• Journal of English Language & Literature
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• v.55 no.6
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• pp.1035-1056
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• 2009

Korean adoptee narratives have proliferated over the last ten years as adopted Koreans have begun to represent their own experiences of violent dislocation, displacement and loss in various forms of literary and artistic works, including poems, autobiographical works, novels, documentaries and films. These narratives by Korean adoptees have intervened in the current diaspora discourse to question further the traditional categories of race, ethnicity, culture and nation by representing the unique experiences of the forced and involuntary migration of adopted Koreans. For a long time, the adoption discourse has been mostly constructed from the perspectives of adoptive parents. Therefore the voice of adoptees as well as that of the birth mothers have not been properly heard or represented in adoption discourse. According to Hosu Kim, the U. S. adoption discourse, feeling pressured to deal with the stigma of the commodification of children, changed from viewing the adoptees as children who had been rescued from poverty and abandonment to considering them as a gift from the birth mothers. With the emergence of the gift rhetoric in transnational adoption, the birth mothers erased from adoption discourse have begun to be acknowledged as one of the central characters in the adoption triad. If Korean adoptees are the "the ghostly children of Korean history," the birth mothers are their "ghostly doubles" who "bear the mark of a repressed national trauma." Somebody's Daughter represents the female experiences of becoming an adopted child and of being a birth mother. In particular, the novel makes a birth mother, the forgotten presence in adoptee narratives, into a central figure in the triangular relationship created by international adoption. The novel historicizes the experiences of a Korean adoptee growing up in America as well as those of a mother who had suffered silently from feelings of unbearable loss, guilt, grief and from unforgettable memories. In addition, narrating the birth mother's story is a way to give humanity back to these forgotten women in Korean adoption history. Revisiting the site of loss both for a mother and a daughter through the novel is an act of collective mourning. The narratives about and by Korean adoptees force Korean intellectuals to reflect seriously upon Korean society and its underlying ideology which prevents a woman from mothering her own baby, and to take an ethical and political stand on this current social and political issue.

• Journal of Digital Convergence
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• v.19 no.8
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• pp.173-184
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• 2021

For the current organizations, retaining executive members is one of the most important functions of human resource management. Given that importance, although executives' mobility becomes prevalent, most prior studies tended to focus on involuntary turnover of executive members. To fill this gap, the current theoretical paper suggests a model of executive voluntary turnover, drawing on the lierature of employee mobility and entrepreneurship. First, running a new business as a CEO negatively affects prior-firm performance, but collaboration between two firms mitigate the negative association. Second, spin-off positively affects prior-firm performance, but this is weakened as spin-off firm performance decreases. Finally, moving to a competitor negatively, while moving to a collaborator positively affects prior-firm performance.

• The Journal of the Society of Stroke on Korean Medicine
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• v.21 no.1
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• pp.33-38
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• 2020

■ Objectives This case report is reported to show the effect of Ukgansan and Hwangnyeonhaedok-tang on a patient who complaining myoclonic seizure due to psychogenic non epileptic seizure, occurred after traumatic stress event. ■ Methods A female patients with myolconic seizure was treated with Ukgansan and Hwangnyeonhaedok-tang during 5 days. Then we assessed dyskinesia severity by AIMS(Abnormal Involuntary Movement Scale) every two days til discharge. ■ Results Seizure decreased two days after hospitalization, then disappeared third day. There was no recurrence till discharge. When she revisited outpatients clinic, there was no symptom. ■ Conclusion This case showed the effect of Ukgansan and Hwangnyeonhaedok-tang on psychogenic epileptic seizure.

• Korean Journal of Schizophrenia Research
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• v.23 no.2
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• pp.71-77
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• 2020

Objectives: Tardive dyskinesia (TD) is a movement disorder that is characterized by hyperkinetic movements. Previous studies have suggested that the serotonergic systems are correlated with TD vulnerability. In this study, the association between a single-nucleotide polymorphism (SNP) of the serotonin 1A receptor gene (HTR1A) rs6295 and TD was investigated. Methods: We investigated whether HTR1A rs6295 SNP is associated with antipsychotic-induced TD in 280 Korean patients with schizophrenia. Patients with schizophrenia having TD (n=105) and those without TD (n=175) were matched for their antipsychotic exposures and other relevant variables. The HTR1A rs6295 SNP was analyzed using polymerase chain reaction (PCR)-based methods. Results: There was no significant difference in the distribution of genotypic (χ²=2.70, p=0.26) and allelic (χ²=1.87, p=0.17) frequencies between the patient groups with TD and without TD. There was no significant difference in total abnormal involuntary movement scale score (F=0.39, p=0.68) among the genotype group either. Conclusion: Although there were no differences in genotypic and allelic frequency between patient groups with and without TD, further studies on association of TD with other SNPs of HTRA1 are needed to understand the pathophysiological mechanism of TD.

