2,564 research outputs found
Nematodes of rodents in the United States with notes on nematode parasites of rodents in Kansas
Call number: LD2668 .R4 1965 O5
The Need for Professionally Oriented ESL Instruction in the United States
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90262/1/3586694.pd
An Experiential Introduction to Aerospace Engineering
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77054/1/AIAA-2007-296-801.pd
Policies of financing livestock programs by commercial banks in Kansas
Call number: LD2668 .R4 1964 O5
Point-driven understanding in engineering lecture comprehension
Nonnative speakers have long been known to have trouble understanding academic lectures. ESP researchers and teachers agree that the problem lies mainly at the discourse level, not at the sentence level; accordingly, a body of discourse-oriented teaching materials for lecture comprehension is now on the market. Though a step in the right direction, these materials fail to do justice to the rhetorical, strategic nature of academic lectures. As our study shows, students may understand all the words of a lecture (including lexical connectives and other discourse markers) and yet fail to understand the lecturer's main points or logical argument.Our study was an exploratory one. Fourteen NNS graduate and undergraduate students watched an authentic 16-minute videotaped lecture on a topic in mechanical engineering and then were asked to provide immediate-recall summaries, which were then analyzed in consultation with the lecturer. Although the lecture was clerly structured around several main points, most of the students failed to grasp these points. These results are discussed in terms of listening strategies: the successful students used a `point-driven' strategy while the unsuccessful ones used an `information-driven' strategy. We conclude that students should be taught how to listen to lectures in a more rhetorical, strategic way. More generally, if we are to teach students to understand and communicate more effectively, we should help them see how the organization of their discourse fits into the larger goals, agendas, and contexts in their fields.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/28773/1/0000605.pd
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CRISPRi-based radiation modifier screen identifies long non-coding RNA therapeutic targets in glioma.
BackgroundLong non-coding RNAs (lncRNAs) exhibit highly cell type-specific expression and function, making this class of transcript attractive for targeted cancer therapy. However, the vast majority of lncRNAs have not been tested as potential therapeutic targets, particularly in the context of currently used cancer treatments. Malignant glioma is rapidly fatal, and ionizing radiation is part of the current standard-of-care used to slow tumor growth in both adult and pediatric patients.ResultsWe use CRISPR interference (CRISPRi) to screen 5689 lncRNA loci in human glioblastoma (GBM) cells, identifying 467 hits that modify cell growth in the presence of clinically relevant doses of fractionated radiation. Thirty-three of these lncRNA hits sensitize cells to radiation, and based on their expression in adult and pediatric gliomas, nine of these hits are prioritized as lncRNA Glioma Radiation Sensitizers (lncGRS). Knockdown of lncGRS-1, a primate-conserved, nuclear-enriched lncRNA, inhibits the growth and proliferation of primary adult and pediatric glioma cells, but not the viability of normal brain cells. Using human brain organoids comprised of mature neural cell types as a three-dimensional tissue substrate to model the invasive growth of glioma, we find that antisense oligonucleotides targeting lncGRS-1 selectively decrease tumor growth and sensitize glioma cells to radiation therapy.ConclusionsThese studies identify lncGRS-1 as a glioma-specific therapeutic target and establish a generalizable approach to rapidly identify novel therapeutic targets in the vast non-coding genome to enhance radiation therapy
A framework for mathematics curricula in engineering education: a report of the mathematics working group.
This document adapts the competence concept to the mathematical education of engineers and
explains and illustrates it by giving examples. It also provides information for specifying the extent to
which a competency should be acquired. It does not prescribe a particular level of progress for
competence acquisition in engineering education. There are many different engineering branches
and many different job profiles with various needs for mathematical competencies; consequently it is
not appropriate to specify a fixed profile. The competence framework serves as an analytical
framework for thinking about the current state in one’s own institution and also as a design
framework for specifying the intended profile. A sketch of an example profile for a practice-oriented
study course in mechanical engineering is given in the document. This document retains the list of
content-related learning outcomes (slightly modified) that formed the ‘kernel’ of the previous
curriculum document. These are still important because lecturers teaching application subjects want
to be sure that students have at least an ‘initial familiarity’ with certain mathematical concepts and
procedures which they need in their application modelling.
In order to offer helpful orientation for designing teaching processes, teaching and learning
environments and approaches are outlined which help students to obtain the competencies to an
adequate degree. It is clear that such competencies cannot be obtained by simply listening to lectures,
so adequate forms of active involvement of students need to be included. Moreover, in a
competence-based approach the mathematical education must be integrated in the surrounding
engineering study course to really achieve the ability to use mathematics in engineering contexts.
The document presents several forms of how this integration can be realized. This integration is
essential to the development of competencies and will require close co-operation between mathematics
academics and their engineering counterparts. Finally, since assessment procedures determine
to a great extent the behaviour of students, it is extremely important to address competency
acquisition in assessment schemes. Ideas for doing this are also outlined in the document.
The main purpose of this document is to provide orientation for those who set up concrete
mathematics curricula for their specific engineering programme, and for lecturers who think about
learning and assessment arrangements for achieving the intended level of competence acquisition. It
also serves as a framework for the group’s future work and discussions
Evidence Supporting a Zoonotic Origin of Human Coronavirus Strain NL63
The relationship between bats and coronaviruses (CoVs) has received considerable attention since the severe acute respiratory syndrome (SARS)-like CoV was identified in the Chinese horseshoe bat (Rhinolophidae) in 2005. Since then, several bats throughout the world have been shown to shed CoV sequences, and presumably CoVs, in the feces; however, no bat CoVs have been isolated from nature. Moreover, there are very few bat cell lines or reagents available for investigating CoV replication in bat cells or for isolating bat CoVs adapted to specific bat species. Here, we show by molecular clock analysis that alphacoronavirus (α-CoV) sequences derived from the North American tricolored bat (Perimyotis subflavus) are predicted to share common ancestry with human CoV (HCoV)-NL63, with the most recent common ancestor between these viruses occurring approximately 563 to 822 years ago. Further, we developed immortalized bat cell lines from the lungs of this bat species to determine if these cells were capable of supporting infection with HCoVs. While SARS-CoV, mouse-adapted SARS-CoV (MA15), and chimeric SARS-CoVs bearing the spike genes of early human strains replicated inefficiently, HCoV-NL63 replicated for multiple passages in the immortalized lung cells from this bat species. These observations support the hypothesis that human CoVs are capable of establishing zoonotic-reverse zoonotic transmission cycles that may allow some CoVs to readily circulate and exchange genetic material between strains found in bats and other mammals, including humans
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