bluuebunny/crossref_metadata_2025 huggingface dataset:
Hva kan arves? Om skyld, vold og seksualitet i to nordiske krigsminneromaner
Authors: Langås Unni
Published: July 2023

During the last two decades, an increasing focus on perpetrators has emerged in Scandinavian literature. This so called perpetrator fiction, with an explicit intention of understanding evil, has portrayed the Nazis and their henchmen in detail. These are frequently described in familial relationships, and their stories are told from a second or third generational point of view. Interestingly, the perpetrators are regularly depicted as perverse persons and their deviant sexuality as part of the problem. In this article, I discuss two Scandinavian novels with the family as a narrative structure and the perpetrator as its main character. The novels Jeg har arvet en mørk skog (2012) by Morten Borgersen and Stormen. En berättelse (2016) by Steve Sem-Sandberg deal with wartime events seen from a present-day I-narrator’s point of view. Both novels incorporate mythology and perverse sexuality, and they ask provocative questions about the causes of wartime violence.
Listening to the Enemy: Challenging The National Narrative of World War II in Contemporary Norwegian Fiction
Authors: Torjusen Henrik
Published: July 2023

This article analyses five Norwegian novels that all incorporate German soldiers’ experiences as an important part of the Norwegian story of World War II. Abandoning the strong focus on antagonistic relationships of previous narratives, the five novels analysed in this article represent a new approach to the history of the war that aims to view the enemy through what Bull and Hansen (2016) have called agonistic memory, which includes the perspective of the perpetrator to understand conflicts.Previously, when Norwegian authors included German soldiers in narratives about World War II, it was part of a general portrait of the enemy. The individual soldier has few distinct features and no independent identity. These portraits followed the hegemonic Norwegian narrative of the occupation: The good Norwegians, who were part of the home front, versus the Germans and the morally inferior Norwegians who supported them. However, in the last ten years, several novels have revisited the war narrative through representations of previously neglected groups, one of which is the German soldier. The five novels have quite different approaches, but they all question the traditional Norwegian war narrative through complex representations of the enemy. My analysis of the five texts will identify how the texts challenge the conventional history of the occupation through an agonistic perspective that aims to revisit how the war is remembered. These representations of the German soldiers are a central part of the new examination of the long shadows cast by the memories of war in Norway.
«Å utsette den andre døden»: Snublesteiner i norsk litteratur
Authors: Drozdowska Karolina
Published: July 2023

The trauma of the Second World War and the Holocaust has been a broadly explored topic in Norwegian culture in the last ten–fifteen years. This, in turn, resulted in a massive popularity of both fiction and non-fiction literature where the topic is prominent, as well as a growing interest in postmemory studies among literary scholars. This paper discusses the motif of Stolpersteine in three Norwegian literary texts, published between the years 2016 and 2019: two novels, No, a Hundred Times No by Nina Lykke, Keep Saying Their Names by Simon Stranger and one essay, “Snublesteinene i Oslo” [“Stoplersteine in Oslo”] by Ole Robert Sunde, published in an anthology entitled The Homeland & Other Stories. Stolpersteine (“stumbling stones”) are commemorative brass plaques in the pavement in front of the last address of victims of National Socialism. This remembrance project was started by the German artist Gunter Demnig in the 1990s and there are now tens of thousands of “stones” placed in over a thousand locations in Europe, also in Norway. The aim of this paper is to answer two questions: firstly, what formal function the motif plays in the three chosen texts and, secondly, how can Stolpersteinene become bearers of memory and postmemory, according to the theoretical framework developed around the topic of war and trauma.
Lidelse og frigjøring: TV som minneaktør i 70- og 75-årsmarkeringene av den siste krigsvinteren i Nord-Norge
Authors: Lindøe Siri Hempel
Published: July 2023

In this article, I compare two tv-programs about the ending of WWII in northern Norway, aired by the Norwegian Public Broadcaster (NRK). The first one was sent from Tromsø October 31st 2014, with the title, “The Autumn they lost everything,” and marked the 70 years anniversary of the forced evacuation of the people, as almost all houses in Finnmark and Northern Troms were burnt down when the Nazis retreated from the area after being defeated by the Red Army. The second was aired from Kirkenes five years later, in 2019, marking the 75 years anniversary. The title was “Saved by the Russians,” as the celebration of the heroism of the soldiers and the relationship between Russia and Norway were the main topics.The structure of the analysis concentrates on three aspects of the programs. First, I look at the ways tv-resources are being used in each of them, focusing on the host style and the aesthetics of the live studio. Secondly, I show how the programs express a northern identity by addressing critical perspectives on the main national story of WWII and the lack of support from Norwegian authorities for the people in the north during the autumn and winter of 1944/45. The third aspect concerns the ways memories of the war are being connected to contemporary issues. In 2014 this is the refugee situation in Europe, whereas the program in 2019 discusses the value of memory culture in relation to political controversies about Norway’s defence strategy in the north vis á vis Russia. By following these three aspects of the tv-programs, the analysis sheds light on their functions as memory agents situated in a particular media context, in which the regional perspective on WWII is being negotiated within the framework of national public television.
Stig Sjödin och minnets politik
Authors: Nilsson Magnus
Published: July 2023

