1,345 research outputs found
Mentor Principalsâ Perceptions About a Mentoring Program for Aspiring Principals
The purpose of this study was to assess the perceptions of principals who serve as mentors for an internship program for aspiring principals at East Tennessee State University. Each mentor was interviewed to gather information about the internship program, the benefits of mentoring in the program, and what the mentors may have learned about their tacit knowledge as a result of the experience. Mentors and the professors in the Educational Leadership Policy Analysis department at ETSU may benefit from the findings as the design of the school leadership program continues to advance.
Mentoring is an important component of training for aspiring and beginning principals because interns learn on the job in a supportive environment where they can take chances. Mentors also learn from the experience of being a mentor. The literature reviewed for this case study supported the need for standard-based mentoring programs. The ISLLC standards are an excellent example of standards that are used to provide structure and coherence for mentoring programs.
Positive and negative outcomes for the mentor were reviewed to support the research. Leadership and the change process were also reviewed to support the importance of the mentor\u27s role in the process we call mentoring. Several themes emerged from the analysis of data provided by mentor principals about mentoring aspiring principals. Mentoring resulted in reflection about the decisions the mentor makes during the day while explaining procedures to the intern. It was also found to be an experience that works best when a positive relationship is developed between the mentor and the intern; often leading to a relationship that lasts long after the internship is over. Principals examined their understanding of tacit knowledge and the possible ways tacit knowledge could be taught to their intern
Anticoagulant Rodenticide Toxicity to Non-target Wildlife Under Controlled Exposure Conditions
Our knowledge of the toxicity of anticoagulant rodenticides (ARs) can be traced to investigations of Karl Paul Link and colleagues on âbleeding diseaseâ in cattle, the eventual isolation of dicoumarol from moldy sweet clover, synthesis of this causative agent, and its application as a therapeutic anticoagulant in clinical medicine in 1941 (Link 1959). The notion of a coumarin-based rodenticide as a better âmouse-trapâ occurred to Link in 1945 while reviewing laboratory chemical and bioassay data. By 1948, the highly potent compound number 42, warfarin, was promoted as a rodenticide (Link 1959; Last 2002). Through laboratory studies and clinical use of warfarin (Coumadin), a detailed understanding of the mechanism of action and toxicity of warfarin and related ARs (Fig. 3.1) unfolded in the decades that followed
Funding grant proposals for scientific research: retrospective analysis of scores by members of grant review panel
Objective To quantify randomness and cost when choosing health and medical research projects for funding
Open versus closed IV infusion systems: a state based model to predict risk of catheter associated blood stream infections
Objectives - To quantify the change in risk of central line associated blood stream infection (CLABSI) following the introduction of a closed infusion container in intensive care units (ICUs) in two Latin American cities. Design - A state-space model was used to describe the flow of admissions through the ICU. This approach correctly treats infection as a time-dependent covariate. Results - A closed system reduced the risk of CLABSI. The hazard ratios for the closed versus open container were between 0.15 and 0.31 (p valuesConclusions - The data reveal costs are saved and health benefits gained from fewer cases of CLABSI after adoption of a closed infusion system. Information is required on the costs of implementing the closed system widely in these settings
Webportal
Establish (and maintain) an innovative webportal (the Radioecology Exchange). Ahead of schedule an interim open access website (wiki) was created in time for the
STAR project to be publicised at the International Conference on Radioecology and Environmental Radioactivity held in Hamilton, Canada in June 2011. Prior to this a
protected access website (also a wiki) was created for STAR partners to exchange information. The open access website was upgraded in October 2011 and is continually developing as the project progresses
