bluuebunny/crossref_metadata_2025_split huggingface dataset:
PREDICTION OF TOTAL ELECTRON CONTENT OF THE IONOSPHERE USING NEURAL NETWORK
Authors: Homam Mariyam Jamilah 
Published: May 2016

This paper presents the prediction of hourly Vertical Total Electron Content (VTEC) using a neural network by utilizing the data from a GPS Ionospheric Scintillation and TEC Monitor (GISTM) receiver for six years (from 2005 to 2010) during low to medium solar activity (Sunspot number (SSN) between 0.0 and 42.6). Several network configurations were investigated to observe the effect of the number of neurons, and hidden layers. Overall testing process for several network set-up yielded Root Mean Square Error (RMSE) value of 3 to 7 TECU, absolute error of 2 to 6 TECU and relative error of 8% to 28%. Testing using April 2010 to November 2010 data (SSN from 8.0 to 25.2) produced RMSE value of 2.95 to 3.88 TECU,absolute error of 2.39 to 3.09 TECU and relative error of 8.11% to 16.18%, which are within the acceptable range.
STUDY ON FEED-IN-TARIFF (FIT) FOR BIPV SYSTEM; A MALAYSIA SCENARIO
Authors: Thanakodi S. , Nazar N.S.M. , Othman N.A. , Hidzir H.D.M. , Shah S.S.H. 
Published: May 2016

Feed-In Tariff (FiT) was introduced in Malaysia in 2004 and has been undergone many stages to make its implementation in Malaysia successful. The first Building Integrated Photovoltaic (BIPV) introduced in Malaysia is Suria 1000 under the supervision of Pusat Tenaga Malaysia (PTM). The aim of this paper was to study the FiT and BIPV implementation in Malaysia. It is observed that Malaysian did not invest in BIPV due to its expensive investment. The FiT Calculator was developed to prove the benefits of FiT in BIPV by practically calculating the investment and profit in the long run which was after 21 years of implementation. FiT Calculator was developed using Microsoft Visual Basic 2010 and variable parameter such as the solar irradiation, types of solar panel and inverter were studied to obtain the estimation of power output, the annual income, net income and the payback period of BIPV. Results of all case studies were verified with MBIPV mileage report and the built FiT Calculator has shown up to 96.89% accuracy against the case study done.
RF ATTENUATION CALIBRATION SYSTEM IN THE FREQUENCY RANGE OF 9 KHZ TO 10 MHZ
Authors: Widarta Anton 
Published: May 2016

An accurate RF attenuation calibration system in the frequency range of 9 kHz to 10 MHz is developed at NMIJ, to meet the demand in recent EMC regulations that require traceability of measurements to national standard. The system works based on the RF substitution technique, in which a resistive step-attenuator is used as a reference standard and a general-purpose receiver as a precision level detector. Attenuation values of the standard are determined by calibration at single frequency, i.e., 1 MHz using the NMIJ Primary Attenuation Standard system based on the voltage ratio of the IVD. The system is very simple and higher dynamic range (>100 dB) is obtained by introducing toroidal ferrite chokes in the circuit to minimize the common mode current effects.
ANALYSIS OF POWER CONSUMPTION SAR-ADC DYNAMIC COMPARATOR
Authors: R. Rusli Julie , Salleh Noor Shelida , M. Isa Masnita , Tan KY , Shafie Suhaidi 
Published: May 2016

Due to the high demand of ultra-low power in digital application, the needs of energy efficient analog-to-digital converter (ADC) are really essential. The comparator being an important part of successive approximation register (SAR)-ADC needs to have optimum performance under low power condition. This paper presents the comparison on power consumption together with the output performance flow power SAR-ADC dynamic comparators from three different design proposed by previous researchers. The three circuits is simulated and compared in terms of power consumption, regeneration time, reset time and output transient. The simulation is using Cadence Spectre and setup with 0.18µm CMOS technology, VDD at 0.8V and clock speed 2 at MHz. The analysis results obtained provides the lowest voltage input different (ΔVin) possible for double tail dynamic comparator using 0.18µm CMOS technology while adhering to the 45 corner process requirement. The results can be used as references for further design of ultra-low power dynamic comparator.
UTILIZATION OF HIGH-SPEED DSP ALGORITHMS OF CYCLIC REDUNDANCY CHECKING (CRC-15) ENCODER AND DECODER FOR CONTROLLER AREA NETWORK
Authors: Serfa Juan Ronnie O. , Kim Hi Seok 
Published: May 2016

