OALib Journal期刊

ISSN: 2333-9721




2019 ( 31 )

2018 ( 481 )

2017 ( 507 )

2016 ( 749 )


匹配条件: “Srivastava S” ,找到相关结果约326478条。
Adrenergic blocking agents in glaucoma
Srivastava S
Indian Journal of Ophthalmology , 1954,
Lens extraction in secondary chronic congestive glaucoma due to intumescent cataract- A modified technique of iridectomy
Srivastava S
Indian Journal of Ophthalmology , 1975,
Cilia in anterior chamber
Srivastava S
Indian Journal of Ophthalmology , 1963,
Dacryocystorhinostomy - Observation on 52 cases
Srivastava S
Indian Journal of Ophthalmology , 1958,
Prospects of developing leptospiral vaccines for animals
Srivastava S
Indian Journal of Medical Microbiology , 2006,
On a class of $α$-para Kenmotsu manifolds
K. Srivastava,S. K. Srivastava
Mathematics , 2014, DOI: 10.1007/s00009-014-0496-9
Abstract: The purpose of this paper is to classify $\alpha$-para Kenmotsu manifolds $M^3$ such that the projection of the image of concircular curvature tensor $L$ in one-dimensional linear subspace of $T_{p}(M^{3})$ generated by $\xi_{p}$ is zero.
On a class of paracontact metric 3-manifolds
K. Srivastava,S. K. Srivastava
Mathematics , 2014,
Abstract: The purpose of this paper is to classify paracontact metric $3$-manifolds $M^3$ such that the Ricci operator $S$ commutes with the endomorhism $\phi$ of its tangent bundle $\Gamma(TM^3)$.
Harmonic maps on paracontact manifolds
S. K. Srivastava,K. Srivastava
Mathematics , 2015,
Abstract: The main purpose of this paper is to give some results in paracontact geometry obtained by the existence of a harmonic map.
Protective role of buffalo pineal proteins on arsenic-induced oxidative stress in blood and kidney of rats  [PDF]
Vijay K. Bharti, R. S. Srivastava
Health (Health) , 2009, DOI: 10.4236/health.2009.13027
Abstract: Objective: Exposure to various toxic metals has become an increasingly recognized source of ill- ness in human and animals, worldwide. Arsenic (As) and its compounds cause adverse health effects in animals and humans. Recently, it has been suggested that the pineal gland may also have antioxidants role due to secretary product other than melatonin. With keeping this view, pre-sent investigation tested effect of buffalo (Bubalus bubalis) pineal proteins (PP) on arsenic-induced oxidative stress in RBCs (Red blood cells) and kidney of rats. Methods: Eighteen adult female Wistar rats were grouped into group-I (Control), group-II (Arsenic control), and group-III (Arsenic + Pineal proteins). Experimental rats were given 100 ppm arsenic (p.o.) for 4 weeks alone or along with pineal proteins at a dose of 100 µg/kg body weight (i.p.). Results: Interestingly, arsenic ex-posure led to the stimulation of kidney catalase (CAT) activity, but inhibition of RBCs CAT activ-ity and significantly (P<0.05) increased the RBCs and kidney lipid peroxidation level (LPO). How-ever, arsenic treatment caused depletion of glu- tathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GPx), and glutathione reductase (GR) in kidney tissues. In RBCs, only GR and CAT activity were significantly (P<0.05) declined. These changes were significantly (P<0.05) reversed by PP treatment in arsenic exposed animals. Conclusion: Therefore, present study indicated the significant protecting effect of buf-falo (Bubalus bubalis) PP against arsenic in-duced-oxidative stress through antioxidant de-fense systems in rats.
Study of Wear and Friction of Al-Fe Metal Matrix Composite Produced by Liquid Metallurgical Method
S. Srivastava,S. Mohan
Tribology in Industry , 2011,
Abstract: A modified impeller mixing coupled with chill casting technique was used for the preparation of Al-Fe composite. The electrolytic grade iron powder of 300mesh size was dispersed in the melt of commercially pure aluminum. The iron content in the composite varied from 1.67 to 11.2 wt%. The presence of iron in the composite improved the ultimate tensile strength, 0.2% proof stress and the hardness. The ductility showed the adverse effect with increase of the iron content in the matrix. The results from microstructure showed the presence of second phase particles at the grain boundaries of aluminum-rich phase as well as within the grain itself which was confirmed by EPMA line as well as XRD analysis. These composite have also been subjected to wear and friction testing at different operating parameters. The XRD analysis was used to analyze the wear debris.

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