Results 91 to 100 of about 1,675,688 (289)

Whispering gallery modes in optical fibers based on reflectionless potentials

, 2015
We consider an optical fiber with nanoscale variation of the effective fiber radius supporting whispering gallery modes slowly propagating along the fiber, and reveal that the radius variation can be designed to support reflectionless propagation of ...
Suchkov, Sergey V., Sukhorukov, Andrey A., Sumetsky, Mikhail   +2 more
core   +1 more source

Analytical computation of the epidemic threshold on temporal networks [PDF]

, 2015
The time variation of contacts in a networked system may fundamentally alter the properties of spreading processes and affect the condition for large-scale propagation, as encoded in the epidemic threshold.
Colizza, Vittoria, Ferreri, Luca, Poletto, Chiara, Valdano, Eugenio   +3 more
core   +4 more sources

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

Molecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone, James Dunford, Eleanor Calcutt, Vicki Gamble, Filiz Senbabaoglu Aksu, Lorena Ligammari, Georgina Wherry, Giorgia Gaeta, John C. Christianson, Adrienne M. Flanagan, Udo Oppermann, Adam P. Cribbs   +11 more
wiley   +1 more source

Soil CO2 emission of sugarcane fields as affected by topography Emissão de CO2 do solo sob cultivo de cana-de-açúcar em função da topografia

Scientia Agricola, 2009
The spatial and temporal variation of soil CO2 emission is influenced by several soil attributes related to CO2 production and its diffusion in the soil.
Liziane de Figueiredo Brito, José Marques Júnior, Gener Tadeu Pereira, Zigomar Menezes Souza, Newton La Scala Júnior   +4 more
doaj   +1 more source

Spatio-temporal variation in European starling reproductive success at multiple small spatial scales [PDF]

, 2015
Funding Information This work received funding from the Natural Environment Research Council, Fair Isle Bird Observatory Trust and the Royal Society.
Aparicio, Arlt, Banda, Blondel, Burnham, Chave, Chivers, Cornell, Cornulier, Coulson, Coulson, Coulson, Cowen, Donovan, Feare, Fernandez-Juricic, Fortescue, Gaillard, Hanski, Husby, Johnson, Keyser, Knegt, Krüger, Levin, Mcclaren, McPeek, Murphy, Nagy, Nystrand, Orians, Ozgul, Paradis, Pulliam, Pulliam, R Development Core Team, Reid, Reid, Reid, Rodenhouse, Roos, Russell, Saether, Saether, Sandel, Sandel, Saracco, Sergio, Sim, Siriwardena, Smith, Sonsthagen, Steen, Sutherland, Talley, Templeton, Thomas, Thompson, Tschumi, Venables, Vásquez, Wheatley, Whittingham, Wiens, Wilson, Yeager, Zuur   +66 more
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

LA SITUATION DES ÉCREVISSES EN FRANCE RÉSULTATS DES ENQUÊTES NATIONALES RÉALISÉES ENTRE 1977 ET 2006 PAR LE CONSEIL SUPÉRIEUR DE LA PÊCHE

Knowledge and Management of Aquatic Ecosystems, 2007
Depuis la fin du XIX° siècle, la distribution des écrevisses en France a connu de profonds bouleversements, et l’introduction d’écrevisses allochtones en provenance essentiellement du continent nord-américain, a irrémédiablement modifié le paysage ...
COLLAS M., JULIEN C., MONNIER D.
doaj   +1 more source

Connecting Resource Tracking by Frugivores to Temporal Variation in Seed Dispersal Networks

Frontiers in Ecology and Evolution, 2017
Mutualistic interactions between species are crucial for the maintenance and functioning of the community. Current research has shown the importance of not only understanding the structure of these mutualistic interaction networks but also their temporal
Jason M. Gleditsch, Amy M. Hruska, Jeffrey T. Foster   +2 more
doaj   +1 more source

Temporal variation in prehistoric Nubian crania [PDF]

American Journal of Physical Anthropology, 1976
AbstractMuch of the earlier work on the prehistory of Sudanese Nubia has emphasized discontinuity between early Nubian populations. However, recent investigations suggest the converse ‐ that a remarkable degree of cultural and biological continuity exists among indigenous Nubian groups, perhaps as far back as the Paleolithic.
openaire   +2 more sources

Phenotypic and genotypic characterization of single circulating tumor cells in the follow‐up of high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Single circulating tumor cells (sCTCs) from high‐grade serous ovarian cancer patients were enriched, imaged, and genomically profiled using WGA and NGS at different time points during treatment. sCTCs revealed enrichment of alterations in Chromosomes 2, 7, and 12 as well as persistent or emerging oncogenic CNAs, supporting sCTC identity.
Carolin Salmon, Rui P. L. Neves, Nikolas H. Stoecklein, Sven‐Thorsten Liffers, Jens Siveke, Jan D. Kuhlmann, Pauline Wimberger, Paul Buderath, Rainer Kimmig, Sabine Kasimir‐Bauer   +9 more
wiley   +1 more source