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President Joe Biden sternly outlined a broad plan Thursday to boost Covid vaccination rates in the U. The nation is reporting an average of , new cases per day, according to data compiled by Johns Hopkins University, hovering around levels seen in late January. An average of 1, people are dying from Covid every day in the U. While vaccination rates have picked up speed in recent weeks as the delta variant spurred a surge in cases, they remain a fraction of what they were in the early months of the vaccine rollout.
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Content:
- Conserving Supply of Personal Protective Equipment—A Call for Ideas
- An Introduction to Ethereum and Smart Contracts: a Programmable Blockchain
- Bitcoin, Blockchain and Cryptocurrency: Everything You Need to Know
- How Much Would it Cost to 51% Attack Bitcoin?
- Demystifying Cryptocurrencies, Blockchain, and ICOs
- Biden outlines plan to mandate Covid vaccines for millions: 'Our patience is wearing thin'
- Bitcoin Definition
- Stiglitz Against Austerity: For the Consolidation of Europe
Conserving Supply of Personal Protective Equipment—A Call for Ideas
Ethereum is a public, open-source software platform built to support smart contract functionality. The network uses Ether ETH as its currency to process transactions and provide computational power to developers. The network also allows developers to build decentralised smart contract applications on top of it. For example, both Tether and Augur run on the Ethereum network.
In simple terms, a smart contract is an agreement between two parties written in code. It sets out conditions that have to be met by each party for the contract to be executed. Once conditions are met, the contract is processed by the blockchain and executed without a need for third-party verification. Coupled with the immutability of the blockchain and its open-source design, smart contracts present an opportunity for many businesses.
In fact, in , Forbes identified more than large American companies actively exploring blockchain technology, with many of them using the Ethereum network. Because of that, the initial design and functionality of these two networks were essentially the same. The hard fork in split the blockchain into Ethereum Classic and Ethereum, dividing the community at the time.
Most developers chose to upgrade to the new Ethereum protocol, limiting the size of the ETC community and its ability to improve the network. Ethereum was first described by Vitalik Buterin in late He argued that Bitcoin BTC needed a different programming language to automate the execution of tasks, to allow developers to build applications on top of its blockchain.
The idea did not get enough support in the Bitcoin community, leading to the creation of Ethereum in Initial development efforts were funded through a crowdsale in July It raised more than 25, BTC making it the largest ever crypto raising at the time. The DAO was meant to be a decentralised, community-based funding platform.
The community would fund the development of blockchain applications and receive a share of the profits if an app was successful. It was built on the Ethereum blockchain and operated based on a set of smart contracts. Imagine a venture capital firm where the investment capital was crowdsourced and there was no management to decide which projects get funded.
The DAO allowed token holders to make investment decisions, distributing funds to projects that received more than 20 per cent of community support. At its peak, the DAO attracted 14 per cent of all the Ether in circulation. There were several security flaws with the DAO code which were repeatedly pointed out in May and June of Project backers had to buy DAO tokens with Ether.
Once the splitting function was initiated, the holder would receive their Ether back and the network would update the public ledger.
The holder would then have to hold Ether for 28 days without being able to use it. The splitting function, in combination with other vulnerabilities, was exploited on June 17, The hacker or hackers stole The network continued to refund Ether for the same DAO tokens without registering the transaction on the public ledger. However, the stolen Ether was still subject to the day holding period. Because the Ether was technically recoverable, the Ethereum community could either create a fork to reverse the illegitimate transactions or do nothing.
This debate split the community along ideological lines. The main argument for doing nothing was that the blockchain was meant to be immutable and free from manipulation by any individual or a group. This was the key aspect of decentralised applications. Forking the blockchain to reverse the hack would create a moral hazard, potentially leading to future hard forks based on unknown motivations.
A vote was triggered on July 15, , where 87 per cent of the community voted for the hard fork. However, out of more than 82 million Ether tokens in existence, only 5.
The new blockchain, Ethereum Classic, altered the history of the original blockchain to reverse the DAO hack. The first Ethereum Classic block was mined on July 20, , preserving the unaltered record. Because this was done through a hard fork, not a soft fork, any future updates to the Ethereum blockchain would not be compatible with Ethereum Classic.
Initially, a choice between Ethereum vs Ethereum Classic was largely an ideological debate. On a functional level, the two projects are very similar. Both provide computational software to support smart contracts and buildout of decentralised applications on the network. However, there are several differences between Ethereum and Ethereum Classic that emerged after the hard fork:.
