cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the renormalization of operator products: the scalar gluonic case
Creators: name: Zoller, Max F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we study the renormalization of the product of two operators $O_1=-\frac{1}{4} G^{μν}G_{μν}$ in QCD. An insertion of two such operators $O_1(x)O_1(0)$ into a Greens function produces divergent contact terms for $x\rightarrow 0$. In the course of the computation of the operator product expansion (OPE) of the correlator of two such operators $i\int\!\mathrm{d}^4x\,e^{iqx} T\{\,O_1(x)O_1(0)\}$ to three-loop order we discovered that divergent contact terms remain not only in the leading Wilson coefficient $C_0$, which is just the VEV of the correlator, but also in the Wilson coefficient $C_1$ in front of $O_1$. As this correlator plays an important role for example in QCD sum rules a full understanding of its renormalization is desireable. This work explains how the divergences encountered in higher orders of an OPE of this correlator should be absorbed in counterterms and derives an additive renormalization constant for $C_1$ from first principles and to all orders in perturnbation theory. The method to derive the renormalization of this operator product is an extension of the ideas of a paper by Spiridonov and can be generalized to other cases.
description: v2: this is the version accepted by JHEP; more detailed discussion of phenomenological applications
Nuove prospettive tecnologiche a supporto della valutazione per l’apprendimento permanente: il caso degli Open Digital Badge
Creators: name: Raffaghelli, Juliana E.
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: Com’è noto, la relazione tra valutazione e tecnologie è rimasta legata a concezioni pedagogiche tradizionali, e cioè alla valutazione all’interno di uno specifico percorso di apprendimento formale. Meno esplorata è invece la relazione tra tecnologie e valutazione degli apprendimenti informali e non formali, attraverso percorsi di apprendimento permanente unici e personalizzati. Gli emergenti Open Digital Badge (ODB), che introdurremo in questo articolo, si configurano come soluzione tecnologica rispondente alla complessa problematica della valutazione dell’apprendimento e per l’apprendimento. Analizzeremo la definizione e le specifiche tecniche degli ODB nonché due brevi studi di caso che esemplificano modus operandi e impatto. Da quanto esaminato emerge che, sebbene il valore dei badge sia ancora a livello potenziale, formulato sul piano concettuale e supportato da soluzioni tecnologiche per l’effettiva implementazione, molto resta ancora da esplorare dal punto di vista della ricerca educativa e sperimentazione didattica.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
Improved ChIP-chip analysis by a mixture model approach
Creators: name: Sun, Wei
name: Davis, Ian
name: Patel, Mukund
Publisher: name: BioMed Central Ltd
Year: 2009

description: Abstract Background Microarray analysis of immunoprecipitated chromatin (ChIP-chip) has evolved from a novel technique to a standard approach for the systematic study of protein-DNA interactions. In ChIP-chip, sites of protein-DNA interactions are identified by signals from the hybridization of selected DNA to tiled oligomers and are graphically represented as peaks. Most existing methods were designed for the identification of relatively sparse peaks, in the presence of replicates. Results We propose a data normalization method and a statistical method for peak identification from ChIP-chip data based on a mixture model approach. In contrast to many existing methods, including methods that also employ mixture model approaches, our method is more flexible by imposing less restrictive assumptions and allowing a relatively large proportion of peak regions. In addition, our method does not require experimental replicates and is computationally efficient. We compared the performance of our method with several representative existing methods on three datasets, including a spike-in dataset. These comparisons demonstrate that our approach is more robust and has comparable or higher power than the other methods, especially in the context of abundant peak regions. Conclusion Our data normalization and peak detection methods have improved performance to detect peak regions in ChIP-chip data.
Revista Interfaces: Famílias e Políticas Publicas – RIFPP: POLÍTICAS DE PROTEÇÃO SOCIAL PARA FAMILIAS NA AMÉRICA LATINA, EUROPA E CARIBE. Volume 3.
