103 Matching Annotations
  1. Aug 2022
    1. Kustin, T., Harel, N., Finkel, U., Perchik, S., Harari, S., Tahor, M., Caspi, I., Levy, R., Leschinsky, M., Dror, S. K., Bergerzon, G., Gadban, H., Gadban, F., Eliassian, E., Shimron, O., Saleh, L., Ben-Zvi, H., Amichay, D., Ben-Dor, A., … Stern, A. (2021). Evidence for increased breakthrough rates of SARS-CoV-2 variants of concern in BNT162b2 mRNA vaccinated individuals. MedRxiv, 2021.04.06.21254882. https://doi.org/10.1101/2021.04.06.21254882

  2. Jul 2022
    1. Findings indicate a continual decline in the size of game hunted by humans as their main food source -- from giant elephants 1-1.5 million years ago down to gazelles 10,000 years ago. According to the researchers, these findings paint an illuminating picture of the interaction between humans and the animals around them over the last 1.5 million years.

      1.5 million years trend of fauna of decreasing body mass in the Southern Levant - from giant elephants to gazelles.

    1. Chapter 5: Demand, services and social aspects of mitigation

      Public Annotation of IPCC Report AR6 Climate Change 2022 Mitigation of Climate Change WGIII Chapter 5: Demand, Services and Social Aspects of Mitigation

      NOTE: Permission given by one of the lead authors, Felix Creutzig to annotate with caveat that there may be minor changes in the final version.

      This annotation explores the potential of mass mobilization of citizens and the commons to effect dramatic demand side reductions. It leverages the potential agency of the public to play a critical role in rapid decarbonization.

  3. Jun 2022
    1. gun rights advocates often push to arm more people, citing prominent examples where a “good guy with a gun” stopped a “bad guy.”

      A "good guy with a gun" stopped a "bad guy" on average less than 3% of the time in active shooter situations in 433 events through 2021.

    2. “It’s direct, indisputable, empirical evidence that this kind of common claim that ‘the only thing that stops a bad guy with the gun is a good guy with the gun’ is wrong,” said Adam Lankford, a professor at the University of Alabama, who has studied mass shootings for more than a decade. “It’s demonstrably false, because often they are stopping themselves.”
    1. War assault weapons have no place except with military?

      It's strange how the same people who imagine a disarmed populace as a good thing are playing catch-up to arm Ukranian civilians against a military. I've lost count of the children massacred by militaries that are the only groups of people magically trustworthy enough to be armed apparently.

      If you left a murderer alone with a room full of kids and a knife for 77 minutes, you'd have the same result - and if you're a student of recent history, you'd know that's exactly the kind of attack that has happened time and again in gun-free victim zones around the world.

      To address this issue properly, citizens must understand the #JustPowers Clause of The Declaration of Independence, the foundation that the US Constitution is laid upon; and a universal document that recognizes the rights of ALL humans.

      Put simply, it states that neither you, nor I, nor anyone else may justly grant powers to others that we do not have.

      If you or I stole our neighbors' firearms, even if we claimed it was for "safety" or "the common good", we'd face criminal charges. We all know this, and the evidence is in our conduct.

      Instead, why not focus just powers such has holding adults responsible for the safety of others accountable for negligence?

  4. Apr 2022
  5. Mar 2022
    1. Melvin Vopson has proposed an experiment involving particle annihilation that could prove that information has mass, and by Einstein's mass-energy equivalence, information is also energy. If true, the experiment would also show that information is one of the states of matter.

      The experiment doesn't need a particle accelerator, but instead uses slow positrons at thermal velocities.

      Melvin Vopson is an information theory researcher at the University of Portsmouth in the United Kingdom.

      A proof that information has mass (or is energy) may explain the idea of dark matter. Vopson's rough calculations indicate that 10^93 bits of information would explain all of the “missing” dark matter.

      Vopson's 2022 AIP Advances paper would indicate that the smallest theoretical size of digital bits, presuming they are stable and exist on their own would become the smallest known building blocks of matter.

      The width of digital bits today is between ten and 30 nanometers. Smaller physical bits could mean more densely packed storage devices.

      Vopson proposes that a positron-electron annihilation should produce energy equivalent to the masses of the two particles. It should also produce an extra dash of energy: two infrared, low-energy photons of a specific wavelength (predicted to be about 50 microns), as a direct result of erasing the information content of the particles.

