bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effects of Laser Remelting on the Microstructure and Performance of Bainitic Steel
Authors: Yu Yuelong , Zhang Min , Guan Yingchun , Wu Peng , Chong Xiaoyu , Li Yuhang , Tan Zhunli
Published: August 2019

The surface of bainitic steel was remelted by fiber laser, and the microstructure and mechanical properties of the melted layer were studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM), a nanoindentation instrument, and wear equipment. The study of changing the laser scanning speed showed that the depth of the melted layer increases with decreases of the laser scanning speed. The wear-resistance property increased by 55% compared with the matrix and decreased with the reduction of laser scanning speed within a certain range. In the study of changing the laser-scanning space, the thermal effect of laser melting in the back channel on the front channel was further validated. At the same time, it was found that the solidified layer surface of hardness alternating with softness can be obtained by appropriately expanding the scanning space, which is conducive to improving the wear-resistant properties of the steel surface, and properly improving the production efficiency of the laser remelting treatment.
Effect of Milk Type on the Microbiological, Physicochemical and Sensory Characteristics of Probiotic Fermented Milk
Authors: Dimitrellou Dimitra , Salamoura Chrysoula , Kontogianni Artemis , Katsipi Despoina , Kandylis Panagiotis , Zakynthinos George , Varzakas Theodoros
Published: August 2019

The production of fermented milk using cow milk, goat milk and a mixture of them (1:1) was evaluated. The traditional yogurt starter culture was used—Streptococcus thermophilus and Lactobacillus delbrueckii ssp. bulgaricus, along with Lactobacillus casei ATCC 393. The objective was to monitor the viability of these cultures during the storage of fermented milk at 4 °C for up to 28 days. Storage significantly affected the viability of all microorganisms and especially L. bulgaricus. All microorganisms retained viable numbers higher than 7.5 log CFU g−1, even after 4 weeks of storage, which is important to confirm the probiotic character of the product. The use of goat milk significantly affected the pH and acidity of fermented milk. More specifically, the use of goat milk led to fermented milk with lower pH values and higher acidities than fermented milk with cow milk. The sensory evaluation ascertained the overall quality of fermented milk with a mixture of cow and goat milk, which scored similar values to the commercial sample.
Anchoring Property of a Novel Hydrophilic Lipopolymer, HDAS-SHP, Post-Inserted in Preformed Liposomes
Authors: Mare Rosario , Da Huining , Fresta Massimo , Cosco Donato , Awasthi Vibhudutta
Published: August 2019

Polyethylene glycol (PEG)-phospholipids in long-circulating liposomes cause non-specific immune reactions; mainly attributable to negatively-charged phosphoryl s at the interface of PEG and phospholipid. We investigated a novel lipopolymer, by which a superhydrophilic polymer (SHP) is conjugated to a non-phospholipid N1-(2-aminoethyl)-N4-hexadecyl-2-tetradecylsuccinamide (HDAS). The modification of preformed liposomes HDAS-SHP, HDAS-PEG2000, and DSPE-PEG2000 were performed by post-insertion techniques. The efficiency of post-insertion and desorption rates, from the liposome surface, were determined. HDAS-SHP micelles showed highly positive zeta potential (+28.4 mV); zeta potentials of DSPE-PEG2000 and HDAS-PEG2000 micelles were −34.4 mV, and −3.7 mV, respectively. Critical micelle concentration predicted amphiphilicity of HDAS-SHP (CMC 2.58 µM) as close to that of DSPE-PEG2000 (CMC 2.44 µM). Both HDAS-SHP and HDAS-PEG2000 post-inserted with comparable efficiency (79%, and 73%, respectively), but noticeably lower than DSPE-PEG2000 (90%). The desorption rate of HDAS-SHP was close to that of DSPE-PEG2000 (0.53%/h, and 0.45%/h, respectively); the desorption rate for HDAS-PEG2000 was slightly more at 0.67%/h. Compared to plain liposomes, both HDAS-SHP- and DSPE-PEG2000-liposomes showed significant leakage of encapsulated Na-fluorescein isothiocyanate (FITC) upon incubation with serum. At the same time, both modified liposomes were found to suppress serum levels of the complement proteins, Bb and C4d. We infer that HDAS-SHP is a viable alternative to commonly-used PEG-phospholipid derivatives for stealth purposes.
The Metonymicity of the Greek Deictic Adverbs εδώ [Here] and εκεί [There] in Politics
Authors: Tsaroucha Efthymia
Published: August 2019

This paper discusses the uses of the Greek deictic adverbs εδώ [here] and εκεί [there] in the language of politics. The paper draws examples from political speeches which took place in the Hellenic Parliament during 2011 and discussed the financial situation of Greece during that time. It is suggested that εδώ [here] and εκεί [there] have a high degree of metonymicity since they express ‘stand for’ relations. It is argued that the deictic adverbs have a referential function since they designate a range of concepts, namely, political parties, financial, political, and social situations, the Hellenic Parliament, political ideology, decisions, etc. It is also stated that the temporal and the spatial denotations of εδώ and εκεί are subject to image schemas. In particular, the paper discusses how the Greek deictic adverbs prompt for the image schemas of containment, part for whole, and centre-periphery and suggests that these types of image schemas have a metonymic basis.
Impact of CO2 on Pyrolysis Products of Bituminous Coal and Platanus Sawdust
Authors: Luo Ying , Ben Haoxi , Wu Zhihong , Nie Kai , Han Guangting , Jiang Wei
Published: August 2019

