274 research outputs found
Technology Analysis of Concentrated Solar Thermal Power
The current society much more taking interest in green energy and their energy system which are liable to being modified to achieve more efficiency and to sharply decrease CO2 emissions (5%below 1990 level ). INDIA is a fast growing country for utilizing solar energy. Form this paper we got to know about basic CSP technologies and their implementation preferable in India by using of SAM( System Advisor Model ) . It includes some basic facts and assessment methodology and market challenging on basis of rebellion in energy sector ,prospect to be an alternative huge power generation an assessment of old conventional power plant .Here also specify about theoretically electrical output which help to choose the technology . There small uses in thermal power plant which is also taken a lot of importance as increases in efficiency and cost reduction in term of generation and GHGâs emission with reducing of mass of coal. Keyword: CSP technology and their types, system advisor model (SAM), appropriate CSP technology for India, Application in thermal power plant
A micro bacteriological culture assessment of the histopathological alterations in liver and bile in gallstone disease
Background: The present investigation aims to evaluate both the intensity and occurrence of hepatic impairment in patients afflicted with gallstone disease, examining the involvement of bacteria in the progression of these alterations.
Methods: This prospective observational investigation was carried out on 189 patients scheduled for open or laparoscopic cholecystectomy at IGIMS in Patna, Bihar, India. In all the patients, laboratory and radiological investigations were performed. A healthy section of the liver border near the gallbladder fossa was chosen and grasped with non-traumatic forceps. Approximately 1 cm of the liver edge was excised using scissors and forwarded for histopathological analysis.
Results: An examination of 189 liver biopsy specimens revealed that 87 (46%) patients showed no abnormalities, while 102 patients (54%) exhibited one or more changes. Upon analysing the liver biopsy samples from the control cohort (41 patients) during autopsy, 37% of the cases were identified to display hepatic lipidosis, while 48% of the cases showed lymphocytic invasion. Importantly, no cases of acute inflammatory changes were detected in the control cohort. Microbiological analysis was conducted on 96 patients, of which 33 (34%) showed positive cultures, with one or more microorganisms isolated from either the biliary tract or liver. Among these, 74% (24 cases) originated from the bile or gallbladder, while 26% (9 cases) were isolated from the liver.
Conclusions: Gallstone disease induces significant liver histological changes, notably more prevalent in patients with prolonged symptoms. The present study clearly identifies this and underscores the importance of timely diagnosis and intervention for the effective management of this disease
A Comparative Assessment of Petroffâs and N-Acetyl-L-Cysteine- Sodium Hydroxide Method in the Diagnosis of Pulmonary Tuberculosis
Tuberculosis (TB) stays one of the deadliest communicable disease and responsible for almost two million deaths every year worldwide. The objective of the present study is to compare Petroffâs and N-acetyl-L cysteine- sodium hydroxide methods used for the diagnosis of pulmonary tuberculosis. This present study was conducted in the department of ST Johnâs Medical college and Hospital, Bangalore, from October 2011 to September 2012. Total 100 sputum specimen was collected from patients under the Revised National Tuberculosis Control Program (RNTCP) Guidelines. These samples were decontaminated with Petroffâs and NALC- NaOH Method and same were processed for L J culturing and incubated at 37ËC. As per result analysis, out of total 100 sputum sample, 64 % smears were positive by petroffââs methods and 69 % smears were positive by NALC - NAOH methods. The positivity rate was increased by NALC â NAOH method. All samples were cultured on LJ medium for bacterial growth. A maximum number of cultures were positive by NALC â NAOH method (53 %) and Petroffâsmethod (51 %). This study concludes that NALC-NaOH method is effective and provides valid and rapid results. This method can be used for routine diagnosis and for better sensitivity of Mycobacterium growth. There is further multicentric research is required in respect of targeting larger population for better effective outcomes.
