773 research outputs found
Data Curation Workshop: Tips and Tools for Today
The current state of research data is like a disorganized photo collection: a mix of formats scattered across different media without a lot of authority control. That is changing as the need to make data available to researchers across the world is becoming recognized. Researchers know that their data needs to be maintained and made accessible, but often they do not have the time or the inclination to get involved in all of the details. This provides an excellent opportunity for librarians. Data curation is the process of preparing data to be made available in a repository with the goal of making it FAIR: Findable, Accessible, Interoperable, and Reusable. This workshop walks attendees through the steps in the process and gives them hands-on experience in data curation activities
Using Qualitative Methods to Supplement Quantitative Research: A Case Study in Evaluating Student Usage of Facilities
Quantitative research is an important tool in understanding library users; quantifiable data is objective and can be processed and analyzed in ways that bring about new insights. Unfortunately, it is better at telling us where and when than it is at telling us the whys. Our library, the Business, Engineering, Science, and Technology library at Miami University, did a headcount study to see how many people were using which rooms at what times of the day and night. There were many things we learned from that data, but in order to flesh it out and make it more of a three-dimensional picture of our users we decided to use methods from ethnography. We ran a survey and then interviewed several of the survey respondents. The result was a âthick descriptionâ that allowed us to better understand the motivations behind some of the behavior seen in the quantitative stud
Leave the Screen: The Influence of Everyday Behaviors on Self-reported Interoception.
The influence of physical activity on interoception is apparent, however little is known about within-person variability following physical activity and sedentary behavior in daily life. To test this, 70 healthy adults (Mage 21.67±2.50) wore thigh-mounted accelerometers for 7-days, with self-reported interoception recorded on movement-triggered smartphones. Participants additionally reported the predominant activity type performed across the last 15minutes. Investigating this timeframe, multi-level analyses revealed that each one-unit increase in physical activity was associated with an increase in self-reported interoception (B = 0.0025, p =.013), whereas contrastingly, each one-minute increase in sedentary behavior was associated with a decrease (B = -0.06. p =.009). Investigating the influence of different activity types in comparison to screen time behavior, both partaking in exercise (B = 4.48, p <.001) and daily-life physical activity (B = 1.21, p <.001) were associated with an increase in self-reported interoception. Regarding other behavior categories, non-screen time behavior both with (B = 1.13, p <.001) and without (B = 0.67, p =.004) social interaction were also associated with an increase in self-reported interoception compared to screen-time behavior. Extending from previous laboratory-based studies, these findings indicate that physical activity influences interoceptive processes in real-life, further supplemented by the novel and contrasting findings regarding sedentary behavior. Furthermore, associations with activity type reveal important mechanistic information, highlighting the importance of reducing screen-time behavior to preserve and support interoceptive perceptions. Findings can be used to inform health recommendations for reducing screen-time behavior and guiding evidence-based physical activity interventions to promote interoceptive processes
Spring Tire
The spring tire is made from helical springs, requires no air or rubber, and consumes nearly zero energy. The tire design provides greater traction in sandy and/or rocky soil, can operate in microgravity and under harsh conditions (vastly varying temperatures), and is non-pneumatic. Like any tire, the spring tire is approximately a toroidal-shaped object intended to be mounted on a transportation wheel. Its basic function is also similar to a traditional tire, in that the spring tire contours to the surface on which it is driven to facilitate traction, and to reduce the transmission of vibration to the vehicle. The essential difference between other tires and the spring tire is the use of helical springs to support and/or distribute load. They are coiled wires that deform elastically under load with little energy loss
Acute physical-activity related increases in interoceptive ability are not enhanced with simultaneous interoceptive attention.
Interoception, the sense of the internal body, is proposed to support self-regulation, and consequently influence mental health. Researchers have therefore shown interest in improving the ability to accurately monitor internal signals (i.e., interoceptive accuracy, IAcc). Research suggests that cardiac IAcc is modifiable by both manipulations of interoceptive attention (guided attention towards the internal body), and interoceptive exposure (strategically inducing somatic signals e.g., via physical activity). Whilst successful in isolation, it is unclear whether a combined approach (i.e., directing attention towards the internal body when signals are more salient) could elicit greater benefits. In a 2 Ă 2 within-subject design, 48 healthy adults (Mageâ=â25.98â±â4.73 years, 50% female) completed four 20-min conditions varying in both attentional focus (interoceptive vs exteroceptive) and physical activity (active vs rest), with cardiac IAcc measured immediately after. Results revealed a main effect for physical activity (pâ<â0.001), however, there was no effect for attentional focus (pâ=â0.397), and no interaction effect (pâ=â0.797). Differential analyses showed that a higher sporting background increased sensitivity to physical activity-related increases in cardiac IAcc (pâ=â0.031). Findings indicate that (irrespective of attentional focus) moderate-vigorous physical activity-based interventions have the potential to increase cardiac IAcc, with certain individuals potentially benefiting more
Embodied learning in the classroom: Effects on primary school childrenâs attention and foreign language vocabulary learning
Objectives: The aim of the present study was to investigate the effects of specifically designed physical activities
on primary school childrenâs foreign language vocabulary learning and attentional performance.
