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Epidemiology of pelvic fractures in adults: Our experience at a tertiary hospital

Chinese Journal of Traumatology 2019年第3期22卷 138-141页

作者： Subhajit ghosh Sameer Aggarwal Vishal kumar Sandeep Patel Prasoon kumar Department of Orthopedics Post Graduate Institute of Medical Education and Research (PGIMER)ChandigarhIndia

Purpose: Pelvic fractures are severe injuries and are often associated with multiple system injuries, exacerbating the overall outcome. In India, the incidence of pelvic fractures is on a rise due to suboptimal roads and traffics but related literature regarding the overall epidemiology of these injuries is scarce and scanty. Our aim was to study the epidemiology of patients admitted with pelvic fractures at a level 1 trauma centre in India. Methods: A 16-month (between September 2015 and December 2016) prospective observational study was carried out on trauma patients with pelvic fractures at a level 1 trauma centre of a tertiary care hospital. Demography of patients, mechanism of injuries and complications were recorded prospectively. Results: We observed 75 patients who presented with pelvic fractures, where 56 were males and 19 were females. Mean age of the study populationwas 37.57 years. Road traffic accidents were the most common mode of injuries. Lateral compression injuries were the most common pattern. Associated injuries frequently encountered were lower extremities and acetabulum fractures, blunt abdominal trauma, urogenital injuries and head injuries. Out of the 75 patients, 52 were treated surgically and 23 were managed by conservative methods. Associated injuries of the extremities, head, abdomen and urogenital system indicated a longer hospital stay. Conclusion: Pelvic fractures, although belong to a relatively rare trauma subset, cause a high morbidity and mortality with considerable burden on the economy. Proper road safety training and driving etiquettes along with its strict implementation in true sense and spirit are the need of the hour.

关键词： Pelvic fractures Epidemiology Incidence

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Performance analysis of STT-RAM with cross shaped free layer using Heusler alloys

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Journal of Semiconductors 2016年第1期37卷 47-50页

作者： Tangudu Bharat kumar Bahniman ghosh Bhaskar Awadhiya Ankit kumar Verma Department of Electronics and Communications Malaviya National Institute of Technology Microelectronics Research Center 10100 Burnet Road Bldg. 160 University of Texas at Austin Department of Electrical Engineering Indian Institute of Technology Kanpur Department of Electronics and Communications Manipal Institute of Technology Manipal University Electronics and Communication Engineering Department National Institute of Technology

We have investigated the performance of a spin transfer torque random access memory （STT-RAM） cell with a cross shaped Heusler compound based free layer using micromagnetic simulations. We have designed a free layer using a Cobalt based Heusler compound. Simulation results clearly show that the switching time from one state to the other state has been reduced, also it has been found that the critical switching current density （to switch the magnetization of the free layer of the STT RAM cell） is reduced.

关键词： spin transfer torque random access memory (STT-MRAM) micromagnetic simulation Heusler com-pound switching time critical switching current density

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A novel sub 20 nm single gate tunnel field effect transistor with intrinsic channel for ultra low power applications

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Journal of Semiconductors 2016年第5期37卷 30-34页

作者： Pranav kumar Asthana Yogesh Goswami Bahniman ghosh Department of Electrical Engineering Indian Institute of Technology Kanpur Microelectronics Research Center University of Texas at Austin

We propose a nanoscale single gate ultra thin body intrinsic channel tunnel field effect transistor using the charge plasma concept for ultra low power applications. The characteristics of TFETs （having low leakage） are improved by junctionless TFETs through blending advantages of Junctionless FETs （with high on current）. We further improved the characteristics, simultaneously simplifying the structure at a very low power rating using an InAs channel. We found that the proposed device structure has reduced short channel effects and parasitics and provides high speed operation even at a very low supply voltage with low leakage. Simulations resulted in Iovv of - 9 × 10-16A/um, IoN of ,-20uA/um, ION/IoFF of--2× 1010, threshold voltage of 0.057 V, subthreshold slope of 7 mV/dec and DIBL of 86 mV/V for PolyGate/HfO2/InAs TFET at a temperature of 300 K, gate length of 20 nm, oxide thickness of 2 nm, film thickness of 10 nm, low-k spacer thickness of 10 nm and VDD of 0.2 V.

