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International Journal of Minerals,Metallurgy and Materials 2019年第1期26卷 64-75页

作者： Renuprava Dalai Siddhartha das Karabi das Department of Metallurgical and Materials Engineering Indian Institute of Technology

Two austenitic Mn steels(Fe-17 Mn and Fe-17 Mn-3 Al(wt%, so as the follows)) were subjected to thermomechanical processing(TMP) consisting of forging followed by solutionization and hot rolling. The rolled samples were annealed at 650 and 800°C to relieve the internal stress and to induce recrystallization. The application of TMP and heat treatment to the Fe-17 Mn/Fe-17 Mn-3 Al steels refined the austenite grain size from 169 μm in the as-solutionized state to 9–13 μm, resulting in a substantial increase in hardness from HV 213 to HV 410 for the Fe-17 Mn steel and from HV 210 to HV 387 for the Fe-17 Mn-3 Al steel. The elastic modulus values, as evaluated by the nanoindentation technique, increased from(175 ± 11) to(220 ± 12) GPa and from(163 ± 15) to(205 ± 13) GPa for the Fe-17 Mn and Fe-17 Mn-3 Al steels, respectively. The impact energy of the thermomechanically processed austenitic Mn steels was lower than that of the steels in their as-solutionized state. The addition of Al to the Fe-17 Mn steel decreased the hardness and elastic modulus but increased the impact energy.

关键词： austenitic manganese steel(AMS) thermomechanical processing(TMP) microstructure property hardness elastic modulus

Lateral dipole moments induced by all-cis-pentafluorocyclohexyl groups cause unanticipated effects in self-assembled monolayers

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Nano Research 2023年第8期16卷 11030-11041页

作者： Christian Fischer Saunak das Qingzhi Zhang Yangbiao Liu Lothar Weinhardt David O’Hagan Michael Zharnikov Andreas Terfort Institute of Inorganic and Analytical Chemistry Goethe University FrankfurtMax-von-Laue-Straße 760438 Frankfurt am MainGermany Applied Physical Chemistry Heidelberg UniversityIm Neuenheimer Feld 25369120 HeidelbergGermany School of Chemistry University of St AndrewsNorth HaughSt AndrewsFifeKY169STUK Institute for Photon Science and Synchrotron Radiation Karlsruhe Institute of Technology(KIT)Hermann-v.-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany Institute for Chemical Technology and Polymer Chemistry(ITCP) Karlsruhe Institute of Technology(KIT)Engesserstr.18/2076128 KarlsruheGermany Department of Chemistry and Biochemistry University of NevadaLas Vegas(UNLV)4505 Maryland ParkwayLas VegasNV 89154-4003USA

All-cis-hexafluoro-and all-cis-pentafluoro-cyclohexane(PFCH)derivatives are new kinds of materials,the structures and properties of which are dominated by the highly dipolar Janus-face ***,we report on the effects of integrating the PFCH groups into self-assembled monolayers(SAMs)of alkanethiolates on Au(111).Monolayers with an odd(eleven)and even(twelve)number of methylene groups were characterized in detail by several complementary experimental tools,supported by theoretical ***,all the data show a high similarity of both kinds of monolayers,nearly lacking the typically observed odd-even *** new monolayers have a packing density about 1/3 lower than that of non-substituted alkanethiolate monolayers,caused by the bulkiness of the PFCH *** orientations of the PFCH groups and the alkyl chains could be determined independently,suggesting a conformation similar to the one found in the solid state structure of an analogous *** in the SAMs the PFCH groups are slightly tilted away from the surface normal with the axial fluorine atoms pointing downwards,most of the dipole moments of the group remain oriented parallel to the surface,which is a unique feature for a SAM *** consequences are much lower water contact angles compared to other partly fluorinated SAMs as well as rather moderate work function *** interaction between the terminal PFCH moieties results in an enhanced stability of the PFCH-decorated SAMs toward exchange reaction with potential molecular substituents in spite of the lower packing density of these films.

