The Significance of Computer Modeling and 3D Printing Technology for Facial Ectoprosthetics

The integration of information technologies in healthcare practice significantly changes the methods of diagnosis and treatment, the forms of interaction of doctors with patients and colleagues, the organization of treatment and recovery of health. The field of reconstruction of the auricle is still a huge challenge for facial plastic surgeons and requires at various techniques to find the best treatment for each patient. The paper describes the application of computer modeling and laser stereolithography technology in surgical practice for auricular surfaces ectoprosthetics. To improve the accuracy and quality of the surgical intervention the positioning of external prosthesis is applied with the aid of personal templates and computer navigation. The accuracy of ectoprosthesis positioning when using a plastic mask template was 0.3-0.4 mm, while computer navigation was 0.1 - 0.2 mm. Using personalized templates is a simpler and more intuitive way of positioning that does not require expensive computer navigation systems. This example of ectoprosthetics shows the possibilities of various reconstructions of facial organs, not only the ear, but also, for example, the nose, using computer modeling and 3d printing technologies

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Trends in management practice for tourism destinations

Universities for Tourism and Service Association Bulletin ◽

10.12737/7939 ◽

2015 ◽

Vol 9 (1) ◽

pp. 21-27 ◽

Cited By ~ 4

Author(s):

Татьяна Харитонова ◽

Tatyana Kharitonova ◽

Ольга Вапнярская ◽

Olga Vapnyarskaya ◽

Татьяна Кривошеева ◽

...

Keyword(s):

Information Technologies ◽

Management Practice ◽

Tourism Industry ◽

Navigation Systems ◽

Tourist Destinations ◽

Tourism Product ◽

Related Development ◽

Important Trend ◽

The Subject

Management of tourist destinations abroad over many years is the subject of research and practical elaborations. The key aim of destination management is ensuring its competitiveness. To achieve this goal, experts offer a variety of approaches, methods, mechanisms. Based on the composition of the management system for tourist destinations, the article presents the trends in this field which are pertinent to Russia. First of all, to such trends can be related development of tourist resources as creation and promotion of conceptual tourist resources. A relatively new trend is the development of private and corporate museums. To Russian trends in destination management can be attributed integration of tourist sites in the tourism industry due to a more comprehensive utilization of tourist technologies in display and interpretation. Of course, an important trend is the development of information technologies in tourism, tourist navigation systems. To the list of trends should be added diversification of tourism products of destinations through the development of new types of tourism. The article shows the transition to the tourism product customization by offering tourists the opportunity to form desired tour packages. The article presents the results of the analysis of governance in the management of tourist destinations. The article substantiates the conclusion that tourist destinations are transformed from usual tourist regions into territorial structural units of the tourism industry, with extensive capabilities to meet diverse needs of tourism; resulting in: development of new types of tourism and forming conceptual tourism products; improvement of tourism infrastructure, including its information and service components; improving the quality of services provided. For businesses also uncover some opportunities in terms of entrepreneurial initiatives.

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APPLICATION OF COMPUTER MODELING AND 3D-PRINTING TECHNOLOGIES IN THE DIAGNOSIS AND TREATMENT OF PATIENTS WITH MIDFACIAL FRACTURES

The actual problems in dentistry ◽

10.18481/2077-7566-20-17-2-84-88 ◽

2021 ◽

Vol 17 (2) ◽

pp. 84-88

Author(s):

Timur Abdulkerimov ◽

Yuliya Mandra ◽

Khiyir Abdulkerimov ◽

Zamir Abdulkerimov ◽

Yuriy Boldyrev ◽

...

Keyword(s):

