bluuebunny/crossref_metadata_2025 huggingface dataset:
NEUROINNOVATIONS: DRIVING CREATIVITY IN ORGANIZATIONS THROUGH THE APPLICATIONS OF THE HUMAN NERVOUS SYSTEM AND THE BRAIN
Authors: Tanmanee Kwanhathai , Kirner Eva , Cerquera Daniel
Published: February 2019

In today’s business world characterized by high level of uncertainty and change, the success and perhaps the survival of organizations rest on their ability to think and act creatively. Stimulating employee creativity, thus, inevitably becomes one of the top priorities for most organizations, no matter large or small. However, driving creativity is not an easy task, especially in an organizational context where creativity is influenced by variables operating at different levels. herefore, what organizations really need are reliable, scientifically proven mechanisms and tools that would effectively boost the creativity of their employee. This is what the present study promises to deliver. To achieve this, the study analyzed and integrated current diverse and fragmented findings from organizational creativity research field, as well as insights from the field of neuroscience, so that a more complete understanding on how to drive creativity can be obtained. Understanding creative behaviors at their very neural substrates provide a great opportunity to draw more accurate conclusions. Therefore, the strategies this study ought to provide are not ones that are general, but brain-targeted ones. To test the stimuli identified from such analysis, experiments with 54 participants for individual variables, and 18 groups for group variables were carried out. In addition, two experts from IBM were being interviewed for their views on how IBM boosts creativity of their employees. Based on the experiments and interview results, four major recommendations were implicated. First, organizations should look for individuals who are open to experiences, are extraverted, and are not conscientious to work on the creative tasks. Second, organizations should encourage employees to individually work on their idea generation activity. Third, for group creative problem solving, change in membership should be encouraged as opposed to static membership. Last but not least, the cultures and climates inside the organizations should be ones that encourage transformational leadership and collaboration among employees. Also, a relaxed atmosphere does not necessary drive employees to be more creative. However, the flexibility, the autonomy provided to employees tends to do so.
THE EFFECT OF MERGERS AND ACQUISITIONS ON ABNORMAL RETURN: CASE STUDY OF 46 LISTED COMPANIES IN INDONESIA STOCK EX- CHANGE (IDX) FROM 2010-2016
Authors: Fadlitama Luthfie , Adawiyah Wardatul
Published: February 2019

This research aims to analyze whether there is a significant difference of abnormal returns due to the occurrence of mergers and acquisitions activity in which affect the wealth value of the shareholders and to determine the return of the shareholders after mergers and acquisition proportion is announced. In order to calculate the abnormal returns, this research uses two different approach; market model and market adjusted modelEvent study methodology is used to determine the abnormal return using market model and market adjusted model over period 10 days before and 10 days after consummation of mergers and acquisitions. The result of this study shows that significant abnormal returns before and after mergers and acquisitions activity is not exist (accept H0). Furthermore, when proportion (mergers and acquisitions of more than 50% and less than 50% of target interests) is used to analyze the return for shareholders, theresults show that mergers and acquisitions of more than 50% target interests generate positive return for shareholders of acquiring and target firms (reject H0). In mergers and acquisitions of less than 50% only accrue positive return for shareholders of acquiring firms (reject H0) while shareholders of target firms suffer negative return (accept H0)
CONTROL AND ACCOUNTING INFORMATION SYSTEM USING COSO ERM IN PT. EMII
Authors: Syahputra Faiz , Suardi Imelda
Published: February 2019

The use of accounting information system effects the implementation of internal control. COSO ERM method is now the most widely accepted internal control framework in the world and used as the basis for this research. The case study was conducted in a medical equipment distributor that has implemented accounting information system for their financial reporting. The focus is on its process, threats, and controls using interview and questionnaire to the employess. This research proposed new procedures for both revenue and expenditure cycles and suggested activites for better internal control. The result showed that the company has implemented good internal control in almost all COSO ERM measurement, except for information and communication aspect.
THE RURAL DEVELOPMENT POLICY IN GERMANY: A REVIEW ARTICLE
Authors: Wiranthi Puspi Eko
Published: February 2019

Germany as one of the largest agricultural producers in the European Union has faced several problems in the rural areas. Therefore, the government has set out a rural development policy in the Common Agricultural Policy (CAP) which covers four axes, namely improving the competitiveness of the agricultural and forestry sectors (axis 1), improving the environment and the countryside (axis 2), improving the quality of life in rural areas and encouraging diversification of the rural economy (axis 3), and building local capacity for employment and diversification (axis 4). Therefore, in this study, we give an overview of past and present reform of rural development policy, including the objectives, programmes, measures and fund allocations and analyze how governments determine different priorities on the axis among the regions. From the review, it is found that from the implementation of the rural development policy 2007-2013, Germanygives priority to the axis 2 with the greatest percentage of 42.71 percent (improving the environment and countryside), followed by the axis 1 with a percentage of 26.60 percent (improving the competitiveness of the agricultural and forestry sectors), then axis 3 with the percentage of 23.06 percent, and the last axis 4 with the percentage of 6.31 percent (building local capacity for employment and diversification - Leader).
Screening Corn Hybrids for Soil Waterlogging Tolerance at an Early Growth Stage
Authors: Kaur Gurpreet , Zurweller Brendan , Motavalli Peter , Nelson Kelly
Published: February 2019

