Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of the presence of a brain tumor on electromagnetic power absorption in the head of a cellular phone user

A pilot numerical study is conducted to investigate whether a tumor located in the outermost layers of the brain is able to change power absorption and temperature increase in the head, when exposed to the field radiated by a cellular phone. Results show that absorption into the head tissues different from the tumor is barely affected by its presence. On the other hand, inside the tumor, tumor dielectric properties highly influence electromagnetic power absorption, while temperature increments are mainly affected by tumor thermal properties rather than dielectric properties. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1264–1267, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25158
Label-free Surface Enhanced Raman Scattering (SERS) on Centrifugal Silver Plasmonic Paper (CSPP): A Novel Methodology for Unprocessed Biofluids Sampling and Analysis

Label-free SERS is a powerful bio-analytical technique in which molecular fingerprinting is combined with localized surface plasmons (LSPs) on metal surfaces to achieve high sensitivity. Silver and gold colloids are among the most common nanostructured substrates used in SERS, but since protein-rich samples such as serum or plasma can hinder the SERS effect due to protein–substrate interactions, they often require a deproteinization step. Moreover, SERS methods based on metal colloids often suffer from a poor reproducibility. Here, we propose a paper-based SERS sampling method in which unprocessed human serum samples are first soaked on paper strips (0.4 × 2 cm2), and then mixed with colloidal silver nanoparticles by centrifugation to obtain a Centrifugal Silver Plasmonic Paper (CSPP). The CSPP methodology has the potential to become a promising tool in bioanalytical SERS applications: it uses common colloidal substrates but without the need for sample deproteinization, while having a good reproducibility both in terms of overall spectral shape (r > 0.96) and absolute intensity (RSD < 10%). Moreover, this methodology allows SERS analysis more than one month after serum collection on the paper strip, facilitating storage and handling of clinical samples (including shipping from clinical sites to labs).
In-line yield prediction methodologies using patterned wafer inspection information

Due to the advances in in-line inspection technology it is now possible to obtain an early in-line prediction of yield. This paper introduces and compares two new in-line yield prediction methodologies: (1) multilayer critical area method and (2) defect-type-size kill-ratio method. These methods are more accurate than the past and other current approaches used in the semiconductor industry. The first method uses the design layout information along with the in-line defect data, whereas the second method uses the defect and yield data to empirically derive the kill-ratios. We demonstrate our methodologies using data collected in a real wafer fabrication facility at the polysilicon gate (Poly), and the first and second interconnect (Metal 1 and Metal 2) post etch inspection layers. We compare our in-line predictions with the actual yield.
Fluidic self-assembly of micromirrors onto surface micromachined actuators

We describe the fluidic self-assembly of ultra-flat, single-crystal silicon micromirrors onto a surface micromachined actuator array. Sub-micron precision self-alignment of the mirrors onto the actuator platforms is achieved by pattern matching hydrophobic binding sites on the underside of the mirror and on the platform.
Palm Oil Fuel Ash-Based Eco-Friendly Concrete Composite: A Critical Review of the Long-Term Properties

Rapid global infrastructural developments and advanced material science, amongst other factors, have escalated the demand for concrete. Cement, which is an integral part of concrete, binds the various individual solid materials to form a cohesive mass. Its production to a large extent emits many tons of greenhouse gases, with nearly 10% of global carbon (IV) oxide (CO2) emanating from cement production. This, coupled with an increase in the advocacy for environmental sustainability, has led to the development of various innovative solutions and supplementary cementitious materials. These aims to substantially reduce the overall volume of cement required in concrete and to meet the consistently increasing demand for concrete, which is projected to increase as a result of rapid construction and infrastructural development trends. Palm oil fuel ash (POFA), an industrial byproduct that is a result of the incineration of palm oil wastes due to electrical generation in power plants has unique properties, as it is a very reactive materials with robust pozzolanic tendencies, and which exhibits adequate micro-filling capabilities. In this study, a review on the material sources, affecting factors, and durability characteristics of POFA are carefully appraised. Moreover, in this study, a review of correlated literature with a broad spectrum of insights into the likely utilization of POFA-based eco-friendly concrete composites as a green material for the present construction of modern buildings is presented.
Uma abordagem neural para estimação de conjugado em motores de indução

