• Parasites, Hosts and Diseases
• /
• v.56 no.6
• /
• pp.609-613
• /
• 2018

Babesiosis, caused by Babesia microti and B. divergens, is transmitted by Ixodid ticks. Symptoms of babesiosis vary from a mild flu-like illness to acute, severe, and sometimes fatal and fulminant disease. In Korea, 7 imported babesiosis cases and 1 endemic case have been reported. We report 2 cases of severe babesiosis initially mistaken as malaria. The first patient was complicated by shock and splenic infarction, the other co-infected with Lyme disease. As the population traveling abroad increases every year, physicians should be aware of babesiosis which mimics malaria, co-infection with other diseases, and its complications.

• The Journal of Internal Korean Medicine
• /
• v.38 no.6
• /
• pp.1060-1067
• /
• 2017

Objectives: This case study examined the effects of treatment with traditional Korean medicine on a central post-stroke pain patient, who had impingement syndrome of the right shoulder. Methods: The patient received traditional Korean medical treatments, including acupuncture, warm-needling, moxibustion, and cupping, throughout the treatment period, and extracorporeal shock-wave therapy and physical therapy for part of the treatment period. The effects of treatments were measured with a manual muscle test (MMT), numerical rating scale (NRS), range of motion (ROM), and gait staging index (self-invented). Results: The clinical symptoms of the patient were improved considerably after the complete treatment. Conclusions: Traditional Korean medicine may be effective for treatment of central post-stroke pain in patients with impingement syndrome.

• Journal of Yeungnam Medical Science
• /
• v.33 no.1
• /
• pp.25-28
• /
• 2016

Nephrotic syndrome is associated with a hypercoagulable state, which results in thromboembolism as one of its main complications. Various pathogenetic factors that cause the hypercoagulable state in nephrotic syndrome have been recognized. We report on a 19-year-old female with a minimal-change disease who developed pulmonary thromboembolism combined with intracardiac thrombus while on tapering steroid. Our patient showed hypoalbuminemia with an episode of shock, and was successfully treated with thrombolysis and anticoagulation therapy.

• Journal of Yeungnam Medical Science
• /
• v.31 no.1
• /
• pp.9-12
• /
• 2014

Postinfarction ventricular septal rupture (VSR) is a rare but fatal complication of acute myocardial infarction. In many cases, postinfarction VSR leads to hemodynamic instability and urgent surgical treatment is necessary. Here we describe a case of a patient with right ventricular (RV) dysfunction caused by acute RV infarction and with cardiogenic shock, whose condition improved after development of postinfarction VSR, but the patient died after corrective surgery.

• Proceedings of the KSME Conference
• /
• 2000.04a
• /
• pp.908-913
• /
• 2000

In the process of integrity evaluation for nuclear power plant components, a series of fracture mechanics evaluation on surface cracks in reactor pressure vessel(RPV) must be conducted. These fracture mechanics evaluations are based on stress intensity factor, K. However, under pressurized thermal shock(PTS) conditions, the combination of thermal and mechanical stress by steep temperature gradient and internal pressure causes considerably high tensile stress at the inside of RPV wall. Besides, the internal pressure during the normal operation produces high tensile stress at the RPV wall. As a result cracks on inner surface of RPVs may experience elastic-plastic behavior which can be explained with J-integral. In such a case, however, J-integral may possibly lose its validity due to constraint effect. In this paper, in order to verify the suitability of J-integral, two dimensional finite element analyses were applied for various surface crack. Total of 18 crack geometries were analyzed, and Q stresses were obtained by comparing resulting HRR stress distribution with corresponding actual stress distributions. In conclusion, HRR stress fields were found to overestimate the actual crack-tin stress field due to constraint effect.

• The Journal of Fisheries Business Administration
• /
• v.44 no.2
• /
• pp.101-109
• /
• 2013

This study is aimed to analyze investment effects of fisheries R&D projects of the National Fisheries Research and Development Institute(NFRDI). In the analysis, Granger causal relations between R&D investment and fisheries production are tested. In addition, time-lag effects of fisheries R&D investment are estimated with an impulse response analysis and investment effects of R&D projects are estimated by changes of social surplus. Results indicate that there exists an Granger-causality between R&D investment and fisheries production and fisheries production responds to the fisheries R&D shock about three years after the initial shock. The magnitudes of the impacts increase until a peak is reached 5~7 years and the impacts decline to zero after 25 years. As investment effects, it is shown that the internal rate of returns of fisheries R&D investment is 55.2%.

