bluuebunny/crossref_metadata_2025 huggingface dataset:
A Study on the Laser-Assisted Machining of Carbon Fiber Reinforced Silicon Carbide
Authors: Erdenechimeg Khulan , Jeong Ho-In , Lee Choon-Man
Published: June 2019

In recent years, as replacements for traditional manufacturing materials, monolithic ceramics and carbon fiber reinforced silicon carbide (C/SiC) ceramic matrix composites have seen significantly increased usage due to their superior characteristics of relatively low density, lightweight, and good high temperature mechanical properties. Demand for difficult-to-cut materials is increasing in a variety of area such as the automotive and aerospace industries, but these materials are inherently difficult to process because of their high hardness and brittleness. When difficult-to-cut materials are processed by conventional machining, tool life and quality are reduced due to the high cutting force and temperatures. Laser-assisted machining (LAM) is a method of cutting a workpiece by preheating with a laser heat source and lowering the strength of the material. LAM has been studied by many researchers, but studies on LAM of carbon–ceramic composites have been carried out by only a few researchers. This paper focuses on deducing the optimal machining parameters in the LAM of C/SiC. In this study, the Taguchi method is used to obtain the major parameters for the analysis of cutting force and surface roughness under various machining conditions. Before machining experiments, finite element analysis is performed to determine the effective depth of the cut. The cutting parameters for the LAM operation are the depth of cut, preheating temperature, feed rate, and spindle speed. The signal to noise (S/N) ratio and variance analysis (ANOVA) of the cutting force and surface roughness are analyzed, and the response optimization method is used to suggest the optimal machining parameters.
Effect of Sn Addition on Microstructure and Corrosion Behavior of As-Extruded Mg–5Zn–4Al Alloy
Authors: Ding Jian , Liu Xin , Wang Yujiang , Huang Wei , Wang Bo , Wei Shicheng , Xia Xingchuan , Liang Yi , Chen Xianhua , Pan Fusheng , Xu Binshi
Published: June 2019

The effect of Sn addition on the microstructure and corrosion behavior of extruded Mg–5Zn–4Al–xSn (0, 0.5, 1, 2, and 3 wt %) alloys was investigated by optical microscopy (OM), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), electrochemical measurements, and immersion tests. Microstructural results showed that the average grain size decreased to some degree and the amount of precipitates increased with the increasing amount of Sn. The extruded Mg–5Zn–4Al–xSn alloy mainly consisted of α-Mg, Mg32(Al,Zn)49, and Mg2Sn phases as the content of Sn was above 1 wt %. Electrochemical measurements indicated that the extruded Mg–5Zn–4Al–1Sn (ZAT541) alloy presented the best corrosion performances, with corrosion potential (Ecorr) and corrosion current density (Icorr) values of −1.3309 V and 6.707 × 10−6 A·cm−2, respectively. Furthermore, the corrosion mechanism of Sn is discussed in detail.
Mechanical Properties of Cast-in Anchor Bolts Manufactured of Reinforcing Tempcore Steel
Authors: Bahleda František , Bujňáková Petra , Koteš Peter , Hasajová Lívia , Nový František
Published: June 2019

The tempcore process is implemented in rolling mills to produce high strength reinforcing steel. Besides being used as reinforcement, rebars are also used as the base material for the manufacturing of anchor bolts. The mechanical properties of reinforcement bars used in Europe are assessed in accordance with Eurocode without the recommendations for cast-in anchor bolts. The material properties of Tempcore rebars are not homogenous over the bar cross section. The European Assessment Document (EAD) for the cast-in anchor bolts does not exactly specify the mechanical properties of the thread part. The aim of these experiments is to show the different mechanical properties of rebars and their thread parts. The experiments were performed on rebars modified by peeling to characterize the reduction of diameter in a thread part. As a possible way to predict mechanical properties in a non-destructive way, the hardness tests were performed. Next, the application of the correlation relationship between hardness and tensile strength has been determined. The paper formulates preliminary recommendations for assessment of the cast-in anchor bolts in practice.
Semi-Supervised Faster RCNN-Based Person Detection and Load Classification for Far Field Video Surveillance
Authors: Wei Haoran , Kehtarnavaz Nasser
Published: June 2019

This paper presents a semi-supervised faster region-based convolutional neural network (SF-RCNN) approach to detect persons and to classify the load carried by them in video data captured from distances several miles away via high-power lens video cameras. For detection, a set of computationally efficient image processing steps are considered to identify moving areas that may contain a person. These areas are then passed onto a faster RCNN classifier whose convolutional layers consist of ResNet50 transfer learning. Frame labels are obtained in a semi-supervised manner for the training of the faster RCNN classifier. For load classification, another convolutional neural network classifier whose convolutional layers consist of GoogleNet transfer learning is used to distinguish a person carrying a bundle from a person carrying a long arm. Despite the challenges associated with the video dataset examined in terms of the low resolution of persons, the presence of heat haze, and the shaking of the camera, it is shown that the developed approach outperforms the faster RCNN approach.
Marine-Derived Natural Lead Compound Disulfide-Linked Dimer Psammaplin A: Biological Activity and Structural Modification
Authors: Jing Qinxue , Hu Xu , Ma Yanzi , Mu Jiahui , Liu Weiwei , Xu Fanxing , Li Zhanlin , Bai Jiao , Hua Huiming , Li Dahong
Published: June 2019

