cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cold-pool-driven convective initiation: using causal graph analysis to determine what convection-permitting models are missing
Creators: name: Hirt, Mirjam
name: Craig, George C.
name: Schäfer, Sophia A. K.
name: Savre, Julien
name: Heinze, Rieke
Publisher: name: FID GEO
Year: 2020

description: Cold-pool-driven convective initiation is investigated in high-resolution, convection-permitting simulations with a focus on the diurnal cycle and organization of convection and the sensitivity to grid size. Simulations of four different days over Germany were performed using the ICON-LEM model with grid sizes from 156 to 625 m. In these simulations, we identify cold pools, cold-pool boundaries and initiated convection. Convection is triggered much more efficiently in the vicinity of cold pools than in other regions and can provide as much as 50% of total convective initiation, in particular in the late afternoon. By comparing different model resolutions, we find that cold pools are more frequent, smaller and less intense in lower-resolution simulations. Furthermore, their gust fronts are weaker and less likely to trigger new convection. To identify how model resolution affects this triggering probability, we use a linear causal graph analysis. In doing so, we postulate a graph structure with potential causal pathways and then apply multi-linear regression accordingly. We find a dominant, systematic effect: reducing grid sizes directly reduces upward mass flux at the gust front, which causes weaker triggering probabilities. These findings are expected to be even more relevant for km-scale, numerical weather prediction models. We thus expect that a better representation of cold-pool-driven convective initiation will improve forecasts of convective precipitation.
Oxidative stress and cellular adhesion molecules in obstructive sleep apnea
Creators: name: Urbanetto Peres, Bernardo
Publisher: name: University of British Columbia
Year: 2021

description: Background: Obstructive Sleep Apnea (OSA) is the most common respiratory disorder during sleep. OSA is an independent risk factor for developing cardiovascular diseases (CVD). Although risk is increased, it is still challenging to identify which patients will develop CVD as standard disease metrics are not that helpful. Circulating biomarkers could be useful to risk stratify OSA patients. However, current evidence in this regard is limited. Oxidative stress biomarkers and cellular adhesion molecules might be particularly useful as these are elevated in OSA patients and in patients with CVD. Thesis Objectives: 1. Identify and summarize the existing evidence on prognostic biomarkers in OSA (Chapters 1-2). 2. Evaluate the association between cellular adhesion molecules, oxidative stress markers and OSA (Chapters 3-4). 3. Evaluate whether levels of cellular adhesion molecules and oxidative stress markers predict incident CV events in an OSA-cohort (Chapter 5-6). 4. Discuss the implications and future directions of the findings (Chapter 7). Methods: Adult patients (>19 years old) referred for suspected OSA to the University of British Columbia Hospital Sleep Disorder Laboratory for inpatient polysomnography (PSG) were studied. Fasting blood (15 ml) was collected on the morning after PSG, and plasma was stored in a -80C freezer. Plasma levels of 8-isoprostane, 8-hydroxydeoxyguanosine (8-OHdG), superoxide dismutase (SOD), intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1) and E-selectin (endothelial selectin) were assessed. Incidence of CV events was assessed by deterministic linkage through Popdata-BC. Results: OSA severity was independently associated with higher circulating E-selectin and 8-isoprostane levels. In patients with suspected OSA, ICAM-1 was an independent predictor of incident CV events (OR=4.12 95% CI 1.47-11.55). In moderate to severe OSA patients, E-selectin was independently associated with CV events (OR = 4.07 95% CI 1.06 – 15.61), but not in patients without OSA. Oxidative stress markers were not associated with incident CV events. Conclusion: E-selectin and 8-isoprostane were independently associated with OSA. Cellular adhesion molecules such as ICAM-1 and E-selectin were associated with incident CV events and might be promising markers in CV disease prediction in OSA. Oxidative stress markers were not associated with incidence of CV events.
title: Remarks Prepared for Delivery by Secretary of Transportation Elizabeth Hanford Dole, Kays Gary Humanitarian Award
Creators: name: Dole, Elizabeth Hanford
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1987
Subjects: classificationCode: https://trt.trb.org/term/90595
subject: Transportation safety
classificationCode: https://trt.trb.org/term/89768
subject: Transportation planning
classificationCode: https://trt.trb.org/term/88891
subject: Transportation policy

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/4
description: Remarks prepared for delivery by Secretary of Transportation Elizabeth Hanford Dole for the Kays Gary Humanitarian Award, Mission Air, Charlotte, North Carolina on January 30, 1987.
title: ÐÑÐµÐ½ÐºÐ° ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐ½Ð¸Ð²ÐµÑÑÐ°Ð»ÑÐ½ÑÑ Ð¿ÑÐ¾Ð»ÐµÑÐ½ÑÑ ÑÑÑÐ¾ÐµÐ½Ð¸Ð¹ Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ Ð¼Ð¾ÑÑÐ¾Ð² Ð² ÐÐ»ÑÐ°Ð¹ÑÐºÐ¾Ð¼ ÐºÑÐ°Ðµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Estimation of economic efficiency of universal spans application for temporary bridges in Altai Region
Creators: name: ÐÐ°ÑÐ¾Ð²ÐºÐ¸Ð½, Ð Ð¾Ð¼Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ¾ÑÑÑ
Ð¢ÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½Ð¾Ðµ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾
ÐÑÐºÑÑÑÑÐ²ÐµÐ½Ð½ÑÐµ ÑÐ¾Ð¾ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð½Ð° Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ Ð´Ð¾ÑÐ¾Ð³Ð°Ñ
ÑÐºÑÐ¿ÐµÑÑÐ½ÑÐ¹ Ð¾Ð¿ÑÐ¾Ñ
expert survey