Abundant studies have been completed about factors on the pyrolysis of coal and biomass. However, few articles laid emphasis on using CO2 as a carrier gas to explore the compositional changes of pyrolysis products in coal and biomass pyrolysis for industrial application and commercial value. The experiments on coal and biomass pyrolysis in N2 and CO2 using a horizontal tube furnace were conducted at 500 °C. The impact of introducing CO2 on the pyrolysis process of bituminous coal and Platanus sawdust was investigated. The nuclear magnetic resonance (NMR) spectra of tar and the characterizations of char including Brunner-Emmet-Teller (BET) measurements, scanning electron microscope (SEM), Fourier transform infrared (FT-IR) spectroscopy, and element analysis were studied. The findings in light of the experimental results show that introducing CO2 enhances the coal and biomass pyrolysis in a solid product by promoting the fracture of hydroxyl groups. It also promotes tar decomposition and the release of volatiles, which contribute to the occurrence of char with high porosity, pore volume, and specific surface. Furthermore, higher specific surface enhances the adsorption performance of char as active carbon. Simultaneously, CO2 promotes the increase of oxygen-containing aromatics especially the methoxy-containing aromatics, and the decrease of deoxygenated aromatic hydrocarbons in pyrolysis oils. In addition, the introduction of CO2 changes the amount of aliphatic compounds in various ways for the pyrolysis of coal and biomass. From a perspective of business, the changes in the composition of pyrolysis oil brought by CO2 may create new value for fuel utilization and industrial products.
Experimental Analysis and Model Validation on the Performance of Impregnated Activated Carbons for the Removal of Hydrogen Sulfide (H2S) from Sewage Biogas
Authors: Papurello Davide , Gandiglio Marta , Lanzini Andrea
Published: August 2019

Organic waste exploitation is crucial for waste emissions restraint in air, soil and water. This type of waste can be exploited to produce biogas, a valuable fuel exploitable for energy purposes. A circular approach for energy production is much cleaner and more sustainable than the traditional linear approach. In this work, organic waste was used for biogas production to feed a highly efficient solid oxide fuel cell power generator, which requires an ultra-purified fuel. Commercial sorbents were experimentally studied in conjunction with a dynamic adsorption model to predict the breakthrough time and organize the material change-over. In the presence of 0.1% oxygen in the gas mixture, AirDep® CKC showed a marked increase in the adsorption capacity (from 3.91 to 84.87 mg/g), overcoming SulfaTrap® R8G (49.91 mg/g). The effect of several operating parameters on adsorption capacity was evaluated: inlet H2S concentration, filter geometry and gas mixture velocity. Experimental data revealed that adsorption capacity increases with initial H2S concentration, following the typical trend of the Langmuir isotherm. Model simulations were in good agreement compared to experimental results, with an average relative error lower than 7%. A sensitivity analysis on the adsorption capacity was accomplished considering parameters from operational and empirical correlations.
Efficiency Enhancement of Chlorine Contact Tanks in Water Treatment Plants: A Full-Scale Application
Authors: Kizilaslan M. Anil , Demirel Ender , Aral Mustafa M.
Published: August 2019

The mixing and disinfection performance of a full-scale chlorine contact tank (CCT) is thoroughly investigated by means of numerical simulations for seasonal water supply variations in the water treatment plant (WTP) of Eskisehir in Turkey. Velocity measurements and tracer studies are carried out on a 1:10 scale laboratory model of the CCT to validate the numerical model. A good agreement between numerical and experimental results shows that the numerical model developed can be reliably used for the simulation of turbulent flow and solute transport in the full-scale CCT. Tracer studies indicate that the hydraulic performance of the CCT is classified as “average” according to the baffling factor, while the Morrill, Aral-Demirel (AD), and dispersion indexes indicate low mixing due to the recirculating and short-circuiting effects inside the chambers of the CCT. With respect to the first order modeling of chlorine decay and pathogen inactivation, chlorine concentrations are found to be significantly distinct for seasonal variations in water supply to maintain 3-log inactivation of Giardia cysts. A recently developed and patented slot-baffle design (SBD) is then applied to the full-scale CCT. It is found that the hydraulic efficiency of the CCT is improved to “high” and the Morrill index approaches 2, which identifies the system as a perfect mixing tank. Using the SBD, the chlorine demand has been successfully decreased by 19% while providing equivalent inactivation level. The novel SBD design also reduces energy loses in the turbulent flow through the tank and increases the energy efficiency of the CCT by 62%, which is significant for energy considerations in modern cities.
The Beguine Option: A Persistent Past and a Promising Future of Christian Monasticism
Authors: Howard Evan B.
Published: August 2019