Identification of corn hybrids that can withstand wet soil conditions is one approach to prevent crop production losses from abiotic stress caused by excessive soil moisture during early spring season in the midwestern United States. A greenhouse pot experiment was conducted in 2013 to screen and identify corn hybrids tolerant or susceptible to soil waterlogging at the V2 growth stage. The main plots included waterlogging durations: no waterlogging; 14-day waterlogging and then allowing recovery from waterlogging stress for 7 days; and 21-day waterlogging. Subplots included eight commercial corn hybrids. The shoot and root biomass, plant height, stomatal conductance, and chlorophyll meter readings were decreased due to waterlogging for 14 days and 21 days. Hybrid #2 appeared to be more tolerant to waterlogging as evidenced by greater growth and higher stomatal conductance and chlorophyll meter readings on newer leaves under waterlogged conditions. Hybrid #5 and Hybrid #8 were more susceptible to waterlogging than other hybrids. Large variability occurred among corn hybrids in response to soil waterlogging durations. Beneficial effects of improved soil conditions after excess water removal from 14-day waterlogged pots were not seen in this experiment, probably due to the short recovery time period between the excess water removal and experiment termination.
Housing and Management Practices on 33 Pullet Farms in Canada
Authors: van Staaveren Nienke , Decina Caitlin , Baes Christine F. , Widowski Tina M. , Berke Olaf , Harlander-Matauschek Alexandra
Published: February 2019

Although Canada is one of the first to provide guidelines on pullet rearing in a new Code of Practice which came into effect in March 2017, little information is available about the housing and management of pullets on Canadian farms. We surveyed 99 pullet farmers and received useable responses from 33 pullet farmers (33.3% response rate) who took part in the Start Clean-Stay Clean™ program through their provincial egg boards across Canada during October–December 2017 as part of a larger study. Most flocks were housed in conventional cage systems (42.4%), followed by single-tier (33.3%) and multi-tier systems (24.2%). Flocks ranged from 1–19 weeks of age (average: 10.5 weeks of age) and were white- (58.1%) or brown-feathered (41.9%). In general, non-cage farmers met the new requirements set out in the Code of Practice for space, perches and litter provision during pullet rearing during this transitional period. Conventional caged flocks did not have opportunities for perching and foraging, but developing new methods to provide pullets with opportunities to perch and forage will become more important as the laying hen housing system transition from conventional cages to furnished cage and non-cage housing systems in Canada progresses. Additionally, clear litter management recommendations for farmers to ensure good litter quality are needed for non-cage housing systems.
Experimental Investigation of the Adsorption Characteristics of Mixed Coal and Variations of Specific Surface Areas before and after CH4 Adsorption
Authors: Zhao Pengxiang , Liu Hui , Li Shugang , Lin Haifei , Jia Yongyong , Yan Min , Yuan Meiqi , Lin Jia
Published: February 2019

Tectonic coal is a kind of soft coal that is generated during tectonic movement. Gas outbursts usually occur in seams containing both virgin coal and tectonic coal. To reveal the adsorption characteristics of this type of coal seam (containing both virgin coal and tectonic coal), both tectonic coal and virgin coal were collected from the same longwall face and a series of laboratory tests were conducted, including coal sorption tests and pore specific surface measurements. Both the tectonic coal and virgin coal were crushed into coal powder (0.18–0.25 mm) for the coal sorption tests. In these laboratory tests, different mass ratios between tectonic coal and virgin coal were tested. We found that with the increase of the percentage of tectonic coal, the adsorption volume showed a rising trend, reached its maximum value, and then decreased. The specific surface areas of the mixed coal samples had the same evolution trends as those of the adsorption volume. From the laboratory tests, we found that when the mass ratio of virgin coal to tectonic coal was 1:1, both the adsorption volume and the specific surface areas reached their maximum values. Due to the percentage variation of the tectonic coal in the panel with the advancement of the longwall face, when the tectonic coal accounted for 50% of the total coal, the gas content would rise. Thus, proper measures should be adopted for outburst hazards control. The mathematical model between the change of specific surface area and the stress and strain of pore expansion before and after gas adsorption was established, and the relationship between the change of pore structure and gas emission before and after gas adsorption was obtained. It provides a theoretical basis for further research on coal and gas outburst mechanisms.
Multi-Searcher Optimization for the Optimal Energy Dispatch of Combined Heat and Power-Thermal-Wind-Photovoltaic Systems
Authors: Tang Jianlin , Yu Tao , Zhang Xiaoshun , Li Zhuohuan , Chen Junbin
Published: February 2019

This paper proposes a novel multi-searcher optimization (MSO) algorithm for the optimal energy dispatch (OED) of combined heat and power-thermal-wind-photovoltaic systems. The available power of wind turbine (WT) units and photovoltaic (PV) units is approximated with the probability density functions of wind speed and solar irradiance, respectively. The chaos theory is used to implement a wide global search, which can effectively avoid a low-quality local optimum for OED. Besides, a double-layer searcher is designed to guarantee fast convergence to a high-quality optimal solution. Finally, three benchmark functions and an energy system with 27 units are used for testing the performance of the MSO compared with nine other frequently used heuristic algorithms. The simulation results demonstrate that the proposed technique not only can solve the highly nonlinear, non-smooth, and non-convex OED problem of an energy system, but can also achieve a superior performance for the convergence speed and the optimum quality.
Eccentricity-Based Topological Invariants of Some Chemical Graphs
Authors: Idrees Nazeran , Saif Muhammad Jawwad , Anwar Tehmina
Published: February 2019

