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1

Keeling, Matt J., Samik Datta, Daniel N. Franklin, et al. "Efficient use of sentinel sites: detection of invasive honeybee pests and diseases in the UK." Journal of The Royal Society Interface 14, no. 129 (2017): 20160908. http://dx.doi.org/10.1098/rsif.2016.0908.

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Sentinel sites, where problems can be identified early or investigated in detail, form an important part of planning for exotic disease outbreaks in humans, livestock and plants. Key questions are: how many sentinels are required, where should they be positioned and how effective are they at rapidly identifying new invasions? The sentinel apiary system for invasive honeybee pests and diseases illustrates the costs and benefits of such approaches. Here, we address these issues with two mathematical modelling approaches. The first approach is generic and uses probabilistic arguments to calculate
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Ridley, A. R., N. J. Raihani, and M. B. V. Bell. "Experimental evidence that sentinel behaviour is affected by risk." Biology Letters 6, no. 4 (2010): 445–48. http://dx.doi.org/10.1098/rsbl.2010.0023.

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Sentinels are a conspicuous feature of some cooperative societies and are often assumed to provide benefits in terms of increased predator detection. Similar to other cooperative behaviours, variation in investment in sentinel behaviour should reflect variation in the benefits of such behaviour. However, evidence for this is inconclusive: to date experiments have manipulated the cost of sentinel behaviour, and considerations of changes in the benefits of sentinel activity on investment patterns are lacking. Here, we experimentally manipulated the benefits of sentinel behaviour in the cooperati
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Ostreiher, Roni, and Aviad Heifetz. "The sentinel behaviour of Arabian babbler floaters." Royal Society Open Science 4, no. 2 (2017): 160738. http://dx.doi.org/10.1098/rsos.160738.

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The sentinel behaviour of 38 Arabian babbler adult floaters, who lived alone within a territory belonging to a foreign group, was studied and compared with their own sentinel behaviour in the past, when they were group members. All floaters acted as sentinels and uttered ‘alarm calls’. This suggests that sentinel activity is due at least, in part, to selfish motives. Floaters sentinelled less than they did as group members, with the decrease in sentinel activity sharper for ex-dominants than for ex-subordinates. One possible explanation for these differences is that sentinel activity is aimed
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Santrač, Nada, Ivan Marković, Milijić Nataša Medić, et al. "Sentinel lymph node biopsy in medullary thyroid microcarcinomas." Endocr J 67, no. 3 (2020): 295–304. https://doi.org/10.1507/endocrj.EJ19-0409.

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The aim of this prospective study was to analyze accuracy of sentinel lymph node biopsy with methylene blue dye for intraoperative detection of lateral metastases in clinically N0M0 medullary microcarcinomas with calcitonin <1,000 pg/mL and selection of true-positive patients for one-time therapeutic lateral dissection. In addition to total thyroidectomy and central neck dissection, all patients had bilateral sentinel biopsy of jugulo-carotid regions after methylene blue injection to decide upon necessity for lateral dissection. If sentinels were benign on frozen section, additional nonsent
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RAGUSA-NETTO, J. "Sentinels in Saltator atricollis (Passeriformes: Emberizidae)." Revista Brasileira de Biologia 61, no. 2 (2001): 317–22. http://dx.doi.org/10.1590/s0034-71082001000200015.

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I studied the existence of sentinels in Saltator atricollis in a 'campo-cerrado' (Brazilian savanna) during the breeding seasons of 1994-95 and 1995-96. Groups of this species consisted of two to seven birds (N = 25). Sentinels were present (mean ± sd) 62% ± 9% of the time, and most sentinel bouts lasted from less than one to six minutes (although in some occasions for more than 30 min.). Overlap of two or more sentinels occurred on average only 3.2% of the time with birds on guard. Sentinels commonly gave contact calls in the beginning and/or at the end of a sentinel bout. The group size had
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Racloz, V., C. Griot, and K. D. C. Stärk. "Sentinel surveillance systems with special focus on vector-borne diseases." Animal Health Research Reviews 7, no. 1-2 (2006): 71–79. http://dx.doi.org/10.1017/s1466252307001120.