Since Herbert Grundmann’s 1935 Religious Movements in the Middle Ages, interest in the Beguines has grown significantly. Yet we have struggled whether to call Beguines “religious” or not. My conviction is that the Beguines are one manifestation of an impulse found throughout Christian history to live a form of life that resembles Christian monasticism without founding institutions of religious life. It is this range of less institutional yet seriously committed forms of life that I am here calling the “Beguine Option.” In my essay, I will sketch this “Beguine Option” in its varied expressions through Christian history. Having presented something of the persistent past of the Beguine Option, I will then present an introduction to forms of life exhibited in many of the expressions of what some have called “new monasticism” today, highlighting the similarities between movements in the past and new monastic movements in the present. Finally, I will suggest that the Christian Church would do well to foster the development of such communities in the future as I believe these forms of life hold much promise for manifesting and advancing the kingdom of God in our midst in a postmodern world.
Implementation of Radiating Elements for Radiofrequency Front-Ends by Screen-Printing Techniques for Internet of Things Applications
Authors: Picallo Imanol , Klaina Hicham , Lopez-Iturri Peio , Sánchez Aitor , Méndez-Giménez Leire , Falcone Francisco
Published: August 2019

The advent of the Internet of Things (IoT) has led to embedding wireless transceivers into a wide range of devices, in order to implement context-aware scenarios, in which a massive amount of transceivers is foreseen. In this framework, cost-effective electronic and Radio Frequency (RF) front-end integration is desirable, in order to enable straightforward inclusion of communication capabilities within objects and devices in general. In this work, flexible antenna prototypes, based on screen-printing techniques, with conductive inks on flexible low-cost plastic substrates is proposed. Different parameters such as substrate/ink characteristics are considered, as well as variations in fabrication process or substrate angular deflection in device performance. Simulation and measurement results are presented, as well as system validation results in a real test environment in wireless sensor network communications. The results show the feasibility of using screen-printing antenna elements on flexible low-cost substrates, which can be embedded in a wide array of IoT scenarios.
Smoke Obscuration Measurements in Reduced-Scale Fire Modelling Based on Froude Number Similarity
Authors: Węgrzyński Wojciech , Antosiewicz Piotr , Burdzy Tomasz , Zimny Mateusz , Krasuski Adam
Published: August 2019

A common method for investigating various fire- and smoke-related phenoma is a reduced-scale fire modelling that uses the conservation concept of Froude number as its primary similarity criterion. Smoke obscuration measurements were not commonly used in this approach. In this paper, we propose a new type of optical densitometer that allows for smoke obscuration density measurements on a reduced-scale. This device uses a set of mirrors to increase the optical path length, so that the device may follow the geometrical scale of the model, but that still measures smoke obscuration as if it were in full scale. The principle of operation is based on the Bougher-Lambert-Beer law, with modifications related to the Froude number-based scaling principles, to streamline the measurements. The proposed low-budget (< $1000) device was built, calibrated with a set of the reference optical filters, and used in a series of full- (1:1) and reduced-scale (1:4) experiments with n-Heptane fires in a small compartment. The main limitation of this study is the assumption that there is similar soot production in full- and reduced-scale fires, which may not be true for many Froude-number scaling applications. Therefore, it must be investigated in a case-by-case basis. In our case, the results are promising. The measured obscuration in the reduced-scale had a 10% error versus averaged measurements in full-scale measurements. Moreover, there were well represented transient changes of the smoke layer optical density during the combustion and after the smoke layer settled.
Practical Inter-Floor Noise Sensing System with Localization and Classification
Authors: Son Junho , Kyung Chong-Min , Cho Hyuntae
Published: August 2019

Inter-floor noise is a severe social problem which causes illegal arson, violence, and even murder. In this paper, an inter-floor noise sensing system is proposed to detect and record information related to inter-floor noise in an apartment building. The proposed system measured the noise level and estimated the direction of the noise source along with the type of noise. The noise level measurement is based on the sound pressure level (SPL) measurement, which is a logarithmic measure of the effective pressure of a sound relative to a reference sound pressure. Noise source localization was performed using the estimated time difference of arrival (TDOA) from the microphone array. For the classification of noise types, the Mel frequency cepstral coefficients (MFCC) and zero-crossing rate (ZCR) were extracted from a noise signal, and the k-nearest neighbor algorithm was used to classify the type of noise. In addition, we developed a noise monitoring hardware to evaluate our methods in the actual environment. The experimental results demonstrated that the proposed system had a reliable accuracy for each functional unit. The results showed that the error of the noise level was approximately ±1.5 dB(A), the error of the direction estimation was approximately ±10°, and the accuracy of the classification for the noise type was more than 75%. These output data from the proposed system are expected to be used as important reference data for any dispute cases due to inter-floor noise.
Fine-Tuning and Optimization of Superconducting Quantum Magnetic Sensors by Thermal Annealing
Authors: Vettoliere Antonio , Ruggiero Berardo , Valentino Massimo , Silvestrini Paolo , Granata Carmine
Published: August 2019

