337 research outputs found

    Amelioration of Purple Blotch Disease in Onion (Allium cepa L.) Seedlings with Organic Soil Amendments

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    Pot experiments with transplanted onion seedlings were evaluated for management of purple blotch disease. Sets of 100,150 and 200g of poultry droppings, cattle dung, neem leaves, rice husk and a mixture of rice husk and poultry droppings (1:1) were incorporated per kilogram of soil. Spore suspension of Alternaria porri (5x105) was also applied to the rhizosphere of the onion seedlings. Common symptoms of purple blotch (elliptical purple lesions, wilting and defoliation) were assessed. Poultry dropping amendment was most effective; reducing lesions to 15± 3.6% from 85± 2.6%, wilting reduced to 20± 4.0% from 70± 3.0% and defoliation to zero from 60± 3.5%. The amendments, especially at the concentration of 150 and 200g/kg soil reduced symptoms severity compared to control. Onion farming should be complemented with application of degradable organic materials, especally poultry droppings and cattle dung, to reduce the incidence and severity of purple blotch disease

    Prey – predator model on the interaction between the drawdown level of an aquifer and maize yield

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    Groundwater is a major source of water for irrigation purposes and for sustainable growth of Agricultural development. In this paper we formulated a mathematical model to analyse the interaction between the Draw-down levels in an unconfined aquifer with maize yield, using the parameters; aquifer recharged rate α, rate of interaction between the draw down level of the aquifer and the maize yield β, draw down level of the aquifer h, and the maize yield y. The aim of this paper is to analyse the interaction between crop yield and water table and to determine the effect of draw down level on maize yield. It was observed that the maize yield depends on the recharge rate of the aquifer α and the water table level h and also as the drawdown level increases, the maize yield increases. Agriculture is of paramount importance to the development of any country, it was established in this paper that a relatively small increase of water table depth beyond the optimum increase the surface irrigation requirement for maximum crop production, water table depth shallower than optimum decreases yield.Key words: Drawdown, recharged rate, maize yield, interactio

    Optimal Control of Beer Fermentation Process Using Differential Transform Method

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    In this paper, the mathematical model of batch fermentation process of ethanol was formulated. The method of differential transform was used to obtain the solution governing the fermentation process; the system of equation was transformed using the differential transform method. The result obtained from the model was observed to show that temperature plays an important role in the fermentation of ethanol, with an increase in temperature the production of ethanol tends to decreases while with a low temperature the production of ethanol increases. Keyword: Optimal Ethanol, Fermentation, Substrate, Diacetyl, Inoculu

    Psoriatic Diaper Rash in a 6 Month Old West African Infant

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    Abstract Observation: Psoriasis is a chronic inflammatory papulosquamous disorder which typically follows a relapsing and remitting course. The condition is rare among West Africans compared with other Africans and the world. Although psoriasis is most frequently diagnosed between the ages of 15 and 25, it can appear at any time and, can affect children of all ages, including infants. The clinical manifestations of psoriasis in a child are generally similar to those in an adult. Here we report a case of a 6 month West African child with plaque type psoriasis with lesions predominantly in the diaper area

    Severe ectoparasitism and parasitic gastroenteritis in a two month old Sokoto red kid: A case report

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    A two month old red Sokoto kid that weighed 3kg from Usmanu Danfodiyo University Farm, Dabagi, was presented to the Veterinary Teaching Hospital, Usmanu Danfodiyo University, Sokoto, with the complaints of debility and recumbency. Physical examination revealed severe infestation with ticks of both sexes identified as Hyalomma dromedarii, Hyalomma rufipes, Amblyomma variegatum and the louse Linognathus stenopsis. Examination of the blood suggested anaemia and revealed mild infection with Anaplasma ovis. After management for a day, the animal died. At post-mortem, Haemonchus spp. and Oesophagostomum spp. were found infesting the abomasum and caecum respectively. This paper discusses the implication of the condition to the animal production and how best to control it in established farms like the University farm

    A comprehensive analysis of improving the QoS of IMM traffic for high speed wireless campus network

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    Interactive Multimedia (IMM) applications such as voice and video conferencing are very important in our learning environment. They offer useful services that benefit its users but these services suffers performance degradation from today’s high speed Wireless Local Area Network (WLAN). However, guaranteed Quality of Service (QoS) remains the bottleneck in the network which becomes a great challenge in attempting to improve its performance. This work reviewed many approaches and considers mapping QoS class parameters such as Quality of Service Class Identifier (QCI), Maximum Bit Rate (MBR) and Allocation and Retention Priority (ARP) to the upstream and downstream data flowing in the network as an attempt to improve its performance. Priority is then given to the QoS bearer packets by associating Differentiated Services Code Point (DSCP). A comprehensive analysis of QoS in different protocols in wireless networks has been studied. Open issues and research directions have been addressed with a proposed mechanism to enhance the QoS of the wireless networ

    Achieving In Vivo Target Depletion through the Discovery and Optimization of Benzimidazolone BCL6 Degraders.

