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Fuentes, Ramon,Flores, Tania,Navarro, Pablo,Salamanca, Carlos,Beltran, Victor,Borie, Eduardo Korean Academy of Periodontology 2015 Journal of Periodontal & Implant Science Vol.45 No.5
Purpose: The aim of this study was to analyze the anatomical dimensions of the buccal bone walls of the aesthetic maxillary region for immediate implant placement, based upon cone-beam computed tomography (CBCT) scans in a sample of adult patients. Methods: Two calibrated examiners analyzed a sample of 50 CBCT scans, performing morphometric analyses of both incisors and canines on the left and right sides. Subsequently, in the sagittal view, a line was traced through the major axis of the selected tooth. Then, a second line (E) was traced from the buccal to the palatal wall at the level of the observed bone ridges. The heights of the buccal and palatal bone ridges were determined at the major axis of the tooth. The buccal bone thickness was measured across five lines. The first was at the level of line E. The second was at the most apical point of the tooth, and the other three lines were equidistant between the apical and the cervical lines, and parallel to them. Statistical analysis was performed with a significance level of $P{\leq}0.05$ for the bone thickness means and standard deviations per tooth and patient for the five lines at varying depths. Results: The means of the buccal wall thicknesses in the central incisors, lateral incisors and canines were $1.14{\pm}0.65mm$, $0.95{\pm}0.67mm$ and $1.15{\pm}0.68mm$, respectively. Additionally, only on the left side were significant differences in some measurements of buccal bone thickness observed according to age and gender. However, age and gender did not show significant differences in heights between the palatal and buccal plates. In a few cases, the buccal wall had a greater height than the palatal wall. Conclusions: Less than 10% of sites showed more than a 2-mm thickness of the buccal bone wall, with the exception of the central incisor region, wherein 14.4% of cases were ${\geq}2mm$.
( Hector Raul Ibarra Sifuentes ),( Victor Ivan Segura Huicochea ),( Perla Rocio Colunga Pedraza ),( Miguel Angel Flores Caballero ),( Jose Guadalupe Martinez Jimenez ),( Concepcion Sanchez Martinez ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: Patients on hemodialysis have a death rate adjusted for age four to fi ve times higher than the general population, so early nephrology referral affects survival, also the presence of hypoalbuminemia, hyperphosphatemia, and anemia. Methods: Descriptive, observational, prospective, Unicentric Trial, involved patients with ESRD who entered the emergency area in a teaching hospital, indicating Interventional Hemodialysis (HI), which were studied for 90 days; Demographic, clinical and laboratory data were collected. Patients were followed by phone call and meeting at 30, 60 and 90 post-HI days. Statistical analysis were realized with SPSS 18 for Windows, performed descriptive statistics and survival by Kaplan-Meier was conducted. Results: In this trial were included 41 patients, mean age 50.59 years (range 17-76 years), 23 men (56.1%). The rating for nephrologist was recorded in 9 (22%). The data results were Albumin, 2.88 ± 0.57 mg/dL, phosphate, 9.48 ± 2.90 mg/dL, Hemoglobin 7.22 ± 1.42 g/dL. From the total of patients, 15 (36.6%) died within 90 days; of which 9 (60.9%) were men; Albumin levels were lower in those who died when compare with the living (2.79 vs 2.93), phosphate levels were higher when compare to living (9.97 vs 9.20); and the level of Hb was higher in those who died (7.5 vs 7.0). Survival rates at 30, 60 and 90 days were 92.7%, 85.4% and 63.4% respectively. Conclusions: Mortality found in this study is high compared with reported worldwide. When the nephrologist referral was analyzed, patients who died were the same as the number of patients without prior reference. Hypoalbuminemia and hyperphosphatemia correlate with mortality, as demonstrated in previous studies. Importantly, in our population, patients who died, had a higher hemoglobin level when compare with survivors.
Gutierrez-Vargas, Gildardo,Ruiz, Alberto,Lopez-Morelos, Victor H.,Kim, Jin-Yeon,Gonzalez-Sanchez, Jorge,Medina-Flores, Ariosto Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.9
One of the consequences of the 475 ℃ embrittlement of duplex stainless steels is the reduction of the resistance to localized corrosion. Therefore, the detection of this type of embrittlement before the material exhibits significant loss in toughness, and corrosion resistance is important to ensure the structural integrity of critical components under corrosion threats. In this research, conductivity measurements are performed using the alternating current potential drop (ACPD) technique with using a portable four-point probe as a nondestructive evaluation (NDE) method for detecting the embrittlement in a 2507 (UNS S32750) super duplex stainless steel (SDSS) aged at 475 ℃ from as-received condition to 300 h. The electric conductivity results were compared against two electrochemical tests namely double loop electrochemical potentiokinetic reactivation (DL-EPR) and critical pitting temperature (CPT). Mechanical tests and the microstructure characterized using scanning electron microscopy (SEM) imaging are conducted to track the progress of embrittlement. It is shown that the electric conductivity correlates with the changes in impact energy, microhardness, and CPT corrosion tests result demonstrating the feasibility of the four-point probe as a possible field-deployable method for evaluating the 475 ℃ embrittlement of 2507 SDSS.
