bluuebunny/crossref_metadata_2025 huggingface dataset:
Statements and open problems on decidable sets \mbox{${\mathcal X} \subseteq \N$} that
contain informal notions and refer to the current knowledge on ${\mathcal X}$
Authors:   FACULTY OF PRODUCTION AND  POWER ENGINEERING
UNIVERSITY OF AGRICULTURE
BALICKA 116B, 30-149 KRAKÓW, POLAND, TYSZKA APOLONIUSZ
Published: October 2024

For a set \mbox{${\mathcal X} \subseteq \N$} whose infiniteness is false or unproven,
we define which elements of ${\mathcal X}$ are classified as known.
No known set \mbox{${\mathcal X} \subseteq \N$} satisfies Conditions~{\tt (1)-(4)}
and is widely known in number theory or naturally defined, where this term has only informal meaning.
{\em
{\tt (1)}~A~known algorithm with no input returns an integer $n$ satisfying
\mbox{${\rm card}({\mathcal X}) \omega \Rightarrow$} \mbox{${\mathcal X} \subseteq (-\infty,n]$}.
{\tt (2)}~A~known algorithm for every \mbox{$k \in \N$} decides whether or not \mbox{$k \in {\mathcal X}$}.
{\tt (3)}~No known algorithm with no input returns the logical value of the statement \mbox{${\rm card}({\mathcal X})=\omega$}.
{\tt (4)}~There are many elements of~${\mathcal X}$ and it is conjectured, though so far unproven,
that ${\mathcal X}$ is infinite.
{\tt (5)} ${\mathcal X}$ is naturally defined. The infiniteness of ${\mathcal X}$ is false or unproven.
${\mathcal X}$ has the simplest definition among known sets \mbox{${\mathcal Y} \subseteq \N$} with the same set of known elements.}
The set \mbox{${\mathcal X}=\{n \in \N:$}
\mbox{$the~interval~[-1,n]~contains~more~than$}
\mbox{$29.5+\frac{\textstyle 11!}{\textstyle 3n+1} \cdot \sin(n)~primes~of~the~form~k!+1\}$}
satisfies Conditions~{\tt (1)-(5)} except the requirement that ${\mathcal X}$ is naturally defined.
\mbox{$501893 \in {\mathcal X}$}. Condition~{\tt (1)} holds with \mbox{$n=501893$}.
\mbox{${\rm card}({\mathcal X} \cap [0,501893])=159827$}.
\mbox{${\mathcal X} \cap [501894,\infty)=\{n \in \N:$} $the$ $interval$ $[-1,n]$ $contains$ $at$ $least$ $30$ $primes$
$of$ $the$ $form$ $k!+1\}$. We present a table that shows satisfiable conjunctions of the form
$\#{\rm (Condition}~{\tt 1}{\rm )} \wedge {\rm (Condition}~{\tt 2}{\rm )} \wedge \#{\rm (Condition}~{\tt 3}{\rm)} \wedge
{\rm (Condition}~{\tt 4}{\rm )} \wedge \#{\rm (Condition}~{\tt 5}{\rm )}$,
where $\#$ denotes the negation $\neg$ or the absence of any symbol.
No set \mbox{${\mathcal X} \subseteq \N$} will satisfy Conditions~{\tt (1)-(4)} forever,
if for every algorithm with no input,
at some future day, a computer will be able to execute this algorithm in $1$~second or less.
Fusion frame and its alternative dual in tensor product
of Hilbert spaces
Authors:   DEPARTMENT OF PURE MATHEMATICS
UNIVERSITY OF CALCUTTA
35, BALLYGUNGE CIRCULAR ROAD,  KOLKATA, 700019, WEST BENGAL, INDIA, GHOSH PRASENJIT , SAMANTA T. K. ,   DEPARTMENT OF MATHEMATICS
ULUBERIA COLLEGE
ULUBERIA, HOWRAH, 711315, WEST BENGAL, INDIA
Published: October 2024

We study fusion frame in tensor product of Hilbert spaces and discuss some of its properties.\,The resolution of the identity operator on a tensor product of Hilbert spaces is being discussed.\,An alternative dual of a fusion frame in tensor product of Hilbert spaces is also presented.
Manju Varghese and Shery Fernandez
Authors:   DEPARTMENT OF MATHEMATICS
COCHIN UNIVERSITY OF SCIENCE AND  TECHNOLOGY
COCHIN-682022
KERALA, INDIA, VARGHESE MANJU , FERNANDEZ SHERY ,   DEPARTMENT OF MATHEMATICS
MAR THOMA COLLEGE FOR WOMEN,  (AFFILIATED TO MAHATMA GANDHI  UNIVERSITY)
PERUMBAVOOR, ERNAKULAM- 683542
KERALA,  INDIA
Published: October 2024

P. S. Das [Sivaramakrishna Das, P. Fuzzy groups and level subgroups. {\it J. Math. Anal. Appl.} {\bf 84} (1981), no. 1, 264--269.] proved that the level subgroups of any fuzzy subgroup of a finite group form a chain. In this paper we extend it to modules and showed that the level submodules of a fuzzy module also form a chain. With the help of these results we introduced fuzzy noetherian module for noetherian modules. Some results are proved for level submodules of any fuzzy module of modules with composition series.
Some considerations about l’H ˆopital-type rules for the
monotonicity
Authors:   COLEGIUL NAȚIONAL ”IANCU DE HUNEDOARA” HUNEDOARA, ROMANIA, MARINESCU DAN ŞTEFAN , MONEA MIHAI ,   COLEGIUL NAȚIONAL ”DECEBAL” DEVA, ROMANIA
Published: October 2024

