bluuebunny/crossref_metadata_2025 huggingface dataset:
CLASSY. VIII. Exploring the Source of Ionization with UV Interstellar Medium Diagnostics in Local High-z Analogs*
Authors: Mingozzi Matilde , James Bethan L. , Berg Danielle A. , Arellano-Córdova Karla Z. , Plat Adele , Scarlata Claudia , Aloisi Alessandra , Amorín Ricardo O. , Brinchmann Jarle , Charlot Stéphane , Chisholm John , Feltre Anna , Gazagnes Simon , Hayes Matthew , Heckman Timothy , Hernandez Svea , Kewley Lisa J. , Kumari Nimisha , Leitherer Claus , Martin Crystal L. , Maseda Michael , Nanayakkara Themiya , Ravindranath Swara , Rigby Jane R. , Senchyna Peter , Skillman Evan D. , Sugahara Yuma , Wilkins Stephen M. , Wofford Aida , Xu Xinfeng
Published: February 2024

In the current JWST era, rest-frame UV spectra play a crucial role in enhancing our understanding of the interstellar medium (ISM) and stellar properties of the first galaxies in the epoch of reionization (z > 6). Here, we compare well-known and reliable optical diagrams sensitive to the main ionization source (i.e., star formation, SF; active galactic nuclei, AGN; and shocks) to UV counterparts proposed in the literature—the so-called “UV–BPT diagrams”—using the HST COS Legacy Archive Spectroscopic SurveY (CLASSY), which is the largest high-quality, high-resolution, and broad-wavelength range atlas of far-UV spectra for 45 local star-forming galaxies. In particular, we explore where CLASSY UV line ratios are located in the different UV diagnostic plots, taking into account state-of-the-art photoionization and shock models, and, for the first time, the measured ISM and stellar properties (e.g., gas-phase metallicity, ionization parameter, carbon abundance, and stellar age). We find that the combination of C iii] λ
λ1907,9 He ii
λ1640 and O iii] λ1666 can be a powerful tool to separate between SF, shocks, and AGN at subsolar metallicities. We also confirm that alternative diagrams without O iii] λ1666 still allow us to define an SF-locus, with some caveats. Diagrams including C iv
λ
λ1548,51 should be taken with caution given the complexity of this doublet profile. Finally, we present a discussion detailing the ISM conditions required to detect UV emission lines, visible only in low gas-phase metallicity (12 + log(O/H) ≲ 8.3) and high ionization parameter (log(U) ≳ −2.5) environments. Overall, CLASSY and our UV toolkit will be crucial in interpreting the spectra of the earliest galaxies that JWST is currently revealing.
Muted Features in the JWST NIRISS Transmission Spectrum of Hot Neptune LTT 9779b
Authors: Radica Michael , Coulombe Louis-Philippe , Taylor Jake , Albert Loic , Allart Romain , Benneke Björn , Cowan Nicolas B. , Dang Lisa , Lafrenière David , Thorngren Daniel , Artigau Étienne , Doyon René , Flagg Laura , Johnstone Doug , Pelletier Stefan , Roy Pierre-Alexis
Published: February 2024

The hot Neptune desert is one of the most sparsely populated regions of the exoplanet parameter space, and atmosphere observations of its few residents can provide insights into how such planets have managed to survive in such an inhospitable environment. Here, we present transmission observations of LTT 9779 b, the only known hot Neptune to have retained a significant H/He-dominated atmosphere, taken with JWST NIRISS/SOSS. The 0.6–2.85 μm transmission spectrum shows evidence for muted spectral features, rejecting a perfectly flat line at >5σ. We explore water- and methane-dominated atmosphere scenarios for LTT 9779 b’s terminator, and retrieval analyses reveal a continuum of potential combinations of metallicity and cloudiness. Through comparisons to previous population synthesis works and our own interior structure modeling, we are able to constrain LTT 9779 b’s atmosphere metallicity to 20–850× solar. Within this range of metallicity, our retrieval analyses prefer solutions with clouds at millibar pressures, regardless of whether the atmosphere is water or methane dominated—though cloud-free atmospheres with metallicities >500× solar cannot be entirely ruled out. By comparing self-consistent atmosphere temperature profiles with cloud condensation curves, we find that silicate clouds can readily condense in the terminator region of LTT 9779 b. Advection of these clouds onto the dayside could explain the high dayside albedo previously inferred for this planet and be part of a feedback loop aiding the survival of LTT 9779 b’s atmosphere in the hot Neptune desert.
Effectiveness of Frenuloplasty in Ankyloglossia on Speech Quality: A Systematic Review
Authors: Ariestiana Yossy Yoanita , Gazali Mohammad , Basyar Husnul
Published: February 2024

