bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring the Influence of Software Evolution on Mobile App Accessibility: Insights from User Reviews
Authors: Oliveira Alberto Dumont Alves , Santos Paulo Sergio Henrique dos , Aljedaani Wajdi , Eler Marcelo Medeiros
Published: November 2024

Software systems constantly evolve to accommodate stakeholders' and environments' requirements that change over time. In this process, the frequent modifications can increase software complexity and negatively impact its global quality when conducted in an unstructured way. The evolutive nature of mobile environments led researchers to investigate how mobile app evolution impacts complexity, security, resource consumption, maintainability, usability, and accessibility. In particular, there has been limited research on the impact of app updates on mobile accessibility: most studies focused on tracking the number of accessibility violations found by automated tools across successive versions of a small set of applications. In a previous work, we made a contribution to this field by identifying accessibility reviews associated with app updates and prompting ChatGPT-4 to provide an overview of the main accessibility issues and enhancements perceived by users in the new releases of a mobile app. In this manuscript, we extend our previous work by adopting manual content analysis to delve deeper into our research questions and by adding new research questions associated with the identification of reviews linked to app updates, user characteristics, WCAG principles and guidelines, and user demands reported in accessibility reviews. Our results show that the accessibility barriers reported by users are mostly linked to the WCAG 2.2 Perceivable principle, and the Distinguishable and Adaptable guidelines, which includes poor color scheme, small font size, unlabeled elements, and lack of customization options. Accordingly, the consequences of the lack of accessibility is mainly connected to the difficult users experience to perceive elements of the interface (e.g. difficult to read and distinguish content, watch videos) and to use screen readers, in addition to feel discriminated against. The most common demand developers and organizations receive is to bring back some accessible feature or to fix accessibility bugs.
Gemeinsam gestalten: Soziale Arbeit und bürgerschaftliches Engagement
Authors: Hartnuß Birger
Published: November 2024

Bürgerschaftliches Engagement ist die Basis unseres demokratischen Gemeinwesens. Es spielt eine entscheidende Rolle bei der Bewältigung aktueller gesellschaftlicher Herausforderungen, z. B. der Gestaltung des demografischen Wandels, dem Umbau sozialstaatlicher Institutionen oder der Reform des Gesundheits- und Bildungswesens. Bürgerschaftliches Engagement zu fördern und gezielt in sozialen Einrichtungen und Diensten einzubinden ist daher auch im Kontext professioneller Sozialer Arbeit unabdingbar. Hierfür benötigen die Profis der Sozialen Arbeit das nötige Rüstzeug: theoretisches und empirisches Grundlagenwissen, Handlungsstrategien sowie Methoden und Instrumente wirksamer Engagementförderung. Wie kann bürgerschaftliches Engagement die Soziale Arbeit effektiv ergänzen und bereichern? Welche engagementpolitischen Strukturen und Bedarfe gibt es? Wie lassen sich Methoden und Strategien moderner Engagementförderung praktisch umsetzen? Wo liegen Konfliktpotenziale der Zusammenarbeit und wie können sie bearbeitet werden? Das Handbuch widmet sich diesen Fragen und bietet eine Einführung in die Zivilgesellschaft, das bürgerschaftliche Engagement sowie seine Bedeutung für die Soziale Arbeit. Es unterstreicht die Bedeutung einer gelingenden Kooperation von Haupt- und Ehrenamt, vermittelt praxisorientierte Ansätze des strategischen Freiwilligenmanagements und ermutigt soziale Einrichtungen und Dienste dazu, sich für die bürgerschaftliche Mitwirkung zu öffnen. Wissenschaftlich fundiert und handlungsorientiert aufbereitet ist das Handbuch ideal geeignet für das Studium und die Weiterbildung von Sozialarbeiterinnen und -arbeitern, Sozialpädagoginnen und -pädagogen sowie Sozialmanagerinnen und -managern.
Betriebliche Gesundheitsförderung in der stationären Pflege
Authors: Lange Ariane
Published: November 2024

Pflegekräfte sind in ihrem Arbeitsalltag hohen körperlichen und psychischen Belastungen ausgesetzt. Insbesondere das Arbeiten im Schichtdienst kann zu gesundheitlichen Beeinträchtigungen führen, die sich letztendlich auch auf die Qualität der Pflege und damit das gesamte Gesundheitssystem negativ auswirken. Der demografische Wandel macht sich für das Pflegepersonal gleich mehrfach bemerkbar: Zum einen müssen vermehrt polymorbide, alternde und oft auch demente Patienten versorgt werden. Zum anderen fehlt in der Pflege junger qualifizierter Nachwuchs. Das Durchschnittsalter des Pflegepersonals steigt, hinzu kommt oft eine hohe Mitarbeiterfluktuation. Betriebliche Gesundheitsförderung ist daher vor allem für Einrichtungen des Gesundheitswesens unerlässlich. Die Autorin entwirft hier erstmals ein ganzheitliches und praxistaugliches Modell zur Gesundheitsförderung speziell im Krankenhaus, das Pflegekräfte aktiv einbindet und den besonderen Anforderungen von Nacht- und Schichtarbeit gerecht wird. Das Modell „Gesund und fit im Schichtbetrieb“ besteht aus eintägigen Seminaren, ärztlichen Gesundheits-Check-ups und individuellen Beratungen und setzt an den besonders sensiblen Aspekten Schlaf, Ernährung, Bewegung und Stressbewältigung an. Es ermöglicht eine intensive Reflexion des eigenen Gesundheitsverhaltens mit dem Ziel, die Eigenverantwortung der Mitarbeiter zu stärken. Hier finden Leitende und Pflegende wertvolle Impulse für die Etablierung einer neuen Gesundheitskultur im Krankenhaus.
A Case of Severe Erythroderma in a Patient with Pustular Psoriasis
Authors: Berko Joshua , Raps Christine , Cacic Quinlan , Stephen Robert , Fix Megan , Beaulieu Allison
Published: November 2024

