Public Articles
Paper 2 Reliability and maintenance
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Métodos Matemáticos II Apunte del Curso 11Cuakquier error en el apunte por favor enviar un mail a cualquiera de los siguientes correos: [email protected] [email protected] [email protected] [email protected]
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Collaborative robotics and field deployment
The ISOLDE LEGO® Robot: Playing with nuclear physics or The ISOLDE LEGO® Robot: Building interest in nuclear physics ?
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An outreach programme centred around nuclear physics making use of a LEGO Mindstorm kit is presented. It consists in a presentation given by trained undergraduate students as science ambassadors followed by a workshop where the target audience manipulates the LEGO Mindstorm robots to familiarise themselves with the concepts in an interactive and exciting way. This programme has been coupled to the CERN-ISOLDE 50th anniversary and the launch of the CERN-MEDICIS facility in Geneva, Switzerland. The modular aspect of the programme readily allows its application to other topics.
Without Data, Are We Just Telling Nice Stories?
"If people had deposited raw data and full protocols at the time of publication, we wouldn’t have to go back to the original authors," says Iorns. That would make it much easier for scientists to truly check each other’s work.- The Atlantic
État des travaux
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Approaches to KBE Design
Collaborative learning environments generally follow either of two models. One is a message model, derived from e-mail and bulletin boards and extended to threaded discussions. “The most common element... is the discussion forum” that “allows people to respond to notes posted by one another. Typically there is a thread of responses to posted notes, with a tree of divergent opinions” (Stahl, 2000). In this model, messages appear in a serial or downward-branching order, as they do in conversation; they are typically unmodifiable - in fact, the only thing participants can do with them is respond with other messages. The other is a folder model, based on the familiar Macintosh and Windows desktops, expanded to accommodate shared folders. In this model the basic units are notes or documents, with some affordances for annotation, and the organizational framework is that of a filing cabinet. Neither of these models is based on any theory of learning, knowledge creation, or collaborative action. Instead, their basis is technical-taking an existing technology and repurposing it to serve educational needs.
[…] A focus on toolsets is especially unfortunate if it is constrained by arbitrary characteristics of message- and folder-based technologies. There has been one short-lived effort to design the KBE “killer ap” through agreement on a set of interoperable tools that would combine to constitute such an application. A component-oriented approach to software design makes good sense at the programming level, but when applied at the level of functional design it tends to result in what critics call “featuritis” - a proliferation of individually attractive features that cumulatively defeat the basic purpose of the software.
[…] There are vast differences between CSILE’s oft-cited components, and implementations in other environments. For example, its knowledge building discourse, including co-authorship of notes and views, is fundamentally different from threaded discussion; its scaffolds differ in design, function, and goals from the prompts, hints, and templates that are referred to as scaffolds in other environments; its community knowledge spaces reflect the socio-cultural underpinnings of idea advancement, designed to support the central workings of knowledge creating organizations, with ideas living and growing there. Knowledge Forum® (second-generation CSILE) reflects the further development of knowledge building theory based on extensive research with CSILE. It adds a second layer of knowledge building activity in the form of rise-above notes and views that encourage higher-order knowledge constructions, means for representing ideas in multiple contexts, and coherence-producing resources such as automatic referencing and linking of notes from different views and external sources.
Nonlinear Dimensionality Reduction by Locally Linear Embedding
This report will explain the article written by Sam T. Roweis and Lawrence K. Saul about the Locally Linear Embedding (LLE) algorithm used for the analysis and visualization of big amounts of data. This document called Nonlinear Dimensionality Reduction by Locally Linear Embedding and published at the American Association for the Advancement of Science in 2000, shows how the use of this algorithm improves the problem of dimensionality reduction mapping the inputs into a coordinate to be applied in nonlinear manifold data.
Sam T. Roweis, associate professor in Department of Computer Science at the University of Toronto since 2006, is a Research Scientist & Consultant for Google. And Lawrence K. Saul, professor in Department of Computer Science and Engineering at the UC San Diego since 2006, is now focused on applications of machine learning to problems in computer systems and security.
Hard X-Ray Emission from Partially Occulted Solar Flares
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Where is the centroid of a half-\(n\)-ball?
At Centroids of semicircles and hemispheres, Nick Berry deduces the formulas for coordinates of a centroid of a unit half-circle and a half-ball (in 3D) centered at origin. In fact, he does it for general r, but since only the ratio with r is important at the end, we can without loss of generality assume r = 1. Of course, only one coordinate is nontrivial (the one in which the ball is sliced in half), the rest are zeros. He expresses his surprise at the fact that the half-circle has an irrational coordinate for the centroid, while the half-ball has a rational one. Since deducing general patterns from just 2 samples is very error-prone, we’ll explore the situation in higher dimensions, to see whether irrational or rational centroid coordinate is a surprising—or perhaps none of them are.
The formula for the centroid coordinates is well-known: every coordinate is the average value of that coordinate accross all the points in the body, usually computed via an integral. Also, the integral can be calculated with respect to the coordinate itself, giving the formula
\begin{equation} C_i = \frac{\int x_iS_i(x_i)\,dx_i}{\int S_i(x_i)\,dx_i} \end{equation}
Durée antibiothérapie des maladies courantes, dernières recommandations Infections SNC
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Chemistry Project
This experiment involves an Iodine clock reaction, using Peroxidisulfate(VI) ions and Iodide ions in solution to form Sulfate(VI) ions and iodine: \begin{equation}
S_2O_8^{2-}(\textup{aq}) + 2I^-(\textup{aq})\rightarrow SO_4^{2-}(\textup{aq})+I_2(\textup{aq})
\end{equation} As both of the reactants are colourless, the progress of the reaction is shown by the blue colour of the Iodine. If starch is added, this becomes clear.
