Results 1 to 10 of about 210,153 (108)

Leonardo da Vinci y la comparación ojo-cámara obscura [PDF]

Ideas y Valores, 2020
Este artículo explora si hay algún fundamento sólido para atribuir a Leonardo da Vinci prioridad en la formulación del símil que lleva a concebir el ojo como una cámara obscura. Aquí, se defiende una posición pesimista.
Carlos Aberto Suarez Cardona
doaj   +8 more sources

The mutualism-antagonism continuum in Neotropical palm-frugivore interactions: from interaction outcomes to ecosystem dynamics. [PDF]

Biol Rev Camb Philos Soc, 2022
ABSTRACT Frugivory, that is feeding on fruits, pulp or seeds by animals, is usually considered a mutualism when interactions involve seed dispersal, and an antagonism when it results in the predation and destruction of seeds. Nevertheless, most frugivory interactions involve both benefits and disadvantages for plants, and the net interaction outcomes ...
Marques Dracxler C, Kissling WD.
europepmc   +2 more sources

Contrasting population genetic structures of freshwater eels (Anguilla marmorata, A. bicolor, A. mossambica) from Madagascar. [PDF]

J Fish Biol
Abstract Freshwater eels (genus Anguilla) are of major biological and commercial interest due to their complex catadromous life cycle and as a high‐value fishery resource, but the biology of tropical species is still poorly understood. This study investigates the genetic integrity, diversity and population structure of three species of tropical eels ...
Speranza G, Razafindranaivo E, Andriamahefa DM, Tambets M, Sztatecsny M, Ratsoavina F, Rakotomalala Z, Barth JMI, Matschiner M, Gubili C, Jehle R, Schabetsberger R.   +11 more
europepmc   +2 more sources

Traditional Medicinal Plants as a Source of Antituberculosis Drugs: A System Review. [PDF]

Biomed Res Int, 2021
Medicinal plants are the chief components in the different oriental formulations in different traditional medical systems worldwide. As a thriving source of medicine, the medicinal plants with antituberculosis (TB) properties inspire the pharmacists to develop new drugs based on their active components or semimetabolites.
Xu Y, Liang B, Kong C, Sun Z.
europepmc   +2 more sources

Commodity risk assessment of Acer palmatum plants grafted on Acer davidii from China. [PDF]

EFSA J, 2022
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by 2‐year‐old bare rooted plants for planting of ...
EFSA Panel on Plant Health (PLH), Bragard C, Baptista P, Chatzivassiliou E, Di Serio F, Jaques Miret JA, Justesen AF, MacLeod A, Magnusson CS, Milonas P, Navas-Cortes JA, Parnell S, Potting R, Reignault PL, Stefani E, Thulke HH, Van der Werf W, Vicent Civera A, Yuen J, Zappalà L, Battisti A, Mas H, Rigling D, Faccoli M, Iacopetti G, Mikulová A, Mosbach-Schulz O, Stergulc F, Gonthier P.   +28 more
europepmc   +2 more sources

Commodity risk assessment of Persea americana from Israel. [PDF]

EFSA J, 2021
Abstract The EFSA Panel on Plant health was requested to prepare and deliver risk assessments for commodities listed in the relevant Implementing Acts as ‘High risk plants, plant products and other objects’ (Commission Implementing Regulation (EU) 2018/2019 establishing a provisional list of high risk plants, plant products or other objects, within the
EFSA Panel on Plant Health (PLH), Bragard C, Dehnen-Schmutz K, Di Serio F, Gonthier P, Jacques MA, Jaques Miret JA, Justesen AF, MacLeod A, Magnusson CS, Milonas P, Navas-Cortes JA, Parnell S, Potting R, Reignault PL, Thulke HH, Van der Werf W, Civera AV, Zappalà L, Gómez P, Lucchi A, Urek G, Tramontini S, Mosbach-Schulz O, de la Peña E, Yuen J.   +25 more
europepmc   +2 more sources

Pest categorisation of non-EU Cicadomorpha vectors of Xylella spp. [PDF]

EFSA J, 2019
Abstract The Panel on Plant Health performed a group pest categorisation of non‐EU Cicadomorpha vectors of Xylella spp. known to be associated with plant diseases. Although all the insects considered in this categorisation are proven vectors of Xylella spp., additional vectors within the order Hemiptera most probably exist but have not been associated ...
EFSA Panel on Plant Health (PLH), Bragard C, Dehnen-Schmutz K, Di Serio F, Gonthier P, Jacques MA, Jaques Miret JA, Justesen AF, Magnusson CS, Milonas P, Navas-Cortes JA, Parnell S, Potting R, Reignault PL, Thulke HH, Van der Werf W, Civera AV, Yuen J, Zappalà L, Malumphy C, Lopes JRS, Czwienczek E, MacLeod A.   +22 more
europepmc   +2 more sources

Medicinal Plants Used for Treatment of Diarrhoeal Related Diseases in Ethiopia. [PDF]

Evid Based Complement Alternat Med, 2018
This paper presents a review of relevant antidiarrhoeal medicinal plants based on the fundamental knowledge accumulated by indigenous people of Ethiopia. The review includes an inventory carried out on the phytochemical and pharmacological analysis of plant species used in the treatments of diarrhoeal diseases.
Woldeab B, Regassa R, Alemu T, Megersa M.   +3 more
europepmc   +2 more sources

Memoria fotográfica: Cámara (habitación) obscura

Arquitecturas del Sur, 2016
El fenómeno físico-lumínico conocido como cámara obscura se remonta a los primeros estudios sobre la luz, los astros y la instrumentalización para representar el mundo visible.
Nicolás Sáez Gutiérrez
doaj   +1 more source

La Cámara Oscura de la Torre Tavira [PDF]

, 2022
Antes de empezar a contar cómo se gestionó mi idea empresarial de la Cámara Oscura en la Torre Tavira de Cádiz, tal vez sería conveniente explicar, convenientemente, qué es una Cámara Oscura, cómo funciona y en qué consiste.
Torre Tavira, Equipo
core   +1 more source