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Bianchi type-I cosmological models with perfect fluid in general relativity

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Research in Astronomy and Astrophysics 2010年第4期10卷 291-300页

作者： rishi kumar Tiwari Department of Mathematics Govt.Model Science College

Einstein＇s field equations with variable gravitational and cosmological constants are considered in the presence of perfect fluid for the Bianchi type-I universe by assuming that the cosmological term is proportional to R-m （R is a scale factor and m is a constant）.A variety of solutions are *** physical significance of the respective cosmological models are also discussed.

关键词： cosmological parameters - cosmology: theory - relativity

A selective literature review exploring the role of the nicotinic system in schizophrenia

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General Psychiatry 2023年第2期36卷 86-91页

作者： Guna Kanniah rishi kumar Mental Health and Addictions Services Waikato DHBWaikato HospitalHamiltonNew Zealand Department of General Medicine Middlemore HospitalAucklandNew Zealand

Nicotine use is more prevalent in patients with psychiatric disorders,especially those diagnosed with psychotic ***,this higher prevalence has been partially attributed to the potential ameliorative effects of nicotine on symptom severity and cognitive *** healthcare professionals and patients perceive there is a beneficial effect of nicotine on mental *** data show that the harm associated with nicotine in the population of patients with mental health conditions outweighs any potential *** paper will review the evidence surrounding the nicotinic system and schizophrenia,with a focus on any causality between nicotine and psychosis.

关键词： system attributed potential

Thermo-Chromic Response of Polymer Stabilized Cholesteric Liquid Crystal for Thermal Imaging

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Non-Metallic Material Science 2019年第2期1卷 10-14页

作者： rishi kumar KK Raina Department of Physics Guru Nanak CollegeBudhlada151502India School of Physics and Materials Science Thapar UniversityPatiala147004India

Cholesteric liquid crystal(Ch-LC)exhibits many remarkable optical properties due to formation of a macroscopic helical structure.A low amount of monomer(5wt.%)is dispersed into cholesteric liquid crystal and get polymerized under UV radiations to form polymer stabilized cholesteric texture(PSCT).The thermo-chromic response made this device suitable for the developing applications in thermal *** based measurements of PSCT exploits the key property of some polymer stabilized cholesteric liquid crystals(PSCLC)to reflect definite colors at specific *** selective color of PSCT texture shifts with raise in temperature from 30oC to 85oC,which can be utilized in thermal imaging applications.

关键词： Polymer stabilized cholesteric texture(PSCT) Cholesteric liquid crystal(CLC) Morphological study Thermo-chromic Responses

Pain management in chronic pancreatitis

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World Journal of Clinical Cases 2024年第12期12卷 2016-2022页

作者： Deb Sanjay Nag Bhanu Pratap Swain rishi Anand Tapas kumar Barman Vatsala Department of Anaesthesiology Tata Main HospitalJamshedpur 831001India

Pain in chronic pancreatitis(CP)is difficult to *** patients suffer from inadequate pain relief,completely incapacitating them in their daily ***,despite their well-known adverse effects,opioids have been the pillar of treatment regimens in painful *** management is now gradually evolving with a better understanding of the underlying pathophysiology of CP-related *** should follow a holistic approach to the management of CPassociated pain,which must involve lifestyle changes that are coupled with analgesic medications and other pain-relieving ***,there is no easy cure for vanquishing CP-associated *** patient must be evaluated on a case-by-case basis by a multidisciplinary team to decide which treatment option is best suited for that individual.

关键词： Pancreatitis Abdominal pain Palliative care Analgesics Life style Psychology

Time Varying Deceleration Parameter in f(R, T) Gravity

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Journal of Applied Mathematics and Physics 2021年第5期9卷 847-855页

作者： rishi kumar Tiwari Sushil kumar Mishra Sateesh kumar Mishra Değ er Sofuoğ lu Department of Mathematics Government Model Science College Rewa India Department of Mathematics Kashi Naresh Govt. P. G. College Gyanpur India Department of Physics Istanbul University Istanbul Turkey

In the present study, a homogeneous and anisotropic LRS Bianchi type I universe model is considered in f(R, T) theory of gravity. In order to find an exact solution of the field equations of the model, the model presented is based on a unique condition of periodically time varying deceleration parameter. The physical and geometrical characteristics of the universe model have been studied. It has been shown that the model has point-type singularity and all the cosmological parameters possess periodic time behavior. The model has a cyclic expansion history, for example, the model starts with the decelerating expansion, and later it transits to an accelerating phase of expansion and then goes to super-exponential phase of expansion in a period.

关键词： Periodic Deceleration Parameter f(R T) Gravity Bianchi Type-I Universe

Current evidence on artificial intelligence in regional anesthesia

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World Journal of Clinical Cases 2024年第33期12卷 6613-6619页

作者： Bhanu Pratap Swain Deb Sanjay Nag rishi Anand Himanshu kumar Pradip kumar Ganguly Niharika Singh Department of Anaesthesiology Tata Main HospitalJamshedpur 831001India Department of Anesthesiology Manipal Tata Medical CollegeJamshedpur 831017India

The recent advancement in regional anesthesia(RA)has been largely attributed to ultrasound ***,the safety and efficiency of ultrasound-guided nerve blocks depend upon the skill and experience of the *** with adequate training,experience,and knowledge,human-related limitations such as fatigue,failure to recognize the correct anatomical structure,and unintentional needle or probe movement can hinder the overall effectiveness of *** amalgamation of artificial intelligence(AI)to RA practice has promised to override these human *** learning,an integral part of AI can improve its performance through continuous learning and experience,like the human *** enables computers to recognize images and patterns specifically useful in anatomic structure identification during the performance of *** can provide real-time guidance to clinicians by highlighting important anatomical structures on ultrasound images,and it can also assist in needle tracking and accurate deposition of local *** future of RA with AI integration appears promising,yet obstacles such as device malfunction,data privacy,regulatory barriers,and cost concerns can deter its clinical *** current mini review deliberates the current application,future direction,and barrier to the application of AI in RA practice.

