bluuebunny/crossref_metadata_2025 huggingface dataset:
Dramaturgiai mintázatok a Bánk bánban
Authors: Nagy Imre
Published: September 2022

A tanulmány azt vizsgálja, hogy Katona József a Bánk bánban miként használja fel – s alakítja át egyszersmind saját eredeti elképzelésének megfelelően – a korszak két jellegzetes színjátéktípusának, az érzékenyjátéknak és a végzetdrámának a dramaturgiai eszközeit. A vizsgálat a Bánk bán két szövegrészletének, Bánk szerelmi monológjának (I. felvonás) és Mikhál elbeszélésének (IV. felvonás) elemzésére épül. Bánk monológjában a szerelem individuális felfogása formálja át az erény próbatételének érzékenyjátékos témáját. A dráma sötét horizontjára jellemző, hogy a cselekményben három nő szerepel, s mindhárom valamely erőszak elszenvedőjévé válik. Ezek az események a mű lélektani dimenzióját erősítik fel. Mikhál elbeszélése, amelyet sokan epikus betétnek tekintenek, s az előadások rendszerint mellőzik, a dráma szerves része. Egy múltbeli tragikus éjszaka következményei a cselekmény jelenében alakítják tovább, s viszik majd a végkifejlethez a spanyol szereplők, a bojóthi Mortundorfok (Mikhál, Simon és Melinda) végzetét. A dráma szerves kompozíciójára jellemző, hogy ez a folyamat, éppen Mikhál elbeszélése által, összefügg Gertrudis (és természetesen Bánk) tragikumával. A végzetdrámai folyamat, immár átlényegülve, a Bánk bán tragikus összhangzatának egyik meghatározóan fontos szólamává válik.
ПІДГОТОВКА РЕЗЕРВУ СПОРТСМЕНІВ-ГИРЬОВИКІВ В УКРАЇНІ НА СУЧАСНОМУ ЕТАПІ
Authors: Романчук Сергій
Published: September 2022

Мета. Дослідити динаміку підготовки резерву спортсменів-гирьовиків в Україні (2016-2019 роки). Методи. Під час дослідження використано теоретичний аналіз та документальний метод (вивчення протоколів змагань). Було проаналізовано протоколи всеукраїнських та міжнародних змагань з гирьового спорту (з поштовху гирь за довгим циклом та класичного двоєборства). У дослідженні взяли участь спортсмени-гирьовики (чоловіки віком 18-40 років) збірних команд областей України різних вагових категорій: до 63 кг, 68 кг, 73 кг, 78 кг, 85 кг, 95 кг та понад 95 кг. Результати. Встановлено, що кількість спортсменів, які вперше виконали норматив МСУ та МСУМК у 2016-2019 роках у важких вагових категоріях є значно менше, ніж у легких і середніх вагових категоріях, що свідчить про недостатню ефективність чинної програми підготовки спортсменів у класичному двоєборстві. Висновок. Протягом 2016-2019 років вперше виконали норматив МСУ 55 спортсменів–гирьовиків, а досягли результату МСУМК 8 спортсменів. При цьому спостерігається негативна динаміка.
EŞYA KAVRAMINI YENİDEN DÜŞÜNMEK: NFT’LERİN EŞYA NİTELİĞİ VE EŞYA HUKUKU BAKIMINDAN GELECEĞİ ÜZERİNE BİR İNCELEME
Authors: TEKELİOĞLU Numan
Published: September 2022

Blokzinciri teknolojisindeki gelişmeler kısaca NFT olarak adlandırılan ve benzeri olmayan dijital varlıkları meydana getirmiştir. Genellikle dijital sanat eserleri olarak anlaşılsa da, NFT’lerin kullanılma potansiyeli olan alanlar bununla sınır-lı değildir. NFT’lere olan yoğun ilgi, beraberinde muhtelif hukuki tartışmaları getirmektedir. Bu tartışmalar içerisinde NFT’lerin eşya sayılıp sayılamayacakları meselesi başı çekmektedir. Bunun yanında, taşınır ve taşınmaz eşyaların tokenler ile temsil edildiği bir dijital mülkiyet tasavvuru öngören “tokenizasyon” kav-ramı da hızla gündemdeki yerini almaktadır. Almanya ve İsviçre’de kıymetli evrak hukuku alanında kripto tokenlerin önünü açan düzenlemelerden sonra, eşya hukuku alanında da bunun mümkün olup olamayacağı üzerine fikir yürütülmeye başlanmıştır. Ayrıca Lihtenştayn’ın mülkiyet hakkının tokenizasyonuna izin veren bir yasal düzenlemeye gitmesi dikkat çekicidir. Bununla birlikte, mevcut hukuk kurallarının gerek NFT’lerin eşya sayılması gerekse de mülkiyet hak-kının tokenizasyonu için elverişli olup olmadığı üzerinde durmak gerekmektedir.
H-type Rectourethral Fistula with Anal Stenosis in a Male Patient: A Case Report with Literature Review
Authors: Edan Obay A.
Published: September 2022