      The mass-energy-information equivalence principle Vopson proposed in his 2019 AIP Advances paper assumes that a digital information bit is not just physical, but has a “finite and quantifiable mass while it stores information.” This very small mass is 3.19 × 1038 kilograms at room temperature.

      For example, if you erase one terabyte of data from a storage device, it would decrease in mass by 2.5 × 1025 kilograms, a mass so small that it can only be compared to the mass of a proton, which is about 1.67 × 1027 kilograms.

      In 1961, Rolf Landauer first proposed the idea that a bit is physical and has a well-defined energy. When one bit of information is erased, the bit dissipates a measurable amount of energy.

  6. Jan 2022
  7. Dec 2021
    1. So we are headed for a post agricultural world we're changing the climate of the past 10,000 years into a completely different climate which is not an agricultural climate. And when you say a post agricultural world. 00:24:21 What we're saying again, to be blunt, is not enough food to feed people. That's right. And billions and billions of people starving to death. That's right. We're looking at billions of people not able to survive because of starvation, water deprivation. And then, of course, you pile on the diseases for many, many, many years. The Infectious Disease experts. 00:24:50 We just had an experience of it with covid-19, have warned us that actually all of the infectious and communicable diseases are going to be increased by putting up the global temperature. And lots of floods. It's a recipe. It's a suicidal recipe. And the only plans we have are plans for Global suicide.

      Is there any research on global heating resilient agriculture? Camilo Mora has done some research on this.

  8. Nov 2021
    1. Dr Nisreen Alwan 🌻. (2021, October 30). Mass infection of kids with a virus less than 2 years old is not ethical, not moral, not scientifically evidenced, not socially just & medically risky. There’s no good argument for this. And no, boosting population immunity to protect the adults is not a valid argument. #Childism [Tweet]. @Dr2NisreenAlwan. https://twitter.com/Dr2NisreenAlwan/status/1454498829403922440

  9. Oct 2021
  10. Sep 2021
  11. Jul 2021
  12. Jun 2021
  13. May 2021
    1. Today, as we head into the Anthropocene, we are in the dying days of an era of ice that has lasted for 3m years, as we transition into an era of fire, a Pyrocene that may persist for tens of thousands of years
    1. iDie Wassermasse reicht aus, um England jährlich 2m tief unter Wasser zu setzen. Das sind 47% mehr als die Wassermenge, die in Grönland abschmilzt und mehr als das Doppelte der Menge, die in der Antarktis frei wird. Innerhalb von 20 Jahren hat sich der Diclenverluss von durchschnittlich einem Drittel eines Meters auf zwei Drittel verdoppelt. Der Verlust in den Alpen ist doppelt so hoch wie im globalen Durcschnitt.

      Setzen sie die Verluste fort, werden 80-90% der alpinen Gletscher 2050 geschmozen sein. Möglicherweise wird es dann z.B. in der Schweiz kein frisches Gras mehr geben. Die schlimmsten Konsequenzen hat das Abschmelzen der Gletscher für die kontinuierliche Versorgung der großen Fluß-Systeme in Asien (Yangtze, Mekong, Salwenn und Brahmaputra). Von ihnen ist ca. eine Milliarde Menschen abhängig. 200 Millionen leben in Küstenregionen, die vom Anstieg des Meeresspiegels bedroht sind.

      Speed at which world’s glaciers are melting has doubled in 20 years | Glaciers | The Guardian

    1. Der Guardian beginnt eine neue Studie zum Gletscher-Verlust. Die Gletscher (ohne die auf Grönland und in der Antarktis) tragen zirka 20% zum globalen Anstieg des Meeresspiegels bei, das sind zur Zeit etwa 0,74 mm im Jahr. Die Rate, mit der sie dünner werden, hat sich in 20 Jahren verdoppelt. Besonders hoch sind die Verluste in den Alpen. Im Durchschnitt haben sie im Jahr 267 Gigatonnen verloren.

      'We Need to Act Now': Glaciers Melting at Unprecedented Pace, Study Reveals - EcoWatch

    1. Einer im Fachmagazin »Nature« veröffentlichten internationalen Studie zufolge verloren die Gletscher zwischen 2000 und 2019 im Durchschnitt 267 Milliarden Tonnen (Gigatonnen) Eis pro Jahr, am meisten aber in den vergangenen fünf Jahren. Inzwischen trägt das schmelzende Eis demnach zu mehr als 20 Prozent zum Anstieg des Meeresspiegels bei.
  14. Mar 2021
  15. Feb 2021
  16. Oct 2020
    1. Many individuals are sentenced without any due process of the law. 

      reasons why the mass incarceration is a thing and why many people are incarcerated in the us alone.