description: Ð¦ÐµÐ»ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÑÐµÐºÑÐ° Ð¿ÑÐ¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ð¸ ÑÐ½Ð¸Ð²ÐµÑÑÐ°Ð»ÑÐ½ÑÑ Ð±ÑÑÑÑÐ¾Ð²Ð¾Ð·Ð²Ð¾Ð´Ð¸Ð¼ÑÑ Ð¿ÑÐ¾Ð»ÐµÑÐ½ÑÑ ÑÑÑÐ¾ÐµÐ½Ð¸Ð¹ Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ Ð¼Ð¾ÑÑÐ¾Ð² Ð² ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ð¸ Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹ Ð¸Ð½Ð´Ð¸Ð²Ð¸Ð´ÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð¼Ð½Ð¾Ð³Ð¾ÐºÑÐ°ÑÐ½Ð¾Ð¹ Ð¾Ð±Ð¾ÑÐ°ÑÐ¸Ð²Ð°ÐµÐ¼Ð¾ÑÑÐ¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½ÑÑ ÑÐ¾Ð¾ÑÑÐ¶ÐµÐ½Ð¸Ð¹, Ð²Ð¾Ð·Ð²Ð¾Ð´Ð¸Ð¼ÑÑ Ñ ÑÐµÐ»ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð´Ð¾ÑÐ¾Ð¶Ð½Ð¾Ð³Ð¾ Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð½Ð° Ð¿ÐµÑÐ¸Ð¾Ð´ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ ÐºÐ°Ð¿Ð¸ÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐµÐ¼Ð¾Ð½ÑÐ° Ð¸ ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¼Ð¾ÑÑÐ¾Ð²ÑÑ Ð¿ÐµÑÐµÑÐ¾Ð´Ð¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¸ Ð»Ð¸ÐºÐ²Ð¸Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ð¹ ÑÑÐµÐ·Ð²ÑÑÐ°Ð¹Ð½ÑÑ ÑÐ¸ÑÑÐ°ÑÐ¸Ð¹ Ð½Ð° Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ Ð´Ð¾ÑÐ¾Ð³Ð°Ñ ÐÐ»ÑÐ°Ð¹ÑÐºÐ¾Ð³Ð¾ ÐºÑÐ°Ñ.
description: The thesis aim is to determine the economic effect of the application of universal spans of temporary bridges in comparison with the using of individually designed structures under conditions of multiple turnover of materials of artificial structures made to organize temporary traffic during reconstruction bridges on the highways of Altai State Region. The research set the following goals: 1. To collect information about existing structures of universal spans of temporary bridges, to select the optimal variant. 2. To conduct an expert survey on the effectiveness of universal span structures for temporary bridges. 3. To estimate the economic efficiency of universal spans application in conditions of multiple turnover of materials.
A two-qubit Bell inequality for which POVM measurements are relevant
Creators: name: Vértesi, T.
name: Bene, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A bipartite Bell inequality is derived which is maximally violated on the two-qubit state space if measurements describable by positive operator valued measure (POVM) elements are allowed rather than restricting the possible measurements to projective ones. In particular, the presented Bell inequality requires POVMs in order to be maximally violated by a maximally entangled two-qubit state. This answers a question raised by N. Gisin.
description: 7 pages, 1 figure
Detailed atmospheric ice accretion surface measurement using micro-computed tomography
Creators: name: Velandia, Juan S.
name: Bansmer, Stephan E.
Publisher: name: FID GEO
Year: 2020

description: Surfaces exposed to atmospheric cold temperature and humid environments are prone to ice accretion. Airplanes, electrical power transmission cables, and wind turbines are typical examples for which icing has to be considered. The measurement of the resulting ice shapes is a challenging process. While macroscopic characteristics of the ice geometry can be observed using photography and optical scanning techniques, microscopic measurements are difficult to conduct because grooved surface partially occludes the geometry of chasms. To overcome this optical inaccessibility, we propose a method to carry out detailed high-resolution measurements of the accretion surface with micro-computed tomography. This approach provides a unique visualization of the empty spaces in the feather region. The information obtained by this technique can improve the understanding of ice accretion physics and its computational modeling.
title: ÐÑÐµÐ½ÐºÐ° Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð³ÑÐ°Ð½Ð¸ÑÐ½ÑÑ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ Ð½Ð° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ Ð¿ÑÐ¸ ÑÐµÐ¹ÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¼ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Assessment of the influence of boundary conditions on the stress-strain state of the dam under seismic influence
Creators: name: Ð ÐµÑÐµÑÐ½Ð¸ÐºÐ¾Ð²Ð°, ÐÐ»ÐµÐºÑÐ°Ð½Ð´ÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð³Ð¸Ð´ÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ðµ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ
ÐºÐ¾Ð½ÐµÑÐ½Ð¾ â ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½ÑÐ¹ Ð¼ÐµÑÐ¾Ð´
abaqus
Ð¿ÑÑÐ¶Ð¸Ð½Ñ Ð¸ Ð´ÐµÐ¼Ð¿ÑÐµÑÑ
Ð±ÐµÑÐºÐ¾Ð½ÐµÑÐ½ÑÐµ ÑÐ»ÐµÐ¼ÐµÐ½ÑÑ
interaction of the damâreservoirâbase system
hydrodynamic impact
finite element method
springs and dampers
infinite elements

