bluuebunny/crossref_metadata_2025 huggingface dataset:
Medición experimental de la densidad de la nube de cavitación en un Slit Venturi
Authors: Díaz Martínez Alejandro , Rivera López Jesús Eduardo , Arciniega Martínez José Luis , Juárez Navarro Carlos Alfonso , Gutiérrez Paredes Guadalupe Juliana , Orozco Durán Gabriela Esmeralda
Published: March 2023

En el presente trabajo, se reporta la caracterización experimental de la formación y desarrollo de la nube de cavitación en diferentes temperaturas de líquido 20, 30, 40 y 50 °C. Para ello, se construyó una instalación hidráulica que tiene como elemento principal un tubo Venturi de sección rectangular, con ella, se generaron las condiciones de flujo necesarias para formar la cavitación y medir las propiedades termodinámicas para el cálculo de los números adimensionales de Thoma y Reynolds. El error promedio de sesgo de las mediciones no superó el 1%, por tal razón, se aseguró la buena calidad del cálculo en los números adimensionales de Thoma y Reynolds.  Con los números de Thoma “σ” y Re se caracterizaron las diferentes fases de la nube de cavitación, desde incipiente, cuasi, desarrollada y super cavitación en el rango de temperaturas del experimento, encontrando que el tránsito de la cavitación incipiente a desarrollada es más fácil a temperatura ambiente, ya que, el régimen de flujo aumentará solo 15.82% en comparación con las otras temperaturas. El inicio de la nube de cavitación depende de la viscosidad del fluido, en el intervalo de prueba la variación de la viscosidad fue de 55% por lo que el régimen de flujo será afectado por la viscosidad y por consiguiente en el inicio de la nube de gas. Finalmente, la densidad del fluido en el rango de temperatura de la prueba permaneció constante, ya que no vario más de 1%, por lo que no afectó al régimen de flujo.
The Role of Academic Performance and Peer Influence in Senior High School Students' Programme Choice in Ghana
Authors: Senyametor Felix , Abagbana Vida Naa , Nugba Regina Mawusi , Adu Angelina , Asabere Michael Adu
Published: March 2023

The purpose of this study was to examine the determinants of students’ choice of programme at the Senior High School (SHS) level in the Gomoa East District of the Central Region of Ghana. It was a quantitative study underpinned by the positivist paradigm. The descriptive survey design was employed for the study. A self-developed questionnaire was used to collect data from a sample of 229 for the study. Multiple linear regression was used to analyse the data. The study found that students’ general academic performance was the best predictor of students’ choice of programme followed by advice from colleagues or peers of students. The study, therefore, recommended that the Ghana Education Service (GES) and Management of the Senior High Schools (SHSs), should work on equipping students with learning and research skills to enable them to enhance their self-efficacies and general academic performance.
Modern translation: практический курс перевода
Authors: Petrova A. V. , Chulkova E. A. , Arsenyeva D. A.
Published: March 2023

Учебное пособие разработано для формирования навыков по устному и письменному переводу, как на занятиях, так и самостоятельно. Пособие содержит 15 связанных между собой уроков, которые освещают современные и значимые темы — мировые события, научные разработки в сфере медицины и технологий, социальные явления и культурно значимые события. Каждый из уроков содержит тезаурус, тексты и предложения для перевода, билингвальный диалог, список ключевых слов к уроку, упражнения для устного перевода на слух с записью и без. В рамках учебного пособия освещаются и теоретические аспекты, связанные с типами и видами перевода, нормой перевода, предпереводческим анализом текста, трансформациями при переводе и влиянием стиля теста на перевод. Также пособие не только содержит переводческие комментарии, необходимые для предотвращения частых ошибок, но и предлагает темы для изучения на занятиях.
TD 2862 - Revitalização de áreas centrais nas cidades brasileiras por meio da mobilização de investimentos privados
Authors: Nadalin Vanessa Gapriotti
Published: March 2023

Além de concentrarem patrimônio histórico, frequentemente os centros concentram maior acessibilidade, em termos de mobilidade urbana, pois concentram infraestrutura urbana. Repovoar os centros contribui com cidades mais compactas e sustentáveis. Uma porção considerável de cidades brasileiras está neste momento desenhando legislações de incentivo ao repovoamento dos centros e de sua revitalização. Em parte como resposta ao esvaziamento de prédios que concentravam escritórios no pós-pandemia, em parte para dinamizar a economia local. Em comum, as mais recentes propostas de revitalização consideram que quase a totalidade dos recursos para bancar esses investimentos viriam da iniciativa privada. Nesse contexto, este trabalho contribui com o apontamento de possíveis desafios que os atuais e os novos projetos de revitalização de centros devem enfrentar para atingir seus objetivos. Notaram-se dois grandes desafios dos projetos de revitalização de áreas centrais já executados. Primeiramente, não apostar demais na dinâmica de valorização dos imóveis da região revitalizada, e errar em quanto é possível extrair de mais-valia urbana a partir dessa valorização. O outro grande desafio se refere a como garantir os direitos humanos, principalmente moradia digna, a todos os envolvidos no processo de revitalização.
Correlation Analysis of the Effect of Atmospheric Factors on the Negative Effect on the Health of the Population of Tijuana, Baja California, Mexico
Authors: Badilla Gustavo López , De Leon Montserrat Lujan , Rendón Gerardo Vigil , Alvarado Valencia Raúl Oswaldo , Álvarez Rodríguez Mayra Faviola , Ferman Victoria Víctor Hugo , González Medina Nancy Guadalupe , Carbajal Elizabeth Vinalay
Published: March 2023

