scholarly journals 3D printing materials and their use in medical education: a review of current technology and trends for the future

2017 ◽  
Vol 4 (1) ◽  
pp. 27-40 ◽  
Author(s):  
Justine Garcia ◽  
ZhiLin Yang ◽  
Rosaire Mongrain ◽  
Richard L Leask ◽  
Kevin Lachapelle
Keyword(s):  
3D Printing ◽  
New Technology ◽  
Patient Specific ◽  
Educational Value ◽  
Require Time ◽  
Area Of Interest ◽  
3D Geometry ◽  
The Creation ◽  
New Generation ◽  
Selection Of

3D printing is a new technology in constant evolution. It has rapidly expanded and is now being used in health education. Patient-specific models with anatomical fidelity created from imaging dataset have the potential to significantly improve the knowledge and skills of a new generation of surgeons. This review outlines five technical steps required to complete a printed model: They include (1) selecting the anatomical area of interest, (2) the creation of the 3D geometry, (3) the optimisation of the file for the printing and the appropriate selection of (4) the 3D printer and (5) materials. All of these steps require time, expertise and money. A thorough understanding of educational needs is therefore essential in order to optimise educational value. At present, most of the available printing materials are rigid and therefore not optimum for flexibility and elasticity unlike biological tissue. We believe that the manipuation and tuning of material properties through the creation of composites and/or blending materials will eventually allow for the creation of patient-specific models which have both anatomical and tissue fidelity.

scholarly journals DETERMINATION OF THE GENETICALLY VALUABLE CORN SAMPLES AT THE CREATION OF THE SOURCE MATERIAL FOR THE CORN SELECTION

2016 ◽  
Vol 2 ◽  
pp. 44-50
Author(s):  
Larisa Chernobay
Keyword(s):  
Crop Production ◽  
Source Material ◽  
Artificial Infection ◽  
High Productivity ◽  
The Creation ◽  
New Generation ◽  
Selection Of ◽  
Selection Work

For selection of the lines of new generation were used the donors of tolerance to the disease exciters and introduced the modified methods of artificial infection and selection that allowed create the new source material of corn. There were received 302 lines of UKC (Ukraine, Kharkiv, Chernobay) tolerant to the bubble smut that are characterized with valuable agricultural signs. Among them were separated 21 lines with the high productivity and valuable agricultural signs: UKC 85-2, UKC 80-3, UKC 80-2, UKC 135-2, UKC 155-2, UKC 96, UKC 86, UKC 142, UKC 83, UKC 96-2, UKC 129-2, UKC 164,UKC 83-2, UKC 88-2, UKC 131, UKC 147, UKC 144-2, UKC 167,UKC 164-2, UKC 90-2, UKC 163-2; were created lines with the complex tolerance to the bubble smut and crop moth with the high productivity: UKC 144-2, UKC 167, UKC 164-2, UKC 90-2, UKC 163-2. The UKC lined were included into selection work in the laboratory of selection and seeding of the corn of the Institute of crop production of V. Y. Yuriev, NAAS of Ukraine.

The use of 3D printing technology in the creation of patient-specific facial prostheses

2020 ◽  
Vol 189 (4) ◽  
pp. 1215-1221 ◽  
Author(s):  
Ross G. Sherwood ◽  
Niall Murphy ◽  
Gerard Kearns ◽  
Conor Barry
Keyword(s):  
3D Printing ◽  
Patient Specific ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Facial Prostheses ◽  
The Creation

scholarly journals Precision of computed tomography and cartilage-reproducing image reconstruction method in generating digital model for potential use in 3D printing of patient-specific radial head prosthesis: a human cadaver study

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Suriya Luenam ◽  
Theeraset Bantuchai ◽  
Arkaphat Kosiyatrakul ◽  
Malee Chanpoo ◽  
Kantapat Phakdeewisetkul ◽  
...  
Keyword(s):  
Image Reconstruction ◽  
3D Printing ◽  
Radial Head ◽  
Patient Specific ◽  
Reconstruction Method ◽  
Radial Head Prosthesis ◽  
Image Reconstruction Method ◽  
3D Geometry ◽  
The Difference ◽  
And Cartilage

