48,107 research outputs found
The foot-controlled maneuvering unit: Summary report on Skylab experiment T-020
Skylab experiment T-020 was conducted to study the maneuvering capabilities of astronauts using a relatively simple experimental self-locomotive device, referred to as the foot-controlled maneuvering unit, and to evaluate the effectiveness of ground-based facilities simulating the operation of this device in weightless conditions of space. The final results as presented of this experiment which includes comparison of the tests performed during missions SL-3 and SL-4 of the Skylab with those performed on the simulators. Some of the results of this experiment and those of Skylab experiment M509, which employed an experimental hard-controlled maneuvering unit, are discussed in terms of the development of a possible future operational maneuvering system
Going with the grain : an experiment in people-sensitive preaching
https://place.asburyseminary.edu/ecommonsatsdissertations/1085/thumbnail.jp
Social information ‘nudges’: an experiment with multiple group references
Social information ‘nudges’ concerning how others perform typically boost individual performances in experiments with one group reference point. However, in many natural settings, sometimes due to policy, there are several such group reference points. We address the complications that such multiple group social information might introduce through an experiment. The boost to average performance is significant and comparable to the one group case. Between-group inequality does not change. Individual inequality falls, however, because the boost is largest among the pre-‘nudge’ very poor performers. Finally, the boost to average performance is highest when individuals freely choose their group affiliations
An ethnography of a physical education class : an experiment in integrated living
The purpose of this study was to investigate physical education classes as episodes within which implicit and explicit learnings occur. An ethnographic description of indirect and unintended instructions conveyed to students was compiled. The descriptive data were analyzed through application of anthropological theory. The research technique utilized for this descriptive study was that of participant observation and formal and informal interviews. The data were collected during the researcher's participation in the physical education lessons of selected fifth and sixth grade classes throughout the four month period from February through May, 1975. A projective test was administered for purposes of eliciting children's rules restricting entry into an informally organized basketball game. Data were reviewed and organized into categories reflecting major events and conditions around which life in the physical education classes centered. Basic categories drawn from student interviews and observations of actual class occurrences were these: Sitting at Attention, Squad Work, Free Play, New Special Equipment, Physical Fitness Tests, Tumbling Club, and Field Day. Additional categories judged by the researcher to make significant contribution to the descriptive account of the physical education class were Leadership, Entry into a Game, and Gym Class in the Total Curriculum
Science for gifted children in grade four.
Thesis (Ed.M.)--Boston Universit
The Quantum Eraser Paradox
The Delayed-Choice Quantum Eraser experiment is commonly interpreted as
implying that in quantum mechanics a choice made at one time can influence an
earlier event. We here suggest an extension of the experiment that results in a
paradox when interpreted using a local realist interpretation combined with
backward causation ("retrocausality"). We argue that resolving the paradox
requires giving up the idea that, in quantum mechanics, a choice can influence
the past, and that it instead requires a violation of Statistical Independence
without retrocausality. We speculate what the outcome of the experiment would
be.Comment: 8 pages, 6 figures. v2: minor fixes, references adde
When herding and contrarianism foster market efficiency: a financial trading experiment
While herding has long been suspected to play a role in financial market booms and busts, theoretical analyses have struggled to identify conclusive causes for the effect. Recent theoretical work shows that informational herding is possible in a market with efficient asset prices if information is bi-polar, and contrarianism is possible with single-polar information. We present an experimental test for the validity of this theory, contrasting with all existing experiments where rational herding was theoretically impossible and subsequently not observed. Overall we observe that subjects generally behave according to theoretical predictions, yet the fit is lower for types who have the theoretical potential to herd. While herding is often not observed when predicted by theory, herding (sometimes irrational) does occur. Irrational contrarianism in particular leads observed prices to substantially differ from the efficient benchmark. Alternative models of behavior, such as risk aversion, loss aversion or error correction, either perform quite poorly or add little to our understanding
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