130 research outputs found

    Grammar’s best kept secrets: what every primary teacher should know

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    In this insightful and thought-provoking article, Dr Huw Bell and Dr Steph Ainsworth from Manchester Metropolitan University, examine ways in which teachers can start to make sense of the grammar they are required to teach

    Benefits of Alaska Native Corporations and the SBA 8(a) Program to Alaska Natives and Alaska

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    Senator Begich’s office asked ISER for assistance assembling information to document the social and economic status of Alaska Natives and the benefits of the 8(a) program. His purpose is to brief Missouri Senator McCaskill and her committee which is reviewing the status of ANC contracts awarded under SBA’s 8(a) program. This review was triggered by a 2006 GAO report recommending increased SBA oversight to 8(a) contracting activity. Highlights of the GAO report are provided in Tab A.1; a letter dated May 15, 2009, from Senators Begich and Murkowski to Sentaor McCaskill, outlining their concerns is provided in Tab A.2. As the Congressional Research Service report (Tab A.3) explains, the Small Business Administration’s 8(a) program targeting socially and economically disadvantaged individuals was operating under executive authority from about 1970, and under statutory authority starting in 1978. A series of amendments from 1986 to 1992 recognized Alaska Native Corporations (ANCs) as socially and economically disadvantaged for purposes of program eligibility, exempted them from limitations on the number of qualifying subsidiaries, from some restrictions on size and minimum time in business, and from the ceiling on amounts for sole-source contracts. Between 1988 and 2005, the number of 8(a) qualified ANC subsidiaries grew from one to 154 subsidiaries owned by 49 ANCs. The dollar amount of 8(a) contracts to ANCs grew from 265millioninFY2000to265 million in FY 2000 to 1.1 billion in 2004, approximately 80 percent of which was in sole-source contracts. (GAO Highlights, Tab A.1) The remainder of this briefing book is divided in three sections. Section 2 addresses changes in the social and economic status of Alaska Natives from 1970--the year before the enactment of the Alaska Native Claims Settlement Act and the subsequent creation of the ANCs--to the present. ISER’s report on the “Status of Alaska Natives 2004” (Tab B.1) finds that despite really significant improvements in social and economic conditions among Alaska Natives, they still lag well behind other Alaskans in employment, income, education, health status and living conditions. A collection of more recent analyses updates the social and economic indicators to 2008. There were many concurrent changes throughout this dynamic period of Alaska’s history and we cannot attribute all the improvements to the ANCs, though it is clear that they play an important catalyst role. In the final part of section 2 we attempt to provide some historical context for understanding the role ANCs have played in improving the well-being of Alaska Natives. Section C. documents the growth in ANCs and their contributions to Alaska Native employment, income, social and cultural programs and wellbeing, and their major contributions to the Alaska economy and society overall. Section D. Looks specifically at the 8(a) program. Although there are a handful of 8(a) firms with large federal contracts, the majority are small, village-based corporations engaged in enterprise development in very challenging conditions. A collection of six case studies illustrate the barriers to business development these small firms face and the critical leverage that 8(a) contracting offers them.Mark BegichIntroduction / Status of Alaska Natives 1970 to 2000 / Benefits from Alaska Native Corporations / Benefits from the 8(a) progra

    A Diabetic Adolescent Case Study: Use of a Website in Combination with an Exercise Program to Increase Physical Activity

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    International Journal of Exercise Science 5(3) : 296-300, 2012. The purpose of this study was to report on the efficacy of a web-based technology support to encourage physical activity in children. This program was designed to promote physical activity and proper nutrition in the diabetic adolescent with a weekly meeting that consisted of a 30-minute educational session followed by 60-minutes of exercise. A specifically designed website was used as a support to this weekly supervised exercise program. Outcomes assessment included body mass index (BMI), muscle strength (grip strength, back and leg strength), flexibility, exercise self-efficacy, and physical activity participation (pedometer, LEAP II Survey). Improvements occurred in steps walked per day and exercise self-efficacy indicating that a once a week formal exercise, when combined with a technology support, is useful in increasing physical activity behavior

    Electro-kinetic technology as a low-cost method for dewatering food by-product

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    Increasing volumes of food waste, intense environmental awareness, and stringent legislation have imposed increased demands upon conventional food waste management. Food byproducts that were once considered to be without value are now being utilized as reusable materials, fuels, and energy in order to reduce waste. One major barrier to the valorization of food by-products is their high moisture content. This has brought about the necessity of dewatering food waste for any potential re-use for certain disposal options. A laboratory system for experimentally characterizing electro-kinetic dewatering of food by-products was evaluated. The bench scale system, which is an augmented filter press, was used to investigate the dewatering at constant voltage. Five food by-products (brewer’s spent grain, cauliflower trimmings, mango peel, orange peel, and melon peel) were studied. The results indicated that electro-kinetic dewatering combined with mechanical dewatering can reduce the percentage of moisture from 78% to 71% for brewer’s spent grain, from 77% to 68% for orange peel, from 80% to 73% for mango peel, from 91% to 74% for melon peel, and from 92% to 80% for cauliflower trimmings. The total moisture reduction showed a correlation with electrical conductivity (R2¼0.89). The energy consumption of every sample was evaluated and was found to be up to 60 times more economical compared to thermal processing

    Global versus phonemic similarity : evidence in support of multi-level representation

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    There is long-standing debate about the extent to which children cognitively represent words in terms of global properties or phonological segments, yet few studies have investigated how children’s sensitivity to phonemic versus global similarity changes over time. The current study uses a mispronunciation-reconstruction task to measure both types of sensitivity within a cross-sectional (N=90, aged 3;2 to 5;7) and longitudinal sample (N=23, aged 3;2 to 5;1). The results show that children’s sensitivity to phonemes increases over the first two years of school but does not reach adult levels. The findings indicate that global similarity relations remain important throughout development and support the idea of multi-level representation

