bluuebunny/crossref_metadata_2025 huggingface dataset:
A Hybrid Non-destructive Measuring Method of Three-dimensional Profile of Through Silicon Vias for Realization of Smart Devices
Authors: Ahn Heulbi , Bae Jaeseok , Park Jungjae , Jin Jonghan
Published: October 2018

Smart devices have been fabricated based on design concept of multiple layer structures which require through silicon vias to transfer electric signals between stacked layers. Because even a single defect leads to fail of the packaged devices, the dimensions of the through silicon vias are needed to be measured through whole sampling inspection process. For that, a novel hybrid optical probe working based on optical interferometry, confocal microscopy and optical microscopy was proposed and realized for enhancing inspection efficiency in this report. The optical microscope was utilized for coarsely monitoring the specimen in a large field of view, and the other methods of interferometry and confocal microscopy were used to measure dimensions of small features with high speed by eliminating time-consuming process of the vertical scanning. Owing to the importance of the reliability, the uncertainty evaluation of the proposed method was fulfilled, which offers a practical example for estimating the performance of inspection machines operating with numerous principles at semiconductor manufacturing sites. According to the measurement results, the mean values of the diameter and depth were 40.420 µm and 5.954 µm with the expanded uncertainty of 0.050 µm (k = 2) and 0.208 µm (k = 2), respectively.
High Efficiency Inorganic/Inorganic Amorphous Silicon/Heterojunction Silicon Tandem Solar Cells
Authors: Park Jinjoo , Dao Vinh Ai , Kim Sangho , Pham Duy Phong , Kim Sunbo , Le Anh Huy Tuan , Kang Junyoung , Yi Junsin
Published: October 2018

We investigated high-efficiency two-terminal tandem photovoltaic (PV) devices consisting of a p/i/n thin film silicon top sub-cell (p/i/n-TFS) and a heterojunction with an intrinsic thin-layer (HIT) bottom sub-cell. We used computer simulations and experimentation. The short-circuit current density (Jsc) of the top sub-cell limits the Jsc of the p/i/n-TFS/HIT tandem PV device. In order to improve the Jsc of the top sub-cell, we used a buffer-layer at the p/i and i/n interface and a graded forward-profile (f-p) band gap hydrogenated amorphous silicon germanium active layer, namely i-layer, in the top sub-cell. These two approaches showed a remarkable raise of the top sub-cell’s Jsc, leading to the increase of the Jsc of the PV tandem device. Furthermore, in order to minimize the optical loss, we employed a double-layer anti-reflective coating (DL-ARC) with a magnesium fluoride/indium tin oxide double layer on the front surface. The reduction in broadband reflection on the front surface (with the DL-ARC) and the enhanced optical absorption in the long wavelength region (with the graded f-p band gap) resulted in the high Jsc, which helped achieve the efficiency up to 16.04% for inorganic-inorganic c-Si-based tandem PV devices.
External-beam partial breast irradiation in a supine versus prone position after breast-conserving surgery for Chinese breast cancer patients
Authors: Yu Ting , Xu Min , Sun Tao , Shao Qian , Zhang YingJie , Liu XiJun , Li FengXiang , Wang Wei , Bin Li Jian
Published: October 2018

To investigate the differences in target volumes and dosimetric parameters between the supine and prone positions for external-beam partial breast irradiation (EB-PBI) after breast-conserving surgery (BCS) for Chinese breast cancer patients, thirty breast cancer patients who underwent three-dimensional conformal radiation therapy (3DCRT) EB-PBI after BCS were enrolled. Supine and prone scan sets were acquired during free breathing for all patients. Target volumes and organs at risk (OARs) including the heart, ipsilateral lung and bilateral breast were contoured by the same radiation oncologist. For each patient, supine and prone EB-PBI plans were generated based on the same planning criteria. The clinical target volume (CTV) and planning target volume (PTV) in the prone position were significantly greater than those in the supine position (P = 0.003, 0.004, respectively). A 0.95 Gy reduction in the mean dose (Dmean) to the heart (P = 0.000) was apparent in the supine position compared to the prone position. The Dmean to the ipsilateral lung was significantly lower in the prone position than in the supine position (1.59 Gy vs. 1.72 Gy, P = 0.029). Therefore, for Chinese breast cancer patients, carrying out 3DCRT EB-PBI in the prone position during free breathing is feasible.
Expression of the Hutchinson-Gilford Progeria Mutation Leads to Aberrant Dentin Formation
Authors: Choi Hwajung , Kim Tak-Heun , Jeong Ju-Kyeong , Strandgren Charlotte , Eriksson Maria , Cho Eui-Sic
Published: October 2018

