bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of Direct Taxation on Economic Growth: Empirical Evidence Based on Panel Data Regression Analysis at the Level of Eu Countries
Authors: Balasoiu Narciz , Chifu Iulian , Oancea Marian
Published: April 2023

Through fiscal policy, the government can influence businesses and individuals in order to regulate their behaviour. The research used panel data from all 27 EU countries covering the period 2008–2020 to investigate the impact of direct taxation on economic growth at the level of two main clusters of countries concerning fiscal efficiency. Therefore, the analysis employed cluster methods to classify the main EU countries in both groups of countries with a high level of fiscal efficiency and those with a rather limited level of fiscal efficiency. The study employs fixed effect models and dynamic GMM methods to investigate the effect of direct taxation components (personal and corporate income taxes) on economic growth. The analysis also considers the informal economy’s role in relation to the official economy. The empirical results revealed that corporate income taxes significantly negatively impact economic growth for both clusters of high- and limited fiscal efficiency countries. Additionally, personal income tax was associated with lower economic growth for countries in the limited fiscal efficiency group. Thus, from the perspective of policymakers, lowering direct taxation can increase disposable income, stimulate consumption and economic growth, encourage investment leading to job creation, increase competitiveness, and reduce tax evasion and avoidance, thereby leading to a more efficient tax system.
Improving the Model for Estimating the Number of Construction Workers for Apartment Construction
Authors: Mun Hyeongjun , Jeong Jaewook , Jeong Jaemin
Published: April 2023

Because the construction industry is labor-intensive, predicting the number of workers is important for estimating various factors that influence construction, such as the construction worker fatality rate and construction financing plan. In South Korea, the number of full-time workers is estimated based on the total construction cost; however, this estimation method does not reflect the characteristics of specific construction types. This study presents a simple model that uses real data to predict the number of construction workers and calculates correction factors in two ways to improve reliability. This study involved three steps: (1) collecting data, (2) calculating and validating the estimated labor rate, and (3) calculating correction factors. The model predicted the number of workers with an average error rate of 7.60% without correction factors. To improve reliability, this research suggests two-way correction factors, and the results show that correction factor one reduces the average error rate to 0.06% and correction factor two reduces the average error rate to 0.00%. The proposed model can be used for estimating project costs and predicting construction worker fatalities for a project.
Creation of Virtual Reality for Education Purposes
Authors: Kuna Peter , Hašková Alena , Borza Ľuboš
Published: April 2023

Virtual reality systems have been developed primarily for the entertainment sector. However, they are being increasingly considered as high potential tools for use in industry and education. In this context, schools are now facing a challenge to introduce virtual-reality-supported teaching into their processes. With this in mind, the authors, in their paper, focus on the possibility for using virtual excursions as part of vocational education and training. For this purpose, they analyze the suitability and usability of selected virtual reality systems, as well as relevant camera systems, for the creation of virtual reality software products designed for industrial practice in upper secondary vocational schools’ apprenticeships (vocational education and training). The main results of their analyses are summarized in the form of tabularized SWOT parameters.
Research on the Symmetry of the Hamiltonian System under Generalized Operators
Authors: Wang Cai , Song Chuan-Jing
Published: April 2023

Generalized operators have recently been proposed with great potential applications. Here, we present research carried out on Noether figury and perturbation to Noether symmetry for Hamiltonian systems within generalized operators. There are four parts, and each part contains two kinds of generalized operator. Firstly, Hamilton equations are established. Secondly, the Noether symmetry method is used for finding the solutions to the differential equations of motion, and conserved quantities are obtained. Thirdly, perturbation to Noether symmetry and adiabatic invariants are further explored. In the end, two examples are given to illustrate the methods and results.
Ricci Soliton of CR-Warped Product Manifolds and Their Classifications
Authors: Li Yanlin , Srivastava Sachin Kumar , Mofarreh Fatemah , Kumar Anuj , Ali Akram
Published: April 2023

In this article, we derived an equality for CR-warped product in a complex space form which forms the relationship between the gradient and Laplacian of the warping function and second fundamental form. We derived the necessary conditions of a CR-warped product submanifolds in Ka¨hler manifold to be an Einstein manifold in the impact of gradient Ricci soliton. Some classification of CR-warped product submanifolds in the Ka¨hler manifold by using the Euler–Lagrange equation, Dirichlet energy and Hamiltonian is given. We also derive some characterizations of Einstein warped product manifolds under the impact of Ricci Curvature and Divergence of Hessian tensor.
Towards Safe Visual Navigation of a Wheelchair Using Landmark Detection
Authors: Sevastopoulos Christos , Zadeh Mohammad Zaki , Theofanidis Michail , Acharya Sneh , Patel Nishi , Makedon Fillia
Published: April 2023

This article presents a method for extracting high-level semantic information through successful landmark detection using 2D RGB images. In particular, the focus is placed on the presence of particular labels (open path, humans, staircase, doorways, obstacles) in the encountered scene, which can be a fundamental source of information enhancing scene understanding and paving the path towards the safe navigation of the mobile unit. Experiments are conducted using a manual wheelchair to gather image instances from four indoor academic environments consisting of multiple labels. Afterwards, the fine-tuning of a pretrained vision transformer (ViT) is conducted, and the performance is evaluated through an ablation study versus well-established state-of-the-art deep architectures for image classification such as ResNet. Results show that the fine-tuned ViT outperforms all other deep convolutional architectures while achieving satisfactory levels of generalization.
Digital Interaction with Physical Museum Artifacts
Authors: Pattakos Andreas , Zidianakis Emmanouil , Sifakis Michalis , Roulios Michalis , Partarakis Nikolaos , Stephanidis Constantine
Published: April 2023

