bluuebunny/crossref_metadata_2025 huggingface dataset:
The Role of Integration Between Target Costing and Time-Driven Activity-Based Budgeting Techniques in Managing Time and Cost and its Reflection in Achieving Competitive Advantage
Authors: Al-Kawaz Salah Mahdi Jawad , Al-Daami Ahmed Naser Abbas , Abbas Ali Abdulhassan
Published: December 2023

Traditional cost systems are no longer able to provide the appropriate information in line with the developments and changes of the contemporary and competitive business environments. However, with a vibrant change in the functioning of businesses today, such cost system features have also been replaced to meet the dynamic business environments. If these two techniques are applied in coalition, it is possible for the economic units to manage their time and costs easily, which acts as a competitive advantage for those units. The current research study aims at studying the complementary relationships of these two techniques by applying them in one of the laboratories of General Company for Textile Industries in Hilla, which represents the men’s clothing factory in Najaf. Based on the analytical results, the researchers arrived at several conclusions, while the most important conclusion was the identification of the absence of features to apply the target costing and time-driven activity-based budgeting techniques. The most important recommendation made to the men’s clothing factory in Najaf is the need to pay adequate attention for the application of two techniques to achieve their goals.
The divergent legacies of the Yugoslav architectural heritage: The afterlives of “mesna zaednica” in Taftalidže, Skopje
Authors: Brsakoska Jana , Spasevska Danica , Daskalov Blagoj , Ilievski Ilcho
Published: December 2023

Ongoing urban developments and contemporary social challenges increase the need for different typologies of new urban and architectural concepts, where the issue of built heritage, specifically in the case of Skopje, has become a vast problem. With the decomposition of the former Yugoslavia states in the 1990s, each of these new states inherited a significant amount of built heritage, including monuments, buildings, landscapes, and infrastructure, constructed according to the prevailing socialist urban-planning and architectural doctrines, and directed within and towards the immediate contexts of the Yugoslav community. Most of this inherited architecture vanished across the ex-Yugoslav space, while a large part of it is still left in a state of limbo.

This article aims to show the socialist built heritage's adaptation, or transformation, into new urban scenarios, using the case of Skopje to reveal more about the relationship between the heritage and the local inhabitants. It will closely examine the socialist architecture and its relation with the local memory communities, or the locals’ memories. More precisely, we will focus on one unique construct that has slowly vanished in the modern-day living: the notion of mesna zaednica. In focusing on this notion in the urban district of Taftalidže, Skopje, we will discuss the means of transposing socialist communal features into the new, post-socialist architectural rhetoric and way of life, as well as engage with various discourses about urban heritage emerging in the urban context. Finally, we will argue in favor of several heritage and urban development theses, which can be applied to the particular case study. The article is part of an ongoing research project that presents its results in English for the first time.
Nanopore Formation at the Junctions of the Polycrystal Intergranular Boundary Under Plastic Deformation
Authors: Suchikova Y. , Kovachov S. , Lazarenko A. , Bohdanov I. , Popov A. I.
Published: December 2023

The article is devoted to the study of the mechanism of nanopore formation in the junctions of polycrystal grains under the plastic deformation of a polycrystal due to the conservative sliding of lattice dislocations. A mechanism for the formation of a stress concentrator at the junction of the polycrystal grain boundaries is proposed. The possibility of relaxation of the stress state due to the formation of a junction nanopore is considered in the paper.
Breast-lesion assessment using amide proton transfer-weighted imaging and dynamic contrast-enhanced MR imaging
Authors: Zhuang Lulu , Lian Chun , Wang Zehao , Zhang Ximin , Wu Zhigang , Huang Rong
Published: December 2023

Background

Previous studies have indicated that amide proton transfer-weighted imaging (APTWI) could be utilized for differentiating benign and malignant tumors. The APTWI technology has increasingly being applied to breast tumor research in recent years. However, according to the latest literature retrieval, no relevant previous studies compared the value of APTWI and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) in distinguishing benign lesions from malignant lesions. In the present study, the application of APTWI and DCE for differentiating the benign and malignant breast lesions was investigated.

Patients and methods

APTWI was performed on 40 patients (42 lesions) who were enrolled in this prospective study. The lesions were split into two groups, one with malignant breast lesions (n = 28) and the other with benign breast lesions (n = 14), based on the results of the histology. The measured image characteristics (APT value, apparent diffusion coefficient [ADC] value, and time-of-intensity-curve [TIC] type) were compared between the two groups, and the ROC curve was used to quantify the diagnostic performance on the basis of these factors. The correlation between the APT values and the estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER-2), and Ki-67 expression levels and histological grades was examined using Spearman's correlation coefficient.

Results

The measured APT and ADC values showed a strong inter-observer agreement according to the intraclass correlation coefficients (0.954 and 0.825). Compared to benign lesions, malignant lesions had significantly higher APT values (3.18 ± 1.07 and 2.01 ± 0.51, p < 0.001). Based on APTWI, DCE, diffusion-weighted imaging (DWI), and ADC + APTWI, ADC + DCE, and DCE + APTWI, the area-under-the-curve values were 0.915, 0.815, 0.878, 0.921, 0.916, and 0.936, respectively.

