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authenticating</title> <meta name="description" content="Search results for: authenticating"> <meta name="keywords" content="authenticating"> <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 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action="https://publications.waset.org/abstracts/search"> <div 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="authenticating"> <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> 12</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: authenticating</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> Network Security Attacks and Defences</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ranbir%20Singh">Ranbir Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Deepinder%20Kaur"> Deepinder Kaur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Network security is an important aspect in every field like government offices, Educational Institute and any business organization. Network security consists of the policies adopted to prevent and monitor forbidden access, misuse, modification, or denial of a computer network. Network security is very complicated subject and deal by only well trained and experienced people. However, as more and more people become wired, an increasing number of people need to understand the basics of security in a networked world. The history of the network security included an introduction to the TCP/IP and interworking. Network security starts with authenticating, commonly with a username and a password. In this paper, we study about various types of attacks on network security and how to handle or prevent this attack. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=network%20security" title="network security">network security</a>, <a href="https://publications.waset.org/abstracts/search?q=attacks" title=" attacks"> attacks</a>, <a href="https://publications.waset.org/abstracts/search?q=denial" title=" denial"> denial</a>, <a href="https://publications.waset.org/abstracts/search?q=authenticating" title=" authenticating"> authenticating</a> </p> <a href="https://publications.waset.org/abstracts/53007/network-security-attacks-and-defences" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53007.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">404</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">11</span> Message Authentication Scheme for Vehicular Ad-Hoc Networks under Sparse RSUs Environment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wen%20Shyong%20Hsieh">Wen Shyong Hsieh</a>, <a href="https://publications.waset.org/abstracts/search?q=Chih%20Hsueh%20Lin"> Chih Hsueh Lin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we combine the concepts of chameleon hash function (CHF) and identification based cryptography (IBC) to build a message authentication environment for VANET under sparse RSUs. Based on the CHF, TA keeps two common secrets that will be embedded to all identities to be as the evidence of mutual trusting. TA will issue one original identity to every RSU and vehicle. An identity contains one public ID and one private key. The public ID, includes three components: pseudonym, random key, and public key, is used to present one entity and can be verified to be a legal one. The private key is used to claim the ownership of the public ID. Based on the concept of IBC, without any negotiating process, a CHF pairing key multiplied by one private key and other’s public key will be used for mutually trusting and to be utilized as the session key of secure communicating between RSUs and vehicles. To help the vehicles to do message authenticating, the RSUs are assigned to response the vehicle’s temple identity request using two short time secretes that are broadcasted by TA. To light the loading of request information, one day is divided into M time slots. At every time slot, TA will broadcast two short time secretes to all valid RSUs for that time slot. Any RSU can response the temple identity request from legal vehicles. With the collected announcement of public IDs from the neighbor vehicles, a vehicle can set up its neighboring set, which includes the information about the neighbor vehicle’s temple public ID and temple CHF pairing key that can be derived by the private key and neighbor’s public key and will be used to do message authenticating or secure communicating without the help of RSU. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Internet%20of%20Vehicles%20%28IOV%29" title="Internet of Vehicles (IOV)">Internet of Vehicles (IOV)</a>, <a href="https://publications.waset.org/abstracts/search?q=Vehicular%20Ad-hoc%20Networks%20%28VANETs%29" title=" Vehicular Ad-hoc Networks (VANETs)"> Vehicular Ad-hoc Networks (VANETs)</a>, <a href="https://publications.waset.org/abstracts/search?q=Chameleon%20Hash%20Function%20%28CHF%29" title=" Chameleon Hash Function (CHF)"> Chameleon Hash Function (CHF)</a>, <a href="https://publications.waset.org/abstracts/search?q=message%20authentication" title=" message authentication"> message authentication</a> </p> <a href="https://publications.waset.org/abstracts/58528/message-authentication-scheme-for-vehicular-ad-hoc-networks-under-sparse-rsus-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58528.