cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ASSESSING THE PREVALENCE OF LOW BACK PAIN AND ITS SEVERITY ALONG WITH THE IDENTIFICATION OF FACTORS THAT EXACERBATE THE RISK OF LBP AMONG UNIVERSITY STUDENTS: A CROSS-SECTIONAL STUDY
Creators: name: Farrukh Sobia
name: Amal Ramadan Abdalhalim
name: Nasir A. Ali
name: Ashraf Abdelmageid Ibrahim Khattab
Publisher: name: Zenodo
Year: 2023
Subjects: Low back pain (LBP), Lumbosacral pain, awareness, University students, prevalence, severity, knowledge, practice, Saudi Arabia

description: Abstract 
Low back pain is a debilitating condition that causes discomfort, anguish, and disability to the sufferer. The aim of the study was to better explore the prevalence of Low Back Pain, its severity, and identification of risk factors that exacerbate the menace of LBP among the students at Jazan University. The study used convenience non-probability sampling to conduct a cross-sectional study during the study period (10 April 2023 to May 2023). The data collection instrument was a self-designed questionnaire piloted and then disseminated in printed format to the students of Jazan University. Out of 200 students from Jazan University, 90 (45%) reported experiencing LBP. However, only 57 out of the 90 participants (63%) sought medical care for their condition. Regarding the type of LBP, 18.9% suffered from chronic, 63.3% from sub-acute, and 17.8% from acute LBP. Moreover, the intensity was moderate in 52.2% and severe in 21.1% of participants. Weight, psychological factors, and number of sleep hours/night could be the risk factors associated with LBP. 27.8% of participants were overweight among those who experienced LBP past year. Of the study population, 93% knew about the relationship between LBP and incorrect sitting posture. However, only 48% of the population practised taking short breaks during their studies and moving around. This study was a balanced one in terms of the study population as it included an almost equal proportion of students from allied health sciences and community colleges. There should be some informative campaigns that will make students more aware of the long-term side effects of LBP. Moreover, feasible interventions should be incorporated in colleges and workplaces to prevent LBP, injuries to the back due to chronic LBP, and to avoid mental health problems. However, the present study was conducted on university students, but studies should be performed on other sectors of society so that the actual prevalence of LBP can be estimated.
Narratives of Mental Health Professionals Supporting Trans, Gender Diverse and Gender Questioning Adults
Creators: name: Canvin, Lauren
Publisher: name: UH Research Archive
Year: 2020
Subjects: Gender Diverse
Gender Diversity
Transgender
LGBT
Mental Health
Mental Health Professionals
Qualitative
Narrative Analysis
Social Constructionism
Clinical Psychology

description: Trans, gender diverse and gender questioning people appear at a high risk of suffering from mental health difficulties, but often describe having negative experiences accessing both physical and mental healthcare in the UK. At the same time, health professionals have described feeling deskilled, and lacking confidence in their ability to support gender diverse people. There has been limited research exploring the experiences of mental health professionals who provide care for gender diverse people in mainstream mental health services, and even less in the UK. In this study, 7 mental health professionals from a range of disciplines took part in semi-structured narrative interviews via Skype, telephone, or in person. Accounts were analysed using Constructionist Narrative Analysis, to better understand the types of stories told, the positions taken by the participants, and the local, social and historical contexts of the narratives’ construction. The clinicians’ narratives were infused with wider societal narratives, which were drawn on and resisted in their stories. These included narratives of feeling deskilled, standing up to higher powers, separating different parts of a person, risk from men, and transwomen as dangerous. Implications for clinical practice have been suggested, such as providing open and non-judgmental space for discussion when training mental health professionals in gender diversity, and holding in mind the influence of powerful narratives when designing policies and making decisions about mental healthcare for gender diverse individuals.
The Historical Association Between Class Origins and Male Career Trajectories in UK Film Production
Creators: name: Atkinson, William James
Publisher: name: UH Research Archive
Year: 2020
Subjects: Class origins
Career trajectories
the Cultural and Creative Industries
Bourdieusian analysis
Oral History

