Results 21 to 30 of about 41,160 (242)

Tracking Changes in SARS-CoV-2 Transmission with a Novel Outpatient Sentinel Surveillance System in Chicago, Illinois, USA

open access: yesInternational Journal of Infectious Diseases, 2022
Purpose: Public health indicators typically used for monitoring the COVID-19 epidemic can be biased or lag behind changing community transmission patterns.
R. Richardson   +6 more
doaj   +1 more source

Methods of Sentinel Lymph Node Identification in Auricular Melanoma

open access: yesPlastic and Reconstructive Surgery, Global Open, 2021
Background:. Sentinel lymph node biopsy is used to evaluate for micrometastasis in auricular melanoma. However, lymphatic drainage patterns of the ear are not well defined and predicting the location of sentinel nodes can be difficult.
Seth Noorbakhsh, BA   +9 more
doaj   +1 more source

Global Evaluation of SMAP/Sentinel-1 Soil Moisture Products

open access: yesRemote Sensing, 2022
SMAP/Sentinel-1 soil moisture is the latest SMAP (Soil Moisture Active Passive) product derived from synergistic utilization of the radiometry observations of SMAP and radar backscattering data of Sentinel-1.
Farzane Mohseni   +4 more
doaj   +1 more source

Monitoring of post-fire forest scars in Serbia based on satellite Sentinel-2 data

open access: yesGeomatics, Natural Hazards & Risk, 2020
This study aims to improving long-term post-fire environment assessment. It proposes a method for monitoring fire impact using Sentinel-2 satellite data by combining spectral and textural features of land cover types inside a post-fire study sites ...
Olga Brovkina   +5 more
doaj   +1 more source

Evaluation of the representativeness of a sentinel surveillance site for campylobacteriosis

open access: yesEpidemiology and Infection, 2014
SUMMARYIt is important to assess the suitability of sentinel sites for human disease; however, there have been few publications documenting the process of formal evaluation. We describe an approach to examining the representativeness of a single sentinel site employed for campylobacteriosis surveillance and source attribution, utilizing a selection of ...
C F, Bolwell   +3 more
openaire   +2 more sources

Predicting Forest Cover in Distinct Ecosystems: The Potential of Multi-Source Sentinel-1 and -2 Data Fusion

open access: yesRemote Sensing, 2020
The fusion of microwave and optical data sets is expected to provide great potential for the derivation of forest cover around the globe. As Sentinel-1 and Sentinel-2 are now both operating in twin mode, they can provide an unprecedented data source to ...
Kai Heckel   +4 more
doaj   +1 more source

A medical locum service as a site for sentinel influenza surveillance

open access: yesEurosurveillance, 2005
Surveillance of influenza in the countries of the European Union includes a sentinel network of general practitioners reporting cases of influenza-like illness (ILI), the collection of specimens for virological testing, and laboratory reporting of influenza diagnoses.
J, Turner, H, Kelly
openaire   +2 more sources

Comparing methods for sentinel surveillance site placement

open access: yesEmerging Health Threats Journal, 2011
Introduction ILI data are collected via an Influenza Sentinel Provider Surveillance Network at the state level. Because participation is voluntary, locations of the sentinel providers may not reflect optimal geographic placement. This study analyzes two different geographic placement schemes*a maximal coverage model (MCM) and a K-median model, two ...
Geoffrey Fairchild   +4 more
openaire   +1 more source

Wild Zebrafish Sentinels: Biological Monitoring of Site Differences Using Behavior and Morphology [PDF]

open access: yesToxics, 2021
Environmental change poses a devastating risk to human and environmental health. Rapid assessment of water conditions is necessary for monitoring, evaluating, and addressing this global health danger. Sentinels or biological monitors can be deployed in the field using minimal resources to detect water quality changes in real time, quickly and cheaply ...
Jeffrey R. Kelly   +11 more
openaire   +3 more sources

Studies on West Nile virus infection in Egypt

open access: yesJournal of Infection and Public Health, 2010
Summary: We conducted a prospective cohort study to determine prevalence and incidence of West Nile virus (WNV) in Egypt. Cohorts were established in Upper (UE), Middle (ME), and Lower (LE) Egypt.
Atef Soliman   +13 more
doaj   +1 more source

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