The aim of this note is to present some results associated to the l'H\^{o}pital-type rules for the monotonicity (LMR). We will prove the monotonicity
of the ratio $\frac{f\left( x\right) -f\left( c\right) }{g\left( x\right)-g\left( c\right) },$ were $c$ is an arbitrary point from the interval $%
\left( a,b\right) $. Also, we extend LMR to the ratio of two higher-order differentiable functions. We complete with some applications of our results.
Mechanism of formation and significance of antimitochondrial autoantibodies in the pathogenesis of primary biliary cholangitis
Authors: Reshetnyak Vasiliy Ivanovich , Maev Igor Veniaminovich
Published: October 2024

Primary biliary cholangitis (PBC) is a chronic cholestatic progressive liver disease associated with cholangiopathies. The detection of antimitochondrial autoantibodies (AMAs) plays an important role in the diagnosis of classical PBC. AMAs are formed against the antigenic component associated with the dihydrolipoyl transacetylase of pyruvate dehydrogenase complex (E2 PDC) localized on the inner membrane of mitochondria. The loss of immune tolerance of E2 PDC in PBC is thought to be the cause of the mechanism of AMA formation and immune-mediated destruction of biliary epithelial cells (BECs) of the small- and medium-sized intrahepatic bile ducts. E2 PDC is not only present in BECs, but is also abundant in the mitochondria of all nucleated cells. The question remains as to why E2 PDC of only small BECs is the target of autoimmune attack. There is no evidence that AMAs have a deleterious effect on BECs. New scientific data has emerged that explains the damage to BECs in PBC by the defect of the biliary bicarbonate (HCO3–) “umbrella” that protects BECs from the detergent action of bile acids under physiological conditions. Disruption of HCO3– production by BECs in PBC leads to changes in the pH of hepatic bile, accompanied by accumulation of bile acids in the small BECs. The detergent action of bile acids leads to damage of membrane structures of BECs and their apoptosis, development of ductulopenia, and intrahepatic cholestasis. For the first time, it has been suggested that under the influence of bile acids, the E2 PDC antigen may undergo conformational changes that alter its immunological properties. E2 PDC becomes a neoantigen that is recognized by the normal (“healthy”) immune system as a foreign antigen, leading to the production of AMAs. For the first time, the authors of this review provide an explanation for why only small BECs are damaged in PBC.
Artificial Neural Network-based Control of a Switched Reluctance Motor for a High-precision Positioning System
Authors: Mahmoud Imed , Khedher Adel
Published: October 2024

This paper presents a approach to control a switched reluctance motor (SRM) in the context of a high-precision positioning system using artificial neural networks (ANNs). The SRM is known for its robustness and simplicity, making it suitable for various applications, including positioning systems where precision is paramount. Traditional control methods often struggle to achieve the desired level of accuracy due to the non-linear and dynamic nature of the SRM. In this study, we propose an advanced control strategy leveraging the adaptive learning capabilities of ANNs. The neural network is trained to capture the intricate relationships between the motor's inputs and outputs, allowing for precise control in real-time. By measuring the electromagnetic torque and phase currents, the neural network is able to estimate the rotor position, facilitating the elimination of the rotor position sensor. The training data set of the neural network consists of magnetization data for the SRM with the electromagnetic torque and current as inputs and the corresponding position as outputs in this set. With a sufficiently large training data set, the artificial neural networks (ANN) can be correlated for appropriate network architecture.
Analysis of Tax Compliance: Utilizing the Theory of Planned Behavior and Cognitive Dissonance Theory Approaches
Authors: Ustman Ustman , Nurkholis Nurkholis , Baridwan Zaki , Ghofar Abdul
Published: October 2024

This research aims to investigate the social psychological influence of taxpayers on tax compliance behavior, focusing on individuals’ thoughts, emotions, and actions. This study investigates how attitude, subjective norms, and perceived behavioral control affect individuals’ tax compliance intention, and how this compliance intention influences tax compliance behavior. The research also examines the role of emotionality and spirituality as moderators between compliance intention and tax compliance behavior. The research employed convenience sampling on Madura Island and gathered 177 respondents. The research employed the Structural Equation Modeling (SEM) technique. This study discovered a notable correlation between attitudes, subjective norms, and perceived behavioral control in relation to compliance intention. The compliance intention does not influence tax compliance behavior. The moderating effect of spirituality also does not enhance the relationship between compliance intention and tax compliance behavior. However, emotionality effectively moderated the relationship between compliance intention and tax compliance behavior. Emotionality can undermine tax compliance behavior due to the taxpayer experiencing hurt feelings or intolerable emotions. This study has significant implications for tax authorities in preserving taxpayers’ emotional well-being through a professional manner.
Burnout and Quality of Work Life on Job Performance: Mediating Role of Job Satisfaction Among Financial Services Employees
Authors: Saputra Mario Chrissendy Dian , Satrya Aryana
Published: October 2024

