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European Dental Research and Biomaterials Journal 2023年第1/02期03卷 001-002页

作者： Fabiano Vieira Vilhena Paulo Henrique Perlatti D'Alpino Trials Research and Development Inc. São Paulo SP Brazil Triplet Biotechnology Solutions São Paulo SP Brazil São Paulo State University (UNESP) School of Sciences POSMAT – Post-Graduate Program in Materials Science and Technology Bauru SP Brazil

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Study of Machine Learning Techniques for Damage Identification in a Beam 10th

Study of Machine Learning Techniques for Damage Identifica...

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10th International Conference on Wave Mechanics and Vibrations, WMVC 2022

作者： da Silva Coelho, Jefferson de Sousa, Amanda Aryda Silva Rodrigues Machado, Marcela Rodrigues Dutkiewicz, Maciej Department of Mechanical Engineering University of Brasília Campus Universitário Darcy Ribeiro Faculdade de Tecnologia - Asa Norte DF Brasília Brazil Post-Graduate Program - Integrity of Engineering Materials University of Brasília Campus Universitário Darcy Ribeiro Faculdade de Tecnologia - Asa Norte DF Brasília70910-900 Brazil Faculty of Civil Environmental Engineering and Architecture University of Science and Technology Bydgoszcz85-796 Poland

ISBN: (纸本)9783031157578

Damage is defined as any change to the material, geometry or boundary condition that can modify the structure’s properties or response. In the past, damage identification was performed through periodical inspection, non-destructive testing/non-destructive evaluation, or visual observation. Structural health monitoring (SHM) has emerged to transition from offline damage identification to near real-time and online damage assessment. Hence, SHM is a damage detection strategy to monitor a structure for a period using a series of continuous measurement devices, which then collect the system’s characteristics and subsequently perform statistical analysis to assess the current circumstances and health of the structure. One of the first steps for the study of SHM is damage detection followed by monitoring. Machine Learning (ML) techniques can be used to develop viable algorithms to make potential predictions. ML algorithms are therefore providing the tools needed to enhance the capabilities of SHM systems and provide intelligent solutions to past challenges. Preliminary studies have reviewed that the extension of ML into SHM has dramatically increased the system’s capabilities, providing innovative solutions to different research challenges. This work conducts a study of the use of ML to identify damage in a beam and discuss the challenge of usage, performance and implementation of each technique. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Decision trees

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Chemical composition, antioxidant and biological activity of leaves passiflora foetida

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Chemical Engineering Transactions 2018年 64卷 241-246页

作者： de Melo Filho, Antonio A. Kamezaki, Ângela Kinuko Ribeiro, Pedro R. E. de Melo, Ana Cristina G. R. Fernández, Ismael M. Santos, Ricardo C. Chagas, Edvan A. Chagas, Pollyana C. Post-Graduate Program in Chemistry PPGQ Center for Research and Graduate Studies in Science and Technology NPPGCT UFRR Paricarana Campus Boa Vista-RRCEP 69304-000 Brazil Departament of Chemistry UFRR Paricarana Campus Boa Vista-RRCEP 69304-000 Brazil Post-Graduate in Natural Resources Program Federal University of Roraima UFRR Paricarana Campus Boa Vista-RRCEP 69304-000 Brazil Post Graduate Program in Biodiversity and Biotechnology Bionorte State Coordination of Roraima UFRR Paricarana Campus Boa Vista-RRCEP 69304-000 Brazil National Postdoctoral Program of CAPES PNPD/CAPES associated to the Postgraduate Program in Agronomy POSAGRO/UFRR and Embrapa Boa Vista-RR Brazil Embrapa CNPq Research Produtivity Scholarship Rodovia 174 Km 8 Industrial District Boa VistaRRCEP 69301970 Brazil POSAGRO/UFRR Cauame Campus Boa Vista-RR Brazil

ISBN: (纸本)9788895608563

The aim of this study was to determine the chemical composition (IR), characterize minerals (ICP-OES), antioxidant activity, total phenols, inhibition of acetylcholinesterase (AChE) and antimicrobial activity of leaf extract of wild passion fruit (Passiflora foetida L.). The results obtained by Infrared of the hexane extract indicate the presence of aliphatic compounds such as fatty acids and esters, long chain alcohols and steroids. The major minerals were: phosphorus (1093.00 mg L-1), magnesium (418.77 mg L-1), sulfur (282.56 mg L-1) and potassium (157.46 mg L-1). The total phenolic content was 16.78 mg of gallic acid equivalent 100 g-1 extract. The hexane extract showed inhibition of 17.97% for antioxidant activity. The activity on AChE was 96.46% inhibition. As for microorganisms, the extract showed inhibition on Gram-positive bacteria Bacillus cereus (77.93%), Staphylococcus aureus (88.25%), Gram-negative Citrobacter freundii (82.74%), Salmonella typhimurium (83.21%) and yeast C. albicans (53.29%). Copyright © 2018, AIDIC Servizi S.r.l.

