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Dissertations / Theses on the topic 'Migratory system'

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1

Bhala, Maclean J. "Non-migratory antiozonant system for natural rubber." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/12428.

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The current research on non-migratory antiozonant systems for natural rubber follows a tripartite study involving the formulation of a coating compound with static and dynamic ozone testing of the coatings, a review of some commercial in-mould coating techniques and analysis of diffusion of a commercial antiozonant through a coating. An outline of the mixing of Nipol 1312, a low molecular weight nitrile butadiene rubber grade produced by leon Chemicals Inc., with other ingredients to produce a coating composition is also given. Test pieces of the natural rubber substrate were placed in pre-coa
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2

Santos, Aline Lima. "Sistema migratório Brasil-Portugal: hierarquias geográficas e dinâmicas dos fluxos e contrafluxos populacionais no limiar do século XXI." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/8/8136/tde-06062016-114150/.

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As migrações constituem um dos pilares da relação entre Brasil e Portugal. Com esta premissa este estudo tem por objetivo compreender a formação, a sustentação no tempo e a configuração atual do sistema migratório luso-brasileiro. Partindo da Geografia da População, dialoga-se tanto com os demais campos da própria ciência geográfica, especialmente a Geografia Política e a Geografia Econômica, como com as demais ciências humanas e sociais, dentre outras a Sociologia e a Antropologia. Adota- se uma periodização que busca articular as migrações e as imaginações geográficas produzidas e produtoras
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3

Dawson, Rebekah Ilene. "On the Migratory Behavior of Planetary Systems." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:10955.

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For centuries, an orderly view of planetary system architectures dominated the discourse on planetary systems. However, there is growing evidence that many planetary systems underwent a period of upheaval, during which giant planets "migrated" from where they formed. This thesis addresses a question key to understanding how planetary systems evolve: is planetary migration typically a smooth, disk-driven process or a violent process involving strong multi-body gravitational interactions? First, we analyze evidence from the dynamical structure of debris disks dynamically sculpted during planets'
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4

Tierney, Lauren. "An Agent-Based Model of Wildlife Migratory Patterns in Human-Disturbed Landscapes." Thesis, University of Oregon, 2015. http://hdl.handle.net/1794/19266.

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In recent years, human decision-making has led to significant landscape impacts in the western United States. Specifically, migratory wildlife populations have increasingly been impacted by rural urban development and energy resource development. This research presents the application of agent-based modeling to explore how such impacts influence the characteristics of migratory animal movement, focusing on mule deer (Odocoileus hemionus) in Western Wyoming. This study utilizes complex adaptive systems and agent-based modeling frameworks to increase understanding of migratory patterns in a chan
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5

Thaduri, Sharanya. "Migratory experiences and perceptions towards pregnancy applications : Comparing insights from natives and immigrants living in Sweden." Thesis, Uppsala universitet, Människa-datorinteraktion, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-447419.

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Increasing number of pregnancy applications (apps) are complementing healthcare systems to educate expectants and improve their maternal well-being. Using similar kind of applications for people from multicultural background might have varied impact on their pregnancy experiences. Especially for immigrants, cultural beliefs first set in their home country, might conflict with practices followed in country of residence and information provided in digital resources. This study aimed to compare the perceptions on pregnancy app usage by first-time expectants living in Sweden from native and migran
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6

Gee, Christine Elizabeth. "The capacity for functional recovery in the flight system of Locusta migratoria migratorioides." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/nq22458.pdf.

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7

Mullen, Lisa Maria. "Potential interactions between components of the endocrine and immune systems of Locusta migratoria." Thesis, Birkbeck (University of London), 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406337.

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8

Dawson-Scully, Ken. "Protective effects of heat shock on synaptic transmission in the flight system of Locusta migratoria." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28190.pdf.

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9

Tolba, Amira A. A. E. "Ontogenetic studies on the immune system of two locust species : Locusta migratoria and Schistocerca gregaria." Thesis, Aston University, 1987. http://publications.aston.ac.uk/14502/.

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10

Miles, C. M. "Biochemical and developmental studies on protein components of the diacylglcerol transport system in Locusta migratoria migratorioides." Thesis, University of Hull, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382977.

