296 research outputs found
Engaging People in Learning about Water Resources
Connections to K-12 educators and state education networks can provide vital links to the communities that our outreach, research and management strategies serve. Project WET (Water Education for Teachers) is an international program for public education related to water that can be used to engage adults and children in learning about their water resources. The program provides curricular resources, teaching aids and most importantly educator training in the science of water, the social aspects of water resources (historic through future), and the challenges we face as scientists and managers to maintain high quality and sustained utilization of this vital resource
Core Beliefs, Self-Perception, and Cognitive Organization in Depressed Adolescents
The relationships between cognitive products (e.g., self-perception) and cognitive structure (or organization) in clinically depressed adolescents and nonpsychiatric controls (average age = 14.68) were examined. Adolescents with major depressive disorder showed significantly higher scores than did controls on the Young Schema Questionnaire domains of Disconnection, Impaired Autonomy, and Impaired Limits. These individuals also demonstrated poorer self-concept than controls on scholastic abilities, social acceptance, athletic competence, physical appearance, job competence, behavioral conduct, and global self-worth, as well as perceptions of limited social networks. The organization of self-referent adjectives was more tightly interconnected for negative content and less interconnected for positive content in depressed adolescents than in nonpsychiatric controls. Specificity of cognitive organization to themes of interpersonal and achievement beliefs/self-perceptions was also found, particularly for positive content. Implications of the findings for the cognitive vulnerability model of depression and future directions are discussed
3,4-Methylenedioxymethamphetamine Activates Nuclear Factor- ÎșB, Increases Intracellular Calcium, and Modulates Gene Transcription in Rat Heart Cells
3,4-Methylenedioxymethamphetamine (MDMA) is an illicit psychoactive drug that has gained immense popularity among teenagers and young adults. The cardiovascular toxicological consequences of abusing this compound have not been fully characterized. The present study utilized a transient transfection/dual luciferase genetic reporter assay, fluorescence confocal microscopy, and gene expression macroarray technology to determine nuclear factor-ÎșB (NF-ÎșB) activity, intracellular calcium balance, mitochondrial depolarization, and gene transcription profiles, respectively, in cultured rat striated cardiac myocytes (H9c2) exposed to MDMA. At concentrations of 1Ă10â3 M and 1Ă10â2 M, MDMA significantly enhanced NF-ÎșB reporter activity compared with 0 M (medium only) control. This response was mitigated by cotransfection with IÎșB for 1Ă10â3 M but not 1Ă10â2 M MDMA. MDMA significantly increased intracellular calcium at concentrations of 1Ă10â3 M and 1Ă10â2 M and caused mitochondrial depolarization at 1Ă10â2 M. MDMA increased the transcription of genes that are considered to be biomarkers in cardiovascular disease and genes that respond to toxic indults. Selected gene activation was verified via temperature-gradient RT-PCR conducted with annealing temperatures ranging from 50°C to 65°C. Collectively, these results suggest that MDMA may be toxic to the heart through its ability to activate the myocardial NF-ÎșB response, disrupt cytosolic calcium and mitochondrial homeostasis, and alter gene transcription
A review of consumer awareness, understanding and use of food-based dietary guidelines
Copyright @ 2011 Cambridge University PressFood-based dietary guidelines (FBDG) have primarily been designed for the consumer to encourage healthy, habitual food choices, decrease chronic disease risk and improve public health. However, minimal research has been conducted to evaluate whether FBDG are utilised by the public. The present review used a framework of three concepts, awareness, understanding and use, to summarise consumer evidence related to national FBDG and food guides. Searches of nine electronic databases, reference lists and Internet grey literature elicited 939 articles. Predetermined exclusion criteria selected twenty-eight studies for review. These consisted of qualitative, quantitative and mixed study designs, non-clinical participants, related to official FBDG for the general public, and involved measures of consumer awareness, understanding or use of FBDG. The three concepts of awareness, understanding and use were often discussed interchangeably. Nevertheless, a greater amount of evidence for consumer awareness and understanding was reported than consumer use of FBDG. The twenty-eight studies varied in terms of aim, design and method. Study quality also varied with raw qualitative data, and quantitative method details were often omitted. Thus, the reliability and validity of these review findings may be limited. Further research is required to evaluate the efficacy of FBDG as a public health promotion tool. If the purpose of FBDG is to evoke consumer behaviour change, then the framework of consumer awareness, understanding and use of FBDG may be useful to categorise consumer behaviour studies and complement the dietary survey and health outcome data in the process of FBDG evaluation and revision.This study is funded by the European Commission Sixth Framework Programme (contract no. 036196)
Shedding light on humanitarian sanitation
Lighting should be provided for WASH facilities in Humanitarian contexts according to several standards. Evidence for this and the practical budget, operational and management responsibilities are less clear. A three-country research project looking at the impact of lighting on WASH use and Gender- Based Violence (GBV) required a multi-disciplinary approach, combining OXFAMâs practical implementing expertise with WEDCâs research-orientated approach. The research showed how much more is needed for safe sanitation than just building latrines. Lack of usage of latrines had implications for environmental health. A reason for not using latrines was due to fear of many things, including GBV. The location of the facility was a common concern, but simple lessons are not easy to distil as the context varies between settlements and changes rapidly overtime. The provision of lighting was welcomed by a wide range of stakeholders, but other factors still affect both GBV and WASH outcomes
Changing micronutrient intake through (voluntary) behaviour change. The case of folate.
