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Journal articles on the topic 'Migratory path'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

van der Wiele, A., A. R. T. Williams, and B. G. Dale. "ISO 9000 series registration to business excellence: the migratory path." Business Process Management Journal 6, no. 5 (2000): 417–27. http://dx.doi.org/10.1108/14637150010353911.

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2

Mueller, Thomas, Robert B. O’Hara, Sarah J. Converse, Richard P. Urbanek, and William F. Fagan. "Social Learning of Migratory Performance." Science 341, no. 6149 (2013): 999–1002. http://dx.doi.org/10.1126/science.1237139.

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Successful bird migration can depend on individual learning, social learning, and innate navigation programs. Using 8 years of data on migrating whooping cranes, we were able to partition genetic and socially learned aspects of migration. Specifically, we analyzed data from a reintroduced population wherein all birds were captive bred and artificially trained by ultralight aircraft on their first lifetime migration. For subsequent migrations, in which birds fly individually or in groups but without ultralight escort, we found evidence of long-term social learning, but no effect of genetic rela

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3

Yamauchi, A., and Y. Matsumiya. "Population dynamics and fishery policy for migratory resources with two migration paths." Canadian Journal of Fisheries and Aquatic Sciences 54, no. 10 (1997): 2303–13. http://dx.doi.org/10.1139/f97-137.

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The population dynamics and fishery policy for a migratory resource with two migration paths are analyzed, based on the supposition that the resource separates into two groups, each migrating along and caught on a different path, after reproduction in a limited area. Two possible mechanisms determining individual migration paths are considered: (i) ``nongenetically controlled'' migration and (ii) ``genetically controlled'' migration. Initially, the relationships between the resource population dynamics and the fishery are analyzed for both these cases. Based on these results, the optimal fishe

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Jin, Hao, Jin Xu, and Zilong Wen. "Migratory path of definitive hematopoietic stem/progenitor cells during zebrafish development." Blood 109, no. 12 (2007): 5208–14. http://dx.doi.org/10.1182/blood-2007-01-069005.

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Abstract The development of vertebrate definitive hematopoiesis is featured by temporally and spatially dynamic distribution of hematopoietic stem/progenitor cells (HSPCs). It is proposed that the migration of definitive HSPCs, at least in part, accounts for this unique characteristic; however, compelling in vivo lineage evidence is still lacking. Here we present an in vivo analysis to delineate the migration route of definitive HSPCs in the early zebrafish embryo. Cell-marking analysis was able to first map definitive HSPCs to the ventral wall of dorsal aorta (DA). These cells were subsequent

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Erickson, C. A., and T. L. Goins. "Avian neural crest cells can migrate in the dorsolateral path only if they are specified as melanocytes." Development 121, no. 3 (1995): 915–24. http://dx.doi.org/10.1242/dev.121.3.915.

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Neural crest cells are conventionally believed to migrate arbitrarily into various pathways and to differentiate according to the environmental cues that they encounter. We present data consistent with the notion that melanocytes are directed, by virtue of their phenotype, into the dorsolateral path, whereas other neural crest derivatives are excluded. In the avian embryo, trunk neural crest cells that migrate ventrally differentiate largely into neurons and glial cells of the peripheral nervous system. Neural crest cells that migrate into the dorsolateral path become melanocytes, the pigment

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6

Wang, Rui, and Zai Tang Wang. "Path Planning for Mobile Robot Based on Improved Ant Colony Algorithm." Applied Mechanics and Materials 385-386 (August 2013): 717–20. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.717.

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This paper presents a dynamic path planning method based on improved ant colony algorithm. In order to increasing the algorithm’s convergence speed and avoiding to fall into local optimum, we propose adaptive migratory probability function and updating the pheromone. We apply the improved algorithm to path planning for mobile robot and the simulation experiment proved that improved algorithm is viable and efficient.

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Laszlo, Viktoria, Mir Alireza Hoda, Tamas Garay та ін. "Epigenetic down-regulation of integrin α7 increases migratory potential and confers poor prognosis in malignant pleural mesothelioma". Journal of Pathology 237, № 2 (2015): 203–14. http://dx.doi.org/10.1002/path.4567.

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8

Jenner, K. C. S., M.-N. M. Jenner, and K. A. McCabe. "GEOGRAPHICAL AND TEMPORAL MOVEMENTS OF HUMPBACK WHALES IN WESTERN AUSTRALIAN WATERS." APPEA Journal 41, no. 1 (2001): 749. http://dx.doi.org/10.1071/aj00044.

