cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Critical success factors and challenges for individual digital study assistants in higher education: A mixed methods analysis
Creators: name: König, Claudia M.
name: Karrenbauer, Christin
name: Breitner, Michael H.
Publisher: name: Dordrecht [u.a.] : Springer Science + Business Media B.V.
Year: 2022
Subjects: subject: Critical success factors and challenges
subject: Individual digital study assistant
subject: IS success model
subject: Mixed methods
subject: Research agenda
subject: Technology in higher education
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: During the COVID-19 pandemic, the availability of online higher education programs and tools has grown rapidly. One example is an individual digital study assistant (IDSA) for students, which provides functionalities to train self-regulation skills, to engage with own educational goals and to offer automated, first-level support to higher education institution (HEI) units and employees. An IDSA further can guide students through HEI and their administration. But, what are the critical success factors (CSF) and challenges for an IDSA? We deduce these using a mixed methods approach with one quantitative student survey, two rounds of interviews with various HEI experts, and a literature review. We classified our results according to the information system (IS) success model of DeLone & McLean (2016). Our results and findings show, e.g., that skilled and reliable HEI personnel, well-organized and useful content, cross-platform usability, ease of use, and students’ social factors are essential. Attractive IDSA functionalities are a major challenge because students use many apps, daily. Based on our CSF and challenges, we deduce theoretical and practical recommendations and develop a further research agenda.
NMR Investigations of Bacterial Periplasmic Binding Proteins Involved in Ferric-Siderophore and Amino Acid Transport
Creators: name: Chu, Byron Chung Hua
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Biology--Molecular
subject: Biochemistry
subject: NMR
subject: Iron
subject: Periplasmic binding proteins
subject: Siderophore
subject: TonB
subject: FepB
subject: HisJ
subject: E. coli

description: Periplasmic binding proteins (PBPs) can be found in the periplasmic space between the outer membrane and the cytoplasmic membrane (CM) of Gram-negative bacteria. PBPs play an important role in shuttling essential nutrients from the periplasm to their cognate CM ABC transporters for import into the cytoplasm. Understanding the mechanism by which PBPs can bind and release their ligand has implications with respect to the development of therapeutic compounds that target these PBP mediated pathways. This dissertation examines the structure, function and dynamics of PBPs involved in ferric-siderophore and amino acid transport in E. coli. I solved the first nuclear magnetic resonance (NMR) solution structures of FepB, a PBP involved in ferric-enterobactin transport whose large size (34 kDa) was technically challenging and required the development and use of specialized NMR methodologies. Changes in the structural dynamics of FepB upon ligand binding reveals a novel mechanism by which this class of PBPs is able to function. A second PBP, the histidine binding protein HisJ was also studied by NMR and the solution conformation of its apo-state was determined. HisJ is a bilobal protein which differs structurally from FepB in that it has two linkers connecting its domains as opposed to one. Comparison of the structure, function and dynamics of HisJ and its individually isolated domain proteins reveals differences that shed light on the ligand binding mechanism of this class of PBPs. In addition, the conformational dynamics associated with HisJ were explored with molecular dynamics (MD) simulations. HisJ and other structurally related proteins are known to undergo large-scale opening and closing motions upon ligand binding. My MD simulations show that the apo-open conformation of HisJ is able to spontaneously sample a closed conformation in the absence of ligand. Finally, interaction studies were performed between PBPs and the TonB protein, which is involved in energy transduction to the outer membrane in Gram-negative bacteria. Complex formation between TonB and FepB or FhuD could be detected in NMR and ITC experiments; and a PBP interaction surface on TonB was identified by NMR chemical shift perturbations. Our results also suggest that TonB-PBP interactions do not form in the presence of the OM transporter. In this dissertation, I have investigated the solution structures of two different PBPs by NMR. Although they are classified as structurally related, FepB and HisJ are shown to be distinct with respect to how they bind their ligands and what role protein dynamics plays in this process.
RoboLab: providing remote access to a physical radiochemistry laboratory for teaching and training
Creators: name: Salina, Olga N.
name: Grønås, Terje
name: Pottgießer, Vivien
name: Němec, Mojmír
name: Vahlbruch, Jan-Willem
name: Walther, Clemens
name: Omtvedt, Jon Petter
Publisher: name: Dordrecht [u.a.] : Springer Science + Business Media B.V.
Year: 2022
Subjects: subject: 234m Pa nuclide generator
subject: Radiochemistry teaching
subject: Remotely controlled experiment
subject: RoboLab
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: RoboLab enables students to perform real radiochemistry experiments without being physically present in a laboratory. Remotely controlled experiments are accessed through a web interface to a physical laboratory. The laboratory equipment is interfaced to a computer that both controls the equipment and provides feedback to the web user. A generic software template, using a cloud service, was developed to facilitate easy communication between the web browser and the control system. The sixth and most recent RoboLab, aiming at the production and measurement of 234mPa (T1/2 = 1.16 min), has been successfully developed and implemented using this template.
Minimalist Grammars and Minimalist Categorial Grammars, definitions toward inclusion of generated languages
Creators: name: Amblard, Maxime
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Stabler proposes an implementation of the Chomskyan Minimalist Program, Chomsky 95 with Minimalist Grammars - MG, Stabler 97. This framework inherits a long linguistic tradition. But the semantic calculus is more easily added if one uses the Curry-Howard isomorphism. Minimalist Categorial Grammars - MCG, based on an extension of the Lambek calculus, the mixed logic, were introduced to provide a theoretically-motivated syntax-semantics interface, Amblard 07. In this article, we give full definitions of MG with algebraic tree descriptions and of MCG, and take the first steps towards giving a proof of inclusion of their generated languages.
Xanthaciura insecta
Creators: name: Norrbom, Allen L.
name: Sutton, Bruce D.
name: Steck, Gary J.
name: Monzón, José
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tephritidae
Xanthaciura
Xanthaciura insecta

