bluuebunny/crossref_metadata_2025 huggingface dataset:
Navigating Stereotypes: Portrayal of Hinduism in OTT Web Series, 2018-2020
Authors: - Subhodeep Mukhopadhyay
Published: October 2023

OTT or “over-the-top” platforms, which facilitate the distribution of film and TV content over the internet, have gained tremendous popularity in India in the last few years. In addition to streaming pre-existing films and TV shows, they produce new original content in the form of web series and other newer formats. Given that the OTT segment is not subject to governmental regulations, content creators can offer varied and innovative content tailored to distinct audience demographics. In addition to entertainment, Indian web series makers also focus on social issues likes patriarchy, racism, inter-religious conflicts, sexuality among others, and portray their stories against the backdrop of certain religious symbolisms, customs and markers. Often, however, in their zeal to locate social evils in the prevalent social milieu, they end up negatively stereotyping Hindus. Through a critical analysis of three popular web series between 2018-2020, this paper investigates the representations of different dimensions of Dharmic religions, especially Hinduism. Using a structural film theoretic approach, the paper specifically attempts to explore to what degree the portrayal of Hindu symbolism and motifs reinforce or dispel specific negative stereotypes against Hindus. The analysis uncovers a consistent trend of negative portrayal of Hinduism in terms of structural elements like camera composition, facial expressions, body language, rituals, and other elements. While absence of regulation allows for greater creative freedom in the OTT space, it also opens the door to content that can be offensive to certain communities, and hence there is a need for responsible content creation by web series developers.
Effects of Taxes on the Development of the Non-Oil Industry Sector: The Case of Azerbaijan
Authors: Aliyev Shafa , Gulaliyev Mayis , Hurshudov Shahin , Hasanova Afet , Salahov Fariz
Published: October 2023

A panel analysis of the relationship between corporate tax rates and GDP per capita, economic growth rate, total capital formation, and non-oil product volume proves that these variables’ dependency on corporate tax rates is weaker. The main finding of the study is that there is a negative relationship between the volume of non-oil industrial products and taxes in Azerbaijan. Based on the results of the research, it can be argued that neither corporate taxes nor general taxes have a significant impact on the production volume of non-oil industrial products in Azerbaijan in the short term. However, there is a negative relationship between taxes and the volume of production of non-oil industrial products in the long run.
Training Future Citizens through Audiovisual Resources
Authors: Polo Escobar Benjamín Roldan , Flores Lezama Marilu Trinidad , Macalopú Rimachi Jessica , Chávez Bejarano Denis Guizela , Mendoza Zuta Jannie Caroll , Cruz Salinas Luis Edgardo , Aguilar Chávez Pablo Valentino
Published: October 2023

This approach is positioned as a vital resource to stimulate learning from different perspectives, generating a major social impact, the particularity of this research was to promote social responsibility and socio-educational training in students of an educational institution in northern Peru. Framed in a descriptive and explanatory analysis, a questionnaire was elaborated in order to know the perception of the students, taking a sample of 120 students, who revealed the metacognitive processes in their construction of knowledge, the reflection on their cognitive abilities, the control and planning of their performance, evidencing an active and significant learning in the development of vital competences.
Endoscopic transgastric fenestration versus percutaneous drainage for management of (peri)pancreatic fluid collections adjacent to gastric wall (with video)
Authors: Zhang Hong-Mei , Ke Hui-Ting , Ahmed Md Robin , Li Ya-Juan , Nabi Ghulam , Li Mu-Han , Zhang Ji-Yu , Liu Dan , Zhao Li-Xia , Liu Bing-Rong
Published: October 2023

Obesity rates have increased, and so has the need for more specific treatments. This trend has raised interest in non-surgical weight loss techniques that are novel, safe, and straightforward. Thus, the present review describes the endoscopic bariatric treatment for obesity, its most recent supporting data, the questions it raises, and its future directions. Various endoscopic bariatric therapies for weight reduction, such as intragastric balloons (IGBs), aspiration therapy (AT), small bowel endoscopy, endoscopic sleeve gastroplasty, endoluminal procedures, malabsorption endoscopic procedures, and methods of regulating gastric emptying, were explored through literature sourced from different databases. IGBs, AT, and small bowel endoscopy have short-term effects with a possibility of weight regain. Minor adverse events have occurred; however, all procedures reduce weight. Vomiting and nausea are common side effects, although serious complications have also been observed.
First record of Oxyligyrus nasutus (Burmeister, 1847) (Coleoptera: Melolonthidae: Dynastinae) from Brazil, damaging plants of açaí palm Euterpe oleracea Mart. (Arecaceae)
Authors: Duarte Paulo R. M. , Mota Adriana A. , Santos Antônio A. R. , Sosa-Duque Francisco J. , Grossi Paschoal C.
Published: October 2023

