bluuebunny/crossref_metadata_2025 huggingface dataset:
Expresiones locales de la sindemia COVID-19: estrategias de los trabajadores de salud en Argentina
Authors: Remorini Carolina , Teves Laura , Pasarin Lorena , Castro Mora
Published: July 2022

Las estrategias de los trabajadores de salud (TS) frente a la pandemia de COVID-19 expuso la necesidad de acciones precisas y datos confiables sobre sus múltiples dimensiones en los contextos locales. Este artículo tiene como objetivo presentar un estudio de caso ubicado en la zona sur del Área Metropolitana de la Provincia de Buenos Aires (Argentina) en donde se analizan la implementación de respuestas e impacto en el trabajo cotidiano en los servicios de salud. La metodología se encuadra en la etnografía aplicada. Se recolectó información cualitativa en dos efectores de salud pública de la ciudad de La Plata, la que fue contrastada y complementada con información epidemiológica. Los resultados aportan a la comprensión del manejo local frente a la sindemia, incluyendo las estrategias de preparación y reorganización de los servicios de salud y nuevos mecanismos de colaboración e introducción de innovaciones en la atención pública. Entre las principales conclusiones se destacan la necesidad de enmarcar el análisis de la COVID-19 en el concepto de sindemia, que considera las diversas dimensiones socio-sanitarias implicadas, e indaga sus efectos en poblaciones vulnerables, los que aún son escasamente conocidos. Asimismo, este estudio muestra cómo las experiencias y estrategias organizativas de TS suponen la articulación y adaptación creativa de las políticas públicas sanitarias a las posibilidades y limitaciones de los contextos de actuación local frente a la incertidumbre y el riesgo epidemiológico. Finalmente, la metodología cualitativa aporta datos de valor para comprender la dinámica de cambio durante la pandemia y su proyección hacia la post pandemia.
“Quedarse madre”. Maternidad y duelo en el proceso de salud-enfermedad-cuidado
Authors: Martínez-Pérez Ana M.
Published: July 2022

Objetivos. El proceso de salud-enfermedad-cuidados dota de sentido nuestra manera de estar en el mundo en la relación personal con el cuerpo que somos y en la interacción con unos “otros” con los que convivimos en interdependencia. En no pocas ocasiones, este proceso tiene la particularidad de verse atravesado por la situación crítica derivada de una enfermedad o accidente con o sin resultado de muerte. En la tensión entre el nacimiento y la muerte, algunas madres tienen que volver a definirse tras el duelo por la pérdida de un hijo. Metodología. Con una metodología mixta entre el método biográfico, la etnografía y la medicina narrativa construimos un modelo integrado por defecto en el que cada informante es a su vez un sujeto que toma las riendas de su propia vida y un profesional que aprende a atender a otras personas titulares de derechos elementales como salud, educación o justicia. Resultados. A partir de relatos de salud-enfermedad-cuidado podemos afianzar aprendizajes para después de la pandemia. En este proceso, los aspectos de salud mental al elaborar autopsias psicológicas, sirven para desentrañar el dolor de las “madres que se quedan madres”. Conclusiones. Los relatos biográficos obtenidos constituyen una herramienta validada en los talleres de promoción de salud al tiempo que sirven como un material etnográfico valioso como estudios de caso para el empoderamiento en salud después del coronavirus y para diferentes procesos de duelo.
Medicalización y uso de analgésicos, según estudiantes de la Facultad de Medicina. Un estudio realizado en la Pontificia Universidad Católica del Ecuador
Authors: Galárraga A. Sofía , Hidalgo S. Alisson , Rivas T. Alexis
Published: July 2022

La medicalización es entendida como un proceso que forma parte de la vida cotidiana y del sistema de salud biomédico. Los estudiantes de medicina al formarse para ser elemento del sistema de salud tienen mayor facilidad para practicar la medicalización, esto inicia en su formación y a su vez engloba su entorno social. La medicalización es un tema poco estudiado en la sociedad. El objetivo de este artículo es describir los conocimientos, actitudes y prácticas de medicalización en torno al uso, acceso y control de analgésicos en estudiantes de la Facultad de Medicina de PUCE Quito, 2020. A partir de datos cualitativos y cuantitativos se realizó una triangulación: de los 788 estudiantes investigados, el 53% conoce sobre medicalización y el 66,83% lo asocian con fármacos. Sin embargo, mediante entrevistas se observó que solo 3 de cada 10 alumnos conocen sobre el tema. El 92,13% de la población estudiantil se automedica, la causa principal es el dolor. La automedicación es una práctica común e inicia por influencia familiar y hace referencia a un sentido cultural. Los analgésicos son utilizados de manera cotidiana por los estudiantes; el m s usado es paracetamol (52,92%) seguido por ibuprofeno (33.25%) al menos una vez a la semana. La razón de su uso reside al fácil acceso y al bajo costo económico. Tienen acceso a los analgésicos mediante la compra en una farmacia (60,78%) y los almacenan en botiquines en el hogar (32,86%), cuyo control está cargo de algún familiar o nadie se responsabiliza sobre los analgésicos.
Nihil nocere vs. obediencia sumisa: Casuística en ética profesional de médicos y psicólogos en América del Sur
Authors: Riquelme U. Horacio
Published: July 2022

