The null hypothesis is not called that for nothing: statistical tests in randomized trials

This article aims to update readers on different ways to arrange one’s thinking about conventional null hypotheses in randomized trials. It covers basic criticism of conventional hypotheses and, beyond this, covers relevant developments in methodological, organizational, and science policy arenas. This article includes coverage of new ways to frame null hypotheses, new technical resources, standards for registering trials and reporting on them, cumulating results, common mistakes, and post-trial analysis of null results. The paper includes ideas for research and development on each topic.

There are nothing but hard cases

Conclusion I have tried to suggest that two types of hard cases can be distinguished: real hard cases which appear when the game of justice is played and a situation appears which the play does not recognize, and false hard cases which are a part of an argument for a certain paradigm (often in key-concept reasoning). To recognize the latter kind of hard cases, one has to know the rules for the paradigm in which such hard cases function as examples.The solution of real hard cases can only be found through a study of how the game of justice is played. And to do this, it is also necessary to recognize the false problems which are caused by mixing in arguments from other language games. The investigation of hard cases must concentrate on what is most familiar to the players and try to separate the grammar of the game of justice from the experience that one can get from playing the game itself.     

The ideal subject distance for passport pictures

In an age of global combat against terrorism, the recognition and identification of people on document images is of increasing significance. Experiments and calculations have shown that the camera-to-subject distance - not the focal length of the lens - can have a significant effect on facial proportions. Modern passport pictures should be able to function as a reference image for automatic and manual picture comparisons. This requires a defined subject distance. It is completely unclear which subject distance, in the taking of passport photographs, is ideal for the recognition of the actual person. We show here that the camera-to-subject distance that is perceived as ideal is dependent on the face being photographed, even if the distance of 2m was most frequently preferred. So far the problem of the ideal camera-to-subject distance for faces has only been approached through technical calculations. We have, for the first time, answered this question experimentally with a double-blind experiment. Even if there is apparently no ideal camera-to-subject distance valid for every face, 2m can be proposed as ideal for the taking of passport pictures. The first step would actually be the determination of a camera-to-subject distance for the taking of passport pictures within the standards. From an anthropological point of view it would be interesting to find out which facial features allow the preference of a shorter camera-to-subject distance and which allow the preference of a longer camera-to-subject distance.     

Is technology transfer to subsistence farmers doubling nothing?

Editors Note: This commentary touches on an aspect of technology transfer to the Third World that often is neglected: Can the technology recipients afford to use it? Although the authors focus on the economics of shrimp production by subsistence farmers, affordability is one of the major concomitant issues of transfer from developed to developing countries.     

Death of an exception or much ado about nothing

Hospitals often engage in physician recruitment in an effort to fulfill a community need for a particular medical specialty. In doing so, the hospital must comply with the regulatory requirements of the physician recruitment exception of the Stark law, which over the years has generated a great deal of discussion and perhaps confusion. The publication of the Stark II, Phase II regulations in March 2004 was supposed to provide guidance and clarity, but the new regulations have raised a number of new issues and concerns, particularly regarding the requirements imposed on recruiting arrangements involving group practices. This Article reviews the regulatory requirements of the new physician recruitment exception and addresses several of the concerns that have been raised. Specifically, it examines the new regulatory definition of the "geographic area served by the hospital," the restrictions on income guarantees when the recruited physician joins a group practice, and the prohibition on additional practice restrictions. The author concludes that, while some of these concerns are legitimate, others will have little practical implication and should not hinder the ability of hospitals to engage in reasonable, beneficial recruitment activities.     

Money for nothing and your MP3s for free

The judgment of the Federal Court of Australia (‘the Court’)in Universal Music is the first judicial pronouncement in Australiaon the legality of website operators who provide hyperlinksto remote websites to allow ‘internauts’ (web users)to download MP3 music files and the liability of internet serviceproviders (ISPs) and their employees for authorizing that infringementunder Australian copyright law.     

被害人独立诉讼主体地位的回归

原始的刑事自诉模式下,被害人为刑事诉讼的主体之一。但在漫长的中世纪,被害人陷入证人的境地,国家成为唯一的诉讼主体。当代,虽然被害人普遍地被当作刑事诉讼的当事人,但是并不具有独立的诉讼主体地位,所以传统的刑事诉讼结构一直没有被害人的一席之地。现代刑事诉讼制度应当恢复刑事被害人的诉讼主体地位,并设计相应的制度充分保障刑事被害人诉讼主体地位的实现。     

Certainty of subject matter

The plaintiff alleged that the defendant had executed a declarationof trust in her favour in respect of 220,000 of the 1.5 m shareshe held in a certain company. The defendant resisted this claimthat there was a valid trust as the shares could not be identifiedand therefore there was no certainty to the subject matter. The Supreme Court of New South Wales (Equity Division), CampbellJ, considered the construction and the declaration