Marine natural products are considered to be valuable resources that are furnished with diverse chemical structures and various bioactivities. To date, there are seven compounds derived from marine natural products which have been approved as therapeutic drugs by the U.S. Food and Drug Administration. Numerous bromotyrosine derivatives have been isolated as a type of marine natural products. Among them, psammaplin A, including the oxime groups and carbon–sulfur bonds, was the first identified symmetrical bromotyrosine-derived disulfide dimer. It has been found to have a broad bioactive spectrum, especially in terms of antimicrobial and antiproliferative activities. The highest potential indole-derived psammaplin A derivative, UVI5008, is used as an epigenetic modulator with multiple enzyme inhibitory activities. Inspired by these reasons, psammaplin A has gradually become a research focus for pharmacologists and chemists. To the best of our knowledge, there is no systematic review about the biological activity and structural modification of psammaplin A. In this review, the pharmacological effects, total synthesis, and synthesized derivatives of psammaplin A are summarized.
Physicians’ Perceptions of Their Patients’ Attitude and Knowledge of Long-Term Oral Anticoagulant Therapy in Bulgaria
Authors: Runev Nikolay , Potpara Tatjana , Naydenov Stefan , Vladimirova Anita , Georgieva Gergana , Manov Emil
Published: June 2019

Background and Objectives: Oral anticoagulation (OAC) is widely used in daily clinical practice worldwide for various indications. We aimed to explore the perception of Bulgarian clinicians about their patients’ attitude and knowledge of long-term OAC, prescribed for atrial fibrillation (AF) and/or known deep venous thrombosis (DVT)/pulmonary embolism (PE). Materials and Methods: We performed a cross-sectional study that involved 226 specialists: 187 (82.7%) cardiologists, 23 (10.2%) neurologists, and 16 (7.1%) vascular surgeons. They filled in a questionnaire, specially designed for our study, answering various questions regarding OAC treatment in their daily clinical practice. Results: The mean prescription rate of OACs in AF patients was 80.3% and in DVT/PE—88.6%. One hundred and eighty-seven (82.7%) of the participants stated they see their patients on OAC at least once per month. According to more than one-third of the inquired clinicians, the patients did not understand well enough the provided information concerning net clinical benefit of OAC treatment. About 68% of the clinicians declared that their patients would prefer a “mutual” approach, discussing with the physician the OAC options and taking together the final decision, whereas according to 43 (19.0%), the patients preferred the physician to take a decision for them. Patients’ OAC treatment had been interrupted at least once within the last year due to a physician’s decision by 178 (78.8%) of the participants and the most common reason was elective surgery. The most influential factors for a patient’s choice of OAC were the need of a specific diet to be kept, intake frequency, and possible adverse reactions. Conclusions: Our results suggest that a clinician’s continuous medical education, shared decision-making, and appropriate local strategies for improved awareness of AF/DVT/PE patients are key factors for improvement of OAC management.
Relationships between Physical Activity, Sleeping Time, and Psychological Distress in Community-Dwelling Elderly Japanese
Authors: Yamamoto Yukio , Suzuki Hiromi , Owari Yutaka , Miyatake Nobuyuki
Published: June 2019

Background and objectives: It is well-known that lifestyle is closely associated with psychological distress in many elderly subjects. However, the effect of intervention with physical activity and/or sleeping on psychological distress has not been fully discussed. The purpose of this cross-sectional study was to investigate the relationships between physical activity, sleeping time, and psychological distress in community-dwelling elderly Japanese subjects. Materials and Methods: A total of 108 elderly Japanese (31 men and 77 women) subjects were enrolled in this cross-sectional study. Psychological distress was evaluated using the K6 questionnaire. Physical activity, including sedentary behavior, was measured using a tri-accelerometer. Sleeping time was evaluated using a self-reported questionnaire. Results: The median of the K6 scores was 1.0 (0–18), and the sedentary behavior (%) and walking time (minutes/day) were 57.2 ± 10.7 and 80.7 (17.9–222.4), respectively. Sleeping time was negatively correlated with psychological distress. In addition, multiple linear regression showed that walking time and sleeping time were important factors for psychological distress, even after adjusting for confounding factors. Conclusions: These results suggest that increased walking time and sleeping time may be beneficial for reducing psychological distress in community-dwelling elderly Japanese subjects.
Enzymes for Detoxification of Various Mycotoxins: Origins and Mechanisms of Catalytic Action
Authors: Lyagin Ilya , Efremenko Elena
Published: June 2019