La praxis de médicos y psicólogos durante los gobiernos cívico-militares en Argentina, Chile y Uruguay, temporalmente paralelos en la segunda mitad del siglo XX, muestra fuertes similitudes, y su estudio nos confronta a momentos de crisis en ética profesional. En los tres países, una dilatada guerra psicológica contra opositores creo un clima de intimidación, miedo y opresión y situó́ la actividad profesional en situaciones de conflicto con los derechos humanos y la ética. La conducta adoptada por tales profesionales fue variada: algunos miembros de estas disciplinas pusieron sus conocimientos a disposición del sistema coercitivo; otros mantuvieron una actitud ética en su gestión diaria y/o hicieron público el maltrato a los derechos humanos. Basado en investigaciones de campo y documentales, este ensayo analiza una casuística de tales circunstancias y muestra en situaciones ejemplares cómo se dañó sistemáticamente la noción de ética profesional, así́ como qué acciones se tomaron para su defensa y restitución.
Exploring Travel Experience Design through Lokalii: how can a Travel App Create Memorable Experiences?
Authors: Helgetveit Ida-Marie
Published: July 2022

The demand for local experiences is increasing. Travel trends focus on the discovery of the ‘unique’, and travellers want to locate the experiences that make a trip memorable. With smartphones, locating information requires little effort. This paper seeks to explore the theory of experience design in tourism through an app for local experiences, Lokalii. Different aspects of both the theory and the app are put forward, to see how a travel app can help create memorable experiences. This paper aims at getting to know travelers’ needs and wishes when travelling.
PERANCANGAN SISTEM INFORMASI PEMASARAN PERUMAHAN PADA PT. GRIYA PRABU INDAH PRIMA DENGAN MENGADOPSI METODE SIMPLE INTERACTION
Authors: Yuntari Purbasari  , Pelli Ariska
Published: July 2022

PT. Griya Prabu Indah Prima merupakan pengembang perumahan yang bergerak dibidang properti yaitu penjualan rumah subsidi. Sistem penjualannya dilakukan secara kredit melalui Bank atau kredit pada developer. Pembayaran kredit developer langsung pada kantor pemasaran. Data penjualan dan pembayaran rumah diolah oleh bagian administrasi yang masih menggunakan Microsoft Office Excel dan buku administrasi. Sehingga perlu dibangun sebuah rancangan sistem pemasaran perumahan untuk mempermudah calon konsumen mengetahui informasi tentang perumahan yang lebih akurat  yang berbasis pemograman PHP dan basis data MySQL dengan alat bantu perancangan menggunakan UML (Unified Modelling Language). Adapun metode pengembangan sistem yang digunakan adalah metode simple interaction Dengan adanya sistem pemasaran perumahan berbasis pemograman aplikasi ini dapat memberikan kemudahan dan mendukung kegiatan pemasaran perusahaan.
RANCANG BANGUN APLIKASI BERBASIS ANDROID DENGAN METODE ECONOMIC ORDER QUANTITY PADA PT. YAKIN SEJAHTERA MANDIRI MUARA ENIM
Authors: Panglipur Phinton , Ayu Pratiwi
Published: July 2022

PT. Yakin Sejahtera Mandiri Muara Enim merupakan perusahaan yang bergerak di bidang penjualan bibit dan benih tanaman yang terletak di jalan SMB II Kelurahan Pasar II Muara Enim. Untuk pencapaian hasil yang maksimal, maka deperlukan adanya suatu perubahan dalam pengendalian stok barang agar dalam pengelolaannya lebih optimal dan efisien. Oleh karena itu  PT. Yakin Sejahtera Mandiri  membutuhkan suatu mekanisme dalam mengendalikan persediaan stok barang untuk pengendalian jumlah stok agar tidak terjadinya kehabisan stok barang yang  habis tanpa diduga dan menghindari kelebihan stok barang agar tidak menumpuk digudang.  Dengan alasan diatas maka penulis mencoba untuk memberikan alternative pemecahan masalah dengan membuat aplikasi berbasis android dengan metode economic order quantity pada PT. Yakin Sejahtera Mandiri. Dengan adanya aplikasi ini diharapkan dapat menghitung berapa jumlah pemesanan ekonomis, safety stock, reorder point, dan frekuensi pembelian. Pada penulisan ini juga akan diterangkan tahapan pengerjaan, mulai dari proses analisa, desain, pengodean, pengujian menggunakan Adobe Flash CS6.
APLIKASI ALAT BANTU BELAJAR BAHASA INGGRIS UNTUK SEKOLAH DASAR
Authors: Nur Aini H  , Hepnyi Samosir
Published: July 2022

Aplikasi alat bantu belajar merupakan komponen sistem penyampaian pengajaran yang dapat digunakan dalam mendukung dalam kegiatan pembelajaran, baik digunakan guru ataupun siswa-siswi. Dalam media pembelajaran Bahasa Inggris anak-anak Sekolah Dasar (SD) kurang menarik minat siswa-siswi dalam melakukan pembelajaran Bahasa Inggris, berdasarkan hal tersebut maka penulis tertarik untuk meningkatkan mutu pendidikan, khususnya mata pelajaran  Bahasa Inggris yang baik terutama  bagi siswa-siswi yang  usia dini yaitu dengan membangun aplikasi belajar Bahasa Inggris untuk Sekolah Dasar.
Citra Merek Dan Harga Dalam Mempengaruhi Keputusan Pembelian Sepatu Ventela Di Magelang
Authors: Galuh Tiyasherlinda  , Andhatu Achsa  , Yacobo P. Sijabat
Published: July 2022

