Results 21 to 30 of about 191,759 (261)

Analytic solution for double optical metasurface beam scanners

Scientific Reports, 2022
Optical metasurfaces are researched more and more intensively for the possible realization of lightweight and compact optical devices with novel functionalities. In this paper, a new beam-steering system based on double metasurface lenses (metalenses) is
Jingru Wang, Yuehe Ge, Zhizhang David Chen, Zhimeng Xu, Hai Zhang   +4 more
doaj   +1 more source

Benefits of Endogenous Spatial Attention During Visual Double-Training in Cortically-Blinded Fields

Frontiers in Neuroscience, 2022
Recovery of visual discrimination thresholds inside cortically-blinded (CB) fields is most commonly attained at a single, trained location at a time, with iterative progress deeper into the blind field as performance improves over several months. As such,
Matthew R. Cavanaugh, Duje Tadin, Duje Tadin, Marisa Carrasco, Krystel R. Huxlin, Krystel R. Huxlin   +5 more
doaj   +1 more source

Supraclavicular brachial plexus block: Comparison of varying doses of dexmedetomidine combined with levobupivacaine: A double-blind randomised trial

Indian Journal of Anaesthesia, 2017
Background and Aims: The ideal dose of dexmedetomidine for brachial plexus block is a matter of debate. This study was carried out to evaluate 50 μg or 100 μg of dexmedetomidine added to 0.5% levobupivacaine, with regard to the duration of analgesia. Our
Srinivasa Rao Nallam, Sunil Chiruvella, Swetha Karanam   +2 more
doaj   +1 more source

Effectiveness and Safety of Heparinized Saline versus Normal Saline in Maintaining Patency of Peripheral Intravenous Locks in Neonates at a Tertiary Care Hospital [PDF]

Journal of Clinical and Diagnostic Research, 2017
Introduction: Heparinized saline is usually used as a regular flush solution to prevent occlusion of peripheral intravenous locks in neonates but the risks associated with the use of heparin cannot be ignored in these patients.
Treasa Mathews, Leelavathi D Acharya, Leslie Edward Simon Lewis, Rayapudi Udaya Bhaskar, Alsha Abdul Rahim, Vivek Bhanubhai Prajapati, Vasudev Guddattu, Maria Mathews   +7 more
doaj   +1 more source

Multicenter, Double-Blinded, Randomized, Active-Sham Controlled Clinical Study Design to Assess the Safety and Effectiveness of a Novel High Frequency Electric Nerve Block System in the Treatment of Post-Amputation Pain (The QUEST Study)

Journal of Pain Research, 2022
Leonardo Kapural,1 Nemath Syed Shah,2 Zi-Ping Fang,2 Nagy Mekhail3 1Carolinas Pain Institute, Winston-Salem, NC, USA; 2Neuros Medical, Inc., Willoughby Hills, OH, USA; 3Evidence-Based Pain Management Research, Department of Pain Management, Cleveland ...
Kapural L, Syed Shah N, Fang ZP, Mekhail N   +3 more
doaj  

How to maintain the maximal level of blinding in randomisation for a placebo-controlled drug trial

Contemporary Clinical Trials Communications, 2019
We illustrate the approach of randomising treatments and compare it with the traditional approach of randomising patients, using a case study drawn from the authors’ experience in clinical trials. The setting is a double-blind parallel two-arm randomised
Lei Clifton, David A. Clifton
doaj   +1 more source

Caffeine supplementation improves countermovement jump in youth soccer players: a pilot study

Revista Española de Nutrición Humana y Dietética, 2017
Introduction: The objective of this study was to analyze the effect of caffeine ingestion in soccer performance, particularly in the countermovement jump test (CMJ).
Juan Diego Hernández-Camacho, Javier Vázquez-Carrión, Elena Fuentes-Lorca, Heliodoro Moya-Amaya   +3 more
doaj   +1 more source

Participant Blinding and Gastrointestinal Illness in a Randomized, Controlled Trial of an In-Home Drinking Water Intervention

Emerging Infectious Diseases, 2002
We conducted a randomized, triple-blinded home drinking water intervention trial to determine if a large study could be undertaken while successfully blinding participants.
John M. Colford, Judy R. Rees, Timothy J. Wade, Asheena Khalakdina, Joan F. Hilton, Isaac J. Ergas, Susan Burns, Anne Benker, Catherine Ma, Cliff Bowen, Daniel C. Mills, Duc J. Vugia, Dennis D. Juranek, Deborah A. Levy   +13 more
doaj   +1 more source

Tennis elbow, study protocol for a randomized clinical trial: needling with and without platelet-rich plasma after failure of up-to-date rehabilitation

Journal of Orthopaedic Surgery and Research, 2020
Background The conservative management of lateral epicondylitis is known to be a difficult-to-treat annoying condition. A treatment with platelet-rich plasma (PRP) is often performed, but its efficacy remains controversial. Methods This study is a single-
A. J. Schwitzguebel, M. Bogoev, V. Nikolov, F. Ichane, A. Lädermann   +4 more
doaj   +1 more source

Theoretical Justification and Normative Construction for the Reconstruction of the Medical Damage Appraisal System

Yixue yu zhexue
Currently, China's medical damage appraisal system is trapped in a "dualistic" dilemma: the technical appraisal of medical accidents is "scientific but lacks impartiality", while the medical damage appraisal is "impartial but lacks scientificity".
Lu LIANG, Qingsong XIE
doaj   +1 more source