关键词： Hexane

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Direct Identification of Intact Proteins Using a Low-Resolution Mass Spectrometer with CIDn/ETnoD

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Journal of the American Society for Mass Spectrometry 2024年第7期35卷 1507-1515页

作者： Kuo, Cheng-Yu Zheng, Yi-Feng Wang, Wei-Chen Toh, Jie-Teng Hsu, Yu-Ming Chien, Han-Ju Chang, Chih-Jui Lai, Chien-Chen Institute of Molecular Biology National Chung Hsing University Taichung402 Taiwan Department of Biochemical Science and Technology National Chiayi University Chiayi600 Taiwan Department of Molecular Biology and Human Genetics Tzu Chi University Hualien City970 Taiwan Advanced Plant and Food Crop Biotechnology Center National Chung Hsing University Taichung402 Taiwan Graduate Institute of Chinese Medical Science China Medical University Taichung406 Taiwan Doctoral Program in Translational Medicine National Chung Hsing University Taichung402 Taiwan Rong Hsing Translational Medicine Research Center National Chung Hsing University Taichung402 Taiwan

Over the past decades, proteomics has become increasingly important and a heavily discussed topic. The identification of intact proteins remains a major focus in this field. While most intact proteins are analyzed using high-resolution mass spectrometry, identifying them through low-resolution mass spectrometry continues to pose challenges. In our study, we investigated the capability of identifying various intact proteins using collision-induced dissociation (CID) and electron transfer without dissociation (ETnoD). Using myoglobin as our test protein, stable product ions were generated with CID, and the identities of the product ions were identified with ETnoD. ETnoD uses a short activation time (AcT, 5 ms) to create sequential charge-reduced precursor ion (CRI). The charges of the fragments and their sequences were determined with corresponding CRI. The product ions can be selected for subsequent CID (termed CIDn) combined with ETnoD for further sequence identification and validation. We refer to this method as CIDn/ETnoD. The use of a multistage CID activation (CIDn) and ETnoD protocol has been applied to several intact proteins to obtain multiple sequence identifications. © 2024 The Authors. Published by American Chemical Society.

关键词： Dissociation

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Alleviatory effect of isoquercetin on benign prostatic hyperplasia via IGF-1/PI3K/Akt/mTOR pathway

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food science and Human Wellness 2024年第3期13卷 1698-1710页

作者： Young-Jin Choi Meiqi Fan Nishala Erandi Wedamulla Yujiao Tang Eun-Kyung Kim Department of Food Science and Nutrition Dong-A UniversityBusan 49315Republic of Korea Center for Silver-targeted Biomaterials Brain Busan 21 Plus programDong-A UniversityBusan 49315Republic of Korea Department of Health Sciences the Graduate School of Dong-A UniversityBusan 49315Republic of Korea Division of Food Bioscience College of Biomedical and Health SciencesKonkuk UniversityChungju 27478Republic of Korea Department of Export Agriculture Faculty of Animal Science and Export AgricultureUva Wellassa UniversityBadulla 90000Sri Lanka School of Bio-Science and Food Engineering Changchun University of Science and TechnologyChangchun 130600China Nutritional Education Major Graduate School of EducationDong-A UniversityBusan 49315Republic of Korea Nutrinomics Lab.Co. Ltd.Busan 49315Republic of Korea

We evaluated the effect of isoquercetin(quercetin-O-3-glucoside-quercetin,IQ)as a functional component of Abeliophyllum disistichum Nakai ethanol extract(ADLE)on prostate cell proliferation and apoptosis and its effects on the IGF-1/PI3K/Akt/mTOR pathway in benign prostatic hyperplasia(BPH).Metabolites in ADLE were analyzed using UHPLC-qTOF-MS and *** was orally administered(1 or 10 mg/kg)to a testosterone propionate-induced BPH rat model,and its effects on the prostate weight were *** effect of IQ on androgen receptor(AR)signaling was analyzed in LNCaP *** IGF-1 and IQ affect the IGF-1/PI3K/Akt/mTOR pathway in BPH-1 cells was also *** metabolites in ADLE were identified and quantified,which confirmed that ADLE contained abundant IQ(20.88 mg/g).IQ significantly reduced the prostate size in a concentration-dependent manner in a BPH rat model,and significantly decreased the expression of AR signaling factors in the rat prostate tissue and LNCaP cells in a concentration-dependent *** also inhibited the PI3K/AKT/mTOR pathway activated by IGF-1 treatment in BPH-1 *** BPH-1 cells,IQ led to G0/G1 arrest and suppressed the expression of proliferation factors while inducing ***,IQ shows potential for use as a pharmaceutical and nutraceutical for BPH.