    Viral outbreak in corals associated with an in situ bleaching event: atypical herpes-like viruses and a new megavirus infecting Symbiodinium

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    Previous studies of coral viruses have employed either microscopy or metagenomics, but few have attempted to comprehensively link the presence of a virus-like particle (VLP) to a genomic sequence. We conducted transmission electron microscopy imaging and virome analysis in tandem to characterize the most conspicuous viral types found within the dominant Pacific reef-building coral genus Acropora. Collections for this study inadvertently captured what we interpret as a natural outbreak of viral infection driven by aerial exposure of the reef flat coincident with heavy rainfall and concomitant mass bleaching. All experimental corals in this study had high titers of viral particles. Three of the dominant VLPs identified were observed in all tissue layers and budding out from the epidermis, including viruses that were ∼70, ∼120, and ∼150 nm in diameter; these VLPs all contained electron dense cores. These morphological traits are reminiscent of retroviruses, herpesviruses, and nucleocytoplasmic large DNA viruses (NCLDVs), respectively. Some 300–500 nm megavirus-like VLPs also were observed within and associated with dinoflagellate algal endosymbiont (Symbiodinium) cells. Abundant sequence similarities to a gammaretrovirus, herpesviruses, and members of the NCLDVs, based on a virome generated from five Acropora aspera colonies, corroborated these morphology-based identifications. Additionally sequence similarities to two diagnostic genes, a MutS and (based on re-annotation of sequences from another study) a DNA polymerase B gene, most closely resembled Pyramimonas orientalis virus, demonstrating the association of a cosmopolitan megavirus with Symbiodinium. We also identified several other virus-like particles in host tissues, along with sequences phylogenetically similar to circoviruses, phages, and filamentous viruses. This study suggests that viral outbreaks may be a common but previously undocumented component of natural bleaching events, particularly following repeated episodes of multiple environmental stressors

    New perspectives on Middle Leadership in schools in England – persistent tensions and emerging possibilities

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    To afford school middle leaders meaningful opportunities to initiate change, we must provide them with the space and flexibility to engage with agentic and creative responses to policy and practice. Whilst we argue that the tensions identified in Bennett’s seminal reviews persist, there may, nonetheless, be opportunities for school middle leaders to creatively influence educational agendas. Through engaging in a critical interpretative synthesis of school middle leadership literature, we consider how the subjectivities of such leaders are discursively constructed. We argue that a culture of performativity has diminished opportunities for middle leaders in English schools to develop a strong sense of agency, educational ideology and authentic professional responsibility. However, a current governmental focus on subject knowledge may have opened spaces for a collegial agency, despite the prevailing neo-conservative policy discourse. We thus identify, the potential for movement beyond a discursive position to one where school middle leaders take greater responsibility for developing practice to align more closely with their educational values. Utilising a dialogic theoretical perspective we examine how middle leadership in English schools is currently practiced and mediated in relation to the changing political landscape, and suggest that seemingly contradictory positions provide a fruitful site for new research

    Mupirocin and chlorhexidine resistance in Staphylococcus aureus in patients with community-onset skin and soft tissue infections

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    Decolonization measures, including mupirocin and chlorhexidine, are often prescribed to prevent Staphylococcus aureus skin and soft tissue infections (SSTI). The objective of this study was to determine the prevalence of high-level mupirocin and chlorhexidine resistance in S. aureus strains recovered from patients with SSTI before and after mupirocin and chlorhexidine administration and to determine whether carriage of a mupirocin- or chlorhexidine-resistant strain at baseline precluded S. aureus eradication. We recruited 1,089 patients with community-onset SSTI with or without S. aureus colonization. In addition to routine care, 483 patients were enrolled in a decolonization trial: 408 received intranasal mupirocin (with or without antimicrobial baths), and 258 performed chlorhexidine body washes. Patients were followed for up to 12 months with repeat colonization cultures. All S. aureus isolates were tested for high-level mupirocin and chlorhexidine resistance. At baseline, 23/1,089 (2.1%) patients carried a mupirocin-resistant S. aureus strain and 10/1,089 (0.9%) patients carried chlorhexidine-resistant S. aureus. Of 4 patients prescribed mupirocin, who carried a mupirocin-resistant S. aureus strain at baseline, 100% remained colonized at 1 month compared to 44% of the 324 patients without mupirocin resistance at baseline (P = 0.041). Of 2 patients prescribed chlorhexidine, who carried a chlorhexidine-resistant S. aureus strain at baseline, 50% remained colonized at 1 month compared to 48% of the 209 patients without chlorhexidine resistance at baseline (P = 1.0). The overall prevalence of mupirocin and chlorhexidine resistance is low in S. aureus isolates recovered from outpatients, but eradication efforts were less successful in patients carrying a mupirocin-resistant S. aureus strain at baseline

    Lexical restructuring in preliterate children: Evidence from novel measures of phonological representation

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    There is substantial debate in the literature surrounding the development of children's phonological representations (PRs). Although infant studies have shown children's representations to contain fine phonetic detail, a consensus is yet to be reached about how and when phonemic categories emerge. This study used novel implicit PR measures with preschool children (n = 38, aged 3 years, 6 months to 4 years, 6 months) to test predictions made by these competing accounts of PR development. The measures were designed to probe PR segmentation at the phoneme (rather than the phone) level without requiring an explicit awareness of phonemes. The results provide evidence in support of vocabulary driven restructuring, with PR segmentation found to be related to vocabulary when controlling for age
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