1,034 research outputs found

    Laptop Enclosure with Integrated Keyboard Feature Plate

    Get PDF
    Laptop keyboard designs typically include a keyboard module that utilizes a stainless steel feature plate to support the keys and to mount the keyboard module to the laptop. This disclosure describes a laptop enclosure with an integrated keyboard feature plate. Other elements of keyboard assembly such as keyboard keys and membrane are top loaded into the laptop enclosure. A keyboard webbing is laminated to the enclosure to complete the assembly. By eliminating the use of a separate feature plate, thinner and lighter laptop designs are enabled

    Development of mathematical pathways for VET students to articulate to related higher education courses: a focus on engineering

    Get PDF
    Australia needs more qualified professionals in the Science, Technology, Engineering, and Mathematics (STEM) areas. The national focus on widening participation in higher education (HE) includes strengthening pathways from vocational education and training (VET). VET students often lack the mathematics skills necessary to articulate successfully to their chosen university degrees. Current approaches such as bridging and foundation mathematics programs are not tailored or sufficiently contextualised for VET articulants. This project is developing a mathematics pathway designed to improve the readiness of VET engineering diploma graduates for higher education study in engineering degree programs. Arrangements are flexible so that students can complete these pathways either as part of their engineering diploma as a VET student or as part of preparatory study at the diploma level at university. Many VET students are granted credit when entering a HE course in engineering and can transfer directly to second year units which may assume a level of mathematical knowledge by the university. However, in the VET Diploma of Engineering Technical (MEM50212), there is only one core unit in mathematics (MEM30012A) equivalent to year 9 level and there are two mathematics electives, MEM23004A and MEM23007A, which are part of the advanced diploma and often not taught by many TAFE providers due to student demand and staff capabilities. The lack of required mathematics often leaves the student with a large gap in the required knowledge for success in HE. The project has been underway for over a year and significant progress has been made in developing the pathway for engineering. To date, the mathematical knowledge outcomes from the VET courses have been mapped to the requirements of the HE courses at the University of Tasmania, Flinders University and James Cook University. Gaps in mathematical knowledge have been identified. A formal articulation agreement has been established through TasTAFE and the University of Tasmania where current VET students will be able to enroll in the university foundation mathematics units and receive credit towards their VET diploma in engineering. In addition to the foundation units, the students need to do an online component. This consists of a few compulsory topics which are not covered in the foundation units with supporting examples, practice problems, practical application and self-assessed quizzes for each mathematics topic covered in the foundation units, contextualised to engineering. VET students are applied learners and therefore often struggle with the transition to HE. The online component of the pathway is designed to support the student by providing the context to the mathematics they are learning. Another advantage of the pathway is that it exposes the VET students to HE units and the university environment while satisfying the university mathematics entry requirements

    Host-specific differences in the contribution of an extended spectrum β-lactamase (ESBL) IncI1 plasmid to intestinal colonisation by Escherichia coli O104:H4

    Get PDF
    Objectives. To assess stability and contribution of a large extended spectrum β-lactamase (ESBL)-containing IncI1 plasmid to intestinal colonization by Escherichia coli O104:H4 in two different mammalian hosts. Methods. Specific-pathogen-free 3-day old New Zealand White rabbits and conventionally-reared 6-week-old weaned lambs were orally infected with wild-type E. coli O104:H4 or the ESBL-plasmid cured derivative, and the recovery of bacteria in intestinal homogenates and faeces monitored over time. Results. Carriage of the ESBL plasmid had differing impacts on E. coli O104:H4 colonisation of the two experimental hosts. The plasmid cured strain was recovered at significantly higher levels than wild type during late-stage colonization of rabbits, but at lower levels than wildtype in sheep. Regardless of the animal host, the ESBL plasmid was stably maintained in virtually all in vivo passaged bacteria that were examined. Conclusions. These findings suggest that carriage of ESBL plasmids has distinct effects on the host bacterium depending upon the animal species it encounters and demonstrates that, as for E. coli O157:H7, ruminants could represent a potential transmission reservoir.</p

    Development of mathematical pathways for VET students to articulate to related higher education courses

    Get PDF
    Australia needs more qualified professionals in the STEM areas. The national focus on widening participation in higher education (HE) includes strengthening pathways from vocational education and training (VET). VET students often lack the mathematics skills necessary to articulate successfully to their chosen degrees. Current approaches such as bridging and foundation mathematics programs are not tailored or sufficiently contextualised for VET articulants. An Office for Learning and Teaching project focused on developing contextualised mathematics pathways for four key disciplines (education, engineering, business and health science) in order to facilitate the transition from VET courses to higher education and increase student confidence and readiness. This project is led by the University of Tasmania and partners with Flinders University, James Cook University and the University of Notre Dame Australia. In the first year of the project (2013), mathematics pathways were developed for engineering and education and followed by business and health science in 2014. This project has recently concluded and the pathway to engineering has been active for over a year. A formal articulation agreement has been established through TasTAFE and the University of Tasmania where current VET students are able to enroll in university foundation mathematics units and receive credit towards their VET diploma in engineering. In addition to the foundation units, the students are required to do an online component. This consists of a few compulsory topics which are not covered in the foundation units with supporting examples, practice problems, practical application and self-assessed quizzes for each mathematics topic covered in the foundation units, contextualised to engineering. VET students are applied learners and therefore often struggle with the transition to HE. The online component of the pathway has been designed to support the student by providing the context to the mathematics they are learning. Another advantage of the pathway is that it exposes the VET students to HE units and the university environment while satisfying the university mathematics entry requirements. This presentation describes the process of the pathway development and the opportunities for cross sectoral course support and delivery

