Academic literature on the topic 'Animals, Migration of'

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Journal articles on the topic "Animals, Migration of"

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Bauer, S., and B. J. Hoye. "Migratory Animals Couple Biodiversity and Ecosystem Functioning Worldwide." Science 344, no. 6179 (2014): 1242552. http://dx.doi.org/10.1126/science.1242552.

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Animal migrations span the globe, involving immense numbers of individuals from a wide range of taxa. Migrants transport nutrients, energy, and other organisms as they forage and are preyed upon throughout their journeys. These highly predictable, pulsed movements across large spatial scales render migration a potentially powerful yet underappreciated dimension of biodiversity that is intimately embedded within resident communities. We review examples from across the animal kingdom to distill fundamental processes by which migratory animals influence communities and ecosystems, demonstrating t
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Kölzsch, Andrea, Erik Kleyheeg, Helmut Kruckenberg, Michael Kaatz, and Bernd Blasius. "A periodic Markov model to formalize animal migration on a network." Royal Society Open Science 5, no. 6 (2018): 180438. http://dx.doi.org/10.1098/rsos.180438.

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Regular, long-distance migrations of thousands of animal species have consequences for the ecosystems that they visit, modifying trophic interactions and transporting many non-pathogenic and pathogenic organisms. The spatial structure and dynamic properties of animal migrations and population flyways largely determine those trophic and transport effects, but are yet poorly studied. As a basis, we propose a periodic Markov model on the spatial migration network of breeding, stopover and wintering sites to formally describe the process of animal migration on the population level. From seasonally
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Peker, Gurbet. "Djuren i den rurala livsstilsmigrationen." Budkavlen 99 (November 10, 2020): 90–118. http://dx.doi.org/10.37447/bk.99535.

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 Animals and Rural Lifestyle Migration
 
 
 
 Gurbet Peker
 
 
 
 Keywords: Lifestyle migration, rural idyll, animal husbandry, interspecies relationships
 
 
 
 This article examines the role of animals and animal husbandry in rural lifestyle migration to the Gotlandic countryside. One area of interest is the significance of animals and animal husbandry as part of migrants’ notions of the rural idyll and the place they seek. The article also describes and analyses animal-related everyday practices and interspecies relationships
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Rajasekar, DR L., and R. Praveen Kumar. "DEVELOPMENT OF ANIMAL TRACKING SYSTEM USINGCOMPUTER VISION." International Journal of Engineering Applied Sciences and Technology 7, no. 11 (2023): 60–68. http://dx.doi.org/10.33564/ijeast.2023.v07i11.011.

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The behavior of animals in the wild is studied animal migration tracking in wildlife biology, conservation biology, and ecology and wildlife management. Animal banding, which involved attaching passive ID tags to animal’s legs to identify it in a sub sequent catch and release operation, was one of the earliest techniques used. A tiny radio transmitter is fastened to the animals during radio tracking, and a receiver tracks the signal.In genius temporary methods use GP tags that retain are cord of the animal’s where abuts as well as satellites to follow tagged animals. Devices tailored to the sp
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Hobson, Keith A. "Tracking animal migration with stable isotopes." Open Access Government 38, no. 1 (2023): 458–59. http://dx.doi.org/10.56367/oag-038-10757.

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Tracking animal migration with stable isotopes Keith A. Hobson from Western University and Environment and Climate Change Canada, walks us through tracking animal migration with stable isotopes, starting with some background information. Animal migration is one of the most iconic of all natural phenomena and humans have marvelled at animals' ability to navigate over vast distances often under arduous conditions. Periodic to-and-fro migration is the most familiar form, and birds have clearly captured our imagination on that front with their conspicuous annual movements and arrivals between cont
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Forrester, Wayne C., Elliot Perens, Jennifer A. Zallen, and Gian Garriga. "Identification of Caenorhabditis elegans Genes Required for Neuronal Differentiation and Migration." Genetics 148, no. 1 (1998): 151–65. http://dx.doi.org/10.1093/genetics/148.1.151.

