bluuebunny/crossref_metadata_2025 huggingface dataset:
Detection, photolytic fate and removal of selected antidepressants in aqueous environment
Authors: Γιμένεζ-Χολγκάντο Κριστίνα
Published: October 2021

Τα δεδομένα που παρουσιάζονται σε αυτή τη διδακτορική διατριβή είναι μέρος ενός πολυεπιστημονικού έργου που έλαβε χρηματοδότηση από το πρόγραμμα Έρευνας και Καινοτομίας της Ευρωπαϊκής Ένωσης Horizon 2020 στο πλαίσιο της συμφωνίας επιχορήγησης Marie Skłodowska-Curie No 765860 (AQUAlity). Το ατομικό μου έργο περιλαμβάνει τα ερευνητικά πεδία της Αναλυτικής Χημείας, των Χημειομετρικών εργαλείων, της Χημείας Υλικών και της Χημείας Περιβάλλοντος. Οι στόχοι αυτού του ατομικού διδακτορικού προγράμματος, χωρίστηκαν σε διαφορετικά καθήκοντα ανάλογα με τους ακόλουθους συγκεκριμένους στόχους:- Η ανάπτυξη φιλικών προς το περιβάλλον μεθόδων για τον προσδιορισμό των CECs- Η αποσαφήνιση της σημασίας των φωτοχημικών αντιδράσεων στη συμβολή τους στον αβιοτικό μετασχηματισμό των CECs- Μέσω άμεσων ή έμμεσων οδών- Εκτίμηση τοξικότητας- Και η εφαρμογή αυτής της γνώσης σε πραγματικά περιβαλλοντικά ύδατα, όπως τα λύματα νοσοκομείου και αποχέτευσης από τα Ιωάννινα, και τα νερά της λίμνης Παμβώτιδας, που είναι λίμνη των Ιωαννίνων.Ο πρώτος κύριος στόχος αυτής της διπλωματικής εργασίας ήταν η ανάπτυξη μιας πράσινης αναλυτικής μεθόδου μικροεκχύλισης για τον ποιοτικό και τον ποσοτικό προσδιορισμό τριών διαφορετικών φαρμακευτικών προϊόντων - στόχων (σερτραλίνη, σιταλοπράμη και κλοζαπίνη), που ανήκουν στην οικογένεια των ψυχιατρικών φαρμάκων και θεωρούνται ως αναδυόμενοι ρύποι. Μετά από αυτό, διερευνήθηκε η φωτολυτική τους συμπεριφορά στο περιβάλλον και τα φάρμακα ακτινοβολήθηκαν υπό διαφορετικές συνθήκες (λάμπα Xe και τεχνητή και φυσική ηλιακή ακτινοβολία) και σε διαφορετικές μήτρες (νερό Milli-Q, λύματα νοσοκομείων, WWTP και νερό της λίμνης Παμβώτιδας) μέσω άμεσων ή έμμεσων οδών. Επίσης, τα φάρμακα ακτινοβολούνταν παρουσία οργανικής ύλης (WEOM) που εξήχθη υπό ήπιες συνθήκες από τα ιζήματα της λίμνης Παμβώτιδας. Επιπλέον, εφαρμόστηκαν Προηγμένες Διαδικασίες Οξείδωσης (APOs) όπως το TiO2 για τη μείωση της ρύπανσης. Τα φωτοπροϊόντα φαρμάκων προσδιορίστηκαν μέσω HPLC-HRMS και προτάθηκαν διαδρομές φωτοαποικοδόμησης. Τέλος, ακολουθήθηκε εκτίμηση τοξικότητας με βάση το Vibrio fischeri και το πρόγραμμα US EPA ECOSAR.
Orthodoxy, illusio, and playing the scientific game: a Bourdieusian analysis of infection control science in the COVID-19 pandemic
Authors: Greenhalgh Trisha , Ozbilgin Mustafa , Contandriopoulos Damien
Published: October 2021

Background:

Scientific and policy bodies’ failure to acknowledge and act on the evidence base for airborne transmission of SARS-CoV-2 in a timely way is both a mystery and a scandal. In this study, we applied theories from Bourdieu to address the question, “How was a partial and partisan scientific account of SARS-CoV-2 transmission constructed and maintained, leading to widespread imposition of infection control policies which de-emphasised airborne transmission?”.

Methods:

From one international case study (the World Health Organisation) and three national ones (UK, Canada and Japan), we selected a purposive sample of publicly available texts including scientific evidence summaries, guidelines, policy documents, public announcements, and social media postings. To analyse these, we applied Bourdieusian concepts of field, doxa, scientific capital, illusio, and game-playing. We explored in particular the links between scientific capital, vested interests, and policy influence.

Results:

Three fields—political, state (policy and regulatory), and scientific—were particularly relevant to our analysis. Political and policy actors at international, national, and regional level aligned—predominantly though not invariably—with medical scientific orthodoxy which promoted the droplet theory of transmission and considered aerosol transmission unproven or of doubtful relevance. This dominant scientific sub-field centred around the clinical discipline of infectious disease control, in which leading actors were hospital clinicians aligned with the evidence-based medicine movement. Aerosol scientists—typically, chemists, and engineers—representing the heterodoxy were systematically excluded from key decision-making networks and committees. Dominant discourses defined these scientists’ ideas and methodologies as weak, their empirical findings as untrustworthy or insignificant, and their contributions to debate as unhelpful.