Background: H-type rectourethral fistula is a rare variant of anorectal malformation that affects male neonates. It is usually associated with anal stenosis but with a normal anal position and shape, so it is difficult to be diagnosed early after birth. We present this case to evaluate the functional outcome of this rare anomaly in a male patient and compare it with other reported cases with different ages at diagnosis. Case Presentation: A nine-month-old infant presented with recurrent attacks of urinary tract infection and failure to thrive. After proper evaluation, the diagnosis of an H-type rectourethral fistula with anal stenosis was confirmed, and a diverting double-barreled colostomy was performed as an initial procedure. Posterior sagittal anorectoplasty with ligation and division of fistula was successfully done, followed by colostomy closure. Now the patient is five years old and is continent for urine and stool. Conclusions: The diagnosis of H-type rectourethral fistula with anal stenosis is challenging to physicians, and a high index of suspicion is required to reach the diagnosis as the anal opening had a normal shape and location. If this condition is diagnosed and treated early, these patients will have an excellent functional prognosis, as the muscle complex and anal sphincter are well developed.
Examining the effect of Debris Flow on Oil and Gas Pipelines Using Numerical Analysis
Authors: Mustaffa Zahiraniza , Al-Bared Mohammed A.M. , Habeeb Nursyahira , Khan Mudassir A.
Published: September 2022

This article examines the impact of debris flow on semi-exposed pipelines to determine the plastic deformation and stresses by considering pipe-debris flow interaction. A 3-D finite element approach was adopted to study the mechanical behavior of pipelines subjected to debris flow. Integration of pipeline property (thickness) with debris flow intensity (impact pressure and angle) was also considered in a finite element numerical model for semi-exposed. The analysis showed that the impact angle between 35° and 75° with an impact pressure of 200 kPa and 250 kPa significantly affected the stability and integrity of the pipeline. There was a slight impact of wall thickness on the stability of the pipeline due to the passive soil resistance. Maximum plastic deformation of 124 mm was encountered in the case of 35° impact angle, which was 3% more than the deformation observed at 20° impact angle.
Moreover, large distribution of von mises stresses was observed, as 1390 Mpa, 1450 Mpa, 1440 Mpa, and 1440 Mpa for impact angles of 20°, 35°, 75°, and 90° in the impacted zone of the pipeline in each set of analysis. Shear failure of the pipeline was observed during the analysis as von misses’ stresses were more than the yield stress (520 Mpa) of the pipeline. The developed model in this study can be utilized for further research and will be a basis for designing pipelines crossing through mountainous regions.
Presentación
Authors: Herrera Miguel Ángel
Published: September 2022

Este número 33 de la revista Ciencia Política aparece con cierta tardanza, pero con compensaciones coyunturales. Está dedicado a recordar con lente analítica plural los nuevos movimientos estudiantiles y universitarios que se desencadenan a raíz de las protestas vividas a partir del 25 y 26 de febrero de 1971, con epicentro en la Universidad del Valle ad-portas de celebrar en Cali los Juegos Panamericanos.
Self-Efficacy of English Language Teachers With Low and High Curriculum Literacy in Indonesian Schools
Authors: Yasin Burhanuddin , Kasim Usman , Mustafa Faisal , Marhaban Saiful , Komariah Endang
Published: September 2022

This study explores the difference in self-efficacy between high school English language teachers with two levels of curriculum literacy. The data were collected using a curriculum literacy test and a self-efficacy scale that were delivered online to 251 English teachers in Indonesia. The respondents were split into two groups based on their curriculum literacy scores. The findings show that teachers with higher curriculum literacy levels were more self-efficacious than those with a lower level of curriculum literacy. This implies that curriculum related courses in preservice teacher programs need to be improved, and in-service teacher training should focus on curriculum knowledge.
Social Emotional Learning (sel) Program Among Fifth graders, Three and Six Months Later
Authors: De Souza Marisangela Siqueira , Soares Adriana Benevides , Pizarro de Freitas Clarissa Pinto
Published: September 2022

This study carried out a follow-up three and six months after the application of a Social Emotional Learning (SEL) program, aiming to verify the maintenance of social skills in Elementary Education students in situations of social vulnerability from Rio de Janeiro, Brazil. A sample of the intervention and control groups composed of 20 students aged 10 to 13 (M = 10.3, SD = 0.8), boys and girls were selected. The SSRS (Social Skill Rating System) and the TDE (School Achievement Test) used in the intervention for teachers and students were reapplied. The results showed that the decrease in psychopathological symptoms and the improvements in academic performance were maintained after the intervention. These findings highlight the relevance of developing social emotional learning programs with elementary school students.
 
How to cite this article: Souza, M.S., Soares, A.B., & Freitas, C.P.P. (2021). Social emotional learning (sel) program among fifth graders, three and six months later. Revista Colombiana de Psicologia, 31 (1), 35-48. https://doi.org/10.15446/rcp.v31n1.83042
Pyrazinamide–isoniazid hybrid: synthesis optimisation, characterisation, and antituberculous activity
Authors: Valderrama Negrón Ana Cecilia , Ramirez Panti Rocio I. , Aliaga Paucar Christian M. , Grandez Arias Fernando , Sheen Cortovaria Patricia , Zimic Peralta Mirko Juan , Cauna Orocollo Yudith
Published: September 2022

