bluuebunny/crossref_metadata_2025 huggingface dataset:
Confrontation with a live subretinal parasite
Authors: Khadka Simanta , Byanju Raghu Nandan , Pradhan Sangita
Published: February 2020

Background: Parasitic infestation of the eyes are a major cause of ocular diseases across the globe. Filarial and filarial-like nematodes top the list of the nematodes that affect the eye.

Case: A rare case of live sub retinal worm is reported in a 25 years old apparently healthy young male. The case presented with unilateral loss of vision and floaters in the affected eye. Upon examination a live subfoveal worm was identified with continuous wriggling movements and diffuse retinal edema. The worm was removed surgically and sent for parasitological examination.

Observation: The worm was identified microscopically as Loa Loa. However detailed histopathological examination could not be incorporated. The patient’s vision improved to 6/12 (0.30 Log MAR) from the initial presentation of 3/60 (1.30 Log MAR) after three months follow-up.

Conclusion: The rare sub retinal live worm presents a challenge in management. The management depends upon the location and viability of the parasite. Surgical management is aimed at worm removal and vision preservation.
MASALAH SOSIAL DAN KONFLIK MASYARAKAT ADAT PAPUA DENGAN PT FREEPORT INDONESIA
Authors: Safitri Nita
Published: February 2020

Prolonged conflict between the indigenous people of Papua and PT. Freeport Indonesia should receive serious attention from the government. Not only casualties property but also be a “thorn in the flesh” in the way of national and state, because this conflict into the international spotlight and influence overseas investor for security reason that are not guaranteed. The conflict has taken approximately 40 years old, there must be something wrong in the stage of completion. Settlement with guns and violence is not the right solution even sharpen the conflict even during the year 2009 has been approximately 50 times the clash of indigenous Papuans with PT. Freeport Indonesia and the government until 2010 even clashes are still on going. Need cultural wisdom in seeing social problems and attention to policy and development culture that framed the conflict can be ended.
Persepsi Masyarakat Tentang Persahabatan dalam Film 5 cm (Studi Deskriptif Pada Siswa SMK Negeri 1 Barumun Padang Lawas)
Authors: Dalimunthe Sri Rizki Kurnia , Hendra Yan , Matondang Armansyah
Published: February 2020

This study takes the theme of a film titled Public Perceptions of Friendship in the film 5 Cm. This study aims to look at the values that exist in the film 5 cm and to know the perception of friendship in the film 5 cm which includes the values of loyalty, struggle, sincerity, solidarity, mutual help, sacrifice and hard work. The method used in this research is descriptive method. The object of research is the public perception of the film 5 Cm with perception theory approach. To determine the number of respondents of this study using the sample population. The population in this study were students of SMK Negeri 1 Barumun Padang Lawas, amountingÂ  toÂ  360Â  peopleÂ  throughoutÂ  theÂ  classÂ  X,Â  XI,Â  XIIÂ  DepartmentÂ  ofÂ  Computer Engineering and Networks (TKJ) of SMK Negeri 1 Barumun. And sampling techniques used in this research is purposive sampling by taking a sample of 40 people or 10% of the total population. Data collection techniques used is to spread out the questionnaire, literature study and documentation. Data analysis techniques in the study of data analysis techniques using descriptive method by describing and explaining the data obtained during the study. These results indicate that the film 5 Cm is a film that provides benefits to the community. The majority of students have a perception that tend to be positive about the values of friendship that exist in the film 5 Cm.
Menguji Taji Implementasi Kebijakan Pemberian Bantuan Hibah kepada Kelompok Masyarakat di Kabupaten Badungentasi Kebijakan Publik
Authors: Sukmawati Ni Luh Putu Rita , Budiana I Nyoman
Published: February 2020

This article aims to review, describe and analyze the implementation of the grant aid policy, find out what factors influence the policy of providing grant assistance and find out the effects of providing grant assistance to community groups in Badung Regency. To achieve this goal several methods and techniques are used. The method used is descriptive qualitative research type. Data collection techniques using observation, interviews and documentation. The informant determination technique used was purposive sampling with the number of informants determined. This study concludes that the provision of grant assistance to community groups in Badung Regency has been implemented very well in accordance with the principles of justice, the principle of propriety, the principle of rationality, the principle of transparency, the principle of accountability and the principle of benefits for the community. There are several factors that influence the policy of granting aid to community groups, namely communication, resources, disposition and bureaucratic structure. The policy of providing grant assistance to community groups in Badung Regency has two impacts namely positive and negative impacts. Both impacts depend on how the Badung Regency community groups react to it.
A Comparison of Gwet’s AC1 and Kappa When Calculating Inter-Rater Reliability Coefficients in a Teacher Evaluation Context
Authors: Jimenez Albert M. , Zepeda Sally J.
Published: February 2020

With increased emphasis on teacher quality in the Race to the Top federal grants program, rater agreement is an important topic in teacher evaluation. Variations of kappa have often been used to assess inter-rater reliability (IRR). Research has shown that kappa suffers from a paradox where high exact agreement can produce low kappa values. Two chance-corrected methods of IRR were examined to determine if Gwet’s AC1 statistic is a more stable estimate than kappa. Findings suggest that Gwet’s AC1 statistic outperforms kappa as a chance-corrected measure of IRR when compared to exact agreement. Findings suggest Gwet’s AC1 statistic shows promise for future IRR studies in a teacher evaluation context.
On These Bones: The Queer Regenerations of the Toronto Gay Village Serial Killings
Authors: Haritaworn Jin
Published: February 2020

