bluuebunny/crossref_metadata_2025 huggingface dataset:
Moving Information Horizon Approach for Dynamic Game Models
Authors: Petrosian Ovanes , Shi Lihong , Li Yin , Gao Hongwei
Published: December 2019

In the paper, a new class of dynamic game models with a moving information horizon or dynamic updating is studied. In this class of games, players do not have full information about the game structure (motion equations, payoff functions) on the interval on which the game is defined. It is supposed that the players at each stage of the dynamic game have only truncated information about the game structure defined by the information horizon. Cooperative and noncooperative settings are considered in the paper. Results are illustrated using the oligopoly advertising game model, and comparison between the solution in the initial game model and in the game model with moving information horizon is presented. Simulation results are presented.
A High-Order Convex Splitting Method for a Non-Additive Cahn–Hilliard Energy Functional
Authors: Lee Hyun Geun , Shin Jaemin , Lee June-Yub
Published: December 2019

Various Cahn–Hilliard (CH) energy functionals have been introduced to model phase separation in multi-component system. Mathematically consistent models have highly nonlinear terms linked together, thus it is not well-known how to split this type of energy. In this paper, we propose a new convex splitting and a constrained Convex Splitting (cCS) scheme based on the splitting. We show analytically that the cCS scheme is mass conserving and satisfies the partition of unity constraint at the next time level. It is uniquely solvable and energy stable. Furthermore, we combine the convex splitting with the specially designed implicit–explicit Runge–Kutta method to develop a high-order (up to third-order) cCS scheme for the multi-component CH system. We also show analytically that the high-order cCS scheme is unconditionally energy stable. Numerical experiments with ternary and quaternary systems are presented, demonstrating the accuracy, energy stability, and capability of the proposed high-order cCS scheme.
Assessment of Sclerostin and Interleukin 6 Levels and Selected Anthropometric Parameters in Patients Receiving Hemodialysis Replacement Therapy—Pilot Study
Authors: Turon-Skrzypinska Agnieszka , Dutkiewicz Grazyna , Marchelek-Mysliwiec Malgorzata , Dziedziejko Violetta , Ciechanowski Kazimierz , Ryl Aleksandra , Rotter Iwona
Published: December 2019

Background and Objectives: Chronic kidney disease (CKD) is an important public health problem associated with, e.g., progressive renal insufficiency, bone mineral disorders, and increased inflammatory marker levels. The objective of this study was to compare selected biochemical parameters and to evaluate potential correlations between selected anthropometric parameters and levels of sclerostin and interleukin 6 (IL-6) in blood plasma. Materials and Methods: The study group consisted of 34 patients aged 59.8 ± 9.8 years, receiving hemodialysis therapy. The control group consisted of 31 individuals aged 55.4 ± 9.37 years, presenting with GFR (glomerular filtration rate) of more than 60 mL/min/1.73 m2. Selected anthropometric and biochemical parameters were assessed at baseline, as well as 3 and 6 months into the study. Statistical analyses were performed using the Statistica 2014 software package (StatSoft, Inc.Tulsa, OK, USA). Analyses included descriptive statistics, intergroup comparisons using the Mann-Whitney U-test or the Kruskal-Wallis test, and Spearman’s correlation analysis. The significance level was set at p ≤ 0.005. Results: At all measurement time points, i.e., at baseline, at month 3, and at month 6, the IL-6 levels in the study group were significantly higher than those in the control group. No correlations were observed in the study group between SCL or IL-6 levels and anthropometric parameters such as body weight, body mass index (BMI), or waist circumference. Conclusions: Patients receiving hemodialysis replacement therapy present with significantly higher levels of IL-6 in their blood. Anthropometric parameters (body weight, BMI, and waist circumference) have no impact on sclerostin and IL-6 levels in patients undergoing hemodialysis therapy. The results obtained are satisfactory, and the research will be continued.
Mapping Magnetic Properties and Relaxation in Vanadium(IV) Complexes with Lanthanides by Electron Paramagnetic Resonance
Authors: Kurganskii Ivan V. , Bazhina Evgeniya S. , Korlyukov Alexander A. , Babeshkin Konstantin A. , Efimov Nikolay N. , Kiskin Mikhail A. , Veber Sergey L. , Sidorov Alexey A. , Eremenko Igor L. , Fedin Matvey V.
Published: December 2019

Vanadium(IV) complexes are actively studied as potential candidates for molecular spin qubits operating at room temperatures. They have longer electron spin decoherence times than many other transition ions, being the key property for applications in quantum information processing. In most cases reported to date, the molecular complexes were optimized through the design for this purpose. In this work, we investigate the relaxation properties of vanadium(IV) ions incorporated in complexes with lanthanides using electron paramagnetic resonance (EPR). In all cases, the VO6 moieties with no nuclear spins in the first coordination sphere are addressed. We develop and implement the approaches for facile diagnostics of relaxation characteristics in individual VO6 moieties of such compounds. Remarkably, the estimated relaxation times are found to be close to those of other vanadium-based qubits obtained previously. In the future, a synergistic combination of qubit-friendly properties of vanadium ions with single-molecule magnetism and luminescence of lanthanides can be pursued to realize new functionalities of such materials.
Study on the Antinociceptive Activity and Mechanism of Action of Isolated Saponins from Siolmatra brasiliensis (Cogn.) Baill
Authors: Giorno Thais Biondino Sardella , Santos Carlos Henrique Corrêa dos , Carvalho Mario Geraldo de , Silva Virgínia Cláudia da , Sousa Paulo Teixeira de , Fernandes Patricia Dias , Boylan Fabio
Published: December 2019