Semakin pesatnya perkembangan industri alas kaki di Indonesia mengakibatkan persaingan antar produsen alas kaki menjadi semakin ketat baik produksi alas kaki lokal maupun luar negeri. Sehingga produsen sepatu harus mampu melakukan inovasi untuk bersaing dengan produsen sejenis. Maksud dari penelitian ini yaitu untuk mengetahui pengaruh variabel citra merek dan harga terhadap keputusan pembelian sepatu Ventela di Magelang. Penelitian ini menggunakan data primer dan sekunder. Data primer yang digunakan berupa hasil kuesioner dan wawancara, sedangkan data sekunder yang digunakan berupa studi literatur. Sampel penelitian berjumlah 100 sampel dengan teknik sampel purposive sampling. Data yang diperoleh dianalisis menggunakan metode regresi linear berganda dengan bantuan software IBM SPSS versi 25. Hasil penelitian menunjukkan bahwa variabel citra merek berpengaruh positif dan signifikan terhadap keputusan pembelian, sedangkan variabel harga tidak berpengaruh signifikan terhadap keputusan pembelian.
HUBUNGAN KECEMASAN DENGAN KELULUSAN OSCE PADA MAHASISWA S1 KEPERAWATAN SEMESTER IV STIKES TANA TORAJA TAHUN 2020
Authors: Toban Celia M , Almar Junelty , K.T Rande
Published: July 2022

Kecemasan merupakan salah satu gangguan mental emosional berupa kekhawatiran atau ketakutan yang objeknya atau sumbernya tidak jelas dan tidak diketahui terhadap ancaman yang akan datang.

Tujuan Penelitian ini adalah untuk mengetahui hubungan kecemasan dengan kelulusan OSCE pada mahasiswa S1 keperawatan semester IV STIKES Tana Toraja.

Jenis penelitian ini adalah survey analitik dengan pendekatan Cross Sectional. Populasi dalam penelitian ini adalah semua mahasiswa S1 keperawatan semester IV . Jumlah responden  sebanyak 46 dengan menggunakan teknik purposif sampling. Metode  pengumpulan data adalah kuesoiner dengan Skala Likert dan observasi.

Hasil Penelitian ini menunjukkan responden tidak cemas dengan OSCE sebanyak 38 orang (82,6%) dan cemas sebanyak 8 orang (17,4%), dan lulus ujian OSCE sebanyak 41 orang (89,1%) dan tidak lulus sebanyak 5 orang (10,9%). Analisa data bivariat dilakukan dengan uji statisti chi square (            Fisher,s Exact Test) didapatkan hasil yang signifikan antara hubungan kecemasan dengan kelulusan OSCE pada mahasiswa dengan nilai p=0,031

Kesimpulan dalam penelitian ini adalah ada hubungan kecemasan dengan kelulusan OSCE pada mahasiswa S1 keperawatan semester IV STIKES Tana Toraja. Dengan penelitian ini diharapkan bagi semua mahasiswa agar mempunyai kesadaran dalam diri  masing-masing akan pentingnya melakukan praktik mandiri di laboratorium.
Retrospective Analysis of 53 Cases who Developed Colon Fistula
Authors: ENGİN Ömer , DURSUN Ayberk , TURGUT Emre
Published: July 2022

Objective:
Colon cancer is among the most common cancers in men and women. Separation of anastomosis after resection is undesirable. There are various risk factors affecting the development of anastomotic leakage.
Methods:
Fifty-three cases of colon anastomotic leakage were included in the study retrospectively. Demographic characteristics and co-morbidities in these patients were evaluated retrospectively and risk factors were compared with the literature.
Results:
Additional disease was detected in thirty of fifty-three cases. The most common co-morbidities are diabetes mellitus (DM) and hypertension (HT), while less frequent chronic diseases such as chronic obstructive pulmonary disease (COPD) have been detected. Mortality rate is 11% in patients who develop fistula, and DM and HT usually coexist in mortal cases.
Conclusion:
Inadequate alveolar ventilation and consequently hypoxia and hypercapnia have negative effects on tissue repair processes in patients with COPD. Changes in the microcirculation and the patient's greater susceptibility to diabetes mellitus (DM)-related infection are risk factors for the development of postoperative fistula. If obesity is present together with DM, the risk of anastomotic leakage may be even higher. Preoperative diastolic pressure is another factor that increases the risk of anastomotic leakage. In conclusion, hypertension, obesity, diabetes, COPD are effective risk factors for anastomotic leakage after colorectal surgery. These risk factors are effective in increased morbidity and mortality.
Keywords: colon, cancer, anastomosis, leakage, fistula
Multiple Myeloma; Experience of a Center
Authors: DEMİRCAN Vehbi , YİĞİT Ercan , KARAKUŞ Abdullah , AYYILDIZ Orhan
Published: July 2022

Objective: Demographic characteristics, laboratory parameters, applied treatments, and treatment responses of patients diagnosed with multiple myeloma (MM) at the time of diagnosis vary between communities. We aimed to investigate this data of Multiple Myeloma patients and compare it with literature data.
Material Method: In this study, we retrospectively examined data of 272 patients diagnosed with MM between January 1st, 2010, and January 31st, 2019 in Dicle University Faculty of Medicine Internal Medicine Hematology Clinic. At the time of diagnosis, general characteristics, laboratory values, treatment options, treatment responses, mean and median survival times, and causes of mortality of the participated patients in the study were investigated.
Results: We found that 124 (45.6%) patients had IgG, 50 patients had (18.4%) ıgA, 59 patients had (21.7%) light chain, 21 patients had (7.7%) plasmacytoma, four patients had (1.5%) ıgM, three patients had (1.1%) plasma cell leukemia, and 11 patients had (4%) non-secretory myeloma. 77 patients underwent autologous hematopoietic stem cell transplantation (AHSCT). The average life expectancy in patients with AHSCTwas 68 months, while in patients without AHSCT, this period was determined as 42 months (p<0.001).
Conclusion: We see that treatment response rates and average survival times increase with the introduction of new agents.
Identitätsbegriff und Identitätspolitik
Authors: Arndt Andreas
Published: July 2022

