Results 101 to 110 of about 88,321 (214)

Stability of Gas Clouds in Galactic Nuclei: An Extended Virial Theorem

open access: yes, 2015
Cold gas entering the central $1$ to $10^2$ pc of a galaxy fragments and condenses into clouds. The stability of the clouds determines whether they will be turned into stars or can be delivered to the central supermassive black hole (SMBH) to turn on an ...
Amaro-Seoane, Pau   +2 more
core   +1 more source

Navigating Digital Transformation? The Guiding Role and Socialization Processes of Change Agents

open access: yesPublic Administration, EarlyView.
ABSTRACT This article investigates the role of internal change agents in advancing digital transformation within public sector organizations. In response to the complexities of digitalization, these change agents guide their peers in adopting technology and bridging the gap between strategy and implementation. We draw on an 18‐month diary study (N = 68,
Caroline Fischer, Jessica Breaugh
wiley   +1 more source

Trends in utilization and impact of hospital procedural volume on mortality after endovascular thrombectomy for acute ischemic stroke

open access: yesJournal of Stroke and Cerebrovascular Diseases
Objectives: Endovascular thrombectomy (EVT) has become an established treatment for eligible acute ischemic stroke (AIS) patients, but data on mortality trends and the association between procedural volume and outcomes in the United States is limited ...
Zafar Ali, MD   +5 more
doaj   +1 more source

The Impact of an Integrated steM Camp on Middle School Students' Enjoyment, Career Knowledge, and Career Interest

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT Much of the work in STEM camps tends to be science‐driven with little attention given to mathematics. Guided by a mixed methods embedded research design using data from observations, questionnaires, and a group interview, we investigate if a camp that explicitly integrates mathematics had a positive impact on middle school students' STEM ...
Queshonda J. Kudaisi   +3 more
wiley   +1 more source

Ultrasound-guided adjunct to endovascular treatment of long-segment femoropopliteal chronic total occlusion

open access: yesEuropean Journal of Medical Research
Background To describe the outcomes of endovascular treatment (EVT) using ultrasound (US) adjunct guidance for long-segment femoropopliteal chronic total occlusion (LSFP-CTO).
Da-shuai Wang   +8 more
doaj   +1 more source

Extreme Value Theory and Value at Risk : Application to Oil Market [PDF]

open access: yes
Recent increases in energy prices, especially oil prices, have become a principal concern for consumers, corporations, and governments. Most analysts believe that oil price fluctuations have considerable consequences on economic activity.
Abdelwahed Trabelsi   +2 more
core  

Challenges to Learning STEM‐Related Subjects: Insights From Qatar's Middle and High School Students

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT This study delved into the challenges encountered by Qatar's middle and high school students in learning STEM‐related subjects, investigating the personal and contextual influences. Utilizing a quantitative survey‐based research design, the data were collected from 1428 middle and high school students.
Abdel Latif Sellami   +5 more
wiley   +1 more source

Theory of spike timing based neural classifiers

open access: yes, 2010
We study the computational capacity of a model neuron, the Tempotron, which classifies sequences of spikes by linear-threshold operations. We use statistical mechanics and extreme value theory to derive the capacity of the system in random classification
A. Engel   +7 more
core   +1 more source

Bilateral dynamic cerebral autoregulation assessment during endovascular treatment in large‐vessel occlusion stroke

open access: yesExperimental Physiology, EarlyView.
Abstract Recanalization by endovascular treatment (EVT) is effective in acute ischaemic stroke caused by large‐vessel occlusion. Better understanding of the pathophysiology could possibly identify targets for improving peri‐procedural management and thereby patient outcome.
Adam Vittrup Heiberg   +9 more
wiley   +1 more source

Safety and efficacy of intravenous thrombolysis before mechanical thrombectomy in patients with atrial fibrillation

open access: yesSystematic Reviews
Background Intravenous thrombolysis (IVT) before endovascular thrombectomy (EVT) is the standard treatment for patients with acute ischemic stroke caused by large vessel occlusion (AIS-LVO).
Qiangji Bao   +5 more
doaj   +1 more source

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