scholarly journals Importance of Photography Education to Improve Image Quality for Accurate Remote Diagnoses in Dental Trauma Patients: Observational Study

10.2196/15152 ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. e15152
Author(s):  
Jin-Sun Jeong ◽  
Nan-Sim Pang ◽  
Yiseul Choi ◽  
Kyeong-Mee Park ◽  
Taekbin Kim ◽  
...  
Keyword(s):  
Cell Phone ◽  
Dental Trauma ◽  
Trauma Patients ◽  
Remote Diagnosis ◽  
High Quality ◽  
Improve Image Quality ◽  
Anterior Teeth ◽  
A Cell ◽  
Photography Education

Background High-quality photos are critical for the remote diagnosis of dental trauma and thus are beneficial to the prognosis. The quality of the images obtained using a cell phone depends on the level of dental and photography knowledge of the person who is taking the photos. Objective This study aimed to determine the efficacy of photography education in improving images used for the remote diagnosis of dental trauma. Methods The subjects comprised 30 laypeople and 30 dentists who were randomly assigned to 15 subgroups with 2 subjects in each. Each subject was asked to take photos of their own anterior teeth and those of their partner on the assumption that an accident occurred using both an iPhone 4s and iPhone 6. Education about how to take an appropriate photo of the anterior teeth for teleconsultation purposes was then provided, after which photos were taken again. Photos were assessed by a dentist for their usefulness in diagnosis. Results This study analyzed 965 photos: 441 taken by laypeople and 524 taken by dentists. Photos taken after providing education had significantly higher scores for all assessment items than those taken before education (P<.05). The scores were also significantly higher for photos taken using the rear camera than those taken using the front camera (P<.02). The iPhone 6 did not have overwhelming advantages. The photos taken by dentists had significantly higher scores than those taken by laypeople for most of the evaluated items. Conclusions Both laypeople and dentists might find photography education useful for when they are taking photos to be used in teleconsultations. The type of cell phone does not significantly affect the usefulness of such photos.

scholarly journals Importance of Photography Education to Improve Image Quality for Accurate Remote Diagnoses in Dental Trauma Patients: Observational Study (Preprint)

2019 ◽  
Author(s):  
Jin-Sun Jeong ◽  
Nan-Sim Pang ◽  
Yiseul Choi ◽  
Kyeong-Mee Park ◽  
Taekbin Kim ◽  
...  
Keyword(s):  
Cell Phone ◽  
Dental Trauma ◽  
Trauma Patients ◽  
Remote Diagnosis ◽  
High Quality ◽  
Improve Image Quality ◽  
Anterior Teeth ◽  
A Cell ◽  
Photography Education

BACKGROUND High-quality photos are critical for the remote diagnosis of dental trauma and thus are beneficial to the prognosis. The quality of the images obtained using a cell phone depends on the level of dental and photography knowledge of the person who is taking the photos. OBJECTIVE This study aimed to determine the efficacy of photography education in improving images used for the remote diagnosis of dental trauma. METHODS The subjects comprised 30 laypeople and 30 dentists who were randomly assigned to 15 subgroups with 2 subjects in each. Each subject was asked to take photos of their own anterior teeth and those of their partner on the assumption that an accident occurred using both an iPhone 4s and iPhone 6. Education about how to take an appropriate photo of the anterior teeth for teleconsultation purposes was then provided, after which photos were taken again. Photos were assessed by a dentist for their usefulness in diagnosis. RESULTS This study analyzed 965 photos: 441 taken by laypeople and 524 taken by dentists. Photos taken after providing education had significantly higher scores for all assessment items than those taken before education (<i>P</i>&lt;.05). The scores were also significantly higher for photos taken using the rear camera than those taken using the front camera (<i>P</i>&lt;.02). The iPhone 6 did not have overwhelming advantages. The photos taken by dentists had significantly higher scores than those taken by laypeople for most of the evaluated items. CONCLUSIONS Both laypeople and dentists might find photography education useful for when they are taking photos to be used in teleconsultations. The type of cell phone does not significantly affect the usefulness of such photos.

