AN INVESTIGATION INTO PRE-SERVICE TEACHERS' MOTIVATION TOWARDS RECYCLING BEHAVIORS

The aim of the present study is to analyze pre-service teachers' motivations towards recycling behavior. The survey model was adopted and the sample comprised 157 pre-service teachers studying at various teaching departments of Gazi University. "Motivation towards Recycling Behaviors Scale", developed by the researcher was used as the data collection instrument. The scale which was analyzed with regard to reliability and validity comprises 19 items and four dimensions: internal motivation, external motivation, lack of motivation and social impact. The collected data were analyzed by means of SPSS 18 and LISREL 8.7; t-test, ANOVA and multiple-regression were performed. As a result of the study, it was found out that pre-service teachers' motivation towards the recycling behavior varied between medium and high levels; following environmental magazines and recycling behavior frequency variables are significant determinants of motivation towards recycling behavior, and the variables of recycling behavior frequency and following environmental magazines are significant predictors of recycling behavior.  Article visualizations

A Multi-Objective Decision Support Model for the Turkish Armed Forces Personnel Assignment System

The Turkish Armed Forces (TAF) assign more than 25,000 active duty personnel annually. TAF wants to obtain maximum utilization of its personnel by assigning the right person to the right job at the right time, To accomplish this task, decision-makers and personnel assignment staff should consider conflicting multiple objectives that create the widely known problem called personnel assignment problem . To assist in this complicated task from a quantitative perspective, a preemptive goal programming approach was used to develop an integer programming (IP) model to capture the multiple objectives flexibly and interactively. A realistic size IP problem with random data was tested for computational efficiency and analysis. The mean solution time for different instances of the problem was reasonably small. An application of the methodology in an actual assignment decision support system of any large-scale government or non-government organization has a potential to help decision-makers make better use of their personnel

Diseño, implementación y control de un mecanismo de posicionamiento basado en rueda de reacción

[ES] Se trata de un prototipo de sistema de control de posición angular en el que par aplicado para producir el desplazamiento angular es generado por la aceleración de una ruada de reacción o volante de inercia. Es una versión simplificada del sistema empleado en la orientación de satelites artificiales. El alumno diseñará las piezas que integran el prototipo empleando herramientas de CAD, simulará su comportamiento, de forma realista, empleando Simscape Multibody e implementará el prototipo, empleando Arduino para la tarea de control.[EN] This is a prototype angular position control system in which the torque applied to produce the angular displacement is generated by the acceleration of a reaction wheel or flywheel. It is a simplified version of the system used in the orientation of artificial satellites. The student will design the parts that integrate the prototype using CAD tools, simulate its behavior, in a realistic way, using Simscape Multibody and implement the prototype, using Arduino for the control task.Cimen, O. (2021). Diseño, implementación y control de un mecanismo de posicionamiento basado en rueda de reacción. Universitat Politècnica de València. http://hdl.handle.net/10251/171241TFG

Cognitive-Behavioral Therapy of Obsessive-Compulsive Disorder in Children and Adolescents

While obsessive-compulsive disorder (OCD) is present under the category of anxiety disorders in DSM-IV TR, it is classified under “Obsessive Compulsive Disorder and Related Disorders” in DSM 5. There is no different diagnostic system for children and adolescents. OCD has serious adverse effects on family, school, and social lives of children and adolescents, but adolescents with OCD often hide their symptoms and delay seeking help due to several reasons such as inability to recognize their symptoms as disease manifestations, embarrassment, fear of being stigmatized by other people, and believing that what the experience is transient. The age of onset has significance in terms of the disease progression. Therefore it is very important to detect OCD at its early stage, because the majority of the adult patients develop the disease during childhood or adolescence

