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Study of Dielectric Constant of (1-x) ***3(ZMT) Ceramic Material at MicrowaveFrequencies as a Function of Composition x andProcessing Temperature

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Journal of Electromagnetic Analysis and Applications 2010年第12期2卷 664-671页

作者： Ravi kumar Gangwar Surya Pal Singh Meenakshi Choudhary Nitish kumar Singh devendra kumar Om Parkash 不详

In this paper measurement of real part of permittivity and loss tangent of (1-x) ***3 (ZMT) material in powder form in S-band of microwave frequencies is presented and the associated accuracy estimated. This approach is based on the measurement of transmitted power from the cavity at and off resonance. Details of the design and fabrication of the rectangular cavity and the input and output coupling are given. The variation of dielectric properties of (1-x) ***3 (ZMT) with x-value and calcination temperature (for x = 0.1) is presented. The effect of doping of V2O5 is also studied. The results of present work may provide useful design guidelines for development of microwave compo-nents including dielectric resonator antennas.

关键词： Cavity Perturbation Method Permittivity Loss Tangent And Ceramic Material

Reconstruction of chronic acromioclavicular joint disruption with artificial ligament prosthesis

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Chinese Journal of Traumatology 2013年第4期16卷 216-220页

作者： devendra kumar Chouhan Uttam Chand Saini Mandeep Singh Dhillon Department of Orthopaedics Post Graduate Instituteof Medical Education & Research Sector 12 Chandigarh160012 India

Objective： Management of Rockwood type 3 acromioclavicular disruptions is a matter of debate. Should we adopt conservative or operative measures at first presentation？ It is not clear but most of the evidences are in favour of conservative management. We present our expe- rience in managing these patients surgically. Methods： We present a prospective series of eight cases of chronic Rockwood type 3 acromioclavicular joint disruptions treated surgically. Anatomical reconstruction of the coracoclavicular ligament was done by artificial braided polyester ligament prosthesis： Results： All the patients were able to perform daily activities from an average of the 14th postoperative day. All patients felt an improvement in pain, with decrease in ave- rage visual analogue scale from preoperative 6.5 points （range 3-9 points） to 2.0 points （range 0-5 points）, Constant score from 59% to 91% and American Shoulder and Elbow Surgeons shoulder score from 65 to 93 points postoperatively. These results improved or at least remained stationary on midterm follow-up, and no deterioration was recorded at an average follow-up of 46 months. Conclusion： This midterm outcome analysis of the artificial ligament prosthesis is the first such follow-up study with prosthesis. Our results are encouraging and justify the further use and evaluation of this relatively new and easily reproducible technique.

关键词： Acromioclavicularjoint Prostheses and implants Reconstructive surgical procedures Ligaments

Lead Induced Oxidative Stress: Beneficial Effects of Kombucha Tea

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Biomedical and Environmental Sciences 2003年第3期16卷 276-282页

作者： P.DIPTI B.YOGESH A.K.KAIN T.PAULINE B.ANJU M.SAIRAM B.SINGH S.S.MONGIA G.ILAVAZHAGAN devendra kumar W.SELVAMURTHY Defence Institute of Physiology and Allied Sciences Lucknow RoadTimarpurDelhi-110054.India

Objective To evaluate the effect of oral administration of Kombucha tea (K-tea) on lead induced oxidative stress. Methods Sprague Dawley rats were administered 1 mL of 3.8% lead acetate solution daily alone or in combination with K-tea orally for 45 d, and the antioxidant status and lipid peroxidation were evaluated. Results Oral administration of lead acetate to rats enhanced lipid peroxidation and release of creatine phosphokinase and decreased levels of reduced glutathione (GSH) and antioxidant enzymes (superoxide dismutase, SOD and glutathione peroxidase, GPx). Lead treatment did not alter humoral immunity, but inhibited DTH response when compared to the control. Lead administration also increased DNA fragmentation in liver. Oral administration of Kombucha tea to rats exposed to lead decreased lipid peroxidation and DNA damage with a concomitant increase in the reduced glutathione level and GPx activity. Kombucha tea supplementation relieved the lead induced immunosuppression to appreciable levels. Conclusion The results suggest that K-tea has potent antioxidant and immunomodulating properties.