    1. We have to recognize that prior to Web 2.0 and social media, “the media” often connoted “mass media,” broadcast from the few to the many.

      One of the issues we're seeing is that mass media still exists within platforms like Facebook and Google, the problem is that the "gatekeepers" now have vastly different structure and motivation. The ostensible gatekeeper now is an algorithm that puts all it' emphasis on velocity, stickiness, shareability, and the power of anger (which pushes clicks, likes, and shares). Thus the edge content is distributed far and wide rather than the "richest" and most valuable content that a democracy relies on for survival. Mass media is still with us, we've just lost the value of the helmsperson controlling the direction of the rudder.

  17. Aug 2020
  18. Jun 2020
    1. What happens to matter when it undergoes chemical changes? The Law of conservation of mass says that "Atoms are neither created, nor distroyed, during any chemical reaction." Thus, the same collection of atoms is present after a reaction as before the reaction. The changes that occur during a reaction just involve the rearrangement of atoms.
    1. Altay, S., de Araujo, E., & Mercier, H. (2020, June 4). “If this account is true, it is most enormously wonderful”: Interestingness-if-true and the sharing of true and false news.

  19. May 2020
  20. Apr 2020
    1. Edward Snowden disclosed in 2013 that the US government's Upstream program was collecting data people reading Wikipedia articles. This revelation had significant impact the self-censorship of the readers, as shown by the fact that there were substantially fewer views for articles related to terrorism and security.[12] The court case Wikimedia Foundation v. NSA has since followed.
    1. Google's move to release location data highlights concerns around privacy. According to Mark Skilton, director of the Artificial Intelligence Innovation Network at Warwick Business School in the UK, Google's decision to use public data "raises a key conflict between the need for mass surveillance to effectively combat the spread of coronavirus and the issues of confidentiality, privacy, and consent concerning any data obtained."
  21. Oct 2019
    1. Liberal and Conservative Representations of the Good Society: A (Social) Structural Topic Modeling Approach

      I chose this article, because it is timely, relevant, easy-to-follow (because it is intuitive), and innovative (using data sources, Twitter, and an innovative method, textual analysis). I hope you enjoy the reading. Please follow my annotations (comments + questions) and respond to the questions I pose. Try to answer them in your own words.

  22. Sep 2019
  23. Jun 2018
    1. Thus mass collaboration is more refined and complex in its process and production on the level of collective engagement.
  24. May 2018
  25. arxiv.org arxiv.org
    1. forα= 1, . . . , n, letY(α)be the Euclidean conformalKilling vector field(|x|2δαi−2xαxi)∂∂xi,define(1.7)cαI(r) =12(n−1)(n−2)ωn−1m∫Sr(Ric−12Rgg)(Y(α), νg)dσgandcI(r) = (c1I(r), . . . , cnI(r)).
    1. quasi-local mass quantity is defined in [16] for fill-ins (Ω,g)∈ ̊F(Σ,γ)as follows:m(Ω,g) := Λ(Σ,γ)−18π∫ΣHgdσ.(1.7)HereHgis the mean curvature of the boundary Σ with respect to theunit outward norma
  26. Apr 2018
    1. the scalar curvatureRofds2is given byR= (1−u−2)Rρ+u−2n−1∑i,jR0ijij+ 2n−1∑i=1Rnini= (1−u−2)Rρ+u−2R0−2u−1∆ρu+ 2u−3∂u∂ρH0whereR0is the scalar curvature ofNwith respect tods20andRρis the scalar curvatureof Σρwith the induced metric.
  27. Nov 2017
    1. One possibility is the American preoccupation with fame. Studies have found that Americans are more interested in fame than people of other nationalities are. A 2007 Pew Research survey of 18- to 25-year-olds found that about half said that getting famous was a top priority for their peers. Television shows increasingly promote fame as a value, research has found, and pop lyrics are becoming more narcissistic. A 2010 review of research studies found that modern college students display less empathy than students of the late 1970s. These studies fit a general pattern of research showing that narcissism is on the rise. Simultaneously, Lankford said, the line between being famous and infamous is blurring. Scientists looked at the covers of People magazine issues dating from 1974 to 1998, and found that cover stars were increasingly featured for bad behavior — cheating, arrests, crime — rather than good acts (though there was a slight shift toward positivity after the Sept. 11 terrorist attacks), according to their 2005 report.
  28. Sep 2017
    1. Let Σ0be a compact strictly convex hypersurface inRn,Xbe the position vector ofa point on Σ0, and letNbe the unit outward normal of Σ0atX. Let Σrbe the convexhypersurface described byY=X+rN, withr≥0. The Euclidean space outside Σ0canbe represented by(Σ0×(0,∞),dr2+gr)wheregris the induced metric on Σr. Consider the following initial value problem(2.1)2H0∂u∂r= 2u2∆ru+ (u−u3)Rron Σ0×[0,∞)u(x,0) =u0(x)whereu0(x)>0 is a smooth function on Σ0,H0andRrare the mean curvature and scalarcurvature of Σrrespectively, and ∆ris the Laplacian operator on Σr.