description: The characterisation of the contemporary creative and cultural industries (CCIs) as ‘cool, creative and egalitarian’ (Gill, 2002) has been unpicked in recent literature (Grugulis and Stoyanova, 2012; Eikhof and Warhurst, 2013, Randle et al, 2015). A growing consensus suggests this is a meritocratic ideal rather than a reality, indicating CCIs are the domain of the white, male and middle-class (Randle, et al, 2015; O’Brien et al, 2016). The thesis is intended to inform a deeper historical understanding of some of the inequalities that persist in the contemporary CCIs. While some CCIs (radio, film and television) originated at the end of the 19th or the beginning of the 20th century, there is very little academic work which investigates the extent of egalitarianism or meritocracy in the film industry during much of the 20th century. The most robust historical study of class and employment in CCIs suggests that is likely that they have always been unequal, but points to a lack of historical data from which to evaluate the past (Banks, 2017). In order to contribute greater historical background to the sociological issue, this thesis therefore draws on an historical qualitative analysis of the film production careers of 37 men, from a mixture of working class origins (WCOs) and middle-class origins (MCOs) most of whose work began in the 1930s and ended in the 1970s. The primary source of data comprises oral history interviews from the British Entertainment History Project (BEHP) archive housed at the BFI Library. The research explores, specifically, work between 1927 and 1947 as the British Studio System emerged and many film occupations developed around the introduction of sound technology. The evidence suggests that certain structural arrangements, unique to the vertically integrated studios, provided some opportunities for working-class men in the past. However, these are shown to be exceptions that need to be qualified by a deeper understanding of the ‘fields’ (Bourdieu, 1984) that emerged around different film occupations within the studio system. To provide a deeper understanding of the ways in which career trajectories were mediated in different occupational settings, a Bourdieusian inspired, historical model of the association between class origins and male career destinations has been designed. Analysis of these careers highlights a long history of class-based inequalities that subsequently became embedded in employment practices and within many film production occupations and departments. Although careers during this period were enacted around different structural arrangements to those today, certain trends and associations between class background and opportunities were being shaped during the 1930s.
Reflexión y práctica en el aula: un análisis de la organización temporal. Estudio de caso de una profesora de ciencias de secundaria
Creators: name: Jiménez-Pérez, Roque
name: Vázquez Bernal, Bartolomé
name: Mellado Jiménez, Vicente
Publisher: name: Interacções
Year: 2008

description: En el artículo se describe un estudio de caso, centrado en el análisis de la organización temporal, de una profesora de educación secundaria sobre cómo la reflexión orientada a la acción y la propia acción interactúan, así como su influencia en el desarrollo profesional. De acuerdo con una hipótesis de complejidad, consideramos tres dimensiones diferentes y progresivas, una técnica, caracterizada por la eficiencia respecto al aprovechamiento del tiempo en el aula, una de naturaleza práctica, donde el factor tiempo se flexibiliza y otra dimensión más compleja denominada crítica, donde existe una intencionalidad en la dinamización en función de los distintos ritmos de aprendizaje del alumnado.  El estudio comprende dos niveles metodológicos, uno de naturaleza cualitativa y otro crítico. Los hallazgos sugieren que la profesora tiene algunas inconsistencias entre sus reflexiones y la práctica que desarrolla en el aula. Así, para la reflexión, ha iniciado el tránsito hacia posiciones más flexibles o adaptables respecto a la importancia que concede al tiempo. Sin embargo, en las intervenciones que desarrolla en el aula, muestran un carácter claramente preeminente al cumplimiento de los objetivos y de la programación.
description: Interacções, vol. 4 n.º 8 (2008): A prática profissional de professores: a centralidade da reflexão nos processos de supervisão.
Experiences of Workplace Bullying from the Perspectives of Trainee Clinical Psychologists: a Qualitative Study
Creators: name: Brown, Lan Rachel
Publisher: name: UH Research Archive
Year: 2020
Subjects: workplace bullying
clinical psychology
training
mental health
qualitative
thematic analysis

description: Research has identified that workplace bullying is a significant problem within healthcare, with healthcare trainees at particular risk. However, there are no studies of workplace bullying within clinical psychology or of trainee clinical psychologists. The aim of the current study was to explore the experiences of workplace bullying from the perspectives of trainee clinical psychologists. Fourteen trainee clinical psychologists were recruited from UK universities and participated in semi-structured telephone interviews. Data was analysed using thematic analysis within a critical realist epistemology. The analysis generated four main themes: workplace bullying ‘activating threat responses’, the process of trainee clinical psychologists ‘making sense of bullying’, ‘difficulties navigating power within the system’ when experiencing and reporting bullying, and ‘finding safety and support’ within and outside of work contexts. The results are considered in relation to existing research, as well as Compassion Focussed Therapy theory and the Power Threat Meaning framework. Clinical implications are recommended at an individual level, within the profession of clinical psychology and for the wider healthcare system.
Preconditions for Service Design in Colombia: Governance and Community Challenges
Creators: name: De Castro Abello, Marisabella
Publisher: name: UH Research Archive
Year: 2020
Subjects: service design
public sector
design process
vulnerable communities
complexity
contexts
challenges
preconditions
practitioners