Conclusions

APTWI is a potentially promising method in differentiating benign and malignant breast lesions, and may it become a great substitute for DCE examination in the future.
Post-radiation xerostomia therapy with allogeneic mesenchymal stromal stem cells in patients with head and neck cancer: study protocol for phase I clinical trial
Authors: Strojan Primoz , Plavc Gaber , Kokalj Marko , Mitrovic Goran , Blatnik Olga , Lezaic Luka , Socan Aljaz , Bavec Aljosa , Tesic Natasa , Hartman Katrina , Svajger Urban
Published: December 2023

Background

Xerostomia is a common side effect of radiotherapy in patients with head and neck tumors that negatively affects quality of life. There is no known effective standard treatment for xerostomia. Here, we present the study protocol used to evaluate the safety and preliminary efficacy of allogeneic mesenchymal stromal stem cells (MSCs) derived from umbilical cord tissue.

Patients and methods

Ten oropharyngeal cancer patients with post-radiation xerostomia and no evidence of disease recurrence 2 or more years after (chemo)irradiation (intervention group) and 10 healthy volunteers (control group) will be enrolled in this nonrandomized, open-label, phase I exploratory study. MSCs from umbilical cord tissue will be inserted under ultrasound guidance into both parotid glands and both submandibular glands of the patients. Toxicity of the procedure will be assessed according to CTCAE v5.0 criteria at days 0, 1, 5, 28, and 120. Efficacy will be assessed by measuring salivary flow and analyzing its composition, scintigraphic evaluation of MSC grafting, retention, and migration, and questionnaires measuring subjective xerostomia and quality of life. In addition, the radiological, functional, and morphological characteristics of the salivary tissue will be assessed before, at 4 weeks, and at 4 months after the procedure. In the control group subjects, only salivary flow rate and salivary composition will be determined.

Discussion

The use of allogeneic MSCs from umbilical cord tissue represents an innovative approach for the treatment of xerostomia after radiation. Due to the noninvasive collection procedure, flexibility of cryobanking, and biological advantages, xerostomia therapy using allogeneic MSCs from umbilical cord tissue may have an advantage over other similar therapies.
Management of tumor volume changes during preoperative radiotherapy for extremity soft tissue sarcoma: a new strategy of adaptive radiotherapy
Authors: De Lamarliere Marion Geneau , Lusque Amélie , Khalifa Justine Attal , Esteyrie Vincent , Chevreau Christine , Valentin Thibaud , Gangloff Dimitri , Meresse Thomas , Courtot Louis , Rochaix Philippe , Boulet Bérénice , Graulieres Eliane , Ducassou Anne
Published: December 2023

Background

Using adaptive radiotherapy (ART), to determine objective clinical criteria that identify extremity soft tissue sarcoma (ESTS) patients requiring adaptation of their preoperative radiotherapy (RT) plan.

Patients and methods

We included 17 patients with a lower extremity ESTS treated between 2019 and 2021 with preoperative RT, using helicoidal intensity-modulated RT (IMRT) tomotherapy, before surgical resection. We collected clinical, tumor parameters and treatment data. Repositioning was ascertained by daily Megavoltage computed tomography (MVCT) imaging. Using the PreciseART technology we retrospectively manually delineated at least one MVCT for each patient per week and recorded volume and dosimetric parameters. A greater than 5% change between target volume and planned target volume (PTV) dosimetric coverage from the initial planning CT scan to at least one MVCT was defined as clinically significant.

Results

All 17 patients experienced significant tumor volume changes during treatment; 7 tumors grew (41%) and 10 shrank (59%). Three patients (18%), all undifferentiated pleomorphic sarcomas (UPS) with increased volume changes, experienced significant reductions in tumor dose coverage. Seven patients required a plan adaptation, as determined by practical criteria applied in our departmental practice. Among these patients, only one ultimately experienced a significant change in PTV coverage. Three patients had a PTV decrease of coverage. Among them, 2 did not receive plan adaptation according our criteria. None of the patients with decreased tumor volumes had reduced target volume coverage. Monitoring volume variations by estimating gross tumor volume (GTV) on MVCT, in addition to axial and sagittal linear tumor dimensions, appeared to be most effective for detecting reductions in PTV coverage throughout treatment.

Conclusions

Variations in ESTS volume are evident during preoperative RT, but significant dosimetric variations are rare. Specific attention should be paid to grade 2–3 UPSs during the first 2 weeks of treatment. In the absence of dedicated software in routine clinical practice, monitoring of tumor volume changes by estimating GTV may represent a useful strategy for identifying patients whose treatment needs to be replanned.
Locoregional therapy combined with systemic therapy (LRT + ST) for unresectable and metastatic intrahepatic cholangiocarcinoma: a systematic review and meta-analysis
Authors: Zhang Mengqi , Qi Weiwei , Qiu Xiaofei , Yu Chunpeng , Qiu Wensheng , Wang Song , Qiu Zhenkang
Published: December 2023

Background

The outcome of systemic therapy (ST) for unresectable and metastatic intrahepatic cholangiocarcinoma (iCCA) is poor. This study aims to further evaluate the efficacy and safety of locoregional therapy combined with systemic therapy (LRT + ST) compared with only ST in unresectable and metastatic iCCA by performing a systematic literature review and meta-analysis.

