Results 121 to 130 of about 542,281 (388)

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

open access: yesAdvanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma   +10 more
wiley   +1 more source

Le diverticule para urétéral avec reflux vésico urétéral type III: un cas inhabituel

open access: yesAfrican Journal of Urology, 2017
Introduction: le diverticule para urétéral est une uropathie malformative rare. Nous rapportons un cas et discutons les aspects cliniques, diagnostiques et thérapeutiques. Observation: M.
A. Kassogué   +5 more
doaj   +1 more source

Polyimidazoles via aromatic nucleophilic displacement [PDF]

open access: yes, 1991
Polyimidazoles (PI) are prepared by the aromatic nucleophilic displacement reaction of di(hydroxyphenyl) imidazole monomers with activated aromatic dihalides or activated aromatic dinitro compounds. The reactions are carried out in polar aprotic solvents
Connell, John W., Hergenrother, Paul M.
core   +2 more sources

Asymmetric Strategies for the Synthesis of Enantiopure α‐/β‐/γ‐Thio‐Carboxylic Acids Bearing a Stereocentre at CS Bond

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Enantioenriched α‐/β‐/γ‐thiocarboxylic acids featuring C–S chirality are valuable targets in organic synthesis. This review outlines recent progress in their asymmetric synthesis, including chiral pool approaches, metal‐ /organo‐catalysis, and emerging biocatalytic strategies. Enantiomerically pure α‐/β‐/γ‐thiocarboxylic acids bearing a stereocentre at
Jingyue Wu, Daniele Castagnolo
wiley   +1 more source

Antimicrobial prophylaxis for children with vesicoureteral reflux.

open access: yesNew England Journal of Medicine, 2014
This is a multi-centric randomized controlled trial [1] comparing cotrimoxazole prophylaxis versus no prophylaxis in children (
I. Hewitt, R. Dall'amico, G. Montini
semanticscholar   +1 more source

What went wrong? The flawed concept of cerebrospinal venous insufficiency [PDF]

open access: yes, 2013
In 2006, Zamboni reintroduced the concept that chronic impaired venous outflow of the central nervous system is associated with multiple sclerosis (MS), coining the term of chronic cerebrospinal venous insufficiency ('CCSVI'). The diagnosis of 'CCSVI' is
Al-Omari MH   +22 more
core   +2 more sources

Microwave‐Assisted One‐Pot Synthesis of Alkyl Levulinates From Post‐Harvest Vegetable Waste

open access: yesAdvanced Sustainable Systems, EarlyView.
Vegetable waste is valorized through Soxhlet extraction using H₂O₂ and heteropolyacid (HPA), followed by material characterization (XRD, FTIR, TGA, DSC). A microwave‐assisted reaction at 170 °C for 30 min with HPA and alcohol yields bio‐based esters.
Ángel G. Sathicq   +5 more
wiley   +1 more source

Improving differential diagnosis of vocal cord dysfunction [PDF]

open access: yes, 2014
textPurpose: The purpose of this study was to assess whether the factors historically presented in the literature to differentiate vocal cord dysfunction (VCD) from breathing difficulties of other etiologies accurately predict and identify patients who ...
Bernstein, Sarah Mae
core  

Fabrication of Superinsulating Poly(Urethane‐Isocyanurate) Aerogels Derived from Upcycled Polycarbonate

open access: yesAdvanced Sustainable Systems, EarlyView.
Bisphenol‐A polycarbonate is upcycled via a simple one‐pot reaction into an aromatic Mannich polyol, which serves as a precursor for fabricating poly(urethane‐isocyanurate) (PUR‐PIR) aerogels. PUR‐PIR aerogels, prepared with different isocyanate indices, exhibit high porosities, high specific surface areas, ultralow thermal conductivity, and excellent ...
Ivona Glišić   +5 more
wiley   +1 more source

Treating and Managing Laryngopharyngeal Reflux Disease in the Over 65s: Evidence to Date

open access: yesClinical Interventions in Aging, 2022
Jerome R Lechien1– 3 1Polyclinic of Poitiers, Elsan Hospital, Poitiers, France; 2Department of Anatomy and Experimental Oncology, Mons School of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMons), Mons ...
Lechien JR
doaj  

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