From January 2015, she started to practice leetcode questions; she trains herself to stay focus, develops "muscle" memory when she practices those questions one by one.
2015年初, Julia开始参与做Leetcode, 开通自己第一个博客. 刷Leet code的题目, 她看了很多的代码, 每个人那学一点, 也开通Github, 发表自己的代码, 尝试写自己的一些体会.
She learns from her favorite sports – tennis, 10,000 serves practice builds up good memory for a great serve. Just keep going.
Hard work beats talent when talent fails to work hard.
The optimal LDL cholesterol level for intermediate and high risk individuals is <= 2.00 mmol/L. If triglycerides are => 1.50 mmol/L, consider monitoring of alternate lipid targets non HDL-cholest- erol or apoB. For low risk individuals with LDL cholesterol => 5.00 mmol/L, target reduction of LDL cholesterol => 50 percent. See Can J Cardiol 2013 vol 29 pgs 151 to 167.
HDL Cholesterol
1.50
>1.19
mmol/L
Chol/HDL (Risk Ratio)
3.81
<4.4
Non HDL Cholesterol
4.22
mmol/L
Non HDL-cholesterol is calculated from total cholesterol and HDL-C and is not affected by the fasting status of the patient. The optimal non HDL-cholesterol level for intermediate and high risk individuals is <= 2.60 mmol/L. See Can J Cardiol 2013 vol 29 pgs 151 to 167.
Triglycerides
0.95
<2.21
mmol/L
Google results:
The results of a fasting test with respect to glucose levels in the body are as follows: Normal: 3.9 to 5.4 mmols/l (70 to 99 mg/dl) Prediabetes or Impaired Glucose Tolerance: 5.5 to 6.9 mmol/l (100 to 125 mg/dl) Diagnosis of diabetes: 7.0 mmol/l (126 mg/dl) or above.
Having a previous hemoglobin A1c test result equal to or greater than 5.7%, impaired glucose tolerance (glucose tolerance test result 140 to 199 mg/dL (7.8 to 11.1 mmol/L)), or impaired fasting glucose (fasting glucose level 100 to 125 mg/dL (5.6 to 6.9 mmol/L))
Having other conditions associated with insulin resistance, such as severe obesity and acanthosis nigracans
Elasticsearch is an open-source search engine built on top of Apache Lucene™, a full text search-engine library. Lucene is arguably the most advanced, high-performance, and fully featured search engine library in existence today—both open source and proprietary.
But Lucene is just a library. To leverage its power, you need to work in Java and to integrate Lucene directly with your application. Worse, you will likely require a degree in information retrieval to understand how it works. Lucene is very complex.
Elasticsearch is also written in Java and uses Lucene internally for all of its indexing and searching, but it aims to make full-text search easy by hiding the complexities of Lucene behind a simple, coherent, RESTful API.
However, Elasticsearch is much more than just Lucene and much more than “just” full-text search. It can also be described as follows:
A distributed real-time document store where every field is indexed and searchable
A distributed search engine with real-time analytics
Capable of scaling to hundreds of servers and petabytes of structured and unstructured data
And it packages up all this functionality into a standalone server that your application can talk to via a simple RESTful API, using a web client from your favorite programming language, or even from the command line.
Demonstrate how Apache Beam and Cloud Dataflow work together to fulfill your organization’s data processing needs
Write pipelines and advanced components such as utility functions, schemas, and watermarks.
Perform monitoring, troubleshooting, testing and CI/CD on Dataflow pipelines.
Deploy Dataflow pipelines with reliability in mind to maximize stability for your data processing platform
It is becoming harder and harder to maintain a technology stack that can keep up with the growing demands of a data-driven business. Every Big Data practitioner is familiar with the three V’s of Big Data: volume, velocity, and variety. What if there was a scale-proof technology that was designed to meet these demands?
Enter Google Cloud Dataflow. Google Cloud Dataflow simplifies data processing by unifying batch & stream processing and providing a serverless experience that allows users to focus on analytics, not infrastructure. This specialization is intended for customers & partners that are looking to further their understanding of Dataflow to advance their data processing applications.
This specialization contains three courses:
Foundations, which explains how Apache Beam and Dataflow work together to meet your data processing needs without the risk of vendor lock-in
Develop Pipelines, which covers how you convert our business logic into data processing applications that can run on Dataflow
Operations, which reviews the most important lessons for operating a data application on Dataflow, including monitoring, troubleshooting, testing, and reliability.