The ability of company management to sustain employee job performance in the pursuit of organizational objectives is critical due to the intense competition among financial service companies. This study investigates the relationship between burnout, work life quality, job satisfaction, and job performance, examining how job satisfaction mediates the relationship between these factors. The study was conducted to 200 employees of financial services companies in Indonesia. Data was obtained by distributing questionnaires. The method employed is quantitative analysis utilizing SEM PLS analysis. The research findings indicated that: (1) Burnout has a negative and significant impact on employees job performance; (2) Quality of Work Life has a positive and significant impact on employees job performance; (3) Job satisfaction has a positive and significant impact on employees job performance; (4) There is a significant indirect impact of Burnout on Job Performance with Job Satisfaction; (5) There is a significant indirect impact of Quality of Work Life on Job Performance with Job Satisfaction.
Knowledge Management Application Analysis on SME (Study on Tofu SMEs)
Authors: Almira Nadia Elma , Susanta Hari Nugraha , Dewi Reni Shinta
Published: October 2024

Companies currently apply knowledge management at various levels to improve competitive advantage, company performance, and business sustainability. At the small and medium enterprise (SME) level, knowledge management serves as one strategy to sustain the business and address the issue of potential knowledge loss, which could impact the sustainability of the SME business. Additionally, the purpose of knowledge management is to ensure that the next generation can carry on the business and understand the business process. In this paper, the focus is to analyze the knowledge management in one of the tofu SMEs that is still operating after transferring to the second generation with qualitative methods. This paper will use the concept of knowledge management from Fernandez and Sabhwerwal, which consists of four processes: knowledge discovery, knowledge capture, knowledge sharing, and knowledge application.
The Interplay of Knowledge Management, E-Governance, and Business Performance Efficiency: Insights from Saudi Public Sector Institutions
Authors: Alruwaili Rayan Mazki , Al-Khamali Al-Anzi Sultan Majid Muhammad , Awadh M. Alkhasha Abdulmajeed , Benlaria Houcine
Published: October 2024

This study goes more deeply into the critical aspects of understanding knowledge management, e-governance, and performance efficiency in the Saudi public sector. Simultaneously, the main target is first to grasp how these aspects influence this kind of effectiveness, especially in light of this significant Vision 2030 of the State. By utilizing a technique, the research exploited determined it utilitarian of SMART PLS software to model Structural Equation Modeling (SEM) structure. The study involved 170 people, from the highest-level executives to entry-level employees and cross-section management, administration, and IT specialists. The given article will pursue the complexity of the characters’ interactions while revealing some of the book’s central lessons. T for this study tool, an elaborate questionnaire went through an extensive pretest phase where the content validity and reliability were verified through interviews with expert methods. In 2023, over a quarter of a year data collection period, the self-administered questionnaire was distributed to the representatives of different public institutions, which was done during the year 2023. We obtained some necessary information through the data found and processed using the SMART PLS and SEM. Outcomes highlighted the complex and multidimensional interrelationship of knowledge management, e-governance, and business performance efficiency, from which we make the knowledge of various factors facilitating the performance of the public sector offices in Saudi Arabia. Indeed, it is worth mentioning that the research endorses essential elements in line with Vision 2030, adding tangible directions to the policymakers, government leaders, and practitioners aiming to increase the productivity and effectiveness of public sector projects in the Kingdom.
Nimesulido sukeltas medikamentinis hepatitas
Authors: Milašiūtė Renata , Songailė Rugilė , Lazaravičienė Kristina
Published: October 2024

Toksinį hepatitą gali sukelti įvairios toksinės medžiagos: alkoholis, cheminės medžiagos, grybai arba medikamentai. Pasaulyje didėjant nesteroidinių vaistų nuo uždegimo (NVNU) vartojimui, didėja ir šių vaistų sukeliamų nepageidaujamų reakcijų dažnis. Tyrimo tikslas. Apžvelgti medikamentų (nimesulido) sukelto toksinio hepatito klinikinį atvejį ir pateikti literatūros apžvalgą. Metodika. Atlikta mokslinių publikacijų analizė „Pubmed“ bei „Google Scholar“ informacijos paieškos sistemose, vartojant reikšminius žodžius. Rezultatai. Įrodyta, jog NVNU lemia apie 10 proc. vaistų sukelto kepenų pažeidimo atvejų. Nimesulidas gana dažnai siejamas su ūminiu kepenų pažeidimu, kuris gali būti sunkus ir baigtis ūminiu kepenų nepakankamumu, skubios kepenų transplantacijos būtinybe ar net mirtimi. Palyginti su kitais NVNU, nimesulidas turi bene didžiausią riziką sukelti kepenų pažeidimą. Išvados. Nimesulidas yra veiksmingas skausmo ir uždegimo malšinamasis preparatas, tačiau prieš skiriant šį vaistą reikėtų įvertinti galimas nepageidaujamas reakcijas, galinčias sukelti medikamentinį hepatitą, kuris gali komplikuotis ūminiu kepenų nepakankamumu. Nimesulidą rekomenduojama skirti ne ilgesniam kaip 15 d. gydymo kursui, vartojant mažiausią veiksmingą dozę (didžiausia paros dozė – iki 200 mg). Svarbu pacientams paaiškinti nimesulido galimą žalą, vengti vaisto vartojimo ilgą laiką ir didelėmis dozėmis bei nevartoti jo nepasitarus su gydytoju.
Tabako žala ir jos mažinimo priemonės. II dalis. Koncepcija ir geroji praktika
Authors: Rudanov Andrej
Published: October 2024