Conclusion:

The hegemonic grip of medical infection control discourse remains strong. Exit from the pandemic depends on science and policy finding a way to renegotiate what Bourdieu called the ‘rules of the scientific game’—what counts as evidence, quality, and rigour.
Impact and paybacks of biomedical research findings in Malaysia 2005–2015
Authors: Lai Pei Kuan , Nalliah S. , Teng C.L. , Chen N.L.P.
Published: October 2021

Background:

Impact in research encompasses health, economic, and cultural benefits beyond adding to the knowledge base. Funders are under immense pressure to be accountable for the paybacks from funded research.

Aims and objectives:

The aim of this study was to look into the impact of funded biomedical research between the years 2005 and 2015 in Malaysia from the aspects of knowledge production, research targeting and capacity building, as well as health system policy and decision making.

Methods:

This study employed a convergent parallel mixed-methods research design. Biomedical projects related to breast cancer, coronary heart disease, and dengue, funded by the Ministry of Health (MOH), Ministry of Higher Education (MOHE), and Ministry of Science, Technology, and Innovation (MOSTI) between the years 2005 and 2015, were included.

Findings:

From the questionnaire responses (n=58), on average each funded project managed to produce two outputs and one higher degree student. More than half (61.4%) of the funded projects led to subsequent future research. However, low citations in systematic reviews (10.3%), health policies (6.9%), and clinical practice guidelines (5.2%) were reported. In-depth interviews with the key opinion leaders also saw that most of the local research findings were found to be irrelevant to be adopted into policies by the policymakers.

Discussion and conclusions:

Paybacks on knowledge production as well as research targeting and capacity building had been achieved, but impact on health system policy and decision making had not been well attained, due to the lack of relevant research findings needed by the policymakers.
Evaluation of the role of beam homogeneity on the mechanical coupling of laser-ablation-generated impulse
Authors: Terragni Jacopo , Battocchio Pietro , Bazzanella Nicola , Orlandi Michele , Burger William J. , Battiston Roberto , Miotello Antonio
Published: October 2021

The material emitted from a target surface during laser ablation generates a net thrust (propulsion) in the opposite direction. The momentum generation efficiency of this laser-driven propulsion is given by the mechanical coupling coefficient (

C

m

). In this work, we considered nanosecond UV laser ablation of the aluminum 6061 alloy to study the

C

m

behavior with different irradiating conditions. This is done by systematically changing fluence, uniform/nonuniform intensity, and incident angle of the laser beam. In particular, we found that when dealing with nonuniform laser intensity, characterizing

C

m

exclusively in terms of fluence is not fully satisfactory because the energy distribution over the irradiated area plays a key role in the way material is removed—interplay between vaporization and phase explosion—and thrust is generated.
Fast-iterative automatic reconstruction method for quantitative phase
image with reduced phase perturbations in off-axis digital holographic
microscopy
Authors: Castaneda Raul , Doblas Ana
Published: October 2021

This works presents a reconstruction algorithm to recover the complex
object information for an off-axis digital holographic microscope
(DHM) operating in the telecentric regimen. We introduce an automatic
and fast method to minimize a cost function that finds the best
numerical conjugated reference beam to compensate the filtered object
information, eliminating any undesired phase perturbation due to the
tilt between the reference and object waves. The novelties of the
proposed approach, to the best of our knowledge, are a precise
estimation of the interference angle between the object and reference
waves, reconstructed phase images without phase perturbations, and
reduced processing time. The method has been validated using a
manufactured phase target and biological samples.
Concept and application of a linearized ring multipass optics configuration
Authors: Waßmuth Björn , Fuchs Guido W. , Zimmermann Henrik , Giesen Thomas F.
Published: October 2021

A multipass optics (MPO) system is used to increase the optical path length in a limited volume. Well-known concepts such as the White-type cell and the Herriott-type cell are used in many applications. The optical path in these cells leaves a large portion of the cell volume unused. In contrast, MPO systems with astigmatic mirrors have significantly more beam passes per volume, but because of their reduced symmetry along the beam axis they are much more sensitive to misalignment. Our goal is to develop MPO systems that have both: the high beam densities of astigmatic MPO systems and the optical robustness of Herriott-type optics. We show that linearized optical ring resonators, which can be constructed by means of simple

2

×

2

optical ABCD-matrices, lead to suitable solutions. The concept is demonstrated using a MPO system with a base length of 150 mm and a total beam path length of 19.2 m, optimized for laser beams of 10 µm wavelength. The volume of the cell is

295

c
m

3

with a beam density that is four times higher compared to a standard Herriott-type cell.
Crafting Anatomies: Archives, Dialogues, Fabrications, Katherine Townsend, Rhian Solomon and Amanda Briggs-Goode (eds) (2020)
Authors: Slater Alison
Published: October 2021

Review of: Crafting Anatomies: Archives, Dialogues, Fabrications, Katherine Townsend, Rhian Solomon and Amanda Briggs-Goode (eds) (2020)

London: Bloomsbury, 344 pp.,

ISBN 978-1-35007-548-1, ePDF, £61.20
Novas Perspetivas para a Regulação do Setor Elétrico
Authors: Marques Vítor
Published: October 2021