Case Presentation: A patient with a known history of pustular psoriasis presented with sub-acute development of diffuse erythema and scaling of the skin with areas of exfoliation consistent with erythroderma. She was ill appearing and required admission and aggressive treatment with steroid-impregnated wet dressings, topical emollients, analgesics and systemic immunosuppressants. Discussion: Erythroderma is a dermatologic emergency characterized by diffuse erythema and scaling spanning >90% of skin surfaces and is associated with a mortality rate as high as 64%. It is initially a clinical diagnosis and needs to be recognized and aggressively treated expeditiously to improve chances of a good outcome.
The Effect of Fordyce Happiness Training on Life Expectancy and Quality of Life in Hemodialysis Patients: An Intervention Study in Yazd, Iran
Authors: Fallah Bahare , Baghian Najmeh , Mehrabbeik Akram , Karimi Zarchi Mehdi , Nazmiah Hossin , Hajimaghsoudi Majid , Dehghani Mohammad Hossein
Published: November 2024

Background: Dialysis patients frequently experience issues such as fear, reduced social activity, and hopelessness due to lifestyle changes and treatment requirements. Objectives: This study aimed to determine the effect of Fordyce happiness training on quality of life and life expectancy in hemodialysis patients. Methods: This quasi-experimental intervention study involved 48 hemodialysis patients who were referred to Shahid Rahnemoun Hospital in Yazd, Iran, and selected through simple random sampling. Data collection tools included the Quality-of-Life Questionnaire for Kidney Patients (KDQOL-36) and the Miller Life Examination Questionnaire. Patients participated in ten 60-minute training sessions, held twice weekly. Data were collected at baseline and one month after the intervention and analyzed using SPSS 21 software. Results: Following Fordyce's happiness training, levels of potassium (K), creatinine (Cr), and blood urea nitrogen (BUN) in patients significantly decreased. Before the intervention, the mean scores for quality of life and life expectancy in dialysis patients were 51.9 ±28.27 and 169.75 ±11.95, respectively, which increased to 64.66 ±27.17 and 179.95 ±9.37 after the intervention. Paired t-test results indicated that Fordyce happiness training had a statistically significant positive effect on patients' quality of life (P < 0.05) and life expectancy (P < 0.05). Conclusions: The Fordyce happiness training program can improve quality of life and life expectancy in dialysis patients. In other words, happiness training may serve as a preventive strategy against mental disorders such as depression, anxiety, and life dissatisfaction in dialysis patients.
The Voice of the Family of Schizophrenic Patients in the Continuum of Patient Care: A Qualitative Study
Authors: Hasanpour Maryam , Poortaghi Sarieh , Zare Zahra , Yahyavi Seyyed Taha , Shahsavari Hooman
Published: November 2024

Background: Mental disorders, particularly schizophrenia, present significant challenges in modern medical and psychological sciences. Addressing these disorders effectively requires not only technical expertise but also continuous, strong family support. Despite the crucial role of familial support in maintaining treatment continuity for individuals with schizophrenia, this area faces numerous challenges that demand in-depth examination and strategic intervention. Objectives: This study explores the challenges involved in sustaining familial support for individuals with schizophrenia. Methods: This qualitative study employed content analysis and gathered data through semi-structured interviews with 20 families of individuals diagnosed with schizophrenia and healthcare professionals at Roozbeh Psychiatric Hospital in Tehran, Iran. Participants were selected through purposive sampling, and data analysis followed the conventional content analysis principles of Lundman and Graneheim. Results: The analysis identified four main categories: (1) the nature of the disease; (2) care burden; (3) cultural barriers; and (4) challenges within the healthcare system. Conclusions: Providing effective family support requires technical expertise in schizophrenia care, alongside ongoing policy measures aimed at addressing obstacles and enhancing familial involvement. These findings offer valuable insights for improving family support programs and mental health policies to better serve individuals with schizophrenia, thus contributing to overall community mental health.
The COVID-19 Pandemic and the Resilience of the Pharmaceutical Supply Chain: Lessons from Past Experiences and Strategies for the Future
Authors: Aivazi Mohamad Ali , Rasekh Hamid Reza , Peikanpour Mohammad , Peiravian Farzad , Esmaeili Sajjad , Zarei Leila
Published: November 2024

Background: The pharmaceutical supply chain (PSC) faced numerous challenges, particularly during the COVID-19 crisis. Due to the supply chain (SC) 's vulnerabilities, it requires enhanced capabilities to address these challenges. In Iran, specific economic and political issues have intensified the vulnerabilities of the PSC. Objectives: This study investigates the issues caused by the COVID-19 crisis in the PSC, identifies and characterizes these issues, and recommends appropriate courses of action to address future SC disruptions. Methods: This study is a qualitative-quantitative analysis conducted in Iran during the COVID-19 crisis. Qualitative thematic analysis was performed from July 2022 until May 2023. Semi-structured, in-depth, face-to-face interviews with 23 Iranian PSC specialists were conducted until saturation was reached. The qualitative phase was analyzed using MAXQDA 2021. The quantitative phase included a survey of 547 individuals working in pharmaceutical manufacturing in Iran, with the questionnaires analyzed using SPSS 26. Results: In the qualitative phase, the research identified two main themes: (1) vulnerabilities and (2) capabilities, along with 15 subthemes providing solutions to enhance the resilience of the PSC. In the quantitative phase, findings from 64 questionnaires highlighted major vulnerabilities and capabilities necessary to create a resilient SC. The median score for vulnerabilities was 5.12, while the median score for capabilities was 5.39. Conclusions: According to the questionnaire results, the quantitative findings indicate that capabilities received a higher score, suggesting that this sector of the PSC demonstrated better resilience against the pandemic. This study, with its contextual focus, mixed-method approach, comprehensive analysis of vulnerabilities and capabilities, and sector-specific insights, offers a novel contribution to the understanding of SC resilience within Iranian pharmaceutical manufacturing. It also has the potential to promote further research in other sectors of the PSC.
المرجعية الدينية الشيعية وموقفها من القضية الفلسطينية ( 1936-2023 )
Authors: قاسم شعيب السلطاني
Published: November 2024