Hutchinson-Gilford progeria syndrome (HGPS) is a rare accelerated senescence disease, manifesting dental abnormalities and several symptoms suggestive of premature aging. Although irregular secondary dentin formation in HGPS patients has been reported, pathological mechanisms underlying aberrant dentin formation remain undefined. In this study, we analyzed the mandibular molars of a tissue-specific mouse model that overexpresses the most common HGPS mutation (LMNA, c.1824C > T, p.G608G) in odontoblasts. In the molars of HGPS mutant mice at postnatal week 13, targeted expression of the HGPS mutation in odontoblasts results in excessive dentin formation and pulp obliteration. Circumpulpal dentin of HGPS mutants was clearly distinguished from secondary dentin of wild-type (WT) littermates and its mantle dentin by considering the irregular porous structure and loss of dentinal tubules. However, the dentin was significantly thinner in the molars of HGPS mutants at postnatal weeks 3 and 5 than in those of WT mice. In vitro analyses using MDPC-23, a mouse odontoblastic cell line, showed cellular senescence, defects of signaling pathways and consequential downregulation of matrix protein expression in progerin-expressing odontoblasts. These results indicate that expression of the HGPS mutation in odontoblasts disturbs physiological secondary dentin formation. In addition, progerin-expressing odontoblasts secrete paracrine factors that can stimulate odontogenic differentiation of dental pulp cells. Taken together, our results suggest that the aberrant circumpulpal dentin of HGPS mutants results from defects in physiological secondary dentin formation and consequential pathologic response stimulated by paracrine factors from neighboring progerin-expressing odontoblasts.
Sensitivities of seven algal species to triclosan, fluoxetine and their mixtures
Authors: Bi Ran , Zeng Xiangfeng , Mu Lei , Hou Liping , Liu Wenhua , Li Ping , Chen Hongxing , Li Dan , Bouchez Agnes , Tang Jiaxi , Xie Lingtian
Published: October 2018

Increasing release of pharmaceuticals and personal care products (PPCPs) into aquatic ecosystems is a growing environmental concern. Triclosan and fluoxetine are two widely used PPCPs and frequently detected in aquatic ecosystems. In this study, the sensitivities of 7 algal species from 4 genera to triclosan, fluoxetine and their mixture were evaluated. The results showed that the inhibitory effect on algal growth (EC50-96h) of triclosan varied with 50 times differences among the 7 algal species.Chlorella ellipsoideawas the least susceptible species andDunaliella parvawas the most sensitive species to triclosan. The inhibitory effect of fluoxetine was less variable than triclosan. Slightly higher toxicity of fluoxetine than triclosan was shown in the 7 tested algal species. No consistent pattern of the effects from mixture of triclosan and fluoxetine was observed among the 7 algal species and among the 4 genera. Additive effects of the mixture occured in 4 species and antagonistic effects in the other 3 species but no synergistic effect was detected. The algal species might show some sign of phylogenetic response to triclosan, as evidenced by the wide range of differences in their sensitivity at the genus level. This study provides important data which could be beneficial for biomonitoring programs on the ecological risk (algal species diversity) of these two chemicals.
Statistical optimization of light intensity and CO2 concentration for lipid production derived from attached cultivation of green microalga Ettlia sp.
Authors: Kim Sungwhan , Moon Myounghoon , Kwak Minsoo , Lee Bongsoo , Chang Yong Keun
Published: October 2018

Attached cultivation systems have been receiving extensive attention as a breakthrough in microalgae cultivation technology. However, there is a lack of studies that emphasize precise optimization of important parameters in attached cultivation of microalgae. In this study, the effects of two major environmental parameters in photoautotrophic cultivation, light intensity and CO2 concentration, on the biomass and lipid surface productivity of Ettlia sp. YC001 were optimized by employing Response Surface Methodology (RSM) and validated experimentally. The optimum initial conditions for attached cultivation were use of seed from the late exponential phase (LE) and an inoculum surface density of 2.5 g/m2. By optimization, maximum biomass surface productivity of 28.0 ± 1.5 g/m2/day was achieved at 730 μE/m2/s with 8% CO2. The maximum lipid surface productivity was 4.2 ± 0.3 g/m2/day at 500 μE/m2/s with 7% CO2. Change of the fatty acid composition with respect to changes in environment parameters led to improvement of biodiesel quality at higher light intensity and higher CO2 concentration. Attached cultivation of Ettlia sp. YC001 has successfully produced biomass and lipids at a high production rate with relatively low light energy demand and high CO2 utilization.
Donor-derived cell-free DNA is associated with acute rejection and decreased oxygenation in primary graft dysfunction after living donor-lobar lung transplantation
Authors: Tanaka Shin , Sugimoto Seiichiro , Kurosaki Takeshi , Miyoshi Kentaroh , Otani Shinji , Suzawa Ken , Hashida Shinsuke , Yamane Masaomi , Oto Takahiro , Toyooka Shinichi
Published: October 2018

Donor-derived cell-free DNA (dd-cf-DNA) has been shown to be an informative biomarker of rejection after lung transplantation (LT) from deceased donors. However, in living-donor lobar LT, because small grafts from blood relatives are implanted with short ischemic times, the detection of dd-cf-DNA might be challenging. Our study was aimed at examining the role of dd-cf-DNA measurement in the diagnosis of primary graft dysfunction and acute rejection early after living-donor lobar LT. Immediately after LT, marked increase of the plasma dd-cf-DNA levels was noted, with the levels subsequently reaching a plateau with the resolution of primary graft dysfunction. Increased plasma levels of dd-cf-DNA were significantly correlated with decreased oxygenation immediately (p = 0.022) and at 72 hours (p = 0.046) after LT. Significantly higher plasma dd-cf-DNA levels were observed in patients with acute rejection (median, 12.0%) than in those with infection (median, 4.2%) (p = 0.028) or in a stable condition (median, 1.1%) (p = 0.001). Thus, measurement of the plasma levels of dd-cf-DNA might be useful to monitor the severity of primary graft dysfunction, and plasma dd-cf-DNA could be a potential biomarker for the diagnosis of acute rejection after LT.
Phospholipid transfer protein and alpha-1 antitrypsin regulate Hck kinase activity during neutrophil degranulation
Authors: Ochieng Pius , Nath Sridesh , Macarulay Reane , Eden Edward , Dabo Abdoulaye , Campos Michael , Jiang Xian-Cheng , Foronjy Robert F. , Geraghty Patrick
Published: October 2018

