This section looks back to some ground-breaking contributions to public health, reproducing them in their original form and adding a commentary on their significance from a modern-day perspective. Robyn M. Lucas and Anthony J. McMichael review The environment and disease: association or causation? by Sir Austin Bradford Hill on establishing relationships between illness and conditions of work o...

This section looks back to some ground-breaking contributions to public health, reproducing them in their original form and adding a commentary on their significance from a modern-day perspective. In this month’s Bulletin, Professor Kenneth Hill reviews the 1984 paper by W. Henry Mosley and Lincoln C. Chen on their proposal for a new analytical framework for the study of child survival determin...

and the plain, the traveller was warned to traverse it at speed, and to beware of loitering even a single night within its limits, at the peril of a deadly jungle fever. Referring specially to that length of the Terai which fringes the Darjeeling hills, I have 110 difficulty in understanding how it came by its bad name. The vegetation, which covers the hill-sides, runs uninterruptedly into the ...

In Summer 2007, we field-tested a robotic survey system at Haughton Crater (Devon Island, Canada). Two NASA Ames K10 planetary rovers performed systematic surveys of several simulated lunar sites, including a roughly 700m x 700m region called Drill Hill. The rovers carried a 3D scanning lidar for topographic mapping and ground penetrating radar to map subsurface structure. In this paper, we des...

a r t i c l e i n f o Shimla is one of the 80 hill stations which were established on preferred locations during British rule in India. It is the summer capital of pre-independent India, planned and developed for a maximum population of 25,000 in a picturesque hill setting. Presently, Shimla is capital of the state of Himachal Pradesh, one of the most preferred tourist destinations in the count...

The Colorado wild potato (Solanum jamesii) is the only species among more than 100 different kinds of plants that the writer (6) has irradiated in which a plant organ has made greater growth leading to increased weight as a result of the treatment. The growth and development of the underground parts of 22 species (7) exposed to medium doses showed detrimental effects to adventitious, fibrous, a...

Although the presence of leukemic infiltrate in isolated organs of patie~ts \\'ith chronic lymphocytic leukemia has been reported. the effects of leukemic infiltration into v!rious organs of such patients have never been comprehensively studied. To determine the effects of leukemic infiltration \ve reviewed the histologic sections of multiple organs in 47 cases of chronic lymphocytic leukemia a...

In 4 experiments, the authors varied the extent and nature of participant movement in a virtual environment to examine the influence of action on estimates of geographical slant. Previous studies showed that people consciously overestimate hill slant but can still accurately guide an action toward the hill (D. R. Proffitt, M. Bhalla, R. Gossweiler, & J. Midgett, 1995). Related studies suggest t...

objective: in recent years, farmers have shown great interest to using native drill planter rather than complex planters to grow vegetables. methods: in this study, we tested a native planter independent variables were the two types of substrate surface (asphalt and plowed field), three ground speed (3, 5 and 7 kph) and four types of seeds (tomatoes, onions, radishes and lettuce). dependent var...