Topological index is an invariant of molecular graphs which correlates the structure with different physical and chemical invariants of the compound like boiling point, chemical reactivity, stability, Kovat’s constant etc. Eccentricity-based topological indices, like eccentric connectivity index, connective eccentric index, first Zagreb eccentricity index, and second Zagreb eccentricity index were analyzed and computed for families of Dutch windmill graphs and circulant graphs.
Note on Limit-Periodic Solutions of the Difference Equation xt + 1 − [h(xt) + λ]xt = rt, λ > 1
Authors: Andres Jan , Pennequin Denis
Published: February 2019

As a nontrivial application of the abstract theorem developed in our recent paper titled “Limit-periodic solutions of difference and differential systems without global Lipschitzianity restricitions”, the existence of limit-periodic solutions of the difference equation from the title is proved, both in the scalar as well as vector cases. The nonlinearity h is not necessarily globally Lipschitzian. Several simple illustrative examples are supplied.
3-Lie Superalgebras Induced by Lie Superalgebras
Authors: Abramov Viktor
Published: February 2019

We show that given a Lie superalgebra and an element of its dual space, one can construct the 3-Lie superalgebra. We apply this approach to Lie superalgebra of ( m , n ) -block matrices taking a supertrace of a matrix as the element of dual space. Then we also apply this approach to commutative superalgebra and the Lie superalgebra of its derivations to construct 3-Lie superalgebra. The graded Lie brackets are constructed by means of a derivation and involution of commutative superalgebra, and we use them to construct 3-Lie superalgebras.
Ear Reconstruction Simulation: From Handcrafting to 3D Printing
Authors: Mussi Elisa , Furferi Rocco , Volpe Yary , Facchini Flavio , McGreevy Kathleen S. , Uccheddu Francesca
Published: February 2019

Microtia is a congenital malformation affecting one in 5000 individuals and is characterized by physical deformity or absence of the outer ear. Nowadays, surgical reconstruction with autologous tissue is the most common clinical practice. The procedure requires a high level of manual and artistic techniques of a surgeon in carving and sculpting of harvested costal cartilage of the patient to recreate an auricular framework to insert within a skin pocket obtained at the malformed ear region. The aesthetic outcomes of the surgery are highly dependent on the experience of the surgeon performing the surgery. For this reason, surgeons need simulators to acquire adequate technical skills out of the surgery room without compromising the aesthetic appearance of the patient. The current paper aims to describe and analyze the different materials and methods adopted during the history of autologous ear reconstruction (AER) simulation to train surgeons by practice on geometrically and mechanically accurate physical replicas. Recent advances in 3D modelling software and manufacturing technologies to increase the effectiveness of AER simulators are particularly described to provide more recent outcomes.
Fabrication of the Hierarchical HZSM-5 Membrane with Tunable Mesoporosity for Catalytic Cracking of n-Dodecane
Authors: Diao Zhenheng , Cheng Lushi , Hou Xu , Rong Di , Lu Yanli , Yue Wenda , Sun De
Published: February 2019

Hierarchical HZSM-5 membranes were prepared on the inner wall of stainless steel tubes, using amphiphilic organosilane (TPOAC) and mesitylene (TMB) as a meso-porogen and a swelling agent, respectively. The mesoporosity of the HZSM-5 membranes were tailored via formulating the TPOAC/Tetraethylorthosilicate (TPOAC/TEOS) ratio and TMB/TPOAC ratio, in synthesis gel, and the prepared membranes were systematically characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), N2 adsorption–desorption, N2 permeation, inductively coupled plasma (ICP), in situ fourier transform infrared (FT-IR), ammonia temperature-programmed desorption (NH3-TPD), etc. It was found that the increase of the TPOAC/TEOS ratio promoted a specific surface area and diffusivity of the HZSM-5 membranes, as well as decreased acidity; the increase of the TMB/TPOAC ratios led to an enlargement of the mesopore size and diffusivity of the membranes, but with constant acid properties. The catalytic performance of the prepared HZSM-5 membranes was tested using the catalytic cracking of supercritical n-dodecane (500 °C, 4 MPa) as a model reaction. The hierarchical membrane with the TPOAC/TEOS ratio of 0.1 and TMB/TPOAC ratio of 2, exhibited superior catalytic performances with the highest activity of up to 13% improvement and the lowest deactivation rate (nearly a half), compared with the microporous HZSM-5 membrane, due to the benefits of suitable acidity, together with enhanced diffusivity of n-dodecane and cracking products.
Thin Film Fabrication and Characterization of Layered Rock Salt LiCoO2 on Quartz Glass Spray-Coated with an Aqueous Ammonia Solution Involving Metal Acetates
Authors: Hishimone Philipus N. , Watarai Kenta , Nagai Hiroki , Sato Mitsunobu
Published: February 2019