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    Deregulation of the transcriptional repressor BCL6 enables tumorigenesis of germinal center B-cells, and hence BCL6 has been proposed as a therapeutic target for the treatment of diffuse large B-cell lymphoma (DLBCL). Herein we report the discovery of a series of benzimidazolone inhibitors of the protein-protein interaction between BCL6 and its co-repressors. A subset of these inhibitors were found to cause rapid degradation of BCL6, and optimization of pharmacokinetic properties led to the discovery of 5-((5-chloro-2-((3R,5S)-4,4-difluoro-3,5-dimethylpiperidin-1-yl)pyrimidin-4-yl)amino)-3-(3-hydroxy-3-methylbutyl)-1-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (CCT369260), which reduces BCL6 levels in a lymphoma xenograft mouse model following oral dosing

    A quick guide for building a successful bioinformatics community

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    “Scientific community” refers to a group of people collaborating together on scientific-research-related activities who also share common goals, interests, and values. Such communities play a key role in many bioinformatics activities. Communities may be linked to a specific location or institute, or involve people working at many different institutions and locations. Education and training is typically an important component of these communities, providing a valuable context in which to develop skills and expertise, while also strengthening links and relationships within the community. Scientific communities facilitate: (i) the exchange and development of ideas and expertise; (ii) career development; (iii) coordinated funding activities; (iv) interactions and engagement with professionals from other fields; and (v) other activities beneficial to individual participants, communities, and the scientific field as a whole. It is thus beneficial at many different levels to understand the general features of successful, high-impact bioinformatics communities; how individual participants can contribute to the success of these communities; and the role of education and training within these communities. We present here a quick guide to building and maintaining a successful, high-impact bioinformatics community, along with an overview of the general benefits of participating in such communities. This article grew out of contributions made by organizers, presenters, panelists, and other participants of the ISMB/ECCB 2013 workshop “The ‘How To Guide’ for Establishing a Successful Bioinformatics Network” at the 21st Annual International Conference on Intelligent Systems for Molecular Biology (ISMB) and the 12th European Conference on Computational Biology (ECCB)

    Palm Oil Clinker as a Waste by-Product: Utilization and Circular Economy Potential

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    Conservation of natural resources to create ecological balance could be significantly improved by substituting them with waste by-products. Palm oil industry operations increases annually, thereby generating huge quantity of waste to be dumped into the landfill. Palm oil clinker (POC) is a solid waste by-product produced in one of the oil palm processing phases. This chapter is designed to highlight the generation, disposal problems, properties and composition of POC. The waste to resource potentials of POC would be greatly discussed in the chapter starting with the application of POC in conventional and geopolymer structural elements such as beams, slabs, columns made of either concrete, mortar or paste for coarse aggregates, sand and cement replacement. Aspects such as performance of POC in wastewater treatment processes, fine aggregate and cement replacement in asphaltic and bituminous mixtures during highway construction, a bio-filler in coatings for steel manufacturing processes and a catalyst during energy generation would also be discussed. Circular economy potentials, risk assessment and leaching behavior during POC utilization would be evaluated. The chapter also discusses the effectiveness of POC in soil stabilization and the effect of POC pretreatment for performance enhancement. Towards an efficient utilization, it is important to carry out technical and economic studies, as well as life cycle assessments, in order to compare all the POC areas of application described in the present review article. POC powder has proven to be pozzolanic with maximum values of 17, 53.7, 0.92, 3.87, 1.46, for CaO, SiO2, SO3, Fe2O3 and Al2O3. Therefore, the present chapter would inspire researchers to find research gaps that will aid the sustainable use of agroindustry wastes. The fundamental knowledge contained in the chapter could also serve as a wake-up call for researchers that will motivate them to explore the high potential of utilizing POC for greater environmental benefits associated with less cost when compared with conventional materials

    Search for pair-produced long-lived neutral particles decaying to jets in the ATLAS hadronic calorimeter in ppcollisions at √s=8TeV

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    The ATLAS detector at the Large Hadron Collider at CERN is used to search for the decay of a scalar boson to a pair of long-lived particles, neutral under the Standard Model gauge group, in 20.3fb−1of data collected in proton–proton collisions at √s=8TeV. This search is sensitive to long-lived particles that decay to Standard Model particles producing jets at the outer edge of the ATLAS electromagnetic calorimeter or inside the hadronic calorimeter. No significant excess of events is observed. Limits are reported on the product of the scalar boson production cross section times branching ratio into long-lived neutral particles as a function of the proper lifetime of the particles. Limits are reported for boson masses from 100 GeVto 900 GeV, and a long-lived neutral particle mass from 10 GeVto 150 GeV
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