The açaí palm plays major socioeconomic importance to human populations in North Brazil. Damages caused by pest insects in the orchards are among the main factors that limit açaí production, mainly members of Coleoptera. However, rhinoceros beetles (Dynastinae) had never been observed damaging açaí palms. Here, we noticed the first occurrence of Oxyligyrus nasutus (Burmeister, 1847) (Melolonthidae: Dynastinae: Pentodontini) attacking young açaí plants in the locality of Nova Colônia, Capitão Poço municipality, Pará state, Brazil. The species was observed digging tunnels in the soil near attacked plants. The damages happened through perforation localized at the basal stem part, where the beetles feed on the heart of the palm, preventing its development. This event is a wake-up call for local farmers to avoid the intervention of the edges of floodplains that could be the natural habitat of these insects. In addition, it also represents the first record of O. nasutus from Brazil.
MODEL OF PNEUMOTHERMAL DRYING
Authors: Щеткин Борис Николаевич
Published: October 2023

Для моделей технологических и энергетических процессов пневмотермической сушки (аппаратов) наиболее приемлемыми являются операторы в виде регрессионных уравнений, тем более что они являются оптимальными по критерию минимума среднего квадрата ошибки.

Models for technological and energy processes pnevmotermicheskoy drying (devices) are most suitable operators in the form of regression equations, the more they are optimal for the criterion of minimum mean squared error.
HYPERHAOS HACS, KNUTH AND DURSTENFELD PROVIDE HYPER-STRONG ENCRYPTION OF COLOR IMAGES
Authors: Головков Евгений Владимирович , Грохотов Алексей Игоревич , Кустов Владимир Николаевич
Published: October 2023

В этом исследовании предлагается алгоритм стратегии шифрования изображений, основанный на HACS, и алгоритме скремблирования, для решения проблем ограниченного пространства ключей, небезопасных структур шифрования и простых для взлома существующих методов шифрования. Для начала изображение шифруется с использованием последовательности, сгенерированной с помощью HACS. Эксперименты показывают, что ключевое пространство схемы превышает 2 и что она очень чувствительна к небольшим изменениям в ключах. Гистограмма зашифрованных изображений распределена равномерно. Почти каждый соседний пиксель имеет коэффициент корреляции, равный нулю. Значения UACI и NPCR близки к идеальным, а значения энтропии зашифрованного изображения близки к восьми. Эксперименты показывают, что метод шифрования, описанный в этой статье, может выдержать обширный криптоанализ, такой как статистические и дифференциальные атаки. Результаты исследования показывают, что предложенные система и алгоритм повысили эффективность шифрования, и что разработанный метод полезен и практичен для криптографии изображений.

This study proposes an image encryption strategy algorithm based on HACS and a scrambling algorithm to solve the problems of limited key space, insecure encryption structures and easy-to-crack existing image encryption methods. To begin with, the image is encrypted using a sequence generated using HACS. Experiments show that the key space of the scheme exceeds 2 and that it is very sensitive to small changes in the keys. The histogram of encrypted images is distributed evenly. Almost every neighboring pixel has a correlation coefficient equal to zero. The UACI and NPCR values are close to ideal, and the entropy values of the encrypted image are close to eight. Experiments show that the encryption method described in this article can withstand extensive cryptanalysis, such as statistical and differential attacks. The results of the study show that the proposed system and algorithm have improved the efficiency of encryption, and that the developed method is useful and practical for image cryptography.
MOLECULAR GENETIC ANALYSIS OF THE B.AFZELLI, STRAIN ISOLATED IN THE DPR TERRITORY IN 2023
Authors: Темякова Светлана Юрьевна , Водопьянов Алексей Сергеевич , Писанов Руслан Вячеславович
Published: October 2023

При проведении таргетного секвенирования гена ospA пробы B. afzellii , выделенной на территории ДНР в 2023 году, была построена дендрограмма, отражающая генетическую близость между различными образцами. Установлено, что изучаемая проба попадает в кластер, образованный пробами, выделенными в 2021-2023 годах на территории ЛНР и Ростовской области.

When conducting targeted sequencing of the ospA gene from a B.afzellii sample isolated on the territory of the DPR in 2023, a dendrogram was constructed reflecting the genetic proximity between different samples. It has been established that the sample under study is included in the cluster formed by samples isolated in 2021-2023 on the territory of the LPR and the Rostov region.
MODELS OF DYNAMIC OPTIMIZATION IN ECONOMICS
Authors: Губарева Елена Алексеевна
Published: October 2023

При рассмотрении экономической системы как объекта управления принято оценивать её экономическую политику через сравнение с оптимальной по одному или нескольким критериям качества. Построение и анализ динамической экономико-математической модели позволяют определить оптимальную траекторию управления, которая может обеспечить требуемый критерий качества.

When considering an economic system as an object of management, it is customary to evaluate its economic policy through comparison with the optimal one according to one or more quality criteria. The construction and analysis of a dynamic economic-mathematical model allows us to determine the optimal management trajectory, which can provide the required quality criterion.
Solderability of Additively Manufactured Copper Surfaces
Authors: Wheeling Rebecca , Williams Shelley , Tung Daniel , Juaregui Luis , Profazi Christina , Vieira Matt , Vianco Paul
Published: October 2023

