bluuebunny/crossref_metadata_2025 huggingface dataset:
Penilaian Risiko K3 pada Pengaliran BBM ke Tangki Timbun dengan Menggunakan Metode HAZOP dan FTA
Authors: Cantika Nadhira Anly , Fathimahhayati Lina Dianati , Pawitra Theresia Amelia
Published: July 2022

Bahan bakar yang ada di PT Pertamina (Persero) Marketing Operation Region VI Fuel Samarinda didapatkan langsung dari dari PT Pertamina (Persero) Marketing Operation Region V Fuel Pertamina Balikpapan yang didistribusikan melalui jalur transportasi laut dengan menggunakan kapal pengangkut. Selama pengaliran BBM berlangsung, terdapat potensi risiko yang timbul dan dapat mempengaruhi keselamatan dan kesehatan pekerja lapangan. Penelitian ini bertujuan untuk mengetahui identifikasi risiko yang terjadi selama pengaliran BBM, menentukan level risiko dan akar penyebab risiko, serta memberikan usulan perbaikan yang tepat. Pada penelitian ini menggunakan dua metode yaitu metode HAZOP dan FTA. Jenis penelitian adalah semi kualitatif dengan teknik pengambilan data berupa wawancara terhadap divisi HAZOP & FTA. Rancangan penelitian dengan menggunakan observasi lapangan terlebih dahulu sebelum dilakukan wawancara. Data yang digunakan selama penelitian berupa data risiko yang muncul, deviasi, cause, consequence dan safeguard dengan menggunakan teknik pengumpulan data wawancara. Metode HAZOP digunakan untuk mengidentifikasi risiko, deviasi, consequence, serta level risiko dari kegiatan yang dilakukan selama pengaliran BBM. Level risiko tinggi & ekstrim ditindaklanjuti dengan metode FTA (Fault Tree Analysis) untuk mengetahui akar masalah terjadinya risiko sehingga dapat memberikan rekomendasi perbaikan yang sesuai. Analisis HAZOP menunjukkan identifikasi risiko sebanyak 47 risiko, dimana 53,20% untuk risiko rendah, 38,30% untuk risiko sedang, 4,25% untuk risiko tinggi dan 4,25% untuk risiko ekstrim. Hasil FTA menunjukkan terdapat 15 akar masalah terjadinya risiko dan rekomendasi perbaikan diberikan berdasarkan akar masalah yang terjadi selama pengaliran berlangsung.
TÜRKİYE UNESCO GEÇİCİ LİSTESİNDEKİ MİRASLARIN BELEDİYE STRATEJİK PLANLARINDA YERİ
Authors: HALAÇ Hicran Hanım , SAATCİ İZCİ Büşra , DAĞLI Hilal , GÜLŞEN Merve
Published: July 2022

Türkiye kültürel mirası açısından zengin bir ülkedir. Türkiye’nin UNESCO Dünya Mirası Listesi'nde 18, geçici listesinde 83 tane miras bulunmaktadır. Bu evrensel değerlere sahip olmak aynı zamanda herkes adına koruma sorumluluğunu da üstlenmektir. Kültürel miraslarımızın korunması ve evrensel boyutta tanıtılması gerekmektedir. Mirasa dair farkındalık kullanıcılar, ziyaretçiler ve yerel yönetimlerden başlayarak en üst düzeye kadar herkes tarafından oluşturulmalıdır. Bu da miras yönetim planlamalarının yapılmasıyla mümkündür. Bu çalışmada UNESCO Dünya Mirası Geçici Listesi'nde bulunan mirasların yönetimlerinden sorumlu belediyelerin, UNESCO ve kültürel miras farkındalığının stratejik plan üzerinden değerlendirilmesi amaçlanmıştır. Geçici listede bulunan 77 miras toplam 104 adet belediyenin sınırları içinde yer almaktadır. Bu miraslara sahip 42 belediyenin stratejik planına ulaşılamamış ve önceki dönemlere ait 8 stratejik plan kapsam dışında tutularak 2020-2024 dönemine ait 54 adet plan çalışma kapsamında incelenmiştir. Amaçlı örneklem yöntemiyle seçilen stratejik planlar içerik analizi yöntemi kullanılarak incelenmiştir. Belirlenen dört başlık içinde “kültür”,” tarih”, “UNESCO”, “turizm” ve “koruma” anahtar kelimeleriyle miras adları analiz edilmiştir. İncelenen belediyelerin stratejik planlarında bu miraslara yönelik farkındalığ yeterince olmadığı ve gelecek stratejileri arasında gerekli yeri almadığı tespit edilmiştir.
THE EFFECT OF INTEGRATED LOGISTICS SUPPORT SYSTEM ON LIFE CYCLE MANAGEMENT
Authors: ESKİ Sulhi , ÖZASLAN İlker Hakan
Published: July 2022

The Life Cycle is defined as a process that begins with the demonstration of an intended ability and ends when it becomes out of use. Extending the life cycle will reduce costs and increase efficiency.Integrated Logistics Support (ILS); It increases the service life of the products and minimizes the need for support; In this way, it provides financial benefit by reaching higher gains in the long term. Due to the understanding of these benefits, it is a system that is frequently applied by businesses. By successfully applying ILS, the life cycle of aircraft, systems, tools and equipment is extended and costs are reduced.The aim of the study; A product or a system integrated to provide maximum use of the opportunity at minimal cost by extending the life cycle of the Logistics Support Turkey is to identify and remedy the causes of failure of the application.Fieldwork method and interview technique were used in the study. The reasons for the failure of the Integrated Logistics Support application on the life cycle have been identified through a study on aircraft. It has been determined;The positive effect of Integrated Logistics Support especially extends the life cycle, prevents premature modification, prevents price increases in spare parts supply, facilitates the availability of spare parts, facilitates the provision of technical documentation, provides planning and execution of personnel training, and the problems of supplying special tools with the system or vehicle.
ULUSLARARASI PETROL ÜRETİM REKABETİNİN OYUN TEORİSİ İLE ANALİZİ
Authors: ÇELİK Kayhan , KAPLAN Fatih
Published: July 2022

