Teacher\u27s perceptions of the introduction of a middle school within a Western Australian independent girls\u27 school

In 1995 an independent girls\u27 school in Perth, Western Australia, decided to introduce a Middle School. \u27This meant changing the traditional structure of grouping children aged between 5 and 12 years into primary school and children aged between 13 and 17 years into secondary school. The aim of the Middle School was to provide increased educational opportunities for 12 to 14 year old students. When the introduction of a Middle School was announced teaching staff expressed a number of concerns with respect to their new roles and the new school operations. These concerns raised questions about whether years of teaching experience and subject department membership had any effect on the staffs\u27 perceptions of the introduction of the Middle School. The study investigated these questions within the framework of qualitative methodology by collecting data from participant observation, interviews and documents, and analysing it by using the constant comparative method. In broad terms, the findings in the study indicated that the teaching staff at the school were willing to implement the educational changes associated with introducing a Middle School. \u27This acceptance, however, was conditional upon their concerns being satisfactorily addressed. In general the concerns focussed on the need for whole school communication, the availability of appropriate and practical professional development opportunities and the capacity to be involved in the decision making process. These concerns tended to be consistent among staff regardless of years of teaching experience or the department to which they belonged. This study provided an opportunity for staff to express views about the impact of introducing the Middle School. It also gave the school\u27s administration a chance to become aware of teachers\u27 concerns that had to be addressed when attempting to manage a major structural change. Ultimately the study may enhance the prospect of other schools being able to more effectively implement a Middle School because they will be better placed to anticipate and accommodate staff uncertainties

Pseudo-binary phase diagram for Zr-based in situ ß phase composites

The pseudo-binary (quasi-equilibrium) phase diagram for Zr-based bulk metallic glasses with crystalline in situ precipitates (ß phase) has been constructed from high-temperature phase information and chemical composition analysis. The phase evolution was detected in situ by high-energy synchrotron x-ray diffraction followed by Rietveld analysis of the data for volume fraction estimation. The phase diagram delineates phase fields and allows the control of phase fractions. Combined with related previous work by the authors, this diagram offers a unique opportunity to control both the morphology and volume of the dendritic ß phase precipitates to enhance the properties of the composites

Pilot Experiments with Electrodialysis and Ozonation for the Production of a Fertilizer from Urine

Pilot tests were performed with a process combination of electrodialysis and ozonation for the removal of micropollutants and the concentration of nutrients in urine. In continuous and batch experiments, maximum concentration factors up to 3.5 and 4.1 were obtained, respectively. The desalination capacity did not decrease significantly during continuous operation periods of several weeks. Membrane cleaning after 195 days resulted in approximately 35% increase in desalination rate. The Yeast Estrogen Screen (YES), a bioassay that selectively detects oestrogenic compounds, confirmed that about 90% of the oestrogenic activity was removed by electrodialysis. HPLC analysis showed that ibuprofen was removed to a high extent, while other micropollutants were below the detection limit. In view of the fact that ibuprofen is among the most rapidly transported micropollutants in electrodialysis processes, this result indicates that electrodialysis provides an effective barrier for micropollutants. Standardised plant growth tests were performed in the field with the salt solution resulting from the treatment by electrodialysis and subsequent ozonation. The results show that the plant height is comparable to synthetic fertilisers, but the crop yield is slightly lower. The latter is probably caused by volatilisation losses during field application, which can be prevented by improved application technologies

Thromboelastometry for the assessment of coagulation abnormalities in early and established adult sepsis: a prospective cohort study

