186 research outputs found

    Two Dimensional Kinematic Analysis of Set position to First Step with Sprinting Performance of University Athletes

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    The purpose of the study was to assess the effect of kinematical selected parameters of set position to first step with sprinting performance of University athletes. Six (3 Intervarsity and 3 Intercollegiate level) athletes of Lakshmibai National Institute of Physical Education, NERC, Guwahati has been selected for this study. The mean and standard deviation (SD) of sprinters were age (20.64, 1.64), height (1.73.13 cm, 5.84), weight (61.14 kg, 3.44), arm length (62.00 cm, 3.72) and leg length (93.33 cm, 2.71). For acquiring two-dimensional kinematical data, each subject was asked to warm-up for at least 15 minutes by stretching all major muscle groups for better performing the first step during block start. Biokin-2D motion analysis system V4.5 can be used for kinematical analysis of Set position to First Step on Block Start Sprinting Performance. A standard motion driven camera i.e. handy camera of Sony Company, which frequency of the camera was 50 frame/ second. Even though this camera register photograph, at the moments from set position to first step was selected for the purpose of analysis. The photographic sequence was taken under controlled condition. The distance of the camera from the subjects was 10 mts away and was fixed at one-meter height. The alpha level of significance was set at p<0.05 for all statistical tests. The result was found that Intervarsity and Intercollege athletes in there, Trajectory Knee, Trajectory Ankle, Displacement Knee, Displacement Ankle, Linear Velocity Knee, Linear Velocity Ankle and Linear Acceleration Ankle whereas insignificant difference was found between Intervarsity and Intercollege in their Linear Acceleration Knee joint of set position to first step with sprinting performance. Keywords: 2D Kinematic Analysis, Set Position to First Step, Sprinting Performanc

    Effect of Mobile Phone Usage on Students during the Pandemics Covid-19

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    Our aim was to know the effect of mobile phone during lockdown among students A total number of 108 students completed the questionnaire The questions were asked related to mobile phone usage Students of secondary Higher secondary and higher education were the sample of the study Online survey was conducted finding of the study showed that all students in the study were using mobile phone majority of students were using their mobile phone more than before the lockdown During the pandemic they are spending more time on their mobile phone for different purposes like studies entertainment for gaming etc Result of the study also revealed that students are facing problem like eye irritation neck pain et

    Role of Manas Bhavas in Grahani Roga (Irritable Bowel Syndrome)

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    Grahani Roga is the prime disease of gastro-intestinal tract and seen often in day-today practice. In our classics Grahani is described as an Agni Adhishthana. Any disturbance in the status of Agni leads to Grahani Roga. The rapid increase in the prevalence of Grahani is a matter of great concern now days. It is a result of sedentary life style, bad dietary habits, stress and also due to the altered environmental conditions. Ayurveda described the individuality of Mana and Shareera and their inseparable and interdependent relation in the body. Grahani Roga is a predominant Pitta-Vata Dosha and the Manasika Bhavas can be easily be disturbed by Vata and Pitta Dosha. IBS can be considered as Agnimandyajanya Vikara. The functional dependency between normal Vata Dosha and Agni is altered in IBS. The role of Dhatus and concerned Srotas i.e., Purishavaha Srotas is also considerable. Purishavaha Srotas does majority of function with the help of Apana Vayu. So, the Dusti lies at Apana Vayu & Samana Vayu level. The Mansik Bhavas which hamper Agni and Rasavahasrotas, are the main causative factor of IBS

    To analyze the causality between finance and economic growth? the case of India

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    Thesis(Master) --KDI School:Master of Public Policy,2013masterpublishedSajwan, Surender Singh

    Comparative Analysis of ResNet and DenseNet for Differential Cryptanalysis of SPECK 32/64 Lightweight Block Cipher

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    This research paper explores the vulnerabilities of the lightweight block cipher SPECK 32/64 through the application of differential analysis and deep learning techniques. The primary objectives of the study are to investigate the cipher’s weaknesses and to compare the effectiveness of ResNet as used by Aron Gohr at Crypto2019 and DenseNet . The methodology involves conducting an analysis of differential characteristics to identify potential weaknesses in the cipher’s structure. Experimental results and analysis demonstrate the efficacy of both approaches in compromising the security of SPECK 32/64

