Results 51 to 60 of about 17,993 (204)

Synthesis and characteristics of novel 2-hydroxy-3-mercaptopropyl terminated polyoxypropylene glyceryl ether as an epoxy hardener of epoxy-based adhesives

Polymer Testing, 2022
Two epoxy hardeners with different molecular weights of 2-hydroxy-3-mercaptopropyl terminated polypropylene glyceryl ether (HMP-t-PGE) were synthesized as crosslinkers of bisphenol-A epoxy resin via the thiol-epoxy click reaction.
Seung-Mo Hong, Seok-Ho Hwang
doaj   +1 more source

UMA INTRODUÇÃO AO SIGNO CARTOGRÁFICO DOS MAPAS DE PREVISÃO DE TEMPO NA SEMIÓTICA PEIRCEANA

Revista Brasileira de Cartografia, 2016
O objetivo deste artigo é contextualizar o signo cartográfico na perspectiva semiótica peirceana. Para tanto, buscou-se caracterizar o signo dos mapas tendo em vista a estrutura triádica do signo em Charles Sanders Peirce, seus níveis de complexidade e ...
Estevão Pastori Garbin, Fernando Luiz de Paula Santil   +1 more
doaj  

Correlation between Metabolite of Prostaglandin E2 and the incidence of colorectal adenomas

Frontiers in Oncology, 2023
Colorectal cancer is a common malignancy, and the incidence and mortality rates continue to rise. An important factor in the emergence of inflammation-induced colorectal carcinogenesis is elevated cyclooxygenase-2. Prostaglandin E2 (PGE2) over-production
Jia Jiang, Anjie Li, Xiaolian Lai, Hanqun Zhang, Chonghong Wang, Huimin Wang, Libo Li, Yuncong Liu, Lu Xie, Can Yang, Cui Zhang, Shuoyan Lu, Yong Li   +12 more
doaj   +1 more source

Longitudinal 1H and 129Xe Lung MRI in Patients With Post‐COVID Residual Lung Abnormalities

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background It is unclear how lung function may recover in patients with residual lung abnormalities (RLAs) following COVID‐19 pneumonia. Purpose To evaluate lung function trends over time in patients with RLAs following hospitalization due to COVID‐19. Study Type Prospective, multicenter longitudinal cohort study.
Laura C. Saunders, Guilhem J. Collier, Laurie J. Smith, Ho‐Fung Chan, Paul J. C. Hughes, Scarlett Strickland, Lotta Gustafsson, Thomas Newman, Megan Plowright, Zoë Gabriel, Lily M. Pearce, James T. Grist, Kher Lik Ng, Arthur Harrison, Charlotte E. Bolton, Jody Bray, Helen Marshall, Graham Norquay, Alberto M. Biancardi, Jimmy E. Ball, Neil J. Stewart, Kevin M. Johnson, Andrew J. Swift, Smitha Rajaram, John Blaikley, Stefan Stanel, Paul J. Collini, Gary H. Mills, Rod Lawson, Jonathan Brooke, Amanda T. Goodwin, Iain D. Stewart, Ling‐Pei Ho, Joseph Jacob, Thomas Meersmann, Galina E. Pavlovskaya, Fergus Gleeson, Ian P. Hall, Gisli Jenkins, Jim M. Wild, A. A. Roger Thompson, on behalf of the UK‐ILD consortium   +41 more
wiley   +1 more source

Trace element composition of troilite, iron and iron-nickel metall from meteorite Chelyabinsk

Литосфера, 2015
We studied the contents of trace elements in troilite, iron and in iron-nickel metal from meteorite Chelyabinsk by means of LA-ICP-MS. The features of the distribution of siderophile and chalcophile elements in sulfide and metallic phase in gray and ...
S. Yu. Stepanov, S. V. Berzin
doaj  

Activity of the cyclooxygenase 2-prostaglandin-E prostanoid receptor pathway in mice exposed to house dust mite aeroallergens, and impact of exogenous prostaglandin E₂

Journal of Inflammation, 2009
Background Prostaglandin E2 (PGE2), experimentally administered to asthma patients or assayed in murine models, improves allergen-driven airway inflammation.
Marco Alberto, Serra Mariona, Torres Rosa, Herrerias Aida, Pujols Laura, Picado César, de Mora Fernando   +6 more
doaj   +1 more source

Using synthetic models to understand the detecting ability of ground‐penetrating radar for water‐conducting structures in the bedrock of formerly glaciated site

Near Surface Geophysics, EarlyView.
Abstract Utilizing synthetic models for the interpretation of ground‐penetrating radar (GPR) profiles can aid in the detection of hydrogeological structures by identifying their signatures. In this study, finite difference (FD) forward modelling was used to understand the detection ability of 50 MHz GPR for (1) the quaternary deposit–bedrock contact ...
Annika Katarina Åberg, Salla Eeva, Emilia Koivisto, Susanne Charlotta Åberg, Seija Kultti, Kirsti Korkka‐Niemi   +5 more
wiley   +1 more source

Research progress on COX-2/PGE₂/EP₄ signaling axis in colon cancer

Zhongguo linchuang yanjiu, 2023
The expression of cyclooxygenase 2 (COX-2) was up-regulated and prostaglandin E2 (PGE2) was significantly increased in colon cancer patients. As the main prostaglandin produced by COX-2, PGE2 plays an important role in angiogenesis, survival, invasion ...
ZHENG Lirong, DU Haoyang, ZHANG Ruifen, ZHANG Hairong, BAO Aruhan, YU Lei, CUI Hongwei   +6 more
doaj   +1 more source

Intraoperative Cardiac Events During Pediatric Cardiac Magnetic Resonance Imaging Under Anesthesia: A Retrospective Cohort Study

Pediatric Anesthesia, EarlyView.
ABSTRACT Background Children with congenital heart disease (CHD) frequently undergo cardiac magnetic resonance imaging (MRI) under anesthesia. Although these procedures lack surgical stimulus, patients remain physiologically vulnerable, and the incidence of perioperative cardiovascular instability in this setting is poorly defined.
Theodora Wingert, Justine Liang, Kelly Feldman, Amelie Delaporte, Christine Nguyen‐Buckley, Tristan Grogan, Alexandre Joosten, John Paul Finn, Ihab Ayad   +8 more
wiley   +1 more source

Women's Empowerment, Governance, and the Economics of Clean Cooking Transitions in Africa

Sustainable Development, EarlyView.
ABSTRACT Over the past few decades, the global economy, particularly in developing nations, has persistently grappled with rising dependence on conventional energy resources, thus rendering the realization of Sustainable Development Goals 5 and 7 (SDGs 5 and 7) an elusive aspiration for the international community.
Stephen Kelechi Dimnwobi, Olufemi Gbenga Onatunji, Simplice A. Asongu   +2 more
wiley   +1 more source