bluuebunny/crossref_metadata_2025 huggingface dataset:
Senior High School Students’ Ability in Posing System of Linear Equations in Two Variables Problems
Authors: Rachmawati Yemima Indah , Sugandi Eko , Prayitno Lydia Lia
Published: March 2019

Problem posing is a learning approach that trains students to be able to process and communicate mathematical problems based on information obtained. This study aims to describe the ability of high school students to pose problems on the topic of system of linear equations in two variables (SLETV). This study used a quantitative descriptive study involving 60 high school students in the East Surabaya area. The results showed that students were able to submit 60 problems, consisting of 54 problems can be categorized and 6 problems could not be categorized. Based on the semantic structure of mathematics, 17 students (31.48%) were able to pose problems using 1-relationship, 13 students (24.07%) were able to pose problems using 2-relationships, 13 students (24.07%) were able to raise problems using 3-relationships, and 11 students (20.37%) were able to pose problems using 4-relationships. Based on language structure (syntax), 13 students (24.07%) were able to pose problems using assignment propositions, as many as 17 students (31.48%) were able to pose problems using relationship propositions, and 14 students (25.93%) were able pose a problem using a presupposition proposition.
Mathematical Communication Characteristics of Pre-Service Primary School Teacher in Explaining the Area of Trapezoid Reviewed from School Origin
Authors: Abidin Zainal
Published: March 2019

Abstract. This study aims to know the characteristics of mathematical communication of pre-service primary school teachers. The material used as the object of research is geometry. It requires the ability of algebra and spatial skills. The area of trapezoid is selected as the topic since it is perceived as the most complex of all plane shapes studied in primary school. It is because the calculation of the area of trapezoid entails three variables. The ability of mathematical communication involves the ability to write and explain. This ability is examined based on the background of students’ secondary school. The subjects of this study were 15 students of Primary Teacher Education, STKIP Al Hikmah Surabaya in academic year 2017-2018. The types of mathematical communication are grouped according to their characteristics. Written communication is sharpened by oral communication. The results were analyzed to investigate the relevance of such abilities with the subjects’ background of their secondary school (SMA, SMK, or MA). The results indicate that the characteristics of written communication consist of: (1) narrative, (2) procedure, and (3) dialogue. Meanwhile, the characteristics of oral communication consist of: (1) lecture, (2) instructional, and (3) discussion. Pre-service teachers graduated from SMA have better mathematical communication skills than those from SMK and MA. Keywords: Pre-service primary school teacher, mathematical communication, the area of trapezoid.
ANALISIS RESTRUKTURISASI DALAM MENINGKATKAN KUALITAS PELAYANAN PUBLIK PADA KANTOR PERTANAHAN KABUPATEN BANDUNG BARAT
Authors: Soeardi Eden Komarudin
Published: March 2019

Masalah dalam penelitian ini yaitu rendahnya kualitas pelayanan publik pada Kantor Pertanahan Kabupaten Bandung Barat disebabkan belum efektifnya restrukturisasi organisasi. Penelitian ini mengidentifikasi masalah: penelitian ini, sebagai berikut: 1. Berapa besar pengaruh restrukturisasi organisasi terhadap Kualitas Pelayanan Publik Pada Kantor Pertanahan Kabupaten Bandung Barat. 2. Bagaimana restrukturisasi organisasi mampu meningkatkan kualitas pelayanan publik pada Kantor Pertanahan Kabupaten Bandung Barat. Metode yang digunakan dalam penelitian ini adalah survey deskriptif analisis. Adapun metode yang digunakan dalam penelitian ini adalah metode eksplanatoris, yaitu menyoroti pengaruh antara variabel-variabel penelitian dan menguji hipotesissecara simultan dan secara parsial. Berdasarkan hasil perhitungan koefisien determinasi diperoleh besar pengaruh variable restrukturisasi organisasi terhadap kualitas pelayanan publik pada Kantor Pertanahan Kabupaten Bandung Barat sebesar 71,73%. Berdasarkan hasil perhitungan tersebut diperoleh hasil bahwa pengaruh variabel restrukturisasi organisasi berpengaruh cukup kuat terhadap kualitas pelayanan publik. Secara Parsial, pengaruh Kompleksitas sebesar 40.16%. Formalitassebesar 10.32% dan Sentralisasisebesar 21.19% terhadap kualitas pelayanan publik pada Kantor Pertanahan Kabupaten Bandung Barat.
KAPABILITAS DINAMIS DALAM KEPEMIMPINAN
Authors: Muslim Muhammad Azis
Published: March 2019

