158 research outputs found
Troublesome Knowledge of SoTL
This study explores the Scholarship of Teaching and Learning (SoTL) as a form of troublesome knowledge (Perkins 1999) that continues to trouble its practitioners. Forty-eight higher education professionals from six countries described their understanding of SoTL in an online survey; ten individuals participated in follow-up interviews to consider how SoTL experiences shape, support, or hinder academic identity and knowing. We categorize our findings according to the dynamic factors—personal, relational, and contextual—identified by Lieff et al (2012); we argue that SoTL serves to illuminate and expose tensions created by competing values and that these values can lead to, or create, a troublesome space wherein promoting SoTL can be enabling and disabling
Developments in the Australian Private Security Industry
Police necessarily retain the major role in enforcing the law after crimes have been committed and offenders have been apprehended. However, given that public sector policing draws heavily on equipment and personnel services supplied by private providers, and that public police officers have many offenders handed over to them by the private sector, private security could be considered ‘the primary protective resource’ (Pastor 2003, p. 44). Despite this, there is very little information publicly available on the range, size and scope of security industries in Australia and there is no comprehensive study of the growth of these industries, the functions of their different components, how they relate to each other and the effectiveness of different regulatory strategies. This paper reports on current aspects of the security industry in Australia as part of a wider study of these issues more generally
Path, place, and cover : observations in three Italian towns
Thesis. 1979. M.Arch--Massachusetts Institute of Technology. Dept. of Architecture.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH.Bibliography: p. 104-107.by Karen Barned, Mary Griffin.M.Arc
Conflicts and configurations in a liminal space: SoTL scholars’ identity development
Although academic identity has received attention in the literature, there have been few attempts to understand the influence on identity from engagement with the Scholarship of Teaching and Learning (SoTL). In this aper, we (a group of eight scholars from five different countries) describe how our interactions with SoTL have impacted the shaping of our academic identities. We have struggled to define the value, purpose, outcomes, and meanings of being a disciplined SoTL scholar, sometimes in addition to and sometimes in opposition to being a disciplinary scholar. Through analysis of our own 100-word reflective narratives, we identify common conflicts and configurations around our experiences of developing a SoTL identity. We describe how navigating among conflicting identities can lead us into a troublesome but deeply reflective liminal space, prompting profound realizations and the reconstruction of academic identity. Drawing on this notion of liminality helps us to understand our journeys as moving through a necessary and important transformational landscape, and allows us to suggest ways to support those engaging with SoTL to develop an integrative SoTL identity
Does Type of Tumor Histology Impact Survival among Patients with Stage IIIB/IV Non-Small Cell Lung Cancer Treated with First-Line Doublet Chemotherapy?
Chemotherapy regimens may have differential efficacy by histology in nonsmall cell lung cancer (NSCLC). We examined the impact of histology on survival of patients (N = 2,644) with stage IIIB/IV NSCLC who received first-line cisplatin/carboplatin plus gemcitabine (C/C+G) and cisplatin/carboplatin plus a taxane (C/C+T) identified retrospectively in the SEER cancer registry (1997–2002). Patients with squamous and nonsquamous cell carcinoma survived 8.5 months and 8.1 months, respectively (P = .018). No statistically significant difference was observed in survival between C/C+G and C/C+T in both histologies. Adjusting for clinical and demographic characteristics, the effect of treatment regimen on survival did not differ by histology (P for interaction = .257). There was no statistically significant difference in hazard of death by histology in both groups. These results contrast the predictive role of histology and improved survival outcomes observed for cisplatin-pemetrexed regimens in advanced nonsquamous NSCLC
Phase-specific and lifetime costs of cancer care in Ontario, Canada
BACKGROUND: Cancer is a major public health issue and represents a significant economic burden to health care systems worldwide. The objective of this analysis was to estimate phase-specific, 5-year and lifetime net costs for the 21 most prevalent cancer sites, and remaining tumour sites combined, in Ontario, Canada. METHODS: We selected all adult patients diagnosed with a primary cancer between 1997 and 2007, with valid ICD-O site and histology codes, and who survived 30 days or more after diagnosis, from the Ontario Cancer Registry (N = 394,092). Patients were linked to treatment data from Cancer Care Ontario and administrative health care databases at the Institute for Clinical and Evaluative Sciences. Net costs (i.e., cost difference between patients and matched non-cancer control subjects) were estimated by phase of care and sex, and used to estimate 5-year and lifetime costs. RESULTS: Mean net costs of care (2009 CAD) were highest in the initial (6 months post-diagnosis) and terminal (12 months pre-death) phases, and lowest in the (3 months) pre-diagnosis and continuing phases of care. Phase-specific net costs were generally lowest for melanoma and highest for brain cancer. Mean 5-year net costs varied from less than 60,000 for multiple myeloma and leukemia. Lifetime costs ranged from less than 110,000 for leukemia, multiple myeloma, lymphoma and breast cancer. CONCLUSIONS: Costs of cancer care are substantial and vary by cancer site, phase of care and time horizon analyzed. These cost estimates are valuable to decision makers to understand the economic burden of cancer care and may be useful inputs to researchers undertaking cancer-related economic evaluations
A Molecular Epidemiological Study of var Gene Diversity to Characterize the Reservoir of Plasmodium falciparum in Humans in Africa