The story of Bruce McArthur, the white gay man convicted of killing eight men, most of whom were South and West Asian, repeats the well-worn trope of the rotten apple. But unlike with other serial killers, whose pathological qualities often become a media focus, it is Bruce McArthur’s uncanny normalcy—his everyman qualities, his fun disposition, his regular status as a well-known and well-liked patron and entrepreneur in the gay village on Church Street—that came to dominate the local and national mediascape. This innocent view of the gay village and its wider surrounding entities—city, nation, West—is put into question by the subjugated archives of the queer and trans Black and Indigenous people and people of colour (QTBIPOC) who contributed to the collaboratively curated collection that this article is born from (Choi 2018; Haritaworn, Moussa and Ware 2018 ; Haritaworn, Moussa and Ware with Rodriguez 2018 ; Moussa 2019 ; Rodriguez and Panag 2016; Ware 2017 ). In this archive, the successful territorialization of the village becomes apparent as an effect of a carceral city that is not only neoliberal, but also racial and colonial, and that treats low-income trans women of colour in particular as excessive. Using media ethnography conducted in 2017 and 2018 (before McArthur went to trial) as well as writings by and interviews with QTBIPOC in Toronto conducted between 2014 and 2018, the article provides a snapshot of the saga, which at the time of publication is ongoing, and which occurs at the particular historic conjuncture of a waning diversity regime that identifies respectable LGBT subjects as its transitional objects, of the global rebirth of an unfettered racism that is revealing itself behind its neoliberal multicultural camouflage, and of a finance-capitalist condominium boom that is fast erasing the traces of QTBIPOC loving and living. To queer urban justice in this lethal environment, and to prefigure futures that go beyond murderous inclusions, means to remember differently and to step into the unfinished legacies of geographic and historical subjects who are rarely missed and whose removal has been constitutive of urban and academic spaces designated progressive.
STRATEGIC DIRECTIONS AND MEASURES FOR REFORMING UKRAINE'S ECONOMIC POLICY
Authors: KUZHEL O.V.
Published: February 2020

Topicality. The task of growth of the gross domestic product of the state necessitates the implementation of processes of demonopolization and deregulation of the economy, creation of conditions for free fair competition, effective functioning of strategic commodity markets, expanded reproduction of the labor potential of the country. Nowadays, the issue of development and implementation of the new economic policy of Ukraine taking into account specific factors of influence on the national economic system in the context of its stable reproduction development is of particular relevance and importance.
Aim and tasks. The purpose of the article is to substantiate the strategic directions, measures and instruments of reforming the economic policy of Ukraine, as the basis of the national platform of the new economic course of the state. During the research the following methods were used: dialectical, theoretical generalization and comparison, graphical, structural-logical method.
Research results. In the article the author substantiates the expediency of creation of multidisciplinary All-Ukrainian associations and their main tasks. Proposals for systematic reformation of the most important taxes have been worked out: personal income tax, single social contribution, value added tax and income tax. Attention is drawn to the need to achieve a rational level of aggregate tax burden in Ukraine. The expediency of risk insurance in business lending, the use of international principles and practices in the formulation of antitrust and monetary policy in Ukraine is substantiated. Based on the analysis of the commodity structure of domestic exports, the necessity to support the production and export of high value-added processing products has been proved. The need for educational reform, changing the paradigm of cheap labor, conducting a high-quality multidimensional analysis of the labor market and adopting an updated labor code were emphasized.
Conclusion. The proposals developed in the article form the conceptual basis of the national platform of Ukraine's new economic course. The development of a step-by-step plan of action, changes to legislation and the legal framework, a system of mechanisms and measures for their practical implementation determine the prospects for further research in this area.
ARCHITECTURAL AND URBAN PLANNING OF RESIDENTIAL SETTLEMENT OF COOPERATIVE SOCIETY “TRAMVAYSHCHIK” IN ROSTOV-ON-DON
Authors: Tokarev A. G.
Published: February 2020

The article describes the planning structure and architecture of one of the first residential settlements built after the Civil War in Rostov-on-Don, the cooperative society “Tramvayshchik”. Step-by-step changes in Rostov occurred in the 1920s. Almost each architectural project of the mid-1920s is characterized by the traditional dependence on spatial planning, a regular development of residential settlements with buildings around the perimeter, with conventional differentiation of urban spaces into utilitarian and festive. It is demonstrated that planning solutions of the residential settlements are a combination of both traditional and popular principles of ribbon development with drastic urban decompaction and site landscaping. Planning of residential buildings is strongly influenced by Art Nouveau and Neo-classical architecture. It is concluded that the construction site and the existing patterns of spatial and visual thinking are a sort of significant formative factors here; the residential settlements are a synthesis of the old and new traditions in architectural and urban development during the transition period of the mid-1920s.
Konventionen, epistemische Werte und Kritik
Authors: Diaz-Bone Rainer , Horvath Kenneth
Published: February 2020

