bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Modification with Different Contents of Sb and Sr on the Thermal Conductivity of Hypoeutectic Al-Si Alloy
Authors: Guo Jin , Guan Zhi-Ping , Yan Rui-Fang , Ma Pin-Kui , Wang Ming-Hui , Zhao Po , Wang Jin-Guo
Published: December 2020

In this paper, the effects of size, morphology and distribution of eutectic silicon on the thermal conductivity of Al-8Si alloy modified by Sr (0.04, 0.08, 0.12 wt.%) and Sb (0.1, 0.3, 0.5 wt.%) elements with T6 heat treatment were investigated. The results show that the modified fibrous eutectic silicon has a significant capability of improvement of thermal conductivity, while the amount of the modifier has a relatively weak effect on thermal conductivity. After T6 treatment, the fracture or spheroidization of the flake eutectic silicon and the disappearance of clustering phenomenon could raise thermal conductivity, but the coarsening of fibrous eutectic silicon is inconducive to thermal conductivity. Finally, the effect of eutectic silicon on electron transport is analyzed in detail, which could provide a reference for enhancing the thermal (or electrical) conductivity of hypoeutectic Al-Si alloy through effective microstructure control.
Localized Strain Analysis of Ce- and Mg-Treated Cast Iron under Uniaxial Compression
Authors: Chakraborty Subhojit , Indeck Joseph , Steinmetz Philipp , Friess Jessica , Hazeli Kavan , Genau Amber L.
Published: December 2020

Cast iron exhibits a wide range of mechanical properties, depending on its microstructural features. The microstructure of cast iron consists of several microconstituents with different elastic-plastic behavior, making the strain non-uniform across the bulk material. To understand the individual effects of these microconstituents on the overall mechanical behavior, local strain analysis using digital image correlation analysis was carried out. Samples with two different compositions (varying cerium, magnesium and silicon) were processed at different solidification velocities in a Bridgman furnace. Sections of the directionally solidified samples were loaded under uniaxial compression to measure global and local strain behavior. Despite the variability of the microstructure, the stress–strain curves obtained by digital image correlation (DIC) were found to react in a well-controlled way to changes in solidification velocity. It was observed that high-strain failure (greater than 15%) was accompanied by local straining of the softer ferritic phase, but during low-strain failure, local straining was not prominent. Higher nodularities, due to higher solidification velocities, raised the compressive strength without affecting the toughness significantly. Higher percentages of carbides led to higher compressive strengths with corresponding losses in ductility. The continuity of the matrix was also found to play an important role in the behavior during compression.
Synthesis and Electrochemical Characterisation of Magnetite Coatings on Ti6Al4V-ELI
Authors: Montiel Adriana , Bustamante Edgar Onofre , Escudero María Lorenza
Published: December 2020

Titanium alloys have been widely employed in implant materials owing to their biocompatibility. The primary limitation of these materials is their poor performance in applications involving surfaces in mutual contact and under load or relative motion because of their low wear resistance. The aim of this work is to synthesis magnetite coatings on the Ti6Al4V-ELI alloy surface to increase corrosion resistance and to evaluate its electrochemical behaviour. The coatings were obtained using potentiostatic pulse-assisted coprecipitation (PP-CP) on a Ti6Al4V-ELI substrate. The preliminary X-Ray Diffraction (XRD) results indicate the presence of the magnetite coating with 8–10 nm crystal sizes, determined for the (311) plane. Using X-ray photoelectron spectroscopy (XPS), the presence of the magnetite phase on the titanium alloy was observed. Magnetite coating was homogeneous over the full surface and increased the roughness with respect to the substrate. For the corrosion potential behaviour, the Ti6Al4V-ELI showed a modified Ecorr that was less active from the presence of the magnetite coating, and the impedance values were higher than the reference samples without coating. From the polarization curves, the current density of the sample with magnetite was smaller than of bare titanium.
Fatigue and Fracture of Traditional and Advanced Structural Alloys
Authors: Berto Filippo
Published: December 2020

Prevention and prediction of unexpected fracture and fatigue failures constitute a key objective in any engineering application [...]
Theoretical Design of the Scattering-Based Sensor for Analysis of the Vehicle Tailpipe Emission
Authors: Molaie Sama , Lino Paolo
Published: December 2020

Measurement regulations demand, among other requirements, the reduction of particulate matter emissions from diesel engines. Considering this, the establishment of a new measurement instrument for periodic emission control and detection of the Diesel Particulate Filter (DPF) performance after the vehicle exhaust is necessary. To fulfil these requirements, this paper proposes the design of a new, simple, low-weight layout after the vehicle tailpipe. In order to check the operation condition of the proposed sensor, different factors such as the temperature (−10 to 50 ℃) humidity (60%), and flow rate of the sampled emission (laminar condition) are considered. The proposed layout uses an optical particle counter as a portable instrument for real-time detection of the particle concentration after exhaust of the internal combustion engine.
Gold Mineralization at the Maletoyvayam Deposit (Koryak Highland, Russia) and Physicochemical Conditions of Its Formation
Authors: Sidorov Evgeny G. , Borovikov Andrey A. , Tolstykh Nadezhda D. , Bukhanova Daria S. , Palyanova Galina A. , Chubarov Valery M.
Published: December 2020

