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A multiwavelength view of the ISM in the merger remnant galaxy Fornax A

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Research in Astronomy and Astrophysics 2013年第8期13卷 885-898页

作者： Swati Pralhadrao Deshmukh Bhagorao Tukaram Tate Nilkanth Dattatray Vagshette Sheo kumar pandey Madhav Khushalrao Patil Department of Physics Institute of Science Department of Physics Balbhim Arts Science and Commerce College School of Physical Sciences Swami Ramanand Teerth Marathwada University School of Studies in Physics & Astrophysics Pandit Ravishankar Shukla University

We present multi-wavelength imagery of the merger remnant galaxy NGC 1316 with an objective to study the dust content and its association with the other phases of the interstellar medium. Color-index maps as well as extinction maps derived for this galaxy reveal an intricate and complex dust morphology in NGC 1316, i.e. there is a prominent lane in the inner part, while at about 6-7 kpc it apparently takes the form of an arc-like pattern extending along the northeast direction. In addition to this, several other dust clumps and knots are also evident in this galaxy. The dust emission mapped using Spitzer data at 8 μm indicates even more complex morphological structures of the dust in NGC 1316. The extinction curve derived over the optical to near-IR bands closely follows the standard Galactic curve, suggesting similar properties of the dust grains. The dust content of NGC 1316, estimated from optical extinction, is ,- 2.13 × 10^5 M⊙. This is a lower limit compared to that estimated using the IRAS flux densities of ,-5.17× 10^6 M⊙ and the flux densities at 24, 70 and 160 p.m from MIPS ,-3.2× 10^7 M⊙. High resolution Chandra observations of this merger remnant system have provided an unprecedented view of the complex nature exhibited by the distribution of hot gas in NGC 1316, which closely matches the morphology of ionized gas and to some extent also the dust. X-ray color-color plots for the resolved sources within the optical D25 extent of NGC 1316 have enabled us to separate them into different classes.

关键词： galaxies individual (NGC 1316) - galaxies: ISM - X-rays: ISM - (ISM:) dust - extinction - galaxies: elliptical and lenticular, cD

Productivity, quality and soil health as influenced by lime in ricebean cultivars in foothills of northeastern India

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The Crop Journal 2014年第5期2卷 338-344页

作者： Rakesh kumar Dibyendu Chatterjee Narendra Kumawat Avinash pandey Aniruddha Roy Manoj kumar ICAR Research Complex for NEH Region Nagaland CentreJharnapani Medziphema Nagaland 797 103 India Senior Research Fellow Agricultural Research Station SK Rajasthan Agricultural UniversityBikaner Rajasthan 334 006 India ICAR Research Complex for NEH Region Umiam Meghalaya 793 103 India

To evaluate the response to lime on cultivars of ricebean(Vigna umbellata), a field experiment was conducted during the two consecutive rabi seasons of 2010–2011 and 2011–2012 in the Nagaland foothills, India. The experiment used a split-plot design with four levels of lime(control, 0.2, 0.4and 0.6 t ha-1) in main plots and four ricebean cultivars(RBS-16, RBS-53, PRR-2, and RCRB-4) in sub-plots with three replicates. The results revealed that increasing levels of lime(in the furrow)from 0 to 0.6 t ha-1significantly increased growth, yield attributes and yield. The quality parameters of ricebean were also influenced significantly by the application of lime. Maximum gross return(INR 39,098 ha-1), net return(INR 27,281 ha-1), benefit:cost(B:C) ratio(2.29),production efficiency, and economic efficiency were also realized with the application of lime at 0.6 t ha-1. Among the ricebean cultivars, RBS-53 produced significantly higher growth, yield attributes, grain yield, straw yield, biological yield, and harvest index. Similarly, yield and protein content were higher in RBS-53. Maximum gross return, net return, B:C ratio, production efficiency, and economic efficiency were observed for RBS-53.

