bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALYSIS OF THE IMPACT OF THE CORONAVIRUS PANDEMIC ON THE SOCIO-ECONOMIC DYNAMICS OF THE FAR EASTERN REGIONS
Authors: BREZGIN V.S.
Published: November 2024

External factors have a significant impact on the economic dynamics and the standard of living of the population, and they, in particular, include the outbreaks of various diseases that take on the scale of an epidemic and temporarily paralyze economic processes. One of the important macro-regions for the Russian economy is the Far Eastern Federal District, characterized by a complex socio-economic dynamic and the implementation of a whole range of state programs. Based on the analysis of some indicators of the population movement, its income structure and the quality of life in the regions of the Far Eastern Federal District, the impact of the COVID-19 pandemic on the socio-economic trends of this region is studied. The authors conclude that the pandemic had a number of negative consequences that intensified the long-term adverse trends, such as a drop in household incomes, negative migration growth, etc.
"Metaprogram"\ of Substantiation of Mathematics and its Value as a Knowledge Tool
Authors: Mihailova N.V.
Published: November 2024

The theoretical analysis of the "metaprogram"\ of substantiation of mathematics, which is in the basis of the modern conceptions of the mathematics development, is made in this paper with the help of the system principle. The biggest instrumental value of mathematics in the development of investigation is that the inner organization and structure of different natural scientific theories is expressed in the abstract language of mathematics.
A Review on Development Prospect of CMTS Based Thin Film Solar Cells
Authors: Rafal A. Abdullah  , Nabeel A. Bakr
Published: November 2024

CMTS is a quaternary semiconductor similar to copper zinc tin sulfide (CZTS) which is nontoxicand abundant on Earth and is a P-type light absorbent material which is suitable for thinfilmsolar cell fabrication and achieves better conversion efficiency of 0.78% , as well as havinga direct energy gap estimated at (1.76 eV) and a high optical absorption coefficient [20] (α≥ 104cm-1). In this paper, the development cases of a Cu2MgSnS4 composite in the thin-film industry,as well as its use in solar cell applications, are summarized. Illustrated and explained thedifficulty related to processing the raw material, the manufacturing procedure, andmanufacturing equipment. Finally, the potential for development of Cu2MgSnS4. Where thefocus was on thin films.
Synthesis of ZnO: Cu and Ag Bimetallic Nanoparticles by Laser Ablation
Authors: Amer M. Hussein  , Jasim M. Mansoor  , Ammar A. Habeeb
Published: November 2024

Nanoparticles (ZnO: Ag and Cu) were prepared using the pulsed laser ablation method in liquid. The prepared samples were characterized by X-ray diffraction patterns (XRD), particle size analysis (PSA), UV-visible spectroscopy, and Zeta potential (ZP). the JCPDS standard card for Zn (01-080-0074) validated the hexagonal ZnO structure by X-ray diffraction for (ZnO) and (ZnO: Cu and Ag). we calculated the average crystal size of all the produced samples, and we observe that the crystal size grows as the ratio of copper and silver doping rises. The UV-VIS results showed excellent absorption bands of 290–345 nm, confirming that the Ag-containing nanocomposites absorb visible light. As a result, the spectral absorption band of pure ZnO widens with the adding of Cu and Ag, and the absorption edge moves towards a longer wavelength. This significant increase in absorption in the visible region indicates that the generated nanocomposites can reach a more significant catalytic activity in the visible region. The energy gap value decreases, namely 2.97, 2.90, 2.87, 2.79, 2.65, and 2.488 eV, respectively, due to the increasing doping ratio of silver and copper. ZP data of colloidal solutions containing (ZnO) and (ZnO: Ag and Cu) nanoparticles exhibits negative values indicating increased stability of the nanoparticles. However, the ZP data was found to be dependent on the concentration of the surfactant, with an increase in the zeta potentials value corresponding to an increase in the concentration of the surfactant. The PSA results showed promising outcomes and the absence of nanoparticle agglomeration. The synthesized particles were analyzed using FESEM and IMAGE J software to indicate if the particles were nano-sized. Additionally, the particles spherical and quasi-spherical shapes were investigated and found to be of minimal nanoscale size.
influence of laser energies on the optical, structural and electrical properties of CdS nanoparticles by laser ablation in distilled water
Authors: Abdalaah Yamamah khaled , Olfat A. Mahmood  , Suaad S. Shaker
Published: November 2024

Various laser energies were used to synthesize cadmium sulfide (CdS) nanoparticle nanostructures in distilled water using pulsed laser ablation. The influence of laser energies on the structural, optical, morphological, and electrical properties of CdS nanoparticles was studied using X-ray diffraction (XRD), UV–Vis spectroscopy, Field Emission Scanning Electron Microscope (FE-SEM), Energy Dispersive X-ray Spectroscopy (EDX), Fourier Transform Infrared Spectroscopy (FTIR), and Hall measurement. The XRD data indicate that synthesized CdS nanoparticles are nanocrystalline and possess a hexagonal wurtzite structure, the lattice constants of CdS nanostructures were calculated to be (a = 4.105), (c = 6.662), and c/a=1.622. The direct optical energy gap of CdS was determined to be between 2.42 and 1.71 eV, depending on the laser energy. In CdS colloidal solution, EDS results demonstrate the presence of Cd and S components. In FT-IR spectra, the Cd–S stretching frequency is detected in the wave number region below 700 cm-1. Electrical analysis revealed that the synthesized CdS nanoparticles were n-type with mobility increasing with laser energy 530, 590 mJ and decreasing with laser energy 650 mJ. The I-V characteristics of (n-CdS NPs/p-Si) displays that the current increased exponentially with increasing voltage, whereas at reverse bias, the current increased slowly with increasing voltage
A Posteriori Error Analysis of the FEM Solution for Generic Linear Second-Order ODEs
Authors: Wahran Shaker  , Mohammad Sabawi
Published: November 2024