Excessive neutrophil degranulation is a common feature of many inflammatory disorders, including alpha-1 antitrypsin (AAT) deficiency. Our group has demonstrated that phospholipid transfer protein (PLTP) prevents neutrophil degranulation but serine proteases, which AAT inhibits, cleave PLTP in diseased airways. We propose to identify if airway PLTP activity can be restored by AAT augmentation therapy and how PLTP subdues degranulation of neutrophils in AAT deficient subjects. Airway PLTP activity was lower in AAT deficient patients but elevated in the airways of patients on augmentation therapy. Functional AAT protein (from PiMM homozygotes) prevented PLTP cleavage unlike its mutated ZZ variant (PiZZ). PLTP lowered leukotriene B4 induced degranulation of primary, secondary and tertiary granules from neutrophils from both groups (n = 14/group). Neutrophils isolated fromPltpknockout mice have enhance neutrophil degranulation. Both AAT and PLTP reduced neutrophil degranulation and superoxide production, possibly though their inhibition of the Src tyrosine kinase, Hck. Src kinase inhibitors saracatinib and dasatinib reduced neutrophil degranulation and superoxide production. Therefore, AAT protects PLTP from proteolytic cleavage and both AAT and PLTP mediate degranulation, possibly via Hck tyrosine kinase inhibition. Deficiency of AAT could contribute to reduced lung PLTP activity and elevated neutrophil signaling associated with lung disease.
Dynamics of nonspherical, fractal-like water-ice particles in a plasma environment
Authors: Chai Kil-Byoung
Published: October 2018

Plasmas containing small solid-state particles (also known as dust particles) are ubiquitous in nature and laboratories. Existing models typically assume that the dust particles are spherical but several observations and simulations indicate that a significant amount of dust particles are nonspherical. Because dust particles are not spherical they show different dynamics from spherical particles in a plasma environment namely, they align in the direction perpendicular to the force equilibrium line, rotate about their alignment axis due to the interaction between the dipole moment and the surrounding electric field, and show vortex motion while maintaining their alignment and rotation when they are exposed to a nonconservative drag force.
Stochastic fracture of additively manufactured porous composites
Authors: Keleş Özgür , Anderson Eric H. , Huynh Jimmy , Gelb Jeff , Freund Jouni , Karakoç Alp
Published: October 2018

Extrusion-based fused deposition modeling (FDM) introduces inter-bead pores into dense materials, which results in part-to-part mechanical property variations, i.e., low mechanical reliability. In addition, the internal structure of FDMed materials can be made porous intentionally to tailor mechanical properties, introduce functionality, reduce material consumption, or decrease production time. Despite these potential benefits, the effects of porosity on the mechanical reliability of FDMed composites are still unclear. Accordingly, we investigated the stochastic fracture of 241 FDMed short-carbon-fiber-reinforced-ABS with porosity ranging from 13 to 53 vol.% under tensile load. Weibull analysis was performed to quantify the variations in mechanical properties. We observed an increase in Weibull modulus of fracture/tensile strength for porosity higher than ~40 vol.% and a decrease in Weibull modulus of fracture strain for an increase in porosity from 25 to 53 vol.%. Micromechanics-based 2D simulations indicated that the mechanical reliability of FDMed composites depends on variations in bead strength and elastic modulus of beads. The change in raster orientation from 45°/−45° to 0° more than doubled the Weibull modulus. We identified five different types of pores via high-resolution X-ray computed tomography. A 22% and 48% decrease in carbon fiber length due to extrusion was revealed for two different regions of the filament.
The Cell Activation Phenomena in the Cold Atmospheric Plasma Cancer Treatment
Authors: Yan Dayun , Xu Wenjun , Yao Xiaoliang , Lin Li , Sherman Jonathan H. , Keidar Michael
Published: October 2018

Cold Atmospheric Plasma (CAP) is an ionized gas with a near room temperature. CAP is a controllable source for reactive species, neutral particles, electromagnetic field and UV radiation. CAP showed the promising application in cancer treatment through the demonstration in vitro and in vivo. In this study, we first demonstrate the existence of an activation state on the CAP-treated cancer cells, which drastically decreases the threshold of cell vulnerability to the cytotoxicity of the CAP-originated reactive species such as H2O2 and NO2−. The cytotoxicity of CAP treatment is still dependent on the CAP-originated reactive species. The activation state of cancer cells will not cause noticeable cytotoxicity. This activation is an instantaneous process, started even just 2 s after the CAP treatment begins. The noticeable activation on the cancer cells starts 10–20 s during the CAP treatment. In contrast, the de-sensitization of activation takes 5 hours after the CAP treatment. The CAP-based cell activation explains the mechanism by which direct CAP treatment causes a much stronger cytotoxicity over the cancer cells compared with an indirect CAP treatment do, which is a key to understand what the effect of CAP on cancer cells.
Prevalence and risk factors of brucellosis among febrile patients attending a community hospital in south western Uganda
Authors: Migisha Richard , Dan Nyehangane  , Boum Yap , Page Anne-Laure , Zúñiga-Ripa Amaia , Conde-Álvarez Raquel , Bagenda Fred , Bonnet Maryline
Published: October 2018