In the digital information world, visualizing information in public spaces has been implemented in various formats and for application contexts such as advertisement, useful information provision, and provision of critical information in the cases of accidents, natural disasters, etc. Among the different types of information displays, in this research work, the focus is given to the ones that extend the experience of people visiting cultural heritage institutions. To this end, the design and implementation of an interactive display case that aims to overcome the “non-touch policy” of museums are presented. This novel display allows visitors to get engaged with artifacts and information through touch-based interaction with the ambition to extend the target audience and impact of museum content. The conducted study demonstrates that the interactive display case is an effective solution for providing relevant information to visitors, enhancing their engagement with exhibits, and improving their overall experience. The proposed solution is user-friendly, engaging, and informative, making it ideal for museums and other public exhibit spaces.
Systematic Evaluation of the Application of Zebrafish in Toxicology (SEAZIT): Developing a Data Analysis Pipeline for the Assessment of Developmental Toxicity with an Interlaboratory Study
Authors: Hsieh Jui-Hua , Nolte Sue , Hamm Jon T. , Wang Zicong , Roberts Georgia K. , Schmitt Charles P. , Ryan Kristen R.
Published: April 2023

The embryonic zebrafish is a useful vertebrate model for assessing the effects of substances on growth and development. However, cross-laboratory developmental toxicity outcomes can vary and reported developmental defects in zebrafish may not be directly comparable between laboratories. To address these limitations for gaining broader adoption of the zebrafish model for toxicological screening, we established the Systematic Evaluation of the Application of Zebrafish in Toxicology (SEAZIT) program to investigate how experimental protocol differences can influence chemical-mediated effects on developmental toxicity (i.e., mortality and the incidence of altered phenotypes). As part of SEAZIT, three laboratories were provided a common and blinded dataset (42 substances) to evaluate substance-mediated effects on developmental toxicity in the embryonic zebrafish model. To facilitate cross-laboratory comparisons, all the raw experimental data were collected, stored in a relational database, and analyzed with a uniform data analysis pipeline. Due to variances in laboratory-specific terminology for altered phenotypes, we utilized ontology terms available from the Ontology Lookup Service (OLS) for Zebrafish Phenotype to enable additional cross-laboratory comparisons. In this manuscript, we utilized data from the first phase of screening (dose range finding, DRF) to highlight the methodology associated with the development of the database and data analysis pipeline, as well as zebrafish phenotype ontology mapping.
Humoral Response after a Fourth Dose with mRNA-1273 in Healthcare Workers with and without a History of SARS-CoV-2 Infection and Previously Vaccinated with Two Doses of BBIBP-CorV Plus BNT162b2 Vaccine
Authors: Gómez de la Torre Juan C. , Hueda-Zavaleta Miguel , Cáceres-DelAguila José Alonso , Muro-Rojo Cecilia , Cruz-Escurra Nathalia De La , Benítes-Zapata Vicente A.
Published: April 2023

There is limited information on the kinetics of the humoral response elicited by a fourth dose with a heterologous mRNA1273 booster in patients who previously received a third dose with BNT162b2 and two doses of BBIBP-CorV as the primary regimen. We conducted a prospective cohort study to assess the humoral response using Elecsys® anti-SARS-CoV-2 S (anti-S-RBD) of 452 healthcare workers (HCWs) in a private laboratory in Lima, Peru at 21, 120, 210, and 300 days after a third dose with a BNT162b2 heterologous booster in HCW previously immunized with two doses of BBIBP-CorV, depending on whether or not they received a fourth dose with the mRNA1273 heterologous vaccine and on the history of previous SARS infection -CoV-2. Of the 452 HCWs, 204 (45.13%) were previously infected (PI) with SARS-CoV-2, and 215 (47.57%) received a fourth dose with a heterologous mRNA-1273 booster. A total of 100% of HCWs presented positive anti-S-RBD 300 days after the third dose. In HCWs receiving a fourth dose, GMTs 2.3 and 1.6 times higher than controls were observed 30 and 120 days after the fourth dose. No statistically significant differences in anti-S-RBD titers were observed in those HCWs PI and NPI during the follow-up period. We observed that HCWs who received a fourth dose with the mRNA1273 and those previously infected after the third dose with BNT162b2 (during the Omicron wave) presented higher anti-S-RBD titers (5734 and 3428 U/mL, respectively). Further studies are required to determine whether patients infected after the third dose need a fourth dose.
A Qualitative Investigation on COVID-19 Vaccine Hesitancy in Neurodivergent Communities
Authors: Khorasani Laila N. , Bastani Asal , Shen Tammy , Kaur Gurlovellen , Shah Nilpa D. , Juarez Lucia , Heyman Michelle , Grassian Julie , Cho An-Chuen , Hotez Emily
Published: April 2023