BACKGROUND: Ankyloglossia, known as tongue-tie, is an inherited anomaly and is caused by a short nonelastic frenulum that causes limited tongue movement. Because of the limitations of tongue movement, it can affect the quality of speech. Ankyloglossia treatment is to divide or separate fibrous bands or frenuloplasty. The purpose of making this systematic review is to systematically review the results of frenulopasty governance in cases of ankyloglossia related to speech quality.
AIM: The aim of this systematic review is to explain the original study in patients with Ankiloglosia who underwent a frenectomy procedure on the tongue tie. This study included research evaluating results related to speech quality.
METHODS: PubMed, EMBASE, and Cochrane Databases, No restrictions on published studies until September 10, 2021. Studies are included if subjects of all ages have ankyloglossia and performed frenuloplasty procedures. The results assessed were the level of speech quality in the subjects of preoperative ankyloglossia and postoperative frenuloplasty.
RESULTS: Overall, 473 abstracts resulted from literature searches; 13 studies met the criteria for data extraction and analysis. Of the 13 studies, eight studies were Randomize control trial studies and 5 case–control studies. Three studies evaluated speech outcomes using Likert scores, 3 studies using questionnaires, and 7 studies using different assessments pre-operative and post-operative speech quality.
CONCLUSION: Frenuloplasty in subjects with ankyloglossia mostly gives good results in terms of speech quality. Improvements in articulation and mention of consonant phonation improve after frenuloplasty. Frenuloplasty with the 4 flap Z-Plasty Technique provides better results compared to conventional and horizontal vertical frenuloplasty. A long-term study of the correlation of ankyloglossia and speech difficulties and the effects of frenuloplasty is needed.
Range extension and expanded description of Micryletta hekouensis
Authors: Tan Nguyen , Liu Shuo , Tran Vy , Tran Thinh G. , Trofimets Alexei V. , Dau Vinh , Poyarkov Nikolay
Published: February 2024

The Paddy frog species Micryletta hekouensis was described based on only two specimens from Nanxi Village, Nanxi Town, Hekou County, Honghe Prefecture, Yunnan Province, China. Herein, we report on new findings and a range extension of this species based on a re-examination of preserved specimens deposited in Duy Tan University (DTU) and Zoological Museum of Lomonosov Moscow State University (ZMMU) collected from Vietnam. All new specimens were previously identified as Micryletta cf. inornata or M. cf. steinegeri. Molecular analyses based on mitochondrial DNA supported the morphological findings. The newly identified specimens have a pairwise divergence of only 0.7% from those of the type series of M. hekouensis (based on the 16s rRNA mtDNA gene). Based on the new information, we confirm the presence of M. hekouensis in Vietnam and update the diagnostic characters of this species and distribution. We suggest the species should be considered as Near Threatened (NT) following the IUCN’s Red List categories. Further studies reassessing the populations of the Micryletta inornata complex in Indochinese Region (including: Vietnam, Laos, Cambodia, Thailand) are required.
A new species of Tanna Distant, 1905 from Yunnan, China (Hemiptera, Cicadidae, Cicadinae)
Authors: Wang Cheng-Bin
Published: February 2024

The genus Tanna Distant, 1905 (Hemiptera, Cicadidae, Cicadinae, Leptopsaltriini, Leptopsaltriina) currently includes 23 species (three tentatively placed), with its actual geographical distribution in China, Japan, Nepal, Bhutan, Cambodia, Thailand and Vietnam. Most of them, 16 species, are known from China, including one new species here described.

A new species of cicada, Tanna fengi Wang sp. nov., is described from Yunnan, southwest China. Colour plates are presented to illustrate all diagnostic characters. An updated list of Tanna species occurring in China is provided.
Evaluation of types and concentration of bile salts impact on physical properties of nisoldipine-loaded bilosomes
Authors: Naji Ghada Hamid , Al Gawhari Fatima J.
Published: February 2024

Background: Bilosomes are lipid vesicles that exhibit flexibility and deformability. They consist of phospholipids and amphiphilic bile salts. Compared to the normal vesicular systems such as liposomes and niosomes, bilosomes provide several notable advantages, including simplified manufacturing, cost-effectiveness, and enhanced stability.

Aim: The main objective of the present work was to evaluate the effect of different bile salts on the physical properties that include entrapment efficiency, vesicle size, and polydispersity index(PDI). In addition, in vitro drug release for nisoldipine (NSD) loaded bilosomes was evaluated.

Methods: Nisoldipine-loaded bilosomes were made using a thin film hydration technique. Cholesterol along with surfactant (span 60) was employed, and the formulation also contained several different bile salts, including sodium deoxycholate (SDC), sodium glycocholate (SGC), and sodium taurocholate (STC).

Results: The developed NSD bilosomes exhibited an entrapment efficiency ranging from 44.2 ± 0.3 to 82.36 ± 0.80% and a vesicle size diameter in the nanometric dimensions (166 ± 1.83 to 237.8 ± 3.3 nm). An in-vitro release study revealed that formulas prepared with SDC bile salts showed higher drug release than SGC and STC formulas.

Increasing the bile salt amount from 5 mg to 10 mg increases entrapment efficiency with increasing vesicle size. Further increase in bile salt led to decreased entrapment efficiency with increased vesicle size. SDC gives the best result in terms of entrapment efficiency and acceptable size. STC provides the largest particle size due to its high molecular weight compared to SGC and SDC.

