bluuebunny/crossref_metadata_2025 huggingface dataset:
A New Technique to Supply Fast Varying Reactive Power Using a STATCOM
Authors: Assis Tatiana Mariano Lessa de , Watanabe Edson Hirokazu , Pilotto Luiz Alberto da Silva , Sollero Raul Balbi
Published: October 2018

This paper proposes a new technique to compensate fast oscillating reactive power using a multipulse STATCOM. It is shown that the oscillating reactivepower can be controlled in a simple way by maintaining the STATCOM dc voltage constant. A simplified analytical analysis was performed in a power system with an arc furnace and a 12-pulse STATCOM. The study has shown that the STATCOM can compensate the furnace reactive current, even when fast oscillations occur. The system studied was implemented in a detailed EMTP/ATP simulation program. The results show that the reactive power oscillations produced by the furnace can be strongly reduced. However, due to the fact that arc furnace is an unbalanced load, STATCOM dc side capacitor has to be designed to supply the corresponding oscillating energy.
Análise Dinâmica da Conexão ao Sistema Elétrico de Usinas Eólicas Usando o APTDRAW
Authors: Neto Antonio Samuel , Pinheiro Eduardo Luiz Reis , Neves Francisco de Assis dos Santos , Silva Selênio Rocha , Rosas Pedro André Carvalho
Published: October 2018

Neste artigo, apresentam-se a modelagem de aerogeradores e a análise dos efeitos da sua conexão em redes elétricas. São contempladas três diferentes topologias de turbinas: com gerador de indução com rotor tipo gaiola, com gerador de indução de dupla alimentação e com gerador síncrono a ímãs permanente. Em todos os casos, foi considerada a conexão à rede através de conversor de freqüência e operação a velocidade variável com implementação do controle de forma tal a maximizar a extração de potência. Os algoritmos de simulação foram desenvolvidos em ATPDraw, tendo em vista atender aos interesses das empresas do setor elétrico, devido à facilidade de representação do sistema elétrico, bem como pelo aproveitamento do banco de dados já existente. São apresentados resultados de simulação de uma usina eólica composta por 10 aerogeradores de 1MW cada, conectada a um ponto de acoplamento comum em que a potência de curto-circuito é de aproximadamente 100MVA. São avaliados os efeitos de distúrbios na fonte primária, no sistema de conexão da usina à rede e na própria rede.
Udział Oskara Haleckiego w obchodach 250 rocznicy odsieczy wiedeńskiej w 1933 roku
Authors: Brzeziński Andrzej Maciej
Published: October 2018

Oskar Halecki, profesor Uniwersytetu Warszawskiego, znakomity znawca dziejów powszechnych i Polski, włączył się do obchodów 250 rocznicy odsieczy wiedeńskiej jako katolicki intelektualista. W opublikowanych z tej okazji artykułach profesor podkreślał znaczenie udziału Polski w zwycięskiej nad Turkami bitwie pod Wiedniem 12 września 1683 r., która ocaliła chrześcijańską Europę i zachodnią cywilizację. Wskazywał, że Polska pod wodzą Jana III Sobieskiego wystąpiła po raz kolejny w dziejowej roli „przedmurza” chrześcijaństwa, którą odgrywała od XIV w. Pogląd ten przedstawił również w wygłoszonym po niemiecku referacie Oswobodzenie Wiednia i jego znaczenie dla Austrii, Polskii Europy podczas uroczystej akademii z okazji polskich obchodów rocznicy wiedeńskiej w stolicy Austrii 13 września 1933 r. Punkt widzenia Haleckiego o Polsce świadomej dziejowego posłannictwa obrońcy chrześcijaństwa był zgodny z oficjalnym stanowiskiem Kościoła, wyrażonym przez prymasa Augusta Hlonda w oficjalnych pismach i wystąpieniach z okazji obchodów 250 rocznicy zwycięstwa pod Wiedniem. W artykule zatytułowanym W rocznicę odsieczy Wiednia, otwierającym okolicznościowy numer redagowanego przez profesora „Miesięcznika Heraldycznego”, Halecki porównywał historyczne znaczenie bitwy pod Wiedniem z bitwą pod Grunwaldem. Uważał, że w tysiącletnich dziejach Polski te dwa zwycięstwa można by zestawiać jedynie z bitwą pod Warszawą z 1920 r. Wiedeń, tak samo jak Grunwald, był „czynem przewidującej myśli politycznej”. W jednym i drugim przypadku „słusznej broniono sprawy” oraz prawa narodów do samodzielnego bytu wbrew „zakusom obcych najeźdźców”. Halecki odrzucał występujący w publicystyce pogląd, że udział Rzeczypospolitej w odsieczy Wiednia i ocalenie Austrii było politycznym błędem, ponieważ w następnym stuleciu wzięła udział w rozbiorach polsko-litewskiego państwa. Pogląd taki uważał za anachroniczny, pragnący wytłumaczyć wydarzenia 1683 r. nie w świetle sytuacji ówczesnej, wytworzonej przez poprzednie wieki, lecz za pomocą wydarzeń wiele późniejszych, niepozostających z odsieczą Wiednia w żadnym związku przyczynowym.
26 dywizjon artylerii ciężkiej w latach 1937–1939
Authors: Jarno Witold
Published: October 2018

