Results 71 to 80 of about 9,543 (234)

A design tool for globally developable discrete architectural surfaces using Ricci flow

open access: yesJapan Architectural Review, 2023
This paper presents an approach for the design of discrete architectural surfaces that are globally developable; that is, having zero Gaussian curvature at every interior node.
Jingyao Zhang, Makoto Ohsaki
doaj   +1 more source

Singular Ricci Solitons and Their Stability under the Ricci Flow [PDF]

open access: yesCommunications in Partial Differential Equations, 2015
58 ...
Alexakis, Spyros   +2 more
openaire   +2 more sources

What Is the Role of Personas in Environmental Sustainability Studies? A Systematic Review of 36 Research Articles

open access: yesSustainable Development, EarlyView.
ABSTRACT User personas are important tools for user understanding in human‐computer interaction (HCI), and understanding how personas contribute to environmental sustainability across research and practice contexts is increasingly important. Our systematic review of 36 articles on persona research in environmental sustainability reveals four key ...
Rajat Patil   +4 more
wiley   +1 more source

On the Topological Classification of Four-Dimensional Steady Gradient Ricci Solitons with Nonnegative Sectional Curvature

open access: yesMathematics
In this paper, we study the topology of steady gradient Ricci solitons with nonnegative sectional curvature. We apply a characterization theorem for the fundamental group of a positively curved steady gradient Ricci soliton that admits a critical point ...
Yuehan Hao
doaj   +1 more source

Ricci Flow and Volume Renormalizability [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2019
With respect to any special boundary defining function, a conformally compact asymptotically hyperbolic metric has an asymptotic expansion near its conformal infinity. If this expansion is even to a certain order and satisfies one extra condition, then it is possible to define its renormalized volume and show that it is independent of choices that ...
Bahuaud, E., Mazzeo, R., Woolgar, E.
openaire   +3 more sources

DNA‐Enzyme Hybrid Nanostructures: Functional Materials to Modulate Enzymatic Activity

open access: yesSmall, EarlyView.
DNA–enzyme hybrid nanostructures enable precise spatial and stoichiometric control over enzyme organization, offering a powerful platform to modulate catalytic activity. This review critically evaluates key mechanistic hypotheses, including proximity effects, microenvironment changes, confinement, and stabilization, as well as highlighting ...
Manar Elnaggar, Amelie Heuer‐Jungemann
wiley   +1 more source

POSITIVITY OF RICCI CURVATURE UNDER THE KÄHLER–RICCI FLOW [PDF]

open access: yesCommunications in Contemporary Mathematics, 2006
In each complex dimension n ≥ 2, we construct complete Kähler manifolds of bounded curvature and non-negative Ricci curvature whose Kähler–Ricci evolutions immediately acquire Ricci curvature of mixed sign.
openaire   +2 more sources

Policy Evaluation for Climate Mitigations in the European Agricultural Sector—A Comparison of Policy Options at Micro and Macro Level

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT The purpose of this paper is to discuss the micro‐ and macro‐outcomes for the standard neoclassical carbon tax (whose burden falls on the producers) versus the implication of a budget neutral, performance‐based EU Common Agricultural Policy (CAP) focusing on non‐CO2 emission (N2O and CH4, measured in CO2eq) reduction, especially in the ...
John Helming   +4 more
wiley   +1 more source

Optimising the Diagnosis of Sesame Seed Allergy With the Basophil Activation Test

open access: yesAllergy, EarlyView.
The basophil activation test (using the activation marker CD203c) was the only test able to both exclude and confirm sesame seed allergy with precision. A negative skin prick test to sesame extract or tahini and undetectable IgE to Ses i 1 could not rule out sesame seed allergy.
Ru‐Xin Foong   +16 more
wiley   +1 more source

A Spotlight on Yolk‐sac Tumors: Molecular Pathology, Current Diagnostics, and Novel Therapeutics

open access: yesAndrology, EarlyView.
ABSTRACT Background Yolk‐sac tumors are an aggressive subtype of testicular cancer that significantly contribute to disease progression and therapy resistance, especially in adults. While testicular cancer generally has high cure rates with cisplatin‐based treatment, adult yolk‐sac tumors often appear as components of mixed tumors with poor response to
Evangelos Prokakis   +3 more
wiley   +1 more source

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