Results 51 to 60 of about 131,621 (297)

Diversity of Crinozoa (Echinodermata: Eocrinoidea, Blastoidea, Crinoidea) from the Paleozoic of Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2022
Paleozoic outcrops in Mexico containing echinoderms are located to the north, center and south of the country, mainly in the states of Baja California, Sonora, Chihuahua, Tamaulipas, Coahuila, Hidalgo, Puebla, Guerrero, Oaxaca, and Chiapas.
Blanca Estela Buitrón-Sánchez   +3 more
doaj   +1 more source

Intertidal Warfare: Synergistic Allelopathy Mediates Spatial Competition between Two Marine Calcareous‐Shelled Sessile Organisms

open access: yesAdvanced Science, EarlyView.
This study reveals a hidden chemical weapon among calcareous‐shelled sessile organisms in the intertidal zone: the barnacle Balanus albicostatus releases a synergistic blend of palmitic acid and 1‐palmitoyl‐sn‐glycero‐3‐phosphocholine as the allelochemical with the inhibitory activity against attachment of the mussel Vignadula atrata, which may mediate
Zhuo Li   +9 more
wiley   +1 more source

The role of serine hydroxymethyltransferase 1 (CHSHMT1) in the regulation of the key osmolyte glycine in the estuarine Hong Kong oyster Crassostrea hongkongensis under osmotic stress

open access: yesAquaculture Reports
The estuarine Crassostrea hongkongensis is the major cultured oyster species in the South China, and mass mortality induced by hyper-salinity has heavily damaged the oyster farming, especially during dry season.
Chenyang Yue   +5 more
doaj   +1 more source

The Influence of Canopy Cover on the Ecological Function of A Key Autogenic Ecosystem Engineer

open access: yesDiversity, 2019
Intertidal fucoid algae can function as ecosystem engineers across temperate marine regions. In this investigation, we assessed the function of the alga dominating rocky reefs in temperate Australia and New Zealand, Hormosira banksii.
Jacqueline B. Pocklington   +3 more
doaj   +1 more source

Hungry for Knowledge: Octopamine Signaling Regulates Hunger‐Enhanced Olfactory Learning

open access: yesAdvanced Science, EarlyView.
Researchers demonstrate that hunger state facilitates both aversive and appetitive olfactory learning. Two distinct octopamine signaling pathways are involved in aversive or appetitive memory formation in the hunger state. And, hunger state also facilitates the formation of both types of memories via an evolutionarily conserved norepinephrine (the ...
Huijuan Zhao   +14 more
wiley   +1 more source

Statistical methods in the context of environmental quality assessment: On the example of riparian beetles (Coleoptera, Carabidae)

open access: yesMATEC Web of Conferences, 2019
Modern environmental research involves the use of a broad range of statistical methods and programs. In any study, the results are obtained, as a rule, using statistical calculations, beginning with the calculation of reliability of data, and ending with
Kirichenko-Babko Marina   +4 more
doaj   +1 more source

A Versatile Three Dimensional Traction Force Microscopy Framework for Uncovering the Mechanics of Bio‐Adhesion

open access: yesAdvanced Science, EarlyView.
This study introduces a versatile platform for quantifying three dimensional traction forces at bio‐adhesive interfaces. Integrating in situ stereo‐digital image correlation with finite element simulations allows for precise measurement of microscale displacements and traction forces in both dry and wet conditions.
Yingwei Hou, Fusheng Wang, Tao Liu
wiley   +1 more source

Environmental concentrations of metals (Cu and Zn) differently affect the life history traits of a model freshwater ostracod

open access: yesThe European Zoological Journal
Zinc (Zn) and copper (Cu) are common contaminants of inland water bodies under severe anthropogenic pressure. The main aim of this study was to test the influence of environmental aqueous concentrations of Zn and Cu on the fitness-related life history ...
A. Iglikowska   +8 more
doaj   +1 more source

REVISION OF THE FAMILY SPHECIDAE (HYMENOPTERA, APOIDEA) IN IRAQ

open access: yesBulletin of the Iraq Natural History Museum, 2019
A revision study of the Sphecidae from Iraq is presented. A survey is conducted to collect the specimens from different regions; generally, there were 41 species belonging to 12 genera and 4 subfamilies are revised with synonyms.The current investigation
Razzaq Shalan Augul
doaj   +1 more source

Halorotetin B, A Novel Terpenoid Compound Derived from Marine Ascidian, Suppresses Tumor Growth by Targeting the Cell Cycle Regulator UBE2C

open access: yesAdvanced Science, EarlyView.
Halorotetin B, a novel small‐molecule terpenoid identified from an edible marine ascidian, exhibits strong anti‐tumor activity both in vitro and in vivo through direct targeting UBE2C to induce tumor cell cycle arrest and then lead tumor cell senescence. As a newly discovered UBE2C inhibitor, Halorotetin B can serve as a novel potential cell senescence
Shanhao Han   +6 more
wiley   +1 more source

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