11,227 research outputs found

    Line shifts in the first overtone of DF broadened by HF

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    Line spectra shifts in HF and in first overtone band of DF induced by HF pressure

    Total laparoscopic hysterectomy: an experience at a tertiary care hospital

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    Background: This study is aimed to review indications, demographic data of patients, clinical outcomes and safety of total laparoscopic hysterectomy.Methods: This is a prospective observational study of total 150 patients who underwent total laparoscopic hysterectomy (TLH) from 1st June 2017 to 30th November 2018 in GMERS Civil Hospital Sola.Results: ~45% patients were between 40-50 years age group; 60% patients had 2 or more deliveries; commonest indication was symptomatic adenomyosis ; uterine size in ~57% of patients were up to 6 weeks; duration of surgery in ~91% of patients <120 minutes; intraoperative blood loss in all cases <200ml; no intra-operative and postoperative complications were encountered.Conclusions: TLH is safe procedure with minimal blood loss, minimal postoperative pain and discomfort and shorter duration of hospital stay when performed via expert hands

    Homotopy Analysis Approach of Boussinesq Equation for Infiltration Phenomenon in Unsaturated Porous Medium.

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    oai:ojs.pkp.sfu.ca:article/11Boussinesq’s equation is one-dimensional nonlinear partial differential equation which represents the infiltration phenomenon. This equation is frequently used to study the infiltration phenomenon in unsaturated porous medium. Infiltration is the process in which the groundwater of the water reservoir has entered in the unsaturated soil through vertical permeable wall. An approximate analytical solution of nonlinear partial differential equation is presented by homotopy analysis method. The convergence of homotopy analysis solution is discussed by choosing proper value of convergence control parameter. The solution represents the height of free surface of infiltrated water

    Reliable dual-redundant sensor failure detection and identification for the NASA F-8 DFBW aircraft

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    A technique was developed which provides reliable failure detection and identification (FDI) for a dual redundant subset of the flight control sensors onboard the NASA F-8 digital fly by wire (DFBW) aircraft. The technique was successfully applied to simulated sensor failures on the real time F-8 digital simulator and to sensor failures injected on telemetry data from a test flight of the F-8 DFBW aircraft. For failure identification the technique utilized the analytic redundancy which exists as functional and kinematic relationships among the various quantities being measured by the different control sensor types. The technique can be used not only in a dual redundant sensor system, but also in a more highly redundant system after FDI by conventional voting techniques reduced to two the number of unfailed sensors of a particular type. In addition the technique can be easily extended to the case in which only one sensor of a particular type is available

    Monojet searches for momentum-dependent dark matter interactions

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    We consider minimal dark matter scenarios featuring momentum-dependent couplings of the dark sector to the Standard Model. We derive constraints from existing LHC searches in the monojet channel, estimate the future LHC sensitivity for an integrated luminosity of 300 fb−1, and compare with models exhibiting conventional momentum-independent interactions with the dark sector. In addition to being well motivated by (composite) pseudo-Goldstone dark matter scenarios, momentum-dependent couplings are interesting as they weaken direct detection constraints. For a specific dark matter mass, the LHC turns out to be sensitive to smaller signal cross-sections in the momentum-dependent case, by virtue of the harder jet transverse-momentum distribution

    Solution of the Burger\u27s Equation for Longitudinal Dispersion Phenomena Occurring in Miscible Phase Flow Through Porous Media

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    An approximate solution of longitudinal dispersion phenomena occurring in two phase miscible fluid flow through porous media has been obtained by using the group theoretic approach. The longitudinal dispersion coefficient is assumed to be directly proportional to the concentration of the fluid for a distance x and at any time t &gt; 0. The graphical representation for the concentration of the fluid for a distance x and at time t &gt; 0 has been obtained using Mat lab coding

    Recent advances in pre-exposure prophylaxis for HIV

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    Although pre-exposure prophylaxis (PrEP)-the use of antiretroviral drugs by non-infected people to prevent the acquisition of HIV-is a promising preventive option, important public health questions remain. Daily oral emtricitabine (FTC)-tenofovir disoproxil fumarate (TDF) is highly efficacious in preventing the acquisition of HIV in people at risk as a result of a range of different types of sexual exposure. There is good evidence of efficacy in women and men, and when men who have sex with men use event based dosing. Studies have been conducted in several countries and epidemics. Because adherence to this treatment varies greatly there are questions about its public health benefit. Oral FTC-TDF is extremely safe, with minimal impact on kidney, bone, or pregnancy outcomes, and there is no evidence that its effectiveness has been reduced by risk compensation during open label and programmatic follow-up. It is too early to assess the impact of this treatment on the incidence of sexually transmitted infections (STIs) at a population level. Many challenges remain. Access to pre-exposure prophylaxis is limited and disparities exist, including those governed by race and sex. Different pricing and access models need to be explored to avoid further widening inequalities. The optimal combination prevention program needs to be defined, and this will depend on local epidemiology, service provision, and cost effectiveness. This review updates the evidence base for pre-exposure prophylaxis regarding its effectiveness, safety, and risk compensation