• Membrane and Water Treatment
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• v.14 no.1
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• pp.1-10
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• 2023

This study explored the feasibility of calcium-rich food waste, Mactra veneriformis shells (MVS), as an adsorbent for phosphate removal, and its removal efficiency was enhanced by the thermal activation process. The CaCO3 in MVS was converted to CaO by thermal activation (>800 ℃), which is more favorable for adsorbing phosphate. Thermal activation did not noticeably influence the specific surface area of MVS. The MVS thermally activated at 800 ℃ (MVS-800), showed the highest phosphate adsorption capacity, was used for further adsorption experiments, including kinetics, equilibrium isotherms, and thermodynamic adsorption. The effects of environmental factors, including pH, competing anions, and adsorbent dosage, were also studied. Phosphate adsorption by MVS-800 reached equilibrium within 48h, and the kinetic adsorption data were well explained by the pseudo-first-order model. The Langmuir model was a better fit for phosphate adsorption by MVS-800 than the Freundlich model, and the maximum adsorption capacity of MVS-800 obtained via the Langmuir model was 188.86 mg/g. Phosphate adsorption is an endothermic and involuntary process. As the pH increased, the phosphate adsorption decreased, and a sharp decrease was observed between pH 7 and 9. The presence of anions had a negative impact on phosphate removal, and their impact followed the decreasing order CO₃^2- > SO₄²- > NO₃^- > Cl^-. The increase in adsorbent dosage increased phosphate removal percentage, and 6.67 g/L of MVS-800 dose achieved 99.9% of phosphate removal. It can be concluded that the thermally treated MVS-800 can be used as an effective adsorbent for removing phosphate.

• Journal of Environmental Science International
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• v.31 no.8
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• pp.691-706
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• 2022

Magnetic activated carbon was prepared by adding a magnetic material to activated carbon that had been prepared from waste citrus peel in Jeju. The adsorption characteristics of an aqueous solution of the antibiotic trimethoprim (TMP) were investigated using the magnetic activated carbon, as an adsorbent, and response surface methodology (RSM). Batch experiments were carried out according to a four-factor Box-Behnken experimental design affecting TMP adsorption with their input parameters (TMP concentration: 50~150 mg/L; pH: 4~10; temperature: 293~323 K; adsorbent dose: 0.05~0.15 g). The significance of the independent variables and their interaction was assessed by ANOVA and t-test statistical techniques. Statistical results showed that TMP concentration was the most effective parameter, compared with others. The adsorption process can be well described by the pseudo-second-order kinetic model. The experimental isotherm data followed the Langmuir isotherm model. The maximum adsorption capacities of TMP, estimated with the Langmuir isotherm model were 115.9-130.5 mg/g at 293-323 K. Also, both the thermodynamic parameters, ΔH and ΔG, have both positive values, indicating that the adsorption of TMP by the magnetic activated carbon is an endothermic reaction and proceeds via an involuntary process.

• The Journal of Internal Korean Medicine
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• v.44 no.2
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• pp.158-166
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• 2023