This investigation was made to determine the correlation analysis of the presence of the atmospheric factors as air pollution agents as sulfur dioxide (SO2), nitrogen oxides (NOX), ozone (O3) and carbon monoxide (CO), and climatic parameters as relative humidity (RH) and temperature in the generation indices of lung cancer with death of pulmonary symptoms in the Tijuana city, which is considered as one of the most city contaminated in the Mexican Republic. Also were evaluated the health effects of persons in the skin as skin cancer detected in some persons of this border city, by the effect of the exposition for long time to the ultraviolet rays of sun, due to the deterioration of the ozone layer, which was detected by the ozone particles close to the ground surface in this city. In this city are presented air pollutants mentioned above, as the principal air pollutants and addition to the climatic factors as variations of relative humidity (RH) and temperature, were a negative effect n the health of population of this city, specially in the health symptoms mentioned above. To determine the relation of atmospheric factors and the occurrence of health symptoms mentioned above, was made an analysis with the Spearmen analysis. This scientific study was made in 2022.
Impact of Galaxy Mergers on Stellar Population Profiles of Early-type Galaxies
Authors: Yoon Yongmin , Ko Jongwan , Kim Jae-Woo
Published: March 2023

We study the impact of galaxy mergers on stellar population profiles/gradients of early-type galaxies (ETGs) using ETGs at z < 0.055 in the Stripe 82 region of the Sloan Digital Sky Survey and MaNGA integral field unit spectroscopic data. Tidal features around ETGs, which are detected from deep coadded images, are regarded as direct observational evidence for recent mergers. We find that ETGs with tidal features have less negative metallicity gradients and more positive age gradients than ETGs without tidal features at M
star ≳ 1010.6
M
⊙. Moreover, when integrating all the resolved stellar populations, ETGs with tidal features have lower metallicities by ∼0.07 dex and younger ages by ∼1–2 Gyr than ETGs without tidal features. Analyzing star formation histories, we discover that the mass fraction of young stellar populations with age <5 Gyr is higher in the central regions of ETGs with tidal features than in the same regions of the counterparts without tidal features. Compared to normal ETGs, ETGs with tidal features have a slow metal-enrichment history in the early universe, but they have been accelerating the metal enrichment through recently formed stars over the last few billion years. Many of our results can be explained if the effects of recently occurred mergers are different from those in the early universe, which are more likely to be rich in gas.
CEERS Key Paper. II. A First Look at the Resolved Host Properties of AGN at 3 < z < 5 with JWST
Authors: Kocevski Dale D. , Barro Guillermo , McGrath Elizabeth J. , Finkelstein Steven L. , Bagley Micaela B. , Ferguson Henry C. , Jogee Shardha , Yang Guang , Dickinson Mark , Hathi Nimish P. , Backhaus Bren E. , Bell Eric F. , Bisigello Laura , Buat Véronique , Burgarella Denis , Casey Caitlin M. , Cleri Nikko J. , Cooper M. C. , Costantin Luca , Croton Darren , Daddi Emanuele , Fontana Adriano , Fujimoto Seiji , Gardner Jonathan P. , Gawiser Eric , Giavalisco Mauro , Grazian Andrea , Grogin Norman A. , Guo Yuchen , Arrabal Haro Pablo , Hirschmann Michaela , Holwerda Benne W. , Huertas-Company Marc , Hutchison Taylor A. , Iyer Kartheik G. , Jones Brenda , Juneau Stéphanie , Kartaltepe Jeyhan S. , Kewley Lisa J. , Kirkpatrick Allison , Koekemoer Anton M. , Kurczynski Peter , Bail Aurélien Le , Long Arianna S. , Lotz Jennifer M. , Lucas Ray A. , Papovich Casey , Pentericci Laura , Pérez-González Pablo G. , Pirzkal Nor , Rafelski Marc , Ravindranath Swara , Somerville Rachel S. , Straughn Amber N. , Tacchella Sandro , Trump Jonathan R. , Wilkins Stephen M. , Wuyts Stijn , Yung L. Y. Aaron , Zavala Jorge A.
Published: March 2023

We report on the host properties of five X-ray-luminous active galactic nuclei (AGN) identified at 3 < z < 5 in the first epoch of imaging from the Cosmic Evolution Early Release Science Survey. Each galaxy has been imaged with the JWST Near-Infrared Camera, which provides rest-frame optical morphologies at these redshifts. We also derive stellar masses and star formation rates for each host by fitting its spectral energy distribution using a combination of galaxy and AGN templates. We find that three of the AGN hosts have spheroidal morphologies, one is a bulge-dominated disk, and one is dominated by pointlike emission. None are found to show strong morphological disturbances that might indicate a recent interaction or merger event. When compared to a sample of mass-matched inactive galaxies, we find that the AGN hosts have morphologies that are less disturbed and more bulge-dominated. Notably, all four of the resolved hosts have rest-frame optical colors consistent with a quenched or poststarburst stellar population. The presence of AGN in passively evolving galaxies at z > 3 is significant because a rapid feedback mechanism is required in most semianalytic models and cosmological simulations to explain the growing population of massive quiescent galaxies observed at these redshifts. Our findings show that AGN can continue to inject energy into these systems after their star formation is curtailed, potentially heating their halos and preventing renewed star formation. Additional observations will be needed to determine what role this feedback may play in helping to quench these systems and/or maintain their quiescent state.
An expanded description, natural history, and genetic variation of the recently described cobra species Naja fuxi Shi et al., 2022
Authors: Ratnarathorn Napat , Nadolski Bartosz , Sumontha Montri , Hauser Sjon , Suntrarachun Sunutcha , Khunsap Suchitra , Laoungbua Panithi , Radcliffe Curtis Andrew , Vasaruchapong Taksa , Tawan Tanapong , Chanhome Lawan
Published: March 2023