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Abstract To understand the mechanisms that guide migrating cells, we have been studying the embryonic migrations of the C. elegans canal-associated neurons (CANs). Here, we describe two screens used to identify genes involved in CAN migration. First, we screened for mutants that died as clear larvae (Clr) or had withered tails (Wit), phenotypes displayed by animals lacking normal CAN function. Second, we screened directly for mutants with missing or misplaced CANs. We isolated and characterized 30 mutants that defined 14 genes necessary for CAN migration. We found that one of the genes, ceh-10
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Xiao, Yunpeng, and Jianjun Jiao. "Dynamics of an Impulsive Predator–Prey Model with a Seasonally Mass Migrating Prey Population." Mathematics 13, no. 10 (2025): 1550. https://doi.org/10.3390/math13101550.

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Seasonality is a complex force in nature that affects multiple processes in wild animal populations. Animal mass migration refers to the migration of a large number of animals from a certain distance due to breeding, foraging, climate change or other reasons. In this work, an impulsive predator–prey model with a seasonally mass migrating prey population is constructed. The predator–extinction boundary periodic solution of system (3) is proved to be globally asymptotically stable. System (3) is also proved to be permanent. Our results provide a theoretical reference for biodiversity protection
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Satterfield, Dara A., Peter P. Marra, T. Scott Sillett, and Sonia Altizer. "Responses of migratory species and their pathogens to supplemental feeding." Philosophical Transactions of the Royal Society B: Biological Sciences 373, no. 1745 (2018): 20170094. http://dx.doi.org/10.1098/rstb.2017.0094.

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Migratory animals undergo seasonal and often spectacular movements and perform crucial ecosystem services. In response to anthropogenic changes, including food subsidies, some migratory animals are now migrating shorter distances or halting migration altogether and forming resident populations. Recent studies suggest that shifts in migratory behaviour can alter the risk of infection for wildlife. Although migration is commonly assumed to enhance pathogen spread, for many species, migration has the opposite effect of lowering infection risk, if animals escape from habitats where pathogen stages
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Dällenbach, Laura J., Alexandra Glauser, Ka S. Lim, Jason W. Chapman, and Myles H. M. Menz. "Higher flight activity in the offspring of migrants compared to residents in a migratory insect." Proceedings of the Royal Society B: Biological Sciences 285, no. 1881 (2018): 20172829. http://dx.doi.org/10.1098/rspb.2017.2829.

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Migration has evolved among many animal taxa and migratory species are found across all major lineages. Insects are the most abundant and diverse terrestrial migrants, with trillions of animals migrating annually. Partial migration, where populations consist of resident and migratory individuals, is ubiquitous among many taxa. However, the underlying mechanisms are relatively poorly understood and may be driven by physiological, behavioural or genetic variation within populations. We investigated the differences in migratory tendency between migratory and resident phenotypes of the hoverfly, E
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Holland, Richard A., and Martin Wikelski. "Studying the Migratory Behavior of Individual Bats: Current Techniques and Future Directions." Journal of Mammalogy 90, no. 6 (2009): 1324–29. https://doi.org/10.5281/zenodo.14815097.

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(Uploaded by Plazi for the Bat Literature Project) Migrating bats are among themost poorly understood of migratory taxa, with relatively little information available on theirbehavior and ecology during migration compared to other taxa. This arises because of the "small animal problem," namely the limitations of current technology to track individual animals thatweigh <190 g. In this paper (which is not a comprehensive review of bat migration) we assess the limits of current techniques available to study themigratory behavior of individual bats and what is needed to take the study of the beh
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Dissertations / Theses on the topic "Animals, Migration of"

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Vogl, Gero. "Diffusion and Brownian motion analogies in the migration of atoms, animals, men and ideas: Diffusion and Brownian motionanalogies in the migration of atoms, animals, men and ideas." Diffusion fundamentals 2 (2005) 2, S. 1-15, 2005. https://ul.qucosa.de/id/qucosa%3A14331.

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The macroscopic laws of diffusion were laid down for the case of liquids by Adolf Fick 150 years ago who realised the analogy of diffusion and heat conduction. 100 years ago Einstein and Smoluchowski put up the equation named after these scientists teaching us how to trace down the motion of a single diffusing particle and thus to understand long time unexplained Brownian motion as a fluctuation phenomenon. In the last fifty years these laws and their combination were boldly but successfully applied to the diffusion, migration, dispersion of single atoms, men, animals and ideas. We start by sh
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Jaracz-Ros, Agnieszka. "Studies of the migration and homing of leukemic cells in live animals." Paris 7, 2011. http://www.theses.fr/2011PA077130.