关键词： odd-even-effects work function self-assembled monolayer(SAM) kinetic stability infrared-reflection absorption spectroscopy X-ray photoelectron spectroscopy

The proteome landscape of the root cap reveals a role for the jacalin-associated lectin JAL10 in the salt-induced endoplasmic reticulum stress pathway

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Plant Communications 2023年第6期4卷 179-196页

作者： Krishna Kodappully das Ankita Mohapatra Abin Panackal George Sreenivas Chavali Katja Witzel Eswarayya Ramireddy Department of Biology Indian Institute of Science Education and Research(IISER)TirupatiTirupati 517507Andhra PradeshIndia Leibniz Institute of Vegetable and Ornamental Crops Theodor-Echtermeyer-Weg 114979 GroßbeerenGermany

Rapid climate change has led to enhanced soil salinity,one of the major determinants of land degradation,resulting in low agricultural *** has a strong negative impact on food security and environmental *** display various physiological,developmental,and cellular responses to deal with salt *** studies have highlighted the root cap as the primary stress sensor and revealed its crucial role in *** root cap covers the primary root meristem and is the first cell type to sense and respond to soil salinity,relaying the signal to neighboring cell ***,it remains unclear how root-cap cells perceive salt stress and contribute to the salt-stress ***,we performed a root-cap cell-specific proteomics study to identify changes in the proteome caused by salt *** study revealed a very specific salt-stress response pattern in root-cap cells compared with non-rootcap cells and identified several novel proteins unique to the root ***-cap-specific protein–protein interaction(PPI)networks derived by superimposing proteomics data onto known global PPI networks revealed that the endoplasmic reticulum(ER)stress pathway is specifically activated in root-cap cells upon salt ***,we identified root-cap-specific jacalin-associated lectins(JALs)expressed in response to salt stress.A JAL10-GFP fusion protein was shown to be localized to the *** of jal10 mutants indicated a role for JAL10 in regulating the ER stress pathway in response to *** together,our findings highlight the participation of specific root-cap proteins in salt-stress response ***,root-cap-specific JAL proteins and their role in the salt-mediated ER stress pathway open a new avenue for exploring tolerance mechanisms and devising better strategies to increase plant salinity tolerance and enhance agricultural productivity.

关键词： Arabidopsis root cap cell-type specific proteomics salt stress ER stress jacalin-associated lectin

Advancing MXene-based integrated microsystems with microsupercapacitors and/or sensors:Rational design,key progress,and challenging perspectives

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Journal of Materiomics 2023年第6期9卷 1242-1262页

作者： Jin Jia Yuanyuan Zhu Pratteek das Jiaxin Ma Sen Wang Guang Zhu Zhong-Shuai Wu Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes Suzhou UniversitySuzhou 234000China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Shijingshan DistrictBeijing 100049China Dalian National Laboratory for Clean Energy Chinese Academy of SciencesDalian 116023China

The escalating demand for micro/nano-sized devices,such as micro/nano-robots,intelligent portable/wearable microsystems,and implantable medical microdevices,necessitates the expeditious development of integrated microsystems incorporating energy conversion,storage,and *** bottlenecks in microscale energy storage/sensors and their integrated systems are being addressed by exploring new technologies and new materials,e.g.,MXene,holding great potential for developing lightweight and deformable integrated *** review summarizes the latest progress and milestones in the realization of MXene-based micro-supercapacitors(MSCs)and sensor arrays,and thus discusses the design fundamentals and key advancements of MXene-based energy conversion-storageconsumption integrated ***,we outline the key challenges in fabricating MXenebased MSCs/sensors and their self-powered integrated microsystems,which is crucial for their practical ***,we illuminate viable solutions to such unsolved issues and highlight the exciting opportunities.

关键词： MXene Micro-supercapacitors Sensors Self-powered Integrated microsystem

New method for rekindling the explosive waves in Maxwellian space plasmas

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Plasma Science and Technology 2020年第12期22卷 48-58页

作者： G C das Kalikadas Road Byelane HazraparaCoochbehar-736101West BengalIndia

Our interest is to study the nonlinear wave phenomena in complex plasma constituents with Maxwellian electrons and ions. The main aim is to use a new method known as the(G′/G)method to exhibit the effects of dust charge fluctuations on the evolution of nonlinear waves. The coherent features of the shock and solitary waves along with the generation of high-energy waves have been amplified through the solution of the Korteweg–de Vries–Burgers equation,and the different natures of the waves were found successfully. Results are discussed graphically with the thoughtful choice of typical plasma parameters from different space plasma environments, exactly those found in cosmic dusty plasmas laden in ionospheric auroral region,radial spokes of Saturn's rings, planetary nebulae and solar F-corona region. All conclusions are in good accordance with the actual occurrences and could be of interest to further investigations of space. Moreover, the applicability of the present method is hoped to be a great enhancement by its use as ingenious mechanism used to evaluate the soliton dynamics and Burgers shock waves.