Keywords: Tuberculosis, Petroffâs, NALC- NaOH Method, Sputum, L J Cultur
Age-specifi c and sex-specifi c adult mortality risk in India in 2014: analysis of 0·27 million nationally surveyed deaths and demographic estimates from 597 districts
Background As child mortality decreases rapidly worldwide, premature adult mortality is becoming an increasingly
important contributor to global mortality. Any possible worldwide reduction of premature adult mortality before the
age of 70 years will depend on progress in India. Indian districts increasingly have responsibility for implementing
public health programmes. We aimed to assess age-specifi c and sex-specifi c adult mortality risks in India at the
district level.
Methods We analysed data from fi ve national surveys of 0â27 million adult deaths at an age of 15â69 years together
with 2014 demographic data to estimate age-specifi c and sex-specifi c adult mortality risks for 597 districts. Cause of
death data were drawn from the verbal autopsies in the Registrar General of Indiaâs ongoing Million Death Study.
Findings In 2014, about two-fi fths of Indiaâs men aged 15â69 years lived in the 253 districts where the conditional
probability of a man dying at these ages exceeded 50%, and more than a third of Indiaâs women aged 15â69 years lived
in the 222 districts where the conditional probability of a woman dying exceeded 40%. The probabilities of a man or
woman dying by the age of 70 years in high-mortality districts was 62% and 54%, respectively, whereas the probability
of a man or woman dying by the age of 70 years in low-mortality districts was 40% and 30%, respectively. The roughly
10-year survival gap between high-mortality and low-mortality districts was nearly as extreme as the survival gap between
the entire Indian population and people living in high-income countries. Adult mortality risks at ages 15â69 years was
highest in east India and lowest in west India, by contrast with the northâsouth divide for child mortality. Vascular
disease, tuberculosis, malaria and other infections, and respiratory diseases accounted for about 60% of the absolute
gap in adult mortality risk at ages 15â69 years between high-mortality and low-mortality districts. Most of the variation
in adult mortality could not be explained by known determinants or risk factors for premature mortality.
Interpretation Indiaâs large variation in adult mortality by district, notably the higher death rates in eastern India,
requires further aetiological research, particularly to explore whether high levels of adult mortality risks from
infections and non-communicable diseases are a result of historical childhood malnutrition and infection. Such
research can be complemented by an expanded coverage of known eff ective interventions to reduce adult mortality,
especially in high-mortality district
Statistical Model Checking for Stochastic Hybrid Systems
This paper presents novel extensions and applications of the UPPAAL-SMC model
checker. The extensions allow for statistical model checking of stochastic
hybrid systems. We show how our race-based stochastic semantics extends to
networks of hybrid systems, and indicate the integration technique applied for
implementing this semantics in the UPPAAL-SMC simulation engine. We report on
two applications of the resulting tool-set coming from systems biology and
energy aware buildings.Comment: In Proceedings HSB 2012, arXiv:1208.315
Divergent trends in ischaemic heart disease and stroke mortality in India from 2000 to 2015: a nationally representative mortality study.
