Results 1 to 10 of about 91 (79)

Suspicions of two bridgehead invasions of Xylella fastidiosa subsp. multiplex in France [PDF]

open access: yesCommunications Biology, 2023
A genomic investigation into strains of the plant pathogen, Xylella fastidiosa, in France indicate an American origin with two waves of invasion.
Enora Dupas   +12 more
doaj   +2 more sources

Ethnicity affects relapse-free survival in immune-mediated thrombotic thrombocytopenic purpura [PDF]

open access: yesHaematologica
Immune-mediated thrombotic thrombocytopenic purpura (iTTP) is caused by a severe, antibody-mediated deficiency of ADAMTS13 (A Disintegrin And Metalloproteinase with ThromboSpondin-1 motifs, 13th member) activity.
Júlia Weisinger   +44 more
doaj   +2 more sources

Food for everyone: Differential feeding habits of cryptic bat species inferred from DNA metabarcoding. [PDF]

open access: yesMol Ecol, 2021
Abstract Ecological theory postulates that niches of co‐occurring species must differ along some ecological dimensions in order to allow their stable coexistence. Yet, many biological systems challenge this competitive exclusion principle. Insectivorous bats from the Northern Hemisphere typically form local assemblages of multiple species sharing ...
Andriollo T, Michaux JR, Ruedi M.
europepmc   +2 more sources

Lack of association between classical HLA genes and asymptomatic SARS-CoV-2 infection [PDF]

open access: yesHGG Advances
Summary: Human genetic studies of critical COVID-19 pneumonia have revealed the essential role of type I interferon-dependent innate immunity to SARS-CoV-2 infection.
Astrid Marchal   +1511 more
doaj   +2 more sources

Immunomodulators for immunocompromised patients hospitalized for COVID-19: a meta-analysis of randomized controlled trialsResearch in context [PDF]

open access: yesEClinicalMedicine
Summary: Background: Although immunomodulators have established benefit against the new coronavirus disease (COVID-19) in general, it is uncertain whether such agents improve outcomes without increasing the risk of secondary infections in the specific ...
Ilias I. Siempos   +1272 more
doaj   +2 more sources

Enhancing the Paddy Disease Classification by Using Cross‐Validation Strategy for Artificial Neural Network over Baseline Classifiers

open access: yesJournal of Sensors, Volume 2023, Issue 1, 2023., 2023
Pathogens, including viruses, bacteria, and fungus, are the biotic agents that cause illnesses in crops and are the major cause of yield losses of up to 16 percent in certain parts of the globe. Pathogens are the primary cause of yield losses in some parts of the world.
V. Malathi   +5 more
wiley   +1 more source

RASTROS DO ENSINO DE CÁLCULO DIFERENCIAL E INTEGRAL NAS DÉCADAS INICIAIS DA ACADEMIA MILITAR DO RIO DE JANEIRO

open access: yesRevista Brasileira de História da Matemática, 2020
A partir de registros documentais examina-se alguns aspectos dos rastros deixados a respeito do ensino de cálculo e das suas representações, segundo abordagens orientadas pela história cultural.
Ligia Arantes Sad
doaj   +1 more source

Laboratory Notes, Laboratory Experiences, and Conceptual Analysis: Understanding the Making of Ohm's First Law in Electricity

open access: yesBerichte zur Wissenschaftsgeschichte, Volume 43, Issue 1, Page 7-27, March 2020., 2020
Abstract Georg Simon Ohm's work in the field of electricity led to what is now considered to be the most fundamental law of electrical circuits, Ohm's Law. Much less known is that only months earlier, Ohm had published another law—one that differed significantly from the now accepted one. The latter entailed a logarithmic relation between the length of
Peter Heering   +2 more
wiley   +1 more source

Left‐ and Right‐Shifted Fractional Legendre Functions with an Application for Fractional Differential Equations

open access: yesAdvances in Mathematical Physics, Volume 2020, Issue 1, 2020., 2020
Two new orthogonal functions named the left‐ and the right‐shifted fractional‐order Legendre polynomials (SFLPs) are proposed. Several useful formulas for the SFLPs are directly generalized from the classic Legendre polynomials. The left and right fractional differential expressions in Caputo sense of the SFLPs are derived.
Haidong Qu   +3 more
wiley   +1 more source

Sobre Legendre e os Números Primos

open access: yesREMATEC. Revista de Matemática, Ensino e Cultura, 2008
Adrien Marie Legendre (1752-1883) foi um matemático francês que publicou em 1794 a obra “Éléments de Géométrie”, que ganhou um prêmio especial do júri do concurso de produção de livros elementares para o ensino francês no fim do século XVIII.
Maria Aparecida Roseane Ramos
doaj  
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