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Khefacha</title> <meta name="description" content="Search results for: Salwa Khefacha"> <meta name="keywords" content="Salwa Khefacha"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Salwa Khefacha"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 44</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Salwa Khefacha</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> Sterilization Incident Analysis by the Association of Litigation and Risk Management Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Souhir%20Chelly">Souhir Chelly</a>, <a href="https://publications.waset.org/abstracts/search?q=Asma%20Ben%20Cheikh"> Asma Ben Cheikh</a>, <a href="https://publications.waset.org/abstracts/search?q=Hela%20Ghali"> Hela Ghali</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Khefacha"> Salwa Khefacha</a>, <a href="https://publications.waset.org/abstracts/search?q=Lamine%20Dhidah"> Lamine Dhidah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ben%20Rejeb"> Mohamed Ben Rejeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Houyem%20Said%20Latiri"> Houyem Said Latiri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The hospital risk management department is firstly involved in the methodological analysis of grade zero sterilization incidents. The system is based on a subsequent analysis process in compliance with the ongoing requirements of the Haute Autorité de santé (HAS) for a reactive approach to risk, allowing to identify failures and start the appropriate preventive and corrective measures. The use of the association of litigation and risk management (ALARM) method makes easier the grade zero analysis and brings to light the team or institutional, organizational, temporal, individual factors representative of undesirable effects. Two main factors come out again from this analysis, pre-disinfection step of the emergency block unsupervised instrumentalist intern was poorly done since she did not remove the battery from micro air motor. At the sterilization unit, the worker who was not supervised by the nurse did the conditioning of the motor without having checked it if it still contained the battery. The main cause is that the management of human resources was inadequate at both levels, the instrumental trainee in the block who was not supervised by his supervisor and the worker of the sterilization unit who was not supervised by the responsible nurse. There is a lack of research help, advice, and collaboration. The difficulties encountered during this type of analysis are multiple. The first is based on its necessary acceptance by the various actors of care involved, which should not perceive it as a tool leading to individual punishment, but rather as a means to improve their practices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ALARM%20%28Association%20of%20Litigation%20and%20Risk%20Management%20Method%29" title="ALARM (Association of Litigation and Risk Management Method)">ALARM (Association of Litigation and Risk Management Method)</a>, <a href="https://publications.waset.org/abstracts/search?q=incident" title=" incident"> incident</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20management" title=" risk management"> risk management</a>, <a href="https://publications.waset.org/abstracts/search?q=sterilization" title=" sterilization"> sterilization</a> </p> <a href="https://publications.waset.org/abstracts/87698/sterilization-incident-analysis-by-the-association-of-litigation-and-risk-management-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87698.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">213</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Management of Blood Exposure Risk: Knowledge and Attitudes of Caregivers in Pediatric Dapartments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hela%20Ghali">Hela Ghali</a>, <a href="https://publications.waset.org/abstracts/search?q=Oumayma%20Ben%20Amor"> Oumayma Ben Amor</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Khefacha"> Salwa Khefacha</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ben%20Rejeb"> Mohamed Ben Rejeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Sirine%20Frigui"> Sirine Frigui</a>, <a href="https://publications.waset.org/abstracts/search?q=Meriam%20Tourki%20Dhidah"> Meriam Tourki Dhidah</a>, <a href="https://publications.waset.org/abstracts/search?q=Lamine%20Dhidah"> Lamine Dhidah</a>, <a href="https://publications.waset.org/abstracts/search?q=Houyem%20Said%20Laatiri"> Houyem Said Laatiri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Blood exposure accidents are the most common problem in hospitals that threaten healthcare professionals with a high risk of infectious complications which weighs heavily on health systems worldwide. Paramedics are the highest risk group due to the nature of their daily activities. We aimed to determine knowledge and attitudes about the management of blood-exposure accidents among nurses and technicians in two pediatric departments. Materials/Methods: This is a cross-sectional descriptive study conducted on March 2017, carried out with the care staff of the pediatric ward of the Farhat Hached Teaching Hospital of Sousse and pediatric surgery of the Fattouma Bourguiba University Hospital in Monastir, using a pre- tested and self-administered questionnaire. Data entry and analysis were performed using Excel software. Results: The response rate was 85.1%. A female predominance (82.5%) was reported among respondents with a sex ratio of 0.21. 80% of the participants were under 35 years old. Seniority of less than 10 years was found in 77.5% of respondents. Only 22.5% knew the definition of a blood- exposure accident. 100% and 95% of participants reported the relative risk, respectively, to hepatitis and AIDS viruses. However, only 15% recognized the severity factors of a blood-exposure accident. Hygiene compliance was the most important dimension for almost the entire population for the prevention. On the other hand, only 12.5% knew the meaning of 'standard precautions' and ¼ considered them necessary for at-risk patients only. 40% reported being exposed at least once, among them, 87.5% used betadine, and 77.5% said that anti-infectious chemoprophylaxis is necessary regardless of the patient's serological status. However, 52.5% did not know the official reporting circuit of management of blood-exposure accident in their institutions. Conclusion: For better management of risks in hospitals and an improvement of the safety of the care, a reinforcement of the sensibilization of the caregivers with regard to the risks of blood exposure accident is necessary, while developing their knowledge to act in security. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=attitudes" title="attitudes">attitudes</a>, <a href="https://publications.waset.org/abstracts/search?q=blood-exposure%20accident" title=" blood-exposure accident"> blood-exposure accident</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge" title=" knowledge"> knowledge</a>, <a href="https://publications.waset.org/abstracts/search?q=pediatric%20department" title=" pediatric department"> pediatric department</a> </p> <a href="https://publications.waset.org/abstracts/83862/management-of-blood-exposure-risk-knowledge-and-attitudes-of-caregivers-in-pediatric-dapartments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83862.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">196</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> Control of an Outbreak of Vancomycin-Resistant Enterococci in a Tunisian Teaching Hospital </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hela%20Ghali">Hela Ghali</a>, <a href="https://publications.waset.org/abstracts/search?q=Sihem%20Ben%20Fredj"> Sihem Ben Fredj</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ben%20Rejeb"> Mohamed Ben Rejeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Sawssen%20Layouni"> Sawssen Layouni</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Khefacha"> Salwa Khefacha</a>, <a href="https://publications.waset.org/abstracts/search?q=Lamine%20Dhidah"> Lamine Dhidah</a>, <a href="https://publications.waset.org/abstracts/search?q=Houyem%20Said%20Laatiri"> Houyem Said Laatiri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Antimicrobial resistance is a growing threat to public health and motivates to improve prevention and control programs both at international (WHO) and national levels. Despite their low pathogenicity, vancomycin-resistant enterococci (VRE) are common nosocomial pathogens in several countries. The high potential for transmission of VRE between patients and the threat to send its resistance genes to other bacteria such as staphylococcus aureus already resistant to meticilin, justify strict control measures. Indeed, in Europe, the proportion of Enterococcus faecium responsible for invasive infections, varies from 1% to 35% in 2011 and less than 5% were resistant to vancomycin. In addition, it represents the second cause of urinary tract and wound infections and the third cause of nosocomial bacteremia in the United States. The nosocomial outbreaks of VRE have been mainly described in intensive care services, hematology-oncology and haemodialysis. An epidemic of VRE has affected our hospital and the objective of this work is to describe the measures put in place. Materials/Methods: Following the alert given by the service of plastic surgery concerning a patient carrier of VRE, a team of the prevention and healthcare security service (doctor + technician) made an investigation. A review of files was conducted to draw the synoptic table and the table of cases. Results: By contacting the microbiology laboratory, we have identified four other cases of VRE and who were hospitalized in Medical resuscitation department (2 cases, one of them was transferred to the Physical rehabilitation department), and Nephrology department (2 cases). The visit has allowed to detect several malfunctions in professional practice. A crisis cell has allowed to validate, coordinate and implement control measures following the recommendations of the Technical Center of nosocomial infections. In fact, the process was to technically isolate cases in their sector of hospitalization, to restrict the use of antibiotics, to strength measures of basic hygiene, and to make a screening by rectal swab for both cases and contacts (other patients and health staff). These measures have helped to control the situation and no other case has been reported for a month. 