    Suppression of inflammation by low-dose methotrexate is mediated by adenosine A(2A )receptor but not A(3 )receptor activation in thioglycollate-induced peritonitis

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    Prior studies demonstrate that adenosine, acting at one or more of its receptors, mediates the anti-inflammatory effects of methotrexate in animal models of both acute and chronic inflammation. Both adenosine A(2A )and A(3 )receptors contribute to the anti-inflammatory effects of methotrexate treatment in the air pouch model of inflammation, and the regulation of inflammation by these two receptors differs at the cellular level. Because different factors may regulate inflammation at different sites we examined the effect of low-dose weekly methotrexate treatment (0.75 mg/kg/week) in a model of acute peritoneal inflammation in adenosine A(2A )receptor knockout mice and A(3 )receptor knockout mice and their wild-type littermates. Following intraperitoneal injection of thioglycollate there was no significant difference in the number or type of leukocytes, tumor necrosis factor alpha (TNF-α) and IL-10 levels that accumulated in the thioglycollate-induced peritoneal exudates in adenosine A(2A )knockout mice or wild-type control mice. In contrast, there were more leukocytes, TNF-α and IL-10 in the exudates of the adenosine A(3 )receptor-deficient mice. Low-dose, weekly methotrexate treatment increased the adenosine concentration in the peritoneal exudates of all mice studied, and reduced the leukocyte accumulation in the wild-type mice and A(3 )receptor knockout mice but not in the A(2A )receptor knockout mice. Methotrexate reduced exudate levels of TNF-α in the wild-type mice and A(3 )receptor knockout mice but not the A(2A )receptor knockout mice. More strikingly, IL-10, a critical regulator of peritoneal inflammation, was increased in the methotrexate-treated wild-type mice and A(3 )knockout mice but decreased in the A(2A )knockout mice. Dexamethasone, an agent that suppresses inflammation by a different mechanism, was similarly effective in wild-type mice, A(2A )mice and A(3 )knockout mice. These findings provide further evidence that adenosine is a potent regulator of inflammation that mediates the anti-inflammatory effects of methotrexate. Moreover, these data provide strong evidence that the anti-inflammatory effects of methotrexate and adenosine are mediated by different receptors in different inflammatory loci, an observation that may explain why inflammatory diseases of some organs but not of other organs respond to methotrexate therapy

    Incidence and pattern of infections in pregnant women with bad obstetric history

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    Background: Adverse outcomes have been seen in pregnant women who had prior bad obstetric history along with infection with TORCH [toxoplasma, other infections (syphilis, varicella zoster, hepatitis B), rubella, cytomegalovirus, herpes simplex]complex and bacterial vaginosis. These infections are known to affect the health of the fetus. Objective was to study incidence and pattern of infections in pregnant women with bad obstetric history.Methods: A total of 190 patients with bad obstetric history fulfilling the methodology criteria were evaluated. Serological and molecular evaluations were carried out for TORCH complex and bacterial vaginosis was detected by both gram stain and gold standard clinical Amsel criteria and outcomes were followed.Results: Out of 190 pregnant women with bad obstetric history, a total of 36 (18.8%) were detected to have infections causing bad obstetric history. Toxoplasma was positive in 7 (20%) of the cases, 3 (51.92%) of them had abortions. Rubella in 12 (32%) of the cases, 7 (60%) cases had sensorineural deafness. Cytomegalovirus in 1 (2%) of the cases, 1 (100%) of the case had microcephaly. Herpes in 8 (22%) cases, 6 (71.1%) cases had abortions. Bacterial vaginosis in 8 (22%) of the cases, 4 (48.6%) cases had preterm delivery. The presence of infections with TORCH complex and bacterial vaginosis was related to adverse pregnancy outcomes.Conclusions: Women with bad obstetric history are prone to infections during pregnancy and have been found out to be associated with adverse pregnancy outcomes. Hence pregnant women should be screened so that early diagnosis and treatment of infections can be done to have better pregnancy outcomes
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