Uluslararası ham petrol piyasasında oyuncuların OPEC (Petrol İhraç Eden Ülkeler Örgütü) üye ülkeleri ile OPEC’e üye olmayan petrol üreten ülkeler (non-OPEC) oldukları varsayımı yaygındır. Söz konusu oyuncuların kâr maksimizasyonu ve/veya petrol piyasalarını kontrol edebilme hedefiyle üretim seviyesi ve fiyat gibi çeşitli strateji kümeleri kullanarak rekabet eğilimine girmeleri söz konusu piyasanın oyun modelleri ile analiz edilebilirliğini ortaya koymaktadır. Bu çalışmanın amacı, OPEC ve non-OPEC ülkelerinin rekabete dayalı petrol üretim miktarlarını oyun teorisi temelinde analiz etmektir. Bu amaç doğrultusunda, oyunculara ait 1972-2019 dönemini kapsayan üretim miktarları ve ham petrol fiyat serileri kullanılmıştır. Petrol piyasalarındaki rekabetin varlığına işaret eden üretim fonksiyonlarına ait katsayılar Tam Bilgi En Küçük Kareler (FMOLS- Fully Modified Ordinary Least Square) yöntemi ile tahmin edilmiştir. Elde edilen modellerden Cournot-Nash ve Stackelberg denge çözümleri hesaplanmıştır. Cournot-Nash denge düzeyine göre Stackelberg denge düzeylerinde lider oyuncunun üretiminin artığı, takipçi oyuncunun üretim düzeyinin ise azaldığı görülmüştür. Bulgular Cournot-Nash denge çıktılarının Stackelberg denge çıktılarından daha yüksek olduğu çalışmalar ile paralellik göstermiştir. Oyuncuların üretim miktarı ve fiyat stratejileri vasıtasıyla optimum üretim düzeyine ulaşmaları için Cournot-Nash dengesinde kalmaları önerilmektedir.
KAMU HARCAMALARI VE EKONOMİK BÜYÜME İLİŞKİSİ: KIRILGAN BEŞLİ ÖRNEĞİ
Authors: GÖKMENOĞLU Mustafa , YAVUZ İsmail Sadık
Published: July 2022

Ekonomik büyüme ve kamu harcamaları ilişkisi geçmişten günümüze önemini ve güncelliğini korumayı başarmıştır. Teorik ve ampirik çalışmalarla, ekonomik büyüme ve kamu harcamaları ilişkisinin birçok yönü araştırılmaktadır. Bu kapsamda Keynes ve Wagner hipotezleri ise ekonomik büyüme ve kamu harcamaları arasındaki nedensel ilişkinin varlığının tespit edilmesi açısından literatürde yer alan önemli konu başlıklarındandır. Çalışmada cari açık ve enflasyon oranları yüksek bununla birlikte ekonomileri yabancı yatırıma bağlı olan Türkiye, Brezilya, Endonezya, Güney Afrika ve Hindistan’ın oluşturmuş olduğu Kırılgan Beşli ülkelerinin kamu harcamaları ve ekonomik büyüme arasındaki ilişki, Keynes ve Wagner hipotezleri açısından incelenmiştir. Uzun dönemli ilişkinin incelendiği Durbin-Hausman eşbütünleşme testi ekonomik büyüme ve kamu harcamaları arasında bir ilişkinin varlığına dair bulgular sunmazken; Dumitrescu-Hurlin nedensellik testi kısa dönemde kamu harcamalarından ekonomik büyümeye doğru tek yönlü Keynes hipotezini destekleyen sonuçlar vermiştir.
Anesthesia for Echocardiography and Magnetic Resonance Imaging in the African Clawed Frog (Xenopus laevis)
Authors: Corno Antonio F , Flores Noelia E , Li Wen , Gomez Thomas H , Salazar Jorge D
Published: July 2022

This report describes an anesthesia technique that we used to study cardiovascular anatomy and physiology with echocardiography and cardiac magnetic resonance (CMR) in 46 African clawed frogs (Xenopus laevis) (n= 24 for electrocardiography andn= 22 for CMR). For administration of anesthesia, 3 holding tanks, one each for transportation, sedation, and recovery, were filled with filtered water, with 0.05% buffered tricaine methasulfonate solution (MS-222) added into the sedation tank. Fifteen minutes after the frog was placed in the sedation tank, a paper towel was soaked in MS-222 solution, and the frog was placed in a supine position and rolled 3 to 4 times in the soaked paper with the head and legs exposed. Vital signs were monitored and recorded throughout the procedure. After imagining, frogs were unrolled from the paper towel, placed in the recovery tank, and later returned to their home tank. Monitoring was discontinued when the frogs resumed typical activity. No mortality or complications were observed in frogs that underwent this procedure. Mean duration ±1 SD of anesthesia induction was 12 ± 5 min in the echocardiography group and 14 ± 6 min in the CMR group. The mean duration of anesthesia maintenance was 60 ± 18 min in the echocardiography group and 118 ± 37 min in the CMR group. An additional dose of anesthesia was necessary during maintenance for 9 of 24 (37%) frogs in the echocardiography group and 6 of 22 (27%) frogs in the CMR group. At the end of the procedure, the mean oxygen saturation was 66 ± 9% in the echocardiography group and 85 ± 6% in the CMR group, and heart rate was 48 ± 13 beats/min in the echocardiography group and 42 ± 7 beats/min in the CMR group. We conclude that the anesthesia technique of immersion in MS-222 is suitable for performing echocardiography and CMR imaging in this species without complications.
Reemergence of the Murine Bacterial Pathogen Chlamydia muridarum in Research Mouse Colonies
Authors: Mishkin Noah , Ricart Arbona Rodolfo J , Carrasco Sebastian E , Lawton Samira , Henderson Kenneth S , Momtsios Panagiota , Sigar Ira M , Ramsey Kyle H , Cheleuitte-Nieves Christopher , Monette Sebastien , Lipman Neil S
Published: July 2022

