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Correlation Between Testosterone Replacement Treatment and Lower Urinary Tract Symptoms
이민호,신유섭,감성철 대한배뇨장애요실금학회 2021 International Neurourology Journal Vol.25 No.1
Lower urinary tract symptoms (LUTS) are a cluster of voiding symptoms, such as weak stream, hesitancy, intermittency, urinary frequency, urgency, and nocturia. LUTS are frequent in elderly men and it considered the ultimate clinical symptoms of benign prostatic hyperplasia. With aging, male hypogonadism is increased which is defined as decreased ability of the testes to produce sperm and sex steroids because of a pituitary/hypothalamic, or testicular deficiency. In academic andrology associations, the term “male hypogonadism” is commonly used to categorize testosterone deficiency. Testosterone deficiency syndrome (TDS) is defined as a decrease in serum testosterone accompanied by symptoms such as libido decrease, depressive disorder, erectile dysfunction, and fatigue. Although the mechanism about testosterone-replacement therapy (TRT) effects on men with hypogonadism is not yet identified, TRT has been shown to effectively relieve the symptoms of TDS as well as LUTS by several studies. Although the present review demonstrates the effectiveness and safety of TRT in men with TDS by prior studies, future large scale of clinical trials should be conducted to present more high-quality evidence to clinicians and patients.
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이민호,조형래 한국산업경영시스템학회 2009 한국산업경영시스템학회지 Vol.32 No.3
The proliferation of the internet and electronic commerce has given the manufacturers the opportunity of direct marketing. This study analyzes the decision of manufacturers regarding whether to sell the products through independent sales company or to sell the products to the consumer directly. To do this, a new demand function is proposed and sub and super games are modeled and analyzed based on the demand function. By analyzing the Nash equilibria, it is shown that the manufacturers' decision of direct or indirect marketing not only depends on the competitiveness between the products but the absolute and relative marketing capabilities of the manufacturers. It is also shown that, in some cases, the manufactures have incentive to rise the competitiveness between the products to maximize the channel profit.
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Scattering Matrix Formulation of the Total Photoionization of Two-electron Atoms
이민호,최낙렬 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.56 No.6
A rigorous derivation of an exact quantum-mechanical formula is presented for the total pho-toionization of two-electron atoms in terms of local scattering matrices that describe local dynamics separately in the inner and the outer parts of a surface dividing the whole con¯guration space. The exact formula is a correct extension of a previously known formula that misses the contribution of the channels closed at the dividing surface. The validity of semiclassical treatments of the outer part can be examined by evaluating the contribution of channels closed at the dividing surface.
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