bluuebunny/crossref_metadata_2025 huggingface dataset:
Failure Analysis of a Collapsed Crane Boom
Authors: McCoy Robert A.
Published: May 2019

A 140 ft. (42.7 m) long boom on a dragline crane used in coal strip-mining operations failed. One of the principal load-bearing longitudinal beams or chords of the trussed boom had fractured adjacent to a bolt hole at a location about halfway along the length of the boom. Over the lifetime of the crane, several repairs had been made to the boom. At least a year before the failure, a reinforcing gusset plate had been bolted and welded to this chord at this location. Stereomicroscopy revealed microcracks in the weld metal. A fatigue crack 45 mm (1.8 in.) long was observed to emanate from this microcrack. Scanning electron microscopy showed an overload crack extended across the remaining cross section of the chord. It was concluded that the presence of the bolt hole used to attach the gusset plate to the chord created a stress riser adjacent to the hole. Repeated high tensile stresses on the chord during the lifting of enormous loads initiated a fatigue crack in the weld region adjacent to the bolt hole.
Excavator Boom Lift Equalizer Hose Failure
Authors: Krismer S.
Published: May 2019

The boom lift equalizer hose on an excavator failed and the resultant release of high-pressure hydraulic fluid damaged the operator cabin. The hose was a heavy duty, high-impulse, multiple-spiral wire-reinforced, rubber covered hydraulic hose equivalent to 100R13 specifications as set in AS3791-1991. It had a maximum operating pressure of 34.5 MPa (5000 psi). The failure occurred adjacent to one of the couplings, although some of the wire strands had not broken. The two outer layers of reinforcement wire on the failed end had experienced extensive corrosion, corroding away completely in most areas. This corrosion was fairly uniform around the circumference of the hose. The loss of two spirals/layers of wire reinforcement effectively reduced the pressure carrying capacity of the hose to below that of the maximum operational pressure experienced. Either the hose (or assembly) was already corroded prior to being fitted, or, the hose experienced aggressive conditions causing rapid corrosion of the exposed wire strands.
The Influence of Wear on the Fatigue Failure of a Wire Rope
Authors: Schrems Karol K.
Published: May 2019

The fatigue failure of a wire rope used on a skip hoist in an underground mine has been studied as part of the ongoing research by the Bureau of Mines into haulage and materials handling hazards in mines. Macroscopic correlation of individual wire failures with wear patterns, fractography, and microhardness testing were used to gain an understanding of the failure mechanism. Wire failures occurred predominantly at characteristic wear sites between strands. These wear sites are identifiable by a large reduction in diameter; however, reduction in area was not responsible for the location of failure. Fractography revealed multiple crack initiation sites to be located at other less noticeable wear sites or opposite the characteristic wear site. Microhardness testing revealed hardening, and some softening, at wear sites.
Bakhtin in Shanghai. ‘Chinese lessons’ for Bakhtin studies
Authors: Osovsky O. E.
Published: May 2019

The philosopher M. Bakhtin occupies a unique place in the process of shaping of a new humanistic paradigm. Amid the 1960s crisis in the West, Bakhtin’s key concepts, from ‘carnival’ and ‘polyphony’ to ‘dialogism’, provided a foundation for a common communication code for the humanities, which helped participants of the dialogue to find their mutual points of interest. The 16th International Bakhtin Conference ‘Bakhtin in the Post-Revolutionary Era’, which took place in Shanghai in September 2017, prompted the author to ponder the modern state of international Bakhtin studies and identify certain trends, especially noticeable in the Chinese context of the studies. The multistage reception of his ideas in Russia and abroad reveals a changing treatment of his legacy, much in demand these days, which are typified by a crisis of the humanities. Bakhtin’s stance during and after the revolution, as well as his internal approval of evolutionary, rather than revolutionary, changes in social and cultural history, which are particularly relevant today, suggest that his ideas can be used in the context of polyphonic thinking and new, e. g. digital, technologies.
Turgenev and the Russian liberal idea. Proceedings of the Russian Academic and Practical Conference marking Ivan Sergeevich Turgenev’s 200th birth anniversary
Authors: Galtsova E. D.
Published: May 2019

The review of the book Turgenev and the Russian Liberal Idea... [Turgenev i liberalnaya ideya v Rossii…] focuses on the interpretation of liberalism in Turgenev’s works by Russian scholars of various schools and branches of the humanities. Treatment of liberal ideology always remained at the heart of many scholarly interpretations of Turgenev, yet the researchers were often influenced by political environment. The review emphasizes that the compilers did not care for uniformity of opinion, but were trying instead to present contemporary polemics about Turgenev’s political, philosophical and literary principles. These, the reviewer concludes, make the collection particularly valuable. The book also contains numerous new discoveries about the writer’s life and work.
Postmodernism is dead, and I’m not quite yet
Authors: Kolesnikov A. Y.
Published: May 2019

The article polemicizes about the state of Russian Postmodernist culture in general and the country’s Postmodernist literature, in particular. The author finds that contemporary culture exists at the intersection of two paradigms: a dwindling Postmodernism and a nascent Metamodernism, giving rise to new literary vectors and phenomena. Mass culture appropriates Postmodernist methods and techniques: irony, intertextuality, and play-mode rethinking of classical subjects and ideas. The author observes a transformation of Postmodernism into an assembly line for mass production and consumption. At the same time, Metamodernism inevitably becomes an alternative cultural paradigm. Analyzing the cultural situation, the author references works by the writer V. Pelevin (his novels Generation P, iPhuck 10), rapper poet Oxxxymiron (M. Fyodorov), and other prominent figures of modern Russian culture. The article’s major focus is on Postmodernist irony.
A chaos novel. Aleksandr Goldstein
Authors: Katsman R. V.
Published: May 2019

