The quantification of the achievements of public health in history is certainly alive. But is it well? The arrival of these two volumes provides an opportune moment to assess the contribution made by historical demography to our understanding of the medical historical world. In some ways it is remarkable that a book adorned with the title The demography of Victorian England and Wales took so lo...

Most of studies on the video communications are based on an unproved hypothesis: They take it granted that the full-face images of communicators are the 'sine qua non' in video conversations, and profiles are rather confusing or annoying for them. This paper proves the counter hypothesis that profile images are also useful and they can replace the full-faces under some conditions. Psychological...

We carried out a randomized controlled trial in Bogotá, the recipient of Colombia's highest number of internally displaced people (IDP), to assess whether the use of SMS to communicate eligibility to social benefits fosters the welfare of victimized internal refugees. Only a fraction of IDP are eligible to benefits. We inform eligibility via SMS to a random half of such households, and estimate...

T elimination of health disparities in the United States is a national priority and overriding goal for Healthy People 2010 (HP 2010). Surveillance of health indicators among minority populations is essential to eliminating disparities. Surveillance is critical for program planning, policy making, evaluating population-based strategies, and tracking progress toward national and state objectives.

This paper discusses five examples of the conventional wisdom that has often been expressed in the social security debate, even among academic economists. These are: 1. The major problem in most social security systems is that of demography: people simply live too long. 2. Disregarding the issue of demography, a Pay-As-You-Go system is inferior to a fully funded system since the former usually ...

Abstract: Some people automatically and involuntarily ”see” mental images of numbers in spatial arrays when they think of numbers. This phenomenon, called number forms, shares three key characteristics with the other types of synaesthesiae, within-individual consistency, between-individual variety, and mixture of regularity and randomness. An experiment was conducted to investigate whether ment...

Over the years a number of powerful people detectors have been proposed. While it is standard to test complete detectors on publicly available datasets, it is often unclear how the di erent components (e.g. features and classi ers) of the respective detectors compare. Therefore, this paper contributes a systematic comparison of the most prominent and successful people detectors. Based on this e...

In this paper we give a new approach to the concepts of glyph and character, applied to the study of the Unicode encoding. After a thorough discussion of these two concepts, we describe the other fundamental ingredients of the encoding: privileged glyphs, character descriptions, combining characters, and properties. In each case we try to show the importance of the given notion and at the same ...