In this second installment of the Dataflow course series, we are going to be diving deeper on developing pipelines using the Beam SDK. We start with a review of Apache Beam concepts. Next, we discuss processing streaming data using windows, watermarks and triggers. We then cover options for sources and sinks in your pipelines, schemas to express your structured data, and how to do stateful transformations using State and Timer APIs. We move onto reviewing best practices that help maximize your pipeline performance. Towards the end of the course, we introduce SQL and Dataframes to represent your business logic in Beam and how to iteratively develop pipelines using Beam notebooks.
This course is part 1 of a 3-course series on Serverless Data Processing with Dataflow. In this first course, we start with a refresher of what Apache Beam is and its relationship with Dataflow. Next, we talk about the Apache Beam vision and the benefits of the Beam Portability framework. The Beam Portability framework achieves the vision that a developer can use their favorite programming language with their preferred execution backend. We then show you how Dataflow allows you to separate compute and storage while saving money, and how identity, access, and management tools interact with your Dataflow pipelines. Lastly, we look at how to implement the right security model for your use case on Dataflow.
Prerequisites:
The Serverless Data Processing with Dataflow course series builds on the concepts covered in the Data Engineering specialization. We recommend the following prerequisite courses:
(i)Building batch data pipelines on Google Cloud : covers core Dataflow principles
(ii)Building Resilient Streaming Analytics Systems on Google Cloud : covers streaming basics concepts like windowing, triggers, and watermarks
How to be a good stock investor as a value investor and long term investor? I spent first hour in the morning to watch RIG go up 5% and then down 0% since treasury yields. I also learned my own behavior to sell over $30,000 US dollar oil stock on Sept. 27, 2021, and then I missed today gains on RIG and GTE stocks in those early hours.
More reading | Yields | Highlights to review later
Stock market news live updates: Stocks drop, Nasdaq sinks as Treasury yields climb
Stocks sank Tuesday, with technology stocks leading the way lower as investors nervously eyed a swift rise in U.S. Treasury yields.
The Nasdaq, a proxy for technology and growth stocks, underperformed against the other two major stock indexes, dropping more than 1% just after market open. Both the S&P 500 and Dow also dipped.
The rapid rotation away from growth and technology stocks came as Treasury yields added to recent gains. The yield on the benchmark 10-year note (^TNX) jumped more than 5 basis points to top 1.54%, reaching its highest level since June.
Yields, which move inversely to prices, have held at low levels throughout the pandemic, and rising yields are seen in large part as a bet on a strengthening economic environment. However, the rapid rise in borrowing costs also serves as a headwind to "long-duration" growth stocks, which are valued heavily on future earnings.
Oil prices also added to gains, and positive economic data including a much stronger-than-expected durable goods report out Monday helped underpin the move. West Texas intermediate crude oil futures (CL=F) were on track to climb for a sixth consecutive session and broke above $76 a barrel, or the commodity's highest price since July. And Brent crude oil, the international standard, touched $80 per-barrel level to reach its highest since October 2018.
"Really what you're seeing is, across asset classes, the market [is adopting] a pro-cyclical view, which means better growth in the future, higher inflation, higher bond yields," Tom Essaye, The Sevens Report Research Founder, told Yahoo Finance Live. "You're seeing that from commodities through to equities."
Investors also continued to watch developments out of Washington, with lawmakers facing a deadline this week to fund the government by Thursday night to avert a government shutdown.
The effort to pass a new government budget has been swept into ongoing debates around whether or not to raise the federal debt ceiling and pass an expansive $3.5 trillion reconciliation package, which would advance a number of initiatives central to President Joe Biden's economic agenda. In a move widely expected, Senate Republicans on Monday evening blocked a bill that would have funded the government through Dec. 3 and also raised the debt ceiling through the end of 2022. While Democratic lawmakers have called for raising the debt limit to be a bipartisan move, Republicans have argued Democrats, as majority members of both chambers of Congress, should increase it without their support.
Federal Reserve Chair Jerome Powell and Treasury Secretary Janet Yellen are also set to testify before the Senate Banking Committee on Tuesday about the Fed and Treasury's responses to the pandemic. In prepared remarks, Yellen addressed the ongoing debt ceiling debate, reiterating her concern over the negative implications to the U.S. economy, should lawmakers fail to take action.
