Results 161 to 170 of about 1,840 (258)

Early colonization before inundation consistent with northern glacial refugia in Southern Doggerland revealed by sedimentary ancient DNA. [PDF]

Proc Natl Acad Sci U S A
Allaby RG, Ware R, Cribdon R, Hansford TA, Kinnaird T, Hamilton D, Kistler L, Murgatroyd P, Bates R, Fitch S, Gaffney V.   +10 more
europepmc   +1 more source

Fundraising as Contracting: Why Nonprofits Accept In‐Kind Donations

Nonprofit Management and Leadership, EarlyView.
ABSTRACT In‐kind (nonmonetary) donations are a popular form of philanthropy that have received much less scholarly attention than monetary gifts. This study documents the prevalence of types of in‐kind giving and associated organizational practices, then explores links between the perceptions of nonprofit managers, organizational practices, and ...
Elizabeth Searing, Sarah Jacobson, Angela de Oliveira, Tianyi Li   +3 more
wiley   +1 more source

Metamorphic evolution of amphibolite from Proto-Tethys South Altyn orogen and its geological significance. [PDF]

Sci Rep
Zhang S, Ma T, Gai Y, Liu L.
europepmc   +1 more source

A GIS‐Based Approach to Modeling Carnivore Activity in the Pleistocene Site of Cova del Rinoceront (Iberian Peninsula)

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT A significant methodological difficulty in the interpretation of Pleistocene zooarchaeological assemblages is the identification of taphonomic agents that modify and break bones. Carnivores, in particular, have been a main focus, as competition with carnivores may have affected carcass acquisition opportunities for humans in the past.
Gerard Terrón‐Marín, Joan Daura, Jennifer Parkinson, Montserrat Sanz   +3 more
wiley   +1 more source

Record of paleo water divide locations reveals intermittent divide migration and links to paleoclimate proxies. [PDF]

Proc Natl Acad Sci U S A
Harel E, Goren L, Crouvi O, Porat N, Qu T, Ginat H, Shelef E.   +6 more
europepmc   +1 more source

Comparative Analysis of Solid and Foamed PA6 Composite Architectures Reinforced With Graphene Nanoplatelets

Polymer Engineering &Science, EarlyView.
Overview of the processing, microstructure, and multifunctional properties of graphene nanoplatelet (GnP)‐reinforced PA6 composite foams. ABSTRACT Lightweight polymer composites combining solid and foamed structures offer significant potential for balancing mechanical performance and weight reduction.
Elif Ulutas, Munir Tasdemir
wiley   +1 more source

Late Quaternary activities of the Xinbaoan-Shacheng fault in the North China Plain. [PDF]

Sci Rep
Qiu C, Yu Z, Li L, Wang W, Zhao Q, Zheng R, Yang Y.   +6 more
europepmc   +1 more source

In Situ Atmospheric Plasma Treatment Enables First‐Layer Adhesion of PEEK on Borosilicate Glass for FDM‐Printed Non‐Assembly Mechanisms

Polymer Engineering &Science, EarlyView.
A printhead‐mounted plasma nozzle activates the PEEK melt and the borosilicate print‐bed at the instant of contact. Only this simultaneous in‐situ activation of both interfaces yields reliable first‐layer adhesion (0.22 MPa). ABSTRACT Fused deposition modeling of poly‐ether‐ether‐ketone (PEEK) requires a high‐temperature build plate, yet PEEK does not ...
Paul Sager, Nikolai Schuljak, Arne Bender, Rainer Adelung   +3 more
wiley   +1 more source

Investigation of Thermoluminescence Characteristics and Kinetics of Natural Obsidian. [PDF]

Luminescence
Avci H.
europepmc   +1 more source

Repeated Pleistocene Permafrost Episodes in the Western Pannonian Basin

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Concerning the study of past periglacial processes, the Pannonian Basin is a key area as it contains the southernmost frost polygons found in Central Europe. The presence or absence of permafrost is still, however, a matter of debate, and data on the timing of frost action are also scarce.
Krisztina Sebe, Ágnes Novothny, Gergely Surányi, Barbara Varga, László Fodor, Gábor Csillag   +5 more
wiley   +1 more source