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인터넷 중독 청소년의 자존감, 우울, 충동성과 사회관계
윤혜미(Hye Mee Yoon),남영옥(Young Ok Nam) 충북대학교 생활과학연구소 2009 생활과학연구논총 Vol.13 No.1
Over the last decade, there has been increased interest in the addictive potential of the Internet, and past studies have indicated that the addictive pattern of Internet use are associated with some psycho-social traits of the users and adolescents and young adults are especially vulnerable population. This study investigated the extent to which psycho-social factors were related to the extent of Internet usage among adolescents and to examine the potential influences of self-esteem, depression and impulsiveness on social relations of the adolescents with Internet addiction. A total of 2,495 adolescents ages between 15-17 responded to the questionnaire, which included Young's IAT, Rosenberg's Self-esteem instrument, Beck's BDI, BISII, Hudson's IFR and IPR. Results showed that 61.0% of the sample were considered Internet addicted(4.0% seriously pathological, 57.0% moderate), who suffer from higher level of depression, impulsiveness, and problems of social relations and low self-esteem than their peers. Regression analysis indicated that problems in social relations among adolescents with Internet addiction were predicted by low self-esteem and depression. No link was found between impulsiveness and social relations. Results suggest that preventive efforts for Internet addiction of adolescents are in imminent needs. Implications to help professionals are addressed.
Yoon, Ji-Young,Park, Chul-Gue,Kim, Eun-Jung,Choi, Byung-Moon,Yoon, Ji-Uk,Kim, Yeon Ha,Lee, Moon Ok,Han, Ki Seob,Ahn, Ji-Hye The Korean Dental Society of Anesthsiology 2020 Journal of Dental Anesthesia and Pain Medicine Vol.20 No.4
Background: Nasotracheal intubation is the most commonly used method to secure the field of view when performing surgery on the oral cavity or neck. Like orotracheal intubation, nasotracheal intubation uses a laryngoscope. Hemodynamic change occurs due to the stimulation of the sympathetic nervous system. Recently, video laryngoscope with a camera attached to the end of the direct laryngoscope blade has been used to minimize this change. In this study, we investigated the optimal effect-site concentration (Ce) of remifentanil for minimizing hemodynamic responses during nasotracheal intubation with a video laryngoscope. Methods: Twenty-one patients, aged between 19 and 60 years old, scheduled for elective surgery were included in this study. Anesthesia was induced by slowly injecting propofol. At the same time, remifentanil infusion was initiated at 3.0 ng/ml via target-controlled infusion (TCI). When remifentanil attained the preset Ce, nasotracheal intubation was performed using a video laryngoscope. The patient's blood pressure and heart rate were checked pre-induction, right before and after intubation, and 1 min after intubation. Hemodynamic stability was defined as an increase in systolic blood pressure and heart rate by 20% before and after nasotracheal intubation. The response of each patient determined the Ce of remifentanil for the next patient at an interval of 0.3 ng/ml. Results: The Ce of remifentanil administered ranged from 2.4 to 3.6 ng/ml for the patients evaluated. The estimated optimal effective effect-site concentrations of remifentanil were 3.22 and 4.25 ng/ml, that were associated with a 50% and 95% probability of maintaining hemodynamic stability, respectively. Conclusion: Nasotracheal intubation using a video laryngoscope can be successfully performed in a hemodynamically stable state by using the optimal remifentanil effect-site concentration (Ce<sub>50</sub>, 3.22 ng/ml; Ce<sub>95</sub>, 4.25 ng/ml).
