bluuebunny/crossref_metadata_2025_split huggingface dataset:
Oral administration of green plant-derived chemicals and antioxidants alleviates stress-induced cellular oxidative challenge
Authors: Beaven Elizabeth A. , Colthorpe Kay L. , Spiers Jereme G. , Chen Hsiao-Jou Cortina , Lavidis Nickolas A. , Albrecht Julie 
Published: May 2016

Abstract

Background:
This study examined the efficacy of the combination antioxidant, Formula 42 (F42), on cellular stress indicators in animal and human models of stress-induced oxidative stress.

Methods:
A sub-chronic psychological stress model in rodents was used to induce stress and oxidative stress indicators over a 10-day period during which animals received oral doses of F42 or water. Following treatment, body weight, plasma stress hormone corticosterone, and oxidative capacity were evaluated. In healthy human subjects, a randomized double-blind crossover study was used to examine the antioxidant effect of F42 or placebo in an exercise-induced oxidative stress model. Erythrocyte and plasma oxidative status was evaluated using the fluorescent activation of 2′,7′-dichlorofluorescin (DCF) as an indicator.

Results:
Oral administration of F42 reduced the corticosterone response to acute stress compared to vehicle but did not differ at the conclusion of the 10-day study. However, F42 administration did reduce stress-induced growth restriction and alleviate DCF activation in circulating erythrocytes by approximately 10% following 10 days of stress exposure. Oral administration of F42 also significantly reduced DCF activation by approximately 10% in healthy human subjects undergoing exercise-induced oxidative stress.

Conclusions:
Oral administration of F42 in rodents produces transient reductions in stress hormones and reduces stress indicators following sub-chronic psychological stress exposure. In humans, F42 acts as an early and potent antioxidant capable of scavenging free radicals within 30 min of ingestion.
Splicing Model and Hyper–Chaotic System for Image Encryption
Authors: Niu Hongye , Zhou Changjun , Wang Bin , Zheng Xuedong , Zhou Shihua 
Published: May 2016

Abstract
Encryption is an effective way to protect the image information from attacking by intruders in the transmission applications through the Internet. This study presents an image encryption scheme on the basics of the formal model of DNA computing-splicing system and hyper-chaotic system, which utilizes the instinct properties of hyper-chaotic system and splicing model while programming the method. In our proposed algorithm, the quaternary coding is used to split the plain image into four sub-sections so that we can’t get the cipher image without any one sub-section. This new method can be used to change the plain image information drastically. The experimental results and security analysis show that our method not only has a good security but also increases the resistance to common attacks such as exhaustive attacks, statistical attacks and differential attacks.
Output Feedback Control of Switched Nonlinear Systems: A Gain Scheduling Approach
Authors: Veselý Vojtech , Ilka Adrian 
Published: May 2016

Abstract
Switched controller design for nonlinear continuous and discrete-time systems under an arbitrary switching signal using the gain scheduling approach is addressed in this paper. The obtained controller design procedures for continuous and discrete-time systems are in the bilinear matrix inequality form. The proposed design procedure ensures multi parameter-dependent quadratic stability of the switched gain scheduled plant which is associative to a nonlinear plant model and optimal performance defined by quadratic gain scheduled parameters weighting cost function. Example demonstrates the effectiveness of the proposed approaches.
Traffic Simulation of GSM Cells with Half–Rate Connection Realization Possibility
Authors: Mitić Dragan , Lebl Aleksandar , Mileusnić Mladen , Trenkić Branimir , Markov Žarko 
Published: May 2016

Abstract
This paper presents simulation model for the analysis of characteristics of base station, which may establish half-rate connections. Accuracy of realized simulation model is analyzed comparing its results to a number of corresponding results, which are obtained by calculation or presented in referenced literature. These corresponding results are obtained, in the first case, analytically, solving the system of equations, which are modelling the system and, in the second case, from the literature, which deals with the similar systems. At the end, simulation model is implemented to analyze in detail several systems with different total number of traffic channels. The results of simulation pointed out how much probability of connection loss decreases in the case of great traffic load, when half-rate connections realization is implemented.
A Synchrophasor Assisted Hybrid State Estimator
Authors: Kirincic Vedran , Skok Srdjan , Frankovic Dubravko 
Published: May 2016

