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OALib Journal期刊

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匹配条件： “Eden Rodríguez-Flores” ，找到相关结果约31617条。
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COVID-19 Times: Impact on Information Generation and Data Sharing [PDF]
Eden Rodríguez-Flores, Saúl Gómez-Manzo, Jaime Marcial-Quino, Roberto Arreguín-Espinosa, Eduardo Rodríguez-Bustamante
Advances in Internet of Things (AIT) , 2022, DOI: 10.4236/ait.2022.123005

Abstract: At the beginning of 2020, human activities were interrupted by a new virus, identified as SARS-CoV-2, which causes COVID-19 disease. The scientific area was no exception: for a certain period, researchers around the world were forced to leave their laboratories and work remotely. There was a global necessity for finding alternatives focused on generating knowledge and publishing data, so repositories of scientific information, such as databases, represented strong support. In the specific case of life sciences, different strategies allowed rapid compilation of data and its sharing worldwide. Therefore, in this work, the impact of the SARS-CoV-2 pandemic on the amount of peer-reviewed and published papers during COVID-19 times was analyzed along with the role of databases. Our results pointed out that an increase in the number of papers belonging to different knowledge fields took place, with the medical field being the most significant. On the other hand, the complete genome of the new virus was sequenced, and repositories were created with sufficient data for monitoring, preventing, and controlling its dissemination. This was the case for the generation of vaccines in addition to potential candidates for drugs against COVID-19. However, although in 2021, vaccines allowed us to gradually return to our activities, databases and the generation of other repositories remain a key point for facing new strains and adapting

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De refranes y cantares tiene el pueblo mil millares
Laura Alfonso Soler,María José Seguí Rodríguez-Flores
Foro de Profesores de E/LE , 2010,

Abstract: Esta experiencia trata de acercarnos a la palabra para mejorar las competencias comunicativas orales y escritas de los nuevos hablantes de nuestro idioma. El uso de los refranes se incluye en el ámbito del nivel popular; en él abunda la subjetividad, se economizan considerablemente los medios lingüísticos y aparecen numerosas apelaciones al oyente. Relativo a esto podemos se alar que los proverbios y refranes son expresiones de contenido moral y didáctico que se transmiten de manera oral.

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Are hummingbirds generalists or specialists? Using network analysis to explore the mechanisms influencing their interaction with nectar resources
Claudia I. Rodríguez-Flores,Juan Francisco Ornelas,María del Coro Arizmendi,Susan Wethington
- , 2019, DOI: 10.1371/journal.pone.0211855

Abstract:

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Compact FPGA hardware architecture for public key encryption in embedded devices
Claudia Feregrino-Uribe,Ignacio Algredo-Badillo,Luis Rodríguez-Flores,Miguel Morales-Sandoval,René Cumplido
- , 2018, DOI: 10.1371/journal.pone.0190939

Abstract:

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Pool of Biological Resources for Potential Applications in Solid State Fermentation Obtained from a Forest Plantation of Pinus pseudostrobus Lindl, Mexico [PDF]
E. Rodríguez-Bustamante, E. Rodríguez-Flores, F. Rojas-García, A. S. Callejas-Iberri, L. M. Gallardo-Roldán, S. Gómez-Manzo, J. Marcial-Quino, M. L. Macías-Rubalcava, F. Lazcano-Pérez, R. Arreguín-Espinosa
Advances in Microbiology (AiM) , 2016, DOI: 10.4236/aim.2016.614096

Abstract: A forest plantation, product of the reforestation of pine trees, represented a pool of biological resources for the implementation of a solid state fermentation process. The trees were identified as Pinus pseudostrobus Lindl from which lignocellulosic material in the form of pine needles was collected. Soil fungi, responsible for plant litter decomposition, were cultured at laboratory conditions and tested for their ability to grow on cellulose and hemicellulose as the sole carbon sources. A fungal strain, belonging to the genus Penicillium, was selected for growing it on pine needles as the substrate in a solid state culture. After following the culture for six days, the newly isolated strain exhibited a much higher capacity for spore production and holocellulose degradation, compared to a purchased strain of Penicillium chrysogenum and two control conditions. This work marks the beginning of future studies focused on commercial applications and represents the first report of a biotechnological process based on pine needles and their degradation by an ascomycetes species belonging to the genus Penicillium.