Functional neurological disorders: evaluating the efficacy of facilitator-led psychoeducation for psychogenic non-epileptic seizures and the psychological profile of MRI Negative Cauda Equina syndrome
[No Deposit Agreement
Quantum, nonlocal aberration cancellation
Phase distortions, or aberrations, can negatively influence the performance of an optical imaging system. Through the use of position-momentum entangled photons, we nonlocally correct for aberrations in one photonâs optical path by intentionally introducing the complementary aberrations in the optical path of the other photon. In particular, we demonstrate the simultaneous nonlocal cancellation of aberrations that are of both even and odd order in the photonsâ transverse degrees of freedom. We also demonstrate a potential application of this technique by nonlocally canceling the effect of defocus in a quantum imaging experiment and thereby recover the original spatial resolution
Polyclonal and monoclonal antibodies for induction therapy in kidney transplant recipients
Background Prolonging kidney transplant survival is an important clinical priority. Induction immunosuppression with antibody therapy is recommended at transplantation and nonâdepleting interleukinâ2 receptor monoclonal antibodies (IL2Ra) are considered first line. It is suggested that recipients at high risk of rejection should receive lymphocyteâdepleting antibodies but the relative benefits and harms of the available agents are uncertain. Objectives We aimed to: evaluate the relative and absolute effects of different antibody preparations (except IL2Ra) when used as induction therapy in kidney transplant recipients; determine how the benefits and adverse events vary for each antibody preparation; determine how the benefits and harms vary for different formulations of antibody preparation; and determine whether the benefits and harms vary in specific subgroups of recipients (e.g. children and sensitised recipients). Search methods We searched the Cochrane Kidney and Transplant's Specialised Register to 29 August 2016 through contact with the Information Specialist using search terms relevant to this review. Selection criteria Randomised controlled trials (RCTs) comparing monoclonal or polyclonal antibodies with placebo, no treatment, or other antibody therapy in adults and children who had received a kidney transplant. Data collection and analysis Two authors independently extracted data and assessed risk of bias. Dichotomous outcomes are reported as relative risk (RR) and continuous outcomes as mean difference (MD) together with their 95% confidence intervals (CI). Main results We included 99 studies (269 records; 8956 participants; 33 with contemporary agents). Methodology was incompletely reported in most studies leading to lower confidence in the treatment estimates. Antithymocyte globulin (ATG) prevented acute graft rejection (17 studies: RR 0.63, 95% CI 0.51 to 0.78). The benefits of ATG on graft rejection were similar when used with (12 studies: RR 0.61, 0.49 to 0.76) or without (5 studies: RR 0.65, 0.43 to 0.98) calcineurin inhibitor (CNI) treatment. ATG (with CNI therapy) had uncertain effects on death (3 to 6 months, 3 studies: RR 0.41, 0.13 to 1.22; 1 to 2 years, 5 studies: RR 0.75, 0.27 to 2.06; 5 years, 2 studies: RR 0.94, 0.11 to 7.81) and graft loss (3 to 6 months, 4 studies: RR 0.60, 0.34 to 1.05; 1 to 2 years, 3 studies: RR 0.65, 0.36 to 1.19). The effect of ATG on deathâcensored graft loss was uncertain at 1 to 2 years and 5 years. In nonâCNI studies, ATG had uncertain effects on death but reduced deathâcensored graft loss (6 studies: RR 0.55, 0.38 to 0.78). When CNI and older nonâCNI studies were combined, a benefit was seen with ATG at 1 to 2 years for both allâcause graft loss (7 studies: RR 0.71, 0.53 to 0.95) and deathâcensored graft loss (8 studies: RR 0.55, 0.39 to 0.77) but not sustained longer term. ATG increased cytomegalovirus (CMV) infection (6 studies: RR 1.55, 1.24 to 1.95), leucopenia (4 studies: RR 3.86, 2.79 to 5.34) and thrombocytopenia (4 studies: RR 2.41, 1.61 to 3.61) but had uncertain effects on delayed graft function, malignancy, postâtransplant lymphoproliferative disorder (PTLD), and new onset diabetes after transplantation (NODAT). Alemtuzumab was compared to ATG in six studies (446 patients) with early steroid withdrawal (ESW) or steroid minimisation. Alemtuzumab plus steroid minimisation reduced acute rejection compared to ATG at