• Title/Summary/Keyword: RHA

Search Result 684, Processing Time 0.031 seconds

An Exploratory Study on Consumer Privacy Paradox Experience: Grounded Theory Approach (소비자 프라이버시 역설 경험에 대한 탐색적 연구: 근거이론적 접근)

  • Kim, Hyo Jung;Rha, Jong Youn
    • Human Ecology Research
    • /
    • v.55 no.2
    • /
    • pp.205-219
    • /
    • 2017
  • This study redefines 'consumer privacy attitude and behavior discrepancy' that occurs in the transaction environment that exists between consumer and provider as 'consumer privacy paradox.' In this study, qualitative research was conducted based on grounded theory. This study explored how consumers react to a privacy paradox as well as looked into how to adapt to the negative and positive results that can be generated by the privacy paradox. 'Consumer privacy paradox' is the same as the existing privacy paradox in that consumers can utilize the resources of personal information to consume and benefit from the market environment. However, it differs from previous studies in that it examines the privacy paradox in terms of consumer influence and consumer experience. The results of the study are as follows. First, a paradigm model of the consumer privacy paradox was derived. Second, consumers used three types of strategies to rationalize themselves or maintain indifference or relief to cope with the consumer privacy paradox. Third, the possibility of damage and the responsibility for privacy protection were the mediators of the consumer privacy paradox. Fourth, the 'result' generated by the consumer privacy paradox showed four types of: non-response, satisfaction, commitment to change, and negative emotional experience. Fifth, there is a difference in strategies to respond to the consumer privacy paradox according to consumer types.

The Optimization Study on the Test Method of Remanufactured Power Steering Oil Pump by Using FMEA (FMEA를 활용한 재제조 파워스티어링 오일펌프 시험법에 대한 최적화 연구)

  • Seo, Youngkyo;Jung, Dohyun;Yu, Sangseok;Rha, Wanyong
    • Transactions of the Korean Society of Automotive Engineers
    • /
    • v.24 no.1
    • /
    • pp.90-98
    • /
    • 2016
  • Currently government certified test method for an automobile remanufactured products is insufficient. Thus many automotive parts in the remanufacturing market are lacking proper evaluation criteria and production of defective products are causing customer dissatisfaction. In this paper a power steering oil pump, which requires stringent manufacturing standards, is studied by the failure mode and effect analysis approach. The research suggested that the test criteria such as discharge flow characteristic test, tightness test, pulley run-out test, pressure switch operation test, low temperature test and rotation pressure durability test should be performed to evaluate the reliability of remanufactured power steering oil pumps. As a result of tests, the performance of remanufactured power steering oil pump satisfied the evaluation criteria of pressure switch operation test and low temperature test. However, the remanufactured power steering oil pump failed to satisfy the evaluation criteria on discharge performance test, tightness test and pulley run-out test. These performance evaluation tests proved the necessity of standard process for the remanufactured power steering oil pump.

Association of the Myeloperoxidase $^{-463}G{\to}A$ Polymorphism with Helicobacter pylori-induced Atrophic Gastritis

  • Yang, Mie-Rha;Ryu, Hyung-Kyun;Ha, Mi-Na;Nam, Seung-Woo;Roe, Im-Hwan
    • The Korean Journal of Physiology and Pharmacology
    • /
    • v.5 no.3
    • /
    • pp.279-285
    • /
    • 2001
  • Although only a minority of the infected individuals develops atrophic gastritis and the malignancy, factors governing clinical outcomes subsequent to Helicobacter pylori (H. pylori) infection have not yet been defined. H. pylori infection is characterized by extensive infiltration of neutrophils. Myeloperoxidase (MPO) in neutrophils amplifies the oxidative potential of hydrogen peroxides that induce gastric mucosal damage, thus MPO is suspected to play a role in H. pylori-induced gastric injury. Therefore, we explored the association of host MPO genetic polymorphism with atrophic gastritis upon H. pylori infection. Biopsy specimens taken from the gastric mucosa were examined histologically in 87 patients. The PCR-RFLP assay was used to characterize MPO genotypes. The distributions of MPO genotypes were MPO (G/G) 82% and MPO (G/A) 18%. None of MPO (A/A) genotype was observed. A strong positive correlation between the levels of neutrophil infiltration and gastric atrophy found only in MPO (G/G) but not in MPO (G/A) genotype. These results suggest that MPO genotype is a critical determinant in the pathogenesis of atrophic gastritis subsequent to H. pylori infection. Further works need to clarify the functional relevance of MPO genetic polymorphisms on gastric cell injury.

