Results 51 to 60 of about 1,190 (161)

Forest Loss Influences Biomass Distribution Across Trophic Groups of Amazonian Stream Insects

Freshwater Biology, Volume 71, Issue 2, February 2026.
ABSTRACT Changes in resource availability caused by deforestation can negatively impact freshwater ecosystems, with implications for trophic chains. We investigated both the direct and indirect effects of forest cover and allochthonous resource availability on the biomass distribution of larvae of aquatic insects (Ephemeroptera, Plecoptera, Trichoptera
Gabriel Martins Cruz, Josinete Sampaio Monteles, Joás Silva Brito, Bethânia Oliveira Resende, Neusa Hamada, Renato Tavares Martins, Francisco Valente‐Neto, Ana Paula Justino Faria, Leandro Juen   +8 more
wiley   +1 more source

A Geodesic Mixed Effects Model in Kendall’s Shape Space

, 2019
In many applications, geodesic hierarchical models are adequate for the study of temporal observations. We employ such a model derived for manifold-valued data to Kendall's shape space.
von Tycowicz, Christoph, Hans-Christian Hege, Nava-Yazdani, Esfandiar, Christoph von Tycowicz, Esfandiar Nava-Yazdani, Hege, Hans-Christian   +5 more
core   +2 more sources

Re‐evaluation of sucralose (E 955) as a food additive and evaluation of a new application on extension of use of sucralose (E 955) in fine bakery wares

EFSA Journal, Volume 24, Issue 2, February 2026.
Abstract The present opinion deals with the re‐evaluation of sucralose (E 955) as food additive and with the safety of a proposed extension of use in food category (FC) 7.2 ‘Fine bakery wares’. Based on the available data, no safety concerns arose for genotoxicity of sucralose (E 955) and its impurities and degradation products.
EFSA Panel on Food Additives and Flavourings (FAF), Laurence Castle, Monica Andreassen, Gabriele Aquilina, Maria Lourdes Bastos, Polly Boon, Biagio Fallico, Rex FitzGerald, Maria Jose Frutos Fernandez, Bettina Grasl‐Kraupp, Ursula Gundert‐Remy, Rainer Gürtler, Eric Houdeau, Marcin Kurek, Henriqueta Louro, Patricia Morales, Sabina Passamonti, Monika Batke, Antonios Douros, James Chipman, Riccardo Crebelli, Peter Fürst, Thorhallur Halldorsson, Manuela Mirat, Alicja Mortensen, Matthew Wright, Oliver Lindtner, Stefania Barmaz, Consuelo Civitella, Zsuzsanna Horvath, Sara Levorato, Elena Mazzoli, Josef Daniel Rasinger, Ana Maria Rincon, Camilla Smeraldi, Alexandra Tard, Federica Lodi   +36 more
wiley   +1 more source

Graph and Manifold Co-Regularization

, 2013
Classical foundations of Statistical Learning Theory rely on the assumption that the input patterns are independently and identically distributed. However, in many applications, the inputs, represented as feature vectors, are also embedded into a network
Saccà, Claudio, Gori, Marco, Diligenti, Michelangelo, Marco Gori, Claudio Sacca, Michelangelo Diligenti   +5 more
core   +1 more source

Point-set manifold processing for computational mechanics: thin shells, reduced order modeling, cell motility and molecular conformations [PDF]

, 2012
In many applications, one would like to perform calculations on smooth manifolds of dimension d embedded in a high-dimensional space of dimension D. Often, a continuous description of such manifold is not known, and instead it is sampled by a set of ...
Millán, Daniel
core   +1 more source

Pair of Associated η-Ricci–Bourguignon Almost Solitons with Generalized Conformal Killing Potential on Sasaki-like Almost Contact Complex Riemannian Manifolds

Mathematics
The subject of this study is almost contact complex Riemannian manifolds, also known as almost contact B-metric manifolds. The considerations are restricted to a special class of these manifolds, namely those of the Sasaki-like type, because of their ...
M. Manev
semanticscholar   +1 more source

A new class of almost complex structures on tangent bundle of a Riemannian manifold [PDF]

, 2018
summary:In this paper, the standard almost complex structure on the tangent bunle of a Riemannian manifold will be generalized. We will generalize the standard one to the new ones such that the induced $(0,2)$-tensor on the tangent bundle using these ...
Baghban, Amir, Abedi, Esmaeil
core   +1 more source

Regulatory network rewiring drives strain‐specific lipid accumulation response in Chlorella sorokiniana under nutrient starvation

The Plant Journal, Volume 125, Issue 1, January 2026.
SUMMARY Microalgae modulate lipid metabolism in response to nutrient stress, offering a promising avenue for sustainable biofuel production. However, a mechanistic understanding of the transcriptional programs driving triacylglycerol (TAG) accumulation remains limited, particularly in non‐model species.
Claudio C. Barrera‐Duarte, Ricardo A. Chávez Montes, Héctor‐Rogelio Nájera‐González, Damar Lopez‐Arredondo   +3 more
wiley   +1 more source

Curvature and Solitonic Structures of Para‐Sasakian Manifolds With Schouten–van Kampen Connection on the Tangent Bundle

Journal of Mathematics, Volume 2026, Issue 1, 2026.
This paper investigates the complete lift of para‐Sasakian structures to the tangent bundle equipped with the Schouten–van Kampen connection (SVKC). By analyzing curvature tensors and soliton equations, we establish the existence of Ricci, Yamabe, and η‐Ricci solitons in the lifted setting.
Lalnunenga Colney, Dalal Alhwikem, Teg Alam, Murat Altunbaş   +3 more
wiley   +1 more source

Intrinsic analysis of the statistical estimation [PDF]

, 1996
Preprint enviat per a la seva publicació en una revista científica: The Annals of Statistics, Volume 23, Number 5 (1995), 1562-1581. [https://projecteuclid.org/euclid.aos/1176324312]The parametric statistical models with suitable regularity conditions ...
Oller i Sala, Josep Maria, Corcuera Valverde, José Manuel   +1 more
core