Microthermometry study of fluid inclusions in quartz veins of the Maletoyvayam deposit (Koryak Highland, Russia) was carried out. This epithermal gold deposit contains unique Au compounds including maletoyvayamite, which has not been reported anywhere else. Two paragenetic mineral associations (pyrite-quartz and maletoyvayamite-quartz) with quartz of different generations corresponding to different pulses were also described. Only early generations of quartz (Q1) include ore minerals: pyrite for the first mineral assemblage, and in Au-bearing minerals, sulfosalts, bismuthinite, and others—for the second assemblage. A study on fluid inclusions in quartz showed a salinity (mainly NaCl + KCl) range from 0.2 to 4.3 wt.% NaCl eq., increasing from the first mineral association to the second due to boiling fluids. The obtained temperature variations for quartz crystallization were 295–135 °C, the fluid pressure ranged from 79 to 4 bar. On the other hand, the range of conditions obtained for the gold productive ore association is more narrow: salinity of the fluid inclusions is 4.3 wt.% NaCl eq., the temperatures vary from 255 °C to 245 °C, and the pressure from 39 to 32 bar. These physicochemical characteristics of the Maletoyvayam ore deposit greatly coincide with other HS-type epithermal deposits; however, within the Central Kamchatka Volcanic Belt it is so far the only deposit of this type reported.
Separation of Products from Mineral Sequestration of CO2 with Primary and Secondary Raw Materials
Authors: Kremer Dario , Wotruba Hermann
Published: December 2020

Rising levels of greenhouse gases (GHG) in our atmosphere make it necessary to find pathways to reduce the amount of GHG, especially emissions of CO2. One approach is carbon capture and utilization by mineralization (CCUM). With this technology, it is possible to bind CO2 chemically from exhaust gas streams in magnesium or calcium silicates. Stable products of this exothermic reaction are carbonates and amorphous silica. Being amongst the biggest emitters of CO2, the cement industry has to find ways to reduce emissions. Geological mapping in Europe has been carried out to find suitable feedstock material, mainly olivines but also slags, to perform lab‑scale carbonation tests. These tests, conducted in a 1.5 L autoclave with increased pressure and temperature, have been scaled up to a 10 L and a 1000 L autoclave. The outcomes of the carbonation are unreacted feed material, carbonate, and amorphous silica, which have to be separated to produce substitutes for the cement industry as pozzolanic material (amorphous silica) or a value‑added product for other applications like paper or plastics (magnesite/calcite with bound anthropogenic CO2). Therefore, a process for the separation of ultrafine carbonation product was developed, consisting mainly of classification and flotation.
Highly Multifunctional GNP/Epoxy Nanocomposites: From Strain-Sensing to Joule Heating Applications
Authors: Sánchez-Romate Xoan F. , Sans Alejandro , Jiménez-Suárez Alberto , Campo Mónica , Ureña Alejandro , Prolongo Silvia G.
Published: December 2020

A performance mapping of GNP/epoxy composites was developed according to their electromechanical and electrothermal properties for applications as strain sensors and Joule heaters. To achieve this purpose, a deep theoretical and experimental study of the thermal and electrical conductivity of nanocomposites has been carried out, determining the influence of both nanofiller content and sonication time. Concerning dispersion procedure, at lower contents, higher sonication times induce a decrease of thermal and electrical conductivity due to a more prevalent GNP breakage effect. However, at higher GNP contents, sonication time implies an enhancement of both electrical and thermal properties due to a prevalence of exfoliating mechanisms. Strain monitoring tests indicate that electrical sensitivity increases in an opposite way than electrical conductivity, due to a higher prevalence of tunneling mechanisms, with the 5 wt.% specimens being those with the best results. Moreover, Joule heating tests showed the dominant role of electrical mechanisms on the effectiveness of resistive heating, with the 8 wt.% GNP samples being those with the best capabilities. By taking the different functionalities into account, it can be concluded that 5 wt.% samples with 1 h sonication time are the most balanced for electrothermal applications, as shown in a radar chart.
Aptamer Functionalized Lipid Multilayer Gratings for Label-Free Analyte Detection
Authors: Prommapan Plengchart , Brljak Nermina , Lowry Troy W. , Van Winkle David , Lenhert Steven
Published: December 2020

Lipid multilayer gratings are promising optical biosensor elements that are capable of transducing analyte binding events into changes in an optical signal. Unlike solid state transducers, reagents related to molecular recognition and signal amplification can be incorporated into the lipid grating ink volume prior to fabrication. Here we describe a strategy for functionalizing lipid multilayer gratings with a DNA aptamer for the protein thrombin that allows label-free analyte detection. A double cholesterol-tagged, double-stranded DNA linker was used to attach the aptamer to the lipid gratings. This approach was found to be sufficient for binding fluorescently labeled thrombin to lipid multilayers with micrometer-scale thickness. In order to achieve label-free detection with the sub-100 nm-thick lipid multilayer grating lines, the binding affinity was improved by varying the lipid composition. A colorimetric image analysis of the light diffracted from the gratings using a color camera was then used to identify the grating nanostructures that lead to an optimal signal. Lipid composition and multilayer thickness were found to be critical parameters for the signal transduction from the aptamer functionalized lipid multilayer gratings.
Photosensitive Thin Films Based on Drop Cast and Langmuir-Blodgett Hydrophilic and Hydrophobic CdS Nanoparticles
Authors: Nagamine Momoka , Osial Magdalena , Widera-Kalinowska Justyna , Jackowska Krystyna , Krysiński Paweł
Published: December 2020

Comparative photoelectrochemical studies of cadmium sulfide (CdS) nanoparticles with either hydrophilic or hydrophobic surface properties are presented. Oleylamine organic shells provided CdS nanoparticles with hydrophobic behavior, affecting the photoelectrochemical properties of such nanostructured semiconductor. Hydrophilic CdS nanoparticles were drop-cast on the electrode, whereas the hydrophobic ones were transferred in a controlled manner with Langmuir-Blodgett technique. The substantial hindrance of photopotential and photocurrent was observed for L-B CdS films as compared to the hydrophilic, uncoated nanoparticles that were drop-cast directly on the electrode surface. The electron lifetime in both hydrophilic and hydrophobic nanocrystalline CdS was determined, revealing longer carrier lifetime for oleylamine coated CdS nanoparticles, ascribed to the trapping of charge at the interface of the organic shell/CdS nanoparticle and to the dominant influence of the resistance of the organic shell against the flux of charges. The “on” transients of the photocurrent responses, observed only for the oleylamine-coated nanoparticles, were resolved, yielding the potential-dependent rate constants of the redox processes occurring at the interface.
The Antifungal Mechanism of Amphotericin B Elucidated in Ergosterol and Cholesterol-Containing Membranes Using Neutron Reflectometry
Authors: Delhom Robin , Nelson Andrew , Laux Valerie , Haertlein Michael , Knecht Wolfgang , Fragneto Giovanna , Wacklin-Knecht Hanna P.
Published: December 2020