Artykuł opisuje historię mało znanej jednostki artylerii Wojska Polskiego z okresu międzywojennego – 26 dywizjonu artylerii ciężkiej. Jednostka ta powstała jesienią 1937 r. w Skierniewicach na obszarze Okręgu Korpusu nr IV Łódź i została bezpośrednio podporządkowana dowódcy 26 Dywizji Piechoty. Powstanie 26 dywizjonu artylerii ciężkiej było jednym z elementów zwiększania siły ogniowej związków taktycznych piechoty polskiej. Jednak braki w sprzęcie artyleryjskim spowodowały, że do 1939 r. dywizjony artylerii ciężkiej sformowano jedynie w kilku dywizjach piechoty, w tym w 26 Dywizji Piechoty. Zamiast planowanych trzech baterii 26 dywizjon artylerii ciężkiej miał jedynie dwie baterie liczące po trzy działa (w pierwszej baterii armaty 105 mm, a w drugiej baterii haubice 155 mm). Omawiana jednostka została zmobilizowana w marcu 1939 r. Pomimo wielu trudności i braków w wyposażeniu mobilizacja odbyła się sprawnie, a braki uzupełniano w kolejnych tygodniach. W maju 1939 r. 26 dywizjon artylerii ciężkiej został przewieziony koleją do Wielkopolski (wraz z całą 26 Dywizją Piechoty) i podporządkowany dowództwu Armii „Poznań”. W wojnie polsko-niemieckiej wspierał ogniem oddziały własnej dywizji w czasie walk nad Bzurą. W ich trakcie jednostka została rozbita, a większość żołnierzy dostała się do niewoli niemieckiej.
Czy „chcieć to móc”? Kolejna próba historycznej refleksji nad postacią Józefa Piłsudskiego (Rec.: Grzegorz Nowik, Odrodzenie Rzeczypospolitej w myśli politycznej Józefa Piłsudskiego 1918–1922, cz. 1, Sprawy wewnętrzne, Muzeum Józefa Piłsudskiego, Oficyna Wydawnicza Volumen, Warszawa 2017, ss. 506)
Authors: Waingertner Przemysław
Published: October 2018

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Sprawozdanie z ogólnopolskiej konferencji naukowej pt. Oblicza Wojny. Ludzie Wojny, Łódź, 7–8 czerwca 2018 r.
Authors: Kałużny Jędrzej Tomasz
Published: October 2018

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Students' views on the use of tablet computers in education
Authors: Semerci Ali
Published: October 2018

The aim of this study was to explore high school students' views on the use of tablet computers in education. To achieve this aim, a qualitative research method was employed whereby data was obtained from 16 high school students using one-to-one semi-structured interviews and then, subjected to content analysis. The findings showed that all the participating students expressed a positive attitude towards tablet computers prior to their use in education. However, students stated that, after a short period spent on using the tablet computers, they found that tablet computers affected student ' teacher and student' student interaction. A significant number of the students stated that the educational content presented in the Educational Information Network (EBA) Portal was inadequate and inappropriate to their level. Also, in terms of the learning and teaching process, the students raised several concerns. To facilitate the effective use of tablet computers in education, students made several recommendations.Keywords: FATIH Project, tablet computers, technology integration in education, tablet computers in education.
Adaptation of interaction in web environments with educational content
Authors: Cetinkaya Levent , Keser Hafize
Published: October 2018

This study, which aims to determine the design principles of interaction adaptation in adaptive online learning environments, was based on a mixed and comparative type of relational screening model. Modified online Delphi method was employed in order to develop the principles and determine the relative importance. Ninety experts participated in the study. Arithmetic mean, first quartile deviation, standard deviation and intraclass coefficient of correlation were utilised to determine the levels of agreement of the experts on the principles. Two hundred and seventy studies which included parameters utilised during the design of interaction were analysed by using content analysis and the robustness of the findings was categorically evaluated, and it was found that experts had almost full agreement on all the 10 principles. Furthermore, the agreement on principles between the observers (intraclass correlation coefficient = 0.903) was found perfect. The obtained principles that indicate the common inclinations both in the literature and of the domain experts should be employed.
Chinese News Media Discourse of Doulas and Doula Care
Authors: Dai Zehui
Published: October 2018

This article highlights the relationships among Chinese society, the discourse about doulas and doula care in childbirth, and Chinese women. The author used a critical feminist lens to analyze the discourse about doulas, doula care in childbirth, and women in Chinese mainstream news media. This analysis showed that the Chinese news media and government encouraged and promoted becoming a doula as a profession and doula care in labor in terms of cultural, social, and political factors. An argument was presented that these discourses obscure a nuanced understanding of Chinese women’s maternal health in general.
Contributions of KDD to the Knowledge Management Process
Authors: Do Prado Hércules Antonio , Costa de Sousa Paulo de Tarso , Amadeu Moresi Eduardo , Ladeira Marcelo
Published: October 2018

Knowledge Discovery in Databases (KDD), as any organizational process, is carried out beneath a Knowledge Management (KM) model adopted (even informally) by a corporation. KDD is grossly described in three steps: pre-processing, data mining, and post-processing. The latter is mainly related to the task of transforming in knowledge the patterns issued in the data mining step. On the other hand, KM comprises the following phases, in which knowledge is the subject of the actions: identification of abilities, acquisition, selection and validation, organization and storage, sharing, application, and creation. Although there are many overlaps between KDD and KM, one of them is broadly recognized: the point in which knowledge arises. This paper concerns a study aimed at clarifying relations between the overlapping areas of KDD and knowledge creation, in KM. The work is conducted by means of a case study using the data from the Electoral Court of the Federal District (ECFD), Brazil. The study was developed over a 1.717.000-citizens data set from which data mining models were built by applying algorithms from Weka. It was observed that, although the importance of Information Technology is well recognized in the KM realm, the techniques of KDD deserve a special place in the knowledge creation phase of KM. Moreover, beyond the overlap of post- processing and knowledge creation, other steps of KDD can contribute significantly to KM. An example is the fact that one important decision taken from the ECFD board was taken on the basis of a knowledge acquired from the pre-processing step of KDD.
An ontology-based technique for the specification of domain and user models in multi-agent domain
Authors: Gomes de Faria Carla , Girardi Rosario
Published: October 2018

