Results 51 to 60 of about 67,861 (213)

Metalicidad de estrellas gigantes con planetas [PDF]

, 2011
Presentamos una determinación homogénea de metalicidades correspondiente a 31 estrellas gigantes (incluyendo 5 que albergan planetas) con el objetivo de verificar los recientes resultados que establecen que la metalicidad de este tipo de objetos podría ...
Jofré, Emiliano, Saffe, Carlos
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Formación, evolución y detección de planetas de tipo terrestre en el límite subestelar

En esta Tesis Doctoral estudiamos la formación, evolución y probabilidad de detección de planetas de tipo terrestre orbitando objetos de masa 0,08 M⊙ cercana al límite subestelar.
Mª Belén Blanco Sánchez
semanticscholar   +1 more source

A Novel Sampling Protocol for Fruit‐Feeding Butterflies in Grasslands and Open Habitats

Austral Ecology, Volume 51, Issue 1, January 2026.
This study proposed a novel sampling protocol for fruit‐feeding butterflies in grasslands and open areas in the subtropical region. The new method involves the use of Van Someren‐Rydon bait traps placed on specific supports closer to the ground, aiming to capture the true diversity of butterflies in these habitats.
Cristiano Agra Iserhard, Leandro Duarte, Bianca Machado, Aline Richter   +3 more
wiley   +1 more source

Switching from reference infliximab to CT-P13 in patients with inflammatory bowel disease: 12 months results [PDF]

, 2017
Background: Biological agents, such as infliximab, have transformed the outcomes of patients with immune-mediated inflammatory diseases. The advent of biosimilar treatment options such as CT-P13 promises to improve the availability of biological therapy,
Argüelles Arias, Federico, Castro Laria, Luisa, Guerra Veloz, María Fernanda, Maldonado Pérez, Belén, Merino Bohórquez, Vicente, Perea Amarillo, Raúl, Romero Gómez, Manuel, Vilches Arenas, Ángel   +7 more
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Multifaceted Assessment of Amazonian Tree Diversity Reveals Pervasive Impacts of Human Modification

Global Change Biology, Volume 31, Issue 11, November 2025.
Amazonian forests impacted by humans have a reduced and different group of tree species than those forests that have never been impacted. The trees present in forests impacted by humans also have different evolutionary histories and functional characteristics.
Erika Berenguer, Cássio Alencar Nunes, Jesús Aguirre‐Gutiérrez, Joice Ferreira, Yadvinder Malhi, Luiz E. O. C. Aragão, Adriane Esquivel‐Muelbert, Axa E. S. Figueiredo, Joseph E. Hawes, Carlos A. Joly, Carlos A. Quesada, Marina M. M. de Seixas, Ima Vieira, Jos Barlow   +13 more
wiley   +1 more source

A global indicator of species recovery

Conservation Biology, Volume 39, Issue 5, October 2025.
Abstract Monitoring progress toward meeting global biodiversity goals involves several indicators, including, at the species level, the International Union for Conservation of Nature (IUCN) Red List Index (RLI) and the Living Planet Index (LPI). However, at present, there is no indicator specifically for tracking species recovery, despite this being ...
H. Resit Akçakaya, Michael Hoffmann, E. J. Milner‐Gulland, Molly K. Grace, Barney Long   +4 more
wiley   +1 more source

Kepler, el matemático que pintaba órbitas planetarias [PDF]

, 2009
Este científico alemán revolucionó los cánones astronómicos del siglo XVII con tres leyes que demostraron, entre otras cosas, que el recorrido de los planetas en el espacio era elíptico y no circular, y que permitieron saber la masa de los astros a ...
Castellon-Serrano, Alberto
core   +1 more source

Cumulative Extreme Events Threaten Penguin Habitats Across the Southern Hemisphere

Global Change Biology, Volume 31, Issue 10, October 2025.
This study examines how multiple extreme events overlap across the Southern Hemisphere, focusing on hotspots of 18 penguin species across both land and sea. African, Snares, Emperor, Adélie and Galápagos penguins experience the greatest combined exposure, and most species are projected to face more frequent extremes if current trends persist.
Míriam Gimeno, Francisco Ramírez, Marta Coll, Andre Chiaradia, Camila Artana   +4 more
wiley   +1 more source

Procura de vida fora da terra

Caderno Brasileiro de Ensino de Física, 2010
A procura de vida fora da Terra é um dos grandes projetos do século XXI. Ela objetiva detectar sinais de atividade biológica em planetas rochosos. Num primeiro momento, é necessário desenvol ver instrumentos capazes de detectar esses minúsculos corpos a
Augusto Damineli Neto
doaj   +1 more source

Supuestos míticos en la teoría geocéntrica de Anaximandro y su anticipacion de la teoria de las dos esferas [PDF]

, 1998
Ktum en "La revolución copernicana" presenta a Anaximandro de Mileto, un cosmógo del siglo VI A.C., como el primer "testimonio explícito de una preocupación por explicar dentro de un marco teórico las observaciones efectuadas sobre estrellas y planetas".
Irazuzta, Luz
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