https://journalcps.com/index.php/volumes/issue/feedCommunication in Physical Sciences2024-03-11T08:15:49-04:00Prof Nnabuk Okon Eddyokon.nnabuk@unn.edu.ngOpen Journal Systems<p>Communication in physical Science is a peer reviewed journal published by Faculty of Physical Sciences, University of Nigeria]- Formerly Journal of Physical Sciences</p>https://journalcps.com/index.php/volumes/article/view/456Combination-Difference Synchronization of Fractional Order Chaotic Duffing Oscillator and Financial Systems With Parameter Mismatch2024-03-08T13:48:12-05:00Kayode Stephen Ojokaojo@unilag.edu.ngMoruf Busaribusarimoruf20@gmail.comAbidemi Emmanuel Adenijiaeadeniji@bellsuniversity.edu.ngAdebowale Babatunde Adeloyeaadeloye@unilag.edu.ng<p><strong>Communication in Physical Sciences, 2024, 11(1):01-13</strong></p> <p><strong>Authors: Kayode Stephen Ojo</strong><strong><sup>,</sup></strong><strong><sup>∗</sup></strong><strong>, Moruf Busari, Abidemi Emmanuel Adeniji, Adebowale Babatunde Adeloye</strong></p> <p><strong><em>Received: 17 September 2023/Accepted: 26 January 2024</em></strong></p> <p>This research work is born out of the desire to design an effective synchronization scheme that could give a better understanding of the coordination of multiple processes and effective communication among various components of a complex system or between different groups of complex systems As a result, this research work presents combination-difference synchronization of fractional order chaotic (FOC) systems with parameter mismatches evolving from different initial conditions. Using the FOC Duffing oscillators and FOC financial systems as a paradigm, the backstepping technique is applied to design control laws for the achievement of combination-difference synchronization. These control laws enable the differences between the sums of the variables of the drive systems and differences of the variables of the response systems to converge to zero which confirms the achievement of combination difference synchronization. Numerical simulations provided confirm the effectiveness of the combination-difference synchronization technique. This result could be used to explain different interactions among particles and neurons of the same or different dynamical behaviour.</p>2024-01-30T00:00:00-05:00Copyright (c) 2024 Journal and Authorhttps://journalcps.com/index.php/volumes/article/view/457Effects of Annealing Temperature on the Dual Solution Synthesis and Optical Characterization of AlS: ZnS Thin Films2024-03-11T08:15:49-04:00Elizabeth Chinyere. Nwaokorongwunwaokorongwu.elizabeth@mouau.edu.ngPatricia Uchechi. Kanayochi-Okpechichiemeriedalu@gmail.comUgochukwu Josephu.joseph@mouau.edu.ng<p><strong>Communication in Physical Sciences, 2023, 10(3):20-28</strong></p> <p><strong>Authors: Elizabeth Chinyere Nwaokorongwu, Patricia Uchechi Kanayochi-Okpechi, Ugochukwu Joseph</strong></p> <p><strong><em>Received: 23 May 2023/Accepted: January 2024</em></strong></p> <p>SnS: ZnS alloyed thin films were successfully deposited on glass substrates using two solutions-based methods: SOLUTION GROWTH and technique at room temperature. Aluminium sulphate (AlSO<sub>4</sub>.7H<sub>2</sub>0) was the source of Al, Zinc sulphate (ZnSO<sub>4</sub>.7H<sub>2</sub>0) was the source of Zn, sodium thiosulphate (Na<sub>2</sub>S<sub>2</sub>S0<sub>3</sub>) served as the source of S. Ethylene DiamineTetraacetic Acid (EDTA) was used as the complexing agent. The effect of variations in annealing temperature was studied. The optical and solid state properties of the film like Reflectance (R), Absorbance(A), Transmittance (T), Refractive Index (n), Extinction Coefficient (K), Refractive index (n), Absorbance Spectra (A), and Transmittance Spectra T (%) were determined. These properties make AlS suitable for solar cell fabrication, and architectural design to reduce exposure to skin cancer, cataracts and impaired immune system due to UV rays. The band gap of the film suggested that the material is a semiconducting thin film. In recommendation, this material has high transmittance and is capable of absorbing UV rays, urgent development of this technology is recommended to lenses and mirror manufacturers.</p>2024-02-16T00:00:00-05:00Copyright (c) 2024 Journal and Authorhttps://journalcps.com/index.php/volumes/article/view/455Phytochemical Screening and Anti-microbial Properties of Herbal Medicines used for Treatment of Typhoid and Bacterial/Viral Infection in Kaduna State2024-03-08T13:25:01-05:00Ahmad Rufai Balarufai.ahmad1@gmail.comAbdullahi Sahalabuhanifa25@gmail.com<p><strong>Communication in Physical Sciences, 2024, 11(1):14-19</strong></p> <p><strong>Authors: Ahmad Rufai Bala</strong><strong><sup>1</sup></strong><strong> and Abdullahi Sahal</strong></p> <p><strong><em>Received: 17 September 2023/Accepted: 26 January 2024</em></strong></p> <p>There are current trends in information flow between traditional and conventional medical sciences, especially in the applications of herbs for the treatment of some diseases. Given this challenge, the present study was designed to screen the phytochemicals and anti-microbial activities of herbal medicines commonly used for the treatment of typhoid and bacterial/viral infection in Kaduna state. Samples collected were dried and extracted by maceration using distilled water. The Phytochemical screening of the herbal extracts was carried out using the method described by Sofowora, (2008). Agar well diffusion and agar dilution methods were used for the anti-microbial analysis. The result of the phytochemical screening reveals the presence of some important phytochemicals; Tannin (17.78%), Glycoside (15.56%), Polyphenol (15.56%), Flavonoids (13.33%), Saponi</p> <p>n (13.33%), Terpenoid (8.89%), steroids (8.89%), alkaloids (6.67%) respectively. some of the herbal extracts showed a broad spectrum of anti-bacterial activities with zones of inhibition ranging from 14 – to 26 mm. The MIC and MBC values ranged from 80mg/ml to 100mg/ml respectively. The results of this research provide the baseline scientific proof that some herbal medicines with phytochemicals exert antimicrobial activities and hence justify the traditional use of some herbal medicines in the treatment of typhoid and infections.</p>2024-01-30T00:00:00-05:00Copyright (c) 2024