Methods

A comprehensive search was performed in PubMed, Web of Science, EMBASE, and the Cochrane Library up to November 3, 2022. The primary outcome was overall survival (OS), and the secondary outcomes were progression-free survival (PFS), objective response rate (ORR), and adverse events (AEs).

Results

Ten retrospective cohort studies with 3,791 unresectable or metastatic iCCA patients were enrolled in this study, including 1,120 who received ablation, arterially directed therapy (ADT), or external beam radiation therapy (EBRT) combined with ST. The meta-analysis showed that the LRT + ST group had a better OS (HR = 0.51; 95% CI =0.41–0.64; p value < 0.001), PFS (HR = 0.40, 95% CI = 0.22–0.71, p value = 0.002) and ORR (RR = 1.68; 95% CI = 1.17–2.42; p value = 0.005). Subgroup analysis showed that both ST combined with ADT (HR = 0.42, 95% CI = 0.31–0.56, p value < 0.001) and EBRT (HR = 0.67, 95% CI = 0.63–0.72, p value < 0.001) could improve OS. Neutropenia, thrombocytopenia, anemia, anorexia, and vomiting did not show significant differences between the groups (p value > 0.05).

Conclusions

Compared with only ST, LRT + ST improved survival outcomes for unresectable and metastatic iCCA patients without increasing severe AEs, which can further provide a basis for guidelines.
Time-frequency analysis of differences between coordinates of three permanent GNSS stations in Krakow
Authors: Kosek Wiesław , Siejka Zbigniew
Published: December 2023

This paper applies time-frequency analysis to a 3-day time series with a sampling interval of 1 second of the changes in E, N and H coordinates of three permanent GNSS stations: WRON, KR10, and KRUR in Krakow, as well as differences between them. Time-frequency analysis was conducted using a Fourier transform band-pass filter, which separates time series into frequency components. By analyzing the differences between these coordinates, it was observed that the WRON station shows a systematic error in the form of a regular wideband oscillation with a period of 75 minutes, whose amplitude varies from approximately 1 to 3 mm with a period of about 1 day. In the horizontal plane, this oscillation takes the shape of a ˚attened ellipse with a semi-major axis oriented in the northwest direction. The most probable cause of this regular oscillation is the day-to-day variability of the multipath signal environment.
Reflexive Understanding of the Concept of a Spouse – Comments on the Impact of the Decision of the Court of Justice of the European Union in Coman and Others on the Rulings of Administrative Courts
Authors: Chmielarz-Grochal Anna , Wojciechowski Bartosz
Published: December 2023

This article relates to the CJEU’s understanding of the concept of the spouse in Case C-673/16 and its effect on the process of law application by Polish administrative courts. The authors considerations are based on the assumption that the CJEU’s interpretation of EU law in Coman and Others is of a dynamic-deliberative nature, based on functional rules, and that at the same it time takes into account a specific legal and socio-cultural context in which one of the fundamental freedoms guaranteed by EU law is implemented. This judgment, as authors underline, confirms that a proper understanding of the current legal context of the concept of a spouse requires that the social and cultural context and the plurality of values arising from different lifestyles be taken into account in the application and interpretation of the law, all with a view to empowering the individual in his or her relationship with the State and raising the level of protection of human rights. Authors observe in the practice od Polish administrative courts that this CJEU’s judgment is important in the argumentative layer, but not decisive for the resolution of the case in specific situations where there is a need to address the effect of same-sex marriage in a case related to the implementation of the EU right to free movement. In this context authors consider whether the justification for rulings of administrative courts may be sought in John Gray’s concept of modus vivendi liberalism.
Índice de sucesso da ventilação mecânica não invasiva em pacientes atendidos nas unidades de terapia intensiva do CASU - Hospital Irmã Denise em Caratinga/MG
Authors: Modesto Pedro Lucas , Reis Juliana Carvalho
Published: December 2023

A ventilação mecânica não invasiva é aplicada em pacientes com objetivo de melhorar a difusão do oxigênio para os tecidos, a técnica dispensa a necessidade de sedativos e evita danos físicos e mentais comumente provocados pela ventilação mecânica invasiva. O presente estudo descreve e busca analisar os índices de sucesso do procedimento nas Unidades de Terapia Intensiva do CASU - Hospital Irmã Denise por meio dos parâmetros da ventilação não invasiva e do Score HACOR, que avalia a taxa de falha através da combinação de Frequência Cardíaca, acidose, nível de consciência, oxigenação e Frequência Respiratória. Os pacientes que foram abordados no estudo estão dentro da classificação de portadores de doenças hipoxêmicas e hipercápnicas e sendo subdividos por diagnostico (doença pulmonar obstrutiva crônica; edema agudo pulmonar, pneumonia adquirida na comunidade). Dos pacientes analisados, a VNI foi considerada bem-sucedida em 50% casos. Observou-se uma maior taxa de sucesso entre pacientes com edema agudo pulmonar (75%) e DPOC exacerbado (60%), enquanto as falhas foram mais prevalentes entre os pacientes com pneumonia (80%). Esses resultados vão de encontro a premissa das diretrizes brasileiras de ventilação mecânica, que estabelecem uma taxa de sucesso esperada de 75% para a população hipercápnica e 50% para os hipoxêmicos com o uso da VNI. Portanto, é necessária uma maior discussão sobre o uso da VNI em pacientes com doenças que cursam com hipoxemia, a fim de buscar estratégias mais eficientes para o tratamento não invasivo da insuficiência respiratória aguda nessa população.
Breve estudo sobre a seletividade de mulheres pretas no crime de tráfico de drogas no Brasil à luz da necropolítica
Authors: Fernandes Thielly Nayane Alves , De Melo Stephanny Resende , Oliveira Rayza Ribeiro , Arcieri Barreto Roberta Hora
Published: December 2023

