171 research outputs found
Medicinal Plants Diversity in Muthathi Wild Life Sanctuary, Karnataka, India
Muthathi is a dense and dry deciduous forest, which is the home of Cauvery Wild Life Sanctuary. In this study the outcome documentation of medicinal plants and its diversity uses in Muthathi Wild Life Sanctuary (MWLS) and inclusive forest is reported. Conventional medicines or traditional medicines are very important part of an Indian culture. Information related to different plants which are used by confined community in the treatment of many common diseases in the area was collected. Records on the use of medicinal plants are collected using structured interview of about local healers and thorough observations and conversations with local communities. The most frequent ailments described are anti-cancer, anti-diabetes, anti-inflammatory, peptic ulcer, jaundice, skin and urinary problems. This study presents new research determinations and perceptions on the search for new drugs based on local uses of medicinal plants
Synthesis and activity evaluation of p-n CuO/CeO2-ZrO2 heterojunction photocatalyst for the removal of dye from industrial wastewater under Visible light irradiation
In this study, p-n junction photocatalyst CuO/CeO2ZrO2 with different concentrations of CuO was prepared by auto solution combustion method using glycine as fuel. This method is simple, fast and cost effective compared with other preparation methods. The photocatalyst was characterized by X-ray diffraction (XRD), energy-dispersive spectrometer (EDS), UV-vis DRS. The assembly of p-type CuO nanoparticles produces a large number of nano p–n junction heterostructures on the surface of the CeO2ZrO2 nanocrystals, where CuO and CeO2ZrO2 form p- and n-type semiconductors. The experimental results reveal that p–n junction CuO/CeO2-ZrO2 heterojunction nanostructures exhibit much higher visible-light photocatalytic activities than the n-CeO2-ZrO2 for the removal of dye from industerial waste water. The photocatalytic activity of the p-n CuO/CeO2-ZrO2 heterojunction photocatalyst was evaluated using the degradation of aqueous methylene blue solution (MB) under visible light irradiation(λ>420 nm). The photo-degradation rate of this catalyzed is much faster than those occurring on n-type CeO2ZrO2. The sample with a p-n CuO/ CeO2-ZrO2 molar ratio of 0.021 presented the best photocatalytic activity, which was 30% higher than that of n-type CeO2ZrO2. The heat treatment condition also influences the photocatalytic activity strongly, and the best preparation condition is about 400ºC for 4h
Possible scale invariant linear magnetoresistance in pyrochlore iridates Bi2Ir2O7
We report the observation of a linear magnetoresistance in single crystals and epitaxial thin films of the pyrochlore iridate Bi2Ir2O7. The linear magnetoresistance is positive and isotropic at low temperatures, without any sign of saturation up to 35 T. As temperature increases, the linear field dependence gradually evolves to a quadratic field dependence. The temperature and field dependence of magnetoresistance of Bi2Ir2O7 bears strikingly resemblance to the scale invariant magnetoresistance observed in the strange metal phase in high Tc cuprates. However, the residual resistivity of Bi2Ir2O7 is more than two orders of magnitude higher than the curpates. Our results suggest that the correlation between linear magnetoresistance and quantum fluctuations may exist beyond high temperature superconductors
Study of the oral hypoglycemic activity of Moringaoleifera leaves alone and in combination with Glibenclamide in streptozotocin induced diabetic albino rats
Background: Oringaoleifera is a widely used plant with high medicinal value, well known for its pharmacological actions and is used in various conditions. It has been reported to have many biological properties like anti-inflammatory, antimicrobial, antispasmodic, antitumour including antidiabetic activity.Methods: The study was carried out in Wistar albino rats with body weight 150-250gms. Diabetes was induced by injecting Streptozotocin intraperitoneally- dose 55 mg/kg BW. Animals were divided into 5 groups with 6 animals in each group. First group (Control) was given 2% gum acacia. Other 4 groups were induced diabetes by giving Streptozotocin. Diabetic control group received gum acacia (0.5 ml), Standard group received Glibenclamide (0.5mg/kg BW), Test group received Moringaoleifera extract (300mg/kg) and Test+ Standard group receiving combination of Moringaoleifera and glibenclamide at half the above doses. All drugs were given orally for 28 days and blood glucose levels analyzed using Glucometer on Day 0 before drug and on D1, D3, D7, D14, D21, and D28. Data were statistically analyzed by ANOVA and Tukey‘s Post Hoc test.Results: Hypoglycemia produced by Moringaoleifera extract was significant (p<0.001) when compared to diabetic control group from day 7 to day 28. The percent reduction of blood glucose level was 52.9% as compared to Glibenclamide group 61.3%. The combination group also showed significant hypoglycemic activity the percentage reduction being 56.44%.Conclusions: Thus, Moringaoleifera decreased blood glucose level efficaciously as compared to diabetic control group and similar to standard group at p<0.001
A Scale to Measure Performance of Village Resource Centres on Farming Activities in Karnataka