As additive manufacturing technology for copper rapidly evolves, the likelihood for downstream joining like soldering and brazing exists. A solderability study was performed to assess process fundamentals over a variety of AM approaches. The solderability of 7 different copper (Cu) surface types were evaluated using the wetting balance technique: 4 Cu coatings (CP-007 and CP-008 conductive copper pastes, IMC-4118 conductive laser sinter paste, IMC-2501 copper ink), 2 laser processed Cu surfaces, and 1 bulk additively manufactured (AM) Cu coupon type. Laser processed surfaces were subjected to either circular or linear laser raster patterns. AM coupons were fabricated via a powder-bed laser process. In-situ force measurements were recorded while coupons were dipped into and removed from a 63Sn-37Pb (SnPb) or 96.4Sn-3.0Ag-0.6Cu (SAC305) solder bath, allowing contact angles and surface energies to be calculated. Meniscus height values were also measured. Surfaces were characterized before and after dipping via optical and electron microscopy. Results conclusively indicated that although all samples were intended to represent pure Cu, wettability was found to be strongly dependent on surface type with several samples exhibiting no wetting. Although the CP-007 paste performed the best of any non-traditional surface, all nontraditional surfaces saw signifi cant wettability improvements with aggressive cleaning via HCl etching.
Is full reparation in the constitutional context a fundamental right: general analytical references?
Authors: Guerrero Machado Marco Joselito
Published: October 2023

The history of law has shown us that although there are certain institutions that have appeared throughout its development in certain branches of law, it is no less true that in the course of its development other areas have incorporated them to their field of action. This is what presents the current situation of integral reparation in the constitutional context, which has conditioned its most elementary needs in its fulfillment of concrete designs like any other sector of the Law. Due to the characteristics of this juridical institution that starts in Private Law, but that nevertheless the constitutional law also takes it and imposes its own functions on it, we do not hesitate to affirm that reparation is a constitutional right.
Effect of CPAP therapy on the reperfusion lung injury after transluminal balloon angioplasty of the pulmonary arteries in patients with chronic thromboembolic pulmonary hypertension
Authors: Elfimova E. M. , Danilov N. M. , Yarovoy S. Yu. , Mikhailova O. O. , Litvin A. Yu. , Matchin Yu. G. , Chazova I. E.
Published: October 2023

Aim. To evaluate the effect of non-invasive ventilation (NIV) in CPAP (continuous positive airway pressure) mode on the development of reperfusion pulmonary edema after percutaneous balloon pulmonary angioplasty (BPA) in patients with chronic thromboembolic pulmonary hypertension (CTEPH).

Materials and methods. The study included 70 patients with CTEPH who underwent the first stage of BPA. Prevention of reperfusion edema was carried out using NIV in the CPAP mode starting from the early postoperative period in combination with oxygen and diuretic therapy (as nedeed). The presence and severity of pulmonary edema was assessed based on clinical signs and data from computed tomography or chest radiography.

Results. Patients after BPA were on CPAP therapy: average pressure: 10.0±0,7 hPa. During 1st day, the average time of use was: 990±417 minutes. Prolongation of CPAP therapy >1 day occurred in 26 (37%) patients. Depending on the severity of reperfusion edema to the lungs, patients were divided into 2 groups: group 1 (grade 1, n=42) and group 2 (grade 3-4, n=12). During the observation period, there were no cases of severe reperfusion edema (grade 5), and no cases required the use of invasive ventilation or extracorporeal membrane oxygenation. No complications of CPAP therapy were recorded. The number of PA segments and ΔPFG did not differ, but the PEPSI index was higher in group 2: 41,9 [16,0; 57,9] vs 80.5 [52,5; 111,25], p=0,0146. The number of days before discharge after BPA in patients of group 2 was higher: 4.0 [3,9; 5,5] vs 7,0 [4,6; 10,0] days, p=0,013. Despite the development of reperfusion edema, before discharge the SpO2 values in group 2 were comparable to the baseline: 93,0 [89,9; 94,2] vs 93,0 [89,7; 94,4]

Conclusion. Preventive use of NIV in the CPAP mode, starting from the early postoperative period, is safe and makes it possible to achieve optimal clinical results in patients even with moderate and severe lung reperfusion edema after large volumes of surgical intervention.
Classify and Explore the Diversity of Planetary Population and Interior Properties
Authors: Jiang Xiaoming , Jiang Jonathan H. , Burn Remo , Zhu Zong-Hong
Published: October 2023

Classification is an essential method and has been developed widely in astronomy. However, planets still lack a universal classification framework, because the solar system planet sample is too small for statistical analysis. Fortunately, exoplanets supply large samples to help build up synthetic planetary populations then support a classification framework. In this study, we use synthetic populations to explore the diversity and evolution relations of planets. We detect six outstanding clusters in mass–radius space with the kernel density estimation and extract typical planets for each type. The first four types are gas-poor planets, and the last two are gas-rich. For an intermediate type, the light gas envelopes contribute to the observable radius but not the mass. Once the planet is massive enough (3.9 M

J
), its size shrinks with increasing mass due to self-gravity. Based on the evolution tracks and the gas envelopes’ properties, the environment is linked strongly to the gas properties, and it controls which type can form at a specific location. The system with gas giants will be different from those without, including total planet mass and the number of planets in the system. Giant planets shape the whole system by orbital resonance. Each type of planets’ period ratios are different, and gas giants have the most outstanding accumulation peak at 2:1 resonance. In the future, the patterns of observed planets’ retrieved interior structures can help to confirm the suggested classification. However, the structure degeneracy induces high uncertainty, such that the framework will still profit from additional theoretical constraints.
NGC 6302: The Tempestuous Life of a Butterfly
Authors: Balick Bruce , Borchert Lars , Kastner Joel H. , Frank Adam , Blackman Eric , Nordhaus Jason , Moraga Baez Paula
Published: October 2023

