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    475 research outputs found

    Maize Response to Sole and Combined Effects of Nitrogen and Nematode Stresses

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    Crops grown on the field or in phytotrons are faced with different biotic stresses including plant-parasitic nematodes (PPNs) and abiotic stresses such as drought and poor soil fertility (low nitrogen levels). In this study, the interactive responses of a low-nitrogen tolerant variety LNTP-YC6 and a regular variety BR-9928-DMRSR to Pratylenchus zeae under four nitrogen-levels: no amendment; [T0], low nitrogen [100kgN/ha NPK; T1], optimum nitrogen [200kgN/ha NPK + Urea; T2] and compost [10t/ha; T3] were investigated. The treatments were arranged in a 2 x 4 factorial fitted into randomised complete block design (RCBD) with four replicates. Data were collected on growth parameters (plant height and stem girth), yield components (number and weight of cobs), lesion score (LS), final nematode population (FNP) and reproductive factor (RF). Low nutrient stress in combination with nematode infection generally reduced maize growth and yield. Growth parameters of BR-9928-DMRSR variety were generally high while yield parameters of LNTP-YC6 variety were significantly greater than in BR-9928-DMRSR variety. However, T2 and T3 improved growth and yield of both maize varieties compared to T0, with T2 being superior to T3. Meanwhile, T3 reduced FNP more than T2. FNP (107.65) and RF (1.3) of P. zeae on LNTP-YC6 variety and with T3 was significantly low compared to T2 (178, 3.34), T0 (188, 3.6) and T1 (217, 5.0). In all the parameters considered, LNTP-YC6 outperformed BR-9928-DMRSR variety. In conclusion, soil amendment with optimum rate of nitrogen and compost reduced nematode population and enhanced maize growth, while low nitrogen in combination with nematode stress reduced maize yield

    Monetary Policy Shocks and Manufacturing Output in Nigeria (1981-2018)

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    This study empirically investigates the impact of monetary policy shock on the manufacturing output in Nigeria using time series data covering the period between 1981 and 2018. Co-integration test was used to establish the long run relationship among the variables and Structural Vector Auto-Regressive model was employed to test for the shocks. It was found that shock to broad money supply would bring about positive and significant impact on the manufacturing output while the impact of shock to interest rate was found to be negative and insignificant. This study however concludes that shock to broad money is the main monetary policy instrument which can bring about positive change to manufacturing output in Nigeria. This paper then suggests that government and policy makers should primarily focus on this variable in their implementation of unanticipated monetary policy

    A SWOT Analysis of Nepalese Hydropower Policy

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    Hydropower, in which Nepal has comparative advantage, has a potential to contribute to Nepal’s energy security and sustainable development. The government of Nepal enacted the Hydropower Development Policy in 2001 (HDP-2001) as an overarching policy to coordinate all policies forthcoming in this sector. This paper has critically analysed HDP-2001 by applying the Ecosystem services-based Strength, Weakness, Opportunity, and Threat (SWOT) technique. The paper has evaluated peer-reviewed scholarly articles, secondary data, and government publications available in public domain. The strengths and weaknesses of the policy were analysed by applying seven specific indicators. The research indicates that HDP-2001 has been successful in overcoming some of the pertinent challenges in Nepalese hydroelectric industry, however it also faces several limitations on account of climate change, economic dislocations, effective monitoring, ensuring competitiveness, delivering fair price to the consumers, and institutional governance issues. Designing a practical mitigation plan, while being aware of its limitations, could be helpful in minimizing the impact of these exogenous factors

    Growing up in a Single Parent Family; A Determining factor of Adolescent’s Well-being

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    Family is the backbone of all children and children are supposed to grow in a family setting where both mother and father plays their respective roles in providing them a sense of security and stability but when it is done single handedly it becomes quite difficult to perform up to the expectations.  In recent years, there has been a sudden rise in the phenomenon of single parent families in India due to multiple factors including the influences from western society. The present article is an attempt to review the available literature on single parent families, their causal factors, strengths as well as its weaknesses. Furthermore, the positive and negative impact of single parenting on adolescent’s physical, psychological, emotional, behavioral, educational and social wellbeing is also discussed in detail. Besides, this paper suggests few strategies for single parents so that they can easily manage and cope up with the difficulties they face in such situations which might be helpful in improving the wellbeing of their adolescent children

    Investigation of Failure Criteria and Experimental Process of the Composite Specimen with Mechanical Joints under Tensile Loading

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    Generally, composite materials are used to obtain better engineering properties, including higher hardness, greater strength, lower weight, heat resistance, moisture and corrosion, which are not present in homogeneous materials such as metals, which are more commonly used in composite design. In this article, experimental study of the composite specimen with mechanical joints under tensile loading, joints of composite material structures, failure criteria in composite materials, tensile impact test is investigated. The results of research work it shows that maximum strength, the hand lay-up can be designed with [0º, 45º, 90º, -45º] s and layers with 45º fibers is very important, because these fibers in these layers have a significant role in increasing the resistance of the piecework under shear stresses due to the passage of stress lines along the hole; In other words, the maximum cut occurs at a 45º angle, and these layers resist this shear stress

