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Convective drying of yellow discarded onion (Angaco INTA): Modelling of moisture loss kinetics and effect on phenolic compounds

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Information Processing in Agriculture 2020年第2期7卷 333-341页

作者： marıa celia Roman maria Paula Fabani Lorena Celina Luna Gabriela Egly Feresin German Mazza Rosa Rodriguez Instituto de Ingeniera Quımica-Grupo Vinculado al PROBIEN(CONICET-UNCo) Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Biotecnologıa Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Investigacio´n y Desarrollo en Ingenierıa de Procesos Biotecnologı´a y Energı´as AlternativasCONICET-Universidad Nacional del ComahueNeuquenArgentina

The Angaco INTA onion variety is the most cultivated and its production,mostly is destined for *** to their high-quality standards of these markets,many onions are *** drying process seems to be a promising solution that not only give added value to this product,but also extend shelf *** this work,the influence of convective drying process,at 60 and 70C,on the kinetic behavior,antioxidant activity,phenolic and flavonoid contents of discarded onion slices were *** that,the Angaco INTA onion is a variety genetically developed to have shorter cultivation times in this region;the phenolic compounds content in this onion variety,the drying kinetics and its influence on this content have never been *** this study,the phenolic compounds contributions to dehydrated product quality was evaluated,observing that the convective drying increased the total soluble phenolic and flavonoid contents and antioxidant properties for both temperatures,being highest at 70*** rehydration ratios were similar to the slices dried at 60 and 70*** models were used for describing the obtained drying curve equation of onion slices,being the Midilli’s model the one that presented the best ***’s model of water diffusion fitted all experimental data with acceptable correlation *** the achieved findings,70C is the optimum temperature to produce the dehydrated Angaco INTA onion.

关键词： Drying Antioxidant activity Phenolic content Kinetic model

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New Mathematical Tools for the Study of the DNA Structure

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Journal of Applied Mathematics and Physics 2021年第8期9卷 1896-1903页

作者： Juan Antonio Nieto Constanza celia Nieto-marín Nayeli Nieto-marín Itzel Nieto-marín Facultad de Ciencias Fsico-Matemáticas de la Universidad Autónoma de Sinaloa Culiacán Sinaloa México

We propose a number of new mathematical tools for the study of the DNA structure. In particular, we establish a connection between the DNA molecule and the Grassmann-Plücker coordinates, which, in both in mathematics... 详细信息

关键词： DNA Structure (4 + 4)-Dimensions Grassmann-Plücker Relations

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<i>Chlamydia trachomatis</i>in a girl suspected of sexual abuse in the city of Córdoba, Argentina

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Case Reports in Clinical Medicine 2014年第2期3卷 97-100页

作者： Ana Ximena Kiguen Graciela Ochonga Fernando Venezuela marina Monetti maría celia Frutos Jessica Mosmann Cecilia Cuffini Cátedra de Odontopediatría de la Facultad de Odontología Universidad Nacional de Córdoba Córdoba Argentina Facultad de Ciencias Médicas Instituto de Virología “Dr. JM Vanella” Universidad Nacional de Córdoba Córdoba Argentina

Chlamydia trachomatis (***) infections are the most prevalent bacterial sexually transmitted infections worldwide. They are often asymptomatic and therefore underdiagnosed as there is no routine screening surveillance. This case supports the possibility of sexual abuse as a route of transmission of ***. It is well known that nearly one third of sexually assaulted children are at risk for infection by a sexually transmitted agent. This is why in cases of sexual abuse, it is standardized that *** positive results by Nucleic Acid Amplification Techniques (NAATs) should be confirmed looking for another *** target;for this reason, we used a Polimerase Chain Reaction (PCR) directed to cryptic plasmid of ***. Confirmation was specified by the use of another PCR with a different genetic target (ompA) and sequencing. We concluded that our patient’s oral lesions were probably originated by her father’s sexual abuse.

关键词： Chlamydia trachomatis Sexual Abuse Girl Argentina

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Synthesis and Characterization of Organic Bio-Absorbents Coming from Sugarcane Bagasse

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Journal of Surface Engineered Materials and Advanced Technology 2016年第3期6卷 125-133页

作者： Israel Hernández Romero Juan Rodrigo Laguna Camacho Raúl Enrique Contreras Bermúdez Francisca Sandoval Reyes Erika Gaona Santiago celia marí a Calderón Ramón Lizeth Rí os Velasco Jesús Enrique Escalante martí nez Facultad de Ciencias Quí micas de la Universidad Veracruzana Tuxpan M&eacute xico Facultad de Ingenierí a Mecánica de la Universidad Veracruzana Tuxpan M&eacute xico

In this work, a modification of the sugarcane bagasse is performed, in order to obtain organic catalysts. The bagasse analysis is performed using X-ray diffraction (XRD) and Fourier Transformer Infrared Spectroscopy (FTIR), which indicated that characteristic peaks determined its chemical compounds. In addition, Scanning Electron Microscopy (SEM) is used to know the morphology. Finally, a discoloration test is conducted on an azo compound (methylene blue) in an aqueous medium, obtaining an efficiency of 98.6%.