NGC 6302 (The Butterfly Nebula) is an extremely energetic and rapidly expanding bipolar planetary nebula (PN). If the central source is a single star, then its apparent location in an H-R diagram places it among the most massive, hottest, and presumably rapidly evolving of all central stars of PNe. Our proper motion study of NGC 6302, based on Hubble Space Telescope WFC3 images spanning 11 yr, has uncovered at least four different pairs of uniformly expanding internal lobes ejected at various times and orientations over the past two millennia at speeds ranging from 10–600 km s−1. In addition, we find a pair of collimated off-axis flows in constant motion at ∼770 ± 100 km s−1 within which bright [Fe ii] feathers are conspicuous. Combining our results with those previously published, we find that the ensemble of flows has an ionized mass >0.1 M
⊙ and its kinetic energy, between 1046 and 1048 erg, lies at the upper end of gravity-powered PNe ejection processes such as stellar mergers or mass accretion. We assemble our results into a plausible historical timeline of ejections from the nucleus and suggest that the ejections are powered by gravitational infall.
Peculiar Spectral Property of Coherent Radio Emission from a Hot Magnetic Star: The Case of an Extreme Oblique Rotator
Authors: Das Barnali , Chandra Poonam
Published: October 2023

We report ultra-wideband (0.4–4.0 GHz) observation of coherent radio emission via electron cyclotron maser emission (ECME) produced by the hot magnetic star HD 142990. With nearly perpendicular rotation and magnetic dipole axes, it represents an extreme case of oblique rotators. The large obliquity is predicted to cause a complex distribution of stellar wind plasma in the magnetosphere. It has been proposed that such a distribution will give rise to a nontrivial frequency dependence of ECME. Indeed we discovered strong frequency dependence of different pulse properties, such as the appearance of secondary pulses, different cutoff frequencies for pulses observed at different rotational phases, etc. But the unique feature that we observed is that while at sub-gigahertz frequencies, the star appears to produce ECME in the extraordinary mode, at gigahertz frequencies, the mode indicated by the pulse property is the ordinary mode. By considering the physical condition needed by such a scenario, we conclude that the required transition of the magnetoionic mode with frequency is unlikely to occur, and the most promising scenario is refraction caused by the complex plasma distribution surrounding the star. This suggests that the conventional way to deduce the magnetoionic mode based on ECME observed at a given frequency is not a reliable method for stars with large misalignment between their rotation and magnetic axes. We also find that ECME exhibits an upper cutoff at ≲3.3 GHz, which is much smaller than the frequency corresponding to the maximum stellar magnetic field strength.
JADES Initial Data Release for the Hubble Ultra Deep Field: Revealing the Faint Infrared Sky with Deep JWST NIRCam Imaging
Authors: Rieke Marcia J. , Robertson Brant , Tacchella Sandro , Hainline Kevin , Johnson Benjamin D. , Hausen Ryan , Ji Zhiyuan , Willmer Christopher N. A. , Eisenstein Daniel J. , Puskás Dávid , Alberts Stacey , Arribas Santiago , Baker William M. , Baum Stefi , Bhatawdekar Rachana , Bonaventura Nina , Boyett Kristan , Bunker Andrew J. , Cameron Alex J. , Carniani Stefano , Charlot Stephane , Chevallard Jacopo , Chen Zuyi , Curti Mirko , Curtis-Lake Emma , Danhaive A. Lola , DeCoursey Christa , Dressler Alan , Egami Eiichi , Endsley Ryan , Helton Jakob M. , Hviding Raphael E. , Kumari Nimisha , Looser Tobias J. , Lyu Jianwei , Maiolino Roberto , Maseda Michael V. , Nelson Erica J. , Rieke George , Rix Hans-Walter , Sandles Lester , Saxena Aayush , Sharpe Katherine , Shivaei Irene , Skarbinski Maya , Smit Renske , Stark Daniel P. , Stone Meredith , Suess Katherine A. , Sun Fengwu , Topping Michael , Übler Hannah , Villanueva Natalia C. , Wallace Imaan E. B. , Williams Christina C. , Willott Chris , Whitler Lily , Witstok Joris , Woodrum Charity
Published: October 2023

JWST has revolutionized the field of extragalactic astronomy with its sensitive and high-resolution infrared view of the distant Universe. Adding to the new legacy of JWST observations, we present the first NIRCam imaging data release from the JWST Advanced Deep Extragalactic Survey (JADES), providing nine filters of infrared imaging of ∼25 arcmin2 covering the Hubble Ultra Deep Field and portions of Great Observatories Origins Deep Survey South. Utilizing 87 on-sky dual-filter hours of exposure time, these images reveal the deepest ever near-infrared view of this iconic field. We supply carefully constructed nine-band mosaics of the JADES bands, as well as matching reductions of five additional bands from the JWST Extragalactic Medium-band Survey. Combining with existing Hubble Space Telescope imaging, we provide 23-band space-based photometric catalogs and photometric redshifts for ≈47,500 sources. To promote broad engagement with JADES, we have created an interactive FitsMap website to provide an interface for professional researchers and the public to experience these JWST data sets. Combined with the first JADES NIRSpec data release, these public JADES imaging and spectroscopic data sets provide a new foundation for discoveries of the infrared Universe by the worldwide scientific community.
Constraints to Efficiently Find Interstellar Object Generated Craters on the Moon
Authors: Chang Daniel , Hsieh 謝 Cheng-Han 承翰 , Laughlin Gregory
Published: October 2023