Because of its facilities for the generalization and specialization of concepts and the unambiguous terminology they provide, ontologies are being used for the representation of reusable software artifacts. This work describes GRAMO, an ontology-based technique for the specification of domain and user models in Multi-Agent Domain Engineering. ONTODUM, an ontology-based tool supporting GRAMO is also introduced. ONTODUM represents the knowledge of GRAMO. Some case studies developed to evaluate GRAMO are also briefly described.
MIKRONUTRIEN PENYEBAB ANEMIA PADA PENGGUNA NARKOBA DI MEDAN TEMBUNG
Authors: Siahaan Ginta , Siallagan Roy Ferdi , Purba Rumida , Oppusungu Riris
Published: October 2018

Drug users are generally vulnerable to malnutrition because of the side effects of drugs itself that has resulted in appetite reduction and nutrients malabsorption. Inadequate nutrient intake especially nutrient for haemoglobinsynthesis is the main cause of anemia among drug users. The aim of this research was to analyze the relationship between intake of micronutrients and haemoglobin level among drug users in Medan Tembung Sub District. Thisresearch was an observasional study with cross sectional design. The respondents was 73 drug users selected by snowball and accidental sampling technique. Datas were analyzed using the pearson correlation test and rankspearmean correlation followed by linier regression test to analyze the main variables which cause the anemia. There was a relationship between the intake of micronutrients such as iron (Fe), zinc (Zn), vitamin B9, vitamin B12 andvitamin C with the level of Hb where the value of
The Economic Impact of Dreamland Existence on Community in Ajibarang
Authors: Astuti Andy Widi
Published: October 2018

This research aimed to analyze the average employee and trader income before and after working at Dreamland, decent living needs of employee and trader, and consumption needs of Dreamland employee and trader.  Data of this research was primary data analyzed using t test to two correlated samples. The results of this research indicated that the employee and trader incomes were different before and after working at Dreamland and indicating an increase, employee and trader income can fulfill decent living needs, employees’ income can fulfill their consumption needs, and traders income can fulfill their consumption needs. The suggestion for the owner of Dreamland is to develop tourism activities so as to open job and business opportunities for the surrounding community, and the local government should supervise and develop tourism business by facilitating business licensing.Keywords:   Economic Impact, Dreamland Tourism Object, Paired Sample t Test, Decent Living Needs, Consumption.
Strategy and Policy for Empowerment of Duck Farming Business in Brebes Sub-District, Brebes Regency
Authors: Setiarso Oke , Sukiman Sukiman , Kadarwati Nunik
Published: October 2018

This study aimed to determine appropriate strategies and policies for empowerment of duck farming business in Brebes Sub-District, Brebes Regency. The method of this study was survey using stratified random sampling with the sample size of 52 laying duck farmers. Data taken in the form of primary and secondary data were analyzed using SWOT analysis. The result indicated that duck farming business did not have Economic Institutions, it was an individual, dependent and unprofessional business because it depended on the middlemen. It can be said that duck farming business in Brebes Regency was a livestock labor business. The strategies and policies for empowerment of duck farming business in Brebes sub-district Brebes Regency included the provision of livestock area facility, waste management, capital, livestock management and development of marketing centers for processed duck meat and eggs products.Keywords: Duck, Institution, Cooperation, Strategy, Policy.
Economic Growth and Income Disparity between Regencies/Cities in West Java Province
Authors: Lestari S. , Gunawan Ratna Setyawati
Published: October 2018

The aim of this research is to find out the correlation between economic growth and inter regency income disparity in West Java Province year 2005 to 2014. This research is analysis of secondary data, using GDRP Based on constant price 2010, economic growth, and total population year 2005 to 2014. Data obtional from SCA of West Java Province and also the Local Goverment. Analysis model used is Williamson Index, Entropi Theil Index Calculation, Product Moment Colerration Analysis by Pearson, and Trend analysis. Based on Calculation of Williamson Index and Entropi Theil Index inter regency income disparity in West Java Province considered in high disparity with the average of Williamson index by 0.628 and Entropi Theil Index by 1.421. Based on Trand analysis disparity income show increasing trand. The Kuznets Hypothesis (U-inverted curve) proved to be not applicable in West Java Province during 2005 to 2014, and it shows that inequality is getting worse.Keywords: Income Disparity, Economic Growth, Kuznets Hypothesis.
Inequality of Income Distribution in Rural and Urban Poor Communities (A Case Study on Former Beneficiaries of PNPM-M Program in Banyumas Regency)
Authors: Rahajuni Dijan , Suprapto Suprapto , Badriah Lilis Siti , Lestari Sri , Rafinda Ascaryan
Published: October 2018

