814 research outputs found

    Suicide by unusual methods: a rare case of complex suicide

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    Genital Self-Mutilation (GSM) is usually associated with mental illness. It is considered as the most brutal form of self-harm. Many cases of such self-harm have been described by various authors in different times. However, its existence in absence of any mental illness and using it as a method of suicide is a matter of question. Although, some cases are reported; its incidence is very low. Its association with complex suicide is even much lower. Usually, in complex suicide, the victim chooses some methods which are less painful. Such a complicated case of complex suicide was brought to the tertiary care center of Dibrugarh, Assam for post mortem examination. The deceased, a 36 years old male was brought with history of cutting his external genitalia followed by hanging. The case has been described in this paper with relevant review literature.

    Moisture management finish on woven fabrics

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    486-491Moisture management behaviour of four different woven fabrics, such as cotton, polyester/cotton blend, microdenier polyester and nylon, has been studied. A wetting agent of ethoxylated alcohol blend and moisture management finishing agents, such as amino silicone polyether copolymer and hydrophilic polymer, have been prepared and used. Moisture management finishes with wetting agent and without wetting agent are imparted onto woven fabrics. The effect of moisture management finishing process parameters on the comfort properties of woven fabrics has been studied. The optimization of comfort level by varying the moisture management finishing process parameters in order to achieve suitability for making sports wear is done. It is found that the type of fibre and linear density of yarn affect the comfort properties of woven fabrics which include wicking, wetting, water absorbency and moisture vapour transmission characteristics. Based on the test results, microdenier polyester fabrics and cotton fabrics exhibit good wicking, wetting and water absorbency characteristics than the polyester/cotton blend and nylon. It is found that the combination of ethoxylated alcohol (wetting agent) and the recipe containing amino silicone polyether copolymer and hydrophilic polymer in the ratio of 1:2 with pH of 5.5 at 600-700 C temperature is the optimum finishing process than the other two combinations so as to attain better comfort properties for sportswear

    Moisture management finish on woven fabrics

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    Moisture management behaviour of four different woven fabrics, such as cotton, polyester/cotton blend, microdenierpolyester and nylon, has been studied. A wetting agent of ethoxylated alcohol blend and moisture management finishingagents, such as amino silicone polyether copolymer and hydrophilic polymer, have been prepared and used. Moisturemanagement finishes with wetting agent and without wetting agent are imparted onto woven fabrics. The effect of moisturemanagement finishing process parameters on the comfort properties of woven fabrics has been studied. The optimization ofcomfort level by varying the moisture management finishing process parameters in order to achieve suitability for makingsports wear is done. It is found that the type of fibre and linear density of yarn affect the comfort properties of woven fabricswhich include wicking, wetting, water absorbency and moisture vapour transmission characteristics. Based on the testresults, microdenier polyester fabrics and cotton fabrics exhibit good wicking, wetting and water absorbency characteristicsthan the polyester/cotton blend and nylon. It is found that the combination of ethoxylated alcohol (wetting agent) and therecipe containing amino silicone polyether copolymer and hydrophilic polymer in the ratio of 1:2 with pH of 5.5 at 600-700 Ctemperature is the optimum finishing process than the other two combinations so as to attain better comfort propertiesfor sportswear

    Biorational strategies for the management of insect pests of spice crops

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    Pest control strategies based on relatively non-toxic procedures that preserve the health of the ecosystem and minimizes negative effects on beneficial organisms, and utilize microbial pathogens and their products, plant natural products, semiochemicals, biotechnological strategies and reduced-risk pesticides can be termed as ‘biorational strategies’. This review consolidates the information available on the use of biorational strategies for the management of insect pests of spice crops such as Piper nigrum (black pepper), Elettaria cardamomum (cardamom), Zingiber officinale (ginger), Curcuma longa (turmeric), Coriandrum sativum (coriander), Cuminum cyminum (cumin) and Foeniculum vulgare (fennel). The review also identifies the current gaps in knowledge and the opportunities and challenges in using biorational strategies for the production of clean spices, reflecting the global concern over pesticide misuse

    Painlev{\'e} singularity structure analysis of three component Gross-Pitaevskii type equations

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    In this paper, we have studied the integrability nature of a system of three coupled Gross-Pitaevskii type nonlinear evolution equations arising in the context of spinor Bose-Einstein condensates by applying the Painlev\'e singularity structure analysis. We show that only for two sets of parametric choices, corresponding to the known integrable cases, the system passes the Painlev\'e test.Comment: 17 pages. Accepted in Journal of Mathematical Physic