Perubahan lingkungan yang sedemikian pesat (disruptive era) menuntutrespon yang cepat dan tepat oleh pemimpin dalam setiap organisasi. Perubahan tersebut tidak saja dialami oleh sector privat yang biasanya cenderung lebih adaptif dengan kondisi yang ada, namun juga sector public yang saat ini memilik tuntutan yang sama dari masyrakat. Bupati Dedi Mulyadi dalam kepemimpinannya disebut-sebut membawa perubahan yang lebih baik untuk Kabupaten Purwakartadengan berbagai kontroversinya.Tidak sedikit kebijakan yang dibuat menimbulkan pro kontra di berbagai lapisan masyarakat. Berdasarkan kondisi factual tersebut, penelitian ini bertujuan untuk menganalisisKapabilitas Dinamis Kepemimpinan Bupati Dedi Mulyadi. Penelitian ini menggunakanteori kapabilitas dinamis dalam dynamic governance yang dikemukakan oleh Neo Boon Shiong dan Geraldine Chen. Penelitian ini menggunakan paradigma post-positivist dan pengumpulan data melalui wawancara mendalam dan studi literatur. Hasil penelitian menunjukkan bahwa kepemimpinan yang dilakukan oleh Dedi Mulyadi ini telah memiliki kapabilitas dinamis dalam menjalankan pemerintahannya. Kendati demikian, kapabilitas dinamis yang dimiliki ini belum sepenuhnya terpenuhi, masihterdapat beberapa dimensi yang tidak terpenuhi dan beberapa masalah dalam pelaksanannya.
Desafios atuais dos laboratórios de saúde pública frente às novas exigências regulatórias
Authors: Markman Blanca Elena Ortega , Hilinski Ellen Gameiro , Farias Fernanda Fernandes
Published: March 2019

RESUMOO avanço regulatório, observado no mercado farmacêutico brasileiro nas últimas décadas, representa um impacto positivo para a população, na medida em que passa a dispor de medicamentos com melhores perfis de segurança e eficácia, reduzindo e prevenindo o risco inerente às propriedades farmacológicas e toxicológicas dos fármacos. Este estudo visa atualizar o panorama da qualidade de medicamentos no Brasil e os desafios enfrentados pelos laboratórios de saúde pública para a condução dos ensaios analíticos de monitoramento da qualidade. Com o incremento do lançamento de novas tecnologias farmacêuticas, como os biofármacos, e a publicação de nova regulamentação, como a RDC 53/2015, o atendimento às novas exigências dos órgãos regulatórios impõem desafios complexos para os laboratórios oficiais.  A notificação, identificação e qualificação de produtos de degradação em medicamentos com substâncias ativas sintéticas e semissintéticas, bem como a análise do polimorfismo e de fármacos quirais, são alguns dos exemplos que demandam o desenvolvimento e validação de técnicas analíticas com maior seletividade e complexidade. Para efetivar este avanço torna-se essencial a utilização de equipamentos robustos e modernos, assim como a capacitação do corpo analítico nos laboratórios de saúde pública. Palavras-chave: monitoramento da qualidade, medicamentos, laboratório de saúde pública, regulamentação. ABSTRACTThe regulatory improvement observed in the Brazilian pharmaceutical market on the last decades represents a positive impact for the population which now has medicines with better safety and efficacy profiles, reducing and preventing the inherent risk in the pharmacological and toxicological drug properties. This study aims to update the scenery of the quality of medicines in Brazil and the challenges faced by public health laboratories to conduct the analytical tests to quality assurance. With the increase in the launching of new pharmaceutical technologies, such as biopharmaceuticals and the publication of new regulations, such as RDC 53/2015, meet the new regulatory requirements imposes complex challenges for official laboratories. The notification, identification and qualification of degradation products in pharmaceutical products with synthetic and semisynthetic active substances, as well the analysis of polymorphism and chiral drugs are some of the examples that demand the development and validation of analytical techniques with greater selectivity and complexity. To achieve this advance, the use of robust and modern equipment is essential, as well as the training of the analytical group in the public health laboratories. Keywords: quality monitoring, medicines, public health laboratory, regulation
Apokatopinen maailmanmaisema: Paratiisin ikonografia ja satelliittiperspektiivi Petri Ala- Maunuksen 2000-luvun öljyvärimaalauksissa
Authors: Roivainen Hilja
Published: March 2019

Petri Ala-Maunus kuvaa 2000-luvun maalauksissaan utooppisia eli hyvää ei-paikkaa esittäviä maisemia apokalyptisin sävyin. Analysoin artikkelissa maalauksissa havaittavaa maailmanmaiseman (Weltlandschaft) kuvatyyppiä ja paratiisimaiseman ikonografiaa. Kuva-aiheet punoutuvat niin nykymaailman muotoutumiseen vaikuttaneeseen eurooppalaisen kolonialismin historiaan kuin 2000-luvun satelliittiperspektiiviin.
A Comparative Inquiry into The Bhagwad Gita and Confucian Ethical Dimensions
Authors: Tripathi Prof. Shubhra
Published: March 2019

Two ancient and culturally rich civilizations, India and China, are in the process of shaping a new economic order in South Asia. Centuries of harmonious cultural and trade interactions have been interspersed with periods of diplomatic and political distrust.  However, in the era of digitalization and globalization, economic ties between the two seem to be strengthening steadily. The Indian market is replete with “Made in China” and the international media has “Make in India” splashed all over. Now, it looks like both sides are willing to set aside the political issues in order to improve economic ties. In 2013, the Chinese premier Li Keqiang, chose India as his first overseas stop. Similarly, the visits of President Narendra Modi and President Xi Jinping to each other’s home towns were strong and bold steps in soft diplomacy. In all these diplomatic visits, shared cultural links were referred to profusely, with a view to promoting national ties. In this context, this paper examines the ethics of Confucius and those enshrined in the Hindu treatise Bhagwad Gita, to promote a harmonious economic ambience and strengthen national bonds for mutual benefit.
Error Analysis for English Language Teachingat Primary Level
Authors: Sharma Dr.  Shreeja , Tripathi Prof. Shubhra
Published: March 2019