Chlamydia muridarum (Cm) was detected in 2 colonies of mice with lymphoplasmacytic pulmonary infiltrates by using PCR and immunohistochemistry. This discovery was unexpected, as Cm infection had not been reported in laboratory mice since the 1940s. A Cm specific PCR assay was
developed and testing implemented for the resident colonies of 8 vivaria from 3 academic institutions, 58 incoming mouse shipments from 39 academic institutions, and mice received from 55 commercial breeding colonies (4 vendors). To estimate Cm's global prevalence in research colonies, a database
containing 11,387 metagenomic fecal microbiota samples from 120 institutions and a cohort of 900 diagnostic samples from 96 institutions were examined. Results indicate significant prevalence among academic institutions, with Cm detected in 63% of soiled bedding sentinels from 3 institutions;
33% of incoming mouse shipments from 39 academic institutions; 14% of 120 institutions submitting microbiota samples; and 16% of the diagnostic sample cohort. All samples from commercial breeding colonies were negative. In addition, naïve NOD. Cg-PrkdcscidIl2rgtm1Wjl/SzJ
(NSG) mice exposed to Cm-shedding mice and/or their soiled bedding developed clinical disease at 21 to 28 d after exposure. These mice had a moderate-to-severe histiocytic and neutro- philic bronchointerstitial pneumonia, with their respiratory epithelium demonstrating inclusions, chlamydial
major outer membrane protein immunostaining, and hybridization with a Cm reference sequence (GenBank accession no. U68436). Cm was isolated from lungs, cecum, and feces of a Cm-infected NSG mouse by using HeLa 229 cells. The considerable prevalence of Cm is likely due to widespread global
interinstitutional distribution of unique mouse strains and failure to recognize that some of these mice were from enzootically infected colonies. Given that experimental Cm colonization of mice results in a robust immune response and, on occasion, pathology, natural infection may confound
experimental results. Therefore, Cm should be excluded and eradicated from enzootically infected mouse colonies.
Assessment of the Safety and Efficacy of Pre-emptive Use of Extended-release Buprenorphine for Mouse Laparotomy
Authors: Chan Goldia , Si Catherine , Nichols M Russell , Kennedy Lucy
Published: July 2022

Buprenorphine is commonly used to control postoperative pain in rodents. Short-acting formulations of buprenorphine (bup-HCl) require frequent handling and restraint of animals for appropriate dosing, which can be stressful and confound research outcomes. Ethiqa XR (bup-ER) is an FDA-indexed
extended-release buprenorphine formulation that is an alternative to bup-HCl in mice and rats. In the current study, we first evaluated the pharmacokinetics of bup-ER in male C57BL/6J mice by sampling blood at 10 time points, ranging from 30 min to 72 h after administration (n = 3 mice
per time point). Average plasma concentrations fell below therapeutic levels at 48 h after administration. We also evaluated the safety of bup-ER when administered prior to surgery in combination with common anesthetics and the efficacy of bup-ER in mouse laparotomy. Anesthetic safety was
studied by measuring respiratory rate, rectal temperature, and recovery time in groups of mice (n = 8) given bup-HCl, bup-ER, or saline in combination with isoflurane or ketamine-xylazine anesthesia. No differences were seen between analgesic treatment groups with either of the general
anesthetics. To evaluate efficacy, mice (n = 10) were randomly allocated to receive either bup-ER (3.25 mg/kg) once presurgically, bup-HCl (0.1 mg/kg) presurgically and then every 8 h, or saline once before surgery. Mice underwent a sham laparotomy and were assessed for pain based on
changes in weight, cageside ethogram, nesting consolidation test, rearing frequency, and nociception to von Frey testing at 6, 12, 24, 48, and 72 h after surgery. Cageside ethogram, rearing frequency, and von Frey testing showed significant differences between bup-ER-treated mice and saline
controls in the early postoperative period. No significant effects between treatment groups were seen in daily weights or nesting consolidation scores. This study demonstrates that bup-ER can be safely administered before surgery and provides analgesia for up to 48 h after administration based
on pharmacokinetic and behavioral data.
Editorial
Authors: SOBRE Lab Equipo
Published: July 2022