description: Xanthaciura insecta (Loew) Remarks. The examined series from Venezuela has the subbasal hyaline mark in cell cu 1 more elongate than in other specimens examined. Biology. Ten species, including seven species of Bidens, have been previously reported as host plants for X. insecta. The records below include a new host record from Cosmos sulphureus Cav. and data documenting the records of Bidens squarrosa H.B.K. and Dahlia coccinea Cav. reported by Foote et al. (1993). Bidens, Cosmos, and Dahlia are closely related genera, all belonging to the tribe Coreopsideae of the Asteraceae. The larvae develop in the flowerheads. Material examined. GUATEMALA: Huehuetenango: Huehuetenango - Cuilco Road (7W), E of Chejoj, 15.41126°N 91.8241°W, 1717 m, emerged 3–5 Dec 2007 reared ex flowerheads of Cosmos sulphureus (07G63) collected 24 Nov 2007, B.D. Sutton, A.L. Norrbom, J. Monzón, F. Camposeco, 1♂ 1♀ (USNM USNMENT00671457–58). Sacatepéquez: Volcán de Agua, trail from Ciudad Viejo, reared ex flowers of Dahlia coccinea Cav. (90G11), 19 Oct 1990, A. L. Norrbom, 42♂ 29♀ (USNM), 3♂ 2♀ (FSCA), 4♂ 2♀ (UVG). MEXICO: Chiapas: Rt. 190 between Belem & Teopisca, 1800 m, reared ex flowerheads of Dahlia coccinea Cav. (87M15), 20 Sep 1987, A. L. Norrbom & L. E. Carroll, 1♂ 1♀ (IEXV), 2♂ 3♀ (USNM USNMENT00214399–403); Rt. 195 btw. Bochil & Soyalo, 1550 m, reared ex flowerheads of Dahlia coccinea Cav. (87M9), 19 Sep 1987, A. L. Norrbom, 1♂ 1♀ (IEXV), 2♂ 1♀ (USNM USNMENT00104384–86), Cacahoatan, Centro Exp. Rosario Izapa, 14°59'N 90°10'W, reared ex flowerheads of Bidens alba L. (93M13), 2 Nov 1993, A. L. Norrbom & C. Estrada, 3♂ 1♀ (USNM USNMENT00214348–51). VENEZUELA: Mérida: Páramo La Culata, reared ex flowerheads of Bidens squarrosa H.B. K. (89V16), 27 Oct 1989, A. L. Norrbom, 1♂ 2♀ (IZAM), 3♂ 6♀ (USNM USNMENT00104391–400).
description: Published as part of Norrbom, Allen L., Sutton, Bruce D., Steck, Gary J. & Monzón, José, 2010, New genera, species and host plant records of Nearctic and Neotropical Tephritidae (Diptera) 2398, pp. 1-65 in Zootaxa 2398 on pages 60-63
description: {"references": ["Foote, R. H., Blanc, F. L. & Norrbom, A. L. (1993) Handbook of the fruit flies (Diptera: Tephritidae) of America north of Mexico. Comstock Publishing Associates, Ithaca. xii + 571 p."]}
Impact of Intermittent Hypoxia on Human Cardiorespiratory and Cerebrovascular Function
Creators: name: Beaudin, Andrew Edward
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Intermittent Hypoxia
subject: obstructive sleep apnea
subject: Cerebral Blood Flow
subject: Control of breathing
subject: blood pressure
subject: Prostanoids
subject: Inflammation