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In the past few decades, vector-borne diseases have been spreading into countries previously free of these agents. It is necessary for a surveillance method to be tailored to the biology of these agents in order to detect their incursion. Using a sentinel herd system, it is possible to target high-risk areas where occurrence is most probably due to vector presence. Since the 1970s, diseases such as Akabane, vesicular stomatitis and Bluetongue disease have successfully been monitored using cattle herds as sentinels in many countries such as Saudi Arabia, Australia, China, Indonesia, Sultanate o
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Devan R.K, Shakthi, Parthiban N, Samarendra Narayanan, and Suresh Poosala. "Sentinel Monitoring Program: Quality Assurance in Laboratory animal facility." Journal of Laboratory Animal Science 1, no. 1 (2024): 68–76. https://doi.org/10.48165/jlas.2019.1.1.7.

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Sentinel animal testing plays a pivotal role in management of any modern vivarium. It is an extremelyuseful tool to assess the microbial status of the laboratory animals as part of the comprehensive animalcare program. Sentinels pick up the early infection if any, in the micro and/or macro environment, as theseanimals are placed in a similar environment intentionally. Sentinels are representative animals, independentof the research colonies and are maintained only for the purpose of screening the pathogenic organismsat regular intervals. At times, as part of 3R's, we have on occasion used rese
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8

H A, Ravindranath, Sukesh B, Umadevi C J, and Murigendra B H. "Sentinel Monitoring Program: Quality Assurance in Laboratory animal facility." Journal of Laboratory Animal Science 1, no. 1 (2018): 24–30. https://doi.org/10.48165/jlas.2019.1.1.4.

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Sentinel animal testing plays a pivotal role in management of any modern vivarium. It is an extremelyuseful tool to assess the microbial status of the laboratory animals as part of the comprehensive animalcare program. Sentinels pick up the early infection if any, in the micro and/or macro environment, as theseanimals are placed in a similar environment intentionally. Sentinels are representative animals, independentof the research colonies and are maintained only for the purpose of screening the pathogenic organismsat regular intervals. At times, as part of 3R's, we have on occasion used rese
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Zaias, Julia, Catia Farrington, Robert S. Livingston, and Linda W. Waterman. "Seroconversion of 1-year-old Mice to Murine Norovirus." Journal of the American Association for Laboratory Animal Science 58, no. 2 (2019): 197–200. http://dx.doi.org/10.30802/aalas-jaalas-18-000054.

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Rodent sentinel screening for adventitious pathogens is an integral part of many biomedical research institutes and universities that use rodents in research. Typical screening programs involving live sentinel animals typically purchase young SPF sentinel animals that are sampled and replaced quarterly. Previous reports suggest that mice as old as 6 mo are effective sentinels for various agents. In efforts to reduce the number of animals used in our sentinel program, we wanted to investigate the possibility of keeping sentinel animals inhouse for 12 mo at a time. We exposed mice (age, 40 to 48
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Tarpanelli, Angelica, Alessandro C. Mondini, and Stefania Camici. "Effectiveness of Sentinel-1 and Sentinel-2 for flood detection assessment in Europe." Natural Hazards and Earth System Sciences 22, no. 8 (2022): 2473–89. http://dx.doi.org/10.5194/nhess-22-2473-2022.

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Abstract. Inundation is one of the major natural hazards in Europe. The evaluation of the flood hazard and risk is not straightforward mainly due to the monitoring system that is poor or not uniformly distributed in the territory. The ESA Earth Observation Program, including a series of satellites, Sentinels, for the operative observation of the natural phenomenon, e.g. the inundations, can potentially reduce the gap. Sentinel-1 (SAR: synthetic aperture radar) and Sentinel-2 (optical) have been demonstrated to be suitable for mapping flooded areas, but despite the medium–high spatial and tempo
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11

Lepitzki, Dwayne A. W., Marilyn E. Scott, and J. Daniel McLaughlin. "Assessing cercarial transmission of Cyathocotyle bushiensis and Sphaeridiotrema pseudoglobulus by use of sentinel snails." Canadian Journal of Zoology 72, no. 5 (1994): 885–91. http://dx.doi.org/10.1139/z94-120.

