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.
Results
Showing 1 to 20 of 80 for “"Matings"”.
-
Transfer of Transducing Prophages in Bacterial Matings
Made available in DSpace on 2014-12-05T21:45:36Z (GMT). No. of bitstreams: 1 6202883.pdf: 3421068 bytes, checksum: b3875701df65ce35f4f3b91f900bdf18 (MD5) Previous issue date: 1962
-
A System for Making Selective Matings in Dairy Cattle
<p>The term “selective matings” implies the selection of a sire to breed to each female on an individual, rather than a group or herd basis. Mating systems, other than random mating, may be classed either as the mating of like to like or as the mating of unlikes. This likeness or unlikeness may be …
-
Finite Subdivision Rules from Matings of Quadratic Functions: Existence and Constructions
… of invariant structures on modified degenerate matings are detailed, and examples of parameter-based families of matings for which these methods succeed (and fail) are given.
-
Matings of negatively correlated trees with applications to Schnyder woods and bipolar orientations
In this thesis, we study the mating of trees approach to Liouville quantum gravity decorated with SLE curves and its application to the scaling limit theory of decorated random planar maps. We focus on the less investigated regime where the SLE parameter K is larger than 8. We obtain three main …
-
On the Dynamics of Quasi-Self-Matings of Generalized Starlike Complex Quadratics and the Structure of the Mated Julia Sets
… map. Here, I investigate the Julia sets of self-matings of generalized starlike quadratic polynomials, which enjoy relatively simple combinatorics. The points in the Julia sets of the mated rational maps are completely classified according to their topology. The presence and location of buried …
-
Selection for serum cholesterol, voluntary physical activity, 56- day body weight and feed intake in albino mice
… on individual performance. Twenty-five paired matings plus five extra paired matings were used to perpetuate the lines each generation for five generations. The feed intake lines were perpetuated by within-sex, full-sib family selection with 30 paired matings per generation for five generations.
-
Inheritance of resistance to lindane in the German cockroach, Blattella germanica (L.)
… strain females, d) the progeny of pair matings within resistant and non-resistant strains and e) eight successive generation of a resistant strain isolated from further insecticide selection. 2. The method. employed in rearing the cockroaches and obtaining toxicological data on the …
-
The evolution of mating systems in black scavenger flies (Diptera: Sepsidae)
… after an oviposition bout (post-oviposition matings) and the males' escorting of ovipositing females. In a study of the patterns of sperm precedence in one sepsid species, I found that the sepsids' peculiar timing of matings is not associated with unusual patterns of sperm precedence: sepsid …
-
Core Entropy of Finite Subdivision Rules
… realizing quadratic Misiurewicz polynomials and matings of such polynomials. It is shown that for a non-restrictive class of finite subdivision rules realizing quadratic Misiurewicz polynomials, core entropy equals Thurston's core entropy. We also show that the core entropy of formal and …
-
Transfer of plasmids by genetically-engineered Erwinia carotovora
… under any experimental condition. In filter matings, RPI was transferred to wildtype Ecc at a frequency of 3.6 X 10⁻² transconjugants per donor (TPD) and to P. <i>fluorescens</i> at a frequency of 2.4 X 10⁻⁵ TPD. In matings conducted in potato tubers inoculated using sewing needles, the …
-
Multiple paternity and the breeding biology of the red-eyed treefrog, Agalychnis callidryas
… paternity in two egg clutches examined from two matings involving a female with two males. The breeding biology of females and the potential costs and benefits of mating with multiple males were examined. Females were found to decrease the number of eggs in matings with multiple males. In …
-
The movement behavior and reproductive ecology of western corn rootworm beetles (coleoptera: chrysomeliae) in Bt cornfields with structured and seed blend refuges
… beetles that survived Bt exposure. These “mixed-matings” are expected to produce heterozygous Bt susceptible offspring, delaying resistance because few resistant individuals will have opportunities to mate and produce homozygous Bt resistant offspring. Because the efficacy of the rootworm refuge …
-
Evaluating three potential sources of germplasm to improve growth rate, grain yield, and harvest index in pearl millet
… several other traits in the crop. Progeny from matings of two adapted inbred lines with three exotic accessions, a primitive landrace, a weedy relative, and a wild relative, also were evaluated for grain yield and growth rate improvement;The wild accession had a higher growth rate than the other …
-
Analysis of courtship behaviors of the desert tortoise, Gopherus agassizii
… of behavioral plasticity. Males in successful matings were larger, mounted longer, rammed less, and bit more than males in unsuccessful matings. These results lend insight into the sources and amount of variability in reptilian reproductive behaviors.
-
Analysis of catabolic plasmids in pseudomonas
… recipient strains derived from MT84. Analogous matings were carried out using the archetypal Tot plasmid pWWO, which specifies a plate-preferred conjugation system. pWW84 transfer occurred most efficiently in liquid broth matings. rather than plate matings. This observation contrasts with all …
-
Extrapair mating behaviors in the field sparrow: nocturnal singing and extraterritorial forays
… in prospecting and soliciting extra-pair matings. While forays are common among both male and female Field Sparrows, a higher foraying rate did not result in greater extra-pair paternity (EPP). Rather, my data provide strong evidence that extra-pair matings are determined by current and …
-
A Comparison of Intrauterine and Cervical Artificial Insemination Rods on Farrowing Rate and Litter Size in Artificially Mated Sows
… influence of the sows. One hundred ninety-three matings were performed using the experimental intrauterine rod, and one hundred ninety-six matings were performed using the traditional cervical rod as the control. Total number of piglets born per litter was measured after each sow farrowed, and …
-
Mate choice and reproductive success in the speckled bushcricket, Leptophyes punctatissima
… though males that call more may achieve more matings. There is no evidence that body asymmetry has any effect on mating success for either sex. Males on a protein-supplemented diet do not produce larger spermatophores than males whose diet is not supplemented, but they do mate more often, …
-
Inheritance of chlordane resistance in the German cockroach, Blattella germanica
… between two parental strains, c) progeny of pair matings within resistant and non-resistant strains, and from a cross between resistant females and non-resistant males.
Page 1 of 4