377 research outputs found
Enhancing extensive reading with data-driven learning
This paper investigates using data-driven learning (DDL) as a means of stimulating greater lexicogrammatical knowledge and reading speed among lower proficiency learners in an extensive reading program. For 16 weekly 90-minute sessions, an experimental group (12 students) used DDL materials created from a corpus developed from the Oxford Bookworms Graded Readers, while a control group (10 students) had no DDL input. Both classes were required to read a minimum of 200,000 words during the course. An embedded-experiment design (Edmonds & Kennedy, 2017) was adopted consisting of both qualitative and quantitative forms of investigation. Quantitative data from the Vocabulary Levels Test by Nation and Beglar (2007) and a C-test (Klein-Braley & Raatz, 1984) constructed from an upper-level Bookworms reader found statistically significant lexicogrammatical improvements for both groups, but greater improvement took place within the control group. Qualitative data derived from a repertory grid analysis of student constructs revealed several possible reasons for the experimental groupâs lack of engagement with DDL. The study concludes that careful attention to studentsâ learning preferences and a softening of the DDL approach may ensure better results with lower proficiency learners
SB46-20/21: Resolution Establishing the ASUM Legislative Priorities
SB46-20/21: Resolution Establishing the ASUM Legislative Priorities. This resolution passed on a 19Y-1N-0A vote during the December 3, 2020 meeting of the Associated Students of the University of Montana (ASUM)
Outcome of elective endovascular abdominal aortic aneurysm repair in nonagenarians
ObjectiveCompared with open repair of abdominal aortic aneurysms (AAA), endovascular repair (EVAR) is associated with decreased perioperative morbidity and mortality in a standard patient population. This study sought to determine if the advantage of EVAR extends to patients aged â„90 years.MethodsThis was a retrospective review from a prospectively maintained computerized database. Of the 322 patients aged â„80 treated with EVAR from January 1997 to November 2007, 24 (1.9%) were aged â„90. Mean age was 91.5 ± 1.5 years (range, 90-95 years), and 83.3% were men. Mean aneurysm size was 6.8 cm (range, 5.2-8.7 cm).ResultsMean procedural blood loss was 490 mL (range, 100-4150 mL), and 20.8% required an intraoperative transfusion. Mean postoperative length of stay was 6.0 days, (median, 4 days; mode, 1 day; range, 1-42 days), with 33.3% of patients discharged on the first postoperative day. Amongst the 24 patients, there were 6 (25.0%) perioperative major adverse events, and 2 patients died, for a perioperative mortality rate of 8.3%. Mean follow-up was 20.5 months (range, 1-49 months). Overall, three patients (12.5%) required a secondary intervention, comprising thrombectomy, angioplasty, and proximal cuff extension. No patients required conversion to open repair. Two patients (8.3%) died of AAA rupture at 507 and 1254 days. Freedom from all-cause mortality was 83.3% at 1 year and 19.3% at 5 years. Freedom from aneurysm-related mortality was 87.5% at 1 year and 73.2% at 5 years. Endoleak occurred in five patients (20.8%), with three type I and two of indeterminate type; of these, two patients with type I endoleak underwent secondary intervention at 153 and 489 days after EVAR, of which one case was successful.ConclusionOur study supports that EVAR in nonagenarians is associated with acceptable procedural success and perioperative morbidity and mortality. The medium-term results suggest that EVAR may be of limited benefit in very carefully selected patients who are aged â„90 years
A Study of the Diverse T Dwarf Population Revealed by WISE
We report the discovery of 87 new T dwarfs uncovered with the Wide-field
Infrared Survey Explorer (WISE) and three brown dwarfs with extremely red
near-infrared colors that exhibit characteristics of both L and T dwarfs. Two
of the new T dwarfs are likely binaries with L7+/-1 primaries and mid-type T
secondaries. In addition, our follow-up program has confirmed 10 previously
identified T dwarfs and four photometrically-selected L and T dwarf candidates
in the literature. This sample, along with the previous WISE discoveries,
triples the number of known brown dwarfs with spectral types later than T5.
Using the WISE All-Sky Source Catalog we present updated color-color and
color-type diagrams for all the WISE-discovered T and Y dwarfs. Near-infrared
spectra of the new discoveries are presented, along with spectral
classifications. To accommodate later T dwarfs we have modified the integrated
flux method of determining spectral indices to instead use the median flux.