A LiCoO2 thin film on a quartz glass substrate was fabricated by a wet process involving heat treatment of a precursor film spray-coated with an aqueous ammonia solution containing LiCH3COO and Co(CH3COO)2. The precursor film formed onto the substrate at 180 °C in air, and was heat treated at 500 °C in air for 0.5 h. The obtained film was spin-coated further with an ethanol-based precursor solution containing identical metal acetates, and heat treated at 500 °C in air for 0.5 h. The X-ray diffraction pattern of the resultant film showed only peaks assignable to the layered-rock-salt LiCoO2. Raman spectroscopy measurements revealed vibrational modes assignable to layered rock salt LiCoO2, with minor content of less than 5 mol% of spinel-type Co3O4. The field emission scanning electron microscopy images indicated that the resultant film was 0.21 μm thick, had no voids, and was a combination of small rounded grains measuring 18 nm in diameter and hexagonal grains larger than 0.2 μm in length. The Hall effect measurements indicated that the resultant thin film was a p-type semiconductor with electrical resistivity of 35(2) Ω·cm and a carrier concentration and carrier mobility of 8(2) × 1016 cm−3 and 2(1) cm2·V−1·s−1, respectively.
Thin Film Flow of Micropolar Fluid in a Permeable Medium
Authors: Ali Vakkar , Gul Taza , Afridi Shakeela , Ali Farhad , Alharbi Sayer Obaid , Khan Ilyas
Published: February 2019

The thin film flow of micropolar fluid in a porous medium under the influence of thermophoresis with the heat effect past a stretching plate is analyzed. Micropolar fluid is assumed as a base fluid and the plate is considered to move with a linear velocity and subject to the variation of the reference temperature and concentration. The latitude of flow is limited to being two-dimensional and is steadily affected by sensitive fluid film size with the effect of thermal radiation. The basic equations of fluid flow are changed through the similarity variables into a set of nonlinear coupled differential equations with physical conditions. The suitable transformations for the energy equation is used and the non-dimensional form of the temperature field are different from the published work. The problem is solved by using Homotopy Analysis Method (HAM). The effects of radiation parameter R, vortex-viscosity parameter Δ, permeability parameter Mr, microrotation parameter Gr, Soret number Sr, thermophoretic parameter τ, inertia parameter Nr, Schmidt number Sc, and Prandtl number Pr are shown graphically and discussed.
Low-Pressure Plasma Sterilization for Test Specimens to be Worn on Splints in the Oral Cavity
Authors: Naumova Ella A. , Engel Alexander-Simon , Kranz Hagen Tizian , Schneider Marvin , Tietze Jan , Dittmar Thomas , Fiebrandt Marcel , Stapelmann Katharina , Piwowarczyk Andree , Kuczius Thorsten , Arnold Wolfgang H.
Published: February 2019

Bacterial biofilms adhere to all oral surfaces and may alter or degrade them. For investigations of the oral biofilm, growing on new restorative dental biomaterials, sterilized dental enamel surfaces as natural, control, and reference materials are used. A novel method for disinfection and sterilization of surfaces is low-pressure plasma (LPP) sterilization, which is a nondestructive and nontoxic technology. The roughness of the dental enamel surface was determined before and after LPP sterilization. Enamel discs were placed in dental splints and worn for five days in vivo. Oral biofilm was fixed for scanning electron microscopy (SEM). Biofilms growing in vitro were characterized microbiologically before and after sterilization and examined by confocal laser scanning microscopy (CLSM). Microbiology demonstrated that various bacterial strains were present in the biofilms. SEM showed multiple layers of densely packed bacteria, and CLSM demonstrated that the biofilm contained live and dead bacteria. After LPP sterilization, no biofilm could be detected, and the enamel surface remained unaltered. It may be concluded that LPP sterilization is an effective, nondestructive method for disinfection of enamel before application in the oral cavity. LPP sterilization may be suitable for sterilization of dental materials without altering their surfaces.
Advances in Early Detection of Pancreatic Cancer
Authors: Kanno Atsushi , Masamune Atsushi , Hanada Keiji , Kikuyama Masataka , Kitano Masayuki
Published: February 2019

Pancreatic ductal adenocarcinoma (PDAC) is a lethal disease. PDAC is the fourth leading cause of death in the United States and Japan based on epidemiological data. Early detection of PDAC is very important to improve the prognosis of PDAC. Early detection of pancreatic ductal adenocarcinoma (PDAC) requires further examination after selecting cases with risk factors for the condition, such as family history, hereditary pancreatic carcinoma syndrome, intraductal papillary mucinous neoplasms, or chronic pancreatitis. The Japan Study Group on the Early Detection of Pancreatic Cancer has investigated and clarified the clinicopathological features for the early diagnosis of PDAC. In Japan, an algorithm for the early diagnosis of PDAC, which utilized the cooperation of local clinics and regional general hospitals, has been a breakthrough in the detection of early-stage PDAC. Further approaches for the early diagnosis of PDAC are warranted.
Quantum Interference Effects on Information Phase Space and Entropy Squeezing
Authors: A. Mohamed Abdel-Baset , Hassan Shoukry S. , Alharbey Rania A.
Published: February 2019

