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Novel Sources of Resistance to Phytophthora capsici on Pepper (Capsicum sp.) Landraces from Mexico
Jesú,s Enrique Retes-Manjarrez,Walter Arturo Rubio-Aragó,n,Isidro Má,rques-Zequera,Isabel Cruz-Lachica,Raymundo Saú,l Garcí,a-Estrada,Ousmane Sy 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.6
Phytophthora capsici Leonian is a major pathogen of pepper worldwide and few resistance sources to this pathogen have been identified so far. The goals of this study were to identify new sources of resistance against P. capsici in Capsicum landraces and analyze the relationship between the resistance indicator of plant symptoms and some plant phenotype parameters of plant height, stem width, leaf length and leaf width. Thirtytwo landraces of pepper were collected from fourteen states in Mexico. From each population, 36 plants were inoculated with 10,000 zoospores of P. capsici under controlled conditions. This experiment was repeated twice. Out of the 32 landraces, six showed high level of resistance, four showed intermediate resistance and five showed low level of resistance when compared with the susceptible control ‘Bravo’ and the resistant control ‘CM334’, indicating that these landraces are promising novel sources of resistance to P. capsici. There was no correlation between the symptoms and plant phenotype parameters. However, these parameters were not affected in the group classified as highly resistant, indicating that P. capsici does not affect the growing of these resistant pepper landraces. The other resistant groups were significantly affected in a differently manner regarding their phenotype, indicating that this pathogen reduce their growth in different ways. This study reports novel resistance sources with great potential that could be used in breeding programs to develop new pepper cultivars with durable resistance to P. capsici.
Gastronomy as an element of attraction in a tourist destination: the case of Lima, Peru
Jesús Claudio Perez Galvez,Tomas Lopez-Guzman,Franklin Cordova Buiza,Miguel Jesús Medina-Viruel 한국식품연구원 2017 Journal of Ethnic Foods Vol.4 No.4
In recent years, gastronomy has become one of the main sources of attraction in the tourist destinations. The objective of this study is to present the results of a research conducted on the foreign tourists in the city of Lima, a World Heritage Site, which is considered as one of the main gastronomic leaders of the world.. The principal results indicate that foreign tourists have different attitudes toward the local gastronomy. Therefore, the foreign tourists were arranged, following the model developed by Björk and Kauppinen-Räisänen (2016), in three different groups: survivors, enjoyers, and experiencers. Furthermore, it shows that the foreign tourists have different motivations regarding gastronomy, which we have grouped into three dimensions: new food experience, culture, and socialization. The results show that the dimensions new food experience and socialization contribute to a greater degree to gastronomic satisfaction.
Impact of Globalization on Cultural Heritage as a Link of Identity and Its Diversity in Mexico
( Jesús Antonio Machuca Ramírez ) 부경대학교 글로벌지역학연구소 2018 Journal of Global and Area Studies(JGA) Vol.2 No.2
This essay addresses the phenomenon of globalization and its contrasting and multilateral effects on the identities and cultural heritage of different countries. Its accuracy is possible thanks to the relationship with localities and the Nation-State, and it’s manifested through processes such as migration. It can also be found in the characteristics of the intangible cultural heritage and the new identities created.
Jesús C. Peña-Vinces,Segundo Castro,Francisco Espasandín-Bustelo 한국유통과학회 2013 유통과학연구 Vol.11 No.4
Purpose - The aim of this work is to study the reorientation that the export industrial sectors in Costa Rica have experienced during the last 20 years. Research design, data, methodology - The study employs the Cluster Analysis with the export data (20 years of cut-off period) from Costa Rica to the U.S-market. To make the predictions, the technique of the time series was used, with official data (from 2001 to 2010) from the U.S. Department of Commerce and the U.S. International Trade Commission. Results - The Cluster Analysis, show how the economic sectors of traditional products exports of Costa Rica have progressively become in exporters of non-traditional products, meanwhile,the time series confirms that this trend will continue, at least during the next five years. Conclusions - The industry of traditional products exports of Costa Rica (dressmaking, vegetables, coffee, mate, species, etc.) will progressively become in exporters of non- traditional products with a high-tech component (i.e., mechanical equipment and devices, electronic devices and medical equipment),as a consequence of the Chinese (Costa Rica’s main competitor) economy´s presence in the Organization for Economic Co-operation and Development (OCDE). This fact has enabled the potential improvement of Costa Rica’s international competitiveness in the U.S. market.