Presentamos el N4 de la revista SOBRE Prácticas artísticas y políticas de la edición. Con este nuevo número se consolida uno de los objetivos esenciales de este proyecto: estructurar un espacio de re- flexión y experimentación editorial que enriquezca las redes de producción y difusión de las prácticas artísticas y arquitectónicas contemporáneas, en tanto experiencias que implican actos de edición y/o uso de conceptos como la multiplicidad, la serialidad o la secuencialidad de archivos textuales o vi- suales. Esta plataforma editorial académica, contexto en el que se inserta esta revista, está sirviendo a un buen número de investigadores para difundir trabajos cuyo marco de estudio se posiciona dentro de los límites de nuestra línea editorial. Para ello, en la sección Campo se integran los textos deriva- dos de sus investigaciones, una vez sometidos a revisión por pares ciegos. En esta ocasión, el N4 plantea el tema «Arquitectura» como eje vertebrador, observada desde ángulos y focales diversas. Las secciones Panorama, Correspondencias, Pasajes y Estudio están dedicadas a este campo. La sección Panorama plantea en este número un recorrido descendiente, desde las lógicas contextuales de la edición en arquitectura, hasta las particularidades de una obra concreta, como hito desde el que contemplar cambios profundos en la manera de ver y entender el territorio y la ciudad. Toma como punto de partida la incierta y problemática definición de la edición cultural en arquitectura (a la que Paula Álvarez llega desde las nociones de forma, lógica antagonista, exigencia, lugar, ensamblaje y ensayo), para adentrarse, con Ricardo Hernández Soriano, en los efectos que sobre un territorio en particular (en este caso la ciudad de Granada) ejerce la gestión cultural y pro- ducción editorial realizada desde los colegios de arquitectos. Para terminar con el análisis concreto que Amalia Vilaplana hace, desde el contexto de su publicación, de la obra de Eulàlia Grau «Mínimos y máximos», publicada en Arquitectura, revista del Colegio Oficial de Arquitectos de Madrid (COAM). Esta obra expone el interior de seis viviendas situadas en distintas zonas de la ciudad, entendiendo el espacio doméstico como la matriz donde se gesta la realidad urbana. El contexto de la revista de ar- quitectura aparece así como un espacio arquitectóni  o desde el que experimentar con nuevas formas de problematizar la ciudad desde la lógica editorial…
Ser Objeto
Authors: Bestué David
Published: July 2022

En una ocasión realicé una fotografía en la que intenté desdibujar la relación entre un cuerpo y una caja. Como escultor, siempre me ha interesado el límite entre el sujeto y el objeto. El problema del cuerpo es el tiempo, esa desconexión que lleva a lo animado a perder su orden y forma, con una muerte física, literal, que acecha a lo vivo desde fuera y desde dentro…
Editorial
Authors: SOBRELAB Equipo , Martínez Rossi Sandra
Published: July 2022

Mientras estas palabras son escritas como presentación del sexto número de la revista SOBRE. Prácticas artísticas y políticas de la edición, una desgarradora pandemia asola el mundo. Las consecuencias están siendo devastadoras en todos los ámbitos sociales y las previsiones de futuro son muy difíciles de calificar y cuantificar con una escala conocida, pues la situación actual no es comparable con nada que hayamos vivido en un pasado reciente. Una de las repercusiones sociales que más honda influencia está teniendo en los últimos meses es el confinamiento obligado de las personas, una acción fundamental dentro de la estrategia para la contención de los contagios y el control de la enfermedad. Esta situación está dando lugar a la redefinición de los usos y comportamientos sociales, motivada, fundamentalmente, por la imposibilidad física de la relación presencial y por la utilización masiva de la videoconferencia como herramienta de corporeización sincrónica, generando espacios de socialización donde confluyen, de manera explícita, la exhibición pública y el espacio privado…
Analysis of Loyalty of Individual Customers to Increase the Customer Focus of the Cargo Carrier
Authors: Yusupova О. A.
Published: July 2022

The customer focus of cargo carriers plays an extremely important role in the highly competitive market of transport and logistics services, influencing the willingness of companies to be flexible in the pricing policy and other parameters of provision of services when forming a personalised offer to a customer, allbowing to attract a range of new customers, to expand the pool of regular customers based on their brand loyalty. One of the modern tools intended to achieve this goal is the customer loyalty program. The objective of the article is to review and summarise the research and series of recent publications [1–4] by the author and other researchers to substantiate provisions of the customer loyalty program based on analysis and assessment of motives and wishes of customers themselves. To achieve this objective, besides the method of monographic analysis of publications on this topic, the practical part of the research was based on a customer survey. The object of the study was the RZD-Express service for transportation of groupage cargo provided by JSC RZD Logistic company, the subject of the study was the loyalty of private consignors. The task of survey of respondents was to study consumer preferences and motives for choosing such a service, to analyse their willingness to recommend this service to their entourage, the intention to maintain long-term relations with the company, as well as customers’ expectations from interaction with the company. The interpretation of the results of the survey shows the interest of respondents in availability of such a marketing tool as a loyalty program. The study permitted to suggest a system of indicators for the assessment of loyalty program, as well as to put forward proposals for formation of provisions of the loyalty program to improve quality of transport services.
Features of Development of Route Networks of Public Urban Passenger Transport in Russian Monotowns: the Case of the City of Nizhnekamsk
Authors: Myachin V. N. , Akhmetov L. R. , Shulyaev V. V. , Kondrashkin M. G.
Published: July 2022

Currently, improvement of public transport of general use is among priority areas for development of urban transport systems. Convenient public transport routes, combined with modern rolling stock and a developed transport infrastructure, allow solving most transport problems and ensure high mobility of residents and guests of a city. The objective of the research, main results of which are described in the paper, was to build an efficient urban public transport network in monotowns of Russia to ensure sustainability of functioning of public passenger transport intended for general use. The article presents an option for solving the problem of functioning of public transport in single-industry towns. Very often, in such cities (with enterprises pronouncedly influencing urban planning), there are two mutually exclusive transport networks, namely, municipal one and contracted one (contracted by an enterprise and intended for shift rotation). As a result, contracted routes are not optimal, municipal carriers suffer losses, transport companies do not meet the schedule, switch to a less capacious type of vehicles, and consequently people are dissatisfied with the work of public transport in the city. To solve these problems, it is proposed to combine the municipal and contracted networks into a single transport network of the city.
Research on the Nature of Tower Crane Metal Structures Loading
Authors: Sladkova L. A. , Kuznetsov P. A.
Published: July 2022