We have characterized and compared the structures of ergosterol- and cholesterol-containing 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) membranes before and after interaction with the amphiphilic antifungal drug amphotericin B (AmB) using neutron reflection. AmB inserts into both pure POPC and sterol-containing membranes in the lipid chain region and does not significantly perturb the structure of pure POPC membranes. By selective per-deuteration of the lipids/sterols, we show that AmB extracts ergosterol but not cholesterol from the bilayers and inserts to a much higher degree in the cholesterol-containing membranes. Ergosterol extraction by AmB is accompanied by membrane thinning. Our results provide new insights into the mechanism and antifungal effect of AmB in these simple models of fungal and mammalian membranes and help understand the molecular origin of its selectivity and toxic side effects.
Three-Year Study of Markers of Oxidative Stress in Exhaled Breath Condensate in Workers Producing Nanocomposites, Extended by Plasma and Urine Analysis in Last Two Years
Authors: Pelclova Daniela , Zdimal Vladimir , Komarc Martin , Schwarz Jaroslav , Ondracek Jakub , Ondrackova Lucie , Kostejn Martin , Vlckova Stepanka , Fenclova Zdenka , Dvorackova Stepanka , Lischkova Lucie , Klusackova Pavlina , Kolesnikova Viktoriia , Rossnerova Andrea , Navratil Tomas
Published: December 2020

Human data concerning exposure to nanoparticles are very limited, and biomarkers for monitoring exposure are urgently needed. In a follow-up of a 2016 study in a nanocomposites plant, in which only exhaled breath condensate (EBC) was examined, eight markers of oxidative stress were analyzed in three bodily fluids, i.e., EBC, plasma and urine, in both pre-shift and post-shift samples in 2017 and 2018. Aerosol exposures were monitored. Mass concentration in 2017 was 0.351 mg/m3 during machining, and 0.179 and 0.217 mg/m3 during machining and welding, respectively, in 2018. In number concentrations, nanoparticles formed 96%, 90% and 59%, respectively. In both years, pre-shift elevations of 50.0% in EBC, 37.5% in plasma and 6.25% in urine biomarkers were observed. Post-shift elevation reached 62.5% in EBC, 68.8% in plasma and 18.8% in urine samples. The same trend was observed in all biological fluids. Individual factors were responsible for the elevation of control subjects’ afternoon vs. morning markers in 2018; all were significantly lower compared to those of workers. Malondialdehyde levels were always acutely shifted, and 8-hydroxy-2-deoxyguanosine levels best showed chronic exposure effect. EBC and plasma analysis appear to be the ideal fluids for bio-monitoring of oxidative stress arising from engineered nanomaterials. Potential late effects need to be targeted and prevented, as there is a similarity of EBC findings in patients with silicosis and asbestosis.
Resist-Free Directed Self-Assembly Chemo-Epitaxy Approach for Line/Space Patterning
Authors: Giammaria Tommaso , Gharbi Ahmed , Paquet Anne , Nealey Paul , Tiron Raluca
Published: December 2020

This work reports a novel, simple, and resist-free chemo-epitaxy process permitting the directed self-assembly (DSA) of lamella polystyrene-block-polymethylmethacrylate (PS-b-PMMA) block copolymers (BCPs) on a 300 mm wafer. 193i lithography is used to manufacture topographical guiding silicon oxide line/space patterns. The critical dimension (CD) of the silicon oxide line obtained can be easily trimmed by means of wet or dry etching: it allows a good control of the CD that permits finely tuning the guideline and the background dimensions. The chemical pattern that permits the DSA of the BCP is formed by a polystyrene (PS) guide and brush layers obtained with the grafting of the neutral layer polystyrene-random-polymethylmethacrylate (PS-r-PMMA). Moreover, data regarding the line edge roughness (LER) and line width roughness (LWR) are discussed with reference to the literature and to the stringent requirements of semiconductor technology.
Unidirectional Magnetic Anisotropy in Dense Vertically-Standing Arrays of Passivated Nickel Nanotubes
Authors: Locovei Claudiu , Filipoiu Nicolae , Kuncser Andrei , Stanciu Anda-Elena , Antohe Ştefan , Florica Camelia-Florina , Costas Andreea , Enculescu Ionuţ , Piraux Luc , Kuncser Victor , Antohe Vlad-Andrei
Published: December 2020

We report the facile and low-cost preparation as well as detailed characterization of dense arrays of passivated ferromagnetic nickel (Ni) nanotubes (NTs) vertically-supported onto solid Au-coated Si substrates. The proposed fabrication method relies on electrochemical synthesis within the nanopores of a supported anodic aluminum oxide (AAO) template and allows for fine tuning of the NTs ferromagnetic walls just by changing the cathodic reduction potential during the nanostructures’ electrochemical growth. Subsequently, the experimental platform allowed further passivation of the Ni NTs with the formation of ultra-thin antiferromagnetic layers of nickel oxide (NiO). Using adequately adapted magnetic measurements, we afterwards demonstrated that the thickness of the NT walls and of the thin antiferromagneticNiO layer, strongly influences the magnetic behavior of the dense array of exchange-coupled Ni/NiO NTs. The specific magnetic properties of these hybrid ferromagnetic/antiferromagnetic nanosystems were then correlated with the morpho-structural and geometrical parameters of the NTs, as well as ultimately strengthened by additionally-implemented micromagnetic simulations. The effect of the unidirectional anisotropy strongly amplified by the cylindrical geometry of the ferromagnetic/antiferromagnetic interfaces has been investigated with the magnetic field applied both parallel and perpendicular to the NTs axis.
Carbon Dots as Sensing Layer for Printed Humidity and Temperature Sensors
Authors: Rivadeneyra Almudena , Salmeron José F. , Murru Fabio , Lapresta-Fernández Alejandro , Rodríguez Noel , Capitan-Vallvey Luis Fermín , Morales Diego P. , Salinas-Castillo Alfonso
Published: December 2020