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Through compilation of historical whaling data, together with recent aerial and boat-based survey data, a general framework for the overall peaks of migration has been estimated for the temporal and spatial movements of Group IV humpback whales along the Western Australian coast.The migratory paths of humpback whales along the Western Australian coast lie within the continental shelf boundary or 200 m bathymetry. Major resting areas along the migratory path have been identified at Exmouth Gulf (southern migration only) and at Shark Bay. The northern endpoint of migration and resting area for r

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Syartinilia, Risco Noverio Rafael, and Hiroyoshi Higuchi. "Perilaku Migrasi Sikep Madu-Asia dalam Pemanfaatan Lanskap di Flores Bagian Timur, Indonesia Berdasarkan Data Satellite-tracking." Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 10, no. 3 (2020): 479–88. http://dx.doi.org/10.29244/jpsl.10.3.479-488.

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Raptor migration is complex phenomenon of migration which involving of millions of individual birds flying hundreds or thousands kilometers, between breeding habitat and wintering habitat. Migratory behavior consisted of period, route, and other aspects that affect the ecology of migratory birds. Pernis ptylorhynchus, Oriental honey-buzzard (OHB) is one of migratory raptors which have satellite tracked by ARGOS since 2003. Eastern part of Flores Islands consisted of small islands (23 islands) were identified as OHB’s migratory path to reach their wintering habitats in Kupang and Timor Island.

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10

Jia, Yifei, Yunzhu Liu, Shengwu Jiao, et al. "Shifting of the Migration Route of White-Naped Crane (Antigone vipio) Due to Wetland Loss in China." Remote Sensing 13, no. 15 (2021): 2984. http://dx.doi.org/10.3390/rs13152984.

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In the last 15 years, the west population of white-naped crane (Antigone vipio) decreased dramatically despite the enhanced conservation actions in both breeding and wintering areas. Recent studies highlighted the importance of protecting the integrity of movement connectivity for migratory birds. Widespread and rapid landcover changes may exceed the adaptive capacity of migrants, leading to the collapse of migratory networks. In this study, using satellite tracking data, we modeled and characterized the migration routes of the white-naped crane at three spatial levels (core area, migratory co

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Tod, Jo, Christopher J. Hanley, Mark R. Morgan та ін. "Pro-migratory and TGF-β-activating functions of αvβ6 integrin in pancreatic cancer are differentially regulated via an Eps8-dependent GTPase switch". Journal of Pathology 243, № 1 (2017): 37–50. http://dx.doi.org/10.1002/path.4923.

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12

Murrell, K. Darwin, Lis Eriksen, Peter Nansen, H. C. Slotved, and Tina Rasmussen. "Ascaris suum: A Revision of Its Early Migratory Path and Implications for Human Ascariasis." Journal of Parasitology 83, no. 2 (1997): 255. http://dx.doi.org/10.2307/3284450.

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13

Rosen, Meghan. "Life: Chilly temps turn monarchs north: Butterflies' migratory path flipped by exposure to cold." Science News 183, no. 6 (2013): 8. http://dx.doi.org/10.1002/scin.5591830604.

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14

Dias, Maria P., José P. Granadeiro, and Paulo Catry. "Individual variability in the migratory path and stopovers of a long-distance pelagic migrant." Animal Behaviour 86, no. 2 (2013): 359–64. http://dx.doi.org/10.1016/j.anbehav.2013.05.026.

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15

Beauvais, A., C. A. Erickson, T. Goins, et al. "Changes in the fibronectin-specific integrin expression pattern modify the migratory behavior of sarcoma S180 cells in vitro and in the embryonic environment." Journal of Cell Biology 128, no. 4 (1995): 699–713. http://dx.doi.org/10.1083/jcb.128.4.699.

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The molecules that mediate cell-matrix recognition, such as fibronectins (FN) and integrins, modulate cell behavior. We have previously demonstrated that FN and the beta 1-integrins are used during neural crest cell (NCC) migration in vitro as well as in vivo, and that the FN cell-binding domains I and II exhibit functional specificity in controlling either NCC attachment, spreading, or motility in vitro. In the present study, we have analyzed the effect of changes in the integrin expression patterns on migratory cell behavior in vivo. We have generated, after stable transfection, S180 cells e

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Studer, Michèle. "Initiation of facial motoneurone migration is dependent on rhombomeres 5 and 6." Development 128, no. 19 (2001): 3707–16. http://dx.doi.org/10.1242/dev.128.19.3707.