Infusions of roots of Siolmatra brasiliensis (Cogn.) Baill, (“taiuiá”, “cipó-tauá”) are used for toothache pain and ulcers. We aimed to study the antinociceptive effects and identify the possible mechanism of action of this plant and its isolated substances (cayaponoside A1, cayaponoside B4, cayaponoside D, and siolmatroside I). Hydroethanol extract (HE), ethyl acetate fraction (EtOAc), and isolated saponins were evaluated in chemical and thermal models of pain in mice. Animals were orally pretreated and evaluated in the capsaicin- or glutamate-induced licking and in the hot plate tests. The antinociceptive mechanism of action was evaluated using the hot plate test with the following pretreatments: Atropine (cholinergic antagonist), naloxone (opioid antagonist), or L-NAME (nitric oxide synthase inhibitor). All extracts and isolated saponins increased the area under the curve in the hot plate test. Tested substances induced a higher effect than the morphine-treated group. Our data suggest that stems of S. brasiliensis and their isolated substances present antinociceptive effects. Cholinergic and opioidergic pathways seem to be involved in their mechanism of action. Taken together our data corroborate the traditional use of the plant and expands the information regarding its use.
Kleeb Bua Daeng, a Thai Traditional Herbal Formula, Ameliorated Unpredictable Chronic Mild Stress-Induced Cognitive Impairment in ICR Mice
Authors: Maneenet Juthamart , Daodee Supawadee , Monthakantirat Orawan , Boonyarat Chantana , Khamphukdee Charinya , Kwankhao Pakakrong , Pitiporn Supaporn , Awale Suresh , Chulikhit Yaowared , Kijjoa Anake
Published: December 2019

Thai traditional herbal formula ‘’Kleeb Bua Daeng (KBD)’’consists of a 1:1:1 ratio (dry weight) of three medicinal plants: Piper nigrum fruit, the aerial part of Centella asiatica and the petals of Nelumbo nucifera. Oral administration of KBD to unpredictable chronic mild stress (UCMS) mice significantly improved their cognitive function caused by chronic mild stress. Daily administration of KBD significantly decreased the serum corticosterone (CORT) and malondialdehyde (MDA) levels but increased the catalase and superoxide dismutase activities in both frontal cortex and hippocampus. The effects of KBD were similar to those caused by oral administration of vitamin E. HPLC analysis of the KBD extract revealed the presence of piperine, madecassoside, asiaticoside, luteolin-7-O-glucoside, rutin, kaempferol-3-glucoside, quercetin, kaempferol and ferulic acid as major constituents.
Characterization and Identification of Prenylated Flavonoids from Artocarpus heterophyllus Lam. Roots by Quadrupole Time-Of-Flight and Linear Trap Quadrupole Orbitrap Mass Spectrometry
Authors: Ye Jin-Bao , Ren Gang , Li Wen-Yan , Zhong Guo-Yue , Zhang Min , Yuan Jin-Bin , Lu Ting
Published: December 2019

In this study, a combination of quadrupole time-of-flight mass spectrometry (Q-TOF-MS) and linear trap quadrupole orbitrap mass spectrometry (LTQ-Orbitrap-MS) was performed to investigate the fragmentation behaviors of prenylated flavonoids (PFs) from Artocarpus plants. Fifteen PFs were selected as the model molecules and divided into five types (groups A–E) according to their structural characteristics in terms of the position and existing form of prenyl substitution in the flavone skeleton. The LTQ-Orbitrap-MSn spectra of the [M − H]− ions for these compounds provided a wealth of structural information on the five different types of compounds. The main fragmentation pathways of group A were the ortho effect and retro Diels–Alder (RDA), and common losses of C4H10, CO, and CO2. The compounds in group B easily lose C6H12, forming a stable structure of a 1,4-dienyl group, unlike those in group A. The fragmentation pathway for group C is characterized by obvious 1,4A−, 1,4B− cracking of the C ring. The diagnostic fragmentation for group D is obvious RDA cracking of the C ring and the successive loss of CH3 and H2O in the LTQ-Orbitrap-MSn spectra. Fragmentation with successive loss of CO or CO2, ·CH3, and CH4 in the LTQ-Orbitrap-MSn spectra formed the characteristics of group E. The summarized fragmentation rules were successfully exploited to identify PFs from Artocarpus heterophyllus, a well-known Artocarpus plant, which led to the identification of a total of 47 PFs in this plant.
Image Encryption System Based on a Nonlinear Joint Transform Correlator for the Simultaneous Authentication of Two Users
Authors: Vilardy O. Juan M. , Millán María S. , Pérez-Cabré Elisabet
Published: December 2019

We propose a new encryption system based on a nonlinear joint transform correlator (JTC) using the information of two biometrics (one digital fingerprint for each user) as security keys of the encryption system. In order to perform the decryption and authentication in a proper way, it is necessary to have the two digital fingerprints from the respective users whose simultaneous authentication is pursued. The proposed security system is developed in the Fourier domain. The nonlinearity of the JTC along with the five security keys given by the three random phase masks and the two digital fingerprints of the two users allow an increase of the system security against brute force and plaintext attacks. The feasibility and validity of this proposal is demonstrated using digital fingerprints as biometrics in numerical experiments.
United Forces of Botanical Oils: Efficacy of Neem and Karanja Oil against Colorado Potato Beetle under Laboratory Conditions
Authors: Kovaříková Kateřina , Pavela Roman
Published: December 2019

