bluuebunny/crossref_metadata_2025_split huggingface dataset:
Induced seismicity: a geo-ecological problem of a technogenic nature
Authors: Tashlykova Tatiana G. , Ryashchenko Tamara G. , Dolgaya Anna A. , Lukyanova Elena A. 
Published: September 2016

Abstract
A debatable problem of the display of induced seismicity and its causes during the construction of reservoirs (Reservoir Induced Seismicity - RIS) is considered on the basis of an analysis of various publications. This paper describes the history of the evolution of ideas about the possibility of the activation of seismic events in the zones of influence of artificial reservoirs and examples of such activation in aseismic areas, which is a medium geological response to technogenic interference (e.g. Shivajisagar reservoir in West India, Mead reservoir in the USA, Danjiangkou Reservoir in central China, Nurek reservoir in Central Asia, Chirkey reservoir in Dagestan and other). The problem and reasons of induced seismicity (RIS) are debatable. however, published examples demonstrate the existence of this process. For reservoirs with different amounts of water RIS is an inseparable component of the natural and man-made geological process. The world statistics knows cases of seismicity intensification in areas near small man-made reservoirs with low pressure levels (Belecha in former Yugoslavia, Marathon in Greece, Grandval in France). In addition, it was found that the number of local earthquakes increased after creating a cascade of three small water reservoirs (Studen Kladenets, Kardzhali and Ivaylovgrad) in the basin of The Arda river (Bulgaria). The RIS examples listed above allow us to think that it is not only the creation of large reservoirs that change (in some cases, intensifies) the local seismicity in the surrounding area. No reservoir, no matter what size it is, is insured from such geological process. At the present time there are more than 100 places in the world with displays of induced seismicity due to reservoir construction. In India there are up to eight reservoirs with these problems. Induced seismicity associated with the influence of man-made water reservoirs, causes a specific geo-ecological risks to the surrounding areas.
Green synthesis of a carbon-rich layer on the surface of SiC at room temperature by anodic etching in dilute hydrofluoric acid/ethylene glycol solution
Authors: Cao Tuan Anh , Luong Truc Quynh Ngan , Dao Tran Cao 
Published: September 2016

Abstract
Carbide-derived carbons (CDCs) are a growing class of nanostructured carbon materials with properties that are desirable for many applications, ranging from electrical energy to gas storage. However, the synthesis of CDCs often requires high temperatures and/or pressures, as well as toxic chemicals. In this report, we demonstrate environmentally friendly synthesis of a carbon-rich layer on the surface of SiC by anodic etching at room temperature in a highly diluted solution of hydrofluoric acid in ethylene glycol. In our opinion, the carbon-rich layer was formed thanks to the fact that we have used the etching conditions in which the rate of removal of carbon from SiC has become significantly lower compared with the silicon removal rate. More specifically, we have created an environment for SiC anodic etching where there is little water. In such conditions, silicon is still being removed from SiC, thanks to the direct dissolution, whereas the carbon removal rate is significantly reduced, due to the fact that carbon can be lost only by oxidation, but there is not enough water to oxidize carbon as in solutions with plenty of water. Thus, a carbon-rich layer is created on the etched SiC surface.
Structural characterization of copper complexes with chiral 1,2,4-triazine-oxazoline ligands
Authors: Wolińska Ewa , Karczmarzyk Zbigniew , Wysocki Waldemar 
Published: September 2016

Abstract
The crystal structure determination of oxazoline-1,2,4-triazine ligand 1f and pyridine-oxazoline ligand 2g was used to analyze their conformational preferences when forming complexes with metals. Proton nuclear magnetic resonance (1H NMR), electrospray ionization mass spectrometry and UV-vis spectroscopy as well as theoretical calculation using molecular mechanics (MM) were adopted to study the composition and geometry of oxazoline-1,2,4-triazine ligands 1 complexes with copper(II) acetate monohydrate. The study revealed that during the complexation, (i) Cu(II) ion is reduced to Cu(I) upon the ligand-to-metal charge transfer transition and (ii) the ligands form with copper(I) 2:1 (L:Cu) complexes of tetrahedral geometry. On the basis of the findings, the catalytic cycle and the active transition state for the enantioselective nitroaldol reaction (the Henry reaction) catalyzed by 1–Cu are proposed.
Gender, Museums and Science: Wanda Hanke’s Ethnological Collections (1933–1958)
Authors: Sombrio Mariana M. O. 
Published: September 2016

