• Title/Summary/Keyword: Self-detachment

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Inadvertent Self-Detachment of Solitaire AB Stent during the Mechanical Thrombectomy for Recanalization of Acute Ischemic Stroke : Lessons Learned from the Removal of Stent via Surgical Embolectomy

  • Kang, Dong-Hun;Park, Jaechan;Hwang, Yang-Ha;Kim, Yong-Sun
    • Journal of Korean Neurosurgical Society
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    • v.53 no.6
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    • pp.360-363
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    • 2013
  • We recently experienced self-detachment of the Solitaire stent during mechanical thrombectomy of acute ischemic stroke. Then, we tried to remove the detached stent and to recanalize the occlusion, but failed with endovascular means. The following diffusion weighted image MRI revealed no significant increase in infarction size, therefore, we performed surgical removal of the stent to rescue the patient and to elucidate the reason why the self-detachment occurred. Based upon the operative findings, the stent grabbed the main thrombi but inadvertently detached at a severely tortuous, acutely angled, and circumferentially calcified segment of the internal carotid artery. Postoperative angiography demonstrated complete recanalization of the internal carotid artery. The patient's neurological deficits gradually improved, and the modified Rankin scale score was 2 at three months after surgery. In the retrospective case review, bone window images of the baseline computed tomography (CT) scan corresponded to the operative findings. According to this finding, we hypothesized that bone window images of a baseline CT scan can play a role in terms of anticipating difficult stent retrieval before the procedure.

The Effect of Interpersonal Orientation on Consumers' Buying Motivations (대인관계성향이 구매동기에 미치는 영향)

  • Kim Kee-Ok;Yoo Hyun-Jung;Nam Su-Jung
    • Journal of Families and Better Life
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    • v.24 no.3 s.81
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    • pp.83-94
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    • 2006
  • In order to understand how consumers' buying motivation is formed, that is the starting point of consumer behavior or consumers' decision-making processes, we examined how the interpersonal orientation for consumers is organized to control buying motivation and create a stepping-stone for subjects' behavior in fast varied consumer environments. In addition, we examined what influence this interpersonal orientation has on consumers' buying motivations. The results are shown as follows: First, interpersonal orientation is classified into six categories, according to Cohen's three types, i.e., compliance, detachment I: emotion independence, detachment II: performance independence, detachment III: perception independence, aggressiveness I: competitiveness, aggressiveness II: aggressiveness. Second, based on our inspection of the relation between interpersonal orientation and consumers' buying motivations, for external motivation and internal motivation, the value of R2 in regression seems too low to act as an influencing power on interpersonal orientation, while in case of introjected motivation, identified motivation I: self respect, and identified II: pursuit of harmony, I there seems to be some relationship.

Development of Centrifugal Forming Process for HTS Tube Fabrication (고온초전도체 튜브 제조를 위한 원섬 성형 공정 개발)

  • 정승호;장건익
    • Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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    • 2002.02a
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    • pp.98-100
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    • 2002
  • We developed the Centrifugal Forming Process(CFP) for HTS tube fabrication. The self-designed equipment for CFP is devided into 3 main parts depending on its role and functions. the melting part by heating of high inductive frequency, centrifugal forming part for the tube and efficient microstructure control of Bi2212 phase and molding part for tube detachment after heat treatment. In this paper we will introduce self designed Centrifugal Forming Process for HTS tube fabrication and discuss about the results related mold materials in terms of high Tc superconductor.

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Fabrication of metal structure using AI sacrificial layer (알루미늄 희생층을 이용한 금속 구조물의 제작)

  • Kim, Jung-Mu;Park, Jae-Hyoung;Lee, Sang-Ho;Sin, Dong-Sik;Kim, Yong-Kweon;Lee, Yoon-Sik
    • Proceedings of the KIEE Conference
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    • 2001.07c
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    • pp.1893-1895
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    • 2001
  • In this paper, novel release technique using wet etch is proposed. The results of this technique and the results of SAMs (Self-Assembled monolayers) coated after release using this technique are compared. Fabricated structure have 100 um in width and experimental length is from 100 um to 1 mm. Thickness of aluminum sacrificial layer is 2 um and structure thickness is 2.5 um. Cantilevers and bridges are fabricated with electroplated gold and silicon nitride deposited on substrate. An aluminium sacrificial layer was evaporated thermally and removed in various wet etching solutions. Detachment length of cantilever is 200 um and detachment length of bridge is 1 mm after isooctane rinsing. And the SAMs coating condition which is appropriate for gold and nitride are studied respectively.