This work presents an innovative application of carbon dots (Cdots) nanoparticles as sensing layer for relative humidity detection. The developed sensor is based on interdigitated capacitive electrodes screen printed on a flexible transparent polyethylene terephthalate (PET) film. Cdots are deposited on top of these electrodes. An exhaustive characterization of the nanoparticles has been conducted along with the fabrication of the sensor structure. The accompanied experiments give all the sensibility to the Cdots, showing its dependence with temperature and exciting frequency. To the best of our knowledge, this work paves the path to the use of these kind of nanoparticles in printed flexible capacitive sensors aimed to be employed in the continuously expanding Internet of Things ecosystem.
Secularity and Transformation of the Faith-Based Community: Ethnography of the Religious Charity of Baha’i in Macau
Authors: Jing Yanchun , Zhu Jiangang , Han Yongjing
Published: December 2020

Since the 1970s, religious charities in Chinese communities have gradually become public and rational, transforming from previously raising donations for the temples or disaster relief. Even in mainland China, Buddhism, Christianity, and Islam all began to enter the secular society after the 1980s and gradually merged into local public life by providing public welfare. Little attention has been paid to Baha’i, which originated in Iran in the middle of the 19th century and has become one of the most rapidly expanding new religions in the world. Based upon the ethnography of a Baha’i group in Macau, we first introduce the development of Baha’i, its activities and its charity services. In considering this example, we engage with the following questions. As a new world religion, why would Baha’i carry out these charity events? How did it begin its charity activities in Macau? How do charity activities convey its religious philosophy and religious practice? How should we interpret these religious charity practices? This exploratory research on a religious group in Macau revealed that the modern religion derives publicity and rationalization from its strong driving force for secularization, that the believers are also increasingly emphasizing their social and cultural citizenship, and that the religious organization is also gradually transforming into a networked faith-based community.
Space and the Papacy
Authors: Consolmagno Guy
Published: December 2020

There has always been a powerful connection in human consciousness between the beauty and otherworldliness of the night sky, and humanity’s religious yearnings toward a reality beyond the mundane. When Pope Leo XIII established an astronomical observatory in 1891, it was as a way of demonstrating the Church’s support of science; his choice of astronomy in particular was based primarily on the Holy See’s already established good reputation in the field, and specific opportunities for international collaborations. Nonetheless, since its founding, Popes have taken advantage of the natural connection between sky and “heaven” to promote the exploration of space as a way of coming closer, emotionally and intellectually, to the Creator. However, the nature of how this connection is understood has changed significantly over the past 125 years, most recently with the challenges of the Space Age.
Patrolling the Scottish Border – plant migration history
Authors: Braithwaite Michael E.
Published: December 2020

There have been successive waves of plant migration north across the Scottish Border since the end of the Ice Age. For those species that never penetrated far into Scotland and which lack specialised means of long-distance dispersal, the distinctive distribution patterns shown by BSBI’s tetrad mapping provide evidence of the likely dates and dispersal mechanisms of the migrations, separating out migration relating to man’s activities. Twelve distribution maps have been prepared for native or archaeophyte species that illustrate contrasting histories. Conclusions are drawn as to whether or not species which lack specialised means of long-distance dispersal are able to migrate north over fragmented natural habitats in response to climate change.
Schoenoplectus × flevensis (S. lacustris × S. tabernaemontani, Cyperaceae) – A nomenclatural correction
Authors: Lansdown Richard V. , Rumsey Fred
Published: December 2020

Additional detail is provided to validate the new combination Schoenoplectus × flevensis (D.Bakker) Lansdown & Rumsey comb. & stat. nov.
Wrong-Site Surgery in Pennsylvania During 2015–2019: A Study of Variables Associated With 368 Events From 178 Facilities
Authors: Yonash Robert , Taylor Matthew
Published: December 2020

Wrong-site surgery (WSS) is a well-known type of medical error that may cause a high degree of patient harm. In Pennsylvania, healthcare facilities are mandated to report WSS events, among other patient safety concerns, to the Pennsylvania Patient Safety Reporting System (PA-PSRS) database. In the study we identified instances of WSS events (not including near misses) that occurred during 2015–2019 and were reported to PA-PSRS. During the five-year period, we found that 178 healthcare facilities reported a total of 368 WSS events, which was an average of 1.42 WSS events per week in Pennsylvania. Also, we revealed that 76% (278 of 368) of the WSS events contributed to or resulted in temporary harm or permanent harm to the patient. Overall, the study shows that the frequency of WSS varied according to a range of variables, including error type (e.g., wrong side, wrong site, wrong procedure, wrong patient); year; facility type; hospital bed size; hospital procedure location; procedure; body region; body part; and clinician specialty. Our findings are aligned with some of the previous research on WSS; however, the current study also addresses many gaps in the literature. We encourage readers to use the visuals in the manuscript and appendices to gain new insight into the relation among the variables associated with WSS. Ultimately, the findings reported in the current study help to convey a more complete account of the variables associated with WSS, which can be used to assist staff in making informed decisions about allocating resources to mitigate risk.
Unchartered Waters
Authors: Hoffman Regina
Published: December 2020