Advanced driver assistance system (ADAS) performs an increasing improvement in active road safety and driving convenience. Controller Area Network (CAN) is now getting popular because of its expanding applications and widely utilizations in low-cost embedded systems from automation to medical industry. While implementing an effective and efficient mechanism for clock synchronization, serial operation causes the reduction of CAN transmission rate can have an adverse impact on the real-time applications of systems employing this protocol. Also, maintaining the reliability of this technology especially in safety services, a reliable system needs certain requirements like glitches management and troubleshooting in order to avoid certain occurrences of transmission error. In this paper we present a simulated Cyclic Redundancy Checking (CRC) encoder and decoder that perform high speed error detection for CAN using CRC-15. Digital Signal Processing (DSP) algorithms were used, namely pipelining, unfolding and retiming to attain the feasible iteration bound and critical path that is appropriate for CAN system. The source code for Encoder and Decoder has been formulated in Verilog Hardware Description Language (HDL) from actual simulation to implementation of this CRC-15 for CAN system.
TRANSIENT THERMAL PERFORMANCE PREDICTION METHOD FOR PARABOLIC TROUGH SOLAR COLLECTOR UNDER FLUCTUATING SOLAR RADIATION
Authors: Suwa Tohru , Heng ShyeYunn 
Published: May 2016

As the effect of the global warming is becoming noticeable, the importance for environmental sustainability has been raised. Parabolic trough solar thermal collector system, which is one of the solutions to reduce the carbon dioxide emission, is a mature technology for electricity generation. Malaysia is a tropical country with long daytime, which makes suitable for solar thermal applications with parabolic trough solar thermal collectors. However, the high humidity causes the solar radiation to fluctuate. In order to simulate the solar thermal collectors’ performance at an early design stage of solar thermal power generation systems, fast still accurate transient thermal performance prediction methodis required. Although multiple transient thermal simulation methodologies exist, they are not suited especially at an early design stage where quick but reasonably accurate thermal performance prediction is needed because of their long calculation time. In this paper, a transient thermal prediction method is developed to predict exit temperature of parabolic trough collectors under fluctuating solar radiation. The method is governed by simple summation operations and requires much less calculating time than the existing numerical methods. If the radiation heat loss at the parabolic trough collector tube surface is small, the working fluid temperature rise may be approximated as proportional to the receiving heat flux. The fluctuating solar radiation is considered as a series of heat flux pulses applied for a short period of time. The time dependent solar collector exit temperature is approximated by superimposing the exit temperature rise caused by each heat flux pulse. To demonstrate the capabilities of the proposed methodology, the solar collector exit temperature for one-day operation is predicted. The predicted solar collector exit temperature captures the trend of a finite element analysis result well. Still, the largest temperature difference is 38.8K and accuracy is not satisfactory. Currently, the accuracy of the proposed method is being improved. At the same time, its capabilities are being expanded.
BLOCK DIAGONALIZATION PRECODING FOR MULTIUSER –MIMO DOWNLINK CHANNEL
Authors: Mat Zain Nur Asniffah , Abdul Razak Nur Idora , Idris Mohd Syarhan 
Published: May 2016

The transmission of data in broadcast channel is not a straightforward process; on the receiver side, there could be difficulties in coordinating signal detection. In this paper, the use of Block Diagonalization (BD) to mitigate the inter-user interferences for this work will be investigated. This paper will probe the bit error rate (BER) performances of BD within various parameters number of antennas, and the number of users, K. Computer simulation, matrix laboratory (MATLAB) tools will be utilised and the result of simulation will be shown through demonstrating uses by more users and lesser antennas, which is better than having more antennas with fewer users in the BD precoding method.
Reviewer Acknowledgements
Authors: Smith Robert 
Published: May 2016

Journal of Education and Training Studies (JETS) would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether JETS publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue. Reviewers for Volume 4, Number 6 Cynthia M. Compton David A. Compton Donna Smith Elena Jerves Enisa Mede Hoi-yung Leung Intakhab Khan Laima Kyburiene Lorna Enerva Mara Carsote Marcie Zaharee Mustafa Çakır Richard Beresford Richard H. Martin Richard Penny Sahar Younes Othman Torok Marianna Wang Kin Chiu Yerlan Seisenbekov Robert Smith Editorial Assistant On behalf of, The Editorial Board of Journal of Education and Training Studies Redfame Publishing 9450 SW Gemini Dr. #99416 Beaverton, OR 97008, USA URL: http://jets.redfame.com
Reviewer Acknowledgements
Authors: Johnson Patricia 
Published: May 2016