Abstract Background A prosthetic replacement is a standard treatment for an irreparable radial head fracture; however, the surface mismatch of the commercially available designs is concerned for the long-term cartilage wear. The patient-specific implant created from 3D printing technology could be favorable in replicating the normal anatomy and possibly reduce such sequela. Our study aimed to assess the precision of the computed tomography (CT) and cartilage-reproducing image reconstruction method (CIRM) in generating digital models for potentially use in manufacturing the patient-specific prosthesis from 3D printing. Methods Eight intact  elbows (3 right and 5 left) from 7 formalin-embalmed cadavers (4 males and 3 females) with mean age of 83 years (range, 79–94 years) were used for this study. Computerized 3D models were generated from CT, and CIRM. The cartilage-reproducing image reconstruction method has compensated the cartilage profile based on the distance between the subchondral surfaces of the radial head and surrounding bones in CT images. The models of actual radial head geometry used as the gold standard was generated from CT arthrography (CTA). All models of each specimen were matched by registering the surface area of radial neck along with the tuberosity. The difference of head diameter, head thickness, and articular disc depth among three models was evaluated and analyzed by Friedman ANOVA and multiple comparison test using Bonferroni method for statistical correction. A p-value of less than 0.01 was considered statistically  significant. The difference of overall 3D geometry was measured with the root mean square of adjacent point pairs. Results The analysis displayed the difference of diameter, thickness, and disc depth across the models (p< 0.01). Pairwise comparisons revealed statistically significant difference of all parameters between CTA models and CT models (p< 0.01) whereas no difference was found between CTA models and CIRM models. The mean difference of overall 3D geometry between CTA models and CT models was 0.51±0.24 mm, and between CTA models and CIRM models was 0.24±0.10 mm. Conclusions CIRM demonstrated encouraging results in reestablish the normal anatomy and could be potentially used in production process of 3D printed patient-specific radial head prosthesis.

scholarly journals The Project of Creation of an Aviation Product as a Special Class of Innovation

2021 ◽  
Vol 21 (2) ◽  
pp. 145-153
Author(s):  
I.Z. Mustaev ◽  
◽  
V.Yu. Ivanov ◽  
G.G. Kulikov ◽  
T.I. Mustaev ◽  
...  
Keyword(s):  
New Technology ◽  
Integral Criterion ◽  
Modeling Analysis ◽  
New Gene ◽  
Complex Technology ◽  
The Creation ◽  
New Generation ◽  
Technical Products

The article is devoted to the presentation of the conceptual and categorical apparatus of projects for the creation of complex technical products of a new generation. It is shown that the classification of the projects under consideration creates methodological prerequisites for increasing the accuracy and quality of forecasts of time and resources. It is asserted that in the general set of innovative processes, innovative projects for creating a new generation of aviation products fall into an independent subgroup of innovative projects for creating complex technical objects of a new generation. Allocation of a separate subgroup of projects allows you to form specific methods of modeling, analysis, forecasting and management for them. Materials and methods. Justification is carried out in the form of a logical conclusion. There are four indicators that characterize the design processes. Based on the analysis of the features of the projects for the creation of aircraft products, it was concluded that it is necessary to clarify the set of criteria for projects to create complex equipment of a new generation. For this group of projects, in addition to the existing four criteria of goals, timing, resources and organization of project execution, it is proposed to add a fifth criterion – the criterion of project uncertainty. Result. It is shown that in the aggregate a group of five criteria makes it possible to single out from the whole set of innovative processes associated with the creation of new technology, a subgroup of processes for creating complex technology of a new generation. The differences between the interpretation of uncertainty adopted in the work and the interpretation of uncertainty used in the project analysis as a set of risks accompanying projects are noted. Conclusion. An integral criterion for the magnitude of sociophysical potential has been formed, combining the criteria of goals, timing, resources, organization and uncertainty of innovative projects. An example of the interpretation of the integral criterion for the case of creating a new gene¬ration aircraft product is given.

CONTEMPORARY ASPECTS IN THE SELECTION OF TOOLS AND TECHNOLOGIES FOR DEVELOPING WEB SITES

2018 ◽  
pp. 125-131
Author(s):  
Petar Halachev ◽  
Aleksandra Todeva ◽  
Gergana Georgieva ◽  
Marina Jekova
Keyword(s):  
Programming Languages ◽  
Web Sites ◽  
Web Site ◽  
Work Process ◽  
Design And Development ◽  
Site Development ◽  
Complicated Process ◽  
The Creation ◽  
Guidelines And Recommendations ◽  
Selection Of

he report explores and analyzes the application of the most popular programming languages from different organizations: GitHub; Stackoverflow; the TIOBE's Community index. The main client technologies: HTML; CSS; JavaScript; Typescript are presented and analysed. Features are characterized and the advantages and the disadvantages of the server technologies are described: Java; PHP; Python; Ruby. The application areas for web site development technologies have been defined. The creation of a quality web site is a complex and complicated process, but by observing some guidelines and recommendations in the work process can help to select the tools and the technologies in its design and development.