Over time, the effective resistance mechanisms to various first- and second-line drugs against the disease of tuberculosis make its treatment extremely difficult. This work presents a new approach to synthesizing a hybrid of antituberculosis medications: isoniazid (INH) and pyrazinamide (PZA). The synthesis was performed using ultrasound-assisted synthesis to obtain an overall yield of 70%, minimizing the reaction time from 7 to 1 h. The evaluation of the biological activity of the hybrid (compound 2) was tested using the tetrazolium microplate assay (TEMA), showing inhibition in the growth of Mycobacterium tuberculosis H37Rv at a concentration of 0.025 mM at pH 6.0 and 6.7.
Photoprotective action, antioxidant activity, and toxicity of aqueous extracts of Campomanesia sessiliflora O. Berg
Authors: Castro Thiago Luis Aguayo de , Ferreira Bianca Duarte , Cardoso Claudia Andrea Lima
Published: September 2022

Campomanesia sessiliflora O. Berg is a medicinal plant that is object of very few studies in the literature. In this context, the antioxidant activity, sun protection factor (SPF) and toxicity in Artemia salina Leachs were analysed, as well as the contents of phenolic compounds, flavonoids and tannins in aqueous extracts prepared by infusion and maceration of C. sessiliflora leaves. Maceration showed higher levels of phenolic compounds and flavonoids regarding infusion and the two samples had the same tannin content. The LD50 was similar for the extracts, both were considered as low toxicity in the test with A. salina. Infusion presented a SPF of 9.98, while maceration presented a SPF of 6.74. Maceration presented better contents of secondary metabolites and antioxidant activity and infusion presented a better SPF. The extracts have the potential of incorporation into multifunctional products.
New records of invasive hammerhead flatworms (Platyhelminthes, Geoplanidae, Bipaliinae) from Mexico using a citizen science platform, with an identification key to the species found in North America
Authors: de Luna Manuel , García-Barrios Roberto , Valle Paola , Boll Piter Kehoma
Published: September 2022

We present new records of the invasive hammerhead flatworms Bipalium kewense Moseley, 1878 and Bipalium vagum Jones & Sterrer, 2005 (Platyhelminthes, Geoplanidae, Bipaliinae) from several states in Mexico based on iNaturalist and two vouchered specimens. This represents for Mexico the first review of distribution records of this group and highlights the importance of citizen science in monitoring the distribution of these ecologically important invasive predators. Methods for the collection and preservation of hammerhead flatworms, as well as an identification key, are proposed.
Nanocomposite fabrics with high content of boron nitride nanotubes for tough and multifunctional composites
Authors: Martinez-Rubi Yadienka , Ashrafi Behnam , Jakubinek Michael B. , Zou Shan , Kim Keun Su , Cho Hyunjin , Simard Benoit
Published: September 2022

Herein, we apply a one-step filtration method to obtain boron nitride nanotube (BNNT)-based fabrics incorporating high content of BNNTs and an adhesive thermoplastic polyurethane (TPU). The adsorption behavior of TPU on BNNTs of different qualities and on functionalized BNNTs was evaluated in a two-solvent system and contrasted with carbon nanotubes, pointing to differences in surface interaction. BNNT quality affected not only the nanocomposite mechanical properties but also the trends as a function of increasing TPU content and the adhesion to substrates. Samples containing higher quality BNNT materials showed up to 12-fold improvement in Young’s modulus, while functionalization improved the tensile toughness. Thermal conductivity varied between 1.5 and 3 W m−1 K−1 depending primarily on the BNNT content and without a pronounced effect from the quality of BNNTs. The BNNT-TPU fabric offers a promising format to exploit BNNTs within tough, electrically insulating, thermally conductive materials for heat dissipation within packaging or adhesive materials in electronics.

Graphical abstract
Does The Imposter Strategy Pass the Authenticity Test?
Authors: Kane Sharon
Published: September 2022

While agreeing with the authors of the 2005 JAAL article “The Imposter” (http:dx.doi.org10.1598JAAL.49.3.2) regarding the importance of critical reading and the need to provide purpose for reading, this article advocates using authentic texts for instruction rather than embedding contradictory ideas, statements, or numbers into reading passages. Teachers can model strategies and suggest ways for students to

Discover word‐ and sentence‐level errors in texts they read

Learn to recognize problems with facts, logic, and arguments

Identify problematic issues in texts relating to morality and ethics

Suspicious readers can be on the look‐out for flaws and examples of deliberate attempts to mislead; critical readers can respond to texts with their own thoughts, accusations, and rebuttals. Examples are provided to show how teachers can use real texts to model thoughtful and careful reading.
Problematizing Literature Circles as Forums for Discussion of Multicultural and Political Texts
Authors: Thein Amanda Haertling , Guise Megan , Sloan DeAnn Long
Published: September 2022

In a six‐week literature circle unit in a tentth‐grade classroom, one group of students discussed Dorothy Allison's novelBastard out of Carolina. By criteria frequently used to judge the quality of discussion, this literature circle was successful. However, several key moments are highlighted that point to the limits of literature circles as they are typically implemented for engaging students in the full critical depth of multicultural and political texts. Finally, suggestions are offered for rethinking literature circle pedagogy with the goal of offering students a more nuanced and robust experience with such texts.
Collaborating to Cross the Mathematics–Literacy Divide: An Annotated Bibliography of Literacy Strategies for Mathematics Classrooms
Authors: Friedland Ellen S. , McMillen Susan E. , del Prado Hill Pixita
Published: September 2022