A necropolítica, enquanto poder de morte do Estado, marginaliza e desumaniza mulheres negras. Verificando o crescimento do número de mulheres pretas encarceradas por tráfico após a vigência da Lei de Drogas, o estudo torna-se relevante diante da ineficácia e da atuação seletiva estatal na repressão a tal delito. Assim questiona-se: de que forma o Estado brasileiro põe em prática a necropolítica e atua de maneira seletiva na repressão ao crime de tráfico de drogas e atinge principalmente às mulheres negras? A investigação dividiu-se inicialmente na análise crítica acerca da política de combate às drogas e a sua correlação ao conceito de necropolítica para em seguida destacar o perfil das mulheres presas pelo crime de tráfico e elencar os direitos e garantias fundamentais que são corriqueiramente negados às mulheres negras encarceradas. A metodologia utilizada deu-se através da abordagem qualitativa, de natureza exploratória, com procedimento metodológico da pesquisa documental e bibliográfica.
DETECTING UNKNOWN CHANGE POINTS FOR HETEROSKEDASTIC DATA
Authors: BAŞÇI Sıdıka , KHAN Asad Ul Islam
Published: December 2023

There are several tests to detect structural change at unknown change points. The Andrews Sup F test (1993) is the most powerful, but it requires the assumption of homoskedasticity. Ahmed et al. (2017) introduced the Sup MZ test, which relaxes this assumption and tests for changes in both the coefficients of regression and variance simultaneously. In this study, we propose a model update procedure that uses the Sup MZ test to detect structural changes at unknown change points. We apply this procedure to model the weekly returns of the Istanbul Stock Exchange's common stock index (BIST 100) for a 21-year period (2003-2023). Our model consists simply a mean plus noise, with occasional jumps in the level of mean or variance at unknown times. The goal is to detect these jumps and update the model accordingly. We also suggest a trading rule that uses the forecasts from our procedure and compare it to the buy-and-hold strategy.
ПЕДАГОГІЧНІ УМОВИ ФОРМУВАННЯ ПРОФЕСІЙНОЇ МАЙСТЕРНОСТІ ВИКЛАДАЧІВ ПРАВОВИХ ДИСЦИПЛІН У СЕРЕДОВИЩІ ЗАКЛАДУ ВИЩОЇ ОСВІТИ
Authors: Чубінська Наталія , Скочиляс Андрій
Published: December 2023

У статті розглядається проблема обґрунтування педагогічної умови формування професійної майстерності викладачів правових дисциплін у середовищі закладу вищої освіти. Стверджується, що правова освіта має тенденцію до актуалізації з огляду на процеси розвитку суспільства та його руху у бік демократизації і глобалізації. Визначається, що правова компетентність належить до ключових, найголовніших якостей молодої людини і полягає у здатності активно, відповідально й ефективно реалізовувати громадянські права й обов’язки в умовах розвитку демократичного суспільства.
ОРГАНІЗАЦІЙНО-ПЕДАГОГІЧНІ ЗАСАДИ МОРАЛЬНО-ХРИСТИЯНСЬКОГО ВИХОВАННЯ У ПЕНІТЕНЦІАРНИХ ЗАКЛАДАХ
Authors: Білавич Галина
Published: December 2023

Стаття присвячена проблемі здійснення морально-християнського виховання у виправних колоніях, інших пенітенціарних закладах. Виокремлено особливості цього процесу за радянської доби (1970–1980-ті рр.) та періоду новітньої незалежності України, актуалізовано важливість морально-християнського виховання за умов сучасних викликів, війни, розв’язаної росією на території України. Показано місце морально-християнського виховання у пенітенціарній педагогіці. Окреслено організаційно-педагогічні умови реалізації морально-християнського виховання у виправних закладах.
Investigation of Money Laundering Cases by Investigators Who Do Not Investigated the Predicate Crime
Authors: Syakur Syahrijal
Published: December 2023