Mycotoxins are highly dangerous natural compounds produced by various fungi. Enzymatic transformation seems to be the most promising method for detoxification of mycotoxins. This review summarizes current information on enzymes of different classes to convert various mycotoxins. An in-depth analysis of 11 key enzyme mechanisms towards dozens of major mycotoxins was realized. Additionally, molecular docking of mycotoxins to enzymes’ active centers was carried out to clarify some of these catalytic mechanisms. Analyzing protein homologues from various organisms (plants, animals, fungi, and bacteria), the prevalence and availability of natural sources of active biocatalysts with a high practical potential is discussed. The importance of multifunctional enzyme combinations for detoxification of mycotoxins is posed.
Application of Molecularly Imprinted Polymers (MIP) and Magnetic Molecularly Imprinted Polymers (mag-MIP) to Selective Analysis of Quercetin in Flowing Atmospheric-Pressure Afterglow Mass Spectrometry (FAPA-MS) and in Electrospray Ionization Mass Spectrometry (ESI-MS)
Authors: Guć Maria , Schroeder Grzegorz
Published: June 2019

Molecularly imprinted polymer (MIP) and magnetic molecularly imprinted polymer (mag-MIP) for solid extraction and pre-concentration of quercetin have been successfully prepared by thermal polymerization method using quercetin (Q) as a template, acrylamide (AA) as a functional monomer, and ethylene glycol dimethacrylate (EGDMA) as a cross-linking agent. The MIP and mag-MIP were successfully applied in analysis of quercetin by mass spectrometry (MS) methods. To perform ambient plasma ionization experiments, a setup consisting of the heated crucible, a flowing atmospheric-pressure afterglow (FAPA) plasma ion source, and amaZon SL ion trap (Bruker, Bremen, Germany) was used. The heated crucible with programmable temperature allowed desorption of the analytes from MIPs structure which resulted in their direct introduction into the ion stream. The results of Q-MIP/Q-mag-MIP and FAPA-MS measurements were compared with those of the analysis of quercetin by the ESI-MS method without extractions and pre-concentration of analytes on polymers. Limits of detection (LOD) for quercetin solutions in both positive and negative ESI-MS were established at 10−8 M and 10−7 M, respectively. The linearity (R2 = 0.9999) of the proposed analytical procedure for quercetin determination in positive ions was provided in the range between 10−4 M and 10−7 M. Moreover, the same parameters were established for FAPA-MS in positive ions, reaching LOD at 0.005 mg/gMIP and the linearity of the method in the range of 0.015–0.075 mg/gMIP with the correlation coefficient value R2 = 0.9850.
Conserved G-Quadruplexes Regulate the Immediate Early Promoters of Human Alphaherpesviruses
Authors: Frasson Ilaria , Nadai Matteo , Richter Sara N.
Published: June 2019

Human Alphaherpesviruses comprise three members, herpes simplex virus (HSV) 1 and 2 and varicella zoster virus (VZV). These viruses are characterized by a lytic cycle in epithelial cells and latency in the nervous system, with lifelong infections that may periodically reactivate and lead to serious complications, especially in immunocompromised patients. The mechanisms that regulate viral transcription have not been fully elucidated, but the master role of the immediate early (IE) genes has been established. G-quadruplexes are non-canonical nucleic-acid structures that control transcription, replication, and recombination in many organisms including viruses and that represent attractive antiviral targets. In this work, we investigate the presence, conservation, folding and activity of G-quadruplexes in the IE promoters of the Alphaherpesviruses. Our analysis shows that all IE promoters in the genome of HSV-1, HSV-2 and VZV contain fully conserved G-quadruplex forming sequences. These comprise sequences with long loops and bulges, and thus deviating from the classic G-quadruplex motifs. Moreover, their location is both on the leading and lagging strand and in some instances they contain exuberant G-tracts. Biophysical and biological analysis proved that all sequences actually fold into G-quadruplex under physiological conditions and can be further stabilized by the G-quadruplex ligand BRACO-19, with subsequent impairment of viral IE gene transcription in cells. These results help shed light on the control of viral transcription and indicate new viral targets to design drugs that impair the early steps of Alphaherpesviruses. In addition, they validate the significance of G-quadruplexes in the general regulation of viral cycles.
A Novel Drug Design Strategy: An Inspiration from Encaging Tumor by Metallofullerenol Gd@C82(OH)22
Authors: Li Jinxia , Chen Linlin , Yan Liang , Gu Zhanjun , Chen Zhaofang , Zhang Aiping , Zhao Feng
Published: June 2019

Cancer remains a major threat to human health worldwide. Cytotoxicity has imposed restrictions on the conventional cytotoxic drug-based chemotherapy. The rapidly-developing nanomedicine has shown great promise in revolutionizing chemotherapy with improved efficiency and reduced toxicity. Gd@C82(OH)22, a novel endohedral metallofullerenol, was first reported by our research group to suppress tumor growth and metastasis efficiently without obvious toxicity. Gd@C82(OH)22 imprisons tumors by facilitating the formation of surrounding fibrous layers which is different from chemotherapeutics that poison tumor cells. In this review, the authors first reported the antineoplastic activity of metallofullerenol Gd@C82(OH)22 followed by further discussions on its new anti-cancer molecular mechanism—tumor encaging. On this basis, the unparalleled advantages of nanomedicine in the future drug design are discussed. The unique interaction modes of Gd@C82(OH)22 with specific targeted biomolecules may shed light on a new avenue for drug design. Depending on the surface characteristics of target biomolecules, nanomedicine, just like a transformable and dynamic key, can self-assemble into suitable shapes to match several locks for the thermodynamic stability, suggesting the target-tailoring ability of nanomedicine.
Estimation of Nucleon D-Term in QCD
Authors: Anikin Igor V.
Published: June 2019