Neem and karanja oil are the most promising botanical insecticides in crop protection nowadays. Given that information about the insecticidal abilities of these oils is lacking, the aim was to explore the effects of neem and karanja oil binary mixtures. The insecticidal activity of NeemAzal T/S (Trifolio-M GmbH, Lahnau, Germany) (neem oil), Rock Effect (Agro CS a.s., Česká Skalice, Czech Republic) (karanja oil), and their binary mixes (at 1:1, 1:2, and 2:1 volume ratios) against the larvae of the Colorado potato beetle (CPB; Leptinotarsa decemlineata) was studied. In our bioassays, a synergistic effect of the mixtures, which was dose-dependent, was observed for the first time against this pest. The most effective blend was the 1:1 ratio. Its efficacy was more or less the same as, or even greater than, the neem oil alone. The LC50 of neem oil two days after application was (0.075 g·L−1) and the LC50 of the mixture was (0.065 g·L−1). The LC50 of karanja oil was (0.582 g·L−1), which was much higher than the LC50 of neem oil. The LC90 of neem oil five days after application was (0.105 g·L−1) and the LC90 of the mixture was (0.037 g·L−1). The LC90 of karanja oil was (1.032 g·L−1). The results demonstrate that it is possible to lower the doses of both oils and get improved efficacy against CPB larvae; nevertheless, further verification of the results in field conditions is necessary.
Investigating the In-Flow Characteristics of Multi-Operation Conditions of Cross-Flow Fan in Air Conditioning Systems
Authors: Zhang Weijie , Yuan Jianping , Si Qiaorui , Fu Yanxia
Published: December 2019

Cross-flow fans are widely used in numerous applications such as low-pressure ventilation, household appliances, laser instruments, and air-conditioning equipment. Cross-flow fans have superior characteristics, including simple structure, small size, stable airflow, high dynamic pressure coefficient, and low noise. In the present study, numerical simulation and experimental research were carried out to study the unique secondary flow and eccentric vortex flow characteristics of the internal flow field in multi-operating conditions. To this end the vorticity and the circumferential pressure distribution in the air duct are obtained based on the performed experiments and the correlation between spectral characteristics of multiple operating conditions and the inflow state is established. The obtained results show that when the area of the airflow passage decreases while the area of the eccentric vortex area gradually increases, then the airflow of the cross-flow fan decreases, the outlet expands, and the flow pattern uniformity reduces. It was found that wakes form in the vicinity of the blade and the tail of the volute tongue, which generate pressure pulsation, and aerodynamic noise. The pressure distribution along the inner circumference shows that the total minimum pressure appears in the eccentric vortex near the volute tongue and the volute returns near the zone. Moreover, it was found that the total pressure near the eccentric vortex is significantly smaller than that of the main flow zone. As the flow rate decreases, the pressure pulsation amplitude of the eccentric vortex region significantly increases, while the static and total pressure pulsation amplitudes are gradually increased. Close to the eccentric vortex on the inner side of the blade in the volute tongue area, total pressure is low, total pressure on the outside of the blade is not affected, and pressure difference between the inner and outer sides is large. When the flow rate of the cross-flow fan is 0.4 Qd, there is no obvious peak at the harmonic frequency of the blade passage frequency. This shows that the aerodynamic noise is caused by the main unstable flow.
Fidelity and Entropy Production in Quench Dynamics of Interacting Bosons in an Optical Lattice
Authors: Roy Rhombik , Lévêque Camille , Lode Axel U. J. , Gammal Arnaldo , Chakrabarti Barnali
Published: December 2019

We investigate the dynamics of a few bosons in an optical lattice induced by a quantum quench of a parameter of the many-body Hamiltonian. The evolution of the many-body wave function is obtained by solving the time-dependent many-body Schrödinger equation numerically, using the multiconfigurational time-dependent Hartree method for bosons (MCTDHB). We report the time evolution of three key quantities, namely, the occupations of the natural orbitals, that is, the eigenvalues of the one-body reduced density matrix, the many-body Shannon information entropy, and the quantum fidelity for a wide range of interactions. Our key motivation is to characterize relaxation processes where various observables of an isolated and interacting quantum many-body system dynamically converge to equilibrium values via the quantum fidelity and via the production of many-body entropy. The interaction, as a parameter, can induce a phase transition in the ground state of the system from a superfluid (SF) state to a Mott-insulator (MI) state. We show that, for a quench to a weak interaction, the fidelity remains close to unity and the entropy exhibits oscillations. Whereas for a quench to strong interactions (SF to MI transition), the relaxation process is characterized by the first collapse of the quantum fidelity and entropy saturation to an equilibrium value. The dip and the non-analytic nature of quantum fidelity is a hallmark of dynamical quantum phase transitions. We quantify the characteristic time at which the quantum fidelity collapses and the entropy saturates.
Intrusion Detection of UAVs Based on the Deep Belief Network Optimized by PSO
Authors: Tan Xiaopeng , Su Shaojing , Zuo Zhen , Guo Xiaojun , Sun Xiaoyong
Published: December 2019

With the rapid development of information technology, the problem of the network security of unmanned aerial vehicles (UAVs) has become increasingly prominent. In order to solve the intrusion detection problem of massive, high-dimensional, and nonlinear data, this paper proposes an intrusion detection method based on the deep belief network (DBN) optimized by particle swarm optimization (PSO). First, a classification model based on the DBN is constructed, and the PSO algorithm is then used to optimize the number of hidden layer nodes of the DBN, to obtain the optimal DBN structure. The simulations are conducted on a benchmark intrusion dataset, and the results show that the accuracy of the DBN-PSO algorithm reaches 92.44%, which is higher than those of the support vector machine (SVM), artificial neural network (ANN), deep neural network (DNN), and Adaboost. It can be seen from comparative experiments that the optimization effect of PSO is better than those of the genetic algorithm, simulated annealing algorithm, and Bayesian optimization algorithm. The method of PSO-DBN provides an effective solution to the problem of intrusion detection of UAV networks.
Gaze and Eye Tracking: Techniques and Applications in ADAS
Authors: Khan Muhammad Qasim , Lee Sukhan
Published: December 2019