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»ÑÑ ÑÐ¸ÑÐ»ÐµÐ½Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð±ÐµÑÐ¾Ð½Ð½Ð¾Ð¹ Ð³ÑÐ°Ð²Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ Ð¿Ð¾Ð´ Ð´ÐµÐ¹ÑÑÐ²Ð¸ÐµÐ¼ ÑÐµÐ¹ÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸. ÐÑÐ¾Ð¼Ðµ ÑÐµÐ¹ÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ ÑÑÐ¸ÑÑÐ²Ð°Ð»Ð¾ÑÑ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð¸Ðµ Ð²Ð¾Ð»Ð½ Ð² Ð²Ð¾Ð´Ð¾ÑÑÐ°Ð½Ð¸Ð»Ð¸ÑÐµ. ÐÐ¸Ð´ÐºÐ¾ÑÑÑ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð»Ð°ÑÑ Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¸Ð¼Ð¸ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ°Ð¼Ð¸, Ð° ÑÐ²ÐµÑÐ´Ð¾ÑÐµÐ»ÑÐ½Ð°Ñ ÑÐ°ÑÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ°Ð¼Ð¸, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ð¼ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¼Ñ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ð¾ÑÐµÐ½ÐºÐ° Ð³ÑÐ°Ð½Ð¸ÑÐ½ÑÑ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ Ð½Ð° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ. Ð¢Ð°Ðº Ð¶Ðµ Ð±ÑÐ»Ð¸ ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ñ Ð½ÐµÐ¾ÑÑÐ°Ð¶Ð°ÑÑÐ¸Ðµ Ð³ÑÐ°Ð½Ð¸ÑÐ½ÑÐµ ÑÑÐ»Ð¾Ð²Ð¸Ñ ÑÐ°ÐºÐ¸Ðµ ÐºÐ°Ðº: Ð¾ÑÑÐ¾Ðº Ð²Ð¾Ð»Ð½Ñ Ð½Ð° Ð±ÐµÑÐºÐ¾Ð½ÐµÑÐ½Ð¾ÑÑÑ; Ð²ÑÐ·ÐºÐ°Ñ Ð³ÑÐ°Ð½Ð¸ÑÐ° Ð² Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐ¸ÑÑÐµÐ¼Ñ. Ð Ð°ÑÑÐµÑÑ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ Ð¿Ð°ÐºÐµÑÐµ Abaqus.
description: In this paper, a numerical analysis of a concrete gravity dam under the influence of a seismic load was carried out. In addition to the seismic load, the propagation of waves in the reservoir was taken into account. The liquid was modeled by acoustic elements, and the solid-state part by elements corresponding to the stress-strain state. The boundary conditions for the stress-strain state of the dam are evaluated. Non-reflective boundary conditions were also implemented, such as: wave outflow at infinity; a viscous boundary at the base of the system. Calculations were carried out in the Abaqus software package.
Stokes tomography of radio pulsar magnetospheres. II. Millisecond pulsars
Creators: name: Chung, C. T. Y.
name: Melatos, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The radio polarization characteristics of millisecond pulsars (MSPs) differ significantly from those of non-recycled pulsars. In particular, the position angle (PA) swings of many MSPs deviate from the S-shape predicted by the rotating vector model, even after relativistic aberration is accounted for, indicating that they have non-dipolar magnetic geometries, likely due to a history of accretion. Stokes tomography uses phase portraits of the Stokes parameters as a diagnostic tool to infer a pulsar's magnetic geometry and orientation. This paper applies Stokes tomography to MSPs, generalizing the technique to handle interpulse emission. We present an atlas of look-up tables for the Stokes phase portraits and PA swings of MSPs with current-modified dipole fields, filled core and hollow cone beams, and two empirical linear polarization models. We compare our look-up tables to data from 15 MSPs and find that the Stokes phase portraits for a current-modified dipole approximately match several MSPs whose PA swings are flat or irregular and cannot be reconciled with the standard axisymmetric rotating vector model. PSR J1939+2134 and PSR J0437$-$4715 are modelled in detail. The data from PSR J1939+2134 at 0.61\,GHz can be fitted well with a current-modified dipole at $(α, i) = (22 \pm 2^\circ, 80 \pm 1^\circ)$ and emission altitude 0.4 $r_\text{LC}$. The fit is less accurate for PSR J1939+2134 at 1.414\,GHz, and for PSR J0437$-$4715 at 1.44\,GHz, indicating that these objects may have a more complicated magnetic field geometry, such as a localized surface anomaly or a polar magnetic mountain.
description: 38 pages, 33 figures, accepted for publication by MNRAS
De trás para a frente: um retrato da Universidade de Coimbra na formação de Professores de Biologia & Geologia
Creators: name: Soares, Diana R.
name: Abrantes, Isabel
name: Callapez, Pedro M.
name: Lopes, Betina
Publisher: name: Zenodo
Year: 2020