关键词： Organic Bio-Absorbents Natural and Modified Sugarcane Bagasse Methylene Blue Sugarcane Bagasse Characterization

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Erosion Behavior of AISI 6061-T6

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Journal of Surface Engineered Materials and Advanced Technology 2015年第3期5卷 136-146页

作者： Juan Rodrigo Laguna-Camacho Hermilo martínez-García Frumencio Escamilla-Rodríguez Carlos Alarcón-Rosas celia maría Calderón-Ramón Lizeth Ríos-Velasco Lizeth Ríos-Velasco Matilde Pelcastre-Lozano álvaro Casados-Sánchez Melesio González-Gómez Faculty of Electrical and Mechanical Engineering Universidad Veracruzana Veracruz Mexico Facultad de Ciencias Químicas Universidad Veracruzana Poza Rica de Hidalgo Veracruz Mexico

In this work, erosion tests were performed to study the behavior of an aluminium alloy known as AISI 6061-T6 against the impact action of aluminium oxide abrasive particles. This material was selected because of its high ductility and tenacity. An erosion rig based on that in ASTM G76-95 was used to conduct the tests. The alumina particles had a particle size between 300 and 400 μm. Four incident angles, 30°, 45°, 60° and 90° were used to conduct the erosion tests. The particle velocity and the abrasive flow rate were 24 ± 2 m/s and 63 ± 0.5 g/min. The room temperature was between 35°C and 40°C. Chemical analysis of the material and abrasive particles were obtained using energy dispersive X-ray analysis (EDS). SEM images were employed to identify the wear mechanisms, which were characterized by high plastic deformation. The erosion rates were obtained and the results indicated that the maximum erosion damage was achieved at 30° reducing progressively at normal incidence.

关键词： Erosion AISI 6061-T6 Aluminium Oxide Wear Mechanisms

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Solid Particle Erosion of AISI 304 SS Caused by Alumina Particles

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Journal of Surface Engineered Materials and Advanced Technology 2024年第1期14卷 1-14页

作者： Juan Rodrigo Laguna-Camacho celia maría Calderón-Ramón Víctor Velázquez-martínez Javier Calderón-Sánchez Gabriel Juárez-Morales Cristóbal Cortez-Domínguez Jorge Alberto Chagoya-Ramírez Jesús Enrique López-Calderón Paul Ramírez-Sánchez Silvia marina Sánchez-Yáñez Héctor Daniel López-Calderón Faculty of Electrical and Mechanical Engineering Universidad Veracruzana Poza Rica Veracruz Mexico Facultad de Ciencias Biolgicas y Agropecuarias Universidad Veracruzana Tuxpan Veracruz Mexico Facultad de Biologa Universidad Veracruzana Xalapa Veracruz Mexico

This research work was carried out with the aim of continuing to expand knowledge on the behaviour of AISI 304 stainless steel against solid particle erosion. In this particular case, the steel was subjected to the impact of alumina particles, which are hard abrasives with irregular and angular shapes. Different characterization techniques were applied to gain a better understanding of alumina. For instance, particle size distribution was obtained using the Analysette 28 Image Sizer and the particle size was between 300 - 400 µm. SEM and EDS analysis were used to know the morphology and chemical composition of both the abrasive particles and AISI 304 stainless steel. Additionally, mechanical properties values such as the hardness and Young’s modulus of AISI 304 steel were attained using a Berkovich indenter (model TTX-NHT, CSM Instruments). On the other hand, two tests were carried out for each impact angle used, 30˚, 45˚, 60˚ and 90˚, with a particle velocity of 24 ± 2 m/s and an abrasive flow rate of 63 ± 0.5 g/min, employing a test rig based on ASTM G76-95 standard. SEM images using two detectors, Backscattered Electron Detector (BED) and Low Electron Detector (LED), were employed to identify the wear mechanisms on the AISI 304 eroded surfaces at 30˚ and 90˚. Finally, the erosion rates of AISI 304 compared to those results reached by AISI 1018 steel and AISI 420 stainless steel tested under identical conditions in previous works.

关键词： Solid Particle Erosion AISI 304 Stainless Steel Alumina Particles Wear Mechanisms Erosion Rates

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Comparison of climatic threshold of geographical distribution between dominant plants and surface pollen in China

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Science China Earth Sciences 2008年第8期51卷 1107-1120页

作者： CHEDDADI Rachid BEAUDOUIN celia Institut des Sciences de l'Evolution Universite Montpellier II Montpellier 34095France Department of Earth Sciences Sun Yat-sen UniversityGuangzhou 510275China

The geographical distribution of dominant plant species in China was georeferenced and climatic variables were interpolated into all ***,the percentage distributions of principal pollen taxa based on 1860 surface pollen sites in China were selected and the related climate values were interpolated with the same method. The geographical and climatic comparison between the two data-sets indicated that the climate threshold of most pollen taxa from surface pollen is coherent with plant distributions. The climatic envelopes of dominant plant are mostly accordant with those of pollen taxa at certain levels. However, some distinct offsets of the climate ranges exist between the two datasets for most pollen taxa identified at family level, such as Ericaceae,Asteraceae, Poaceae and Chenopodiaceae. The present study provides for the first time rich information on temperature and precipitation in relation to pollen and plant distribution based on the datasets on a continental scale useful for global ecological modeling and Quaternary palaeoclimate reconstruction.