Conclusion: The SDC bile salt component is better suited for manufacturing NSD bilosomes. This is because this component yields the best results regarding high entrapment efficiency, nano size, and prolonged drug release.
Proposed Model for Real-Time Anomaly Detection in Big IoT Sensor Data for Smart City
Authors: Hasani Zirije , Krrabaj Samedin , Krasniqi Marigona
Published: February 2024

A smart city represents an advanced urban environment that utilizes digital technologies to improve the well-being of residents, efficiently manage urban operations, and prioritize long-term sustainability. These technologically advanced cities collect significant data through various Internet of Things (IoT) sensors, highlighting the crucial importance of detecting anomalies to ensure both efficient operation and security. However, real-time identification of anomalies presents challenges due to the sheer volume, rapidity, and diversity of the data streams. This manuscript introduces an innovative framework designed for the immediate detection of anomalies within extensive IoT sensor data in the context of a smart city. Our proposed approach integrates a combination of unsupervised machine learning techniques, statistical analysis, and expert feature engineering to achieve real-time anomaly detection. Through an empirical assessment of a practical dataset obtained from a smart city environment, we demonstrate that our model outperforms established techniques for anomaly detection.
Analyzing Facebook Mobile Usage: Efficacy and ESL Learners’ Writing Proficiency
Authors: Alam Sohaib , Usama Mohammad , Hameed Ansa , Iliyas Sana
Published: February 2024

Facebook has leveraged rapid technological and societal changes over the past decade and has emerged as the largest social networking platform. However, research on Facebook has been limited, particularly when examining its potential to improve English as a second language (ESL) writing in comparison to a control group. The study aims to explore the morphological, syntactic, and orthographical aspects of ESL writing through an experimental group [N = 30] using Facebook on mobile and a control group [N = 30] with a traditional teaching approach. The experimental and control groups undergo observation through twice-weekly, in-class-focused free writing sessions for 10 weeks. The progress of the learners’ writing was tracked using pre- and post-tests to assess its impact. The analysis of variance (ANOVA) test revealed that the experimental group made more significant advancements in writing by reducing morphological, syntactic, and orthographical errors compared to the control group. These results validate previous studies that support the use of Facebook on mobile devices in ESL courses and emphasize the need for further research comparing Facebook with other writing platforms.
Use of Chat GPT in English for Engineering Classes: Are Students’ and Teachers’ Views on Its Opportunities and Challenges Similar?
Authors: Synekop Oksana , Lytovchenko Iryna , Lavrysh Yuliana , Lukianenko Valentyna
Published: February 2024

Mobile technologies have become increasingly important in the field of education, providing innovative ways to engage students and enrich their learning experiences. ChatGPT is an innovative tool that can be used in English for Specific Purposes (ESP) classes to engage students, enhance their knowledge and skills, and add variety and interest to the traditional process of learning engineering English, whether accessed through computers or mobile devices. In light of this, the study aims to investigate and compare the attitudes of technical university students and teachers towards using ChatGPT in English classes, as well as their perspectives on academic integrity issues and the strategies they employ when using ChatGPT. The study involved 22 teachers and 60 students from a Ukrainian university. Quantitative research, which involved collecting data through surveys, showed that students exhibited positive attitudes, while teachers took a more neutral approach. Both groups agree that ChatGPT plays a supplementary role in enhancing both hard and soft skills, as well as English language communication skills. However, they emphasized its impact on the development of research skills. The study highlights critical issues related to academic integrity, specifically the differing perceptions of possible violations between students and teachers. The authors present ideas on integrating ChatGPT into ESP classes, enabling teachers to leverage artificial intelligence (AI) tools for language learning and adapt to changing educational landscapes. The study emphasizes the importance of integrating ChatGPT effectively into engineering English classes to support students’ learning. While emphasizing the importance of guidelines for academic integrity, it also advocates for the creative use of AI tools by teachers and students. Addressing the disparity in attitudes suggests providing teacher professional development to ensure proficient use of AI tools.
L’anthropologie urbaine : de ses périphéries à ses centres
Authors: Raulin Anne
Published: February 2024

Retracer l’histoire de l’anthropologie urbaine implique un mouvement de lecture centripète, allant des terrains lointains, périphériques, dits alors exotiques ou en « situation coloniale » vers des terrains proches, ceux des villes françaises. Dès lors, la centralité parisienne, en particulier en matière d’institutionnalisation de la discipline, apparaît problématique et à dépasser, de même que la demande publique d’une approche ethnographique au plus proche du terrain qui tend à mettre la recherche au service des politiques. Des alternatives sont présentées comme celle de l’anthropologie réciproque autorisant de porter de l’extérieur un regard anthropologique sur la France urbaine, inversant ainsi le sens de l’observation entre centres et périphéries. Ce sont certaines des thématiques de ce courant de pensée que l’association AnthropoVilles entend poursuivre.
Marrons et réfugiés entre Guyane française et Brésil : nouvelles sources et nouvelles approches
Authors: Huyghues-Belrose Vincent
Published: February 2024

Cet article est la mise à jour d’une communication « Sources pour l’histoire de l’esclavage en Amazonie dans les fonds de Guyane française » faite à l’université du Pará, à Belém, en novembre 1988. Il considère d'abord l’approfondissement des recherches depuis 1960 sur les évasions d’esclaves entre la Guyane française et le Brésil (Pará) et l’enrichissement des sources utilisées. Il montre ensuite l’importance des missionnaires jésuites et spiritains dont la position et le rôle vis-à-vis des fuyards sont reconsidérés ainsi que l’influence des « réfugiés portugais » sur la Guyane française.
Les aspirations à l’assimilation à l’épreuve de la présence du bagne dans la colonie de la Guyane française (1879-1938)
Authors: Lama Boris
Published: February 2024

