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The lateral wedge insole (LWI) is a typical orthopedic treatment for medial knee osteoarthritis pain, chronic ankle instability, and peroneal tendon disorders. It is still unknown what the effects are in the most important joints of the foot when using LWIs as a treatment for knee and ankle pathologies. Objectives: The aim of this study was to determine the influence of LWIs on the position of the midfoot and rearfoot joints by measuring the changes using a tracking device. Methods: The study was carried out with a total of 69 subjects. Movement measurements for the midfoot were made on the navicular bone, and for the rearfoot on the calcaneus bone. The Polhemus system was used, with two motion sensors fixed to each bone. Subjects were compared by having them use LWIs versus being barefoot. Results: There were statistically significant differences in the varus movement when wearing a 4 mm LWI (1.23 ± 2.08°, p < 0.001) versus the barefoot condition (0.35 ± 0.95°), and in the plantarflexion movement when wearing a 4 mm LWI (3.02 ± 4.58°, p < 0.001) versus the barefoot condition (0.68 ± 1.34°), in the midfoot. There were also statistically significant differences in the valgus movement when wearing a 7 mm LWI (1.74 ± 2.61°, p < 0.001) versus the barefoot condition (0.40 ± 0.90°), and in the plantar flexion movement when wearing a 4 mm LWI (2.88 ± 4.31°, p < 0.001) versus the barefoot condition (0.35 ± 0.90°), in the rearfoot. Conclusions: In the navicular bone, a varus, an abduction, and plantar flexion movements were generated. In the calcaneus, a valgus, an adduction, and plantar flexion movements were generated with the use of LWIs.

Simple Summary To increase the probability of reunions occurring between owners and lost pets, tracking devices are applied to pets. The pet’s position is determined by satellites (e.g., GPS) and transmitted by radio frequencies (RFs) to a mobile phone. In this study, the health risks from exposure to radio frequencies emitted by radios, TVs, mobile networks, indoor devices (e.g., WLAN, Bluetooth), mobile phones, and in the use of such tracking devices were investigated. The radiation exposure was found to be well below international limit values, which means that adverse health effects are unlikely to occur. The risk of high exposure of pets is mainly caused by indoor RF-emitting devices, such as WLAN devices. This exposure can be limited through a reduction in the exposure time and an increase in the distance between the animal and the RF-emitting device. Even though the exposure of pets to total radiofrequency electromagnetic field (RF-EMF) levels was found to be below the limit values—and, therefore, not a health risk—recommendations are given for the use of tracking devices and to limit the exposure to indoor devices. Abstract Every year, approximately 3% of cats and dogs are lost. In addition to passive methods for identifying pets, radiofrequency tracking devices (TDs) are available. These TDs can track a pet’s geographic position, which is transmitted by radio frequencies. The health risk to the animals from continuous exposure to radiofrequency electromagnetic fields (RF-EMFs) was reviewed. Fourteen out of twenty-one commercially available TDs use 2G, 3G, or 4G mobile networks, and the others work with public frequencies, WLAN, Bluetooth, etc. The exposure of pets to RF-EMFs was assessed, including ambient exposure (radios, TVs, and base stations of mobile networks), exposure from indoor devices (DECT, WLAN, Bluetooth, etc.), and the exposure from TDs. The exposure levels of the three areas were found to be distinctly below the International Commission on Non-Ionising Radiation Protection (ICNIRP) reference levels, which assure far-reaching protection from adverse health effects. The highest uncertainty regarding the exposure of pets was related to that caused by indoor RF-emitting devices using WLAN and DECT. This exposure can be limited considerably through a reduction in the exposure time and an increase in the distance between the animal and the RF-emitting device. Even though the total RF-EMF exposure level experienced by pets was found to be below the reference limits, recommendations were derived to reduce potential risks from exposure to TDs and indoor devices.