description: A Educação em Ciências é fundamental para responder e minimizar desafios globais e locais do presente e do futuro. Por isso, é necessário assegurar uma formação de qualidade dos professores de Biologia/Geologia, em Portugal e no Mundo. Neste capítulo apresentam-se os resultados e as conclusões da análise documental feita a 39 relatórios de estágio pedagógico de (futuros) professores de Biologia/Geologia produzidos entre 2009 e 2019, no âmbito do Mestrado em Ensino de Biologia e Geologia no 3.º Ciclo do Ensino Básico e no Ensino Secundário da Universidade de Coimbra. Estes relatórios podem ser considerados como um espaço de formação central no desenvolvimento profissional de um professor. Assim, numa perspetiva global do trabalho realizado pela Universidade de Coimbra na área da formação dos professores de Biologia/Geologia, ao longo de uma década, a análise de conteúdo foi determinante para a identificação de fatores que definem a escola de pensamento/identidade curricular da mesma. Esta análise foi baseada em três dimensões: 1) Área(s) de saber sustentador(es) (título e palavras-chave); 2) Estratégias e abordagens de ensino das ciências (resumo, metodologia e objetivos) e 3) Desenvolvimento profissional (resumo e conclusões). Os resultados demonstram que, na Universidade de Coimbra, a formação dos estudantes se destaca pela exemplar preparação ao nível do saber específico (dimensão 1); ainda existe uma reduzida utilização do relatório “V de Gowin” durante o estágio, apesar do forte investimento nesta estratégia ao nível das unidades curriculares do mestrado (dimensão 2). Verificou-se igualmente grande importância atribuída ao estágio pedagógico pelos estudantes para a iniciação do seu processo de desenvolvimento na prática docente (dimensão 3). Partindo da problematização dos resultados emergentes, são apresentadas interrogações específicas no âmbito da Educação em Ciências, nomeadamente sobre a relação estreita entre a formação inicial de professores e a necessidade de diversificar e comunicar ciência. Procura-se, desta forma, contribuir para transformar o Mundo através do ensino das Ciências Naturais, numa sociedade de justiça e igualdade, em que ninguém fica para trás.
Superionic state in double-layer capacitors with nanoporous electrodes
Creators: name: Kondrat, S.
name: Kornyshev, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In the recent experiments [Chmiola et al, Science 313, 1760 (2006); Largeot et al, J. Am. Chem. Soc. 130, 2730 (2008)] an anomalous increase of the capacitance with a decrease of the pore size of a carbon-based porous electric double-layer capacitor has been observed. We explain this effect by the image forces which exponentially screen out the electrostatic interactions of ions in the interior of a pore. Packing of ions of the same sign becomes easier and is mainly limited by steric interactions. We call this state `superionic' and suggest a simple model to describe it. The model reveals a possibility of a voltage-induced first-order transition between a cation(anion)-deficient phase and a cation(anion)-rich phase which manifests itself in a jump of capacitance as a function of voltage.
Berberisides A-D: three novel prenylated benzoic acid derivatives and a clerodane glycoside from Berberis tsarica aherndt.
Creators: name: Dong, Zhao-Yue
name: Zeng, Qing-Hong
name: Wei, Lin
name: Guo, Xin
name: Sun, Yan
name: Meng, Fan-Cheng
name: Wang, Guo-Wei
name: Lan, Xiao-Zhong
name: Liao, Zhi-Hua
name: Chen, Min
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Three undescribed prenylated benzoic acid derivatives berberisides A-C (1-3) and a new clerodane glycoside berberiside D (4) were isolated from Berberis tsarica Aherndt. Their structures were elucidated on the basis of extensive NMR and HR-ESI-MS analysis. The in vitro cytotoxic activities of all isolates were studied against lung carcinoma A549, hepatocellular carcinoma HepG2 and breast carcinoma MDA-MB-231 cell lines. Among them, compounds 1 and 4 exhibited anti-proliferative effects against three tumor cell lines with IC50 ranging from 28.97 ± 2.18 to 35.83 ± 0.72 μM.
title: Remarks Prepared for Delivery by Secretary of Transportation Elizabeth Hanford Dole, Airports Transfer Ceremony
Creators: name: Dole, Elizabeth Hanford
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1987
Subjects: classificationCode: https://trt.trb.org/term/90595
subject: Transportation safety
classificationCode: https://trt.trb.org/term/89768
subject: Transportation planning
classificationCode: https://trt.trb.org/term/88891
subject: Transportation policy

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/4
description: Remarks prepared for delivery by Secretary of Transportation Elizabeth Hanford Dole for the airports transfer ceremony at National Airport on June 8, 1987.
Simple proof of the quantum benchmark fidelity for continuous-variable quantum devices
Creators: name: Namiki, Ryo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An experimental success criterion for continuous-variable quantum teleportation and memories is to surpass a limit of the average fidelity achieved by the classical measure-and-prepare schemes with respect to a Gaussian distributed set of coherent states. We present a simple proof of the classical limit based on the familiar notions of the state-channel duality and the partial transposition. The present method enables us to produce a quantum-domain criterion associated with a given set of measured fidelities.
The Molecular Gas Content of z<0.1 Radio Galaxies: Linking the AGN Accretion Mode to Host Galaxy Properties
Creators: name: Smolcic, V.
name: Riechers, D. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: One of the main achievements in modern cosmology is the so-called `unified model', which successfully describes most classes of active galactic nuclei (AGN) within a single physical scheme. However, there is a particular class of radio-luminous AGN that presently cannot be explained within this framework -- the `low-excitation' radio AGN (LERAGN). Recently, a scenario has been put forward which predicts that LERAGN, and their regular `high-excitation' radio AGN (HERAGN) counterparts represent different (red sequence vs. green valley) phases of galaxy evolution. These different evolutionary states are also expected to be reflected in their host galaxy properties, in particular their cold gas content. To test this, here we present CO(1-0) observations toward a sample of 11 of these systems conducted with CARMA. Combining our observations with literature data, we derive molecular gas masses (or upper limits) for a complete, representative, sample of 21 z<0.1 radio AGN. Our results yield that HERAGN on average have a factor of ~7 higher gas masses than LERAGN. We also infer younger stellar ages, lower stellar, halo, and central supermassive black masses, as well as higher black hole accretion efficiencies in HERAGN relative to LERAGN. These findings support the idea that high- and low-excitation radio AGN form two physically distinct populations of galaxies that reflect different stages of massive galaxy build-up.
description: 8 pages, 4 figures, 4 tables; accepted for publication in ApJ
title: Remarks Prepared for Delivery by Associate Deputy Secretary of Transportation Jennifer L. Dorn, June 9, 1987
Creators: name: Dorn, Jennifer L.
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1987
Subjects: classificationCode: https://trt.trb.org/term/90595
subject: Transportation safety
classificationCode: https://trt.trb.org/term/89768
subject: Transportation planning
classificationCode: https://trt.trb.org/term/88891
subject: Transportation policy