The success of economic development should not only focus on economic growth, but also efforts to increase income and purchasing power along with equal income distribution. Inequality of income distribution is a problem that must be addressed immediately because it will have a broad impact on the next development process. The object of this research was poor communities as the beneficiaries of revolving loan of The National Program for Community Empowerment-Independent (PNPM-M). The research method was survey on beneficiary respondents in urban areas (PNPM-MP) and rural areas (PNPM-PMd), conducted using a questionnaire. Data analysis in this research used income distribution inequality criteria from World Bank and Gini Ratio. The result found that more than 50% of respondents both in groups and areas had low income and did not meet the standard for decent living standard (KHL). The average respondents income distribution both in the groups or areas according to the World Bank and Gini Ratio criteria was in the moderate category. However according to areas, inequality of income distribution in rural areas was higher than in urban areas. To minimize income inequality between the communities, community groups and areas, it is necessary to empower the community based on the potential of local economic resources.Keywords: Income Distribution, PNPM-M, KHL, Gini Ratio
Generalized Convolution Spectral Mixture for Multi-Task Gaussian Processes
Authors: Chen Kai , van Laarhoven Twan , Groot Perry , Chen Jinsong , Marchiori Elena
Published: October 2018

Multi-task Gaussian processes (MTGPs) are a powerful approach for modeling structured dependencies among multiple tasks. Researchers on MTGPs have contributed to enhance this approach in various ways. Current MTGP methods, however, cannot model nonlinear task correlations in a general way. In this paper we address this problem. We focus on spectral mixture (SM) based kernels and propose an enhancement of this type of kernels, called multi-task generalized convolution spectral mixture (MT-GCSM) kernel. The MT-GCSM kernel can model nonlinear task correlations and mixtures dependency, including time and phase delay, not only between different tasks but also within a task at the spectral mixture level. Each task in MT-GCSM has its own generalized convolution spectral mixture kernel (GCSM) with a different number of convolution structures and all spectral mixtures from different tasks are dependent. Furthermore, the proposed kernel uses inner and outer full cross convolution between base spectral mixtures, so that the base spectral mixtures in the tasks are not necessarily aligned. Extensive experiments on synthetic and real-life datasets illustrate the difference between MT-GCSM and other kernels as well as the practical effectiveness of MT-GCSM.
Pseudo-Commutative Algebras
Authors: Kim Hee Sik , Neggers J. , Ahn Sun Shin
Published: October 2018

In this paper, we investigate the effects of certain variants of the commutative laws on properties of several families of algebras which are in general not commutative, such as groups, linear algebras, or actually quite anti-commutative, such as $BCK$-algebras and $d$-algebras among others. From results obtained it becomes clear that by considering these variants in the presence of yet other axioms it is to be expected that a quite rich and varied set of results may be obtained both in the general and the particular setting of which what has been accomplished in this paper is a substantial sample.
Gold and Silver joining technologies in the Moche Tombs “Señor de Sipán” and “Señora de Cao jewelery
Authors: Gigante Giovanni E. , Roberto Cesareo , Bustamante Angel , Jordán Regulo Franco , Fernandez Arabel , Brunetti Antonio , Ridolfi Stefano , Lopes Ricardo Tadeu
Published: October 2018

About 200 gold and silver funerary ornaments from the Moche tombs “Señor de Sipán” and “Señora de Cao” were analyzed to determine their metallurgic characteristics. Of particular interest was the question about the gold-silver joining process. To this aim, following methods were employed, all based on the use of X-rays:

-energy dispersive X-ray fluorescence;

-transmission of monoenergetic fluorescent X-rays;

-radiography.

At least three  joining methods were possibly identified:

-of gluing gold and silver sheets;

-of brazing using a proper solder;
-of using a mercury amalgam
First results on the use of a EDXRF scanner for 3D imaging of paintings
Authors: Cesareo Roberto , Ridolfi Stefano , Brunetti Antonio , Lopes Ricardo T , Gigante Giovanni E
Published: October 2018

A 3D map of chemical elements distribution from energy-dispersive X-ray fluorescence (EDXRF) analysis would be a perfect conclusion
in a detailed study of any type of artifact. This map can be easily achieved by using synchrotron light as source of radiation, and micro-
optics both at the source and at the detector. In such a manner a micro-voxel is irradiated and detected, which can be at any depth with
respect to the surface of the artifact. This method is effective but needs a high-intensity X-ray source; therefore, its use in archaeometry
is limited. An alternative method is proposed in the present paper, which uses a portable EDXRF-device to measure the altered Ka/Kb
or La/Lb-ratios, which allow to locate the chemical elements. Several examples are described.
Ghost in the Shell - Collection of Old Scientific Instruments of Laboratory for Experimental Psychology
Authors: Toskovic Oliver
Published: October 2018

Creating of Collection of old scientific instruments of Laboratory for experimental psychology, Faculty of philosophy, University of Belgrade is an attempt to preserve a part of history of science in Serbia. There are around 100 instruments in Collection, which mostly came to Belgrade within German war reparations to Kingdom of Yugoslavia, after the World War I. Most of the instruments were made in workshop of E. Zimmermann, precise mechanic of the first psychology laboratory in the world, founded in 1879 by Wilhelm Wundt in Leipzig. They can be grouped on those aimed for examining visual and auditory perception, memory and learning, kimography and ergography and those designed for investigating emotions. Together with books and journals from 19th and beginning of 20th century, instruments create an ensemble based on which it is possible to reconstruct one psychological laboratory from the very beginning of development this scientific discipline.
3D survey and metric analysis of the Late Roman Fort of Umm al-Dabadib (Egypt)
Authors: Fiorillo Fausta , Rossi Corinna
Published: October 2018

