Results 71 to 80 of about 13,310 (214)

Regularities of hydromechanical amber extraction from sandy deposits [PDF]

open access: yes, 2019
Purpose is to analyze the efficiency of hydromechanical amber extraction from sandy deposits relying upon the determined regularities concerning the effect of parameters while carrying out a series of laboratory tests and full-scale experiments. Methods.
Khrystyuk, A   +5 more
core   +1 more source

Three new stoneflies (Insecta: Plecoptera) from Eocene Baltic amber

open access: yesEuropean Journal of Taxonomy
Three new stonefly species are described and illustrated from Eocene Baltic amber found in Lithuania: †Palaeopsole spinosa sp. nov. (family Leuctridae Klapálek, 1905), †Podmosta biloba sp. nov. (family Nemouridae Newman, 1853), and †Isoperla lituana sp.
Zhi-Teng Chen
doaj   +1 more source

Combinatorial Screening in Electrochemical Reaction Engineering

open access: yesChemie Ingenieur Technik, Volume 98, Issue 5, Page 235-244, May 2026.
Parallel testing (combinatorial screening) accelerates climate‐friendly materials research. This study advances high‐pressure electrocatalysis with automated reaction and analytics. A compressible cell enables PEM water electrolysis at elevated pressure.
Stefan Bowe   +21 more
wiley   +1 more source

New records of mosses from Dominican amber [PDF]

open access: yes, 2001
Hypnum cupressiforme, Entodon macropus, Homalia glabella and Calyptothecium duplicatum are recorded as new from Dominican amber. Earlier records of Neckera spec. have to be transferred to Calyptothecium duplicatum. These records raise the total number of
Frahm, Jan-Peter
core  

The largest amber-preserved flower revisited

open access: yesScientific Reports, 2023
Amber exquisitely preserves the delicate organs of fossil flowers for millions of years. However, flower inclusions can be rare and usually do not exceed 10 mm in size. Here we report an exceptionally large flower from late Eocene Baltic amber, measuring
Eva-Maria Sadowski   +1 more
doaj   +1 more source

Description of Austrocelis gen. nov. (Diptera: Periscelididae), including the description of eight new species and the diversity and abundance of the species in different strata of the Amazon Rainforest

open access: yesAustral Entomology, Volume 65, Issue 2, May 2026.
Abstract Austrocelis gen. nov. is described based on the following characters: maxillary palpus short and spatulate; setae of the head elongate; face protrudent, with the dorsal portion flattened and oblique, and ventral portion shorter and recessed towards the mouth opening; wing banded, with setae present on dorsal surface of vein R1; surstylus ...
Rosaly Ale‐Rocha, Wayne N. Mathis
wiley   +1 more source

Experiments and Thoughts on Amber Working during the Iron Age

open access: yesEXARC Journal, 2022
Amber is a fossilized plant resin found in many areas of the world, such as the Baltic Sea coastline, in Central-and South America and, more rarely, in southern Italy. The following work aims to introduce the reader to some experiments carried out on raw
Mauro Fiorentini
doaj  

The caliph and the falcons: a ninth‐century history from Iceland to Iraq

open access: yesEarly Medieval Europe, Volume 34, Issue 2, Page 299-322, May 2026.
In the late ninth and early tenth centuries, an extraordinary number of falcons were given to the ʿAbbāsid caliphs in Baghdad, many of which were white. Gifts from competing dynasties in the northern provinces of the Caliphate, at least some of these birds were almost certainly gyrfalcons from near the Arctic Circle.
Caitlin Ellis, Sam Ottewill‐Soulsby
wiley   +1 more source

Re-examining the rare and the lost : a review of fossil Tortricidae (Lepidoptera) [PDF]

open access: yes, 2018
We re-evaluate eleven fossils that have previously been assigned to the family Tortricidae, describe one additional fossil, and assess whether observable morphological features warrant confident assignment of these specimens to this family. We provide an
Baixeras, Joaquin   +4 more
core   +1 more source

CULTURAL FUSION IN LATE BRONZE AGE GOLDWORK: DIADEMS AND MOUTH‐PIECES FROM HALA SULTAN TEKKE, CYPRUS

open access: yesOxford Journal of Archaeology, Volume 45, Issue 2, Page 151-179, May 2026.
Summary This study investigates recently discovered gold diadems and mouth‐pieces from seven chamber tombs and one shaft tomb at the Late Bronze Age cemetery of Hala Sultan Tekke, dating from the fifteenth to the thirteenth centuries BC. The chamber tombs, all containing multi‐generational burials, yielded a variety of ornaments, which are analysed in ...
Peter M. Fischer
wiley   +1 more source

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