Using the light-cone sum rules at leading order, we present an approach to perform the preliminary upper estimation for the nucleon gravitational form factor D ( t ) (D-term contribution). Comparison with the experimental data and with the results of different models is discussed.
Utilization of Instruction Materials as Tools for Effective Academic Performance of Students: Implications for Counselling
Authors: Bukoye
Published: June 2019

The study investigated the utilization of instructional materials as tools for effective academic performance of students. Survey research method was used and the study sampled the total number of 100 respondents in five selected secondary schools. A questionnaire constructed by the researcher and re-structured by two experts was used for data collection. The reliability was confirmed with the use of split-half method with 0.63 alpha level of significance got. The questionnaire was stered to the respondents with the assistance of the school heads. The findings revealed inadequate use of instructional materials in most schools and majority of the teachers did not take cognisance of the importance derived from the use of instructional materials while teaching. Those that adopted the utilisation, did not use them appropriately. No wonder the high rate of students’ failure in external examinations. Based on the findings, the professional counsellors in the state should sensitize all heads of schools and teachers through seminars and workshops on the importance and good utilisation of instructional materials. Among other recommendations, the government should endeavour to release enough funds.
CYTOP Fibre Bragg Grating Sensors for Harsh Radiation Environments
Authors: Broadway Christian , Kinet Damien , Theodosiou Antreas , Kalli Kyriacos , Gusarov Andrei , Caucheteur Christophe , Mégret Patrice
Published: June 2019

We present a polymer fibre Bragg grating sensor and its sensitivity to gamma radiation by observing the reflected spectral profile. The Bragg grating is femtosecond inscribed within a perfluorinated CYTOP fibre and the alteration of the Bragg wavelength corresponds to the total radiation dose received. Over a total dose of 41 k Gy, the fibre demonstrates a sensitivity of − 26.2 p m / k Gy and a resolution of 40 Gy. Under active consideration for the instrumentation of nuclear waste repositories, this study gives a better understanding of the effects of gamma radiation upon Bragg gratings in CYTOP fibres.
An Embedded Sensor System for Real-Time Detecting 5-DOF Error Motions of Rotary Stages
Authors: Lou Zhi-Feng , Hao Xiu-Peng , Cai Yin-Di , Lu Tien-Fu , Wang Xiao-Dong , Fan Kuang-Chao
Published: June 2019

The geometric error motions of rotary stages greatly affect the accuracy of constructed machines such as machine tools, measuring instruments, and robots. In this paper, an embedded sensor system for real-time measurement of two radial and three angular error motions of a rotary stage is proposed, which makes use of a rotary encoder with multiple scanning heads to measure the rotational angle and two radial error motions and a miniature autocollimator to measure two tilt angular errors of the axis of rotation. The assembly errors of the grid disc of the encoder and the mirror for autocollimator are also evaluated and compensated. The developed measuring device can be fixed inside the rotary stage. In the experiments, radial error motions of two points on the axis (h = 5 mm and 60 mm) were measured and calibrated with LVDTs, and the data showed that the radial error motions of the axis were less than 20 μm, and the calibration residual errors were less than 2 μm. When intermittent external forces were applied to the stage, the change of the stage’s error motion could also be monitored accurately.
Optical Planar Waveguide Sensor with Integrated Digitally-Printed Light Coupling-in and Readout Elements
Authors: Alamán Jorge , López-Valdeolivas María , Alicante Raquel , Sánchez-Somolinos Carlos
Published: June 2019

Optical planar waveguide sensors, able to detect and process information from the environment in a fast, cost-effective, and remote fashion, are of great interest currently in different application areas including security, metrology, automotive, aerospace, consumer electronics, energy, environment, or health. Integration of networks of these systems together with other optical elements, such as light sources, readout, or detection systems, in a planar waveguide geometry is greatly demanded towards more compact, portable, and versatile sensing platforms. Herein, we report an optical temperature sensor with a planar waveguide architecture integrating inkjet-printed luminescent light coupling-in and readout elements with matched emission and excitation. The first luminescent element, when illuminated with light in its absorption band, emits light that is partially coupled into the propagation modes of the planar waveguide. Remote excitation of this element can be performed without the need for special alignment of the light source. A thermoresponsive liquid crystal-based film regulates the amount of light coupled out from the planar waveguide at the sensing location. The second luminescent element partly absorbs the waveguided light that reaches its location and emits at longer wavelengths, serving as a temperature readout element through luminescence intensity measurements. Overall, the ability of inkjet technology to digitally print luminescent elements demonstrates great potential for the integration and miniaturization of light coupling-in and readout elements in optical planar waveguide sensing platforms.
Implementing RSA for Wireless Sensor Nodes
Authors: Gulen Utku , Alkhodary Abdelrahman , Baktir Selcuk
Published: June 2019

