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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Ecology of feral pigs on Santa Catalina Island /

Baber, Daniel W. January 1985 (has links)
Thesis (Ph. D.)--Oregon State University, 1985. / Typescript (photocopy). Includes bibliographical references (leaves 83-91). Also available on the World Wide Web.
2

Ecologia de comunidades de insetos associados à decomposição de Sus scrofa (Linnaeus) (Suidae) expostos em um igarapé de terra firme na Reserva Florestal Ducke, Manaus, Amazonas, Brasil

Silva, Aldenira Oliveira da 16 September 2011 (has links)
Submitted by Gizele Lima (gizele.lima@inpa.gov.br) on 2017-11-13T20:01:18Z No. of bitstreams: 2 Tese Aldenira OLIVERA.pdf: 130180230 bytes, checksum: 1d82811019343c51416babd3c06b6997 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-11-13T20:01:18Z (GMT). No. of bitstreams: 2 Tese Aldenira OLIVERA.pdf: 130180230 bytes, checksum: 1d82811019343c51416babd3c06b6997 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2011-09-16 / Fundação de Amparo à Pesquisa do Estado do Amazonas - FAPEAM / In order to determine the pigs decompositors insects in fresh water environment, there were conducted four experiments, two in each season of the year (rainy season and less rainy season) for a period of two years (2008 and 2009), at the Reserva Florestal Ducke, Manaus, pects related to succession, richness, relative abundance and different stages of the pigs decomposition. In each experiment there were used three domestic pigs, Sus scrofa L. (Suidae), weighting approximately 43 kg each, and taken alive until the collection place to be killed by a gun shot in the frontal region of its head, and placed in three metallic jails, that were partially submerged in three different areas along the Barro Branco stream, keeping approximately 90m distance from eacho ther area. The collected taxons were 35.655 belonging to five orders, 20 families, 40 morphotypes and 56 species. Among the blowflies, Chrysomya albiceps (Wiedeman, 1830) was the most abundant species with 10,880 individuals, while the specie Peckia (Pantonella) smarti (Lopes, 1941) belonging to Sarcophagidae family presented 679 specimens. Six stages were completed during the decomposition of the carcass: the first stage was the SF (submerged fresh), adapted to PSF (partially submerged fresh), having the average decomposition cycle as of 19.5 days in the Less Rainy period of 2008 and 2009 and 24.5 days in the Rainy season of 2008 and 2009. The early floating, floating decay and bloated deterioration stages, presented more Diptera abundance. The rearing of eggs and larvae yielded the following species: Chrysomya albiceps (Wiedemann, 1830), Hemilucilia segmentaria (Fabricius, 1805), H. semidiaphana (Rondani, 1850), Chrysomya putoria (Wiedemann, 1830), Lucilia eximia (Wiedemann, 1819), Paralucilia paraensis (Mello, 1969), Paralucilia fulvinota (Bigot, 1877), Paralucilia pseudolyrcea (Mello, 1969) (Calliphoridae); Peckia (Pattonella) smarti (Lopes, 1941), Peckia (Pattonella) pallidipilosa (Curran & Walley, 1934), Peckia (Pattonella) intermutans (Walker, 1861) and Peckia (Peckia) chrysostoma (Wiedemann, 1830) (Sarcophagidae). Larvae Calliphoridae and Sarcophagidae were the major consumers of pig, some adults which the biology were studied in the region, shown favorable to be used as forensic indicator. In fourteen species of adult Calliphoridae only 9 (64%) were collected in the immature form, and in fifteen of Sarcophagidae, only 4 (26%), demonstrating the importance of studying the biology of the larvae of these species. Among the aquatic immature, only chironomids were collected and raised to adulthood and found feeding on the soft parts of the pig body tissue using the bones as shelter. According to the results obtained from immature created, it is possible to estimate the overflow time of a corpse involving river systems. These results may indicate that in both periods (less and rainy and seasons) differed only in relation to precipitation, possibly due to the regularity of high temperature and relative humidity, characteristic in the Amazon region. The climatic periods have not come to negatively influence the