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Dynamical Casimir effect in superradiant light scattering by Bose Einstein condensate in an optomechanical cavity

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Chinese Physics B 2014年第2期23卷 151-160页

作者： Sonam Mahajan neha Aggarwal Aranya B Bhattacherjee ManMohan Department of Physics and Astrophysics University of Delhi Department of Physics ARSD CollegeUniversity of Delhi (South Campus) School of Physical Sciences Jawaharlal Nehru University

We investigate the effects of dynamical Casimir effect in superradiant light scattering by Bose-Einstein condensate in an optomechanical cavity. The system is studied using both classical and quantized mirror motions. The cavity frequency is harmonically modulated in time for both the cases. The main quantity of interest is the number of intracavity scattered photons. The system has been investigated under the weak and strong modulations. It has been observed that the amplitude of the scattered photons is more for the classical mirror motion than the quantized mirror motion. Also, initially, the amplitude of scattered photons is high for lower modulation amplitude than higher modulation amplitude. We also found that the behavior of the plots are similar under strong and weak modulations for the quantized mirror motion.

关键词： Bose-Einstein condensates dynamical Casimir effect superradiant light scattering optomechan- ical cavity

Medical management of COVID-19 clinic

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The Journal of Biomedical Research 2020年第6期34卷 416-421页

作者： neha Mehta Renli Qiao Division of Pulmonary Critical Care and Sleep MedicineDepartment of MedicineKeck School of MedicineUniversity of Southern CaliforniaLos AngelesCA 90033USA.

The start of the global pandemic secondary to the novel SARS-CoV-2 virus was a time of uncertainty and fear as it claimed the lives of many across the *** then,there has been a plethora of research designs and trials in order to understand what we can do to stop the spread of the *** and health care providers have utilized old medications and revamped them for current use such a convalescent plasma and steroids,as well as creating novel therapeutics,some with promising *** this article,we review the major therapeutic options currently available and look into what the future still holds in order to further our understanding of this mysterious disease.

关键词： COVID-19 treatment steroids remdesivir vaccine

Ocular prodrugs: Attributes and challenges

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Asian Journal of Pharmaceutical Sciences 2021年第2期16卷 175-191页

作者： Jagpreet kour neha Kumari Bharti Sapra Department of Pharmaceutical Sciences and Drug Research Punjabi UniversityPatiala 147001India

Ocular drug delivery is one of the most attention-grabbing and challenging endeavors among the numerous existing drug delivery *** a drug delivery point of view,eye is an intricate organ to investigate and *** spite of many limitations,advancements have been made with the intention of improving the residence time or permeation of the drug in the ocular *** bioavailability of topically administered drugs is the major issue pertaining to ocular drug *** efforts have been made towards improving precorneal residence time and corneal penetration,***,prodrugs and ionpairing,*** approach(chemical approach)has been explored by the formulation scientists to optimize the physicochemical and biochemical properties of drug molecules for improving ocular *** of ocular prodrugs is a challenging task as they should exhibit optimum chemical stability as well as enzymatic liability so that they are converted into parent drug after administration at the desired *** review will encompass the concept of derivatization and recent academic and industrial advancements in the field of ocular *** progression in prodrug designing holds a potential future for ophthalmic drug delivery.

关键词： Bioavailability Corneal permeability Esterase Stability Lipophilicity Ocular prodrugs

Role of beneficial microbial gene pool in mitigating salt/nutrient stress of plants in saline soils through underground phytostimulating signalling molecules

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Pedosphere 2023年第1期33卷 153-171页

作者： Shalini TIWARI Barkha shar.a neha BISHT Lakshmi TEWARI Department of Microbiology College of Basic Science&HumanitiesG.B.Pant University of Agriculture&TechnologyPantnagarUttarakhand 263145India

