bluuebunny/crossref_metadata_2025 huggingface dataset:
Public standards of wireless transmission wireless
for safety improvement of raiway control
Authors: Lewiński Anrzej , Perzyński Tomasz
Published: April 2019

The paper deals concepts and solutions related to application of public, open wireless transmission in railway control and management systems. Presented concepts are connected with them research works, the obtained results confirm the possibility of such applications for safety transfer in railway systems corresponding to SIL classification. In all presented systems we can observe the improvement of safety in chosen elements of railway infrastructure and control. The proposed mathematical apparatus based on Markov processes allows to estimate the reliability parameters of all presented solutions.
Selected issues related to building investment portfolio and preparing projects
Authors: Gładyga Maciej
Published: April 2019

This paper deals with selected aspects of project portfolio development with the view of investment interaction within and outside a given organization. Having in mind the wide scope of the topic, the focus is put on relations among the projects as elements of the system. The possibility of synergy or competition effect among them is pointed out. As regards the investment preparation topic, the issue of consultation, as a key step of pre-realization phase, is discussed.
Construction of a Light Rail line to Wilanów
Authors: Madrjas Grzegorz
Published: April 2019

The paper describes main design ideas for a project of a tramway connection between districts of Warsaw: Wola, Ochota, Mokotów and Wilanów. Historical aspects, main spatial documents as well as feasibility studies are also discussed. Moreover, key design challenges are presented which concern routing options and limitations of passing through special locations.
Special purpose road companies
Authors: Kozłowska Małgorzata Klaudia , Oranowska Anna
Published: April 2019

In Polish legal system special purpose road companies could be created for almost 10 years, but only in 2015 actions were undertaken to actually establish them. The fundamental purpose of these companies is preparation and implementation of road transport’s infrastructure projects. The actual future investment plans for the special purpose road companies, have been introduced in the National Roads` Construction Program for years 2014-2023. The detailed purposes and legal form of these entities are also presented in the article.
The effectiveness of the load of railway bridges
Authors: Machelski Czesław , Wolek Czesłąw
Published: April 2019

A direct comparison of complex systems of forces occurring in the schemes loads of railway bridges is not possible. Each of the systems of movable forces of load bridge has a different structure and different geometrical parameters. Only bringing such a system into one type, for example dummy load, enables to compare the effectiveness of selected groups of loads. The multiplier load of two criteria analysis and assuming static scheme bridge elements in the form of a simply supported beam were applied in this study. The results of the comparative analysis: operational and standard loads adopted for the design, indicate that most of their effective-ness in the event of short elements (transoms and stringers) and small bridges span. In these types of elements poor representation of load model and design for locomotives operated on lines of the Polish State Railways was demonstrated.
The proposal of the integration of the railway tourist offer on Lower Silesia
Authors: Lewandowski Krzysztof
Published: April 2019

The aim of this article the proposal of the integration of railway transports and tourist attractions placed along or beside railway lines on the Lower Silesia region. This article presents the proposal of the yearlong calendar of the railway tourist events for Lower Silesia and proposal for integration about information of the bus lines to the tourist places around the railway station in Wałbrzych City.
Twenty years of the Centre for Exploitation of Experimental Track - history,
research and technical characteristics
Authors: Szulc Waldemar , Krużyński Marek
Published: April 2019

The article describes the history of the experimental track and premises which contributed to its construction. Technical characteristics of the infrastructure and different solutions of subtrack construction were also presented. Studies carried out on the track in the field of railway were listed.
Deformability of the upper zone of railroad subgrade with geotextiles
Authors: Pawłowski Michał
Published: April 2019

The aim of this article is to estimate the influence of the separation geotextile, placed in the upper zone of railroad subgrade, on the deformability of the subgrade. Vertical stresses in the subgrade of the protective layer with different thickness, due to the test and operational loads, were determined. The influence of variation in two different thicknesses of geotextiles on the stiffness measurements of railroad subgrade was examined. Practical conclusions were formulated on the basis of conducted analysis.
Static analysis of chosen imperfections of rail subgrade
on additional rail deflection of contactless track
Authors: Bednarek Włodzimierz
Published: April 2019

In the paper, the chosen imperfections of railway subgrade causing additional rail deflections in contactless tracks were analysed. For such imperfections the following problems were selected: contactless work of railway track resting on the local uneven subgrade; loss of contact between track and subgrade; influence of variable compressive force on the length of contactless track; change in support stiffness on the deflection of contactless rail track. The presented static analysis has shown the importance of unfavourable influence of selected factors on work of contactless rail track (e.g. increase in the length of contact loss between track and subgrade or arising an additional deflections and stresses). A special attention was paid on such imperfections, apart from deflections and stresses cause among other things a disturbance of translational motion of rolling stock due to these imperfections. In the paper, a special accent was laid on visualization the influence of selected factors on work of contactless rail track, giving in many places in the paper the proper publications, in which the complete procedures of theoretical analysis of the considered problems are shown in the comprehensive way.
Concept of measuring force adjustment of crossover drives
Authors: Dyduch Janusz , Pniewski Roman
Published: April 2019

As part of the project in the Department of Control Systems in Transport it has been developed a system for automatic data collection and automatic forecasting the status of railway signalling devices. In the frame of the project it was also developed a prototype system for wireless measurement of currents in drive motor together with parameters of environment. The system will be used for the automatic diagnosis of crossover drives.
Problematika Pendidikan Islam; Antara Determinisme Historis dan Realisme Praktis
Authors: Syarifah Masykurotus
Published: April 2019

Abstrak:

