Foundations of self-progressive choice models

Consider a population of agents whose choice behaviors are partially comparable according to given primitive orderings. The set of choice functions admissible in the population specifies a choice model. A choice model is self-progressive if any aggregate choice behavior consistent with the model is uniquely representable as a probability distribution over admissible choice functions that are comparable. We establish an equivalence between self-progressive choice models and (i) well-known algebraic structures called lattices; (ii) the maximizers of supermodular functions over a specific domain of choice functions. We extend our analysis to universally self-progressive choice models which render unique orderly representations independent of primitive orderings

Mediación múltiple de la soledad y las afecta negativas en la relación entre la ansiedad social de los adolescentes y los síntomas depresivos.

The current research aims to investigate the multiple mediation of loneliness and negative emotions in the relationship between adolescents’ social anxiety and depressive symptoms. Study participants, selected through convenience sampling, consisted of a total of 263 students, including 155 females (59%) and 108 males (41%), attending various high schools in a city in the mid-Black Sea Region. Participant students’ ages ranged between 14 and 18, with an average age of 15.05 (SD=.90). Data for the current study were collected through the Social Anxiety Scale for Adolescents, UCLA Loneliness Scale – Short Form, Positive and Negative Emotion Scale for Adolescents, Depression Scale for Children, and Personal Information Form. Current research data were analyzed through descriptive statistics, Pearson correlation coefficient, and an approach based on Ordinary Least Squares Regression, and the Bootstrap Method. The current study findings indicated that loneliness and negative emotions, both separately and together, mediated the relationship between social anxiety and depressive symptoms. No significant difference was found in the comparison conducted to reveal the more powerful mediating variable in terms of mediation effect. In addition, it was found that the model overall was significant and it explained 44% of the total variance in depressive symptoms. A discussion about and interpretation of findings obtained in the current study were included along with suggestions for relevant practitioners.La presente investigación tiene como objetivo investigar la mediación múltiple de la soledad y de los afectos negativos en la relación entre la ansiedad social y los síntomas depresivos de los adolescentes. Los participantes del estudio, seleccionados mediante muestreo por conveniencia, fueron un total de 263 estudiantes, incluyendo a 155 mujeres (59%) y 108 hombres (41%), que asistían a varias centros de educación secundaria en una ciudad de la región del Mar Negro. La edad de alumnos participantes osciló entre 14 y 18 años, con una edad promedio de 15.05 (SD = 0.90). Los datos para este estudio fueron recolectados de la Escala de Ansiedad Social para Adolescentes, UCLA Escala de Soledad - Abreviado, Registro de afecto positivo y negativo para Adolescentes, Escala de Depresión para Niños y formulario de información personal. Los datos se analizaron mediante estadística descriptiva, coeficiente de correlación de Pearson, y un enfoque basado en regresión de mínimos cuadrados ordinarios, y el método de Bootstrap. Los hallazgos del estudio indican que la soledad y los afectos negativos, tanto por separado como en conjunto, median en la relación entre la ansiedad social y síntomas depresivos. No se encontraron diferencias significativas en la comparación llevada a cabo para encontrar variables mediadoras más potentes en términos de efecto de la mediación. Además, se encontró que el modelo globalmente fue significativo y explicó el 44% de la varianza total en los síntomas depresivos.  Se incluye una discusión sobre la interpretación de los resultados obtenidos en el presente estudio junto con sugerencias para los profesionales pertinentes

COMMITMENT TO TEAM GOALS IN SPORT: ADAPTATION OF GOAL COMMITMENT SCALE TO SPORT FIELD

The aim of this study was to revise Goal Commitment Scale, developed by Hollenbeck, Williams and Klein (1989) with 9 items, revised by Klein, Wesson, Hollenbeck and Wright (2001) to 5 items and adapted to Turkish by Şenel and Yıldız (2016) to measure commitment to team goals and analyze validation and reliability in a sample including athletes. The Turkish version of the 5-item Goal Commitment Scale was revised by taking expert opinion to measure commitment to team goals. The Revised form was sent to at least 2-year licensed athletes on the Internet, and data was collected from 400 athletes. The data were examined and 25 improper data were excluded. Collected data were analyzed in SPSS by using Exploratory Factor Analysis and in AMOS (Analysis of Moment Structure) program by using Confirmatory Factor Analysis. Results showed that the revised commitment scale that measures commitment to team goals could be used for samples including athletes.   Article visualizations

An improved oscillation theorem for nonlinear differential equations of advanced type

summary:This paper deals with the oscillatory solutions of the first order nonlinear advanced differential equation. The aim of the present paper is to obtain an oscillation condition for this equation. This result is new and improves and correlates many of the well-known oscillation criteria that were in the literature. Finally, an example is given to illustrate the main result