      Note que de agora em diante o autor se detém a estudar esse caso particular, onde estão inteiramente determinadas as geometrias intrínseca e extrínseca das folhas do semi cilindro, obtido folheando-se pelas paralelas o exterior da hipersuperfície estritamente convexa dada a priori.

    2. Given a functionRonN, we want to find the equation forusuch that(1.2)ds2=u2dρ2+gρhas scalar curvatureR.

      O papel da aplicação \( u: N \longrightarrow \mathbb{R} \) é distorcer as fibras do semi cilindro \( N \), por dilatações e torções, deixando a geometria intrínseca das folhas invariante, de tal forma que o resultado seja um semi cilindro com a curvatura escalar prescrita \( \mathcal{R} \).

    3. Let Σ be a smooth compact manifold without boundary with dimensionn−1 and letN= [a,∞)×Σ equipped with a Riemannian metric of the form(1.1)ds20=dρ2+gρfor a point (ρ,x)∈N. Heregρis the induced metric on Σρwhich is the level surfaceρ=constant

      Isso significa que a construção a seguir é feita a partir de um semi cilindro em que a geometria das folhas é dada a priori.

      Esse artigo não trata da construção desse semi cilindro inicial.

  29. Jul 2017
  30. Mar 2017
  31. oup.silverchair-cdn.com oup.silverchair-cdn.com
    1. Robinson,P. (1994).TheTranscriptionof Primary TextualSourcesusing SGMI.Oxford: Office forHumanitiesCommunication

      Gray lit.

  32. oup.silverchair-cdn.com oup.silverchair-cdn.com
    1. Duggan, H. N. (1994). Creating an electronic archive of Piers Plowman.http://j efferson.village.virginia.edu/piers/report94.html

      ONly gray literature

  33. Apr 2016
    1. massmediarefers to those means of transmission

      When I ask students to post on Youth Voices, I'm asking them to participate in mass media. It's a big jump for some who do very little by friend-to-friend communication.

  34. Feb 2016
    1. Patrick Ball—a data scientist and the director of research at the Human Rights Data Analysis Group—who has previously given expert testimony before war crimes tribunals, described the NSA's methods as "ridiculously optimistic" and "completely bullshit." A flaw in how the NSA trains SKYNET's machine learning algorithm to analyse cellular metadata, Ball told Ars, makes the results scientifically unsound.
  35. Dec 2015
    1. Lemma 2.3.(2.1) has a unique solutionufor allrwhich satisfies the estimates in Lemma2.2.
    2. Let Σ0be a smooth compact strictly convex hypersurface inRn. Letrbe the distance function from Σ0. Then the metric on the exteriorNof Σ0is given bydr2+gr, wheregris the induced metric on Σr, which is the hypersurface with distancerfrom Σ0. The functionuwith prescribed scalar curvatureR= 0 is given by2H0∂u∂r= 2u2∆ru+ (u−u3)RrwhereH0is the mean curvature of Σr,Rris the scalar curvature of ΣrandR0is the scalarcurvature of Σrwith the induced metric fromRnand ∆ris the Laplacian on Σr.
    1. There are approximately 300M guns (including roughly 6 million AR-15 style rifles) in the possession of 120M gun owners in the US. Yet the gun murder rate has declined from 7.3/100k in the 70's to roughly 3/100k in 2014.

      Interesting conversation about gun ownership and gun violence around this reply to the slightly hysterical post, "I'm afraid of Americans"