Human brucellosis, a chronic disease contracted through contact with animals and consuption of unpasteurized dairy products is underreported in limited-resource countries. This cross-sectional study aimed to determine the prevalence and risk factors of brucellosis among febrile patients attending a community hospital in South western Uganda. A questionnaire that captured socio-demographic, occupational and clinical data was administered. Blood samples were tested for Brucella antibodies using Rose Bengal Plate Test (RBPT) and blood culture with standard aerobic BACTEC bottle was done. Of 235 patients enrolled, prevalence of brucellosis (RBPT or culture confirmed) was 14.9% (95% CI 10.6–20.1) with a culture confrmation in 4.3% of the participants. The factors independently associated with brucellosis were consumption of raw milk (aOR 406.15, 95% CI 47.67–3461.69); history of brucellosis in the family (aOR 9.19, 95% CI 1.98–42.54); and selling hides and skins (aOR 162.56, 95% CI 2.86–9256.31). Hepatomegaly (p < 0.001), splenomegaly (p = 0.018) and low body mass index (p = 0.032) were more common in patients with brucellosis compared to others. Our findings reveal a high prevalence of brucellosis among febrile patients and highlight a need for implementing appropiate tests, public awareness activities and vaccination of animals to control and eliminate the disease.
Graphene oxide/lysine composite – a potent electron mediator for detection of diazepam
Authors: Prakash Varnika , Sharma Shweta , Kaur Jashanjot , Mehta S. K.
Published: October 2018

A graphene oxide/lysine (GO/lys) composite, synthesized using a very simple chemical method, has been used to modify a glassy carbon electrode for the voltammetric detection of diazepam.
DNA-mediated self-assembly of taste cells and neurons for taste signal transmission
Authors: Yun Junsu , Cho Ann-Na , Cho Seung-Woo , Nam Yoon Sung
Published: October 2018

Cells can communicate with one another through physical connections and chemical signaling, activating various signaling pathways that can affect cellular functions and behaviors.
Deepening the shear structure FeNb11O29: influence of polymorphism and doping on structural, spectroscopic and magnetic properties
Authors: Spada Daniele , Mozzati Maria Cristina , Albini Benedetta , Galinetto Pietro , Quinzeni Irene , Capsoni Doretta , Bini Marcella
Published: October 2018

FeNb11O29, an intriguing and promising material is emerging in the last few years due to its peculiar structural features.
A cyanide-bridged di-manganese carbonyl complex that photochemically reduces CO2 to CO
Authors: Kuo Hsin-Ya , Lee Tia S. , Chu An T. , Tignor Steven E. , Scholes Gregory D. , Bocarsly Andrew B.
Published: October 2018

A cyanide-bridged di-manganese complex, {[Mn(bpy)(CO)3]2(μ-CN)}+, is introduced as an efficient electrocatalyst and photochemically active for proton-assisted of CO2 reduction to CO.
Highly soluble Cu(i)-acetonitrile salts as building blocks for novel phosphorus-rich organometallic-inorganic compounds
Authors: Elsayed Moussa Mehdi , Piesch Martin , Fleischmann Martin , Schreiner Andrea , Seidl Michael , Scheer Manfred
Published: October 2018

The synthesis of the highly soluble salts [Cu(CH3CN)3.5][FAl{OC(C6F10)(C6F5)}3] and [Cu(CH3CN)4][Al{OC(CF3)3}4] is presented. These compounds react with polyphosphorus ligand complexes to form pristine phosphorus-rich Cu(i) dimers.
Chemical vapor deposition growth of carbon nanotube confined nickel sulfides from porous electrospun carbon nanofibers and their superior lithium storage properties
Authors: Wang An , Xie Sanmu , Zhang Rong , She Yiyi , Chen Chuan , Leung Micheal K. H. , Niu Chunming , Wang Hongkang
Published: October 2018

Carbon-nanotube confined nickel sulfides grown on porous carbon nanofibers were prepared via an electrospinning-CVD method and showed superior lithium storage performance.
The structural shift of a DNA template between a hairpin and a dimer tunes the emission color of DNA-templated AgNCs
Authors: Shah Pratik , Choi Suk Won , Nagda Riddhi , Geczy Reka , Cho Seok Keun , Bhang Yong Joo , Kim Tae-Hwan , Song Tae Yang , Lee Phil Hyu , Kang Ju-Hee , Thulstrup Peter Waaben , Bjerrum Morten Jannik , Jung Il Lae , Yang Seong Wook
Published: October 2018

The structural shift of a DNA hairpin-dimer is as important as the DNA sequence in determining the fluorescent properties of DNA-stabilized silver nanoclusters (DNA/AgNCs).
Phonons and thermal conducting properties of borocarbonitride (BCN) nanosheets
Authors: Chakraborty Himanshu , Mogurampelly Santosh , Yadav Vivek K. , Waghmare Umesh V. , Klein Michael L.
Published: October 2018