Devoted to the works of the writer A. Goldstein, the paper focuses on his innovative form of novel: the chaos novel. Fundamental for any novel as a genre, the structuralized concept of history appears as a quality of the discursive, narrative, and poetic chaos itself: not in spite of it, or as its source, but specifically as its quality and manifestation. Describing the ‘chaos’ of Goldstein’s novels, especially his most famous work Remember Famagusta [Pomni o Famaguste], the author uses the term ‘dissipative’ to define its chaotic and simultaneously deterministic structure: he finds it the best term to characterize the author’s writing method. Taking into account the novel’s numerous critical reviews, he comes up with the most detailed analysis of Goldstein’s ‘continuous writing’, which, the critic believes, proves that the development of complex chaotic-deterministic systems of the novel remains one of modern literature’s most vital tasks.
Notes on Easter in Ansali [Paskha v Enzeli]
Authors: Ryzhakov P. B.
Published: May 2019

The article provides an extensive commentary of V. Khlebnikov’s poem Easter in Ansali [Paskha v Enzeli ]. The author discovers and analyses two major plotlines: a documentary (or autobiographical) one and a Stepan Razin-inspired one, both developed in parallel to each other in terms of the metaphors chosen for the poem. The documentary level is concerned with Khlebnikov’s visit to Persia, on board of the steamboat Kursk (hence the poem’s numerous mentions of kursky, korskoye), while the covert, Razin-related level transpires as a memory of the captive Persian girl: in 1669, Razin’s fleet defeated the Persians, and took various spoils, including, as legend has it, a daughter of the commander of the Shakh’s fleet. It is this girl who is mentioned in the folk song ‘From beyond the island towards the river’s widest flow’ [‘Iz-za ostrova na strezhen’], quoted in Khlebnikov’s poem. By bringing together the poem’s two levels through a commentary about several memorable metaphors (like ‘the Zorgam gorge’, ‘the dark unruly hair’, as well as comparing Razin to a nightingale), the author reveals that the lyrical hero identifies himself with Razin, who appears as the former’s lyrical doppelganger as well as the poet’s alter ego.
On this and other worlds: voices from Amazonia, by Kristine Stenzel and Bruna Franchetto
Authors: Nevins Andrew
Published: May 2019

Review ofSTENZEL, Kristine; FRANCHETTO, Bruna. On this and other worlds: voices from Amazonia. Berlin: Language Science Press, 2017.
Studying deformation of support horizontal steel tank when performing a frequency analysis
Authors: Solodovnikov Alexander V. , Makhneva Arina N.
Published: May 2019

The article is devoted to the study of deformation of support structure of horizontal steel tank, which is located in the North of Tyumen region. This study was carried when performing frequency analysis. It is found that the hardness ring was great deformation when performing frequency analysis of support structure of horizontal steel tank. The support structure of tank has lost its balance, but retained its integrity.
Studying of changes in the interaction of well during the water injection process
Authors: Sagitov Damir K.
Published: May 2019

The study of the causes of changes in the effectiveness of the reservoir pressure maintenance system in terms of the interaction of injection and production wells is an important and insufficiently studied problem, especially in terms of the causes of the attenuation of stable connections between the interacting wells. Based on the results of the calculation of the Spearman pair correlation coefficient, the reasons for the change in the interaction of wells during the flooding process at various stages were estimated. Of particular interest are identified four characteristic interactions, which are determined by the periods of formation of the displacement front.
Daily consumption of caper fruit along with atorvastatin has synergistic effects in hyperlipidemic patients: Randomized clinical trial
Authors: Sardari Saeed , Fallahi Faramarz , Emadi Fatemeh , Davati Ali , Khavasi Narjes , Gholamifesharaki Mohammad , Esmaeili Seied Saeid
Published: May 2019

Background: Dyslipidemia leads to micro- and macro-vascular complications. Atorvastatin is the main therapeutic drug used for dyslipidemia, but it causes side effects such as new type 2 diabetes mellitus onset and elevation of liver enzymes. Herbs may be useful in reducing atorvastatin doses. Caper fruit, an herbal drug in Iranian traditional medicine, has hypolipidemic effects. Hence, the effect of atorvastatin therapy with and without daily caper fruit pickle (CFP) consumption was assessed on hyperlipidemia. Materials and Methods: In this single-blinded, randomized, controlled trial, 60 hyperlipidemic patients were allocated in two groups and treated with 10 mg atorvastatin plus 40-50 g CFP (A10+CFP) or atorvastatin alone (A10) for eight weeks. Biochemical parameters were measured at baseline, 4, and eight weeks of the intervention. One-way repeated measure ANOVA and mixed ANOVA were used to measure the effect of the two treatments and the interaction between the type of treatment and time on lipid profile. Results: Serum total cholesterol and low-density lipoprotein cholesterol (LDL-C) were significantly decreased in the A10+CFP group compared with the A10 group (P<0.001 and P<0.001, respectively) from baseline up to the week 8. At week 4, mean changes of LDL-C was significantly higher in the A10+CFP compared with the A10 (P=.01). Adjusting for the baseline variables, the mean difference of alanine aminotransferase (P<0.01) and triglyceride (P=.003) were significantly higher in the A10+CFP group at the end. Conclusion: This study reports that the intake of CFP along with atorvastatin daily may have synergistic effects which improve the lipid profile in hyperlipidemic patients. [GMJ.2019;8:e1345]
RANCANG BANGUN ALAT PEMIPIH BIJI JAGUNG OLAHAN
Authors: Kaâ€™ka Simon , Ritto Jeremiah , Hasni Hasni , Juanto Mario F.L.N , M Ghiyats Dzulkifli
Published: May 2019