    Power Performance Analysis of PV Module with DC to DC Buck Converter

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    The power performance of PV module with dc-dc buck converter for photovoltaic energy application has been analyzed in this paper. Since the solar module produces DC voltage at various levels depending on irradiance variation, it is needed to connect a DC-DC converter to adjust the level of DC voltage at a certain level. The power output has been investigated by MATLAB simulation. To improve the output power Proportional Integral Derivative (PID) control is used. From the simulation it has been observed that around 13.85 Watts more output power can be extracted if PID control is used

    Gender Effect on Some Blood Parameters in Patients Undergoing Haemodialysis in North Western Algeria

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    Replacement therapy for chronic kidney disease using haemodialysis involves the elimination of excessive toxic fluids and toxic metabolic end products from the body. Worldwide, gender significant differences exist with regard to the epidemiological aspect, evolution and blood parameters of chronic renal failure disease. In the present retrospective study, 289 medical files of adult patients (154 men and 135 women) aged 20 to 78 years were investigated to understand the relationship between gender difference and blood parameters in patients with chronic renal failure undergoing haemodialysis in north western Algeria. Our results revealed significant higher levels of haemoglobin (p=0.003), haematocrit (p=0.005), creatinine (p<0.001) and uric acid (p=0.037) in men comparing to women. However, women serum samples were characterized by higher significant level of platelets (p=0.002). No significant differences (p˃0.005) were observed between the two genders regarding the other parameters of blood count formula, liver function parameters, urea, mineral status (calcemia and phosphoremia), basic biochemical levels (glycaemia and lipids), C-reactive protein (CRP) and parathyroid hormone (PTH). In dialysis patients, and despite the fact that some serum parameters vary significantly, the majority of the parameters recorded were often high in the males compared to the female gender. This finding may be due to the existence of specific confounding prognostic factors for each sex, which may or may not compensate for each other, therefore, ultimately, leading to overall non-significance

    The Role of African Court on Human and Peoples’ Right for Human Rights Protection: The Case of Libyan Crises

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    The emergence of regional human rights systems depicts one of the greatest achievements in the internationalization of human rights. The foundation of the charter paved the way for the birth of the court thereafter. The African Court is established by virtue of the 1998 protocol to the Charter and the court is built upon an arsenal of protective and remedial techniques. The establishment of the court has reset the stage and created a new platform for the protection of human rights in Africa. The cardinal objective of the paper is to investigate the role of African Court on human and Peoples’ rights protection in Libya Crises taking the case of Saif Al Islam Gaddafi. The paper has utilized qualitative methodology. The government of Libya responded with brutal force against civilian protesters in contravention of international human rights and humanitarian law. The security force of the government of Libya killed many protesters as well. This situation intensified human rights violations and enforced many of the peoples to displace. The court issued an important ruling in March 2011, ordering provisional measures against Libya in the armed conflict in its territory. Libyan government denied the claims of human rights violations in its territory and showed its willingness to subject itself to criminal investigations by the Court if necessary. The issue of the fund, independence, commitment and competence of judges to interpret mandate and jurisdiction, the willingness of the states to support and to abide by court decisions, and powers of the concerned body to enforce court decisions hampered the court from being effective. Generally, unless African States act in good faith with respect to the decisions of the African Human Rights Court, the court becomes no more significant

    COVID-19 Social Work Scope and Intervention in A Tertiary Care Hospital

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    The novel coronavirus has hit the routine life of the people crossing countries and not spared anyone in existence. In terms of screening and treatment of the infected a multidisciplinary team in full force is working around the world. Social Work, a profession that has an understanding of the psychosocial intricacies of people is also at the frontline. In this article, the author who himself a Medical Social Worker attempts to elicit the scope and possible interventions for the COVID-19 victim

    Mathematical Analysis of the Role of Detection Rate on Dynamical Spread of Ebola Virus Disease

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    In this paper, a non-linear mathematical model of the Ebola virus disease with detection rate is proposed and analyzed. The whole population under consideration is divided into five compartments e.g. susceptible, latently infected, infected undetected, infected detected, and recovered to study the transmission dynamics of the Ebola virus disease. Based on the immunity level, susceptible individuals move to exposed class or directly to infected detected class once they come into contact with an infective. This has been incorporated through the progression rate which is slow. The equilibria of the model and the basic reproduction number R0 are computed. It is observed that the disease-free equilibrium of the model is locally asymptotically stable when R0<1. The model exhibits forward bifurcation under certain restrictions on parameters, which indicate that the model has a single endemic equilibrium for R0<1. This suggests that an accurate estimation of parameters and the level of control measures are required to reduce the infection prevalence of the Ebola virus in the endemic region and just R0<1 is enough to eliminate the disease from the population. R0 needs to be lowered much below one to confirm the global stability of the disease-free equilibrium. Numerical simulation is performed to demonstrate the analytical results. It is found that the increase in the rate of detection rate leads to a decrease in the threshold value of R0. Numerical simulations have been carried out to support the analytic results

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