Creators: name: ACOSTA, ANA ROJAS
name: GAMBARDELLA, ALICE DIANEZI
name: QUINTANAR, ANA ELENA SCHALK
name: BERNAL, ÁNGELA ROCÍO
name: MONTEIRO, ANTONIO MIGUEL VIEIRA
name: OLAYA, EUCARIS
name: BRAGA, IRACILDA ALVES
name: CHANG, JACK ALBERT NAVARRO
name: RAMOS, LUIS ALBERTO CHÁVEZ
name: CARVALHO, MARIA DO CARMO BRANT DE
name: SILVA, MARIA DO ROSARIO DE FATIMA E
name: CONSERVA, MARINALVA
name: SALIVE, MARÍA CLARA
name: BENAVIDES, MARIELA TERESA PARIONA
name: CARNEIRO, MAURICÉIA LIGIA NEVES DA COSTA
name: TROTTA, MIGUEL EDGARDO VICENTE
name: JIMÉNEZ, MOISÉS GUSTAVO GARCÍA
name: PAES, NEIR ANTUNES
name: AZEVEDO, RAQUEL DE FÁTIMA FERREIRA
name: VILLAMIZAR, YOLANDA PUYANA
Publisher: name: Zenodo
Year: 2023
Subjects: FAMILIAS, POLITICAS DE PROTEÇAO SOCIAL, VULNERABILIDADE, PANDEMIA

description: O terceiro volume da Revista Interfaces: Famílias e Políticas Públicas - RIPFPP apresenta uma variedade de temas relevantes relacionados à proteção social das famílias na América Latina, Europa e Caribe. Esta coletânea, disponível em português e espanhol, reúne estudos realizados durante os Encontros de Pesquisadores promovidos pelo Núcleo de Estudos, Pesquisa e Extensão em Famílias e Políticas Públicas - NEF/UNIFESP ao longo de 2022. Composto por doze artigos, o primeiro conjunto aborda as políticas de proteção social nessas regiões. Os temas incluem questões étnicas, raciais e de gênero diante das alterações climáticas, o cotidiano da assistência social em tempos de pandemia e pós-pandemia, reflexões sobre o desafio significativo da aversão aos pobres no Brasil, a influência do m-learning como ferramenta de aprendizagem durante a pandemia de Covid-19, envelhecimento e políticas públicas no Brasil, os desafios enfrentados pelos municípios de pequeno porte durante a pandemia, segurança alimentar e desenvolvimento urbano, as violências baseadas no gênero e as táticas de resistência entre estudantes universitários, a produção técnico-científica de estudos em redes interinstitucionais de pesquisa, desenvolvimento urbano integral e policêntrico, educação e pesquisa abertas na América Latina e no Caribe. A segunda parte do volume apresenta prática interventiva, incluindo estudo sobre a formação do assistente social em um curso de graduação a distância e reflexões sobre a perspectiva docente nesse contexto. O objetivo deste volume é contribuir para a reflexão e aprofundamento dos temas abordados, além de fornecer subsídios para práticas e políticas públicas voltadas para a proteção social das famílias nessas regiões.
Bulk Topological Proximity Effect
Creators: name: Hsieh, Timothy H.
name: Ishizuka, Hiroaki
name: Balents, Leon
name: Hughes, Taylor L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Existing proximity effects stem from systems with a local order parameter, such as a local magnetic moment or a local superconducting pairing amplitude. Here, we demonstrate that despite lacking a local order parameter, topological phases also may give rise to a proximity effect of a distinctively inverted nature. We focus on a general construction in which a topological phase is extensively coupled to a second system, and we argue that in many cases, the inverse topological order will be induced on the second system. To support our arguments, we rigorously establish this "bulk topological proximity effect" for all gapped free fermion topological phases and representative integrable models of interacting topological phases. We present a terrace construction which illustrates the phenomenological consequences of this proximity effect. Finally, we discuss generalizations beyond our framework, including how intrinsic topological order may also exhibit this effect.
description: 5 pages, 3 figures
L’e-tutor in Italia: una rassegna della letteratura scientifica
Creators: name: Mattana, Veronica
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: Il lavoro propone una rassegna della letteratura scientifica italiana, condotta analizzando i contributi apparsi su riviste specializzate o su atti di convegni/congressi nel campo dell’apprendimento con le ICT. Sono stati selezionati dieci lavori, pubblicati tra il 2006 e il 2013, che hanno trattato la figura dell’e-tutor nei diversi contesti formativi italiani (università, scuola, Pubblica Amministrazione), e che hanno fornito evidenze empiriche su ruoli, funzioni e competenze, nonché sulle modalità di selezione, formazione e valutazione. Le analisi condotte sono state sia di tipo quantitativo (mediante questionari e successive elaborazioni statistiche) sia qualitative (analisi del contenuto dei messaggi su forum di discussione). Risultano ancora pochi i contributi scientifici sull’e-tutor, a causa, come sottolineato da diversi autori, della difficoltà di realizzazione di ricerche empiriche o sperimentali. Vengono discussi limiti e alcuni spunti per le future ricerche.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
List randomization for eliciting HIV status and sexual behaviors in rural KwaZulu-Natal, South Africa: a randomized experiment using known true values for validation
Creators: name: Pillay, Deenan
name: Bärnighausen, Till
name: Mutevedzi, Tinofa
name: Cohen, Jessica
name: Haber, Noah
name: Gareta, Dickman
name: Herbst, Kobus
name: Tanser, Frank
name: Fink, Günther
name: Harling, Guy
Publisher: name: BioMed Central
Year: 2018

description: Abstract
                Background
                List randomization (LR), a survey method intended to mitigate biases related to sensitive true/false questions, has received recent attention from researchers. However, tests of its validity are limited, with no study comparing LR-elicited results with individually known truths. We conducted a test of LR for HIV-related responses in a high HIV prevalence setting in KwaZulu-Natal. By using researcher-known HIV serostatus and HIV test refusal data, we were able to assess how LR and direct questionnaires perform against individual known truth.
