101 research outputs found

    A Meta-Analysis of Workaholism

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    This meta-analysis examines the relationship between workaholism and numerous work behaviors and outcomes in an attempt to derive a consensus regarding the current state of our understanding of this construct and clarify the impact that the compulsion to work may have on an individual's life. Overall, based on data from 44 studies, results suggest that there is a considerable amount of variability between workaholism and work-related outcomes. Specifically, the two most established and reputable measures of workaholism, the Work Addiction Risk Test (WART) and the Workaholism Battery (WorkBat), appear to focus on uniquely different aspects of workaholism and were subsequently found to be differentially related to various work criteria. These findings suggest that a consistent definition and operationalization of workaholism is explicitly needed before further progress can be made.  M.A

    Miranda in Custody Determinations: Mixed Question of Fact and Law

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    This Note explores how the in custody determination was historically viewed and addresses the impact of the Court\u27s holding that it is a mixed question of fact and la

    Development of 100W Solid State Power Amplifier at 13.56?1MHz

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    Project aim is the development of a common source class B, cwrf amplifier by using MOSFET. The work includes literature survey, concept, simulation, design, fabrication and testing of the power amplifier. This single stage amplifier of more than 100W output and gain 13dB needs development in the frequency range of 13.56?1MHz. A temperature sensor at the heat sink mounting must be added along with necessary wiring to switch off the dc supply and thereby protecting the circuit in case of overheating. The ultimately developed amplifier needs testing for the frequency response, power gain and output wave shapes etc. by using a set of appropriate instruments

    Onychomycosis: dermatophytes to yeasts: an experience in and around Mumbai, Maharashtra, India

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    Background: Onychomycosis is a fungal nail infection having wide range of prevalence in different geographical regions. It becomes imperative to know prevalent causative agent in local area to improve quality of life of patients. Present study was aimed to study epidemiological, clinical and laboratory aspects of onychomycosisMethods: Study was carried out prospectively at a tertiary care teaching hospital Nail scrapings of 630 clinically suspected cases of onychomycosis over a period of 5 years (January 2012 to December 2016) were subjected to KOH examination and culture.Results: Young adults in age group of 21-40 years (67.61%) were predominantly affected with male to female ratio of 1.8:1. Overall prevalence of onychomycosis of the present study is 58.41%. Yeasts were isolated in 47.86%, dermatophytes in 30.71% and non dermatophytic filamentous fungi in 21.43%Conclusions: Present study demonstrates a shift in causative agents from dermatophytes to yeasts.

    Rupture uterus: a retrospective analytical study

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    Background: Over 500,000 women die each year due to complications of pregnancy and childbirth, a number that has remained relatively unchanged since 1990, when the first global estimates of the burden of maternal mortality were developed (WHO 2005). Objective of present study was to find out risk factors, management, related complications and associated maternal morbidity and mortality with rupture uterus.Methods: A retrospective analytical study was performed at Department of Obstetrics and Gynecology, PDU Medical College, Rajkot, Gujarat, India over a period of 3 years during 2014-2016. Evaluation of maternal age, parity, SE status, booking status, obstetric risk factors, duration of hospital stay, causes of rupture uterus, Management, intra-op and post-operative complications, maternal morbidity and mortality was done.Results: Total 29 cases of rupture uterus were found during study period. Most of them belong to age group of 21-30 (77.17%), Primipara (41.3%), Lower socioeconomic status (86.2%) and unbooked (65.52%) cases. Most common cause of rupture uterus was prolonged obstructed labor (51.72%) while scarred uterus (41.73%), transverse lie (3.44%) and injudicious use of oxytocin (3.44%) were others. In 16 cases obstetric Hysterectomy (55.17%) was performed while in 13 cases repair (44.82%) was done. We have found 2 cases of maternal death (6.89%) while study period with rupture uterus.Conclusions: Present retrospective analytical study has concluded that rupture uterus is a life threatening complication. Proper antenatal and intrapartum care, identification of high risk factors, promotion of skilled attendance at birth and institutional delivery are key factors in reduction and early diagnosis

    Effects of Exercise on Immune Responses to Vaccination in Chronically Stressed Mice

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    Introduction: Previous studies have shown that exercise has been related with strengthened vaccine-induced immune responses and chronic stress decreases immune function. This study aims to determine whether exercise can alleviate chronic stress-induced attenuation of vaccination responses in mice. Methods: C57BL/6 mice, aged 7 weeks old, were randomly assigned: control (CTRL, n=9), sedentary (SED, n=7), eccentric exercise (ECC, n=9), or voluntary wheel running (VWR, n=10) group. SED, ECC, and VWR mice received restraint stress for 6 hours/day, 5 days/week for 3 weeks. CTRL mice did not receive restraint stress. ECC mice exercised running downhill at -20% grade at 17m/min for 45 min. VWR mice voluntarily ran on a telemetered wheel. All groups received an OVA vaccination in two phases: first a sensitization phase with an intramuscular vaccination post 1-week of stress in the gastrocnemius muscle, a second intradermal vaccination in the ear post 3-weeks of stress. Swelling in the ear was measured to determine the proportional delayed-type hypersensitivity (DTH) reaction as part of the cell-mediated immune response (recruitment of memory T cells and effector cells) to the vaccine. Blood from the retro-orbital vein was collected pre-vaccination, 1wk, 2wk and 4wk post-vaccination for antibody responses. Results: In this study, there was a trend in increased humoral immunity, in regards to IgM and IgG antibody titers in the exercised groups. This study did not show any significant differences in cell-mediated immunity (indicated with delayed-type hypersensitivity (DTH)), with respect to the effect of exercise on chronic stress. Conclusion: Both acute eccentric exercise and voluntary wheel exercise training had a tendency to attenuate stress-induced reductions in antibody responses, but not cell-mediated responses. Further experiments are required to determine the precise significance of exercise’s effects, as well as the determination of the underlying mechanisms.Ope

