نتایج جستجو برای: disturbed
تعداد نتایج: 15849 فیلتر نتایج به سال:
Ants provide a common dispersal vector for a variety of plants in many environments through a process known as myrmecochory. The efficacy of this dispersal mechanism can largely determine the ability of species to track changes in habitat availability caused by ongoing land-use and associated disturbances, and can be critical for population gene flow and persistence. Field studies were conducte...
The search for tinnitus mechanisms is a speculative endeavour; a broad number of mechanisms may cause the tinnitus symptom and numerous tinnitus models have been proposed in recent years. There is no objective methods for detecting or evaluating the severity of tinnitus and severe tinnitus is usually defi ned as a tinnitus that interferes with sleep, work and social life. Patients, who exhibit ...
The NP-hard graph partitioning problem is an important subtask in load balancing and many other applications. It requires the division of a graph’s vertex set into P equally sized subsets such that some objective function is optimized. State-of-the-art libraries addressing this problem show several deficiencies: they are hard to parallelize, focus on small edge-cuts instead of few boundary vert...
The components and reactions of the fibrinolysis system are well understood. The pathway has fewer reactants and interactions than coagulation, but the generation of a complete quantitative model is complicated by the need to work at the solid-liquid interface of fibrin. Diagnostic tools to detect disease states due to malfunctions in the fibrinolysis pathway are also not so well developed as i...
In this study, a simplified computational model of pile vertical vibration was developed. The model was based on the inhomogeneous radial disturbed zone of soil in the vicinity of a pile disturbed by pile driving. The model contained two regions: the disturbed zone, which was located in the immediate vicinity of the pile, and the undisturbed region, external to the disturbed zone. In the model,...
چکیده ندارد.
OBJECTIVE Although atherosclerosis is associated with systemic risk factors such as age, high cholesterol, and obesity, plaque formation occurs predominately at branches and bends that are exposed to disturbed patterns of blood flow. The molecular mechanisms that link disturbed flow-generated mechanical forces with arterial injury are uncertain. To illuminate them, we investigated the effects o...
Spatial patterns and temporal dynamics of light distribution were investigated using lacunarity analysis, a multi-scale measure of spatial heterogeneity, in three mesic grasslands with different disturbance regimes. Frequency distributions of relative light intensity (RLI) were similar for the two non-disturbed grasslands, despite different composition (forbs vs. caespitose grass) resulting fro...
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