The prime concern of every language teacher, and to some extent every linguist, is to device pedagogical methods and strategies which facilitate language acquisition. The concern of any teacher or applied linguist is, though not explicitly stated anywhere, to equip the learners with “correct” features of the language being learnt. Emphasis on “correctness” is due to the presumption that erroneous structures or deviations from linguistic code will lead to incomprehensibility and impediment in communication.As a result of such convictionsContrastive Analysis (CA) and Error Analysis (EA) focussed their attention on “correct” grammatical, lexical and syntactical features of Target Language (TL), in this case English.Both  Contrastive Analysts and Error Analysts analysed the language and tried to predict areas of ease or difficulty. This was often achieved with ‘some’ degree of success. However, in the present socio-educational milieu of Indian schools, where English language teaching is a significant stake, insights from CA and EA, particularly the latter, are either not taken into cognizance, or found inadequate. CA is taken into consideration, though obliquely, indirectly and cursorily, where English language is taught resorting to bilingualism. EA is usually ignored completely. Even when teachers correct students’ assignments and copies, they point out mistakes/errors, suggest corrections, but neither take into account why these mistakes/errors have occurred, nor how to prevent such cases in future. With the ever growing importance of English as a global language and a second language in India, no stakeholder in education can afford to undermine the significance of ELT.The time is therefore ripe to take a fresh look at Error Analysis (EA) and assess how it can be deployed as a powerful tool in school teaching.
Construction coefficient in the settlements of Gllogoc Municipality (Republic of Kosova)
Authors: Çela Tomor , Ramadani Ibrahim
Published: March 2019

This paper evaluates the built area within “cadastral zones” (subdivisions of municipalities) in order to identify the expansion tendencies of settlements, with the aim of contributing to preventing future uncontrolled developments. Demographic growth always needs more construction so it is important to provide a spatial analysis of land use. The paper is focused on the expansion dynamics of built areas within cadastral zones due to rapid social and economic changes. The lack of researches for the Drenica region has affected land use, which has been unplanned and not-to-standard, and has not preserved agricultural land. In the last two decades – since 1999 – there has been considerable growth in the construction sector across all of Kosovo. Although, according to the spatial plan, property owners have the right to develop and use their own property in their own best interests, these regulations do not give them the right to work outside the legal framework of the local plan itself. Land use should be in full compliance with spatial plans, both national and local. This study will contribute to the sustainable urbanisation of settlements and preservation of agricultural land. The results of the study will also help to make important decisions for built areas, in also providing necessary recommendations for steps to be taken to have a land use based on common interests.
The extraction process and seed quality of silver fir conesAbies albaMill.
Authors: Aniszewska Monika , Brzózko Jacek , Zychowicz Witold
Published: March 2019

Fir conesAbies albaMill. are not as extensively described in the literature as cones of other species, and therefore, there is no description of the changes in water content and their dynamics during the extraction process. Developing a mathematical model describing these changes based on cone parameters and air temperature is a step forward in determining the optimal conditions for the extraction process. here, we present such a model derived using fresh cones collected in a seed production stand in the Zwoleń Forest District (RDSF Radom). For 120 randomly chosen cones, the length and the largest diameter of the cone were measured, using the Multiscan program. in addition, for 60 randomly selected cones, the diameter was measured along the entire length of the cone at 10 mm intervals. this allowed us to generate cone models approximating rotational solids for which the outer surface area was calculated using a fourth degree polynomial function and the obtained area was then used to determine cone volume. to facilitate the generalization of surface area and volume calculations to other cones, theks1andks2coefficients were derived, which simplified the employed formulas without significantly affecting accuracy.

Analogous analyses were also performed for cone stems, which allowed the process of seed extraction from cones to be described by mathematical equations. The stem of the cone was found to constitute 2.6% of its volume and 4% of its dry mass. An exponential equation was used to describe the change in cone mass during the seed extraction process, in which the parameters are the initial and final water content of the cone and power factorb, which is a function of cone thickness. The energy content and germination rate for the extracted seeds were determined 14 and 28 days after sowing. The seeds obtained in the investigated extraction process did not reach first grade quality.
Exposure tests of copper foils in a slurries of different bentonites
Authors: Stoulil J. , Kouřil M. , Dobrev D.
Published: March 2019

The goal of the study was to compare corrosion performance of copper in different bentonite slurries. Copper coil samples were exposed in a slurries of bentonites BaM, Rokle, B75, G2M, Voltex, Sabenil. The test was carried out under anaerobic conditions in glovebox at laboratory temperature for duration of one to four months. Samples were evaluated by means of X-ray diffraction and mass loss. Liquid parts of slurries were analysed by ion chromatography and pH meter. The resistance of copper in all studied bentonites was very high. Corrosion rates were in order of tenths of micrometers per year. No trend between pore solution composition and corrosion rate or composition of corrosion products was observed.
Inhibition efficiency of sodium salts of carboxylic acids on corrosion of lead in archive environment
Authors: Strachotová K. C. , Kouřil M. , Kuchťáková K. , Msallamová Š.
Published: March 2019

