Reports on children presenting symptoms compatible with the chronic phase of Chagas disease are sporadic. We report a case of a 7-year-old boy who had megaesophagus and megacolon, both of them a consequence of the trypanosomiasis. The etiology was established by means of laboratory and histological features. Based on epidemiological data, the authors concluded that vertical transmission was the...

background: in general, measurements of solar ultraviolet (uv) radiation are related to horizontal surfaces. while the hu­mans walking and standing outdoors expose to the natural solar uv radiation, their eyes, cheeks, extremities, trunks, or many other anatomical sites are close to vertical plane and random orient to different directions. in this study, we character­ized the diurnal variations...

Scene is a flexible system in which users can produce monolithic systems or "unix style" piped systems consisting of a number of components each providing one operation. They can also use either of the two standalone systems provided. The software has been developed on a Sun 3/50 system miming SunOS 3.5. It is written in C and, apart from the display and device specific functions, would be easi...

The idea of the student issue. The future of Interval Computations is with the student researchers entering the field. Their vision, their insights, their approaches will shape the future research. To highlight their contributions, the Editorial Board of the International Journal Interval Computations (since 1995, Reliable Computing) decided to make a special issue with high-quality papers writ...

A framework is proposed that develops the dimensions of vertical integration strated and proposes key factors that might augment their uses within various scenarios. These represent new hypotheses and conjectures about make-or-buy decisions that require empirical testing. If the framework is valid, strategists could formulate better hybrid vertical integration strategies by recogniang the hypot...

Buttons & Scissors is a popular single-player puzzle. A level is played on an n-by-n grid, where each position is empty or has a single coloured button sewn onto it. The player’s goal is to remove all of the buttons using a sequence of horizontal, vertical, and diagonal scissor cuts. Each cut removes all buttons between two distinct buttons of the same colour, and is not valid if there is an in...

Interval temporal logics provide both an insight into a nature of time and a framework for temporal reasoning in various areas of computer science. In this paper we present sound and complete relational proof systems in the style of dual tableaux for relational logics associated with modal logics of temporal intervals and we prove that the systems enable us to verify validity and entailment of ...

Male-killing bacteria are bacteria that are transmitted vertically through the females of their insect hosts. They can distort the sex ratio of their hosts by killing infected male offspring. In nature, male-killing endosymbionts (male killers) often have a 100% efficient vertical transmission, and multiple male-killing bacteria infecting a single population are observed. We use different model...