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Molińska</title> <meta name="description" content="Search results for: Weronika Molińska"> <meta name="keywords" content="Weronika Molińska"> <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="Weronika Molińska"> <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> 8</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Weronika Molińska</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Differences in the Level of Self-Efficacy and Intensity of Narcissism among Band and Solo Musicians</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Weronika%20Moli%C5%84ska">Weronika Molińska</a>, <a href="https://publications.waset.org/abstracts/search?q=Joanna%20Rajchert"> Joanna Rajchert</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A musical career is not only about the quality of performing or playing music. Musicians can choose from a variety of specializations and career paths. The described study focused on psychological traits which relate to a solo career (performing individually or as a leader) or performing as part of a chamber ensemble, ensemble, choir, or orchestra. The hypothesis predicted that narcissism and self-efficacy would be higher in musicians performing solo. The study involved 124 professional musicians: instrumentalists and soloists, singers (n = 59), and ensemble instrumentalists and singers (n = 65). The results confirmed the hypothesis and showed that soloists were higher on self-efficacy and narcissism. In particular, soloists were higher on leader characteristics, demand for admiration, and vanity than musicians performing in ensembles. The result of these studies is a good introduction to a broader project answering the questions of what can increase or decrease the musician's sense of self-efficacy and whether the decreased self-efficacy could induce musicians to give up their solo careers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=self-efficacy" title="self-efficacy">self-efficacy</a>, <a href="https://publications.waset.org/abstracts/search?q=musicians" title=" musicians"> musicians</a>, <a href="https://publications.waset.org/abstracts/search?q=musical%20profession" title=" musical profession"> musical profession</a>, <a href="https://publications.waset.org/abstracts/search?q=narcissism" title=" narcissism"> narcissism</a>, <a href="https://publications.waset.org/abstracts/search?q=soloists" title=" soloists"> soloists</a> </p> <a href="https://publications.waset.org/abstracts/146167/differences-in-the-level-of-self-efficacy-and-intensity-of-narcissism-among-band-and-solo-musicians" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146167.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">64</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> Methodology of Choosing Technology and Sizing of the Hybrid Energy Storage Based on Cost-benefit Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Krzysztof%20Rafa%C5%82">Krzysztof Rafał</a>, <a href="https://publications.waset.org/abstracts/search?q=Weronika%20Radziszewska"> Weronika Radziszewska</a>, <a href="https://publications.waset.org/abstracts/search?q=Hubert%20Biedka"> Hubert Biedka</a>, <a href="https://publications.waset.org/abstracts/search?q=Oskar%20Grabowski"> Oskar Grabowski</a>, <a href="https://publications.waset.org/abstracts/search?q=Krzysztof%20Mik"> Krzysztof Mik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present a method to choose energy storage technologies and their parameters for the economic operation of a microgrid. A grid-connected system with local loads and PV generation is assumed, where an energy storage system (ESS) is attached to minimize energy cost by providing energy balancing and arbitrage functionalities. The ESS operates in a hybrid configuration and consists of two unique technologies operated in a coordinated way. Based on given energy profiles and economical data a model calculates financial flow for ESS investment, including energy cost and ESS depreciation resulting from degradation. The optimization strategy proposes a hybrid set of two technologies with their respective power and energy ratings to minimize overall system cost in a given timeframe. Results are validated through microgrid simulations using real-life input profiles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20storage" title="energy storage">energy storage</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20energy%20storage" title=" hybrid energy storage"> hybrid energy storage</a>, <a href="https://publications.waset.org/abstracts/search?q=cost-benefit%20analysis" title=" cost-benefit analysis"> cost-benefit analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=microgrid" title=" microgrid"> microgrid</a>, <a href="https://publications.waset.org/abstracts/search?q=battery%20sizing" title=" battery sizing"> battery sizing</a> </p> <a href="https://publications.waset.org/abstracts/141372/methodology-of-choosing-technology-and-sizing-of-the-hybrid-energy-storage-based-on-cost-benefit-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141372.