Photonuclear reactions with Zinc: A case for clinical linacs

The use of bremsstrahlung photons produced by a linac to induce photonuclear reactions is wide spread. However, using a clinical linac to produce the photons is a new concept. We aimed to induce photonuclear reactions on zinc isotopes and measure the subsequent transition energies and half-lives. For this purpose, a bremsstrahlung photon beam of 18 MeV endpoint energy produced by the Philips SLI-25 linac has been used. The subsequent decay has been measured with a well-shielded single HPGe detector. The results obtained for transition energies are in good agreement with the literature data and in many cases surpass these in accuracy. For the half-lives, we are in agreement with the literature data, but do not achieve their precision. The obtained accuracy for the transition energies show what is achievable in an experiment such as ours. We demonstrate the usefulness and benefits of employing clinical linacs for nuclear physics experiments

The Analysis of Collective Efficacy Perceptions of Athletes Playing in Table Tennis Leagues In Turkey in Terms of Some Variables,

In team sports, trust and the belief in being successful (collective efficacy) among the athletes of team sports can be effective on performance. In the meantime, analyses of the factors that can be an effective factor on perceptions of collective efficacy become more of an issue in terms of bringing a different perspective to the subject. Therefore, the purpose here is to research the level of collective efficacy of athletes playing in table tennis leagues in Turkey and the reasons affecting it. Target population of the study is composed of 597 players playing in table tennis leagues of Turkey; its sample constitutes randomly selected 224 table tennis players. A two-part questionnaire containing questions related to the demographic features and collective conscious levels was applied to the participants. The questionnaire used in the study was previously used in another study and its reliability was provided. Data of the questionnaire obtained from the participants were analyzed with PASW Statistic 18 package program. Following the reliability analysis, Cronbach’s Alpha coefficient was found as 0.90. As directed to the purpose of the study, Pearson correlation coefficient was used in analysis of data and Kruskal Wallis test was applied in comparisons with three or more groups. Moreover, Chi-Square test was used for independence research. Regression analyses were carried out with the purpose of determining to what extent the variables affect each other. In line with the researches conducted and data obtained, significant relations (<0.05) were found between the participants’ age, period of being registered athletics, duration of playing in the same team and their collective efficacy perceptions. The more these variables increase, the more the belief in the team and skills of team players increase in a positive way. In summary, it was concluded that the variables of age,sex, period of being registered athletics, duration of playing in the same team and total number of athletes are the factors that are effective on collective efficacy perception and it was found that 82% of the participants are of the opinion that their teams have the capacity to show good performance

Yükseköğretimde Spor Eğitimi Veren Kurumlarda Görev Yapan Akademik Personelin Elektronik Ticaret Hakkındaki Görüşleri,

In this study the views of the academic personnel working in institutions giving sports training at higher education level in Turkey about electronic trade has been researched. Sample of the study is constituted by 214 academic personnel working in institutions giving sports training at higher education level in Turkey. Validity and reliability study improved by Sevindik (16) was made to determine the views of the participants and “e-Trade User View Form” was used. SPSS 11.5 package program was used in assessment of the questionnaires and t-test, Variance Analysis (ANOVA), Kruskal Wallis Test and LSD test analyses were made. As a result it was observed that, 86% of the academic personnel working in institutions giving sports training at higher education level in Turkey expressed the importance of electronic trade, 81,3% of them expressed that they used electronic banking system and 59,9% of them emphasized that electronic trade eliminates the traditional trade. Furthermore it was determined that there was a significant difference between the views of the participants towards electronic trade according to the variants of sex and education

Vİews Of The Teachers And Administrators Of The High School Of Fine Arts And Sports On Diversity Management,

This study was conducted for the purpose of determining the views on management of diversity of the administrators and the teachers who work in Fine Arts and Sports High Schools. The sample group of the study consisted of 12 administrators and 70 teachers working in the fine Arts and Sports High Schools in province of Elazig, Usak, Trabzon, Corum and Eskisehir. In order to determine the views of the sample group, a scale developed by Balay and Saglam (2004) was used and the data obtained was analyzed in the SPSS package program. In this study it was determined that managers didn’t discriminate according to sexes, that there was a decrease in views of the managers and teachers that personal attitudes and behaviors and the administrative practices and principles were managed positively with their growing ages and that there was no difference in views of the study group regarding the diversity management in their schools according to their education status, vocational superiority, total service periods in management, service status and vocational field variants. In conclusion, it can be concluded that the differences between the administrators and the teachers in these educational institutions have a positive impact on the direction of improving the quality of education and that the employees’ beliefs, origins, cultural, etc. differences provide an advantage for these institutions and finally there were no discrimination in their administrative concepts