O presente texto apresenta a evolução da regulação do setor elétrico em Portugal desde o início do século XXI, quando muitos setores elétricos, entre os quais o nacional, ainda se encontravam no início do processo de liberalização. Este processo era movido pelo objetivo europeu de criação do Mercado Interno da Energia. Desde então, o contexto da regulação do setor elétrico na Europa e em Portugal evoluiu significativamente. Os avanços tecnológicos, as necessidades decorrentes das alterações climáticas e o maior escrutínio dos consumidores sobre as ações dos reguladores constituem motores da alteração drástica desse contexto. Ao discutir as principais alterações tecnológicas e organizativas que se verificaram nos últimos anos, este estudo apresenta, igualmente, um conjunto de desafios para a regulação do setor elétrico em Portugal no contexto europeu.
As Agregações das Operadoras de Água e o Caso das “Baixas” em Portugal
Authors: Hora Lopes Sérgio
Published: October 2021

A agregação regional de operadores de serviços de águas tem vindo a ser considerada como uma possível solução organizativa para a melhoria destes serviços, quer para uma melhor qualidade de serviço quer para uma maior eficiência no desempenho das entidades responsáveis pela prestação do serviço. O objetivo deste trabalho é o de, para além de referir alguma da literatura mais recente publicada sobre o assunto, estudar as agregações que têm sido feitas em Portugal na última década. Estas são bem diferentes das da primeira e segunda geração, verificadas no final dos anos 80 até meados da 2000/2010, pois dirigem‑se essencialmente para a integração de operadores com distribuição e não produção (baixa e não alta) além de integrarem territórios muito mais reduzidos e muito menos populosos, desenvolvidas num contexto diferente e condições de sucesso igualmente diversas.
The frequency and structure of metabolic disorders in obese women in combination with polycystic ovary syndrome
Authors: Bolotova E. V. , Dudnikova A. V. , Krutova V. A. , Prosolupova N. S.
Published: October 2021

Background: Obesity is considered a global epidemic and is one of the most significant medical and social problems. Research in recent years shows that in 25-45% of cases of obesity, polycystic ovary syndrome (PCOS) is detected. The influence of obesity on the pathogenesis of metabolic disorders in this category of patients remains controversial

Aims: to determine the frequency and structure of metabolic disorders in obese women in combination with polycystic ovary syndrome (PCOS).

Materials and methods: A single-center cross-sectional sample survey of women of reproductive age was conducted. The study included clinical anthropometry with measurement of body weight, height, waist circumference (OT) and hip circumference (OB), followed by calculation of body mass index (BMI) and OT/OB ratio, and measurement of blood pressure (BP). A biochemical blood test was performed, the hormonal status was examined, and an ultrasound examination of the pelvic organs was performed.

Results: A survey of 136 women of reproductive age was conducted. Group 1 included obese women without PCOS (59 patients), group 2 included obese women in combination with PCOS (45 patients), and the control group included 38 healthy women. Group 1 included obese women without PCOS (59 patients), and group 2 included obese women with PCOS (45 patients), in the control group — 38 healthy women. Among group 2 patients, dyslipidemia, visceral obesity, arterial hypertension, insulin resistance, hyperinsulinemia, and hyperuricemia were significantly more common (p<0,05). Correlations between BMI and triglycerides, testosterone and total cholesterol were found (p<0,05). Obese and PCOS patients had significantly higher levels of C-reactive protein(CRP), fibrinogen, anti-Müllerian hormone (AMH), and hepatic transaminases (p<0,05). Vitamin D deficiency was detected in 13,2% of patients, and insufficiency — in 22,7% of patients. There is a statistically significant correlation between the level of 25 (OH)D and indicators of BMI, follicle-stimulating hormone, luteinizing hormone (p<0,05), the level of AMH (p=0,008).

Conclusions: A high frequency of metabolic disorders in obese women in combination with PCOS has been identified, which necessitates early screening, diagnosis and treatment of these disorders to strengthen reproductive health and prevent chronic non-communicable diseases.
O tabuleiro da Educação Básica: o novo Fundeb e a Escola Pública
Authors: Vargas Thaís Conte , Bizelli José Luís , Cruz José Anderson Santos
Published: October 2021

Diante da falta de um Sistema Educacional Único, para o Brasil, o que daria visibilidade à estrutura organizacional e aos dados de desempenho, o trabalho analisa indícios de um aumento de participação do setor privado na oferta de Educação Básica. O caminho escolhido foi acompanhar a flexibilização da legislação naquilo que diz respeito às possibilidades de o investimento público ser utilizado por empresas privadas de educação. Mascarados por um discurso de desqualificação da escola pública enquanto local onde se ensina o aluno para os desafios do futuro, desafios tecnológicos de um mundo digital, e pela construção de indicadores de avaliação que pouco contribuem para aferir a relação ensino-aprendizagem, o jogo de privatização da Escola Básica está sendo jogado no presente momento.
Políticas de formação docente: as parcerias público-privadas na rede de ensino estadual paulista
Authors: Souza Ana Cristina Gonçalves de Abreu , Feldmann Marina Graziela
Published: October 2021