                Methods
                Participants were recruited from the participation list from the 2016 round of the Africa Health Research Institute demographic surveillance system, oversampling individuals who were HIV positive. Participants were randomized to two study arms. In Arm A, participants were presented five true/false statements, one of which was the sensitive item, the others non-sensitive. Participants were then asked how many of the five statements they believed were true. In Arm B, participants were asked about each statement individually. LR estimates used data from both arms, while direct estimates were generated from Arm B alone. We compared elicited responses to HIV testing and serostatus data collected through the demographic surveillance system.
                Results
                We enrolled 483 participants, 262 (54%) were randomly assigned to Arm A, and 221 (46%) to Arm B. LR estimated 56% (95% CI: 40 to 72%) of the population to be HIV-negative, compared to 47% (95% CI: 39 to 54%) using direct estimates; the population-estimate of the true value was 32% (95% CI: 28 to 36%). LR estimates yielded HIV test refusal percentages of 55% (95% CI: 37 to 73%) compared to 13% (95% CI: 8 to 17%) by direct estimation, and 15% (95% CI: 12 to 18%) based on observed past behavior.
                Conclusions
                In this context, LR performed poorly when compared to known truth, and did not improve estimates over direct questioning methods when comparing with known truth. These results may reflect difficulties in implementation or comprehension of the LR approach, which is inherently complex. Adjustments to delivery procedures may improve LR’s usefulness. Further investigation of the cognitive processes of participants in answering LR surveys is warranted.
MOOC, OER e l’approccio “flipped classroom”: due case study di transizione in ambito scolastico e aziendale
Creators: name: Sancassani, Susanna
name: Casiraghi, Daniela
name: Corti, Paola
name: Trentinaglia, Nicoletta
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: La portata innovativa dei MOOC non esaurisce la sua rilevanza nell’ambito dei processi di apprendimento che si svolgono in rete. Uno dei principali obiettivi che ha mosso grandi università quali Stanford o MIT ad impegnarsi prima nello sviluppo di OER (Open Educational Resources) e poi nei MOOC, è stato quello di trovare modalità che consentissero di migliorare la qualità didattica face-to-face riducendone i costi. In questa prospettiva i materiali didattici online stanno ora consentendo di sperimentare la metodologia delle “flipped classroom” in cui le dinamiche didattiche in aula sono basate su un’elevata interattività con i docenti e tra i pari. Nell’articolo si analizzano due progetti inseriti in differenti contesti, quello scolastico e quello aziendale, basati su un approccio “flipped”. I risultati in termini di efficacia appaiono confortanti, ma ancora più promettenti sono i riflessi sulla sostenibilità dei processi e sui livelli di motivazione di docenti e studenti.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
How much OOO in your MOOC?
Creators: name: Kuna, Maja
name: Parrish, Patrick
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: Il formato MOOC (Massive Open Online Course) continua a creare numerose riflessioni, soprattutto in merito alla sua capacità di raggiungere tanti utenti contemporaneamente e all’uso innovativo delle nuove tecnologie. Questo articolo esamina il rapporto di simultanea attrazione e repulsione che la comunità educativa attualmente rivela verso i MOOC, un’ambivalenza che sembra sorgere a causa della qualità di apertura (openness). Le recenti implementazioni di MOOC divergono dalla radice connettivista. Un modo per comprendere le loro differenze può essere tramite l’osservazione di come vengano applicati i sette tipi di apertura. L’openness è ritenuta la dimensione più significativa perché è quella che definisce meglio la qualità dei MOOC, anche se, al contempo, è quella che crea le maggiori sfide. Questo articolo esplora le tendenze attuali nelle offerte di MOOC, mettendo in discussione il valore pedagogico delle nuove implementazioni, ma anche apprezzando la loro rapida crescita e il loro potenziale impatto. L’articolo suggerisce che il formato MOOC debba essere adottato con un cosciente e deliberato intento di utilizzare l’apertura che offre, e non semplicemente perché aiuta a raggiungere un numero decisamente più ampio di studenti.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
Repetitive and self-injurious behaviors: associations with caudate volume in autism and fragile X syndrome
Creators: name: Wolff, Jason J
name: Hazlett, Heather
name: Piven, Joseph
Publisher: name: BioMed Central Ltd
Year: 2013

description: Abstract Background Following from previous work suggesting that neurobehavioral features distinguish fragile X and idiopathic variants of autism, we investigated the relationships between four forms of repetitive behavior (stereotypy, self-injury, compulsivity, ritual behavior) and caudate nuclei volume in two groups: boys with fragile X syndrome, a subset of whom met criteria for autism, and a comparison group of boys with idiopathic autism. Methods Bilateral caudate nuclei volumes were measured in boys aged 3 to 6 years with fragile X syndrome (n = 41), the subset of boys with fragile X syndrome and autism (n = 16), and boys with idiopathic autism (n = 30). Repetitive behaviors were measured using the Repetitive Behavior Scales-Revised. Results For boys with idiopathic autism, left caudate volume was modestly associated with self-injury, while both compulsive and ritual behaviors showed significant positive correlations with bilateral caudate nuclei volumes, replicating previous results. For boys with fragile X syndrome, there was no such association between caudate volume and compulsive behaviors. However, we did identify significant positive correlations between self-injury total scores and number of self-injury topographies with bilateral caudate nuclei volumes. Conclusions These findings suggest a specific role for the caudate nucleus in the early pathogenesis of self-injurious behavior associated with both idiopathic autism and fragile X syndrome. Results further indicate that the caudate may be differentially associated with compulsive behavior, highlighting the utility of isolating discrete brain-behavior associations within and between subtypes of autism spectrum disorder.