  • PDF

Growth and Survival Rate on Density of Haliotis discus hannai in Cnge Culture (해상가두리에서 참전복 (Haliofis discus hannai)의 사육밀도에 따른 성장과 생존율)

  • YOON Ho Seop;RHA Sung Ju;CHA Yong Back;CHO Ju Hyun;KIM Ki Young;CHOI Sang Duk
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.37 no.4
    • /
    • pp.287-294
    • /
    • 2004
  • Effect of growth and survival rate on different densities in the cage culture of juvenile abalone (Haliotis discus hannai) were determined in Myoduri Yeosu, Jeollanamdo from April 2000 to April 2001. The shell length growth was conducted using $32.35{\pm}1.35$ mm abalone juveniles for 374 days at densities $15{\%}\;(230\;indv./m^{2}),\;30{\%}\;(460\;indv./m^{2}),\;45{\%}\;(690 \;indv./m^{2}),\;60{\%}\;(920\;indv./m^{2})$. The result showed that the hightest growth rate was observed in lowest $(15{\%})$ density experimental group. Survival rate of Juvenile abalone was the highest in $15{\%}$\; density group and lowest in $45{\%}$ density group and distribution rate of shell length showed the highest as $30{\%}\;in\;230\;indv./m^{2}\;(15{\%})$ group.

Bilateral Brachial Plexopathy Following an Attempted Hanging: A Case Report (목맴 후 발생한 양측 팔신경얼기손상: 증례보고)

  • Yoon, Byung-Nam;Choi, Seong-Hye;Rha, Joung-Ho;Sung, Jung-Joon;Ma, Eun-Ju;Lee, Kwang-Woo
    • Journal of Trauma and Injury
    • /
    • v.27 no.3
    • /
    • pp.79-83
    • /
    • 2014
  • The brachial plexus is a network of nerves that provides movement and feeling to the shoulder, arm and hand. The majority of acute brachial plexus injuries occur when the plexus is stretched violently or torn. This happens as result of the shoulder being pressed down forcefully while the head is pushed up and away from that shoulder. Such injuries frequently result from automobile or motor-cycle accidents or from falls and usually affect one side. Nerve injuries vary in severity from a mild stretching of the nerve to a tearing of the nerve root away from the spinal cord. We experienced a 50-year-old woman with weakness in both upper extremities after an attempted hanging. A consecutive workup revealed bilateral brachial plexus injuries. Six months after the incident, she had fully recovered. This is a very rare case of bilateral brachial plexus injuries after an attempted hanging.

Electrical Properties of Electroplated Cu Thin Film by Electrolyte Composite (전해액 조성에 따른 구리박막의 전기적 특성 변화에 대한 연구)

  • Song, Yoo-Jin;Seo, Jung-Hye;Lee, Youn-Seoung;Rha, Sa-Kyun
    • Korean Journal of Materials Research
    • /
    • v.19 no.6
    • /
    • pp.344-348
    • /
    • 2009
  • The electrolyte effects of the electroplating solution in Cu films grown by ElectroPlating Deposition(EPD) were investigated. The electroplated Cu films were deposited on the Cu(20 nm)/Ti (20 nm)/p-type Si(100) substrate. Potentiostatic electrodeposition was carried out using three terminal methods: 1) an Ag/AgCl reference electrode, 2) a platinum plate as a counter electrode, and 3) a seed layer as a working electrode. In this study, we changed the concentration of a plating electrolyte that was composed of $CuSO_4$, $H_2SO_4$ and HCl. The resistivity was measured with a four-point probe and the material properties were investigated by using XRD(X-ray Diffraction), an AFM(Atomic Force Microscope), a FE-SEM(Field Emission Scanning Electron Microscope) and an XPS(X-ray Photoelectron Spectroscopy). From the results, we concluded that the increase of the concentration of electrolytes led to the increase of the film density and the decrease of the electrical resistivity of the electroplated Cu film.

