clinical imaging and the new high field magnets entering clinical practice. Overall, this is a good text for those with a limited physics background who are in need of grounding in MR physics. It will be of benefit to technologists as well as radiology fellows. If read from cover to cover, it will reward the reader with an understanding of the principles underpinning nuclear magnetic resonance....

T HIS iS .A very interesting book. It is divided into two main sections one on the tubercle bacillus and one on laborator-y methods. The section on the tubercle bacillus gives a most interesting and comprehensive survey of the great amount of wvork that has been done on the characteristics of the organism-its mo)rphology, the cultural characteristics of its various types, its pathogenicity for ...

treatment temperature increased, especially at temperatures in excess of 450~ However, the strength decreases were small (less than 15%), and the concrete strength was still within typical values for structural concrete. The leachability tests showed that as treatment temperature was increased, levels of PAHs in the soil significantly decreased. From the leachability tests performed on samples ...

The diagnosis of HIV-1 infection in infants and children continues to present challenges. Currently available virologic assays are sensitive and specific and allow early detection of perinatally acquired HIV infection. Identification soon after birth allows for the rapid initiation of antiretroviral therapy and preservation of the infant's immune system. Serologic diagnostic methods, including ...

Methods and Treatment Hongfei Duan1; Zihui Li2; Xiaojing Zheng2; Zongde Zhang2; Naihui Chu1 1Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Department of Tuberculosis 2Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Key Laboratory for Drug Resistant Tuberculos...

Methylmalonic acidemia (MMA) is usually caused by a deficiency of the enzyme methylmalonyl-CoA mutase (MCM), a defect in the transport or synthesis of its cofactor, adenosyl-cobalamin (cblA, cblB, cblC, cblF, cblD, and cblX), or deficiency of the enzyme methylmalonyl-CoA epimerase. A comprehensive diagnostic approach involves investigations of metabolites with tandem mass spectrometry, organic ...

We describe the current state of a resource that enables research in the human sciences with differential access rights for experimenters and participants in experiments. We outline advantages and foibles of Internet-based research – problems and solutions in sampling, for example. The functionality of the system from the three user views is presented: administrator, experimenter and participan...