Meet Queen Quet Marquetta L. Goodwine—computer scientist turned head of state. Since 2000, she has led the Gullah/Geechee Nation, a group of more than one million inhabitants on the southeastern shores of the United States. She sat down with Editor-in-Chief Regina Hoffman to discuss life on the Sea Islands, strategies to improve care for minority patients, and how one Gullah/Geechee native launched a national movement to defend workers’ rights—and why you have never heard about it.
DEVELOPMENT OF NEURAL NETWORKS FOR FORECASTING ROUGHNESS WHEN MILLING VARIOUS MATERIALS
Authors: Erygin E. , Duyun T.
Published: December 2020

The article presents a methodology for the development and testing results of artificial neural networks for predicting roughness in finishing milling. Experimental data of various researchers in the processing of materials with different physical and mechanical properties are used as the initial data base for the creation and training of neural networks. The value of material hardness is taken as the main identifier of physical and mechanical properties. In addition to the hardness of the material, the input parameters of the nets are also the cutting modes: tool feed, depth and cutting speed. The data of the obtained roughness are used for several groups of materials: non-ferrous metals, structural and stainless steels, heat-resistant alloys and tool steel. Nine highly specialized neural networks have been created that predict roughness when milling a certain material, a number of combined networks by combining several databases, including a broad-based neural network for several groups of materials. A comparative analysis of the results of testing the developed neural networks by the criterion of relative error is carried out. Most of the presented neural networks have a satisfactory error not exceeding 10%. Individual neural networks have higher accuracy, showing an error within 5 %.
RESEARCH OF BITUMINOUS BINDER WITH STABILIZING ADDITIVES BY INFRARED SPECTROSCOPY AND X-RAY SPECTRAL ANALYSIS
Authors: Yastremskiy D.
Published: December 2020

Increasing the volume of crushed stone-mastic asphalt concrete used in the upper layers of road surfaces requires the development of effective stabilizing additives that ensure the uniformity of the asphalt mixture during short-term storage and transportation, as well as improving the properties of asphalt concrete. This additives include a complex stabilizing additive of the following composition: 90 % cellulose fibers from waste paper, 5 % rubber powder, 5 % viscous petroleum bitumen of the BND 90/130 brand. This article presents the results of a study of bitumen with the addition of "Viatop 66" and a complex cellulose-containing stabilizing additive (CSD). Using Fourier-transform spectroscopy, graphical data are obtained. as a result of their analysis, it is found that the interaction of stabilizing additives for crushed-mastic asphalt concrete with bitumen leads to the appearance of additional absorption bands characteristic of aromatic compounds (CH, benzene ring), sulfur-containing functional groups S=O st, R-SO-R, R-SO-OH, R-SO2-R, C=S st, as well as for C-O-H groups. X-ray spectral analysis confirmed the presence of additional sulfur-containing spectra in the composition of stabilizing additives. It is found that depending on the chemical composition of the stabilizing additives, the physical and mechanical characteristics of the bituminous binder and the resulting asphalt concrete change.
RECYCLED CONSTRUCTION WASTE AS A CONCRETE AGGREGATE FOR SUSTAINABLE BUILDING MATERIALS
Authors: Al'-Bo-Ali W. , Lesovik, R. , Sopin D. , Ahmed A. , Lesovik G.A.
Published: December 2020

In this work, an experimental study is conducted to compare the properties of aggregate from concrete waste generated during demolition, concrete laboratory waste and natural aggregates – which are used as control samples. The study examines the possibility of using demolition waste to develop building materials with stable properties, in order to obtain economic benefits from the disposal of man-made waste. Initially, the production of aggregates from waste is carried out by crushing concrete scrap from demolition waste and laboratory waste, followed by the study of their physical and chemical properties to obtain aggregates and concrete mixtures, the production of samples, and the determination of compressive, flexural and tensile strength. The correlation between the results obtained from various experiments is analyzed and a linear correlation between the compressive strength and other established mechanical properties is noted. The possibility of recycling construction waste, leading to the solution of several problems, is presented: reducing the cost of industrial waste disposal and improving the physical and mechanical properties of concrete by introducing it as a filler.
MUDANÇA DE HÁBITOS E ATITUDES PARA ALCANÇAR A ESTABILIDADE FINANCEIRA PESSOAL E CONHECER MELHOR A QUESTÃO AMBIENTAL PODEM INICIAR NA SALA DE AULA
Authors: Oliveira Agda Nunes dos Santos , Luiza Elaine Maria
Published: December 2020

MUDANÇA DE HÁBITOS E ATITUDES PARA ALCANÇAR A ESTABILIDADE FINANCEIRA PESSOAL E CONHECER MELHOR A QUESTÃO AMBIENTAL PODEM INICIAR NA SALA DE AULA
HUBUNGAN PENGETAHUAN LINGKUNGAN TERHADAP PERILAKU RAMAH LINGKUNGAN MAHASISWA STKIP YDB
Authors:   STKIP YDB Lubuk Alung, Nastuti Reni , Lelfita Lelfita ,   STKIP YDB Lubuk Alung
Published: December 2020