INTRODUCTION: India accounts for about a fifth of cardiovascular deaths globally, but nationally representative data on mortality trends are not yet available. In this nationwide mortality study, we aimed to assess the trends in ischaemic heart disease and stroke mortality over 15 years using the Million Death Study. METHODS: We determined national and subnational cardiovascular mortality rates and trends by sex and birth cohort using cause of death ascertained by verbal autopsy from 2001 to 2013 among 2·4 million households. We derived mortality rates for ischaemic heart disease and stroke by applying mortality proportions to UN mortality estimates for India and projected the rates from 2000 to 2015. FINDINGS: Cardiovascular disease caused more than 2·1 million deaths in India in 2015 at all ages, or more than a quarter of all deaths. At ages 30-69 years, of 1·3 million cardiovascular deaths, 0·9 million (68·4%) were caused by ischaemic heart disease and 0·4 million (28·0%) by stroke. At these ages, the probability of dying from ischaemic heart disease increased during 2000-15, from 10·4% to 13·1% in men and 4·8% to 6·6% in women. Ischaemic heart disease mortality rates in rural areas increased rapidly and surpassed those in urban areas. By contrast, the probability of dying from stroke decreased from 5·7% to 5·0% in men and 5·0% to 3·9% in women. A third of premature stroke deaths occurred in the northeastern states, inhabited by a sixth of India's population, where rates increased significantly and were three times higher than the national average. The increased mortality rates of ischaemic heart disease nationally and stroke in the northeastern states were higher in the cohorts of adults born in the 1970s onwards, than in earlier decades. A large and growing proportion of the ischaemic heart disease nationally and stroke deaths in high-burden states reported earlier diagnosis of cardiovascular disease, but low medication use. INTERPRETATION: The unexpectedly diverse patterns of cardiovascular mortality require investigation to identify the role of established and new cardiovascular risk factors. Secondary prevention with effective and inexpensive long-term treatment and adult smoking cessation could prevent substantial numbers of premature deaths. Without progress against the control of cardiovascular disease in India, global goals to reduce non-communicable diseases by 2030 will be difficult to achieve. FUNDING: Fogarty International Center of the US National Institutes of Health, Dalla Lana School of Public Health, University of Toronto, Indian Council of Medical Research, and the Disease Control Priorities
Assessment of dimensional stability, biodegradability, and fracture energy of bio composites reinforced with novel pine cone
In this investigation, biodegradable composites were fabricated with polycaprolactone (PCL) matrix reinforced with pine cone powder (15%, 30%, and 45% by weight) and compatibilized with graphite powder (0%, 5%, 10%, and 15% by weight) in polycaprolactone matrix by compression molding technique. The samples were prepared as per ASTM standard and tested for dimensional stability, biodegradability, and fracture energy with scanning electron micrographs. Water-absorption and thickness-swelling were performed to examine the dimensional stability and tests were performed at 23 °C and 50% humidity. Results revealed that the composites with 15 wt % of pine cone powder (PCP) have shown higher dimensional stability as compared to other composites. Bio-composites containing 15â45 wt % of PCP with low graphite content have shown higher disintegration rate than neat PCL. Fracture energy for crack initiation in bio-composites was increased by 68% with 30% PCP. Scanning electron microscopy (SEM) of the composites have shown evenly-distributed PCP particles throughout PCL-matrix at significantly high-degrees or quantities of reinforcing
Drought and salinity stresses induced physio-biochemical changes in sugarcane: an overview of tolerance mechanism and mitigating approaches
Sugarcane productivity is being hampered globally under changing environmental scenarios like drought and salinity. The highly complex nature of the plant responses against these stresses is determined by a variety of factors such as genotype, developmental phase of the plant, progression rate and stress, intensity, and duration. These factors influence plant responses and can determine whether mitigation approaches associated with acclimation are implemented. In this review, we attempt to summarize the effects of drought and salinity on sugarcane growth, specifically on the plantâs responses at various levels, viz., physiological, biochemical, and metabolic responses, to these stresses. Furthermore, mitigation strategies for dealing with these stresses have been discussed. Despite sugarcaneâs complex genomes, conventional breeding approaches can be utilized in conjunction with molecular breeding and omics technologies to develop drought- and salinity-tolerant cultivars. The significant role of plant growth-promoting bacteria in sustaining sugarcane productivity under drought and salinity cannot be overlooked
Global, regional, and national burden of chronic kidney disease, 1990â2017 : a systematic analysis for the Global Burden of Disease Study 2017
Background
Health system planning requires careful assessment of chronic kidney disease (CKD) epidemiology, but data for morbidity and mortality of this disease are scarce or non-existent in many countries. We estimated the global, regional, and national burden of CKD, as well as the burden of cardiovascular disease and gout attributable to impaired kidney function, for the Global Burden of Diseases, Injuries, and Risk Factors Study 2017. We use the term CKD to refer to the morbidity and mortality that can be directly attributed to all stages of CKD, and we use the term impaired kidney function to refer to the additional risk of CKD from cardiovascular disease and gout.