2 new cases have been detected in the intensive care unit after a month. However, these are short-term strategies, and other measures in the medium and long term should be taken into account in order to face similar outbreaks. Conclusion: The efforts to control the outbreak were not efficient since 2 new cases have been reported after a month. Therefore, a continuous monitoring in order to detect new cases earlier is crucial to minimize the dissemination of VRE. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hospitals" title="hospitals">hospitals</a>, <a href="https://publications.waset.org/abstracts/search?q=nosocomial%20infection" title=" nosocomial infection"> nosocomial infection</a>, <a href="https://publications.waset.org/abstracts/search?q=outbreak" title=" outbreak"> outbreak</a>, <a href="https://publications.waset.org/abstracts/search?q=vancomycin-resistant%20enterococci" title=" vancomycin-resistant enterococci"> vancomycin-resistant enterococci</a> </p> <a href="https://publications.waset.org/abstracts/66361/control-of-an-outbreak-of-vancomycin-resistant-enterococci-in-a-tunisian-teaching-hospital" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66361.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">301</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> Leadership and Whether It Stems from Innate Abilities or from Situation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Abdelbaki">Salwa Abdelbaki</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research investigated how leaders develop, asking whether they have been leaders due to their innate abilities or they gain leadership characteristics through interactions based on requirements of a situation. If the first is true, then a leader should be successful in any situation. Otherwise, a leader may succeed only in a specific situation. A series of experiments were carried out on three groups including of males and females. First; a group of 148 students with different specializations had to select a leader. Another group of 51 students had to recall their previous experiences and their knowledge of each other to identify who were leaders in different situations. Then a series of analytic tools were applied to the identified leaders and to the whole groups to find out how leaders were developed. A group of 40 young children was also experimented with to find young leaders among them and to analyze their characteristics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=leadership" title="leadership">leadership</a>, <a href="https://publications.waset.org/abstracts/search?q=innate%20characteristics" title=" innate characteristics"> innate characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=situation" title=" situation"> situation</a>, <a href="https://publications.waset.org/abstracts/search?q=leadership%20theories" title=" leadership theories"> leadership theories</a> </p> <a href="https://publications.waset.org/abstracts/68897/leadership-and-whether-it-stems-from-innate-abilities-or-from-situation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68897.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Impact of Grade Sensitivity on Learning Motivation and Academic Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Aftab">Salwa Aftab</a>, <a href="https://publications.waset.org/abstracts/search?q=Sehrish%20Riaz"> Sehrish Riaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to check the impact of grade sensitivity on learning motivation and academic performance of students and to remove the degree of difference that exists among students regarding the cause of their learning motivation and also to gain knowledge about this matter since it has not been adequately researched. Data collection was primarily done through the academic sector of Pakistan and was depended upon the responses given by students solely. A sample size of 208 university students was selected. Both paper and online surveys were used to collect data from respondents. The results of the study revealed that grade sensitivity has a positive relationship with the learning motivation of students and their academic performance. These findings were carried out through systematic correlation and regression analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=academic%20performance" title="academic performance">academic performance</a>, <a href="https://publications.waset.org/abstracts/search?q=correlation" title=" correlation"> correlation</a>, <a href="https://publications.waset.org/abstracts/search?q=grade%20sensitivity" title=" grade sensitivity"> grade sensitivity</a>, <a href="https://publications.waset.org/abstracts/search?q=learning%20motivation" title=" learning motivation"> learning motivation</a>, <a href="https://publications.waset.org/abstracts/search?q=regression" title=" regression"> regression</a> </p> <a href="https://publications.waset.org/abstracts/53128/impact-of-grade-sensitivity-on-learning-motivation-and-academic-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53128.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">400</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> Protein-Thiocyanate Composite as a Sensor for Iron III Cations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hosam%20El-Sayed">Hosam El-Sayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Amira%20%20Abou%20El-Kheir"> Amira Abou El-Kheir</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Mowafi"> Salwa Mowafi</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20Abou%20Taleb"> Marwa Abou Taleb</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Two proteinic biopolymers; namely keratin and sericin, were extracted from their respective natural resources by simple appropriate methods. The said proteins were dissolved in the appropriate solvents followed by regeneration in a form of film polyvinyl alcohol. Proteinium thiocyanate (PTC) composite was prepared by reaction of a regenerated film with potassium thiocyanate in acid medium. In another experiment, the said acidified proteins were reacted with potassium thiocyante before dissolution and regeneration in a form of PTC composite. The possibility of using PTC composite for determination of the concentration of iron III ions in domestic as well as industrial water was examined. The concentration of iron III cations in water was determined spectrophotometrically by measuring the intensity of blood red colour of iron III thiocyanate obtained by interaction of PTC with iron III cation in the tested water sample. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=iron%20III%20cations" title="iron III cations">iron III cations</a>, <a href="https://publications.waset.org/abstracts/search?q=protein" title=" protein"> protein</a>, <a href="https://publications.waset.org/abstracts/search?q=sensor" title=" sensor"> sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=thiocyanate" title=" thiocyanate"> thiocyanate</a>, <a href="https://publications.waset.org/abstracts/search?q=water" title=" water"> water</a> </p> <a href="https://publications.waset.org/abstracts/52322/protein-thiocyanate-composite-as-a-sensor-for-iron-iii-cations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52322.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">429</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> Causality between the Construction Industry and the GDP in the United Arab Emirates</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hasan%20S.%20Mahmoud">Hasan S. Mahmoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20M.%20Beheiry"> Salwa M. Beheiry</a>, <a href="https://publications.waset.org/abstracts/search?q=Vian%20Ahmed"> Vian Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In light of the repercussions of the 2008 global economic crisis, the response of the United Arab Emirates economy and growth, and the vast construction activities that are undergoing, there is a need to investigate the relationship between construction activities and the Gross Domestic Product (GDP). This study aims to investigate the causality relationship between the construction industry in the United Arab Emirates and the GDP of the country in the last decade. For that, this study will investigate the relationship between the growth of the GDP and the growth of construction activities and their value addition to the economy. To ascertain this relationship, Granger Causality method is used to identify the causality between the time-dependent series. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=construction%20value%20addition" title="construction value addition">construction value addition</a>, <a href="https://publications.waset.org/abstracts/search?q=Granger%20causality" title=" Granger causality"> Granger causality</a>, <a href="https://publications.waset.org/abstracts/search?q=growth%20of%20gross%20domestic%20product" title=" growth of gross domestic product"> growth of gross domestic product</a>, <a href="https://publications.waset.org/abstracts/search?q=United%20Arab%20Emirates" title=" United Arab Emirates"> United Arab Emirates</a> </p> <a href="https://publications.waset.org/abstracts/123043/causality-between-the-construction-industry-and-the-gdp-in-the-united-arab-emirates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123043.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">145</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Perceptions of Tunisian EFL Students toward Their Writing Difficulties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Enneifer">Salwa Enneifer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research is intended to investigate Tunisian students’ own perception of the difficulties they encounter in the writing task. To achieve this objective, a questionnaire was administered to students enrolled in the ‘Faculty of Letters Arts and Humanities’ in Kairouan, in Tunisia. Students were classified into three groups: first-, second-, and third-year students. The researcher used 120 questionnaires filled in by the students as data for this study; moreover, 30 students participated in a semi-structured interview to complete the data. The questionnaire results revealed that Tunisian EFL students faced spelling and grammar difficulties. ANOVA also revealed that the first-year students did not recognise that Arabic and English greatly differ in their respective punctuation systems. The second-year class, however, was fully aware of this difference. Additionally, the interview shed light on other aspects or different difficulties experienced by students in writing: a cruel ‘lack of vocabulary’, Arabic language interference, the organisation of the essay and especially the academic essay, and difficulty with writing an argumentative essay. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=difficulties" title="difficulties">difficulties</a>, <a href="https://publications.waset.org/abstracts/search?q=writing" title=" writing"> writing</a>, <a href="https://publications.waset.org/abstracts/search?q=Tunisian" title=" Tunisian"> Tunisian</a>, <a href="https://publications.waset.org/abstracts/search?q=EFL%20students" title=" EFL students"> EFL students</a> </p> <a href="https://publications.waset.org/abstracts/139398/perceptions-of-tunisian-efl-students-toward-their-writing-difficulties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139398.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">241</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Study of Rheological, Physic-Mechanical and Morphological Properties of Nitrile Butadiene Rubber Loaded with Organo-Bentonite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20S.%20Mahmoud">Doaa S. Mahmoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Nivin%20M.%20Ahmed"> Nivin M. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20H.%20El-Sabbagh"> Salwa H. El-Sabbagh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The rheometric characteristics and physicomechanical properties of bentonite / acrylonitrile-butadiene rubber (NBR) were investigated. The influences of adding bentonite (Bt) and / or modified bentonite (organo-Bt) to the rubber were observed. Scanning electron microscopy (SEM) showed that the rubber chains may be confined within the interparticle space and the Bt particles presented a physical dispersion in NBR matrix. Bentonite (Bt) was modified with tetra butyl phosphonium bromide (TBP) in order to produce organo-Bt. The modification was carried out at 0.5, 1 and 2 cation exchange capacity (CEC) of bentonite. Results showed that the maximum torque of organo-Bt / NBR composite increases at high bentonite loading. The scorch time (tS2) and cure time (tC90) of the organo-Bt / NBR composites decreased simultaneously relative to those of the neat NBR. The prepared composite exhibited significant improvement in mechanical compared with that of neat NBR. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acrylonitrile-butadiene%20rubber" title="acrylonitrile-butadiene rubber">acrylonitrile-butadiene rubber</a>, <a href="https://publications.waset.org/abstracts/search?q=bentonite" title=" bentonite"> bentonite</a>, <a href="https://publications.waset.org/abstracts/search?q=composites" title=" composites"> composites</a>, <a href="https://publications.waset.org/abstracts/search?q=physico-mechanical%20properties" title=" physico-mechanical properties"> physico-mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/71828/study-of-rheological-physic-mechanical-and-morphological-properties-of-nitrile-butadiene-rubber-loaded-with-organo-bentonite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71828.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">264</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Visfatin and Apelin Are New Interrelated Adipokines Playing Role in the Pathogenesis of Type 2 Diabetes Mellitus Associated Coronary Artery Disease in Postmenopausal Women</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hala%20O.%20El-Mesallamy">Hala O. El-Mesallamy</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20M.%20Suwailem"> Salwa M. Suwailem</a>, <a href="https://publications.waset.org/abstracts/search?q=Mae%20M.%20Seleem"> Mae M. Seleem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Visfatin and apelin are two new adipokines that recently gained a special interest in diabetes research. This study was conducted to study the interplay between these two adipokines and their correlation with other inflammatory and biochemical parameters in type 2 diabetic (T2D) postmenopausal women with CAD. Visfatin and apelin were measured by enzyme-linked immunoassay (ELISA). Visfatin was found to be significantly higher in the following groups: T2D patients without CAD, non-obese and obese T2D patients with CAD when compared to control group. Apelin was found to be significantly lower in non-obese and obese T2D patients with CAD when compared to control group. Visfatin and apelin were found to be significantly associated with each other and with other biochemical parameters. The current study provides evidence for the interplay between visfatin and apelin through the inflammatory milieu characteristic of T2D and their possible role in the pathogenesis of CAD complication of T2D. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=apelin" title="apelin">apelin</a>, <a href="https://publications.waset.org/abstracts/search?q=coronary%20artery%20disease" title=" coronary artery disease"> coronary artery disease</a>, <a href="https://publications.waset.org/abstracts/search?q=inflammation" title=" inflammation"> inflammation</a>, <a href="https://publications.waset.org/abstracts/search?q=type%202%20diabetes" title=" type 2 diabetes"> type 2 diabetes</a>, <a href="https://publications.waset.org/abstracts/search?q=visfatin" title=" visfatin"> visfatin</a> </p> <a href="https://publications.waset.org/abstracts/1845/visfatin-and-apelin-are-new-interrelated-adipokines-playing-role-in-the-pathogenesis-of-type-2-diabetes-mellitus-associated-coronary-artery-disease-in-postmenopausal-women" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1845.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">252</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> An Easy-Applicable Method for In situ Silver Nanoparticles Preparation into Wool Fibers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Mowafi">Salwa Mowafi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Rehan"> Mohamed Rehan</a>, <a href="https://publications.waset.org/abstracts/search?q=Hany%20Kafafy"> Hany Kafafy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, three different systems including room temperature, conventional water bath heating and microwave irradiation technique will be employed in the fabrication of silver nanoparticle-wool fibers. The silver nanoparticles will be synthesized in-situ incorporated into wool fibers under redox active bio-template of wool protein which facilitates the reduction of Ag+ to nanoparticulate Ag0. Silver NPs incorporated wool fiber will be characterized by scanning electron microscopy, energy dispersive X-ray, FTIR, TGA, silver content and X-ray photoelectron spectroscopy. The mechanism of binding Ag NPs in-situ incorporated wool fibers matrix will be discussed. The effect of silver nanoparticles on the coloration, antimicrobial, UV-protection and catalytic properties of the wool fibers will be evaluated. The overall results of this study indicate that the Ag NPs in-situ incorporated wool fibers will be applied as colorants for wool fibers with improving in its multi-functionality properties. So, this study provides a simple approach for innovative protein fibers design by applying the optical properties of Plasmonic noble metal nanoparticles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microwave%20irradiation%20technique" title="microwave irradiation technique">microwave irradiation technique</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-functionality%20properties" title=" multi-functionality properties"> multi-functionality properties</a>, <a href="https://publications.waset.org/abstracts/search?q=silver%20nanoparticles" title=" silver nanoparticles"> silver nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=wool%20fibers" title=" wool fibers"> wool fibers</a> </p> <a href="https://publications.waset.org/abstracts/52765/an-easy-applicable-method-for-in-situ-silver-nanoparticles-preparation-into-wool-fibers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52765.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">207</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Assessing Indicators, Challenges and Benefits of Sustainable Procurement in Construction Projects</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Taha%20Anjamrooz">Taha Anjamrooz</a>, <a href="https://publications.waset.org/abstracts/search?q=Sareh%20Rajabi"> Sareh Rajabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Bheiry"> Salwa Bheiry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Procurement is a key process in construction project management. The present construction procurement practices have been extensively analyzed for disregarding sustainability in the project life cycle. Currently, there is a gap of information on status-quo of sustainable procurement in construction field. Thus, the aim of this study is to review sustainable procurement practices in the construction field. Disregard of three sustainability pillars is one of the major drawbacks of present construction procurement practices. Sustainable procurement is a developing idea that can enhance procurement practices and improve the sustainability performance of the construction projects. At present, sustainable procurement is still not entirely used in the construction projects. A comprehensive literature review indicated that the construction industry is still not entirely informed about the benefits and challenges of using sustainable procurement, and about important indicators that play major impacts on those benefits and challenges. This study assesses the major indicator, benefits and challenges encountered in applying sustainable procurement in the construction industry. In addition, this study investigates understanding of construction professionals on the benefits and challenges of utilizing sustainable procurement for construction projects through selected indicators that are categorized according to society and community needs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sustainability" title="sustainability">sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title=" sustainable development"> sustainable development</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20procurement" title=" sustainable procurement"> sustainable procurement</a>, <a href="https://publications.waset.org/abstracts/search?q=procurement" title=" procurement"> procurement</a>, <a href="https://publications.waset.org/abstracts/search?q=construction%20industry" title=" construction industry"> construction industry</a> </p> <a href="https://publications.waset.org/abstracts/128125/assessing-indicators-challenges-and-benefits-of-sustainable-procurement-in-construction-projects" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128125.