The aim of this article is to analyse the attitudes to history and memory expressed in the working-class poetry of Stig Sjödin (1917–1993) – both in Sotfratgment (Fragments of Soot) from 1949, which marked his breakthrough as a poet, and in the poetry he wrote for the labour movement (mainly poems published in tradeunion membership magazines or read at meetings and congresses) – and to discuss how he and his poetry are today viewed as reminders of political ideals and experiences threatened by oblivion. There are certain differences between how memory and remembering is treated in Sotfragment and in Sjödin’s labour-movement poetry respectively. In Sotfragment, focus is more often on individual memories and existential problems, whereas in the labour-movement poetry, Sjödin is sometimes more explicitly political and writes about collective memories from a proletarian perspective. These differences are conditioned by differences between the spheres to which the poems belong: that of literature and that of the labour movement. In connection with the rise of left-wing radicalism in Sweden during the 1960s and 1970s, Sjödin argued that older working-class literature contained important political experiences and perspectives. This is also how his works are sometimes viewed today, both by working-class writers and by political commentators. Thereby, it is emphasized that literature is not a passive medium for the preservation of memories, but that it can also transform them and make them politically relevant.
Динаміка швидкохідних суден: світові тенденції та перспективи
Authors: Воропаєв Геннадій Олександрович
Published: July 2023

У доповіді проаналізовано сучасне ставлення до проблем гідродинаміки швидкохідних суден та методи їх вирішення з комплексним застосуванням динамічних принципів підтримки та багатокорпусності суден. Наведено результати досліджень, на яких зосереджує свої наукові пошуки Інститут гідромеханіки НАН України і які є базою для вирішення фундаментальних та прикладних проблем гідродинамічного опору суден за великих чисел Фруда і Рейнольдса на основі подальшого розвитку теорії і методів експериментального дослідження та створення ефективних методів розрахунку гідроаеродинамічних характеристик швидкісних суден в умовах реального хвильового впливу.
Національна культурно-мистецька спадщина: проблеми збереження та академічної наукової презентації
Authors: Скрипник Ганна Аркадіївна
Published: July 2023

У доповіді наголошено, що повномасштабна російська військова експансія, яка спричинила непоправні людські втрати та завдала руйнівних наслідків національній природній і культурній спадщині, актуалізувала перед державою завдання щодо гарантування правового захисту і забезпечення на рівні міністерств та спеціальних урядових інституцій невідкладного вирішення прикладних пам’яткоохоронних проблем як пріоритетних у сфері національної культурної політики.
Curriculum Evaluation of Islamic Elementary Teacher Education Programs in Indonesia
Authors: Fauzan Fauzan
Published: July 2023

AbstractFrom the Indonesian National Qualifications Framework (KKNI) perspective, each study program should be able to present itself with the “graduate profile” obtained through tracer study activities, feasibility studies and needs analysis in the community. The graduate profile must at least reflect abilities that refer to four aspects of needs (1) attitude, (2) knowledge, (3) general skills; and (4) special skills. The four abilities are translated into a learning outcome (learning outcome) in each course in the study program. Thus, all learning plans or Semester Learning Plans should be based on learning outcomes (learning outcomes) following the needs of the graduate profile. This study aims to evaluate the readiness of the Islamic Elementary Teacher Education study program in Indonesia to implement the current curriculum policy, called the Indonesian National Qualification Framework. This study follows a mixed-method research design by undertaking an evaluation study. Moreover, the data were collected through a literature study, document study, questionnaire, and interview. Twenty-one departments were analysed, involving seventeen state and four private universities. This study provided some noteworthy findings, one of which is to measure how much the readiness of programme directors to implement new policies.AbstrakDari perspektif Kerangka Kualifikasi Nasional Indonesia (KKNI), setiap program studi harus dapat mempresentasikan dirinya sendiri dengan "profil lulusan" yang diperoleh melalui kegiatan studi tracer, studi kelayakan, dan analisis kebutuhan di masyarakat. Profil lulusan harus setidaknya mencerminkan kemampuan yang mengacu pada empat aspek kebutuhan (1) sikap, (2) pengetahuan, (3) keterampilan umum; dan (4) keterampilan khusus. Keempat kemampuan tersebut diterjemahkan menjadi hasil belajar (learning outcome) dalam setiap mata kuliah dalam program studi. Dengan demikian, semua rencana pembelajaran atau Rencana Pembelajaran Semester harus didasarkan pada hasil belajar (learning outcome) mengikuti kebutuhan profil lulusan. Studi ini bertujuan untuk mengevaluasi kesiapan program studi Pendidikan Guru Madrasah Ibtidaiyah di Indonesia untuk menerapkan kebijakan kurikulum saat ini, yang disebut Kerangka Kualifikasi Nasional Indonesia. Studi ini mengikuti desain penelitian campuran dengan melakukan studi evaluasi. Selain itu, data dikumpulkan melalui studi literatur, studi dokumen, kuesioner, dan wawancara. Dua puluh satu departemen dianalisis, melibatkan tujuh belas universitas negeri dan empat universitas swasta. Studi ini memberikan beberapa temuan yang mencolok, salah satunya adalah mengukur seberapa besar kesiapan direktur program untuk menerapkan kebijakan baru.How to Cite : Fauzan. (2022). Curriculum Evaluation of Islamic Elementary Teacher Education Programs in Indonesia. TARBIYA: Journal of Education in Muslim Society, 9(2), 149-162. doi:10.15408/tjems.v9i2.14869.
MEASUREMENTS AGAINST NOISE BACKGROUND AND WITH FLUCTUATIONS
Authors: Ignatkin V.U. , Dudnikov V.S. , Alekseenko S.V. , Yushkevich O.P.
Published: July 2023

