d=3 random field behavior near percolation

The highly diluted antiferromagnet Mn(0.35)Zn(0.65)F2 has been investigated by neutron scattering for H>0. A low-temperature (T<11K), low-field (H<1T) pseudophase transition boundary separates a partially antiferromagnetically ordered phase from the paramagnetic one. For 1<H<7T at low temperatures, a region of antiferromagnetic order is field induced but is not enclosed within a transition boundary.Comment: 9 pages, 4 figure

Food-intake regulation during stress by the hypothalamo-pituitary-adrenal axis

The prevalence of obesity is increasing worldwide with serious consequences such as diabetes mellitus type 2 and cardiovascular diseases. Emotional stress is considered to be one of the main reasons of obesity development in humans. However, there are some contradictory results, which should be addressed. First of all stress induces anorexia, but not overeating in laboratory animals. Glucocorticoids, the effector molecules of the hypothalamo-pituitary-adrenocortical (HPA) axis stimulate and stress inhibits food intake. It is also not clear if stress is diabetogenic or an antidiabetogenic factor. The review will discusses these issues and the involvement of the whole HPA axis and its separate molecules (glucocorticoids, adrenocorticotropin, corticotropin-releasing hormone) in food intake regulation under stress

ABOUT FEATURES OF MUTATION APPLICATION IN A MODIFIED OPERATOR GENETIC ALGORITHM

Genetic algorithm is a method of optimization based on the concepts of natural selection and genetics. Genetic algorithms are used in software development, in artificial intelligence systems, a wide range of optimization problems and in other fields of knowledge.One of the important issues in the theory of genetic algorithms and their modified versions is the search for the best balance between performance and accuracy. The most difficult in this sense are problems where the fitness function in the search field has many local extremes and one global or several global extremes that coincide.The effectiveness of the genetic algorithm depends on various factors, such as the successful creation of the primary population. Also in the theory of genetic algorithms, recombination methods play an important role to obtain a better population of offspring. The aim of this work is to study some types of mutations using a modified genetic algorithm to find the minimum function of one variable.The article presents the results of research and analysis of the impact of some mutation procedures. Namely, the effect of mutation on the speed of achieving the solution of the problem of finding the global extremum of a function of one variable. For which a modified genetic algorithm is used, where the operators of the "generalized crossover" are stochastic matricesGenetic algorithm is a method of optimization based on the concepts of natural selection and genetics. Genetic algorithms are used in software development, in artificial intelligence systems, a wide range of optimization problems and in other fields of knowledge.One of the important issues in the theory of genetic algorithms and their modified versions is the search for the best balance between performance and accuracy. The most difficult in this sense are problems where the fitness function in the search field has many local extremes and one global or several global extremes that coincide.The effectiveness of the genetic algorithm depends on various factors, such as the successful creation of the primary population. Also in the theory of genetic algorithms, recombination methods play an important role to obtain a better population of offspring. The aim of this work is to study some types of mutations using a modified genetic algorithm to find the minimum function of one variable.The article presents the results of research and analysis of the impact of some mutation procedures. Namely, the effect of mutation on the speed of achieving the solution of the problem of finding the global extremum of a function of one variable. For which a modified genetic algorithm is used, where the operators of the "generalized crossover" are stochastic matrice

Advanced features of the formation of factors and normalization of carrying capacity of the fleet and its structuring

Розглянута система завдань реалізації цілей костерного судноплавства - досягнення позитивних економічних результатів і торгових портів шляхом нормалізації економічного, організаційного та правового інструментарію управління інвестиційними процесами. Встановлено: в основі збереження пріоритетів лежить принцип стандартизації, який фактично і обмежує входження в регіональний фрахтовий простір судноплавних компаній, які не відповідають поставленим обмеженням

Lifestyle interventions and risk of Type 2 diabetes

Diabetes mellitus is one of the most common chronic diseases in nearly all countries. It is difficult to treat and expensive to manage. The development of type 2 diabetes is strongly related to lifestyle factors, thus it might be a preventable disease. Observational studies and intervention trials have shown that physical activity, weight loss and dietary intake including whole grain, dietary fiber and dietary fat are important in delaying and preventing type 2 diabetes. The aim of this review is to gather current information from epidemiologic and clinical trial studies on dietary and lifestyle practices for reducing the risk of type 2 diabetes. The review focuses on the macro and micronutrients, food items and dietary patterns which have been identified as significant in the prevention and management of type 2 diabetes. Also, the role of physical activity and weight loss are presented

Dietary folate intake and concentration of folate in serum and red blood cell in a group of female university students in Tehran, Iran

Adequate intake of folate has an important role in the prevention of nutritional anemia and other complications in childbearing age women. This study was undertaken to determine dietary folate intake and concentration of folate in serum and red blood cell (RBC) in female students of a medical university in Tehran, the capital of Iran.  In this cross sectional study, 346 female students were randomly selected from students' lists of eight schools at Shahid Beheshti University of Medical Sciences in Tehran, Iran. Those who were interested and eligible participated in this study. For each student, questionnaires about general characteristics were completed. Dietary folate intake was assessed by 3 days food recall questionnaire. These data were analyzed by Food Processor (FP). Folate in serum and RBC were determined by Radio Immunoassay (RIA).  The results showed that mean age and body mass index in these students were 21.4±4.2 yrs and 22.2±3.2 kg/m2, respectively.  Mean of 3 days folate intake was 239.4±101.8 µg/d. The majority of subjects (93%) did not meet the reference dietary intake for folate. Mean serum folate levels in whole population was 7.8±3.6 ng/ml and RBC folate was 249.6±124.9 ng/ml. No correlation was found between folate concentrations in serum and RBC with folate intake from food. The result of this study showed that folate intake of students is very low. Therefore, appropriate intervention is necessary for adequate intake of folate.