description: Obstructive sleep apnoea (OSA) is a chronic sleep disorder characterized by intermittent hypoxia (IH) exposure during sleep and is an independent risk factor for cardiovascular and cerebrovascular disease. IH in untreated OSA is advanced as the principal pathway leading to the greater risk of vascular disease associated with OSA. Additionally, IH is implicated in the propagation of OSA severity by increasing ventilatory instability, in part, by enhancing ventilatory chemosensitivity. Therefore, the focus of this thesis was to investigate the mechanisms through which IH functions and the role of IH in disrupting vascular and ventilatory regulation in OSA. The molecular pathways through which IH disrupts vascular and ventilatory regulation are poorly understood, but IH-induced inflammation is believed to be a primary contributor. Using a human experimental model of IH during wakefulness and a clinical population of untreated OSA patients, Study 1 investigated the role of cyclooxygenase (COX)-1 and COX-2 derived prostanoids (mediators of the inflammatory response and vascular regulation) in IH-induced alterations in cardiovascular and cerebrovascular regulation. Additionally, Study 2 examined the role of inflammation in IH-induced respiratory plasticity. Study 3 investigated the effects of nocturnal oxygen therapy (to remove IH) and continuous positive airway pressure (CPAP; gold standard OSA treatment) on cardiorespiratory and cerebrovascular responses to hypoxia in newly diagnosed OSA patients. Finally, Study 4 assessed the feasibility of adapting our human IH model to sleep while incorporating the ability to assess cardiovascular and cerebrovascular responses to hypoxia and hypercapnia during sleep. Studies 1-3 add substantial knowledge to this important area of research. Specifically, they reveal that 1) cyclooxygenase (COX)-1 and COX-2 differentially regulate blood pressure and cerebrovascular responses to acute and chronic IH; 2) inflammation does not contribute to IH-induced respiratory plasticity following an acute (6h) IH exposure; and 3) both nocturnal oxygen and CPAP treatment of OSA may lower blood pressure during isocapnic-euoxia and the hypoxic ventilatory response, but neither modality effects vascular responses to hypoxia. Lastly, Study 4 showed it is feasible to apply our human IH model to sleep and to concurrently assess vascular responses to hypoxia and hypercapnia during sleep.
Investigating the Origins of Differentiated Vulnerabilities to Climate Change and their Effects on Wellbeing
Creators: name: Cappelli, Federica
name: Cappelli, Federica
Publisher: name: Unknown
Year: 2020
Subjects: subject: Environmental Economics and Policy
subject: Climate Change
subject: Vulnerability
subject: Inequality

description: The paper traces the evolution the concept of socioeconomic vulnerability to climate change has followed in the academic and scientific debate. The recent recognition of vulnerability as a social construction has shifted the focus of the analysis on the dimension of adaptive capacity, i.e. the human response to environmental stresses and climate hazards. Depending on the social and institutional factors in place in a society, this human response can either mitigate or exacerbate harm. In particular, the paper focuses on the role of both vertical and horizontal inequalities in determining differentiated vulnerabilities across individuals and population groups. Inequality in the distribution of income and relevant resources is primarily a question of access to tangible and intangible assets and capabilities that can enable individuals or population groups to prevent and cope with impacts from extreme weather events.
Longitudinal and transverse exciton spin relaxation times in single InP/InAsP/InP nanowire quantum dots
Creators: name: Sasakura, H.
name: Hermannstädter, C.
name: Dorenbos, S. N.
name: Akopian, N.
name: van Kouwen, M. P.
name: Motohisa, J.
name: Kobayashi, Y.
name: Kumano, H.
name: Kondo, K.
name: Tomioka, K.
name: Fukui, T.
name: Suemune, I.
name: Zwiller, V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We have investigated the optical properties of a single InAsP quantum dot embedded in a standing InP nanowire. A regular array of nanowires was fabricated by epitaxial growth and electron-beam patterning. The elongation of transverse exciton spin relaxation time of the exciton state with decreasing excitation power was observed by first-order photon correlation measurements. This behavior is well explained by the motional narrowing mechanism induced by Gaussian fluctuations of environmental charges in the InP nanowire. The longitudinal exciton spin relaxation time was evaluated by the degree of the random polarization of emission originating from exciton state confined in a single nanowire quantum dots by using Mueller Calculus based on Stokes parameters representation.
description: 6 page, 5 figures
Critical Success Factors for Nonprofit Organizations Starting Social Enterprises
Creators: name: Andres, Jill
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Management
subject: social enterprise