When performing non-contact and remote measurements of various parameters, additional obstacles arise due to the influence of the intermediate medium and the measuring path between different links of the measuring system. These obstacles include:

Noises arising in communication paths, intermediate media, complexes of measuring and auxiliary equipment. These noises are superimposed on the useful signal and distort it.

Fluctuations of the general and selective energy absorption of the useful signal in the intermediate medium and measuring communication path. In all these cases, it is necessary to isolate the useful signal and restore its original true value and nature of non-stationarity.

The task of filtering in its general form has not been completely solved until now. In order to obtain maximum information about the useful signal, such an operator L is selected that the function Y(τ)=L[X(τ)] slightly differs from the useful signal U(τ), where X(τ)= U(τ)+ V(τ ); V(τ) is noise (interference). To determine the values of the function Y(τ) at a certain time τ_0, all previous values of the function X(τ) from the interval -∞≤τ≤τ_0 should be used. To distinguish the functions Y(τ) and U(τ) the variance of the difference of these functions is used. The problem of Wiener filtering has been solved by various authors, in particular the Kalman-Busy filter equation for linear Gaussian systems. Optimal (suboptimal) Bayesian filters are constructed for a nonlinear stochastic system disturbed by "white" Gaussian noise with continuous time and discrete measurements that minimizes the root-mean-square error of estimation. The exact solution of this problem in the interval between the moments of measurement results is subject to the Fokker-Planck differential equation with private derivatives.

Considered examples: measuring the temperature and pressure of the environment under investigation, distorted by various random factors in the form of "white" noise, as well as tracking the coordinates and velocities of an aircraft performing a maneuver in the horizontal plane - as test tasks in the construction of a sigma-point Kalman filter - as a multi-cube Kalman filter.
SELECTION OF MANDREL TYPE FOR WINDING ROCKET ENGINE CASINGS
Authors: Karpovich I.I. , Myhovych Y.S.
Published: July 2023

The work provides an analysis of existing types of mandrels with an explanation of their application features, advantages, and disadvantages. In the technology of winding, the mandrel plays a crucial role in determining the method of obtaining products from polymer composite materials. Various types of non-detachable and detachable mandrels are considered. Their advantages, disadvantages, and limitations for their use are discussed depending on the dimensions of the manufactured product, its configuration, weight, winding technology, and production type. General requirements for mandrels are established regardless of the type of manufactured product. The article recommends using additive technologies for the production of prototype mandrel samples, which are used for both assembly of mandrel assemblies and winding technologies with minimal cost of funds, resources, and materials. The methodology of manufacturing a mandrel using the CoPET method of 3D printing is provided. The results of the conducted analysis are presented in the form of a table of technical and economic indicators for the production of mandrel types for winding solid-fuel rocket engine cases.
Hemiparetik ve kuadriparetik serebral palsili çocukların erken motor repertuarlarının karşılaştırılması
Authors: KAHRAMAN Aysu , LİVANELİOĞLU Ayşe
Published: July 2023

Amaç: Serebral palsili (SP) çocukların motor performansı, etkilenim şiddetine bağlı olarak farklı derecelerde bozulmaktadır. Bu çalışmanın amacı hemiparetik ve kuadriparetik SP’li çocukların erken motor repertuarlarını karşılaştırmaktı.

Yöntem: Çalışmada 10 hemiparetik, 22 kuadriparetik SP’li çocuğun düzeltilmiş 3-5 aylık yaşlarda çekilmiş videoları geriye dönük olarak fidgety hareketler, yaşına uygun hareket repertuarı, hareket paternleri, postüral paternler ve hareket karakteri açısından ayrıntılı General Movements analizi ile değerlendirildi. Bu değerlendirmenin sonucunda Motor Optimalite Skorları (MOS) hesaplandı.

Bulgular: Hemiparetik SP grubu doğum kiloları 1055-3140 gram, doğum yaşları 25-39 hafta arasında değişen 5 kız ve 5 erkekten oluştu. Kuadriparetik SP grubu doğum kiloları 660-3570 gram, doğum yaşları 25-40 hafta arasında değişen 14 kız ve 8 erkekten oluştu. Bebeklerin hiçbiri normal fidgety harekete sahip değildi. Hemiparetik SP’li çocukların MOS’ları kuadriparetik SP’li çocuklardan daha yüksekti (p=0.036).