Wehrl entropy and its density are used to investigate the dynamics of loss of coherence and information in a phase space for an atomic model of two-photon two-level atom coupled to different radiation reservoirs (namely, normal vacuum (NV), thermal field (TF) and squeezed vacuum (SV) reservoirs). Particularly, quantum interference (QI) effect, due to the 2-photon transition decay channels, has a paramount role in: (i) the atomic inversion decay in the NV case, which behaves as quantum Zeno and anti-Zeno decay effect; (ii) the coherence and information loss in the phase space; and (iii) identifying temporal information entropy squeezing. Results are also sensitive to the initial atomic state.
Sensorless Pose Determination Using Randomized Action Sequences
Authors: Mannam Pragna , Volkov Alexander , Paolini Robert , Chirikjian Gregory , Mason Matthew T.
Published: February 2019

This paper is a study of 2D manipulation without sensing and planning, by exploring the effects of unplanned randomized action sequences on 2D object pose uncertainty. Our approach follows the work of Erdmann and Mason’s sensorless reorienting of an object into a completely determined pose, regardless of its initial pose. While Erdmann and Mason proposed a method using Newtonian mechanics, this paper shows that under some circumstances, a long enough sequence of random actions will also converge toward a determined final pose of the object. This is verified through several simulation and real robot experiments where randomized action sequences are shown to reduce entropy of the object pose distribution. The effects of varying object shapes, action sequences, and surface friction are also explored.
Circular Economy as a Glocal Business Activity: Mobile Phone Repair in the Netherlands, Poland and China
Authors: Türkeli Serdar , Huang Beijia , Stasik Agata , Kemp René
Published: February 2019

Repair of mobile phones fits with the vision of a circular economy in an urban context and with the Sustainable Development Goal 11 Sustainable Cities and Communities. Drawing on the literature about firm level competitiveness and closed-loop design through repair, remanufacturing or recycling, we analyze the business ecosystem of independent mobile phone repair shops in the Netherlands, Poland and China as a glocal business activity. The analysis is based on primary data collection through a questionnaire to independent repair shops in the Netherlands (n = 130), Poland (n = 443) and China (n = 175) with response rates of 13%, 12%, 40%, respectively; and 17 interviews in the Netherlands, 40 in Poland, and 70 in China. Findings indicate that to maintain a strong position in the local market and to sustain the trust of customers, independent mobile phone repair shops offer a range of customized services based on direct contact with customers. In China, the increasing prices of spare parts and falling prices of mobile phones constitute the most important challenges, whereas in the Netherlands and Poland, the most important challenges are the competitive pressures from informal repair activities, and new repair shops. Our research also revealed that repairability strongly depends on the global manufacturers’ circularity choices.
A Distributed Generation Hybrid System for Electric Energy Boosting Fueled with Olive Industry Wastes
Authors: Vera David , Jurado Francisco , de Mena Bárbara , C. Hernández Jesús
Published: February 2019

This paper presents the theoretical model and the simulation of a cutting edge hybrid power system composed of an externally-fired gas turbine (EFGT) coupled with an organic Rankine cycle (ORC) as a bottoming unit for the maximization of electrical power. The power plant is fed with different biomass sources from olive industry wastes (pruning, dry pomace, stones, leaves and twigs), providing more than 550 kW of electric power and a net electrical efficiency of 26.0%. These wastes were burnt directly at atmospheric pressure in an EFGT, producing 400 kW of electric power and exhaust gases at 300 °C. Ten suitable ORC working fluids have been studied to maximize the electric power generation: cyclohexane, isohexane, pentane, isopentane, neopentane, R113, R245fa, R365mfc, R1233zd and methanol. The best fluid was R1233zd, reaching 152.4 kW and 22.1% of ORC thermal efficiency; as drawback, however, R1233zd was not suitable for Combined Heat and Power CHP applications due its lower condensation temperature. Thus, despite R113 gave minor electricity production (137.5 kW) this allowed to generate additional thermal power (506.8 kW) in the way of hot water at 45 °C.
Time-Aware Monitoring of Overhead Transmission Line Sag and Temperature with LoRa Communication
Authors: Wydra Michal , Kubaczynski Pawel , Mazur Katarzyna , Ksiezopolski Bogdan
Published: February 2019