关键词： band-to-band tunneling (BTBT) tunnel field effect transistor (TFET) junctionless tunnel field effecttransistor (JLTFET) ION/IOFF ratio low power

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Diversity of Middle Eocene Coralline Red Algae from the Prang Limestone(Shella Formation) of Jaintia Hills, Meghalaya, NE Himalaya, India with special emphasis on palaeoenvironment

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科学通报 2013年第S1期58卷 118-125页

作者： ghosh Amit kumar SARMA Ajanta SARKAR Suman Birbal Sahni Institute of Palaeobotany Department of Geology GC College

Palaeocene-Eocene carbonates of shallow marine sequence belonging to Shella Formation of Jaintia Group are well developed in the south of the Jaintia Hills, Meghalaya and represent an excellent outcrop of shelf sediments in North Eastern Himalaya, India. These outcrops are exposed along the southern fringe of Shillong Plateau. The Prang Limestone is the uppermost lithostratigraphic unit of the Shella Formation within the Jaintia Group. It is overlain by sand-shale alternation of the Kopili Formation and underlain by the Narpuh Sandstone. A rich assemblage of larger foraminifera including Nummulites, Discocyclina etc. has been recorded earlier from the Prang Limestone and based on the foraminiferal assemblage, a Middle Eocene to Early Late Eocene age has been assigned to the Prang Limestone. Thin section analysis of the Prang Limestone revealed the abundance of well preserved coralline red algae along with other well preserved and significant biogenic elements. Morpho-taxonomical study reveals that the algal flora is represented by seven species belonging to the families Hapalidiaceae(Subfamily: Melobesioideae), Corallinaceae(Subfamily: Mastophoroideae) and Sporolithaceae. The dominance of melobesioid and mastophoroid forms is the characteristic feature of this algal assemblage. Coralline algae occur mostly in encrusting growth form with orbitoid foraminifera and occasionally the coralline algae form rhodoliths. On this basis of algal forms it can be inferred that they thrived in a shallow, warm, shelf environment of normal salinity.

关键词： diversity Coralline algae taxonomy Middle Eocene Shella Formation Meghalaya NE Himalaya India

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Scope of machine learning applications for addressing the challenges in next-generation wireless networks

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CAAI Transactions on Intelligence Technology 2022年第3期7卷 395-418页

作者： Raj kumar Samanta Bikash Sadhukhan Hiranmay Samaddar Suvobrata Sarkar Chandan Koner Monidepa ghosh Department of CSE Dr.B.C.Roy Engineering CollegeDurgapurWest BengalIndia Department of CSE Techno International New TownKolkataWest BengalIndia

The convenience of availing quality services at affordable costs anytime and anywhere makes mobile technology very popular among *** to this popularity,there has been a huge rise in mobile data volume,applications,types of services,and number of ***,due to the COVID-19 pandemic,the worldwide lockdown has added fuel to this increase as most of our professional and commercial activities are being done online from *** massive increase in demand for multi-class services has posed numerous challenges to wireless network *** services offered through wireless networks are required to support this huge volume of data and multiple types of traffic,such as real-time live streaming of videos,audios,text,images etc.,at a very high bit rate with a negligible delay in transmission and permissible vehicular speed of the ***-generation wireless networks(NGWNs,i.e.5G networks and beyond)are being developed to accommodate the service qualities mentioned above and many ***,achieving all the desired service qualities to be incorporated into the design of the 5G network infrastructure imposes large challenges for designers and *** requires the analysis of a huge volume of network data(structured and unstructured)received or collected from heterogeneous devices,applications,services,and customers and the effective and dynamic management of network parameters based on this analysis in real *** the ever-increasing network heterogeneity and complexity,machine learning(ML)techniques may become an efficient tool for effectively managing these *** recent days,the progress of artificial intelligence and ML techniques has grown interest in their application in the networking *** study discusses current wireless network research,brief discussions on ML methods that can be effectively applied to the wireless networking domain,some tools available to support and customise efficient mobile system design,and some