Recent observations of interstellar objects (ISO) crossing the solar system suggest the possible existence of ISO-generated craters on the Moon. We explore how different crater properties such as age, size, melt, and position can be used to search for ISO-generated craters on the lunar surface. We find that selecting young, small craters with a high volume of melt located away from the lunar poles increases the likelihood of association with a high-speed ISO by 100 fold as compared to selecting randomly, assuming high-speed ISO impacts generate melt. We note that craters from other sources however still massively outnumber ISO-generated craters.
A comprehensive database of squirrel distribution and occurrence in South Asia
Authors: Swati Udayraj , D'Souza Senan , Aravind Palassery , Muni Rakesh , Rajamani Nandini
Published: October 2023

The Squirrels of South Asia (SOSA) database compiles comprehensive distribution and occurrence information on all squirrel species that occur in this region (34 species). These 34 squirrel species, including tree, flying and ground squirrels, represent 14% of global sciurid diversity. The database collates curated data from various sources such as museums, literature, primary fieldwork, citizen science and social media platforms and covers the entire distributional ranges of the target species, including countries in Central Asia and Southeast Asia when required. The SOSA database enhances our understanding of squirrel distribution, population dynamics and their conservation needs in South Asia by consolidating information. It aims to be a valuable resource for researchers, conservationists and wildlife enthusiasts.

As of March 2023, the database comprises over 40,000 records of 34 species in over 30 countries globally. Spending an average of 334 hours on each species, more than 20 data collectors put in over 10,000 hours to gather, curate and build this database. The database has resulted in novel records of species occurrence in regions and countries that are poorly represented in currently available global data repositories. The current version which has been made public via GBIF comprises of 1187 records of all 34 species across multiple sources. This is a subset of the SOSA database.
Prevention of cardiovascular diseases
Authors: Vakrilova Becheva Maria Stamova , Kirkova-Bogdanova Angelina Georgieva , Ivanova Stefka Аchkova , Atanasov Petar Jordanov , Chaneva Mariya Sevdelinova , Petkova Valentina Boyanova
Published: October 2023

Cardiovascular diseases (CVD) are socially significant diseases due to high morbidity and loss of people of working age. In Bulgaria, they are the leading cause of mortality among the population and are a consequence of the effect of cardiovascular risk factors. The draft of the National Health Strategy (NHS) 2021–2030 reports on their wide distribution, as well as on the insufficient knowledge, skills and motivation for their prevention and control.

The purpose of this review is to address the prevention of cardiovascular disease, which is a significant problem worldwide. Prevention goals for patients with established cardiovascular disease and those at high risk include smoking cessation, healthy eating, physical activity, and lowering body mass index. There are various methods that are part of health promotion to reduce CVD risks. These methods include motivational interviewing, non-pharmacological means, the use of certain medications for CVD prevention, as well as physical activity. Strategies for effective primary prevention refer to engaging the patient to change their lifestyle and identifying risk factors, while secondary prevention is aimed at activities to detect the disease early and to slow down its progression. It is necessary to create a strategy for timely preventive actions with a view to preventing the negative influence of risk factors and improving people‘s heart health.
An automatic density peaks clustering based on a density-distance clustering index
Authors: Xu Xiao , Liao Hong , Yang Xu
Published: October 2023

The density peaks clustering (DPC) algorithm plays an important role in data mining by quickly identifying cluster centers using decision graphs to identify arbitrary clusters. However, the decision graph introduces uncertainty in determining the cluster centers, which can result in an incorrect number of clusters. In addition, the cut-off distance parameter relies on prior knowledge, which poses a limitation. To address these issues, we propose an improved automatic density peaks clustering (ADPC) algorithm. First, a novel clustering validity index called density-distance clustering (DDC) is introduced. The DDC index draws inspiration from the density and distance characteristics of cluster centers, which is applicable to DPC and aligns with the general definition of clustering. Based on the DDC index, the ADPC algorithm automatically selects the suitable cut-off distance and acquires the optimal number of clusters without additional parameters. Numerical experimental results validate that the introduced ADPC algorithm successfully automatically determines the optimal number of clusters and cut-off distance, significantly outperforming DPC, AP and DBSCAN algorithms.
Exponential synchronization analysis for complex dynamical networks with hybrid delays and uncertainties under given control parameters
Authors: Shanmugam Saravanan , Rhaima Mohamed , Ghoudi Hamza
Published: October 2023