description: Increasing numbers of nonprofit organizations are launching social enterprises as a way to further their mission and generate revenue, yet there is little understanding of what factors lead some nonprofit organizations to experience social enterprise success while others fail in their efforts. Using a qualitative method and key informant interviews, this study sought to identify patterns of success across social enterprise initiatives from the perspective of five executive directors of nonprofit organizations that were operating or had previously operated one or more social enterprises, seven managers of social enterprises, and four funders of multiple social enterprises. The findings that emerged from these interviews offer insight into factors that contribute to a nonprofit organization’s ability to launch and sustain a successful social enterprise. The implications of the study are discussed with respect to the field of social enterprise, the role of government and funders, as well as nonprofit organizations that are considering the launch of a social enterprise.
An energy-frequency parameter for earthquake ground motion intensity measure
Creators: name: Chen, Guan
name: Yang, Jiashu
name: Liu, Yong
name: Kitahara, Takeshi
name: Beer, Michael
Publisher: name: New York, NY [u.a.] : Wiley
Year: 2022
Subjects: subject: energy-frequency
subject: fragility function
subject: ground motion IM
subject: Hilbert-Huang transform
subject: seismic risk analysis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: A novel scalar ground motion intensity measure (IM), termed the energy-frequency parameter, is proposed based on the Hilbert-Huang transform. To validate the effectiveness of the proposed IM, the correlation analysis between the engineering demand parameter (EDP) and energy-frequency parameter is performed using 1992 recorded ground motions, in which EDP is the maximum inter-storey drift of structures obtained by nonlinear time-history analysis. Results show that the energy-frequency parameter has a strong linear correlation with EDP at natural logarithm, and this correlation is applicable for various structural fundamental periods. We also verified that the lognormal cumulative distribution function can characterize the energy-frequency parameter-based fragility function, which can further facilitate the application of the parameter in seismic risk analysis. Besides, the strong correlation between the energy-frequency parameter and other IMs (such as PGA, PGV, PGD, CAV, (Formula presented.), (Formula presented.), and SI) potentially makes the proposed IM widely applicable in seismic risk analysis. Moreover, since the energy-frequency parameter depends only on the frequency-domain characteristics of the ground-motion signal, it may closely link to seismological theory and provide new insights into seismology engineering.
Time-resolved second harmonic generation study of buried semiconductor heterointerfaces using soliton-induced transparency
Creators: name: Glinka, Y. D.
name: Tolk, N. H.
name: Furdyna, J. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The transient second harmonic generation and linear optical reflectivity signals measured simultaneously in reflection from GaAs/GaSb/InAs and GaAs/GaSb heterostructures revealed a new mechanism for creating self-induced transparency in narrow bandgap semiconductors at low temperatures, which is based on the dual-frequency electro-optic soliton propagation. This allows the ultrafast carrier dynamics at buried semiconductor heterointerfaces to be studied.
Establishing a Framework to Transition High Frequency Oscillations to Routine Clinical Care in Patients with Focal Epilepsy
Creators: name: Spring, Aaron Michael
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Neuroscience
subject: Health Sciences
subject: Medicine and Surgery
subject: Epilesy
subject: Generalizability Theory
subject: High Frequency Oscillations (HFOs)
subject: Electroencephalography (EEG)
subject: Intracranial EEG
subject: Surgery
subject: Interrater Reliability
subject: localization
subject: Biomarkers
subject: Surrogate Markers
subject: Visual Review
subject: Automated Detection Algorithm

description: High frequency oscillations (HFOs), characteristic oscillations observable using electroencephalography (EEG), are a promising and specific marker of the epileptogenic zone (EZ). However, there remain several obstacles to the implementation of HFOs as a prospective tool in the treatment of epilepsy. The identification of HFOs lacks universal standards and demands large time commitments from epileptologists. Therefore, this work involved the implementation and validation of novel frameworks for identifying HFOs, and for evaluating these HFOs as markers of the EZ. An epoched framework was implemented to facilitate the visual identification of HFOs, through which poor reliability was observed between reviewers. Furthermore, it was found that the temporal efficiency of visually evaluating HFOs within the epoched framework marked a substantial improvement over previously reported evaluation times. Using generalizability theory, it was then extended to determine effective methods of achieving highly reliable visual HFO evaluations, which included averaging ratings from at least 12 visual reviewers, or employing a training paradigm to increase the correlation of the ratings across reviewers. A novel surrogate marker (uGIC) of HFO activity was implemented and found to be correlated with HFOs detected algorithmically at low or high thresholds, all of which were found to be markers of the seizure onset zone overall. A retrospective framework was implemented to improve the accuracy of delineating the margins of resection with respect to EEG electrodes. A deformable method of image co-registration and a hybrid method of estimating electrode shift were shown to more effectively compensate for post-surgical shifts in brain anatomy. Resecting the uGIC or detected HFOs were found to have a positive effect on seizure freedom. Notably, the inclusion of lower-threshold oscillations was beneficial in facilitating the visual evaluation of HFOs, and in the identification of the EZ. Together, the findings of the studies undertaken herein provide a comprehensive framework to serve as the basis for transitioning high frequency oscillations to a feasible and meaningful part of the routine pre-surgical work-up in patients with focal epilepsy.
Iran's Territorial Divisions from a Bioregional Perspective. A Case Study of Western part of Khorasan Razavi Province, Iran
Creators: name: Oliaei, Mariam
name: Shaikhi, Mohammad
name: Sarrafi, Mozaffar
Publisher: name: Contesti. Città, territori, progetti
Year: 2019

