bluuebunny/crossref_metadata_2025 huggingface dataset:
RİSKE MARUZ DEĞER (RMD) HESAPLAMA YÖNTEMLERİ: İMKB ÜZERİNE UYGULAMA
Authors: ÖZDEN Ünal Halit
Published: February 2020

Türkiye gibi krizlerin sıklıkla yaşandığı ekonomilerde, risk faktörlerinin ekstrem hareketlerinin ölçülmesi gerekmektedir. Özellikle Kasım 2000 ve Şubat 2001 ’de ülkemizin maruz kaldığı ağır ekonomik krizler nedeniyle bu risk faktörlerinin belirlenmesi, ölçülmesi ve değerlendirilmesi daha önemli hale gelmiştir. Kriz durumunda riskin ölçülebilmesi için istatistiksel yöntemlere ihtiyaç duyulur. Deloitte&Touche Danışmanlık tarafından 1999 yılında dünya ölçeğinde 70 bankayı kapsayan bir risk yönetimi anketinde, katılımcıların %79’u risk ölçümünde en iyi yöntemin “Value at Risk” (riske maruz değer) olduğunu belirtmişlerdir. Ankete katılanlardan %47’si riske maruz değer hesaplama yöntemlerinden parametrik yöntemi, %7’si tarihsel simülasyonu, %6’sı ise Monte Carlo simülasyon yöntemini kullanmaktadır. Bunun yanı sıra %30’u da birden çok yöntemi aynı anda uygulamaktadır.
Bu çalışmada kriz sonrası risk ölçümünde Türkiye’de kullanılmaya başlanılan “riske maruz değer” hesaplama yöntemleri açıklanacaktır. Bu yöntemlerin her biri İMKB verileri üzerinde uygulanarak karşılaştırılmaları yapılmıştır.
VADE YAPILARINA GÖRE YABANCI SERMAYE HAREKETLERİNİN BÜYÜME ÜZERİNE ETKİLERİ: TÜRKİYE ÖRNEĞİ
Authors: GÜRİŞ Burak
Published: February 2020

Dünya ekonomisinde bulunan başlıca iki küreselleşme evresinden ilki sanayi devrimi ile başlayıp Dünya savaşları ile kesintiye uğramış, İkincisi ise 1970’li yıllardan başlayarak teknolojinin hızını da arkasına alarak günümüze kadar gelmiştir. Türkiye ekonomisi 1989 yılında yayınladığı 32 sayılı kanun hükmünde kararname ile dışa açılma sürecini tamamlamıştır. Küreselleşmenin sonucu olarak hızla artan sermaye hareketlerinin vade yapılarına göre Türkiye ekonomisinin büyüme hızı üzerine etkisi VAR model aracılığı ile araştırılmış ve kısa vadeli sermaye hareketlerinde meydana gelecek olan şoka büyüme oranının, uzun vadeli sermaye hareketlerindeki şoka oranla daha duyarlı olduğu, bu nedenle de kısa vadeli sermaye hareketlerinin kriz yaratıcı etkisinin var olduğu sonucuna varılmıştır.
KÜRESELLEŞME SÜRECİNDE YENİ BİR İLETİŞİM ORTAMI
Authors: YÜKSEL Müberra
Published: February 2020

Yeni iletişim ortamında reklam oyunları internet pazarlaması ile çevrimiçi oyunları birleştiren, stratejik konumlandırmaya dayalı yeni bir iletişim türüdür. Bu yeni tür ve mecrada amaç, ürünlerin pazar payını arttırmaktan ziyade, oyunlar vasıtasıyla, işletme, ürün ya da hizmet markalarının müşterilerin zihninde iz bırakmasıdır.
Bu çalışmada, ilk önce, etkili bir reklam oyununun ana özelliklerini erişilebilirlik, zorluk derecesi, firma, marka ya da ürün ile ilinti, rekabet düzeyi, akışı sürdürebilme kapasitesi, web günlüğü olarak belirledik. Son üç özelliği, fizik kuramlarından esinlenen oyuna ilişkin kuramlar ışığında değerlendirdikten sonra, örneklemimizdeki çevrimiçinde aktif olan reklam oyunlarını bu temel ölçütlere göre inceledik ve reklam oyunlarının iliştirilmişliğini sorguladık.
Bulgularımız diğer pazarlama iletişim araçları gibi reklam oyununun da özelliklerinin reklamı yapılan markanın kişiliği, hedef kitlenin profili, Internet ortamının özellikleri ve iletişim kampanyasının stratejik amaçlarına cevap vermek zorunda olduğu ve reklam oyunlarının yeni medyada yeni bir pazarlama iletişimi türü olduğudur.
Acute Kidney Damage in Pregnancy: Etiopathogenesis, Diagnostics and Basic Principles of Treatment
Authors: Draskovic Branislava , Nikolic Tomislav , Jacovic Sasa , Petrovic Dejan
Published: February 2020

Acute kidney damage associated with pregnancy occurs in 1/20.000 pregnancies. In developing countries, the main cause of the development of acute kidney damage is septic abortion, and preeclampsia in the developed countries of the world. Preeclampsia is defined as newly developed hypertension, proteinuria and swelling in pregnant women after the 20th week of gestation. It occurs due to disorders in the development of placenta and systemic disorders of the function of the endothelium of the mother. It is treated with methyldopa, magnesium sulfate and timely delivery. Urgent delivery is indicated if the age of gestation is ≥ 34 weeks. HELLP syndrome is a difficult form of preeclampsia. Its main characteristics are decreased platelet count, microangiopathic hemolysis anemia, increased concentration of aminotransferase in the serum and acute kidney damage. Severe HELLP syndrome is treated with emergency delivery, antihypertensives, magnesium sulfate, and in some cases plasmapheresis and hemodialysis. Acute fatty liver in pregnancy occurs because of decreased activity of the LCHAD enzyme of the fetus. Due to the reduced beta oxidation of fatty acids in the hepatocytes of the fetus, long chain fatty acids that cause damage to the mother’s hepatocytes are released. Swansea criteria are used for diagnosis, and the difficult form of the disease is treated with plasmapheresis and extracorporeal liver support. Atypical HUS is due to a reduced protein activity that regulates the activity of the alternative pathway of the complement system. Its main features are thrombocytopenia, microangiopathic hemolytic anemia and acute kidney damage. It is treated with plasmapheresis, and in case of resistance with eculizumab. Thrombotic thrombocytopenic purpura is due to decreased activity of the ADAMTS13 enzyme. It is characterized by thrombocytopenia, microangiopathic hemolytic anemia, high temperature, nervous system disorders and acute kidney damage. It is treated with plasmapheresis, and severe form of disease with corticosteroids and azathioprine. Early detection and timely treatment of acute kidney damage provides a good outcome for the mother and fetus.
The Uncredited
Authors: Nooney Laine
Published: February 2020

