Functional Gradient Materials : REACTIVE HOT COMPACTION OF FUNCTIONALLY GRADED COMPOSITES

A . Gomez,H . F . Wang,H . Doty,R . Abbaschian 대한금속재료학회 ( 구 대한금속학회 ) 1995 Advanced Material and Processing Vol.2 No.-

Study of the most frequent natural tooth colors in the Spanish population using spectrophotometry

Gomez-Polo, Cristina,Gomez-Polo, Miguel,Martinez Vazquez de Parga, Juan Antonio,Celemin Vinuela, Alicia The Korean Academy of Prosthodonitics 2015 The Journal of Advanced Prosthodontics Vol.7 No.6

PURPOSE. To identify the most frequent natural tooth colors using the Easyshade Compact (Vita -Zahnfabrik) spectrophotometer on a sample of the Spanish population according to the 3D Master System. MATERIALS AND METHODS. The middle third of the facial surface of natural maxillary central incisors was measured with an Easyshade Compact spectrophotometer (Vita Zahnfabrik) in 1361 Caucasian Spanish participants aged between 16 and 89 years. Natural tooth color was recorded using the 3D Master System nomenclature. The program used for the present descriptive statistical analysis of the results was SAS 9.1.3. RESULTS. The results show that the most frequent dental color in the total sample studied is 3M1 (7.05%), followed by the intermediate shade 1M1.5 (6.91%) and 2L1.5 (6.02%). CONCLUSION. According to the research methodology used, and taking into account the limitations of this study, it can be proposed that the most frequent color among the Spanish population is 3M1; the most common lightness group is 2; the most frequent hue group according to the 3D Master System is M and the most frequent chroma group is 1.5.

Poster Session : PS 0725 ; Rheumatology ; Case Report: Elderly-Onset Systemic Lupus Erythematosus

( Ruben Gomez ),( Ericka Carrillo ),( Filiberto Gomez ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1

Elderly onset SLE contributes to 10% of all SLE and is considered a rare disease, the signs and symptoms are common to other more frequent diseases in this age so the differential diagnosis is wide and could represent a great clinical challenge. We report two cases, one patient presented with data of serositis, acute renal failure and glomerulonephritis; while the other had evidence of cerebral vasculitis. Case 1: 60 year old male with 6 months of asthenia, malaise and early-morning bilateral limb edema, received treatment with diuretics without improvement, presenting arterial hypertension. He was admitted with IV NYHA class Congestive HF and left pleural effusion. Laboratory reported Hb 14. 3 g/dl, leucocytes 5750 (normal differential count), ESR of 50 mm/h, creatinine 2. 1 mg/dl, urea 60 mg/dl, urinalysis was positive for albumin, hemoglobin and granular casts; GFR 35 ml/min, and 24-hour albuminuria 3. 8 g. ECHO showed a 68% LVEF and 150 ml pericardial effusion. Immunologic profi le showed positive ANA (1:140), positive anti-dsDNA (1:60), and positive anti-SM (1:65). Kidney biopsy showed focal-segmental glomerulonephritis. Case 2: 68 year-old female positive for Diabetes Mellitus and Arterial Hypertension treated with glibenclamide and captopril. She presented at ER with diplopia, bilateral internuclear ophthalmoplegia and bilateral limb paraparesis, initial head CT-scan was normal, so she was admitted to the hospital. A second simple and contrasted head CT-scan was also normal, then the head MRI showed vasculitis and the brain SPECT revealed hypocaptating areas in midbrain, frontal and parietal cortex. Laboratory reported Hb 13. 3 g/dl, leucocytes 2578, glycose 145 mg/dl, normal creatinine, hepatic profi le and urinalysis. Immunologic profi le reported negative ANA, positive anti-dsDNA (1:95) and positive anti-SM (1:120). Both patients received treatment with Cyclophosphamide and Methylprednisolone with great response.

