435 research outputs found
An investigation of the impact that engaging teachers in research activity has for teacher voice, identity and empowerment
This thesis examines the engagement in research development activity of
teachers from two multi-school groups, with particular regard to the impacts
that this had for teacher voice, their reflective capacities and their sense of
empowerment. Moreover, where such impacts were noted, this also had
implications for teacher identity and teachers developing a sense of
themselves as âteacher researchersâ. The thesis is the product of a two-year
ethnographic study where I attended the facilitated research development
activities alongside the teachers. I was researching, acting as observer,
holding focus groups, undertaking interviews, holding formal and informal
conversations with teachers and gathering field notes (Madden, 2010). One
research site was a Multi-Academy Trust (MAT) made up of twelve schools,
ten of which were primary schools and two high schools, and that stretched
across a 200 mile range from the South to the Midlands of England. The
other site was a Teaching School Alliance (TSA) of nine schools including
eight primary schools and one high school in the North of England. In
addition, while both groups were involved in an informal yet academically led
research development programme, the MAT was also engaged with
additional Masterâs accredited programmes.
This research outlines the contexts in which these school groupings were
operating, tracing the increasing measures used to control and scrutinise the
work of teachers (Ball, 2013; Evans, 2011). The thesis considers the
development of teacher researchers drawing from the ideas of Lewin and
Stenhouse. It utilises Vygotskyâs socio-cultural theory, drawing on issues
around communities of practice, figured worlds and understandings of
teacher identity (Holland et al, 1998; Lave and Wenger, 1991). In this way, a
case is developed that increasing innovation and creative thinking in
teaching can be facilitated where teachers engage with research activity. As
Lave (1991) argued, situated learning happens as a consequence of the
activity, the culture and context where this takes place.
Undertaking ethnographic study facilitates the researcher in considering a
range of cultural artefacts together with taking into consideration the
thoughts and feelings of the actors involved and unpacking the connections
between these elements (OâReilly, 2012). This thesis provides the reader
with a unique insight into the journey of the teachers undertaking research,
illustrating their constructs of research and of teacher researchers including
the emotional and ethical investments in their roles. Its novelty lies both in
relation to its examination of teachersâ responses to this programme of
activity and with regard to the insights that this offers around new
organisational forms in respect of the MAT and TSA involved. Using an
inductive rationale, data were categorised using a thematic approach, data
were clustered, and then linked back to the literature to enrich and extend
understandings of the data (Lingard et al, 2008).
The thesis demonstrated how teacher researcher communities of practice
formed organically and how these communities had a significant impact on
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developing critical thinking and in sustaining teachersâ engagement with
research. Moreover, as the research journey progressed, there was
evidence that teacher identity, agency and their sense of power were
shifting, moving teachers towards ârefiguringâ their world where they
embodied deeper understandings of what it was to be teacher researchers.
As teacher morale and confidence grew, teachers were feeling empowered
to make decisions and offer advice demonstrating the process of figuring a
new identity as âteacher researcherâ. Nonetheless, the demands of
assessment were high, and indeed led to some withdrawals from the
programme in the MAT, whilst the TSA enjoyed the freedoms offered by a
programme devoid of such constraints. Indeed, one teacher in each setting
reported their intention of leaving the profession because they became
uncomfortable with the status quo in their schools, which they felt was
hampering their ability to grow as a practitioner. Nonetheless, all of the
teachers, without exception, valued their research journey as something that
had made a considerable impact on them, both as teachers and at a more
personal level
Effect of Pair Housing Versus Individual and Group Housing on Behavioural Patterns of Buffalo Calves
This study aimed to evaluate the effect of pair housing versus individual and group housing on behavioural patterns of female buffalo calves (n = 18; 15.0±3.0 days of age) were assigned randomly to 1 of 3 treatments of group housing with (C1=one calf/pen, C2=two calves/pen, or C3= three calves/pen) supplying a total pen space allowance of 1.82 m2 /calf, regardless of pen size. Behaviour was recorded by direct observation throughout the day from 10:00 to 14:00 clock, during a single day each week for 12 weeks using scan sampling every 15 min within 4 hoursâ observation sessions. Calves housed in C2 group showed more (P †0.05) eating and drinking, chewing/ruminating, object manipulation and self grooming, lying activities, and less (P < 0.05) inactivity and standing when compared to calves housed in C1 and C3 groups. In conclusion, raising buffalo calves in paired housing system provided calves more opportunity to express their comfort, grooming, and feeding activities compared to individual and group housing system, however further investigation is still required to study the effect of paired housing system on the performance and physiological indicators in buffalo calves
Effects of Propolis, Ascorbic Acid and Vitamin E on Thyroid and Corticosterone Hormones in Heat Stressed Broilers
