456,305 results match your criteria Electromagnetic Biology and Medicine [Journal]


Photonic topological phases in dispersive metamaterials.

Sci Rep 2018 Dec 14;8(1):17881. Epub 2018 Dec 14.

Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan.

We analyze the photonic topological phases in dispersive metamaterials which satisfy the degenerate condition at a reference frequency. The electromagnetic duality allows for the hybrid modes to be decoupled and described by the spin-orbit Hamiltonians with pseudospin 1, which result in nonzero spin Chern numbers that characterize the topological phases. In particular, the combined Hamiltonian of the hybrid modes complies with a fermionic-like pseudo time-reversal symmetry that ensures the Kramers degeneracy, leading to the topological protection of helical edge states. Read More

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December 2018

Efficacy and safety of the pulsed electromagnetic field in osteoarthritis: a meta-analysis.

BMJ Open 2018 Dec 14;8(12):e022879. Epub 2018 Dec 14.

Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan Province, China.

Objective: To investigate the efficacy and safety of the pulsed electromagnetic field (PEMF) therapy in treating osteoarthritis (OA).

Design: Meta-analysis.

Data Sources: PubMed, Embase, the Cochrane Library and Web of Science were searched through 13 October 2017. Read More

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December 2018

Fluorescence Hyperspectral Imaging of Oil Samples and Its Quantitative Applications in Component Analysis and Thickness Estimation.

Sensors (Basel) 2018 Dec 13;18(12). Epub 2018 Dec 13.

National Engineering Research Center of Optical Instrumentation, Centre for Optical and Electromagnetic Research, Zhejiang University, Hangzhou 310058, China.

The fast response and analysis of oil spill accidents is important but remains challenging. Here, a compact fluorescence hyperspectral system based on a grating-prism structure able to perform component analysis of oil as well as make a quantitative estimation of oil film thickness is developed. The spectrometer spectral range is 366⁻814 nm with a spectral resolution of 1 nm. Read More

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December 2018

Echo Preprocessing to Enhance SNR for 2D CS-Based ISAR Imaging Method.

Sensors (Basel) 2018 Dec 13;18(12). Epub 2018 Dec 13.

Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei 230027, China.

A new CS-based inverse synthetic aperture radar (ISAR) imaging framework is proposed to enhance both the image performance and the robustness at a low SNR. An ISAR echo preprocessing method for enhancing the ISAR imaging quality of compressed sensing (CS) based algorithms is developed by implementing matched filtering, echo denoising and matrix optimization sequentially. After the preprocessing, the two-dimensional (2D) SL0 algorithm is applied to reconstruct an ISAR image in the range and cross-range plane through a series of 2D matrices using the 2D CS theory, rather than converting the 2D convex optimization problem to the one-dimensional (1D) problem in the image reconstruction process. Read More

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December 2018

Investigation of Electromagnetic Resonance Rewarming Enhanced by Magnetic Nanoparticles for Cryopreservation.

Langmuir 2018 Dec 14. Epub 2018 Dec 14.

The lack of effective rewarming technique restricted the successful cryopreservation of organ or large tissues by vitrification. The conversion of electromagnetic (EM) energy into heat provides a possible solution for the rewarming process for the cryopreservation. In this work, an EM resonance rewarming system was set up with dynamic feedback control and power feeding optimization. Read More

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December 2018

[Application of image-guided system in endoscopic sinus and skull base surgery].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Dec;32(24):1856-1859

Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China.

To evaluate the applicative value of image-guided system in endoscopic sinus and skull base surgeries. A total of 103 endoscopic surgical procedures were performed.All these procedures were conducted with the utilization of image-guided system, among which there were 92 cases of sinonasal-skull base surgery(including nasal sinuses resection of benign and malignant tumors involving skull base lesions, the cumulative orbital lesion resection of nasal sinus lesions, etc. Read More

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December 2018

Second Harmonic Light Manipulation with Vertical Split Ring Resonators.

Adv Mater 2018 Dec 14:e1806479. Epub 2018 Dec 14.

Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan.

