Results 41 to 50 of about 32,490 (183)

Climate Tolerances and Habitat Requirements Jointly Shape the Elevational Distribution of the American Pika (Ochotona princeps), with Implications for Climate Change Effects. [PDF]

open access: yesPLoS ONE, 2015
Some of the most compelling examples of ecological responses to climate change are elevational range shifts of individual species, which have been observed throughout the world.
Leah H Yandow   +2 more
doaj   +1 more source

Thermally assisted domain walls quantum tunneling at the high temperature range

open access: yes, 1998
A theoretical and numerical investigations of the quantum tunneling of the domain walls in ferromagnets and weak ferromagnets was performed taking into account the interaction between walls and thermal excitations of a crystal.
  +15 more
core   +1 more source

Characterizing sub-surface microclimates used by a climate-sensitive species, the American pika [PDF]

open access: yes, 2014
The American pika is uniquely constrained to habitats of blocky debris. In this habitat, the availability of temperate sub-surface microclimates allows this temperature-sensitive species to survive the variable conditions of surface climate.
Howe, James
core   +2 more sources

The psychology of gestures and gesture-like movements in non-human primates [PDF]

open access: yes, 2014
Research into gestural communication of nonhuman primates is often inspired by an interest in the evolutionary roots of human language. The focus on intentionally used behaviors is central to this approach that aims at investigating the cognitive ...
Liebal, Katja
core   +1 more source

Prioritization of measures to reduce the risks of man-made emergencies taking into account the contribution of scenarios to overall uncertainty

open access: yesВестник Университета гражданской защиты МЧС Беларуси
Purpose. Development of a quantitative measure of the contribution of emergency scenarios to the overall uncertainty of the risk of man-made emergencies at fuel and energy facilities, based on the entropy of the system, the informational significance of ...
Romina M. Kretsu, Anatoliy V. Rybakov
doaj   +1 more source

Pika burrow and zokor mound density and their relationship with grazing management and sheep production in alpine meadow

open access: yesEcosphere, 2020
Plateau pikas (Ochotona curzoniae) and plateau zokors (Myospalax baileyi) occur naturally in the alpine meadow of the Qinghai–Tibet Plateau (QTP). Their feeding and burrowing activities affect plant composition and soil properties (e.g., soil carbon ...
Yingxin Wang   +6 more
doaj   +1 more source

Natural selection and adaptive evolution of leptin in the ochotona family driven by the cold environmental stress. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND: Environmental stress can accelerate the evolutionary rate of specific stress-response proteins and create new functions specialized for different environments, enhancing an organism's fitness to stressful environments. Pikas (order Lagomorpha)
Jie Yang   +7 more
doaj   +1 more source

PIKA: A Network Service for Multikernel Operating Systems [PDF]

open access: yes, 2014
PIKA is a network stack designed for multikernel operating systems that target potential future architectures lacking cache-coherent shared memory but supporting message passing. PIKA splits the network stack into several servers that communicate using a
Agarwal, Anant   +7 more
core   +1 more source

Session Types Go Dynamic or How to Verify Your Python Conversations

open access: yes, 2013
This paper presents the first implementation of session types in a dynamically-typed language - Python. Communication safety of the whole system is guaranteed at runtime by monitors that check the execution traces comply with an associated protocol ...
Neykova, Rumyana
core   +2 more sources

How can a multimodal approach to primate communication help us understand the evolution of communication? [PDF]

open access: yes, 2013
Scientists studying the communication of non-human animals are often aiming to better understand the evolution of human communication, including human language.
Burrows, A.   +3 more
core   +3 more sources

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