Moment Yükü Altındaki Tek Cıvata Bağlantılı Tabakalı Kompozit Plakalarda Hasar Analizi

Konferans Bildirisi -- Teorik ve Uygulamalı Mekanik Türk Milli Komitesi, 2008Conference Paper -- Theoretical and Applied Mechanical Turkish National Committee, 2008Bu çalışmada, moment yükü altındaki tek cıvata bağlantılı tabakalı kompozit plakalarda hasar analizi deneysel olarak yapılmıştır. Tabakalı kompozit plakaların her biri, cam lifi ile takviye edilmiş epoksi matrikse sahip 8 tabakacığın ısı ve basınç altında birleştirilmesi ile meydana getirilmiştir. Kompozit plakalar elde edilirken simetrik düzenleme yapılmıştır. Tabaka dizilişleri; [0°/0°/60°/-60°]s ve [0°/0°/30°/-30°]s olarak seçilmiştir. Deneyler öncelikli olarak herhangi bir moment uygulanmadan (0 Nm) yapılmıştır. Daha sonra aynı boyutlardaki kompozit numuneler üzerine sırasıyla 3 ve 6 Nm ön moment uygulanarak deneyler tekrarlamıştır

EVALUATION OF THE PHYSICAL AND ACOUSTICAL COMPETENCES OF VOCATIONAL MUSIC EDUCATION INSTITUTIONS IN TERMS OF THE REQUIREMENTS OF MUSIC EDUCATION

The purpose of this research is to evaluate the buildings of higher education institutions in Turkey, where vocational music education is delivered, in terms of physical and acoustical sufficiency. This research is a descriptive study conducted with qualitative method and survey model. The population of the research consists of all of the buildings of the higher education institutions in Turkey, where vocational music education is delivered. Data of the research have been collected through semi-structured interview from instructions who serve in a total of 85 different higher education programs in Turkey, where vocational music education activities are conducted. It was determined in line with the collected data that there are important deficiencies in the buildings of the university institutions in Turkey in terms of both physical and acoustical sufficiency, where vocational music education is delivered. On the other hand, only 14% of the instructors stated that the institutional buildings meet the acoustical needs required by vocational music education. In conclusion, this study tries to make suggestions for the solution of the detected problems in order to create a certain standard in physical and acoustical aspects in the buildings of higher education institutions, where vocational music education is delivered

An investigation of acute effects at various doses of malathion on glucose homeostasis and insulin resistance in rat liver, pancreas and serum

Objective. This study investigates acute effects of various doses of Malathion on glucose homeostasis and insulin resistance in rat. Methods. Rats were randomly divided into four groups of 6 animals each. Corn oil was given orally to Group 1. Group 2, Group 3, and Group 4 received malathion dissolved in corn oil via oral administration at the doses of 100, 200 and 400 mg/kg, respectively. 24 hours later the rats were sacrificed. Results. Acute administration of Malathion led to a decrease in serum butryl cholinesterase (BChE) levels at all doses tested. It also caused a significant increase in serum advanced glycation end products (AGEs), insulin, and TNF-α levels at all doses. Moreover, Malathion administration raised the liver ALT, AST and LDH, TNF-α, and glycogen levels in a dose dependent manner. It also led to a remarkable increase in pancreatic insulin levels at all doses. Conclusions. Acute administrations of Malathion affect glucose homeostasis in a dose dependent manner through its effects on the liver, serum, and pancreas