The objective of this study was to relate behaviour change mechanisms to nutritionally relevant behaviour and demonstrate how the different mechanisms can affect attempts to change these behaviours. Folate was used as an example to illuminate the possibilities and challenges in inducing behaviour change. The behaviours affecting folate intake were recognised and categorised. Behaviour change mechanisms from "rational model of man", behavioural economics, health psychology and social psychology were identified and aligned against folate-related behaviours. The folate example demonstrated the complexity of mechanisms influencing possible behavioural changes, even though this only targets the intake of a single micronutrient. When considering possible options to promote folate intake, the feasibility of producing the desired outcome should be related to the mechanisms of required changes in behaviour and the possible alternatives that require no or only minor changes in behaviour. Dissecting the theories provides new approaches to food-related behaviour that will aid the development of batteries of policy options when targeting nutritional problems
Prevention of immunodeficiency virus induced CD4+ T-cell depletion by prior infection with a non-pathogenic virus
AbstractImmune dysregulation initiated by a profound loss of CD4+ T-cells is fundamental to HIV-induced pathogenesis. Infection of domestic cats with a non-pathogenic lentivirus prevalent in the puma (puma lentivirus, PLV or FIVpco) prevented peripheral blood CD4+ T-cell depletion caused by subsequent virulent FIV infection. Maintenance of this critical population was not associated with a significant decrease in FIV viremia, lending support to the hypothesis that direct viral cytopathic effect is not the primary cause of immunodeficiency. Although this approach was analogous to immunization with a modified live vaccine, correlates of immunity such as a serum-neutralizing antibody or virus-specific T-cell proliferative response were not found in protected animals. Differences in cytokine transcription profile, most notably in interferon gamma, were observed between the protected and unprotected groups. These data provide support for the importance of non-adaptive enhancement of the immune response in the prevention of CD4+ T-cell loss
A Behavior Genetic Study of the Connection Between Social Values and Personality
The present research examined the extent to which relations between social values and personality are due to shared genetic or environmental factors. Using the Rokeach (1973) Value Survey and a scoring key from Schwartz and Bilsky (1990), seven value scores (enjoyment, achievement, self-direction, maturity, prosocial, security, and restrictive conformity) were derived in a sample of twins. As expected, all of the value scales were found to have a significant genetic component, with values ranging from 36% for enjoyment to 63% for prosocial, and there were numerous significant phenotypic correlations found between the value scales and personality scores. Most important, bivariate genetic analyses revealed that some of these phenotypic correlations could be attributed to common genetic or environmental factors
MammoSapiens: eResearch of the lactation program.
Delivering bioinformatics power to life science researchers inevitably runs into problems of limited computing resources in the context of exponentially increasing data sources, access time, costs, lack of skills and, rapidly evolving technology and software tools with poorly defined standards. In this context the development of e-facilities to best enable collaborative research often needs to be customized to specific project applications in close cooperation with the experimentalist users and, to be concerned with the storage and management of results to allow more consistency and traceability of e-results on a broad access data mining platform. Here we showcase an internet based eResearch platform using the PHP/MySQL paradigm for the collaborative, integrative and comparative analysis of lactation related gene sequences and gene expression experiments to support lactation research. We also illustrate how these resources are used, how they enable research by allowing meta-analysis of data and results and, how the bottom-up development of customized eResearch components can lead to the production of more generic functional software tools and eResearch environments for deployment to a larger number of biological research users working on other bio-systems.<br /
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