Search results for: Heon Kang

Items from 1 to 20 out of 100 results

article

Risk assessment of dorsal scapular nerve injury in the medial scapular area associated with upper extremity position: An ultrasonographic study

Byung Heon Kang, Dae Wook Lee, Seok Kang, Joon Shik Yoon

Introduction/Aims Injuries to the dorsal scapular nerve (DSN) in the interscapular region are relatively uncommon. Physicians may therefore underestimate the risk of damage to the DSN during procedures. The aim of this study was to identify the topographic position of the DSN in the interscapular region and to identify injection positions for the upper extremities that minimize the risk of damage...

article

Gaps to bridge: Misalignment between perception, reality and actions in obesity

Ian D. Caterson, Assim A Alfadda, Pernille Auerbach, Walmir Coutinho, more

Diabetes, Obesity and Metabolism > 21 > 8 > 1914 - 1924

Aims Despite increased recognition as a chronic disease, obesity remains greatly underdiagnosed and undertreated. We aimed to identify international perceptions, attitudes, behaviours and barriers to effective obesity care in people with obesity (PwO) and healthcare professionals (HCPs). Materials and methods An online survey was conducted in 11 countries. Participants were adults with obesity...

article

Non-dimensional simple beam models for the elastic forces in ANCF: 3D equation and simulation

Ji-Heon Kang, Wan-Suk Yoo, Kun-Woo Kim

Journal of Mechanical Science and Technology > 2018 > 32 > 8 > 3899-3914

Absolute nodal coordinate formulation can be used to represent large displacement and large deformation in flexible body analysis based on the concept of continuum mechanics. However, the analysis takes a long time because of the increase in the degrees of freedom at a nodal point. In this study, the analysis time was reduced by using non-dimensional variables for the time, length, and force to convert...

article

The Nature of Hydrated Protons on Platinum Surfaces

Youngsoon Kim, Chanwoo Noh, YounJoon Jung, Heon Kang

Chemistry – A European Journal > 23 > 69 > 17566 - 17575

The nature of hydrated protons formed at water/metal interfaces is one of the most intriguing research questions in the field of interfacial chemistry. We prepared coadsorption layers of hydrogen and water on a Pt(111) surface in ultrahigh vacuum and studied the ionization of adsorbed hydrogen atoms to H⁺ ions by employing a combined experimental and theoretical approach. Spectroscopic evidence obtained...

article

Association of circulating irisin levels with metabolic and metabolite profiles of Korean adolescents

Han Byul Jang, Hyo-Jin Kim, Jae Heon Kang, Sang Ick Park, more

Metabolism > 2017 > 73 > C > 100-108

Irisin, a novel exercise-induced myokine, has been suggested to regulate energy metabolism.We studied the relationship between circulating irisin and metabolic and metabolite profiles of Korean adolescents, and investigated the effects of physical activity, obesity, and metabolic syndrome (MetS) on irisin levels.Data were obtained from the Korean Children–Adolescents Study. Our cross-sectional study...

article

Effect of a herbal extract powder (YY-312) from Imperata cylindrica Beauvois, Citrus unshiu Markovich, and Evodia officinalis Dode on body fat mass in overweight adults: a 12-week, randomized, double-blind, placebo-controlled, parallel-group clinical trial

Young-Gyu Cho, Ji-Hye Jung, Jae-Heon Kang, Jin Soo Kwon, more

BMC Complementary and Alternative Medicine > 2017 > 17 > 1 > 1-10

Background YY-312 is a herbal extract powder from Imperata cylindrica Beauvois, Citrus unshiu Markovich, and Evodia officinalis Dode, which have health promoting effects, including body fat reduction. We aimed to evaluate the efficacy and safety of YY-312 for body fat reduction in overweight adults. Methods This was a 12-week, randomized, double-blind, placebo-controlled, parallel-group clinical...

article

Reduced graphene oxide as a protection layer for Al

Haneul Jang, Jae-Hun Kim, Heon Kang, Donghyun Bae, more

Applied Surface Science > 2017 > 407 > C > 1-7

This study proposes a facile solution process to generate a reduced graphene oxide (rGO) protection layer on Al, in which polyvinyl alcohol (PVA) is used to enhance interfacial bonding between Al and rGO. A multi-level analysis indicated that PVA-aided coating induced numerous conjugations between Al and rGO by producing a large number of hydroxyl groups on the Al surface. The Al plate directly coated...

article

Liquid-type Botulinum Toxin Type A in Adductor Spasmodic Dysphonia: A Prospective Pilot Study

Wonjae Cha, Jeon Yeob Jang, Soo-Geun Wang, Ji-Heon Kang, more

Journal of Voice > 2017 > 31 > 3 > 378.e19-378.e24

Botulinum toxin (BTX) has been widely used to treat adductor spasmodic dysphonia (ADSD). Most commercially available forms of BTX require reconstitution before use, which may increase the risk of contamination and requires careful titration. Recently, a liquid-type BTX type A (BTX-A) has been developed, which should simplify the procedure and enhance its efficacy. Herein, we present a prospective...