Prevention of Coronary Artery Disease through Diet

Our understanding of the potential role of diet in the prevention and risk reduction of coronary artery disease (CAD) has evolved in the past 100 years. Data on trends in food consumption and ecological studies are the early evidences that showed associations between prevalence and fat intake across and within countries. The last 50 years of epidemiology and clinical trials have focused on the efficiency of nutritional interventions in the prevention of CAD

The effects of pre-harvest napthalene acetic acid and aminoethoxyvinylglycine treatments on storage performance of ‘ Ak Sakı’ apple cultivar grown in Erzincan conditions

This study was carried out to determine the effects of pre-harvest aminoethoxyvinylglycine (AVG, 150, 225 ve 300 mg/L) and naphthaleneacetic acid (NAA, 20 mg/L) treatments in different doses on storage performance of ‘Ak Sakı’ apple cultivar (Malus domestica Borkh.) in 2012. The changes on some fruit quality parameters were measured at 2±1 oC temperature and with 90±5 % relative humidity at 45 days interval during storage. The lowest weight loss was obtained from 300 mg/L AVG treated fruits during the storage. In the all analysis date, the highest L* value was obtained from 300 mg/L AVG treated fruits, and the lowest hue angle value was reported from the fruits of control treatment. The flesh firmness was determined that the best kept in the 225 and 300 mg/L AVG treated fruits during the storage. The flesh firmness significantly reduced with NAA treatment at the end of storage. The highest soluble solids concentration (SSC) was obtain from control fruit during the storage, whereas the lowest SSC was observed in fruit treated with 300 mg/L AVG. In the all analysis date, the highest titratable acidity was obtained in fruits treated with 225 and 300 mg/L AVG. The starch degradation was delayed with AVG treatments

CRISPR-Of-Things%253A Applications and Challenges of the Most Popular Gene Editing Tool in the Fields of Health, Agriculture and Environment

Almost all cells of any living organism contain DNA, a hereditary molecule that passes from generation to generation during reproduction. The term quot%253Bgenomequot%253B generally refers to the total DNA sequences in an organism. The genome consists of DNA sequences called gene, which plays a role in the basic biological processes involved in many phenotypic and genotypic characteristics, such as performing cellular functions, controlling numbers and species, regulating energy production, metabolism, and combating diseases. Gene editing is the process of pre-designing and modifying a particular DNA sequence in a targeted gene. The most widely used technique is CRISPR-Cas technology. For this purpose, the DNA helix is ​​cut at a certain point, to form a double-strand break (DSB), and naturally existing cellular repair mechanisms repair the DSB. Modes of the repair mechanisms may affect the gene function. When DSB is formed, gene editing techniques can be applied to remove, insert, or replace a newly modified sequence using a synthetic donor template DNA. In developed and developing countries, CRISPR-Cas studies in addition to research and development studies are rapidly increasing. In addition to increasing population, changing weather conditions, declining farmland, increasing biotic and abiotic stresses are other important barriers to agricultural production, food, and feed supply. In this report, CRISPR-Cas applications are introduced in detail from the studies that carried out gene modifications in the fields of health, animals, plants, microorganisms, and food supply. Besides, these technologies and applications have been examined in terms of world biosafety legislation and the scientific risk assessment of the products developed using the CRISPR-Cas technique

Doxycycline plus streptomycin versus ciprofloxacin plus rifampicin in spinal brucellosis [ISRCTN31053647]

Background: The optimal treatment regimen and duration of the therapy is still controversial in spinal brucellosis. The aim of this study is to compare the efficacy, adverse drug reactions, complications and cost of ciprofloxacin plus rifampicin versus doxycycline plus streptomycin in the treatment of spinal brucellosis

Evaluation of the Oxidative Effect of Long-Term Repetitive Hyperbaric Oxygen Exposures on Different Brain Regions of Rats

Hyperbaric oxygen (HBO2) exposure affects both oxidative and antioxidant systems. This effect is positively correlated with the exposure time and duration of the treatment. The present study aims enlightening the relation of HBO2 with oxidative/antioxidant systems when administered in a prolonged and repetitive manner in brain tissues of rats. Sixty rats were divided into 6 study (n = 8 for each) and 1 control (n = 12) group. Rats in the study groups were daily exposed 90-min HBO2 sessions at 2.8 ATA for 5, 10, 15, 20, 30 and 40 days. One day after the last session, animals were sacrificed; their whole brain tissue was harvested and dissected into three different regions as the outer grey matter (cortex), the inner white matter and cerebellum. Levels of lipid peroxidation and protein oxidation and activities of superoxide dismutase and glutathione peroxidase were measured in these tissues. Malondialdehyde, carbonylated protein and glutathione peroxidase levels were found to be insignificantly increased at different time-points in the cerebral cortex, inner white matter and cerebellum, respectively. These comparable results provide evidence for the safety of HBO treatments and/or successful adaptive mechanisms at least in the brain tissue of rats, even when administered for longer periods