Jagung merupakan salah satu hasil pertanian di indonesia yang memilikibanyak kandungan gizi. Untuk memanfaatkan jagung tersebut maka dibuatlah alatpemipih biji jagung yang dapat dimanfaatkan di kalangan masyarakat. Pembuatan alatyang sebelumnya telah dibuat dengan ketebalan + 1,0 mm.Oleh karena itu, pembuatanalat ini dilakukan untuk mengetahui bagaimana menghasilkan pemipihan jagung yangketebalannya bervariasi+ 1, + 1,5 dan + 2 mm, membuat alat pemipih jagung yangminimalis dan mudah dioperasikan serta bagaimana mengetahui biaya pembuatanalat pemipih biji jagung olahan ini. Berdasarkan hasil pengujian hasil pemipihan yangdiperoleh untuk ketebalan + 1,0 mm yang diambil dari 10 sampel pengujian yangdiambil secara acak yakni rata â€“ rata 1,01 mm, 1,08 mm, dan 1,07 mm selama 3 kalipercobaan. Sedangkan hasil pemipihan yang diperoleh untuk ketebalan + 1,5 mmyang diambil dari 10 sampel pengujian yang diambil secara acak yakni rata â€“ rata 1,52mm, 1,62 mm, dan 1,56 mm selama 3 kali percobaan. Serta hasil pemipihan yangdiperoleh untuk ketebalan + 2,0 mm yang diambil dari 10 sampel pengujian yangdiambil secara acak yakni rata â€“ rata 2,09 mm, 2,02 mm, dan 2,05 mm selama 3 kalipercobaan.Adapun hasil dari analisis, maka waktu pengeringan berpengaruh padawaktu proses pemipihan, dimana menunjukkan bahwa semakin lama di jemursemakin cepat proses pemipihan dan sedikit berpengaruh pada hasil pemipihan.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI PRODUKSI BIOGAS DARI LIMBAH TERNAK DI KEC. BAROKO KAB. ENREKANG
Authors: Tangko Jumadi , Sonong Sonong , S Muh Andi Chaerul , Salam Junaidi
Published: May 2019

Penelitian ini dilakukan yaitu untuk mengetahui/menganalisa faktor-faktorapa saja yang dapat mempengaruhi produksi biogas limbah ternak sapi didalamsebuah digester, dimana ukuran digester yang digunakan yaitu dengan diameterdigester Â± 2 m dan tinggi Â± 2 m. Penelitian ini dilakukan di Kecamatan BarokoKabupaten Enrekang, menggunakan metode eksperimental dengan perlakuanpenambahan subtrat seperti Em4 kedalam campuran kotoran sapi dengan air dandengan melakukan perbandingan 1:2 dimana kotoran sapi lebih sedikit daripada air.Dalam penelitian ini penulis menggunakan alat ukur manometer U, Ph-meter danPenelitian ini bertujuan untuk mengetahui pengaruh penambahan Em4 danperbandingan 1:2 terhadap produksi biogas di Kecamatan Baroko KabupatenEnrekang. Hasil pengujian yang dilakukan menunjukkan bahwa penambahan Em4dapat meningkatkan peroduksi biogas dimana tekanan tertinggi terjadi pada hari ke-6dengan kenaikan tekanan mencapai 31.5 cm (kenaikan presure di malam hari).Sedangkan perbandingan 1:2 hasil penelitian menunjukkan adanya penurunanproduksi biogas. Hal ini dikarenakan kurangnya sumber makanan bagi bakteri-bakteripembentuk biogas.
Extended Education – Some Considerations on a Growing Research Field
Authors: Stecher Ludwig
Published: May 2019

In most modern countries, much learning in childhood and adolescence takes place outside of regular school hours. That holds for community-based programs – like afterschool programs – as well as for private offerings – like private tutoring. In the international research literature, this field of learning opportunity is called extended education. This article attempts to define the term, extended education, and to describe in some detail the common features of extended education programs and activities, focusing among other things on questions of methods, outcomes and professionals working in this field. The article addresses additionally the question whether learning in the field of extended education decreases social inequality, or, on the contrary, widens the social gap. The most important conclusion is that many relevant questions regarding social inequality and the effectiveness of extended education are still empirically open to research.
Student achievement and educational inequality in half- and all-day schools: Evidence from Germany
Authors: Steinmann Isa , Strietholt Rolf
Published: May 2019

Several countries have expanded extended education in recent years. In Germany, the most substantial educational reform is the ongoing transformation of the traditional half-day school system into an all-day school system. Among politicians, expectations are high that all-day schools will promote student achievement and reduce social achievement inequalities. To test these assumptions, we used representative data from the National Educational Panel Study (NEPS) to estimate two-level latent growth models for achievement in grades 5, 7, and 9. The analyses revealed initial achievement differences but no differences in achievement growth or changes in inequality throughout secondary school. This suggests that selection mechanisms are at work but that half- and all-day schools are not differentially effective. We discuss these findings in light of the international debate on the quality of extended education.
SYSTEMATIZATION, IMPLEMENTATION AND ANALYZE OF OVERALL THROUGHPUT EFFECTIVENESS CALCULATION IN FINISHING PROCESS OF WEAVING INDUSTRY
Authors: YILMAZ EROĞLU Duygu
Published: May 2019

