检索结果-南通市图书馆

Non-invasive cuffless blood pressure and heart rate monitoring using impedance cardiography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent Medicine 2022年第4期2卷 199-208页

作者： Sudipta Ghosh Bhabani Prasad Chattopadhyay Ram Mohan Roy Jayanta Mukherjee manjunatha mahadevappa Department of Computer Science&Engineering Indian Institute of Technology KharagpurKharagpurWest Bengal 721302India School of Medical Science&Technology Indian Institute of Technology KharagpurKharagpurWest Bengal 721302India Department of Cardiology Medical College&HospitalKolkataWest Bengal 700073India

Background Continuous blood pressure(BP)monitoring provides additional information about how changes in BP may correlate with daily activities and sleep *** from the American Heart Association and American College of Cardiology strongly suggest confirming a diagnosis of hypertension with continuous BP ***-invasive and non-intrusive detection of haemodynamic parameters is emerging as a norm,based on self-monitoring wearable medical *** have carried out several studies using non-invasive and continuous BP measurements as an alternative to conventional cuff-based *** this work,we proposed a novel method for cuffless estimation of BP using impedance cardiography(ICG).Methods We conducted a single-centre,cross-sectional study of 104 subjects(of whom 30 were categorized as controls and the remaining 74 as the disease group)at the Medical College and Hospital,*** disease group consisted of patients with confirmed coronary artery disease,while the individuals in the control group were deemed to be *** subjects underwent electrocardiogram recording by on-duty doctors in order to determine their health status.A custom-made device based on the principle of impedance plethysmography was designed to record impedance changes due to subjects’peripheral blood *** device was used to record ICG *** this study,we developed a novel auto-adaptive algorithm based on ICG signals for non-invasive,cuffless,continuous monitoring of BP and heart *** mathematical models were developed for all the estimated parameters(BP and heart rate)for both the study groups(control and disease).The developed models were auto-adaptive and did not require subject-specific *** indicators including,𝑟2,error percentage,standard deviation,and mean difference were used to quantify the performance of the *** The ICG signal recorded by the device was used to extract features and compute t

关键词： Impedance cardiography Augmentation index Systolic pressure Diastolic pressure Heart rate

Cr-induced fusion reactions to synthesize superheavy elements

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第5期35卷 122-130页

作者： S.Madhu H.C.manjunatha N.Sowmya B.M.Rajesh L.Seenappa R.S.Susheela Department of Physics R V College of EngineeringBangalore 560074India Visvesvaraya Technological University BelagaviKarnataka 590018India Department of Physics Government First Grade CollegeSrinivasapurKarnataka 563135India Department of Physics Government First Grade CollegeDevanahallyKarnataka 562110India Department of Physics Government First Grade CollegeMulbagalKarnataka 563131India Department of Physics Government First Grade collegeNanjangudOoty RoadMysore 571301India

We investigated ^(50,52-54)Cr-induced fusion reactions for the synthesis of the superheavy element in the 104≤Z≤122 *** cross sections produced in this investigation using ^(54)Cr projectiles were compared with those obtained in prior *** estimated cross sections from this analysis are consistent with the findings of prior *** the current study,the predicted cross section was found to be 42fb at 236 MeV for ^(53)Cr+^(243)Am,23.2 fb at 236 MeV for ^(54)Cr+^(247)Cm,95.6 fb at 240 MeV for ^(53)Cr+248Bk,and 1.33 fb at 242 MeV for ^(53)Cr+***,these projected cross sections with excitation energy and beam energy will be useful in future Cr-induced fusion reaction investigations.

关键词： Fusion cross sections Compound nucleus formation probability Survival probability Evaporation residue cross sections

Empirical model for fusion cross sections of Ca-induced reactions

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第3期48卷 126-132页

作者： Reddi Rani.L N.Sowmya K.N Sridhar H C.manjunatha M.M.Armstrong Arasu Department of Physics St.Joseph's College(Autonomous)Affiliated to Bharathidasan UniversityTiruchirappalli620002TNIndia Department of Physics Govt.First.Grade CollegeChikkaballapur-562101KarnatakaIndia Department of Physics Govt.First.Grade CollegeMalur-563160KarnatakaIndia Department of Physics Govt.First.Grade CollegeDevanahalli-562110KarnatakaIndia