关键词： Maxwellian complex plasma nonlinear waves soliton and shock propagation (G′/G)method space plasmas

Deoxyribonucleic acid methylation driven aberrations in pancreatic cancer-related pathways

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World Journal of Gastrointestinal Oncology 2023年第9期15卷 1505-1519页

作者： Akash Bararia Amlan das Sangeeta Mitra Sudeep Banerjee Aniruddha Chatterjee Nilabja Sikdar Human Genetics Unit Indian Statistical InstituteKolkata 700108India Department of Biochemistry Royal Global UniversityAssam 781035India Department of Biochemistry and Biophysics University of KalyaniWest Bengal 741235India Department of Gastrointestinal Surgery Tata Medical CenterKolkata 700160India Department of Pathology Dunedin School of MedicineUniversity of OtagoDunedin 9054New Zealand School of Health Sciences and Technology University of Petroleum and Energy StudiesDehradun 248007India

Pancreatic cancer(PanCa)presents a catastrophic disease with poor overall survival at advanced stages,with immediate requirement of new and effective treatment *** genetic mutations,epigenetic dysregulation of signaling pathway-associated enriched genes are considered as novel therapeutic *** beneath the deoxyribonucleic acid methylation and its utility in developing of epi-drugs in PanCa are under *** of epigenetic medicines with conventional cytotoxic treatments or targeted therapy are promising options to improving the dismal response and survival rate of PanCa *** studies have identified potentially valid pathways that support the prediction that future PanCa clinical trials will include vigorous testing of epigenomic *** thus promises to generate a significant amount of new knowledge of biological and medical *** review could identify various components of epigenetic mechanisms known to be involved in the initiation and development of pancreatic ductal adenocarcinoma and related precancerous lesions,and novel pharmacological strategies that target these components could potentially lead to *** aim to highlight the possibilities that exist and the potential therapeutic interventions.

关键词： Methylation driven pathways Pancreatic cancer methylation markers Signaling pathway targeted therapy PanCa enriched methylated pathway Pre-cancer methylated pathways

Design of Energy Efficient WSN Using a Noble SMOWA Algorithm

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Computers, Materials & Continua 2022年第8期72卷 3585-3600页

作者： Avishek Banerjee Deepak Garg Victor das Laxminarayan Sahoo Ira Nath Vijayakumar Varadarajan Ketan Kotecha Department of Computer Science and Engineering Bennett UniversityGreater Noida201310India Department of Information Technology Asansol Engineering CollegeAsansol713305India Department of Computer and Information Science Raiganj UniversityRaiganj733134India Department of Computer Science and Engineering JIS College of EngineeringKalyani741235India School of Computer Science and Engineering University of New South WalesSydneyAustralia Symbiosis Centre for Applied Artificial Intelligence Symbiosis International(Deemed University)PuneIndia

In this paper,the establishment of efficientWireless Sensor Network(WSN)networks has been projected to minimize the consumption of energy using a new Self-adaptive Multi-Objective Weighted Approach(SMOWA)algorithm for solving a multi-objective *** Different WSN nodes deployment policies have been proposed and applied in this paper to design an efficientWireless Sensor Network to minimize energy *** that,the cluster head for each cluster has been selected with the help of the duty *** configuring the WSN networks,the SMOWA algorithms have been developed to obtain the minimum energy consumption for the *** minimization,as well as the amount of day-saving,has been calculated for the differentWSNswhich has been configured through different deployment *** major finding of the research paper is to improve the durability of Wireless Sensor Network(i)applying different deployment strategies:(Random,S pattern and nautilus shell pattern),and(ii)using a new Meta-heuristic algorithm(SMOWA Algorithm).In this research,the lifetime of WSN has been increased to a significant *** choose the best result set from all the obtained results set some constraints such as“equivalent distribution”,“number of repetitions”,“maximum amount energy storage by a node”has been set to an allowable range.

关键词： Wireless Sensor Network(WSN) Self-adaptive Multi-Objective Weighted Approach(SMOWA) deployment strategies Meta-heuristicMethods energy minimization duty cycle

Clinical challenges of glycemic control in the intensive care unit:A narrative review

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World Journal of Clinical Cases 2022年第31期10卷 11260-11272页

作者： Roshni Sreedharan Adriana Martini Gyan das Nida Aftab Sandeep Khanna Kurt Ruetzler Anesthesiology Institute Cleveland ClinicClevelandOH 44195United States

Glucose control in patient admitted to the intensive care unit has been a topic of much debate over the past 20 *** harmful effects of uncontrolled hyperglycemia and hypoglycemia in critically ill patients is well *** a large clinical trial in 2001 demonstrated significant mortality and morbidity benefits with tight glucose control in this patient population,the results could not be replicated by other ***“Normoglycemia in Intensive Care Evaluation-Survival Using Glucose Algorithm Regulation”trial in 2009 established that tight glucose control was not only of no benefit,but in fact harmful due to the significant risk of *** current guidelines suggest a moderate approach with the initiation of intravenous insulin therapy in critically ill patients when the blood glucose level is above 180 mg/*** most important factor that underpins glycemic management in intensive care unit patients is the consequent prevention of *** glucose monitoring strategies and insulin protocols need to be implemented in order to achieve this goal.

