OBJECTIVES: This study aims to investigate the factors related to Korean physicians' trust in the government. METHODS: We used structured questionnaires that were composed of multidimensional scales for each of the various categories. RESULTS: The recognition levels of trust of the government by Korean physicians were not high, and they ranged from 3.6 to 4.8 for ten scales. The factors related to trust in the government were categorized into seven factors on the basis of a factor analysis. On the regression analysis, a positive relationship was found between "the individual propensity to trust" and trust in the government, while a negative relationship was found between "the recognition level regarding the government as an authoritarian power" and trust in the government. "Confidence about participation in the policy process" as internal efficacy and "belief in governmental ability and motivation toward public demand" as external efficacy also showed a strong positive relationship with trust in the government. CONCLUSIONS: From these results, we can draw the conclusion that making efforts to improve the recognition level of trust in the government among physicians is an important policy task. To increase the trust level, participation of physicians in the policy process in various ways and open communication between the physicians'associations and the government should be facilitated.
Adult ; *Attitude of Health Personnel ; Female ; *Government ; Humans ; Male ; Middle Aged ; *Physicians ; Policy Making ; Republic of Korea ; Societies, Medical ; *Trust

PURPOSE: This study aims to compare and investigate the differences in beliefs with regard to the cause of illnesses, medial skepticism, and attitudes toward medical care between medical, Oriental medical, and nonmedical students. METHODS: To this end, we used a structured questionnaire and collected self-reported data from a sample of 667 respondents. RESULTS: First, their beliefs on the causes of illness were markedly different, depending on their specialty. Compared with students from other specialties, Oriental medical students ranked host factors, environmental factors, and natural factors as the highest causes of illness. -the former group regarded supernatural factors as a more influential cause of illnesses compared with the latter. Among Oriental medical students and nonmedical students-who were also subdivided into the aforementioned groups-the upper-grade group regarded host factors as a higher cause of illness than the lower-grade group. Second, Medical skepticism also differed depending on specialty. Compared with the medical students, Oriental medical students were more likely to have high confidence in "overcoming illnesses", "home remedies", "self-decision in treatments", and "understanding their own health". In subdividing medical and Oriental medical students according to grade we observed that the senior group had more confidence in home remedies than the junior group. Third, In an analysis of the students attitudes toward medical care, we found that nonmedical students had the highest score in the "care-oriented" and "cure-oriented" attitude categories. In the overall results, the care-oriented category ranked highest for the nonmedical students, followed by Oriental medical students and medical students; the cure-oriented category ranked highest for nonmedical students, followed by medical students and then Oriental medical students. CONCLUSION: Based on our results, we conclude that these differences between specialties should be reflected in medical curricula to bridge the gap between patients and doctors in medical education with regard to the causes of illness and attitudes toward medical care.
Curriculum ; Surveys and Questionnaires ; Education, Medical ; Humans ; Medicine, Traditional ; Students, Medical

PURPOSE: This study aims to compare and investigate the differences in beliefs with regard to the cause of illnesses, medial skepticism, and attitudes toward medical care between medical, Oriental medical, and nonmedical students. METHODS: To this end, we used a structured questionnaire and collected self-reported data from a sample of 667 respondents. RESULTS: First, their beliefs on the causes of illness were markedly different, depending on their specialty. Compared with students from other specialties, Oriental medical students ranked host factors, environmental factors, and natural factors as the highest causes of illness. -the former group regarded supernatural factors as a more influential cause of illnesses compared with the latter. Among Oriental medical students and nonmedical students-who were also subdivided into the aforementioned groups-the upper-grade group regarded host factors as a higher cause of illness than the lower-grade group. Second, Medical skepticism also differed depending on specialty. Compared with the medical students, Oriental medical students were more likely to have high confidence in "overcoming illnesses", "home remedies", "self-decision in treatments", and "understanding their own health". In subdividing medical and Oriental medical students according to grade we observed that the senior group had more confidence in home remedies than the junior group. Third, In an analysis of the students attitudes toward medical care, we found that nonmedical students had the highest score in the "care-oriented" and "cure-oriented" attitude categories. In the overall results, the care-oriented category ranked highest for the nonmedical students, followed by Oriental medical students and medical students; the cure-oriented category ranked highest for nonmedical students, followed by medical students and then Oriental medical students. CONCLUSION: Based on our results, we conclude that these differences between specialties should be reflected in medical curricula to bridge the gap between patients and doctors in medical education with regard to the causes of illness and attitudes toward medical care.
Curriculum ; Surveys and Questionnaires ; Education, Medical ; Humans ; Medicine, Traditional ; Students, Medical