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In mammals, facial branchiomotor (FBM) neurones are born in ventral rhombomere (r) 4 and migrate through r5 to dorsal r6 where they form the facial motor nucleus. This pattern of migration gives rise to the distinctive appearance of the internal genu of the facial nerve, which is lacking in birds. To distinguish between extrinsic cues and intrinsic factors in the caudal migration of FBM neurones, this study takes advantage of the evolutionary migratory difference between mouse and chick in generating mouse-chick chimaeras in ovo. After the homotopic transplantation of mouse r5 and/or r6 into a

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Matsyura, О. V. "ПОПЕРЕДНІ РЕЗУЛЬТАТИ РАДАРНИХ СПОСТЕРЕЖЕНЬ НІЧНОЙ МІГРАЦІЇ ПТАХІВ В ІЗРАЇЛІ". Biological Bulletin of Bogdan Chmelnitskiy Melitopol State Pedagogical University 1, № 02 (2011): 93. http://dx.doi.org/10.15421/20111_28.

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<p>The results of radar-tracking supervisions over the night migration in Israel are submitted. The determination of flight altitudes, flight speeds, heights of maximum birds’ concentration, and migratory directions was performed. The average flight altitudes of night migration were 985 m in autumn and 1465 m in spring of 1998-2000, maximum flight altitudes were 2068 m and 2655 m correspondingly. The mean track direction of the night bird migration is 183° in spring and 6° in autumn. The migration of waterfowl over the Mediterranean Sea in the low altitude band was registered. Their aver

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Kato, Mihoko, Irina Kolotuev, Alexandre Cunha, Shahla Gharib, and Paul W. Sternberg. "Extrasynaptic acetylcholine signaling through a muscarinic receptor regulates cell migration." Proceedings of the National Academy of Sciences 118, no. 1 (2020): e1904338118. http://dx.doi.org/10.1073/pnas.1904338118.

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Acetylcholine (ACh) promotes various cell migrations in vitro, but there are few investigations into this nonsynaptic role of ACh signaling in vivo. Here we investigate the function of a muscarinic receptor on an epithelial cell migration in Caenorhabditis elegans. We show that the migratory gonad leader cell, the linker cell (LC), uses an M1/M3/M5-like muscarinic ACh receptor GAR-3 to receive extrasynaptic ACh signaling from cholinergic neurons for its migration. Either the loss of the GAR-3 receptor in the LC or the inhibition of ACh release from cholinergic neurons resulted in migratory pat

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Perocco, Fabio. "Torture against migrants: A structural and global phenomenon, and its social roots." WELFARE E ERGONOMIA, no. 2 (January 2021): 50–64. http://dx.doi.org/10.3280/we2020-002005.

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The article examines the relationship between torture and migration, highlighting how torture has become a structural element of the migratory experience in the majority of the world; sometimes torture is the cause for departure, it is a frequent experience along the migratory path, it is a reality that migrants are sometimes forced to confront in receiving countries. This is specifically the result of the convergence between the amplification of torture (the "torture crisis") and the worsening of the conditions of migration (the "war on migrants"). The article analyzes the different factors u

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Tattoni, Clara, and Marco Ciolli. "Analysis of Bird Flyways in 3D." ISPRS International Journal of Geo-Information 8, no. 12 (2019): 535. http://dx.doi.org/10.3390/ijgi8120535.

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Bird migration is a long studied phenomenon that involves animals moving back and forth from wintering sites and to reproductive grounds. Several studies have focused on identifying the timing, physiology and evolution of migration, but a spatial approach to understand the migratory routes is still an open challenge. Geographic Information Systems (GIS) can provide the tools to explore such a complicated issue. Birds usually move from the wintering sites to spring breeding grounds in multiple flights, stopping at intermediate sites to rest and refuel, being unable to cover the distance in a si

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Revollo, H. W., and A. Qureshi. "Accounting for Variations in Acculturative Stress: Coping and Appraisal." European Psychiatry 24, S1 (2009): 1. http://dx.doi.org/10.1016/s0924-9338(09)71494-4.

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Acculturative stress is increasingly understood to mediate the relationship between immigration and mental health. The bullk of research in this area, however, has not addressed psychological factors that affect the degree to which the migratory process is experienced as stressful nor what sorts of strategies are used to manage stressors related to migration. The appraisal of a situation as stressful is related to the material, social and psychological resources. Coping style can mediate the psychological impact of the stressor. It would appear that the relationship between stress and coping i

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22

Leal-Egaña, Aldo, Gaelle Letort, Jean-Louis Martiel, et al. "The size-speed-force relationship governs migratory cell response to tumorigenic factors." Molecular Biology of the Cell 28, no. 12 (2017): 1612–21. http://dx.doi.org/10.1091/mbc.e16-10-0694.