description: Owing to the conditions of poverty in which 28% of its inhabitants live, the national government of Colombia provides services through its local administration in order to care for the needs of its vulnerable communities. However, providing services into deprived areas and to care for the needs of a complex group of users poses challenges for local administration. By comparing local public service experiences with documented public service design (SD) experiences worldwide, this project identified the obstacles that SD applications could have in contexts such as the one in the Atlantic Department of Colombia. Co-creation is one of the main principles within service design, as it is desirable for actors within the service system to engage in co-creation activities in order to determine their expectations and requirements in the early stages of the process. The aim of this research was to identify the ways in which the complexity of the relationship between the three key actors (government agents, providers and users) impacts on the co-creation of public services in the Atlantic Department and thus the development of service design projects. A case study was developed and data was gathered through a series of in-depth interviews with groups that represented the three key actors of a public service established by the Atlantic Department´s Government , aimed at enhancing the homes of vulnerable families. Due to the complexity of the relationship found among the three key actors of the public service within the Atlantic Department, this research concluded that there are two preconditions that should exist in a context, in order to enable co-creation between the three key actors and thus implement service design projects effectively. The first is a balanced relationship between government agents, providers and users, defined by equal levels of trust, empowerment and entitlement among them. The second is a design-led approach enabled by a senior leader from government, which motivates all of the actors involved to actively participate in co-creation activities. These results demonstrated the need to add a previous stage to the service design process, in which there needs to be an assessment of the context in order to appraise the relationship between the three key actors of the public service system. This research proposed the addition of a new Assessment stage and identifies the three possible outcomes that could arise from it, which would have a direct impact on the project´s budget, the resources needed to complete it or even its feasibility. This would have consequences for service designers, as it is necessary to assess the context in which they will work, before proposing budgets or schedules for service design´s commissioned projects.
On a class of power ideals
Creators: name: Backelin, Jörgen
name: Oneto, Alessandro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 13P99, 11P05, 13F20, 14C20

description: In this paper we study the class of power ideals generated by the $k^n$ forms $(x_0+ξ^{g_1}x_1+\ldots+ξ^{g_n}x_n)^{(k-1)d}$ where $ξ$ is a fixed primitive $k^{th}$-root of unity and $0\leq g_j\leq k-1$ for all $j$. For $k=2$, by using a $\mathbb{Z}_k^{n+1}$-grading on $\mathbb{C}[x_0,\ldots,x_n]$, we compute the Hilbert series of the associated quotient rings via a simple numerical algorithm. We also conjecture the extension for $k>2$. Via Macaulay duality, those power ideals are related to schemes of fat points with support on the $k^n$ points $[1:ξ^{g_1}:\ldots:ξ^{g_n}]$ in $\mathbb{P}^n$. We compute Hilbert series, Betti numbers and Gröbner basis for such $0$-dimensional schemes. This explicitly determines the Hilbert series of the power ideal for all $k$: that this agrees with our conjecture for $k>2$ is supported by several computer experiments.
A professora pesquisadora: contribuições dos interlocutores
Creators: name: Sudan, Daniela Cassia
name: Freitas, Denise De
Publisher: name: Interacções
Year: 2008

description: Este artigo é um olhar interpretativo sobre uma pesquisa de mestrado realizada por uma professora a respeito de sua própria prática, apoiada por dois grupos de interlocutores/as, um da escola e outro da academia. O desenvolvimento da pesquisa e da docência pôde avançar de maneira colaborativa, apoiado por uma metodologia de pesquisa que possibilitou incorporar tanto aspectos objetivos quanto subjetivos referentes à prática docente. O método foi construído com tomadas de dados em gravações audiovisuais das aulas da professora, elaboração de diário de bordo como parte da construção de sua autobiografia e registro e promoção de encontros com os dois grupos de interlocutores/as, constituídos por pós-graduandos, juntamente com a orientadora e professores do ensino médio. A passagem da posição de professora-reflexiva para a de professora-pesquisadora foi potencializada pelos interlocutores durante os encontros reflexivos, que a ajudaram a repensar sua relação com os alunos e a lidar com algumas de suas ilusões pedagógicas, desvelando, em parte, crenças e atitudes que implicitamente regulavam sua prática didática. Destacamos algumas condições que tornaram viável esse processo, como a aceitação da professora em se defrontar consigo mesma e aproximar-se da compreensão do seu próprio processo de pessoa aprendente, a revelação de aspectos subjetivos da professora (suas escolhas, visão de mundo, atitudes, dificuldades, angústias e sofrimentos) e também a interação com os grupos de interlocutores na academia, que contribuiu com novos pontos de vista na análise das questões apresentadas e na sustentação metodológica da pesquisa.
description: Interacções, vol. 4 n.º 8 (2008): A prática profissional de professores: a centralidade da reflexão nos processos de supervisão.
Structural Plasticity and Associative Memory in Balanced Neural Networks With Spike-Time Dependent Inhibitory Plasticity
Creators: name: Sinha, Ankur
Publisher: name: UH Research Archive
Year: 2020
Subjects: structural plasticity
balanced networks
cortical networks
synaptic plasticity
homeostatic plasticity
computational modelling