Studies in Media and Communication (SMC) would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether SMC publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue. Reviewers for Volume 4, Number 1 Antonio García Gómez Arash Riasi Aslı Sezgin Begoña Montero-Fleta Camelia Cmeciu Christian Lamour Diego Santos Vieira de Jesus Dorina Ticu Kunle Olufemi Aramide Muharrem Eksi Nina Gunnarsson Philemon Bantimaroudis Simone Tosoni Xin Shuai Young Joon Lim Patricia Johnson Editorial Assistant On behalf of, The Editorial Board of Studies in Media and Communication Redfame Publishing 9450 SW Gemini Dr. #99416 Beaverton, OR 97008, USA URL: http://smc.redfame.com
An Efficient FPGA Architecture with High-Performance 2D DWT Processor for Medical Imaging
Authors: Arasu S. P. Valan , Baulkani S. 
Published: May 2016

Medical image fusion is the process of deriving vital information from multimodality medical images. Some important applications of image fusion are medical imaging, remote control sensing, personal computer vision and robotics. For medical diagnosis, computerized tomography (CT) gives the best information about denser tissue with a lesser amount of distortion and magnetic resonance image (MRI) gives the better information on soft tissue with little higher distortion. The main scheme is to combine CT and MRI images for getting most significant information. The need is to focus on less power consumption and less occupational area in the implementations of the applications involving image fusion using discrete wavelet transform (DWT). To design the DWT processor with low power and area, a low power multiplier and shifter are incorporated in the hardware. This low power DWT improves the spatial resolution of fused image and also preserve the color appearance. Also, the adaptation of the lifting scheme in the 2D DWT process further improves the power reduction. In order to implement this 2D DWT processor in field-programmable gate array (FPGA) architecture as a very large scale integration (VLSI)-based design, the process is simulated with Xilinx 14.1 tools and also using MATLAB. When comparing the performance of this low power DWT and other available methods, this high performance processor has 24%, 54% and 53% of improvements on the parameters like standard deviation (SD), root mean square error (RMSE) and entropy. Thus, we are obtaining a low power, low area and good performance FPGA architecture suited for VLSI, for extracting the needed information from multimodality medical images with image fusion.
Splitting a contraction of a simple curve traversed m times
Authors: Chambers Gregory R. , Liokumovich Yevgeny 
Published: May 2016

Suppose that [Formula: see text] is a [Formula: see text]-dimensional oriented Riemannian manifold, and let [Formula: see text] be a simple closed curve on [Formula: see text]. Let [Formula: see text] denote the curve formed by tracing [Formula: see text] [Formula: see text] times. We prove that if [Formula: see text] is contractible through curves of length less than [Formula: see text], then [Formula: see text] is contractible through curves of length less than [Formula: see text]. In the last section we state several open questions about controlling length and the number of self-intersections in homotopies of curves on Riemannian surfaces.
Growth hormone deficiency and metabolic disorders after radiotherapy and chemotherapy of malignant tumors of the posterior cranial fossa
Authors: Tselovalnikova Tatiana Y. , Pavlova Maria G. , Zilov Alexey V. , Yudina Alla E. , Mazerkina Nadezhda A. , Zheludkova Olga G. , Kotlyarevskaya Evgenia Y. , Arefyeva Irina A. , Gerasimov Andrey N. , Medvedeva Olga A. 
Published: May 2016