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Tumor development progresses through a complex path of biomechanical changes leading first to cell growth and contraction and then cell deadhesion, scattering, and invasion. Tumorigenic factors may act specifically on one of these steps or have a wider spectrum of actions, leading to a variety of effects and thus sometimes to apparent contradictory outcomes. Here we used micropatterned lines of collagen type I/fibronectin on deformable surfaces to standardize cell behavior and measure simultaneously cell size, speed of motion and magnitude of the associated traction forces at the level of a si

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BOWONG, SAMUEL, JEAN JULES TEWA, and JURGEN KURTHS. "DYNAMICS OF THE SPREAD OF TUBERCULOSIS IN HETEROGENEOUS COMPLEX METAPOPULATIONS." International Journal of Bifurcation and Chaos 23, no. 07 (2013): 1350128. http://dx.doi.org/10.1142/s0218127413501289.

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This paper analyzes the dynamics of the spread of tuberculosis (TB) on complex metapopulation, that is, networks of populations connected by migratory flows whose configurations are described in terms of connectivity distribution of nodes (patches) and the conditional probabilities of connections among classes of nodes sharing the same degree. The migration and transmission processes occur simultaneously. For uncorrelated networks, we give a necessary and sufficient condition for the instability of the disease-free equilibrium. The existence of endemic equilibria is also discussed. Finally, th

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Gorsky, Dimitry, Joan Trial, Joseph Zydlewski, and James McCleave. "The Effects of Smolt Stocking Strategies on Migratory Path Selection of Adult Atlantic Salmon in the Penobscot River, Maine." North American Journal of Fisheries Management 29, no. 4 (2009): 949–57. http://dx.doi.org/10.1577/m08-068.1.

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Biddlecombe, BA, EM Bayne, NJ Lunn, D. McGeachy, and AE Derocher. "Effects of sea ice fragmentation on polar bear migratory movement in Hudson Bay." Marine Ecology Progress Series 666 (May 20, 2021): 231–41. http://dx.doi.org/10.3354/meps13684.

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Habitat fragmentation can impede an animal’s ability to move through their habitat, affecting both local and long-distance movements. Each year, polar bears Ursus maritimus migrate to refuge habitats on land or to multiyear ice as annual sea ice breaks up. We used polar bear telemetry location data from 39 adult female polar bears tracked in Hudson Bay in 2013-2018 during break-up (2 May-23 July) to show variation in migratory movement and timing as break-up advances. We separated break-up into early and late periods and used standard deviation in temporal spatial autocorrelation (SASD) of sea

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Meyerink, Brandon L., Neeraj K. Tiwari, and Louis-Jan Pilaz. "Ariadne’s Thread in the Developing Cerebral Cortex: Mechanisms Enabling the Guiding Role of the Radial Glia Basal Process during Neuron Migration." Cells 10, no. 1 (2020): 3. http://dx.doi.org/10.3390/cells10010003.

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Radial neuron migration in the developing cerebral cortex is a complex journey, starting in the germinal zones and ending in the cortical plate. In mice, migratory distances can reach several hundreds of microns, or millimeters in humans. Along the migratory path, radially migrating neurons slither through cellularly dense and complex territories before they reach their final destination in the cortical plate. This task is facilitated by radial glia, the neural stem cells of the developing cortex. Indeed, radial glia have a unique bipolar morphology, enabling them to serve as guides for neuron

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Wynn, Michelle L., Paul M. Kulesa, and Santiago Schnell. "Computational modelling of cell chain migration reveals mechanisms that sustain follow-the-leader behaviour." Journal of The Royal Society Interface 9, no. 72 (2012): 1576–88. http://dx.doi.org/10.1098/rsif.2011.0726.

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Follow-the-leader chain migration is a striking cell migratory behaviour observed during vertebrate development, adult neurogenesis and cancer metastasis. Although cell–cell contact and extracellular matrix (ECM) cues have been proposed to promote this phenomenon, mechanisms that underlie chain migration persistence remain unclear. Here, we developed a quantitative agent-based modelling framework to test mechanistic hypotheses of chain migration persistence. We defined chain migration and its persistence based on evidence from the highly migratory neural crest model system, where cells within

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Starz-Gaiano, M., N. K. Cho, A. Forbes, and R. Lehmann. "Spatially restricted activity of a Drosophila lipid phosphatase guides migrating germ cells." Development 128, no. 6 (2001): 983–91. http://dx.doi.org/10.1242/dev.128.6.983.