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Sentinel snails (Bithynia tentaculata) were used to assess spatial and temporal variation in cercarial transmission of Cyathocotyle bushiensis and Sphaeridiotrema pseudoglobulus at two field locations in southern Quebec and southeastern Ontario from mid-August to the end of October, 1989. Sentinels acquired infections with both digeneans; however, low levels of metacercariae of C. bushiensis precluded any conclusions regarding transmission of this parasite from being reached. In contrast, extensive spatial heterogeneity existed in the S. pseudoglobulus – snail system. Sentinel snails within 10
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12

Wang, S., B. Yang, Y. Zhou, F. Wang, R. Zhang, and Q. Zhao. "SNOW COVER MAPPING AND ICE AVALANCHE MONITORING FROM THE SATELLITE DATA OF THE SENTINELS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3 (April 30, 2018): 1765–72. http://dx.doi.org/10.5194/isprs-archives-xlii-3-1765-2018.

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In order to monitor ice avalanches efficiently under disaster emergency conditions, a snow cover mapping method based on the satellite data of the Sentinels is proposed, in which the coherence and backscattering coefficient image of Synthetic Aperture Radar (SAR) data (Sentinel-1) is combined with the atmospheric correction result of multispectral data (Sentinel-2). The coherence image of the Sentinel-1 data could be segmented by a certain threshold to map snow cover, with the water bodies extracted from the backscattering coefficient image and removed from the coherence segment result. A snow
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13

Pla, Magda, Gerard Bota, Andrea Duane, et al. "Calibrating Sentinel-2 Imagery with Multispectral UAV Derived Information to Quantify Damages in Mediterranean Rice Crops Caused by Western Swamphen (Porphyrio porphyrio)." Drones 3, no. 2 (2019): 45. http://dx.doi.org/10.3390/drones3020045.

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Making agricultural production compatible with the conservation of biological diversity is a priority in areas in which human–wildlife conflicts arise. The threatened Western Swamphen (Porphyrio porphyrio) feeds on rice, inducing crop damage and leading to decreases in rice production. Due to the Swamphen protection status, economic compensation policies have been put in place to compensate farmers for these damages, thus requiring an accurate, quantitative, and cost-effective evaluation of rice crop losses over large territories. We used information captured from a UAV (Unmanned Aerial Vehicl
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14

Schirdewahn, Frederik, Hartmut H. K. Lentz, Vittoria Colizza, Andreas Koher, Philipp Hövel, and Beatriz Vidondo. "Early warning of infectious disease outbreaks on cattle-transport networks." PLOS ONE 16, no. 1 (2021): e0244999. http://dx.doi.org/10.1371/journal.pone.0244999.

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Surveillance of infectious diseases in livestock is traditionally carried out at the farms, which are the typical units of epidemiological investigations and interventions. In Central and Western Europe, high-quality, long-term time series of animal transports have become available and this opens the possibility to new approaches like sentinel surveillance. By comparing a sentinel surveillance scheme based on markets to one based on farms, the primary aim of this paper is to identify the smallest set of sentinel holdings that would reliably and timely detect emergent disease outbreaks in Swiss
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15

Indarto, Indarto, Marga Mandala, Fery Febrian Arifin, and Farid Lukman Hakim. "APLIKASI CITRA SENTINEL-2 UNTUK PEMETAAN TUTUPAN DAN PERUNTUKAN LAHAN PADA TINGKAT DESA." JURNAL GEOGRAFI 12, no. 02 (2020): 189. http://dx.doi.org/10.24114/jg.v12i02.16970.