The objectives of this study were to observe normal peristalsis and mixing (or segmental movements) and to evaluate an acupuncture stimulation (ST-36 and BL-27) on the intestinal (duodenum) motility in normal dogs using duplex Doppler sonography. Fifteen healthy Beagle dogs were used for this experiment after the administration of warm saline and pellet feeding. The duodenal motility was examined using duplex Doppler sonography. Six hours after the pellet feeding, an electroacupuncture stimulation at ST-36 and BL-27 was applied and the duodenal motility was examined using duplex Doppler sonography pre-stimulation, during the stimulation and post-stimulation. After saline and pellet administration, the duplex Doppler sonograms showed 3 types of peristalsis and a mixing type (or segmental movement) of duodenum motility. In the peristalsis types, most yielded high-amplitude signals which had one high peak (type-1), two high peaks (type-2), and three high peaks (type-3) and lasted more than 1.3 seconds. Mixing type of duodenum motility had weak signals and were lasted more than 1.5 seconds. Among the peristalsis types, the type 1 and type 2 were predominant and the type 3 was rarely observed. The frequency of intestinal motility stimulated by ST-36 acupoint was increased during the acupuncture stimulation (20% increase compared to the basal value) and decreased (7% decrease compared to the basal value) after stimulation. The frequency of intestinal motility stimulated by BL-27 acupoint was decreased during the acupuncture stimulation (31% decrease compared to the basal value) and increased (18% increase compared to the basal value) after stimulation. There was a significant increase(p<0.01) between the value found in during and the post-stimulation tests. We conclude that duplex Doppler studies permit a graphic visualization of intestinal movements which can be qualitatively and quantitatively analyzed using this technique, it is possible to evaluate the gastrointestinal motility after an acupuncture stimulation.
Acupuncture Points ; Animals ; Dogs/*physiology ; Electroacupuncture/methods/*veterinary ; *Gastrointestinal Motility ; Intestine, Small/physiology/*ultrasonography ; Peristalsis ; Ultrasonography, Doppler, Duplex/methods/*veterinary

Today, many materials as drug are developed having various prominent function in order to treatment of disease or cancer. Among these materials, especially docosahexaenoic acid (DHA), main constituents of omega-3 fatty acid, has a lot of beneficial and natural effects, so it has been known as anticancer material especially breast cancer. Breast cancer is disease taking high occurrence level among feminine diseases. DHA has anticancer effects on breast cancer cell, representatively inducing apoptosis, inhibiting proliferation or metastasis. Main effect of DHA on breast cancer cell is apoptosis inducing, which has mechanism that treated DHA causes lipid peroxidation increasing reactive oxygen species (ROS) level and it activates caspase 8 and caspase 9 so activated caspase occurs apoptosis. Cell lines of breast cancer are MDA-MB-231, MCF-7, SK-BR-3, T47D and ZR75. Especially this article uses the MCF-7 cell line at experiment of anti-proliferation by DHA, the MDA-MB-231 cell line at experiment of anti-metastasis by DHA, because that cell line has specialized metastasis activity. Therefore, this paper discusses the effects of natural material DHA as drug of breast cancer.
Apoptosis ; Breast Neoplasms* ; Breast* ; Caspase 8 ; Caspase 9 ; Cell Line ; Lipid Peroxidation ; MCF-7 Cells ; Neoplasm Metastasis ; Reactive Oxygen Species

In a photodynamic therapy, the difference of antibacterial capacity was compared according to the type of source of light when the same quantity of energy is irradiated.After S. mutans is formed in planktonic state and biofilm state, erythrosine diluted to 40 µM was treated for 3 minutes, and as the type of light source, Halogen, LED, and Plasma arc were used, which were irradiated for 30 seconds, 15 seconds and 9.5 seconds, respectively.After the completion of the experiment, CFU of each experiment arm was measured to compare the photodynamic therapeutic effects according to each condition.The CFU of each experiment arm had no statistically significant difference.Under the same quantity of energy, the photodynamic therapeutic effect can be said to be the same regardless of types of light source, which is a useful result in the clinical field with various light irradiators.
Arm ; Biofilms ; Erythrosine ; Photochemotherapy ; Plankton ; Plasma ; Streptococcus mutans ; Streptococcus ; Therapeutic Uses