Hexagonal borocarbonitrides (BCN) are a class of 2D materials, which display excellent catalytic activity for water splitting.
Catalyst-free 1 : 2 annulation of quinolines with trifluoroacetylacetylenes: an access to functionalized oxazinoquinolines
Authors: Belyaeva K. V. , Nikitina L. P. , Afonin A. V. , Vashchenko A. V. , Muzalevskiy V. M. , Nenajdenko V. G. , Trofimov B. A.
Published: October 2018

Catalyst-free reaction of quinolines with two molecules of aryltrifluoroacetylacetylenes afforded 3-arylethynyl-3-trifluoromethyl-1,3-oxazinoquinolines in up to 92% yields.
Degradation of the antibiotic ornidazole in aqueous solution by using nanoscale zero-valent iron particles: kinetics, mechanism, and degradation pathway
Authors: Zhang Yanchang , Zhao Lin , Yang Yongkui , Sun Peizhe
Published: October 2018

The whole possible process of ONZ removal by nZVI. The reduction on the surface of nZVI was the main mechanism. A potential pathway including dechlorination, nitro reduction, N-denitration, and cleavage was proposed for the degradation process.
Exchanging the order of carotenogenic genes linked by porcine teschovirus-1 2A peptide enable to optimize carotenoid metabolic pathway in Saccharomyces cerevisiae
Authors: Jiao Xiang , Sun Wenyi , Zhang Yue , Liu Xiangjian , Zhang Qi , Wang Qian , Zhang Sufang , Zhao Zongbao Kent
Published: October 2018

The yeast Saccharomyces cerevisiae serves as a promising host for the production of a wide range of chemical compounds and fuels.
High-sensitivity refractive index of Au@Cu2−xS core–shell nanorods
Authors: Cao Pengfei , Chen Huizhen , Zhang Hailong , Cheng Lin , Niu Tiaoming
Published: October 2018

A high refractive index sensitivity of Au@Cu2−xS core–shell nanorods working in the near-infrared is theoretically demonstrated.
Influence of the electrode nano/microstructure on the electrochemical properties of graphite in aluminum batteries
Authors: Greco Giorgia , Tatchev Dragomir , Hoell Armin , Krumrey Michael , Raoux Simone , Hahn Robert , Elia Giuseppe Antonio
Published: October 2018

Nano-microstructural evolution of PG electrodes in Al-batteries has been investigated by XRD, SAXS and CT evidencing the effect of porosity variation on the cycling behavior.
Cooperative demand‐side management scenario for the low‐voltage network in liberalised electricity markets
Authors: Hupez Martin , De Grève Zacharie , Vallée Francois
Published: October 2018

This work presents a cooperative demand‐side management (DSM) scenario in a low‐voltage network considering a context of liberalised electricity markets. The authors show that introducing an additional inter‐supplier cooperation mechanism among consumers enhances a better use of the flexibility consented by each individual, hence aiming at reaching a global optimum instead of optimising the costs of a few ones. To that end, a real‐time pricing (RTP) scheme is explored based on cost functions differentiated in both time and consumption level that should reflect the true energy cost. The authors apply to each consumer a commodity cost function shared among the set of cooperative users of its respective supplier as well as one common network cost function shared by all cooperative users of all suppliers in the considered network. Each individual runs, through its smart meter (SM), a decentralised optimisation algorithm defining an energy consumption schedule for a set of flexible appliances (FAs). The mechanism the authors propose ensures that a fair cost distribution between all users is achieved by reaching the Nash equilibrium. To assess their proposition, they confront it to intermediate consumption strategies through a benchmark. The results confirm that their inter‐supplier cooperation mechanism always leads to the minimum total cost.
Recent results on weakly factorial domains
Authors: Gyu Whan Chang
Published: October 2018

In this paper, we will survey recent results on weakly factorial domains base on the results of [11, 13, 14]. LetD be an integral domain, X be an indeterminate over D, d ∈ D, R = D[X,d/X] be a subring of the Laurent polynomial ring D[X,1/X], Γ be a nonzero torsionless commutative cancellative monoid with quotient group G, and D[Γ] be the semigroup ring of Γ over D. Among other things, we show that R is a weakly factorial domain if and only if D is a weakly factorial GCD‐domain and d = 0, d is a unit of D or d is a prime element of D. We also show that if char(D) = 0 (resp., char(D) = p > 0), then D[Γ] is a weakly factorial domain if and only if D is a weakly factorial GCD domain, Γ is a weakly factorial GCD semigroup, and G is of type (0,0,0,…) (resp., (0,0,0,…) except p).
Differential Resultants
Authors: McCallum Scott , Winkler Franz
Published: October 2018

We review classical concepts of resultants of algebraic polynomials, and we adapt some of these concepts to objects in diﬀerential algebra, such as linear diﬀerential operators and diﬀerential polynomials.
Positive solutions for a one-dimensional Sturm-Liouville semipositone superlinearp-Laplacian problem
Authors: Chu K. D. , Hai D. D.
Published: October 2018

We prove the existence of a positive classical solution for the p-Laplacian equation–(r(t)ϕ(u'))'= –λh(u) + f (t, u), t ∈ (0, 1)with Sturm-Liouville boundary conditions, whereϕ(s)= |s|p‒2s;p> 1;r: [0, 1] → (0, ∞); f : (0, 1) × [0;∞) →ℝis a Carathéodory function satisfying a superlinear condition at 0 and 1 involving the principal eigenvalue of –(r(t)ϕ(u'))'h: (0,∞) → (0,∞) is allowed to have infinite semipositone structure at 0, andλ≥ 0 is a small parameter.
On inverse problem for a class of fourth order strongly damped wave equations
Authors: Danh Hua Quoc Nam , Nguyen Huu Can , Vo Van Au , Tran Thanh Binh
Published: October 2018

