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윤석천,어수봉,김주일,이재엽 한국항공대학교 경영연구소 2000 경영연구 Vol.7 No.2
인터넷 취업알선은 디지털시대로의 변화에 따라 취업의 새로운 패러다임으로 대두되고 있다. 인터넷 취업알선의 대두를 거래비용이론의 접근에 따르면 탐색비용을 비롯한 거래비용은 줄어드는 대산 도덕적 해이와 역선택 비용은 증가하는 것으로 분석된다. 따라서 인터넷 취업알선이 확산되기 위해서는 두가지 방안이 제시될 수 있다. 단기적으로는 도덕적 해이와 역선택을 축소하기 위하여 개인정보 보호 및 보안 등을 비롯한 시장질서를 정립하는 것이며, 장기적으로는 새로운 비용의 증가분을 담보하는 신뢰의 구축을 위하여 채용부터 인사노무관리 및 해고에 이르기까지 전과정을 수행할 수 있는 인적자원 종합 기업을 육성하고 양성하는 것이다. The internet employment service becomes new paradigm of recruiting in the digital ages. Transaction cost approach explains that emergence of internet employment service results from the reduction of selection and recruiting cost. Because transaction cost is reduced utilizing internet tool, internet employment service becomes very popular. But that service increase the cost of moral hazard and adverse selection. The effective strategy of internet employment service enlargement make, shortly, a rule of internet employment market including solving the security and safety problems. The long term strategy i s developing the human resource firms with the integrated HRM functions in order to basically solve the moral hazard and adverse selection problem by the formation of trust.
Vitamin D deficiency in women with polycystic ovary syndrome
Kim, Jin Ju,Choi, Young Min,Chae, Soo Jin,Hwang, Kyu Ri,Yoon, Sang Ho,Kim, Min Jeong,Kim, Sun Mie,Ku, Seung Yup,Kim, Seok Hyun,Kim, Jung Gu The Korean Society for Reproductive Medicine 2014 Clinical and Experimental Reproductive Medicine Vol.41 No.2
Objective: To investigate: the prevalence of vitamin D deficiency in Korean women with polycystic ovary syndrome (PCOS), and the relationship between vitamin D status and clinical or metabolic features in this group. Methods: We recruited 38 women with PCOS using the Rotterdam criteria. A total of 109 premenopausal control women were matched with patients based on age and body mass index. Serum 25-hydroxy vitamin D concentrations less than 20 ng/mL were classified as frank vitamin D deficiency. Since vitamin D may play a significant role in metabolic disturbances in women with PCOS, correlations between clinical or metabolic parameters and vitamin D status were analyzed separately in patients and controls. Results: Women with PCOS showed no differences in the level of 25-hydroxy vitamin D ($19.6{\pm}6.6ng/mL$ in patients vs. $20.1{\pm}7.4ng/mL$ in controls, respectively, p=0.696) or prevalence of vitamin D deficiency (57.9% in patients vs. 56.5% in controls, respectively, p=0.880). In addition, we did not find any correlations between serum vitamin D level and clinical or metabolic profiles in either PCOS patients or controls. Conclusion: Our study found no differences in the absolute level of serum vitamin D between PCOS patients and matched controls. Prevalence of vitamin D deficiency was equally common among both patients and controls. Additionally, we did not find any correlations between serum vitamin D level and clinical or metabolic profiles, suggesting that the role of vitamin D in the pathogenesis of PCOS is not yet clear.