关键词： machine learning network control next-generation wireless networks

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Hetero-gate-dielectric double gate junctionless transistor(HGJLT)with reduced band-to-band tunnelling effects in subthreshold regime

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Journal of Semiconductors 2014年第6期35卷 19-25页

作者： Bahniman ghosh Partha Mondal M.W.Akram Punyasloka Bal Akshay kumar Salimath Microelectronics Research Center 10100 Burnet RoadUniversity of Texas at Austin Department of Electrical Engineering Indian Institute of Technology Kanpur

We propose a hetero-gate-dielectric double gate junctionless transistor （HGJLT）, taking high-k gate insulator at source side and low-k gate insulator at drain side, which reduces the effects ＆band-to-band tunnelling （BTBT） in the sub-threshold region. A junctionless transistor （JLT） is turned off by the depletion of carriers in the highly doped thin channel （device layer） which results in a significant band overlap between the valence band of the channel region and the conduction band of the drain region, due to off-state drain bias, that triggers electrons to tunnel from the valence band of the channel region to the conduction band of the drain region leaving behind holes in the *** effects of band-to-band tunnelling increase the sub-threshold leakage current, and the accumulation of holes in the channel forms a parasitic bipolar junction transistor （n-p-n BJT for channel JLT） in the lateral direction by the source （emitter）, channel （base） and drain （collector） regions in JLT structure in off-state. The proposed HGJLT reduces the subthreshold leakage current and suppresses the parasitic BJT action in off-state by reducing the band-to-band tunnelling probability.

关键词： hetero-gate-dielectric double gate junctionless transistor band-to-band tunnelling off-state

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Impeded Carbohydrate Metabolism in Rice Plants under Submergence Stress

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Rice science 2011年第2期18卷 116-126页

作者： Malay kumar ADAK Nirmalya ghosh Dilip kumar DASGUPTA Sudha GUPTA Plant Physiology and Plant Molecular Biology Research Unit Department of Botany University of Kalyani Department of Crop Physiology University of Calcutta

The detrimental effects of submergence on physiological performances of some rice varieties with special references to carbohydrate metabolisms and their allied enzymes during post-flowering stages have been documented and clarified in the present investigation. It was found that photosynthetic rate and concomitant translocation of sugars into the panicles were both related to the yield. The detrimental effects of the complete submergence were recorded in generation of sucrose, starch, sucrose phosphate synthase and phosphorylase activity in the developing panicles of the plants as compared to those under normal or control （i.e. non-submerged） condition. The accumulation of starch was significantly lower in plants under submergence and that was correlated with ADP-glucose pyrophosphorylase activity. Photosynthetic rate was most affected under submergence in varying days of post-flowering and was also related to the down regulation of Ribulose bisphosphate carboxylase activity. However, under normal or control condition, there recorded a steady maintenance of photosynthetic rate at the post-flowering stages and significantly higher values of Ribulose bisphosphate carboxylase activity. Still, photosynthetic rate of the plants under both control and submerged conditions had hardly any significant correlation with sugar accumulation and other enzymes of carbohydrate metabolism like invertase with grain yield. Finally, plants under submergence suffered significant loss of yield by poor grain filling which was related to impeded carbohydrate metabolism in the tissues. It is evident that loss of yield under submergence is attributed both by lower sink size or sink capacity （number of panicles, in this case） as well as subdued carbohydrate metabolism in plants and its subsequent partitioning into the grains.

关键词： photosynthesis sucrose starch phosphorylase grain yield rice submergence

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Mathematical model of zika virus dynamics with vector control and sensitivity analysis

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Infectious Disease Modelling 2020年第1期5卷 23-41页

作者： Sudhanshu kumar Biswas Uttam ghosh Susmita Sarkar Department of Mathematics Sripat Singh CollegeMurshidabadWest BengalIndia Department of Applied Mathematics University of CalcuttaKolkataIndia