Methods
The main data sources we used were published literature, vital registration systems, end-stage kidney disease registries, and household surveys. Estimates of CKD burden were produced using a Cause of Death Ensemble model and a Bayesian meta-regression analytical tool, and included incidence, prevalence, years lived with disability, mortality, years of life lost, and disability-adjusted life-years (DALYs). A comparative risk assessment approach was used to estimate the proportion of cardiovascular diseases and gout burden attributable to impaired kidney function.
Findings
Globally, in 2017, 1·2 million (95% uncertainty interval [UI] 1·2 to 1·3) people died from CKD. The global all-age mortality rate from CKD increased 41·5% (95% UI 35·2 to 46·5) between 1990 and 2017, although there was no significant change in the age-standardised mortality rate (2·8%, â1·5 to 6·3). In 2017, 697·5 million (95% UI 649·2 to 752·0) cases of all-stage CKD were recorded, for a global prevalence of 9·1% (8·5 to 9·8). The global all-age prevalence of CKD increased 29·3% (95% UI 26·4 to 32·6) since 1990, whereas the age-standardised prevalence remained stable (1·2%, â1·1 to 3·5). CKD resulted in 35·8 million (95% UI 33·7 to 38·0) DALYs in 2017, with diabetic nephropathy accounting for almost a third of DALYs. Most of the burden of CKD was concentrated in the three lowest quintiles of Socio-demographic Index (SDI). In several regions, particularly Oceania, sub-Saharan Africa, and Latin America, the burden of CKD was much higher than expected for the level of development, whereas the disease burden in western, eastern, and central sub-Saharan Africa, east Asia, south Asia, central and eastern Europe, Australasia, and western Europe was lower than expected. 1·4 million (95% UI 1·2 to 1·6) cardiovascular disease-related deaths and 25·3 million (22·2 to 28·9) cardiovascular disease DALYs were attributable to impaired kidney function.
Interpretation
Kidney disease has a major effect on global health, both as a direct cause of global morbidity and mortality and as an important risk factor for cardiovascular disease. CKD is largely preventable and treatable and deserves greater attention in global health policy decision making, particularly in locations with low and middle SDI
Nebulized Recombinant Tissue Plasminogen Activator (rt-PA) for Acute COVID-19-Induced Respiratory Failure : An Exploratory Proof-of-Concept Trial
Acknowledgments We would like to extend our sincerest gratitude to all the colleagues and hospital staff who worked tirelessly throughout the pandemic and without whom this work would not have been possible. Firstly, we would like to thank our colleagues in the intensive care unit (ICU), in particular the matrons, Sean Carroll and Sinead Hanton, and research nurses, Filipe Helder and Amitaa Maharajh for their support, and bedside nurses who bore the responsibility of drug administration. We would also like to extend our thanks to ICU consultants who acted as professional legal consultees on behalf of critical care patients. Equally, we would like to thank colleagues within the respiratory team. Their expertise was instrumental to our role in treating patients on 8N and 8E wards. A special mention to lead Nurse Mary Emerson; we were grateful for her knowledge, support and for facilitating the training for the nebulizer and drug administration on the wards. We would like to thank Aarti Nandani and all the staff in the Royal Free clinical trials pharmacy for their immense support throughout the whole pandemic, especially considering their ever-increasing workload at the time. Thanks also to the HSL coagulation laboratory, the Trust R&D department and all the staff working to cover during a very challenging time. We are also very grateful to the Royal Free charity for funding this study. Finally, we would like to thank all the clinical nurses, physiotherapists, research data managers and healthcare professionals within the Haemophilia department (and wider hospital) for all their many efforts in supporting this study. This trial was overseen by an independent data monitoring committee, chaired by Najib Rahman, Director of the Oxford Respiratory Trials Unit, University of Oxford and comprises the following committee members: Mike Makris, Jonathan Silversides and Henry Watson. Funding Royal Free Charity Trust Fund 35 provided funding for this study. The study drug was provided by Boehringer Ingelheim (BI). BI had no role in the design, analysis, or interpretation of the results. They were given the opportunity to review the manuscript for medical and scientific accuracy since it relates to BI substances and intellectual property considerations.Peer reviewedPublisher PD
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