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Temporal and spatial controls of cell migration are crucial during normal development and in disease. Our understanding, though, of the mechanisms that guide cells along a specific migratory path remains largely unclear. We have identified wunen 2 as a repellant for migrating primordial germ cells. We show that wunen 2 maps next to and acts redundantly with the previously characterized gene wunen, and that known wunen mutants affect both transcripts. Both genes encode Drosophila homologs of mammalian phosphatidic acid phosphatase. Our work demonstrates that the catalytic residues of Wunen 2 ar

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Hainsworth, F. Reed. "Wing movements and positioning for aerodynamic benefit by Canada geese flying in formation." Canadian Journal of Zoology 67, no. 3 (1989): 585–89. http://dx.doi.org/10.1139/z89-084.

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Wing tip spacing (the distance between wing tips of adjacent birds at maximum span, perpendicular to the flight path), depth (distance between adjacent birds along the flight path), wing beat frequencies, and extreme relative wing positions were measured for Canada geese (Branta canadensis) flying in V formations to test for use of variation in trailing wing tip vortex positions produced by wing movements. Use of vertical vortex position variation requires similarity in wing beat frequency. An average of only 48% of 73 birds in eight formations had frequencies similar to those of the bird ahea

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Tweedy, Luke, Peter A. Thomason, Peggy I. Paschke, et al. "Seeing around corners: Cells solve mazes and respond at a distance using attractant breakdown." Science 369, no. 6507 (2020): eaay9792. http://dx.doi.org/10.1126/science.aay9792.

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During development and metastasis, cells migrate large distances through complex environments. Migration is often guided by chemotaxis, but simple chemoattractant gradients between a source and sink cannot direct cells over such ranges. We describe how self-generated gradients, created by cells locally degrading attractant, allow single cells to navigate long, tortuous paths and make accurate choices between live channels and dead ends. This allows cells to solve complex mazes efficiently. Cells’ accuracy at finding live channels was determined by attractant diffusivity, cell speed, and path c

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Santiago, Alicia, and Carol A. Erickson. "Ephrin-B ligands play a dual role in the control of neural crest cell migration." Development 129, no. 15 (2002): 3621–32. http://dx.doi.org/10.1242/dev.129.15.3621.

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Little is known about the mechanisms that direct neural crest cells to the appropriate migratory pathways. Our aim was to determine how neural crest cells that are specified as neurons and glial cells only migrate ventrally and are prevented from migrating dorsolaterally into the skin, whereas neural crest cells specified as melanoblasts are directed into the dorsolateral pathway. Eph receptors and their ephrin ligands have been shown to be essential for migration of many cell types during embryonic development. Consequently, we asked if ephrin-B proteins participate in the guidance of melanob

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Duddleston, Pate J., Julian L. Gendreau, Kristen A. Little, Amber Andrews, and Willard D. Thompson. "Navigation-guided neuroendoscopic removal of an intracranial migratory pellet from the thalamus of a 4-year-old girl." Journal of Neurosurgery: Pediatrics 26, no. 4 (2020): 445–48. http://dx.doi.org/10.3171/2020.4.peds19606.

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Extraction of a bullet fragment seated in deep brain parenchyma utilizing a neuroendoscope has not been previously reported in the literature. The authors report the case of a 4-year-old patient who presented after a pellet gun injury with a projectile located 6 cm intracranially and lodged within the posterior thalamus and near the posterior limb of the internal capsule. Initial operative repair included repair of a CSF leak with duraplasty, minimal brain debridement, and elevation of a depressed skull fracture. Subsequent CT at 2 months postoperatively revealed migration of the deep intracra

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Lin, Huai-Ti, Ivo G. Ros, and Andrew A. Biewener. "Through the eyes of a bird: modelling visually guided obstacle flight." Journal of The Royal Society Interface 11, no. 96 (2014): 20140239. http://dx.doi.org/10.1098/rsif.2014.0239.

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Various flight navigation strategies for birds have been identified at the large spatial scales of migratory and homing behaviours. However, relatively little is known about close-range obstacle negotiation through cluttered environments. To examine obstacle flight guidance, we tracked pigeons ( Columba livia ) flying through an artificial forest of vertical poles. Interestingly, pigeons adjusted their flight path only approximately 1.5 m from the forest entry, suggesting a reactive mode of path planning. Combining flight trajectories with obstacle pole positions, we reconstructed the visual e

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Nourani, Elham, Kamran Safi, Noriyuki M. Yamaguchi, and Hiroyoshi Higuchi. "Raptor migration in an oceanic flyway: wind and geography shape the migratory route of grey-faced buzzards in East Asia." Royal Society Open Science 5, no. 3 (2018): 171555. http://dx.doi.org/10.1098/rsos.171555.