Este artigo é parte de uma pesquisa de Estágio Pós Doutoral realizada no Programa Educação: Currículo da Pontifícia Universidade Católica de São Paulo que estuda as parcerias público-privadas nas formações dos professores da rede estadual paulista. Objetiva analisar quais as parcerias de formação estabelecidas entre a Coordenadoria da Escola de Formação e Aperfeiçoamento de Professores – Paulo Renato Costa Souza (EFAPE) e as instituições privadas nos anos de 2018 e 2019. Recorre a abordagem qualitativa empregando a pesquisa bibliográfica e análise documental. O corpo teórico embasa-se em Hernandez, Laval, Freire e Feldmann. Os resultados apontam um número crescente de parcerias entre a rede pública e instituições privadas. A racionalidade neoliberal que permeia o campo da Educação e, mais especificamente, da Formação Docente fica confirmada, exigindo, do poder público, a criação de projetos colaborativos que incluam a garantia de princípios formadores emancipatórios e críticos fortalecendo a autonomia da rede pública de ensino.
Relações entre gestão do conhecimento, aprendizagem organizacional e educação corporativa
Authors: Langhi Celi , Cordeiro Denilson de Sousa
Published: October 2021

Empresas brasileiras têm exigido novas competências de seus colaboradores. Para isso, novos modelos de gestão, aprendizagem e educação têm sido adotados, a fim de harmonizar os interesses das pessoas e suas carreiras com os objetivos estratégicos das corporações. Este artigo tem o objetivo de identificar relações entre gestão do conhecimento, aprendizagem organizacional e educação corporativa. A partir da abordagem dos conceitos em textos acadêmicos produzidos sobre os tópicos, os assuntos foram articulados de modo a trazer maior compreensão sobre o tema. Como resultado, foi possível analisar como o conhecimento é obtido, armazenado, disseminado e empregado pelas empresas, o que fomenta a aprendizagem no ambiente corporativo, viabilizando o planejamento e a implantação de programas de educação que não apenas qualificam os colaboradores, mas também os ajudam a exercer a liderança nos diversos grupos de trabalho das organizações, o que traz diversos benefícios para indivíduos, grupos, empresas, comunidades e para a sociedade.
Reflexões sobre as alterações do perfil dos estudantes de uma licenciatura em matemática por meio das narrativas de professores formadores
Authors: Bitencourt Loriége Pessoa , Veiga Bruna Borges da
Published: October 2021

Neste estudo, discorre-se sobre a formação de professores, tendo-se o objetivo de evidenciar os aspectos que caracterizam as alterações do perfil dos estudantes de uma licenciatura em Matemática, comparando-se esse processo no decorrer de três décadas, utilizando-se a seguinte questão norteadora: De que modo, na visão dos professores formadores da Licenciatura Plena em Matemática, participantes desta pesquisa, o perfil dos estudantes dessa licenciatura foi se alterando? Os dois professores que narraram a história da formação docente revelaram as características recorrentes que permitiram evidenciar as alterações do perfil dos estudantes ao se comparar duas épocas dessa formação. Na discussão dos dados utilizou-se a análise histórica, tendo-se as narrativas como instrumento de investigação da História Oral. Os resultados evidenciaram que os sujeitos percebem uma modificação no perfil dos estudantes devido às mudanças sociais, em especial aos avanços tecnológicos e ao acesso a eles.
Architecture for ports scan using mobile agents
Authors: Rocha-Hernández July Andrea , Jaramillo-Cobos Roxana Andrea , Wanumen-Silva Luis Felipe
Published: October 2021

This article proposes a software architecture for port scanning using mobile agents (AM), in order to facilitate the monitoring of network traffic or detect vulnerabilities in the logical ports of the operating system. The exposed architecture allows: to execute resident processes in each one of the stations to be monitored; include communication mechanisms that provide a high degree of autonomy to the AM; and include route planning mechanisms that choose the optimal route for each agent assigned to perform tasks on a network host. Consequently, a high availability of information in distributed environments is guaranteed, as well as a decrease in network traffic, which allows other AMs in the system to be informed of the probability of an attack on a given port. In this case, given a local network made up of ten computers and AM on a Tahiti server, the architecture is validated by means of the Scan Mobile UD prototype - developed in Java using Aglets - which gives a vulnerability probability of 16, 43% for the proposed scenario.
Characterization of automated systems integrated to a BMS: Successful case El Dorado International Airport
Authors: García-Velasco Luis Gabriel , Escobar-Díaz Andrés
Published: October 2021

The article describes and characterizes the systems integrated into the Building Management System -BMS- of El Dorado International Airport: air conditioning, electrical system, fire detection, dry extinction, vertical and horizontal transport, plumbing, handling of luggage and access control system, from an exploratory investigation. To this end, a conceptual review is carried out on the subject and a methodology is proposed where the sources are sectioned based on a categorical taxonomy. The search for information focused on the databases: IEEE Xplore, Google Scholar, and expert knowledge validated by the ORCA research group. A characterization of the automation systems that are integrated in the BMS of the airport is obtained where, analyzing the integrations, it is recurrent that manufacturers or brands work with more open protocols for integration, and not have to resort to other means integrators such as the Field Server that was used in several of the systems identified at review.
El sistema de distribución y la eficacia en programas de asistencia nutricional infantil. Caso Bienestarina - Colombia
Authors: Rueda Velasco Feizar Javier , Adarme Jaimes Wilson , Gonzalez Feliu Jesus
Published: October 2021