description: To date, weakness and inefficiency of Iran’s regionalization system to develop a territorial coherent space based on local potentials has seriously challenged integrated management of space disrupting country’s potential for sustainability. Tackling these problems has necessitated the identification of a new approach drawing on territorial complexity act as a base to determine sustainable units as a context for territorial unity. Therefore, in the light of bioregionalism approach - a framework capable of improving synergic relationships, cohesion and capacity- the current study aims to determine spatial units called bioregions as the most congruent purlieu of cultural, ecological, historical and socio-economic integrity. To map bioregions in this case study of western part of Khorasan Razavi consisting of an area of seven counties having limited ecological capacities, the cartographic design was adopted as the methodological approach. With this in mind, 10 original data layerswere collected and converted to shapefiles in Arc GIS. The land was divided into 17 bioregions. Research findings show how these bioregional boundaries significantly mismatch the state-created ones and this necessitates dramatic changes in current boundaries to match the principles of place and ecological criteria. To reach critical mass and create capable communities, bioregions were classified into 3 categories: Macro, Meso, and Micro bioregions. In practice, the congruency of bioregions provides a context for integrated spatial management that will lead to developing regional synergy aimed at creating territorial coherence and enhancing the biological capacity of the country in the long run.
description: Contesti. Città, territori, progetti, No. 1 (2018)
Data Mining Applications: A comparative Study for Predicting Student's performance
Creators: name: Yadav, Surjeet Kumar
name: Bharadwaj, Brijesh
name: Pal, Saurabh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Retrieval (cs.IR)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Knowledge Discovery and Data Mining (KDD) is a multidisciplinary area focusing upon methodologies for extracting useful knowledge from data and there are several useful KDD tools to extracting the knowledge. This knowledge can be used to increase the quality of education. But educational institution does not use any knowledge discovery process approach on these data. Data mining can be used for decision making in educational system. A decision tree classifier is one of the most widely used supervised learning methods used for data exploration based on divide & conquer technique. This paper discusses use of decision trees in educational data mining. Decision tree algorithms are applied on students' past performance data to generate the model and this model can be used to predict the students' performance. It helps earlier in identifying the dropouts and students who need special attention and allow the teacher to provide appropriate advising/counseling.
description: 7 pages, 2 figures. arXiv admin note: text overlap with arXiv:1201.3417 and arXiv:1201.3418
Il bioregionalismo nel contesto della regionalizzazione urbana. Il caso della bioregione pontina
Creators: name: Budoni, Alberto
Publisher: name: Contesti. Città, territori, progetti
Year: 2019

description: Assumendo in riferimento a Soja la regionalizzazione urbana come modello interpretativo dell’urbanizzazione contemporanea, le unità bioregionali si possono considerare quelle più adatte ad utilizzarlo rileggendo esperienze e riflessioni del bioregionalismo. Dall’applicazione di questa impostazione alla Bioregione Pontina, un contesto caratterizzato da insostenibili modelli di sviluppo, si individua l’idea di cittadinanza bioregionale e gli interventi sulle reti degli attori dello sviluppo locale, dell’economia solidale delle infrastrutture verdi, blu e della mobilità, come elementi portanti di una strategia per uno sviluppo diverso.
description: Contesti. Città, territori, progetti, No. 1 (2018)
L'esperienza bioregionalista e lo sviluppo delle aree interne. Una possibile applicazione alla regione Ogliastra
Creators: name: Colavitti, Anna Maria
name: Serra, Sergio
name: Usai, Alessia
Publisher: name: Contesti. Città, territori, progetti
Year: 2019

description: Le relazioni ambientali che legano le comunità ai propri ambienti di vita e, soprattutto, l'identificazione e quantificazione dei benefici economici, sociali e culturali che le stesse traggono da essi in termini di servizi ecosistemici, sono divenute centrali nella pianificazione territoriale. La polarizzazione delle dinamiche di sviluppo attorno alle grandi città, tuttavia, continua a minare l’efficacia dei piani inibendo l’attivazione del capitale territoriale nelle aree rurali, definite al negativo “aree interne”. I sistemi agro-forestali non sono più utilizzati, il capitale edilizio cade in disuso, le conoscenze e le pratiche di manutenzione del territorio non si tramandano e si perdono generando i “paesaggi dell’abbandono”. I costi sociali degli attuali processi di produzione e di consumo divengono palesi e manifesti: dal dissesto idrogeologico, alla perdita di diversità biologica sino alla carenza dei servizi fondamentali base per le comunità insediate (istruzione, sanità, mobilità, connettività virtuale - accesso a Internet). Nelle politiche pubbliche per le aree interne, tuttavia, l’approccio al governo delle trasformazioni territoriali non evolve e resta subordinato a fattori e domande esogene di crescita quantitativa, indifferenti alle specificità dei contesti e dei luoghi e alle loro interazioni. In risposta all’attuale policy-making, alcune comunità unitamente al mondo accademico lavorano per costruire modelli alternativi di pianificazione, basati sulla riscoperta e la valorizzazione delle produzioni tradizionali e delle pratiche sociali ad esse connesse, intese come ambiti spaziali allargati di beni comuni. Partendo dal concetto stesso di “area interna” e dalle modalità con cui esso è stato declinato nella pianificazione passata, il contributo propone una riflessione sui modelli adottati nelle politiche pubbliche e nella pianificazione ordinaria e sulle loro relazioni con altri modelli alternativi bottom-up per lo sviluppo locale analizzando, attraverso l’esperienza sarda, il loro potenziale supporto all’ammodernamento delle politiche per lo sviluppo locale e per il governo del territorio.
description: Contesti. Città, territori, progetti, No. 1 (2018)
The I=2 pipi S-wave Scattering Phase Shift from Lattice QCD
Creators: name: Beane, S. R.
name: Chang, E.
name: Detmold, W.
name: Lin, H. W.
name: Luu, T. C.
name: Orginos, K.
name: Parreno, A.
name: Savage, M. J.
name: Torok, A.
name: Walker-Loud, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The pi+pi+ s-wave scattering phase-shift is determined below the inelastic threshold using Lattice QCD. Calculations were performed at a pion mass of m_pi~390 MeV with an anisotropic n_f=2+1 clover fermion discretization in four lattice volumes, with spatial extent L~2.0, 2.5, 3.0 and 3.9 fm, and with a lattice spacing of b_s~0.123 fm in the spatial direction and b_t b_s/3.5 in the time direction. The phase-shift is determined from the energy-eigenvalues of pi+pi+ systems with both zero and non-zero total momentum in the lattice volume using Luscher's method. Our calculations are precise enough to allow for a determination of the threshold scattering parameters, the scattering length a, the effective range r, and the shape-parameter P, in this channel and to examine the prediction of two-flavor chiral perturbation theory: m_pi^2 a r = 3+O(m_pi^2/Lambda_chi^2). Chiral perturbation theory is used, with the Lattice QCD results as input, to predict the scattering phase-shift (and threshold parameters) at the physical pion mass. Our results are consistent with determinations from the Roy equations and with the existing experimental phase shift data.
description: 22 pages, 16 figures
La Città Metropolitana di Torino, una questione non solo urbana
Creators: name: Caruso, Nadia
name: Pede, Elena
name: Saccomani, Silvia
Publisher: name: Contesti. Città, territori, progetti
Year: 2019