The techniques of Dynamic Line Rating (DLR) for Overhead Transmission Line (OTL)’s are currently dynamically developed. DLR systems typically rely on weather, temperature, inclination, and current measurements to calculate tension and sag, where sensors need to be installed directly on wires. Such systems are very reliable and ensure high accuracy in determining maximum allowable current. However, their installation may require switching off the transmission line from the operation. In order to receive precise values regarding the actual operating conditions of the whole transmission line, DLR sensors measuring wire temperature or tension should be installed at many points of OTL. The minimum number of installation points should cover at least each tension section and critical spans, thereby increasing installation costs. The alternative method that allows for the monitoring of OTL is the use of the vision system based on cameras. Installed on the OTLs’ poles, cameras can take photos which, appropriately processed, can provide data about the sag and temperature of wires, without the necessity of switching OTL from the operation for installation or further maintenance. Such a vision system facilitates also data transmission, because it does not require measurement data to be transmitted from the sensor station installed on the wire to the base station located on the pole (for instance, via radio). This article aims to present the concept of a vision system that monitors sag and temperature of Overhead Transmission Lines (OTLs)’ using Long Range (LoRa) wireless communication and data transmission. The developed system consists of a camera and a microcomputer equipped with LoRa communication module. The whole system monitors OTLs’ spans by taking photos, processing images for wire sag-temperature estimation, and sending results to the operator’s Supervisory Control And Data Acquisition (SCADA). The system communication architecture is also proposed and investigated for data transmission time when monitoring the whole OTL.
Ignition of Welding Arc and UV Actinic Hazard Evaluation
Authors: Rybczyński Andrzej , Wolska Agnieszka , Wisełka Mariusz , Matusiak Jolanta , Pfeifer Tomasz
Published: February 2019

Welding arcs emit strong ultraviolet (UV) radiation, which could pose serious health risks for skin and eyes. According to Directive 2006/25/EC, UV hazard evaluation has to be performed in the working environment. The measurement of welding arc ignition radiation is a difficult task. This article describes the effort made to determine actinic radiant exposure levels during welding arc ignition in the controlled environment of a welding laboratory. A new method of UV actinic hazard evaluation from welding arc ignition radiation using a CCD spectroradiometer combined with a photometer is presented. The hazard of UV emitted in pulsed metal active gas welding (MAG-P) of construction steel is described. The duration of ignition peak in the study was in the range of 9–15 ms. The actinic radiant exposure during arc ignition over aversion response time was in the range of 0.26–1.12 J/m2. The daily exposure time can easily exceed the permissible exposure time obtained in our study, i.e., 13–34 s, which means that UV radiation form MAG-P arc welding is hazardous for workers in the vicinity of the welding arc. The measurement method presented in the article enables determination of radiant exposure of arc ignition radiation.
Numerical Analysis of Aerodynamic Characteristics of Hyperloop System
Authors: Oh Jae-Sung , Kang Taehak , Ham Seokgyun , Lee Kwan-Sup , Jang Yong-Jun , Ryou Hong-Sun , Ryu Jaiyoung
Published: February 2019

The Hyperloop system is a new concept that allows a train to travel through a near-vacuum tunnel at transonic speeds. Aerodynamic drag is one of the most important factors in analyzing such systems. The blockage ratio (BR), pod speed/length, tube pressure, and temperature affect the aerodynamic drag, but the specific relationships between the drag and these parameters have not yet been comprehensively examined. In this study, we investigated the flow phenomena of a Hyperloop system, focusing on the effects of changes in the above parameters. Two-dimensional axisymmetric simulations were performed in a large parameter space covering various BR values (0.25, 0.36), pod lengths (10.75–86 m), pod speeds (50–350 m/s), tube pressures (~100–1000 Pa), and tube temperatures (275–325 K). As BR increased, the pressure drag was significantly affected. This is because of the smaller critical Mach number for a larger BR. As the pod length increased, the total drag and pressure drag did not change significantly, but there was a considerable influence on the friction drag. As the pod speed increased, strong shock waves occurred near the end of the pod. At this point, the flows around the pod were severely choked at both BR values, and the ratio of the pressure drag to the total drag converged to its saturation level. At tube pressures above 500 Pa, the friction drag increased significantly under the rapidly increased turbulence intensity near the pod surface. High tube temperatures increase the speed of sound, and this reduces the Mach number for the same pod speed, consequently delaying the onset of choking and reducing the aerodynamic drag. The results presented in this study are applicable to the fundamental design of the proposed Hyperloop system.
Environmental Salinity Affects Growth and Metabolism in Fingerling Meagre (Argyrosomus Regius)
Authors: Ruiz-Jarabo Ignacio , Tinoco Ana Belén , Vargas-Chacoff Luis , Martos-Sitcha Juan Antonio , Rodríguez-Rúa Ana , Cárdenas Salvador , Mancera Juan Miguel
Published: February 2019

The meagre (Argyrosomus regius), a farmed fish in Mediterranean countries, seasonally migrates from offshore areas to estuaries for reproduction. During the first two years of life, the meagre evidences a certain grade of euryhalinity by staying in brackish waters close to the shore. The aim of the present study was to establish if fingerling growth in brackish water is improved compared to seawater, where current culture procedures are conducted. Three-month-old fingerlings were maintained for 45 days under two different salinity regimens (12 and 39 ppt). Several growth parameters as well as osmoregulatory and metabolic variables were assessed. Specific growth rate and hepatosomatic index values revealed that fingerlings performed better in brackish waters (12 ppt) compared to 39 ppt. This study contributes to optimizing meagre rearing conditions, thereby supporting the role of A. regius in aquaculture diversification.
Impact of HVT Vaccination on Splenic miRNA Expression in Marek’s Disease Virus Infections
Authors: Hicks Julie A. , Liu Hsiao-Ching
Published: February 2019