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Sentine-2 menjanjikan citra yang gratis, pada ketelitian spasial sedang dan ketelitian spektral tinggi. Data citra ini mungkin dapat digunakan sebagai dasar pemetaan tutupan lahan (land cover) dan pruntukan lahan (land use) sampai dengan level Desa. Artikel ini bertujuan untuk membandingkan dan mengevaluasi peta tematik yang dihasilkan dari: (1) Klasifikasi dari citra Sentinel-2A, (b) digitasi manual dari Google Earth Image, (c) dan peta RBI (Rupa Bumi Indonesia). Citra Sentinel-2A, citra google earth dan peta RBI digital digunakan sebagai input utama. Pengolahan citra Sentinel-2A mencakup: at
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16

Glasbergen, Brad, Michael Abebe, Khuzaima Daudjee, and Amit Levi. "Sentinel." Proceedings of the VLDB Endowment 13, no. 12 (2020): 2720–33. http://dx.doi.org/10.14778/3407790.3407856.

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&NA;. "SENTINEL." Clinical Nuclear Medicine 24, no. 10 (1999): 827. http://dx.doi.org/10.1097/00003072-199910000-00044.

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Heuser, Richard R. "SENTINEL." Journal of the American College of Cardiology 69, no. 21 (2017): 2679. http://dx.doi.org/10.1016/j.jacc.2017.02.069.

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Chakravarthy, S. "Sentinel." ACM SIGMOD Record 26, no. 2 (1997): 572–75. http://dx.doi.org/10.1145/253262.253409.

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Hershenow, Nick. "Sentinel." Missouri Review 20, no. 2 (1997): 9–19. http://dx.doi.org/10.1353/mis.1997.0040.

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Pan, Mary. "Sentinel." Fourth Genre 26, no. 1 (2024): 125–33. http://dx.doi.org/10.14321/fourthgenre.26.1.0125.

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Miller, Manuel, and Markus Brielmeier. "Environmental samples make soiled bedding sentinels dispensable for hygienic monitoring of IVC-reared mouse colonies." Laboratory Animals 52, no. 3 (2017): 233–39. http://dx.doi.org/10.1177/0023677217739329.

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Accurate knowledge of the health status of experimental animals is pivotal to high scientific and ethical standards in biomedical research. Individually ventilated cages (IVCs) are becoming the predominant system for housing laboratory mice, as they prevent cage-to-cage infections. However, this feature constitutes a major drawback for hygienic monitoring of mouse colonies, as traditional screening programs build on reliable transmission of infectious agents from experimental animals to sentinel mice commonly tested as representatives for the mouse colonies. In recent years, the laboratory ani
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Chen, Yueqing, Sijia Qiao, Guangxin Zhang, Y. Jun Xu, Liwen Chen, and Lili Wu. "Investigating the potential use of Sentinel-1 data for monitoring wetland water level changes in China’s Momoge National Nature Reserve." PeerJ 8 (February 17, 2020): e8616. http://dx.doi.org/10.7717/peerj.8616.

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Background Interferometric Synthetic Aperture Radar (InSAR) has become a promising technique for monitoring wetland water levels. However, its capability in monitoring wetland water level changes with Sentine-1 data has not yet been thoroughly investigated. Methods In this study, we produced a multitemporal Sentinel-1 C-band VV-polarized SAR backscatter images and generated a total of 28 interferometric coherence maps for marsh wetlands of China’s Momoge National Nature Reserve to investigate the interferometric coherence level of Sentinel-1 C-VV data as a function of perpendicular and tempora
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RAGUSA-NETTO, J. "Raptors and "campo-cerrado" bird mixed flock led by Cypsnagra Hirundinacea (Emberizidae:Thraupinae)." Revista Brasileira de Biologia 60, no. 3 (2000): 461–67. http://dx.doi.org/10.1590/s0034-71082000000300011.

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Bird mixed flocks including Cypsnagra hirundinacea and Neothraupis fasciata as species with sentinels were studied in "campo-cerrado" in order to investigate the possible relationship between alertness and the mixed flock leadership. This study was conducted from March to September 1996 and mixed flocks were observed on average for 2:30h. The time with sentinels were recorded for C. hirundinacea and N. fasciata. The sentinels of Cypsnagra hirundinacea performed most of the vigilance (time with sentinel was on average 42 ± 17%, 41 ± 17% of which by C. hirundinacea, whereas only 1.2 % by N. fasc
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Rodrigues, Ana Paula, Rita Carvalho Fonseca, and Carlos Matias-Dias. "Rede Médicos-Sentinela como Instrumento de Vigilância em Saúde [Pública]." Acta Médica Portuguesa 29, no. 1 (2016): 5. http://dx.doi.org/10.20344/amp5938.

