13 research outputs found
Comparison the efficiency of Fenton and Photo–fenton processes for the removal of Reactive red 198 Dye from the aqueous solution
The textile industry produces a large amount of polluted effluents discharged into the environment. Therefore, this research was carried out to compare the efficiency of removal of Reactive red 198 (RR–198) dye by fenton and photo–fenton processes and determine the optimal conditions for maximum removal.
This study was conducted on a laboratory scale. The effect of influential parameters, including pH (3–9), Fe(II) concentration (10–200mg/L), H2O2 concentration (25–150mg/L), dye concentration (50–200mg/L) and reaction time (15–90min.) on dye removal was investigated and the optimal conditions were determined according to the maximum dye removal efficiency.
The results indicated that the dye removal rate increased as the pH and Fe(II) concentration decreased. The optimal conditions for RR–198 removals from the aqueous solution are pH of 3, Fe (II) concentration of 10mg/L, H2O2 concentration of 50mg/L, the initial dye concentration of 50mg/L, and the reaction time of 15min.. The maximum dye removal efficiency under optimal conditions was 98.82%.
The results of this study revealed that the photo–fenton process was superior to the removal of dye compared to fenton process
Explainable Predictive Maintenance
Explainable Artificial Intelligence (XAI) fills the role of a critical
interface fostering interactions between sophisticated intelligent systems and
diverse individuals, including data scientists, domain experts, end-users, and
more. It aids in deciphering the intricate internal mechanisms of ``black box''
Machine Learning (ML), rendering the reasons behind their decisions more
understandable. However, current research in XAI primarily focuses on two
aspects; ways to facilitate user trust, or to debug and refine the ML model.
The majority of it falls short of recognising the diverse types of explanations
needed in broader contexts, as different users and varied application areas
necessitate solutions tailored to their specific needs.
One such domain is Predictive Maintenance (PdM), an exploding area of
research under the Industry 4.0 \& 5.0 umbrella. This position paper highlights
the gap between existing XAI methodologies and the specific requirements for
explanations within industrial applications, particularly the Predictive
Maintenance field. Despite explainability's crucial role, this subject remains
a relatively under-explored area, making this paper a pioneering attempt to
bring relevant challenges to the research community's attention. We provide an
overview of predictive maintenance tasks and accentuate the need and varying
purposes for corresponding explanations. We then list and describe XAI
techniques commonly employed in the literature, discussing their suitability
for PdM tasks. Finally, to make the ideas and claims more concrete, we
demonstrate XAI applied in four specific industrial use cases: commercial
vehicles, metro trains, steel plants, and wind farms, spotlighting areas
requiring further research.Comment: 51 pages, 9 figure
Relación entre Personalidad, Estatus de Identidad, Sentido y Propósito en la Vida en solicitantes de Asilo
La majoria de sol·licitants d’asil han experimentat reptes d’identitat en el seu periple envers una vida més digna. La literatura mostra que aquells que millor superen les dificultats s’identifiquen millor a sà mateixos i troben nous sentits i propòsits. Aquest estudi investiga la relació entre Personalitat, Identitat de l’Ego, i Sentit i Propòsit a la Vida. La mostra consistà en dos grups amb la mateixa llengua, cultura i religió: un vivia a l’Iran (n = 192, M = 29,10 anys) i l’altre a BerlÃn (n = 169, M = 29,02 anys) com a sol·licitant d’asil. Administrarem el NEO-FFI, la Mesura Objectiva dels Estatus d’Identitat de l’Ego (EOM-EIS-2), i els qüestionaris Sentit (MLQ) i Propòsit a la Vida (PIL). Els resultats mostraren que ambdós grups no es diferenciaven significativament en els seus perfils de personalitat, però sà en Difusió de