Results 61 to 70 of about 1,595 (144)

The Revo‐Evo Debate in the History and Philosophy of Science

Natural Sciences, Volume 6, Issue 3, July 2026.
The paper juxtaposes revolutionary and evolutionary positions in epistemology in general as well as the history of science. While it deems the evolutionary arguments more persuasive, it also stresses the dependence of our assessment of change on the language we choose to describe the theories and positions under consideration.
Yemima Ben‐Menahem
wiley   +1 more source

Approximate Ricci‐Flat Metrics for Calabi–Yau Manifolds

Fortschritte der Physik, Volume 74, Issue 7, July 2026.
ABSTRACT We outline a method to determine analytic Kähler potentials with associated approximately Ricci‐flat Kähler metrics on Calabi–Yau manifolds. Key ingredients are numerically calculating Ricci‐flat Kähler potentials via machine learning techniques and fitting the numerical results to Donaldson's ansatz.
Seung‐Joo Lee, Andre Lukas
wiley   +1 more source

Hybrid Fractionation of Cowpea: Combining Dry and Wet Routes to Produce Versatile Protein Ingredients

Journal of Food Science, Volume 91, Issue 7, July 2026.
ABSTRACT Cowpea (Vigna unguiculata L.) is an underutilized protein‐rich pulse with strong potential to diversify the alternative protein market, particularly through sustainable fractionation strategies. However, comparative insights into how dry and hybrid routes influence protein structure, functionality, and nutritional quality within the same ...
Renata Fialho Teixeira, Clóvis Antônio Balbinot Filho, Jaíne Oliveira, Graziele Grossi Bovi Karatay, Cristiana Ambiel, Acácio Antonio Ferreira Zielinski   +5 more
wiley   +1 more source

k-Almost Newton-Conformal Ricci Solitons on Hypersurfaces Within Golden Riemannian Manifolds with Constant Golden Sectional Curvature

Axioms
The current work establishes the geometrical bearing for hypersurfaces in a Golden Riemannian manifold with constant golden sectional curvature with respect to k-almost Newton-conformal Ricci solitons.
Amit Kumar Rai, Majid Ali Choudhary, Mohd. Danish Siddiqi, Ghodratallah Fasihi-Ramandi, Uday Chand De, Ion Mihai   +5 more
doaj   +1 more source

Spectral Pattern of Chocolate Production: Early Detection of Quality Problems

Journal of Food Science, Volume 91, Issue 7, July 2026.
ABSTRACT Quality defects in chocolate can be classified as physicochemical quality problems and structural instability (blooming). Both problems can be detected after production and generally take time to become visible. Therefore, early detection tools are necessary to prevent economic losses in the food industry. In this study, FTIR spectra collected
Yağmur Küçükduman, İkra Doğa Korkmaz, Hüseyin Güray Çiftçi, Gökhan İpkin, Sinem Argün, Zeynep Pınar Kara, Gonca Bilge Özel, Özge Taştan Ülkü, Ömer Said Toker, Zeynep Mutlu   +9 more
wiley   +1 more source

Simple normal crossing Kähler–Einstein metrics and RCD spaces

Bulletin of the London Mathematical Society, Volume 58, Issue 7, July 2026.
Abstract We show that Kähler–Einstein metrics with cone singularities along simple normal crossing (SNC) divisors define Riemannian Curvature Dimension (RCD) spaces, both in the compact setting and in certain non‐compact cases, thereby producing many examples of Einstein RCD spaces. In particular, we show the existence of smooth non‐compact 4‐manifolds
Martin de Borbon, Cristiano Spotti
wiley   +1 more source

Some Geometric Properties of Lorentzian $\beta$-Kenmotsu Manifolds Admitting $\eta$-Ricci-Yamabe Solitons

Communications in Advanced Mathematical Sciences
In this paper, we investigate the characterization of Lorentzian $\beta $-Kenmotsu manifolds admitting $\eta$-Ricci-Yamabe solitons. First, we examine the cases where such manifolds are Ricci pseudosymmetric and Ricci semisymmetric.
Mehmet Atçeken, Tuğba Mert
doaj   +1 more source

Affine hypersurfaces and superintegrable systems

Journal of the London Mathematical Society, Volume 114, Issue 1, July 2026.
Abstract It was recently shown that under mild assumptions, second‐order conformally superintegrable systems can be encoded in a (0,3)‐tensor, called structure tensor. For abundant systems, this approach led to algebraic integrability conditions that essentially allow one to restore a system from the knowledge of its structure tensor in a point on the ...
Vicente Cortés, Andreas Vollmer
wiley   +1 more source

On the Ricci Curvature of Normal-Metric Contact Pair Manifolds

Journal of New Theory, 2021
In this study, we work on normal-metric contact pair manifolds under certain conditions related to the Ricci curvature. We obtain some results for generalized quasi-Einstein normal-metric contact pair manifolds.
Ramazan Sarı, İnan Ünal
doaj  

Closed time-like curves in f(R,A) modified gravity theory

Nuclear Physics B
In this manuscript, we investigate solutions that allow closed time-like curves (CTCs) in general relativity (GR) within the framework of a modified gravity theory. We consider here an alternative theory recently proposed in gravity theories known as f(R,
F. Ahmed, J.C.R. de Souza, A.F. Santos
doaj   +1 more source