Design: A total of 104 children aged between 8 and 10 years were assigned to either (a) an embodied learning
condition consisting of task-relevant physical activities, (b) a physical activity condition involving task-irrelevant
physical activities, or (c) a control condition consisting of a sedentary teaching style. Within a 2-week teaching
program, consisting of four learning sessions, children had to learn 20 foreign language words.
Method: Children were tested on their memory performance (cued r
VolumenabhÀngigkeit der Atemmechanik Parameter Resistance und Compliance und ihre Bestimmung bei mechanischer Beatmung mit der SLICE Methode
Characterization of a short isoform of the kidney protein podocin in human kidney
BACKGROUND: Steroid resistant nephrotic syndrome is a severe hereditary disease often caused by mutations in the NPHS2 gene. This gene encodes the lipid binding protein podocin which localizes to the slit diaphragm of podocytes and is essential for the maintenance of an intact glomerular filtration barrier. Podocin is a hairpin-like membrane-associated protein that multimerizes to recruit lipids of the plasma membrane. Recent evidence suggested that podocin may exist in a canonical, well-studied large isoform and an ill-defined short isoform. Conclusive proof of the presence of this new podocin protein in the human system is still lacking. METHODS: We used database analyses to identify organisms for which an alternative splice variant has been annotated. Mass spectrometry was employed to prove the presence of the shorter isoform of podocin in human kidney lysates. Immunofluorescence, sucrose density gradient fractionation and PNGase-F assays were used to characterize this short isoform of human podocin. RESULTS: Mass spectrometry revealed the existence of the short isoform of human podocin on protein level. We cloned the coding sequence from a human kidney cDNA library and showed that the expressed short variant was retained in the endoplasmic reticulum while still associating with detergent-resistant membrane fractions in sucrose gradient density centrifugation. The protein is partially N-glycosylated which implies the presence of a transmembranous form of the short isoform. CONCLUSIONS: A second isoform of human podocin is expressed in the kidney. This isoform lacks part of the PHB domain. It can be detected on protein level. Distinct subcellular localization suggests a physiological role for this isoform which may be different from the well-studied canonical variant. Possibly, the short isoform influences lipid and protein composition of the slit diaphragm complex by sequestration of lipid and protein interactors into the endoplasmic reticulum
Impact of nonâCNS childhood cancer on restingâstate connectivity and its association with cognition
Introduction
Nonâcentral nervous system cancer in childhood (nonâCNS CC) and its treatments pose a major threat to brain development, with implications for functional networks. Structural and functional alterations might underlie the cognitive lateâeffects identified in survivors of nonâCNS CC. The present study evaluated restingâstate functional networks and their associations with cognition in a mixed sample of nonâCNS CC survivors (i.e., leukemia, lymphoma, and other nonâCNS solid tumors).
Methods
Fortyâthree patients (offâtherapy for at least 1 year and aged 7â16 years) were compared with 43 healthy controls matched for age and sex. Highâresolution T1âweighted structural magnetic resonance and restingâstate functional magnetic resonance imaging were acquired. Executive functions, attention, processing speed, and memory were assessed outside the scanner.
Results
Cognitive performance was within the normal range for both groups; however, patients after CNSâdirected therapy showed lower executive functions than controls. Seedâbased connectivity analyses revealed that patients exhibited stronger functional connectivity between frontoâ and temporoâparietal pathways and weaker connectivity between parietalâcerebellar and temporalâoccipital pathways in the right hemisphere than controls. Functional hyperconnectivity was related to weaker memory performance in the patients' group.
Conclusion
These data suggest that even in the absence of brain tumors, nonâCNS CC and its treatment can lead to persistent cerebral alterations in restingâstate network connectivity
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