Results 21 to 30 of about 5,665 (212)
Problems of Archaeology, Ethnography, Anthropology of Siberia and Neighboring Territories, 2021 Levallois technology dispersal is associated with several events of human habitation of the Asian region. Emergence of the Levallois technology in China precedes or coincides in time with the penetration of Initial Upper Paleolithic laminar industries into this region.
A.M. Khatsenovich +2 more
openaire +1 more source
Scientific Reports, 2022 Marine Isotopic Stage 5 is associated with wetter climatic conditions in the Saharo-Arabian deserts. This stage also corresponds to the establishment of Middle Paleolithic hominins and their associated material culture in two geographical provinces in ...
Omry Barzilai +10 more
doaj +1 more source
In Vivo Measurement of UVA Protection Factor (ISO 24442:2011) Across 38 Different SPF 50 and SPF 50+ Sunscreens Reveals High Heterogeneity and Limitations in the Level of Protection. [PDF]
Photodermatol Photoimmunol PhotomedABSTRACT Background/Purpose The UVB and UVA components of terrestrial solar ultraviolet radiation (UVR) cause acute and chronic damage to skin. These adverse effects can be reduced by sunscreen application. The sun protection factor (SPF) is primarily a measure of UVB protection against erythema and does not quantify protection from UVA, which is the ...
Young A +9 more
europepmc +2 more sources
Esen-2 flint-working workshop in the light of new technical and typological research [PDF]
Вестник археологии, антропологии и этнографииThis article analyzes new technical and typological studies of artifacts recovered from the Esen-2 flint-working workshop, located on the southwestern outskirts of the Barsa-Kelmes depression within the Ustyurt plateau.
Madreymov B.J.
doaj +1 more source
San Bernardino Cave (Italy) and the appearance of Levallois technology in Europe: results of a radiometric and technological reassessment. [PDF]
PLoS ONE, 2013 The introduction of Levallois technology in Europe marked the transition from the Lower to the early Middle Paleolithic. This new method of flake production was accompanied by significant behavioral changes in hominin populations.
Andrea Picin +4 more
doaj +1 more source
, 2020 a, b, c, d, e: Preferential Levallois cores; f, g, h, i: Recurrent Levallois cores; j: A refit of a Levallois core, a Levallois flake, and a flaking surface rectification flake; k: A refit of a Levallois core with 2 superimposed débordant flakes.
Yossi Zaidner (424074) +1 more
core +1 more source
, 2020 a-k: Levallois flakes (mostly preferential); l, m: Levallois points.
Yossi Zaidner (424074) +1 more
core +1 more source
Arms Control and Delivery Vehicles: Challenges and Ways Forward
Journal for Peace and Nuclear Disarmament, 2022 Nuclear arms control remains a priority for the foreseeable future for many stakeholders, and proposals have emerged to focus on capping nuclear warheads of the main nuclear-weapon states.
Emmanuelle Maitre
doaj +1 more source
Design of a Tele-Control Electrical Vehicle System Using a Fuzzy Logic Control
International Journal of Advanced Robotic Systems, 2012 This paper presents a fuzzy logic design of a tele-control electrical vehicle system. We showed that the application of fuzzy logic control allows the stability of tele-vehicle system in spite of communication delays between the operator and the vehicle.
M. Boukhnifer +3 more
doaj +1 more source