Results 101 to 110 of about 335,699 (292)

Efficacité du dioxyde de carbone comme attractif pour Glossina tachinoides en savane humide d'Afrique de l'Ouest

Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1986
Dans la perspective de l'étude des attractifs olfactifs des glossines du groupe palpalis, il est important de connaître le rôle joué par le dioxyde de carbone.
J.B. Galey, P. Mérot, André Mitteault, J. Filledier, H. Politzar   +4 more
doaj   +1 more source

A Genome‐Wide Association Study of Colorectal Cancer Mortality Outcomes Among Individuals of African and Admixture Ancestry

Molecular Carcinogenesis, EarlyView.
ABSTRACT African Americans have the highest colorectal cancer (CRC) mortality rates in the United States. We performed the first genome‐wide association study (GWAS) of overall and CRC‐specific mortality among African Americans with incident CRC to identify genetic contributors to CRC outcomes.
Thomas Lawler, Jirong Long, Rene Welch, Irene Ong, Oluwatoyosi Ogunmuyiwa, Rida A. Khatri, Martha Shrubsole, Shaneda Warren Andersen   +7 more
wiley   +1 more source

PD-1 blockade employed at the time CD8+ T cells are activated enhances their antitumor efficacy

Journal for ImmunoTherapy of Cancer
Background We have previously shown that immune checkpoint receptors, including PD-1, are upregulated on T cells at the time of their activation, and that blockade of these receptors can improve the efficacy of antitumor vaccines.
Douglas G McNeel, Donghwan Jeon, Ichwaku Rastogi, Jena E Moseman   +3 more
doaj   +1 more source

Sedentary Behavior, Exercise, and Cardiovascular Health

Circulation Research, 2019
Sedentary behavior and physical inactivity are among the leading modifiable risk factors worldwide for cardiovascular disease and all-cause mortality.
C. Lavie, C. Ozemek, S. Carbone, P. Katzmarzyk, S. Blair   +4 more
semanticscholar   +1 more source

Fire buffers drought impacts on reproduction in a resprouting Mediterranean shrub

Oikos, EarlyView.
Fire and drought increasingly co‐occur, exposing plants to greater drought stress during post‐fire resprouting. Yet, the effect of this combination of disturbances on plant fitness remains poorly understood. Here, we examine how post‐fire resprouting influences reproductive success under drought conditions in the Mediterranean shrub Anthyllis ...
Jaime Saiz‐ Blanco, Conchita Alonso, Juli G. Pausas   +2 more
wiley   +1 more source

Stocker du carbone dans les sols français

, 2021
S. Pellerin, Laure Bamière, Isabelle Savini, O. Réchauchère   +3 more
semanticscholar   +1 more source

Forwarding forest restoration: Seven key socio‐ecological issues for advancing forest restoration in a world in flux

People and Nature, EarlyView.
Abstract Restoring forests can help conserve biodiversity, mitigate climate change and enhance human well‐being. Despite financial and political support for global forest restoration initiatives, projects continue to face persistent challenges and trade‐offs between environmental, climatic and socio‐economic goals.
Mariana Hernandez‐Montilla, Katie Devenish, Lucas Alencar, Rayna Benzeev, Pooja Choksi, Ida N. S. Djenontin, Matthew E. Fagan, Harry Fischer, Paola Isaacs Cubides, Thais Linhares Juvenal, Matilda Kabutey‐Ongor, Judith Kamoto, Andrew Kinzer, David Kroeker‐Maus, Stephanie Mansourian, Felipe Melo, Daniel C. Miller, Sandy Nofyanza, Adithya Pradeep, Florian Reiner, Warrangkana Rattanarat, Niken Sakuntaladewi, Conghe Song, Laura Vang Rasmussen, Johan A. Oldekop   +24 more
wiley   +1 more source

Determination of carbon-carbon connectivities, assignment of quaternary carbons, and extraction of carbon-carbon coupling constants by carbon-relayed hydrogen-carbon spectroscopy

Journal of Magnetic Resonance (1969), 1985
Nowadays many possibilities exist to elucidate carbon-carbon connectivity. In hydrogen-bearing carbon systems C-C connectivities can be traced out most conveniently in an indirect way by a combination of H-H COSY (I) and H-C CQSY (2). In case of overlapping ‘proton signals ambiguities can be removed by heteronuclear relayed spectroscopy (3) and ...
Kessler, Horst, Bermel, W., Griesinger, Christian   +2 more
openaire   +2 more sources

Dereplicative Combination of HPLC/DAD/MS and 2D NMR to Identify Lichexanthone Isomers in Lichen Extracts

Phytochemical Analysis, EarlyView.
ABSTRACT Introduction Lichexanthones are the major xanthones found in lichens. They present a high degree of isomerism, which makes their identification tedious. Xanthones are known to occur in lichens according to chemosyndromes, and these compounds act as chemotaxonomic markers.
Solenn Ferron, Marylène Chollet‐Krugler, Hermann Pinson, Rania Marzoug, Philippe Uriac, Françoise Lohézic‐Le Dévéhat   +5 more
wiley   +1 more source

Cellulose carbon-CVD carbon composites

Carbon, 1975
Carbon-carbon composites have been fabricated using a cellulose powder which is molded at low pressures, carbonized at 800°C and infiltrated by a CVD technique at 700°C using propylene as a source of carbon. Infiltration rate at time t is governed by the amount of open porosity existing in the sample at this time.
S. Marinkovic, P.W. Whang, A. Navarrete, P.L. Walker   +3 more
openaire   +2 more sources