The morphological variation, extended distribution, and sequence divergence of a recently described of cobra Naja fuxiShi et al., 2022 captured from mountainous areas in Thailand are evaluated by using molecular and morphological analyses. We investigated the genetic variation and affinities of 72 specimens in the genus Naja by using mitochondrial DNA (cytochrome b and control region) and the nuclear DNA gene, C-mos. Morphological examination was conducted for 33 cobra specimens obtained from the northern, western, and north-eastern regions, and data on their natural history were gathered during field surveys. A high degree of genetic differentiation was shown to exist between the cobras collected from lowlands and those from mountainous areas. N. fuxi occurs in uplands bordering Thailand’s Central Basin, whereas the similar looking N. kaouthia Lesson, 1831 is more or less restricted to the lowlands. All phylogenetic and network analyses supported a distinct clade of N. fuxi from north, west, and, north-east regions. In addition, N. fuxi seems to exhibit a split between the north-eastern population and those from the north and west. The range of N. fuxi probably extends far into the mountainous areas of the neighbouring countries Myanmar, Laos, and Vietnam. Morphologically, N. fuxi in Thailand can be distinguished from all other cobra species in the adjacent Oriental Region. The speciation of cobras in Thailand likely reflects key events in the region’s geographical, climate and environmental history.
Improved wolf swarm optimization with deep-learning-based movement analysis and self-regulated human activity recognition
Authors: Thanarajan Tamilvizhi , Alotaibi Youseef , Rajendran Surendran , Nagappan Krishnaraj
Published: March 2023

A wide variety of applications like patient monitoring, rehabilitation sensing, sports and senior surveillance require a considerable amount of knowledge in recognizing physical activities of a person captured using sensors. The goal of human activity recognition is to identify human activities from a collection of observations based on the behavior of subjects and the surrounding circumstances. Movement is examined in psychology, biomechanics, artificial intelligence and neuroscience. To be specific, the availability of pervasive devices and the low cost to record movements with machine learning (ML) techniques for the automatic and quantitative analysis of movement have resulted in the growth of systems for rehabilitation monitoring, user authentication and medical diagnosis. The self-regulated detection of human activities from time-series smartphone sensor datasets is a growing study area in intelligent and smart healthcare. Deep learning (DL) techniques have shown enhancements compared to conventional ML methods in many fields, which include human activity recognition (HAR). This paper presents an improved wolf swarm optimization with deep learning based movement analysis and self-regulated human activity recognition (IWSODL-MAHAR) technique. The IWSODL-MAHAR method aimed to recognize various kinds of human activities. Since high dimensionality poses a major issue in HAR, the IWSO algorithm is applied as a dimensionality reduction technique. In addition, the IWSODL-MAHAR technique uses a hybrid DL model for activity recognition. To further improve the recognition performance, a Nadam optimizer is applied as a hyperparameter tuning technique. The experimental evaluation of the IWSODL-MAHAR approach is assessed on benchmark activity recognition data. The experimental outcomes outlined the supremacy of the IWSODL-MAHAR algorithm compared to recent models.
Análisis de factores que afectan a algunos métodos de ensayo para la medida de las prestaciones de durabilidad del hormigón
Authors: Revuelta David , Carballosa Pedro , García Calvo José Luis , Pedrosa Filipe , Mas Joan
Published: March 2023

Algunos códigos de hormigón incluyen, entre otras medidas para asegurar la durabilidad de las estructuras de hormigón, la medida de determinadas propiedades que pueden ser un índice indirecto para evaluar la durabilidad del hormigón sometido a ciertos tipos de ambiente. Este trabajo tiene por objeto analizar la influencia de varios factores (naturaleza del árido, relación agua/cemento, tratamiento previo), en los resultados obtenidos sobre hormigones fabricados con áridos de diferente naturaleza, comunes en amplias zonas de la Península Ibérica, al medir dos posibles indicadores de durabilidad: la profundidad de penetración de agua bajo presión, empleada en la reglamentación española, y la resistividad.
Efficient Speech Recognition System Based on an Improved MFCC Features Using LWT
Authors: Aymen Mnasri , Boufares Oussama
Published: March 2023