تناولت في هذا البحث موضوع موقف المرجعية الدينية الشيعية في العراق من القضية الفلسطينية منذ بدايتها في ثلاثينيات القرن الماضي مرورا بأهم احداثها وتحولاتها في النصف الثاني من القرن العشرين وصولا الى الاحداث الحالية التي شهدها قطاع غزة عام 2023 ، اذ كان للمرجعية الدينية موقفاً ثابتاً في دعم استقلال الشعب الفلسطيني ودعم نضاله في مقاومة المحتلين وعلى اختلاف المراجع الذين تناوبوا على التصدي للمرجعية والذين اعلنوا الجهاد ضد المحتلين وتقديم كافة المساعدات المتاحة للفلسطينيين بما يضمن تحقيق هدفهم وتحررهم . ان الاشكالية التي يطرحها البحث هي " هل كان موقف المرجعية الدينية الشيعية من القضية الفلسطينية موقف ثابت نابع من دوافع دينية وإنسانية، اما كان خاضعاً وتابعة للمواقف السياسية التي تبنتا الانظمة الحاكمة " . اعتمدنا على المنهج التاريخي في كتابة البحث مع المنهج التحليلي عندما تقتضي الضرورة العلمية ، مع الاشارة الى وجود عدد من الادبيات التي ناقشت اجزاء من الموضوع دون الولوج للفترة الحالية والتي ميزت هذا البحث . توصلنا في هذا البحث الى مجموعة من الاستنتاجات منها ان موقف المرجعية الدينية الشيعية هو موقف عقائدي ديني ثابت من القضية الفلسطينية لا يتأثر بالسلطة او الاحداث ، وهذا ما اثبته المواقف الثابتة للمرجعية من احداث فلسطين على مدى قرن من الزمان ، اذ اعلنت المرجعية الجهاد و حللت اعطاء الخمس والزكاة للمجاهدين الفلسطينيين ، بل واستخدمت سلطتها الروحية لدعم الشعب الفلسطيني من خلال قرارات الحكومة العراقية الحالية .
«ЗБИРАННЯ» ГЕТЬМАНОМ КИРИЛОМ РОЗУМОВСЬКИМ РАНГОВИХ МАЄТНОСТЕЙ ГАДЯЦЬКОГО ЗАМКУ В ГРУНСЬКІЙ СОТНІ ГАДЯЦЬКОГО ПОЛКУ
Authors: Петренко Ірина , Сірий Олександр , Боєчко Владислав
Published: November 2024

Метою студії є дослідження господарської діяльності гетьмана Кирила Розумовського, зокрема повернення до своїх рангових володінь маєтностей, що були незаконно роздані «антецессорами» та захоплені різного чина та звання людьми на прикладі: «привертання ґрунтів» до Гадяцьких володінь гетьмана, якими незаконно користувалися «духовні та мирські люди різного звання» Грунської сотні, та секуляризація майна Пустинно-Скельського Спасо-Преображенського чоловічого монастиря у вигляді повернення до володінь Гадяцького замку посполитих села Павловочки Грунської сотні.   Методологічну основу дослідження становлять принципи історизму, об’єктивності та системності. Робота підготовлена на основі антропологічного підходу. Під час написання застосовані проблемно-хронологічний, історико-генетичний, аналітичний методи.   Новизна дослідження: у результаті пошуку з’ясовувалася господарсько-економічна діяльність гетьмана Кирила Розумовського в одному зі своїх рангових володінь – Гадяцькому замку – та роль при цьому гетьманської домової Економічної канцелярії. На прикладі виселення жителів Грунської сотні Гадяцького полку з їхніх осель, зведених на землях, що були власністю Гадяцького замку, та відбирання з-під володіння Пустинно-Скельського Спасо-Преображенського чоловічого монастиря посполитих с. Павловочки Грунської сотні показано прагнення гетьмана Кирила Розумовського до особистого збагачення як царського вельможі й магната. Дослідження виявило незвичайне, як для українського гетьмана, відношення Розумовського до «чорного» духовенства, що, на відміну від «антецесорів», не затвердив право Скельського монастиря на посполитих села Павловочки, а навпаки відібрав їх з-під володіння монастирського до рангової своєї маєтності – Гадяцького замку. Це все допомагає скласти ще більшу уяву про життя та економічно-господарську діяльність різних верств населення краю в середині XVIII ст.   Висновок: поряд із тим позитивним, що було під час гетьманування Кирила Розумовського для розвитку України, проявлялися і негативні його риси – прагнення до збагачення, безпринципність, незнання глибинного життя народу та його прагнень, що диктувалося тодішньою імперською політикою Росії. У дослідженні показано соціальне розшарування в суспільстві, яке з часом тільки збільшувалося. Підтекстом проходить тема про захист простого козацтва з боку козацької старшини від свавілля імперських чиновників – на прикладі дій Грунської сотенної канцелярії та Генеральної військової канцелярії – на противагу домовій гетьманській Економічній канцелярії на чолі зі статс-міністром Григорієм Тепловим – сірим кардиналом гетьманства Розумовського.
КНИЖКОВИЙ СПАДОК РОДИН РОЗУМОВСЬКИХ ТА РЄПНІНИХ: АРХІВНИЙ АНАЛІЗ
Authors: Нікітіна Анастасія
Published: November 2024

У статті проаналізовано історію приватної бібліотеки родин Розумовських і Рєпніних, яка була однією з найбільших в Україні протягом XVIII–XIX ст. Аналіз здійснено на основі оригінального документа, що вперше буде введено в науковий обіг.   Мета публікації: наукова реконструкція родової бібліотеки родин Розумовських та Рєпніних.   Висновки: дослідження родової бібліотеки може допомогти історикам висвітлити унікальну інформацію, яка не міститься в інших історичних джерелах. Дослідження приватної бібліотеки родин Розумовських і Рєпніних, яка розміщувалася на території Лівобережної України в м. Яготині стане цінним джерелом у книгознавчих і бібліотекознавчих студіях.
Kekerasan Seksual Terhadap Siswa SD Di Kota Cirebon dalam Perspektif Kriminologi
Authors: Syabil Lubna Bayna , Hidayat Rizka , Mawardi M Rizky Aditya , Sanusi Sanusi , Henda Rd.
Published: November 2024