In this paper, a posteriori error analysis has been examined and investigated for thecontinuous (conforming) Galerkin finite element method used for solving a generalscalar linear second-order ordinary BVPs.
Lowering head computed tomography radiation dose for craniosynostosis: An institutional change and review of literature
Authors: Bauerle Luke , Lin Steven , Tucker Cody , Eskandari Ramin
Published: November 2024

Definitive diagnosis of Craniosynostosis (CS) with computed tomography (CT) is readily available, however, exposure to ionizing radiation is often a hard stop for parents and practitioners. Lowering head CT radiation exposure helps mitigate risks and improves diagnostic utilization. The purpose of the study is to quantify radiation exposure from head CT in patients with CS using a ‘new’ (ultra-low dose) protocol; compare prior standard CT protocol; summarize published reports on cumulative radiation doses from pediatric head CT scans utilizing other low-dose protocols. A retrospective study was conducted on patients undergoing surgical correction of CS, aged less than 2 years, between August 2014 and February 2022. Cumulative effective dose (CED) in mSv was calculated, descriptive statistics were performed, and mean ± SD was reported. A literature search was conducted describing cumulative radiation exposure from head CT in pediatric patients and analyzed for ionizing radiation measurements. Forty-four patients met inclusion criteria: 17 females and 27 males. Patients who obtained head CT using the ‘New’ protocol resulted in lower CED exposure of 0.32 mSv ± 0.07 compared to the prior standard protocol at 5.25 mSv ± 2.79 (p < 0.0001). Five studies specifically investigated the reduction of ionizing radiation from CT scans in patients with CS via the utilization of low-dose CT protocols. These studies displayed overall CED values ranging from 0.015 mSv to 0.77 mSv. Our new CT protocol resulted in 94% reduction of ionizing radiation. Ultra-low dose CT protocols provide similar diagnostic data without loss of bone differentiation in CS and can be easily incorporated into the workflow of a children’s hospital.
Exaggeration of consequences of low-dose radiation exposures with special reference to cataracts
Authors: Jargin Sergei V.
Published: November 2024

Publications overestimating the medical and ecological sequels of a slight anthropogenic increase in the radiation background have been reviewed recently with examples of different organs and pathological conditions. The overestimation contributed to the strangulation of atomic energy. The use of nuclear energy for electricity production is on the agenda today due to the increasing energy needs of humankind. Apparently, certain scientific writers acted in the interests of fossil fuel producers. Health risks and environmental damage are maximal for coal and oil, lower for natural gas, and much lower for atomic energy. This letter is an addition to previously published materials, this time focused on studies of cataracts in radiation-exposed populations in Russia. Selection and self-selection bias are of particular significance. Apparently, the self-reporting rate correlates with dose estimates and/or with professional awareness about radiation-related risks among nuclear workers or radiologic technologists, the latter being associated with their work experience/duration and hence with the accumulated dose. Individuals informed of their higher doses would more often seek medical advice and receive more attention from medics. As a result, lens opacities are diagnosed in exposed people earlier than in the general population. This explains dose-effect correlations proven for the incidence of cataracts but not for the frequency of cataract surgeries. Along the same lines, various pathological conditions are more often detected in exposed people. Ideological bias and the trimming of statistics have not been unusual in the Russian medical sciences. It is known that ionizing radiation causes cataracts; however, threshold levels associated with risks are understudied. In particular, thresholds for chronic and fractionated exposures are uncertain and may be underestimated.
Study on the barriers and breakthroughs of resilience building in aging Urban communities from the perspective of risk management: A case study of Jin Guang Men community in Xi’an
Authors: Zhao Wen Xin
Published: November 2024

The continuous escalation of social risks has exacerbated the challenges faced by aging urban communities. In this context, resilience building emerges as a critical approach, offering new perspectives and innovative solutions to address these issues. This paper applies the theories of risk society and resilience governance to establish an analytical framework for resilience governance, specifically examining the current status of resilience construction within the Jin Guang Men community in Xi’an. The findings indicate that resilience building within these aging urban communities is hindered by issues such as weak grassroots governance, deficient repair mechanisms, inadequate infrastructure, and a slow pace of information technology adoption. To effectively manage social risks, it is imperative to strengthen party leadership in governance, enhance community self-repair capacities, upgrade infrastructure, and accelerate the application of information technology. These measures are essential for bolstering the risk management capabilities of aging urban communities.
Development of sustainable tourism in Indonesia: Applying the extended theory of planned behavior to encourage eco-friendly practices among tourists
Authors: Bagdja Raden Sugihharto Achmad , Munizu Musran , Nohong Mursalim , Hamid Nurdjanah , Jabbar Israa Natiq
Published: November 2024