Šis mokslinis straipsnis yra antrasis iš mokslinių straipsnių ciklo apie tabako žalą ir šios žalos mažinimo priemones, jų teisinę, mokslinę bei klinikinę aplinką, ES ir pasaulio šalių taikomą geriausią praktiką ir jo rezultatus. Šiame straipsnyje aptariama tabako žalos mažinimo koncepcijos istorija, įvairių pasaulio ir ES valstybių narių praktika, taikant priemones ir būdus, kurie mažina rūkymo žalą.
ANALYSIS OF IMPLEMENTED INNOVATIVE TRENDS IN THE HOTEL BUSINESS
Authors: Tsybulka Olexandra , Leshchii Lesya
Published: October 2024

The article examines how the war affected the hotel business of Ukraine and evaluates the measures that were taken at that time. Due to the war, the operation of the hotel had to be changed and these changes are still not final and are developing. The purpose of this study is to examine the approaches that Ukrainian hotels used during the war, with a special emphasis on digitalization, security, and reorientation to domestic travelers. The article also provides suggestions for future projects in the hotel industry in Ukraine after the victory.
Between a Rock and a Hard Place: Economic Sustainability Challenges of the Housing Market. Case of Australia
Authors: Ivanets Oleg , Yang Yiwen
Published: October 2024

The housing market plays an important role in any economy, and it is quite often the source of economic concerns. Right now, due to the rise of interest rates across the world, including in most European countries, the US, Australia, and Canada, the concern about the housing market’s financial sustainability is one of the most debated economic problems. In this paper, we investigate the mutual interdependence of supply, demand, housing prices, and mortgage loans in Australia. The main goal is to test if simple market logic, where demand drives supply, can be applied to the housing market while simultaneously evaluating the impact of mortgage loan rise on this market. Our research provides valuable insights for understanding the complex behavior of the factors, with a set of rather surprising results.
Characterizing the clinical, radiological and serological features of children diagnosed with neuromyelitis optica spectrum disorder at pediatric neurology unit
Authors:   Department of Pediatrics, Al-Sayyab Teaching Hospital, Basrah, Iraq, Jabbar Hayder Kadhim , Saadi Nebal Waill ,   Department of Pediatrics, College of Medicine, University of Baghdad,Iraq,   Children Welfare Teaching Hospital, Baghdad, Iraq
Published: October 2024

Background. Neuromyelitis optica spectrum disorder is a rare autoimmune disease with a chronic inflammatory demyelinating characteristics that affects the central nervous. The aim of the study is to characterize the clinical, serological and radiological features of neuromyelitis optica disease in a sample of children from Iraq. Methods. A cross-sectional descriptive study has been carried out in the period from August 2019 to September 2020, in pediatric neurology ward in Children Welfare Teaching Hospital, Baghdad. In 12 retrospectively gathered cases, the medical registration of the ward was assessed. A total of 13 patients, aged 3-16 years were included. Results. Among the patients, girls represented 61.5% (8), and the females: males ration was (1.6:1). The patients' ages ranged from 3 to 16 years (mean 9.3 ± 4.02 years). All patients younger than 6 years were AQP-ve, in contrast to 15.3% in those older than 6 years. Negative AQP patients equally distributed between males and females. While females predominated in those with AQP positive status (5,71.4%). Weakness of the limbs and sphincteric disturbance were the first two common clinical features in both AQP positive and negative patients. The three most common brain sites insulted were deep white matter (10, 76.9%), periaqueductal area (5, 38.4%), and brainstem (4, 30.7%). All patients showed long spinal lesions, affecting predominantly the cervico-thoracic (61.53%). Conclusion. The demographic characteristics of the present cohort were comparative to that reported in the literature. Transverse myelitis phenotype was the most common and consistent one. Vomiting was more common in AQP +ve patients.
An updated review on the diagnosis and treatment of nocturia in Parkinson’s disease
Authors:   Faculty of Medicine, “Gr. T. Popa” University of Medicine and Pharmacy, Iasi, Romania, Nonglaton Sarah , Schreiner Thomas Gabriel ,   Faculty of Medicine, “Gr. T. Popa” University of Medicine and Pharmacy, Iasi, Romania,   First Neurology Clinic, “Prof. Dr. Nicolae Oblu” Emergency Clinical Hospital, Iasi, Romania
Published: October 2024

Background and objectives. In recent years, neurologists have increasingly focused on the non-motor symptoms of Parkinson's disease, given their significant impact on patients' quality of life. Among these symptoms, nocturia is a common autonomic disturbance. With new insights emerging on its diagnosis and treatment, an updated review of nocturia in Parkinson's disease is essential. Materials and methods. This narrative review is the result of a thorough search in the most important electronic databases (PubMed, Google Scholar, Embase, and Science Direct) for articles published in the English language starting from 1 January 2015 involving human subjects on the topic of nocturia in Parkinson’s disease, focusing on the diagnosis and therapeutic approaches. Results. This section can be divided into three parts, showing the natural flow of understanding, diagnosing, and managing nocturia in Parkinson’s disease. While initially, the most relevant pathophysiological mechanisms are reviewed in detail, the authors offer a diagnosis workflow to facilitate the detection of nocturia among Parkinson’s disease patients. Finally, several strategies for resolving nocturia and other lower urinary tract symptoms are highlighted. Conclusions. Nocturia remains a crucial non-motor symptom in Parkinson’s disease, having a significant negative impact on the patient’s quality of life. Based on current knowledge, the diagnosis of nocturia should be easier and faster, ensuring the use of appropriate treatment options.
The impact of auditory integration on motor functional disorder in children with attention deficit hyperactive disorder (ADHD)
Authors:   Department of Physiotherapy, Galgotias University, Greater Noida, Uttar Pradesh, India, Sharma Chhavi Kumar , Zafar Shahiduz ,   Department of Physiotherapy, Galgotias University, Greater Noida, Uttar Pradesh, India
Published: October 2024