Creating a system that can hear and respond accurately like a human is one of the most critical issues in human-computer interaction. This inspired the creation of the automatic speech recognition system, which uses efficient feature extraction and selection techniques to distinguish between different classes of speech signals. In order to improve the ASR (automatic speech recognition), the authors present a new feature extraction method in this study which is based on modified MFCC (mel frequency cepstral coefficients) using lifting wavelet transform LWT (lifting wavelet transform). The effectiveness of the proposed approach is verified using the datasets of the ATSSEE Research Unit “Analysis and Processing of Electrical and Energy Signals and Systems.” The experimental investigations have been carried out to demonstrate the practical viability of the proposed approach. Numerical and experimental studies concluded that the proposed approach is capable of detecting and localizing multiple under varying environmental conditions with noise-contaminated measurements.
Development of EHR Using Blockchain Technology
Authors: Nath Manabili , Goswami Akangsha , Suman Smriti , Agarwalla Ritu , Venkateswarlu Boddu , Borah Malaya Dutta , Muppalaneni Naresh Babu
Published: March 2023

Electronic health records (EHRs) are the most effective method to store and share patient's data among different hospitals which a patient visits in the over the course of time. Data of the patient's medical history needs to be shared among the various healthcare providers for a better understanding of the patient's progress and to carry on with the treatment. The traditional methodology for storing patient's data poses threat to data integrity, security, reliability, provider and patient trust, interoperability among clients and easy accessibility of personal data. With the advent of blockchain technology and its application in the healthcare sector, it ensures immutability, user data protection and information accessibility to share data in a distributed storage for the verified parties. Blockchain technology provides us with the benefit of storing this data without the possibility of modification in a decentralized manner.
Improved Privacy of Data Transaction in IoT-Enabled Blockchain Technology Using Privacy-Based Machine Learning Algorithms
Authors: B. Dhiyanesh , L. Shakkeera , Y. Sharmasth Vali , H. Azath , Viswanathan Santosh Karthikeyan , Poonuramu Veeralakshmi
Published: March 2023

Conventional models rely on a trusted third party to check the data integrity of IoT data. These methods may not be applicable for global blockchains, or they may be invalid for transactions. Since most of the transactions in blockchains occur via scalable local ledgers that compromises on peer validation of transaction at local/global level. Hence, it is required to have an interface mechanism that enables the security of data. In this chapter, blockchain is regarded as a potential solution to secure the data via IoT supply chains, and a ML algorithm is utilised data. The ML model processes the data management based on the number of transactions, time of transaction, and transaction confirmation time. The ML algorithm is designed with a consensus protocol, which improves the scalability of data via blockchain networks. It helps in integrating the IoT data transmission while assessing the parameters. The results on the piracy of data transacted via blockchain show that the proposed blockchain-based secured IoT data management in telehealth supply chains has a higher level of security.
Resilient Vaccine Supply Chain
Authors: Lau Yui-yip , Wu Andrew Yang , Tang Yuk Ming , Man Jessica Wong Lok
Published: March 2023

The COVID-19 pandemic has happened globally for over two and a half years, the virus is rapidly swept across different parts of the geographical continents without particular vaccines and antiviral treatments. The introduction of generic vaccination campaigns is considered the crucial effective approach against COVID-19. As expected, there will be an increasing trend of people accepting vaccine injections in the forthcoming months. The development of a resilient vaccine supply chain management in the time of COVID-19 further improves the service delivery of clients, optimizes the current health system and management, and identifies the possible opportunities for the logistics industry in the future. To a certain extent, it will stimulate the economic revitalization by the high-end service in the post-COVID-19 period. Furthermore, blockchain is an innovative technology in the 21st century. The proposed research study generates groundbreaking research work to contribute to the health study and supply chain management in the post-COVID-19 pandemic.
Human Resource Information Systems as Strategic Tool for the Sustainability of the Public Health Sector
Authors: Udekwe Emmanuel , Iwu Chukwuma Gervase , De La Harpe Andre Charles
Published: March 2023

Information and communication technologies (ICT) dominate almost all professional domains, including the field of human resources management. Human resources information system (HRIS) is one such technology that can transform the way services are offered within the health sector. The public health sector is recognized as one of the most valued sectors for competitive and economic growth in a country. Understanding the extent to which HRIS can effectively become a strategic tool in the public health sector of South Africa is crucial. On the basis of this, there have been calls for research that pinpoints the necessary elements for the improvement of public health service delivery mandates. The chapter examines how HRIS can effectively become a strategic tool in the public health sector service delivery mandates using a partially integrated mixed-method to collect data. The study found among others that the public health sector of South Africa makes use of an outdated, PERSAL system. Some recommendations for practice and future research are also provided.
Cybersecurity Leadership Ethics in Healthcare
Authors: Wright Jorja B. , Burrell Darrell Norman
Published: March 2023

Ethical leadership transforms and unites social systems around common purposes of ethicality leveraging organizational connectedness. Cybersecurity and the ethics around it create a variety of complexities. Often healthcare organizations do not openly disclose the extent and nature of cyber data thefts and breaches, which puts those whose information has been exposed at significant risk. It often is whistleblowing that leads to the public finding out the severity of the attack. This requires the need to understand the importance of ethical organizational cultures and the decision-making process that takes place when medical organizations have cybersecurity breaches. Leadership value systems mitigate subjectivity constituting ethical themes of moral character and virtues to advance organizational trust. Healthcare organizational cybersecurity leaders employ strategic foresight to forge connections with ethicality. Ethical leadership implores professional competence and exemplary service cultivating in social responsibility.
Exploring Healthcare Cybersecurity Systems in the Age of COVID-19
Authors: Richardson Kevin , Burrell Darrell Norman , Mingo Horace C. , Ferreras-Perez Jennifer , Shen Philip , Muller S. Raschid , Bessette Dustin , Khanta Katrina
Published: March 2023

