2021 International Symposium on Biomedical Engineering and Computational Biology最新文献

{"title":"Analysis of the Organic Content in Two Hybrid Calcium-Silicate Cements","authors":"Desislava Tsanova-Tosheva, I. Dimitrova, Y. Kouzmanova","doi":"10.1145/3502060.3502276","DOIUrl":"https://doi.org/10.1145/3502060.3502276","url":null,"abstract":"To overcome the manipulation disadvantages in contemporary bioactive materials, their composition has been changed and hybrid calcium-silicate cements were created. TheraCal LC (BISCO) and BioCal-Cap (Harvard Dental International, Germany) are the subject of this study. These direct pulp capping materials contain Portland cement and organic phase. This study aims to make a quantitative and qualitative analysis of the organic content of these cements. The methods for the uncured samples were gas-chromatography and mass-spectrometry SCAN mode; thermogravimetry – for the light-cured samples, gas-chromatography and mass-spectrometry SCAN mode; thermogravimetry – for the light-cured samles, gas-chromatography and mass – spectrometry SIM mode - for solventa extraction from light-cured samples. The observation of the uncured TheraCal identifies polymerization initiators – camphoroquinone, parbenate but no free monomers. A reason for that might be the presence of prepolymers that cannot pass into the gas phase. BoiCal-Cap is a new (2019) and noninvestigated material. Our investigations of BioCal-Cap reveal the main organic component – HEMA. Other chemicals were also detected. There was no free HEMA in light-cured samples. The thermogravimetric analysis of the light-cured TheraCal shows 3 mass loss and no loss for BioCal-Cap. The results reveal that BioCal-Cap might have positive advantages for the success of direct pulp capping and more investigations should be performed to support this statement.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133257911","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":"Video Analysis of Human Gait: Advantages and Disadvantages in Neurological Diagnostics","authors":"M. Abroskina, V. Ondar, S. Ismailova, S. Subocheva, A. Khomchenkova, V. Gurevich, S. Kondratiev, E. Mozheyko, S. Prokopenko","doi":"10.1145/3502060.3503622","DOIUrl":"https://doi.org/10.1145/3502060.3503622","url":null,"abstract":"This article considers the possibility of clinical evaluation of gait parameters via application of a non-contact method: human movement video analysis. Patterns of gait impairment against the background of central nervous system pathology vary. We made an attempt to determine clinical features of gait impairment against the background of ataxia, hemiparetic gait and Parkinson's disease (PD). The study involved application of Vicon Motion Capture Systems. Tempo-rhythmic characteristics of gait during the stride were determined, the data on angular indices of lower extremity movement in hip, knee and ankle joints were obtained. General changes in the gait parameters in all patients were found: decrease in the gait tempo, gait velocity, the length of the stride and the step, increase in the time of the stride and the step. Among the technical advantages of the method is the possibility of separate assessment of tempo-rhythmic indices for the right and the left lower limbs. Very frequently, pathological changes in PD, the syndrome of central hemiparesis and ataxia only affect one half of the body. This let us objectively evaluate the degree of asymmetry during movement. The following peculiarities were revealed: the left-sided hemiataxia patient demonstrated a later lift of the intact foot from the support surface. The patient with right-sided hemiparesis showed increased time of single support on the paretic right limb. The patient with PD stage 3.0 according to the Hoehn and Yahr scale was observed to have bilateral symptoms, but with certain asymmetry of the right-sided manifestations. Analysis of angular parameters of gait in patients with neurological pathology revealed asymmetry of flexion/extension in the hip, knee and ankle joints in comparison with a healthy person. As a result of the study, peculiarities in gait stereotype alteration against the background of neurological syndromes have been determined. We recommend application of the method of three-dimensional video analysis of movements in expert assessment of gait function impairment.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134362972","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":"A comparison of different Machine Learning algorithms for predicting the length of hospital stay for patients undergoing cataract surgery","authors":"A. Scala, Teresa Angela Trunfio, A. Lombardi, Cristiana Giglio, A. Borrelli, M. Triassi","doi":"10.1145/3502060.3503647","DOIUrl":"https://doi.org/10.1145/3502060.3503647","url":null,"abstract":"The advancement of surgical techniques, the use of new drug therapies and the introduction of innovative medical devices have brought excellent results in all surgical disciplines, including Ophthalmology. This development, however, takes place in a difficult economic and financial context, especially for Italy, the reference country for this study. In this context, being able to obtain as standardized procedures as possible helps to provide a more appropriate response by maximizing the use of available resources. A parameter used in the literature is the Length of Stay (LOS). In this study, Machine Learning algorithms were used to build a classifier capable of predicting the total LOS of patients who undergone a surgery for the exportation of the natural crystalline lens with phacoemulsification starting from a set of independent variables. Random Forest proved to be the best algorithm for this application with an accuracy of over 90%.