bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Sampling Frequency on Isometric Midthigh-Pull Kinetics
Authors: Dos’Santos Thomas , Jones Paul A. , Kelly Jonathan , McMahon John J. , Comfort Paul , Thomas Christopher 
Published: January 2019

Purpose: Skeletal-muscle function can be evaluated using force-times curves generated via the isometric midthigh pull (IMTP). Various sampling frequencies (500–1000 Hz) have been used for IMTP assessments; however, no research has investigated the influence of sampling frequency on IMTP kinetics. Therefore, the purpose of this study was to investigate the influence of sampling frequency on kinetic variables during the IMTP, including peak force, time-specific force values (100, 150, and 200 ms), and rate of force development (RFD) at 3 time bands (0–100, 0–150, 0–200 ms). Methods: Academy rugby league players (n = 30, age 17.5 ± 1.1 y, height 1.80 ± 0.06 m, mass 85.4 ± 10.3 kg) performed 3 IMTP trials on a force platform sampling at 2000 Hz, which was subsequently down-sampled to 1500, 1000, and 500 Hz for analysis. Results: Intraclass correlation coefficients (ICC) and coefficients of variation (CV) demonstrated high within-session reliability for all force and RFD variables across all sampling frequencies (ICC ≥ .80, CV ≤ 14.4%) except RFD 0–100 and 0–150, which demonstrated slightly greater levels of variance (CV = 18.0–24.1%). Repeated-measures analysis of variance revealed no significant differences (P > .05, Cohen d ≤ 0.0171) in kinetic variables between sampling frequencies. Overall, high reliability was observed across all sampling frequencies for peak force, time-specific force, and RFD 0- to 200-ms variables, with no significant differences (P > .05) for each kinetic variable across sampling frequencies. Conclusions: Practitioners and scientists may consider sampling as low as 500 Hz when measuring peak force, time-specific force values, and RFD at predetermined time bands during the IMTP for accurate and reliable data.
Impact of chronic headache on workdays, unemployment and disutility in the general population
Authors: Kristoffersen Espen Saxhaug , Stavem Knut , Lundqvist Christofer , Russell Michael Bjørn 
Published: January 2019

BackgroundData on the socioeconomic burden of chronic headache (≥15 days/last month or>180 days/year) is lacking. This study investigated the impact of chronic headache on sickness absence, unemployment and disutility in the general population in Norway.Methods30 000 persons aged 30–44 from the general population were screened for chronic headache by a screening questionnaire. The responder rate was 71%. The International Classification of Headache Disorders was used. We analysed the association of chronic headache with lost workdays, days with ≥50% reduced productivity, sick leave, unemployment and disutility, as assessed with the Short-Form Six-Dimension (SF-6D) in separate regression analyses.ResultsEighty-three per cent (427/516, 79% women) of the eligible participants completed the data on workdays and utility. They reported a mean of 9.7 (SD 24.8) workdays lost over the last 3 months, because of headache. The mean disutility score (1-SF-6D score) was 0.41. Thirty-three per cent were on long-term (>1 year) sick leave. The OR for being on sick leave was 1.9 (95% CI 1.1 to 3.2, p=0.017) for those with secondary compared with primary chronic headache. Similarly, the OR for increased number of workdays lost to headache was 3.5 (95% CI 1.8 to 6.5, p<0.001) and for unemployment 1.7 (95% CI 1.0 to 2.9, p=0.07), for those with secondary compared with primary chronic headache. Secondary chronic headache, high headache frequency and high psychological distress were significantly associated with higher disutility score.ConclusionsThe burden of chronic headache in the general population is substantial with high rates of lost workdays and disutility.
Possible role for glucagon in the control of Paget’s disease of bone
Authors: Condon John Rhys 
Published: January 2019

