The development of small-scale irrigation in sub-Saharan Africa

The performance of irrigation schemes in sub-Saharan Africa has generally been discouraging. This has been particularly true of large-scale formal smallholder developments. Recently attention has been turning increasingly to small-scale farmer-managed irrigation, generally utilizing simple, low-cost methods of water control. While not yet very prominent in Government planning and policy statements, small-scale irrigation has been espoused enthusiastically by farmers, non-governmental organizations and some international agencies. In this approach to rural development external agencies act as catalysts of change, technical advisors, channels for capital funding and intermediaries between farmer groups and other organizations. Although generally limited in physical size and sophistication of technology, small-scale irrigation nevertheless experiences the complexities inherent in the management of land and water, and of social, political and economic change. Research and development needs are wide-ranging, and attention to them is likely to be fruitful in terms of increasingly effective rural development strategies.     

Development of a Quality Assurance and Continuous Quality Improvement (CQI) Model in Public Child Welfare Systems

The purpose of this article is to review the development and implementation of a revised quality assurance and continuous quality improvement (CQI) model for the child welfare system in one Mid-Atlantic state, and the contribution of this new process to measuring the quality of child welfare practices. This revised CQI model in the state includes a broader scope of assessing practice and outcomes, as well as compliance, and engages internal and external partners in the process. This study is the first to describe the state’s revised CQI implementation process and examine preliminary outcomes in a statewide child welfare system. Findings indicate that the revised model was able to identify the factors that contributed to improving outcomes for children and families and to develop a greater understanding of the aggregate data across the state. This study will contribute to the comprehensive understanding of the model and provide implications for future quality assurance practices.     

Effects of Cyanoacrylate Fuming,Time After Recovery,and Location of Biological Material on the Recovery and Analysis of DNA from Post‐Blast Pipe Bomb Fragments*

Abstract: This study investigated the effects of time, cyanoacrylate fuming, and location of the biological material on DNA analysis of post‐blast pipe bomb fragments. Multiple aliquots of a cell suspension (prepared by soaking buccal swabs in water) were deposited on components of the devices prior to assembly. The pipe bombs were then deflagrated and the fragments recovered. Fragments from half of the devices were cyanoacrylate fumed. The cell spots on the fragments were swabbed and polymerase chain reaction/short tandem repeat analysis was performed 1 week and 3 months after deflagration. A significant decrease in the amount of DNA recovered was observed between samples collected and analyzed within 1 week compared with the samples collected and analyzed 3 months after deflagration. Cyanoacrylate fuming did not have a measurable effect on the success of the DNA analysis at either time point. Greater quantities of DNA were recovered from the pipe nipples than the end caps. Undeflagrated controls showed that the majority (>95%) of the DNA deposited on the devices was not recovered at a week or 3 months.     

The role of the new "date rape drugs" in attributions about date rape

This study investigates the effect of voluntary and involuntary drug use on attributions about sexual assault. The sample was composed of 280 randomly selected male and female undergraduate students. The type of drug used (GHB, alcohol, or none) and the voluntariness of the administration were varied in an unambiguous date rape scenario. Participants viewed sexual assault facilitated by alcohol or drugs similarly to sexual assault without drug or alcohol involvement, assigning the highest levels of responsibility and blame to the perpetrator and the lowest levels of both to the victim in these situations. In contrast, women's voluntary consumption of drugs prior to a sexual assault reduced perpetrator responsibility and blame and increased blame to the victim compared to other situations (except in some cases, voluntary drunkenness). These findings extend the limited research on date rape drugs and previous work on the influence of alcohol on date rape attributions.     

Fourier transform infrared reflectance spectra of latent fingerprints: a biometric gauge for the age of an individual

To determine if changes in fingerprint infrared spectra linear with age can be found, partial least squares (PLS1) regression of 155 fingerprint infrared spectra against the person's age was constructed. The regression produced a linear model of age as a function of spectrum with a root mean square error of calibration of less than 4 years, showing an inflection at about 25 years of age. The spectral ranges emphasized by the regression do not correspond to the highest concentration constituents of the fingerprints. Separate linear regression models for old and young people can be constructed with even more statistical rigor. The success of the regression demonstrates that a combination of constituents can be found that changes linearly with age, with a significant shift around puberty.     