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Salt lakes of La Mancha (Central Spain): A hot spot for tiger beetle (Carabidae, Cicindelinae) species diversity
Ernesto F. Aguirre-Ruiz,Jorge Gutiérrez-Rodríguez,Mario García-París,Paula C. Rodríguez-Flores
- , 2016, DOI: 10.3897/zookeys.561.6042

Abstract:

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IPHAS and the symbiotic stars. II. New discoveries and a sample of the most common mimics
R. L. M. Corradi,M. Valentini,U. Munari,J. E. Drew,E. R. Rodríguez-Flores,K. Viironen,R. Greimel,M. Santander-García,L. Sabin,A. Mampaso,Q. Parker,K. De Pew,S. E. Sale,Y. C. Unruh,J. S. Vink,P. Rodríguez-Gil,M. J. Barlow,D. J. Lennon,P. J. Groot,C. Giammanco,A. A. Zijlstra,N. A. Walton
Physics , 2009, DOI: 10.1051/0004-6361/200913231

Abstract: In a previous paper [arXiv:0712.2391], we presented the selection criteria needed to search for symbiotic stars in IPHAS, the INT Halpha survey of the Northern Galactic plane. IPHAS gives us the opportunity to make a systematic, complete search for symbiotic stars in a magnitude-limited volume. Follow-up spectroscopy at different telescopes worldwide of a sample of sixty two symbiotic star candidates is presented. Seven out of nineteen S-type candidates observed spectroscopically are confirmed to be genuine symbiotic stars. The spectral type of their red giant components, as well as reddening and distance, were computed by modelling the spectra. Only one new D-type symbiotic system, out of forty-three candidates observed, was found. This was as expected (see discussion in our paper on the selection criteria). The object shows evidence for a high density outflow expanding at a speed larger than 65 km/s. Most of the other candidates are lightly reddened classical T Tauri stars and more highly reddened young stellar objects that may be either more massive young stars of HAeBe type or classical Be stars. In addition, a few notable objects have been found, such as three new Wolf-Rayet stars and two relatively high-luminosity evolved massive stars. We also found a helium-rich source, possibly a dense ejecta hiding a WR star, which is surrounded by a large ionized nebula.

Abstract: Large clades of angiosperms are often characterized by diverse interactions with pollinators, but how these pollination systems are structured phylogenetically and biogeographically is still uncertain for most families. Apocynaceae is a clade of >5300 species with a worldwide distribution. A database representing >10 % of species in the family was used to explore the diversity of pollinators and evolutionary shifts in pollination systems across major clades and regions

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A Fatigue Analysis of a Hydraulic Francis Turbine Runner [PDF]
Miriam Flores, Gustavo Urquiza, José María Rodríguez
World Journal of Mechanics (WJM) , 2012, DOI: 10.4236/wjm.2012.21004

Abstract: In this work, the estimation of crack initiation life of a hydraulic Francis turbine runner is presented. The life prediction is based on the local strain approach to predict the initiation life. First, the analysis is carried out in air and in water condition and the runner’s natural frequencies were calculated using the finite element (FE) method. The analysis in air is compared with experimental analysis in order to have a representative model of real runner and subsequently the numerical analysis was perform in water. In the case of the runner immersed in water, the added mass effect due to the fluid structure interaction (FSI) is considered. Second, the static and dynamic stresses were calculated according to life estimation. For the calculation of static stresses, the pressure distribution of water and the centrifugal forces were applied to the runner. The dynamic stresses were estimated for interactions between the guide vane and the runner. Lastly, the estimation of the crack initiation life of the runner was obtained.

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Diversity, Distribution and Composition of the Bivalvia Class on the Rocky Intertidal Zone of Marine Priority Region 32, Mexico [PDF]
Rafael Flores-Garza, Victor López-Rojas, Pedro Flores-Rodríguez, Carmina Torreblanca Ramírez
Open Journal of Ecology (OJE) , 2014, DOI: 10.4236/oje.2014.415080

Abstract: The Bivalvia Class, is widely represented in marine ecosystems and is economically important; this research focused on this class and was carried out by sampling the rocky intertidal zone of seven sites located in the Marina Region Priority No. 32, Guerrero, Mexico, where the National Commission for the Knowledge and Use of Biodiversity reported lack of knowledge on marine species living there. The objectives were to examine species richness associated with the rocky intertidal zone, determine how the community is composed by the representation of families based on species richness and abundance, know the distribution of the species, analyze the structure sizes of populations and estimate the diversity index. Sampling was conducted at seven sites; the sampling unit was one square meter and the sampling area was 10 m2. 32 species were identified. Four species are new records for the Mexican Pacific Transitional: one for the state of Guerrero and one for Marine Priority Region 32. Arcidae and Mytilidae Families were better represented in species richness and Chamidae Family was the best represented in abundance. Chama coralloides was considered to be the representative species of the area; Striostrea prismatica showed the greatest size. The diversity index was estimated (H' = 3.65 bits/individuals). Species richness is high and corresponds to that expected in a tropical area.

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