Daegu University is a private university in South Korea. Its campus is located a short distance outside Daegu, in Gyeongsan City, North Gyeongsang province. The school currently consists of 13 colleges from college of humanities to college of rehabilitation. The current president is Dr. Hong Duk Yul. Enrollment currently tops 20,000, and more than 780 professors are employed. Wikipedia.
News Article | May 23, 2017
BUSAN, SOUTH KOREA, May 23, 2017-- Dr. Seungryul Ma has been included in Marquis Who's Who. As in all Marquis Who's Who biographical volumes, individuals profiled are selected on the basis of current reference value. Factors such as position, noteworthy accomplishments, visibility, and prominence in a field are all taken into account during the selection process.Backed by just over 30 years of practiced industry experience, Dr. Ma works as a research fellow with the Korea Housing & Urban Guarantee Corporation, where he has been since 2015. Earlier in his career, he started as a claims adjuster for Haedong Fire & Marine Insurance Company, and Hyundai Marine & Fire Insurance Company. Subsequently, he took on various roles such as director of Samhan Claim Adjuster's Office, adjunct professor in insurance and finance at Daegu University, and director of the research institute at the Korea Claim Adjuster's Association.An alumnus of Daegu University and Keimyung University, Dr. Ma holds a Bachelor of Arts in international trade, an MBA, and a Ph.D. in insurance and finance. He also completed postdoctoral studies in mortgage finance at the University of Southern California, In order to keep abreast of changes in the field, he affiliates himself with the Asia-Pacific Risk and Insurance Association, the Korea Risk Management Society, and the Korea Claim Adjustment Society. Throughout his lengthy career, he has contributed his knowledge to a number of creative works, including a "Building Reverse Mortgage Program for Elderly Farmers."Dr. Ma has been recognized many times for his professional accomplishments. In 2006, he won the Prize for Excellence in Housing Economics through KPA, and in 2013, he won the minister prize for public administration.About Marquis Who's Who :Since 1899, when A. N. Marquis printed the First Edition of Who's Who in America , Marquis Who's Who has chronicled the lives of the most accomplished individuals and innovators from every significant field of endeavor, including politics, business, medicine, law, education, art, religion and entertainment. Today, Who's Who in America remains an essential biographical source for thousands of researchers, journalists, librarians and executive search firms around the world. Marquis publications may be visited at the official Marquis Who's Who website at www.marquiswhoswho.com Contact:Fred Marks844-394-6946
Kim H.,Daegu University
NeuroImage | Year: 2011
The present study performed a quantitative meta-analysis of functional MRI studies that used a subsequent memory approach. The meta-analysis considered both subsequent memory (SM; remembered. >. forgotten) and subsequent forgetting (SF; forgotten. >. remembered) effects, restricting the data used to that concerning visual information encoding in healthy young adults. The meta-analysis of SM effects indicated that they most consistently associated with five neural regions: left inferior frontal cortex (IFC), bilateral fusiform cortex, bilateral hippocampal formation, bilateral premotor cortex (PMC), and bilateral posterior parietal cortex (PPC). Direct comparisons of the SM effects between the studies using verbal versus pictorial material and item-memory versus associative-memory tasks yielded three main sets of findings. First, the left IFC exhibited greater SM effects during verbal material than pictorial material encoding, whereas the fusiform cortex exhibited greater SM effects during pictorial material rather than verbal material encoding. Second, bilateral hippocampal regions showed greater SM effects during pictorial material encoding compared to verbal material encoding. Furthermore, the left hippocampal region showed greater SM effects during pictorial-associative versus pictorial-item encoding. Third, bilateral PMC and PPC regions, which may support attention during encoding, exhibited greater SM effects during item encoding than during associative encoding. The meta-analysis of SF effects indicated they associated mostly with default-mode network regions, including the anterior and posterior midline cortex, the bilateral temporoparietal junction, and the bilateral superior frontal cortex. Recurrent activity oscillations between the task-positive and task-negative/default-mode networks may account for trial-to-trial variability in participants' encoding performances, which is a fundamental source of both SM and SF effects. Taken together, these findings clarify the neural activity that supports successful encoding, as well as the neural activity that leads to encoding failure. © 2010 Elsevier Inc.
Kim H.,Daegu University
NeuroImage | Year: 2012
Most internally oriented mental activities are known to strongly activate the default network, which includes remembering the past, future thinking and social cognition, and are heavily self-referential, and demanding of memory retrieval processes. Based on these observations and building on related findings from the literature, the present article proposed a simple, dual-subsystem model of the default network. The ability of the model to estimate brain activity during autobiographical memory (AM) retrieval and related reference conditions was then tested by performing a quantitative meta-analysis of relevant literature. The model divided the default network into two subsystems. The first, called the 'cortical midline subsystem (CMS)', was comprised of the anteromedial prefrontal cortex and posterior cingulate cortex, and primarily mediates self-referential processing. The other, termed the 'parieto-temporal subsystem (PTS)', included the inferior parietal lobule, medial temporal lobe and lateral temporal cortex, and mainly supports memory retrieval processes. The meta-analysis of AM retrieval contrasts yielded a double dissociation that was consistent with this model. First, CMS regions associated more with an AM > laboratory-based memory (LM) contrast than with an AM > rest contrast, confirming that these regions play more critical roles in self-referential processing than memory retrieval processes. Second, all three PTS regions showed a greater association with an AM > rest contrast than with an AM > LM contrast, confirming that their role in memory retrieval processes is greater than in self-referential processing. Although the present model is limited in scope, both in terms of anatomical and functional specifications, it integrates diverse processes such as self-referential processing, episodic and semantic memory and subsystem interface, and provides useful heuristics that can guide further research on fractionation of the default network. © 2012 Elsevier Inc.