Dalam dunia pendidikan, seorang guru mempunyai peranan yang penting untuk dapat membimbing dan menjadi tauladan bagi siswanya, namun realitanya masih ada guru yang melakukan perbuatan yang tidak senonoh pada siswanya. Perbuatan tersebut dapat dikenakan sanksi pidana berdasarkan Undang- undang No.12 tahun 2022 tentang Tindak Pidana kekerasan seksual. Penelitian ini bertujuan untuk mengetahui bagaimana faktor penyebab pelaku melakukan tindakan kekerasan seksual pada siswanya dan reaksi Masyarakat tentang tindakan tersebut. Metode penelitian yang digunakan yaitu  pendekatan kriminologi dengan melakukan wawancara dan menyebarkan kuesioner. Hasil penelitian menyatakan bahwa faktor penyebab guru melakukan tindakan tersebut yaitu faktor psikologisda faktor ekonomi serta reaksi dari kalangan mahasiswa, orang tua siswa, dan guru mengingingkan agar guru yang melakukan tindakan tersebut dapat dikeluarkan dari sekolah atau di pindahtugaskan sebagai sanksi sosial, serta dikenakan sanksi pidana.
REAL-VALUED DAMPED SINUSOID PARAMETER ESTIMATION USING A THREE-POINT INTERPOLATED DISCRETE FOURIER TRANSFORM ALGORITHM
Authors: BELEGA DANIEL , PETRI DARIO
Published: November 2024

This paper proposes new real-valued damped sinusoid frequency and damping factor estimators. They exploit a three-point Interpolated discrete Fourier transform (IpDFT) algorithm based on the Rife-Vincent class I (RVCI) windows and complex-valued DFT samples. The accuracies of the proposed estimators are compared with those provided by other state-of-the-art interpolated Fourier algorithms using computer simulations when pure, noisy, and noisy and harmonically distorted damped sinusoids are analyzed.
IMPLEMENTATION OF VIENNA RECTIFIER WITH SLIDING MODE CONTROL FOR ELECTRIC VEHICLE CHARGING STATIONS
Authors: KOODALSAMY BANUMALAR , NARAYANASWAMY VANAJA , KRISHNAMOORTHY KARTHIKEYAN , ANANTHAN BHUVANESH
Published: November 2024

This work recommends using an electric vehicle (EV) charging station employing a Vienna rectifier (VR) with sliding mode control. The Vienna rectifier is preferred for high-power applications due to its reduced harmonic distortion and improved power factor correction. Sliding mode control is used to regulate the rectifier's output voltage and current, allowing for reliable and efficient charging of EVs. The suggested system is modeled, and the simulation outcomes are presented to demonstrate the value of the recommended approach concerning stability, strength, and unexpected responsiveness. The proposed technology is expected to contribute to developing more dependable and effective EV charging stations.
SOFTWARE COST EFFORT AND TIME ESTIMATION USING DRAGONFLY WHALE LION OPTIMIZED DEEP NEURAL NETWORK
Authors: SAMYA SUMITHRA ALAGAR , NAGARAJAN VIJAYALAKSHMI , APPATHURAI AHILAN , SUNIRAM SALINDA EVELINE
Published: November 2024

Effective software development depends on the exact estimation of effort, time, cost, and customer satisfaction. Software project management requires an accurate evaluation of software development's effort, time, and cost, often underestimated or overestimated. So far, methodology has yet to accurately and reliably estimate the cost of software development. To overcome this issue, this paper proposed a constructive rapid application development model based on software cost effort and time estimation approach (CORADMO-based CETA) for accurate software cost estimation. The data requirements, cost drivers, constraints, and priorities are given as input to the fuzzy inference system (FIS). The processed output, such as effort, time, and cost for the nominal plan, shortest schedule plan, and least cost plan, is computed in the FIS. To reduce the effort, time, and cost, the output is optimized by dragonfly whale lion optimization (DWLO), which provides the best-estimated effort, time, and cost as an output for software development. The proposed CORADMO-based CETA model is tested in the NASA 93 dataset using MATLAB. The performance of the CORADMO-based CETA method is measured in terms of Pred (25 %), magnitude of relative error, and mean magnitude of relative error, attaining the values of 80.72 %, 87.94 %, and 98.13 %, respectively. Finally, the CORADMO-based CETA model justifies the suitability of dragonfly whale lion optimization with the proposed fuzzy logic.
A NEW HYBRID OPTIMIZATION METHOD USED IN PREDICTIVE CONTROL OF A NONLINEAR FRACTIONAL MODEL BASED ON FRACTIONAL HAMMERSTEIN STRUCTURE
Authors: CHOUAIBI DHOUHA , CHAGRA WASSILA
Published: November 2024

Fractional Hammerstein models represent various nonlinear processes, such as thermal and mechanical. Their major drawback is the non-convex optimization problem in a nonlinear model predictive control scheme due to its static nonlinearity. Indeed, an efficient optimization algorithm is needed. This work proposes a hybrid optimization algorithm combining the Nelder Mead optimization method and the Honey Badger one to synthesize a predictive control algorithm based on fractional Hammerstein models. As illustrated through simulation results, the proposed method offers clear improvements in convergence and tracking performances.
EFFECTIVE FEATURE EXTRACTION METHOD FOR UNCONSTRAINED ENVIRONMENT: LOCAL BINARY PATTERN OR LOCAL TERNARY PATTERN
Authors: KUMAR MUTHUSAMY RAJEEV , SUNDARAM RAMKUMAR , RENGASAMY MAGESWARAN , BALAKRISHNAN RAVICHANDRAN
Published: November 2024