Abstract
This paper will explore the significance of the expeditions under- taken by Wanda Hanke (1893-1958) in South America, of the networks she established in the region, as well as of her contributions to ethnological studies, in particular her compilation of extensive data and collections. Through Hanke's experience, it is possible to elucidate aspects of the history of ethnology and that of the history of museums in Brazil, as well as to emphasize the status of female participation in these areas. Wanda Hanke spent 25 years of her life studying the indigenous groups of Argentina, Bolivia, Brazil and Paraguay and collecting ethnological objects for natural history museums. Trained in medicine and philosophy, she began to dedicate herself to ethnological studies in her forties, and she travelled alone, an uncommon characteristic among female scientists in the 1940s, in Brazil.
Directional measures of postural sway as predictors of balance instability and accidental falls
Authors: Janusz Błaszczyk W. , Beck Monika , Szczepańska Justyna , Sadowska Dorota , Bacik Bogdan , Juras Grzegorz , Słomka Kajetan J. 
Published: September 2016

AbstractDespite the obvious advantages and popularity of static posturography, universal standards for posturographic tests have not been developed thus far. Most of the center-of-foot pressure (COP) indices are strongly dependent on an individual experimental design, and are susceptible to distortions, which makes results of their analysis incomparable. In this research, we present a novel approach to the analysis of the COP trajectory based on the directional features of postural sway. Our novel output measures: the sway directional indices (DI) and sway vector (SV) were applied to assess the postural stability in the group of young able-bodied subjects. Towards this aim, the COP trajectories were recorded in 100 students standing still for 60 s, with eyes open (EO) and then, with eyes closed (EC). Each record was subdivided then into 20, 30 and 60 s samples. Interclass correlation coefficients were calculated from the samples. The controlled variables (visual conditions) uniquely affected the output measures, but only in case of proper signal pretreatment (low-pass filtering). In filtering below 6 Hz, the DI and SV provided a unique set of descriptors for postural control. Both sway measures were highly independent of the trial length and the sampling frequency, and were unaffected by the sampling noise. Directional indices of COP filtered at 6 Hz showed high to very high reliability, with ICC range of 0.7-0.9. Results of a single 60 s trial are sufficient to reach acceptable reliability for both DI and SV. In conclusion, the directional sway measures may be recommended as the primary standard in static posturography.
Optimizing post activation potentiation for explosive activities in competitive sports
Authors: Gołaś Artur , Maszczyk Adam , Zajac Adam , Mikołajec Kazimierz , Stastny Petr 
Published: September 2016

Abstract
Post activation potentiation (PAP) has shown improved performance during movements requiring large muscular power output following contractions under near maximal load conditions. PAP can be described as an acute enhancement of performance or an enhancement of factors determining an explosive sports activity following a preload stimulus. In practice, PAP has been achieved by complex training, which involves a combination of a heavy loaded exercise followed by a biomechanically similar explosive activity, best if specific for a particular sport discipline. The main objective of this study was to investigate the effects of PAP on performance in explosive motor activities specific for basketball, luge and athletics throws. The novel approach to the experiments included individualized recovery time (IRT) between the conditioning exercise and the explosive activity. Additionally, the research groups were homogenous and included only competitive athletes of similar age and training experience. Thirty one well trained athletes from 3 different sport disciplines participated in the study. All athletes performed a heavy loaded conditioning activity (80-130%1RM) followed by a biomechanically similar explosive exercise, during which power (W) or the rate of power development (W/s/kg) was evaluated. The results of our experiment confirmed the effectiveness of PAP with well-trained athlets during explosive motor activities such as jumping, throwing and pushing. Additionally, our research showed that eccentric supramaximal intensities (130% 1RM) can be effective in eliciting PAP in strength trained athletes. Our experiments also showed that the IRT should be individualized because athletes differ in the strength level, training experience and muscle fiber structure. In the three experiments conducted with basketball players, track and field athletes and luge athletes, the optimal IRT equaled 6 min. This justifies the need to individualize the volume and intensity of the CA, and especially the IRT, between the CA and the explosive activity.
The muscle-mechanical compromise framework: Implications for the scaling of gait and posture
Authors: Usherwood James Richard (Jim) 
Published: September 2016