Pendidikan Islam sampai sekarang dapat dikatakan masih berada dalam posisi problematik antara 'determinisme historis' dan 'realisme praktis'. Di satu sisi, pendidikan Islam belum sepenuhnya keluar dari cita-cita kemuliaan masa lalu hegemoni tentang pemikiran dan peradaban Islam; Sementara di sisi lain, juga 'dipaksa' menerima tuntutan masa kini, terutama yang datang dari Barat, dengan orientasi yang sangat praktis. Perkembangan  pendidikan Islam di Indonesia, dapat disimpulkan bahwa basis yang digunakan adalah peradaban pembebasan pemberdayaan. Dasar dari reformasi ini adalah pendidikan dengan konsep keagamaan, demokrasi, toleransi, berbasis hukum, egaliter, menjunjung tinggi martabat manusia, berbasis budaya, berbasis global, anti kekerasan, dan berbasis antikorupsi. Sistem pendidikan Islam di masa kini dan masa yang akan datang perlu dipikirkan dan dibicarakan sebab-sebab permasalahannya, antara lain: Pertama, bahwa penyelenggaraan pendidikan Islam secara formal/ informal belum sesuai dengan pengertian pendidikan Islam itu sendiri; Kedua, bahwa sistem dan metode itu masih dalam lingkaran pendakalan (proses de islamisasi).

 Kata kunci: Pendidikan, Islam, historis, Realisme Praktis

 

Abstract:

Islamic education until now may be said to still be in a problematic position between 'historical determinism' and 'practical realism'. On the one hand Islamic education has not been entirely out of the ideals of the hegomonic past glories of Islamic thought and civilization; while on the other hand, it is also 'forced' to accept the demands of the present, especially those coming from the West, with a very practical orientation. 2) The renewal of Islamic education in Indonesia, it can be concluded that the basis used is empowerment-liberating civilization. The basis of this reform is education with religious foundations, democracy, tolerance building, law-based, egalitarian stance, uphold human dignity, cultural-based diversity, global-based, anti-violence, and anti-corruption-based. 3) Islamic education system in the present and the future should be considered and discussed the causes of the problem, among others: First, that the implementation of Islamic education in a formal / informal not in accordance with the understanding of Islamic education itself; Second, that the systems and methods are still in the circle of delinquency (de Islamization process).

 

Keywords: Education, Islam, historical, realism Practical
Peningkatan Motivasi Belajar Siswa Melalui Pelaksanaan Team Teaching
Authors: Rahmawati Rahmawati
Published: April 2019

Abstrak:

Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Subjek dari penelitian ini adalah siswa kelas X yang berjumlah 32 siswa. Penelitian dilakukan dalam dua siklus dan setiap siklus terdiri dari dua kali pertemuan. Teknik pengumpulan data dalam penelitian ini menggunakan observasi dan angket. Data yang diperoleh dianalisis dengan cara reduksi, paparan data dan penyimpulan. Juga dilakukan analisis data deskriptif untuk data hasil observasi. Berdasarkan hasil penelitian, diperoleh kesimpulan bahwa pelaksanaan team teaching agar dapat meningkatkan motivasi belajar matematika yaitu guru kelas X sebagai guru 1 dan peneliti sebagai guru 2 melaksanakan tahap perencanaan yang meliputi: (1) Menyususun RPP dengan menetapkan metode pembelajaran kooperatif tipe belajar bersama (learning together). (2) Pembagian peran dan tanggung jawab guru anggota team teaching serta pembagian pos-pos pengawasan di dalam kelas. (3) Menyusun teaching material yang berisi materi, LKS, latihan soal dan penugasan terstruktur. (4) Menyiapkan media dan perangkat pembelajaran. Dari hasil observasi keterlaksanaan team teaching, pada siklus I mencapai 90,48% dan 100% pada siklus II. Hasil penelitian menunjukkan bahwa adanya peningkatan motivasi belajar siswa yang ditunjukkan dengan besarnya rata-rata persentase dalam angket motivasi belajar siswa, yakni secara keseluruhan pada siklus I sebesar 74,41% dengan kategori sedang menjadi 87,28% dengan kategori tinggi pada siklus II.

Kata Kunci: Motivasi Belajar, Team Teaching

 

Abstract:

This research is a Classroom Action Research (PTK). The subjects of this study are students of class X which amounted to 32 students. The study was conducted in two cycles and each cycle consisted of two meetings. Data collection techniques in this study using observations and questionnaires. The data obtained were analyzed by means of reduction, data exposure and inferences. Also done descriptive data analysis for observation data. Based on the result of research, it can be concluded that the implementation of team teaching in order to increase the motivation to learn mathematics is the teacher of class X as teacher 1 and the researcher as the teacher 2 carry out the planning phase which include: (1) RPP formulating by establishing cooperative learning method of learning together). (2) Division of roles and responsibilities of teachers of team teaching members and distribution of monitoring posts in the classroom. (3) Prepare teaching material containing material, LKS, practice questions and structured assignment. (4) Preparing media and learning tools. From the observation of the implementation of team teaching, in the first cycle reached 90.48% and 100% in cycle II. The results showed that the increase in student learning motivation is indicated by the average percentage in the questionnaire of student learning motivation, that is overall in the first cycle of 74.41% with the category being 87.28% with the high category in cycle II.

