While the literature dealing with the growth and function of the mammary gland is extensive, the mechanism determining the growth processes as well as secretion is incompletely known. Growth and function of the mammary gland are so closely interrelated with the cyclic changes of the uterus and ovaries that an understanding of the latter is a prerequisite for the former. During the last 10 years...

Prof. Arbini's at tention is flattering; his conclusions rather less so. The issues over which Arbini and I divide are many. Yet fundamentally, ! think, our differences may be traced to disagreement about the nature and promise of the theories produced by contemporary generative grammarians. It is here that I shall focus my attention. Some of the points at which Arbini aims his criticism are qu...

Heim, Appleman, and Pyfrom (1~) first showed that injection of the herbicide 3-amino-l,~,4triazole (AT) strikingly reduced the catalase activity of the liver, but not of the erythrocyte. This has since been amply confirmed (6, 13, 18), and it has been shown (6, 18) that AT per se is not an inhibitor of catalase but will, upon incubation in vitro, reduce the catalase activity of crude tissue pre...

The activity of a given virus-containing material is usually expressed in terms of minimal infective (X~.Ln.), or lethal, doses. Groups of test animals inoculated with material containing 1 ~r.I.D. per inoculum will show, on the average, 50 per cent positive results. A titration of material of unknown activity is simply an a t tempt to find this 50 per cent morbidity rate end point. In most ins...

Continuous exposure to an aversive mixture was investigated as a means of maintaining aversion to vermeerbos in sheep subjected to the social influence of non-averted sheep. The use of an aversive mixture was based on a hypothesis that continuous exposure to an acceptable aversive mixture (containing both the aversive substance and the identification factors of vermeerbos mixed with maize meal)...

The article describes an evaluation of a prototype for doing gamebased interactive advertisement campaigns in crowded public spaces using motion-sensing technology. The prototype was developed using OpenNi, XNA and Kinect, in which people who pass by a large display would be reflected on a large screen in the form of a silhouette and automatically become a part of a game. The goal of the game i...

Group buying websites are getting increasingly popular in the recent years. These websites typically work with merchants to offer group deals at attractive prices. They need a pre-determined minimum number of buyers for a deal before that deal is on. It is therefore important for marketers to understand how they can encourage consumers to buy these online group deals early. Using the right pers...

Dense, unmanaged 802.11 deployments tempt saboteurs into launching jamming attacks by injecting malicious interference. Nowadays, jammers can be portable devices that transmit intermittently at low power in order to conserve energy. In this paper, we first conduct extensive experiments on an indoor 802.11 network to assess the ability of two physical layer functions, rate adaptation and power c...

As someone who has been advocating “living beyond one’s means” since before the Reagan administration, I welcome Thomas’s endorsement of the idea. If we embrace the maxim that statistics is about variation then we should stand ready to explore how that variation varies with covariates. Assuming, as theory may tempt us to do, that covariates shift only the central tendency of the response, while...

L ongitudinal, multi-year cohort studies with large numbers of participants offer the only scientific possibility of clearly identifying the causes of childhood asthma (setting aside, for the moment, the difficulties in defining it). While the goal of these studies is clear, the exposure variables tested in them are often not well defined, and their main result is the generation of hypotheses w...