418 research outputs found

    Zest for Work in Physical Education and Sport Teachers’ Perceptions of Success

    Get PDF
    The aim of the study is to determine the effect of zest for work on physical education teachers' perceptions of success and examine it together with some demographic variables. The study is a descriptive study using relational screening design. The sample of the study consists of 402 physical education teachers, 38% (n: 151) female and 62% (n: 251) male, employed within the Ministry of National Education in Ankara and it was selected by stratified sampling method. The "Perception of Success Scale" and the "Zest for Work Scale" developed by Erdoğan (2013) were used to measure physical education teachers' perceptions of success and their zest for work levels, respectively. Analysis of the data was conducted via SPSS 21 package program. Significance level was taken as p<.05. According to the results of the study, physical education teachers' zest for work levels significantly predicted their perceptions of success. There was a positive and significant relationship between physical education teachers' perceptions of success and their zest for work levels. It was found a positive and significant relationship between physical education teachers' perceptions of success and their ages. Physical education teachers' perceptions of success and their zest for work levels showed a significant difference in favor of female teachers according to the variable of gender. There was no significant difference between physical education teachers' zest for work levels and their ages and the level of institution. It was found no significant difference between physical education teachers' perceptions of success and the level of institution

    Reducing the Roughness and Sound Intensity by Optimization of Cutting Parameters in Processing of AISI 2714 Steel Material on CNC Milling Machine

    Get PDF
    Within the scope of this study, optimization of cutting parameters (feed rate, cutting speed and depth of cut) was aimed in order to reduce the noise level that occurs during the processing of AISI 2714 steel on CNC milling machine without compromising the surface roughness. Experimental design was examined in three variables, three levels and two target functions. In order to investigate the contribution of these parameters to the target function, the experiments were carried out in accordance with the experiment plan determined by using the "Central Composite Design (CCD)" of the "Response Surface Method (RSM)". Mathematical models have been developed in order to predict sound intensity and surface roughness by applying regression analysis to the experimental results. As a result, it has been observed that the most effective parameter in reducing the surface roughness is the feed rate, followed by the depth of cut. While the depth of cut was the most effective parameter in reducing the sound intensity, it was determined that the next effective parameter was the feed rate

    Systematic Review Methodology: A Guide for Preparation of Systematic Review

    Get PDF
    Sistematik derleme, alanında uzman kişiler tarafından elde edilebilir en iyi araştırma kanıtını belirlemek için benzer yöntemlerile yapılmış çok sayıdaki araştırmanın yapılandırılmış ve kapsamlı bir sentezidir. Sistematik derlemenin sağlık bakımındakiönemi, kanıta dayalı uygulamalarda en güçlü kanıtların üretildiği bir araştırma yöntemi olmasından dolayı giderek artmaktadır.Hemşireler sağlık bakım sonuçlarını geliştirebilecek daha güvenilir klinik kararları, elde edilebilir en güçlü araştırmakanıtlarını kullanarak verebilirler. Hemşireler daha güçlü kanıtları üretilebilmek ve kullanabilmek için doğru bir metodoloji ilesistematik derleme araştırmalarını planlayabilir ve yapabilirler. Sistematik derleme hazırlamanın aşamaları; işin tanımlanması,bilgi için tarama yapma, kanıt kalitesinin değerlendirilmesi ve analizi, kanıtın sunumu ve özetlenmesi, kanıtın tartışması,sistematik derlemenin yazımı, dış hakemler ve yayınlamadan oluşmaktadır. Hemşireler sistematik derleme araştırmaları ileelde ettikleri güçlü kanıtları, mevcut uygulamaları değiştirme ve klinik bakımın etkinliğini arttırmada, daha kaliteli ve güvenilirbir bakım sağlamada, bakım rehberleri oluşturmada ve maliyeti azaltmada kullanabilirler. A systematic review is a structured, comprehensive synthesis of studies with similar methodologies in a particular health carearea to determine best research evidence available for expert clinicians to use and to promote evidence-based practice.Systematic review have become increasingly important in health care because of a research method produced the most strongevidence in the evidence-based practice. By using the best research evidence available, nurses can make more strong clinicaldecisions that will improve the health care outcomes. To produce and to use the strong evidence, nurses might plan and makesystematic reviews with a correct methodology. The stages of preparation of systematic review consists of defining the task,searching for information, appraising and analysing the evidence, summarising and presenting the evidence, discussion theevidence, reporting the review, external peer review and dissemination. Nurses can use the strong evidence obtained fromsystematic reviews in the modification of existing applications and in the increasing the effectiveness of clinical care, theproviding a better quality and reliable care, the creating care guides and the reducing the cost