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/4
description: Remarks prepared for delivery by Associate Deputy Secretary of Transportation Jennifer L. Dorn on June 9, 1987 in Indianapolis, Indiana.
Iniziare dove suoni, colori e volti sono diversi: buone pratiche per l’accoglienza e l’integrazione di bambini di lingua e cultura diversa nella Scuola dell’infanzia
Creators: name: Niggl, Anna Chiara
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2013

description: Il contesto sociale odierno è sempre più multiculturale e insegnare in una classe multiculturale e plurilingue è diventato nel tempo sempre più consueto. La ricerca qui presentata ha lo scopo di definire quali buone pratiche mettono in atto i docenti di scuola dell’infanzia per accogliere e di conseguenza integrare dei bambini provenienti da paesi di lingua e cultura rispetto alla Svizzera italiana. Al progetto hanno preso parte cinque insegnanti della scuola dell’infanzia, i quali hanno rilasciato un’intervista. L’analisi dei dati ha permesso di rilevare delle somiglianze e di individuare alcune buone pratiche messe in atto dai docenti. È emersa l’importanza della comunicazione e della collaborazione con i genitori. I genitori sono una risorsa rilevante per l’accoglienza del figlio, in quanto una loro partecipazione attiva alla vita scolastica del bambino e la creazione di un rapporto di fiducia con l’educatore, rasserena il bambino il quale si inserirà con più facilità. In generale la comunicazione è uno strumento fondamentale, attraverso la quale si ha la possibilità di creare uno spazio condiviso. Per un docente significa prevedere e organizzare dispositivi per dare risposte di qualità a nuovi problemi didattici, promuovere atteggiamenti di attenzione e apertura nei confronti degli altri. Anche il sostegno dei compagni e la collaborazione con persone specializzate, come i mediatori culturali e le docenti di lingua e integrazione, si sono rilevati degli aiuti fondamentali per integrare un bambino straniero alla scuola dell’infanzia. Relatori: Feliciana Fiscalini-Tocchetto e Sara Giulivi
Favorire il clima di classe e le relazioni sociali: il consiglio di cooperazione
Creators: name: Bonaventura, Priscilla
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: Questo lavoro di diploma tratta lo strumento del consiglio di cooperazione. Nello specifico si è cercato di comprendere la sua validità nella risoluzione dei conflitti di classe e di capire quali sono le opinioni dei bambini relative alla sua applicazione. La raccolta dei dati si basa principalmente sull’osservazione delle dinamiche di classe e sui vissuti degli allievi, esplicitati tramite risposte a questionari e durante le discussioni collettive. L’analisi dei risultati è stata effettuata secondo un approccio qualitativo, a partire dalle testimonianze dirette degli allievi che hanno vissuto l’esperienza. I dati sono stati, in un primo momento, da me esaminati e, successivamente, condivisi con la classe. Da una prima analisi dei commenti relativi al consiglio di cooperazione è emerso che gli allievi percepivano i momenti dedicati alla pratica soprattutto come occasione per esporre le proprie lamentele. Apportando delle regolazioni alla pratica adottata fin dall’inizio dell’anno, si sono ottenuti risultati differenti determinando un cambiamento in positivo e le relazioni interpersonali tra gli allievi sembrano migliorate. La ricerca vuole dunque dimostrare che, benché l’applicazione del consiglio di cooperazione non sia sufficiente per creare un clima di classe positivo, essa è un importante strumento a disposizione dell’insegnante. Relatrice: Daria Delorenzi Croci
Oganesson Is a Semiconductor: On the Relativistic Band-Gap Narrowing in the Heaviest Noble-Gas Solids
Creators: name: Mewes, Jan-Michael
name: Jerabek, Paul
name: Smits, Odile R.
name: Schwerdtfeger, Peter
Publisher: name: FID GEO
Year: 2019

description: Abstract Oganesson (Og) is the most recent addition to Group 18. Investigations of its atomic electronic structure have unraveled a tremendous impact of relativistic effects, raising the question whether the heaviest noble gas lives up to its position in the periodic table. To address the issue, we explore the electronic structure of bulk Og by means of relativistic Kohn–Sham density functional theory and many-body perturbation theory in the form of the GW method. Calculating the band structure of the noble-gas solids from Ne to Og, we demonstrate excellent agreement for the band gaps of the experimentally known solids from Ne to Xe and provide values of 7.1 eV and 1.5 eV for the unknown solids of Rn and Og. While this is in line with periodic trends for Rn, the band gap of Og completely breaks with these trends. The surprisingly small band gap of Og moreover means that, in stark contrast to all other noble-gas solids, the solid form of Og is a semiconductor.
Oblique Gravity Wave Propagation During Sudden Stratospheric Warmings
Creators: name: Stephan, C. C.
name: Schmidt, H.
name: Zülicke, C.
name: Matthias, V.
Publisher: name: FID GEO
Year: 2020

