Detection of spin torque magnetization dynamics through low frequency noise

We present a comparative study of high frequency dynamics and low frequency noise in elliptical magnetic tunnel junctions with lateral dimensions under 100 nm presenting current-switching phenomena. The analysis of the high frequency oscillation modes with respect to the current reveals the onset of a steady-state precession regime for negative bias currents above $J=10^7 A/cm^2$, when the magnetic field is applied along the easy axis of magnetization. By the study of low frequency noise for the same samples, we demonstrate the direct link between changes in the oscillation modes with the applied current and the normalised low frequency (1/f) noise as a function of the bias current. These findings prove that low frequency noise studies could be a simple and powerful technique to investigate spin-torque based magnetization dynamics

Analyzing The Impact Of The 2012 Ford Focus Target Hunt: Can Student Managed Projects Accomplish Both Academic And Corporate Objectives?

Student-managed business projects offer students the opportunity to garner valuable real world experience while businesses can fulfill corporate responsibilities utilizing relatively inexpensive manpower. This paper describes an event marketing/social media marketing project completed in conjunction with Jackson-Dawson Communications, representing the Ford Motor Company, and a Midwestern University chapter of the American Marketing Association. Through the successful implementation of the AIDA-IMC promotion model, a committed AMA Chapter, and a number of very cooperative business partnerships, a host of corporate and academic objectives were accomplished while participants gained valuable insight into event marketing principles

Side Effects and Interactions of the Xanthine Oxidase Inhibitor Febuxostat

The paper addresses the safety of febuxostat and summarizes reports on side effects and interactions of febuxostat published by the cut-off date (last day of literature search) of 20 March 2018. Publications on side effects and the interactions of febuxostat were considered. Information concerning the occurrence of side effects and interactions in association with the treatment with febuxostat was collected and summarized in the review. The incidence of severe side effects was much less frequent than mild side effects (1.2-3.8% to 20.1-38.7%). The rate and range of febuxostat side effects are low at doses of up to 120 mg and only increase with a daily dose of over 120 mg. The publications reveal no age-dependent increase in side effects for febuxostat. In patients with impaired renal function, no increase in adverse events is described with a dose of up to 120 mg of febuxostat per day. Patients with impaired liver function had no elevated risk for severe side effects. A known allopurinol intolerance increases the risk of skin reactions during treatment with febuxostat by a factor of 3.6. No correlation between treatment with febuxostat and agranulocytosis has been confirmed. Possible interactions with very few medications (principally azathioprine) are known for febuxostat. Febuxostat is well tolerated and a modern and safe alternative to allopurinol therapy

The Private Rented Sectors in the North and South of Ireland: A Case Study in Convergence Analysis

The theme of this paper centres on the convergence and divergence of housing policy between two regimes inhabiting the same geographical space on the island of Ireland, as reflected in the development of the private rented sector (PRS) in both jurisdictions. Using a historical comparative analysis of key indicators, this paper aims not just to present an accurate picture of the state of policy towards the sector in both jurisdictions today, but to place this analysis within a framework which looks at the backdrop of overall housing systems. The paper postulates that while Northern Ireland and the South of Ireland are reflective of the Anglo Saxon tradition in housing, major historical differences in their pathways have brought clearly identifiable policy outcomes indicative of their differing status in comparative welfare analysis. While both jurisdictions have diverged significantly during the course of the twentieth century in the profile of policy and housing tenure mix, showing examples of path dependency at work, there is clear evidence of more recent convergence. More recent changes in housing policy in both jurisdictions away from direct social housing provision and the changing role of the private rented sector are also examined and a convergence theory is proposed.  

Two primate-specific small non-protein-coding RNAs in transgenic mice: neuronal expression, subcellular localization and binding partners

In a rare occasion a single chromosomal locus was targeted twice by independent Alu-related retroposon insertions, and in both cases supported neuronal expression of the respective inserted genes encoding small non-protein coding RNAs (npcRNAs): BC200 RNA in anthropoid primates and G22 RNA in the Lorisoidea branch of prosimians. To avoid primate experimentation, we generated transgenic mice to study neuronal expression and protein binding partners for BC200 and G22 npcRNAs. The BC200 gene, with sufficient upstream flanking sequences, is expressed in transgenic mouse brain areas comparable to those in human brain, and G22 gene, with upstream flanks, has a similar expression pattern. However, when all upstream regions of the G22 gene were removed, expression was completely abolished, despite the presence of intact internal RNA polymerase III promoter elements. Transgenic BC200 RNA is transported into neuronal dendrites as it is in human brain. G22 RNA, almost twice as large as BC200 RNA, has a similar subcellular localization. Both transgenically expressed npcRNAs formed RNP complexes with poly(A) binding protein and the heterodimer SRP9/14, as does BC200 RNA in human. These observations strongly support the possibility that the independently exapted npcRNAs have similar functions, perhaps in translational regulation of dendritic protein biosynthesis in neurons of the respective primates

Editorial: Social Worlds, Arenas, and Situational Analyses: Theoretical Debates and Experiences From Research Practice

In diesem Artikel führen wir in die Schwerpunktausgabe zum Thema "Soziale Welten, Arenen und Situationsanalysen" ein. Wir geben hierzu einen kurzen Überblick zur Situationsanalyse und der Theorie sozialer Welten und Arenen. Indem wir Gemeinsamkeiten und Besonderheiten der einzelnen Artikel aufgreifen und entlang dieser das Heft in vier Themenbereiche einteilen, zeigen wir die Potenziale der Situationsanalyse und der Theorie sozialer Welten und Arenen.In this article, we introduce our special issue on the topic of "Social Worlds, Arenas, and Situational Analyses." We start by giving short introductions of situational analysis and of social worlds/arenas theory. By addressing both the commonalities between the individual articles as well as their distinctive features in terms of four thematic areas, we demonstrate the potential of situational analysis and of social worlds/arenas theory

Post-Covid-19 Syndrome: Improvements in Health-Related Quality of Life Following Psychology-Led Interdisciplinary Virtual Rehabilitation.