Induction motors are widely used in several industrial sectors. However, the selection of induction motors is often inaccurate because, in most cases, the load behavior in the shaft is completely unknown. The proposal of this paper is to use artificial neural networks as a tool for dimensioning induction motors rather than conventional methods, which use classical identification techniques and mechanical load modeling. The potential of this approach is the simple hardware implementation since the methodology does not require torque sensor nor powerful computational processors. Simulation results are also presented to validate the proposed approach.
A threshold-based approach for muscle contraction detection from surface EMG signals

Surface electromyographic (SEMG) signals are commonly used as control signals in prosthetic and orthotic devices. Super cial electrodes are placed on the skin of the subject to acquire its muscular activity through this signal. The muscle contraction episode is then in charge of activating and deactivating these devices. Nevertheless, there is no gold standard" to detect muscle contraction, leading to delayed responses and false and missed detections. This fact motivated us to propose a new approach that compares a smoothed version of the SEMG signal with a xed threshold, in order to detect muscle contraction episodes. After preprocessing the SEMG signal, the smoothed version is obtained using a moving average lter, where three di erent window lengths has been evaluated. The detector was tuned by maximizing sensitivity and speci city and evaluated using SEMG signals obtained from the anterior tibial and gastrocnemius muscles, taken during the walking of ve subjects. Compared with traditional detection methods, we obtain a reduction of 3 ms in the detection delay, an increase of 8% in sensitivity but a decrease of 15% in speci city. Future work is directed to the inclusion of a temporal threshold (a double-threshold approach) to minimize false detections and reduce detection delays.
New technologies on telecom power conversion

The telecommunication market today is expanding rapidly as a result of many new application fields. Consequently, a good understanding of these trends is important to evaluate the consequences for power conversion and distribution. At the same time, new technologies have become available in the field of switched-mode power supplies. Here, the author describes how high frequency power conversion offers alternative solutions to traditional methods.
High and low perturbations of Choquard equations with critical reaction and variable growth

<p style='text-indent:20px;'>We are concerned with the existence of ground state solutions to the nonhomogeneous perturbed Choquard equation</p><p style='text-indent:20px;'><disp-formula> <label/> <tex-math id="FE1"> \begin{document}$ - \Delta_{p(x)} u + V(x)|u|^{p(x) - 2} u $\end{document} </tex-math></disp-formula></p><p style='text-indent:20px;'><disp-formula> <label/> <tex-math id="FE2"> \begin{document}$ = \left( \int_{\mathbb R^N} r(y)^{-1}|u(y)|^{r(y)}|x-y|^{-\lambda(x,y)} dy\right) |u|^{r(x)-2} u+g(x,u)\ \mbox{in}\ \mathbb R^N, $\end{document} </tex-math></disp-formula></p><p style='text-indent:20px;'>where the exponent <inline-formula><tex-math id="M1">\begin{document}$ r(\cdot) $\end{document}</tex-math></inline-formula> is critical with respect to the Hardy-Littlewood-Sobolev inequality for variable exponents. We first consider the case where the perturbation <inline-formula><tex-math id="M2">\begin{document}$ g(\cdot ,\cdot) $\end{document}</tex-math></inline-formula> is subcritical and we distinguish between the superlinear and sublinear cases. In both situations we establish the existence of solutions and we prove the asymptotic behavior of low-energy solutions in the case of high perturbations. Next, we study the case where the nonlinearity <inline-formula><tex-math id="M3">\begin{document}$ g(\cdot ,\cdot) $\end{document}</tex-math></inline-formula> is critical. We prove the existence of solutions both for low and high perturbations and we establish asymptotic properties of low-energy solutions. </p>
6-DOF Single-Inertial Mass, Isotropic Accelerometer With Optical Displacement Sensors

