2,321 research outputs found
Parental perspectives of students' strengths in transition planning
The most recent revision of the Individuals with Disabilities in Education Act (IDEA) mandates that students’ strengths be considered in the transition planning process for students with disabilities; however, there is evidence that individuals’ strengths are not being utilized to support their transition to adulthood (Shogren & Plotner, 2012; Landmark & Zhang, 2012). Strengths refer to all of an individual’s assets, both personal and contextual, that improve that individual’s ability to function (Davis et al., 2007; McCammon, 2012). Parents have unique perspectives of their sons’ and daughters’ strengths (Carter, Brock, & Trainor, 2014) and have the potential to influence the transition planning process in a positive way. This study used qualitative methods to understand how parents describe their son or daughter’s strengths, both personal and contextual, in relation to transition planning. Findings indicated that parents identify equal amounts of personal and contextual strengths for their children. However, strengths were described as being context dependent; the trait or resource described as an asset in one aspect of transitioning to adult life was also described as a barrier to another aspect. These findings highlighted the value of including parents in the transition planning process and that students have many strengths available for consideration as they enter adult life
Follow-Up, A Key Component of Successful Professional Development
Inexperienced teachers\u27 perceived classroom effectiveness of their planning and preparation, classroom environment, instruction, and professional responsibilities domains were analyzed to determine the effects of active follow-up compared to information-based follow-up of classroom management training (N = 50). Inexperienced teachers enrolled in I Can Do It Classroom Management Training were randomly assigned to active follow-up to the training (n = 24) or information-based follow-up to the training (n = 26). As reflected by the pretest and posttest evaluation form measuring their perceived effectiveness in the domains of planning and preparation, classroom environment, instruction, and professional responsibilities, teachers participating in active follow-up of the training demonstrated statistically significant growth in each of the domains. Teachers participating in the information-based follow-up demonstrated little or no growth in each of the domains. Pretest-posttest and posttest-posttest analysis of perceptions of teachers engaged in active follow-up demonstrated significant growth in three of the domains identified in the professional development model and significantly higher classroom effectiveness scores than teachers engaged in information-based follow-up. The study\u27s results should encourage district officials to look at professional development and the type of follow-up included in staff development initiatives
Noninfectious retrovirus particles drive the APOBEC3/Rfv3 dependent neutralizing antibody response.
Members of the APOBEC3 family of deoxycytidine deaminases counteract a broad range of retroviruses in vitro through an indirect mechanism that requires virion incorporation and inhibition of reverse transcription and/or hypermutation of minus strand transcripts in the next target cell. The selective advantage to the host of this indirect restriction mechanism remains unclear, but valuable insights may be gained by studying APOBEC3 function in vivo. Apobec3 was previously shown to encode Rfv3, a classical resistance gene that controls the recovery of mice from pathogenic Friend retrovirus (FV) infection by promoting a more potent neutralizing antibody (NAb) response. The underlying mechanism does not involve a direct effect of Apobec3 on B cell function. Here we show that while Apobec3 decreased titers of infectious virus during acute FV infection, plasma viral RNA loads were maintained, indicating substantial release of noninfectious particles in vivo. The lack of plasma virion infectivity was associated with a significant post-entry block during early reverse transcription rather than G-to-A hypermutation. The Apobec3-dependent NAb response correlated with IgG binding titers against native, but not detergent-lysed virions. These findings indicate that innate Apobec3 restriction promotes NAb responses by maintaining high concentrations of virions with native B cell epitopes, but in the context of low virion infectivity. Finally, Apobec3 restriction was found to be saturable in vivo, since increasing FV inoculum doses resulted in decreased Apobec3 inhibition. By analogy, maximizing the release of noninfectious particles by modulating APOBEC3 expression may improve humoral immunity against pathogenic human retroviral infections
Kaposi's Sarcoma in Uganda: Geographic and Ethnic Distribution
Over the quinquennium 1964-68 the crude annual incidence of Kaposi's sarcoma in Uganda per million of the population was 7·9 overall, 14·6 for males and 1·1 for females. Statistical analysis indicates that the disease is most prevalent in highland areas to the west and among the indigenous Bantu tribes. There was no correlation with the distribution of squamous cell carcinoma of the lower leg, and Kaposi's sarcoma was not seen in an Indian or European during the period under review
