Elevator Or Stairs? A Dive Into Patron Decision Making

When put in a situation to get to higher/lower floors of a building, there are many factors that go into play for whether an individual chooses to take the stairs (active) or ride the elevator (sedentary). Students were approached at waiting area for the four elevators in a University Library and were asked series of questions regarding their reasoning for taking the stair or elevator to ascend, as well as their thoughts on the stairwell appearance. Point of application #1: Stairwell appearance and aesthetics should be considered during the design process in order to increase use and physical activity amongst individuals. Point of application #2: Stairwell and elevator location, along with signage, should be considered during the design or remodeling process to create a more accessible stairwell. Point of application #3: The benefits of taking the stairs rather than using an elevator should be promoted to encourage using the stairs. Key Words: active lifestyle, active transport, point of decision prompt, physical activity, healt

Jet confinement by magneto-torsional oscillations

Many quasars and active galactic nuclei (AGN) appear in radio, optical, and X-ray maps, as a bright nuclear sources from which emerge single or double long, thin jets. When observed with high angular resolution these jets show structure with bright knots separated by relatively dark regions. Nonthermal nature of a jet radiation is well explained as the synchrotron radiation of the relativistic electrons in an ordered magnetic field. We consider magnetic collimation, connected with torsional oscillations of a cylinder with elongated magnetic field, and periodically distributed initial rotation around the cylinder axis. The stabilizing azimuthal magnetic field is created here by torsional oscillations, where charge separation is not necessary. Approximate simplified model is developed. Ordinary differential equation is derived, and solved numerically, what gives a possibility to estimate quantitatively the range of parameters where jets may be stabilized by torsional oscillations.Comment: accepted for publication in Astrophysics and Space Scienc

Crossover between ionic/covalent and pure ionic bonding in magnesium oxyde clusters

An empirical potential with fluctuating charges is proposed for modelling (MgO)_n clusters in both the molecular (small n) and bulk (n->infty) regimes. Vectorial polarization forces are explicitely taken into account in the self-consistent determination of the charges. Our model predicts cuboid cluster structures, in agreement with previous experimental and theoretical results. The effective charge transferred between magnesium and oxygen smoothly increases from 1 to 2, with an estimated crossover size above 300 MgO molecules

Physical Activity is Related to Mental Health and Sexual Orientation Among Women in College

International Journal of Exercise Science 15(5): 1347-1356, 2022. Non-heterosexual women tend to report lower physical activity and poorer mental health than their heterosexual counterparts. The purpose of this study was to examine differences in mental health (stress and depression) and physical activity among female college students by sexual orientation. Students self-reported socio-demographic characteristics, physical activity, perceived stress, and depressive symptoms via an online survey. Correlations, independent samples t-tests, and multiple regression analyses were used to examine relationships between perceived stress, depressive symptoms, physical activity, and sexual orientation. Most participants (n = 1072, 20.0 ± 1.5 years) identified as heterosexual (90.1%), non-Hispanic White (73%), and in their fourth semester or higher. Perceived stress and depressive symptoms differed significantly between heterosexual and non- heterosexual women, but physical activity participation did not. Higher participation in vigorous physical activity and strength training predicted both lower depressive symptoms and lower perceived stress while controlling for sexual orientation. For both heterosexual and non-heterosexual sexual women, depressive symptoms had a positive relationship with perceived stress, and a negative relationship to strength training. Depressive symptoms also had negative correlations with vigorous physical activity among heterosexual women. Findings indicate non-heterosexual women experience greater perceived stress and depressive symptoms, and these mental health issues can have multi-level implications. Greater vigorous physical activity and strength training were associated with lower perceived stress and depression regardless of sexual orientation. Administrators and health promoters should consider ways to promote these forms of physical activity among non-heterosexual women. Further research is needed on the potential barriers impacting engagement in physical activity

The Role of The Physical and Social Environment for Physical Activity for College Students During the Covid-19 Pandemic

