72 research outputs found

    Minimizing localization error and ensure security of DVHOP using random key approach

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    Communication through the mobile network is need of the hour. Thus localization becomes important issue discussed in this paper. Algorithms are many which can be range free and range based. The DVHOP algorithm with random key is used to solve the localization problem. The localization is required since node when on the go will require to disseminate data then position determinism is paramount which is achieved with the help of localization. Distance could be of any range when mobile nodes are considered hence range free algorithm is considered. Security aspect of the data is paramount. Since node capture attack is common. Ways to detect and prevent the attack in terms of Random key is suggested. The result obtained will be in terms of the localization error which is given both in terms of localization with and without Node capture attack and random key

    Pili in Probiotic Bacteria

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    The ability to adhere to intestinal epithelial tissue and mucosal surfaces is a key criterion in selecting probiotics. Adhesion is considered to be a prerequisite for successful colonization and survival in the gastrointestinal tract to provide persistent beneficial effects to the host. Bacteria express a multitude of surface components that mediate adherence. Pili or fimbriae are surface adhesive components implicated in initiating bacterial adhesion and mediating interaction with the host. These nonflagellar proteinaceous fiber appendages were identified and explored over several decades in pathogenic bacteria, and many distinct types are known. However, the presence of pili in probiotics and/or commensalic bacteria has only recently been recognized. Thus knowledge about pili in probiotics is relatively limited, but structural and functional data have begun to emerge. Availability of these data in the future would enable us to understand the pili-mediated adhesion strategies of probiotics. This knowledge could be utilized to develop antiadhesion-based therapies against bacterial infections as well as probiotic designs for beneficial effects. This chapter will briefly summarize the current knowledge of pili in probiotics with emphasis on members of lactobacilli and bifidobacteria

    Comparing socio-economic inequalities in self-reported and undiagnosed hypertension among adults 45 years and over in India: what explains these inequalities?

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    Background: Hypertension (HTN) is a leading cause of mortality and morbidity in developing countries. For India, the hidden burden of undiagnosed hypertension is a major concern. This study aims to assess and explain socio-economic inequalities among self-reported and undiagnosed hypertensives in India. Methods: The study utilized data from the Longitudinal Aging Study in India (LASI), a nationally-representative survey of more than 72,000 older adults. The study used funnel plots, multivariable logistic regression, concentration indices, and decomposition analysis to explain the socio-economic gap in the prevalence of self-reported and undiagnosed hypertension between the richest and the poorest groups. Results: The prevalence of self-reported and undiagnosed hypertension was 27.4 and 17.8% respectively. Monthly per capita consumption expenditure (MPCE) quintile was positively associated with self-reported hypertension but negatively associated with undiagnosed hypertension. The concentration index for self-reported hypertension was 0.133 (p < 0.001), whereas it was − 0.047 (p < 0.001) for undiagnosed hypertension. Over 50% of the inequalities in self-reported hypertension were explained by the differences in the distribution of the characteristics whereas inequalities remained unexplained for undiagnosed hypertension. Obesity and diabetes were key contributors to pro-rich inequality. Conclusions: Results imply that self-reported measures underestimate the true prevalence of hypertension and disproportionately affect the poorer MPCE groups. The prevalence of self-reported HTN was higher in the richest group, whereas socio-economic inequality in undiagnosed hypertension was significantly concentrated in the poorest group. As majority of the inequalities remain unexplained in case of undiagnosed hypertension, broader health systems issues including barriers to access to health care may be contributing to inequalities

    A longitudinal study of incident hypertension and its determinants in Indian adults aged 45 years and over: evidence from nationally representative WHO-SAGE study (2007-2015) Running head Incident hypertension and its determinants

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    Objectives: Hypertension (HT) is a leading cause of mortality and morbidity in developing countries. This study aimed to estimate the incidence of HT among adults aged 45 years and older in India and its associated risk factors. Methods: This study used longitudinal data from the Indian sample of the first and second waves of the World Health Organization Study on Global Ageing and Adult Health (WHO-SAGE). A bivariate analysis using Pearson's chi-square test was done to examine the associations of individual, lifestyle, and household characteristics with HT status reported in Wave 2. Incident HT changes were analyzed by adjusting for various covariates in the generalized estimating equation (logit link function) with an exchangeable correlation matrix and robust standard errors. Results: The study found that during the 8-year period from 2007 to 2015, the incidence of HT in individuals aged 45 years and over was 20.8%. Pre-hypertensive individuals had an overall incidence rate of 31.1 per 1,000 [95% confidence interval (CI): 26.20–35.9] and a 2.24 times higher odds ratio: 2.24 (95% CI: 1.65–3.03) of developing incident HT compared to those who were normotensive. Adults aged 45 years and older, overweight/obese individuals, and women were more at risk of incident HT. Conclusion: One in five individuals had developed HT over 8 years, with a greater risk of incident HT among women than men. Pre-hypertensive individuals were at a greater risk of developing incident HT compared to normotensive individuals. The study recommends comprehensive and effective management of pre-HT to tackle the burden of H

