bluuebunny/crossref_metadata_2025_split huggingface dataset:
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.
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.
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).
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.
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.
Safe drinking water in remote rural communities in present era
Authors: Chhabra Shakuntala , Solanki Nilesh , Vilayatkar  
Published: July 2023

Background: Groundwater is important source of drinking water particularly in rural communities though river, dam water too is also used globally. Many sicknesses, deaths are due to water, major media for carrying causes of illnesses. Community based study was carried out to know about drinking water sources, action before consumption by rural communities.
Methods: Community based qualitative study using predesigned tool was carried out in tribal communities of 140 villages of forestry hilly region over one year with 25 women of 15 to 60 years randomly included from each village, total 4500.
Results: Reported sources of drinking water at home were public taps in 1671 (37.1%), public borewells 1195 (26.6%), wells in outskirts of villages 929 (20.6%), rivers 381 (8.5%), other sources 324 (7.2%) (harvested rainwater, dams). Of 4500 study subjects, total 1522 (33.8%) women reported no road for going to collect water. Only 1936 (43.0%) women had drinking water at work places, (310 (16.0%) borewell, 313 (16.2%) matka (mud pot), 999 (51.6%) well, 314 (16.2%) other sources. Those who did not have water at work places, 393 (15.3%) took water from home, 767 (29.9%) went to river. Before use at home, 3510 (78.0%) women did filtration, usually with cloth torn from old saree, 690 (15.3%) boiled, 300 (7.3%) used other methods (bleaching powder or alum).
Conclusions: In present era in well doing province untreated river water for drinking at home, work places are real dangerous practices, much more dangerous at work places as water is consumed directly from river without any action.
Szent István király hamis okleveleinek nyelvtörténeti vizsgálatáról
Authors: Szőke Melinda 
Published: July 2023

A magyar írásbeliség kialakulásának az idejéből, a 11. századból mindössze négy eredetiben fennmaradt hiteles oklevelet ismerünk. Ez a kedvezőtlen forrásadottság teszi indokolttá tehát, hogy a korszak nem hiteles, illetve nem eredeti, azaz bizonytalan kronológiai státuszú okleveleinek a nyelvi anyagára is ráirányítsuk a figyelmünket. Ezek az oklevelek azonban a hiteles oklevelekre kidolgozott módszerek segítségével nem foghatók eredményesen vallatóra.
Tanulmányomban a bizonytalan kronológiai státuszú oklevelek vizsgálatát segítő speciális módszertani elveket mutatom be, és ezek alapján teszek megállapításokat Szent István négy hamis (a Bakonybéli, a Pécsváradi és a két Zalavári) oklevelének nyelvtörtneti forrásértékével kapcsolatban.
Drawing and Analyzing Scientometric Maps of International Studies regarding Welfare and Mental Health in the Field of Accounting
Authors: Azodi Zahra , Moeinaddin Mahmoud , Shahmoradi Nasim 
Published: July 2023

Introduction: Today, accounting unit is known as the heart of every organization. Since accountants are responsible for recording and maintaining financial information as well as analyzing financial statements, it is very important to address their well-being and the factors affecting their mental health. Therefore, the present research tries to discover and investigate the research gaps by analyzing and illustrating the scientific productions related to the issue of mental well-being of accountants based on articles indexed in the Web of Science database.
Methods: This was an applied scientific research. The required data included articles published from 1998 to 2022 about well-being and mental health in the accounting profession. In addition, the selected articles have been subjected to scientific research using VOS software.
Results: The final analysis of 443 articles in the three fields of finance-commerce, behavioral sciences, and commerce showed that the most influential research related to Hemsworth and the United States included the highest amount of research and communication between the authors. In addition, in the co-occurrence map, accountants' well-being and mental health is more related to concepts such as disgust, fear, stress, and ethics.
Conclusion: Paying attention to the most and least productive countries and researchers through scientometrics can reveal research opportunities and weaknesses regarding accountants' well-being and mental health and open the horizon for Iranian researchers to present their research results at the international level.
Aptitudes prácticas y conocimientos de los estudiantes de odontología sobre protocolos ante el periodo de emergencia por COVID-19.
Authors: Cazar Marcelo Enrique , Pinos Gavilanes María Paz , Herrera Evelyn Gisella , Zhingre Mauricio Rubén 
Published: July 2023