A novel design of high isotropy single mass six-degree-of-freedom (6-DOF) accelerometer has been developed and investigated. In the accelerometer, six spatial coordinates (three linear and three angular) of the inertial mass and their derivatives are observed by simple measurement of linear displacements of six optimally chosen points of the inertial mass. Calculation of the six acceleration components is then possible according to a specially developed mathematical algorithm. To provide the isotropy of the device’s sensitivity and to achieve the accuracy in the measurement of the linear and angular accelerations, three subsystems of the device — inertial, suspension, and measurement subsystems — have a spatially symmetrical structure. To provide the symmetrical structure of the inertial subsystem, the proof mass is manufactured from uniform material and has a cubic shape. All structural cavities in this cube (light guides and a light source cavity) are symmetrical relative to three coordinate axes. To provide the symmetry of suspension subsystem 24 elastic supports (springs) are mounted by three in all vertexes of the cube in the directions of X-, Y- and Z-axes. The springs have the same dimensions and stiffness. The damping elements (the rubber insets) are inserted into the springs. They are made of the same material and have the identical dimension. The measurement subsystem consists of six differential optical displacement sensors and the light source which is mounted in the center of the cube. Each optical sensor is based on three-component position-sensitive detectors (PSD) of a segmented type. This design ensures output signals that are independent of fluctuations in light source brightness and of optical and electromagnetic interferences. Optical sensors are mounted on the frame of the accelerometer and situated symmetrically opposite to the centers of the square faces of the cube. Six orts of measurement directions form three orthogonal pairs. The experimental model of isotropic 6-DOF accelerometer with differential optical measurement subsystem is manufactured, adjusted and tested. For this purpose the experimental apparatus consisting of the stand with standard accelerometers and computer-controlled data gathering and analysis system (multi-channel amplifier, analog-digital converter and LabView software system) is developed. The preliminary experiment results show that proposed device has high level of signal isotropy and it is hoped to have a good perspective for industrial application were it can replace the complex gyroscopic and combined multi-axis devices.Copyright © 2006 by ASME
The different brain areas occupied for integrating information of hierarchical linguistic units: a study based on EEG and TMS

Human linguistic units are hierarchical, and our brain responds differently when processing linguistic units during sentence comprehension, especially when the modality of the received signal is different (auditory, visual, or audio-visual). However, it is unclear how the brain processes and integrates language information at different linguistic units (words, phrases, and sentences) provided simultaneously in audio and visual modalities. To address the issue, we presented participants with sequences of short Chinese sentences through auditory or visual or combined audio- visual modalities, while electroencephalographic responses were recorded. With a frequency tagging approach, we analyzed the neural representations of basic linguistic units (i.e., characters/monosyllabic words) and higher-level linguistic structures (i.e., phrases and sentences) across the three modalities separately. We found that audio-visual integration occurs at all linguistic units, and the brain areas involved in the integration varied across different linguistic levels. In particular, the integration of sentences activated the local left prefrontal area. Therefore, we used continuous theta-burst stimulation (cTBS) to verify that the left prefrontal cortex plays a vital role in the audio-visual integration of sentence information. Our findings suggest the advantage of bimodal language comprehension at hierarchical stages in language-related information processing and provide evidence for the causal role of the left prefrontal regions in processing information of audio-visual sentences.
Kniegelenkbelastungen bei Landungen nach Sprüngen unter verschiedenen Bedingungen

Werden Sprünge in der Rehabilitation nach Sportverletzungen eingesetzt, sollte man neben der Trainingswirkung auch die Gelenkbelastung unterschiedlicher Sprung- und Landevarianten kennen. Mit eigenen Messungen haben die Autoren Interessantes herausgefunden.
Clinical and Ethical Considerations in the Treatment of Gender Dysphoric Children and Adolescents: When Doing Less Is Helping More

