inappropriate feeding grounds for many common diseases such as diabetes, cancer and cardiovascular diseases. this study was conducted to determine knowledge, attitude and nutrition and its relationship with body mass index (bmi) was to allow students using data and recognize the status quo and in order to increase awareness, attitude and nutrition of students and strengthen the indicators and t...

abstract background: right ventricular myocardial performance index (rvmpi) is a doppler–derived parameter of non-geometrical ventricular function that measures both systolic and diastolic functions of the right ventricle. the aim of this study is to compare prognostic value of rvmpi with global rv function in patients undergoing coronary artery bypass graft (cabg). methods: in a longitudinal s...

introduction: emergency department performance index (epi) greatly influences the function of other hospital’s units and also patient satisfaction. recently, the iranian ministry of health has defined specific national epi containing five indexes. in the present study, the performance indexes of emergency department (ed) in one educational hospital has been assessed before and after establishme...

Seven-day-old dark-grown bean leaves were greened under continuous light. The amount of chlorophyll, the ratio of chlorophyll a to chlorophyll b, the O(2) evolving capacity and the primary photochemical activities of Photosystem I and Photosystem II were measured on the leaves after various times of greening. The primary photochemical activities were measured as the photo-oxidation of P(700), t...

The sunflower is considered one of the four most important oilseeds globally. study was conducted on 16 hybrids in field conditions to link photosynthesis parameters with yield components using chlorophyll a fluorescence (ChlF), content, leaf temperature and agronomic traits. By analysing ChlF flowering stage hybrids, statistically significant difference found between studied for all except pho...

In some studies, tissues from plants that have been genetically transformed to overproduce antioxidant enzymes sustain less damage when abruptly exposed to short-term chilling in the laboratory. However, few studies have examined the performance of transgenic plants during longer-term growth under chilling conditions. We compared growth of transgenic cotton that overproduces glutathione reducta...

The mustard variety Felicia was used to analyze the response and compensation effects of growth physiology under drought stress rehydration conditions at seedling stage. seedlings were exposed different levels simulated by polyethylene glycol (PEG). parameters, fresh weight, chlorophyll fluorescence, antioxidant system measured. results showed that inhibited roots shoots reduced performance pho...

During germination at low temperatures, seeds rich in proteins may experience damage to their cytoplasmic membranes. The study aimed investigate the influence of temperature on growth, development, and yield four cultivars soybean, a typical thermophilic species. were germinated 10, 15, 25 °C dark. After 48 h, one part was analyzed for amylase dehydrogenase activity, cell membrane permeability,...

Photosynthetic organisms must regulate photosystem stoichiometry (photosystem I-to-photosystem II ratio) under various light conditions. Transcriptional regulation of the psaAB genes is a critical process for this photoacclimation in cyanobacteria. In the course of our screening of transcriptional regulators in the cyanobacterium Synechocystis sp. PCC 6803, we found that chlorophyll accumulatio...

Photosystem II is a multisubunit membrane complex which performs the water oxidation process in the higher plants. Core dimers and monomers of photosystem II have been isolated from thylakoid membranes by sucrose density gradient centrifugation. Lipids extracted from different photosystem II-enriched fractions obtained from spinach thylakoids have been analysed by thin layer chromatography. Car...