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">194</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Chemical Profiling of Farsetia Aegyptia Turra and Farsetia Longisiliqua Decne. and Their Chemosystematic Significance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mona%20M.%20Marzouk">Mona M. Marzouk</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Elkhateeb"> Ahmed Elkhateeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Mona%20Elshabrawy"> Mona Elshabrawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mai%20M.%20Farid"> Mai M. Farid</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20A.%20Kawashty"> Salwa A. Kawashty</a>, <a href="https://publications.waset.org/abstracts/search?q=EL-Sayed%20S.%20Abdel-Hameed"> EL-Sayed S. Abdel-Hameed</a>, <a href="https://publications.waset.org/abstracts/search?q=Sameh%20R.%20Hussein"> Sameh R. Hussein</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The genus Farsetia Turra belongs to the family Brassicaceae and has approximately 30 accepted species distributed worldwide. Amongst them, Farsetia aegyptia Turra and Farsetia longisiliqua Decne. are two common species characteristic to the Egyptian flora. The present study considers the first characterization of the chemical constituents of F. longisiliqua, aiming to compare with those identified from the medicinal species (F. aegyptia). Additionally, the chemosystematic relationships between the two studied species were evaluated and highlight the medicinal importance for F. longisiliqua. The chemical profiling of their aqueous methanol extracts were carried out using the LC-ESI-MS technique and afforded 54 compounds belonging to different chemical groups. Flavonoids are the major constituents and are represented by 32 compounds (two C-glycosyl flavone, four flavones, and 26 flavonols). Their structural variations and common constituents confirmed the chemosystematic significance of the two species. Moreover, the flavonoid profiles showed major common constituents between the two investigated species, which predicted the medicinal importance of F. longisiliqua. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brassicaceae" title="brassicaceae">brassicaceae</a>, <a href="https://publications.waset.org/abstracts/search?q=chemosystematics" title=" chemosystematics"> chemosystematics</a>, <a href="https://publications.waset.org/abstracts/search?q=farsetia" title=" farsetia"> farsetia</a>, <a href="https://publications.waset.org/abstracts/search?q=flavonoids" title=" flavonoids"> flavonoids</a>, <a href="https://publications.waset.org/abstracts/search?q=glucosinolates" title=" glucosinolates"> glucosinolates</a>, <a href="https://publications.waset.org/abstracts/search?q=LC-ESI-MS" title=" LC-ESI-MS"> LC-ESI-MS</a> </p> <a href="https://publications.waset.org/abstracts/131531/chemical-profiling-of-farsetia-aegyptia-turra-and-farsetia-longisiliqua-decne-and-their-chemosystematic-significance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131531.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">209</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> The Right to State Lands: A Case Study of a Squatter Community in Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Salman">Salwa Salman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> On February 2016, Egypt’s President Abdel Fattah Al-Sisi ordered the former Prime Minister, Ibrahim Mehleb, to establish a committee responsible for retrieving looted state lands or providing squatters with land titles according to their individual cases. The specificity of desert lands emerges from its unique position in both Islamic law and Egypt’s Civil Code. In Egypt, desert lands can be transferred to private ownership through peaceful occupation and cultivation. This study explores the (re-) conceptualization of land rights, state territoriality, and sovereignty as a part of an emerging narrative on informal land tenure. Through the lens of an informal settlement, the study employs methodological insights from studies in the anthropology of development and their interpretation of Foucauldian discourse analysis to examine official representations on squatting over state lands and put them in conversation with individual narratives on land ownership and dispossession. It also employs Bruno Latour’s actor-network theory to explore the development of social networks through primary land contracts and informal local resource management. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=State%20lands" title="State lands">State lands</a>, <a href="https://publications.waset.org/abstracts/search?q=squatter%20community" title=" squatter community"> squatter community</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamic%20law" title=" Islamic law"> Islamic law</a>, <a href="https://publications.waset.org/abstracts/search?q=Egypt%E2%80%99s%20Civil%20Code" title=" Egypt’s Civil Code"> Egypt’s Civil Code</a> </p> <a href="https://publications.waset.org/abstracts/93499/the-right-to-state-lands-a-case-study-of-a-squatter-community-in-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93499.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">171</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> A Fundamental Study on the Molecular Chemistry of Agarwood Water Mixture </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fatmawati%20Adam">Fatmawati Adam</a>, <a href="https://publications.waset.org/abstracts/search?q=Saidatul%20Syaima%20Mat%20Tari"> Saidatul Syaima Mat Tari</a>, <a href="https://publications.waset.org/abstracts/search?q=Saiful%20Nizam%20Tajuddin"> Saiful Nizam Tajuddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurul%20Salwa%20Azliyana%20Hamzah"> Nurul Salwa Azliyana Hamzah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Essential oil of agarwood or known as Gaharu in Malay is highly prized for its value as luxury fragrances and incense. However, the complexities of the chemical composition of agarwood itself is the main challenge for establishment of an effective recovery method, which is able to ensure uniform qualities and standard for each batch of essential oil production. Agarwood markers are actually a blend of volatile and non-volatile compounds. While volatile molecules could be easily retrieved by the present distillation technique, the high solubility properties are the limiting factor for the latter. With regard to this, an elementary chemistry resolution study had been performed on commercial agarwood essential oil-water mixture, by the application of preparative HPLC and FTIR. Interpretation of the results leads to the theoretical postulation that, agarwood water mixture comprise of agarospirol, jinkohol, jinkoh eremol and khusenol. This study provides a pinpoint on the chemical characteristics of water soluble (non-volatile) agarwood compounds, therefore, will be an insight for researchers to develop a more strategic technique for their extraction. Thereafter the optimum quality of this essential oil could be controlled in a more improved way. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Agarwood" title="Agarwood">Agarwood</a>, <a href="https://publications.waset.org/abstracts/search?q=Aquillaria%20Malaccensis" title=" Aquillaria Malaccensis"> Aquillaria Malaccensis</a>, <a href="https://publications.waset.org/abstracts/search?q=agarospirol" title=" agarospirol"> agarospirol</a>, <a href="https://publications.waset.org/abstracts/search?q=jinkohol" title=" jinkohol"> jinkohol</a>, <a href="https://publications.waset.org/abstracts/search?q=jinkoh%20eremol" title=" jinkoh eremol"> jinkoh eremol</a>, <a href="https://publications.waset.org/abstracts/search?q=khusenol" title=" khusenol"> khusenol</a> </p> <a href="https://publications.waset.org/abstracts/16900/a-fundamental-study-on-the-molecular-chemistry-of-agarwood-water-mixture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16900.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">548</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Discriminant Function Based on Circulating Tumor Cells for Accurate Diagnosis of Metastatic Breast Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hatem%20A.%20El-Mezayen">Hatem A. El-Mezayen</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abdelmajeed"> Ahmed Abdelmajeed</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatehya%20Metwally"> Fatehya Metwally</a>, <a href="https://publications.waset.org/abstracts/search?q=Usama%20Elsaly"> Usama Elsaly</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Atef"> Salwa Atef</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Tumor metastasis involves the dissemination of malignant cells into the basement membrane and vascular system contributes to the circulating pool of these markers. In this context our aim has been focused on development of a non-invasive. Circulating tumor cells (CTCs) represent a unique liquid biopsy carrying comprehensive biological information of the primary tumor. Herein, we sought to develop a novel score based on the combination of the most significant CTCs biomarkers with and routine laboratory tests for accurate detection of metastatic breast cancer. Methods: Cytokeratin 18 (CK18), Cytokeratin 19 (CK19), and CA15.3 were assayed in metastatic breast cancer (MBC) patients (75), non-MBC patients (50) and healthy control (20). Results: Areas under receiving operating curve (AUCs) were calculated and used for construction on novel score. A novel score named MBC-CTCs = CA15.3 (U/L) × 0.08 + CK 18 % × 2.9 + CK19 × 3.1– 510. That function correctly classified 87% of metastatic breast cancer at cut-off value = 0.55. (i.e great than 0.55 indicates patients with metastatic breast cancer and less than 0.55 indicates patients with non-metastatic breast cancer). Conclusion: MBC-CTCs is a novel, non-invasive and simple can applied to discriminate patients with metastatic breast cancer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metastatic%20breast%20cancer" title="metastatic breast cancer">metastatic breast cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=circulating%20tumor%20cells" title=" circulating tumor cells"> circulating tumor cells</a>, <a href="https://publications.waset.org/abstracts/search?q=cytokeratin" title=" cytokeratin"> cytokeratin</a>, <a href="https://publications.waset.org/abstracts/search?q=EpiCam" title=" EpiCam"> EpiCam</a> </p> <a href="https://publications.waset.org/abstracts/146716/discriminant-function-based-on-circulating-tumor-cells-for-accurate-diagnosis-of-metastatic-breast-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146716.