关键词： Lead Oxidative stress Kombucha tea Antioxidant activity

Comparative Evaluation of Humic Substances: Effect at Cell Level and Chlorophyll Retention during Accelerated Senescence

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American Journal of Plant Sciences 2023年第6期14卷 638-652页

作者： Tirichy Ganesh Prasad Joz Liza Bargur Jayaram Manjushree Ramarao Nagalakshmi kumar devendra P J Margo Pvt. Ltd. Agritech Research Centre Bangalore India

The influence of humic substances (HS) formulations derived from sedimentary and compost sources was studied on plant growth at cell level and chlorophyll retention during accelerated senescence of leaf tissue. The direct effect of HS formulations was studied on cell expansion using cucumber and radish cotyledon expansion test. The cucumber hypocotyl elongation test was used to study the effect on cell elongation. Chlorophyll pigment retention in excised leaf tissue incubated in dark with high temperature was assessed to study the effect on leaf senescence. Explant tissues were incubated directly in the solutions of the formulations at the concentration recommended for foliar application to the crop plants. HS formulations showed significant variations in their direct bio-stimulatory effects. Formulations derived from compost sources were found superior in terms of inducing a direct stimulatory effect on cell expansion and cell elongation and in maintaining chlorophyll pigment retention during accelerated senescence. HS from sedimentary sources stimulated cell expansion and delayed chlorophyll degradation to a lesser extent compared to HS from compost. However, HS formulations derived from sedimentary sources used in this study were not effective in inducing cell elongation in the cucumber hypocotyl elongation test. The direct bio-stimulatory effect of HS formulations differed significantly between the formulations that were evaluated.

关键词： Biostimulants Chlorophyll Compost Cotyledon Humic Substances Hypocotyl Sedimentary

Molecular Characterization of <i>Pseudomonas</i>spp. Isolated from Root Nodules of Various Leguminous Plants of Shekhawati Region, Rajasthan, India

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American Journal of Plant Sciences 2012年第1期3卷 60-63页

作者： Sakshi Issar Saroj Sharma devendra kumar Choudhary Hemant kumar Gautam R. K. Gaur 不详

Plant growth promontory Pseudomonas strains were isolated from root nodules of five plant species, viz., Trifolium pretense, Cicer arietinum, Amaranthus polygamus, Vigna mungo, and Trigonella foenum;that plants were denizen of Shekhawati region of Rajasthan. A total of 8 bacterial isolates were evaluated for growth promotion using PGP properties. Partial 16S rDNA sequencing data showed that these 8 bacterial isolates belonged to genus Pseudomonas. MEGA 4.0.2, software was used to construct a neighbor joining tree by employing boot strap method. Result exhibited significant diversity among recovered Pseudomonas strains.

关键词： PGPRs 16S Sequencing Pseudomonas Root-Nodule Bacteria 16S rDNA

Cancer chemotherapy and beyond:Current status,drug candidates,associated risks and progress in targeted therapeutics

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Genes & Diseases 2023年第4期10卷 1367-1401页

作者： Uttpal Anand Abhijit Dey Arvind K.Singh Chandel Rupa Sanyal Amarnath Mishra devendra kumar Pandey Valentina De Falco Arun Upadhyay Ramesh Kandimalla Anupama Chaudhary Jaspreet Kaur Dhanjal Saikat Dewanjee Jayalakshmi Vallamkondu José M.Pérez de la Lastra Department of Life Sciences Ben-Gurion University of the NegevBeer-Sheva 84105Israel Department of Life Sciences Presidency UniversityKolkataWest Bengal 700073India Center for Disease Biology and Integrative Medicine Faculty of MedicineThe University of TokyoTokyo 113-0033Japan Department of Botany Bhairab Ganguly College(affiliated to West Bengal State University)KolkataWest Bengal 700056India Faculty of Science and Technology Amity Institute of Forensic SciencesAmity University Uttar PradeshNoida 201313India Department of Biotechnology School of Bioengineering and BiosciencesLovely Professional UniversityPhagwaraPunjab 144411India Institute of Endocrinology and Experimental Oncology(IEOS) National Research Council(CNR)Department of Molecular Medicine and Medical Biotechnology(DMMBM)University of Naples Federico IINaples 80131Italy Department of Biochemistry School of Life SciencesCentral University of RajasthanBandar SindariKishangarh AjmerRajasthan 305817India CSIR-Indian Institute of Chemical Technology HyderabadTelangana 500007India Department of Biochemistry Kakatiya Medical CollegeWarangalTelangana 506007India Orinin-BioSystems LE-52Lotus Road 4CHD CityKarnalHaryana 132001India Department of Computational Biology Indraprastha Institute of Information Technology Delhi(IIIT-D)Okhla Industrial EstatePhase IIINew Delhi 110020India Advanced Pharmacognosy Research Laboratory Department of Pharmaceutical TechnologyJadavpur UniversityKolkata 700032India Department of Physics National Institute of Technology-WarangalWarangalTelangana 506004India Biotechnology of Macromolecules Research Group Instituto de Productos Naturales y AgrobiologíaIPNA-CSICSan Cristóbal de La Laguna 38206TenerifeSpain