This article offers recommendations for literacy and mathematics leaders as they design and implement effective professional development and support for middle and secondary mathematics teachers to integrate literacy into their instruction. To cross the mathematicsliteracy divide, the authors provide an annotated bibliography of articles detailing the effective use of literacy strategies for mathematics instruction. The article closes with a discussion of the characteristics of these articles and list of suggestions for greater collaboration between literacy and mathematics leaders to support the instructional practices of mathematics teachers.
ON TWINNING-MEDIATED VOID GROWTH IN HEXAGONAL CRYSTALS
Authors: Indurkar Padmeya P. , Joshi Shailendra P. , Benzerga A. Amine
Published: September 2022

Aspects of plastic anisotropy in damage accumulation are considered for a class of hexagonal crystals that deform by combined slip and twinning. Focus is placed on crystallographic aspects that are currently absent from constitutive formulations of ductile damage. To this end, three-dimensional finite-element calculations are carried out using a cubic unit cell containing a single void embedded in a crystal matrix. Plastic flow in the latter is described using crystal plasticity with parameters representative of single crystal pure magnesium. The effect of void oblateness is analyzed in some detail, as voids often form as blunted microcracks in Mg alloys. The analyses reveal two aspects peculiar to twinning-mediated void growth: (1) insensitivity of the effective stress-strain response to void oblateless and (2) a plastic auxetic effect. Both aspects manifest under certain circumstances. Some implications in terms of incorporating the uncovered crystallographic aspects in coupled plasticity-damage formulations of anisotropic materials are discussed.
DESIGN AND CHARACTERISTIC MODE ANALYSIS OF A PENTAGON-SHAPED UWB ANTENNA
Authors: Babu Kamili  Jagadeesh , Addepalli Tathababu , Kumar SVD Anil , Kumar Bandi Kiran , Prasad D. Rajendra , Sai L. Siva
Published: September 2022

In the present work, characteristic mode analysis (CMA) is utilized for analyzing and designing a novel ultra-wideband (UWB) antenna having a pentagon-shaped structure. The designed antenna gives the impedance bandwidth in the range of 3.1-12.7 GHz, covering the whole UWB range. The developed antenna has compact dimensions 35 × 30 × 1.6 mm with good directional radiation properties and gain characteristics. The antenna is analyzed using the latest analytical tool known as CMA. The parameters like modal significance, modal surface current distribution, and modal patterns are generated and studied in arriving at the operational behavior of the proposed antenna structure.
College Students’ Perspectives and Attitudes Toward the Use of Gather in Online Classes
Authors: Im Hee-Joo
Published: September 2022

Metaverse has been recognized as an educational platform in the field of education. This study aims to examine perspectives and attitudes of college students to the metaverse platform, Gather, in online English classes. A total of 36 college students participated in the study and completed a survey including demographic information, class satisfaction, and perceptions of Gather. The results showed that participants showed increasingly positive attitudes to Gather during four classes. In addition, students’ satisfaction gradually increased. The advantages of using Gather include interaction, virtual world, and group activities, and the use of avatars. The disadvantages of using Gather include being unfamiliar with the metarverse platform and technical functions. The results imply that metarverse can reduce learners’ anxiety and stress in language learning by providing a virtual world as it allows language learners to interact using online resources and avatars connected with the metarverse platform. Metaverse could play an important role in English education in the future as it can cope with the rapid changes caused by the 4th industrial revolution and non-face-to-face educational environments, although thorough class design is required for it to be successful.
The use of underwater active and passive acoustics to locate and study fishes
Authors: Anthony D Hawkins
Published: September 2022

This paper describes how fish can be located using sound, especially in the sea, but also in rivers and lakes. It describes the use of sound detections, including both passive and active acoustics, and it reviews each of these technologies and shows how they can be used to understand the distribution of sound-producing species and to examine information on the spawning habitats of fishes, and their spawning behavior, and also their movement patterns. Sounds generated by humans can have detrimental effects upon fishes, and some stocks of fishes are exploited close to their safe biological limits, requiring restrictions upon those human activities that may harm them. There is a need to regulate those human activities that have adverse effects on fish.
DETERMINANTS AND MEASURES TO ASSESS FARMERS’ PARTICIPATION IN PARTICIPATORY IRRIGATION MANAGEMENT (PIM) AT THE TAIL-END OF IRRIGATION SCHEMES IN SRI LANKA: A REVIEW OF THE EMPIRICAL EVIDENCE
Authors: Yapa LGDS , Lee Abdullah Anisah , Hemakumara GPTS
Published: September 2022

Assessing the determinants affecting farmers’ participation in Participatory Irrigation Management (PIM) at the farm household level is vital in identifying the root causes of the prevailing problems at the tail-end of irrigation schemes in Sri Lanka, with a view to finding national level remedies to solve the head-tail disparities in sharing water. The main objective of this study is to propose appropriate determinants and measures to assess farming practices in PIM in Sri Lanka while reviewing the spatial and non-spatial factors that affect, whether significantly or otherwise, farmers’ participation in collective activities. A systematic literature review was conducted using PRISMA guidelines. A total of 28 full-text research articles on farmers’ participation in collective action were identified to propose determinants and measures to assess farmers’ participation in PIM. This study identified significant social, economic, managerial, institutional, locational, and physical factors based on previous studies. Addressing the knowledge gap, this study suggests 36 determinants that are helpful to assess the level of farmers’ participation in PIM in Sri Lanka. These include 10 social factors, 6 economic factors, 4 management factors, and 7 institutional factors under the nonspatial category, while 5 of the locational and 4 of the physical factors fall under the spatial category. Moreover, this study ensures consistency between the different measures applied to assess farmers’ participation and recommends the usage of distributional and proportional measures to determine farmers’ participation in PIM in Sri Lanka as well as in other countries where IMT or PIM is being implemented.
Adaptive Control of Two-Pendulum Suspension of Overhead Crane
Authors: Kruglov S. P. , Kovyrshin S. V. , Aksamentov D. N.
Published: September 2022

