Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 43 for “"CPF"”.
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Antibacterial activity and mode of action of the antimicrobial peptide CPF-MW1 against Escherichia coli ATCC 700928
… the slow rate of resistance emergence. The AMP, CPF-MW1, was derived from the skin secretions of Xenopus muelleri, a West African clawed frog species, and was identified as a promising AMP worthy of further development. The aim of the present study was to further evaluate the antibacterial …
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Neurochemical Effects of Concurrent Exposure to Repeated Stress and Chlorpyrifos on the Central Nervous System
… exposure to repeated stress and chlorpyrifos (CPF) on concentrations of excitatory amino acids, activities of cholinergic enzymes, and maximum binding density (Bmax) and equilibrium dissociation rate constant (Kd) of NMDA and total muscarinic receptors were studied in Long-Evans rats. The study …
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Architecture of eukaryotic mRNA 3' end processing machinery and insights into the mechanism of polyadenylation
… known as cleavage and polyadenylation factor (CPF). CPF, along with accessory cleavage factors (CF) IA and IB, cleaves the pre-mRNA within the 3' untranslated region (UTR) and adds a poly(A) tail. Previous work has shown that CPF is a fourteen-subunit complex that is organised into three …
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3D Analysis of Fe-Ti Oxides and How They Affect Crystal-Plastic Deformation in Atlantis Bank, Southwest Indian Ridge
… a generally positive relationship between depth, CPF intensity, and Fe-Ti oxide percent. The CPF intensity and Fe-Ti oxide abundance was greater at shallower depths in all holes. The Fe-Ti oxide abundance and CPF intensity had a positive correlation through a CPF intensity of 3, but then seemed to …
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An experimental and analytical exploration of the effects of manufacturing parameters on ceramic pot filter performance
Ceramic pot filters (CPF) are a promising low-cost option for household water treatment, providing a barrier of protection against-microbiological contaminants for households with or without reliable piped water supplies. The goal of this thesis is to provide CPF manufacturers with tools to …
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Selective ethylene dimerization by a nickel-exchanged metal-organic framework catalyst
… selectivity. The metal-organic framework (MOF) CPF-5 Mn₅(TBA)₃(HCOO)₃(OH)(H₂O₂)2]]₄·6DMF where TBA = 4-(l H-tetrazol-5-yl)benzoic acid provides an ideal structural template for the development of a heterogeneous catalyst for ethylene dimerization. Ni exchanged CPF-5 (Ni-CPF-5) treated with …
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Lifetime and effectiveness evaluation of ceramic pot filters
… in developing countries. Ceramic pot filters (CPFs) represent an effective and sustainable technology for poor communities, but the characterization of CPF lifetimes is on-going, and the water production seems to be the limiting factor. This dissertation describes laboratory and field …
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Mechanistic insights into endoribonuclease activation of the mRNA 3' end processing machinery by Cleavage Factor IA
… kDa called Cleavage and Polyadenylation Factor (CPF). CPF contains three enzymatic activities that each form the core of one of three interconnected modules: the cleavage module, the polymerase module and the phosphatase module. The endoribonuclease within CPF is held in an inactive form and must …
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Localizing external contact using proprioceptive sensors : the contact particle filter
… external contacts. This paper introduces the CPF, the Contact Particle Filter, which is a general algorithm for detecting and localizing external contacts on rigid body robots without the need for external sensing. The CPF finds external contact points that best explain the observed external …
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Enhancing the Impact of Investments in 'Educational' ICT
… new framework, the Computer Practice Framework (CPF), was then devised, based on key dimensions evident within the first three case studies. The CPF was evaluated against the criteria through further fieldwork in schools and higher education. This led to the refinement of the CPF and indicated …
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Hemispheric ceramic pot filter evaluation and quality assurance program in Northern Ghana
… sale, and distribution of ceramic pot filters (CPF) and other water, sanitation and hygiene innovations. This thesis documents the improvement of the performance of PHW's CPF in three areas; flow rate, bacteria removal, and strength. This thesis also documents the improvement of the PHW filter …
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A two step predictor-corrector method for voltage collapse point estimation
… point estimation is the Continuation Power Flow (CPF). CPF is considered accurate but, it is very computationally expensive for large systems. This work aims to speed up the predictor-corrector process by using a VSI called P-index. An initial prediction is made, corrected using a continuation …
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Chlorpyrifos and chlorpyrifos oxon induce neurite retraction and cytoskeletal disruption in mouse N2a cells and human neural progenitor stem cells
… the organophosphorous insecticide chlorpyrifos (CPF) over recent decades has posed major concerns about its toxicity in humans. Sub-cytotoxic concentrations of CPF and its metabolite CPF-oxon (CPO) were known to inhibit neurite outgrowth in differentiating neural cells but little was known about …
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Effects of organophosphates on neural and purified liver tissue transglutaminase
… shown that the organophosphates chlorpyrifos (CPF) and chlorpyrifos oxon (CPFO), which cause developmental neurotoxicity, provoke several changes in differentiating rat C6 glioma cells at different levels. The aims of this thesis were to analyse the effects of CPF and CPFO on the TGases present …
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Joint routing protocol and image compression algorithm for prolonging node lifetime in wireless sensor network
… at all network nodes. The consume power fairly (CPF) protocol achieves a high power efficiency by distributing power consumption equal on all the network nodes. The protocol compares the power available on all the paths from source to sink and then selects the path with highest power. …
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The Impact of Fe-Ti Oxide Concentration on the Structural Ridgity of the Lower Oceanic Crust, Atlantis Bank, Southwest Indian Ridge
… does correlate with crystal-plastic foliation (CPF) intensity, showing that 76.3% of samples with 5% or more Fe-Ti oxides have a corresponding CPF value of 2 or more (porphyroclastic foliation to ultramylonitc). These results indicate that there is a relationship between Fe-Ti oxide …
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Ceramic filter manufacturing in Northern Ghana : water storage and quality control
… began the construction of a ceramic pot filter (CPF) factory near the city of Tamale. By 2011, the factory had the molds, supplies, and kiln necessary for large-scale filter production, but needed to both increase its own water storage capacity, and to implement quality control standards. This …
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Organophosphorus Pesticide Exposure Effects on Neurobehavioral Development of Zebrafish and Characterization of Developmental Switch Between Two Cation-chloride Cotransporters (zfnkcc1 and zfkcc2)
… of three different OPs, chlorpyrifos (CPF), diazinon (DZN) and parathion (PA) on survival, AChE inhibition and larval motility. We conclude that at equimolar concentrations CPF is the most effective OP of the three tested. 300nM CPF inhibited AChE when measured at 5 days post …
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