IMPACT OF L-ARGININE TRANSPORTATION ON MYELOID-DERIVED SUPPRESSOR CELL FUNCTION

Inflammatory chronic prostatitis/chronic pelvic pain syndrome has been linked to autoimmune inflammation. Likewise, prostatitis has been linked to prostate cancer development and progression. A better understanding of the mechanisms by which inflammation is regulated may provide the foundation for novel approaches to controlling inflammation. Myeloid-derived suppressor cells (MDSC) are a heterogeneous population of immature cells that expand during benign and cancer-associated inflammation. MDSC are characterized by their ability to potently inhibit T cell responses. Therefore, by dampening inflammation, MDSC benefit autoimmune diseases. Instead, they aggravate cancer by blocking antitumor immune responses. Identification of mechanisms underlying MDSC activities can enable the development of strategies to modify MDSC function in disease. Thus, in this study we investigated the mechanisms that regulate MDSC functions. Using murine models of prostatitis and cancer, we identified two novel pathways, p38 and p53 signaling, that are involved in MDSC functional activity and differentiation capacity, respectively. We showed that p38-MAPK pathway is involved in the regulation of MDSC-mediated immunoregulatory processes such that inhibition of p38 diminished MDSC expansion at the inflamed prostate, leading to greater numbers of T cells. Furthermore, inhibition of p38 reduced Nos2 expression and abolished MDSC suppressor activity. Our studies also demonstrated that the in vitro differentiation capacity of MDSC is restricted to cells at the peripheral sites. Tumor site monocytic-MDSC lacked the ability to differentiate into other cells types such as osteoclasts and granulocytic-MDSC, whereas the bone marrow and spleen counterparts could form both cell types. Notably, we identified p53 as a critical regulator of MDSC differentiation. Induction of p53 signaling elevated the differentiation of the bone marrow MDSC into granulocytic cell types. A well-established mechanism for MDSC suppressive activity is the metabolism of L-Arginine (L-Arg) by Arginase 1 (ARG1) and nitric oxide synthase 2 (NOS2). Therefore, we hypothesized that restricting MDSC uptake of L-Arg is a critical control point to modulate their suppressor activity. To this end, we have identified the mechanisms by which extracellular L-Arg is transported into MDSC. We have shown that cationic amino acid transporter 2 (Cat2) expression is induced in MDSC at the inflammatory sites in parallel to Arg1 and Nos2 expression. CAT2 acts as an important regulator of MDSC suppressive function. MDSC that lack CAT2 have reduced capacity to suppress T cell responses both ex vivo and in vivo, as evidenced by increased T cell expansion in prostatitis and decreased tumor growth in cancer models. The abrogation of suppressive function is due to low intracellular L-Arginine levels, which leads to the impaired ability of NOS2 to catalyze L-Arginine metabolic processes. In summary, here we identify 3 components that regulate MDSC: L-Arg transportation through CAT2, p38-MAPK signaling and p53 signaling. CAT2 and p38 are critical regulators of MDSC suppressive function and p53 acts as an inducer of MDSC differentiation. Targeting of these molecules can be utilized as a strategy to modulate MDSC function in disease

Rootstock Breeding for Abiotic Stress Tolerance in Citrus

Citrus species are the most widely produced fruit crops in the world. Citrus fruits are mainly produced in coastal areas in several countries as well as Mediterranean region, and production in these regions is affected by both biotic and abiotic stresses, including drought, extreme temperature, salinity, citrus canker, citrus tristeza virus, citrus greening, and others. The use of rootstocks in fruit production includes not only stronger resistance against pathogens but also a higher tolerance to abiotic stress conditions such as salinity, heavy metals, nutrient stress, water stress, and alkalinity. There is extensive genetic diversity in citrus which provides several materials to be used as rootstocks against abiotic stress. In this work, we tried to provide an overview of the abiotic stresses in citrus by combining literature with our studies, role of citrus rootstocks commercially used against abiotic stresses and rootstock breeding in citrus

Effect of solarization with fresh chicken manure on verticillium wilt (Verticillium dahliae Klebb) and yield in eggplant