Lead in archive environment suffers from severe corrosion attack caused by the organic acids’ vapours usually presented in such an environment. One of possible ways of corrosion protection of lead is its surface treatment by solutions of sodium salts of monocarboxylic acids (general formula CH3(CH2)n-2COONa, noted NaCn, n = 10, 11, 12). The principle of this corrosion protection is a creation of conversion coating on the lead’s surface, which decreases corrosion rate of lead in the atmospheric environment polluted by organic acids’ vapour. Our research aims at the selection of a suitable protection system that would be applicable to conservation of historical lead in archives and museums. This paper evaluates the corrosion behaviour of treated lead based on the values of polarisation resistance and shape of potentiodynamic curves in simulated corrosive environment (0.01 mol l−1 solution of acetic acid). The lead samples with different state of surface (pure, corroded and electrochemically cleaned) were treated with sodium salts of monocarboxylic acids NaCn (n = 10, 11, 12) having concentration of 0.01 and 0.05 mol l−1. In simulated corrosive atmosphere (above 0.001 mol l−1 acetic acid solution vapours), corrosion rate was measured by means of electrical resistance technique. The inhibition efficiency of monocarboxylic acids is dependent on their carbon chain length and their concentration. The greatest inhibiting efficiency in corrosive atmospheres and for all lead samples was observed for the sodium salt of dodecanoic acid having concentration of 0.05 mol l−1. Artificially created corrosion products and salt coatings were analysed by X-ray diffraction analysis and their surface morphology was observed by scanning electron microscopy. A protective salt coatings are mainly composed of metallic soaps in dimer form.
Ethylcellulose as a coating material in controlled-release fertilizers
Authors: Lubkowski Krzysztof , Smorowska Aleksandra , Sawicka Marta , Wróblewska Elwira , Dzienisz Alicja , Kowalska Małgorzata , Sadłowski Marcin
Published: March 2019

Ethylcellulose polymer was used as a coating material in the preparation of controlled release fertilizers. The materials have been prepared with the use of an immersion method. The mass ratio of polymer to fertilizer was in the range of 0.165–0.285 and the layer thickness was in the range of 204–244 μm. Mechanical properties of the prepared materials were significantly better in comparison with the initial fertilizer. Measurements of time and the degree of release of mineral components from the obtained materials were determined with a standard method. Ethylcellulose-coated materials have met the requirements of controlled release fertilizers.
Knowledge creation in small building and construction firms
Authors: Durst Susanne , Edvardsson Ingi Runar , Bruns Guido
Published: March 2019

Studies on knowledge creation are limited in general, and there is a particular shortage of research on the topic in small and medium-sized enterprises (SMEs). Given the importance of SMEs for the economy and the vital role of knowledge creation in innovation, this situation is unsatisfactory. Accordingly, the purpose of our study is to increase our understanding of how SMEs create new knowledge. Data are obtained through semi-structured interviews with ten managing directors of German SMEs operating in the building and construction industry. The findings demonstrate the influence of external knowledge sources on knowledge creation activities. Even though the managing directors take advantage of different external knowledge sources, they seem to put an emphasis on informed knowledge sources. The study´s findings advance the limited body of knowledge regarding knowledge creation in SMEs.
R&D Cooperation with External Partners and Implementing Open Innovation
Authors: Podmetina Daria , Smirnova Maria
Published: March 2019

This paper addresses the role of R&D cooperation with external partners in companies implementing inbound and outbound open innovation. The results of the survey of 206 companies show that the cooperation with external partners is different in companies implementing inbound, outbound, and coupled open innovation compared to closed companies oriented towards internal R&D. Increased importance, success, and intensity of cooperation with external partners are observed for companies with internal R&D and inbound, outbound, and coupled open innovation compared to other firms. The more a company implements open innovation, the higher the intensity, importance, and success of cooperation with external partners are. The importance and success of cooperation with domestic partners is higher than for cooperation with foreign partners for all types of companies.
Dynamic socio-economic disequilibrium catalyzed by the Internet of Things
Authors: Datta Shoumen Palit Austin
Published: March 2019

The technology based conceptualization of the internet of things (IoT) and the industrial internet may have started circa 1988 with the work of Mark Weiser of Xerox Palo Alto Research Center who suggested that computers may “weave themselves into the fabric of everyday life” and influence the future of business, as a consequence (Scientific American, 1991). The knowledge base Weiser was referring to is the discussion by Herbert Simon in his 1987 paper “The Steam Engine and the Computer: What makes technology revolutionary” where Herbert Simon frames his thoughts about the computer, “you have to make friends with it, talk to it, let it talk to you.” (...)
The culture of design thinking for innovation
Authors: Prud'homme van Reine Peter
Published: March 2019

