Bullying behaviour is a common experience for a significant minority of children and adolescents. Bullying is the sysematic abuse of power among peers or siblings (Sharp & Smith, 1994, p. 2; Wolke & Samara, 2004), with adverse effects n mental health in a significant number of victims (Stassen Berger, 2007). Physical bullying is characterised by observable, xternalised behaviours including bein...

someone exhibiting a familiar, if atavistic, male behaviour pattern? A pattern no doubt encouraged by the loss of will to impose discipline among post-war parents and educationalists. 1 would argue that he is in the last group. Such people form an element in any sample of humans. Wellington called them the scum of the earth and said he hoped they frightened the enemy as much as they frightened ...

W ith an estimated 10% to 15% of adults experiencing chronic tinnitus, most primary care physicians are familiar with this complaint. Th e prevalence of tinnitus increases with age and with exposure to high levels of noise—the most commonly reported cause. With people living longer and such “toxic” noise levels on the rise, tinnitus is a condition you can expect to encounter even more frequentl...

I was dismayed that the BMJ should publish the article "Alternative allergy and the GMC,"' which contained defamatory comments about me. It was an improper attempt to rerun a hearing of the General Medical Council in a prejudicial manner. I was found not guilty of all charges relating to my clinical standards, and it is wholly unacceptable to imply that the not guilty verdict ofany court is mis...

Mammalian GATA transcription factors are expressed in various tissues in a temporally regulated manner. The prototypic member, GATA-1, is required for normal erythroid, megakaryocytic, and mast cell development. This family of DNA-binding proteins recognizes a consensus (A/T)GATA(A/G) motif and possesses homologous DNA binding domains consisting of two zinc fingers. The C-terminal finger of GAT...

We demonstrate the tradeoffs between interpreting code in compact forms (such as the bytecoded method formats used in Smalltalk and Java), and direct execution of code (as in dynamic-translation Smalltalk and just-in-time Java compilers). Experiments with the interpreted Smalltalk language show that the widely held belief that direct execution is always faster than compact interpretation is not...

Validity of an Instrumental Variable Fan Yang, José R. Zubizarreta, Dylan S. Small, Scott Lorch, Paul R. Rosenbaum1 University of Chicago, University of Pennsylvania and Columbia University Abstract: An instrument or instrumental variable is often used in an effort to avoid selection bias in inference about the effects of treatments when treatment choice is based on thoughtful deliberation. Ins...

Priced oblivious transfer (POT) is a two-party protocol between a vendor and a buyer in which the buyer purchases digital goods without the vendor learning what is bought. Although privacy properties are guaranteed, current schemes do not offer fair exchange. A malicious vendor can, e.g., prevent the buyer from retrieving the goods after receiving the payment, and a malicious buyer can also acc...

In today’s distributed and heterogeneous systems, provenance data is becoming increasingly important for understanding process flow, tracing how outputs came about, and enabling users to make more informed decisions based on such outputs. However, within such systems, the sources (computational or human) that generate provenance may belong to different stakeholders operating under different pol...