This paper presents a metric analysis and interpretation of the 3D survey of the Late Roman Fort of Umm al-Dabadib (Kharga Oasis, Egypt). The aim is to verify if a modular measure was used in the construction of the Fort and whether this was congruent with Roman or Egyptian units of measurement. Horizontal and vertical sections were extracted from the 3D model of the Fort derived from a close-range photogrammetry survey method. The resulting technical drawings were used for the study and interpretation of the dimensional patterns of the Fort that revealed the correspondence of the units of measurement of the building to Egyptian Reformed Cubit. This research is part of the project LIFE (Living in a Fringe Environment), funded by the ERC CoGrant 68167.
Measuring the modal parameters of a cultural heritage tower by using strong-motion signals
Authors: Diaferio Mariella , Foti Dora , Giannoccaro Nicola Ivan , Ivorra Salvador Ivorra
Published: October 2018

This paper presents the dynamic experimental campaign carried out on a stocky masonry clock tower situated in the Swabian Castle of Trani (Italy). The main objective of this paper is, after estimating the main frequencies and vibration modes of the considered structure, defining the transmission of vibrations along the height of the tower by varying the forced frequency at the base. At this aim, short acceleration records have been acquired simultaneously in 20 points of the tower at different levels, due to a series of sinusoidal forced vibrations applied at the base by using a pneumatic shaker device specify designed for the tests. The proposed procedure permit to extract for each monitored point the amplitude of the sinusoidal component related to the excitation frequency and the phase shift due to the structure damping. The results of the proposed procedure are compared with the results of a classical operational modal analysis in environmental conditions in order to demonstrate that the short forced tests permit to classify the typology of the structure mode shapes.
Laser cleaning of Cu-based artefacts: laser/corrosion products interaction
Authors: Di Francia Elisabetta , Lahoz Ruth , Neff Delphine , Angelini Emma , Grassini Sabrina
Published: October 2018

This study aims to develop a low invasive and selective laser cleaning procedure for the removal of reactive corrosion products on Cu-based artefacts without damage the substrate. In a preliminary step, laser cleaning was performed on two typologies of artificially corroded copper reference samples. The effect of the variation of laser parameters as pulse duration and output power, was thus evaluated on an oxide layer, simulating a protective patina, and a hydroxychloride layer, simulating a reactive corrosion products layer to be removed. The optimized cleaning procedure was validated on an archaeological artefact, a bronze coin. Morphological, microchemical and microstructural characterizations were performed by means of optical microscopy, confocal microscopy, field emission scanning electron microscopy, X-Ray diffraction and Raman spectroscopy, before and after laser cleaning. The experimental findings show that laser cleaning, in optimized conditions, can reduce the thickness of the hydroxychloride layers slightly affecting the oxide layers. The difference in the interaction with laser radiation of these two layers seems to be mainly related to the difference in grain size and porosity. Notwithstanding these encouraging results, in order to define the real feasibility of the laser cleaning procedure, a further validation on real artefacts is mandatory due to the variation in thickness and composition of the corrosion products formed during long-lasting uncontrolled degradation processes.
Donor-Site-Related Mechanical Symptoms Following Osteochondral Autograft Transfer
Authors: Anil Utkarsh , Strauss Eric J.
Published: October 2018

Case:

A 37-year-old woman presented with repetitive catching of the right knee 4 weeks after implantation of a 2-plug osteochondral autograft into the medial femoral condyle. The workup indicated that the symptoms were secondary to patellar engagement with the donor sites of the lateral aspect of the trochlea. She subsequently underwent osteochondral allograft implantation, resulting in painless, full range of motion with complete resolution of the mechanical symptoms.

Conclusion:

It is important to consider donor-site morbidity following osteochondral autograft implantation, especially in patients with a relatively narrow distal aspect of the femur. Implantation of osteochondral allograft plugs in the symptomatic donor site is a feasible management option for this rarely reported complication.
Catastrophic Failure of a Carbon-Fiber-Reinforced Polyetheretherketone Tibial Intramedullary Nail
Authors: Loeb Alexander E. , Mitchell Stuart L. , Osgood Greg M. , Shafiq Babar
Published: October 2018

Case:

We present a case of a rare low-energy catastrophic failure of a carbon-fiber-reinforced polyetheretherketone tibial intramedullary nail at 10 weeks after placement in a 36-year-old man. We describe our experience with extraction of the device.

Conclusion:

Carbon-fiber composite implants are approved for clinical use in orthopaedic trauma applications. The rare failure of carbon-fiber implants presents unique challenges because typical extraction techniques cannot be used. With the patient described herein, a terminally threaded guidewire was used to cannulate and extract the distal segment of the nail.
Cerámica Campaniense en la Corduba romana
Authors: VENTURA MARTÍNEZ Juan José
Published: October 2018

Las cerámicas helenísticas de barniz negro, convencionalmente llamadas Cerámica Campaniense, constituyen uno de los elementos prioritarios en los trabajos de investigación sobre contextos helenísticos occidentales. En este artículo aportamos una aproximación a esta clase de cerámica en relación a Corduba, ciudad ibero-romana que es considerada como la capital, de facto, de la Hispania Ulterior durante la república.
Construcciones de Opus Quadratum en Córdoba
Authors: ROLDÁN GÓMEZ Lourdes
Published: October 2018

El presente artículo tiene como objetivo resaltar la importancia de determinados edificios de la provincia y de la ciudad de Córdoba, como jalones en la utilización y difusión de técnicas de construcción romanas en la Provincia Bética. En concreto el opus quadratum, escasamente representado en otras ciudades Hispanorromanas, tiene una abundante utilización en esta ciudad, tanto en época republicana como imperial. Así, podemos considerar la presencia de esta técnica como un modo de prestigiar la ciudad, elegida como capital de la Bética. También se relizaron en opus quadratum los puentes de Villa del Río y Los Pedroches, que pueden ser considerados como elementos fundamentales en las vías de comunicación de la ciudad de Córdoba con otros importantes núcleos urbanos.
1980-2000 YILLARI ARASINDA TÜRKİYE’DE GERÇEKLEŞEN GENEL SEÇİM SONUÇLARI ÜZERİNE MEKÂNSAL BİR ANALİZ
Authors: YİĞİT Hasan Hüseyin
Published: October 2018

