Publications by authors named "Byun C"

Background: Various analgesic techniques have been applied, the pain after video assisted thoracic surgery (VATS) is still challenging for anesthesiologists. Paracetamol provide analgesic efficacy in many surgeries. However, clinical evidence in the lung surgery with regional block remain limited.

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  • - The study explores the necessity of chest tube insertion before surgery for primary spontaneous pneumothorax (PSP) in young patients, finding it may not be needed.
  • - Researchers analyzed records of 128 patients aged 14-30 who underwent video-assisted thoracoscopic surgery (VATS) and compared outcomes between those who had chest tubes and those who didn’t.
  • - Results showed no major differences in complication rates or recovery between the two groups, but the non-chest tube group enjoyed a shorter hospital stay and a higher rate of single-port surgeries.
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  • The study explores the relationship between masticatory difficulty (trouble chewing) and chronic cough using data from the Korean National Health and Nutrition Examination Survey from 2011-2015.
  • Findings show that individuals with masticatory difficulty have a higher prevalence of chronic cough (4.8%) compared to those without such difficulty (3.0%).
  • The researchers suggest that masticatory difficulty could be a clinical indicator for chronic cough, highlighting the need for collaboration between dental and respiratory health professionals for better patient care and further research into related health issues.
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: Previous studies have reported controversial results on the association between gout and the risk of cancer. This study aimed to investigate the relationship between gout and the incidence of head and neck cancer (HNC). : The data of participants who underwent health checkups in 2009 were analyzed using the National Health Insurance Database in South Korea.

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  • The IPBES invasive alien species assessment is the first comprehensive global review focusing on the threats posed by invasive species to biodiversity and human wellbeing, synthesizing over 13,000 scientific and local knowledge sources.
  • It reveals significant and escalating threats from invasive alien species and outlines practical management strategies for addressing these challenges.
  • The assessment has garnered support from 143 member states, urging immediate action against biological invasions to protect ecosystems and communities worldwide.
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  • This study investigates the link between chronic periodontitis (CP) and the occurrences of deep neck infections (DNI) and peritonsillar abscesses (PTA) using a large national health dataset from Korea spanning 2002-2019.
  • In the analysis, they found no significant relationship between a history of CP and PTA incidence, while CP was significantly associated with a higher incidence of DNI (odds ratio of 1.55).
  • The higher risk of DNI related to CP was particularly noted in younger, male, low-income, and rural demographic groups, indicating the need for better management of CP patients to prevent potential DNI complications.
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Evolutionary radiations of woody taxa within arid environments were made possible by multiple trait innovations including deep roots and embolism-resistant xylem, but little is known about how these traits have coevolved across the phylogeny of woody plants or how they jointly influence the distribution of species. We synthesized global trait and vegetation plot datasets to examine how rooting depth and xylem vulnerability across 188 woody plant species interact with aridity, precipitation seasonality, and water table depth to influence species occurrence probabilities across all biomes. Xylem resistance to embolism and rooting depth are independent woody plant traits that do not exhibit an interspecific trade-off.

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  • This study examined the occurrence of occult pneumothorax (OP) in trauma patients and evaluated the effectiveness of chest X-rays (CXR) compared to chest CT scans in diagnosing these injuries.
  • It included 1,284 patients at a trauma center, highlighting that supine CXR had low accuracy (46.7%) and sensitivity (12.7%) for diagnosing pneumothorax.
  • Significant risk factors for OP identified were lung contusion and subcutaneous emphysema visible on CXR, suggesting that these indicators may warrant further imaging like CT if a chest CXR is inconclusive.
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Phototherapeutics has shown promise in treating various diseases without surgical or drug interventions. However, it is challenging to use it in inner-body applications due to the limited light penetration depth through the skin. Therefore, we propose an organic light-emitting diode (OLED) catheter as an effective photobiomodulation (PBM) platform useful for tubular organs such as duodenums.

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Organic light-emitting diode (OLED) microdisplays have received great attention owing to their excellent performance for augmented reality/virtual reality devices applications. However, high pixel density of OLED microdisplay causes electrical crosstalk, resulting in color distortion. This study investigated the current crosstalk ratio and changes in the color gamut caused by electrical crosstalk between sub-pixels in high-resolution full-color OLED microdisplays.

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  • - The study investigated the prevalence and effects of occult pneumothorax in blunt trauma patients at a trauma center between 2020 and 2022, emphasizing that standard chest X-rays may miss this condition, which can be serious if untreated.
  • - Among 1621 patients, 187 with blunt chest trauma were analyzed, revealing that 71.7% of pneumothorax cases were occult, with a total incidence of 5.0% in all admitted trauma victims.
  • - Key risk factors included subcutaneous emphysema and rib fractures seen on chest X-rays; while some patients required delayed treatment, outcomes were generally positive, suggesting effective follow-up care is crucial.
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Based on traditional pharmacological applications and partial in vitro data, (CA) is proposed to act on skin whitening. However, its functional evaluation and underlying mechanisms have yet to be identified. This study aimed to examine the anti-melanogenesis activity of CA fraction B (CAFB) on UVB-induced skin hyperpigmentation.

