Corporate Social Responsibility and Environmental Sustainability Relationship: the Case of Companies in the Marmara Region of Turkey

DergiPark: 517534trakyasobedCorporate Social Responsibility is to ensure their output during theiractivities without harming to the society, to see all environmental actors as apart of their business existence and to prioritize social utility. The aim ofthis study is to investigate the importance and the place of the CorporateSocial Responsibility principles in the provision of a sustainable environment.It has been understood that no study has been conducted to examine therelationship between Corporate Social Responsibility and EnvironmentalSustainability in the literature. For this purpose, a survey was conducted with128 employees from various companies in the Marmara Region. Surveys wereanalyzed using the Structural Equation Model and the results were interpreted.According to the results of the analysis, a positive and strong relationshiphas emerged between Corporate Social Responsibility and EnvironmentalSustainability. In this case, companies with a sense of corporate socialresponsibility and management style succeed in achieving EnvironmentalSustainability.Kurumsal SosyalSorumluluk, işletmelerin faaliyetleri sırasında çıktılarını, topluma zararvermeden sağlaması, tüm çevresel aktörleri işletme varlığının bir parçasıolarak görmesi ve toplumsal faydayı ön plana almasıdır. Yapılan literatür taramasındaKurumsal Sosyal Sorumluluk ve Çevresel Sürdürülebilirlik arasındaki ilişkiyiincelemek için çalışma gerçekleştirilmediği anlaşılmıştır.  Bu çalışmanın amacı, Sürdürülebilir çevreninsağlanmasında Kurumsal Sosyal Sorumluluk ilkelerinin önemi ve yeriniaraştırmaktır. Bu amaçla İstanbul, Kocaeli ve Bursa illerinde bulunan çeşitliişletmelerden 128 personel ile anket yapılmıştır. Anketler, Yapısal EşitlikModeli kullanılarak analiz edilmiş ve sonuçlar yorumlanmıştır. Analizsonuçlarına göre, Kurumsal Sosyal Sorumluluk ve Çevresel Sürdürülebilirlikarasında pozitif ve güçlü bir ilişki çıkmıştır. Bu durumda Kurumsal SosyalSorumluluk anlayışına ve yönetim biçimine sahip işletmeler ÇevreselSürdürülebilirliği sağlamada başarılı olmaktadır

Oxidative stress of crystalline lens in rat menopausal model

Purpose: To evaluate lenticular oxidative stress in rat menopausal models. Methods: Forty Wistar female albino rats were included in this study. A total of thirty rats underwent oophorectomy to generate a menopausal model. Ten rats that did not undergo oophorectomy formed the control group (Group 1). From the rats that underwent oophorectomy, 10 formed the menopause control group (Group 2), 10 were administered a daily injection of methylprednisolone until the end of the study (Group 3), and the remaining 10 rats were administered intraperitoneal streptozocin to induce diabetes mellitus (Group 4). Total oxidant status (TOS), total antioxidant capacity (TAC), and oxidative stress index (OSI) measurements of the crystalline lenses were analyzed. Results: The mean OSI was the lowest in group 1 and highest in group 4. Nevertheless, the difference between the groups was not statistically significant in terms of OSI (p > 0.05). The mean TOS values were similar between the groups (p > 0.05), whereas the mean TAC of group 1 was significantly higher than that of the other groups (p < 0.001). Conclusions: Our results indicate that menopause may not promote cataract formation

SELENIUM SUPPLEMENT AND CYS/MET INDEX IN TARM 92 BARLEY CULTIVAR

Selenium (Se) as essential micronutrient found in foods in the form of organic selenomethionine (SeMet) and selenocysteine (SeCys) in adequate amounts. However, selenite (SeO3 2-) or selenate (SeO4 2-) can be found in inorganic form in very low amounts. Higher plants indicate considerable variations in terms of Se requirement with various effects on plant metabolism and uptake of some nutrients. Barley (Hordeum vulgare L.) is a significant dietary source for this element for humans and animals. In present study, Cys/Met index of Tarm 92 registered barley cultivar subjected to increasing sodium selenate (Na2SeO4) doses (6.25, 12.50, 18.75, 25.00 g ha-1) was investigated. Amino acids were analyzed according to Ion Exchange Liquid Chromatography method by Amino Acid Analyzer AAA 339 M. The experimental soil was analyzed for texture, organic matter, pH, available Phosphorus (P), Nitrogen (N), and Potassium (K). The average Sulfur (S) level in Tarm 92 cultivar was 0.0514 mg 100mg-1. Results revealed significant effects of Se-treatments on grain Cys/Met index at 12.50 g ha-1. Average Cys/Met index remarkably increased to highest level at 12.50 g ha-1. However, at 25 g ha-1, the level (6.98 mg 100mg-1) was closer to that in control (5.10 mg 100mg-1) group. It was concluded in present study that 12.5 g ha-1 selenium treatment was sufficient to increase grain Cys/Met index of Tarm 92 barley cultiva