After the publication of "Direct formation of hard-magnetic tetrataenite in bulk alloy castings" Ivanov et al., Advanced Science 10 (2022) 2204315, the authors identified a potential misinterpretation of the experimental data. Further work confirms that the original conclusions cannot be supported, and accordingly the paper is retracted.
View Article and Find Full Text PDFJ Bodyw Mov Ther
October 2024
Clinical Scenario: Following intense physical training, it is common for athletes to develop muscle soreness, muscle tightness and a sense of fatigue. Minimizing the time spent in this state is advantageous to limit time off from sport, potential injury and lack of mental focus.
Clinical Question: Does dry needling aid in post-training recovery in athletes?
Summary Of Key Findings: A search was performed for articles exploring the effect of dry needling on exercise/training recovery in athletes.
We present the first open-access, island-wide isotopic database (IsoMad) for modern biologically relevant materials collected on Madagascar within the past 150 years from both terrestrial and nearshore marine environments. Isotopic research on the island has increasingly helped with biological studies of endemic organisms, including evaluating foraging niches and investigating factors that affect the spatial distribution and abundance of species. The IsoMad database should facilitate future work by making it easy for researchers to access existing data (even for those who are relatively unfamiliar with the literature) and identify both research gaps and opportunities for using various isotope systems to answer research questions.
View Article and Find Full Text PDFWildlife that inhabit urban landscapes face the dual challenge of negotiating their positions in their group while navigating obstacles of anthropogenically modified landscapes. The dynamics of urban environments can result in novel injuries and mortalities for these animals. However, these negative impacts can be mitigated through planning, and onsite veterinary care like that provided by the Ubud Monkey Forest in Bali, Indonesia.
View Article and Find Full Text PDFFew studies have addressed the nutritional ecology of galagos. Observations of galagos in the wild reveal that they rely on fruits and invertebrates to varying degrees depending on their availability. We conducted a 6-week comparative dietary analysis of a colony of captive-housed northern greater galagos (Otolemur garnettii), which included five females and six males with known life histories.
View Article and Find Full Text PDFACS Appl Electron Mater
September 2022
Skyrmion-based devices have been proposed as a promising solution for low-energy data storage. These devices include racetrack or logic structures and require skyrmions to be confined in regions with dimensions comparable to the size of a single skyrmion. Here we examine skyrmions in FeGe device shapes using Lorentz transmission electron microscopy to reveal the consequences of skyrmion confinement in a device-like structure.
View Article and Find Full Text PDFObjectives: We compared the physical activity of nine students participating in an anthropological field school to their activity expenditures in traditional classrooms. We predicted that the students would exhibit higher physical activity during the field school due to the substantial physical requirements associated with the program compared to traditional classroom environments which are frequently more sedentary.
Methods: Participants (n = 9) wore wrist accelerometers for ~23 h each day for 6 days during an anthropological field school and also in a traditional classroom environment.
Primatologists use ecological models for understanding nonhuman primate (NHP) behavior and biology. Yet few studies have focused on the impacts of naturally occurring and anthropogenically derived toxicants in NHP habitats. For humans and NHPs, toxic levels of heavy metals frequently result in poor health outcomes including improper neurological development, immune system depression, and endocrine disruption.
View Article and Find Full Text PDFJ Med Imaging Radiat Sci
September 2022
Introduction: The use of Patient-Reported Outcomes (PROs) is an important part of care for patients receiving radiation therapy. Established processes for patients to complete symptom screening using PROs were disrupted by the COVID-19 pandemic. This study reports the implementation of a Radiation Therapist led "champion" model to support the use of PROs during the COVID-19 pandemic.
View Article and Find Full Text PDFThe discovery of two-dimensional magnets has initiated a new field of research, exploring both fundamental low-dimensional magnetism, and prospective spintronic applications. Recently, observations of magnetic skyrmions in the 2D ferromagnet FeGeTe (FGT) have been reported, introducing further application possibilities. However, controlling the exhibited magnetic state requires systematic knowledge of the history-dependence of the spin textures, which remains largely unexplored in 2D magnets.
View Article and Find Full Text PDFBackground: The number of masters females that choose long-distance running as a form of exercise is growing exponentially. As clinicians working with these athletes, it is important to understand their training habits and how these habits relate to running related injuries (RRI).
Purpose: The primary aim of this study was to identify the training behaviors and cross training engagement in masters female runners.
Hamstring strain injury (HSI) may result in considerable impairment, activity limitation, and participation restriction, including time lost from competitive sports. This CPG includes sports-related overloading and overstretching injuries to myofascial or musculotendinous structures in any combination of the 3 hamstring muscles (the semitendinosus, semimembranosus, and biceps femoris). .