As wireless sensor networks (WSNs) become more widespread, potential attacks against them also increase and applying cryptography becomes inevitable to make secure WSN nodes. WSN nodes typically contain only a constrained microcontroller, such as MSP430, Atmega, etc., and running public key cryptography on these constrained devices is considered a challenge. Since WSN nodes are spread around in the field, the distribution of the shared private key, which is used in a symmetric key cryptographic algorithm for securing communications, is a problem. Thus, it is necessary to use public key cryptography to effectively solve the key distribution problem. The RSA cryptosystem, which requires at least a 1024-bit key, is the most widely used public key cryptographic algorithm. However, its large key size is considered a drawback for resource constrained microcontrollers. On the other hand, RSA allows for extremely fast digital signature generation which may make it desirable in applications where messages transmitted by sensor nodes need to be authenticated. Furthermore, for compatibility with an existing communication infrastructure, it may be desirable to adopt RSA in a WSN setting. With this work, we show that, in spite of its long key size, RSA is applicable for wireless sensor networks when optimized arithmetic, low-level coding and some acceleration algorithms are used. We pick three versions of the MSP430 microcontroller, which is used widely on wireless sensor network nodes, and implement 1024-bit RSA on them. Our implementation achieves 1024-bit RSA encryption and decryption operations on MSP430 in only 0.047 s and 1.14 s, respectively. In order to achieve these timings, we utilize several acceleration techniques, such as the subtractive Karatsuba-Ofman, Montgomery multiplication, operand scanning, Chinese remainder theorem and sliding window method. To the best of our knowledge, our timings for 1024-bit RSA encryption and decryption operations are the fastest reported timings in the literature for the MSP430 microcontroller.
Tightly-Coupled Vehicle Positioning Method at Intersections Aided by UWB
Authors: Gao Huaikun , Li Xu
Published: June 2019

Reliable and precise vehicle positioning is essential for most intelligent transportation applications as well as autonomous driving. Due to satellite signal blocking, it can be challenging to achieve continuous lane-level positioning in GPS-denied environments such as urban canyons and crossroads. In this paper, a positioning strategy utilizing ultra-wide band (UWB) and low-cost onboard sensors is proposed, aimed at tracking vehicles in typical urban scenarios (such as intersections). UWB tech offers the potential of achieving high ranging accuracy through its ability to resolve multipath and penetrate obstacles. However, not line of sight (NLOS) propagation still has a high occurrence in intricate urban intersections and may significantly deteriorate positioning accuracy. Hence, we present an autoregressive integrated moving average (ARIMA) model to first address the NLOS problem. Then, we propose a tightly-coupled multi sensor fusion algorithm, in which the fuzzy calibration logic (FCL) is designed and introduced to adaptively adjust the dependence on each received UWB measurement to effectively mitigate NLOS and multipath interferences. At last, the proposed strategy is evaluated through experiments. Ground test results validate that this low-cost approach has the potential to achieve accurate, reliable and continuous localization, regardless of the GPS working statue.
A Deep Learning Approach for Fusing Sensor Data from Screw Compressors
Authors: Alonso Serafín , Pérez Daniel , Morán Antonio , Fuertes Juan José , Díaz Ignacio , Domínguez Manuel
Published: June 2019

Chillers are commonly used for thermal regulation to maintain indoor comfort in medium and large buildings. However, inefficiencies in this process produce significant losses, and optimization tasks are limited because of accessibility to the system. Data analysis techniques transform measurements coming from several sensors into useful information. Recent deep learning approaches have achieved excellent results in many applications. These techniques can be used for computing new data representations that provide comprehensive information from the device. This allows real-time monitoring, where information can be checked with current working operation to detect any type of anomaly in the process. In this work, a model based on a 1D convolutional neural network is proposed for fusing data in order to predict four different control stages of a screw compressor in a chiller. The evaluation of the method was performed using real data from a chiller in a hospital building. Results show a satisfactory performance and acceptable training time in comparison with other recent methods. In addition, the model is capable of predicting control states of other screw compressors different than the one used in the training. Furthermore, two failure cases are simulated, providing an early alarm detection when a continuous wrong classification is performed by the model.
Dynamic Interface Pressure Monitoring System for the Morphological Pressure Mapping of Intermittent Pneumatic Compression Therapy
Authors: Zhao Shumi , Liu Rong , Fei Chengwei , Guan Dong
Published: June 2019

Intermittent pneumatic compression (IPC) is a proactive compression therapeutic technique in the prophylaxis of deep vein thrombosis, reduction of limb edema, and treatment of chronic venous ulcers. To appropriately detect and analyze biomechanical pressure profiles delivered by IPC in treatment, a dynamic interface pressure monitoring system was developed to visualize and quantify morphological pressure mapping in the spatial and temporal domains in real time. The system comprises matrix soft sensors, a smart IPC device, a monitoring and analysis software, and a display unit. The developed soft sensor fabricated by an advanced screen printing technology was used to detect intermitted pressure by an IPC device. The pneumatic pressure signals inside the bladders of the IPC were also transiently collected by a data acquisition system and then transmitted to the computer through Bluetooth. The experimental results reveal that the developed pressure monitoring system can perform the real-time detection of dynamic pressures by IPC and display the morphological pressure mapping multi-dimensionally. This new system provides a novel modality to assist in the effective evaluation of proactive compression therapy in practice. The study results contribute to understanding the working mechanisms of IPC and improving its functional design based on intuitive biomechanical characteristics of compression delivery profiles.
Differences between Elite and Semi-Elite Australian Football Conceptualised through the Lens of Ecological Dynamics
Authors: Woods Carl T. , Jarvis James , McKeown Ian
Published: June 2019