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Les perturbations de l'hématopoïèse peuvent mener au développement d'une leucémie mais les voies moléculaires jouant un rôle dans la leucémogenèse ne sont pas encore identifiés. Les traitements actuels des leucémies myéloïdes aigus (LMA) ne permettent pas d'éradiquer complètement les cellules leucémiques de la moelle osseuse chez certains patients ce qui fréquemment entraîne une rechute après le traitement de ces patients. Un modèle animal reproduisant la rechute d'une leucémie LMA a été utilisée pour étudier in vivo les événements initiaux qui se produisent lorsque les cellules leucémiques pr
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Vogl, Gero. "Diffusion and Brownian motion analogies in the migration of atoms, animals, men and ideas." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-195050.

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The macroscopic laws of diffusion were laid down for the case of liquids by Adolf Fick 150 years ago who realised the analogy of diffusion and heat conduction. 100 years ago Einstein and Smoluchowski put up the equation named after these scientists teaching us how to trace down the motion of a single diffusing particle and thus to understand long time unexplained Brownian motion as a fluctuation phenomenon. In the last fifty years these laws and their combination were boldly but successfully applied to the diffusion, migration, dispersion of single atoms, men, animals and ideas. We start by sh
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Tekeli, Işil. "Bioengineering approach to study the role of cell migration during zebrafish heart regneration." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/396098.

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Zebrafish heart regeneration remains one of the most interesting phenomena of the 21st century. Considering the extremely high rate of deaths due to cardiovascular diseases in the developed countries, 1 out of every 3 people, understanding natural cardiac regeneration would address a worldwide challenge. Even though many aspects of zebrafish heart regeneration have been elucidated, there are still many open questions to be answered. Among these, the work presented here focuses on understanding cell migration mechanisms of cardiomyocytes and epicardial cells during heart regeneration. The fi
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McReynolds, Mark Stephen. "Patterns of Seasonal Variation in Diet, Abundance, and Movement of the Scarlet Macaw (Ara macao) in southern Belize." Antioch University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1357153100.

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Ponti, de la Iglesia Raquel. "Evolutionary patterns and processes of migratory behaviour in Palearctic-Paleotropical birds = Patrones y procesos evolutivos del comportamiento migratorio en aves del Paleártico­-Paleotrópico." Doctoral thesis, Universitat de Barcelona, 2018. http://hdl.handle.net/10803/665205.

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One of the most fascinating aspects of birds is their capability of migrate from one area to another throughout the year. Unravelling the patterns and processes involved in the evolution of migration is paramount to understand the current biogeography, ecology and evolution of migratory birds. On this basis, the main aim of the present thesis was to extend the knowledge of the mechanisms involved in the evolution of bird migration. To achieve that two main sections are presented in this thesis. In the first one, the aims were to disentangle the patterns of evolution of migratory behaviour and
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Schroen, Daniel J. Cheung H. Tak. "Effect of entactin and other extracellular matrix molecules on the adhesion and migration of mouse thymocytes and a thymocyte cell line." Normal, Ill. Illinois State University, 1994. http://wwwlib.umi.com/cr/ilstu/fullcit?p9507287.

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Thesis (Ph. D.)--Illinois State University, 1994.<br>Title from title page screen, viewed March 21, 2006. Dissertation Committee: H. Tak Cheung (chair), Herman E. Brockman, Lynne A. Lucher, Philip D. Morse, Anthony J. Otsuka. Includes bibliographical references (leaves 101-111) and abstract. Also available in print.
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Honkomp, Nora. "Exploring shifts in migration phenology and breeding distribution of declining North American avian aerial insectivores." Kent State University Honors College / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1620686253404077.

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Fischer, Silas E. "Post-fledging and Migration Ecology of Gray Vireos (Vireo vicinior) and Using ArtScience to Explore Gender and Identity." University of Toledo / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=toledo158895774132047.

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Peker, Gurbet. "Landsbygd i nöd och lust : En etnologisk studie av livsstilsmigration till Gotland." Thesis, Uppsala universitet, Institutionen för kulturantropologi och etnologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-385065.

