Mobile Module Research Articles

A novel adaptive schema to facilitates playback switching technique for video delivery in dense LTE cellular heterogeneous network environments

The services of the Video on Demand (VoD) are currently based on the developments of the technology of the digital video and the network’s high speed. The files of the video are retrieved from many viewers according to the permission, which is given by VoD services. The remote VoD servers conduct this access. A server permits the user to choose videos anywhere/anytime in order to enjoy a unified control of the video playback. In this paper, a novel adaptive method is produced in order to deliver various facilities of the VoD to all mobile nodes that are moving within several networks. This process is performed via mobility modules within the produced method since it applies a seamless playback technique for retrieving the facilities of the VoD through environments of heterogeneous networks. The main components comprise two servers, which are named as the GMF and the LMF. The performance of the simulation is tested for checking clients’ movements through different networks with different sizes and speeds, which are buffered in the storage. It is found to be proven from the results that the handoff latency has various types of rapidity. The method applies smooth connections and delivers various facilities of the VoD. Meantime, the mobile device transfers through different networks. This implies that the system transports video segments easily without encountering any notable effects.In the experimental analysis for the Slow movements mobile node handoff latency (8 Km/hour or 4 m/s) ,the mobile device’s speed reaches 4m/s, the delay time ranges from 1 to 1.2 seconds in the proposed system, while the MobiVoD system ranges from 1.1 to 1.5. In the proposed technique reaches 1.1026 seconds forming the required time of a mobile device that is switching from a single network to its adjacent one. while the handoff termination average in the MobiVoD reaches 1.3098 seconds. Medium movement mobile node handoff latency (21 Km/ hour or 8 m/s) The average handoff time for the proposed system reaches 1.1057 seconds where this implies that this technique can seamlessly provide several segments of a video segments regardless of any encountered problems. while the average handoff time for the MobiVoD reaches 1.53006623 seconds. Furthermore, Fast movement mobile node handoff latency (390 Km/ hour or 20 m/s). The average time latency of the proposed technique reaches 1.0964 seconds, while the MobiVoD System reaches to 1.668225 seconds.

A drop-impact reliability assessment of mobile display modules using a statistical modeling approach

Since drop-impact is the most frequent cause of failure of mobile devices and the display is the major channel for users to interact with mobile devices, the reliability of the display module by drop-impact is one of the most important concerns for both manufacturers and customers. In this paper, we propose- a drop-impact reliability assessment method for the mobile display module using a statistical modeling approach. First, the general likelihood functions that consider various censored data are proposed to obtain accurate estimates. Second, under the constraints of the test budget and the sample size, the optimization problem for minimizing the mean squared error of the target of interest with the decision variables was proposed. The proposed method was applied to the real application example to determine the most reliable mobile display module design.

Use of Champions Identified by Social Network Analysis to Reduce Health Care Worker Patient-Assist Injuries

Safe patient handling and mobility (SPHM) programs recommend having champions, but have not indicated how to identify them and have confined their role to peer-based activities, limiting their ability to influence control measures. In a pilot program conducted at a community access hospital in Oregon, researchers applied social network analysis (SNA) of safety advice to identify champion candidates. Candidates were invited to complete mobility, communication, and quality improvement (QI) training modules to become champions. Champions' roles included peer-based instruction and participation in QI quarterly meetings with hospital leaders. The program process was evaluated through weekly e-mail check-ins and documentation of quarterly meetings. Outcomes were evaluated with a pre-post design, observing 12-month changes in self-reported leading indicators and Good Catch reports, as well as trends in patient-assist injuries (2011-2019). SNA identified six candidates, four of whom became champions. Champions completed 48 weekly logs. The quarterly meetings concerned unitwide SPHM training, equipment storage, and onboarding. Results showed significant improvements in equipment use, safety participation, and safety compliance, particularly among workers who would seek SPHM advice from champions or recently hired workers. Compared with the prior year, the Good Catch monthly entries increased from 11.69 to 28.81. The average annual incidence rate of patient-assist injuries dropped from 13.01 for the six years before the program to 3.7 per 100 full-time equivalents (FTE) for the two years after. A program with SNA-identified and QI-trained champions improved safety outcomes after one year. Better-designed evaluations are needed to establish the replicability and long-term impact of this program.