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">219</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> Influence of Animal Assisted Activity with Cat on Emotions of People with Intellectual Disabilities: Preliminary Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Angelika%20Magiera">Angelika Magiera</a>, <a href="https://publications.waset.org/abstracts/search?q=Weronika%20Penar"> Weronika Penar</a>, <a href="https://publications.waset.org/abstracts/search?q=Czes%C5%82aw%20Klocek"> Czesław Klocek</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Intellectual disability (ID) affects approximately 1.55% of children and adults in the society of developed countries. Depending on the ID degree, the patient is burdened with additional disease entities. Intellectual disability does not only limits a person’s opportunities to participate in social life but also affects whole families. People with ID belong to the group of risk of mental illnesses, they are less emotionally stable, while families are predisposed to depression. The study was held in a day care center for people with intellectual disabilities (of various degrees of disability) on 26 people. Nurses and carers also took part. The age range of study groups ranged from 22 to 67 years. Therapeutic classes were held for four independent mixed groups (sex and intellectual disability degree) from 6 to 7 people each, lasting no more than 30 minutes. They were created by the facility's staff to make sure that a group is stable. The animal assisted activity took place with a 2.5-year-old Ragdoll cat. The animal has passed the exam (certificate entitling her to take part in felinotherapy) and had 1.5 years of work experience. Due to the different degrees of ID, an individual emotional state survey was conducted among the caregivers of those who were involved in the activity, to assess the impact of animal assisted activity with a cat on patients. A positive effect on the emotional state of people with different types of intellectual disability was observed. Caregivers and nurses of those participating in the study express willingness to continue these types of classes and consider them necessary for this group of people. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intellectual%20disabilities" title="intellectual disabilities">intellectual disabilities</a>, <a href="https://publications.waset.org/abstracts/search?q=animal-assisted%20activity" title=" animal-assisted activity"> animal-assisted activity</a>, <a href="https://publications.waset.org/abstracts/search?q=cat" title=" cat"> cat</a>, <a href="https://publications.waset.org/abstracts/search?q=feline" title=" feline"> feline</a>, <a href="https://publications.waset.org/abstracts/search?q=emotions" title=" emotions"> emotions</a> </p> <a href="https://publications.waset.org/abstracts/116880/influence-of-animal-assisted-activity-with-cat-on-emotions-of-people-with-intellectual-disabilities-preliminary-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/116880.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">136</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> Effectiveness of Parent Coaching Intervention for Parents of Children with Developmental Disabilities in the Home and Community </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elnaz%20Alimi">Elnaz Alimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Keriakoula%20Andriopoulos"> Keriakoula Andriopoulos</a>, <a href="https://publications.waset.org/abstracts/search?q=Sam%20Boyer"> Sam Boyer</a>, <a href="https://publications.waset.org/abstracts/search?q=Weronika%20Zuczek"> Weronika Zuczek</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Occupational therapists can use coaching strategies to guide parents in providing therapy for their children with developmental disabilities. Evidence from various fields has shown increased parental self-efficacy and positive child outcomes as benefits of home and community-based parent coaching models. A literature review was conducted to investigate the effectiveness of parent coaching interventions delivered in home and community settings for children with developmental disabilities ages 0-12, on a variety of parent and child outcomes. CINAHL Plus, PsycINFO, PubMed, OTseeker were used as databases. The inclusion criteria consisted of: children with developmental disabilities ages 0-12 and their parents, parent coaching models conducted in the home and community, and parent and child outcomes. Studies were excluded if they were in a language other than English and published before 2000. Results showed that parent coaching interventions led to more positive therapy outcomes in child behaviors and symptoms related to their diagnosis or disorder. Additionally, coaching strategies had positive effects on parental satisfaction with therapy, parental self-efficacy, and family dynamics. Findings revealed decreased parental stress and improved parent-child relationships. Further research on parent coaching could involve studying the feasibility of coaching within occupational therapy specifically, incorporating cultural elements into coaching, qualitative studies on parental satisfaction with coaching, and measuring the quality of life outcomes for the whole family. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coaching%20model" title="coaching model">coaching model</a>, <a href="https://publications.waset.org/abstracts/search?q=developmental%20disabilities" title=" developmental disabilities"> developmental disabilities</a>, <a href="https://publications.waset.org/abstracts/search?q=occupational%20therapy" title=" occupational therapy"> occupational therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=pediatrics" title=" pediatrics"> pediatrics</a> </p> <a href="https://publications.waset.org/abstracts/87802/effectiveness-of-parent-coaching-intervention-for-parents-of-children-with-developmental-disabilities-in-the-home-and-community" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87802.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">4</span> The Cytoprotective Role of Antioxidants in Mammalian Cells Exposed to Variable Temperature, Pressure Overload and Radiation in the Stratosphere</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dawid%20Przystupski">Dawid Przystupski</a>, <a href="https://publications.waset.org/abstracts/search?q=Agata%20Gorska"> Agata Gorska</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulina%20Rozborska"> Paulina Rozborska</a>, <a href="https://publications.waset.org/abstracts/search?q=Weronika%20%20Bartosik"> Weronika Bartosik</a>, <a href="https://publications.waset.org/abstracts/search?q=Olga%20Michel"> Olga Michel</a>, <a href="https://publications.waset.org/abstracts/search?q=Joanna%20Rossowska"> Joanna Rossowska</a>, <a href="https://publications.waset.org/abstracts/search?q=Anna%20Szewczyk"> Anna Szewczyk</a>, <a href="https://publications.waset.org/abstracts/search?q=Malgorzata%20Drag-Zalesinska"> Malgorzata Drag-Zalesinska</a>, <a href="https://publications.waset.org/abstracts/search?q=Jedrzej%20Gorski"> Jedrzej Gorski</a>, <a href="https://publications.waset.org/abstracts/search?q=Julita%20Kulbacka"> Julita Kulbacka</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Researchers are still looking for an answer to the question which has been fascinating the mankind for generations, specifically – is there life beyond Earth? As long as routine flights to other planets remain beyond our reach, there is a need to find alternative ways to conduct the astrobiological research. It is worth noticing that the part of the Earth’s atmosphere, stratosphere, has been found to show subcosmic environmental conditions, namely temperatures around -50°C, very rarefied air, increased cosmic radiation and the Sun’s ultraviolet radiation. This phenomenon gives rise to the opportunity for the use of stratospheric environment as a research model for the space conditions. Therefore the idea of conducting astrobiological experiments during the stratospheric flights arose. Up to now, the preliminary work in this field included launching balloons containing solely microbiological samples into the stratosphere to figure out if they would be able to survive under the stratospheric conditions. In our study, we take this concept further, sending the human healthy and cancerous cells treated with various compounds to investigate whether these medicines are capable to protect the cells against stratospheric stress. Due to oxidative stress caused by ionizing radiation and temperature shock, we used natural compounds which display antioxidant properties. In this way, we were able to reduce the reactive oxygen species production affecting cells, which results in their death. After-flight laboratory tests of biological samples from the stratosphere have been performed and indicated the most active antioxidants as potential agents which can minimize the harmful impacts of stratospheric conditions, especially radiation and temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidants" title="antioxidants">antioxidants</a>, <a href="https://publications.waset.org/abstracts/search?q=stratosphere" title=" stratosphere"> stratosphere</a>, <a href="https://publications.waset.org/abstracts/search?q=balloon%20flight" title=" balloon flight"> balloon flight</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidative%20stress" title=" oxidative stress"> oxidative stress</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20death" title=" cell death"> cell death</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation" title=" radiation"> radiation</a> </p> <a href="https://publications.waset.org/abstracts/102351/the-cytoprotective-role-of-antioxidants-in-mammalian-cells-exposed-to-variable-temperature-pressure-overload-and-radiation-in-the-stratosphere" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102351.