30 research outputs found

    A vision of middle school leadership

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    I take a moment to look at my watch and everything seems right on schedule. It\u27s 7:59 a.m. and the date is August 25, 1994, the first day of teacher workshops! A letter sent out three weeks ago to the 14 faculty and four staff members I will be working with assures me that all will be present for our first formal building meeting. Materials I had prepared during the months of June and July to prepare for the upcoming year are sitting ready to be picked up by what I have been told is one of the most dynamic groups of people to work with in the Northwood School District. Teacher and staff handbooks which include the revisions made to the district\u27s mission statement, philosophy, and 1994-95 goals are finally back from the press. Prior to my arrival the Northwood Middle School had not yet adopted building goals so I took the liberty of jotting down five goals that I assumed would be accepted by the staff. The rest of the materials were sitting outside the media center door with a note instructing them to take one of each item as they entered for the meeting

    A preferred vision for administering elementary schools: A reflective essay

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    Throughout our lives, we wear many different hats in the roles we perform. My first hat was one a student would wear to school. It was a colorful stocking hat which gave a hint to my personality and enthusiasm for learning and life. My outlook and values for education first began in the fall of 1965, when I as a youngster, walked down our farm driveway, waved good-bye to my mother and father, and boarded a big yellow school bus. It was indeed exciting. Little did I know how much education would affect my life. I will always be a life-long learner and am happy to have a career in the field of education

    Fijnstofemissie uit stallen: vleeskuikens = Dust emission from animal houses: broilers

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    In this study emissions of fine dust (PM10 and PM2.5) from houses for broilers were determined. In addition, emissions of ammonia, greenhouse gases and odour were determine

    Maatregelen ter vermindering van fijnstofemissie uit de pluimveehouderij: ionisatie bij leghennen in voliĂšrehuisvesting = Measures to reduce fine dust emission from poultry houses: ionization in aviary housing for layers

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    In this study the effect of a commercially available ionization system on emissions of fine dust from layers in aviary housing was investigated. Emissions of PM10 and PM2,5 were reduced by 23 and 38% respectively. No effect was found on personal dust exposure, animal behavior or animal performance. Optimizations, especially with regard to dust removal, are necessary to make the system applicable in layer houses in practice

    Fijnstofemissie uit stallen: vleeskalkoenen

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    In this study emissions of fine dust (PM10 and PM2.5) from houses for turkeys were determined. In addition, emissions of ammonia, greenhouse gases and odour were determine

    The age‐specific prevalence of human papillomavirus and risk of cytologic abnormalities in rural Nigeria: Implications for screen‐and‐treat strategies

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    Cervical screening for carcinogenic human papillomavirus (HPV) infection is being considered for low‐income countries. Effectiveness requires targeted screening in older women in whom prevalent infections are more likely to be persistent and predictive of precancer. Some studies in West Africa have found unusually high HPV prevalences across all adult ages, which may reduce the positive predictive value (PPV) of HPV‐based screening, if positivity in older women does not sufficiently predict elevated risk. We conducted a population‐based study in rural Nigeria to identify HPV prevalence and associated cervical abnormalities. Using stratified random sampling, we enrolled women age 15+. Nonvirgins had a cervical exam including liquid‐based cytology and PCR HPV DNA testing from residual cytology specimens. Two‐thirds of invited women participated, and 14.7% had detectable carcinogenic HPV, a proportion that did not decline with age ( p ‐trend = 0.36) and showed slight peaks in the 15–29 and 60–69 age groups. Among women of the age typically considered for screen‐and‐treat programs (30–49 years), 12.8% were HPV positive, and the PPV for high‐grade or worse cytology was 16.4%. Comparatively, women age < 30 were more likely to be HPV positive (18.9%, p = 0.03) with a lower PPV (4.2% p = 0.05). Among women age 50+ (typically excluded from screening in resource‐poor settings because inexpensive treatment is not available), HPV positivity was 14.2% with a PPV of 13.9%. In Irun and similar settings where HPV does not decline with age, HPV‐based screen‐and‐treat programs might be feasible for mid‐adult women because prevalence is sufficiently low and positivity predicts elevated risk of more easily treated precancer.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90127/1/26211_ftp.pd

    Monitoringsprogramma experimentele gecombineerde luchtwassers op veehouderijbedrijven = Measurement program on experimental multi-pollutant air scrubbers at animal houses

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    A measurement program was carried out in which the performance of 5 experimental scrubbers on animal farms was monitored for the removal of ammonia, odour and fine dust (PM10, PM2.5). This reports discusses and evaluates the realization of the program and its results

    Surrogate endpoint biomarkers for cervical cancer chemoprevention trials

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    Cervical intraepithelia neoplasia (CIN) represents a spectrum of epithelial changes that provide an excellent model for developing chemopreventive interventions for cervical cancer. Possible drug effect surrogate endpoint biomarkers are dependent on the agent under investigation. Published and preliminary clinical reports suggest retinoids and carotenoids are effective chemopreventive agents for CIN. Determination of plasma and tissue pharmacology of these agents and their metabolites could serve as drug effect intermediate endpoints. In addition, retinoic acid receptors could serve as both drug and biological effect intermediate endpoints. Possible biological effect surrogate endpoint biomarkers include cytomorphological parameters, proliferation markers, genomic markers, regulatory markers, and differentiation. Given the demonstrated causality of human papillomavirus (HPV) for cervical cancer, establishing the relationship to HPV will be an essential component of any biological intermediate endpoint biomarker. The pathologic effect surrogate endpoint biomarker for cervical cancer is CIN, used clinically for years. The desired effect for chemopreventive trials is complete regression or prevention of progression. In planning chemopreventive trials, investigators need to consider spontaneous regression rates, the subjective nature of detecting CIN, and the impact of biopsy on regression. If intermediate endpoint biomarkers that met the above criteria were available for cervical cancer, then new chemopreventive agents could be rapidly explored. The efficacy of these new agents could be determined with a moderate number of subjects exposed to minimal risk over an acceptable amount of time. The impacts on health care for women would be significant.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/38459/1/240590915_ftp.pd

    "Artiest met een staartje" : een onderzoek naar het gebruik van tijgers, zeeleeuwen, olifanten en kamelen in het circus

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    Onderzoek naar het welzijn van circusdieren. Ingegaan wordt op diverse aspecten, zoals: wet- en regelgeving, transport en huisvesting, training en voorstelling en ethiek. Hierbij wordt per dier bekeken hoe het is gesteld met de welzijnssituatie. Ook volgen aanbevelingen met betrekking tot wet- en regelgevin
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