Au cours de la seconde moitié du xixe siècle, la revendication de l’assimilation chez les acteurs politiques de la Guyane française est mise à mal par la présence du bagne dans la colonie. Notre article analyse les prises de position des notables et des membres du Conseil général durant la mise en place de la Relégation (1885) et après la Grande Guerre, les élites estiment que la participation des Guyanais à ce conflit, prouve leur francité et justifie la suppression du bagne.
L’histoire par les lieux : odonymes et monuments comme documents historiques pour les Antilles françaises et la Guyane ?
Authors: Moomou Jean
Published: February 2024

L’article s’intéresse à une analyse des odonymes (rues, boulevards, établissements scolaires, stades, etc.) et aux monuments présents dans l’espace public des villes-chefs-lieux de ces territoires, entre le xviiie et xxe siècle. Il s’agit de montrer de quelle manière les odonymes et les monuments de l’espace public peuvent être aussi des matériaux pour une approche de l’histoire des Antilles françaises et de la Guyane ; de souligner les limites d’un tel outil qui ne permet pas l’élaboration d’une théorie générale.
O romance dos pais, o romance dos filhos: os personagens secundários de Alejandro Zambra
Authors: Lopes Isabela Cordeiro
Published: February 2024

Em torno da noção de “personagens secundários”, este trabalho procura investigar as relações estabelecidas pelo narrador do romance Formas de voltar para casa, de Alejandro Zambra, especialmente nos contextos escolar e familiar. Situado no pós-ditadura, os personagens que dividem a narrativa do texto têm em comum o fato de terem sido crianças e adolescentes no período da ditadura militar no Chile. A esses “hijos de la dictadura” cabe ocupar o mundo dando sentido a suas experiências de, ao mesmo tempo, papéis secundários e protagonismo de suas memórias e da memória nacional. A forma com que isso é elaborado ficcionalmente é o que interessa a este trabalho, em uma leitura detida dos papéis desempenhados por esses personagens.
Soil Quality Prediction Using Deep Learning
Authors: Babu C. V. Suresh , Yadavamuthiah K.
Published: February 2024

This research introduces a state-of-the-art method for predicting soil quality using deep learning algorithms. It utilizes a comprehensive dataset of physical, chemical, and biological parameters collected from multiple sites. The model combines long short-term memory (LSTM) networks to capture temporal relationships and convolutional neural networks (CNNs) to extract features from soil samples. Extensive experiments demonstrate the model's superiority over conventional machine learning methods, accurately predicting soil quality. The implications extend to sustainable land management, environmental monitoring, and precision agriculture. The CNN model achieves high accuracy in classifying soil quality and identifies influential variables. The study showcases its proficiency in predicting various soil measures and employs cross-validation to ensure consistency. This research contributes to the field by offering a precise and reliable approach to soil quality prediction, aiding decision-making in sustainable land management.
A Multi-Stage Approach Combining Feature Selection With Machine Learning
Authors: Pyne Ria , Maji Suman , Khang Alex , Chaudhuri Avijit Kumar , Ghosh Shivnath
Published: February 2024

The coronavirus pandemic is an unprecedented global crisis that poses not only a serious threat to physical health but also the challenge of mental illness. This case study highlights the multifaceted impacts of the mental illness epidemic by exploring the interplay of social, emotional, and economic factors. Through a combination of survey studies, qualitative interviews, and expert observations, this research highlights the range of mental health issues experienced by individuals from different groups of people. In this chapter, the authors presented a machine learning model that can investigate trust-related issues based on real-life data. The authors reduce computational complexity by trying to build models with fewer features. To develop the model, the authors followed four steps: collecting data through face-to-face interviews, asking for details, using different classification methods, and comparing and sharing the performance of different algorithms.
AI-Driven Predictive Model
Authors: Gour Sonam , Khang Alex
Published: February 2024

The COVID-19 epidemic has given an unusually terrible circumstance for the entire planet, terrifyingly stopping life, and taking thousands of lives. COVID-19 continues to pose a serious threat to the public health system due to its expansion to 212 nations and territories, rising incidence of infection cases, and death tolls of 5,212,172 and 334,915 (as of May 22, 2020). This initiative uses artificial intelligence (AI) to produce a response to fight the infection. Several deep learning (DL) techniques have been demonstrated to accomplish this, including long/short term memory, extreme learning machine (ELM), and generative adversarial networks (GANs). It describes an integrated approach to bioinformatics that combines a number of features for both structured and unstructured data sources to produce user-friendly platforms for physicians and academics. The speedier detection and treatment of COVID-19 illnesses is the main advantage of these AI-based solutions. In an attempt to identify the approach with the best accuracy and results, the work proposed a number of different approaches.
Application of Origami Engineering in the Formation of Complex Spring Shapes of Thin Steel Plates via Laser Quenching Forming
Authors: Mima Yusuke , Hirogaki Toshiki , Aoyama Eiichhi
Published: February 2024

In this study, the controllability of the spring performance of complex sheet spring shapes was investigated to develop complex sheet spring shapes that are based on origami engineering, with the aim of integrating laser hardening formation with origami engineering. The number of forms generated during the same development was predicted from an origami engineering perspective, and two forms that agreed with the experimental results were generated. Consequently, the rigid-body origami simulation showed that the deformation behavior differs from that of the measured values, which is considered to be in accordance with elastic-body origami. Moreover, springs with arbitrary performances could be produced by varying the processing time and form.
Consideration of Moisture Factor during Material Selection in Plastic Product Design
Authors: Kukcu Burak , Dasdemir Buse
Published: February 2024