The second harmonic generation (SHG) of vertical and planar split-ring resonators (SRRs) that are broken centro-symmetry configurations at the interface of metal surface and air is investigated. Strong interactions, better electromagnetic field confinements, and less leakage into the substrate for vertical SRRs are found. Experimental results show a 2. Read More

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December 2018

Induction of fat apoptosis by a non-thermal device: Mechanism of action of non-invasive high-intensity electromagnetic technology in a porcine model.

Lasers Surg Med 2018 Dec 14. Epub 2018 Dec 14.

Veterinary Research Institute, Brno, Czech Republic.

Objectives: While controlled thermal changes in subcutaneous tissue have been used to trigger apoptosis of fat cells and have been proven clinically efficacious, another mechanism of electromagnetic stress suggests that fat apoptosis could be achieved by a non-thermal manner as well. This animal model study investigates the use of a non-invasive high-intensity magnetic field device to induce apoptosis in fat cells.

Methods: Yorkshire pigs (N = 2) received one treatment (30 minutes) in the abdominal area using a High-Intensity Focused Electromagnetic (HIFEM) device. Read More

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December 2018
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Illusion Optics: Disguising with Ordinary Dielectric Materials.

Adv Mater 2018 Dec 13:e1805106. Epub 2018 Dec 13.

Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058, China.

Illusion devices are usually designed using transformation optics. Here, a new method is proposed to achieve optical illusions without external devices by elaborately manipulating the scattering potential of an object. In contrast to the conventional transformation optics method, which completely replaces one object by the image of another object using complementary\restoring media and a superlens, the method described here is more of a cosmetic operation for an object, which modifies the scattering pattern of the object to mimic another object by exchanging their scattering potentials in two symmetrical areas in the wave vector domain. Read More

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December 2018

Synthesis and Properties of Benzo-Fused Indeno[2,1-c]fluorenes.

Chem Asian J 2018 Dec 10. Epub 2018 Dec 10.

FRANCE.

A new set of fully-conjugated indenofluorenes has been synthesized and confirmed by solid-state structure analysis. The indeno[2,1-c]fluorenes and their benzo-fused analogues all contain the antiaromatic as-indacene core. The molecules possess high electron affinities and show a broad absorption that reaches into the near-IR region of the electromagnetic spectrum. Read More

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December 2018

Enhancement of surface plasmon polariton excitation via feedback-based wavefront shaping.

Opt Lett 2018 Dec;43(24):6021-6024

Surface plasmon polariton (SPP) is an electromagnetic excitation with efficient spatial confinement and high local field intensity at a metal/dielectric interface, which has been widely applied in many fields such as nanophotonics, imaging, biosensing, nonlinear optics, and so on. However, the destructive interference, which arises from wavevector mismatching between the spatial components of incident light and SPP, limits the effective excitation of SPP. Here, we experimentally demonstrate the enhancement of SPP excitation via a feedback-based wavefront shaping method in the Kreschmann configuration. Read More

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December 2018

The effect of chronic exposure to extremely low-frequency electromagnetic fields on sleep quality, stress, depression  and anxiety.

Electromagn Biol Med 2018 Dec 14:1-6. Epub 2018 Dec 14.

a School of Public Health , Shahroud University of Medical Sciences , Shahroud , Iran.

Exposure to extremely low-frequency electromagnetic fields (ELF-EMF) is inevitable in some industries. There are concerns about the possible effects of this exposure. The present study aimed to investigate the effect of chronic exposure to extremely low-frequency electromagnetic fields on sleep quality, stress, depression and anxiety among power plant workers. Read More

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December 2018

Essay: Half a Century of the Standard Model*,†.

Authors:
Steven Weinberg

Phys Rev Lett 2018 Nov;121(22):220001

Theory Group, Department of Physics, University of Texas at Austin.

The standard model is a quantum field theory that successfully accounts for the strong, weak, and electromagnetic interactions of the known elementary particles. In this essay I reminisce about the forerunners of the standard model, the beginnings of the model half a century ago, and its development and confirmation from then to the present. Read More

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November 2018

Probing the Combined Electromagnetic Local Density of Optical States with Quantum Emitters Supporting Strong Electric and Magnetic Transitions.