Soil salinity diminishes soil health and reduces crop yield,which is becoming a major global *** stress is one of the primary stresses,leading to several other secondary stresses that restrict plant growth and soil *** major secondary stresses induced in plants under saline-alkaline conditions include osmotic stress,nutrient limitation,and ionic stress,all of which negatively impact overall plant *** stressed conditions,certain beneficial soil microflora are known to have evolved phytostimulating mechanisms,such as the synthesis of osmoprotectants,siderophores,1-aminocyclopropane-1-carboxylic acid(ACC)deaminase activity,phosphate solubilization,and hormone production,which enhance plant growth and development while mitigating nutrient *** soil-borne bacterial species such as Bacillus,Pseudomonas,and Klebsiella and fungal strains such as Trichoderma,Aspergillus,Penicillium,Alternaria,and Fusarium also aid in reducing salinity ***-solubilizing microorganisms also assist in nutrient acquisition via both enzymatic and non-enzymatic *** the case of enzymatic processes,they produce different enzymes such as alkaline phosphatases and phytases,whereas non-enzymatic processes produce organic acids such as gluconic,citric,malic,and oxalic *** native halotolerant/halophilic soil microbial gene pool with multifunctional traits and stress-induced gene expression can be developed as suitable bio-inoculants to enhance stress tolerance and optimize plant growth in saline soils.

关键词： abiotic stress crop improvement gene expression halotolerant microbial diversity phosphate solubilization plant growth promoting traits soil health

Surging footprints of mathematical modeling for prediction of transdermal permeability

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Asian Journal of Pharmaceutical Sciences 2017年第4期12卷 299-325页

作者： neha Goyal Purva Thatai Bharti Sapra Pharmaceutics Division Department of Pharmaceutical Sciences Punjabi University

In vivo skin permeation studies are considered gold standard but are difficult to perform and evaluate due to ethical issues and complexity of process involved. In recent past, a useful tool has been developed by combining the computational modeling and experimental data for expounding biological complexity. Modeling of percutaneous permeation studies provides an ethical and viable alternative to laboratory experimentation. Scientists are exploring complex models in magnificent details with advancement in computational power and technology. Mathematical models of skin permeability are highly relevant with respect to transdermal drug delivery, assessment of dermal exposure to industrial and environmental hazards as well as in developing fundamental understanding of biotransport *** review focuses on various mathematical models developed till now for the transdermal drug delivery along with their applications.

关键词： Mathematical models Multiple linear regression Artificial neural network Iontophoresis based models Compartmental modeling Porous pathway models

Syncope in a 3-year-old male: A case report

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World Journal of Emergency Medicine 2020年第3期11卷 188-190页

作者： neha Gupta Saurabh Talathi Sarika Kalantre Department of Pediatrics Lincoln Medical CenterBronxNew YorkUSA Division of Pediatric Cardiology Department of PediatricsChildren's Hospital at Montefi ore and Albert Einstein College of MedicineBronxNew YorkUSA

Dear editor,Syncope is a common presenting complaint in pediatric emergency *** differential diagnosis of syncope is vast,including various neurological and cardiac *** syndrome(BrS)is a primary inherited arrhythmia which can present with syncope but can lead to sudden cardiac deaths due to ventricular fi *** is a rare genetic condition,often diagnosed in the *** presenting in childhood,especially symptomatic BrS,is extremely *** present a case of a previously healthy 3-year-old male who presented to the emergency department with syncope and was later diagnosed with BrS.