ABSTRACT Carrying information on the latest agriculture, health and concerning issues to rural people is an important task in the process of development. Indian Space Research Organisation has taken the initiative of establishing village Th eg r e a t e s tc h a l l e n g ef a c e db yt h eI n d i a n p l a n n e r s i s , h o wt o r e a c ht h e r u r a l p e o p l e e f f e c t i v e l y t o ma k et h e mt a k ea d v a n t a g eo f t h eb e n e f i t so f p l a n n e d d e v e l o p me n tp r o g r a mme s .We a k e n i n go fp u b l i c e x t e n s i o n s y s t e m, p a r t i c u l a r l y a t t h e g r a s s r o o t l e v e l a n d u n wi l l i n g n e s s o f ma n yp e r s o n n e l t owo r ki nt h er u r a l a r e a s i s a l s oa ni s s u eo f c o n c e r ni nt h e r e c e n t y e a r s . I f I n d i a n v i l l a g e r s h a v e s u f f e r e d o v e r t h e y e a r s , i t i s p a r t l y d u et ol a c ko f t i me l yi n f o r ma t i o ns u p p o r t s y s t e m. T h e r u r a l p e o p l e o f I n d i a n e e d t o b e p r o v i d e d wi t h t h e l a t e s t f a r m t e c h n o l o g ya t as h o r t e s t s p a no ft i met ob ei n p r o f i t a b l e f a r mb u s i n e s s . I n d i a nS p a c eR e s e a r c hOr g a n i s a t i o n( I S R O) h a s s u c c e s s f u l l ye s t a b l i s h e dVi l l a g eR e s o u r c eC e n t r e s ( VRC s )a c r o s st h ec o u n t r yi nc o l l a b o r a t i o nwi t h i d e n t i f i e d h o s t o r g a n i z a t i o n s / i n s t i t u t i o n s t o t a k e f i r s t h a n d i n f o r ma t i o nt ot h e g r a s s r o o t l e v e l p e o p l e . T h e VR Ci s at o t a l l yi n t e r a c t i v eVS AT( Ve r yS ma l lAp e r t u r e T e r mi n a l ) b a s e d n e t w o r k , w h e r e t e a c h i n g , l e a r n i n g a n d i n t e r a c t i o ni sd o n et h r o u g hp e r s o n a lc o mp u t e r s n e t wo r k i n g . T h e s e n o d e s c a n b e f u r t h e r e x t e n d e d u s i n g o t h e r t e c h n o l o g i e s l i k e Wi -F i , Wi r e l e s s a n d O p t i c a l F i b r e . T h e s ee x t e n s i o n sma ys e r v ea sl o c a l c l u s t e r sa r o u n d t h ea r e a s wh e r et h eVR Ci s l o c a t e d . Ar o u n d4 6 6VR C sa r es e t u pi nt h ec o u n t r yi n a s s o c i a t i o nwi t hUn i v e r s i t i e s , NGOs , T r u s t s , S t a t e a n d C e n t r a l a g e n c i e s . I nKa r n a t a k aa l o n et h e r ea r e5 8 VR C s i n c l u d i n g s e v e n E x p e r t C e n t r e s a n da n o t h e r 1 3 6 VR C sa r ei np i p el i n ewh i c hi sb e i n gp l a n n e dt ob e e s t a b l i s h e da t R a i t h aS a mp a r k aKe n d r a sa n dKr i s h i Vi g y a nKe n d r a s . T h e v i s i o no f Go v e r n me n t o f I n d i a a n dI S R Oi s t o e s t a b l i s ho n eVR Cf o r e a c hp a n c h a y a t i nt h ec o u n t r y b yt h ee n do f t h ee l e v e n t hp l a np e r i o da n dc r o r e so f mo n e y i s b e i n ge a r ma r k e df o r t h e p u r p o s e . On e o f t h e ma j o r p o r t f o l i o s o f VR C s i s t op r o v i d ei n f o r ma t i o nt o t h ef a r me r s wh oa r et h ep i l l a r s o f o u r n a t i o n , t h r o u g h t e l ea g r i c u l t u r e , t e l eh e a l t h , t e l eme d i c i n ea n ds oo n . PDF Creator -PDF4Free v3.
A Simple Spectrophotometric Determination of Phosphate in Sugarcane Juices, Water and Detergent Samples
A simple spectrophotometric method is developed for the determination of phosphate in sugar cane juice, water and detergent samples. The method is based on the formation of phosphomolybdate with added molybdate followed by its reduction with sodium sulphide in aqueous sulfuric acid medium. The system obeys Lambert-Beer’s law at 715 nm in the concentration range 0.3-12.24 ppm. Molar absorptivity, correlation coefficient and Sandell’s sensitivity values were found to be 6.1x103 mol-1 cm-1, 0.999 and 0.0156 µg cm-2 respectively. The results obtained were reproducible with acceptable standard deviation 3.7% and relative error 3.4%. For a comparison of the method phosphate present in various samples were also determined separately following an official method. The results of the developed method compare well with those of the official method
Tribological Analysis of Copper-Coated Graphite Particle-Reinforced A359 Al/5 wt.% SiC Composites
[[abstract]]Copper-coated graphite particles can be mass-produced by the cementation process using simple equipment.
Graphite particulates that were coated with electroless copper and 5 wt.% SiC particulates were
introduced into an aluminum alloy by compocasting to make A359 Al/5 wt.% SiC(p) composite that
contained 2, 4, 6, and 8 wt.% graphite particulate composite. The effects of SiC particles, quantity of
graphite particles, normal loading, sliding speed and wear debris on the coefficient of friction, and the wear
rate were investigated. The results thus obtained indicate that the wear properties were improved by adding
small amounts of SiC and graphite particles into the A359 Al alloy. The coefficient of friction of the A359
Al/5 wt.% SiC(p) composite that contained 6.0 wt.% graphite particulates was reduced to 0.246 and the
amount of graphite film that was released on the worn surface increased with the graphite particulate
content. The coefficient of friction and the wear rate were insensitive to the variation in the sliding speed
and normal loading.[[notice]]補正完畢[[incitationindex]]SCI[[booktype]]紙本[[booktype]]電子
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