bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cross-cultural Education in the Formation of Supranational Communal Competence
Authors: Nikitorowicz Jerzy 
Published: April 2020

Abstract
The text presents the assumptions of cross-cultural education, emphasizing that in the multicultural world it is necessary to look for solutions used in the past as regards the formation and functioning of supranational communities. The author believes that currently, in light of increasing nationalisms, cross-cultural competence that enables the formation of supranational communities is indispensable.
He points out that we should refer to the tradition of the Commonwealth of many nations in this respect. He considers the functioning of the Polish-Lithuanian Commonwealth, experiences of the multicultural policy of that time, where other nations were treated with appreciation and respect, as something that should be accomplished by contemporary cross-cultural education. He highlights the need to draw on that multicultural experiment, to reflect on it and analyze it in order to realize the essence of tradition of civil liberties and relationships between free people and communities based on freedom.
Influence of the Shape of the Test Specimen Produced by 3D Printing on the Stress Distribution in the Matrix and in Long Reinforcing Fibers
Authors: Handrik Marián , Vaško Milan , Majko Jaroslav , Sága Milan , Dorčiak Filip 
Published: April 2020

Abstract
The stress distribution in specimens designed for the tensile testing is evaluated in the article. The reinforcement consists of long fibers that copy the outer contour of the specimen. The fibers are inserted within the curvature at the edge of the specimen with the neck. The stress distribution in fibers and matrix of dogbone specimen and specimen of rectangular shape is analyzed and compared. The analysis of stress state is analyzed in FEM software ADINA. Long fibers deposited in specimen were modeled using rebar elements.
Modeling of the Controlled Air Spring
Authors: Rágulík Jiří , Sivčák Michal 
Published: April 2020

Abstract
The pneumatic springs are frequently used as a machine component. They are mainly used for passive vibration damping with the possibility to regulate the working height of the springs. The paper describes the creation of a mathematical model of a spring controlled thru the PID regulator. At conclusion are summarized the limits of PID control and sketches the future possibility of substituting the PID controller by a neural network.
Thermodynamic Analysis of Low GWP Refrigerant Mixtures in a Refrigerator as Replacement to R-134A
Authors: Hasheer Sk Mohammad , Srinivas Kolla 
Published: April 2020

Abstract
Chlorofluorocarbons and hydro chlorofluorocarbons (HCFCs) are replaced by hydroflourocarbons (HFCs) which is not harmful to the ozone layer. However, few of HFCs have a relatively high global warming potential (GWP) and are subject to further examination due to growing concerns about global climate change. The goal now is to find the next generation of environmentally sustainable work fluids with an insignificant direct environmental impact in terms of ozone depletion and global warming potential. This document introduces the mixture of low-GWP refrigerants like R440A, R430A, R1234ze (E)/152a (50:50 by mass), R290/600a (40/60), R290/600(60/40), R290/600(50/50), ARM 42,ARM 42a and AC5 are used to replace R-134a in a domestic refrigeration system without doing any modifications to the system. The performance of the refrigerator was observed in terms of volumetric cooling capacity, blower discharge temperature, and coefficient of performance, refrigeration effect and energy consumption of a blower.
Impact of trainee involvement on patient radiation exposure and contrast volumes during invasive cardiac procedures
Authors: Kansal Vinay , Simard Trevor , Di Santo Pietro , Chong Aun Yeong , So Derek , Hossain Alomgir , Small Gary , Chow Benjamin J.W. , Hibbert Benjamin 
Published: April 2020

Purpose: The impact of cardiology fellows (CFs) and interventional cardiology fellows (ICFs) on patient radiation and contrast exposure during diagnostic coronary angiography and percutaneous coronary intervention is unknown.

Methods: Between 2011 and 2014, 16,175 cases were retrospectively assessed
involving 27 CFs, 22 ICFs and 24 staff as primary operators.

Results: During diagnostic coronary angiography, ICFs administered the lowest radiation dose (5,648±5,523 cGy*cm2; 1.30 ± 1.27 mSv)—achieving 22% less radiation than the staff (6,889±4,294 cGy*cm2; 1.58 ± 0.99 mSv) and 36% less than CFs (7,700±6,751 cGy*cm2; 1.77 ± 1.55 mSv) (p<0.01). When adjusted for access site, CFs administered more radiation than either the ICFs or staff. However, differences between ICFs and staff were exclusively observed during transradial procedures (p<0.01). With regards to contrast administration, ICFs administered less contrast (126.3 ± 57.6 mL) than either CFs (130±52.4 mL) or staff (132.7±47.6 mL) (p<0.01)—again, a finding isolated to the transradial cohort. Of the 6,751 percutaneous coronary intervention cases, no significant differences existed between the ICFs or staff cardiologists in patient radiation exposure—but a CF as the primary operator resulted in an 18% increase in radiation exposure. Notably, contrast use was not different amongst the types of operators (p<0.05).

