5,716 research outputs found
The Impact of Brief Mindfulness Training on Occupational Therapy (OT) Students\u27 Perceived Level of Stress
Background: Mental health issues and burnout are becoming more common among students in healthcare programs (Dyrbye et al., 2014). As demands placed on healthcare professions continue to increase, there has been an increased interest in researching the practice of mindfulness to promote self-care (Irving et al., 2009). Mindfulness has been defined as “the awareness that emerges through paying attention on purpose, in the present moment, and nonjudgmentally to the unfolding of experience moment by moment” (Kabat-Zinn, 2003, p. 145). Mindfulness has been shown to decrease stress and anxiety among pre-healthcare college students (Burgstahler & Stenson, 2020). Little research has investigated the impacts of mindfulness on occupational therapy (OT) students specifically. The purpose of this capstone project is to address the evidence gap on the effect that an array of mindfulness strategies may have on perceived stress in OT students at various curricular levels. Research question: Does brief and information education and training in basic mindfulness techniques and strategies impact perceived levels of stress among occupational therapy students? Methods: This study used a quantitative one-group pre- post-test design. Results: A significant difference (p\u3c0.05) was shown from pre- test to post-test scores following the intervention. Conclusion: The results of this study indicated that brief, informal mindfulness training and education designed to be incorporated into daily life can have a significant impact on OT students’ perceived level of stress. Continued research using a mixed-methods approach is recommended to help optimize the intervention based on students’ preferences
GEOGRAPHIC AND INSTITUTIONAL DETERMINANTS OF REAL INCOME:A SPATIO-TEMPORAL SIMULTANEOUS EQUATION APPROACH
This paper tests a series of prominent hypotheses regarding the determinants of per-capita income using a novel spatial econometric approach to control for spillovers among neighboring countries and for spatially correlated omitted variables. We use simultaneous equations to identify alternative channels through which country characteristics might affect income, and then test the robustness of those effects. We find support for both “institutionalist” and “geographic” determinants of income. A time-varying index of institutional quality has a strong independent effect on current income, but there is also a persistent effect of geographic factors such as seasonal frost, malaria transmission, and coastal location, which influence income through their links to agricultural output, health, urbanization and trade. The data cover 95 countries across the world from 1960 through 2002, which we use to construct a pooled dataset of nine 5-year averages centered on 1960, 1965, and so on through 2000. We use both limited and full information estimators, partly based on a generalized moments (GM) estimator for spatial autoregressive coefficients, allowing for spatial error correlation, correlation across equations, and the presence of spatially lagged dependent variableseconomic growth, geography, institutions, spatial econometrics, simultaneous equations
APP Expression in Primary Neuronal Cell Cultures fromP6 Mice during in vitro Differentiation
Primary neuronal cell cultures from P6 mice were investigated in order to study amyloid protein precursor (APP) gene expression in differentiating neurons. Cerebellar granule cells which strongly express APP 695 allowed the identification of three distinct isoforms of neuronal APP 695. The high-molecular-weight form of APP 695 is sialylated. The expression pattern of neuronal APP 695 changes during in vitro differentiation. Sialylated forms become more abundant upon longer cultivation time. The secreted forms of sialylated, neuronal APP 695 are shown to comigrate with APP isolated from cerebrospinal fluid. We suggest that the different sialylation states of APP 695 may reflect the modulation of cell-cell and cell-substrate interactions during in vitro differentiation and regeneration
Conscious monitoring and control (reinvestment) in surgical performance under pressure.