Total wrist arthrodesis with and without arthrodesis of the carpoMetacarpal joint (WAWWAM):study protocol
Abstract Background It is controversial whether or not the carpometacarpal joint (CMCJ) should be included in total wrist arthrodesis (TWA). Complications commonly occur at this site and studies examining its inclusion and exclusion are conflicting. A randomised clinical trial comparing wrist arthrodesis with CMCJ arthrodesis and spanning plate to wrist arthrodesis with CMCJ preservation and non-CMCJ spanning plate has not been performed. Method A single centre randomised clinical trial including 120 adults with end-stage isolated wrist arthritis will be performed to compare TWA with and without the CMCJ included in the arthrodesis. The primary outcome is complications in the first post-operative year. Secondary outcomes are Disabilities of the Arm, Shoulder and Hand (DASH) score, Patient Rated Wrist Evaluation (PRWE) and grip strength measured at 1, 2 and 5 years. Late complications, return to work and satisfaction will also be recorded. Discussion It is unknown whether the CMCJ should be included in TWA. This trial will contribute to an improved understanding of optimal management of the CMCJ in total wrist arthrodesis. Trial registration This trial was prospectively registered with the Australia New Zealand Clinical Trials Registry with identifying number ACTRN12621000169842 on the 16th February 2021. WHO: U1111–12626523. ANZCTR: ACTRN1262100016984
A Single Nucleotide Polymorphism in Tetherin Promotes Retrovirus Restriction In Vivo
Tetherin is a membrane protein of unusual topology expressed from rodents to humans that accumulates enveloped virus particles on the surface of infected cells. However, whether this ‘tethering’ activity promotes or restricts retroviral spread during acute retrovirus infection in vivo is controversial. We report here the identification of a single nucleotide polymorphism in the Tetherin gene of NZW/LacJ (NZW) mice that mutated the canonical ATG start site to GTG. Translation of NZW Tetherin from downstream ATGs deleted a conserved dual-tyrosine endosomal sorting motif, resulting in higher cell surface expression and more potent inhibition of Friend retrovirus release compared to C57BL/6 (B6) Tetherin in vitro. Analysis of (B6×NZW)F1 hybrid mice revealed that increased Tetherin cell surface expression in NZW mice is a recessive trait in vivo. Using a classical genetic backcrossing approach, NZW Tetherin expression strongly correlated with decreased Friend retrovirus replication and pathogenesis. However, the protective effect of NZW Tetherin was not observed in the context of B6 Apobec3/Rfv3 resistance. These findings identify the first functional Tetherin polymorphism within a mammalian host, demonstrate that Tetherin cell surface expression is a key parameter for retroviral restriction, and suggest the existence of a restriction factor hierarchy to counteract pathogenic retrovirus infections in vivo
“Catch 22”: biosecurity awareness, interpretation and practice amongst poultry catchers
Campylobacter contamination of chicken on sale in the UK remains at high levels and has a substantial public health impact. This has prompted the application of many interventions in the supply chain, including enhanced biosecurity measures on-farm. Catching and thinning are acknowledged as threats to the maintenance of good biosecurity, yet the people employed to undertake this critical work (i.e. ‘catchers’) are a rarely studied group. This study uses a mixed methods approach to investigate catchers’ (n = 53) understanding of the biosecurity threats posed by the catching and thinning, and the barriers to good biosecurity practice. It interrogated the role of training in both the awareness and practice of good biosecurity. Awareness of lapses in biosecurity was assessed using a Watch-&-Click hazard awareness survey (n = 53). Qualitative interviews (n = 49 catchers, 5 farm managers) explored the understanding, experience and practice of catching and biosecurity. All of the catchers who took part in the Watch-&-Click study identified at least one of the biosecurity threats with 40% detecting all of the hazards. Those who had undergone training were significantly more likely to identify specific biosecurity threats and have a higher awareness score overall (48% compared to 9%, p = 0.03). Crucially, the individual and group interviews revealed the tensions between the high levels of biosecurity awareness evident from the survey and the reality of the routine practice of catching and thinning. Time pressures and a lack of equipment rather than a lack of knowledge appear a more fundamental cause of catcher-related biosecurity lapses. Our results reveal that catchers find themselves in a ‘catch-22′ situation in which mutually conflicting circumstances prevent simultaneous completion of their job and compliance with biosecurity standards
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