Results 51 to 60 of about 591 (157)

First Eumastacoidea and new Locustopsidae (Orthoptera: Caelifera) from the Crato Formation of Brazil [PDF]

open access: yesContributions to Entomology
The first genus and species of Eumastacoidea from the Lower Cretaceous Crato Formation of northeastern Brazil is described. Cratomastax mariellaae gen. et sp. nov.
Ole-Kristian Odin Schall   +4 more
doaj   +3 more sources

Gymnosperms from the Lower Cretaceous Crato Formation (Brazil). I. Araucariaceae and Lindleycladus (incertae sedis) [PDF]

open access: yesFossil Record, 2004
Fossil conifers from the Early Cretaceous, most likely late Aptian, Crato Formation were studied. The excellent preservation of several of those fossils allowed detailed investigations of the leaf epidermis by light microscope (LM) and by scanning ...
L. Kunzmann   +2 more
doaj   +1 more source

Gastroprotective Effects of Hexanic Extract of the Leaves of Spondias purpurea and Its Underlying Mechanism of Action

open access: yesJournal of Food Process Engineering, Volume 49, Issue 6, June 2026.
Histopathological analysis of gastric mucosa stained with HE and PAS of rats submitted to induction of ulcers with acetic acid. The animals were treated orally with vehicle (injured control), ranitidine, and SpHE (25 mg/kg) for 14 days. In A and B, observe preserved mucosa and submucosal layers (black asterisk) and presence of the barrier protection of
Cynthia Layse Ferreira de Almeida   +9 more
wiley   +1 more source

Anxiolytic and Memory Protective Effects of Withanolide D Isolated From Acnistus arborescens in Adult Zebrafish

open access: yesChemistry &Biodiversity, Volume 23, Issue 5, May 2026.
Withanolide D Exhibits Anxiolytic and Memory‐Protective Effects. ABSTRACT This study evaluated the anxiolytic and memory‐protective effects of withanolide D in adult zebrafish (Danio rerio). The compound was administered at doses of 4, 20, and 40 mg/kg and showed no signs of toxicity after 96 h of observation at any of the doses tested.
Cléia Rocha de Sousa Feitosa   +17 more
wiley   +1 more source

Unusual occurrence of Cochlichnus in aeolian sandstones: evidence for a stiletto fly larval origin

open access: yesPapers in Palaeontology, Volume 12, Issue 3, May/June 2026.
Abstract Cochlichnus anguineus is an ichnotaxon recognized for its distinctive regular wavy morphology. It is a characteristic trace fossil typically associated with aquatic and marginal aquatic environments. However, in this study we examine its unusual occurrence in the aeolian sandstones of the Botucatu Formation (Lower Cretaceous, Paraná Basin ...
Bernardo de C. P. e M. Peixoto   +8 more
wiley   +1 more source

New Lower Cretaceous basal mantodean (Insecta) from the Crato Formation (NE Brazil)

open access: yesGeologica Carpathica, 2014
Mantodea are very rare in the fossil record. 28 fossil species are reported since the earliest occurrence of mantodeans in the Upper Jurassic (Tithonian). Here, I describe Cretophotina santanensis n. sp. from the Aptian (Lower Cretaceous) Crato Formation
Lee Shih-Wei
doaj   +1 more source

Fire modulates the structural drivers and functioning of individual‐based plant‐pollinator networks

open access: yesJournal of Ecology, Volume 114, Issue 5, May 2026.
Ecological drivers that shape (positively or negatively) the plant‐pollinator network and determine plant fitness, both before and after a fire. Abstract Fire is a natural phenomenon that shapes ecosystems, but climate change and human activities have increased its frequency and magnitude, disrupting essential ecosystem services like pollination ...
Larissa Alves‐de‐Lima   +5 more
wiley   +1 more source

Isoquercitrin Alleviates 5‐Fluorouracil‐Induced Intestinal Mucositis in Mice by Modulating Inflammation and Oxidative Stress

open access: yesChemistry &Biodiversity, Volume 23, Issue 4, April 2026.
ABSTRACT This study aimed to evaluate the role of isoquercitrin (ISO) in 5‐fluorouracil‐induced intestinal mucositis. The animals (6 animals/group) were divided into: vehicle (2% DMSO), 5‐fluorouracil (5‐FU) and groups receiving ISO (10, 50, or 100 mg/kg).
Lázaro de Sousa Fideles   +8 more
wiley   +1 more source

Modifying Antibiotic Activity of Synthetic Thiadiazine Analogs Against MDR Bacteria and ADMET Analysis

open access: yesChemistryOpen, Volume 15, Issue 4, April 2026.
The study demonstrated that thidiazine compounds potentiated the action of antibiotics. The compounds associated with norfloxacin against S. aureus showed greater significance in relation to the other medications. The indiscriminate use of antibiotics has led to the selection of resistant bacterial strains, significantly reducing the effectiveness of ...
João Arthur de Oliveira Borges   +15 more
wiley   +1 more source

Ximenia americana L. From Popular Use to Anti‐Inflammatory Activities: A Comprehensive Review

open access: yesFood Frontiers, Volume 7, Issue 2, March 2026.
ABSTRACT Ximenia americana (L.), known as “yellow plum,” “sea lemon,” or “Brazilian plum,” is a tropical/subtropical plant widely used in traditional medicine. Its roots, leaves, flowers, stem, and fruits are traditionally employed to treat various inflammatory disorders.
Bruno Anderson F. Silva   +9 more
wiley   +1 more source

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