Sonuç: Hemiparetik SP’li çocuklar erken motor repertuar açısından kuadriparetik çocuklara göre daha iyi durumdadır. MOS vücut etkilenimi açısından farklı SP tiplerini tahmin etmede etkin bir değerlendirme yöntemi olabilir.
Género y extractivismo minero en México: repercusiones socioambientales para las comunidades rurales
Authors: Rivera-Ramírez Juan Manuel , Herrera- Monroy Sonia
Published: July 2023

Durante las últimas décadas, los espacios rurales de América Latina y, en particular nuestro país, han padecido un acelerado extractivismo minero a causa del incremento del precio de los metales. Por ello, el objetivo del presente análisis es documentar y describir los impactos sociales, políticos, culturales y ecológicos que las comunidades rurales han sufrido a causa de la explotación minera. Bajo los supuestos del enfoque cualitativo de investigación, así como del método dialéctico y la perspectiva de género feminista como principales referentes teóricos, se concluye que la minería en México corresponde a un modelo extractivista que se apropia de los recursos naturales no renovables, utiliza a las y los habitantes del medio rural como mano de obra barata y acrecienta las desigualdades de género al organizar un nuevo orden patriarcal que aumenta la vulnerabilidad de las mujeres. Finalmente, la extracción de grandes cantidades de agua y la subsecuente contaminación de mantos freáticos, la polución de suelos con metales pesados, diversos tipos de enfermedades que aquejan a las poblaciones rurales, al igual que incontables conflictos sociales entre las comunidades y las empresas mineras, serían algunas de las consecuencias de dicho modelo en México.
Adaptación y conservación de la diversidad biocultural en dos comunidades de Tamiahua, Veracruz
Authors: Palma-Cabrera Esther Mireya , Marín-Muñiz José Luis , Sámano-Rentería Miguel Ángel
Published: July 2023

Contrarrestar los efectos del cambio climático por medio de la conservación de los humedales naturales, ha sido una propuesta para minimizar la problemática a nivel internacional. Por tanto, el objetivo de esta investigación es describir cómo a través de la adaptación de dos comunidades indígenas nahuas se está salvaguardando la Laguna de Tamiahua, en Veracruz, México (sitio Ramsar); contribuyendo a conservar su bioculturalidad. Se consideró una metodología cualitativa, con base en herramientas etnográficas y análisis de archivo histórico. Una vez recabada la información se clasificó y analizó para describir el proceso de adaptación que han vivido los habitantes de las localidades. Se concluyó que las actividades productivas y el aprovechamiento de los recursos naturales se han adaptado según las necesidades de las sociedades. La conservación sustentable del ecosistema y la bioculturalidad son resultado de la resiliencia de las comunidades que se adaptan a un ecosistema desconocido como la Laguna de Tamiahua.

Palabras clave: Cambio climático, conservación de la naturaleza (Tesauros); adaptabilidad y bioculturalidad (palabras clave del autor).
Effects of Cashew Nut Shell Liquid on Hindgut Fermentation and Microbiota of Chickens
Authors: M Hosokawa , C Hikita , Y Suzuki , S Koike , Y Kobayashi
Published: July 2023

Cashew nut shell liquid (CNSL), a feed additive for chickens, was evaluated for its influence on the hindgut environment by determining fermentation and bacterial profiles using cecal contents, fecal slurry and pure cultures. A farm-scale study showed that CNSL feeding to broiler chickens from 0 to 42 days of age improved body weight gain and lowered mortality. Cecal levels of short chain fatty acids increased with CNSL feeding, while ammonia and indole levels decreased. Feeding CNSL decreased the relative abundance of cecal bacteria belonging to some clostridial groups and Ruminococcaceae. In particular, Clostridium perfringens was undetectable following CNSL feeding. A pure culture study showed that CNSL (≥ 6.25 μg/ml) inhibited C. perfringens growth, accompanied by cell surface disruption based on electron microscopic observation. Fermentation profiles of slurry cultures prepared from feces of chickens were altered by CNSL supplementation toward less ammonia production. The lowered ammonia was correlated positively with the abundance of unclassified Lachnospiraceae and unclassified Ruminococcaceae, and negatively with unclassified Enterobacteriaceae and Sutterella. These results suggest that CNSL could exert its beneficial influence on the hindgut health of chickens through impacting the microbiota.
STRESS-STRAIN STATE SIMULATION OF AN UNDERGROUND LIQUEFIED NATURAL GAS PIPELINE
Authors: Shammazov I. A. , Karyakina E. D. , Shalygin A. V.
Published: July 2023

In recent years, there has been a steady development of systems for the production of small-scale liquefied natural gas for gas supply to remote consumers in cases where the possibilities of pipeline construction are limited. In addition, there is a tendency to use liquefied gas to replace liquid hydrocarbon fuels (gasoline, kerosene, gasoil, fuel oil). Due to the growth and emergence of new industries for liquefied natural gas consumption, the infrastructure necessary for its production, transportation and storage is being developed. 