The present study was carried out to evaluate the effect of reducing wilt disease through the medium of fresh chicken manure (FCM) mixed with soil before solarized and then artificial Verticillium dahliae (V.d) inoculation on yield of eggplant (Solanum melongena L.) under field conditions. According to the splitplot design, solarization of main plots, sub-plots with fresh chicken manure and V dahliae inoculation were established as a mini parcel in experiment with three replications. During solarization, the average temperature values were ensured by means of increasing the fresh chicken manure per unit area recorded 24 times per day (24 h) at intervals of one week. Among the 6 applications form, the highest average temperature was obtained at “12 kg FCM m-2 +solarization” application for soil surface, 10, 20 and 30 cm depth. There was increasing 18°C, a temperature according to control (no FCM), and this difference decreased with increasing soil depth, which was calculated as 8°C at 30 cm depth soil. During the day, the highest temperature values were obtained in the middle of the day on the ground, and underground measurements were performed at night.Keywords: Soil solarization, fresh chicken manure, Verticillium dahliae, eggplant, yiel

What's New in Arrhythmogenic Cardiomyopathies.

Arrhythmogenic Cardiomyopathy (ACM) is a hereditary cardiomyopathy often presenting with sudden cardiac death (SCD) in young athletic individuals [...]

Effect of solarization and vesicular arbuscular mychorrizal on weed density and yield of lettuce (Lactuca sativa L.) in autumn season

This study was conducted on trial field of Faculty of Agriculture, Dicle University, Diyarbakir, Turkey in 2007 growing season. The experiment established on a loamy- clay soil with the seedlings of Yedikulelettuce (Lactuca sativa L.) infected by Vesicular Arbuscular Mychorrizal (VAM) fungus, Glomus intraradices. The goal was to increase the yield and quality in lettuce production. The VAM infected and disenfected lettuce seedlings propagated in greenhouse conditions were planted by the split-plot designs-random model. The study was conducted as the main plot applied solarization and nonsolarization and subplot with VAM and without VAM which resulted in four repetitions. The solarized field had an increased soil temperature: the increase in the temperature was 11°C in 5 cm depth, 8°C in 20 cm and 5°C in 30 cm. This situation continued to the end of the growth season and also inhibited the germination of weed plants. In the solarized area, the plant height, plant crown-width and yield showed significant increase during the vegetative season of 45 days long. The data was significant for three growth factors. In solarized area, the average weight of lettuce was obtained to be 138.85 g but in control parcel the average weight was 30.85 g. The increases in VAM parcel for three growth factors were significant. But the interaction between solarization and VAM was found non significant. To determine VAM before testing in laboratory, VAM dutied like a bridge from donor lettuce to receiver wildmustard (Sinapsis arvensis L.) as observed in the experiment because mustrad has no symbiosis life with this fungus. Also the laboratory findings supported this; the number of spores, number of VAM infected and infection rate were higher both in main parcel of solarized and in the subplot parcel planted with VAM seedlings than the nonsolarized parcel and non VAM seedlings. The results for both criteria were significant in solarization and VAM application. But the interaction with VAM andsolarization was insignificant. As a result, one can note that the VAM inoculation after solarization application is beneficial for growing lettuce especially in the fall of season

Assessment of Turkish junior male physicians’ exposure to mobbing behavior

Aim To determine the extent of Turkish junior male physicians’ exposure to mobbing behavior and its correlation with physicians’ characteristics. Methods The study included physicians recruited for compulsory military service in April 2009. No sampling method was used, questionnaires were delivered to all physicians, and 278 of 292 (95%) questionnaires were returned. We used Leymann Inventory of Psychological Terror including 45 items for data collection and structural equation model for data analysis. Results A total of 87.7% of physicians experienced mobbing behavior. Physicians who worked more than 40 hours a week, single physicians, physicians working in university hospitals and private hospitals, and physicians who did not have occupational commitment were more exposed to mobbing (P < 0.05). Mobbing was not associated with specialty status, service period, age, and personality variables (P > 0.05). All goodness-of- fit indices of the model were acceptable (χ2 = 1.449, normed fit index = 0.955, Tucker Lewis index = 0.980, comparative fit index = 0.985, and root mean square error of approximation = 0.040). Conclusions Workplace mobbing is a critical problem for junior male physicians in Turkey. We suggest an introduction of a reporting system and education activities for physicians in high-risk groups