    Human gut Faecalibacterium prausnitzii deploy a highly efficient conserved system to cross-feed on β-mannan-derived oligosaccharides

    Get PDF
    ACKNOWLEDGMENTS We are grateful for support from The Research Council of Norway (FRIPRO program to P.B.P.: 250479; BIONÆR program to B.W.: 244259), the European Research Commission Starting Grant Fellowship (awarded to P.B.P.; 336355 MicroDE), and the Scottish Government Rural and Environmental Sciences and Analytical Services (RESAS) (for P.L. and S.H.D.). S.L.L.R. generated constructs and performed recombinant protein production and purification and functional characterizations of the binding protein and GHs. L.J.L., S.L., and L.M. expressed, purified, and performed functional characterization of FpCE2 and FpCE17. Growth experiments on mannans and SCFA quantifications were performed by G.L. ITC was performed by Å.K.R., Z.L., and L.S.M. G.V.P. and S.L.L.R. conducted the human metagenomic analysis. S.L.L.R., P.B.P., and B.W. conceived the study and supervised research. The manuscript was written primarily by S.L.L.R. with contributions from P.B.P., S.H.D., G.L, L.M., S.L., G.V.P., E.C.M., L.S.M., B.W., and L.J.L. Figures were prepared by S.L.L.R. We declare that we have no competing interests. Funding Information: We are grateful for support from The Research Council of Norway (FRIPRO program to P.B.P.: 250479; BIONÆR program to B.W.: 244259), the European Research Commission Starting Grant Fellowship (awarded to P.B.P.; 336355 MicroDE), and the Scottish Government Rural and Environmental Sciences and Analytical Services (RESAS) (for P.L. and S.H.D.).Peer reviewedPublisher PD

    2-point statistics covariance with fewer mocks

    Full text link
    We present an approach for accurate estimation of the covariance of 2-point correlation functions that requires fewer mocks than the standard mock-based covariance. This can be achieved by dividing a set of mocks into jackknife regions and fitting the correction term first introduced in Mohammad & Percival (2022), such that the mean of the jackknife covariances corresponds to the one from the mocks. This extends the model beyond the shot-noise limited regime, allowing it to be used for denser samples of galaxies. We test the performance of our fitted jackknife approach, both in terms of accuracy and precision, using lognormal mocks with varying densities and approximate EZmocks mimicking the DESI LRG and ELG samples in the redshift range of z = [0.8, 1.2]. We find that the Mohammad-Percival correction produces a bias in the 2-point correlation function covariance matrix that grows with number density and that our fitted jackknife approach does not. We also study the effect of the covariance on the uncertainty of cosmological parameters by performing a full-shape analysis. We find that our fitted jackknife approach based on 25 mocks is able to recover unbiased and as precise cosmological parameters as the ones obtained from a covariance matrix based on 1000 or 1500 mocks, while the Mohammad-Percival correction produces uncertainties that are twice as large. The number of mocks required to obtain an accurate estimation of the covariance for 2-point correlation function is therefore reduced by a factor of 40-60.Comment: 13 pages, 14 figures, submitted to MNRA

    Seasonal variation in the relative dominance of herbivore guilds in an African savanna

    Get PDF
    African savannas are highly seasonal with a diverse array of both mammalian and invertebrate herbivores, yet herbivory studies have focused almost exclusively on mammals. We conducted a 2-yr exclosure experiment in South Africa's Kruger National Park to measure the relative impact of these two groups of herbivores on grass removal at both highly productive patches (termite mounds) and in the less productive savanna matrix. Invertebrate and mammalian herbivory was greater on termite mounds, but the relative importance of each group changed over time. Mammalian offtake was higher than invertebrates in the dry season, but can be eclipsed by invertebrates during the wet season when this group is more active. Our results demonstrate that invertebrates play a substantial role in savanna herbivory and should not be disregarded in attempts to understand the impacts of herbivory on ecosystems

    Global timber investments, 2005 to 2017

    Get PDF
    We estimated timber investment returns for 22 countries and 54 species/management regimes in 2017, for a range of global timber plantation species and countries at the stand level, using capital budgeting criteria, without land costs, at a real discount rate of 8%. Returns were estimated for the principal plantation countries in the Americas-Brazil, Argentina, Uruguay, Chile, Colombia, Venezuela, Paraguay, Mexico, and the United States-as well as New Zealand, Australia, South Africa, China, Vietnam, Laos, Spain, Finland, Poland, Scotland, and France. South American plantation growth rates and their concomitant returns were generally greater, at more than 12% Internal Rates of Return (IRRs), as were those in China, Vietnam, and Laos. These IRRs were followed by those for plantations in southern hemisphere countries of Australia and New Zealand and in Mexico, with IRRs around 8%. Temperate forest plantations in the U.S. and Europe returned less, from 4% to 8%, but those countries have less financial risk, better timber markets, and more infrastructure. Returns to most planted species in all countries except Asia have decreased from 2005 to 2017. If land costs were included in calculating the overall timberland investment returns, the IRRs would decrease from 3 percentage points less for loblolly pine in the U.S. South to 8 percentage points less for eucalypts in Brazil.Peer reviewe
    corecore