Background: Adductor spasmodic dysphonia (ASD) is caused by the involuntary contraction of laryngeal muscles due to dystonia localized to the larynx. In the case of ASD, conventional treatment is mainly performed with a botulinum toxin injection. However, the botulinum toxin injection has a short-lasting effect and requires repeated injections. Alternatives are needed due to concerns over adverse effects, such as general weakness and airway aspiration caused by the botulinum toxin injection. Case report: A 46-year-old female patient with ASD complained of voice tremor and hoarseness. The combined Korean medical treatments-Ukgan-san-gami, Jakyakgamcho-tang, acupuncture, and transcutaneous electrical nerve stimulation (TENS)-were administered on the first day the patient was hospitalized. The Voice Handicap Index (VHI) was evaluated during the treatment. The VHI taken on the second day totaled 92 points. On the ninth day, 81 points were recorded. Total score gradually improved, and on the 16th day, 62 points were recorded. Combined Korean medical treatment lasted 19 days. Conclusion: The present case report suggests that a combined Korean medical treatment approach with Ukgan-san-gami, Jakyakgamcho-tang, acupuncture, and TENS might be effective for symptoms such as voice tremors and hoarseness. Combined Korean medical treatment can be a therapeutic option for patients with ASD.

• Biomolecules & Therapeutics
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• v.31 no.4
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• pp.402-410
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• 2023

Long-term administration of levodopa (L-DOPA) to patients with Parkinson's disease (PD) commonly results in involuntary dyskinetic movements, as is known for L-DOPA-induced dyskinesia (LID). 5-Hydroxytryptophan (5-HTP) has recently been shown to alleviate LID; however, no biochemical alterations to aberrant excitatory conditions have been revealed yet. In the present study, we aimed to confirm its anti-dyskinetic effect and to discover the unknown molecular mechanisms of action of 5-HTP in LID. We made an LID-induced mouse model through chronic L-DOPA treatment to 6-hydroxydopamine-induced hemi-parkinsonian mice and then administered 5-HTP 60 mg/kg for 15 days orally to LID-induced mice. In addition, we performed behavioral tests and analyzed the histological alterations in the lesioned part of the striatum (ST). Our results showed that 5-HTP significantly suppressed all types of dyskinetic movements (axial, limb, orolingual and locomotive) and its effects were similar to those of amantadine, the only approved drug by Food and Drug Administration. Moreover, 5-HTP did not affect the efficacy of L-DOPA on PD motor manifestations. From a molecular perspective, 5-HTP treatment significantly decreased phosphorylated CREB and ΔFosB expression, commonly known as downstream factors, increased in LID conditions. Furthermore, we found that the effects of 5-HTP were not mediated by dopamine1 receptor (D1)/DARPP32/ERK signaling, but regulated by AKT/mTOR/S6K signaling, which showed different mechanisms with amantadine in the denervated ST. Taken together, 5-HTP alleviates LID by regulating the hyperactivated striatal AKT/mTOR/S6K and CREB/ΔFosB signaling.

• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.377-384
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• 2022

Whether voluntary or involuntary in the field of education, learner participation is a basic premise for all teaching-learning. It is true that behaviorism and cognitive educational psychology have helped the development of teaching-learning theory so far but the reality is that it has not been of great help to provide learner-centered education according to the learner's learning type. We have professional theological knowledge and insight in theological college and having the knowledge to diagnose and solve difficulties and problems in the pastoral field and it is an increasingly difficult reality to educate students to have spiritual leadership that can lead the future society. We know that each student should understand the characteristics of each student and teach according to their learning type but the reason why it is difficult to implement is that each learner has different competencies, conditions, and cultural backgrounds and has particularly diverse learning types. in this respect, in order to increase the learning effect of individuals, individual learning considering the learning type of students is effective.

• Mood & Emotion
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• v.9 no.2
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• pp.126-132
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• 2011

Background and Objectives : This study aims to identify sociodemographic and disease-related variables which predicts continuity of outpatient treatment after discharge among bipolar patients. Materials and Method : The medical records of patients who discharged with the diagnosis of bipolar disorder from Department of Psychiatry, St. Mary's hospital from 2005 to 2009 were reviewed. Data on sociodemographic and disease-related variables were analyzed. Results : It showed older age, higher rate of male and higher rate of being married in 1-year follow-up group than in non-follow-up group. And it showed longer duration of index hospitalization, higher rate of previous psychiatric outpatient treatment within 3 months before index hospitalization, higher rate of involuntary admission in 1-year follow-up group than in non-follow-up group. The univariate logistic regression analysis revealed that older age, being male, previous psychiatric treatment and longer duration of index hospitalization were significantly related to an increased likelihood of 1-year follow-up visits. Conclusion : Age, sex, history of previous psychiatric treatment, and duration of hospitalization seems to have influence on continuity of outpatient treatment after discharge.