„Identität“ ist zu einer politischen Kategorie geworden. In identitätspolitischen Konzepten geht es um die Definitionsmacht über Identitäten und ihre Durchsetzung im gesamtgesellschaftlichen bzw. globalen Kontext. Der Beitrag fragt zunächst danach, was Identität im Rahmen identitätspolitischer Konzeptionen eigentlich bedeutet, geht dann auf die damit eng verbundene Problematik der Diversität, der Vielfalt von Identitäten, ein, um schliesslich zu fragen, wie sich die Einheit diverser Identitäten denken liesse und was dies für den Identitätsbegriff der Identitätspolitik selbst bedeutet.
Nietzsche’s Concept of the Affirmation of Life
Authors: Salkić Nermin
Published: July 2022

In this work, I analyze Nietzsche’s concept of the affirmation of life as one of the main concepts of his philosophy in general. To overcome the pessimism and decadence modern culture has fallen into, Nietzsche construes the concept of the affirmation of life as its main goal and imperative. Hence, for each individual, it is necessary to affirm life by achieving their own autonomy, i.e. pathos of distance. Only by achieving genuine pathos of distance, would human beings be able to overcome pessimism.
Breeding phenology of amphibians in a Mediterranean ephemeral stream (Ardèche, France)
Authors: DUGUET Rémi
Published: July 2022

We present the results of the monitoring of breeding phenology of an assemblage of eight species of amphibians in a Mediterranean ephemeral stream, located in the Ardèche department, France. For most species, during 11 consecutive years, phenology was rather constant from year to year, which is rather unusual in Mediterranean temporary ponds. The occurrence of summer breeding was not rare for three species: Pelobates cultripes (Cuvier, 1829), Pelodytes punctatus (Daudin, 1803) and Hyla meridionalis Böttger, 1874. Breeding occurrence is linked to rewetting events caused by active karst resurgences, fuelled by periods of intense rainfall episodes called “cévenol” episodes. We document for the first time a triannual breeding occurrence (spring, summer, and autumn), and an in situ record of a short tadpole development period, concerning particularly P. cultripes. The ecological factors which can explain this species richness and these unusual observations are outlined. In conclusion, we encourage the conservation and monitoring of amphibian communities in ephemeral streams, as the natural and scientific interests for this type of habitat are often underestimated.
A Path for Moving Forward with Local Changes to the Library of Congress Subject Heading “Illegal Aliens”
Authors: George Kelsey , Grant Erin , Kellett Cate , Pettitt Karl
Published: July 2022

In 2014, the Library of Congress (LC) rejected a proposal to change headings in the Library of Congress Subject Headings (LCSH) that refer to undocumented immigrants as “Illegal aliens.” Two years later, a Subject Analysis Committee (SAC) working group submitted recommendations regarding how and why LC should change the LCSH “Illegal aliens.” That same year, LC decided to cancel the “Illegal aliens” subject heading, which Congress subsequently sought to block. Congress eventually required LC “to make publicly available its process for changing or adding subject headings . . . [and use] a process to change or add subject headings that are clearly defined, transparent, and allows input from stakeholders including those in the congressional community.” In response, LC paused their plan to change “Illegal aliens.” In June 2019, a new SAC Working Group on Alternatives to LCSH “Illegal aliens” was convened to survey local institutions implementing changes to the subject heading and to chart a path for librarians to address the subject heading at the organizational level. At the 2020 ALA Annual Conference, the working group presented their report. This paper builds upon that report and details next steps both for the working group and library professionals who plan to implement changes at their own organizations.
Supervisão de enfermagem: instrumento gerencial de qualificação da equipe e do cuidado
Authors: Giacomini Márcia Aparecida , Chaves Lucieli Dias Pedreschi , Galiano Camila , Alves Larissa Roberta , Mininel Vivian Aline , Henriques Silvia Helena
Published: July 2022

Objetivo: refletir sobre a supervisão de enfermagem como instrumento gerencial para qualificação da equipe e do cuidado. Método: estudo reflexivo, fundamentado em publicações científicas e vivência acadêmico-profissional. Resultados: para desenvolver a supervisão de enfermagem para além do controle de produção e reprodução de relações autoritárias, o enfermeiro precisa promover articulação entre os membros da equipe e adotar estratégias de corresponsabilização pelo cuidado de enfermagem, por meio de abordagens que promovam qualificação e segurança do cuidado, em uma perspectiva flexível, educativa, compartilhada, com vistas a avançar na utilização desse instrumento de gestão em novas dimensões, como a supervisão clínica e colaborativa. Conclusão: compreender as estruturas e os processos relacionados ao desempenho da supervisão pode favorecer a implementação de estratégias para apoiar os enfermeiros em suas funções, o que possibilita diminuir a distância entre teoria e prática profissional, superando adversidades do cotidiano de modo a qualificar a equipe e o cuidado.
RETRACTION: State of the art and new frontiers in sleep research: New qualitative and quantitative approaches (Engrami, 2002: 24(2), 62-73)
Authors: Milovanović Srdjan
Published: July 2022

Based on the fact that journal ENGRAMI is indexed in Serbian citation index SCIndeks, which provides journal a check of the manuscript, we are informed that based on subsequent, retroactive manuscript checking on the presence of plagiarism by means of CrossRef/iThenticate service, a violation of academic ethical principles was found.

