Results 101 to 110 of about 20,325,694 (338)

Non-kekulean benzenoid hydrocarbon: physico-chemical properties for benzenoid hydrocarbon using topological indices and mpolynomial [PDF]

Computational Algorithms and Numerical Dimensions
Topological indices are the numerical values that are connected to subatomic graphs in order to create the quantitative structure activity and structure attribute of a chemical compound and non-chemical graphs.
Anns Uzair, Aiman Ishtiaq, Misbah Rasheed   +2 more
doaj   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

A survey of index structure in big data era

大数据, 2019
With the advent of the big data era,the volume of data storage has exploded.In order to ensure the performance of system,the concurrent index structure becomes more and more important.However,the increase of storage volume and the increase of user ...
Zhaofeng YAN, Weihua ZHANG
doaj  

Variable Connectivity Index as a Tool for Modeling Structure-Property Relationships

Molecules, 2004
We report on the calculation of normal boiling points for a series of n = 58 aliphatic alcohols using the variable connectivity index in which variables x and y are used to modify the weights on carbon (x) and oxygen atoms (y) in molecular graphs ...
Subhash C. Basak, Denise Mills, Matevž Pompe, Milan Randić   +3 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Endosperm structure and Glycemic Index of Japonica Italian rice varieties

Frontiers in Plant Science
IntroductionGiven that rice serves as a crucial staple food for a significant portion of the global population and with the increasing number of individuals being diagnosed with diabetes, a primary objective in genetic improvement is to identify and ...
Filip Haxhari, Francesco Savorani, Mariangela Rondanelli, Enrico Cantaluppi, Luigi Campanini, Edoardo Magnani, Cinzia Simonelli, Gentian Gavoci, Alessandro Chiadò, Mattia Sozzi, Nicola Cavallini, Angelica Chiodoni, Clara Gasparri, Gaetan Claude Barrile, Alessandro Cavioni, Francesca Mansueto, Giuseppe Mazzola, Alessia Moroni, Zaira Patelli, Martina Pirola, Alice Tartara, Davide Guido, Simone Perna, Roberto Magnaghi   +23 more
doaj   +1 more source

Quantitative structure-retention relationships analysis of retention index of essential oils

Química Nova, 2011
Genetic algorithm and multiple linear regression (GA-MLR), partial least square (GA-PLS), kernel PLS (GA-KPLS) and Levenberg-Marquardt artificial neural network (L-M ANN) techniques were used to investigate the correlation between retention index (RI ...
Hadi Noorizadeh, Abbas Farmany, Mehrab Noorizadeh   +2 more
doaj   +1 more source

Efficient video retrieval using index structure

, 2008
Video retrieval remains a challenging problem since most of traditional query algorithms are ineffectual and time-consuming. In this article, we proposed a new video retrieval method, which segments the video stream by visual similarity between ...
Jing Zhang
semanticscholar   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source