The study was designed to evaluate the effect of oxidative stress during the summer on serum levels of Triiodothyronine (T3), thyroxine (T4) and corticosterone hormones in Ross 308 broiler chickens and to compare the efficacy of propolis, ascorbic acid and vitamin E (α-tocopherol acetate) as antioxidants in amelioration of heat stress and normalization of serum T3 and T4 and corticosterone levels in broilers. Birds were divided into five groups during the experimental period (15 to 42 days of age), the positive control group (G1) was kept under thermo-neutral condition (28.0±4.0°C ) and fed control diet, while the other four groups were exposed to heat stress (38.0±1.4°C), control group (G2) chicks were fed control diet without additives, propolis group (G3) chicks were supplemented with 250 mg Chinese ether extracted propolis /kg diet, group (G4) supplemented with 250 mg ascorbic acid/kg diet and group (G5) supplemented with 250 mg of α-tocopherol acetate/kg diet (vitamin E). At the end of day 42, five broilers were randomly chosen from each treatment and slaughtered, and then sera were collected to estimate T3 and T4 and corticosterone levels. The results indicated that dietary supplementation of broilers with 250 mg/kg diet propolis, vitamin E or vitamin C can attenuate heat stress induced oxidative damage. These positive effects were evidenced by reduced serum corticosterone levels and improvement in thyroid hormonal levels in comparison to non-supplemented birds reared under heat stress
The Effect of Chinese Propolis Supplementation on Ross Broiler Performance and Carcass Characteristics
The experiment was conducted to investigate the effects of Ether Extract of Propolis (EEP) on Ross (308) broiler performance and carcass characteristics. This experiment was carried out in a completely randomized design with 5 treatments (different levels of propolis including 0, 100, 250, 500 and 750 mg/kg diet) for 6 weeks. The mean weight gain, feed consumption and feed conversion ratio were recorded weekly. In addition At 42 days old the total body weight, total body weight gain, carcass and some internal organs relative weights were recorded. The results clarified that, the weight gain was significantly reduced in the 4th and 6th week (P<0.05), while the feed consumption, feed efficiency were non significantly (P>0.05) reduced for propolis fed birds in comparison to those fed control diet, Furthermore, inclusion of 100, 250, 500 and 750 mg/kg diet Propolis significantly reduced body weight at 42 days old and total body weight gain in comparison to control diet (P < 0.05). Under the condition of this experiment, prolonged use of propolis had adverse effect on performance of broilers. Also, all doses of propolis had non-significant negative effect on liver, heart, gizzard and carcass relative weight. In conclusion, EEP has no beneficial effect on performance and Carcass characteristics of Broilers
The Effect of Heat Stress on Blood Picture of Japanese Quail
This study aimed to evaluate the effect of heat stress on quail hematological parameters. A total number of 300 Japanese quail chicks (Coturnix Coturnix japonica) of 28 days old were exposed to different levels of raising temperatures (22, 29, 34, 36 and 40 ÂșC) for 15 days. At 42 days old, blood samples were collected from 14 birds (7 males + 7 females) that were randomly selected. The samples were used for determining red blood cells count, hemoglobin concentration, packed cell volume, total and differential white blood cells count, heterophils/ lymphocyte (H/L) ratio, mean corpuscular hemoglobin, mean corpuscular volume and mean corpuscular hemoglobin concentration. The obtained results indicated that, rearing quail birds under high environmental conditions during fattening period has a great adverse effect on these blood parameters
The outsider looking in: developing deeper understandings of the complexities in âleadingâ professional learning in schools as âthe knowledgeable otherâ
This article examines leadership and practitioner professional learning (PL) across two multi-school networks. This ethnographic empirical study involved the development of research communities comprised of teacher-led research projects in collaboration with academic researchers (ourselves). We explore what the impact this type of PL and our role as âoutsidersâ had on developing teacher agency and teacher/leader identity, and how leadership for professional learning (LfPL) emerged through these research activities. Our research sites were a Multi-Academy Trust (MAT) and a Teaching School Alliance (TSA) in England. Ethnographic data were collected over a three-year period. Significantly, our approach to understanding the complexity of these learning contexts draws upon socio-cultural theory, particularly Figured Worlds to construct understandings of PL within an identity and agency framework. Further, it utilises the Bakhtinian concept of outsideness to theorise how knowledge is mobilised through these collaborations. This approach offers novel insights for conceptualising LfPL as the intra-actions and practices of our research participants as they mediate our entangled PL spaces as leaders, teachers and researchers, together with developing understandings of the complexity of academic positionality as âthe more knowledgeable otherâ among those who are actually in the know
Antimicrobial resistance among migrants in Europe: a systematic review and meta-analysis