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The purpose of this study is to examine lifestyle migration as a cultural and everyday practice, with the emphasis being on observing how lifestyle changes from urban to rural are described, practiced and made meaningful by people who have left major Swedish cities behind, in favour of a life on the Gotlandic countryside. The empirical material has been collected through ethnographical methods and is based on observations and qualitative interviews with 13 individuals who all reside on farms and practice animal husbandry. Focus has been placed on the practices, conceptions and other expression
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Books on the topic "Animals, Migration of"

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Paul, Bennett. Migration. Thomson Learning, 1995.

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Mebane, Jeanie. Animal migration. Capstone Press, 2013.

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Nielsen, Nancy J. Animal migration. F. Watts, 1991.

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Lock, Deborah. The great migration. DK, 2012.

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Carmichael, L. E. Locust migration. The Child's World, 2012.

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Brynie, Faith Hickman. Do animals migrate? Enslow Publishers, 2010.

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Robert, Norris. On the move: Animal migration. Rourke Educational Media, 2015.

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Wood, Alix. Amazing animal journeys. Windmill Books, 2013.

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Sayre, April Pulley. Home at last: A song of migration. Holt, 1998.

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Berkes, Marianne Collins. Going home: The mystery of animal migration. Dawn Publications, 2010.

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Book chapters on the topic "Animals, Migration of"

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Seynhaeve, Ann L. B., and Timo L. M. ten Hagen. "An In Vivo Model to Study Cell Migration in XYZ-T Dimension Followed by Whole-Mount Re-evaluation." In Cell Migration in Three Dimensions. Springer US, 2023. http://dx.doi.org/10.1007/978-1-0716-2887-4_19.

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AbstractCell migration is a very dynamic process involving several chemical as well as biological interactions with other cells and the environment. Several models exist to study cell migration ranging from simple 2D in vitro cultures to more demanding 3D multicellular assays, to complex evaluation in animals. High-resolution 4D (XYZ, spatial + T, time dimension) intravital imaging using transgenic animals with a fluorescent label in cells of interest is a powerful tool to study cell migration in the correct environment. Here we describe an advanced dorsal skinfold chamber model to study endot
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Mondal, Chandrani, Julie Di Martino, and Jose Javier Bravo-Cordero. "Imaging Cell Adhesion and Migration." In Imaging from Cells to Animals In Vivo. CRC Press, 2020. http://dx.doi.org/10.1201/9781315174662-15.

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Entenberg, David, Maja H. Oktay, and John Condeelis. "Intravital Imaging of Cancer Cell Migration In Vivo." In Imaging from Cells to Animals In Vivo. CRC Press, 2020. http://dx.doi.org/10.1201/9781315174662-13.

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Gibson, R. N. "Go with the flow: tidal migration in marine animals." In Migrations and Dispersal of Marine Organisms. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2276-6_17.

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Nzioka, Jacinta. "Managing the migration – Maasai Mara National Reserve and Serengeti World Heritage Site connectivity." In Managing Transnational UNESCO World Heritage sites in Africa. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-80910-2_1.

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AbstractThe greatest natural mass wildlife migration on the planet, involving one ecosystem, two different nations and millions of animals, brings together the Serengeti World Heritage Site (WHS) in Tanzania and the Maasai Mara National Reserve in Kenya. In terms of natural heritage, the border is crossed by the Mara River and represents a fluid boundary. On the scale of Indigenous local communities, the borderlands area is also shared on both sides by the Maasai peoples, long associated with a pastoral and herding tradition of domesticated animals, but more recently through transformed engage
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Hantgan, Abbie. "The Small Bang." In Typological Studies in Language. John Benjamins Publishing Company, 2025. https://doi.org/10.1075/tsl.135.05han.

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Abstract Language isolates, often viewed as remnants of past linguistic diversity, are predominantly spoken at the edges of dominant linguistic areas. This study explores the origins of the Bangime isolate and its Bangande speakers. By correlating loan words associated with agriculture with interdisciplinary data, the paper focuses on West African crops like millet and sorghum to suggest a Bangande migration timeline. This research contributes to a study on the origins of loan words for plants and animals linked to their domestication in West Africa. Preliminary results indicate a link between
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Dey, Susmita, Dola Das, and Arijit Chakraborty. "Migration." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-47829-6_914-1.

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Dey, Susmita, Dola Das, and Arijit Chakraborty. "Migration." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-55065-7_914.

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Viljoen, G. J., A. G. Luckins, and I. Naletoski. "Animal Migration Tracking Methods." In Stable Isotopes to Trace Migratory Birds and to Identify Harmful Diseases. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28298-5_2.

