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 725 for “"crossover"”.
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Genetic Analysis of Crossover Defective Mouse Spermatocytes Reveals Discrete Crossover Precursor Intermediates
… defective meiotic DNA repair product called a crossover. When DNA double-strand breaks are repaired as crossovers via homologous recombination, homologs exchange chromosome arms allowing sister chromatid cohesion to physically connect homologs and hence properly segregate them. Consistently, …
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Amphiphilic Spin Crossover Complexes
… characterization of amphiphilic iron(II) spin crossover complexes. The prime attention was on the self-assembly ability of the synthesized compounds and the influence of the supramolecular arrangement in the solid on the SCO behaviour. The used ligand system is based on Schiff base-like Jäger …
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Sampling methods for case-crossover designs
Includes bibliographical references (page 40).
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Single-crossover recombination and ancestral recombination trees
… in discrete time, allowing only for single-crossovers, is studied extensively for the first time. We elaborate the underlying mathematical structure of the discrete-time process by providing a systematic approach that exploits the inherent (multi)linear and combinatorial structure of the …
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Generalized partition crossover for the traveling salesman problem
… operator known as Generalized Partition Crossover (GPX) for the TSP. GPX is unique among other recombination operators for the TSP in that recombining two local optima produces new local optima with a high probability. Thus the operator can 'tunnel' between local optima without the need …
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Eclectic: A Recording Project of Original Crossover Compositions
<p>Music makers have always borrowed one another’s influences, across philosophies, across culture, and thus, across genres. Since the 1950’s, a time when classical music was at its farthest reach from popular music, the rift between these two “worlds” has shrunk, and music crafters from each …
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The BCS - BEC Crossover in Ultracold Fermion Gases
The continuous crossover between a Bardeen-Cooper-Schrieffer (BCS)-type superfluid of fermion pairs and a Bose-Einstein condensate (BEC) of tightly bound bosonic molecules can be attributed to the spontaneous breaking of global $U(1)$ gauge symmetry which underlies both quantum condensation …
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The place of crossover designs in infertility trials
… model to illustrate that the message that the crossover design should be avoided is not the correct one. Rather, when using the crossover design one should be sure to analyze it correctly. The study has found that treatment estimates obtained by allowing women to get pregnant twice has lower …
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Spin Crossover under Extreme Conditions: A Structural Approach
… studies of several iron complexes that show spin crossover (SCO) properties are presented and intrinsic links between the structure and properties have been established for these systems. X-ray diffraction experiments of samples under extremes of temperature and pressure and after irradiation with …
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ESR studies of some iron(II) spin crossover complexes.
… the changes within the system during HS ↔ LS crossover to be observed. The computer simulations of the powder ESR spectra of Mn2+ ion in these complexes using the SimFonia simulation program, obtained from Broker, gave numerical values of D and E for Mn2+ in the [Fe(bpp)2][CF3SO 3]2·H2O and …
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Semiparametric Varying Coefficient Models for Matched Case-Crossover Studies
… to semiparametric modeling for matched case-crossover data. In matched case-crossover studies, it is generally accepted that the covariates on which a case and associated controls are matched cannot exert a confounding effect on independent predictors included in the conditional logistic …
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Crossover: boundaries, hybridity, and the problem of opposing cultures
Classical crossover is a term regularly used but not yet adequately defined. This<br/>thesis attempts to redress this imbalance through a study of the relationships<br/>between high and low musical cultures. Starting from the separation of highbrow<br/>and lowbrow, the concepts of genre and musical …
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Synthesis of Heteroleptic Redox-active and Spin-crossover Complexes
… complexes with the potential for spin-crossover is synthetic in nature. The intent behind incorporating the Schiff base ligand N-(8-quinolyl)salicylaldimine with some redox-active species into a mixed ligand complex featuring a d4-d7 metal ion center was to prime the material for …
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Dynamic environmental transmission electron microscopy of spin crossover materials
… work reported here focuses on the study of spin crossover (SCO) materials via dynamic transmission electron microscopy (DTEM). SCO metal complexes commonly contain first-row d4-d7 transition metals in an octahedral ligand field, which splits the d-orbitals into tripledegenerate t2g and …
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Crossover Kids: Maltreatment Experiences, Subsequent Maladjustment, and Systems of Care
… likely than youth in the general population to “crossover” into another system of care - The Youth Justice System (YJS). While the CWS does not cause youth to crossover to the YJS, precipitating experiences such as maltreatment histories, mental health concerns, and psychosocial issues are …
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ATM plays multiple roles in crossover regulation during mouse spermatogenesis
… of homologous chromosomes must have at least one crossover recombination event, or they risk randomly segregating, leading to aneuploidy—a major cause of infertility, miscarriage, and birth defects. In humans, approximately 1 in 20 sperm and 1 in 4 oocytes are aneuploid many from errors in …
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Vo(2) transitional response to a crossover from priming exercise
… the oxygen uptake response that occurs between a crossover of modes of priming exercises. Participants completed three exercise trials. Trial 1 involved cycling from rest to a target workload, Triat 2 entailed cycling from rest to light and then to the target workload, and Trial 3 was from rest to …
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Curiosities of the Electron Dynamics of Spin-Crossover Solids (Moessbauer)
… have been prepared and their spin-crossover properties in the solid state have been characterized using variable-temperature (4.2-313 K) magnetic susceptibility, EPR spectroscopy, and ('57)Fe Mossbauer spectroscopy. For the unperturbed complex "FeP" the low-spin (LS) (DBLHARR) …
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