关键词： Economics Lime application Ricebean Response curve Yield attributes

Molecular signalling during cross talk between gut brain axis regulation and progression of irritable bowel syndrome:A comprehensive review

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World Journal of Clinical Cases 2023年第19期11卷 4458-4476页

作者： Shiv Vardan Singh Risha Ganguly Kritika Jaiswal Aditya kumar Yadav Ramesh kumar Abhay K pandey Department of Biochemistry University of AllahabadAllahabad(Prayagraj)211002Uttar PradeshIndia

Irritable bowel syndrome(IBS)is a chronic functional disorder which alters gastrointestinal(GI)functions,thus leading to compromised health *** of IBS is not fully understood,whereas abnormal gut brain axis(GBA)has been identified as a major etiological *** studies are suggestive for visceral hyper-sensitivity,altered gut motility and dysfunctional autonomous nervous system as the main clinical abnormalities in IBS *** signalling interactions among these abnormalities are derived through various exogenous and endogenous factors,such as microbiota population and diversity,microbial metabolites,dietary uptake,and psychological *** efforts focused to study these interactions including probiotics,antibiotics and fecal transplantations in normal and germfree animals are clearly suggestive for the pivotal role of gut microbiota in IBS ***,neurotransmitters act as communication tools between enteric microbiota and brain functions,where serotonin(5-hydroxytryptamine)plays a key role in pathophysiology of *** regulates GI motility,pain sense and inflammatory responses particular to mucosal and brain *** the absence of a better understanding of various interconnected crosstalks in GBA,more scientific efforts are required in the search of novel and targeted therapies for the management of *** this review,we have summarized the gut microbial composition,interconnected signalling pathways and their regulators,available therapeutics,and the gaps needed to fill for a better management of IBS.

关键词： Irritable bowel syndrome Microbiota Gut brain axis Stress Serotonin

Process forces and heat input as function of process parameters in AA5083 friction stir welds

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Transactions of Nonferrous Metals Society of China 2012年第2期22卷 288-298页

作者： Rajneesh kumar Kanwer SINGH Sunil pandey Engineering Division National Metallurgical LaboratoryJamshedpur 831007India Mechanical Engineering Department Indian Institute of Technology DelhiDelhi 110016India

AA5083 friction stir welds were produced using systematic experimental design, the process forces and heat input with varying parameters were studied. Helpful empirical models were developed in designing friction stir welding （FSW） tools and FSW welders. These models may be further helpful for making process parameter choice for this sort of alloy, defining welding program and control of process parameters by using computer numerical control friction stir welding welders. The results show that tool rotational speed, welding speed and tool shoulder diameter are most significant parameters affecting axial force and heat input, while longitudinal force is significantly affected by welding speed and probe diameter.

关键词： friction stir welding AA 5083 tool design heat input process forces process parameters

Determination of flavonoids,polyphenols and antioxidant activity of Tephrosia purpurea:a seasonal study

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Journal of Integrative Medicine 2016年第6期14卷 447-455页

作者： Madan Mohan pandey Sayyada Khatoon Subha Rastogi Ajay kumar Singh Rawat Pharmacognosy&Ethnopharmacology Division CSIR-National Botanical Research InstituteLucknow 226 001India