composition and abundance of species. Likewise, there was no influence of temperature and pH of the water on the decomposition of body partially submerged in the different periods studied. / Para determinar as espécies de insetos decompositores de suínos parcialmente submersos em um igarapé de terra firme, foram realizados quatro experimentos, dois a cada período do ano de 2008 e de 2009 (período menos Chuvoso e Chuvoso) na Reserva Florestal Ducke, Manaus – Amazonas. Foram analisados aspectos referentes à sucessão, riqueza, abundância relativa e os estágios de decomposição do suíno. Em cada experimento foram utilizados três suínos domésticos Sus scrofa (Suidae) pesando aproximadamente 43 kg e levados vivos até o local de coleta para serem abatidos com um disparo de arma de fogo na região frontal da cabeça, e colocados em três gaiolas de ferro, que ficaram parcialmente submersas em três diferentes pontos ao longo do igarapé Barro Branco, distantes aproximadamente 90 m uma da outra. Os táxons coletados totalizaram 35.655 pertencentes a cinco ordens, 22 famílias, 44 morfótipos e 62 espécies. Em Calliphoridae Chrysomya albiceps (Wiedeman, 1830) foi a mais abundante com 10.880 indivíduos, enquanto que a espécie Peckia (Pantonella) smarti (Lopes, 1941) da família Sarcophagidae apresentou 679 espécimes. Seis estágios de decomposição em cadáver de suínos se completaram, sendo o primeiro estágio FS (Fresco Submerso), adaptado para FPS (Fresco parcialmente Submerso), sendo a decomposição total em média 19,5 dias no período menos Chuvoso de 2008 e 2009 e 24,5 dias no período Chuvoso de 2008 e 2009. Os estágios de flutuação inicial, deterioração de flutuação e deterioração inchada apresentaram maior abundância de Diptera. Da criação de ovos e larvas onde se destacaram as espécies da família Calliphoridae: Chrysomya albiceps (Wiedmann,1830), Hemilucilia segmentaria (Fabricius, 1805), H. semidiaphana (Rondani, 1850), Chrysomya putoria (Wiedemann, 1830), Lucilia eximia(Wiedemann, 1819), Paralucilia paraensis (Mello, 1969), Paralucilia fulvinota (Bigot, 1877), Paralucilia pseudolyrcea (Mello, 1969). Espécies da família Sarcophagidae: Peckia (Pattonella) smarti (Lopes, 1941), Peckia (Pattonella) pallidipilosa (Curran & Walley, 1934), Peckia (Pattonella) intermutans (Walker, 1861) e Peckia (Peckia) chrysostoma (Wiedemann, 1830). As larvas de Calliphoridae e Sarcophagidae foram as principais consumidoras do suíno, alguns adultos têm sua biologia estudada na região e mostraram serem propícias para serem utilizadas como indicadoras forenses. Das quartoze espécies adultas de Calliphoridae, nove (64%) foram coletadas na forma imatura, e das quinze de Sarcophagidae, apenas quatro (26%), demonstrando a importância de estudar a biologia das larvas dessas espécies. Entre os imaturos aquáticos, apenas os Chironomidae foram coletados e criados até a fase adulta e encontrados alimentando-se das partes moles do tecido corporal do suíno, utilizando os ossos como abrigo. De acordo com os resultados obtidos a partir dos imaturos criados é possível fazer uma estimativa do tempo de submersão de um cadáver que envolva sistemas lóticos. Tais resultados podem indicar que nos dois períodos (menos chuvoso e chuvoso) diferiram somente em relação a precipitação, possivelmente em função da regularidade da alta temperatura e umidade relativa característica na região amazônica. Não houve diferença na abudância e composição das espécies entre os períodos chuvoso e menos chuvoso. Da mesma forma não houve influência da temperatura e pH da água sobre a decomposição do cadáver parcialmente submerso nos diferentes períodos estudados.
3

The study of fossil faunas in the Walanae Basin, Indonesia

Suyono. January 2009 (has links)
Thesis (M.Sc.-Res.)--University of Wollongong, 2009. / Typescript. Includes bibliographical references: leaf 106-115.
4

Transgenic livestock: studies in improved efficiency of production and gene regulation /

French, Andrew James. January 1991 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, Depts. of Obstetrics and Gynaecology and Animal Sciences, 1991. / Includes list of papers and publications by the author. Includes bibliographical references (leaves 198-231).
5

