Results 1 to 10 of about 38,030 (175)

O sítio guarani PS-03-Totó [PDF]

open access: yesRevista de Arqueologia, 2009
Este artigo apresenta uma análise microespacial realizada no sítio arqueológico GuaraniPS-03-Totó, localizadona margem sudoeste da Laguna dos Patos, município de Pelotas, Rio Grande do Sul. O sítio Totó é um componente de um complexo de ocupação regional
Rafael Guedes Milheira   +1 more
doaj   +2 more sources

OS PIONEIROS E SEU LEGADO NA CONSTRUÇÃO DA ARQUEOLOGIA DO MARANHÃO

open access: yesCadernos do LEPAARQ, 2013
Este artigo aborda a história da arqueologia do Maranhão e o papel dos pioneiros na construção do conhecimento sobre o passado. Para tanto, serão abordados dois momentos que caracterizaram a trajetória da disciplina: o Período Descritivo (séculos XVII a ...
Arkley Marques Bandeira
doaj  

Ficha de registro de sítio arqueológico: modelo oficial IDPC/MINC

open access: yesRevista de Arqueologia, 1994
Devido à necessidade de aperfeiçoar seus instrumentos de trabalho para incrementar a questão da preservação e agilizar as atividades envolvidas, o IBPC adota a Ficha de Registro de WUST, LIMA & NEVES para sítios com intervenções e o modelo anexo, resumo ...
Maria Lúcia Franco Pardi IBPC
doaj   +1 more source

Sex‐Specific Atlantic Salmon Upstream Passage and Fallback at a Natural Cascade After Dam Removal

open access: yesFisheries Management and Ecology, Volume 33, Issue 5, Page 963-976, October 2026.
ABSTRACT In the Boquet River (NY, USA) a low‐head dam set above a ~200‐m bedrock cascade was removed in 2015. We used radio‐telemetry to assess landlocked Atlantic salmon passage at the remaining cascade (2020, 2022). Across years, 52% of males (13/25) attempted cascade passage whereas females made no discernable attempts (0/11).
Kurt C. Heim   +5 more
wiley   +1 more source

Development of Interactive Mobile Learning Applications for Early Childhood Learning in Kindergartens

open access: yesJurnal Edutech Undiksha
Advances in digital technology open up new opportunities in education, including for early childhood. However, learning in kindergarten is still dominated using conventional methods that are less interactive and have not fully attracted children's ...
Sartika Lina Mulani Sitio   +1 more
doaj   +1 more source

External structures at the nest‐site predict asymmetric architecture of nests in a mud‐building bird

open access: yesIbis, Volume 168, Issue 4, Page 1696-1703, October 2026.
In the animal kingdom, nests are essential structures and textbook examples of extended phenotypes. However, the relationship between builders, nest traits and the nest‐site remains poorly understood. We indirectly examine whether structures in the nest‐site influence nest‐building behaviour, specifically focusing on their effect on nest architecture ...
Nicolas M. Adreani   +2 more
wiley   +1 more source

Linking biosurface reactivity and photosynthesis to investigate Sphagnum mosses as ecosystem engineers

open access: yesNew Phytologist, Volume 252, Issue 1, Page 69-86, October 2026.
Habit photographs of field‐collected and in vitro‐cultivated (c) Sphagnum spp. used for experiments. Summary Sphagnum mosses regulate peatland carbon storage, hydrology, nutrient cycling, and ecosystem functioning. However, the links among their surface chemistry, photosynthesis, responses to submersion and pH remain poorly understood.
Anna Di Palma   +8 more
wiley   +1 more source

Austrocedrus from the Late Cretaceous of Antarctica and its implications for the early evolution of southern cypresses (Callitroideae, Cupressaceae)

open access: yesAmerican Journal of Botany, Volume 113, Issue 9, September 2026.
Abstract Premise The modern distribution of the southern cypresses, Callitroideae (Cupressaceae), reflects a classic Gondwanan distribution. The initial diversification of Callitroideae is estimated to have occurred during the Cretaceous, yet fossils from this period are rare, hampering our understanding of its early evolutionary history.
Kelly C. Pfeiler   +5 more
wiley   +1 more source

Phytotoxic Effects of Ethanolic Extracts of Magonia pubescens A.St.‐Hil. (Sapindaceae) on the Germination of Emilia sonchifolia (L.) DC. Seeds

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Ethanolic extracts from Magonia pubescens exhibit concentration‐dependent allelopathic activity against Emilia sonchifolia. Leaf extracts strongly inhibit seed germination and seedling growth, surpassing glyphosate under the tested conditions, whereas intermediate concentrations stimulate germination, indicating hormesis.
José Jonas Ferreira Viturino   +9 more
wiley   +1 more source

Morphological Changes and Alterations in Erosion–Accretion Patterns in a Semiarid Brazilian River

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.
Flow regulation by the Castanhão Dam significantly altered discharge dynamics and reduced sediment transport in the Jaguaribe River. Long‐term analysis (1958–2025) reveals attenuated flood peaks, decreased channel migration and progressive downstream stabilisation, highlighting persistent geomorphic adjustments in a regulated semiarid fluvial system ...
Andrea Almeida Cavalcante   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy