Sivas Cumhuriyet Üniversitesi Kurumsal Akademik Arşivi - Sivas Cumhuriyet University Open Access System
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The evaluation of the home service agreement within the scope of labor law
No full textGeçmişten günümüze işçilerin işveren karşısında dezavantajlı konumda olmaları işçileri korumayı gerektiren birçok yasal düzenlemeyi gerekli kılmıştır. Bu yasal düzenlemeler çalışma koşullarına ve şekillerine göre değişiklik göstermektedir. Çalışma hayatında esnekleşmenin bir sonucu olarak farklı çalışma modelleri ortaya çıkmıştır. Evde hizmet sözleşmesi kapsamında çalışmak, işyerinin eve taşınmasının günümüzdeki uzaktan çalışma modeline göre daha basit bir hali denilebilir. Teknolojinin ve kitle iletişim araçlarının henüz kolay ulaşılabilir olmadığı dönemlerde evde hizmet sözleşmesi, eve iş verme yöntemi ile zanaat gerektiren işler için uygulanmaya başlamıştır. Uzaktan çalışma, telekomünikasyon araçlarının kullanılarak işin işyeri dışında evde ya da başka bir yerde görülebildiği bir çalışma modelidir. İşin işyeri dışında görülmesi nedeni ile bu iki çalışma şekli benzerlik göstermektedir. Fakat bu benzerliklerin yanı sıra her iki sözleşme türünün farklılıkları da bulunmaktadır. Evde hizmet sözleşmesi 6098 sayılı Türk Borçlar Kanunu'nda düzenlenirken, uzaktan çalışma sözleşmesi 4857 sayılı İş Kanunu'nda düzenlenmiştir. Çalışma kapsamında Türk Borçlar Kanunu'nda iş görme sözleşmeleri başlığı altında toplanan hizmet sözleşmelerinden hareketle evde hizmet sözleşmesi incelenmeye çalışılmıştır. Çalışmanın devamında uzaktan çalışma kavramı açıklanmış ve bu sözleşme türü kısaca tanıtılmıştır. Son olarak araştırmamızın iki ana konusu olan bu sözleşme türleri karşılaştırılmıştır.Throughout history, workers have often been in a disadvantaged position compared to employers, which has made many legal regulations necessary. These legal regulations vary depending on the working conditions and forms. As a result of the flexibilization of work life, different working models have emerged. Examples of this include the home service contract and the remote work contract, which are the focus of our thesis. Working under a home service contract can be seen as a simpler version of the current remote work model, where the workplace is moved to the home. In times when technology and mass communication tools were not easily accessible, home service contracts were applied for craft-based jobs through the method of giving work to the home. Today, this work model is still applied in jobs such as packaging and preparing dowries. Remote work, on the other hand, is a work model where the job is performed outside of the workplace, in the home or elsewhere, using telecommunication tools. Since the work is performed outside the workplace, these two working models share similarities. However, along with these similarities, there are also differences. The home service contract is regulated under the Turkish Code of Obligations No. 6098, while the remote work contract is regulated under the Labor Law No. 4857. In our research, the home service contract is explained in detail under the category of service contracts, which are part of the work performance contracts in the Turkish Code of Obligations. Later, the concept of remote work is discussed, and the remote work contract is examined. Finally, these two main types of contracts, which are the focus of our research, are compared
Polly Stenham's that face: A portrait of parentification and dependency
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The role of C4d expression in the diagnosis of bullous pemphigoid: a clinical and histopathological study
No full textInflammatory processes play a crucial role in both autoimmune and non-autoimmune skin diseases. The complement system contributes to these processes, with both well-established and yet-to-be-confirmed effects. The relationship between C4d, an intermediate product of the complement system, and skin diseases remains an area of ongoing investigation. While the presence and role of C4d in autoimmune and non-autoimmune skin diseases have been explored using immunohistochemical methods, the topic remains inconclusive. Bullous pemphigoid is an autoimmune skin disorder characterized by subepidermal blistering, predominantly affecting the elderly population. This study aims to evaluate the potential of C4d as an alternative immunohistochemical marker to the gold-standard