Open Educational Resources: strategie di ricerca e selezione
Creators: name: Vivanet, Giuliano
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: La diffusione di una cultura open in ambito educativo si sta manifestando in rete con la sempre crescente disponibilità di risorse e pratiche didattiche aperte, in altre parole condivise liberamente, senza restrizioni sul loro uso e riuso. In questo contributo, dopo una breve introduzione al tema delle competenze di information literacy richieste a studenti e insegnanti nell’era digitale, si presentano risorse e strategie per la ricerca e selezione di open educational resources e se ne discutono le criticità.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
MOOC Trasparenza e anticorruzione
Creators: name: Testaceni, Graziella
name: Castro, Maria De Los Angeles
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: Il corso “Trasparenza e Anticorruzione” rivolto ai dipendenti della Pubblica Amministrazione, studenti e ricercatori è stato realizzato dal CSI (Consorzio per il Sistema Informativo) Piemonte in collaborazione con l’Università di Torino, l’ANCI Piemonte e il Formez PA nel periodo novembre-dicembre 2013. L’obiettivo del progetto di ricerca era sperimentare da un lato una nuova metodologia didattica, il MOOC appunto, caratterizzata dalla completa erogazione online e gratuità del corso, un’elevata qualità dell’offerta formativa e un alto livello di interazione, adattato al contesto della formazione del personale della Pubblica Amministrazione italiana; dall’altro lato offrire risposte sul tema della trasparenza e del contrasto alla corruzione, mettendo a disposizione uno spazio di confronto e condivisione di esperienze tra i partecipanti. Il corso, promosso anche attraverso una campagna sui principali social network, ha riscontrato un’alta partecipazione e un elevato gradimento.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
Using the multiple mini interview as an assessment strategy within the first year of a health professions curriculum
Creators: name: Cox, Wendy
name: Zeeman, Jacqueline M
name: McLaughlin, Jacqueline E
name: Wolcott, Michael D
Publisher: name: BioMed Central
Year: 2018

description: Abstract Background The multiple mini-interview (MMI) is a common assessment strategy used in student selection. The MMI as an assessment strategy within a health professions curriculum, however, has not been previously studied. This study describes the integration of a 5-station MMI as part of an end-of-year capstone following the first year of a health professions curriculum. The goal of the capstone MMI was to assess professional competencies of students and to offer formative feedback to prepare students for their upcoming clinical practice experiences. The purpose of this study was to evaluate the psychometric properties of an MMI integrated into a health professions curriculum. Methods Five capstone MMI stations were designed to each evaluate a single construct assessed by one rater. A principal component analysis (PCA) was used to evaluate the structure of the model and its ability to distinguish 5 separate constructs. A Multifaceted Rasch Measurement (MFRM) model assessed student performance and estimated the sources of measurement error attributed to 3 facets: student ability, rater stringency, and station difficulty. At the conclusion, students were surveyed about the capstone MMI experience. Results The PCA confirmed the MMI reliably assessed 5 unique constructs and performance on each station was not strongly correlated with one another. The 3-facet MFRM analysis explained 58.79% of the total variance in student scores. Specifically, 29.98% of the variance reflected student ability, 20.25% reflected rater stringency, and 8.56% reflected station difficulty. Overall, the data demonstrated an acceptable fit to the MFRM model. The majority of students agreed the MMI allowed them to effectively demonstrate their communication (80.82%), critical thinking (78.77%), and collaboration skills (70.55%). Conclusions The MMI can be a valuable assessment strategy of professional competence within a health professions curriculum. These findings suggest the MMI is well-received by students and can produce reliable results. Future research should explore the impact of using the MMI as a strategy to monitor longitudinal competency development and inform feedback approaches.
