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Search Results: 1 - 10 of 25593 matches for " Hae-In Lee "
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Effects of Indole-3-Acetic Acid on the Transcriptional Activities and Stress Tolerance of Bradyrhizobium japonicum
Andrew J. Donati, Hae-In Lee, Johan H. J. Leveau, Woo-Suk Chang
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0076559
Abstract: A genome-wide transcriptional profile of Bradyrhizobium japonicum, the nitrogen-fixing endosymbiont of the soybean plant, revealed differential expression of approximately 15% of the genome after a 1 mM treatment with the phytohormone indole-3-acetic acid (IAA). A total of 1,323 genes were differentially expressed (619 up-regulated and 704 down-regulated) at a two-fold cut off with q value ≤ 0.05. General stress response genes were induced, such as those involved in response to heat, cold, oxidative, osmotic, and desiccation stresses and in exopolysaccharide (EPS) biosynthesis. This suggests that IAA is effective in activating a generalized stress response in B. japonicum. The transcriptional data were corroborated by the finding that stress tolerance of B. japonicum in cell viability assays was enhanced when pre-treated with 1 mM IAA compared to controls. The IAA treatment also stimulated biofilm formation and EPS production by B. japonicum, especially acidic sugar components in the total EPS. The IAA pre-treatment did not influence the nodulation ability of B. japonicum. The data provide a comprehensive overview of the potential transcriptional responses of the symbiotic bacterium when exposed to the ubiquitous hormone of its plant host.
Renegotiating the KOREA-US FTA. American Hegemony and the
Lee Hae-young
Asia-Pacific Journal : Japan Focus , 2010,
Abstract: On December 3, 2010 South Korea and the United States announced that they had reached agreement on a new KOREA-US FTA with comprise agreements on both automobiles and agriculture. The agreement may face difficult hurdles in the legislatures of both countries that must ratify it. This article examines the process and politics that led to the agreement.Whether the Free Trade Agreement reached between South Korea and the United States (KORUS FTA) prior to the November 12 Seoul G20 Summit constituted a hasty "renegotiation" of the 2007 Treaty to comply with US demands on the eve of President Barak Obama's visit to Seoul, is no longer just a matter of semantics. Of course, it is apparent why the Lee Myung-bak administration -- as well as certain news outlets under its influence -- has doggedly insisted on referring to the negotiations by a different name. First, this was to hide the fact that the administration's declaration of "no renegotiation" had failed. Second, it was a kind of ploy to avoid a National Assembly review, the argument being that no such review was required since this was not "renegotiation." However hard the Lee administration has worked to conceal it, the U.S. press with its freedom of speech has provided a detailed account of virtually all matters. And one can even find a fair amount of information trickling through the South Korean press as well.It took fierce resistance to renegotiation in South Korea to prevent the two presidents from announcing the conclusion of the FTA as planned during Obama's visit to Seoul for the G20 Summit.
Power Law Exponents for Vertical Velocity Distributions in Natural Rivers  [PDF]
Hae-Eun Lee, Chanjoo Lee, Youg-Jeon Kim, Ji-Sung Kim, Won Kim
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.512114
Abstract:

While log law is an equation theoretically derived for near-bed region, in most cases, power law has been researched by experimental methods. Thus, many consider it as an empirical equation and fixed power law exponents such as 1/6 and 1/7 are generally applied. However, exponent of power law is an index representing bed resistance related with relative roughness and furthermore influences the shapes of vertical velocity distribution. The purpose of this study is to investigate characteristics of vertical velocity distribution of the natural rivers by testing and optimizing previous methods used for determination of power law exponent with vertical velocity distribution data collected with ADCPs during the years of 2005 to 2009 from rivers in South Korea. Roughness coefficient has been calculated from the equation of Limerinos. And using theoretical and empirical formulae, and representing relationships between bed resistance and power law exponent, it has been evaluated whether the exponents suggested by these equations appropriately reproduce vertical velocity distribution of actual rivers. As a result, it has been confirmed that there is an increasing trend of power law exponent as bed resistance increases. Therefore, in order to correctly predict vertical velocity distribution in the natural rivers, it is necessary to use an exponent that reflects flow conditions at the field.