AbstractMany aspects of animal and human gait and posture cannot be predicted from purely mechanical work minimization or entirely based on optimizing muscle efficiency. Here, the Muscle-Mechanical Compromise Framework is introduced as a conceptual paradigm for considering the interactions and compromises between these two objectives. Current assumptions in implementing the Framework are presented. Implications of the compromise are discussed and related to the scaling of running mechanics and animal posture.
The effects of specific drills on the flip turns of freestyle swimmers based on a kinesiology analysis
Authors: Wen Yuhong , Peng Yi , Zhao Feng , Zhen Kexin 
Published: September 2016

Abstract
This research aimed to define the key factors in freestyle flip turns via a kinesiology analysis to diagnose swimmers. Hence, specially designed drills were created to improve swimmers’ flip-turn skills and assess the effects of training. Nine Chinese national modern pentathlon athletes ranging in age from 20 to 26 years with an average of 10 years of training experience were tested and trained in this study. The Kistler Performance Analysis System for Swimming was used for the pre- and post-test analyses. A kinesiology analysis of the data from the pre-test was used for the diagnosis and specific drills were adopted for 10 weeks, 3 times per week before the post-test. The comparison of the pre- and post-test performances was used to assess the effects of training. After 10 weeks of specific drill training for flip turns, participants’ turning skills significantly improved. Speed in approaching, somersaulting, pushing-off and gliding all increased. The angles of the knees and hips as well as the force applied improved, which contributed to swimmers’ increased speed. Since the skills needed for a flip turn are complex and not easily diagnosed via observation alone, this kinesiology analysis will make diagnosis objective and easy.
Hybrid Synchronization Between 5-th Order Hyperchaotic Chua Systems
Authors: Chantov Dragomir 
Published: September 2016

Abstract
The aim of this paper is the design of a chaotic synchronization system with a special type of synchronization, called hybrid synchronization, on the basis of Chua’s fifth-order hyperchaotic model. When two chaotic systems are in hybrid synchronization, some of the systems’ variables pairs are in identical synchronization, and the rest are anti-synchronized. Hybrid synchronization schemes have advantages regarding the degree of signal protection, when they are used to build a chaotic secure communication system. The design of the system is accomplished by means of active control, where the Second Lyapunov method is used to prove the stability of the synchronization system.
Optimal Control of the Flow of Risk on Networks
Authors: Sgurev Vassil , Drangajov Stanislav 
Published: September 2016

Abstract
A new network flow method is proposed in this work for optimal distribution of risk between the different sections (arcs) of the network. It is supposed at that that the maximum admissible risks on the arcs are known in advance. This provides a possibility these values to be considered as arc capacities and the risk itself as a network flow. Such an approach lets the maximal admissible risk to be determined on the network on the base of the well-known mincut-maxflow theorem as well as the minimal cut. Three different numerical examples are given through which the possibility of the method being proposed is confirmed in the real practices.
Study of a Computer-Based Control System with Fault-Tolerant and Fail-Safe Behavior
Authors: Hristova Mariya 
Published: September 2016

Abstract
The software and hardware of Safety Critical Systems - SCS, which control special critical technology process or operation, are subject of enhanced requirements for reliability and inadmissibility of any incorrect controlling influences (safety) after failures. This paper suggests and investigates a hybrid computerbased fail-safe/fault-tolerance FST-structure with single reservation, which has the qualities to meet these requirements. The base system 2 ∨ 2, based on which it is built, is studied in the previous edition of Information Technjlogies and Control. For derivation of probabilistic models through which to establish the efficiency of the strutucral redundancy in a fault-tolerant structure, in this paper are used the published results. Formulas are derived for the probability of failure-free operation (availability coefficient), for safe failure and for unidentified (dangerous) failure. Models are found for calculation of the enhancement of reliability and the variation of safety relative to the base system 2 ∨ 2. Subject of analysis are type software and hardware modifications of the proposed general scheme used in the practice of different companies, which manufacture and operate SCSs. It is proven that at the expense of acceptable hardware redundancy and insignificant increase of dangerous failures the probability of interruption of the operation of the FST- system and its down-time due to failure may decrease by tenths of thousands of times.
Insecticidal efficacy of silica nanoparticles against Rhyzopertha dominica F. and Tribolium confusum Jacquelin du Val
Authors: Ziaee Masumeh , Ganji Zahra 
Published: September 2016