The article presents an analysis of the use of the most common polymers for the pipeline construction in the oil and gas industry. The possibility of using ultra-high molecular weight polyethylene for the construction of process lines for pumping cryogenic liquids was considered. The results of experimental studies on tensile strength test and Charpy impact strength test after exposure to liquid nitrogen are presented. As a result of tensile strength tests, an increase in the strength properties of the material was observed while maintaining its plasticity. The breaking stress was 37.7 MPa, the yield strength was 27.1 MPa at liquid nitrogen temperature, while at ambient temperature, the specimen failed at 26.9 MPa, the yield strength was 20.2 MPa. The specimens, tested for impact strength by the Charpy method, after exposure for 2 h in liquid nitrogen, a certain margin of plastic properties was also showed. The stress-strain state of a liquefied natural gas pipeline made of ultra-high molecular weight polyethylene in an insulating coating was simulated using the ANSYS Mechanical software package, taking into account its thermal interaction with the soil. The maximum equivalent stress in the model was 14.4 MPa, with calculated value of 12.7 MPa, which does not exceed the yield point of the material. Thus, ultra-high molecular weight polyethylene can be considered as a promising material for use at cryogenic temperatures.
CALCULATION OF NORMAL TEMPERATURE DIFFERENCE ON MAIN GAS PIPELINES WITH LONG SERVICE LIFE
Authors: Yarovoy A. V. , Islamov I. M. , Askarov G. R. , Kitaev S. V. , Askarov R. M.
Published: July 2023

In the global pipeline transport, including main pipelines (MР) with a long service life (40 years or more), the reliability of operation is ensured by compliance with regulatory requirements. Calculations of the stress-strain state of gas pipelines, in particular, longitudinal stresses, are carried out in accordance with Standart SP 36.13330.2012 «Main pipelines», which does not take into account the life of the facilities.

The analysis of SP 36.13330.2012 «Main pipelines» for the effect of the temperature factor on the magnitude of the longitudinal stresses of the gas pipeline section showed that the calculation of longitudinal stresses from the temperature difference ∆Т provides for taking into account four values: Тс – maximum and minimum temperatures during construction; Tр – the highest and lowest temperatures during operation.

When considering the stages of construction of gas pipelines, it was established that during this period the pipeline experiences the action of four temperature regimes, and when put into operation, the fifth complex one: from the temperature and pressure of the gas, at which the consolidation of the main pipeline with the surrounding soil occurs predominantly in during which the linear-altitude position of the MР section with a minimum of stresses is predominantly formed.

It has been proved that, in relation to the calculations of longitudinal stresses of gas pipelines with a long service life, it is necessary and sufficient to limit the calculated temperature difference by Tр.

SP 36.13330.2012 is intended for calculations during the construction of new pipelines, and its use for long-term operated gas pipelines, taking into account the standard value of ∆Т, mainly leads to rejection, and, therefore, to repair.

We believe that for the operation of MР with a long service life, for the calculation of thermal stresses, it is necessary to develop a standard that allows the calculation of the temperature difference ∆Т by the value of the operating temperature Tр.
STUDY OF THE METHOD OF DRILLING WASTE WATER TREATMENT FROM MECHANICAL IMPURITIES BY SEDIMENTATION AND FILTRATION
Authors: Gamm T. A. , Grivko E. V. , Gamm А. A.
Published: July 2023

The problem of treatment of drilling wastewater from mechanical impurities and its reuse for technological process is unresolved. The study summarizes results of researches in drilling wastewater treatment methods. It is relevant for areas of extraction of hydrocarbon raw materials. The authors suggest applying a scheme of treating drilling wastewater from mechanical impurities consisting of two stages of purification – sedimentation and filtration through various materials for loading filters: sawdust, peat, soil (medium loam), ash, starch, household dust (a mixture microorganisms), charcoal, gauze, polyester wadding (lighat, voluminous, elastic nonwoven fabric), foam rubber (soft cellular synthetic foam with high elasticity and breathability). Soil, ash, starch, peat and coal were cleaned from impurities and ground to a fine state. Eleven individual materials and their various combinations were studied as filter loads. The tests were replicated three times. Untreated drilling wastewater served as a control background sample for calculating efficiency. The possibility of wastewater treatment by sedimentation and subsequent filtration using industrial waste as a loading material for filter was researched. It was found out that treatment efficiency increases when wastes used in filters are grinded to microparticles.
CARBON DIOXIDE UTILIZATION BY PRESSURIZED CONCRETE MIXER
Authors: Zalyatdinov A. A. , Sadreeva R. Kh. , Zakirova R. F.
Published: July 2023

Concrete production is one of the most power consuming processes in construction, which emits large amounts of CO2. The use of utilized carbon dioxide in concrete production can reduce the carbon trace of concrete production and therefore reduce its negative impact on the environment.

The relevance of CO2 utilization in concrete production is due to several factors:

1. Environmental issues: Concrete production is one of the largest sources of carbon emissions. Therefore, the search for ways to reduce carbon emissions, including by CO2utilization, is relevant and obligatory.

2. Consumer Interest: An increasing number of consumers are oriented on environmentally friendly products and services, so the use of utilized CO2 in concrete production can increase the product attractiveness.

3. Starting the transition to a low carbon emitted economy: Due to growing global trendto carbon emission reduction, many countries and organizations are transiting to a low carbon emitted economy. New technologies such as the use of utilized CO2 in concrete production can contribute to this transition.

The aim of research: the development of a pressurized concrete mixer.

Object of research: concrete mixture with CO2.