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114417479","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":"Investigation of the risk of surgical infections at the “Federico II” University Hospital by regression analysis using the Firth method","authors":"E. Montella, I. Loperto, M. Pietrantonio, Vincenza Colucci, M. Triassi, A. M. Ponsiglione","doi":"10.1145/3502060.3503649","DOIUrl":"https://doi.org/10.1145/3502060.3503649","url":null,"abstract":"Surgical infections (SSIs) are among the most common type of healthcare associated infections (HAIs) and a major cause of morbidity among surgical patients, increase of hospitalization days and of healthcare expenditure In this work, we present a logistic regression model to study the impact that different clinical, demographic and organizational factors have on the risk of occurrence of HAIs in a surgery department. The proposed model regression model is based on the Firth's penalized maximum likelihood logistic regression, a well-suited methodology for the analysis of unbalanced datasets, such as those related to events with a low occurrence rate, which is often the case of hospital infections. The model proved to be able to identify the factors most influencing the risk of SSIs and offers a promising tool for the systematic study of SSIs.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115869731","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":"Overcrowding in emergency department: a comparison between indexes","authors":"G. Improta, Ylenia Colella, Antonio Della Vecchia, A. Borrelli, Giuseppe Russo, M. Triassi","doi":"10.1145/3502060.3503643","DOIUrl":"https://doi.org/10.1145/3502060.3503643","url":null,"abstract":"The overcrowding of the Emergency Department (ED) represents one of the main problems to be faced with the aim to enhance the services offered in emergency situations and their quality. As a consequence, to assist the patients and the professionals involved, the hospital structures must put in place corrective and preventive actions. Overcrowding has a variety of effects, including poor care and longer hospital stays; consequently, mortality rises and so does the average length of hospitalization in intensive care units. A variety of indices have been exploited in the literature to assess the ED congestion. In this work a comparison between the EDWIN Index and the NEDOCS one was made in order to evaluate their effectiveness.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125981290","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":"Performance Evaluation of Extreme Learning Machines Classification Algorithm for Medical Datasets","authors":"O. A. Alade, R. Sallehuddin, N. Radzi","doi":"10.1145/3502060.3502156","DOIUrl":"https://doi.org/10.1145/3502060.3502156","url":null,"abstract":"The choice of efficient algorithms is a critical issue in the classification of medical datasets. This requires the consideration of a number of measures to ensure reliable results. In this study, the robustness of Extreme Learning Machine (ELM) and some state-of-arts classifiers were investigated on six (6) different (complete and incomplete) medical datasets. Multiple imputation technique with 5-fold-iteration was used to address the issue of missing data points in datasets with holes. The technique regenerated the missing values 100% in all the datasets. The performance of ELM was compared with Support Vector Machine (SVM), k-Nearest Neighbour (KNN) and Classification and Regression Tree (CART) on the complete and imputed datasets. The evaluations were based on classification accuracy, computational time and stability of the algorithms. ELM has 83.33% overall best accuracy, and 100% best computational time of the simulations. However, the stability of ELM is subject to further improvement, which is an area of further research.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127786261","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":"Appropriate admission in Covid-19 era: the case study of the C.O.U. Neurology and Stroke Unit","authors":"I. Loperto, A. Scala, R. Alfano, Teresa Angela Trunfio, Cristiana Giglio, Giovanni Rossi, A. Borrelli, M. Triassi, G. Improta","doi":"10.1145/3502060.3503656","DOIUrl":"https://doi.org/10.1145/3502060.3503656","url":null,"abstract":"Hospital services absorb almost half of the costs of the health sector; therefore, it is necessary to promote the effectiveness, efficiency and appropriateness of the services provided. These concepts become even more important in the era of the CoViD-19 pandemic, where the efforts made to manage it have absorbed all hospital resources. Inappropriate hospitalization and length of stay (LOS) are the factors that impose higher costs on hospitals. This study analyzed how CoViD-19 changed the activity of the Department of Neurology and Stroke Unit of the \"San Giovanni di Dio e Ruggi d'Aragona\" University Hospital of Salerno (Italy). Logistic regression showed a significant increase in relative Diagnosis Related Group (DRG) weight which translates into greater appropriateness of admission diagnoses.