bluuebunny/crossref_metadata_2025 huggingface dataset:
Magnetocaloric effect of FeNi magnetic nanoparticles obtained by the electrical explosion of wire technique
Authors: Kurlyandskaya G. V.  , Arkhipov A. V.  , Beketov I. V.  , Bagazeev A. V.  , Volegov A. S.  , Larrañaga A.  , Mikhnevich E. A.  , Svalov A. V.
Published: August 2023

In this work the structure, magnetic properties and of the magnetocaloric effect of the large batches of magnetic FeNi nanoparticles were studied for selected compositions close to the invar. Nanoparticles were synthesized by the method of the electric explosion of wire using various technological parameters ensuring the difference in their dispersion parameters. The main variable parameter was the degree of overheating of the wire material. The use of different technological conditions for obtaining batches of nanoparticles ensured the difference in their dispersion parameters. Keywords: electric explosion of wire, magnetic nanoparticles, invar composition, magnetic properties, magnetocaloric effect.
Topological bands in metals with helical magnetic order
Authors: Kudasov Yu. B.
Published: August 2023

The effect of a helicoidal magnetic field on the dispersion of conduction electrons in one- and two-dimensional systems is investigated. In a helicoidal periodic magnetic field, there is a special symmetry with respect to the reversal of time, which leads to the peculiarities of the band structure. Using an example of a one-dimensional model system, the topological properties of the band structure in an effective magnetic field corresponding to the 120o-ordering are investigated. In PdCrO2, the 120o magnetic ordering of the dielectric layers of CrO2 creates an unusual spin structure of the Fermi surface in conducting palladium layers. In this case, the umklapp scattering of mobile charge carriers is strongly suppressed, which leads to abnormally high conductivity at low temperatures observed experimentally. Keywords: Helicoidal ordering, Time-reversal symmetry, Band structure, Charge carriers scattering, Metallic delafossites, PdCrO3.
Heating of magnetic powders in the ferromagnetic resonance mode at a frequency of 8.9 GHz
Authors: Stolyar S. V.  , Li O. A.  , Nikolaeva E. D.  , Boev N. M.  , Vorotynov  A. M.  , Velikanov D. A.  , Iskhakov R. S.  , P'yankov V. F.  , Knyazev Yu. V.  , Bayukov O. A.  , Shokhrina A. O.  , Molokeev M. S.  , Vasiliev A. D.
Published: August 2023

Nickel ferrite nanoparticles 4 nm in size were synthesized by chemical deposition. Subsequent annealing at T=700oC for 5 h led to an increase in the particle size to 63 nm. The Mossbauer spectra and the frequency-field dependences of ferromagnetic resonance have been measured. It has been shown that freshly prepared powders are superparamagnetic at room temperature. The kinetic dependences of the heating of nanoparticles in the ferromagnetic resonance mode at a frequency of 8.9 GHz were measured. It was found that the maximum rate of temperature increase in this mode for a ferromagnetic powder is an order of magnitude greater than for the superparamagnetic state (1.2 and 0.13 K/s, respectively). The latter is determined by the saturation magnetization of the studied powders. Keywords: ferromagnetic resonance, superparamagnetic powders, relaxation frequency, frequency-field dependence, heating of powders.
Effect of Friedel Oscillations on the Work Function of Ytterbium Nanofilms
Authors: Kuzmin M.V.  , Mittsev M.A.
Published: August 2023

The effect of standing waves of charge density (Friedel oscillations) generated by an interface of the metallic ytterbium nanofilm single-crystal silicon substrate type on the work function of ytterbium nanolayers has been studied. It is shown that in the range of nanofilm thicknesses from 0 to 8 monatomic layers, the work function has an oscillating character. This feature of the dependence of the work function on the nanofilm thickness is a consequence of the fact that the standing waves change nonmonotonically the power (momentum) of the electric double layer, which exists on the metal surface and affects the work function of the metal. This ultimately determines the oscillating nature of the dependence of the work function on the thickness of the nanofilms. Keywords: surface, nanofilm, work function, Friedel oscillations, electric double layer, ytterbium.
Systems and technologies based on nonlinear transmission lines with ferrite (Review)
Authors: Priputnev P. V.  , Romanchenko I. V.  , Rostov V. V.
Published: August 2023

Nonlinear transmission lines with ferrite have been actively developed and studied for about two decades. At the same time, the first works on this topic date back to the middle of the last century. Nonlinear transmission lines with ferrite find their application in various problems of electrophysics, with the greatest application being found in the problems of pulse sharpening, as delay lines and generators of high-power pulses of microwave radiation. The main scientific and technical results of the development of technologies of nonlinear transmission lines with ferrite are presented in chronological order, starting from lines for sharpening the fronts of voltage pulses, ending with multichannel microwave sources based on them. Keywords: high power microwaves, ferromagnetic materials, pulsed power, electromagnetic shock waves.
Spall strength of polycarbonate at a temperature of 20-185-=SUP=-o-=/SUP=-C
Authors: Cherepanov I. A.  , Savinykh A.S.  , Garkushin G. V.  , Razorenov S. V.
Published: August 2023