Electron mobility modulation in graphene oxide by controlling carbon melt lifetime

The lack of bandgap is a fundamental issue in graphene devices, which can be solved by fabricating reduced graphene oxide (rGO). However, its device integration is impeded by the elevated reduction temperature (>2000 K) requirements. Recently, we demonstrated a new approach for laser writing heavily-reduced GO by employing the nonequilibrium approach of nanosecond laser annealing (Gupta and Narayan, 2019) [1]. Here, we report on the electron mobility modulation in the liquid phase grown graphene oxide. The process involves melting and subsequent quenching of molten carbon, which triggers the first-order phase transformation of amorphous carbon (a-C) into rGO. Laser annealing at energy density above the 0.3 J/cm2 melting threshold results in liquid-phase rGO growth on Si/SiO2. The rGO films exhibit 26 cm2/V-s room-temperature electron mobility and −4.7 × 1021/cc charge carrier concentration on annealing near melt threshold. The heavily-reduced GO films are formed on -O- creeping in the loosely-packed low undercooled carbon melt during ultrafast quenching. We establish that -O- injection is an implicit function of melt lifetime, and a rise in melt lifetime triggers GO film regrowth with increased mobility >210 cm2/V-s and 2.2 × 1019/cc carrier concentration on annealing at 0.6 J/cm2. Laser annealing resolves the fundamental issues of impurities and topological defects in rGO fabrication by equilibrium-based methods, facilitating increased electron mobility in laser patterned graphene-based materials.

Mobilization of pdif modules in Acinetobacter: A novel mechanism for antibiotic resistance gene shuffling?

XerCD-dif site-specific recombination is a well characterized system, found in most bacteria and archaea. Its role is resolution of chromosomal dimers that arise from homologous recombination. Xer-mediated recombination is also used by several plasmids for multimer resolution to enhance stability and by some phage for integration into the chromosome. In the past decade, it has been hypothesized that an alternate and novel function exists for this system in the dissemination of genetic elements, notably antibiotic resistance genes, in Acinetobacter species. Currently the mechanism underlying this apparent genetic mobility is unknown. Multidrug resistant Acinetobacter baumannii is an increasingly problematic pathogen that can cause recurring infections. Sequencing of numerous plasmids from clinical isolates of A. baumannii revealed the presence of possible mobile modules: genes were found flanked by pairs of Xer recombination sites, called plasmid-dif (pdif) sites. These modules have been identified in multiple otherwise unrelated plasmids and in different genetic contexts suggesting they are mobile elements. In most cases, the pairs of sites flanking a gene (or genes) are in inverted repeat, but there can be multiple modules per plasmid providing pairs of recombination sites that can be used for inversion or fusion/deletion reactions; as many as 16 pdif sites have been seen in a single plasmid. Similar modules including genes for surviving environmental toxins have also been found in strains of Acinetobacter Iwoffi isolated from permafrost cores; this suggests that these mobile modules are an ancient adaptation and not a novel response to antibiotic pressure. These modules bear all the hallmarks of mobile genetic elements, yet, their movement has never been directly observed to date. This review gives an overview of the current state of this novel research field.

Examining two-dimensional Fröhlich model and enhancing the electron mobility of monolayer InSe by dielectric engineering

In polar compounds, Fröhlich interaction plays an important role in electrical transport, and it is highly dependent on the dimensionality. In two-dimensional (2D) materials, Fröhlich interaction cannot be correctly described by the analytical model available for bulk materials, which prevents the employment of the state-of-the-art first-principles calculation of electrical transport based on maximally localized Wannier functions interpolation. Recently, an approximate 2D Fröhlich model with screened dielectric properties is proposed. Selecting the strong polar material of monolayer InSe, we examine the accuracy of this 2D Fröhlich model by comparing the electron mobility calculated using this model with that based on direct density functional perturbation theory calculations of 2D Fröhlich interaction. It is found that the 2D Fröhlich model can guarantee fairly good results with an advantage of tremendously reduced computational consumption. Using this model, the modulation of the electron mobility of monolayer InSe by the dielectric environment is studied. The electron mobility can be drastically enhanced by coating high-dielectric materials, with room-temperature mobility improved from about 100cm2V−1s−1 to about 500cm2V−1s−1, due to the strong suppression of Fröhlich scattering.

Telemedicine and the Management of Insomnia.

Insomnia is a significant public health concern. Cognitive behavioral therapy for insomnia (CBT-i) is considered first-line treatment. The use of telemedicine for CBT-i allows for increased access to providers for patients who are geographically remote as well as to self-directed CBT-i modalities that do not require the involvement of a therapist. Tele-CBT-i modalities include video conferencing with a CBT-i therapist in an individual or group setting or use of Web or mobile application-based CBT-i modules with varying levels of support from a therapist. Multiple studies and meta-analyses support the efficacy of tele-CBT-i when compared with face-to-face CBT-i and placebo.