Vaccine hesitancy is a major barrier to vaccination, hindering the success of vaccine efforts and thereby increasing public health risk to viral diseases, including COVID-19. Neurodivergent (ND) individuals, including individuals with an intellectual and/or developmental disability, have demonstrated a heightened risk of hospitalization and death due to COVID-19, highlighting the need for further research specifically on ND communities. We conducted a qualitative analysis using in-depth interviews with medical professionals, non-medical health professionals and communicators, and ND individuals or their caregivers. Using a thematic coding analysis methodology, trained coders identified major themes according to 24 distinct codes spanning across the categories of (1) barriers to vaccination; (2) facilitators to vaccination; and (3) suggestions for improving vaccine confidence. Qualitative findings identify misinformation, perception of vaccine risk, sensory sensitivities, and structural hardship as the most significant barriers to COVID-19 vaccination. We highlight the importance of accommodations to vaccination for the ND community alongside coordinated efforts by healthcare leaders to direct their communities to accurate sources of medical information. This work will inform the direction of future research on vaccine hesitancy, and the development of programs specific to the ND community’s access to vaccines.
Tracking the Spatio-Temporal Distribution of Organic Particles to Predict Macroaggregation in the Northern Adriatic Sea
Authors: Kraus Romina , Ivošević DeNardis Nadica
Published: April 2023

In the last two decades, the phenomenon of macroaggregation has become more frequent in the Mediterranean Sea and beyond, but it has disappeared in the northern Adriatic. The aim of this study was to present, for the first time, the concentration of surface-active particles (SAP) at selected sampling stations in the northern Adriatic Sea, as well as phytoplankton and chlorophyll data and physical properties of seawater, in order to investigate the role of SAP in macroaggregation. We used an electrochemical method (polarography and amperometry) to directly and throughput characterize fragile organic material in terms of its dissolved and particulate state in seawater samples. The results show that the concentration of SAP is subject to seasonal variations and was generally higher in the western region. In addition, an increase in surfactant activity and concentration of SAP was detected in the subsurface layer and in the stratified column prior to the mucilage event, which may be related to the very high abundance of Skeletonema marinoi, a diatom characteristic of the winter bloom in the region. We noted an order of magnitude higher concentration of SAP than typically observed in late winter/early spring, which serves as a precursor to the macroaggregation that occurs under certain environmental and oceanographic conditions in marine systems.
Mapping Irrigated Areas in China Using a Synergy Approach
Authors: van Dijk Michiel , Geurtsen Susan
Published: April 2023

In China, irrigation plays a fundamental role in food production, which is hampered by water security, rising population and climate change. To ensure food security and formulate agricultural and irrigation policies, decision-makers need detailed grid-level information on the location of irrigated areas. Unfortunately, this information is not easily available as national irrigation maps are frequently outdated and often have a coarse spatial resolution. In this paper, we present new irrigation maps for China at a spatial resolution of 30 arc seconds (~1 × 1 km) that cover the period between 2005 and 2015. The maps were created using a synergy approach, which combines and integrates regional and global irrigation maps, cropland maps and subnational statistics. The maps were calibrated to subnational irrigation statistics and validated using an external dataset with geocoded information on the location of irrigated areas. The maps show, at the detailed spatial level, how much irrigation expanded over the period of 2005–2015. The proposed synergy approach is flexible and can easily be applied to create irrigation maps for other regions.
Chromium Removal from Aqueous Solution Using Natural Clinoptilolite
Authors: Kurniawan Tonni Agustiono , Othman Mohd Hafiz Dzarfan , Adam Mohd Ridhwan , Liang Xue , Goh Huihwang , Anouzla Abdelkader , Sillanpää Mika , Mohyuddin Ayesha , Chew Kit Wayne
Published: April 2023

This work investigates the applicability of clinoptilolite, a natural zeolite, as a low-cost adsorbent for removing chromium from aqueous solutions using fixed bed studies. To improve its removal performance for the inorganic pollutant, the adsorbent is pretreated with NaCl to prepare it in the homoionic form of Na+ before undertaking ion exchange with Cr3+ in aqueous solution. This work also evaluates if treated effluents could meet the required effluent discharge standard set by legislation for the target pollutant. To sustain its cost-effectiveness for wastewater treatment, the spent adsorbent is regenerated with NaOH. It was found that the clinoptilolite treated with NaCl has a two-times higher Cr adsorption capacity (4.5 mg/g) than the as-received clinoptilolite (2.2 mg/g). Pretreatment of the clinoptilolite with NaCl enabled it to treat more bed volume (BV) (64 BV) at a breakthrough point of 0.5 mg/L of Cr concentration and achieve a longer breakthrough time (1500 min) for the first run, as compared to as-received clinoptilolite (32 BV; 250 min). This suggests that pretreatment of clinoptilolite with NaCl rendered it in the homoionic form of Na+. Although pretreated clinoptilolite could treat the Cr wastewater at an initial concentration of 10 mg/L, its treated effluents were still unable to meet the required Cr limit of less than 0.05 mg/L set by the US Environmental Protection Agency (EPA).
New Archaeobotanical Data from Villa Rustica at Oarda-Bulza (Alba County). The 2021 Campaign
Authors:   Universitatea “1 Decembrie 1918” Alba Iulia, Ciută Beatrice , Egri Mariana ,   Institute of Archaeology and History of Art Cluj-Napoca, Romanian Academy – Cluj Branch
Published: April 2023