Abstract
The paper presents a Synchrophasor Assisted Hybrid State Estimator that utilizes the conventional SCADA measurements and the synchrophasors obtained from Phasor Measurement Units (PMUs). To take advantage of the high sampling frequency of the multiple sets of synchrophasors they are preprocessed in a recursive algorithm that provides the state estimate for the power system part observable by PMUs. The results are forwarded to an iterative procedure in which they are combined with SCADA measurements. The given solution was applied on the IEEE test systems with 14, 30 and 57 buses and its performance was compared with other state estimators. The filtering of measurement errors and convergence, while providing improved accuracy of the final state estimates of the developed methodology can be compared with other hybrid state estimators.
Discovering Block–Structured Parallel Process Models from Causally Complete Event Logs
Authors: Lekić Julijana , Milićev Dragan 
Published: May 2016

Abstract
α-algorithm is suitable to discover a large class of workflow (WF) nets based on the behaviour recorded in event logs, with the main limiting assumption that the event log is complete. Our research has been aimed at finding ways of discovering business process models based on examples of traces, ie, logs of workflow actions that do not meet the requirement of completeness. In this aim, we have modified the existing and introduced a new relation between activities recorded in the event log, which has led to a partial correction of the process models discovering technique, including the α-algorithm. We have also introduced the notion of causally complete logs, from which our modified algorithm can produce the same result as the α-algorithm from complete logs. The effect of these modifications on the efficiency of the process model discovering is mostly evident for business processes in which many activities can be performed in parallel. The application of the modified method for discovering block-structured models of parallel business processes is presented in this paper.
Domain Adaptation of Deep Neural Networks for Automatic Speech Recognition via Wireless Sensors
Authors: Gosztolya Gábor , Grósz Tamás 
Published: May 2016

Abstract
Wireless sensors are recent, portable, low-powered devices, designed to record and transmit observations of their environment such as speech. To allow portability they are designed to have a small size and weight; this, however, along with their low power consumption, usually means that they have only quite basic recording equipment (e.g. microphone) installed. Recent speech technology applications typically require several dozen hours of audio recordings (nowadays even hundreds of hours is common), which is usually not available as recorded material by such sensors. Since systems trained with studio-level utterances tend to perform suboptimally for such recordings, a sensible idea is to adapt models which were trained on existing, larger, noise-free corpora. In this study, we experimented with adapting Deep Neural Network-based acoustic models trained on noise-free speech data to perform speech recognition on utterances recorded by wireless sensors. In the end, we were able to achieve a 5% gain in terms of relative error reduction compared to training only on the sensor-recorded, restricted utterance subset.
Design and Experimental Evaluation of Quadrature Oscillator Employing Single FB–VDBA
Authors: Yesil Abdullah , Kacar Firat , Gurkan Koray 
Published: May 2016

Abstract
This paper presents an attractive and a new voltage-mode quadrature oscillator using a single Fully Balanced-Voltage Differencing Buffer Amplifier (FB-VDBA) as the active element. The circuit structure is very simple, consisting of merely one FB-VDBA, one resistor and two capacitors. The circuit is implemented using the commonly available OPA860 which results in low output impedance and high current drive capability. The proposed circuit also has a suitable architecture for IC production. Experimental results which are matched well with the theoretical assumptions are given.
Design of Gigahertz Tuning Range 5 GHz LC Digitally Controlled Oscillator in 0.18 μm CMOS
Authors: Jurgo Marijan , Navickas Romualdas 
Published: May 2016

Abstract
In this paper design and simulation of a 4.3 - 5.4 GHz LC digitally controlled oscillator (LC DCO) in IBM 7RF 0.18 μm CMOS technology are presented. Wide gigahertz tuning range is achieved by using two LC DCOs, sharing same structure. DCO is made of one NMOS negative impedance transistor pair and LC tank, which consists of high quality inductor and two switched capacitor arrays for coarse and fine frequency tuning. Coarse and fine tuning switched capacitor arrays are controlled using 6-bit and 3-bit binary words. To increase available frequency values, frequency divider is used. Structure of frequency divider is based on extended-true-single-phase-clock flip-flops. Divider is made of eight divide-by-2 cells connected in daisy chain, thus division values from 2 to 256 are available. Wide tuning range and high division values allows using such DCO with frequency divider in multi-standart transceivers. Whole device is supplied from a single 1.8 V voltage source. At highest frequency proposed device draws 90 mA current including all buffers. Phase noise is −116.4 dBc/Hz at 1 MHz offset from 5.44 GHz carrier. Designed dual DCO and frequency divider occupies about 0.4mm×0.5mm of chip space and whole chip, including pads, occupies 1.5mm × 1.5mm area of silicon.
Synthesis of Graphene on Ni/SiC Structure
Authors: Machac Petr , Hrebicek Tomas 
Published: May 2016