In the present article, we present the experimental results concerning the fine-tuning and optimization of superconducting quantum interference device (SQUID) parameters by thermal annealing. This treatment allows for the modification of the parameters in order to meet a specific application or to adjust the device parameters to prevent the increase of magnetic field noise and work instability conditions due to a different critical current with respect to the design value. In particular, we report the sensor critical current, the voltage–flux (V–Φ) characteristics and the spectral density of the magnetic field of SQUID magnetometers for different annealing temperatures. The measurements demonstrate that it is possible to achieve a fine control of the most important device parameters. In particular, we show that thermal annealing allows for the reduction of SQUID noise by more than a factor of 5 and makes the device working operations very stable. These results are very useful in view of quantum technology applications related to superconducting quantum computing where the correct functioning of the quantum bit depends on the fine control of the superconducting quantum device parameters and selectable annealing is possible by using a suitable laser as a thermal source.
A Wide-Range, Wireless Wearable Inertial Motion Sensing System for Capturing Fast Athletic Biomechanics in Overhead Pitching
Authors: Lapinski Michael , Brum Medeiros Carolina , Moxley Scarborough Donna , Berkson Eric , Gill Thomas J. , Kepple Thomas , Paradiso Joseph A.
Published: August 2019

The standard technology used to capture motion for biomechanical analysis in sports has employed marker-based optical systems. While these systems are excellent at providing positional information, they suffer from a limited ability to accurately provide fundamental quantities such as velocity and acceleration (hence forces and torques) during high-speed motion typical of many sports. Conventional optical systems require considerable setup time, can exhibit sensitivity to extraneous light, and generally sample too slowly to accurately capture extreme bursts of athletic activity. In recent years, wireless wearable sensors have begun to penetrate devices used in sports performance assessment, offering potential solutions to these limitations. This article, after determining pressing problems in sports that such sensors could solve and surveying the state-of-the-art in wearable motion capture for sports, presents a wearable dual-range inertial and magnetic sensor platform that we developed to enable an end-to-end investigation of high-level, very wide dynamic-range biomechanical parameters. We tested our system on collegiate and elite baseball pitchers, and have derived and measured metrics to glean insight into performance-relevant motion. As this was, we believe, the first ultra-wide-range wireless multipoint and multimodal inertial and magnetic sensor array to be used on elite baseball pitchers, we trace its development, present some of our results, and discuss limitations in accuracy from factors such as soft-tissue artifacts encountered with extreme motion. In addition, we discuss new metric opportunities brought by our systems that may be relevant for the assessment of micro-trauma in baseball.
Correction: Liu, C., et al. A Novel System for Correction of Relative Angular Displacement between Airborne Platform and UAV in Target Localization. Sensors 2017, 17, 510
Authors: Liu Chenglong , Liu Jinghong , Song Yueming , Liang Huaidan
Published: August 2019

The authors wish to make the following correction to this paper [...]
Design and Performance Evaluation of a Low-Cost Autonomous Sensor Interface for a Smart IoT-Based Irrigation Monitoring and Control System
Authors: Abba Sani , Wadumi Namkusong Jonah , Lee Jeong-A , Liz Crespo Maria
Published: August 2019

Irrigation systems are becoming increasingly important, owing to the increase in human population, global warming, and food demand. This study aims to design a low-cost autonomous sensor interface to automate the monitoring and control of irrigation systems in remote locations, and to optimize water use for irrigation farming. An internet of things-based irrigation monitoring and control system, employing sensors and actuators, is designed to facilitate the autonomous supply of adequate water from a reservoir to domestic crops in a smart irrigation systems. System development lifecycle and waterfall model design methodologies have been employed in the development paradigm. The Proteus 8.5 design suite, Arduino integrated design environment, and embedded C programming language are commonly used to develop and implement a real working prototype. A pumping mechanism has been used to supply the water required by the soil. The prototype provides power supply, sensing, monitoring and control, and internet connectivity capabilities. Experimental and simulation results demonstrate the flexibility and practical applicability of the proposed system, and are of paramount importance, not only to farmers, but also for the expansion of economic activity. Furthermore, this system reduces the high level of supervision required to supply irrigation water, enabling remote monitoring and control.
Toward the Required Detection Limits for Volatile Organic Constituents in Marine Environments with Infrared Evanescent Field Chemical Sensors
Authors: Dettenrieder Carina , Raichlin Yosef , Katzir Abraham , Mizaikoff Boris
Published: August 2019

A portable sensor system for the simultaneous detection of multiple environmentally relevant volatile organic compounds (VOCs) in real seawater based on Fourier transform infrared fiber-optic evanescent wave spectroscopy (FT-IR-FEWS) was developed. A cylindrical silver halide (AgX) fiber with an ethylene/propylene copolymer (E/P-co) coated flattened segment was used as an active optical transducer. The polymer membrane enriches the hydrophobic analytes, while water is effectively excluded from the penetration depth of the evanescent field. Determination of multicomponent mixtures (i.e., 10 VOCs in real-world seawater samples) collected in Arcachon Bay, France revealed a high accuracy and reproducibility with detection limits down to 560 ppb. The measurement showed no significant influence from changing water conditions (e.g., salinity, turbidity, and temperature or other interfering substances). The time constants for 90% saturation of the polymer ranged from 20 to 60 min. The sensor system is capable of being transported for on-site monitoring of environmental pollutants in aqueous matrices with efficient long-term stability, thus showing great potential to be utilized as an early warning system.
Comparison of Pre-Processing and Variable Selection Strategies in Group-Based GC×GC-TOFMS Analysis
Authors: Piotrowski Paulina , Place Benjamin
Published: August 2019

