Results 31 to 40 of about 10,770 (183)
The genetic architecture of leaf vein density and its importance for photosynthesis in maize
New Phytologist, EarlyView.Vein types in maize leaves. Summary Leaf venation density has significantly increased during plant evolution. Higher densities are observed in angiosperms compared with early land plants, and among angiosperms, recently diverged C4 species have the highest values.
José Luis Coyac‐Rodríguez +9 more
wiley +1 more source
Trayectorias Humanas TrascontinentalesAntecedentes: en los estudios de violencia escolar existen escasos estudios de violencia perpetrada por estudiantes contra docentes. Tampoco existen instrumentos válidos y confiables para medir la incidencia en español y con población mexicana.
Elizabeth SÁENZ HERNÁNDEZ +1 more
doaj +1 more source
Oficio, Revista de Historia e Interdisciplina, 2017 La gestión del primer intendente de Guanajuato, Andrés Amat de Tortosa, ha sido poco atendida en la historiografía; prácticamente se ha reducido a la enfermedad que padeció y le obligó a dejar la intendencia.
Graciela Bernal Ruiz +1 more
doaj +1 more source
Regulation &Governance, EarlyView.ABSTRACT Skills formation is a pressing issue for middle‐income countries given the pace of technological change. In Latin America, scholars point to the hierarchical type of capitalism and its segmentalist skills formation system as the main roadblocks to exiting the middle‐income trap.
Aldo Madariaga, Mariana Rangel‐Padilla
wiley +1 more source
Accounting and Management ResearchThe COVID-19 pandemic of 2020 triggered an unprecedented global crisis, particularly devastating for the Mexican tourism industry, a crucial source of the country’s revenue.
Julio César Montiel Flores +3 more
doaj +1 more source
Exact Solutions for the Moving Firefighter Problem on Trees
Networks, Volume 88, Issue 1, Page 42-58, July 2026.ABSTRACT The moving firefighter problem (MFP) is a more realistic variant of the classic firefighter problem (FP), where firefighters require time for both travel and defense. Unfortunately, the only known exact solution for the MFP does not scale. In this paper, we establish that the MFP is NP‐complete on trees of maximum degree three and present four
Mauro A. Montenegro‐Meza +4 more
wiley +1 more source
TAXON, Volume 75, Issue 3, June 2026.Abstract Systematic knowledge of the Mexican Crassulaceae is slowly progressing as data from new DNA regions and species sampling efforts increase. We compiled and generated new rbcL, matK, rps16, ITS/ITS2, and ETS DNA sequences and performed an updated phylogenetic reconstruction for a group of 131 Mexican Crassulaceae terminals from 11 of the 13 ...
Luis Emilio de la Cruz‐López +1 more
wiley +1 more source
Geofísica Internacional, 2005 El campo de pozos de La Muralla, cerca de León, Guanajuato, México, extrae agua por medio de 19 pozos profundos. Los 629 análisis del cloruro del agua extraída entre 1994 y 1999 muestran una tendencia global decreciente de - 1.1 mg/L por año, estimada ...
J.A. Ramos-Leal +5 more
doaj +1 more source
Journal Public Economy, 2020 This article entitled State Taxes in Guanajuato briefly and precisely develops the taxes that are contributed in said state to comply in a timely manner, each tax includes the necessary elements to be understood and applied by the reader to their current tax situation such as who are the people who must comply with said tax, what will be applied ...
Adriana Paredes-Barrón +2 more
openaire +1 more source
Journal of Agricultural Economics, Volume 77, Issue 2, Page 267-282, June 2026.ABSTRACT Changes towards more sustainable livestock production are often evaluated in terms of whether farms abandon environmentally harmful practices. Less attention has been paid to how farms reallocate production across alternative grazing systems and how the composition of production evolves over time.
Saúl Basurto‐Hernández +2 more
wiley +1 more source