5,929 Matching Annotations
  1. Apr 2022
    1. We are 99% confident that the true average “attitude” difference betweenliving environments is between 1.32 and 7.88. At a significance level of 0.01we can say that living in a minority environment is associated with higherscore

      99% confident that the true average (result) is between these two numbers;

      at 1% (0.01) significance, we can scientifically assume there is a causal relationship

  2. Mar 2022
    1. A test case is a series of actions that are performed to determine a specific function or functionality of your application. Test scenarios are rather vague and include a wide range of variables. However, testing is all about being very specific. That is why we need elaborate test cases.

      Test cases, examples and Best Practices A test case is a series of actions that are performed to determine a specific function or functionality of your application. Test scenarios are rather vague and include a wide range of variables. However, testing is all about being very specific. That is why we need elaborate test cases.

    1. Dr Ellie Murray, ScD. (2022, January 6). School & university administrators, as you grapple with this week’s decisions, spare some time to think about how to delay next January’s start date to Jan 16 2022. Do you need to extend into summer? Change course lengths? Figure it out because this is going to happen again! [Tweet]. @epiellie. https://twitter.com/epiellie/status/1478921243961274370

    1. Logseq 作为笔记软件走的是和 Obsidian 较为不同的路子,虽然也是本地优先、支持插件,但是整体来说和 Roam Research 更为相似,功能丝毫不比 Roam Research 弱,版本更新较为频繁,BUG 修复也较为迅速。logseq 可以和 Obsidian 加载同一个库,需要注意的是一些语法的污染和 logseq 大纲笔记的形式。

      just test

  3. Feb 2022

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    1. 作为一款将 News Feed 作为首页的 App,Instagram 为什么没有“转发”功能?“转发”不是能够加速信息流动,也给好的照片带来更多曝光吗?但这只是短期效果,长期来看,“转发”又会将 Instagram 社区塑造成什么?

      test

    1. This article is for those who want to keep traveling despite restrictions due to covid. Basically giving tips on how to navigate the multiple governmental restrictions and policies including links to airline or country websites for choosing destinations. Because of this trend in travel advice in covid times, we may see attitudes towards travel shift to travel knowing the risks involved (quarantine, masks requirements, etc.) and hence see tourism rise again. Last minute covid holiday packages. What if the trend for remaining home also stayed the same for next five years and the adventure seekers become the avatars for the folks who want to stay at home.

      The crisis is changing the way how people will enjoy their international holiday, with an extra concern on testing and quarantine expenses and risk taking. That may have an impact on the tourism market, asking the airline companies to provide flexible policies /products and may witness the booming of travel insurance market.

  4. Jan 2022
    1. Dr. Thrasher wrote a book! (2022, January 8). My cousin wanted to get tested. She waited in an auto testing line for 6.5 hours, and stayed in it bc she was traveling to bury her Daddy. How many people give up in such long lines? How many cases upwards of a million are we losing bc Biden et all failed on home tests? Https://t.co/Q7WVy5qD4v [Tweet]. @thrasherxy. https://twitter.com/thrasherxy/status/1479826389142491146

    1. Depuis longtemps, je suis d’avis que la rigueur d’un cours ne se mesure pas à la quantité de connaissances dont l’enseignant fait étalage, mais aux apprentissages que les étudiants font.

      Which can lead to an assessment of pedagogical efficacy. It's funny, to me, that those who complain about "grade inflation" (typically admins) rarely entertain the notion that grades could be higher than usual if the course went well. The situation is quite different in "L&D" (Learning and Development, typically for training and professional development in an organizational context). "Oh, great! We were able to get everyone to reach the standard for this competency! Must mean that we've done something right in our Instructional Design!"