Background and objectives. The primary focus of ADHD research and treatment has been on cognitive and behavioral aspects, there is growing evidence suggesting a significant relationship between ADHD and motor functional disorders. This comprehensive review examines the impact of auditory integration on motor functional disorders in children with ADHD. Materials and methods. We explore the neurological basis of auditory processing in ADHD, the relationship between auditory integration and motor function, and the potential therapeutic applications of auditory integration techniques in improving motor outcomes for children with ADHD. Conclusions. Our analysis encompasses a wide range of studies, including neuroimaging, behavioral, and intervention research, to provide a holistic understanding of this complex interplay motor function among children with ADHD, offering promising avenues for targeted interventions and improved outcomes.
Understanding Power Gating Mechanism Based on Workload Classification of Modern Heterogeneous Many-Core Mobile Platform in the Dark Silicon Era
Authors: Alrudainy Haider , K. Marzook Ali , Hussein Muaad , Shafik Rishad
Published: October 2024

The rapid progress in mobile computing necessitates energy efficient solutions to support substantially diverse and complex workloads. Heterogeneous many core platforms are progressively being adopted in contemporary embedded implementations for high performance at low power cost estimations. These implementations experience diverse workloads that offer drastic opportunities to improve energy efficiency. In this paper, we propose a novel per core power gating (PCPG) approach based on workload classifications (WLC) for drastic energy cost minimization in the dark silicon era. Core of our paradigm is to use an integrated sleep mode management based on workloads classification indicated by the performance counters. A number of real applications benchmark (PARSEC) are adopted as a practical example of diverse workloads, including memory- and CPU-intensive ones. In this paper, these applications are exercised on Samsung Exynos 5422 heterogeneous many core system showing up to 37% to 110% energy efficient when compared with our most recent published work, and ondemand governor, respectively. Furthermore, we illustrate low-complexity and low-cost runtime per core power gating algorithm that consistently maximize IPS/Watt at all state space.
Design and Analysis of Deep Drawing for a Utility Cup
Authors: Waheed Shaik. , Vardhan P. Vivek , Reddy D. Chetan , Krishna B. Vijay
Published: October 2024

Sheet metal forming is one of the widely used processes in the automobile and aerospace industries. This project represents the analysis of the sheet metal forming process mainly deep drawing. ANSYS simulation is being executed to achieve the results of extreme behavior of the product. The main objective of this project is to do the static analysis on the deep drawing operation for a utility cup. The theoretical value will give the dimension of die and punch. From the values obtained, a CAD model is generated in CATIA, making use of the dimensions. This assembly is then converted into the .stp format to import that file into ANSYS. From the simulation, deformation can be obtained; that force required for developing the part.
Drama as an Aid in Academic Learning and Creative Writing: The CBS Radio Mystery Theater
Authors: Anthony Stahl Michael
Published: October 2024

A comprehensive radio series of 1,399 episodes which originally ran seven nights a week from January 1974 to December 1982. The series dealt with a very large expanse of subject matter, not only in classic and modern literature and history, but also at times featured basic facts in the areas of the sciences including chemistry, medicine, astronomy and physics. As a result, the series served, and continues to serve as an effective educational tool in addition to being a source of entertainment very similar in style to the audiobook. It also serves as a virtual template for the study of the art of storytelling and creative writing.
Tracing the translation of community radio news in South Africa: An actor-network approach
Authors: Van Rooyen Marlie
Published: October 2024

In South Africa, community radio is a powerful medium of communication for distributing news and information to particular audiences in specific languages. It is an interactive platform through which remote communities are able to communicate about issues that affect their daily lives. The community radio audience has the opportunity to participate in the day-to-day functioning of the radio station and to express their views about issues at the grassroots level, in the local language(s).
Megjegyzések a nyomozás körüli „időutazás” régi és újabb állomásaihoz
Authors: Tóth Mihály
Published: October 2024

Aim: This study compares the centuries old domestic lessons of the regulations of investigation with the goals and implementation of the current rulings. It examines to what extent the initial experiences of the new rulings have met the expectations.
Methodology: The preparatory character of the investigation, that often determines the subsequent procedure, requires a new approach both to legislation and to jurisprudence to strengthen the concord of practicality, effectiveness and legality.
Findings: Legislation of the preparatory procedure establishing the investigation, as well as the differentiation between the detection and examination phase were carried out with this purpose. The distinctions were made on consistent theoretical basis, with clear delineation of responsibilities, nevertheless it did not result a problem-free operation in practice. This had an impact on the tools, methods and intensity of the prosecution’s supervisory and control powers.
Value: The study concludes that strengthening the independence of detection phase shall not exclude, but indeed justify a more active role of the prosecution service already in this phase of the proceedings. At the same time, creating a less rigid boundary between these two phases of the investigation could facilitate the possibility for a more differentiated prosecution of the offenders, and a more realistic need thereof.
Investigating the impact of time allocation on family well-being in China
Authors: Hong Qianru , Jiao Xukun , Qiu Xiaohang , Xu Aiting
Published: October 2024

