نتایج جستجو برای: physicochemical factors

تعداد نتایج: 1105872  

2014
Rona M. Silva Kyle Doudrick Lisa M. Franzi Christel TeeSy Donald S. Anderson Zheqiong Wu Somenath Mitra Vincent Vu Gavin Dutrow James E. Evans Paul Westerhoff Laura S. Van Winkle Otto G. Raabe Kent E. Pinkerton

Inhaled multiwalled carbon nanotubes (MWCNTs) may cause adverse pulmonary responses due to their nanoscale, fibrous morphology and/or biopersistance. This study tested multiple factors (dose, time, physicochemical characteristics, and administration method) shown to affect MWCNT toxicity with the hypothesis that these factors will influence significantly different responses upon MWCNT exposure....

Journal: :Electrophoresis 2003
Carmen García-Ruiz Olga Jiménez Maria L Marina

The optimization of the separation resolution for a group of N-phenylpyrazole derivatives in micellar electrokinetic chromatography (MEKC) as a function of the separation buffer composition (surfactant and organic modifier concentration) has been performed. In order to achieve our purpose, the first step has been the prediction of the migration times of the electroosmotic flow (t(0)) and micell...

Journal: :international journal of advanced biological and biomedical research 2014
morteza oladi ghorbanali nematzadeh ammar gholizadeh ghara ammar afkhami ghadi marzieh rezaei

grain quality currently represents a major problem in high yielding rice production in iran and many other rice producing areas of the world. quality assessment of rice involves the function of sensory tests and physicochemical determinations based on the chemical composition, cooking quality, gelatinization temperature and physical properties of cooked rice. these research genetic materials we...

Journal: :آب و خاک 0
شهبازی شهبازی یزدی پور یزدی پور رئوفی رئوفی

abstract soil crust decreases soil infiltration and prevents plant stablishment. thus reduction of crust effects is a prominent way to avert desertification. this study was conducted to investigate the effect of polyacrylamide on emergence of canola seedlings in a crusted soil and some physicochemical properties of soil such as ph, ec, sar and bulk density in a field located in date and tropica...

2009
Fatimah Abu Bakar Muhammad Zukhrufuz Zaman Abu Bakar Jamilah Bakar

Problem statement: Biogenic amines are basic nitrogenous compounds present in a wide variety of foods and beverages. Their formations were mainly due to the amino acids decarboxylase activity of certain microorganisms. Excessive intake of biogenic amines could induce many undesirable physiological effects determined by their psychoactive and vasoactive action. Fish sauce which is considered as ...

Journal: :Journal of environmental monitoring : JEM 2011
Ndeke Musee Melusi Thwala Nomakhwezi Nota

Nanotechnology is currently at the forefront of scientific research and technological developments that have resulted in the manufacture of novel consumer products and numerous industrial applications using engineered nanomaterials (ENMs). With the increasing number of applications and uses of ENMs comes an increasing likelihood of nanoscale materials posing potential risks to the environment a...

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