Diskussionen um die Normativität von Sozialforschung gehen häufig von der Vorannahme aus, dass Werte und Fakten einander äußerlich sind. Auf Basis (neo-)pragmatischer Überlegungen schlägt dieser Beitrag demgegenüber die Unhintergehbarkeit von Werten in der sozialwissenschaftlichen Wissensproduktion als möglichen Ausgangspunkt einer Soziologie der Sozialforschung vor. Epistemische Werte erlauben Koordination und Bewertung im Forschungsprozess. Diese Werte sind keine Frage subjektiver Vorlieben, sondern „objektiv“. Sie müssen sich im sozialen Vollzug der Forschung zur Bewältigung ungewisser Situationen bewähren und sind als historisch geformte Handlungsressourcen intersubjektiv verfügbar und kritisierbar. Die Frage nach den Werten, die Forschungsprozessen ihre Form geben, wäre damit empirisch (nicht „normativ“) zu beantworten. Diese wissenschaftsimmanenten Werte sind nicht von umfassenderen oder tiefer liegenden normativen Ordnungen zu trennen, die im Rahmen der Soziologie der Konventionen als Konventionen bezeichnet werden. Im französischen Neopragmatismus sind die sogenannten Konventionen als alltagspraktische Ressource für die Kritik und Legitimierung untersucht worden. Die Diskussion epistemischer Werte führt daher zwangsläufig zur Frage der Kritik, die ihrerseits nicht mit Bezug auf eine transzendente Wahrheit, sondern nur konkret und „realistisch“ beantwortet werden kann.
Gesundheitspädagogik im Medium visualisierter Messungen
Authors: Klinge Denise , Krämer Franz , Petzi Moritz
Published: February 2020

Visualisierungen dienen innerhalb medizinischer Messungen als Medium der Vermittlung und Kontextualisierung von Messresultaten. Über das betriebliche Gesundheitsmanagement (BGM), das unter Gesundheitsförderung auch die Erzeugung von Gesundheitskompetenz subsumiert, haben solche Messungen und ihre Visualisierungen in Arbeitskontexte Einzug gehalten. Der These folgend, dass jene Visualisierungen kontextabhängig und interpretationsbedürftig sind, stellen wir die Frage, wie Messungen und Visualisierungen im BGM (pädagogisch) gerahmt werden, und wie die Akteure damit umgehen. Im Anschluss an betrieblich organisierte Herzratenvariabilitätsmessungen wurden drei MitarbeiterInnen und der durchführende Messexperte narrativ interviewt. Die Ergebnisse zeigen, dass die TeilnehmerInnen die Messung vor dem Hintergrund ihrer Gesundheitsorientierungen unterschiedlich erfahren: als Wettbewerb, als etwas Empörendes und der ärztlichen Vergewisserung Bedürftiges und als etwas, das Ohnmacht hervorruft. Zusammenfassend ließ sich zeigen, dass die Ambiguität von Messresultaten im Messprozess unzureichend thematisiert wurde, und dass die verwendeten Visualisierungen für die TeilnehmerInnen eine weit höhere Bedeutung besaßen als die mündlichen Kontextualisierungen des Messexperten. Ein Umstand, der vom Messexperten nicht berücksichtigt wurde, und der in Bezug auf Ergebnisvisualisierung messethische Reflexionen angeraten erscheinen lässt.
Impact of crystallite size on the performance of a beryllium reflector
Authors: DiJulio Douglas D. , Lee Yong Joong , Muhrer Gunter
Published: February 2020

Beryllium reflectors are used at spallation neutron sources in order to enhance the low-energy flux of neutrons emanating from the surface of a cold and thermal moderator. The design of such a moderator/reflector system is typically carried out using detailed Monte-Carlo simulations, where the beryllium reflector is assumed to behave as a poly-crystalline material. In reality, however, inhomogeneities in the beryllium could lead to discrepancies between the performance of the actual system when compared to the modeled system. The dependence of the total cross-section in particular on crystallite size, in the Bragg scattering region, could influence the reflector performance, and if such an effect is significant, it should be taken into account in the design of the moderator/reflector system. In this paper, we report on the preliminary results of using cross-section libraries, which include corrections for the crystallite size effect, in spallation source neutronics calculations.
Faktor ibu, pola asuh anak, dan MPASI terhadap kejadian stunting di kabupaten Gorontalo
Authors: Indah Nurdin Siti Surya , Octaviani Katili Dwi Nur , Ahmad Zul Fikar
Published: February 2020

Latar belakang: Stunting merupakan retardasi pertumbuhan linier kurang dari standar menurut usianya. Masalah stunting masih merupakan salah satu masalah terbesar di Kabupaten Gorontalo. Tujuan penelitian: Diketahuinya pengaruh faktor ibu, pola asuh, dan variasi MPASI terhadap kejadian stunting di Kabupaten Gorontalo. Metode: Desain penelitian menggunakan Case Control Study. Seluruh balita di Kabupaten Gorontalo menjadi Populasi studi. Sampel kasus merupakan balita yang menderita stunting, dan sampel kontrol adalah balita normal. Jumlah sampel sebanyak 118 balita. Sampel kasus dipilih dengan menggunakan purposive sampling dan sampel kontrol dipilih menggunakan random sampling. Data dianalisis dengan menggunakan uji Chi Square dan Logistic Regression. Hasil: pola asuh (OR = 3,901, 95% CI 1,692 – 8,994), variasi MPASI (OR = 3,260, 95% CI 1,371 – 7,750), riwayat KEK (OR = 2,482, 95% CI 1,013 – 6,081) dan pendidikan ibu (OR = 2,345, 95% CI 1,007 – 5,456). Umur ibu, pemberianASI Ekslusif, makanan pendamping ASI (MPASI), konsumsi snak hampir tiap hari, dan konsumsi mie instan 3 kali dalam seminggu bukan merupakan faktor risiko kejadian stunting. Simpulan: Faktor ibu yaitu pendidikan ibu, riwayat KEK, pola pemberian MPASI, dan pola asuh merupakan faktor risiko kejadian stunting.
Hubungan anemia dalam kehamilan dengan kejadian perdarahan postpartum di RSU PKU Muhammadiyah Bantul tahun 2018
Authors: Fasha Nova Liana , Rokhanawati Dewi
Published: February 2020

