Results 11 to 20 of about 1,192,373 (315)

Natural Selection: Sign, Sign, Everywhere a Sign [PDF]

open access: yesCurrent Biology, 2004
Natural selection is an important factor influencing variation in the human genome, but most genetic studies of natural selection have focused on variants with unknown phenotypic associations. This trend is changing. New studies are rapidly revealing the effects of natural selection on genetic variants of known or likely functional importance.
openaire   +2 more sources

IgG1 memory B cells keep the memory of IgE responses

open access: yesNature Communications, 2017
IgE is an important mediator of protective immunity as well as allergic reaction, but how high affinity IgE antibodies are produced in memory responses is not clear.
Jin-Shu He   +14 more
doaj   +1 more source

Allopurinol non-covalently facilitates binding of unconventional peptides to HLA-B*58:01

open access: yesScientific Reports, 2023
Allopurinol, widely used in gout treatment, is the most common cause of severe cutaneous adverse drug reactions. The risk of developing such life-threatening reactions is increased particularly for HLA-B*58:01 positive individuals.
Xuelu Huan   +3 more
doaj   +1 more source

Author Correction: Lung endothelial cell antigen cross-presentation to CD8+T cells drives malaria-associated lung injury

open access: yesNature Communications, 2019
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Carla Claser   +13 more
doaj   +1 more source

Calcineurin-mediated IL-2 production by CD11chighMHCII+ myeloid cells is crucial for intestinal immune homeostasis

open access: yesNature Communications, 2018
Treg cells can maintain intestinal homeostasis and limit intestinal bowel disease. Here the authors use a mouse model of spontaneous colitis to show that calcineurin-NFAT-induced IL-2 production by dendritic cells regulates the balance between Treg and ...
Andrea Mencarelli   +12 more
doaj   +1 more source

On sign-symmetric signed graphs

open access: yesArs Mathematica Contemporanea, 2020
A signed graph is said to be sign-symmetric if it is switching isomorphic to its negation. Bipartite signed graphs are trivially sign-symmetric. We give new constructions of non-bipartite sign-symmetric signed graphs. Sign-symmetric signed graphs have a symmetric spectrum but not the other way around.
Ebrahim Ghorbani   +3 more
openaire   +5 more sources

Lung endothelial cell antigen cross-presentation to CD8+T cells drives malaria-associated lung injury

open access: yesNature Communications, 2019
Severe malaria can be associated with respiratory complications. Here, the authors show that malaria-associated pulmonary vascular damage is a consequence of IFNγ-activated lung endothelial cells capturing, processing, and cross-presenting malaria ...
Carla Claser   +13 more
doaj   +1 more source

CD103+ Dendritic Cells Control Th17 Cell Function in the Lung

open access: yesCell Reports, 2015
Th17 cells express diverse functional programs while retaining their Th17 identity, in some cases exhibiting a stem-cell-like phenotype. Whereas the importance of Th17 cell regulation in autoimmune and infectious diseases is firmly established, the ...
Teresa Zelante   +14 more
doaj   +1 more source

Numeral Incorporation as Grammaticalization? A Corpus Study on German Sign Language (DGS)

open access: yesLanguages, 2023
Numeral incorporation describes the merging of a numeral sign with a lexical sign to create a single sign with a compositional meaning, e.g., “three weeks.” As a phenomenon of simultaneous morphology, numeral incorporation is unique to sign languages ...
Felicitas Otte   +3 more
doaj   +1 more source

SIGNS AND COSMOLOGY [PDF]

open access: yesInternational Journal of Modern Physics D, 2012
Using a new effective action predicted from quantum gravity where the sign of the Euclidean Einstein action is reversed, we discuss Wentzel–Kramers–Brillouin (WKB) solutions in quantum cosmology and predict that this sign change might explain the origin of phantom scalars.
Dasgupta, Arundhati, Zampeli, Adamantia
openaire   +2 more sources

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