Copper Vanadate (Cu3V2O8): (Mo, W) Doping Insights to Enhance Performance as an Anode for Photoelectrochemical Water Splitting

Molybdenum (Mo) and tungsten (W) doping in copper vanadate (Cu3V2O8) gives important insights into the modulation of carrier mobility and charge separation efficiency. Mo and W atoms have more vale...

ЦЕНТРАЛЬНА СТОМАТОЛОГІЧНА ПОЛІКЛІНІКА МІНІСТЕРСТВА ОБОРОНИ УКРАЇНИ В ІСТОРИЧНІЙ РЕТРОСПЕКТИВІ

The article analyzes a history of the Central Dental Polyclinic of the Ministry of Defense of Ukraine, which was established on the basis of the 147th Dental Laboratory in August 1944 under the Sanitary department of the Kyiv Military District. The material and technical base of the Central Dental Polyclinic was gradually improved and the number of personnel increased. Particular attention was paid to the training of medical professionals, as well as to the scientific, practical and inventive activities. Nowadays, patients can receive a full range of services in diagnosis, treatment and prosthetics of teeth. The personnel use modern technologies and provide all types of therapeutic and emergency outpatient surgical care. Since the beginning of the anti-terrorist operation (ATO) in eastern Ukraine, the Polyclinic's management has restored and completed full-time mobile dental modules in accordance with European standards which currently operate in the area of the United Forces Operation (UFO). The Central Dental Polyclinic of the Ministry of Defense of Ukraine constantly works for participants of ATO / UFO and those who was released from the captivity. The Polyclinic conducts dental care with the use of implants, complicated prosthetics, bone plastics for seriously injured people. A single electronic card of a military man was launched and the Unified medical space was created in order to optimize the healthcare. Nowadays, the Central Dental Polyclinic of the Ministry of Defense of Ukraine has well-equipped diagnostic and treatment rooms and uses materials and technologies that meet the world standards, as well as dental microscopes, radiological diagnostics, etc.The Central Dental Polyclinic is a scientific, methodological and educational base of the Department of Maxillofacial Surgery and Dentistry of the Ukrainian Military Medical Academy and provides training for military dentists.The only dentistry museum in Ukraine operates at the Polyclinic.

Strain‐Gradient‐Induced Modulation of Carrier Density and Mobility at the LaAlO3/SrTiO3 Heterointerface

AbstractA strain gradient induced by mechanical bending on a SrTiO3 substrate is demonstrated, and has a pronounced influence on the carrier density and mobility of the interfacial 2D electron gas at the LaAlO3/SrTiO3 heterointerface. Tensile and compressive strain gradients represent two states of upward and downward bending. Under the tensile strain gradient, the carrier density decreases and the mobility has about 200% increase. Conversely, under the compressive strain gradient, the mobility decreases and the carrier density increases by up to 107%. These results demonstrate a range of opportunities to modulate the carrier density and mobility at oxide heterointerface and open up a promising way for further research on application of oxide devices.

A Wafer Level Packaged Fully Integrated Tunable Fabry-Pérot Filter With Extended Optical Range For Multispectral and Hyperspectral Imaging

We report on the design, fabrication and characterization of a wafer level packaged, vacuum sealed, fully integrated and cell-phone compatible tunable micromachined Fabry-Perot filter ( $\mu $ FPF), operating within the visual and near-infrared (VIS-NIR) optical range. Implementation of a normally closed architecture combined with the electrostatic actuation enlarging, rather than closing, the optical cavity allows to achieve enhanced tunability of the optical gap. To evaluate the design and operational parameters, an electro-opto-mechanical model of the device was built and the resulting system of equations, coupling the structural, squeeze film, electrostatic and electric circuit domains, was solved numerically. The devices with an optical aperture of 1.85 mm and with robust elastic suspensions made of single crystal Si were fabricated and, consistently with the model prediction, the filter tunability within the range between 100 nm and 500 nm was demonstrated in the experiments. Vertically integrated design resulted in a small, 1 mm, thickness of a fully assembled device. Due to its compact size, manufacturability and short response time within the millisecond range, our tunable filter can be directly integrated into mobile phone camera modules, portable hyperspectral imagers, and remote sensors.

Temperature-compensated infrared-based low-cost mobile platform module for mass human temperature screening.

