Absorptive capacity in child welfare: measurement challenges and item development

Promoting successful implementation of evidence-based practices within child welfare agencies necessitates accurately measuring absorptive capacity (i.e., the ability to acquire, assimilate, transform, and exploit knowledge) through valid and reliable assessment. However, a measurement tool does not exist for child welfare agencies. As such, this exploratory study identified existing measures and items relevant to absorptive capacity in child welfare. The study resulted in 12 identified measures, comprising 98 applicable items. This research is a first step toward creating a measure for use in child welfare settings that will guide practice and administration decisions through valid measurement.     

Putting violent armed conflict in the center of the Salween hydropower debates

Regional economic integration has become the dominant development pathway promoted, endorsed, and followed by many developing country governments in South East Asia and globally. Focusing on hydropower development, this article shows how forces of globalization manifested in the Myanmar government’s strategies to promote economic growth are shaping the Salween River basin’s development trajectory. Contesting the general belief that economic development would help the country’s transition to full democracy and achieve peace, it illustrates how hydropower development plans in the basin are closely interlinked with human rights issues. Well known for its long histories of violent conflict involving the Myanmar military and ethnic armed groups in various states, hydropower development in the Salween River is not only linked to the ongoing peace process in Myanmar but could also have direct implications on the actual significance of the process. Despite the signing of nationwide ceasefire agreements in 2012, hydropower dam projects could contribute to and trigger reoccurrences of violent armed conflict. Recognizing this conflict-prone and politically fragile condition as the main characteristics of Salween water governance is essential if we are to strive for sustainable and just development.     

Application of Random Match Probability Calculations to Mixed STR Profiles

Mixed DNA profiles are being encountered more frequently as laboratories analyze increasing amounts of touch evidence. If it is determined that an individual could be a possible contributor to the mixture, it is necessary to perform a statistical analysis to allow an assignment of weight to the evidence. Currently, the combined probability of inclusion (CPI) and the likelihood ratio (LR) are the most commonly used methods to perform the statistical analysis. A third method, random match probability (RMP), is available. This article compares the advantages and disadvantages of the CPI and LR methods to the RMP method. We demonstrate that although the LR method is still considered the most powerful of the binary methods, the RMP and LR methods make similar use of the observed data such as peak height, assumed number of contributors, and known contributors where the CPI calculation tends to waste information and be less informative.     

Government and education news

Abstract

FOR EIGHT years Cornell's Legal Information Institute has offered online law courses to students at other US law schools. Using a paced asynchronous approach, with streaming audio linked to referenced Web materials, interactive problems, online discussion/ and a series of written exercises, the courses offer a successful model of how law schools can pool teaching resources and students to enrich curricula. This article reports on and explains the choices, challenges, student response, and educational outcomes of this ongoing experiment, organised around ten frequently asked questions. It also ventures some cautious conclusions about the near‐term prospects for distance learning in US legal education, noting both inhibiting forces, including importantly constraints imposed by accreditation rules, and recent grounds for optimism.     

Characterising stutter in forensic STR multiplexes

Stutter is an artefact seen when amplifying short tandem repeats and typically occurs at one repeat unit shorter in length than the parent allele. In forensic analysis, stutter complicates the analysis of DNA profiles from multiple contributors, known as mixed profiles, a common profile type. Consequently it is important to both understand and predict stutter behaviour in order to improve our understanding of the resolution and interpretation of these profiles. Whilst stutter is well recognised and documented, little information is available that identifies and quantifies what influences the formation of stutter. In this work we use a novel approach to examine this. We have used synthetic oligonucleotides comprising multiple repeat units to test; the influence of repeat number, the influence of repeat sequence and the impact of interruptions to the repeat sequence length. Using multiple replicates allows detailed statistical analysis. We have confirmed a linear relationship between stutter ratio and repeat number. We have shown that increased A-T content increases stutter ratio and that interruptions in repeating sequences decreased stutter ratios to levels similar to the longest uninterrupted repeat stretch. We also found that there was no relationship between stutter ratio and repeat number for a repeat unit with an A-T content of 1/4 and that half of the interrupted repeat sequences stuttered significantly less than their longest uninterrupted repeat stretches. We have applied the knowledge gained to examine specific features of the loci present in the AmpFlSTR^® SGM Plus^® multiplex kit used in our laboratory.     

Parkland acquisition and urbanization: Implications for managers

This paper reports the results of original research into the problem of acquiring parkland in an era of severe budgetary constraints on local government. Data on a variety of acquisition methods was collected and analyzed, and recommendations were developed to improve the efficiency of local parks planning. While these methods have previously been discussed separately in the literature, comparative studies have been the exception rather than the rule. The paper identifies a wide array of methods for acquiring parkland, formulates research questions based on a review of the literature, investigates them using a nationwide survey, and draws conclusions regarding practical implications for public administrators to use. Suggestions for further research are also made.     

The effect of cleaning agents on the ability to obtain DNA profiles using the Identifiler™ and PowerPlex® Y multiplex kits

Abstract: A year after the introduction of Identifiler? into the forensic DNA laboratories of the Institute of Environmental Science and Research Limited (ESR), increasing occurrences of dropout of the three loci, D7S820, D18S51, and FGA, were observed in samples where the DNA was not degraded and sufficient DNA was present that full DNA profiles were to be expected. The dropout was either partial or complete at these loci. Full profiles could sometimes be obtained by reamplification of samples using the same input amount of DNA. After a thorough investigation of the methods and procedures used in the laboratory, the cause of this inhibition was identified as the cleaning agent TriGene? ADVANCE. This was determined after the deliberate addition of varying amounts of different cleaning reagents into the DNA amplification reactions. At concentrations of 0.004% TriGene? ADVANCE caused inhibition resulting in tri‐loci dropout. At concentrations of 0.04% and higher, complete inhibition was observed. An effect was also seen on the amplification of samples using the Y STR profiling system PowerPlex^®Y. This work highlights the importance of checking all reagents and chemicals prior to use, even those with no apparent direct influence on the DNA profiling process.