关键词： Isoquercetin Benign prostatic hyperplasia Androgen receptor signaling PI3K/Akt/mtor pathway

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Effect of nitrogen sources and fermentation conditions on bacillus sp. R2 chitinase production

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Procedia Manufacturing 2018年 22卷 280-287页

作者： Ben Amar Cheba Taha Ibrahim Zaghloul Ahmad Rafik El-Mahdy Mohamad Hisham El-Massry Department of Biology College of Science Al Jouf University Kingdom of Saudi Arabia (KSA) Department of Biotechnology Faculty of Nature and Life Sciences University of Sciences and Technology of Oran -Mohamed Boudiaf (USTOMB) BP 1505 Al Mnaouar Oran 31000 Algeria Department of Biotechnology Institute of Post Graduate Studies and Research University of Alexandria- Alexandria –Egypt Department of Food Science and Technology-Faculty of Agriculture-University of Alexandria- Alexandria-Egypt

The nutritional and environmental conditions have a great influence on chitinase production, due to the receptor-inducer system that control enzymes *** these sense, the aim of this study was to screen several nitrogen sources and optimize the most important fermentation conditions affecting Bacillus sp. R2 chitinase production. The results of one variable at time technique (OVAT) in shake flasks, revealed that among various nitrogen sources tested 0.5% yeast extract led to maximum production. Furthermore, the highest chitinase activity was detected after 24 h incubation period at temperature of 30C, initial pH: 7.5, 2.5 to 3% NaCl concentration and under 180 rpm shaking using 2.5% (8.9 × 108 CFU/ml) as best inoculum size. These optimizations can reduce the cost of chitinase production for the large scale specially

关键词： Bacillus sp. R2 nitrogen sources chitinase production conditions OVAT optimization

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Kinetics Properties of Marine Chitinase from Novel Red Sea Strain of Bacillus

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Procedia Engineering 2017年 181卷 146-152页

作者： Ben Amar Cheba Taha Ibrahim Zaghloul Mohamad Hisham EL-Massry Ahmad Rafik EL-Mahdy Department of Biotechnology Faculty of Nature and Life Sciences University of Sciences and Technology of Oran -Mohamed Boudiaf (USTOMB) BP 1505 Al Mnaouar Oran 31000 Algeria Department of Biology College of Science AL Juof University Kingdom of Saudi Arabia (KSA) Department of Biotechnology Institute of Post Graduate Studies and Research University of Alexandria Alexandria Egypt Department of Food Science and Technology-Faculty of Agriculture-University of Alexandria- Alexandria-Egypt

An aerobic Gram variable rod shaped polarly flagellated marine bacterium abbreviated R2 attracted our attention not by its hyper chitinolytic activity but also by its multiple enzymes production (protease, gelatinase, lipase, amylase, dextranase,alginase, arabinase, agarase, etc.). This bacterial isolate was selected and identified using conventional methods as well as 16S rRNA technique and submitted in the Gen Bank sequence database as Bacillus sp. R2 with a given accession number DQ 923161. Its purified chitinase showed a molecular weight of 41.68 KDa. Kinetics study revealed that the chitinase exhibited Km, Vmax and Kcat values of 6.971 mg/ml, 69.63 U/ml and 1.815 μcatal for colloidal chitin, 3.334 mg/ml, 83.32 U/ml and 2.172 μcatal for squid chitin respectively. Furthermore the enzyme catalytic efficiency (Kcat/K m ) was estimated to be 0.260 and 0.651 μM *** -1 mol -1 mg -1 S toward colloidal chitin and squid chitin, respectively. This is the first contribution about marine chitinase kinetics study from novel gram variable Bacillus isolated from the Red sea.

