Results 31 to 40 of about 379,518 (254)

A new species and new generic synonymy in the family Vietnamellidae (Insecta: Ephemeroptera) from mid-Cretaceous Burmese amber with notes on ancient dispersal across East Gondwana [PDF]

PeerJ
The monophyletic mayfly family Vietnamellidae has been introduced for a few extant species from the Indomalayan Realm. All these species belong to the genus Vietnamella and have been described in adult and larval stages.
Roman J. Godunko, Nadhira Benhadji, Alexander Martynov, Zhi-Teng Chen, Xuhongyi Zheng, Arnold H. Staniczek   +5 more
doaj   +2 more sources

Electrochemically treated lignin in phenolic resins for plywood panels

Sustainable Chemistry for the Environment, 2023
In achieving the European Union's goal of making Europe the first climate-neutral continent by 2050, the scientific community is striving to develop processes and products that are technologically and economically sustainable to replace/substitute fossil-
Electra Papadopoulou, Theresa Rücker, Zoe Nikolaidou, Sotirios Kountouras, Themistoklis Sevastiadis, Torbjørn Pettersen, Bernd Wittgens   +6 more
doaj   +1 more source

Strong Fully Reprocessable Engineered Wood Composites

Advanced Materials, EarlyView.
Engineering a hyperbranched adhesive with complementary imine‐bond and hydrogen‐bond networks, combining it with wood particles to fabricate the wood composite (WP/HTP) under mild hot‐pressing conditions. The WP/HTP exhibits 100% mechanical strength recovery after three cycles of reprocessing, and the reprocessed modulus of rupture (MOR) and modulus of
Xilin Zhang, Zheng Liu, Zhezhe Zhou, Mark Lynch, Jianzhang Li, Paulomi Burey, Jingchao Li, Cheng Zhang, Qiang Gao, Pingan Song   +9 more
wiley   +1 more source

Extending the fossil record of Miocene neotropical epiphyte communities [PDF]

Fossil Record
Dominican amber (15–20 Ma) and Mexican amber (15–23 Ma) are valuable sources of fossil epiphytic bryophytes, ferns, and lichens. Both ambers derive from resins of Hymenaea, a genus in the Fabaceae family still occurring in Mexico, Central America, and ...
Kathrin Feldberg, Ulla Kaasalainen, Yuriy S. Mamontov, S. Robbert Gradstein, Alfons Schäfer-Verwimp, Pradeep K. Divakar, Alexander R. Schmidt   +6 more
doaj   +3 more sources

Chitin‐Chitosan Cryogels for the Reversible Sequestration and Recovery of Heavy Metals From Wastewater

Advanced Materials Technologies, EarlyView.
Chitin‐chitosan cryogels with degrees of N‐acetylation from 12.2% to 71.4% are fabricated by dissolution, coagulation and lyophilization for the sequestration of heavy metals from water. Colorimetry and differential pulse voltammetry showed controlled adsorption and desorption capacities for As5+, Co2+ and Cu2+, making this material attractive for ...
Marta García‐Castrillo, Maialen Uribarrena, Jorge Sáiz, Guillermo Copello, Erlantz Lizundia   +4 more
wiley   +1 more source

The discovery of a fossil whitefly from Lower Lusatia (Germany) presents a challenge to current ideas about Baltic amber

Scientific Reports
The whiteflies (Hemiptera: Aleyrodidae) are small sternorrhynchan insects, which have the potential to cause significant economic damage to agricultural crops.
Jowita Drohojowska, Marzena Zmarzły, Jacek Szwedo   +2 more
doaj   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

MIDDLE TRIASSIC AMBER ASSOCIATED WITH VOLTZIALEAN CONIFERS FROM THE SOUTHERN ALPS OF ITALY

Rivista Italiana di Paleontologia e Stratigrafia, 2017
Amber from the Carnian succession of the Dolomites and Julian Alps (northeastern Italy) represents one of the most ancient and quantitatively substantial Triassic fossil resin records in the world.
GUIDO ROGHI, EVELYN KUSTATSCHER, EUGENIO RAGAZZI, LUCA GIUSBERTI   +3 more
doaj   +1 more source

Fly palaeo-evo-devo: immature stages of bibionomorphan dipterans in Baltic and Bitterfeld amber [PDF]

PeerJ, 2019
Larvae of flies and gnats (Diptera) form a crucial component of many terrestrial and freshwater ecosystems in the extant biosphere. Larvae of Diptera play a central role in water purification, matter and energy transfer in riparian ecosystems in rivers ...
Viktor A. Baranov, Mario Schädel, Joachim T. Haug   +2 more
doaj   +2 more sources

Recent Advances in Carbon Cathode Materials toward High‐Performing Zinc‐Ion Hybrid Supercapacitors

Advanced Science, EarlyView.
Aqueous zinc‐ion hybrid supercapacitors (ZHSCs) have emerged as promising next‐generation electrochemical energy‐storage devices. Porous carbon materials have been extensively studied as cathodes, with advances in tailoring pore structures and material properties to enhance performance.
Take Hirooka, Zhaolin Liu, Ivan P. Parkin, Guanjie He   +3 more
wiley   +1 more source