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Search Results: 1 - 10 of 140216 matches for " Pankaj K. Sahu "
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Influence of Fly Ash and Growth Regulator with Soil for Determination of Chlorophyll in Arachis hypogaea L.  [PDF]
Shweta Sao, Pankaj K. Sahu
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.49214

The present investigation was conducted to find out the effect of varying levels of fly ash and growth hormones on the determination of chlorophylls. The experiments were conducted in pots during 2009-2010 with Arachis hypogaea L. (groundnut) grown with different levels of fly ash concentration, and soil was used (various combinations) at Guru ghasidas University, Bilaspur (CG.) India. In fresh leaf, chlorophylls content varies in the plain soil from 0.29 to 0.64 mg g-1, which is less for photosynthetic activities. Arachis hypogaea L. showed maximum germination percentage, increasing leaf area, enhancement of root & shoot length, whereas Fly ash, bio fertilizers with growth hormone showed minimum values in all parameters. Results showed that, for combination of A to E, the value of chlorophyll ranged from 0.270 mg g-1 to 0.395 mg g-1

Economics of Yield and Production of Alkaloid of Withania somnifera (L.) Dunal  [PDF]
Atul Kumar Shrivastava, Pankaj K. Sahu
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.410253

The yield parameters and cost economics of Withania somnifera were studied using Integrated Nutrient Management (INM) treatments. Withania somnifera is cultivated in around 10,780 ha with a production of 8429 tones in India. The annual demand of this herb increased from 7028 tones (2001-2002) to 9127 tones (2004-2005). The field experiment was conducted at the research farm of Department of Plant Physiology, College of Agriculture, Jabalpur during Kharif season of 2008-2009 (1st year) and 2009-2010 (2nd year), whereas the laboratory work was carried out in Quality Laboratory, College of Agriculture, Jabalpur. The soil of experimental field was sandy loam in texture with pH 7.5, EC 0.18 dsm-1 having good drainage. Soil analysis revealed that available nitrogen was low (202.0 kg·ha-1) whereas available phosphorus

Impact of Parthenium hysterophorus L. Invasion on Species Diversity of Cultivated Fields of Bilaspur (C.G.) India  [PDF]
Preeti Kumari, Pankaj K. Sahu, Madhu Y. Soni, Poonam Awasthi
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.58079

In present study invasion of Parthenium hysterophorus L. and its impacts on agriculture fields will be done in different cultivated crops in Bilaspur. The present work deals with diversity and distribution of weeds species in cultivated fields of Bilaspur C.G. A total number of 28 species under 27 genera and 16 families was distributed in three study sites (Koni, Sakri & Kota) of cultivated fields in Bilaspur C.G. These study sites were located in different altitudinal zones responding different conditions in the this study. The number of species per sites ranged from 13 to 24. In the Sakri, number of species was ranged from 17 to 27, and the relative density of plant species ranged between 0.77 (Heteropogon contortus, Solanum surratense, Vernonia cinneria and Leucas aspera) and 22.92 (Parthenium hysterophorus). In the Kota, number of species was ranged from 14 to 28, and the relative density of plant species ranged between 0.85 (Ageratum

Microbial Observation in Bioaccumulation of Heavy Metals from the Ash Dyke of Thermal Power Plants of Chhattisgarh, India  [PDF]
Sonali Banerjee, Ragini Gothalwal, Pankaj K. Sahu, Shweta Sao
Advances in Bioscience and Biotechnology (ABB) , 2015, DOI: 10.4236/abb.2015.62013
Abstract: Several mechanisms are developed by the microorganisms to tolerate few high concentrations of heavy metals. One of these mechanisms dependent upon anabolic and catabolic energy of microorganisms is the bioaccumulation of heavy metals. In present work, approximately four varieties of bacteria have been isolated from the ash dyke sample of four thermal power plants of Chhattisgarh, i.e., Bharat Aluminium Company (BALCO), Chhattisgarh State Electricity Board (CSEB), Korba, Thermal Power Cooperation (NTPC), Bilaspur and KSK Akaltara, Chattisgarh. Out of one hundred fifty isolates, three were capable to grow in varying concentration of heavy metals. The strains were tested for their tolerance against six different types of heavy metals dominant in the ash samples viz. Pb, Hg, Ni, Co, Cu, Mn. Their maximum resistance existed up to 0.6mM/ml of the above mentioned different metals under lab standard conditions. Three isolates are found suitable for the multiple metal resistance ability viz SM2, SM3, and SM12. These are categorized as Bacillus cereus (SM2, SM3), and Bacillus subtilis (SM12) after performing 16S rDNA sequencing.
Diversity in Macrobenthic & Algal Fauna of Limha Pond, Ghutku Bilaspur India  [PDF]
Pratibha Pandey, Pankaj K. Sahu, Yogendra N. Jha, Atul K. Shrivastava
Open Journal of Marine Science (OJMS) , 2014, DOI: 10.4236/ojms.2014.42006

