Manufacturers of commercial display devices continuously try to improve the perceived image quality of their products. By applying some post processing techniques on the incoming image signal, they aim to enhance the quality level perceived by the viewer. Applying such techniques may cause side effects on different portions of the processed image. In order to apply these techniques effectively ...

Heterogeneous Treatment Effects: Instrumental Variables without Monotonicity? A fundamental identification problem in program evaluation arises when idiosyncratic gains from participation and the treatment decision depend on each other. Imbens and Angrist (1994) were the first to exploit a monotonicity condition in order to identify an average treatment effect parameter using instrumental varia...

lll

ur aim was to provide a better understanding of why many adults fail to receive recom mmunizations. Consumers (N 2,002) and healthcare providers (N 200) completed structured elephone interviews concerning their attitudes and knowledge about adult vaccines and factors af heir vaccination decisions. Self-reported immunization rates for tetanus, influenza, and pneumoc accines (which were emphasize...

Recent work shows that both reward and punishment systems increase short-term cooperation in social dilemmas. Yet, a growing body of research finds that punishment systems generate a range of negative side effects, including an undermining of trust in fellow group members’ cooperative intentions. The present work asks whether reward systems can generate the same positive effects as punishment s...

Nowadays, urban environments suffer from recurrent traffic jam with associated side effects. Platoon system, a set of vehicle attach by virtual link, is one of answer. in order to cope with issues such as different platoon geometrics since several years, we’re seeing the multi-agent system as element of response to many problems. This paper to apply this concept for platoon vehicles system thro...

162 Journal of Family Planning and Reproductive Health Care 2003: 29(3) Background Inevitably there are limited long-term safety data for any new contraceptive method. Detailed scientific studies, performed in a small number of women, provide evidence on mode of action. Larger clinical trials examine efficacy, side effects and acceptability. The number of women-years of exposure is less than fo...

Phase IV of clinical trials also named post marketing studies or real world trials, are useful to better understand the true efficacy of medicines. Phase IV could improve scientific knowledge i.e. side effects, use of a drug in special conditions, better precision of the dosage. But some studies are more designed for economic purposes facilitating product promotion. So there are several kinds o...

Fly prevention and control on animal production units is necessary to prevent the transmission of pathogens that could affect animal and human health and the maintenance of good hygiene. Organic farmers are often hesitant to apply insecticides for this purpose because of their farming philosophy. Organic production systems are relatively open as pigs generally have access to the outdoors. Here,...

Our purpose is to study the efficacy of the alexandrite laser (755 nm) and the fractional laser when treating pigmentary lesions .We use the data of our private office of the last five years (2011-2015) We treated 1000 patients with freckles with alexandrite laser, 200 patients with melasma with fractional laser, 100 patients with post inflammatory hyperpigmentation with alexandrite laser and 6...