    Oxidative environment and redox homeostasis in plants: dissecting out significant contribution of major cellular organelles

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    Plant cells are often exposed to oxidative cellular environments which result in the generation of toxic reactive oxygen species (ROS). In order to detoxify the harmful ROS, plants have evolved various strategies including their scavenging and antioxidant machinery. Plant cells contain many enzymatic and non-enzymatic antioxidants which aid in removing the toxic oxygen molecules. Various antioxidant molecules localized within different cellular compartments play crucial role(s) during this process, which includes both redox-signalling and redox-homeostasis. The present review gives an overview of cellular oxidative environment, redox signalling operative within a cell and contributions of major cellular organelles towards maintaining the redox homeostasis. Additionally, the importance of various antioxidant enzymes working in an orchestrated and coordinated manner within a cell, to protect it from stress injury has been presented. We also present the state-of-the-art where transgenic approach has been used to improve stress tolerance in model and crop species by engineering one or more than one of these components of the ROS scavenging machinery

    Application of Cone Beam Computerized Tomography in Implantology

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    Dental implants have gained immense popularity and wide acceptance because of its appearance and function simulating a natural tooth and its ability to replace the crown as well as the root of the missing tooth. It is important for dentists to be able to place the implants in the mandible and maxilla with a high degree of precision. The greater accuracy of Cone Beam Computed Tomography (CBCT) in measurements at lower radiation doses has made it a preferred option in implant dentistry. It has led to improvements in case selection and aids in both qualitative and quantitative measurement of bone, leading to a reduction in implant failure. This article provides an overview of the potential use of CBCT in implantology

    Association of inflammatory biomarkers with lung cancer in North Indian population

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    Background: Lung cancer is characterized by uncontrolled cell growth of the lung tissues. It is the leading cause of cancer-related deaths worldwide.Objectives: The study aimed to determine the circulating CRP, TNF-α, IL-6 and IL-8 levels in lung cancer and healthy control and also established association between these biomarkers with the smoking status as well as the stages of the disease.Methodology: 51 lung cancer patients and 51 healthy controls were enrolled in this case-control study. The serum levels of CRP, TNF-α, IL-6 and IL-8 were measured in lung cancer patients and healthy control groups.Results: The levels of serum CRP, TNF-α, IL-6 and IL-8 were significantly higher in lung cancer patients when compared with controls(P&lt;0.0001). The levels of these biomarkers were also significantly higher in stage iii/iv as compared to stage i/ii(P&lt;0.001). Significant difference in the levels of these biomarkers were also found in smoker and non-smoker lung cancer patients as compared to controls(P&lt;0.001).Conclusion: CRP, TNF-α, IL-6 and IL-8 are the promising biomarkers in the identification of lung cancer patients. The study also supports the association of inflammatory markers to lung cancer risk. Hence these findings suggest the levels of these biomarkerscould be a useful tool for guiding the diagnosis of lung cancer.Keywords: Lung cancer, biomarker, inflammation, stage, smoking

    Prospective randomised study of cases of pelvic fracture urethral distraction defects managed by early alignment versus initial suprapubic urinary diversion with delayed urethroplasty

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    Background: In complex pelvic fracture urethral distraction defects (PFUDD), early management prevents incidence of devastating complications such as urinary incontinence, restenosis and urethra cutaneous fistula. The aim of the present study was to study the outcome of patients with PFUDD undergoing early alignment (either by rail roading or endoscopic) compared with initial suprapubic urinary diversion with delayed urethroplasty.Methods: This was a prospective randomized study done at KGMU, Lucknow; having PFUDD during the period from June 2014 to July 2017. Patients with PFUDD were randomized in to two groups. Group A included 22 patients and managed by supra pubic cystostomy followed by delayed urethroplasty. Group B included 23 patients and managed by primary alignment by rail-roading and early endoscopic alignment. Patients were followed up after 6 weeks, 3 months and 6 months for measuring the primary and secondary outcomes during follow up.Results: The most common age group that sustained pelvic fracture urethral distraction defects injury are male of 21-40 years. In group A, stricture was present in all patients at 6 weeks post-surgery. Open urethroplasty was done at 3 months in 60% and 10% patients at 6 months.  In group B, stricture was present in 80% at 6 weeks, 40% at 3 months and 10% at 6 months. The incidence of ED in group A at 6 weeks, 3 months, was 25% patient which reduced to 20% at 6 months. In group B, ED was present in 30% patients 6 weeks, 3 months and which reduced to 25% at 6 months. No incontinence was observed in both groups.Conclusions: Primary realignment has significant benefits compared to SPC as realignment approach is associated with a 50%-55% decrease in stricture formation
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