This paper addresses the problem of exponential synchronization in continuous-time complex dynamical networks with both time-delayed and non-delayed interactions. We employ a proportional integral derivative (PID) control strategy and a dynamic event-triggered approach to investigate this synchronization problem. Our approach begins with constructing a general model for complex dynamical networks that incorporate delays. We then derive synchronization criteria based on the PID control parameters, utilizing linear matrix inequality techniques in conjunction with a dynamic event-trigger mechanism. The application of Lyapunov stability theory and inequality techniques allows us to establish these criteria, considering the presence of hybrid delays. To illustrate the effectiveness of our proposed model, we provide two numerical examples showcasing synchronization dynamics. These examples demonstrate the successful theoretical results of a novel PID controller and dynamic event-trigger mechanism.
The $ l_\infty $-induced norm of multivariable discrete-time linear systems: Upper and lower bounds with convergence rate analysis
Authors: Kang Oe Ryung , Kim Jung Hoon
Published: October 2023

This paper develops a method for computing the $ l_{\infty} $-induced norm of a multivariable discrete-time linear system, for which an infinite-dimensional matrix should be intrinsically concerned with. To make such a computation feasible, we treat the infinite-dimensional matrix in a truncated fashion, and an upper bound and a lower bound on the $ l_\infty $-induced norm of the original multivariable discrete-time linear system are derived. More precisely, the matrix $ \infty $-norm of the (infinite-dimensional) tail part can be approximately computed by deriving its upper and lower bounds, while that of the (finite-dimensional) truncated part can be exactly obtained. With these values, an upper bound and a lower bound on the original $ l_\infty $-induced norm can be computed. Furthermore, these bounds are shown to converge to each other within an exponential order of $ N $, where $ N $ is the corresponding truncation parameter. Finally, some numerical examples are provided to demonstrate the theoretical validity and practical effectiveness of the developed computation method.
Assurance of Network Communication Information Security Based on Cyber-Physical Fusion and Deep Learning
Authors: Cheng Shi , Qu Yan , Wang Chuyue , Wan Jie
Published: October 2023

The internet brings high efficiency and convenience to society; however, the issue of information security in network communication has significantly affected every aspect of the society. How to ensure the security of this network communication information has become an important research topic. This paper proposes a diagnosis and prediction method based on cyber-physical fusion and deep learning, such as LSTM and CNN, to diagnose and predict network security in a complex network environment. The experiment results showed that the accuracy of network security diagnosis of the LSTM method in the training set was approximately 80%/ After the CNN training process, it has the highest accuracy rate of 95% on the test data set. This paper analysed the nature of network security problems from the perspective of cyber-physical fusion. CNN-based method to diagnose network security can obtain results with a higher accuracy rate so that technicians can better take measures to protect network security.
Practice of PE Teaching Reform in Colleges and Universities Under the Background of Multimedia Internet
Authors: Chen Jiaheng , Chen Shicheng
Published: October 2023

Multimedia network technology refers to multimedia network teaching based on text data communication, which can make better use of sports resources in college physical education teaching. Multimedia technology combines computer and video technology. It refers to the combination of two or more sounds and images to form a system that can transmit information. When the initial key changes slightly, the hash bit change rate of the scheme is greater than the threshold value of 0.451, which shows that the hash algorithm in this paper has good key sensitivity. The more sensitive the perceived hash is to the change of the key, the more difficult it is for the attacker to estimate the key, and the better the security of the hash key. Therefore, the above experiments can prove that the hash algorithm in this paper is safe. The appearance of sports network distance education in this paper provides a broader stage for schools and makes greater contributions to the improvement of the overall physical quality of citizens in the whole society.
Modelling the Utilization of Digital Technology in Education During the COVID-19 Pandemic Through an Expert-Based Analytic Tool
Authors: Himang Celbert M. , Cernias III Rosendo , Corbes Ronnel Uraga , Alicer Mary Joy Modina , Colobong Benjie , Olarte Joy M. , Ocampo Lanndon , Bongo Miriam Fabroa , Ancheta Jr. Rosein
Published: October 2023

The coronavirus disease (COVID-19) pandemic has threatened the capability of academic institutions to continuously deliver quality education despite the worldwide lockdown implemented to curb the transmission of the dreaded disease. As a result, institutions are forced to take advantage of supplementary digital technology to support online learning. Recognizing that an expert-based approach is deemed necessary to carefully execute the decision-making process of utilizing digital technology, this paper provides a new perspective of assessing the constructs of digital technology utilization with the use of fuzzy decision-making trial and evaluation laboratory (DEMATEL). Among the constructs considered, burnout (BO), technostress (TS), goal incongruence (GI), and reflexivity (RE) are found to be effects of other causal constructs. These findings offer crucial insights into the evolving literature of COVID-19 on education, particularly on informing the design of initiatives and measures to support the use of digital technologies as may be necessary.
Adaptive Acquisition and Visualization of Point Cloud Using Airborne LIDAR and Game Engine
Authors: Huang Chengxuan , Brock Evan , Wu Dalei , Liang Yu
Published: October 2023