INTRODUCTION: The inflammatory response to an invading pathogen in sepsis leads to complex alterations in hemostasis by dysregulation of procoagulant and anticoagulant factors. Recent treatment options to correct these abnormalities in patients with sepsis and organ dysfunction have yielded conflicting results. Using thromboelastometry (ROTEM(R)), we assessed the course of hemostatic alterations in patients with sepsis and related these alterations to the severity of organ dysfunction. METHODS: This prospective cohort study included 30 consecutive critically ill patients with sepsis admitted to a 30-bed multidisciplinary intensive care unit (ICU). Hemostasis was analyzed with routine clotting tests as well as thromboelastometry every 12 hours for the first 48 hours, and at discharge from the ICU. Organ dysfunction was quantified using the Sequential Organ Failure Assessment (SOFA) score. RESULTS: Simplified Acute Physiology Score II and SOFA scores at ICU admission were 52 +/- 15 and 9 +/- 4, respectively. During the ICU stay the clotting time decreased from 65 +/- 8 seconds to 57 +/- 5 seconds (P = 0.021) and clot formation time (CFT) from 97 +/- 63 seconds to 63 +/- 31 seconds (P = 0.017), whereas maximal clot firmness (MCF) increased from 62 +/- 11 mm to 67 +/- 9 mm (P = 0.035). Classification by SOFA score revealed that CFT was slower (P = 0.017) and MCF weaker (P = 0.005) in patients with more severe organ failure (SOFA >or= 10, CFT 125 +/- 76 seconds, and MCF 57 +/- 11 mm) as compared with patients who had lower SOFA scores (SOFA <10, CFT 69 +/- 27, and MCF 68 +/- 8). Along with increasing coagulation factor activity, the initially increased International Normalized Ratio (INR) and prolonged activated partial thromboplastin time (aPTT) corrected over time. CONCLUSIONS: Key variables of ROTEM(R) remained within the reference ranges during the phase of critical illness in this cohort of patients with severe sepsis and septic shock without bleeding complications. Improved organ dysfunction upon discharge from the ICU was associated with shortened coagulation time, accelerated clot formation, and increased firmness of the formed blood clot when compared with values on admission. With increased severity of illness, changes of ROTEM(R) variables were more pronounced

Accidental Hypothermia in a Swiss Alpine Trauma Centre-Not an Alpine Problem.

BACKGROUND Research in accidental hypothermia focuses on trauma patients, patients exposed to cold environments or patients after drowning but rarely on hypothermia in combination with intoxications or on medical or neurological issues. The aim of this retrospective single-centre cohort study was to define the aetiologies, severity and relative incidences of accidental hypothermia, methods of measuring temperature and in-hospital mortality. METHODS The study included patients ≥18 years with a documented body temperature ≤35 °C who were admitted to the emergency department (ED) of the University Hospital in Bern between 2000 and 2019. RESULTS 439 cases were included, corresponding to 0.32 per 1000 ED visits. Median age was 55 years (IQR 39-70). A total of 167 patients (38.0%) were female. Furthermore, 63.3% of the patients suffered from mild, 24.8% from moderate and 11.9% from severe hypothermia. Exposure as a single cause for accidental hypothermia accounted for 12 cases. The majority were combinations of hypothermia with trauma (32.6%), medical conditions (34.2%), neurological conditions (5.2%), intoxications (20.3%) or drowning (12.0%). Overall mortality was 22.3% and depended on the underlying causes, severity of hypothermia, age and sex

In situ\textit{In situ} hydride breathing during the template-assisted electrodeposition of Pd nanowires

We investigated the structural evolution of electrochemically fabricated Pd nanowires $\textit{in situ}$ by means of grazing-incidence transmission small- and wide-angle x-ray scattering (GTSAXS and GTWAXS), x-ray fluorescence (XRF) and 2-dimensional surface optical reflectance (2D-SOR). This shows how electrodeposition and the hydrogen evolution reaction (HER) compete and interact during Pd electrodepositon. During the bottom-up growth of the nanowires, we show that $\beta$-phase Pd hydride is formed. Suspending the electrodeposition then leads to a phase transition from $\beta$- to $\alpha$-phase Pd hydride. Additionally, we find that grain coalescence later hinders the incorporation of hydrogen in the Pd unit cell. GTSAXS and 2D-SOR provide complementary information on the volume fraction of the pores occupied by Pd, while XRF was used to monitor the amount of Pd electrodeposited.Comment: 17 pages, 11 figures, 4 appendice