Beom Jin Kim,Hyuk Lee,Yong Chan Lee,Seong Woo Jeon,Gwang Ha Kim,Hyun-Soo Kim,Jae Kyu Sung,Dong Ho Lee,Heung Up Kim,Moo In Park,Il Ju Choi,Soon Man Yoon,Sang Wook Kim,Gwang Ho Baik,Ju Yup Lee,Jin Il Ki 거트앤리버 소화기연관학회협의회 2019 Gut and Liver Vol.13 No.5
Background/Aims: This nationwide, multicenter prospective randomized controlled trial aimed to compare the efficacy and safety of 10-day concomitant therapy (CT) and 10-day sequential therapy (ST) with 7-day clarithromycin-containing triple therapy (TT) as first-line treatment for Helicobacter pylori infection in the Korean population. Methods: Patients with H. pylori infection were assigned randomly to 7d-TT (lansoprazole 30 mg, amoxicillin 1 g, and clarithromycin 500 mg twice daily for 7 days), 10d-ST (lansoprazole 30 mg and amoxicillin 1 g twice daily for the first 5 days, followed by lansoprazole 30 mg, clarithromycin 500 mg, and metronidazole 500 mg twice daily for the remaining 5 days), or 10d-CT (lansoprazole 30 mg, amoxicillin 1 g, clarithromycin 500 mg, and metronidazole 500 mg twice daily for 10 days). The primary endpoint was eradication rate by intention-to-treat (ITT) and per-protocol (PP) analyses. Results: A total of 1,141 patients were included. The 10d-CT protocol achieved a markedly higher eradication rate than the 7d-TT protocol in both the ITT (81.2% vs 63.9%) and PP analyses (90.6% vs 71.4%). The eradication rate of the 10d-ST protocol was superior to that of the 7d-TT protocol (76.3% vs 63.9%, ITT analysis; 85.0% vs 71.4%, PP analysis). No significant differences in adherence or serious side effects were found among the three treatment arms. Conclusions: The 10d-CT and 10d-ST regimens were superior to the 7d-TT regimen as standard first-line treatment in Korea.
Characteristics and Risk Factors of Aspiration in Lateral Medullary Infarction
Ju Sun Kim,Hyun Jung Kim,Jun Yup Kim,Hyo Seon Choi,Jun-taek Hong,김덕용 대한연하장애학회 2020 대한연하장애학회지 Vol.10 No.1
Objective: To evaluate the characteristics of dysphagia and identify the risk factors of bolus aspiration in patientspresenting with pure lateral medullary infarction (LMI). Methods: Between January 2014 and January 2019, 51 post-stroke patients with LMI who underwent a videofluoroscopicswallowing study (VFSS) were enrolled retrospectively, and their medical records and brain magnetic resonanceimaging results were reviewed. The VFSS results were evaluated to analyze the swallowing function using thepenetration-aspiration scale, functional dysphagia scale, and imaging analysis software. Results: Bolus aspiration was detected in 21 patients (41.2%). The common abnormal VFSS findings were residue invalleculae (74.5%), delayed triggering of pharyngeal swallow (72.5%), residue in pyriform sinuses (62.7%), delayed pharyngealtransit time (56.9%), reduced laryngeal elevation (51.0%), and coating of the pharyngeal wall (49.0%). Theincidence of aspiration was significantly higher in the typical lesions (including the diagonal band-shaped lesions)and the large type lesions extending ventrally or dorsally, as compared to other lesion types (P<0.05). Logistic regressionanalyses revealed that the residue in pyriform sinuses is a significant independent risk factor of aspirationin the puree trial, and prolonged pharyngeal delay time (PDT) and residue in valleculae are significant risk factorsin the thin liquid trial (P<0.05). Conclusion: Considering all clinical factors, lesion locations, and swallowing processes, results of the current studyindicate that residue in pyriform sinuses is an independent risk factor of aspiration in the swallowing puree technique,whereas prolonged PDT and residue in valleculae are independent risk factors of aspiration in the swallowingliquid technique.
