Results 101 to 110 of about 89,525 (293)

Insights into vertebrate diversity of Qatar from first systematic camera trapping

Global Ecology and Conservation
Biodiversity in arid regions is typically low, with limited functional redundancy, making ecosystems vulnerable to species loss. In the Arabian Peninsula, particularly in Qatar, terrestrial biodiversity data remain scarce, hampering conservation and ...
Shakeel Ahmad, Muhammad Ali Nawaz, Fatima Alkhayat, Salma AlHajri, Ramaswamy Narayanaswamy, Anisa Hassan, Shahena Akhter, Amal Faysal Omar, Nafisa Fadulelmula, Raghad Al-Taweel, Reema El Hassan   +10 more
doaj   +1 more source

Evaluierung von sechs Fotofallenmodellen hinsichtlich der Eignung für Fang-Wiederfang Methoden beim Eurasischen Luchs (Lynx lynx) [PDF]

, 2013
Digital outdoor cameras are increasingly used in wildlife research because they allow species inventories, population estimates, and behavior or activity observations.
Heurich, Marco, Knauer, Felix, Weingarth, Kirsten, Zimmermann, Fridolin   +3 more
core  

Adaptive Twisting Metamaterials

Advanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri, Maria L. Gatto, Edoardo Mancini, Donato Orlandi, Daniele Cortis, Marco Sasso, Shanmugam Kumar   +6 more
wiley   +1 more source

Black-bellied pangolin Phataginus tetradactyla documented in Deng Deng National Park, Cameroon, using camera traps

Oryx
Information on pangolin life history and ecology is becoming increasingly available in African countries through community-based surveys and camera-trapping.
Ghislain F. Difouo, Franklin T. Simo, Sévilor Kekeunou, David Olson, Daniel J. Ingram   +4 more
doaj   +1 more source

Optical interface created by laser-cooled atoms trapped in the evanescent field surrounding an optical nanofiber

, 2010
Trapping and optically interfacing laser-cooled neutral atoms is an essential requirement for their use in advanced quantum technologies. Here we simultaneously realize both of these tasks with cesium atoms interacting with a multi-color evanescent field
A. Rauschenbeutel, C. Monroe, D. Reitz, E. Vetsch, F. Warken, G. Sagué, H. J. Metcalf, J. P. Dowling, R. Schmidt, S. T. Dawkins   +9 more
core   +2 more sources

Artificial Symbiosis for Bulk Production of Bacterial Cellulose Composites

Advanced Materials, EarlyView.
Co‐cultivation of the cellulose‐producing bacterium with the microalga enables bulk formation of bacterial cellulose under static incubation, with photosynthetically active oxygen‐generating sites throughout the medium. This symbiotic platform supports 3D cellulosic constructs with geometries dictated by the vessel shape.
Kui Yu, Sing Teng Chua, Ran Zhao, Alyssa Smith, Michael Kühl, Alison G. Smith, Tom Ellis, Silvia Vignolini   +7 more
wiley   +1 more source

Camera traps as a tool for Carnivore conservation in a mosaic of Protected Areas in the Pantanal wetlands, Brazil

Nature Conservation Research: Заповедная наука, 2018
Although known globally for its biodiversity, only around 5% of the Brazilian Pantanal is protected. The Network for Protection and Conservation of Amolar Mountain Ridge is an informal initiative that legally protects over 2000 km2 of the Pantanal biome.
Grasiela Porfirio, Vania C. Foster, Pedro Sarmento, Carlos Fonseca   +3 more
doaj   +1 more source

Processing carbon nanotubes with holographic optical tweezers

, 2004
We report the first demonstration that carbon nanotubes can be trapped and manipulated by optical tweezers. This observation is surprising because individual nanotubes are substantially smaller than the wavelength of light, and thus should not be ...
Ashkin, Ashkin, Cheong, Curtis, Dai, Daniel M. Mueth, David G. Grier, Dufresne, Evan Tanner, Gahagan, Grier, He, Joseph Plewa, Korda, Lim, Nagahara, O’Connell, Simpson, Suehiro, Yu   +19 more
core   +1 more source

Porous Iridium Oxide Inverse Opal Catalysts Enable Efficient PEM Water Electrolysis

Advanced Materials, EarlyView.
Porous iridium‐based inverse opal (IrOx‐IO) structures are introduced as high‐performance, unsupported PEM‐WE anode catalysts. Their electrochemical behavior is analyzed through porosity/surface area tuning, voltage breakdown, and circuit modeling.
Sebastian Möhle, Kerolus Nasser Nagi Nasralla, Jakub Drnec, William Chèvremont, Peter Strasser   +4 more
wiley   +1 more source

Sherlock—A flexible, low‐resource tool for processing camera‐trapping images

Methods in Ecology and Evolution
The use of camera traps to study wildlife has increased markedly in the last two decades. Camera surveys typically produce large data sets which require processing to isolate images containing the species of interest.
Matthew J. Penn, Verity Miles, Kelly L. Astley, Cally Ham, Rosie Woodroffe, Marcus Rowcliffe, Christl A. Donnelly   +6 more
doaj   +1 more source