Conclusion: In conclusion, having a cardiology fellow as primary operator during invasive cardiac procedures increases patient radiation exposure and minimally increases contrast administration. Strategies to minimize patient radiation exposure while maintaining trainee involvement should be evaluated.
Ceramic Coatings via MOCVD in Injection Molding Tools to Influence Thermal and Demolding Properties
Authors: Frettlöh V. , Mumme F. , Fornalczyk G. , Sommer M. , Beck C. , Korres M. 
Published: April 2020

AbstractTool surfaces can be protected against corrosion and wear by thin film coatings. In addition to the protective properties, ceramic materials with low thermal conductivity, such as yttrium-stabilized zirconium oxide, can thermally insulate tool surfaces. In an injection molding process, the thermal insulation enables a more precise partial tempering and can thus be used to reduce surface defects on the plastic parts produced. Furthermore, the coating can have a positive effect on the demolding of the plastic parts. The coatings are applied in a hot wall reactor by metal organic chemical vapor deposition (MOCVD). This enables a homogeneous application of zirconium oxide based thin films on steel tools with complex 3D surfaces. The performance of the coatings was evaluated in various injection molding tests and assessed by the quality of the manufactured parts.
Mechanical properties and wear-corrosion resistance of a new compound extrusion process for magnesium alloy AZ61
Authors: Liu Jiehui , Hu Hongjun , Liu Yang , Zhang Dingfei , Ou Zhongwen , Zhi Yan 
Published: April 2020

Abstract
Compound extrusion (CE) is a newly developed plastic deformation technique which combines direct extrusion (DE) with a two-pass equal channel angular extrusion (ECAE). This paper focuses on the strength, ductility and anti-corrosion properties of an NaCl solution at certain concentrations and the wear-resistance of dry sliding AZ61 magnesium alloy prepared by CE and DE. It is found that the strength and elongation of the AZ61 alloy prepared by CE are enhanced because of grain refinement. Furthermore, AZ61 magnesium alloy made by CE displays higher corrosion and wear resistance than that prepared by DE. Experimental results prove that CE is a prospective manufacturing method for improving the mechanical properties, anti-corrosion and anti-wear of AZ61 magnesium alloy.
Influence of nozzle temperature and volumetric filling on the mechanical properties of 3D-printed PEEK
Authors: Vogel Danny , Weißmann Volker , Rührmund Leo , Hansmann Harald , Bader Rainer 
Published: April 2020

Abstract
Fused deposition modeling is a layer-by-layer 3D printing technology used to additively manufacture polymers. A major benefit of 3D-printed polymers is the option of tailoring their mechanical properties by varying the process parameters. In addition, the present study investigates the influence of the filling degree (50 % or 100 %) and the nozzle temperature during manufacturing on the mechanical properties of 3D-printed poly-ether-ether-ketone (PEEK) material. PEEK samples were built either compact (filling degree 100 %) or closed-cell porous (filling degree 50 %), using three different nozzle temperatures (390 °C, 430 °C and 470 °C). In static bending tests, the bending properties were evaluated and compared with injection molded PEEK samples. Bending strength and modulus increased up to 21.1 %, when the nozzle temperature was increased and up to 40.8 % when the volumetric filling was altered. The results indicate that nozzle temperature and volumetric filling can be altered to tailor the bending properties of 3D-printed PEEK for particular applications. However, the mechanical properties of the 3D-printed samples determined in the current study could not achieve those of the properties of the injection molded PEEK.
Butterfly optimization algorithm for optimum shape design of automobile suspension components
Authors: Yıldız Betül Sultan , Yıldız Ali Rıza , Albak Emre İsa , Abderazek Hammoudi , Sait Sadiq M. , Bureerat Sujin 
Published: April 2020

Abstract
This article presents an implementation of one of the latest optimization methods of obtaining light vehicle designs. First, the problem of coupling with a bolted rim is optimized using the butterfly optimization algorithm (BOA). Finally, the BOA is used to solve the shape optimization of a vehicle suspension arm. It is utilized from the Kriging metamodeling method to obtain equations of objective and constraint functions in shape optimization. At the end of the research effort in this paper, the weight reduction of the suspension arm by using the BOA is 32.9 %. The results show the BOA’s ability to design better optimum components in the automotive industry.
Determination of stress concentration factors for shafts under tension
Authors: Ozkan Murat Tolga , Erdemir Fulya 
Published: April 2020

