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1. Comparative Analysis of Geomagnetic Events Identified According to Different Indices

   Abstract

   Results are presented from a comparative analysis of geomagnetic events identified according to different indices. A way of identifying...

   K. G. Ratovsky, M. V. Klimenko, ... Y. V. Yasyukevich in Bulletin of the Russian Academy of Sciences: Physics

   Article 01 March 2024
   

2. Some bond-additive topological indices of four types of dendrimers

   Numerical values that capture the symmetry of molecular structures are called topological indices. Topological indices are said to be bond-additive...

   Farzaneh Falahati-Nezhad, Mahdieh Azari in The European Physical Journal Plus

   Article 07 October 2023
   

3. Structure–property modeling of coumarins and coumarin-related compounds in pharmacotherapy of cancer by employing graphical topological indices

   Abstract

   Coumarins, a subgroup of colorless and crystalline oxygenated heterocyclic compounds originally discovered in the plant Dipteryx odorata,...

   Sujata T. Timmanaikar, Sakander Hayat, ... Shabana Banu in The European Physical Journal E

   Article 12 May 2024
   

4. Characterizing superlattice topologies via fifth M-Zagreb polynomials and structural indices

   Graph theory provides a strong framework for evaluating and comprehending atom and molecule connections and interactions. Chemical compounds are...

   Hani Shaker, Sabeen Javaid, ... Asim Naseem in The European Physical Journal Plus

   Article 17 November 2023
   

5. Structure-property modeling of physicochemical properties of fractal trigonal triphenylenoids by means of novel degree-based topological indices

   Abstract

   Trigonal triphenylenoids (TTPs) are a fascinating class of organic molecules with unique structural and electronic properties. Their diverse...

   K. Jyothish, Roy Santiago, ... Sakander Hayat in The European Physical Journal E

   Article 18 June 2024
   

6. “Generative” Indices of Sunspot Solar Activity: 145-Year Composite Series

   Traditional indices, which we call apparent indices, describe the current state of solar activity and are very important for understanding the...

   Y. A. Nagovitsyn, A. A. Osipova, E. Y. Nagovitsyna in Solar Physics

   Article 08 February 2021
   

7. Comparison of ULF Wave Indices from Conjugate Magnetometer Arrays in Antarctica and Greenland

   ULF (Ultra-Low-Frequency) wave index, characterizing the level of geomagnetic field fluctuations in the frequency band of most intense Pc5 pulsations...

   Olga V. Kozyreva, Vyacheslav A. Pilipenko, ... Thomas R. Edwards in Problems of Geocosmos—2022

   Conference paper 2023
   

8. On molecular modeling and QSPR analysis of lyme disease medicines via topological indices

   Lyme disease is the most widespread vector-borne infection in the United States, as well as in Asia and Europe. It is caused by the spirochete...

   Rongbing Huang, Abid Mahboob, ... Muhammad Kamran Siddiqui in The European Physical Journal Plus

   Article 15 March 2023
   

9. Study of Cosmic Ray Intensity (CRI) along with Solar Wind Parameters and Geomagnetic Indices from Different Stations

   Abstract

   In this study, the variations of cosmic ray intensity (CRI) and their correlations with solar wind parameters and geomagnetic indices from...

   Chali Idosa Uga, Binod Adhikari in Cosmic Research

   Article 16 September 2023
   

10. Solar Activity

    Before proceeding to the description of the phenomena of solar activity (SA), it is necessary at least briefly to get acquainted with the structure...

    Leonty Miroshnichenko in Solar-Terrestrial Relations

    Chapter 2023
    

11. On the construction of some bioconjugate networks and their structural modeling via irregularity topological indices

    Bioconjugate networks refer to networks that are formed by connecting different molecules or particles (such as proteins, enzymes, or nanoparticles)...

    Asad Ullah, Shahid Zaman, ... Muniba Muzammal in The European Physical Journal E

    Article 21 August 2023
    

12. On computation of some open and closed neighbourhood degree sum-based topological indices for metal-insulator transition super lattice network

    The properties and activities of chemical compounds can be explored by computing topological descriptors of molecular compounds. We investigate the...

    Vignesh Ravi, G. Hannah Grace, Kalyani Desikan in The European Physical Journal Plus

    Article 27 April 2023
    

13. Measurement and Calculation of the Refractive Indices of Langasite-Family Crystals Sr₃NbFe₃Si₂O₁₄, Ba₃NbFe₃Si₂O₁₄, and Ba₃TaFe₃Si₂O₁₄ and the Relationship of Optical Activity with Peculiarities of Electron-Density Distribution

    Abstract

    The optical properties of Sr ₃ NbFe ₃ Si ₂ O ₁₄ , Ba ₃ NbFe ₃ Si ₂ O ₁₄ , and Ba ₃ TaFe ₃ Si ₂ O ₁₄ single crystals (promising multiferroics belonging to the...

    A. F. Konstantinova, T. G. Golovina, ... V. I. Sokolov in Crystallography Reports

    Article 01 December 2022
    

14. Evaluation of Tokamak MHD Instabilities by Instability Indices Investigating Such as Entropy

    To investigate the fluctuations of the Mirnov coils magnetic field in tokamak plasma, it is required to assess the spatiotemporal signals. Spatial...

    H. Mehrniya, M. K. Salem, A. Salar Elahi in Journal of Fusion Energy

    Article 20 August 2022
    

15. Comparison of Geomagnetic Indices During Even and Odd Solar Cycles SC17 – SC24: Signatures of Gnevyshev Gap in Geomagnetic Activity

    We show that the time series of sunspot group areas has a gap, the so-called Gnevyshev gap (GG), between ascending and descending phases of the cycle...

    Jouni Takalo in Solar Physics

    Article Open access 18 January 2021
    

16. A history of solar activity over millennia

    Here we review present knowledge of the long-term behaviour of solar activity on a multi-millennial timescale, as reconstructed using the indirect...

    Ilya G. Usoskin in Living Reviews in Solar Physics

    Article Open access 05 May 2023
    

17. Regression Analysis and Mathematical Modeling of Fluctuations in Microcirculation Indices in Symmetrical Regions of the Human Upper Limbs

    Abstract

    A new computational and experimental method for estimating the stability of oscillatory processes in the regional circulatory system, based...

    L. V. Mezentseva in Biophysics

    Article 01 June 2022
    

18. M-polynomial and neighborhood M-polynomial methods for topological indices of porous graphene

    A molecular structure can be described by a parameter, polynomial or matrix. The physico-chemical features, bio-activities of a chemical compound are...

    M. C. Shanmukha, A. Usha, ... N. S. Basavarajappa in The European Physical Journal Plus

    Article 29 October 2021
    

19. Assessment and prevention of inattention and sleepiness during monotonous operator activity with underlying sleep deprivation

    The aim of the study was to evaluate psychophysiological predictors of the quality of monotonous activity performance against the background of...

    Olga N. Tkachenko, Vladimir B. Dorokhov, ... Dmitry S. Sveshnikov in The European Physical Journal Special Topics

    Article 05 February 2024
    

20. Thunderstorm Predictions Using Artificial Neural Network with Radiosonde Indices in Saumlaki Area

    Thunderstorms are hydro-meteorological disasters that need to be vigilant. In response, various studies have been conducted to determine suitable...

    Indra, Richard Mahendra Putra in Proceedings of the International Conference on Radioscience, Equatorial Atmospheric Science and Environment and Humanosphere Science

    Conference paper 2024