The present study reported on phytoplankton in comparison to the zooplankton in Limha Pond, Ghutku, Bilaspur. The phytoplankton represented in larger number of Cyanophyceae with least density of Dinophyceae and Chlorophyceac, and Bacillariophyceae is the second dominant group. The present study tried to discuss on the problem Macrobenthic fauna of Limha Pond, Ghutku Bilaspur and observed quantitative algal and faunal diversity i.e. phytoplankton (34 species), aquatic organism (6 species) Bacillariophyceae (8 species), Chlorophyceae (11 species), Euglenophyceae (6 species), Zooplankton (20 species), and Fish species (16 species). Present study revealed that Cyprinidae (carps) were the dominant fish and Catla was a major contributor among carps. The following species Catla catla, Labeo rohita, Cirrhinus mrigala, Labeo calbasu, Barbus tor and Cirrhinus reba etc. were noted in Limha pond, Ghutku, Bilaspur.

Ethnomedicinal Plants Used in the Healthcare Systems of Tribes of Dantewada, Chhattisgarh India  [PDF]
Pankaj K. Sahu, Vanee Masih, Sharmistha Gupta, Devki L. Sen, Anushree Tiwari
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.511177

The tribal people depend on forests for their livelihood and most of the rural people still depend on traditional medicine as a primary healthcare source. The paper highlights the rich plant resources and the vast wealth of ethnobotanical information available with the various tribes of the region. In this paper, some new and less known ethno medicinal uses of 104 plants of tribes of Dantewada, Dakshin Bastar C.G. in different ailments have been reported. The main objective of present work is to give the information and documentation of medicinal plant used by tribal of the study sites. The ethnomedicinal information was gathered from interviews with living elders belonging to Madiya, Muriya, Gond and Bhatra tribes of the study area. The present work on ethnomedicinal plants, used in the healthcare systems of tribes in 15 villages, was carried out from Geedam block of Dantewada, Dakshin Bastar C.G.