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Zupanc, Günther K. H. "Large-scale navigation: Migration and homing." In Behavioral Neurobiology. Oxford University Press, 2019. http://dx.doi.org/10.1093/hesc/9780198738725.003.0011.

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This chapter focuses on long-distance migrations of animals, introducing some key concepts of these phenomena. It discusses different modes of migration and briefly reviews previous experiments on the genetic control of migratory behavior. The chapter also explains homing, or the ability of an animal to specifically return to the place it considers home. Then it takes a closer look at the general methods used to study animal migration, including the use of tags, radar, and microtransmitters, and satellite-based radiotelemetry. Moreover, the chapter provides a detailed discussion of the behavio
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Conference papers on the topic "Animals, Migration of"

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Movila, Alexandru. "Role of macrophage migration inhibitory factor (MIF) in bacterial-induced inflammatory osteolysis." In International symposium ”Functional ecology of animals” dedicated to the 70th anniversary from the birth of academician Ion Toderas. Institute of Zoology, Republic of Moldova, 2019. http://dx.doi.org/10.53937/9789975315975.53.

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Dalby Kristensen, S., K. M. Roberts, J. Lawry, and J. F. Martin. "SHORT TERM HIGH CHOLESTEROL DIET CAUSES CHANGES IN MEGAKARYOCYTE SIZE AND IN VASCULAR ULTRASTRUCTURE." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643411.

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Platelets produced by megakaryocytes (MK) have a role in atherogenesis. Six pairs of male litter mate rabbits were randomised to feeding with either 2g of cholesterol daily in addition to their normal diet or normal diet alone. After seven days the animals were killed and serum cholesterol, platelet count, MK total, cytoplasmic and nuclear area (microscopic planimetry) and MK DNA content cell distribution (fluorescent activated cell sorting) were measured and compared between the two groups. The results are given in the table as medians with range values in brackets.After perfusion-fixation th
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Bulat, Denis, Dumitru Bulat, Marin Usatii, et al. "Particularităţile ihtiofaunei în zona Amonte-Aval de barajul Dubăsari." In International symposium ”Functional ecology of animals” dedicated to the 70th anniversary from the birth of academician Ion Toderas. Institute of Zoology, Republic of Moldova, 2019. http://dx.doi.org/10.53937/9789975315975.72.

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The purpose of this paper is to analyze the taxonomic structure and ecological indices of the fish communities in two types of aquatic ecosystems separated by the Dubasari Dam. The carried out research revealed a richer specific diversity and significantly higher quantitative values of fishing communities in the downstream area of the hydro power plant. The decisive factor is the fragmentation of the Dniester River, causing the interruption of reproductive, trophic and winter migration of reobionticfish species.
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Đurić, Boban, Živko Matijević, and Dragana Dimitrijević. "Integrated "one health" approach in the cooperation of human and veterinary medicine in Serbia for the prevention, monitoring, and control of zoonoses." In Proceedings of the International Congress Public Health - Achievements and Challenges. Institute of Public Health of Serbia "Dr Milan Jovanović Batut", 2024. http://dx.doi.org/10.5937/batutphco24217d.

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The "One Health" concept represents an integrated approach that emphasizes the necessity of multisectoral cooperation to achieve optimal health outcomes by recognizing the interconnection between human, animal, and environmental health. In the context of zoonoses, this approach involves the joint efforts of human and veterinary medicine, as well as other relevant sectors, in the prevention, monitoring, and control of these diseases. The cooperation between the human and veterinary sectors in Serbia is demonstrated through the coordinated activities of the Veterinary Directorate and the Institu
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Сыроватко, А. С., and В. П. Гусева. "A NEW FORM OF FUNE RAL RITES IN THE SOKOLOVA PUSTYN’: THE GREAT MIGRATION PERIOD OR THE “DARK AGES”?" In Материалы 23–25-го заседаний научно-методического семинара «Тверская земля и сопредельные территории в древности». Crossref, 2024. https://doi.org/10.70203/4989.2024.19.38.029.