"It is imperative that Congress swiftly addresses the debt limit. If it does not, America would default for the first time in history," Yellen said in the remarks. "The full faith and credit of the United States would be impaired, and our country would likely face a financial crisis and economic recession."
For investors, the plethora of overlapping debates in Washington could be a near-term source of more market choppiness.
"I think there's the opportunity for volatility to pick up a little bit," Eric Freedman, U.S. Bank Wealth Management chief investment officer, told Yahoo Finance Live on Monday.
"Not only do you have concerns about the debt ceiling and what legislation may come out, but you also have concerns about when the Federal Reserve may step in, and you also have earnings come up," he added. "So we're in that shoulder period for the next couple of days when the only announcements coming from companies tend to be negative ones. We've had some of those over the past week, particularly focusing on cost pressures."
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9:40 a.m. ET: U.S. goods trade deficit increased more than expected in August
The advance U.S. merchandise trade deficit reached $87.6 billion in August, yawning from the $86.82 billion posted in July, according to Commerce Department data on Tuesday. The increase came as imports rose 0.8%, outweighing a 0.7% increase in goods exports.
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9:30 a.m. ET: Stocks open lower as Treasury yields climb
Here's where stocks were trading shortly after the opening bell Tuesday morning:
9:01 a.m. ET: Home prices reach record high for fourth straight month in July: Case-Shiller
U.S. home prices increased further in July, setting a new all-time high for a fourth consecutive month as elevated demand and materials shortages pushed up housing prices further.
The S&P CoreLogic Case-Shiller national home price index rose at a 19.70% rate in July over last year, accelerating from June's 18.73% monthly increase. The 20-City Composite Index, which tracks home price changes in 20 major metropolitan areas across the country, rose 19.95%, accelerating from June's 19.14% increase but coming in a hair below the 20.00% rise expected, according to Bloomberg data.
Over last month, however, the 20-City Composite Index decelerated slightly. The index rose 1.55% in July compared to June, after rising at a 1.79% monthly pace during the prior month. Consensus economists were looking for a 1.70% monthly increase in July.
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7:38 a.m. ET Tuesday: Stock futures drop, Nasdaq underperforms
Here's where markets were trading head of the opening bell:
S&P 500 futures (ES=F): -40.75 points (-0.93%), to 4,392.25
Dow futures (YM=F): -164 points (-0.47%), to 34,579.00
Nasdaq futures (NQ=F): -255.25 points (-1.68%) to 14,939.50
The government said it hopes to never have to use the digital proof of vaccination for such a reason and is instead relying, quite desperately, on the population to get their two doses of the vaccine by Aug. 31.
Recently, a team of cybersecurity experts got together to test the security and safety of the QR codes sent to hundreds of thousands of Quebecers so far.
The so-called “ethical hackers” were able to crack the codes using a fairly rudimentary program that decodes the visual symbols.
Those involved in the hack are asking why the government did not opt for a more robust security method involving encryption, which is far more difficult to crack.
“There are a lot of people that say, in social media, we’re already giving that (kind of personal) information. The thing is we’re giving this information voluntarily to a private company,” said Patrick Mathieu, co-founder of Hackfest, billed as the largest hacking event in Canada.
“(But) now it’s the government forcing us to access a public space or private event. Facebook doesn’t require you to give your information when you want to go to a cinema, but the government might ask you to do so.”
Even if the QR codes are never needed to be used within the province, they can be shown abroad when travelling to countries, such as those in Europe, that require proof of vaccination for entry.
In a statement, the ministry of health said the QR code is “completely secure and the government would “never put Quebecers’ data at risk.”
“The Ministry of Health is studying and following international standards in this major operation. And for double authentication, the QR code will have to be accompanied by a proof of identity on site. The QR code is designed to be read and is unencrypted, in accordance with the international standard determined by the WHO, a position supported by the VCI (Vaccination Credential Initiative) for Smart Health Card (a group of public and private organizations),” the statement read.
“The QR code is not forgeable. It contains an encrypted signature from the Quebec government. It does not constitute proof of identity. Therefore, to avoid fraud or identity theft, the QR code must be combined with proof of identity.”
The ministry added that there are still several weeks of testing left to iron out technical details of the QR code program.
Mathieu said the current codes were relatively easy to create and that encrypted codes would require more elaborate set-ups, but would require more people and more money to develop.