Results 51 to 60 of about 612,199 (302)

Classification-based resource selection [PDF]

Proceedings of the 18th ACM conference on Information and knowledge management, 2009
In some retrieval situations, a system must search across multiple collections. This task, referred to as federated search, occurs for example when searching a distributed index or aggregating content for web search. Resource selection refers to the subtask of deciding, given a query, which collections to search.
Jaime Arguello, Jamie Callan, Fernando Diaz 0001   +2 more
openaire   +1 more source

Transcending scale dependence in identifying habitat with resource selection functions

, 2012
Multi-scale resource selection modeling is used to identify factors that limit species distributions across scales of space and time. This multi-scale nature of habitat suitability complicates the translation of inferences to single, spatial depictions ...
Decesare, N.J., Wheatley, M., Musiani, M., Bradley, M., Morgantini, L.E., Neufeld, L., Schmiegelow, F., Smith, K.G., Hervieux, D., Whittington, J., McDermid, G.J., Hebblewhite, M.   +11 more
core   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Seasonal patterns of habitat use by a mesopredator in boreal forest landscapes fragmented by fire

Ecosphere
Wildfire is the most impactful disturbance regime in the North American boreal region, driving the structure and composition of forests across the region.
Derek A. Arnold, Greg A. Breed, Jared S. Laufenberg, Nathan D. Berg, Mark R. Bertram, Bradley D. Scotton, Knut Kielland   +6 more
doaj   +1 more source

Den‐site characteristics and selection by brown bears (Ursus arctos) in the central Brooks Range of Alaska

Ecosphere, 2019
Selection and use of dens is a critical behavioral adaption of bears (Ursus spp.) to survive extended periods of resource limitation. We analyzed selection of den sites by brown bears (Ursus arctos) in an arctic montane environment from 2014 to 2017.
Mathew S. Sorum, Kyle Joly, Adam G. Wells, Matthew D. Cameron, Grant V. Hilderbrand, David D. Gustine   +5 more
doaj   +1 more source

Strategic Resource Selection with Homophilic Agents

Proceedings of the Thirty-Second International Joint Conference on Artificial Intelligence, 2023
The strategic selection of resources by selfish agents is a classical research direction, with Resource Selection Games and Congestion Games as prominent examples. In these games, agents select available resources and their utility then depends on the number of agents using the same resources.
Jonathan Gadea Harder, Simon Krogmann, Pascal Lenzner, Alexander Skopalik   +3 more
openaire   +4 more sources

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Home Range and Habitat Selection of Feral Horses (Equus ferus f. caballus) in a Mountainous Environment: A Case Study from Northern Greece

Land
The spatial ecology of feral horses (Equus ferus f. caballus) in Greece has never been studied before, including home range size and habitat selection. We tracked two mares fitted with global positioning system collars between September 2020 and August ...
Dimitrios E. Bakaloudis, Charalambos T. Thoma, Konstantina N. Makridou, Evangelos G. Kotsonas, Georgios Arsenos, Alexandros Theodoridis, Vasileios Kontsiotis   +6 more
doaj   +1 more source