Abstract
Computer-based design and optimization have become increasingly important in recent years. This paper has investigated the stress concentration factors (SCF) Kt for shoulder filleted shafts with a hole and without a hole. This study contains two types of shoulder filleted shafts, i. e., a stepped bar of circular cross section with shoulder filleted and a tube with filleted shafts under tension stresses. Investigations on SCF that have been carried out in experimental and theoretical studies, were updated and validated for 2 types of shafts. The charts have been converted into numerical value using high precision computer techniques. Dimensional ratios and SCF were determined using previous work charts. This study determines maximum stresses for shoulder filleted shafts by three dimensional finite element analysis (FEA) and artificial intelligence techniques. A set of SCF charts was converted into numerical values and this data was organized and stored in an Excel file. ANSYS models were created and applied the boundary conditions on the models. And also mesh optimizations were performed. Artificial neural networks (ANN) models were designed using previously collected and verified data. Previous works, ANSYS and ANN results were compared to each other. As a result, ANN model and chart results show a good agreement. The usage of ANN model does not require any mathematical formulae or converting the numerical data action for determining the Kt result for shafts. ANN model usage was identified as a very useful and practical method.
Long-Term Effects of Enriched Environment on Neurofunctional Outcome and CNS Lesion Volume After Traumatic Brain Injury in Rats
Authors: MAEGELE M. , BRAUN M. , WAFAISADE A. , SCHÄFER N. , LIPPERT-GRUENER M. , KREIPKE C. , RAFOLS J. , SCHÄFER U. , ANGELOV D. N. , STUERMER E. K. 
Published: April 2020

To determine whether the exposure to long term enriched environment (EE) would result in a continuous improvement of neurological recovery and ameliorate the loss of brain tissue after traumatic brain injury (TBI) vs. standard housing (SH). Male Sprague-Dawley rats (300-350 g, n=28) underwent lateral fluid percussion brain injury or SHAM operation. One TBI group was held under complex EE for 90 days, the other under SH. Neuromotor and sensorimotor dysfunction and recovery were assessed after injury and at days 7, 15, and 90 via Composite Neuroscore (NS), RotaRod test, and Barnes Circular Maze (BCM). Cortical tissue loss was assessed using serial brain sections. After day 7 EE animals showed similar latencies and errors as SHAM in the BCM. SH animals performed notably worse with differences still significant on day 90 (p<0.001). RotaRod test and NS revealed superior results for EE animals after day 7. The mean cortical volume was significantly higher in EE vs. SH animals (p=0.003). In summary, EE animals after lateral fluid percussion (LFP) brain injury performed significantly better than SH animals after 90 days of recovery. The window of opportunity may be wide and also lends further credibility to the importance of long term interventions in patients suffering from TBI.
Different Effects of 7-nitroindazole and L-NAME Administered Both Individually and Together on the Cardiovascular System of the Rat
Authors: KRISTEK F. , DROBNA M. , CACANYIOVA C. 
Published: April 2020

We evaluated the effects of NG-nitro-L-arginine methylester (L-NAME) (50 mg/kg/day) and 7-nitroindazole (7NI) (10 mg/kg/day) administered from 10th-16th week of age either individually or together on cardiovascular system of Wistar rats and SHR. Systolic blood pressure (sBP) was measured weekly by the plethysmographic method. For morphological studies, the animals (n=10) were perfused with a fixative (120 mm Hg), and thoracic aorta and carotid and coronary arteries were processed for electron microscopy. For functional investigation (n=10), aortic rings were used in an organ bath. In Wistar rats, L-NAME evoked an increase of sBP; hypertrophy of the heart and arterial walls; an increase in cross-sectional areas (CSA) of endothelial cells (EC), muscle cells (SMC), extracellular matrix (ECM), and a decrease in acetylcholine-induced endothelial-dependent relaxation (EDR). 7NI evoked sBP-independent hypotrophy of the heart and arterial walls, a decrease in CSA of EC and SMC without affecting the CSA of ECM, and a mild decrease in acetylcholine-induced EDR. 7NI and L-NAME administered together evoked lower effect on BP and trophicity of the heart and all arteries, and a similar decrease in acetylcholine-induced EDR compared to L-NAME alone. In SHR, 7NI did not evoke any effect on the studied parameters.
Perancangan Sistem Multi Computer Numerical Control (CNC) untuk Plotter dan Laser Engraving
Authors: Sobirin Diki Muhamad , Utama Jana 
Published: April 2020