Demokrasilerin egemen olduğu
bölgelerde idareciler, seçmenler tarafından belirlenmektedir. Seçimlerin gerçekleşmesi
esnasında ise seçmen tercihleri ve illerarası mekânsal farklılıklar gibi
parametreler partilerin oy oranlarının belirlenmesinde rol almaktadır. Bu anlamda
yapılan çalışmada mekânın siyasetle olan ilişkisine değinilerek mekânsal
farklılıkların genel seçim sonuçları üzerindeki bağımlılık etkileri
ölçülmüştür. Bu çerçevede; “Seçmen tercihleri mekânsal farklılıklardan
etkileniyor mu?” ve “İllerarası komşuluk ilişkileri seçmen tercihlerine
yansıyor mu?” gibi sorulara cevaplar aranmıştır. Araştırmada, iller arası
mekânsal ağırlıklandırma ve komşuluk matrisi hesaplamaları yapılarak mekânsal
düzeyde iller arası bağımlılık dereceleri ölçülmüştür. Mekânsal bağımlılık
derecelerinin ölçülmesinde Moran’ın I ve Geary’nin C test istatistikleri
kullanılmıştır. Buna göre küresel ve yerel düzeyde illerin bağımlılık
seviyeleri belirlenmiştir. Yapılan çalışmada genel olarak seçim sonuçları,
ekonomik coğrafya, siyasi coğrafya ve mekânsal analiz gibi dört farklı alt
disiplin ele alınmıştır. Çalışma kapsamında seçmen tercihlerinin yerel ve küresel
düzeyde mekânsal farklılıklar ile komşuluk ilişkilerinden belirli ölçülerde
etkilendiği sonucuna ulaşılmıştır.
Salinity Management in Pima Cotton Fields Using Sulfur Burner
Authors: Ganjegunte Girisha K. , Clark John A. , Parajulee Megha N. , Enciso Juan , Kumar Saurav
Published: October 2018

Core Ideas

Salinity and sodicity in irrigated cotton fields are reducing soil productivity, lint yield, and fiber quality in arid and semiarid regions of the world.

Sulfur burner treatment of irrigation water can be used to tap native CaCO3 to produce CaSO4 in a safe manner.

Calcium sulfate increases Ca availability in the root zone to counter Na, improve soil permeability, and leach salts to deeper depths.

Salinity and sodicity are the dual problems affecting soil productivity, lint yield, and fiber quality in the irrigated pima cotton (Gossypium hirsutum L.) fields in far west Texas. This field study evaluated the effects of S burner‐treated blended irrigation water on sodicity and salinity of the root zone, cotton lint yield, and fiber quality. Results indicated that pre‐study soil salinity and sodicity exceeded the threshold levels in many areas within the 9.2‐ha study site. One year of irrigation with S burner‐treated water resulted in 19% reduction in salinity of the upper 0‐ to 30‐cm depth and redistribution of salts at deeper depths. Average sodium adsorption ratio (SAR) of study site soils decreased by 3 to 5% at 0‐ to 15‐, 30‐ to 45‐, and 45‐ to 60‐cm depths and reduction in the SAR range for 15‐ to 30‐ and 60‐ to 75‐cm depths indicated redistribution of Na. Irrigation with S burner‐treated blended water increased annual cotton lint yield by 20% compared with long‐term average and improved fiber quality. However, 1 yr of irrigation with S burner‐treated water did not reduce the maximum soil ECe and SAR values below the threshold levels at different depths. Multi‐year studies are needed to confirm our results and quantify the duration required to restore soil quality, cotton yield, and fiber quality.
Subsoil Potassium in Central Iowa Soils: Status and Future Challenges
Authors: Obrycki John F. , Kovar John L. , Karlen Douglas L.
Published: October 2018

Core Ideas

Surface and subsurface soil K concentrations are both important.

Soil‐test K levels in many central Iowa soils are below recommended levels.

A cellulosic‐based bioeconomy will require higher soil‐test K concentrations.

Plant‐available K below 15 cm averaged 100 to 110 mg kg‐1 in central Iowa.

A reevaluation of plant‐available K within central Iowa soils is needed, especially if crop residues are harvested for animal feed or cellulosic feedstock. This study evaluated plant‐available K concentrations to depths of 120 cm (n = 2433) within soil profiles at 10 experimental sites. Data from 0‐ to 5‐, 5‐ to 15‐, 0‐ to 15‐, 15‐ to 30‐, 30‐ to 60‐, 60‐ to 90‐, and 90‐ to 120‐cm depths were compiled and evaluated. Based on over 400 samples collected from each depth increment below 15 cm, a reference value of 100 mg kg–1 appears common for central Iowa subsoils. Sixty‐four percent of all samples had soil‐test K levels below the 120 mg kg–1 threshold for very low nutrient status for crop production in Iowa. Only 28% of surface soil samples (<15‐cm depth) were considered to have at least optimum nutrient status with concentrations greater than 160 mg kg–1. As K is not an environmentally sensitive nutrient, its management in central Iowa soils has generally been neglected in recent years, particularly when compared with N and P management initiatives. Building awareness of soil K profile concentrations, rather than focusing only on surface concentrations, will be necessary to meet nutrient requirements for 21st century agricultural production.
Strategic management optimization of the regional agricultural sector by means of modern forecast modeling instruments
Authors: Tranchenko Liudmyla , Petrenko Nataliya , Kustrich Liliia , Parubok Nataliya , Tranchenko Oleksandr
Published: October 2018

