15,433 research outputs found
Meteorological interpretation of clouds or cloud systems appearing on pictures of the Alpine region received from the Earth Resources Technology Satellite (ERTS-1)
The author has identified the following significant results. Three examples of cloud-interpretation from ERTS-1 pictures are presented. When the wind speed is large enough, the cumuli are found arranged in lines that are in average two kilometers apart from each other. These lines are grouped in lines made of small cumuli and in lines made up of well developed ones. These last lines are fused on the APT picture and appear as single lines. Fog-mapping for a given region is possible if the topography of the region is known. The stratified clouds lying over mountains or in valleys begin to dissolve above the middle of the valleys and not against the slopes. As water shows a weak albedo in the near infrared, wet surfaces will appear darker than their neighborhoods. This feature seems to be confirmed by the dark spot in the north of Bozen (Southern Tyrol) that can be seen on the ERTS-1 picture taken on 31 August 1972
Objects, actions, and images: a perspective on early number development
It is the purpose of this article to present a review of research evidence that indicates the existence of qualitatively different thinking in elementary number development. In doing so, the article summarizes empirical evidence obtained over a period of 10 years. This evidence first signaled qualitative differences in numerical processing, and was seminal in the development of the notion of procept. More recently, it examines the role of imagery in elementary number processing. Its conclusions indicate that in the abstraction of numerical concepts from numerical processes qualitatively different outcomes may arise because children concentrate on different objects or different aspects of the objects, which are components of numerical processing
Teleological Essentialism: Generalized
Natural/social kind essentialism is the view that natural kind categories, both living and non-living natural kinds, as well as social kinds (e.g., race, gender), are essentialized. On this view, artifactual kinds are not essentialized. Our view—teleological essentialism—is that a broad range of categories are essentialized in terms of teleology, including artifacts. Utilizing the same kinds of experiments typically used to provide evidence of essentialist thinking—involving superficial change (study 1), transformation of insides (study 2) and inferences about offspring (study 3)—we find support for the view that a broad range of categories—living natural kinds, non-living natural kinds and artifactual kinds—are essentialized in terms of teleology. Study 4 tests a unique prediction of teleological essentialism and also provides evidence that people make inferences about purposes which in turn guide categorization judgments
Statistical Signs of Social Influence on Suicides
Certain currents in sociology consider society as being composed of
autonomous individuals with independent psychologies. Others, however, deem our
actions as strongly influenced by the accepted standards of social behavior.
The later view was central to the positivist conception of society when in 1887
\'Emile Durkheim published his monograph Suicide (Durkheim, 1897). By treating
the suicide as a social fact, Durkheim envisaged that suicide rates should be
determined by the connections (or the lack of them) between people and society.
Under the same framework, Durkheim considered that crime is bound up with the
fundamental conditions of all social life and serves a social function. In this
sense, and regardless of its extremely deviant nature, crime events are somehow
capable to release certain social tensions and so have a purging effect in
society. The social effect on the occurrence of homicides has been previously
substantiated (Bettencourt et al., 2007; Alves et al., 2013), and confirmed
here, in terms of a superlinear scaling relation: by doubling the population of
a Brazilian city results in an average increment of 135 % in the number of
homicides, rather than the expected isometric increase of 100 %, as found, for
example, for the mortality due to car crashes. Here we present statistical
signs of the social influence on the suicide occurrence in cities. Differently
from homicides (superlinear) and fatal events in car crashes (isometric), we
find sublinear scaling behavior between the number of suicides and city
population, with allometric power-law exponents, and
, for all cities in Brazil and US, respectively. The fact that
the frequency of suicides is disproportionately small for larger cities reveals
a surprisingly beneficial aspect of living and interacting in larger and more
complex social networks.Comment: 7 pages, 4 figure
Examining learning in relation to the contexts of use of ICT
Although ICT resources are commonly expected to produce uniform benefits, they are necessarily employed within pre-existing contexts of educational and social activity, and the outcome in terms of both pattern of use and learning depends on how they fit in with these. As a result, the same technology or software may have unexpectedly diverse effects, according to specific setting. If the object is to exercise control over outcome, then the conditions of use need to be planned for within the design and implementation of the technology. In order to do this, it is crucial that research gathers data on how outcomes are affected by the interplay between technology and context. This raises questions about the methods that would be appropriate for the conduct and dissemination of such research. These points are discussed in relation to three studies, one each at primary, secondary and university levels of education
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