Contexto: Los programas de asistencia alimentaria (PAA) producen y distribuyen alimentos o complementos nutricionales para la reducción de la desnutrición en población vulnerable. En ellos, el sistema de distribución del PAA permite conectar la oferta de asistencia con la población objetivo. Esta investigación busca explorar las relaciones y la articulación entre los elementos del sistema de distribución y la eficacia de un PAA altamente ligado a la población infantil, denominado “Bienestarina Más®” en Colombia.
Método: La relación entre la eficacia del programa y el sistema de distribución se realiza triangulando datos reales de las entregas del PAA y estadísticas poblacionales oficiales. A su vez, las capacidades de los sistemas de información usados para la distribución son contrastadas con el alcance del sistema, usando fuentes oficiales y manuales de usuario.
Resultados: El análisis muestra potencial de mejora en la cobertura de la región suroccidental del país, brechas entre la oferta y la demanda, en especial ante el análisis desagregado de datos, flujos de carga poco coherentes y diferencias entre el alcance del PAA y el alcance de los sistemas de acceso al programa y trazabilidad de la carga.
Conclusiones: Este artículo muestra cómo fallas en la articulación entre los procedimientos de acceso, los perfiles sociales de la población, las asignaciones de los flujos de carga y las tecnologías de la información para el reconocimiento del usuario y el seguimiento de la carga pueden afectar la eficacia en la atención a la población infantil.
FROM ‘POLITICAL ECONOMY’ TO ‘POLITICAL SOCIOLOGY’ OF THE CLIMATE CATASTROPHE: WHY THE ECONOMY NEEDS TO BE BLOWN UP TO BE BORN AGAIN?
Authors: BARANOWSKI MARIUSZ
Published: October 2021

The conceptual approach to real social phenomena and problems, as well as factors influencing and shaping them, although theoretical in nature, has momentous practical consequences. The issue of nature, and in a narrower sense of climate, constitutes a telling and representative example of the implications of the theoretical and methodological orientation adopted to study society and its relationship with the environment and its resources. This short paper aims to highlight the consequences of the shift in research perspective from ‘political economy’ to ‘political sociology’ in the context of climate change and its challenges. The article’s main argument is to outline the implications of the change of reference point for the conceptualisation and operationalisation of theoretical frameworks related to social problems and challenges, which, nota bene, are conditioned directly and indirectly by the state of the ecosystem. And the central thesis is that a fundamental reorientation towards nature and climate change within the dominant capitalist system will only be camouflaged maintenance of the status quo (accompanied noisily by a series of technological and fiscal solutions that solve nothing).
LESZEK KOCZANOWICZ, ANXIETY AND LUCIDITY: REFLECTIONS ON CULTURE IN TIMES OF UNREST
Authors: LEJZEROWICZ MAGDA
Published: October 2021

In the book entitled  Anxiety and Lucidity. Reflections on Culture in Times of Unrest Leszek Koczanowicz reflects upon the phenomena of fear and anxiety in essential areas of life, both for the individual as well as the community. He adopts an interdisciplinary perspective so characteristic of an insightful researcher of culture. Fear and anxiety, as he argues, are intrinsic to modernity - the inability to get rid of them is characteristic of modern man. Koczanowicz puts his thoughts on paper in a demanding fashion, which does not, however, obscure the pleasure of reading these well-written and intelligent texts. The author's knowledge is vast, which transpires in the reviewed publication.
LVRT enhancement of DFIG-driven wind system using feed-forward neuro-sliding mode control
Authors: Hiremath Ravikiran , Moger Tukaram
Published: October 2021

Power generation losses arise in doubly fed induction generator (DFIG) system due to grid faults. The system’s protection should ensure that the wind turbine (WT) generator meets the grid requirements through a low voltage ride through (LVRT) technique. This article proposes the feed-forward neuro-second order sliding mode (FFN-SOSM) control for the LVRT enhancement under voltage sag. This controller operates with the levenberg marquardt (LM)-super twisting (ST) algorithm for the uncertainties of the DFIG system. The LM-ST algorithm-based proposed controller is subjected to stability analysis. The advantages of the proposed controller are that it reduces the system parameter’s peak values and harmonic distortion of the system during grid disturbance. The performance of the proposed controller is compared with existing controllers in the literature with the help of MATLAB/SIMULINK. The hardware-in-loop (HIL) validates these simulation results performed on the OPAL-RT setup. Based on the studies, it is found that the proposed controller enhances the LVRT performance of the WT-DFIG system under transient conditions.
Optimal placement of wide area monitoring system components in active distribution networks
Authors: Chauhan Surinder , Dahiya Ratna
Published: October 2021

The optimal placement of micro-Phasor Measurement Units (µPMUs) reduce the cost of wide area monitoring system (WAMS) in active distribution networks (ADNs); therefore, it is becoming a popular research topic. However, µPMUs alone cannot minimize the WAMS cost. An appropriate location of Phasor Data Concentrator (PDC) and a fiber optic communication link (CL) that transfers data from µPMUs to PDCs also need to be optimized. Hence this paper proposes a hybrid algorithm that determines the optimal cost-effective solution of the placement problem of µPMUs, PDC, and CL. The proposed algorithm uses the graph theory and binary integer linear programming (BILP) with the constraints of distribution generation (DG) presence, regular network reconfiguration, and maximizing system redundancy. The proposed algorithm is tested on IEEE 69 bus, IEEE 123 bus, and 345 bus active distribution system. The results obtained show the reduction in cost mainly through the CL and optimal placement of µPMUs in decentralized WAMS.
Old Testament Imaginaries of the Nation in German, Dutch, and Anglo-American Protestant Political Thought
Authors: Johnson Sophia , van der Tol Mariëtta
Published: October 2021