3D Printing ◽

Computer Modeling ◽

Primary Diagnosis ◽

Social Adaptation ◽

Diagnosis And Treatment ◽

Facial Skeleton ◽

Duration Of Treatment ◽

Area Of Interest ◽

Social Rehabilitation

Today, 16% of all traumatic injuries occur in the area of the facial skeleton. The social-economic component of this problem is also important, because in most cases such injuries are received by representatives of the able-bodied population [4]. The area of interest requires special attention due to the proximity of vital anatomical structures, as well as its aesthetic significance, which will determine the quality of social rehabilitation of patients with craniofacial injuries, especially the midfacial region. The complexity of the facial skeleton structures, massive vascularization and innervation of the craniofacial region in many cases are the causes of difficulties in the diagnosis and treatment processes in patients with facial injuries, which negatively affects the quality of medical care and further rehabilitation, social adaptation [1-25]. Introduction of digital technologies such as computer modeling and 3D-printing into the processes of diagnosis and treatment in patients with craniofacial fractures allows minimizing the number of possible mistakes even at the stage of primary diagnosis, planning the upcoming surgical intervention and modeling a high-precision individualized augment for replacing bony defects [8]. Digitalization of diagnostic and treatment procedures will, in turn, bring the accuracy of the reconstruction to a fundamentally new level, reduce the duration of treatment and rehabilitation, including social rehabilitation [4]. The article presents the results of a comparative analysis of the traditional algorithm for diagnosing and treating maxillary fractures in region of orbital floor using a standard titanium mesh, as well as its improved version, improved by the use of 3D modeling and printing technologies.

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COMPUTER MODELING OF FINANCIAL CALCULATIONS

Informatics and Education ◽

10.32517/0234-0453-2019-34-4-33-37 ◽

2019 ◽

pp. 33-37

Author(s):

O. S. Korneva

Keyword(s):

Computer Modeling ◽

Professional Education ◽

Information Technologies ◽

Financial Education ◽

Economic Education ◽

Economic Activities ◽

School Teachers ◽

University Teachers ◽

Educational Literature ◽

Higher Professional Education

Within the implementation of the national strategy for improving financial competency and financial education in Russia, aimed at the broad masses of the population, any experience in promoting financial competency among young people, accumulated in the system of training bachelors of Economics, will be useful. The purpose of the article is to present the methodological and practical aspects of teaching the basics of financial calculations of future economists and the formation of computer modeling skills in the field of financial and economic activity. The reason for writing the article was the problem of interdisciplinary integration in the system of financial and economic education. The analysis of educational literature and curricula of the system of secondary and higher professional education, as well as the study and generalization of pedagogical experience showed weak integration of mathematical and economic disciplines with information technologies. The article also presents the problems associated with the calculations in the financial and economic activities with the use of computer modeling. The elements of the presented methods of teaching the basics of financial computing in conjunction with the modeling of financial problems on the computer can be useful for both school teachers and university teachers of mathematics and computer science.

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Current Requirements of the Society to the Professional Training of Specialists in Information Technology Industry in Japan

Comparative Professional Pedagogy ◽

10.2478/rpp-2014-0024 ◽

2014 ◽

Vol 4 (2) ◽

pp. 84-89

Author(s):

Inna Pododimenko

Keyword(s):

Higher Education ◽

Labour Market ◽

Communication Technology ◽

Information Technologies ◽

Professional Training ◽

Professional Competence ◽

Information Communication Technology ◽

Information Communication ◽

Quality Of Higher Education

Abstract The problem of professional training of skilled human personnel in the industry of information communication technology, the urgency of which is recognized at the state level of Ukraine and the world, has been considered. It has been traced that constantly growing requirements of the labour market, swift scientific progress require the use of innovative approaches to the training of future ІТ specialists with the aim to increase their professional level. The content of standards of professional training and development of information technologies specialists in foreign countries, particularly in Japan, has been analyzed and generalized. On the basis of analysis of educational and professional standards of Japan, basic requirements to the engineer in industry of information communication technology in the conditions of competitive environment at the labour market have been comprehensively characterized. The competencies that graduate students of educational qualification level of bachelor in the conditions of new state policy concerning upgrading the quality of higher education have been considered. The constituents of professional competence in the structure of an engineer-programmer’s personality, necessary on different levels of professional improvement of a specialist for the development of community of highly skilled ІТ specialists, have been summarized. Positive features of foreign experience and the possibility of their implementation into the native educational space have been distinguished. Directions for modernization and upgrading of the quality of higher education in Ukraine and the prospects for further scientific research concerning the practice of specialists in information technologies training have been suggested

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Effectiveness of the Chiari Health Index for Pediatrics instrument in measuring postoperative health-related quality of life in pediatric patients with Chiari malformation type I

Journal of Neurosurgery Pediatrics ◽

10.3171/2020.7.peds20250 ◽

2020 ◽

pp. 1-6

Author(s):

Georgina E. Sellyn ◽

Alan R. Tang ◽

Shilin Zhao ◽

Madeleine Sherburn ◽

Rachel Pellegrino ◽

...