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The Formation and Control of the Biofilm in Dairy Industry: A Review (유가공 산업에서의 바이오필름 형성과 제어관리: 총설)

  • Chung, Yong Hwa;Chung, Dae Hak;Baick, Seung Chun
    • Journal of Dairy Science and Biotechnology
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    • v.33 no.2
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    • pp.139-151
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    • 2015
  • Biofilms are aggregates of microorganisms present in a self-produced matrix of extracellular polymeric substance (EPS) adhered to a surface. Formation of a biofilm in the environment on farms and in dairy plants comprises several stages: attachment, growth (development), and detachment. Generally, biofilms are harmful to humans and need to be controlled. Stainless steel (SS) surfaces that are untreated or are scratched comprise substrata that are especially vulnerable to biofilm formation; therefore, SS surfaces should be polished and sanitized. Various approaches are available for the destruction of biofilms; cleaning-in-place (CIP) is the method mainly used in dairy plants. Further study on optimum detergents, cleaning conditions, and methods for this purpose is needed.

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Extending the Self-ordering Regime of High-field Anodization by Using an Electrolyte Additive (전해액 첨가제를 이용한 고전계 양극산화의 자기정렬에 관한 연구)

  • Kim, Min-Woo;Park, Seong-Soo;Sim, Seong-Ju;Kang, Tae-Ho;Shin, Yong-Bong;Ha, Yoon-Cheol
    • Journal of the Korean Electrochemical Society
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    • v.14 no.4
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    • pp.219-224
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    • 2011
  • Using an electrolyte additive, we examined, for the first time, a novel self-ordering regime of 160~200 V in high-field anodization which had been used for a fast fabrication of self-ordered anodic alumina nanotemplate. FE-SEM analyses conducted after the high-field anodization, pulse detachment and chemical widening of pores showed the relationship of 2.2 nm/V in this voltage range, which was identical to the previously reported one in the literature. The growth rate of the alumina film was about 60 um/hr, which was 30 times faster than that of phosphoric acid mild anodization. This study provides a new process for the fast fabrication of nanotemplates with interpore distances larger than 300 nm.

Christina Rossetti's Maude : Self-Abnegation and Self-Expression of a Victorian Poet (크리스티나 로제티의 『모드』 : 빅토리아 시대 시인의 자기 단념과 자기표현)

  • Ha, Myungja
    • Cross-Cultural Studies
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    • v.25
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    • pp.391-420
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    • 2011
  • Christina Rossetti's novella Maude displays Tractarian influences in terms of Holy Eucharist, Puseyism, and the doctrine of Reserve. Tractarianism is High Church revival movement of nineteenth century. In the story a teenage girl, Maude went through hard time receiving Holy Eucharist due to self-consciousness and internal guilt according to Puseyism. She felt guilty when she enjoyed worldly things and outward beauty. Due to guilt Maude refused to receive Holy Communion, which is complete connection to God. Her cousin, Agnes suggested that in refusing Holy Communion Maude is following her own will not God's will. Later Maude overcame Puseyite thought of self-hatred and reconciled with her identity as a poet and a woman. Maude oscillates between concealing and revealing, secrecy and truth, sincerity and affectation, and modesty and display. Her marvelous poetic talent makes people praise her but she withholds private feelings and attempts to divert attention from herself. Like Maude herself, the meaning of her poems is at times reserved and withheld. This tendency goes with the doctrine of Reserve in Tractarianism. The doctrine of Reserve utilizes indirect methods to reveal divine attributes because finite human being can not accept infinite God. The doctrine of Reserve sees to it that the expression will be veiled, indirect, subdued and self-effacing. Rossetti adapts a poetic method of Reserve when Maude has anxiety over 'display and poetry' and generates the reticence, secrecy, mystery, renunciation, modesty and detachment. According to Mary Arseneau, by veiling and expressing herself through symbols she can rise above the self and employ the phenomenal to suggest a noumenal reality. Thus the poetry becomes an expression of longing for the divine. The poem "Three Nuns" exemplifies Maude's maturity and gradual progress in the relationship with God. Rossetti suggests the vision full of hopes and promises of reuniting with God. In conclusion, in some sense, authoritative and conservative Tractarianism affects Rossetti both ways. On the one hand, it makes Rossetti abnegate herself and leads her to asceticism, on the other hand, it makes Rossetti express her faith in God and write amazing devotional poems such as "Three Nuns". A poem within the poem has three voices that are in perfect harmony. In the poem the first and second nun show hesitation to fully commit to God's will and the desire for the world prevents them from having heavenly joy. Third nun reveals spiritual maturity and sings new life in God where their hopes and joys begin. Rossetti expresses the procedure of spiritual growth through the poem "Three Nuns". For Rossetti, self-abnegation and self-expression both are involved in the doctrine of Reserve, Puseyism and Holy Communion.