View Article and Find Full Text PDFAs the numbers of COVID-19 cases grew globally, the severe shortages of health care respiratory protective equipment impacted the ability of water resource recovery facilities (WRRFs) to acquire N95 masks for worker protection. While the Occupational Safety and Health Administration (OSHA) encourages WRRFs to conduct job safety assessments to mitigate risks from bioaerosols, it does not provide clear guidance on respiratory protection requirements, leaving the use of N95 masks across the industry non-standardized and difficult to justify. Strategies need to be developed to cope with shortages during pandemics, and these should take into consideration a WRRF's size and disinfection equipment available.
View Article and Find Full Text PDFIron oxide nanorings have great promise for biomedical applications because of their magnetic vortex state, which endows them with a low remanent magnetization while retaining a large saturation magnetization. Here we use micromagnetic simulations to predict the exact shapes that can sustain magnetic vortices, using a toroidal model geometry with variable diameter, ring thickness, and ring eccentricity. Our model phase diagram is then compared with simulations of experimental geometries obtained by electron tomography.
View Article and Find Full Text PDFSwift, MC, Townsend, R, Edwards, D, and Loudon, J. Testing to identify submaximal effort: Lifting to a perceived 50% effort vs. an assigned submaximal load.
View Article and Find Full Text PDFMagnetic skyrmions are topologically nontrivial particles with a potential application as information elements in future spintronic device architectures. While they are commonly portrayed as two dimensional objects, in reality magnetic skyrmions are thought to exist as elongated, tube-like objects extending through the thickness of the host material. The study of this skyrmion tube state (SkT) is vital for furthering the understanding of skyrmion formation and dynamics for future applications.
View Article and Find Full Text PDFPurpose: Palliative radiation therapy (PRT) has an essential role in cancer symptom control but is underutilized in Ontario. This initiative aimed to implement an educational outreach intervention to improve knowledge of and access to PRT among interprofessional palliative health care teams across an Ontario Local Health Integration Network.
Methods And Materials: A needs assessment was completed from June to September 2018 with interprofessional palliative health care teams.
Introduction: Replacement of a sole computed tomography (CT) simulator at a Regional Cancer Centre risks interruption of patient access to radiation therapy clinical services. This study reports a collaboration model between two cancer centres to maintain patient access to radiation therapy during the replacement period.
Methods: Representatives from each cancer centre collaborated to plan and facilitate offsite CT simulation.
J Med Imaging Radiat Sci
June 2019
Radiation therapy projects are necessary to improve organizational performance, implement new technology, and integrate evidence-based practices into the clinical environment. Although large-scale projects may have dedicated resources, relatively smaller scale projects may instead redirect resources from operational activities. This article explores how to facilitate continuous improvement by applying project management principles to health care projects at the level of the clinical team or department.
View Article and Find Full Text PDFPure magnetite experiences a first-order phase transition (the Verwey transition) near 120-125 K wherein the mineral's symmetry changes from cubic to monoclinic. This transformation results in the formation of fine-scale crystallographic twins and is accompanied by a profound change in magnetic properties. The Verwey transition is critical to a variety of applications in environmental magnetism and paleomagnetism because its expression is diagnostic for the presence of stoichiometric (or nearly stoichiometric) magnetite and cycling through the Verwey transition tends to remove the majority of multidomain magnetic remanence.
View Article and Find Full Text PDFThe intense research effort investigating magnetic skyrmions and their applications for spintronics has yielded reports of more exotic objects including the biskyrmion, which consists of a bound pair of counter-rotating vortices of magnetization. Biskyrmions have been identified only from transmission electron microscopy images and have not been observed by other techniques, nor seen in simulations carried out under realistic conditions. Here, quantitative Lorentz transmission electron microscopy, X-ray holography, and micromagnetic simulations are combined to search for biskyrmions in MnNiGa, a material in which they have been reported.
View Article and Find Full Text PDFPurpose: Peer review of a proposed treatment plan is increasingly recognized as an important quality activity in radiation medicine. Although peer review has been emphasized in the curative setting, applying peer review for treatment plans that have palliative intent is receiving increased attention. This study reports peer review outcomes for a regional cancer center that applied routine interprofessional peer review as a standard practice for palliative radiotherapy.
View Article and Find Full Text PDFJ Sport Rehabil
February 2020
Purpose/background: Various methods are available for assessment of static and dynamic postural stability. The primary purpose of this study was to investigate the relationship between dynamic postural stability as measured by the Star Excursion Balance Test (SEBT) and static postural sway assessment as measured by the TechnoBody™ Pro-Kin in female soccer players. A secondary purpose was to determine side-to-side symmetry in this cohort.
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