Transgenic livestock: studies in improved efficiency of production and gene regulation / by Andrew James French

French, Andrew James January 1991 (has links)
Includes list of papers and publications by the author / Includes bibliographical references (leaves 198-231) / [12], vii, 231 leaves, 6 p. of col. plates : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Reports on studies aimed at increasing the efficiency of livestock transgenesis programs. Overall the experiments provide an improved basis for understanding the application of animal biotechnology to the pig. / Thesis (Ph.D.)--University of Adelaide, Depts. of Obstetrics and Gynaecology and Animal Sciences, 1991
6

Transgenic livestock: studies in improved efficiency of production and gene regulation

French, Andrew James. January 1991 (has links) (PDF)
Includes list of papers and publications by the author Includes bibliographical references (leaves 198-231) Reports on studies aimed at increasing the efficiency of livestock transgenesis programs. Overall the experiments provide an improved basis for understanding the application of animal biotechnology to the pig.
7

Isolation of hog renal brush border membrane vesicles with application to the study of cadmium nephrotoxicity

Leverone, Theresa Rose January 1982 (has links)
The epithelial cell of the kidney proximal convoluted tubule, like that of the small intestine, consists of two distinct plasma membrane surfaces referred to as the brush border, or luminal surface, and the basal-lateral, or contraluminal surface. Once isolated, membrane vesicles formed from the kidney cell can serve as models for the study of heavy metal mephrotoxin interaction with the two different plasma membrane surfaces. For ideal comparison between the two membranes, the isolation procedure should be identical for both. This has been accomplished by other investigators using differential centrifugation followed by free-flow electrophoresis or sucrose density centrifugation. Utilizing the self-forming gradient capabilities of Percoll, we have developed a less cumbersome procedure to effect simultaneous isolation of brush border and basal-lateral membrane vesicles. Brush border membrane vesicles isolated by this procedure exhibited 8 to 13-fold enrichment in marker enzyme activity but appeared to have impaired glucose uptake activity. Since the Percoll-prepared vesicles seemed unsuitable for uptake studies, brush border membrane vesicles isolated by a differential precipitation method were used to investigate the effect of cadmium on glucose uptake. Of the concentrations of cadmium tested, 0.1 mM CdCl slightly inhibited glucose uptake whereas 1 mM CdCl greatly reduced glucose uptake in these vesicles. / Master of Science
8

Trace element concentrations in melanotic swine

Sherman, Roseanne Marie January 1982 (has links)
It is believed that the presence of certain trace elements in the skin may play an important role in the formation of melanomas. In this work, neutron activation analysis and x-ray fluorescence analysis were used to determine trace element concentrations in cancerous, noncancerous and normal swine skin samples and in non-cancerous and normal swine tissue samples. In-vivo x-ray fluorescence analysis was also used to determine trace element concentrations in cancerous, non-cancerous, and normal swine skin. Data on forty-eight trace elements in each sample were obtained and correlated. The limited number of cancerous samples made definitive conclusions about trace element imbalances uncertain. Nevertheless, the in-vivo XRFA method was shown to be a very useful method for trace element determination. Additionally, good base line data were obtained for trace element concentrations in a variety of organs of Sinclair miniature swine. / Master of Science
9

Origem e distribuição do plexo lombossacral de javali (Sus scrofa - Linnaeus, 1758)