Abstract
graphene is a promising material with excellent electrical, thermal, optical and mechanical properties. Therefore, it is a material of high relevance for various applications in many branches of technique. Graphene has received much attention recently in scientific community. The contribution reports formation and characterization of few-layer graphene (FLG) films on a SiC substrate from nickel silicide supersaturated with carbon by annealing at a favourable low temperature.
Determination of finite difference coefficients for the acoustic wave equation using regularized least-squares inversion
Authors: Wang Yanfei , Liang Wenquan , Nashed Zuhair , Yang Changchun 
Published: May 2016

Abstract
Finite difference (FD) solutions of wave equations have been proven useful in exploration seismology. To yield reliable and interpretable results, the numerically induced error should be minimized over a range of frequencies and angles of propagation. Grid dispersion is one of the key numerical problems and there exist some methods to solve this problem in the literature. Traditionally, the spatial FD operator coefficients are only determined in the spatial domain; however, the wave equation is solved in the temporal and spatial domain simultaneously. Recently, some methods based on the joint temporal-spatial domains have been proposed to address this problem. Variable length coefficients methods are proposed in the literature to improve efficiency while preserving accuracy by using longer operators in the low velocity regions and shorter operators in the high velocity regions. To cope with the ill-conditioning of the linear system induced by long stencil FD operators, we study in this paper a regularizing simplified least-squares model to minimize the phase velocity error in the joint temporal-spatial domain with a variable length of coefficients. Different from our previous study, we determine FD coefficients on the regular grid instead of on the staggered grid. Though the regular grid FD methods are less precise, however, with a little increase of the operator length, the precision can be improved. Stability of the numerical solutions is enhanced by the regularization. Numerical simulations made on one-dimensional to three-dimensional examples show that our scheme needs shorter operators and preserves accuracy compared with the previous methods.
Direct and inverse source problems for a space fractional advection dispersion equation
Authors: Aldoghaither Abeer , Laleg-Kirati Taous-Meriem , Liu Da-Yan 
Published: May 2016

Abstract
In this paper, direct and inverse problems for a space fractional advection dispersion equation on a finite domain are studied. The inverse problem consists in determining the source term from final observations. We first derive the analytic solution to the direct problem which we use to prove the uniqueness and the unstability of the inverse source problem using final measurements. Finally, we illustrate the results with a numerical example.
Analysis of Single-Mode Fiber Link Performance for Attenuation in Long-Haul Optical Networks
Authors: Kaur Karamjit , Singh Hardeep 
Published: May 2016

AbstractIn the past decades, optical fiber has been widely used in communication system owing to low transmission losses, large information carrying capacity, small size, immunity to electrical interference and increased signal security. Focusing on increasing the network transmission capacity, control on the quality of transmission was the field that withdraws attention of research community. For this reason, fiber losses and their compensation remain the important design issue. In the present work, an effort is put in to design a system capable of doing error analysis of system for power losses taking place in the presence of attenuation effect. Attenuation is one of the important phenomena that determine the maximum possible distance between a transmitter and receiver or quantity and position of amplifiers and repeaters in optical networks. The mathematical model equations are obtained representing variation trends of bit error rate BER and
An Optical Packet Switch with Recirculation Limited Range Wavelength Converter Groups and Recirculation Optical Buffers
Authors: Li Jie 
Published: May 2016

