11 outubro 2020
Measurement-based evaluation of Google/Apple Exposure Notification API for proximity detection in a light-rail tram
Measurement-based evaluation of Google/Apple Exposure Notification API for proximity detection in a light-rail tram: We report on the results of a Covid-19 contact tracing app measurement study carried out on a standard design of European commuter tram. Our measurements indicate that in the tram there is little correlation between Bluetooth received signal strength and distance between handsets. We applied the detection rules used by the Italian, Swiss and German apps to our measurement data and also characterised the impact on performance of changes in the parameters used in these detection rules. We find that the Swiss and German detection rules trigger no exposure notifications on our data, while the Italian detection rule generates a true positive rate of 50% and a false positive rate of 50%. Our analysis indicates that the performance of such detection rules is similar to that of triggering notifications by randomly selecting from the participants in our experiments, regardless of proximity.
Demographics of COVID-19 Deaths
Demographics of COVID-19 Deaths: international data on deaths related to COVID-19 documented and detailed by sex and age groups
10 outubro 2020
Le Covid, accélérateur des mutations du journalisme
Le Covid, accélérateur des mutations du journalisme: Le covid balaye toutes les autres actualités. Les journalistes
retournent aux fondamentaux du métier : expliquer, enquêter et vérifier
l’information. Sous contrainte sanitaire, leurs pratiques
journalistiques évoluent. Deux tendances de fonds s’accélèrent :
l’émergence d’un journalisme de solution et la co-construction de
l’information avec le public.
retournent aux fondamentaux du métier : expliquer, enquêter et vérifier
l’information. Sous contrainte sanitaire, leurs pratiques
journalistiques évoluent. Deux tendances de fonds s’accélèrent :
l’émergence d’un journalisme de solution et la co-construction de
l’information avec le public.
Sleuths Uncover Web of Research Fraud in 400 Papers From China
Sleuths Uncover Web of Research Fraud in 400 Papers From China: Elisabeth Bik, the microbiologist and research integrity consultant noted for unearthing evidence of research misconduct, tweeted on February 21 that she and some others had uncovered over 400 scientific papers “that all share a very similar title layout, graph layout, and (most importantly) the same Western blot layout” – indicating an organised web of potential fraud. She also expressed concern that “there might be hundreds of papers more”, and that she and her collaborators may just have spotted the obviously fraudulent ones.
Pruebas rápidas sin certificación de China dominan mercado de América Latina
Pruebas rápidas sin certificación de China dominan mercado de América Latina: En América Latina cerca de 80 laboratorios de China han vendido sus
pruebas rápidas de Covid-19 a los distintos niveles de gobierno, han
recibido autorizaciones sanitarias de emergencia o han importado estos
test a través de las fronteras de cinco países de esta región, entre
ellos el Perú. Sin embargo, el 93% de estos test serológicos no cuentan
con certificación sanitaria en su país de origen. Una investigación
coordinada por la Red de Periodistas de América Latina para la
Transparencia y la Anticorrupción (Palta).
pruebas rápidas de Covid-19 a los distintos niveles de gobierno, han
recibido autorizaciones sanitarias de emergencia o han importado estos
test a través de las fronteras de cinco países de esta región, entre
ellos el Perú. Sin embargo, el 93% de estos test serológicos no cuentan
con certificación sanitaria en su país de origen. Una investigación
coordinada por la Red de Periodistas de América Latina para la
Transparencia y la Anticorrupción (Palta).
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