To measure the rate of the reaction, the time for a set amount of Iodine to be produced can be measured. To do this, Thiosulfate(VI) ions were added to the reaction mixture. These turn Iodine back into Iodide ions, so no Iodine will be evident until all the Thiosulfate is used up. \begin{equation}
2S_2O_3^{2-}(\textup{aq})+I_2(\textup{aq})\rightarrow S_4O_6^{2-}(\textup{aq})+2I^-(\textup{aq})
\end{equation} This will result in a sudden blue colour. The time for this colour to appear will be quantified as the rate of the reaction.
Title
Topics for Physics Lab Works Using X-ray Microtomography and Micro-Diffraction
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EncoMPASS: an Encyclopedia of Membrane Proteins Analyzed by Structure and Symmetry
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How to compose a scholarly article in Authorea
Protein expression as an environmental assay in two commercial aquaculture species
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Metadata, logs, i.e. how to make sure that you or someone else can repeat the data analysis or the experiment
Using the ACRL Framework to engage Faculty
DRAFT Proposal Summary for FSH 521
Overview: This project seeks to elucidate Ostrea lurida's potential for phenotypic plasticity by examining transgenerational inheritance in response to dual climate stressors.Intellectual merit: A broadening body of work indicates that low pH and high temperature negatively affect fertilization and early life stages of many marine invertebrates. Oyster may, however, contain a unique capacity to keep pace with rapidly shifting climate stressors. Still unknown, however, are the persistence of these adaptations through the generations, and the underlying mechanisms by which inheritance occurs. This project seeks to answer these questions.Broader Impacts:This research will explore new territory of O. lurida epigenetic and transgenerational inheritance of climate stressor resiliency, with the primary goal to inform commercial and restoration hatchery breeders to select for OA- and high temperature-resilient oysters, or to induce an multi-generational “immune-like” response by exposing broodstock to future climate conditions.
Background- Oysters are ecologically vital to intertidal communities; oysters and ecosystem engineers- Oysters are economically vital to many coastal communities in the United States, France, Australia, etc.- Oysters aquaculture is extremely sustainable, and the industry has been identified as a NOAA priority, necessary to provide sufficient, efficient, and healthy protein sources in the future. See NOAA Marine Aquaculture Strategic Plan 2016-202- Ocean acidification and rising ocean temperatures threaten many marine organisms. Calcifying invertebrates are at risk, and there has been a surge of research seeking to understand how populations will change in response to climate projections. Most research identifies fertilization and larval stages as the “bottleneck.” Oysters are intertidal animals, experiencing extreme environmental changes. As such, researchers are exploring how oyster genetic polymorphism, generational shifts due to Sweepstakes Reproductive Hypothesis, and epigenetic transfer of environmental memory may allow for rapid adaptation and resiliency to climate stressors.Rationale: Researchers hypothesize that epigenetic mechanisms (methylation, histone modification, non-coding RNA, transposable elements) may increase the plasticity of oysters. Unknown is a direct linking of differential epigenomes, induced by climate stressor treatments, and rates of survival, reproductive success, and subsequent generational transfer of these successful epigenetic markers.Goals/Questions- Do brooding oysters respond to climate stressors via epigenetic mechanism? If so, which ones? DNA Methylation, Histone Modification, lncRNA, transposable element expression, or other?- Do different epigenomes (in response to OA and high T) correspond to fecundity?- Are epigenetic traits passed on to their progeny?- Can memory of environmental stress persist through generations? If so, what is the mechanism? Do they increase or decrease fecundity and resiliency in first or second, and/or third generations?Approach- In early winter 600 O. lurida hatchery-born (F1) individuals from known lineages will divided into 2 separate flow-through seawater culture tanks, and conditioned for ~6 weeks in two temperatures: ambient (~8degC), and high (~12degC).- Directly subsequent to the temperature treatments, individuals will be moved into two pCO2 treatments and conditioned for ~6 weeks @ ambient temperature (~8degC): ambient (~400ppm), and high (~1000ppm). In both treatments water temperature will be gradually increased to ~10degC.- Directly subsequent pCO2 treatments, oysters will be conditioned in “separate but equal” culture tanks, fed well, and temperature gradually increased to ~14degC, and monitored for spawning activity. Larvae from each treatment group will be collected and reared. Post settlement, oysters will be grown off-dock in ambient conditions, until the following season when the experiment will be repeated with these experimentally produced F2 individuals.- Broodstock gonads & whole-body larvae will be sampled for:* DNA* Genetic variation* Protein?* RNATranscriptomeBisulfite treated for methylationHistone ModificationTransposable element location and expressionOutputs- SAFS Thesis- Publication- Guideline memo to restoration and commercial hatcheries on potential method of selecting for climate-resilient family lines.Budget: TBDBudget Justification (1 page): TBDReferences: TBD
Tribuo: a web platform for managing your Dance Marathon
Sample of Science and Authorea Partner for Better Writing Experience
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