Observations of the beam-beam interaction at SPEAR, CESR, PETRA and PEP are discussed. They are sufficiently similar that a simple prescription can be formulated to describe the behavior of the luminosity as a function of current including the peak values. With this prescription the interpretation of various methods of increasing the luminosity, such as the reduction of the vertical betatron fu...

All accretion models of gamma-ray bursts share a common assumption: accretion power and gravitational binding energy is released and then dissipated locally, with the mass of its origin. This is equivalent to the Shakura-Sunyaev 1973 (SS73) prescription for the dissipation of accretion power and subsequent conversion into radiate output. Since their seminal paper, broadband observations of quas...

This study estimates the impact of patient financial incentives on the use and cost of prescription drugs in the context of differing physician payment mechanisms. A large data set was developed that covers persons in managed care who pay varying levels of cost sharing and whose physicians are compensated under two different models: independent practice association (IPA)-model and network-model...

introduction: diseases of the dental pulp and periapical tissues are chiefly caused by microorganisms. antibiotics are used in some endodontic cases; however, successful cases can predominantly be achieved by mechanical and chemical cleaning of the canal or surgical intervention. materials & methods: the aim of this study was to determine the knowledge of general dental practitioners (gdps) in ...

OBJECTIVE Appropriate use of antibiotics in the management of hospitalised patients with COPD exacerbations is defined within the GOLD strategy. This paper analyses the factors associated with antibiotic prescribing in patients to better understand how prescribing may be improved. METHODS The European COPD audit was a study of clinical care in 384 hospitals from 13 European countries between ...

This article examined the physician-patient agency relationship in the context of the prescription drug market in Japan. In this market, physicians often both prescribe and dispense drugs and can pocket profits in so doing. A concern is that, due to the incentive created by the mark-up, physicians' prescription decisions may be distorted. Empirical results using anti-hypertensive drugs suggest ...

Cognitive variables relating to both the healthand non-health-related consequences of smoking among 178 heavy, light, and nonsmoking college women were examined. Using Ajzen and Fishbein's (1980) theory of reasoned action, salient behavioral beliefs about the positive and negative outcomes of smoking, evaluations of these outcomes, salient normative beliefs about the prescriptions of important ...

Ethical perspectives on the use of stimulants to enhance human cognitive performance (neuroenhancement) are polarized between conservative and liberal theories offering opposing advice on whether individuals have a right to use neuroenhancers and what the social outcomes of neuroenhancement might be. Meanwhile, empirical evidence shows modest prevalence and guarded public attitudes toward the n...

OBJECTIVES To analyse the performance of the English Stop Smoking Services from 2001/02 to 2010/11. DESIGN Analysis of national service monitoring data. SETTING England. PARTICIPANTS Smokers recorded as having been treated by English stop smoking services between April 2001 and March 2011. MAIN OUTCOME MEASURES Annual figures for the number of quit dates set (throughput), the percentage...

OBJECTIVE To describe the ways in which patients taking antihypertensive drugs balance reservations against reasons for taking them. DESIGN Qualitative study using detailed interviews. SETTING Two urban general practices in the United Kingdom. PARTICIPANTS Maximum variety sample of 38 interviewees receiving repeat prescriptions for antihypertensives. MAIN OUTCOME MEASURES Interviewees' ...