In the fall of 1980, the remote, rural Gold Rush town of Oakhurst, California, became home to Sierra On-Line, a computer game manufacturer that emerged as one of the most successful and iconic game companies of the 1980s and 1990s. Forty years later, Sierra On-Line is long gone from Oakhurst, but its operational and labor infrastructure remain strangely present—a civic palimpsest composed of repurposed buildings, regional archives, local memorials, and the fraying memories of its citizens. This article explores the undocumented dimensions of the computer game industry's supply chain during the final decades of the twentieth century, focusing on the emotional labor and maintenance work involved in sales, customer service, and technical support. Unfolding in three scenes—each pinned to a financial crash, each oriented to the experience of a different female employee—the article traces the material and affective networks that made gaming possible and computers thinkable as machines of everyday life in the late twentieth-century United States.
There and Back Again
Authors: Vossen Emma
Published: February 2020

The cultural ubiquity of The Lord of the Rings has shaped our contemporary assumptions about what the fantasy genre looks like, and these assumptions have in turn determined to a great extent what video games look like both historically and today. The Lord of the Rings and video games are, sadly, both well known for their lack of diversity, and this article argues that that is no coincidence. Focusing on the impact of the life and work of J. R. R. Tolkien, it traces fantasy media from the birth of the genre to the present day to discuss how exclusion is remediated, normalized, and justified. It challenges the racism of the “historical accuracy” fallacy and details how very old sexist literary tropes are continually remediated into contemporary fantasy video games. It asks: What can past discourses surrounding diversity in fantasy media tell us about the resistance to diversity in video games in the present?
Adiponectin stimulates glucose uptake in mouse blastocysts and embryonic carcinoma cells
Authors: Burkuš J , Navarrete Santos A , Schindler M , Babeľová J , Jung J S , Špirková A , Kšiňanová M , Kovaříková V , Fischer B , Koppel J , Fabian D , Čikoš Š
Published: February 2020

Preimplantation embryos are sensitive to maternal hormones affecting embryonic signal transduction and metabolic functions. We examined whether adiponectin, the most abundantly secreted adipokine, can influence glucose transport in mouse embryonic cells. In mouse blastocysts full-length adiponectin stimulated glucose uptake, while no effect of globular adiponectin was found. Full-length adiponectin stimulated translocation of GLUT8 glucose transporter to the cell membrane; we did not detect significant changes in the intracellular localization of GLUT4 glucose transporter in adiponectin-treated blastocysts. To study adiponectin signaling in detail, we used embryoid bodies formed from mouse embryonic carcinoma cell (ECC) line P19. We confirmed the expression of adiponectin receptors in these cells. Similar to mouse blastocysts, full-length adiponectin, but not globular adiponectin, stimulated glucose uptake in ECC P19 embryoid bodies. Moreover, full-length adiponectin stimulated AMPK and p38 MAPK phosphorylation. These results indicate that besides AMPK, p38 MAPK is a potential target of adiponectin in mouse embryonic cells. AMPK inhibitor did not influence the adiponectin-stimulated p38 MAPK phosphorylation, indicating independent action of these two signaling pathways. In mouse embryos adiponectin acts as a hormonal regulator of glucose uptake, which becomes especially important in phases with reduced levels of circulating insulin. Our results suggest that adiponectin maintains the glucose supply for early embryos under hypoinsulinaemic conditions, for example, in mothers suffering from type 1 diabetes mellitus.
Política Comercial de Estados Unidos: Una Revisión de los Alcances de la Administración Trump
Authors: Solano Aguilar Gerald , Rivera Hernández Jorge , Blanco Fonseca Geovanny
Published: February 2020

Los parámetros de la política comercial de los Estados Unidos han experimentado una serie de cambios drásticos con la llegada del Presidente Donald Trump a la Casa Blanca.  Sus posturas proteccionistas, así como sus ataques en contra de los sistemas multilaterales que regulan el comercio internacional, han terminado por provocar un cambio sistemático en las relaciones comerciales de la nación norteamericana.  El siguiente trabajo de investigación recopila las posturas que antecedieron a la administración actual, así como las prioridades y promesas realizadas por el actual presidente norteamericano en razón de proteger los intereses nacionales de los Estados Unidos.  De la misma forma, el presente artículo hace una revisión sobre los efectos y alcances de la política comercial llevada a cabo por Donald Trump en el inicio de su administración.
Modelling and investigation of temperature field in the boundary layer of biological bodies
Authors: Khapko Bogdan
Published: February 2020

A problem on finding temperature field in the boundary layer of biological body when blood perfusion coefficient depends on coordinate is solved. Temperature distribution is caused by the temperature differences between the inside and outside of a body and by the outside heat sources and metabolic heat generation. Heat transfer problem is formulated by using generalized Heaviside functions. Applying the variation of constants method this problem is reduced to the Fredholm integral equation of the second kind. Numerical method of Simpson quadratures was used to solve integral equation. Analysis of temperature distribution in the boundary layer for some cases of boundary conditions is performed. Dependence on temperature inside body from metabolic heat generation and outside heat source is analyzed.
Vibration of orthotropic cylindrical shell with a set of inclusions of arbitrary configuration
Authors: Shopa Tetiana
Published: February 2020