AbstractPaget’s disease of bone is characterised by overactive osteoclasts that resorb bone at a higher rate than normal. Osteoblasts attempt to repair the damage by laying down new bone which in turn is resorbed leaving a chaotic pattern of lytic and dense sclerotic bone behind. Deformed bone enlarges, becomes vascularised, bends and fractures. No bone is exempt but the skull, pelvis, vertebrae and long bones are commonly affected. Pressure from pagetic bone impinges on the auditory, facial, optic, trigeminal nerves and the spinal cord, risking paraplegia or quadriplegia. Vascular complications include cardiac failure and vertebrobasilar insufficiency. Serum alkaline phosphatase and urine N-telopeptide were used to assess response to treatment with porcine, salmon and human calcitonins, glucagon and bisphonates given alone or in combination. Glucagon has few side effects and controls the disease very rapidly. It can be given alone but because remissions last a few months, repeat courses may be necessary to achieve a long-term permanent quiescent bone state. If complete disease remission is not achieved with the hormone alone, an oral or intravenous bisphosphonate is given at the end of glucagon treatment. Other options are a second-generation bisphosphonate given orally to patients who decline parenteral medication. It remains to be seen whether glucagon affects other bone disorders.
Partnership-level correlates of sexual risk taking within the sexual partnerships of young transwomen in San Francisco, California
Authors: Prescott Maximo Robert , Santos Glenn-Milo , Arayasirikul Sean , Wilson Erin 
Published: January 2019

ObjectivesLittle is known about the sexual networks of young transwomen, leaving a major gap in what we know about transmission dynamics and the elevated rates of HIV in this population. The objective of this study was to understand partnership-level factors associated with condomless anal sex among young transwomen.MethodsA secondary data analysis of the sexual partnerships of young transwomen was conducted using baseline data from the SHINE study. Generalised estimating equation logistic regressions were used to assess for partnership-level associations between partnership type, age, injection drug use and racial concordance, HIV seroconcordance, sexual role and condomless receptive (CRAI) and insertive anal intercourse (CIAI).ResultsOur analysis included 187 young transwomen that reported a total of 464 sexual partnerships where they had at least one episode of anal sex in the past 6 months. We found casual (n=232 or 50%) and commercial partnerships (n=106 or 22.8%) to be significantly associated with a lower odds of CIAI (OR=0.53, 95% CI 0.32 to 0.86 and OR=0.39, 95% CI 0.18 to 0.82) and CRAI (OR=0.30, 95% CI 0.19 to 0.47 and OR=0.35, 95% CI 0.2 to 0.62) compared with main partnerships (n=126 or 27.2%). Additionally, HIV-positive seroconcordant (n=25 or 5.4%, OR=4.05, 95% CI 1.44 to 11.40) and injection-drug using partnerships (n=25 or 5.4%, OR=3.66, 95% CI 1.34 to 9.95) were found to be significantly associated with an increased odds of CIAI among participants compared with HIV-negative seroconcordant (n=330 or 71.1%) and non-using partnerships (n=338 or 72.8%), respectively.ConclusionYoung transwomen, like other populations, engage in condomless sex more often with main than casual and commercial partners, suggesting a need for interventions that address sexual practices with steady main partners.
Taenia multiceps coenurosis in Tanzania: a major and under‐recognised livestock disease problem in pastoral communities
Authors: Hughes Ellen C , Kibona Tito K , de Glanville William A , Lankester Felix , Davis Alicia , Carter Ryan W , de Jong Rosanne M F , Nyasebwa Obed M , Claxton John R , Cleaveland Sarah , Allan Kathryn J 
Published: January 2019

AbstractA neurological syndrome of small ruminants, known locally as ‘ormilo’, has been reported among pastoralist livestock keepers in Tanzania. This study was carried out in four affected pastoral communities to determine the prevalence and associated risk factors, characterise the clinical signs and investigate the aetiology of the syndrome. Questionnaires were administered at all households (n=480) within four study villages. Overall, 94 per cent of households reported at least one case in the previous 12 months. By village, the individual‐level 12‐month period prevalence ranged from 11 per cent to 34 per cent, equivalent to about 10,000 small ruminants across the four villages. Thirty‐eight households were randomly selected for further investigation. Proprioceptive deficits and weakness were the most commonly observed clinical signs in affected animals. Brain and spinal cord cysts consistent with Taenia multiceps infection were detected in 32 (82 per cent) of 39 affected animals selected for postmortem examination. Feeding small ruminant brains to dogs was identified as an important risk factor for the syndrome, even in households that did not own dogs. This study confirms cerebral coenurosis as a major cause of small ruminant neurological disease in northern Tanzania and highlights the urgent need for further investigation to quantify the disease burden and to identify and implement control measures.
Optimal Generation Scheduling of Power System for Maximum Renewable Energy Harvesting and Power Losses Minimization
Authors: Banhthasit Bounthanh , Jamroen Chaowanan , Dechanupaprittha Sanchai 
Published: January 2019

