Service Learning Without Borders – Turning Peanut Shells to Fuel Briquettes in the Gambia

The need of firewood in the Gambia is leading to rapid deforestation. An engineering student team in our program was funded to convert peanut shells, an abundant agricultural waste from the country, into fuel briquette. By consulting the local contacts, the students developed a series of pressing devices and processes for the purpose. Then they compared the strength, burning rate and duration of burning of the briquettes, as well the difficulties to obtain binder and process the material. They finally settled to an easy to follow recipe and a very simple device to press the loose shells to briquettes. In the January of 2012, a student team went to 8 remote villages in rural Gambia. They demonstrated the briquetting process to the local people. The team was warmly received and all villages agreed to try out the method so they could preserve the dwindling forest while supporting the growing community

Immigrant Adult Education: A Literature Review

This literature review explains and discusses challenges immigrants face when continuing their education in a foreign country

Developing the implicit association test to uncover hidden preferences for sustainable drainage systems

Understanding public perceptions of Sustainable Drainage Systems (SuDS) is critical for addressing barriers to their implementation. Perceptions are typically evaluated using explicit measures (e.g. questionnaires) that are subject to biases and may not fully capture attitudes towards SuDS. A novel image-based application of the Implicit Association Test (IAT) is developed to investigate unconscious perceptions of SuDS in public greenspace, and combined with explicit tests to evaluate perceptions of greenspace with and without SuDS, focussing on a sample population in Newcastle-upon-Tyne. Greenspace with or without SuDS is perceived positively by the sample population. Overall, respondents implicitly and explicitly prefer greenspace without SuDS, and perceive greenspace without SuDS as more attractive, tidier and safer. The wide distribution of scores for SuDS, nonetheless, suggests a range of opinions and illustrates the complex nature of preferences for the use of greenspace. That the strongly negative explicit scores were not reflected in the implicit tests may suggest that explicit attitudes towards tidiness and safety may not be deep-rooted and are subject to social bias. Combined explicit and implicit tests may help us to understand any disconnect between expressed positive attitudes to natural spaces and behaviours around them, and inform SuDS design to increase public acceptance

Willing to have, willing to help, or ready to own—Determinants of variants of stewardship social practices around Blue-Green Infrastructure in dense urban communities

IntroductionThere is increasing acceptance of the desirability of involving communities in stewardship activities around urban blue-green infrastructure (BGI) to generate acceptance, reduce vandalism and decrease the maintenance burden on authorities. However, little is yet known about the willingness of communities to engage in such stewardship, or the drivers to participate in activities.MethodsThis research adopted a practice lens and firstly defined three variants of BGI stewardship associated with passive acceptance, active care for and ownership of BGI. Secondly, the research conceptualized these practices within a complex of pro-environmental practices communities could perform. Through a face-to-face household survey in a dense UK urban area, the research sought to identify the prevalence of these variants of practice, their associations with other pro-environmental practices and the meanings, resources and competencies that drive a household's willingness to engage.ResultsThe research found different willingness for the three variants with passive most popular and ownership least. Meanings associated with BGI stewardship practice appeared to differ in crucial respects from other pro-environmental practices and were most associated with water-management rather than climate concern, however some place-based motivations were also involved. Practical resource and competency considerations also affected willingness to perform active stewardship and ownership variants.DiscussionThe research concluded that promoting the water-management aspects of BGI for all variants, along with facilitation of engagement with more active variants, could increase interest in BGI stewardship participation

Assessing the Effectiveness of a Bedtime Behavioral Intervention for Military Children with a Deployed Parent

While there are advantages and disadvantages to the lifestyle of a military family, challenges often include frequent moves, stressful military work environments, and deployments of the active duty member to dangerous war zones. Military children often display an array of internalizing and externalizing problems, with one common problem being disrupted sleep. The purpose of the current study was to evaluate the use of current technology to minimize problematic sleep behaviors affecting young children with a recently deployed parent. The intervention required parents to show their child a previously recorded DVD of the deployed parent reading a children’s book prior to the child’s bedtime. Sleep diary data were collected for two children who had been previously identified as having significant bedtime resistant behavior. A nonconcurrent, multiple-baselines across participants research design was used to evaluate data with two data collection phases for both participants. Analyses revealed considerable reductions in the number of bedtime resistant behaviors post-intervention and large effect sizes were yielded for the intervention phases for both participants. Implications for clinical practice are discussed