The article describes the design, principle of operation and schemes of a concrete mixer operating under pressure. This device was designed at the Almetyevsk State Institute in the laboratory of the Center for Scientific and Technical Research to conduct an experiment on concrete carbonization.
RATIONALE FOR CHOOSING CORRELATIONS FOR GAS HYDRATE FORMATION TEMPERATURE COMPUTATION FOR GASES OF VARIOUS COMPOSITIONS
Authors: Malyshev V. L. , Moiseeva E. F.
Published: July 2023

Gas hydrates are the object of continuous research in the oil and gas industry. Gas hydrates can form in gas production systems: in the bottomhole zone, in the wellbores, in plumes and infield reservoirs, in gas treatment systems, as well as in main gas transport systems, causing serious problems associated with the disruption of these processes. However, recently, the gas industry has found new uses for hydrates (for example, energy recovery, separation, storage, and transportation of gas) prompting scientists to conduct new and more detailed studies of the hydrate formation process.

Understanding the conditions and mechanisms of hydrate formation makes an engineer able to control this process. Therefore, in practice, simplified models are often required to predict hydrate formation. This paper presents various correlations that are widely used in the oil and gas industry to determine the temperature of hydrate formation. The accuracy of the presented models is compared. The influence of the features of the gas composition on the conditions for the hydrates formation is studied.

It is shown that for the considered gases, the most accurate results can be obtained using the G.V. Ponomarev correlation. When the relative density of gases is greater than 0.6, it is possible to use the Towler and Bahadori correlations. Correlations proposed by Hammerschmidt, Mottie and Berge show the worst results.

Since the temperature of hydrate formation in the considered correlations does not depend on the gas composition, but only on the relative density, the influence of the content of non-hydrocarbon components on the temperature of hydrate formation was studied in this work. It was found that the content of hydrogen sulfide has the greatest influence. Moreover, at high contents of hydrogen sulfide in the gas composition, the temperature of hydrate formation shifts towards higher values. The content of nitrogen and carbon dioxide to a lesser extent affect the value of the temperature of hydrate formation.
Variación altitudinal de las comunidades de larvas de Chironomidae (Insecta: Diptera) en un río de la Sierra Nevada de Santa Marta, Colombia
Authors: Bejarano Narváez Mario Javier , Tamaris Turizo Cesar Enrique , González Trujillo Juan David , Prat Fornells Narcis
Published: July 2023

Los insectos acuáticos son uno de los grupos biológicos más abundantes e importantes en el funcionamiento de los ecosistemas acuáticos. Dentro de los insectos se encuentra el orden Diptera, el cual incluye a la familia Chironomidae, un grupo que se caracteriza por su alta diversidad y abundancia en los ecosistemas tropicales de agua dulce. Sin embargo, existe poca información sobre el conocimiento de su distribución a lo largo de gradientes altitudinales. Objetivo: Describir la diversidad taxonómica y distribución altitudinal de los géneros de la familia Chironomidae en la cuenca del río Gaira (Sierra Nevada de Santa Marta). Metodología: Se realizaron 8 muestreos en tres sitios a lo largo de un gradiente altitudinal (60, 900 y 1700 m) entre el 2018 y 2019, cubriendo los periodos secos y lluviosos. Las muestras de bentos se recolectaron con una red Surber en los sustratos grava y sedimento, y mediante colecta manual en los sustratos hojarasca y piedra. Resultados: Se recolectaron en total 1319 larvas, distribuidas en tres subfamilias (Chironominae, Orthocladiinae y Tanypodinae). La subfamilia Orthocladiinae presentó la mayor abundancia (59%), seguida de Chironominae (38%) y Tanypodinae (3%). La estación La Victoria (900 m) presentó el mayor número de individuos (708) y el mayor número de géneros (12), mientras que estación La Cascada (1700 m) mostró las abundancias más bajas (221 individuos) y la menor riqueza de géneros (8). Los géneros con mayores abundancias fueron Cricotopus, Onconeura, Parametriocnemus y Polypedilum, mientras que Chironomus, cf. Manoa y Riethia reflejaron menores abundancias en el estudio. Alcance: Dentro del material colectado, se reportaron 14 géneros que constituyen nuevos registros para la cuenca del río Gaira, norte de Colombia. Conclusiones: Los resultados de esta investigación contribuyen al reconocimiento de la diversidad de quironómidos en el departamento del Magdalena y proporcionan evidencia adicional para afirmar que la Sierra Nevada de Santa Marta es un importante reservorio de biodiversidad poco explorado.
Redescubrimiento de Anaeomorpha splendida splendida Rothschild, 1894 para Colombia y notas sobre Zaretis syene (Hewitson, 1856) (Nymphalidae: Charaxinae)
Authors: Gantiva Quintero Carlos Hernán , Henao Bañol Efraín Reinel
Published: July 2023

El presente artículo reporta el redescubrimiento para Colombia de dos raras especies de ninfálidos charaxinos: Zaretis syene (Hewitson, 1856) y Anaeomorpha splendida splendida Rothschild, 1984. De esta última se divulga por primera su fotografía en vivo en su medio natural, que no se conocía. Se suministran además algunos datos de distribución y ecología para las dos especies.
Aproximación a la estructuración ecológica de la comunidad de lagartijas Anolis Daudin, 1802 (Squamata: Dactyloidae) de los bosques secos de los Montes de María en el Caribe colombiano
Authors: Ortega De la Rosa Ricardo José , Moreno Arias Rafael Ángel , Martínez Hernández Neis José
Published: July 2023