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">214</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Attributable Mortality of Nosocomial Infection: A Nested Case Control Study in Tunisia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Ben%20Fredj">S. Ben Fredj</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Ghali"> H. Ghali</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Ben%20Rejeb"> M. Ben Rejeb</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Layouni"> S. Layouni</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Khefacha"> S. Khefacha</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Dhidah"> L. Dhidah</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Said"> H. Said</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: The Intensive Care Unit (ICU) provides continuous care and uses a high level of treatment technologies. Although developed country hospitals allocate only 5–10% of beds in critical care areas, approximately 20% of nosocomial infections (NI) occur among patients treated in ICUs. Whereas in the developing countries the situation is still less accurate. The aim of our study is to assess mortality rates in ICUs and to determine its predictive factors. Methods: We carried out a nested case-control study in a 630-beds public tertiary care hospital in Eastern Tunisia. We included in the study all patients hospitalized for more than two days in the surgical or medical ICU during the entire period of the surveillance. Cases were patients who died before ICU discharge, whereas controls were patients who survived to discharge. NIs were diagnosed according to the definitions of ‘Comité Technique des Infections Nosocomiales et les Infections Liées aux Soins’ (CTINLIS, France). Data collection was based on the protocol of Rea-RAISIN 2009 of the National Institute for Health Watch (InVS, France). Results: Overall, 301 patients were enrolled from medical and surgical ICUs. The mean age was 44.8 ± 21.3 years. The crude ICU mortality rate was 20.6% (62/301). It was 35.8% for patients who acquired at least one NI during their stay in ICU and 16.2% for those without any NI, yielding an overall crude excess mortality rate of 19.6% (OR= 2.9, 95% CI, 1.6 to 5.3). The population-attributable fraction due to ICU-NI in patients who died before ICU discharge was 23.46% (95% CI, 13.43%–29.04%). Overall, 62 case-patients were compared to 239 control patients for the final analysis. Case patients and control patients differed by age (p=0,003), simplified acute physiology score II (p < 10-3), NI (p < 10-3), nosocomial pneumonia (p=0.008), infection upon admission (p=0.002), immunosuppression (p=0.006), days of intubation (p < 10-3), tracheostomy (p=0.004), days with urinary catheterization (p < 10-3), days with CVC ( p=0.03), and length of stay in ICU (p=0.003). Multivariate analysis demonstrated 3 factors: age older than 65 years (OR, 5.78 [95% CI, 2.03-16.05] p=0.001), duration of intubation 1-10 days (OR, 6.82 [95% CI, [1.90-24.45] p=0.003), duration of intubation > 10 days (OR, 11.11 [95% CI, [2.85-43.28] p=0.001), duration of CVC 1-7 days (OR, 6.85[95% CI, [1.71-27.45] p=0.007) and duration of CVC > 7 days (OR, 5.55[95% CI, [1.70-18.04] p=0.004). Conclusion: While surveillance provides important baseline data, successful trials with more active intervention protocols, adopting multimodal approach for the prevention of nosocomial infection incited us to think about the feasibility of similar trial in our context. Therefore, the implementation of an efficient infection control strategy is a crucial step to improve the quality of care. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intensive%20care%20unit" title="intensive care unit">intensive care unit</a>, <a href="https://publications.waset.org/abstracts/search?q=mortality" title=" mortality"> mortality</a>, <a href="https://publications.waset.org/abstracts/search?q=nosocomial%20infection" title=" nosocomial infection"> nosocomial infection</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20factors" title=" risk factors"> risk factors</a> </p> <a href="https://publications.waset.org/abstracts/66366/attributable-mortality-of-nosocomial-infection-a-nested-case-control-study-in-tunisia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66366.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">406</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> Chemical Characterization of Octopus Vulgaris Ink and Evaluation of its in-vitro Antioxidant, Antimicrobial, and Anti-Schistosomicidal Activities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20A.%20H.%20Hamdi">Salwa A. H. Hamdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Maha%20A.%20M.%20El-Shazly"> Maha A. M. El-Shazly</a>, <a href="https://publications.waset.org/abstracts/search?q=Mona%20Fathi%20Fol"> Mona Fathi Fol</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanan%20S.%20Mossalem"> Hanan S. Mossalem</a>, <a href="https://publications.waset.org/abstracts/search?q=Mosad%20A.%20Ghareeb"> Mosad A. Ghareeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20M.%20Ibrahim"> Amina M. Ibrahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most distinctive and defining features of cephalopods squid, cuttlefish, and Octopus is their inking behavior. Their ink, which is blackened by melanin but also contains other constituents, has been used by humans in various ways for millennia. The present study aims to investigate the chemical profiling of the Octopus vulgaris ink extract and to evaluate its antioxidant, antimicrobial, and anti-schistosomal activities. The present results showed that GC-MS examination of Octopus vulgaris ink comprises 21 compounds. The main detected compounds are (E)-1, 2, 3, 4-Tetra (4-phenylphenyl)-2-butene-1,4-dione, Lipo-3-episapelin A, and 5,10-Dihexyltetrabenzoporphyrin. Results showed that the octopus ink had antioxidant capacity and the capability to mask DPPH free radicals in comparison with ascorbic acid. Octopus Vulgaris ink extract had inhibitory action against three gram-positive bacteria, Streptococcus faecalis, Staphylococcus aureus, and Bacillus subtilis, and three gram-negative bacteria, Neisseria gonorrhoeae, Escherichia coli, and Pseudomonas aeuroginosa. Additionally, the extracted ink revealed antifungal activity against Aspergillus flavus and yeast as Candida albicans. The obtained data indicated the effectiveness of ink extract in pharmaceutical industries as an antioxidant, antimicrobial and antischistosomicidal <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antimicrobial" title="antimicrobial">antimicrobial</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title=" antioxidant"> antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=ink" title=" ink"> ink</a>, <a href="https://publications.waset.org/abstracts/search?q=octopus%20vulgaris" title=" octopus vulgaris"> octopus vulgaris</a> </p> <a href="https://publications.waset.org/abstracts/160772/chemical-characterization-of-octopus-vulgaris-ink-and-evaluation-of-its-in-vitro-antioxidant-antimicrobial-and-anti-schistosomicidal-activities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/160772.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">95</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> New Challenge: Reduction of Aflatoxin M1 Residues in Cow’s Milk by MilBond Dietary Hydrated Sodium Calcium Aluminosilicate (HSCAS) and Its Effect on Milk Composition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Aly%20Salwa">A. Aly Salwa</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Diekmann"> H. Diekmann</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Hafiz%20Ragaa"> S. Hafiz Ragaa</a>, <a href="https://publications.waset.org/abstracts/search?q=DG%20Abo%20Elhassan"> DG Abo Elhassan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was aimed to evaluate the effect of Milbond (HSCAS) on aflatoxin M1 in artificially contaminated cows milk. Chemisorption compounds used in this experiment were MIlBond, hydrated sodium calcium aluminosilicate (HSCAS). Raw cow milk were artificially exposed to aflatoxin M1 in a concentration of 100 ppb) with addition of Nilbond at 0.5, 1, 2 and 3 % at room temperature for 30 minutes. Aflatoxin M1 was decreased more than 95% by HSCAS at 2%. Milk composition consist of protein, fat, lactose, solid non fat and total solid were affected by addition of some adsorbents were not significantly affected (p 0.05). Tthis method did not involve degrading the toxin, milk may be free from toxin degradation products and is safe for consumption. In addition, the added material may be easily separated from milk after the substance adsorbs the toxin. Thus, this method should be developed by further researches for determining effects of these compounds on functional properties of milk. The ability of hydrated sodium calcium aluminosilicate to prevent or reduce the level of aflatoxin MI residues in milk is critically needed. This finding has important implications, because milk is ultimately consumed by humans and animals, and the reduction of aflatoxin contamination in the milk could have an important impact on their health. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aflatoxin%20M1" title="aflatoxin M1">aflatoxin M1</a>, <a href="https://publications.waset.org/abstracts/search?q=Hydrated%20sodium%20calcium%20aluminium%20silicate" title=" Hydrated sodium calcium aluminium silicate"> Hydrated sodium calcium aluminium silicate</a>, <a href="https://publications.waset.org/abstracts/search?q=detoxification" title=" detoxification"> detoxification</a>, <a href="https://publications.waset.org/abstracts/search?q=raw%20cow%20milk" title=" raw cow milk"> raw cow milk</a> </p> <a href="https://publications.waset.org/abstracts/24505/new-challenge-reduction-of-aflatoxin-m1-residues-in-cows-milk-by-milbond-dietary-hydrated-sodium-calcium-aluminosilicate-hscas-and-its-effect-on-milk-composition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24505.