Results 121 to 130 of about 100,781 (222)

Silesaurid (Archosauria: Dinosauriformes) remains from the base of the Dockum Group (Late Triassic: Otischalkian) of Texas provide new insights to the North American record of dinosauriforms

open access: yesThe Anatomical Record, Volume 309, Issue 2, Page 293-313, February 2026.
Abstract Silesaurids (Archosauria: Dinosauriformes) are found in Middle to Upper Triassic deposits across Pangea, but few stratigraphic sections record the evolution of the group in one geographic area over millions of years. Here, we describe silesaurid remains from the oldest of the Upper Triassic stratigraphic sequence from the base of the Dockum ...
Frederick B. Tolchard   +2 more
wiley   +1 more source

Biosynthesis of Silver Nanoparticles Using Black Pepper (Piper nigrum) Seed Extract and Evaluation of Their Cytotoxicity

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
This study reports the green biosynthesis of piperine‐functionalized silver nanoparticles from Piper nigrum seed extract, followed by comprehensive physicochemical characterization and in vitro cytotoxic evaluation. The results confirm successful nanocomposite formation and demonstrate a marked enhancement of cytotoxic activity against gastric cancer ...
Nylton Ferreira Maciel   +17 more
wiley   +1 more source

Simulating climate change scenarios established by the Intergovernmental Panel on Climate Change in aquatic mesocosms

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 2, February 2026.
Abstract Climate change poses a major threat to ecosystems worldwide, with temperature changes being a key driver of ecological disruption in aquatic environments due to the limited ability of many aquatic species to relocate in response. Despite advances in aquatic experimental approaches to temperature control, most studies rely on simplified warming
Tauany Rodrigues   +5 more
wiley   +1 more source

Museu da Misericórdia, um Museu da Cidade?

open access: yes, 2012
À margem do percurso histórico da museologia, existem mundos de periferias culturais, onde os avanços técnico-científicos se debatem com as idiossincrasias das dinâmicas culturais das elites que compõe esses lugares. Setúbal, a sul de Lisboa, é um caso paradigmático.
Silva, D. S., Neto, J. L.
openaire   +2 more sources

A new cricket genus and first record of Neometrypini (Orthoptera: Oecanthidae) in the Caatinga, Brazil

open access: yesAustral Entomology, Volume 65, Issue 1, February 2026.
Abstract Biological collections are fundamental resources for biodiversity research, although they remain underutilised in many taxonomic efforts. In this study, we examine specimens deposited in the Entomological Collection of the Museu de Zoologia da Universidade de São Paulo (MZSP) to describe a new genus and species of cricket belonging to the ...
Lucas Denadai Campos, Vitor Tonon
wiley   +1 more source

Increasing the diversity of Sycorax Haliday, 1839 (Diptera: Psychodidae) in the Neotropical region: New species from the Brazilian Atlantic Forest

open access: yesAustral Entomology, Volume 65, Issue 1, February 2026.
Abstract Four new species of Sycorax Haliday, 1839 are described: Sycorax alumna sp. nov., Sycorax catarina sp. nov., Sycorax paranaensis sp. nov., and Sycorax striga sp. nov., with the females of Sycorax striga sp. nov. bearing characteristics that suggest haematophagous behaviour.
Lucas Rossito   +2 more
wiley   +1 more source

Sistema de Museus do Distrito Federal: indícios de uma trajetória em (des) articulação

open access: yesEncontros Bibli
Objetivo: O artigo apresenta a trajetória e os desafios da formação do Sistema de Museus do Distrito Federal, criado inicialmente em 1990 e restabelecido em 2012. Consiste em estudo de caso com o objetivo de compreender sua organização, (des) articulação
Amanda Costa Soares   +1 more
doaj   +1 more source

As ideias nascem do real: ensaio sobre museus de arte = Ideas sprout from the real: essay on art museums

open access: yesEducação, 2011
Este ensaio tem como objectivo examinar as mediações educacionais propostas pelos museus. A reflexão proposta, de modo claro, pretende legitimar a dimensão pedagógica do museu de arte.
Fróis, João Pedro
doaj  

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