The results of the measurements of spall strength of polycarbonate at a maximum compression stress of 0.6 GPa in the initial temperature range of 20-185oC are presented. It has been found a significant decrease in the spall strength when the polycarbonate reached the glass transition temperature. The strain rates in the plastic compression wave are determined depending on the maximum stress under single and stepwise shock compression. The dependences of the shock wave velocity Us --- mass velocity up in the range of maximum shock compression stresses up to 0.8 GPa at different temperatures are constructed. Keywords: Polycarbonate, shock waves, deformation, temperature, spall strength, shock adiabate.
Efecto combinado de cascarilla de arroz carbonizada con fertilizante de liberación controlada en el desarrollo de posturas de Coffea arábica L. Variedad"Isla 6_14"
Authors: Valdés Zayas Delvis , Rodríguez González Lismary , Ortiz Arboláez Amaray , Carrera Sotero Oscar Lorenzo , Pomares Ortega Ursula Cristina , Hernández Quesada Mercedes Cecilia
Published: August 2023

The Jibacoa region is a rice producing region generating high amounts of husk, used as an alternative for fertilizer. The convenience of tube technology for seedling production using rice husk combined with soil, as a substrate, is an option to produce coffee seedlings in the region. The experiment was carried out in the nursery of the Jibacoa Agroforestry Experimental Station, Villa Clara province, Cuba, located at 22°.01'N and 79°.58'W, in the period between November 2019 and June 2020. The effect of different proportions of burned rice husks (BRH)., soil and different Multicote® doses on the development of coffee seedlings established in tubes as containers was evaluated. A factorial completely randomized experimental design was used with 26 treatments. Seven months after the establishment, the variables height, stem diameter, number of paired leaves, leaf area and total dry mass were evaluated in 20 plants per treatment: The treatment consisting of 25% BRH + 75% soil + 3 g of Multicote® reported the highest mean values of height, stem diameter and number of leaves of seedlings of Coffea arabica L Var."Island 6_14.
Smartphone-Assisted Medical Care for Vestibular Dysfunction as a Telehealth Strategy for Digital Therapy Beyond COVID-19: Scoping Review
Authors: Noda Masao , Kuroda Tatsuaki , Nomura Akihiro , Ito Makoto , Yoshizaki Tomokazu , Fushiki Hiroaki
Published: August 2023

Background

Dizziness and vertigo can be caused by various factors, such as peripheral vestibular and central disorders. Although consultations with specialists are advisable when necessary, patients with severe vertigo symptoms may have limited mobility, which may interfere with hospital visits. The spread of COVID-19 has further limited the number of hospital visits for patients with dizziness; therefore, a method of medical care that enables more accurate treatment under time and geographical constraints is needed. Telemedicine has become widespread, owing to the popularity of smartphone and tablet devices in recent years, and the use of devices and systems has made it possible to provide efficient medical care. However, no previous scoping review has mapped existing studies on telemedicine for vertigo and dizziness, and no recommendations have been made regarding which devices and systems should be used for specific diseases.

Objective

The aim of this review was to map and assess previous studies on the use of information communications technology, smartphones, and apps for treating patients with vertigo and discuss the added value of introducing telemedicine to improve the quality of medical care and create an environment that builds security and trust among patients.

Methods

A scoping review was conducted with the methodological framework of Arksey and O’Malley and in accordance with the of the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analysis extension for Scoping Reviews) guidelines. The PubMed, MEDLINE, and Cochrane Library databases were searched to retrieve previous reports on smartphone-assisted telemedicine treatment for vertigo published between January 2000 and May 2023. Two authors independently assessed eligibility and extracted data.

Results

This review included 20 papers that reported devices or systems for telemedicine for vestibular dysfunction. Among studies that reported the use of a device or app, 2 were related to anamnesis and subjective symptoms, 12 were related to objective examination, 7 were related to remote diagnosis, and 7 were related to treatment and rehabilitation.

Conclusions

With the advancement of technology, the use of telemedicine in patients with dizziness may be feasible. In the future, it will be necessary to consider how telemedicine can be used in dizziness treatment and develop an effective treatment system combining in-person medical care and the effective use of devices for the management of severe vertigo and related diseases. The smooth introduction of telemedicine in vertigo treatment is expected to improve the quality of treatment, increase opportunities for patients to receive medical care, and reduce time and travel costs, leading to a sense of security and trust among patients.
Exploring the Feasibility of Using ChatGPT to Create Just-in-Time Adaptive Physical Activity mHealth Intervention Content: Case Study (Preprint)
Authors: Willms Amanda , Liu Sam
Published: August 2023

BACKGROUND

Achieving physical activity (PA) guidelines’ recommendation of 150 minutes of moderate-to-vigorous PA per week has been shown to reduce the risk of many chronic conditions. Despite the overwhelming evidence in this field, PA levels remain low globally. By creating engaging mobile health (mHealth) interventions through strategies such as just-in-time adaptive interventions (JITAIs) that are tailored to an individual’s dynamic state, there is potential to increase PA levels. However, generating personalized content can take a long time due to various versions of content required for the personalization algorithms. ChatGPT presents an incredible opportunity to rapidly produce tailored content; however, there is a lack of studies exploring its feasibility.

OBJECTIVE

This study aimed to (1) explore the feasibility of using ChatGPT to create content for a PA JITAI mobile app and (2) describe lessons learned and future recommendations for using ChatGPT in the development of mHealth JITAI content.

METHODS

During phase 1, we used Pathverse, a no-code app builder, and ChatGPT to develop a JITAI app to help parents support their child’s PA levels. The intervention was developed based on the Multi-Process Action Control (M-PAC) framework, and the necessary behavior change techniques targeting the M-PAC constructs were implemented in the app design to help parents support their child’s PA. The acceptability of using ChatGPT for this purpose was discussed to determine its feasibility. In phase 2, we summarized the lessons we learned during the JITAI content development process using ChatGPT and generated recommendations to inform future similar use cases.