The improper disposal of litter by tourists poses a significant threat to tourism destinations worldwide, including in Indonesia. To mitigate marine litter, promoting eco-friendly behavior (EFB) among tourists is essential. This study applies the extended Theory of Planned Behavior (TPB), which posits that an individual’s behavior is driven by their attitudes, subjective norms, and perceived behavioral control, to better understand the factors influencing eco-friendly behavioral intentions. In this research, ecological consciousness and ecological knowledge were added to the traditional TPB framework to gain deeper insights into tourist behavior. Data were collected through a structured questionnaire from 876 visitors to Lake Singkarak, Indonesia. The findings demonstrate that the inclusion of ecological consciousness and ecological knowledge significantly enhances the predictive power of the TPB model in explaining eco-friendly behavioral intentions. Based on these results, raising public awareness, improving government management, and enhancing the quality of lake attractions are recommended to encourage responsible tourism. These measures can reduce litter and conserve lake habitats, ultimately contributing to the sustainability of tourism in the region.
Coir powder-reinforced epoxy resin composites: Fabrication and characteristics analysis
Authors: Faruqui A. Nayeem , Akter Mst. Tamanna , Biswas Ria , Sheikh Md. Rezaul Karim
Published: November 2024

In order to replace conventional materials in the existing composite world, there has been a focus on adopting coir fibres, which are lightweight, adaptable, efficient, and have great mechanical qualities. This study describes the creation of environmentally responsible bio-composites with good mechanical characteristics that employ coir powder as a reinforcement, which has good interfacial integrity with an epoxy matrix. And these epoxy-coir composites supplemented with coir particles are predicted to function as a reliable substitute for traditional materials used in industrial applications. Here, untreated and alkali-treated coir fibres powder were employed as reinforcement, with epoxy resin serving as a matrix. An experimental investigation has been carried out to study the effect of coir powder reinforcement at different weight percentages (5 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, and 30 wt%). The morphological study, followed by a scanning electron microscope (SEM) and an optical microscope (OM), demonstrated that the powder and matrix had the strongest adhesion at 20 wt% coir powder-reinforced composite, with no voids, bubbles, or cracks. Based on the entire investigation, the polymer composite with 20 wt% reinforcement exhibited better mechanical qualities than the other combinations.
New Results About Quadratic Functional Equation on Semigroups
Authors: Akkaoui Ahmed , Fadli Brahim
Published: November 2024

Let S be a semigroup, let (H, +) be a uniquely 2-divisible, abelian group and let φ, ψ be two endomorphisms of S that need not be involutive. In this paper, we express the solutions f : S → H of the following quadratic functional equation

f

(

x
ϕ

(
y
)

)

+
f

(

ψ

(
y
)

x

)

=
2
f

(
x
)

+
2
f

(
y
)

,
 
 
 
 
 
x
,
y
∈
S
,

f\left( {x\varphi \left( y \right)} \right) + f\left( {\psi \left( y \right)x} \right) = 2f\left( x \right) + 2f\left( y \right),\,\,\,\,\,x,y \in S,

in terms of bi-additive maps and solutions of the symmetrized additive Cauchy equation. Some applications of this result are presented.
Visioning Transformative Science Education for Sustainability
Authors: Jeronen Eila , Keinonen Tuula , Kärkkäinen Sirpa
Published: November 2024

This article explores how global citizenship can be seen in the practices of science education in the context of international education policy and Finnish school and teacher education, with a focus on scientific literacy and sustainability education for promoting a sustainable future. Possibilities of science education to promote sustainability are discussed through teaching examples based on socio-scientific approaches. In addition, transformative science education for sustainability is regarded through competence development taking into account different knowledge dimensions. Solving problems however requires not only knowledge but also communicative and strategic and speculative activity. Thus, education must emphasize the main visions of scientific literacy and transdisciplinary perspectives proposed in the literature, supporting students to understand society and everyday socio-scientific challenges from the local to global level and to deal with differing scientific results and uncertain information. Our article presents findings and conclusions that provide opportunities for further work and provide insights into science and educational sustainability practice.
The Interaction of Information Technology Habits and Learning in Young Adulthood
Authors: Zakrizevska-Belogrudova Maija , Steinberga Airisa , Hofmane Anete , Rusmani Argron
Published: November 2024

This study examines the relationship between the habits of young adults in the use of information technologies and the cognitive processes involved in learning. It was found that information technologies have become an irreplaceable part of modern education, offering vast opportunities to access information and resources, thus promoting the learning of young adults. A large research phase was held to qualitatively analyze the impact of expert interviews on information technology usage habits on young adults' cognitive processes and to investigate the changes it can create in the learning process. Data was collected using semi-structured interviews withopen-ended questions. At the end of the research stage, it was found that using information technology in the learning process has positive and negative consequences, as it has changed the way knowledge is acquired and has made information accessible; however, the use of technology creates an illusion that a person is able to multitask. Learning with the help of information technology reduces the visual perception field; moreover, under its influence, a different attitude towards time and the pace of life arises, creating a feeling of lacking time. Various cognitive, emotional, and social disorders intensify; directly affecting young adults' well-being. This study highlights the importance of the interaction of information technology usage habits and cognitive processes in the learning of young adults.
Malmö as a Site of Superdiversity
Authors: Lundstedt Måns , Hellström Anders , Suter Brigitte , Ulceluşe Magdalena
Published: November 2024