Phys Rev Lett 2018 Nov;121(22):227403

School of Engineering and Department of Physics, Brown University, Providence, Rhode Island 02912, USA.

We experimentally demonstrate that the radiative decay rate of a quantum emitter is determined by the combined electric and magnetic local density of optical states (LDOS). A Drexhage-style experiment was performed for two distinct quantum emitters, divalent nickel ions in magnesium oxide and trivalent erbium ions in yttrium oxide, which both support nearly equal mixtures of isotropic electric dipole and magnetic dipole transitions. The disappearance of lifetime oscillations as a function of emitter-interface separation distance confirms that the electromagnetic LDOS refers to the total mode density, and thus similar to thermal emission, these unique electronic emitters effectively excite all polarizations and orientations of the electromagnetic field. Read More

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November 2018

Fractional Angular Momentum at Topological Insulator Interfaces.

Phys Rev Lett 2018 Nov;121(22):227001

Institute for Theoretical Solid State Physics, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.

Recently, two fundamental topological properties of a magnetic vortex at the interface of a superconductor (SC) and a strong topological insulator (TI) have been established: The vortex carries both a Majorana zero mode relevant for topological quantum computation and, for a time-reversal invariant TI, a charge of e/4. This fractional charge is caused by the axion term in the electromagnetic Lagrangian of the TI. Here we determine the angular momentum J of the vortices, which in turn determines their mutual statistics. Read More

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November 2018

Dataset on significant role of Candesartan on cognitive functions in rats having memory impairment induced by electromagnetic waves.

Data Brief 2018 Dec 26;21:2390-2394. Epub 2018 Nov 26.

Rammal Hassan Rammal Research Laboratory, Physio-toxicity (PhyTox) research group, Lebanese University, Faculty of Sciences (V), Nabatieh, Lebanon.

Rapid growing of mobile phones users has raised about the possible effects of these electromagnetic waves (EMW) on human health. Many studies have examined the role of these EMW on biological systems, but the results are still contradictory and controversial. In addition to EMW, over-activation of angiotensin type 1 receptor (AT1R) has been associated with cognitive decline, incidence and progression of neurodegenerative diseases. Read More

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December 2018

Continuous-range tunable multilayer frequency-selective surfaces using origami and inkjet printing.

Proc Natl Acad Sci U S A 2018 Dec 13. Epub 2018 Dec 13.

School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332

The tremendous increase in the number of components in typical electrical and communication modules requires low-cost, flexible and multifunctional sensing, energy harvesting, and communication modules that can readily reconfigure, depending on changes in their environment. Current subtractive manufacturing-based reconfigurable systems offer limited flexibility (limited finite number of discrete reconfiguration states) and have high fabrication cost and time requirements. Thus, this paper introduces an approach to solve the problem by combining additive manufacturing and origami principles to realize tunable electrical components that can be reconfigured over continuous-state ranges from folded (compact) to unfolded (large surface) configurations. Read More

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December 2018

The Sommerfeld ground-wave limit for a molecule adsorbed at a surface.

Science 2018 Dec 13. Epub 2018 Dec 13.

Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany.

Using a mid-infrared emission spectrometer based on a superconducting nanowire single-photon detector (SNSPD), we observe the dynamics of vibrational energy pooling of CO adsorbed at the surface of a NaCl crystal. After exciting a majority of the CO molecules to their first vibrationally excited state (v = 1), we observe infrared emission from states up to v = 27. Kinetic Monte Carlo simulations show that vibrational energy collects in a few CO molecules at the expense of those up to eight lattice sites away by selective excitation of NaCl's transverse phonons. Read More

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December 2018
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Electrical Permittivity and Conductivity of a Graphene Nanoplatelet Contact in the Microwave Range.

Materials (Basel) 2018 Dec 11;11(12). Epub 2018 Dec 11.

Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, via G. Di Biasio 43, 03043 Cassino, Italy.

