2,383 results match your criteria: "Mathematical Institute[Affiliation]"
Math Biosci
October 2023
Wolfson Centre for Mathematical Biology, Mathematical Institute, University of Oxford, Andrew Wiles Building, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, United Kingdom. Electronic address:
Throughout developmental biology and ecology, transport can be driven by nonlocal interactions. Examples include cells that migrate based on contact with pseudopodia extended from other cells, and animals that move based on their awareness of other animals. Nonlocal integro-PDE models have been used to investigate contact attraction and repulsion in cell populations in 1D.
View Article and Find Full Text PDFJ Orthop Surg Res
November 2024
Department of Orthopedic Surgery and Sports Medicine, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Amsterdam, the Netherlands.
Background: Children and young adults needing surgery for a primary malignant bone tumour around the knee face a difficult, life-changing decision. A previous study showed that this population wants to be involved more in the decision-making process and that more involvement leads to less decisional stress and regret. Therefore, a well-designed and standardized decision-making process based on the principles of shared decision-making needs to be designed, implemented, and evaluated.
View Article and Find Full Text PDFPhys Rev Lett
October 2024
Mathematical Institute, University of Oxford, Woodstock Road, Oxford, OX2 6GG, United Kingdom.
We propose a unified framework to classify gapped infrared phases with categorical symmetries, leading to a generalized, categorical Landau paradigm. This is applicable in any dimension and gives a succinct, comprehensive, and computationally powerful approach to classifying gapped symmetric phases. The key tool is the symmetry topological field theory, which is a one dimension higher topological field theory with two boundaries that we choose to be topological.
View Article and Find Full Text PDFJ R Soc Interface
October 2024
Usher Institute, Edinburgh Medical School, The University of Edinburgh, Edinburgh, UK.
Cancers (Basel)
October 2024
Department of Orthopedic Surgery, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
Due to the relatively advanced age and high mortality rate of patients with high-grade chondrosarcoma (CS), it is important to holistically assess patient- and tumor characteristics in multidisciplinary team and shared decision-making with regard to treatment options. While current prognostic models include multiple tumor and treatment characteristics, the only patient characteristics that are commonly included are age and gender. Based on clinical experience, we believe that factors related to patient preoperative systemic health status such as the American Society of Anesthesiologists (ASA) score may be equally important prognostic factors for overall survival (OS).
View Article and Find Full Text PDFSurrogate optimisation holds a big promise for building energy optimisation studies due to its goal to replace the use of lengthy building energy simulations within an optimisation step with expendable local surrogate models that can quickly predict simulation results. To be useful for such purpose, it should be possible to quickly train precise surrogate models from a small number of simulation results (10-100) obtained from appropriately sampled points in the desired part of the design space. Two sampling methods and two machine learning models are compared here.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
October 2024
Mathematical Department, University of Lille, Villeneuve d'Ascq Cedex 59655, France.
We consider certain convolution sums that are the subject of a conjecture by Chester, Green, Pufu, Wang, and Wen in string theory. We prove a generalized form of their conjecture, explicitly evaluating absolutely convergent sums [Formula: see text]where [Formula: see text] is a Laurent polynomial with logarithms. Contrary to original expectations, such convolution sums, suitably extended to [Formula: see text], do not vanish, but instead, they carry number theoretic meaning in the form of Fourier coefficients of holomorphic cusp forms.
View Article and Find Full Text PDFClin Nutr
December 2024
Laboratory of Behavioral Gastronomy, Centre for Healthy Eating and Food Innovation, Maastricht University Campus Venlo, PO Box 8, 5900 AA, Venlo, the Netherlands.
Background & Aims: Smell and taste changes are frequently reported bothersome treatment symptoms during treatment for childhood cancer and assumed to influence outcomes such as food intake. Since nutritional status of children with cancer is already vulnerable, any detrimental effects on food intake should be prevented. Therefore, understanding the exact relationship between chemosensory changes and dietary intake, eating behavior, and other domains such as health-related quality of life (HRQoL), is important for improving outcomes.
View Article and Find Full Text PDFActa Appl Math
October 2024
Department of Applied Mathematics, University of Washington, Seattle, WA 98195 USA.
The multispecies Landau collision operator describes the two-particle, small scattering angle or grazing collisions in a plasma made up of different species of particles such as electrons and ions. Recently, a structure preserving deterministic particle method (Carrillo et al. in J.
View Article and Find Full Text PDFBMC Bioinformatics
October 2024
Department of Electrical and Computer Engineering, University of Delaware, Newark, 19716, USA.
Background: Stochastic modelling plays a crucial role in comprehending the dynamics of intracellular events in various biochemical systems, including gene-expression models. Cell-to-cell variability arises from the stochasticity or noise in the levels of gene products such as messenger RNA (mRNA) and protein. The sources of noise can stem from different factors, including structural elements.
View Article and Find Full Text PDFPhys Rev E
September 2024
Mathematical Institute, University of Oxford, Woodstock Road, Oxford OX2 6GG, United Kingdom.
The structure of a complex network plays a crucial role in determining its dynamical properties. In this paper , we show that the the degree to which a network is directed and hierarchically organized is closely associated with the degree to which its dynamics break detailed balance and produce entropy. We consider a range of dynamical processes and show how different directed network features affect their entropy production rate.
