120 research outputs found

    Cholesterol Behind the Whole Life of Humans

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    Cholesterol is a sterol, synthesized by animal cells and vital lipid molecule for human cells (animal) and is also a component of the diet, being present in food of animal origin. Its main function is to maintain the integrity and fluidity of cell membranes and to serve as a precursor for the synthesis of substance that are vital for the organism including steroid hormones, bile acids and vitamin D. animal cells acquire cholesterol from extracellular lipoprotein and form new synthesis of cells. Dietary cholesterol comes exclusively from animal sources, it is naturally present in our diet and tissues. Cholesterol is synthesized in the human body in order to maintain a stable peel when dietary intake is low, given the necessity for cholesterol, very effective intestinal uptake mechanisms bile acid and cholesterol reabsorption cycles exist1. Conversely carbohydrates are poorly absorbed and indeed rapidly excreted. Dietary cholesterol content does not significantly influence cholesterol value, which are regulated by various nutritional. Factors that influence cholesterol absorption (or) synthesis. Recent study data do not support a link between dietary cholesterol and cardio vascular diseases2

    Impact of Supervision on Rework in Construction Industry

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    The role of supervision plays a vital role in the construction projects. Supervision due to unskilled labours is believed to be one of the major causes of rework. Therefore, skilled supervisors along with experience play an important role in reducing the amount of rework due to construction defects. This paper shows the quality of site supervision in India as it is related to the levels of experience and skill of a supervisor. Hence, the paper gives the fair idea about the relationship between the quality of site supervision and rework in construction industry. Based on site data collection considering five building construction sites in India, this paper suggests that the principal cause of rework during construction is due to the unskilled supervision without experience which leads to the defects in construction industry

    Cardiovascular Diseases Risk Reduction And Lifestyle Modification:Cross Sectional Ansalysis Of Patient Responses.

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    A decrease in cardiovascular event risk with a decrease in total and LDL – cholesterol level is termed as “cholesterol paradox” or “risk factor reversal”. Cardiovascular risk does not have a linear relationship between LDL – cholesterol levels, and other substantial risk factors of cardiovascular events are being disregarded.The aim of this study is, to identify modifiable risk factors of cardiovascular events other than those well proved to cause dyslipidemia. A cross-sectional study was conducted with 652 participants in a tertiary care hospital. Patients were grouped into two, based on the history of cardiovascular events. Demographics and patient responses captured using pre-validated questionnaires were analyzed. 5mL blood samples were collected by venipuncture and lipid profile was estimated. Association between cardiovascular events and explanatory variables. was determined using Chi square test and Odds ratio at 95% confidence intervals. Higher risk of CV events was found among smokers 0.232 [0.144 – 0.373]. Consumption of white sugar, refined oil, processed cold beverages and fast food products increased CV risk respectively. Moreover, total cholesterol, LDL-C and triglycerides were found to decrease after one year of counselling the patients. The classical hypothesis of dyslipidemia induced atherosclerosis may not be the predominant cause of CV events. Herein, we report no association between high fat diet and CV risk while we observed higher risk in consumers of refined and ultra processed food products. However, significant control of cholesterol was observed in patients who shifted to Unrefined food products.  

    Forensic Identification of Suspected Poached Wild Boar (Sus scrofa affinis)

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    A case of suspected wild boar death due to dynamite blast by poachers was received by us for confirmation. The skin sample was collected and examined histologically for identification based on hair follicle arrangement in the horizontal section of skin. The horizontal sections of skin from both domestic and wild boar was stained in order to study the distribution of hair follicles. Linear arrangement of hair follicles comprising three primary follicles in a row was observed in both domestic and suspected wild boar. Based on circumstantial evidence it was concluded that it may be belonging to wild boar

    Aerosol control on depth of warm rain in convective clouds

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    Aircraft measurements of cloud condensation nuclei (CCN) and microphysics of clouds at various altitudes were conducted over India during CAIPEEX (Cloud Aerosol Interaction and Precipitation Enhancement Experiment) phase I and II in 2009 and 2010 respectively. As expected, greater CCN concentrations gave rise to clouds with smaller drops with greater number concentrations (Nc). The cloud drop effective radius (re) increased with distance above cloud base (D). Warm rain became detectable at the tops of growing convective clouds when re exceeded 12 µm with appreciable liquid water content (> 0.01 g/Kg). The re is determined by the number of activated CCN, Nad, and D. The Nad can be approximated by the maximum measured values of Nc. Higher Nc resulted in greater D for reaching the re threshold for onset of warm rain, re, denoted as D. In extreme cases of highly polluted and moist air that formed the monsoon clouds over the Indo-Gangetic plains, D exceeded 6 km, well above the 0{degree sign}C isotherm level. The precipitation particles were initiated there as supercooled rain drops at a temperature of -8{degree sign}C. Giant CCN reduced re and D, by initiating raindrops at warmer temperatures. This effect was found mainly in dusty air masses over the Arabian Sea. Besides, the aerosol effect on D, D was found to decrease with increase in cloud water path

    Ublažavajući učinak biljke Andrographis paniculata na promjene u brojlera uzrokovane bakterijom E. coli