This introductory essay locates the discussion of superdiversity in the city of Malmö. It provides information on Malmö's structural diversities, their embedding in political discourses, and their distribution in the city's geography. The essay introduces and discusses the concept of superdiversity in relation to the issue's various contributions and to local conditions in Malmö.
Activists’ Role in the Creation of Möllevången as a Space for Superdiversity
Authors: Hansen Christina
Published: November 2024

This texts revisit some of the observations that I made in my dissertation, focusing specifically on the relation between superdiversity and the reality of political activism today. After a period of declining activity, the Palestinian solidarity movement that emerged in the fall of 2023 has had a major impact, both politically and physically, on Malmö’s activist scene. The movement illustrates how conditions of superdiversity, within a city and within a protest movement, can facilitate unity and solidarity as well as generate challenges, tension, and conflict.
Navigating Borderspaces
Authors: Wittenbecher Fee
Published: November 2024

Grounded in the literature on critical humanitarian and border studies, this research examined the relationship between criminalization and the positionality of non-governmental search and rescue organizations in the context of the European Union’s and, specifically, Italy’s migration governance. It interrogated whether criminalization fosters heightened antagonism towards states and politicizes the civil fleet or if, on the contrary, it leads to an increased humanitarian focus, incorporating SAR NGOs further into the depoliticized EUropean border regime. It conceptualized criminalization and traced its evolution from the early 2000s until 2023. A qualitative content analysis of SAR NGO’s public communication around key moments in criminalization policy shifts was conducted. Two NGOs representing opposite sides of the spectrum between 'political' and 'humanitarian' positionalities were analyzed, enriched by interviews with SAR community members. The findings indicate that criminalization leads to politicization and increased antagonism towards states for both NGOs scrutinized. However, positionality shifts are, to varying degrees, influenced by alternative explanatory factors, particularly path dependency. Overall, the study provided crucial insights into NGO-state relations, shedding light on maritime humanitarian action in the Central Mediterranean and opening new perspectives on European migration governance and humanitarian action in solidarity with people on the move.
Methodological Reflections on the Displacement Narratives from the Polish-Ukrainian Border
Authors: Anastasiia Mykolenko
Published: November 2024

This article explores the methodological and ethical complexities encountered in researching the life trajectories of displaced Ukrainians at the Polish-Ukrainian border during the refugee crisis. Conducted from Summer 2022 to Autumn 2023, this study draws on over 100 semi-structured interviews with displaced Ukrainians, volunteers, and humanitarian workers. The article explores the difficulties of interviewing individuals in transit zones, where the experiences of displacement and trauma are still recent. Key issues include maintaining critical reflexivity as a researcher with a shared cultural background, balancing the dual roles of volunteer and data collector, and preventing retraumatization. The involvement of psychologists for participant screening, although unconventional, proved essential in safeguarding participants' well-being. This study highlights the potential for research in crisis settings to contribute to both data collection and emotional support for participants, offering insights into ethically conducting research with displaced individuals in sensitive environments.
The Union Resettlement Framework: A Strategic Asset, an Alternative to Asylum or an Expression of Humanitarian Values?
Authors: Johan Ekstedt
Published: November 2024

This study investigates the motivations behind the European Union's approach to third-country resettlement, particularly as established in the Union Resettlement and Humanitarian Admission Framework (Regulation (EU) 2024/1340). It builds on existing literature to present a tripartite model of EU resettlement motivations: (1) using resettlement as a strategic asset in foreign policy, (2) positioning resettlement as an alternative to asylum, and (3) upholding humanitarian values. By examining the development and text of the framework, the analysis highlights how the European Union employs resettlement to bolster partnerships with third countries, curb irregular migration, and reinforce diplomatic leverage, while also reflecting internal European Union debates over humanitarianism and migration control. This complex interplay underscores the European Union’s strategic use of resettlement, even as humanitarian motivations are publicly emphasized. The framework ultimately reveals tensions between the EU’s pragmatic and humanitarian commitments, with implications for refugee policy and European integration.
Reimagining Sub-National Water Governance
Authors: Beleyur Prajna , Revi Aromar , Sami Neha
Published: November 2024

Governing water, although not a new challenge, has assumed a renewed significance globally, particularly in the context of multiple emerging crises across social, ecological, economic, and spatial systems. Water governance is a complex and ongoing process involving stakeholders across regions and time-scales, where the future of water is a critical point of discussion in the context of sustainable development in the coming decades. Humans are radically changing and modifying the water cycle: solving the challenge of water governance is critical to the success of the SDGs: water is deeply embedded across all the SDGs and addressing the challenge of water governance requires a ‘systems-thinking’ approach that brings together water, climate change,..
Public Relations in the Post-Truth Era: Evaluating of the Field of Practice from the Perspective of Public Relations Practitioners
Authors: Ergen Emre
Published: November 2024