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">391</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">10</span> A Method and System for Secure Authentication Using One Time QR Code</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Divyans%20Mahansaria">Divyans Mahansaria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> User authentication is an important security measure for protecting confidential data and systems. However, the vulnerability while authenticating into a system has significantly increased. Thus, necessary mechanisms must be deployed during the process of authenticating a user to safeguard him/her from the vulnerable attacks. The proposed solution implements a novel authentication mechanism to counter various forms of security breach attacks including phishing, Trojan horse, replay, key logging, Asterisk logging, shoulder surfing, brute force search and others. QR code (Quick Response Code) is a type of matrix barcode or two-dimensional barcode that can be used for storing URLs, text, images and other information. In the proposed solution, during each new authentication request, a QR code is dynamically generated and presented to the user. A piece of generic information is mapped to plurality of elements and stored within the QR code. The mapping of generic information with plurality of elements, randomizes in each new login, and thus the QR code generated for each new authentication request is for one-time use only. In order to authenticate into the system, the user needs to decode the QR code using any QR code decoding software. The QR code decoding software needs to be installed on handheld mobile devices such as smartphones, personal digital assistant (PDA), etc. On decoding the QR code, the user will be presented a mapping between the generic piece of information and plurality of elements using which the user needs to derive cipher secret information corresponding to his/her actual password. Now, in place of the actual password, the user will use this cipher secret information to authenticate into the system. The authentication terminal will receive the cipher secret information and use a validation engine that will decipher the cipher secret information. If the entered secret information is correct, the user will be provided access to the system. Usability study has been carried out on the proposed solution, and the new authentication mechanism was found to be easy to learn and adapt. Mathematical analysis of the time taken to carry out brute force attack on the proposed solution has been carried out. The result of mathematical analysis showed that the solution is almost completely resistant to brute force attack. Today’s standard methods for authentication are subject to a wide variety of software, hardware, and human attacks. The proposed scheme can be very useful in controlling the various types of authentication related attacks especially in a networked computer environment where the use of username and password for authentication is common. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=authentication" title="authentication">authentication</a>, <a href="https://publications.waset.org/abstracts/search?q=QR%20code" title=" QR code"> QR code</a>, <a href="https://publications.waset.org/abstracts/search?q=cipher%20%2F%20decipher%20text" title=" cipher / decipher text"> cipher / decipher text</a>, <a href="https://publications.waset.org/abstracts/search?q=one%20time%20password" title=" one time password"> one time password</a>, <a href="https://publications.waset.org/abstracts/search?q=secret%20information" title=" secret information "> secret information </a> </p> <a href="https://publications.waset.org/abstracts/71171/a-method-and-system-for-secure-authentication-using-one-time-qr-code" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71171.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">268</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">9</span> Multimodal Biometric Cryptography Based Authentication in Cloud Environment to Enhance Information Security</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20Pugazhenthi">D. Pugazhenthi</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Sree%20Vidya"> B. Sree Vidya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cloud computing is one of the emerging technologies that enables end users to use the services of cloud on ‘pay per usage’ strategy. This technology grows in a fast pace and so is its security threat. One among the various services provided by cloud is storage. In this service, security plays a vital factor for both authenticating legitimate users and protection of information. This paper brings in efficient ways of authenticating users as well as securing information