En los bosques secos tropicales (BST), los Anolis son el grupo de lagartos que presentan los valores más altos de abundancia y diversidad en algunos tipos de hábitat, sin embargo, la información y el conocimiento que se tiene sobre este grupo y sus interacciones ecológicas aún es escasa. Se registró información sobre el uso de recursos espaciales y alimenticios de cinco especies de estas lagartijas, con el fin de realizar un análisis unificado de traslape de nicho en tres coberturas del suelo (bosque de ribera, interior de bosque y vegetación abierta) en la vereda la Flecha, San Jacinto, Bolívar. Se encontró que, tanto en la época seca como en lluvias, los valores de traslape alimenticio fueron menores que para los recursos espaciales, resultados que favorecen la hipótesis de complementariedad de nicho y que podrían indicar que, en ambas épocas climáticas, los recursos limitantes para el ensamblaje de Anolis en el área de estudio serían los alimenticios. Los valores de traslape espacial por pares de especies indicaron que A. auratus fue estadísticamente diferente en el uso de los recursos espaciales a las otras especies. En ambas épocas climáticas, el par de especies que presentó los valores más altos de traslape tanto para los recursos espaciales y alimenticios fueron A. gaigei y A. gr. fuscoauratus. Los resultados de esta investigación muestran que las estrategias de coexistencias de las especies de Anolis son importantes para la estructuración de estas lagartijas en el BST en los Montes de María, Caribe colombiano.
Primera expedición ornitológica a Coromoro, Santander, Colombia
Authors: Arbeláez Cortés Enrique , Arenas Vega Briyith , Rodríguez Rey Angélica , Barreto Vargas Sergio Augusto , Avendaño Jorge Enrique
Published: July 2023

Objetivo: Presentar los resultados de una expedición ornitológica al municipio de Coromoro, al sur del departamento de Santander, realizada para obtener los primeros registros respaldados por evidencia de especímenes de referencia o de grabaciones de audio. Metodología: Se muestrearon aves con redes de niebla (845 h/red) y con grabaciones de audio estandarizadas (siete horas) en mayo de 2021 en los alrededores de dos campamentos en las veredas de Guadual y Naranjal, entre 2014 y 3121 msnm en Coromoro. Resultados: Se registraron 72 especies de aves, siendo 47 respaldadas por recolecta de especímenes y 40 por grabaciones de audio. Una comparación con los registros de otras expediciones ornitológicas indicó que el 78% de las especies documentadas en esta expedición se ha registrado a menos de 50 km de distancia de nuestros campamentos, pero el 58% de los registros son de hace más de 20 años. Se reportan nuevas poblaciones de especies endémicas y evidencia de que 10 especies podrían estar en su época reproductiva considerando el tamaño de sus gónadas o la osificación del cráneo. Conclusiones: La expedición a Coromoro llena vacíos de información geográfica para la avifauna de esta región de los Andes colombianos y brinda material para ampliar su conocimiento.
A post-mortem assessment of the #EndSARS protest and police brutality in Nigeria
Authors: Ecoma Bonnievolo E
Published: July 2023

In October 2020 many Nigerians took to the streets to protest against the illicit and inhumane activities and brazen brutality of the Special Anti-Robbery Squad (SARS), a special unit of the Nigerian police force renowned for the most unethical, illegal, corrupt and dehumanising practices. With significant global reach and support, the protesters demanded, among others, the disbandment of the police unit and justice for all deceased victims of police brutality. These and other demands, which were all geared towards ending police brutality, were well received by the federal government, with promises of full compliance. A first step was the actual disbandment of SARS. With successive demands tilting towards a silent revolution, the protest was truncated by military repression, leaving many in doubt as to whether or not the government would fulfil its promises in respect of the demands. This article undertakes an assessment of the protest in its context in a bid to ascertain whether or not the post-protest period has witnessed an end to or reduction in the level of police brutality. It examines the culture of police brutality, precursors to the protest, the demands by protesters as well as the responses and promises by government, and appraises the extent to which such promises and proposed policy reforms by the federal government have translated into significant and sustainable changes in policing.
Aprendizaje significativo de la evolución humana: una secuencia didáctica para la escuela secundaria
Authors: Silva Lourizelma , Silva Oliveira Graciela
Published: July 2023

Se buscó elaborar, ejecutar y evaluar una secuencia didáctica que contribuya a la enseñanza y el aprendizaje de conceptos que apoyan la idea de la evolución humana para la escuela secundaria. El desarrollo de este artículo, resultado de una investigación cualitativa, se basó en la Teoría del Aprendizaje Significativo descrita por David Ausubel, con la participación de estudiantes matriculados en el primer año de la escuela secundaria en un colegio público de Várzea Grande—MTmt. Los resultados encontrados señalan que las estrategias y actividades empleadas evidenciaron varios aspectos para abordar la evolución humana, y considerando el marco cultural que los estudiantes traen consigo, así como programando los contenidos con el fin de promover la diferenciación progresiva y la reconciliación integradora, una secuencia de actividades potencialmente significativas pueden colaborar en el aprendizaje de la evolución humana.
A study on university staff s perspective on the harmonization of the internal audit system within the framework of International Internal Auditing Standards
Authors: Gokoglan Kadir , Borutecene Yunus , Bilen Abdulkadir
Published: July 2023