description: Gravity waves (GWs) are important for coupling the mesosphere to the lower atmosphere during sudden stratospheric warmings (SSWs). Here, a minor SSW is internally generated in a simulation with the upper-atmosphere configuration of the ICOsahedral Nonhydrostatic model. At a horizontal resolution of 20 km the simulation uses no GW drag parameterizations but resolves large fractions of the GW spectrum explicitly, including orographic and nonorographic sources. Consistent with previous studies, the simulated zonal-mean stratospheric warming is accompanied by zonal-mean mesospheric cooling. During the course of the SSW the mesospheric GW momentum flux (GWMF) turns from mainly westward to mainly eastward. Waves of large phase speed (40–80 m s −1) dominate the eastward GWMF during the peak phase of the warming. The GWMF is strongest along the polar night jet axis. Parameterizations of GWs usually assume straight upward propagation, but this assumption is often not satisfied. In the case studied here, a substantial amount of the GWMF is significantly displaced horizontally between the source region and the dissipation region, implying that the local impact of GWs on the mesosphere does not need to be above their local transmission through the stratosphere. The simulation produces significant vertically misaligned anomalies between the stratosphere and mesosphere. Observations by the Microwave Limb Sounder confirm the poleward tilt with height of the polar night jet and horizontal displacements between mesospheric cooling and stratospheric warming patterns. Thus, lateral GW propagation may be required to explain the middle-atmosphere temperature evolution in SSW events with significant zonally asymmetric anomalies.
title: Remarks Prepared for Delivery by Secretary of Transportation Elizabeth Hanford Dole, Annandale High School Commencement
Creators: name: Dole, Elizabeth Hanford
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1987
Subjects: classificationCode: https://trt.trb.org/term/90595
subject: Transportation safety
classificationCode: https://trt.trb.org/term/89768
subject: Transportation planning
classificationCode: https://trt.trb.org/term/88891
subject: Transportation policy

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/4
description: Remarks prepared for delivery by Secretary of Transportation Elizabeth Hanford Dole for the Annandale High School Commencement on June 11, 1987 in Washington, D.C.
Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
Creators: name: Karsch, Frithjof
name: Redlich, Krzysztof
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We calculate the first four moments of baryon number, electric charge and strangeness fluctuations within the hadron resonance gas model. Different moments and their ratios as well as skewness and kurtosis are evaluated on the phenomenologically determined freeze-out curve in the temperature, baryon chemical potential plane. The model results and its predictions as well as relations between different moments are compared with the first data on net proton fluctuations in Au-Au collisions obtained at RHIC by the STAR Collaboration. We find good agreement between the model calculations and experimental results. We also point out that higher order moments should be more sensitive to critical behavior and will also distinguish hadron resonance gas model calculations from results obtained from lattice QCD.
description: 20 pages, 11 EPS-files
Hydrodynamics of Resonances
Creators: name: Voskresensky, D. N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive system of equations describing fluidity of the medium consisting of non-relativistic particles with finite mass-widths. For that we use expressions for the kinetic Noether 4-current and the Noether energy-momentum tensor being conserved provided one uses self-consistent approximations to the gradient expanded Kadanoff-Baym equations. Kinetic coefficients entering equations of non-ideal hydrodynamics of resonances are obtained in terms of the real and imaginary parts of the self-energies within a relaxation time approximation.
title: Remarks Prepared for Delivery by Secretary of Transportation Elizabeth Hanford Dole, Ports and Terminals Conference
Creators: name: Dole, Elizabeth Hanford
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1987
Subjects: classificationCode: https://trt.trb.org/term/90595
subject: Transportation safety
classificationCode: https://trt.trb.org/term/89768
subject: Transportation planning
classificationCode: https://trt.trb.org/term/88891
subject: Transportation policy

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/4
description: Remarks prepared for delivery by Secretary of Transportation Elizabeth Hanford Dole for the Ports and Terminals Conference in New York, N.Y. on June 18, 1987.
title: ÐÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð°ÑÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ° Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ° Ð² ÐºÐ¾Ð½ÑÐµÐºÑÑÐµ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð¹ Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð¹ ÐºÑÐ»ÑÑÑÑÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Characteristics of African American English in the context of modern American culture
Creators: name: ÐÐ¾Ð»ÑÐ±, ÐÐ¸Ð°Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð°ÑÑÐ¸ÐºÐ°Ð½ÑÐºÐ¸Ð¹ Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¸Ð¹ Ð²Ð°ÑÐ¸Ð°Ð½Ñ Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ°
Ð¸ÑÑÐ¾ÑÐ¸Ñ Ð°ÑÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ°
Ð»ÐµÐºÑÐ¸ÐºÐ°
ÑÐ¾Ð½ÐµÑÐ¸ÐºÐ°
Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÐºÐ° Ð°ÑÑÐ¾Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ°
ÑÐ»ÐµÐ½Ð³
african american english
origin of a african american english
vocabulary
phonetics
grammar of african american english
slang

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ°Ð·Ð¾Ð±ÑÐ°Ð½Ð¾ Ð¿ÑÐ¾Ð¸ÑÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ðµ Ð°ÑÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ° Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ°. ÐÐ·ÑÑÐµÐ½Ñ Ð¸ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð¿ÑÐ¸Ð¼ÐµÑÑ ÑÐ¿Ð¾ÑÑÐµÐ±Ð»ÐµÐ½Ð¸Ñ Ð°ÑÑÐ¾Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ° Ð½Ð° Ð»ÐµÐºÑÐ¸ÑÐµÑÐºÐ¾Ð¼, ÑÐ¾Ð½ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¼ Ð¸ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¼ ÑÑÐ¾Ð²Ð½ÑÑ. ÐÑÑÐ²Ð»ÐµÐ½Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ¸Ñ Ð¼ÐµÐ¶Ð´Ñ Ð°ÑÑÐ¾Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¸Ð¼ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ¾Ð¼ Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ° Ð¸ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ½ÑÐ¼ Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¸Ð¼. ÐÑÑÑÐ½ÐµÐ½Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ½ÑÐµ Ð¾ÑÐ»Ð¸ÑÐ¸ÑÐµÐ»ÑÐ½ÑÐµ ÑÐµÑÑÑ Ð°ÑÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð°Ð¼ÐµÑÐ¸ÐºÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ° Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ°.
description: In the given work the origin of African American English is examined. Examples of the usage of African American English on the lexical, phonetical and grammatical levels are reviewed and analyzed. Difference between African American English and Standard English are revealed. Notable characteristics of African American English have been clarified.
Central uplift collapse in acoustically fluidized granular targets: Insights from analog modeling
Creators: name: Dörfler, M. A.
name: Kenkmann, T.
Publisher: name: FID GEO
Year: 2020