Marek’s Disease is a lymphoproliferative disease of chickens caused by Marek’s Disease Virus. Similar to other herpesviruses, Marek’s Disease Virus (MDV) encodes its own small non-coding regulatory RNAs termed microRNAs (miRNAs). We previously found that the expression profile of these viral miRNAs is affected by vaccination with Herpesvirus of Turkeys (HVT). To further characterize miRNA-mediated gene regulation in MDV infections, in the current study we examine the impact of HVT vaccination on cellular miRNA expression in MDV-infected specific-pathogen-free (SPF) chickens. We used small RNA-seq to identify 24 cellular miRNAs that exhibited altered splenic expression in MDV infected chickens (42 dpi) compared to age-matched uninfected birds. We then used Real Time-quantitative PCR (RT-qPCR) to develop expression profiles of a select group of these host miRNAs in chickens receiving the HVT vaccine and in vaccinated chickens subsequently infected with MDV. As was seen with viral miRNA, host miRNAs had unique splenic expression profiles between chickens infected with HVT, MDV, or co-infected birds. We also discovered a group of transcription factors, using a yeast one-hybrid screen, which regulates immune responses and cell growth pathways and also likely regulates the expression of these cellular miRNAs. Overall, this study suggests cellular miRNAs are likely a critical component of both protection from and progression of Marek’s Disease.
Co-Expression Network Analysis and Hub Gene Selection for High-Quality Fiber in Upland Cotton (Gossypium hirsutum) Using RNA Sequencing Analysis
Authors: Zou Xianyan , Liu Aiying , Zhang Zhen , Ge Qun , Fan Senmiao , Gong Wankui , Li Junwen , Gong Juwu , Shi Yuzhen , Tian Baoming , Wang Yanling , Liu Ruixian , Lei Kang , Zhang Qi , Jiang Xiao , Feng Yulong , Zhang Shuya , Jia Tingting , Zhang Lipeng , Yuan Youlu , Shang Haihong
Published: February 2019

Upland cotton (Gossypium hirsutum) is grown for its elite fiber. Understanding differential gene expression patterns during fiber development will help to identify genes associated with fiber quality. In this study, we used two recombinant inbred lines (RILs) differing in fiber quality derived from an intra-hirsutum population to explore expression profiling differences and identify genes associated with high-quality fiber or specific fiber-development stages using RNA sequencing. Overall, 72/27, 1137/1584, 437/393, 1019/184, and 2555/1479 differentially expressed genes were up-/down-regulated in an elite fiber line (L1) relative to a poor-quality fiber line (L2) at 10, 15, 20, 25, and 30 days post-anthesis, respectively. Three-hundred sixty-three differentially expressed genes (DEGs) between two lines were colocalized in fiber strength (FS) quantitative trait loci (QTL). Short Time-series Expression Miner (STEM) analysis discriminated seven expression profiles; gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation were performed to identify difference in function between genes unique to L1 and L2. Co-expression network analysis detected five modules highly associated with specific fiber-development stages, especially for high-quality fiber tissues. The hub genes in each module were identified by weighted gene co-expression network analysis. Hub genes encoding actin 1, Rho GTPase-activating protein with PAK-box, TPX2 protein, bHLH transcription factor, and leucine-rich repeat receptor-like protein kinase were identified. Correlation networks revealed considerable interaction among the hub genes, transcription factors, and other genes.
The Singularity of Cetacea Behavior Parallels the Complete Inactivation of Melatonin Gene Modules
Authors: Lopes-Marques Mónica , Ruivo Raquel , Alves Luís Q. , Sousa Nelson , Machado André M. , Castro L. Filipe C.
Published: February 2019

Melatonin, the hormone of darkness, is a peculiar molecule found in most living organisms. Emerging as a potent broad-spectrum antioxidant, melatonin was repurposed into extra roles such as the modulation of circadian and seasonal rhythmicity, affecting numerous aspects of physiology and behaviour, including sleep entrainment and locomotor activity. Interestingly, the pineal gland—the melatonin synthesising organ in vertebrates—was suggested to be absent or rudimentary in some mammalian lineages, including Cetacea. In Cetacea, pineal regression is paralleled by their unique bio-rhythmicity, as illustrated by the unihemispheric sleeping behaviour and long-term vigilance. Here, we examined the genes responsible for melatonin synthesis (Aanat and Asmt) and signalling (Mtnr1a and Mtnr1b) in 12 toothed and baleen whale genomes. Based on an ample genomic comparison, we deduce that melatonin-related gene modules are eroded in Cetacea.
Social Assistance Payments and Food Insecurity in
Australia: Evidence from the Household
Expenditure Survey
Authors: Temple Jeromey B. , Booth Sue , Pollard Christina M.
Published: February 2019

It is widely understood that households with low economic resources and poor labourmarket attachment are at considerable risk of food insecurity in Australia. However, little is knownabout variations in food insecurity by receipt of specific classes of social assistance payments thatare made through the social security system. Using newly released data from the 2016 HouseholdExpenditure Survey, this paper reports on variations in food insecurity prevalence across a range ofpayment types. We further investigated measures of financial wellbeing reported by food-insecurehouseholds in receipt of social assistance payments. Results showed that individuals in receiptof Newstart allowance (11%), Austudy/Abstudy (14%), the Disability Support Pension (12%),the Carer Payment (11%) and the Parenting Payment (9%) were at significantly higher risk of foodinsecurity compared to those in receipt of the Age Pension (<1%) or no payment at all (1.3%). Resultsfurther indicated that food-insecure households in receipt of social assistance payments enduredsignificant financial stress, with a large proportion co-currently experiencing “fuel” or “energy”poverty. Our results support calls by a range of Australian non-government organisations, politicians,and academics for a comprehensive review of the Australian social security system
Suicide Mortality Patterns in Greek Work Force before and during the Economic Crisis
Authors: Alexopoulos Evangelos C. , Kavalidou Katerina , Messolora Fani
Published: February 2019