Masif dan semakin kompleknya permasalahan lingkungan hidup menjadi hal penting dan mendesak untuk semakin mengerakan prilaku ramah lingkungan, pada setiap lapisan masyarakat, termasuk mahasiswa, agar permasalahan lingkungan dapat teratasi. Penelitian ini bertujuan untuk Mengkaji hubungan pengetahuan lingkungan terhadap prilaku ramah lingkungan mahasiswa STKIP YDB Lubuk Alung. Karena masih sangat minim perilaku peduli lingkungan mahasiswa. Metode yang digunakan dalam penelitian ini ialah metode deskriptif dengan teknik korelaside dengan mengunakan uji t. Hasil penelitian menggambarkan bahwa mahasiswa memiliki pengetahuan yang tinggi tentang lingkungan di mana 82 % memiliki nilai pada rentangan 100-78 dan memiliki prilaku lingkungan yang rendah, hal ini ditunjukan dengan data hasil angket 30 % yang selalu berprilaku ramah lingkungan baik dikampus maupun di rumah. Berdasarkan analisis data hubungan pengetahuan lingkungan dengan prilaku lingkungan didapatkan bahwa t hitung sebesar 0,6819 dan t tabel sebesar 1,658 pada taraf signifikan 5% dan Hasil penelitian menyatakan tidak terdapat hubungan antara pengetahuan lingkungan dengan Prilaku lingkungan.
Tevekkül Yönelimi Ölçeği Geliştirilmesi: Geçerlik ve Güvenirlik Çalışması
Authors: ŞAHİN Meryem
Published: December 2020

İslam dinine ait önemli bir kavram olan tevekkül dini başa çıkma stratejisi olarak da değerlendirilmektedir. Araştırmada tevekkül yönelimini ölçebilecek bir ölçek geliştirilerek psikometrik özelliklerinin incelenmesi amaçlanmıştır. Öncelikle beşli Likert tipinde hazırlanan ve 54 maddeyi içeren madde havuzu uzman görüşleri ile (kapsam geçerliği) 44 maddeye indirilmiş, sonrasında 44 maddelik aday ölçek çalışma grubuna uygulanmıştır. Araştırmanın çalışma grubunu yaşları 19 ile 65 arası değişen, yaş ortalamaları 29,3 (±9,72) olan 338 kişi oluşturmaktadır. Ölçeğin geçerlik analizleri için kapsam geçerliği analizi, açımlayıcı faktör analizi ve doğrulayıcı faktör analizi yapılmıştır. Açımlayıcı faktör analizine göre ölçeğin 23 madde ve 3 boyuttan oluşan bir yapıya sahip olduğu, doğrulayıcı faktör analizine göre bu modelin iyi uyum verdiği bulunmuştur. Ölçeğin iç tutarlılık güvenirlik katsayısı 0,928 olarak bulunmuştur. Ölçeğin alt boyutları Duygu ve Düşünce, Davranışa Karşı Olumsuz Tutum, Davranışa Karşı Olumlu Tutum olarak isimlendirilmiştir. Bu sonuçlara göre geliştirilen Tevekkül Yönelimi Ölçeği’nin geçerli ve güvenilir bir ölçme aracı olduğu söylenebilir.
Infestações por Rhabditis spp
Authors: Sobral Samilla , Almeida Lauany Santos , Ferraz Carolina Magri , Junior Otávio Luiz Fidelis , Lopes Aline Del Carmen Garcia , Langoni Hélio , Moreira Tiago Facury , Lima José Antônio Correia , Vilela Vinícius Longo Ribeiro , Braga Fabio  Ribeiro
Published: December 2020

Os nematoides do gênero Rhabditis são responsáveis por causar a otite parasitária em bovinos leiteiros da raça Gir. Esta afecção parasitária tem sido relatada em vários países de clima quente e úmido. No Brasil, a rhabditiose tem sido descrita em diversas regiões, sendo responsável pela queda na produção de leite nos rebanhos afetados. Ao melhor do nosso conhecimento literário, a otite parasitária gera danos diretos na economia e sanidade animal, contudo, exististe uma certa discrepância no controle e terapêutica utilizados. O objetivo dessa revisão foi proporcionar a comunidade científica, técnicos e aos produtores rurais uma atualização do conhecimento da problemática da otite parasitária no Brasil e no mundo. O controle parasitário do Rhabditis spp., bem como a sua terapêutica ainda são considerados ineficazes, visto que as recidivas são comuns. Dessa forma, a problemática da otite parasitária no Brasil ainda carece de novos estudos, mas alguns protocolos alternativos experimentais recentes apontam sinergicamente para um “horizonte” mais produtivo no controle desta parasitose.
Kanser Teşhisi için Makine Öğrenmesi Tekniklerine Dayalı Yeni Bir Sınıflandırma Metodu
Authors: EYÜPOĞLU Can , YAVUZ Erdem
Published: December 2020

İnsan ölümlerinin en büyük nedenlerinden biri kanserdir. Kadınlar arasındaki kanser ölümlerinin başlıca sebebi ise meme kanseridir. Bu kanser türü sebebiyle yaşanan ölümleri azaltmanın yolu erken teşhistir. Uzman sistemler, yapay zeka ve makine öğrenmesi tekniklerinin tıp alanında kullanılmasının temel amaçlarından biri hastalıkları erken teşhis etmede doktorlara yardımcı olmaktır. Kanser türleri arasında özellikle meme kanserinde erken teşhis sayesinde ölüm riski büyük oranda düşürülebilir. Bu çalışmada temel bileşen analizi (Principal Component Analysis-PCA) ve ileri beslemeli sinir ağı (Feed Forward Neural Network-FFNN) temelli yeni bir kanser teşhisi yöntemi önerilmiştir. Önerilen yöntemin performansı Meme Kanseri Coimbra Veri Seti (Breast Cancer Coimbra Dataset-BCCD) üzerinde sınıflandırma doğruluğu, kesinlik, duyarlılık ve F-ölçütü metrikleri ile test edilmiştir. Ayrıca önerilen yöntemin klasik makine öğrenmesi teknikleri ve literatürdeki çalışmalar ile ayrıntılı olarak karşılaştırmalı performans analizi yapılmıştır. Deneysel sonuçlar önerilen yöntemin etkin olduğunu ve erken teşhis için doktorlar tarafından kullanılabileceğini göstermektedir.
Membangun Identitas Inklusif - Krisis Identitas Dalam Lensa Kajian Poskolonialisme
Authors: Wijanarko Robertus
Published: December 2020