In this paper, we study the initial inverse problem for a class of fourth order strongly damped linear wave equations. In the beginning, we show that the problem is ill-posed in the sense of Hadamard. Next, we propose the method called: the Fourier truncation method for stabilizing the problem. Convergence estimates are established under a priori regularity assumptions on the problem data.
A truncation regularization method for a time fractional diffusion equation with an in-homogeneous source
Authors: Vu Cam Hoan Luu , Duy Binh Ho , Bao Ngoc Tran
Published: October 2018

In the present paper, we consider a time-fractional inverse diffusion problem with an in-homogeneous source, where data is given at x = 1 and the solution is required in the interval 0 < x < 1. This problem is ill-posed, i.e. the solution (if it exists) does not depend continuously on the data. We propose a regularization method to solve it based on the solution given by the Fourier method.
Application of Contractive-like Mapping Principles to Fuzzy Functional Differential Equation
Authors: Ho Vu
Published: October 2018

In this paper, we prove the existence and uniqueness of solution for the fuzzy functional differential equation under generalized Hukuhara derivative via contractive-like mapping principles.
Gradient bounds for solutions of nonlinear strictly elliptic equations, applications and extensions
Authors: Duc Nguyen Vinh
Published: October 2018

In this short manuscript, we briefly recall some well-known methods for obtaining gradient bounds of viscosity solutions for elliptic and parabolic equations. The two methods we focus here are the idea coming from Ishii- Lions’ method applies for strictly elliptic equations and the other one is socalled weak Bernstein’s method developed by Barles applies for degenerate equations. We present some results based on these methods and their applications. We also discuss some promising extensions in the future.
Unknown parameter identification of mobile heating source by using the sensitivity of sensor network
Authors: Tran Thanh-Phong
Published: October 2018

This communication focuses on an inverse problem of the physical phenomena which can be described by the partial differential equation. Especially, an unknown parameter identification process of the heat conduction problem in the thermal domain related to mobile heating source tracking is investigated. To do this, an iterative minimization of a quadratic cost-function based on the conjugate gradient method is widespread since this algorithm provides regularization properties for an estimation of the trajectory of a mobile heating source. Furthermore, another identification method is proposed by using the conjugate gradient method combined with the sensitivity problem of the sensor network. A quasi-online adaptation of this numerical method aims to identify the unknown characteristics with a small delay after the required temperature measurements by selecting the better sensors locations, this could also reduce the computational time. This approach offers the opportunity to move mobile sensors in order to increase the overall sensitivity and thus to improve the quality of the identification which is a shorter delay and better accuracy.
Synchronization of distributed robotics control system
Authors: Twarog Boguslaw , Zeslawska Ewa
Published: October 2018

The paper presents the novel project that has been proposed and realized together with the implementation of the process of heating thermosetting components based on advanced industrial equipment and software tools. In the fundamental task of optimization, the phenomenon of process synchronization based on a centralized algorithm adapted to the specific requirements of production was taken into account. The proposed research station was optimized and located in the laboratory of the Interdisciplinary Computer Modelling of the University of Rzeszow, that specializes in raising the efficiency of industrial processes
A research on the impact of encryption algorithms on the quality of VPN tunnels’ transmission
Authors: Strzęciwilk Dariusz , Ptaszek Krzysztof , Hoser Paweł , Antoniku Izabella
Published: October 2018

The following article presents the results on the impact of encryption algorithms and the cryptographic hash function on the QoS (Quality of Service) transmission in a computer network. A network model supporting data encryption using the AES algorithm and the MD5 and SHA hash functions used in VPN tunnels was designed and tested. The influence of different data length on the quality of transmission in a secured network was studied. The measurements and tests of networks were performed according to two methodologies ITU-T Y.1564 and RFC 2544. The impact of the data encryption mechanism on bandwidth, data loss and maximum delays was examined. The secured network tests were performed with different combinations of encryption algorithms and hash functions of the VPN tunnel in the ESP (Encapsulating Security Payload) transport mode.
The influence of power electronic converter passive filter parameters for flicker in LED lighting
Authors: Sobczynski Dariusz
Published: October 2018

The light emitting diodes (LEDs) are ever more used, and their price is getting lower year on year. Although, exchanging traditional light sources for the LED lamps does not seem to be complicated, we need to remember to maintaining high–quality of light. One of the aspects we should be worry about is a light’s flickering. Due to the shape of the current–voltage characteristics of the LED diode and their dependence on temperature, the value of the luminous flux – but also the lifetime – depends to a large extent on the stability of the supply voltage. Therefore, correct power system should be a thermally stable current source. Unfortunately, the simple power systems, equipped with passive filters are often used as cheap commercial solutions. In those types of systems stability of the output voltage is heavily dependent on the load conditions. Passive filters – usually consisting of coils and capacitors – are placed in the output circuit. This paper presents research carried out to show of filter capacitance influence on flickering phenomenon, and practical light’s flickering measuring technique for the LED lamps.
The impact of mutual position of joints that generate a bipolar field on the decay of the components of the electromagnetic field’s vector
Authors: Kwiatkowski Bogdan , Bartman Jacek , Krutys Paweł
Published: October 2018

