Browsing by Publisher "Arts and Science Press Pte. Ltd."

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    Evaluation of artificial intelligence anxiety status of generation Z candidate nurses using machine learning in perspective of leadership
    (Arts and Science Press Pte. Ltd., 2024) Akkaya B.; Kırkbir İ.B.; Üstgörül S.
    This study aims to determine the artificial intelligence (AI) anxiety levels of Z-generation candidate nurses and the variables affecting the anxiety levels of artificial intelligence by the machine learning (ML) method. Data were collected from 431 candidate nurses by questionnaire using the convenience sampling method. R open access programming language was used for the statistical analysis of the study and the evaluation of significant variables according to their importance levels. The Boruta algorithm, a machine learning method, was used in the determination of the variables affecting the level of artificial intelligence anxiety according to the degree of importance. The findings showed that the most important variable for students' artificial intelligence anxiety level is age. Moreover, there is a statistically significant relationship between students' class and their anxiety level, a significant relationship between artificial intelligence and machine learning in health and their anxiety level, and a significant relationship between gender and technological competence evaluation. Furthermore, nearly half of the participants (48.5%) had very low anxiety, 12.8% had low anxiety, 30.2% had medium anxiety, 6.5% had high-level anxiety and 2.1% of them had very high levels of anxiety. With this research, the artificial intelligence anxiety of generation Z was determined by determining the demographic characteristics that are effective in artificial intelligence. We concluded that more sensitive analysis and different results can be obtained when using a machine learning algorithm compared to classical statistical analysis in determining the complex relationships in the data. © 2024 by author(s).
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    Behavior of enzymatic membranes under pressure: Effect of enzyme location
    (Arts and Science Press Pte. Ltd., 2024) Yurekli Y.; Guedidi S.; Altinkaya S.A.; Deratani A.; Innocent C.
    Enzyme immobilized membranes combine catalysis and separation functions. Their application in large-scale continuous processes requires knowing the behavior under pressure. Also, the effects of enzyme location on the mass transfer limitation, membranes’ stability, and filtration performance should be investigated. In this study, urease (URE) and trypsin (TRY) enzymes were physically immobilized in/on the surface of a polyacrylonitrile (AN69) membrane through layer-by-layer (LbL) self-assembly method using polyethylenemine (PEI) and sodium-alginate (ALG) as cationic and anionic polyelectrolytes respectively. URE, located on the membrane’s surface, degraded urea in a reaction-controlled regime, and its immobilization did not significantly change the hydraulic permeability. On the other hand, the TRY enzyme attached to the membrane’s pores reduced the permeability and degraded the BAPNA in a diffusion-controlled region. In TRY immobilized membranes, the conversion increased linearly with the transmembrane pressure, while in URE immobilized ones, conversion was maximum at 1 bar. Sandwiching the enzymes between two polyelectrolytes resulted in the highest catalytic activities. This configuration maintained most of the URE activity in the long-term filtration, but it did not help prevent TRY’s activity loss. © 2024 by author(s).