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Rios-Rincon, F.G.,Estrada-Angulo, A.,Plascencia, A.,Lopez-Soto, M.A.,Castro-Perez, B.I.,Portillo-Loera, J.J.,Robles-Estrada, J.C.,Calderon-Cortes, J.F.,Davila-Ramos, H. Asian Australasian Association of Animal Productio 2014 Animal Bioscience Vol.27 No.1
Forty-eight Pelibuey${\times}$Katahdin male intact lambs ($23.87{\pm}2.84$ kg) were used in an 84-d feeding trial, with six pens per treatment in a $2{\times}2$ factorial design arrangement. The aim of the study was to evaluate the interaction of two dietary energy levels (3.05 and 2.83 Mcal/kg ME) and two dietary protein levels (17.5% and 14.5%) on growth performance, dietary energetics and carcass traits. The dietary treatments used were: i) High protein-high energy (HP-HE); ii) High protein-low energy (HP-LE); iii) Low protein-high energy (LP-HE), and iv) Low protein-low energy (LP-LE). With a high-energy level, dry matter intake (DMI) values were 6.1% lower in the low-protein diets, while with low-energy, the DMI values did not differ between the dietary protein levels. Energy levels did not influence the final weight and average daily gain (ADG), but resulted in lower DMI values and higher gain efficiencies. No effects of protein level were detected on growth performance. The observed dietary net energy (NE) ratio and observed DMI were closer than expected in all treatments and were not affected by the different treatments. There was an interaction (p<0.03) between energy and protein level for kidney-pelvic and heart fat (KPH), KPH was higher in lambs fed high energy and high protein diet but not in high energy and low protein diet. The KPH was increased (20.2%, p = 0.01) in high-energy diets, while fat thickness was increased (21.7%, p = 0.02) in high-protein diets. Therefore, it is concluded that dietary energy levels play a more important role in feed efficiency than protein levels in finishing lambs with a high-energy diet (>2.80 Mcal/kg ME). Providing a level of protein above 14.5% does not improves growth-performance, dietary energetics or carcass dressing percentage.
Genetic diversity evolution in the Mexican Charolais cattle population
Rios-Utrera, Angel,Montano-Bermudez, Moises,Vega-Murillo, Vicente Eliezer,Martinez-Velazquez, Guillermo,Baeza-Rodriguez, Juan Jose,Roman-Ponce, Sergio Ivan Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.7
Objective: The aim was to characterize the genetic diversity evolution of the registered Mexican Charolais cattle population by pedigree analysis. Methods: Data consisted of 331,390 pedigree records of animals born from 1934 to 2018. Average complete generation equivalent, generation interval, effective population size (N<sub>e</sub>), and effective numbers of founders (f<sub>e</sub>), ancestors (f<sub>a</sub>), and founder genomes (N<sub>g</sub>) were calculated for seven five-year periods. The inbreeding coefficient was calculated per year of birth, from 1984 to 2018, whereas the gene contribution of the most influential ancestors was calculated for the latter period. Results: Average complete generation equivalent consistently increased across periods, from 4.76, for the first period (1984 through 1988), to 7.86, for the last period (2014 through 2018). The inbreeding coefficient showed a relative steadiness across the last seventeen years, oscillating from 0.0110 to 0.0145. During the last period, the average generation interval for the father-offspring pathways was nearly 1 yr. longer than that of the mother-offspring pathways. The effective population size increased steadily since 1984 (105.0) and until 2013 (237.1), but showed a minor decline from 2013 to 2018 (233.2). The population displayed an increase in the f<sub>a</sub> since 1984 and until 2008; however, showed a small decrease during the last decade. The effective number of founder genomes increased from 1984 to 2003, but revealed loss of genetic variability during the last fifteen years (from 136.4 to 127.7). The f<sub>a</sub>:f<sub>e</sub> ratio suggests that the genetic diversity loss was partially caused by formation of genetic bottlenecks in the pedigree; in addition, the N<sub>g</sub>:f<sub>a</sub> ratio indicates loss of founder alleles due to genetic drift. The most influential ancestor explained 1.8% of the total genetic variability in the progeny born from 2014 to 2018. Conclusion: Inbreeding, N<sub>e</sub>, f<sub>a</sub>, and N<sub>g</sub> are rather beyond critical levels; therefore, the current genetic status of the population is not at risk.