Chemometric analysis of comprehensive two-dimensional chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOFMS) data has been reported with various workflows, yet little effort has been devoted to evaluating the impacts of workflow variation on study conclusions. The report presented herein aims to investigate the effects of different pre-processing and variable selection strategies on the scores’ plot outputs from GC×GC-TOFMS data acquired from lavender and tea tree essential oils. Our results suggest that pre-processing, such as applying log transformation to the data set, can result in significant differentiation of sample clustering when compared to only mean centering. Additionally, exploring differences between analysis of variance, Fisher-ratio, and partial least squares-discriminant analysis feature selection resulted in little variation in scores plots. This work highlights the effects different chemometric workflows can have on results to help facilitate harmonization efforts.
Deep Metric Learning: A Survey
Authors: KAYA Mahmut , BİLGE Hasan Şakir
Published: August 2019

Metric learning aims to measure the similarity among samples while using an optimal distance metric for learning tasks. Metric learning methods, which generally use a linear projection, are limited in solving real-world problems demonstrating non-linear characteristics. Kernel approaches are utilized in metric learning to address this problem. In recent years, deep metric learning, which provides a better solution for nonlinear data through activation functions, has attracted researchers’ attention in many different areas. This article aims to reveal the importance of deep metric learning and the problems dealt with in this field in the light of recent studies. As far as the research conducted in this field are concerned, most existing studies that are inspired by Siamese and Triplet networks are commonly used to correlate among samples while using shared weights in deep metric learning. The success of these networks is based on their capacity to understand the similarity relationship among samples. Moreover, sampling strategy, appropriate distance metric, and the structure of the network are the challenging factors for researchers to improve the performance of the network model. This article is considered to be important, as it is the first comprehensive study in which these factors are systematically analyzed and evaluated as a whole and supported by comparing the quantitative results of the methods.
Immunohistochemical Review of Leydig Cell Lesions in Ochratoxin A-Treated Fischer Rats and Controls
Authors: Herman Diana , Mantle Peter
Published: August 2019

Ochratoxin A is best known as a potent renal carcinogen in male rats and mice after necessarily protracted ingestion, although valid extrapolation to any human disease has not been verified. The hypothesis that the toxin is a cause of human testicular cancer was proposed a decade ago and has proliferated since, partly through incomplete study of the scientific literature. Archived tumorous rat testes were available from Fischer F344 rats exposed to continuous dietary exposure for half of or the whole life in London in the 2000s. Renal cancer occurred in some of these cases and testicular tumours were observed frequently, as expected, in both treated and untreated animals. Application of clinical immunohistochemistry has for the first time consistently diagnosed the testicular hypertrophy in toxin-treated rats as Leydig cell tumours. Comparison is made with similar analysis of tumorous testes from control (untreated) rats from U.S. National Toxicology Program studies, both of ochratoxin A (1989) and the more recent one on Ginkgo biloba. All have been found to have identical pathology as being of sex cord-stromal origin. Such are rare in humans, most being of germinal cell origin. The absence of experimental evidence of any specific rat testicular cellular pathology attributable to long-term dietary ochratoxin A exposure discredits any experimental animal evidence of testicular tumorigenicity. Thus, no epidemiological connection between ochratoxin A and the incidence of human testicular cancer can be justified scientifically.
Evidence of West Nile Virus (WNV) Circulation in Wild Birds and WNV RNA Negativity in Mosquitoes of the Danube Delta Biosphere Reserve, Romania, 2016
Authors: Vasić Ana , Oșlobanu Luanda , Marinov Mihai , Crivei Luciana , Rățoi Ioana , Aniță Adriana , Aniță Dragoș , Doroșencu Alexandru , Alexe Vasile , Răileanu Ștefan , Simeunović Predrag , Raileanu Cristian , Falcuța Elena , Prioteasa Florian , Bojkovski Jovan , Pavlović Ivan , Mathis Alexander , Tews Birke , Savuţa Gheorghe , Veronesi Eva , Silaghi Cornelia ,   the SCOPES AMSAR training group
Published: August 2019

