scholarly journals LinguAPP: An m-Health Application for Teledentistry Diagnostics

2022 ◽  
Vol 19 (2) ◽  
pp. 822
Author(s):  
Matia Fazio ◽  
Christian Lombardo ◽  
Giuseppe Marino ◽  
Anand Marya ◽  
Pietro Messina ◽  
...  
Keyword(s):  
Mobile Devices ◽  
Low Cost ◽  
Ease Of Use ◽  
Ios Application ◽  
Health Application

An Android/iOS application for low-cost mobile devices to aid in dental diagnosis through questionnaire and photos is presented in this paper. The main purposes of our app lie in the ease of use even for nonexperienced users, in the limited hardware requirements that allow a wide diffusion, and in the possibility to modify the questionnaire for different pathologies. This tool was developed in about a month at the beginning of the COVID-19 (SARS-CoV-2) pandemic and is still in use in Italy to allow support to patients without going to the hospital, if not strictly necessary.

Mobile Educational Technology

2011 ◽  
pp. 1424-1431
Author(s):  
Chris Houser ◽  
Patricia Thornton
Keyword(s):  
Mobile Devices ◽  
Learning Experience ◽  
Low Cost ◽  
Ease Of Use ◽  
Collaborative Problem Solving ◽  
Personal Digital Assistants ◽  
Web Pages ◽  
Face To Face ◽  
Web Interfaces ◽  
E Mail

Mobile devices such as laptop computers, PDAs (personal digital assistants), and cell phones offer many features useful for learning both inside and outside classrooms. These devices offer access to Web pages and e-mail, and provide other functions such as textual noting and video cameras. They promise a single, easily learned device that can be useful in a variety of educational settings. When used appropriately, these devices can enrich the learning experience by connecting learners with each other, their environment, and with information providers. They can enable collaborative problem solving by providing easy face-to-face sharing of data through IR (infrared) beaming or distance sharing through e-mail and Web interfaces. For learners who require repetitive practice for skills development, mobile devices offer a personal tool that can be used anytime, anywhere for quick review. Because of their low cost and ease of use, mobile devices have the potential to bring the power of a computer to every learner.

Mobile Educational Technology

2011 ◽  
pp. 127-135
Author(s):  
Chris Houser ◽  
Patricia Thornton
Keyword(s):  
Mobile Devices ◽  
Learning Experience ◽  
Low Cost ◽  
Ease Of Use ◽  
Collaborative Problem Solving ◽  
Personal Digital Assistants ◽  
Web Pages ◽  
Face To Face ◽  
Web Interfaces ◽  
E Mail

Mobile devices such as laptop computers, PDAs (personal digital assistants), and cell phones offer many features useful for learning both inside and outside classrooms. These devices offer access to Web pages and e-mail, and provide other functions such as textual noting and video cameras. They promise a single, easily learned device that can be useful in a variety of educational settings. When used appropriately, these devices can enrich the learning experience by connecting learners with each other, their environment, and with information providers. They can enable collaborative problem solving by providing easy face-to-face sharing of data through IR (infrared) beaming or distance sharing through e-mail and Web interfaces. For learners who require repetitive practice for skills development, mobile devices offer a personal tool that can be used anytime, anywhere for quick review. Because of their low cost and ease of use, mobile devices have the potential to bring the power of a computer to every learner.

Mobile Educational Technology

2011 ◽  
pp. 1289-1296
Author(s):  
Chris Houser ◽  
Patricia Thornton
Keyword(s):  
Mobile Devices ◽  
Learning Experience ◽  
Low Cost ◽  
Ease Of Use ◽  
Collaborative Problem Solving ◽  
Personal Digital Assistants ◽  
Web Pages ◽  
Face To Face ◽  
Web Interfaces ◽  
E Mail

Mobile devices such as laptop computers, PDAs (personal digital assistants), and cell phones offer many features useful for learning both inside and outside classrooms. These devices offer access to Web pages and e-mail, and provide other functions such as textual noting and video cameras. They promise a single, easily learned device that can be useful in a variety of educational settings. When used appropriately, these devices can enrich the learning experience by connecting learners with each other, their environment, and with information providers. They can enable collaborative problem solving by providing easy face-to-face sharing of data through IR (infrared) beaming or distance sharing through e-mail and Web interfaces. For learners who require repetitive practice for skills development, mobile devices offer a personal tool that can be used anytime, anywhere for quick review. Because of their low cost and ease of use, mobile devices have the potential to bring the power of a computer to every learner.

scholarly journals Imaging in Propeller Flap Surgery

2020 ◽  
Vol 34 (03) ◽  
pp. 145-151
Author(s):  
Shimpei Ono ◽  
Hiroyuki Ohi ◽  
Rei Ogawa
Keyword(s):  
Low Cost ◽  
Three Dimensional ◽  
Duplex Sonography ◽  
Computed Tomographic Angiography ◽  
Ease Of Use ◽  
Computed Tomographic ◽  
Imaging Tool ◽  
Preoperative Mapping ◽  
Flap Design ◽  
Tomographic Angiography