Effects of operative hysteroscopy with anti-adhesive solution in the patients who have abnormal uterine bleeding or intrauterine lesions  [PDF]
Tae-Hee Kim, Hae-Hyeog Lee, Soo-Ho Chung, Junsik Park
Open Journal of Obstetrics and Gynecology (OJOG) , 2013, DOI: 10.4236/ojog.2013.33060
Abstract:

Objective: The purpose of this study was to evaluate the efficacy, safety, and benefits of hysteroscopic surgery in the treatment of dysfunctional uterine bleeding (DUB) or intrauterine lesions causing uterine bleeding. Methods: This study prospectively enrolled 100 patients who underwent operative hysteroscopy in tertiary referral university center because of uterine bleeding due to endometrial polyps or uterine submucosal leiomyomas diagnosed by transvaginal ultrasonogram. Indications for the operative hysteroscopies included abnormal uterine bleeding (AUB), ultrasound findings indicative of intrauterine lesions, and DUB. After operative hysteroscopic management, we inserted anti-adhesive solution, sodium hyaluronate and carboxymethyl cellulose into the uterine cavity. Results: Operative hysteroscopy was a successful procedure in 100 of 100 cases (100%) but it needed to be repeated in three cases with large uterine submucosal leiomyoma and after two endometrial polypectomy. Mean duration of the procedure was 23.2 minutes (range 5 - 67) and postoperative hospital stay was 7 hours (range 3 - 48). Most common indication was DUB (39%), submucosal leiomyoma was 21%, and endometrial polyp was 17%. There were five cases with postoperative uterine bleeding and none with fluid overload syndrome. During postoperative follow-up (3 - 28 months) the majority of patients (90/100, 90%) were free of symptoms. Conclusion: Hysteroscopic procedure is an effective and safe method for the management of benign intracavitary pathology or the treatment of dysfunctional uterine bleeding. Although sodium hyaluronate and carboxymethyl cellulose seems to be effective in the prevention of adhesion in uterine cavity, further study will be needed to prove the effectiveness of anti-adhesive solution.

Effects of early breastfeeding education on maintenance of breastfeeding practice: A prospective observational study  [PDF]
Tae-Hee Kim, Hae-Hyeog Lee, Junsik Park, Seyeon Jang, Minjung Kim
Open Journal of Nursing (OJN) , 2013, DOI: 10.4236/ojn.2013.32028
Abstract:

Background: Breast feeding is an ideal feeding type for most infants and mothers. We evaluated the effect of early breast-feeding and prenatal education of breast- feeding in maintenance of breast-feeding practice after delivery. Methods: Eighty two pregnant women who experienced vaginal delivery were recruited from the department of obstetrics and gynecology of a university hospital between January 2006 and October 2006. These differences among variables were determined using SPSS ver. 10.0 (SPSS Inc., Chicago, IL, USA). Follow-up telephone interviews were conducted 1 week and 4 weeks after delivery to check feeding method for baby and other complications. Results: We calculated the correlations among the pregnant women’s age, height, and weight, abortion experience, the newborn’s weight, and social factors using ANOVA. There was no statistically significant relationship between early breast-feeding and maintenance of breast-feeding practice. Conclusions: Antenatal and post- partum period education about breast-feeding is necessary for breast-feeding practice maintenance. Further studies in developing educational programs are needed.