on the cloud. Initial phase proposed in this paper deals with an authentication technique using multi-factor and multi-dimensional authentication system with multi-level security. Unique identification and slow intrusive formulates an advanced reliability on user-behaviour based biometrics than conventional means of password authentication. By biometric systems, the accounts are accessed only by a legitimate user and not by a nonentity. The biometric templates employed here do not include single trait but multiple, viz., iris and finger prints. The coordinating stage of the authentication system functions on Ensemble Support Vector Machine (SVM) and optimization by assembling weights of base SVMs for SVM ensemble after individual SVM of ensemble is trained by the Artificial Fish Swarm Algorithm (AFSA). Thus it helps in generating a user-specific secure cryptographic key of the multimodal biometric template by fusion process. Data security problem is averted and enhanced security architecture is proposed using encryption and decryption system with double key cryptography based on Fuzzy Neural Network (FNN) for data storing and retrieval in cloud computing . The proposing scheme aims to protect the records from hackers by arresting the breaking of cipher text to original text. This improves the authentication performance that the proposed double cryptographic key scheme is capable of providing better user authentication and better security which distinguish between the genuine and fake users. Thus, there are three important modules in this proposed work such as 1) Feature extraction, 2) Multimodal biometric template generation and 3) Cryptographic key generation. The extraction of the feature and texture properties from the respective fingerprint and iris images has been done initially. Finally, with the help of fuzzy neural network and symmetric cryptography algorithm, the technique of double key encryption technique has been developed. As the proposed approach is based on neural networks, it has the advantage of not being decrypted by the hacker even though the data were hacked already. The results prove that authentication process is optimal and stored information is secured. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20fish%20swarm%20algorithm%20%28AFSA%29" title="artificial fish swarm algorithm (AFSA)">artificial fish swarm algorithm (AFSA)</a>, <a href="https://publications.waset.org/abstracts/search?q=biometric%20authentication" title=" biometric authentication"> biometric authentication</a>, <a href="https://publications.waset.org/abstracts/search?q=decryption" title=" decryption"> decryption</a>, <a href="https://publications.waset.org/abstracts/search?q=encryption" title=" encryption"> encryption</a>, <a href="https://publications.waset.org/abstracts/search?q=fingerprint" title=" fingerprint"> fingerprint</a>, <a href="https://publications.waset.org/abstracts/search?q=fusion" title=" fusion"> fusion</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20neural%20network%20%28FNN%29" title=" fuzzy neural network (FNN)"> fuzzy neural network (FNN)</a>, <a href="https://publications.waset.org/abstracts/search?q=iris" title=" iris"> iris</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-modal" title=" multi-modal"> multi-modal</a>, <a href="https://publications.waset.org/abstracts/search?q=support%20vector%20machine%20classification" title=" support vector machine classification"> support vector machine classification</a> </p> <a href="https://publications.waset.org/abstracts/35625/multimodal-biometric-cryptography-based-authentication-in-cloud-environment-to-enhance-information-security" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35625.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">259</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">8</span> Tag Impersonation Attack on Ultra-lightweight Radio Frequency Identification Authentication Scheme (ESRAS)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reham%20Al-Zahrani">Reham Al-Zahrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Noura%20Aleisa"> Noura Aleisa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The proliferation of Radio Frequency Identification (RFID) technology has raised concerns about system security, particularly regarding tag impersonation attacks. Regarding RFID systems, an appropriate authentication protocol must resist active and passive attacks. A tag impersonation occurs when an adversary's tag is used to fool an authenticating reader into believing it is a legitimate tag. This paper analyzed the security of the efficient, secure, and practical ultra-lightweight RFID Authentication Scheme (ESRAS). Then, the paper presents a comprehensive analysis of the Efficient, Secure, and Practical Ultra-Lightweight RFID Authentication Scheme (ESRAS) in the context of radio frequency identification (RFID) systems that employed the Scyther tool to examine the protocol's security against a tag impersonation attack. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RFID" title="RFID">RFID</a>, <a href="https://publications.waset.org/abstracts/search?q=impersonation%20attack" title=" impersonation attack"> impersonation attack</a>, <a href="https://publications.waset.org/abstracts/search?q=authentication" title=" authentication"> authentication</a>, <a href="https://publications.waset.org/abstracts/search?q=ultra-lightweight%20protocols" title=" ultra-lightweight protocols"> ultra-lightweight protocols</a> </p> <a href="https://publications.waset.org/abstracts/183098/tag-impersonation-attack-on-ultra-lightweight-radio-frequency-identification-authentication-scheme-esras" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183098.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">65</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">7</span> Risk Tolerance and Individual Worthiness Based on Simultaneous Analysis of the Cognitive Performance and Emotional Response to a Multivariate Situational Risk Assessment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Frederic%20Jumelle">Frederic Jumelle</a>, <a href="https://publications.waset.org/abstracts/search?q=Kelvin%20So"> Kelvin So</a>, <a href="https://publications.waset.org/abstracts/search?q=Didan%20Deng"> Didan Deng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A method and system for neuropsychological performance test, comprising a mobile terminal, used to interact with a cloud server which stores user information and is logged into by the user through the terminal device; the user information is directly accessed through the terminal device and is processed by artificial neural network, and the user information comprises user facial emotions information, performance test answers information and user chronometrics. This assessment is used to evaluate the cognitive performance and emotional response of the subject to a series of dichotomous questions describing various situations of daily life and challenging the users' knowledge, values, ethics, and principles. In industrial applications, the timing of this assessment will depend on the users' need to obtain a service from a provider, such as opening a bank account, getting a mortgage or an insurance policy, authenticating clearance at work, or securing online payments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title="artificial intelligence">artificial intelligence</a>, <a href="https://publications.waset.org/abstracts/search?q=neurofinance" title=" neurofinance"> neurofinance</a>, <a href="https://publications.waset.org/abstracts/search?q=neuropsychology" title=" neuropsychology"> neuropsychology</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20management" title=" risk management"> risk management</a> </p> <a href="https://publications.waset.org/abstracts/128690/risk-tolerance-and-individual-worthiness-based-on-simultaneous-analysis-of-the-cognitive-performance-and-emotional-response-to-a-multivariate-situational-risk-assessment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128690.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">138</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">6</span> Development of DNA Fingerprints in Selected Medicinal Plants of India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20Verma">V. Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Hazi%20Raja"> Hazi Raja</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Conventionally, morphological descriptors are routinely used for establishing the identity of varieties. But these morphological descriptors suffer from many drawbacks such as influence of environment on trait expression, epistatic interactions, pleiotrophic effects etc. Furthermore, the paucity of a sufficient number of these descriptors for unequivocal identification of increasing number of reference collection varieties enforces to look for alternatives. Therefore, DNA based finger-print based techniques were selected to define the systematic position of the selected medicinal plants like Plumbago zeylanica, Desmodium gangeticum, Uraria picta. DNA fingerprinting of herbal plants can be useful in authenticating the various claims of medical uses related to the plants, in germplasm characterization and conservation. In plants it has not only helped in identifying species but also in defining a new realm in plant genomics, plant breeding and in conserving the biodiversity. With world paving way for developments in biotechnology, DNA fingerprinting promises a very powerful tool in our future endeavors. Data will be presented on the development of microsatellite markers (SSR) used to fingerprint, characterize, and assess genetic diversity among 12 accessions of both Plumbago zeylanica, 4 accessions of Desmodium gengaticum, 4 accessions of Uraria Picta. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Plumbago%20zeylanica" title="Plumbago zeylanica">Plumbago zeylanica</a>, <a href="https://publications.waset.org/abstracts/search?q=Desmodium%20gangeticum" title=" Desmodium gangeticum"> Desmodium gangeticum</a>, <a href="https://publications.waset.org/abstracts/search?q=Uraria%20picta" title=" Uraria picta"> Uraria picta</a>, <a href="https://publications.waset.org/abstracts/search?q=microsaetllite%20markers" title=" microsaetllite markers"> microsaetllite markers</a> </p> <a href="https://publications.waset.org/abstracts/46572/development-of-dna-fingerprints-in-selected-medicinal-plants-of-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46572.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">216</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">5</span> Offline Signature Verification Using Minutiae and Curvature Orientation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Nagaty">Khaled Nagaty</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Nagaty"> Heba Nagaty</a>, <a href="https://publications.waset.org/abstracts/search?q=Gerard%20McKee"> Gerard McKee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A signature is a behavioral biometric that is used for authenticating users in most financial and legal transactions. Signatures can be easily forged by skilled forgers. Therefore, it is essential to verify whether a signature is genuine or forged. The aim of any signature verification algorithm is to accommodate the differences between signatures of the same person and increase the ability to discriminate between signatures of different persons. This work presented in this paper proposes an automatic signature verification system to indicate whether a signature is genuine or not. The system comprises four phases: (1) The pre-processing phase in which image scaling, binarization, image rotation, dilation, thinning, and connecting ridge breaks are applied. (2) The feature extraction phase in which global and local features are extracted. The local features are minutiae points, curvature orientation, and curve plateau. The global features are signature area, signature aspect ratio, and Hu moments. (3) The post-processing phase, in which false minutiae are removed. (4) The classification phase in which features are enhanced before feeding it into the classifier. k-nearest neighbors and support vector machines are used. The classifier was trained on a benchmark dataset to compare the performance of the proposed offline signature verification system against the state-of-the-art. The accuracy of the proposed system is 92.3%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=signature" title="signature">signature</a>, <a href="https://publications.waset.org/abstracts/search?q=ridge%20breaks" title=" ridge breaks"> ridge breaks</a>, <a href="https://publications.waset.org/abstracts/search?q=minutiae" title=" minutiae"> minutiae</a>, <a href="https://publications.waset.org/abstracts/search?q=orientation" title=" orientation"> orientation</a> </p> <a href="https://publications.waset.org/abstracts/132885/offline-signature-verification-using-minutiae-and-curvature-orientation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/132885.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">146</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">4</span> Isotopes Used in Comparing Indigenous and International Walnut (Juglans regia L.) Varieties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raluca%20Popescu">Raluca Popescu</a>, <a href="https://publications.waset.org/abstracts/search?q=Diana%20Costinel"> Diana Costinel</a>, <a href="https://publications.waset.org/abstracts/search?q=Elisabeta-Irina%20Geana"> Elisabeta-Irina Geana</a>, <a href="https://publications.waset.org/abstracts/search?q=Oana-Romina%20Botoran"> Oana-Romina Botoran</a>, <a href="https://publications.waset.org/abstracts/search?q=Roxana-Elena%20Ionete"> Roxana-Elena Ionete</a>, <a href="https://publications.waset.org/abstracts/search?q=Yazan%20Falah%20Jadee%20%27Alabedallat"> Yazan Falah Jadee 'Alabedallat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mihai%20Botu"> Mihai Botu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Walnut production is high in Romania, different varieties being cultivated dependent on high yield, disease resistance or quality of produce. Walnuts have a highly nutritional composition, the kernels containing essential fatty acids, where the unsaturated fraction is higher than in other types of nuts, quinones, tannins, minerals. Walnut consumption can lower the cholesterol, improve the arterial function and reduce inflammation. The purpose of this study is to determine and compare the composition of walnuts of indigenous and international varieties all grown in Romania, in order to identify high-quality indigenous varieties. Oil has been extracted from the nuts of 34 varieties, the fatty acids composition and IV (iodine value) being afterwards measured by NMR. Furthermore, δ13C of the extracted oil had been measured by IRMS to find specific isotopic fingerprints that can be used in authenticating the varieties. Chemometrics had been applied to the data in order to identify similarities and differences between the varieties. The total saturated fatty acids content (SFA) varied between n.d. and 23% molar, oleic acid between 17 and 35%, linoleic acid between 38 and 59%, linolenic acid between 8 and 14%, corresponding to iodine values (IV - total amount of unsaturation) ranging from 100 to 135. The varieties separated in four groups according to the fatty acids composition, each group containing an international variety, making possible the classification of the indigenous ones. At both ends of the unsaturation spectrum, international varieties had been found. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=%CE%B413C-IRMS" title="δ13C-IRMS">δ13C-IRMS</a>, <a href="https://publications.waset.org/abstracts/search?q=fatty%20acids%20composition" title=" fatty acids composition"> fatty acids composition</a>, <a href="https://publications.waset.org/abstracts/search?q=1H-NMR" title=" 1H-NMR"> 1H-NMR</a>, <a href="https://publications.waset.org/abstracts/search?q=walnut%20varieties" title=" walnut varieties"> walnut varieties</a> </p> <a href="https://publications.waset.org/abstracts/60143/isotopes-used-in-comparing-indigenous-and-international-walnut-juglans-regia-l-varieties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60143.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">315</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">3</span> Nucleotide Based Validation of the Endangered Plant Diospyros mespiliformis (Ebenaceae) by Evaluating Short Sequence Region of Plastid rbcL Gene</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20Alaklabi">Abdullah Alaklabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20A.%20Arif"> Ibrahim A. Arif</a>, <a href="https://publications.waset.org/abstracts/search?q=Sameera%20O.%20Bafeel"> Sameera O. Bafeel</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20H.%20Alfarhan"> Ahmad H. Alfarhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Anis%20Ahamed"> Anis Ahamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Jacob%20Thomas"> Jacob Thomas</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20A.%20Bakir"> Mohammad A. Bakir </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diospyros mespiliformis (Hochst. ex A.DC.; Ebenaceae) is a large deciduous medicinal plant. This plant species is currently listed as endangered in Saudi Arabia. Molecular identification of this plant species based on short sequence regions (571 and 664 bp) of plastid rbcL (ribulose-1, 5-biphosphate carboxylase) gene was investigated in this study. The endangered plant specimens were collected from Al-Baha, Saudi Arabia (GPS coordinate: 19.8543987, 41.3059349). Phylogenetic tree inferred from the rbcL gene sequences showed that this species is very closely related with D. brandisiana. The close relationship was also observed among D. bejaudii, D. Philippinensis and D. releyi (≥99.7% sequence homology). The partial rbcL gene sequence region (571 bp) that was amplified by rbcL primer-pair rbcLaF-rbcLaR failed to discriminate D. mespiliformis from the closely related plant species, D. brandisiana. In contrast, primer-pair rbcL1F-rbcL724R yielded longer amplicon, discriminated the species from D. brandisiana and demonstrated nucleotide variations in 3 different sites (645G>T; 663A>C; 710C>G). Although D. mespiliformis (EU980712) and D. brandisiana (EU980656) are very closely related species (99.4%); however, studied specimen showed 100% sequence homology with D. mespiliformis and 99.6% with D. brandisiana. The present findings showed that rbcL short sequence region (664 bp) of plastid rbcL gene, amplified by primer-pair rbcL1F-rbcL724R, can be used for authenticating samples of D. mespiliforformis and may provide help in authentic identification and management process of this medicinally valuable endangered plant species. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Diospyros%20mespiliformis" title="Diospyros mespiliformis">Diospyros mespiliformis</a>, <a href="https://publications.waset.org/abstracts/search?q=endangered%20plant" title=" endangered plant"> endangered plant</a>, <a href="https://publications.waset.org/abstracts/search?q=identification%20partial%20rbcL" title=" identification partial rbcL"> identification partial rbcL</a> </p> <a href="https://publications.waset.org/abstracts/15990/nucleotide-based-validation-of-the-endangered-plant-diospyros-mespiliformis-ebenaceae-by-evaluating-short-sequence-region-of-plastid-rbcl-gene" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15990.