In the article the influence of mutual position of the upper joint in relation to the lower one on the decay of the electromagnetic field was presented. Moreover, the indirect measurement method was depicted, by means of which the measurements were taken on the surface of the contact circuit. This method enables the simultaneous measurement of all the components of the vector of the electromagnetic field.
Numerical modeling of seismic waves by discontinuous spectral element methods
Authors: Antonietti Paola F. , Ferroni Alberto , Mazzieri Ilario , Paolucci Roberto , Quarteroni Alfio , Smerzini Chiara , Stupazzini Marco
Published: October 2018

We present a comprehensive review of Discontinuous Galerkin Spectral Element (DGSE) methods on hybrid hexahedral/tetrahedral grids for the numerical modeling of the ground motion induced by large earthquakes. DGSE methods combine the exibility of discontinuous Galerkin meth-ods to patch together, through a domain decomposition paradigm, Spectral Element blocks where high-order polynomials are used for the space discretization. This approach allows local adaptivity on discretization parameters, thus improving the quality of the solution without affecting the compu-tational costs. The theoretical properties of the semidiscrete formulation are also revised, including well-posedness, stability and error estimates. A discussion on the dissipation, dispersion and stability properties of the fully-discrete (in space and time) formulation is also presented. Here space dis-cretization is obtained based on employing the leap-frog time marching scheme. The capabilities of the present approach are demonstrated through a set of computations of realistic earthquake scenar-ios obtained using the code SPEED (http://speed.mox.polimi.it), an open-source code specifically designed for the numerical modeling of large-scale seismic events jointly developed at Politecnico di Milano by The Laboratory for Modeling and Scientific Computing MOX and by the Department of Civil and Environmental Engineering.
‘Official Tears’: Signs of Sociocultural Type ‘Official’ According to the National Corpus of the Russian Language
Authors: Anokhina Svetlana , Osipova Alexandra , Pozdnyakova Natalia
Published: October 2018

The article is devoted to the consideration of one of the facets of the sociocultural type ‘official’, which is significant for the linguistic consciousness of native Russian speakers and corresponds to the character traits of a typical Russian official. Based on the analysis of compatibility of the adjective ‘official’ in the XIX-XXI century texts, included in the National Corpus of the Russian Language, the authors represent the prevailing perception of the Russian official rooted in the Russian linguistic consciousness, trace its transformations, as well as identify those components that have remained unchanged for the two centuries. In general, the results of analyzing the Russian adjective ‘official’ represent a very unsavoury image of a state official. The texts included in the NCRL allowed revealing essential character traits of the Russian official: indifference, ignorance, cowardice, arrogance, insincerity. These traits characterize the sociocultural type ‘official’, that is a generalized image formed in the linguistic consciousness of native Russian speakers for two centuries.
Interethnic Tolerance of Population of Small Towns of Russia
Authors: Fomina Olga , Volchenkova Tamara
Published: October 2018

The article gives the results of the sociological research on the problems of tolerance and migration in the central region of Russia. The mechanism of sociological interviewing of the population of small towns of Vladimir region with the help of students-volunteers is described. The existence of the problem in the field of cross-cultural relations between the representatives of the native population of Vladimir region and the representatives of national diasporas of small towns is confirmed. The practical significance of the research done is represented by the data, which served as a basis for recommendations to the bodies of self-government, social, educational institutions and mass media of Vladimir region on the formation of modern norms of ethics, law and tolerance in the community.
Social Skills Amongst MMORPG-Gamers: Empirical Study
Authors: Sergeyeva Olga , Tsareva Anna , Zinoveva Nadezhda , Kononova Olga
Published: October 2018

The research paper addresses the issue of the impact of MMORPGs on social culture and communication skills of individuals. The mainstream discourse about computer games which take individuals away from reality and substitute the real life by the fictional one is complemented by brand new ideas, which affirm that computer games do not substitute but supplement the real life and expand its possibilities. To confirm the presented point of view we use diagnostic questionnaire of interpersonal relations by A.A. Rukavishnikov. This questionnaire is aimed to evaluate typical ways of respondent’s attitude towards other people. At this point we have 43 gamers and 29 non-gamers involved in our research, aged 18 to 57. The comparison of a user and non-user answers gives a bigger view on an overall gaming experience. In the obtained indices we note that there are no fundamental differences between MMORPGs gamers and ordinary people. During research, MMORPGs users have showed many important social interaction skills such as striving to control own actions, collaborate with others, though with a low interest in emotionally charged relationships. Authors discuss the idea about the differences between addiction and fascination among gamers.
Customer-Centric Organizational Culture of the University as a Factor of Efficient Social and Economic Development of the Region
Authors: Shavyrina Irina , Demenenko Inna , Kravchenko Elena
Published: October 2018

The paper considers the customer-centric approach to the organizational culture of the university. The study of formation and development of customer-centric organizational culture of higher educational institutions as a factor of efficient social and economic development of the region is based on the designed diagnostic model of customer-centric organizational culture of the university encompassing the following group of components: degree of formation of customer-centric organizational culture at the university at various levels (ideological, regulatory, customer-facing); degree of students’ satisfaction; degree of students’ involvement in the organizational culture of the university and outcomes of the influence of the university organizational culture on them. The customer-centric approach is considered, first as the focus of each member (employee) on the consumer (assessment of the orientation level of each participant), second, assessment of the consumer satisfaction level, allows estimating the level of consumer-focus in general without an attempt to identify orientation of every individual participant. The process of creating the additional value covers all above-mentioned levels and cannot be created with only one without taking the other into account. Therefore, it is critical to collect and make the best use of information and both real and potential consumer services.
“Wir Schaffen Das!” (Angela Merkel as a Linguistic Persona)
Authors: Mikhina Olga , Mikhin Artem , Shulezhkova Svetlana
Published: October 2018