Therapeutic and Medicinal Uses of Aloe vera: A Review  [PDF]
Pankaj K. Sahu, Deen Dayal Giri, Ritu Singh, Priyanka Pandey, Sharmistha Gupta, Atul Kumar Shrivastava, Ajay Kumar, Kapil Dev Pandey
Pharmacology & Pharmacy (PP) , 2013, DOI: 10.4236/pp.2013.48086
Abstract: The plant Aloe vera is used in Ayurvedic, Homoeopathic and Allopathic streams of medicine, and not only tribal community but also most of the people for food and medicine. The plant leaves contains numerous vitamins, minerals, enzymes, amino acids, natural sugars and other bioactive compounds with emollient, purgative, anti-microbial, anti inflammatory, antioxidant, aphrodisiac, anti-helmenthic, antifungal, antiseptic and cosmetic values for health care. This plant has potential to cure sunburns, burns and minor cuts, and even skin cancer. The external use in cosmetic primarily acts as skin healer and prevents injury of epithelial tissues, cures acne and gives a youthful glow to skin, also acts as extremely powerful laxative.
Effect of silicon resistivity on its porosification using metal induced chemical etching
Shailendra K Saxena,Gayatri Sahu,P. K. Sahoo,Pankaj R. Sagdeo,Rajesh Kumar
Physics , 2014, DOI: 10.1088/2053-1591/2/3/036501
Abstract: A comparison of porous structures formed from silicon (Si) wafers with different resistivities has been reported here based on the morphological studies carried out using scanning electron microscope (SEM). The porous Si samples have been prepared using metal induced etching (MIE) technique from two different Si wafers having two different resistivities. It is observed that porous Si containing well aligned Si nanowires are formed from high resistivity (1-20 $\Omega$cm) Si wafer whereas interconnected pores or cheese like structures are formed from low resistivity (0.02 $\Omega$cm ) Si wafers after MIE. An explanation for the different porosification processes has also been proposed based on the initial doping level where number of dopants seems to be playing an important role on the etching process. Visible photoluminescence have been observed from all the porous samples possibly due to quantum confinement effect.
A Novel Anticancer Agent, 8-Methoxypyrimido[4′,5′:4,5]thieno(2,3-b) Quinoline-4(3H)-One Induces Neuro 2a Neuroblastoma Cell Death through p53-Dependent, Caspase-Dependent and -Independent Apoptotic Pathways
Upasana Sahu, Himakshi Sidhar, Pankaj S. Ghate, Gopal M. Advirao, Sathees C. Raghavan, Ranjit K. Giri
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0066430
Abstract: Neuroblastoma is the most common cancer in infants and fourth most common cancer in children. Despite recent advances in cancer treatments, the prognosis of stage-IV neuroblastoma patients continues to be dismal which warrant new pharmacotherapy. A novel tetracyclic condensed quinoline compound, 8-methoxypyrimido [4′,5′:4,5]thieno(2,3-b) quinoline-4(3H)-one (MPTQ) is a structural analogue of an anticancer drug ellipticine and has been reported to posses anticancer property. Study on MPTQ on neuroblastoma cells is very limited and mechanisms related to its cytotoxicity on neuroblastoma cells are completely unknown. Here, we evaluated the anticancer property of MPTQ on mouse neuro 2a and human SH-SY5Y neuroblastoma cells and investigated the mechanisms underlying MPTQ-mediated neuro 2a cell death. MPTQ-mediated neuro 2a and SH-SY5Y cell deaths were found to be dose and time dependent. Moreover, MPTQ induced cell death reached approximately 99.8% and 90% in neuro 2a and SH-SY5Y cells respectively. Nuclear oligonucleosomal DNA fragmentation and Terminal dUTP Nick End Labelling assays indicated MPTQ-mediated neuro 2a cell death involved apoptosis. MPTQ-mediated apoptosis is associated with increased phosphorylation of p53 at Ser15 and Ser20 which correlates with the hyperphosphorylation of Ataxia-Telangiectasia mutated protein (ATM). Immunocytochemical analysis demonstrated the increased level of Bax protein in MPTQ treated neuro 2a cells. MPTQ-mediated apoptosis is also associated with increased activation of caspase-9, -3 and -7 but not caspase-2 and -8. Furthermore, increased level of caspase-3 and cleaved Poly (ADP Ribose) polymerase were observed in the nucleus of MPTQ treated neuro 2a cells, suggesting the involvement of caspase-dependent intrinsic but not extrinsic apoptotic pathway. Increased nuclear translocation of apoptosis inducing factor suggests additional involvement of caspase-independent apoptosis pathway in MPTQ treated neuro 2a cells. Collectively, MPTQ-induced neuro 2a cell death is mediated by ATM and p53 activation, and Bax-mediated activation of caspase-dependent and caspase-independent mitochondrial apoptosis pathways.
La Ni?a Impacts on Austral Summer Extremely High-Streamflow Events of the Paranaíba River in Brazil
Netrananda Sahu,R.B. Singh,Pankaj Kumar,Roberto Valmir Da Silva,Swadhin K. Behera
Advances in Meteorology , 2013, DOI: 10.1155/2013/461693
Abstract: The extremely high-streamflow events of the Paranaíba River basin are found to be associated with La Ni?a phenomenon during December–February (DJF). Extreme events are identified based on their persistent flow for seven days and more after taking retention time into consideration. The extremely high-streamflow events are associated with the La Ni?a years; 80% of the high-streamflow events have occurred during La Ni?a phases. Therefore, a very-significant 80% and above correspondence of the La Ni?a events and the seasonal streamflow anomalies are found in DJF. Although climate variations have direct relationship with the rainfall, streamflow variations are considered as the surrogates to rainfalls. However, apart from climate variations the anthropogenic and land-use changes also influence streamflow variations. In this study, we have applied multivelocity TOPMODEL approach and residual trend analysis to examine the impact of land-use to the streamflow at the Fazenda Santa Maria gauge stations. However, the model residual trend analysis of the TOPMODEL approach cannot quantify the extent of land-use impact. Thus, La Ni?a phase is important components to understand and predict the streamflow variations in the Paranaíba River basin. 1. Introduction Streamflow plays a major role in the livelihood of the people in a river catchment. Hence, the scientific analysis of streamflow is very essential for the present and future generations. The influences of climate variability on the streamflows have been studied by Sahu et al., [1–3] in their previous studies of Indonesia, and found very good correlation of the impact of climate variability on the streamflow. Several studies performed on southeastern South America have used streamflows as indicators of climatic variability from the interannual to the seasonal scale [4–6]. It is stated that the climate variability and changes can be studied by analyzing river flows as a surrogate to rainfall, under the assumption that changes in the rainfall are reflected and likely amplified in streamflows [7, 8]. Moreover, it is easier to detect a change in streamflow than to directly observe changes in the basic climatic variables [9]. The Paranaíba River flows in the Rio Paranaíba of Brazil and in the state of Minas Gerais of the Mata da Corda Mountains (19°13′21′′S and 46°10′28′′W). The river is flowing at an altitude of 1,148 meters. The length of the river is approximately 1,000 kilometers. The Paranaíba and the Grande River both confluence and then form the second largest Parana River of Brazil, at the point to make the
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