Kim H.,Daegu University
Neuropsychologia | Year: 2016
It remains unclear whether and to what extent the default network subregions involved in episodic memory (EM) and semantic memory (SM) processes overlap or are separated from one another. This study addresses this issue through a controlled meta-analysis of functional neuroimaging studies involving healthy participants. Various EM and SM task paradigms differ widely in the extent of default network involvement. Therefore, the issue at hand cannot be properly addressed without some control for this factor. In this regard, this study employs a two-stage analysis: a preliminary meta-analysis to select EM and SM task paradigms that recruit relatively extensive default network regions and a main analysis to compare the selected task paradigms. Based on a within-EM comparison, the default network contributed more to recollection/familiarity effects than to old/new effects, and based on a within-SM comparison, it contributed more to word/pseudoword effects than to semantic/phonological effects. According to a direct comparison of recollection/familiarity and word/pseudoword effects, each involving a range of default network regions, there were more overlaps than separations in default network subregions involved in these two effects. More specifically, overlaps included the bilateral posterior cingulate/retrosplenial cortex, left inferior parietal lobule, and left anteromedial prefrontal regions, whereas separations included only the hippocampal formation and the parahippocampal cortex region, which was unique to recollection/familiarity effects. These results indicate that EM and SM retrieval processes involving strong memory signals recruit extensive and largely overlapping default network regions and differ mainly in distinct contributions of hippocampus and parahippocampal regions to EM retrieval. © 2015 Elsevier Ltd.
Kim H.,Daegu University
NeuroImage | Year: 2010
Emerging evidence indicates that three canonical brain networks-default-mode, dorsal, and ventral-play critical roles in many high-level cognitive tasks. The goal of the present study was to investigate the three network regions' involvement in episodic memory retrieval. To this end, we performed meta-analyses of prior functional MRI studies using a variant of the Remember-Know paradigm as the behavioral task. The analyses yielded three main findings. First, default-mode network regions, including the anterior and posterior midline cortex, the angular gyrus, and the medial temporal regions, were associated with greater activity during Remember (recollection) than during Know (familiarity) responses. This is consistent with the view that the default-mode network supports self-referential processing. Second, the dorsal network regions, including the dorsal frontal and parietal cortices, were associated with greater activity during Know (weak memory) than during Remember (strong memory) responses. This is consistent with the view that the dorsal network mediates executive control processing. Third, the ventral network regions, including the ventral frontal and parietal cortices, the insular cortex, and the caudate regions, increased activity with increasing familiarity strength. This is consistent with the view that the ventral network supports salience processing. These findings clarify the differential contributions of the default-mode, dorsal, and ventral networks to episodic memory retrieval and also indicate that many episodic retrieval-related activations may actually reflect more general attention/executive operations. More generally, the findings suggest that many activations observed in functional neuroimaging studies are components of networks that respond in concert rather than regions activated in isolation. © 2010 Elsevier Inc. All rights reserved.
Kim H.,Daegu University
Human Brain Mapping | Year: 2014
The aim of this study was to provide the first, comprehensive meta-analysis of the neuroimaging literature regarding greater neural responses to a deviant stimulus in a stream of repeated, standard stimuli, termed here oddball effects. The meta-analysis of 75 independent studies included a comparison of auditory and visual oddball effects and task-relevant and task-irrelevant oddball effects. The results were interpreted with reference to the model in which a large-scale dorsal frontoparietal network embodies a mechanism for orienting attention to the environment, whereas a large-scale ventral frontoparietal network supports the detection of salient, environmental changes. The meta-analysis yielded three main sets of findings. First, ventral network regions were strongly associated with oddball effects and largely common to auditory and visual modalities, indicating a supramodal "alerting" system. Most ventral network components were more strongly associated with task-relevant than task-irrelevant oddball effects, indicating a dynamic interplay of stimulus saliency and internal goals in stimulus-driven engagement of the network. Second, the bilateral inferior frontal junction, an anterior core of the dorsal network, was strongly associated with oddball effects, suggesting a central role in top-down attentional control. However, other dorsal network regions showed no or only modest association with oddball effects, likely reflecting active engagement during both oddball and standard stimulus processing. Finally, prominent oddball effects outside the two networks included the sensory cortex regions, likely reflecting attentive and preattentive modulation of early sensory activity, and subcortical regions involving the putamen, thalamus, and other areas, likely reflecting subcortical involvement in alerting responses. © 2013 Wiley Periodicals, Inc.