A case of lupus panniculitis triggered by human papillomavirus quadrivalent vaccine injection
( Ju Yeon Choi ),( Jung Yup Kim ),( Sun Min Lim ),( Jae Yun Lim ),( Han Saem Kim ),( Jung In Kim ),( Jung Min ),( Joon Hong Min ),( Young Jun Choi ),( Jae Hui Nam ),( Won Serk Kim ),( Ga Young Lee ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1
Lupus panniculitis usually manifests deep nodules and plaques involving the skin of trunk and proximal extremities, such as the lateral aspects of the upper arms, thighs, and buttocks. Hereditary character and sunlight are well-known predisposing factors. Rarely, lupus panniculitis was exacerbated following anti-hepatitis B vaccination and a lupus profundus like nodule at the site of numerous vaccinations was reported. Also, lupus erythematosus is probably related to trauma induced process, even though the correlation is poor or questionable. We report a case of a 25-year-old woman presenting erythematous patches on the both upper arms and left buttock. She recognized a palpable nodule on an erythematous base on the left upper arm occurred exactly at the site of the first human papillomavirus (HPV) quadrivalent vaccine injection (Gardasil^{®}). Thirty two months later, erythematous to brownish patches were observed on the right upper arm into which the third HPV vaccine was injected and the left buttock. Serum analysis revealed the presence of antinuclear autoantibodies of 1/640. The histologic examination of three cutaneous lesions showed lymphocytic infiltration in the fat lobules and perivascular area, a lymphoid follicle, and loose edematous stroma around fatty lobules consistent with lupus panniculitis. Herein, we report a rare case of lupus panniculitis triggered by HPV vaccination.
[FCP 9] A case of non-familial generalized hypotrichosis simplex
( Ju-yeon Choi ),( Junghwa Yang ),( Yun Ho Lee ),( Jung Yup Kim ),( Sunmin Yim ),( Jae Yun Lim ),( Han-saem Kim ),( Joon Hong Min ),( Young Jun Choi ),( Jae-hui Nam ),( Ga-young Lee ),( Won-serk Kim ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.1
Hypotrichosis simplex is characterized by scanty or absent hair, which is not associated with ectodermal defects or systemic abnormalities. It is classified according to hereditary transmission, extent of affected area, and degrees of absence of hair. We report a case of an 18-year-old man presenting decreased hair density and woolly hair on the scalp. He recognized decreased hair density when he was 7 years old. There was no hair on the arms, legs, and axillary area. There were scanty hair on the eyebrow and pubic area. There was no family history of hereditary disorders affecting hair. Serum analysis revealed the increased level of dehydroepiandrosterone sulfate and progesterone. Low dose dexamethasone suppression test was negative and abdominopelvic computed tomography showed no adrenal incidentaloma or hyperplasia. The histologic examination of the scalp showed decreased number of hair follicles and mild perifollicular lymphohistiocytic and eosinophilic infiltration. Herein, we report a rare case of non-familial generalized hypotrichosis simplex.
A case of symmetric lipomatosis of the tongue
( Ju Yeon Choi ),( Jung Yup Kim ),( Sun Min Lim ),( Jae Yun Lim ),( Han Saem Kim ),( Jung In Kim ),( Jung Min ),( Joon Hong Min ),( Young Jun Choi ),( Jae Hui Nam ),( Ga Young Lee ),( Won Serk Kim ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1
Symmetric lipomatosis of the tongue (SLT) characterizes the symmetric and nonencapsulated lipomas infiltrating muscle fibers. It is an extremely rare condition and considered as different disease from multiple symmetric lipomatosis in affected age, body region, and ethnic group and in the relevance to alcoholism. We report a case of a 56-year-old man presenting multiple symmetric yellowish nodules on both lateral borders of the tongue. There was no pain or discomfort on the tongue. He was a chronic alcoholic and afflicted with pellagra, hypertension, diabetes, and anemia. The histologic examination of the lesion showed mature adipose tissue infiltrating lingual muscles consistent with SLE. He did not want the surgical resection of the lesions. Therefore, lipomas were treated by four times of intralesional injection of triamcinolone (8mg/cc). However, there was no significant change in the size of the lipomas. Herein, we report a rare case of SLT comorbid with pellagra.