Hadrontherapy is a technique for cancer treatment that exploits ion beams (mostly protons and carbons). A critical issue is the accuracy that is achievable when monitoring the dose released by the beam to the tumor and to the surrounding tissues. We present the design of a tracking device, developed in the framework of the INSIDE project [1] , capable of monitoring in real time the longitudinal profile of the dose delivered in the patient. This is possible by detecting the secondary particles produced by the interaction of the beam in the tissues. The position of the Bragg peak can be correlated to the charged particles emission point distribution measurement. The tracking device will be able to provide a fast response on the dose pattern by tracking the secondary charged fragments. The tracks are detected using 6 planes of scintillating fibers, providing the 3D coordinates of the track intersection with each plane. The fibers planes are followed by a plastic scintillator and by a small calorimeter built with a pixelated Lutetium Fine Silicate (LFS) crystal. A complete detector simulation, followed by the event reconstruction, has been performed to determine the achievable monitoring spatial resolution.

Purpose We describe the functioning of a novel device, aimed to assess patient head position after a pneumatic retinopexy. Methods We enrolled patients with the clinical diagnosis of rhegmatogenous retinal detachment. All patients were asked to wear a specially designed headband with a monitoring device composed of an accelerometer, gyroscope, and magnetometer, powered by a 3.7V lithium battery. Every 200 ms, the device measured neck flexion and extension, left and right rotation, and left and right flexion. Patients were asked to come back the next morning for follow-up and headband retrieving. Results The device was worn an average of 19.17 ± 2.1 hours and performed a mean number of 57,670 ± 8663 measurements without power failures or program errors. An acceptable head position was kept for a mean of 3.33 ± 1.8 hours. The hardest axis to maintain was the right and left flexion of the neck (5.5 ± 2.54 hours of acceptable positioning). Conclusion Real-time monitoring of patient head position after a vitreoretinal procedure is feasible. Maintaining a fixed head position for more than 5 consecutive hours is difficult to achieve and physicians should consider this difficulty when planning treatment. Translational relevance In addition to a significant improvement to the basic design of similar devices, our device allows for assessment of patient adherence to postoperative instructions objectively for the first time to our knowledge. This information could be used in the future to elaborate more detailed position nomograms to improve outcomes.

Phone lost has been a major problem these days. This case can happened because of the user own fault (he place it in the wrong place and forget it) or because of intentional phone stealing. Seeing many of this missing case we try to develop a system for tracking and securing a missing phone. Android platform is selected because it is one of the best operating system for mobile phone right now and the user growth is very promising. This application will give an extra security when a phone gone missing, as we know we store a lot of sensitive data on our phone. The system work flow is very simple actually, our application will be on standby and monitor command that it received via SMS and it will work in the background so user won’t be get any distraction from this application. Using these commands user can lock his phone, sound the phone alarm, delete his phone data, get his phone data, and get his phone last location. This application have some other feature too, like lock his phone when someone change his phone card and send the new number that attach in his phone to the owner. When system get any request about phone's last position then system will process that request to get phone's latitude and longitude via GPS, after that system will quietly send it to the owner.

Study Objective To determine whether economy of instrument movement can differentiate between skills levels during intracorporeal suturing using a box trainer model. Design Prospective cohort study (Canadian Task Force classification II-2). Setting Skills laboratory of a university teaching hospital. Subjects Forty-two volunteers participated including 19 medical students without previous laparoscopic experience (novices), 12 residents in obstetrics and gynecology (intermediates), and 11 practitioners of intracorporeal suturing who had performed at least 200 laparoscopic procedures including advanced surgery (experts). Interventions Each participant performed 3 consecutive standardized intracorporeal sutures using a box trainer, and instrument movements were recorded using the TrEndo tracking device. Measurements and Main Results Time, path length, motion in depth, and motion smoothness of the instrument tips were recorded. Performance in the 3 groups differed significantly (p Conclusion The construct validity has been suggested for time, path length, motion in depth, and motion smoothness for assessment of the laparoscopic suturing task using a box trainer. An expert level has been set for training and assessment purposes. The addition of economy of movement to time to complete the task has the potential to refine acquisition of skills.

La caractéristique statique courant-tension d'un générateur photovoltaïque présente un point de fonctionnement où la puissance électrique débitée dans la charge est maximale. Les coordonnées de ce point dépendent de nombreux paramètres dont l'éclairement, la température, l'état de vieillissement des cellules. Pour fonctionner à tout instant à la puissance maximale, nous adaptons la charge à courant continu (1,5 kW) à l'aide d'un hacheur à transistor puis nous réalisons sur ce système un asservissement extrémal. Par principe, ce dispositif recherche en permanence le point de fonctionnement optimal quelle que soit l'origine des perturbations qui le modifient.