Combining predicate crime investigations with money laundering cases is very possible if investigators find sufficient preliminary evidence of the occurrence of money laundering crimes when investigating predicate crimes. Then the merger of predicate crime investigations and money laundering cases is the authority given to investigators. This paper aims to find out about the investigation of money laundering case by other investigators who did not investigate the predicate crime, and who have not investigated the predicate crime. The research method used in this paper is a doctrinal method with a statutory, case, and conceptual approach. The results of this study are that if in accordance with Article 74 of the Money Laundering Law in conjunction with Article 2 paragraph (1) of the Money Laundering Law, the two investigative agencies have the same authority to investigate predicate crimes and both are also authorized to investigate money laundering cases, the investigator agency is authorized to investigate money laundering cases where the predicate crime investigation was carried out by investigators from different agencies.
Developing Topics of Experiential Activities in Defense and Security Teaching in Order to Develop Learners' Ability to Learn about Nature and Society
Authors: Minh Tien Le , Sang Hoang Van , Anh Nguyen Ngoc
Published: December 2023

This article aims to propose a set of topics for experiential activities in defense and security teaching that can enhance learners' abilities to learn about nature and society. The article begins by highlighting the importance of defense and security education in shaping learners' understanding of the role of military and security forces in protecting the nation and society. The article then presents five topics for experiential activities, which include visiting security and military agencies, practical experience in military training, practicing emergency response skills, learning self-defense techniques, and engaging in social activities related to security. The article argues that these activities can not only help learners gain a better understanding of defense and security but also provide them with opportunities to develop essential skills such as decision-making, problem-solving, and collaboration. Furthermore, the article suggests that these activities can instill a sense of civic responsibility and a willingness to contribute to the community's safety and well-being. Overall, the article proposes that incorporating experiential activities into defense and security teaching can enrich learners' learning experiences and foster their abilities to learn about nature and society. By providing hands-on experiences and opportunities for practical application, defense and security education can prepare learners to be responsible and engaged citizens who understand the importance of national defense and community safety.
Instilling Awareness on National Defense Responsibilities into Students Through the Employment of VNU National Defense and Security Training Center
Authors: Cong Nghi Nguyen , Vinh Diep Van
Published: December 2023

In response to the requirement of defending the socialist Vietnamese Fatherland in the new situation, our Party and State advocate strengthening defense and security education in the whole society, which is being considered a strategic mission and playing crutial role, According to the classification on training by the Ministry of National Defense applied at the Center for Defense and Security Education, Vietnam National University, Hanoi, students of colleges and higher education are pioneer citizens and great future resources of the country of the country. The objective of the study is to build up the citizen's awareness of defendingthe Fatherland for students through the subject of National Defense and Security Education. The research methods are carried out on the basis of basic surveys on lecturers and students through each course and annually at the VNU National Defense and Security Training Center. The research results show that the Center has attached the knowledge of national defense and security to the building of citizens' awareness of the Fatherland defending obligation for students, and successfully completed the task. However, it does have some limitations: the link between knowledge acquiring and students' awareness is not profound enough; there is also the concept that students' learning outcomes are on top of all, failed to highlight to the students personal cultivation and awareness to be ready for the obligation of protecting the Fatherland,... As a result, it has some unexpected effect uponthe objectives and requirements of the subject, therefore, it is necessary to continue researching to promote a better citizen's awareness of the obligation to protect the Fatherland through the subjects.
Lipoproteins and total cholesterol in adults with normal and elevated cholesterolemia in a polyclinic in Lima-Peru 2022: A correlational study
Authors:   Universidad Científica del Sur, Facultad de Medicina Humana, Lima, Perú, Guevara Tirado Alberto
Published: December 2023

Objective: To evaluate the degree of correlation between high-density, low-density, and very low-density lipoproteins and total cholesterol in patients with normal and high cholesterolemia. Methodology: Observational, analytical and cross-sectional study carried out from January to September 2022 with 207 patients over 18 years of age divided into a group with normal cholesterol and another with hypercholesterolemia. The Spearman correlation test was performed. Results: In normocholesterolemic subjects there was a low and negative correlation between high-density lipoproteins and low-density lipoproteins (-0.263) as well as between high-density lipoproteins and very low-density lipoproteins (-0.220). In hypercholesterolemic patients there was a low and positive correlation between high-density lipoproteins and total cholesterol (0.344). In both groups there was a high correlation between cholesterol and low-density lipoproteins and a low and positive correlation between cholesterol and very low-density lipoproteins. Conclusions: Lipoproteins are correlated in normocholesterolemics and high-density lipoproteins are correlated in hypercholesterolemics.
Registration and signal processing in measuring system for monitoring leaks of NPP pipeline fittings
Authors:   Volgodonsk Institute of Engineering and Technology — branch of the National Research Nuclear University «MEPHI», Abidova E. A. , Ratushny V. I. ,   Volgodonsk Institute of Engineering and Technology — branch of the National Research Nuclear University «MEPHI»
Published: December 2023

The article is devoted to the problem of identification of leakiness of pipeline fittings. A measuring system for leak monitoring is described. In contrast to the organoleptic approach adopted in practice, automatic signal processing is proposed, followed by a conclusion about the tightness of the valve. The automatic processing is based on an algorithm based on the analysis of the singular spectrum, which provides an increase in sensitivity. The effectiveness of the complex is confirmed by the test results of the measuring complex using a hydraulic stand.
Full-Bridge power resonant converter for the arcjet thruster of a small spacecraft
Authors:   Omsk State Technical University, Fedyanin V. V. , Shalay V. V. ,   Omsk State Technical University, Fedorov V. K. ,   Omsk State Technical University, Yachmenev P. S. ,   Omsk State Technical University, Vavilov I. S. ,   Omsk State Technical University
Published: December 2023