RESULTS

In phase 1, by using specific prompts, we efficiently generated content for 13 lessons relating to increasing parental support for their child’s PA following the M-PAC framework. It was determined that using ChatGPT for this case study to develop PA content for a JITAI was acceptable. In phase 2, we summarized our recommendations into the following six steps when using ChatGPT to create content for mHealth behavior interventions: (1) determine target behavior, (2) ground the intervention in behavior change theory, (3) design the intervention structure, (4) input intervention structure and behavior change constructs into ChatGPT, (5) revise the ChatGPT response, and (6) customize the response to be used in the intervention.

CONCLUSIONS

ChatGPT offers a remarkable opportunity for rapid content creation in the context of an mHealth JITAI. Although our case study demonstrated that ChatGPT was acceptable, it is essential to approach its use, along with other language models, with caution. Before delivering content to population groups, expert review is crucial to ensure accuracy and relevancy. Future research and application of these guidelines are imperative as we deepen our understanding of ChatGPT and its interactions with human input.
Posisi Subjek Tokoh Bahiyah Dalam Novel Imra`Atāni Fī Imra`Atin Karya Nawāl Al-Saʻdāwī: Kajian Subjektivitas Slavoj Zizek
Authors: Kusuma Aneka Riyada
Published: August 2023

Penelitian ini bertujuan untuk mengungkapkan mengenai posisi subjek tokoh Bahiyah dalam novel Imra`atāni fī Imra`atin karya Nawāl Al-Saʻdāwī yang dianalisis menggunakan teori Slavoj Zizek. Konsep The Real yang dikenalkan oleh Zizek merupakan refleksi dari konsep pembentukan subjek yang dikemukakan oleh Lacan yang terdiri dari tiga tonggak utama yaitu riil atau nyata (the Real), simbolik (the Symbolic), dan imajiner (the Imaginary). Proses untuk menuju the Real atau yang Nyata tersebut mendorong subjek untuk melakukan sesuatu yang dapat menjadikannya keluar atau melampaui tatanan simbolik. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kualitatif. Berdasarkan analisis yang telah dilakukan, dapat diambil kesimpulan bahwa tokoh Bahiyah direpresentasikan sebagai subjek yang terjerat dalam tatanan-tatanan simbolik berupa familialisme, humanisme, dan patriarki, dan dia berupaya untuk keluar dari tatanan tersebut. Bahiyah terus berupaya menuju yang Riil dengan menegasikan aturan-aturan ataupun norma-norma yang mengikatnya, dia juga membuat jarak dengan yang Simbolik. Dalam upayanya, dia tidak bisa sepenuhnya keluar dari tatanan simbolik, karena dia masuk kembali ke tatanan simbolik yang baru.
Turki di antara Qatar dan Mesir: Analisis Hubungan Diplomatik Pasca Arab Spring 2011
Authors: Zakaria Zulkhair Abdi
Published: August 2023

Paper ini bertujuan untuk mengungkapkan problematika hubungan bilateral antara Qatar, Mesir dan Turki dengan bermacam dinamika politik internasional yang terjadi. Hubungan ketiganya relatif aman pada dekade 2000 an dan menunjukkan pergolakan ketika adanya gejolak politik dan Arab Spring. Untuk mengungkapkan permasalahan dari ketiga negara, digunakan teori neorealisme dan metode deskriptif kualitatif. Berdasarkan analisis yang telah dilakukan, dapat disimpulkan bahwa revolusi Mesir 2011 mengubah banyak hubungan bilateral, baik antara Turki dan Mesir ataupun Qatar dan Mesir. Setelah adanya peristiwa kudeta Presiden Mursi yang didukung penuh oleh Turki dan Qatar membuat hubungan diplomatik terkendala. Krisis teluk pada 2017 juga memperumit permasalahan antara ketiga negara tersebut. Namun di akhir tahun 2022, tepat pada acara pembukaan piala dunia, Qatar sebagai tuan rumah memulai mediasi antara Mesir dan Turki, yang dinilai sebagai titik awal perubahan diplomasi antara ketiga negara tersebut.
A Study on Identity Construction of First Person Pronouns in Academic Papers from the Perspective of Evidentiality
Authors: Zhao Ziqi, , Wang Xuefei,
Published: August 2023

The first person pronoun plays an important role in identity construction, however, there is few study on it from the perspective of evidentiality. This paper took the first person pronouns as evidentials, and conducted a comparable analysis on the frequency of them and the identities they constructed in academic papers between soft and hard sciences, aiming to find the differences between different discourse communities and explore their preferences for academic identity construction. The results showed that both fields prefer to use plural and subjective cases of first person pronouns, and they both prefer to construct the authorial identity of “researcher”, but scarcely construct the authorial identity of “responsible person”. Researchers in hard science use less evidentials than researchers in soft science, and they prefer to use evidentials “we” and “statement”, which weaken the authorial identity. Evidentials that embody authorial identity, including singular first person pronouns and “participation” evidentials, account for higher proportion in soft science than those in hard science.
Classical models may be a better explanation of the Jiuzhang 1.0 Gaussian Boson Sampler than its targeted squeezed light model
Authors: Martínez-Cifuentes Javier , Fonseca-Romero K. M. , Quesada Nicolás
Published: August 2023