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">3</span> MR Enterography Findings in Pediatric and Adult Patients with Crohn's Disease</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karolina%20Siejka">Karolina Siejka</a>, <a href="https://publications.waset.org/abstracts/search?q=Monika%20Piekarska"> Monika Piekarska</a>, <a href="https://publications.waset.org/abstracts/search?q=Monika%20Zbroja"> Monika Zbroja</a>, <a href="https://publications.waset.org/abstracts/search?q=Weronika%20Cyranka"> Weronika Cyranka</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryla%20Kuczynska"> Maryla Kuczynska</a>, <a href="https://publications.waset.org/abstracts/search?q=Magdalena%20Grzegorczyk"> Magdalena Grzegorczyk</a>, <a href="https://publications.waset.org/abstracts/search?q=Malgorzata%20Nowakowska"> Malgorzata Nowakowska</a>, <a href="https://publications.waset.org/abstracts/search?q=Agnieszka%20Brodzisz"> Agnieszka Brodzisz</a>, <a href="https://publications.waset.org/abstracts/search?q=Magdalena%20Maria%20Wozniak"> Magdalena Maria Wozniak </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Crohn’s disease is one of chronic inflammatory bowel diseases. It is increasing in prevalence worldwide, especially with young people. The disease usually occurs in the second to the fourth decade of life. Traditionally is diagnosed by clinical indicates, endoscopic, and histological findings. Magnetic Resonance Enterography (MRE) can demonstrate mural and extramural inflammatory signs and complications, which make it a valuable diagnostic modality. The study included 76 adults and 36 children diagnosed with Crohn’s disease. Each patient underwent MRE with intravenous administration of a contrast agent. All the studies were performed using Siemens Aera 1.5T scanner according to a local study protocol. Whenever applicable, MR Enterography findings were verified with endoscopy. Forty adults and all 36 children had an active phase of Crohn’s disease; five adults had a chronic phase of the disease; one adult had both chronic and active inflammatory features. Thirty adults have no sings of pathology. In both adult and pediatric groups the most commonly observed manifestation of active disease was thickened edematous ileum wall (26 adults and 36 children). Adults had Bauhin’s valve edema in 58% cases (n=23) and mesenteric changes in 34% cases (n=9). To compare, 32 children had Bauhin’s valve edema (89%) and, in 23 cases, was found inflammatory infiltration of the peri-intestinal fat (64%). The involvement of the large intestine was more common among children (100%). Complications of Crohn’s disease were found commonly in adults (40% of adults, 22% of children). There were observed 18 fistulas (14 adults, four children) and six abscesses (2 adults, four children). MRE is a reliable method in the evaluation of Crohn’s disease activity, especially of its complications. The lack of radiations makes MRE well-tolerated modality, which can be often repeated, particularly in young patients. The disease had different medical sings depending on age – children often had a more active inflammatory process, but there were more complications in the adult group. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Crohn%27s%20disease" title="Crohn's disease">Crohn's disease</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnostics" title=" diagnostics"> diagnostics</a>, <a href="https://publications.waset.org/abstracts/search?q=inflammatory%20bowel%20disease" title=" inflammatory bowel disease"> inflammatory bowel disease</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20resonance%20enterography" title=" magnetic resonance enterography"> magnetic resonance enterography</a>, <a href="https://publications.waset.org/abstracts/search?q=MRE" title=" MRE"> MRE</a> </p> <a href="https://publications.waset.org/abstracts/115430/mr-enterography-findings-in-pediatric-and-adult-patients-with-crohns-disease" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115430.