Özet

Sürekli iyileşmenin
sürdürülebilirliği için, üretim alanından mümkün olduğunca fazla veri almanın önemi
tartışılamaz. Ancak, bu verileri, yalın üretim
sisteminde anahtar performans göstergelerine dönüştürmek çok daha önemlidir.
Bu makale, gerçek üretim ortamında, dokuma
endüstrisinin finisyon sürecine odaklanmıştır. Çalışmada, öncelikle RFID ve PLC
otomasyon yapısı ile barkod bazlı izlenebilirlik sağlanmıştır. Sonraki aşamada,
her bir süreç için genel ekipman etkinliği (OEE)’nin hesaplanması sağlanmış ve özgün
bir gösterge olarak genel çıktı etkinliği (OTE)’ne dönüştürme yöntemi
önerilmiştir. Makalenin son aşamasında, genel
çıktı etkinliği değerinin otomatik olarak alınmasından sonra, üretim ortamı
parametreleri ile gösterge (OTE) arasındaki ilişkinin ortaya çıkarılması
hedeflenmiştir. OTE sonuçlarını etkileyen en
önemli üretim ortamı parametrelerini bulmak için, Revize Melez Genetik
Algoritma önerilmiştir. Geliştirilen algoritmanın sonucunu doğrulamak için ise
Çoklu Doğrusal Regresyon kullanılmıştır. (Bu
çalışma, Güncel Yazılım Ar-Ge Merkezi ve Türkiye Bilimsel ve Teknik Araştırma
Kurumu (TÜBİTAK-TEYDEB- 7151608) tarafından desteklenmiştir.)

Anahtar
Kelimeler: Genel Çıktı Etkinliği, Genel Ekipman Etkinliği, Finisyon Süreci, Dokuma
Endüstrisi

Abstract

For the sustainability
of continuous improvement, the importance of getting as much data as possible
from production field is indisputable. But, converting these data to key
performance indicators in lean production system is much more important. This paper
focused on finishing process of weaving industry, in real production plant. In
the study, firstly, barcode based traceability was provided by RFID and PLC
automation structure. In the next step, the calculation of the general
equipment efficiency (OEE) for each process was provided and then a method of
converting these OEE values to the unique indicator as general output efficiency
(OTE) was proposed. In the last phase of the paper, after getting OTE value
automatically, it was aimed to reveal the relationship between production
environment parameters and indicator of OTE. Revised Hybrid Genetic Algorithm was
proposed to find the most important production environment parameters that affect
OTE results. Multiple Linear Regression was utilized to verify the result of developed
algorithm. (This work supported by Güncel Yazılım R&D Center and The
Scientific and Technical Research Council of Turkey (TUBİTAK-TEYDEB- 7151608.))

Keywords: Overall
Throughput Effectiveness, Overall Equipment Effectiveness, Finishing Process, Weaving
Industry
PROPERTIES OF WASTE FIBER/POLYURETHANE FLAME RETARDANT INSULATION BOARD
Authors: LIHUA Lv , LIU Yingjie , LI Congtan , GUO Jing , YE Fang
Published: May 2019

In order to solve the recycling problem of waste
fibers, waste fiber/polyurethane flame retardant insulation board was prepared
by blending- hot pressing method with waste cotton fiber, discarded
polyurethane, AC (azodimethylamide) foaming agent and APP (ammonium
polyphosphate) flame retardant as raw materials. The necessary conditions to
the optimized technology was mass fraction of waste fibers 10%, mass fraction
of AC foaming agent 3%, mass fraction of APP flame retardant 15%, hot pressing
pressure 7MPa, hot pressing temperature 180℃, length of waste fibers 20mm,
mixing temperature 175-180℃, hot pressing time 8min, cool-down time 2h, which
were optimized by thermal conductivity coefficient, limit oxygen index and
mechanical properties.The flame retardant mechanism and effect of the waste
fiber/polyurethane flame retardant insulation board was analyzed by TGA
(Thermogravimetric Analysis) and residual carbon ratio. Finally, the abaqus finite
element simulation software was used to simulate the thermal conduction process
and verify the correctness of model.
Panta Rhei
Authors: Kaufmann Viktor , Sulzer Wolfgang , Seier Gernot , Wecht Matthias
Published: May 2019

In this paper we present a reconstruction of the kinematics of the Tschadinhorn rock glacier using multi-temporal conventional (metric) aerial photographs (1954–2015) and additional non-metric aerial photographs (2016, 2017) taken with in-house unmanned aerial vehicles (UAVs). A rotary-wing aircraft (hexacopter twinHEX v.3.0) was used in 2016 and a fixed-wing aircraft (QuestUAV) in 2017. The historical image data was acquired from the Austrian Federal Office of Metrology and Surveying (BEV). Both a digital orthophoto (DOP) and a digital terrain model (DTM) were computed for each given epoch. Precise georeferencing of the image data was carried out in the Austrian Gauss-Krüger M31 coordinate system using available aerotriangulations (ATs) of BEV and additional ground control points (GCPs) measured geodetically during both UAV campaigns. Change detection analysis provided multi-temporal 2D flow velocity fields. Subsequently, these data were collated to produce a simpler velocity graph showing clearly the temporal evolution of the flow velocity of Tschadinhorn rock glacier: A maximum mean annual flow velocity of 3.28 m/year was obtained for 2014–2015, while the lowest annual flow velocity of 0.16 m/year was observed for 1969–1974. The velocity graph also revealed that 1954–2009 was characterized by generally moderate activity (0.16 – 0.79 m/year) and that much higher flow velocities have prevailed since 2009. The present value for 2016–2017 is 1.92 m/year.
Penerapan Sistem Pengendalian Internal pada PD Citra Kartini Bandar Lampung
Authors: Agustina Fitri
Published: May 2019

Penelitian  ini merupakan penelitian deskriptif dengan studi kasus yang dilakukan pada Perusahaan Dagang (PD) Citra Kartini Lampung. Adapun tujuan dari penelitian ini adalah untuk melakukan perbaikan  sejauh mana penerapan  sistem pengendalian  internal yang baik sesuai   dengan   karakteristik   serta   kompleksitas   perusahaan  dagang yang mengacu pada standar  Committee of Sponsoring Organizations of The Treadway Commission (COSO) yang diterapkan pada Perusahaan Dagang (PD) Citra Kartini Lampung. Penelitian ini menggunakan metode wawancara dan koesioner kepada pimpinan selaku dewan pengawas dan manajer operasional selaku kepala divisi dan staf.  Dari hasil analisis dapat disimpulkan bahwa  PD  Citra kartini belum menerapkan sistem pengendalian internal. Hal tersebut tercermin dari belum adanya prosedur dan sistem yang baik.
Factors that Influence Fraudulent Financial Statements in Retail Companies - Indonesia
Authors: Ferdinand Rian , Santosa Setyarini
Published: May 2019

