Results 41 to 50 of about 103,193 (342)

Interfacial Contact Engineering Enables Giant‐Performance Semiconductor Nanomembrane Optoelectronic Devices

Advanced Functional Materials, EarlyView.
This work investigates modifying interfacial contacts in realizing giant‐performance semiconductor nanomembrane optoelectronics. Strategies, including surface reaction and buffer layer work‐function modulation, are explored to boost the Schottky barrier. An emerging material of YbOx is utilized for near‐ideal Ohmic contact.
Yibo Zhang, Gloria Vytas, Haozhe Wang, Sara Almenabawy, Zheng‐Hong Lu, Nazir P. Kherani   +5 more
wiley   +1 more source

Size matters: Natural experiments suggest the dear enemy effect is moderated by pack size in African wild dogs

Ecology and Evolution
Remote monitoring of communal marking sites, or latrines, provides a unique opportunity to observe undisturbed scent marking behaviour of African wild dogs (Lycaon pictus).
Megan J. Claase, Mike I. Cherry, J. Weldon McNutt, Peter J. Apps, Neil R. Jordan   +4 more
doaj   +1 more source

Exploring the coevolution of predator and prey morphology and behavior [PDF]

Proceedings Artificial Life 15 (C. Gershenson, T. Froese, J.M. Sisqueiros, W. Aguilar, E.J. Izquierdo, H. Sayama, eds.) MIT Press (Cambridge, MA, 2016), pp. 250-258, 2016
A common idiom in biology education states, "Eyes in the front, the animal hunts. Eyes on the side, the animal hides." In this paper, we explore one possible explanation for why predators tend to have forward-facing, high-acuity visual systems. We do so using an agent-based computational model of evolution, where predators and prey interact and adapt ...
arxiv   +1 more source

Polymer Brush Growth by Surface‐Initiated Ring‐Opening Polymerization from a Cross‐Linked Polymer Thin Film

Advanced Functional Materials, EarlyView.
A stable cross‐linked ultra‐thin polymer coating for surface‐initiated ring‐opening polymerization (SI‐ROP) of hexamethylcyclotrisiloxane and ε‐caprolactone for growth of high grafting density poly(dimethyl siloxane) and poly(caprolactone) brushes is developed.
Miguel Betancourt‐Ponce, Bharathan Govindarajan, Jacob Pike, Padma Gopalan   +3 more
wiley   +1 more source

A novel candidate species of Anaplasma that infects avian erythrocytes

Parasites & Vectors, 2018
Background Anaplasma spp. are Gram-negative obligate intracellular bacteria transmitted by ticks. Even though numerous studies have detected DNA from Anaplasma spp.
Ralph Eric Thijl Vanstreels, Michael J. Yabsley, Nola J. Parsons, Liandrie Swanepoel, Pierre A. Pistorius   +4 more
doaj   +1 more source

Is landscape of fear of macroinvertebrate communities a major determinant of mesopredator and prey activity?

Knowledge and Management of Aquatic Ecosystems, 2020
Macroinvertebrate foragers play an important role on the trophic structures of freshwater environments, and multiple trophic levels occur among macroinvertebrate communities providing very interesting scenarios for testing scientific hypotheses.
Manenti Raoul, Barzaghi Benedetta
doaj   +1 more source

Rigid Fluorescent Indacenetetraone‐Based Semiconducting Polymers via Knoevenagel Condensation

Advanced Functional Materials, EarlyView.
New donor–acceptor polymers prepared by Knoevenagel condensation of indacenedithiophene‐ and indacenedifuran‐based aldehydes reveal an exceptionally rigid backbone, which is manifested in the remarkably narrow absorption and emission bands in red to near‐infrared region.
So‐Huei Kang, Pegah Ghamari, Cory Ruchlin, Yuxuan Che, Zhechang He, Quentin Chan, Federico Rosei, Dmytro F. Perepichka   +7 more
wiley   +1 more source

A piecewise deterministic model for a prey-predator community [PDF]

Ann. Appl. Probab., Volume 26, Number 6 (2016), 3491-3530, 2015
We are interested in prey-predator communities where the predator population evolves much faster than the prey's (e.g. insect-tree communities). We introduce a piecewise deterministic model for these prey-predator communities that arises as a limit of a microscopic model when the number of predators goes to infinity.
arxiv   +1 more source

Cell Membrane Vesicle Camouflaged Artificial Cells

Advanced Functional Materials, EarlyView.
Artificial cells camouflaged with a cell membrane vesicle coating are able to assemble into synthetic aggregates that exhibit rudimentary communication capabilities. Additionally, when these artificial cells are equipped with antioxidant capabilities, they are able to protect the intracellular homeostasis in HepG2 cells present in semi‐synthetic ...
Paula De Dios Andres, Stefan Pendlmayr, Noga Gal, Cathrine Abild Meyer, Cecilie Ryberg, Olav Vestrheim, Noel Angelo Kalacas, Fatih Demir, Markus M. Rinschen, Karsten Haupt, Rajeshwar Prosad Mookerjee, Brigitte Städler   +11 more
wiley   +1 more source

An Integrated Landscape of Fear and Disgust: The Evolution of Avoidance Behaviors Amidst a Myriad of Natural Enemies

Frontiers in Ecology and Evolution, 2020
Fear of natural enemies in non-human animals is a concept dating back to the time of Darwin. Now recognized as a non-consumptive effect, the ecological and evolutionary impact of fear has been studied in a number of predator-prey systems within the last ...
Jean-François Doherty, Brandon Ruehle
doaj   +1 more source