• The Journal of Korean Academy of Prosthodontics
• /
• v.38 no.1
• /
• pp.12-25
• /
• 2000

To demonstrate possible influences of general bone density on the mandible, histomorphometric analysis was carried out in mandibles and iliac bones and the correlation of the two bone densities was tested. Comparison of bony density in women and men over 60 years in the mandible was carried out too. Quantitative computed tomography(QCT) was taken in cross-section of mandibles at the same site where histomorphometric analysis was peformed to evaluate the reliability of QCT. The analysis included 40 cadavers with no known diseases affecting the bones. The subjects consisted of 15 females and 25 males with a mean age of 60.3 years. Spearman correlation analysis and Wilcoxon rank sum test was performed. The results were as follows. 1. There was statistically no correlation between the mandible and iliac bone in the values of corrected cortical width(CCW), cortical porosity(POR) in cortex, and total bone volume(TBV), mean trabecular plate thickness(MTPT), mean trabecular plate density(MTPD), and mean trabecular plate separation(MTPS) in trabecular bone. 2. Comparison of women and men over 60 years, men had statistically higher bone density than women except fir POR of buccal and lingual cortex, and WTPD of alveolar trabeculae in mandible. 3. There was statistically significant correlation between TBV of trabecular bone and CT No., but not between POR and CT No. in mandible. According to the results above, there was no correlation between mandible and iliac bone density and between mandibular bony density and age. Further studies are required to support the results. A more noninvasive method to be able to measure the bone density of mandible should be developed and it is necessary to accumulate data on the normal values of bone density of mandible according to age and sex. Further study should be carried out about QCT to measure mandibular bony density using QCT.

• Clinical and Experimental Reproductive Medicine
• /
• v.48 no.1
• /
• pp.69-79
• /
• 2021

Objective: Poor ovarian response (POR) refers to a subnormal follicular response that leads to a decrease in the quality and quantity of the eggs retrieved after ovarian stimulation during assisted reproductive treatment (ART). The present study investigated the associations of multiple variants of the estrogen receptor 2 (ESR2) and follicle-stimulating hormone receptor (FSHR) genes with POR in infertile Jordanian women undergoing ART. Methods: Four polymorphisms, namely ESR2 rs1256049, ESR2 rs4986938, FSHR rs6165, and FSHR rs6166, were investigated in 60 infertile Jordanian women undergoing ART (the case group) and 60 age-matched fertile women (the control group), with a mean age of 33.60±6.34 years. Single-nucleotide polymorphisms (SNPs) were detected by restriction fragment length polymorphism and then validated using Sanger sequencing. Results: The p-value of the difference between the case and control groups regarding FSHR rs6166 was very close to 0.05 (p=0.054). However, no significant differences were observed between the two groups in terms of the other three SNPs, namely ESR2 rs1256049, ESR2 rs4986938, and FSHR rs6165 (p=0.561, p=0.433, and p=0.696, respectively). Conclusion: The association between FSHR rs6166 and POR was not statistically meaningful in the present study, but the near-significant result of this experiment suggests that statistical significance might be found in a future study with a larger number of patients.

• Iberoamérica
• /
• v.12 no.1
• /
• pp.323-347
• /
• 2010

La latinoamericanización de la inmigración a España ha comenzado a partir de principios del nuevo milenio. Ahora los latinoamericanos superan a los inmigrantes de Marruecos, que han sido más numerosos. El número de inmigrantes latinoamericanos en España es de más de 1,700,000, cifra que corresponde al 34% del total de los inmigrantes. Como es sabido, los latinoamericanos vienen a España con el fin de buscar la oportunidad de una vida mejor. La economía española ha ido bien y la condición del mercado laboral ha sido favorable a los inmigrantes de América del Sur por lo que su mayoría puede consequir el empleo y mandar el dinero a sus queridos familiares. Por otra parte, la expansión de la comunidad latinoamericana en España se debe a la hispanidad que une a América con España. Como ellos comparten misma creencia y mismo idioma con los españoles, a la vista de los españoles, son considerados 'más seguros' que los inmigrantes de otra nacionalidad cuando se establecen y se integran a la sociedad española. De este modo, la inmigración latinoamericana presente en España debe ser percibido tanto en la dimensión institucional como en el contexto histórico-cultural.

