Results 41 to 50 of about 14,895 (148)

Analysing detection of chronic diseases with prolonged sub-clinical periods: modelling and application to hypertension in the U.S.

BMC Medical Research Methodology, 2019
Background We recently introduced a system of partial differential equations (PDEs) to model the prevalence of chronic diseases with a possibly prolonged state of asymptomatic, undiagnosed disease preceding a diagnosis.
Ralph Brinks, Sophie Kaufmann, Annika Hoyer, Edward W Gregg, Jürgen Saal   +4 more
doaj   +1 more source

Platform-Dependent Entrepreneurship: A Systematic Review

Administrative Sciences
Digital platforms have facilitated the emergence of novel entrepreneurial opportunities that rely on a platform for market entry and access to resources.
Songping Yu, Tomoki Sekiguchi
doaj   +1 more source

Plasma Desmosine and Abdominal Aortic Aneurysm Disease

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background It is recognized that factors beyond aortic size are important in predicting outcome in abdominal aortic aneurysm (AAA) disease. AAA is characterized by the breakdown of elastin within the aortic tunica media, leading to aortic dilatation and ...
Ify R. Mordi, Rachael O. Forsythe, Corry Gellatly, Zaid Iskandar, Olivia M. McBride, Athanasios Saratzis, Rod Chalmers, Calvin Chin, Matthew J. Bown, David E. Newby, Chim C. Lang, Jeffrey T. J. Huang, Anna‐Maria Choy   +12 more
doaj   +1 more source

Pyridoxine dependent epilepsies: new therapeutical point of view

Italian Journal of Pediatrics, 2017
Pyridoxine dependent epilepsies (PDEs) are rare autosomal recessive disorders with onset in neonatal period. Seizures are typically not responsive to conventional antiepileptic drugs, but they cease after parental pyridoxine administration.
Raffaele Falsaperla, Giovanni Corsello
doaj   +1 more source

Rough stochastic PDEs

Communications on Pure and Applied Mathematics, 2011
In this article, we show how the theory of rough paths can be used to provide a notion of solution to a class of nonlinear stochastic PDEs of Burgers type that exhibit too high spatial roughness for classical analytical methods to apply. In fact, the class of SPDEs that we consider is genuinely ill-posed in the sense that different approximations to ...
openaire   +3 more sources

Solvable Nonlinear Evolution PDEs in Multidimensional Space

Symmetry, Integrability and Geometry: Methods and Applications, 2006
A class of solvable (systems of) nonlinear evolution PDEs in multidimensional space is discussed. We focus on a rotation-invariant system of PDEs of Schrödinger type and on a relativistically-invariant system of PDEs of Klein-Gordon type.
Francesco Calogero, Matteo Sommacal
doaj  

Novel Radioligands for Cyclic Nucleotide Phosphodiesterase Imaging with Positron Emission Tomography: An Update on Developments Since 2012

Molecules, 2016
Cyclic nucleotide phosphodiesterases (PDEs) are a class of intracellular enzymes that inactivate the secondary messenger molecules, cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP).
Susann Schröder, Barbara Wenzel, Winnie Deuther-Conrad, Matthias Scheunemann, Peter Brust   +4 more
doaj   +1 more source

Optimized technique and dynamical behaviors of fractional Lax and Caudrey–Dodd–Gibbon models modelized by the Caputo fractional derivative

Partial Differential Equations in Applied Mathematics
The presented paper aims to investigate, examine, and analyze the nonlinear time-fractional evolution partial differential equations (TFNE-PDEs) in the sense of Caputo essential in numerous nonlinear wave propagation phenomena.
Tareq Eriqat, Moa’ath N. Oqielat, Rania Saadeh, Ahmad El-Ajou, Ahmad Qazza, Mohammed Abu Saleem   +5 more
doaj   +1 more source

Numerical Contour Integral Methods for Free-Boundary Partial Differential Equations Arising in American Volatility Options Pricing

Discrete Dynamics in Nature and Society, 2018
The aim of this paper is to study the numerical contour integral methods (NCIMs) for solving free-boundary partial differential equations (PDEs) from American volatility options pricing. Firstly, the governing free-boundary PDEs are modified as a unified
Yong Chen, Jianjun Ma
doaj   +1 more source

Plant‐derived exosomes: A Green Nanomedicine for Cancer

Clinical and Translational Discovery
Exosomes are signalling molecules related to cell‐to‐cell communication. Based on sources (plants, stem cells, and immune cells derived exosomes) it offers promising therapeutic activity against cancer.
Swarup Sonar, Krishnan Anand
doaj   +1 more source