Results 141 to 150 of about 235 (177)

Identification of Volatile Odor Compounds in Extracts of Four Types of Herbaceous Plant Spices via GC × GC–O‐TOF MS

eFood, Volume 7, Issue 4, August 2026.
In this study, sensory evaluation, electronic nose, solid‐phase microextraction, and comprehensive two‐dimensional gas chromatography‐olfactometry‐time‐of‐flight mass spectrometry were used to analyze the volatile compounds and key odor‐active components in the extracts of sour horn, alfalfa, chicory, and fenugreek, and a total of 59 odor‐active ...
Suxing Tuo, Qinghui Jia, Shuang Bi, Yixin Dai, Ting Deng, Hongbing Lu, Jiaxiao Cai, Zifeng Li, Cheng Yang, Kejun Zhong, Bo Kong, Ye Liu   +11 more
wiley   +1 more source

Spatial multi‐omics unveils sphingolipid metabolic reprogramming within the retinal pathological niche

iMeta, Volume 5, Issue 4, August 2026.
Spatial multi‐omics of the mouse ocular globe after retinal ischemia‐reperfusion (RIR) injury identifies the ganglion cell layer (GCL) as an immunometabolic niche where Trem2+ microglia closely associate with stressed retinal ganglion cells (RGCs) through Trem2‐Apoe signaling.
Yunhong Shi, Jinpei Lin, Yi Wu, Shengsong Xu, Naiyuan Zhang, Yiji Pan, Anli Ren, Ying Fang, Yu Huang, Xiayin Zhang, Zhuoting Zhu, Yehong Zhuo, Honghua Yu   +12 more
wiley   +1 more source

Large‐scale tests of 50‐year‐old prestressed concrete bridge girders

Structural Concrete, Volume 27, Issue 4, Page 6227-6245, August 2026.
Abstract An experimental investigation has been carried out as part of the BRIDGE|50 research project, focusing on large‐scale loading tests performed on five 50‐year‐old prestressed concrete (PC) girders. The study aimed at evaluating the structural response of five girders retrieved from a viaduct in the urban area of Turin, Italy, subjected to 4 ...
Francesco Tondolo, Pierclaudio Savino, Donato Sabia, Antonino Quattrone, Fabio Biondini, Gianpaolo Rosati, Mattia Anghileri, Bernardino Chiaia   +7 more
wiley   +1 more source

Numerically efficient mechanical modeling of reinforced concrete membrane elements with fixed, interlocked cracks

Structural Concrete, Volume 27, Issue 4, Page 6505-6522, August 2026.
Abstract Compression field approaches such as the Cracked Membrane Model with fixed, interlocked cracks (CMM‐F) are efficient tools for the mechanical modeling of reinforced concrete elements, providing the mechanical model σ=fε required for finite element analyses. This paper introduces a modification and extension of the CMM‐F that includes (i) dowel
Andreas Näsbom, Karel Thoma, Walter Kaufmann   +2 more
wiley   +1 more source

Pre‐failure behavior of continuous post‐tensioned and post‐grouted beam in case of tendon failure

Structural Concrete, Volume 27, Issue 4, Page 6582-6602, August 2026.
Abstract Grouted tendons are a common solution for long‐span bridge structures. The grout provides bond and corrosion protection for prestressing steel. However, if the grouting is defective, corrosion of the prestressing steel may initiate and eventually lead to tendon failure.
Olli Asp, Joonas Tulonen, Anssi Laaksonen   +2 more
wiley   +1 more source

Single‐Cell Virtual Perturbation Screening Identifies STAT3 as a Key Regulator of Dentinogenesis

Cell Proliferation, Volume 59, Issue 8, August 2026.
STAT3 promotes odontoblast differentiation in dental mesenchymal cells by transcriptionally regulating WNT2B via the canonical Wnt/β‐catenin signalling pathway. These findings elucidate a mechanism underlying dentine development. ABSTRACT Dentine formation constitutes a physiological process precisely regulated by signal transduction modules governing ...
Yanfei Zhu, Hongyuan Xu, Zijian Zhang, Siyuan Sun, Zihan Huang, Xin Gao, Houwen Pan, Xiangru Huang, Yuanqi Liu, Xinyu Wang, Hanbin Jia, Qinggang Dai, Lingyong Jiang   +12 more
wiley   +1 more source

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On the chordality of a graph

Journal of Graph Theory, 1993
AbstractThe chordality of a graph G = (V, E) is defined as the minimum k such that we can write E = E1 ∩ … ∩ Ek with each (V, Ei) a chordal graph. We present several results bounding the value of this generalization of boxicity. Our principal result is that the chordality of a graph is at most its tree width.
Terry A. McKee, Edward R. Scheinerman
openaire   +1 more source

Dually Chordal Graphs

SIAM Journal on Discrete Mathematics, 1994
The authors give a unified framework for characterizations of graphs which are dual (in the sense of hypergraphs) to chordal graphs, in terms of neighborhood and clique hypergraphs. By using the hypergraph approach in a systematical way, new results are obtained, a part of previous results are generalized, and some of the proofs are simplified.
Andreas Brandstädt, Feodor F. Dragan, Victor Chepoi, Vitaly I. Voloshin   +3 more
openaire   +2 more sources

On the Hyperbolicity of Chordal Graphs

Annals of Combinatorics, 2001
The hyperbolicity of a metric space is the infimum of all \(\delta\) for which \(d(x,y)+ d(u,v)\leq \max\{d(x, u)+ d(y,v), d(x,v)+ d(y,u)\}+ \delta\) for all elements \(x\), \(y\), \(u\), \(v\) from the space. The notion can be viewed as expressing how `tree like' the space is, as spaces with hyperbolicity \(0\) are precisely the metric trees.
Brinkmann, Gunnar, Koolen, Jack H., Moulton, V.   +2 more
openaire   +2 more sources

A generalization of chordal graphs

Journal of Graph Theory, 1984
AbstractIn a 3‐connected planar triangulation, every circuit of length ≥ 4 divides the rest of the edges into two nontrivial parts (inside and outside) which are “separated” by the circuit. Neil Robertson asked to what extent triangulations are characterized by this property, and conjectured an answer.
Paul D. Seymour, R. W. Weaver
openaire   +1 more source