56 research outputs found

    ANALYZING THE RELATIONSHIP BETWEEN ANAEROBIC PERFORMANCE WITH ISCHEMIC PRECONDITIONING (IP) APPLICATION

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    The purpose of this study is to analyze the effects on recovery and anaerobic resistance when ischemic preconditioning is applied to the lower extremities of athletes. 12 male volunteers participated in this study with average age of 21.58±1.52 years. After all details of this study were explained to participants and approvals were collected, rast anaerobic power test was applied on consecutive days and blood lactate levels were measured. For the data analysis, researchers applied the Wilcoxon Signed Ranks test among a parametric test to evaluate pre- and post- ischemia/reperfusion rast test results. Additionally, a repetitive Friedman test analysis was used for analyzing lactic acid parameters. Additionally, a repetitive Friedman test analysis was used for analyzing lactic acid parameters. The significance level for the test results was determined as p<0.05, and values below this level were evaluated as statistically significant. When rast anaerobic power test results before and after the ischemia-reperfusion application were considered, it was seen that there was positive decrease in the fatigue index value, a positive increase in maximum power output and average power values, and that this had statistically significant results (p<0.05). Additionally, analysis results showed that when temporal level effects of ischemic preconditioning on lactic acid was analyzed, there was no difference on blood lactate values. One cycle of ischemia and reperfusion application showed statistically positive advancement for anaerobic power parameters. In this sense, it can be stated that ischemic preconditioning application increased anaerobic resistance in athletes.  Article visualizations

    LEADERSHIP TO BE TOXIC BEHAVIOR IN HEALTH INSTITUTIONS: EXAMPLE OF A UNIVERSITY HOSPITAL

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    International Congress of Management Economy And Policy, 26-27 Kasım 2016, İstanbulGünümüzde örgütsel yaşamda liderlik kavramı, çalışanlar bağlamında ve örgüt genelinde hayati önem taşıyan bir unsur olarak yer almaktadır. Örgütlerin başarıya ulaşabilmesi için liderlik kavramı son derece önemli bir hal aldığından, bu konuyla ilgili pek çok çalışma yapılmaktadır. Geçmişte yapılmış olan çalışmalar sıklıkla liderliğin yapıcı ve pozitif yönlerini ele almıştır. Günümüzde yapılan çalışmalarda ise ‘liderliğin karanlık yönü’ incelenmeye başlanılmıştır. Liderliğin karanlık yönünü yansıtan liderlik türlerinden biri olarak da çalışmalarda karşımıza toksik liderlik kavramıçıkmaktadır. Toksik liderlik;çalışanlarına karşı onur kırıcı davranışlarda ve motivasyondüşürücü söylemlerde bulunan; örgütün amaç, görev ve hedeflerinin aksi yönünde hareket eden; kısacası çalışan ve örgüt açısından zararlı, etkililik ve verimlilik unsurlarını negatif yönde etkileyen bir liderlik türüdür. Sağlık kurumlarında bulunan liderlik türleri pek çok araştırmaya konu olmuştur. Bu çalışmada ise liderliğin pozitif yönlerinden ziyade yıkıcı, zararlı yönleri ele alınmaktadır. Bu bağlamda çalışmamızda sağlık kurumlarında bulunan toksik liderlik davranışlarından hangilerine daha sık rastlandığının tespit edilmesi amaçlanmaktadır.Bu çalışmada Schmidt’in Toksik Liderlik Ölçeği kullanılmıştır. Araştırmanın çalışma grubunu Isparta ili Süleyman Demirel Üniversitesi Hastanesi çalışanları oluşturmaktadır. Elde edilen bulgular doğrultusunda incelenen üniversite hastanesi örneğinde en yüksek toksik liderlik türünün narsist liderlik olduğu ancak genel olarak toksik liderlik davranış düzeyinin düşük olduğu sonucu ortaya çıkmıştır.Today, the concept of leadership in organizational life is a crucial element in both concept of employees and organization. There are a lot of studies going on because the concept of leadership is extremely important for the success of a state organization. The studies conducted in the past have approached leadership in constructive and positive ways. Studies conducted in nowadays focus on dark side of the leadership. In studies, toxic leadership concept reflects one of dark side of leadership. Toxic leadership is degrading behavior towards its employees, moving in the opposite direction of the mission, goals and purpose of the organization; in short is a leadership type that is detrimental to the both employee and organization, affecting negatively both the effectiveness and efficiency elements. Leadership types in health institutions has been the subject of much research. Purpose of these researches are to determine which of these behaviors are more common in health institutions. Schmidt's Leadership Scale is used in these researches. Study group of this research is Isparta's Suleyman Demirel University Hospital Research Constitutes employees. According to the results from this study, the highest type of toxic leadership is narcist leadership but there are low levels of such toxic leadership behavior in Suleyman Demirel University Hospital Research Constitute

