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Microbial mats are highly structured and diverse communities, and one of the earliest-known life assemblages. Mat bacteria interact within an environment marked by strong geochemical gradients and fluctuations. We examined natural mat systems for the presence of autoinducers involved in quorum sensing, a form of cell-cell communication. Our results revealed(More)
BACKGROUND Substance abuse is a major determinant of morbidity, mortality, and health care resource consumption. We evaluated a screening, brief intervention, and referral to treatment (SBIRT) program, implemented in 9 hospital emergency departments (ED) in Washington State. METHODS Working-age, disabled Medicaid patients who were screened and received a(More)
This study examined two issues. One, whether individuals with possible substance use disorders were more likely to be admitted to specialized chemical dependency (CD) treatment after receiving a brief intervention (BI) - either alone or in combination with other services - than similar individuals who did not receive a BI. Two, whether participation in(More)
Chemical communication in bacteria, sometimes called quorum sensing, is a fundamental microbial process that is based on the exchange of molecular signals between cells. The signaling molecules involved in this process are thermodynamically unstable in some environments and their degradation affects microbial communication. This work reports the oxidation(More)
Administrative data provide a rich resource for improving our understanding of individuals with substance use disorders. The validation of administrative proxies for moderate or high risk alcohol or drug (AOD) use could enhance the ability to carry out rigorous observational research (for example, for use in the construction of comparison groups). This(More)
At present, plenty of management information systems were constructed in universities and colleges, but the problem of "information islands", deriving from these systems which adopted different software and hardware platforms and network architectures of different companies, is brought up. Application Integration based on Service-Oriented Architecture(More)
The purpose of this study was to use administrative records of admissions to substance abuse treatment to construct episodes of care for publicly funded adolescent clients in Washington State, and then to analyze two important outcomes after an index episode: readmissions to treatment and criminal convictions (including felony convictions and any(More)
A dual-band power amplifier (PA) which operates at two specific frequencies of 1.8GHz and 2.0GHz simultaneously is designed. The input matching circuit has one access with a special matching network which resonates at two frequencies. The output matching circuit is the simple L-type matching network and was designed under the guide of load-pull methodology.(More)
—As one of the most important coordination mechanisms, Contract Net Protocol (CNP) has been extensively studied in many fields, where many other techniques are also used to improve the decision quality. CNP suffers from multiple disadvantageous limitations in the open environment of MAS, so the trust model, a fundamental issue in large-scale open(More)