Case Report A Rare Cause of Urachal Adenocarcinoma: Urachal Diverticle

Urachus is the remnant of the embryologic allantois and the fetal bladder, extending form the bladder roof to the umbilicus. It degenerates in the prenatal period into a tissue band known as the median umbilical ligament. Incomplete degeneration may lead to urachal diverticle development. It is difficult to diagnose unless it is considered in differential diagnosis and imaging modalities are employed. This paper describes a patient treated with partial cystectomy for urachal diverticle, and the pathologic examination revealed urachal adenocarcinoma

Use of Spectroscopic Techniques to Monitor Changes in Food Quality during Application of Natural Preservatives: A Review

Consumer demand for food of high quality has driven research for alternative methods of food preservation on the one hand, and the development of new and rapid quality assessment techniques on the other hand. Recently, there has been a growing need and interest in healthier food products, which has led to an increased interest in natural preservatives, such as essential oils, plant extracts, and edible films and coatings. Several studies have shown the potential of using biopreservation, natural antimicrobials, and antioxidant agents in place of other processing and preservation techniques (e.g., thermal and non-thermal treatments, freezing, or synthetic chemicals). Changes in food quality induced by the application of natural preservatives have been commonly evaluated using a range of traditional methods, including microbiology, sensory, and physicochemical measurements. Several spectroscopic techniques have been proposed as promising alternatives to the traditional time- consuming and destructive methods. This review will provide an overview of recent studies and highlight the potential of spectroscopic techniques to evaluate quality changes in food products following the application of natural preservatives

The Protection of Animals through Human Rights. The Case-Law of the European Court of Human Rights

The chapter discusses the potential of a human rights framework to contribute to the growth and development of global animal law. It takes as example the jurisprudence of the European Court of Human Rights, and examine the major trends in the Court’s judgments and admissibility decisions that directly or indirectly concern the rights or welfare of animals. It is concluded that the Court is not indifferent to the welfare of animals, but that animal welfare is instrumentalised: it is understood not as a good in itself, but is instead valued for its implications for human welfare and rights. The chapter then considers the obstacles that the anthropocentrism of the human rights idea and the instrumentalisation of animal concerns present to the use of human rights frameworks to further the development of global animal law, as well as the opportunities that exist in the meeting of these paradigms. It concludes that although the telos of human rights law is different from that of animal law, nevertheless there exist many overlapping concerns within which mutually beneficial interactions are possible

Classification of the Mediterranean lowland to submontane pine forest vegetation

Vegetation SurveyAim: Vegetation types of Mediterranean thermophilous pine forests dominated by Pinus brutia, Pinus halepensis, Pinus pinaster and Pinus pinea were studied in various areas. However, a comprehensive formal vegetation classification of these forests based on a detailed data analysis has never been developed. Our aim is to provide the first broad-scale classification of these pine forests based on a large data set of vegetation plots. Location: Southern Europe, North Africa, Levant, Anatolia, Crimea and the Caucasus. Methods: We prepared a data set of European and Mediterranean pine forest vegetation plots. We selected 7,277 plots dominated by the cold-sensitive Mediterranean pine species Pinus brutia, Pinus halepensis, Pinus pinaster and Pinus pinea. We classified these plots using TWINSPAN, interpreted the ecologically and biogeographically homogeneous TWINSPAN clusters as alliances, and developed an expert system for automatic vegetation classification at the class, order and alliance levels. Results: We described Pinetea halepensis as a new class for the Mediterranean lowland to submontane pine forests, included in the existing Pinetalia halepensis order, and distinguished 12 alliances of native thermophilous pine forests, including four newly described and three informal groups merging supposedly native stands and old-established plantations. The main gradients in species composition reflect elevational vegetation belts and the west–east, and partly north–south, biogeographical differences. Both temperature and precipitation seasonality co-vary with these gradients. Conclusions: We provide the first formal classification at the order and alliance levels for all the Mediterranean thermophilous pine forests based on vegetation-plot data. This classification includes traditional syntaxa, which have been critically revised, and a new class and four new alliances. We also outline a methodological workflow that might be useful for other vegetation classification syntheses. The expert system, which is jointly based on pine dominance and species composition, is a tool for applying this classification in research and nature conservation survey, monitoring and managementinfo:eu-repo/semantics/publishedVersio