Fossil Fuels | Environmental Center | University of Colorado Boulder Fossil fuels are energy resources like coal, oil, and natural gas that were formed after dead plants and animals were buried and exposed to extreme pressure and temperature millions of years ago. Above image provided courtesy of the U.S. Energy Information Administration Oil Oil is the energy source of our time. However, the environment is paying a serious price for our unbridled consumption of fossil fuels and our climate is warming at a rate that may cause irreversible consequences. Dependence on oil as an energy source is a real danger to our national security, our environment and our economy. If you want to learn more about oil and how it's used and make, take a look at the US Energy Energy Information Administration. Coal Of all the coal used in the United States, 92% is burned to generate electricity. So, what's the big deal? Natural Gas A quarter of the U.S. energy consumption comes from natural gas, a mixture of mostly methane and a smaller amount of other hydrocarbons.
Bivariate Sampling Statistics This site is a part of the JavaScript E-labs learning objects for decision making. Other JavaScript in this series are categorized under different areas of applications in the MENU section on this page. Enter (by replacing) your up-to-42 two samples paired-data sets where measurements are made jointly on two random variables (X, Y) per subject, and then click the Calculate button. Blank boxes are not included in the calculations but zeros are. In entering your data to move from cell to cell in the data-matrix use the Tab key not arrow or enter keys. Risk Assessment Process: Clearly, different subjective probability models are plausible they can give quite different answers. Cov(X, Y) / Var (X) is called the beta of the random variable X with respect to Y. Given you wish to invest $12,000 over one period (with the same length of time), how do you invest for the optimal strategy? Using the JavaScript we obtain: Beta (Currencies) = -0.4578313, and Beta (Gold) = -1.9
Crypto Canon - Andreessen Horowitz Here’s a list — building on and including Chris’ last roundup — of crypto readings and resources. It’s organized from building blocks and basics; foundations (& history); and key concepts — followed by specific topics such as governance; privacy and security; scaling; consensus; cryptoeconomics and investing; fundraising and token distribution; decentralized exchanges; stablecoins; and cryptoeconomic primitives (crytocollectibles, curation markets, games). We also included a section with developer tutorials, practical guides, and maker stories — as well as other resources, such as newsletters and courses, at the end. We’ll soon be updating this regularly at crypto.a16z.com, for now we’ll keep it updated here. You can also find most of a16z’s writings, posts, and videos on the topic at a16z.com/crypto. Building Blocks and Basics WTF is the blockchain? Ever wonder how bitcoin (and other cryptocurrencies) actually work? Ethereum in 25 minutesby Vitalik Bu
Fossil Fuel Energy | Oil | Natural Gas | Petroleum | Coal Electricity Fossil fuels are non-renewable energy sources that formed more than 300 million years ago during the Carboniferous Period - long before dinosaurs roamed the Earth. Fossil fuels are made up of plant and animal matter. When plants and animals died, their bodies decomposed and were buried under layers of earth. Fossil Fuel Energy - Oil Oil is a thick, black, gooey liquid also called petroleum. Industrial oil pump jack pumping crude oil for fossil fuel energy with drilling rig in oil fieldCourtesy of Flystock Fossil Fuel Energy - Natural Gas Natural gas is lighter than air. After the stinky chemical is added, the natural gas is sent through underground pipes which go to your home so you can cook food and heat your house. Fossil Fuel Energy - Coal Coal comes in several different forms from hard black rocks (that's the kind you get in your stocking at Christmas) to soft brown dirt. Courtesy of Peabody Energy, Inc. Have Your Say Do you know how your home is heated? Related Stories:
Matter of Stats You are wealthy Estimating Option-Implied Probability Distributions for Asset Pricing After interpolation in (K, σ)-space, we obtain enough data points to estimate the implied strike price density functions at each expiry time. To do this we use a computational finance principle developed by Breeden and Litzenberger [4], which states that the probability density function f(K) of the value of an asset at time T is proportional to the second partial derivative of the asset call price C = C(K). We first transform the data to the original domain ((K, C)-space) for each expiry time using the blsprice function: T0 = unique(D.T); S = D.S(1); rf = D.rf(1); for k = 1:numel(T0) newC(:, k) = blsprice(S, fineK, rf, T0(k), sigmaCallSABR(:, k)); end Here, fineK is a vector defining the range of strike prices used for the interpolation and sigmaCallSABR is the matrix created using SABR interpolation in which the columns contain the interpolated volatility smiles for each expiry time We then compute the numerical partial derivatives with respect to the strike price.
Les Bullshit jobs sont -ils vraiment utiles ? — Article initialement publié le 6 septembre 2013 Dans un essai publié dans le magazine britannique de gauche radicale Strike!, David Graeber, anthropologue et figure de proue du mouvement Occupy Wall Street s’en prend à ce qu’il appelle les « bullshit jobs » — comprendre : les « jobs à la con ». Paru le 17 août dernier, le pamphlet de l’anthropologue américain n’a pas tardé à être commenté à tout va. Serions-nous entrés dans une ère de bureaucratisation extrême de l’économie, à l’origine d’une effarante multiplication d’emplois inutiles ? Selon David Graeber, une vaste majorité de travailleurs de bureau sont, à notre époque, aliénés en étant soumis à des tâches « inutiles et vides de sens » tandis qu’ils ont pleinement conscience de ne produire qu’un apport « superficiel pour la société ». Alors que la robotisation du travail a effectivement eu lieu dans de nombreux secteurs, « la technologie a été manipulée pour trouver des moyens de nous faire travailler plus ».
OCC: The Options Clearing Corporation Prosumerismo, digital divide e McDonaldizzazione sui siti web | CompassUnibo Blog L’obiettivo dell’articolo è quello di dimostrare il forte legame fra la visibilità ottenibile sulle varie piattaforme web, social e il denaro. Come piattaforma di hosting di siti web ho scelto WordPress.com perché ho con essa un’esperienza diretta, ma lo stesso discorso vale per le altre. Partiamo proprio dalla mia esperienza. Dal 12 settembre 2018 sono iscritto alla piattaforma di WordPress, che consente di dare vita al proprio blog. Prima di spiegare il perché di questa affermazione, intendo specificare che il ruolo di blogger appartiene a una delle tante forme di prosumerismo che compongono la società odierna. In generale, si può affermare che il prosumer è piacevolmente sfruttato, è contento di ciò dal momento in cui le forme di sfruttamento non sono evidenti e crede di ottenere dei vantaggi dalla sua attività. Questa situazione conduce in un contesto di pericolo e opportunità. Quando dico per sempre, intendo esattamente il significato di questa parola. Federico Aviano Bibliografia:
CBOE | Chicago Board Options Exchange