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    The present investigation was carried out to evaluate the ameliorative effect of Andrographis paniculata during E. coli-induced pathology in broilers. Day-old broiler chicks (n = 100) were randomly divided into four equal groups. Group I served as a negative control and was fed with a commercial diet. On day 8, the birds from groups II and IV were challenged with a single oral dose of E. coli broth culture 0.2 mL (1×109 cfu/mL). Groups III and IV were fed with Andrographis paniculata 5 g/kg of feed from day old to the end of the experiment. The total duration of the experiment was 35 days. On the 7th, 21st and 28th day post infection (DPI) with E. coli, six birds from each group were randomly sacrificed and observed for gross and histopathogical observations. Group II birds showed ascites and thickened intestinal mucosa with cheesy material on the 28th and 35th DPI. Pathomorphological alterations, viz. congestion, hemorrhages, degenerations, necrosis, fibrinous exudates, edema, mononuclear cell and heterophil infiltration in the lung, liver, heart, kidneys and duodenum were observed in group II birds, along with depletion of the lymphoid cell population in the spleen. Pretreatment of Andrographis paniculata in the E. coli challenged group led to mild degenerative changes in all organs, indicating the putative protective effect of the plant during E. coli induced pathology in broilers. However, further, more elaborated study is required to calculate the dosage of Andrographis paniculata for use as an antibacterial agent in broiler feed.Istraživanje je provedeno kako bi se procijenio ublažavajući učinak biljke Kineski andrografis (Andrographis paniculata) na patološke procese u brojlera uzrokovane bakterijom E. coli. Jednodnevni pilići (n = 100) slučajnim su odabirom podijeljeni u četiri jednake skupine. Prva je skupina poslužila kao negativna kontrola i hranjena je komercijalnom hranom. Osmi dan pilićima iz druge i četvrte skupine peroralno je dana jednokratna doza E. coli bujona u količini od 0,2 mL (1×109 cfu/mL). Treća i četvrta skupina hranjene su biljkom Andrographis paniculata u količini od 5 g/kg hrane od početka do kraja pokusa. Istraživanje je trajalo 35 dana. Sedmi, 21. i 28. dan nakon zaražavanja bakterijom E. coli po šest pilića iz svake skupine nasumce je usmrćeno te su promatrane makroskopske i patohistološke promjene. U drugoj je skupini uočen ascites i zadebljanje crijevne sluznice sa sirastim naslagama 28. i 35. dan poslije zaražavanja. U toj su skupini promatrane patomorfološke promjene poput kongestije, krvarenja, degeneracije, nekroze, fibrinskog eksudata, edema, infiltracije pluća, jetre, srca, bubrega i dvanaesnika mononuklearnim i heterofilnim stanicama, uz depleciju limfoidnih stanica u slezeni. Dodavanje biljke Andrographis paniculata skupini zaraženoj bakterijom E. coli utjecalo je na pojavu blažih degenerativnih promjena u svim organima, što upućuje na zaštitni učinak biljke tijekom izlaganja brojlera bakteriji E. coli. Potrebna su daljnja istraživanja kako bi se izračunala doza biljke Andrographis paniculata kao antibakterijskog dodatka/lijeka u prehrani brojlera

    A Flexible Crypto-system Based upon the REDEFINE Polymorphic ASIC Architecture

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    The highest levels of security can be achieved through the use of more than one type of cryptographic algorithm for each security function. In this paper, the REDEFINE polymorphic architecture is presented as an architecture framework that can optimally support a varied set of crypto algorithms without losing high performance. The presented solution is capable of accelerating the advanced encryption standard (AES) and elliptic curve cryptography (ECC) cryptographic protocols, while still supporting different flavors of these algorithms as well as different underlying finite field sizes. The compelling feature of this cryptosystem is the ability to provide acceleration support for new field sizes as well as new (possibly proprietary) cryptographic algorithms decided upon after the cryptosystem is deployed.Defence Science Journal, 2012, 62(1), pp.25-31, DOI:http://dx.doi.org/10.14429/dsj.62.143

    Machine Learning and External Validation of the IDENTIFY Risk Calculator for Patients with Haematuria Referred to Secondary Care for Suspected Urinary Tract Cancer

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    Background: The IDENTIFY study developed a model to predict urinary tract cancer using patient characteristics from a large multicentre, international cohort of patients referred with haematuria. In addition to calculating an individual's cancer risk, it proposes thresholds to stratify them into very-low-risk (<1%), low-risk (1–<5%), intermediate-risk (5–<20%), and high-risk (≥20%) groups. Objective: To externally validate the IDENTIFY haematuria risk calculator and compare traditional regression with machine learning algorithms. Design, setting, and participants: Prospective data were collected on patients referred to secondary care with new haematuria. Data were collected for patient variables included in the IDENTIFY risk calculator, cancer outcome, and TNM staging. Machine learning methods were used to evaluate whether better models than those developed with traditional regression methods existed. Outcome measurements and statistical analysis: The area under the receiver operating characteristic curve (AUC) for the detection of urinary tract cancer, calibration coefficient, calibration in the large (CITL), and Brier score were determined. Results and limitations: There were 3582 patients in the validation cohort. The development and validation cohorts were well matched. The AUC of the IDENTIFY risk calculator on the validation cohort was 0.78. This improved to 0.80 on a subanalysis of urothelial cancer prevalent countries alone, with a calibration slope of 1.04, CITL of 0.24, and Brier score of 0.14. The best machine learning model was Random Forest, which achieved an AUC of 0.76 on the validation cohort. There were no cancers stratified to the very-low-risk group in the validation cohort. Most cancers were stratified to the intermediate- and high-risk groups, with more aggressive cancers in higher-risk groups. Conclusions: The IDENTIFY risk calculator performed well at predicting cancer in patients referred with haematuria on external validation. This tool can be used by urologists to better counsel patients on their cancer risks, to prioritise diagnostic resources on appropriate patients, and to avoid unnecessary invasive procedures in those with a very low risk of cancer. Patient summary: We previously developed a calculator that predicts patients’ risk of cancer when they have blood in their urine, based on their personal characteristics. We have validated this risk calculator, by testing it on a separate group of patients to ensure that it works as expected. Most patients found to have cancer tended to be in the higher-risk groups and had more aggressive types of cancer with a higher risk. This tool can be used by clinicians to fast-track high-risk patients based on the calculator and investigate them more thoroughly
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