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">436</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Numerical Study of Fluid Flow and Heat Transfer in the Spongy-Porous Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zeinab%20Sayed%20Abdel%20Rehim">Zeinab Sayed Abdel Rehim</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Ziada"> M. A. Ziada</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Salwa%20El-Deeb"> H. Salwa El-Deeb </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerical study of fluid flow, heat transfer and thermal energy storing or released in/from spongy-porous media to predict the thermal performance and characteristics of the porous media as packed bed system is presented in this work. This system is cylindrical channel filled with porous media (carbon foam). The system consists of working fluid (air) and spongy-porous medium; they act as the heat exchanger (heating or cooling modes) where thermal interaction occurs between the working fluid and the porous medium. The spongy-porous media are defined by the different type of porous medium employed in the storing or cooling modes. Two different porous media are considered in this study: Carbon foam, and Silicon rubber. The flow of the working fluid (air) is one dimensional in the axial direction from the top to downward and steady state conditions. The numerical results of transient temperature distribution for both working fluid and the spongy-porous medium phases and the amount of stored/realized heat inside/from the porous medium for each case with respect to the operating parameters and the spongy-porous media characteristics are illustrated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fluid%20flow" title="fluid flow">fluid flow</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20analysis" title=" numerical analysis"> numerical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=spongy-porous%20media" title=" spongy-porous media"> spongy-porous media</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20performance" title=" thermal performance"> thermal performance</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20conditions" title=" transient conditions"> transient conditions</a> </p> <a href="https://publications.waset.org/abstracts/30266/numerical-study-of-fluid-flow-and-heat-transfer-in-the-spongy-porous-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30266.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">545</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Nurse’s Role in Early Detection of Breast Cancer through Mammography and Genetic Screening and Its Impact on Patient's Outcome</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Hagag%20Abdelaziz">Salwa Hagag Abdelaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Dorria%20Salem"> Dorria Salem</a>, <a href="https://publications.waset.org/abstracts/search?q=Hoda%20Zaki"> Hoda Zaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Suzan%20Atteya"> Suzan Atteya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Early detection of breast cancer saves many thousands of lives each year via application of mammography and genetic screening and many more lives could be saved if nurses are involved in breast care screening practices. So, the aim of the study was to identify nurse's role in early detection of breast cancer through mammography and genetic screening and its impact on patient's outcome. In order to achieve this aim, 400 women above 40 years, asymptomatic were recruited for mammography and genetic screening. In addition, 50 nurses and 6 technologists were involved in the study. A descriptive analytical design was used. Five tools were utilized: sociodemographic, mammographic examination and risk factors, women's before, during and after mammography, items relaying to technologists, and items related to nurses were also obtained. The study finding revealed that 3% of women detected for malignancy and 7.25% for fibroadenoma. Statistically, significant differences were found between mammography results and age, family history, genetic screening, exposure to smoke, and using contraceptive pills. Nurses have insufficient knowledge about screening tests. Based on these findings the present study recommended involvement of nurses in breast care which is very important to in force population about screening practices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mammography" title="mammography">mammography</a>, <a href="https://publications.waset.org/abstracts/search?q=early%20detection" title=" early detection"> early detection</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20screening" title=" genetic screening"> genetic screening</a>, <a href="https://publications.waset.org/abstracts/search?q=breast%20cancer" title=" breast cancer"> breast cancer</a> </p> <a href="https://publications.waset.org/abstracts/22557/nurses-role-in-early-detection-of-breast-cancer-through-mammography-and-genetic-screening-and-its-impact-on-patients-outcome" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22557.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">562</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Chemical Constituents of Matthiola Longipetala Extracts: In Vivo Antioxidant and Antidiabetic Effects in Alloxan Induced Diabetes Rats</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mona%20Marzouk">Mona Marzouk</a>, <a href="https://publications.waset.org/abstracts/search?q=Nesrine%20Hegazi"> Nesrine Hegazi</a>, <a href="https://publications.waset.org/abstracts/search?q=Aliaa%20Ragheb"> Aliaa Ragheb</a>, <a href="https://publications.waset.org/abstracts/search?q=Mona%20El%20Shabrawy"> Mona El Shabrawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Kawashty"> Salwa Kawashty</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The whole plant of Matthiola longipetala (Brassicaceae) was extracted by 70% methanol to give the total aqueous methanol extract (AME), which was defatted by hexane yielded hexane extract (HE) and defatted AME (DAME). HE was analyzed through GC/MS assay and revealed the detection of 28 non-polar compounds. In addition, the chemical investigation of DAME led to the isolation and purification of twelve flavonoids and three chlorogenic acids. Their structures were interpreted through chemical (complete and partial acid hydrolysis) and spectroscopic analysis (MS, UV, 1D and 2D NMR). Among them, nine compounds have been isolated for the first time from M. longipetala. Moreover, LC-ESI-MS analysis of DAME was achieved to detect additional 46 metabolites, including phospholipids, organic acids, phenolic acids and flavonoids. The biological activity of AME, HE and DAME against alloxan inducing oxidative stress and diabetes in male rats was investigated. Diabetes was induced using a single dose of Alloxan (150 mg/kg b.wt.). HE and DAME significantly increased serum GSH content in rats (37.3±0.7 and 35.9±0.6 mmol/l) compared to diabetic rats (21.8±0.3) and vitamin E (36.2±1.1) at P<0.01. Also, HE, DAME and AME revealed a significant acute anti-hyperglycemic effect potentiated after four weeks of treatment with blood glucose levels of 96.2±5.4, 98.7±6.1 and 98.9±8.6 mg/dl, respectively, compared to diabetic rats (263.4±7.8) and metaformin group (81.9±2.4) at P<0.01. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brassicaceae" title="Brassicaceae">Brassicaceae</a>, <a href="https://publications.waset.org/abstracts/search?q=Flavonoid" title=" Flavonoid"> Flavonoid</a>, <a href="https://publications.waset.org/abstracts/search?q=LCMS%2FMS" title=" LCMS/MS"> LCMS/MS</a>, <a href="https://publications.waset.org/abstracts/search?q=Matthiola" title=" Matthiola"> Matthiola</a> </p> <a href="https://publications.waset.org/abstracts/131597/chemical-constituents-of-matthiola-longipetala-extracts-in-vivo-antioxidant-and-antidiabetic-effects-in-alloxan-induced-diabetes-rats" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131597.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">183</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Contribution of Remote Sensing and GIS to the Study of the Impact of the Salinity of Sebkhas on the Quality of Groundwater: Case of Sebkhet Halk El Menjel (Sousse)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gannouni%20Sonia">Gannouni Sonia</a>, <a href="https://publications.waset.org/abstracts/search?q=Hammami%20Asma"> Hammami Asma</a>, <a href="https://publications.waset.org/abstracts/search?q=Saidi%20Salwa"> Saidi Salwa</a>, <a href="https://publications.waset.org/abstracts/search?q=Rebai%20Noamen"> Rebai Noamen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water resources in Tunisia have experienced quantitative and qualitative degradation, especially when talking about wetlands and Sbekhas. Indeed, the objective of this work is to study the spatio-temporal evolution of salinity for 29 years (from 1987 to 2016). A study of the connection between surface water and groundwater is necessary to know the degree of influence of the Sebkha brines on the water table. The evolution of surface salinity is determined by remote sensing based on Landsat TM and OLI/TIRS satellite images of the years 1987, 2007, 2010, and 2016. The processing of these images allowed us to determine the NDVI(Normalized Difference Vegetation Index), the salinity index, and the surface temperature around Sebkha. In addition, through a geographic information system(GIS), we could establish a map of the distribution of salinity in the subsurface of the water table of Chott Mariem and Hergla/SidiBouAli/Kondar. The results of image processing and the calculation of the index and surface temperature show an increase in salinity downstream of in addition to the sebkha and the development of vegetation cover upstream and the western part of the sebkha. This richness may be due both to contamination by seawater infiltration from the barrier beach of Hergla as well as the passage of groundwater to the sebkha. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spatio-temporal%20monitoring" title="spatio-temporal monitoring">spatio-temporal monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=salinity" title=" salinity"> salinity</a>, <a href="https://publications.waset.org/abstracts/search?q=satellite%20images" title=" satellite images"> satellite images</a>, <a href="https://publications.waset.org/abstracts/search?q=NDVI" title=" NDVI"> NDVI</a>, <a href="https://publications.waset.org/abstracts/search?q=sebkha" title=" sebkha"> sebkha</a> </p> <a href="https://publications.waset.org/abstracts/150699/contribution-of-remote-sensing-and-gis-to-the-study-of-the-impact-of-the-salinity-of-sebkhas-on-the-quality-of-groundwater-case-of-sebkhet-halk-el-menjel-sousse" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150699.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">132</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Improving Swelling Performance Using Industrial Waste Products</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohieldin%20Elmashad">Mohieldin Elmashad</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Yassin"> Salwa Yassin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Expansive soils regarded as one of the most problematic unsaturated formations in the Egyptian arid zones and present a great challenge in civil engineering, in general, and geotechnical engineering, in particular. Severe geotechnical complications and consequent structural damages have been arising due to an excessive and differential volumetric change upon wetting and change in water content. Different studies have been carried out concerning the swelling performance of the expansive soils using different additives including phospho-gypsum as an industrial waste product. However, this paper describes the results of a comprehensive testing programme that was carried out to investigate the effect of phospho-gypsum (PG) and sodium chloride (NaCl), as an additive mixture, on the swelling performance of constituent samples of swelling soils. The constituent samples comprise commercial bentonite collected from a natural site, mixed with different percentages of PG-NaCl mixture. The testing programme had been scoped to cover the physical and chemical properties of the constituent samples. In addition, a mineralogical study using x-ray diffraction (XRD) was performed on the collected bentonite and the mixed bentonite with PG-NaCl mixture samples. The obtained results of this study showed significant improvement in the swelling performance of the tested samples with the increase of the proposed PG-NaCl mixture content. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=expansive%20soils" title="expansive soils">expansive soils</a>, <a href="https://publications.waset.org/abstracts/search?q=industrial%20waste" title=" industrial waste"> industrial waste</a>, <a href="https://publications.waset.org/abstracts/search?q=mineralogical%20study" title=" mineralogical study"> mineralogical study</a>, <a href="https://publications.waset.org/abstracts/search?q=swelling%20performance" title=" swelling performance"> swelling performance</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction" title=" X-ray diffraction"> X-ray diffraction</a> </p> <a href="https://publications.waset.org/abstracts/60475/improving-swelling-performance-using-industrial-waste-products" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60475.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">270</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Modified Model for UV-Laser Corneal Ablation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salah%20Hassab%20Elnaby">Salah Hassab Elnaby</a>, <a href="https://publications.waset.org/abstracts/search?q=Omnia%20Hamdy"> Omnia Hamdy</a>, <a href="https://publications.waset.org/abstracts/search?q=Aziza%20Ahmed%20Hassan"> Aziza Ahmed Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Abdelkawi"> Salwa Abdelkawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Abdelhalim"> Ibrahim Abdelhalim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Laser corneal reshaping has been proposed as a successful treatment of many refraction disorders. However, some physical and chemical demonstrations of the laser effect upon interaction with the corneal tissue are still not fully explained. Therefore, different computational and mathematical models have been implemented to predict the depth of the ablated channel and calculate the ablation threshold and the local temperature rise. In the current paper, we present a modified model that aims to answer some of the open questions about the ablation threshold, the ablation rate, and the physical and chemical mechanisms of that action. The proposed model consists of three parts. The first part deals with possible photochemical reactions between the incident photons and various components of the cornea (collagen, water, etc.). Such photochemical reactions may end by photo-ablation or just the electronic excitation of molecules. Then a chemical reaction is responsible for the ablation threshold. Finally, another chemical reaction produces fragments that can be cleared out. The model takes into account all processes at the same time with different probabilities. Moreover, the effect of applying different laser wavelengths that have been studied before, namely the common excimer laser (193-nm) and the solid state lasers (213-nm & 266-nm), has been investigated. Despite the success and ubiquity of the ArF laser, the presented results reveal that a carefully designed 213-nm laser gives the same results with lower operational drawbacks. Moreover, the use of mode locked laser could also decrease the risk of heat generation and diffusion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=UV%20lasers" title="UV lasers">UV lasers</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20model" title=" mathematical model"> mathematical model</a>, <a href="https://publications.waset.org/abstracts/search?q=corneal%20ablation" title=" corneal ablation"> corneal ablation</a>, <a href="https://publications.waset.org/abstracts/search?q=photochemical%20ablation" title=" photochemical ablation"> photochemical ablation</a> </p> <a href="https://publications.waset.org/abstracts/160661/modified-model-for-uv-laser-corneal-ablation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/160661.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">88</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Portfolio Management for Construction Company during Covid-19 Using AHP Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sareh%20Rajabi">Sareh Rajabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Bheiry"> Salwa Bheiry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In general, Covid-19 created many financial and non-financial damages to the economy and community. Level and severity of covid-19 as pandemic case varies over the region and due to different types of the projects. Covid-19 virus emerged as one of the most imperative risk management factors word-wide recently. Therefore, as part of portfolio management assessment, it is essential to evaluate severity of such risk on the project and program in portfolio management level to avoid any risky portfolio. Covid-19 appeared very effectively in South America, part of Europe and Middle East. Such pandemic infection affected the whole universe, due to lock down, interruption in supply chain management, health and safety requirements, transportations and commercial impacts. Therefore, this research proposes Analytical Hierarchy Process (AHP) to analyze and assess such pandemic case like Covid-19 and its impacts on the construction projects. The AHP technique uses four sub-criteria: Health and safety, commercial risk, completion risk and contractual risk to evaluate the project and program. The result will provide the decision makers with information which project has higher or lower risk in case of Covid-19 and pandemic scenario. Therefore, the decision makers can have most feasible solution based on effective weighted criteria for project selection within their portfolio to match with the organization’s strategies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=portfolio%20management" title="portfolio management">portfolio management</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20management" title=" risk management"> risk management</a>, <a href="https://publications.waset.org/abstracts/search?q=COVID-19" title=" COVID-19"> COVID-19</a>, <a href="https://publications.waset.org/abstracts/search?q=analytical%20hierarchy%20process%20technique" title=" analytical hierarchy process technique"> analytical hierarchy process technique</a> </p> <a href="https://publications.waset.org/abstracts/130424/portfolio-management-for-construction-company-during-covid-19-using-ahp-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130424.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">109</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Pregnancy Rhinitis Prevalence among Saudi Women</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20G.%20Alotaibi">Mohammed G. Alotaibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sameer%20Albahkaly"> Sameer Albahkaly</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20M.%20Bahkali"> Salwa M. Bahkali</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20M.%20Alghamdi"> Abdullah M. Alghamdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Raseel%20S.