The paper entitled: State of the art and new frontiers in sleep research: New qualitative and quantitative approaches by authors Ilanković N. and Ilanković A. (https://scindeks.ceon.rs/article.aspx?artid=0351-26650202062I)

which is published in the journal ENGRAMI (2002): 24(2) (pp. 62-73) presents the (auto)plagiate  (extensive use of the text published in the previous papers without quoting the original) of the articles:

Ilanković N, Draganić S and Ilanković A. EEG and the sleep disorders. in: Ilanković N, Ilanković V. i Jašović-Gašić M. (eds). Bolesti spavanja  dijagnostika i lečenje (Cibif, 1995): 79-96.

Ilanković N and Ilanković AN. EEG and the Sleep Disorders: a new quantitative approach.  In: Brain and Consciousness. Proceedings of the First Annual ECPD International Workshop on Scientific Bases of Consciousness. (Belgrade, 1997, Čigoja štampa), pp. 117-128.

Moreover, paper “State of the art and new frontiers in sleep research: New qualitative and quantitative approaches”  published in Engrami, 2002 was almost identical with the later publication:

Ilanković N, Ilanković A, Ilanković V. New Hypothesis and Theory about Functions of Sleep and Dreams. Macedonian Journal of Medical Sciences. 2014 Mar 15; 7(1):78-82.

The authors approached inadequately the quotation and citation of sources and thus acted contrary to the ethical code of scientific research, grossly violating the editorial policy of the journal ENGRAMI and Committee for Ethics of Publication principles. Bearing in mind a  violation of ethical principles relating to a multiple submissions from 1995 to 2014, the editorial board of the journal ENGRAMI made a retraction of the paper.
Modeling the fuel consumption of forwarders based on different log sizes and forwarding distances
Authors: Rukomojnikov Konstantin , Tsarev Evgenii , Sergeeva Tatiana , Gilyazova Tatiana , Shirnin Yurij
Published: July 2022

The aim of the proposed study was to show the fuel consumption of various log skidders and to create models for estimating the fuel consumption for different forwarders operating in cutting areas with different tree size characteristics. Production tests of the forwarders' operation at various cutting areas have been carried out. In experimental studies, forwarders from different countries were used. In particular, forwarders: Amkodor-2682 (Belarus), Komatsu 840 (Japan), TB-1M-16A (Russia).To implement the experiment and estimate the fuel consumption by forwarders, a volumetric method of replenishing the fuel tank at the end of the machine's working cycle was chosen. As a result of the performed experimental studies, the mathematical models for calculating the fuel consumption of forwarders on the dimensional characteristics of trees and the distances of log forwarding have been substantiated. They are necessary for estimating fuel consumption under different operating conditions of forwarders. The results were obtained with a confidence level of 0.95. The coefficients of determination for forwarders: Amkodor-2682, Komatsu 840, TB-1M-16, were 0.81, 0.80 and 0.84, respectively. This shows a high proportion of the influence of the dimensional characteristics of the object of labor on the fuel consumption of machines. The use of the developed mathematical relationships will facilitate the planning and calculation of the operating costs of the forwarding equipment.
The analyzing of personal and public transport traffic flows in Belgorod agglomeration
Authors: Kushchenko Liliya , Kushchenko Sergey , Kambu Alina , Novikov Alexander
Published: July 2022

The transport system is the fundamental factor characterizing the quality of life of a megapolis. The economic component also depends on the development of transport in the urban agglomeration, covering the market of goods and services. The growth of global cargo and passenger flows requires better quality requirements for transport infrastructure, and the efficiency of the development of the transport complex is becoming one of the most important transport tasks. The article discusses the features of the organization of traffic in the urban agglomeration of Belgorod. The analysis of incoming flows into the urban agglomeration is carried out. The sections of the urban agglomeration that are the busiest with passenger transport are presented. The main planning characteristics on the stretches of transport streets of the Belgorod with a high level of loading are indicated. A rational solution is proposed to improve the functioning of public and private transport in the urban agglomeration.
Planning and experimental studies of selection the optimal welding mode by the friction of fitting rods
Authors: Buzauova Toty , Turehanov Bayanbek , Mateshov Arman , Zhauyt Algazy , Ismagulova Sarakul , Zhunisbekov Seitbek
Published: July 2022

The methods of friction welding of various materials have been studied, as well as the design and capabilities of the device for friction welding have been determined. The design of the device for friction welding on the basis of a lathe has been developed taking into account the established requirements and recommendations of machine building enterprises. To study the influence of technological factors on the quality of welded joint formation, a full factorial experiment (FFE) of type 22 was set up according to the plan. The adequacy of the planned experiment was confirmed by calculations (Fcalcul. = 1.1 < Ftabl. = 4.46.) on the basis of which a full-scale experiment was carried out. According to the results of the experimental plan, it was found that the heating time of the work pieces being welded has the most significant effect on the total length of the seam upsetting. The optimal mode with the correct formation of the burr has been chosen. The convergence of the full-scale test results with the planning of the Type 22 full factor experiment has been identified, resulting in the determination of the optimal mode.
A General Computational Technique for the Prediction of Cavitation on Two-Stage Propulsors
Authors: Kinnas Spyros A. , Choi Jin-Keun , Kakar Karan , Gu Hua
Published: July 2022

An iterative technique for the prediction of the performance of two-component propulsors, includ­ing the effects of sheet cavitation, is presented. A vortex-lattice method, originally developed for the prediction of the performance of cavitating single propellers in non-axisymmetric inflow, is applied to each one of the components. The "effective" wake for each component is determined via an Euler solver, based on a finite volume method, in which both components· are represented via body forces. The axisymmetric version of the method is used to predict the mean performance of a contra-rotating propulsor and of a pre-swirl stator/rotor combination. The non-axisymmetric version of the method is used to predict the non-axisymmetric flow-field in the wake of a pre-swirl stator, and the unsteady cavitating flow performance of the rotor subject to that flow-field.
Hydrofoil Testing At High Reynolds Number
Authors: Bourgoyne Dwayne A. , Judge Carolyn Q. , Hamel Joshua M.
Published: July 2022

Lifting surfaces are used both for propulsion and control of sea vessels and must meet performance criteria such as lift, drag, and (in some military applications) hydroacoustic noise limits. Design tools suitable to predict such criteria must handle complex flow phenomena and manage the wide range of flow scales inherent in marine applications (Reynolds numbers ~10^8). To date, the development of such tools has been limited by the lack of controlled experimental data in this high Reynolds numbers range.