The analysis of the accident rate of crane structures indicates that the most common cause of accidents with tower cranes is the wind load. The wind load is considered under working and non-working condition. In the working state, the maximum wind load is considered, at which the operation of the crane with the rated load is ensured. In the non-working state, the calculation is carried out using the coefficient accounting for the change in dynamic pressure depending on the height of the location from the ground surface of the given structural element in the non-working and working states of the crane. However, the regulatory documents as a rule do not consider the random nature of the wind load, although the research materials on changes in wind speed (gusts), proposed in the scientific and technical literature, indicate the interval character of their action. The objective of the research was to study the nature of loading of the tower crane structures, which makes it possible to assess the change in the oscillatory process in the element of the crane metal structure exposed to the action of the wind load. The design scheme proposed in the article considers the change in intensity of the wind load along the height of the crane and the random nature of its change, which together lead to the occurrence of longitudinal, torsional, and bending vibrations. Oscillations of the crane metal structure were considered by the authors as oscillations of an oscillator with given parameters of the oscillation amplitude, system masses (boom and tower), and the weight of the load being lifted. The mechanical state of the system (rigidity and elasticity) was considered as well. Theoretical studies of the system under consideration were carried out in two versions:1) as of an elastic-viscous medium; 2) as of a continuous system. The results obtained made it possible to reveal the physical nature of the oscillatory process and to carry out quantitative assessment of the change in the loading of the metal structures of the tower crane. The theoretical studies allowed to obtain expression, which makes it possible to evaluate the change in the oscillatory process in the element of the crane metal structure exposed to the action of the wind load, which has a random nature of loading.
Multi-Criteria Decision-Making Methods in Green Logistics
Authors: Osintsev N. A.
Published: July 2022

Due to the increased demands of the world community in accordance with the goals of the concept of sustainable development, supply chain management requires complex decisionmaking models that consider many environmental, economic, and social constraints when implementing various environmentally friendly, green methods and technologies. An effective tool in such conditions is the use of MCDM, multi-criteria decision-making methods. The objective of the research, the results of which are provided in the article, is to analyse the application of MCDM in green logistics and management of green supply chains. The work used a set of methods including system and structural-functional analysis, methods of the theory of fuzzy sets, mathematical statistics, and expert assessments. A general scheme of MCDM implementation is offered and a combined MCDM model is developed for assessing decisions on the choice of green technologies, including a system of indicators for logistics flows, a model for managing logistics flows and a system of tools for green logistics. In the MCDM model, a fuzzy analytical hierarchical process (fuzzy AHP) is used to establish the weight of indicators of logistics flows, eleven MCDM methods are used to rank green logistics tools: SAW, TOPSIS, PROMETHEE, COPRAS, ARAS, WASPAS, MAIRCA, EDAS, MABAC, CODAS, MARCOS. Comparison of the use of various MCDM methods showed a high convergence of the ranking results (Spearman’s rank correlation coefficient is of 0.949). The most consistent are SAW, MARCOS and WASPAS methods, the least consistent are CODAS methods. The results of the design example showed that the most preferable solution is the «use of intermodal technologies and multimodal transportation» (ranked first within all eleven methods), the least preferable solution is the «use of environmentally friendly fuels and lubricants (fuels)» (ranked 12th within 10 methods of 11).
Selected Abstracts of D.Sc. and Ph.D. Theses Submitted at Russian Transport Universities
Authors: Editorial Article
Published: July 2022

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New Books on Transport and Transportation
Authors: Editorial Article
Published: July 2022

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Methods of Analysis and Synthesis of Switching Circuits of Photonic Switches Using the Example of Spanke Architecture
Authors: Kazansky N. A. , Lysyuk P. I.
Published: July 2022

The development of high-speed rail requires introduction of new telecommunications technology implemented in an integrated digital technological communication system (IDTC). Features of building such systems comprise provision of switching optical data channels using photonic switches (PS). Switching processes in PS occur at the photon (optical) level. A feature of construction of PS is the use of multi-tier topologies, performed using binary switches (BSs). BS is the simplest switching element with the number of input/output ports equal to one or two. The concepts for constructing PS are based on the technology of the well-known switching circuits using BS whose architecture and topology are assigned the names of their creators (Benes, Spanke, Spanke–Benes architecture, Clos network, etc. With an increase in PS capacity, its structure becomes more complicated: the number of links in the switching circuit, the total number of BSs, the length of switching routes, and the redundancy factor increase. In addition, it becomes necessary to calculate the probabilities of the occurrence of internal blocking in switching circuits, speed of switching optical signals, the value of attenuation of the optical signal in PS circuit, etc. The objective of the study was to develop methods of analysis and synthesis of switching circuits of photonic switches using the example of a circuit of Spanke architecture of a given capacity with calculation of the probabilities of occurrence of internal blocking. The authors used general scientific and engineering methods of mathematical modelling, probability and queuing theory and an example of an algorithm for analysing the structures of Spanke topology with capacities from 4×4 to 128×128. Their topological and probabilistic characteristics (the number of links in the switching circuit, the total number of BS, the length of the switching routes, the probability of occurrence of internal blocking in PS circuits) have been determined. The results of calsulations are presented in the form of tables. The developed methods of analysis and synthesis can be used in the study of similar switching circuits built using BS.
Innovative, Scientific and Technological Priorities of Railway Freight Transport
Authors: Tulupov A. V. , Beloshitsky A. V. , Shitov E. A. , Shitova A.
Published: July 2022

