Results 121 to 130 of about 953,441 (332)
Métodos y resultados de la política indigenista en México [PDF]
Howard F. Cline
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Cannabis has been used by humans for millennia, resulting in diverse landraces and uses. Its complex legal status and economic importance make sampling wild‐growing populations difficult, limiting past studies to modern cultivars with low genetic diversity. Our research provides crucial insights into the genetic diversity of wild‐growing and cultivated
Manica Balant+19 more
wiley +1 more source
Comprehensive tree assessments for prioritising conservation action in Mesoamerica
Tree species are of ecological and social importance globally. Mesoamerica has a diverse tree flora, and the region has experienced major changes in natural habitats due to human activities. In this study, for the first time, we assessed the conservation status of the region's tree species and found that 46% of trees in the region are at risk of ...
Emily Beech+12 more
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Obras completas del maestro Justo Sierra. Tomo IV, Periodismo político. Tomo X, Historia de la antigüedad. Tomo XII, Evolución política del pueblo mexicano. Tomo XIII, Juárez: Su obra y su tiempo [PDF]
Walter Y. Scholes
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Tracing holotype trajectories: Mapping the movement of the most valuable herbarium specimens
Global efforts to protect biodiversity depend on fair access to key plant specimens. This study examines the distribution of 119,361 holotypes—unique herbarium specimens used to formally describe new plant species. By linking collection and storage data, we found that holotypes are increasingly held closer to their places of origin, particularly in ...
Dominik Tomaszewski+2 more
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Revista Derecho y Ciencia Política
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We analyzed the effects of fire on secondary forests' vertical structure in different successional stages using lidar metrics. Our results show that independently of the successional stage, secondary forests that experienced fire were more degraded than unburned secondary forest areas. Overall, our results show that forests in early successional stage (
Laura B. Vedovato+12 more
wiley +1 more source
Fuentes de la Historia española e hispanoamericana; Ensayo de Bibliografía sistemática de Impresos y Manuscritos que ilustran la Historia política de España y sus antiguas Provincias de Ultramar [PDF]
C. K. Jones
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An opto‐electronic graphene‐based biosensor detects immunoglobulin M (IgM) at 100 zeptomolar (10−19 M) concentration. It features a biofunctionalized gold electrode capacitively coupled to a graphene electrode via a water‐soaked paper strip. Surface potential changes induced by few affinity events are transduced as shifts of the graphene phonon ...
Matteo Piscitelli+6 more
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