In the framework of the refined theory, which takes into account transverse shear deformation and all inertial components, the solution of the problem on the steady state vibrations of the orthotropic closed cylindrical shell with the arbitrary number of rigid inclusions of the arbitrary geometrical form, orientation, and location is constructed. External boundaries of the shell are of the arbitrary geometrical configuration. Arbitrary harmonic in time boundary conditions are considered on the external boundaries of the shell. The inclusions have different types of connections with the shell. The solution is built on the basis of the indirect boundary elements method and the sequential approach to the representation of the Green's function. The boundary value problem is reduced to the system of algebraic equations.
New Modification of Behl's Method Free from Second Derivative with an Optimal Order of Convergence
Authors: Wartono Wartono , Agustiwari Revia , Rahmawati Rahmawati
Published: February 2020

AbstractBehl’s method is one of the iterative methods to solve a nonlinear equation that converges cubically. In this paper, we modified the iterative method with real parameter β using second Taylor’s series expansion and reduce the second derivative of the proposed method using the equality of Chun-Kim and Newton Steffensen. The result showed that the proposed method has a fourth-order convergence for b = 0 and involves three evaluation functions per iteration with the efficiency index equal to 41/3 = 1.5874. Numerical simulation is presented for several functions to demonstrate the performance of the new method. The final results show that the proposed method has better performance as compared to some other iterative methods.Keywords: efficiency index; third-order iterative method; Chun-Kim’s method; Newton-Steffensen’s method; nonlinear equation. AbstrakMetode Behl adalah salah satu metode iterasi yang digunakan untuk menyelesaikan persamaan nonlinear dengan orde konvergensi tiga. Pada artikel ini, modifikasi terhadap metode iterasi menggunakan ekspansi deret Taylor orde dua dengan parameter β  dan turunan kedua dihilangkan menggunakan penyetaraan dari metode Chun-Kim dan Newton-Steffensen. Hasil kajian menunjukkan bahwa metode iterasi yang diusulkan memiliki orde konvergensi empat untuk b = 0 dan melibatkan tiga evaluasi fungsi setiap iterasinya dengan indeks efisiensi sebesar 41/3 = 1,5874. Simulasi numerik dilakukan terhadap beberapa fungsi untuk menunjukkan performa modifikasi metode iterasi yang diusulkan. Hasil akhir menunjukkan bahwa metode iterasi tersebut mempunyai performa lebih baik dibandingkan dengan beberapa metode iterasi lainnya.Kata kunci: indeks efisiensi; metode iterasi orde tiga; metode Chun-Kim; metode Newton- Steffensen; persamaan nonlinear.
Estimation Parameter d in Autoregressive Fractionally Integrated Moving Average Model in Predicting Wind Speed
Authors: Octaviyani Devi Ila , Wijaya Madona Yunita , Fitriyati Nina
Published: February 2020

AbstractWind speed is one of the most important weather factors in the landing and takeoff process of airplane because it can affect the airplane's lift. Therefore, we need a model to predict the wind speed in an area. In this research, the wind speed forecast using the ARIMA model is discussed which has differencing parameters in the form of fractions. This model is called the ARFIMA model. In estimating differencing parameters two methods are considered, namely parametric and semiparametric methods. Exact Maximum Likelihood (EML) is used under parametric method. Meanwhile, four methods semiparametric estmation are used, i.e Geweke and Porter-Hudak (GPH), Smooth GPH (Sperio), Local Whittle and Rescale Range (R/S). The result shows the best estimation method is GPH with the selected model is ARFIMA (2,0.334,0).Keywords: ARFIMA, Parametric Method, Semiparametric Method. AbstrakKecepatan angin merupakan salah satu faktor cuaca yang penting dalam proses pendaratan dan tinggal landas pesawat karena dapat mempengaruhi daya angkat pesawat. Oleh karena itu, diperlukan suatu model untuk memprakirakan kecepatan angin di suatu wilayah. Artikel ini membahas prakiraan kecepatan angin dengan menggunakan model ARIMA yang memiliki parameter differencing berupa bilangan pecahan. Model ini disebut model ARFIMA. Pada estimasi parameter differencing terdapat dua metode yang digunakan pada penelitian ini, yaitu metode parametrik dan metode semiparametrik. Metode parametrik yang digunakan adalah Exact Maximum Likelihood (EML) dan empat metode semiparametrik yang digunakan adalah Geweke and Porter-Hudak (GPH), Smooth GPH (Sperio), Local Whittle dan Rescale Range (R/S). Hasil analisis menunjukkan pada kasus ini metode estimasi terbaik adalah GPH dengan model terpilih adalah ARFIMA(2,0.334,0).Kata kunci: ARFIMA, Metode Parametrik, Metode Semiparametrik.
Institutionalism of rational choice: theoretical and methodological foundations and Ukrainian political science
Authors: Баштанник О. В.
Published: February 2020

