A global crash-course in teaching and learning online: A thematic review of empirical Emergency Remote Teaching (ERT) studies in higher education during Year 1 of COVID-19

The COVID-19 pandemic has impacted education in ways that academic institutions, scholars, administrators, educators, and students will strive to fully comprehend for years to come. The global spread of SARSCoV2 in early 2020 prompted social distancing as the primary countermeasure against contracting and spreading the novel coronavirus, which in turn led academic communities worldwide to suddenly transition to emergency remote teaching (ERT) in order to maintain educational continuity. This review of the literature synthesizes findings from 38 empirical studies set in higher education about ERT in 2020 from all over the world. A thematic analysis of findings produced four major themes: 1) diverse ERT experiences; 2) digital divide and vast educational/socio economic inequalities; 3) commonly-experienced ERT problems, issues, and challenges; and 4) frequently-made adjustments in response to ERT. Findings are indicative of the immediate aftermath of transitions to ERT, and open areas of research for long-term impacts of ERT are discussed

The Expatriate and Transnational Distance Student Phenomenon: A Series of Investigations

The scale and scope of distance education has changed significantly over the last 250 years. Technology, from the early days of correspondence courses to radio, television and satellite broadcasting, has continually increased the scope, scale, and access potential to education. Distance courses and programs, however, were typically serving local, regional, or national communities. The Internet, by contrast, has transformed distance education by enabling access to education by virtually anyone, anywhere in the world. Students are no longer limited or constrained by geography or residency, yet how such potential has been conceptualized, identified, and subsequently researched has been limited by homogenous frames of reference. The homogenization of student conceptualizations and classifications for distance students situated outside of a national context has resulted in both unclear discussions, as well as the omission of differing perspectives. This dissertation investigated the phenomenon of transnational distance education, and particularly the expatriate and transnational distance student perspective from a vantage point in the Republic of Korea across three related studies. The first investigation, an exploratory study, proposed a framework that organized and defined four distinct types of student (national, international, expatriate, transnational) and subsequently collected demographic and program characteristics of expatriate and transnational distance students from 33 survey respondents. The second study utilized a multicase approach to collect data on the experiences of expatriate and transnational students and document their experiences, similarities, and differences by examining eight cases. The third study, a grounded theory approach, explored the motivations and decision-making process of expatriate and transnational students and why/how they choose their education programs with a sample of 10 participants. Though the three samples were not representative of all foreign-residents in Korea, they provide additional perspectives to the distance, transnational, and international education literature, as well as scholarship on university attendance. Key findings from study one suggested that expatriate and transnational students were disproportionately male, and most likely completing distance programs in their home countries. Findings from study two described how, as first-generation adult immigrants in Korea, students were funneled into the same career path by virtue of national/linguistic background which prompted them to seek out further higher education opportunities to become qualified in their fields. Lastly, findings from the third study suggested that the concept of repatriation (i.e., return to their home countries), whether realized or not, played a recurring role in their decisions to pursue higher education, and was similarly related to their reasons for choosing distance programs usually in their home countries. Moreover, these findings suggested an ecosystem as both a push and pull factor where various obstacles (e.g., no background knowledge on university programs, no information available in participants’ L1) to entry in the local educational ecosystem pushed them to choose educational opportunities mostly in their home countries as a path of least resistance to achieving their educational goals

Cost of government services: trends and comparisons for Kentucky and its neighboring states

Federal Reserve District, 8th ; Local government ; Kentucky

Tackling concussion, beyond Hollywood

No abstract available

Genetic interplay with soccer ball heading

Mortality from neurodegenerative disease is high among professional soccer players, potentially associated with repeated head impacts during routine gameplay. New data suggest that the apolipoprotein E ε4 allele might exacerbate the effects of soccer ball heading on cognition. However, genotyping of athletes to determine their dementia risk remains a distant prospect

Inflation From Symmetry Breaking Below the Planck Scale

We investigate general scalar field potentials \hbox{$V\left(\phi\right)$} for inflationary cosmology arising from spontaneous symmetry breaking. We find that potentials which are dominated by terms of order $\phi^m$ with \hbox{$m > 2$} can satisfy observational constraints at an arbitrary symmetry breaking scale. Of particular interest, the spectral index of density fluctuations is shown to be independent of the specific form of the potential, depending only on the order $m$ of the lowest non-vanishing derivative of $V(\phi)$ near its maximum. The results of a model with a broken ${\rm SO(3)}$ symmetry illustrate these features.Comment: Submitted to Phys. Rev. Letters. 7 Pages, REVTeX. No figure

Advanced Networks in Motion Mobile Sensorweb

Advanced mobile networking technology applicable to mobile sensor platforms was developed, deployed and demonstrated. A two-tier sensorweb design was developed. The first tier utilized mobile network technology to provide mobility. The second tier, which sits above the first tier, utilizes 6LowPAN (Internet Protocol version 6 Low Power Wireless Personal Area Networks) sensors. The entire network was IPv6 enabled. Successful mobile sensorweb system field tests took place in late August and early September of 2009. The entire network utilized IPv6 and was monitored and controlled using a remote Web browser via IPv6 technology. This paper describes the mobile networking and 6LowPAN sensorweb design, implementation, deployment and testing as well as wireless systems and network monitoring software developed to support testing and validation

SNTF immunostaining reveals previously undetected axonal pathology in traumatic brain injury