Endocrine disorders are common in patients after treatment for brain tumors in childhood. Growth hormone (GH) deficiency is the most common consequence of cranial irradiation. Objective — to evaluate the prevalence of GH deficieny and metabolic disorders in patients after treatment for malignant tumors of the posterior cranial fossa (MT PCF) in childhood. Material and methods. In this study 40 patients (21 men, 19 women) who had undergone treatment for MT PCF were assessed. Patients underwent surgery, chemotherapy and craniospinal irradiation (CSI) in a dose of 34.9±1.6 Gy with a boost to the PCF 51.3±9.2 Gy. Age at the time of the survey — 19.8±3.05 years; age at the time of treatment — 10.9±3.4 years; follow-up — 7.2±4.2 years. Patient’s anthropometric and laboratory parameters were measured, GH failure was diagnosed by two tests – insulin tolerance test (ITT) and glucagon stimulation test (GST). Results. According to ITT GH deficiency was observed in 82.1% and according to GST in 60.0% of patients. When comparing two tests GST showed 100% specificity, but lower sensitivity (72.2%). Manifestation of GH deficiency depends on the age at the time of treatment (p=0.002). There is significant correlation between age at the time of treatment and SDS of final height (r=0.632; p<0.001). We found a significant correlation between age at the time of treatment and BMI (r=–0,327; p=0.04). Dyslipidemia occurred in 50% of cases. Insulin resistance was recorded in 16.7% of patients. We found significant correlation between the HOMA-IR and BMI (r=0.336; p=0.034). Conclusions. In patients after treatment for MT PCF in childhood GH deficiency and metabolic disorders is highly prevalent. This group of patients should be monitored by endocrinologist for timely detection and treatment of GH deficiency and metabolic complications.
Antibodies against NALP5 and it’s role in hypoparathyroidism in autoimmune polyglandular syndrome type 1
Authors: Sozaeva Leila S. , Orlova Elizaveta M. , Oftedal Bergithe , Kareva Maria A. , Peterkova Valentina A. , Dedov Ivan I. , Husbye Eystein Sverre 
Published: May 2016

Hypoparathyroidism is one of major components of autoimmune polyglandular syndrome type 1 (APS type 1) with a prevalence 73—83%. The protein NALP5 has been described previously as an antigen of parathyroid glands. Aim — to investigate antibodies against NALP5 in patients with APS type 1. Material and methods. Seventy nine patients with APS type 1 were included in the study. Radio-immune assay was used for detecting antibodies against NALP5. Results. The correlation between hypoparathyroidism and high levels of antibodies against NALP5 was found (p<0.001). Sensitivity of the method was 69,4%, specificity — 83,3%, positive predictive value — 93,5%, negative predictive value — 44,1%. Correlations between other components of the disease and high levels of the antibodies were not found. Conclusions. We found a positive correlation between antibodies against NALP5 and hypoparathyroidism in APS type 1 patients. We did not find correlations between antibodies against NALP5 and other components of APS type 1.
Molecular and genetic features of primary hyperparathyroidism in young patients
Authors: Mamedova Elizaveta O. , Mokrysheva Natalya G. , Pigarova Ekaterina A. , Voronkova Iya A. , Kuznetsov Sergey N. , Vasilyev Evgeny V. , Petrov Vasily M. , Kuznetsov Nikolay S. , Rozhinskaya Liudmila Y. , Tiulpakov Anatoly N. 
Published: May 2016

When primary hyperparathyroidism (PHPT) is diagnosed in a young patient in the absence of other clinical manifestations differential diagnosis between a sporadic form of PHPT and PHPT as the first manifestation of one of hereditary syndromes may be challenging. Diagnosis of sporadic or hereditary PHPT determines the extent of surgical intervention, a strategy for further observation and treatment, and the need for examination and treatment of first-degree relatives. Aim of the study — to determine genetic characteristics of PHPT with manifestation at a young age (<40 years old) with clinically sporadic PHPT and familial isolated hyperparathyroidism (FIHP).Material and methods. 40 patients with manifestation of PHPT at the age younger than 40 years, 4 of which with FIHP, were included in the study. In 11 patients Sanger sequencing of MEN1 gene was performed (ABI 3130 Genetic Analyser, «Applied Biosystems», USA). 37 patients underwent next-generation sequencing (NGS) (Ion Torrent PGM, Thermo Fisher Scientific — Life Technologies, USA) using a panel of candidate genes (MEN1, CASR, CDC73, CDKN1A, CDKN1B, CDKN1C, CDKN2A, CDKN2C, CDKN2D). Results. In 3 (7,5%) patients (1 of which with FIHP) we revealed germline heterozygous mutations in MEN1 gene: in exon 9 p.D418N, exon 3 p.R176Q, intron 3 с.654+1G>A. In 4 (4/40, 10%) patients we revealed germline heterozygous mutations in CDC73 gene: 3 nonsense mutations in patients with parathyroid carcinoma — in exon 3 p.R91X, exon 6 p.Q166X, exon 7 p.R229X, and 1 missense mutation in a patient with parathyroid hyperplasia in exon 8 p.R263C. Conclusions. In the majority of cases (75%) PHPT in young patients without positive family history is sporadic. Search for germline mutations in the genes, leading to development of hereditary forms of PHPT (first of all in MEN1 and CDC73), is appropriate in young patients with positive family history, or when positive family history may be suspected, and in patients with parathyroid carcinoma. In the majority (75%) of FIHP cases search for other, probably yet unknown, genes is necessary.
Description of the first genetically confirming case with Donahue’s syndrome in Russia
Authors: Tikhonovich Yulia V. , Malievsky Oleg A. , Tyul'pakov Anatoly 
Published: May 2016