The aim of this study was to determine the efficacy of a 3 tone plaque disclosing gel in assessing the risk of caries related to the population of Streptococcus mutans, Streptococcus sobrinus, and Lactobacillus spp. quantified using a quantitative real-time polymerase chain reaction (qRT-PCR).15 healthy children of ages 9 – 12 years were randomly examined. The 3 tone plaque disclosing gel was applied on teeth surfaces, which changed the color to pink or red, blue or purple and light blue. Plaque was divided into 3 groups based on staining. Genomic DNA from each sample was subjected to a qRT-PCR assay for quantitative detection of target bacteria. The Kruskal-Wallis test was conducted for correlation between the color of plaque and the number of bacterial species.The levels of S. mutans, S. sobrinus, and Lactobacillus spp. were significantly different in the plaque samples of the 3 groups (p < 0.05). The proportion of S. sobrinus to S. mutans showed correlation to the color of plaque.The different color-dyed plaque was related to the number of acidogenic bacteria. The 3 tone plaque disclosing gel could be used as one of the indicators to assess the clinical risk of caries associated with the population of S. mutans, S. sobrinus, and Lactobacillus spp.
Bacteria ; Child ; Dental Caries ; Dental Plaque ; DNA ; Humans ; Lactobacillus ; Real-Time Polymerase Chain Reaction ; Streptococcus mutans ; Streptococcus sobrinus ; Tooth

The aim of this study was to evaluate the shear bond strength of three luting cements and to identify the effect of thermocycling.Zirconia discs were made similar to the inner surface of a preformed pediatric zirconia crown (NuSmile® ZR crown: ZRCr). The similarity between the zirconia discs and the inner surface of a ZRCr was confirmed by scanning electron microscope. Three luting cements were Ketac™ Cem Permanent Glass Ionomer Luting Cement (KGI), RelyX™ Luting Plus Cement (RLP), RelyX™ Unicem Self-Adhesive Universal Resin Cement (RUR). Three luting cements were bonded according to the manufacturer's instructions for 60 zirconia discs and 60 dentin of primary teeth. Total of 120 specimens were divided into two subgroups: One was not aged, and the other was tested with 5500 thermocycling. Shear bond strength was measured using a universal testing machine, and the fracture patterns were observed with SEM.On the zirconia discs and the dentin of primary teeth, shear bond strength of RUR was higher than that of KGI and RLP, and there were statistically significant differences by cement type. The shear bond strength differences for RUR were not statistically significant depending on thermocycling.
Crowns ; Dentin ; Glass ; Resin Cements ; Tooth, Deciduous

The purpose of this study was to investigate the effect of adding a protective coating on the microhardness and wear resistance of glass ionomer cements (GICs).Specimens were prepared from GIC and resin-modified GIC (RMGI), and divided into 3 groups based on surface protection: (1) no coating (NC), (2) Equia coat coating (EC), and (3) un-filled adhesive coating (AD). All specimens were then placed in distilled water for 24 h. Surface hardness (n = 10) was evaluated on a Vickers hardness testing machine. Wear resistance (n = 10) was evaluated after subjecting the specimen to thermocycling for 10,000 cycles using a chewing simulator. Data were analyzed using a one-way ANOVA and the Kruskal-Wallis test.Surface hardness was highest in the NC groups, followed by the EC and AD groups. The wear depth of GI + NC was significantly higher than that of all RMGI groups. EC did not significantly lower the wear depth compared to AD.Based on these results, it was concluded that although EC does not increase the surface microhardness of GIC, it can increase the wear resistance.
Adhesives ; Glass Ionomer Cements ; Hardness ; Hardness Tests ; Mastication ; Water

The purpose of this study was to evaluate the effect of application time and phosphoric acid etching of 8th generation adhesives containing functional monomer on adhesive performance in primary teeth.80 extracted non-carious human primary teeth were selected and divided into 8 groups based on 3 factors: (1) adhesive: G-Premio bond and Single bond universal; (2) application time: shortened time and manufacture's instruction; (3) acid etching mode: self-etching and total-etching. Shear bond strength was measured using a universal testing machine, and fractured surface were observed under scanning electron microscope. Microleakage was evaluated by dye penetration depth.G-Premio bond were not significant different in shear bond strength and microleakage depending on application time of adhesive and acid etching mode. In Single bond universal, shear bond strength of short application time was significantly lower than that of long adhesive application time (p = 0.014). Clinically applicable shear bond strength values (> 17 MPa) were identified in all groups.These results suggested that G-Premio bond be used clinically for a short application time without phosphoric acid etching.
Adhesives ; Humans ; Methods ; Tooth, Deciduous