As fast human temperature screening is needed in large public areas, this paper proposes a low-cost mobile platform module that combines the advantages of analyzing visible and thermal images. In particular, the key idea relies on face detection in the visible image. Then the coordinates of all faces detected are mapped on to the thermal image to determine their corresponding temperatures. Internal temperature compensation and external reference temperature also are employed to reduce the unwanted temperature fluctuation inside the module and in the surrounding environment. Our mobile platform module, called $\unicode{x00B5} {\rm Therm}$, uses a FLIR ONE camera as our visible and thermal imaging cameras. It can simultaneously determine the temperatures of nine people at a speed of 8 frames/second. A field test operation was performed for four days with 1,170 people, with very promising results of 100% sensitivity, 92.6% specificity, and 92.7% accuracy.

IoT based real time water level monitoring using Texas instruments' CC3200

Objective: To monitor and control the water level in real time using IoT and cloud computing technologies to avoid the wastage of water in water storage tanks/sumps. Methods/Analysis: The level of water in a tank is detected by using ultrasonic sensor HC-SR04 which works on the principle similar to radar/sonar by converting electrical energy to acoustic waves and vice-versa and it is interfaced with CC3200 Launchpad, on-chip Wi-Fi microcontroller from Texas Instruments. Geotagging Technique is used to easily track the location of the water overflow. Findings: Ultrasonic sensor measures the distance and the microcontroller reads the data and uploads to the ThingSpeak cloud for real time monitoring and graphical representation. When the water reaches the reserve position and normally the motor will be switched off. Once the water attains a maximum level before overflow occurs. In case failure of the motor actuator (relay) it needs a physical switching of the motor. Such a scenario is tackled by sending an alert to the mobile using GSM SIM900A (Global System for Mobile communication Subscriber Identity Module) as such, failure of the actuator is taken care off. Novelty: In this study, we have designed an IoT based water level indicator with minimum power consumption which can be used for Domestic applications. Keywords: Water level, GeoTagging, IoT, CC3200, ThingSpeak cloud

Single‐Layer Aberration‐Compensated Flat Lens for Robust Wide‐Angle Imaging

AbstractMetasurfaces are planarized and miniaturized versions of conventional optical elements. Subwavelength‐thick single‐layer metalenses have diffraction limited resolution for on‐axis imaging but relatively low resolution for off‐axis imaging due to off‐axial aberrations. The aberrations of planar single‐layer metalenses have been corrected by patterning two metasurfaces on both sides of a substrate to form metalens doublets with a thickness of hundreds of micrometers to millimeters. The multilevel diffractive lenses are demonstrated to achieve wide angle imaging with a thickness of several micrometers, however, the off‐axial aberrations are not compensated. Here, an epsilon‐greedy algorithm‐based scheme for achieving a planar wavelength‐thick single‐layer aberration‐compensated (SLAC) flat lens consisting of dielectric nanoring structures fabricated by 3D printing are proposed. The scheme is experimentally validated via a SLAC flat lens. This SLAC flat lens has a thickness of 1 µm, a numerical aperture of 0.45, a focal length of 1 mm, a full field of view (FOV) of 32° that enables aberration‐compensated imaging along the focal plane and monochromatic microscopic imaging with resolution better than 2.2 µm at a wavelength of 633 nm. This scheme can lead to ultrathin wide‐FOV flat lens designs as well as low‐cost mass production, which has various applications in miniscopes, mobile camera modules, and machine vision.

Can ABC Lead to Sustained 123? The Medium-Term Effects of a Technology-Enhanced Adult Education Program

Can information technology preserve the short-term learning gains associated with adult education programs? This study estimates the medium-term impacts of a mobile phone module (Project ABC) that was added to a standard adult education curriculum and for which there were significant short-term impacts on educational outcomes. Two years after the end of the program, students in ABC villages had reading scores that were significantly higher than those in standard adult education classes, and women and younger students were better able to decode numbers. This can be partially attributed to more active mobile phone usage in ABC villages. Households in ABC villages also were more likely to own certain durable assets, had higher levels of food security, and were more likely to save. Overall, these results suggest that short-term learning gains associated with technology can persist, especially if students have the opportunity to practice using that technology after the end of classes.

Conversion of Sign Language to Text and Speech and Prediction of Gesture

People with the inability to speak, use sign language for communication. Ordinary people usually find it very difficult to communicate with mute people due to their lack of understanding of the universal sign language. This paper aims to provide a solution for this very problem through a device that uses an Arduino Uno board, some flex sensors and an Android application to facilitate interaction amongst the users. The flex sensors detect the movements and gestures of the wearer and based on the established conditions for the different values generated, respective messages are sent using a Global System for Mobile (GSM) Module to the user’s android device which translates the text message to speech. The GSM module also attempts to create parameters for gesture predictions by sending sensor inputs to a cloud-based server for future reference. The application is ever learning and continues to evolve to be more reliable by examining user behaviours at all times. The use of this device allows mute people to convert sign language to speech, thereby making it significantly easier to talk to others, especially those who do not know sign language. This device empowers mute people and opens them up to previously unattainable opportunities.