AbstractThis paper focuses on performances of limited range wavelength converters (LRWCs) in resolving optical packet contentions. An optical packet switch is proposed, which uses recirculation LRWC groups and recirculation fiber delay lines (FDLs) to resolve optical packet contentions. In order to make full use of the LRWCs and the FDLs, a control algorithm is also proposed. Packet loss probability of the proposed switch versus the number of FDLs, the wavelength conversion range, and the number of LRWC groups are evaluated in detail.
Unusual phenotype of congenital adrenal hyperplasia (CAH) with a novel mutation of the CYP21A2 gene
Authors: Raisingani Manish , Contreras Maria F. , Prasad Kris , Pappas John G. , Kluge Michelle L. , Shah Bina , David Raphael 
Published: May 2016

AbstractGonadotropin independent sexual precocity (SP) may be due to congenital adrenal hyperplasia (CAH), and its timing usually depends on the type of mutation in the
A novel splice site mutation in the GNPTAB gene in an Iranian patient with mucolipidosis II α/β
Authors: Hashemi-Gorji Feyzollah , Ghafouri-Fard Soudeh , Salehpour Shadab , Yassaee Vahid Reza , Miryounesi Mohammad 
Published: May 2016

Abstract
Mucolipidosis type II α/β (ML II α/β) and mucolipidosis type III α/β (ML III α/β) have been shown to be caused by an absence or reduced level of uridine diphosphate (UDP)-N-acetylglucosamine-1-phosphotransferase enzyme (EC 2.7.8.17) activity, respectively. Both disorders are caused by mutations in the GNPTAB gene and are inherited in an autosomal recessive manner. Here we report a 2-year-old female patient being diagnosed as a case of ML II α/β due to coarse face, severe developmental delay, multiple dysostosis, noticeable increase of multiple lysosomal enzymes activity in plasma and normal acid mucopolysaccharides in urine. Mutational analysis of the GNPTAB gene has revealed a novel homozygous mutation in the patient (c.3250-2A>G) with both parents being heterozygote. Transcript analyses showed that this novel splice site mutation leads to exon 17 skipping and a frameshift afterwards (p.P1084_R1112del F1113Vfs*1). Consequently, we confirmed the association of this mutation with ML II α/β. Our finding expands the number of reported cases of this rare metabolic disorder and adds to the GNPTAB mutation database.
Reference intervals for iron-related blood parameters: results from a population-based cohort study (LIFE Child)
Authors: Rieger Kristin , Vogel Mandy , Engel Christoph , Ceglarek Uta , Thiery Joachim , Kratzsch Jürgen , Harms Kristian , Glock Fabian , Hiemisch Andreas , Kiess Wieland 
Published: May 2016

Abstract

Background: Pediatric reference intervals for iron-related parameters are determined continuously over time from a highly standardized sample collection by application of the R-package generalized additive models for location, scale and shape (GAMLSS), which is little known in laboratory medicine.

Methods: Two thousand seven hundred and seventy-eight samples from Leipzig research center for civilization diseases (LIFE) Child participants at the age of 2.5–19 years were analyzed on a Sysmex XN-9000 for hemoglobin and reticulocytes and on a Roche Cobas 8000 for transferrin and ferritin. Reference intervals were established by repeated model calculation by use of the LMS (λ-µ-σ) method from Cole with specifically weighted subsamples.

Results: Continuous and gender-specific reference intervals as well as smoothed percentile curves were established for hemoglobin, ferritin, reticulocytes and transferrin. In the case of repeated model calculations, single curves and averaged percentile curves were shown. The single curves outlined potential variations of the different parameter trends. The averaged percentile curves submitted a stable assessment of curve trends over time for iron-related parameters in childhood and adolescence.

Conclusions: For the first time current age- and gender- specific reference intervals are available by application of the R-package GAMLSS and the laboratory techniques applied here. Compared to earlier studies, previous findings can be completed and discrepancies related to different methodical approaches, can be pointed out. Relevant findings for the diagnosis of iron deficiency anemia, such as gender-dependent assessment of hemoglobin starting at the age of 11 instead of 15 [according to the World Health Organization (WHO)], are presented.
Tracking sub-atomic particles through the
Attribute Space
Authors: Babai M. , Kalantar-Nayestanaki N. , Messchendorp J. G. , Wilkinson M. H. F. 
Published: May 2016