Unauthorized access to protected information in the healthcare industry is what constitutes a cyber breach. The repercussions of a data breach in cyberspace might be quite severe. Legal fees and settlements can result in a significant amount of additional expenses for leaders of organizations. When managing a data breach requires advance planning, it is possible to build a proactive and aggressive strategy to secure the data. It is essential to incorporate cybersecurity safeguards into information technology (IT) systems throughout the development stage in order to reduce the risk of being attacked by cybercriminals. Administrators of healthcare facilities now have the responsibility of managing both technological systems and clinical systems, which is especially important in the high-risk and high-vulnerability cybersecurity environment that has emerged in the wake of COVID-19. A systems dynamics method is taken in this chapter to investigate potential cybersecurity threats in the healthcare industry.
Information Security Threats in the Internet of Things (IoT)
Authors: Gravenor Nick , Adedoyin Festus Fatai
Published: March 2023

Automatic number plate recognition (ANPR) cameras are used by local authorities and law enforcement to monitor traffic flow and collect data. ANPR captures the registration plates on passing vehicles. This chapter will consider their use against existing policies and inherent risks associated with the management of the data they produce, focusing on economic theory and considerations, predominantly within law enforcement. The chapter finds that creating well-written policies and legislation ensures accountability and responsibility. Ensuring the correct budgeting models are applied both locally (microeconomy) and at the government (macroeconomy) level, the ANPR infrastructure can remain secure and effective. The policy must also include sharing security information and event management (SIEM) logs between law enforcement agencies to share actor intelligence as there is no risk of IP disclosure, reducing the risk of a tragedy of the commons. This will also improve public confidence.
Utilization Process for Electronic Waste in Eco-Friendly Concrete
Authors: Janardhana Kedri , Singh Vikash , Singh Satyendra Narain , Babu T. S. Ramesh , Bano Samreen , Boopathi Sampath
Published: March 2023

In this chapter, the authors discuss the utilization of e-waste in the concrete for civil construction activities. Various tests have been used to investigate the effects of e-waste mixed with concrete. The various percentages of e-waste have been mixed with concrete to improve the strength of buildings. An e-waste concrete beam has a maximum tensile strength of 6.23 MPa under sulfuric curing conditions, and the highest flexural strength at 10% e-waste replacement during the hydrochloride curing process. The compressive strength is at its highest value when e-waste replaces 10% of it. After 28 days of curing, the concrete cylinder's maximum split tensile strength was 15%. Thus, the e-waste could be effectively utilized for civil construction purposes to reduce its environmental impacts.
Os conceitos Escola Nova católica e Escolanovismo Católico na historiografia da educação brasileira (1992 – 2021)
Authors: Sgarbi Antonio Donizetti , Pinto Sabrine Lino , Gonçalves Mauro Castilho
Published: March 2023

O artigo debate a utilização, pela historiografia educacional brasileira, dos conceitos ‘Escola Nova Católica’ e’ Escolanovismo Católico’, referenciados por um estudo das produções acadêmicas das últimas três décadas. A partir de uma metodologia exploratório-descritiva, foram identificados níveis de emprego dos dois conceitos, desdobrados em expressões conexas. A investigação desenvolveu-se em uma das perspectivas histórico-filológicas que, de certo modo, têm incidido sobre as mais recentes investigações relativas à História Intelectual: a História Conceitual, de origem alemã, na esteira do historiador Reinhart Koselleck (2006). A pesquisa identificou diferentes usos e apropriações das expressões e reafirmou a relevância de novos estudos histórico-conceituais similares.
Prefabricated Construction in Sri Lanka: A Proposed Adoption Strategy and a Pilot Case Study from Sustainability Perspective
Authors: Jayawardana J. , Jayasinghe J. A. S. C. , Sandanayake M. , Kulatunga A. K. , Zhang G.
Published: March 2023

Prefabricated construction (PFC) has increasingly been recognised as a viable construction solution that has the potential to address the typical issues of conventional construction. Portability, quick fixing ability, less labour intensity, a massive potential for quality, productivity enhancements, and environmental savings are some of the most highlighted benefits of PFC. Developed nations and other industrialised regions have been applying these construction methods more successfully compared to developing economies such as Sri Lanka. Sri Lanka is slow in adopting PFC because of some inherent barriers. Thus, this study aims to strengthen the case for shifting to PFC in Sri Lanka. Firstly, the current status of the PFC in the Sri Lankan context is described, including the barriers to adoption. Subsequently, an adoption strategy is proposed using the learnings from successful countries. This adoption framework discusses in-depth strategies/ initiatives to overcome current barriers to adopt prefabrication in construction projects. Finally, a pilot case study is carried out to assess the potential of PFC from a sustainability perspective. The results show that PFC has potential time savings and slight improvements in greenhouse gas (GHG) emissions than traditional construction in the selected case studies. Reduced times have a huge positive impact on sustainability by cost savings and environmental benefits from less on-site waste and emissions from fuel and electricity usage of construction machines. The outcomes of this study can influence construction industry stakeholders, including government and academia, towards escalating the use of prefabricated technologies to maximise sustainability and project-specific benefits.
General Toeplitz kernels and -invariance
Authors: Câmara M. Cristina , Kliś-Garlicka Kamila , Ptak Marek
Published: March 2023

