The impact of interpersonal contact on attitudes towards the obese

2011 ◽  
Author(s):  
Jennifer Harman ◽  
Holly Nicewicz
Keyword(s):  
Interpersonal Contact ◽  
The Impact

The influence of gender on the choice of education: the mediating effect of interest in statistics

2020 ◽  
Vol 13 (1) ◽  
pp. 87-105
Author(s):  
Jeanette Carlsson Hauff ◽  
Jonas Nilsson
Keyword(s):  
Indirect Effect ◽  
Business School ◽  
Perceived Competence ◽  
Mediating Effect ◽  
Interpersonal Contact ◽  
Content Type ◽  
Explanatory Variables ◽  
Use Of Technology ◽  
Variable Level ◽  
The Impact

Purpose The purpose of this paper is to verify the existence of a gender unbalance regarding choice of quantitatively oriented masters’ programs at a business school. The aim, further, is to analyze variables potentially affecting this unbalance: interest in quantitative matters, perceived competence regarding quantitative subjects and measures of quantitative knowledge. Design/methodology/approach Empirical data was collected through a survey of 203 students at a Swedish business school. A measure of quantitative orientation was developed to assess the level of nine masters’ programs at the school. A regression analysis was used to identify the impact of gender and the other explanatory variables. Findings The results indicate that there is a gender unbalance: female students choose master programs perceived to be less quantitatively oriented. However, when studying gender together with level of interest, perceived competence and objective knowledge, the direct gender effect disappears. Instead, a strong positive effect of interest in quantitative matters emerges, as does an indirect effect of gender through the mediating variable level of interest. Practical implications The dual importance of level of interest influences the pedagogical suggestions made. Interpersonal contact between teacher and student and use of technology are suggested to raise the level of interest. To reduce the indirect effect of gender through interest, a suggestion is made to work with stereotype threats. Originality/value The paper addresses a topic of importance: the potential gender unbalance as regards qualitative orientation. It manages to nuance the picture of the importance of gender – and through the introduction of level of interest suggests a productive path forward.

Just a Little Bit of History Repeating

2020 ◽  
pp. 1-24
Author(s):  
Michelson and
Keyword(s):  
Public Opinion ◽  
Gay Men ◽  
Mentally Ill ◽  
Natural Order ◽  
Transgender People ◽  
Interpersonal Contact ◽  
Media Portrayals ◽  
Transgender Identity ◽  
The Impact

Recent vocal and vociferous anti-transgender messages parallel historical attacks aimed at gay men and lesbians throughout the 20th century. Back then, many people described gay and lesbian people as pedophiles, sexual deviants, unnatural, or mentally ill. Both historically and today, opponents to transgender equality often call into question the legitimacy of transgender identity, dismissing transgender people as predatory, deviant, a threat to the natural order, or mentally ill. While there are parallels between public opinion toward gay men and lesbians then and transgender people today, this chapter discusses three significant differences: the nature and structure of public opinion, the role of media portrayals, and the impact of interpersonal contact with outgroups. The chapter addresses each in turn, describing how the past, present, and future of transgender rights differ from those of rights for gay men and lesbians.

scholarly journals Quantifying population contact patterns in the United States during the COVID-19 pandemic

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dennis M. Feehan ◽  
Ayesha S. Mahmud
Keyword(s):  
United States ◽  
At Risk ◽  
The United States ◽  
Interpersonal Contact ◽  
Demographic Groups ◽  
Contact Rates ◽  
Contact Patterns ◽  
The Us ◽  
At Risk Populations ◽  
The Impact

AbstractSARS-CoV-2 is transmitted primarily through close, person-to-person interactions. Physical distancing policies can control the spread of SARS-CoV-2 by reducing the amount of these interactions in a population. Here, we report results from four waves of contact surveys designed to quantify the impact of these policies during the COVID-19 pandemic in the United States. We surveyed 9,743 respondents between March 22 and September 26, 2020. We find that interpersonal contact has been dramatically reduced in the US, with an 82% (95%CI: 80%–83%) reduction in the average number of daily contacts observed during the first wave compared to pre-pandemic levels. However, we find increases in contact rates over the subsequent waves. We also find that certain demographic groups, including people under 45 and males, have significantly higher contact rates than the rest of the population. Tracking these changes can provide rapid assessments of the impact of physical distancing policies and help to identify at-risk populations.

Formation of Lunar Craters and Bright Rays as a Result of Meteorite Impacts

1962 ◽  
Vol 14 ◽  
pp. 415-418
Author(s):  
K. P. Stanyukovich ◽  
V. A. Bronshten
Keyword(s):  
Explosive Charge ◽  
The Moon ◽  
Meteorite Impacts ◽  
The Earth ◽  
Lunar Craters ◽  
The Impact

The phenomena accompanying the impact of large meteorites on the surface of the Moon or of the Earth can be examined on the basis of the theory of explosive phenomena if we assume that, instead of an exploding meteorite moving inside the rock, we have an explosive charge (equivalent in energy), situated at a certain distance under the surface.

The Geosciences Applied to Lunar Exploration

1962 ◽  
Vol 14 ◽  
pp. 169-257 ◽  
Author(s):  
J. Green
Keyword(s):  
Lunar Surface ◽  
Probable Mechanism ◽  
Point Of View ◽  
Lunar Exploration ◽  
Geological Model ◽  
Apply Geophysics ◽  
Surface Features ◽  
The Impact

The term geo-sciences has been used here to include the disciplines geology, geophysics and geochemistry. However, in order to apply geophysics and geochemistry effectively one must begin with a geological model. Therefore, the science of geology should be used as the basis for lunar exploration. From an astronomical point of view, a lunar terrain heavily impacted with meteors appears the more reasonable; although from a geological standpoint, volcanism seems the more probable mechanism. A surface liberally marked with volcanic features has been advocated by such geologists as Bülow, Dana, Suess, von Wolff, Shaler, Spurr, and Kuno. In this paper, both the impact and volcanic hypotheses are considered in the application of the geo-sciences to manned lunar exploration. However, more emphasis is placed on the volcanic, or more correctly the defluidization, hypothesis to account for lunar surface features.