Seven main priorities for development of rail cargo transportation are emerging in the context of an active intensification of scientific and technological development cycles, widespread digitalisation of business processes and an increase in competition in the transport industry. A key element of increasing the attractiveness of rail cargo transportation is its innovative, scientific, and technological development, especially in terms of increasing customer focus. Today, the principles of customer focus in the field of railway transportation of goods are among core factors in competitiveness of railway carriers. This issue is particularly relevant for the Russian Federation that owns a high potential for development of transit routes thanks to its advantageous geographic location. This fact determines attractiveness of railway transportation for cargo haulage customers. The image of future scientific and technological development of railway cargo traffic is formed under the influence of such trends as development of heavy-haul rail traffic, international container transportation, proactive introduction of digital technologies for interacting with customers and monitoring the condition of rolling stock, the provision of services within a single transport and information space, increase in margins and environmental safety of transportation. Digital transformation of the transportation process is among high priorities, which is explained through the importance of maintaining safety of transportation, increasing the transit capacity of the railway network and development of an integrated system for ensuring openness of data to provide customers with all the necessary information. Another priority area serves to increase the economic efficiency of cargo traffic by achieving growth in the share of high-margin goods. Such goods may include pharmaceutical and perishable products, information and communication, electronic and radio-electronic products, etc. An increase in the share of such transportation with a decrease in the volume of coal/oil transportation also has a positive effect on external appearance of the railway company for external investors. The image of the future of rail cargo transportation is largely dependent on various external and internal factors having effect on the industry. Besides, it depends on the emerging macro-trends in the global economy, which determine a certain vector for development of the railway industry. The study, to achieve its purposes, has widely used qualitative research methods and bibliometric analysis of scientific literature, international strategic and program documents of the industry and its companies.
Main Factors Affecting the Multimodal Transport System
Authors: Ponomarev M. L. , Fillipova N. A. , Velikanov A. Yu. , Neretin A. A.
Published: July 2022

Optimisation of organisation of transportation technological process, in the context of digitalisation and technological progress, is currently an urgent task following its significant impact on efficiency and competitiveness of transportation business. Currently, development of the economic environment requires a significant restructuring of organisational aspect of activity of the transport industry. An efficient transport and logistics process allows us to reduce time associated with cargo handling, cargo delivery, paperwork, etc. Automated storage systems can be mounted at facilities of different area, from largest warehouses of enterprises to compact storage premises. Favourable conditions created so allow to increase attractiveness of the transport industry. Though, the full implementation of information technology requires a systematic and scientific approach to organisation of transportation. Given the trend towards growth in international container transportation, expansion of global distribution networks, as well as development of scheduled transportation systems and the length of routes, which is particularly relevant for Russia, the issue of tracking positioning and controlling over the current state of the cargo becomes an important condition for improving safety and quality of transportation. The objective of the study was to develop a systematic approach to organisation of transportation technological processes for a multimodal transport system based on information technologies. Based on the study of organisation, engineering, technological, infrastructure factors, including those related to transition to electronic document exchange and electronic cargo positioning tracking, the paper offers a basic systematisation of more promising factors. The introduction and use of innovative and effective methods of organising cargo transportation will reduce time required to process cargo transported in a container, and to promptly pass the container through control and supervisory procedures.
Scheduling of Vehicle Fleet of Oil Products in Intercity Traffic
Authors: Trofimova L. S. , Trofimov B. S. , Yankevich N. V.
Published: July 2022

The objective of the study is to develop a practically applied methodology and a mathematical model that considers the requirements for transportation of dangerous goods, the technical condition of rolling stock, modes of work and rest of drivers on the routes of intercity transportation, customers’ requirements, and the interests of the trucking company. The functioning of motor pool while transporting dangerous goods is presented as the relationship between transportation of goods and performance of technical maintenance. A proposed approach to planning takes into account the correspondence of the effective number of technical maintenances to the standard required value for a certain period for vehicle fleet carrying out transportation of oil products; compliance of rolling stock output with the volume of oil products that might be delivered and unloaded in the current month; compliance of time of movement of drivers to a specialised resting place on the intercity route with time established for the modes of work and rest. The mathematical model makes it possible to determine output of the motor pool in each month, considering that transportation of oil products, started last month, ends only in the current one. The mathematical model of operating the vehicle fleet during transportation of oil products includes assumptions related to fulfilment of the requirements for motor pool and the driver, which are specified in the Agreement concerning the International Carriage of Dangerous Goods by Road, Decision of the Customs Union Commission dated 09.12.2011 No. 877 (revised on 21.06.2019). Special attention was paid to planning of vehicle operations when volumes of oil products transported are growing during the construction and renewal of roads. The algorithm of the methodology was used to plan operation of motor pool when transporting BND 90/130 bitumen from the city of Omsk in intercity traffic and was the basis for making management decisions on the implementation of the suggested indicators in a motor transport enterprise practice.
Implementasi Model CORE (Connecting, Organizing, Reflecting, Extending) untuk Meningkatkan Aktivitas Siswa SMP Selama Pembelajaran Tatap Muka (PTM) Terbatas
Authors: Utomo Edy Setiyo , Rahman Fatchiyah
Published: July 2022

Penelitian ini bertujuan untuk meningkatkan aktivitas peserta didik melalui implementasi model CORE dalam pembelajaran matematika selama pertemuan tatap muka terbatas. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan pada peserta didik kelas VIII di SMPN 1 Jombang yang berjumlah 16 peserta didik. Penelitian ini terdiri dari 2 siklus, dimana setiap siklus melihat aktivitas kelompok maupun individu. Hasil penelitian menunjukkan bahwa aktivitas peserta didik secara kelompok pada siklus 1 aktivitas kelompok skor rata-rata sebesar 24,5 dengan kategori cukup aktif dan pada siklus 2 sebesar 36,1 dengan kategori sangat aktif. Hal ini menunjukkan bahwa aktivitas peserta didik dalam kelompok mengalami peningkatan sebesar 11,6 poin. Sedangkan aktivitas peserta didik secara individu menunjukkan bahwa secara keseluruhan mengalami peningkatan. Adapun peningkatan paling signifikan ditunjukkan aktivitas kreatif sebesar 18,9 poin dari siklus 1 ke siklus 2. Di samping itu, hasil analisis respon peserta didik mengenai implementasi model CORE dapat dikatakan baik, karena lebih dari 50% peserta didik memberikan respon positif. Oleh karena itu, diharapkan guru matematika dapat mengimplementasi model CORE pada materi yang lain guna meningkatkan aktivitas peserta didik secara maksimal dan komprehensif.
Pengembangan Bahan Ajar Berbasis Aplikasi Desmos pada Materi Program Linear
Authors: Meslita Rima
Published: July 2022

