Flavonoid Accumulation Behavior in Response to the Abiotic Stress: Can a Uniform Mechanism Be Illustrated for All Plants?

This review concentrates on two aspects of how total flavonoid content and individual flavonoid compounds change with the perception of environmental stress and the subsequent changes in those metabolites after post-harvest conditions are of the main points of the study. Hereby, along with this study, the flavonoid synthesis or their accumulation with their importance in plants and then in humans is briefly described. According to the literature cited herein, it seems that a universal mechanism concerned with flavonoid accumulation in response to the abiotic stress factors cannot be illustrated. Flavonoid accumulation exhibits different reactions to the different stressors. Flavonoid accumulation behavior not only varies depending on the developmental stage, species and even cultivars of the same species but also post-harvest processes

Akademisyenlerin Adalet ve Etik Algılarının Örgütsel Adanmışlıklarına Etkisi

Nedensel tarama modeli kullanılarak yapılan bu araştırmanın amacı, Uşak Üniversitesi bünyesinde çalışan akademisyenlerin adalet ve etik algılarının örgütsel bazda adanmışlıklarını etkileme düzeyini belirlemeye yöneliktir. Araştırmanın evrenini 2012-2013 yılı güz yarıyılında Uşak Üniversitesinde çalışan 365 akademik personel oluşturmaktadır. Araştırmanın örneklemi ise evren içinden basit tesadüfi örnekleme yöntemi ile seçilen 181 katılımcıdan oluşmaktadır. Araştırmanın verileri, akademisyenlerin adalet algılarını, etik algılarını ve adanmışlık düzeylerini belirleyebilmek amacıyla 3 farklı ölçme aracı kullanılmak suretiyle toplanmıştır. Toplanan veriler betimsel istatistikler, faktör analizi ve regresyon analizine tabi tutulmuştur. Elde edilen bulgular, adalet algısı kavramı içerisinde yer alan boyutlardan dağıtım adaletinin ve etik algısının akademik personelin adanmışlık düzeyini istatistiksel olarak anlamlı bir biçimde etkilediği yönündedir

Supramolecular Orange-Red- and Yellow-Emitting Ir(III) Complexes with TFSI and PF6 Counteranions and Production of LEC Devices

A series of orange-red- and yellow-emitting Ir(III) complexes [Ir(CN)(2)(NN)][PF6]/[TFSI], where CN = 2-phenylpyridine (ppy) (a), NN = 4,4'-bis(4-fluorophenyl)-2,2'-bipyridine (Fpbpy) (1), and NN = 4,4'-dimethyl-2,2'-bipyridine (dmbpy) (3), are synthesized. The electrochemical and photophysical properties of the complexes [Ir(ppy)(2)(Fpbpy)][PF6] (1aPF(6)), [Ir(ppy)(2)(Fpbpy) [TFSI] (1aTFSI), [Ir(ppy)(2)(dmbpy)] - [PF6] (3aPF(6)), and [Ir(ppy)(2)(dmbpy)][TFSI] (3aTFSI) are studied particularly to check their suitability in light-emitting electrochemical cells (LECs). All complexes show aggregationinduced phosphorescent emission (AIPE) due to strong intramolecular pi-pi interactions between the adjacent ppy ligands that is detected with single-crystal X-ray diffraction. Therefore, these complexes exhibit the highest photoluminescence efficiency in the solid phase. Furthermore, the relationship between the experimental results and time-dependent density functional theory (TDDFT) calculations of 1aTFSI and 3aTFSI complexes is examined. The effects of TFSI and PF6 counteranions as well as methyl- and fluorophenyl-substituted bpy ligand on LEC device performances are investigated. LEC devices with 1aTFSI complex show the highest efficiency. The resonance effect of the TFSI anion is believed to result in the effective accumulation of ions through electrode interface. In particular, the LEC device with 1aTFSI was subjected to consecutive reverse bias applied every 5 min. Therefore, the effect of charge mobility and ion distribution in the device was interpreted. The maximum brightness, luminous efficiency, power efficiency, and external quantum efficiency values are 10109 cd/m(2), 3.40 cd/A, 1.26 lm/W, and 1.71%, respectively. According to the first reverse bias application, there is about 7-fold increase in brightness and power efficiency at the end of 30 min. The turn-on time is decreased from 69.2 to 24 s