<p>This paper proposes an optimal generation scheduling method for a power system integrated with renewable energy sources (RES) based distributed generations (DG) and energy storage systems (ESS) considering maximum harvesting of RES outputs and minimum power system operating losses. The main contribution aims at economically employing RES in a power system. In particular, maximum harvesting of renewable energy is achieved by the mean of ESS management. In addition, minimum power system operating losses can be obtained by properly scheduling operating of ESS and controllable generations. Particle Swam Optimization (PSO) algorithm is applied to search for a near global optimal solutions. The optimization problem is formulated and evaluated taking into account power system operating constraints. The different operation scenarios have been used to investigate the effective of the proposed method via DIgSILENT PowerFactory software. The proposed method is examined with IEEE standard 14-bus and 30-bus test systems. </p>
Comparing ICH-Leach and Leach descendents on Image Transfer using DCT
Authors: Taj Bennani , Ait Kbir Mhamed 
Published: January 2019

<span lang="EN-US">The development and miniaturization of CMOS (microphones and cameras) in the last years have allowed the creation of WMSN (Wireless Multimedia Sensor Network). Therefore, transferring multimedia content through the network has become an important field of research. It transmits the recorded multimedia data wirelessly from a node to another to reach the Sink (base station). Thus, routing protocols make a big contribution in this process, because they participate in optimizing the node's resource usage. Since Leach protocol was designed only to minimize energy consumption of the network .The goal of this paper is to compare our protocol in tnansfering images with other Leach protocol descendants .By using the application layer, we applied the jpeg compression using the frequency domain on images before sending them to the network.In this paper ,readers will find statistics concerning the lifetime of the network , the energy consumption and most importantly statistics about received images .Also, we used Castalia framework to simulate real conditions of transmission .simulation results proved the efficiency of our protocol by prolonging the lifetime of the network and transmitting more images with better quality compared to other protocols.</span>
Performance Analysis of Antenna Selection Techniques in MIMO-OFDM System with Hardware Impairments: Energy Efficiency perspective
Authors: Singal Anuj , Kedia Deepak 
Published: January 2019

<p>In this paper we propose a new MIMO-OFDM model in which we consider various antenna selection techniques like Bulk selection and Per-subcarrier selection etc. with hardware impairments such as non-linearties of amplifiers, quantization noise, phase noise and I-Q imbalance etc. As we know that the transceiver hardware impairments limit the channel capacity and the energy efficiency of MIMO-OFDM system, so we can not neglect the fundamental impacts of these hardware impairments {Kappa (0.05 0.1)} on the energy efficiency in the high SNR domain. Therefore we analyze the Energy Efficiency of Bulk and Per-subcarrier antenna selection techniques with or without hardware impairments. It has been observed that the energy efficiency decreases as the value of these hardware impairments increases. As we compared the Bulk antenna selection with the Per-subcarrier antenna selection scheme, the Per-subcarrier antenna selection requires more number of RF (radio frequency) chains and transmits power in comparison to the Bulk selection. Due to this, the Bulk antenna selection technique is more energy efficient than Per-subcarrier antenna selection.</p>
Dual Band to Wideband Pentagon-shaped Patch Antenna with Frequency Reconfigurability using EBGs
Authors: Dewan Raimi , A. Rahim M. K. , Hamid M. R. , M. Yusoff M. F. , Majid H. A. , F. Esmail B. A. 
Published: January 2019