one year (4 studies: RR 0.57, 0.35 to 0.93). In the two studies with ESW only in the alemtuzumab arm, the effect of alemtuzumab on acute rejection at 1 year was uncertain compared to ATG (RR 1.27, 0.50 to 3.19). Alemtuzumab had uncertain effects on death (1 year, 2 studies: RR 0.39, 0.06 to 2.42; 2 to 3 years, 3 studies: RR 0.67, 95% CI 0.15 to 2.95), graft loss (1 year, 2 studies: RR 0.39, 0.13 to 1.30; 2 to 3 years, 3 studies: RR 0.98, 95% CI 0.47 to 2.06), and deathâcensored graft loss (1 year, 2 studies: RR 0.38, 0.08 to 1.81; 2 to 3 years, 3 studies: RR 2.45, 95% CI 0.67 to 8.97) compared to ATG. Creatinine clearance was lower with alemtuzumab plus ESW at 6 months (2 studies: MD â13.35 mL/min, â23.91 to â2.80) and 2 years (2 studies: MD â12.86 mL/min, â23.73 to â2.00) compared to ATG plus triple maintenance. Across all 6 studies, the effect of alemtuzumab versus ATG was uncertain on allâcause infection, CMV infection, BK virus infection, malignancy, and PTLD. The effect of alemtuzumab with steroid minimisation on NODAT was uncertain, compared to ATG with steroid maintenance. Alemtuzumab plus ESW compared with triple maintenance without induction therapy had uncertain effects on death and allâcause graft loss at 1 year, acute rejection at 6 months and 1 year. CMV infection was increased (2 studies: RR 2.28, 1.18 to 4.40). Treatment effects were uncertain for NODAT, thrombocytopenia, and malignancy or PTLD. Rituximab had uncertain effects on death, graft loss, acute rejection and all other adverse outcomes compared to placebo. Authors' conclusions ATG reduces acute rejection but has uncertain effects on death, graft survival, malignancy and NODAT, and increases CMV infection, thrombocytopenia and leucopenia. Given a 45% acute rejection risk without ATG induction, seven patients would need treatment to prevent one having rejection, while incurring an additional patient experiencing CMV disease for every 12 treated. Excluding nonâCNI studies, the risk of rejection was 37% without induction with six patients needing treatment to prevent one having rejection. In the context of steroid minimisation, alemtuzumab prevents acute rejection at 1 year compared to ATG. Eleven patients would require treatment with alemtuzumab to prevent 1 having rejection, assuming a 21% rejection risk with ATG. Triple maintenance without induction therapy compared to alemtuzumab combined with ESW had similar rates of acute rejection but adverse effects including NODAT were poorly documented. Alemtuzumab plus steroid withdrawal would cause one additional patient experiencing CMV disease for every six patients treated compared to no induction and triple maintenance, in the absence of any clinical benefit. Overall, ATG and alemtuzumab decrease acute rejection at a cost of increased CMV disease while patientâcentred outcomes (reduced death or lower toxicity) do not appear to be improved
Education and training in radioecology during the EU-COMET project-successes and suggestions for the future
The 2014 Strategic Research Agenda (SRA) for Radioecology identified the key challenge in education and training (E&T) as being 'to maintain and develop a skilled workforce in Europe and world-wide, through university candidates and professionals trained within radioecology' since 'scientific research in radioecology and application of that knowledge ... requires scientists and workers with adequate competence and appropriate skills.' Radioecology is a multidisciplinary science and E&T is needed by both students and professionals within research, industry and radiation protection. In order to address these needs, the EU COMET project has developed an E&T web platform and arranged a number of field courses, training courses, PhD and MSc courses, refresher courses and workshops, drawing on the COMET consortium to assemble relevant experts. In addition, COMET has been engaged in discussions with stakeholders for more long-term solutions to maintain the sustainability of radioecology E&T after the end of the project. Despite much progress in some areas, many of the challenges outlined in the 2014 SRA remain, mainly due to the lack of sustainable dedicated funding. Future plans within the ALLIANCE radioecology platform and the CONCERT-European Joint Programme for the Integration of Radiation Protection Research must urgently address this lack of sustainability if radioecological competence is to be maintained in Europe
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