Research on intraoperative stressors has focused on external factors without considering individual differences in the ability to cope with stress. One individual difference that is implicated in adverse effects of stress on performance is "reinvestment," the propensity for conscious monitoring and control of movements. The aim of this study was to examine the impact of reinvestment on laparoscopic performance under time pressure
Quasiperpendicular high Mach number Shocks
Shock waves exist throughout the universe and are fundamental to
understanding the nature of collisionless plasmas. Reformation is a process,
driven by microphysics, which typically occurs at high Mach number
supercritical shocks. While ongoing studies have investigated this process
extensively both theoretically and via simulations, their observations remain
few and far between. In this letter we present a study of very high Mach number
shocks in a parameter space that has been poorly explored and we identify
reformation using in situ magnetic field observations from the Cassini
spacecraft at 10 AU. This has given us an insight into quasi-perpendicular
shocks across two orders of magnitude in Alfven Mach number (MA) which could
potentially bridge the gap between modest terrestrial shocks and more exotic
astrophysical shocks. For the first time, we show evidence for cyclic
reformation controlled by specular ion reflection occurring at the predicted
timescale of ~0.3 {\tau}c, where {\tau}c is the ion gyroperiod. In addition, we
experimentally reveal the relationship between reformation and MA and focus on
the magnetic structure of such shocks to further show that for the same MA, a
reforming shock exhibits stronger magnetic field amplification than a shock
that is not reforming.Comment: Accepted and Published in Physical Review Letters (2015
GOPEX laser transmission and monitoring systems
The laser transmission and monitoring system for the Galileo Optical Experiment (GOPEX) at the Table Mountain Facility (TMF) in Wrightwood, California is described. The transmission system configuration and the data measurement techniques are described. The calibration procedure and the data analysis algorithm are also discussed. The mean and standard deviation of the laser energy transmitted each day of GOPEX show that the laser transmission system performed well and within the limit established in conjunction with the Galileo Project for experiment concurrence
Orchids Paper Company 2014-2015
This case captures Orchids Paper Company at a time of significant change internally and in its environment. It presents opportunities to examine the concept of fit between Strategy, Environment, and Resources to maximize profit potential. The nature of Orchids’ products and industry facilitate the case’s accessibility, since Orchids operates in an industry which is fairly simple to understand (paper manufacturing). The case is intended for use in business policy and strategy classes at the undergraduate or MBA level, but might be used in operations, supply chain, finance, accounting or marketing classes by focusing on specific questions facing the firm
Least-cost diets to teach optimization and consumer behavior, with applications to health equity, poverty measurement and international development
The least-cost diet problem introduces students to optimization and linear
programming, using the health consequences of food choice. We provide a
graphical example, Excel workbook and Word template using actual data on item
prices, food composition and nutrient requirements for a brief exercise in
which students guess at and then solve for nutrient adequacy at lowest cost,
before comparing modeled diets to actual consumption which has varying degrees
of nutrient adequacy. The graphical example is a 'three sisters' diet of corn,
beans and squash, and the full multidimensional model is compared to current
food consumption in Ethiopia. This updated Stigler diet shows how cost
minimization relates to utility maximization, and links to ongoing research and
policy debates about the affordability of healthy diets worldwide.Comment: The associated Excel workbook and Word template for student exercises
is here:
https://sites.tufts.edu/foodecon/least-cost-diet-exercise-for-nutrient-adequac
Suprathermal electrons at Saturn's bow shock
The leading explanation for the origin of galactic cosmic rays is particle
acceleration at the shocks surrounding young supernova remnants (SNRs),
although crucial aspects of the acceleration process are unclear. The similar
collisionless plasma shocks frequently encountered by spacecraft in the solar
wind are generally far weaker (lower Mach number) than these SNR shocks.
However, the Cassini spacecraft has shown that the shock standing in the solar
wind sunward of Saturn (Saturn's bow shock) can occasionally reach this
high-Mach number astrophysical regime. In this regime Cassini has provided the
first in situ evidence for electron acceleration under quasi-parallel upstream
magnetic conditions. Here we present the full picture of suprathermal electrons
at Saturn's bow shock revealed by Cassini. The downstream thermal electron
distribution is resolved in all data taken by the low-energy electron detector
(CAPS-ELS, <28 keV) during shock crossings, but the higher energy channels were
at (or close to) background. The high-energy electron detector (MIMI-LEMMS, >18
keV) measured a suprathermal electron signature at 31 of 508 crossings, where
typically only the lowest energy channels (<100 keV) were above background. We
show that these results are consistent with theory in which the "injection" of
thermal electrons into an acceleration process involves interaction with
whistler waves at the shock front, and becomes possible for all upstream
magnetic field orientations at high Mach numbers like those of the strong
shocks around young SNRs. A future dedicated study will analyze the rare
crossings with evidence for relativistic electrons (up to ~1 MeV).Comment: 22 pages, 5 figures. Accepted for publication in Ap
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