This issue draws attention to the importance of Old Testament scholarship to conceptions of nationhood in Protestant political thought. Inclusive of biblical studies, history, theology, and political thought, this issue discusses hermeneutical as well as political tensions that are inherent to the reception of the Old Testament within political theology. These tensions primarily concerned the role of covenant, reason and the natural order, spilling into what would be recognized today as supersessionism, antisemitism and in some cases, even racism. Within that, it remains important to distinguish political contexts as the historical role of Protestant traditions and their current significance to right-wing uses of biblical imaginaries of the nation differs between Germany, the Netherlands as well as Anglo-American countries.
The pandemic silver lining: preparing osteopathic learners to address healthcare needs using telehealth
Authors: Taylor Jennifer , Wright Amanda , Summers Michael
Published: October 2021

Context

During the COVID-19 pandemic, many clinicians quickly adapted their way of practicing patient care by offering telehealth and virtual office visits while simultaneously having to minimize direct patient care. The shift in direct clinical learning opportunities provided to third- and fourth-year medical students required a shift in the educational curriculum to develop learner skills around the appropriate use of telehealth in patient care.

Objectives

The aim of this project was to provide exposure to students so they could learn the telemedicine equipment and best practices, and how to identify infectious diseases to improve access to care and meet the needs of the patient.

Methods

In July and August of 2020, the Indiana Area Health Education Centers Program partnered with Marian University College of Osteopathic Medicine (MUCOM) to support a 1 day telehealth simulation (online curriculum, group lecture, and two standardized patient encounters) into their clerkship curriculum. We utilized a retrospective pretest-posttest to assess changes in learner knowledge around telehealth after the program. At the conclusion of the telehealth training program, students were asked to complete a retrospective pretest-posttest assessing their level of preparedness to utilize telehealth equipment, their preparedness to demonstrate “telehealth best practices” in a manner consistent with protecting patient (and data) privacy, their confidence to utilize telehealth for identification of infectious diseases, and their confidence to utilize telehealth to identify proper treatment plans.

Results

A total of 96 learners completed the program in 2020. Posttest results demonstrate a statistically significant (p<0.05) improvement for learners’ self-reported level of preparedness to utilize telehealth equipment, their preparedness to demonstrate “telehealth best practices” in a manner consistent with protecting patient (and data) privacy, their confidence to utilize telehealth for identification of infectious diseases, and their confidence to utilize telehealth to identify proper treatment plans.

Conclusions

Our telehealth curriculum involving a video, interactive learning session, and two standardized patient experiences provided osteopathic medical learners with realistic simulated case scenarios to work through in effort to improve their knowledge and self-efficacy around the utilization of telehealth in practice.
Microstructure, mechanical and corrosion properties of nickel superalloy weld metal
Authors: Kısasöz Alptekin , Tümer Mustafa , Karaaslan Ahmet
Published: October 2021

Inconel 625 alloy is used in aggressive environments at high temperatures such as in petro-chemical applications, in the aeronautical and nuclear energy industries because of its propitious mechanical properties and corrosion resistance. In this study, Inconel 625 samples were joined with ERNiCrMo-3 filler metal using the MIG (metal inert gas) method. Also, the relationship between the microstructure and corrosion properties of the Inconel 625 weld were investigated. The microstructure properties of the weld metal were determined by a light metal microscope (LMM), a scanning electron microscope (SEM) and by energy dispersive spectroscopy (EDS) analysis. Moreover, the corrosion properties of the weld metal and the base material were examined by potentiodynamic polarization tests. The corrosion behavior and parameters of the electrochemical potentiodynamic polarization were determined depending on microstructure properties. Inconel 625 was joined successfully via multipass welding. Moreover, excessive heat input ensured the formation of intermetallic phases. Mechanical and corrosion properties of the weld metal were affected negatively due to the formation of intermetallics.
Der Erstgeborene Eingeborene oder warum man das Gerade nicht krumm machen soll. Ein neues unbekanntes griechisches Fragment aus dem Kommentar Cyrills von Alexandrien zum Hebräerbrief
Authors: Zawadzki Konrad F.
Published: October 2021

The present article offers the first edition of a hitherto unpublished Greek fragment from Cyril of Alexandria’s lost commentary on Hebrews. Moreover, the article provides a German translation of it and a discussion about its authenticity. A detailed theological analysis of the fragment that contains Cyril’s explanation of the Greek term ὁ πρωτότοκος (Hebr 1,6) concludes the article.
Justin’s Dialogue and the Search for Contemporary Discourse Between Christians and Jews: A Closer Look at Dialogue, Chapter 47
Authors: Georges Tobias
Published: October 2021

There has been a long-lasting scholarly debate on whether Justin’s Dialogue with Trypho reflects an authentic “Christian-Jewish dialogue.” Without claiming to provide an answer, this paper will focus on Dialogue, chapter 47 in order to point to a contemporary discourse between Christians and Jews that might form the background of Justin’s writing: In chapter 47, Trypho and Justin discuss whether there will be eternal salvation for Jews who believe in Jesus as the Messiah and continue to observe the law. Against other Christian opinions, Justin argues they will be saved provided they do not force their fellow Christians to observe the law to the same degree that they themselves do. While this is good evidence of an inner-Christian discourse on the salvation of Christ-believers who continue adhering to the law, the subsequent lines in chapter 47 suggest that those Jews who do not believe in Jesus Christ are part of the broader Christian-Jewish discourse on eternal salvation. This is because for Justin the crux in all attempts to make Christians observe the law (even the attempts of assumed Christ-believers) is they tend to replace faith in Christ with observance of law to the exclusion of the former. It is precisely the question of eternal salvation that motivates Justin and Trypho to start their discussion in the Dialogue (8,2–4).
Vergleich von Methoden zur Auswahl Digitaler Technologien für KMU
Authors: Solis Lesly Sánchez , Axmann Bernhard , Schuldt Tino
Published: October 2021