la Identitat, Presencia de Sentit i Propòsit a la vida. Concloem que quan es dissenyen programes d’integració, si volem millorar la seva eficà cia, els psicòlegs han de considerar la personalitat per aixà poder empoderar als sol·licitants d’asil amb la finalitat d’aconseguir una identitat més saludable, i trobar nous sentits i propòsits en la nova societat d’acollida.La mayorÃa de los solicitantes de asilo han tenido retos de identidad en su periplo hacia una vida más digna. La literatura muestra que aquellos que mejor superan las dificultades se identifican mejor a sà mismos y encuentran nuevos sentidos y propósitos. Este estudio investiga la relación entre Personalidad, Identidad del Ego, y Sentido y Propósito en la Vida. La muestra consistió en dos grupos con la misma lengua, cultura y religión: uno vivÃa en Irán (n = 192, M = 29,10 años) y otro en BerlÃn (n = 169, M = 29,02 años) como solicitante de asilo. Administramos el NEO-FFI, la Medida Objetiva de los Estatus de Identidad del Ego (EOM-EIS-2), y los cuestionarios Sentido (MLQ) y Propósito en la vida (PIL). Los resultados mostraron que ambos grupos no se diferenciaron significativamente en sus perfiles de personalidad, pero sà en Difusión de la Identidad, Presencia de Sentido y Propósito en la Vida. Concluimos que cuando se diseñan programas eficaces de integración, los psicólogos deben considerar la personalidad para asà poder empoderar a los solicitantes de asilo con la finalidad de lograr una identidad más saludable, y hallar nuevos sentidos y propósitos en la nueva sociedad de acogida.Most asylum seekers have experienced identity challenges in their journey towards a more dignified life. Research shows that those who better overcome difficulties are those who successfully identify themselves and find new meaning and purposes in life. This research investigates the relationship between Personality, Ego Identity Status, and Meaning and Purpose in Life. The sample consisted of two groups with the same language, culture and religion: One living in Iran (n = 192, M = 29,10 yrs.) and the other in Berlin (n = 169, M = 29,02 yrs.) as asylum seekers. We administered the NEO-FFI, the Objective Measure of Ego Identity Status (EOM-EIS-2), the Meaning in Life Questionnaire (MLQ) and the Purpose in Life (PIL) questionnaire. Results showed that both groups did not significantly differ on their personality profiles but they differed on Identity Foreclosure, Presence of Meaning and Purpose in Life. Moreover, in the asylum seekers, personality contributed to the prediction of certain identity statuses and meaning and purpose in life variables. We concluded that when it comes to designing successful integration programs, psychologists have to consider personality to empower asylum seekers to achieve a healthier identity, and to find new meanings and purposes in the host society.Universitat Autònoma de Barcelona. Programa de Doctorat en Psicologia ClÃnica i de la Salu
Relación entre Personalidad, Estatus de Identidad, Sentido y Propósito en la Vida en solicitantes de Asilo
La majoria de sol·licitants d'asil han experimentat reptes d'identitat en el seu periple envers una vida més digna. La literatura mostra que aquells que millor superen les dificultats s'identifiquen millor a sà mateixos i troben nous sentits i propòsits. Aquest estudi investiga la relació entre Personalitat, Identitat de l'Ego, i Sentit i Propòsit a la Vida. La mostra consistà en dos grups amb la mateixa llengua, cultura i religió: un vivia a l'Iran (n = 192, M = 29,10 anys) i l'altre a BerlÃn (n = 169, M = 29,02 anys) com a sol·licitant d'asil. Administrarem el NEO-FFI, la Mesura Objectiva dels Estatus d'Identitat de l'Ego (EOM-EIS-2), i els qüestionaris Sentit (MLQ) i Propòsit a la Vida (PIL). Els resultats mostraren que ambdós grups no es diferenciaven significativament en els seus perfils de personalitat, però sà en Difusió de la Identitat, Presencia de Sentit i Propòsit a la vida. Concloem que quan es dissenyen programes d'integració, si volem millorar la seva eficà cia, els psicòlegs han de considerar la