Yun J.W.,Daegu University
Phytochemistry | Year: 2010
Obesity is associated with many diseases, particularly diabetes, hypertension, osteoarthritis, and heart disease. The obesity incidence has increased at an alarming rate in recent years, becoming a worldwide health problem, with incalculable social costs. Two different obesity-treatment drugs are currently on the market: orlistat, which reduces intestinal fat absorption via inhibiting pancreatic lipase; and sibutramine, an anorectic or appetite suppressant. Both drugs have hazardous side-effects, including increased blood pressure, dry mouth, constipation, headache, and insomnia. For this reason, a wide variety of natural materials have been explored for their obesity treatment potential. These are mainly complex products having several components with different chemical and pharmacological features. This review aimed to survey the literature covering natural products with anti-obesity activity and to review the scientific data, including experimental methodologies, active components, and mechanisms of action against obesity. © 2010 Elsevier Ltd. All rights reserved.
Kim H.,Daegu University
Hippocampus | Year: 2015
The encoding of sensory input is intertwined with external attention, whereas retrieval is intrinsically related to internal attention. This study proposes a model in which the encoding of sensory input involves mainly the anterior hippocampus and the external attention network, whereas retrieval, the posterior hippocampus and the internal attention network. This model is referred to as the HERNET (hippocampal encoding/retrieval and network) model. Functional neuroimaging studies have identified two intrinsic large-scale networks closely associated with external and internal attention, respectively. The dorsal attention network activates during any externally oriented mental activity, whereas the default mode network shows increased activity during internally oriented mental activity. Therefore, the HERNET model may predict the activation of the anterior hippocampus and the dorsal attention network during the encoding and activation of the posterior hippocampus and the default mode network during retrieval. To test this prediction, this study provides a meta-analysis of three memory-imaging paradigms: subsequent memory, laboratory-based recollection, and autobiographical memory retrieval. The meta-analysis included 167 individual studies and 2,856 participants. The results provide support for the HERNET model and suggest that the anterior-posterior gradient of encoding and retrieval includes amygdala regions. More broadly, humans continuously oscillate between external and internal attention and thus between encoding and retrieval processes. These oscillations may involve repetitive and spontaneous activity switching between the anterior hippocampus/dorsal attention network and the posterior hippocampus/default mode network. © 2014 Wiley Periodicals, Inc.
Kim H.,Daegu University
Human Brain Mapping | Year: 2013
This study presents a meta-analysis comparing hit and correct rejection (CR) conditions across 48 fMRI studies. Old/new (hit > CR) effects associated most consistently with (1) components of the default-mode network, including the left angular gyrus, bilateral precuneus, and bilateral posterior cingulate regions, which may support the mental re-experiencing of an old event, or ecphory; (2) components of the cognitive-control network, involving the left dorsolateral and dorsomedial prefrontal cortex and bilateral intraparietal sulcus regions, which may mediate memory and non-memory control functions; and (3) the caudate nucleus, a key part of the brain's reward system that may support the satisfaction tied to target-detection. Direct comparisons of old/new effects between item versus source retrieval and "remember" versus "know" retrieval yielded three main sets of findings. First, default-mode network regions showed greater old/new effects in conditions associated with richer ecphoric processing. Second, cognitive-control network regions showed greater old/new effects in conditions associated with a greater demand for strategic-retrieval processing. Third, the caudate nucleus showed greater old/new effects in conditions tied to greater confidence in target-detection. New/old (CR > hit) effects most strongly associated with the bilateral medial temporal lobe, possibly reflecting greater encoding-related activity for new than for old items, and the right posterior middle temporal regions, possibly reflecting repetition-related neural priming for old items. In conclusion, neural activity distinguishing old from new events comprises an ensemble of multiple memory-specific activities, including encoding, retrieval, and priming, as well as multiple types of more general cognitive activities, including default-mode, cognitive-control, and reward processing. Hum Brain Mapp, 2013. © 2011 Wiley Periodicals, Inc. Copyright © 2011 Wiley Periodicals, Inc..
Daegu University | Date: 2016-02-04
The present invention is about preparing gelatin nanoparticles having a size of about 200 nm are supported or not supported with a hardly-water soluble drug without a homogenizer by constructing O/W/O or W/O systems, thereby relatively prolonging the circulation time within the human body as compared to a water-repellent particle because it is free from the immune system, and enhancing EPR (Enhanced permeability and retention) effects. In this case, the hardly-water soluble drug includes hardly soluble anticancer agents such as paclitaxel, coenzyme Q10, ursodexoychlic acid, ilaprazole or imatinib mesylate. Furthermore, the O/W/O or W/O systems are nonpolar phase/polar phase/nonvolatile nonpolar phase and polar phase/nonvolatile nonpolar phase systems, respectively. More specifically, the O/W/O or W/O systems presents a hardly soluble drug/gelatin nanoparticle/fatty acid and gelatin nanoparticle/fatty acid systems, respectively.