Motivated by the near invariance of model spaces for the backward shift, we introduce a general notion of
$(X,Y)$
-invariant operators. The relations between this class of operators and the near invariance properties of their kernels are studied. Those lead to orthogonal decompositions for the kernels, which generalize well-known orthogonal decompositions of model spaces. Necessary and sufficient conditions for those kernels to be nearly X-invariant are established. This general approach can be applied to a wide class of operators defined as compressions of multiplication operators, in particular to Toeplitz operators and truncated Toeplitz operators, to study the invariance properties of their kernels (general Toeplitz kernels).
Сигарообразный солитон и решения уравнений для возмущений потоков Риччи в $\sigma$-модели двумерной струны
Authors: Yan Jun
Published: March 2023

В рамках $\sigma$-модели двумерной бозе-струны выведены уравнения для возмущения потоков Риччи и коэффициенты аномалии Вейля. Уравнения соответствуют двухпетлевым уравнениям для полей гравитона и дилатона. Для сигарообразного солитона решение однопетлевого уравнения для возмущения выражается через гипергеометрические функции, решение двухпетлевого уравнения имеет асимптотический характер и получается путем разложения по малому параметру. С помощью уравнений Гаусса-Кодацци для возмущений потоков получены аналитические решения для коэффицентов $l$ и $n$ второй базисной формы. Это позволяет выразить через $l$ и $n$ деформированные главные кривизны двумерной поверхности. Проанализировано влияние квантовых потоков Риччи на геометрию пространства-времени, а также дано объяснение физического смысла коэффициентов аномалии Вейля при измерении масштаба импульса $\lambda$.
Current Status of Nationally Important Wetlands in Sivas Province, Turkey
Authors: Dirican Seher
Published: March 2023

This study is about the current status of nationally important wetlands in Sivas province. As a result of the study, it was determined that there are two nationally important wetlands in Sivas province. These are Tödürge Lake and Ulaş Lake are nationally important wetlands. Tödürge Lake and Ulaş Lake wetlands in Sivas are usually covered with a thick snow cover in winter. An intense bird activity begins in the spring. Many bird species prefer Tödürge Lake and Ulaş Lake wetlands to perform their breeding, resting, feeding and daily displacement activities. The wetland area of national importance in Sivas is 12334 hectares. Wetlands of national importance constitute 0.45 percent of Sivas province's surface area. Considering that the nationally important wetlands in Turkey are 1.12% of the total surface area, it has been determined that the size of the nationally important wetlands throughout the province of Sivas is insufficient. Wetlands are habitats at the lowest point of the basin in which they are located. Therefore, it is affected by all activities in the basin. In order to minimize these effects, rational and efficient use of Tödürge Lake and Ulaş Lake nationally important wetlands in Sivas province should be ensured.
Storytelling App for Child Using Natural Language Processing (NLP)
Authors: Shinganjude Rupali , Dekate Harsh , Bhad Vruttant , Gongal Krunal , Nagrikar Ritesh , Shinde Yash
Published: March 2023

The paper introduces a mobile app that is specifically designed to enable hearing-impaired children to access stories. The app differs from traditional storytelling methods, which involve reading or listening to stories, as it converts written text into sign language images using two algorithms. The first algorithm utilizes speech APIs to convert text to speech, while the second algorithm uses natural language processing techniques from the NLTK toolkit to convert speech to sign language. The app is capable of translating english words into Indian sign language, making it an invaluable tool for caregivers, teachers, and parents of hearing-impaired children. This research project contributes to the field of assistive technology by providing a platform that caters to the specific needs of hearing-impaired children, allowing them to enjoy stories in a way that is tailored to their unique abilities. One of the unique features of the app is its ability to translate English words into Indian Sign Language, which is particularly beneficial for caregivers, teachers, and parents of hearing-impaired children in India. By offering a platform that caters to the specific needs of hearing-impaired children, this research project contributes significantly to the field of assistive technology. The app's innovative approach to storytelling provides a tailored experience that allows hearing-impaired children to enjoy stories in a way that is engaging and accessible. This app has the potential to transform the way hearing-impaired children access stories, and its contribution to the field of assistive technology is significant. Overall, this paper underscores the importance of developing technology that caters to the needs of diverse communities and highlights the possibilities that emerge when technology is designed to serve all members of society.
‘Why it’s important to talk about our toilet needs in the workplace’ – Using Maslow’s Needs Theory to Shine a Light on Workers Living with IBD in the Workplace
Authors: Vaughan Hannah , Jolliffe Tricia
Published: March 2023