  5. Dec 2021
    1. El púlsar binario PSR J0737 como banco de pruebas de la relatividad general Por Francisco R. Villatoro, el 16 diciembre, 2021. Categoría(s): Astronomía • Ciencia • Física • Noticias • Physics • Relatividad • Science ✎ 3

      l púlsar binario PSR J0737 como banco de pruebas de la relatividad general Por Francisco R. Villatoro, el 16 diciembre, 2021. Categoría(s): Astronomía • Ciencia • Física • Noticias • Physics • Relatividad • Science ✎ 3

      Hulse y Taylor recibieron el Premio Nobel de Física en 1993 por su estudio del púlsar binario PSR B1913+16 (el primero que se descubrió en 1974), que observó de forma indirecta la emisión de ondas gravitacionales. Se publica en Physical Review X un análisis similar del púlsar binario PSR J0737−3039A/B, descubierto en 2003. El púlsar binario PSR J0737 es un banco de pruebas único para el estudio de la relatividad general ya que está situado a solo dos mil años luz de la Tierra, ambas estrellas de neutrones se observan como púlsares y su inclinación orbital es muy próxima a 90 °, luego se puede observar cómo el espaciotiempo curvo del plano orbital modifica los pulsos emitidos. Las observaciones durante 16 años de la precesión del periastro siguen la fórmula de la emisión gravitacional cuadripolar de Einstein con un error menor del 0.013 % (el resultado obtenido tras 2.5 años de observaciones tenía un error del 0.05 % y se publicó en 2006 en Science). Sin lugar a dudas un púlsar binario que habrá que seguir durante las próximas décadas para mejorar estas estimaciones.

      Además de probar la fórmula cuadripolar de Einstein, se ha probado el retraso debido al efecto de Shapiro (en un espaciotiempo curvo las señales de radio viajan durante más tiempo y las observamos retrasadas). También se han realizado otras pruebas de la relatividad que hasta ahora no se habían podido realizar con otros púlsares binarios. Por ejemplo, se ha medido la deformación relativista de la órbita (debido al acoplamiento relativista entre el espín (rotación de las estrellas de neutrones) y el momento angular de su órbita). En estas pruebas los resultados tienen mucha mayor incertidumbre, pero en todos los casos son compatibles con las predicciones de la relatividad general de Einstein. Esta teoría, a la que muchos físicos quieren matar cuanto antes, además de muy bella es muy robusta y promete reinar en la física durante muchas décadas.

      El artículo es M. Kramer, I. H. Stairs, …, G. Theureau, «Strong-field Gravity Tests with the Double Pulsar,» Physical Review X 11: 04150 (13 Dec 2021), doi: https://doi.org/10.1103/PhysRevX.11.041050, arXiv:2112.06795[astro-ph.HE] (13 Dec 2021); más información divulgativa en Lijing Shao, «General Relativity Withstands Double Pulsar’s Scrutiny,» Physics 14: 173 (13 Dec 2021) [web].

      Una manera de destacar la excepcionalidad del púlsar binario PSR J0737 es compararlo con el famoso PSR B1913, que ha sido estudiado durante 35 años. Esta figura muestra la precesión del periastro de la órbita; la diferencia en la densidad de puntos entre 0 y −20 es notable. Así se explica que el nuevo resultado para PSR J0737 tras 16 años tenga un error menor del 0.013 %, cuando para PSR B1913 solo se alcanzó el 0.2 %; por cierto, para las fusiones de agujeros negros observadas por LIGO-Virgo el error típico ronda el 20 %. No le he dicho, pero supongo que sabrás que el periastro de una órbita elíptica es el punto donde la distancia entre ambos cuerpos es mínima; se llama perihelio cuando uno de los cuerpos es el Sol y perigeo cuando es la Tierra. El fenómeno que mide esta figura es análogo a la precesión del perihelio de la órbita de Mercurio, que Einstein usó como guía hacia la formulación correcta de su teoría de la gravitación.

      ASTROFÍSICACIENCIAEXPERIMENTOFÍSICANOTICIASPÚLSARTEORÍA DE LA RELATIVIDAD GENERAL

      3 Comentarios Mario dice: 17 diciembre, 2021 a las 5:10 pm Francis Hay una frase que no entiendo, favor revisar: «…,luego sus señales se observa cómo el espaciotiempo curvo del plano orbital modificada la señal que observamos». Atte Mario

      RESPONDER Francisco R. Villatoro dice: 17 diciembre, 2021 a las 9:15 pm Gracias, Mario.