This study aims to analyze the relationship between family time allocation patterns and subjective well-being of Chinese married women. Using the fixed-effect ordered logit model and data from CFPS 2014–2018, this study empirically explores the impact mechanism and heterogeneity of family time allocation patterns on married women’s well-being. The results indicate that the mode of working full-time and handling the majority of housework is an impact negatively for women, and this result is robust. Further heterogeneity analysis reveals that market work has a weaker impact on low-educated women’s well-being than housework, but this is reversed for high-educated women. In particular, the single-time poverty brought on by housework specifically reduces women’s well-being, more than that of dual-time poverty of work time and housework time. Also, the happiness efficiency resulting from women reducing housework time will increase with the rise in happiness levels. Accordingly, this paper highlights three policy implications: enhancing happiness effectiveness, optimizing family time allocation patterns, and raising women’s status. The conclusion clarifies the path to gender equality in family labor division and provides new recommendations for relevant nations on how to promote the equalized gender division of labor and enhance the standard of living for women.
Efficiently Searching for Close-in Companions Around Young M Dwarfs Using a Multiyear PSF Library
Authors: Sanghi Aniket , Xuan Jerry W. , Wang Jason J. , Mawet Dimitri , Bowler Brendan P. , Ngo Henry , Bryan Marta L. , Ruane Garreth , Absil Olivier , Huby Elsa
Published: October 2024

We present Super-RDI, a unique framework for the application of reference star differential imaging (RDI) to Keck/NIRC2 high-contrast imaging observations with the vortex coronagraph. Super-RDI combines frame selection and signal-to-noise ratio (S/N) optimization techniques with a large multiyear reference point-spread function (PSF) library to achieve optimal PSF subtraction at small angular separations. We compile an ∼7000 frame reference PSF library based on a set of 288 new Keck/NIRC2

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sequences of 237 unique targets acquired between 2015 and 2019 as part of two planet-search programs designed for RDI, one focusing on nearby young M dwarfs and the other targeting members of the Taurus star-forming region. For our data set, synthetic companion injection-recovery tests reveal that frame selection with the mean-squared error metric combined with Karhunen–Loève Image-Processing-based PSF subtraction using 1000–3000 frames and ≲500 principal components yields the highest average S/N for injected synthetic companions. We uniformly reduce targets in the young M-star survey with both Super-RDI and angular differential imaging (ADI). For the typical parallactic angle rotation of our data set (∼10°), Super-RDI performs better than a widely used implementation of ADI-based PSF subtraction at separations ≲0.″4 (≈5 λ/D), gaining an average of 0.25 mag in contrast at 0.″25 and 0.4 mag in contrast at 0.″15. This represents a performance improvement in separation space over RDI with single-night reference star observations (∼100 frame PSF libraries) applied to a similar Keck/NIRC2 data set in previous work. We recover two known brown dwarf companions and provide detection limits for 155 targets in the young M-star survey. Our results demonstrate that increasing the PSF library size with careful selection of reference frames can improve the performance of RDI with the Keck/NIRC2 vortex coronagraph in

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GRRIS: A Real-time Intrasite Observation Scheduling Scheme for Distributed Survey Telescope Arrays
Authors: Zhang Yajie , Yu Ce , Sun Chao , Hu Yi , Shang Zhaohui , Wei Jizeng , Yang Xu
Published: October 2024

The distributed telescope array offers promise for conducting large-sky-area, high-frequency time-domain surveys. Multiple telescopes can be deployed at each observation site, so intrasite observation task scheduling is crucial for enhancing observation efficiency and quality. Efficient use of observable time and rapid response to special situations are critical to maximize scientific discovery in time-domain surveys. Besides, the competing scientific priorities, time-varying observation conditions, and capabilities of observation equipment, lead to a vast search space of the scheduling. So with the increasing number of telescopes and observation fields, balancing computational time with solution quality in observation scheduling poses a significant challenge. Informed by the seminal contributions of earlier studies on a multilevel scheduling model and global scheduler for a time-domain telescope array, this study is devoted to further exploring the site scheduler. Formulating the observation scheduling of multiple telescopes at the site as a cooperative decision-making problem, this paper proposes GRRIS, a real-time intrasite observation scheduling scheme for the telescope array using graph and reinforcement learning (RL). It employs a graph neural network to learn node features that can embed the spatial structure of the observation scheduling. An algorithm based on multi-agent RL is designed to efficiently learn the optimum allocation policy of telescope agents to field nodes. Through numerical simulations with real-world scenarios, GRRIS can achieve up to a 22% solution improvement over the most competitive scheme. It offers better scalability and subsecond decision speed, meeting the needs of observation scheduling control for future distributed telescope arrays.
A More Precise Measurement of the Radius of PSR J0740+6620 Using Updated NICER Data
Authors: Dittmann Alexander J. , Miller M. Coleman , Lamb Frederick K. , Holt Isiah M. , Chirenti Cecilia , Wolff Michael T. , Bogdanov Slavko , Guillot Sebastien , Ho Wynn C. G. , Morsink Sharon M. , Arzoumanian Zaven , Gendreau Keith C.
Published: October 2024