This paper investigates the electrical properties in the microwave range of a contact made by graphene nanoplatelets. The final goal is that of estimating the range of values for the equivalent electrical complex permittivity of a contact obtained by integrating low-cost graphene in the form of nanoplatelets (GNPs) into a high-frequency electrical circuit. To this end, a microstrip-like circuit is designed and realized, where the graphene nanoplatelets are self-assembled into a gap between two copper electrodes. Read More

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December 2018

Optical Fiber Magnetic Field Sensors Based on Magnetic Fluid: A Review.

Sensors (Basel) 2018 Dec 7;18(12). Epub 2018 Dec 7.

Instituto de Telecomunicações, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.

Magnetic field sensing is an important issue for many application areas, such as in the military, industry and navigation. The current sensors used to monitor this parameter can be susceptible to electromagnetic interferences, however due to their advantages over the traditional sensors, the optical fiber devices could be an excellent alternative. Furthermore, magnetic fluid (MF) is a new type of functional material which possesses outstanding properties, including Faraday effect, birefringence, tunable refractive index and field dependent transmission. Read More

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December 2018

Tensor Approach to DOA Estimation of Coherent Signals with Electromagnetic Vector-Sensor Array.

Sensors (Basel) 2018 Dec 7;18(12). Epub 2018 Dec 7.

College of Information Engineering, Shenzhen University, Shenzhen 518060, China.

This paper addresses the direction-of-arrival (DOA) estimation problem using a uniform rectangular array with electromagnetic vector-sensors in correlated/coherent signal environments. The polarization information is separated from the steering matrix to decorrelate the signals. By developing a tensorial structured received measurements of the array, we propose a tensor-based eigenvector DOA estimation method. Read More

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December 2018

Evaluation of Electroencephalogram Using Exact Low-Resolution Electromagnetic Tomography During Photic Driving Response in Patients with Migraine.

Neuropsychobiology 2018 Dec 13:1-6. Epub 2018 Dec 13.

Department of Neurology, Dokkyo Medical University, Mibu,

Background: Photophobia is a common feature of migraine, which may involve abnormal cortical information processing. In electroencephalograms (EEG), photic driving is known as a reaction to visual stimulation. Both photophobia and photic driving response are present during light stimulation. Read More

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December 2018

Learning Electromagnetic Navigational Bronchoscopy and Percutaneous Transthoracic Needle Biopsy (LEAP): A Pilot Study.

J Bronchology Interv Pulmonol 2018 Dec 12. Epub 2018 Dec 12.

Section of Interventional Pulmonology, Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD.

Background: Prior studies in pulmonology have examined the validity of procedural training tools, however, translation of simulation skill acquisition into real world competency remains understudied. We examine an assessment process with a simulation training course for electromagnetic navigational (EMN) bronchoscopy and percutaneous transthoracic needle aspiration (PTTNA).

Methods: A cohort study was conducted by subjects using EMN bronchoscopy and PTTNA. Read More

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December 2018

Nanoscale Core-Shell Hyperbolic Structures for Ultralow Threshold Laser Action: An Efficient Platform for the Enhancement of Optical Manipulation.

ACS Appl Mater Interfaces 2018 Dec 13. Epub 2018 Dec 13.

Plasmonic material has been emerged with multi-functionalities for its remarkable tailoring light emission, reshaping density of states (DOS) and focusing subwavelength light. However, restricted by its propagation loss and narrowband resonance in nature, it is a challenge issue for plasmonic material to provide a broadband DOS to advance its application. Here, we develop a novel nanoscale core-shell hyperbolic structure that possesses a remarkably coupling effect inside the multishell nanoscale composite owing to a higher DOS and longer time of collective oscillations of the electrons than the plasmonic-based pure metal nanoparticles. Read More

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December 2018

On-demand quantitative SERS bioassays facilitated by surface-tethered ratiometric probes.

Chem Sci 2018 Nov 31;9(42):8089-8093. Epub 2018 Aug 31.