OBJECTIVE： Tephrosia purpurea （Linn.） Pers. is widely used in traditional medicine to treat liver disorders, febrile attacks, enlargement and obstruction of liver, spleen, and kidney. In the present study investigations were carried out to determine the seasonal impact on the content of flavonoid glycosides and on antioxidant activities so as to identify the optimal time of harvesting. METHODS： The plant materials were collected in different seasons during 2013-2014. Air-dried, powdered plant materials were extracted with 95% ethanol and ethanol：water （1：1 ） by ultrasound-assisted extraction process. Their chemical composition in terms of total polyphenol and flavonoid contents （TPCs and TFCs） was determined using modified colorimetric Folin-Ciocalteu method and aluminum chloride colorimetric assay respectively. To determine the in vitro antioxidant activity, diphenyl-picryl hydrazyl （DPPH） radical-scavenging assay and total antioxidant capacity by phosphomolybdate antioxidant assay were carried out. High-performance liquid chromatography （HPLC）/photo-diode array （PDA） analysis was used to quantify the flavonoid glycosides in the samples collected in different seasons. Correlation studies were also carried out between antioxidant activities and TPCs. RESULTS： The highest TPC and TFC were found to be in the 95% ethanolic extract of the August sample and the lowest in the 50% hydro-alcoholic extract of the plant sample collected in winter season. It was observed that in both the assays used to determine the antioxidant activity, the 95% ethanolic extracts in all the seasons showed a higher activity than their respective 50% hydro- alcoholic extracts with an increase in activity as we go from cold to hot to rainy seasons. Based on correlation analysis, DPPH radical-scavenging activities as well as the spectrophotometrically measured phosphomolybdenum complex were also strongly correlated with TPC of the extracts, The most abundant flavonoid glycoside was quercetin-3-O-

关键词： Tephrosia chromatography, high-performance liquid flavonoid glycosides seasonal variation antioxidant effect

Synthesis of Novel Nanocomposites of Silica and Guar Gum:Efficient Zinc Ion Binder

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复旦学报（自然科学版） 2007年第5期46卷 721-722页

作者： Vandana Singh Sadanand pandey Somit kumar Singh Rashmi Sanghi Department of Chemistry University of Allahabad 302 Southern Laboratories Facility for Ecological and Analytical TestingIndian Institute of Technology

1 Results Adsorption using commercial activated carbon (CAC)[1] can remove heavy metals from wastewater[2-4].However,CAC remains an expensive material for heavy metal *** exchange techniques are also used but it generates volumetric sludge and increases the cost[5].Using naturally occurring seed polysaccharides can solve these problems but their solubility in water limits its application as an *** gum is a commercially available,industrially important[6-7] polysaccharide material havi...

关键词： nanocomposite silica guar gum zinc ion binder

Virtual Determination of Sex:Estimating Cut off Value of Digital Metric Traits of Foramen Magnum on Three-dimensional Computed Tomography with Receiver Operating Characteristic and Logistic Regression Analysis

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Journal of Forensic Science and Medicine 2021年第1期7卷 1-8页

作者： Harish kumar S Agarwal Pardaman Singh Setia Suryamani pandey Department of Forensic Medicine and Toxicology Maharaja Agrasen Medical CollegeHisarHaryanaIndia Department of Radiodiagnosis Maharaja Agrasen Medical CollegeHisarHaryanaIndia Department of Community Medicine Maharaja Agrasen Medical CollegeHisarHaryanaIndia

Background:Radiological imaging plays a pivotal role in forensic *** have the imaging techniques advances,so have the digital skeletal measurements inched towards *** trends of the population keep on changing in modem ***,finding the precise technique of bone measurement,with greater reproducibility,in modem population is always needed in making population specific biological *** and Objective:The aim of this study was to estimate the accuracy of the foramen magnum measurement,obtained by three dimensional multi-detector computed tomography using volume rendering technique with the cut off value of each variable,in sex determination of an *** and Methods:Two metric traits,an antero-posterior diameter(APD)and transverse diameter(TD),were measured digitally in an analysis of 130 radiological images having equal proportion of male and female *** magnum index and area of foramen magnum(Area by Radinsky's[AR],Area by Teixeira5s[AT])were derived from APD and ***:Descriptive statistical analysis,using unpaired t-test,showed significant higher value in males in all the *** Pearson correlation analysis,maximum correlation was observed between area(AT and AR r=0.999)and between area and TD(AR r=0.955 and AT r=0.945 respectively).When used individually,TD had the highest predictive value(67.7%)for sex detennination among all the parameters followed by AT(65.4%)and AR(64.6%).Cutoff value of variables TD,AR and AT were 29.9 mm,841.80 mm2 and 849.70 mm2 *** operating characteristic curve predicted male and female sex with 96.2%and 89.2%accuracy *** overall accuracy of the model was 92.7%.Conclusion:Measurements from 3D CT using volume rendering technique were precise,and the application of logistic regression analysis predicted the sex with more accuracy.