Beberapa siswa percaya bahwa matematika itu sulit dan penyelesaiannya berbelit-belit. Oleh karena itu, peneliti membuat bahan ajar pemrograman linier berbasis aplikasi Desmos. Ini adalah proyek penelitian pengembangan yang mengikuti paradigma ADDIE, yang memiliki lima tahap: analisis, desain, pengembangan, implementasi, dan evaluasi. Sementara itu, pengumpulan data dilakukan melalui wawancara, angket, dan pra & pasca tes. Para ahli menyatakan barang yang dihasilkan valid berdasarkan temuan penelitian, dengan ahli materi mengklaim 76 persen kategori valid, ahli bahasa mengklaim 72 persen kategori valid, dan ahli media mengklaim 80 persen kategori valid. Menurut penilaian guru, tes kepraktisan produk mengungkapkan bahwa 90 persen kategori sangat praktis, dan 88 persen siswa berada pada kategori sangat praktis. Sementara itu, untuk efektifitas produk dilakukan uji-t dengan perolehan thitung 4,951 and ttabel 2,048 yang bermakna thiutng  ttabel dengan kesimpulan bahwa penggunaan produk (post-test) menunjukkan hasil belajar yang lebih baik (pre-test).
Menumbuhkan Jiwa Kewirausahaan Melalui Pembelajaran Matematika Materi Aritmatika Sosial Berorientasi Higher Order Thinking Skills (HOTS)
Authors: Turmuzi Muhammad , Sudiarta I Gusti Putu , Sutajaya I Made
Published: July 2022

Tujuan penelitian ini adalah untuk menumbuhkan  jiwa kewirausahaan melalui pembelajaran matematika materi aritmatika sosial berorientasi Higher Order Thingking Skills (HOTS). Pembahasan difokuskan pada kewirausahaan dan pembelajaran aritmatika sosial berorientasi HOTS. Salah satu inovasi dalam strategi proses pembelajaran matematika adalah pembelajaran materi aritmatika sosial berbasis wirausaha. Penanaman jiwa kewirusahaan pada diri siswa perlu diajarkan sejak dini. Dengan adanya penanaman jiwa kewirausahaan sejak dini mulai dari tingkat pendidikan dasar sampai ke perguruan tinggi maka akan menciptakan output yang berkualitas di bidang ilmu pengetahuan dan mampu menciptakan kemandirian bagi siswa sesuai dengan indikator wirausaha. Metode penelitian ini berupa Kajian Kepustakaan (Library Research). Studi kepustakaan mempelajari beberbagai buku referensi serta hasil penelitian sebelumnya yang sejenis yang berguna untuk mendapatkan landasan teori mengenai masalah yang akan diteliti. Teknik pengumpulan data dengan melakukan penelaahan terhadap buku, literatur, catatan, serta berbagai laporan yang berkaitan dengan masalah yang ingin dipecahkan. Kesimpulan penelitian ini adalah untuk menumbuhkan jiwa kewirausahaan pada diri siswa maka dalam diri siswa harus memiliki kemampuan mengarahkan diri, percaya diri, berorientasi pada tindakan, energik dan toleran terhadap ketidakpastian.
Open-Ended Problems Improve High-Level Thinking Skills of Vocational High School Students with CPS Learning
Authors: Faroh Arina Ulil , Suyitno Amin , Zaenuri Zaenuri
Published: July 2022

Higher Order Thinking Skills (HOTS) are abilities that consist of analyzing, discovering, and creating. HOTS is an ability that students must have to solve various problems. However, not all students have high HOTS, so efforts are needed to increase students' HOTS. The purpose of this article is to determine the effect of open problems on increasing students' HOTS in trigonometry material. The subjects of this research were 26 students of class X SMK. The research method used is a mixed method, which combines qualitative and quantitative methods. The research instrument used is the test results, the test used has been tested for validity. Quantitative data analysis used paired t-test, while qualitative data analysis used data reduction, data presentation, data interpretation, and drawing conclusions/leverages. after learning by applying the Creative Problem-Solving (CPS) model, students work on questions in the form of open problems. The results obtained are: (1) there is a significant increase in the value indicated by the value of Sig. 0.00 < 0.05 it also shows that the provision of open-ended problems during CPS learning able to increase students' HOTS. (2) students with high HOTS can apply the HOTS cognitive domain well, while students with moderate and low HOTS have difficulty applying the HOTS cognitive domain. the provision of open problems and appropriate learning models can increase students' HOTS.
Pengembangan Media Pembelajaran Berbasis Website Menggunakan Pendekatan Problem-Solving pada Materi SPLTV Kelas X
Authors: Amin Syahur , Sari Dwi Ivayana , Liesdiani Mety
Published: July 2022