Economic Voting: Determinations and Turkish Context

Bu çalışmada 1950’li yıllarda teorik temelleri atılan ve günümüze kadar birçok araştırmaya konu olan iktisadi oylama literatürüne yönelik yapılan tespitler gösterilmeye çalışılmıştır. Bu tespitler makro ve mikro ölçekte ayrı ayrı ele alınarak değerlendirilmiştir. Çalışmanın amacı iktisadi oylama literatürü hakkında genel bir çerçeveyi araştırmacılara sunmak ve bu konuda çalışmayı düşünen kişilere yol göstermektir. Spesifik olarak, Türkiye örneği çalışan araştırmacıların çalışmalarına yer verilmiştir. Türkiye’deki seçmenlerin oy verme davranışı üzerinde etkili olan iktisadi faktörlerin yanı sıra sosyo-demografik faktörlerin de etkili olduğunu gösteren çalışmalara da yer verilmiştir. Türkiye’deki seçmen profiline bakıldığında ele alınan çalışmaların birçoğunda seçmenlerin genel olarak iktisadi konulara duyarlı olduğu sonucuna ulaşılmıştır.In this study it is aimed to demonstrate findings about economic voting whose theoretical foundations are based on 1950’s and discussed in numerous studies up to now. Findings are evaluated separately as macro and micro. The aim of this study is to present a general framework of economic voting literature and guide to researchers tending to analyzing on that field of study. It is particularly included papers focused on Turkish context by researchers. It is allowed for the studies indicating that sociodemographic issues have influence on voter’s behavior in Turkey as well as economic issues. Considering Turkish voter, it is concluded that most of studies dealing with economic voting found that voters are broadly sensitive to economic issues in Turkey

INVESTIGATION ON THE EFFECT OF SPORT AND ART EDUCATION ON BODY IMAGE

The purpose of this study is determining body image in individuals with sports and fine arts education. 137 male and 120 female, total of 257, sports and fine arts students were participated in the study. Body-Cathexis Scale (BCS) were used. Independent Samples t- test was used for statically processing. Body Image score according to gender found at male 77.96 and female 80.12. Body Image score found at sports students 74.05 and fine arts students 84.03. There was a significant no difference in between sports students and fine arts students in Body Image Score (p>0.05) in gender. There was a significant difference in between sports faculty and fine arts faculty according male and female students in Body Image Score at p<0.001 level. Female students are according male students under greater risk regarding the body image. Body image points were more positively at student of sports than student of fine art. It is thought that sport education affects body image more positively than fine arts education. Getting with sports education could contribute to a positive body image levels

PERCEPTION OF THE BEHAVIORS OF THE COACHES OF FOOTBALL, VOLLEYBALL AND BASKETBALL PLAYERS

The aim of this study is to investigate the perception of the amateur football, volleyball, and basketball players and their coaches’ behaviour towards them. 100 amateur football, 60 volleyball and 62 basketball players that filled recognition survey fully are included to the study. Turkish version of Coach Behavior Rating Scale was used. One Way ANOVA (Analysis of Variance) and LSD (Least Significant Difference) tests were used for statically processing. There is no significant difference found in evaluation of coach behavior of football, volleyball, and basketball players in terms of personal rapport from subscales (p>0.05). A significant difference has been revealed in the sum of scale in physical training and goal setting at p<0.05 level and technical skills, mental preparation, competition strategies, negative personal rapport, and scale total score behavior of coach at p<0.001 level. There were differences according to branches. Technical skills and competition strategies have been found in volleyball more high from amateur football and basketball players. Negative personal rapport has been found in amateur footballers lower from volleyball and basketball players. Differences have been found in detection levels of amateur footballers, volleyball, and basketball players for coaches’ behaviour against them. A very useful outcome would be for a coach to produce a “Personal Improvement Behaviors” and set goals for the next of behaviours. According to branches, the reasons of differences in detection levels of coaches’ behaviors should be determined and eliminated.  Article visualizations

Acute brucella melitensis M16 infection model in mice treated with tumor necrosis factor-alpha inhibitors