This research paper aims to investigate the significance of considering the humidity factor during material selection in plastic product design. Humidity is a crucial environmental parameter that can profoundly influence the properties and performance of plastic materials. To ensure the long-term performance and dependability of plastic products, it is essential to comprehend and take into consideration the impacts of moisture on plastics. Humidity plays a fundamental role in the degradation and functional changes of plastic materials. Moisture absorption can lead to reduced mechanical strength and accelerated degradation processes. The selection of appropriate materials that can withstand humid conditions becomes paramount in product design. For this reason it is important to evaluate the moisture absorption properties of plastic materials. Different polymers exhibit varying degrees of moisture diffusion rates that directly affect their performance in humid environments. Evaluation of moisture measurement results allows designers to make informed decisions during material selection. For this reason, we designed an experiment to investigate which material retains less moisture. In our research, we determined 2 different experimental groups. The first of these groups (type A) was kept under normal conditions by adding glass fiber additive at different rates to the PA66 material, and each product with 3 different additives was tested for moisture for 10 days and the results were recorded. In the second experimental group, type B, the products produced with the same material and additives at the same rate were kept in water for 24 hours, then they were removed from the water and moisture tests were performed. It is aimed to make material selection by interpreting the test results and thus to facilitate the making of designs suitable for use.
Effect of Individual Alloying Addition on the Microstructure and Creep Behavior of Squeeze Cast AZ91 Magnesium Alloy
Authors: Patil Hitesh , Ghosh Abhijit , Borkar Hemant
Published: February 2024

The microstructure of AZ91 (Mg-Al) alloy is comprised of α-Mg and β-Mg17Al12 massive phase. The lower melting point associated with the β-Mg17Al12 phase results in poor creep resistance of the alloy. In the present study, the AZ91 alloy with the addition of calcium (Ca, 1wt%) and cerium (Ce, 1wt%) is cast, and their effect on the microstructure and creep behavior of AZ91 alloy have been investigated. Thermally stable phases such as Al2Ca and Al11Ce3 are introduced in the AZ91 alloy through the addition of Ca and Ce elements. Energy dispersive spectroscopy (EDS) and x-ray diffraction analysis confirmed the presence of these intermetallic phases in the microstructure. Tensile creep tests on the as-cast samples were performed at 175°C temperature under 50 MPa stress. The study shows that the creep resistance of AZ91 alloy is greatly improved with the presence of Al2Ca and Al11Ce3 intermetallic phases because of their better thermal stability than β-Mg17Al12.
Weldability and Joining of Dissimilar Metal Welding between Low Carbon Steel and Ferritic Stainless Steel
Authors: Luijan Jinkamon , Eidhed Krittee , Surin Prayoon
Published: February 2024

This paper is to study weldability and joining characteristics of dissimilar metal welding between low carbon steel and ferritic stainless steel using ER308L and ER309L filler wires. Weldability and welded joints were evaluated by microstructure analysis and bend test. It was observed that the microstructure of the fusion zone and the bend test of the welded joint were significantly affected by welding parameters and filler wire. A welded joint prepared with high heat input using the ER309L filler wire exhibited a significant delta ferrite and austenite microstructure. In contrast, when employing the ER308L filler wire with a high intensity welding current, martensite, and carbide formed at the fusion zone. The bend property was acceptable for all the specimens, and there was no evidence of solidification cracking.
Study on the Material Models of the Forming Limit Curves Development for Predicting a Fracture Behavior of AA5754-O in Automotive Parts
Authors: Larpprasoetkun Phiraphong , Leelaseat Jidapa , Nakwattanaset Aeksuwat , Sunanta Aekkapon , Suranuntchai Surasak
Published: February 2024

The forming limit curve (FLC) is commonly used to predict the formability behavior of sheet metal after the forming process. In this research, the forming limit curve generated from the Materials Model was applied to analyze and predict the fracture behavior of the fuel tank workpiece, a motorcycle part made of AA5754-O material, using the deep drawing process simulated by the finite element method. The research involved a comparison with actual cracks that occur in the automotive industry after molding. To determine the mechanical properties of the AA5754-O material for use in the forming limit curve, a specimen with a thickness of 1.5 mm was subjected to a tensile strength test, providing the necessary input for the mechanical properties in the forming limit curve based on the Keeler-Beizer equation. The forming limit curve is a correlation graph between major strain and minor strain. When the FLC is created from the Materials Model, it is utilized in conjunction with deep drawing drag simulation in the PAM-STAMP program to predict the fracture point. The accuracy of the mathematically generated FLC in predicting fracture behavior was verified after the deep drawing process. The study found that the FLC based on the Keeler-Beizer equation can accurately predict the cracking behavior of AA5754-O sheet metal, enabling identification of the fracture location during the deep drawing process. One advantage of creating the FLC from the material models is its compatibility with the same material but with different workpiece shapes, allowing its use in conjunction with molding simulations using various programs. This approach saves costs associated with testing to obtain the FLC.
Determinants of E-books Usage of Undergraduates; With Special Reference to Faculty of Commerce and Managment Studies, University of Kelaniya
Authors: Yapa Jinanjali , Ranasinghe Vimansha
Published: February 2024