Keyword(s):

Surgical Intervention ◽

Type I ◽

Health Related Quality ◽

Health Index ◽

Chiari Malformation Type I ◽

Related Quality ◽

Health Related ◽

Over Time

OBJECTIVEThe authors’ previously published work validated the Chiari Health Index for Pediatrics (CHIP), a new instrument for measuring health-related quality of life (HRQOL) for pediatric Chiari malformation type I (CM-I) patients. In this study, the authors further evaluated the CHIP to assess HRQOL changes over time and correlate changes in HRQOL to changes in symptomatology and radiological factors in CM-I patients who undergo surgical intervention. Strong HRQOL evaluation instruments are currently lacking for pediatric CM-I patients, creating the need for a standardized HRQOL instrument for this patient population. This study serves as the first analysis of the CHIP instrument’s effectiveness in measuring short-term HRQOL changes in pediatric CM-I patients and can be a useful tool in future CM-I HRQOL studies.METHODSThe authors evaluated prospectively collected CHIP scores and clinical factors of surgical intervention in patients younger than 18 years. To be included, patients completed a baseline CHIP captured during the preoperative visit, and at least 1 follow-up CHIP administered postoperatively. CHIP has 2 domains (physical and psychosocial) comprising 4 components, the 3 physical components of pain frequency, pain severity, and nonpain symptoms, and a single psychosocial component. Each CHIP category is scored on a scale, with 0 indicating absent and 1 indicating present, with higher scores indicating better HRQOL. Wilcoxon paired tests, Spearman correlations, and linear regression models were used to evaluate and correlate HRQOL, symptomatology, and radiographic factors.RESULTSSixty-three patients made up the analysis cohort (92% Caucasian, 52% female, mean age 11.8 years, average follow-up time 15.4 months). Dural augmentation was performed in 92% of patients. Of the 63 patients, 48 reported preoperative symptoms and 42 had a preoperative syrinx. From baseline, overall CHIP scores significantly improved over time (from 0.71 to 0.78, p < 0.001). Significant improvement in CHIP scores was seen in patients presenting at baseline with neck/back pain (p = 0.015) and headaches (p < 0.001) and in patients with extremity numbness trending at p = 0.064. Patients with syringomyelia were found to have improvement in CHIP scores over time (0.75 to 0.82, p < 0.001), as well as significant improvement in all 4 components. Additionally, improved CHIP scores were found to be significantly associated with age in patients with cervical (p = 0.009) or thoracic (p = 0.011) syrinxes.CONCLUSIONSThe study data show that the CHIP is an effective instrument for measuring HRQOL over time. Additionally, the CHIP was found to be significantly correlated to changes in symptomatology, a finding indicating that this instrument is a clinically valuable tool for the management of CM-I.

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The influence of unintentional radio interference on the equipment operation quality of satellite radio navigation systems consumers

Automation. Modern Techologies ◽

10.36652/0869-4931-2020-74-4-165-170 ◽

2020 ◽

pp. 165-170

Keyword(s):

Underlying Surface ◽

Navigation Systems ◽

Signal Attenuation ◽

Radio Navigation ◽

Equipment Operation ◽

Atmospheric Noise ◽

Detection Mode ◽

Signal Mode ◽

Cosmic Noise

The analysis an influence of reflections from the underlying surface, atmospheric noise, the Earth’s surface, cosmic noise and signal attenuation of the signal the atmosphere, as well as the flight dynamics of the aircraft (AC) on the signal/noise ratio and, accordingly, on the accuracy of AC navigation definitions by using consumer equipment of the satellite radio navigation systems. The analysis an influence of reflections from the underlying surface on the equipment operation quality of the satellite radio navigation systems consumers is carried out by using the Beckman model, in accordance with the earth’s surface appears to consist of flat faces with an arbitrary slope. It is noted that reflections from the underlying surface have a greater effect on the quality of functioning of the consumer equipment of the satellite radio navigation systems in the tracking signal mode than in the detection mode. In this case, the influence of reflections increases with decreasing flight altitude and an increase in the angle of heel of the AC in the direction of the navigation spacecraft.