Objetivo: evaluar el grado de conocimiento acerca de los protocolos de bioseguridad y atención a pacientes durante el periodo de emergencia por COVID-19, por parte de alumnos de la Facultad de Odontología de la Universidad de Cuenca, Ecuador. Métodos: se realizó un estudio descriptivo de corte transversal en alumnos de la Facultad de Odontología de la Universidad de Cuenca, Ecuador. Los datos fueron recolectados por medio de un instrumento tipo encuesta diseñado en base a información recopilada sobre protocolos de bioseguridad y atención odontológica a pacientes en época de emergencia sanitaria por COVID-19. Resultados: se recopiló un total de 131 encuestas; de estudiantes de semestre de la Facultad de Odontología de la Universidad de Cuenca; se eliminaron 5 encuestas debido a que se repitieron, los datos fueron analizados en un total de 126 encuestas. Como resultados se obtuvo en segmento 1 (Equipo de protección individual): 76% de respuestas y 24% incorrectas, el segmento 2 (Protocolos de desinfección): 57% fueron respuestas correctas y 42% incorrectas y por último el segmento 3 (Protocolo de cuidado al paciente): el 88% fueron respuestas correctas y el 12% incorrectas. Conclusiones: los profesionales de la odontología son uno de los grupos más expuestos al contagio del COVID-19 debido al área en que se trabaja, por tal motivo el clínico debe estar instruido correctamente acerca de los protocolos de atención, sin obviar ninguna de las recomendaciones de bioseguridad y debido a que el SARS-CoV-2 aún está en estudio se sugiere que la información sea actualizada constantemente.
THE LIGHTHOUSE MOVIE: DOMINATION, SUBJUGATION, AND EXPLOITATION
Authors: Hoar Mulyadi , Tisnawijaya Christy 
Published: July 2023

Power relations is a compelling and complex social issue that has been present throughout human history. It is just as prominent in today’s day and age as in every period of human life; it is also represented in movies. The Lighthouse movie, written and directed by Robert Eggars (2019), depicts the life of two lighthouse keepers, a supervisor and his assistant. They get stranded on a remote island off the coast of New England in the 1890s when a massive storm hits the island. Left with only alcohol as their emergency food supply, the power balance between supervisor and assistant worsens. This article is a film study; the film was analyzed by examining the narrative and cinematography elements. The discussion consults Michel Foucault’s theory (1982) regarding power relations, how power works, the forms they take, and how it is imposed. The finding shows that the supervisor exercises power through domination, subjugation, and exploitation of the assistant. As the setting of the place, the lighthouse has a symbolic meaning of power; as it navigates the ships on the sea, the lighthouse keeper rules what happens both inside and outside his house.
Pemanfaatan Media Pembelajaran Digital dalam Pembelajaran Menulis Puisi di Era Merdeka Belajar
Authors: Ulfah Anisa , Fitriyah Lailatul , Zumaisaroh Nur , Jesica Elena 
Published: July 2023

Pembelajaran menulis puisi merupakan salah satu capaian pembelajaran dalam Kurikulum Merdeka yang diajarkan di kelas VIII. Peserta didik diharapkan mampu mengungkapkan gagasan dan perasaannya melalui bahasa yang padat dan indah sesuai karakteristik puisi. Tujuan penelitian ini ialah untuk memaparkan pemanfaatan media pembelajaran digital dalam pembelajaran menulis puisi. Penelitian ini dilakukan melalui metode penelitian kualitatif dengan paparan deskriptif. Data penelitian ini, yaitu modul ajar, lembar observasi, serta hasil karya puisi peserta didik. Modul ajar dan lembar observasi dianalisis untuk memaparkan pemanfaatan media pembelajaran digital dalam proses pembelajaran. Ada pun karya puisi peserta didik dianalisis sesuai pedoman kriteria penilaian menulis puisi. Hasil penelitian menunjukkan bahwa skor rata-rata yang didapatkan peserta didik mengalami peningkatan melalui pemanfaatan media pembelajaran digital. Keterampilan yang dikembangkan dalam pembelajaran menulis puisi, meliputi kesesuaian judul/tema dengan isi, diksi, gaya bahasa, rima, serta makna puisi. Media pembelajaran yang dimanfaatkan pendidik, meliputi platform Quizziz, antologi puisi, kanal Youtube, Powerpoint, serta media sosial Instagram. Kombinasi media-media tersebut dapat dimanfaatkan secara optimal karena dapat saling melengkapi dalam setiap kegiatan pembelajaran menulis puisi. Dengan cara demikian, pemanfaatan media pembelajaran digital dapat memberikan wawasan dan pengalaman bagi peserta didik untuk mendapatkan pengalaman belajar yang berkualitas dalam pembelajaran menulis puisi.
Propriétés d’une souche d’orthopoxvirus isolée des dromadaires du Niger
Authors: Nguyen Ba Vy Vy , Richard Didier , Gillet J.P. 
Published: July 2023

La souche de virus VD47 isolée des dromadaires du Niger possède la morphologie et les propriétés caractéristiques des camelpoxvirus : elle est thermolabile, résistante à l’éther, sensible au chloroforme et à l’IDU. Sa température limite est de 38,5 °C et elle induit la formation de syncitia et de foyers de cellules rétractées avec phénomène d’hémadsorption positif. Ce virus s’est révélé non pathogène pour les souris et très faiblement pour les lapins. Il est neutralisé par du sérum anti-vaccine. La question du pouvoir pathogène pour l’homme des camelpoxvirus et des camelparapoxvirus est débattue par les auteurs.