It has been substantiated that the use of a research strategy of rational choice institutionalism was one of the factors that contributed to a return to the institutional theory of policy analysis individual dimension in the paper. Possibilities to achieve utility and distribution of resources in society at the political process micro-level began to be considered as sufficiently important resultants of functioning of the institutional system alongside macro-politics. In addition, it is specified that application of the methodology of the STEM subjects has allowed characterizing the activities of political institutions using the terms of effectiveness, which led to a reorientation of the study of their informal varieties as real regulators of political behaviour. However, the interest in empirical development has created the danger of rationalizing the politics up to its dehumanization, whereof avoiding, according to foreign political scientists, is possible adhering to ethical constraints that arise from the peculiarities of complex human nature.As a result of the analysis held, it has been found that, unlike the studies of foreign experts who distinguish various substantive areas of analysis in the theory of rational choice institutionalism, the applied potential of implementation of elements of its methodology in the works of Ukrainian scientists is rather instrumental. The general conclusion is that the research strategy of this version of new institutionalism in the practical plane is used mainly as one of many methodological approaches to the study of different political phenomena and processes. To some extent, similar to the particular area of research that reveals the analytical resource of rational choice institutionalism is to study the peculiarities of formation and functioning of parliament and the related processes (electoral strategies and coalition arrangements).It is emphasized that the most interesting for us may be the segment of scientific works, which are based on the theory of rational choice institutionalism, and related to the analysis of those factors that may impede democratic transformations in transitional political systems. It can be argued that inefficient political institutions, despite their irrational nature, continue to function in the political system because they are the product of a rational choice of influential political actors. In this case, the understanding of the very concept of rationality is distorted, which from an absolute category is transformed into a relative one, not only because of the limitations associated with the action of moral and ethical factors, but mainly due to maintenance of an inefficient institutional equilibrium, i.e. an institutional trap.
Regional cloud of public administration as a component of the e-government of Ukraine
Authors: Кандзюба С. П.
Published: February 2020

The implementation of modern technologies will allow to get the maximum effect from the functioning of the e-government system and to overcome technological backwardness of Ukraine from other countries of the world. The development of information and communication technologies is very rapid, so their research, analysis and formulation of proposals for use is an urgent task. The theoretical bases of creation of regional cloud of public administration, examples of its use are considered.Suppliers of cloud services and information resources to the regional cloud are identified: central authorities, regional authorities and IT companies. Unlike the first two cloud service delivery channels, the third channel is booming around the world and offers a wide variety of software. The most well-known software vendors as services (SaaS) are Google and Microsoft.Possibilities of Google services are considered in two examples: organization of public servants' collective work through online office and creation of unified information and educational space for training and raising qualification of civil servants and local government officials of the region.In the first example, it is noted that in most Ukrainian electronic document management systems, opportunities for teamwork on a draft document are very limited. This requires an online office. Possibilities of Google services, in particular the G Suite, for public servants teamwork due to availability an online office are enormous.The second example draws attention to the fact that the ability to share corporate services beyond the cloud means that educational materials can be accessed, if necessary, to users who do not have a Google corporate account but have a Google individual account. This opens up great opportunities for involving public servants, employees of communal organizations, institutions and enterprises in distance learning through the use of educational service in the regional cloud of public administration.The implementation of a regional cloud of public administration with the help of multicloud is proposed.
Principles and conditions of formation of typical organizational structures of border subsidiaries
Authors: Мейко О. В.
Published: February 2020

Необходимость создания новой системы охраны государственной границы с Российской Федерацией и другими соседними государствами в качестве гарантии суверенитета государства и обеспечения национальной безопасности, повышения эффективности реализации государственной политики в области безопасности государственной границы, внедрения европейских стандартов интегрированной границы Управление и создание условий для реализации прав и свобод человека, развитие приграничного сотрудничества требует создания эффективных организационных структур пограничных подразделений. В статье рассматриваются вопросы основных принципов и условий формирования типовых организационных структур, излагаются особенности их трансформации для пограничных подразделений. Анализируется соответствующая научная литература отечественных и зарубежных авторов. Приведен пример организационной структуры оперативно-боевого пограничного коменданта. Анализируются и обосновываются принципы формирования организационной структуры пограничного подразделения: функциональные, территориальные, функционально-типовые, проектные, смешанные, по стратегическим центрам.Проанализирована классификация организационных структур. Раскрыто содержание основных определений: органическая структура, бюрократическая структура, структура адхократии. Типы представленных сетевых организаций. Классификация организационных структур пограничных подразделений анализируется по ключевым элементам. Охарактеризованы фрагменты разделения ответственности компонентов сектора безопасности и обороны Украины за организацию планирования, реагирование на угрозы и при выполнении задач по назначению. В результате сделан вывод о необходимости разработки инструментов (теоретических основ) для решения проблемы синтеза организационной структуры пограничных подразделений или их отдельных элементов.
Analysis of migration processes in the EU and the theory of multiculturalism: current state and prospects
Authors: Пашков В. О. , Правдін В. І.
Published: February 2020

The article deals with the problem of the migration crisis that has hit the EU. Since 2015, there has been a sharp increase in the number of refugees from the region, to which European countries were not ready. By the end of 2019, Europe has already exhausted its economic capacity to receive and accommodate refugees, but their flow is continuing. Over the last 5 years, more than 4 million refugees from the Middle East, North Africa and South Asia have come to Europe. In 2015, the flow of migrants was over 1.5 million people, in 2016 - 900 000, in 2017 - 650 000, in 2018 - 600 000, in 2019 - almost 550 000.The main causes of large-scale movement of migrants to Europe have been identified. Among them are wars and conflicts that destabilize the situation in their native countries; demographic outbreak in Africa and the Middle East, deteriorating funding for refugee camps in Turkey, Lebanon and Jordan, exacerbation of the 2018-2019 Syrian crisis; the availability of high social guarantees and diaspora relatives in many EU countries.The political, social, cultural consequences of the migration crisis for individual countries and the EU are analyzed. The increasing flow of refugees has exacerbated in European societies the problems of terrorism, the increase in crime rates, the poor cultural compatibility of the local population with refugees, the increased right-wing sentiment and the high social costs of migrant adaptation.The importance of the ideology of multiculturalism for the current migration crisis in the EU is substantiated. The phenomenon of multiculturalism is compared with the phenomena of globalization and shows the impact on the situation in society, which lead to conflict. Multiculturalism has recently been perceived as a means that can mitigate the negative (primarily for traditional cultures, ethnic and religious groups) consequences of globalization, but narrowing the philosophical view of the phenomenon of multiculturalism to the institutional level, modern representatives of the humanities and practices in Europe (political scientists, sociologists, politicians) faced with the fact that the interaction of cultures has not been adequately reflected in theory and held in practice.
Department of mathematical analysis and theory of functions celebrates 100 years!
Authors: Tkachenko M.Ye. , Vakarchuk M.B.
Published: February 2020