Recently, Zhong et al. [1, 2] performed landmark Gaussian boson sampling experiments with up to 144 modes using threshold detectors. The authors claim to have achieved quantum computational advantage with the implementation of these experiments, named Jiuzhang 1.0 and Jiuzhang 2.0. Their experimental results are validated against several classical hypotheses and adversaries using tests such as the comparison of statistical correlations between modes, Bayesian hypothesis testing and the Heavy Output Generation (HOG) test. In this work we propose an alternative classical hypothesis for the validation of these experiments. We use the probability distribution of mixtures of coherent states sent into a lossy interferometer; these input mixed states, which we term squashed states, have vacuum fluctuations in one quadrature and excess fluctuations in the other. We find that for configurations in the high photon number density regime, the comparison of statistical correlations does not tell apart the ground truth of the experiment (two-mode squeezed states sent into an interferometer) from our alternative hypothesis. On the other hand, the Bayesian test indicates that, for all configurations excepting Jiuzhang 1.0, the ground truth is a more likely explanation of the experimental data than our alternative hypothesis. A similar result is obtained for the HOG test: for all configurations of Jiuzhang 2.0, the test indicates that the experimental samples have higher ground truth probability than the samples obtained from our alternative distribution; for Jiuzhang 1.0 the test is inconclusive. Our results provide a new hypothesis that should be considered in the validation of future GBS experiments, and shed light into the need to identify proper metrics to verify quantum advantage in the context of threshold GBS. Additionally, they indicate that a classical explanation of the Jiuzhang 1.0 experiment, lacking any quantum features, has not been ruled out.
Role Of Guduchi (Tinospora Cordifolia ) In Covid-19– A Review
Authors: Misar Wajpey Sadhana , U. Nimbhorkar Ashish
Published: August 2023

The cause of COVID-19 disease is the newly found corona virus which can transmit from animals to humans. The epidemic commenced in Wuhan city of China in December 2019. It manifests as pyrexia, fatigue, and cough. Symptoms like headache, running nose, congestion, sore throat, and shortness of breath are also seen in several individuals. Currently, no definite medicines are available to prevent and manage Corona disease. Prevention is the only measure to fight against Corona. Ayurveda is the best option having many preventive as well as curative measures. For disease prevention, Rasayanachikitsa (Rejuvenating therapy) is described in Ayurveda, which helps in boosting immunity. This review aims to focus on the immunomodulatory properties of Guduchi and its benefits in the prevention and management of COVID-19 diseases. Related literature and research articles were searched and reviewed thoroughly. Many herbal drugs having Rasayana properties are described in Ayurveda, which help in activating immune system. Immunity is the body's defense mechanism that protects an individual from invading microorganisms and thus prevents disorders caused by them.Guduchi(Tinispora cordifolia) is one of the Rasayanaherbal drugs which can be used in COVID-19. Many research studies conducted onGuduchiproveditsimmunomodulatory, antioxidant, antimicrobial, antiviral, anti-inflammatory, and antipyretic properties. Hence this review is conducted to study the role ofGuduchi in prevention and relieving symptoms of COVID-19. Research studies should be conducted to prove its efficacy and exact mechanism in Coronavirus disease.
ENGLISH TEACHERS’ PERCEPTION ON PRACTICALITY AND USEFULNESS OF ONLINE LEARNING DURING THE COVID-19 PANDEMIC AT TWO JUNIOR HIGH SCHOOLS
Authors: Rahmatika Yulia
Published: August 2023

Since March 2020, the coronavirus disease, also known as COVID-19 has become a global pandemic. According to UNESCO, schools were closed in about 100 countries due to a public health emergency, including Indonesia. The condition forced teachers to make the transition from face-to-face learning to online learning. This study aims to determine the perceptions of EFL teachers about the practicality and usefulness of online learning at two junior high schools in Batang Hari regency, Jambi province. The researcher used a descriptive qualitative design and employed a semi-structured interview to collect the data. The subjects of this research are two English teachers at two Junior High Schools in Batang Hari regency. The findings showed that in terms of practicality, the teachers consider online learning was more practical, flexible, and effecient during online learning. In terms of usefulness, the teachers felt that the use of technology increased their knowledge of using technology, especially on an online platform.
Estado do conhecimento sobre interação docente na produção textual no ensino fundamental híbrido
Authors: Morais Virgínia Maria de , Morosini Marília Costa
Published: August 2023

O estudo aqui apresentado busca examinar como as concepções sobre interação presentes no trabalho docente de produção textual nos anos finais do Ensino Fundamental em contexto de ensino híbrido, se apresentam junto à produção acadêmica de Programas de Pós-Graduação stricto sensu brasileiros, entre os anos de 2014 e 2019, período pré-pandemia. Nesse sentido, na produção dos dados, utilizaram-se os princípios da metodologia Estado do Conhecimento (MOROSINI, 2014), caracterizados pelo foco na pesquisa do tipo revisão de literatura. O material bibliográfico (teses e dissertações) utilizado neste estudo foi disponibilizado pela Biblioteca Brasileira de Teses e Dissertações do Instituto Brasileiro de Informação em Ciência e Tecnologia (BDTD/IBICT), uma base de dados nacional ligada a Programas de Pós-Graduação. Compondo o corpus de análise, trabalhou-se com 25 (vinte e cinco) pesquisas (entre teses e dissertações). Os resultados deste estudo apontam para a complexidade em que se situa o campo de estudo sobre a interação nas práticas pedagógicas com produções textuais elaboradas por alunos nos anos finais do Ensino Fundamental. Ainda mais quando se referem aos temas de investigação privilegiados pela comunidade de pesquisa, a saber, a produção textual e prática pedagógica; abordagens teóricas da produção textual; revisão textual – reescrita.
Fair value accounting and earnings variability: Evidence from global real estate firms
Authors: Thesing Johannes
Published: August 2023