Area-power efficient lighting unit architecture based on hardware sharing
Rios, M. A.,Hong, S. H. IET 2012 Electronics letters Vol.48 No.12
<P>A shared lighting unit architecture suitable for mobile 3D graphics is presented. Sharing of resources is achieved by reusing a unitary vector operation, and diffuse and specular components calculation. Balance between area and power dissipation was compared with a more prevalent parallel unit architecture implementation. Results indicate that parallel implementations of the proposed shared units lead to much better area × power efficiency as more of these units are used for higher processing performance.</P>
Jorge Rios-Zermeno,Leoncio Alberto Tovar-Romero,Gerardo Cano-Velazquez,Ricardo Marian-Magana,Marcos Sangrador-Deitos,Juan Luis Gomez-Amador 대한뇌혈관외과학회 2023 Journal of Cerebrovascular and Endovascular Neuros Vol.25 No.3
Intracranial aneurysms arise in 1-2% of the population and usually present as hemorrhagic strokes. Spontaneous thrombosis of a ruptured intracranial aneurysm occurs in 1-3% and most commonly in giant aneurysms, with complete thrombosis in just 13-20% of the cases. Thrombosis of smaller aneurysms is rare. Here we present a case of a patient who presented with a ruptured intracranial aneurysm that subsequently thrombosed, discovering a neighboring de-novo aneurysm during follow-up. We hypothesized that after thrombosis, the hemodynamic characteristics that contributed to the formation of the first aneurysm were replicated.
Marquez-Rios, Enrique,Cota-Arriola, Octavio,Villalba-Villalba, Ana Gloria,Ezquerra-Brauer, Josafat Marina,Ocano-Higuera, Victor Manuel,Lopez-Corona, Betzabe Ebenhezer,Torres-Arreola, Wilfrido 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.4
Chymotrypsin was purified from jumbo squid hepatopancreas (HP) with 2.4-fold and yield 1.9%, and characterized with a molecular weight of 31 kDa, as estimated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Chymotrypsin effect over collagen extracted from the mantle, fins and arms of the jumbo squid was evaluated. The enzyme exhibited the maximum activity at pH 7 and $65^{\circ}C$ using Suc-Ala-Ala-Pro-Phe-p-nitroanilide (SAAPNA) as a substrate and it was identified using the specific inhibitors N-tosyl-L-phenylalaninechloromethyl ketone (TPCK) and phenyl methyl sulfonyl fluoride (PMSF), showing residual activities of 6% and 0%, respectively. Furthermore, high activity was observed in the pH range of 4.0 to 8.0. Purified enzyme showed a moderate in vitro activity using muscle collagen as a substrate. Although further research is needed, the results suggest that the enzyme has a potential application where acidic or slightly alkaline conditions are needed.
Francisconi-dos-Rios, Luciana Favaro,Tavares, Johnny Alexandre Oliveira,Oliveira, Luanderson,Moreira, Jefferson Chaves,Nahsan, Flavia Pardo Salata The Korean Academy of Conservative Dentistry 2020 Restorative Dentistry & Endodontics Vol.45 No.1
The restorative procedure in posterior teeth involves clinical steps related to professional skill, especially when using the incremental technique, which may fail in the long term. A recent alternative is bulk-fill resins, which can reduce polymerization shrinkage, decreasing clinical problems such as marginal leakage, secondary caries, and fracture. This scientific study aims to report a clinical case using bulk-fill resin with an occlusal matrix. As determined in the treatment plan, an acrylic resin matrix was produced to establish an improved oral and aesthetic rehabilitation of the right mandibular first molar, which presented a carious lesion with dentin involvement. The occlusal matrix is a simple technique that maintains the original dental anatomy, showing satisfactory results regarding function and aesthetic rehabilitation.