Fraudulent financial statements is an intentionally misstatement of the financial statements. There are several factors affected the evidence of fraudulent financial statements report. The objective of this research is to investigate the influence of audit committee characteristics, managerial ownership, leverage, and liquidity toward the fraudulent financial statements report in retail companies listed on the Indonesia Stock Exchange in the period of 2012-2016. Using regression, the result shows that audit committee characteristic and leverage do not have significant effect on the fraudulent financial statements report, while managerial ownership and liquidity have. Simultaneously, audit committee characteristics, managerial ownership, leverage and liquidity have significant influence to the fraudulent financial statement report.
Effects of Thermochemical Surface Treatments on the Industrially Important Properties of X2CrNiMo 17-12-2 Austenitic Stainless Steel
Authors: Kovács Dorina , Dobránszky János
Published: May 2019

Austenitic stainless steels have low corrosion resistance in applications where strong acids and vapors attack the surface, typically in food and chemical industries. This drawback can be improved by surface treatments. Salt bath, gaseous or plasma-based surface treatments are a diffusion process for improving the hardness of the surface layer of stainless steels without significantly affecting their corrosion resistance. Low temperature nitriding and carburizing process can form a diffusion zone or/and compound phase. The corrosion-wear resistance of austenitic stainless steels can also improve with low temperature plasma nitriding and carburizing. The effect of these treatments on hardness and corrosion resistance was investigated in this research. Optical microscopy and Vickers hardness test were used for the characterization of the surface and potentiodynamic tests were performed to determine the corrosion rate. The results show that the hardness of the kolsterised sample is higher compared to the plasma nitride one. Beside this property, the corrosion rate is similar, but pitting corrosion was observed on the surface, due to the Cr2N formation.
Enhancement of Tourism Promotion Efforts in DKI Jakarta
Authors: Rachman Taufiq
Published: May 2019

This study discusses about enhancement of tourism promotion efforts in DKI Jakarta. Variables in the study consists of security stability variables and macroeconomic policies, tourism policies and budgets, tourism development strategies, strategies for supporting facilities and infrastructure development, length of stay improvement programs for foreign tourist visits, increased tourist visits to the archipelago, tourism sector MSMEs development, creation Tourism Employment, and Regional Revenue Increase from the Tourism Sector. The object of research is tourism businesses and MSMEs that carry out tourism sector activities in DKI Jakarta. Whereas the subjects in this study were leaders / managers, and MSMEs entrepreneurs, as well as other related parties. The result shows that there is a meaningful relationship between the variables of Security Stability and Macroeconomic Policy, Tourism Policy and Budget, Tourism Object Development Strategy, Tourism Support Facilities and Infrastructure Development Strategy, Length of Stay Program. The lowest closeness of the relationship is the Security Stability and Macroeconomic Policy variables with the Tourism Object Development Strategy variable, while the highest relationship closeness is the Security and Macroeconomic Policy variables, the Policy with the Length of Stay Program Improvement variable.
Nisab Calculation of Paddy Zakat in Kuta Malaka Sub-District, Aceh Besar District (Viewed According to the Mazhab Shafi'i)
Authors: Sandra Aria , Yasir Muhammad , Amin Maimun Abdurrahman , Husni Husni
Published: May 2019

Zakat is one of the pillars of Islam. Every person who has assets when he reaches the threshold of Nisab is obliged to issue zakat. Among the assets that are obligatory for zakat to be issued are agricultural products, in this case paddy. Provisions of paddy zakat in the Shafi'i school, zakat must be issued after the paddy is harvested and calculates the Nisab before cutting all costs that have been used. Whereas the practice carried out by the community is the cost cutting that has been used during the process of planting paddy before the yield of the zakat is issued. Zakat is paid for from the rest of the penen and after it is combined with the results of other fields. This study aims to find out how the community practices of Kuta Malaka Subdistrict, Aceh Besar District, about the calculation of paddy zakat syrup and what they are guiding in carrying out the process of calculating zakat alms.The results showed that the community practices of Kuta Malaka Subdistrict in Aceh Besar District, namely cutting costs that had been used during the process of planting paddy before issuing zakat first, contradicted the provisions of zakat (paddy) in the Shafi'i school.
No observed effect of a student-led mock objective structured clinical examination on subsequent performance scores in medical students in Canada
Authors: Madrazo Lorenzo , Lee Claire Bo , McConnell Meghan , Khamisa Karima , Pugh Debra
Published: May 2019

Student-led peer-assisted mock objective structured clinical examinations (MOSCEs) have been used in various settings to help students prepare for subsequent higher-stakes, faculty-run OSCEs. MOSCE participants generally valued feedback from peers and reported benefits to learning. Our study investigated whether participation in a peer-assisted MOSCE affected subsequent OSCE performance. To determine whether mean OSCE scores differed depending on whether medical students participated in the MOSCE, we conducted a between-subjects analysis of variance, with cohort (2016 vs. 2017) and MOSCE participation (MOSCE vs. no MOSCE) as independent variables and the mean OSCE score as the dependent variable. Participation in the MOSCE had no influence on mean OSCE scores (P=0.19). There was a significant correlation between mean MOSCE scores and mean OSCE scores (Pearson r=0.52, P<0.001). Although previous studies described self-reported benefits from participation in student-led MOSCEs, it was not associated with objective benefits in this study.
Implementasi Algoritma Kriptografi Rivest Shamir Adleman (RSA) pada Tanda Tangan Digital
Authors: Anshori Yusuf , Erwin Dodu A. Y. , Wedananta Dewa Made P.
Published: May 2019