Keywords: Learning Motivation, Team Teaching.
Implikasi Program Bahts Al-Masa'il Terhadap Nalar Kritis Santri di Pondok Pesantren Gedangan Daleman Kedungdung Sampang
Authors: Muqoffi Muqoffi
Published: April 2019

Abstrak:

Kurikulum pemerintah yang diselenggarakan di Sekolah/Madrasah perlu disempurnakan dengan program bahts al-masâil, sebuah diskusi ilmiyah yang dominan di Pondok Pesantren dalam rangka menjawab beragam persoalan masyarakat terkini sekaligus sebagai media obyektif dalam menumbuhkan nalar kritis terhadap diri santri. Karenanya, penulis merasa penting melakukan penelitian tentang program bahts al-masâil di Pondok Pesantren Gedangan Daleman Kedungdung Sampang dengan fokus terhadap prosedur dan mekanisme pelaksanaannya, baik di tingkat MI, MTs, MA dan Guru serta implikasinya terhadap nalar kritis santri. Dalam penelitian ini menggunakan metode kualitatif deskriftif dan hasil penelitiannya menjelaskan bahwa santri benar-benar punya nalar kritis dalam program bahts al-masâil tersebut dalam merespon jawaban dan penjelasan, mengkaji setiap referensi, menganalisa soal dan hasil keputusan, sehingga budaya kritis ini memberi dampak terhadap terciptanya mindset berpikir kritis di luar forum, baik berkaitan dengan kajian keilmuan maupun realitas kehidupan.

 

Kata Kunci: Bahts al-Masâil, Nalar Kritis
Pendidikan Pesantren dan Perubahan Nilai Religius
Authors: Wafa Ali , Wardi Moh.
Published: April 2019

Abstrak:

Penelitian ini merupakan kajian teorits tentang pendidikan pesantren sebagai lembaga pendidikan Islam tertua di Indonesia yang sudah memberikan banyak kontribusi dalam perubahan sosial kehidupan bangsa melalui penanaman nilai-nilai religius, yang dalam hal ini relevan dengan tujuan pendidikan Nasional, yakni berbudi luhur, amal shalih, kegiatan keagamaan sehari-hari, kemandirian, kesehatan rohani dan tanggung jawab kemasyrakatan. Hal tersebut menjadikan pendidikan pesantren mampu mengendalikan perubahan nilai-nilai dalam kehidupan. Beberapa pendapat mengatakan bahwa terdapat lima komponen pesantren untuk dapat disebut sebagai pesantren, antara lain: ada kiai, pondok, masjid, santri serta pengkajian kitab klasik (gundul). Kelima komponen tersebut merupakan satu-kesatuan yang saling berkaitan dalam pendidikan pesantren. Dalam penelitian ini fokus pada proses pendidikan pesantren dalam merubah dan menanmkan nilai-nilai kepada para santri.

 

Kata Kunci: Pendidikan Pesantren, Perubahan Nilai Religius

 

Abstract:

This research is a theoretical study of Islamic boarding school education as the oldest Islamic educational institution in Indonesia that has contributed a lot in the social change of the nation's life through the cultivation of religious values, as contained in the national educational goals of nobility, good deeds, daily religious, independence, spiritual health and community responsibility. This makes the boarding school education able to control changes in values ​​in life. Some opinions say that there are five components of the boarding school to be called as boarding school, among others: there are teacher of Islam, cottage, mosques, strict adherent of Islam and yellow book teaching (classical). The five components are a unit that cannot be separated from boarding school education. In this case the writer will explain how the boarding school education process in changing and instill values to the strict adherent of Islam.

 

Keywords: Islamic Boarding School Education, Change in Religious Value
Jurnalis Dalam Tinjauan Sosial Ekonomi Politik Pada Konflik Sunni-Syiah di Kabupaten Sampang
Authors: Aziz Abd , Matnin Matnin
Published: April 2019

Abstrak

Pemberitaan hasil liputan wartawan mengenai konflik bernuansa Sara antara kelompok Islam Syiah dan kelompok Islam Sunni yang terjadi di Sampang Madura Jawa Timur pada 26 Agustus 2012 telah menyebabkan satu orang meninggal, dan enam orang lainnya luka-luka, serta sebanyak 47 rumah warga Syiah ludes dibakar kelompok penyerang. Sedikitnya 282 warga Syiah di Desa Karang Gayam, Kecamatan Omben, dan Desa Blu'uran, Kecamatan Karangpenang, Sampang harus dievakuasi akibat konflik berdarah tersebut. Studi ini, mengkaji tentang kecenderungan keberpihakan media dan wartawan lokal dalam produksi berbeda, seperti sudut pengambilan engle berita, serta faktor-faktor lain yang mempengaruhi wartawan dalam menyajikan hasil liputan yang berbeda. Fokus studi pada media daring lokal dan nasional dengan memperhatikan beberapa hal Antara lain kedalaman informasi, upaya mengembalikan hak-hak kelompok Islam Syiah sebagai kelompok minuritas yang telah terusir dari kampung halamannya, serta analisa kecenderungan keberpihakan media lokal dalam menyajikan berita tentang konflik Syiah-Sunni tersebut yang hingga kini belum tuntas.

 

Kata Kunci: Jurnalis, Konflik, Sunni-Syi’ah Sampang

 

Abstract

Reporting on reporters' coverage of Sara's conflict between Shia Islamic groups and Sunni Islam groups that took place in Sampang Madura, East Java on August 26, 2012 caused one person to die, and six others were injured, and 47 Shiite homes were burnt by groups. attacker. At least 282 Shia residents in Karang Gayam Village, Omben Subdistrict, and Blu'uran Village, Karangpenang District, Sampang had to be evacuated due to the bloody conflict. This study, examines the tendency of the media and local journalists to take sides in different productions, such as the angle of taking engle news, and other factors that influence journalists in presenting different coverage of the coverage. The focus of the study is on local and national online media by taking into account several things, including the depth of information, efforts to restore the rights of Shiite Islamic groups as a group of minors who have been expelled from their homes, and analysis of local media bias in presenting news about the Shiite-Sunni conflict which until now has not been completed.