Latar belakang: Perdarahan postpartum masih merupakan salah satu penyebab kematian ibu yaitu sebesar 28%. Perdarahan postpartum yang tidak ditangani dapat mengakibatkan syok Haemorrhage, infeksi nifas, dan anemia masa nifas. Salah satu faktor predisposisi dari perdarahan postpartum adalah anemia pada kehamilan. Tujuan penelitian: Mengetahui hubungan anemia dalam kehamilan dengan kejadian perdarahan postpartum di RSU PKU Muhammadiyah Bantul. Metode: Penelitian kuantitatif dengan survey analitik ini menggukanan pendekatan casecontrol dengan jumlah responden 104 yang terdiri 52 sampel kasus dan 52 sampel kontrol. Pengambilan data menggunakan data sekunder, dan analisa data menggunakan korelasi Chi Square Hasil: Analisis data menggunakan chi-squre dengan nilai p-value menunjukan hasil 0,000 (p 0,05), nilai OR 5,078 dengan CI 95% (2,205-11,694). Terdapat hubungan anemia dalam kehamilan dengan kejadian perdarahan postpartum di RSU PKU Muhammadiyah Bantul. Simpulan: ibu hamil dengan anemia mempunyai resiko 5x lebih besar mengalami perdarahan postpartum dibandingkan dengan ibu hamil yang tidak mengalami anemia.
The Implementation of K-Means Algorithm to Analyse the Level of Employee Job Satisfaction Using Laravel Framework
Authors: Kusniyati Harni
Published: February 2020

Every company needs to know the level of job satisfaction of their employees that can be used as suggestion and critics to help consider the way to manage their human resources. It aims to encourage their employees to work optimally. One of the ways to find out the level of employee job satisfaction is by conducting one on one (face-to-face meeting between boss and employee) to get information about job satisfaction in terms of workload, work environment, team relationship, and other aspects. The information given to HRD and top manager is then used as consideration for the company to increase the human resource management. For time efficiency, it is made an application using Laravel framework that implements K-Means algorithm. In this case, the implementation of K-Means algorithm becomes a solution by analyzing data of employee job satisfaction in the company. The result of calculation process of K-Means algorithm forms a cluster used to obtain the description of the level of employee job satisfaction toward policies in the company.
Management by risk of water sources contamination from soil by herbicide 2,4-D
Authors: Khorobrykh R. R. , Galiulin R. V. , Galiulina R. A. , Bashkin V. N.
Published: February 2020

The possibility of management by risk of surface and underground water sources contamination from soil by herbicide 2,4-D by active coals application was estimated. Active coals absorb the herbicide which is in the soil and its migration in water sources prevent. The effect of sorption by active coals has been established on the content of herbicide in a liquid phase of soil presented by capillary and gravitational moisture.
On the choice of mathematical methods for assessing the value of real options for capacity extension of oil and gas projects
Authors: Khat’kov V. Yu. , Zubarev G. V. , Demkin I. V. , Pozhidaev E. V. , Nikonov I. M.
Published: February 2020

The article presents the results of the study of cost evaluation of a real option for capacity extension of a two-phase liquefied natural gas production project and the economic effect of reserving capacity in the project. The expediency of using the simulation method to solve the problem of assessing the economic efficiency of the project with the real option at different stages of the project cycle is shown. Recommendations are given on using methods for constructing a binomial and a numerical integration models as additional (testing) methods for assessing the economic efficiency of a project with an option at the pre-investment stage.
ANALISIS POLA PEMBELIAN PRODUK MAKANAN RINGAN MENGGUNAKAN ALGORITMA APRIORI
Authors: Hadinata Novri , Kurniawan Kurniawan
Published: February 2020

CV. Sukses Mandiri merupakan perusahaan swasta yang bergerak sebagai distributor tunggal biskuit AIM yang berasal dari Surabaya dan berbagai macam snack (produk makanan ringan) yang berasal dari Surabaya dengan daerah operasinya meliputi wilayah Sumatera Bagian Selatan dan Bengkulu. Tujuan dalam penelitian ini yaitu memberikan informasi kepada pihak pengambil keputusan terkait dengan pola pembelian pelanggan terhadap produk makanan ringan sehingga dalam pengambil keputusan dapat menentukan tindakan yang akan dilakukan dikemudian hari. Algoritma yang digunakan dalam penelitian ini yaitu algoritma apriori dengan teknik data mining yang terdiri dari data cleaning, data integration, data selection, data transformation, Proses mining, dan pattern evaluation. Sedangkan metode penelitian ini adalah metode deskriptif. Dari hasil penelitian terdapat 6 itemset barang yang paling sering dibeli oleh konsumen. Adapun item barang tersebut adalah 78003CTN (Mie Tek-Tek), HHJH002CTN (Hoka-Hoka Jelly Es Potong), JSI001CTN (Hepillo Ayam Bawang), JSI002CTN (Hepillo Barbeque), JSI004 (Hepillo Sapi Panggang), dan SPJ065CTN (Wafer Kita 2 Rasa).
Perancangan E-Tracer Study berbasis Sistem Cerdas
Authors: Akbar Rizaldi , Mukhtar Mukhtar
Published: February 2020