Introduction: There is limited data in the literature about brucellosis related to an intracellular pathogen and anti-tumor necrosis factor alpha (anti-TNFα) medication. The aim of this study was to evaluate acute Brucella infections in mice receiving anti-TNFα drug treatment. Methodology: Anti-TNFα drugs were injected in mice on the first and fifth days of the study, after which the mice were infected with B. melitensis M16 strain. Mice were sacrificed on the fourteenth day after infection. Bacterial loads in the liver and spleen were defined, and histopathological changes were evaluated. Results: Neither the liver nor the spleen showed an increased bacterial load in all anti-TNFα drug groups when compared to a non-treated, infected group. The most significant histopathological findings were neutrophil infiltrations in the red pulp of the spleen and apoptotic cells with hepatocellular pleomorphism in the liver. There was no significant difference among the groups in terms of previously reported histopathological findings, such as extramedullary hematopoiesis and granuloma formation. Conclusions: There were no differences in hepatic and splenic bacterial load and granuloma formation, which indicate worsening of the acute Brucella infection in mice; in other words, anti-TNFα treatment did not exacerbate the acute Brucella spp. infection in mice. © 2015 Kutlu et al

Effects of Multiple Sprint Test on Average Speed and Exercise Heart Rate in Amateur Soccer Players

The purpose of this study is to investigate the effects of multiple sprints on average speed and exercise heart rate of U18 female and U18 male amateur soccer players. In this study, totally 42 amateur soccer players including U18 (n= 21) and U18 (n=21) players performed 7 repetitive sprints of 34.2 meters with a 25 seconds jog of 50 meters distance. During exercise and recovery period, heart rate per minute was recorded by Polar Heart Rate Telemetry. In statistical analyzes, t-tests were used in two groups comparisons, while the effects of other variables on average speed and cardiovascular parameters were determined by two way analyzes of variance.Results of this study, U18 male players’ average speed of 5.14 m/ sec is higher than the U18 female players’ average speed of 4.62 m/sec. The physical characteristics of U18 male and U18 female amateur soccer players were different in favors of the U18 male players, and that gender was significantly effective on the average speed rather than the number of sprints.  Heart rate per minute has continually increased in different characteristics at the start, finish and recovery periods of the sprints until the finish of the seventh sprint in both amateur U18 male and U18 female. It found increase in the Sprint time were as follows; U18 female 0.40 sec and U18 male 0.20 second. Decrease in the average speed was U18 female 0.28 sec., and U18 male 0.15 second.Conclusion, in multiple speed tests, maximum and average speed of the U18 amateur female and male soccer players, the decrease rate in their speed and their cardiovascular responses show differences. In U18 Amateur, males seem to be faster and have the ability of keeping speed at a high level, and the ability of intensity and recovery in maximal level in a short time than the females.  In the Bangsbo test, the recovery time in men should be less than 25 seconds

Methylene blue ameliorates colonic injury in acetic acid-induced colitis model

Aim: Inflammatory bowel disease (IBD) is a serious health problem affecting the quality of life. IBDs caused by various pathophysiological mechanisms, including genetic, immunological, inflammatory, and environmental factors. Although it has been widely investigated, treatment of IBDs remains a difficult clinical problem. We aimed to investigate the healing of mucosal damage and anti-inflammatory effects of methylene blue (MB) in experimental colitis model. Material and Methods: Twenty-eight rats were randomly divided into four equal groups: group 1 (Sham), group 2 (control), group 3 (topical treatment), and group 4 (topical and systemic treatment). In groups 2, 3, and 4, acetic acid-induced colitis model was created. Normal saline to group 2, topical MB to group 3, and topical and systemic MB to group 4 were given. Results: The levels of hydroxyproline were lower in the treatment groups than in the control group (p=0.017 for group 3 and p=0.004 for group 4). There was no difference between groups according to the TNF- alpha levels. The results of macroscopic scores were significantly lower in treatment groups (group 3-4) than In the control group (group 2) (p=0.005 for group 3 and p=0.002 for group 4). There was a significant difference between the treatment groups and the control group according to the epithelial loss and inflammatory infiltrate (p=0.022 for group 3, p=0.026 for group 4 for both histopathological values). Discussion: MB ameliorates colonic injury in acetic acid-induced colitis model This effect of MB was observed both locally and with local + systemic administration