Results 141 to 150 of about 819,835 (306)

Evaluation of low trace DNA recovery techniques from ridged surfaces

, 2013
The first step in the DNA profiling process is the recovery of DNA from the crime scene or item. Such surfaces can be varying with absorbent and non-absorbent surfaces.
Williams, Graham, Ahmed, Waseeh, Pandre, Manohar, Omelia, Emma J., Beasley, Emma   +4 more
core   +1 more source

The timing and nature of marine ecosystem recovery following the Permian-Triassic mass extinction

npj Biodiversity
The Permian-Triassic mass extinction (PTME; c. 252 million years ago) was the most devastating extinction event of the Phanerozoic, resulting in up to 90% of marine animal species becoming extinct and profound ecological changes from Palaeozoic to ...
Annabel L. Nicholls, Paul B. Wignall, Haijun Song, Jack O. Shaw, Andrew P. Beckerman, Alexander M. Dunhill   +5 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Mission-Oriented Public Policy for Nature Recovery

Natural ecosystems and the benefits they provide continue to decline. A dominant narrative views a lack of funding for nature conservation as a major cause, emphasising the need to attract private finance.
Georgina Holmes-Skelton, Andrew Allen, Natalie Duffus, Erik Gomez-Baggethun, Katherine Simpson, Michael Clark, Puninda Thind, Sophus zu Ermgassen, Mariana Mazzucato, Alexandre Chausson, Katie Kedward   +10 more
core   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Recovery of Forest Land Due to Forest Landscape Restoration Following Restriction of Mining Activities in the Northern Part of Amani Nature Forest Reserve, Tanga, Tanzania

Forest landscape restoration plays a pivotal role in preserving global biodiversity and enhancing human well-being by addressing social, economic, and ecological challenges.
Ramiya, Abdulkadir Mohammed, Msoma, Abraham Johnbosco Arsen, Manyanda, Bernardol John, Nzunda, Emmanuel Fred   +3 more
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Neurogenesis and astrogenesis contribute to vestibular compensation in the neurectomized adult cat: cellular and behavioral evidence

, 2009
Neurogenesis occurs in some regions of the adult mammalian brain and gives rise to neurons integrated into functional networks. In pathological or postlesional conditions, neurogenesis and astrogenesis can also occur, as demonstrated in the deafferented ...
Jean Michel Brezun, Sophie Dutheil, Jacques Leonard, Brahim Tighilet, Michel Lacour   +4 more
core  

Motor recovery following capsular stroke [PDF]

, 1993
The functional anatomy of motor recovery was studied by assessing motor function quantitatively in 23 patients following capsular or striatocapsular stroke.
Danek, Adrian, Hamburger, C., Fries, Wolfgang, Scheidtmann, K.   +3 more
core