View Article and Find Full Text PDFPhys Rev Lett
October 2024
Mathematical Institute, University of Oxford, Woodstock Road, Oxford OX2 6GG, United Kingdom.
We derive a general formula for the gravitational free energy of Euclidean supersymmetric solutions to D=4, N=2 gauged supergravity coupled to vector multiplet matter. This allows one to compute the free energy without solving any supergravity equations, just assuming the solutions exist. As well as recovering some known results in the literature with ease, we also present new supergravity results that match with holographically dual field theory computations.
View Article and Find Full Text PDFBMC Med Res Methodol
October 2024
Mathematical Institute, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
Background: In group-sequential designs, it is typically assumed that there is no time gap between patient enrollment and outcome measurement in clinical trials. However, in practice, there is usually a lag between the two time points. This can affect the statistical analysis of the data, especially in trials with interim analyses.
View Article and Find Full Text PDFInvest Ophthalmol Vis Sci
October 2024
Pharmaceutical Sciences, Roche Innovation Center Basel, Roche Pharma Research and Early Development, Basel, Switzerland.
Purpose: Standard of care for various retinal diseases involves recurrent intravitreal injections. This motivates mathematical modeling efforts to identify influential factors for ocular drug residence time, aiming to minimize administration frequency. We sought to describe the vitreal diffusion of therapeutics in nonclinical species frequently used during drug development assessments.
View Article and Find Full Text PDFDiagnostics (Basel)
September 2024
Department of Mathematics and Computer Science, St. Petersburg State University, 199034 St. Petersburg, Russia.
Despite the achievements of modern medicine, tuberculosis remains one of the leading causes of mortality globally. The difficulties in differential diagnosis have particular relevance in the case of suspicion of tuberculosis with other granulomatous diseases. The most similar clinical and radiologic changes are sarcoidosis.
View Article and Find Full Text PDFNonlinear Dyn
August 2024
Department of Mathematics, University of Vienna, Vienna, Austria.
In this paper we study bifurcations in mass-action networks with two chemical species and reactant complexes of molecularity no more than two. We refer to these as planar, quadratic networks as they give rise to (at most) quadratic differential equations on the nonnegative quadrant of the plane. Our aim is to study bifurcations in networks in this class with the fewest possible reactions, and the lowest possible product molecularity.
View Article and Find Full Text PDFMath Ann
March 2024
Mathematical Institute, University of Oxford, Andrew Wiles Building, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG UK.
We prove that twisted -Betti numbers of locally indicable groups are equal to the usual -Betti numbers rescaled by the dimension of the twisting representation; this answers a question of Lück for this class of groups. It also leads to two formulae: given a fibration with base space having locally indicable fundamental group, and with a simply-connected fiber , the first formula bounds -Betti numbers of in terms of -Betti numbers of and usual Betti numbers of ; the second formula computes exactly in terms of the same data, provided that is a high-dimensional sphere. We also present an inequality between twisted Alexander and Thurston norms for free-by-cyclic groups and 3-manifolds.
View Article and Find Full Text PDFNPJ Regen Med
September 2024
Mathematical Institute, University of Oxford, Oxford, UK.
Currently liver transplantation is the only treatment option for liver disease, but organ availability cannot meet patient demand. Alternative regenerative therapies, including cell transplantation, aim to modulate the injured microenvironment from inflammation and scarring towards regeneration. The complexity of the liver injury response makes it challenging to identify suitable therapeutic targets when relying on experimental approaches alone.
View Article and Find Full Text PDFPLoS Pathog
September 2024
German Centre for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany.
PLoS Comput Biol
September 2024
Department of Mathematics, University of California, Riverside, California, United States of America.
Math Ann
January 2024
Mathematical Institute, University of Oxford, Radcliffe Observatory, Andrew Wiles Building, Woodstock Rd, Oxford, OX26GG UK.
Let be either a free group or the fundamental group of a closed hyperbolic surface. We show that if is a finitely generated residually- group with the same pro- completion as , then two-generated subgroups of are free. This generalises (and gives a new proof of) the analogous result of Baumslag for parafree groups.
View Article and Find Full Text PDFEntropy (Basel)
September 2024
Department of Mathematical Methods for Quantum Technologies & Steklov International Mathematical Center, Steklov Mathematical Institute of Russian Academy of Sciences, 8 Gubkina Str., 119991 Moscow, Russia.
In the published article [...
View Article and Find Full Text PDFAm J Obstet Gynecol
February 2025
Department of Pediatric Oncology and Hematology, Hannover, Germany; RESIST Cluster of Excellence, Hannover, Germany; Biomedical Research in End-stage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), Hannover, Germany.
Biol Imaging
May 2024
Department of Mathematics, University of Texas at Austin, Austin, TX, USA.
Proc Natl Acad Sci U S A
September 2024
Machine Learning Group, National research institute for mathematics and computer science in the Netherlands (Centrum Wiskunde & Informatica), Amsterdam 1098 XG, The Netherlands.
A standard practice in statistical hypothesis testing is to mention the -value alongside the accept/reject decision. We show the advantages of mentioning an e-value instead. With -values, it is not clear how to use an extreme observation (e.
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