ABSTRAK – Tujuan dari penelitian ini adalah membuat CNC yang memiliki 2 fungsi dalam 1 sistem. Dengan memanfaatkan USB serial untuk komunikasi antara komputer dan mikrokontroler. Program untuk mengoperasikan CNC dirancang dengan menggunakan perangkat lunak LabVIEW, program akan mengkonversi gambar menjadi G-Code dan mengirim G-Code ke dalam sistem CNC untuk melakukan proses plotter atau laser engraving. CNC Plotter dapat membuat sebuah pola gambar pada kertas dengan bolpoin secara otomatis. Sedangkan CNC Laser Engraving dapat membuat sebuah gravir pada kayu dengan memanfaatkan panas laser, panas laser akan mengikis permukaan kayu secara otomatis. Dalam merancang multi CNC 2 buah motor stepper digunakan sebagai akuator penggerak sumbu, dan untuk penggerak bolpoin menggunakan motor servo. Adapun laser yang digunakan untuk gravir kayu menggunakan dioda laser berdaya 500 mw. Berdasarkan hasil pengujian dalam penelitian ini, Program pada LabVIEW dapat mengkonversi gambar menjadi G-Code laser, dan program dapat mengirim G-Code ke dalam sistem CNC, sehingga CNC dapat melakukan proses grafir laser pada kayu serta dapat mengatur ketebalan grafir sesuai dengan kebutuhan. Adapun kecepeatan pemakan ideal 50-500 mm / menit dan kecepatan pemakan maksimal 2000 mm / menit. Sementara itu, CNC Plotter dapat mencetak sebuah gambar bidang berbentuk kotak dengan ukuran terkecil 2 mm x 2 mm, dan lingkaran dengan diameter terkecil 2 mm dengan tingkat akurasi 100%. Maksimal dimensi gambar yang dapat dikerjakan Multi CNC ini 300 mm x 300 mm.
Kata Kunci – Multi CNC, LabVIEW, G-Code, Mikrokontroler.
MOLECULAR DIVERSITY OF nrDNA ITS REGION AFFECTED HETEROSIS IN SUNFLOWER (Helianthus annuus)
Authors: & et al Kanoosh 
Published: April 2020

A study was conducted to specify mutations of the internal transcribed spacer (ITS) in the nucleotides of nuclear ribosomal DNA (nrDNA) and their molecular relationship with heterosis exhibited by the six A- lines and three R-testers of sunflower. The trail was conducted at the fields of the College of Agriculture, University of Anbar, Abu Ghraib during two seasons (spring and fall 2016). Parental lines were crossed according to lineΧtester crossing scheme to produce 18 single hybrids, genotypes were sown to assess their phenotypic performance in the fall season. Results of the molecular analysis of ITS sequencing showed that the rearrangement of single nucleotides had accumulated in a higher rate in the F1 hybrids compared with their ancestor inbreds. The total number of mutations was 268, and deletion mutations accounted for the largest proportion with 209 mutation (71 in lines and 138 in hybrids). In contrast, the transition mutations were 25 all occurred in the hybrids, however the number of transversions recorded 17only. Based on DNA sequence of the nrDNA ITS region the total genotypes were separated into two main groups in cluster analysis following the nearest neighbor method. There was a significant convergence between R2 and both A4ΧR2 and A6ΧR3 hybrids scoring higher values of similarity in context ITS sequence. To be specific, the hybrid A2ΧR3 exhibited the best desirable heterosis for days to 75% flowering and leaf area, while hybrid A5ΧR3 had the highest heterosis for head traits, height and area.
IDENTIFIKASI MAHASISWA UNDERACHIEVER (STUDI KASUS PADA MAHASISWA SAINS DAN TEKNOLOGI UNIVERSITAS ISLAM NEGERI SUNAN KALIJAGA)
Authors: Dalimunthe Kariamin 
Published: April 2020

