نتایج جستجو برای: invader species
تعداد نتایج: 548714 فیلتر نتایج به سال:
In this paper we analyse stochastic models of the competition between two resource-limited cell populations which differ in their response to nutrient availability: the resident population exhibits a switch-like response behaviour while the invading population exhibits a bistable response. We investigate how noise in the intracellular regulatory pathways and cell motility influence the fate of ...
Space Invader is a static analysis tool that aims to perform accurate, automatic verification of the way that programs use pointers. It uses separation logic assertions [10,11] to describe states, and works by performing a proof search, using abstract interpretation to enable convergence. As well as having roots in separation logic, Invader draws on the fundamental work of Sagiv et. al. on shap...
In this paper, we investigate the problem of designing a spectrum scanning strategy to detect an intelligent Invader who wants to utilize spectrum undetected for his/her unapproved purposes. To deal with this problem we model the situation as two games, between a Scanner and an Invader, and solve them sequentially. The first game is formulated to design the optimal (in maxmin sense) scanning al...
Species introductions are a major concern for ecosystem functioning, socio-economic wealth, and human well-being. Preventing proved to be the most effective management strategy, various tools such as species distribution models risk assessment protocols have been developed or applied this purpose. These approaches use information on predict its potential invasiveness impact in case of introduct...
BACKGROUND The PCR-Invader assay is a robust, homogeneous assay that has been shown to be highly sensitive and specific in genotyping single-nucleotide polymorphism (SNP) markers. In this study, we introduce two changes to improve the assay: (a) we streamline the PCR-Invader method by assaying both alleles for each SNP in one reaction; and (b) we reduce the cost of the method by adopting fluore...
The feasibility of large-scale genome-wide association studies of complex human disorders depends on the availability of accurate and efficient genotyping methods for single nucleotide polymorphisms (SNPs). We describe a new platform of the invader assay, a biplex assay, where both alleles are interrogated in a single reaction tube. The assay was evaluated on over 50 different SNPs, with over 2...
CRISPR-Cas is a prokaryotic immune system built from capture and integration of invader DNA into CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) loci, termed 'Adaptation', which is dependent on Cas1 and Cas2 proteins. In Escherichia coli, Cascade-Cas3 degrades invader DNA to effect immunity, termed 'Interference'. Adaptation can interact with interference ('primed'), or is in...
Terrestrial invasive plants are a global problem and are becoming ubiquitous components of most ecosystems. They are implicated in altering disturbance regimes, reducing biodiversity, and changing ecosystem function, sometimes in profound and irreversible ways. However, the ecological impacts of most invasive plants have not been studied experimentally, and most research to date focuses on few ...
Invasive and native plant species compete for resources in similar pools, with disturbances often favoring the invader. Yet, increased climate variability may be shifting the competitive edge back toward the natives. We conducted field studies in perennial grasslands to determine the effects of clipping and drought on resource aVailability (light and moisture) and subsequent establishment of Ca...
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