      RESPONDER Mario dice: 19 diciembre, 2021 a las 10:07 pm Francis, entiendo que por el efecto shapiro las señales de radio se ven retrasadas; pero para notar tal retraso tiene que haber una referencia. Cuál es esa referencia?

      RESPONDER Deja un comentario

    1. For the evaluation of thermal stability, each separator was positioned between slide glasses and subjected to certain tensile shear stress. Then, the temperature was raised to 150℃ and 180℃ at 5℃·m−1, and both separators were kept for 12 h at each temperature in order to compare their contraction percentages

      how to test heat shrinkage

  6. Nov 2021
    1. e Netherlands and analyzingtest scores on externally standardized tests, the studyreports a learning loss of 3.16 percentiles on a com-posite index of math, reading, and spelling, an effectthat varies in size by socioeconomic background andschool composition

      the Netherlands and analyzingtest scores on externally standardized tests, the studyreports a learning loss of 3.16 percentiles on a com-posite index of math, reading, and spelling, an effectthat varies in size by socioeconomic background andschool composition

    1. evernote之类的拥有自己的很强大的clipper剪藏工具,我觉得logseq作为笔记学习工具也应该有一个,在logseq的API开放后大佬们可以考虑开发一个.

      一个简单的测试

  7. Oct 2021
    1. Coronavirus Pandemic Data Explorer. (n.d.). Our World in Data. Retrieved March 3, 2021, from https://ourworldindata.org/coronavirus-data-explorer

      is:webpage lang:en COVID-19 graph case death Germany Sweden UK Afghanistan Africa Albania Algeria Andorra Angola Anguilla Antigua Barbuda Argentina Armenia Asia Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia Herzegovina Botswana Brazil Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Colombia Comoros Congo Costa Rica Cote d'ivoire Croatia Cuba Cyprus Czechia Democratic Republic of Congo Denmark Djobouti Dominica Dominician Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Eswatini Ethiopia Europe Europian Union Faeroe Islands Falkland Islands Fiji Finland France Gabon Gambia Georgia Ghana Gibraltar Greece Greenland Grenada Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kosovo Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macao Madagascar Malawi Malaysia Maldives Mali Malta Mashall Islands Mauritania Mauritius Mexico Micronesia Moldova Monaco Mongolia Montenegro Morocco Mozambique Myanmar Namibia Nepal Netherlands New Zealand Nicaragua Niger Nigeria North America North Macedonia Northern Cyprus Norway Oceania Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philipines Poland Portugal Qatar Romania Russia Rwanda Saint Helena Saint Kitts and Nevis Saint Lucia Saint Vincent Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa South America South Korea South Sudan Spain Sri Lanka Sudan Suriname Switzerland Syria Taiwan Tajikistan Tanzania Thailand Timor Togo Trinidad Tobago Tunisia Turkey Turks and Caicos Islands Uganda Ukraine United Arab Emirates USA Uruguay Uzbekistan Vanuatu Vatican Venezuela Vietnam World Yemen Zambia Zimbabwe test vaccine chart map table data case fatality rate mortality

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  8. Sep 2021
    1. Midget retinal ganglion cells (RGCs) are the most common RGC type in the primate retina. Their responses have been proposed to mediate both color and spatial vision, yet the specific links between midget RGc responses and visual perception are unclear.

      同样做标记

    1. 1840年鸦片战争以后,中国逐步成为半殖民地半封建社会,国家蒙辱、人民蒙难、文明蒙尘,中华民族遭受了前所未有的劫难。从那

      这里是可以做标记的

    1. Die Bewertung der direkten Gefährdung durch Laserstrahlung erfolgt mithilfe des Vergleichs der Exposition durch die Laserstrahlung von Auge oder Haut mit den jeweiligen Expositionsgrenzwerten, welche eine Grenze für einen Augen- oder Hautschaden darstellen.