Abstract
Bioassays were conducted to assess the effects of two silicon dioxide nanoparticles of Aerosil® and Nanosav against adults of Rhyzopertha dominica F. and Tribolium confusum Jacquelin du Val. Silica nanoparticles were applied at the rates of 50, 100, 200 and 300 mg · kg−1 on wheat and peeled barley. The mortality was counted after 1, 2, 3, and 7 days of exposure. Another experiment was carried out to evaluate the effect of food source on the survival of beetles after exposure to silica nanoparticles. Adults were exposed to silica nanoparticles at the rate of 0.2 mg · cm−2 for 1 and 2 days on filter paper inside plastic Petri dishes, respectively. After exposure, the initial mortality was counted and live individuals of both species were held for a week in empty glass vials or vials containing wheat and wheat flour, respectively. Silica nanoparticles have high toxicity on R. dominica and T. confusum adults. Rhyzopertha dominica was more susceptible than T. confusum. However, the mortality of both species increased with increasing concentrations and time exposed to each concentration. At low concentrations, Aerosil® was more effective than Nanosav. Silica nanoparticles were more effective in wheat grains than barley. Results indicated that the initial mortality was so high that the impact of food source on delay mortality was unclear in most cases. Silica nanoparticles were efficient against tested species and can be used effectively in a stored grain integrated pest management program.
Microstructural, optical and electrical properties of Cl-doped CdTe single crystals
Authors: Choi Hyojeong , Kim Han Soo , Oh Joon-Ho , Kim Dong Jin , Kim Young Soo , Chai Jong-Seo , Ha Jang Ho 
Published: September 2016

AbstractMicrostructural, optical and electrical properties of Cl-doped CdTe crystals grown by the low pressure Bridgman (LPB) method were investigated for four different doping concentrations (unintentionally doped, 4.97 × 1019 cm−3, 9.94 × 1019 cm−3 and 1.99 × 1020 cm−3) and three different locations within the ingots (namely, samples from top, middle and bottom positions in the order of the distance from the tip of the ingot). It was shown that Cl dopant suppressed the unwanted secondary (5 1 1) crystalline orientation. Also, the average size and surface coverage of Te inclusions decreased with an increase in Cl doping concentration. Spectroscopic ellipsometry measurements showed that the optical quality of the Cl-doped CdTe single crystals was enhanced. The resistivity of the CdTe sample doped with Cl at the 1.99 × 1020 cm−3 was above 1010 Ω.cm.
Crystal structure of catena-poly-[(1-cyclopropyl-6-fluoro-4-oxo-7-(piperazin-1-ium-1-yl)-1,4-dihydroquinoline-3-carboxylate-κ
2
O,O′)-(μ2-4,4′-sulfonyldibenzoato-κ
4
O,O′:O′′,O′′′)zinc(II)] hemihydrate, C31H27ZnFN3O9.5S
Authors: Fan Zhuo-Wen , Wang Liang-Liang , Cui Kuo , Meng Ying , Liu Ji-Zhi 
Published: September 2016

Abstract
C31H27ZnFN3O9.5S, triclinic, P1̅ (no. 2), a = 10.6434(4) Å, b = 12.6191(4) Å, c = 12.8532(5) Å, α = 93.998(3)°, β = 109.121(3)°, γ = 112.773(3)°, V = 1465.16(9) Å3, Z = 2, R
gt(F) = 0.0354, wR
ref(F
2) = 0.1012, T = 293 K.
Crystal structure of 2-(2-bromophenyl)-5-ethyl-1,3-dioxane-5-carboxylic acid, C13H15BrO4
Authors: Yuan Lin , Yuan Xian-You , Li Zhong-Yan , Zhang Min 
Published: September 2016