A new empirical formula for the astrophysical S-factor has been suggested as a function of the Coulomb interaction parameter,center of mass energy,and barrier *** 22 fusion reactions with ^(40,48)Ca as projectiles were considered for different targets,leading to compound nuclei with atomic and mass numbers varying between 40≤Z≤≤Z≤112 and 88≤A≤27888≤A≤278,*** fusion cross-sections have been estimated using the geometric factor,the Gamow-Sommerfield factor,and the empirical formula for the *** study's findings showed better agreement with those of available experiments when compared to Wong's *** present work leads to a smaller standard deviation value than Wong's formula when used to correlate the experimental data of calcium-induced fusion ***'s formula provides a good approximation of fusion cross-sections when the center of mass energy is below the fusion barrier when compared to above the fusion barrier.

关键词： fusion cross-sections Wong formula Gamow-Sommerfield-factor Geometric-factor S-factor

How to make a human germ cell

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2015年第3期17卷 441-442页

作者： Paul S Cooke manjunatha K Nanjappa Department of Physiological Sciences College ofVeterinary Medicine University of Florida GainesvilleFL 32608 USA

How the primordial germ cell （PGC） lineage, which eventually gives rise to spermatozoa in males and oocytes in females, is established in the developing mammalian embryo has been a critical topic in both developmental and reproductive biology for many years. There have been significant breakthroughs over the past two decades in establishing both the source of PGCs and the factors that regulate the specification of this lineage in mice,~ but our understanding of the factors that control PGC development in the human is rudimentary. The SRY-related HMG-box （SOX） family of transcription factors consists of 20 genes in humans and mice that are involved in the maintenance of pluripotency, male sexual development, and other processes. A recent paper in Cell has identified one member of this family, SOX17, as an essential factor for inducing the PGC lineage in ***, this protein does not appear to have a role in PGC specification in mice. This work not only introduces a new and important player to the field of germ cell specification, but also emphasizes the uniqueness of human PGC development compared to more extensively studied mouse models.

关键词： PLURIPOTENT STEM-CELLS MOUSE DIFFERENTIATION SPECIFICATION MICE FATE

Another piece of the meiosis puzzle

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2017年第1期19卷 3-4页

作者： Paul S Cooke manjunatha K Nanjappa Department of Physiological Sciences College ofVeterinary Medicine University of Florida GainesvilleFL 32608 USA.

Meiosis, the process by which the ovary and testis produce haploid gametes from initially diploid cells, is essential for sexual reproduction in mammals. This process, initially described in the late 19th and early 20th century using model organisms such as sea urchins, worms and fruit flies, continues to attract extensive interest from reproductive biologists due to its centrality in gametogenesis.

关键词： testis produce haploid

Pocket formula for mass attenuation coefficient, effective atomic number, and electron density of human tissues

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2019年第3期30卷 1-8页

作者： H.C.manjunatha L.Seenappa Department of Physics Government College for Women

We have proposed a pocket formula for mass attenuation coefficient(μ/ρ), mass energy absorption coefficient(μ_(en)/ρ), and effective atomic number(Z_(eff)) in different tissues of human organs. We have also assigned a new chemical formula for all studied tissues based on their composition. We have introduced a new parameter called effective composition index(C_(eff)). Based on this, we have introduced a new method to compute the effective atomic number. The evaluated photon interaction parameters are graphically represented. The evaluated average, maximum,minimum, and standard deviations of effective atomic number are tabulated. The proposed formula produces a mass attenuation coefficient, mass energy absorption coefficient, and effective atomic number from their

关键词： Effective atomic number Mass attenuation coefficient Tissues

Risk estimation of chronic kidney disease in a leptospirosis endemic area: A case-control study from south Andaman Islands of India

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2023年第10期16卷 463-471页

作者： Ambreen Fatema manjunatha Ramu Paluru Vijayachari ICMR-Regional Medical Research Centre Port BlairPost Bag No.13DollygunjPort Blair 744101Andaman&Nicobar IslandsIndia