Yoon, Jung-Hoon,Lee, Jung-Kee,Kim, Young-Ok,Oh, Tae-Kwang Microbiology Society 2005 International journal of systematic and evolutiona Vol.55 No.1
<P>A Gram-negative, motile, non-spore-forming, pleomorphic and lipolytic bacterial strain, M37<SUP>T</SUP>, was isolated from an intertidal sediment of the Yellow Sea in Korea. This organism grew optimally at 25-28 °C and in the presence of 1-2 % NaCl. It did not grow without NaCl or in the presence of more than 6 % NaCl. Strain M37<SUP>T</SUP> was characterized chemotaxonomically by having Q-8 as the predominant respiratory lipoquinone and C16 : 1<I>ω</I>7<I>c</I> and/or iso-C15 : 0 2-OH and C16 : 0 as the major fatty acids. The DNA G+C content was 47 mol%. Phylogenetic analyses based on 16S rRNA gene sequences placed strain M37<SUP>T</SUP> within the clade comprising <I>Photobacterium</I> species, forming a coherent cluster with the type strains of <I>Photobacterium profundum</I> and <I>Photobacterium indicum</I> (16S rRNA gene similarity levels of 97·5-98·0 %). The mean DNA-DNA relatedness levels between strain M37<SUP>T</SUP> and <I>P. profundum</I> JCM 10084<SUP>T</SUP> and <I>P. indicum</I> DSM 5151<SUP>T</SUP> were in the range 12-15 %. Similarities between 16S rRNA gene sequences of strain M37<SUP>T</SUP> and those of the type strains of the other <I>Photobacterium</I> species ranged from 93·9 % (with <I>Photobacterium fischeri</I>) to 96·2 % (with <I>Photobacterium phosphoreum</I>). On the basis of phenotypic properties and phylogenetic and genomic distinctiveness, strain M37<SUP>T</SUP> (=KCTC 10562BP<SUP>T</SUP>=DSM 16190<SUP>T</SUP>) should be placed in the genus <I>Photobacterium</I> as a novel species, for which the name <I>Photobacterium lipolyticum</I> sp. nov. is proposed.</P>
Yoon, Il,Seo, Joobeom,Lee, Ji-Eun,Song, Mi Ryoung,Lee, So Young,Choi, Kyu Seong,Jung, Ok-Sang,Park, Ki-Min,Lee, Shim Sung Royal Society of Chemistry 2005 Dalton Transactions Vol.2005 No.14
<P>By virtue of simple one donor variations of O<SUB>2</SUB>S<SUB>2</SUB>X-donor macrocycles (L<SUP>1</SUP>: X&z.dbd;S, L<SUP>2</SUP>: X&z.dbd;O and L<SUP>3</SUP>: X&z.dbd;NH) towards silver(<SMALL>I</SMALL>) perchlorates, four supramolecular complexes (1–3) with different topologies have been isolated; L<SUP>1</SUP> afforded solvent- and anion-free sandwich complex (1), otherwise L<SUP>2</SUP> and L<SUP>3</SUP> gave the dimeric (2a), 1-D polymeric (2b), and tetrameric bowl-type (3) complexes with solvent or anion coordination.</P> <P>Graphic Abstract</P><P>By virtue of simple one donor variations of O<SUB>2</SUB>S<SUB>2</SUB>X-donor macrocycles (L<SUP>1</SUP>: X&z.dbd;S, L<SUP>2</SUP>: X&z.dbd;O and L<SUP>3</SUP>: X&z.dbd;NH) towards silver(<SMALL>I</SMALL>) perchlorates, four supramolecular complexes (1–3) with different topologies have been isolated. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b506438d'> </P>
Yoon, Ji-Young,Jung, Keun-Ok,Kil, Jeung-Ha,Park, Kun-Young The Korean Society of Food Science and Nutrition 2005 Preventive Nutrition and Food Science Vol.10 No.1
Commonly used spices in Korean cooking (red pepper powder, garlic, ginger) were evaluated for anti-obesity properties and effects on triglyceride (TG) and cholesterol in blood and adipose tissues in rats fed a high fat (20%) diet. SD rats were raised for four weeks on either a normal diet (ND, based on the AIN-93M diet), high fat diet (HFD, supplemented with 16% lard oil in the ND), or diets containing 5% red pepper powder (RPP), garlic or ginger. These spices significantly decreased weight gain compared to HFD, but garlic and ginger showed a greater effect on reducing weight gain than RPP. The weights of liver and epididymal and perirenal fat pads in garlic and ginger diet groups were lower than those of the HFD groups (p < 0.05). The garlic and ginger also decreased triglyceride and cholesterol contents in liver and epididymal and perirenal fat pad, reversing the higher levels seen in HFD. RPP, garlic and ginger supplemented diets were effective in lowering serum triglyceride and cholesterol levels (p< 0.05). These results indicated that garlic and ginger more effectively suppressed the effects of HFD on body fat gain and lipid values of adipose tissues and serum than RPP.