<p>A dual band to wideband reconfigurable pentagon-shaped antenna with EBG unit cell is proposed. A minimal number of two EBG unit cell is deployed to realize frequency reconfigurable mechanism. By varying the state of the EBG the antenna is capable to change its dual band operation to wideband alternately. There are three cases that have been analysed, first case is the EBG incorporated antenna with ideal and second is with the active EBG. Subsequently, the third cases is the fabricated ideal EBG incorporated antenna. The dual band operation is at 1.8 GHz and 5.2 GHz while the wide band from 1.6 GHz to 2.37 GHz (770 MHz). The proposed reconfigurable antenna is suitable to be implemented for LTE (1.6 GHz), Wi-Fi (5.2 GHz), WiMAX (2.3 GHz) and cognitive radio application.</p>
Advances on Microwave Ceramic Filters for Wireless Communications (Review Paper)
Authors: Tsitsos Stelios 
Published: January 2019

<p>A review of the technological developments on ceramic monoblock filters and duplexers over the years is presented in this work. Early designs based on simulated and measured data are presented along with later designs based on accurate equivalent circuits as well as the use of evolution algorithms for optimal design. </p>
Design of 10 to 12 GHz Low Noise Amplifier for Ultrawideband (UWB) Syste
Authors: Islam Toulali , Zenkouar Lahbib 
Published: January 2019

<p>Balanced amplifier is the structure proposed in this article, it provides better performance. In fact, the single amplifier meets the specification for noise figure and gain but fails to meet the return loss specification due to the large mis-matches on the input &amp; outputs. To overcome this problem one solution is to use balanced amplifier topography. In this paper, a wide-band and highgain microwave balanced amplifier constituted with branch line coupler circuit is proposed. The amplifier is unconditionally stable in the band [9-13] GHz where the gain is about 20dB. The input reflection (S11) and output return loss (S22) at 11 GHz are -33.4dB and -33.5dB respectively.</p>
Evaluation and Analysis of Rate Control Methods for H.264/AVC and MPEG-4 Video Codec
Authors: Khan Imran Ullah , Ansari M. A. , Saeed S. Hasan , Khan Kakul 
Published: January 2019

<p class="Default"><span>Audio, image and video signals produce a vast amount of data. The only solution of this problem is to compress data before storage and transmission. In general there is the three crucial terms as, Bit Rate Reduction, Fast Data Transfer and Reduction in Storage. Rate control is a vigorous factor in video coding. In video communications, rate control must ensure the coded bitstream can be transmitted effectively and make full use of the narrow bandwidth. There are various test models usually suggested by a standard during the development of video codes models in order to video coding which should be suffienciently be efficient based on H.264 at very low bit rate. These models are Test Model Number 5 (TMN5), Test Model Number 8 for H.263, and Verification Model 8 (VM8) for MPEG-4 and H.264 etc. In this work, Rate control analysis for H.264, MPEG-4 performed. For Rate control analysis test model verification model version 8.0 is adopted.</span></p>
Forensic and Automatic Speaker Recognition System
Authors: Singh Satyanand 
Published: January 2019

<span lang="EN-US">Current Automatic Speaker Recognition (ASR) System has emerged as an important medium of confirmation of identity in many businesses, ecommerce applications, forensics and law enforcement as well. Specialists trained in criminological recognition can play out this undertaking far superior by looking at an arrangement of acoustic, prosodic, and semantic attributes which has been referred to as structured listening. An algorithmbased system has been developed in the recognition of forensic speakers by physics scientists and forensic linguists to reduce the probability of a contextual bias or pre-centric understanding of a reference model with the validity of an unknown audio sample and any suspicious individual. Many researchers are continuing to develop automatic algorithms in signal processing and machine learning so that improving performance can effectively introduce the speaker’s identity, where the automatic system performs equally with the human audience. In this paper, I examine the literature about the identification of speakers by machines and humans, emphasizing the key technical speaker pattern emerging for the automatic technology in the last decade. I focus on many aspects of automatic speaker recognition (ASR) systems, including speaker-specific features, speaker models, standard assessment data sets, and performance metrics</span>
Real-time Multi-object Face Recognition Using Content Based Image Retrieval (CBIR)
Authors: Fachrurrozi Muhammad , Saparudin Saparudin , Erwin Erwin , Mardiana Mardiana , Badillah Clara Fin , Erlina Junia , Lazuardi Auzan 
Published: January 2019

