Results 111 to 120 of about 11,014,330 (212)

On the Convergence of Ritz Values, Ritz Vectors, and Refined Ritz Vectors\symbolmark

, 1999
This paper concerns the Rayleigh--Ritz method for computing an approximation to an eigenpair $(\lambda, x)$ of a non-Hermitian matrix $A$. Given a subspace $\clw$ that contains an approximation to $x$, this method returns an approximation $(\mu, \tilde
Stewart, G. W., Jai, Zhongxiao
core   +1 more source

First Evidence for Ozonido‐TMC Complexes of Iron and Cobalt

Angewandte Chemie International Edition, Volume 65, Issue 37, 7 September 2026.
Reaction of ozone with iron(II) complexes [(TMC)Fe(OTf)]BArF, [(D12‐TMC)Fe(OTf)]BArF, and cobalt(II) complexes [(TMC)Co(OTf)]BArF, [(D12‐TMC)Co(X)]BArF (X = OTf, F) gives ozonido and oxido complexes at temperatures as low as –155°C in a 4:1 mixture of 2‐Me‐THF and THF. ABSTRACT We present compelling evidence for the first Fe‐ and Co‐ozonido complexes: [
Stefan Schaub, Dennis Gerbig, Raffael C. Wende, Heike Hausmann, Jonathan Becker, Christian Würtele, Laura Senft, Ina Kellner, Gunasekaran Velmurugan, Marion Kerscher, Ivana Ivanović‐Burmazović, Peter Comba, Joshua Telser, Peter R. Schreiner, Siegfried Schindler   +14 more
wiley   +1 more source

Repenser la précarité. Dialogue avec Mahaut Ritz

Dans cet épisode Radio Marc Bloch donne la parole à Mahaut Ritz, docteur en philosophie et chercheuse associée au Centre Marc Bloch à l’occasion de la publication en janvier 2025 de son livre issu de sa thèse de doctorat : Repenser la précarité : de la ...
Tomasella, Claire, Ritz, Mahaut
core   +2 more sources

Error Estimates for Approximate Optimization by the Extended Ritz Method

, 2005
An alternative to the classical Ritz method for approximate optimization is investigated. In the extended Ritz method, sets of admissible solutions are approximated by their intersections with sets of linear combinations of all n-tuples of functions ...
SANGUINETI, MARCELLO, Marcello Sanguineti, Vera Kurková, V. KURKOVA   +3 more
core   +1 more source

Can soil detoxifiers mitigate crop injury from residual herbicides?

Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Sugarbeet (Beta vulgaris L.) growers have limited herbicide options for in‐crop application, so they rely on weed control in rotational crops to minimize weed problems. Sugarbeet is sensitive to many herbicides used in corn (Zea mays L.), a common rotational crop, which effectively reduces weed control options elsewhere in the rotation ...
Andrew R. Kniss, Jenna Meeks
wiley   +1 more source

Intraskeletal Variation in Cortical Bone Quantity in a Medieval Italian Sample: A Multivariate Exploratory Approach

American Journal of Biological Anthropology, Volume 191, Issue 1, September 2026.
ABSTRACT Bioarcheologists interpret skeletal health by examining variability within and between individuals. Studies of bone loss have generated contradictory and conflicting results regarding the onset and severity of age‐related bone loss on a global and temporal scale, perhaps due to mismatched methodologies. Intraskeletal comparisons of bone tissue
Katherine M. Kinkopf, Trent M. Trombley, Jeffrey A. Seckinger, Sabrina C. Agarwal, Valentina Giuffra, Simona Minozzi, Stefano Campana, Giulia Riccomi   +7 more
wiley   +1 more source

Association Between BMI and Tumour Regression After Neoadjuvant Therapy in Oesophageal Cancers: Insights From a German Nationwide Registry

Cancer Medicine, Volume 15, Issue 9, September 2026.
ABSTRACT Background For locally advanced oesophageal carcinoma, multimodal therapy is the standard of care, but prognosis remains poor. Obesity has risen markedly in the last decades. The impact of obesity on response to neoadjuvant treatment remains unclear.
Susanne D. Otto, Ioannis Pozios, Wael Rayya, Christian H. W. Schineis, Swantje Malinka, Rahel M. Strobel, Jonas Staudacher, Christoph Treese, Tim Vilz, Pia Jäger   +9 more
wiley   +1 more source

Generalized Beam Theory and Ritz method for Buckling analysis of Thin‐Walled Composite Beams with Unsymmetric Layups

ce/papers, Volume 9, Issue 2-3, Page 791-796, September 2026.
Abstract This paper proposes a shear‐deformable Generalized Beam Theory (GBT)–Ritz formulation for efficient buckling analysis of thin‐walled composite beams with unsymmetric layups, where extension–bending–twist coupling renders classical beam models inadequate. GBT is used to generate physically interpretable cross‐sectional deformation modes (global,
Navid Kharghani, Christian Mittelstedt
wiley   +1 more source

On the Convergence of Ritz Values, Ritz Vectors, and Refined Ritz Vectors

, 1999
This paper concerns the Rayleigh--Ritz method for computing an approximation to an eigenpair (; x) of a non-Hermitian matrix A. Given a subspace W that contains an approximation to x, this method returns an approximation (; ~ x) to (; x).
Zhongxiao Jia, G. W. Stewart
core  

Estimates of Critical Upper Maxima (CTmax) of Kelp Species Are Strongly Influenced by Biogeography and Thermal History

Ecology and Evolution, Volume 16, Issue 9, September 2026.
Experimentally derived critical thermal maxima (CTmax) are widely used to estimate species' thermal tolerance and increasingly to predict vulnerability to chronic warming. However, evidence shows how CTmax is dynamic and can be strongly influenced by multiple environmental and methodological factors, potentially limiting its application as a fixed ...
Tayla Leathers, Nathan G. King, Dan A. Smale   +2 more
wiley   +1 more source