{"title":"Kinetic and Equilibrium Studies of Methylene Blue Adsorption on Alstonia Scholaris Plant Leaf Powder","authors":"Pardeshi SD","doi":"10.23880/psbj-16000249","DOIUrl":"https://doi.org/10.23880/psbj-16000249","url":null,"abstract":"In the current work the methylene blue removal using leaf powder of Alstonia Scholaris was investigated. Pseudo first order, second order and Elovic model ware applied, it has been observed that the adsorption follows second order kinetic model. The isotherm study was done by using Langmuir, Temkin and Freundlich isotherm, the Freundlich isotherm was best suited for present investigation. The maximum adsorption was observed at pH 7.5.","PeriodicalId":471674,"journal":{"name":"Physical science & biophysics journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135406218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coherence, Compartmentation and Bioenergetics in Living Matter","authors":"Renati P","doi":"10.23880/psbj-16000246","DOIUrl":"https://doi.org/10.23880/psbj-16000246","url":null,"abstract":"In reference (Renati, 2020), Quantum Electrodynamical (QED) bases for the emergence of living matter have been reviewed and related to the “irreducible” properties displayed by biological systems (such as morphogenesis, ordered biochemistry, memory, adaptation, teleology, behaviour, and semantics in general). In this short paper a focus is given on the strict relationship between coherence, thermodynamic cycles, matter space organisation at microscopical level, and energy mobilisation in organisms. The interdependence of these aspects is so intrinsic that, we could say, they are two sides of the same coin: the existence of nested hierarchies of coherences and the space compartmentation are the conditions which allow to transfer energy packets on demand and to keep the entropy nest to nil levels.","PeriodicalId":471674,"journal":{"name":"Physical science & biophysics journal","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135406219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Process of Human Speech and of Human Music","authors":"Dorda G","doi":"10.23880/psbj-16000243","DOIUrl":"https://doi.org/10.23880/psbj-16000243","url":null,"abstract":"Considering the experimental data of sound, it is shown that the existence of human speech and of the musical culture refer to the feeling-effect of human, discovered by Pythagoras.","PeriodicalId":471674,"journal":{"name":"Physical science & biophysics journal","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135406217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modified Metrics of Acoustic Black Holes: A Review","authors":"Anacleto, M. A., Brito, F. A., Passos, E.","doi":"10.23880/psbj-16000245","DOIUrl":"https://doi.org/10.23880/psbj-16000245","url":null,"abstract":"In this brief review, we will address acoustic black holes arising from quantum field theory in the Lorentz-violating and non-commutative background. Thus, we consider canonical acoustic black holes with effective metrics for the purpose of investigating Hawking radiation and entropy. We show that due to the generalized uncertainty principle and the modified dispersion relation, the Hawking temperature is regularized, that is, free from the singularity when the horizon radius goes to zero. In addition, we also find logarithmic corrections in the leading order for entropy.","PeriodicalId":471674,"journal":{"name":"Physical science & biophysics journal","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135405559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modeling of Nanometer Scale Physical Objects","authors":"Rumyantsev VV","doi":"10.23880/psbj-16000242","DOIUrl":"https://doi.org/10.23880/psbj-16000242","url":null,"abstract":"The paper gives an overall descriptive summary of the properties of nanostructured objects. We dwell in detail on dispersion of polariton excitations in a one-dimensional array of nanoscale cavities with embedded quantum dots as well as on a computer “experiment” which demonstrates the band gap dependence on a nanofilm width.","PeriodicalId":471674,"journal":{"name":"Physical science & biophysics journal","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135406214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessing the Performance of Biogas Digester as a Sustainable Energy Technology: Solution for Domestic Use in Tunasan, Muntinlupa City, Philippines","authors":"Galvez JO","doi":"10.23880/psbj-16000251","DOIUrl":"https://doi.org/10.23880/psbj-16000251","url":null,"abstract":"The Department of Science and Technology (DOST) in the Philippines has initiated a project focused on biogas digesters, which are being implemented in Muntinlupa City, the southernmost city in the National Capital Region (NCR). A biogas digester is an oxygen-free vessel that utilizes organic waste materials to produce biogas, which can be used for cooking and heating purposes. As part of Muntinlupa City’s waste management practices, the Environmental Sanitation Center (ESC), an office responsible for implementing the ecological solid waste management system in the city, has been operating a functioning model of a biogas digester at the Pacwood Site in Barangay Tunasan which is located in the southern section of the city, adjacent to the province of Laguna. The study aims to assess the functionality, feasibility, and potential for household utilization of the biogas digester among the residents of Barangay Tunasan. The research methods employed included online and actual surveys targeting the citizens of the locality, an on-site visit at the ESC facility, and an interview with relevant personnel managing the biogas digester. Majority of the respondents were unaware of the biogas digester and had not yet used it, but expressed willingness to utilize it for domestic purposes. The biogas digester at the Pacwood Site was operated by utilizing ostrich feces which were fed with shredded vegetable waste from the public market. The project was found to be sustainable and contributed to the waste management efforts of the city. However, the researchers identified potential areas for improvement, and due to the limited data obtained, further studies were recommended to gather more information and insights. The functioning model established in Barangay Tunasan provided positive results in terms of sustainability and waste management. Additional research is required to enhance the project and address the identified areas for improvement.","PeriodicalId":471674,"journal":{"name":"Physical science & biophysics journal","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135406210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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