22 research outputs found

    Static Structural Analysis of Frame of an Commercial Autorickshaw to Reduce Accidental Damage Using Ansys

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    This research deals with the reduction of crash injuries occurred in the motorised autorickshaw. One of the easiest means of transportation is travelling in an autorickshaw in India. It is cheap, affordable, and can carry up to 3-6 passengers depending on manufacturer. The focuses of crash analysis in the present research are material properties, frame or superstructure and area of impact. Instead of cast iron if carbon steel is used, the strength characteristics of frame increases. The strength to weight ratio of carbon steel is higher. The frame is designed in such a way that the members experience minimum stress and have minimum deformation. Members are kept in the roof so that the members can withstand side impact and the rear impact that will cause minimum damage to the passenger compartment. For frontal impact, a horizontal member is provided to absorb frontal impact force. The main focus of this project is passengers? and driver?s safety

    Heaviness of Smoking Index versus Fagerstrom Test for Nicotine Dependence among Current Smokers of Ahmedabad City, India

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    Background: The purpose of this research was to compare Heaviness of Smoking Index (HSI), high earlysmoking, and heavy smoking with the Fagerstrom Test for Nicotine Dependence (FTND) and further toevaluate the sensitivity of HSI, high early smoking, and heavy smoking among existing smokers.Methods: A cross sectional study was conducted by using FTND questionnaire among 200 existing smokers. Thecut-off point for HSI was kept at 4; high early smokers and heavy smokers were classified as those individualswho smoked within 30 minutes after waking up and individuals who smoked 30 cigarettes or more daily,respectively. Receiver-operating characteristic (ROC) analysis and Cohen's Kappa statistics were evaluated.Findings: A significant agreement was observed between the HSI and the FTND, having Kappa value of 0.70,with good sensitivity of 78.16% and specificity as high as 91.15%. The ROC analysis confirmed that a cut-offscore of 4 for HSI was suitable. Agreement between FTND and high early smoking was observed to be moderate(Kappa = 0.47, P < 0.001), while very low agreement (Kappa = 0.19, P < 0.001) was observed for FTND andheavy smoking.Conclusion: Results show that HSI is an effective tool which can be substituted for the conventional FTND bythe clinicians, psychotherapists, and investigators in health research

    Drug utilization study of off-label drug use in outpatient department of psychiatry: a prospective study at a tertiary care teaching hospital

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    Background: In the absence of standard psychiatric prescribing information, physician often use drugs in an off-label way. Many studies have been published across the globe reporting different rates of off-label use. There is currently no study based on Indian Drug Formulary.Methods: After taking permission from Institutional Ethics Committee (IEC), a prospective study was conducted among 285 patients attending Psychiatry outpatient department for the period of 4 months. Data related to demographic parameters, diagnosis of psychiatry conditions and drugs details were collected directly from the patient's medical records and entered in Case Record Form (CRF).The off-label drugs were categorized as per National Formulary of India. Multivariate binary logistic regression model was used to determine the predictors of off- label drug prescribing. The data were statistically analyzed using SPSS version 19 and chi-square test.Results: A total of 285 patients (169 males, 116 females) were included in the study with mean age of 36.54±13.91 years. Most of the patients (n=65, 22.8%) were diagnosed as schizophrenic. Out of 285 patients, 133(46.6%) received at least one off-label drug. A total 841 drugs were prescribed out of which 167(19.85%) were off-label. The drug most frequently prescribed as off-label were trihexiphenidyl HCL 29 (10.2%), clozapine 23 (8.1%) and clonazepam 13 (4.6%).Conclusions: Off label drugs used among psychiatry patients was 19.85%. The most frequently used off-label drugs was trihexiphenidyl HCL. The use of off-label drugs in psychiatric patients has been reportedly increasing which warrant national drug regulatory authorities to review and revise safe administration such drugs

    Ten Ways of Leveraging Ontologies for Rapid Natural Language Processing Customization for Multiple Use Cases in Disjoint Domains