Design thinking has been adopted widely as a tool for innovation by companies and other organizations. However, statements by researchers and practitioners about what design thinking is are often seemingly conflicting with each other. This paper aims to improve our understanding of what design thinking for innovation is and under which conditions it can be implemented successfully. It discusses design thinking for innovation in the broader perspective of organizational culture. A framework of nine innovation culture dilemmas or ‘tensions’ is used as an organizing device to analyse the existing literature on design thinking for innovation and accounts of using design thinking for innovation in practice. It is argued that the power of design thinking is in the tension between seemingly opposite ways of thinking, such as analytic thinking versus intuitive thinking, and linear thinking versus thinking in iterative processes. For design thinking to flourish, it needs to be embedded in an organizational culture capable of maintaining a dynamic balance on a number of fundamental tensions in innovation processes. It is shown that the innovation dilemmas framework can be used as an analytical tool to evaluate to what extent organizations are equipped to benefit from design thinking for innovation.
The Tourist and the Traveller: Embracing the Paradoxes of Innovation
Authors: Mention Anne-Laure , Pinto Ferreira João José , Torkkeli Marko
Published: March 2019

Have you ever been a tourist or a traveller? How did you plan that? What experiences did you collect? Ask a tourist and they will tell you that it is all about maximising time and money – see as many things as possible, take a picture and move on. Ask a traveller and they will tell you all about the hidden secrets of the land, how they felt when they met “that person” and how the experience has changed their worldview. So, question for the budding globe trotter is – what would you rather have – efficient quick wins or productive shifts in mindset? Maybe the plan is to have both at the same time and if so, you share similar sentiments to those who are either contemplating or already are on the journey of innovation. Yes, innovation is a journey in which destinations are often temporary. Where, journey is that of collecting knowledge and learning from experiences and destinations are the ‘photo-opportunities’, the time to sharpen up, go-to-market and get smarter. Destinations are temporary as the quest to get to the ‘next best thing’ keeps the senses active.  Scholars in innovation call this the circular path of innovation: research-development-commercialisation-feedback-reflection (and repeat). (...)
PREGLED RASPOLOŽIVIH SOFTVERA ZA SOLARNE ELEKTRANE
Authors: Gavrilović Andrea , Katić Vladimir
Published: March 2019

U ovom radu je dat pregled i opisan rad u raspoloživim fotonaponskim softverima. U cilju nastavka prethodnih istraživanja na temu komparacije fotonaponskih softvera zadate su njihove karakteristike na osnovu kojih je po datim kriterijumima izvršena komparacija. Zatim je urađena simulacija u softveru koji se pokazao kao softver sa najvećim dijapazonom opcija.
RAZVOJ APLIKACIJE ZA TRENUTNU RAZMENU PORUKA NA ANDROID SISTEMIMA U PROGRAMSKOM JEZIKU KOTLIN
Authors: Škrbić Nikola
Published: March 2019

U radu je predstavljena implementacija aplikacije za trenutnu razmenu poruka u realnom vremenu. Takođe rad opisuje i korišćenje Kotlin programoskog jezika na Android platformi kao i praktičnu primenu same aplikacije. Sama implementacija i način funkcionisanja su takođe detaljnije opisani kroz poglavlja kako bi se dočarala kompletna slika sistema.
ФУНКЦИОНАЛНА ПАРАДИГМА У ПРОГРАМСКОМ ЈЕЗИКУ C#
Authors: Иветић Марко
Published: March 2019

Тема рада је представљaње концепата функционалног програмирања. У оквиру рада, поред описа самих концепата, приказани су и примери њихове употребе у програмском језику C#.
МЕТОДОЛОГИЈЕ УПРАВЉАЊА ПРОЈЕКТОМ СА АКЦЕНТОМ НА SCRUM
Authors: Говедарица Милица
Published: March 2019

У раду су описане популарне методологије за управљање пројектом. Направљено је угрубо поређење двије главне групе методологија. Акценат рада је стављен на scrum, који је до детаља објашњен.
Geological structure and mineralogy of the Mechnikovskoe gold deposit, thе Southern Urals
Authors: Melekestseva I. Yu. , Zaykov V. V. , Tret’yakov G. A. , Filippova K. A. , Kotlyarov V. A.
Published: March 2019

Subject. The article presents the results of study of Mechnikovskoe gold deposit associated with listvenites and beresites of the Miass region of the Southern Urals.

Materials and methods. Materials were sampled during the field work of 2010– 2012. The chemical composition of rocks is analyzed by methods of classical chemistry (rock-forming oxides) and ICP MS (trace elements). The mineral composition is determined on an electron microscope with EDS.

Results. The deposit is composed of tectonic sheets of serpentinites, carbonatized serpentinites and listvenites (sheet I), metadiabases and plagioclase metabasalts of the Irendyk Formation and beresites and volcanosedimentary rocks and metabasalts of the Karamalytash Formation (sheet II). In the central part of the deposit, the volcanic rocks are intruded by a dike of finegrained island-arc granites. Chromites of serpentinites are characterized (on average) by high Cr# (89) and low Mg# (29) values and low contents of Al2O3 (6.94 wt %) and MgO (5.5 wt %). Gold-bearing rocks include listvenites, beresites and carbonaceous shales. The major ore mineral is pyrite; accessory minerals are Au and Ag minerals, chalcopyrite, fahlores, galena, sphalerite, pyrrhotite, cubanite, vaesite, melonite, secondary copper sulfides, barite, rutile, monazite and xenotime. Gold of the deposit contains low Ag contents (3.52 wt %) and minor amount of Cu and Hg (<1 wt % in most analyses).