Estimating probability of germline mismatch repair mutations in colorectal cancer patients with microsatellite stable tumors

http://deepblue.lib.umich.edu/bitstream/2027.42/112938/1/13053_2011_Article_206.pd

An oncocytic adrenal tumour in a patient with Birt‐Hogg‐Dubé syndrome

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/106917/1/cen12292.pd

Executive Processes Underpin the Bilingual Advantage on Phonemic Fluency: Evidence from Analyses of Switching and Clustering

Bilinguals often show a disadvantage in lexical access on verbal fluency tasks wherein the criteria require the production of words from semantic categories. However, the pattern is more heterogeneous for letter (phonemic) fluency wherein the task is to produce words beginning with a given letter. Here, bilinguals often outperform monolinguals. One explanation for this is that phonemic fluency, as compared with semantic fluency, is more greatly underpinned by executive processes and that bilinguals exhibit better performance on phonemic fluency due to better executive functions. In this study, we re-analyzed phonemic fluency data from the Betula study, scoring outputs according to two measures that purportedly reflect executive processes: clustering and switching. Consistent with the notion that bilinguals have superior executive processes and that these can be used to offset a bilingual disadvantage in verbal fluency, bilinguals (35-65 years at baseline) demonstrated greater switching and clustering throughout the 15-year study period

Oxygen limitation modulates pH regulation of catabolism and hydrogenases, multidrug transporters, and envelope composition in Escherichia coli K-12

BACKGROUND: In Escherichia coli, pH regulates genes for amino-acid and sugar catabolism, electron transport, oxidative stress, periplasmic and envelope proteins. Many pH-dependent genes are co-regulated by anaerobiosis, but the overall intersection of pH stress and oxygen limitation has not been investigated. RESULTS: The pH dependence of gene expression was analyzed in oxygen-limited cultures of E. coli K-12 strain W3110. E. coli K-12 strain W3110 was cultured in closed tubes containing LBK broth buffered at pH 5.7, pH 7.0, and pH 8.5. Affymetrix array hybridization revealed pH-dependent expression of 1,384 genes and 610 intergenic regions. A core group of 251 genes showed pH responses similar to those in a previous study of cultures grown with aeration. The highly acid-induced gene yagU was shown to be required for extreme-acid resistance (survival at pH 2). Acid also up-regulated fimbriae (fimAC), periplasmic chaperones (hdeAB), cyclopropane fatty acid synthase (cfa), and the "constitutive" Na+/H+ antiporter (nhaB). Base up-regulated core genes for maltodextrin transport (lamB, mal), ATP synthase (atp), and DNA repair (recA, mutL). Other genes showed opposite pH responses with or without aeration, for example ETS components (cyo,nuo, sdh) and hydrogenases (hya, hyb, hyc, hyf, hyp). A hypF strain lacking all hydrogenase activity showed loss of extreme-acid resistance. Under oxygen limitation only, acid down-regulated ribosome synthesis (rpl,rpm, rps). Acid up-regulated the catabolism of sugar derivatives whose fermentation minimized acid production (gnd, gnt, srl), and also a cluster of 13 genes in the gadA region. Acid up-regulated drug transporters (mdtEF, mdtL), but down-regulated penicillin-binding proteins (dacACD, mreBC). Intergenic regions containing regulatory sRNAs were up-regulated by acid (ryeA, csrB, gadY, rybC). CONCLUSION: pH regulates a core set of genes independently of oxygen, including yagU, fimbriae, periplasmic chaperones, and nhaB. Under oxygen limitation, however, pH regulation is reversed for genes encoding electron transport components and hydrogenases. Extreme-acid resistance requires yagU and hydrogenase production. Ribosome synthesis is down-regulated at low pH under oxygen limitation, possibly due to the restricted energy yield of catabolism. Under oxygen limitation, pH regulates metabolism and transport so as to maximize alternative catabolic options while minimizing acidification or alkalinization of the cytoplasm