关键词： cardiac diagnosis ventricular

Big data analytics for retail industry using MapReduce-Apriori framework

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Journal of Management Analytics 2020年第3期7卷 424-442页

作者： neha Verma Dheeraj Malhotra tinder Singh Vivekananda Institute of Professional Studies GGSIPUDelhiIndia Sant Baba Bhaag Singh niversity JalandharIndia

Presently,retailing has changed its face from unordered stacked traditional stores to beautifully decorated and appropriately managed merchandise stores or shopping malls with excellent ambiance and ***,these stores try to accommodate all needed items for daily use or rarely required items under the same ***,the primary challenge for today’s retailer is that the modern customer is quality and brands conscious as well as compare for services provided to them by different outlets at the comfort of home with a single ***,customers prefer to purchase from E-Commerce websites instead of physically visiting a retail store,which leads to the downfall in the sales of retailers which become a serious threat to ***,retailers are required to work sincerely towards their customer expectations by providing all their needed goods under the same ***,the objective of this paper is to assist retail business owners to recognize the purchasing needs of their customers and hence to entice customers to physical retail stores away from competitor E-Commerce *** paper employs a systematic research methodology based on association rule mining deployed over Map-Reduce based Apriori association mining and Hadoop based intelligent cloud architecture to determine useful buying patterns from purchase history of previous customers,in order to assist retail business *** finding acknowledges that the traditional mining algorithms have not progressed to support big data analysis as required by current retail businesses *** job of finding unknown association rules from big data requires a lot of resources such as memory and processing ***,traditional mining systems are inadequate to provide support for partial failure support,extensibility,scalability ***,this study aims to implement and develop MapReduce based Apriori(MR-Apriori)algorithm in the form of Intelligent Retail Mining Tool *** Tool

关键词： Big data retail analytics MR-Apriori algorithm map-reduce market basket analysis association mining IRM tool

Systematic study of kinematic and dynamic moments of inertia of superdeformed bands with NpNn scheme

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Chinese Physics C 2017年第8期41卷 101-107页

作者： Honey shar.a neha shar.a H.M.Mittal Dr.B.R.Ambedkar National Institute of Technology Jalandhar144011India CT Institute of Engineering Management and Technology Jalandhar144020India

The systematics of kinematic moment of inertia J and dynamic moment of inertia J of superdeformed（SD） bands in A -130, 150, 190 mass regions have been studied. We have obtained the values of J^（1） and J^（2）for all the SD bands observed in the A-130, 150, 190 mass regions by using the experimental intraband E2 transition energies. The result of this work includes the variation of J with the product of valence proton and neutron numbers（NpNn）. The phenomenon of band mixing has been observed in the A -130, 150 mass regions and band crossing has been observed in the A-190 mass region. The systematics also includes the variation of J with the product of valence proton and neutron numbers（NpNn）. Evidence of staggering behaviour has been observed in all three A-130, 150 and 190 mass regions. We present for the first time the variation of J^（1）and J^（2）of SD bands in the A-130, 150, 190 mass regions with NpNn.

关键词： kinematic moment of inertia j dynamic moment of inertia j NpYn scheme

Excitations of optomechanically driven Bose Einstein condensates in a cavity: Photodetection measurements

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Chinese Physics B 2014年第10期23卷 32-44页

作者： neha Aggarwal Sonam Mahajan Aranya B.Bhattacherjee Man Mohan Department of Physics and Astrophysics University of Delhi Department of Physics ARSD College University of Delhi (South Campus) School of Physical Sciences Jawaharlal Nehru University

We present a detailed study to analyze the Dicke quantum phase transition within the thermodynamic limit for an optomechanically driven Bose-Einstein condensate in a cavity. The photodetection-based quantum optical measurements have been performed to study the dynamics and excitations of this optomechanical Dicke system. For this, we discuss the eigenvalue analysis, fluorescence spectrum and the homodyne spectrum of the system. It has been shown that the normal phase is negligibly affected by the mechanical mode of the mirror while it has a significant effect in the superradiant phase. We have observed that the eigenvalues and the spectra both exhibit distinct features that can be identified with the photonic, atomic and phononic branches. In the fluorescence spectra, we further observe an asymmetric coherent energy exchange between the three degrees of freedom of the system in the superradiant phase arising as a result of optomechanical interaction and Bloch-Siegert shift.

关键词： optomechanical cavity Bose-Einstein condensates quantum phase transition