关键词： surface pollen dominant plant species geographical distribution climate global changes

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How 'Sustainable' are Post-disaster Measures? Lessons to Be Learned a Decade After the 2004 Tsunami in the Indian Ocean

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International Journal of Disaster Risk Science 2017年第1期8卷 33-45页

作者： Christiane Stephan celia Norf Alexander Fekete Institute of Rescue Engineering and Civil Protection TH Koln University of Applied Sciences50679 CologneGermany Department of Geography Rheinische Friedrich Wilhelms Universitat Bonn53113 BonnGermany Department of Environmental Sociology and Technology Assessment University of Stuttgart70174 StuttgartGermany

This article addresses the sustainability implications of post-disaster measures in the context of the 2004 Indian Ocean Tsunami by presenting an analysis of the current situations and changes in some of the affected regions. Sustainability implications of measures are captured by investigating the persistence of the social and economic living conditions in relation to post-disaster measures, and the alignment of the measures with basic environmental aspects. Based on major concepts relevant in disaster science and sustainability research, the study explored sustainability aspects of post-disaster measures implemented after the 2004 tsunami, by conducting selected interviews among the participants of the 2015 international seminar ‘‘11 Years after the Indian Ocean Tsunami 2004'' and a broader online survey. Information was sought about(1) the current state of vulnerability of the local population in the regions affected;(2) the main lessons that have been identified to improve project design and management of recovery and vulnerability reduction;and(3) project sustainability implications with respect to the state of today's vulnerability. Based on the analysis of the information on these three priority areas, selected tasks for future disaster risk management are identified, such as more integrative planning and improved coordination with international organizations and local people.

关键词： Disaster risk management Recovery Sustainability Indian Ocean Tsunami Post-disaster measures Vulnerability

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Can we promote neural regeneration through microbiota-targeted strategies? Introducing the new concept of neurobiotics

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Neural Regeneration Research 2022年第9期17卷 1965-1966页

作者： celia Herrera-Rincon Julia Murciano-Brea Stefano Geuna Department of Biodiversity Ecology&Evolutionand ModelingData Analysis&Computational Tools for Biology Research GroupBiomathematics UnitComplutense University of MadridMadridSpain Department of Clinical and Biological Sciences and Cavalieri Ottolenghi Neuroscience InstituteUniversity of TurinTurinItaly

The human body is populated by a large number of microbial colonies,with an estimated 10-100 trillion *** total genome size of human microbial colonies by far overwhelms the size of the host’s *** heterogenous group of microbial colonies(primarily bacteria,but also archaea,eukaryotes and viruses)is referred to with the term microbiota,and although most of them populate the gut,microbes are also detectable in many other organs of the body,especially in the distal tracts of the genitourinary system and the *** the last years,an increasing amount of evidence has been accumulated on how the microbiota exerts a significant influence on the development and physiology of the human body.

关键词： neural organs size

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Mechanisms of Optimal Defense Patterns in Nicotiana attenuata: Flowering Attenuates Herbivory-elicited Ethylene and Jasmonate Signaling

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Journal of Integrative Plant Biology 2011年第12期53卷 971-983页

作者： celia Diezel Silke Allmann Ian T.Baldwin Department of Molecular Ecology Max-Planck Institute for Chemical Ecology Jena 07745 Germany Department of Plant Physiology Swammerdam Institute for Life Sciences Amsterdam 1098 XH the Netherlands

To defend themselves against herbivore attack, plants produce secondary metabolites, which are variously inducible and constitutively deployed, presumably to optimize their fitness benefits in light of their fitness costs. Three phytohormones, jasmonates （JA） and their active forms, the JA-isoleucine （JA-Ile） and ethylene （ET）, are known to play central roles in the elicitation of induced defenses, but little is known about how this mediation changes over ontogeny. The Optimal Defense Theory （ODT） predicts changes in the costs and benefits of the different types of defenses and has been usefully extrapolated to their modes of deployment. Here we studied whether the herbivore-induced accumulation of JA, JA-Ile and ET changed over ontogeny in Nicotiana attenuata, a native tobacco in which inducible defenses are particularly well studied. Herbivore-elicited ET production changed dramatically during six developmental stages, from rosette through flowering, decreasing with the elongation of the first corollas during flower development. This decrease was largely recovered within a day after flower removal by decapitation. A similar pattern was found for the herbivore-induced accumulation of JA and JA-Ile. These results are consistent with ODT predictions and suggest that the last steps in floral development control the inducibility of at least three plant hormones, optimizing defense-growth tradeoffs.

关键词： flowering jasmonic acid jasmonic acid-isoleucine ethylene Manduca sexta Nicotiana attenuata ontogeny optimal defense theory plant-herbivore interactions.

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