Insurance cover in case of stay in Switzerland during the Corona pandemic as a Swiss national residing in the United Kingdom

I am a Swiss citizen living and working in London. In mid-March, I took a trip to Switzerland and decided to stay here during the Corona pandemic. Meanwhile, I will continue to work remotely for an office in London. I have a EHIC and I am insured by the NHS – my travel insurance plan that I bought only covers travel up to 2 weeks.
Do I need additional insurance or am I sufficiently covered? In addition – do I have to take out Swiss insurance at some point if I have to stay in Switzerland for several months (even if I work / live in London)? Thank you!

cancellations – Refunds in case of cancellation of the first stage of Airticket – Lufthansa premium economy

I booked a one-way Premium Economy ticket with Lufthansa on the following route for me and my daughter

March 31 – Bangalore – Frankfurt – Vancouver – Saskatoon

I had booked a return ticket with Lufthansa on the following route for my husband

March 31 – Bangalore – Frankfurt – Vancouver – Saskatoon

May 22 – Saskatoon – Calgary – Frankfurt – Bangalore

On March 18, Lufthansa canceled the first leg (Bangalore – Frankfurt) of the two trips due to the COVID 19 situation. I then went online and canceled the two tickets. I don't know why, but Lufthansa does not clearly state the ticket cancellation policy once you have purchased it. When I look at the terms of Premium Economy tickets sold for the same route in the future, they say "Cancellation – possible refund plus price difference". I really fear that Lufthansa will not refund my tickets. The call center is simply not accessible. Can someone tell me how I can know if my premium economy class tickets were refundable and what are my options if I don't hear them in 4 weeks?

wallet – Use case for multiple entries in one transaction

Is there a way to verify that a pair or more of Bitcoin addresses belong to the same wallet based on a pair of addresses used as input for a single transaction?


Assuming that all of the entries in a transaction come from the same wallet, it is often called the “ common entry ownership heuristic '', but it is possible to create transactions using entries from various portfolios, so there is no way to apply this heuristic with 100% accuracy. In many cases it can work, but in many cases it will fail.

Can I verify that the entry of the address pair is not part of a createrawtransaction or fundrawtransaction transaction, for example from a blockchain explorer?

No, the transaction data broadcast on the network is deliberately devoid of information on the software / method used to prepare the transaction. In some cases, “ fingerprints of transactions '' can be used to hypothesize about this, but then again, this is only a guess at best, false positives can also be easily created.

In which case, in addition to the creation transaction and the financing transaction, would several entries within the same transaction belong to different portfolios?

A transaction with entries from multiple portfolios is generally called a coinjoin transaction. Some examples of portfolios that implement coinjoin transactions are the Wasabi or Join Market wallet. Other ideas exist to create "payjoin" transactions, such as P2EP. Coinjoins can also be created manually using software such as Bitcoin-core.

pattern matching – DeleteCases with a case as a float?

Could the DeleteCases have matching problems when the list is floats (machine precision numbers)? For example. in this code, it may not match correctly because float == float is not a good operation:

a = RandomReal({0, 1}, 5)
DeleteCases(a, Max(a))

How would you handle these types of situations? What is the robust method?

javascript – Regex for password must contain at least eight characters, at least one number and lower and upper case letters and special characters

I would answer Peter Mortensen, but I don't have enough reputation.

Its expressions are perfect for each of the minimum requirements specified. The problem with its expressions that don't require special characters is that they don't allow special characters either, so they also impose maximum requirements, which I don't believe the OP asked. Normally, you want to allow your users to make their password as strong as they want; why restrict strong passwords?

Thus, its expression "at least eight characters, at least one letter and one number":


meets minimum requirement, but remaining characters may only be letters and numbers. To allow (but not require) special characters, you should use something like:

^(?=.*(A-Za-z))(?=.*d).{8,}$ to allow all characters


^(?=.*(A-Za-z))(?=.*d)(A-Za-zd$@$!%*#?&){8,}$ to allow specific special characters

Likewise, "at least eight characters, at least one uppercase letter, one lowercase letter and one number:"


meets this minimum requirement but only authorizes letters and numbers. Use:

^(?=.*(a-z))(?=.*(A-Z))(?=.*d).{8,}$ to allow all characters


^(?=.*(a-z))(?=.*(A-Z))(?=.*d)(A-Za-zd$@$!%*?&){8,} to allow specific special characters.

case insensitive for Google Ngram – Web Applications Stack Exchange

For simple cases, Google Ngram with case insensitivity works well

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others not

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Obviously, Google Ngram distinguishes different types, adverbs and adverbs, which is NOT what I need.

I don't care about upper or lower case, that's why I checked the "case insensitive" option.

Could someone give a clue? Thanks in advance.

Relation of UML use case diagrams – Mandatory / Optional AND independent

Use cases are not intended to have sequencing between them.

The use cases are meant to represent interactions with the system that are useful to the actors (i.e. the use cases correspond to the objectives of the actors). The CUs are by no means detailed specifications of the actions that will occur and their debt. It's just a placeholder for such specifications.

The use cases are in principle independent of each other, with the exception of include and the extend which aim to promote the reuse of common behaviors / sub-objectives / interactions.

If you want to sequence behaviors, you need to consider UML activity diagrams or BPMN diagrams.

What are the benefits of a wooden iPad case?

For years I have been an iPad user who has been using plastic cases ever since to protect my gadgets. But recently my friend bought this wooden iPad case in the store she found online. Seeing their products available, I now plan to buy one as well. Anyone here tried to use a wooden crate? Do you recommend it? TIA.

Which case is best for username? [closed]


What is the most common and the best for SEO?