Lifting surface flow is the focus of current high Reynolds number experiments involving a two-dimensional hydrofoil in the world's largest water tunnel, the US Navy's William B. Morgan Large Cavitation Channel (LCC). The goal of these experiments is to provide a unique high Reynolds number experimental dataset at chord-based Reynolds numbers (Re) approaching those of full-scale propulsors ( ~ 10^8). This data will be used for validation of scaling laws and computational models, with particular emphasis given to the unsteady, separated, turbulent flow at the trailing edge. In addition, these experiments will provide fundamental insight into the fluid mechanics of trailing-edge noise generation in marine propulsion systems.

This paper describes the experimental equipment and methods employed in the test program. Described herein is the use of the LCC's Laser Doppler Velocimetry (LDV) capability to acquire flow velocity mean and turbulence quantities, as well as estimates of boundary layer transition. Also presented is a Particle Imaging Velocimetry (PN) system developed for these experiments and employs seed injection upstream of the channel's flow straightener. Finally, a description is given of instrumentation mounted in the foil for measurement of vibration and surface static and dynamic pressures. [Significant assistance provided by personnel from NWSC-CD, Sponsored by Code 333 of the Office of Naval Research].
RANS Simulation of Free-Surface Wave-induced Separation Around a Surface-Piercing NACA0024 Hydrofoil
Authors: Kandasamy M. , Wilson R. , Stern F.
Published: July 2022

This project deals with free-surface wave-induced separation on a NACA0024 foil over a range of conditions, along with the validation of the results from the towing tank. The simulations are performed using CFDSHIP-IOWA (a general purpose research code for ship hydrodynamics) and validated using the experimental data got from the towing tank. The flow is simulated for the Froude numbers (0.19, 0.37, 0.55). Also, four different solution domains pertaining to different flow conditions were considered, to study the effects of blockage. The flow conditions and uncertainty analysis are discussed and the flow pattern is studied. Steady flow results are presented and discussed with regard to the wave and viscous flow, nature of separation, vortex patterns and free-surface boundary-layer interactions. The flow topology was studied and important observations on the nature of skin friction lines and occurrence of nodes and saddles for surface piercing bodies are made.
Model Resistance Testing in the Robinson Towing Tank at Webb Institute
Authors: Hadler J. B. , Gallagher N. J. , VanHooff R. W.
Published: July 2022

The Robinson Towing Tank is an essential element in the education of students at Webb Institute. Students perform a number of resistance tests in the towing tank as part of their laboratory experience. Since Webb Institute requires a senior thesis, many students elect to conduct a variety of experiments in the tank, including resistance tests on vessels of current or possible future interest. Recently a pioneering series of experiments was conducted on trimarans and published in the annual proceeding of the Society of Naval Architects and Marine Engineers (SNAME).

The towing tank and its test equipment were built about fifty years ago. Minor upgrading has been conducted throughout that time. The improvements were ma.de mostly through student thesis endeavors which of necessity were at best incremental improvements. About three years ago we started a program to significantly improve the carriage and the data acquisition system. This work has been accomplished by the two co-authors of this paper along with the help of numerous students. The detail of the redesign is the subject of a companion paper presented at the session on New Facilities, Equipment and Techniques, (VanHooff, Gallagher and Compton).

The new equipment has been in service this past academic year. As a con­sequence we have been conducting a. series of experiments to establish the capabilities of the system and to determine any deficiencies that need correction. To assist us in this endeavor we have used the Webb class of 2002, as part of their laboratory training, to conduct a number of the experiments. The initial test work performed by the students during the class laboratory periods last fall indicated that the model test results were unreliable. Consequently, the authors, this past winter, initiated a systematic study to determine the reasons for the failure to correctly predict the resista11c:e of selected models. Selected members of the class of 2002 assisted in the testing program this past spring.
Microbubble Drag Reduction on a Surface Effect Ship Model: Tests At the Langley Seawater Tow Tank
Authors: Philipst R. , Henoch C. , Latorre R. , Nuttall G.
Published: July 2022

A series of model tests was conducted recently at the high-speed NUWC/NASA Langley seawater tow tank in order to assess the effectiveness of a microbubble drag reduction system on a surface effect ship (SES) model. The SES model used is a shirtless, dual-pontoon hull with an air cavity on 60% of each demi-hull and runs with a large drag decrease when compared to a slender mono-hull. The model has a limited wetted area when cavity riding; these surfaces were outfitted with injectors for microbubbles. Independent variables included model speed, cavity airflow rate, and microbubble flow rate with total drag force the dependent variable. It was found that the microbubble injection can reduce the total resistance of an SES model by up to 17%.
The Effects of Propeller Tunnels on Propeller Performance for High Performance Planing Craft
Authors: Platzer Gregory P.
Published: July 2022