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В статье публикуются материалы исследования двух погребений. Это кремации, захороненные на могильнике Соколова Пустынь 2 второй половины X – начала XI в. н. э. (левый берег р. Оки, возле г. Ступино). Погребение 21 типично для периферии могильника: небольшая порция костей была уложена на древнюю поверхность или в небольшую ямку. Инвентарь отсутствовал. Погребение 20 представляло собой редкий тип кремации в глубокой яме. Артефакты из ямы относятся к слою мощинской культуры (III–V вв. н. э.) и перекрывают погребение. Связь вещевого инвентаря и керамики с костями не выявлена. В обоих погребениях у
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Mallants, Dirk, Diederik Jacques, and Theo Zeevaert. "Modelling 226Ra, 222Rn, and 210Pb Migration in a Proposed Surface Repository of Very Low-Level Long-Lived Radioactive Waste." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4632.

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A generic concept for disposal of very low-level long-lived radioactive waste is currently being evaluated for radium bearing wastes that originated from a historical radium extraction plant at Olen, Belgium. A total volume of approximately 217 000 m3 of waste with an average radium content of 7 Bq/g has to be disposed of. Upon request by the Belgian National Agency for Management of Radioactive Waste and Nuclear Fuels, NIRAS/ONDRAF, a generic disposal concept was evaluated for the purpose of identifying the minimum disposal concept which guarantees long term safety. Such an analysis would pro
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AbdalKhabir Ali, Ali, and Hajar Salah Auda. "The effect of marsh draining on biodiversity." In Peacebuilding and Genocide Prevention. University of Human Development, 2021. http://dx.doi.org/10.21928/uhdicpgp/64.

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"The marsh represents a rare natural environment of its kind for a number of reasons. First, the marshes were the cradle of the Sumerian civilization and an environment that embraces a unique biodiversity. Its geography and vast area, which is equivalent to the size of a country like Lebanon, made it a resting place and provided food and reproduction for migratory birds. It is worthy of being included in the World Heritage List as one of the treasures of the world that must be preserved, but unfortunately, the Iraqi marshes have not been subjected throughout history to extensive and systematic
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Espinosa, Gabriela, Lisa Bennett, William Gardner, and Jessica Wagenseil. "The Effects of Extracellular Matrix Protein Insufficiency and Treatment on the Stiffness of Arterial Smooth Muscle Cells." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14131.

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Increased arterial stiffness is directly correlated with hypertension and cardiovascular disease. Stiffness of the conducting arteries is largely determined by the extracellular matrix (ECM) proteins in the wall, such as collagen and elastin, produced by the smooth muscle cells (SMCs) found in the medial layer. Elastin is deposited as soluble tropoelastin and is later crosslinked into elastin fibers. Newborn mice lacking the elastin protein ( Eln−/−) have increased arterial wall stiffness and SMCs with altered proliferation, migration and morphology [1]. Vessel elasticity is also mediated by o
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Devaraj, B., K. Fukuchi, Y. Watanabe, et al. "Laser Computed Tomographic Images of Bones and Teeth by Coherent Detection Imaging in the Visible and Near-IR Regions." In Advances in Optical Imaging and Photon Migration. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/aoipm.1996.cit214.

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The coherent detection imaging method that is based on the optical heterodyne detection technique is used to obtain laser computed tomographic images of animal bones and human teeth in the visible and near-IR regions. The image contrast is shown to be wavelength dependent. Laser tomographic images of a tooth pathological condition also confirms a wavelength dependent difference in structure and contrast. Use of green light along with red or near-IR light is suggested as a potential for hard tissues imaging in vivo.
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Boppart, Stephen A., Gary J. Tearney, Brett E. Bouma, James G. Fujimoto, and Mark E. Brezinski. "Optical Coherence Tomography of Embryonic Morphology During Cellular Differentiation." In Advances in Optical Imaging and Photon Migration. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/aoipm.1996.cit231.

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Improved imaging of morphological changes has the potential of offering new insight into the complex process of embryonic development. Optical coherence tomography (OCT), is a new imaging technique for performing in vivo cross-sectional imaging of architectural morphology by measuring backscattered infrared light. This study investigates the application of OCT for imaging developing structure in Xenopus laevis (African frog) and Brachydanio rerio (zebra fish), two developmental biology animal models. Images are compared to corresponding histological preparations. Cross sectional imaging can be
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Reports on the topic "Animals, Migration of"

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Murshid, K. A. S. Food Security in an Asian Transitional Economy: The Cambodian Experience. Cambodia Development Resource Institute, 1998. https://doi.org/10.64202/wp.06.199812.