Inflammatory Bowel Disease (IBD) can be challenging for employees diagnosed with the illness as they experience increased absenteeism, feelings of anxiousness, and negative career impact. Moreover, workplace relationships and a lack of understanding of the condition are anxiety-provoking. Utilising Maslow’s (1943) Needs Theory, this study evaluated the effect of IBD on the working lives of individuals diagnosed with the condition and the support they received. Employees from several organisations in a range of industries engaged with this qualitative study. Semi-structured interviews were conducted with seven individuals who had received an official diagnosis of IBD and worked in paid employment for at least a year. Insiderness developed a rapport with participants as one of the researchers has lived experience of IBD due to being diagnosed with the condition. We identified five themes: physiological needs regarding symptoms and workplace obligations; safety needs relating to job security through HR policy concerning frequent absences; social (belonging) needs related to disclosure, management and employee attitudes, including their powerful effect; and finally, self-actualisation through the effect IBD can have on an individual’s career. We recommend that employers upskill management knowledge to aid employee inclusion, development and retention.
Sources of Stress, Burnout, and Career Decisions of Male Health and Nursing Professionals: A Qualitative Inquiry of the Challenges During the COVID-19 Pandemic
Authors: Dos Santos Luis Miguel
Published: March 2023

The human resources and workforce shortage of registered health and nursing professionals has been a long-term problem in health systems internationally, particularly during the COVID-19 pandemic. Many health and nursing professionals face stress and burnout, which may influence their career decisions and long-term human resources development. The purpose of this study is to investigate and understand the relationship(s) between sources of stress and the reasons why male health and nursing professionals decide to leave the profession within the next six months. With the employment of the social cognitive career and motivation theory and general inductive approach with 40 male health and nursing professionals, the results outlined personal considerations: my physical and mental health conditions, surrounding environments and individuals: pressure from my co-workers, and political considerations: unsupportive government policies, were categorized. The study provides recommendations to healthcare leadership, government agencies, human resources planners, and researchers to establish sustainable human resources strategies to solve the ongoing and long-term workforce shortage internationally.
Consequences of Urobilinogen on Chocolate Likeliness
Authors: Amjad Warisha , Imran Qadir Muhammad
Published: March 2023

Objective is to check the link between chocolate delineation with urine Urobilinogen. The urobilinogen in the intestine is directly changed to brown stercobilin, which allow the feces their characteristic color. It can also be lessen the inaugurated to stercobilinogen, which can then be further oxidized to stercobilin. The normal inaugurate enterohepatic urobilinogen cycle. High amounts of bilirubin are establishing in hemolysis, which produced high urobilinogen in the gut. In liver disease (such as hepatitis), the intrahepatic urobilinogen cycle is obstruct also increasing urobilinogen levels. Urobilinogen is converted to the yellow pigmented urobilin apparent in urine. Chocolate is used in all over the world for different purposes. Chocolate is mostly eaten in foreign countries. Chocolate is most eaten due to its sweet taste and the attractive dark brown color. Chocolate is also present in the form of cocoa powder. Chocolate is mostly present in solid form. Chocolate is most favorite thing of children. Chocolate is also used in making chocolate shake and bake the chocolate cake. Chocolate is also used as a flavor in different sweet dishes. 60% males have urobilirubin and 55% females have Urobilinogen. These are also a part of people which have chocolate depiction.
NEW ARITHMETIC FUNCTION RELATED TO THE LEAST COMMON MULTIPLE
Authors: MITTOU BRAHIM
Published: March 2023

The author’s last two papers concerned the study of arithmetic functions related to the greatest common divisor. In the present paper, similarly to the two previous papers we will define new multiplicative arithmetic functionsrelated to the least common multiple and we will study several interesting properties of them. Also, we will discuss the values of two special functionsof them at perfect numbers.
Crowned Dwarf Caiman (Paleosuchus trigonatus)
Authors: Arteaga Alejandro
Published: March 2023

This is the species account about the Crowned Dwarf Caiman (Paleosuchus trigonatus), a chapter in the Reptiles of Ecuador book. This account summarizes novel as well as historical information (recognition, natural history, distribution, conservation, etymology, and relevant literature) about the species and provides maps and images to facilitate identification of this reptile in the field.
Estabilização de rejeitos de minério de ferro filtrados com uso de aditivos para disposição em pilhas compactadas (dry stacking)
Authors:   , Machado Leonardo da Silva
Published: March 2023

Com os acidentes catastróficos ocorridos nos últimos anos, decorrentes do rompimento de barragens de mineração de ferro no Brasil, sugiram legislações mais restritivas à utilização de estruturas de barramento para a disposição dos rejeitos, o que proporcionou maior segurança à população, porém restringiu a utilização deste tipo de estrutura pela indústria da mineração. Sendo assim, a comunidade geotécnica, empresas mineradoras e empresas projetistas, necessitaram identificar outras metodologias de disposição de rejeitos como alternativas à substituição das barragens. Deste modo, somando-se ao avanço das tecnologias de filtragens de rejeitos, foi observada grande oportunidade nos empilhamentos a seco (dry stacking) de rejeitos compactados de minério de ferro. Diferentemente da disposição em barragens, onde ocorre geralmente o espigotamento de rejeito em polpa nos reservatórios, a disposição em pilhas ocorre similarmente a obras de terraplanagem, na qual são necessários muitos equipamentos para a compactação do material na umidade ótima, no grau de compactação adequado e na espessura especificada, de modo que a estrutura formada por taludes e bermas seja construída. Esta pesquisa visa a identificação de aditivos para estabilização de rejeito de minério de ferro que proporcionem ganhos geotécnicos com a sua aplicação em pilhas. Foram utilizados percentuais variados de bentonita, cimento, cal, agregado siderúrgico e estéril para a realização das misturas. Após a realização de ensaios de caracterização, compactação, resistência à compressão simples (RCS) e triaxial CIU SAT , foi possível identificar as misturas mais efetivas. Dentre elas, o rejeito com 2% de cimento, o rejeito com 2% de cal, o rejeito com 6% de agregado siderúrgico e a mistura com 80% de rejeito com 20% de estéril. As estabilizações com bentonita apresentaram redução dos parâmetros de resistência. Após a identificação dos percentuais ótimos, foram realizadas análises de estabilidade de uma pilha hipotética, na qual foram avaliadas diversas metodologias de utilização das misturas no empilhamento. Após as análises, pôde-se identificar que a estabilização de rejeito com 2% de cal apresentou as maiores médias de ganhos dos Fatores de Segurança (FS), 18,64%, possibilitando inclusive a otimização de ângulos de face geral dos taludes (em 11°), aumento da altura da pilha e, consequentemente, aumento da capacidade de volumétrica da estrutura. Por fim, também foram realizadas análises de estabilidade para verificação da otimização dos ângulos de face geral dos taludes da mistura de 80% de rejeito com 20% de estéril (em 4°), o que também proporcionou ganhos quanto à capacidade volumétrica da estrutura, porém com maiores vantagens econômicas de utilização (em relação a cal). Palavras-chave: Rejeito de minério de ferro. Dry stacking. Parâmetros de resistência. Aditivos no rejeito. Otimização de empilhamentos a seco de rejeitos.
Experimental study of ribbed sandwich panels under axial compression
Authors:   , Olivier Marcell José de Andrade
Published: March 2023