When constructing the bridge crane control law, a two-pendulum model with a hook suspension, on which the transported load is suspended, and a load suspension is considered. This model more accurately describes the dynamics of cargo movement, which is especially critical in a number of crane operating modes, including cases when the mass-inertial parameters of the cargo are close to the hook. A mathematical model of the two-pendulum mechanical system of the crane suspension along one axis of its movement is described, taking into account the effect of friction forces when moving the crane trolley and wind disturbance acting on the transported cargo. Also, there is presented linearized model of hook movement with control action in the form of preset speed of crane trolley movement. The latter corresponds to the use of a servo motor or stepper motor to control the trolley. On the basis of the obtained linearized model, an adaptive control law is constructed using a scheme including an algorithm for current parametric identification, an implicit reference model, "simplified" adaptability conditions with direct tracking of hook movement (through it — cargo movement) by the properties of the assigned reference model. This control law allows you to build crane control under the current parametric uncertainty of the properties of the crane, the transported cargo and external disturbances (only approximate information about some parameters is assumed). It is shown that in the case when the natural frequency of the assigned reference model is less than that for the hook suspension, the proposed control law generates asymptotic movement of the hook (load) to the assigned point and damping of angular oscillations of the hook suspension and load suspension. For more efficient damping of angular oscillations in case of large values of load moment of inertia, it is proposed to supplement preset value of hook movement with damping movements based on angular movement of load suspension. Model examples supporting theoretical conclusions are given. It is shown that the proposed solution makes it possible to build a bridge crane control under the action of measurement noise and control signal delays.
Development and Research of the Optimal Control System of Electroplated Processes in Multi-Anode Baths
Authors: Solovjev D. S. , Solovjeva I. A.
Published: September 2022

The relevance of increasing the distribution uniformity of the electroplated coating thickness on the surface of details is considered in the article. The analysis of control actions that affect the uniformity of the electroplated coating thickness was carried out, during which preference was given to the use of multi-anode baths. The existing modes of the electroplated process in multi-anode baths aren’t widely used due to the constructive implementation complexity arising from the need to ensure the uniformity of the resulting coating thickness for multi-assortment industries. The authors propose an electroplated process mode, during which the optimal number and anodes size are found, as well as the current and duration of its flow through them, which ensure the alignment of the electric field lines distribution in the electrolyte between the anodes and the coated detail surface. The control system structure (mathematical model, search algorithm, control and actuator) with feedback on the current through the detail surface is designed to implement considered mode optimal control and an algorithm for its operation (based on the PID law and relay control) is proposed. The practical implementation was carried out using the industrial automation software package CoDeSys V2.3 in the programming language FBD. The proposed mode optimal control was found on the example of applying a zinc coating to a Z-shaped detail. As a result of simulation modeling, the control loop was tuned to the squared deviation integral minimum of the setpoint and the correctness of the control system operation algorithm was demonstrated by a relative average coating thickness deviation up to 5 %, which is comparable to the error of modern thickness gauges.
Planning of a Group of Dynamic Systems Operation Program Based on the Failure Time Prediction
Authors: Buryak Yu. I. , Skrynnikov А. А. , Khrulin S. V. , Shaginova Е. S.
Published: September 2022

The article is devoted to the justification of group of dynamic systems (DS) operation program based on the failure time prediction. The following assumptions are made: the group includes DS operating under the same conditions, but having different service life; the composition of the DS includes a number of potentially faulty elements with similar values of reliability indicators; for each element a number of parameters are measured and the failure of the DS occurs when at least one of the controlled parameters leaves the tolerance range. The use of a piecewise linear regression model of parameter drift corresponding to the life cycle of DS is justified. The rule of correction of the linear model is formed based on the results of last measurements of the controlled parameters. A unified algorithm for calculating the reliability characteristics in a group of DS based on the drift of controlled parameters is proposed. At the first step, the probability of failure-free operation for a given time and a gamma-percent resource is calculated for one controlled parameter. At the second step, the time moment of a DS failure (which is assumed to happen when at least one controlled parameter leaves the tolerance range) is calculated. At the third step, the reliability characteristics of a group of DS are predicted using a mixture of distributions. The realization of a random variable corresponding to a random mixture is modeled as follows: first, DS is selected at random, then a random variable is modeled in accordance with its distribution function. The mixture distribution function is expressed as a weighted sum of the component distribution functions. Model examples allowing to rank the considered DS according to the predicted failure time with subsequent adjustment of the operation program are considered.
Gender features of malignant neoplasms associated with human papillo-mavirus in St. Petersburg
Authors: Lyalina L. V. , Kholopov D. V. , Khizha V. V. , Kasatkin E. V. , Topuzov Е. Е.
Published: September 2022

Objective.To study the peculiarities of morbidity and mortality from malignant neoplasms associated with the human papillomavirus among male and female population in a megalopolis. The International Agency for Research on Cancer relates cancer of the oral cavity, tonsils and oropharynx, larynx, anal canal and skin of the perianal region, vulva, vagina, cervix and penis to malignant neoplasms associated with the human papillomavirus.

