Results 31 to 40 of about 11,948 (153)

A new, conspicuously pigmented Pyrrhulina (Teleostei: Characiformes: Lebiasinidae) from the Río Tigre, Loreto, Peru

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of Pyrrhulina is described based on morphological and molecular evidence. Pyrrhulina punctata is distinguished from all congeners by the presence of a series of 7 to 16 irregular blotches of dark pigmentation on the flanks, equally marked in juveniles and adult specimens, the presence of 26–28 lateral‐line scales, 17–21 maxillary
Andre Netto‐Ferreira   +4 more
wiley   +1 more source

Effects of a health education program on cytokines and cortisol levels in fibromyalgia patients: a randomized controlled trial

open access: yesAdvances in Rheumatology, 2018
Background Fibromyalgia (FM) is a syndrome characterized by widespread chronic pain associated to other symptoms, such as: fatigue, anxiety, depression and sleep disorders.
Andrei Pereira Pernambuco   +5 more
doaj   +1 more source

Biochanin A Regulates Key Steps of Inflammation Resolution in a Model of Antigen-Induced Arthritis via GPR30/PKA-Dependent Mechanism

open access: yesFrontiers in Pharmacology, 2021
Biochanin A (BCA) is a natural organic compound of the class of phytochemicals known as flavonoids and isoflavone subclass predominantly found in red clover (Trifolium pratense).
Franciel Batista Felix   +14 more
doaj   +1 more source

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

open access: yesThe Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae   +4 more
wiley   +1 more source

Estudo dos nervos do membro pélvico do Tamandua tetradactyla

open access: yesRevista de Biologia Neotropical, 2017
O objetivo deste estudo foi descrever a distribuição dos nervos do membro pélvico do T. tetradactyla. Para tanto, foram utilizados quatro cadáveres de animais adultos cedidos pelo IBAMA-GO.
Warley Vieira de Freitas Paula   +5 more
doaj   +1 more source

Secrets within stems: The cryptic Apodanthes caseariae (Apodanthaceae), a rare neotropical holoendoparasite

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 2, Page 385-400, March 2026.
Holoendoparasites are extremely rare plants that live entirely hidden inside their hosts, with only flowers and fruits visible. We studied Apodanthes caseariae, found in central and South America, parasitizing Casearia sylvestris. Little is known about its life cycle.
Jessica A. Ramírez‐Ramírez   +4 more
wiley   +1 more source

Biomarker responses induced by bisphenol A on spermatogenesis in a Neotropical teleost fish are temperature-dependent

open access: yesEcotoxicology and Environmental Safety, 2021
Bisphenol A (BPA) is an organic synthetic compound used in the plastic industry with endocrine disrupting activity. Although it is frequently found in surface waters, few studies have investigated its impact on fish gametogenesis, particularly when ...
Yves Moreira Ribeiro   +8 more
doaj   +1 more source

Community‐level effects of Müllerian mimicry on pollinator diversity and functioning

open access: yesFunctional Ecology, Volume 40, Issue 3, Page 599-610, March 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Müllerian mimicry, a mutualistic interaction in which harmful species evolve similar warning signals, is often accompanied by niche divergence among mimetic species. While these aspects have traditionally been studied in an evolutionary context, their community‐level ...
Paola Laiolo, José Ramón Obeso
wiley   +1 more source

Soil Properties and Plant Species Identity Independently Influence Arbuscular Mycorrhizal Fungal Composition Across Lowland Tropical Forests

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
We found that plant species identity and soil properties, especially soil phosphorus availability, independently structured arbuscular mycorrhizal fungal (AMF) community composition in tropical forests across central Panama. We also found that soil nutrient availability may mediate the interaction networks between plants and AMF. ABSTRACT Plant species
Mareli Sánchez‐Juliá   +3 more
wiley   +1 more source

CARACTERIZAÇÃO CITOGENÉTICA DA TAINHA,Mugil platanus(PISCES, MUGILIDAE)

open access: yesBoletim do Instituto de Pesca, 2018
Os cromossomos mitóticos, as regiões organizadoras de nucléolos (RONs) e o padrão de distribuição de heterocromatina da tainha, Mugil platanus, que ocorre na região costeira do Sudeste do Brasil foram estudados.
Luciana Cardeliquio JORDÃO   +3 more
doaj  

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