This study explores the relationship between earnings quality and fair value accounting beyond market-based measures, financial industry-related settings, and US firms. It analyzes the effect of discretionary fair value measurement of investment properties and earnings distribution using a sample of 2,658 observations between 2006 and 2017 from real estate firms in 36 countries. The results indicate that applying the fair value model to investment properties subject to International Financial Reporting Standards (IFRS) increases earnings variability and decreases earnings smoothness. These links are found for a fair value model dummy and incrementally for investment property fair values. Managers do not seem to exploit their discretion in lower-level fair value measurements to smooth out further earnings fluctuations. Among fair value model appliers, earnings variability appears to further increase, and earnings smoothness appears to further decrease, in the case of strong investor protection and real estate sector-specific institutional governance.
ADAPTING MITCH ALBOM'S TUESDAYS WITH MORRIE TO FILM: CONVEYING LIFE VALUES
Authors: Syaifullah  , Perrodin David D
Published: August 2023

Using an adaptation and content analysis approach, this study examined the transformation of Mitch Albom's novel "Tuesdays with Morrie" into a film. The primary concern was how this adaptation effectively conveyed the message of life values. The adaptation approach was employed to explore disparities in narrative, characters, and themes when a novel is adapted into a film. The content analysis approach was utilized to identify and analyze the portrayal of life values in both mediums. The data collection involved a comprehensive examination of the novel and a screening of the film adaptation. Relevant elements, including dialogues, narratives, characters, and themes pertaining to life values, were identified and documented. Subsequently, content analysis was conducted to identify patterns, themes, and messages concerning life values. The findings revealed that the film adaptation reflected the life values in the novel similarly, despite alterations and simplifications in the story and characters.
How is polyadenylation restricted to 3' untranslated regions?
Authors: Struhl Kevin
Published: August 2023

Polyadenylation occurs at numerous sites within 3’ untranslated
regions (3’ UTRs) but rarely within coding regions. How does Pol II
travel through long coding regions without generating poly(A) sites, yet
then permits promiscuous polyadenylation once it reaches the 3’ UTR? The
cleavage/polyadenylation (CpA) machinery preferentially associates with
3’ UTRs, but it is unknown how its recruitment is restricted to 3’ UTRs
during Pol II elongation. Unlike coding regions, 3’ UTRs have long
AT-rich stretches of DNA that may be important for restricting
polyadenylation to 3’ UTRs. Recognition of the 3’ UTR could occur at the
DNA (AT-rich), RNA (AU-rich), or RNA:DNA hybrid rU:dA- and/or
rA:dT-rich)
level. Based on the nucleic acid critical for 3’
UTR recognition, there are three classes of models, not mutually
exclusive, for how the CpA machinery is selectively recruited to 3’
UTRs, thereby restricting where polyadenylation occurs: 1) RNA-based
models suggest that the CpA complex directly (or indirectly through one
or more intermediary proteins) binds long AU-rich stretches that are
exposed after Pol II passes through these regions. 2) DNA-based models
suggest that the AT-rich sequence affects nucleosome depletion or the
elongating Pol II machinery, resulting in dissociation of some
elongation factors and subsequent recruitment of the CpA machinery. 3)
RNA:DNA hybrid models suggest that preferential destabilization of the
Pol II elongation complex at rU:dA- and/or rA:dT-rich duplexes bridging
the nucleotide addition and RNA exit sites permits preferential
association of the CpA machinery with 3’ UTRs. Experiments to provide
evidence for one or more of these models are suggested.
An ecological comparison study on the effect of the COVID-19 pandemic on semen quality based on a nationwide loosening of COVID-19 curbs in China at the end of 2022
Authors: Zhang Guang-hui , Ren Jingchao , Zhang Tingting , Feng Ke , Zhang Shengnan , Xia Yanqing , Lu Heng , Liu Mingming , Guo Haibin , Cao Jia
Published: August 2023

Although reports have shown an association between coronavirus disease
2019 (COVID-19) and a reduction in male semen parameters, no population
big-data analyses have been verified. This ecological comparative study
aimed to explore the effects of the COVID-19 pandemic on semen quality.
This ecological comparison study was based on the nationwide loosening
of COVID-19 curbs in China on 2022-12-07, 1 month after which, an 89%
infection rate was reported in Henan Province, China. We compared semen
quality and serum hormone levels from 2023-01-07 to 4-30 and 2022-01-07
to 4-30 at the Reproductive Center of Henan Provincial People’s
Hospital. Our results indicated a significant decrease in semen volume (
P<0.0001), sperm concentration ( P=0.0004),
total sperm count ( P<0.0001), progressive motility (
P<0.0001), and nonprogressive motility (
P<0.0001) after the nationwide loosening of COVID-19
curbs. The effects on semen volume and total sperm count lasted for a
long time. An increase in the rate of sperm neck defects was observed (
P<0.0001). Infection also caused hormone disruption in
prolactin ( P<0.0001), testosterone ( P=0.0220),
sex hormone-binding globulin ( P<0.0001), and free
testosterone index ( P=0.0126), and an increase in estrogen (
P<0.0001), osteocalcin ( P<0.0001),
and 25-OH-VD ( P<0.0001). The present study revealed
that mild COVID-19 appeared to have a detrimental effect on semen
parameters.
Personalized and Explainable Aspect-based Recommendation using Latent Opinion Groups
Authors: Mirzaei Maryam , Sander Joerg , Stroulia Eleni
Published: August 2023