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132858416","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":"Is violet LED light-based PDT efficient to treat superficial lesions such as a low-grade cervical intraepithelial neoplasia?","authors":"Maria E. Etcheverry, M. Pasquale, M. Garavaglia","doi":"10.1145/3502060.3502321","DOIUrl":"https://doi.org/10.1145/3502060.3502321","url":null,"abstract":"Photosensitizers utilized in photodynamic therapy (PDT) can be exited with light of any wavelengths matching their absorption bands. Thus, superficial lesions, such as those involved in cervical intraepithelial neoplasias (CINs) might be treated with a light of shorter wavelength than red despite the smaller penetration depth in tissue. We review basic aspects of PDT and some investigations related to the use of light-emitting diodes (LEDs) of different wavelength mainly applied to superficial lesions, and highlight the benefits of the use of violet light and cellular spheroids as a PDT dosage model. Our previous results from spheroids of cervix carcinoma cells, suggest that the violet light from a LED source is appropriate for performing PDT of neoplastic lesions involving about 300 μm in depth. In this work we present a high fluence light source emitting at 420 nm and apply it to perform PDT treatment of a HeLa cell tumor model implanted in BALB/c nude mice. The photodynamic reaction is inferred from the fluorescence evolution measured at the tumor and the temperature evolution of the treated surface. Violet LED light could be a promising alternative for treating CINs involving superficial dysplasia, with reduced side effects.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132359665","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":"Analysis of the adequacy of admissions in a Complex Operative Unit of General Surgery and Day Surgery and Breast Unit","authors":"I. Loperto, A. Scala, A. Borrelli, Giovanni Rossi, M. Triassi","doi":"10.1145/3502060.3503658","DOIUrl":"https://doi.org/10.1145/3502060.3503658","url":null,"abstract":"Hospital admissions and surgical activities have undergone substantial changes due to the spread of the coronavirus 19 (CoViD-19) pandemic. To date, however, there are in increasingly number studies that have quantified the effect of the pandemic and its protocols on hospital activity. Unlike other studies, which identify protocols for the containment of infections, in this study, logistic regression and statistical analysis were used to evaluate the type of patients admitted to the Complex Operative Unit (COU) of General Surgery and Day Surgery and Breast Unit in \"San Giovanni di Dio and Ruggi d'Aragona\" University Hospital of Salerno (Italy) in CoViD-19 era. Specifically, the aim is to study how hospitalized patients has changed by investigating the relative parameters extracts from hospital discharge forms, comparing year 2019 and year 2020. The result shows that in year 2020, the weight of Diagnostic Related Group (DRG) was significantly higher and it highlighted an increased use of the emergency hospitalization.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123386116","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":"Knowledge, attitudes, and practices of Jordanians towards the relationship between food and immunity during the COVID-19 era","authors":"D. Sweidan, Hiba F. Al-Sayyed","doi":"10.1145/3502060.3503641","DOIUrl":"https://doi.org/10.1145/3502060.3503641","url":null,"abstract":"A diet with specific variety of food and drinks enhances physical condition, prevents disease, and assists in keeping an individual mentally and physically healthy. The global pandemic of coronavirus disease -2019 (Sars-Cov-2/Covid-19) has highlighted public awareness of the importance of eating a nutritious diet to boost immune defenses. This study aimed at exploring the awareness of Jordanian population on the relationship between food intake and immunity. A cross-sectional design was used to achieve the aim of this investigation. The study targeted Jordanian population (including 1024 participants residing in all Jordanian governorates). Awareness of Jordanians was tested via a questionnaire that was validated and tested for reliability (internal consistency). The awareness is usually indicated by knowledge, attitudes, and practices. The questionnaire was developed and introduced in the Arabic language to accommodate Jordanian culture. Results of this investigation showed that the survey tool was valid and reliable (Cronbach's-alpha value = 0.842). The mean, median, and mode values for awareness score are ∼51, 52, and 56 out of 70 indicating very good awareness of Jordanian population towards the relationship between food intake and immunity. It is recommended to translate the survey tool used in this investigation into other languages and validate it. In addition, it is recommended to consume healthy foods of Jordanian culture to boost immunity. Furthermore, it is recommended to increase awareness regarding the correct and fad information as well as the importance of vaccination role on immunity via educators and family, health care team members, magazines and newspapers, and social media.","PeriodicalId":193100,"journal":{"name":"2021 International Symposium on Biomedical Engineering and Computational Biology","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126253641","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}