Miniature Spatial Heterodyne Raman Spectrometer with a Cell Phone Camera Detector

2016 ◽  
Vol 71 (5) ◽  
pp. 988-995 ◽  
Author(s):  
Patrick D. Barnett ◽  
S. Michael Angel
Keyword(s):  
Cell Phone ◽  
Diffraction Gratings ◽  
Standard Cell ◽  
High Quality ◽  
Charge Coupled Device ◽  
Raman Spectrometer ◽  
A Cell ◽  
Cooled Ccd ◽  
Ccd Detectors ◽  
Quality Imaging

A spatial heterodyne Raman spectrometer (SHRS) with millimeter-sized optics has been coupled with a standard cell phone camera as a detector for Raman measurements. The SHRS is a dispersive-based interferometer with no moving parts and the design is amenable to miniaturization while maintaining high resolution and large spectral range. In this paper, a SHRS with 2.5 mm diffraction gratings has been developed with 17.5 cm−1 theoretical spectral resolution. The footprint of the SHRS is orders of magnitude smaller than the footprint of charge-coupled device (CCD) detectors typically employed in Raman spectrometers, thus smaller detectors are being explored to shrink the entire spectrometer package. This paper describes the performance of a SHRS with 2.5 mm wide diffraction gratings and a cell phone camera detector, using only the cell phone’s built-in optics to couple the output of the SHRS to the sensor. Raman spectra of a variety of samples measured with the cell phone are compared to measurements made using the same miniature SHRS with high-quality imaging optics and a high-quality, scientific-grade, thermoelectrically cooled CCD.

scholarly journals Endodontic Management of Traumatised Permanent Anterior Teeth

2020 ◽  
Vol 9 (4) ◽  
pp. 37-44
Author(s):  
Jillian M. Phillips ◽  
Catherine T. McCann ◽  
Richard Welbury
Keyword(s):  
Decision Making ◽  
Clinical Decision Making ◽  
Dental Trauma ◽  
Clinical Decision ◽  
Endodontic Treatment ◽  
Permanent Teeth ◽  
Childhood And Adolescence ◽  
Trauma Patients ◽  
Social Burden ◽  
Anterior Teeth

Traumatised permanent anterior teeth can require endodontic treatment which may be immediate as part of acute trauma management, or delayed due to the development of sequelae. This paper will enable clinical decision making by exploring a range of situations in which endodontic treatment may be indicated, and also offer practical advice regarding effective endodontic treatment for paediatric dental trauma patients. Endodontic treatment of traumatised permanent teeth in paediatric patients is often challenging. However, with timely decision making and appropriate treatment, these teeth can often last throughout childhood and adolescence thus ensuring that a young patient does not have the social burden of a missing tooth and needing a prosthesis, and has the maximum restorative options available to them as they enter adulthood.

scholarly journals “Call. Mail. Shoot. Listen. Play” But What Functionalities Add Real Value in Convergent Products?

2010 ◽  
Vol 2 (2) ◽  
pp. 16-25
Author(s):  
Tripat Gill
Keyword(s):  
Cell Phone ◽  
Experimental Studies ◽  
Personal Digital Assistant ◽  
Internet Access ◽  
Potential Applications ◽  
A Cell ◽  
Real Value ◽  
Mobile Television

Abstract It is very common to add diverse new functionalities to existing base products (e.g., adding mobile television to a cell phone or internet access to a personal digital assistant). These convergent products offer users a broad choice of potential applications. However, it is not clear what additions are actually valued by consumers, and therefore also make sense from a manufacturer’s perspective. The current research addresses this very issue. It investigates the role of three factors on the evaluation of such convergent products (CPs); namely, (1) the consumption goal (utility versus fun-oriented) associated with the base product and the added functionality, (2) the prior ownership of the base product, and (3) the quality of the brand introducing the new functionality. In three experimental studies, the author explores the effect of each of the above three factors in the evaluation of CPs. On the basis of the results he presents some guidelines on how to extend existing products to create more value for consumers and manufacturers

scholarly journals Design of a Cell Phone Lens-Based Miniature Microscope with Configurable Magnification Ratio

2021 ◽  
Vol 11 (8) ◽  
pp. 3392
Author(s):  
Xinjun Wan ◽  
Xuechen Tao
Keyword(s):  
Cell Phone ◽  
Field Of View ◽  
Operational Experience ◽  
High Quality ◽  
Maximum Resolution ◽  
A Cell ◽  
Magnification Ratio ◽  
Digital Zooming ◽  
Imaging Performance ◽  
Maximum Field

Application of cell-phone-based microscopes has been hindered by limitations such as inferior image quality, fixed magnification and inconvenient operation. In this paper, we propose a reverse cell phone lens-based miniature microscope with a configurable magnification ratio. By switching the objectives of three camera lens and applying the digital zooming function of the cell phone, a cell phone microscope is built with the continuously configurable magnification ratio between 0.8×–11.5×. At the same time, the miniature microscope can capture high-quality microscopic images with a maximum resolution of up to 575 lp/mm and a maximum field of view (FOV) of up to 7213 × 5443 um. Furthermore, by moving the tube lens module of the microscope out of the cell phone body, the built miniature microscope is as compact as a <20 mm side length cube, improving operational experience profoundly. The proposed scheme marks a big step forward in terms of the imaging performance and user operational convenience for cell phone microscopes.