Coronavirus disease 2019 (COVID-19) is increasingly recognized as having significant long-term impact on physical and mental health. The Primary Care Wellbeing Service (PCWBS) in Bradford District Care NHS Foundation Trust (BDCFT) is a psychology-led specialist interdisciplinary team of health professionals specializing in persistent physical symptoms (PPS) and Chronic Fatigue Syndrome (CFS)/Myalgic Encephalomyelitis (ME) with an emphasis on holistic integrated care. The PCWBS quickly recognized the risk of the long-term effects of COVID-19, particularly for social, health and care staff, and developed a 7-week virtual rehabilitation course which was piloted in October 2020. The “Recovering from COVID” course takes a whole system, biopsychosocial approach to understanding COVID-19 and post-viral fatigue (PVF) and is delivered by an interdisciplinary team consisting of a clinical psychologist, physiotherapist, occupational therapist, dietitian, speech and language therapist, assistant psychologist, and a personal support navigator with support from a team administrator. The course focuses on understanding PVF, sleep optimization, nutrition, swallowing, activity management, energy conservation, stress management, breathing optimization, managing setbacks, and signposting to appropriate resources and services. Since the pilot, PCWBS has delivered 7 courses to support over 200 people suffering from post-COVID-19 syndrome. One hundred and forty-nine individuals that enrolled on the “Recovering from COVID” course completed the EQ-5D-5L to assess Health-related quality of life (HRQoL) across 5 dimensions, including problems with mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Subsequently, 76 individuals completed these measures at the end of the rehabilitation course showing that patient ratings were significantly improved. In response to the NIHR recommendation for rapid evaluation of different service models for supporting people with post-COVID-19 syndrome, this data offers hope that rehabilitation is effective in reversing some of the problems faced by people living with the long-term effects of COVID-19

Retroposed Elements as Archives for the Evolutionary History of Placental Mammals

Reconstruction of the placental mammalian (eutherian) evolutionary tree has undergone diverse revisions, and numerous aspects remain hotly debated. Initial hierarchical divisions based on morphology contained many misgroupings due to features that evolved independently by similar selection processes. Molecular analyses corrected many of these misgroupings and the superordinal hierarchy of placental mammals was recently assembled into four clades. However, long or rapid evolutionary periods, as well as directional mutation pressure, can produce molecular homoplasies, similar characteristics lacking common ancestors. Retroposed elements, by contrast, integrate randomly into genomes with negligible probabilities of the same element integrating independently into orthologous positions in different species. Thus, presence/absence analyses of these elements are a superior strategy for molecular systematics. By computationally scanning more than 160,000 chromosomal loci and judiciously selecting from only phylogenetically informative retroposons for experimental high-throughput PCR applications, we recovered 28 clear, independent monophyly markers that conclusively verify the earliest divergences in placental mammalian evolution. Using tests that take into account ancestral polymorphisms, multiple long interspersed elements and long terminal repeat element insertions provide highly significant evidence for the monophyletic clades Boreotheria (synonymous with Boreoeutheria), Supraprimates (synonymous with Euarchontoglires), and Laurasiatheria. More importantly, two retropositions provide new support for a prior scenario of early mammalian evolution that places the basal placental divergence between Xenarthra and Epitheria, the latter comprising all remaining placentals. Due to its virtually homoplasy-free nature, the analysis of retroposon presence/absence patterns avoids the pitfalls of other molecular methodologies and provides a rapid, unequivocal means for revealing the evolutionary history of organisms

SDHA gain-of-function engages inflammatory mitochondrial retrograde signaling via KEAP1-Nrf2.

Whether screening the metabolic activity of immune cells facilitates discovery of molecular pathology remains unknown. Here we prospectively screened the extracellular acidification rate as a measure of glycolysis and the oxygen consumption rate as a measure of mitochondrial respiration in B cells from patients with primary antibody deficiency. The highest oxygen consumption rate values were detected in three study participants with persistent polyclonal B cell lymphocytosis (PPBL). Exome sequencing identified germline mutations in SDHA, which encodes succinate dehydrogenase subunit A, in all three patients with PPBL. SDHA gain-of-function led to an accumulation of fumarate in PPBL B cells, which engaged the KEAP1-Nrf2 system to drive the transcription of genes encoding inflammatory cytokines. In a single patient trial, blocking the activity of the cytokine interleukin-6 in vivo prevented systemic inflammation and ameliorated clinical disease. Overall, our study has identified pathological mitochondrial retrograde signaling as a disease modifier in primary antibody deficiency

Effects of antiplatelet therapy on stroke risk by brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases: subgroup analyses of the RESTART randomised, open-label trial

Background Findings from the RESTART trial suggest that starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. Brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases (such as cerebral microbleeds) are associated with greater risks of recurrent intracerebral haemorrhage. We did subgroup analyses of the RESTART trial to explore whether these brain imaging features modify the effects of antiplatelet therapy