This study explored the differences in match play between elite and semi-elite Australian football (AF) conceptualised through the lens of ecological dynamics. We sampled naturalistic constraints from match play across two AF competitions (elite and semi-elite) and heuristically classified them into task, environmental and individual classes. Data was extracted from 22 Australian Football League (AFL) games, and 18 semi-elite AF games, with a total of six constraints being sampled from each game. Match play within the AFL generated a greater percent of total disposals in general play within a processing time of 0–1s (d = 1.24 (0.64–1.80)), a greater opposition density surrounding the ball carrier (d = 0.82 (0.26–1.37)), and more disposals being performed while running (dynamic; d = 0.89 (0.33–1.45)). This data highlights differences with regards to the informational sources available to players across both competition standards to inform their movement choices. Specifically, a greater proportion of disposals within the AFL appear to be shaped by pronounced temporal and spatial constraints relative to a semi-elite competition. Coaches are encouraged to consider these results when developing representative training activities for both AFL and prospective AFL players.
The Evolution of China’s International Aviation Markets from a Policy Perspective on Air Passenger Flows
Authors: Wang Jiaoe , Yang Haoran , Wang Han
Published: June 2019

China’s international air transportation has experienced tremendous growth and major reforms over the past two decades. While there has been a considerable discussion on the evolution of China’s domestic aviation market, studies on China’s international aviation markets have been limited. This paper first describes the historical development of China’s international aviation market and then, based on actual origin/destination (O/D) passenger flow data, explores the relevant evolution of China’s international air networks from the perspectives of the spatial distribution of international air networks and clustering characteristics of international air passengers. The development of China’s international aviation market can be attributable to the deregulation process in China’s aviation market and a broad “opening up” strategy in the global forum after 1990. Due to China’s proximity to East Asia and Southeast Asia, China’s international air networks show an obvious clustering pattern for short and medium-haul travel in Asia. In addition, average international air travel distance, institutional and policy changes, and increasing foreign trade and foreign tourism are crucial for the expansion of China’s international air networks.
Neuroeconomics Meets Aquaponics: An Eye-tracking Pilot Study on Perception of Information about Aquaponics
Authors: Schröter Iris , Mergenthaler Marcus
Published: June 2019

Aquaponics is an innovative food production method that combines the production of aquatic organisms with plant production. This can have environmental advantages such as reducing land conversion and resource input and waste output through nutrient cycling. To support the dissemination of aquaponics, key stakeholders need to be appropriately informed about this production method, an aspect that has received little attention so far. In this pilot study, visual perception of information about aquaponics was explored using eye tracking combined with a questionnaire. The results show that people distinguish between aquaponics variants when evaluating aquaponics. A production system with a more natural appearance is preferred. Allocation of visual attention is linked to the specific information content and to the assessment of the naturalness of aquaponics production. The results of the present study could form a basis for further research, not only to make information about food production systems more appropriate but also to develop food production systems in a way that people become more aware of the sustainability aspects of production methods and its products.
‘Between East and West’: Socialist Modernism as the Official Paradigm of Serbian Art Music in the Socialist Federal Republic of Yugoslavia
Authors: JANKOVIĆ-BEGUŠ Jelena
Published: June 2019

In this paper I discuss the notion of
‘socialist modernism’ and argue for its introduction into Serbian music history
and musicology as an appropriate label for a vast number of works composed in
the seventh and eighth decades of the 20th Century. The term is borrowed from
Serbian art theory, where it was introduced by Ješa Denegri, who defined
‘socialist modernism’ as a further development of the notion of ‘socialist
aestheticism’, which was the first sign of distancing from the ‘socialist
realism’ as the dominant aesthetic position in the years immediately after the
end of the WWII. While both terms have been widely used to discuss the visual
arts and architecture (e. g. Miško Šuvaković), they have not been applied to
the study of Serbian and Yugoslav music history. It is my goal to analyse the
main facets of ‘socialist modernism’ and to compare this notion to other
prominent terms, which are commonly used to describe the art music production
of the majority of Serbian composers in the given period, notably to ‘moderated
modernism’ and ‘neoclassicism.’Denegri used the notion of ‘socialist
modernism’ to point to the specific position of the Socialist Federal Republic
of Yugoslavia ‘between East and West’ during the Cold War. He defined it as a
“unique formation that emerged at the crossroads of the features of Eastern and
Western cultural models.” Similar tendencies can also be observed in Serbian
art music since the late 1950s, with an increasing desire to ‘catch up’ with
the dominant currents of European musical (high) modernism.