In this paper, the applied problems of designing a bridge resonant converter with a high-voltage arc ignition system in the channel of an electric arc motor is solved. The development of a bridge resonant power supply is presented, a review and analysis of power sources of arcjet thruster of various capacities is carried out. The theoretical aspects of calculating the main parameters of the source are considered. The transfer function describing the gain of the resonant circuit of the power supply is given. With the help of the transfer function, gain diagrams are constructed for various values of the Q-factor of the contour. A prototype of a power supply, a starting system and an arcjet thruster is presented. A series of experiments aimed at identifying the operability of the source is carried out. According to the experimental results, the maximum output power of the source wiz 182,4 watts, and the maximum efficiency is 87,5 %. Frequency spectra of the output current of the power supply are obtained. The current-voltage characteristics for the Ar and N2 are constructed. In the course of the study, phenomena related to the chaotic dynamics of the arc in the engine channel are discovered. Chaotic fluctuations are observed at the moment of starting the engine and disappeared after steady-state operation.
Geometric modeling of the process of digging trench pits during pipeline repair
Authors:   Omsk State Technical University, Pritykin F. N. , Kuznetsov I. S. ,   Omsk State Technical University
Published: December 2023

When performing work on the repair of the pipeline, the main machine designed for digging trench pits is a single-bucket excavator. Pit digging currently uses two excavators moving along the pipeline in parallel directions. In order to increase the efficiency of digging pits, it is necessary to check whether it is possible to dig pits with only one excavator located in the middle of the pipeline, as well as to dump soil into a dump located on both sides of the excavator's line of motion. Cases are considered when pit digging is performed by a non-modernized singlebucket excavator, an excavator with the ability to rotate the boom section and an excavator with the ability to rotate the bucket. The full cycle of the process of digging a pit with dumping of soil into a dump is also considered. On the basis of the research carried out, an algorithm for automated control of the movement of the excavator bucket when digging trench pits is developed. The results of computer simulation of the movement of the excavator manipulator when digging trench pits are presented.
Increasing the economic efficiency of the work of Gazprom Transgaz Kazan LLC when operating gas heaters at gas distribution stations using a power supply unit
Authors:   Kazan National Research Technological University, Shalnev M. O. , Denisova Ya. V. ,   Kazan National Research Technological University, Battalov A. F. ,   Kazan National Research Technological University
Published: December 2023

This article discusses one of the ways to increase the economic efficiency of the Gazprom Transgaz Kazan Limited Liability Company (Gazprom Transgaz Kazan LLC) in the operation of gas heaters at a gas distribution station by replacing the gas heating unit. The advantages of the equipment «ISTOK-60» over PTPG-30 are described, the calculation of the economic effect from the introduction of new equipment is given. The object of the study is the process of operating gas heaters at the gas distribution station of OOO Gazprom Transgaz Kazan, the subject is a method for increasing the economic efficiency of gas heaters. As a result of the study, the expediency of replacing old equipment with new one is proved and the economic effect is calculated. The article also raises questions about the possibility of using the concept of «Lean production» in the process of gas distribution. One of the methods of lean manufacturing — SMED is proposed as the main one.
Highly reliable switched reluctance motor for the traction electric drive system of railway rolling stock
Authors:   Rostov State Transport University, Miroshnichenko E. E.
Published: December 2023

The main purpose of this work is to create conditions for the use of switched reluctance motor in the traction electric drive system of rolling stock by increasing the reliability of its bearings. The object of the study is the traction switched reluctance motor. The task has been set, which consists in developing an algorithm that allows to calculate the characteristics of the traction switched reluctance motor at the stages of design and production, taking into account the forces of a oneway magnetic attraction. The forces of one-way magnetic attraction, arising in the air gap of the electric motor with two types of its non-uniformity are studied. A proposal has been made to limit the force of the one-way magnetic attraction to a force at a permissible residual imbalance. As a result, an algorithm for determining the characteristics of the traction switched reluctance motor is unique in its kind, which makes it possible to reduce the effect of forces of the one-way magnetic attraction on bearings. The use of switched reluctance motor with a long service life of bearings in the traction drive system will make it possible to obtain a new competitive rolling stock.
The study of the dependence of magnetic field gradient on parameters of the part being tested by the pulsed magnetic non-destructive testing method
Authors:   Lugansk State University  named after Vladimir Dal, Tarasenko O. V. , Kreselyuk Yu. V. ,   Lugansk State University  named after Vladimir Dal, Ivlev M. N. ,   Lugansk State University  named after Vladimir Dal
Published: December 2023

