• Title/Summary/Keyword: Strontium

Search Result 404, Processing Time 0.023 seconds

The Diagnosis and Treatment of Osteoporosis (골다공증의 진단과 치료)

  • Moon, Jun-Sung;Won, Kyu-Chang
    • Journal of Yeungnam Medical Science
    • /
    • v.25 no.1
    • /
    • pp.19-30
    • /
    • 2008

  • Osteoporosis, a disease characterized by low bone mass and microarchitectural deterioration of bone tissue leading to enhanced bone fragility and fracture risk, is a major public health problem. The diagnostic methods for osteoporosis include simple radiography, bone scan, DXA (Dual energy X-ray Absortiometry) and biochemical markers of bone turnover. Optimal treatment and prevention of osteoporosis require modification of risk factors, particularly smoking cessation, adequate physical activity, and attention to diet, in addition to pharmacologic intervention. The estrogens and raloxifene both prevent bone loss in postmenopausal women, and the estrogens probably also decrease the risk of first fracture. There is good evidence that raloxifene prevents further fractures in postmenopausal women who already have had fractures and some evidence that estrogen does as well. Bisphosphonate prevents bone loss and reduces fractures in healthy and osteoporotic postmenopausal women and in osteoporotic men as well. Risedronate is more potent and has fewer side effects than alendronate and reduces the incidence of fractures in osteoporotic women. Calcitonin increases bone mineral density in early postmenopausal women and men with idiopathic osteoporosis, and also reduces the risk of new fractures in osteoporotic women. All of the agents discussed above prevent bone resorption, whereas teriparatide and strontium increase bone formation and are effective in the treatment of osteoporotic women and men. New avenues for targeting osteoporosis will emerge as our knowledge of the regulatory mechanisms of bone remodeling increases, although issues of tissue specificity may remain to be addressed.

  • PDF

Analytical Study of Polarization Spectroscopy for the Jg=0 → Je=1 Transition

  • Noh, Heung-Ryoul
    • Journal of the Optical Society of Korea
    • /
    • v.17 no.3
    • /
    • pp.279-282
    • /
    • 2013

  • This work presents a theoretical study on the analytical calculation of the lineshape of polarization spectroscopy (PS) for the transition line $5s^2\;^1S_0{\rightarrow}5s5p\;^1P_1$ of $^{88}Sr$. From the obtained analytical form of the PS spectrum, we were able to identify how the saturation affected the lineshape of the PS spectrum. The results obtained will be useful for polarization spectroscopy experiments using the alkaline-earth atoms such as Sr or Yb.

  • https://doi.org/10.3807/JOSK.2013.17.3.279 인용 PDF KSCI

Structure Refinement of $SrAl_{12}O_{19}$ Magnetoplumbite Using Energy Minimization Techniques

  • Park, Jae-Gwan;A.N. Cormack
    • Korean Journal of Crystallography
    • /
    • v.11 no.3
    • /
    • pp.173-175
    • /
    • 2000

  • Computational technique, based on the minimization of the crystal energy with respect to atomic coordinates, are shown to reproduce successfully complex crystal structure, in this case, strontium hexaaluminate magnetoplumbite, SrAl/sub 12/O/sub 19/. The experimental crystal structure and symmetry of the complex material is well reproduced with our potential models and some crystal physical properties are calculated.

  • PDF