Results 91 to 100 of about 801,284 (359)

Gamma Knife Radiosurgery Treatment for Metastatic Melanoma of the Trigeminal Nerve and Brainstem: A Case Report and a Review of the Literature

open access: yesCase Reports in Neurological Medicine, 2013
Objective and Importance. Brainstem metastases (BSMs) are uncommon but serious complications of some cancers. They cause significant neurological deficit, and options for treatment are limited.
Halloran E. Peterson   +8 more
doaj   +1 more source

Compound polyglactin 910/polypropylene small vessel prostheses [PDF]

open access: yesJournal of Vascular Surgery, 1987
This study evaluated morphologic and functional characteristics of tissue reactions to compound prostheses of 69% absorbable polyglactin 910 (PG910) and 31% nonabsorbable polypropylene in the rabbit. Forty-two woven PG910/polypropylene prostheses (24 X 4 mm internal diameter) implanted into rabbit infrarenal aortas were harvested after 2 weeks to 12 ...
Katherine A. Widerborg   +7 more
openaire   +3 more sources

Monetary policy rules and the persistence of inflation and output [PDF]

open access: yes, 2002
This paper argues that the parameters of monetary policy rules affect the persistence of inflation and output. Persistence is lower if monetary policy emphasises the price level or if there is an inflation target. A greater emphasis on output increases
Bratsiotis, GJ, Martin, C
core  

Anion Localization on Termini of a Non‐Fullerene Acceptor Aids Charge Transport

open access: yesAdvanced Energy Materials, EarlyView.
Time‐resolved infrared spectroscopy, in conjunction with computational chemistry, transient absorption spectroscopy, and morphology characterization, is employed to demonstrate spatial localization of the radical anion on the terminal units of non‐fullerene acceptors.
Junjun Guo   +13 more
wiley   +1 more source

Effect of glazing and polishing on opalescence and fluorescence of dental ceramics

open access: yesClinical and Experimental Dental Research, Volume 8, Issue 6, Page 1645-1654, December 2022., 2022
Abstract Objective Tooth enamel has opalescence and fluorescence, which should be mimicked by esthetic dental restorations. The purpose of this study was to compare the effects of glazing and polishing on the opalescence and fluorescence of dental ceramics. Materials and Methods Twenty‐four discs were fabricated of feldspathic, IPS e.max, zirconia, and
Sedighe Sadat Hashemikamangar   +4 more
wiley   +1 more source

Chemical Bonds Containing Hydrogen: Choices for Hydrogen Carriers and Catalysts

open access: yesAngewandte Chemie, EarlyView.
Hydrogen carriers utilizing B─H, C─H, N─H, and O─H bonds are evaluated for their potential in hydrogen storage and release. Key candidates such as methanol, ammonia, and formic acid are examined with a focus on critical factors influencing performance, including the nature of chemical bonds, reaction pathways, and catalytic processes.
James Cashel   +9 more
wiley   +2 more sources

Pilot Study on Gaze Characteristics of Older Drivers While Watching Driving Movies

open access: yesGeriatrics
Objective: This study aims to clarify the gazing characteristics of older drivers while driving cars using a gaze analysis device. Methods: The participants included 16 older and 12 middle-aged drivers who drove cars daily. After conducting cognitive and
Kaori Kawabata   +5 more
doaj   +1 more source

Adult learning theories and medical education : a review [PDF]

open access: yes, 2009
Adult learning theories describe ways in which adults assimilate knowledge, skills and attitudes. One popular theory is andragogy. This is analysed in detail in this review. The importance of extrinsic motivation and reflective practice in adult learning
Abela, Jurgen C.
core  

Donor‐π‐Acceptor Photoinitiators for High‐Efficiency Visible LED and Sunlight Polymerization and High‐Precision 3D Printing

open access: yesAngewandte Chemie, EarlyView.
The proposed D‐π‐A structured dyes enable efficient electron transfer with additives, thanks to their tailored architecture, making them ideal for high‐performance photoinitiating systems. They allow the fabrication of high‐precision 3D printed objects and exhibit outstanding performance under sunlight.
Ji Feng   +9 more
wiley   +2 more sources

Study of hot deformation behavior of CuFe2 alloy [PDF]

open access: yes, 2019
Nil strength temperature of 1062 degrees C and nil ductility temperature of 1040 degrees C were experimentally set for CuFe2 alloy. The highest formability at approx. 1020 degrees C is unusable due to massive grain coarsening.
Hadasik, Eugeniusz   +7 more
core   +1 more source

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