关键词： Diabetes management Intensive care unit Anesthesiology

Comparison of gliclazide vs linagliptin on hypoglycemia and cardiovascular events in type 2 diabetes mellitus: A systematic review

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World Journal of Diabetes 2022年第12期13卷 1168-1183页

作者： Viswanathan Mohan Subhash Wangnoo Sambit das Rajnish Dhediya Kumar Gaurav Department of Diabetes Madras Diabetes Research Foundation&Dr Mohan’s Diabetes Specialties CentreChennai 600086Tamil NaduIndia Department of Diabetes Apollo Hospital Education and Research FoundationNew Delhi 110001India Department of Endocrinology Endeavour ClinicsBhubaneswar 750017India Medical Affairs Dr.Reddy’s Laboratories LtdHyderabad 500016India

BACKGROUND Cardiovascular outcome trials have demonstrated cardiovascular safety of glimepiride(a sulfonylureas) against dipeptidyl peptidase-4 inhibitor ***(another newer sulfonylureas) has shown similar glycemic efficacy and 50% decreased risk of hypoglycemia compared to *** Considering the absence of cardiovascular outcome trials for gliclazide, we decided to conduct a systematic review of the literature to assess the cardiovascular(CV) safety by assessing the risk for major adverse CV events and hypoglycemia risk of gliclazide vs linagliptin in patients with type 2 diabetes(T2D).METHODS This systematic review followed the current Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to analyze all the clinical studies published from 2008 that compared the two drugs in patients with T2D with no risk of CV disease(CVD). We included only evidence designated high quality by the Oxford Center for Evidence-based Medicine-Levels of *** Eight clinical studies were included in the narrative descriptive analysis(gliclazide: 5 and linagliptin: 3). The CV safety of gliclazide in the Action in Diabetes and Vascular Disease: Preterax and Diamicron Modified Release Controlled Evaluation trial and of linagliptin in the Cardiovascular and Renal Microvascular Outcome Study With Linagliptin(CARMELINA) and CARdiovascular Outcome study of LINAgliptin vs glimepiride in patients with T2D(CAROLINA)trials were excluded from the comparative analysis as these trials demonstrated CV and hypoglycemia benefits in patients at high risk of CVD. However, since these are landmark trials,they were discussed in brief to show the CV benefits and low hypoglycemia risk of gliclazide and linagliptin. We did not find any study comparing gliclazide with linagliptin. Hence, direct comparison of their major adverse CV events and hypoglycemia risk could not be carried ***, the literature meeting the inclusion criteria showed that b

关键词： Linagliptin Gliclazide Hypoglycemia Major cardiovascular adverse events Type 2 diabetes

Exploring the factors affecting urban ecological risk:A case from an Indian mega metropolitan region

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Geoscience Frontiers 2023年第1期14卷 286-297页

作者： Manob das Arijit das Ashis Mandal Department of Geography University of Gour BangaMaldaWest BengalIndia

Assessment of ecological risk(ER)is a key approach to adapting and mitigating ecological deterioration in cities of developing *** developing countries,the ecological landscapes such as vegetation cover,water bodies,and wetlands are highly vulnerable due to rapid urban ***,urban ER(UER)assessment and its drivers are crucial to guide ecological protection as well as *** study aims to explore the spatiotemporal pattern of UER and the impact of urban spatial form on UER in the Kolkata Megacity Region(KMR),*** study developed a UER index and used spatial regression models across the urban *** ER has been assessed at city scale as well as grid-scale(2 km x 2 km and 5 km x 5 km)from 2000 to *** results showed that ER has substantially increased over the last 20 *** urban centres with very high and high ER substantially increased,*** 21.95%in 2000 to 31.70%in *** and its surrounding urban centres were mostly characterized by very high and high *** was influenced by spatial variables(such as land use and landscapes pattern).However,remote sensing parameters were weakly related to *** spatial lag model(SLM)(R^(2)=0.8686)was found to be better fit model than spatial error model(SEM)(R^(2)=0.8661)and ordinary linear regression model(OLS)(R^(2)=0.8641).Thus,the findings of the study can improve research and a comprehensive framework for urban ecological resources and provide a scientific basis for urban ecosystem planning and *** addition to this,it will guarantee the sustainable utilization of urban ecosystems.

关键词： Urban ecological risk Kolkata metropolitan area Ecosystem services Ecological protection Urban form