personalitat per aixà poder empoderar als sol·licitants d'asil amb la finalitat d'aconseguir una identitat més saludable, i trobar nous sentits i propòsits en la nova societat d'acollida.La mayorÃa de los solicitantes de asilo han tenido retos de identidad en su periplo hacia una vida más digna. La literatura muestra que aquellos que mejor superan las dificultades se identifican mejor a sà mismos y encuentran nuevos sentidos y propósitos. Este estudio investiga la relación entre Personalidad, Identidad del Ego, y Sentido y Propósito en la Vida. La muestra consistió en dos grupos con la misma lengua, cultura y religión: uno vivÃa en Irán (n = 192, M = 29,10 años) y otro en BerlÃn (n = 169, M = 29,02 años) como solicitante de asilo. Administramos el NEO-FFI, la Medida Objetiva de los Estatus de Identidad del Ego (EOM-EIS-2), y los cuestionarios Sentido (MLQ) y Propósito en la vida (PIL). Los resultados mostraron que ambos grupos no se diferenciaron significativamente en sus perfiles de personalidad, pero sà en Difusión de la Identidad, Presencia de Sentido y Propósito en la Vida. Concluimos que cuando se diseñan programas eficaces de integración, los psicólogos deben considerar la personalidad para asà poder empoderar a los solicitantes de asilo con la finalidad de lograr una identidad más saludable, y hallar nuevos sentidos y propósitos en la nueva sociedad de acogida.Most asylum seekers have experienced identity challenges in their journey towards a more dignified life. Research shows that those who better overcome difficulties are those who successfully identify themselves and find new meaning and purposes in life. This research investigates the relationship between Personality, Ego Identity Status, and Meaning and Purpose in Life. The sample consisted of two groups with the same language, culture and religion: One living in Iran (n = 192, M = 29,10 yrs.) and the other in Berlin (n = 169, M = 29,02 yrs.) as asylum seekers. We administered the NEO-FFI, the Objective Measure of Ego Identity Status (EOM-EIS-2), the Meaning in Life Questionnaire (MLQ) and the Purpose in Life (PIL) questionnaire. Results showed that both groups did not significantly differ on their personality profiles but they differed on Identity Foreclosure, Presence of Meaning and Purpose in Life. Moreover, in the asylum seekers, personality contributed to the prediction of certain identity statuses and meaning and purpose in life variables. We concluded that when it comes to designing successful integration programs, psychologists have to consider personality to empower asylum seekers to achieve a healthier identity, and to find new meanings and purposes in the host society
Evaluation of Acute Complications of Esophageal Radiation in Patients with Breast Cancer Treated at the Radiotherapy Center of Tohid Hospital in Sanandaj in 2020
Background and Aim: Radiotherapy is a major modality for cancer treatment. One of the most important complications of breast radiotherapy is esophagitis. Esophagitis can reduce patient’s quality of life. Because of increasing role of radiotherapy in cancer treatment and importance of attention to quality of life in cancer patients, evaluation of radiotherapy complications is essential.
Materials and Methods: This was a descriptive analytic study and included 34 breast cancer patients who had referred to the radiotherapy center of Tohid Hospital in Sanandaj and received radiation therapy. Based on a standard questionnaire of esophagus complications, patients were assessed for the symptoms of esophagitis for six consecutive weeks. In addition to demographic characteristics and assigning a code to every patient and weekly follow ups for searching esophagitis symptoms, amount of received radiation dose and other dosimetric indecies were calculated and the results were analyzed.
Results: According to the results, mean prescription dose was 50 Gy and the average of mean dose and maximum dose received by esophagus were 2.60 and 29.78 Gy respectively. The most and least rates of complications were found in the third and first weeks respectively.