The development of digital twin for smart city applications requires real-time monitoring and mapping of urban environments. This work develops a framework of real-time urban mapping using an airborne light detection and ranging (LIDAR) agent and game engine. In order to improve the accuracy and efficiency of data acquisition and utilization, the framework is focused on the following aspects: (1) an optimal navigation strategy using Deep Q-Network (DQN) reinforcement learning, (2) multi-streamed game engines employed in visualizing data of urban environment and training the deep-learning-enabled data acquisition platform, (3) dynamic mesh used to formulate and analyze the captured point-cloud, and (4) a quantitative error analysis for points generated with our experimental aerial mapping platform, and an accuracy analysis of post-processing. Experimental results show that the proposed DQN-enabled navigation strategy, rendering algorithm, and post-processing could enable a game engine to efficiently generate a highly accurate digital twin of an urban environment.
Big Data Swarm Intelligence Optimization Algorithm Application in the Intelligent Management of an E-Commerce Logistics Warehouse
Authors: Chen Zhi , Liu Jie , Wang Ying
Published: October 2023

A dynamic mutation probability formula is utilized to optimize the model. In order to solve the logistics warehouse path problem, the ant colony optimization algorithm, optimized by a genetic algorithm, is employed to construct a logistics warehouse path optimization model. This model effectively optimizes the logistics warehouse paths. Test results comparing the convergence and distribution of non-inferior solutions demonstrated that the proposed model outperforms others in terms of convergence and non-inferior solution distribution. In practical logistics warehouse optimization, applying the proposed model to optimize cargo locations can significantly enhance the effectiveness of the objective function. The optimization resulted in improvements for all four objective functions related to cargo location, with reduction rates of 10.38%, 30.88%, 51.78%, and 88.49%, respectively. For the optimization of logistics warehouse paths, the original distance was 47.6m, which was reduced to 27.8m after optimization. Consequently, the picking distance decreased by 41.60%.
Possibilities of Determining K-Value and Activity Index for Ground Granulated Blast Furnace Slag
Authors: Sperling Petr , Hela Rudolf
Published: October 2023

This paper deals with the determination of k-value and activity index for ground granulated blast furnace slag (GGBFS). The aim of this paper is to determine the activity index and k value for different CEM I cement substitutes with ground granulated blast furnace slag. determination of the k-value is based on the relationship of the water/cement ratio and the compressive strength of concrete with GGBFS. The next goal is to create a mathematical function that describes the development of compressive strength depending on the age of the cement mortar or concrete and the amount of cement replacement with GGBFS. Based on the achieved compressive strengths were designed compressive strength function for concrete and cement mortar with high coefficient of determination (above 0.9). Furthermore, k-values were determined for different ages of concrete and replacement of cement with finely ground slag. These k-values increase as the age of the concrete increases.
Use of Alternative Raw Materials for the Production of Fiber Cement Products
Authors: Hoško Marek , Bodnárová Lenka , Pikna Ondřej
Published: October 2023

The paper deals with the production of fiber cement and the use of alternative raw materials in its production. The paper describes the basic technologies used for the production of fiber cement with a description of their advantages and disadvantages for the given type of product. The paper also describes the most commonly used types of fillers and their impact on the final fiber cement products. The paper also describes selected alternative raw materials used for the production of fiber cement and their impact on the final products. The paper describes the possible use of waste dust from facade fiber cement boards in the production of corrugated sheets. Trial recipes were designed with partial replacement of original raw materials with waste dust. The fiber-cement corrugated sheets were produced with using Hatchesk technology. Mainly was investigated the influence of the addition of waste dust on the strength characteristics and the volume weight of the final products. The produced sheets were tested according to EN 494+A1: 2016 Fibre-cement profiled sheets and fittings - Product specification and test methods. The tested samples with waste dust reached comparable results like sheets produced according to standard recipe. No negative effect was proven of the addition of waste dust on the strength characteristics of final products.
Anti-Biofilm Potential of Lactobacillus casei and Lactobacillus rhamnosus Cell-Free Supernatant Extracts Against Staphylococcus aureus
Authors: Saidi Navid , Saderi Horieh , Owlia Parviz , Soleimani Mohammad
Published: October 2023

Background:

Biofilm production is an important virulence factor in Staphylococcus aureus. Most of the infections associated with biofilms of this bacterium are very difficult to treat using antibiotics. The present research studied the effects of the two probiotic Lactobacillus species L. casei and L. rhamnosus on S. aureus biofilm.

Materials and Methods:

Cell-free supernatant (CFS) extracts of L. casei ATCC 39392 and L. rhamnosus ATCC 7469 culture were prepared. The effects of sub-minimum inhibitory concentrations of the CFS extracts on cell surface hydrophobicity (CSH), initial attachment, biofilm formation, and their ability in eradicating S. aureus ATCC 33591 biofilms were assessed. In addition, the effects of CFS extracts on expression of the genes involved in formation of S. aureus biofilms (cidA, hld, sarA, icaA, and icaR) were also evaluated through real-time polymerase chain reaction.

Results:

CFSs of both Lactobacillus spp. significantly reduced CSH, initial attachment, and biofilm formation and eradicated the biofilms. The above findings were supported by scanning electron microscopy results. These two Lactobacillus CFSs significantly changed the expression of all studied biofilm-related genes. Expression levels of cidA, hld, and icaR genes significantly increased by 4.4, 2.3, and 4.76 fold, respectively, but sarA and icaA genes were significantly downregulated by 3.12 and 2.3 fold.