Under the conditions of Ukraine’s integration into the world economic space, the agricultural sector is one of the priority and strategically important sectors of the national economy. The research objective is to substantiate the theoretical, methodological and methodical principles of strategic management of economic development of the regional agricultural sector and to solve actual problems in order to optimize strategic management based on cognitive scenarios of supply and demand balancing in the agrarian market, probabilistic modeling, which allows the regions to identify the “growth points”, to optimize the sectoral structures of the economy, to improve the quality and efficiency of the developed and implemented scenarios and the strategies of the agroindustrial production development in the region.As a result of the research, a scenario-probabilistic model of economic development of the regional agrarian sector was proposed, which allows to identify the priority directions for the long-term perspective, to adjust the direction of development if necessary, to explore different scenarios of the development of events on the priorities change at the macro level in the conditions of uncertainty and risks.Thus, the practical value of the research enables to predict the strategic development of the agricultural sector of the region and its individual areas by using a systematic approach and compositions of methodological approaches to analysis and forecasting, considering it as a complex and structured system.
Authors: Guil-Bozal Rocío , González-Fernandez Silvia , Mestre José M. , Zayas-García Antonio , Guerrero-Rodríguez Cristina , Olarte-Márquez Paloma Gil
Published: October 2018

It is examined if the relationship empirically demonstrated between health and face-to-face social interactions is confirmed when it is virtual. The objective is to know if the perception of psychological well-being and receiving social support would explain the frequency of participation in virtual social networks (VSN). An ex-post-facto design was applied to a sample of 510 university Internet users (age, M = 22.89, SD = 5.67, 78.9% women). The level of psychological well-being (Spanish adaptation of the Ryff Psychological Well-Being Scale), social support (Family Social Support and Friends questionnaire - AFA) and the frequency of use of VSN are evaluated. To determine the relationships between the variables, correlation and hierarchical regression analyzes were carried out. The relative contribution of the perception of psychological well-being and of obtaining social support in the frequency of VSN use is confirmed, controlling the influences of age and gender. Specifically, the perception of having less ability to dominate the social environment and to obtain social support for friendships through VSN explains and allows predicting the increase in the frequency of use of such networks.
Prevalencia de comorbilidad en pacientes con enfermedad pulmonar obstructiva crónica
Authors: Pedrozo-Pupo John Carlos , Campo-Arias Adalberto , De La Torre Héctor
Published: October 2018

Comorbidity is common in patients with chronic obstructive pulmonary disease (COPD); however, the relationship between comorbidity and quality of life is inconsistent. The objective was to establish the prevalence of comorbidity and the relationship with the quality of life of patients with COPD in Santa Marta, Colombia. A cross-sectional study was designed in which in which participated outpatients diagnosed with COPD. Quality of life was evaluated with the CAT (COPD Assessment Test) instrument; scores higher than ten were considered poor quality of life. The sample was of 292 patients, in ages between 49 and 95 years; 61.6% male. A group of 232 participants (79.5%) presented some comorbidity associated with COPD. Quality of life was reduced in 192 patients (65.8%). Comorbidity did not significantly add to the quality of life (OR = 1.33, 95% CI 0.72-2.45), adjusted for age and sex. It is concluded that comorbidity is very frequent; however, it does not affect the quality of life in patients with COPD in Santa Marta. More research is needed with more participants.
Actitud del personal de enfermería ante la muerte de la persona en la unidad de cuidados intensivos: estudio cuantitativo
Authors: García-Avendaño David Jahel , Ochoa-Estrada Ma. Cristina , Briceño-Rodríguez Isaías Iván
Published: October 2018

En el presente estudio se buscó determinar la actitud de la enfermera ante la muerte de la persona en la unidad de cuidados intensivos. Se realizó un estudio descriptivo no probabilístico, con un muestreo a conveniencia en el que participaron 30 profesionales de enfermería adscritos a una institución de segundo nivel en el estado de Durango, México. Se utilizó el Cuestionario de Actitudes ante la Muerte (CAM), elaborado a partir de la revisión del Death Attitudes and Self-Reported Health – Relevant Behaviors, en una versión cubana. Este incluye 33 reactivos, agrupados para su interpretación en seis sub-escalas: evitación, aceptación, temor, pasaje, salida y perspectiva profesional. Los hallazgos permitieron concluir que el profesional de enfermería está preparado para cuidar la vida, considerando que, a nivel general, acepta la muerte como un hecho inevitable. No obstante, desde la perspectiva profesional del personal de enfermería, la muerte es considerada como un alivio, al ver la carga que evidencian los familiares del paciente en su proceso final.
Clúster de turismo de salud en Colombia: referentes para la competitividad
Authors: Causado-Rodríguez Edwin , Mojica-Cueto Amira , Charris-Fontanilla Arturo
Published: October 2018