In 2019 the Department of Mathematical Analysis and Theory of Functions celebrates its 100th anniversary. The history of its creation and development is given in the article in terms of the anniversary. Great attention is given to the famous mathematicians who have made a considerable contribution to the direction of the department’s scientific school, A.M. Kolmogorov, S.M. Nikolskyi, M.P. Korneichuk, O.P. Timan, V.P. Motornyi, V.F. Babenko are among them. The contemporary stage of the department is highlighted in the article as well.
El acto de crear, una ruta de acercamiento al psiquismo humano y de atención a la psicosis
Authors: Molina Rojas Noilin , Vargas Araya Priscilla
Published: February 2020

El presente escrito se desprende de un proyecto de atención psicológica a través del arte, con la participación de estudiantes, usuarios(as) de la Oficina de Bienestar y Salud (OBS) de la Sede Rodrigo Facio de la Universidad de Costa Rica. El proyecto buscó identificar los alcances de una propuesta de terapia que incorporaba la creación artística como mediación en el proceso terapéutico, a nivel a grupal para la clínica de estudiantes con diagnósticos asociados a las psicosis. El artículo ofrece una discusión sobre las implicaciones clínicas del acto creativo, el impacto terapéutico de los procesos grupales y el papel del acto creativo para la potencialización de habilidades o recursos personales. Los resultados se analizan a la luz de algunos de los aportes de la arteterapia y el Psicoanálisis.
Hacia un nuevo ideal femenino: el pianismo decimonónico de Guadalupe Olmedo y María Garfias
Authors: Barrañón Alejandro
Published: February 2020

En este artículo se hacen comentarios analíticos y contextuales de una selección de obras pianísticas de las compositoras mexicanas Guadalupe Olmedo (1856-1889) y María Garfias (1849-1918) y se muestran paralelismos y diferencias en el discurso musical y el pianismo de ambas. Las partituras aquí comentadas, encontradas en diversos archivos institucionales y privados de México, conforman un repertorio hasta ahora poco abordado que refleja las primeras obras de concierto compuestas por mujeres mexicanas. Garfias estudió con reconocidos maestros y Olmedo, formada profesionalmente en el Conservatorio Nacional de México, fue la primera mujer graduada de la carrera de composición. Las propuestas de ambas fueron audaces: concibieron y plasmaron obras de gran virtuosismo y se apartaron del ideal femenino convencionalmente aceptado en el México decimonónico.
New records of Utricularia (Lentibulariaceae) for the state of Maranhão, Brazil
Authors: Salazar-Ferreira Milena , Gonella Paulo M. , Guarçoni Elidio A.E.
Published: February 2020

We report the first records of Utricularia cutleri Steyerm. and U. resupinata B.D.Greene ex Bigelow from Maranhão, northeastern Brazil. These species were collected in Lençóis Maranhenses National Park. This study adds new information on the flora of Maranhão and extends the distribution of these species in Brazil.
EVALUASI STOK KEPITING BAKAU Scylla serrata (Forskal, 1775) DI PERAIRAN PATI DAN SEKITARNYA SERTA OPSI PENGELOLAANNYA
Authors: Ernawati Tri , Kembaren Duranta Diandria , Sadhotomo Bambang
Published: February 2020

Eksploitasi kepiting bakau secara berlebihan berdampak pada penurunan populasi kepiting bakau sehingga keberlanjutan stok akan terancam. Penelitian ini bertujuan untuk mengkaji status stok kepiting bakau di perairan Pati serta kemungkinan pengelolaannya. Penelitian dilakukan pada April-Desember 2015. Data-data parameter pertumbuhan, rata-rata matang gonad, rata-rata pertama kali tertangkap dan lain-lain sebagai bahan input untuk analisa SPR dan Y/R telah diperoleh pada hasil penelitian sebelumnya. Analisa data dilakukan dengan SPR (Spawning Potential Ratio), Y/R (Yield per Recruit) dan B/R (Biomass per Recruit). Hasil analisa diperoleh SPR sebesar 7%, Y/R sebesar 55,03 gram per recruit (g/r) dan tersisa biomasa per recruit (B/R) sebesar 7,9% dari biomassa virgin. Pada F0.1 dengan nilai F sebesar 1,56 diperoleh Y/R sebesar 49 (g/r) dan tersisa B/R sebesar 15% dari biomassa virgin. Hasil-hasil tersebut menunjukkan bahwa status stok kepiting bakau di perairan sekitar Pati telah mengalami lebih tangkap. Oleh karena itu perlu dilakukan upaya-upaya yang tepat dan rasional dalam pengelolaan, diantaranya dengan penutupan area penangkapan di nursery ground agar kepiting-kepiting muda memiliki peluang untuk tumbuh dewasa, pengurangan upaya penangkapan sebesar 30 – 43% dari upaya yang ada dan penentuan ukuran minimal yang tertangkap pada lebar karapas sebesar 12 cm.
Vibro-compaction at a land reclamation site in Phuket, Thailand
Authors: Chaiyaput Salisa , Bergado Dennes Taganajan , Kovittayanun Nuttaphong
Published: February 2020

