background: mental disorders such as depression, anxiety and dementia are common in elderly. however, physical activity is suggested to be effective in preventing such aging-related disorders. the aim of this study was to investigate the role of physical activity on mental health in later life. methods: four hundred elderly people were randomly divided into the intervention and control groups. ...

conclusions potent antifungal activity, make this plant an effective replacement treatment for fungal infections or fungal strains that are resistance to synthetic antifungals. results thirty-two components were identified in vitex agnus-castus eo. the main compound was alpha-pinene (19.48%). the total phenolic content of eo was determined as 82.26 ± 5.94 mg gallic acid equivalent (gae)/g eo. t...

the physico-chemical characteristics and physiological qualities of palm (phoenix dactylifera) fruit strongly depend on the storage conditions. storage environment and packaging type are the factors most influencing on the quality of dates during their storage. date fruits were packed within an aerobic atmosphere, vacuumed in pa/pe pouches and stored at different temperatures (-20, 4, 25 and 40...

in this work the acidity constants of thiamine in water and water-triton x-100 micelle media solutions, at 25 °c, have been determined spectrophotometrically. to evaluate the ph- absorbance data, a resolution based on the combination of soft-and hard-modeling is applied. the acidity constants of all related equilibria are estimated using the whole spectral fitting of the collected data to an es...

detopping in some plants reduces vegetative growth and increases transporting of photosynthate materials to specific sinks such as seeds. to study the effects of detopping removal and plant density on yield and yield components of faba bean (vicia faba l.), an experiment was carried out as a factorial arrangement based on a randomized complete block design with three replications at farm resear...

improving the processing and the recycled paper properties is one of permanent concern of papermaking. in this research, the effect of nanochitosan addition on the process and product quality made of writing and printing recycled fiber was investigated. being nano size and so its capability in access to the space between pulp suspension components and also its probable ability to make electrost...

background: hydroxymethylfurfural (hmf) is a common maillard reaction product directly formed from dehydration of sugars under acidic conditions during heating and storage in carbohydrate rich foods. the aim of the present study was to detect and quantify the amount of hmf in date syrup by hplc method. in addition, the amount of hmf in date syrup produced by traditional and industrial methods w...

protonation of the reactive intermediate produced in the  reaction between trimethyl phosphite and dimethyl acetylenedicarboxylate or diethyl acetylenedicarboxylate by resorcinol, 5-methylresorcinol, 2,5-dihydroxyacetophenone, 4-chloro-2-methylphenol, 4-chloro-3,5-dimethy-lphenol, 4-hydroxypyridine, 2-hydroxypyridine, 3-hydroxypyridine, or 8-hydroxyquinoline leads to vinylphosphonium salts, whi...

shiftwork that affects diverse aspects of human life is arranged in various schedules. the main purpose of this study was to compare psycho-social problems among employees working in different 12-hour shift schedules of iranian petrochemical industries. this cross-sectional study was carried out at eight petrochemical companies in asalooyeh area. the study population consisted of 549 shift work...

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