Conclusions. The listvenites and beresites of the deposit were formed after ultramafic and mafic rocks, respectively. The discovery of gold in various rocks indicates that gold mineralization was deposited after the formation of the geological structure of the deposit. The source of gold was most likely related to a magmatic fluid.
The Tamunier gold deposit in the Northern Ural: Physicochemical formative conditions, ore and fluid sources, genesis
Authors: Zamiatina D. A. , Murzin V. V.
Published: March 2019

Research subject.This research study was aimed at investigating metasomatic minerals and ores in the Tamunier Deposit, which is located in the Northern Urals, at the Eastern side of the Tagil megazone within the Auerbach volcano-plutonic belt.

Materials and methods.Well core samples were investigated using a complex of research methods, including optical and electron microscopy, X-ray spectral microanalysis, mineral geothermometry, thermobarogeochemistry (microthermometry, gas chromatography, determination of the salt composition of fluid inclusions in minerals) and isotope geochemistry (isotopes C, O, S, Sr, Pb).

Results.A genetic model describing the formation of the Tamunier deposit was developed using the data obtained on its geological structure, mineral composition of metasomatites and ores, fluid formation mode, sources of ore matter and ore-bearing fluid. In the proposed model, the magmatogenic sodium chloride fluid carrying ore components and S is separated from the Auerbach complex at the depth of intrusion. Penetrating to the surface, this fluid interacts with the rocks of volcanic-sedimentary strata, thereby extracting a number of components, including CO2, S and Sr.

Conclusion.Despite the presence of sulphide mineralization of hydrothermal-sedimentary genesis in the volcanogenic-sedimentary rock mass, the data obtained has allowed us to refer the gold-sulphide ores under study to magmatogenic-hydrothermal formations. The estimated P-T conditions (t= 100–370ºС andP= 0.4–0.6 kbar) and the shallow depth of the Tamunier field have shown its correspondence to the sub-epithermal level in the model of the porphyry-epithermal ore-magmatic system.
Geochemical features and formation conditions of Early-Devonian cherty-argillaceous shales and the underlying basalts in the Ishkildino section (eastern slope of the Southern Urals)
Authors: Fazliakhmetov A. M.
Published: March 2019

Research subject.The West Magnitogorsk zone of the Southern Urals in the vicinity of the Ishkildino village features a subaerially exposed basaltic sequence superposed by cherts and siliceous-clay shales. The basalts and the overlying shales are assumed to have formed during the Ordovician and Silurian (?)–Early Devonian (up to the conodont zone excavates inclusive) periods, respectively. The aim of this research was to reconstruct, using geochemical data, the conditions under which the rocks present in this geological location were formed.

Materials and methods. Five samples of the basalts (XRD and ICP-MS methods), 27 samples of the siliceous-clay shales and 10 samples of the cherts (XRD and ICP-AES methods) were analyzed.

Results.According to the ratio of SiO2, Na2O and K2O, the volcanic rocks from the lower part of the section are represented by basalts and trachybasalts. Their geochemical composition corresponds to the N-MORB and is established to be similar to that of the basalts in the Polyakovskaya formation (the Middle–Upper Ordovician). In terms of main elements, the shales under study consist of quartz and illite with a slight admixture of organic matter, goethite, quartzfeldspar fragments, etc. The degree of the sedimentary material weathering according to the CIA, CIW and ICV index values is shown to be moderate. The values of Strakhov’s and Boström’s moduli correspond to sediments without the admixture of underwater hydrothermal vent products. The values of Cr/Al, V/Al and Zr/Al correspond to those characteristic of deposits in deep-water zones remote from the coasts of passive and active continental margins, basalt islands and areas adjacent to mid-ocean ridges. For most samples, the values of Ni/Co, V/Cr, Mo/Mn are typical of deposits formed under oxidative conditions. However, several samples from the upper part of the section, which is comparable to the kitabicus and excavatus conodont zones, demonstrate the Ni/Co, V/Cr, and Mo/Mn values corresponding to deposits formed under reducing atmospheres. An assumption is made that the existence of these deposits can be associated with the Bazal Zlichov event.

Conclusion.The investigated pre-Emsian shales have shown no signs of volcanic activity in the adjacent areas. The studied deposits are established to correspond to the central part of the Ural Paleoocean.
Distribution of brachiopods in the Lower Visean deposits in the Eastern Urals
Authors: Kucheva N. A.
Published: March 2019

Subject. This paper is aimed at investigating the distribution of brachiopods across the stratotypes of the Lower Visean regional substages and formations, as well as of the Upper Visean Zhukovsky regional substage, which are presently located in the East Uralian and Magnitogorskian megazones of the Eastern Urals.

 Materials and methods. Brachiopods were one of the most numerous groups of benthic organisms inhabiting the Early Carboniferous marine basins now located in the eastern Urals. This paper presents information on the distribution of brachiopods across the carbonate and carbonate-terrigenous facies of the Middle (Pokrovskoe, Zhukovo, Smolino, Brod-Kljuchiki) and Southern (Nizhnyaya Gusikha, Verkhnyaya Kardailovka, Kipchak, Ust-Grekhovka and Khudolaz) Urals sections.