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">2</span> Development of the Squamate Egg Tooth on the Basis of Grass Snake Natrix natrix Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mateusz%20%20Hermyt">Mateusz Hermyt</a>, <a href="https://publications.waset.org/abstracts/search?q=Pawel%20Kaczmarek"> Pawel Kaczmarek</a>, <a href="https://publications.waset.org/abstracts/search?q=Weronika%20Rupik"> Weronika Rupik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The egg tooth is a crucial structure during hatching of lizards and snakes. In contrast to birds, turtles, crocodiles, and monotremes, egg tooth of squamate reptiles is a true tooth sharing common features of structure and development with all the other teeth of vertebrates. The egg tooth; however, due to its function, exhibits structural differences in relation to regular teeth. External morphology seems to be important in the context of phylogenetic relationships within Squamata but up to date, there is scarce information concerning structure and development of the egg tooth at the submicroscopical level. In presented studies detailed analysis of the egg tooth development in grass snake has been performed with the usage of light (including fluorescent), transmission and scanning electron microscopy. Grass snake embryo’s heads have been used in our studies. Grass snake is common snake species occurring in most of Europe including Poland. The grass snake is characterized by the presence of single unpaired egg tooth (as in most squamates) in contrast to geckos and dibamids possessing paired egg teeth. Studies show changes occurring on the external morphology, tissue and cellular levels of differentiating egg tooth. The egg tooth during its development changes its curvature. Initially, faces directly downward and in the course of its differentiation, it gradually changes to rostro-ventral orientation. Additionally, it forms conical dentinal protrusions on the sides. Histological analysis showed that egg tooth development occurs in similar steps in relation to regular teeth. It undergoes initiation, bud, cap and bell morphological stages. Analyses focused on describing morphological changes in hard tissues (mainly dentin and predentin) of egg tooth and in cells which enamel organ consists of. It included: outer enamel epithelium, stratum intermedium, inner enamel epithelium, odontoblasts, and cells of dental pulp. All specimens used in the study were captured according to the Polish regulations concerning the protection of wild species. Permission was granted by the Local Ethics Commission in Katowice (41/2010; 87/2015) and the Regional Directorate for Environmental Protection in Katowice (WPN.6401.257.2015.DC). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hatching" title="hatching">hatching</a>, <a href="https://publications.waset.org/abstracts/search?q=organogenesis" title=" organogenesis"> organogenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=reptile" title=" reptile"> reptile</a>, <a href="https://publications.waset.org/abstracts/search?q=Squamata" title=" Squamata"> Squamata</a> </p> <a href="https://publications.waset.org/abstracts/87266/development-of-the-squamate-egg-tooth-on-the-basis-of-grass-snake-natrix-natrix-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87266.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">179</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> Steps of the Pancreatic Differentiation in the Grass Snake (Natrix natrix) Embryos </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Magdalena%20Kowalska">Magdalena Kowalska</a>, <a href="https://publications.waset.org/abstracts/search?q=Weronika%20Rupik"> Weronika Rupik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The pancreas is an important organ present in all vertebrate species. It contains two different tissues, exocrine and endocrine, that act as two glands in one. The development and differentiation of the pancreas in reptiles is poorly known in comparison to other vertebrates. Therefore, the aim of this study was to investigate the particular steps concerning the differentiation of the pancreas in the grass snake (Natrix natrix) embryos. For this, histological methods (including hematoxylin and eosin, and Heidenhain's AZAN staining), transmission electron microscopy and three-dimensional (3D) reconstructions from serial paraffin sections were used. The results of this study indicated that the first step of pancreas development in Natrix was the connection of the two pancreatic buds: dorsal and ventral one. Then, duct walls in both buds started to be remodeled from the multilayered to single-layered epithelium. This remodeling started in the dorsal bud and was simultaneously with the differentiation of the duct lumens which occurred by the cavition. During this process, the cells that had no contact with the mesenchyme underwent cell death named anoikis. These findings indicated that the walls of ducts in the embryonic pancreas of the grass snake were initially formed by the abundant principal and single endocrine cells. Later the basal and goblet cells differentiated. Among the endocrine cells, as the first the B and A cells differentiated, then the D and PP cells. The