Tanda tangan digital merupakan mekanisme otentikasi yang memungkinkan pembuat pesan menambahkan sebuah kode yang bertindak sebagai tanda tangannya. Tanda tangan digital dapat digunakan untuk melakukan pembuktian secara matematis bahwa data tidak mengalamai modifikasi secara illegal, sehingga bisa digunakan sebagai salah satu solusi untuk melakukan verifikasi data. Penelitian ini bertujuan untuk menerapkan algoritma kriptografi Rivest Shamir Adleman (RSA) pada tanda tangan digital. Proses pembuatan tanda tangan digital diawali dengan pembuatan message digest dari sebuah dokumen kemudian proses pembangkitan kunci publik dan kunci privat untuk mengamankan data dan untuk membuat tanda tangan digital. Kunci privat akan dikirimkan kepada penerima pesan untuk memverifikasi tanda tangan digital. Tanda tangan digital dan dokumen dikirmkan kepada penerima. Selanjutnya, pada proses verifikasi, penerima akan mengecek apakah tanda tangan tersebut cocok atau tidak dengan menggunakan kunci privat dan menghitung nilai hash (message digest) dari dokumen yang diterima.
Analisis Evaluasi E-learning Menggunakan Integrasi Model D&M dan UTAUT
Authors: Novianti Kadek Dwi Pradnyani
Published: May 2019

E-learning merupakan media dalam proses pembelajaran yang memanfaatkan teknologi untuk pendidik dan peserta didik sehingga memudahkan proses pembelajaran. Sebagai sebuah sistem informasi yang sering digunakan oleh peserta didik, e-learning harus memiliki standar tertentu. Penelitian ini bertujuan untuk mengetahui hasil evaluasi kesuksesan e-learning dan penerimaannya di kalangan peserta didik pada STIKOM Bali. Penelitian ini menggunakan model DeLone &McLean (D&M) untuk mengukur tingkat kesuksesan sistem informasi dan model Unified Theory of Acceptance and Use of Technology (UTAUT) untuk mengukur tingkat penerimaan teknologi. Agar dapat mengetahui hasil evaluasi antara kesuksesan sistem informasi dan penerimaan teknologi untuk maka kedua model ini kemudian diintegrasikan untuk mencapai tujuan penelitian. Kedua model ini dapat menggambarkan bagaimana masing-masing variabel pengukuran saling mempengaruhi satu sama lain, sehingga keterkaitan antar variabelnya dapat diketahui. Selain itu kedua model ini mempertimbangkan bagaimana perilaku pengguna ketika menggunakan sebuah sistem informasi. Hasil menunjukan bahwa penerimaan pengguna terhadap penerapan e-learning menyebabkan sebuah informasi sukses diterapkan dalam lingkungannya. Hal ini dapat dilihat dari model penelitian yang diajukan menunjukan sebagian besar variabelnya mempengaruhi kesuksesan penerapan e-learning baik secara langsung maupun tidak langsung. Variabel-variabel tersebut adalah performance quality, effort expectancy, system quality, behavioral intention, dan user satisfaction.
Perancangan Robot Penelusur Menggunakan Algoritma Dijkstra dan Metode Maze Solver
Authors: Anshori Yusuf , Dodu A. Y. Erwin , Kurniawan Fadli
Published: May 2019

Dalam sebuah eksplorasi terdapat berbagai macam hal yang ingin di telusuri, baik dalam area terbuka maupun sebuah area tertutup. Pada area tertutup seperti reruntuhan, banyak hal yang bisa terjadi dan dapat membingungkan serta membahayakan nyawa manusia. Berdasarkan studi literatur yang dilakukan didapatkan bahwa dengan menggunakan robot yang diimplementasikan algoritma dijkstra dan metode maze solver dapat mengurangi biaya eksplorasi serta menghindari hal-hal yang dapat membahayakan nyawa manusia. Maka untuk algoritma dijkstra dan metode maze solver diambil dikarenakan algoritma dijkstra dapat menelusuri jalur terpendek dari titik manapun dan metode maze solver dapat menelusuri labirin yang tidak diketahui peta labirinnya sehingga dapat melakukan penelesuran labirin yang memiliki peta yang diketahui jalurnya dan peta yang tidak diketahui jalurnya. Capaian dari hasil penelitian ini adalah, mengimplementasikan algoritma dijkstra dan metode maze solver pada robot penelusur labirin. Ilmu penelitian ini dapat menjadi referensi dari studi pembelajaran dan pembuatan produk teknologi yang berguna bagi perusahaan maupun masyarakat.
Sistem Pendukung Keputusan Pemberian Pembiayaan Murahabah dengan Fuzzy Analytic Hierarchy Process
Authors: Monalisa Siti , Setiawan Raynaldi
Published: May 2019

