Results 81 to 90 of about 2,971,508 (208)

On spectrum of corona product of duplication signed graph and its application [PDF]

This paper introduces the concept of $\mu$-signed and duplication signed graphs and shows that both are always structurally balanced. Using the duplication signed graph, we define the corona product of the duplication signed graph (Duplication add vertex
Sonar, Bishal, Guragain, Satyam, Srivastava, Ravi   +2 more
core  

A New Implementation of Network GARCH Model for Stock Volatility and Co‐Volatility Forecasting

Journal of Forecasting, EarlyView.
ABSTRACT Volatility clustering and spillovers are key features of financial time series with many cross‐sectional assets. While network analysis links similar or correlated stocks and helps trace volatility spillovers, contemporary multivariate ARCH‐GARCH formulations struggle to represent structured network dependence and remain parsimonious.
Peiyi Zhou
wiley   +1 more source

Catalan Bounds for Symmetric Strength‐Two Orthogonal Arrays

Journal of Combinatorial Designs, EarlyView.
ABSTRACT A Hamming shell construction is a two‐level array obtained by taking every binary vector of a given Hamming weight a prescribed number of times, for each weight in turn. Such arrays are invariant under all permutations of the factors, and they are strength‐two orthogonal arrays exactly when the multiplicities satisfy three linear constraints ...
Ruwan C. Karunanayaka
wiley   +1 more source

Explicit 3‐colorings for Exponential Graphs

Journal of Graph Theory, EarlyView.
ABSTRACT In 1985, El‐Zahar and Sauer showed that the chromatic number of the direct product of two 4‐chromatic graphs is 4, establishing a nontrivial case of Hedetniemi's conjecture, which has since been refuted in general. Their proof uses the concept of an exponential graph, showing that if a graph H $H$ has no proper 3‐coloring, then the exponential
Adrien Argento, Pierre Charbit, Alantha Newman   +2 more
wiley   +1 more source

Characterizations of Consistent Marked Graphs

, 1999
A marked graph is a graph with a + or - sign on each vertex and is called consistent if each cycle has an even number of - signs. This concept is motivated by problems of communication networks and social networks.
Shaoji Xu, Fred S. Roberts
core  

Dasatinib and quercetin prevent alveolar bone loss in aged mice

Journal of Periodontology, EarlyView.
Abstract Background Recent findings have associated alveolar bone loss (ABL) with the presence of senescent cells. Aging and the accumulation of senescent cells are associated with a pro‐inflammatory environment which may exacerbate tissue damage.
Luisa S. Battistelli, Renata M. Moraes, Yuri C. Santos, Jaqueline L. Ribeiro, Maíra T. Garcia, Renata F. Prado, Florent Elefteriou, Ana Lia Anbinder   +7 more
wiley   +1 more source

Dental enamel hypoplasia and intra‐tooth isotope records as indicators of physiological stress and environmental variability in Early Pleistocene hippopotamids from Melka Kunture (Upper Awash, Ethiopia)

Journal of Quaternary Science, EarlyView.
ABSTRACT Enamel hypoplasia results from temporary disruptions of enamel deposition during tooth development. It is widely used as an indicator of physiological stress in archeological and paleontological contexts; yet, its relationship with environmental conditions during tooth formation remains poorly constrained.
Giuseppe Briatico, Denis Geraads, Rita T. Melis, Margherita Mussi   +3 more
wiley   +1 more source

Balancing Prediction Performance and Spectral Interpretability: Multimetric Guided Design of Raman Spectrum Preprocessing Pipelines to Transfer Single Compound Models to Bioprocess Data

Journal of Raman Spectroscopy, EarlyView.
Calibration models were trained using single‐compound Raman spectra of ethanol and glucose, and then transferred to bioprocess spectra. Preprocessing, optimized to meet a multimetric quality framework, enabled this transfer whilst preserving the characteristic bands and the chemical interpretability of the models.
Gianmarco Luchetti Sfondalmondo, Marieke E. Klijn   +1 more
wiley   +1 more source

Resident and translocated American black bear movement patterns help identify locations for crossing structures along Interstate 40 in Tennessee and North Carolina

The Journal of Wildlife Management, EarlyView.
Bears selected areas with lower percent slope and higher percent canopy, but movement flow across the landscape was more generalized for translocated bears. Interstate 40 was a barrier to movement, but our models predicted several consistent road segments as having higher than average flow where bears might benefit from crossing structures.
Kristin J. Botzet, Joseph D. Clark, Logan K. Parr   +2 more
wiley   +1 more source

Triptolide Suppresses Tongue Squamous Cell Carcinoma Progression via PI3K–AKT Pathway Inhibition: An Integrative Network Pharmacology and Experimental Validation Study

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Tongue squamous cell carcinoma, the most aggressive subtype of oral squamous cell carcinoma, which is associated with high mortality, frequent recurrence, and early lymph‐node metastasis. Triptolide, a bioactive diterpenoid from Tripterygium wilfordii, exhibits broad anticancer activity.
Shan‐Shan Wang, Hong‐Cheng Wei, Lin Jiang, Yi‐Sen Shao   +3 more
wiley   +1 more source