AbstractSince propeller flaps are elevated as island flaps and most often nourished by a single perforator nearby the defect, it is challenging to change the flap design intraoperatively when a reliable perforator cannot be found where expected to exist. Thus, accurate preoperative mapping of perforators is essential in the safe planning of propeller flaps. Various methods have been reported so far: (1) handheld acoustic Doppler sonography (ADS), (2) color duplex sonography (CDS), (3) perforator computed tomographic angiography (P-CTA), and (4) magnetic resonance angiography (MRA). To facilitate the preoperative perforator assessment, P-CTA is currently considered as the gold standard imaging tool in revealing the three-dimensional anatomical details of perforators precisely. Nevertheless, ADS remains the most widely used tool due to its low cost, faster learning, and ease of use despite an undesirable number of false-positive results. CDS can provide hemodynamic characteristics of the perforator and is a valid and safer alternative particularly in patients in whom ionizing radiation and/or contrast exposure should be limited. Although MRA is less accurate in detecting smaller perforators of caliber less than 1.0 mm and the intramuscular course of perforators at the present time, MRA is expected to improve in the future due to the recent developments in technology, making it as accurate as P-CTA. Moreover, it provides the advantage of being radiation-free with fewer contrast reactions.

scholarly journals Liquid marble based digital microfluidics – fundamentals and applications

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Chin Hong Ooi ◽  
Raja Vadivelu ◽  
Jing Jin ◽  
Sreejith Kamalalayam Rajan ◽  
Pradip Singha ◽  
...  
Keyword(s):  
Low Cost ◽  
Digital Microfluidics ◽  
Ease Of Use ◽  
Liquid Marbles ◽  
Liquid Marble

Liquid marbles are droplets with volume typically on the order of microliters coated with hydrophobic powder. The versatility, ease of use and low cost make liquid marbles an attractive platform...

scholarly journals Molecularly Imprinted Polymers Combined with Electrochemical Sensors for Food Contaminants Analysis

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4607
Author(s):  
Dounia Elfadil ◽  
Abderrahman Lamaoui ◽  
Flavio Della Pelle ◽  
Aziz Amine ◽  
Dario Compagnone
Keyword(s):  
Food Safety ◽  
Molecularly Imprinted Polymers ◽  
Electrochemical Sensors ◽  
Low Cost ◽  
Electrochemical Analysis ◽  
Ease Of Use ◽  
Electrochemical Sensing ◽  
Food Contaminants ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

Detection of relevant contaminants using screening approaches is a key issue to ensure food safety and respect for the regulatory limits established. Electrochemical sensors present several advantages such as rapidity; ease of use; possibility of on-site analysis and low cost. The lack of selectivity for electrochemical sensors working in complex samples as food may be overcome by coupling them with molecularly imprinted polymers (MIPs). MIPs are synthetic materials that mimic biological receptors and are produced by the polymerization of functional monomers in presence of a target analyte. This paper critically reviews and discusses the recent progress in MIP-based electrochemical sensors for food safety. A brief introduction on MIPs and electrochemical sensors is given; followed by a discussion of the recent achievements for various MIPs-based electrochemical sensors for food contaminants analysis. Both electropolymerization and chemical synthesis of MIP-based electrochemical sensing are discussed as well as the relevant applications of MIPs used in sample preparation and then coupled to electrochemical analysis. Future perspectives and challenges have been eventually given.

scholarly journals Review of Electrochemical DNA Biosensors for Detecting Food Borne Pathogens

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4916 ◽  
Author(s):  
Qiaoyun Wu ◽  
Yunzhe Zhang ◽  
Qian Yang ◽  
Ning Yuan ◽  
Wei Zhang
Keyword(s):  
Pathogen Detection ◽  
Low Cost ◽  
Electrochemical Techniques ◽  
Ease Of Use ◽  
Detection Methods ◽  
Future Research ◽  
Dna Biosensors ◽  
Food Borne Pathogens ◽  
Chip Technology ◽  
Food Borne

The vital importance of rapid and accurate detection of food borne pathogens has driven the development of biosensor to prevent food borne illness outbreaks. Electrochemical DNA biosensors offer such merits as rapid response, high sensitivity, low cost, and ease of use. This review covers the following three aspects: food borne pathogens and conventional detection methods, the design and fabrication of electrochemical DNA biosensors and several techniques for improving sensitivity of biosensors. We highlight the main bioreceptors and immobilizing methods on sensing interface, electrochemical techniques, electrochemical indicators, nanotechnology, and nucleic acid-based amplification. Finally, in view of the existing shortcomings of electrochemical DNA biosensors in the field of food borne pathogen detection, we also predict and prospect future research focuses from the following five aspects: specific bioreceptors (improving specificity), nanomaterials (enhancing sensitivity), microfluidic chip technology (realizing automate operation), paper-based biosensors (reducing detection cost), and smartphones or other mobile devices (simplifying signal reading devices).