Structure of SWI/SNF chromatin remodeller RSC bound to a nucleosome.

Chromatin remodelling complexes of the SWI/SNF family function in the formation of nucleosome-depleted, transcriptionally active promoter regions (NDRs)1,2. The essential Saccharomyces cerevisiae SWI/SNF complex RSC3 contains 16 subunits, including the ATP-dependent DNA translocase Sth14,5. RSC removes nucleosomes from promoter regions6,7 and positions the specialized +1 and –1 nucleosomes that flank NDRs8,9. Here, we present the cryo-EM structure of RSC in complex with a nucleosome substrate. The structure reveals that RSC forms five protein modules and suggests key features of the remodelling mechanism. The body module serves as a scaffold for the four flexible modules that we call DNA-interacting, ATPase, arm and ARP modules. The DNA-interacting module binds extra-nucleosomal DNA and is involved in the recognition of promoter DNA elements8,10,11 that influence RSC functionality12. The ATPase and arm modules sandwich the nucleosome disc with their ‘SnAC’ and ‘finger’ elements, respectively. The translocase motor of the ATPase module engages with the edge of the nucleosome at superhelical location +2. The mobile ARP module may modulate translocase-nucleosome interactions to regulate RSC activity5. The RSC-nucleosome structure provides a basis for understanding NDR formation and the structure and function of human SWI/SNF complexes that are frequently mutated in cancer13.

ARCTIC NOMADIC DESIGN (THE NENETS CASE)

Abstract The nomadic technologies of reindeer herders from Yamal Peninsula, in their multidimensional complexity – from the space-time continuity of mobile camps on the open tundra to multi-functionality of material things – enable and facilitate mobility in the extreme environment of the Arctic. The nomadic tradition contains a whole array of concepts (or principles), which, on the one hand, are ultimately practical and, on the other, deserve a theoretical projection. These include: nomadic transformer, mobile module, movement effect, techno-animation, material austerity, space-time continuity, arctic aesthetics. A study of nomadic design implies the usage of new methods of movement recording – MTA (mapping–tracking–acting), including visual data such as UAV mapping, GPS-tracking and 3D-modelling.

Creating a Food Menu Application for Mendel University in Brno

The presented paper describes the creation of a mobile application module for showing a current menu at Mendel University cafeterias. Nowadays, the students and the university staff have the menu accessible through a static webpage. The presented solution serves as a dynamic presentation of the current menu for all Mendel University in Brno cafeterias. Most cafeteria menu applications use the REST architectures for the server backend. The contribution of the paper is in usage of the Google Firebase Realtime database as a server backend. Unlike in traditional REST architecture, the data e.g. the food rating is instantaneously changed and the users have an up to date information. Part of the presented solution is also a mobile application module for both Android and iOS where university students and staff can see the current cafeterias menus.

A Mobile Learning Module to Support Interprofessional Knowledge Construction in the Health Professions

Objective. To develop and evaluate a mobile learning module to support knowledge construction between medical and pharmacy students through structured dialogue prompts. Methods. Rheumatologists and pharmacists collaboratively developed a two-week, case-based, asynchronous interprofessional learning module that was delivered via a mobile app and focused on collaborative medication management of a complex case involving a patient with systemic lupus erythematosus. The clinical case evolved over three phases: diagnosis, initial treatment, and medication-related complications. Dialogue prompts were incorporated in each phase as a mechanism to support knowledge construction among learners. Pharmacy and medical student pairs were randomized to receive either high guidance or low guidance prompts for collaborative learning. The student pairs worked together, asynchronously, online, to develop three collaborative care plans. The evaluation of the learning module to support knowledge construction included: analysis of text-based dialogue coded for knowledge construction phases; the accuracy and completeness of the three collaborative care plans; and quantitative and qualitative participant feedback. Results. Sixteen pairs of medical and pharmacy students (n=32) participated. Pairs who received high guidance engaged in all phases of knowledge construction more often than pairs who received low guidance. Guidance phase did not differentially impact collaborative care plan scores. Ninety-eight percent of students agreed or strongly agreed that the module improved their clinical reasoning, interprofessional communication, and knowledge of systemic lupus erythematosus. Conclusion. The knowledge construction framework can guide the design and evaluation of educational interventions such as a mobile learning module to support knowledge construction among health professionals.