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11

López-Hoffman, Laura, Jay Diffendorfer, Ruscena Wiederholt, et al. "Operationalizing the telecoupling framework for migratory species using the spatial subsidies approach to examine ecosystem services provided by Mexican free-tailed bats." RESILIENCE ALLIANCE, 2017. http://hdl.handle.net/10150/626546.

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Drivers of environmental change in one location can have profound effects on ecosystem services and human well-being in distant locations, often across international borders. The telecoupling provides a conceptual framework for describing these interactions-for example, locations can be defined as sending areas (sources of flows of ecosystem services, energy, or information) or receiving areas (recipients of flows). However, the ability to quantify feedbacks between ecosystem change in one area and societal benefits in other areas requires analytical approaches. We use spatial subsidies-an app
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12

Haase, Annely. "Nitric oxide and cyclic nucleotide signalling during the development of the enteric nervous system of the grasshopper, Locusta migratoria L." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969686218.

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13

Didelot, Gallois Dominique. "Organogenèse et différenciation des glandes annexes males du criquet migrateur : Locusta migratoria migratorioides (R et F)." Paris 6, 1986. http://www.theses.fr/1986PA066394.

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14

Brown, Elin. "Datamigration av Content Management Systems (CMS) för Multi-siteapplikationer : En studie på SQL-till-NoSQL migration." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-15549.

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Detta arbete undersöker om existerande Multi-siteapplikationer i CMS-systemet WordPress kan uppnå bättre prestanda genom att övergå från WordPress till det nya CMS-systemet Keystone JS genom en datamigration. Denna migrationsprocess utvärderas med ett vetenskapligt experiment, för att undersöka om migrationsprocessen i sig eventuellt kan medföra prestandaproblem, men också kring när en migration är relevant och i slutändan värd att genomföra. Experimentet mäter svarstider för olika databasoperationer av den originella WordPress-applikationen samt den migrerade Keystone JS-applikationen. Result
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15

Chen, Yu-Chieh, and 陳宇潔. "Cell Characteristics and Migratory Mechanism for the Highly Migratory Human Breast Cancer Cells Selected by a Transwell System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/76685985128223802733.

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碩士<br>國立陽明大學<br>藥理學研究所<br>100<br>Breast cancer is one of the most common malignant diseases in the world. Breast cancers have high heterogeneity in different patients. Based on each patients may have different genetic expressions and prognosis. The scientists categorize breast cancer into four types by cDNA microarray and also distinguish the difference of prognosis. These four types are: luminal A, luminal B, HER2+, and basal-like. Among these types, triple-negative breast cancer, called basal-like breast cancer as well, has poor prognostis and is highly recurrent. Metastasis is the major rea
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16

Lajiness, Jacquelyn D. "Shp2 deletion in post-migratory neural crest cells results in impaired cardiac sympathetic innervation." Thesis, 2014. http://hdl.handle.net/1805/5495.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Autonomic innervation of the heart begins in utero and continues during the neonatal phase of life. A balance between the sympathetic and parasympathetic arms of the autonomic nervous system is required to regulate heart rate as well as the force of each contraction. Our lab studies the development of sympathetic innervation of the early postnatal heart in a conditional knockout (cKO) of Src homology protein tyrosine phosphatase 2 (Shp2). Shp2 is a ubiquitously expressed non-receptor phosphatase involved in a variety of cellular func
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17

Yang, Shih-Hung, and 楊士弘. "Migratory environmental history of grey mullet in Tanshui River System revealed by water chemistry and otolith microchemistry." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/35524461547264258779.

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碩士<br>國立臺灣大學<br>漁業科學研究所<br>99<br>Abstract Otolith microchemistry has been validated to be a powerful tool in studying the migratory environmental history of fish. The chemical composition in otolith of fish is affected by the ambient water the fish inhabited. The migratory environmental history of the grey mullet, Mugil Cephalus in the Tanshui River was studied by the water chemistry particularly Ba, Sr and Ca, and the elements in the fish otolith. The water samples were collected from 45 sampling stations in the Tanshui River Basin over 5 times from September, 2009 to May, 2011. The data of o
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18

Lin, Chang-Yi, and 林長毅. "An Adaptive Migratory Home Protocol for Software DSM Systems." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/50090688239211223352.