Abstract
In this paper, we present the results of an application of attribute space morphological filters for
tracking sub-atomic particles in magnetic fields. For this purpose, we have applied the concept of attribute
space and connectivity to the binary images produced by charged particles passing through the tracking
detector for the future experiment PANDA. This detector could be considered as an undirected graph with
irregular neighbourhood relations. For this project, we rely only on the detector geometry. In addition, we
have extended the graph to estimate the z-coordinates of the particle paths. The result is an O(n2), proof
of concept algorithm with a total error of approximately 0.17; this value depends on track multiplicity and
particle type and its parameters. The results look promising; however, more work needs to be done to make
this algorithm applicable for the real-life case.
Efficient Computation of Greyscale Path
Openings
Authors: Schubert Herman , van de Gronde Jasper J. , Roerdink Jos B. T. M. 
Published: May 2016

Abstract
Path openings are morphological operators that are used to preserve long, thin, and curved structures
in images. They have the ability to adapt to local image structures,which allows them to detect lines that
are not perfectly straight. They are applicable in extracting cracks, roads, and similar structures. Although
path openings are very efficient to implement for binary images, the greyscale case is more problematic. This
study provides an analysis of the main existing greyscale algorithm, and shows that although its time complexity
can be quadratic in the number of pixels, this is optimal in terms of the output (if the full opening
transform is created). Also, it is shown that under many circumstances the worst-case running time is much
less than quadratic. Finally, a new algorithm is provided,which has the same time complexity, but is simpler,
faster in practice and more amenable to parallelization
Local 2D Pattern Spectra as Connected
Region Descriptors
Authors: Bosilj Petra , Wilkinson Michael H. F. , Kijak Ewa , Lefèvre Sébastien 
Published: May 2016

Abstract
We validate the usage of augmented 2D shape-size pattern spectra, calculated on arbitrary connected
regions. The evaluation is performed on MSER regions and competitive performance with SIFT descriptors
achieved in a simple retrieval system, by combining the local pattern spectra with normalized central
moments. An additional advantage of the proposed descriptors is their size: being half the size of SIFT,
they can handle larger databases in a time-efficient manner. We focus in this paper on presenting the challenges
faced when transitioning from global pattern spectra to the local ones. An exhaustive study on the
parameters and the properties of the newly constructed descriptor is offered, as well as performance results
from preliminary experiments, validating the usage of the descriptor. We also consider possible improvements
to the quality and computation efficiency of the proposed local descriptors.
Exceptional Tl-bearing manganese oxides from Zalas, Krakow area, southern Poland
Authors: Gołębiowska Bożena , Rzepa Grzegorz , Pieczka Adam 
Published: May 2016

Abstract
In the Permian rhyodacite quarry at Zalas near Krakow, southern Poland, thallium-bearing Mn oxides occur in a small fault zone cutting Middle Jurassic sandy limestone poorly encrusted by an oxidized polymetallic mineralization. The encrustation comprises sulphides (pyrite, chalcopyrite, chalcocite, covellite, galena, marcasite), native bismuth, hematite, goethite, cuprite, mottramite, iodargyrite, unrecognized Cu sulphates and Bi oxychlorides as supergene minerals, barite and rare tiny grains of gold. It is most likely connected with rejuvenation of Early-Paleozoic faults during the Alpine orogeny on the Oligocene–Miocene boundary. Rare Tlbearing Mn oxides occur in an outside zone of the encrustations, filling small fractures and voids in limestone forming the fault breccia. Tl contents, reaching 20.82wt% as Tl2O, exceed by more than two orders of magnitude those reported in similar minerals before, making the oxides unique on a world scale. The Tl-bearing Mn oxides from Zalas reflect intensive weathering of an older Tl-bearing sulphide mineralization in an arid climate, involving saline fluids delivered to the groundwater system as the nappe structure of the Carpathians was developing during the Sava tectonic phase Oligocene/Miocene boundary.
Crystal structure of 4,4′-bipiperidinium dichloride 0.12 hydrate, C10H22N2Cl2 · 0.12 H2O
Authors: Socha Paweƚ , Dobrzycki Lukasz 
Published: May 2016

Abstract
C10H22.24Cl2N2O0.12, orthorhombic, Cmca (no. 64), a = 9.6661(8) Å, b = 7.3063(6) Å, c = 19.3270(15) Å, V = 1364.94(19) Å3, Z = 4, R
gt
(F) = 0.0359, wR
ref
(F
2
) = 0.1009, T = 170 K.