%20Alswidan"> Raseel S. Alswidan</a>, <a href="https://publications.waset.org/abstracts/search?q=Maha%20Bin%20Shafi"> Maha Bin Shafi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarah%20Almaiman"> Sarah Almaiman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Rhinitis is common in Saudi Arabia. Therefore, our study was designed to evaluate the prevalence, triggering factors, severity and progression of rhinitis during pregnancy. Methods: Prospective cross-sectional study was conducted in eight governmental and private medical centers in Riyadh, Saudi Arabia, during June and July 2014. Validated Arabic language self-administered questionnaire was used. Sample size of 260 Saudi pregnant women was calculated by Raosoft sample size calculator. Random sampling was achieved by choosing one and skipping every five patients in the clinic list. Data were coded and entered manually into spreadsheets then transferred to SPSS statistical package version 16.0 for Windows. Consent, Privacy and confidentiality of information were assured. Results: Pregnancy rhinitis was reported 31.2% (CI 25.6 - 37.2%). Symptoms arising in first trimester appeared in 79.2% of PR cases and mostly worsen. The most prevalent symptoms were nasal pruritis (67.5%), followed by sneezing (57.1%), congestion (50.6%), and post nasal drip (46.7%). The major triggering factor was dust (71.4%), followed by Tobacco/Shisha smoke (57.6%) and perfume(47%). Preexisting allergic diseases were markedly associated with developing pregnancy rhinitis. Conclusion: Rhinitis during pregnancy manifested in one third of Saudi pregnant ladies. Nasal pruritus was the most common symptom and dust was the widespread triggering factor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=allergy" title="allergy">allergy</a>, <a href="https://publications.waset.org/abstracts/search?q=pregnancy" title=" pregnancy"> pregnancy</a>, <a href="https://publications.waset.org/abstracts/search?q=Rhinitis" title=" Rhinitis"> Rhinitis</a>, <a href="https://publications.waset.org/abstracts/search?q=sneezing" title=" sneezing"> sneezing</a> </p> <a href="https://publications.waset.org/abstracts/56954/pregnancy-rhinitis-prevalence-among-saudi-women" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56954.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">251</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Factors Associated with Mammography Screening Behaviors: A Cross-Sectional Descriptive Study of Egyptian Women </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20Hagag%20Abdelaziz">Salwa Hagag Abdelaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Naglaa%20Fathy%20Youssef"> Naglaa Fathy Youssef</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Abdellatif%20Hassan"> Nadia Abdellatif Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Wesam%20Abdelrahman"> Rasha Wesam Abdelrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Breast cancer is considered as a substantial health concern and practicing mammography screening [MS] is important in minimizing its related morbidity. So it is essential to have a better understanding of breast cancer screening behaviors of women and factors that influence utilization of them. The aim of this study is to identify the factors that are linked to MS behaviors among the Egyptian women. A cross-sectional descriptive design was carried out to provide a snapshot of the factors that are linked to MS behaviors. A convenience sample of 311 women was utilized and all eligible participants admitted to the Women Imaging Unit who are 40 years of age or above, coming for mammography assessment, not pregnant or breast feeding and who accepted to participate in the study were included. A structured questionnaire was developed by the researchers and contains three parts; Socio-demographic data; Motivating factors associated with MS; and association between MS and model of behavior change. The analyzed data indicated that most of the participated women (66.6 %) belonged to the age group of 40-49.A high proportion of participants (58.1%) of group having previous MS influenced by their neighbors to practice MS, whereas 32.7 % in group not having previous MS were influenced by family members which indicated significant differences (P <0.05). Doctors and media are shown to be the least influence of others to practice MS. Women with intention to have a future mammogram had higher OR (1.404) for practicing MS compared with women with no intention. Further studies are needed to examine the relation between Trans-theoretical Model [TTM] and practicing MS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breast%20cancer" title="breast cancer">breast cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=mammography" title=" mammography"> mammography</a>, <a href="https://publications.waset.org/abstracts/search?q=screening%20behaviors" title=" screening behaviors"> screening behaviors</a>, <a href="https://publications.waset.org/abstracts/search?q=morbidity" title=" morbidity"> morbidity</a> </p> <a href="https://publications.waset.org/abstracts/28433/factors-associated-with-mammography-screening-behaviors-a-cross-sectional-descriptive-study-of-egyptian-women" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28433.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">442</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Green approach of Anticorrosion Coating of Steel Based on Polybenzoxazine/Henna Nanocomposites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salwa%20M.%20Elmesallamy">Salwa M. Elmesallamy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20A.%20Farag"> Ahmed A. Farag</a>, <a href="https://publications.waset.org/abstracts/search?q=Magd%20M.%20Badr"> Magd M. Badr</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalia%20S.%20Fathy"> Dalia S. Fathy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Bakry"> Ahmed Bakry</a>, <a href="https://publications.waset.org/abstracts/search?q=Mona%20A.%20El-Etre"> Mona A. El-Etre</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The term green environment is an international trend. It is become imperative to treat the corrosion of steel with a green coating to protect the environment. From the potential adverse effects of the traditional materials.A series of polybenzoxazine/henna composites (PBZ/henna), with different weight percent (3,5, and 7 wt % (of henna), were prepared for corrosion protection of carbon steel. The structures of the prepared composites were verified using FTIR analysis. The mechanical properties of the resins, such as adhesion, hardness, binding, and tensile strength, were also measured. It was found that the tensile strength increases by henna loading up to 25% higher than the tidy resin. The thermal stability was investigated by thermogravimetric analysis (TGA) the loading of lawsone (henna) molecules into the PBZ matrix increases the thermal stability of the composite. UV stability was tested by the UV weathering accelerator to examine the possibility that henna can also act as an aging UV stabilizer. The effect of henna content on the corrosion resistance of composite coatings was tested using potentiostatic polarization and electrochemical spectroscopy. The presence of henna in the coating matrix enhances the protection efficiency of polybenzoxazine coats. Increasing henna concentration increases the protection efficiency of composites. The quantum chemical calculations for polybenzoxazine/henna composites have resulted that the highest corrosion inhibition efficiency, has the highest EHOMO and lowest ELUMO; which is in good agreement with results obtained from experiments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polybenzoxazine" title="polybenzoxazine">polybenzoxazine</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20chemistry" title=" green chemistry"> green chemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20steel" title=" carbon steel"> carbon steel</a> </p> <a href="https://publications.waset.org/abstracts/158631/green-approach-of-anticorrosion-coating-of-steel-based-on-polybenzoxazinehenna-nanocomposites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158631.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">95</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Statistical Feature Extraction Method for Wood Species Recognition System </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Iz%27aan%20Paiz%20Bin%20Zamri">Mohd Iz'aan Paiz Bin Zamri</a>, <a href="https://publications.waset.org/abstracts/search?q=Anis%20Salwa%20Mohd%20Khairuddin"> Anis Salwa Mohd Khairuddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Norrima%20Mokhtar"> Norrima Mokhtar</a>, <a href="https://publications.waset.org/abstracts/search?q=Rubiyah%20Yusof"> Rubiyah Yusof</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Effective statistical feature extraction and classification are important in image-based automatic inspection and analysis. An automatic wood species recognition system is designed to perform wood inspection at custom checkpoints to avoid mislabeling of timber which will results to loss of income to the timber industry. The system focuses on analyzing the statistical pores properties of the wood images. This paper proposed a fuzzy-based feature extractor which mimics the experts’ knowledge on wood texture to extract the properties of pores distribution from the wood surface texture. The proposed feature extractor consists of two steps namely pores extraction and fuzzy pores management. The total number of statistical features extracted from each wood image is 38 features. Then, a backpropagation neural network is used to classify the wood species based on the statistical features. A comprehensive set of experiments on a database composed of 5200 macroscopic images from 52 tropical wood species was used to evaluate the performance of the proposed feature extractor. The advantage of the proposed feature extraction technique is that it mimics the experts’ interpretation on wood texture which allows human involvement when analyzing the wood texture. Experimental results show the efficiency of the proposed method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=classification" title="classification">classification</a>, <a href="https://publications.waset.org/abstracts/search?q=feature%20extraction" title=" feature extraction"> feature extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy" title=" fuzzy"> fuzzy</a>, <a href="https://publications.waset.org/abstracts/search?q=inspection%20system" title=" inspection system"> inspection system</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20analysis" title=" image analysis"> image analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=macroscopic%20images" title=" macroscopic images"> macroscopic images</a> </p> <a href="https://publications.waset.org/abstracts/36415/statistical-feature-extraction-method-for-wood-species-recognition-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36415.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">425</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Salwa%20Khefacha&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Salwa%20Khefacha&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a 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