scholarly journals Functional analysis of Middle Palaeolithic flint tools through experimental use wear analysis: the case of Prado Vargas (Cornejo) and Fuente Mudarra (Atapuerca), northern Spain

2021 ◽  
Author(s):  
Claudia Santamaría Cabornero ◽  
Marta Navazo Ruiz ◽  
Alfonso Benito-Calvo
Keyword(s):  
Functional Analysis ◽  
Middle Palaeolithic ◽  
Key Factors ◽  
Northern Spain ◽  
Wear Analysis ◽  
Functional Differences ◽  
Use Wear ◽  
Experimental Use

There are functional differences related to the peculiarities of each settlement. The material used to manufacture tools is one of the key factors in the analysis of use-wear traces in traceological studies. An experiment was conducted to test the development of these functional traces in two types of flints found at two Middle Palaeolithic settlements: Neogene flint, from the Fuente Mudarra open-air site Sierra de Atapuerca, and Cretaceous flint, from the Prado Vargas cave site, Ojo Guareña. After reviewing the characteristic of each type of flint, they were compared to previous archaeological studies in order to check the reliability of the analysis of these settlements.

Percussive-Abrasive Stone Tools from Chagyrskaya Cave: Results of Functional Analysis

2021 ◽  
Vol 49 (2) ◽  
pp. 23-31
Author(s):  
M. V. Seletsky ◽  
A. Y. Fedorchenko ◽  
P. V. Chistyakov ◽  
S. V. Markin ◽  
K. A. Kolobova
Keyword(s):  
Raw Materials ◽  
Stone Tools ◽  
Lithic Assemblage ◽  
Wear Analysis ◽  
Use Wear ◽  
Experimental Use ◽  
Abrasive Stone ◽  
Source Of Information ◽  
Reference Samples ◽  
Comprehensive Study

This article presents a comprehensive study of percussive-abrasive active stone tools from Chagyrskaya Cave, using experimental use-wear and statistical methods, supplemented by 3D-modeling. Experiments combined with use- wear analysis allowed us to determine the functions of these tools by comparing the working surfaces and use-wear traces in the Chagyrskaya samples with those in the reference samples. As a result, we identified 19 retouchers, four hammerstones for processing mineral raw materials, and one hammer for splitting bone, which indicates the dominance of secondary processing over primary knapping in the Chagyrskaya lithic assemblage. Using statistical analysis, we traced the differences in the dimensions of the manuports and lithics under study. These artifacts are a promising and underestimated source of information for identifying working operations associated with stone- and bone-processing; moreover, they can provide new data on the functional attribution of sites and the mobility of early hominins.

scholarly journals How do you like your cereal? A qualitative and quantitative use-wear analysis on archaeological grinding tools from prehistoric Greek sites

Wear ◽  
2021 ◽  
pp. 203636
Author(s):  
Danai Chondrou ◽  
Maria Bofill ◽  
Haris Procopiou ◽  
Roberto Vargiolu ◽  
Hassan Zahouani ◽  
...  
Keyword(s):  
Qualitative And Quantitative ◽  
Wear Analysis ◽  
Use Wear

Inferring human activities from the Late Pleistocene to Holocene in Topogaro 2, Central Sulawesi through use-wear analysis

2021 ◽  
Vol 37 ◽  
pp. 102905
Author(s):  
Riczar Fuentes ◽  
Rintaro Ono ◽  
Nasrullah Aziz ◽  
Sriwigati ◽  
Nico Alamsyah ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Human Activities ◽  
Wear Analysis ◽  
Use Wear ◽  
Late Pleistocene To Holocene ◽  
Central Sulawesi

scholarly journals Structural, Evolutionary, and Functional Analysis of the Protein O-Mannosyltransferase Family in Pathogenic Fungi

2021 ◽  
Vol 7 (5) ◽  
pp. 328
Author(s):  
María Dolores Pejenaute-Ochoa ◽  
Carlos Santana-Molina ◽  
Damien P. Devos ◽  
José Ignacio Ibeas ◽  
Alfonso Fernández-Álvarez
Keyword(s):  
Functional Analysis ◽  
Secretory Pathway ◽  
Pathogenic Fungi ◽  
Fungal Pathogenesis ◽  
Post Translational Modification ◽  
Key Factors ◽  
Wide Range ◽  
Single Deletion ◽  
Asymmetrical Impact ◽  
Substrate Proteins

Protein O-mannosyltransferases (Pmts) comprise a group of proteins that add mannoses to substrate proteins at the endoplasmic reticulum. This post-translational modification is important for the faithful transfer of nascent glycoproteins throughout the secretory pathway. Most fungi genomes encode three O-mannosyltransferases, usually named Pmt1, Pmt2, and Pmt4. In pathogenic fungi, Pmts, especially Pmt4, are key factors for virulence. Although the importance of Pmts for fungal pathogenesis is well established in a wide range of pathogens, questions remain regarding certain features of Pmts. For example, why does the single deletion of each pmt gene have an asymmetrical impact on host colonization? Here, we analyse the origin of Pmts in fungi and review the most important phenotypes associated with Pmt mutants in pathogenic fungi. Hence, we highlight the enormous relevance of these glycotransferases for fungal pathogenic development.

Sign in / Sign up

Export Citation Format

Share Document