The Ethereum network enjoys strong business support through the Enterprise Ethereum Alliance. Vitalik Buterin and Vlad Zamfir continue to be heavily involved in the project. The upcoming transition to PoS should improve the scalability of the network and make it more cost-efficient. There are other potential avenues to scaling the network, like sharding and zero-knowledge proofs that are being explored.
Unfortunately, there appears to be limited room for Ethereum Classic in the cryptocurrency universe. Other smart contract projects are also ahead of ETC. The Ethereum network has seen substantial growth of decentralised applications built on it. Most recent data by dapp. Ethereum also dominates the daily transaction volume. At the same time, dapp.
Performance metrics, for example total transactions and hash rates, also point to better prospects for Ethereum. Over the last two years, the Ethereum network has processed between , and one million transactions per day, averaging around , Over the same period, the average number of daily transactions on the Ethereum Classic network has been around 40, The hash rate of the Ethereum network, or its computational power, is also roughly 20 times higher.
Overall, Ethereum is a stronger project. Transition to PoS consensus is critical for wider adoption and, if executed successfully, should allow the network to significantly scale transactions. Ethereum Classic, on the other hand, has limited appeal and few differentiating features. Our Global Offices.
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An Introduction to Ethereum and Smart Contracts: a Programmable Blockchain
By Andrew Bullock For Mailonline. Amanda Holden can't feel her face, after undergoing wisdom teeth removal four years ago. The NHS list pain and mild bruising that can last for up to 2 weeks as side-effects, and complications such as dry sockets, nerve injury, infection, swelling and bleeding. But Amanda appears to be in the one in patients that are left with permanent after-effects.
Bitcoin, Blockchain and Cryptocurrency: Everything You Need to Know
Bitcoin took the world by surprise in the year and popularized the idea of decentralized secure monetary transactions. The concepts behind it, however, can be extended to much more than just digital currencies. Ethereum attempts to do that, marrying the power of decentralized transactions with a Turing-complete contract system. In this post we will take a closer look at how Ethereum works and what makes it different from Bitcoin and other blockchains. Read on! This is post 2 from a three-post series about Ethereum. Read post 1 if you haven't done so.
How Much Would it Cost to 51% Attack Bitcoin?
Steve Inskeep. Russia reinforces its military presence along the border with Ukraine. Stocks are in the midst of a wild ride as the U. Burkino Faso's president has been ousted in a coup.
Demystifying Cryptocurrencies, Blockchain, and ICOs
Center for American Progress. Read the summary. In , 42 percent of U. They have become an essential part of American lives and livelihoods. Simultaneously, the growth of online services has created new inequalities, acute consumer protection issues, and troubling concentrations of power. Online service companies have produced substantial wealth, but these gains have failed to reach the American workforce more broadly.
Biden outlines plan to mandate Covid vaccines for millions: 'Our patience is wearing thin'
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Bitcoin Definition
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Stiglitz Against Austerity: For the Consolidation of Europe
RELATED VIDEO: Why Blockchain Matters More Than You Think!She was the first to recognise that the machine had applications beyond pure calculation, and to have published the first algorithm intended to be carried out by such a machine. As a result, she is often regarded as the first computer programmer. Four months later, he commemorated the parting in a poem that begins, "Is thy face like thy mother's my fair child! Her mother remained bitter and promoted Ada's interest in mathematics and logic in an effort to prevent her from developing her father's perceived insanity. Despite this, Ada remained interested in him, naming her two sons Byron and Gordon. Upon her death, she was buried next to him at her request.
Welcome back to This Week in Apps, the weekly TechCrunch series that recaps the latest in mobile OS news, mobile applications and the overall app economy. The app industry continues to grow, with a record number of downloads and consumer spending across both the iOS and Google Play stores combined in , according to the latest year-end reports. In addition, consumers are spending more time in apps than ever before — even topping the time they spend watching TV, in some cases. The average American watches 3. In markets like Brazil, Indonesia and South Korea, users surpassed five hours per day in mobile apps in They can grow to become huge businesses.
Today, Junior Achievement celebrates the 75 million women in the workforce by shining a light on 3 women from various industries who have reached and accomplished business success. She has flown multiple aircraft, including the T Tweet, T Talon, A Warthog, MQ-1 Predator and MQ-9 Reaper, accumulating more than 3, total flying hours and over 1, hours of combat support time assisting and protecting troops on the ground in both Iraq and Afghanistan. Yeva is the Co-Founder and CEO of SoloLearn, a global community of mobile code learners participating in the most engaging way to learn and interact with fellow coders around the world. She started off implementing World Bank and USG programs in business and education, then sales, developer ecosystem development, and strategic partnerships as a general manager at Microsoft.
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