Background: The global recession of 2007 has attracted research attention in regard to a possible increase of deaths by suicide among employed populations. The aim of the current study was to update the first Greek study on suicide mortality among broad occupational groups during 2000–2009, with the last available data covering the first period of economic crisis and recession in Greece. Methods: Data on suicide deaths for the age groups of 15–39, 40–49 and 50–59, between 2000–2013 were retrieved from the national statististical authority of Greece, ELSTAT. The coding of suicide used was X60–X84 (intentional self-harm), based on the 10th International Classification of Diseases (ICD-10). Comparative mortality ratio (CMR) and exact 95% confidence intervals (CI) are presented. Results: Males and females in the occupational group of clerks exhibited high and increased CMRs during the crisis period (2010–2013). Although high ratios for males in elementary, agricultural and fishery and armed forces occupational groups were monitored during the whole period, a decrease was evident during the crisis period. Increased trends in CMRs during the crisis were monitored for both males and females in the broad occupational group of members including managers, executives and directors. In addition, females especially in the 50–59 age group showed increased ratios and trends in several occupational groups during the crisis, especially in technologists and associate professionals, plant and machine operators and assemblers, professionals, and craft and related trade workers. Conclusions: Austerity-related stress should alert key stakeholders and provide mental health and suicide prevention interventions for employed occupations.
My Journey: Development and Practice-Based Evidence of a Culturally Attuned Teen Pregnancy Prevention Program for Native Youth
Authors: Kenyon DenYelle Baete , McMahon Tracey R. , Simonson Anna , Green-Maximo Char , Schwab Ashley , Huff Melissa , Sieving Renee E.
Published: February 2019

A clear need exists for teen pregnancy prevention programs that are responsive to the specific needs and cultural contexts of Native American communities. Recent data indicates that the birth rate for Native teens is nearly two and a half times the rate for White teens (32.9 versus 13.2). To address this disparity, we conducted formative research with Northern Plains Native American community members, resulting in My Journey, a culturally attuned curriculum for 6–8th graders. My Journey is grounded in traditional values and teachings to promote self-efficacy in sexual health decision-making and engagement in prosocial behaviors. We conducted a pilot study with 6–8th grade students (n = 45), aged 11–14 years (22 females, 23 males). Pilot study findings confirm program feasibility and acceptability. The process evaluation revealed that teachers liked the curriculum, particularly its adaptability of cultural components and ease of student engagement. The outcome evaluation demonstrated that My Journey provided an avenue for NA youth to increase their sex refusal self-efficacy. Application of the culture cube framework revealed My Journey has made a meaningful practice-based evidence contribution as a community-defined, culturally integrated curriculum that is effective. Future directions include broader implementation of My Journey, including adaption for additional populations.
Are Young Men Getting the Message? Age Differences in Suicide Prevention Literacy among Male Construction Workers
Authors: King Tania L. , Batterham Philip J. , Lingard Helen , Gullestrup Jorgen , Lockwood Chris , Harvey Samuel B. , Kelly Brian , LaMontagne Anthony D. , Milner Allison
Published: February 2019

Suicide is a leading cause of death among young men. Help-seeking is known to be poor among this group, and little is known about what interventions are most successful in improving suicide prevention literacy among young men. This research aims to examine: (1) age differences in beliefs related to suicide prevention literacy and attitudes to the workplace in addressing mental health among male construction workers; (2) age differences in response to a workplace suicide prevention program. Pre- and post-training survey data of 19,917 male respondents were obtained from a workplace training program database. Linear regression models and predictive margins were computed. Mean differences in baseline beliefs, and belief change were obtained for age groups, and by occupation. Young men demonstrated poorer baseline suicide prevention literacy but were more likely to consider that mental health is a workplace health and safety issue. There was also evidence that young men employed in manual occupations had poorer suicide prevention literacy than older men, and young men employed in professional/managerial roles. The youngest respondents demonstrated the greatest intervention-associated change (higher scores indicating more favourable belief change) to People considering suicide often send out warning signs (predicted mean belief change 0.47, 95% CI 0.43, 0.50 for those aged 15–24 years compared to 0.38, 95% CI 0.36, 0.41 for men aged 45 years and over), and to The construction industry must do something to reduce suicide rates (predicted mean belief change 0.17, 95% CI 0.15, 0.20 for those aged 15–24 years compared to 0.12, 95% CI 0.10, 0.14 among men aged 45 years and over). Results indicate that while suicide prevention literacy may be lower among young men, this group show amenability to changing beliefs. There were some indications that young men have a greater propensity to regard the workplace as having a role in reducing suicide rates and addressing mental health, highlighting opportunity for workplace interventions.