Jin Choi

Jin Choi

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211
Publications
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Publications

Publications (211)
Article
Optimal larviculture techniques have yet to be established for Pacific cod (Gadus macrocephalus), particularly in relation to the nutritional quality of live prey. Elevated mortality during early life stages is a major concern during the production of Pacific cod larvae; this seems to be related to, among other things, nutritional deficiency during...
Article
Several writing methods were previously introduced for massively parallel electron-beam systems, e.g., single-row writing and multirow writing. A straightforward application of these methods for realizing nonuniform dose distributions often required for the proximity effect correction (PEC) including line/space patterns would turn off certain beams...
Article
This study investigated the survival rates, physiological responses, and the induction of heat shock protein 70 (HSP70) expression in size-specific walleye pollock (Gadus chalcogrammus) at different water temperatures. Four groups consisting of walleye pollocks in various lifecycle stages—embryos, larvae, small juveniles, and large juveniles—were u...
Article
The ability of enriched live food, such as Artemia, to improve the growth performance of Pacific cod (Gadus macrocephalus) larvae during larviculture has yet to be fully established. Thus, the effects of feeding differentially enriched Artemia to Pacific cod larvae were investigated here, specifically the effects on the survival, growth, fatty acid...
Article
While electron-beam (e-beam) lithography is widely employed in the pattern transfer, the proximity effect makes features blurred, and the stochastic nature of the exposure and development processes causes the roughness in the feature boundaries. In an effort to reduce the proximity effect and line edge roughness (LER), it is often necessary to esti...
Article
Full-text available
We evaluated effects of dietary lipid level on growth performance, feed utilization, fatty acid composition, plasma chemistry, and antioxidant responses in juvenile walleye pollock (Gadus chalcogrammus). Two-hundred forty juvenile pollock averaging 4.4 g in weight were randomly distributed between 12 400-L flow-through circular tanks (20 fish per t...
Article
Computational lithography is typically based on a model representing the lithographic process where a typical model consists of three components, i.e., line spread function, conversion formula (exposure-to-developing rate conversion), and noise process (exposure fluctuation). In our previous study, a practical approach to modeling the e-beam lithog...
Article
Massively parallel electron-beam systems are equipped with a large number of beams to improve the writing throughput. It is unavoidable that some of the beams are abnormal, e.g., always on or off, spatial and temporal fluctuations of beam current, beam-positioning error, etc. A practical approach to improve the writing quality is to spread the nega...
Article
Massively parallel electron-beam (e-beam) systems (MPESs) were developed to increase the writing throughput and demonstrated to be able to write large-scale patterns significantly faster compared to conventional single-beam systems. However, such systems still suffer from the inherent proximity effect due to the electron scattering in the resist. T...
Article
Full-text available
An efficient protocol for the modular synthesis of sulfones and sulfonyl derivatives has been developed utilizing sodium tert-butyldimethylsilyloxymethanesulfinate (TBSOMS-Na) as a sulfoxylate (SO2²⁻) equivalent. TBSOMS-Na, easily prepared from the commercial reagents Rongalite™ and TBSCl, serves as a potent nucleophile in S-alkylation and Cu-catal...
Article
Full-text available
Our aim was to study the relationship between the sex-determining genes, sox9a and cyp19a, and water temperature in Gadus chalcogrammus. We assessed the sex ratio based on the expression levels of sox9a and cyp19a at different water temperatures (5, 8, 11, and 14 °C) and at different stages of walleye pollock development (embryos, larvae, and juven...
Article
Full-text available
An 8-week feeding trial was conducted to investigate the effects of dietary protein level on growth performance, feed utilization, body composition, plasma chemistry and antioxidant parameters of juvenile walleye pollock (Gadus chalcogrammus). Two-hundred and forty juvenile pollock, averaging 4.5 g, were randomly distributed between 12 400-L flow-t...
Article
Full-text available
A feeding trial was conducted to assess the effect of dietary inclusion of various aquatic animal protein sources on growth performance, feed utilization, body proximate composition, and plasma chemistry in grower walleye pollock (Gadus chalcogrammus, Pallas 1811). A total of 180 grower fish averaging 154.0 g in weight were chosen randomly and dist...
Article
Full-text available
Importance Colorectal cancer (CRC) is the second leading cause of cancer-related mortality in the United States. The prognosis for patients with CRC varies widely, but new prognostic biomarkers provide the opportunity to implement a more individualized approach to treatment selection. Objective To assess the cost-effectiveness of 3 therapeutic str...
Article
Objective: Quantifying risk for cardiovascular disease (CVD) events among adolescents is difficult owing to the long latent period between risk factor development and disease outcomes. This study examined the 30-year CVD event risk among adolescents with severe obesity treated with and without metabolic and bariatric surgery (MBS), compared with y...
Article
Full-text available
Background Accurate prediction of outcomes for alcohol-associated hepatitis (AH) is critical, as prognosis determines treatment eligibility. Computed tomography (CT) features may provide prognostic information beyond traditional models. Aims Our aim was to identify CT features that predict outcomes in AH. Methods We studied 108 patients retrospec...
Article
Electron-beam (e-beam) systems with a large number of beams have been developed in order to improve the writing throughput. It is desirable to have a writing method which can control beams to achieve not only a high throughput but also a high quality of writing. In a massively-parallel e-beam system, it is unavoidable that some beams are faulty and...
Article