Penggunaan tracer study merupakan mediasi dalam pegukuran kinerja lulusan, tetapi hal yang paling menarik disini adalah dimana aplikasi tracer study tidak disediakan secara gratis, kebanyakan perguruan tinggi memiliki masalah yang komplek seperti kurangnya dana, fasilitas hingga SDM dalam bidang IT yang membuat tracer study tidak banyak digunakan maupun tersebar di berbagai website Perguruan Tinggi. Terkait hal tersebut, diharapkan e-tracer study berbasis sistem cerdas dapat membantu perguruan tinggi mendapatkan suatu keputusan dan e-tracer study dikembangkan dalam bentuk open source sehingga dapat digunakan dan dikembangkan secara gratis oleh setiap Perguruan Tinggi di Indonesia. Dari hasil penelitian maka dapat disumpulkan bahwa penelitian ini berhasil merancang e-tracer study yang dibangun dengan framework codeigniter dan bahasa pemograman pendukung terdiri dari HTML, CSS, Jquery, Java Script, JSON, AJAX, Boostrap sebagai media dalam perancangan antar muka. Sedangkan PHP sebagai server side dan MySQL sebagai database. Pada proses perancangan dilakukan melalui tahapan rumusan masalah, literatur studi, pengumpulan datam analisis kebutuhan, desai system dan pengujian aplikasi. Pada proses pengujian menggunakan metode blackbox dan diukur dengan menggunakan metode usabilitity test pada pengukuran 5 (lima) komponen terdiri dari; learnability, efficiency, memorability, errors, dan satisfaction yang didapatkan melalui penyebaran kuisioner kepada mahasiswa dan alumni. e-tracer study menggunakan kuisioner berdasarkan peraturan dan pedoman pusat karir dan tracer study 2017, dan pada proses pengisian alumni tidak menggunakan modul register tetapi alumni cukup mengisi form pendaftaran yang disediakan, hal ini dilakukan berdasarkan hasil usability test bahwa alumni AMIK Indonesia sangat tidak menyukai proses register dan aktivasi.
Phenotypic Correlation of Body Weight and Linear Body Measurements in Muscovy (Cairinia Moschata) and Mallard (Anas Platyrhynchos) Ducks
Authors: F. I. Ologbose , S. W. Mbara
Published: February 2020

Data on body weight and linear body measurements (LBMs) namely body height (BH), body length (BL), breast circumference (BC), thigh length (TL), bill length (BiL), wing length (WL) and shank length (SL) were taken from 120 ducks (i. e. 60 Muscovy and 60 Mallard ducks) at 4 and 8 weeks of age were analysed to obtain the phenotypic correlation between LBMs and body weight. The value of the pearson’s linear correlation coefficient to determine the level of relationship between the body weight and linear body measurement. This ranged from 0.488 (SL) – 0.996 (BH) and (0.729 (SL) – 0.996 (Bil) in Muscovy and Mallard duck at week 4 respectively. While, at week 8, the value of the pearson’s linear correlation coefficient ranges from 0.126 (Bil) – 0.960 (BL) and 0.735(BC) – 0.978 (BH) respectively. This positive and mostly significantly phenotypic relationship between the body weight and linear body measurements indicates that an improvement in one trait could leads to an improvement in the other. Correlation coefficients indicate the strength of a linear relation between traits and thus provide useful information about the traits involved for the purpose of breeding and improvement plan. This shows that favourable relationships exist among traits that have higher correlation coefficients, it further explains that such traits could be collectively included in the selection index to achieve positive phenotypic progress.
Еколого-ценотична характеристика оселищ долини річки Оржиця як перспективного об’єкта Смарагдової мережі
Authors: ШЕВЧИК ВАСИЛЬ ЛЕОНОВИЧ , СМОЛЯР НАТАЛІЯ ОЛЕКСІЇВНА , СОЛОМАХА ІГОР ВОЛОДИМИРОВИЧ , ШЕВЧИК ТАРАС ВАСИЛЬОВИЧ
Published: February 2020

Наведено фізико-географічну характеристику долини річки Оржиця з притокою Гнила Оржиця. Різноманітність оселищ, включених до Резолюції 4 Бернської конвенції, дозволяє розглядати цю територію як перспективний об’єкт Смарагдової мережі України. Цьому сприяє й наявність на досліджуваній території ряду об’єктів природно-заповідного фонду України (заказників гідрологічних «Оржицький», «Тимківський», ботанічного «Плисів Яр», заповідного урочища «Загать» та ін.). Для долини річки Оржиця встановлено 17 оселищ, наведено їх еколого-ценотичні характеристики та особливості територіального розподілу. Здійснено загальну оцінку ботанічної складової різних типів рослинності та вказано місцезнаходження рідкісних видів рослин цієї території, включених до созологічних переліків різного рангу (регіонального – 9 видів), державного (Червона книга України – 5) та міжнародних (Бернська конвенція – 3). Вказано на необхідність збереження та забезпечення охороною популяцій рідкісних видів рослин Iris hungarica, Jurinea cyanoides, Ostericum palustre, які, маючи й інші созологічні статуси, включені до Додатку І Резолюції 6 Бернської конвенції (1998). Пропонуються деякі заходи екологічного менеджменту цієї території, зокрема доцільно заборонити подальше розорювання місцевостей, осушення заплавних ділянок, заліснення лучно-степових схилів, випалювання сухого травостою й стимулювання сінокосіння травостоїв та їхнє випасання за прогонним типом.
Student Teacher Engagement in Co-Teaching Strategies
Authors: Stobaugh Rebecca , Everson Kimberlee
Published: February 2020