      Was kann ich aus dieser Information lernen?

  9. Aug 2021
  10. Jul 2021
    1. Teaching Metadata IG

      "Metadata...presents educators and trainers with continually evolving pedagogical challenges."

      "...a forum for exchanging experiences and advice on the content of curricula and on classroom methodologies"

      "innovation in metadata design, implementation & best practice"

    1. If you are interested in developing an integration

      Evernote's UI/UX is top shelf; slick, elegant; but, is it extensible? Does it bring the X in XMPP?

      For example: An empty button could be added to the pop-up. A module that can be customized to inject approved widgets...such as chat/IM, or just a Home button keyed to the school's website.

      I once bought a game add-on ($2-3) that came with an extensible button by default. That was a million dollar seller, if memory serves. (See mystical cookie).

  11. Jun 2021

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    1. Christophe Fraser 💙 on Twitter: “Reading Cummings accounts of early creation of Test & Trace, a question I have is when and how it was morphed from aiming to find ~30 contacts per index case, needed to contain spread, into a service that contacts 2-4 contacts per index case, mostly within household.” / Twitter. (n.d.). Retrieved June 28, 2021, from https://twitter.com/ChristoPhraser/status/1408454903249477632

  12. May 2021
    1. Jonathan Rothberg 🦋. (2021, March 2). Testing works. I test daily. Insist on HOME testing. @michaelmina_lab @JoeBiden Research suggests B.1.526 needs to be closely watched “for its ability to evade both monoclonal antibody and, to a certain extent, the vaccine-induced antibody,” said Fauci [Tweet]. @JMRothberg. https://twitter.com/JMRothberg/status/1366755339912306688

  13. Apr 2021
  14. Mar 2021
    1. 命令总结 指令 描述 /start Just a greeting /uptime returns Lupin Uptime /ver returns Lupin running Version /help help command (WIP) /anno URL Import hypothesis annotations from URL /importFC Imports your Flashcards into Lupin /srs import alias of /importFC /srs x starts a round of SRS for x flashcards /getMM pageTitle Generates a dynamic MindMap for pageTitle /pullNow Pulls all pages from your Git for fast access /themes calls the theme changer /encryptAll Encrypts all your pages with AGE keys /decryptAll Decrypts all your pages back to clear text

      tewat

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    1. Kevin McConway. ‘Media: Worst Ever Week for Test & Trace; They Only Reached 59.9% of Identified Contacts. But the % Reached Went up This Week for Contacts Managed by Local Health Protection Teams AND for Contacts Not Managed by Them (What Used to Be Called “complex” and “Non-Complex” Cases.) How?’ Tweet. @kjm2 (blog), 5 November 2020. https://twitter.com/kjm2/status/1324417367477264386.

    1. Why separate out red tests from green tests? Because my green tests serve a fundamentally different purpose. They are there to act as a living specification, validating that the behaviors work as expected. Regardless of whether they are implemented in a unit testing framework or an acceptance testing framework, they are in essence acceptance tests because they’re based upon validating behaviors or acceptance criteria rather than implementation details.
    2. Have you ever played the game 20 questions? Most of us have played that game at one point in our lives. One person thinks of something that could be an animal, vegetable, or mineral and then they answer yes/no questions that are asked of them. The point of the game is to ask as few questions as possible in order to accurately guess what the person is thinking.  This is how I think of the unit tests that I write the specified behavior as I’m doing test-first development. I ask what are the fewest tests that I need to write in order to assert the behavior I want to create.
    3. I am a big advocate of having a complete test base and even erring on the side of caution when it comes to quality engineering and software validation but that is not what we’re talking about here. What we’re talking about here are the tests that we write when we’re doing test-first development and I’m proposing that writing those tests from the perspective of specifying the behaviors that we want to create is a highly valuable way of writing tests because it drives us to think at the right level of abstraction for creating behavioral tests and that allow us the freedom to refactor our code without breaking it.