In this study, a range of algorithms addressing the challenges posed by noise and illumination were investigated. Two algorithms, namely LTP and LBP, were selected for comparison due to their demonstrated effectiveness. The process becomes time-consuming due to training samples, mainly when dealing with images featuring higher levels of noise and illumination variations, necessitating efficient algorithms for effective recognition. To compare two effective feature extraction methods viz local binary pattern (LBP) and local ternary pattern (LTP) for an unconstraint environment. The impact of noise and illumination factors is particularly pronounced in the iris datasets of non-cooperative subjects, which serve as the input images for this analysis. These algorithms were applied to diverse datasets with distinctive illumination properties to facilitate feature extraction. The results indicated that the LTP exhibited efficiency in comparison, suggesting its efficacy in handling datasets with varying illumination characteristics. A comparative analysis between LBP and LTP was conducted on two distinct datasets, namely UBIRIS and CASIA. The investigation into the sensitivity of LTP revealed heightened sensitivity during the performance analysis test, with consistent accuracy observed at 50 samples and a scale of 0.3. In the case of the CASIA iris dataset, the recital of LTP and LBP exhibited nearly identical accuracy levels, converging after 70 samples for non-cooperative iris datasets compared to the LBP.
A NOVEL FAULT-TOLERANT GENERALIZED SYMMETRICAL TOPOLOGY FOR RENEWABLE ENERGY AND ELECTRIC VEHICLE APPLICATIONS
Authors: DUIRASAMY RAGUL , THIYAGARAJAN VENKATRAMAN
Published: November 2024

Multilevel inverters are a versatile and powerful technology for applications such as motor drives, high voltage direct current transmission (HVDC), renewable energy systems, and grid-connected applications. As the demand for high-quality, clean energy and low distortion continues to grow, multilevel inverters are preferred over traditional square wave inverters. This paper proposes a generalized 13-level symmetrical topology to meet the power quality requirements. It consists of six DC sources and twelve semiconductor devices. Further, the topology has cascaded to increase the number of levels, but the cost and circuit complexity increase with the number of units. The gate pulses for switches are produced by the nearest-level modulation technique. The performance comparison of the topology with recent literature provides comprehensive information about the novelty of the configuration. The MLI performance parameters are number of switches, number of gates driving circuits, total harmonic distortion (THD), cost function per level (CCPL), total standing voltage (TSV), and efficiency (η). MATLAB/Simulink investigates the proposed topology, and further, to validate its simulation output, the hardware prototype model has been implemented in the laboratory.
Phân tích tình hình sử dụng thuốc điều trị hen phế quản nội trú tại Bệnh viện Nhi đồng Thành phố
Authors: Nguyễn Thị Ngọc Yến Nguyễn Thị Ngọc Yến , Nguyễn Xuân Tiến Nguyễn Xuân Tiến , Lê Thị Tường Vi Lê Thị Tường Vi , Lê Thanh Chi Lê Thanh Chi , Phạm Cảnh Em Phạm Cảnh Em
Published: November 2024

Đặt vấn đề: Hen suyễn là một bệnh mãn tính phổ biến ở trẻ em và thanh thiếu niên hơn người lớn, đặc biệt là do bệnh khởi phát sớm và các triệu chứng đa dạng. Ngoài ra, hen suyễn cũng là nguyên nhân hàng đầu gây gánh nặng bệnh tật ở trẻ em. Mục tiêu: Nghiên cứu này nhằm đánh giá tình hình sử dụng thuốc trong hồ sơ bệnh án điều trị hen phế quản nội trú ở trẻ em. Phương pháp: Nghiên cứu này sử dụng phương pháp hồi cứu mô tả cắt ngang dựa trên 165 hồ sơ bệnh án. Kết quả: Bệnh nhi có tiền sử hen và điều trị hen trước khi nhập viện được ghi nhận tỷ lệ cao lần lượt là 39.4% và 36.4%. Phần lớn bệnh nhi còn tỉnh táo, có mức độ hen trung bình và được chỉ định các xét nghiệm chẩn đoán như SpO2, X - quang ngực, CRP và bạch cầu. Các triệu chứng như tức ngực, khò khè, khó thở và ho chiếm tỷ lệ lớn hơn 70%. Các loại thuốc chính thường sử dụng trong điều trị cắt cơn bao gồm đơn trị SABA và phối hợp SABA+Ipratropium (SABA+IP). Ngoài ra, liệu pháp phối hợp SABA+IP/SABA + ICS (budesonid) + corticosteroid (PO/IV) được sử dụng phổ biến trong điều trị duy trì với tỷ lệ 63.6%. Trong khi đó, bệnh nhi thường được kê đơn pMDI-FLU (39.4%) để dự phòng hen. Tỷ lệ sử dụng kháng sinh trong điều trị hen nội trú cao (60.6%) với các thuốc phổ biến như cefotaxim (36.4%) và amoxicillin/ acid clavulanic (18.2%) do tình trạng viêm thường xảy ra ở trẻ hen. Đặc biệt, tất cả bệnh nhi đều được kê đơn thuốc điều trị hen hợp lý về mức độ, liều và khoảng cách liều với kết quả điều trị tốt (đỡ - 87.9% và khỏi bệnh - 12.1%) và tỷ lệ tái nhập viện (<5 ngày) thấp (9.1%). Hơn nữa, một số yếu tố thể hiện mối liên quan với kết quả điều trị hen bao gồm giới tính, nhóm tuổi, thừa cân, mức độ hen, số ngày hỗ trợ oxy, rale ẩm, cắt cơn và bậc hen. Kết luận: SABA, kháng sinh và corticosteroid là những thuốc được sử dụng phổ biến nhất trong điều trị cắt cơn, duy trì và dự phòng ở bệnh nhi hen phế quản nội trú. Sau khi xuất viện, cần đánh giá toàn diện việc kiểm soát hen ở bệnh nhi có mức độ từ trung bình đến nặng.
20 Largest birds of Australia
Authors: Frey Erzsebet
Published: November 2024