New archaeobotanical data from villa rustica at Oarda-Bulza, located in south-western Transylvania, indicate that free-threshing wheat, Triticum aestivum (also known as bread wheat), was apparently the focus of farming activities, in contrast to pre-Roman times, when a more diverse agricultural crops system included greater amounts of emmer, barley and pulses. In addition to bread wheat remains, another important discovery is a cluster of charred seeds of Cannabis sativa (hemp) from the main building of the estate. These discoveries provide new information regarding the species cultivated and consumed by the community that lived in the area.
Keys and Locking Mechanisms Discovered in Graves from the Alburnus Maior and Apulum Cemeteries
Authors:   Școala de Studii Avansate a Academiei Române Cluj-Napoca, Lăpușan Bogdan
Published: April 2023

The analysis of graves could reveal information regarding the identity of the deceased individuals, the funerary rites that may have taken place, and the beliefs of the mourners. In this study were analysed seven graves: five graves (M53, M137, M222, M264 and M268) from the Alburnus Maior cemeteries, and two graves (G93 and M399) from the “Stația de salvare” and “Profi” zones of the cemetery situated in the northern part of the Municipium Septimium Apulense. Six graves include in their inventory one key and the last grave includes one bolt in the inventory. The keys have been used to secure possessions and public or private spaces by operating a locking mechanism, depending on the shape and pattern of the bit. In funerary contexts, the functionality of the keys may have symbolic meanings that can be related to certain deities which have these objects as attributes, or the keys and locking mechanisms may guard symbolically the possessions of the deceased person in the afterlife.
Figurative Lamps Depicting Silenus Discovered in Roman Dacia
Authors:   Institute of Archaeology and History of Art Cluj-Napoca, Romanian Academy – Cluj Branch, Cociș Sorin , Lăzărescu Vlad-Andrei ,   Institute of Archaeology and History of Art Cluj-Napoca, Romanian Academy – Cluj Branch
Published: April 2023

The paper discusses the few figurative plastic lamps with the representation of the god Silenus discovered in the Roman province of Dacia starting from the analysis of a recently found specimen at Optatiana / Sutor (Sălaj County, Romania). From a morphological perspective, all these artefacts consist of a central clay statuette around which a series of secondary functional elements are revolving, namely one or more clay lamps. The high quality of these plastic lamps (lychnophoroi) makes such artefacts extremely valuable, while their technical and artistic aspect indicates towards their local production. From a chronological point of view, the data related to their archaeological context of discovery (especially for the items discovered at Optatiana and Porolissum), suggests that such figurative plastic lamps are to be dated in Dacia during the 2nd century AD, representing the revival of a late Hellenistic tradition.
Barracks of the Roman Garrison in Olbia Pontica
Authors:   National Historical-Archaeological Reserve “Olbia” National Academy of Sciences of Ukraine, Department of Archaeology of the Lower Buh region Mykolaiv, Kozlenko Roman
Published: April 2023

In the article, on the basis of the discovered sites, new areas of the Roman garrison location are revealed, in the form of seven barracks (contubernia), which were added to the defensive wall and tower at the Lower city of Olbia Pontica. At the lateral quarter, which belonged to the Roman officer, there were found marble bases of the internal columns with the name of the centurion M. Emilius Severinus of the Legio I Italica. The architectural complex located to the south of the barracks in its layout resembles administrative buildings of the Roman camps like a principia – the officers’ house, which consisted of a number of rooms located along the perimeter around the courtyard: with a separate kitchen, a dining room, a central sanctuary room (aedes principiorum), where were stored legionary signs (signa militaria), altars, and statues of deities and emperors. This can be evidenced by the architectural details found during the excavations, terracotta in the shape of eagles and Roman soldiers, Roman weapons and equipment. A similar arrangement of barracks in Olbia is known on the citadel, under the Northern defensive wall. The problem of interpretation of the praetorium building in Olbia is also considered, some quarters of which could serve as Roman barracks. The construction of the barrack blocks and headquarters buildings can be attributed to the second half of the 2nd century AD – the time of the stationary Roman garrison appearance in Olbia.
The Case Study of the Graves Discovered in 1958 at Apulum-Dealul Furcilor Cemetery, Individual and Collective Social Identities in Roman Graves
Authors:   Școala de Studii Avansate a Academiei Române Cluj-Napoca, Musteață Marina , Gál Szilárd Sándor ,   Muzeul Județean Mureș Târgu Mureș
Published: April 2023

The Roman cemetery at Apulum, Dealul Furcilor is one of the well-known and researched Roman sites of this kind from Dacia. Archaeological excavations started in the 19th century and are continuing today. During the Romanian communist regime, the discovered graves and their inventory were published in archaeological reports. Unfortunately, the reports do not include a detailed description of the finds. Additional papers focused on the artefacts and their functionality within the graves were never written. For these reasons, the excavations from this period need reconsideration. Most of the discoveries made in 1958 were stored inside the deposit of The Archaeology and Art History Institute in Cluj-Napoca and were the main subject of my unpublished master’s thesis entitled Identități individuale și colective în necropola romană de la Apulum-Dealul Furcilor. Studiu de caz – descoperirile din anul 1958, “Babeș-Bolyai” University, Cluj. This article resumes the study made in the thesis, provides a detailed catalogue of the archaeological finds and an analysis of the osteological remains found in the deposit at Cluj-Napoca.
Magnetic Fields Reduce Apoptosis by Suppressing Phase Separation of Tau-441
Authors: Lin Wen-Juan , Shi Wen-Pu , Ge Wan-Yi , Chen Liang-Liang , Guo Wei-Hong , Shang Peng , Yin Da-Chuan
Published: April 2023