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This working paper details the results of a study carried out from 1996 to 1997 of 244 households in three villages selected for their contrasting characteristics. One is in a rice surplus area of Prey Veng province; the second, in Kompong Speu province, is in a drought-prone area subject to violent fluctuations in rice production; the third, on the banks of the Mekong River in Kandal province, is primarily a fishing village, but with rice and reed production as additional sources of employment and income. The study therefore covers a range of agroecological and socio-economic conditions repre
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Gage, Edward, Linda Zeigenfuss, Hanem Abouelezz, Allison Konkowski, David Cooper, and Therese Johnson. Vegetation response to Rocky Mountain National Park’s elk and vegetation management plan: Analysis of 2008–2018 data. National Park Service, 2023. http://dx.doi.org/10.36967/2299264.

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Rocky Mountain National Park (RMNP) developed the Elk and Vegetation Management Plan (EVMP) to address well-documented declines in the ecological condition of aspen stands and riparian communities from high levels of elk herbivory. The EVMP aims to reduce the impacts of elk on vegetation and restore the natural range of variability in the elk population and affected plant communities, including preventing the loss of aspen clones within high elk-use areas, restoring montane riparian willow cover and height within suitable habitat, and reducing of levels of elk grazing on herbaceous vegetation.
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Wexler, Margaret, Alice Di Pasquale, and Hannah Moody. PFAS (perfluoroalkyl and polyfluoroalkyl substances) and breast cancer. Breast Cancer UK, 2024. https://doi.org/10.71450/42501116.

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PFAS comprise a large class of synthetic compounds that contain carbon-fluorine bonds. They have heat-resistant, non-stick and water-repellent properties and are used widely in food packaging, textiles, non-stick cookware, cosmetics and fire-fighting foam. They degrade very slowly and are distributed globally. PFAS are found in body fluids and tissues, for example, blood, breast milk and placenta. They are associated with many health problems, including cancer, and may increase breast cancer risk. Animal studies have shown that PFAS exposure may increase the risk of mammary tumours, and in ute
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Jungsberg, Leneisja, and Diana N. Huynh. Young Voices from the Arctic: Insights on Climate Change and Permafrost Degradation. Nordregio, 2023. http://dx.doi.org/10.6027/wp2023:61403-2511.

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The Arctic region is warming almost four times as fast as the global average. Snow and ice are thawing at an increasing rate, and the rapid environmental shifts have a disproportionate effect on communities across the Northern Hemisphere. This leads to significant permafrost degradation, which disrupts community infrastructure, cultural heritage, landscapes, and impacts animal migration and subsistence activities. This change has severe consequences for the youth in the region, affecting their present lives and future outlooks. This working paper emphasizes the importance of addressing these i
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Loso, Michael, and Michael Loso. Glacier monitoring in the Central Alaska Network: Protocol narrative, version 1.0. National Park Service, 2025. https://doi.org/10.36967/2308209.

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Two of the three national parks that comprise the National Park Service Inventory &amp; Monitoring Program?s Central Alaska Network (CAKN) are covered by large quantities of glacier ice. Wrangell-St. Elias National Park and Preserve has 3,121 glaciers and Denali National Park and Preserve has 881. These glaciers cover significant portions of the parks and exert substantial influence over the surrounding landscapes with impacts on weather, vegetation, animal migration, river flow, aquatic life, and even downstream marine ecosystems. They also provide a significant attraction?and hazard?for visi
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Shani, Moshe, and C. P. Emerson. Genetic Manipulation of the Adipose Tissue via Transgenesis. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7604929.bard.

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The long term goal of this study was to reduce caloric and fat content of beef and other red meats by means of genetic modification of the animal such that fat would not be accumulated. This was attempted by introducing into the germ line myogenic regulatory genes that would convert fat tissue to skeletal muscle. We first determined the consequences of ectopic expression of the myogenic regulatory gene MyoD1. It was found that deregulation of MyoD1 did not result in ectopic skeletal muscle formation but rather led to embryonic lethalities, probably due to its role in the control of the cell cy
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Sources and migration pathways of natural gas in near-surface ground water beneath the Animas River valley, Colorado and New Mexico. US Geological Survey, 1994. http://dx.doi.org/10.3133/wri944006.

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