Osteoporosis is a multifactorial disease characterized by a decrease in bone mass and deterioration of bone architecture. Genetic factors are determinants of peak bone mass and may influence age-related decreases of bone mass. WHO has established an operational criterion based on bone density measuring, the T-score. 122 cases were studied, 51 diagnosed with primary osteoporosis. Mean age was 57...

This article reviews the dual-energy x-ray absorptiometry (DXA) technique, its interpretation, and clinical applications with emphasis on the considerations unique to pediatrics. Specifically, the use of DXA in children requires the radiologist to be a “clinical pathologist,” monitoring the technical aspects of the DXA acquisition, a “statistician” knowledgeable in the concepts of Z-scores and ...

The applications of Dual-energy X-ray Absorptiometry (DXA) to vertebrate research and veterinary practice are many. DXA has been used successfully to rapidly and non-invasively quantify bone density and body composition in a variety of animals. The use of DXA has been limited, primarily, to basic and applied research, but DXA technology has great promise for clinical practice involving animals....

Chiyoko Usui1,2, Motoko Taguchi3, Kazuko Ishikawa-Takata4 and Mitsuru Higuchi5 1Department of Health Promotion and Exercise, National Institute of Health and Nutrition, 2Research Fellow of the Japan Society for the Promotion of Science, 3Japan Women’s College of Physical Education, 4Department of Nutritional Education, National Institute of Health and Nutrition, 5Faculty of Sport Sciences, Wase...

The aim of this research is to determine the possible solar energy storage in the norbornadiene (1) / quadricyclane (2) system, through involving steric effects on various position of carbon C1, C2 or C7 for 1 and 2; calculating the corresponding energies at B3LYP/6-311G** level of theory. The extent of the solar energy storage is the least for 11-i-Pr (-21.018), 12-t-Bu (-22.525) and 17-i-Pr (...

MARJOLEIN VISSER,1,2 THOMAS FUERST,3 THOMAS LANG,3 LORAN SALAMONE,4 AND TAMARA B. HARRIS1 FOR THE HEALTH, AGING, AND BODY COMPOSITION STUDY— DUAL-ENERGY X-RAY ABSORPTIOMETRY AND BODY COMPOSITION WORKING GROUP 1Epidemiology, Demography and Biometry Program, National Institute on Aging, Bethesda, Maryland 20892; 2Institute for Research in Extramural Medicine, Faculty of Medicine, Vrije Universite...

Photon-enhanced thermionic emission (PETE) converts sunlight to electricity with the combined photonic and thermal excitation of charge carriers in a semiconductor, leading to electron emission over a vacuum gap. Theoretical analyses predict conversion efficiency that can match, or even exceed, the efficiency of traditional solar thermal and photovoltaic converters. Several materials have been ...

The importance of food in health promotion and disease prevention is well known. The aims of our study were to evaluate the daily energy intake of an adult group;

In this study, MIE values measured with two different explosion tubes, HARTMANN and MIKE 3, are compared. Generally, MIKE 3 apparatus provides MIE results, which are equal or lower to those measured with the HARTMANN apparatus; this is particularly true for the energy ranges between 1 and 10mJ and higher than 100mJ. Differences observed can modify samples classification according to their sensi...

After a short introduction to solar neutrino physics, this paper describes the conceptual design and expected performance of the BOREXINO underground detector at Gran Sasso. Low background results from the Counting Test Facility, the rst phase of the BOREXINO project, are summarized. Indicative sensitivities to non-standard neutrino physics scenarios are presented.