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<p>Current strategies of European health advocate the strengthening of the role of public health, requiring from decision-makers the ability to defend and enhance the health of individuals and populations in all policies. In the pursuit of this objective, public health should be evidence-based and so public health surveillance, seen as an important tool of public health since the nineteenth century, plays a central role in public health practice through the production and dissemination of the health information necessary for health planning and for evaluation of public health actions. Wi
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Rodrigues, Ana Paula, Rita Carvalho Fonseca, and Carlos Matias-Dias. "Rede Médicos-Sentinela como Instrumento de Vigilância em Saúde [Pública]." Acta Médica Portuguesa 29, no. 1 (2016): 5. http://dx.doi.org/10.20344/amp.5938.

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<p>Current strategies of European health advocate the strengthening of the role of public health, requiring from decision-makers the ability to defend and enhance the health of individuals and populations in all policies. In the pursuit of this objective, public health should be evidence-based and so public health surveillance, seen as an important tool of public health since the nineteenth century, plays a central role in public health practice through the production and dissemination of the health information necessary for health planning and for evaluation of public health actions. Wi
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Rabiei, Saman, Ehsan Jalilvand, and Massoud Tajrishy. "A Method to Estimate Surface Soil Moisture and Map the Irrigated Cropland Area Using Sentinel-1 and Sentinel-2 Data." Sustainability 13, no. 20 (2021): 11355. http://dx.doi.org/10.3390/su132011355.

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Considering variations in surface soil moisture (SSM) is essential in improving crop yield and irrigation scheduling. Today, most remotely sensed soil moisture products have difficulties in resolving irrigation signals at the plot scale. This study aims to use Sentinel-1 radar backscatter and Sentinel-2 multispectral imagery to estimate SSM at high spatial (10 m) and temporal resolution (at least 5 days) over an agricultural domain. Three supervised machine learning algorithms, multilayer perceptron (MLP), a convolutional neural network (CNN), and linear regression models, were trained to esti
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Cai, Jiannan, Qiancai Jiang, Yafei Shi, and Jiabin Wang. "Leaf area index retrieval of urban vegetation based on sentinel-2 data in Zhongshan, South China." Bangladesh Journal of Botany 49, no. 4 (2020): 1103–9. http://dx.doi.org/10.3329/bjb.v49i4.52559.

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Leaf area index (LAI) is an important indicator of vegetation growth and health monitoring. The free access of Sentinel-2 optical satellite data from European Space Agency (ESA) since June 2015 made it possible to determine dynamic monitoring of LAI in a large area and a short re-entry period, owing to its high spatial resolution (up to 10 m) and unique band combination. These features of Sentinel-2 may bring great application potential in urban forestry management and ecological environment monitoring. In case of Zhongshan city in Guangdong Province, based on Sentinels Application Platform (S
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Costi, Juliana, Phelype Haron Oleinik, Caroline Barbosa Monteiro, Wiliam Correa Marques, and Jorge Arigony-Neto. "An Automated Structure for Acquiring and Processing Sentinel-1 Data and its Applicability for Coastal Studies." Defect and Diffusion Forum 372 (March 2017): 122–31. http://dx.doi.org/10.4028/www.scientific.net/ddf.372.122.