article

Association of dietary patterns with the fecal microbiota in Korean adolescents

Han Byul Jang, Min-Kyu Choi, Jae Heon Kang, Sang Ick Park, more

BMC Nutrition > 2017 > 3 > 1 > 1-11

Background The gut microbiota has emerged as an important environmental factor associated with obesity, type 2 diabetes, and cardiovascular disease, through its interactions with dietary factors. Therefore, we analyzed the composition of the fecal microbiota and levels of biochemical markers related to metabolic disease according to dietary pattern in Korean adolescents. Methods We collected fecal...

article

Brute Force Orientation of Matrix‐Isolated Molecules: Reversible Reorientation of Formaldehyde in an Argon Matrix toward Perfect Alignment

Youngwook Park, Hani Kang, Heon Kang

Angewandte Chemie > 129 > 4 > 1066 - 1069

Brute force orientation by an electric field is a promising way of controlling the orientation of polar molecules in the gas phase, but its application to condensed‐phase molecules has been very limited. We studied the reorientation of formaldehyde molecules in a solid Ar matrix under the influence of a strong electric field using reflection absorption infrared spectroscopy. Asymptotically perfect...

article

Brute Force Orientation of Matrix‐Isolated Molecules: Reversible Reorientation of Formaldehyde in an Argon Matrix toward Perfect Alignment

Youngwook Park, Hani Kang, Heon Kang

Angewandte Chemie International Edition > 56 > 4 > 1046 - 1049

article

Efficiency of non-dimensional analysis for absolute nodal coordinate formulation

Kun-Woo Kim, Jae-Wook Lee, Jin-Seok Jang, Joo-Young Oh, more

Nonlinear Dynamics > 2017 > 87 > 2 > 1139-1151

Absolute nodal coordinate formulation was developed in the mid-1990s. The adoption of the continuum mechanics concept has allowed large displacements and large deformations to be expressed in flexible body analysis. However, the analysis time increases due to the increased number of degrees of freedom at nodal points. Therefore, we aimed to reduce the analysis time by converting a dimensional equation...

article

Gender Differences in the relationship between carbonated sugar-sweetened beverage intake and the likelihood of hypertension according to obesity

Hong Ji Song, Yu Jin Paek, Min Kyu Choi, Ki-Bong Yoo, more

International Journal of Public Health > 2017 > 62 > 5 > 573-581

Objectives The aim of the present study was to investigate the association between hypertension and carbonated sugar-sweetened beverages (SSB) intake according to gender and obesity. Methods The study used data from 2007, 2008 and 2009 Korea National Health and Nutrition Examination Surveys. A total of 9869 subjects (men = 3845 and women = 6024) were included. SSB intakes were calculated from food...

chapter

An Improvement of Remote User Authentication Scheme Using Smart Cards

Jun-Cheol Jeon, Byung-Heon Kang, Se-Min Kim, Wan-Soo Lee, more

Lecture Notes in Computer Science > Mobile Ad-hoc and Sensor Networks > Security > 416-423

In 2006, Manik et al. proposed a novel remote user authentication scheme using bilinear pairings. Chou et al. identified a weakness in Manik et al.’s scheme and improved the scheme. And besides, Thulasi et al. pointed that both Manik et al.’s and Chou et al.’s schemes are vulnerable to forgery attacks and replay attacks. In this paper, we analyze the previous schemes based on a timestamp and provide...

chapter

Cellular Automata Architecture for Elliptic Curve Cryptographic Hardware

Jun-Cheol Jeon, Kee-Won Kim, Byung-Heon Kang, Kee-Young Yoo

Lecture Notes in Computer Science > Computational Science – ICCS 2006 > Modelling of Complex Systems by Cellular Automata (MCSCA 2006) > 329-336

Elliptic Curve Cryptosystems (ECC) are in the spotlight due to their significantly smaller parameters. The most costly arithmetic operation in ECC is division, which is performed by multiplying the inverse of a multiplicand. On the other hand, Cellular Automata (CA) have attracted a lot of attention regarding their potential for various applications. Thus, this paper presents an EC-based hardware...

chapter

Evolutionary Algorithms for Group/Non-group Decision in Periodic Boundary CA

Byung-Heon Kang, Jun-Cheol Jeon, Kee-Young Yoo

Lecture Notes in Computer Science > Advances in Natural Computation > Evolutionary Computation: Theory and Algorithms > 629-632

Cellular automata (CA) have been used for modeling the behavior of complex systems such as the VLSI technology and parallel processing system. Recently, Das et al. have reported the characterization of reachable/non-reachable CA states. Their scheme has only offered characterization under a null boundary CA (NBCA). In the simplifications of hardware implementation, however, a periodic boundary CA...