A Case of Recurrent Transient Small Bowel Intussusception (반복적으로 발생한 일과성 소장형 장중첩증 1예)

  • Mun, Yun-Hee;Yun, Min-Jung;Kim, Su-Youn;Rha, Yeong-Ho
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • v.9 no.1
    • /
    • pp.70-74
    • /
    • 2006
  • Isolated small bowel intussusception accounts for 10% of all pediatric intussusception. It is more common in children older than 2 years of age. Presentation usually is with vomiting and abdominal pain. Currant jelly stool and palpable mass are less frequent than typical intussusception. There are few reported cases of children with transient small bowel intussusception. We describe 3-year-old boy presented with intermittent cyclic crampy abdominal pain for 6 months was diagnosed as having recurrent transient small bowel intussusception by abdominal ultrasonography and small bowel series.

  • PDF

A Cerebral Convexity Arachnoid Cyst Associated with a Separate Middle Fossa Arachnoid Cyst-Misdiagnosed as Subdural Hygroma as a Consequence of Rupture of an Arachnoid Cyst - Case Report - (경막하 수종으로 오인된 중두개와 지주막 낭종을 동반한 대뇌궁륭부 지주막 낭종 - 증 례 보 고 -)

  • Kim, Seong-Rim;Park, Hae Kwan;Park, Sung Chan;Rha, Hyung Kyun;Kang, Joon Ki;Choi, Chang Rak
    • Journal of Korean Neurosurgical Society
    • /
    • v.30 no.sup2
    • /
    • pp.340-343
    • /
    • 2001
  • Arachnoid cysts are defined as duplicated arachnoids and their splitting with congenital, intra-arachnoid, and leptomeningeal malformations. They are most commonly located in the middle cranial fossa followed by suprasellar and quadrigeminal cisterns, posterior fossa, and very rare in cerebral convexities. They are often ruptured by trauma or spontaneously and cause subdural hygroma or subdural hematoma. Authors report a case of a 32-year-old woman with a convexity arachnoid cyst mimicking subdural hygroma associated with a separate middle fossa arachnoid cyst. Preoperatively, the convexity arachnoid cyst was misinterpreted as subdural hygroma resulted from a ruptured middle fossa cyst. The patient underwent craniotomy and cyst fenestration into the basal cistern. Two separate arachnoid cysts were found in the cerebral convexity and middle cranial fossa during the operation. Finally, cysts were resolved and she was discharged without any complication.

  • PDF

Reliability and validity of free software for the analysis of locomotor activity in mice

  • Hong, Yoo Rha;Moon, Eunsoo
    • Journal of Yeungnam Medical Science
    • /
    • v.35 no.1
    • /
    • pp.63-69
    • /
    • 2018
  • Background: Kinovea software that tracking semi-automatically the motion in video screen has been used to study motion-related tasks in several studies. However, the validation of this software in open field test to assess locomotor activity have not been studied yet. Therefore, this study aimed to examine the reliability and validity of this software in analyzing locomotor activities. Methods: Thirty male Institute Cancer Research mice were subjected in this study. The results examined by this software and the classical method were compared. Test-retest reliability and inter-rater reliability were analyzed with Pearson's correlation coefficient and intraclass correlation coefficient (ICC). The validity of this software was analyzed with Pearson's correlation coefficient. Results: This software showed good test-retest reliability (ICC=0.997, 95% confidence interval [CI]=0.975-0.994, p<0.001). This software also showed good inter-rater reliability (ICC=0.987, 95% CI=0.973-0.994, p<0.001). Furthermore, in three analyses for the validity of this software, there were significant correlations between two methods (Pearson's correlation coefficient=0.928-0.972, p<0.001). In addition, this software showed good reliability and validity in the analysis locomotor activity according to time interval. Conclusion: This study showed that this software in analyzing drug-induced locomotor activity has good reliability and validity. This software can be effectively used in animal study using the analysis of locomotor activity.