Results 31 to 40 of about 13,672 (168)

Noise reduction in photon counting by exploiting spatial correlations

, 2017
Joint photocount distributions of a weak twin beam acquired by an iCCD camera are analyzed with respect to the beam spatial correlations. A method for extracting these correlations from the experimental joint photocount distributions is suggested using a
Haderka, Ondrej, Michalek, Vaclav, Perina Jr, Jan   +2 more
core   +1 more source

Nest-Site Selection by Female Black-Capped Chickadees: Settlement Based on Conspecific Attraction? [PDF]

, 1999
Female Black-capped Chickadees (Poecile atricapillus) solicit extrapair copulations (EPCs) from neighboring high-ranking males, and these EPCs result in extrapair young.
Otter, Ken A., Ramsay, Scott M., Ratcliffe, Laurene M.   +2 more
core   +3 more sources

Comparison between lek counts and bioacoustic recording for monitoring Western Capercaillie (Tetrao urogallus L.) [PDF]

Journal of Ornithology, 2019
Bioacoustics is the study of animal sounds. The importance of bioacoustics for biological research and the survey and monitoring of bird populations is becoming increasingly recognized. This is particularly the case for the capture of long-term data on rare species that are prone to disturbance or are otherwise difficult to survey.
openaire   +2 more sources

How many leks does it take? Minimum samples sizes for measuring local-scale conservation outcomes in Greater Sage-Grouse

Avian Conservation and Ecology, 2020
Monitoring population response to conservation actions, such as habitat management, is critical to evaluate conservation outcomes. Greater Sage-Grouse (Centrocercus urophasianus) has been the recipient of substantial recent conservation efforts in North ...
Erik J. Blomberg, Christian A. Hagen
doaj  

Efficacy of two Variations on an Aerial Lek-Count Method for Greater Sage-Grouse

Western North American Naturalist, 2009
Greater Sage-Grouse (Centrocercus urophasianus) is a species of concern, and accurate population data are needed to monitor conservation management efforts. Conventional, ground-based lek counts are labor-intensive, expensive, and have several sources of potential error and bias, including the practical limits on number and distribution of leks counted.
D.T. Booth, S.E. Cox, G.E. Simonds, B. Elmore   +3 more
openaire   +2 more sources

The average X-ray/gamma-ray spectrum of radio-quiet Seyfert 1s [PDF]

, 1996
We have obtained the average 1--500 keV spectrum of radio-quiet Seyfert 1s using data from EXOSAT, Ginga, HEAO, and GRO/OSSE. The spectral fit to the combined average EXOSAT and OSSE data is fully consistent with that for Ginga and OSSE, confirming ...
George, I. M., Gondek, D., Gruber, E., Johnson, W. N., Magdziarz, P., McNaron-Brown, K., Smith, D., Zdziarski, A. A.   +7 more
core   +2 more sources

Evaluating the Potential of Aerial Infrared as a Lek Count Method for Prairie Grouse

Journal of Fish and Wildlife Management, 2015
AbstractWildlife biologists use counts of birds attending traditional breeding grounds (i.e., leks) to develop indices of population trends in several grouse species. Standardized lek counts for sage-grouse Centrocercus spp. provide information about population trends by allowing comparison of counts across their range.
Gifford L. Gillette, Kerry P. Reese, John W. Connelly, Chris J. Colt, Jeffrey M. Knetter   +4 more
openaire   +1 more source

Critical Casimir Interactions and Percolation: the quantitative description of critical fluctuations

, 2018
Casimir forces in a critical media are produced by spatial suppression of order parameter fluctuations. In this paper we address the question how fluctuations of a critical media relates the magnitude of critical Casimir interactions.
Vasilyev, Oleg A.
core   +1 more source

Combined medial collateral ligament and posterior oblique ligament reconstruction demonstrates favourable patient‐reported outcomes and medial knee stability in Grade III injuries: A systematic review

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To assess clinical and functional outcomes of combined medial collateral ligament and posterior oblique ligament (MCL–POL) reconstruction in isolated and multiligamentous Grade III medial knee injuries. Methods A systematic review was conducted according to PRISMA and Cochrane guidelines. MEDLINE, EMBASE and CENTRAL were searched to 13
Ayomide Michael Ade‐Conde, Michelle Cruickshank, Marc Daniel Bouchard, Prushoth Vivekanantha, Meshal Alomari, Darren de SA, Jeffrey Kay   +6 more
wiley   +1 more source

Higher-order sub-Poissonian-like nonclassical fields: Theoretical and experimental comparison

, 2017
Criteria defining higher-order sub-Poissonian-like fields are given using five different quantities: moments of (I) integrated intensity, (II) photon number, (III) integrated-intensity fluctuation, (IV) photon-number fluctuation, and (V) elements of ...
Haderka, Ondrej, Michalek, Vaclav, Perina Jr, Jan   +2 more
core   +1 more source