E-book per la formazione. L’esperienza del Master “Le nuove competenze digitali: open education, social e mobile learning”
Creators: name: Menichetti, Laura
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: Il Master “Le nuove competenze digitali: open education, social e mobile learning”, organizzato dall’Università degli Studi di Firenze, si propone di sviluppare competenze relative alla progettazione, alla realizzazione, alla erogazione di interventi formativi sostenuti dalle nuove tecnologie e in linea con i modelli istruttivi maggiormente condivisi per un apprendimento efficace. I corsisti completano il Master con la realizzazione di un prodotto ad uso didattico, che può consistere in un corso o in un e-book. Quasi metà dei corsisti che hanno partecipato all’edizione conclusasi a marzo 2014 hanno prodotto degli e-book, che sono stati utilizzati nella formazione degli adulti o nella scuola. Il presente contributo intende presentare una rassegna degli e-book che le autrici e gli autori hanno acconsentito a rendere visibili.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
Numerical Methods for Finding Stationary Gravitational Solutions
Creators: name: Dias, Oscar J. C.
name: Santos, Jorge E.
name: Way, Benson
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The wide applications of higher dimensional gravity and gauge/gravity duality have fuelled the search for new stationary solutions of the Einstein equation (possibly coupled to matter). In this topical review, we explain the mathematical foundations and give a practical guide for the numerical solution of gravitational boundary value problems. We present these methods by way of example: resolving asymptotically flat black rings, singly-spinning lumpy black holes in anti-de Sitter (AdS), and the Gregory-Laflamme zero modes of small rotating black holes in AdS$_5\times S^5$. We also include several tools and tricks that have been useful throughout the literature.
description: Invited Topical Review for Classical and Quantum Gravity, 153 pages, 11 figures
Returning to work at school during the COVID -19 pandemic, is it stressful for school teachers: Assessment of immediate psychological effects- a cross-sectional study
Creators: name: Kamath, Sowmini
name: Mithra, Prasanna
name: K, Jayashree
name: Kulkarni, Vaman
name: Joshi, Jayateertha
name: Kamath, Padmanabh
name: Unnikrishnan, Bhaskaran
name: Pai, Keshava
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: School based cross sectional study
Triplet proximity effect in superconducting heterostructures with a half-metallic layer
Creators: name: Mironov, S.
name: Buzdin, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present the Usadel theory describing the superconducting proximity effect in heterostructures with a half-metallic layer. It is shown that the full spin polarization inside the half-metals gives rise to the giant triplet spin-valve effect in superconductor (S) - ferromagnet (F) - half-metal (HM) trilayers as well as to the $φ_0$-junction formation in the S/F/HM/F/S systems. In addition, we consider the exactly solvable model of the S/F/HM trilayers of atomic thickness and demonstrate that it reproduces the main features of the spin-valve effect found within the Usadel approach. Our results are shown to be in a qualitative agreement with the recent experimental data on the spin-valve effect in ${\rm MoGe/Cu/Ni/CrO_2}$ hybrids [A. Singh et al., Phys. Rev. X 5, 021019 (2015)].
description: 10 pages, 5 figures
EPUB Editor. Autoproduzione di e-book come esperienza didattica.
Creators: name: Leonetti, Francesco
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: La sostanziale differenza tra book ed e-book è data dal fatto che nel libro cartaceo (book), il contenuto e il “dispositivo di lettura” sono integrati, mentre l’e-book distingue il contenuto (file) dal dispositivo utilizzato per fruirlo. Oltre a ciò, la tecnologia digitale consente di esplorare forme espressive del tutto inedite rispetto alla carta, che non sono date solo dalla multimedialità e interattività, ma anche da aspetti funzionali dei dispositivi digitali e dello “status” digitale del contenuto per molti versi non ancora del tutto attuati ed implementati. Il formato EPUB, meglio di altri, consente di applicare queste peculiarità ad un e-book e di svilupparlo in modo semplice ed immediato tramite uno degli strumenti autore disponibili sul mercato, quale, ad esempio, EPUB Editor, un tool online particolarmente utilizzato in contesto scolastico e didattico, di cui vengono dati esempi di lavori realizzati.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
Maria Ranieri, Le insidie dell’ovvio. Tecnologie educative e critica della retorica tecnocentrica. Pisa: ETS (2011).
Creators: name: Micheletta, Silvia
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
Understanding Quitting Intentions of Novice Employees in Technical Occupations: A Mixed-Methods Study
Creators: name: Dorn, Fabiola
name: Quadflieg, Susanne
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: In many technical professions, employers struggle to retain workers during their initial years of full-time employment. To better understand this phenomenon, behavioural and social scientists have begun to study novice employees’ cognitions about withdrawing from a technical job. This work has identified a range of predictors of job withdrawal cognitions, but it remains unclear whether these predictors affect (i) organisational and professional withdrawal cognitions, (ii) across different time points of employees’ initial year of full-time employment, and (iii) irrespective of heir demographic, educational and/or training background. The current study follows up on these questions.