스페인 정치선전에 언어학전 연구 (1977-1986)

Rojas, Eva Gomez,Eva Gomez Rojas 한국외국어대학교 1988 한국외국어대학교 논문집 Vol.21 No.1

Mold Filling Analysis of an Alignment Structure in Micro Hot Embossing

Gomez, Juan A.,Conner, Glenn T.,Chun, Du Hwan,Kim, Yoo-Jae,Song, In-Hyouk,You, Byoung Hee THE KOREAN FIBER SOCIETY 2014 FIBERS AND POLYMERS Vol.15 No.6

Hot embossing is one of the most popular fabrication methods to replicate polymer microdevices in the field of micro-fluidics and micro-optics. Numerical models for hot embossing were constructed to analyze the advance of flow front of the molten polymer using commercial software, DEFORM-2D. A hemisphere tipped post, used as an alignment structure in the assembly of micro devices, was modeled to demonstrate the flow behavior of the molten polymer in mold filling. Hot embossing experiments were performed to validate the feasibility of the numerical models. Most of the simulations showed agreement with experiments. The mold filling was estimated with the heights of the embossed posts in the analysis. No significant mold filling with the molten polymer was observed below the glass transition temperature of $105^{\circ}C$. The mold cavity was completely filled with the polymer at the molding temperature of $137.5^{\circ}C$ and $150^{\circ}C$ while the embossing forces were 300, 600, and 900 N.

Effects on the Proton Conduction Limiting Barriers and Trajectories in BaZr_0.875Y_0.125O₃ Due to the Presence of Other Protons

Gomez, Maria A.,Fry, Dana L.,Sweet, Marie E. The Korean Ceramic Society 2016 한국세라믹학회지 Vol.53 No.5

Kinetic Monte Carlo (KMC) and graph searches show that proton conduction limiting barriers and trajectories in $BaZr_{0.875}Y_{0.125}O_3$ are affected by the presence of other protons. At 1000 K, KMC limiting conduction barriers increase from 0.39 eV to 0.45 eV as the proton number is increased. The proton-proton radial distribution begins to rise at $2{\AA}$ and peaks at $4{\AA}$, which is half the distance expected, based on the proton concentration. Density functional theory (DFT) calculations find proton/proton distances of 2.60 and $2.16{\AA}$ in the lowest energy two-proton configurations. A simple average of the limiting barriers for 7-10 step periodic long range paths found via graph theory at 1100 K shows an increase in activation barrier from 0.32 eV to 0.37 eV when a proton is added. Both KMC and graph theory show that protons can affect each other's pathways and raise the overall conduction barriers.

Gymnodinioid Dinoflagellates (Gymnodiniales, Dinophyceae) in the Open Pacific Ocean

Gomez, Fernando The Korean Society of Phycology 2007 ALGAE Vol.22 No.4

Records of selected gymnodinioid dinoflagellates from the open waters in the vicinity of the Kuroshio and Oyashio Currents, the Philippine, Celebes, Sulu and South China Seas, western and central equatorial and southeast Pacific Ocean are described and illustrated. The species Gymnodinium fusus Schütt, Gyrodinium falcatum Kofoid et Swezy, G. caudatum Kofoid et Swezy, G. sugashimanii J. Cachon et al. and Pseliodinium vaubanii Sournia are considered to be morphotypes of a single species, that until further studies can establish the correct genus, are named G. falcatum. This study is the first to record individuals of G. falcatum with very long curly extensions. Other gymnodinioid dinoflagellates that showed bifurcated hyposomes may be related to Gyrodinium bifurcatum Kofoid et Swezy or cells of thecate dinoflagellates exuviated from their thecae. Some specimens showed a rigid cover, although no discernible thecal plates. In this group, the most common species was Ptychodiscus noctiluca Stein and, for the first time, a micrograph of a tentative specimen of the genus Berghiella Kofoid et Michener is reported. The validity of the genera Berghiella and Balechina Loeblich Jr. et Loeblich III with thick cell covers is discussed. Several species with apical extensions, other unknown taxa with distinctive shapes, and colonial forms are illustrated. The diversity of gymnodinioid dinoflagellates is underinvestigated in the open ocean.