This study aims to examine public relations practices in the post-truth era from the perspective of public relations practitioners in Turkey. The research was conducted through in-depth interviews using qualitative research methodology. The findings show that public relations practitioners in Turkey have no difficulty in adapting to the requirements of the post-truth era and have adopted the public relations practices of this era. As a result of the research, items that should be integrated into the scope of work of public relations practitioners in the post-truth era were listed. It was also observed that while some participants were mindful of their social and professional ethical responsibilities, others may ignore ethical values to gain persuasion-based advantages. In conclusion, this study contributes to public relations practitioners in Turkey in understanding the challenges and opportunities of the post-truth era. The findings can help public relations practitioners adapt to these changing dynamics in a more informed and effective manner.
Design Of Dynamic System Simulation Model Of Trash Bin Production Process at Harapan Mulya Putri Company
Authors: Yojana Ratna Mira Yojana , Saputra Surya Saputra , Astuti Pudji Astuti
Published: November 2024

Harapan Mulya Putri is a manufacturing company established in 2010. This company produces equipment for cleaning or cleaning tools, hotel equipment, restaurant equipment, household equipment, and traffic signs. Problems encountered by Harapan Mulya Putri company that the number of stainless steel trash backorders will reach 28% in 3 months. This study aims to reduce the number of back orders in the production process of stainless steel trash bins. Reducing the number of back orders is done by designing a simulation model of stainless steel trash bin production. The method used is a dynamic system simulation. Three scenarios are used to maximize the fulfillment of consumer demand. The first scenario is a policy of adding raw materials suppliers send, such as 150 units of stainless steel plates. The simulation results for the first scenario resulted in a 75% decrease in back orders. The second scenario is ordering based on the bill of material grouping to optimize raw material utilization. The simulation results of the second scenario reduced back orders by 56.25%. The third policy scenario is combined with the first and second scenarios. The results of the third simulation show that back orders have decreased by 87.5%. Thus, the selected scenario is the third scenario.
Readiness of Higher Education Faculty for E-Learning in Developing Countries: A Systematic Review
Authors: Modise Mphoentle Puleng
Published: November 2024

This study aimed to investigate academics’ readiness for online teaching in higher education (HE) in developing countries, with a major focus on open distance and e-learning (ODeL) higher education institutions (HEIs) in Africa. A qualitative data collection and synthesis approach was employed through an exploratory configurative systematic review. Four electronic academic databases (Scopus, Web of Science, EBSCOhost, and Sabinet African Journals) were searched using an iterative and systematic process to find relevant studies published between 2010 and March 2021. A total of 457 peer-reviewed papers were retrieved, and 17 studies were selected for inclusion after the screening procedure. Data were imported into the EPPI-Reviewer software program for coding, and coding reports were created and exported to Excel for thematic analysis. The Technological Pedagogical Content Knowledge (TPACK) theory supported and guided this study. Consistent with previous research, this review found that one of the biggest obstacles is that many higher education academics lack the digital skills to facilitate learning and offer student support in online spaces. The shift to online teaching due to the Covid-19 pandemic also revealed significant digital skills gaps in e-learning for higher education educators.
Peripheral pnet of the inguinal region with favorable response to QT-Thalidomide Neoadjuvant
Authors:   Universidad Ricardo Palma. Lima. Perú, Torvisco-Inca Litze , Aliaga-Chávez Rolig ,   Hospital Nacional Arzobispo Loayza. Lima, Perú
Published: November 2024

Introduction: PNETs are neoplasms derived from the neural crest. They are classified into: 1) central PNET, 2) neuroblastoma and 3) peripheral PNET. The objective is to report the case of a 32-year-old female patient with an inguinal tumor with immunohistochemical profile compatible for PNET treated with chemotherapy and induction thalidomide. Case presentation: 32-year-old female patient presented with a tumor in the inguinal region, the biopsy indicated: round cell neoplasm with small nuclei, hyperchromatic and monomorphous; the immunohistochemical profile was synaptophysin positive, neurofilament positive, SOX-11 positive and Ki-67: 70%, induction chemotherapy was started with carboplatin- etoposide and thalidomide achieving a 60% reduction in tumor size, followed by compartmentectomy with regional lymphadenectomy and later adjuvant radiotherapy and maintenance chemotherapy. Conclusions: In this patient, multidisciplinary treatment for pPNET benefited from the use of chemotherapy and thalidomide in the induction phase.
A case report on the comprehensive management of recurrent fractures in polyostotic Paget’s disease
Authors: Chandru S. , Ahamed S. M. Musthaq , Kumar R. Pandi , Duraisingh L. Britto , Kenslin P.
Published: November 2024

