Results 21 to 30 of about 2,312,921 (342)

Pyridoacridines in the 21st Century [PDF]

open access: yesEuropean Journal of Organic Chemistry, 2019
This minireview summarizes the work developed during this century with compounds containing the pyridoacridine scaffold in its different isomeric forms. The isolation of natural products, syntheses, bioactivities, chelation capacity, and other properties of compounds containing this framework are discussed.
John A. Joule, Mercedes Álvarez
openaire   +3 more sources

A Phase II Trial of SABR (Stereotactic Ablative Body Radiotherapy) for Low-Risk Prostate Cancer Using a Non-Robotic Linear Accelerator and Real-Time Target Tracking: Report of Toxicity, Quality of Life and Disease Control Outcomes with 5-Year Minimum Followup

open access: yesFrontiers in Oncology, 2014
Purpose/Objective(s): Herein, we report the results of an IRB-approved phase II trial of Varian Trilogy/TrueBeam-based SABR monotherapy for low-risk prostate cancer using the Calypso® System to provide real-time electromagnetic tracking of the prostate ...
Constantine Anastasios Mantz
doaj   +1 more source

Response to Abemaciclib After 10 Lines of Therapy Including Palbociclib in Metastatic Breast Cancer: A Case Report With Literature Review

open access: yesOncology and Therapy, 2020
Metastatic breast cancer (BC) is considered incurable, and it is generally treated with sequential single-agent therapies to control it with palliative intent. Cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) are used in the front-line setting of hormone
Isabella O. Wender   +2 more
doaj   +1 more source

Mapping global urban land for the 21st century with data-driven simulations and Shared Socioeconomic Pathways

open access: yesNature Communications, 2020
Urban land expansion is one of the most visible, irreversible, and rapid types of land cover/land use change in contemporary human history, and is a key driver for many environmental and societal changes across scales. Yet spatial projections of how much
Jing Gao, B. O’Neill
semanticscholar   +1 more source

Accelerators in the 21st Century [PDF]

open access: yesEPJ Web of Conferences, 2018
More than 30,000 accelerators are in operation worldwide. Of these less than 1% are devoted to basic research. Prominent among the latter are high-energy particle colliders - powerful engines of discovery and precision measurement, which have played an essential role in establishing the standard model of particle physics.
openaire   +3 more sources

The effect of polyethylene polyimine on the dispersion of aluminum powder in silicone enamel [PDF]

open access: yesE3S Web of Conferences
This article presents the results of a study that showed that the addition of polyethylene polyimine to industrial silicone enamel KO-814 improves the dispersion of aluminum pigment and the quality of coatings. The study showed that the maximum effect is
Kryuchkov V.
doaj   +1 more source

The TripleSat constellation: a new geospatial data service model

open access: yesGeo-spatial Information Science, 2017
With the increase of different sensors, applications and customers, the demand from data providers and users is for a new geospatial data service model, which supports low cost, high dexterity, and which would provide a comprehensive service.
Qiang Wen   +9 more
doaj   +1 more source

Virology in the 21st Century [PDF]

open access: yesMicrobe Magazine, 2009
The editors of the Journal of Virology are in a privileged position to observe our field grow and develop. While the rational prediction of things to come is based on extrapolation of what we know now, we cannot anticipate the surprises that result from the serendipity of research.
openaire   +3 more sources

Epidemiology of Atrial Fibrillation in the 21st Century

open access: yesCirculation Research, 2020
Supplemental Digital Content is available in the text. Accompanying the aging of populations worldwide, and increased survival with chronic diseases, the incidence and prevalence of atrial fibrillation (AF) are rising, justifying the term global epidemic.
J. Kornej   +3 more
semanticscholar   +1 more source

Determinants of 21st-Century Skills and 21st-Century Digital Skills for Workers: A Systematic Literature Review

open access: yesSAGE Open, 2020
This study brings attention to the determinants of 21st-century skills and 21st-century digital skills. The following skills are investigated: technical, information, communication, collaboration, critical thinking, creativity, and problem-solving skills.
Ester van Laar   +3 more
semanticscholar   +1 more source

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