The biological effects of magnetic fields (MFs) have been a controversial issue. Fortunately, in recent years, there has been increasing evidence that MFs do affect biological systems. However, the physical mechanism remains unclear. Here, we show that MFs (16 T) reduce apoptosis in cell lines by inhibiting liquid–liquid phase separation (LLPS) of Tau-441, suggesting that the MF effect on LLPS may be one of the mechanisms for understanding the “mysterious” magnetobiological effects. The LLPS of Tau-441 occurred in the cytoplasm after induction with arsenite. The phase-separated droplets of Tau-441 recruited hexokinase (HK), resulting in a decrease in the amount of free HK in the cytoplasm. In cells, HK and Bax compete to bind to the voltage-dependent anion channel (VDAC I) on the mitochondrial membrane. A decrease in the number of free HK molecules increased the chance of Bax binding to VDAC I, leading to increased Bax-mediated apoptosis. In the presence of a static MF, LLPS was marked inhibited and HK recruitment was reduced, resulting in an increased probability of HK binding to VDAC I and a decreased probability of Bax binding to VDAC I, thus reducing Bax-mediated apoptosis. Our findings revealed a new physical mechanism for understanding magnetobiological effects from the perspective of LLPS. In addition, these results show the potential applications of physical environments, such as MFs in this study, in the treatment of LLPS-related diseases.
Mode Switching Control for Drag-Free Satellite Based on Region of Attraction
Authors: Lian Xiaobin , Zhang Jinxiu , Song Xiaozheng , Hong Zhenqiang , Zhou Shengpeng , Lin Mingpei
Published: April 2023

This paper aims to propose a switching rule to improve the efficiency and stability of the mode switching process for the drag-free satellite. The switching rules will ensure the stability of the different controllers during the switching process. Unlike traditional satellite switching control, the inner loop and the outer loop of the drag-free satellite are strongly coupled. The drag-free satellite not only needs to consider the controller design in the inner loop but also the controller design of the outer loop. In the outer loop, a Proportion Integration Differentiation control method is adopted to design the controller. In the inner loop, considering the release error effect of the test mass, a nonlinear sliding-mode control is employed as a controller before the mode switch. The H∞ mixed-sensitivity controller, to improve the robustness of the system and solve the problem of controller saturation, is designed after the mode switch. In the stability analysis of the switching system, the piecewise continuous Lyapunov function method is adopted. The region of attraction, which is used as the switching rule, is calculated based on the sum of squares. The obtained results demonstrate that the proposed switching rule satisfies the control accuracy and system stability.
Algunas apreciaciones en torno al tratamiento automático del verbo en español utilizando la herramienta Nooj
Authors: Rodrigo Andrea
Published: April 2023

En este trabajo, presentamos ciertas puntas de análisis para abordar el tratamiento automático del verbo en español. Nos referimos al tratamiento en función de la utilización de la herramienta NooJ, creada por Max Silberztein (2015). En primera instancia, nos detenemos en el diccionario y en la gramática flexiva asociada al mismo, explicitando tanto la que corresponde a los tiempos simples como a los tiempos compuestos sin obviar locuciones verbales como tomar en cuenta, llevar a cabo con las que tenemos que recurrir al operador

para poder indicar con claridad cuál es la parte de la locución susceptible de ser flexionada y cuál es la parte que debe quedar fija. A continuación, exponemos el aspecto morfológico (verbos formados de otros verbos con el prefijo re- y verbos formados con el sufijo –izar) y finalmente, diseñamos algunas gramáticas sintácticas con verbos transitivos e intransitivos, siempre desde las afirmaciones de Bès (1999) en torno a los sintagmas núcleos y a las unidades mayores que los contienen. En estas gramáticas, se muestra la ductilidad del editor gráfico de NooJ para dar cuenta tanto de la expresión de la concordancia como de las oraciones con sujetos tácito o bien de los grafos recursivos, por ejemplo, el spn (sintagma preposicional núcleo). En todos los casos, nos circunscribimos a ejemplos que corresponden a nuestro corpus, tanto en lo que respecta a la morfología como a la sintaxis.
CAD-CAE-CAM technology in the manufacture of a 3-jaw independent chuck prototype in acrylic
Authors: Rivas Rodriguez Amando , Becerra-Castro Juan Miguel , Tristán-Calleja Abel Israel , Vazquez-Sánchez Esteban
Published: April 2023

The use and application of CAD, CAE, CAM systems are increasingly necessary in the industry, (Arriaga Segundo, 1999) To meet the needs of the accelerated industrial transformation that is taking place in industrially developed and developing countries, it is essential that those involved in the Mexican metalworking industry. In the technological area, there is a machining center for 4 axes, of which only 3 are used, due to not having a chuck for the 4th axis, which is necessary to manufacture more complex parts, and to prepare future engineers in the use of this technology. For this reason, an acrylic mandrel prototype was designed and manufactured using CAD, CAM and CAE technology. To demonstrate its application and usefulness in the manufacture of complex parts. First, the components that make it up were designed in CAD software: clamps, "worm" screw and casing, to later carry out the finite analysis in CAE software, computer-aided engineering, ending with the simulation and manufacturing in CAM software. This will validate and demonstrate the feasibility of manufacturing the mandrel in steel, with existing resources and with a design that best suits the requirements.
Power quality analysis in Durango’s sewage treatment plant
Authors: Sifuentes-Godoy David Alejandro
Published: April 2023