Face recognition in an intelligent door lock with ResNet model based on deep learning

2021 ◽  
pp. 1-11
Author(s):  
Suphawimon Phawinee ◽  
Jing-Fang Cai ◽  
Zhe-Yu Guo ◽  
Hao-Ze Zheng ◽  
Guan-Chen Chen
Keyword(s):  
Face Recognition ◽  
Detection System ◽  
Low Cost ◽  
Ease Of Use ◽  
Raspberry Pi ◽  
Training Methods ◽  
Graphics Recognition ◽  
Face Images ◽  
The Face ◽  
Door Lock

Internet of Things is considerably increasing the levels of convenience at homes. The smart door lock is an entry product for smart homes. This work used Raspberry Pi, because of its low cost, as the main control board to apply face recognition technology to a door lock. The installation of the control sensing module with the GPIO expansion function of Raspberry Pi also improved the antitheft mechanism of the door lock. For ease of use, a mobile application (hereafter, app) was developed for users to upload their face images for processing. The app sends the images to Firebase and then the program downloads the images and captures the face as a training set. The face detection system was designed on the basis of machine learning and equipped with a Haar built-in OpenCV graphics recognition program. The system used four training methods: convolutional neural network, VGG-16, VGG-19, and ResNet50. After the training process, the program could recognize the user’s face to open the door lock. A prototype was constructed that could control the door lock and the antitheft system and stream real-time images from the camera to the app.

scholarly journals Environmental Attitudes and Willingness to Purchase Online—Classification Approach

2021 ◽  
Vol 13 (15) ◽  
pp. 8592
Author(s):  
Marcin Gąsior
Keyword(s):  
Information Search ◽  
Environmental Attitudes ◽  
Low Cost ◽  
Ease Of Use ◽  
Internet Users ◽  
Research Procedure ◽  
Willingness To Purchase ◽  
Willingness To Use ◽  
Competitive Pricing ◽  
Self Reporting Questionnaire

During the last several years, a tremendous increase in the popularity of online shopping has been observed. There are several possible reasons behind it, some of them, like competitive pricing, convenience or low cost of information search, considered to be extrinsic, others—like ease of use of this channel, pleasure related to it or willingness to reduce social interactions—intrinsic. The purpose of this research is to evaluate another factor, i.e., consumers’ environmental attitudes, in the perspective of their possible relation with the perception and willingness to use online and conventional shopping channels. In order to achieve this, a self-reporting questionnaire was developed and the data from a representative sample of 1000 Polish Internet users was gathered. The research procedure included cluster analysis, whose objective was to identify groups of customers with similar composition of environmental attitudes and next, a set of Kruskal–Wallis tests, aimed at identifying differences in opinions on channels between these clusters. The research proved that large groups of consumers with consistent sets of environmental attitudes exist and the scope of differences between such clusters is not reduced to a unidimensional, “positive–negative” continuum. Furthermore, there are significant differences between clusters in the declared willingness to use online and conventional shopping channels—groups more environmentally-oriented are more willing to purchase online and trust online shops, although they neither perceive conventional retail in a more negative way nor directly prefer online over conventional channels. The nature of such a phenomenon is open to explanation and interpretation, nevertheless, the research proves that environmental attitudes should be included in future models of consumers’ channel choice.

Removal of Ni(II) from aqueous solution using Moringa oleifera seeds as a bioadsorbent

2012 ◽  
Vol 65 (8) ◽  
pp. 1435-1440 ◽  
Author(s):  
Thiago L. Marques ◽  
Vanessa N. Alves ◽  
Luciana M. Coelho ◽  
Nívia M. M. Coelho
Keyword(s):  
Moringa Oleifera ◽  
Low Cost ◽  
Ease Of Use ◽  
Toxic Waste ◽  
Adsorption Model ◽  
New Techniques ◽  
Sorption Data ◽  
Natural Adsorbents ◽  
Ph Range

Metal contaminants are generally removed from effluents by chemical and physical processes which are often associated with disadvantages such as the use of toxic reagents, generation of toxic waste and high costs. Hence, new techniques have been developed, among them the study of natural adsorbents, for instance, the use of Moringa oleifera seeds. The potential of M. oleifera seeds for nickel removal in aqueous systems was investigated. The seeds utilized were obtained from plants grown in Uberlândia/Brazil. After being dried and pulverized, the seeds were treated with 0.1 mol/L NaOH. Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analyses were used for the characterization of the material. Using the optimized methodology (50 mL of 4.0 mg/L Ni(II), pH range of 4.0–6.0, agitation time of 5 min and adsorption mass of 2.0 g) more than 90% of Ni(II) could be removed from water samples. The sorption data were fitted satisfactorily by the Langmuir adsorption model. Evaluation applying the Langmuir equation gave the monolayer sorption capacity as 29.6 mg/g. The results indicate that this material could be employed in the extraction of nickel, considering its ease of use, low cost and environmental viability, which make it highly attractive for application in developing countries.

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