Cancer is an abnormal state of cells where they undergo uncontrolled proliferation and produce aggressive malignancies that causes millions of deaths every *** the new understanding of the molecular mechanism(s)of disease progression,our knowledge about the disease is snowballing,leading to the evolution of many new therapeutic regimes and their successive *** the past few decades,various combinations of therapies have been pro-posed and are presently employed in the treatment of diverse *** drug therapy,immunotherapy,and personalized medicines are now largely being employed,which were not common a few years *** field of cancer discoveries and therapeutics are evolving fast as cancer type-specific biomarkers are progressively being identified and several types of cancers are nowadays undergoing systematic therapies,extending patients’disease-free survival *** growing evidence shows that a systematic and targeted approach could be the future of cancer medicine,chemotherapy remains a largely opted therapeutic option despite its known side effects on the patient’s physical and psychological ***-apeutic agents/pharmaceuticals served a great purpose over the past few decades and have remained the frontline choice for advanced-stage malignancies where surgery and/or radiation therapy cannot be prescribed due to specific *** present report succinctly reviews the existing and contemporary advancements in chemotherapy and assesses the status of the enrolled drugs/pharmaceuticals;it also comprehensively discusses the emerging role of specific/targeted therapeutic strategies that are presently being employed to achieve better clinical success/survival rate in cancer patients.

关键词： Antimicrobial peptides Cancer therapies Clinical trials Combination therapy Immunotherapy Patient survival Personalized medicine Targeted drug delivery

Multi-modality imaging review of congenital abnormalities of kidney and upper urinary tract

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World Journal of Radiology 2016年第2期8卷 132-141页

作者： Subramaniyan Ramanathan devendra kumar Maneesh Khanna Mahmoud Al Heidous Adnan Sheikh Vivek Virmani Yegu Palaniappan Department of Clinical Imaging Al-Wakra Hospital Hamad Medical Corporation Department of Medical Imaging the Ottawa Hospital Department of Radiology Dr.Everett Chalmers Hospital Shree Meenakshi Multi Specialty Hospital

Congenital abnormalities of the kidney and urinary tract(CAKUT) include a wide range of abnormalities ranging from asymptomatic ectopic kidneys to life threatening renal agenesis(bilateral). Many of them are detected in the antenatal or immediate postnatal with a significant proportion identified in the adult population with varying degree of severity. CAKUT can be classified on embryological basis in to abnormalities in the renal parenchymal development, aberrant embryonic migration and abnormalities of the collecting system. Renal parenchymal abnormalities include multi cystic dysplastic kidneys, renal hypoplasia, number(agenesis or supernumerary), shape and cystic renal diseases. Aberrant embryonic migration encompasses abnormal location and fusion anomalies. Collecting system abnormalities include duplex kidneys and Pelvi ureteric junction obstruction. Ultrasonography(US) is typically the first imaging performed as it is easily available, noninvasive and radiation free used both antenatally and postnatally. Computed tomography(CT) and magnetic resonance imaging(MRI) are useful to confirm the ultrasound detected abnormality, detection of complex malformations, demonstration of collecting system and vascular anatomy and more importantly for early detection of complications like renal calculi, infection and malignancies. As CAKUT are one of the leading causes of end stage renal disease, it is important for the radiologists to be familiar with the varying imaging appearances of CAKUT on US, CT and MRI, thereby helping in prompt diagnosis and optimal management.