Tracking drivers’ eyes and gazes is a topic of great interest in the research of advanced driving assistance systems (ADAS). It is especially a matter of serious discussion among the road safety researchers’ community, as visual distraction is considered among the major causes of road accidents. In this paper, techniques for eye and gaze tracking are first comprehensively reviewed while discussing their major categories. The advantages and limitations of each category are explained with respect to their requirements and practical uses. In another section of the paper, the applications of eyes and gaze tracking systems in ADAS are discussed. The process of acquisition of driver’s eyes and gaze data and the algorithms used to process this data are explained. It is explained how the data related to a driver’s eyes and gaze can be used in ADAS to reduce the losses associated with road accidents occurring due to visual distraction of the driver. A discussion on the required features of current and future eye and gaze trackers is also presented.
Accurate Indoor-Positioning Model Based on People Effect and Ray-Tracing Propagation
Authors: Firdaus Firdaus , Ahmad Noor Azurati , Sahibuddin Shamsul
Published: December 2019

Wireless local area networks (WLAN)-fingerprinting has been highlighted as the preferred technology for indoor positioning due to its accurate positioning and minimal infrastructure cost. However, its accuracy is highly influenced by obstacles that cause fluctuation in the signal strength. Many researchers have modeled static obstacles such as walls and ceilings, but few studies have modeled the people’s presence effect (PPE), although the human body has a great impact on signal strength. Therefore, PPE must be addressed to obtain accurate positioning results. Previous research has proposed a model to address this issue, but these studies only considered the direct path signal between the transmitter and the receiver whereas multipath effects such as reflection also have a significant influence on indoor signal propagation. This research proposes an accurate indoor-positioning model by considering people’s presence and multipath using ray-tracing, we call it (AIRY). This study proposed two solutions to construct AIRY: an automatic radio map using ray tracing and a constant of people’s effect for the received signal strength indicator (RSSI) adaptation. The proposed model was simulated using MATLAB software and tested at Level 3, Menara Razak, Universiti Teknologi Malaysia. A K-nearest-neighbor (KNN) algorithm was used to define a position. The initial accuracy was 2.04 m, which then reduced to 0.57 m after people’s presence and multipath effects were considered.
A Warning against the Negligent Use of Cannabidiol in Professional and Amateur Athletes
Authors: Lachenmeier Dirk W. , Diel Patrick
Published: December 2019

Cannabidiol (CBD) is a non-psychoactive cannabinoid, widely marketed to athletes for claimed effects such as decreased anxiety, fear memory extinction, anti-inflammatory properties, relief of pain and for post-exercise recovery. The World Anti-Doping Agency (WADA) has excluded CBD from its list of prohibited substances. Nevertheless, caution is currently advised for athletes intending to use the compound—except CBD, all other cannabinoids are still on the prohibited list. CBD products, specifically non-medicinal, so-called full-spectrum cannabis extracts, may contain significant levels of these substances, but also contaminations of tetrahydrocannabinol (THC) (>2.5 mg/day in >30% of products on the German market) potentially leading to positive doping tests. Labelled claims about CBD content and absence of THC are often false and misleading. Contaminations with the psychoactive THC can result in adverse effects on cognition and, in general, the safety profile of CBD with respect to its toxicity is a controversial topic of discussion. For these reasons, we would currently advise against the use of over-the-counter CBD products, especially those from dubious internet sources without quality control.
A Hybrid GIS and AHP Approach for Modelling Actual and Future Forest Fire Risk Under Climate Change Accounting Water Resources Attenuation Role
Authors: Busico Gianluigi , Giuditta Elisabetta , Kazakis Nerantzis , Colombani Nicolò
Published: December 2019

Forest wildfires usually occur due to natural processes such as lightning and volcanic eruptions, but at the same time they are also an effect of uncontrolled and illegal anthropogenic activities. Different factors can influence forest wildfires, like the type of vegetation, morphology, climate, and proximity to human activities. A precise evaluation of forest fire issues and of the countermeasures needed to limit their impact could be satisfactory especially when forest fire risk (FFR) mapping is available. Here, we proposed an FFR evaluation methodology based on Geographic Information System (GIS) and the analytic hierarchy process (AHP). The study area is the Campania region (Southern Italy) that, for the last 30 years, has been affected by numerous wildfires. The proposed methodology analyzed 12 factors, and AHP was used for weight assignment, offering a new approach to some parameters. The method divided the study area into five risk classes, from very low to very high. Validation with fire alerts showed a good correlation between observed and predicted fires (0.79 R2). Analyzing the climate projections, a future FFR for 2040 was also assessed. The proposed methodology represents a reliable screening tool to identify areas under forest fire risk, and can help authorities to direct preventive actions.
Sea Surface-Visible Aquaculture Spatial-Temporal Distribution Remote Sensing: A Case Study in Liaoning Province, China from 2000 to 2018
Authors: Kang Junmei , Sui Lichun , Yang Xiaomei , Liu Yueming , Wang Zhihua , Wang Jun , Yang Fengshuo , Liu Bin , Ma Yuanzheng
Published: December 2019