<p>Face recognition system in real time is divided into three processes, namely feature extraction, clustering, detection, and recognition. Each of these stages uses different methods, Local Binary Pattern (LBP), Agglomerative Hierarchical Clustering (AHC) and Euclidean Distance. Multi-face image search using Content Based Image Retrieval (CBIR) method. CBIR performs image search by image feature itself. Based on real time trial results, the accuracy value obtained is 61.64%. </p><p class="Abstract"> </p>
MICCS: A Novel Framework for Medical Image Compression Using Compressive Sensing
Authors: M Lakshminarayana , Sarvagya Mrinal 
Published: January 2019

The vision of some particular applications such as robot-guided remote surgery where the image of a patient body will need to be captured by the smart visual sensor and to be sent on a real-time basis through a network of high bandwidth but yet limited. The particular problem considered for the study is to develop a mechanism of a hybrid approach of compression where the Region-of-Interest (ROI) should be compressed with lossless compression techniques and Non-ROI should be compressed with Compressive Sensing (CS) techniques. So the challenge is gaining equal image quality for both ROI and Non-ROI while overcoming optimized dimension reduction by sparsity into Non-ROI. It is essential to retain acceptable visual quality to Non-ROI compressed region to obtain a better reconstructed image. This step could bridge the trade-off between image quality and traffic load. The study outcomes were compared with traditional hybrid compression methods to find that proposed method achieves better compression performance as compared to conventional hybrid compression techniques on the performances parameters e.g. PSNR, MSE, and Compression Ratio.
Simulation and Analysis of Modified DTC of PMSM
Authors: Kumar D.Kiran , Ram Das G.Tulasi 
Published: January 2019

This research paper describes the simulation and analysis of the modified DTC for Surface mounted Permanent Magnet Synchronous Motor (SPMSM) using PI controller. Among all of the various drive systems,PMSM is widely used for accurate speed and torque control, with greater efficiency, superior torque to inertia and high power density.The Conventional DTC secheme widely used for this purpose but it is failed to achieve desirable performance of the system for which the modified DTC secheme is propsed.The modified DTC algorithm controls the voltage vectors, directly from a simple look up table depending on outcome of the torque and indirectly flux controllers.The overall drive system can be implemented in SIMULINK/MATLAB environment.The modified DTC is validated with loading conditions.The simulated results are focused on the speed, settling time at loaded conditions, torque and flux linkages ripple and THD in the phase current for modified DTC applied to SPMSM.
Framework to Avoid Similarity Attack in Big Streaming Dat
Authors: Puri Ganesh Dagadu , Haritha D. 
Published: January 2019

<span>The existing methods for privacy preservation are available in variety of fields like social media, stock market, sentiment analysis, electronic health applications. The electronic health dynamic stream data is available in large quantity. Such large volume stream data is processed using delay free anonymization framework. Scalable privacy preserving techniques are required to satisfy the needs of processing large dynamic stream data. In this paper privacy preserving technique which can avoid similarity attack in big streaming data is proposed in distributed environment. It can process the data in parallel to reduce the anonymization delay. In this paper the replacement technique is used for avoiding similarity attack. Late validation technique is used to reduce information loss. The application of this method is in medical diagnosis, e-health applications, health data processing at third party.</span>
Design and Optimization of a High Gain Multiband Patch Antenna for Millimeter Wave Application
Authors: Zaidi A. , Baghdad A. , Ballouk A. , Badri A. 
Published: January 2019

<p>This paper presents an enhanced Quadri-band microstrip patch antenna, using defective slots in the ground plane, designed to operate in the millimeter wave band, formulated using cavity model and simulated by an EM-simulator, based on finite element method: HFSSv15 (High Frequency Structure Simulator). The proposed antenna incorporates two symmetric patterns of “U” shaped slots with an “I” shaped slot engraved in the middle of the ground plane. The resulting antenna has four frequency bands; the first resonant frequency is located in the Ka band, at about 27Ghz, the second at nearly 35Ghz, the third at 41Ghz and the last one at 51GHz. Those resonant frequencies could be shifted by tuning the slots dimensions introduced if the ground plane of the proposed antenna .</p><p> </p>