Department of Chemistry , Shanghai Stomatological Hospital , State Key Laboratory of Molecular Engineering of Polymers , Institutes of Biomedical Sciences , Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , Shanghai 200438 , China . Email:

Reliable and user-friendly sensing of target analytes in complex biofluids is of fundamental importance to biological science and medicine. Surface-enhanced Raman spectroscopy (SERS) has proven to be capable of detecting molecules with high sensitivity, but achieving robust quantitative detection remains a challenge mainly because of the severe signal fluctuation at electromagnetic hot spots. Here, we describe an on-demand and quantitative SERS strategy for metabolite profiling based on a chip-based sensing device that adopts stable and surface-tethered small-molecule probes as Raman reporters. Read More

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November 2018

Scalable biosynthesis of melanin by the basidiomycete Armillaria cepistipes.

J Agric Food Chem 2018 Dec 12. Epub 2018 Dec 12.

Natural melanin features many interesting properties, including the ability to shield electromagnetic radiation, to act as scavenger for radical and reactive oxygen species and the capacity to chelate different metal ions. For these reasons, melanin is becoming increasingly relevant for the development of functional materials, for potential applications such as cosmetics, drug delivery and water purification. However, the extraction and purification of melanin from conventional sources (e. Read More

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December 2018

Radioluminescence in biomedicine: physics, applications, and models.

Phys Med Biol 2018 Nov 29. Epub 2018 Nov 29.

Radiation Oncology, Stanford University, 300 Pasteur Dr, MC 5132, Grant S277, Stanford, California, 94305, UNITED STATES.

The electromagnetic spectrum contains different frequency bands useful for medical imaging and therapy. Short wavelengths (ionizing radiation) are commonly used for radiological and radionuclide imaging and for cancer radiation therapy. Intermediate wavelengths (optical radiation) are useful for more localized imaging and for photodynamic therapy. Read More

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November 2018

Energy conversion from environmental fluctuations to coherent fields by Cooper-pair box quantum meta-materials.

Authors:
I-Lin Ho Watson Kuo

J Phys Condens Matter 2018 Nov 19. Epub 2018 Nov 19.

Department of Physics, National Chung-Hsing University, Taichung 402, TAIWAN, Taichung, TAIWAN.

Electromagnetic waves propagating in open Cooper-Pair Boxes (CPBs) system is studied by using Maxwell-Bloch equations and Lindblad master equation. The results demonstrate an ensemble of CPBs as highly non-linear meta-material for electromagnetic waves. Incorporating the CPBs in a ring resonator or a Fabry-Perot cavity, one finds that: (1) With weak environmental couplings and CPBs in superconducting phase dominant regime, the non-linearity is enhanced and the system exhibits regular optical hysteresis. Read More

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November 2018

Sensitivity analysis of neurodynamic and electromagnetic simulation parameters for robust prediction of peripheral nerve stimulation.

Phys Med Biol 2018 Nov 22. Epub 2018 Nov 22.

Athinoula A Martinos Center for Biomedical Imaging, Charlestown, Massachusetts, UNITED STATES.

<b>Purpose:</b> Peripheral Nerve Stimulation (PNS) has become an important limitation for fast MR imaging using the latest gradient hardware. We have recently developed a simulation framework to predict PNS thresholds and stimulation locations in the body for arbitrary coil geometries to inform the gradient coil optimization process. Our approach couples electromagnetic field simulations in realistic body models to a neurodynamic model of peripheral nerve fibers. Read More

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November 2018

Electromagnetic tracking-based freehand 3D quasi-static elastography with 1D linear array: a phantom study.

Phys Med Biol 2018 Nov 9. Epub 2018 Nov 9.

Center for Biomedical Imaging Research, Tsinghua University, Department of Biomedical Engineering, School of Medicine, Beijing, 100084, CHINA.

Recent developments in hardware and scanning protocol have advanced conventional 2D quasi-static elastography to 3D level, which provides an intuitive visualization of lesions. A 2D linear array or scanning mechanism is typically required for 3D quasi-static elastography, requiring expensive and specifically designed hardware. In this study, we propose a novel method based on a commercial electromagnetic tracking system for freehand 3D quasi-static elastography with 1D linear array. Read More

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November 2018

Simultaneous electromagnetic articulography and electroglottography data acquisition of natural speech.