Flexible Piezoelectric Nanocomposite Generator Devices based on BaTiO3 Dendrite Nanostructure (티탄산바륨 덴드라이트 나노구조체 기반 플렉서블 압전 나노발전소자)

  • Bae, Soo Bin
    • Journal of the Korea Institute of Military Science and Technology
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    • v.18 no.2
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    • pp.139-145
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    • 2015
  • In this paper, the flexible piezoelectric nanocomposite generator(NCG) device based on $BaTiO_3$ nanostructures was fabricated via simple and low-cost spin coating method. The $BaTiO_3$ nanostructures synthesized by self-assembly reaction showed dendrite morphologies. To produce the piezoelectric nanocomposite(p-NC layer) which acts as an electric energy source in NCG device, the piezoelectric nanopowders($BaTiO_3$) were dispersed in polydimethylsiloxane(PDMS). Sequently, the p-NC layer was inserted in two dielectric layer of PDMS; these layers enabled the NCG device flexibility as well as durability prohibiting detachment(exfoliation) for significantly mechanical bending motions. The fabricated NCG device shows average maximum open circuit voltage of 6.2 V and average maximum current signals of 300 nA at 20 wt% composition of $BaTiO_3$ nanostructures in p-NC layer. Finally, the flexible energy harvester generates stable output signals at any rate of frequency which were used to operate LCD device without any external energy supply.

Impact of Job Stress, Coping Behavior, Hardiness on Burnout in Nurses in the Emergency Department (응급실 간호사의 직무 스트레스, 스트레스 대처방식, 강인성이 소진에 미치는 영향)

  • Ha, Do Gyeong;Sung, Mi-Hae
    • Korean Journal of Occupational Health Nursing
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    • v.27 no.4
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    • pp.215-223
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    • 2018
  • Purpose: This study aimed to identify the effect of job stress, coping behavior, and hardiness on burnout in nurses in the emergency department (ED). Methods: Data were acquired via self-reporting questionnaires from 148 nurses in EDs at one general hospital, four university hospitals, and six hospitals with >200 beds. Data were analyzed using the SPSS 23.0 program through descriptive statistics, t-test, analysis of variance, Pearson's correlation coefficient, and stepwise multiple regression. Results: A statistically significant difference in burnout was observed with respect to the age of the nurses. Burnout was positively correlated with job stress and wishful thinking and detachment, among coping behaviors, and was negatively correlated with hardiness. Job stress and wishful thinking, among coping behaviors, were significant predictors of burnout and were observed in 14.9% of the nurses who experienced burnout. Conclusion: According to our results, job stress was identified as the most significant factor which influenced burnout in ED nurse's. Therefore, it is necessary to develop and implement educational programs for reducing job stress and minimizing the use of wishful thinking as a coping behavior in order to alleviate the burnout in ED nurses.

Ukrainian Students' Analysis of Abuse Treatment by Parents: Retrospective and Perspective in Virtual and Real Environments

  • Stoliarchuk, Olesia;Kokhanova, Olena;Prorok, Nataliia;Khrypko, Svitlana;Shevtsova, Olena;Tkachyshyna, Oksana;Lobanchuk, Olena
    • International Journal of Computer Science & Network Security
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    • v.22 no.8
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    • pp.197-207
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    • 2022
  • Given the prevalence of violence in Ukrainian families, measures to prevent parental abusive treatment against children are urgent. It is important to study today's youth awareness about violence within families in order to enhance a culture of engagement with spouses and children in future. The aim of the study is to examine students' reflective experiences and their attitudes towards forms, frequency, causes and effects of parental abusive treatment. During the research the following methods were used step-by-step: theoretical analyses of scientific resources, anonymous questionnaire, quantitative and correlation analyses. According to result of survey 98 students who were interviewed, none of them fell victim of sexual abuse in their families. However, more than a half (51%) of the students surveyed experienced some forms of parental physical punishment. All the interviewed students encountered psychological cases of parental violence. The mostprevalent forms of parental abuse among the interviewees are criticism, negative comparison, emotional detachment, arrogance, intimidation, blackmail and humiliation. The most prevalent consequences of parental abuse among students are anxiety, low self-esteem, insecurity, impatience, suspiciousness, constraint in communication. Students agree that budget limitations, forced labor, criticism, spanking, emotional detachment, ignoring type of communication, reproach, blackmail are acceptable methods of punishment to use when raising their own children. These results clearly demonstrate the problem of the impact of parental abuse on children and its consequences in the future. A virtual dimension of the actualized problem is considered, namely: - virtualization of aggression and cruelty in the postmodern world. - the level of determining the factor of cruelty from the space of virtual culture. - the mirror image of everyday cruelty in the virtual environment; - the phenomenon of video games as a source and context of representation of the factor of cruelty in behavioral realities; - cybercrime as a virtualized result of cruelty in family and everyday realities. - futurological perspectives of virtualization of cruelty in communicative culture in general and in family relations in particular. The postmodern world is fundamentally different from the traditions and culture of the past, primarily due to the development of computer technologies and the virtualization of life in general. So, for example, virtual communities have become, in a certain way, another world, a second reality of life in general. And certain behavioral factors, in particular cruelty in the private environment, became a projection of such a phenomenon as cybercrime. Video games are a unique modern phenomenon, which multipolarly absorb all facets of human potential, communicative tendencies, behavioral and characterological factors, from the warmth of interpersonal relationships to the extreme degree of cruelty.