Tujuan penelitian ini adalah untuk menggambarkan faktor-faktor dan penyebab mahasiswa underachiver pada mahasiswa. Penelitian ini menggunakan metode kualitatif dengan model pendekatan penelitian studi kasus. Adapun metode pengumpulan data dengan menggunakan wawancara semi-terstruktur, observasi dan dokumentasi. Subjek penelitian adalah mahasiswa saintek UIN Sunan Kalijaga, yang terindikasi mengalami underachiever. Hasil penelitian menunjukkan bahwa penyebab underachiver ini sangat kompleks mulai dari masalah keluarga, teman sebaya, psikologis, fasilitas kampus, kurangnya motivasi serta game online. Mahasiswa underachiever sejatinya adalah individu yang berbakat atau memilki potensi lebih, namun mengalami permasalahan sehingga tidak bisa menunjukan prestasinya dengan baik. Telah banyak penelitian-penelitian sebelumnya mengenai anak underachiever namun belum sepenuhnya memperjelas fenomena tersebut apalagi dikalangan mahasiwa, sehingga perlu dilakukan indentifikasi lebih lanjut. Identifikasi dilakukan untuk mengetahui penyebab permasalahan mereka, hasil ini diharapkan bisa dipakai oleh para pelaku dan mereka yang berkecimpung di dunia pendidikan dengan tujuan bisa mengoptimalkan potensi yang mereka miliki.
eTourism for Socio-Economic Development
Authors: Inversini Alessadro , Rega Isabella 
Published: April 2020

Tourism has often been described as an economic driving force that contributes to rural and emerging economies development. However, when it comes to the social aspect of development the nature of this contribution is still debated by academics. Information and Communication Technologies can help enhancing the socio-economic contribution of tourism by fostering community-based tourism independent marketing and sales dis-intermediation. eT4D can be defined as the independent use of technologies by micro and small community based tourism firms to market and sell their products and services thus fostering local socio-economic development.
Por uma Educação Física da ordem da potência: o que pode o corpo em movimento?
Authors: Correia Elder Silva , Almeida Felipe Quintão de 
Published: April 2020

A partir de uma pesquisa teórica em filósofos como Spinoza, Deleuze e Guattari, problematizamos o modo pela qual as práticas corporais podem colocar para o corpo a questão do limite de sua (im)potência por meio de um circuito de afectos que vai do desamparo à alegria. Concluímos que aquelas práticas podem ser um território privilegiado para a investigação “do que pode o corpo em movimento?”, trazendo consequências para a Educação Física ao lidar pedagogicamente com elas.
Performance of the IRI-2016 over Santa Maria, a Brazilian low-latitude station located in the central region of the South American Magnetic Anomaly (SAMA)
Authors: Moro Juliano , Xu Jiyao , Denardini Clezio Marcos , Araújo Resende Laysa Cristina , Pereira Silva Régia , Su Chen Sony , da Silva Picanço Giorgio Arlan , Zhengkuan Liu , Li Hui , Yan Chunxiao , Wang Chi , Schuch Nelson Jorge 
Published: April 2020

Abstract. In this work we analyze the ionograms obtained by the
recent digisonde installed in Santa Maria (29.7∘ S,
53.7∘ W, dip angle = −37∘), Brazil, to
calculate the monthly averages of the F2 layer critical frequency
(foF2), its peak height (hmF2), and the E-region critical
frequency (foE) acquired during geomagnetically quiet days from September 2017 to August 2018. The monthly averages are compared to the 2016 version
of the International Reference Ionosphere (IRI) model predictions in order
to study its performance close to the center of the South America Magnetic
Anomaly (SAMA), which is a region particularly important for high-frequency
(HF) ground-to-satellite navigation signals. The foF2 estimated with
the Consultative Committee International Radio (CCIR) and International
Union of Radio Science (URSI) options makes good predictions throughout the year, whereas, for hmF2, it is recommended to use the SHU-2015 option
instead of the other available options (AMTB2013 and BSE-1979). The IRI-2016
model outputs for foE and the observations presented very good
agreement.
La vida es sueñoReimagined: Inversion, Mimicry, andCommunitasin Teatro Inverso’sRosaura(2018)
Authors: Gascón Christopher D. 
Published: April 2020

AbstractIn Rosaura, Teatro Inverso revisits Calderón’s La vida es sueño as an arena of contention in which women struggle against men for control of their lives. Directors Sandra Arpa and Paula Rodríguez call into question systems of male privilege operant in the play and foreground the self-actualization process of their protagonist. To this end, they invert outcomes that consolidate male power in the original text by replacing key points in Segismundo’s trajectory with similarly pivotal moments in Rosaura’s development. In addition, they satirize phallocentrism through mimicry of the instruments, language, and gestures of male privilege. Throughout the action, the actors create a sense of community and inclusiveness by engaging their audience, humanizing themselves, and dispelling any illusions of absolute truth and authority, unlike the male characters contending for the throne in Calderón’s classic.