Abstract
C13H15BrO4, orthorhombic, Pbca (no. 61), a = 15.894(3) Å, b = 7.6064(16) Å, c = 21.571(4) Å, V = 2607.8(9) Å3, Z = 8, R
gt(F) = 0.0268, wR
ref(F
2) = 0.0702, T = 296(2) K.
Crystal structure of 8-isopropyl-8-aza-bicyclo[3.2.1]octan-3-ol, C10H19NO
Authors: Yang Xiao-Li , Wang Kun-Yan 
Published: September 2016

Abstract
C10H19NO, monoclinic, P21/c (no. 14), a = 6.2427(16) Å, b = 9.553(2) Å, c = 16.932(4) Å, β = 100.094(7)°, V = 994.1(4) Å3, Z = 4, R
gt(F) = 0.060, wR
ref(F
2) = 0.094, T = 296(2) K.
Crystal structure of 2,4-dibenzoyl-N,N-dimethylbenzenamine, C22H19NO2
Authors: Wang Kai , Chen Qiang , Xiao Jian 
Published: September 2016

Abstract
C22H19NO2, monoclinic, P21/c (no. 14), a = 12.7728(19) Å, b = 7.9765(12) Å, c = 20.451(3) Å, β = 123.946(7)°, V = 1728.5(5) Å3, Z = 4, R
gt(F) = 0.049, wR
ref(F
2) = 0.150, T = 296(2) K.
“The True Forme of Love”: Transforming the Petrarchan Tradition in the Poetry of Lady Mary Wroth (1587–1631)
Authors: Jajtner Tomáš 
Published: September 2016

Abstract
The following article deals with the transformation of the Petrachan idea of love in the work of Lady Mary Wroth (1587-1631), the first woman poet to write a secular sonnet sequence in English literature, Pamphilia to Amphilanthus. The author of the article discusses the literary and historical context of the work, the position of female poets in early modern England and then focuses on the main differences in Wroth’s treatment of the topic of heterosexual love: the reversal of gender roles, i.e., the woman being the “active” speaker of the sonnets; the de-objectifying of the lover and the perspective of love understood not as a possessive power struggle, but as an experience of togetherness, based on the gradual interpenetration of two equal partners.
Assimilating American Indians in James Fenimore Cooper’s Novels?
Authors: Peprník Michal 
Published: September 2016

Abstract
The article employs critical concepts from sociology and anthropology to examine the stereotype of the Vanishing Indian and disclose its contradictory character. The article argues that in James Fenimore Cooper’s late novels from the 1840s a type of American Indian appears who can be regarded as a Vanishing Indian in many respects as he displays some slight degree of assimilation but at the same time he can be found to reveal a surprising amount of resistance to the process of vanishing and marginalization. His peculiar mode of survival and his mode of living demonstrate a certain degree of acculturation, which comes close to Gerald Vizenor’s survivance and for which I propose a term critical integration. I base my study on Susquesus (alias Trackless), Cooper’s less well-known character from The Littlepage Manuscripts, a three-book family saga.
Fabrication of chitosan/PEO nanofiber mats with mica by electrospinning
Authors: Chen Qi , Xin Zhen Xiang , Saha Prosenjit , Kim Jin Kuk 
Published: September 2016

Abstract
Chitosan (CS) is an excellent biocompatible natural antibacterial material that has attracted researchers to study its biological applications as artificial tissue scaffolds and wound-healing materials. In this research, CS has been mixed with polyethylene oxide (PEO) and mica at various weight ratios to prepare nanofibers; however, it is found to be a difficult task to prepare the nanofiber using pure CS. The composite in form of nanofibrous mat was prepared with CS/PEO solution and CS/PEO/mica solution using electrospinning. Processing conditions were adjusted to a flow rate of 6 ml/min, with an applied voltage of 27 kV. The distance of capillary tip to target was kept about 10 cm at 25°C with a collector having a speed of 200 rpm. The spinnability of solutions was also evaluated by using both plate and cylinder collectors. The composite mats were analyzed in detail using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), thermogravimetric analysis, and X-ray diffractogram (XRD). SEM photomicrograms indicated that the morphology and diameter of the nanofibers were affected by weight ratio of CS/PEO, concentration of mica, and types of collector. Furthermore, mica was incorporated in the CS/PEO matrix to enhance the specific surface area. Molecular interactions between CS/PEO and mica were investigated using FTIR and XRD.