关键词： Congenital abnormalities Kidney Urinary tract Multi cystic dysplastic Kidneys Pelvi ureteric junction obstruction Computed tomography urography Congenital abnormalities of the Kidney and urinary tract End stage renal disease Horse shoe Kidneys

Corrigendum to'Cancer chemotherapy and beyond:Current status,drug candidates,associated risks and progress in targeted therapeutics'[Genes&Diseases 10(2023)1367-1401]

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Genes & Diseases 2024年第4期11卷 426-427页

作者： Uttpal Anand Abhijit Dey Arvind K.Singh Chandel Rupa Sanyal Amarnath Mishra devendra kumar Pandey Valentina De Falco Arun Upadhyay Ramesh Kandimalla Anupama Chaudhary Jaspreet Kaur Dhanjal Saikat Dewanjee Jayalakshmi Vallamkondu Jose M.Perez de la Lastra Department of Life Sciences Ben-Gurion University of the NegevBeer-Sheva 84105Israel Department of Life Sciences Presidency UniversityKolkataWest Bengal 700073India Center for Disease Biology and Integrative Medicine Faculty of MedicineThe University of TokyoTokyo 113-0033Japan Department of Botany Bhairab Ganguly College(affliated to West Bengal State University)KolkataWest Bengal 700056India Faculty of Science and Technology Amity Institute of Forensic SciencesAmity University Uttar PradeshNoida 201313India Department of Biotechnology School of Bioengineering and BiosciencesLovely Professional UniversityPhagwaraPunjab 144411India Institute of Endocrinology and Experimental Oncology(IEOS) National Research Council(CNR)Department of Molecular Medicine and Medical Biotechnology(DMMBM)University of Naples FedericoⅡNaples 80131Italy Department of Biochemistry School of Life SciencesCentral University of RajasthanBandar SindariKishangarhAjmerRajasthan 305817India CSiR-indian Institute of Chemical Technology HyderabadTelangana 500007India Department of Biochemistry Kakatiya Medical CollegeWarangalTelangana 506007India Orinin-BioSystems LE-52Lotus Road 4CHD CityKarnalHaryana 132001India Department of Computational Biology Indraprastha Institute of Information Technology Delhi(ⅢT-D)Okhla Industrial EstatePhaseⅢNew Delhi 110020India Advanced Pharmacognosy Research Laboratory Department of Pharmaceutical TechnologyJadavpur UniversityKolkata 700032India Department of Physics National Institute of Technology-WarangalWarangalTelangana 506004India Biotechnology of Macromolecules Research Group Instituto de Productos Naturales y AgrobiologiaIPNA-CSICSan Cristobal de La Laguna 38206TenerifeSpain

In the published article,there was an error in the affiliation information about the first author Uttpal Anand[a].Instead of"Department of Life Sciences,Ben-Gurion University of the Negev,Beer-Sheva 84105,Israel",it should be"CytoGene Research&Development LLP,K-51,UPSIDA Industrial Area,Kursi Road(Lucknow),***,225001,Uttar Pradesh,India".The authors would like to apologize for any inconvenience caused and state that this does not change the scientific conclusions of thearticle inanyway.

关键词： Cancer Cor targeted

Discussion on“Dispersion characteristics of clayey soils containing waste rubber particles”[J Rock Mech Geotech Eng 15(2023)3050-3058]

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第9期16卷 3864-3865页

作者： Prithvendra Singh devendra Narain Singh Pintu kumar Saw Department of Civil Engineering Indian Institute of Technology BombayMumbai400076India

We read with great interest the recent article by Erenson(2023)entitled“Dispersion characteristics of clayey soils containing waste rubber particles”.The author has studied the dispersion characteristics of clayey soils containing different percentages of waste rubber particles(WRPs)by performing several tests(*** limit,linear shrinkage limit,double hydrometer,crumb test and pinhole test)and scanning electron microscopy(SEM)analysis on five clayey(***-activated bentonite,refined ball clay,Ukrainian kaolin,Avanos kaolin and Afyon clay)samples containing 0%,5%,10%and 15%*** should be noted that Erenson(2023)has presented some interesting observations,but there are some serious issues that we want to share through this discussion and request the author of the original paper to address them to avoid their persistence in the scientific literature.

关键词： Waste rubber particles Dispersion characteristics Clay Bentonite Scientific literature Discussion