Purpose- In this study, it is aimed to determine the problems experienced during the implementation of the internal audit system in state universities, which are a public administration, within the framework of international internal audit standards. Solution suggestions were made to the identified problems. In this research, a field study was conducted to determine the perceptions of senior supervisors working at Dicle University about the internal audit system at the university and their thoughts on compliance with international auditing standards.
Methodology- The application part of the research consists of two parts. The first part consists of 5 questions to determine the demographic characteristics of the personnel participating in the research. In the second part of the research, it consists of 26 statements that will determine the opinions of the personnel on the harmonization of internal audit with international internal audit standards within the scope of the study.
Findings- In general, it is seen that the participants of the research have an indecision about their working statements. Particularly, while disagreement comes to the fore in statements about international auditing standards, it is observed that the state of agreeing with statements about the role of internal auditing has increased.
Conclusion- As a result of this study, it is thought that the internal audit activities of the university staff are insufficient, there is not enough internal auditor in the university and the information about the internal audit activities is insufficient. In particular, the university should attach importance to the awareness-raising activities of the senior management personnel regarding internal audit. Because internal audit activities directly contribute to the efficient work of university personnel. Therefore, in-service training activities should be increased to increase the efficiency of internal audit units in universities. In addition, it is seen that there are not enough internal audit personnel in universities. In particular, universities should allow more internal auditors to work on this issue.

Keywords: Internal auditor, internal audit, international internal audit standards, university staff, Law No. 5018.
JEL Codes: M40, M42, M49
An artificial neural network based method for company valuation
Authors: Guner Pinar Unal , Unal Seyma Nur
Published: July 2023

Purpose - Company value is a crucial issue for everyone operating in financial markets. Both firm managers and investors should calculate the value of a firm, and there are many methods available to do so. Calculating valuation methods is challenging due to the multiple parameters and stages that are involved. Due to these reasons, it's possible for managers, owners, investors, and other stakeholders to estimate a company's value inaccurately or with difficulty. The main objective of this essay is to demonstrate how to evaluate a company's value using the NARX model as an alternative to other models.
Methodology – It is estimated that the firm value using an artificial neural network nonlinear external input autoregressive network model for 50 companies operating in the consumer products and industrial products and services sectors in the Euro Stoxx 50 index. The dataset covers the period from 2000 to 2021, and 20 financial ratios were included as input to the model, with FCFF as the output.
Findings- The NARX model with a 20-6-6-1 or 20-10-10-1 network structure provided the best value for both R and MSE at two-time delays. However, the 20-12-12-1 network structure of the NARX model with a time delay of three has a lower error rate after training and the best R value. The model's prediction success rate is 90.82% using the 20-12-12-1 network structure with a time delay of three.
Conclusion- As a result, this model can be used by investors and business managers to value a company. By using this method, businesses may gain access to more precise and unbiased appraisals that can guide resource allocation and strategic decision-making. By including macroeconomic factors that have an impact on the sector and employing a longer time frame, the study could be improved.

Keywords: Company value, company valuation, cash flow to firm, artificial neural networks, nonlinear external input autoregressive network
JEL Codes: C45, C80, G12
A study on middle-class female remote workers: a study on work-family conflict, job satisfaction and interpersonal communication satisfaction
Authors: Artar Melike , Balcioglu Yavuz Selim , Erdil Oya
Published: July 2023

Purpose- This study sought to investigate the impact of the emerging remote working model, which has gained significant popularity among businesses in recent years, specifically focusing on middle-class female employees. The primary objectives included understanding how work-family conflict, job satisfaction, and interpersonal communication satisfaction interplay in the context of remote work and how they contribute to the overall employee experience.
Methodology- To gather the data for the study, a comprehensive questionnaire was designed and distributed among the target population. The data collected were meticulously analyzed using the SPSS 23 statistical package program, ensuring the reliability and precision of the results. For further validation and in-depth interpretation, advanced statistical models such as Random Forest (RF) and Naive Bayes (NB) were employed. These supervised machine learning models played a crucial role in enhancing the completeness of the analysis and corroborating the study findings.
Findings- Empirical analysis led to several significant conclusions. The first was the finding that work-family conflict exhibited a negative correlation with interpersonal communication satisfaction. This suggested that a higher level of conflict between work and family roles tends to lower the quality of interpersonal communication in the context of remote work. Furthermore, the study found a positive relationship between job satisfaction and the nexus between work-family conflict and interpersonal communication satisfaction. This indicates that higher job satisfaction can potentially mitigate the negative impacts of work-family conflict on communication.
Conclusion- The study provides critical information on the challenges faced by middle-class female remote workers, particularly in the realm of work-family conflict and its subsequent effects. The findings underscore the negative implications of this conflict on both job satisfaction and interpersonal communication. Employers and organizations, therefore, must be mindful of these issues and devise suitable strategies, taking into account these outcomes to better manage the work-life balance and communication dynamics of their remote working female employees, thus improving their overall work experience.

Keywords: Remote work, woman, work-family conflict, job satisfaction, ınterpersonal communication.
JEL codes: E24, O47, J21