The idea of a construction model that can add sustainability, lightness, significant stiffness, and strength to the precast industry has contributed to the advancement in research on sandwich panels. These panels are manufactured and improved to obtain a high strength-to- weight ratio, stiffness-to-weight ratio, and other construction advantages such as fast assembly, cost reduction, and good insulation properties. This dissertation presents an axial compression analysis of sandwich panels with self-compacting concrete, EPS, and reinforcement to offer to those interested in alternative construction methods information on a viable solution advantageous at various levels that can be adapted and equally suited to their construction needs. This work presents a summary of the various applications, followed by a review that describes the influence of each component of the panel in its structural capacity. The advantagesand disadvantages of the panels are addressed, accompanied by several studies performed applying alternative materials and geometries. A laboratory study was conducted with six prototypes, where the influence of slenderness, materials used, and geometry on the failure mode to axial compression was evaluated. Finally, a brief conclusion of what was covered throughout the dissertation is presented. Keywords: Sandwich panel. Experimental analysis. Precast concrete element. Axial compression. Constructive system.
Hygiene standards of chemical elements of drinking water
Authors: Trofimovich Evgeny M.
Published: March 2023

Introduction. Drinking water that is good for human body must contain seven vital ions (K+, Na+, Ca2+, Mg2+, Cl–, HCO3–, SO42+) and eight essential organotropic (obligate) chemical elements (Fe, Mn, Cu, Zn, Mo, Co, F, I) in concentrations matching ranges of permissible hygiene standards (PHS). PHS is lacking for K+,
a major intracellular cation and for other chemical elements of drinking water.
Aim. To substantiate PHS for potassium in drinking water and propose PHS values for all ions and chemical elements based on obtained methodical patterns..
Materials and methods. Four groups of Wistar rats on standard feeding and drinking regimens based on drinking reflex, were receiving drinking water with the following concentration of ions (mg/dm3): K+ 1.0; Na+ 6.6–8.1; Ca2+ 20.0–23.0; Mg2+ 6.4–8.0; HCO3– 36.9; chlorides 3.1; sulfates 36.0. The control group has continued to take original water, while for other groups (of 10 rats) concentrations of K+ were the following: 0.02; 5.0; 50.0 mg/dm3. Dosage dependence of chronic exposure (9 months) to K+ ions of drinking water on the organism has been studied. Atomic absorption spectrometry and methods of estimation of metabolites in biological substrates were used. Experiment complied with international regulations.
Results. K+ PHS of 1.0–25.0 mg/dm3 was determined. A method for justification of PHS of vital and bio-essential chemical elements in drinking water was developed. Chronic exposure to aforementioned elements was demonstrated to retain the threshold nature of the effect. However, there exist two thresholds: transition from homeostasis to excess and to deficiency. Essential vital and organotropic elements do not possess inactive concentrations, that do not act on organism: below and above PHS they, as illustrated by K+, can negatively affect reflexes of the organism and cause undue stresses in regulatory homeostatic systems.
Limitations. The methodological approach to the justification of hygienic standards applies only to chemical elements that are integral components of useful physiologically complete drinking water with centralized water supply to the population. This is a distinguishing feature from the development of MPC of harmful substances in the water of drinking sources.
Conclusion. A system of hygienic differentiations of chemical elements in drinking water and a method of justification of their PHS has been developed.
Keywords: Sodium; chemical elements; norms; drinking water
Compliance with ethical standards. The experiment complied with the requirements of the Order of the Ministry of Health of the Russian Federation No. 276, GOST 52379–2005, the European Convention for the Protection of Vertebrates (ETS No. 123), Directive of the European Parliament and of the Council
of the European Union 2010/63/EC of 22.09.2010 on the protection of animals used for scientific purposes. The study was approved by the local ethics committee of the Novosibirsk Research Institute of Hygiene of Rospotrebnadzor.