Results 41 to 50 of about 36,884 (267)

The Case of a 40‐Year‐Old Man With New‐Onset Status Epilepticus in the Setting of HIV Infection

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 40‐year‐old man from Andhra Pradesh in India, while on regular antiretroviral treatment (ART) for long‐standing HIV infection presented with a 1‐day history of new‐onset status epilepticus. CT and MRI brain showed multifocal cerebral ring lesions, some of which demonstrated characteristic ‘hole‐with‐a‐dot’ sign.
Vadde Akhil, Ramachandiran Nandhagopal
wiley   +1 more source

Size-dependent mobility of soil colloids and associated organic carbon loading capacity following stepwise decreases in redox potential

Geoderma
Release and transport of organic carbon (OC), a large portion of which is complexed with mineral colloids, can lead to long-term C sequestration. However, the role of mobile colloids in carbon cycling is not well understood.
Weila Li, Jing Yan, Mohammad Zafar Afsar, Yan Jin   +3 more
doaj   +1 more source

Dichloromethylation of enones by carbon nitride photocatalysis

Nature Communications, 2020
Long-lived carbon nitride radicals have been used in several photocatalytic reactions. Herein, long-lived potassium poly(heptazine imide) radicals enable synthesis of γ,γ-dichloroketones from enones by addition of CHCl2 moiety, generated from chloroform,
Stefano Mazzanti, Bogdan Kurpil, Bartholomäus Pieber, Markus Antonietti, Aleksandr Savateev   +4 more
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Transport behaviors of humic acid, kaolin and kaolin–humic acid compound colloids on naphthalene in floating islands with biofilmed fillers

Applied Water Science, 2019
As one of the persistent organic pollutants, the investigations of naphthalene transports with humic acid, kaolin and kaolin–humic acid compound colloids by passing through the floating islands with biofilmed filler matrix pores were checked out ...
Sheng Yu, Bang-yu Li, Yi-hu Chen
doaj   +1 more source

Shape-preserving erosion controlled by the graded microarchitecture of shark tooth enameloid

Nature Communications, 2020
Shark teeth have short lifespans yet can be subject to significant mechanical damage. Here, the authors report on a site-specific damage mechanism in shark teeth enameloid, which maintains tooth functional shape, providing experimental evidence that ...
Shahrouz Amini, Hajar Razi, Ronald Seidel, Daniel Werner, William T. White, James C. Weaver, Mason N. Dean, Peter Fratzl   +7 more
doaj   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Research Progress on Functional Properties of Polysaccharide-Based Food Colloids and Their Application in Food Processing [PDF]

Shipin Kexue
Food colloids refer to the common multicomponent heterogeneous dispersion systems found in foods, which can be divided into protein-based and polysaccharide-based colloids according to their components.
YANG Rong, ZANG Yiyu, WU Peng, SUN Cuixia, FANG Yapeng
doaj   +1 more source