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The present work develops an automated structure to search, download and pre process Synthetic Aperture RADAR imagery acquired by the Sentinel-1 mission. A Python script defines the area and time of interest, performs the search for relevant products and download them using the Application Program Interfaces Hub of the Sentinels Scientific Data Hub. The preprocessing steps are performed using the Graph Processing Tool, which allows for a batch-mode execution of the Sentinel-1 Toolbox operators. Both steps are combined in a Bash program that performs the entire chain daily, without the need of
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Eldahab, Zeinab Ibrahim Swar, Jehan Eissa Hamad Abdelhakm, and Samah Abdelrahman Hassan Ibrahim. "Assessment of the Supportive Function of the Surveillance System for Communicable Diseases at the Selected Sentinel Sites in Khartoum State, Sudan, in 2019–2022." European Journal of Medical and Health Sciences 7, no. 1 (2025): 44–47. https://doi.org/10.24018/ejmed.2025.7.1.2156.

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This study aimed to assess the supportive functions of Communicable Diseases Surveillance System (CDSS) at the selected sentinel sites in Khartoum, Sudan. A cross-sectional descriptive facility-based study was conducted in 93 selected sentinel sites in Khartoum between the period of 2019 to 2020. Data was collected using an interview-based questionnaire and checklist. A total of 304 focal persons were interviewed (medical director, medical officers, statisticians, and lab technicians). Workers who refused to participate were executed. The data analysis revealed that most participants (26.6%) w
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Mohammadi, Ayub, Sadra Karimzadeh, Shazad Jamal Jalal, et al. "A Multi-Sensor Comparative Analysis on the Suitability of Generated DEM from Sentinel-1 SAR Interferometry Using Statistical and Hydrological Models." Sensors 20, no. 24 (2020): 7214. http://dx.doi.org/10.3390/s20247214.

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Digital elevation model (DEM) plays a vital role in hydrological modelling and environmental studies. Many essential layers can be extracted from this land surface information, including slope, aspect, rivers, and curvature. Therefore, DEM quality and accuracy will affect the extracted features and the whole process of modeling. Despite freely available DEMs from various sources, many researchers generate this information for their areas from various observations. Sentinal-1 synthetic aperture radar (SAR) images are among the best Earth observations for DEM generation thanks to their availabil
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Fierke, M. K., M. C. Whitmore, C. Foelker, J. D. Vandenberg, and J. Carlson. "Delimitation and management of emerald ash borer (Coleoptera: Buprestidae): case study at an outlier infestation in southwestern New York State, United States of America." Canadian Entomologist 145, no. 5 (2013): 577–87. http://dx.doi.org/10.4039/tce.2013.39.

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AbstractWe present a case study in which we developed an adaptive delimitation technique and implemented and evaluated management of emerald ash borer (EAB), Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), in the first infestation discovered in New York State, United States of America. Delimitation was accomplished using 106 girdled “sentinel” trees and management included girdling 18 clusters of trees as population “sinks” to attract EAB and concentrate larvae for removal. Weekly monitoring of traps hung in sentinel trees facilitated early detection of EAB on 12 trees and allowed dep
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Girsang, Dhea Vonisa, I. Made Yuliara, and Ni Nyoman Ratini. "ESTIMATION OF PB AND TOTAL SUSPENDED SOLID (TSS) CONCENTRATION BASED ON REMOTE SENSING DATA." Indonesian Physical Review 6, no. 1 (2022): 42–50. http://dx.doi.org/10.29303/ipr.v6i1.165.

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Research has been carried out on the comparison of the concentration of Pb and Total Suspended Solid (TSS) of laboratory test results with Sentinel-2A satellite image data recorded on August 25, 2021 at the Suwung estuary dam, Denpasar city. The method used to compare the 2 measurement results is through testing by paired sample correlation and the graph. The result from the measurement show that the TSS value between Sentine-2A and laboratory has a fairly close value but the Pb value between Sentinel-2A and the laboratory have a much differences. The differences of the value between Sentinel-
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Wills, Robert, Alan Doster, and Fernando Osorio. "Transmission of porcine reproductive and respiratory syndrome virus (PRRSV) to age-matched sentinel pigs." Journal of Swine Health and Production 10, no. 4 (2002): 161–65. http://dx.doi.org/10.54846/jshap/342.