• Asian Pacific Journal of Cancer Prevention
• /
• v.13 no.11
• /
• pp.5817-5821
• /
• 2012

Background/Aims: Glutathione S-transferase M1 (GSTM1) is a multifunctional enzyme that plays a critical role in the detoxification of varieties of carcinogenic metabolites. Many studies have been conducted to investigate the association between GSTM1 polymorphism and nasopharyngeal cancer (NPC) risk, but the findings among those studies are inconsistent. To assess this relationship more precisely, we performed a meta-analysis of all available studies on the subject. Methods: Case-control studies were identified by searching Pubmed, Embase, ISI Web of Science, and Wanfang databases through September 6, 2012. We used the pooled odds ratio (OR) with its corresponding 95% confidence interval (95%CI) to evaluate the association of GSTM1 polymorphism with NPC susceptibility. Subgroup analyses by pathological types, sex and smoking status were performed to further identify the association. Results: Overall, 11 published studies with 1,513 cases and 2,802 controls were finally included into this meta-analysis according to the inclusion criteria. Meta-analysis of total studies showed that the null genotype of GSTM1 was significantly associated with increased risk of NPC, when comparing with the non-null genotype (OR=1.51, 95%CI=1.33-1.72, POR<0.001). The association was still statistically significant in subgroup analysis of patients with nasopharyngeal squamous cell carcinoma (OR=1.73, 95%CI=1.24-2.42, POR=0.001). Males with the null genotype of GSTM1 were more likely to subject to NPC than females. In addition, the association between the null genotype of GSTM1 and NPC risk was strongest in individuals with exposure to smoking. Sensitivity analysis by sequential omission of any individual studies one at a time further demonstrated the significant association. Conclusions: The findings suggest that the null genotype of GSTM1 is a risk factor for NPC, and there is a gene-smoking interaction in this association.

• Journal of Navigation and Port Research
• /
• v.38 no.6
• /
• pp.629-636
• /
• 2014

To minimize secondary damages from marine environment pollution resulting from marine accidents, International Maritime Organization(IMO) adopted "Guidelines on Places of Refuge(POR) for ships in need of assistance" as Resolution A.949(23) in it is 23rd General Assembly in 2003 and recommends Parties to the Organization designate PoR. This resolution suggests that they establish a "Decision-Making process" so as to provide reasonable PoR when disabled ships request use of PoR. Korea has not been performed introduce a PoR system in the country. Therefore, there is no decision-making process to deal with ships which need PoR. When Korea implements the PoR system in the future, the nation should establish a Decision-Making process to provide reasonable PoR in case ships in need of assistance request for PoR. In order to present what should be considered in the process of establishing a Decision-Making process for PoR in Korea in the future, in this study presents matters which should be considered in the process of founding PoR Decision-Making processes. When Korea tries to conduct POR system so that other countries' PoR Decision-Making process and the relating process of IMO and REMPEC (Regional Marine Pollution Emergency Response Centre for the Mediterranean Sea) were investigated and analyzed. In addition, in times of marine accident in Korea's sea areas, Korea's action manuals for marine accident which regulates management for an accident is analyzed and articles will be presented to be taken into account during establishing final PoR Decision-Making process.