Objective:To estimate the risk of chronic kidney disease in patients with ***:All reported(41890)and later confirmed leptospirosis(1990)cases from 2010-2020 were traced by universal sampling.386 Laboratory-confirmed leptospirosis cases were enrolled and 413 age,gender,area,and occupation matched healthy persons were included as *** including socio-demographic characteristics,medical history,and health-related behaviours were compared between the two groups and association between these variables and reduced estimated glomerular filtration rate(eGFR)was analyzed with multiple linear ***:The median of eGFR was 49.0(27.0,75.0)mL/min/1.73 m^(2) in the cases and 96.0(72.0,121.0)mL/min/1.73 m^(2) in the controls,showing significant differences(P<0.001).Bivariate analysis showed that leptospirosis seropositivitiy,repeat leptospirosis infection,diabetes,male gender,working in field(sun exposure),COVID-19 infection and smoking had statistically significant association with reduced *** seropositivity had negative effects on *** linear regression confirmed that leptospirosis seropositivity had negative effects on eGFR(unstandardised β coefficients=−30.86,95%CI−49.7 to−11.9,P<0.001).Conclusions:Chronic kidney disease is a complex disease with multiple risk factors *** to leptospirosis is one of the essential factors in accelerating its progression.

关键词： Chronic kidney disease Endemic leptospirosis Estimated glomerular filtration rate(eGFR)

Electrochemical Preparation of Poly(arginine)-Modified Carbon Nanotube Paste Electrode and its Application for the Determination of Pyridoxine in the Presence of Riboflavin: An Electroanalytical Approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Analysis and Testing 2019年第4期3卷 331-340页

作者： Girish Tigari J.G.manjunatha Department of Chemistry FMKMC CollegeMangalore University Constituent CollegeMadikeriKarnatakaIndia

A simple poly(arginine)film-modified carbon nanotube paste electrode(PAMCNTPE)was prepared using cyclic voltam-metry(CV).The devised sensor was subjected to field-emission scanning electron microscope(FESEM)and CV *** sensing of 0.1 mM pyridoxine(PY)was upgraded at PAMCNTPE as compared to the bare carbon nanotube paste electrode(BCNTPE).The PAMCNTPE detects the 0.1 mM PY at a specific potential 0.727 V with a current response of 10.68μ*** the case of BCNTPE,the PY appeared at 0.798 V with a current 2.90μ*** proposed analytical method was optimized by prime parameters such as the impact scan rate,pH and PY *** optimal conditions,the concentration of PY is directly proportional to oxidation current(I_(pa))in linear range 2-10μM,and 10-80μM with a detection limit(LOD)of 9.6×10^(−7) M and limit of quantification(LOQ)of 3.21×10^(−6) *** simultaneous determination,concen-tration variation analysis of PY is performed with riboflavin(RF)and interference analysis in detecting PY also *** proposed sensor was effectively applied for the determination of PY in natural food supplement with excellent recovery.

关键词： Poly(arginine) Carbon nanotube Pyridoxine Riboflavin Cyclic voltammetry

Intercellular Trogocytosis Plays an Important Role in Modulation of Immune Responses

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2008年第4期5卷 261-269页

作者： Khawaja Ashfaque Ahmed manjunatha Ankathatti Munegowda Jim Xiang Research Unit Saskatchewan Cancer AgencyDepartments of OncologyMicrobiology and ImmunologyCollege of MedicineUniversity of Saskatchewan20 Campus DriveSaskatoon Saskatchewan S7N 4H4Canada Research Unit Saskatchewan Cancer AgencyDepartments of OncologyMicrobiology and ImmunologyCollege of MedicineUniversity of Saskatchewan20 Campus Drive SaskatoonSaskatchewan S7N 4H4Canada

Intercellular communication is an important means of molecular information transfer through exchange of membrane proteins from cells to cells. Advent of the latest analytical and imaging tools has allowed us to enhance our understanding of the cellular communication through the intercellular exchange of intact membrane patches, also called trogocytosis, which is a ubiquitous phenomenon. Immune responses against pathogens or any foreign antigens require fine immune regulation, where cellular communications are mediated by either soluble or cell surface molecules. It has been demonstrated that the membrane molecule transfer between immune cells such as dendritic and T cells can be derived through internalization/recycling pathway, dissociation-associated pathway, uptake of exosomes and membrane nanotube formations. Recent evidence implicates the trogocytosis as an important mechanism of the immune system to modulate immune responses. Exchange of membrane molecules/ antigens between immune cells has been observed for a long time, but the mechanisms and functional consequences of these transfers remain unclear. In this review, we discuss the possible mechanisms of trogocytosis and its physiological relevance to immune system, with special reference to T cells and the stimulatory or suppressive immune responses derived from T cells with acquired dendritic cell membrane molecules. Cellular ＆ Molecular Immunology. 2008;5（4）：261-269.

关键词： cellular interaction membrane molecule transfer CTL response immune suppression