diagnostic method, direct immunofluorescence, in diagnosing Bullous pemphigoid. Additionally, C4d staining patterns were analyzed in correlation with clinical data to assess its prognostic significance. In this retrospective study, the histomorphological, clinical, and demographic data of 43 patients diagnosed with Bullous pemphigoid were analyzed. Immunohistochemical assessment of C4d expression and staining patterns was conducted. The findings suggest that C4d may serve as a potential diagnostic and prognostic marker. C4d expression was significantly more frequent in lesions located on the upper extremities and in patients with higher eosinophil scores. Furthermore, patients with high eosinophil scores were more likely to receive systemic treatment. This study demonstrates that C4d could contribute significantly to the diagnostic process, particularly in cases where immunofluorescence studies are limited
Acute effects of dynamic stretching exercises on vertical jump performance and flexibility [2]
No full textPurpose: This study was conducted to examine the acute effects of dynamic stretching exercises (DSE) on vertical jump height (VJH), muscle strength (MS), and flexibility in athletes and sedentary individuals. Methods: The study included 28 athletes and 28 sedentary. Athlete and sedentary groups were equally distributed into two groups DSE group of 3 and 6 min. At the beginning of the trial, VJH, MS, and flexibility were measured. VJH was measured using the Vertimetric Vertical Jump, was assessed using the Lafayette Manual Muscle Tester, and flexibility was evaluated using a sit-and-reach bench. Both groups jogged for 5 min. One group performed a 3-min DSE, while the other group performed a 6-min DSE. Then, all measurements were repeated immediately after, at 5 min, 10 min, and 15 min (MS was measured only before and immediately after stretching sessions). Results: In our study comparing athletes and sedentary participants, athletes exhibited significant differences in flexibility and VJH, regardless of the duration of stretching. For the 3-min DSE group, flexibility increased immediately after stretching and remained consistent. In the 6-min DSE group, flexibility continued to increase for up to 5 min after DSE, and then it plateaued. When comparing the VJH of athletes in the 3-min and 6-min DSE groups, significant differences were found at 5 and 15 min after DSE. Conclusions: It is thought that including DSE in warm-up protocols will positively affect VJH and flexibility. Six-minute DSE increased strength in sedentary but did not affect strength in athletes. © The Author(s), under exclusive licence to Springer-Verlag Italia S.r.l., part of Springer Nature 2024
Research and product development for Crimean–Congo haemorrhagic fever: priorities for 2024–30
No full textCrimean–Congo haemorrhagic fever (CCHF) is a widely distributed and potentially fatal tick-borne viral disease with no licensed specific treatments or vaccines. In 2019, WHO published an advanced draft of a research and development roadmap for CCHF that prioritised the development and deployment of the medical countermeasures most needed by CCHF-affected countries. This Personal View presents updated CCHF research and development priorities and is the product of broad consultation with a working group of 20 leading experts in 2023–24. The strategic goals, milestones, and timelines have been revised and expanded to reflect scientific advances since 2019, including the identification of antibodies with therapeutic potential and the progression of four vaccine candidates through phase 1 clinical trials. This update emphasises the need for a One Health approach to manage CCHF, from integrated cross-sectoral surveillance to novel interventions that target ticks and their vertebrate hosts to reduce CCHF virus transmission to humans. The overarching vision for rapid diagnostics and specific therapeutics by 2028, followed by options to limit CCHF virus transmission and control disease by 2030, is deliberately ambitious and will only be achieved through coordinated international action from affected countries, funders, scientists, product developers, manufacturers, regulators, national authorities, and policy makers. © 2024Wellcome Trust, WTHealth Security Agenc
Oligocene and early Miocene charophyte flora from the Sivas Basin (Central Anatolia, Turkiye). Biostratigraphy and palaeobiogeography