ABSTRACT Through an analysis of recently published treatment protocols, research findings and clinical experience, and guided by the principle of “first, do no harm,” the author argues that the use of pharmacological and surgical interventions in the treatment of gender dysphoric youth, especially in light of what is known about the transience of cross-gender identification in children, is mistaken both clinically and ethically. He further argues that psychotherapy, neglected by most of those advocating pharmacological and surgical interventions, is the best treatment option for these patients. The author elaborates some of the modifications of psychotherapeutic technique with both patients and their parents that he has found to be most effective with this population.
Analysis of toxic elements in leaves and fruits of loquat by inductively coupled plasma-mass spectrometry (ICP-MS)

This study aimed at analyzing the content of 10 toxic elements (Be, Al, Ti, As, Cd, Sn, Sb, Hg, Pb and Ag) in different tissues (leaf blade, seed, fruit peel and pulp) of loquat fruits, at different maturity stages (immature green, mature green and full ripe) from Fujian (Yun Xiao/Zhangzhou) in China, using inductively coupled plasma-mass spectrometry (ICP-MS), with microwave digestion. Results revealed that the concentrations of Be, Al and Hg in all observed tissues were significantly reduced with the change in maturity of fruits from immature green to full ripe. Whereas the toxicity of Ti, As, Cd, Sb and Pb were observed to be shifted from seed and pulp to peel and leaves. Tin concentration was increased in all observed tissues except seeds, while silver concentration was only increased in fruit peel of loquat. In sum up, toxic elements concentration detected in the fruit pulp of loquat, at full ripe stage, was found safe for human consumption.
Wideband nonlinear characteristics of random multiwalled carbon nanotubes network

In this work, multiwalled carbon nanotubes (MWCNTs) were randomly deposited in gaps of microstrip interdigitated capacitive (IDC) structure. Measured I‐V characteristics show nonlinear behavior of MWCNTs. Supported by an analytical Schottky‐based model, the nonlinear mechanism is attributed to semiconductor/metallic (S/M) junction properties. Measuring the IDC over a wide frequency band, from 1 kHz up to 3 GHz, we demonstrate there is a maximum frequency (∼10 MHz) beyond which the nonlinear behavior of the MWCNTs network vanishes. An equivalent lumped element circuit for MWCNTs‐based IDC describes well the measured behavior up to 3 GHz. Thanks to the extracted equivalent circuit, we demonstrate that the capacitive couplings between MWCNTs dominate over nonlinear effects above 10 MHz. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2648–2652, 2013
Domain‐specific and domain‐general neural network engagement during human–robot interactions

To what extent do domain‐general and domain‐specific neural network engagement generalize across interactions with human and artificial agents? In this exploratory study, we analysed a publicly available functional MRI (fMRI) data set (n = 22) to probe the similarities and dissimilarities in neural architecture while participants conversed with another person or a robot. Incorporating trial‐by‐trial dynamics of the interactions, listening and speaking, we used whole‐brain, region‐of‐interest and functional connectivity analyses to test response profiles within and across social or non‐social, domain‐specific and domain‐general networks, that is, the person perception, theory‐of‐mind, object‐specific, language and multiple‐demand networks. Listening to a robot compared to a human resulted in higher activation in the language network, especially in areas associated with listening comprehension, and in the person perception network. No differences in activity of the theory‐of‐mind network were found. Results from the functional connectivity analysis showed no difference between interactions with a human or robot in within‐ and between‐network connectivity. Together, these results suggest that although largely similar regions are activated when speaking to a human and to a robot, activity profiles during listening point to a dissociation at a lower level or perceptual level, but not higher order cognitive level.
Ancient Wheat and Quinoa Flours as Ingredients for Pasta Dough—Evaluation of Thermal and Rheological Properties

