Results 101 to 110 of about 3,770,727 (360)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Star clusters in unperturbed spiral galaxies

open access: yes, 2008
Stars do not form in isolation, they form in groups known as star clusters. Star clusters are seen in a wide range of galaxies and environments. Their presence reveals the history of the host galaxy and the processes of its star formation.
Mora, Marcelo D.
core  

Unveiling Inequality of Atoms in Ultrasmall Pt Clusters: Oxygen Adsorption Limited to the Uppermost Atomic Layer

open access: yesSmall Structures
The concept of preferential atomic and molecular adsorption site is of primary relevance in heterogeneous catalysis. In the case of ultrasmall size‐selected clusters, distinguishing the role played by each atom in a reaction is extremely challenging due ...
Federico Loi   +9 more
doaj   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Defending clusters against critics [PDF]

open access: yes
In recent years, almost everybody became interested in clusters. Companies, businessmen, scholars and policymakers alike seem to be fascinated by the clustering phenomenon and its potential to trigger, or to further stimulate, economic growth and ...
Sarmiza Pencea
core  

Atomic-Level Doping of Metal Clusters.

open access: yesAccounts of Chemical Research, 2018
Atomically precise noble metal (mainly silver and gold) nanoclusters are an emerging category of promising functional materials for future applications in energy, sensing, catalysis, and nanoelectronics.
A. Ghosh, O. Mohammed, O. Bakr
semanticscholar   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

Clustering and Community Detection With Imbalanced Clusters

open access: yesIEEE Transactions on Signal and Information Processing over Networks, 2017
Spectral clustering methods which are frequently used in clustering and community detection applications are sensitive to the specific graph constructions particularly when imbalanced clusters are present. We show that ratio cut (RCut) or normalized cut (NCut) objectives are not tailored to imbalanced cluster sizes since they tend to emphasize cut ...
Cem Aksoylar   +2 more
openaire   +2 more sources

An International Comparison of National Clusters [PDF]

open access: yes
The presence of innovative clusters may positively influence domestic economic growth. If it is possible to identify these clusters, economic growth may be increased even further by developing policy that stimulates innovative clusters.
Alex R. Hoen
core  

Clustering craftwork activities: An approach to promote regional development in a peripheral region of Portugal [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2011
Portugal’s globalization and integration had positive repercussionsat the economic and social development level, but simultaneously it evidencedregional asymmetries, demanding new explanatory models to lessen existent disparities.Recent paradigms value ...
Maria Manuela Natário   +2 more
doaj  

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