نتایج جستجو برای: sodium sulfate

تعداد نتایج: 228389  

Journal: :health scope 0
amir hosein mahvi department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran; center for solid waste research, institute for environmental research, tehran university of medical sciences, tehran, ir iran mehdi vosoughi department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; student research committee, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-9386939465, fax: +98-6113361544 mohammad javad mohammadi department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; clinical research development center, razi teaching hospital, ahvaz jundishapur university of medical sciences, ahvaz, ir iran anvar asadi department of environmental health, school of public health, shahid beheshti university of medical sciences, tehran, ir iran bayram hashemzadeh department of environmental health, khoy school of nursing and public health, urmia university of medical sciences, urmia, ir iran amir zahedi department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions the findings of this study showed that the modification of natural zeolites can achieve higher adsorption capacity for organics. in addition, based on the results, natural zeolite being modified with sds as a cationic surfactant had good efficiency for the adsorption of nom. results the results indicated that sds-modified zeolite showed greatly enhanced adsorption capacity. findings...

1998

Sodium and Ammonium Lauryl Sulfate are anionic surfactants used in cosmetics as cleansing agents. In absorption, metabolism, and excretion studies, Sodium Lauryl Sulfate had a degenerative effect on the cell membranes because of its protein denaturing properties. Low levels of skin penetration may occur at high use concentration. Sodium Lauryl Sulfate had an LD50 of 0.8 to 1.10 g/kg in rats. A ...

Journal: :محیط زیست طبیعی 0
علی لطفی استادیار دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان سید مهدی حشمت الواعظین استادیار دانشکدة منابع طبیعی، دانشگاه تهران محمدرضا گیلی استادیار دانشکدة منابع طبیعی، دانشگاه ملایر آزاده کاظمی دانشجوی دکتری دانشکده محیط زیست، دانشگاه تهران

external costs of environmental degradation are often ignored in economic analysis of projects. the mail goal of the paper is to economically analyze the current alternatives of meighan wetland utilization including extraction of sodium sulfate, aquaculture of artemia and integrative alternative considering external costs of wetland degradation. in order to detect eventual degradation of wetlan...

Journal: :Journal of immunology 2007
Bradford E Berndt Min Zhang Gwo-Hsiao Chen Gary B Huffnagle John Y Kao

Dendritic cells (DCs) are essential mediators of the host immune response to surrounding microbes. In this study, we investigate the role of DCs in the pathogenesis of a widely used colitis model, dextran sulfate sodium-induced colitis. The effect of dextran sulfate sodium on the production of proinflammatory cytokines and chemokines by bone marrow-derived DCs (BM-DCs) was analyzed. BM-DCs were...

Journal: :Journal of the American Chemical Society 2008
Iain D H Oswald Andrea Hamilton Christopher Hall William G Marshall Timothy J Prior Colin R Pulham

An important intermediate phase in the crystallization of aqueous solutions of sodium sulfate is the highly metastable sodium sulfate heptahydrate (Na(2)SO(4).7H(2)O). This has been structurally characterized for the first time by in situ single crystal X-ray diffraction. The crystal structure shows that each sodium cation is octahedrally coordinated to water molecules, with a slight distortion...

Journal: :Journal of animal science 2014
J R Flohr M D Tokach S S Dritz J M DeRouchey R D Goodband J L Nelssen

Two experiments were conducted to investigate the effects of sodium sulfate water and the efficacy of nonnutritive feed additives in nursery pig diets. In Exp. 1, 320 barrows (5.4 ± 0.1 kg BW and 21 d of age) were allotted to 1 of 8 treatments for 24 d in a 2 × 4 factorial with 2 levels of sodium sulfate water (control or 3,000 mg sodium sulfate/L added), and 4 dietary zeolite (clinoptilolite) ...

2008
Iain D. H. Oswald Andrea Hamilton Christopher Hall William G. Marshall Timothy J. Prior Colin R. Pulham

An important intermediate phase in the crystallization of aqueous solutions of sodium sulfate is the highly metastable sodium sulfate heptahydrate (Na2SO4 ·7H2O). This has been structurally characterized for the first time by in situ single crystal X-ray diffraction. The crystal structure shows that each sodium cation is octahedrally coordinated to water molecules, with a slight distortion due ...

Journal: :geopersia 2013
amin jamshidi mohammad reza nikudel mashalah khamechiyan

salt crystallization is one of the most important weathering agents and may limit the durability of building stones. salt crystallization induces stresses inside the pores of stones. consequently, stone durability is closely related to its physical properties and strength. the purpose of this study was to propose a statistical model for estimating stone durability against salt crystallization c...

Journal: :iranian journal of diabetes and obesity 0
mohammad afkhami-ardekani mahdi karimi seyed mohammad mohammadi forough nourani sedigheh soheilykhah

type 2 diabetes mellitus is a chronic illness causing considerable morbidity and mortality. enormous advances have been made in medical care but more people are still having tendency to use herbal or alternative remedies. this study is a randomized, controlled trial on type 2 diabetic patients. the subject consisted of 60 patients divided randomly into three groups and supple-mented daily with ...

2012

The term ‘conjugated estrogens’ refers to mixtures of at least eight compounds, including sodium estrone sulfate and sodium equilin sulfate, derived wholly or in part from equine urine or synthetically from estrone and equilin. Conjugated estrogens contain as concomitant components the sodium sulfate conjugates of 17α-dihydroequilin, 17β-dihydroequilin, and 17α-estradiol (United States Pharmaco...

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