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Flapping flight is relatively costly for soaring birds such as raptors. To avoid costly flight, migrating raptors generally avoid flying over water. As a result, all but one of the global raptor migration flyways are largely over land. The East Asian oceanic flyway for raptors is the exception. Raptor species using this flyway migrate by island-hopping, flying over open ocean for distances of up to 300 km between islands. We used satellite telemetry data for grey-faced buzzards Butastur indicus , a species that dominates the southern part of the flyway, to investigate the geographical and atmo

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Charmarkeh, Houssein. "Social Media Usage, Tahriib (Migration), and Settlement among Somali Refugees in France." Refuge: Canada's Journal on Refugees 29, no. 1 (2013): 43–52. http://dx.doi.org/10.25071/1920-7336.37505.

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Technologies are omnipresent in our society, from mobile telephone systems to satellite television and Internet broadcasting, which shape the way we live, work, and interact. They have also transformed the experience of international migration, making it possible for migrants to maintain strong ties between the host society and the home country. In this article, we examine the precarious situation lived by Somali refugees in France, and we explore their uses of social media during tahriib or their migratory path and settlement in three French cities. Th e fi rst section discusses the method on

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Lubart, Alisa, Amit Benbenishty, Hagai Har-Gil, et al. "Single Cortical Microinfarcts Lead to Widespread Microglia/Macrophage Migration Along the White Matter." Cerebral Cortex 31, no. 1 (2020): 248–66. http://dx.doi.org/10.1093/cercor/bhaa223.

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Abstract Loss of cognitive function with aging is a complex and poorly understood process. Recently, clinical research has linked the occurrence of cortical microinfarcts to cognitive decline. Cortical microinfarcts form following the occlusion of penetrating vessels and are considered to be restricted to the proximity of the occluded vessel. Whether and how such local events propagate and affect remote brain regions remain unknown. To this end, we combined histological analysis and longitudinal diffusion tensor imaging (DTI), following the targeted-photothrombotic occlusion of single cortical

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Wang, Xiaohong, Diane Meyers, Yitang Yan та ін. "In Planta Localization of a β-1,4-Endoglucanase Secreted by Heterodera glycines". Molecular Plant-Microbe Interactions® 12, № 1 (1999): 64–67. http://dx.doi.org/10.1094/mpmi.1999.12.1.64.

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Polyclonal sera specific to β-1,4-endoglucanases (cellulases) synthesized in the subventral esophageal gland cells of the soybean cyst nematode, Heterodera glycines, were used to provide the first identification of a nematode esophageal gland protein that is secreted into host plant tissue. Sera generated to proteins encoded by Hg-eng-1 and Hg-eng-2 (endoglucanases) did not cross-react with soybean root proteins on Western blots (immunoblots) or in immunofluorescence microscopy of noninoculated (control) soybean root sections. In cross sections of soybean roots at 24 h after inoculation of roo

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Latta, Steven C. "Effects of Scaley-Leg Mite Infestations on Body Condition and Site Fidelity of Migratory Warblers in The Dominican Republic." Auk 120, no. 3 (2003): 730–43. http://dx.doi.org/10.1093/auk/120.3.730.

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Abstract Rates of infestation by the scaley leg mite (Knemidokoptes jamaicensis) were examined on two overwintering Nearctic-Neotropical migrants, Palm Warbler (Dendroica palmarum) and Prairie Warbler (D. discolor), in low-elevation desert thorn scrub and high-elevation pine forest in the Dominican Republic. Ectoparasites were common on birds in the dry thorn scrub where birds roosted communally, but were never found on birds in the moister pine forest where communal roosting was not detected. Prevalence of ectoparasites varied between years and generally increased in prevalence within winters

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Babcock, Esther, Chris Nettels, and Peter Beardsley. "Assessment of the transport mechanism at a hydrocarbon spill site using geophysical, geologic, and geotechnical techniques." Interpretation 3, no. 4 (2015): SAB1—SAB7. http://dx.doi.org/10.1190/int-2015-0048.1.