The problem of explainable recommendation—supporting the
recommendation of a product or service with an explanation of why the
item is a good choice for the user—is attracting substantial research
attention recently. Recommendations associated with an explanation of
how the aspects of the chosen item may meet the needs and preferences of
the user can improve the transparency and trustworthiness of
consumer-oriented applications, which is the motivation driving this
research area. Current methods are far from ideal because they do not
necessarily consider the following issues: users’ opinions are
influenced not only by individual aspects but also by the dependency
between sentiments towards aspect; not all users place the same value on
all aspects; and, any explanation are not provided for how the item
aspects have led to the recommendation. We introduce a personalized
explainable aspect-based recommendation method that can address these
challenges. To identify the aspects that a user cares about, our
semantics-aware method learns the likelihood of an aspect being
mentioned in a user’s review. To capture dependency between the users’
sentiments towards an aspect, reviews that express opinions with similar
polarities towards sets of aspects are clustered together in latent
opinion groups. To construct aspect-based explanations, item aspects are
rated according to their importance based on these latent opinion groups
and the preferences of the target user. Finally, to provide a user with
a (set of) useful recommendation(s) of an item, our method selects and
synthesizes the aspects important for the target user. We evaluate our
method over two datasets from (a) Yelp and (b) Tripadvisor. Our results
demonstrate that our method outperforms previous methods in both
recommendation performance and explainability.
Decomposition of the displacements of thin-walled beams with rectangular cross-section
Authors: GRISO Georges
Published: August 2023

The aim of this paper is to decompose the displacements of thin-walled
beams with rectangular cross-section. The decomposition is accompanied
by estimates of all its terms with respect to the norm of the strain
tensor. Korn’s inequality is also given.
An Enhancer Within Abcb11 Regulates G6pc2 in C57BL/6 Mouse Pancreatic Islets
Authors: P. Keller Mark , M. Hawes Emily , L. Schueler Kathryn , S. Stapleton Donnie , A. Mitok Kelly , P. Simonett Shane , K. Oeser James , L. Sampson Leesa , D. Attie Alan , A. Magnuson Mark , M. O’Brien Richard
Published: August 2023

G6PC2 is predominantly expressed in pancreatic islet beta cells where it encodes a glucose-6-phosphatase catalytic subunit that modulates the sensitivity of insulin secretion to glucose by opposing the action of glucokinase, thereby regulating fasting blood glucose (FBG). Prior studies have shown that the G6pc2 promoter alone is unable to confer sustained islet-specific gene expression in mice, suggesting the existence of distal enhancers that regulate G6pc2 expression. Using information from both mice and humans, and knowledge that single nucleotide polymorphisms (SNPs) both within and near G6PC2 are associated with variations in FBG in humans, we identified several putative enhancers 3' of G6pc2. One region, herein referred to as enhancer I, resides in the 25th intron of Abcb11 and binds multiple islet-enriched transcription factors. CRISPR-mediated deletion of enhancer I in C57BL/6 mice had selective effects on the expression of genes near the G6pc2 locus: in isolated islets G6pc2 and Spc25 expression were reduced ~50%, and Gm13613 expression was abolished, whereas Cers6 and Nostrin expression were unaffected. This partial reduction in G6pc2 expression enhanced islet insulin secretion at basal glucose concentrations but did not affect FBG or glucose tolerance in vivo, consistent with the absence of a phenotype in G6pc2 heterozygous C57BL/6 mice.
Guiding and lasing comparison of Nd:YAG waveguide lasers fabricated by femtosecond laser inscription at 515 and 1030 nm
Authors: Gebremichael Wendwesen , Dorrer Christophe , Qiao Jie
Published: August 2023

We report the comparative investigation of fabricating type-II waveguide lasers in Nd:Y3Al5O12 (Nd:YAG) using femtosecond laser pulses at 515 and 1030 nm. We focus on the comparison in track morphologies, modification thresholds, and the overall efficiency of the ultrafast laser inscription (ULI) process in creating these waveguides. For both wavelengths, we demonstrated low propagation losses of 0.2 dB/cm. We achieved the lowest reported lasing threshold of 9 mW in a Nd:YAG waveguide laser. Superior performance was achieved with the 1030-nm ULI source, yielding a slope efficiency over 40% and achieving a lasing threshold at half the value observed for the 515-nm source.
Do emaranhamento ao engambelamento quântico:
Authors: Amaral Gustavo Rick , Marin Ronaldo
Published: August 2023

