Results 131 to 140 of about 489,491 (343)

Mesoporous Silica Microspheres by Super‐Fast Alkaline Etching of Micrometer‐Sized Stöber Particles

open access: yesAdvanced Engineering Materials, EarlyView.
Microscale silica particles are prepared along with a modified, scalable Stöber synthesis using the continuous addition of tetraethoxy silane to an ethanolic solution of ammonia with KCl. Etching with hydroxide ions at 95 °C gave porous analogs within minutes. Monodisperse particles are isolable in high yield after precipitation in ethanol.
Adrian Vaghar   +2 more
wiley   +1 more source

A fresh look on the role of the second kind of knowledge in Spinoza’s Ethics [PDF]

open access: yes, 2017
In this paper, through a close reading of Spinoza's use of common notions I argue for the role of experiential and experimental knowledge in Spinoza's ...
Toth, Oliver Istvan
core   +1 more source

Optimized Strategy for Fabricating High‐Aspect‐Ratio Periodic Structures Over Large Areas Using ps‐Direct Laser Interference Patterning

open access: yesAdvanced Engineering Materials, EarlyView.
Picosecond direct laser interference patterning (DLIP) enables precise microstructure fabrication on stainless steel. Using a multiscan approach, high‐aspect‐ratio patterns are achieved. Fluence influences structure growth and homogeneity, with smaller periods yielding better uniformity.
Fabian Ränke   +5 more
wiley   +1 more source

The antecedents of word of mouth intentions about a Brazilian tourist destination

open access: yesTourism & Management Studies, 2014
The purpose of this research is to assess the constructs positive affection, negative affection, service quality, hedonic value, utilitarian value and satisfaction as antecedents considered by foreign tourists in their intention to recommend a ...
Márcio Moutinho Abdalla   +2 more
doaj  

Priscian on Perception [PDF]

open access: yes, 2017
An aporia posed by Theophrastus prompts Priscian to describe the process by which perception formally assimilates to its object as a progressive perfection. I present an interpretation of Priscian’s account of perception’s progressive perfection.
Kalderon, Mark Eli
core  

3D Bioprinting of Thick Adipose Tissues with Integrated Vascular Hierarchies

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
An advanced 3D bioprinting technique is used here to create thick adipose tissues with a central, vessel and extensive branching. The construct is made using alginate, gelatin and collagen‐based bioinks. Flow through the complex vessel network is demonstrated as well as its successful integration with a femoral artery following implantation in a rat ...
Idit Goldfracht   +5 more
wiley   +1 more source

Predisposing factors in enterotoxemias of camels (Camelus dromedarius) caused by Clostridium perfringens type A [PDF]

open access: yes, 1991
Clostridium perfringens type A a été isolé à partir de différents organes et d'intestins prélevés sur des dromadaires d'élevage et de course, morts des suites d'entérotoxémies aiguës et subaiguës dans deux foyers distincts.
Ali, M.   +3 more
core  

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

open access: yesAdvanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu   +14 more
wiley   +1 more source

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