Kleine und mittlere Unternehmen (KMU) sind ein wichtiger Baustein für das Wirtschaftswachstum. KMU müssen digitale Technologien einführen, um wettbewerbsfähig zu bleiben. Aber wie wählt man die digitale Technologie aus, die am besten für das eigene Unternehmen geeignet ist? Dieser Beitrag untersucht zehn verfügbare methodische Vorgehensweisen und bewertet diese mit einem Paarweisen Vergleich nach Eignung und Effizienz für KMU. Dabei sind zwei methodische Vorgehensweisen für KMU gut anwendbar. Es muss aber die Effizienz dieser Methoden-Vorgehensweisen verbessert werden, um die Bedürfnisse und Eigenschaften von KMU noch besser zu berücksichtigen.
Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19
Authors: Dutta Aditya , Jevalikar Ganesh , Sharma Rutuja , Farooqui Khalid J , Mahendru Shama , Dewan Arun , Bhudiraja Sandeep , Mithal Ambrish
Published: October 2021

Aim

To study the prevalence of thyroid dysfunction and its association with disease severity in hospitalized patients of coronavirus disease-19 (COVID-19).

Methods

In this retrospective cohort study, thyroid function tests (TFT) of 236 hospitalized patients of COVID-19 along with demographic, comorbid, clinical, biochemical and disease severity records were analysed. Patients were divided into previous euthyroid or hypothyroid status to observe the effect of prior hypothyroidism on the severity of COVID-19.

Results

TFT abnormalities were common. Low free T3 (FT3), high thyroid-stimulating hormone (TSH) and low TSH were seen in 56 (23.7%), 15 (6.4%) and 9 (3.8%) patients, respectively. The median levels of TSH (2.06 vs 1.26 mIU/mL, P = 0.001) and FT3 (2.94 vs 2.47 pg/mL, P < 0.001) were significantly lower in severe disease. Previous hypothyroid status (n = 43) was associated with older age, higher frequency of comorbidities, higher FT4 and lower FT3. TFT did not correlate with markers of inflammation (except lactate dehydrogenase); however, FT3 and TSH negatively correlated with outcome severity score and duration of hospital stay. Cox regression analysis showed that low FT3 was associated with severe COVID-19 (P = 0.032, HR 0.302; CI 0.101–0.904), irrespective of prior hypothyroidism.

Conclusions

Functional thyroid abnormalities (low FT3 and low TSH) are frequently seen in hospitalized patients of COVID-19. Although these abnormalities did not correlate with markers of inflammation, this study shows that low FT3 at admission independently predicts the severity of COVID-19.
Associations between TG/HDL ratio and insulin resistance in the US population: a cross-sectional study
Authors: Gong Rongpeng , Luo Gang , Wang Mingxiang , Ma Lingbo , Sun Shengnan , Wei Xiaoxing
Published: October 2021

Background

Clinical data on the relationship between triglycerides (TG)/HDL ratio and insulin resistance (IR) suggest that TG/HDL ratio may be a risk factor for IR. However, there is evidence that different races have different risk of developing IR. The relationship on TG/HDL ratio and IR in various populations needs to be improved. Therefore, we investigated whether TG/HDL ratio was linked to IR in different groups in the United States after controlling for other covariates.

Methods

The current research was conducted in a cross-sectional manner. From 2009 to 2018, the National Health and Nutrition Examination Survey (NHANES) had a total of 49,696 participants, all of whom were Americans. The target-independent variable was TG/HDL ratio measured at baseline, and the dependent variable was IR. Additionally, the BMI, waist circumference, education, race, smoking, alcohol use, alanine transaminase, aspartate transaminase, and other covariates were also included in this analysis.

Results

The average age of the 10,132 participants was 48.6 ± 18.4 years, and approximately 4936 (48.7%) were males. After correcting for confounders, fully adjusted logistic regression revealed that TG/HDL ratio was correlated with IR (odds ratio = 1.51, 95% CI 1.42–1.59). A nonlinear interaction between TG/HDL ratio and IR was discovered, with a point of 1.06. The impact sizes and CIs on the left and right sides of the inflection point were 6.28 (4.66–8.45) and 1.69 (1.45–1.97), respectively. According to subgroup analysis, the correlation was strong in females, alcohol users, and diabetes patients. Meanwhile, the inverse pattern was observed in the aged, obese, high-income, and smoking populations.