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碩士<br>國立清華大學<br>資訊工程學系<br>92<br>In software distributed shared memory systems, home-based protocols are very good designs because of easy implementation, little memory overheads and good performance. The home-based protocols can be divided into two categories, the fix home protocol and the migratory home protocol. The fix home protocol produces less number of page faults than the migratory home protocol. It is suitable for applications with high degree of page sharing. The migratory home protocols can save the number of diff creating and diff propagation. It is suitable for applications w
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19

Robillard, Melissa M. "Understanding Complexity and Variability in Migratory Systems Using Brook Trout in Lake Superior." Thesis, 2012. http://hdl.handle.net/10214/3604.

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The propensity for animals to migrate can vary markedly among species, populations within species, and individuals within populations. Many taxa displaying variation in migratory behaviour and life history are attracting conservation concern as migratory populations decline in abundance. I developed a conceptual framework for delineating the nature of the broad phenotypic variation observed among and within migratory populations and apply this to Lake Superior brook trout (Salvelinus fontinalis). My literature review of variation in the migratory behaviour of fishes revealed that subsets of th
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20

Singletary, Kristan Gail. "Nocturnal bird migration and disrupted sleep/wake cycle." 2009. http://hdl.handle.net/2152/6637.

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In most birds, changing photoperiods from winter to spring and from summer to fall have two consequences: increased feeding followed by migratory activity. To date, the neural system controlling the activation of migratory activity remains unknown, though behavioral observations point to a possible mechanism. During the migration season, diurnal songbirds show extensive disruption of their sleep/wake cycle, sleeping during the day and flying at night. In mammals, similarly altered cycles of activity result from blocking orexin expression in the hypothalamus. It is possible that decreased orexi
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21

DEHGHANI, MEHRNOUSH. "Proteomic Analysis of the Heat Shock Response in the Nervous System of Locusta migratoria." Thesis, 2009. http://hdl.handle.net/1974/1727.

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There is a thermal range for the operation of neural circuits beyond which nervous system function is compromised. Poikilotherms are particularly vulnerable to thermal stress, since their body temperature can fluctuate with ambient temperature. Animals that experience frequent hyperthermia have various coping mechanisms such as the thermoprotective effect of a prior exposure to sublethal temperatures (heat shock response). The molecular mechanisms of this thermoprotection have yet to be understood. This project studies the changes in protein expression in the nervous system of gregarious Locus
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22

Hill, Sharon Rose. "The association and involvement of FMRFamide-related peptides with the digestive system in Locusta migratoria L." 2005. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=232833&T=F.

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23

Faircloth, Brant C. "An integrative study of social and reproductive systems in northern bobwhite (Colinus virginianus) a non-migratory, avian species bearing precocial young /." 2008. http://purl.galileo.usg.edu/uga%5Fetd/faircloth%5Fbrant%5Fc%5F200805%5Fphd.

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24

"The Socioeconomic and Ecological Drivers of Avian Influenza Risks in China and at the International Level." Doctoral diss., 2018. http://hdl.handle.net/2286/R.I.49308.

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abstract: Avian influenzas are zoonoses, or pathogens borne by wildlife and livestock that can also infect people. In recent decades, and especially since the emergence of highly pathogenic avian influenza (HPAI) H5N1 in 1996, these diseases have become a significant threat to animal and public health across the world. HPAI H5N1 has caused severe damage to poultry populations, killing, or prompting the culling of, millions of birds in Asia, Africa, and Europe. It has also infected hundreds of people, with a mortality rate of approximately 50%. This dissertation focuses on the ecological and s
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25

Haase, Annely [Verfasser]. "Nitric oxide and cyclic nucleotide signalling during the development of the enteric nervous system of the grasshopper, Locusta migratoria L. / von Annely Haase." 2003. http://d-nb.info/969686218/34.

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26

Hahn, Nina. "Functional characterization and molecular identification of neuroprotective receptors for erythropoietin-like ligands." Thesis, 2019. http://hdl.handle.net/21.11130/00-1735-0000-0005-12D9-2.

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