Aquaculture plays an important role in providing food and reducing poverty but it affects environmental change and coastal ecosystems. Remote sensing is a technology that is helpful in the spatial-temporal dynamic monitoring of aquaculture, coastal management, and environmental monitoring. Most research focuses on inland and coastal areas, and little attention is paid to the extensive distribution of marine aquaculture. As an example, we use the freely available Landsat data of the developed marine aquaculture Liaoning Province of China and use the object-oriented automatic extraction method to analyze the spatial and temporal distribution information of marine aquaculture from 2000 to 2018. The accuracy evaluation from the randomly distributed sample points in high-resolution remote sensing images shows that the extraction accuracy for all of the five individual years of aquaculture area was higher than 82%. The results showed that (1) in the past 19 years, the area of marine aquaculture in Liaoning Province showed an increasing trend, which increased from 35.41 km2 in 2000 to 201.83 km2 in 2018, approximately 5.7 times increase in total area, but the growth rate decreased slightly due to government policy and the environmental quality of the sea area. (2) The centroid of offshore aquaculture in Liaoning Province shows a migration pattern to the northeast, in general, extending from the Dalian Bay sea area to the eastern sea area of the Dalian Chengshantou National Nature Reserve of Coastal Landform in the northeastern direction, and the migration distance reached 48.78 km. Moreover, the migration distance between 2005 and 2010 was the largest of all of the periods, reaching 35.43 km. The new marine aquaculture areas are mainly concentrated in the eastern direction of Xiaoyao Bay, the Changshan Islands, and Guanglu Island in Changhai County. (3) The landscape pattern of marine aquaculture in Liaoning Province is split, large-scale aquaculture and small-scale aquaculture are symbiotic, and landscape ecological activities are active. For local managers, this study can provide valuable supporting data for the assessment of marine aquaculture yield in this region, comprehensive control and management of the marine environment, and stability of the marine ecosystem. For other countries or regions, this work provides a great reference value for monitoring the dynamic spatial distribution of marine aquaculture.
Field-Based Tests for the Assessment of Physical Fitness in Children and Adolescents Practicing Sport: A Systematic Review within the ESA Program
Authors: Tabacchi Garden , Lopez Sanchez Guillermo F. , Nese Sahin Fatma , Kizilyalli Meltem , Genchi Rosario , Basile Michele , Kirkar Musa , Silva Carlos , Loureiro Nuno , Teixeira Eduardo , Demetriou Yolanda , Sturm David Joseph , Pajaujene Simona , Zuoziene Ilona J. , Gómez-López Manuel , Rada Ante , Pausic Jelena , Lakicevic Nemanja , Petrigna Luca , Feka Kaltrina , Ribeiro Ana , Alesi Marianna , Bianco Antonino
Published: December 2019

High levels of physical fitness (PF) can positively affect both health and cognitive function, thus monitoring its levels in youth can help increase health and quality of life in adult populations later on. This systematic review aims to identify PF field-based tests used in young European populations practicing sport to find tools that are adequate for the considered target involving a new battery within the Enriched Sport Activities (ESA) project. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement was followed. In the 83 identified articles, the main tests used were: vertical/horizontal jumps (for muscular strength/power); push-ups, running at maximum effort, sit-ups (for muscular strength/endurance); multistage non-intermittent and intermittent tests (for aerobic endurance); sit and reach (for flexibility); sprinting and agility T-tests (for speed and agility, respectively); 10 × 5 m shuttle run (SR) (for both speed and agility). Few studies assessed coordination, reaction time, power, and balance. Although the selected tests are widely used and validated, they do not determine all PF aspects and do not reflect sport-specific features. A final decision was made for the inclusion of the following tests: standing broad jump, seated medicine ball throw, 20 m SR test, 30 m sprint, Illinois test, and a new test, i.e., the crunning test, to assess different skill-related components at once. The use of this combination of tests allows for the assessment of all PF components and can help planning effective training programs and cultivate sporting talent.
Numerical Investigation of Aligned Magnetic Flow Comprising Nanoliquid over a Radial Stretchable Surface with Cattaneo–Christov Heat Flux with Entropy Generation
Authors: Zaib A. , Khan Umair , Khan Ilyas , Seikh Asiful H. , Sherif El-Sayed M.
Published: December 2019

The influence of entropy generation on aligned magnetic flow-including nanoparticles through a convectively heated radial stretched surface in the existence of Cattaneo–Christov heat flux is inspected. The highly nonlinear leading PDE’s via the similar scaling transformation are developed. The resulting system via the bvp4c technique from Matlab is computed. The impacts of rising constraints on the liquid velocity, nanoparticles concentration and temperature profile are argued and showed via portraits and table. In addition, the performance of liquid flow is inspected through the friction factor, the mass and heat transfer rate. With the rise in the thermal relaxation constraint, the thermal boundary layer is appreciably altered. Due to an aligned angle, the velocity of nanoliquid declines, while the concentration and temperature of nanofluid augment. It is also observed that the values of friction factor increase, whereas the values of heat and mass transfer decline due to an aligned angle. Entropy generation profiles developed due to magnetic parameters and the aligned angle. Lastly, a comparative scrutiny is composed via the previous studies which lead to support for our presently developed model.
Percutaneous Emergence of Gnathostoma spinigerum Following Praziquantel Treatment
Authors: Sapp Sarah G. H. , Kaminski Monica , Abdallah Marie , Bishop Henry S. , Fox Mark , Ndubuisi MacKevin , Bradbury Richard S.
Published: December 2019

A Bangladeshi patient with prior travel to Saudi Arabia was hospitalized in the United States for a presumptive liver abscess. Praziquantel was administered following a positive Schistosoma antibody test. Ten days later, a subadult worm migrated to the skin surface and was identified morphologically as Gnathostoma spinigerum. This case highlights the challenges of gnathostomiasis diagnosis, raising questions on potential serologic cross-reactivity and the possible role of praziquantel in stimulating outward migration of Gnathostoma larvae/subadults.
Ecology of West Nile Virus in the Danube Delta, Romania: Phylogeography, Xenosurveillance and Mosquito Host-Feeding Patterns
Authors: Tomazatos Alexandru , Jansen Stephanie , Pfister Stefan , Török Edina , Maranda Iulia , Horváth Cintia , Keresztes Lujza , Spînu Marina , Tannich Egbert , Jöst Hanna , Schmidt-Chanasit Jonas , Cadar Daniel , Lühken Renke
Published: December 2019