Acute Renal Failure during Pregnancy  [PDF]
Dong-Su Jeon, Tae-Hee Kim, Hae-Hyeog Lee, Dong Won Byun
Open Journal of Nephrology (OJNeph) , 2013, DOI: 10.4236/ojneph.2013.31003
Abstract: Acute renal failure during pregnancy is a very rare and dangerous medical complication. Here, we report a primigravida at 31 weeks gestation who complained of oliguria, high fever, flank pain, nausea, and vomiting for 3 days. The patient’s history was unremarkable. Her laboratory findings and ultrasonography revealed acute renal failure. After delivery, the patient had no complications and normal laboratory findings. Thus, if the gestational age is appropriate to deliver the baby, prompt delivery is important to prevent acute renal failure during pregnancy.
Effects of Band Therapy Using Music on Grasping Power, Depression, and Personal Relationships in Nursing-Home-Dwelling Elderly Individuals  [PDF]
Eun Kyung Chang, Heeok Park, Miran Jung, Hae Kyeong Lee, Jieun Park, Mijung Park, Minsuk Gang
Open Journal of Nursing (OJN) , 2016, DOI: 10.4236/ojn.2016.611092
Abstract: The current study examined the effects of band therapy using music on grasping power, depression, and personal relationships among residents of a nursing home. Thirty subjects participated in the study. The band therapy included greetings, warm-up exercises with music, singing with dance, playing instruments, closing speech, and stretching with background music. Band therapy was held for 40 minutes once per week, for a total of four sessions, in the activity room of the nursing home. Findings showed that grasping power, depression, and personal relationships were improved at posttest, but the differences were not statistically significant. A better study design to compare the effects of band therapy with the other group, and a more simple and repeated intervention for the elderly to follow without stress might be necessary.
Differences between Cheeks and Dorsal Hands Skin Properties during Skiing in a Cold and Windy Environment  [PDF]
Sue Im Jang, Jiyei Choi, Jiyeon Han, Eun Joo Kim, Hae Kwang Lee
Journal of Cosmetics, Dermatological Sciences and Applications (JCDSA) , 2017, DOI: 10.4236/jcdsa.2017.71003
Abstract: Background/Purpose: The skin protects against external factors and this skin function can be affected by environmental conditions, including low temperature, low humidity, and high altitude. Therefore, it is important to study the relationship between the environment and the skin. The purpose of this study is to determine how the skin barrier functions change at low temperatures. Methods: This study was performed at a Korean ski resort on January 2015 and evaluated 10 subjects skin condition during skiing. Skin properties were examined at 2 sites (cheeks and dorsal hands) and four time points (indoor; baseline, outdoor; after first skiing and after second skiing, indoor; after taking a shower). Results: The skin hydration on the cheek decreased after the second skiing session and the erythema decreased only after the first skiing while this value on dorsal hand was not changed by skiing. The brightness and yellowness of cheek skin increased and redness decreased therefore, skin color became pale during skiing. The extensibility of cheeks and dorsal hands decreased after skiing. We found positive correlation between skin temperature and redness (r2 = 0.707, p < 0.000). Also the skin properties changed according to ambient temperature. The cheek skin temperature, erythema, redness and extensibility increased when people moved from outdoor to indoor while skin brightness and yellowness decreased. The skin hydration on both cheeks and dorsal hands and the skin properties except skin temperature of dorsal hands didn’t change significantly. Conclusions: Low temperatures can affect human skin color so that the skin color becomes pale because capillary blood vessels shrink when skin is exposed to cold environment. The cheek skin tends to change easily than dorsal hand during ambient temperature change.
The Effects of Sleep Deprivation on the Biophysical Properties of Facial Skin  [PDF]
Min Ah Kim, Eun Joo Kim, Byung Young Kang, Hae Kwang Lee
Journal of Cosmetics, Dermatological Sciences and Applications (JCDSA) , 2017, DOI: 10.4236/jcdsa.2017.71004
Abstract: Lack of sleep is a problem in today’s society, and many people are concerned about changes in their outward appearance due to lack of sleep. People generally come up with some noticeable skin attributes as symptoms of sleep deficiency including rough, dull, and dry skin as well as droopy eyelids and dark eye circles. Several previous reports also suggested that poor sleep could affect the skin condition. The purpose of this study was to evaluate the effect of one night of sleep deprivation on various skin biophysical properties. Twenty four healthy females participated in a study of one night of sleep deprivation. Subjects were kept awake for one night in a laboratory with controlled temperature and relative humidity. The skin condition of each subject was evaluated after normal sleep pattern and after one night of sleep deprivation. The measured skin biophysical parameters included transepidermal water loss, facial pore size, and skin tone, hydration, elasticity, desquamation, translucency, and blood flow. The cheek, eye, and lip areas were evaluated. After one night of sleep deprivation, multiple skin biophysical parameters showed changes when compared to the baseline measurements. A significant decrease in skin hydration and impaired barrier function were observed (p < 0.05). Decreased hydration led to decreased skin elasticity and translucency and increased skin scaling (p < 0.05). Facial pores were more conspicuous, and skin lightness decreased significantly (p < 0.05). Furthermore, skin blood flow decreased prominently (p < 0.05). The results demonstrated that the skin features that are recognized as symptoms of sleep deficiency actually showed remarkable differences after a period of sleep deprivation, and some of these features were confirmed in the eye, lip, as well as the cheek areas. This study revealed a significant association between sleep deprivation and skin biophysical properties by scientific measuring.
The Outcome of the Chemotherapy and Oncothermia for Far Advanced Adenocarcinoma of the Lung: Case Reports of Four Patients  [PDF]
Doo Yun Lee, Joon Seok Park, Hae Chul Jung, Eun Seol Byun, Seok Jin Haam, Sung Soo Lee
Advances in Lung Cancer (ALC) , 2015, DOI: 10.4236/alc.2015.41001
Abstract:

Lung cancer is one of the most aggressive and lethal form of cancers. Patients with far advanced lung cancer are treated by chemotherapy with or without radiotherapy. However, median survival of these patients is less than 6 months. To increase survival and quality of life for these patients, various forms of complementary treatments have been tried in clinical practices, and oncothermia is supposed to be one of the promising candidates. From May 2008 to November 2013, 4 patients with far advanced lung adenocarcinoma (stages IIIB and IV) were treated with oncothermia in addition to conventional chemotherapy at Gangnam Severance Hospital and Bundang CHA Hospital. All these patients have survived for more than 2 years.

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