Recently there has been increasing emphasis on co-teaching experiences for teacher candidates. Despite the significance of collaboration between cooperating teachers and student teachers, limited empirical attention has focused on student teachers' co-teaching experiences. The following study utilized survey data to ascertain if student teachers' use of different co-teaching strategies changed over the course of their student teaching semester, as well as, compared student teacher use of co-teaching strategies in elementary, middle, and secondary program areas. Pilot Study Survey data revealed that approximately one-fourth of the student teacher's time is spent teaching alone. However, the Student Teacher Survey data indicated that the Team Teaching co-teaching strategy increased more than any other co-teaching strategy in all program areas. The study concludes that as teacher education programs seek to maximize the benefits of the co-teaching model, student teachers and cooperating teachers need additional training in ways to utilize all the co-teaching strategies to maximize student learning.
Circulating Microparticles as a Predictor of Vascular Properties in Patients on Mechanical Circulatory Support; Hype or Hope?
Authors: IVAK P. , PITHA J. , NETUKA I.
Published: February 2020

Microparticles are small circulating vesicles originating from circulatory system and vascular wall cells released during their activation or damage. They possess different roles in regulation of endothelial function, inflammation, thrombosis, angiogenesis, and in general, cellular stress. Microparticles are the subject of intensive research in pulmonary hypertension, atherosclerotic disease, and heart failure. Another recently emerging role is the evaluation of the status of vasculature in end-stage heart failure patients treated with implantable ventricular assist devices. In patients implanted as destination therapy, assessment of the long-term effect of currently used continuous-flow left ventricular assist devices (LVADs) on vasculature might be of critical importance. However, unique continuous flow pattern generated by LVADs makes it difficult to assess reliably the vascular function with most currently used methods, based mainly on ultrasound detection of changes of arterial dilatation during pulsatile flow. In this respect, the measurement of circulating microparticles as a marker of vascular status may help to elucidate both short- and long-term effects of LVADs on the vascular system. Because data regarding this topic are very limited, this review is focused on the advantages and caveats of the circulating microparticles as markers of vascular function in patients on continuous-flow LVADs.
Diagnóstico del manejo de residuos sólidos: un análisis comparativo de los diferentes procesos del sector textil-confección en la ciudad de Medellín
Authors: Vélez Castañeda Chárol Kátherin , Beatriz Elena Osorio Vélez Beatriz Elena Osorio Vélez , Rodríguez Caro Yesit Jovan
Published: February 2020

Este artículo presenta una reflexión acerca del manejo de los residuos sólidos que generan las empresas del sector textil-confección en la Ciudad de Medellín; donde en la etapa productiva se desechan muchos materiales que tienen posibilidad de ser reutilizados. Por lo anterior es importante conocer y aplicar la logística inversa para el aprovechamiento de dichos residuos, bajar la afectación al medio ambiente y apostarle a la responsabilidad social empresarial generando mejor bienestar para todos. El componente metodológico se construyó desde un enfoque mixto, la recolección de la información se consolido a través de una encuesta, seguidamente se realizó el trabajo con una población de 61 empresas, luego se sistematizó la información para hacer el comparativo. El análisis realizado muestra que la logística en reversa no se aplica en estas empresas y su implementación sería una forma de aprovechar los recursos, la materia prima, logrando la reducción de los costos en el proceso productivo.
Metodología de desarrollo de software para plataformas educativas robóticas usando ROS-XP
Authors: Jiménez Builes Jovani Alberto , Ramírez Bedoya Diego León , Branch Bedoya John Willian
Published: February 2020

Este artículo presenta una metodología basada en el proceso ágil de XP para el desarrollo de software orientado a robots en plataformas educativas usando middleware ROS. El resultado final fue un conjunto de evidencias tales como historias de usuarios, diagramas basados en UML y líneas de código en el lenguaje Python que demuestran buenas prácticas de calidad de código en el desarrollo de software con el uso del paradigma orientado a objetos. Se obtiene una metodología ágil modificada con un diseño evolutivo e incremental pero con una documentación rigurosa útil para proyectos educativos y de investigación.
Predicción electoral usando un modelo híbrido basado en análisis sentimental y seguimiento a encuestas: elecciones presidenciales de Colombia
Authors: Callejas Cuervo Mauro , Vélez Guerrero Manuel Andrés
Published: February 2020

La disponibilidad de los medios digitales ha proporcionado una poderosa herramienta para expresar opiniones incluyendo aspectos sociales y políticos desarrollados en cada región. En Colombia, el uso de redes sociales ha dado lugar a la difusión masiva de opiniones políticas, especialmente durante el período de campaña en las elecciones presidenciales nacionales. Este trabajo propone un modelo híbrido para predecir el desenlace de la primera vuelta en las elecciones presidenciales de Colombia en 2018 (pre-hoc), cuyo objetivo es minimizar el error absoluto y mejorar la calidad de la predicción final. Las actividades de los usuarios en Twitter y Facebook fueron registradas y analizadas, obteniendo como resultado una predicción precisa y coherente con la realidad, donde el RMSE del modelo híbrido ronda el 2,47%, superando en promedio el RMSE de las firmas encuestadoras tradicionales más prominentes del país. Adicionalmente también se predijo el valor del abstencionismo electoral con un error diferencial de 1,72% con respecto al valor real, demostrando la confiabilidad de la metodología propuesta.
Uncertainty Propagation through a Point Model for Steady-State Two-Phase Pipe Flow
Authors: Strand Andreas , Smith Ivar Eskerud , Unander Tor Erling , Steinsland Ingelin , Hellevik Leif Rune
Published: February 2020