The Evolution of Augmentative Communication and the Importance of Alternate Access

2011 ◽  
Vol 20 (1) ◽  
pp. 34-37 ◽  
Author(s):  
David Chapple
Keyword(s):  
Augmentative And Alternative Communication ◽  
Cell Phone ◽  
Handheld Devices ◽  
Alternative Communication ◽  
Access Methods ◽  
The Past ◽  
Communication Device ◽  
Internet Browser ◽  
A Cell ◽  
Development Of Language

Abstract Over the past 20 years, there have been many advances in the computer industry as well as in augmentative and alternative communication (AAC) devices. Computers are becoming more compact and have multiple purposes, such as the iPhone, which is a cell phone, mp3 player, and an Internet browser. AAC devices also have evolved to become multi-purpose devices; the most sophisticated devices have functionality similar to the iPhone and iPod. Recently, the idea of having the iPhone and iPad as a communication device was initiated with the development of language applications specifically for this format. It might be true that this idea could become the future of AAC devices; however, there are major access issues to overcome before the idea is a reality. This article will chronicle advancements in AAC devices, specifically on access methods, throughout the years, towards the transition to handheld devices. The newest technologies hold much promise with both features and affordability factors being highly attractive. Yet, these technologies must be made to incorporate alternate access if they are to meet their fullest potential as AAC tools.

Influence of technology parameters of free-cutting steel continuous casting on the billet internal structure

2020 ◽  
Vol 76 (2) ◽  
pp. 139-142
Author(s):  
A. T. Kunakbaeva ◽  
A. M. Stolyarov ◽  
M. V. Potapova
Keyword(s):  
Regression Analysis ◽  
Continuous Casting ◽  
Internal Structure ◽  
Sulfur Content ◽  
Manganese Content ◽  
High Quality ◽  
Correlation And Regression Analysis ◽  
Cutting Steel ◽  
Continuously Cast

Free-cutting steel gains specific working properties thanks to the high content of sulfur and phosphorus. These elements, especially sulfur, have a rather high tendency to segregation. Therefore, segregation defects in free-cutting steel continuously cast billets can be significantly developed. The aim of the work was to study the influence of the chemical composition of freecutting steel and casting technological parameters on the quality of the macrostructure of continuously cast billets. A metallographic assessment of the internal structure of cast metal made of free-cutting steel and data processing by application of correlation and regression analysis were the research methods. The array of production data of 43 heats of free-cutting steel of grade A12 was studied. Steel casting on a five-strand radial type continuous casting machine was carried out by various methods of metal pouring from tundish into the molds. Metal of 19 heats was poured with an open stream, and 24 heats – by a closed stream through submerged nozzles with a vertical hole. High-quality billets had a cross-sectional size of 150×150 mm. The macrostructure of high-quality square billets made of free-cutting steel of A12 grade is characterized by the presence of central porosity, axial segregation and peripheral point contamination, the degree of development of which was in the range from 1.5 to 2.0 points, segregation cracks and strips – about 1.0 points. In the course of casting with an open stream, almost all of these defects are more developed comparing with the casting by a closed stream. As a result of correlation and regression analysis, linear dependences of the development degree of segregation cracks and strips both axial and angular on the sulfur content in steel and on the ratio of manganese content to sulfur content were established. The degree of these defects development increases with growing of sulfur content in steel of A12 grade. These defects had especially strong development when sulfur content in steel was of more than 0.10%. To improve the quality of cast metal, it is necessary to have the ratio of the manganese content to the sulfur content in the metal more than eight.

Experience of clinical testing of personal telemedicine system ‘Obereg’ for remote monitoring of patients in intensive care units

2020 ◽  
pp. 52-58 ◽  
Author(s):  
A. A. Eryomenko ◽  
N. V. Rostunova ◽  
S. A. Budagyan ◽  
V. V. Stets
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Remote Monitoring ◽  
Clinical Testing ◽  
Transportation Of Patients ◽  
High Quality ◽  
Telemedicine System ◽  
Accuracy Of Measurements ◽  
Hospital Equipment

The experience of clinical testing of the personal telemedicine system ‘Obereg’ for remote monitoring of patients at the intensive care units of leading Russian clinics is described. The high quality of communication with the remote receiving devices of doctors, the accuracy of measurements, resistance to interference from various hospital equipment and the absence of its own impact on such equipment were confirmed. There are significant advantages compared to stationary patient monitors, in particular, for intra and out-of-hospital transportation of patients.

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