West Nile virus (WNV) is a zoonotic flavivirus whose transmission cycle in nature includes wild birds as amplifying hosts and ornithophilic mosquito vectors. Bridge vectors can transmit WNV to mammal species potentially causing West Nile Fever. Wild bird migration is a mode of WNV introduction into new areas. The Danube Delta Biosphere Reserve (DDBR) is a major stopover of wild birds migrating between Europe and Africa. The aim of this study was to investigate the presence of WNV in the DDBR during the 2016 transmission season in wild birds and mosquitoes. Blood from 68 wild birds (nine different species) trapped at four different locations was analyzed by competitive ELISA and Virus Neutralization Test (VNT), revealing positive results in 8/68 (11.8%) of the wild birds by ELISA of which six samples (three from juvenile birds) were confirmed seropositive by VNT. Mosquitoes (n = 6523, 5 genera) were trapped with CDC Mini Light traps at two locations and in one location resting mosquitoes were caught. The presence of WNV RNA was tested in 134 pools by reverse transcription quantitative PCR (RT-qPCR). None of the pools was positive for WNV-specific RNA. Based on the obtained results, WNV was circulating in the DDBR during 2016.
Sea Bass Immunization to Downsize the Betanodavirus Protein Displayed in the Surface of Inactivated Repair-Less Bacteria
Authors: Lama Raquel , Pereiro Patricia , Novoa Beatriz , Coll Julio
Published: August 2019

This work describes immunization of European sea bass (Dicentrarchus labrax) juveniles against viral nervous necrosis virus (VNNV), a betanodavirus causing worldwide mortalities in many fish species. Protection was obtained with the so-called spinycterin vehicles consisting of irreversibly DNA-damaged DNA-repair-less Escherichia coli displaying at their surface a downsized VNNV coat antigen. In this work we have (i) maximized bacterial expression levels by downsizing the coat protein of VNNV to a fragment (frgC91–220) containing most of its previously determined antigenicity, (ii) developed a scalable autoinduction culture media for E. coli based in soy-bean rather than in casein hydrolysates, (iii) enriched surface expression by screening different anchors from several prokaryotic sources (anchor + frgC91–220 recombinant products), (iv) preserved frgC91–220 antigenicity by inactivating bacteria by irreversible DNA-damage by means of Ciprofloxacin, and (v) increased safety using a repair-less E. coli strain as chassis for the spinycterins. These spinycterins protected fish against VNNV challenge with partial (Nmistic + frgC91–220) or total (YBEL + frgC91–220) levels of protection, in contrast to fish immunized with frgC91–220 spinycterins. The proposed spinycterin platform has high levels of environmental safety and cost effectiveness and required no adjuvants, thus providing potential to further develop VNNV vaccines for sustainable aquaculture.
The crystal structure of barrerite
Authors: Galli Ermanno , Alberti Alberto
Published: August 2019

La structure cristalline de la zéolite barrérite [(Ca₁,₇ Mg₀,₃ Na₁₀,₉ K₂,₁) (Al₁₆,₄Si₅₅,₄) O₁₄₄] • 51,6H₂O a été étudiée au moyen des rayons X : le groupe spatial est Amma avec a = 13,643 (2), b = 18,200 (3), c = 17,842 (3) Å. La charpente de la barrérite est identique à celles de la stilbite et de la stellérite.

L'abaissement de la symétrie du groupe spatial Fmmm de la stellerite au groupe spatial Amma de la barrérite est une conséquence de la présence, dans des sites vacants, de cations soumis à des déplacements induits par des axes hélicoïdaux parallèles à a.
Réactions de basaltes alcalins des Causses, du Vivarais et du Velay (France) avec les xénocristaux et les minéraux des enclaves homoéogènes
Authors: Berger Emmanuel Tobie , Forette Marie-Claude
Published: August 2019

Nepheline-basalts of Causses, Vivarais and Velay (Massif central, France) contain numerous cognate inclusions, lherzolites nodules and xenoliths. From the study of reactions between these basalts and some minerals belonging to their inclusions, several conclusions may be drawn.

1. Opaque minerals surrounding spinels may have crystallized in equilibria with the liquid, but they also may have been re-equilibrated later by diffusion process. This implies the contamination of the basaltic liquid with an enrichment in Al and Mg and a loss of Fe and Ti.

2. Olivines grains which surround the opx. appear to be the product of direct recrystallization of those opx. The ratios Mg/Mg + Fe show that opx. control strictly the compositions of olivines. Such a process involves the Si enrichment of the basaltic liquid.

3. Some salites have grown like coaxial crystals with opx. and cpx. ; their composition on the contrary have been controlled by the basaltic liquid. The observed differences for salites Al content imply their crystallization in a wide range of temperature.
La structure cristalline de l'oxyfluorotantalate de potassium K2Ta2O3F6
Authors: Vlasse Marcus , Chaminade Jean-Pierre , Pouchard Michel
Published: August 2019

La structure de l'oxyfluorotantalate de potassium K₂Ta₂O₃F₆ a été déterminée à partir d'une synthèse de Patterson et affinée par la méthode des moindres carrés (R = 0,065). La maille élémentaire de symétrie orthorhombique comporte le groupe spatial Pnma (a = 10,212 (5) Å ; b = 5,581 (3) Å ; c = 14,499 (7) Å) et contient quatre motifs formulaires. Le réseau est formé de chaînes doubles se développant en zigzag dans la direction de l'axe b, constituées d'octaèdres (TaO₃F₃) ⁴⁻ mettant en commun trois sommets oxygénés d'une même face. Des ions K⁺ occupent les sites vacants entre les files assurant la cohésion du réseau.
Variation du paramètre cristallin d'une zéolite Y au cours de sa cristallisation à partir d'un gel. Mise en évidence d'une hétérogénéité de composition
Authors: Guth Jean-Louis , Caullet Philippe , Wey Raymond
Published: August 2019