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An accidental hydrocarbon release into a residential water well provides a case study for an assessment of the transport mechanism of a hydrocarbon in an alluvial depositional geologic setting. Due to the failure of initial results to recover the injected hydrocarbon in nearby wells, we collected ground-penetrating radar (GPR) data, soil samples, and soil conductivity logs throughout the site with the following objectives: (1) to understand the geologic setting, and (2) to identify the migratory path of the contaminant in the subsurface. Integrated interpretation of the GPR data, soil samples,

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Perzanowski, Kajetan, Katarzyna Pędziwiatr, Paulina Konieczna, and Jan Śmiełowski. "Proposed migration corridors for large mammals in the south-east of Polish Carpathians." Zoology and Ecology 30, no. 30 (2020): 63–72. http://dx.doi.org/10.35513/21658005.2020.1.9.

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The aim of the study was the delineation of migratory corridors migration for large mammals between the Ukrainian Carpathians and the western part of their range in Poland. Potential corridors for the wolf (Canis lupus), brown bear (Ursus arctos), lynx (Lynx lynx), wisent (Bison bonasus), red deer (Cervus elaphus), and wild boar (Sus scrofa) were identified within 534,818 ha with the ArcGIS Corridor Designer software. Corridors of regional importance (42,283 ha in total) and local connections between habitat patches (13,154 ha) were delineated separately according to the least-cost path criter

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Kerlinger, Paul, Verner P. Bingman, and Kenneth P. Able. "Comparative flight behaviour of migrating hawks studied with tracking radar during autumn in central New York." Canadian Journal of Zoology 63, no. 4 (1985): 755–61. http://dx.doi.org/10.1139/z85-110.

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Tracking radar with simultaneous visual observations was employed to study the flight behaviour of nine species of hawks during autumn migration, 1978–1979, in central New York. The predominant mode of flight for all species was thermal soaring and interthermal gliding. Although most species were seen in small flocks at some time, only Broad-winged Hawks (Buteo platypterus) could be considered flocking migrants, with most migrating in flocks < 40 individuals. Altitude of flight increased through the day as convective depth developed, with approximately 85% of all individuals flying below 10

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Edgar, Lowell T., Claudio A. Franco, Holger Gerhardt, and Miguel O. Bernabeu. "On the preservation of vessel bifurcations during flow-mediated angiogenic remodelling." PLOS Computational Biology 17, no. 2 (2021): e1007715. http://dx.doi.org/10.1371/journal.pcbi.1007715.

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During developmental angiogenesis, endothelial cells respond to shear stress by migrating and remodelling the initially hyperbranched plexus, removing certain vessels whilst maintaining others. In this study, we argue that the key regulator of vessel preservation is cell decision behaviour at bifurcations. At flow-convergent bifurcations where migration paths diverge, cells must finely tune migration along both possible paths if the bifurcation is to persist. Experiments have demonstrated that disrupting the cells’ ability to sense shear or the junction forces transmitted between cells impacts

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Harms, N. Jane, Pierre Legagneux, H. Grant Gilchrist, et al. "Feather corticosterone reveals effect of moulting conditions in the autumn on subsequent reproductive output and survival in an Arctic migratory bird." Proceedings of the Royal Society B: Biological Sciences 282, no. 1800 (2015): 20142085. http://dx.doi.org/10.1098/rspb.2014.2085.

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For birds, unpredictable environments during the energetically stressful times of moulting and breeding are expected to have negative fitness effects. Detecting those effects however, might be difficult if individuals modulate their physiology and/or behaviours in ways to minimize short-term fitness costs. Corticosterone in feathers (CORTf) is thought to provide information on total baseline and stress-induced CORT levels at moulting and is an integrated measure of hypothalamic–pituitary–adrenal activity during the time feathers are grown. We predicted that CORTf levels in northern common eide

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Smith, David. "Roma migration, anti-migrant sentiment and social integration: A case study in South-east England." Local Economy: The Journal of the Local Economy Policy Unit 33, no. 2 (2018): 187–206. http://dx.doi.org/10.1177/0269094218766456.

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This article explores the settlement and residential patterns of Slovakian Roma migrants in Chatham, Kent where a significant number have been moving since the mid-2000s. This process is analysed in the context of growing hostility to European Union migrants and of fundamental changes to the local economy, labour markets, social and demographic structures and of growing neighbourhood polarisation. Vertovec’s ( 2006 ) notion of ‘hyper-diversity’ is used to frame the analysis allowing for a shift away from homogenising categories that conceive of Roma as being qualitatively ‘different’ to other

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Vega-Muñoz, Alejandro, Paloma Gónzalez-Gómez-del-Miño, and Juan Felipe Espinosa-Cristia. "Recognizing New Trends in Brain Drain Studies in the Framework of Global Sustainability." Sustainability 13, no. 6 (2021): 3195. http://dx.doi.org/10.3390/su13063195.