Pemecahan masalah merupakan tujuan pembelajaran matematika. Pendekatan problem-solving adalah pendekatan yang dapat mengembangkan kemampuan pemecahan masalah. Namun, di masa pandemi atau new normal, kemampuan pemecahan masalah siswa belum maksimal dikembangkan. Media pembelajaran berbasis web menggunakan pendekatan problem-solving adalah solusi dalam masalah ini. Tujuan penelitian ini adalah menghasilkan media web menggunakan pendekatan problem-solving yang valid, praktis dan efektif. Penelitian ini merupakan penelitian pengembangan dengan menggunakan langkah-langkah ADDIE. uji kevalidan dilakukan dengan uji validasi media dan materi, uji kepraktisan dilakukan dengan memberikan angket respon kepada guru dan siswa dan uji keefektifan dilakukan dengan pengamatan kemampuan guru mengelola pembelajaran, aktivitas siswa dan ketuntasan belajar siswa secara klasikal. Penelitian ini menghasilkan media web menggunakan pendekatan problem-solving yang valid, praktis dan efektif. Dikatakan valid karena berdasarkan hasil analisis media diperoleh skor rata-rata 3,58 dan hasil analisis materi diperoleh skor rata-rata 3,62. Ini menunjukkan bahwa media web layak digunakan. Dikatakan praktis karena persentase respon guru sebesar 86,7% dan persentase respon siswa sebesar 80,8%. Dikatakan efektif karena kemampuan guru dalam mengelola pembelajaran dan aktivitas siswa pada pembelajaran 1 berapa pada kategori baik dan pada pembelajaran 2 berada pada kategori sangat baik, serta ketuntasan belajar siswa secara klasikal tercapai.
Kemampuan Komunıkasi Matematıs Tulis Pada Materi Bentuk Aljabar Ditinjau dari Self-Effıcacy Peserta Didik
Authors: Zahrowiyah Siti , Faradiba Surya Sari , Alifiani Alifiani
Published: July 2022

Penelitian ini bertujuan untuk mengeksplorasi kemampuan komunikasi matematis tulis pada materi bentuk aljabar ditinjau dari self-efficacy. Penelitian ini melibatkan 22 peserta didik kelas VII A di SMPI Annuriyah, 18 peserta didik dinyatakan memiliki kemampuan komunikasi matematis tulis rendah. Hal ini dapat dilihat dari hasil tugas peserta didik pada saat menyelesaikan masalah matematika yang memuat banyak kesalahan, baik secara konseptual maupun prosedural. Untuk mendalami fenomena tersebut, dalam penelitian ini, peneliti memilih 3 peserta didik sebagai subjek penelitian. Penelitian ini merupakan penelitian kualitatif. Instrumen yang digunakan terdiri dari angket self-efficacy, masalah terkait bentuk aljabar dan pedoman wawancara yang disusun berdasarkan indikator komunikasi matematis tulis. Komunikasi matematis tulis ada dua lisan dan tulisan. Komunikasi matematis tulis adalah penyampaian ide matematika berupa tulisan. Penelitian ini dilaksanakan di SMPI Annuriyah pada semester genap 2021/2022. Hasil penelitian menunjukkan bahwa peserta didik dengan self-efficacy tinggi memiliki kemampuan komunikasi matematis tulis sangat baik karena mampu memuat seluruh indikator komunikasi matematis tulis secara maksimal. Peserta didik dengan self-efficacy sedang memiliki kemampuan komunikasi matematis tulis cukup baik karena mampu memuat seluruh indikator komunikasi matematis tulis cukup maksimal dengan hasil akhir kurang tepat. Selanjutnya, peserta didik dengan self-efficacy rendah memiliki kemampuan komunikasi matematis tulis kurang baik karena kurang maksimal dalam memenuhi indikatornya. Peserta didik hanya mampu memenuhi 3 dari 4 indikator komunikasi matematis tulis, serta tidak mampu memahami prosedur penyelesaian dengan benar.
Pengembangan Media Pembelajaran Matematika Berbantuan Macromedia Flash Menggunakan Pendekatan Realistik untuk Meningkatkan Kemampuan Visual Thinking dan Motivasi Belajar Siswa
Authors: Atika Endah Dwi , Mariani Mariani , Mulyono Mulyono
Published: July 2022

Tujuan penelitian ini adalah: 1) Menganalisis kevalidan, kepraktisan, dan keefektifan media pembelajaran yang dikembangkan dengan macromedia flash menggunakan pendekatan realistik pada pembelajaran matematika; 2) Menganalisis peningkatan kemampuan visual thinking siswa kelas VIII SMP Negeri 30 Medan dengan menggunakan media pembelajaran berbantuan macromedia flash yang dikembangkan menggunakan pendekatan realistik; 3) Menganalisis peningkatan motivasi belajar siswa kelas VIII SMP Negeri 30 Medan dengan menggunakan media pembelajaran berbantuan macromedia flash yang dikembangkan menggunakan pendekatan realistik. Penelitian ini termasuk dalam penelitian pengembangan (development research). Penelitian ini menggunakan model pengembangan 4-D. Penelitian ini dilaksanakan di SMP Negeri 30 Medan yang berlokasi di Jalan Bunga Raya Asam Kumbang Medan 20133 pada siswa kelas VIII semester II Tahun Pelajaran 2021/2022. Hasil penelitian menunjukkan bahwa : 1) Media pembelajaran berbantuan macromedia flash yang dikembangkan memenuhi kriteria kevalidan, kepraktisan dan keefektifan; 2) Peningkatan kemampuan visual thinking siswa menggunakan media pembelajaran berbantuan macromedia flash yang dikembangkan pada materi kubus dan balok dilihat dari indeks gain ternormalisasi; 3) Peningkatan motivasi belajar matematika siswa menggunakan media pembelajaran berbantuan macromedia flash yang dikembangkan pada materi kubus dan balok dilihat dari meningkatnya nilai rata-rata hasil motivasi belajar siswa dari uji coba I ke uji coba II