description: La dimensione metropolitana, in questo secondo decennio del nuovo millennio, costituisce uno dei temi di confronto e di scontro politico e istituzionale. I processi di trasformazione territoriali in atto hanno dimensioni che non sono più solo urbane, ma regionali, e allo stesso tempo, la crisi riproduce in tanti punti del territorio situazioni di disagio economico e sociale un tempo essenzialmente tipici delle periferie delle grandi città. Nel caso di Torino queste dinamiche si complicano, influenzate dalla morfologia del territorio e dalla frammentazione amministrativa, e rendono più complesse sia la sfida economica per uscire dalla crisi, sia la sfida di governo introdotta dal mutato quadro istituzionale (L.56/2014). In questo articolo il caso torinese, che nel corso dei decenni è passato da una struttura monocentrica ad un territorio più policentrico, è descritto analizzando diverse dimensioni. Ne emerge un ritratto che interseca gli aspetti morfologici del territorio, la struttura socio-demografica, la dimensione economica e il sistema produttivo in fase di transizione, e, in ultimo, la questione del governo di un territorio complesso e istituzionalmente frammentato.
description: Contesti. Città, territori, progetti, No. 1 (2018)
La dimensione regionale nel prisma della statualità post-nazionale e delle regioni urbane globali: le innovazioni in atto e il ritardo della ricerca
Creators: name: Salone, Carlo
Publisher: name: Contesti. Città, territori, progetti
Year: 2019

description: L’articolo intende discutere con un taglio critico le modalità con cui il dibattito scientifico, la politica regionale e le azioni che da questa derivano stanno affrontando i cambiamenti radicali che contrassegnano il rapporto tra le ‘regioni politiche’ e il potere statuale, sullo sfondo di una situazione internazionale caratterizzata dall’irrompere del cosiddetto discorso ‘sovranista’. Quest’ultimo sembra aver ridimensionato l’afflato regionalista che aveva connotato l’ultimo decennio del Novecento, in particolare nei paesi membri dell’Unione Europea, e riportato in auge la sovranità statuale come asse di riferimento della vita delle comunità politiche nazionali. In realtà, il regionalismo non appare in ritirata, ma ha semmai preso strade diverse rispetto al rafforzamento legislativo impresso con le riforme degli anni Novanta, privilegiando una dimensione urbano-regionale che sembra interpretare meglio dei tradizionali contenitori regionali il ruolo di ‘soggetto attivo’ delle dinamiche spaziali e dei nuovi equilibri territoriali. Contro la convenzionale dicotomia che vede contrapposti Stato e regioni, sulla scorta di recenti evoluzioni del quadro teorico-analitico internazionale l’articolo propone quindi di osservare questi attori come elementi co-costitutivi di una arena decisionale di natura transcalare e post-nazionale più adatta alle dinamiche spaziali contemporanee e alle relative strategie di controllo da parte delle istituzioni pubbliche e delle organizzazioni socio-economiche. Si tratta di una lettura delle relazioni tra Stato e regioni – e tra politiche nazionali e politiche regionali – che è del tutto assente nel dibattito italiano, attardato nelle tradizionali diatribe su centralismo/ federalismo e nazionale/locale.
description: Contesti. Città, territori, progetti, No. 1 (2018)
Effects of Babel in the Church: A Study of Language Planning, Policy and Practice in Japanese Ethnic Churches
Creators: name: Barrett, Tyler
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education--Bilingual and Multicultural
subject: Language Policy
subject: Ethnic Churches

