The discrimination of fluid content and lithology in a reservoir is an important characterization that has a bearing on reservoir development and its management. For the unconventional reservoirs, such as shale gas formations, besides other favorable considerations that are expected of them, it is vital that reservoir zones are brittle. Brittle zones frac better and fracing of shale gas reservo...

Mittlefehldt, R. Gellert, K. E. Herkenhoff, R. V. Morris, B. C. Clark, B. A. Cohen, I. Fleischer, B. L. Jolliff, G. Klingelhöfer, D. W. Ming, R. A. Yingst and the Athena Science Team, NASA/JSC, Houston, TX USA ([email protected] ), Univ. Guelph, Guelph, ON CA, USGS, Flagstaff, AZ USA, SSI, Boulder, CO USA, NASA/MSFC, Huntsville, AL USA, Johannes Gutenberg-Univ., Mainz, DE, Washingto...

Fluoroquinolones were discovered in the 1960s as a derivative of the antimalarial drug chloroquine. Over the past 40 years, many fluoroquinolones have been developed for use in human and veterinary medicine. As with all classes of antibiotics, resistance to fluoroquinolones is a serious concern, and multiple avenues for resistance are being investigated. Resistance-associated point mutations in...

The themes presented in this Presidential address are introduced through masterpieces of medicine in art from the very earliest depictions to the modern day. The representations of medicine in art provide a commentary on the place of medicine in society and how it was viewed by society. Some artists used their work both to highlight important health issues of the time and as a " propaganda " to...

Recently developed methods for inferring abrupt changes in data series enable such change points in time or space to be identified, and also allow us to estimate noise levels of the observed data. The inferred probability distributions of these parameters provide insights into the capacity of the observed data to constrain the geophysical analysis and hence the magnitudes, and likely sources, o...

My third year of medical school, and I have finally begun my training. I am slowly learning to be a surgeon. I will open you up and search through the detritus of sickness, extirpate what is necessary, and leave in my wake a health of my own creation. There is power in that; a power that I have already glimpsed. Reaching out and calmly saying, "knife." Deliberately moving the scalpel across the...

In This Issue In This Issue Initiate then elongate tudies on yeast have provided significant insights into eukaryotic DNA replication, but it has been difficult to examine the process in more complex organisms. On page 225, Claycomb et al. have taken advantage of a peculiar aspect of insect biology to develop a new model for studying metazoan DNA replication, and have already made one surprisin...