Phuket is the biggest island province in Thailand. Located in the southern part of the country, this island is famous and a favourite destination for foreign and Thai tourists alike. Consequently, this province continually develops with booming tourism and hence there is a need for large and advanced infrastructure. Construction projects are increasing each year, but the available land area is limited and land reclamation has therefore become an alternative. Sand backfill material is available on the island. However, the loose sand fill needs to be densified for structural support or structural foundations, and the ground improvement technique called vibroflotation is suitable for improving the sand density in a small area over a short period. This paper presents an assessment of the effectiveness of vibroflotation in the densification of sand fill, which was applied for the first time in Thailand. The standard penetration test values of the sand fill before and after improvement were compared, evaluated and confirmed with regard to liquefaction susceptibility during earthquake occurrences. It was confirmed that the vibroflotation technique can increase the density of sand fill in land reclamation and can increase its bearing capacity as well as prevent liquefaction during earthquakes.
Ambient vibration test and modelling of historical timber mosques after restoration
Authors: Altunişik Ahmet Can , Karahasan Olguhan Şevket , Okur Fatih Yesevi , Kalkan Ebru , Özgan Korhan
Published: February 2020

This paper reports on a study to determine the structural dynamic characteristics, such as natural frequencies, mode shapes and damping ratios, of timber mosques using ambient vibration tests after restoration. Kuşluca historical timber mosque in the Sürmene district of Trabzon, Turkey is selected as a case study. The mosque was built in the early twentieth century with two floors. Restoration projects were prepared in 2008 and the mosque was re-opened in 2011. A finite-element model of the mosque was constituted based on restoration drawings, and modal analysis was performed using orthotropic material properties. A literature review was used to determine the initial dynamic characteristics, such as natural frequencies, mode shapes and damping ratios. Non-destructive experimental measurements were conducted after construction to validate the numerical results using in situ tests. The first three natural frequencies were obtained numerically and experimentally. There was a close agreement between mode shapes, but 30% difference in natural frequencies. To minimise the differences, the finite-element model was updated using manual and automated updating procedures, changing uncertain parameters such as material properties, semi-rigid element connections, boundary conditions and section properties.
Standard Breton, Traditional Dialects, and How They Differ Syntactically
Authors: Jouitteau Mélanie
Published: February 2020

This article provides a first attempt of a syntactic characterization of the different Breton varieties spoken in the twenty-first century. Standard Breton is addressed as one of the modern dialects spoken in Brittany, and its syntax is compared with that of traditional varieties. I
first establish a baseline and inventory the syntactic parameters that differentiate the traditional dialects from each other: Kerne, Leon, Goelo, Treger (KLT in the West) and Gwenedeg (South East). I show that a robust body of syntactic variation characterizes traditional dialects. I next
compare these with the Standard variety that emerged during the twentieth century, and show that if Standard Breton has original features of its own, it varies less with respect to traditional varieties than do traditional varieties among themselves.
KAJI EKSPERIMENTAL PREDIKSI KETEBALAN NITRIDASI PADA BAJA SKD 61 MENGGUNAKAN METODE GELOMBANG ULTRASONIK
Authors: Wanandi Albert Christian , Sutanto Hadi , Himawan Roziq
Published: February 2020

KAJI EKSPERIMENTAL PREDIKSI KETEBALAN NITRIDASI PADA BAJA SKD 61 MENGGUNAKAN METODE GELOMBANG ULTRASONIK. Lapisan yang terbentuk pada permukaan material seperti lapisan karburasi pada bagian dalam pipa menyebabkan permukaan pipa tersebut mengalami pengerasan, dan apabila terjadi retak, retak tersebut dapat memicu kebocoran. Pencegahan terjadinya kerusakan tersebut memerlukan dilakukannya pengukuran ketebalan lapisan, dengan metode tidak merusak. Pada penelitian ini akan dikembangkan metode pengukuran lapisan tipis pada material dengan metode ultrasonik. Lapisan tipis dibuat dengan proses nitridasi yang mewakili lapisan akibat karburasi pada pipa. Spesimen terbuat dari material baja SKD61. Proses nitridasi menghasilkan ketebalan lapisan berbeda-beda yaitu 59 µm, 102 µm, dan 160 µm. Metode ultrasonik yang digunakan adalah metode Ultrasonic Water Immersion menggunakan satu Probe dan defocusing. Besaran yang dijadikan acuan adalah cepat rambat gelombang permukaan Rayleigh. Hasil eksperimen menunjukkan bahwa metode defocused tidak memperlihatkan pengaruh ketebalan lapisan nitridasi pada cepat rambat gelombang Rayleigh, sementara metode satu probe memperlihatkan pengaruh ketebalan lapisan nitridasi terhadap cepat rambat gelombang Rayleigh.Kata kunci: lapisan nitridasi, ultrasonic water immersion, gelombang permukaan, defocusing, metode satu probe
MODELLING OF RSG-GAS HEAT EXCHANGER FOR STEADY-STATE SIMULATION
Authors: Ekariansyah Andi S
Published: February 2020

MODELLING OF RSG-GAS HEAT EXCHANGER FOR STEADY-STATE SIMULATION. The multipurposes reactor G.A Siwabessy (RSG-GAS) is a open pool, water cooled reactor with plate type fuel elements having thermal power of 30 MWt. Its design has been a subject for research in term of its safety against postulated design basis accident. For the purpose of safety analysis, its complete design have been modelled using various thermalhydraulic code, which has to be validated for the steady-state condition. The model generated so far did not include the model of the heat exchanger as it is designed and described in the RSG-GAS design specification. Therefore the purpose of this research is to obtain a heat exchanger model as realistic as possible using the RELAP5/ SCDAP/Mod3.4 code. From the generated model, the performace of the heat exchanger design will be evaluated to analyze its effect on the steady-state simulation during RSG-GAS full power. The simulation results show that the performance of the obtained heat exchanger model has been validated with the design specifications to remove the core heat during the full power simulation. On that condition, the inlet secondary temperature and loss coefficient plays important role in taking the inlet and outlet primary temperature to be close with the experimental data and other RSG-GAS model.Keywords: RSG-GAS, heat exchanger model, RELAP5, steady state simulation, performance
ESTIMASI PERUBAHAN KALOR SELAMA KENAIKAN TEMPERATUR AIR DI UNTAI PRE-FASSIP-02
Authors: Sofyan Ahmad Rofiq , Haryanto Dedy , Witoko Joko Prasetyo , Giarno Giarno , Juarsa Mulya
Published: February 2020