Bifluoride Ion Mediated SuFEx Trifluoromethylation of Sulfonyl Fluorides and Iminosulfur Oxydifluorides

2018 ◽  
Author(s):  
Christopher J. Smedley ◽  
Bing Gao ◽  
Suhua Li ◽  
Qinheng Zheng ◽  
Andrew Molino ◽  
...  
Keyword(s):  
Breast Cancer Cells ◽  
Catalytic Mechanism ◽  
Bioactive Molecules ◽  
Chromatographic Purification ◽  
Rapid Exchange ◽  
Nucleophilic Displacement ◽  
Sulfur Fluoride ◽  
Reactions With Nucleophiles ◽  
New Generation ◽  
Selection Of

Sulfur-Fluoride Exchange (SuFEx) is the new generation click chemistry transformation exploiting the unique properties of S-F bonds and their ability to undergo near-perfect reactions with nucleophiles. We report here the first SuFEx based protocol for the efficient synthesis of pharmaceutically important triflones and bis(trifluoromethyl)sulfur oxyimines from the corresponding sulfonyl fluorides and iminosulfur oxydifluorides, respectively. The new protocol involves the rapid exchange of the S-F bond with trifluoromethyltrimethylsilane (TMSCF<sub>3</sub>) upon activation with potassium bifluoride in anhydrous DMSO. The reaction tolerates a wide selection of substrates and proceeds under mild conditions without need for chromatographic purification. A tentative catalytic mechanism is proposed supported by DFT calculations, involving formation of the free trifluoromethyl anion followed by nucleophilic displacement of the S-F through a five-coordinate intermediate. The preparation of a benzothiazole derived bis(trifluoromethyl)sulfur oxyimine with cytotoxic selectivity for MCF7 breast cancer cells demonstrates the utility of this methodology for the late-stage functionalization of bioactive molecules.<br>

Phytocenotic selection of perennial grasses as a factor of increasing the productivity of mixed agrophytocenoses

2020 ◽  
Author(s):  
V.N. Zolotarev ◽  
◽  
I.S. Ivanov ◽  
O.N. Lyubtseva
Keyword(s):  
Perennial Grasses ◽  
New Varieties ◽  
The Creation ◽  
High Yields ◽  
Selection Of

Based on the analysis of data available in the literature and our own experimental material on phytocenotic selection of the stony stalk (Bromopsis inermis Holub.) the important role of competition between plants in the field for the creation of new varieties of perennial grasses that provide high yields of feed polyvid agrophytocenoses is shown.

Highlights From Gastro Update Europe2019 - Budapest - June 14-16, 2019 145

2019 ◽  
pp. 145-160
Author(s):  
Guido N. J. Tytgat
Keyword(s):  
Expert Opinion ◽  
Narrative Review ◽  
Educational Value ◽  
Vital Importance ◽  
Selection Of

This narrative review summarizes a selection of recent, clinically-important novel gastrointestinal developments, presented and discussed at the European Gastro Update In Budapest. The selected topics reflect what the distinguished faculty considered of vital importance to be communicated to the astute busy gastro-hep clinician, who is eager to stay well informed of important novel developments in his discipline. Whenever appropriate a personal comment or addition was added to further raise the educational value of this review. Given its narrative character, statements and conclusions are largely expert opinion-based and referencing is limited to the selected images.

Stock Watcher Application using Google Web Toolkit

2020 ◽  
Author(s):  
Akhilesh Kumar Kondoju ◽  
Revanth Reddy Kontham ◽  
Jinan A. Fiaidhi
Keyword(s):  
Programming Language ◽  
Web Site ◽  
New Technology ◽  
Prototype Model ◽  
Random Data ◽  
The Creation

<div>A simple stock watcher based on Google Web Toolkit (GWT) as the new technology in the creation of rich AJAX applications using only Java as the programming language, which is later on compiled into pure JavaScript and deployed as a regular web site. The user is able to know and manage stock watcher to be</div><div>updated with the latest changes in stock. We used random data as input as it is a prototype model.</div>

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