Multidimentional crisis which became more visible in the Covid-19 pademic era, actually rooted in the crisis of identity of Indonesia. It occurs, especially when identitys is considered as essential caracters or inherent features of this nation, inherited from the previous generation. The understanding of such kind of identity causes defensive, exclusive attitudes at the level of individual, communal, or even as a nation. In this perspective life is simply considered as an arena of contestation and will end up in the subordination of the others. By utilizing the lens of Postcolonial Theory, I axhibit the roots of that crisis of identity, and also propose a new perspective, which is comprehending identity as a production or a continuous process in a making. This new understanding of identity, I believe, will enable Indonesia to cope with the crisis, and to find ethical foundations in preserving and cultivating their life inclusively.
Homo Homini Amicus: Tanggungjawab Kultural Gereja Dalam Zaman Ini
Authors: I Made Sudhiarsa Raymundus
Published: December 2020

This article is to promote the values of friendship from the Christianity anthropology perspective in the frame of nation community as a shared-home. Very often, friendship is reduced exclusively on ‘in-group’ and enriched by primordial mentality (religion, culture, race, communities in the society). They who don’t agree with the values lived by the ‘in-group’ regarded as ‘the others’, even, treated as dangerous opponents. Firstly, to build a great cultured society, the concept of ‘friendship’ (Latin: amicitia; Greek: philia) should be re-defined. In the Christianity anthropology, friendship, as the highest form of relationship, has its source in the belief that man is created in ‘God’s image’ (Gen 1:26-28), who has the responsibility to manage the shared-world to live together in harmony. Secondly, the Catholic education institutions, from elementary to university, need to continually self-empowered with the spirituality of friendship which promotes more civilized humanity, ‘with all your heart, and with all your soul, and with all your mind, and with all your strength’ (Mark 12:30)
Gereja Sebagai Komunitas Persahabatan
Authors: Situmorang Markus
Published: December 2020

Friendship is not something new in human life. It has existed since man existed in the world with others. Awareness of self and other creations encourages man to build friendship. Many philosophers and theologians have had ideas about the meaning of friendship. With friendship, our life becomes meaningful. The Scriptures also give the meaning of true friendship to human being. Therefore, friendship is a very essential thing in human life. True friendship needs to be based on love, trust, sincerity, sacrifice, kindness, and so on. Friendship itself must be born from the soul. A soul that is ready to give the best for friends. The friendships built by people are often fragile and vulnerable to break up. True friendship will not be eroded by time and distance. It will last forever when a soul is united in it. The Church is a community built by Jesus. The Church is born of friendship. Jesus gathers His friends at one Eucharistic table.
Konsep Persahabatan Dalam Pemikiran Thomas Aquinas
Authors: Saeng Valentinus
Published: December 2020

Friendship is a word that is very familiar to us and we often hear it in the daily people’s conversation. The public or general opinion understands that friendship is the same as a companionship or a meaning of friend has an identical sense with a companion or a colleague. But how about this identification? Is it true? This paper attempts to elaborate the friendship meanings, by presenting its motives (intentions) and purpose (finality), so that we can understand the signification of friendship. The object of this research is the concept of friendship in Thomas Aquinas' thought. And the approach used in this research is a critical historical study.
ANALISIS PRILAKU MEMINJAM/BERHUTANG ANGGOTA PADA BMTIA (BAITUL MAAL WAT TANWIL ISLAM ABDURAB)
Authors: Waldelmi Idel , Aquino Afvan , Aljufri Aljufri
Published: December 2020

Hasil penelitan menunjukkan alasan masyarakat (anggota BMTIA) meminjam uang lebih disebabkan oleh 2 hal seperti alasan keamanan pengelolaan keuangan yang mana dengan pendapatan tetap yang mereka peroleh setiap bulannya dan  dijadikan dasar untuk mminjam dalam rangka memenuhi kebutuhan keluarga dan Alasan ketidapercayaan dengan lembaga keuangan non syariah sehingga mereka lebih memilih berhutang di BMT Syariah. Walaupun terdapat banyak tawaran dari lembaga keuangan dan perbankan konvensional dengan menawarkan tingkat suku bunga yang beragam, namun dasar keyakinan nasabahlah/anggota BMT mereka lebih memilih BMT ynag berbasis syariah. Sedangkan  alasan kekuasaan, kualitas dan kegelisahaan bukan menjadi alasan bagi nasabah untuk berhutang di BMT syariah. Nasabah yang berhutang karena kebutuhan dan hutang yang diajukan sekedar untuk membeli kebutuhan pokok dan tidak mereka tidak gelisah akan kekurangan namun dengan adanya peluang yang ditawarkan BMT syariah sehingga mereka meminjam dan bergabung dengan BMT Islam Abdurrab. Adapun yang menjadi sampel dalam penelitian sebanyak 51 orang dari 168 anggota BMT, dengan menggunakan rumus skala likert. Metode yang digunakan dalam penelitian yakni metode Deskriftif Kualitatif.
Green Human Resource Management dan Kinerja Lingkungan: Studi Kasus pada Rumah Sakit di Kota Palembang
Authors: Hadjri Muhammad Ichsan , Perizade Badia , Zunaidah Zunaidah , Farla WK Wita
Published: December 2020