J Acoust Soc Am 2018 Nov;144(5):EL380

Department of Linguistics, University of Southern California, Los Angeles, California 90089, USA

This paper reports on the concurrent use of electroglottography (EGG) and electromagnetic articulography (EMA) in the acquisition of EMA trajectory data for running speech. Static and dynamic intersensor distances, standard deviations, and coefficients of variation associated with inter-sample distances were compared in two conditions: with and without EGG present. Results indicate that measurement discrepancies between the two conditions are within the EMA system's measurement uncertainty. Read More

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November 2018

MEASUREMENT OF EMF EXPOSURE AROUND SMALL CELL BASE STATION SITES.

Radiat Prot Dosimetry 2018 Nov 29. Epub 2018 Nov 29.

Alphawave, 3 Meson Street, Technopark, Stellenbosch, South Africa.

As mobile network technologies and usage change, mobile network cells have become smaller to meet the increased demand for data throughput. Small cell base stations are frequently used as a mobile network deployment method and are predominantly installed to service areas with a high density of people and to cover a small geographical area. Various measurement programs of the electromagnetic field (EMF) exposure have been conducted around base stations in general and these results have been published. Read More

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November 2018
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Design and Evaluation of a Wireless Electrocardiogram Monitor in an Operating Room: A Pilot Study.

Anesth Analg 2018 Dec 11. Epub 2018 Dec 11.

From the Department of Anesthesia and Intensive Care, Military Teaching Hospital "Clermont Tonnerre", Brest, French.

Background: Wired electrocardiogram monitors are an important component of current perioperative monitoring. Wireless monitoring units could help reduce the number of cables attached to patients and thus improve anesthesia ergonomics and patient management. However, there is concern that electromagnetic interference generated by electrosurgical units may prevent effective wireless signals in the operating room. Read More

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December 2018
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Tuck Jump Assessment as an Indicator for Upper Extremity Injury.

Sports Med Int Open 2018 Jul 6;2(4):E113-E116. Epub 2018 Sep 6.

School of Kinesiology, Auburn University, Auburn, United States.

The purpose of this study was to determine if tuck jumps can be used as a dynamic movement assessment to ascertain a previous history of upper extremity injury in an overhead throwing sport. Seventy-one youth baseball and softball athletes (28 baseball/43 softball; 12.41±2. Read More

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Magnetic Resonance Elastography of Rodent Brain.

Front Neurol 2018 27;9:1010. Epub 2018 Nov 27.

Univ. Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, Lyon, France.

Magnetic resonance elastography (MRE) is a non-invasive imaging technique, using the propagation of mechanical waves as a probe to palpate biological tissues. It consists in three main steps: production of shear waves within the tissue; encoding subsequent tissue displacement in magnetic resonance images; and extraction of mechanical parameters based on dedicated reconstruction methods. These three steps require an acoustic-frequency mechanical actuator, magnetic resonance imaging acquisition, and a post-processing tool for which no turnkey technology is available. Read More

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November 2018

Preliminary study on alginate/NIPAM hydrogel-based soft microrobot for controlled drug delivery using electromagnetic actuation and near-infrared stimulus.

Biomed Microdevices 2018 Nov 16;20(4). Epub 2018 Nov 16.

Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea.

Currently, microrobots are receiving attention because of their small size and motility, which can be applied to minimal invasive therapy. Additionally, various microrobots using hydrogel with the characteristics of biocompatibility and biodegradability are also being developed. Among them, microrobots that swell and deswell in response to temperature changes caused by external near infrared (NIR) stimuli, focused ultrasound, and an alternating magnetic field, have been receiving a great amount of interest as drug carriers for therapeutic cell delivery. Read More

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November 2018
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Review of strategies for MRI based reconstruction of endocavitary and interstitial applicators in brachytherapy of cervical cancer.

Rep Pract Oncol Radiother 2018 Nov-Dec;23(6):547-561. Epub 2018 Jul 23.

Hospital La Fe-IRIMED, Department of Radiation Oncology, Medical Physics Section, Valencia, Spain.