Paget’s disease of the bone is a chronic and long-lasting disorder that causes bones to grow larger and become weaker than normal. Pelvis, skull, spine, and leg bones are the most commonly affected bones and Paget’s disease affects just one or a few bones from the skeletal system. This metabolic bone disease does not come with specific symptoms and the people affected are found with no symptoms in some scenarios. However, bone changes occur which can result in ostealgia or osteodynia, malformed and fragile bones prone to recurrent fractures, tumors, inflammation, and arthritis in the joints close to the affected bones. At times, Paget’s illness is discovered by incident during a routine X-ray or blood test. The symptoms can be managed with surgical interventions and medications which improve pain and control the effects of the disease. The exact factor causing the condition is unknown but some factors contributing may include genetic, lifestyle factors, such as poor diet, or bone injury in early life which may trigger the development of Paget’s disease. Our case report explicates about a 70-year-old male patient who had an alleged history of slip and fall at home and sustained an injury to the right thigh and leg. The patient was a known case of Paget’s disease who underwent dynamic hip screw fixation surgery for right femur in the former hospital admission. This case report elaborates on the medical management with calcium and vitamin supplements along with bone modifying agents and surgical intervention proceeded in the recurrent fractures with the underlying mechanism of the illness.
Is minimally invasive evacuation a future option in the management of spontaneous supratentorial intracerebral hemorrhage?
Authors: Ramos-Márquez Alexandra , Ramón Juan F. , Gómez Diego F. , Hakim Fernando , Ordóñez-Rubiano Edgar G.
Published: November 2024

Intracerebral hemorrhage (ICH) carries a high morbidity and mortality. Historically, it has been treated medically, with specific indications for surgical management as a last resort in critical patients. Recently published literature has shown improved functional outcomes in spontaneous ICH patients managed with minimally invasive surgery (MIS) for hematoma evacuation along with medical management. Previously, surgery was believed to be a lifesaving measure; nonetheless, the doors have been opened for future implementation of MIS as a treatment option for spontaneous ICH. This raises questions on how MIS techniques may be implemented in alternative settings, including those where ICH has the highest clinical burden including lower-and middle-income countries.
Functional treatment of strabismus
Authors:   S. Fyodorov Eye Microsurgery Federal State Institution, Tambov branch, Tambov, Russian Federation, Matrosova Y.V. , Fabrikantov O.L. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Tambov branch, Tambov, Russian Federation
Published: November 2024

The manual contains theoretical material about the mechanism of binocular vision, indications and contraindications for orthoptic treatment, basic instruments for the diagnosis and treatment of binocular vision disorders. The concept of diploptics and stereoptics and indications for the transition to these levels of functional treatment are revealed. The material is presented in accordance with the state standard and is an addition to the textbook and lecture course for students, residents and ophthalmologists.
Приближенное вычисление статистической суммы для модели Изинга на гиперкубе
Authors: Б.В. Крыжановский , Л.Б. Литинский
Published: November 2024

Ранее был разработан метод n-окрестностей для приближенного вычисления статистической суммы спиновой системы с произвольной матрицей связи. В настоящей работе эти результаты адаптируются для модели Изинга на гиперкубе произвольной размерности. Решается уравнение состояния, анализируется поведение свободной энергии. Для больших размерностей наша теория хорошо согласуется с результатами компьютерного моделирования. Для малых размерностей имеется заметное расхождение с точными результатами.
Улучшение скалярного нейросетевого дерева, используемого для поиска ближайшего соседа в бинарном пространстве большой размерности
Authors: Б.В. Крыжановский , М.Ю. Мальсагов
Published: November 2024

Рассматривается задача поиска ближайшего соседа в бинарном пространстве большой размерности, где искомая точка является искаженной версией одной из эталонных точек. Ранние исследования показали, что единственными алгоритмами способными решить поставленную задачу являются полный перебор и нейросетевое дерево поиска. В рамках данной задачи алгоритм превосходит по скорости работы полный перебор в десятки раз. Более того, на больших размерностях нейросетевое дерево поиска можно считать точным алгоритмом, т.к. вероятность ошибки не поддается измерению. В настоящей работе предлагается модификация скалярного нейросетевого дерева, которая повышает превосходство алгоритма над полным перебором до сотен раз без потери надежности работы. Получены аналитические оценки вероятности ошибки дерева, а также оценка оптимального числа выходов в корне дерева.
Определение коллизий аппроксимирующих капсул и сфер трехмерных виртуальных динамических объектов
Authors: А.М. Трушин , М.В. Михайлюк
Published: November 2024

Трехмерные виртуальные динамические объекты в системах компьютерного моделирования могут сталкиваться друг с другом. Определение таких столкновений (коллизий) является важной и неотъемлемой частью моделирования динамики виртуальных объектов. В настоящей работе предлагаются алгоритмы определения коллизий аппроксимирующих капсул между собой, а также капсул со сферами
Нечёткие меры и их использование в оценке алгоритмов компьютерного зрения
Authors: А.С. Осипов
Published: November 2024

В статье рассматриваются вопросы, связанные с исследованием производительности алгоритмов компьютерного зрения, в рамках разработанного в НИИСИ РАН эмпирического подхода к их оценке. Данный подход использует элементы нечёткой логики, в частности, нечёткие меры оценки качества алгоритмов. Рассматривается ряд известных мер оценки качества сегментации изображений и предлагается их нечёткий аналог. Применительно к задаче оценки алгоритмов распознавания лиц, вводятся новые нечёткие меры и рассматриваются вопросы их практического использования.
Способы фильтрации SNOOP-запросов в многоядерных микропроцессорах
Authors: А.М. Антонова , М.Е. Барских , П.С. Зубковский
Published: November 2024

