Results 51 to 60 of about 3,960,810 (264)

Y-chromosome and mtDNA genetics reveal significant contrasts in affinities of modern Middle Eastern populations with European and African populations.

PLoS ONE, 2013
The Middle East was a funnel of human expansion out of Africa, a staging area for the Neolithic Agricultural Revolution, and the home to some of the earliest world empires. Post LGM expansions into the region and subsequent population movements created a
Danielle A Badro, Bouchra Douaihy, Marc Haber, Sonia C Youhanna, Angélique Salloum, Michella Ghassibe-Sabbagh, Brian Johnsrud, Georges Khazen, Elizabeth Matisoo-Smith, David F Soria-Hernanz, R Spencer Wells, Chris Tyler-Smith, Daniel E Platt, Pierre A Zalloua, Genographic Consortium   +14 more
doaj   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Research guide: Refugee settlement and encampment in the Middle East and North Aftica, 1860-1940s

, 2021
The following blog post was published on Refugee History in september 2021. See attached PDF Research guide. We’ve just added a research guide to refugee settlement and encampment in the Middle East and North Africa from the 1860s to the 1940s to
Ibrahim, Baher
core   +1 more source

Impact of the Process Atmosphere During Hot Isostatic Pressing on the Near‐Surface Composition of an Additively Manufactured Austenitic High‐Interstitial Steel

Advanced Engineering Materials, EarlyView.
A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt, J. Hahn, J. Kimm, S. Weber, J. Lentz   +4 more
wiley   +1 more source

SPECIFICS OF GERMAN FOREIGN POLICY IN THE MIDDLE EAST AND NORTH AFRICA

Vestnik RUDN. International Relations, 2017
The article is devoted to an analysis of the main factors, determining German policy in the Middle East and North Africa (MENA). More active German military-technical engagement in the settlement of the crises in the region on the modern stage determines
Г А Ханнанова
doaj   +1 more source

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

Advanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge, Olivia Harper, Jaejun Lee, Sergio Gonzalez‐Munoz, Vladimir V. Tsukruk   +4 more
wiley   +1 more source

Middle East Policy of France under François Hollande (2012-2014)

Vestnik RUDN. International Relations, 2014
The article examines the modern Middle East policy of the French Republic. French foreign policy goals in the Middle East Region, as well as cooperation with the countries of the region on a bilateral level are under consideration.
I Punavia, O K Petrovich-Belkin
doaj  

European Refugees, Migrants and Exiles in the Middle East and North Africa, 19th‑20th Centuries: Sketching a New Research Field

Diasporas: Circulations, Migrations, Histoire
The displacement from Europe to the Middle East and North Africa (MENA) since the late 19th century has only recently attracted the interest of historians.
Esther Moeller, Alexandros Lamprou
doaj   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source