Propeller tunnels fitted to high-speed yachts are becoming more prevalent. The advantages of reduced operating draft or the possibility of using larger propellers are attractive to the boat builder. This paper examines the effects of propeller tunnel applications on propeller cavitation/vibration characteristics as compared to more traditional non-tunnel configurations. Propeller-induced excitation levels are calculated for a systematic series of hull configurations with varying propeller tip clearances. Calculations are given for standard 4 and 5-bladed propellers.
Real-time Estimation of Wave-induced Vertical Bending Moment from Ship Motion Measurements
Authors: Xu Jinsong , Haddara M. R.
Published: July 2022

A description is given of a time-domain technique for real-time estimation of a wave-induced vertical bending moment from ship motion measurements. The estimated values can be compared with those obtained from the strain gauge readings to ensure the validity of Hull Response Monitoring Systems. Artificial neural networks are used to model the time-domain relationship between wave-induced vertical bending moment and coupled heave and pitch motions. The proposed technique was validated using a set of experimental data.
Experimental Study on Nonlinear Rolling in Irregular Beam Seas
Authors: Belenky Vadim , Suzuki Shiro , Yamakoshi Yasuyuki
Published: July 2022

The model test was aimed at the validation of practical non-ergodicity ( correct math term is cyclic non-stationary quality). It means that the ergodic hypothesis cannot be used for any practical calculation of nonlinear irregular rolling. In other words, all the probabilistic characteristics have to be averaged over a representative ensemble of realizations and any result based on one realization is not correct. This was first started on the base of numerical simulations.

The model experiment was carried out in the towing tank of the National Research Institute of Fisheries Engineering in Japan. There were two series of tests with two models. The first series of tests was done with free-drifting model of a Japanese purse seiner. Such a test yields about 10 minutes of realization. Since the absence of ergodic qualities can be checked only on a significant amount of time, the second series of tests was conducted with a restrained model that was not able to drift. The second series produced 30 and 40 minutes realizations of model time that is close to a quasi-stationary range of full-scale waves. It was meant that the first series can be used for validation of the second one.

The paper is focused on model test technique.
Accuracy Issues and Measurement Complications Pertaining to Standard Ship Trials
Authors: Cumming David
Published: July 2022

This paper discusses accuracy issues and measurement complications related to acquiring data during standard ship trials. Recent Institute for Ocean Technology (IOT) experience using a modern trials instrumentation capability during seakeeping, propulsion and manoevring trials on a small monohull will be discussed at length with a description of the measurement techniques and calibration procedures used, problems encountered, the source of accuracy uncertainties and some general ship/model correlation issues. The paper is designed to stimulate discussion and promote debate for the benefit of all researchers involved in ship performance assessment.
Modelling Multi-Directional Wind Waves and Swell in an Experimental Basin
Authors: Mak Lawrence , Sullivan Michael , Baddour Emile
Published: July 2022

Results of four models to simulate the coexistence of swell and wind waves in an experimental basin are presented. Engineers can use these models to assess the effects of wave directionality on structures, and to study effects of swell and wind waves separately, before combining these wave systems to determine their effects together. A frequency interlace technique was used to superimpose swell and wind waves to form a combined wave field. Measured and numerically synthesized results indicated that the quality of the combined wave is comparable to that of a multi-directional wave. The combined wave field is spatially homogeneous and repeatable. Bidirectional spreading was reproduced in frequencies where swell and wind wave spectra overlapped.
Measurements of the Evolution of the Wake and Tip Vortex of a Control Surface Undergoing Periodic Motion
Authors: Turnock Stephen R. , Querard Aymeric B.G.
Published: July 2022

A wind tunnel investigation has been carried out into the downstream wake of a floor mounted control surface undergoing periodic motion. The control surface tested has a rectangular planform and geometric aspect ratio of 1. Results are presented for tests at a Reynolds Number of 560,000 with extensive pitot-static axial wake surveys and use of Particle Image Velocimetry, PIV, to study the behaviour of the tip vortex. PIV results are given for one axial station at 55% x/c downstream of the trailing edge. The steady results are analysed to show the size and strength of the tip vortex as a function of angle of attack. PIV results are taken at four stages in a periodic oscillation corresponding to minimum, maximum and mean angles of attack. A time dependent behaviour is clearly observed in the strength and location of the tip vortex.
Model-Scale and Full-Scale Measurements on Ship Waves
Authors: Fu Thomas C. , Rice James R. , Karion Anna
Published: July 2022

The measurement of ship-generated waves in tow tanks has been well established and several techniques have been developed and are commonly in use at tow tank facilities worldwide. The measurement of the wave field around a full-scale ship in the field has only recently been undertaken. Each of these situations presents a set of constraints and issues for the instrumentation and measurement technique to deal with. This paper will discuss free-surface measurement at full and model scales, and the methods currently being used and developed at Naval Surface Warfare Center, Carderock Division to measure model and full scale ship generated waves.
Design and Fabrication of a Collective and Cyclic Pitch Propeller
Authors: Humphrey T. Charles , Bose Neil , Williams Christopher , Snow Michael
Published: July 2022

Helicopters achieve three-dimensional flight using a rotor capable of both collective and cyclic pitch. It was proposed that this type of propulsion system could propel and maneuver an underwater vehicle. A collective pitch and cyclic pitch propeller (CPCPP) was designed and developed as a full scale working prototype for the autonomous underwater vehicle (AUV) propulsion. This paper discusses the design and construction aspects of the CPCPP.
Commissioning a Stereoscopic Particle Image Velocimetry System for Application in a Towing Tank
Authors: Molyneux David , Xu Jie , Bose Neil
Published: July 2022

In January 2004, Memorial University purchased a stereoscopic Particle Image Velocimetry (PIV) system for making flow measurements. Although the system was potentially very versatile, its primary application was envisioned to be in a towing tank. The system was supplied as a complete package of hardware and software for calibration, data collection and analysis. The intention of the PIV system designers was to collect as many data frames as possible for a fixed measurement plane location, relative to the model. This required the PIV system to be fixed on the towing carriage, moving with the model being studied. It was found during some preliminary experiments that an active seeding delivery system was necessary to ensure sufficiently high seeding particle concentration, especially when measuring flow velocities around a model hull with a large yaw angle. This paper describes the development of a seeding technique for a PIV system that can be used in a towing tank. The paper also includes an estimate of the uncertainty of the measurement system, including the analysis of the flow behind the device used to deliver seed particles into the flow.
The Effect of Model Size on Form Factor and Predicted Resistance
Authors: Rackham Horace H.
Published: July 2022

“A Simple Method for the Evaluation of the Form Factor and the Low Speed Wave Resistance” by C. W. Prohaska.