Syndrome Donahue (leprechaunism) is a rare form of neonatal diabetes mellitus associated with INSR gene mutations. There are three types of insulin resistance syndrome: Donohue syndrome, Rabson—Mendenhall syndrome and insulin resistance type A. These syndromes are distinguished from one another by severity of symptoms, age of onset and age of death. Donohue and Rabson—Mendenhall syndromes are associated with biallelic mutations in the α-subunit or/and β-subunit of INSR gene and are characterized by more severe phenotype and poor prognosis. Patients with Donohue syndrome usually die within the first two years of life. Life expectancy of patients with Rabson—Mendenhall syndrome is 5—15 years. Most patients with insulin resistance type A have heterozygous mutations in the β-subunit and demonstrate mild phenotype. Here, we describe the first genetically confirmed case of syndrome Donahue in the Russian Federation.
Periodicity, almost periodicity for time scales
and related functions
Authors: Wang Chao , Agarwal Ravi P. , O’Regan Donal 
Published: May 2016

Abstract
In this paper, we study almost periodic and changing-periodic time scales considered byWang and
Agarwal in 2015. Some improvements of almost periodic time scales are made. Furthermore, we introduce a
new concept of periodic time scales in which the invariance for a time scale is dependent on an translation
direction. Also some new results on periodic and changing-periodic time scales are presented.
Cadmium and Lead Thiosemicarbazide Complexes: Precursors for the Synthesis of CdS Nanorods and PbS nanoparticles
Authors: Mlondo S.N. , Revaprasadu N. , Christian P. , O'Brien P. 
Published: May 2016

AbstractWe report the synthesis of cadmium and lead thiosemicarbazide complexes. The single x-ray crystal structure of lead complex is reported. The cadmium thiosemicarbazide complex was thermolysed in hexadecylamine (HDA) at 140°C and 180°C to give CdS nanorods. The transmission electron microscopy (TEM) and XRay diffraction (XRD) measurements show that the reaction temperature has the influence on the size and shape of the nanorods. The lead thiosemicarbazide was thermolysed in tri-n-octylphosphine oxide (TOPO) at 240°C to yield hexagonally shaped nanoparticles of PbS. The XRD confirms a face centred cubic rock salt structure.
Variación estacional en la composición química de resinas y aceites esenciales de Liquidambar styraciflua de Hidalgo, México
Authors: Rasgado-Bonilla Fátima A. , Soto-Hernández Ramón Marcos , Conde-Martínez Víctor , Vibrans Heike , Cibrián-Tovar David 
Published: May 2016

La resina de Liquidambar styraciflua (Altingiaceae) fue colectada en temporada de sequía y lluvia durante 2013, en las comunidades Santa Lucía, Tianguistengo, Xochimilco y Xalapa en el estado de Hidalgo, México. El aceite esencial de la resina se obtuvo por hidrodestilación. Xalapa obtuvo el mejor rendimiento de aceite esencial con 9.3 %, en época de sequía. La resina y el aceite se analizaron por cromatografía en capa fina y cromatografía de gases acoplada a espectrometría de masas, respectivamente. El análisis por cromatografía en capa fina mostró mayor número de compuestos en época de sequía. Se calculó la relación de frentes en ambas temporadas, algunos valores coincidieron con los valores reportados para los ácidos cinámico y benzoico, así como del cinamato de cinamilo. Un total de 52 compuestos fueron encontrados por cromatografía de gases acoplada a espectrometría de masas, los cuales variaron en cada temporada. Los compuestos mayoritarios correspondieron al alcohol dihidro cinámico, estireno, cardeno, alcohol de cinamilo y alfa-pineno. Tres de los compuestos encontrados han sido reportados en el aceite esencial de hojas y tallos de L. styraciflua , estos son el beta-mirceno, allo-aromadendreno y gama-cadineno. Los compuestos principales encontrados en los aceites esenciales coinciden entre las diferentes procedencias, por lo que el aprovechamiento comercial del styrax mexicano debe ser viable desde el punto de vista de su composición.