Diffuse axonal injury (DAI) is a common feature of severe traumatic brain injury (TBI) and may also be a predominant pathology in mild TBI or “concussion”. The rapid deformation of white matter at the instant of trauma can lead to mechanical failure and calcium-dependent proteolysis of the axonal cytoskeleton in association with axonal transport interruption. Recently, a proteolytic fragment of alpha-II spectrin, “SNTF”, was detected in serum acutely following mild TBI in patients and was prognostic for poor clinical outcome. However, direct evidence that this fragment is a marker of DAI has yet to be demonstrated in either humans following TBI or in models of mild TBI. Here, we used immunohistochemistry (IHC) to examine for SNTF in brain tissue following both severe and mild TBI. Human severe TBI cases (survival <7d; n = 18) were compared to age-matched controls (n = 16) from the Glasgow TBI archive. We also examined brains from an established model of mild TBI at 6, 48 and 72 h post-injury versus shams. IHC specific for SNTF was compared to that of amyloid precursor protein (APP), the current standard for DAI diagnosis, and other known markers of axonal pathology including non-phosphorylated neurofilament-H (SMI-32), neurofilament-68 (NF-68) and compacted neurofilament-medium (RMO-14) using double and triple immunofluorescent labeling. Supporting its use as a biomarker of DAI, SNTF immunoreactive axons were observed at all time points following both human severe TBI and in the model of mild TBI. Interestingly, SNTF revealed a subpopulation of degenerating axons, undetected by the gold-standard marker of transport interruption, APP. While there was greater axonal co-localization between SNTF and APP after severe TBI in humans, a subset of SNTF positive axons displayed no APP accumulation. Notably, some co-localization was observed between SNTF and the less abundant neurofilament subtype markers. Other SNTF positive axons, however, did not co-localize with any other markers. Similarly, RMO-14 and NF-68 positive axonal pathology existed independent of SNTF and APP. These data demonstrate that multiple pathological axonal phenotypes exist post-TBI and provide insight into a more comprehensive approach to the neuropathological assessment of DAI

Efficacy, safety, and improved tolerability of travoprost BAK-free ophthalmic solution compared with prior prostaglandin therapy

J Charles Henry1, James H Peace2, Jeanette A Stewart3,4, William C Stewart3,41Little Rock Eye Clinic, Little Rock, AR, USA; 2Diabetic Eye Medical Clinic, Inglewood, CA, USA; 3PRN Pharmaceutical Research Network, LLC, Dallas,TX, USA; 4Carolina Eye Institute, University of South Carolina, School of Medicine, Columbia, SC, USAPurpose: To evaluate the efficacy, safety and tolerability of changing to travoprost BAK-free from prior prostaglandin therapy in patients with primary open-angle glaucoma or ocular hypertension.Design: Prospective, multi-center, historical control study.Methods: Patients treated with latanoprost or bimatoprost who needed alternative therapy due to tolerability issues were enrolled. Patients were surveyed using the Ocular Surface Disease Index (OSDI) to evaluate OSD symptoms prior to changing to travoprost BAK-free dosed once every evening. Patients were re-evaluated 3 months later.Results: In 691 patients, travoprost BAK-free demonstrated improved mean OSDI scores compared to either latanoprost or bimatoprost (p < 0.0001). Patients having any baseline OSD symptoms (n = 235) demonstrated significant improvement after switching to travoprost BAK-free (p < 0.0001). In 70.2% of these patients, symptoms were reduced in severity by at least 1 level. After changing medications to travoprost BAK-free, mean intraocular pressure (IOP) was significantly decreased (p < 0.0001). Overall, 72.4% preferred travoprost BAK-free (p < 0.0001, travoprost BAK-free vs prior therapy). Travoprost BAK-free demonstrated less conjunctival hyperemia than either prior therapy (p < 0.0001).Conclusions: Patients previously treated with a BAK-preserved prostaglandin analog who are changed to travoprost BAK-free have clinically and statistically significant improvement in their OSD symptoms, decreased hyperemia, and equal or better IOP control.Keywords: glaucoma, prostaglandin analog, travoprost, latanoprost, bimatoprost, preservative, benzalkonium chloride, ocular surface diseas

From Emergency Remote Teaching (ERT) to Sustained Remote Teaching (SRT): A Comparative Semester Analysis of Exchange Students’ Experiences and Perceptions of Learning Online During Covid-19

The COVID-19 pandemic caused universities worldwide to close campuses, forcing millions of teachers and students to resort to Emergency Remote Teaching (ERT) and learning. Though necessary, the sudden move to remote delivery marked a significant departure from the standards and norms in distance education. In Korea, the pandemic coincided with the start of the 2020 academic year. Though ERT was new and unplanned during the first semester of the year, it became Sustained Remote Teaching (SRT) in the second. Through the lens of performance improvement theory, we sought to determine if students’ experiences and perceptions with learning remotely via SRT would change over time as a result of institutional preparedness and faculty support/experience. In total, 140 (Spring) and 93 (Fall) exchange students rated their perceptions of Teaching and Learning Processes, Student Support, and Course Structure with their ERT/SRT learning experiences via an electronic survey. An independent-samples one-way ANOVA indicated several statistically significant benchmarks, though results are interpreted as minor real world improvement. Implications for ERT/SRT policy and future research in the context of specific student groups are discussed