    Systematic Review Methodology: A Guide for Preparation of Systematic Review

    Get PDF
    Sistematik derleme, alanında uzman kişiler tarafından elde edilebilir en iyi araştırma kanıtını belirlemek için benzer yöntemlerile yapılmış çok sayıdaki araştırmanın yapılandırılmış ve kapsamlı bir sentezidir. Sistematik derlemenin sağlık bakımındakiönemi, kanıta dayalı uygulamalarda en güçlü kanıtların üretildiği bir araştırma yöntemi olmasından dolayı giderek artmaktadır.Hemşireler sağlık bakım sonuçlarını geliştirebilecek daha güvenilir klinik kararları, elde edilebilir en güçlü araştırmakanıtlarını kullanarak verebilirler. Hemşireler daha güçlü kanıtları üretilebilmek ve kullanabilmek için doğru bir metodoloji ilesistematik derleme araştırmalarını planlayabilir ve yapabilirler. Sistematik derleme hazırlamanın aşamaları; işin tanımlanması,bilgi için tarama yapma, kanıt kalitesinin değerlendirilmesi ve analizi, kanıtın sunumu ve özetlenmesi, kanıtın tartışması,sistematik derlemenin yazımı, dış hakemler ve yayınlamadan oluşmaktadır. Hemşireler sistematik derleme araştırmaları ileelde ettikleri güçlü kanıtları, mevcut uygulamaları değiştirme ve klinik bakımın etkinliğini arttırmada, daha kaliteli ve güvenilirbir bakım sağlamada, bakım rehberleri oluşturmada ve maliyeti azaltmada kullanabilirler. A systematic review is a structured, comprehensive synthesis of studies with similar methodologies in a particular health carearea to determine best research evidence available for expert clinicians to use and to promote evidence-based practice.Systematic review have become increasingly important in health care because of a research method produced the most strongevidence in the evidence-based practice. By using the best research evidence available, nurses can make more strong clinicaldecisions that will improve the health care outcomes. To produce and to use the strong evidence, nurses might plan and makesystematic reviews with a correct methodology. The stages of preparation of systematic review consists of defining the task,searching for information, appraising and analysing the evidence, summarising and presenting the evidence, discussion theevidence, reporting the review, external peer review and dissemination. Nurses can use the strong evidence obtained fromsystematic reviews in the modification of existing applications and in the increasing the effectiveness of clinical care, theproviding a better quality and reliable care, the creating care guides and the reducing the cost

    TPH1 (tryptophan hydroxylase 1)

    Get PDF
    Tryptophan hydroxylase 1 gene (TPH1) encodes a rate-limiting enzyme in the biosynthesis of the monoamine neurotransmitter serotonin. TPH1 is expressed in peripheral tissues such as the heart, lung, kidney, duodenum and adrenal gland, as well as in female reproductive tissues. The mutations in this gene have been associated with various diseases with high risk, including, schizophrenia, somatic anxiety, anger-related features, bipolar disorder, suicidal behavior, and several addictions

    Examining the Relationship between Referee Self-efficacy and General Self-efficacy Levels of Basketball Referees in Terms of Certain Variables

    Get PDF
    The aim of this study is to examine the relationship between referee self-efficacy and general self-efficacy levels of basketball referees in terms of gender, education, age and refereeing experience. The study group was created within a convenience sampling method. 192 referees, 10% (n=19) female, and 90% (n=173) male, who performed active refereeing within Turkish Basketball Federation during 2016-2017 basketball season participated in the study. The personal information form, Referee Self-Efficacy Scale (REFS) and the General Self-Efficacy Scale (GSE) were used as data collection tools. The analysis of the data was conducted using SPSS 21 and AMOS programs. Pearson Product Moment Correlation Coefficient, t-test and one-way variance analysis (ANOVA) were used in determining the relationships between variables, binary and multiple comparisons, respectively. Total scores of referees in REFS and scores obtained from sub-dimensions of physical fitness and decision making show a significant difference according to gender. There is a positive and significant relationship between referees’ physical fitness, game knowledge, decision making, pressure, communication, total scores in GES and REFS, and their age and refereeing experience. There is a positive and significant relationship between referees’ physical fitness, game knowledge, decision making, pressure, communication, total scores in GES and REFS, and all other variables. There is no significant difference between REFS total score, physical fitness, game knowledge, decision making, pressure and communication of referees, and education