No full textA rich charophyte assemblage is described and illustrated here from the Upper Paleogene-Lower Neogene lacustrine and palustrine rocks of the Sivas Basin (central Anatolia, Turkiye). The flora was extracted from 3 stratigraphic sections located in the eastern part of the Sivas Basin in the localities of Emirhan, Egribucak, and Taslidere. Nine species belonging to two families (Characeae and Raskyllaceae) are identified here. The Characeae species from Emirhan and Taslidere (Emirhan and Karayun formations) are diverse and the assemblage is represented by Sphaerochara ulmensis, Sphaerochara sp., Chara molassica var. notata, Ch. cf. pappii, Chara sp., Hornichara sp., Lychnothamnus pinguis forma major and Nitellopsis (Tectochara) merianii. Several of these species display a wide biostratigraphic range in Europe spanning from the early Oligocene to middle Miocene. The cooccurrence of L. pinguis and Ch. molassica var. notata suggests that both the Emirhan and Karayun formations are upper Rupelian-lower Chattian (similar to 30-25 Ma). In terms of paleogeography, this flora displays a clear European affinity. The charophyte flora recovered from the Egribucak locality (Unit 3 of the Egribucak Formation) is composed of the single species Rantzieniella nitida which displays a limited biostratigraphic range within the Aquitanian (early Miocene). Accordingly, Unit 3 of the Egribucak Formation can be correlated with the homonymous European charophyte biozone as well as with the Mammal Neogene Zones MN1-2 (similar to 24-21 Ma). Moreover, the occurrence of this index species in central Anatolia confirms its Eurasian distribution highlighting the usefulness of R. nitida in intercontinental basin correlation.Spanish Ministry of Science and Innovation [(PID2020-113912GB-100)]; AGAUR (Catalan Autonomous Government) [2022 SGR 00349]; Scientific and Technological Research Council of Trkiye [TBI bull; TAK-AYDAG-109Y041]; Tasneem Ahmed and Michael Maudsley of the Language Services of the University of BarcelonaThis is a contribution to the project IBERINSULA (PID2020-113912GB-100) funded by the Spanish Ministry of Science and Innovation and the project Geologia Sedimentaria (2022 SGR 00349) of the AGAUR (Catalan Autonomous Government) , with support from the Scientific and Technological Research Council of Tuerkiye (TUEBI center dot TAK-CAYDAG-109Y041) . Drs Khaled Trabelsi and Mehmet Serkan Akkiraz reviewed and greatly improved this manuscript. The English was revised by Tasneem Ahmed and Michael Maudsley of the Language Services of the University of Barcelona. The authors express their gratitude to Dr. Ingeborg Soulie -Marsche for providing the samples studied herein and for offering preliminary charophyte identifications, including Rantzienella nitida
The dual impact: physiological and psychological effects of rapid weight loss in wrestling
No full textIntroduction: Athletes competing in weight-class sports often seek to gain an advantage by competing at lower weights. Athletes competing in weight-class sports often seek to gain an advantage by competing at lower weights. To achieve this, they aim to lose weight during the competition period, leading to various physiological and psychological changes. This study aimed to investigate the biochemical, hormonal, and psychological effects of weight reduction in elite wrestlers during the competition phase. Methods: Thirty-seven elite male free style wrestlers (age: 19.02 +/- 1.27) participated in the study. Samples were collected 5 days before and on the day of the match. Results: A significant decrease in body weight was observed (p < 0.05). Levels of creatine, BUN, sodium, hematocrit, hemoglobin, LDH, and cortisol increased, while albumin, testosterone, and FSH levels decreased. There were no significant differences in potassium, ALT, AST, TSH levels. State and trait anxiety scores of the wrestlers increased significantly during the RWL period. Conclusion: The study concluded that elite wrestlers experienced significant changes in physiological and psychological parameters during the competition periods. These findings underscore the importance of careful monitoring of RWL strategies by coaches and athletes to mitigate the adverse effects on nutritional status, psychological well-being, and physical performance
Determination of antioxidant and antidiabetic effects of metal nanoparticles synthesized using black elderberry (sambucus nigra L.)