When learning merges with technology, it creates an e-learning environment. Such environments integrate with software applications and create e-books for the beneficiaries who register with the system. This study aimed to investigate the determinants of e-book usage by Undergraduates in the Faculty of Commerce and Management Studies, University of Kelaniya. Three hundred thirty-five undergraduates from the Faculty of Commerce and Management Studies, University of Kelaniya, were used as the sample. Data were collected through a standard questionnaire distributed via a google form. Version 23.0 of the Statistical Package for Social Sciences (SPSS) was used to analyze the data. The mean score and standard deviation for each variable were utilized for univariate analysis, and the correlation coefficient was employed for bivariate analysis. The regression and Sobel tests were used to test the hypotheses. The results revealed a significant impact of Perceived Ease of Use and Perceived Usefulness on E-book usage that has been significantly mediated by Behavioural Intention to Use. These findings have consequences for educators and instructional methodologists, who must balance the benefits of new learning technology with the realities of student perceptions and use.
Evaluation of a training course for general practitioners within the melanoma multimedia education program of the Italian melanoma intergroup: study protocol
Authors: Stanganelli Ignazio , Magi Serena , Bucchi Lauro , Crocetti Emanuele , Mancini Silvia , Vattiato Rosa , Falcinelli Stefano , Re Patrizia , Melandri Davide , Brusasco Marco , Gandini Sara , Falcini Fabio , Zamagni Federica , Working Group FAD MelaMEd
Published: February 2024

The text discusses the role of general practitioners (GPs) in the prevention and early diagnosis of melanoma, a type of skin cancer. It highlights the need for GPs to be able to recognize suspicious skin lesions and refer patients to specialist dermatology centers. However, many GPs lack comprehensive training in diagnosing melanoma. The text mentions that various training courses have been conducted for GPs, but their impact on clinical practice has been limited. The "MelaMEd Programme" is an e-learning course developed by the Italian Melanoma Intergroup (IMI). The program aims to provide GPs with comprehensive knowledge of melanoma prevention, diagnosis, and treatment. It includes an e-learning section and a dedicated platform called MelaMEd platform, which offers a multimedia atlas of melanoma. The objective of the study is to evaluate the impact of the MelaMEd programme on GPs' diagnostic accuracy, knowledge of melanoma, and management of suspicious lesions. The methodology involves administering pre-training and post-training questionnaires to participants, assessing their diagnostic skills and evaluating the training course's effectiveness. The study aims to demonstrate the effectiveness of the MelaMEd programme in improving GPs' ability to recognize and manage melanoma. It also seeks to identify areas for improvement and recommend interventions to enhance diagnostic accuracy. The results will be analyzed statistically using descriptive, univariate, and multivariate analysis methods.
Trojan War and epic cycle: the historical and literary version where, how, when and why the Trojan War myth was invented
Authors: Konstantinopoulos Vasileios L.
Published: February 2024

There are two aspects about the Trojan War, the historical and the literary. For 1200 BC, the Late Bronze Age there are two epigraphical testimonies, the Hettite inscriptions and the Linear B tablets. Due to the fact that the latter do not contain historical information, only the Hettitic inscriptions remain, which provide us with very important historical information about the relationships between the Hittite empire, the kingdom of Troy and the kingdom of Ahhijawa. An important contribution to the historical reality is also offered by the excavations of the professor Manfred Korfmann (University of Tübingen) that brought to light the lower city with a moat. So the city is a typical Eastern city with Appaliuna (=Apollo) as one of the main gods. The Treaty of Alaksandu, king of Troy, and Muwatalli, king of Hattussa, and other Hittite documents confirm that Troy was a vassal of the Hittite empire and thus under its protection. Therefore, in the 13th century BC the Trojan War could not have taken place, as the Achaeans would have faced the powerful Hittite force. In the 12th century the Achaeans were not in a position to campaign, because the Mycenaean centres had collapsed. So, the Trojan War is a literary and not a historical event. Thus, the Epic Cycle is examined with the various works and more specifically the Iliad and the Odyssey, their grammar, their structure, the editing of the text during the Alexandrian age and the famous Homeric question.
The artistic complexity of the Antikythera Mechanism: a comprehensive tutorial
Authors: Efstathiou Kyriakos , Efstathiou Marianna , Basiakoulis Alexandros
Published: February 2024

Recovered in 1901, from a first-century BC shipwreck, the Antikythera Mechanism is considered to be the oldest extant complex geared device. It was constructed in ~150 BCE and was essentially an analog computer, an astronomical and calendrical device, designed to predict astronomical phenomena, such as lunar and solar eclipses, to maintain calendar accuracy and to predict the dates of Panhellenic Games. The device was operated manually by a user, setting a date in a dial. All necessary calculations were made using a set of gears (at least 39), while the results were displayed on several scientific scales. The Mechanism’s miniature size, the elaborate gear trains, the use of eccentrical gears and the employment of a pin–and–slot gear system to calculate the anomalous orbit of the Moon, demonstrate that the Greek mechanicians of the Hellenistic period had become far more skillful in designing geared devices than the surviving written sources imply. Geared devices matching the complexity of the Antikythera Mechanism would not appear again in Europe until the mechanical clocks of the thirteenth century. The aim of this paper is to present this ancient elaborate device in the most comprehensible way.
Disasters and climatic phenomena today and in the past
Authors: Liritzis Ioannis
Published: February 2024