( Ju Yup Lee ),( Nayoung Kim ),( Yong Sung Kim ),( Ryoung Hee Nam ),( Min Hee Ham ),( Hye Seung Lee ),( Wonjun Jo ),( Youngkwang Shim ),( Yoon Jin Choi ),( Hyuk Yoon ),( Cheol Min Shin ),( Dong Ho Lee 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2016 Journal of Neurogastroenterology and Motility (JNM Vol.22 No.4
Background/Aims This study was aimed at evaluating differences in the effects of repeated water avoidance stress (rWAS) on colonic movement, mucosal mast cell counts, cytokine levels, and visceromotor response (VMR) to colorectal distension (CRD) in rats of both sexes. Methods Wistar rats were divided into stress and no-stress groups. Rats in the stress group were exposed to rWAS (1 hr/day) for 10 days. Mucosal mast cells were immunohistochemically stained with anti-mast cell tryptase antibody and counted. The colonic mucosal cytokine levels were measured with enzyme-linked immunosorbent assay. The VMR to CRD (visceral analgesia) was assessed by using a barostat and noninvasive manometry. Results The mean number of fecal pellets in the rWAS group increased significantly as compared with that in the no-stress group in both sexes. After adjustment for body weight, the female rats had a significantly higher pellet output than the male rats. The mucosal mast cell count of the female rWAS group was higher than that of the male rWAS group (13.0 ± 0.9 vs 8.8 ± 0.6; P < 0.001). The colonic mucosal interleukin-1β level was also higher only in the female rats of the rWAS group than in those of the no-stress group. On days 10 and 11, a decrease in VMR to CRD was observed at 40 and 60 mmHg in both sexes of the rWAS group, without a sex-based difference. Conclusions The colonic response to stress appeared to be more sensitive in the female rats than in the male rats. However, stress-induced visceral analgesia had no sex-related difference and the underlying mechanism needs to be further evaluated.
( Ju Yup Lee ),( Na Young Kim ),( Sung Eun Kim ),( Yoon Jin Choi ),( Kyu Keun Kang ),( Dong Hyun Oh ),( Hee Jin Kim ),( Kwung Jun Park ),( A Young Seo ),( Hyuk Yoon ),( Cheol Min Shin ),( Young Soo Pa 대한소화기기능성질환·운동학회 2013 Journal of Neurogastroenterology and Motility (JNM Vol.19 No.4
Background/Aims Achalasia is classified into 3 types according to the Chicago classification. The aim of this study was to investigate characteristics and treatment outcomes of 3 achalasia subtypes in Korean patients. Methods Fifty-five patients diagnosed with achalasia based on conventional or high-resolution esophageal manometry were consecutively enrolled. Their clinical characteristics, manometric, endoscopic and esophagographic findings and treatment responses were analyzed among the 3 subtypes of achalasia. Results Of 55 patients, 21 (38.2%) patients had type I, 28 (50.9%) patients had type II and 6 (10.9%) patients had type III. The median follow-up period was 22.4 (interquartile range, 3.6-67.4) months. Type III patients were older than type I and II patients (70.0 vs. 46.2 and 47.6 years, P = 0.023). The width of the esophagus in type I patients was wider with more frequent bird`s beak appearance on esophagogram than the other 2 types (P = 0.010 and 0.006, respectively). Of the 50 patients who received the evaluation for treatment response at 3 months, 7 patients (36.8% vs. 26.9%) were treated with pneumatic dilatation and 4 patients (21.1% vs. 15.4%) with laparoscopic Heller`s myotomy in type I and II groups, respectively. The treatment responses of pneumatic dilatation and Heller`s myotomy in type I group were 71.4 and 50.0% and in type II were 85.7 and 75.0%, respectively, and all 5 patients in type III group showed good response to medical therapy. Conclusions Clinical characteristics of 3 achalasia subtypes in Korean patients are consistent with other studies. Treatment outcomes are variable among 3 subtypes. (J Neurogastroenterol Motil 2013;19:485-494)