No full textBu çalışmada, Sambucus nigra L. (Kara mürver) kullanılarak yeşil sentez yöntemiyle metal nanopartiküller (demir ve selenyum) sentezlenmiş ve bu nanopartiküllerin antioksidan ve antidiyabetik aktiviteleri incelenmiştir. Çalışma kapsamında, demir ve selenyum nanopartiküllerinin sentezinde bitki özütü indirgeyici ve kaplayıcı ajan olarak kullanılmış, sentezlenen nanopartiküllerin karakterizasyonu SEM, FTIR ve XRD analizleri ile yapılmıştır. Sambucus nigra L. meyve özütü, Sambucus nigra L. aracılı FeNP ve SeNP'lerin in vitro yöntemler kullanılarak toplam antioksidan kapasite, toplam flavonoid içerik, toplam fenol içerikleri, hidroksil, 2,2-difenil-1-pikrikhidrazil (DPPH) radikalleri ve hidrojen peroksit nonradikalinin serbest radikalleri giderme aktiviteleri araştırıldı. Ayrıca, α-amilaz ve α-glukozidaz inhibisyon testleri ile antidiyabetik aktiviteleri değerlendirilmiştir. Pozitif kontrol olarak kullanılan akarboz ile tüm sonuçlar karşılaştırıldı. Her bir örneğin α-amilaz ve α-glukozidazı inhibe edebildiği ancak aralarında en iyi antidiyabetik gösteren örneğin SeNP olduğu ve bu sonuçların örneklerin antioksidan özellikleriyle paralel olduğu belirlendi.In this study, metal nanoparticles (iron and selenium) were synthesized by green synthesis method using Sambucus nigra L. (Black elderberry) and their antioxidant and antidiabetic activities were investigated. Within the scope of the study, plant extract was used as reducing and coating agent in the synthesis of iron and selenium nanoparticles and the synthesized nanoparticles were characterized by SEM, FTIR and XRD analyses. The total antioxidant capacity, total flavonoid content, total phenol content, hydroxyl, 2,2-diphenyl-1-picrichydrazyl (DPPH) radicals and hydrogen peroxide nonradical free radical scavenging activities of Sambucus nigra L. fruit extract, Sambucus nigra L. mediated FeNPs and SeNPs were investigated using in vitro methods. In addition, antidiabetic activities were evaluated by α-amylase and α-glucosidase enzyme inhibition tests. All results were compared with acarbose used as a positive control. It was determined that each sample was able to inhibit α-amylase and α-glucosidase enzymes, but SeNP was the best antidiabetic sample among them and these results were in parallel with the antioxidant properties of the samples
SAĞLIK DESTİNASYONLARI PERSPEKTİFİNDEN SAĞLIK TURİZMİ PERFORMANSININ HİBRİT BİR ÇKKV MODELİ İLE ANALİZİ
No full textIt is important for countries to diversify their incomes and to ensure their economic development and social welfare. Health tourism has become a rapidly developing service sector as a new tourism product consisting of the combination of medicine and tourism with the increase in the level of awareness and welfare in the world. Health tourism is travelling to a country or city other than the place where the person lives in order to improve and regain his/her mental and physical health. With these travels, people's expenditures on health tourism are increasing and the health tourism market continues to grow. The aim of this study is to evaluate the performance of health tourism as a tourism product from the perspective of health destinations and to contribute to the development of health tourism. According to TURKSTAT data, health tourism data of 5 provinces with the highest population in Turkey between 2019-2022 were used. For the data, analyses were carried out using PSI and MAIRCA methods within the Multi-Criteria Decision Making Techniques (MCDM). While PSI was used as a method to determine the objective weights of the criteria in line with the model used, MAIRCA method was used to rank the health tourism performance of metropolitan cities by evaluating their performance. As a result of the analyses; Istanbul ranked first in terms of health tourism performance in the year range included in the study.