Australia is home to a diverse range of bird species, with many of them being unique to the continent. The 20 largest birds in Australia are impressive and diverse, ranging from the flightless emu to the majestic wedge-tailed eagle. These birds play important roles in their respective ecosystems, and many of them are also culturally significant to Indigenous communities in Australia.
Animals that start with J
Authors: Frey Erzsebet
Published: November 2024

The topic of this blog post is animals that start with the letter “J”. It will provide a list of animals that start with J, as well as brief descriptions of each animal’s physical characteristics, habitat, diet, and interesting facts. The purpose of this article is to introduce readers to some of the fascinating and diverse creatures that exist in the animal kingdom, and to encourage them to continue learning about these amazing animals.
Diamond Python Facts
Authors: Frey Erzsebet
Published: November 2024

Diamond Python The Diamond Python (

Morelia spilota spilota

) is a species of non-venomous snake that is native to eastern Australia.
Les extensions dans Zotero 7
Authors:   Collectif
Published: November 2024

Le nouvel aspect et les nouvelles fonctionnalités de l’interface de la bibliothèque sont probablement les impacts les plus visibles introduits par Zotero 7. Le changement de technologie et la réécriture de l’application ont cependant occasionné d’autres changements bien plus importants. Elles ont notamment impliqué un travail d’adaptation conséquent pour les développeurs des extensions de Zotero telles que Better BibTex, ZotFile, etc.
How is biodiversity affected by climate change?
Authors: Frey Erzsebet
Published: November 2024

Biodiversity and Climate Change Biodiversity is the variety of all living organisms on Earth, from plants and animals to microorganisms. It is an essential part of our planet’s natural systems and provides numerous benefits such as food, medicine, and ecosystem services like pollination and soil health. However, biodiversity is under threat from various human activities, including climate change.
How do scientists study mammals?
Authors: Frey Erzsebet
Published: November 2024

Mammals are a diverse group of animals that share several common characteristics, including having hair or fur, being warm-blooded, and producing milk to nourish their young. Mammals also have specialized teeth for biting and chewing, and many have well-developed brains capable of complex behaviors and communication.
Do Bengal Tigers live in the rainforest?
Authors: Frey Erzsebet
Published: November 2024

Bengal tigers, also known as Indian tigers, are a subspecies of tigers found primarily in India, but also in Bangladesh, Bhutan, Nepal. They are one of the largest members of the cat family and are easily identified by their distinctive orange coat with black stripes. They are apex predators and play a crucial role in maintaining the ecological balance of their habitat.
Polar Bear vs Grizzly bear
Authors: Frey Erzsebet
Published: November 2024

Polar bears Polar bears are large carnivorous mammals that inhabit the Arctic regions of the world. They are well adapted to living in a cold and icy environment, with thick fur, a layer of insulating blubber, and large, webbed paws that allow them to swim and walk on snow and ice. Polar bears are apex predators, meaning they are at the top of the food chain in their ecosystem.
More than 50 FLYING SPIDER FACTS
Authors: Frey Erzsebet
Published: November 2024

General information about flying spiders Flying spiders are a type of arachnid that have gained a lot of attention due to their unusual ability to travel through the air. They belong to the family of spiders known as Araneidae and are found in different parts of the world, including North America, South America, Asia, and Africa.
Animals that start with E | E for Animal
Authors: Frey Erzsebet
Published: November 2024

List of Animals;ElephantEchidnaElkEastern Gray SquirrelEuropean HedgehogEthiopian WolfEmuEastern BluebirdEurasian Eagle-OwlEgyptian VultureEastern TowheeEurasian WrenEastern Diamondback RattlesnakeEastern Box TurtleEuropean Green LizardEmerald Tree BoaEgyptian CobraEastern Mud TurtleEuropean Fire-bellied ToadEastern Spadefoot ToadEastern NewtEuropean Tree FrogEmerald Glass FrogEungella Torrent FrogElectric EelEpaulette SharkEastern Hercules
Tailored copper doped indium sulfide nanostructures as electrode material for supercapacitor and nano photocatalyst for dye degradation
Authors: Mary K. Lilly , Geetha D. , Ramesh P.S.
Published: November 2024

The unique copper-doped indium sulfide nanocrystals are synthesized by a gentle hydrothermal process. XRD, FTIR, XPS, FESEM/EDX, UV-DRS, and PL were used to characterize the final samples. Copper-doped indium sulfide nanostructures can be exploited as an active catalyst in photodegradation and as an electroactive material in supercapacitors due to their distinctive architecture. The copper-doped indium sulfide catalyst exhibits 85 percent photodegradation using methylene blue dye under natural sunlight irradiation, and the electrochemical test showed a capacitance of 668 Fg−1 at 1 Ag−1 in a 2 M KOH electrolyte solution. For future generations, photocatalyst and electrode can function as more desirable materials.
A Channa punctatus (Fish)
Authors: Vishan Kumar  , Anand Pratap Singh
Published: November 2024

Channa punctatus is typically found 15.0 cm (5.9 in) long; however males up to 31.0 cm (12.2 in) have been captured. The IUCN classifies the spotted snakehead as Least Concern owing to the lack of serious threats to these species' populations. The species is mostly a carnivore. This species' favorite meal is the yolk flies and fish larvae of other tiny fish. It feeds on crustaceans, snails, insects, tiny fishes, semi-digested debris, and occasionally plants in its native environment. Its dietary habits alter with the seasons. During the spawning season, the intensity of eating in adult fishes is low. A juvenile fish's eating habits are constant.
Toleranciamento dimensional num ambiente de projecto axiomático
Authors: Navas Helena V. G. , Gonçalves-Coelho António M.
Published: November 2024