Background: The COVID-19 pandemic created significant disruptions for college students, impacting health and physical activity (PA). Changes to the PA environment presented many challenges for students.Purpose: To examine the influence of the physical and social environment on PA participation for college students during the onset of COVID-19 restrictions.Methods: This cross-sectional, mixed methods survey used an online questionnaire during the onset of COVID-19 restrictions with a volunteer sample of college students at a large university in the United States. Participants self-reported their demographics, PA level and environment for PA, and responded to an open-ended question about their PA participation during the pandemic. Correlations and independent samples t-tests examined relationships between PA and the environment. Qualitative data were scanned to identify overarching themes.Results: Participants (n = 395) were predominantly Non-Hispanic White and female. The neighborhood environment and access to PA equipment were associated with PA for both men and women. Major qualitative themes highlighted the role of the physical environment and PA. Participating in PA with friends and family was positively associated with PA for both men and women as well.Conclusions: This study provides insight on the importance of the social and built environment for encouraging and supporting PA among college students during the COVID-19 pandemic which may provide insight for distance education as higher education evolves

Towards c=0 Flows

We discuss some implications of the gravitational dressing of the renormalization group for conformal field theories perturbed by relevant operators. The renormalization group flows are defined with respect to the dilatation operator associated with the $J_0^{(0)}$ mode of the $SL(2,R)$ affine algebra. We discuss the possibility of passing under the $c=25$ barrier along renormalization group flows in some models.Comment: LaTex file, 11 pages, QMW Preprint, QMW 94-2

Further Comparison between ATNoSFERES and XCSM

International audienceIn this paper we present ATNoSFERES, a new framework based on an indirect encoding Genetic Algorithm which builds finite-state automata controllers able to deal with perceptual aliazing. In the context of our ongoing line of research, we compare it with XCSM, a memory-based extension of the most studied Learning Classifier System, XCS, through two benchmark experiments. We focus in particular on internal state generalization, and add special purpose features to ATNoSFERES to fulfill that comparison. We then discuss the role played by internal state generalization in the experiments studied

Parity Invariance and Effective Light-Front Hamiltonians

In the light-front form of field theory, boost invariance is a manifest symmetry. On the downside, parity and rotational invariance are not manifest, leaving the possibility that approximations or incorrect renormalization might lead to violations of these symmetries for physical observables. In this paper, it is discussed how one can turn this deficiency into an advantage and utilize parity violations (or the absence thereof) in practice for constraining effective light-front Hamiltonians. More precisely, we will identify observables that are both sensitive to parity violations and easily calculable numerically in a non-perturbative framework and we will use these observables to constrain the finite part of non-covariant counter-terms in effective light-front Hamiltonians.Comment: REVTEX, 9 page

ATTENUATION OF GROUND REACTION FORCES IN DISMOUNTS FROM TEH BALANCE BEAM

Epidemiological studies have documented the incidence of injuries in female gymnasts . In comparison to other sports, the incidence of injury in gymnastics is high relative to other sports. One epidemiology study prompted the author to state that "...women's gymnastics should he recognized as a hazardous sport." To understand the etiology 01 injury, researchers have identified injuries by sites, types and/or events (floor, uneven bars, vault, and balance beam). Dismounts, considered an element 01 all events, have drawn attention as an injury mechanism. Studies have shown he dismount, especially when gymnasts attempt to "stick" their lauding, to be a major component of the incidence of injury. This study investigated ground reaction forces in the dismount from the balance beam under two styles (stick and roll-out of the landing). Attenuation of relatively high impact forces through modification of landing may be used, at minimum, in practices to reduce the exposure to gymnasts to this physical contraindication. Subjects were 23 female gymnasts who ranged in age (118 to 201 months, mean=158.8, SD=23.7) and level (5 to 10). Each subject was asked to perform two types of dismounts (roundoff and barani) from a balance beam and to land each dismount with two the different styles onto a mot adhered to a force platform. AU subjects had ground reaction forces for both styles of the roundoff. and 14 subjects had ground reaction forces for both styles of the barani dismount. Table 1 contains a summary of the ground reaction forces as a percentage of body weight. Our results indicate that vertical ground reaction forces are significantly reduced by rolling out of the landing