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Showing 1 to 20 of 2130 for “"Restriction"”.
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Restriction Analysis of Bacteriophage
<p>A restriction map of DNA from bacteriophage P3-C<sub>1</sub> for the endonucleases BamH I, Bgl II, EcoR I, Hind III, Sac I and Sca I is described in this study. The phage DNA was determined to be a linear double stranded molecule with a unit genomic length of 31 kb. After electrophoresis in 0.5% …
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A restriction estimate in R³
In this thesis, I proved a restriction estimate for paraboloid in R³ based on the polynomial partitioning method introduced by Larry Guth and the "two ends argument" introduced by Wolff and Tao.
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Restriction Semigroups: Structure, Varieties and Presentations
Classes of (left) restriction semigroups arise from partial transformation monoids and form a wider class than inverse semigroups. Firstly, we produce a presentation of the Szendrei expansion of a monoid, which is a left restriction monoid, using a similar approach to Exel's presentation for the …
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Sparse Fourier restriction for the cone
In Fourier restriction theory, weighted inequalities allow us to probe the shape of level sets. In this thesis, we describe a new weighted Fourier extension estimate for the cone and its connection with the Mizohata–Takeuchi conjecture. The main result Theorem 3.1 builds on techniques from geometry …
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Eph-mediated restriction of cerebrovascular arteriogenesis
Stroke is a leading cause of morbidity and long-term neurological disability in the U.S. Ischemic stroke, which accounts for approximately 90% of all strokes, is the result of an occlusion in the arteriole cerebrovascular network. No effective treatment options exist to provide neuroprotection from …
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Restriction of Food Intake by Dorsomedial Hypothalamus
<p>Leptin deficient ob/ob mice eat voraciously and their food intake is markedly reduced by leptin treatment. Leptin acts in part by regulating the activity of AGRP neurons and POMC neurons in the arcuate nucleus and neurons in other brain regions. In these dissertation, I will describe how we …
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Role of PABP4 in intrauterine growth restriction
In mammals, two members of the poly(A)-binding protein (PABP) family of RNAbinding proteins, PABP1 and PABP4, are widely expressed in a range of adult tissues. PABP1, the prototypical family member, has been intensively characterised as central regulator of both global and mRNA-specific translation …
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An event restriction interval theory of tense
… theoretical component of the theory, the event restriction interval. In Event Restriction Interval (ERI) Theory, sentences are semantically evaluated relative to an index which contains two key intervals, the evaluation interval and the event restriction interval. The evaluation interval marks …
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Restriction methods for shape and topology optimization
… shapes, a strategy commonly referred to as ""restriction."" We discuss the issue of existence of solutions in detail and outline the key elements of a well-posed restriction formulation for both density and implicit function parametrizations of the shapes. In the latter case, we demonstrate …
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Restricted projection families and weighted Fourier restriction
… The proof uses a weighted version of the broad restriction inequality, a narrow decoupling inequality for the cone, and some techniques of Du and Zhang \cite{zhang} originally developed for the Schrödinger equation. Most of the work in this thesis was published by the author in different forms …
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Hormone Responses to Two Different Energy Restriction Programs
There is a general decrease in satiety hormones (glucagon-like peptide 1 (GLP-1) and leptin) and an increase in hunger hormones (ghrelin) with weight loss, however results are conflicting. Currently, no studies have examined hormone levels comparing different approaches in calorie reductions for …
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Investment laws in Saudi Arabia : restriction and opportunities
The Kingdom of Saudi Arabia follows the holy Qur’an as its Constitution, and virtually every sphere of human activity is governed by the Shariah. Owing to the particular nature of the tenets of Shariah, several forms of business activity are held to be illegal and forbidden, including anything that …
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Enhancing Team Pursuit Performance using Blood Flow Restriction
… also examined the integration of blood flow restriction (BFR) into high-intensity interval training (HIIT) as an intervention to improve factors related to TP performance. A series of related investigations were conducted with trained cyclists up to the Olympic level. Study One recruited male …
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A Restriction Analysis of Klebsiella Pneumoniae Phage SBS
… with a battery of endoncleases and partial restriction maps determined. The potential of the phage as a vector for Klebsiella is discussed in the text. </p>
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Molecular Studies of Restriction Genes in Enteric Bacteria
<p>Bacterial cells contain various restriction-modification (R-M) systems to protect themselves from incoming foreign DNA. Most bacteria have at least one such system. In this study, the restriction genes and the location of the genes on the chromosome were examined in three enteric bacteria. …
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Bowel preparation for colonoscopy: is diet restriction necessary?
… bowel preparation regimens recommend dietary restriction for 24 to 48 hours before the procedure, the evidence for this is poor. Objectives: To establish whether dietary restriction during bowel preparation improves the quality of bowel preparation. Methods: A prospective single blind, …
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Restriction to hypersurfaces of non-isotropic Sobolev spaces
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1993.
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