Baldwin effects in early stone tools

A sizeable dataset comprising millions of lithic artifacts sampling over two millionyears of early paleolithic tool technology from Africa and Eurasia is now available.The widespread presupposition of an exclusively cultural, that is, socially learned,nature of early stone tools from at least Acheulean times onwards has been chal-lenged by researchers who hypothesize that these tools, a crucial element of earlyhominin survival strategies, may partly have been under genetic control, next to theeffects of various other determinants. The discussion this hypothesis has sparked offin the present journal is here explored somewhat further, focusing on the BaldwinA sizeable dataset comprising millions of lithic artifacts sampling over two millionyears of early paleolithic tool technology from Africa and Eurasia is now available.The widespread presupposition of an exclusively cultural, that is, socially learned,nature of early stone tools from at least Acheulean times onwards has been chal-lenged by researchers who hypothesize that these tools, a crucial element of earlyhominin survival strategies, may partly have been under genetic control, next to theeffects of various other determinants. The discussion this hypothesis has sparked offin the present journal is here explored somewhat further, focusing on the Baldwineffect.A sizeable dataset comprising millions of lithic artifacts sampling over two millionyears of early paleolithic tool technology from Africa and Eurasia is now available.The widespread presupposition of an exclusively cultural, that is, socially learned,nature of early stone tools from at least Acheulean times onwards has been chal-lenged by researchers who hypothesize that these tools, a crucial element of earlyhominin survival strategies, may partly have been under genetic control, next to theeffects of various other determinants. The discussion this hypothesis has sparked offin the present journal is here explored somewhat further, focusing on the Baldwineffect.A sizeable dataset comprising millions of lithic artefacts sampling overr two million years of early palaeolithic tool technology from Africa and Eurasia is now available. The widespread presupposition of an excluA sizeable dataset comprising millions of lithic artefacts sampling overr two million years of early palaeolithic tool technology from Africa and Eurasia is now available. The widespread presupposition of an exclusively cultural, i.e. sA sizeable dataset comprising millions of lithic artefacts sampling overr two million years of early palaeolithic tool technology from Africa and Eurasia is now available. The widespread presupposition of an exclusively cultural, i.e. socially learned, nature of early stone tools from at least Acheulean times onwards has been challenged by researchers who hypothesize that these tools, a crucial element of early hominin survival strategies, may partly have been under genetic control, next to the effects of various other determinants. The discussion this hypothesis has sparked off in the present journal is here explored somewhat further, focussing on the Baldwin Effect. ocially learned, nature of early stone tools from at least Acheulean times onwards has been challenged by researchers who hypothesize that these tools, a crucial element of early hominin survival strategies, may partly have been under genetic control, next to the effects of various other determinants. The discussion this hypothesis has sparked off in the present journal is here explored somewhat further, focussing on the Baldwin Effect. sively cultural, i.e. socially learned, nature of early stone tools from at least Acheulean times onwards has been challenged by researchers who hypothesize that these tools, a crucial element of early hominin survival strategies, may partly have been under genetic control, next to the effects of various other determinants. The discussion this hypothesis has sparked off in the present journal is here explored somewhat further, focussing on the Baldwin Effect. effect.Human Origin

Archaeology and art

Archaeologists have approached the study of art from several directions, drawing their inspiration variously from evolutionary biology, anthropology, and art history.We examine the strengths and weaknesses of each of these approaches and demonstrate the unique opportunities open to archaeology in the study of art, from its origins to the recent past

Darwin, Dilthey and Beyond. Science, literature, and hermeneutical ontology

Wetensch. publicatieFaculteit der Wijsbegeert

Periodizations and double standards in the study of the Palaeolithic

Wetensch. publicatieFaculty of Archeolog

Magnetic ground state of the two isostructual polymeric quantum magnets [Cu(HF2)(pyrazine)2]SbF6 and [Co(HF2)(pyrazine)2]SbF6 investigated with neutron powder diffraction

The magnetic ground state of two isostructural coordination polymers, (i) the quasi-two-dimensional S=1/2 square-lattice antiferromagnet [Cu(HF2)(pyrazine)2]SbF6 and (ii) a related compound [Co(HF2)(pyrazine)2]SbF6, was examined with neutron powder diffraction measurements. We find that the ordered moments of the Heisenberg S=1/2 Cu(II) ions in [Cu(HF2)(pyrazine)2]SbF6 are 0.6(1)μb, while the ordered moments for the Co(II) ions in [Co(HF2)(pyrazine)2]SbF6 are 3.02(6)μb. For Cu(II), this reduced moment indicates the presence of quantum fluctuations below the ordering temperature. We show from heat capacity and electron spin resonance measurements that due to the crystal electric field splitting of the S=3/2 Co(II) ions in [Co(HF2)(pyrazine)2]SbF6, this isostructual polymer also behaves as an effective spin-half magnet at low temperatures. The Co moments in [Co(HF2)(pyrazine)2]SbF6 show strong easy-axis anisotropy, neutron diffraction data, which do not support the presence of quantum fluctuations in the ground state, and heat capacity data, which are consistent with 2D or close to 3D spatial exchange anisotropy