    LABORATUVAR ÇALIŞANLARINDA İŞ DOYUMU VE TÜKENMİŞLİK: SAKARYA ve VAN ÖRNEKLEMİ

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    Özet Amaç: Çalışmanın amacı, laboratuvar çalışanlarında mesleki tükenmişlik ve iş doyumu düzeylerini incelemektir.  Yöntem: Bu amaçla laboratuvarlarda çalışan ve katılımcı olmayı kabul eden toplam 118 (85 Sakarya Üniversitesi Eğitim Araştırma Hastanesi laboratuvarları ve 33 Van Yüzüncü Yıl Üniversitesi Dursun Odabaş Tıp Merkezi laboratuvarları) laboratuvar çalışanına anket uygulandı.  Bulgular: Laboratuvar çalışanlarında MİDÖ değerlerinin ortalaması nötr puan olan 60'ın üzerindedir. Bu da iş doyumunun olduğunu göstermektedir. Maslach'ın tükenmişlik alt boyutları incelendiğinde ise; her üç alt boyut için de tükenmişlik düşük düzey aralığında tespit edildi.   Sonuç: Katılımcıların çalışma koşullarında olumsuz olarak nitelendirdiği özellikler tespit edilip iyileştirilmelidir. Ayrıca memnuniyetin arttırılması için de sosyal destek programlarının geliştirilip düzenli olarak uygulanması; laboratuvar personelinin tükenmişlik durumlarının iyileştirilmesi, iş doyumunun arttırılması, iş verimliliklerinin ve başarılarının arttırılması yönünden oldukça önemlidir

    Determination of crop water stress index (CWSI) of second crop corn in a semiarid climate

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    This study was carried out to determine the relationship between the canopy-air temperature differential and vapor pressure deficit (VPD), which can be used to quantify the crop water stress index (CWSI) under fully irrigated ( 100 %) and maximum water stress (0 %) conditions of furrow irrigated corn. The effects of five different irrigation levels (100, 70, 50, 30 and 0 % replenishment of soil water depleted from the 0.90 m soil profile depth) on corn yields and the resulting CWSI were investigated. The highest yield and total water use were obtained under fully irrigated corn plots (100 % replenishment of soil water depleted). The trends in CWSI values were consistent with the soil water content induced by deficit irrigation. CWSI increased with increased soil water deficit. An average CWSI of 0.22 before irrigation time provided the highest grain corn yield. The yield was directly correlated with seasonal mean CWSI values and a second order polynomial equation “Y = 59258CWSI2 -72051CWSI +24060” can be used to predict the grain yield of corn as a second crop under the semiarid climate

    Evaluation of Incidence and Clinical Features of Antibody-Associated Autoimmune Encephalitis Mimicking Dementia

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    Background. Anti-neuronal autoimmunity may cause cognitive impairment that meets the criteria for dementia. Objective. Our aim was to detect the incidence and clinical features of autoimmune encephalitis imitating clinical findings of primary dementia disorders and to delineate the validity of anti-neuronal antibody screening in dementia patients. Methods. Fifty consecutive patients fulfilling the clinical criteria for primary dementia, 130 control patients, and 50 healthy controls were included. Their sera were investigated for several ion channel and glutamic acid decarboxylase (GAD) antibodies by a cell-based assay, radioimmunoassay, and ELISA, as required. Results. Sixteen patients satisfying dementia criteria had atypical findings or findings suggestive of autoimmune encephalitis. N-methyl-D-aspartate receptor (NMDAR) antibody was detected in a patient with dementia, Parkinsonism, and REM sleep behavior disorder (RBD) fulfilling the criteria for dementia with Lewy bodies (DLB). One control patient with bipolar disease displayed low anti-GAD antibody levels. Conclusions. Our study showed for the first time the presence of parkinsonism and RBD in an anti-NMDAR encephalitis patient mimicking DLB. Although autoimmune encephalitis patients may occasionally present with cognitive decline, most dementia patients do not exhibit anti-neuronal antibodies, suggesting that routine analysis of these antibodies in dementia is not mandatory, even though they display atypical features

    To what extent the novel, The Great Gatsby by Scott F. Fitzgerald reflects the post-war socio-cultural differences of America with regard to decaying moral values and the concepts of new and old money?