A especificação de tolerâncias num ambiente de projecto axiomático deve ter lugar em todas as fases do desenvolvimento do projecto, a começar no nível mais elevado da respectiva árvore hierárquica. As tolerâncias são menores nos projectos acoplados ou desacopláveis do que no  caso dos projectos desacoplados. Assim, os projectos acoplados ou desacopláveis são menos    robustos do que os projectos desacoplados. A construção e o cálculo de cadeias de cotas devem ser feitos após a selecção de uma solução desacoplada e com o conteúdo mínimo de informação.
Depósitos de regulación en cabecera de redes hidráulicas a presión
Authors: Pulido Calvo Inmaculada , Gutiérrez Estrada Juan Carlos , Roldán Cañas José , López Luque Rafael
Published: November 2024

La presencia de un depósito de regulación en un sistema de impulsión permite independizar los caudales bombeados de la variabilidad del uso del agua en la red de distribución. De este  modo el depósito se podrá utilizar, además de como acumulación del recurso agua, en la reducción de los costes energéticos al poder adaptar el esquema de operación de los grupos de bombeo al tipo de discriminación horaria de las tarifas eléctricas y al poder conseguir un funcionamiento más regular de las estaciones de bombeo en comparación con la impulsión directa a la red de distribución. En este trabajo, se propone una metodología para determinar  una capacidad de almacenamiento que permita elevar el agua en las horas con el coste energético más ventajoso y establecer una política de bombeo para el período anual de funcionamiento, de forma que se minimicen los costes totales del sistema de impulsión (coste de inversión del depósito y coste del consumo de energía eléctrica). Se aplica el modelo desarrollado a un sistema de impulsión de una zona regable con registros históricos de demanda horaria de agua. El volumen de regulación óptimo resulta ser el 41% de la demanda máxima diaria. El régimen de funcionamiento óptimo del bombeo al depósito durante la campaña de riegos supone el uso exclusivo de las horas bonificadas de tarifa eléctrica, y sólo es necesario el uso de algunas horas de coste medio en el período de máximas demandas de agua. La incorporación del depósito de regulación reduce en un 33% el coste del consumo de energía eléctrica y en un 12% el  coste total anual en comparación con el bombeo directo a la red hidráulica.
Comportamento elastoplástico cíclico e à fadiga da liga de alumínio 6061 – T651
Authors: Da Silva Ribeiro Alfredo , De Jesus Abílio M. P. , Fernandes António A.
Published: November 2024

A aplicação da Mecânica da Fractura, na previsão da vida à fadiga, pressupõe a presença de defeitos iniciais que actuam como fendas. A análise é efectuada de modo a estimar o número de ciclos necessário para o crescimento de um defeito inicial até este atingir uma dimensão crítica responsável pela ruína da estrutura. A vida passada na fase de iniciação das fendas não é considerada neste método, o que pode subestimar significativamente a vida real de uma estrutura. Este erro é particularmente importante no caso de vidas longas, para as quais a fase de iniciação pode atingir, em determinados casos, valores da ordem de 80% da vida total à fadiga. Dentro dos métodos actualmente usados na previsão da iniciação de uma fenda, os métodos locais são os mais importantes. A sua aplicação exige o prévio conhecimento das propriedades elastoplásticas cíclicas do material. Assim, apresentamse neste trabalho um conjunto de resultados de ensaios realizados para obtenção das propriedades elastoplásticas cíclicas e de fadiga oligocíclica para a liga de alumínio 6061-T651.
Avaliação das incertezas na calibração de um medidor de consumo de ar para um motor de combustão interna
Authors: Soto F. P. , Silva J. A. , Santos A. M. , Sanches A. G.
Published: November 2024

O caráter experimental de um trabalho científico e os resultados obtidos podem ser objeto de questionamento no tocante ao grau de incerteza proveniente dos instrumentos de mediyao envolvidos nos ensaios.
O trabalho desenvolvido trata da aplica,;ao de urna metodologia para o cálculo do fluxo de ar medido por um bocal, construído para medir o consumo de ar de um motor de combustao interna (MCI), levando em considerayao as incertezas sistemáticas (tipo B) e aleatórias (tipo A) do processo de mediyao. O bocal foi calibrado por urna placa de orificio instalada em urna bancada onde foi monitorada a temperatura da cabine de ensaio, temperatura do fluxo de ar, variayio da pressao antes e depois da placa, pressao atmosférica local e pressao estática no tubo. Neste caso, comprovou-se que as incertezas sistemáticas (tipo B) puderam ser desconsideradas, entretanto, foi necessário seu cálculo para tomar esta decisao. Decisao baseada na comparayiio com a incerteza padrao estimada pela aplicayio do método dos mínimos quadrados.
Reología y mecánica de barros y lodos
Authors: Aguirre Pe Julián , Moncada Alix T. , Guatarasma Luis , Suárez Alejandra
Published: November 2024

En este artículo se analiza el flujo de mezclas homogéneas, de arena y arcilla, saturadas en agua. Se usó el viscosímetro Rheomat 30 para obtener la viscosidad, el esfuerzo cortante y la velocidad de corte para las distintas mezclas. La concentración en volumen varió entre 0,08 y 0,46 para la arena y entre 0,16 y 0,63 para la arcilla. Se midió la variación de las profundidades y velocidades, en una simplificación unidimensional. El flujo se estableció en un canal de plexiglás de 4,0 m de longitud, con pendientes entre 0,046 y 0,160, en el cual se retenía la mezcla mediante una compuerta que se retiraba súbitamente. Las ecuaciones de Navier Stokes no son fácilmente integrables en este flujo de esfuerzos complejos, a excepción de los casos particulares en los que predomina un tipo de esfuerzo. La velocidad de avance del frente de onda se midió mediante filmación con una video-cámara que se desplazaba paralelamente al frente de onda. También se grabó el paso de las ondas de lodo en tres estaciones diferentes. Se encontró que el esfuerzo de cedencia es inversamente proporcional a la concentración de arena y directamente proporcional a la concentración de arcilla. El flujo establecido en el equipo experimental, uniforme y permanente, mostró ser un flujo de Bingham.
Algoritmo de aprendizaje por refuerzo continuo para el control de un sistema de suspensión semi-activa
Authors: López Boada Mª Jesús , López Boada Beatriz , Díaz López Vicente
Published: November 2024

