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Showing 1 to 20 of 1434 for “"recombination"”.
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Single-crossover recombination and ancestral recombination trees
Modeling the process of recombination in the deterministic limit of an infinite population leads to a large coupled nonlinear dynamical system that is notoriously difficult to treat and solve . In this thesis, a particular case of recombination in discrete time, allowing only for single-crossovers, …
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Recombination in Tetrahymena Thermophila
Made available in DSpace on 2014-12-14T16:11:12Z (GMT). No. of bitstreams: 1 7714982.pdf: 3650716 bytes, checksum: 6e921602d05885acad0fe8b3c9114392 (MD5) Previous issue date: 1977
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Electron-beam-pumped recombination lasers
… are believed to be predominantly pumped by recombination. For the mercury laser, kinetic processes in the partially ionized plasma following the excitation pulse of high-energy electrons should favor the production of atomic mercury ions and molecular ions containing mercury. Subsequent …
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Recombination Luminescence in Irradiated Silicon
Submitted by Yan Wang (yanwang3@illinois.edu) on 2010-06-24T22:51:52Z No. of bitstreams: 1 1967_spry.pdf: 3669717 bytes, checksum: 2902addd3a0bad595e749cc994305e5a (MD5)
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Reducing recombination in organic photovoltaics
In this thesis, I consider two methods to improve organic photovoltaic efficiency: energy level cascades and promotion of triplet state excitons. The former relies on a thin layer of material placed between the active layers of a photovoltaic device to destabilize excitons. If the interfacial …
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Experimental Investigations of Atomic Nitrogen Recombination
Made available in DSpace on 2014-12-09T18:12:19Z (GMT). No. of bitstreams: 1 6503190.pdf: 6341303 bytes, checksum: 1bbaef4ed6cbd8e54689987be3acf81b (MD5) Previous issue date: 1964
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Experimental studies of myoglobin recombination kinetics
The kinetics of recombination between the protein myoglobin and oxygen or carbon monoxide have been studied as a function of temperature between 40 K and 350 K. Four distinct kinetic regions have been observed. A transient recorder with a logarithmic time base is described which allows storage of …
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Recombination lifetimes in gamma-irradiated silicon
The small-signal recombination lifetimes of minority carriers were measured as a function of temperature in silicon before and after irradiation at room temperature by cobalt 60 gamma rays. The resistivity of the boron doped samples ranged between 10 and 5000 ohm-cm, and the resistivity of the …
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Recombination in low temperature helium plasmas
A study was made of the afterglows of plasmas produced in pure helium gas at atomic densities ~lo18 - lo19/cc . Qualitative observations were made at a gas temperature of 4.20K while most quantitative results were obtained at a gas temperature of 77 o K at a pressure of 9.5 Torr in a region of free …
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Conserved recombination patterns across coronavirus subgenera
Recombination contributes to the genetic diversity found in coronaviruses and is known to be a prominent mechanism whereby they evolve. It is apparent, both from controlled experiments and in genome sequences sampled from nature, that patterns of recombination in coronaviruses are nonrandom and …
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Electron-Ion Recombination at Temperatures below 300K
Title: Recombination study of ions with electrons at temperatures below 300 K Author: Tomáš Kotrík Department: Department of Surface and Plasma Science Supervisor of the doctoral thesis: Prof. RNDr. Juraj Glosík, DrSc. Department of Surface and Plasma Science Abstract: Presented is the study of …
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Equine Spermatogenesis: Meiotic Chromosome Behavior and Recombination
… stages of the first meiotic division. Meiotic recombination is considered to be the major outcome of meiosis. It is essential for proper chromosome segregation and formation of normal haploid gametes. Analysis of recombination frequency and distribution are crucial for genomic and association …
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Protein/DNA interactions during site-specific recombination
Bacteroides species are one of the most prevalent groups of bacteria present in the human colon. Many strains carry large, integrated elements including conjugative transposons (CTns) and mobilizable transposons (MTns). One such conjugative transposon is CTnDOT, which is 65 kb in size and encodes …
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Physics-based molecular modeling of recombination reactions
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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Silencing and recombination in yeast ribosomal DNA
… showing the dynamics of rDNA silencing and recombination in laboratory strains.
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Meiotic Dna Re-Replication And The Recombination Checkpoint
… one round of DNA replication precedes programmed recombination and two nuclear divisions. Cyclin dependent kinase 1 (Cdk1) is required for meiosis, and any disruption in its activity leads to meiotic defects. The Cdk1 inhibitor, Sic1, regulates the G1-S transition in the mitotic cell cycle and the …
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Generation, recombination and extraction of charges in polymer
… between charge extraction and free charge recombination, accounting for further efficiency losses. A conclusive picture and the development of precise methodologies for investigating the fundamental processes in organic solar cells are crucial for future material design, efficiency …
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Evaluation of the Recombination Efficiencies of FLP Proteins
<p>Site-specific recombination systems are powerful tools for genetic modification. They have been used to integrate a transgene into a pre-defined locus and to remove marker genes from a transgene locus. Two of the most widely used site-specific recombination systems in plants are the Cre/lox …
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Recombination Pumped Atomic Nitrogen and Carbon Afterglow Lasers
Made available in DSpace on 2014-12-14T06:26:01Z (GMT). No. of bitstreams: 1 7708962.pdf: 1660013 bytes, checksum: 47799b2eda9ecfabc20e9ac413379e8e (MD5) Previous issue date: 1976
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