 

Keywords: Journalists, Conflict, Sunni-Shi’a Sampang
A Radio Source Coincident with the Superluminous Supernova PTF10hgi: Evidence for a Central Engine and an Analog of the Repeating FRB 121102?
Authors: Eftekhari T. , Berger E. , Margalit B. , Blanchard P. K. , Patton L. , Demorest P. , Williams P. K. G. , Chatterjee S. , Cordes J. M. , Lunnan R. , Metzger B. D. , Nicholl M.
Published: April 2019

We present the detection of an unresolved radio source coincident with the position of the Type I superluminous supernova (SLSN) PTF10hgi (z = 0.098) about 7.5 yr post-explosion, with a flux density of F

ν
(6 GHz) ≈ 47.3 μJy and a luminosity of L

ν
(6 GHz) ≈ 1.1 × 1028 erg s−1 Hz−1. This represents the first detection of radio emission coincident with an SLSN on any timescale. We investigate various scenarios for the origin of the radio emission: star formation activity, an active galactic nucleus, and a non-relativistic supernova blastwave. While any of these would be quite novel if confirmed, none appear likely when considered within the context of the other properties of the host galaxy, previous radio observations of SLSNe, and the general population of hydrogen-poor supernovae (SNe). Instead, the radio emission is reminiscent of the quiescent radio source associated with the repeating FRB 121102, which has been argued to be powered by a magnetar born in a SLSN or long gamma-ray burst explosion several decades ago. We show that the properties of the radio source are consistent with a magnetar wind nebula or an off-axis jet, indicating the presence of a central engine. Our directed search for fast radio bursts from the location of PTF10hgi using 40 minutes of Very Large Array phased-array data reveals no detections to a limit of 22 mJy (10σ; 10 ms duration). We outline several follow-up observations that can conclusively establish the origin of the radio emission.
Ophiorrhiza shiqianensis (Rubiaceae), a new species from Guizhou, China
Authors: Duan Lin-Dong , Lin Yun , Lu Zhen
Published: April 2019

A new species of the genus Ophiorrhiza L. (Rubiaceae), Ophiorrhizashiqianensis L.D.Duan & Yun Lin, is described, illustrated and photographed from Shiqian County, Guizhou Province, South-western China. This species was found growing at the side of streams in evergreen broad-leaved forests in mountains at elevations of 960–1100 m. The new species is morphologically similar to Ophiorrhizahunanica H.S.Lo, but differs from the latter by the glabrous, glabrescent or pilose stems, the 5–10 cm long subterranean stem internodes, the glabrous or pilose petioles, the 3–5 mm long stipules, the purple corolla lobes, the ca. 12 mm long style and included stigmas in long-styled flowers and the 3–4 × 8–10 mm, glabrous or glabrescent capsules.
Les pères et la grossesse. Psychopathologie et vie quotidienne
Authors: Bydlowski Sarah
Published: April 2019

L’avènement d’une naissance est un événement d’importance dans la vie d’un homme. Pendant la grossesse de la femme, il s’ouvre à des sensations et à des idées nouvelles qui retentissent sur tout son être. La complexité du travail psychique paternel pendant la grossesse s’apparente à une crise narcissico-objectale, crise identitaire et identificatoire. L’annonce d’une paternité, même si elle constitue un heureux événement, suscite le plus souvent quelques perturbations jusqu’à mobiliser parfois d’intenses angoisses, entraînant des accidents aigus névrotiques graves et psychotiques. Celles-ci dévoilent le vacillement de l’équilibre, la mise à l’épreuve de son fonctionnement psychique et de sa construction, lors de la grossesse de sa compagne.
Le positionnement transférentiel dans l’avènement de la fonction du père
Authors: Lévy Élisabeth
Published: April 2019

La fonction du père doit permettre à l’enfant d’ouvrir son champ d’investissement libidinal en se plaçant dans la triade « mère-père-bébé ». Il ne s’agit pas d’une occupation de place dans le réel mais bien de la place du tiers que la mère et le père auraient dans leur tête, eu égard à leurs imagos parentales, renvoyant à leur propre histoire infantile. Nous tenterons de voir comment lorsque des deuils pathologiques viennent barrer un processus progrédient, le travail du psychanalyste peut venir en aide à la famille, pour qu’un père prenne sa fonction de « césure » dans la relation narcissique originaire, entre mère et enfant. La fonction du thérapeute comme fonction paternelle, pour ouvrir une voie vers une réalité sociale.
Qu’est-ce qu’écrire et lire à l’école ?
Authors: Noble Alain
Published: April 2019

L’écriture et la lecture sont l’aboutissement d’un long processus. Cette trace socialisée interroge l’enfant sur sa position subjective et plus particulièrement sur la question de son rapport à la Loi, l’ordre générationnel. Elle relève plus d’une question de désir d’inscription dans le monde culturel des adultes que d’une affaire de combinatoire. Nous appuyons notre propos par l’analyse de la situation d’un enfant en difficulté avec le langage écrit qui ne résulte pas d’une insuffisance de l’appareil cognitif mais d’un rapport particulier à l’ordre générationnel qui se traduit par des modalités relationnelles incestuelles où la coloration masochique est nette. En réponse à cette caractéristique, avant toutes décisions, les aides devraient consister à soutenir le processus de différenciation dans l’institution apte à relancer le processus de subjectivation de l’enfant.
Le citoyen peut-il se passer de l'homme ? La critique des droits de l'homme de Marx et l'antihumanisme d'Althusser
Authors: Benoit Audrey
Published: April 2019