Ülkelerin gelirlerini çeşitlendirmesi, ekonomik kalkınma ve sosyal refahlarının sağlanması açısından önem taşımaktadır. Sağlık turizmi, dünyada farkındalık ve refah seviyesinin artmasıyla birlikte tıp ve turizmin birleşiminden oluşan yeni bir turizm ürünü olarak hızla gelişen bir hizmet sektörü haline gelmiştir. Sağlık turizmi, kişinin ruhsal ve bedensel sağlığının iyileştirilmesi ve yeniden kazandırılması amacıyla yaşadığı yerden başka ülke ya da şehre yaptığı seyahatlerdir. Söz konusu bu seyahatler ile birlikte insanların sağlık turizmine yaptıkları harcamalar da artmakta ve sağlık turizmi pazarı da büyümeye devam etmektedir. Bu çalışmanın amacını; sağlık destinasyonları perspektifinden bir turizm ürünü olan sağlık turizminin performansının değerlendirilmesi ve sağlık turizminin gelişmesine katkı sağlamak oluşturmaktadır. TÜİK verilerine göre Türkiye’de en fazla nüfusa sahip 5 ilin 2019-2022 yılları arasındaki sağlık turizmi verileri kullanılmıştır. Veriler için ÇKKV(Çok Kriterli Karar Verme Teknikleri) içerisinde yer alan PSI ile MAIRCA yöntemleri kullanılarak analizler gerçekleştirilmiştir. Kullanılan model doğrultusunda kriterlere ilişkin objektif ağırlıklarının tespit edilmesinde yöntem olarak PSI kullanılırken, performans değerlendirmesi yapılarak büyükşehirlerin sağlık turizmi performanslarının sıralamasında ise MAIRCA yönteminden yararlanılmıştır. Analizler sonucunda; İstanbul çalışmaya dâhil edilen yıl aralığında sağlık turizmi performansı açısından ilk sırada yer almıştır
Investigating the Potential of an ANFIS-Based Maximum Power Point Tracking Controller for Solar Photovoltaic Systems
No full textThe efficacy of Maximum Power Point Trackers (MPPT) in enhancing the efficiency of photovoltaic (PV) modules has been well documented. They facilitate the maximization of power output from the modules by ensuring impedance matching between the PV modules and the connected load. A range of MPPT techniques has been developed, varying in terms of complexity, tracking speed, cost, accuracy, sensor requirements, and hardware demands. The present paper is concerned with the design and modelling of an Adaptive Neuro-Fuzzy Inference System (ANFIS)-based MPPT controller. The proposed system is designed to maximize the efficiency of PV modules under varying environmental conditions and offers a dynamic and adaptive control strategy to accommodate changes in temperature, irradiance, and load. The implementation of this strategy entails the definition of fuzzy rules, which are delineated in accordance with the operating conditions of the PV modules. These rules provide a logical structure that enables the system to make accurate and rapid decisions by using the input parameters of temperature, irradiance, and load to reach the maximum power point. The employment of fuzzy logic is instrumental in accommodating the intricate and non-linear characteristics inherent in the system, thereby facilitating the dynamic attainment of the optimal operating point in accordance with the prevailing environmental conditions. The efficacy of the proposed ANFIS-based MPPT controller is evaluated through extensive simulations conducted in the MATLAB/SIMULINK environment. The simulation results demonstrate the effectiveness of the system in operating under various load, temperature, and irradiance conditions. In addition, comparisons with the conventional Incremental Conductance (INC) MPPT technique indicate that the ANFIS-based controller provides a more stable and faster dynamic response, reducing oscillations around the maximum power point (MPP)