Bath salts: they are not what you think

Psychoactive bath salts are a relatively new group of designer drugs sold as tablets, capsules, or powder and pur-chased in places such as tobacco and convenience stores, gas stations, head shops, and the Internet. Bath salts are stimulant agents that mimic cocaine,lysergic acid diethylamide, methamphetamine, or methylenedioxymethamphetamine (ecstasy). The most common bath salts are the cathinone derivatives 3,4-methylenedioxypyrovalerone(MDPV), 4-methylmethcathinone(mephedrone), and 3,4-methylenedioxy-N-methylcathinone (methylone). The drugs cause intense stimulation, eu-phoria, elevated mood, and a pleasurable "rush" Tachycardia, hypertension,peripheral constriction, chest pain, hallucinations, paranoia, erratic behavior,inattention, lack of memory of substance use, and psychosis have been observed in those who have used bath salts. The U.S. Drug Enforcement Administration recently exercised an emergency authority to name three key ingredients in bath salts as Schedule I, thereby making them illegal to possess or sell in the United States. Nursing implications related to both clinical and educational settings are discussed.     

Unpacking Racial Socialization: Considering Female African American Primary Caregivers' Racial Identity

The relationship between female African American primary caregivers' racial identity and their racial socialization emphases was examined. Three components of racial identity were evaluated: (1) the importance of race to the self‐concept (centrality), (2) affective feelings toward group membership (private regard), and (3) perceptions of how group members are perceived by nonmembers (public regard). Latent class cluster analysis was used to identify racial identity profiles, or dominant combinations of racial centrality, private regard, and public regard among a sample of 208 female African American primary caregivers. Mean differences in the content of caregivers' socialization emphases by profile group were then assessed. Findings indicated that caregivers with different identity profiles emphasized different messages. These findings and their implications are discussed.     

An investigation of the effects of a parent delivered stimulus-stimulus pairing intervention on vocalizations of two children with Autism Spectrum Disorder

The Analysis of Verbal Behavior - Communication deficits in children with Autism Spectrum Disorder (ASD) can manifest in a myriad of lifelong social and educational challenges. Many children with...     

Human Resource Development in SMEs: A Systematic Review of the Literature

Human Resource Development (HRD) in small and medium‐sized enterprises (SMEs) is a significant area of scholarship. However, the cumulativeness of research on HRD in SMEs remains relatively low when compared to HRD generally. This paper reports a systematic literature review (SLR) to synthesise research in this area. A disciplined screening process resulted in a final sample of 117 papers published in 31 journals from 1995 to 2014. The synthesis of these empirical and theoretical studies revealed that: (a) the literature utilises a narrow range of theoretical and conceptual perspectives; (b) HRD is being investigated across a variety of SME contexts, themes and units of analysis; (c) researchers define HRD in multiple ways and use a diverse set of measures of HRD activity; (d) there is significant potential for future research across the SME and HRD disciplines, SME settings and beyond existing theoretical perspectives. We offer suggestions for further advancing the development of this area of research in terms of theory, content and methodology.     

单个分子光学检测仪器的搭建和检验

在Nikon TE300倒置显微镜的基础上 搭建并检验了两套单个分子检测系统 即远场共焦显微镜和远场宽场照明显微镜。实验证明,所搭建的仪器达到了单个分子检测的水平 为利用单个分子光学检测技术研究生命科学中的问题奠定了基础。     

Doing Things Differently: Can Water Supply,Sanitation, and Hygiene Services Support Peace‐ and State‐Building Processes?

Interventions across all sectors in fragile states are called to contribute to tackling conflict and fragility despite the lack of evidence on how/if this is possible. This article reviews the existing literature to identify five entry points through which water supply and sanitation service delivery might interact, both positively and negatively, with state‐building and/or peace‐building processes. Evidence for the relevance of these entry points was assessed in the Republic of South Sudan and the Democratic Republic of Congo. Our research suggests that the way in which water and sanitation services are delivered is more important than the delivery of these services per se. Moreover, we find that the effects are largely modest and likely to be localised, and that greater attention is still needed to avoid potential negative consequences.     

A statistical uncertainty principle for estimating the time of a discrete shift in the mean of a continuous time random process

The purpose of this article is to present a statistical uncertainty principle that can be used when localizing a single change in the mean of a band-limited stationary random process. The statistical model investigated is a continuous time process that experiences a shift in its mean. This continuous time process is presumed to be sampled using an ideal low-pass filter. The least squares estimate of the location of the change in mean is asymptotically Gaussian. The standard deviation of the least squares estimate of the location of the change-point provides a physical limit to the accuracy of the estimate of the time of the mean shift which cannot be bettered.