As a paradigmatic example of this stylistic
approach in art music of the 1960s and 1970s, I discuss the poetics of
Aleksandar Obradović (1927–2001), one of the most prominent Yugoslav (Serbian)
composers of the period, whose artistic profile vividly illustrates the
currents of political developments and changes in Yugoslav art in the second
half of the 20th Century.
Shift and Transformation in Salento: Investigating Change in the Polyphonic Structure and Performance Practice of Canti Polivocali in Southern Puglia
Authors: MORELLO Mario
Published: June 2019

This paper will focus on documenting change
and transformation of polyphonic singing in the Salento region of lower Puglia
(southern Italy), based on a comparative analysis of early field recordings and
recently collected materials. Cantipolivocali (“multi-voiced songs”), the
repertoire of vocal polyphony distinct to the Salento region, was once widely
practiced throughout the region with subregional musical dialects and a rich
repertory of local variants. This rich musical activity was captured in early
field recordings by the first major wave of researchers in the field, notably
between the mid-1950s to late 1960s by ethnomusicologists Diego Carpitella,
Alan Lomax, Gianni Bosio, and Clara Longhini. After mass emigration and
significant changes in traditional music’s positioning in contemporary Italian
culture, the tradition of this singing in Salento has shifted considerably in
both its polyphonic structure and how it is situated in cultural spaces. By
comparing recordings of the aforementioned early collections with field
recordings recently collected by the author through analysis, this paper will
aim to document these changes and identify the significant transformations of
cantipolivocali in Salento.
Controle do pulgão da erva-doce Hyadaphis foeniculi e seletividade em abelhas Apis mellifera
Authors: Reinaldo Haron Salvador , Oliveira Robério de , Souza Mileny dos Santos de , Nascimento Izabela Nunes do , Nascimento Júnior José Luiz do , Batista Jacinto de Luna
Published: June 2019

A cultura da erva-doce Foeniculum vulgare tem grande importância no Nordeste brasileiro. O principal problema fitossanitário dessa cultura é o pulgão Hyadaphis foeniculi, que tem causado danos consideráveis, levando a aplicação de inseticidas. O uso de desses produtos, além de não recomendados para a cultura provoca redução de insetos benéficos, os agentes de controle natural e as abelhas, que formam um grupo muito diverso e diferente quanto à vulnerabilidade a exposição aos inseticidas. Considerando estes aspectos, esse trabalho teve como objetivo avaliar produtos eficientes no controle do pulgão da erva-doce H. foeniculi e a seletividade a abelha Apis mellifera. As abelhas e os pulgões foram coletadas em campo e submetidos a testes usando os seguintes produtos: detergente mais óleo, Prev-am e Provado® 200 SC, usando-se cinco repetições cada tratamento. Os dados de mortalidade foram submetidos às fórmulas de correção da mortalidade, Sun-Shepard e Abbott. Os tratamentos Óleo + Detergente, Prev-am e Provado® 200SC, controlaram eficientemente os pulgões chegando a índices de 100% de mortalidade, no entanto esses produtos não são seletivos para a espécie de abelha A. mellifera.
Mapa de erosão do estado de São Paulo
Authors: Facciolla KERTZMAN Fernando , Oliveira Antonio Manoel S. , Salomão Fernando Ximenes T. , Faria Gouveia Maria Isabel
Published: June 2019

O objetivo principal deste trabalho é apresentar a metodologia utilizada na elaboração do mapa de suscetibilidade à erosão do Estado de São Paulo, em escala 1 :250.000, um dos produtos do Projeto "Orientações para o combate à erosão no Estado de São Paulo", que está sendo desenvolvido sob coordenação do Departamento de Águas e Energia Elétrica - DAEE e Instituto de Pesquisas Tecnológicas do Estado de São Paulo - IPT, com cooperação técnica do Instituto Agronômico de Campinas - IAC e Instituto de Pesquisas Espaciais - INPE. O mapa-síntese de erosão do Estado de São Paulo, em fase de conclusão, destaca áreas com diferentes comportamentos erosivos, tendo em vista as potencialidades dos terrenos à produção de sedimentos e conseqüente assoreamento dos corpos d' água, ou seja, o impacto da erosão nos recursos hídricos superficiais.
Cartografia Geotécnica da região de Mogi-Guaçu, São Paulo
Authors: De Mio Giuliano , Gandolfi Nilson
Published: June 2019

A Cartografia Geotécnica é ferramenta básica em qualquer trabalho de planejamento da ocupação. Apresenta utilização ainda restrita devido à sua pouca divulgação. Neste trabalho é apresentada a Cartografia Geotécnica da Quadrícula de Mogi-Guaçu, com os mapas do substrato rochoso e de materiais de cobertura, e a avaliação geotécnica realizada através deuma tabela de propriedades geotécnicas referenciada ao mapa de materiais de cobertura.
Authors: Asyary Melfa Siti
Published: June 2019

People's diet is far from balanced nutrition messages. Based on the results of riskesdas 2010, the proportion of population 10 years less consumption of vegetables and fruits in Indonesia 93.6%. Based on the monitoring of Nutritional Status of West Java 2014, the prevalence of lean and fat in adolescents in Bandung is still above the average of West Java. A country needs balanced nutrition guidelines and needs to be socialized in order to serve as a guideline for eating the community. One visualization of the balanced nutrition message is 'Piring Makanku' which shows the food and beverage serving at every meal. The purpose of this study was to determine the effect of nutritional counseling using food model 'Piring Makanku' to the behavior of balanced food consumption in adolescents. This research will be conducted in SMP Negeri 2 Bandung. The method used is one group pre-test post-test. The sample was chosen by purposive sampling and got the minimum sample size of 32 people. The average score of the behavior of balanced food consumption before the intervention was 7.81 while the score of food consumption behavior was balanced after the intervention was 10.53. Based on statistical test, there is influence of giving counseling using food model 'My Plates' to the behavior of balanced food consumption in adolescents with p <0.001. Food model 'Piring Makanku' is one of the media that influence the behavior of balanced food consumption in adolescents.
The Biology, Ecology and Medicine Faculty of Dnipropetrovsk National University after Oles’ Gonchar
Authors: Pakhomov Olexandr
Published: June 2019