Статья посвящена описанию способов построения фильтров для запросов когерентности (snoop-запросов), применяемых в многопроцессорных системах с общей памятью, построенных по архитектуре SMP. Описаны причины возникновения проблем с когерентностью и нарушением целостности данных, а также наиболее распространенные способы обеспечения когерентности в многопроцессорных системах. Недостатком этих методов обеспечения когерентности является увеличение энергопотребления и снижение производительности. В качестве решения указанных проблем предложено использование фильтров запросов когерентности. Представлена классификация таких фильтров и рассмотрены несколько вариантов их реализации.
История сотрудничества США - Россия в области радиационной стойкости электронных систем
Authors: В.С. Першенков
Published: November 2024

Рассмотрена история взаимодействия ученых США и России в области изучения радиационной стойкости электронных полупроводниковых приборов. Отмечены взлеты и падения этого сотрудничества на протяжении последних 25 лет
Синтез аналоговой ЭКБ, устойчивой к ВВФ: архитектурные, структурные, схематические решения
Authors: А.А. Лебедев , В.А. Комлева , Н.М. Клоков , И.И. Ляхчилина , Е.М. Савченко , А.С. Будяков
Published: November 2024

Рассматриваются архитектурные, структурные и схемотехнические решения создания аналоговой биполярной ЭКБ с повышенными точностью и быстродействием, с уменьшенной чувствительностью к воздействию ТЗЧ. Применение таких АИС позволит полностью замещать зарубежные аналоги, обеспечит приемлемую стоимость мелкосерийного производства и повысит длительность жизненного цикла
Ориентация объектов в системах виртуального окружения
Authors: М.В. Михайлюк , Е.В. Страшнов , Д.А. Кононов
Published: November 2024

Одной из важных составляющих в комплексах управления объектами в системах виртуального окружения является задание ориентации объектов. Для задания ориентации летательных аппаратов, кораблей, автомобилей и других средств передвижения часто используются углы Эйлера, т.к. расположение движителей на этих средствах позволяет поворачивать их вокруг своих осей координат. Однако при этом возникает так называемая проблема блокировки кардана. Когда один угол поворота равен 90о, то невозможно однозначно определить остальные углы Эйлера для такой ориентации. Для решения этой проблемы в работе предлагается использовать дополнительный (четвертый) угол. Показывается, что такое использование позволяет однозначно задать ориентацию и избежать блокировки кардана.

Setting the orientation of objects is one of the important components of object control complexes in virtual environment systems. Euler angles are often used to specify the orientation of aircrafts, ships, cars and other vehicles, as the location of the propulsions allows these vehicles to be rotated about their coordinate axes. However, the so-called gimbal lock problem arises. When one rotation angle is 90 degrees, other Euler angles for this orientation are impossible to be definitely determined. To solve this problem, an additional (forth) angle is proposed to use. It is shown that such usage allows the orientation to be definitely specified and avoids the gimbal lock.
Использование z-буфера для поиска столкновений частиц с объектами 3D сцены
Authors: А.В. Мальцев , Е.В. Страшнов
Published: November 2024

В работе предлагается оригинальный подход к решению задачи поиска коллизий систем мелкоразмерных частиц с объектами трехмерных виртуальных сцен с помощью z-буфера (буфера глубины) видеоадаптера. В основе рассматриваемых решений лежит применение распределенных вычислений на современных CUDA-совместимых графических процессорах. Анализ наличия коллизий частиц с объектами, а также вычисление координат точек столкновений в мировом пространстве выполняется в масштабе реального времени.
Необходимость учёта изменения смачиваемости пород при моделировании тепловых методов добычи нефти
Authors: В.А. Юдин , И.В. Афанаскин
Published: November 2024

Рассмотрена возможность изменений смачиваемости пород при применении тепловых методов добычи нефти. Приведён краткий обзор результатов экспериментальных исследований зависимости характера смачиваемости от температуры. Карбонатные породы с повышением температуры становятся более гидрофильными, результаты по песчано-глинистым породам - крайне противоречивы. На простых модельных расчётах проанализировано влияние изменения смачиваемости на динамику разработки, в сравнении с изменением вязкости нефти. Показано, что изменение смачиваемости может как значительно улучшать показатели разработки (в гидрофобных породах), так и заметно ухудшать их (в гидрофильных). Сделан вывод о необходимости детальных исследований в этом направлении, и тщательном рассмотрении возможных изменений смачиваемости при моделировании тепловых методов добычи нефти. Без этого численное моделирование добычи может быть весьма недостоверным.