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    This extended essay is a study of the extent to which the novel The Great Gatsby by Scott F. Fitzgerald reflects the post-war socio-cultural differences of America. The essay involves the exploration of this subject in terms of the decaying moral values and the concepts of new and old money, which are proper examples for the specified illustrations of the impacts of World War 1 on America in the novel. The research question mainly handled primarily with references from the novel itself however, I have used several secondary resources to support my ideas properly, which I have cited with a bibliography. The purpose of this study is to analyze in what ways and to what extent the author handled the post-war social sequences which are mentioned above and the reliability of the historical context took place in the novel with references to author’s personal life. The essay is composed of two sections, the titles Decaying Moral Values (II.A) and Old Money vs. New Money (II.B). On the first section, the moral corruption, which is a major outcome of World War 1, is discussed in order to evaluate my research question broadly. The second section, Old Money vs. New Money, is about another essential outcome of The World War 1, which is consisted of economic issues and includes the detailed investigation of the clash between newly rich and born-rich. While I was analyzing these sections, I also make connections between them to achieve an accurate conclusion. As a conclusion, it is approved that Scott F. Fitzgerald has reflected the postwar socio-cultural differences of America fluently thorough out the novel with regard to his personal experiences of that era

    CFD-driven surrogate-based multi-objective shape optimization of an elbow type draft tube

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    Draft tube is the part of Francis turbines which is used to both discharge water and recover kinetic energy at the exit of the runner. A design optimization study of an elbow type draft tube based on the combined use of Computational Fluid Dynamics (CFD), design of experiments, surrogate models and multi-objective optimization is presented in this study. The geometric variables that specify the shape of the draft tube are chosen as input variables for surrogate models and the pressure recovery factor and the head loss are selected as output responses. It is determined that, pressure recovery factor, which is the main performance parameter, can be increased by 4.3%, and head loss can be reduced by %20 compared to the initial CFD aided design. Pressure recovery factor, is represented with a second order polynomial regression model in terms of the geometrical parameters based on the optimization results. The verification of the model is also provided by comparison with CFD results for different draft tubes other than that are used in the development of the model. The model is verified using 30 different design points and it can predict the pressure recovery factor with an error of less than 8%. This model allows the fast and correct design and optimization of elbow type draft tubes, without the need for further CFD simulations. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.The computations are performed using the computational cluster and computer infrastructure of TOBB ETU Hydro Energy Research Laboratory, financially supported by Turkish Ministry of Development. The first author was also financially supported by Turkish Scientific and Research Council (Tubitak) BIDEB program for her MS studies which is the subject of this article

    Simultaneous Measurement And Analysis Of Noise Levels In Flexible And Rigid Pavements

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    Beton yollar dünyada yaygın olarak kullanılmasına karşın ülkemizde gelişim gösterememiş, bu nedenle de genel olarak bitümlü sıcak karışım asfalt yollar tercih edilmiştir. Bu çalışmada, Türkiye'de yaygın olarak kullanılan bitümlü sıcak karışım asfalt yollar ve henüz yaygınlaşmamış olan beton yollar arasında gürültü seviyeleri yönünden bir karşılaştırma yapılmıştır. Bunun için Afyonkarahisar-Emirdağ arasında inşa edilmiş 2 km'lik beton yol ile bu yolun devamı olan bitümlü sıcak karışım asfalt yol arasındaki geçiş noktası çalışma koridoru olarak kullanılmıştır. Bu koridordaki beton yol ve bitümlü sıcak karışım asfalt yolun kenarlarına, ses girişimlerini en aza indirecek şekilde, ayrı ayrı gürültü ölçüm cihazı ve kamera düzenekleri yerleştirilmiş, yol yapım malzemesine bağlı olarak değişen gürültü seviyeleri eş zamanlı olarak kaydedilmiş, bulunan değerler analiz edilerek kaplama türleri ile gürültü seviyeleri arasındaki ilişki araştırılmıştır. Bu aşamada, kurulan düzenekler arasındaki mesafe trafik yoğunluğunun ve akış hızının değişimini engellemek için mümkün olduğunca kısa tutulmuştur. Yapılan ölçüm ve analizler sonunda beton yolların bitümlü sıcak karışım asfalt yollara göre ortalama gürültü seviyesinin aynı taşıt kompozisyonu ve trafik hacmi için yaklaşık 4 dB(A) daha düşük olduğu ortaya konmuş ve ülkemizde de beton yolların gelişim göstermesi gerektiği vurgulanmıştır.Although concrete roads have been used worldwide for years, the same improvement could not exist in Turkey and therefore, bituminous (hot mix) asphalt roads were preferred instead. In this paper, the vastly built HMA (Hot Mix Asphalt) roads and rarely preferred concrete roads were compared based on their level of noise. For this purpose, the concrete road at the length of 2 kilometers between Afyonkarahisar and Emirdag; also the transition point to the HMA road (which continues after the concrete road) was observed. Both concrete and HMA road ends of this transition point was equipped with a noise measurement device and a camera was installed separately for providing minimum level of noise interference. Consequently, change in the noise levels depending on the building material of roads was recorded simultaneously. These factors was analysed and various models related to the sort of coating was provided. At this stage, the distance between set up points was kept as short as possible in order to prevent different results in the density of traffic and also in the flow rate. Result of various measurements and analysis provided the noise levels of concrete roads being 4 dB(A) less than HMA roads in the comparison based on the same level of vehicle composition and traffic flow. Encouraging the construction of concrete roads in our country is emphasized accordingly
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