The mean parameter a₀ of a zeolite Y grown from a Na aluminosilicate gel increases during crystallisation. The inverse evolution occurs when zeolite Y progressively turns into gismondite. Therefore samples of faujasite must have an heterogeneous composition. We think that in every crystal the ratio SiO₂/Al₂O₃ must be distributed according to a gradient directed from the center to the surface. This phenomena, which is probably general for all synthetic zeolites, is of great importance when they are used as catalysts.
L'indice à sulfoantimoniures de plomb des Cougnasses (commune d'Orpierre, Hautes-Alpes). Partie II. Étude paragénétique
Authors: Moëlo Yves , Lévy Claude
Published: August 2019

L'analyse paragénétique détaillée du minerai de l'indice des Cougnasses a permis, à partir de l'interprétation des modes de contact entre minéraux selon huit types de processus génétique, de distinguer deux phases principales :

— une phase I à gangue de carbonates de fer dont la succession montre un rapport Pb/Sb régulièrement croissant :

• premier stade : zinkénite + quartz,

• deuxième stade : plagionite → semseyite (+ bournonite) → géocronite → galène, avec blende terminale ;

— une phase II à gangue de barytine (initiale) et de calcite (terminale) avec, comme succession la plus fréquente :

boulangérite initiale, puis chalcopyrite (+ galène et blende) → tétraédrite → bournonite + andorite˗ramdohrite,

et, pour les sulfures de fer : mispickel → marcasite → pyrite.

Deux modèles métallogéniques sont proposés :

— pour la phase I, un processus de mélange ascendant le long d'une fracture, d'une solution familière, source de l'antimoine et du soufre, et d'une solution étrangère, probablement d'origine triasique, source du plomb et du zinc ;

— pour la phase II, un processus de remaniement par une solution oxydante de la minéralisation primaire.

L'antagonisme génétique observé entre la semseyite (phase I) et la boulangérite (phase II) semblerait déterminé par la variation du pouvoir oxydant du soufre entre les deux milieux générateurs, la boulangérite se formant pour une plus faible activité en soufre de la solution que la semseyite.
Methods of management and motivation in personnel management of the center of physical therapy and improving the quality of services for patients with orthopedic profile at the outpatient stage
Authors: Vitomskyi V.V. , Lazarіeva О.B. , Fedorenko S. М. , Vitomskа Витомская
Published: August 2019

Objective: to identify the main approaches in the management and motivation of the staff of the center to improve the effectiveness of physical therapy in orthopedic disorders, to form ways to take these features into account in managing the process of physical therapy.

Methods: theoretical analysis and generalization of literary sources, method of systematization of scientific information.

Results. It is advisable to use a fairly wide range of management techniques in the management of staff to provide physical therapy services, since it is about the impact on a rather complex system - the team of physical therapists, which in turn have a controlling influence on the not less complex systems - patients. The use of management methods can potentially contribute to a number of positive changes in the activities of the staff of physical therapists. The additional impact of these methods will be directed at the patient, in particular, in improving the quality of services. The work of a physical therapist is rather debilitating both from the physical side and from the psychological one. Therefore, the motivation of the staff is important in the management of physical therapists, as well as other employees of the Center for the provision of physical therapy services to patients with orthopedic profile. The study of the problem of motivation has a significant theoretical and practical significance, since the most valuable resource in the current conditions of the market of physical therapy services is personnel, not equipment. Therefore, the responsibility of the leader of a successful center for the provision of physical therapy services is that the motivational goals of the employees are largely correlated with the interests of the center and led to the final result to success, which can be characterized as achieving a useful result immediately to all participants in the system " the head is a physical therapist - a patient. " In a team of physical therapy center, as in any enterprise, there are different types of workers, and the choice of one concept of motivation is mainly determined by the majority of employees of a certain type in the team. The paper outlines the features of the selection and use motivational concepts for the staff center physical therapy. The theory of motivation is considered. Economic and non-economic motivational factors are allocated within the framework of the center for providing physical therapy services, the model of motivation of the personnel is given.

Conclusion. The quality and performance of physical therapists in today's market conditions depends not only on professionalism and competence, but also on management, motivation, satisfaction of their needs and loyalty.
The model of prediction of changes in the functional state of athletes engaged in hand-to-hand combat under the influence of the training load
Authors: Kochina M.L. , Kochin O.V. , Firsov A.G. , Chernozub A.A. , Adamovich R.G.
Published: August 2019

The purpose of the work is to develop a model for predicting changes in the functional state of athletes engaged in hand-to-hand combat, under the influence of a training load using psychophysiological indicators.