Exact solution of Chern-Simons-matter matrix models with characteristic/orthogonal polynomials
Creators: name: Tierz, Miguel
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We solve for finite $N$ the matrix model of supersymmetric $U(N)$ Chern-Simons theory coupled to $N_{f}$ fundamental and $N_{f}$ anti-fundamental chiral multiplets of $R$-charge $1/2$ and of mass $m$, by identifying it with an average of inverse characteristic polynomials in a Stieltjes-Wigert ensemble. This requires the computation of the Cauchy transform of the Stieltjes-Wigert polynomials, which we carry out, finding a relationship with Mordell integrals, and hence with previous analytical results on the matrix model. The semiclassical limit of the model is expressed, for arbitrary $N_{f},$ in terms of a single Hermite polynomial. This result also holds for more general matter content, involving matrix models with double-sine functions.
description: 17 pages, v2: a paragraph added; final, published, version
Bed net ownership, use, and perceptions among women seeking antenatal care in Kinshasa, Democratic Republic of the Congo (DRC): opportunities for improved maternal and child health
Creators: name: Pettifor, Audrey
name: Taylor, Eboni
name: Meshnick, Steven R.
name: Duvall, Sandra
name: Behets, Frieda
Publisher: name: BioMed Central Ltd
Year: 2008

description: Abstract: Background: To describe malaria knowledge, attitudes toward malaria and bed net use, levels of ownership and use of bed nets, and factors associated with ownership and use among pregnant women attending their first antenatal care (ANC) visit in Kinshasa, DRC. Methods: Women attending their first ANC visit at one maternity in Kinshasa were recruited to take part in a study where they were given free insecticide treated bed nets (ITNs) and then followed up at delivery and 6 months post delivery to assess ITN use. This study describes the baseline levels of bed net ownership and use, attitudes towards net use and factors associated with net use Results: Among 351 women interviewed at baseline, 115 (33%) already owned a bed net and 86 (25%) reported to have slept under the net the previous night. Cost was reported as the reason for not owning a net by 48% of the 236 women who did not own one. In multivariable analyses, women who had secondary school or higher education were 3.4 times more likely to own a net (95% CI 1.6–7.3) and 2.8 times more likely to have used a net (95% CI 1.3–6.0) compared to women with less education Conclusion: Distribution of ITNs in antenatal clinics in this setting is needed and feasible. The potential for ITN use by this target population is high.
The role of star-formation and AGN in dust heating of z = 0.3-2.8 galaxies - I. Evolution with redshift and luminosity
Creators: name: Kirkpatrick, Allison
name: Pope, Alexandra
name: Sajina, Anna
name: Roebuck, Eric
name: Yan, Lin
name: Armus, Lee
name: Diaz-Santos, Tanio
name: Stierwalt, Sabrina
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We characterize infrared spectral energy distributions of 343 (Ultra) Luminous Infrared Galaxies from $z=0.3-2.8$. We diagnose the presence of an AGN by decomposing individual Spitzer mid-IR spectroscopy into emission from star-formation and an AGN-powered continuum; we classify sources as star-forming galaxies (SFGs), AGN, or composites. Composites comprise 30% of our sample and are prevalent at faint and bright $S_{24}$, making them an important source of IR AGN emission. We combine spectroscopy with multiwavelength photometry, including Herschel imaging, to create three libraries of publicly available templates (2-1000 $μ$m). We fit the far-IR emission using a two temperature modified blackbody to measure cold and warm dust temperatures ($T_c$ and $T_w$). We find that $T_c$ does not depend on mid-IR classification, while $T_w$ shows a notable increase as the AGN grows more luminous. We measure a quadratic relationship between mid-IR AGN emission and total AGN contribution to $L_{\rm IR}$. AGN, composites, and SFGs separate in $S_8/S_{3.6}$ and $S_{250}/S_{24}$, providing a useful diagnostic for estimating relative amounts of these sources. We estimate that >40% of IR selected samples host an AGN, even at faint selection thresholds ($S_{24}$>100 $μ$Jy). Our decomposition technique and color diagnostics are relevant given upcoming observations with the James Webb Space Telescope.
description: Accepted for publication in ApJ. Publicly available templates are at http://www.astro.umass.edu/~pope/Kirkpatrick2015. Due to size limitations, Appendix B could not be included in the arXiv submission
Warm Jupiters are less lonely than hot Jupiters: close neighbours
Creators: name: Huang, Chelsea X.
