Results 21 to 30 of about 582,146 (231)

New Approaches to Oxirane Containing Natural Products: Stereoselective Total Synthesis of the Antitumor Agents Gummiferol and Depudecin [PDF]

open access: yes, 2015
La comunicación presenta la síntesis total de productos naturales con actividad antitumoral caracterizados estructuralmente por la presencia de anillos de oxirano.
García-Ruiz, Cristina   +1 more
core  

The collective application of shorebird tracking data to conservation

open access: yesConservation Biology, EarlyView.
Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison   +71 more
wiley   +1 more source

Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery

open access: yesConservation Biology, EarlyView.
Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar   +17 more
wiley   +1 more source

Patch Test Results With the European Baseline Series, 2021/2022—Joint European Results of the ESSCAA and the EBSB Working Groups of the ESCD, and the GEIDACC

open access: yesContact Dermatitis, EarlyView.
ABSTRACT Background Patch test results obtained with the European Baseline Series (EBS) in its current version serve both contact allergy surveillance and (re‐)assessing the diagnostic value of EBS allergens. Objectives To present results of current EBS patch testing, obtained in 59 departments in 14 European countries during 2021 and 2022.
Wolfgang Uter   +73 more
wiley   +1 more source

Linking eBird data with high spatiotemporal remote sensing products to estimate occupancy of bird populations across the island of Ireland

open access: yesIbis, EarlyView.
The vast increase in biodiversity data generated through citizen science initiatives, alongside a growing suite of remote sensing products and advanced modelling tools, has opened new avenues for rapidly, accurately and efficiently monitoring species trends to inform conservation, management and policy.
Ramiro D. Crego   +7 more
wiley   +1 more source

The Search for New Antimicrobial Agents, by Site-Selective Peptide Modification

open access: yesProceedings, 2017
Antimicrobial peptides (AMPs) have been used by animals and plants for millions of years for defence against pathogens, and present important advantages as potential drugs, such as a broad spectrum of activity, no induction of resistances, and synergic ...
Alicia Boto   +5 more
doaj   +1 more source

BIENVENIDOS A LA REVISTA PRODUCTOS NATURALES

open access: yesRevista Productos Naturales, 2007
Al final de la novena versión del “Congreso Colombiano de Fitoquímica” organizada por el Grupo Polifenoles UTP-CENIVAM en la Universidad Tecnológica de Pereira (Mayo, 2007), surgió la necesidad de una publicación seriada especializada en el área de productos naturales.
openaire   +1 more source

Inhibición de ADN por extractos vegetales de plantas de la ecorregión cafetera [PDF]

open access: yes, 2007
Este estudio presenta los resultados de la inhibición del ADN de 52 extractos metanólicos y 51 de diclorometano evaluados con el ADN del esperma de Herring mediante la reducción de la señal de absorción al ultravioleta a través del método de HPLC ...
Correa N., Yaned Milena   +3 more
core  

‘I'm Dead!’: Action, Homicide and Denied Catharsis in Early Modern Spanish Drama

open access: yesRenaissance Studies, EarlyView.
Abstract In early modern Spanish drama, the expression ‘¡Muerto soy!’ (‘I'm dead!’) is commonly used to indicate a literal death or to figuratively express a character's extreme fear or passion. Recent studies, even one collection published under the title of ‘¡Muerto soy!’, have paid scant attention to the phrase in context, a serious omission when ...
Ted Bergman
wiley   +1 more source

D005, nuevo ingrediente activo obtenido a partir de los frutos de Acrocomia crispa

open access: yesRevista CENIC Ciencias Químicas, 2015
Los frutos de las palmas (familia Arecaceae) constituyen un importante recurso oleaginoso, tanto para la producción de aceites y grasas comestibles como para las industrias farmacéutica y cosmética.
Roxana de la Caridad Sierra-Pérez   +6 more
doaj  

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