article

Selective oxidation of H₂S to sulfur over CeO₂-TiO₂ catalyst

Dong-Heon Kang, Moon-Il Kim, Dae-Won Park

Korean Journal of Chemical Engineering > 2016 > 33 > 3 > 838-843

The catalytic oxidation of hydrogen sulfide (H₂S) to elemental sulfur was studied over CeO₂-TiO₂ catalysts. The synthesized catalysts were characterized by various techniques such as X-ray diffraction, BET, X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption of ammonia, and scanning electron microscopy (SEM). Catalytic performance studies of the CeO₂-TiO₂ catalysts showed that...

article

Short-term changes of intraocular pressure and ocular perfusion pressure after intravitreal injection of bevacizumab or ranibizumab

Jong Wook Lee, Hoon Park, Jeong Han Choi, Hyun Joo Lee, more

BMC Ophthalmology > 2016 > 16 > 1 > 1-7

Background The aim of this study was to investigate the effect of intravitreal anti-vascular endothothelial growth factor (VEGF) injection on intraocular pressure (IOP) and mean ocular perfusion pressure (MOPP). Methods MOPP results were obtained by measuring mean arterial pressure (MAP) and IOP just before the injection, immediately after the injection, at 30 min, 1 day, and 1 week after injection...

article

The dietary monounsaturated to saturated fatty acid ratio modulates the genetic effects of GCKR on serum lipid levels in children

Hye-Ja Lee, Han Byul Jang, Hyo-Jin Kim, Younjhin Ahn, more

Clinica Chimica Acta > 2015 > 450 > Complete > 155-161

Glucokinase regulator (GCKR) plays important roles in the regulation of glucokinase (GK) activity and the metabolism of glucose and lipids. We investigated whether the association between GCKR genetic variants with serum lipids in Korean adults is replicated in children, and whether these genetic influences might be modulated by dietary monounsaturated fatty acid relative to saturated fatty acid (MUFA:SFA)...

article

Prediction of future risk of insulin resistance and metabolic syndrome based on Korean boy's metabolite profiling

AeJin Lee, Han Byul Jang, Moonjin Ra, Youngshim Choi, more

Obesity Research & Clinical Practice > 2015 > 9 > 4 > 336-345

Childhood obesity is strongly related to future insulin resistance and metabolic syndrome. Thus, identifying early biomarkers of obesity-related diseases based on metabolic profiling is useful to control future metabolic disorders. We compared metabolic profiles between obese and normal-weight children and investigated specific biomarkers of future insulin resistance and metabolic syndrome.In all,...

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INFONA - science communication portal

Search results for: Heon Kang

Risk assessment of dorsal scapular nerve injury in the medial scapular area associated with upper extremity position: An ultrasonographic study

Gaps to bridge: Misalignment between perception, reality and actions in obesity

Non-dimensional simple beam models for the elastic forces in ANCF: 3D equation and simulation

The Nature of Hydrated Protons on Platinum Surfaces

Association of circulating irisin levels with metabolic and metabolite profiles of Korean adolescents

Effect of a herbal extract powder (YY-312) from Imperata cylindrica Beauvois, Citrus unshiu Markovich, and Evodia officinalis Dode on body fat mass in overweight adults: a 12-week, randomized, double-blind, placebo-controlled, parallel-group clinical trial

Reduced graphene oxide as a protection layer for Al

Liquid-type Botulinum Toxin Type A in Adductor Spasmodic Dysphonia: A Prospective Pilot Study

Association of dietary patterns with the fecal microbiota in Korean adolescents

Brute Force Orientation of Matrix‐Isolated Molecules: Reversible Reorientation of Formaldehyde in an Argon Matrix toward Perfect Alignment

Brute Force Orientation of Matrix‐Isolated Molecules: Reversible Reorientation of Formaldehyde in an Argon Matrix toward Perfect Alignment

Efficiency of non-dimensional analysis for absolute nodal coordinate formulation

Gender Differences in the relationship between carbonated sugar-sweetened beverage intake and the likelihood of hypertension according to obesity

An Improvement of Remote User Authentication Scheme Using Smart Cards

Cellular Automata Architecture for Elliptic Curve Cryptographic Hardware

Evolutionary Algorithms for Group/Non-group Decision in Periodic Boundary CA

Selective oxidation of H₂S to sulfur over CeO₂-TiO₂ catalyst

Short-term changes of intraocular pressure and ocular perfusion pressure after intravitreal injection of bevacizumab or ranibizumab

The dietary monounsaturated to saturated fatty acid ratio modulates the genetic effects of GCKR on serum lipid levels in children

Prediction of future risk of insulin resistance and metabolic syndrome based on Korean boy's metabolite profiling

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