    Susceptibility baselines for the invasive mealybugs Phenacoccus manihoti and Paracoccus marginatus (Hemiptera: Pseudococcidae) in cassava ecosystem against selected neonicotinoid insecticides

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    In recent years, an invasive cassava mealybug Phenacoccus manihoti has been threatening cassava cultivation alongside another invasive papaya mealybug Paracoccus marginatus which invaded the country more than a decade ago. In order to evaluate their responses against the commonly used neonicotinoid insecticides: thiamethoxam 25 WG and imidacloprid 17.8 SL,  acute toxicity experiments to determine the susceptibility baselines in populations of two invasive mealybugs in the cassava agro-ecosystem, namely, cassava mealybug P. manihoti and papaya mealybug P. marginatus were performed upto 15 generations. A systemic uptake method was used for the bioassay. The LC50 values of thiamethoxam for F1 generation were 3.298 ppm whereas it was 1.066 ppm for F15 in cassava mealybug. The LC50 values of F1 generation were 2.014 ppm and that of F15 generation was 1.384 ppm when tested with imidacloprid. In the case of papaya mealybug, the LC50 values ranged from 6.138 ppm (F1) to 2.503 ppm (F15) for thiamethoxam and 7.457 ppm (F1) to 3.231 ppm (F15) for imidacloprid. All the susceptibility indices calculated were less than threefold. The rate of resistance development was negative in all cases showing that none of the tested populations harboured any resistance without insecticidal selection pressure. Tentative discriminating doses were fixed for both chemicals with the help of LC95 values obtained from the bioassay experiments, namely five ppm for both thiamethoxam and imidacloprid in the case of cassava mealybug and 10 ppm and 15 ppm, respectively, for thiamethoxam and imidacloprid in the case of papaya mealybug.          

    Numerical analysis of C.I engine to control emissions using exhaust gas recirculation and advanced start of injection

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    AbstractAs major limitation of diesel engines is the high soot and nitrogen oxide emissions which cannot be reduced totally with only conventional catalytic converters today, varying fuel characteristics became a focus of interest to meet the pollution emission legislations as they require very few or no changes in existing engine model. The present work deals with, numerical analysis of combined effect of Advanced Start of Injection (SOI) and Exhaust Gas Re-circulation (EGR) on performance and emissions which were studied, by performing numerical analysis on a Caterpillar 3401 single cylinder C.I engine model at constant speed using diesel as fuel via three dimensional computational fluid dynamics (CFD) procedures and validated with experimental data. The SOI is advanced from 11° Crank angle bTDC to 14.5° Crank angle bTDC and EGR as a fraction is increased from 0% to 10%. The modified conditions of these parameters resulted in simultaneous reduction of NOx and Soot

    Highly c-axis oriented growth of GaN film on sapphire (0001) by laser molecular beam epitaxy using HVPE grown GaN bulk target

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    Growth temperature dependant surface morphology and crystalline properties of the epitaxial GaN layers grown on pre-nitridated sapphire (0001) substrates by laser molecular beam epitaxy (LMBE) were investigated in the range of 500-750 degrees C. The grown GaN films were characterized using high resolution x-ray diffraction, atomic force microscopy (AFM), micro-Raman spectroscopy, and secondary ion mass spectroscopy (SIMS). The x-ray rocking curve full width at a half maximum (FWHM) value for (0002) reflection dramatically decreased from 1582 arc sec to 153 arc sec when the growth temperature was increased from 500 degrees C to 600 degrees C and the value further decreased with increase of growth temperature up to 720 degrees C. A highly c-axis oriented GaN epitaxial film was obtained at 720 degrees C with a (0002) plane rocking curve FWHM value as low as 102 arc sec. From AFM studies, it is observed that the GaN grain size also increased with increasing growth temperature and flat, large lateral grains of size 200-300 nm was obtained for the film grown at 720 degrees C. The micro-Raman spectroscopy studies also exhibited the high-quality wurtzite nature of GaN film grown on sapphire at 720 degrees C. The SIMS measurements revealed a non-traceable amount of background oxygen impurity in the grown GaN films. The results show that the growth temperature strongly influences the surface morphology and crystalline quality of the epitaxial GaN films on sapphire grown by LMBE
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