El presente artículo presenta parte de los resultados del proyecto de investigación “Estrategias para el incremento de la competitividad mediante la conformación del Clúster de Turismo de Salud en el Área Metropolitana de Bucaramanga -AMB”, requisito para optar al título de Magíster en Desarrollo Empresarial de la Facultad de Ciencias Empresariales de la Universidad del Magdalena. El objetivo del presente escrito consiste en evidenciar los avances de la conformación autónoma del clúster de turismo de salud en Colombia, evaluando metodológica y rigurosamente las perspectivas del mercado de turismo en salud a partir de revisión bibliográfica en inglés y español de carácter institucional público, privado y científico por iniciativa empresarial, y de estudios realizados en regiones de Colombia y a nivel mundial, que han implementado este renglón como opción de desarrollo mediante el aprovechamiento de ventajas competitivas circundantes. Entre los resultados obtenidos se muestran con precisión los ángulos o dimensiones de este fenómeno en el contexto económico y social; además, se destacan los patrones de turismo y, a partir de estos, las razones por las cuales se viene avanzando en la conformación de los diferentes clústeres a nivel nacional, permitiendo apreciaciones profundas en el tema a partir de la visión multisectorial de interés.
Design of Power Density Improvement by Applying Novel Shape of Slit and Notch to Outer Rib of Rotor of Spoke-type Permanent Magnet Synchronous Motor
Authors: Jang Hyungkwan , Cho Sooyoung , Lee Kang Seok , Oh Ye Jun , Lee Ju
Published: October 2018

Objective:

In this study, improvement of power density by applying novel shape of slit and notch to outer ribs of a rotor that reduces magnetic flux leakage in outer rib and increases air-gap magnetic flux density for spe PMSM for a washing machine, was investigated.

Methods:

It is important that motors for home appliance require lower manufacturing cost, high power and high efficiency. In order to increase power, rotor shape is re-designed. In the outer rib of the rotor, magnetic flux leakage occurs by permanent magnet and magnetic flux is saturated which is one of the factors that reduces the power and efficiency. However, if the outer rib is designed to be too thin, the permanent magnet may scatter during high-speed rotation. Therefore, a design considering permanent magnet scattering is necessary. Motor for a washing machine has two operating points that washing mode at constant torque point and dehydrating mode at high-speed point.

Conclusion:

For improvement of higher power density, 2-D finite elements analysis was performed to optimize the parameters of the shape of slit and notch to increase the torque. The torque increases by optimizing width and length of slit shape and notch shape. Finally, with the optimized parameters of shape of slit and notch, stack length was adjusted as per torque requirement for a washing machine motor and power density increases considering the safe factor from stiffness analysis.
Pembelajaran berbasis produksi untuk peningkatan kompetensi membuat gambar kerja teknik mesin siswa SMK
Authors: Pardjono Pardjono , Murdianto Albertus
Published: October 2018

PRODUCTION-BASED LEARNING TO IMPROVE COMPETENCE IN MAKING MECHANICAL ENGINEERING DRAWINGS OF VOCATIONAL STUDENTSThis study is aimed at improving quality of learning process of Mechanical Drawing by employing Production Based Training to achieve mechanical drafter competency. Consecutively this research will also develop teacher's professionalism in managing learning process of Mechanical Drawing at SMK Sf Mikael.This classroom action research was conducted in SMK St. Mikael Surakarta. Grade XI was assigned to be subject of this research. Two collaborators were assigned to back up and assist the researchers to monitor the effects of action on student competency in mechanical drawing. The changes due to the action are monitored through observation by involving the two collaborators. The collected data was analyzed descriptively. The data analysis resulted in the following findings: (a) production based learning improves students achievement in reaching the minimum mastery criteria on Mechanical Drawing and more specifically improves student competency in producing machining industries standardized of Mechanical Working Drawing, (b) a process of expertise acquition in mechanical working drawing through combination of constructivism learning principles, behaviorism, situated learning and cognitive apprenticeship; (c) the production-based learning increases students' ability behave discipline and attitude toward mechanical drawing, and (d) production based learning was implemented through classroom discussion on the mechanical drawing principles, its implementation on working drawings, integrating knowledge on components stradard as well as production process into working drawing.
Kesiapan SMK dalam pelaksanaan uji kompetensi keahlian dalam rangka ujian nasional
Authors: Samsudi Samsudi
Published: October 2018

READINESS OF VOCATIONAL SCHOOL IN THE IMPLEMENTATION OF THE COMPETENCE TEST EXPERTISE IN THE FRAMEWORK OF NATIONAL EXAMINATIONCompetency examination in Vocational School national examination started in 2006/2007 needs researches, one of them is those regarding to the readiness and implementation in the field. It is based on the reality that the schools' conditions are vary, from locations, internal conditions, and stakeholders' supports. This reasearch's objective is to describe vocational schools' readiness on test location, internal accessors and examiners, infrastructures (rooms, materials, tools), time of implementation, length of time for competency examination, procedures, and mechanism. The discussion of those are divided into two locations, namely province and regency.
Pengembangan modul pembelajaran konstruktivistik kontekstual berbantuan komputer dalam matadiklat pemesinan
Authors: Munadi Sudji
Published: October 2018

DEVELOPING OF COMPUTER ASSISTED CONTEXTUAL CONSTRUCTIVE LEARNING MODULE IN THE MACHINE TRAININGThis research was aimed at investigating constructivist learning model for machining process. Interactive Computerised Module of constructivist teaching principle has been developed at the first year of research. This further research was aimed at implemention of the module and its effectiveness. This research was carried out by means of Research and Development. Data was analysed descriptively. The research investigated, that: module have satisfied feasibility both in theoretical and empirical aspects. There are three roles of module: (1) as media, (2) as supporting media in practice, (3) as interactive and individual learning. The implementation of module into teaching and learning should not in uniform manner within different teachers and facitlities for vocational schools.