The current interest and frenzy discussion and attribution of all the evils in climate change, the climate crisis, has led to skepticism about its right research direction, as well as its management and priority implementation actions, extended to its impacted effects on humans, the environment, and the economy. Rather than being the result of a simple mistake, an adequate dispute is based on diversity. I argue that many aspects of the scientific and ethical debate on climate change can be usefully viewed from a different more human-environment-centered perspective. This opinion article presents the topic recalling the historical past and discussing the current opinions and policy orientations followed by scientists, and decision-making centers. Emphasis is given to the prioritized sectors for mitigating the currently undesirable effects, in parallel to re-orientation and breakdown of research on the contemporary causes of climatic change from the non-human interventions.
An Enlightened Common Sense Approach to Environmental Education, with Special Reference to Climate Change
Authors: Price Leigh
Published: February 2024

This article argues that, in order for humanity to act timeously to ameliorate threats such as climate change, we would do well to heed the central tenets of Roy Bhaskar’s transcendental realism, which he also calls enlightened common sense. This is because transcendental realism is critical of the unnecessarily burdensome assumption allied with systems/complexity theory that statistical analyses and complex computer models are necessary and suffi cient to deal with complex systems such as climate. To the contrary, from the perspective of transcendental realism, it is knowing ‘how things work’ – being enlightened – that is necessary, and often sufficient, to deal with complex systems. For example, in terms of climate change, knowing how the Greenhouse Eff ect works – that is, knowing how extra carbon dioxide in the atmosphere heats the Earth – makes it as simple to decide to act to reduce carbon dioxide as knowing how gravity works makes it simple to decide not to step off a high-rise building. This does not detract from the further need to (preferably democratically) consider diff erent action options, for which computer models can be a helpful tool. Transcendental realism also has implications for how environmental educators define climate and climate change and it provides an antidote to certain challenges posed by climate change deniers. Much of the critique applied in this article to systems/complexity theory can also be applied to posthumanism.

Keywords: climate change education, Roy Bhaskar, climate scepticism, complex systems, posthumanism
El estadio del espejo: antecedentes y fenomenología
Authors: García-Arroyo José Manuel
Published: February 2024

Resumen: En este trabajo dedicado al estadio del espejo de Lacan, se exponen los antecedentes y luego se analizan los complejos fenómenos que se producen durante el mismo. Aunque el autor presenta su teoría a la comunidad científica en 1936, existían precedentes que provenían de la biología, la etología, la psicología, la filosofía e incluso la cultura de la época. Lacan realiza una síntesis admirable entre ellos y aporta al psicoanálisis contenidos de otras disciplinas, lo cual resulta completamente novedoso. El estadio del espejo muestra cómo el niño va a pasar por una serie de experiencias constituyentes cuando se enfrenta a su reflejo especular, anticipando la unidad corporal de la que carece. La imagen se convierte en la matriz del ego, que, a partir de entonces, va a mostrar un destino enajenado e ilusorio. El cuerpo es el protagonista de este proceso, ya que, en este momento fundacional, es cuando el niño resuelve el grave problema de la “fragmentación corporal” para alcanzar una imagen de "totalidad".
El encuadre “corredor terapéutico” en psicoterapia grupal operativa: revisión del concepto y hallazgos
Authors: García-Bardón Victoria de Felipe , Vázquez-Ramo Elena
Published: February 2024

Resumen: La excesiva y compleja demanda de los Servicios de Salud Mental hace necesarios encuadres terapéuticos específicos y adaptados. En los años ochenta Bauleo diseña el encuadre corredor terapéutico. El presente trabajo aborda una revisión de este concepto y los resultados de su implementación en el Hospital Universitario de Guadalajara desde el año 2012 a la actualidad. Se concluye que el corredor terapéutico sigue siendo válido en el contexto actual de la asistencia pública de la salud mental. En las investigaciones que hemos realizado comprobamos (entre otros resultados) que mediante este encuadre podemos atender adecuadamente a los pacientes que demandan psicoterapia en diferentes dispositivos grupales. Además, desde la sesión número 12 la percepción que tienen los pacientes de que la psicoterapia grupal es de ayuda y eficaz es elevada, y conforme avanza el proceso terapéutico los pacientes valoran como más eficaces factores que implican mayor cambio psicológico (evaluado a través de la Escala de Funcionamiento Grupal EFG-25 de Zukerfeld).
O negatywnych skutkach pandemii COVID-19 i wojny dla piśmiennictwa historyczno-medycznego (analiza przypadku rozważań Renaty Elżbiety Paligi na temat dżumy w epoce stanisławowskiej)
Authors: Srogosz Tadeusz
Published: February 2024

On the adverse effects of the coronavirus pandemic and war on writing the history of medicine (on the example of Renata Elżbieta Paliga’s refl ections on the plague in the era of Stanislaw August Poniatowski) Renata Elżbieta Paliga’s book is a negative example of writing in the history of medicine, written under the infl uence of the coronavirus pandemic and the war. It was written in a hurry, on the wave of current epidemiological and military events, without a painstaking search for sources. Its author summarised Tadeusz Srogosz fi ndings, sometimes only indirectly using other bibliographical sources. The interpretations contained in the book are either logically fl awed or outright false.
Upper semicontinuity of the attractor for a nonlinear hyperbolic-parabolic coupled system with fractional Laplacian
Authors: Santos Manoel J. Dos , Lobato Renato F. C.
Published: February 2024

