Results 141 to 150 of about 47,261 (309)

Lithic analysis in African archaeology: Advances and key themes

open access: yesArchaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski   +2 more
wiley   +1 more source

Edge Sharpness Does Not Vary Between Palaeolithic Flake Technologies, With the Possible Exception of Levallois Débitage

open access: yesArchaeometry, EarlyView.
ABSTRACT Investigating why hominins adopted particular flake technologies during the Mid‐to‐Late Pleistocene is essential to understanding patterns of lithic innovation. This period witnessed the emergence of Levallois technologies (~350–250 ka) and later blades, each “replacing” earlier forms.
Anna Mika, Alastair Key
wiley   +1 more source

The Damhus Hoard: New Insights Into Some of the Earliest Viking Silver Coinage

open access: yesArchaeometry, EarlyView.
ABSTRACT In 2018, a hoard totalling 266 silver Viking Age coins was discovered near Damhus, south of Ribe (Denmark). The coins belong to the early ninth‐century ‘KG 4’ series, with the vast majority, 262 coins, identified as having Face/Forward Looking Deer on the obverse/reverse.
Thomas Birch   +8 more
wiley   +1 more source

The Completion of Eurasia?

open access: yesCalenda, 2021
The present state in the construction of Eurasia is proving a challenge for analysts. Given the fast pace of this construction, from a Europe Asia Meeting (ASEM) since 1996 to a Eurasian Economic Union (EAEU) since 2015 (a Eurasian Economic Community was formed in the 1990s) and now the more applied cross-continental Land New Silk Road since the same ...
openaire   +1 more source

Design and Implementation of Integrated Instruction of Mathematics and Science in Korea

open access: yes, 2018
Students can learn subjects more meaningfully through integrated education, as it helps them to link school education with their real lives. There is a strong need to develop an alternative integration method to promote effective implementation of ...
김민경
core  

Identifying hotspots of faunal data deficiency to direct urgent research and monitoring

open access: yesConservation Biology, EarlyView.
Abstract Data deficiency is a substantial challenge for extinction risk assessments because incomplete data means we cannot accurately identify priority protected areas for conservation. Here, we use the International Union for Conservation of Nature (IUCN) distributions of amphibians, sharks and rays, fish, mammals, birds, and reptiles to identify ...
Matt W. Hayward   +4 more
wiley   +1 more source

Geopolitics and Eurasia

open access: yesSuma de Negocios, 2012
The convergence and divergence among Europe, Asia and Africa about the Mediterranean as a geopolitical center, and the end of the cold war, are shaping a new continental security zone: Eurasia. Currently, this scene of conflict is witnessing wars with different features and characte­ristics, such as ethnicity and religion; interstate or global security
Netzahualcoyotzi, Raul, Furlong, Aurora
openaire   +2 more sources

Fire-steels Found in Eurasia 1: West Eurasia [PDF]

open access: yes
特集:ユーラシアの考古学 - 遺跡、研究、新発見Special issue: Archaeology of Eurasia - remains, research, and new discoveriesdepartmental bulletin ...
林 俊雄, Toshio HAYASHI
core   +1 more source

Ecosystem Services Against Illegal Immigration: The Natural Control of the Migratory Butterfly Painted Lady (Vanessa cardui) by Cotesia vestalis (Hymenoptera, Braconidae) on Organic Soybean in Ukraine

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
In central Ukraine, the migratory butterfly Vanessa cardui emerged as a key pest of organic soybean during its outbreaks in 2019 and 2022. Despite early defoliation, crops recovered strongly due to high parasitism by Cotesia vestalis, reaching 100% in some fields.
Alex Gumovsky   +3 more
wiley   +1 more source

Host plant use is driven by microclimate not nutritional quality in a grassland butterfly

open access: yesEcological Entomology, EarlyView.
Small Copper butterflies (Lycaena phlaeas) choose to lay eggs on host plants growing in warmer microclimates, despite lower nitrogen content. Bare ground created by European Moles increases host plant temperatures and weakens the negative relationship between nitrogen content and microclimatic warmth.
William B. V. Langdon   +2 more
wiley   +1 more source

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