This energy study is developed within a wastewater treatment plant by aerated lagoons, where a series of problems such as activation of temperature protections, phase loss and thermal protections are presented. When analyzing the electrical installation and the constitution of each motor, the hypothesis of a possible presence of harmonics outside the established ranges that are producing distortion and increase of the voltage and current signal, as well as a possible resonance, was raised. For this reason, it is intended to carry out an Electrical energy quality analysis in electrical machines of the PTAR de Aguas del Municipio de Durango, through specialized equipment and based on international standards. The power quality analysis contemplates the analysis of: voltage, current, individual harmonic content, THDv, THDi. The methodology proposed by Dugan, McGranaghan, Santoso, & Beaty (2004) and the performance of energy diagnoses according to what was established by Sifuentes et al (2016) were used. As a result, the confirmation of the hypothesis is obtained where the motor that contains power electronics is a source of harmonics that are amplified by the capacitor bank.
A rítmica maquinal (e outros atributos) na música no início do séc. XX
Authors: Unes Wolney
Published: April 2023

Neste artigo, parte-se de uma epígrafe em uma pequena peça para piano de 1922, para buscar evidenciar na música características do Zeitgeist do período entre-guerras. Apesar de tradicionalmente a história da música consignar o período como Modernismo ou Nacionalismo, busca-se identificar e agrupar traços em obras musicais do período que permitem estabelecer relações homológicas com o conjunto de características que marcaram as artes plásticas e a arquitetura do período. Mesmo que a tradição historiográfica da música não associe a estética dessa produção ao style moderne ou style 25, busca-se evidenciar a família espiritual do conjunto de obras surgidas no período.
Começar também é um gesto
Authors: Oliveira Rachel Cecília de
Published: April 2023

O artigo averigua o lugar da gestualidade no pensamento de Vilém Flusser a partir da experiência de trabalho remoto vivenciada durante a pandemia de Covid-19. Para tanto, associa o vídeo realizado pelo artista Fred Forest e Vilém Flusser em 1974 com o livro Gestos, analisando as várias versões publicadas em diferentes línguas, com foco para a singularidade da versão brasileira. O texto não é conclusivo, mas uma análise crítica em processo das questões atuais suscitadas pela teoria.
Baracca/ Teatro Testoni Ragazzi
Authors: Frabetti Roberto , Ferreira Taís
Published: April 2023

Este artigo apresenta ao público brasileiro o trabalho com teatro para crianças desenvolvido pelo La Baracca/Teatro Testoni Ragazzi em Bolonha e região ao longo de 45 anos. A partir de uma entrevista concedida por seu idealizador e coordenador Roberto Frabetti à pesquisadora, é traçado um panorama do contexto de criação e desenvolvimento do grupo, do trabalho criativo junto às crianças, da formação docente que realizam, do trabalho conjunto com escolas primárias e de educação infantil, prefeituras e dos esforços em gestão e promoção de políticas culturais para as infâncias empreendidos pelo grupo.
Oncocytic Carcinoma of Parotid Gland: A Case Report
Authors: Lumintang Nico , Tandililing Sherly , Ekawati Calenthia
Published: April 2023

Oncocytic carcinoma is a rare malignant carcinoma, representing only 5% of all oncocytic tumors. Furthermore, oncocytic carcinoma of the parotid gland is uncommon, accounting only for under 1% of all salivary gland tumors. We reported an 82-year-old female presented with a right parotid mass. She had experienced a similar complaint six months ago and had undergone treatment. Physical examination showed a mobile and painless cystic mass of the right parotid without facial nerve involvement. Fine needle aspiration biopsy (FNAB) finding suggested benign cystic lesions with inflammatory cells and amorphous debris. Subsequently, she underwent surgical tumor excision and right-sided partial parotidectomy. Histopathological examination showed proliferative tumor cells with an atypical nucleus, abundant eosinophilic cytoplasm, and solid, trabecular, and tubular growth pattern, suggesting an oncocytic carcinoma of the parotid gland. In conclusion, oncocytic carcinoma must be considered in all parotid gland tumors with oncocytic cells despite the rarity. Considering its recurrence and metastasis nature, patients with oncocytic carcinoma should remain in a long-term follow-up. The role of radiotherapy and chemotherapy remains controversial but may be used for treating advanced-stage cases or distant metastasis
Keywords: oncocytic carcinoma; parotid gland; partial parotidectomy
COMPARATIVE STUDY OF OPEN DESARDA'S NO-MESH REPAIR AND OPEN MESH REPAIR FOR INGUINAL HERNIA
Authors: Ravindra Babu D. , Thejadeep M.
Published: April 2023