• Iberoamérica
• /
• v.12 no.1
• /
• pp.187-212
• /
• 2010

El cine como medio de narrar el trauma histórico de los cubanos se formó especialmente en los años sesenta gracias al Instituto Cubano del Arte e Industria Cinematográficos y se sitúa en la cumbre. En el cine hecho por el director cubano Humberto Solás el discurso de historia, trauma y su memoria tiende a relatar básicamente sobre el mensaje de no olvidar el trauma histórico a través de buscar la manera eficaz e intrínseca de narrarlo. El hecho de no olvidar el trauma histórico y de poder enfrentarse con los elementos causantes del trauma significa el poder de tener la posibilidad probable de adquirir la mirada objetiva para observar la experiencia 'histórica' y la memoria 'cotidiana', y sus relaciones. Si consideramos el hecho de que la tendencia de la víctima suele querer olvidar la memoria del trauma por el miedo y dolor de enfrentarse con la representación del trauma, el enfrentarse con el trauma representado ya puede significar que la víctima esté en un trámite de conseguir la penetración con la cual supera lo negativo que le ofrece el trauma a la víctima. Este artículo se dedica especialmente para averiguar la estrategia del director cubano para realizar este fin de encontrar la manera adecuada en narrar el trauma cubano para que los cubanos puedan adquirir la penetración a través de la identificación y la simpatía entre los personajes del cine y los espectadores, enfocando con detalle en los carácteres de los protagonistas femeninas que son tres diferentes individuos en el mismo número de episodios. Cada protagonista, Lucía en cada episodio experimenta el trauma personal con diversos motivos, pero a pesar del dolor y del miedo del trauma histórico se despiertan los espectadores, quienes se identifican con la protagonista a través de la simpatía y la identificación, llegándose al momento de conseguir la penetración con la cual mira el futuro de la sociedad cubana con el objetivismo libre de los traumas históricos.

• Journal of Microbiology
• /
• v.44 no.6
• /
• pp.685-688
• /
• 2006

The aim of this study was to characterize the molecular features of serogroup C Neisseria meningitidis strains circulating in Beijing, China. Twenty out of 23 strains belonged to ST 4821. The causative serosubtype for meningococcal meningitis was P1.12-1,16-8. All of the strains expressed class 3 PorB protein. Among the five pulsed-field gel electrophoresis patterns observed, pattern III predominated.

• Proceedings of the KWS Conference
• /
• 1995.10a
• /
• pp.214-217
• /
• 1995

In order to investigate characteristics of surface fatigue crack propagation from a pit shaped surface defect which frequently exists near weld joints, SS400 steel with thickness of 12mm, which generally used for structure members, was submerged-arc welded with butt type and machined for both surface. The weld joints were devided into 5 regions, weld metal, boundary between heat affected zone (HAZ), HAZ, boundary between HAZ and base metal, and base metal. Specimens from each region were machined for a pit shaped initial surface defect with aspect ratio of 2. characteristics of surface fatigue crack por pagation from the defect under the same loading condition were compared and discussed.

• Korean Journal of Veterinary Service
• /
• v.30 no.1
• /
• pp.85-93
• /
• 2007

The purpose of this study was to investigate the infection situation of several diseases (post-weaning atrophic pigs) such as porcine reproductive and respiratory syndrome (PRRS) in swine breeding complex in Jeonbuk-Iksan. From February to October in 2006, a total of 28 swine samples (6-10 week old) were collected from 6 farms and examined by polymerase chain reaction(PCR) and clinical signs. In the rate of single infection, pneumonia was top (32.1%), followed by salmonellosis (14.2%)and Glasser's disease (10.7%) and double infection pneumonia/Glasser's disease (17.8%) was detected. PCR was detected of PCV 2 from 28 (100.0%) and PPV 6 (21.4%), PRRS PORF6 10 (35.7%) and POR7 11 (39.2%), but HC and AD was not detected. The results suggest that PCV 2 is complex infection PRRS, PPV and bacterial disease.

• Proceedings of the KIEE Conference
• /
• 1998.07f
• /
• pp.1996-1998
• /
• 1998

This paper deals with the tension control of continuous processing line for steel plant. In order to improve the tension control performance, tension control is included in POR. FF compensation is applied to get the same speed characteristics during acceleration and deceleration period. In simulation roll diameter variation and inertia variation are considered. It becomes clear that the proposed tension control system has high accuracy performance.