In this paper we establish the existence and uniqueness of global solutions
(in time), as well as the existence, regularity and stability (upper
semicontinuity) of the attractor for the semigroup generated by the solutions
of a two-dimensional nonlinear hyperbolic-parabolic coupled system with
fractional Laplacian. In addition, we also obtain the existence of an
exponential attractor and show that this attractor has a finite fractal
dimension in a space containing the phase space of the dynamical system.
Sigma model instantons and singular tau function
Authors: Antonov E. N. , Orlov A. Yu.
Published: February 2024

The generating series for the instanton contribution to Green functions of
the $2D$ sigma model was found in the works of Schwarz, Fateev and Frolov. We
show that this series can be written as a formal tau function of the two-sided
two-component KP hierarchy. We call it formal singular tau function because
this tau function is a sum where each term is the infrared and ultraviolet
divergent one exactly as the series found by the mentioned authors. However one
can regularize this singluar tau function and to obtain regular observables.
This is because observables contains ratious of mentioned divergent
expressions. Thus, we enladge the families of tau functions to work with.
The Influence of Work Ethic and Organizational Culture on Employee Performance at PT XYZ
Authors: Adilinga Edhu Enriadis
Published: February 2024

Human resources play an important role in achieving organizational or company goals. Rapid changes in the business environment and full of uncertainty make companies strive to produce high-performance employees. At PT XYZ throughout 2020-2022, there was a decrease in employee performance. The decline in performance is influenced by various factors, one of which is the internal factor of employees in the form of work ethic. In addition to work ethic, organizational culture factors also affect employee performance. This study aims to find out how about work ethic, organizational culture and performance at PT. XYZ Bandung, and how much influence work ethic and organizational culture have on employee performance at PT. XYZ Bandung either partially or simultaneously. The type of research used is quantitative, causal relationship with descriptive and verifiative approaches. The sample in this study was 139 respondents. Data collection techniques through the distribution of questionnaires, and data analysis using PLS structural equation modeling (SEM). The results showed that the work ethic of PT XYZ employees resulted in an average of 562.8 (81%) being in the high category. The organizational culture of PT XYZ resulted in an average of 530.8 (76.4%) being in the strong category. Hypothesis testing shows that partially and simultaneously work ethic and organizational culture have a significant effect on the performance of PT XYZ employees. The amount of influence of work ethic and organizational culture on employee performance is 0.588 or 58.8%. The results of the study provide an overview of the condition of PT XYZ Company. And the results of this research will provide a foundation in employee development at PT XYZ to be able to improve employee performance
ANALYSIS OF THE EFFECT OF CASH TURNOVER, INVENTORY TURNOVER, AND RECEIVABLES TURNOVER ON PROFITABILITY IN MANUFACTURING COMPANIES LISTED ON THE IDX FOR THE 2019-2021 PERIOD
Authors: Alkobar Zhalma Syafitri , Karyatun Subur , Digdowiseiso Kumba , Anang Zuraini
Published: February 2024

This study aims to find out and analyze whether there is a significant effect of cash turnover, inventory turnover, and accounts receivable turnover on the profitability of manufacturing companies listed on the IDX for the 2019-2021 period. The data used in this study is secondary data, namely the financial reports of manufacturing companies listed on the IDX for the 2019-2021 period. The type of data in this study is quantitative using panel data. The population of this study includes 46 manufacturing companies listed on the IDX for the 2019-2021 period. The sample used is 35 samples. The data analysis used in this study is the model feasibility test method, descriptive analysis, classic assumption test, multiple regression test, and hypothesis testing with panel data using Eviews 10 software. The results showed that the cash turnover variable had no effect on profitability, inventory turnover had a positive and significant effect on profitability, and accounts receivable turnover had a positive and significant effect on profitability.
Camex- câmara de comércio exterior
Authors: Uliam Fellipe Oliveira
Published: February 2024

O presente trabalho aborda como tema central a Câmara de Comercio Exterior, bem como as relações comerciais por ela alcançadas e seus órgãos de deliberação.
Perfil epidemiológico da Leishmaniose Tegumentar Americana no Maranhão no período de 2014 a 2017
Authors: Machado Rogério Almeida , Dionezio Leandro Daniel , Da Cunha Bruna Sousa , Sodré Samara Bianca , Pereira Luís Fernando Bastos , Paz Jefferson de Lima , Silva José Lucas Lima , De Sales Paulo Ricardo Cruz
Published: February 2024

A leishmaniose tegumentar americana (LTA) é uma doença infecciosa caracterizada pelo comprometimento cutâneo, mucoso e em raras situações, linfonodal3. Elas    são um grupo de doenças causadas por protozoários parasitas de mais de 20 espécies de Leishmania. De acordo com dados da Organização Mundial da Saúde (OMS), 2017 o Brasil está entre os países que registraram mais de 90% dos casos de Leishmaniose Tegumentar Americana (LTA) em sua forma cutânea e mucosa2. No Brasil já foram identificadas sete espécies de leishmanioses que causam doenças em humanos e no Maranhão as espécies que predominam são: Leishmania brasiliensis e a Leishmania amazonensis.