BMT Al-ittihad terdapat bermacam-macam pembiayaan  salah satunya Murabahah yang berarti akad jual beli barang dengan menyatakan harga perolehan dan keuntungan (margin) yang disepakati oleh penjual dan pembeli. BMT Al-itthad dalam proses melaksanakan akad Murabahah dilakukan dengan menganalisa kelayakan pemberian pembiayaan kepada anggota dengan cara melengkapi persyaratan umum dan menggunakan bahasa yang subjektif terhadap penilaian kriteria karakter berdasarkan rekomendasi anggota lain,wawancara dan cara berkomunikasi, Penilaian karakter merupakan penilaian yang paling penting berdasarkan hasil wawancara dengan kepala pembiayaan karena penilaian karakter merupakan penilaian untuk melihat apakah anggota sanggup dan amanah membayar hutang. Untuk mengatasi penilaian yang bersifat subjektif maka dirancang sebuah sistem pendukung keputusan pemberian pembiayaan dengan menggunakan metode fuzzy analytic hierarchy process. Metode fuzzy AHP merupakan penggabungan dari metode fuzzy dan AHP. Metode fuzzy AHP dapat menutupi kelemahan yang terdapat pada AHP yaitu menangani penilaian yang bersifat subjektif . Sistem ini dirancang menggunakan bahasa pemrograman PHP, MySQL , sedangkan metode pengembangan sistem menggunakan V-model dan UML sebagai standar pemodelannya. Sistem pendukung keputusan  ini dapat memudahkan serta mempercepat proses penentuan pemberian pembiayaan Murabahah kepada anggota.
Correction: Responses of Canopy Growth and Yield of Potato Cultivars to Weather Dynamics in a Complex Topography: Belg Farming Seasons in the Gamo Highlands, Ethiopia: Agronomy 2019, 9, 163
Authors: Minda Thomas T. , van der Molen Michiel K. , Vilà-Guerau de Arellano Jordi , Chulda Kanko C. , Struik Paul C.
Published: May 2019

In Minda et al. [1], an error was introduced. We propose the following amendment: Figure 9, inSection 3.2.4 (Days to Maturity and Yield), should be replaced by the following updated figure [...]
Statin Use and the Point Prevalence of Antibiotics in Ambulatory Patients with Diabetes in the National Health and Nutrition Examination Survey (NHANES) 2003–2012
Authors: Alarfaj Sumaiah J. , Perez Alexandra , Unger Nathan R.
Published: May 2019

In patients with diabetes, the risk of infections is increased, hypothesized to be due to alterations in the immune system, among other changes. The pleotropic effects of statins have been investigated to assess their role in reducing the risk of infection and infection-related outcomes with varying results. The aim of this study is to determine if the use of statins is associated with a decrease in the point prevalence of oral antibiotic use in ambulatory patients with diabetes. Using data from the National Health and Nutrition Examination Survey (NHANES) from 2003 to 2012, all adult patients diagnosed with diabetes were analyzed. Patients were grouped into those who were prescribed statins and those who were not. Oral antibiotic use between the two groups was compared. Data were standardized to national estimates. A total of 3240 patients with diabetes were identified, with 1575 statin users and 1665 non-statin users. After controlling for baseline socio-demographic and clinical variables, the overall point prevalence of oral antibiotic use in diabetes population was 3.5% with no difference between statin users and non-statin users (2.9% vs. 4%, p = 0.116). Based on the results of this study, the use of statins in patients with diabetes was not associated with a reduction in the point prevalence of antibiotic use.
Effect of Sechium edule var. nigrum spinosum (Chayote) on Oxidative Stress and Pro-Inflammatory Markers in Older Adults with Metabolic Syndrome: An Exploratory Study
Authors: Rosado-Pérez Juana , Aguiñiga-Sánchez Itzen , Santiago-Osorio Edelmiro , Mendoza-Núñez Víctor Manuel
Published: May 2019

Metabolic syndrome (MetS) is a risk factor for cognitive deterioration and frailty in older adults. In this regard it has been shown that oxidative stress (OxS) and chronic inflammation are involved in the pathophysiology of these alterations. Harmless antioxidant and anti-inflammatory therapeutic alternatives have been proposed, such as the consumption of Sechium edule (chayote), but the evidence is inconclusive. For this reason, an exploratory study of a single group chosen by convenience sampling, including 12 older adults, with an average age of 71 ± 6 years (10 women and 2 men) with a diagnosis of MetS according to the National Cholesterol Education Program Adult Treatment Panel III (NCEP/ATP III) criteria. This exploratory study aimed to determine the effect of the consumption of the dried fruit powder supplement of Sechium edule var. nigrum spinosum (500 mg, 3 times per day) for six weeks on the markers of OxS in elderly adults with MetS. All participants’ OxS markers were measured before and after treatment. There was a statistically significant decrease in the concentration of lipoperoxides (baseline, 0.289 ± 0.04 vs. post-treatment, 0.234 ± 0.06 μmol/L, p < 0.05), together with a significant increase in total antioxidant status (baseline, 0.97 ± 0.18 vs. post-treatment, 1.2 ± 0.12 mmol/L, p < 0.05). In this sense, the oxidative stress index showed a statistically significant decrease (baseline, 1.7 ± 0.78 vs. post-treatment, 0.75 ± 0.87, p < 0.05). A statistically significant decrease in the concentration of TNF-α after treatment was also found (baseline, 5.3 ± 1.4 vs. post-treatment, 3.5 ± 1.3, p < 0.05).Our findings suggest that the consumption of the dry fruit of Sechium edule has an antioxidant and anti-inflammatory effect in older adults with metabolic syndrome.
Red Light Control of β-Carotene Isomerisation to 9-cis β-Carotene and Carotenoid Accumulation in Dunaliella salina
Authors: Xu Yanan , Harvey Patricia J.
Published: May 2019