BACKGROUND: The reservoir of Plasmodium infection in humans has traditionally been defined by blood slide positivity. This study was designed to characterize the local reservoir of infection in relation to the diverse var genes that encode the major surface antigen of Plasmodium falciparum blood stages and underlie the parasite's ability to establish chronic infection and transmit from human to mosquito. METHODOLOGY/PRINCIPAL FINDINGS: We investigated the molecular epidemiology of the var multigene family at local sites in Gabon, Senegal and Kenya which differ in parasite prevalence and transmission intensity. 1839 distinct var gene types were defined by sequencing DBLα domains in the three sites. Only 76 (4.1%) var types were found in more than one population indicating spatial heterogeneity in var types across the African continent. The majority of var types appeared only once in the population sample. Non-parametric statistical estimators predict in each population at minimum five to seven thousand distinct var types. Similar diversity of var types was seen in sites with different parasite prevalences. CONCLUSIONS/SIGNIFICANCE: Var population genomics provides new insights into the epidemiology of P. falciparum in Africa where malaria has never been conquered. In particular, we have described the extensive reservoir of infection in local African sites and discovered a unique var population structure that can facilitate superinfection through minimal overlap in var repertoires among parasite genomes. Our findings show that var typing as a molecular surveillance system defines the extent of genetic complexity in the reservoir of infection to complement measures of malaria prevalence. The observed small scale spatial diversity of var genes suggests that var genetics could greatly inform current malaria mapping approaches and predict complex malaria population dynamics due to the import of var types to areas where no widespread pre-existing immunity in the population exists
SARS-CoV-2 susceptibility and COVID-19 disease severity are associated with genetic variants affecting gene expression in a variety of tissues
Variability in SARS-CoV-2 susceptibility and COVID-19 disease severity between individuals is partly due to
genetic factors. Here, we identify 4 genomic loci with suggestive associations for SARS-CoV-2 susceptibility
and 19 for COVID-19 disease severity. Four of these 23 loci likely have an ethnicity-specific component.
Genome-wide association study (GWAS) signals in 11 loci colocalize with expression quantitative trait loci
(eQTLs) associated with the expression of 20 genes in 62 tissues/cell types (range: 1:43 tissues/gene),
including lung, brain, heart, muscle, and skin as well as the digestive system and immune system. We perform
genetic fine mapping to compute 99% credible SNP sets, which identify 10 GWAS loci that have eight or fewer
SNPs in the credible set, including three loci with one single likely causal SNP. Our study suggests that the
diverse symptoms and disease severity of COVID-19 observed between individuals is associated with variants across the genome, affecting gene expression levels in a wide variety of tissue types
The effects of problem-oriented policing on crime and disorder
Problem-oriented Policing (POP) was first introduced by Herman Goldstein in 1979. The
approach was one of a series of responses to a crisis in effectiveness and legitimacy in
policing that emerged in the 1970s and 1980s. Goldstein argued that police were not
being effective in preventing and controlling crime because they had become too focused
on the “means” of policing and had neglected the “goals” of preventing and controlling
crime and other community problems. Goldstein argued that the unit of analysis in
policing must become the “problem” rather than calls or crime incidents as was the case
during that period. POP has had tremendous impact on American policing, and is now
one of the most widely implemented policing strategies in the US.
To synthesize the extant problem-oriented policing evaluation literature and assess the
effects of problem-oriented policing on crime and disorder
Eligible studies had to meet three criteria: (1) the SARA model was used for a problemoriented
policing intervention; (2) a comparison group was included; (3) at least one
crime or disorder outcome was reported with sufficient data to generate an effect size.
The unit of analysis could be people or places.
Several strategies were used to perform an exhaustive search for literature fitting the
eligibility criteria. First, a keyword search was performed on an array of online abstract
databases. Second, we reviewed the bibliographies of past reviews of problem-oriented
policing. Third, we performed forward searches for works that have cited seminal
problem-oriented policing studies. Fourth, we performed hand searches of leading
journals in the field. Fifth, we searched the publications of several research and
professional agencies. Sixth, after finishing the above searches we e-mailed the list of
studies meeting our eligibility criteria to leading policing scholars knowledgeable in the
area of problem-oriented policing to ensure we had not missed any relevant studies.
For our ten eligible studies, we provide both a narrative review of effectiveness and a
meta-analysis. For the meta-analysis, we coded all primary outcomes of the eligible
studies and we report the mean effect size (for studies with more than one primary
outcome, we averaged effects to create a mean), the largest effect, and the smallest effect.
Because of the heterogeneity of our studies, we used a random effects model.
Based on our meta-analysis, overall problem-oriented policing has a modest but
statistically significant impact on reducing crime and disorder. Our results are consistent
when examining both experimental and quasi-experimental studies.
Conclusions:
We conclude that problem-oriented policing is effective in reducing crime and disorder,
although the effect is fairly modest. We urge caution in interpreting these results because
of the small number of methodologically rigorous studies on POP and the diversity of
problems and responses used in our eligible studies
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