While electron-beam (e-beam) lithography is widely used in transferring fine-feature patterns onto a substrate, its major drawback is the low throughput, especially for large-scale patterns. To increase the writing throughput, e-beam machines with massively-parallel beams were recently developed. In such a system, it is highly likely that some beam...
Article
Full-text available
The present study analysed the factors affecting the developmental trajectories of social withdrawal during adolescence. From an ecological human development perspective, we specifically assessed the role of negative parental child-rearing attitudes and positive peer relationships on social withdrawal. First, the findings showed that negative paren...
Article
Purpose: To describe a case of inflammatory neovascularization of the lens after open globe injury. Methods: Case report. Results: A 57-year-old man presented with severe inflammation, posterior synechiae with traumatic cataract, and thick neovascularization of the intralenticular and anterior lens capsule after open globe injury in the left eye. W...
Article
This study examined the influence of water temperature on the induction of vitellogenin (VTG) in walleye pollocks (Gadus chalcogrammus) in aquaculture. The full-length VTG-A (or VTG-I) gene of walleye pollock was cloned using RACE (Rapid amplification of cDNA ends)-PCR method from liver tissue and recombinant VTG protein (wpVTG) was expressed in E....
Article
Full-text available
Chronic obstructive pulmonary disease (COPD) is a major inflammatory lung disease characterized by irreversible and progressive airflow obstruction. Although corticosteroids are often used to reduce inflammation, steroid therapies are insufficient in patients with refractory COPD. Both serum amyloid A (SAA) and IL-33 have been implicated in the pat...
Data
Effect of Dietary Lipid Level and Feeding Frequency on the Growth, Feed Utilization, and Body Composition of Juvenile Spotted Seabass, Lateolabrax maculatus
Article
A tandem approach for the stereoselective allylic reduction has been developed based on a strategy combining the palladium-catalyzed S-allylation and the sulfinyl retro-ene reactions. In a one-pot process employing various allylic carbonates, sodium t-butyldimethylsilyloxymethanesulfinate (TBSOMS-Na), easily prepared from the commercially available...
Article
A20 (also known as TNFAIP3) is a potent anti-inflammatory protein that suppresses many intracellular signaling pathways induced by inflammatory cytokines and bacterial and viral pathogens. The anti-inflammatory function of A20 depends on its modulation of or binding to polyubiquitin chains on key signaling proteins in the nuclear factor-κB (NF-κB)...
Conference Paper
Nanoimprint Lithography (NIL) has been shown to be an effective technique for replication of nano-scale features. Jet and Flash Imprint Lithography* (J-FIL*) involves the field-by-field deposition and exposure of a low viscosity resist deposited by jetting technology onto the substrate. The patterned mask is lowered into the fluid which then quickl...
Article
We analyzed the relationship between smartphone addiction and cybersexual delinquency in a sample of Korean adolescents; further, we specifically delineated and analyzed the risk factors for smartphone addiction. Statistical analyses were performed based on the responses to a survey conducted with 1,020 high school students across South Korea. Resu...
Article
Full-text available
There are errors in the Funding section. The correct funding information is as follows: This work was supported by grants from the Korea Research Institute of Bioscience and Biotechnology Research Initiative Program (KGM1221622) and Center for Women In Science Engineering and Technology (WISET2016-167). The funders had no role in study design, data...
Article
Full-text available
Picroside II isolated from Pseudolysimachion rotundum var. subintegrum has been used as traditional medicine to treat inflammatory diseases. In this study, we assessed whether picroside II has inhibitory effects on airway inflammation in a mouse model of house dust mite (HDM)-induced asthma. In the HDM-induced asthmatic model, picroside II signific...
Article
This study was undertaken to improve the survival and early life growth rates of cold-water fish by culturing rotifer (Brachionus plicatilis) with low-temperature tolerance. The enrichment experiment was carried out at different temperatures and over different time intervals. Cultivation of the rotifer at low temperatures was repeated, with the sel...
Article
Objectives: The purpose of this study is to parenting attitudes perceived by adolescents into different groups and to examine the impact of sub-factors of parenting attitudes on smart phone addiction. Methods: Data was collected by distributing questionnaires to high school students located in the nationwide regions and a total of 1,020 people were...
Article
This study was carried out to investigate the effects of dietary inclusion of defatted Chlorella on growth performance, body composition, blood biochemistry, and antioxidant enzyme activity in olive flounder. Four isonitrogenous (51% crude protein) diets were formulated to contain 0 (control), 5, 10, or 15% Chlorella meal (CM) (designated as Con, C...
Article
The purpose of this study is to review existing research trends to find highly reliable tools for measuring inconsistencies in parenting attitudes for adolescent children. We reveal factors that heavily affect reliability and feasibility of these tools and compose stable measurement items. We found a total of 37 items with high reliability and feas...
Conference Paper
Full-text available
Background: Idiopathic pulmonary fibrosis (IPF) is a chronic progressive multifactorial disease with limited treatment options.
Conference Paper
Imprint lithography has been shown to be an effective technique for replication of nano-scale features. Jet and Flash* Imprint Lithography (J-FIL*) involves the field-by-field deposition and exposure of a low viscosity resist deposited by jetting technology onto the substrate. The patterned mask is lowered into the fluid which then quickly flows in...
Conference Paper
Imprint lithography has been shown to be an effective technique for replication of nano-scale features. Jet and Flash* Imprint Lithography (J-FIL*) involves the field-by-field deposition and exposure of a low viscosity resist deposited by jetting technology onto the substrate. The patterned mask is lowered into the fluid which then quickly flows in...