Material and methods. The analysis of morbidity and mortality was carried out according to the Population Cancer Registry of St. Petersburg for the period 20112020. The structure of the localization of the tumor process, trends and levels of morbidity and mortality from neoplasia associated with papillomavirus infection were studied. The study included information on 13,117 cases of the disease and 7,257 deaths.

Research methods: epidemiological, clinical, statistical methods.

Results. Among all the malignant neoplasms, the proportion of HPV-associated neoplasias was 5.1 % in men and 5.8 % in women (p 0.05). In the structure of morbidity and mortality from HPV-associated tumors, cancer of the oral cavity and larynx occupies the largest share among men, and cervical cancer among women. The incidence of oropharyngeal cancer among the male population is higher compared to the female, the incidence of anal cancer among women is 2.9 times higher and there is an upward trend with higher growth rates (p 0.05).

Conclusions. The established gender differences of HPV-associated malignant neoplasms should be taken into account when justifying the directions for improving dispensary monitoring of patients and vaccination of papillomavirus infection.
Clinical case of severe pseudomembranous colitis caused by pathogenic infection Clostridium Difficile
Authors: Styazhkina S. N. , Kapustin B. B. , Malchikov A. Ya. , Valinurov A. A. , Gabdrakhmanov D. I. , Borisova E. A. , Grichik A. S.
Published: September 2022

Objective. Literature review of pseudomembranous colitis caused by pathogenic Clostridium difficile infection and description of a clinical case of pseudomembranous colitis.

Materials and methods. A clinical case of a patient with pseudomembranous colitis is presented.

Results. In a patient with multiple injuries and grade II shock, whose condition required numerous surgical interventions and intensive antibiotic therapy, after the completion of antibiotic therapy there appeared signs of pseudomembranous colitis loose stools (up to 5 times a day), fever up to 39 C, signs of endogenous intoxication, A C. difficile toxin was found in faeces. Antibiotic-associated colitis was diagnosed; metronidazole 500 mg 3 times a day, activated charcoal, infusion therapy were prescribed on the 12th day, the therapy led to recovery. During the subsequent reconstructive operation, lincomycin 600 mg was administered by infusion for prophylactic purposes, after which, 6 hours later, the patient developed a clinical picture of severe pseudomembranous colitis. A laboratory study of faeces again revealed toxin A C. difficile. The recurrence of the disease required a long-term treatment in the gastroenterology department.

Conclusions. Pseudomembranous colitis is certainly a complex pathology that is a serious hospital-acquired infection. Accurate diagnosis requires correct assessment of the patients condition through clinical and laboratory diagnostic methods, correct prescription of conservative treatment and choice of surgical intervention tactics.
Synthesis and study of psychotropic activity spectrum of 4-aryl-2-benzoylmethylenehydrazono-4-oxobutanoic acids
Authors: Pulina N. A. , Krasnova A. I. , Kuznetsov A. S. , Naugolnykh E. A.
Published: September 2022

Objective. To study psychotropic activity of 4-aryl-2-benzoylmethylenhidrazono-4-oxobutanoic acids, as well as to determine the relationship between the structure of substances and their biological activity.

Materials and methods. The spectrum of psychotropic activity of 4-aryl-2-benzoylmethylenehydrazono-4-oxobutanoic acids was studied on experimental animals using the open field, black-and-white camera, and extrapolation deliverance tests.

Results. Psychopharmacological effects of various severity and direction were revealed. Two compounds showed anxiogenic properties without deterioration in cognitive potential, one substance displayed a trend to anxiolytic activity. The effect of the certain radicals in the structure of the substances on the studied activities was found.

Conclusions. The obtained links between the structure of original compounds and their psychotropic action can be used in further targeted synthesis and search for new domestic pharmaceutical substances with investigated effects in a series of derivatives of 2,4-dioxobutanoic acids.
Complex wound process in cardiac surgery. Tactics of anterior chest wall reconstruction
Authors: Kasatov A. V. , Minasyan V. N. , Arutyunyan V. B. , Vronsky A. S.
Published: September 2022

Objective. The postoperative wound complications are an integral part of the treatment process in any surgical practice. The aim of this work is to optimize the tactics of management and the choice of a method for reconstructing the anterior chest wall of cardiosurgical patients with postoperative sternomediastinitis.

Materials and methods. The development of sternomediastinitis in patients undergoing open heart surgery is the highest risk factor for life. According to many authors, it occurs in 0.511 % of patients, while the fatality of this complication can reach up to 4050 %. This condition develops in a number of patients in a cardiac surgery hospital who have certain developmental predictors.

Results. Thus, in our work, we consider preoperative, intraoperative and postoperative risk factors for the development of sternomediastinitis. Based on all the data studied in the world literature and our own experience, we algorithmized the approach to choosing the tactics of anterior chest wall reconstruction, determined the time frame and gave specific recommendations based on clinical examples, which confirms the practical effectiveness of the proposed methods.