The ecology of West Nile virus (WNV) in the Danube Delta Biosphere Reserve (Romania) was investigated by combining studies on the virus genetics, phylogeography, xenosurveillance and host-feeding patterns of mosquitoes. Between 2014 and 2016, 655,667 unfed and 3842 engorged mosquito females were collected from four sampling sites. Blood-fed mosquitoes were negative for WNV-RNA, but two pools of unfed Culex pipiens s.l./torrentium collected in 2014 were tested positive. Our results suggest that Romania experienced at least two separate WNV lineage 2 introductions: from Africa into Danube Delta and from Greece into south-eastern Romania in the 1990s and early 2000s, respectively. The genetic diversity of WNV in Romania is primarily shaped by in situ evolution. WNV-specific antibodies were detected for 19 blood-meals from dogs and horses, but not from birds or humans. The hosts of mosquitoes were dominated by non-human mammals (19 species), followed by human and birds (23 species). Thereby, the catholic host-feeding pattern of Culex pipiens s.l./torrentium with a relatively high proportion of birds indicates the species’ importance as a potential bridge vector. The low virus prevalence in combination with WNV-specific antibodies indicate continuous, but low activity of WNV in the Danube Delta during the study period.
Polyamine Transport Protein PotD Protects Mice against Haemophilus parasuis and Elevates the Secretion of Pro-Inflammatory Cytokines of Macrophage via JNK–MAPK and NF–κB Signal Pathways through TLR4
Authors: Dai Ke , Ma Xiaoyu , Yang Zhen , Chang Yung-Fu , Cao Sanjie , Zhao Qin , Huang Xiaobo , Wu Rui , Huang Yong , Yan Qigui , Han Xinfeng , Ma Xiaoping , Wen Xintian , Wen Yiping
Published: December 2019

The potD gene, belonging to the well-conserved ABC (ATP-binding cassette) transport system potABCD, encodes the bacterial substrate-binding subunit of the polyamine transport system. In this study, we found PotD in Haemophilus (Glaesserella) parasuis could actively stimulate both humoral immune and cellular immune responses and elevate lymphocyte proliferation, thus eliciting a Th1-type immune response in a murine immunity and infection model. Stimulation of Raw 264.7 macrophages with PotD validated that Toll-like receptor 4, rather than 2, participated in the positive transcription and expression of pro-inflammatory cytokines IL–1β, IL–6, and TNF–α using qPCR and ELISA. Blocking signal-regulated JNK–MAPK and RelA(p65) pathways significantly decreased PotD-induced pro-inflammatory cytokine production. Overall, we conclude that vaccination of PotD could induce both humoral and cellular immune responses and provide immunoprotection against H. parasuis challenge. The data also suggest that Glaesserella PotD is a novel pro-inflammatory mediator and induces TLR4-dependent pro-inflammatory activity in Raw 264.7 macrophages through JNK–MAPK and RelA(p65) pathways.
Corrélation entre l'état d'amorphisation et l'hydraulicité du métakaolin
Authors: Murat Michel , Bachiorrini Alessandro
Published: December 2019

Les auteurs présentent les premiers résultats concernant l'hydraulicité du métakaolin préparé par déshydroxylation thermique de différentes kaolinites en réacteurs à lit fixe, à lit brassé (four rotatif) et à lit fluidisé. L'état d'amorphisation du métakaolin, déterminé qualitativement par spectrométrie d'absorption infrarouge, est variable selon les conditions de traitement thermique et l'origine de la kaolinite. Cet état d'amorphisation, qui conditionne a priori la réactivité (hydraulicité) et les propriétés mécaniques des ciments pouzzolaniques activés à la chaux, n'est cependant pas le seul facteur à prendre en considération : en effet, les caractéristiques minéralogiques du kaolin de départ ont une influence très sensible sur la cinétique de formation des hydrates et la nature de ces derniers, donc sur l'évolution des résistances mécaniques.
Applications de la RMN à l'étude de conducteurs d'ions Li+ et Na+ dans les dichalcogénures bidimensionnels substitués
Authors: Abou Ghaloun Omar , Chevalier Patrick , Trichet Luc
Published: December 2019

Des exemples d'applications de la RMN à l'étude de conducteurs cationiques sont donnés dans le cas des phases d'intercalation-substitution AₓMₓT₁₋ₓX₂ (A = Li, Na ; M = In, Y, Cr ; T = Ti, Zr ; X = S, Se). Le couplage quadripolaire apporte des informations sur la symétrie des sites occupés par les cations et sur les limites de phases. Le déplacement de la raie apporte des renseignements sur le degré d'ionisation et sur le changement des propriétés électroniques (transition isolant-métal). Un exemple est donné de la sensibilité de ce déplacement à la présence d'ions paramagnétiques. La mesure du temps de relaxation spin-réseau en fonction de la température apporte des renseignements sur le mouvement local, et permet la détermination de l'énergie d'activation et de la fréquence de saut.
Un modèle de dislocations pour la transition aragonite ↔ calcite
Authors: Gillet Philippe , Madon Michel
Published: December 2019

A dislocation model for aragonite-calcite transition is suggested. A dislocation splitting in the calcite basal plane (0001) and aragonite basal plane (001), whose first partial is dragging a stacking fault, is responsible for the transition (or for the nucleation stage). This mechanism accounts for experimentally observed topotactic relations.
Mémoire de guerre et traumatisme dans le roman contemporain : un style pour l’histoire ?
Authors: Milquet Sophie
Published: December 2019