PSR J0740+6620 is the neutron star with the highest precisely determined mass, inferred from radio observations to be 2.08 ± 0.07 M
⊙. Measurements of its radius therefore hold promise to constrain the properties of the cold, catalyzed, high-density matter in neutron star cores. Previously, Miller et al. and Riley et al. reported measurements of the radius of PSR J0740+6620 based on Neutron Star Interior Composition Explorer (NICER) observations accumulated through 2020 April 17, and an exploratory analysis utilizing NICER background estimates and a data set accumulated through 2021 December 28 was presented in Salmi et al. Here we report an updated radius measurement, derived by fitting models of X-ray emission from the neutron star surface to NICER data accumulated through 2022 April 21, totaling ∼1.1 Ms additional exposure compared to the data set analyzed in Miller et al. and Riley et al., and to data from XMM-Newton observations. We find that the equatorial circumferential radius of PSR J0740+6620 is

12.92

−
1.13

+
2.09

km (68% credibility), a fractional uncertainty ∼83% the width of that reported in Miller et al., in line with statistical expectations given the additional data. If we were to require the radius to be less than 16 km, as was done in Salmi et al., then our 68% credible region would become

R
=

12.76

−
1.02

+
1.49

km, which is close to the headline result of Salmi et al. Our updated measurements, along with other laboratory and astrophysical constraints, imply a slightly softer equation of state than that inferred from our previous measurements.
Understanding Post-main-sequence Stellar Magnetism: On the Origin of Pollux’s Weak Surface Magnetic Field
Authors: Amard Louis , Brun Allan Sacha , Palacios Ana
Published: October 2024

The magnetic field of red giants is still poorly understood today. Close to the core, asteroseismology has revealed magnetic fields of several hundred thousand gauss, but close to the surface, spectropolarimetric observations of the red giant Pollux only showed an average field of the order of 1 G. Using the ASH code, we conduct a series of 3D nonlinear magnetohydrodynamical simulations aiming at modeling the dynamo process operating within the extended convective envelope of a star similar to the red giant Pollux. We find that the dynamo is efficient even for the slow rotation considered and that large-scale fields are generated and maintained. We further test the correlation between the scale of the convective motions and the surface magnetic field geometry by varying the Prandtl number in our simulations. We show in particular that the value and the geometry of the modeled surface field depend directly on the coupling scales between the magnetic and the velocity fields, with larger convective cells leading to a stronger large-scale magnetic field. We also verify that the dynamo and the geometry of the resulting field are robust against a change of the initial conditions. We then compare our simulations to the observed field and find average ∣B

ℓ
∣ of about 7 G for the simulation with large convective cells, and down to 2 G for the smaller-scale simulation, very close to the observed value. Finally, we suggest the possibility of the reversal of the red giant’s magnetic field.
Afterglow Linear Polarization Signatures from Shallow GRB Jets: Implications for Energetic GRBs
Authors: Birenbaum Gal , Gill Ramandeep , Bromberg Omer , Beniamini Paz , Granot Jonathan
Published: October 2024

Gamma-ray bursts (GRBs) are powered by ultrarelativistic jets. The launching sites of these jets are surrounded by dense media, which the jets must cross before they can accelerate and release high-energy emission. Interaction with the medium leads to the formation of a mildly relativistic sheath around the jet, resulting in an angular structure to the jet’s asymptotic Lorentz factor and energy per solid angle, which modifies the afterglow emission. We build a semi-analytical tool to analyze the afterglow light curve and polarization signatures of jets observed from a wide range of viewing angles, and focus on ones with slowly declining energy profiles known as shallow jets. We find overall lower polarization compared to the classical top hat jet model. We provide an analytical expression for the peak polarization degree as a function of the energy profile power-law index, magnetic field configuration, and viewing angle, and show that it occurs near the light-curve break time for all viewers. When applying our tool to GRB 221009A, suspected to originate from a shallow jet, we find that the suggested jet structures for this event agree with the upper limits placed on the afterglow polarization in the optical and X-ray bands. We also find that at early times the polarization levels may be significantly higher, allowing for a potential distinction between different jet structure models and possibly constraining the magnetization in both forward and reverse shocks at that stage.
Variations in the Inferred Cosmic-Ray Spectral Index as Measured by Neutron Monitors in Antarctica
Authors: Muangha Pradiphat , Ruffolo David , Sáiz Alejandro , Banglieng Chanoknan , Evenson Paul , Seunarine Surujhdeo , Oh Suyeon , Jung Jongil , Duldig Marc L. , Humble John E.
Published: October 2024