An assessment is made of the influence of the parameters of a controlled part by the magnetic method of non-destructive testing on the gradient of the magnetic field strength of the measuring transducer. A simplified design of a pulsed gradiometric transducer is presented, and its parameters for conducting experiments are indicated. A mathematical model for calculating the output signal of a gradiometer fluxgate used to obtain output data is considered. The dependences of the magnetic field intensity gradient on the distance between the sensor and the plane of the controlled part, on the coercive force and thickness of the hardened layer, as well as on the thickness of the controlled part are studied. Conclusions are drawn based of the experiment performed.
Contribution to the knowledge of beetles (Coleoptera) inhabiting rodent burrows in Turkmenistan
Authors:   Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, 101, Borok, Yaroslavl Region, 152742, Russia, Sazhnev A.S. ,   Cherepovets State University, 5 Lunacharskiy av., Cherepovets, 162600, Russia, Ermakov N.M. ,   Russian Research Anti-Plague Institute “Microbe”, 46 Universitetskaya Str., Saratov, 410005, Russia, Kondratyev E.N. ,   Russian Research Anti-Plague Institute “Microbe”, 46 Universitetskaya Str., Saratov, 410005, Russia
Published: December 2023

Animal burrows contain peculiar ecosystems. The rodent burrows are often inhabited by many arthropod species, including beetles (Coleoptera). During our research in Turkmenistan (1976–1988) beetle communities of the burrow of two gerbil species (Meriones libycus and Rhombomys opimus) were studied. A total, 56 beetle species from 11 families were found in gerbil burrows. Among those, 11 species (19.6%) are bothrobionts: Aleochara jacobsoni, Atheta flagellicornis, Coprophilus dimidiatipennis, Sunius nidicola (Staphylinidae), Erebidus vlasovi, Pholioxenus phoenix (Histeridae), Onthophagus psychopompus, Ontho¬phagus vlasovi, Orodaliscus transaralicus (Scarabaeidae), Attagenus duplex (Dermestidae) and Cryptophagus quadrimaculatus (Cryptophagidae).
Efficacy of erbium yttrium aluminium garnet laser on post-traumatic scars among Indian population – A non-randomized study
Authors: Chittoria Ravi Kumar , Nishad K. , Parthiban BarathKumar Singh
Published: December 2023

Objectives:

The post-trauma scar is a common problem; it can produce physical and psychological difficulties to the patient. The use of ablative and non-ablative lasers based on the fractional approach is emerging as a method to treat scars. However, very limited data are available of the same in patients of South India. In this study, the authors demonstrated the efficacy of ablative fractional resurfacing (AFR) for traumatic scars using a 2940-nm erbium: yttrium-aluminum-garnet (Er: YAG) laser for the treatment of post-traumatic scars in patients of south India.

Material and Methods:

Seventy-three scars were enrolled in adults of age between 18 and 60 years. Each scar was treated four times at 1-month intervals with a fractional ablative 2940-nm Er: YAG laser using the same parameters. Pre-treatment evaluation before the initiation of the treatment and post-treatment evaluation was performed 1 month after the fourth treatment session of laser. The scar was evaluated using Vancouver scar scale (VSS).

Results:

All 73 scars completed the study. After ablative fractional laser treatment, all treated portions of the scars showed improvements, as demonstrated by the VSS.

Conclusion:

This study shows that ablative fractional application of Er: YAG laser treatment of scars reduces scars fairly. The authors suggest that treatment using AFR can be a adjuvant scar management method for improving the quality of life of patients with post-traumatic scars in patients of south India.
בין מלחמת "יש ברירה" לרציפות תפיסת הביטחון הישראלית: עיון מחודש בתפיסות שהובילו למלחמת לבנון הראשונה
Authors: Naor Dan , Lewin Eyal
Published: December 2023

The Israeli public largely views Israel’s invasion of Lebanon in the summer of 1982 as an unusual event, a deviation from the path that Israel had followed until then. Unlike other wars, Israel did not fight in the Lebanon War for security purposes, but for the political aims and whims of Prime Minister Menachem Begin and Defense Minister Ariel Sharon. Therefore, this war is considered a war of choice, waged by Israel when it was not under an existential threat. The claim that the Lebanon War constitutes an exceptional event in Israeli history is at the heart of this article. In order to determine whether the Lebanon War was indeed a deviation from the “right path” of the State of Israel, we examine it in light of the Israeli security doctrine that had led Israel’s decision-makers until then and that, to some extent, continues to govern them to this day. Using the security doctrine as a guide, we find that this war was not a deviation or an anomaly, but rather an application of Israeli security principles.
Low-load resistance exercise completed to volitional failure decreases pain perception post-exercise in females and males
Authors: Proppe Christopher E. , Rivera Paola M. , Gonzalez-Rojas David H. , Lawson John E. , Hill Ethan C.
Published: December 2023