Results. It is found that Delepinеа lebedevi, D. comoides, Ovatia markovskii and Composita sp. were the domineering species during the Early Visean period. The Ust-Grekhovsky time marked the appearance of migrant species, which resulted not only in a decrease in the proportion of Delepinеа and Ovatia but also significantly changed the entire structure of the local brachiopod communities. The evolutionary transformation of the Ovatia genus at the Ust-Grekhovsky–Zhukovsky time boundary led to the appearance of the Linoprotonia genus and subsequently to the Globosoproductus genus (the first representative of the Gigantoproductini). The Zhukovsky period was characterized by a continuing reorganization of the composition and structure of the communities, featuring a change in the dominant taxa. The Linoprotonia and Globosoproductus genera became widespread. Rare representatives of the Gigantoproductus, Datangia and Semiplanus genera appeared.

Conclusions. A direct correlation between the diversity of brachiopod associations and abiotic factors is found. The most diverse associations represented by the taxa of several orders, including Gigantoproductini, inhabited shallow-water environments with carbonate sedimentation. The evolution of brachiopods over the Early Visean and Zhukovsky periods of the Late Visean was characterized by natural succession in the composition of genera and species, with the most significant alteration having occurred in the Ust-Grekhovsky and Zhukovsky periods.
Dynamics of the conodont diversity in the Late Devonian–Early Carboniferous (Famennian–Serpukhovian)
Authors: Zhuravlev A. V.
Published: March 2019

Subject.The article is aimed to evaluate of the conodont diversity dynamics at the species level in the Famennian – Serpukhovian interval.

Materials and methods.The database compiled from the published and original data contains information on the stratigraphic ranges of 389 Famennian-Serpukhovian conodont species (https://1drv.ms/x/s!AvPFMTPLPc7T4nFU81CaO5UJ6nlw). Conodont zones compose the geochronological basis of the database. The conodont diversity, origination, extinction, and diversification were calculated. Dynamics of these parameters in the Late Devonian–Early Carboniferous was analyzed.

Results.The Famennian-Serpukhovian conodonts demonstrate four cycles in the diversity: the early Famennian (triangularis-early postera zones), the late Famennian (late postera-praesulcata zones), the Tournaisian (sulcata-anchoralis zones), and the Visean-Serpukhovian (texanus-bollandensis zones). The cycles are separated by the low-diversity episodes. The highest diversity (80 species) is detected in the early and late marginifera zones (Famennian).

Conclusions.The successive decreasing in diversity comprises interval from the late Famennian through Serpukhovian. The global events gave little influence on the conodont diversity except for the Frasnian/Famennian (about 70% conodont species became extinct) and Devonian/Carboniferous extinction events. Conodont diversity demonstrates weak dependence form the global sea level fluctuations. The transition from the green-house to ice-house climate at the beginning of the Carboniferous and successive changes in the marine ecosystems are considered as main probable cause of the decline in conodont diversity in the late Tournaisian-Serpukhovian.
أثار الازمات الاقتصادية على النمو الاقتصادي في آسيا للفترة 1990-2012 دراسة مقارنة
Authors: Mansoor Ahmad I. A. , Zanoon Marwan A.
Published: March 2019

هناك العديد من الاخطاء التي ارتكبت في تعامل الدول مع الازمات الاقتصادية مثل الازمة الاسيوية 1997 و2002 والعالمية 2008 وتم تشخيص أهم العوامل المسببة للاضطرابات: التدفق المتذبذب لراس المال الاجنبي، وتدهور الطلب الخارجي على السلع الاسيوية، مفترضين ان زيادة التقلبات ناتجة عن تزايد الترابط والانفتاح العالمي في الاسواق الدولية. نفذت هذه الدراسة عدد من المحاولات مستخدمة طريقة العزوم المعممة GMM لاختبار أثار الازمات في عدد من الدول الاسيوية خلال الفترة 1990-2012. واهم ما توصلت الية هو ان التوقفات الفجائية لراس المال الاجنبي خلال الازمة العالمية 2008 كان له الاثر السلبي الاكبر في تذبذب معدلات النمو الاقتصادي في آسيا بينما كان للصادرات دورا إيجابيا في تغطية العجز التجاري وتحفيز النمو الاقتصادي.
دور منظومة التعليم العالي في اعادة بناء النظام المحاسبي الموحد وفق معايير المحاسبة والإبلاغ المالي الدولية IAS/IFRS دراسة استطلاعية تحليلية لآراء عينة من أساتذة الجامعات والعاملين في عدد من المؤسسات الحكومية
Authors: Ismael Bashir Y. , Anbar Asil J. , Mham Muwafiq A.
Published: March 2019

