Results 61 to 70 of about 4,091 (207)

A hawker dragonfly (Odonata: Liupanshaniidae) from the Lower Cretaceous Crato Formation, northeastern Brazil

Cretaceous Research, 2020
Abstract The hawker dragonfly Cratoliupanshania magnifica gen. et sp. nov. is described from the Lower Cretaceous Crato Formation in northeastern Brazil, corresponding to the third genus of this Mesozoic family from this formation. This family is otherwise known from the Lower to ‘mid’-Cretaceous of China, Central Asia, and France. This new discovery
Pella, Cristian, Nel, André
openaire   +3 more sources

Chemical Profiling, In Silico and In Vitro Studies to Identify Potential CDK2 and mTOR Inhibitor From Selaginella inaequalifolia (Hook. & Grev.) Spring Ethanolic Extracts

Chemistry &Biodiversity, Volume 23, Issue 2, February 2026.
ABSTRACT The current study is aimed to reveal the phytoprofile of Selaginella inaequalifolia (Hook. & Grev.) Spring using GC–MS and predict the drug properties, toxicity, biological properties of S. inaequalifolia ethanolic extracts (SiEE) using in silico methods and in vitro toxicity assays, namely, MTT and BSLB assay.
Johnson Marimuthu Alias Antonysamy, Sivaraman Arumugam, Robin Charles Antony Arulraj, Anne Wincy Jacob Thomas, Henrique D. M. Coutinho   +4 more
wiley   +1 more source

Boosting search by rare events

, 2001
Randomized search algorithms for hard combinatorial problems exhibit a large variability of performances. We study the different types of rare events which occur in such out-of-equilibrium stochastic processes and we show how they cooperate in ...
A. M. Frieze, Andrea Montanari, C. P. Gomes, C. P. Gomes, H. Nishimori, J.-P. Bouchaud, M. Bauer, M. R. Garey, M. Weigt, M. Weigt, M. Weigt, P. G. Gazmuri, R. Monasson, R. Motwani, Riccardo Zecchina, S. Cocco, S. Cocco   +16 more
core   +1 more source

Action of Betulinic Acid in the Inhibition of Efflux Pump NorA in Staphylococcus aureus Strains: In Vitro and In Silico Approaches

Chemistry &Biodiversity, Volume 23, Issue 2, February 2026.
ABSTRACT Antibiotic resistance poses a serious challenge to public health, particularly in the case of Staphylococcus aureus, a Gram‐positive bacterium that employs multiple resistance mechanisms, including efflux pumps such as NorA, which extrude antimicrobial compounds from the cell and reduce antibiotic efficacy. Therefore, the search for substances
Camila Aparecida Pereira da Silva, Nara juliana Santos Araujo, Cícera Datiane Morais Oliveira‐Tintino, José Maria Barbosa Filho, Gabriel Gonçalves Alencar, José Bezerra de Araújo‐Neto, Josefa Sayonara dos Santos, Juliete Bezerra Soares, Carolina Bandeira Domiciano, Henrique Douglas Melo Coutinho, Jacqueline Cosmo Andrade‐Pinheiro   +10 more
wiley   +1 more source

Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns [PDF]

, 2016
publisher: Elsevier articletitle: Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns journaltitle: Perspectives in Plant Ecology, Evolution and Systematics articlelink: http://dx.doi.org/10.1016/j.ppees.2016.01.003 ...
Alexander R. Schmidt, Barden, Bell, Benton, Benton, Cardinal, Caspary, Christenhusz, Coiffard, Collinson, Collinson, Cruickshank, Darriba, Drummond, Feldberg, Goeppert, Grimaldi, Guindon, Gómez, Harald Schneider, Hasebe, Hedenäs, Heinrichs, Heinrichs, Heinrichs, Heinrichs, Hu, Jochen Heinrichs, Kramer, Kvaček, Lehtonen, Lehtonen, Lloyd, Lovis, Lóriga, Maddison, Magallón, Magallón, Mays, Mendes, Meredith, Mohr, Nagalingum, Nagalingum, Parham, Poinar, Poinar, Pérez-de la Fuente, Rambaut, Rambaut, Ren, Rothwell, Schmidt, Schmidt, Schneider, Schneider, Schneider, Schneider, Schneider, Schuettpelz, Schuettpelz, Shi, Skog, Smith, Smith, Smith, Smith, Smith, Tidwell, Tryon, van Konijnenburg-van Cittert, Vera, Vermeij, Villarreal, Wing, Zeng   +75 more
core   +1 more source

Chemical and Biological Properties of Hymenaea courbaril L.: A Review

Chemistry &Biodiversity, Volume 23, Issue 2, February 2026.
PRISMA‐style flowchart showing the screening process of studies identified and selected in the review has been added to the attachments. ABSTRACT Hymenaea courbaril L., commonly known as jatobá, is a plant traditionally used by native populations for medicinal purposes, in addition to providing edible fruits and durable wood for construction.
Cicera Alane Coelho Gonçalves, Geane Gabriele de Oliveira Souza, Ana Maria Fernandes Duarte, Joice Barbosa do Nascimento, Fázia Fernandes Galvão Rodrigues, José Galberto Martins da Costa, Fabíola Fernandes Galvão Rodrigues   +6 more
wiley   +1 more source

Remarks on the neuropterofauna (Insecta, Neuroptera) from the Brazilian Cretaceous, with keys for the identification of the known taxa [PDF]

, 2000
This paper reviews all previous knowledge about neuropterans from the Santana Formation (Lower Cretaceous, northeastern Brazil) involving a decade of research in this group.
Martins-Neto, R. G.
core   +1 more source

A replacement family-group name among fossil Neuroptera (Insecta) [PDF]

, 2017
The nomenclature of the enigmatic fossil family Rafaelidae is summarized and its status as a nomen invalidum requiring replacement is recognized, due to homonymy of its type genus, Rafaelia Nel et al. (nec Rafaelia Townsend).  The replacement family-
Engel, Michael S., Nel, André
core   +3 more sources

Tensile Strength: A Pedologist's Perspective on Variability in Cohesive and Non‐Cohesive Horizons From Brazil's Coastal Tablelands

Journal of Plant Nutrition and Soil Science, Volume 189, Issue 1, Page 36-48, February 2026.
ABSTRACT Background Previous research has underscored the importance of evaluating soil consistency for accurate determination of cohesive character and mechanical properties. Although qualitative assessments by pedologists are pertinent, they exhibit inherent subjectivity that may compromise accuracy.
Jaedson Cláudio Anunciato Mota, Cillas Pollicarto da Silva, Thiago Leite de Alencar, Márcio Godofrêdo Rocha Lobato, Lucas de Sousa Oliveira, Ricardo Espíndola Romero, Ícaro Vasconcelos do Nascimento, João Marcos Rodrigues dos Santos, Alexandre dos Santos Queiroz   +8 more
wiley   +1 more source

Conservation of the palaeontological heritage of Araripe Geopark (Ceará, Brazil) : threats and possible solutions [PDF]

, 2012
The palaeontological heritage of Araripe Geopark has a worldwide recognition due to the diversity and quality of fossils that occur in the Santana Formation (Lower Cretaceous).
Brilha, J. B., Lima, Flávia, Vilas-Boas, Mariana   +2 more
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