description: Several homeostatic mechanisms enable the brain to maintain desired levels of neuronal activity. One of these, homeostatic structural plasticity, has been reported to restore activity in networks disrupted by peripheral lesions by altering their neuronal connectivity. While multiple lesion experiments have studied the changes in neurite morphology that underlie modifications of synapses in these networks, the underlying mechanisms that drive these changes and the effects of the altered connectivity on network function are yet to be explained. Experimental evidence suggests that neuronal activity modulates neurite morphology and that it may stimulate neurites to selectively sprout or retract to restore network activity levels. In this study, a new spiking network model was developed to investigate these activity dependent growth regimes of neurites. Simulations of the model accurately reproduce network rewiring after peripheral lesions as reported in experiments. To ensure that these simulations closely resembled the behaviour of networks in the brain, a biologically realistic network model that exhibits low frequency Asynchronous Irregular (AI) activity as observed in cerebral cortex was deafferented. Furthermore, to study the functional effects of peripheral lesioning and subsequent network repair by homeostatic structural plasticity, associative memories were stored in the network and their recall performances before deafferentation and after, during the repair process, were compared. The simulation results indicate that the re-establishment of activity in neurons both within and outside the deprived region, the Lesion Projection Zone (LPZ), requires opposite activity dependent growth rules for excitatory and inhibitory post-synaptic elements. Analysis of these growth regimes indicates that they also contribute to the maintenance of activity levels in individual neurons. In this model, the directional formation of synapses that is observed in experiments requires that pre-synaptic excitatory and inhibitory elements also follow opposite growth rules. Furthermore, it was observed that the proposed model of homeostatic structural plasticity and the inhibitory synaptic plasticity mechanism that also balances the AI network are both necessary for successful rewiring. Next, even though average activity was restored to deprived neurons, these neurons did not retain their AI firing characteristics after repair. Finally, the recall performance of associative memories, which deteriorated after deafferentation, was not restored after network reorganisation.
Evaluation of RML Tabular Views with GTFS-Madrid-Bench
Creators: name: Arenas-Guerrero, Julián
Publisher: name: Zenodo
Year: 2022
Subjects: RDF
RML
data integration
knowledge graphs

description: Materials for the evaluation of RML tabular views with Morph-KGC against RML+FnO systems (RMLMapper and RocketRML)
Remnants, fermions' tunnelling and effects of quantum gravity
Creators: name: Chen, Deyou
name: Jiang, Qingquan
name: Wang, Peng
name: Yang, Haitang
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The remnants are investigated by fermions' tunnelling from a 4-dimensional charged dilatonic black hole and a 5-dimensional black string. Based on the generalized uncertainty principle, effects of quantum gravity are taken into account. The quantum numbers of the emitted fermions affects the Hawking temperatures. For the black hole, the quantum gravity correction slows down the increase of the temperature, which leads to the remnant left in the evaporation. For the black string, the existence of the remnant is determined by the quantum gravity correction and effects of the extra compact dimension.
description: 15 pages
title: Molybdenum isotope evidence for forearc mantle recycling at the Tongan subduction zone
Creators: name: Ahmad , Qasid
name: Wille , Martin
name: König , Stephan
name: Rosca , Carolina
name: Hensel , Angela
name: Pettke , Thomas
name: Hermann , Jörg
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2021

description: Molybdenum isotope ratios (δ98/95Mo) of marine sediments constitute an important tracer for paleoredox reconstructions of the ancient ocean. Due to its redox-sensitivity, significant mass-dependent Mo isotope fractionation is induced in present-day low temperature environments leading to distinct Mo concentrations and isotope compositions in different marine lithologies. Subduction and recycling of such fractionated material can thus be potentially traced in arc magmas. Indeed, Mo isotope variations are observed in mafic arc lavas that are attributed to reflect recycled crustal components, but open questions remain to what extent different subducted lithologies contribute to the Mo isotope signature of arc magmas. We present a comprehensive Mo isotope dataset covering input to output at the Tongan subduction zone, together with exhumed eclogite-facies oceanic crust and sediments from the Western Alps and Alpine Corsica. Pelagic Mn-rich metapelites and MORB-type eclogites reveal that Mo is largely lost during early subduction metamorphism. Moreover, rutile hosts most of the remaining isotopically light Mo in the slab at higher metamorphic degrees where it remains fixed during slab-dehydration processes at subarc depths. Thus, direct recycling of this fractionated material cannot account for the observed positive covariations of Mo/Ce and δ98/95Mo with fluid indices (e.g., Ba/Th) in Tongan arc lavas. We propose that Mo systematics in Tongan arc lavas are the result of shallow fluid-induced Mo mobilization and forearc mantle serpentinization during early stages of subduction. Subsequent mechanical transport and devolatiziation of this metasomatized forearc mantle material towards subarc regions is a plausible alternative process to recycle Mo and other metals.
The Impact of Clinical Application Protocols for Multiple Topical Products on Drug Delivery to the Skin
Creators: name: Beebeejaun, Mubinah Thara
Publisher: name: UH Research Archive
Year: 2020
Subjects: topical corticosteroid
emollient
skin permeation
dermatitis
application protocols

description: In the treatment of inflammatory skin conditions patients are often prescribed more than one topical product: a topical corticosteroid (TCS), an emollient and a topical antibiotic in cases of clinically infected skin. Despite widespread prescribing, there exists a remarkable lack of consensus between healthcare bodies on the optimum application protocol for the products, with recommendations made on the basis of clinical ‘expert’ opinion rather than evidence-based findings. Thus, the aim of this thesis was to evaluate the impact of clinical application protocols on the in vitro percutaneous absorption and skin retention of TCSs and topical antibiotics. A two component model was initially employed where the model TCSs (Elocon cream and Dermovate cream) were applied before or after six emollients, with a five or thirty minute interval. The Aron mix, a tailored extemporaneous therapy, was subsequently investigated to confirm whether the trends observed with TCSs and emollients were applicable to further complex mixtures of a topical antibiotic (Fucidin cream) and a TCS (Diprosone cream) substantially diluted in an emollient base (Diprobase cream). The findings demonstrated that applying multiple topical products to the skin can induce rapid formulation changes in situ or indeed in the extemporaneously prepared Aron mix, resulting in an altered performance of the medicinal products in a formulation specific manner. Mixing of the TCSs or topical antibiotic with an emollient dissimilar to the product base resulted in a multitude of effects including alterations in drug and solvent thermodynamic activities, rapid drug crystallisation and emollient excipients acting with penetration enhancing effects. Complementary drug stability investigations of the extemporaneous Aron mix did not support the typically recommended shelf life for the product (two weeks to one month), with significant decreases in drug content evident after seven days. In disagreement with clinical recommendations for TCSs and emollients, allowing up to thirty minutes between product applications was not sufficient to mitigate emollient effects on TCS drug delivery to the skin. Furthermore, application of the TCS after the emollient largely decreases drug delivery to the skin up to 4.4 fold compared to the TCS alone, findings which counter the clinical opinion that application of a TCS to well moisturised skin can increase drug delivery. Overall, the work presented in this thesis delivers a body of evidence previously unreported to suggest that applying multiple topical products to the skin at similar times may significantly alter the critical quality attributes of the product(s) to unpredictable extents and upon further investigation, these findings will support the advancement of conclusive clinical guidance.
Empirically Driven Design of Software Development Processes for Wireless Internet Services
Creators: name: Becker-Kornstaedt, Ulrike
name: Boggio, Daniela
name: Münch, Jürgen
name: Ocampo, Alexis
name: Palladino, Gino
Publisher: name: arXiv
Year: 2014
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The development of software for wireless services on the Internet is a challenging task due to the extreme time-to-market pressure, the newness of the application domain, and the quick evolution of the technical infrastructure. Nevertheless, developing software of a predetermined quality in a predictable fashion can only be achieved with systematic development processes and the use of engineering principles. Thus, systematic development processes for this domain are needed urgently. This article presents a method for the design of an adaptable software development process based on existing practices from related domains, industrial piloting, and expert knowledge. First results of the application of the method for the wireless Internet services domain are described. The benefit for the reader is twofold: the article describes a validated method on how to gain process knowledge for an upcoming field fast and incrementally. Furthermore, first results of the process design for the wireless Internet services domain are given.
description: 15 pages. The final publication is available at http://link.springer.com/chapter/10.1007%2F3-540-36209-6_30
CHANGES IN CHEMICAL, AMINO ACID AND LIPID COMPOSITION OF RAINBOW TROUT (ONCORHYNCHUS MYKISS) BY DIFFERENT FEEDING METHODS
Creators: name: Bobel, Irina
name: Pivtorak, Yaroslav
Publisher: name: Colloquium-journal
Year: 2020
Subjects: feeds of Aller Aqua firms
Biomar
balanced nutrition
biochemical parameters
morphometric evaluation
feed composition and nutrition

