Results 71 to 80 of about 345,422 (307)
Retractions in Rheumatology: Trends, Causes, and Implications for Research Integrity
Arthritis Care &Research, EarlyView.Objective We aimed to describe the trends and main reasons for study retraction in rheumatology literature. Methods We reviewed the Retraction Watch database to identify retracted articles in rheumatology. We recorded the main study characteristics, authors’ countries, reasons for retraction, time from publication to retraction, and trends over time ...
Anna Maria Vettori, Michele Iudici
wiley +1 more source
Policy Search via the Signed Derivative [PDF]
Robotics: Science and Systems V, 2009 We consider policy search for reinforcement learning: learning policy parameters, for some fixed policy class, that optimize performance of a system. In this paper, we propose a novel policy gradient method based on an approximation we call the Signed Derivative; the approximation is based on the intuition that it is often very easy to guess the ...
J. Zico Kolter, Andrew Y. Ng
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Arthritis Care &Research, EarlyView.Objective Systemic lupus erythematosus (SLE) is a heterogenous inflammatory condition with widely varying global prevalence estimates. The frequency of SLE in the general population of Australia has been reported to be notably lower than contemporary estimates in countries such as the United States or United Kingdom, at 19 to 39 per 100,000 as opposed ...
Lucinda Roper +7 more
wiley +1 more source
Frontiers in Robotics and AI, 2017 This study evaluates various evolutionary search methods to direct neural controller evolution in company with policy (behavior) transfer across increasingly complex collective robotic (RoboCup keep-away) tasks.
Geoff Nitschke, Sabre Didi
doaj +1 more source
Consumer Search and Public Policy
Journal of Consumer Research, 1981 Consumers acquire information from a variety of internal and external sources. Sources differ in their abilities to convey different kinds of information. This paper examines the implications of these sources for designing government information programs.
Beales, J. Howard. +3 more
openaire +2 more sources
Arthritis Care &Research, EarlyView.Objective Rheumatic and musculoskeletal diseases (RMDs) are leading causes of physical disability, necessitating support with activities of daily living. This study describes social care received by patients with RMDs in two disparate regions of England: Salford (urban) and Norfolk (rural).
Mehreen Somro +6 more
wiley +1 more source
In search of an exchange rate policy for the dollar
PSL Quarterly Review, 2014 Following the collapse of the Bretton Woods system of fixed exchange rates in 1971, an agreement on the basic principles of a new exchange rate system could not be reached. Many monetary authorities continue to hope that it will ultimately be possible to
T. DE VRIES
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Arthritis Care &Research, EarlyView.People with systemic autoimmune and rheumatic diseases (SARDs) are at higher risk than the general population of experiencing adverse pregnancy and perinatal outcomes such as preeclampsia, intrauterine growth restriction, and maternal and/or fetal death.
Mehret Birru Talabi, Sonya Borrero
wiley +1 more source
A Secure Enhanced Key-Policy Attribute-Based Temporary Keyword Search Scheme in the Cloud
IEEE Access, 2020 Attribute-based keyword search (ABKS), as an important type of searchable encryption, has been widely utilized for secure cloud storage. In a key-policy attribute-based temporary keyword search (KP-ABTKS) scheme, a private key is associated with an ...
Kai Zhang +4 more
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