439 Matching Annotations
  1. Mar 2019
    1. Edutech wiki This page has a somewhat messy design and does not look very modern but it does offer overviews of many topics related to technologies. Just like wikipedia, it offers a good jumping off point on many topics. Navigation can occur by clicking through categories and drilling down to topics, which is easier for those who already know the topic they are looking for and how it is likely to be characterized. Rating 3/5

  2. www.pblworks.org www.pblworks.org
  3. Feb 2019
    1. g likelihood or Bayesian probabilistic phylogene

      If you have a molecular data partition, you can just use total evidence approach and the standard 1-parameter Markov model.

      Potential synapomorphies will be compatible with the molecular tree and considered not likely to change. Potential homoiologies and symplesiomorphies are partly ("semi-")compatible with the molecular tree and, hence, considered less likely to change than highly homoplastic traits with (random) convergence.

      Just try out a couple of datasets, and infer the (Bio)NJ and ML trees and then compare the result with the strict consensus network (not tree) of all equally parsimonious trees and the Bayesian tree sample.

      Note that if you apply TNT's iterative character weighting procedure, what you effectively do is sorting the random convergences from parallelisms/ characters that are more compatible with the preferred tree.

    2. In principle, I do sympathize with the general idea, but the laid out approach will have little use.

      The main drawback is that you can only define homoiologies using an external data set (e.g. the molecular "gold" tree). But when you have a reliable molecular tree, you can just go for total evidence approaches to select a more likely, in a mathematical and general sense, alternative without the need to make any prior destinction between your characters. Homoiologies will be inferred, like synapmorphies or symplesiomorphies or shared apomorphies (non-stochastically distributed convergences) on the fly.

      If you define the homoiologies on a inferred (e.g. parsimony) tree only based on a morphological data matrix (e.g. for an extinct group of organisms), you will inevitably misinterpret some characters, because your clades are not necessarily monophyletic. Homoiologies like symplesiomorphies may appear as (pseudo-)synapomorphies.

      The only application left would be that the molecular tree cannot resolve certain relationships, and we use more tree-compatible morphological characters to discern between alternatives. However, the first choice would then be to maximise the number of synapomorphies. Only if that would be the same for all alternatives, one could count the number of symplesiomorphies and homoiologies (as the distinction between both via a tree-inference is very tricky; and their are often just two side of the same evolutionary process).

      However, one could also just directly change to a network-analysis framework, which will pretty much solve all these problems at once.

      For further details see my (upcoming, March 4th) post at Genealogical World of Phylogenetic Networks

  4. Jan 2019
    1. For graduate teaching assistants, this is the time when we introduce ourselves, lay out our expectations, and, hopefully, establish the tone and level of authority that we want to convey throughout the term.

      Good advice for the first day back to school for anyone looking for new ideas.

    1. More forcefully than in any other single class, I realized the importance of universal design for learning (UDL). This curricular design features privilege multiple access points for learning, engagement, and assessment. As Dr. Jennifer Stone puts it, “designing on the front end” with UDL minimizes the need for individual learners to make a special request.

      The incorporation of UDL practices is important for all students.

  5. Nov 2018
    1. Instructional Design Strategies for Intensive Online Courses: An Objectivist-Constructivist Blended Approach

      This was an excellent article Chen (2007) in defining and laying out how a blended learning approach of objectivist and constructivist instructional strategies work well in online instruction and the use of an actual online course as a study example.

      RATING: 4/5 (rating based upon a score system 1 to 5, 1= lowest 5=highest in terms of content, veracity, easiness of use etc.)

    1. Distance Education Trends: Integrating new technologies to foster student interaction and collaboration

      This article explores the interaction of student based learner-centered used of technology tools such as wikis, blogs and podcasts as new and emerging technology tools. With distance learning programs becoming more and more popular, software applications such as Writeboard, InstaCol and Imeem may become less of the software of choice. The article looks closely at the influence of technology and outcomes.

      RATING: 4/5 (rating based upon a score system 1 to 5, 1= lowest 5=highest in terms of content, veracity, easiness of use etc.)

  6. Mar 2018
    1. Complexity Theory replaces simple causality with an emphasis on networks, linkages, holism, feedback, relationships and interactivity in context, emergence, dynamical systems, self-organization and an open system, rather than the closed world of the experimental laboratory. Even if we could conduct an experiment, its applicability to ongiong, emerging, interactive, relational, changing, open situations, in practice, may be limited. It is misconceived to hold variables constant in a dynamical, evolving, fluid, open situation.

  7. Apr 2017
    1. research design

      Yes, but is it about being taught research design as if it is a thing or diving into it from all angles to see if there might be alternatives to the traditional way of doing it. I don't think we do enough exploration of the methods themselves. Needs to be more post-structural skepticism of method but integrated with the fact that we stil have to do it, how can we do it differently? I don't think enough coursework on exploratory methods/experimental methods and what the challenges they are trying to overcome are...

  8. Feb 2017
  9. Jun 2016
    1. p. 69

      "In the learning environments of classrooms and schools, students are exposed to and perceive various messages about the purposes of achievment. For example, students can perceive that in their classroom or school, there is an emphasis on learning, understanding, and improvment (a mastery goal structure). Similarly, they can perceive messages that suggest that getting the highest grades on the test and outperforming their classmates are valued most in the classroom or school (a performance goal structure). Sometimes, these perceptions are influenced by teacher practices that emphasize a mastery or performance goal structure, such as when teachers post only the work of the highest achieving students in the class (performance-goal-oriented instructional practices)."

  10. Aug 2015

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  11. Jul 2015
    1. gray matter

      Gray matter should not be in the name here. You cannot distinguish gray matter from white matter tissue preparation in any meaningful sense. The gray matter/white matter distinction should derive from the anatomical structure being assayed.

  12. Jan 2014
    1. A rigorous understanding of these developmental processes requires automated methods that quantitatively record and analyze complex morphologies and their associated patterns of gene expression at cellular resolution.

      Rigorous understanding requires automated methods using quantitative recording and analysis.

  13. Oct 2013
  14. Sep 2013