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    With the ever-growing adoption of AI technologies by large enterprises, purely data-driven approaches have dominated the field in the recent years. For a single use case, a development process looks simple: agreeing on an annotation schema, labeling the data, and training the models. As the number of use cases and their complexity increases, the development teams face issues with collective governance of the models, scalability and reusablity of data and models. These issues are widely addressed on the engineering side, but not so much on the knowledge side. Ontologies have been a well-researched approach for capturing knowledge and can be used to augment a data-driven methodology. In this paper, we discuss 10 ways of leveraging ontologies for Natural Language Processing (NLP) and its applications. We use ontologies for rapid customization of a NLP pipeline, ontologyrelated standards to power a rule engine and provide standard output format. We also discuss various use cases for medical, enterprise, financial, legal, and security domains, centered around three NLP-based applications: semantic search, question answering and natural language querying

    High-resolution CT phenotypes in pulmonary sarcoidosis: a multinational Delphi consensus study

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    One view of sarcoidosis is that the term covers many different diseases. However, no classification framework exists for the future exploration of pathogenetic pathways, genetic or trigger predilections, patterns of lung function impairment, or treatment separations, or for the development of diagnostic algorithms or relevant outcome measures. We aimed to establish agreement on high-resolution CT (HRCT) phenotypic separations in sarcoidosis to anchor future CT research through a multinational two-round Delphi consensus process. Delphi participants included members of the Fleischner Society and the World Association of Sarcoidosis and other Granulomatous Disorders, as well as members' nominees. 146 individuals (98 chest physicians, 48 thoracic radiologists) from 28 countries took part, 144 of whom completed both Delphi rounds. After rating of 35 Delphi statements on a five-point Likert scale, consensus was achieved for 22 (63%) statements. There was 97% agreement on the existence of distinct HRCT phenotypes, with seven HRCT phenotypes that were categorised by participants as non-fibrotic or likely to be fibrotic. The international consensus reached in this Delphi exercise justifies the formulation of a CT classification as a basis for the possible definition of separate diseases. Further refinement of phenotypes with rapidly achievable CT studies is now needed to underpin the development of a formal classification of sarcoidosis

    Laparoscopic detorsion for bilateral ovarian torsion in a singleton pregnancy with spontaneous ovarian hyperstimulation syndrome

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    A 26-year-old primigravida with a singleton pregnancy of 9 weeks gestation presented with severe lower abdominal pain, following spontaneous hyperstimulation of the ovaries in a natural conception. Emergency laparoscopy was done and bilateral ovarian torsion with retained vascularity was noted. Bilateral detorsion with ovarian puncture and ovariopexy was performed. A review of international literature suggests that this is the first case reported with bilateral ovarian torsion following spontaneous ovarian hyperstimulation syndrome in a singleton pregnancy

    Handling Cervical Myomas

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    Compared to myomas that occur in the uterine corpus, cervical myomas are closer to other organs such as the bladder, ureter, and rectum, and the approach needs to be modified, as the organs that have to be considered differ depending on the location of the myoma. Surgical difficulties associated with these cases are, poor access to the operative field, difficulty in suturing the repairs, increased blood loss, and distortion of the anatomy of the vital neighboring structures in the pelvic cavity

    Comparative evaluation of platelet-rich fibrin with demineralized freeze-dried bone allograft in periodontal infrabony defects: A randomized controlled clinical study

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    Introduction: Several bone graft materials have been used in the treatment of infrabony defects. Demineralized freeze-dried bone allograft (DFDBA) has been histologically proven to be the material of choice for regeneration. However, platelet-rich fibrin (PRF) has been said to have several properties that aid in healing and regeneration. Hence, this study focuses on the regenerative capacity of PRF when compared with DFDBA. Materials and Methods: A total of 40 sites with intrabony defects were selected and were assigned to the test group (open flap debridement [OFD] and PRF, n = 20) and the control group (OFD + DFDBA, n = 20). At the test sites, two PRF plugs were placed in the intrabony defect after debridement of the site and flap was sutured in place. The parameters measured were probing depth (PD), relative attachment level (RAL), and gingival marginal level (GML). These parameters were measured just before surgery (baseline) and at 6 months postsurgery. The changes in PD, RAL, and GML were analyzed at baseline and postsurgically after 6 months in each group with paired t-test and between the two groups with unpaired t-test. Results: The mean reduction in PD after 6 months in the test PRF group is 3.67 ± 1.48 mm where in control DFDBA group is 3.70 ± 1.78 mm. Gain in RAL in the test PRF group is 2.97 ± 1.42 mm where in control DFDBA group, it is 2.97 ± 1.54 mm. Gingival margin migrated apically in the test PRF group by 0.43 ± 1.31 mm where in control DFDBA group by 0.72 ± 2.3 mm. It was seen that the differences in terms of PD (P = 0.96), RAL (P = 1.00) and GML (P = 0.62) were not significant. Conclusion: Platelet-rich fibrin has shown significant results after 6 months, which is comparable to DFDBA for periodontal regeneration in terms of clinical parameters. Hence, it can be used in the treatment of intrabony defects