description: Depending on their sizes, impact craters have either simple or complex geometries. Peak-ring craters such as the Chicxulub impact structure possess a single interior ring of peaks and hills and a flat interior floor. The exact mechanisms leading to the formation of a morphological peak-ring are still a matter of debate. In this study, analog modeling was used to study the flow field of a collapsing central uplift. A 3-D-printed cast was used to bring the analog material in the shape of an overheightened central uplift that was based on numerical modeling. The cast was then quickly removed and the central peak collapsed, forming a flattened broad mound that spread out onto the annular moat of the crater cavity. A subwoofer was used to fluidize the granular target material. The kinematics of the collapse were analyzed with the aid of particle image velocimetry, revealing a downward and outward collapse of the central uplift. This mode of collapse is partly in agreement with numerical models, in particular for the initial and middle phases. The overthrusting of the collapsing central peak onto the inward moving crater floor predicted by numerical modeling was observed, though to a lesser degree. A peak-ring, however, could not be reproduced since the collapse came to a halt before the central peak was completely leveled. Nevertheless, the method provides qualitative insights into the kinematics of collapse phenomena. This experimental study provides independent support of the theory of acoustic fluidization, in addition to numerical simulations.
The Athena Astrophysical MHD Code in Cylindrical Geometry
Creators: name: Skinner, Aaron
name: Ostriker, Eve
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A method for implementing cylindrical coordinates in the Athena magnetohydrodynamics (MHD) code is described. The extension follows the approach of Athena's original developers and has been designed to alter the existing Cartesian-coordinates code as minimally and transparently as possible. The numerical equations in cylindrical coordinates are formulated to maintain consistency with constrained transport, a central feature of the Athena algorithm, while making use of previously implemented code modules such as the Riemann solvers. Angular-momentum transport, which is critical in astrophysical disk systems dominated by rotation, is treated carefully. We describe modifications for cylindrical coordinates of the higher-order spatial reconstruction and characteristic evolution steps as well as the finite-volume and constrained transport updates. Finally, we present a test suite of standard and novel problems in one-, two-, and three-dimensions designed to validate our algorithms and implementation and to be of use to other code developers. The code is suitable for use in a wide variety of astrophysical applications and is freely available for download on the web.
Quali influenze può avere l’allievo diversamente abile sul clima di classe: la percezione di 10 docenti con la presenza di bambini diversamente abili.
Creators: name: Cerutti, Gessica
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2011

description: La motivazione che mi ha portata a trattare un tema in cui è presente la problematica del diversamente abile, deriva da un’esperienza emotivamente impegnativa che ho vissuto. Attraverso questa ricerca qualitativa intendo indagare sulle influenze che la presenza del bambino diversamente abile ha sul clima della classe che lo accoglie di classe. Si rivela in realtà fondamentale, nelle modifiche del clima di classe, il ruolo del docente e la qualità di approccio che esso assume. Un atteggiamento di apertura risulta essere una strategia efficace per favorire un buon ambiente di classe. Il clima positivo e accogliente sembra essere un fattore per la riduzione degli effetti negativi del deficit. E’ inoltre fondamentale la scelta politica che attua la scuola nei confronti dell’integrazione di soggetti diversamente abili. La scelta assunta dalla politica scolastica ticinese rimette in gioco la struttura scolastica e i suoi operatori inducendo quest’ultimi a riflettere ulteriormente su forme di differenziazione e d’individualizzazione dell’insegnamento. Troppo spesso, nella nostra società, il soggetto diversamente abile viene considerato esclusivamente per la sua incapacità o per il suo deficit, non per le abilità che esso possiede. Modello di abstract 2/2 La speranza della scuola è di riscontrare un giorno il superamento di questa visione negativa che svaluta la persona, un intento perseguito educando al rispetto e alla collegialità. Relatore: Aurelio Crivelli
Spectroscopic survey of M--type asteroids
Creators: name: Fornasier, S.
name: Clark, B. E.
name: Dotto, E.
name: Migliorini, A.
name: Ockert-Bell, M.
name: Barucci, M. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: M-type asteroids, as defined in the Tholen taxonomy (Tholen, 1984), are medium albedo bodies supposed to have a metallic composition and to be the progenitors both of differentiated iron-nickel meteorites and enstatite chondrites. We carried out a spectroscopic survey in the visible and near infrared wavelength range (0.4-2.5 micron) of 30 asteroids chosen from the population of asteroids initially classified as Tholen M -types, aiming to investigate their surface composition. The data were obtained during several observing runs during the years 2004-2007 at the TNG, NTT, and IRTF telescopes. We computed the spectral slopes in several wavelength ranges for each observed asteroid, and we searched for diagnostic spectral features. We confirm a large variety of spectral behaviors for these objects as their spectra are extended into the near-infrared, including the identification of weak absorption bands, mainly of the 0.9 micron band tentatively attributed to orthopyroxene, and of the 0.43 micron band that may be associated to chlorites and Mg-rich serpentines or pyroxene minerals such us pigeonite or augite. A comparison with previously published data indicates that the surfaces of several asteroids belonging to the M-class may vary significantly. We attempt to constrain the asteroid surface compositions of our sample by looking for meteorite spectral analogues in the RELAB database and by modelling with geographical mixtures of selected meteorites/minerals. We confirm that iron meteorites, pallasites, and enstatite chondrites are the best matches to most objects in our sample, as suggested for M-type asteroids. The presence of subtle absorption features on several asteroids confirms that not all objects defined by the Tholen M-class have a pure metallic composition.
description: 10 figures, 6 tables; Icarus, in press
Automatic sleep stage classification using multitaper spectral estimation, wavelet transform and neural network
Creators: name: Ranaweera, Jayasanka Anushka
Publisher: name: University of British Columbia
Year: 2024