Conclusion: In the patients who had received breast radiation therapy in the radiotherapy center of Tohid Hospital in Sanandaj in 2020, incidence of esophagitis was significantly correlated with the mean dose of radiation
Explain your clusters with words : The role of metadata in interactive clustering
In this preliminary work, we present an approach for the augmentation of clustering with natural language explanations. In clustering there are 2 main challenges: a) choice of a proper, reasonable number of clusters, and b) cluster analysis and profiling. There is a plethora of technics for a) but not so much for b), which is in general a laborious task of explaining obtained clusters. We propose a method that aids experts in cluster analysis by providing an iterative, human-in-the-loop methodology of generating cluster explanations. In an illustrative example, we show how the process of clustering on a set of objective variables could be facilitated with textual metadata. In our case, images of products from online fashion store are used for clustering. Then, product descriptions are used for profiling clusters. © 2022 Copyright for this paper by its authors. This paper is funded from the XPM (ExplainablePredictive Maintenance) project funded by the National Science Center, Poland under CHIST-ERAprogramme Grant Agreement No. 857925 (NCNUMO-2020/02/Y/ST6/00070).The work of Szymon Bobek has been additionallysupported by a HuLCKA grant from the PriorityResearch Area (Digiworld) under the Strategic Programme Excellence Initiative at the JagiellonianUniversity (U1U/P06/NO/02.16).The work of Samaneh Jamshidi was supportedby CHIST-ERA grant CHIST-ERA-19-XAI-012funded by Swedish Research Council.</p
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Bilateral retro-auricular milia en plaque: A case report and review of the literature
Impact and Fracture Strength of Simulated Immature Teeth Treated with Mineral Trioxide Aggregate Apical Plug and Fiber Post Versus Revascularization
Introduction: Immature necrotic teeth are at a high risk of fracture, especially at the cervical region, after treatment. This study aimed to compare the impact and fracture strength of immature permanent teeth treated with revascularization versus a mineral trioxide aggregate (MTA) plug and fiber post. Methods: This in vitro, experimental study was conducted on 160 maxillary central incisors, which were randomly divided into 10 groups. The groups included a fracture (F) and impact (I) negative control group, F and I positive control groups, F and I MTA groups, F and I revascularizing group, and F and I revascularized groups. Fracture strength was measured using a universal testing machine with a crosshead speed of 1 mm/min. Other tooth samples were then subjected to the Charpy impact test for impact strength measurements, and the amount of energy absorbed by the teeth was determined. Data were analyzed using the Kolmogorov-Smirnov test, analysis of variance, and the Tukey test. Results: The mean load to fracture of the negative, positive, MTA, revacularizing, and revascularized groups was 1931.8, 1350.1, 1003.8, 1262.5, and 1100.2 N, respectively, and the mean impact strength was 5.04, 3.6, 3.68, 3.16, and 3.65 J, respectively. The fracture and impact strength of the negative control group was significantly higher than that of the other groups (P \u3c .05), but the other groups were not significantly different in this respect (P \u3e .05). Conclusions: Despite the limitations of this study, the results showed that none of the tested modalities could significantly increase the impact and fracture strength of simulated immature teeth
Determination of IL-23 receptor expression and gene polymorphism (rs1884444) in Iranian patients with ankylosing spondylitis
Abstract Background Through investigating genetic variations, it has been demonstrated that single nucleotide polymorphisms (SNPs) in the IL-23 receptor (IL23R) gene have a critical role in the pathophysiology of ankylosing spondylitis (AS). Here, we investigated whether the IL23R variant (rs1884444) is associated with AS in the Iranian population. Methods and material In this research, we analyzed rs1884444 in a group of 425 patients with AS and 400 matched controls. For DNA extraction, the phenol/chloroform technique was utilized. Peripheral blood mononuclear cells (PBMCs) were obtained from the whole blood of 39 patients and 43 healthy controls and total RNA was extracted. Genotyping was performed by amplification-refractory mutation system (ARMS)–PCR method. Afterward, the expression level of IL23R was analyzed by the real-time quantitative (Q)-PCR method. Results We observed no significant association between the distribution of alleles and genotypes of rs1884444 and susceptibility to AS. In addition, the expression level of IL23R did not differ between PBMCs from AS patients compared to the control group (P = 0.167). Furthermore, the relative expression level of IL23R was positively correlated with the BASDAI (P < 0.01) and BASFI (P < 0.05) scores of the patients. Conclusion It appears that IL23R polymorphism (rs1884444) and the level of gene expression might not contribute to the susceptibility to AS in the Iranian population. The correlation of IL23R expression with the level of BASDAI and BASFI scores in patients may be due to the role of the IL-23/IL-23R signaling cascade in inflammation and exert a critical role in the development of AS