next step of the pancreatic development was the withdrawing of the endocrine cells from the duct walls to form the pancreatic islets. The endocrine cells and islets were found only in the dorsal part of the pancreas in Natrix embryos what is different than in other vertebrate species. The islets were formed mainly by the A cells. Simultaneously, with the differentiation of the endocrine pancreas, the acinar tissue started to differentiate. The source of the acinar cells were pancreatic ducts similar as in other vertebrates. The acini formation began at the proximal part of the pancreas and went towards the caudal direction. Differentiating pancreatic ducts developed into the branched system that can be divided into extralobular, intralobular, and intercalated ducts, similarly as in other vertebrate species. However, the pattern of branching was different. In conclusions, particular steps of the pancreas differentiation in the grass snake were different than in other vertebrates. It can be supposed that these differences are related to the specific topography of the snake’s internal organs and their taxonomy position. All specimens used in the study were captured according to the Polish regulations concerning the protection of wild species. Permission was granted by the Local Ethics Commission in Katowice (41/2010; 87/2015) and the Regional Directorate for Environmental Protection in Katowice (WPN.6401.257.2015.DC). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=embryogenesis" title="embryogenesis">embryogenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=organogenesis" title=" organogenesis"> organogenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=pancreas" title=" pancreas"> pancreas</a>, <a href="https://publications.waset.org/abstracts/search?q=Squamata" title=" Squamata"> Squamata</a> </p> <a href="https://publications.waset.org/abstracts/87270/steps-of-the-pancreatic-differentiation-in-the-grass-snake-natrix-natrix-embryos" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87270.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">170</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 href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Explore <li><a href="https://waset.org/disciplines">Disciplines</a></li> <li><a href="https://waset.org/conferences">Conferences</a></li> <li><a href="https://waset.org/conference-programs">Conference Program</a></li> <li><a href="https://waset.org/committees">Committees</a></li> <li><a href="https://publications.waset.org">Publications</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Research <li><a href="https://publications.waset.org/abstracts">Abstracts</a></li> <li><a href="https://publications.waset.org">Periodicals</a></li> <li><a href="https://publications.waset.org/archive">Archive</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Open Science <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Philosophy.pdf">Open Science Philosophy</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Award.pdf">Open Science Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Society-Open-Science-and-Open-Innovation.pdf">Open Innovation</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Postdoctoral-Fellowship-Award.pdf">Postdoctoral Fellowship Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Scholarly-Research-Review.pdf">Scholarly Research Review</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Support <li><a href="https://waset.org/page/support">Support</a></li> <li><a href="https://waset.org/profile/messages/create">Contact Us</a></li> <li><a href="https://waset.org/profile/messages/create">Report Abuse</a></li> </ul> </div> </div> </div> </div> </div> <div class="container text-center"> <hr style="margin-top:0;margin-bottom:.3rem;"> <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" class="text-muted small">Creative Commons Attribution 4.0 International License</a> <div id="copy" class="mt-2">© 2024 World Academy of Science, Engineering and Technology</div> </div> </footer> <a href="javascript:" id="return-to-top"><i class="fas fa-arrow-up"></i></a> <div class="modal" id="modal-template"> <div class="modal-dialog"> <div class="modal-content"> <div class="row m-0 mt-1"> <div class="col-md-12"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button> </div> </div> <div class="modal-body"></div> </div> </div> </div> <script src="https://cdn.waset.org/static/plugins/jquery-3.3.1.min.js"></script> <script src="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/js/bootstrap.bundle.min.js"></script> <script src="https://cdn.waset.org/static/js/site.js?v=150220211556"></script> <script> jQuery(document).ready(function() { /*jQuery.get("https://publications.waset.org/xhr/user-menu", function (response) { jQuery('#mainNavMenu').append(response); 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