    Quantification of accurate compositions and total abundance of homologous proteins in human tissues using conserved-plus-surrogate peptide (CPSP) approach: Application in the quantification of UDP glucuronosyltransferases

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    Characterization of accurate compositions and total abundance of homologous drug-metabolizing enzymes, such as UDP glucuronosyltransferases (UGTs), is important for predicting the fractional contribution of individual isoforms involved in the metabolism of a drug for applications in physiologically based pharmacokinetic (PBPK) modeling. Conventional targeted proteomics utilizes surrogate peptides, which often results in high technical and inter-laboratory variability due to peptide-specific digestion efficiency leading to data inconsistencies. To address this problem, we developed a novel universal conserved-plus-surrogate peptide (CPSP) approach for determining the accurate compositions and total or cumulative abundance of homologous UGTs in commercially available pooled human liver microsomes (HLM), human intestinal microsomes (HIM), human kidney microsomes (HKM), and human liver S9 (HLS9) fractions. The relative percent composition of UGT1A and UGT2B isoforms in human liver was 35:5:36:11:13 for UGT1A1:1A3:1A4:1A6:1A9, and 20:32:22:21:5 for UGT2B4:2B7:2B10:2B15:2B17. The human kidney and intestine also show unique compositions of UGT1As and UGT2Bs. The reproducibility of the approach was validated by assessing correlations of UGT compositions between HLM and HLS9 (R2>0.91). The analysis of conserved peptides also provided the absolute abundance for individual UGT isoforms included in this investigation as well as the total abundance (pmol/mg protein) of UGT1As and UGT2Bs across tissues, i.e., 268 and 342 (HLM), 21 and 92 (HIM), 138 and 99 (HKM), respectively. In summary, the CPSP approach could be utilized for applications in the in-vitro to in-vivo extrapolation (IVIVE) of drug metabolism and PBPK modeling

    Simplifying the Extended Clearance Concept Classification System (EC3S) to Guide Clearance Prediction in Drug Discovery.

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    The Extended Clearance Concept Classification System was established as a development-stage tool to provide a framework for identifying fundamental mechanism(s) governing drug disposition in humans. In the present study, the applicability of the EC3S in drug discovery has been investigated. In its current format, the EC3S relies on low-throughput hepatocyte uptake data, which are not frequently generated in a discovery setting.A relationship between hepatocyte uptake clearance and MDCK permeability was first established along with intrinsic clearance from human liver microsomes. The performance of this approach was examined by categorizing 64 drugs into EC3S classes and comparing the predicted major elimination pathway(s) to that observed in humans. As an extension of the work, the ability of the simplified EC3S to predict human systemic clearance based on intrinsic clearance generated using in-vitro metabolic systems was evaluated.The assessment enabled the use of MDCK permeability and unscaled unbound intrinsic clearance to generate cut-off criteria to categorize compounds into four EC3S classes: Class 12ab, 2cd, 34ab, and 34cd, with major elimination mechanism(s) assigned to each class. The predictivity analysis suggested that systemic clearance could generally be predicted within threefold for EC3S class 12ab and 34ab compounds. For classes 2cd and 34cd, systemic clearance was poorly predicted using in-vitro systems explored in this study.Collectively, our simplified classification approach is expected to facilitate the identification of mechanism(s) involved in drug elimination, faster resolution of in-vitro to in-vivo disconnects, and better design of mechanistic pharmacokinetic studies in drug discovery
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