The Utility of Expanded Conclusion Scales During Latent Print Examinations

During fingerprint comparisons, a latent print examiner visually compares two impressions to determine whether or not they originated from the same source. They consider the amount of perceived detail in agreement or disagreement and accumulate evidence toward same source and different sources propositions. This evidence is then mapped to one of three conclusions: Identification, Inconclusive, or Exclusion. A limitation of this 3-conclusion scale is it can lose information when translating the conclusion from the internal strength-of-evidence value to one of only three possible conclusions. An alternative scale with two additional values, support for different sources and support for common sources, has been proposed by the Friction Ridge Subcommittee of OSAC. The expanded scale could lead to more investigative leads but could produce complex trade-offs in both correct and erroneous identifications. The aim of the present study was to determine the consequences of a shift to expanded conclusion scales in latent print comparisons. Latent print examiners each completed 60 comparisons using one of the two scales, and the resulting data were modeled using signal detection theory to measure whether the expanded scale changed the threshold for an “Identification” conclusion. When using the expanded scale, examiners became more risk-averse when making “Identification” decisions and tended to transition both the weaker Identification and stronger Inconclusive responses to the “Support for Common Source” statement. The results demonstrate the utility of an expanded conclusion scale and also provide guidance for the adoption of these or similar scales.     

Social Media Social Comparison of Ability (but not Opinion) Predicts Lower Identity Clarity: Identity Processing Style as a Mediator

Social comparison on social media has received increasing attention, but most research has focused on one type of social comparison and its psycho-emotional implications. Little is known about how different types of social comparison influence youth’s identity development. Drawing on the theories of identity processing styles and social comparison, we examined how two different forms of social comparison on social media related to three identity processing styles, which in turn predicted youth’s global self-esteem and identity clarity. We surveyed 219 college freshmen (M_age?=?18.29; 74% female) once in the Fall and once in the Spring. Social comparison of ability on social media was related to concurrent diffuse-avoidant identity processing style, which predicted lower identity clarity months later. In contrast, social comparison of opinion on social media did not influence college freshmen’s global self-esteem and identity clarity through identity processing styles. The findings clarified the implications of online social comparison for youth’s identity development.     

South Africa's governance challenges: assessing the South Africa–China mineral case

The past 50 years of Africa's history have been blighted by a lack of good governance, which has hindered economic growth and political stability. The continent continues to maintain weak states which are clearly evident in the persistent corruption, unconstitutional behaviour, inefficiency, waste and unnecessary bureaucracy that remain widely practised. However, owing to emerging markets such as China and India that have promoted foreign direct investment in developing countries, a lot of speculation has arisen regarding the impact of the Forum for Cooperation between Africa and China on continental governance. The speculation tends to focus on whether the multilateral trade agreement between Africa and China will be mutually beneficial, or promote bad governance practices such as corruption. This paper argues that in order for any multilateral agreement to become economically beneficial in Africa, the continental elites must first implement good governance best practices. Furthermore, the onus is on the African states, not their regional or trading partners, to implement economic institutional change.     

Identifying Barriers to Permanency: The Recruitment,Selection, and Training of Resource Parents

Staff and resource parents in the public child welfare agency and private child care facilities were invited to participate in research in one state to examine the barriers surrounding resource parent recruitment, training and selection, and strategies for achieving more timely permanency. Issues identified included the need for a shared vision among all stakeholders and the need to focus more on developing public and private agency partnerships. Data-driven strategies were then designed to address identified barriers. This process can serve as an example of how systems may use solicited input from the field to develop interventions or modify casework practice in an attempt to improve child and family outcomes as needed.