    Measurement of isotopically-exchangeable Zn in Zn-deficient paddy soil

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    The changes in soil chemistry following submergence of a soil for rice production result in zinc (Zn) being immobilized in very insoluble forms. Consequently, Zn deficiency is widespread in rice crops and in human populations that subsist on rice. We explored the use of stable isotopic dilution assays for assessing Zn dynamics in submerged paddy soil with two types of strongly Zn-deficient soil for rice cultivation in the Philippines. We optimized the isotope enrichment, electrolyte and equilibration time to measure isotopically-exchangeable Zn (E-values) without changing redox conditions. Available Zn was rapidly and strongly immobilized following submergence, which was controlled by CO2 accumulation. Addition of the isotopic tracer before submergence produced unreliable E-values because irreversible immobilization of the tracer progressed faster than isotopic exchange. Addition of the tracer to already reduced soil produced stable E-values for tracer–soil contact of up to 1 week. Longer periods produced unreliable E-values because of continuing irreversible fixation of the tracer. We discuss the implications for applications of isotopic dilution methods to measure trace-element dynamics in submerged soil

    Using isotope dilution assays to understand speciation changes in Cd, Zn, Pb and Fe in a soil model system under simulated flooding conditions

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    Flooded soils are systems with complex chemistry and understanding the mechanisms that control the mobility and bioavailability of metals in these soils is important for their management. This work uses stable metal multi-element isotopic dilution combined with sequential extraction assays to help understand the changes in solid and solution speciation of Cd, Fe, Pb and Zn in a contaminated soil following submergence. However, it is necessary to ensure that the isotopic dilution principles, originally developed for aerobic soils, are not compromised; in particular due to the presence of non-labile colloids in the solution phase. In particular, no studies examining the validity of these assays in systems where rapid pH and Eh changes are occurring due to fermentation reactions have been published. Thus sucrose (0.42% and 1.26% added C) was used as a carbon source to stimulate bacterial mediated fermentation reactions allowing changes in Cd, Zn, Fe and Pb isotopic exchangeability, speciation and solution chemistry to be examined after 10, 20 and 42 days of submergence. Without the addition of added C, submergence for 42 days only produced minor changes in the speciation of the metals in solid or solution phases. However, the presence of easily labile carbon produced significant responses depending on the quantity of C added. Assessments of whether fermentation products caused over-estimation of the isotopically exchangeable pool of metals (E-values) were made by measuring concentrations with and without a resin purification step. Results showed generally good agreement over a pH range of 4–7 for Pb, Cd, Zn and Fe and demonstrate that fermentation by-products do not induce the formation of non-exchangeable metal colloids. E-value concentrations were compared with fractions extracted using a modified Tessier sequential extraction. With no carbonate phases present in the soils, the E-values for Cd, Zn, Fe and Pb compared favourably with the concentrations of metal present in the combined solution, exchangeable and specifically adsorbed fractions. This provided additional evidence that the conditions for the isotopic dilution assays were not violated as these fractions should be isotopically exchangeable. Combining results from the different treatments and stages of the reduction process, strong pH dependence was found for the isotopically exchangeable and the solution pools of Cd, Zn and Pb

    Opportunities and challenges in the use of coal fly ash for soil improvements – a review

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    Coal fly ash (CFA), a by-product of coal combustion has been regarded as a problematic solid waste, mainly due to its potentially toxic trace elements, PTEs (e.g. Cd, Cr, Ni, Pb) and organic compounds (e.g. PCBs, PAHs) content. However, CFA is a useful source of essential plant nutrients (e.g. Ca, Mg, K, P, S, B, Fe, Cu and Zn). Uncontrolled land disposal of CFA is likely to cause undesirable changes in soil conditions, including contamination with PTEs, PAHs and PCBs. Prudent CFA land application offers considerable opportunities, particularly for nutrient supplementation, pH correction and ameliorating soil physical conditions (soil compaction, water retention and drainage). Since CFA contains little or no N and organic carbon, and CFA-borne P is not readily plant available, a mixture of CFA and manure or sewage sludge (SS) is better suited than CFA alone. Additionally, land application of such a mixture can mitigate the mobility of SS-borne PTEs, which is known to increase following cessation of SS application. Research analysis further shows that application of alkaline CFA with or without other amendments can help remediate at least marginally metal contaminated soils by immobilisation of mobile metal forms. CFA land application with SS or other source of organic carbon, N and P can help effectively reclaim/restore mining-affected lands. Given the variability in the nature and composition of CFA (pH, macro- and micro-nutrients) and that of soil (pH, texture and fertility), the choice of CFA (acidic or alkaline and its application rate) needs to consider the properties and problems of the soil. CFA can also be used as a low cost sorbent for the removal of organic and inorganic contaminants from wastewater streams; the disposal of spent CFA however can pose further challenges. Problems in CFA use as a soil amendment occur when it results in undesirable change in soil pH, imbalance in nutrient supply, boron toxicity in plants, excess supply of sulphate and PTEs. These problems, however, are usually associated with excess or inappropriate CFA applications. The levels of PAHs and PCBs in CFA are generally low; their effects on soil biota, uptake by plants and soil persistence, however, need to be assessed. In spite of this, co-application of CFA with manure or SS to land enhances its effectiveness in soil improvements
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