In this paper,we have developed and analyzed a deterministic Zika model considering both vector and sexual transmission route with the effect of human awareness and vector control in the absence of disease induce *** formulate the model,we assume that the Zika virus is being first transmitted to human by mosquito bite,and then it is being transmitted to his or her sexual *** system contains at most three equilibrium points among them one is the disease free and other two are endemic equilibrium points,exists under certain *** theoretical analysis shows that the diseases-free equilibrium is locally and globally asymptotically stable if the basic reproduction number is less than *** we have established that endemic equilibrium point which is locally asymptotically stable if the basic reproduction number is greater than *** system exhibits backward bifurcation when the transmission probability per biting of susceptible mosquito with infected humans crosses the critical *** estimate the model parameters and validate the model by fitting the model with the reported Zika infected human data from 1 to 36 week of 2016 Zika outbreak in ***,using the normalised forward sensitivity index method we have established that the model parameter mosquito biting rate,recruitment rate of mosquito,transmission probability per biting of Susceptible(infected)humans with infected(susceptible)mosquito,rate of awareness in host population,recovery rates of infected human are most sensitive parameters of the considered Zika ***,some conclusions are given to control the spreading of the Zika disease.

关键词： Zika virus Vector transmission Sexual transmission Basic reproduction number Stability analysis Backward bifurcation Sensitivity analysis

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Enhancement and Function of the Piezoelectric Effect in Polymer Nanofibers

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Accounts of Materials Research 2022年第9期3卷 900-912页

作者： Luana Persano Sujoy kumar ghosh Dario Pisignano NEST Istituto Nanoscienze-CNR and Scuola Normale SuperioreI-56127 PisaItaly Dipartimento di Fisica Universitàdi PisaI-56127 PisaItaly

CONSPECTUS:The realization of intelligent,self-powered compo-nents and devices exploiting the piezoelectric effect at large scale might greatly contribute to improve our efficiency in using resources,albeit a profound redesign of the materials and architectures used in current electronic systems would be *** is a property of certain materials to generate an electrical bias in response to a mechanical *** effect enables energy to be harvested from strain and vibration modes,and to sustain the power of actuators,transducers,and sensors in integrated networks,such as those necessary for the Internet of Thing.

关键词： fibers piezoelectric realization

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Preparation of rice fermented food using root of Asparagus racemosus as herbal starter and assessment of its nutrient profle

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Systems Microbiology and Biomanufacturing 2022年第1期2卷 147-156页

作者： Papan kumar Hor Debabrata Goswami Kuntal ghosh Miklós Takó Suman kumar Halder Keshab Chandra Mondal Department of Microbiology Vidyasagar UniversityMidnaporeWest Bengal 721102India Department of Biological Sciences Midnapore City CollegeMidnaporeIndia Department of Microbiology Faculty of Science and InformaticsUniversity of SzegedSzegedHungary

The popularity of traditional fermented food products is based on their *** addition of a starter brings consistent,desirable,and predictable food changes with improved nutritive,functional,and sensory *** addition of a mixture of plant residues as a starter or source of microbes is an age-old practice to prepare traditional fermented food and beverages,and most of the reported data on traditional foods were based on the analysis of the fnal *** contribution of an individual starter component(plant residue)is not experimentally substantiated for any traditional fermented food,but this data are very essential for the formulation of an efective *** this study,Asparagus racemosus,which used as a common ingredient of starter for preparation of rice fermented food in the Indian sub-continent,was used as a starter for the preparation of rice fermented food under laboratory scale,and its microbial and nutrient profle was *** fermented product was a good source of lactic acid bacteria,Bifdobacterium sp.,yeast,*** food product was acidic and enriched with lactic acid and acetic acid with titratable acidity of 0.65%.The content of protein,fat,minerals,and vitamins(water-soluble)was considerably *** notably,oligosaccharide(G3-matotriose),unsaturated fatty acids(ω3,ω6,ω7,andω9),and a pool of essential and non-essential amino acids were enriched in the newly formulated ***,the herbal starter-based rice fermented food would provide important macro-and *** could also deliver large numbers of active microorganisms for the sustainability of ***,the selected plant part conferred its suitability as an efective starter for the preparation of healthier rice-based food products.

关键词： Food fermentation Starter Asparagus racemosus LAB Bifdobacterium spp. Macro-and micronutrients

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