• Journal of the Korean Society for Aeronautical & Space Sciences
• /
• v.38 no.9
• /
• pp.856-861
• /
• 2010

In this work, experiments on hybrid sounding rocket were conducted to investigate the aerodynamic characteristics and analyze longitudinal static stability. Tests were performed on 1/10 scale models of sounding rocket through Mach number ranging from 1.75 to 2.5 and for angle of attack from $0^{\circ}$ to $6^{\circ}$. Aerodynamic forces and moments were measured by means of a 4 component internal balance. With measured forces and moments, static stability characteristics of rocket were calculated. Tests were made for three models with different length to determine the effect of body length. The visualization of shock waves was carried out by Schlieren optical system to observe variations of shock waves with Mach number and angle of attack.

• Journal of Yeungnam Medical Science
• /
• v.29 no.2
• /
• pp.145-149
• /
• 2012

Systemic capillary leak syndrome (SCLS) is an unusual entity characterized by hypovolemic shock, hemoconcentration, and hypo-albuminemia associated with paraproteinemia as a result of marked capillary hyper-permeability. Complications of this syndrome can include compartment syndromes, pulmonary edema, thrombosis, and acute kidney injury. This paper reports a case of severe SCLS accompanied by acute tubular necrosis caused by hypoperfusion and myoglobinuria secondary to rhabdomyolysis, which resulted in chronic kidney disease that necessitated hemodialysis. However, there have been rare data of residual end-organ damage after acute attacks in Korea. Therefore, this paper reports a case of complicated SCLS enough to hemodialysis and that developed into chronic kidney disease.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.29 no.3
• /
• pp.14-26
• /
• 2016

Objectives : This study was performed to investigate the protective effects and mechanisms of Salvia miltiorrhizae Radix extract (SME) on endotoxin shock.Methods : We used two models; LPS-induced sepsis model for in vivo model, and murine peritoneal macrophages responses for in vitro. SME was administrated orally to mice. After 1 hr, LPS was injected intraperitoneally. Survival rate was checked each time per 12 hr for 5 days. Mice were sacrificed 3 hr after LPS injection, then blood samples and organs were harvested. Cytokines secretion was measured by ELISA. Organs tissues were observed with microscope. Murine peritoneal macrophages were cultured for 1 hr either in a medium alone or in a medium that contained SME, as indicated. Then, the cells were treated with LPS for 24 hr. mRNA levels of cytokines were measured by real-time RT-PCR. Cytokine levels in the supernatants were measured by ELISA. The amount of nitrite was measured by using the Griess method to evaluate NO production. The cell lysates were analysed by Western blotting using antibodies for iNOS and β-actin was used as an internal control to monitor equal protein loading.Results : SME improverd the survival rate of mice model. SME inhibited the secretion of inflammatory cytokines and organs damages on Endotoxin Shock model. SME suppressed cytokine expression, cytokine secretion,NO production, iNOS expression in LPS-induced murine peritoneal macrophages.Conclusions : The results suggest that SME has protective effects on endotoxin shock through suppression of inflammatory cytokines, organ damages, NO production and so on.

• Journal of Advanced Marine Engineering and Technology
• /
• v.35 no.2
• /
• pp.216-223
• /
• 2011

TVC is a kind of ejector which entrains low pressure working fluid by using the high pressure working fluid. While most papers relating with ejectors treat the working fluid as an ideal gas for convenience, the fluid doesn't behave as the ideal gas when phase change occurs. In this study, numerical analysis is conducted by applying Redlich-Kwong equation of state instead of ideal gas equation of state. Two turbulent models are compared for the better prediction and SST k-${\omega}$ model is preferred rather than realizable k-${\epsilon}$ model by comparison. Energy loss at the diffuser inlet and throat using the real gas equation of state is relatively greater than that using ideal gas law. For the real gas case, pressure increase due to shock train at the diffuser outlet is relatively smaller than the ideal gas case, but both cases have the same pressure increase due to a pseudo shock.