A simple method to evaluate form factor and low speed wave resistance was first introduced during the Eleventh ITTC - Resistance Session by C. W. Prohaska of the Hydro-og Aerodynamisk Lab (ref[1]).
Trials of the MIT i-Experiment : A Web-Based Remotely Operated Towing Tank for Experimentation and Education
Authors: Kimball Richard , Hendrickson Kelli , Unger Mathew , Yue Dick K.-P.
Published: July 2022

The paper presents trials of the iExperiment Towing Tank component of MIT’s iMarine system. A remotely operated laboratory experiment for demonstrating ship resistance was developed and conducted in the MIT Towing Tank in Cambridge, Massachusetts. The lab was run remotely during a classroom session on model testing in a fluid mechanics class at Maine Maritime Academy in Castine, Maine. Using an internet connection, students operated the model test in the Towing Tank in real time through the learning portal “iMarine”. They were able to vary run parameters, repeat runs and visualize the experiment on web-based cameras. Data for the hull resistance vs. speed were collected in real time and automatically posted on the i-Marine server for immediate download by the students. An overview of the MIT Towing Tank iExperiment and the iMarine system is discussed as well as details on the success of the experimental runs in the classroom. The written lab materials used for the lab are also presented. The lab experiment consisted of standard resistance tests on a Series 60 hull model. The data collected from the lab is also presented.
Abrindo horizontes para uma perspectiva musicobiográfica: um recorte analítico de uma pesquisa com três professores de música
Authors: Queiroz Haniel Henrique Vieira de , Abreu Delmary Vasconcelos de
Published: July 2022

Este trabalho é um recorte de uma pesquisa concluída em nível de mestrado que teve como objeto de estudo os processos de musicobiografização de três professores de música a partir de suas pesquisas realizadas no mestrado. O objetivo principal da pesquisa consistiu em compreender como esses profissionais vêm refigurando-se com suas pesquisas nas práticas músico-educativas. O referencial teórico esteve centrado na teoria da tríplice mimese de Paul Ricoeur – prefiguração, configuração e refiguração – no tempo e narrativa. Como referencial metodológico, a pesquisa utilizou o método biográfico, tendo como fonte as narrativas (auto)biográficas de professores. Para este artigo, tomamos como objetivo apresentar uma síntese analítica da pesquisa concluída destacando compreensões a respeito do conceito de musicobiografização que foram se delineando com a pesquisa. Ao concluir a pesquisa, compreendemos que os três coparticipantes da pesquisa engendram uma vida-formação refigurada. Assim, a reflexividade narrativa é constitutiva de uma força potencial geradora de impactos nas práticas músico-educativas desses profissionais.
Prepoznava in obravnava obporodnih poškodb analnega sfinktra
Authors: Serdinšek Tamara , Prša Gregor , Žebeljan Ivan
Published: July 2022

Pri več kot 85 % žensk med vaginalnim porodom pride do določene stopnje poškodbe presredka, pri čemer se obporodne poškodbe analnega sfinktra pojavljajo v povprečju pri 0,5–7 % vseh vaginalnih porodov. Kar 20–40 % primerov obporodnih poškodb analnega sfinktra je prikritih ali spregledanih, zato jih je izjemno pomembno prepoznati. Če odkrijemo poškodbo analnega sfinktra, jo je treba oskrbeti v operacijski dvorani. Pred kirurško oskrbo moramo zagotoviti ustrezno osvetlitev in analgezijo ter rano natančno pregledati. Anorektalno sluznico zašijemo s posameznimi ali kontinuiranimi šivi, notranji analni sfinkter pa s posameznimi ali t. i. šivi mattress. Pri poškodbah zunanjega analnega sfinktra, ki zajemajo celotno dolžino in debelino mišice, lahko uporabimo bodisi tehniko šivanja konec s koncem bodisi tehniko prekrivanja, pri delnih poškodbah pa tehniko konec s koncem. Na koncu zašijemo še mišice in kožo presredka. Perioperativno je treba uporabiti antibiotično zaščito in odvajala. Po obporodni poškodbi analnega sfinktra je potrebno bolnico spremljati. Prvi pregled naj bo 6 do 12 tednov po porodu. Najpogostejše posledice poškodb analnega sfinktra so bolečina v presredku, bolečine ob spolnih odnosih in druge težave v spolnosti ter analna inkontinenca, ki se pojavi v 15–61 % primerov. Potrebno je opraviti svetovanje glede načina poroda v naslednji nosečnosti, saj se ponovna poškodba analnega sfinktra pojavi v 4–8 %.
Soldados y padres. De guerra, memoria y poesía (2021) de José Jurado Morales
Authors: Gallardo Calvo Lara
Published: July 2022

Reseña de la obra Soldados y padres. De guerra, memoria y poesía (2021) de José Jurado Morales, Premio Manuel Alvar De Estudios Humanísticos 2021.