ESTIMASI PERUBAHAN KALOR SELAMA KENAIKAN TEMPERATUR AIR DI UNTAI PRE-FASSIP 02. Kecelakaan reaktor nuklir Fukushima terjadi dipicu oleh bencana alam gempa bumi dan Tsunami. Kerusakan yang terjadi pada teras reaktor akibat kegagalan sistem aktif selama proses pendinginan panas sisa peluruhan reaksi fisi berantai (residual heat). Sehingga, perlu pengembangan sistem pendingin pasif yang menggantikan sistem aktif untuk pendinginan teras ketika terjadi Stasiun Black Out (SBO) akibat pemadaman reaktor. Sistem pendingin pasif bekerja berdasarkan fenomena sirkulasi alam dari daerah panas menuju daerah dingin dalam satu untai tertutup. Sehingga untuk kebutuhan studi eksperimen terhadap pola aliran sirkulasi alam, maka dibuat fasilitas uji Untai PreFASSIP-02. Tujuan penelitian adalah untuk memperkirakan perpindahan kalor dari bagian panas menuju bagian dingin pada Untai Pre-FASSIP-02. Hasil eksperimen menunjukan bahwa proses pemanasan yang terjadi pada tabung heater semakin lama menyebabkan kenaikan temperatur air. Nilai kalor rata-rata yang diberikan oleh heater pada air untuk temperatur rata-rata 61,6 °C selama dua jam eksperimen adalah 1264,9 kJ dan besarnya kalor yang diterima kolam ECT hanya 150, 4 kJ. Kalor tersebut memanaskan air hingga terjadi aliran sirkulasi alam yang membuat temperatur di TH out dan ECT meningkat meski dengan kenaikan yang kecil. Kenaikan temperatur air di TH out dan ECT yaitu masing-masing 35,57 °C dan 0,07 °C. Artinya perubahan kalor di dalam untai yang terjadi cukup kecil dan rugi kalor yang terjadi besar, menyebakan kenaikan temperatur air di ECT tidak akan mencapai titik didihnya.Kata kunci: estimasi, kalor, temperatur, sirkulasi alam, sistem pasif, Pre-FASSIP-02
Studi Radiolisis Air Ringan dan Pengukuran Laju Dosis Bahan Bakar Terhadap Jarak Sumber Radiasi Pada Kolam Penyimpanan Bahan Bakar Bekas (ISSF)
Authors: Agustin Cyntia , Romli M , Butar-butar Sofia Loren , Kusumastuti Rahayu , Sriyono Sriyono , Sunaryo Geni Rina
Published: February 2020

Studi Literatur Radiolisis Air Ringan dan Pengukuran Laju Dosis Bahan Bakar Terhadap Jarak Sumber Radiasi  Pada Kolam Penyimpanan Bahan Bakar Bekas (ISSF). . Elemen bahan bakar bekas masih mengandung sejumlah uranium diperkaya dengan paparan radiasi yang sangat tinggi, sehingga digunakan air sebagai media penyimpanan bahan bakar bekas pada kolam ISSF agar paparan radiasi bahan bakar tidak keluar ke lingkungan.Paparan radiasi dalam air dapat menyebabkan adanya pembentukan oksidator yang dapat menyebabkan korosi pada material bahan ISSF. Laju dosis dapat terukur dalam suatu sumber radiasi terhadap besarnya penahan radiasi. Laju dosis ini digunakkan sebagai input parameter untuk reaksi radiolysis sehingga konsentrasi pembentukan oksidator dalam air dapat diprediksi. Hubungan antara laju dosis teradap jarak sumber radiasi (tebal penahan) menjadi penting untuk penerapan proteksi radiasi. Metode untuk mengukur laju dosis pada kolam ISSF dilakukan pada rak bahan bakar bekas serta uji cicip pada sebuah kelongsong bahan bakar bekas. Laju dosis diukur dengan detector radiagem dengan kabel yang terbungkus plastik. Data hasil percobaan didapatkan bahwa hubungan antara laju dosis radiasi terhadap sumber radiasi yaitu semakin besar jarak detektor terhadap sumber radiasi semakin kecil laju dosis yang terukur dan bersifat eksponensial.Kata Kunci : Kolam ISSF, radiasi, radiolysis air, laju dosis, detector
Analisis Kritikalitas Tinggi Teras Aktif HTGR-10 MWth Dengan Variasi Pengayaan pada Kernel Uranium Oksida
Authors: Adrial Hery -
Published: February 2020

ANALISIS KRITIKALITAS TINGGI TERAS AKTIF  HTGR-10MWth DENGAN VARIASI PENGAYAAN PADA KERNEL URANIUM OKSIDA. HTGR-10MWth merupakan salah satu bentuk dari reaktor HTGR tipe pebble bed. Reaktor jenis ini memiliki reaktivitas negatif sebagai fungsi keselamatan melekatnya. Dalam fisika reaktor, parameter kritikalitas merupakan faktor penting untuk mengetahui kondisi kekritisan reaktor, yang menjadi penentu apakah reaktor dapat beroperasi atau tidak. Kritikalitas pada teras aktif suatu reaktor sangat dipengaruhi oleh ketinggian teras aktif, tingkat pengayaan bahan bakar, geometri teras reaktor dan parameter lainnya. Tujuan dari penelitian ini adalah untuk mendapatkan parameter neutronik yang sesuai agar reaktor dapat beroperasi secara optimal. Metodologi yang dilakukan adalah dengan melakukan pemodelan kernel berlapis TRISO dengan model berbentuk kisi-kisi SC (simple cubic), dan pemodelan geometri reaktor. Bahan bakar dan moderator pebble pada teras reaktor dimodelkan dalam bentuk kisi BCC (body-centered cubic) dengan rasio perbandingan pebble bahan bakar dan pebble moderator sebesar 57:43. Paket program MCNP6 digunakan dalam analisis ini. Dari hasil perhitungan, didapat bahwa tinggi teras aktif kritis awal untuk pengayaan 17 % adalah 125 cm, pengayaan 14 % setinggi 141 cm, pengayaan 12 % adalah 161 cm dan pengayaan 10 % adalah 196,1 cm. Sementara, tinggi teras aktif penuh untuk pengayaan 8 % melebihi batas tinggi teras yang tersedia.
Evaluasi Klasifikasi Struktur, Sistem, dan Komponen RSG-GAS Terhadap Manajemen Penuaan
Authors: Hastuti Endiah Puji
Published: February 2020