Possibility of rock wettability changes as a result of using thermal methods of development is considered based on a brief literature review. Brief summary of experimentally obtained rocks wettability changes with temperature increase are presented. Carbonates become more water-wet with temperature increase while experimental results for terrigenous formations are quite ambiguous. On the base of simple computer modelling it is shown that the production history might be improved by wettability changes (in oil-wet rocks) or made worse (in water-wet rocks).A thorough investigation of the problem is proposed under thermobaric conditions of Russian oil fields with viscous oils on which thermal methods are planned to be applied. This is necessary to increase reservoir modeling reliability.
Особенности аномальной подвижности в полностью обедненных КНИ транзисторах
Authors: Н. В. Масальский
Published: November 2024

Обсуждаются вопросы моделирования аномальной подвижности, которая наблюдается в полностью обедненном полевом транзисторе со структурой «кремний на изоляторе» с толстым слоем подзатворного окисла фронтального затвора. Найдено, что аномальное поведение связано с доминированием заряда в канале у обратной поверхности в общем заряде. Это поведение описывается моделью с двумя подвижностями, которые соответствуют фронтальному каналу и каналу вдоль обратной поверхности. Эти две подвижности физически связаны при помощи взвешенной функции следующей из приближения зарядового разделения, и она экстрагируется из экспериментальных данных

Ssues of simulation of anomalous mobility which is observed in fully depleted field transistor with structure "silicon on the insulator" with a thick oxide layer of a front gate are discussed. It is found that the anomalous behavior is defined of domination of a charge in the channel at the back surface in the total charge. This behavior is described by model with two mobility which correspond to the front channel and the channel along the back surface. These two mobility are physically connected by means of the weighed function following from approach of charging division and is extracted from experimental data
Некоторые вопросы эффективности детерминированных алгоритмов распознавания образов с помощью библиотеки OpenCV
Authors: Н.О. Бесшапошников , М.А. Кузьменко , А.Г. Леонов , М.А. Матюшин
Published: November 2024

В настоящее время технология распознавания образов с использованием нейронных сетей занимает существенную часть в программных системах, находящие применения в широких областях науки и техники. Однако, ограниченные компьютерные мощности не позволяют сделать эти решения массовыми. Для обеспечения эффективности алгоритмов распознавания и совмещения реальных и виртуальных объектов воз-можно использовать и детерминированные методы. В статье рассматривается исследование эффективности применения таких методов с использованием библиотеки OpenCV

At present, technology of image recognition using neural networks occupies an essential part in soft-ware systems that find applications in briad areas of science and technology. However, limited computer power does not allow making these decisions massive. It is possible to use deterministic methods to ensure the effectiveness of algorithms for recognizing and combining real and virtual objects. The article examines the effectiveness of using such methods with the OpenCV library
Синтез сценариев управления чрезвычайными ситуациями
Authors: Д.А. Кононов , Р.О. Пономарев
Published: November 2024

Предложен метод сценарного синтеза эффективного сценария для пре-дотвращения чрезвычайных ситуаций в сложных организационно-технических системах на основе исследования базисных режимов их функционирования. Приведен пример сце-нарного синтеза в модели «городская инфраструктура». Разработаны вычислительные ал-горитмы реализации метода. Обсуждаются результаты расчетов

A method for scenario synthesis of an effective scenario for preventing emergencies in complex or-ganizational and technical systems based on research of the basic modes of their functioning is proposed. An example of scenario synthesis in the model "urban infrastructure" is given. Computational algorithms for the implementation of the method have been developed. The results of calculations are discussed
Модель автономного агента, строящего и использующего когнитивную карту
Authors: Т. И. Шарипова , В. Г. Редько , Г. А. Бесхлебнова
Published: November 2024

В статье построена модель автономного агента, который формирует когнитивную карту двумерного пространства и использует эту карту при поисковом поведении. Используется метод нейронного газа, в котором нейронная сеть формируется при обучении агента, память каждого нейрона запоминает определенную точку в пространстве. Исследуется поисковое поведение автономного агента в двумерном лабиринте. Показана возможность резкого сокращения размеров нейронной сети, в которой достаточно запоминать только те точки пространства, в которых сильно меняется окружающая ситуация

The article describes a model of an autonomous agent that forms a cognitive map of two-dimensional space and uses this map in searching behavior. The method of neuron gas is used, in which the neural network is formed by the agent, the memory of each neuron remembers a certain point in space. The searching behavior of an autonomous agent in a two-dimensional labyrinth has been investigated. The possibility of a sharp reduction in the size of the neural network has been demonstrated. It has been shown that it is enough to remember only those space points that correspond to significant changes of surrounding situations
Учёт отжига радиационных эффектов в SPICE моделях МОП-транзисторов для расчётов радиационно стойких КМОП БИС
Authors: И.А. Харитонов
Published: November 2024

Описана расширенная и улучшенная версия SPICE модели МОПТ для расчета характеристик радиационно-стойких КМОП схем. Это достигнуто за счет добавления в модель выражений, описывающих изменения плотностей дырочного заряда в окисле и поверхностных состояний на его границе в зависимости от мощности дозы, времени облучения , электрического поля в окисле. Приведены примеры применения модели для моделирования характеристик МОП транзисторов и КМОП схем при работе в условиях облучения с различной мощностью дозы

An expanded and improved version of our SPICE model for MOS FETs for calculating the characteristics of radiation-hardened CMOS circuits is described. The improvement is achieved by adding to the model expressions that describe changes in the density of the trapped hole charge in the oxide and surface states at its interface, depending on the dose rate, the irradiation time, and the electric field in the gate oxide. Examples of the application of the developed model for simulation of the characteristics of MOS transistors and CMOS circuits operating under irradiation conditions with different dose rates are given