Material and methods. The study involved 24 male athletes who are professionally engaged in hand-to-hand combat with full contact with the opponent (full contact), and 20 athletes. The average age of the athletes was 19-26 years. Research methods: analysis of scientific and methodological sources, psychophysiological, mathematical statistics, fuzzy logic.

Results. The conducted studies proved the presence of significant differences in the values ​​of psychophysiological indicators and the reaction to the training load of athletes with different levels of fitness, which made it possible to use these indicators to build a model for predicting the dynamics of a functional state. Changes in the functional state, determined by psychophysiological indicators, confirmed by corresponding changes in indicators of heart rate variability. The developed forecast model allows using two psychophysiological indicators (the time of a complex visual-motor reaction and the response index to a moving object), received to the load, to predict a change in the functional state of athletes engaged in hand-to-hand combat, with an overall accuracy of 95.5%. The forecast of changes in the functional state provides the trainer with the opportunity to timely adjust the volume of training loads and training regimen.

Conclusions. Significant differences between groups of trained athletes and beginners in terms of the state of nervous processes (the time of a complex visual-motor reaction and the response index to a moving object) to the load were revealed, which allowed developing a model for predicting the functional reaction to the load in athletes with different levels of sportsmanship. Using the obtained model allows predicting changes in the functional state of athletes that will take place under the influence of the test load, according to psychophysiological indicators without using the load with an overall accuracy of 95.5%.
APPLICATIONS OF CHITOSAN-SULFATHIAZOLE AS ANTIMICROBIAL AGENT
Authors: Zvezdova Dilyana
Published: August 2019

Chitosan, a hydrophilic biopolymer industrially obtained by N-deacetylation of chitin, can be applied as an antimicrobial agent. It highlights the applications of chitosan as an antimicrobial agent against fungi, bacteria, and viruses and as an elicitor of plant defense mechanisms. A series of novel chitosan-sulfathiazole nanocomposite (CSFZ) films were prepared by using solvent casting method for wound healing application. Fourier transform infrared spectroscopy (FTIR) was employed to ascertain the interaction between negatively charged sulfathiazole and positively charged chitosan. Moreover, the antibacterial activity of the films was investigated against gram positive and gram negative microorganisms. It was found that all CSFZ films showed good inhibitory activity against all the tested bacteria as compared to control. The above analysis suggested that the CSFZ films could be used as potential candidates for wound healing application.
PENGARUH KEPUASAN KERJA DAN KOMPETENSI TERHADAP KINERJA KARYAWAN PERUSAHAAN AIRNAV INDONESIA
Authors: Nurudin Nuridin , S Yuli Anggraini
Published: August 2019

One of the main determinants that influence the success rate of a company is employee performance. Efforts to improve employee performance, including by pay attention to work satisfaction and competence. This research was aimed to determine the effect of work satisfaction and competence to employees performance of AirNav Indonesia company. The population in this research were employess of AirNav Indonesia company at financial department were amounted to 387 people. The sample in this study were amounted to 80 employees using Slovin formula with random sampling technique. The method of data technique which used in the research was using multiple linear regression analysis, coefficient of determination and hypothesis test. Before being analyzed the instrument test was carried out. The results of this research can be known that work satisfaction and competence have a positive and significant influence to employees performance of AirNav Indonesia company.
PENGARUH KEPEMIMPINAN DAN KOMPETENSI TERHADAP KINERJA ORGANISASI PT. SAMICK INDONESIA
Authors: Dharmawan, MM. Donny , Esnawan Erfan
Published: August 2019

This study aims to determine the magnitude of the influence of leadership and competence on the organizational performance of PT. Samick Indonesia. This study uses Simple Random Sampling. The population in this study were employees of PT. Samick Indonesia. With 156 samples. Data collection techniques using questionnaires which then have been tested for validity and reliability. The data analysis technique used to answer the hypothesis is multiple regression. The results of this study indicate that, Leadership is able to improve Organizational Performance. Competence is able to improve organizational performance thus it can be concluded that leadership and competence have a positive and significant influence on the organizational performance of PT. Samick Indonesia.
PENGARUH KEPEMIMPINAN DAN PELATIHAN TERHADAP KINERJA KARYAWAN BANK DKI JAKARTA
Authors: Anwar Nurdin Muhammad Reza
Published: August 2019

The leadership problem has become a separate problem for the management of Bank DKI Jakarta, where the past few years have shown that there is a decrease in the performance of each manager, where this decline occurs due to a decrease in the performance of each individual employee below. The application of bad leadership will have an impact on the achievement of corporate goals obtained from not the maximum results achieved from each individual employee. On the other hand, in anticipating vacancies in certain positions and in improving job skills and skills, the company provides training for employees in the hope that all of the goals and objectives of the company can be achieved. The purpose of this study was to analyze the influence of leadership and training both simultaneously on employee performance at Bank DKI Jakarta. In primary data collection the author involved 57 permanent employees at the Bank DKI Jakarta head office. The technique of analysis uses simple regression analysis and multiple regression. The results showed that there were influences both partially and simultaneously leadership variables and training on employee performance.