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166873

Differential effects of perceptions of equal, favourable and unfavourable autonomy support on educational and well-being outcomes

Ada, Elif Nilay

In this study, we examined whether high-school students experienced optimal educational and well-being outcomes when they perceived that they and their classmates received an equal, rather than unequal, and high amount of autonomy support from teachers. In a prospective study that aimed to predict academic grades and well-being outcomes, surface analyses of polynomial regression equations pointed that perceptions of equal autonomy support were the most optimal in terms of yielding highest levels of need satisfaction, autonomous forms of motivation and happiness with math courses. Additionally, in accordance with tenets of self-determination theory, we demonstrated that effects associated with perceptions of equal autonomy support were mediated by autonomous forms of motivation and psycholo...

166872

The Mediator Role of Sport Competence and Physical Condition in the Motivational Climate and Personal-Social Responsibility in Physical Education

Ada, Elif Nilay | Pehlıvan, Zekai

Abstract This study aimed to separately examine the mediator role of two different variables in the relationship between perceived motivational climate and personal-social responsibility in physical education lessons. A total of 406 students (Mage = 12.91, SD = 1.01), 217 girls (Mage = 12.88, SD = 1.03) and 189 boys (Mage = 12.93, SD = 0.99), from the 6th, 7th, and 8th grades attended the study. In the research, the Learning and Performance Orientations in Physical Education Classes Questionnaire, the Personal-Social Responsibility Questionnaire, and Physical Self-Perception Inventory for Children (physical condition and sport competence) were used. To realize the purpose of the research, the measurement models were first tested using the structural equation model; next, multiple regressio...

Makale2021Sage Open 15 | 0 Erişime Açık
166870

Motivational processes: can perceptions of fairness augment effects of favourable autonomy supportive practices on satisfaction of the basic psychological needs?

Ada, Elif Nilay

Abstract Based on Self-Determination theory and social interaction models of social justice, in this article we examined whether perceptions of fairness catalysed the positive effects autonomy support on motivational and well-being outcomes. The study was conducted in the context of an all-boys school with 302 students, adopting a prospective design. Using surface analysis to estimate the dependent variables to be tested in non-liner regressions, the current research empirically extends social interaction models of distributive justice by testing, for the first time, whether perceptions of fairness can moderate the effects of autonomy supportive practices on satisfaction of psychological needs. The results demonstrated that perceptions of fairness engendered positive effects of favourable ...

Makale2024SN Social Sciences 17 | 0 Erişime Açık
166230

Yemler Bilgisi Yem Teknolojisi ve Balık Besleme

Bilgüven, Murat

Her havuz alanında ya da yetiştirme biriminden elde edilen balık ve dolayısıyla balık yetiştiriciliğinin kârlılığı, büyük ölçüde kullanılan yemin miktarına bağlıdır. Su ürünleri sistemi ne kadar yoğun olursa yemlemenin önemi o kadar fazla olur ve toplam üretim maliyetinde yem maliyetinin payı da o kadar artar. Bilindiği üzere alabalık başta olmak üzere bazı balıkların yetiştiriciliği için akarsu sistemli tesisler kullanılmakta yada sıcaklığın, su bileşiminin ve akıntının dolayısıyla oksijen yoğunluğunun daha iyi olduğu tatlı su ve kıyılarda ise yüzer ağ kafeslerde yetiştiricilik yapılmaktadır. Su ürünleri yetiştiriciliğinin ileri durumda olduğu ülkelerde entansif yetiştiricilik uygulanmakta ve yetiştirme alanlarında birim hacimde maksimum ürün yetiştirilmeye çalışılmaktadır. Bu tür yetişti...

Kitap2002Akademisyen 268 | 7 Erişime Açık
167316

Role of antioxidant defense system and biochemical adaptation on stress tolerance of high mountain and steppe plants

Keleş, Yüksel

Eleven species were collected from Northwest Anatolian mountains (1500–2000 m) and 18 species were collected from the Central Anatolian steppes (850–1000 m) in June 1998 and 1999. In all the species investigated, the water and dry matter percentages and solute contents were measured. The chlorophyll, b-carotene, ascorbate and a-tocopherol contents and catalase (CAT), superoxide dismutase (SOD) andglutathione reductase (GR)enzymeactivities oftheplants werealsodetermined.Thesteppeplantshadlowerwatercontentcomparedwith alpine plants. The chlorophyll contents of the plants investigated did not change with altitude. However, the carotenoid/chlorophyll ratio of alpine plants was found to be significantly higher. The antioxidant/chlorophyll ratio of the trees and shrubs was higher than that of he...

Makale2004Acta Oecologica 35 | 0 Erişime Açık
166703

Wearable Sports Technologies

Ulutaş, Derya Selda Sınar | Acar, Nasuh Evrim

Today, wearable monitoring systems created thanks to technological advances are integrated into the human body and are widely used in many fields from sports to health. These systems, in which multiple disciplines work together simultaneously, provide physiological and biochemical data, enabling the determination of the current situation and the creation of appropriate performance and improvement programs for individuals. In this review study, 23 articles, 4 of which were review articles, published in the Sports Sciences category on the Web of Science database in 2024 were examined using the keywords "wearable technology" and "sports". As a result of the review of these articles, it was determined that 8 articles were not related to the subject of wearable technologies in sports and were r...