Conclusions. A differentiated approach to the choice of the method of plastic intervention is given, the tactical priority of using muscle flaps or segmental resection of the sternum is substantiated, and the importance of omentoplasty of a chest defect in severe purulent-septic lesions of a large scale is also updated.
Results of the activities of the International Academy of Refrigeration in 2021 and tasks for 2022 (report at the XXIX General Annual Meeting on April 21, 2022)
Authors: Baranenko Aleksandr V.
Published: September 2022

The report provides the results of the activities of the International Academy of Refrigeration in 2021, as well as tasks for 2022, and presents data on the state of the refrigeration industry in the Russian Federation.
The new textbook Automation of Refrigeration Units
Authors: Novikov Ilya V.
Published: September 2022

The new textbook Automation of Refrigeration Units, published by Intermedia (St. Petersburg) in April 2022, presents the program contents of the special subject Automation of Refrigeration Units developed to train students based on the federal state educational standard of higher education. The textbook contains lecture course content from the Department of Refrigeration Machines of the Astrakhan State Technical University and its branch, the Dmitrov Fishing-Industry Technological Institute.

Zhiltsov IB, Novikov IV. Automation of refrigeration units: a textbook. St. Petersburg: Information Center Intermedia, 2022. 258 p. ISBN 978-5-4383-0240-7
Fractal Seismicity and Coulomb Stress Pattern Analysis for 7 January 2020 Mw 6.4 Puerto Rico Earthquake
Authors: Mangalagiri Tejaswini , Chandriyan Haritha , Roy Paresh Nath Singha
Published: September 2022

This study aims to understand the variation of the correlation fractal dimension and static stress changes associated with the 2019 Puerto Rico sequence with special reference to the January 2020 Mw 6.4 mainshock. On examining the seismicity data from 1988 to 2020, we find a shift in the seismicity pattern after the 2019 Puerto Rico sequence. A detailed examination of changes in the correlation fractal dimension (Dc) indicates diffused seismicity throughout the study region until the year 2003 that is demonstrated by relatively high Dc values. Toward the end of 2019, a drastic drop in Dc is observed; it is associated with a tight clustering of events to the south-southwest of Puerto Rico Island (PRI), suggesting the onset of the 2019 sequence. We observed a persistent clustering and significant drop in Dc before the Mw 6.4 earthquake, hinting at the presence of a numerical precursor for this event. Over 30 yr of historical earthquakes have contributed positive Coulomb stress distributions mainly in the northern region of PRI. A deflection in this pattern was reflected after the 2019 Puerto Rico sequence. Based on the static stress analysis, we demonstrated that the Mw 6.4 mainshock was triggered by the 2019 Puerto Rico sequence. The new cluster of events, which contains the Mw 6.4 mainshock, exhibits higher stress levels in the south-southwest region of PRI. The eastern end of Septentrional fault (SF), the zone between SF and North Puerto Rico Slope fault, the middle segment of South Puerto Rico Slope fault, South Lajas fault, Punta Montalva fault, and Central fault are the highly stressed regions at present. Stress perturbation induced by the destructive Mw 6.4 event on the adjacent fault system is a potential threat for PRI, where population density is very high. The combined analysis of Dc and static stress changes indicates the presence of a numerical precursor and highly stressed regions southwest of PRI.
Using Machine Learning Techniques with Incomplete Polarity Datasets to Improve Earthquake Focal Mechanism Determination
Authors: Skoumal Robert J. , Shelly David R. , Hardebeck Jeanne L.
Published: September 2022

Earthquake focal mechanisms are traditionally produced using P-wave first-motion polarities and commonly require well-recorded seismicity. A recent approach that is less dependent on high signal-to-noise exploits similar waveforms to produce relative polarity measurements between earthquake pairs. Utilizing these relative polarity measurements, it is possible to produce composite focal mechanisms for clusters within microseismic sequences using regional networks. However, missing or low-confidence polarity measurements still limit our ability to calculate high-quality composite focal mechanisms. Here, we replaced unreliable polarity measurements with estimates using iterative random forests, an unsupervised ensemble machine learning method. Using the imputed (“replaced”) polarity data, we then categorically clustered the events into families. As a case study, we applied this modified composite mechanism workflow to a multistation template matched catalog of an earthquake swarm that occurred during 2020 near the Maacama fault in northern California. We found that our modified methodology produced higher-quality earthquake families and improved composite focal mechanisms, with fault-plane uncertainties <35° for 94% of the families compared with 34% of families using the previous methodology.
Earthquakes in the Shadows: Why Aftershocks Occur at Surprising Locations
Authors: Hardebeck Jeanne L. , Harris Ruth A.
Published: September 2022