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Scholars had been documenting the Brain Drain phenomenon producing scientific literature for more than 50 years. After three decades of slow but steady progress, literature about this concept has accelerated its progress and growth path, in line with the 9th sustainable development goal “Build resilient infrastructure, promote sustainable industrialization and foster innovation” Thus, the present article aims to define the current theoretical trends about the analysis of advanced intellectual human capital’s international migratory phenomenon. This study uses a scientometric methodology on a c

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Hobson, Keith A. "Using endogenous and exogenous markers in bird conservation." Bird Conservation International 18, S1 (2008): S174—S199. http://dx.doi.org/10.1017/s0959270908000361.

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AbstractUnderstanding how avian populations are structured spatially and temporally is fundamental to their effective conservation. Protecting migratory species in one jurisdiction or period of the annual cycle may be ineffective if they periodically move to areas where they are not protected or are exposed to factors that limit populations or cause their decline. Unfortunately, for most species, our understanding of connectivity between breeding, wintering or stopover sites during the annual cycle are poorly understood and there is an urgent need to define such connections in order to achieve

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Ahmed, Zeeshan, Saman Zeeshan, Pauline Fleischmann, Wolfgang Rössler, and Thomas Dandekar. "Ant-App-DB: a smart solution for monitoring arthropods activities, experimental data management and solar calculations without GPS in behavioral field studies." F1000Research 3 (December 19, 2014): 311. http://dx.doi.org/10.12688/f1000research.5931.1.

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Field studies on arthropod ecology and behaviour require simple and robust monitoring tools, preferably with direct access to an integrated database. We have developed and here present a database tool allowing smart-phone based monitoring of arthropods. This smart phone application provides an easy solution to collect, manage and process the data in the field which has been a very difficult task for field biologists using traditional methods. To monitor our example species, the desert ant Cataglyphis fortis, we considered behavior, nest search runs, feeding habits and path segmentations includ

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Ahmed, Zeeshan, Saman Zeeshan, Pauline Fleischmann, Wolfgang Rössler, and Thomas Dandekar. "Ant-App-DB: a smart solution for monitoring arthropods activities, experimental data management and solar calculations without GPS in behavioral field studies." F1000Research 3 (April 10, 2015): 311. http://dx.doi.org/10.12688/f1000research.5931.2.

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Field studies on arthropod ecology and behaviour require simple and robust monitoring tools, preferably with direct access to an integrated database. We have developed and here present a database tool allowing smart-phone based monitoring of arthropods. This smart phone application provides an easy solution to collect, manage and process the data in the field which has been a very difficult task for field biologists using traditional methods. To monitor our example species, the desert ant Cataglyphis fortis, we considered behavior, nest search runs, feeding habits and path segmentations includ

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McCauley, R. D., M.-N. Jenner, C. Jenner, K. A. McCabe, and J. Murdoch. "THE RESPONSE OF HUMPBACK WHALES (MEGAPTERA NOVAEANGLIAE) TO OFFSHORE SEISMIC SURVEY NOISE: PRELIMINARY RESULTS OF OBSERVATIONS ABOUT A WORKING SEISMIC VESSEL AND EXPERIMENTAL EXPOSURES." APPEA Journal 38, no. 1 (1998): 692. http://dx.doi.org/10.1071/aj97045.

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During October to November 1996 WMC Petroleum conducted the Robert 3D seismic survey to the northeast of North West Cape, off Exmouth Western Australia. The survey used one of two 2678 cui (44 L) air-gun arrays of source level 258 dB re 1µPa2−m p−p below the array (77 bar-m), operating every eight s for 33.4 days of continual operation. Tracklines ran east-west across the path of southerly migrating humpback whales. Before the seismic survey began aerial surveys determined that humpbacks moving through the seismic area were distributed uniformly seaward of the 20 m depth contour. Based on obse

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Ianos, Maria Adelina, Ester Caballé, Cristina Petreñas, and Ángel Huguet. "Language attitudes of young Romanians in Catalonia (Spain): The role of heritage language maintenance programs." Multilingua 38, no. 3 (2019): 335–55. http://dx.doi.org/10.1515/multi-2018-0069.

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Abstract This article presents a mixed method analysis of the language attitudes held by secondary education students of Romanian origin, which are members of the second largest immigrant population living currently in Catalonia. The relevance of this data is based on the cardinal role played by attitudes in the success of any educational or linguistic policy (Lewis, E. Glyn. 1981. Bilingualism and bilingual education. Oxford, UK: Pergamon.) – a topic of special relevance in contexts with considerable migratory influxes, such as Catalonia, which aims to achieve social cohesiveness in a framewo

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