Furthermore, a newly defined J-narrow index differentiates the early-type Y
dwarfs from late-type T dwarfs based on the J-band continuum slope. The K/J
indices for this expanded sample show that 32% of late-type T dwarfs have
suppressed K-band flux and are blue relative to the spectral standards, while
only 11% are redder than the standards. Comparison of the Y/J and K/J index to
models suggests diverse atmospheric conditions and supports the possible
re-emergence of clouds after the L/T transition. We also discuss peculiar brown
dwarfs and candidates that were found not to be substellar, including two Young
Stellar Objects and two Active Galactic Nuclei. The coolest WISE-discovered
brown dwarfs are the closest of their type and will remain the only sample of
their kind for many years to come.Comment: Accepted to ApJS on 15 January 2013; 99 pages in preprint format, 30
figures, 12 table
The moral and sentimental work of the clinic: the case of genetic syndromes
This paper reports on the genetics clinic and examines the wider functions it
provides for parents who have a child with learning disabilities that may be
associated with an underlying genetic cause. It derives from an ethnographic
study of one clinical genetics team within a UK clinical genetics service and
their clinical caseload, specifically their cases of genetic syndromes associated
with dysmorphology, a speciality within clinical genetics. Dysmorphology is
the medical study of abnormal forms in the human and is concerned with the
identification and classification of a variety of congenital malformations. Our
analysis of the clinical consultations and subsequent interviews with parents
indicate that obtaining a genetic diagnosis and classification of their childâs
problems was not the sole function of these consultations. In addition, the
clinic provides parents with moral absolution from having âcausedâ their
childâs problems and is an important site for the sentimental and celebratory
focus on the child. Thus, the role of the clinical genetics service is not merely
to assemble a diagnosis from the available information and to provide a
source of expert opinion on the causes of the condition, but to provide
reassurance to parents who might otherwise blame themselves (or be blamed
by others) for their childâs condition. An important aspect of these
consultations was the sentimental work of repairing the child, providing a
sphere in which the development and behaviour of the child is discussed in
favourable terms, and given assurances of ânormalâ parenting and family life,
often in marked contrast to their experience in the wider public world. Thus,
the work of establishing diagnostic categories also allows important moral
and sentimental work to be accomplished within the clinic
Kinscapes, timescapes and genescapes: families living with genetic risk
This article synthesises recent research examining how families live with genetic risk and the processes of genetic decision-making and disclosure among family members who have been or are at risk of transmitting a familial genetic condition. Its aim is to generate substantive theory that can inform our understanding of the interactional processes at work in the distribution of mutual knowledge and awareness of genetic risk in families. The article is structured around three interrelated concepts. Kinscape refers to the constellation of relations and relatedness that are recognised practically; timescape to the multiple temporal frames of social relations and their transformation and genescape to the constellation of knowledge, belief and practice surrounding genetic inheritance. All three concepts are simultaneously natural and cultural. Their intersections create the conditions of kinship and genetics
The Polarizing Impact of Science Literacy and Numeracy on Perceived Climate Change Risks
Seeming public apathy over climate change is often attributed to a deficit in comprehension. The public knows too little science, it is claimed, to understand the evidence or avoid being misled. Widespread limits on technical reasoning aggravate the problem by forcing citizens to use unreliable cognitive heuristics to assess risk. An empirical study found no support for this position. Members of the public with the highest degrees of science literacy and technical reasoning capacity were not the most concerned about climate change. Rather, they were the ones among whom cultural polarization was greatest. This result suggests that public divisions over climate change stem not from the publicâs incomprehension of science but from a distinctive conflict of interest: between the personal interest individuals have in forming beliefs in line with those held by others with whom they share close ties and the collective one they all share in making use of the best available science to promote common welfare
COVID-19 and Prisonersâ Rights
As COVID-19 continues to spread rapidly across the country, the crowded and unsanitary conditions in prisons, jails, juvenile detention, and immigration detention centers leave incarcerated individuals especially vulnerable. This chapter will discuss potential avenues for detained persons and their lawyers seeking to use the legal system to obtain relief, including potential release, during this extraordinary, unprecedented crisis
Enrichment of dynamic chromosomal crosslinks drive phase separation of the nucleolus
Regions of highly repetitive DNA, such as those found in the nucleolus, show a self-organization that is marked by spatial segregation and frequent self-interaction. The mechanisms that underlie the sequestration of these sub-domains are largely unknown. Using a stochastic, bead-spring representation of chromatin in budding yeast, we find enrichment of protein-mediated, dynamic chromosomal cross-links recapitulates the segregation, morphology and self-interaction of the nucleolus. Rates and enrichment of dynamic crosslinking have profound consequences on domain morphology. Our model demonstrates the nucleolus is phase separated from other chromatin in the nucleus and predicts that multiple rDNA loci will form a single nucleolus independent of their location within the genome. Fluorescent labeling of budding yeast nucleoli with CDC14-GFP revealed that a split rDNA locus indeed forms a single nucleolus. We propose that nuclear sub-domains, such as the nucleolus, result from phase separations within the nucleus, which are driven by the enrichment of protein-mediated, dynamic chromosomal crosslinks
Analysis of whole exome sequencing with cardiometabolic traits using family-based linkage and association in the IRAS Family Study
Family-based methods are a potentially powerful tool to identify trait-defining genetic variants in extended families, particularly when used to complement conventional association analysis. We utilized two-point linkage analysis and single variant association analysis to evaluate whole exome sequencing (WES) data from 1,205 Hispanic Americans (78 families) from the Insulin Resistance Atherosclerosis Family Study. WES identified 211,612 variants above the minor allele frequency threshold of â„0.005. These variants were tested for linkage and/or association with 50 cardiometabolic traits after quality control checks. Two-point linkage analysis yielded 10,580,600 LOD scores with 1,148 LOD scores â„3, 183 LOD scores â„4, and 29 LOD scores â„5. The maximal novel LOD score was 5.50 for rs2289043:T\u3eC, in UNC5C with subcutaneous adipose tissue volume. Association analysis identified 13 variants attaining genome-wide significance (pT in APOA5, and triglyceride levels (p=3.67Ă10-10). Overall, there was a 5.2-fold increase in the number of informative variants detected by WES compared to exome chip analysis in this population, nearly 30% of which were novel variants relative to dbSNP build 138. Thus, integration of results from two-point linkage and single-variant association analysis from WES data enabled identification of novel signals potentially contributing to cardiometabolic traits
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