description: The selection of appropriate feed to rationally meet the needs of fish with all the necessary nutrients is of particular importance in the planned production of salmon fish products, the demand for which in human nutrition is constantly growing. Therefore, the nutrients contained in the feed should not only support the vital functions of the body, but also promote its growth and ensure the normal functioning of the whole organism. Scientific research was to determine the effect of different types of feed and their combinations on the morphometric parameters of trout age groups, changes in chemical, amino acid and lipid composition of tissues, which allowed us to draw conclusions about the effectiveness of feeding fish with the studied feed. The research is based on a comparative assessment of the impact of the above granular feeds on the overall functional state of fish growth. Granulated compound feeds from the manufacturer «Aller Aqua» and «Biomar» were used in feeding, formulations and diameter of granules according to the age and weight of the fish. The composition of the feed and nutrition corresponded to the period of fish farming. The daily feed rate was calculated in accordance with generally accepted methods in fish farming, taking into account water temperature and fish weight. Only healthy fish without visible damage were used for the studies, which were caught immediately before the studies and were not fed for 24 hours. These studies allowed to determine the main biochemical parameters using methods generally accepted in fish farming and to study the effect of the studied feeds on the functional state of growth, biochemical parameters. The conducted researches allow us to draw conclusions about direct connection between marketable qualities of rainbow trout and the consumed forages, their qualitative structure and nutritional value. In addition, we do not rule out the influence of abiotic factors, they were the same for all studied groups of trout, which is equally important, and along with rational feeding plays a key role in production.
Editorial - Formação de professores: necessidades e experiências de formação diversificadas
Creators: name: Luís, Helena
Publisher: name: Interacções
Year: 2008

description: O presente número da Revista Interacções reúne um conjunto de experiências de formação diversificadas no âmbito da formação de professores e de educadores de infância. Os estudos apresentados no âmbito da formação inicial e contínua permitem a análise de uma variedade de perspectivas e metodologias relevantes para os docentes e investigadores da área. Sobretudo, são reveladores do envolvimento dos investigadores em processos análogos de investigação sobre a suas práticas ou de práticas que se pretende implementar nos formandos ou futuros educadores e professores.
description: Interacções, vol. 4 n.º 9 (2008): Formação de professores: necessidades e experiências de formação diversificadas.
Ancillary Service to the Grid Using Intelligent Deferrable Loads
Creators: name: Meyn, Sean
name: Barooah, Prabir
name: Bušić, Ana
name: Chen, Yue
name: Ehren, Jordan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 93E20, 90C40,

description: Renewable energy sources such as wind and solar power have a high degree of unpredictability and time-variation, which makes balancing demand and supply challenging. One possible way to address this challenge is to harness the inherent flexibility in demand of many types of loads. Introduced in this paper is a technique for decentralized control for automated demand response that can be used by grid operators as ancillary service for maintaining demand-supply balance. A Markovian Decision Process (MDP) model is introduced for an individual load. A randomized control architecture is proposed, motivated by the need for decentralized decision making, and the need to avoid synchronization that can lead to large and detrimental spikes in demand. An aggregate model for a large number of loads is then developed by examining the mean field limit. A key innovation is an LTI-system approximation of the aggregate nonlinear model, with a scalar signal as the input and a measure of the aggregate demand as the output. This makes the approximation particularly convenient for control design at the grid level. The second half of the paper contains a detailed application of these results to a network of residential pools. Simulations are provided to illustrate the accuracy of the approximations and effectiveness of the proposed control approach.
Elasto-plastic response of reversibly crosslinked biopolymer bundles
Creators: name: Sadhukhan, Poulomi
name: Schuman, Ole
name: Heussinger, Claus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We study the response of F-actin bundles to driving forces through a simple analytical model. We consider two filaments connected by reversibly bound crosslinks and driven by an external force. Two failure modes under load can be defined. \textit{Brittle failure} is observed when crosslinks suddenly and collectively unbind, leading to catastrophic loss of bundle integrity. During \textit{ductile failure}, on the other hand, bundle integrity is maintained, however at the cost of crosslink reorganization and defect formation. We present phase diagrams for the onset of failure, highlighting the importance of the crosslink stiffness for these processes. Crossing the phase boundaries, force-deflection curves display (frequency-dependent) hysteresis loops, reflecting the first-order character of the failure processes. We evidence how the introduction of defects can lead to complex elasto-plastic relaxation processes, once the force is switched off. Depending on, both, the time-scale for defect motion as well as the crosslink stiffness, bundles can remain in a quasi-permanent plastically deformed state for a very long time.
description: 9 pages, 15 figures
title: Analysis of continent-scale geological maps
Creators: name: Friedrich , Anke M.
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2021