description: Laboratory Polysomnography (PSG) is conducted using American Academy of Sleep Medicine (AASM) guidelines to diagnose sleep disorders, which has several limitations. In particular, the manual scoring process used for annotation of sleep stages is highly subjective, inefficient, and very time consuming. Therefore, the main objective of the present research is to automate the sleep stage classification process. The designing process of the automated system developed in the present thesis is based on five experiments, and utilizes a professionally annotated PSG data base of 994 patients and Feed Forward Neural Networks (FNN). It has been evident from the initial experimental results that the Composite Multiscale Sample Entropy (CMSE) feature does not have the potential to distinguish sleep stages as it only produced an overall accuracy of 61%. The present work uses the new frequency band information feature that has been specified in the AASM manual. This has in a much improved accuracy of 71% for the sleep stage classification. The frequency band information extracted with Multitaper algorithm has produced an accuracy of 76.8% (~77%) indicating that the Multitaper algorithm produces more accurate spectral estimations than the previous Fast Fourier Transform (FFT) algorithm. The experimental results obtained from the hybrid feature vector have an overall accuracy of 80.1% for sleep stage classification, which is a 19% improvement over that of the initial experiment. The experimental results also conclude that hybrid feature vectors that are for sleep stage classification are more effective than individual features. Finally, the model prediction analysis conducted using different threshold values has produced a significant overall accuracy of 96.8% (~97%) for the sleep stage classifier. The present work verifies that the finalized model has a better potential in sleep stage classification than that in previous studies and has improved control over the prediction accuracy levels permitted at the model output.
title: Ð¢ÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð´ÐµÑÐ°Ð»Ð¸ Â«Ð¨ÐµÑÑÐµÑÐ½Ñ ÐºÐ¾ÑÐ¾Ð±ÐºÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÂ»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The manufacturing process of the gearbox gear part using CNC equipment
Creators: name: Ð¢ÑÐµÑÐºÐ¸Ð½, ÐÐ¼Ð¸ÑÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð²ÑÑÐ»ÐºÐ°
ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ
Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ñ
Ð´ÐµÑÐ°Ð»Ñ
Ð·Ð°Ð³Ð¾ÑÐ¾Ð²ÐºÐ°
Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½Ñ
Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ðµ Ð¿ÑÐ¸ÑÐ¿Ð¾ÑÐ¾Ð±Ð»ÐµÐ½Ð¸Ðµ
ÑÑÐ°Ð½Ð¾ÑÐ½Ð¾Ðµ Ð¿ÑÐ¸ÑÐ¿Ð¾ÑÐ¾Ð±Ð»ÐµÐ½Ð¸Ðµ
ÑÐ°ÑÐ¾Ð½Ð½ÑÐ¹ ÑÐµÐ·ÐµÑ
bushing
process
operation
part
workpiece
tool
engineering
measurement device
machine-tool
a shaped cutter

description: Ð Ð¿ÐµÑÐ²Ð¾Ð¼ ÑÐ°Ð·Ð´ÐµÐ»Ðµ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ° Ð¿ÑÐ¾Ð²ÐµÐ´ÑÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐ½Ð¾ÑÑÐ¸ Ð´ÐµÑÐ°Ð»Ð¸ Â«Ð¨ÐµÑÑÐµÑÐ½Ñ ÐºÐ¾ÑÐ¾Ð±ÐºÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÂ», Ð²ÑÐ±ÑÐ°Ð½ ÑÐ¿Ð¾ÑÐ¾Ð± Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð·Ð°Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð´ÐµÑÐ°Ð»Ð¸, Ð²ÑÐ±ÑÐ°Ð½Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ ÑÐµÐ¶ÑÑÐ¸Ð¹ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½Ñ Ð´Ð»Ñ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð´ÐµÑÐ°Ð»Ð¸, Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÑÐ½ ÑÐ°ÑÑÑÑ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² ÑÐµÐ·Ð°Ð½Ð¸Ñ Ð¸ Ð½Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð¹.
ÐÐ¾ Ð²ÑÐ¾ÑÐ¾Ð¼ ÑÐ°Ð·Ð´ÐµÐ»Ðµ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ° Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð¿Ð¾ÑÑÐ´Ð¾Ðº ÑÐ°ÑÑÑÑÐ° Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð¸ÑÐºÐ¾Ð²Ð¾Ð³Ð¾ ÑÐ°ÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ ÑÐµÐ·ÑÐ°.
Ð ÑÑÐµÑÑÐµÐ¼ ÑÐ°Ð·Ð´ÐµÐ»Ðµ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð¾ Ð¿Ð½ÐµÐ²Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¿ÑÐ¸ÑÐ¿Ð¾ÑÐ¾Ð±Ð»ÐµÐ½Ð¸Ðµ Ð½Ð° ÑÐ¾ÐºÐ°ÑÐ½ÑÐµ Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð¸
description: In the first section of the final qualifying work of the bachelor of the analysis of the manufacturability of the part "Gear transmission", the selected method of harvesting, the development of technological process of manufacturing detail, selected equipment and cutting tools for manufacturing, the calculation of modes of cutting and rationing operations.
In the second section of the bachelor's final qualifying work, the procedure for calculating and designing a disk shaped cutter is presented.
In the third section of the bachelor's final qualification work, a pneumatic device for turning.