Jesús Andrei Rosales-Castillo,Ma. Soledad Vázquez-Garcidueñas,Hugo Álvarez-Hernández,Omar Chassin-Noria,Alba Irene Varela-Murillo,María Guadalupe Zavala-Páramo,Horacio Cano-Camacho,Gerardo Vazquez-Mar 한국미생물학회 2011 The journal of microbiology Vol.49 No.5
The genetic diversity and population structure of Escherichia coli isolates from small-scale dairy farms were used to assess the ability of E. coli to spread within the farm environment and between neighboring farms. A total of 164 E. coli isolates were obtained from bovine feces, bedding, cow teats and milk from 6 small-scale dairy farms. Ward’s clustering grouped the isolates into 54 different random amplified polymorphic DNA (RAPD) types at 95% similarity, regardless of either the sample type or the farm of isolation. This suggests that RAPD types are shared between bovine feces, bedding, cow teats, and milk. In addition, transmission of RAPD types between the studied farms was suggested by the Ward grouping pattern of the isolates, Nei’s and AMOVA population analyses, and genetic landscape shape analysis. For the first time, the latter analytical tool was used to assess the ability of E. coli to disseminate between small-scale dairy farms within the same producing region. Although a number of dispersal mechanisms could exist between farms, the genetic landscape shape analysis associated the flow of E. coli RAPD types with the movement of forage and milking staff between farms. This study will aid in planning disease prevention strategies and optimizing husbandry practices.
Fluid-structure interaction of a tensile fabric structure subjected to different wind speeds
Jesús G. Valdés-Vázquez,Adrián D. García-Soto,Alejandro Hernández-Martínez,José L. Nava 한국풍공학회 2020 Wind and Structures, An International Journal (WAS Vol.31 No.6
Despite the current technologic developments, failures in existent tensile fabric structures (TFS) subjected to wind do happen. However, design pressure coefficients are only obtained for large projects. Moreover, studies on TFSs with realistic supporting frames, comparing static and dynamic analyses and discussing the design implications, are lacking. In this study, fluid-Structure analyses of a TFS supported by masts and inclined cables, by subjecting it to different wind speeds, are carried out, to gain more understanding in the above-referred aspects. Wind-induced stresses in the fabric and axial forces in masts and cables are assessed for a hypar by using computational fluid dynamics. Comparisons are carried out versus an equivalent static analysis and also versus loadings deemed representative for design. The procedure includes the so-called form-finding, a finite element formulation for the TFS and the fluid formulation. The selected structure is deemed realistic, since the supporting frame is included and the shape and geometry of the TFS are not uncommon. It is found that by carrying out an equivalent static analysis with the determined pressure coefficients, differences of up to 24% for stresses in the fabric, 5.4% for the compressive force in the masts and 21% for the tensile force in the cables are found with respect to results of the dynamic analysis. If wind loads commonly considered for design are used, significant differences are also found, specially for the reactions at the supporting frame. The results in this study can be used as an aid by designers and researchers.
New optimum distribution of lateral strength of shear-type buildings for uniform damage
Jesús Donaire-Á vila,Andrea Lucchini,Amadeo Benavent-Climent,Fabrizio Mollaioli 국제구조공학회 2020 Structural Engineering and Mechanics, An Int'l Jou Vol.76 No.3
The seismic design of conventional frame structures is meant to enhance plastic deformations at beam ends and prevent yielding in columns. To this end, columns are made stronger than beams. Yet yielding in columns cannot be avoided with the column-to-beam strength ratios (about 1.3) prescribed by seismic codes. Preventing plastic deformations in columns calls for ratios close to 4, which is not feasible for economic reasons. Furthermore, material properties and the rearrangement of geometric shapes inevitably make the distribution of damage among stories uneven. Damage in the i-th story can be characterized as the accumulated plastic strain energy (Wpi) normalized by the product of the story shear force (Qyi) and drift (yi) at yielding. Past studies showed that the distribution of the plastic strain energy dissipation demand, Wpi /Wpj, can be evaluated from the deviation of Qyi with respect to an “optimum value” that would make the ratio Wpi/(Qyiyi) —i.e. the damage— equal in all stories. This paper investigates how the soil type and ductility demand affect the optimum lateral strength distribution. New optimum lateral strength distributions are put forth and compared with others proposed in the literature.
Jesús Quintero,Javier Juamperez,Emmanuel Gonzales,Ecaterina Julio,Maria Mercadal-Hally,Mauricette Collado-Hilly,Ana Marín-Sánchez,Ramon Charco 대한소아소화기영양학회 2020 Pediatric gastroenterology, hepatology & nutrition Vol.23 No.2
We present an 8 years old girl who was diagnosed at 6 months of age of Progressive Familial Intrahepatic Cholestasis type 2. Although liver transplantation (LT) was classically considered curative for these patients, cholestasis recurrence with normal gamma-glutamyl transpeptidase (GGT), mediated by anti-bile salt export pump (BSEP) antibodies after LT (auto-antibody Induced BSEP Deficiency, AIBD) has been recently reported. Our patient underwent LT at 14 months. During her evolution, patient presented three episodes of acute rejection. Seven years after the LT, the patient presented pruritus with cholestasis and elevation of liver enzymes with persistent normal GGT. Liver biopsy showed intrahepatic cholestasis and giant-cell transformation with very low BSEP activity. Auto-antibodies against BSEP were detected therefore an AIBD was diagnosed. She was treated with Rituximab and immunoadsorption with resolution of the AIBD. As a complication of the treatment she developed a pneumocystis infection successfully treated with corticoids, cotrimoxazol and anidulafungin.