116 research outputs found
Effect of microstructural evolution on magnetic property of Mn-implanted p-type GaN
The effect of microstructural evolution on magnetic property of Mn-implanted p-type GaN was discussed. The effect was studied using cross-sectional transmission electron microscopy (TEM). It was shown that the higher-temperature annealing reduced the ferromagnetic signal and produced antiferromagnetic Mn-nitride nanoclusters.open161
Distinctive Genetic Activity Pattern of the Human Dental Pulp between Deciduous and Permanent Teeth
published_or_final_versio
Photographic protocol for image acquisition in craniofacial microsomia
Craniofacial microsomia (CFM) is a congenital condition associated with orbital, mandibular, ear, nerve, and soft tissue anomalies. We present a standardized, two-dimensional, digital photographic protocol designed to capture the common craniofacial features associated with CFM
Three-dimensional photographic analysis of the face in European adults from southern Spain with normal occlusion: reference anthropometric measurements
Background: Recent non-invasive 3D photography method has been applied to facial analysis, offering numerous
advantages in orthodontic. The purpose of this study was to analyze the faces of a sample of healthy European
adults from southern Spain with normal occlusion in order to establish reference facial soft tissue anthropometric
parameters in this specific geographic-ethnic population, as well as to analyze sexual dimorphism.
Methods: A sample of 100 healthy adult volunteers consisting of 50 women (mean age, 22.92 ± 1.56 years) and 50
men (mean age, 22.37 ± 2.12 years) were enrolled in this study. All participants had normal occlusion, skeletal Class I,
mesofacial pattern, and healthy body mass index. Three-dimensional photographs of the faces were captured noninvasively
using Planmeca ProMax 3D ProFace®. Thirty landmarks related to the face, eyes, nose, and orolabial and chin
areas were identified.
Results: Male displayed higher values in all vertical and transversal dimensions, with the exception of the lower lip
height. Larger differences between sexes were observed in face, mandible, and nose. Male also had higher values in
the angular measurements which referred to the nose. No sex differences were found in transverse upper lip
prominence or transverse mandibular prominence. No differences were found in the ratio measurements, with the
exception of intercantal width/nasal width, which was higher in women than in men.
Conclusions: Reference anthropometric measurements of facial soft tissues have been established in European
adults from southern Spain with normal occlusion. Significant sexual dimorphism was found, with remarkable
differences in size between sexe
Insulin-like growth factor levels in cord blood, birth weight and breast cancer risk
Breast cancer incidence and birth weight are higher among Caucasian than Asian women, and birth size has been positively associated with breast cancer risk. Pregnancy hormone levels, however, have been generally lower in Caucasian than Asian women. We studied components of the insulin-like growth factor (IGF) system in cord blood from 92 singleton babies born in Boston, USA, and 110 born in Shanghai, China, in 1994–1995. Cord blood IGF-1 was significantly higher among Caucasian compared with Chinese babies (P<10−6). The opposite was noted for IGF-2 (P∼10−4). IGF-1 was significantly positively associated with birth weight and birth length in Boston, but not Shanghai. In contrast, stronger positive, though statistically non-significant, associations of IGF-2 with birth size were only evident in Shanghai. The associations of birth weight and birth length were positive and significant in taller women (for IGF-1 in Boston P∼0.003 and 0.03, respectively; for IGF-2 in Shanghai P∼0.05 and ∼0.04, respectively), among whom maternal anthropometry does not exercise strong constraints in foetal growth. The documentation of higher cord blood levels of IGF-1, a principal growth hormone that does not cross the placenta, among Caucasian than in Asian newborns is concordant with breast cancer incidence in these populations
The relationship between body mass index and lifestyle in a Brazilian adult population: a cross-sectional survey
Periodontal regeneration in swine after cell injection and cell sheet transplantation of human dental pulp stem cells following good manufacturing practice
A randomized, open-label study comparing low-dose clevudine plus adefovir combination therapy with clevudine monotherapy in naïve chronic hepatitis B patients
Laparoscopic extraperitoneal rectal cancer surgery: the clinical practice guidelines of the European Association for Endoscopic Surgery (EAES)
THERMAL PLASMA CHEMICAL VAPOR-DEPOSITION FOR SIC POWDERS FROM SICH3CL3-H2
Ultrafine beta-SiC powders were synthesized by introducing trichloromethylsilane and hydrogen into the high temperature RF thermal plasma argon gas. Powders were characterized by XRD, TEM, TGA, FT-IR and wet chemical analysis. Two different positions of reactant gas injection, i.e., upstream and downstream of the plasma flame, were compared in terms of the powder characteristics. The optimum concentration of hydrogen was found out to be about 3 to 4 mol% for the upstream injection. Amorphous SiC with free carbon was formed when the hydrogen concentration was lower than optimum and beta-SiC with free silicon was formed when it was higher than the optimum. For the downstream injection, free silicon formation was not significant and free carbon formation was suppressed when the hydrogen concentration was higher than 7 mol%. Chemical reaction pathways were suggested which could explain these observations.X118sciescopu
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