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 722 for “"mating"”.
-
Selection and Assortative Mating
Theoretical aspects of selection and assortative mating were considered separately and jointly. Selection based on the conditional mean of the merit variable given the data maximizes the expected value of the merit variable when the proportion selected is constant. This is optimal even if …
-
Neural and endocrine control of mating behavior in selected mating lines of chickens and quail
… and low (LML) cumulative number of completed matings (CNCM). In the initial experiment, discrete bilateral lesions were stereotaxically placed in the ruber nuclei of LML cocks. Contrary to published results, the LML cocks did not demonstrate an increase in mating behavior, but rather, the …
-
Male Mating Success in Lemur catta
… rank of males, number of males present during mating and harassment and interruption of mating were each examined to see how they impact male mating success. This study was conducted on four groups of ring-tailed lemur (Lemur catta) at Berenty Reserve, Madagascar, with data collected over three …
-
An information approach to parts mating
Thesis. 1979. Sc.D.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
-
Mating costs and gametic barriers to reproduction
Mating is essential to many organisms for their continued existence, and yet mating is costly. However, the fitness costs–which may immediately affect the individuals involved, or may affect their future reproductive output, are not often quantified. I assess costs that are acquired at different …
-
Mechanisms of Gradient Tracking During Yeast Mating
… of temporal integration is unknown. We used the mating response of the budding yeast, <italic>Saccharomyces cerevisiae</italic>, as a model to study eukaryotic gradient tracking. </p><p>During mating, yeast cells polarize and grow up a gradient of pheromone to find and fuse with opposite-sex …
-
Aggressive mating strategies in young adolescent girls
… is the time when humans begin utilizing mating strategies (e.g., flirting, fighting or rumor spreading about competitors) to attract and keep mates. Consistent empirical evidence shows that some adolescent boys are on a developmental pathway in which they utilize aggression and risky …
-
Effects of mating mindsets on variety seeking
This research shows that mating mindsets, which consumers commonly experience, can have a crucial impact on consumers' variety seeking tendencies. In two studies, we find that male consumers in a long-term mating mindset (versus a non-mating mindset) exhibit more (versus less) variety seeking …
-
Exploitation of nonadditive variance through nonrandom mating
… sires and maternal grandsires (mgs). Current mating programs, utilizing nonadditive genetic variance only by avoiding mating between close relatives to prevent inbreeding depression, could be improved upon by use of predicted combination effects due to nonadditive variation beyond inbreeding. …
-
Evaluation of corrective mating in Jersey cattle
… genetic variation, and evaluate corrective mating programs for 13 linear type traits scored linearly from 50 to 99 points. Estimates of additive genetic variances were 11 to 36 percent of within herd-classifier variance, with largest values for stature, strength, rump angle, rump width and …
-
Design of apparatus for threaded part mating experiments
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1981
-
Compliant part mating and minimum energy chamfer design
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1982.
-
Mating Success in Low-Density Gypsy Moth Populations
… studies were conducted to evaluate the effect of mating disruption on the mating success of the gypsy moth, Lymantria dispar (L), in low-density populations. The gypsy moth is an insect pest of hardwood forests in many regions of the world. The discovery of the sex pheromone disparlure …
-
Identification of Novel Genes Involved in Female Mating Choice
… species in which females display very distinct mating choices. Here, I tested whether 45 of such genes had effect on female mating using RNA interference and identified eight genes that either produced statistically significant delayed mating or deficits in mating. Two genes, CG17946 and …
-
Simulated Mass Selection Experiments in Random Mating Autotetraploid Populations
Made available in DSpace on 2014-12-12T00:17:45Z (GMT). No. of bitstreams: 1 7207081.pdf: 4333397 bytes, checksum: f25d81267c8933e3656d09b547a55239 (MD5) Previous issue date: 1971
-
Mating behavior of the alfalfa weevil, Hypera postica (Gyllenhal)
The qualitative and quantitative aspects of mating behavior, the stimulus for locating and mating, and the effects of varying temperatures on mating behavior and oviposition were studied in the laboratory. Postdiapausing weevils, collected in April, and nondiapausing weevils, reared in the …
-
The evolved information processing design of the human mating mind
V disertaci se věnuji zkoumání psychologických adaptací směřujících k překonání potíží se získáním partnera/partnerky. Postupuji metodou výzkumu částečných problémů, jako je (ne)promeškání příležitosti k interakci s potenciálně vhodným partnere/partnerkou, identifikace potenciálních …
-
Salamander Mating Behaviors and Their Consequences for Individuals and Populations
… new information that is necessary for future mating system studies in a little studied species, the marbled salamander (Ambystoma opacum). I studied female mating behavior, sexual selection, and the consequences of polyandry for individual females and salamander populations. I also compared …
-
Polymorphic mating signals and female choice in an Amazonian frog
… responsible for signal evolution and assortative mating. My thesis integrates genetic analysis, behavioral assays and morphological observations to understand the evolution of polymorphic male mating signals in the frog Peters’ Dwarf Frogs (Physalaemus petersi). In this frog, different populations …
Page 1 of 37