关键词： Binary logistic regression analysis foramen magnum sex determination three-dimensional multi-detector computed tomography volume rendering technique

Functional Role of miRNAs: Key Players in Soybean Improvement

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Phyton-International Journal of Experimental Botany 2021年第5期90卷 1339-1362页

作者： Kapil Gupta Sujit kumar Mishra Shubhra Gupta Saurabh pandey Jogeswar Panigrahi Shabir Hussain Wani CSIR-Central Institute of Medicinal and Aromatic Plants Lucknow226015India Department of Zoology School of Applied SciencesCenturion University of Technology and ManagementBhubaneswar751009India Department of Biotechnology Central University of RajasthanAjmer305817India Plant Molecular Biology International Center for Genetic Engineering&BiotechnologyNew Delhi110067India Department of Biosciences and Bioinformatics Khallikote UniversityBerhampur761008India Mountain Research Center for Field Crops KhudwaniSher-e-Kashmir University of Agricultural Sciences and Technology of KashmirAnantnag192101India

Soybean(Glycine max(L.)Merr)is an agro-economic crop growing across the world to cater nutrition for both human and animal feed due to the high oil and protein content in its edible *** genes and QTLs associated with important agronomic traits in this crop have already been identified and validated for soybean cyst nematode(SCN),Phytophthora root and stem rot,Pythium root rot and aphid resistance,seed quality,nutrient values,and also employed for genetic improvement in *** the last decade,micro RNAs(miRNAs)have been considered the effector molecules,so the detection and characterization of novel miRNAs in soybean have been taken up by several *** advancement in the strategy of sequencing and tools of bioinformatics during last decade has contributed to the discovery of many soybean miRNAs,thus miRNA can be used as a tool in molecular breeding studies,and this has opened new vistas for miRNA mediated genetic improvement of soybean to augment crop productivity as well as nutritional *** review addresses the current state of understanding of miRNAmediated stress responses,nutrient acquisition,plant development and crop production processes in soybean.

关键词： Soybean miRNA quality improvement plant development genetic engineering molecular breeding

Studies on Rhizospheric Mycoflora of Tea (Camellia sinensis): In vitro Antagonism with Dominant Bacteria

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应用与环境生物学报 2007年第3期13卷 357-360页

作者： SINGH Shuchi SOOD Anchal SHARMA Shivesh kumar Vivek SINGH Kamal Deep pandey Piyush Department of Microbiology Division of Life Sciences SBS (PG) Institute of Biomedical Sciences and Research Department of Soil and Water Public Authority of Agriculture Affairs & Fish Resources

Species of Trichoderma, Penicillium, Aspergillus and Mucor were found to dominate the rhizosphere of tea bushes in different regions of the Indian Himalayas. The Himachal Himalayas were dominated by Monilia humiscola (45.08%) and Mucor hiemalis (33.11%). In the Uttaranchal Himalayas, Aspergillus clavatum dominated the rhizosphere (54.01%), followed by A. flavous (20.07%). Although the fungal isolates require a mesophillic temperature (15 ℃ to 35 ℃), the tea rhizospheric isolates tolerate a wide range of temperatures (5 ℃ to 45 ℃). When tested for pH tolerance, these fungi showed a wide range (2.0 to 13.0) of pH tolerance under in vitro conditions. Seasonal variations also influenced the colony forming units (cfu) of the rhizospheric fungi, with the maximum forming in November and March, and the minimum in December^February. During this period, the populations of the fungi were found inversely proportional to the bacterial populations. In addition, the dominant bacteria in the tea rhizosphere, i.e., Bacillus subtilis and B. mycoides, showed antagonistic activity against fungal isolates by inhibiting the growth and causing structural abnormalities in mycelium. Tab 5, Ref

关键词：细菌茶拮抗作用真菌区系丛矮病优势菌种