Dans Zur Judenfrage, Marx critique les droits de l'homme et du citoyen énoncés par les textes constitutionnels français comme instrumentalisation de l'universalité formelle de la citoyenneté, au service des intérêts réels d'une humanité réduite à sa particularité bourgeoise. Pour Althusser, qui juge que la « coupure épistémologique » séparant la préhistoire idéologique de Marx de son accès à la scientificité date de 1845, ce texte de 1843 relève encore de l'idéologie humaniste. Afin de réévaluer la lecture antihumaniste qu'Althusser fait de Marx, on montre que le texte de 1843 est déjà sous-tendu par un antihumanisme épistémologique, qui vise la construction juridique d'une double abstraction : celle du citoyen, comme figure universelle, et celle de l'homme, comme individu naturel. Ce texte témoigne de l'épistémologie politique de Marx. Une révolution problématique est ainsi à l'œuvre, dans la critique sociale de Marx.
Baccalaureate Nursing Students' Perceptions of Learning in Mentored and Simulated Research Practica
Authors: Bird Marissa , Tolan Jesseca , Carter Nancy
Published: April 2019

Background:

A simulated research practicum was developed in our nursing program to increase the number of quality research placements for our students. In order to evaluate the success of this simulation activity, we compared students' experiences in simulated and traditional mentored research placements.

Method:

A convenience sample of baccalaureate nursing students enrolled in an introductory research course in Ontario, Canada, was surveyed. A two-group posttest survey design was used to assess the research activities students experienced and their satisfaction with placements. Data were compared between the traditional mentored research placements (MRP) and simulated research placements (SRP) using descriptive and inferential statistical testing.

Results:

Students in the SRP group had a statistically significant higher level of exposure to several aspects of the research process, although course satisfaction ratings were slightly better in the MRP group.

Conclusion:

The simulated practicum provided our organization with a feasible means of providing high-quality research placements by exposing undergraduate nursing students to several aspects of the research process.

[
J Nurs Educ.
2019;58(5):290–293.]
Establishment of an aqueous method for extracting soybean oils assisted by adding free oil
Authors: Tu J. , Wu W.
Published: April 2019

Concern for the environment, safety and costs has promoted the development of the method for extracting soybean oil by an aqueous process. An advanced aqueous extraction of soybean oil assisted by adding free oil was established in this study, which recovered 81% of the oil from soybeans with 20.73% crude oil content and produced a de-oiled residue with 4.7% residual oil. The acid or peroxide value of the recovered oil met the Chinese national standard for first class refined oil, which was lower than that produced by solvent extraction or high temperature pressing. No wastewater was produced during the aqueous extraction of oil. The removal of the oil by the addition of oil and a small amount of water generated a residue (solids) containing all the protein, which represents 2/3 of the revenue in the soybean process. The protein-rich residue can be further processed to produce a protein isolate with high purity (e.g. > 90%) by using a higher amount of water. It can also be used as a nutritious ingredient or raw material for the production of many food products, among other applications.
Difference between Engineering Program Accreditations at Baccalaureate and Master’s Level: Case Study Based on ABET
Authors: Wang Chuanyi , Cao Yi
Published: April 2019

As the education level of engineering and scientific talentscontinuouslyrise worldwide, the demand for master engineering program accreditation has gradually increased. International engineering programaccreditation organizationsmostly focus on baccalaureate level, less on the master's level and above. In order to construct accreditation system of engineering program at master's level, this study selected ABET, one of the pioneers inaccreditation at the master’s level, as a case study that emphasizes on revealing differences of engineering program accreditations in master's and baccalaureate level. The study found that, compared to the baccalaureate level,the general criteria of master’s level is emphatically featured in curriculum accreditation master’s level general criteria feature curriculum accreditation criteria that lay more emphasison previous course accumulation, professionalism and practicality, assessment review, higher level faculty, and along with facilities focusing more on student-centered concept and requirement for information society.
Geogebra and Grade 9 Learners’ Achievement in Linear Functions
Authors: Mushipe Melody , Ogbonnaya Ugorji Iheanachor
Published: April 2019

Learners’ underachievement in mathematics is one major challenge in South Africa. Reports show that one of the topics that learners struggle with is functions. Many teachers also struggle to teach the topic effectively. The foundation of functions in the school mathematics curriculum is in the senior phase of schooling (Grades 7-9). Functions need to be taught effectively at the foundation level in order to ensure smooth content progression into the higher grades. Several studies globally have advocated the integration of graphing software with the teaching of some topics in mathematics including functions to enhance students’ learning of the topics. This study investigated the effect of in-tegrating GeoGebra with the teaching of linear functions on Grade 9 learners’ achievement. The study was guided by the constructivist theory of learning and followed a pre-test post-test, non-equivalent groups and quasi-experimental de-sign. The participants were 62 learners from two schools in Limpopo South Af-rica. The control group was 29 learners from one school and the experimental group was 33 learners from the second school. GeoGebra was integrated with the teaching in the experimental group while the control group was taught using chalk and talk. Data was collected using an achievement test and analysed using a t-test at 5% level of significance. The results showed that the experimental group (M = 51.76; SD 17.95) achieved statistically higher scores than the control group (M = 20.00, SD 11.16) with a large effect of 0.53. Implications are discussed.
POTENCIAL PEDOLÓGICO DAS TERRAS DO ESTADO DA PARAÍBA PARA O CULTIVO DO FEIJÃO CAUPI (Vigna unguiculata (L.) Walp.)
Authors: Francisco Paulo Roberto Megna , Santos Djail , Santos Fabiana Do Nascimento , Macedo Fabrício Lopes de
Published: April 2019