The problem posed by the authors of this paper is to reveal peculiarities of linguistic persona of one of the most authoritative state and political actors of our time: Angela Merkel, the Chancellor of the Federal Republic of Germany. Material for the research comes from various election debates, speeches at international forums and in Bundestag, addresses to voters, interviews of “the engine of the EU” with journalists of various media outlets. An anthropocentric approach that has become the main principle of modern linguistics, enriched with procedures having being developed within cultural, political and social linguistics, application of methods used in study of linguistic persona in the context of gender and values presented in the media and political discourse, allowed to attain certain results. Lexical and idiomatic markers in Angela Merkel’s speeches, her formulation of basic principles of domestic and foreign policy, linguistic response to crisis events and provocative questions give a possibility to model the main parameters of her linguistic persona. She is a strong leader with muffled gender attributes, which usually appear in selection of linguistic means that always conform to the literary language. Physical chemist by education, Merkel speaks logically and strictly to the point in the media and political discourse as well. Having being ushered into the elite of male rulers, A. Merkel realizes male rigidity when formulating her opinion. As a leader of nation, she presents herself as a representative of the whole German society, a society allotted with a high mission to guard common European values. The main concepts, verbalized in her speeches and utterances are We (, the people of Germany), Peace, Freedom, Democracy, Tolerance.
Students’ Common Mistakes in Technical Texts When Using Computer Technologies
Authors: Klepikova Tatiana
Published: October 2018

The paper considers the possibilities of using computer technologies by students in the translation of scientific and technical texts on power and electrical engineering. The main task of the study was to identify advantages and disadvantages of machine or computer-aided translation through their comparison and to define the possibility of their use in the translation of texts on power and electrical engineering. Among other types, students and post-graduates prefer machine translation. The comparison of two the most popular machine translation systems on the basis of Google Translate statistics and PROMT rules texts on power and electrical engineering showed that the Google Translate gives the better quality translation of special terms of this subject-matter. The majority of participants of the students’ international competition on written translation of the CIGRE Russian National Committee use Google Translate and PROMT. Translation mistakes are the result of insufficient language training and indistinct understanding of the described technical process. When translating written texts students shall apply post-editing and use the electronic dictionary Multitran. The development of hybrid machine translation systems on the basis of rules and statistics will allow shifting to a qualitatively new level of technical translation. The quality of students’ translations significantly increases if they participate in international and domestic competitions and get a profound knowledge of specialized subjects.
Category Features of Toast as Small Speech Genre
Authors: Loktionova Nadezhda M. , Kruglova Svetlana A. , Drozdova Olesya A. , Zhyvotkova Irina A. , Potanina Olga Y.
Published: October 2018

Toasts logically fit into modern cultural space, including folklore. Folklore as a field of artistic creativity is widely spread in a variety of forms and types in modern reality. This phenomenon is dynamic, evolving, and quickly transformable; within humanitarian knowledge it interacts with such concise concepts as post-folklore, subculture; it reflects quality changes of public and everyday life of our era. Conceptually, the subject field of urban folklore is fairly well understood and even developed despite its specifics and complexity.
Levels of Communication Act: Functional Communicative Features of Social Work Institutional Discourse
Authors: Bredikhin Sergey , Bredikhina Yuliya , Serebriakova Svetlana , Marchenko Tatiana
Published: October 2018

The article studies basic functional communicative features of social work discourse. Assuming the actualization of triple communication bonds “a social worker – a client – a social service” in social work interaction, the authors study the key levels of communicative actions, which verbalize both institutional and personal elements in this communication domain. The approach provides an opportunity to specify social work discourse as a contaminated phenomenon combining the features of a social-ritual kind within the institutional type of discourse and an existential kind within personality-oriented type of discourse. The linguistic means of actualizing conventional components of this type of discourse are determined.
Religion as Factor in Formation of Law: Current trends
Authors: Akhverdiev Erwin , Ponomarev Alexander
Published: October 2018

This article consists of the following parts: introduction, methodology, research results, analysis, and discussion. The article is devoted to religious law formation research from a historical and modern prospective. The authors consider the most prevalent religions in present-day society such as Hinduism, Christianity, Islam, and Buddhism and the way in which these religions influence legislation of India, Russia, Thailand, the United Kingdom and Muslim states. Furthermore, the author researches relationship between religion, law, and morality to reveal theoretical and practical links between religion and law. The explanation of the criteria for the legal provisions morality of is an obvious fact. In this regard, analysis of religious values and morality mutual influence is a necessary step of scientific research. This point provided a basis for studying the basic tenets of Christianity, Islam, Hinduism, and Buddhism in terms of their ability to determine law. In conclusion, the authors note that the search for the rule we are looking for is not absolute, and many lawyers denied the very possibility of its existence. However, the authors come to the conclusion that complete denial of religious determinism of law restricts the range of possible tools for studying law formation.