Brachytherapy plays an essential role in the curative intent management of locally advanced cervical cancer. The introduction of the magnetic resonance (MR) as a preferred image modality and the development of new type of applicators with interstitial components have further improved its benefits. The aim of this work is to review the current status of one important aspect in the cervix cancer brachytherapy procedure, namely catheter reconstruction. Read More

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Role of Mitochondria in the Oxidative Stress Induced by Electromagnetic Fields: Focus on Reproductive Systems.

Oxid Med Cell Longev 2018 8;2018:5076271. Epub 2018 Nov 8.

Dept. of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.

Modern technologies relying on wireless communication systems have brought increasing levels of electromagnetic field (EMF) exposure. This increased research interest in the effects of these radiations on human health. There is compelling evidence that EMFs affect cell physiology by altering redox-related processes. Read More

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November 2018

Microwave plasmonic mixer in a transparent fibre-wireless link.

Nat Photonics 2018 Dec 29;12(12):749-753. Epub 2018 Oct 29.

ETH Zurich, Institute of Electromagnetic Fields (IEF), 8092 Zurich, Switzerland.

To cope with the high bandwidth requirements of wireless applications1, carrier frequencies are shifting towards the millimetre-wave and terahertz bands2-5. Conversely, data is normally transported to remote wireless antennas by optical fibres. Therefore, full transparency and flexibility to switch between optical and wireless domains would be desirable6,7. Read More

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December 2018
2 Reads

High-efficiency freezing-induced loading of inorganic nanoparticles and proteins into micron- and submicron-sized porous particles.

Sci Rep 2018 Dec 10;8(1):17763. Epub 2018 Dec 10.

Skolkovo Institute of Science and Technology, Moscow, 143026, Russia.

We demonstrate a novel approach to the controlled loading of inorganic nanoparticles and proteins into submicron- and micron-sized porous particles. The approach is based on freezing/thawing cycles, which lead to high loading densities. The process was tested for the inclusion of Au, magnetite nanoparticles, and bovine serum albumin in biocompatible vaterite carriers of micron and submicron sizes. Read More

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December 2018

Mobile phone use and incidence of brain tumour histological types, grading or anatomical location: a population-based ecological study.

BMJ Open 2018 Dec 9;8(12):e024489. Epub 2018 Dec 9.

Australian Centre for Electromagnetic Bioeffects Research, Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales, Australia.

Objective: Some studies have reported increasing trends in certain brain tumours and a possible link with mobile phone use has been suggested. We examined the incidence time trends of brain tumour in Australia for three distinct time periods to ascertain the influence of improved diagnostic technologies and increase in mobile phone use on the incidence of brain tumours.

Design: In a population-based ecological study, we examined trends of brain tumour over the periods 1982-1992, 1993-2002 and 2003-2013. Read More

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December 2018
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Exposure and health risks perception of extremely low frequency and radiofrequency electromagnetic fields and the effect of providing information.

Environ Res 2018 Nov 28;169:501-509. Epub 2018 Nov 28.

BIODONOSTIA Health Research Institute, Dr. Begiristain Pasealekua, San Sebastian 20014, Spain; Public Health Division of Gipuzkoa, Basque Government, 4 Av. de Navarra, San Sebastian 20013, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain.

Given that regardless of actual exposure levels, high-risk perceptions of electromagnetic fields of non-ionizing radiation (EMF-NIR) may cause health effects, it is important to understand the mechanisms behind perceptions in the general population. The aims of this study were to assess perceptions of both exposure and health-risk among mothers of the INMA (Environment and childhood)-Gipuzkoa child cohort; to explore possible determinants that explain such perceptions; and to evaluate whether providing information on exposure levels has any effect on perceptions. Overall, 387 mothers completed a questionnaire composed of four questions on perceived exposure and perceived health-risk of exposure to extremely low frequency (ELF) and radiofrequency (RF) fields answered on a Likert-type scale from 0 to 10. Read More

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November 2018

Health effects of wind turbines on humans in residential settings: Results of a scoping review.

Environ Res 2018 Nov 25;169:446-463. Epub 2018 Nov 25.