Asteroid and Comet Impact Speeds upon Mars: Significance for Panspermia and the Supply of Organics

1997 ◽  
Vol 161 ◽  
pp. 197-201 ◽  
Author(s):  
Duncan Steel
Keyword(s):  
Probability Distributions ◽  
Regions Of Interest ◽  
Significant Fraction ◽  
Organic Chemicals ◽  
Impact Speed ◽  
The Mean ◽  
The Impact

AbstractWhilst lithopanspermia depends upon massive impacts occurring at a speed above some limit, the intact delivery of organic chemicals or other volatiles to a planet requires the impact speed to be below some other limit such that a significant fraction of that material escapes destruction. Thus the two opposite ends of the impact speed distributions are the regions of interest in the bioastronomical context, whereas much modelling work on impacts delivers, or makes use of, only the mean speed. Here the probability distributions of impact speeds upon Mars are calculated for (i) the orbital distribution of known asteroids; and (ii) the expected distribution of near-parabolic cometary orbits. It is found that cometary impacts are far more likely to eject rocks from Mars (over 99 percent of the cometary impacts are at speeds above 20 km/sec, but at most 5 percent of the asteroidal impacts); paradoxically, the objects impacting at speeds low enough to make organic/volatile survival possible (the asteroids) are those which are depleted in such species.

Organic Syntheses During the Impact of a Comet with a Gaseous Planet

1997 ◽  
Vol 161 ◽  
pp. 189-195
Author(s):  
Cesare Guaita ◽  
Roberto Crippa ◽  
Federico Manzini
Keyword(s):  
Polymeric Material ◽  
Molecular Form ◽  
Parent Compound ◽  
Blue Filter ◽  
Organic Syntheses ◽  
The Impact

AbstractA large amount of CO has been detected above many SL9/Jupiter impacts. This gas was never detected before the collision. So, in our opinion, CO was released from a parent compound during the collision. We identify this compound as POM (polyoxymethylene), a formaldehyde (HCHO) polymer that, when suddenly heated, reformes monomeric HCHO. At temperatures higher than 1200°K HCHO cannot exist in molecular form and the most probable result of its decomposition is the formation of CO. At lower temperatures, HCHO can react with NH3 and/or HCN to form high UV-absorbing polymeric material. In our opinion, this kind of material has also to be taken in to account to explain the complex evolution of some SL9 impacts that we observed in CCD images taken with a blue filter.

Hydrogen Cyanide Polymers from the Impact of Comet P/Shoemaker-Levy 9 on Jupiter

1997 ◽  
Vol 161 ◽  
pp. 179-187
Author(s):  
Clifford N. Matthews ◽  
Rose A. Pesce-Rodriguez ◽  
Shirley A. Liebman
Keyword(s):  
Amino Acids ◽  
Solar System ◽  
Hydrogen Cyanide ◽  
Nitrogen Heterocycles ◽  
Laboratory Studies ◽  
Heterogeneous Solids ◽  
The Many ◽  
Comet Halley ◽  
The Impact ◽  
By Products

AbstractHydrogen cyanide polymers – heterogeneous solids ranging in color from yellow to orange to brown to black – may be among the organic macromolecules most readily formed within the Solar System. The non-volatile black crust of comet Halley, for example, as well as the extensive orangebrown streaks in the atmosphere of Jupiter, might consist largely of such polymers synthesized from HCN formed by photolysis of methane and ammonia, the color observed depending on the concentration of HCN involved. Laboratory studies of these ubiquitous compounds point to the presence of polyamidine structures synthesized directly from hydrogen cyanide. These would be converted by water to polypeptides which can be further hydrolyzed to α-amino acids. Black polymers and multimers with conjugated ladder structures derived from HCN could also be formed and might well be the source of the many nitrogen heterocycles, adenine included, observed after pyrolysis. The dark brown color arising from the impacts of comet P/Shoemaker-Levy 9 on Jupiter might therefore be mainly caused by the presence of HCN polymers, whether originally present, deposited by the impactor or synthesized directly from HCN. Spectroscopic detection of these predicted macromolecules and their hydrolytic and pyrolytic by-products would strengthen significantly the hypothesis that cyanide polymerization is a preferred pathway for prebiotic and extraterrestrial chemistry.

Unusual Microstructure in Shock-Compacted Graphite

1970 ◽  
Vol 28 ◽  
pp. 474-475
Author(s):  
Lucien F. Trueb
Keyword(s):  
Mechanical Characteristic ◽  
Compression Wave ◽  
Gray Zone ◽  
Flyer Plate ◽  
Compacted Graphite ◽  
The Impact

Crushed and statically compressed Madagascar graphite that was explosively shocked at 425 kb by means of a planar flyer-plate is characterized by a black zone extending for 2 to 3 nun below the impact plane of the driver. Beyond this point, the material assumes the normal gray color of graphite. The thickness of the black zone is identical with the distance taken by the relaxation wave to overtake the compression wave.The main mechanical characteristic of the black material is its great hardness; steel scalpels and razor blades are readily blunted during attempts to cut it. An average microhardness value of 95-3 DPHN was obtained with a 10 kg load. This figure is a minimum because the indentations were usually cracked; 14.8 DPHN was measured in the gray zone.

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