A technique has recently been developed for tracking short-term spectral variations in Galactic cosmic rays (GCRs) using data from a single neutron monitor (NM), by collecting histograms of the time delay between successive neutron counts and extracting the leader fraction L as a proxy of the spectral index. Here we analyze L from four Antarctic NMs from 2015 March to 2023 September. We have calibrated L from the South Pole NM with respect to a daily spectral index determined from published data of GCR proton fluxes during 2015–2019 from the Alpha Magnetic Spectrometer (AMS-02) on board the International Space Station. Our results demonstrate a robust correlation between the leader fraction and the spectral index fit over the rigidity range 2.97–16.6 GV for AMS-02 data, with uncertainty of 0.018 in the daily spectral index as inferred from L. In addition to the 11 yr solar activity cycle, a wavelet analysis confirms a 27 day periodicity in the GCR flux and spectral index corresponding to solar rotation, especially near sunspot minimum, while the flux occasionally exhibits a strong harmonic at 13.5 days. The magnetic field component along a nominal Parker spiral (i.e., the magnetic sector structure) is a strong determinant of such spectral and flux variations, with the solar wind speed exerting an additional, nearly rigidity-independent influence on flux variations. Our investigation affirms the capability of ground-based NM stations to accurately and continuously monitor cosmic-ray spectral variations over the long-term future.
Active Galactic Nuclei in the Green Valley at z ∼ 0.7
Authors: Woodrum Charity , Williams Christina C. , Rieke Marcia , Hainline Kevin N. , Hviding Raphael E. , Ji Zhiyuan , Kennicutt Robert , Willmer Christopher N. A.
Published: October 2024

We present near-infrared (NIR) spectroscopy using the MMT and Magellan infrared spectrograph for a sample of 29 massive galaxies (

log

M
*

/

M
⊙

≳
10

) at z ∼ 0.7 with optical spectroscopy from the Large Early Galaxy Astrophysics Census (LEGA-C) survey. Having both optical and NIR spectroscopy at this redshift allows us to measure the full suite of rest-optical strong emission lines, enabling the study of ionization sources and the rest-optical selection of active galactic nuclei (AGN), as well as the measurement of dust-corrected Hα-based star formation rates (SFRs). We find that 11 out of 29 galaxies host AGN. We infer the nonparametric star formation histories with the spectral energy distribution fitting code Prospector and classify galaxies as star-forming, green valley, or quiescent based on their most recent specific SFRs. We explore the connection between AGN activity and suppressed star formation, and find that 89% ± 15% of galaxies in the green valley or below host AGN, while only 15% ± 8% of galaxies above the green valley host AGN. We construct the star-forming main sequence (SFMS) and find that the AGN host galaxies are 0.37 dex below the SFMS, while galaxies without detectable AGN are consistent with being on the SFMS. However, when compared to a bootstrapped mass-matched sample, the SFRs of our sample of AGN host galaxies are consistent with the full LEGA-C sample. Based on this mass-matched analysis, we cannot rule out that this suppression of star formation is driven by other processes associated with the higher mass of the AGN sample. We therefore cannot link the presence of AGN activity to the quenching of star formation.
Analytical Models for Secular Descents in Hierarchical Triple Systems
Authors: Weldon Grant C. , Naoz Smadar , Hansen Bradley M. S.
Published: October 2024

Three-body systems are prevalent in nature, from planetary to stellar to supermassive black hole scales. In a hierarchical triple system, oscillations of the inner orbit’s eccentricity and inclination can be induced on secular timescales. Over many cycles, the octupole-level terms in the secular equations of motion can drive the system to extremely high eccentricities via the eccentric Kozai–Lidov (EKL) mechanism. The overall decrease in the inner orbit’s pericenter distance has potentially dramatic effects for realistic systems, such as tidal disruption events. We present an analytical approximation in the test-particle limit to describe individual stepwise increases in eccentricity of the inner orbit. A second approximation, also in the test-particle limit, is obtained by integrating the equations of motion and calibrating to numerical simulations to estimate the overall octupole-level time evolution of the eccentricity. The latter approach is then extended beyond the test particle to the general case. The three novel analytical approximations are compared to numerical solutions to show that the models accurately describe the form and timescale of the secular descent from large distances to a close-encounter distance (e.g., the Roche limit). By circumventing the need for numerical simulations to obtain the long-term behavior, these approximations can be used to readily estimate properties of close encounters and descent timescales for populations of systems. We demonstrate this by calculating rates of EKL-driven migration for Hot Jupiters in stellar binaries.
A new Boulenophrys species (Anura, Megophryidae) from the coastal hills of eastern Fujian Province, China
Authors: Lin Shi-Shi , Chen Hong-Hui , Li Yuan-Hang , Peng Zhao-Ning , Zeng Zhao-Chi , Wang Jian
Published: October 2024

A new species of the genusBoulenophrysis described from the coastal hills of eastern Fujian Province, China. The new taxon can be distinguished from all recognized congeners by a combination of discrete morphological character state differences and genetic divergences in the combined mitochondrial 16S + CO1 genes. We also provide a map showing the distribution pattern ofBoulenophrysspecies in Fujian and a provincial-specific key, which will aid their conservation by helping the local authorities accurately identify species during field identifications and data collection efforts.
The forms of $ (q, h) $-difference equation and the roots structure of their solutions with degenerate quantum Genocchi polynomials
Authors: Kang Jung Yoog , Ryoo Cheon Seoung
Published: October 2024

We construct a new type of Genocchi polynomials using degenerate quantum exponential functions and find various forms of $ (q, h) $-difference equations with these polynomials as solutions. This paper includes properties of the symmetric structures of $ (q, h) $-difference equations and also presents $ (q, h) $-difference equations with other polynomials as coefficients. By understanding the approximate roots structure of degenerate quantum Genocchi polynomials (DQG), which are common solutions to various forms of $ (q, h) $-difference equations, we identify the properties of the solutions.