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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 348 for “"hatching"”.
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Stylized Hatching for 3D Animation
… extends work in this area by presenting an NPR hatching method that can be applied to 3D animated films to help them feel more hand drawn. In contrast to most other NPR methods, this method preserves the 3D lighting and effects of the film that make it interesting to watch. This process includes …
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Eggs, incubation and hatching asynchrony in gulls
… assumed that incubation behaviour influences hatching patterns, few studies have studied the effect of incubation behaviour during egg-laying and early incubation on hatching patterns due to difficulties to determine onset of incubation during egg-laying. I investigated whether incubation …
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Comparison of two different media and assisted hatching techniques on the embryo hatching rate using the mouse as a model
The use of in vitro culture media and assisted hatching techniques remain a challenging obstacle to hatching of blastocyst-stage embryos. Mechanical, chemical, enzymatic thinning and laser assisted techniques have been used previously, but there is still a lack of information on its application and …
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Hatching Responses and Salt Toxicosis of Aedes Mosquitoes
Made available in DSpace on 2014-12-14T07:04:00Z (GMT). No. of bitstreams: 1 7804042.pdf: 6271925 bytes, checksum: 9d4b40f74d321b8e85b80c6e3fa8d580 (MD5) Previous issue date: 1977
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Mechanisms Controlling Hatching of Winter Eggs of the Flatworm Mesostoma Ehrenbergii
Flatworms are the simplest of the triploblastic, bilaterally symmetrical protos tomes. As a group , they are worm-shaped with the body usually dorso-ventrally flattened. The epidermis is ciliated. | Most members of the class Turbellaria are free- living. Although planarians have frequently been …
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Characterisation of Host- Parasite- Microbiota Interactions that Drive Hatching in Trichuris Species
… of the host intestinal microbiota in inducing hatching of whipworm eggs. However, the mechanisms behind the interactions between Trichuris species and the host microbiota that result in hatching, particularly in T. trichiura, remain unexplained. Understanding hatching could lead to greater …
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Hatching synchrony and survival in early life in the painted turtle, Chrysemys picta
… avoidance strategy. In turtles, synchronous hatching promotes synchronous emergence from the nest and may limit predation by swamping and confusing predators or simply dilute the per capita risk of predation. However, synchronization of hatching in natural nests is complicated by the …
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Effects of Hypoxia on Embryonic Development and Hatching in Two Ambystoma and Two Rana Species
… of low DO (hypoxia) on embryonic development and hatching of two Ambystoma and two Rana species. In Ambystoma, hypoxia resulted in slowed development, delayed hatching, and embryos that were less developed at the time of hatching. Although the levels of DO used were not lethal to embryos, …
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Investigating the Actions of Interleukin-6 Family Members on Post-Hatching Blastocyst Development in Cattle
… 6 (IL6) cytokine family influences post-hatching in vitro produced (IVP) bovine blastocyst development. The first series of studies determined if adding human recombinant IL6 improved IVP blastocyst quality before and after cryopreservation. Adding IL6 at 25, 50, and 100 ng/ml increased …
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Biochemical Changes in the Musculus Complexus of Chick Embryos With Emphasis on Problems Associated With Hatching
Made available in DSpace on 2014-12-10T18:13:29Z (GMT). No. of bitstreams: 1 6604296.pdf: 3756464 bytes, checksum: 9ccdb6ea20f85fa5c3ef2e2079575cb7 (MD5) Previous issue date: 1965
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Gopher tortoise nest-site selection at burrows and the influence of nest environment on hatching success
… nest sites, and how those nest sites impact hatching success, may be important for successful species conservation. In this research, my objective was to 1) understand how the environment around potential nest sites (canopy, understory, and soil) influences gopher tortoise nest-site selection …
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Effect of heavy metals on spawning and hatching of Penaeus indicus in KwaZulu-Natal (Amatikulu Prawn Farm)
… hatched eggs, and zinc and copper on spawing and hatching of eggs from mature female Penaeus indicus. The experiment for each heavy metal was conducted separately. In the post-spawning experiment, hatched eggs were counted and exposed to 0.0, 0.1, 10., 10.0 and 100 ppm of zinc and lead to see the …
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Race studies and effects of soybean root leachate and herbicides on hatching and emergence of Heterodera glycines
Studies were conducted (1) to determine H. glycines egg hatch and emergence of second-stage juveniles (J2) from cysts exposed to soybean root leachate in vitro and under field conditions, (2) to determine effect of six soil-applied herbicides on hatch and emergence, (3) to clarify the distribution …
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The impacts of embryo development and asynchronous hatching on morphology, growth, and development of larval burbot (Lota lota).
… have not been extensively studied. Asynchronous hatching is a strategy used by other cod species as a bet-hedging strategy to ensure that some larvae are hatched in more advantageous conditions in a varying environment. Asynchronous hatching has been documented in burbot, but the extent of the …
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The effect of beach renourishment on sea turtle nesting and hatching success at Sebastian Inlet State Recreation Area, East-Central Florida
… incubation and inventoried to determine hatching and emergence success. Data on physical parameters were collected in monthly profiles of each beach. Compaction values were recorded with a cone penetrometer along transects from the dune to mean high water line. Temperature of the ambient …
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Etude des facteurs écologiques et écotoxicologiques impliqués dans la réussite d’incubation chez la tortue luth, Dermochelys coriacea, de Guyane Française
… Dermochelys coriacea, have relatively low hatching success in comparison to other marine turtle species. This low hatching rate is largely a result of high embryonic mortality rather than infertility, but the specific causes remain unknown. Leatherbacks are vulnerable to excessive adult …
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Arachidonic acid metabolism by early ovine embryos and the role of prostaglandins in one aspect of embryonic development
… whether prostaglandins have a role in embryo hatching from the zona pellucida. Ewes were superovulated and bred artificially, and embryos were collected on d 7 of pregnancy. Embryos were incubated with ethanol (control), indomethacin, PGE₂ or indomethacin and PGE₂ in an atmosphere of 5% CO₂ …
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