    Robotic Guided Minimally Invasive Spine Surgery

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    Minimally invasive spine surgery (MISS) continues to evolve, and the advent of robotic spine technology may play a role in further facilitating MISS techniques, increasing safety, and improving patient outcomes. In this chapter we review early limitations of spinal robotic systems and go over currently available spinal robotic systems. We then summarize the evidence-based advantages of robotic spine surgery, with an emphasis on pedicle screw placement. Additionally, we review some common and expanded clinical applications of robotic spine technology to facilitate MISS. The chapter concludes with a discussion regarding the current limitations and future directions of this relatively novel technology as it applies to MISS

    Dopamine Transporter imaging with Tc-99m TRODAT-1 SPECT in Parkinson’s disease and its correlation with clinical disease severity

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    Objective(s): To evaluate the role of Tc-99m TRODAT-1 Single Photon Emission Computed Tomography (SPECT) in Parkinson’s Disease (PD) by assessing the correlation of clinical disease severity, disease duration and age at onset of disease with specific uptake ratio of Tc-99m TRODAT-1 in striatum.Methods: The study included 63 patients in age range of 40-72 years with clinical diagnosis of PD and nine controls. Clinical history of patients was obtained regarding age at onset of disease and disease duration. Disease severity in each patient was assessed using H and Y stage and UPDRS. Tc-99m TRODAT-1 SPECT was performed and specific uptake ratios were calculated for six regions in bilateral striata, caudate nuclei and putamina. Difference in specific uptake ratios between different stages of disease was analyzed for statistical significance. Specific uptake ratios were correlated with UPDRS, motor score of UPDRS, duration of disease and age at onset of disease using Pearson’s correlation co-efficient.Results: Median specific uptake ratio was found to be least in contralateral putamen for all H and Y stages. There was a statistically significant difference between specific uptake ratios of controls vs stage 1, stage 1 vs 2, 1 vs 3, 1 vs 4, and 2 vs 4 for all 6 regions. The difference in uptake ratio between 3 and 4 H and Y stages was significant only for contralateralregions. There was no significant difference in uptake ratio between 2 and 3 H and Y stages. The uptake ratios showed a strong negative correlation with UPDRS and motor score, a weak negative correlation with duration of disease and no significant correlation with age at onset of disease.Conclusion: We conclude that Tc-99m TRODAT-1 SPECT can be used to assess the disease severity in PD patients

    Negative regulation of syntaxin4/SNAP-23/VAMP2-mediated membrane fusion by Munc18c <i>In Vitro</i>

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    Background: Translocation of the facilitative glucose transporter GLUT4 from an intracellular store to the plasma membrane is responsible for the increased rate of glucose transport into fat and muscle cells in response to insulin. This represents a specialised form of regulated membrane trafficking. Intracellular membrane traffic is subject to multiple levels of regulation by conserved families of proteins in all eukaryotic cells. Notably, all intracellular fusion events require SNARE proteins and Sec1p/Munc18 family members. Fusion of GLUT4-containing vesicles with the plasma membrane of insulin-sensitive cells involves the SM protein Munc18c, and is regulated by the formation of syntaxin 4/SNAP23/VAMP2 SNARE complexes. Methodology/Principal Findings Here we have used biochemical approaches to characterise the interaction(s) of Munc18c with its cognate SNARE proteins and to examine the role of Munc18c in regulating liposome fusion catalysed by syntaxin 4/SNAP23/VAMP2 SNARE complex formation. We demonstrate that Munc18c makes contacts with both t- and v-SNARE proteins of this complex, and directly inhibits bilayer fusion mediated by the syntaxin 4/SNAP23/VAMP2 SNARE complex. Conclusion/Significance Our reductionist approach has enabled us to ascertain a direct inhibitory role for Munc18c in regulating membrane fusion mediated by syntaxin 4/SNAP23/VAMP2 SNARE complex formation. It is important to note that two different SM proteins have recently been shown to stimulate liposome fusion mediated by their cognate SNARE complexes. Given the structural similarities between SM proteins, it seems unlikely that different members of this family perform opposing regulatory functions. Hence, our findings indicate that Munc18c requires a further level of regulation in order to stimulate SNARE-mediated membrane fusion
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