Dunaliella salina is a rich source of 9-cis β-carotene, which has been identified as an important biomolecule in the treatment of retinal dystrophies and other diseases. We previously showed that chlorophyll absorption of red light photons in D. salina is coupled with oxygen reduction and phytoene desaturation, and that it increases the pool size of β-carotene. Here, we show for the first time that growth under red light also controls the conversion of extant all-trans β-carotene to 9-cis β-carotene by β-carotene isomerases. Cells illuminated with red light from a light emitting diode (LED) during cultivation contained a higher 9-cis β-carotene content compared to cells illuminated with white or blue LED light. The 9-cis/all-trans β-carotene ratio in red light treated cultures reached >2.5 within 48 h, and was independent of light intensity. Illumination using red light filters that eliminated blue wavelength light also increased the 9-cis/all-trans β-carotene ratio. With norflurazon, a phytoene desaturase inhibitor which blocked downstream biosynthesis of β-carotene, extant all-trans β-carotene was converted to 9-cis β-carotene during growth with red light and the 9-cis/all-trans β-carotene ratio was ~2. With blue light under the same conditions, 9-cis β-carotene was likely destroyed at a greater rate than all-trans β-carotene (9-cis/all-trans ratio 0.5). Red light perception by the red light photoreceptor, phytochrome, may increase the pool size of anti-oxidant, specifically 9-cis β-carotene, both by upregulating phytoene synthase to increase the rate of biosynthesis of β-carotene and to reduce the rate of formation of reactive oxygen species (ROS), and by upregulating β-carotene isomerases to convert extant all-trans β-carotene to 9-cis β-carotene.
A Novel Method Based on Neural Networks for Designing Internal Coverings in Buildings: Energy Saving and Thermal Comfort
Authors: Orosa José A. , Vergara Diego , Costa Ángel M. , Bouzón Rebeca
Published: May 2019

Although several papers define energy saving and thermal comfort optimization with internal coverings materials, none of them deal with predictive models to improve design in building constructions. Thus, artificial intelligence (AI) procedures were applied in this paper. In particular, neural networks (NNs) were designed for indoor ambiences with internal covering materials in different buildings, were trained and employed to predict indoor ambiences (indoor temperature and relative humidity as a function of weather conditions), and, based on these procedures, local thermal comfort conditions and energy consumption, due to the type of internal covering permeability level, were calculated. Results from this original methodology showed a better acceptability of indoor ambiences when permeable coating materials were used, in agreement with previous research works. At the same time, with permeable coverings, a lower energy consumption of 20% in the heating, ventilation, and air conditioning (HVAC) systems was needed to reach more comfortable conditions during the summer season in the first hours of occupation. Finally, all these results suggest an original methodology to optimize indoor ambiences based on the design of internal coverings by NN.
Increased Anti-Inflammatory Effects on LPS-Induced Microglia Cells by Spirulina maxima Extract from Ultrasonic Process
Authors: Choi Woon Yong , Sim Jae-Hun , Lee Jung-Youl , Kang Do Hyung , Lee Hyeon Yong
Published: May 2019

The Spirulina maxima exact from a non-thermal ultrasonic process (UE) contains 17.5 mg/g of total chlorophyll, compared to 6.24 mg/g of chlorophyll derived from the conventional 70% ethanol extraction at 80 °C for 12 h (EE). The UE also showed relatively low cytotoxicity against murine microglial cells (BV-2) and inhibited the production of the inflammatory mediators, NO and PGE2. The UE also effectively suppresses both mRNA expression and the production of pro-inflammatory cytokines, such as TNF-α, IL-6 and IL-1β, in a concentration-dependent manner. Notably, TNF-α gene and protein production were most strongly down-regulated, while IL-6 was the least affected by all ranges of treatment concentrations. This work first demonstrated a quantitative correlation between mRNA expression and the production of cytokines, showing that suppression of TNF-α gene expression was most significantly correlated with its secretion. These results clearly proved that the anti-inflammatory effects of Spirulina extract from a nonthermal ultrasonic process, which yielded high concentrations of intact forms of chlorophylls, were increased two-fold compared to those of conventional extracts processed at high temperature.
High Spatial Resolution Three-Dimensional Imaging Static Unitary Detector-Based Laser Detection and Ranging Sensor
Authors: Kim Hyeon-June , Lee Eun-Gyu , Choi Han-Woong , Kim Choul-Young
Published: May 2019

This paper presents a static unitary detector (STUD)-based laser detection and ranging (LADAR) sensor with a 16-to-1 transimpedance-combining amplifier for high spatial resolution three-dimensional (3-D) applications. In order to readout the large size of a photodetector for better results of 3-D information without any reduction of the bandwidth, the partitioning photosensitive cell method is embedded in a 16-to-1 transimpedance-combining amplifier. The effective number of partitioning photosensitive cells and signal-combining stages are selected based on the analysis of the partitioning photosensitive cell method for the optimum performance of a transimpedance-combining amplifier. A prototype chip is fabricated in a 0.18-μm CMOS technology. The input referred noise is 41.9 pA/√Hz with a bandwidth of 230 MHz and a transimpedance gain of 70.4 dB·Ω. The total power consumption of the prototype chip is approximately 86 mW from a 1.8-V supply, and the TICA consumes approximately 15.4 mW of it.
Assessing the Benefits of Battery Energy Storage Systems for Frequency Regulation, Based on Electricity Market Price Forecasting
Authors: Lee Eunjung , Kim Jinho
Published: May 2019

In electricity markets, energy storage systems (ESSs) have been widely used to regulate frequency in power system operations. Frequency regulation (F/R) relates to the short-term reserve power used to balance the real-time mismatch of supply and demand. Every alternating current power system has its own unique standard frequency level, and frequency variation occurs whenever there is a mismatch of supply and demand. To cope with frequency variation, generating units—particularly base-loader generators—reduce their power outputs to a certain level, and the reduced generation outputs are used as a generation reserve whenever frequency variation occurs in the power systems. ESSs have recently been implemented as an innovative means of providing the F/R reserve previously provided by base-loader generators, because they are much faster in responding to frequency variation than conventional generators. We assess the economic benefits of ESSs for F/R, based on a new forecast of long-term electricity market price and real power system operation characteristics. For this purpose, we present case studies with respect to the South Korean electricity market as well as simulation results featuring key variables, along with their implications vis-à-vis electricity market operations.