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  • Scientists studied how plants use resources at the leaf level and wanted to see if similar patterns happen at the ecosystem level, which is a bigger area with lots of plants and animals.
  • They checked if three well-known theories about plant traits matched what happens in communities of plants and their ecosystems by analyzing data from many places.
  • They found that the patterns hold true at the ecosystem level, which could help create better models to predict how climate change affects nature.
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Background: In cases of chest trauma, computed tomography (CT) can be used alongside chest anteroposterior (AP) radiography and physical examination during initial evaluation. Performing a CT scan may be difficult if a patient has unstable vital signs. In contrast, radiography may not always reliably diagnose nonmarked pneumothorax or extensive subcutaneous emphysema.

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As Earth's climate has varied strongly through geological time, studying the impacts of past climate change on biodiversity helps to understand the risks from future climate change. However, it remains unclear how paleoclimate shapes spatial variation in biodiversity. Here, we assessed the influence of Quaternary climate change on spatial dissimilarity in taxonomic, phylogenetic, and functional composition among neighboring 200-kilometer cells (beta-diversity) for angiosperm trees worldwide.

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Empirical evidence shows that early arrival of native species, which induces the priority effects, can contribute to invasive plant species containment. However, more systematic studies are required to test the applied relevance of the priority effect. This study therefore aimed at testing the priority effects generated by different sowing times of seeds of nine native species on one target invasive plant species, that is, Giant ragweed ().

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  • The 'Global Spectrum of Plant Form and Function Dataset' includes mean values for six key vascular plant traits, essential for understanding plant variation.
  • This dataset aggregates around 1 million trait records from the TRY database and other sources, encompassing 92,159 species mean values across 46,047 species.
  • Comprehensive data quality management and validation ensure this is the largest and most reliable collection of empirical data on vascular plant traits available.
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A tokamak, a torus-shaped nuclear fusion device, needs an electric current in the plasma to produce magnetic field in the poloidal direction for confining fusion plasmas. Plasma current is conventionally generated by electromagnetic induction. However, for a steady-state fusion reactor, minimizing the inductive current is essential to extend the tokamak operating duration.

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Herein, the color gamut change by optical crosstalk between sub-pixels in high-resolution full-color organic light-emitting diode (OLED) microdisplays was numerically investigated. The color gamut of the OLED microdisplay decreased dramatically as the pixel density of the panel increased from 100 pixels per inch (PPI) to 3000 PPI. In addition, the increase in thickness of the passivation layer between the bottom electrode and the top color filter results in a decrease in the color gamut.

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Sicyos angulatus is a serious threat to riverine ecosystem functions and services worldwide. Here, we studied the effect of species identity and diversity on biotic resistance to S. angulatus under two different soil nutrient levels (unfertilized vs.

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This monocentric, single-blinded, randomized controlled noninferiority trial investigated the analgesic efficacy of erector spinae plane block (ESPB) combined with intercostal nerve block (ICNB) compared to that of thoracic paravertebral block (PVB) with ICNB in 52 patients undergoing video-assisted thoracic surgery (VATS). The endpoints included the difference in visual analog scale (VAS) scores for pain (0-10, where 10 = worst imaginable pain) in the postanesthetic care unit (PACU) and 24 and 48 h postoperatively between the ESPB and PVB groups. The secondary endpoints included patient satisfaction (1-5, where 5 = extremely satisfied) and total analgesic requirement in morphine milligram equivalents (MME).

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Safeguarding Earth's tree diversity is a conservation priority due to the importance of trees for biodiversity and ecosystem functions and services such as carbon sequestration. Here, we improve the foundation for effective conservation of global tree diversity by analyzing a recently developed database of tree species covering 46,752 species. We quantify range protection and anthropogenic pressures for each species and develop conservation priorities across taxonomic, phylogenetic, and functional diversity dimensions.

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Plant functional traits can predict community assembly and ecosystem functioning and are thus widely used in global models of vegetation dynamics and land-climate feedbacks. Still, we lack a global understanding of how land and climate affect plant traits. A previous global analysis of six traits observed two main axes of variation: (1) size variation at the organ and plant level and (2) leaf economics balancing leaf persistence against plant growth potential.

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  • A study was conducted on 180 nose images from 60 dogs of various ages, genders, and breeds to examine the uniqueness of canine nose patterns.
  • Both visual inspection and biometric algorithms were used to analyze the images, confirming that each dog's nose pattern is unique and remains consistent over time.
  • This conclusion was further supported by a larger dataset of 278 images from 70 dogs, reinforcing earlier claims that dog nose patterns can serve as effective biometric markers.
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We present herein the first report of organic/inorganic hybrid thin-film encapsulation (TFE) developed as an encapsulation process for mass production in the display industry. The proposed method was applied to fabricate a top-emitting organic light-emitting device (TEOLED). The organic/inorganic hybrid TFE has a 1.

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