The aim of this study was to investigate thermal and rheological properties of selected ancient grain flours and to evaluate rheological properties of mixtures thereof represented by pasta dough and dry pasta. Flours from spelt, einkorn, and emmer ancient wheat varieties were combined with quinoa flour. All these flour sources are considered healthy grains of high bioactive component content. Research results were compared to durum wheat flour or spelt wheat flour systems. Differential scanning calorimeter (DSC) and a rapid visco analyzer (RVA) were used to investigate the phase transition behavior of the flours and pasting characteristics of the flours and dried pasta. Angular frequency sweep experiments and creep and recovery tests of the pasta dough were performed. The main components modifying the pasta dough structure were starch and water. Moreover, the proportion of the individual flours influenced the rheological properties of the dough. The durum wheat dough was characterized by the lowest values of the K′ and K″ parameters of the power law models (24,861 Pa·sn′ and 10,687 Pa·sn″, respectively) and the highest values of the instantaneous (J0) and retardation (J1) compliances (0.453 × 10−4 Pa and 0.644 × 10−4 Pa, respectively). Replacing the spelt wheat flour with the other ancient wheat flours and quinoa flour increased the proportion of elastic properties and decreased values of the J0 and J1 of the pasta dough. Presence of the quinoa flour increased pasting temperature (from 81.4 up to 83.3 °C) and significantly influenced pasting viscosities of the spelt wheat pasta samples. This study indicates a potential for using mixtures of spelt, einkorn, and emmer wheat flours with quinoa flour in the production of innovative pasta dough and pasta products.
Implementation of the RELAX algorithm

This correspondence presents a zoom-FFT based RELAX algorithm for estimating sinusoidal parameters in the presence of unknown colored noise. The amount of computations required by this algorithm is much less than the original zero-padding FFT based RELAX. Yet the estimation performance of the new algorithm is only slightly degraded as compared with the original one.
Use Cases for User-Centric Access Control for the Web

The rapidly developing Web environment provides use rs with a wide set of rich services as varied and complex as desktop applications. Those services are coll ctively referred to as \Web 2.0", with examples such as Google Docs, Wikipedia, Wordpress or Flickr, that allow users to create, manage and share their content online. By switching from deskt op applications to their Web equivalents more and more data gets released online. It is the user who creates data, who shares and disseminates this dat a, and who accesses it. Storing and sharing resources over a highly collaborative \Web 2.0" environment poses new security challenges. Access control, in p articular, is currently poorly addressed in such an environment and is not well suited to the increasin g amount of resources that is available online. We propose a novel approach to access control for the Web. Our approach puts a user in full control of their resources which may be scattered across multi ple Web applications. Unlike existing authorisation systems, it relies on a user's centrally located se curity requirements for those resources. In this pa per we present a set of use cases that could be addressed with our User-Centric Access Control approach. We discuss those use case scenarios from the perspecti ve of individuals and organisations that make use o f \Web 2.0" applications. We present examples of arch ite tures that could provide required functionality of each scenario. Additionally, we discuss those us e cases and point out challenges and problems that require further consideration. © 2009 University of Newcastle upon Tyne. Printed and published by the University of Newcastl e upon Tyne, Computing Science, Claremont Tower, Claremont Road, Newcastle upon Tyne, NE1 7RU, England. Bibliographical details MACHULAK, M.P., VAN MOORSEL, A. Use Cases for User-Centric Access Control for the Web [By] M. P. Machulak, A. Van Moorsel Newcastle upon Tyne: University of Newcastle upon T y e: Computing Science, 2009. (University of Newcastle upon Tyne, Computing Scienc e, Technical Report Series, No. CS-TR-1165)
Controlling swine manure odors using artificial floating scums

ABSTRACT VARIOUS artificial scum materials were evaluated for their durability and effectiveness in reducing odors evolving from stored liquid hog manure. Scum ma-terials evaluated included chopped cornstalks, sawdust, wood shavings, rice hulls, ground corncobs, and grass clippings, all with and without waste oil mixed in. Dairy manure was also used as a scum material. Durability of the scum materials was visually observed in an outdoor barrel test run from June through mid-October. The scum's odor reducing effectiveness was measured five times by an odor panel, and by running a 30-day test on the amount of ammonia and hydrogen sul-fide permeating the selected scums.