Temperature sensitive flow regulator Patent

Describing device for changing flow rate of fluid in duct in response to change in temperatur

A temperature-controlled fluid flow regulator

Slide-type valve, constructed of materials having different coefficients of thermal expansion, provides variable flow area as the slides move in relation to each other with temperature changes

Pneumatic shutoff and time-delay valve operates at controlled rate

Shutoff and time delay valve, which incorporates a metering spool that moves at constant velocity under pneumatic pressure and spring compression, increases fluid-flow area at a uniform rate. Diaphragm areas, control cavity volume, and bleed-orifice size may be varied to give any desired combination of time delay and spool travel time

People Do Read Large Ads: The Law of Advertising from Outer Space

Although many may not be aware of it; the .technological capability currently exists to launch large, billboard-type advertisements into outer space. These ads could be as large as a full moon, and last for an almost infinite duration. Reaction to the possibility of space advertising has been generally negative, with many expressing concerns about the aesthetic effect of floating space billboards. One recent example of this is the proposal to launch a billboard containing the five-ring Olympic symbol in connection with Atlanta\u27s hosting the 1996 Olympics, which was rejected by Mayor Maynard Jackson as environmental pollution. Despite the fact that space advertising is a very real possibility for the near future, the legal framework under which regulation of that advertising would be analyzed is unsettled. A bill which would ban all space advertising was introduced in Congress, but was never acted upon. Comparing a ban on space advertising to other regulations of commercial speech, the Authors analyze whether the proposed ban would withstand constitutional scrutiny under the commercial speech doctrine. They begin by tracing the development of the doctrine and examining the lesser position of commercial speech within the First Amendment hierarchy of protection. They then consider an application of the commercial speech doctrine to a ban on space advertising. Given that space might serve as a platform for other types of speech as well, the Authors examine how a ban on noncommercial speech in space might fare under constitutional scrutiny. Finally, they offer their respective conclusions, which range from qualified to absolute endorsement of restrictions on space advertising

People Do Read Large Ads: The Law of Advertising from Outer Space

Although many may not be aware of it; the .technological capability currently exists to launch large, billboard-type advertisements into outer space. These ads could be as large as a full moon, and last for an almost infinite duration. Reaction to the possibility of space advertising has been generally negative, with many expressing concerns about the aesthetic effect of floating space billboards. One recent example of this is the proposal to launch a billboard containing the five-ring Olympic symbol in connection with Atlanta\u27s hosting the 1996 Olympics, which was rejected by Mayor Maynard Jackson as environmental pollution. Despite the fact that space advertising is a very real possibility for the near future, the legal framework under which regulation of that advertising would be analyzed is unsettled. A bill which would ban all space advertising was introduced in Congress, but was never acted upon. Comparing a ban on space advertising to other regulations of commercial speech, the Authors analyze whether the proposed ban would withstand constitutional scrutiny under the commercial speech doctrine. They begin by tracing the development of the doctrine and examining the lesser position of commercial speech within the First Amendment hierarchy of protection. They then consider an application of the commercial speech doctrine to a ban on space advertising. Given that space might serve as a platform for other types of speech as well, the Authors examine how a ban on noncommercial speech in space might fare under constitutional scrutiny. Finally, they offer their respective conclusions, which range from qualified to absolute endorsement of restrictions on space advertising

Speech and language therapy versus placebo or no intervention for speech problems in Parkinson's disease

Parkinson's disease patients commonly suffer from speech and vocal problems including dysarthric speech, reduced loudness and loss of articulation. These symptoms increase in frequency and intensity with progression of the disease). Speech and language therapy (SLT) aims to improve the intelligibility of speech with behavioural treatment techniques or instrumental aids

Relations Between Sexual and Gender Minority Stress, Personal Hardiness, and Psychological Stress in Emerging Adulthood: Examining Indirect Effects via Human-Animal Interaction

Introduction: Although there is emerging evidence that companion animals are important sources of comfort and support for many LGBTQ+ (lesbian, gay, bisexual, transgender and other sexual and gender minority identities) individuals, little is known about the interplay between sexual and gender minority (SGM) stress, human-animal interaction (HAI), and psychological adjustment in this population. To address this gap in the literature, the current study examined the role of HAI in relations between SGM stress (i.e., microaggressions, victimization) and psychological adjustment (i.e., self-efficacy, psychological stress) during emerging adulthood. Methods: Our sample included LGBTQ+ young adults between the ages of 18 and 21 years (N = 136; 37.5% racial/ethnic minority; 49.2% transgender or gender-expansive; 98.5% sexual minority). Participants were recruited via convenience sampling methods in partnership with community agencies. We tested a mediation model using structural equation modeling with a bootstrapping approach to examine direct and indirect associations between SGM stress, HAI, and psychological adjustment, controlling for the effects of demographic factors. Results: The hypothesized mediation model fit the data well (Χ2/df = 1.71, CFI = 0.96, TLI = 0.93, RMSEA = 0.07, SRMR = 0.04). Results indicated that SGM microaggressions were significantly associated with HAI (β = 0.45, p \u3c .001, 95% CI [0.24, 0.62]) and psychological stress (β = 0.36, p \u3c .001, 95% CI [0.19, 0.54]), but not self-efficacy. Victimization was not significantly associated with HAI, self-efficacy, or psychological stress. HAI was significantly and positively associated with self-efficacy (β = 0.31, p \u3c .001, 95% CI [0.13, 0.47]), but was not significantly related to psychological stress. Finally, we found evidence of only one indirect-only effect of SGM microaggressions on self-efficacy via HAI (β = 0.14, p = .001, 95% CI [0.07, 0.24]). Conclusion: This is the first study, to our knowledge, that explored the potential mediating role of HAI in the relations between SGM microaggressions, victimization, self-efficacy, and psychological stress. Results of this study suggest that exposure to SGM stress may lead LGBTQ+ young adults to seek out relationships with pets, which in turn, may promote self-efficacy, a factor associated with resilience. However, due to the cross-sectional nature of our data, we cannot infer causation. Further research is needed to explore the longitudinal reciprocal associations between SGM stress, HAI, and psychological adjustment over time, and mechanisms through which HAI may promote resilience in this population.https://scholarscompass.vcu.edu/gradposters/1129/thumbnail.jp

Contact and Friction of Nano-Asperities: Effects of Adsorbed Monolayers

Molecular dynamics simulations are used to study contact between a rigid, nonadhesive, spherical tip with radius of order 30nm and a flat elastic substrate covered with a fluid monolayer of adsorbed chain molecules. Previous studies of bare surfaces showed that the atomic scale deviations from a sphere that are present on any tip constructed from discrete atoms lead to significant deviations from continuum theory and dramatic variability in friction forces. Introducing an adsorbed monolayer leads to larger deviations from continuum theory, but decreases the variations between tips with different atomic structure. Although the film is fluid, it remains in the contact and behaves qualitatively like a thin elastic coating except for certain tips at high loads. Measures of the contact area based on the moments or outer limits of the pressure distribution and on counting contacting atoms are compared. The number of tip atoms making contact in a time interval grows as a power of the interval when the film is present and logarithmically with the interval for bare surfaces. Friction is measured by displacing the tip at a constant velocity or pulling the tip with a spring. Both static and kinetic friction rise linearly with load at small loads. Transitions in the state of the film lead to nonlinear behavior at large loads. The friction is less clearly correlated with contact area than load.Comment: RevTex4, 17 pages, 13 figure