Este trabalho objetivou classificar e mapear as informações pedológicas das terras do Estado da Paraíba através do cruzamento de planos de informações utilizando o geoprocessamento para identificar áreas favoráveis ao cultivo do feijão caupi. Na metodologia foi utilizada o Zoneamento Agropecuário do Estado da Paraíba e o mapa digital de solos numa base de dados elaborada no software SPRING 5.2.2 onde foi extraída as informações pedológicas dos solos à partir da chave da fórmula básica da classe de capacidade de uso da terra, e elaborada a classificação dos fatores restritivos de salinidade, profundidade efetiva, pedregosidade, fertilidade, erosão, drenabilidade, declividade e textura, e criado no LEGAL, uma linguagem para a classificação do potencial pedológico dos solos sob dois níveis de manejo (B e C), em função do aumento dos fatores limitantes em: muito alto, alto, médio, baixo e muito baixo. Os resultados demonstraram que com as técnicas de geoprocessamento proporcionou resultados satisfatórios na espacialização das áreas de potencial da cultura do feijão caupi. Não foram mapeadas e identificadas áreas com potencial Muito Alto para o manejo B e C devido a maior exigência da cultura do feijão caupi; pequenas áreas com possibilidade do cultivo do feijão caupi não foram mapeadas devido à escala de trabalho utilizada; essa avaliação realizada é independente das condições climáticas e, portanto, não oferece, isoladamente, todos os elementos necessários para exploração sustentada da cultura; as áreas com potencial pedológico para a cultura do feijão caupi aumenta consideravelmente com a adoção do manejo C; o maior potencial pedológico para a cultura do feijão caupi das terras do Estado da Paraíba apresenta-se em  áreas constituídas de Argissolos e Latossolos; e em menor potencial em Neossolos Litólicos e Luvissolos.
O JOGO CONTINUA: O LEGADO PÓS-COPA DO MUNDO DE 2014 EM PORTO ALEGRE - RS
Authors: Schatz Patrícia Volk , Espíndola Carlos José
Published: April 2019

Este artigo visa investigar os legados resultantes da XX Copa do Mundo de Futebol para a cidade-sede de Porto Alegre (RS). O Brasil inseriu-se no circuito mundial de megaeventos esportivos, por meio da Copa de 2014 e das Olímpiadas de 2016, com uma série de discursos de promoção nacional e de possíveis ganhos econômicos. A Seleção nacional malogrou na tarefa de conquistar um novo título, porém as melhorias em infraestrutura, os lucros em turismo e comércio, e as modernas arenas poliesportivas permanecem nos debates como os ganhos significativos da Copa do Mundo para o Brasil. Logo, torna-se importante discutir como Porto Alegre, sede de cinco jogos do mundial, recebeu o megaevento e quais foram os legados alcançados. O texto, baseado em levantamento bibliográfico e coleta de dados, mostra a preparação do Brasil e da cidade de Porto Alegre para a Copa do Mundo de Futebol. A pesquisa também mostra os investimentos em infraestrutura realizados na capital rio-grandense-do-sul e o comportamento de alguns setores, como comércio e hotelaria, durante o mundial de 2014.
Binary Adsorption of Two Textile Dyes onto Diatomite: Kinetic and Isotherm Study
Authors: Aguedal Hakim , Merouani Djilali Redha , Iddou Abdelkader
Published: April 2019

Nowadays, many studies focus only on the removal of dyes from water in single solution. In real applications the colored effluents contain more than one component to eliminate. In this study, the adsorption of two textile dyes – Red Bemacid-ETL (RB-ETL) and Bezaktiv Turquoise Blue-VG (BTB-VG) – was investigated in a binary mixture. The derivative spectrophotometry was used to determine the specific wavelength for each dye. The effect of pH, contact time and initial dye concentrations was considered. The results show that diatomite has a good potential to eliminate both of dyes simultaneously. The competitive statistical rate theory model fits the adsorption kinetic data of the binary system well. The adsorption isotherm data for both dyes is well described by multicomponent Langmuir isotherm model. A high competition effect was observed, but BTB-VG dye was more selectively adsorbed by heat treated diatomite than RB-ETL dye.
Removal of Heavy Metals Cd(II) and Al(III) from Aqueous Solutions by an Eco-Friendly Biosorbent
Authors: Larbi Nour El Houda , Merouani Djilali Redha , Aguedal Hakim , Iddou Abdelkader , Khelifa Amine
Published: April 2019

Heavy metals are very toxic water pollutant. Their presence not only affect human beings but also animals and vegetation because of their mobility in aqueous ecosystem, toxicity and non-biodegradability [1].in the aim of removing heavy metals from aqueous solutions, an eco-friendly biosorbent was prepared from lagoon sludge by a humification process. The biosorption of Cd2+ and Al3+ ions from aqueous solutions was investigated as a function of initial pH,contact time, initial metal ions concentration, and temperature. Langmuir and Freundlich models were used to determine the sorption isotherm. Optimum pH for the removal of cadmium and aluminum was found respectively to be around 6 and 4 [2] . The equilibrium was obtained in 60 min with the pseudo-second-order kinetic model. The Langmuir model was a better fit with the experimental data for both cadmium and aluminum adsorption with a regression coefficient up to 0.99 and Qmax of 100 and 142 mg.g-1 respectively for Cd2+and Al3+.
Mechanical and Thermal Properties of Ternary System Based on Starch-Grafted-Polyethylene/High Density Polyethylene/Halloysite Nanocomposites
Authors: Fermas Walid , Kaci Mustapha , Merijs Meri Remo , Zicans Janis
Published: April 2019