name: Wu, Yanqin
name: Triaud, Amaury H. M. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Exploiting the Kepler transit data, we uncover a dramatic distinction in the prevalence of sub-Jovian companions, between systems that contain hot Jupiters (periods inward of 10 days) and those that host warm Jupiters (periods between 10 and 200 days). Hot Jupiters, with the singular exception of WASP-47b, do not have any detectable inner or outer planetary companions (with periods inward of 50 days and sizes down to $2 R_{\rm Earth}$). Restricting ourselves to inner companions, our limits reach down to $1 R_{\rm Earth}$. In stark contrast, half of the warm Jupiters are closely flanked by small companions. Statistically, the companion fractions for hot and warm Jupiters are mutually exclusive, particularly in regard to inner companions. The high companion fraction of warm Jupiters also yields clues to their formation. The warm Jupiters that have close-by siblings should have low orbital eccentricities and low mutual inclinations. The orbital configurations of these systems are reminiscent of those of the low-mass, close-in planetary systems abundantly discovered by the Kepler mission. This, and other arguments, lead us to propose that these warm Jupiters are formed in-situ. There are indications that there may be a second population of warm Jupiters with different characteristics. In this picture, WASP-47b could be regarded as the extending tail of the in-situ warm Jupiters into the hot Jupiter region, and does not represent the generic formation route for hot Jupiters.
description: 12 pages, 7 figures, accepted by ApJ
Peter Suber, Open Access. Cambridge, London: MIT Press (2012).
Creators: name: Bruni, Filippo
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
Heart Matters: a study protocol for a community based randomized trial aimed at reducing cardiovascular risk in a rural, African American community
Creators: name: McFarlin, Shirley
name: Lin, Feng-Chang
name: Ede, Jamie
name: Wiley-Cene, Crystal
name: Dave, Gaurav
name: Young, Tiffany
name: Ellis, Katrina
name: Bess, Kiana
name: Wynn, Mysha
name: Corbie-Smith, Giselle
name: Hoover, Stephanie M
Publisher: name: BioMed Central
Year: 2018

description: Abstract
                Background
                African Americans living in the rural south have the highest prevalence of cardiovascular disease (CVD) risk in the United States. Given this geographic and racial disparity, intervention implementation needs to be evaluated for effectiveness and feasibility with African Americans in the rural south.
                Methods
                The trial developed out of a community-based participatory research partnership, Project GRACE, and community partners who are collaborators throughout the study. Heart Matters is a randomized stepped wedge trial that will assess the effectiveness of a 12-month behavioral change intervention adapted from PREMIER, an evidence-based treatment targeting multiple CVD risk factors. 140 participants will be recruited through 8 community- or faith-based organizations to participate in the intervention. Through matched pair randomization, organizations will be randomized to begin immediately after baseline data collection (Arm 1) or delayed 6 months (Arm 2). Data collection will occur at baseline, 6, 12, and 18 months. The primary outcome is change in body weight. In addition to assessing effectiveness, the study will also evaluate process and feasibility outcomes through quantitative and qualitative data collection.
                Discussion
                This study will contribute to CVD prevention research and likely have a positive impact on the rural, African American community where the trial occurs. Our study is unique in its use of community partnerships to develop, implement, and evaluate the intervention. We expect that this approach will enhance the feasibility of the trial, as well as future dissemination and sustainability of the intervention.
                Trial registration
                Clinical Trials,
                    NCT02707432
                  . Registered 13 March 2016.
Macro biological essentialism
Creators: name: Meeussen, Loes
name: Block, Katharina
name: Schmader, Toni
name: Van Grootel, Sanne
name: olsson, maria
name: Martiny, Sarah
name: Schuster, Carolin
name: Wee, Sheila
name: Sun, Molly
name: van Laar, Colette
name: Croft, Alyssa
name: Saxler, Franziska
name: Van Rossum, Aster
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: preregistration for macro biological essentialism hypotheses and analyses
Associations between Ozone and Morbidity Using the Spatial Synoptic Classification System
Creators: name: Davis, Neil N
name: Yeatts, Karin
name: Talgo, Kevin D
name: Smith, Richard L.
name: Hanna, Adel
name: Xiu, Aijun
name: Robinson, Peter J.
Publisher: name: BioMed Central Ltd
Year: 2011

description: Abstract Background Synoptic circulation patterns (large-scale tropospheric motion systems) affect air pollution and, potentially, air-pollution-morbidity associations. We evaluated the effect of synoptic circulation patterns (air masses) on the association between ozone and hospital admissions for asthma and myocardial infarction (MI) among adults in North Carolina. Methods Daily surface meteorology data (including precipitation, wind speed, and dew point) for five selected cities in North Carolina were obtained from the U.S. EPA Air Quality System (AQS), which were in turn based on data from the National Climatic Data Center of the National Oceanic and Atmospheric Administration. We used the Spatial Synoptic Classification system to classify each day of the 9-year period from 1996 through 2004 into one of seven different air mass types: dry polar, dry moderate, dry tropical, moist polar, moist moderate, moist tropical, or transitional. Daily 24-hour maximum 1-hour ambient concentrations of ozone were obtained from the AQS. Asthma and MI hospital admissions data for the 9-year period were obtained from the North Carolina Department of Health and Human Services. Generalized linear models were used to assess the association of the hospitalizations with ozone concentrations and specific air mass types, using pollutant lags of 0 to 5 days. We examined the effect across cities on days with the same air mass type. In all models we adjusted for dew point and day-of-the-week effects related to hospital admissions. Results Ozone was associated with asthma under dry tropical (1- to 5-day lags), transitional (3- and 4-day lags), and extreme moist tropical (0-day lag) air masses. Ozone was associated with MI only under the extreme moist tropical (5-day lag) air masses. Conclusions Elevated ozone levels are associated with dry tropical, dry moderate, and moist tropical air masses, with the highest ozone levels being associated with the dry tropical air mass. Certain synoptic circulation patterns/air masses in conjunction with ambient ozone levels were associated with increased asthma and MI hospitalizations.
