Results 71 to 80 of about 14,035 (212)

Micro-optic lens for data storage [PDF]

open access: yes
A new type of microlens for data storage applications that has improved off-axis performance is described. The lens consists of a micro Fresnel pattern on a curved substrate. The radius of the substrate is equal to the focal length of the lens.
Erwin, J. Kevin   +4 more
core   +1 more source

GRADE‐Based Clinical Practice Guidelines for Emergency Department Delirium Risk Stratification, Screening, and Brain Imaging in Older Patients With Suspected Delirium

open access: yesAcademic Emergency Medicine, EarlyView.
ABSTRACT Objectives This portion of the Geriatric Emergency Department (GED) Guidelines 2.0 focuses on delirium in the emergency department (ED). Methods A multidisciplinary group applied the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach to assess the certainty of evidence and develop recommendations related to ...
Sangil Lee   +13 more
wiley   +1 more source

Segmented coronagraph design and analysis (SCDA): an initial design study of apodized vortex coronagraphs [PDF]

open access: yes, 2017
The segmented coronagraph design and analysis (SCDA) study is a coordinated effort, led by Stuart Shaklan (JPL) and supported by NASA's Exoplanet Exploration Program (ExEP), to provide efficient coronagraph design concepts for exoplanet imaging with ...
Jewell, Jeffrey   +4 more
core   +1 more source

OK Boomer: A longitudinal analysis unravelling generational cohort differences in alcohol consumption among Australians

open access: yesAddiction, EarlyView.
Abstract Background and aims Alcohol consumption is a key preventable cause of disease and injury worldwide. Recent evidence suggests that younger generations may be consuming less alcohol. However, it is still uncertain whether this trend is temporary or indicative of an enduring generational shift.
Gianluca Di Censo   +3 more
wiley   +1 more source

Decentralized propaganda in the era of digital media: The massive presence of the Chinese state on Douyin

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract The rise of social media in the digital era poses unprecedented challenges to authoritarian regimes that aim to influence public attitudes and behaviors. To address these challenges, we argue that authoritarian regimes have adopted a decentralized approach to produce and disseminate propaganda on social media.
Yingdan Lu   +3 more
wiley   +1 more source

A review of angle kappa and multifocal intraocular lenses and their effect on visual outcomes

open access: yesActa Ophthalmologica, EarlyView.
Abstract Although most patients are satisfied with their vision after multifocal intraocular lens (IOL) implantation, dissatisfaction has been reported for various reasons, including poor visual outcomes and visual disturbances. Many published reports hypothesise that preoperative angle kappa may be an associated factor in patient dissatisfaction ...
Thomas Kohnen   +2 more
wiley   +1 more source

Reflections on Consciousness in Intensive Care

open access: yesActa Paediatrica, EarlyView.
ABSTRACT Evaluating consciousness in intensive care is pivotal to relieving suffering with analgesic or sedative drugs and in prognosis and diagnoses. The usual clinical perspective is to equate consciousness with responsiveness, assuming functional motor responses and sympathetic activity of the patient. Clinical diagnoses of coma may be wrong in more
Michael Broomé, Tiit Mathiesen
wiley   +1 more source

Semidiaphanam Tremuli Narcissuli Ideam Lacteam1: Ehrenfried Walther von Tschirnhaus (1651–1708) and His Determined Search for the Porcelain Principle

open access: yesArchaeometry, EarlyView.
ABSTRACT With this contribution, an attempt is being made to chart the timeline of the invention of the European hard‐paste porcelain based on historical documents. They were evaluated to trace the development lines from Tschirnhaus's early experiments with burning mirrors and lenses in the 1680s to finding ‘wax porcelain’ around 1694 to the ...
Robert B. Heimann
wiley   +1 more source

Perspective on insomnia in disorders of consciousness

open access: yes
Sleep Research, EarlyView.
Glenn J. M. van der Lande, Jitka Annen
wiley   +1 more source

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