In this paper, the effect of unmodified halloysite nanotubes (HNTs) content on the chemical structure and the thermal and mechanical properties of blends based on starch-grafted-polyethylene (SgP) and high density polyethylene (HDPE) (70/30 w/w) nanocomposites was investigated at various filler content ratios, i.e. 1.5, 3 and 5 wt.%. The study showed the occurrence of chemical interactions between the polymer matrix and HNTs through OH bonding. Further, the addition of HNTs to the polymer blend led to an increase in the crystallization temperature of the nanocomposite samples, in particular at higher filler contents i.e. 3 and 5 wt.%, while the melting temperature remained almost unchanged. Tensile and flexural properties of the nanocomposite samples were however improved compared to the virgin blend with respect to the HNTs content ratio.
Water Related Properties of Birch Wood Modified with Phenol-Formaldehyde (PF) Resins
Authors: Grinins Juris , Biziks Vladimirs , Irbe Ilze , Rizhikovs Janis
Published: April 2019

In this study, Silver birch (Betula pendula) wood veneers and solid wood blocks were treated with commercial phenol-formaldehyde (PF) resin water solutions. Birch veneers and solid wood blocks of different size were impregnated with PF resin solutions in water with concentrations of 10, 20 and 30 wt%. The weight percent gain (WPG) and bulking after drying and curing of resin treated wood specimens were determined to evaluate the impact of specimen sizes and density. The leaching procedure according to EN 84 was performed to evaluate the PF resin fixation stability. The anti-swelling efficiency (ASE) of untreated and treated specimens during seven soaking-drying cycles was examined. Higher WPG values were obtained for specimens with lower density, but no correlation was found between the specimen size and WPG. The WPG of veneers and solid wood was 8.7 - 17.7% and 8.5 - 24.4%, respectively. The ASE of wood blocks treated with PF resins after the 1st cycle was in the range of 37 - 51% depending on the resin loading in the wood. However, the ASE values decreased after every next soaking-drying cycle, reaching 33 - 48% after the 7th cycle. After leaching, the WPG of specimens decreased by 2.3 - 3.0%.
Synthesis of Phenyl Ring Substituted 4-Aryl-3,4-Dihydrocoumarines
Authors: Leitis Zigmārs
Published: April 2019

Asymmetric induction caused by 4-substituted oxazolidin-2-one type auxiliaries in reactions of N-cinnamoyloxazolidinones with phenylmagnesium bromide in the presence of CuBr×SMe2 catalyst were examined. Resulted 3,3-diarypropionic acid derivatives were converted into 6-hydroxy-4-phenyldihydrocoumarine via demethylation and subsequent pyrane ring closure. Hydroarylation of N-cinnamoyloxazolidinones with 1,3,5-trimethoxybenzene was performed affording 3,3-diarypropionic acid derivatives.
Comparison of Different Classical and Instrumental Analysis Methods for Precise Quantification of Calcium and Phosphorous Ratio in Hydroxyapatite
Authors: Grebnevs Vladlens , Busa Lauma , Pluduma Liene , Viksna Arturs , Gross Karlis Agris
Published: April 2019

The largest comparison of analytical techniques, useful for calcium phosphates, has been conducted, presenting recommendations for quality control and research of calcium phosphates. Results from three classical quantification methods (gravimetry, titramety, photometry) and three instrumental measurement methods (XRF, FAAS ICP-OES) are reported to determine the most accurate, fastest and cheapest analysis method. Remarks are given for increasing the accuracy for each method and corrections made for adsorbed water. For routine analysis, a recommendation is given to ICP-OES for a fast analysis, together with a less frequent use of gravimetry to validate the results and provide a periodic cross-check.
Total Phenolic, Antioxidant Activities and Flavonoid Contents of Herbal Syrups
Authors: Dimiņš Fredijs , Augšpole Ingrīda
Published: April 2019

The aim of the study was to characterize antioxidative properties and antiradical activity of the herbal syrups collection in Latvia. Spectrophotometry was used to characterize antioxidant properties of herbal syrups. Antiradical activity, total phenols and content of flavonoids were determined spectrophotometrically. The antiradical scavenging activity was measured by the DPPH (2.2-diphenyl-1-picrylhydrazyl) reaction. The herbal syrups antiradical scavenging activity was estimated by the amount of DPPH of reagent using in reaction with a sample of vegetable syrup (in percent) and by Trolox equivalent. The total phenolic compounds were determined by using the Folin – Ciocalteu method. The total phenolic content was expressed in mg of the gallic acid equivalents. The content of flavonoids was determined by using reaction between the AlCl3 and flavonoids. Antiradical scavenging activity by Trolox equivalent of the herbal syrups was found from 81 to be 130 mg 100 g-1 herbal syrups. The content of total phenols was found from 22 to be 282 mg GAE 100 g-1, but content of total flavonoids by quercetin equivalent was found from 1 to 44 mg QE 100 g-1. In case of increased disease problems, syrups with increased antioxidant content should be used. However, the specificity of each disease should be taken into account as well as the content of certain compounds in the plants.
Evaluation of Aspects Controlling Crystallization of Nitrofurantoin
Authors: Trimdale Aija , Bērziņš Agris
Published: April 2019