    Investigation of Effects of Local Vitamin C Application on Inflammatory Response and Periodontal Tissue Destruction in Rat Periodontitis Model

    Get PDF
    Background: The present study aims to evaluate the effect of local vitamin C application on inflammatory response and periodontal tissue destruction in rats with experimental periodontitis. Methods: A total of 21 animals, 7 rats in each group, were used in the study: 1- Non-ligation (NL), 2-experimental periodontitis (EP), and 3- local vitamin C (VtC) groups. Experimental periodontitis was induced in EP and VtC group rats. After 11 days, the ligature was removed. 50 mL of saline solution and vitamin C were injected locally into the vestibule sulcus of the EP and VtC group rats, respectively. After the rats were sacrificed, blood and gingival tissue samples were taken. TNF-α levels were analyzed biochemically in serum and 8-OHdG and MMP-8 were analyzed immunohistochemically in gingival tissue. The mandibular specimens were histologically evaluated for bone destruction and attachment loss. Results: The numeric density of 8-OHdG and MMP-8 immunopositive cells were found to be statistically significantly lower in the Vtc group than in the EP group. Vitamin C administration significantly reduced attachment loss and bone loss in the VtC group as compared to the EP group. However, there was no significant difference in serum TNF-α level in the VtC group compared to the EP group. Conclusions: Local application of vitamin C may reduce inflammation-related bone destruction by supporting the inflammatory response with the antioxidant activity of vitamin C and contributing to the resolution of inflammation with its potential immunomodulatory effect. Vitamin C may be a therapeutic agent that can be used in the treatment of periodontitis

    ACUTE MITRAL INSUFFIENCY DUE TO BLUNT CHEST TRAUMA

    Get PDF
    Künt toraks travmasına bağlı olarak gelişen kardiak yaralanmalar sonucu nadir olarak valvüler lezyonlar ortaya çıkabilmektedir. Acil serviste araç içi trafik kazası nedeniyle değerlendirilen 20 yaşındaki erkek olgunun fizik muayenesinde mitral odakta üfürüm, akciğer kontüzyonu ve şüpheli kot fraktürü saptandı. Daha önceden kardiyak rahatsızlığı ve efor kapasitesinde kısıtlılığı olmadığını ifade eden olguya elektif şartlarda ekokardiyografi (EKO) yapıldı ve posterior leaflet flail görünümde, posterior leafleti tutan kordal yapılarda rüptür ve mitral yetmezlik jetinin tüm sol atriumu doldurmakta olduğu tesbit edilerek ağır mitral yetmezliği (MY) tanısı kondu. Genel durumu iyi olan ve kardiyak yetmezlik bulguları olmayan olgunun medikal tedavisi düzenlenerek servis izlemine alındı. Elektif şartlarda operasyon önerildi. Künt toraks travması ile acil serviste değerlendirilen hastaların kardiyak travmaya açık hastalar olduğu unutulmamalı, dikkatli ve tam fizik muayene yapılmalıdır. Valvuler lesions may be observed due to cardiac injuries after blunt thoracic traumas. A 20 year -old male patient admitted to the emergency department after a car accident. His physical examination reveled a pansystolic murmur at mitral area by auscultation. On his chest X-ray examination, it was found out that pulmonary contusion and a suspected rib fracture were present. This patient didn't declare any prior cardiac illness and exertional dsypnea. Echocardiographic examination was carried out under elective circumstances. This examination defined a flail-like appearance at the posterior leaflet of the mitral valve, rupture of the chordae holding mitral posterior leaflet and severe mitral regurgitation. His general condition was fine and he is given medical treatment at our clinic, and elective mitral valvuler surgery has been proposed. The patients admitted to the emergency department because of blunt chest trauma should be carefully examined
    corecore