Based on the Environmental Quality Index reported by the Ministry of Environment and Forestry of the Republic of Indonesia, in 2017 the Environmental Quality Index rank of South Sumatra slipped to rank 20 nationally, wherein the previous year was ranked 16. Environmental performance was one of the factors in Environmental Quality Index. Most of the previous research on environmental performance and GHRM was carried out in the manufacturing industry analysis units, while other industrial fields have not been studied much including hospitals. In fact, the hospital is one of the business sectors that is quite related to the environment. This study aims to analyze the effect of GHRM which consists of the variables Green Recruitment and Selection (GRS), Green Training (GTR), and Green Compensation (GCO) partially or jointly on the performance of the hospital environment in Palembang City. The Grand Theory which is used in this research is Ecocentrism Theory and Triple Bottom Line. The population in this study were hospital employees at government hospitals in Palembang, totalling 2,270 people. By using the Slovin formula and the stratified proportional random sampling method, the number of samples who became respondents in this study was 248 people. This research is processed by multiple linear regression analysis techniques. The results showed that GRS, GTR, and GCO partially had a significant effect on environmental performance in hospitals in Palembang City. The results also show that GRS, GTR, and GCO together also have a significant effect on environmental performance.
中国水产品出口贸易的问题与对策探析
Authors: 刘 心仪 , 史 晓娟
Published: December 2020

论文基于中国水产品出口现状和存在问题的分析，提出了完善制度、把好质量关、提高品牌意识和政府充分支持等对策建议。
天津市养老机构服务质量影响因素研究
Authors: 李 强
Published: December 2020

论文根据理论模型建立养老机构服务质量评价体系，对选定的各项指标进行多元回归分析，探讨了各因素对养老机构服务质量的影响程度，有助于养老机构服务的提升改进。
新个税政策下员工个税筹划问题研究
Authors: 张 霁月
Published: December 2020

2018 年 8 月 31 日，中华人民共和国第十三届全国人民代表大会常务委员会第五次会议审议通过了《中华人民共和国个人所得税法》（以下简称《个人所得税法》）修正草案，对《个人所得税法》进行了根本性的变革，建立了综合与分类相结合的个人所得税制度。论文试从新个税政策下如何运用全年一次性奖金优惠政策和六项专项附加扣除政策的角度出发，分析如何进行最优个税筹划，使员工最大化享受税收优惠福利。
专利符合《专利法》第二十五条第一款第二项的案件分析及应对策略
Authors: 程 江涛 , 范 常达 , 张 立杰 , 程 江侠 , 程 江艳 , 程 华
Published: December 2020

电学的发明方案会涉及很多算法，因此很多发明因为在撰写的过程中不严谨，进而在专利审查过程中受阻。论文基于几个案例进行解剖，进而总结如何克服发明专利符合《专利法》第二十五条第一款第二项的问题。
Coping mechanisms adopted by women ex-offenders in Nyeri County, Kenya
Authors: Muthee John Mbai
Published: December 2020

Female offenders are distinctly different from male offenders, and present with their own gender-specific needs and issues both in and out of the correctional setting. Most approaches to Coping Mechanisms for female offenders are currently based on research involving males and approaches designed for males. Inquiry regarding the gender-specific needs of female inmates as they pertain to treatment, reentry programs, and Coping Mechanisms is necessary so professionals can better understand how to serve this population. This study investigated the Coping Mechanisms Adopted by Women ex-offenders in Nyeri County, Kenya. The study specifically investigated the effects of not addressing the challenges identified for women returning from prison in Nyeri County especially challenges connected to housing, employment, relationships, drug, and substance abuse as well as mental health after incarceration. This was a qualitative study adopting a phenomenological design. The site and respondents were purposively selected with snowballing being used to select the respondents to the point of saturation. This study made use of 41 women ex-convicts, 3 FGDs, and 9 key informants. Data were collected by the use of semi-structured interview schedules. Results indicated that currently, prison is negatively viewed by the community; this is primarily because of the isolation of prisoners and whatever happens behind the bars. The government should involve other sectors such as the churches, the media, schools, and Non- Governmental Organizations in educating the masses in order to ease the re-entry of ex-convicts
A CLINICAL STUDY ON AMPUTATIONS IN GENERAL SURGERY
Authors: Babu K. Vijay , Hussain Darga Mahammad Mehatab
Published: December 2020

Amputations is the Post graduates first case in the beginning and is one of the most ancient of all surgical procedures done for several indications, including trauma, peripheral vascular disease, tumor, diabetic foot infection and congenital anomalies.1,2,3 Some times limb amputation is considered the last resort when limb salvage is impossible or when the limb is dead or dying, viable but non- functional or endangering the patient's life.4
EFFECT OF HEAT, COLD AND COMBINED THERMAL STIMULATION ON MOTOR RECOVERY OF PARETIC LOWER LIMB IN ACUTE STROKE PATIENTS - RANDOMIZED CLINICAL TRIAL
Authors: Hubli Prameela P. , Joshua Abraham M. , Hubballi Prashant
Published: December 2020

Background and Purpose: In acute stroke, flaccidity prevailing on the affected side for first few days or weeks affects the gross functioning of patients like bed mobility, transfers, balance and gait functions. Studies have shown positive effects of combined Thermal Stimulation (TS) on acute hemiplegic patients, however individual thermal agents’ effectiveness is yet to be known.
Methods: 36 acute first time stroke patients with paretic lower extremity (Brunnstorm Stage ≥ III) were randomized into 3 groups (A,B,C) where A received heat, B received Cold and C received combined stimulation of heat and cold for 30 minutes followed by conventional physiotherapy for 2 weeks. Motor recovery of affected lower extremity was assessed using FMA – LE, MAS, Balance and postural control was assessed by BBS, PASS and at baseline, 1st week and 2nd week of intervention.
Results: Within group analysis was done using Wilcoxon’s Signed Rank Test which showed statistically significant changes in all groups at the end of 2 week session of thermal stimulation. For Paired between group analyses, Mann-Whitney U test was used which did not show much significant difference between the groups.
Conclusion: Thermal agents can be applied either individually or in combination as an adjunct to conventional physical therapy to improve lower extremity paresis in acute stroke population.