إستهدف البحث تحليل دور أساتذة الجامعات والمؤسسات التعليمية في توفير محاسبين مؤهلين لإعادة بناء النظام المحاسبي الموحد وفق معايير المحاسبة والإبلاغ المالي الدولية IAS/IFRS. وقد أتبع الباحث اسلوبين، كُرس أولهما لعرض الجانب النظري عن طريق الاستعانة بالكتب والدوريات والوثائق الرسمية، وكذلك البحوث والدراسات ذات الصلة بموضوعة البحث فضلاً عن الاستعانة بالشبكة الدولية(الانترنت)، فيما تناول ثانيهما الجانب التطبيقي والذي تم تنفيذه عن طريق إعداد إستمارة إستبانة تألفت من جزأين يمثل الجزء الأول المعلومات العامة لأفراد عينة البحث، أما الجزء الثاني فيتكون من محورين رئيسين انتظمت تحتهما (15) فقرة لجمع البيانات من عينة عشوائية قوامها (40) مفردة مستردة من اصل (50) مفردة موزعة على عدد من أساتذة الجامعات والعاملين في عدد من المؤسسات الحكومية، وفي ضوء ذلك جرى جمع وتحليل البيانات واختبار الفرضيات بإستخدام البرنامج الاحصائي (SPSS). وإستكمالاً لإجراءات البحث فقد تم القيام بإجراء مقابلات عديدة مع مجموعة من الخبراء وذوي الإختصاص للإفادة من آرائهم وخبرتهم بموضوعة البحث. وقد توصل الباحث إلى عدد من الإستنتاجات من أهمها إن فلسفة تطوير وتعزيز المعارف لأساتذة الجامعات بشكل عام ينبغي أن تكون متأصلة في ذاتهم لكي يتمكنوا من تقديم مخرجات كفوءة وقادرة على مواجهة متطلبات العمل وتحقيق الفائدة المرجوة بأعلى مراتب الجودة. كما عرض الباحث مجموعة من التوصيات أبرزها ضرورة إستمرار بناء المهارات والمعارف اللازمة لأساتذة المحاسبة في الجامعات كافة لضمان التعامل مع التحديثات في هذا المجال والذي ينعكس بالنتيجة ايجاباً على جودة وكفاءة المخرجات المحاسبية.
Prospective platform for the improvement of the competitiveness of the Colombian shipyard sector through the development of integrated logistical capabilities
Authors: Balcázar Camacho Delio Alexander , Salazar Flor Ester , Adarme Jaimes Wilson
Published: March 2019

The Colombian shipyard sector is characterized by peculiarities that make it differ from other sectors that define its framework of operation, such as technical, technological, economic and institutional aspects and the dynamics of the shipyard market: a global competitive market; few local actors; difficulties to compete at the international level; financial, economic, technological and information asymmetries through its supply chain. Through the development of integrated logistic capacities, as a mechanism for the articulation and promotion of regional clusters, it is possible to improve the competitiveness of the shipyard sector, from the articulation of logistic operations, to achieve competitive advantages that are sustainable over time and leverage the articulation potential of the public, private and academic actors that make up and participate in the sector. Integrated logistics capabilities represent how organizations can leverage their resources in conjunction with other members of their supply chain and the industry in general, to deploy organizational strategies and achieve joint benefits for members. In this research, a prospective and strategic platform is presented to promote the creation of the Colombian shipyard cluster through the development of integrated logistic capacities, based on the utilization of the strategic resources of the sector's stakeholders and the analysis of the potentialities for their integration and development from the perspective of the theory of organizational resources in the context of supply chain management.
Socio-economic impact of the construction of an intermodal connection in Puerto Salgar, Cundinamarca
Authors: Cruz Pineda Omar David , Lara Abello Emmanuel
Published: March 2019

The aim of this work is to show the socio-economic impact in the Cundinamarca-Boyacá plateau produced by the construction and promotion of an alternative to relieve the freight transportation system in the region, and how it echoes in the manufacturing levels of the ship industry. For this reason, it is evaluated the option of establishing a logistics area in the town of Puerto Salgar (Cundinamarca) where may confluence an intermodal transportation system which emphasizes the Magdalena River as the main way for the country’s development and Puerto Salgar as the main axis for the economic growth of the plateau. The Discrete Event Simulation (DES) methodology was used for this work, using information given by previous studies by the Ministerio de Transporte, the Dirección Nacional de Planeación and the Instituto Nacional de Vías; setting a conceptual model which determines and limit the study, and implementing a Rockwell Arena simulation.
Major Factors Impacting the Operational Efficiency of Scientific Working Groups
Authors: Ha Nguyen Thi Thu , Duc Bui Minh , Duc Nguyen Dinh
Published: March 2019

The operational efficiency of scientific working groups is considered an important determinant for the success of scientific and technological activities and training of any educational institution. This study determines the major factors impacting the operational efficiency of scientific working groups. Survey results of 126 scientists of the scientific working groups show that: research teammates, research orientation and cooperation, supporting policies of educational institutions are the major factors impacting operational efficiency of scientific working groups. Based on the research results, we have proposed several solutions to improve effectiveness of science and technology activities and training of scientific working groups.

 Keywords: Scientific working group (SWG); impact factors; effectiveness of SWG.

References 

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Transformative Learning and some Suggestions on Applying it into Teaching and Learning Practices in Vietnam
Authors: Hang Ngo Vu Thu
Published: March 2019

This paper presents basic theoretical knowledge on a perspective of transformative learning. It focuses on the definition, principles, characteristics of transformative learning, and possiblities to apply it into teaching and learning practices in Vietnam. Alternatives to innovate traditional learning approaches towards a transformative learning approach are also proposed with suggestions on the application of open-ended learning tasks. To effectively apply the transformative learning perspective in schools, it needs more applied research in which integrated approaches and cooperations among researchers from various majors are emphasized.

Keywords

Transformative learning, integrated, teaching and learning, education

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