Institute and Policlinic of Occupational and Social Medicine, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany. Electronic address:

Introduction: As the global number of wind turbines has increased steadily in recent years, as has the number of studies about putative health effects in residential settings, it is the review purpose to give an overview of the characteristics and methodologies of the scientific literature around the topic in order to identify research gaps and to derive implications for research and practice. Additionally, study findings from higher-quality observational studies as well as results that seem to be of interest for the scientific and political debate are presented.

Methods: The scoping review was conducted following systematic review methods. Read More

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November 2018

Letter to the editor: Electromagnetic shark repellents - Environmental pollution.

Environ Pollut 2018 Dec 4;246:122-123. Epub 2018 Dec 4.

Robert J. Eovaldi Photography, 376 Mayfair St. Holland, MI, 49424, USA.

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December 2018

SBRT targets that move with respiration.

Phys Med 2018 Dec 17;56:19-24. Epub 2018 Nov 17.

Royal North Shore Hospital, Australia.

The technology of treating SBRT targets that move with respiration has undergone profound changes over the last 20 years. This review article summarizes modern image guidance to localize the target in real-time to account for intra-fraction motion. The state-of-the art respiratory motion compensation techniques will be discussed, including the determination and application of appropriate margins. Read More

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December 2018

Localization accuracy of two electromagnetic tracking systems in prostate cancer radiotherapy: A comparison with fiducial marker based kilovoltage imaging.

Phys Med 2018 Dec 16;56:10-18. Epub 2018 Nov 16.

Department of Oncology, Unit of Radiotherapy, Tampere University Hospital, POB-2000, 33521 Tampere, Finland; Department of Medical Physics, Medical Imaging Center, Tampere University Hospital, POB-2000, 33521 Tampere, Finland.

The aim of this study was to evaluate the localization accuracy of electromagnetic (EM) tracking systems RayPilot (Micropos Medical AB) and Calypso (Varian Medical Systems) in prostate cancer radiotherapy. The accuracy was assessed by comparing couch shifts obtained with the EM methods to the couch shifts determined by simultaneous fiducial marker (FM) based orthogonal kilovoltage (kV) imaging. Agreement between the methods was compared using Bland-Altman analysis. Read More

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December 2018

Electromagnetic Navigation-Guided One-Stage Dual Localization of Small Pulmonary Nodules.

Chest 2018 Dec;154(6):1462-1463

Division of Thoracic Surgery, Department of Surgery, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University, Taipei, Taiwan.

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December 2018

Planetary electromagnetic pollution: it is time to assess its impact.

Lancet Planet Health 2018 Dec;2(12):e512-e514

Institute for Health and the Environment, University at Albany, Rensselaer, NY, USA.

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December 2018

Mobile Phone Base Station Tower Settings Adjacent to School Buildings: Impact on Students' Cognitive Health.

Am J Mens Health 2018 Dec 7:1557988318816914. Epub 2018 Dec 7.

2 Department of Thoracic Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia.

The use of mobile phones has remarkably increased and become a basic need of daily life. Increasing subscriptions of mobile phones boost the installation of mobile phone base station towers (MPBSTs) in crowded commercial and residential areas including near school buildings. This study investigated the impact of exposure to radiofrequency electromagnetic field (RF-EMF) radiation generated by MPBSTs on cognitive functions. Read More

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December 2018

Fast sensing of imidacloprid residue in tea using surface-enhanced Raman scattering by comparative multivariate calibration.

Spectrochim Acta A Mol Biomol Spectrosc 2018 Nov 16;211:86-93. Epub 2018 Nov 16.

School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.

This study focused on the fabrication of a rapid, highly sensitive and inexpensive technique for the quantification of imidacloprid residue in green tea, based on surface-enhanced Raman scattering (SERS) using highly roughned surface flower shaped silver nanostructure (as SERS substrate) coupled with the chemometrics algorithm. The basic principle of this method is imidacloprid yielded SERS signal after adsorption on Ag-NF under laser excitation by the electromagnetic enhancement and the intensity of the peak is proportional to the concentration ranging from 1.0 × 10 to 1. Read More

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November 2018
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