نتایج جستجو برای: range establishment
تعداد نتایج: 728328 فیلتر نتایج به سال:
Temperate forest species, including Fagus crenata Blume, have been experiencing distributional shifts during the climate oscillation throughout Holocene epoch. This review describes distinctive context of F. populations at northern range from perspective past distribution shifts, future expansion predictions, biotic and abiotic interactions in population establishment, vegetation characteristic...
Severe declines in biodiversity have been well documented for many taxonomic groups due to intensification of agricultural practices. Establishment and appropriate management of arable field margins can improve the diversity and abundance of invertebrate groups; however, there is much less research on field margins within grassland systems. Three grassland field margin treatments (fencing off t...
Decentralisation has been described as an empty concept that lacks clarity. Yet there is an enduring interest in the process of decentralisation within health systems and public services more generally. Many claims about the benefits of decentralisation are not supported by evidence. It may be useful as an organising framework for analysis of health systems but in this context it lacks conceptu...
Hyper-kyphosis anomalies are common disorders of spine. The aim of this study was to Establishment of dynamic postural assessment indicators in young girls with and without hyper-kyphosis. In the study, 200 girls were selected according to the angle of kyphosis they were divided into two groups comprising of with and without Hyper-kyphosis. Evaluate dynamic posture, the tests back flattening,...
We identify a type of pattern formation in spatially distributed active systems. We simulate one-dimensional two-component systems with predator-prey local interaction and pursuit-evasion taxis between the components. In a sufficiently large domain, spatially uniform oscillations in such systems are unstable with respect to small perturbations. This instability, through a transient regime appea...
The paper addresses two problems of Bluetooth which arise in situations where a user device performs transactions with a specific server device out of a number of similar devices in the proximity, such as ticket machines or point-of-sales terminals. Firstly, the server that a connection should be set up with, needs to be uniquely identified and selected. Secondly, with the current Bluetooth pro...
MCCUNE, B., and T. F. H. ALLEN. 1985. Forest dynamics in the Bitterroot Canyons, Montana. Can. J. Bot. 63: 377-383. Both shade-tolerant and shade-intolerant tree species may dominate young stands in canyon-bottom forests of the Bitterroot Range. Subsequent dynamics depend on growth characteristics of the colonizing species. Thus, much of the compositional variation arises at stand establishment...
Bluetooth provides communication between devices via radio frequency with a range of around 10 meters. The Bluetooth specification includes a set of adopted and fundamental protocols. Baseband is a fundamental protocol that is responsible for the connection establishment among a master and up to seven slave devices. This paper describes a model of the Baseband connection establishment protocol ...
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