نتایج جستجو برای: nutrients

تعداد نتایج: 39638  

ژورنال: اقیانوس شناسی 2019
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Abstract In mid-March 2019, severe floods occurred in the northern provinces of Iran (Golestan and Mazandaran). Coastal areas, wetlands and bays are strongly influenced by water inputs from land. In this study, the nutrients (nitrate, nitrite, phosphate, silica and ammonium) and other physicochemical parameters (salinity, pH, dissolved oxygen and water temperature) at 8 selected stations in th...

2015
Olumuyiwa T. Omotoso

Insects are important as items of aesthetic values, pests and as food. Bombyx mori L. is an economically important insect. It is an edible insect that is eaten in the tropics. The larvae of silkworm, B. mori, are popular for silk production. Silk is produced when the larvae are ready to pupate. Both the larval and the pupal stages of B. mori were analyzed for their nutrient composition, protein...

Journal: :Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2013
Dejan Stojković Filipa S Reis Lillian Barros Jasmina Glamočlija Ana Ćirić Leo J I D van Griensven Marina Soković Isabel C F R Ferreira

Mushrooms have been reported as sources of biomolecules with various potential. Coprinus comatus was studied to obtain information about this species, comparing cultivated and wild samples. Free sugars, fatty acids, tocopherols, organic acids and phenolic acids were analyzed by chromatographic techniques coupled to different detectors. C. comatus methanolic extract was tested for its antioxidan...

Journal: :Asia Pacific journal of clinical nutrition 2009
Cai-Xia Zhang Suzanne C Ho

OBJECTIVE To evaluate the validity and reproducibility of a food frequency questionnaire (FFQ) developed for assessing the association between dietary factors and breast cancer risk among Chinese women in Guangdong. METHODS 61 women (24-64 years) were recruited from the community in Guangzhou city. An 81-item FFQ was administered twice, one year apart (FFQ1, FFQ2). In the mean time, six 3-day...

Journal: :تحقیقات نظام سلامت 0
سیده سمیرا مخلصی دانشکده علوم پزشکی، دانشگاه آزاد اسلامی، واحد قم، قم، ایران لیدا مقدم بنائم گروه مامایی و بهداشت باروری، دانشکده علوم پزشکی، دانشگاه تربیت مدرس، تهران، ایران

abstract background: since preeclampsia is a potentially dangerous and fatal complication in pregnancy, this research is aimed to determine the daily intake rate of antioxidants' nutrients and their relation to preeclampsia among tehrani pregnant women in 2012. methods: this prospective study was conducted among 1033 pregnant women in prenatal clinics in tehran. a general questionnaire and a fo...

2009
Xiaobo Chao Yafei Jia F. Douglas Shields Sam S. Y. Wang Charles M. Cooper

Three major sediment-associated processes were presented to describe the effects of sediment on the water quality processes, including the effect of sediment on the light intensity for the growth of phytoplankton (PHYTO), the adsorption–desorption of nutrients by sediment and the release of nutrients from the bed sediment layer. A formula was generated from field measurements to calculate the l...

2014
Muhammad Arslan Muhammad Afzal Imran Amin Samina Iqbal Qaiser M. Khan

Plant-bacteria partnership is a promising strategy for the remediation of soil and water polluted with hydrocarbons. However, the limitation of major nutrients (N, P and K) in soil affects the survival and metabolic activity of plant associated bacteria. The objective of this study was to explore the effects of nutrients on survival and metabolic activity of an alkane degrading rhizo-bacterium....

2015
Qingxue Li Zhiqing Jia Yajuan Zhu Yongsheng Wang Hong Li Defu Yang Xuebin Zhao

The Gonghe Basin region of the Tibet Plateau is severely affected by desertification. Compared with other desertified land, the main features of this region is windy, cold and short growing season, resulting in relatively difficult for vegetation restoration. In this harsh environment, identification the spatial distribution of soil nutrients and analysis its impact factors after vegetation est...

Journal: :Ecology 2021

In aquatic detrital-based food webs, research suggests that autotroph-heterotroph microbial interactions exert bottom-up controls on energy and nutrient transfer. To address this emerging topic, we investigated responses to light treatments during Liriodendron tulipifera litter decomposition fed the caddisfly larvae Pycnopsyche sp. We measured litter-associated algal, fungal, bacterial biomass ...

2015
Perumal Palanivell Osumanu Haruna Ahmed Nik Muhamad Ab Majid Mohamadu Boyie Jalloh Kasim Susilawati

High cation exchange capacity and organic matter content of crude humic substances from compost could be exploited to reduce ammonia loss from urea and to as well improve rice growth and soil chemical properties for efficient nutrients utilization in lowland rice cultivation. Close-dynamic air flow system was used to determine the effects of crude humic substances on ammonia volatilization. A p...

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