Uncertainty propagation is used to quantify the uncertainty in model predictions in the presence of uncertain input variables. In this study, we analyze a steady-state point-model for two-phase gas-liquid flow. We present prediction intervals for holdup and pressure drop that are obtained from knowledge of the measurement error in the variables provided to the model. The analysis also uncovers which variables the predictions are most sensitive to. Sensitivity indices and prediction intervals are calculated by two different methods, Monte Carlo and polynomial chaos. The methods give similar prediction intervals, and they agree that the predictions are most sensitive to the pipe diameter and the liquid viscosity. However, the Monte Carlo simulations require fewer model evaluations and less computational time. The model predictions are also compared to experiments while accounting for uncertainty, and the holdup predictions are accurate, but there is bias in the pressure drop estimates.
Straw Incorporation Management Affects Maize Grain Yield through Regulating Nitrogen Uptake, Water Use Efficiency, and Root Distribution
Authors: Sui Pengxiang , Tian Ping , Lian Hongli , Wang Zhengyu , Ma Ziqi , Qi Hua , Mei Nan , Sun Yue , Wang Yingyan , Su Yehan , Meng Guangxin , Jiang Ying
Published: February 2020

Returning crop straw to soil can potentially improve soil health and crop production, facilitating sustainable agriculture. However, the effects of straw incorporation with various tillage management techniques combined with nitrogen (N) regimes on crop root growth, and water and N utility are not well understood. In this study, rotary tillage (RTS) and plow tillage (PTS) for straw incorporation combined with N regimes (CK, no N applied; LN, 112 kg N ha−1; MN, 187 kg N ha−1; and HN, 262 kg N ha−1) were used to determine their effects on soil water and mineral N availability, root distribution, crop N uptake, grain yield, and water use efficiency (WUE) of maize in northeast China. The results demonstrate that higher levels of pre-sowing soil-water storage and field evapotranspiration (ET), and lower levels of WUE and pre-sowing soil mineral N storage (Nmin-PS) at a depth of 0–60 cm were obtained with the RTS treatments as compared to the PTS treatments. N addition improved Nmin-PS and post-harvest soil mineral N storage (Nmin-PH) at a depth of 60–100 cm in 2016, and increased WUE compared to CK. RTS treatments enhanced root weight density (RWD) at a depth of 0–60 cm in 2016–2017, root length density (RLD), ratio of root length density (RLDR), and ratio of root weight density (RWDR) at a depth of 30–60 cm in 2016, and RLD at a depth of 0–30 cm in 2017. N addition promoted RLD and RWD at a depth of 0–10 cm in 2016–2017. RTS treatments reduced pre-silking shoot N uptake (NPS) and grain yield. Shoot N uptake and grain yield were enhanced in response to increasing levels of N; however, the grain yield did not show further significant improvements when the amount of N applied was over 187 kg N ha−1 (except for RTS in 2016). Overall, tillage with straw incorporation management and N levels markedly affected the soil physicochemical properties (such as ET, Nmin-PS, and Nmin-PH). This influenced grain yield indirectly by further mediating root traits (RLD, RWD, RLDR, and RWDR) with consequences for the NPS and post-silking shoot N uptake (NPOS) of maize, which were found to have greatest direct and positive impact on maize grain yield.
Permeability Evaluation of Clay-quartz Mixtures Based on Low-Field NMR and Fractal Analysis
Authors: Lu Zhen , Sha Aimin , Wang Wentong
Published: February 2020

Nuclear magnetic resonance (NMR) technology has been widely used for predicting permeability coefficients of porous medium, such as shales, sandstones, and coals. However, there have been limited studies on the prediction model of clay-quartz mixtures based on NMR technology. In this study, evaporation tests at 40 °C and NMR tests were simultaneously performed on eight clay-quartz mixtures with different mineral compositions. The results show that during the evaporation process, the decay rate of T2 total signal amplitudes was constant at first, and then decreased to 0 after a period of time. Based on the decay rate, the evaporation process was divided into two stages: the constant rate stage and the falling rate stage. Based on the two stages, the T2 cut-offs of eight mixtures were determined. The water in the mixture was divided into two parts by the T2 cut-off: the free water and the bound water. The prediction model of permeability coefficients of clay-quartz mixtures was established based on the Timur-Coates model. In order to simplify the process of predicting the permeability coefficient, fractal analysis was used to develop the relationship between the T2 cut-off and fractal dimension of the T2 spectrum of saturated mixture. A simplified method for predicting permeability coefficients of clay-quartz mixtures based on NMR technology without centrifugal and evaporation experiments was also proposed.
Progress in Combustion Diagnostics, Science and Technology
Authors: Medwell Paul , Evans Michael , Chan Qing
Published: February 2020

The role that combustion plays in energy systems remains crucial in supplying the world’s ever-increasing power demands [...]
Special Issue of the Manufacturing Engineering Society 2019 (SIMES-2019)
Authors: Camacho Ana María , Rubio Eva María
Published: February 2020