Nitrofurantoin was crystallized from multiple mixtures of water and organic solvents with and without additives to try to find and identify factors affecting phase obtained in crystallization and provide possible information on crystallization control. Obtained crystals were identified with powder X-ray diffractometry. Crystallization control possibilities were evaluated by using polymer additives and crystallization additives, by also using quantum chemical calculations to investigate the association of nitrofurantoin and additive molecules and calculate Gibbs energy of association.
The influence of social media service quality on client loyalty in the South African banking industry
Authors: Gavaza Bramwell K. , Viljoen Kim L. , Cilliers Liezel
Published: April 2019

Orientation: The impact and growth rates of Facebook and other forms of social media have made it imperative for all businesses to ensure they have social media strategies in place.Research purpose: The purpose of this study was to measure the influence of social media service quality on client loyalty in the South African banking industry.Motivation for the study: There are limited studies conducted in developing countries such as South Africa that focused specifically on the social media service quality and client loyalty in the banking industry.Research design, approach and method: The study used a quantitative approach and a descriptive research design to test the proposed hypotheses. An online survey on Facebook was used to collect the data from a sample of 377 respondents who had interacted with the five major banks in South Africa on the said platform. A snowball sampling technique was used to identify the appropriate respondents. The data was analysed with Structural Equation Modelling (SEM) to assess the model fit.Main findings: Findings of the research study proved that the social media system’s availability, fulfilment and privacy have a significant influence on the overall service quality of social media, which leads to client loyalty in the South African banking industry.Practical/managerial implications: The study recommended that managers and marketers should constantly evaluate, monitor and improve the overall service quality of social media offered to their clients, as it leads to a corresponding increase in client loyalty in the South African banking industry.Contribution/value-add: The study provided empirical evidence, which contributed to the body of business and marketing knowledge in a South African banking context.
Drug-induced infiltrative lung disease with weekly paclitaxel in breast cancer
Authors: Raghupathi Renu , Patil Channappa , Dhiman Pravesh
Published: April 2019

Drug-induced infiltrative lung disease (DI-ILD) can be caused by chemotherapeutic agents, antibiotics, antiarrhythmic drugs, and immunosuppressive agents. Common chemotherapeutic drugs causing DI-ILD include bleomycin, mitomycin C, bis (2-chloroethyl)-l-nitrosourea, cyclophosphamide, busulfan, and methotrexate. Taxanes and trastuzumab are also associated with lung injury. Estimated incidence of paclitaxel-induced lung injury is 0.73%–12%. Although cases of paclitaxel-induced lung injury have been reported previously, we found only one published case report of fatal lung injury caused by paclitaxel use. We are reporting the largest case series of seven patients who developed paclitaxel-induced lung injury along with review of literature.
Zinc oxide nanofluids
Authors: Azhdari Afsaneh , Jalal Razieh
Published: April 2019

Aim:

The combination of phototherapy and chemotherapy (chemophototherapy), presents a promising multimodal method for comprehensive cancer treatment. The aim of this study is to investigate the influence of low doses of zinc oxide (ZnO) nanofluids and ultraviolet A (UVA) irradiation on the cytotoxicity and cellular uptake of doxorubicin (DOX) on human prostate cancer DU145 cells.

Materials and Methods:

ZnO nanoparticles were prepared by the solvothermal method and 10% bovine serum albumin was used as the dispersant. The cytotoxic effect of DOX alone and in combination with different concentrations of ZnO nanofluids (0.95-15.6 μg/ml) in the presence and absence of UVA irradiation on DU145 cells was evaluated by -(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. DOX residue inside and outside of DU145 cells was explored by fluorescence microscopy and UV-Vis absorption spectroscopy, respectively. The role of ZnO nanofluids and UVA irradiation in DOX-induced apoptosis and cell cycle arrest were evaluated by DAPI staining, comet assay, and flow cytometry.

Results:

The results revealed that low dose of ZnO nanofluids (0.95 μg/ml) accompanied with irradiation enhanced the cytotoxicity and intracellular delivery of DOX in DU145 cells. The percentage of chromatin fragmentation/condensation and DNA tail of DU145 cells treated simultaneously with DOX and ZnO nanofluids was increased after UVA irradiation, whereas no significant changes in cell cycle progression were observed.

Conclusion:

The results indicate that ZnO nanofluids in the presence of UVA irradiation could increase DOX efficiency in DU145 cells, suggesting such modality combinations as a promising approach in cancer treatment.
El relieve en fachadas de hormigón visto como trabajo colaborativo entre arquitectos y artistas plásticos
Authors: Fernández-Morales Angélica
Published: April 2019

El artículo trata sobre la intervención artística en edificios de hormigón visto en forma de relieves en la fachada. Como constante a lo largo de la historia, la arquitectura ha servido de soporte de pinturas y esculturas en sus paramentos. Con la incorporación del hormigón visto a la arquitectura, sus posibilidades plásticas y artísticas en las fachadas también fueron exploradas por arquitectos y artistas, en especial desde la segunda mitad del siglo XX, tomando en algunos casos la forma de relieves escultóricos. El siglo XXI nos ha proporcionado algunos interesantes ejemplos de ese formato artístico, para cuya realización ha sido necesaria la colaboración entre artistas y arquitectos. Se presentan aquí tres de ellos: el mural de Helmut Federle en la Embajada Suiza en Berlín, en colaboración con Roger Diener; los relieves de Rémy Zaugg en el Centro de Justicia de Aquisgrán, de Weinmiller Architekten; y el de Esther Pizarro en el Palacio de Congresos de Mérida, de Nieto Sobejano. En los tres casos, las técnicas empleadas en la ejecución del hormigón fueron especiales para atender los requerimientos estéticos de las intervenciones artísticas, y el resultado define decisivamente la imagen exterior del edificio.