description: In the globalizing world, it is difficult to understand the cultural, linguistic, religious and policy landscape of Japanese ethnic church communities. Japanese ethnic church communities in Western Canada consist of, and are impacted by, levels of language planning, policy, and practice as they are communities that operate within and without macro-levels of language policies (i.e., Official Language Act and the Canadian Multicultural Act), meso-levels of church policies (e.g., church websites and Facebook pages), and micro-levels that are often determined by perspectives of church members who are typically Japanese people from Japan. Japanese ethnic churches are also spaces that function to legitimize the language and cultural practices of Japanese people who come to Canada for various purposes and periods of time. Since little research has been done to understand the language and cultural practices of Japanese ethnic churches in Western Canada, it is important to ask the following question: What is a Japanese ethnic church community in terms of language and cultural practices? To answer this question, I use language planning and policy (Johnson, 2009) as a theoretical framework and conduct a multi-site case study (Thomas, 2011) that consists of data collected through interviews and observational experiences which are analyzed using Critical Discourse Analysis (CDA) (Fairclough, 2003; Gumperz, 1982; Onodera, 2004) to understand relationships of power and intertextuality in discourses and in social practices relevant to Japanese ethnic church communities in Western Canada. The analysis reveals that while Japanese ethnic churches are spaces of legitimization that are fueled by strong beliefs about one nation, one culture, and one language ideologies, and subsequently aimed at, and dependent upon facilitating the perceived Japanese language and cultural preferences/needs of first generation Japanese people who come to Canada as adults, church members also perceive themselves as becoming “mixed” to varying degrees as they are impacted by the dominant English language policies, practices, and culture in Western Canada. As a result, legitimization is often context dependent and experienced differently by church members within and without Japanese ethnic churches.
De la Biorégion Urbaine
Creators: name: Paquot, Thierry
Publisher: name: Contesti. Città, territori, progetti
Year: 2019

description: Parmi les territoires que les humains façonnent (empire, État-nation, ville, village, etc.), la « région » aurait-elle la juste taille pour une démocratie directe et un cadre de vie permettant l’autonomie de chacun tout en lui procurant ce dont il a besoin ? L’auteur explore d’abord l’histoire du régionalisme en France, au lendemain du « Printemps des peuples » (1848) jusqu’aux années 1970, qui correspondent à l’épuisement de la revendication régionaliste. Puis, il présente la « biorégion » que pressent Patrick Geddes, dans la lignée d’Élisée Reclus, en prônant le regional survey, que Lewis Mumford tente de réaliser aux États-Unis. Enfin, il expose les conceptions de Kirkpatrick Sale, de Peter Berg et Raymond Dasmann sur le biorégionalisme et celle d’Alberto Magnaghi sur l’école italienne du territorialisme, pour appeler à une confédération européenne des biorégions urbaines. Une biorégion n’est pas décidée d’en-haut, ce n’est pas un territoire administratif. Elle résulte d’une relation particulière entre des habitants et un territoire. Ses « frontières » sont poreuses et malléables. Son économie est entremêlée à son écologie. Diversité et autonomie sont ses maitres-mots.
description: Contesti. Città, territori, progetti, No. 1 (2018)
Public transit use as a catalyst for an active lifestyle : mechanisms, predispositions and hindrances
Creators: name: Lachapelle, Ugo
Publisher: name: University of British Columbia
Year: 2010

description: In this thesis, I use the concept of a catalyst to analyze the relationships between transit use and measures of physical activity in neighborhoods with contrasting walkability and income levels. These analyses are preceded by an exploration of the long-term housing location preferences that enable people to live near transit, and ultimately to choose public transit. Three separate analyses using the Neighborhood Quality of Life Study (NQLS, 2002-2005; n=2199), provided by collaborators, form the core chapters of this thesis. The NQLS is a cross-sectional, matched community observational study of adults randomly sampled across 32 neighborhoods in Metro Seattle, WA and Baltimore, MD to compare behaviors of residents. Neighborhoods either had high or low median income and high or low walkability (4 neighborhood of each types in each cities). Causal mechanisms are explored, but cross-sectional data prevents concluding on causal relationships. In the first manuscript, the choice to use transit is analyzed in the context of long-term housing decisions. Some respondents wanting to locate near transit were not able to. Increasing housing opportunities near transit could improve the viability of using public transit, and support its potential health benefits. For public transportation to be considered a catalyst for physical activity, it must have a positive association independent of neighborhood walkability, car availability, and enjoyment of moderate physical activity. These issues are confirmed in the second manuscript. Transit commuters’ higher frequencies of utilitarian walking to destinations near the home and workplace is presented as a potential explanation for higher levels of physical activity. Additionally, active transportation time should not displace time used for leisure physical activity, and this relationship should hold whether transit users have access to an automobile (choice riders) or not (transit-dependent riders). This is confirmed in the third manuscript. In light of the active lifestyle benefits of public transit use, public health agencies may promote transit use through social marketing, and promote transit infrastructure development to policy-makers. Urban planners and transit agencies should consider the ability of households to locate near transit, and the lifestyle burden of transit-dependent riders, in order to promote healthier, inclusive and sustainable cities.
Additional file 1 of Insight into carbapenem resistance and virulence of Acinetobacter baumannii from a children’s medical centre in eastern China
Creators: name: Zhu, Yunfen
name: Zhang, Xin
name: Wang, Yunzhong
name: Tao, Yunzhen
name: Shao, Xuejun
name: Li, Yang
name: Li, Wei
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Supplementary Material 1: Table S1 Genome sequence table
Application of Multi-Stage Fracturing of Horizontal Wells in SAGD Technology
Creators: name: Saeedi, Majid
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering--Petroleum
subject: SAGD
subject: Multi-Stage Fracturing
subject: Geomechanics
subject: Thermal Recovery
subject: Interbedded Sands
subject: IHS
subject: Fracture Conductivity
subject: Rock Mechanics
subject: Proppant Selection
subject: Fracture Design
subject: Frictional Interface
subject: Bi-material Interface