Exercise-induced hypoalgesia (EIH) is the acute pain reduction post-exercise. Typically, high-intensity and/or long-duration exercise is required to elicit EIH. Alternatively, low-load resistance exercise with blood flow restriction (LL+BFR) may elicit EIH. However, there is conflicting evidence regarding the necessary repetitions and volume load. This study evaluated EIH after 75-repetitions (1×30, 3×15) (BFR-75) and four sets to volitional failure (BFR-F) protocols. Twenty-six participants completed unilateral knee extensions at 30% of maximal strength using a BFR-75 and BFR-F protocol. Pain pressure threshold (PPT) of the rectus femoris was assessed before and after exercise. Repetitions completed, volume load, occlusion time, and PPT were analyzed. Participants completed more repetitions (91.4±30.5), volume load (5,204.9±2,367.0 Nm), and had a longer occlusion time (345.8±76.2 seconds) during BFR-F compared to BFR-75 (73.2±3.7 repetitions, 4,451.1±1,498.1 Nm, 300.5±52.2 seconds, respectively). Collapsed across sex, PPT increased from pre- (3.24±1.91 kgf) to post-exercise (3.76±2.27 kgf) for BFR-F but not BFR-75 (3.51±1.67 to 3.68±2.04 kgf). The results indicated that BFR-F, but not BFR-75, elicited EIH, as assessed by an increase in PPT. Lower loads used during LL+BFR may be a clinically relevant alternative to high-intensity and/or long-duration exercise in populations that may not tolerate high-intensity or prolonged exercise to induce EIH.
"Style that leaves nothing to be desired": Whanganui's Ladies Club of 1897
Authors: Flutey Scott
Published: December 2023

In 1897, a new, purpose-built institution made national headlines when it opened in the colony's fifth-largest centre. The Wanganui Ladies' Club was marketed as the first and only club of its kind, and was based on a Gentlemen's Club model catering to the upper classes of town and country. Designed by local architect William Pinches, a public tea room allowed non-members access to part of the building and much was made of its points of difference. In the immediate wake of women's suffrage being granted, proprietor Harriet Cameron was riding the crest of a wave of local women leading new, public-oriented lives. Described as artistic and luxurious, the interior was perhaps the most lavishly decorated in town. Photographs of it were widely published and the Ladies' Club seemed poised to become a fashionable social and political hub of the district. Yet within five years the club had dissolved, and the building would be lost only twenty-five years later. Its demolition reflected a wider shift in values and aesthetics, and the declining influence of the British-modelled established gentry over the region's cultural life.

This paper will visit the interior of the lost Ladies' Club through sharing recent research on the building. It will examine a few contemporary local 1890s interiors which have survived, and look at high society club culture which has survived in the town against the odds.
Inside-Out, or Outside-in?: Woman in a glasshouse at the residence of Louis P Christeson at 213 Willis Street, Wellington (ca 1890s)
Authors: Wood Peter
Published: December 2023

This research draws its subject, and its sub-title, from a photograph taken by Louis P Christeson, in which a female figure is depicted tending to the potted inhabitants of a small conservatory. Using this image as a reference point, this paper discusses the conservatory as a transgressive space that is neither properly inside, nor properly outside, the houses and gardens they are associated to. Specifically, a conservatory enables the creation of fertile artificial climates to support flora specimens that would otherwise not find a horticulturally receptive environment. As an architectural technology, its history well precedes the 1890s, but it is in this decade that the conservatory's role expanded from its agricultural origins to affect representations of social and cultural transaction. Or, in simple terms, though the 1890s a conservatory was increasingly just as likely to feature people as it was plants.

With conservatories, simple divisions of interiority and exteriority, and normative expectations of public and private distinctions, become far more mobile in their spatial classifications. In this regard, the 1890s are a particularly important decade for the conservatory as it shifted from being a tool of horticultural propagation to become a new expression of social and cultural production that conflated the distinctions between interior and exterior, and linking this to individual economic progress. Bringing this argument back to my reference photograph, I suggest that for Louis P Christeson, the conservatory was profoundly important symbol of middle-class arrival as exemplified by home ownership and leisure interests, both of which utilised the conservatory as a "third-space." It cannot be claimed that the conservatory led societal evolution, but it does provide a useful architectural touchstone for registering how the relationship between interior and landscape changed as a consequence.
BAHAN AJAR PENGELOMPOKAN HEWAN BERDASARKAN JENIS MAKANANYA BERBASIS MULTIMEDIA DI KELAS 5 SDN MEKARMUKTI 1
Authors: Supriatna Jajang , Nurjaman Widi , Mohammad Fierza Nanda
Published: December 2023

Education in the 21st century begins to integrate skills, knowledge, skills and attitudes, as well as mastery of information and communication technology. Innovative learning models and teaching materials such as multimedia-based learning systems play a very important role in the development of children's education. In accordance with these needs, this study aims to design a learning media about animal grouping for students in elementary schools that is interactive as well as a display that can attract students so that it can increase students' enthusiasm for learning and understanding efficiently. Provide learning media about the introduction of animal groupings with animation and animal cartoon characters making it easier for children to learn natural sciences, especially the introduction of various types of animals. This study uses a multimedia development methodology. The multimedia method according to Luther & Sutopo consists of several stages, the first stage is the concept, this stage determines the learning objectives, user identification, application concepts and devices used. The second stage is design, this stage is carried out by designing pages, storyboards and navigation structures. The third stage is collecting material, this stage collects the materials needed in making the program. The fourth stage is assembly, in that stage the application begins to be made according to the design in the second stage and combines it with the materials that have been collected in the third stage. The fifth stage is testing, at this stage testing is carried out by application makers and users. The sixth stage is distribution, the last stage the application is saved to the storage media. The application of learning media for the introduction of animal grouping is made as attractive as possible by prioritizing visual uniqueness with animation and the addition of video features. The application of learning media for the introduction of animal grouping is made with materials that are in accordance with the competencies and learning materials