The Praxis of Disability and Schools in Ohio from 1925-1939

This paper provides a summary of the analysis of school enumeration returns in Ohio from 1925 through 1939, prior to state-wide school consolidation, in 26 counties. Data suggests that a wide range of students with disabilities were accommodated and included in the public-school system. The paper discusses legislation, medical, and clinical definitions of disability for this time period. Results may have had implications on school consolidation in Ohio

Regular Versus Shorter Orientation

This study compared college student characteristics of those who attended regular and shorter orientation sessions at a state university over a period of four years. Data were analyzed using descriptive statistics, and results indicated that significant differences existed between the students who attended the regular orientation and those who attended a shorter orientation. Further analysis using linear and logistic regression indicated that type of orientation session attended did not significantly affect the outcomes of retention, fall and spring grade point average (GPAs), and academic status beyond the effects of student background characteristics. Recommendations focused on college student experiences

Accessibility in Metrô Rio prior to the 2016 Olympic and Paralympic games.

ABSTRACT:The city of Rio de Janeiro, Brazil hosted the 2016 Olympic and Paralympic Games which brought forth an enormous influx of tourists to a large populated city. This study, analyzed accessibility of the Metrô Line 1 of the subway system in preparation for the games. Photo-based research was used to investigate the Metrô Rio services. Findings suggest that the subway system in the city of Rio de Janeiro, is accessible; however, improvement is needed in the areas of communication, through standardization of language used to describe equipment and accommodations, the standardization of signage and equipment, standardization of navigational logic patterns, and predictability of barriers and services for patrons. A tension was also identified between services provided with assistance and services that promote independence for users with disabilities. Results will help transit agencies to consider accessibility features for all patrons.RESUMO:O Rio de Janeiro foi cidade-sede dos Jogos Olímpicos e Paraolímpicos de 2016, evento que gerou um enorme fluxo de turistas em uma cidade bastante populosa. O presente estudo analisou a acessibilidade do Metrô Linha 1 do sistema metrofer­roviário em preparação para os jogos. A investigação utilizou-se do registro fotográ­fico para averiguar os serviços do Metrô Rio. Os resultados sugerem que o sistemade metrô do Rio de Janeiro é acessível; porém, são necessárias melhorias nas áreas de comunicação por meio da padronização da linguagem utilizada para descrever os equipamentos e espaços, da padronização da sinalização e dos equipamentos oferecidos, da uniformização dos modelos de locomoção e do aumento de previsi­bilidade dos obstáculos e dos serviços oferecidos aos usuários. Também foi iden­tificada uma tensão entre os serviços que se apoiam na assistência e serviços que promovem a independência para os usuários portadores de deficiência. Os resulta­dos auxiliarão agências de transporte a considerar características de acessibilidade para todos os usuários

Ultrafine hydrogen storage powders

A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage material, such, for example, LaNi5 and other AB5 type materials and AB5+x materials, where x is from about -2.5 to about +2.5, including x=0, and the melt is gas atomized under conditions of melt temperature and atomizing gas pressure to form generally spherical powder particles. The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen absorption/desorption cycling. A hydrogen storage component, such as an electrode for a battery or electrochemical fuel cell, made from the gas atomized hydrogen storage material is resistant to hydrogen degradation upon hydrogen absorption/desorption that occurs for example, during charging/discharging of a battery. Such hydrogen storage components can be made by consolidating and optionally sintering the gas atomized hydrogen storage powder or alternately by shaping the gas atomized powder and a suitable binder to a desired configuration in a mold or die

Virtual worlds in Australian and New Zealand higher education: remembering the past, understanding the present and imagining the future

3D virtual reality, including the current generation of multi-user virtual worlds, has had a long history of use in education and training, and it experienced a surge of renewed interest with the advent of Second Life in 2003. What followed shortly after were several years marked by considerable hype around the use of virtual worlds for teaching, learning and research in higher education. For the moment, uptake of the technology seems to have plateaued, with academics either maintaining the status quo and continuing to use virtual worlds as they have previously done or choosing to opt out altogether. This paper presents a brief review of the use of virtual worlds in the Australian and New Zealand higher education sector in the past and reports on its use in the sector at the present time, based on input from members of the Australian and New Zealand Virtual Worlds Working Group. It then adopts a forward-looking perspective amid the current climate of uncertainty, musing on future directions and offering suggestions for potential new applications in light of recent technological developments and innovations in the area

How are Australian higher education institutions contributing to change through innovative teaching and learning in virtual worlds?

Over the past decade, teaching and learning in virtual worlds has been at the forefront of many higher education institutions around the world. The DEHub Virtual Worlds Working Group (VWWG) consisting of Australian and New Zealand higher education academics was formed in 2009. These educators are investigating the role that virtual worlds play in the future of education and actively changing the direction of their own teaching practice and curricula. 47 academics reporting on 28 Australian higher education institutions present an overview of how they have changed directions through the effective use of virtual worlds for diverse teaching and learning activities such as business scenarios and virtual excursions, role-play simulations, experimentation and language development. The case studies offer insights into the ways in which institutions are continuing to change directions in their teaching to meet changing demands for innovative teaching, learning and research in virtual worlds. This paper highlights the ways in which the authors are using virtual worlds to create opportunities for rich, immersive and authentic activities that would be difficult or not possible to achieve through more traditional approaches

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

Combined searches for the production of supersymmetric top quark partners in proton-proton collisions at root s=13 TeV

A combination of searches for top squark pair production using proton-proton collision data at a center-of-mass energy of 13 TeV at the CERN LHC, corresponding to an integrated luminosity of 137 fb(-1) collected by the CMS experiment, is presented. Signatures with at least 2 jets and large missing transverse momentum are categorized into events with 0, 1, or 2 leptons. New results for regions of parameter space where the kinematical properties of top squark pair production and top quark pair production are very similar are presented. Depending on themodel, the combined result excludes a top squarkmass up to 1325 GeV for amassless neutralino, and a neutralinomass up to 700 GeV for a top squarkmass of 1150 GeV. Top squarks with masses from 145 to 295 GeV, for neutralino masses from 0 to 100 GeV, with a mass difference between the top squark and the neutralino in a window of 30 GeV around the mass of the top quark, are excluded for the first time with CMS data. The results of theses searches are also interpreted in an alternative signal model of dark matter production via a spin-0 mediator in association with a top quark pair. Upper limits are set on the cross section for mediator particle masses of up to 420 GeV

Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at root s=13 TeV

Peer reviewe

MUSiC : a model-unspecific search for new physics in proton-proton collisions at root s=13TeV

Results of the Model Unspecific Search in CMS (MUSiC), using proton-proton collision data recorded at the LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1), are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.Peer reviewe