EVALUASI KLASIFIKASI STRUKTUR, SISTEM, DAN KOMPONEN RSG-GAS TERHADAP MANAJEMEN PENUAAN. Pada Saat ini RSG-GAS telah beroperasi selama 30 tahun.  Sesuai peraturan BAPETEN, mengenai Penilaian Keselamatan Berkala, evaluasi harus dilakukan setiap 10 tahun. Untuk memenuhi persyaratan tersebut perlu dilakukan evaluasi dan analisis sistem secara menyeluruh. Hasil evaluasi melalui analisis ini diperlukan sebagai data dukung permohonan perpanjangan izin operasi ke BAPETEN. Untuk memenuhi persyaratan tersebut, maka salah satu tugas yang perlu dilakukan adalah evaluasi penapisan komponen kritis. Evaluasi dilakukan terhadap penapisan/pengelompokan struktur, sistem dan komponen (SSK) RSG-GAS dengan cara menganalisis klasifikasi SSK RSG-GAS berdasarkan tinjauan terhadap Perka BAPETEN terkait SSK dan Safety kriteria IAEA mengenai reaktor riset. Metode kedua adalah telaah terhadap laporan perawatan dan perbaikan terhadap SSK yang termasuk dalam kriteria kelas keselamatan terutama pada tipe A. Klasifikasi SSK RSG-GAS yang terdiri atas 1. kelas keselamatan (safety class), 2. kelas kualitas (quality class), dan 3. kelas seismik (seismic class), telah memenuhi kriteria Perka BAPETEN 8/2008 mengenai manajemen penuaan reaktor non daya dan Perka  BAPETEN 1/2011 mengenai desain keselamatan reaktor non daya, serta memenuhi kriteria keselamatan IAEA SSR3 mengenai klasifikasi struktur, sistem dan komponen reaktor riset. Hasil analisis terhadap kesesuaian klasifikasi SSK RSG-GAS terhadap Perka BAPETEN No. 8/tahun 2008 tentang ketentuan keselamatan manajemen penuaan reaktor nondaya, IAEA SSR3 mengenai keselamatan reaktor riset, serta hasil rekam data operasi sistem RSG-GAS pada kondisi terkini  dapat disimpulkan bahwa kualifikasi SSK tersebut masih sesuai dengan persyaratan manajemen penuaan sehingga memberikan keyakinan terhadap kelangsungan operasi RSG-GAS yang aman
A Retrospective Cohort Study of Risk of Gallbladder Disease in Acute Cerebral Infarction Patients
Authors: Lee Suk-Hee , Kim Seongheon , Jang Jae-Won , Lee Seung-Hwan , Kim Young-Ju
Published: February 2020

Background: Gallbladder diseases after acute cerebral infarction are relatively rare, but could have a serious impact on mortality and morbidity of patients. The purpose of this study was to investigate the risk of gallbladder disease in patients with acute cerebral infarction.Methods: This study analyzed a population-based matched cohort constructed using National Health Insurance Service-Senior cohort dataset in South Korea. Subjects after acute cerebral infarction during 2002-2015 were identified as the exposed group, and up to four individual matched for age, sex, and index years were as the controls. The difference of the risk of gallbladder disease between the exposed and control group was evaluated using Cox regression adjusting for hypertension, diabetes, liver diseases, and the modified Charlson Comorbidity Index (mCCI). The risk of gallbladder disease of the exposed group was evaluated using Cox regression analyses to identify the risk factors.Results: The occurrence of the gallbladder disease was significantly associated with the acute cerebral infarction (p<0.0001). The presence of acute cerebral infarction was associated with a higher risk of gallbladder disease (adjusted hazard ratio=1.44, 95% confidence interval=1.26-1.66). The subjects with higher CCI showed higher risk of gallbladder disease. Among acute cerebral infarction patients, the oldest group, subjects having liver diseases, or subjects with the mCCI higher than two were found significant on the risk of gallbladder disease.Conclusions: Our study showed that the acute cerebral infarction has a significant association with gallbladder disease. These results suggested that the possibility of developing of gallbladder disease in patients with acute cerebral infarction should be considered.
Comparative Efficacy of Antidepressants for Symptoms Remission of Gastroesophageal Reflux: A Bayesian Network Meta-Analysis of Randomized Controlled Trails (protocol) v3
Authors: Si Xiaobei , Bi Deying , Huo Linyu , Lan Yu , Zhang Shuo
Published: February 2020

Objective The aim of this study is to compare symptom relieving of antidepressants for gastroesophageal reflux. Methods We plan to include randomized controlled trials (RCTs) that evaluate efficacy of antidepressants for gastroesophageal reflux by searching the MEDLINE, EMBASE, Web of Science, China National Knowledge Infrastructure Database (CNKI), Chinese VIP Information (VIP), Chinese Medical Databases (CMB) and Wan-Fang databases from the starting date of database establishment till September 31, 2019. The words of "gastroesophageal reflux disease", "antidepressant" and their synonyms will be adopted as searching terms. ADDIS 1.16.8 will be used for network meta-analysis, with conduction of node split analysis as well as rank probability analysis. Conclusions The present analysis aims to further compare efficacy of symptom relieving of gastroesophageal reflux among antidepressants, which apply clinical evidence for further therapy of gastroesophageal reflux diseases.