Inguinal hernia is the most common among the hernias. The best treatment modality of it is primarily
surgical. Improvements in surgical techniques of inguinal hernia repair have signicantly improved the
outcomes for patients. The success rate of hernia surgeries is mostly noted by its permanence, amount of complications, cost
effectiveness, and duration to return to normal activity. Though mesh repair has gained popularity among the surgical repair of
hernias, it has certain limitations like availability of mesh, cost, learning curve and complications associated with it. Hence this
study is being carried out to compare the effectiveness of Desarda's no mesh repair, a newer cost effective method, with the
existing Lichtenstein's tension free repair, and to decide on a better treatment for inguinal hernia repair based on the results of
this study. A total of one hundred and twenty patients were included in the study. These patients were grouped into group A
(Desarda's repair group) and group B (Lichtenstein repair group) and randomization was done. Results of these two techniques were compared with respect to groin pain, surgical site infections,duration of hospital stay,duration to return to normal activity. There was no signicant differences regarding age, sex, type of hernia, duration of hernia in both the groups. The operation time was 49 minutes in Desarda's group and 54 minutes in the Lichtenstein group which was considered highly signicant. Over a period of two year follow-up there were no recurrences in both the groups. There were no surgical site infections in the Desarda's group when compared to Lichtenstein's repair. The occurrences of other complications like Loss of sensation over the groin, Scrotal edema, abdominal wall stiffness were not seen in Desarda's group, whereas its occurrence was highly signicant in Lichtenstein's group. The mean hospital stay was 4days in Desarda's group while it was 6days in the Lichtenstein group in those patients who were hospitalized. The current study showed that Desarda's technique is easy to learn and simple method when compared to other tissue repair techniques and requires no mesh. It can be performed under local anesthesia when patient is unt for Regional /General anesthesia and is associated with a less duration of surgery and less mesh associated postoperative complications, with a rapid recovery time.
FIXED DOSE COMBINATION OF OFLOXACIN AND ORNIDAZOLE WITH CROSSSENSITIVITY TO METRONIDAZOLE INDUCED FIXED DRUG ERUPTION
Authors: R Yukesh , Venkata Ramana V. , Srinivasa Rao R.
Published: April 2023

Fixed drug eruption (FDE) is a recurrent, clearly dened lesion that consistently develops at the same location after taking the offending substance [1]. The lips, face, hands, feet, and genitalia are the typical sites for the lesions [2]. It can be identied by its benign character, short latency, and recurrence at the same places on rechallenge. Resting FDE lesions contain CD8+ T-cells with a memory characteristic that were situated at the dermal-epidermal junction and are silent until the drug is re-challenged after healing. Most FDE cases have excellent prognoses and are selflimiting. After the acute incident, post-inammatory hyperpigmentation can be noticeable and last for several months. Ooxacin is a uoroquinolone of second-generation that prevents the synthesis of microbial DNA. Ornidazole is a 5- nitroimidazole with antibacterial and antiparasitic properties. Metronidazole has broad-spectrum cidal action against anaerobic protozoa. It is frequently given in combination with other antimicrobial agents to treat polymicrobial infections with aerobic and anaerobic bacteria. The most frequent combination causing xed drug eruption among the anti-microbial FDC is uoroquinolones + nitroimidazole. We report a case of ornidazole with cross-sensitivity to metronidazole-induced xed drug eruption in an adult male of thirties treated for diarrhea.
ROLE OF ANATOMICAL LANDMARKS IN IDENTIFYING FACIAL NERVE DURING PAROTIDECTOMY: OUR EXPERIENCE
Authors: Modi Niral , Shah Priyanshi
Published: April 2023

Facial nerve paralysis is a common complication during parotid surgery. Various anatomical landmarks are useful for identifying facial nerve location intraoperatively. Our study was conducted in G G Hospital, Jamnagar among 30 patients. Three landmarks which were studied were tragal pointer, tympanomastoid suture, posterior belly of digastric muscle. Tragal pointer was easiest to identify, but mobile, whereas tympanomastoid suture was most consistent in location but difcult to identify. Facial nerve was found to be 1cm above and parallel to upper border of posterior belly of digastric muscle near insertion of mastoid tip.
RELATIONSHIP AMONG FIVE- POINT, SEVEN- POINT AND NINE-POINT SCALE OF HEALTH ASSESSMENT QUESTIONNAIRE WHEN ADMINISTERED TO FEMALE SPORTSPERSONS (A VALIDATION)
Authors: Kaur Manmohan , Rawat Sukanya , Shaw Dhananjoy
Published: April 2023

Currently there are many scales available for the administration of a questionnaire. The approval of vepoint and seven-point are well accepted across studies. The author wanted to compare the reliability of the three scales and imply the appropriateness of the scale as a data collected tool. 25 college going females involved in team games participated in this study. The Health Assessment Questionnaire (HQ) was administered to the females at different times (two days apart) using scales namely ve-point, seven-point, and nine-point scale. The scores were associated between the three selected scales using the Pearson's coefcient of correlation. The results were found to support the use of nine-point scale for the administration of the HQ.
HISTOPATHOLOGICAL SPECTRUM OF BRAIN LESIONS IN PATIENTS ATTENDING TO RIMS,
RANCHI – A RETROSPECTIVE STUDY
Authors: Shalini Toppo Shikha , Ravi Renu , Maity Jayashree
Published: April 2023