The historical rewiev of Biology, Ecology and Medicine Faculty is presented. The Faculty of Biology, Ecology and Medicine has 7 Departments, Aquarium complex, Zoological Museum, Vivarium and Herbarium. It works in cooperation with the Research Institute of Biology, Botanical Garden, O. L. Bel’gard International Biosphere Station, and Biological Station of DNU and forms the regional Centre of Science, Education and Culture in the field of Biology, Ecology and Nature Conservation in Central Ukraine. The Faculty proposes courses in the following specialities: Biology, Zoology, Botany, Microbiology and Virology, Biochemistry, Physiology, Ecology, Environmental Protection and Balanced Nature Management. All of them have the highest IV level of accreditation. Students get a pedagogical education.
Effects of cultivation methods on some soil biological parameters of a meadow chernozem soil (Vertisols)
Authors: Oláh Zsuposné Ágnes
Published: June 2019

The effect of extended drought conditions on soil, the unfavourable cultivation technologies and the application of chemicals have been enhancing the processes of physical and biological soil degradation, so the fertility of soil is gradually declining. The effects of two cultivation methods – traditional ploughing (TP) and conservation tillage (CT) – on the biological activity of a meadowchernozem soil were examined in a long term experiment. Different parameters of the biological activity of soil were determined. These arethe numbers of total bacteria, microscopic fungi, aerobic cellulose decomposing bacteria, as well as the activities of some important soilenzymes and CO2 production.Conservation tillage seemed to be a more favourable cultivation method for the majority of microorganisms, the activities of urease anddehydrogenase enzymes and CO2 production, compared to the traditional ploughing system. These parameters increased significantly,especially in the upper layer of conservation tillage plots. Concerning the plant cultures, the majority of microbiological parameters werehigher in the soil of vetch (Vicia sativa L.) depending on the cultivation methods, so involving the pulses to the crop-rotation seems to bevery important in this soil type.According to the ninth year’s results, the importance of conservation tillage as a means of protecting the soil biological activity in meadowchernozem (Vertisols) can be established; it was proven by microbiological investigations.
The phosphate state and biochemical mobilization of phosphorus compounds in arboreal plants’ soils
Authors: Artyushenko Olexandr , Dziuba Oksana
Published: June 2019

Some indices of the phosphoric fractions of primery degraded soils, which are formed separate areas of technogenic landscapes, on a spoil-bank of iron-ore mine in the near of Kryvyi Rig, under act of lignosa, which are used for biological recultivation of degraded soils are investigated. Maintenance of mineral phosphates and features of organic phosphorus accumulation are set in soil under arboreal planting. Nutrient supply of plants is enhanced by mobile phosphates and their dynamics during vegetation period. Activity of alkaline and acid phosphatase enzymes are concerned also. On the basis of the soil enzymes activity information it is stated, that under the 35-years-old plantage of Robinia pseudoacacia L. the biochemical mineralization of organic phosphorus compounds passes considerably more actively than under Pinus pallasiana D.Don.
Influence of phytophagous mammals environment-forming activity on the soil invertase fermentative activity in conditions of mining impact region
Authors: Kirienko Svetlana , Didur Oleg , Loza Iryna , Pakhomov Olexandr
Published: June 2019

Excretorial and fossorial activity of mammals is an important part of environment-forming activity. Mammals have influences on important biogeocenotic processes, especially on the soil processes. Determination the maintenance of soil invertase as one of diagnostic description the ecological state allowed defining limits of oscillation index in dump areas and in clean (control) native areas. The obtained results of the investigation indicate the soil depth, duration of experiment and type of area influence on soil invertase activity with the high statistical level of significance. Positive influence is revealed on invertase activity changing on dump areas, where an active excretorial and fossorial activity of phytophagous mammals was observed.
Multilayer
3D
Chirality and Its Synthetic Assembly
Authors: Wu Guanzhao , Liu Yangxue , Yang Zhen , Katakam Nandakumar , Rouh Hossein , Ahmed Sultan , Unruh Daniel , Surowiec Kazimierz , Li Guigen
Published: June 2019

3D
chirality of sandwich type of organic molecules has been discovered. The key element of this chirality is characterized by three layers of structures that are arranged nearly in parallel fashion with one on top and one down from the center plane. Individual enantiomers of these molecules have been fully characterized by spectroscopies with their enantiomeric purity measured by chiral HPLC. The absolute configuration was unambiguously assigned by X-ray diffraction analysis. This is the first multilayer
3D
chirality reported and is anticipated to lead to a new research area of asymmetric synthesis and catalysis and to have a broad impact on chemical, medicinal, and material sciences in future.