The Special Issue of the Manufacturing Engineering Society 2019 (SIMES-2019) has been launched as a joint issue of the journals “Applied Sciences” and “Materials”. The 10 contributions published in this Special Issue of Applied Sciences present cutting-edge advances in production planning, sustainability, metrology, cultural heritage, and materials processing with experimental and numerical results. It is worth mentioning how the topic “production planning” has attracted a great number of contributions in this journal, due to their applicative approach.
Modification Point Aware Test Prioritization and Sampling to Improve Patch Validation in Automatic Program Repair
Authors: Venugopal Yazhini , Quang-Ngoc Phung , Eunseok Lee
Published: February 2020

Recently, Automatic Program Repair (APR) has shown a high capability of repairing software bugs automatically. In general, most of the APR techniques require test suites to validate automatically generated patches. However, the test suites used for patch validation might contain thousands of test cases. Running these whole test suites to validate every program variant makes the validation process not only time-consuming but also expensive. To mitigate this issue and to enhance the patch validation in APR, we introduce (1) MPTPS (Modification Point-aware Test Prioritization and Sampling), which iteratively records test execution. Based on the failed test information, it performs test prioritization, then sampling to reduce the test execution time by moving forward the test cases that are most likely to fail in the test suite; and (2) a new fitness function that refines the existing one to improve repair efficiency. We implemented our MPPEngine approach in the Astor workspace by extending jGenProg. And the experiments on the Defects4j benchmark against jGenProg show that, on average, jGenProg consumes 79.27 s to validate one program variant, where MPPEngine takes only 33.70 s for results in 57.50% of validation time reduction. Also, MPPEngine outperforms jGenProg by finding patches for six more bugs than jGenProg.
Importance of Event Binary Features in Stock Price Prediction
Authors: Song Yoojeong , Lee Jongwoo
Published: February 2020

In Korea, because of the high interest in stock investment, many researchers have attempted to predict stock prices using deep learning. Studies to predict stock prices have been continuously conducted. However, the type of stock data that is suitable for deep learning has not been established, and it has not been confirmed that the developed stock prediction model can actually result in a profit. To date, designing a good deep learning model depends on how well the user can extract the features that represent all the characteristics of the training data. Among the various available features for training and test data, we determined that the use of event binary features can make stock price prediction models perform better. An event binary feature refers to a 0 or 1 value describing whether an indicator is satisfied (1) or not (0) for any given day and stock. We proposed and compared a stock price prediction model with three different feature combinations to verify the importance of binary features. As a result, we derived a prediction model that defeated the market (KOSPI and KODAQ (KOSPI (Korea Composite Stock Price Index) and KOSDAQ (Korean Securities Dealers Automated Quotations) is Korean stock indices)). The results suggest that deep learning is suitable for stock price prediction.
Effects of Gamma-Valerolactone Assisted Fractionation of Ball-Milled Pine Wood on Lignin Extraction and Its Characterization as Well as Its Corresponding Cellulose Digestion
Authors: Ahmed Muhammad Ajaz , Lee Jae Hoon , Raja Arsalan A. , Choi Joon Weon
Published: February 2020

Gamma-valerolactone (GVL) was found to be an effective, sustainable alternative in the lignocellulose defragmentation for carbohydrate isolation and, more specifically, for lignin dissolution. In this study, it was adapted as a green pretreatment reagent for milled pinewood biomass. The pretreatment evaluation was performed for temperature (140–180 °C) and reaction time (2–4 h) using 80% aqueous GVL to obtain the highest enzymatic digestibility of 92% and highest lignin yield of 33%. Moreover, the results revealed a positive correlation (R2 = 0.82) between the lignin removal rate and the crystallinity index of the treated biomass. Moreover, under the aforementioned conditions, lignin with varying molecular weights (150–300) was obtained by derivatization followed by reductive cleavage (DFRC). 2D heteronuclear single quantum coherence nuclear magnetic resonance (2D-HSQC-NMR) spectrum analysis and gel permeation chromatography (GPC) also revealed versatile lignin properties with relatively high β-O-4 linkages (23.8%–31.1%) as well as average molecular weights of 2847–4164 with a corresponding polydispersity of 2.54–2.96, indicating this lignin to be a heterogeneous feedstock for value-added applications of biomass. All this suggested that this gamma-valerolactone based pretreatment method, which is distinctively advantageous in terms of its effectiveness and sustainability, can indeed be a competitive option for lignocellulosic biorefineries.
“Fragile Possibilities”: The Role of the Artist’s Book in Public Art
Authors: Speight Elaine , Quick Charles
Published: February 2020

Writing during the millennium, not long after the installation of Antony Gormley’s The Angel of the North, artist and publisher Simon Cutts criticised the dominance of monumentalism within the field of public art. Decrying the lack of critical engagement offered by public sculpture, he called for an alternative approach, focussed upon process rather than product. Almost two decades later, it could be argued that mainstream understandings of public art have expanded to incorporate more ephemeral approaches, such as performance, sound art and social interventions. Within this context, the artist’s book has come to occupy a significant role within the production, dissemination and interpretation of such work. This has been accompanied by a growing interest in the artist’s book as a public artwork in its own right. These two distinct yet interrelated approaches form the subject of our essay. Drawing on examples of artists’ books held in the Special Collections at Manchester Metropolitan University and the library collections at Henry Moore Institute as well as from our own curatorial practice, we argue that, far from ancillary artefacts, artists’ books play a pivotal role within the production of public art and provide an important space in which to critically engage with the complexities of place.