Results 61 to 70 of about 528,199 (384)

Modern and Ancient Genomes Reveal Neolithic Paternal Expansions of Millet and Rice Farmers and Demic Diffusion from China into Mainland Southeast Asia

open access: yesAdvanced Science, EarlyView.
This study clarifies the genetic patterns of paternal lineages across East Asia and Mainland Southeast Asia. Han populations are relatively homogeneous, whereas southern ethnolinguistic minorities display regional structures. Shared Y‐chromosome lineages indicate Neolithic expansions and extensive north‐south gene flow, supporting demic diffusion ...
Yunhui Liu   +15 more
wiley   +1 more source

Aggregation Effects on Optimal Sensor Network Configurations with Distance-Dependent Noise

open access: yesSensors
Optimizing sensor placement for the accurate localization of an uncertain source is crucial for a variety of distributed sensor network applications.
Russell Costa, Thomas A. Wettergren
doaj   +1 more source

Accelerated synthesis of energetic precursor cage compounds using confined volume systems

open access: yesScientific Reports, 2021
Confined volume systems, such as microdroplets, Leidenfrost droplets, or thin films, can accelerate chemical reactions. Acceleration occurs due to the evaporation of solvent, the increase in reactant concentration, and the higher surface-to-volume ratios
Hilary M. Brown   +2 more
doaj   +1 more source

Current Trends in the Biosensors for Biological Warfare Agents Assay

open access: yesMaterials, 2019
Biosensors are analytical devices combining a physical sensor with a part of biological origin providing sensitivity and selectivity toward analyte. Biological warfare agents are infectious microorganisms or toxins with the capability to harm or kill ...
M. Pohanka
semanticscholar   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu   +7 more
wiley   +1 more source

Hard magnetic properties of FeCoNiAlCuXTiX based high entropy alloys

open access: yesAIP Advances, 2021
High entropy alloys (HEA) contain multiple principal alloying elements, and possess unique properties due to the high configurational entropy and lattice strain in the system.
Suok-Min Na   +2 more
doaj   +1 more source

The emergence of human warfare: Current perspectives.

open access: yesAmerican Journal of Physical Anthropology, 2019
The origins of warfare have long been of interest for researchers across disciplines. Did our earliest ancestors engage in forms of organized violence that are appropriately viewed as approximations, forms of, or analogs for more recent forms of warfare?
Marc Kissel, Nam-Choon Kim
semanticscholar   +1 more source

A Subset of Pro‐inflammatory CXCL10+ LILRB2+ Macrophages Derives From Recipient Monocytes and Drives Renal Allograft Rejection

open access: yesAdvanced Science, EarlyView.
This study uncovers a recipient‐derived monocyte‐to‐macrophage trajectory that drives inflammation during kidney transplant rejection. Using over 150 000 single‐cell profiles and more than 850 biopsies, the authors identify CXCL10+ macrophages as key predictors of graft loss.
Alexis Varin   +16 more
wiley   +1 more source

War in the Trenches [PDF]

open access: yes, 2012
Review of Bill Rawling, Surviving Trench Warfare: Technology and the Canadian Corps, 1914-1918.
Hyatt, A.M.J.
core   +1 more source

Quantitative Comparison of Ad‐Valorem Equivalents for Non‐Tariff Trade Measures: WTO Versus TRAINS

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Non‐tariff measures (NTMs) play a growing role in trade policy. Economists quantify NTMs by calculating their Ad Valorem Equivalents (AVE), typically employing one of two global NTM datasets: TRAINS from UNCTAD or WTO notifications. While TRAINS data better measure NTMs, their limited coverage over countries and time is inadequate for many ...
Sionegael Ikeme   +3 more
wiley   +1 more source

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