Combination of an Enzymatically Hydrolyzed Yeast and Yeast Culture with a Direct-fed Microbial in the Feeds of Broiler Chickens

Gomez, S.,Angeles, M.L.,Mojica, M.C.,Jalukar, S. Asian Australasian Association of Animal Productio 2012 Animal Bioscience Vol.25 No.5

A balance trial experiment was carried out to evaluate the potential relationship between an enzymatically hydrolyzed yeast (EHY) and yeast culture combined with a live Bacillus subtilis (Bs) on the productive parameters, ileal digestibility, retention of nutrient and energy and villus morphology in broilers. Seventy two 28 d old, Ross B308 male broilers were assigned to a factorial combination of 2 levels of EHY (0 and 1 kg/ton of feed) and 2 levels of Bs (0 and 125 g/ton of feed). The experiment lasted 2 weeks. Several treatment interactions were observed. EHY-fed broilers showed the lowest feed intake and feed conversion ratio whereas Bs-fed broilers showed the highest feed intake and intermediate feed conversion ratio (EHY and BS interaction, p<0.05). Also, EHY-fed broilers had greater ileal digestibility of dry matter (EHY and BS interaction, p<0.01) and energy (EHY and BS interaction, p<0.05) but these responses were counterbalanced by the combination of EHY and Bs. The thickness of the mucosa was similar between the control and EHY-fed broilers, but was lowest when Bs was added alone (EHY and BS interaction, p<0.01). The thickness of the villus was greater in EHY plus Bs-fed broilers, intermediate for the control and lower for Bs or EHY-fed broilers (EHY and BS interaction, p<0.05). The area of the villus was greater in the control and EHY plus Bs-fed broilers (EHY and BS interaction, p<0.05). In addition, EHY-fed broilers showed greater breast yield and nitrogen retention (p<0.01) and ashes digestibility (p<0.05). On the other hand, Bs-fed broilers had greater carcass and breast weight, nitrogen retention, energy excretion and villus height (p<0.05). In summary, EHY and Bs enhanced some growth, carcass and nutrient retention responses, but did not show any synergic relationship in these responses. Opposite to this, the results suggest that the positive effect of EHY on the feed conversion and digestibility of nutrients were counterbalanced by the addition of Bs.

Newyork Approaches to Genome Annotation and the Challenge of Anopheles gambiae

Gomez, Shawn M. Korean Society of Molecular Biology 2003 Molecules and cells Vol.15 No.2

The Dinoflagellate Genera Brachidinium, Asterodinium, Microceratium and Karenia in the Open SE Pacific Ocean

Gomez, Fernando The Korean Society of Phycology 2006 ALGAE Vol.21 No.4

The morphometry and distribution of the unarmoured dinoflagellates Brachidinium capitatum F.J.R. Taylor, Asterodinium gracile Sournia, Microceratium orstomii Sournia and the toxic species Karenia papilionacea Haywood et Steidinger have been investigated in open waters of the SE Pacific Ocean. The genus Microceratium Sournia is recorded for the first time since the initial description. These taxa showed a high morphological similarity and they may correspond to life stages of a highly versatile single species that is able to project body extensions. Karenia papilionacea showed the higher abundance in the surface waters of the more productive areas (the Marquesas Archipelago and the Perú-Chile Current). Brachidinium capitatum and K. papilionacea often co-occurred, predominating B. capitatum in offshore surface waters. Asterodinium gracile was recorded at the bottom of the euphotic zone (down to 210 m depth), with a shallower distribution in more productive areas. Intermediate specimens of Asterodinium-Brachidinium-Karenia, with variable disposition and size of the body extensions were illustrated.