In the project, we describe and evaluates the process for synthesis of copper-nickel oxide nanoparticles through two different methods: hydrothermal and electrochemical deposition. Subsequently, it delves into methods of characterization for nanoparticles. Performing an electrochemical analysis on the synthesized nanomaterial, it evaluates its use as a supercapacitor

Keywords: Nanoparticles, Hydrothermal, Electrodeposition, Synthesis, Copper-Nickel Oxide, Characterisation, Electrochemical, Capacitance, XRD.

[1]. Balamurugan, Jayaraman, Tran Duy Thanh, Seok-Bong Heo, Nam Hoon Kim, and JoongHee Lee. "Novel route to synthesis of N-doped graphene/Cu–Ni oxide composite for high electrochemical performance." Carbon 94 (2015): 962-970.
[2]. Bessi, A., B. Boudine, and C. Boudaren. "Fabrication and Characterization of TiO 2 Nanoparticles." In Proceedings of the Third International Symposium on Materials and Sustainable Development 3, pp. 296-300. Springer International Publishing, 2018.
[3]. Bréchignac, Catherine, Philippe Houdy, and Marcel Lahmani, eds. Nanomaterials and nanochemistry. Springer Science & Business Media, 2008.
[4]. Burgstaller, Wolfgang, Martina Hafner, Michael Voith, Andrei IonutMardare, and Achim Walter Hassel. "Copper–nickel oxide thin film library reactively co-sputtered from a metallic sectioned cathode." Journal of Materials Research 29, no. 1 (2014): 148-157.
[5]. Carnes, Corrie L., Jennifer Stipp, Kenneth J. Klabunde, and John Bonevich. "Synthesis, characterization, and adsorption studies of nanocrystalline copper oxide and nickel oxide." Langmuir 18, no. 4 (2002): 1352-1359..

This research paper develops a new version of the well known epidemic mathematical SEIR model to analyze the dynamics of COVID-19 (Coronavirus Disease-2019) transmission in India and Brazil. The equations of the proposed SEIR model are extended to incorporate fraction-order differential equations. After determine the equilibrium points, the stability analysis of this model is also performed. The numerical simulations are displaced graphically and theoretically for the various values of fractional parameter p . We also fitted the SEIR model with actual data to verify the accuracy of our mathematical study. Finally, we include a discussion and concluding remarks

Keywords: - ........

[1]. COVID-19-events as they happen. https://www.who.int/emergencies/diseases/novel-coronavirus-2019/events-as-theyhappen.
[2]. India COVID-19 Tracker. https://www.covid19india.org/2020.
[3]. Zou L., Ruan F., Huang M., SARS-cov-2 viral load in upper respiratory specimensof infected patients. N Engl J Med. vol. 382, 1177-1179, 2020.
[4]. Wang C., Horby P. W., Hayden F. G., Gao G. F., A Novel coronavirus outbreak of global health concern. Lancet, vol. 395, 470-473, 2020.
[5]. Kermack N. O., Mackendrick A. G., Contribution to Mathematical Theory of Epidemics, P. Roy. Soc. Lond. A. Mat. US, 1927. 700-721.

Acoustical measurements in a recording studio live room were carried out using an empirical version of Sweep Sinusoidal and software Impulse Response measurer based on Exponential Sweep Sinusoidal technique. The measures took place on strategic spots in the room, empirically used for sound recording. These spots are the back corners, and the middle of the live room. After reviewing measurements taken with the two methods, it was found that both are suitable for acoustical impulse response measures in rooms

Keywords: -Sweep Sinusoidal, acoustic measurements, room acoustics, impulse response.

[1]. Alonso, G. I., & Franco, Carlos. (2022). Acoustical Measurements for a small College Auditorium using Sinusoidal Tones. 12(7), 25–31.
[2]. Bjor, O.-H., & Nikolic, I. (2004). Building and room acoustics measurements with sine-sweep technique. Cfa/Daga, 423–424.
[3]. Everest, A. F., & Pohlman, K. C. (2009). Master Handbook of Acoustics 5th ed.
[4]. Farina, A. (2007). Advancements in impulse response measurements by sine sweeps. Audio Engineering Society - 122nd Audio Engineering Society Convention 2007, 3, 1626–1646.
[5]. Guidorzi, P., Barbaresi, L., D'Orazio, D., & Garai, M. (2015). Impulse responses measured with MLS or Swept-Sine signals applied to architectural acoustics: An in-depth analysis of the two methods and some case studies of measurements inside theaters. Energy Procedia, 78, 1611–1616. https://doi.org/10.1016/j.egypro.2015.11.236.

In Huiramba, Michoacán, Mexico, the technical, social, and environmental factors affecting the production of forest fruits, mainly strawberries for export, are being analyzed. The study of the area regarding water footprint has resulted in collateral impacts, primarily of an environmental nature, leading to discontent among the population due to adverse phenomena resulting from these impacts. Through a methodology that involves calculating implicit indicators of fresh fruit production for export, the collateral production analysis is conducted, determining the water footprint, production potential, and environmental impact generated in medium and short-term scenarios. The results indicate that in three scenarios, the amount of resources allocated for production exceeds the availability

Keywords: - ........

[1]. AgroDer. 2012. Huellahídricaen México en el contexto de norteamerica. WWF(Wild Word Fund for Nature) México y AgroDer. México D.F.
[2]. Al-Karaki, G.; Al-Hashimi, M. 2012. Green fodder production and wáter use efficiency of some forage crops under hydroponic conditions. International Scholarly Research Network ISRN Agronomy. 12: 1-5.
[3]. ConstituciónPolítica de losEstadosUnidosMexicanos, DiarioOficial de la Federación 5 de Febrero de 1917. Recuperado de http://www.diputados.gob.mx/LeyesBiblio/pdf/1_090819.pdf
[4]. Dorward, A. 2013. Agricultural labor productivity, food prices and sustainable development impacts and indicators. Food Policy. 39: 49-50.
[5]. Fabian Montañez M. et.al. (2021). Los serviciosecosistemicosen Michoacán, México: unaestrategia de asociaciónsimbiótica del recursoagua y bosquestemplados.South Florida Journalof Development, Miami, p. 8164- 8170 v,2, n,5. DOI: 10.46932/sfjdv2n5-132.