Este artigo apresenta a primeira parte de um estudo semiótico a respeito das estratégias mobilizadas pela pseudociência para explorar as dificuldades da divulgação científica. Analisamos, do ponto de vista semiótico, uma das principais dificuldades envolvidas na divulgação de teorias científicas complexas para o público de não-especialistas (o público leigo): o problema da distância entre os fenômenos descritos pelas representações teóricas da ciência e a realidade conforme captada pelo aparato sensório humano no contexto cotidiano e entendida pelo senso comum. Aquilo que a ciência descreve não é o que as pessoas veem ou estão acostumadas a achar que veem. O problema básico é a dificuldade de tradução (para fins de divulgação científica) que advém da distância entre a realidade como objeto das representações teóricas científicas e a realidade como objeto das representações corriqueiras do senso-comum e do homem leigo. O foco do artigo está voltado para um caso particular desse problema geral: o campo científico da física quântica e as dificuldades para se explicar a estrutura do átomo para não-especialistas. Utilizamos o aparato teórico e conceitual da semiótica peirceana para analisar um caso particular em que a estrutura atómica é explicada metaforicamente como uma edificação. Um dos principais objetivos é mostrar que o processo de tradução envolvido na divulgação científica possui três camadas que refletem três tipos básicos de conhecimento: o conhecimento de conteúdo, procedural e epistêmico. O principal objetivo da análise é mostrar que parte considerável de nossos problemas na divulgação científica é devido ao fato de que o processo de tradução geralmente se concentra (de forma excessiva) no conhecimento de conteúdo em detrimento dos outros tipos (o conhecimento procedural e epistêmico).
Signo, inferência e crença:
Authors: Cardoso Tarcísio , Barreto Carlos Magno
Published: August 2023

O presente artigo visa explorar partes da teoria semiótica peirceana para esclarecer alguns das fake news e da desinformação. Para a presente reflexão será importante marcar o traço distintivo da semiótica peirceana que vincula inferência, pensamento e signo. O estudo dos signos se revela como uma parte fundamental do estudo da forma dos raciocínios válidos, já que mesmo as falácias (raciocínios inválidos) seguem a forma geral da inferência. Será importante distinguir a validade do raciocínio e a inclinação para a aceitação de uma tese numa abordagem lógica que julga os tipos de passagens de premissas a conclusões e uma abordagem psicológica acerca das impressões de verdade que caracterizam um impulso para a aceitação de uma crença. Entender a semiótica como lógica, de uma perspectiva peirceana, significa também conciliar a teoria do signo a uma teoria da investigação. Isto reclama por respostas à questão da realidade e dos fatos, por um lado, e à das representações e dos discursos, por outro. Para explorar estes aspectos da teoria peirceana e relacioná-los aos fake news e à desinformação, o presente texto se ancora não apenas em textos do próprio Peirce e seus comentadores, mas também nas mais recentes publicações interessada neste tema de autores como Santaella, Ibri, Gomes e Broens, Nöth e Botelho e Baggio. Acredita-se que tal recorte possa somar esforços para que seja possível diferenciar mais claramente fatos e representações, “fatos alternativos” e interpretações alternativas dos fatos, construção social de notícias e autonomia do real em relação a elas, além de uma série de problemáticas semioticamente relevantes, como as noções de crença, alteridade, experiência, erro, mentira e verdade.
Verdade e seus desvios:
Authors: Aguiar Ana Luiza Noblat de , Queiroz Bernardo
Published: August 2023

Na era da informação digital, a comunicação por redes sociais potencializou a circulação de notícias e informações nem sempre verdadeiras. Notícias imprecisas e distorcidas têm sido usadas para poluir a esfera pública e influenciar pessoas. Buscamos com esta pesquisa entender o quanto a ideologia política preexistente influencia a capacidade das pessoas de distinguir notícias verdadeiras de notícias falsas quando expostas a elas vias redes sociais – além de discutirmos a complexidade do termo fake news. Também investigamos até que ponto as câmaras de eco e os filtros-bolha impactam na circulação de determinadas notícias dentro de grupos com perfis ideológicos distintos. Em uma pesquisa de campo que entrevistou 1162 pessoas em todas as regiões do município de São Paulo, foram coletados dados demográficos e político-ideológicos que foram cruzados com as respostas fornecidas para definir se os entrevistados acreditavam ou não nas notícias que lhes foram mostradas durante a entrevista. Cartelas apresentadas pelos auxiliares de pesquisa continham quatro notícias políticas falsas ou imprecisas (que haviam sido desmentidas por pelo menos duas agências de checagem de dados) e duas notícias verdadeiras. Aos entrevistados foi perguntado se já tinham visto aquelas notícias e, no caso de responderem positivamente, se eles acreditavam no que estava sendo dito. Os resultados demonstraram que o viés político-ideológico influencia diretamente a crença das pessoas sobre notícias falsas. Mas, surpreendentemente, os dados não demostraram uma segregação de notícias entre perfis ideológicos distintos. Com isso, não conseguimos comprovar a influência de filtros-bolha ou câmaras de eco na circulação de notícias falsas na cidade de São Paulo em 2018, e atualizaremos este cenário para a discussão do estado da arte em 2022 – novamente ano eleitoral.
E.T.A. Hoffmann e Charles S. Peirce
Authors: Pape Helmut
Published: August 2023

É frequentemente ignorado que, ao entender a percepção como a origem da maioria, se não de todos os conceitos, pensamentos e eventos mentais, E.T.A. Hoffmann é muito mais moderno do que normalmente se supõe. De fato, neste aspecto, ele está próximo de algumas ideias de Peirce e Wittgenstein.
Inteligência Artificial nos Games
Authors: Trevisan Daniel , Braga Alexandre
Published: August 2023

