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Institution

Pusan National University

EducationBusan, South Korea
About: Pusan National University is a education organization based out in Busan, South Korea. It is known for research contribution in the topics: Population & Catalysis. The organization has 24124 authors who have published 45054 publications receiving 819356 citations. The organization is also known as: Busan National University & Pusan University.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the spillover effect between the U.S. market and five of the most important emerging stock markets namely those of the BRICS (Brazil, Russia, India, China and South Africa), and draws implications for portfolio risk modeling and forecasting.

151 citations

Journal ArticleDOI
TL;DR: The findings indicate that a 12-week moderate-intensity combined circuit RE and EE training improves arterial stiffness, hemodynamics, and muscle strength in previously sedentary postmenopausal women.
Abstract: Objective: Menopause is associated with increased arterial stiffness and reduced muscle strength. Combined resistance (RE) and endurance (EE) exercise training can decrease brachial-ankle pulse wave velocity (baPWV), an index of arterial stiffness, in young men. We tested the hypothesis that combined circuit RE and EE training would improve baPWV, blood pressure (BP), and muscle strength in postmenopausal women. Methods: Twenty-four postmenopausal women (age 47-68 y) were randomly assigned to a Bno exercise[ control (n = 12) or to combined exercise training (EX; n = 12) group. The EX group performed concurrent circuit RE training followed by EE training at 60% of the predicted maximal heart rate (HR) 3 days per week. Brachial systolic BP, diastolic BP, mean arterial pressure, baPWV, HR, and dynamic and isometric muscle strength were measured before and after the 12-week study. Results: Mean T SE baPWV (j0.8 T 0.2 meters/s), systolic BP (j6.0 T 1.9 mm Hg), diastolic BP (j4.8 T 1.7 mm Hg), HR (j4.0 T 1.0 beats/min), and mean arterial pressure (j5.1 T 1.6 mm Hg) decreased (P G 0.05), whereas dynamic leg strength (5.1 T 1.0 vs 0.6 T 1.0 kg for the EX and control groups, respectively) and isometric handgrip strength (2.8 T 0.7 vs j0.6 T 1.2 kg) increased (P G 0.05) in the EX group but not in the control group. Conclusions: Our findings indicate that a 12-week moderate-intensity combined circuit RE and EE training improves arterial stiffness, hemodynamics, and muscle strength in previously sedentary postmenopausal women. This study provides evidence that combined training may have important health implications for the prevention of hypertension and frailty in postmenopausal women.

151 citations

Journal ArticleDOI
TL;DR: Three existing endoscopic scoring systems and a newly proposed modified scoring system for the assessment of patients with chronic rhinosinusitis (CRS) are compared.
Abstract: Objectives/Hypothesis To compare three existing endoscopic scoring systems and a newly proposed modified scoring system for the assessment of patients with chronic rhinosinusitis (CRS). Study Design Blinded, prospective cohort study. Methods CRS patients completed two patient-reported outcome measures (PROMs)—the visual analogue scale (VAS) symptom score and the Sino-Nasal Outcome Test-22 (SNOT-22)—and then underwent a standardized, recorded sinonasal endoscopy. Videos were scored by three blinded rhinologists using three scoring systems: the Lund-Kennedy (LK) endoscopic score; the Discharge, Inflammation, Polyp (DIP) score; and the Perioperative Sinonasal Endoscopic score. The videos were further scored using a modified Lund-Kennedy (MLK) endoscopic scoring system, which retains the LK subscores of polyps, edema, and discharge but eliminates the scoring of scarring and crusting. The systems were compared for test-retest and inter-rater reliability as well as for their correlation with PROMs. Results One hundred two CRS patients were enrolled. The MLK system showed the highest inter-rater and test-retest reliability of all scoring systems. All systems except for the DIP correlated with total VAS scores. The MLK was the only system that correlated with the symptom subscore of the SNOT-22 in both unoperated and postoperative patients. Conclusions Modification of the LK system by excluding the subscores of scarring and crusting improves its reliability and its correlation with PROMs. In addition, the MLK system retains the familiarity of the widely used LK system and is applicable to any patient irrespective of surgical status. The MLK system may be a more suitable and reliable endoscopic scoring system for clinical practice and outcomes research. Level of Evidence 4 Laryngoscope 124:2216–2223, 2014

151 citations

Journal ArticleDOI
TL;DR: In this paper, the authors review how the wide range of morphologies and functionalities that have been prepared to date make PMOs desirable for numerous and varied practical applications, such as catalysis and drug delivery to the sorption of guest molecules and optoelectronics.
Abstract: In recent years, incorporating organic functionalities into inorganic materials has emerged as an efficient strategy for constructing a variety of functional materials. Periodic mesoporous organosilicas (PMOs) were one of the first such classes of composites to be developed. Grafting organic moieties within the channel walls of porous silicas — to act as bridges between neighboring silicon atoms — enables the tuning of their bulk properties, such as mechanical strength, or their surface characteristics — hydrophilicity, hydrophobicity or guest-binding abilities, for example. Chang-Sik Ha and colleagues from Pusan National University, South Korea, review how the wide range of morphologies and functionalities that have been prepared to date make PMOs desirable for numerous and varied practical applications. These hybrid materials have proven attractive for applications ranging from catalysis and drug delivery to the sorption of guest molecules and optoelectronics.

151 citations


Authors

Showing all 24296 results

NameH-indexPapersCitations
Hyun-Chul Kim1764076183227
Taeghwan Hyeon13956375814
George C. Schatz137115594910
Darwin J. Prockop12857687066
Mark A. Ratner12796868132
Csaba Szabó12395861791
David E. McClelland10760272881
Yong Sik Ok10285441532
C. M. Mow-Lowry10137866659
I. K. Yoo10143732681
Haijun Yang10040335114
Buddy D. Ratner9950135660
Dong Jo Kim9849736272
Shuzhi Sam Ge9788340865
B. J. J. Slagmolen9634962356
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202391
2022302
20213,260
20203,069
20193,039
20182,718