Conclusion:

The results indicated that CFS extracts of L. casei and L. rhamnosus had desirable antagonistic and anti-biofilm effects against S. aureus. Consequently, carrying out further research enables us to prepare pharmaceuticals from these CFSs in order to prevent and treat infections caused by S. aureus biofilms.
Comparison of the Effectiveness of Two Types of Commercial Endotracheal Tube Holders, with the Conventional Method in a Manikin Model
Authors: Nasr Isfahani Mehdi , Abootalebi Alireza , Ghaznavi Khatere , Kamali Dolatabadi Leila
Published: October 2023

Background:

Endotracheal intubation is employed to create a safe airway in patients requiring mechanical ventilation. The relatively high prevalence rate of unplanned displacement of the endotracheal tube (ETT) can be associated with serious complications. This study was conducted to evaluate the effectiveness of a newly designed tube holder in Iran (Irafit), the Thomas ETT holder and the traditional method using adhesive tape.

Materials and Methods:

The present manikin-based study was performed on the human mannequin. For this purpose, the mannequin was first subjected to oral intubation by a skilled emergency medicine specialist. Then, three methods of adhesive tape, Irafit-ETT holder, and Thomas-ETT holder were used. The mean of displacement in width of the mouth, length of the ETT, and depth as well as ETT removal was recorded.

Results:

The results of the present study revealed that the displacement in depth was significantly less in the Irafit-ETT holder as compared with the other two groups following the application of a tug (P < 0.001). The displacement in the length of the ETT with and without the application of a tug was significantly less in the Irafit-ETT holder and Thomas-ETT holder groups as compared with the adhesive tape group (P < 0.001).

Conclusion:

According to the results of the present study, it can be stated that both ETT holder devices (Thomas vs. Irafit) were not distinct in terms of displacements in length and width; however, the Iranian model was more successful in minimizing the displacement in depth.
Vascular and Neural Invasion in Oral Squamous Cell Carcinoma: A Study in an Iranian population
Authors: Torabinia Nakisa , Jahanshahi Gholamreza , Eslami Vahid , Keshani Forooz
Published: October 2023

Background:

Among various parameters used to predict the outcome of malignancy, nerve invasion has been widely considered as a sign of aggressive behavior in oral cancers. According to the importance of neural invasion in predicting the outcome of oral squamous cell carcinoma (OSCC), this study aimed to evaluate the prevalence of neural and vascular invasion in OSCC.

Materials and Methods:

In this descriptive, analytical, and cross-sectional study, paraffin-embedded tissues of 62 OSCC in the health center of surgery and pathology were evaluated (2013–2015). Patients' archives were evaluated and recorded in terms of their age and gender. Hematoxylin and eosin (H&E) slides were then examined by two oral pathologists and scrutinized for the presence of nerve involvement, tumor differentiation, vascular and lymph node invasion, and depth of invasion. Data were analyzed using SPSS version 23, t-test, and one-way ANOVA (P < 0.05).

Results:

Of 62 tumors, 12 patients showed only nerve invasion, 17 cases had only vascular invasion, and seven patients had both neural and vascular invasion, simultaneously, known as a neurovascular invasion. Furthermore, there was no vascular and neural invasion in 26 cases. There was a statistically significant correlation between vascular and neural invasion and the tumor site (P = 0.045). The highest frequency of neural invasion, as well as vascular invasion, was related to tongue tumors.

Conclusion:

The relation between neural and vascular invasion in OSCC with tumor's location was statistically significant. Lip and tongue carcinoma had shown more neurovascular invasion without relation to gender, age, and cell differentiation.
A Combined Nomogram Model to Preoperatively Predict Positive Sentinel Lymph Biopsy for Breast Cancer In Iranian Population
Authors: Nafissi Nahid , Zareie Bushra , Rezagholi Payman , Moayeri Hassan
Published: October 2023

Background:

Axillary dissection in breast cancer provides useful information on the degree of axillary nodule involvement, which serves as a reliable indicator for the prognosis and staging of breast cancer in patients. The aim of this study was to develop and validate the nomogram model by combining prognostic factors and clinical features to predict the node status of preoperative breast guard positive node cancer.

Materials and Methods:

Subjects consisted of patients referring to hospitals with the diagnosis of breast cancer. Patients were allowed to substitute molecular subtypes with data on breast cancer diagnosis and prognosis as well as sentinel node status. The bootstrap review was used for internal validation. The predicted performance was evaluated based on the area under the receiver operating characteristic curve. According to the logistic regression analysis, the nomograms reported material strength between predictors and final status reliability.

Results:

1172 patients participated in the study, of whom only 539 patients had axillary lymph node involvement. The subtype, family history, calcification, and necrosis were not significantly related to axillary lymph node involvement. Tumor size, histological type, and lymphovascular invasion in multivariate logistic regression were significantly and directly correlated with axillary lymph node involvement.

Conclusion:

Nomograms, depending on the population, help make decisions to prevent axillary surgery. It seems that the prediction model presented in this study, based on the results of the neuromography, can help surgeons make a more informed decision on underarm surgery. Moreover, in some cases, their surgical program will be informed by accurate medical care and preclusion of major surgeries such as ALND.