O desenvolvimento acelerado da Inteligência Artificial (IA) e suas proliferan- tes aplicações nas mais diversas áreas de atividades humanas têm chamado a atenção de pesquisadores em vários campos de conhecimento. Entre elas, não poderia faltar a preocupação com a penetração de técnicas de IA nos processos de criatividade humana. Entre os campos culturais e estéticos em que alianças entre produtores e IA se fazem no- tar encontram-se os games. Este artigo está voltado para a discussão dos aspectos mais fundamentais dessa nova aliança.
Cenário internacional da produção científica sobre folga orçamentária:
Authors: Schmidt Jefferson Leandro , Strassburg Udo , Toigo Leandro Augusto
Published: August 2023

O objetivo deste estudo foi analisar o cenário da produção científica sobre a folga orçamentária. A tipologia utilizada é uma revisão sistemática da literatura conduzida conforme a metodologia Preferred Reporting Items for Systematic Reviewsand Meta-Analyses (PRISMA), que consiste em uma lista de itens a serem seguidos como protocolo (Moher et al., 2009). A partir disso, realizou-se uma busca nas bases dados Web Of Science, Emerald, Scopus e Science Direct entre os meses de maio e junho de 2022, empregando-se como descritores; "Budget Slack" or "Budgetary Slack " or "Budgeting Slack" e ainda, com recorte temporal de uma década (2011-2021). Foram encontrados 299 artigos e destes aplicaram-se os critérios de exclusão resultando em 44 artigos. Os achados indicam a existência de 43 temas que se articulam de forma direta e indireta a variável folga orçamentária. Dentre as principais, a participação orçamentária é encontrada em 23 artigos, assimetria informacional (8), honestidade (6), compromisso organizacional (6), cultura (5) e controle orçamentário (4). Quanto as contribuições, a pesquisa proporcionam uma síntese relevante das produções acerca da folga orçamentária para outros pesquisadores do tema os que poderão a partir deste estudo produzir novas reflexões por meio de análise e reflexões críticas.
ANALYTICAL DESIGN OF COMPOSITES IN TERMS OF SYSTEMS ANALYSIS
Authors:   Penza State University of Architecture and Civil Engineering, Penza, Russia, Garkina Irina , Danilov Alexander ,   Penza State University of Architecture and Civil Engineering, Penza, Russia
Published: August 2023

Introduction. The development of composite materials is considered with account for the shifts of paradigms based on the basic models of the continuous self-developing environment towards paradigms based on the models of the structured self-developing environment using the ideas and methods of the system approach and synergetics. The system approach can: reduce or even eliminate the uncertainty inherent to the problem to be solved; reconstruct it in models meeting the objectives of the study; identify objects, properties, and relationships in the system under consideration, taking into account the mutual influence of the external environment. Methods. It is shown that the structural organization of the material determines the design of the product or structure and largely determines the functional properties of the entire system. Composite materials are considered as large, complex systems formed based on a modular principle; material properties are determined on the basis of autonomous studies of individual subsystems. Results. It is assumed that individual subsystems have a certain degree of autonomy; it is possible to introduce customizable reference models with the simultaneous decentralization of modules by inputs; the conditions for transferring the results of autonomous studies to the system as a whole are determined by the completeness of understanding the processes of the formation of the structure and properties of the system. In the development of composites, the relative importance, the mutual utility of the quality criteria, a reasonable balance between the internal logic of science and its practical significance are taken into account. Partial criteria are analyzed, and a generalized quality criterion for the building material is formalized. The following is considered: the complexity of the object of study (multi-dimensionality, multi-connectedness, incompleteness of diagnostic information), diagnostic interpretation of the analyzed factors, the probabilistic nature of diagnostic information (using methods of both concrete and abstract-logical cognition; each new logical stage continues the previous one and serves as a prerequisite for the previous one).
EVOLUTION OF TEMPLE ELEVATIONAL FORM WITH SQUARE CIRCLE METHOD: LAKSHMAN TEMPLE IN SIRPUR
Authors:   Government Girls Polytechnic, Raipur, Chhattisgarh, India, Dewangan Mamta , Agrawal Vandana ,   National Institute of Technology, Raipur, Chhattisgarh, India
Published: August 2023

One of the fundamental methods for shaping the constructional geometry of any building is the use of basic shapes: circles and squares. The circle represents vitality or energy, while the square represents strength. In world history, the concept of geometry traces its origins to construction in Egypt and Babylonia, where proportional systems were described through mathematical equations. They later became known as the Pythagorean Theorem, named after Pythagoras. In Ancient India, the concept of geometry starts with the construction of altars for Vedic sacrifices, as per the instructions of the Śulbasūtras. This involved creating circles and squares, converting squares to circles and vice versa, resulting in altars of various shapes and proportionate systems. The intersection of these basic shapes, the square and the circle, is the key to constructional building geometry. For instance, Vesica Piscis is a geometrical element derived from the circle-circle intersection. It has been applied by researchers to examine the geometry of both ancient and modern buildings. Similarly, the Square-Circle Sequence (SCS) is a method derived from the square-circle intersection. Gandotra (2011) used it to study the constructional geometry of the Hindu temples in North India (Nāgara temples). Meister (1985) also applied the square-circle intersection geometric constructional method to define the proportionate system of the Hindu temples in India. Finally, this study attempts to correlate these types of constructional geometry in the evolution of elevational form of Nāgara temples through Lakshman temple in Sirpur. It determines that the building’s elevational form may be derived from the basic shapes of the circle and the square.