Chung-Ang University

About: Chung-Ang University is a education organization based out in Seoul, South Korea. It is known for research contribution in the topics: Population & Thin film. The organization has 13381 authors who have published 26978 publications receiving 416735 citations. The organization is also known as: CAU & Chung.

Population structure of the Bacillus cereus group as determined by sequence analysis of six housekeeping genes and the plcR gene

Abstract: The population structure of the Bacillus cereus group (52 strains of B. anthracis, B. cereus, and B. thuringiensis) was investigated by sequencing seven gene fragments (rpoB, gyrB, pycA, mdh, mbl, mutS, and plcR). Most of the strains were classifiable into two large subgroups in six housekeeping gene trees but not in the plcR tree. In addition, several consistent clusters were identified, which were unrelated to species distinction. Moreover, interrelationships among these clusters were incongruent in each gene tree. The incongruence length difference test and split decomposition analyses also showed incongruences between genes, suggesting horizontal gene transfer. The plcR gene was observed to have characteristics that differed from those of the other genes in terms of phylogenetic topology and pattern of sequence diversity. Thus, we suggest that the evolutionary history of the PlcR regulon differs from those of the other chromosomal genes and that recombination of the plcR gene may be frequent. The homogeneity of B. anthracis, which is depicted as an independent lineage in phylogenetic trees, is suggested to be of recent origin or to be due to the narrow taxonomic definition of species.

Is Surgery Necessary for Femoral Insufficiency Fractures after Long-term Bisphosphonate Therapy?

Abstract: Background Prolonged use of bisphosphonates in patients with osteoporosis reportedly induces femoral insufficiency fractures. However, the natural course of these fractures and how to treat them remain unknown.

Multiple Pass Ultrasound Tightening of Skin Laxity of the Lower Face and Neck

Abstract: BACKGROUND Skin laxity is a common complaint of patients who request skin rejuvenation. Radiofrequency and infrared light are widely used for nonablative treatment of skin laxity. Intense focused ultrasound (IFUS) has been investigated as a tool for the treatment of solid benign and malignant tumors for many decades but is only now beginning to emerge as a potential noninvasive alternative to conventional nonablative therapy. OBJECTIVES To evaluate the efficacy of IFUS for the treatment of face and neck laxity. METHODS Twelve female volunteers were enrolled in the study, and 10 were ultimately evaluated. The device under investigation was an IFUS. Areas treated included the face and neck. For treatment, the 4-MHz, 4.5-mm probe was used first, followed by the 7-MHz, 3.0-mm probe. Two blinded, experienced clinicians evaluated paired pretreatment and post-treatment (day 90) photographs. Patient self-assessments were also obtained. RESULTS On the first primary outcome measure, two blinded clinicians felt that 8 of 10 subjects (80%) showed clinical improvement 90 days after treatment. Nine of 10 subjects (90%) reported subjective improvement.

Does China follow “the East Asian development model”?

Abstract: The Chinese way of development shares many characteristics with the East Asian developmental state model. Key elements of this shared development model include state control over finance, direct support for state owned enterprises by the government, import substitution industrialisation in heavy industry, a high dependence on export markets and a high rate of domestic savings. Even the reform of corporate governance is not likely to change the basic features of the East Asian model in China. Among East Asian countries, China shares more similar characteristics with Taiwan rather than with Japan or Korea since China, like Taiwan, also has an economy of dual structure that divides the public and non-public sectors.