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Objectives: To determine how long PRRSV-infected pigs remain contagious to age-matched sentinel pigs and whether the infected pigs are intermittently or continuously contagious. Methods: In each of two trials, five 4- to 6-week-old pigs (Principals) housed in one isolation room were inoculated with PRRSV. Pairs of age-matched sentinel pigs (Sentinels) were sequentially placed in direct contact with the Principals for 2-week periods, with 1-week intervals between pairs. Serum samples collected from Sentinels were tested by virus isolation and serology (ELISA) to determine whether transmission h
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Beauchamp, Guy, and Reed Bowman. "Visual Monitoring Strategies of Sentinels in a Cooperative Breeder." Biology 11, no. 12 (2022): 1769. http://dx.doi.org/10.3390/biology11121769.

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Vigilance is important for early detection of threats. Previous studies have focused on the allocation of time to vigilance but neglected how animals monitor their surroundings during vigilance. Where animals look and how long each look lasts can affect the quality of visual monitoring and thus the ability to detect threats during vigilance. We examined visual monitoring strategies in the Florida scrub-jay (Aphelocoma coerulescens), a cooperative breeder with sentinel behaviour. Sentinels in this species make head turns from vantage points to detect the arrival of predators and intruding neigh
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Bader-LeNormand, Kathleen. "Swamp Sentinel." English Journal 86, no. 4 (1997): 51. http://dx.doi.org/10.2307/821000.

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Farrell, L. "The sentinel." BMJ 343, no. 16 1 (2011): d7328. http://dx.doi.org/10.1136/bmj.d7328.

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KOBS, ANN. "Sentinel Event." Nursing Management (Springhouse) 29, no. 2 (1998): 10???13. http://dx.doi.org/10.1097/00006247-199802000-00001.

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Mahlke, Scott A., William Y. Chen, Roger A. Bringmann, et al. "Sentinel scheduling." ACM Transactions on Computer Systems 11, no. 4 (1993): 376–408. http://dx.doi.org/10.1145/161541.159765.

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SoRelle, Ruth. "Sentinel EDs." Emergency Medicine News 25, no. 10 (2003): 8. http://dx.doi.org/10.1097/00132981-200310000-00010.

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Manuel, J. "Sentinel school." Environmental Health Perspectives 104, no. 9 (1996): 934–36. http://dx.doi.org/10.1289/ehp.96104934.

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Kowalczyk, Dominik. "Wolfram: Sentinel." Leonardo Music Journal 12 (December 2002): 83–84. http://dx.doi.org/10.1162/lmj.2002.12.83b.

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Petska, Hillary W., and Lynn K. Sheets. "Sentinel Injuries." Pediatric Clinics of North America 61, no. 5 (2014): 923–35. http://dx.doi.org/10.1016/j.pcl.2014.06.007.

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&NA;. "SENTINEL NODE." Clinical Nuclear Medicine 24, no. 12 (1999): 1006. http://dx.doi.org/10.1097/00003072-199912000-00049.

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&NA;. "SENTINEL NODE." Clinical Nuclear Medicine 25, no. 1 (2000): 83. http://dx.doi.org/10.1097/00003072-200001000-00045.

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Uren, R. F., J. F. Thompson, and R. Howman-Giles. "Sentinel Nodes." Clinical Nuclear Medicine 25, no. 3 (2000): 234. http://dx.doi.org/10.1097/00003072-200003000-00025.

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Leong, Stanely P. L. "Sentinel Nodes." Clinical Nuclear Medicine 25, no. 3 (2000): 234. http://dx.doi.org/10.1097/00003072-200003000-00026.

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Boxen, I., D. McCready, and J. R. Ballinger. "Sentinel Nodes." Clinical Nuclear Medicine 25, no. 3 (2000): 234. http://dx.doi.org/10.1097/00003072-200003000-00027.

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Evans, Randolph W., Esma Dilli, and David W. Dodick. "Sentinel Headache." Headache: The Journal of Head and Face Pain 49, no. 4 (2009): 599–603. http://dx.doi.org/10.1111/j.1526-4610.2009.01381.x.

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de Falco, F. A. "Sentinel headache." Neurological Sciences 25, S3 (2004): s215—s217. http://dx.doi.org/10.1007/s10072-004-0289-1.

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