Conclusion

In the American population, the TG/HDL ratio is positively associated with IR in a nonlinear interaction pattern.
Mezenchiminių kamieninių ir vėžinių ląstelių atsakas į teranostinių nanodalelių poveikį – ląstelių terapijos link
Authors:   , Dapkutė Dominyka
Published: October 2021

Mesenchymal stem cell and cancer cell response to treatment with theranostic nanoparticles – towards cell therapy
Prospects of state support of the development of the biomethane industry in Ukraine until 2040
Authors:   State Institution ", Galyna Trypolska ,   Institute for Economics and Forecasting, NAS of Ukraine"
Published: October 2021

The paper considers the prospects for the state support for the development of biomethane industry in Ukraine from 2025 to 2040. The main financial incentives for the use of biomass-derived energy are a special tariff for heat from sources other than natural gas, and a feed-in tariff (the auction price in the future). In the EU, biomethane production is gaining ground due to available financial incentives (premiums to the cost of natural gas, and feed-in premiums). The main obstacle to the large-scale spread of biogas (and, accordingly, biomethane) is the high cost of equipment. The amounts of state support for biogas production with its purification to biomethane and supply of the latter to the gas transmission and gas distribution networks under the conditions of biomethane production in the amounts provided by the draft Roadmap for Bioenergy Development in Ukraine until 2050 were assessed. While maintaining the price of natural gas at 2021 prices (EUR 0.24/m3), the need to subsidize biomethane production from 2025 to 2040 can reach EUR 0.263-3.5 billion, on average EUR 16.5-217 million per year. Infrastructure expenditures were not taken into account in the assessment. The possibility of electricity output from biomethane was not considered, as biogas refining to the quality of biomethane requires additional funds. The statutory auction price may be sufficient only for certain types of feedstock and for large biogas plants. The use of biomethane may be appropriate in the transport sector, as biomethane is an "advanced biofuel", and Ukraine already has a relatively extensive network of methane filling stations. Biomethane production in Ukraine will require state support, particularly in the form of direct subsidies to biomethane producers (in the form of premium to the price of natural gas), and in the form of a premium to the auction price. The use of biomethane will partially reduce dependence on imported fossil fuels, being also an important element in the decarbonization of sectors using natural gas, replacing up to 0.76 billion m3 of the latter in 2040, which is in line with the global leading decarbonization trends.
Estimation of probe measurements reliability in a supersonic flow of a four-component collisionless plasma
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Lazuchenkov D.N. , Lazuchenkov N.M. ,   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Published: October 2021

The aim of this work is to estimate the reliability of extracting the plasma electron density and temperature and ionic composition from the current-voltage (I-V) characteristic of an isolated probe system with cylindrical electrodes. An earlier proposed mathematical model of current collection by the probe system at positive bias potentials and an arbitrary ratio of the electrode areas is analyzed. The model is supplemented with a formula that determines, with an accuracy of several percent, the value of the bias potential at which the probe is under the plasma potential and the I-V characteristic splits into a transition and an electronic region. The analytical dependence of the bias potential on the plasma parameters and the ratio of the electrode areas made it possible to formalize the procedures for determining and assessing the reliability of the extracted plasma parameters using the regions of their strongest effect on the collected probe current. Parametric studies of the effect of the plasma parameters on the probe current were carried out for conditions close to measurements in the ionosphere. The paper demonstrates the feasibility of partitioning the sought-for plasma parameters into the regions of their strongest and weakest effect on the probe current in the range of the bias potentials considered. The problem of plasma parameter identification is formulated on the basis of a comparison of the probe current and the measured I-V characteristic in the L2 theoretical approximation. To each parameter there corresponds an objective function of its own, which differs in the domain of definition and the ratio of the electrode areas used in I-V characteristic measurements. Based on this formulation of the inverse problem in L2, estimates of the reliability of identification of the parameters of a plasma with two ion species are obtained depending on the errors of the model and probe measurements. The results obtained may be used in ionospheric plasma diagnostics.
Verification of a mathematical model for the solution of the Stefan problem using the mushy layer method
Authors:   Oles Honchar Dnipro National University, Yurkov R.S. , Knysh L.I. ,   Oles Honchar Dnipro National University
Published: October 2021

The use of solar energy has limitations due to its periodic availability: solar plants do not operate at night and are ineffective in dull weather. The solution of this problem involves the introduction of energy storage and duplication systems into the conversion loop. Among the energy storage systems, solid–liquid phase transition modules have significant energy, ecologic, and cost advantages. Physical processes in modules of this type are described by a system of non-stationary nonlinear partial differential equations with specific boundary conditions at the phase interface. The verification of a method for solving the Stefan problem for a heat-storage material is presented in this paper. The use of the mushy layer method made it possible to simplify the classical mathematical model of the Stefan problem by reducing it to a nonstationary heat conduction problem with an implicit heat source that takes into account the latent heat of transition. The phase transition is considered to occur in an intermediate zone determined by the solidus and liquidus temperatures rather than in in infinite region. To develop a Python code, use was made of an implicit computational scheme in which the solidus and liquidus temperatures remain constant and are determined in the course of numerical experiments. The physical model chosen for computer simulation and algorithm verification is the process of ice layer formation on a water surface at a constant ambient temperature. The numerical results obtained allow one to determine the temperature fields in the solid and the liquid phase and the position of the phase interface and calculate its advance speed. The algorithm developed was verified by analyzing the classical analytical solution of the Stefan problem for the one-dimensional case at a constant advance speed of the phase interface. The value of the verification coefficient was determined from a numerical solution of a nonlinear equation with the use of special built-in Python functions. Substituting the data for the physical model under consideration into the analytical solution and comparing them with the numerical simulation data obtained with the use of the mushy layer method shows that the results are in close agreement, thus demonstrating the correctness of the computer algorithm developed. These studies will allow one to adapt the Python code developed on the basis of the mushy layer method to the calculation of heat storage systems with a solid-liquid phase transition with account for the features of their geometry, the temperature level, and actual boundary conditions.