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">432</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">2</span> Infrared Spectroscopy Fingerprinting of Herbal Products- Application of the Hypericum perforatum L. Supplements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elena%20Iacob">Elena Iacob</a>, <a href="https://publications.waset.org/abstracts/search?q=Marie-Louise%20Ionescu"> Marie-Louise Ionescu</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20Ionescu"> Elena Ionescu</a>, <a href="https://publications.waset.org/abstracts/search?q=Carmen%20Elena%20Tebrencu"> Carmen Elena Tebrencu</a>, <a href="https://publications.waset.org/abstracts/search?q=Oana%20Teodora%20Ciuperca"> Oana Teodora Ciuperca</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Infrared spectroscopy (FT-IR) is an advanced technique frequently used to authenticate both raw materials and final products using their specific fingerprints and to determine plant extracts biomarkers based on their functional groups. In recent years the market for Hypericum has grown rapidly and also has grown the cases of adultery/replacement, especially for Hypericum perforatum L.specie. Presence/absence of same biomarkers provides preliminary identification of Hypericum species in safe use in the manufacture of food supplements. The main objective of the work was to characterize the main biomarkers of Hypericum perforatum L. (St. John's wort) and identify this species in herbal food supplements after specific FT-IR fingerprint. An experimental program has been designed in order to test: (1) raw material (St. John's wort); (2)intermediate raw materials (St. John's wort dry extract ); (3) the finished products: tablets based on powders, on extracts, on powder and extract, hydroalcoholic solution from herbal mixture based on St. John's wort. The analyze using FTIR infrared spectroscopy were obtained raw materials, intermediates and finished products spectra, respectively absorption bands corresponding and similar with aliphatic and aromatic structures; examination was done individually and through comparison between Hypericum perforatum L. plant species and finished product The tests were done in correlation with phytochemical markers for authenticating the specie Hypericum perforatum L.: hyperoside, rutin, quercetin, isoquercetin, luteolin, apigenin, hypericin, hyperforin, chlorogenic acid. Samples were analyzed using a Shimatzu FTIR spectrometer and the infrared spectrum of each sample was recorded in the MIR region, from 4000 to 1000 cm-1 and then the fingerprint region was selected for data analysis. The following functional groups were identified -stretching vibrations suggests existing groups in the compounds of interest (flavones–rutin, hyperoside, polyphenolcarboxilic acids - chlorogenic acid, naphtodianthrones- hypericin): oxidril groups (OH) free alcohol type: rutin, hyperoside, chlorogenic acid; C = O bond from structures with free carbonyl groups of aldehyde, ketone, carboxylic, ester: hypericin; C = O structure with the free carbonyl of the aldehyde groups, ketone, carboxylic acid, esteric/C = O free bonds present in chlorogenic acid; C = C bonds of the aromatic ring (condensed aromatic hydrocarbons, heterocyclic compounds) present in all compounds of interest; OH phenolic groups: present in all compounds of interest, C-O-C groups from glycoside structures: rutin, hyperoside, chlorogenic acid. The experimental results show that: (I)The six fingerprint region analysis indicated the presence of specific functional groups: (1) 1000 - 1130 cm-1 (C-O–C of glycoside structures); (2) 1200-1380 cm-1 (carbonyl C-O or O-H phenolic); (3) 1400-1450 cm-1 (C=C aromatic); (4) 1600- 1730 cm-1 (C=O carbonyl); (5) 2850 - 2930 cm-1 (–CH3, -CH2-, =CH-); (6) 338-3920 cm-1 (OH free alcohol type); (II)Comparative FT-IR spectral analysis indicate the authenticity of the finished products ( tablets) in terms of Hypericum perforatum L. content; (III)The infrared spectroscopy is an adequate technique for identification and authentication of the medicinal herbs , intermediate raw material and in the food supplements less in the form of solutions where the results are not conclusive. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Authentication" title="Authentication">Authentication</a>, <a href="https://publications.waset.org/abstracts/search?q=FT-IR%20fingerprint" title=" FT-IR fingerprint"> FT-IR fingerprint</a>, <a href="https://publications.waset.org/abstracts/search?q=Herbal%20supplements" title=" Herbal supplements"> Herbal supplements</a>, <a href="https://publications.waset.org/abstracts/search?q=Hypericum%20perforatum%20L." title=" Hypericum perforatum L."> Hypericum perforatum L.</a> </p> <a href="https://publications.waset.org/abstracts/86519/infrared-spectroscopy-fingerprinting-of-herbal-products-application-of-the-hypericum-perforatum-l-supplements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86519.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">376</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">1</span> Understanding Systemic Barriers (and Opportunities) to Increasing Uptake of Subcutaneous Medroxy Progesterone Acetate Self-Injection in Health Facilities in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oluwaseun%20Adeleke">Oluwaseun Adeleke</a>, <a href="https://publications.waset.org/abstracts/search?q=Samuel%20O.