Santos, Lázaro Antonio dos 08 September 2016 (has links)
Objetivou-se estudar a origem e distribuição do plexo lombossacral de Sus scrofa. Foram utilizados 30 exemplares, sendo 13 fêmeas e 17 machos, após serem fixados em solução aquosa de formaldeído a 10%. Os javalis possuem cinco ou seis vértebras lombares e quatro sacrais. O plexo lombossacral origina-se dos segmentos medulares de L2 a S4. O nervo cutâneo femoral lateral de L2 a L4 ramifica-se nos músculos psoas maior e menor, oblíquo interno do abdome, linfonodos subilíacos e pele da região da articulação do joelho. O nervo femoral de L3 a L6 supre os músculos psoas maior, psoas menor, ilíaco, quadríceps femoral, pectíneo, emite nervo safeno que inerva o músculo sartório e fáscia e pele das articulações do joelho e tarso. O nervo obturatório de L3 a L6 distribui-se para os músculos obturador externo, pectíneo, grácil e adutor. Nervo glúteo cranial de L4 a S1 inerva os músculos glúteo médio e piriforme. Nervo glúteo caudal de L6 a S2 emite ramos para o músculo glúteo superficial. Nervo isquiático de L4 a S2 inerva os músculos tensor da fáscia lata, glúteo médio, glúteo profundo, glúteo acessório, gêmeos, quadrado femoral, semitendíneo, semimbranáceo, bíceps femoral. O nervo tibial supre os músculos gastrocnêmico, sóleo, poplíteo e flexores profundos dos dedos na região plantar divide-se em nervos plantares medial e lateral, os quais ramificam em digitais plantares. O nervo fibular comum divide-se em nervos fibular superficial e fibular profundo. O fibular profundo emite ramos para os músculos tibial cranial, fibular terceiro, extensor longos dos dedos, fibular longo, extensor lateral dos dedos e interósseo. O nervo fibular superficial supre a fáscia da articulação do tarso continua como nervos digitais dorsais. O nervo pudendo de S2 a S4 distribui-se para músculos, esfíncter externos do ânus, levantador do ânus, constritor da vulva, isquiocavernoso e bulboesponjoso, emite os ramos dorsal do clitóris e mamários que inervam clitóris e pele da região vulvar respectivamente, o ramo dorsal do pênis distribui-se na glande pênis, prepúcio e escroto. O nervo retal caudal de S2 a S4 distribui-se para os músculos levantadores do ânus, coccígeo e esfíncter externo do ânus. A formação do plexo lombossacral, assim como origens e distribuições dos nervos que o compõem são similares aos descritos na literatura alusiva aos animais domésticos. / It aimed to study the origin and distribution of the lumbosacral plexus of Sus scrofa. 30 specimens were used, with 13 females and 17 males, after being fixed in an aqueous 10% formaldehyde. Boars have five or six lumbar vertebrae and four sacral vertebrae. The lumbosacral plexus originates from the spinal cord segments from L2 to S4. The lateral femoral cutaneous nerve from L2 to L4 branches off to the psoas major and minor muscles, internal oblique of the abdomen, sub-iliac lymph nodes and the knee joint region skin. The femoral nerve L3 to L6 supplies the major psoas muscle, iliac minor psoas, femoral quadriceps, pectineus, emits saphenous nerve that innervates the sartorius muscle and fascia and skin of the knee and tarsus joints. The obturator nerve from L3 to L6 is distributed to the external obturator muscles, pectineus, gracilis and adductor. The gluteal cranial nerve from L4 to S1 innervates the gluteus medius and piriformis muscles. The gluteal caudal nerve from L6 to S2 emits branches to the superficial gluteal muscle. The sciatic nerve from L4 to S2 innervates the tensor muscles of the fascia lata, gluteus medius, deep gluteus, gluteus accessory, twins, femoral square, semitendinosus, semimembranosus, biceps femoris. The tibial nerve supplies the gastrocnemius, soleus, popliteal and the deep finger flexors in the plantar region that is divided into medial and lateral plantar nerves which branch off into digital plantar. The common fibular nerve is divided into superficial nerves and deep fibular. The deep fibular nerve emits branches to the cranial tibial, third fibular, long extensor of fingers, peroneus longus, lateral extensor digitorum and interosseous muscles. The superficial fibular nerve supplies the fascia joint of the tarsos, which continues as dorsal digital nerves. The pudendal nerve from S2 to S4 is distributed to muscles, external anal sphincter, levator ani, constrictor of the vulva, ischiocavernosus and bulbospongiosus, emits the dorsal branches of the clitoris and of the breast, that innervate the clitoris and skin of the vulvar region, respectively. The dorsal branch of the penis is distributed in the glans penis, prepuce and scrotum. The rectal caudal nerve from S2 to S4 is distributed to the levator ani, coccyx and external anal sphincter. The formation of the lumbosacral plexus, as well as sources and distributions of the nerves that form it, are similar to those described in the literature alluding to domestic animals. / Tese (Doutorado)

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