Anomalous dimensionality dependence of diffusion in a rugged energy landscape : How pathological is one dimension ?
Creators: name: Seki, Kazuhiko
name: Bagchi, Kaushik
name: Bagchi, Biman
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Rugged (or, rough) energy landscape (REL) with spatially distributed maxima and minima are often employed in applications of physics, chemistry and biology (enzyme kinetics, protein folding, diffusion in disordered solids, transport in organic semiconductors, relaxation in random spin systems, in supercooled liquids and glasses). Sometimes the system needs to be modeled as a random walker in high dimensions (like in protein folding/unfolding) where dimensions could be the distances between different amino acid residues (as in unfolding of HP-36). Nevertheless, most of the theoretical studies of these phenomena still employ a one dimensional description. This is despite the prediction that in a rough (or, rugged) energy landscape (REL), diffusion in one dimension (1d) is predicted to be pathologically different from any higher dimension with the increased chance of encountering broken ergodicity (Stein and Newman, 2012). We explore the dimensionality dependent diffusion on REL by carrying out an effective medium approximation based analytical calculations and compare them with the available computer simulation results. We find that at intermediate level of ruggedness (assumed to have a Gaussian distribution), where diffusion is well-defined, the value of the effective diffusion coefficient depends on dimensionality and changes (increases) by several factors (~5-10) in going from 1d to 2d. In contrast, the changes in subsequent transitions (like 2d to 3d and 3d to 4d and so on) are far more modest, of the order of 10-20% only. When ruggedness is given by random traps with an exponential distribution of barrier heights, the mean square displacement is sub-diffusive (a well-known result), but the growth of MSD is described by different exponents in one and higher dimensions. The exponent of growth is larger in higher dimensions than in 1d.
Barriers to health service access among female migrant Ugandan sex workers in Guangzhou, China
Creators: name: Aghaulor, Blessing
name: Muessig, Kathryn
name: Tucker, Joseph
Publisher: name: BioMed Central
Year: 2016

description: Abstract Background Increased trade between China and Uganda has fueled trafficking of female Ugandans into China. These women may face challenges accessing health services. This study focused on examining barriers to health care access among female Ugandan sex workers in China. Methods In 2014, we undertook in-depth interviews with 19 female Ugandan sex workers in Guangzhou, China. Interviews focused on barriers to health service access and were analyzed using an a priori coding framework followed by open-coding to capture emergent themes. Results Out of 19 women, 12 women reported a history of being trafficked into China. None of the women had a valid Chinese visa. Fear of being arrested for lack of documentation discouraged women in this sample from accessing hospital services. Low pay, housing exploitation, and remittances contributed to participants’ lack of financial resources, which further inhibited their ability to access health services. Participants expressed feeling social isolation from the local community and reported mistrust of local individuals and organizations, including hospitals. Conclusion Ugandan sex workers in China faced substantial structural barriers that limited health service access. Policy changes and the development of new programs are urgently needed to ensure these women have improved access to health services.
Digital collaboration: forme sociali in evoluzione
Creators: name: Sorrentino, Fortunato
name: Pettenati, Maria Chiara
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2014

description: La collaborazione digitale, nel contesto di un’incalzante presenza di tutta una gamma di tecnologie digitali nella vita di tutti i giorni, è l’argomento del Capitolo 3 del libro “Orizzonti di conoscenza. Strumenti digitali, metodi e prospettive per l’uomo del terzo millennio” di Fortunato Sorrentino e Maria Chiara Pettenati, edito da Firenze University Press, 2014. Mantenendo fisso il punto focale del libro – la conoscenza nelle sue nuove forme, la sua creazione e condivisione nel mondo contemporaneo – questa modalità di collaborazione, sempre più adottata dal knowledge worker moderno, viene discussa nei vari scenari d’uso e osservata da molteplici punti di vista. Ricevono particolare attenzione gli strumenti per la collaborazione digitale, una generazione di applicazioni software innovative, i cosiddetti “spazi di lavoro virtuali condivisi”, insieme alla discussione delle abilità e delle attitudini richieste per avvalersi efficacemente di tali dispositivi.
description: Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?