description: Geological maps are important products of geological work that display results of generations of field geologists’ work. Most original geological maps are generated and utilized at local scales. At regional scales, geological maps have gained in practical significance ever since William Smith’s 1815 geological map of England exemplified the powerful nature of mapping and correlating strata beyond local scales. However, by comparison, geological maps compiled at continental-scales appear to be of limited use outside of geological circles. Often, they are oversized which inhibits their practical use, so they decorate our geoscience hallways and lecture halls for their beautiful colors and their general esthetic appearance. Few outsiders can even read these maps. Their special color-coding, the multiple non-diverging color schemes and their complex legends further inhibit non-geologists from being able to recognize the enormous knowledge stored in these maps. I present an analysis of continent-scale geological maps by visualizing time not represented by the rock record (hiatus) and by examining the dimensions of hiatal surfaces at interregional scales. The maps yield great variability in dimensions and space-time patterns of hiatal surfaces, a behavior which is to be expected in light of interregional-scale processes induced by both, the plate and the plume mode of mantle convection. However, to test models of mantle convection rigorously, the temporal resolution of continent-scale maps must be increased to stages level, i.e., the scale at which tectonic processes take place.
Oral SARS-CoV-2 reduction by local treatment: A plasma technology application?
Creators: name: Von Woedtke, Thomas
name: Gabriel, Gülsah
name: Schaible, Ulrich E.
name: Bekeschus, Sander
Publisher: name: Weinheim : Wiley-VCH
Year: 2022
Subjects: subject: cold plasma
subject: dielectric barrier discharges (DBD)
subject: plasma jet
subject: plasma medicine
subject: SARS-CoV-2
subject: 530
subject: 540

description: The SARS-CoV-2 pandemic reemphasized the importance of and need for efficient hygiene and disinfection measures. The coronavirus' efficient spread capitalizes on its airborne transmission routes via virus aerosol release from human oral and nasopharyngeal cavities. Besides the upper respiratory tract, efficient viral replication has been described in the epithelium of these two body cavities. To this end, the idea emerged to employ plasma technology to locally reduce mucosal viral loads as an additional measure to reduce patient infectivity. We here outline conceptual ideas of such treatment concepts within what is known in the antiviral actions of plasma treatment so far.
A Performance Prediction Method Showcase: Ant Colony Optimization Scaling for a Particular Computer System
Creators: name: Pomelov, Sergey
name: Skopin, Igor
Publisher: name: figshare
Year: 2020
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Software development and its optimization is a resource-intensive process. Potentially successful algorithm variations and their combinations with given computing resources could be too numerous for the development or even a performance testing of a reliable for conclusion excerpt only. There are many cases when we cannot skip large possible algorithm variations and resources pairs set assessment but also we need to keep the costs at bay. According to this problem, we’re presenting a developed method of algorithms assessment, scaling and optimization. The method considers architectural peculiar features and is applicable prior to the code writing. Two approaches to parallel implementation of the ACO algorithm are distinguished in the work. Two computer systems with different architectures are used for demonstration. The application software is introduced. It is developed for algorithm and architecture interaction simulation and implementation of the method stages. The optimal ACO parallel modifications for corresponding architectures are disclosed with the help of the application. A computational experiment was conducted for checking the results obtained via models and simulations. Comparison of simulation estimates and experimental results argues that the simulation error is comparable to profiling errors in measurements. It is also comparable to deviations introduced by random factors in the algorithm performance on the testing stands.
The Superconducting Gravimeter CD-034 at Moxa Observatory: More than 20 Years of Scientific Experience and a Reanimation
Creators: name: Jahr, T.
name: Stolz, R.
Publisher: name: Basel : Birkhäuser
Year: 2022
Subjects: subject: environmental parameters
subject: gravity observation
subject: long-term time series
subject: SG-electronics
subject: Superconducting gravimeter
subject: tidal analysis
subject: 550

description: In this work, advanced methods and processing schemes for the analysis of data from a Superconducting Gravimeter (SG) will be introduced and their relevance on acquired data proved. The SG CD-034 was installed on Easter of 1999 in the Geodynamic Observatory Moxa of the Friedrich Schiller University Jena, Germany. Initially, the quality of the recorded data was examined, spectra for the detection of the parasitic modes were calculated and the calibration values for the two sensors were determined. Ever since very high-quality gravity data of this SG and most of the other worldwide SGs were made available through the storage archive of the Global Geodynamics Project (GGP later changed to IGETS, International Geodynamics and Earth Tide Service) for global scientific investigations at that time. SG’s such as the one in Moxa (Germany) still deliver significant scientific value for global gravitational field studies as well as for regional/local studies which will be shortly reviewed. Examples are the detection of polar motion, the influence of continental water loading in general and in particular river basin loads, the gravimetric effect of North Sea storm surges and the study of hydro-gravimetric signals, which could be compared with satellite observations and global hydraulic models. The long-term, low-noise operation of complex SG’s requires some effort on maintenance. In order to evaluate the correct operation of the SG, new data processing steps were introduced to assist in the analysis of the data in case of issues with the instrumentation. For example, in 2012/2013 and 2020/2021 severe interference in the gravimeter electronics in Moxa led to a significant loss of data. In both cases, however, the cause could be determined, and the corresponding electronic components renewed. Since July 2021, the SG in Moxa registers again with high data quality comparable or slightly better than before the incident. Initial tests and tidal analyses confirm the validity of the old calibration factors, and the authors now look forward to the re-established long-term recording with excitement and confidence.
Contributos para a história do grupo dos profissionais de educação de infância em Portugal
Creators: name: Cardona, Maria João
Publisher: name: Interacções
Year: 2008

