Results 11 to 20 of about 834,405 (345)

Uncertainty Traps [PDF]

open access: yesThe Quarterly Journal of Economics, 2014
Abstract We develop a theory of endogenous uncertainty and business cycles in which short-lived shocks can generate long-lasting recessions. In the model, higher uncertainty about fundamentals discourages investment. Since agents learn from the actions of others, information flows slowly in times of low activity and uncertainty remains ...
Pablo Fajgelbaum   +2 more
openaire   +4 more sources

Trapping reaction with mobile traps [PDF]

open access: yesPhysical Review E, 2002
We present the Monte Carlo results for the two-species trapping reaction A+B-->B with diffusing A and B on lattices in one, two, and three dimensions. We use an algorithm that permits one to simulate the survival probabilities of A particles down to
Vishal, Mehra, Peter, Grassberger
openaire   +2 more sources

Turning a Pest into a Natural Enemy: Removing Earwigs from Stone Fruit and Releasing Them in Pome Fruit Enhances Pest Control

open access: yesInsects, 2023
The European earwig Forficula auricularia (L.) (Dermaptera: Forficulidae) is an omnivorous insect that is considered a minor pest of stone fruit and a key predator of pests in pome fruit orchards. In many pome fruit orchards, earwigs are absent or in low
Aldo Hanel   +5 more
doaj   +1 more source

Co-management of the migratory caribou herds in northern Québec: The perspective of the Hunting, Fishing and Trapping Coordinating Committee

open access: yesRangifer, 2012
Aboriginal people have a long relationship with caribou, and caribou - especially the large migratory herds- cross aboriginal territories and jurisdictional boundaries.
Nicole Gougeon
doaj   +1 more source

New Canadian and Provincial Records of Coleoptera Resulting from Annual Canadian Food Inspection Agency Surveillance for Detection of Non-Native, Potentially Invasive Forest Insects

open access: yesInsects, 2022
The arrival and establishment of adventive, invasive forest insects are a threat to the health, diversity, and productivity of forests in Canada and the world at large, and their early detection is essential for successful eradication and management. For
Graham S. Thurston   +6 more
doaj   +1 more source

Semiclassical resolvent estimates at trapped sets [PDF]

open access: yes, 2012
We extend our recent results on propagation of semiclassical resolvent estimates through trapped sets when a priori polynomial resolvent bounds hold. Previously we obtained non-trapping estimates in trapping situations when the resolvent was sandwiched ...
Datchev, Kiril, Vasy, András
core   +5 more sources

Trapped Surfaces [PDF]

open access: yesInternational Journal of Modern Physics D, 2011
I review the definition and types of (closed) trapped surfaces. Surprising global properties are shown, such as their "clairvoyance" and the possibility that they enter into flat portions of the spacetime. Several results on the interplay of trapped surfaces with vector fields and with spatial hypersurfaces are presented.
openaire   +2 more sources

Optical trapping [PDF]

open access: yesReview of Scientific Instruments, 2004
Since their invention just over 20 years ago, optical traps have emerged as a powerful tool with broad-reaching applications in biology and physics. Capabilities have evolved from simple manipulation to the application of calibrated forces on—and the measurement of nanometer-level displacements of—optically trapped objects.
Keir C, Neuman, Steven M, Block
openaire   +2 more sources

Comparative performance of traps for the Mediterranean fruit fly Ceratitis capitata Wiedemann (Diptera: Tephritidae) baited with female-targeted or male-targeted lures

open access: yesInternational Journal of Horticultural Science, 2007
Results of trapping trials in Italy confirmed that the non-sticky CSALOMON® VARs+ funnel trap was highly efficient for the capture of Mediterranean fruit fly (Ceratitis capitata Wiedemann) (Diptera: Tephritidae), when baited with either male-targeted ...
M. Tóth   +4 more
doaj   +1 more source

Monitoring and Biosurveillance Tools for the Brown Marmorated Stink Bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae)

open access: yesInsects, 2018
Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is an invasive pest of numerous agricultural crops with an increasing global distribution. Finding simple and reliable monitoring tools for H.
Angelita L. Acebes-Doria   +7 more
doaj   +1 more source

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