Results 121 to 130 of about 202,210 (324)
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Computational Geometry, 2006 The authors discuss algorithms to detect flocks in moving objects. They start with a set of \(n\) identities in the plane and the position of the entities at time steps \(t_1,\dots, t_\tau\). It is supposed that these time steps are taken synchronously for all the identities and that the movement between the steps is linear at constant speed.
Benkert, Marc +3 more
openaire +2 more sources
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
The influence of a single species on the space use of mixed-species flocks in Amazonian Peru
Movement Ecology, 2019 Background The drivers of space use patterns of multi-species groups have been poorly studied, although mixed-species avian flocks are common throughout the world. In a mixed-species flock, multiple species move together and maintain proximity.
Sean M. Williams, Catherine A. Lindell
doaj +1 more source
Modelling hierarchical flocking
New Journal of Physics, 2019 Abstract We present a general framework for modeling a wide selection of flocking scenarios under free boundary conditions. Several variants have been considered—including examples for the widely observed behavior of hierarchically interacting units. The models we have simulated correspond to classes of various realistic situations.
Yongnan Jia, Tamas Vicsek
openaire +5 more sources
Aggressive prostate cancer is associated with pericyte dysfunction
Molecular Oncology, EarlyView.Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero +11 more
wiley +1 more source
Molecular Oncology, EarlyView.ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang +8 more
wiley +1 more source
Poultry Science: In the Netherlands, the number of broiler production systems with higher welfare standards, using slower-growing broilers and decreased stocking densities, has increased over the last decade. This study aimed to investigate the effect of this change on
Y. Slegers +4 more
doaj +1 more source
BEHAVIORAL FACTORS INFLUENCING VARIABILITY OF ROOST COUNTS FOR RIO GRANDE TURKEYS
Wildlife Society Bulletin, 1975 Small winter flocks of Rio Grande turkeys (Meleagris gallopavo intermedia) used many more satellite roosts than did larger flocks on the Welder Wildlife Refuge in south Texas.
David M. Smith
doaj +1 more source
Mortality in organic free-range chickens and molecular characterization of the involved pathogens [PDF]
, 2003 Longitudinal investigations on causes of mortality were carried out at one organic layer farm with four flocks of Lohman Brown and Lohman White chickens producing table eggs. All flocks were housed separately.
Bisgaard, M. +3 more
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