Cet article interroge la relation entre la matérialité du langage poétique et la tentative d’inscrire la douleur de l’histoire, à travers le cas de la mémoire de guerre dans la fiction contemporaine. Il s’appuie sur une analyse de La canción de Ruth de Marifé Santiago Bolaños (2010), roman espagnol de la transmission de la guerre d’Espagne et de la Shoah. Cette contribution détaille les opportunités de rencontre entre les disciplines historique et littéraire, et en particulier celle que constitue l’approche esthétique. Dans l’analyse du roman, deux phénomènes narratifs sont étudiés plus attentivement, la délinéarisation et la répétition, révélant un régime d’historicité traumatique : le passé «ne passe pas ».
Détecter un « grand domaine » monastique. L’organisation du travail agricole dans les propriétés de Saint-Sauveur de Monte Amiata (VIIIe-Xe siècle)
Authors: Tabarrini Lorenzo
Published: December 2019

Le « régime domanial classique » (manorial system, Villikationsverfassung, sistema curtense), ses caractéristiques et sa diffusion dans l’Europe du haut Moyen Âge ont été intensivement discutés pendant le dernier siècle jusqu’à très récemment. Bien que la question soit encore débattue, il est généralement reconnu que ce modèle d’organisation de la propriété foncière, qui était particulièrement répandu dans les régions entre Seine et Rhin, était principalement caractérisé par la demande de services de travail grâce auxquels (bien qu’en mesures différentes d’un lieu à l’autre) la réserve domaniale était cultivée. Le « système domanial » arriva aussi en Italie. Sur la frontière méridionale du Royaume, dans la région qui est aujourd’hui la Toscane, le monastère bénédictin de Saint-Sauveur de Monte Amiata imposait régulièrement une quantité assez lourde de corvées à quelques-uns de ses tenanciers jusqu’à la fin du ixe siècle. En commençant par la distribution chronologique et les caractéristiques de nos documents, cet article vise à remplir une lacune dans l’historiographie courante par l’analyse du fonctionnement des corvées autour de l’Amiata (ainsi que de leur crise à la veille du Xe siècle), en plaçant les documents de Saint-Sauveur dans le contexte problématique du «système domanial » de l’Italie lombarde et carolingienne.
Cambios y continuidades en el Levante (ca. 1300-900 a.n.e.): Una propuesta de síntesis sociopolítica
Authors: Pfoh Emanuel
Published: December 2019

Entre 1300 y 900 a.n.e., las regiones de Siria y de Palestina experimentaron una serie de disrupciones y reacomodamientos, especialmente en la escena política. Más aún, la opinión historiográfica tradicionalmente aceptada indica que un cambio radical en las estructuras sociopolíticas ocurrió, marcando una transición de organizaciones políticas territoriales a organizaciones “nacionales” o étnicas. La discusión presentada en este trabajo apunta a revisar dicha opinión y a observar una permanencia fundamental, luego de la crisis del siglo XII, de las estructuras jerárquicas basadas en el parentesco y el patronazgo; estructuras sociopolíticas que proporcionaban las pautas básicas en la dinámica interna y externa de los reinos locales. Finalmente, se presenta una hipótesis al respecto de la relevancia de la adscripción y la subordinación políticas en la creación de identidades étnicas en el Levante durante la Edad del Hierro.
Persepsi Bidan Terhadap Kualifikasi Pendidikan Bidan Dalam Undang - Undang No.4 Tahun 2019 Tentang Kebidanan
Authors: Erawati Ambar Dwi , Rinayati Rinayati , Wahyuning Sri
Published: December 2019

Undang – undang kebidanan N0. 4 Tahun 2019 menyebutkan beberapa kriteria bidan berdasarkan kualifikasinya diantaranya; bidan vokasi, bidan akademisi, dan bidan profesi. Adanya kriteria kualifikasi pendidikan bidan dalam UU Kebidanan tentunya mempengaruhi perubahan kewenangan ditiap kualifikasi. Penelitian yang berjudul “Persepsi bidan terhadap perubahan kewenangan dalam rancangan Undang – undang kebidanan” menyebutkan bahwa mayoritas bidan mempunyai persepsi baik terhadap perubahan kewenangan. Tujuan penelitian ini adalah untuk mengetahui persepsi bidan di Wilayah ranting III IBI Kota Semarang terhadap kualifikasi pendidikan Bidan dalam UU Kebidanan. Desain Penelitian adalah studi Deskriptif dengan eknik pengambilan sampel secara insidental pada saat pertemuan IBI di Wilayah ranting III sebanyak  32 bidan.  Hasil Penelitian menunjukkan persepsi setuju terhadap perubahan kualifikasi pendidikan bidan vokasi (81.3%), tidak setuju (18.7%) dan persepsi setuju terhadap pendidikan bidan akademik (71.9%), tidak setuju (28.1%) dan persepsi setuju dengan kualifikasi pendidikan profesi bidan (15.6%) yang tidak (84.4%). Kesimpulan penelitian ini adalah Bidan di wilayah Ranting III IBI Semarang sebagian besar memiliki persepsi setuju terhadap perubahan kualifikasi pendidikan bidan vokasi dan pendidikan bidan akademik dan sebagian besar persepsi yang tidak setuju terkait dengan kualifikasi pendidikan profesi bidan Kata kunci : kebidanan;kualifikasi; pendidikan;undang–undang
Yapay Sinir Ağları ve Regresyon Yöntemleri ile Geri Esneme Tahmini
Authors: KILIÇ Süleyman
Published: December 2019