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MANFRED: robot antropomórfico de servicio fiable y seguro para operar en entornos humanos
Authors: Blanco Rojas Dolores , Al Ansari Salah , Castejón Sisamón Cristina , López Boada Beatriz , Moreno L.E.
Published: November 2024

En este artículo se presenta el proyecto MANFRED, que está siendo desarrollado por el Grupo de Manipuladores Móviles del Departamento de Ingeniería de Sistemas y Automática en la Universidad Carlos III de Madrid. El objetivo de este proyecto es la construcción de un robot manipulador móvil antropomórfico de servicios avanzado capaz de operar en entornos típicamente diseñados para humanos, seguro y fiable, y que pueda cooperar eficazmente con las personas en la realización de tareas diversas. La robustez, fiabilidad y seguridad, son requisitos fundamentales para que el robot pueda desarrollar su tarea de forma adecuada en entornos compartidos con seres humanos, sin necesidad de modificar el espacio de trabajo. En el desarrollo del proyecto MANFRED se ha abordado el diseño del robot desde su fase inicial asumiendo como condiciones prioritarias la robustez, seguridad y fiabilidad del sistema. En este artículo trataremos especialmente los aspectos relacionados con su diseño mecánico. Se exponen los resultados obtenidos centrándonos especialmente en las mejoras en cuanto a arquitectura hardware que presenta este manipulador móvil. En concreto se detallan ampliamente las características del manipulador ligero LWR-UC3M-1 cuyo diseño supone un avance significativo respecto a las soluciones industriales disponibles.
Análisis exergético de un sistema flexible de aire acondicionado con deshidratación
Authors: Guallar Paracuellos Jesús , De Gracia Villanueva Mª Dolores
Published: November 2024

Frente a la configuración típica de los sistemas de aire acondicionado de ciclo abierto que emplean deshidratación, en los que el caudal de retorno está fuertemente ligado al caudal de proceso, se propone un nuevo esquema que mejora la flexibilidad de la instalación, al desacoplar ambos caudales. Se propone esta solución para resolver un problema de aire acondicionado, apareciendo como equipo singular una rueda de deshidratación cuyo material adsorbente es silica gel. El procedimiento que se sigue en la caracterización de la instalación propuesta, hace hincapié en su análisis energético, basado en la segunda ley de la termodinámica. En base al segundo principio se obtiene la pérdida de exergía que se produce en cada uno de los componentes, la pérdida de exergía total del sistema y el valor del rendimiento exergético global. Como resultado del citado análisis se detectan los equipos que producen una mayor pérdida de energía útil. Por último se analiza cómo afecta la varia ción del caudal de regeneración en el funcionamiento global del sistema, respecto al coeficiente de operación y respecto al rendimiento exergético. Los resultados se han obtenido modelando el comportamiento de los equipos y las condiciones reales de operación con el programa EES (Engineering Equation Solver), el cual dispone de librerías con las propiedades termofísicas de las sustancias de trabajo y permite la obtención de diagramas psicrométricos útiles para la evaluación del comportamiento del sistema ante variaciones de operación.
Evaluation of the Chinese Herbal Formula Di Tan Tang as an Oral Add-On Therapy for Dogs with Presumptive Refractory Idiopathic Epilepsy: An Open-Label Investigation in 8 Dogs
Authors: Dewey Curtis Wells , Gridley Alyse , Fletcher April
Published: November 2024

Idiopathic (genetic) epilepsy is a common neurologic disorder of dogs and 25%-30% of these dogs are refractory to antiseizure drug therapy. The purpose of this open-label clinical trial was to evaluate the potential efficacy and tolerability of a traditional Chinese herbal formula Di Tan Tang as an add-on therapy for dogs with refractory presumptive idiopathic epilepsy. Eight dogs with refractory presumptive idiopathic epilepsy were evaluated for seizure frequency 3 months prior to and 3 months after instituting oral Di Tan Tang therapy (0.5g/10lbs body weight, q 12 hrs) using a prospective open-label, non-comparative clinical trial design. The overall mean reduction in seizure frequency after treatment with Di Tan Tang for the 8 dogs was significant (p=0.035) at 27%, with 2 dogs qualifying as responders (≥50% reduction in seizure frequency). One dog experienced mild sedation after starting Di Tan Tang; no other adverse effects were recorded for the remaining dogs. The results of this preliminary investigation suggest that Di Tan Tang may be a useful adjunctive treatment option for dogs with refractory epilepsy. Further clinical investigation into the potential use of Di Tan Tang in canine refractory epilepsy is warranted.
Batik Marunda as Cultural Heritageand Role in Sustainable Development
Authors: Dyah Woelandhary Ayoeningsih , Y Damayanti Nuning , Sunarya Yan Yan , Adriati Ira
Published: November 2024

Batik Marunda is a batik producer in Jakarta that has a role in supporting one of the Sustainable Development Goals (SDGs), such as empowering relocation communities in three flats in the North Jakarta area. The study analyzes how Batik Marunda's role in the cultural preservation program while still contributing to economic empowerment, waste management to batik and batik materials. Methods of research are field studies, interviews with batik producers, the concept of collaboration in three flats and their governance. The findings show that Batik Marunda empowers especially women in the three flats area, through various skills training that has an impact on increasing skills, insights and economic levels for local residents, to waste management to reduce textile waste and support one of the SDG goals, namely responsible production and consumption. The three flats collaboration in the North Jakarta area is expected to strengthen the creative, environmentally friendly economic network and improve the quality of empowerment in the surrounding community. In summary, this research sees the important role of governance integration between cultural preservation programs, community empowerment, innovation and governance to support the SDGs agenda in the aspects of decent work, economic growth, climate change in sustainable development efforts.