description: SAGD process is used in reservoirs with continuous sand body and high vertical permeability. In western Canada, most of top tier SAGD candidates have already been developed. Many lower tier pools with interbedded shale layers (such as IHS) are available in which current SAGD practices may not deliver an efficient recovery method. The suggested method is to perform a multi-stage fracturing treatment on the injector to open up barriers with vertical hydraulic fractures before steaming. If successful, steam can pass through the barriers, effectively heat the otherwise isolated oil and recover it. This research has two major components. First, the flow mechanism and recovery response of a fractured SAGD well are discussed to show that the suggested process can improve production rate and recovery factor. The desired fracture properties and expected production rates are obtained by using analytical and numerical reservoir engineering techniques. Through numerical simulation, a matrix of sensitivity cases is made on key fracture parameters. It is shown that fractures with short half-length but high conductivity are required. Using the sensitivity results, an optimum range of the key fracturing parameters and general design criteria are determined using a new dimensionless fracture conductivity definition. In the second part, some geomechanical topics to be encountered are discussed, starting with a review of relevant hydraulic fracturing field trials in oil sands. Some interface crossing criteria are reviewed and the extended Renshaw and Pollard criterion is used to study fracture propagation through sand-shale interfaces. These results are then compared to results from a coupled reservoir-geomechanics-fracturing simulation software. It is shown that tensile hydraulic fractures can be created in the oil sands, and fractures can cross sand-shale interfaces and be filled with desired concentration of proppant. It is also shown that small but high conductivity fractures (required for success of the proposed method) can be generated by using currently available proppants and fluid systems. The design considerations for various liner systems that can combine fracturing process and SAGD phase are discussed and a few new designs are proposed. Finally, a step by step roadmap for field implementation of this novel method is presented.
Understanding the Fanaroff-Riley radio galaxy classification
Creators: name: Saripalli, Lakshmi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The simple, yet profoundly far-reaching classification scheme based on extended radio morphologies of radio galaxies, the Fanaroff-Riley classification has been a cornerstone in our understanding of radio galaxies. Over the decades since the recognition that there are two basic types of radio galaxy morphologies there have been several findings in different wavebands that have reported properties on different scales. Although it is realized that there may be intrinsic as well external causes an overarching view of how we may understand the two morphological types is missing. With the radio power-absolute magnitude relation (the Owen-Ledlow diagram) as backdrop we review and develop an understanding of the two radio galaxy types in the light of what is known about them. We have for the first time included the dust properties of the two FR classes together with the relative orientations of dust, host major axis and the radio axis to present a qualitative framework within which to understand the conditions under which they form. (Abridged).
description: 15 pages, To appear in Astronomical Journal
The post-metropolitan gaze?
Creators: name: Ache, Peter
Publisher: name: Contesti. Città, territori, progetti
Year: 2019

description: An outsiders look at spatial planning in Italy witnessed a remarkable exercise with the ratification of the so called ‘Delrio law’ in 2014 and, subsequently, the formation of fourteen metropolitan cities. A process, reaching in principle back to the 1990ies and having the intention to reform the constitutional set-up of the state, reached a conclusion. A bright step towards the modernisation of state administration, attempting to produce better and more appropriate institutions for the growing city regions in Italy, which are at the complex target of that exercise. A consortium of Italian university scholars from various universities (Balducci et al., 2017) embarked during the same period on a project which has the intention to provide a better understanding of metropolitan city regions, some of them forming the spatial layer of the new institutions. Understanding the complex structures and processes behind modern metropolitan city regions is the ambition, ultimately also improving the capacity to steer and manage development processes. This short paper attempts to contribute to the addressed discussions by outlining three perspectives: It will first reflect on relevant issues following from a global debate on the urban millennium and on planetary urbanisation (UN, 2014, Brenner and Schmid, 2015). Second, results of an ongoing research project on urban futures and vision making processes, anticipating urban futures, will be presented. And finally, a brief conclusion will be drawn, critically acclaiming the need to embrace the future by making visions that explore unknowable novelty, which are experimental, and which open political horizons instead of closing them. That is, the post-metropolitan gaze cannot remain an analytical one; it needs essentially and urgently also to be one that steps forward to action.
description: Contesti. Città, territori, progetti, No. 1 (2018)