关键词： Bacillus sp. R2 16S rRNA identification chitinase purification kinetics

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Bioactive extracts from swartzia latifolia

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Chemical Engineering Transactions 2018年 64卷 211-216页

作者： da Costa, Gilzonia Veloso da Costa, Habdel N. R. dos Santos, Ricardo C. de Melo Filho, Antônio A. Chagas, Edvan A. Montero, Ismael F. Chagas, Pollyana C. de Melo, Ana Cristina G. R. Campus Paricarana Boa Vista-RRCEP 69304-000 Brazil Post-Graduate Program in Chemistry PPGQ Center for Research and Graduate Studies in Science and Technology NPPGCT UFRR and Chemistry Department UFRR Campus Paricarana Boa Vista-RRCEP 69304-000 Brazil National Postdoctoral Program of CAPE associated to POSAGRO/UFRR Campus Cauamé BR 174 s/n Km 12 District Monte Cristo Boa Vista-RRCEP 69310-250 Brazil Embrapa Rodovia 174 Km 8 Industrial District Boa Vista-RRCEP 69301970 Brazil Post Graduate Program in Biodiversity and Biotechnology Bionorte State Coordination of Roraima UFRR Campus Paricarana Boa Vista-RRCEP 69304-000 Brazil Post Graduate in Agronomy POSAGRO UFRR Campus Paricarana Boa Vista-RRCEP 69304-000 Brazil

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Development of a Measurement Software for the Characterization of WORM Devices for Novel Memory Storage Applications

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Journal of Computer and Communications 2018年第9期6卷 1-13页

作者： Mirko Congiu Miguel H. Boratto Paride Pica Carlos F. O. Graeff POSMAT—Post-Graduate Program in Materials Science and Technology School of Sciences UNESP—S&#227 o Paulo State University Bauru SP Brazil Department of Chemistry-Piazzale Aldo Moro University of Rome “La Sapienza” Rome RM Italy Department of Physics School of Sciences UNESP—S&#227 o Paulo State University Bauru SP Brazil

We hereby propose a software solution to perform high quality electrical measurements for the characterization of WORM (write-once read many), a new generation memory device which is being intensively studied for non-volatile data storage. The as-proposed software is completely based on .NET framework and sample C# code. The paper performed a relevant measurement based on this software. Working WORM devices, based on a polymeric matrix embedded with gold and copper sulfide nanoparticles, have been used for test measurements. The aim of this paper is to show the main steps to develop a fully working measurement software without using any expensive dedicated software.

关键词： WORM Memristor Electrical Measurements Memory Devices

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Development of biodegradable food packaging in the context of COVID-19: sustainability more urgent than ever

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Sustainability Nexus Forum 2023年第1期30卷 1-11页

作者： Pinheiro de Souza, Thaiza Serrano Rabelo Vaz Matheus, Julia Salles Barone, Andreza Mota Ferreira, Danielle Cristine Pelissari, Franciele Maria Fai, Ana Elizabeth Cavalcante Food and Nutrition Graduate Program Federal University of the State of Rio de Janeiro (UNIRIO) Rio de Janeiro Brazil School of Agriculture Food and Ecosystem Sciences Faculty of Science The University of Melbourne Melbourne Australia Laboratory of Green Materials Institute of Science and Technology Federal University of Jequitinhonha and Mucuri Valleys (UFVJM) Diamantina Brazil Laboratory of Food Materials Studies Department of Food Technology University of Viçosa (UFV) Viçosa Brazil Laboratory of Multidisciplinary Practices for Sustainability (LAMPS) Department of Basic and Experimental Nutrition Institute of Nutrition State University of Rio de Janeiro (UERJ) Rio de Janeiro Brazil

The indiscriminate overconsumption of non-biodegradable packaging, particularly single-use food packaging, resulting from COVID-19 is exacerbating an age-old environmental problem. This is due to changes in consumer behavior that is concerned with safety issues when buying food, which has led to a preference for purchase in delivery and take-out. In addition, health department agencies indicate the use of disposable products to prevent contamination (e.g., disposable foods; and pre-packaged foods). To date, there is no evidence of SARS-CoV‑2 contamination through food ingestion, however, COVID-19 has raised awareness about packaging for hygienic-sanitary protection of food. This thesis paper discusses arguments from the literature regarding the current development of biodegradable food packaging in the context of COVID-19. It takes an international perspective concerning the impact of the pandemic and correlates it with the changes in current and post-pandemic perspectives. To minimize the impacts related to the increase in the consumption of plastics, there must be a greater investment in research for the development of biodegradable packaging focusing on recyclability. Besides that, there is a necessity to change the type of economy adopted nowadays—that is, the linear economy, to the circular economy.

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