For decades there has been a debate about the relative effects of dynamic versus static stress triggering of aftershocks. According to the static Coulomb stress change hypothesis, aftershocks should not occur in stress shadows—regions where static Coulomb stress has been reduced. We show that static stress shadows substantially influence aftershock occurrence following three M ≥ 7 California mainshocks. Within the modeled static Coulomb stress shadows, the aftershock rate is an order of magnitude lower than in the modeled increase regions. However, the earthquake rate in the stress shadows does not decrease below the background rate, as predicted by Coulomb stress change models. Aftershocks in the stress shadows exhibit different spatial–temporal characteristics from aftershocks in the stress increase regions. The aftershock rate in the stress shadows decays as a power law with distance from the mainshock, consistent with a simple model of dynamic stress triggering. These aftershocks begin with a burst of activity during the first few days after the mainshock, also consistent with dynamic stress triggering. Our interpretation is that aftershock sequences are the combined result of static and dynamic stress triggering, with an estimated ∼34% of aftershocks due to dynamic triggering and ∼66% due to static triggering.
Pengaruh Model The 5E Learning Cycle terhadap Penguasaan Konsep dan Penyelesaian Masalah Pecahan Siswa Kelas V Sekolah Dasar
Authors: Agustin Khorid , Hadi Syamsul , Yuliati Lia
Published: September 2022

Abstract: The study aims to determine the effect of the application of The 5E Learning Cycle model rather than conventional model on mastery of concepts and problem solving fractions of fifth grade elementary school students. The research is using experimental method. The research population is all group learning in class V SDN Tunjungsekar. The sample of study consisted of 2 classes, Va and Vb classes. This study uses essay tests to collect data. The data uses Basic Competencies 3.1 and 4.1 about addition operations of fractions with different denominators. All data were processed and analyzed using statistical techniques. The results showed that there was a significant influence on the application of The 5E Learning Cycle learning model rather than conventional learning on the mastery of concepts and problem solving in the fifth grade students of SDN Tunjungsekar 01 Malang.
Abstrak: Penelitian bertujuan untuk mengetahui adanya pengaruh penerapan model The 5E Learning Cycle daripada model konvensional terhadap penguasaan konsep dan penyelesaian masalah pecahan siswa kelas V SD. Metode eksperimen dipergunakan dalam penelitian ini. Populasi penelitian yaitu seluruh rombongan belajar kelas V SDN Tunjungsekar 01. Sampel penelitian terdiri dari dua kelas, yaitu siswa kelas Va dan Vb. Penelitian menggunakan tes essay untuk mengumpulkan data. Data yang dikumpulkan berupa skor hasil tes pecahan Kompetensi Dasar 3.1 dan 4.1 tentang operasi penjumlahan pecahan dengan penyebut berbeda. Data yang diperoleh selanjutnya dianalisis dengan mempergunakan teknik statistik. Hasil penelitian menunjukkan bahwa ada pengaruh yang signifikan pada penerapan model The 5E Learning Cycle daripada model konvensional terhadap penguasaan konsep dan penyelesaian masalah pecahan siswa kelas V SDN Tunjungsekar 01 Malang.
Pengembangan Media Interaktif Tema “Sehat itu Penting” untuk Meningkatkan Literasi Digital pada Kelas V Sekolah Dasar
Authors: Rahmah Rela , Susilo Herawati , Yuliati Lia
Published: September 2022

Abstract: This research aims to develop products in the form of interactive media to improve digital literacy in students. This type of research is research and design with ADDIE models. Products are developed with regard to validity, practicality and effectiveness criteria. Effectiveness data was taken from large-scale trials on grade V students of 3 meetings using digital literacy observation sheets. The results found that there was an increase in digital literacy of 38% form the first meeting to the last meeting.
Abstrak: Penelitian ini adalah bertujuan untuk mengembangkan produk berupa media interaktif untuk meningkatkan literasi digital pada siswa.  Jenis penelitian ini adalah research and design dengan model ADDIE. Produk dikembangkan dengan memperhatikan kriteria kevalidan, kepraktisan dan keefektifan. Data keefektifan diambil dari uji coba skala besar pada siswa kelas V sebanyak tiga pertemuan mengguankan lembar observasi literasi digital. Hasil didapatkan bahwa terjadi peningkatan literasi digital sebanyak 38% dari pertemuan pertama ke pertemuan terakhir.
Analisis Model Mental Peserta Didik SMA dalam Memahami Konsep Laju Reaksi
Authors: Sodanango Priska Yohanita , Munzil Munzil , Sumari Sumari
Published: September 2022

Abstract: Reaction rate is concept that involves abstract concepts, chemical phenomena, mathematical operations, and practical activities. The characteristics of it require students to have the ability to think scientifically, understand chemical representations, and have good mathematical and practical skills. Based on several research studies, most of the students missed these four abilities, so the concept of reaction rate is considered difficult and affects students' mental models. It is necessary to analyse students' mental models to see the description of students' mental models in understanding chemical concepts. The purpose of this research was to specify the kind and relationships of student’s mental models in understanding the concept of reaction rate.
Abstract: Teori laju reaksi melibatkan konsep abstrak, fenomena kimia, operasi matematik, dan praktikum. Karakteristik konsep mengharuskan peserta didik untuk memiliki penguasaan bernalar ilmiah, memahami representasi kimia, keterampilan aritmetika dan praktikum secara benar. Beberapa studi penelitian mencatat, keempat kemampuan ini belum dikuasai oleh peserta didik, sehingga konsep laju reaksi dianggap sukar dan mempengaruhi model mental peserta didik. Perlu dilakukan analisis model mental peserta didik untuk melihat gambaran model mental peserta didik dalam menguasai konsep kimia. Tujuan penelitian ini adalah untuk mengetahui ragam dan hubungan model mental peserta didik dalam memahami konsep laju reaksi.