Background- The CNS space occupying lesions cause grave life-threatening outcomes irrespective of their nature as they grow in a confined space and are present close to vital structures Hence, it is of great importance to establish the accurate diagnosis for proper and timely neurosurgical intervention Tumours of central nervous system (CNS) are reported to be less than 2 % of all malignancies.In India,CNS tumours constitute about 1.9 % of all tumours.Method - A retrospective study carried out in RIMS hospital for all the brain tissue specimen that have come for the histopathological examination, for a duration of one year (February2021 - January2022) among 78 cases of CNS lesions collected from archives of Department of Pathology.Results- Astrocytoma was the most common entity followed by Meningioma while 2.56% cases were metastatic in this study sample. Conclusion- The present study helps to provide information regarding the disease burden in our area.This study attempts to categorise various CNS neoplasms as per recent WHO classification (2016) which has not only diagnostic implication but also has significant prognosis and predictive value.
COMPARATIVE STUDY OF PERCUTANEOUS NEPHROLITHOTOMY IN SUPINE VERSUS PRONE POSITION
Authors: Dhinakar Babu N. , Mohan Kumar D.
Published: April 2023

Prone positioning in percutaneous nephrolithotomy is more and more being replaced by supine positioning now a days for its various benefits. This is a prospective study which does Comparative study on percutaneous nephrolithotomy in supine versus prone position and their various outcomes were analysed. There were totally 100 patients included in the study with 50 patients each group (supine versus prone). 57 were male and 43 female patients. Age ranging from 18 to 70 years. Right side stones were 58 and left side was 42. Age, gender and side of stones were similar between two groups. Stone burden were 2.6cm and 2.9cm for supine and prone group respectively. But average operating time were 63.5 minutes ( 35 to 120 minutes) for supine group versus 80 minutes ( 45 to 160 minutes) for prone group. fluoroscopy time was 18.9 minutes for supine group versus 29.4 minutes for prone group. Clearance rate in our study were pretty good in both groups around 90% in both groups (90% vs 88%). five had complications in form of sepsis and bleeding requiring blood transfusion in both groups. Five in supine group and six in prone group required second procedures. Thus Supine percutaneous nephrolithotomy group had significant advantage in terms of less operative duration and less fluoroscopy time than prone percutaneous nephrolithotomy . The stone clearance and complication rates were similar in both the groups
IMPACTED BUTTON BATTERY MASQUERADING AS RECURRENT EPISTAXIS IN AN CHILD.
Authors: Singla Abha
Published: April 2023

Epistaxis in children is one of the most common referral dealt by an ENT outpatient department . Here we report a case of a 2-year-old girl who presented with complaints of recurrent episodes of epistaxis and discharge from the right nasal cavity since 1 month duration. Endoscopic examination of the right side of nose revealed a button battery impacted between the inferior turbinate and the cartilaginous portion of nasal septum.
A PROSPECTIVE STUDY ON BONE MARROW ASPIRATION AS AN IMPORTANT DIAGNOSTIC
PROCEDURE – AT TERTIARY CARE HOSPITAL
Authors: Jayant Santosh , Mishra Vartika , Gaur Rajesh , Iyengar Sudha
Published: April 2023

Background: Bone marrow aspiration has been a useful tool in determining hematological disorders . It is relatively safe procedure which can be performed on outpatient basis. To study the spectrum of lesions on bone marro Objectives: w aspiration. The study was conducted in the department of pathology, Gajraraja Medical College , Gwa Methods: lior (M.P.) . This prospective study was conducted over a period of 2.5 years( January 2020 to july 2022). It Results: In present study 149 cases of bone marrow aspirations were done over a period of 2.5 years. Malignant cases (26.17%) outnumbered benign cases (51%). Nutritional anemia was common among anemias . Acute leukemia was commonest among malignant cases. Bone marrow aspiration is an important, rapid and cost effective tool in dia Conclusion: gnosis hematological disorders and to some extent in non hematological disorders.
Analysis and Characterization of an Unclassified RFI Affecting Ionospheric Amplitude Scintillation Index over the Mediterranean Area
Authors: Pica Emanuele , Minetto Alex , Cesaroni Claudio , Dovis Fabio
Published: April 2023

Radio Frequency (RF) signals transmitted by Global Navigation Satellite Systems (GNSS) are exploited as signals of opportunity in many scientific activities, ranging from sensing waterways and humidity of the terrain to the monitoring of the ionosphere. The latter can be pursued by processing the GNSS signals through dedicated ground-based monitoring equipment, such as the GNSS Ionospheric Scintillation and Total Electron Content Monitoring (GISTM) receivers. Nonetheless, GNSS signals are susceptible to intentional or unintentional RF interferences (RFIs), which may alter the calculation of the scintillation indices, thus compromising the quality of the scientific data and the reliability of the derived space weather monitoring products. Upon the observation of anomalous scintillation indices computed by a GISTM receiver in the Mediterranean area, the study presents the results of the analysis and characterization of a deliberate, unclassified interferer acting on the L1/E1 GNSS signal bands, observed and captured through an experimental, software defined radio setup. The paper also highlights the adverse impacts of the interferer on the amplitude scintillation indices employed in scientific investigations, and presents a methodology to discriminate among regular and corrupted scintillation data. To support further investigations, a dataset of baseband signals samples affected by the RFI is available at IEEE DataPort. 
Age-related Gait Patterns Classification Using Deep Learning Based on Time-series Data from One Accelerometer
Authors: Zheng Xiaoping , Wilhelm Elisabeth , Reneman Michiel F , Otten Egbert , Lamoth Claudine JC
Published: April 2023

preprint paper