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О ТОЧНОСТИ ОПРЕДЕЛЕНИЯ КООРДИНАТ ПОДВОДНОГО МОДУЛЯ НА ОСНОВЕ ИЗМЕРЕННЫХ ПАРАМЕТРОВ ДВИЖЕНИЯ БУКСИРУЕМОЙ СИСТЕМЫ

Podvodnye issledovaniia i robototehnika ◽

10.37102/24094609.2020.31.1.003 ◽

2020 ◽

Author(s):

V.V. Kostenko ◽

Yu.V. Vaulin ◽

F.S. Dubrovin ◽

O.Yu. Lvov

Keyword(s):

Immersion Depth ◽

Computational Algorithms ◽

Navigation Systems ◽

Short Baseline ◽

Positioning Accuracy ◽

Underwater Acoustic ◽

Ground Speed ◽

Cable Length ◽

Acoustic Navigation

Буксируемый подводный модуль (БПМ) эффективно используется для решения задач, связанных с координированием подводных объектов, местоположение которых подлежит уточнению в процессе их детальногообследования. При этом большое значение имеет точность определения координат самого буксируемогомодуля относительно судна-буксировщика. Использование гидроакустических навигационных средств, вчастности систем с ультракороткой базой (ГАНС УКБ), ограничено вследствие помех, влияющих на качествосигналов в приемной антенне. Альтернативой служит метод определения координат БПМ на основе данныхтраекторных измерений параметров буксируемой системы. К числу последних относятся расчетные значенияпараметров кабеля связи в установившихся режимах буксировки, значения путевой скорости и путевого углабуксировщика, а также измеренные значения длины кабеля, глубины погружения и курса БПМ. В работе дансравнительный анализ различных вариантов вычислительных алгоритмов, позволяющих получить оценки точности определения координат БПМ в различных режимах стационарной буксировки и при наличии сбоев вработе навигационных средств.The towed underwater module (TUM) is a useful toolfor solving problems of the positioning of the underwaterobjects, the location of which must be clarified during its detailedinspection. Herewith, the accuracy of the determinationof the coordinates of the towed module itself relative tothe towing vessel is essential for such kind of problems. Theuse of underwater acoustic navigation means, the systemswith ultra-short baseline (USBL) in particular, are limiteddue to interference affecting the quality of the signals on thereceiving antenna. As an alternative, the method is proposedfor TUM positioning based on trajectory measurements ofparameters of the towed system, which may include calculatedvalues of communication cable parameters in steadystatetowing modes, values of ground speed and towing angle,as well as measured cable length, immersion depth, andTUM heading. The paper provides a comparative analysisof various versions of computational algorithms, which allowobtaining estimates of the TUM positioning accuracy indifferent modes of stationary towing and in the presence offailures in navigation systems operation.

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Biomimetic Design of 3D Printed Tissue-engineered bone Constructs

Current Nanoscience ◽

10.2174/1573413716999201022191909 ◽

2020 ◽

Vol 16 ◽

Author(s):

Wei Liu ◽

Shifeng Liu ◽

Yunzhe Li ◽

Peng Zhou ◽

Qian ma

Keyword(s):

Tissue Engineering ◽

3D Printing ◽

Advanced Materials ◽

Bionic Design ◽

Material Interfaces ◽

Precise Control ◽

Cell Printing ◽

Biomimetic Scaffolds ◽

3D Printed

Abstract:: Surgery to repair damaged tissue, which is caused by disease or trauma, is being carried out all the time, and a desirable treatment is compelling need to regenerate damaged tissues to further improve the quality of human health. Therefore, more and more research focus on exploring the most suitable bionic design to enrich available treatment methods. 3D-printing, as an advanced materials processing approach, holds promising potential to create prototypes with complex constructs that could reproduce primitive tissues and organs as much as possible or provide appropriate cell-material interfaces. In a sense, 3D printing promises to bridge between tissue engineering and bionic design, which can provide an unprecedented personalized recapitulation with biomimetic function under the precise control of the composition and spatial distribution of cells and biomaterials. This article describes recent progress in 3D bionic design and the potential application prospect of 3D printing regenerative medicine including 3D printing biomimetic scaffolds and 3D cell printing in tissue engineering.

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