关键词： Artificial intelligence Regional anesthesia Machine learning Ultrasonography Nerve block

Sodium glucose cotransporter 2 inhibitors in the management of heart failure:Veni,Vidi,and Vici

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World Journal of Cardiology 2024年第10期16卷 550-563页

作者： Monika Bhandari Akshyaya Pradhan Pravesh Vishwakarma Abhishek Singh rishi Sethi Department of Cardiology King Georg’s Medical UniversityLucknow 226003Uttar PradeshIndia

Heart failure(HF)is a chronic disease associated with high morbidity and mortality ***-angiotensin-aldosterone system blockers(including angiotensin receptor/neprilysin inhibitors),beta-blockers,and mineralocorticoid receptor blockers remain the mainstay of pharmacotherapy for HF with reduced ejection fraction(HFrEF).However,despite the use of guideline-directed medical therapy,the mortality from HFrEF remains *** with preserved ejection fraction(HFpEF)comprises approximately half of the total incident HF cases;however,unlike HFrEF,there are no proven therapies for this *** glucose cotransporter-2 inhibitors(SGLT-2is)represent a new class of pharmacological agents approved for diabetes mellitus(DM)that inhibit SGLT-2 receptors in the kidney.A serendipitous finding from seminal trials of SGLT-2is in DM was the significant improvement in renal and cardiovascular(CV)*** importantly,the improvement in HF hospitalization(HHF)in the CV outcomes trials of SGLT-2is was *** mechanisms have been proposed for the pleiotropic effects of SGLT-2is beyond their glycemic ***,as patients with HF were not included in any of these trials,it can be considered as a primary ***,two landmark studies of SGLT-2is in patients with HFrEF,namely,an empagliflozin outcome trial in patients with chronic HF and a reduced ejection fraction(EMPEROR-Reduced)and dapagliflozin and prevention of adverse outcomes in HF(DAPA-HF),demonstrated significant improvement in HHF and CV mortality regardless of the presence of *** impressive results pitchforked these drugs as class I indications in patients with HFrEF across major ***,empagliflozin outcome trial in patients with chronic HF with preserved ejection fraction(EMPEROR-Preserved)and dapagliflozin evaluation to improve the lives of patients with preserved ejection fraction HF(DELIVER)trials successively confirmed that SGLT-2is also benefit patients w

关键词： Heart failure with preserved ejection fraction Gliflozins Diuresis Natriuresis N terminal-pro brain natriuretic peptide Heart failure hospitalization

Home-based Detection and Prediction of Diabetic Foot Ulcers at Early Stage Using Sensor Technology and Supervised Learning

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Journal of Harbin Institute of Technology(New Series) 2024年第1期31卷 26-37页

作者： Kamasamudram Bhavya Sai rishi Raghu Sai Surya Varshith Nukala Jayashree Jayaraman Vijayashree Jayaraman School of Computer Science and Engineering Vellore Institute of TechnologyVellore 632014India

For years,foot ulcers linked with diabetes mellitus and neuropathy have significantly impacted diabetic patients’ health-related quality of life(HRQoL). Diabetes foot ulcers impact15% of all diabetic patients at some point in their lives. The facilities and resources used for DFU detection and treatment are only available at hospitals and clinics,which results in the unavailability of feasible and timely detection at an early stage. This necessitates the development of an at-home DFU detection system that enables timely predictions and seamless communication with users,thereby preventing amputations due to neglect and severity. This paper proposes a feasible system consisting of three major modules:an IoT device that works to sense foot nodes to send vibrations onto a foot sole,a machine learning model based on supervised learning which predicts the level of severity of the DFU using four different classification techniques including XGBoost,K-SVM,Random Forest,and Decision tree,and a mobile application that acts as an interface between the sensors and the patient. Based on the severity levels,necessary steps for prevention,treatment,and medications are recommended via the application.

关键词： diabetic foot ulcer podiatry diabetes mellitus healthcare footcare internet of things machine learning human⁃computer interaction

Recognition and Anticipation of Diabetic Foot Ulcer in Type Ⅱ Diabetic Patients using Multi-layered Fuzzy Model

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Journal of Harbin Institute of Technology(New Series) 2024年第4期31卷 13-23页

作者： Sai Surya Varshith Nukala Jayashree Jayaraman Vijayashree Jayaraman rishi Raghu School of Computer Science and Engineering Vellore Institute of TechnologyVellore 632014Tamil NaduIndia

Diabetes mellitus is associated with foot ulcers,which frequently pave the way to lower-extremity ***,trauma,deformity,high plantar pressures,and peripheral vascular disease are the most common underlying *** 15%of diabetic patients are affected by diabetic foot ulcer in their lifetime.64 million people are affected by diabetics in India and 40000 amputations are done every *** ulcers are evaluated and classified in a systematic and thorough manner to assist in determining the best course of *** paper proposes a novel model which predicts the threat of diabetic foot ulcer using independent agents for various input values and a combination of fuzzy expert *** proposed model uses a classification system to distinguish between each fuzzy framework and its *** on the severity levels necessary prevention,treatment,and medication are *** the results of all the fuzzy frameworks derived from its constituent parameters,a risk-specific medication is *** work also has higher accuracy when compared to other related models.

关键词： diabetic ulcer typeⅡdiabetic fuzzy model