نتایج جستجو برای: vanadium compounds

تعداد نتایج: 233757  

Journal: :Molecules 2010
Valentina Uivarosi Stefania Felicia Barbuceanu Victoria Aldea Corina-Cristina Arama Mihaela Badea Rodica Olar Dana Marinescu

Complexes between oxovanadium (IV) cation and flavonoid derivatives were developed recently in order to increase the intestinal absorption and to reduce the toxicity of vanadium compounds. For these reasons, is interesting to investigate the complexation process between flavonoid rutin (Rut) and vanadyl cation in order to isolate new complexes. Two new complexes [VO(Rut)(H2O)2](SO4)0.5 x 2 H2O ...

In this study, vanadium conversion coating(VCC) was deposited on the surface of soft-cast steel (St-37).  A thermoset coating was enforced on the VCC and blank substrates. The surface was characterized by field emission scanning electron microscope (FE-SEM), elemental mapping of energy dispersive X-ray (EDX) and atomic force microscopy (AFM). The adhesion strength...

Journal: :Agronomy 2021

Around the world, maize cultivation is an essential part of food systems for humans and animals. Effective reactions against occurrence diseases related to deficiency elements in human diet are biofortification plant species broad importance, including maize. The enrichment with iodine difficult due poor transport this element plant’s generative organs. In marine algae, vanadium structure enzym...

2009
Hayat M.R. Marafie Fawzia M. Al-Sogair Mohamed S. El-Ezaby

Several oxovanadium (IV) complexes of pyradoxamine (PM), pyridoxol (P), pyridoxal (PL), and glycinehydroxamate (GX) were obtained as a result of potentiometric data analysis using SUPERQUAD at I = 0.15 M NaCl and T = 25°C. Protonated, unprotonated and hydroxospecies were detected in solutions. No polymeric species of oxovanadium(IV) were found under the experimental conditions used. Differentia...

2011
Arun Kumar Haldar Pradip Sen Syamal Roy

In the recent past the standard treatment of kala-azar involved the use of pentavalent antimonials Sb(V). Because of progressive rise in treatment failure to Sb(V) was limited its use in the treatment program in the Indian subcontinent. Until now the mechanism of action of Sb(V) is not very clear. Recent studies indicated that both parasite and hosts contribute to the antimony efflux mechanism....

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان یزد - دانشگاه پیام نور مرکز اردکان - دانشکده علوم 1384

چکیده ندارد.

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2005
Mette Sørensen Roel P F Schins Ole Hertel Steffen Loft

Ambient particulate matter (PM) has been associated with increased risk of lung cancer. One proposed mechanism is that PM induces oxidative stress mediated by transition metals contained within this mixture. We examined the relationship between the personal exposure to water-soluble transition metals in PM(2.5) and oxidative DNA damage. In 49 students from central Copenhagen, we determined PM(2...

Journal: :Diabetes 2007
Silvia García-Vicente Francesc Yraola Luc Marti Elena González-Muñoz María José García-Barrado Carles Cantó Anna Abella Sandy Bour Rafael Artuch Cristina Sierra Nuria Brandi Christian Carpéné Julio Moratinos Marta Camps Manuel Palacín Xavier Testar Anna Gumà Fernando Albericio Miriam Royo Alec Mian Antonio Zorzano

The hallmarks of insulin action are the stimulation and suppression of anabolic and catabolic responses, respectively. These responses are orchestrated by the insulin pathway and are initiated by the binding of insulin to the insulin receptor, which leads to activation of the receptor's intrinsic tyrosine kinase. Severe defects in the insulin pathway, such as in types A and B and advanced type ...

2005
Mette Sørensen Roel P.F. Schins Ole Hertel Steffen Loft

Ambient particulate matter (PM) has been associated with increased risk of lung cancer. One proposed mechanism is that PM induces oxidative stress mediated by transition metals contained within this mixture. We examined the relationship between the personal exposure to watersoluble transition metals in PM2.5 and oxidative DNA damage. In 49 students from central Copenhagen, we determined PM2.5 e...

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