BACKGROUND: Rates of antimicrobial resistance (AMR) are rising globally and there is concern that increased migration is contributing to the burden of antibiotic resistance in Europe. However, the effect of migration on the burden of AMR in Europe has not yet been comprehensively examined. Therefore, we did a systematic review and meta-analysis to identify and synthesise data for AMR carriage or infection in migrants to Europe to examine differences in patterns of AMR across migrant groups and in different settings. METHODS: For this systematic review and meta-analysis, we searched MEDLINE, Embase, PubMed, and Scopus with no language restrictions from Jan 1, 2000, to Jan 18, 2017, for primary data from observational studies reporting antibacterial resistance in common bacterial pathogens among migrants to 21 European Union-15 and European Economic Area countries. To be eligible for inclusion, studies had to report data on carriage or infection with laboratory-confirmed antibiotic-resistant organisms in migrant populations. We extracted data from eligible studies and assessed quality using piloted, standardised forms. We did not examine drug resistance in tuberculosis and excluded articles solely reporting on this parameter. We also excluded articles in which migrant status was determined by ethnicity, country of birth of participants' parents, or was not defined, and articles in which data were not disaggregated by migrant status. Outcomes were carriage of or infection with antibiotic-resistant organisms. We used random-effects models to calculate the pooled prevalence of each outcome. The study protocol is registered with PROSPERO, number CRD42016043681. FINDINGS: We identified 2274 articles, of which 23 observational studies reporting on antibiotic resistance in 2319 migrants were included. The pooled prevalence of any AMR carriage or AMR infection in migrants was 25·4% (95% CI 19·1-31·8; I2 =98%), including meticillin-resistant Staphylococcus aureus (7·8%, 4·8-10·7; I2 =92%) and antibiotic-resistant Gram-negative bacteria (27·2%, 17·6-36·8; I2 =94%). The pooled prevalence of any AMR carriage or infection was higher in refugees and asylum seekers (33·0%, 18·3-47·6; I2 =98%) than in other migrant groups (6·6%, 1·8-11·3; I2 =92%). The pooled prevalence of antibiotic-resistant organisms was slightly higher in high-migrant community settings (33·1%, 11·1-55·1; I2 =96%) than in migrants in hospitals (24·3%, 16·1-32·6; I2 =98%). We did not find evidence of high rates of transmission of AMR from migrant to host populations. INTERPRETATION: Migrants are exposed to conditions favouring the emergence of drug resistance during transit and in host countries in Europe. Increased antibiotic resistance among refugees and asylum seekers and in high-migrant community settings (such as refugee camps and detention facilities) highlights the need for improved living conditions, access to health care, and initiatives to facilitate detection of and appropriate high-quality treatment for antibiotic-resistant infections during transit and in host countries. Protocols for the prevention and control of infection and for antibiotic surveillance need to be integrated in all aspects of health care, which should be accessible for all migrant groups, and should target determinants of AMR before, during, and after migration. FUNDING: UK National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare Charity, the Wellcome Trust, and UK National Institute for Health Research Health Protection Research Unit in Healthcare-associated Infections and Antimictobial Resistance at Imperial College London
Surgical site infection after gastrointestinal surgery in high-income, middle-income, and low-income countries: a prospective, international, multicentre cohort study
Background: Surgical site infection (SSI) is one of the most common infections associated with health care, but its importance as a global health priority is not fully understood. We quantified the burden of SSI after gastrointestinal surgery in countries in all parts of the world.
Methods: This international, prospective, multicentre cohort study included consecutive patients undergoing elective or emergency gastrointestinal resection within 2-week time periods at any health-care facility in any country. Countries with participating centres were stratified into high-income, middle-income, and low-income groups according to the UN's Human Development Index (HDI). Data variables from the GlobalSurg 1 study and other studies that have been found to affect the likelihood of SSI were entered into risk adjustment models. The primary outcome measure was the 30-day SSI incidence (defined by US Centers for Disease Control and Prevention criteria for superficial and deep incisional SSI). Relationships with explanatory variables were examined using Bayesian multilevel logistic regression models. This trial is registered with ClinicalTrials.gov, number NCT02662231.
Findings: Between Jan 4, 2016, and July 31, 2016, 13 265 records were submitted for analysis. 12 539 patients from 343 hospitals in 66 countries were included. 7339 (58·5%) patient were from high-HDI countries (193 hospitals in 30 countries), 3918 (31·2%) patients were from middle-HDI countries (82 hospitals in 18 countries), and 1282 (10·2%) patients were from low-HDI countries (68 hospitals in 18 countries). In total, 1538 (12·3%) patients had SSI within 30 days of surgery. The incidence of SSI varied between countries with high (691 [9·4%] of 7339 patients), middle (549 [14·0%] of 3918 patients), and low (298 [23·2%] of 1282) HDI (p < 0·001). The highest SSI incidence in each HDI group was after dirty surgery (102 [17·8%] of 574 patients in high-HDI countries; 74 [31·4%] of 236 patients in middle-HDI countries; 72 [39·8%] of 181 patients in low-HDI countries). Following risk factor adjustment, patients in low-HDI countries were at greatest risk of SSI (adjusted odds ratio 1·60, 95% credible interval 1·05â2·37; p=0·030). 132 (21·6%) of 610 patients with an SSI and a microbiology culture result had an infection that was resistant to the prophylactic antibiotic used. Resistant infections were detected in 49 (16·6%) of 295 patients in high-HDI countries, in 37 (19·8%) of 187 patients in middle-HDI countries, and in 46 (35·9%) of 128 patients in low-HDI countries (p < 0·001).
Interpretation: Countries with a low HDI carry a disproportionately greater burden of SSI than countries with a middle or high HDI and might have higher rates of antibiotic resistance. In view of WHO recommendations on SSI prevention that highlight the absence of high-quality interventional research, urgent, pragmatic, randomised trials based in LMICs are needed to assess measures aiming to reduce this preventable complication
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