Geri esneme,
imalat süreçlerinde karşılaşılan problemlerin başında gelmektedir. Geri esneme
işleminin giderilmesinde deneme yanılma gibi maliyetli yöntemler
kullanılmaktadır. Günümüz dünyasında bilgisayar teknolojisinin gelişmesiyle
beraber bütün alanlarda bilgisayar ve bilgisayar programlarının kullanımı
yaygınlaşmıştır. Yapay zekâ teknolojisi ile dışarıdan sisteme bilinen veriler
girilerek, sistemin bilinmeyen durumları tahmin etmesi beklenmektedir. Bu
çalışma kapsamında Yapay Sinir Ağları (YSA) ve Regresyon yöntemi kullanarak
geri esneme tahmini yapılmıştır. Farklı parametrelerin etkisini görebilmek için
farklı YSA modelleri oluşturulmuş ve birbiriyle kıyaslanmıştır. Yapılan çalışmalar
sonucunda YSA modellerinde uygun parametre seçiminin oldukça önemli olduğu
görülmüştür. YSA model sonuçlarının, Regresyon model sonuçlarından daha
başarılı tahminler yaptığı görülmüştür.
CNC Torna Tezgâhlarında Ayna ve Punta Basıncının Yüzey Pürüzlülüğü ve Titreşim Üzerine Etkisinin Taguchi Metodu İle Optimizasyonu
Authors: GÜRBÜZ Hüseyin , BADAY Şehmus
Published: December 2019

Tornalama
işlemlerinde, istenmeyen yüksek değerlerdeki yüzey pürüzlülük ve titreşim
değerlerini gidermek için iş parçaları tezgâha doğru bir şekilde bağlanması
gerekmektedir. Bir iş parçası ayna ve punta arasına uygun bir basınç ile
bağlanmadığında, eksenden kaçık salgılı bir şekilde dönmeye ve bozulmaya neden
olmaktadır. Bu da iş parçasında istenmeyen yüksek değerlerde yüzey pürüzlülük
değerlerine ve titreşimlere neden olur. Bu çalışmanın amacı, AISI 304 paslanmaz
çeliğinin tornalanmasında en düşük yüzey pürüzlülüğü ve titreşim değerlerini
elde etmek için Taguchi metodu kullanılarak en uygun ayna ve punta basıncını
tespit etmektir. İşleme deneylerinde 5 farklı ayna ve punta basıncı ve kesme
parametreleri olarak ise sabit kesme hızı, ilerleme ve kesme derinliği
alınmıştır. Deney tasarımı için Taguchi L25 (5^2) ortogonal dizilimi
kullanılmıştır. En küçük en iyidir yaklaşımına göre sinyal/gürültü oranı
kullanarak yüzey pürüzlülüğü ve titreşim değerleri için en uygun ayna ve punta
basıncı belirlenmiştir. S/N oranlarına göre optimum ve en düşük titreşim
değerlerini veren ayna ve punta basıncı sırasıyla 18 bar ve 5 bar iken, optimum
yüzey pürüzlülük değerlerini veren ayna ve punta basıncı değerleri ise
sırasıyla 18 bar ve 11 bar olarak tespit edilmiştir. Fakat en düşük yüzey
pürüzlülük değeri ise ayna basıncı 18 bar ve punta basıncı 5 barda elde
edilmiştir. Taguchi deney tasarımındaki S/N oranı sonuçlarına göre yüzey
pürüzlülüğü ve titreşim üzerinde ayna basıncının punta basıncından daha önemli
olduğu tespit edilmiştir. Sonuç olarak Taguchi yönteminin faktör tasarımı, ayna
ve punta basıncı parametrelerinin optimizasyonu için basit, sistematik ve
verimli bir yöntem olduğu bulunmuştur.
Çevre Sıcaklığının Dolaşımlı Akışkan Yataklı Kazanın Ekserji Performansı Üzerindeki Etkisi
Authors: YAZICI Mesut , KÖSE Ramazan
Published: December 2019

Sunulan bu çalışmada, Eskişehir’in
Seyitgazi ilçesinde yer alan bir endüstriyel tesisteki 75 t/h buhar kapasiteli
dolaşımlı akışkan yataklı kazanın konvansiyonel ekserji analizi yapılmıştır.
Yapılan analizde; çevre sıcaklığındaki değişimin, kazan ve hava ısıtıcısının
ekserji performansına olan etkisi irdelenmiştir. Bunun için standart ölü hal
koşulu 25℃, 101,325 kPa ve ölçüm değerlerinin ortalaması olarak 17,27℃, 89,4
kPa’ın yanı sıra 30℃, 28℃, 20℃, 15℃ ve 12℃ için hesaplamalar yapılmıştır.
Dolaşımlı akışkan yataklı kazan bölümler halinde incelenmesinden ziyade bir
bütün olarak kabul edilmiştir. Hava ısıtıcısı ise kazandan ayrı olarak
değerlendirilmiştir. Yapılan hesaplamalar sonucunda kazan ve hava ısıtıcısında
gerçekleşen ekserji kayıpları belirlenmiştir. Ayrıca kazan ve hava ısıtıcısının
ekserji verimleri hesaplanarak ekserji performansı ortaya çıkarılmıştır. Bu
çalışma, dolaşımlı akışkan yataklı kazanın ve hava ısıtıcının ekserji performans
kriterlerinin çevre sıcaklığındaki değişimden önemli ölçüde etkilendiğini
göstermiştir.
A self-powered detection of glucose using glucose/air enzymatic fuel cell on a single chip
Authors: ŞAHİN Samet
Published: December 2019

Diabetes is a chronic and metabolic disorder that affects many people's quality of life and is becoming a growing problem. Therefore, monitoring and determining the amount of glucose in the blood is of great importance for the diagnosis of diabetes. In this study, a self-powered glucose determination was developed using glucose/air enzymatic fuel cell (EnFC) on a single chip. The anode of the EnFC is prepared by immobilizing glucose oxidase enzyme on ferrocene-nafion containing multi-walled carbon nanotube modified electrodes; the cathode, on the other hand, was prepared by immobilizing bilirubin oxidase enzyme on acid-treated single-walled carbon nanotube modified electrodes. The prepared anode and cathode were electrochemically characterized using glucose and oxygen substrates respectively. EnFC prepared on a single chip showed a linear response in the range of 0-3 mM glucose concentrations, achieving 32 mV/mM sensitivity and a response time of 30 seconds.