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At least 1,225 records · Page 68Linked to original sources
PubMed1998

The magic of hypnosis: is it child's play?

Hypnosis is often disregarded and undervalued because it cannot be currently explained by natural science or scientific method. An alternative existential psychology paradigm, specifically an existential-phenomenological model, is offered here to close the gap between the theoretical and the actual clinical practice of hypnosis. This existential-phenomenological model emphasizes the individual's experience over any preconceived notions or diagnoses. In this context, the author introduces and discusses the idea that perception prefigures embodiment, creating the power of suggestion. And children's greater overall hypnotic susceptibility is explained as a result of natural unbiased observations of the world, free of the mind-body split that adults apply to perception.

Adult↗
PubMed1992

The real magic.

Explore the source record for details and available documents.

Adult↗
PubMed2004

Chunks in expert memory: evidence for the magical number four ... or is it two?

This study aims to test the divergent predictions of the chunking theory (Chase & Simon, 1973) and template theory (Gobet & Simon, 1996a, 2000) with respect to the number of chunks held in visual short-term memory and the size of chunks used by experts. We presented game and random chessboards in both a copy and a recall task. In a within-subject design, the stimuli were displayed using two presentation media: (a) physical board and pieces, as in Chase and Simon's (1973) study; and (b) a computer display, as in Gobet and Simon's (1998) study. Results show that, in most cases, no more than three chunks were replaced in the recall task, as predicted by template theory. In addition, with game positions in the computer condition, chess Masters replaced very large chunks (up to 15 pieces), again in line with template theory. Overall, the results suggest that the original chunking theory overestimated short-term memory capacity and underestimated the size of chunks used, in particular with Masters. They also suggest that Cowan's (2001) proposal that STM holds four chunks may be an overestimate.

Adolescent↗
PubMedDate not supplied

Puff the magic dragon: how our understanding of fallout, residual and induced radiation evolved over fifty years of nuclear weapons testing.

Radiobiological science has proceeded on empirical principles since health physics became a necessary professional adjunct to the military and civilian uses of nuclear energy in the aftermath of the detonations at Hiroshima and Nagasaki. This paper reviews the data which gradually emerged indicating that early assumptions about the detonation of atomic and nuclear weapons underestimated the significance of fallout, residual and induced radiation as health hazards. Many of these assumptions are being examined in three test cases concerning veterans of United Kingdom atomic and nuclear weapons tests heard by the European Court of Human Rights in November 1997.

History, 20th Century↗
PubMedDate not supplied

A magic sword or a big itch: an historical look at the United States biological weapons programme.

In the late 1950s interest in entomological warfare increased, and literature describing the US biological warfare programmes on the use of the mosquito Aedes aegypti, the vector for transmitting yellow fever, has now been released. Yellow fever was considered as a suitable disease to use in southern regions of the former Soviet Union. The US destroyed its biological weapon stockpiles in the early 1970s. In addition to its offensive biological warfare programme, the US conducted extensive trials to assess its own vulnerability to biological attack. These trials and a later series of threat analyses indicate that biological agents could, indeed, affect large areas of the US if the attackers were allowed to proceed unmolested. Some of the threat analyses present highly questionable scenarios.

Biological Warfare↗
PubMed2001

Blastocyst culture: myth or magic?

The development of sequential serum-free culture medium has led to a reported increase in implantation rate after transfer of embryos on days 5-6 (approximately 40%) compared with those achieved after transfer on days 2-3 (approximately 20%). However, there are numerous uncertainties surrounding extended culture that need to be considered. This article examines some of the problems and questions considered in relation to the following areas: the developmental capacity of the embryo in vitro; the uterine environment after embryo transfer; the clinical indications surrounding blastocyst transfer including a reduction in multiple pregnancy rate and relevance in preimplantation genetic diagnosis (PGD); and the introduction of blastocyst culture into the embryology laboratory.

Blastocyst↗
PubMed2005

Zebularine: a unique molecule for an epigenetically based strategy in cancer chemotherapy. The magic of its chemistry and biology.

1-(beta-D-ribofuranosyl)-1,2-dihydropyrimidin-2-one (zebularine) is structurally 4-deamino cytidine. The increased electrophilic character of this simple aglycon endows the molecule with unique chemical and biological properties, making zebularine a versatile starting material for the synthesis of complex nucleosides and an effective inhibitor of cytidine deaminase and DNA cytosine methyltransferase. Zebularine is a stable, antitumor agent that preferentially targets cancer cells and shows activity both in vitro and in experimental animals, even after oral administration.

Administration, Oral↗