ROTULAGEM DE SUPLEMENTOS DE WHEY PROTEIN DISPONÃVEIS NO MERCADO BRASILEIRO: ANÃLISE CONFORME LEGISLAÇÃO VIGENTE

Athletes, physically active people, and even those with chronic diseases, are increasingly looking for protein dietary supplements to get muscle mass growth. This study aims to verify the energy density, carbohydrates, proteins, sodium and essential amino acids in whey protein product labels available in physical and virtual stores of Brazilian market, qualitatively and quantitatively. This is a descriptive observational study: aminogram values were analyzed according to current Normative Instruction. We examined 75 labels of whey protein products with values. of macronutrients on labels. It was possible to quantify the total manufacturers with values within the recommended by the legislation. The data obtained are relevant to the population for choosing the products to be consumed. The results show that the communication on labels does not reach the minimum recommendation required by the legislation. Food supplements nutritional information must be simple and clear, enabling a better analysis of products quality, assisting health professionals and general public in their choices.Atletas, o público fisicamente ativo e portadores de doenças crônicas buscam cada vez mais por suplementos alimentares proteicos para aumento de massa muscular. Este estudo tem como objetivo verificar a densidade energética, carboidratos, proteínas, sódio e aminoácidos essenciais nos rótulos de produtos de whey protein disponíveis no mercado brasileiro, qualitativa e quantitativamente. Trata-se de um estudo observacional descritivo. Os valores considerados adequados para cada aminoácido essencial avaliado foram baseados na Instrução Normativa nº 28, de 26 de julho de 2018. Foram analisados 75 rótulos de produtos de whey protein, tanto em lojas físicas quanto virtuais, dos quais todos apresentavam descritos valores de macronutrientes nos rótulos. A partir dos dados coletados no estudo, foi possível quantificar o total de fabricantes e, a partir dos rótulos, a avaliação dos produtos com valores dentro do esperado pela legislação. Os dados obtidos têm relevância para a população no ato da escolha do suplemento nutricional. Os resultados mostram que a comunicação nos rótulos não alcança a recomendação mínima exigida pela Legislação, a qual é fundamental para análise da qualidade dos produtos disponíveis, não somente pela população em geral que os consume, mas também pelos profissionais que os indicam

Barriers to evidence use for sustainability: Insights from pesticide policy and practice.

Calls for supporting sustainability through more and better research rest on an incomplete understanding of scientific evidence use. We argue that a variety of barriers to a transformative impact of evidence arises from diverse actor motivations within different stages of evidence use. We abductively specify this variety in policy and practice arenas for three actor motivations (truth-seeking, sense-making, and utility-maximizing) and five stages (evidence production, uptake, influence on decisions, effects on sustainability outcomes, and feedback from outcome evaluations). Our interdisciplinary synthesis focuses on the sustainability challenge of reducing environmental and human health risks of agricultural pesticides. It identifies barriers resulting from (1) truth-seekers' desire to reduce uncertainty that is complicated by evidence gaps, (2) sense-makers' evidence needs that differ from the type of evidence available, and (3) utility-maximizers' interests that guide strategic evidence use. We outline context-specific research-policy-practice measures to increase evidence use for sustainable transformation in pesticides and beyond

Direct and seasonal legacy effects of the 2018 heat wave and drought on European ecosystem productivity

In summer 2018, central and northern Europe were stricken by extreme drought and heat (DH2018). The DH2018 differed from previous events in being preceded by extreme spring warming and brightening, but moderate rainfall deficits, yet registering the fastest transition between wet winter conditions and extreme summer drought. Using 11 vegetation models, we show that spring conditions promoted increased vegetation growth, which, in turn, contributed to fast soil moisture depletion, amplifying the summer drought. We find regional asymmetries in summer ecosystem carbon fluxes: increased (reduced) sink in the northern (southern) areas affected by drought. These asymmetries can be explained by distinct legacy effects of spring growth and of water-use efficiency dynamics mediated by vegetation composition, rather than by distinct ecosystem responses to summer heat/drought. The asymmetries in carbon and water exchanges during spring and summer 2018 suggest that future land-management strategies could influence patterns of summer heat waves and droughts under long-term warming