%20Ikani"> Samuel O. Ikani</a>, <a href="https://publications.waset.org/abstracts/search?q=Fidelis%20Edet"> Fidelis Edet</a>, <a href="https://publications.waset.org/abstracts/search?q=Anthony%20Nwala"> Anthony Nwala</a>, <a href="https://publications.waset.org/abstracts/search?q=Mopelola%20Raji"> Mopelola Raji</a>, <a href="https://publications.waset.org/abstracts/search?q=Simeon%20Christian%20Chukwu"> Simeon Christian Chukwu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: The DISC project collaborated with partners to implement demand creation and service delivery interventions, including the MoT (Moment of Truth) innovation, in over 500 health facilities across 15 states. This has increased the voluntary conversion rate to self-injection among women who opt for injectable contraception. While some facilities recorded an increasing trend in key performance indicators, few others persistently performed sub-optimally due to provider and system-related barriers. Methodology: Twenty-two facilities performing sub-optimally were selected purposively from three Nigerian states. Low productivity was appraised using low reporting rates and poor SI conversion rates as indicators. Interviews were conducted with health providers across these health facilities using a rapid diagnosis tool. The project also conducted a data quality assessment that evaluated the veracity of data elements reported across the three major sources of family planning data in the facility. Findings: The inability and sometimes refusal of providers to support clients to self-inject effectively was associated with the misunderstanding of its value to their work experience. It was also observed that providers still held a strong influence over clients’ method choices. Furthermore, providers held biases and misconceptions about DMPA-SC that restricted the access of obese clients and new acceptors to services – a clear departure from the recommendations of the national guidelines. Additionally, quality of care standards was compromised because job aids were not used to inform service delivery. Facilities performing sub-optimally often under-reported DMPA-SC utilization data, and there were multiple uncoordinated responsibilities for recording and reporting. Additionally, data validation meetings were not regularly convened, and these meetings were ineffective in authenticating data received from health facilities. Other reasons for sub-optimal performance included poor documentation and tracking of stock inventory resulting in commodity stockouts, low client flow because of poor positioning of health facilities, and ineffective messaging. Some facilities lacked adequate human and material resources to provide services effectively and received very few supportive supervision visits. Supportive supervision visits and Data Quality Audits have been useful to address the aforementioned performance barriers. The project has deployed digital DMPA-SC self-injection checklists that have been aligned with nationally approved templates. During visits, each provider and community mobilizer is accorded special attention by the supervisor until he/she can perform procedures in line with best practice (protocol). Conclusion: This narrative provides a summary of a range of factors that identify health facilities performing sub-optimally in their provision of DMPA-SC services. Findings from this assessment will be useful during project design to inform effective strategies. As the project enters its final stages of implementation, it is transitioning high-impact activities to state institutions in the quest to sustain the quality of service beyond the tenure of the project. The project has flagged activities, as well as created protocols and tools aimed at placing state-level stakeholders at the forefront of improving productivity in health facilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=family%20planning" title="family planning">family planning</a>, <a href="https://publications.waset.org/abstracts/search?q=contraception" title=" contraception"> contraception</a>, <a href="https://publications.waset.org/abstracts/search?q=DMPA-SC" title=" DMPA-SC"> DMPA-SC</a>, <a href="https://publications.waset.org/abstracts/search?q=self-care" title=" self-care"> self-care</a>, <a href="https://publications.waset.org/abstracts/search?q=self-injection" title=" self-injection"> self-injection</a>, <a href="https://publications.waset.org/abstracts/search?q=barriers" title=" barriers"> barriers</a>, <a href="https://publications.waset.org/abstracts/search?q=opportunities" title=" opportunities"> opportunities</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a> </p> <a href="https://publications.waset.org/abstracts/166202/understanding-systemic-barriers-and-opportunities-to-increasing-uptake-of-subcutaneous-medroxy-progesterone-acetate-self-injection-in-health-facilities-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166202.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">79</span> </span> </div> </div> </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 href="https://waset.org/page/support">About Us</a></li> <li><a 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