description: Partindo da análise de algumas das questões subjacentes à história da educação de infância em Portugal, neste artigo é analisado o processo de profissionalização da/os educadora/es de infância. Nesta análise destaca-se o papel da formação, como factor determinante da história deste grupo profissional, sendo apresentadas as principais etapas desta história. Por fim é feita uma reflexão final sobre a relação entre formação e desenvolvimento profissional.
description: Interacções, vol. 4 n.º 9 (2008): Formação de professores: necessidades e experiências de formação diversificadas.
The Galaxy Evolution Explorer (GALEX). Its legacy of UV surveys, and science highlights
Creators: name: Bianchi, Luciana
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Galaxy Evolution Explorer (GALEX) imaged the sky in the Ultraviolet (UV) for almost a decade, delivering the first sky surveys at these wavelengths. Its database contains far-UV (FUV, $λ$$_{eff}$ $\sim$ 1528Å) and near-UV (NUV, $λ$$_{eff}$ $\sim$ 2310Å) images of most of the sky, including deep UV-mapping of extended galaxies, over 200 million source measurements, and more than 100,000 low-resolution UV spectra. The GALEX archive will remain a long-lasting resource for statistical studies of hot stellar objects, QSOs, star-forming galaxies, nebulae and the interstellar medium. It provides an unprecedented road-map for planning future UV instrumentation and follow-up observing programs in the UV and at other wavelengths. We review the characteristics of the GALEX data, and describe final catalogs and available tools, that facilitate future exploitation of this database. We also recall highlights from the science results uniquely enabled by GALEX data so far.
description: accepted for publication in ApSS
title: Kinetic and Mechanistic Investigation of the Atmospheric Oxidation of Selected Partially Oxygenated Hydrocarbons
Creators: name: Illmann, Jan Niklas
Publisher: name: Bergische Universität Wuppertal
Year: 2022

description: In the present work the mechanisms of the OH-initiated oxidation of 3-penten-2-one, 3-methyl-3-penten-2-one, and 4-methyl-3-penten-2-one as well as the ozonolysis reactions for a larger series of α,β-unsaturated ketones comprising methyl vinyl ketone, 3-penten-2-one, 3-methyl-3-penten-2-one, 4-methyl-3-penten-2-one, and ethyl vinyl ketone have been studied. The experiments were performed in two atmospheric simulation chambers at the University of Wuppertal, Germany, with a total volume of 480 L and 1080 L, respectively, using long-path FTIR spectroscopy. Selected experiments were supported by a PTR-ToF-MS instrument.
 The studies regarding the OH-mechanism were conducted under conditions, where virtually all peroxy radicals react with NOx (= NO + NO2). Since the net peroxyacetyl nitrate (PAN) formation depends on the NO2/NO ratio, where only a fraction of the formed acetyl peroxy radicals converts into PAN, a sum parameter PAN + CO2 was introduced in order to determine the yield of acetyl peroxy radicals as a measure of the first-generation PAN forming potential. Therefore, the experimental conditions were optimized to allow the quantification of CO2. Accordingly, it was found that for all investigated systems the OH reaction generated directly the formation of acetyl peroxy radicals with molar yields of 56 ± 14 % for 3-penten-2-one, 60 ± 7 % for 3-methyl-3-penten-2-one, and 24 ± 6 % for 4-methyl-3-penten-2-one, respectively. Further, it is demonstrated that nearly all other reaction products form also acetyl peroxy radicals in their further gas-phase oxidation.
 The kinetics of the ozonolysis reaction for a series of α,β-unsaturated carbonyls was analysed in terms of reactivity trends. In this respect, a semi-quantitative approach is designed for which the rate coefficient of the target species is related to the rate coefficient of a suitable core structure. This relative ratio was defined as a reactivity factor xr and used as a tool to predict ozonolysis rate coefficients for a series of α,β-unsaturated carbonyls. This concept amends the current point of view used to build structure-activity relationships models.
 The mechanisms of the ozonolysis reactions were investigated in the presence of sufficient amounts of carbon monoxide (CO) to scavenge OH radicals formed in the reaction system. In order to estimate the stabilized Criegee intermediate (sCI) yield and to suppress their secondary reactions, a number of experiments were performed, where SO2 was added to the reaction mixture. In this respect, it was observed that all investigated ketones form organic acids where the sum of the molar yields of acids formed accounts for up to 50 % of the ketone consumption. Possible formation mechanisms evolving from the experimental evidence are discussed for all explored reaction systems.