The MAK16 Gene of Entamoeba histolytica and Its Identification in Isolates from Patients
Maria del Pilar Crisostomo-Vaz,Victor Alberto Marevelez-Acost,Andres Flores-Luna,Enedina Jimenez-Cardoso 대한기생충학열대의학회 2014 The Korean Journal of Parasitology Vol.52 No.4
To identify sequences of Entamoeba histolytica associated with the development of amebic liver abscess (ALA) in hamsters, subtractive hybridization of cDNA from E. histolytica HM-1:IMSS under 2 growth conditions was performed: 1) cultured in axenic medium and 2) isolated from experimental ALA in hamsters. For this procedure, 6 sequences were obtained. Of these sequences, the mak16 gene was selected for amplification in 29 cultures of E. histolytica isolated from the feces of 10 patients with intestinal symptoms and 19 asymptomatic patients. Only 5 of the 10 isolates obtained from symptomatic patients developed ALA and amplified the mak16 gene, whereas the 19 isolates from asymptomatic patients did not amplify the mak16 gene nor did they develop ALA. Based on the results of Fisher’s exact test (P<0.001), an association was inferred between the presence of the mak16 gene of E. histolytica and the ability to develop ALA in hamsters and with the patient’s symptoms (P=0.02). The amplification of the mak16 gene suggests that it is an important gene in E. histolytica because it was present in the isolates from hamsters that developed liver damage.
Distribution of Public Service and Individual Job Performance in Peruvian Municipality
Ramirez-ASIS, Edwin,Huerta-SOTO, Rosario,Nivin-VARGAS, Laura,Huaranga-TOLEDO, Hober,Valera-AREDO, Julio,Flores-LEIVA, Victor Korea Distribution Science Association 2022 유통과학연구 Vol.20 No.10
Purpose: This research aims to find the link between public service Distribution and individual job performance in the provincial municipality. Research design, data, and methodology: This is a quantitative approach study with a non-experimental and correlational design. The sample consisted of 140 employees appointed and hired by the provincial municipality of Huaraz. For data collection, Two questionnaires with an ordinal Likert-type scale and the Rho Spearman correlation coefficient were used to assess the link between the research variables., For Analysis: two questionnaires with an ordinal Likert-type scale and the Rho Spearman correlation coefficient were used to determine the connection between the research variables. Results: It was determined that both variables have a high degree of correlation (0.725), indicating a direct and significant relationship between the Distribution of public service and skill performance in the provincial municipality (0.614). Conclusion: Finally, this allows us to conclude that the institutional context is essential; that is, there is a significant correlation between the PSM and contextual performance in the provincial municipality of Huaraz, which has a Rho Spearman value of 0.723.
Gonzalez-Cantu, Cynthia Minerva,Moreno-Pena, Pablo Juan,Salazar-Lara, Mayela Guadalupe,Garcia, Pablo Patricio Flores,Montes-Tapia, Fernando Felix,Cervantes-Kardasch, Victor Hugo,Castro-Govea, Yanko Korean Society of Plastic and Reconstructive Surge 2021 Archives of Plastic Surgery Vol.48 No.5
Epignathus is a rare congenital orofacial teratoma that arises from the sphenoid region of the palate or the pharynx. It occurs in approximately 1:35,000 to 1:200,000 live births representing 2% to 9% of all teratomas. We present the case of a newborn of 39.4 weeks of gestation with a tumor that occupied the entire oral cavity. The patient was delivered by cesarean section. Oral resection was managed by pediatric surgery. Plastic surgery used virtual 3-dimensional models to establish the extension, and depth of the tumor. Bloc resection and reconstruction of the epignathus were performed. The mass was diagnosed as a mature teratoma associated with cleft lip and palate, nasoethmoidal meningocele that conditions hypertelorism, and a pseudomacrostoma. Tridimensional technology was applied to plan the surgical intervention. It contributed to a better understanding of the relationships between the tumor and the adjacent structures. This optimized the surgical approach and outcome.