Sci-hub stopped updating a few years ago due to an ongoing lawsuit in India: https://academia.stackexchange.com/questions/205911/why-did-...
422 karma · joined February 16, 2016
After the install, Chrome will disable the extension on the next restart but it can be re-enabled .. for now.
Connecting grids could significantly increase the fragility of the system resulting in higher risk of large-scale power outages. Some of you might have experienced the 2003 blackout in northeast North American (https://en.wikipedia.org/wiki/Northeast_blackout_of_2003), which luckily happened in the summer. Tail risks should not be swept under the rug.
Even a single widespread event could completely wipe out the benefit gained from connecting grids.
I have forgotten why I originally wanted to update but I have had no issues with the updated system.
The reason is that the government wants its tax money. Since the cash flow is coming from the renter they are also responsible for it. There is a similar situation with employers who are responsible for remitting tax withholding even though it is the employee who owes the income tax.
The renter in this case was responsible even though he claimed he did not know his landlord was a non-resident since she left Canada during the time that he rented. The Canada Revenue Agency disputed that claim since "[the landlord's] phone number on the lease was an Italian phone number; she had used an Italian e-mail address to correspond with [the renter]." The landlord had also asked the renter to start paying her sister who was still in Canada before she left for Italy.
I am curious about what would happen if the renter could genuinely establish that he did not know their landlord was a non-resident. Based on the defense lawyer's claim that "Whether the CRA could have collected the rent in some other way does not impact his liability under the law. The CRA and the Tax Court have to apply the law as it is written." [Note there is a mistake in this quote the CRA (Canada Revenue Agency) collects taxes not rent].
YC has been reticent to fund solo founders since its inception.
From the paper: "Accordingly, the public intellectual arena has witnessed active debates, such as the one between Steven Pinker on one side, and John Gray on the other concerning the hypothesis that the long peace was a statistically established phenomenon or a mere statistical sampling error that is characteristic of heavy-tailed processes, 16] and [27]–the latter of which is corroborated by this paper."
The BBC article from 2021 linked above even says "The law is seen as a test case for similar regulation around the world."
Everything I wrote is 100% correct and in fact incontrovertible. Whether there is a little or a lot of differential capacitance does not change the fact that the differential portion of the capacitance has a 2X effect on the differential signal (as opposed to the common-mode signal, which it has no effect on). This is supported by basic math.
If capacitance is to ground then it is not differential capacitance so it is not relevant to this discussion. It may be true that differential capacitance is not a significant contributor to the impedance of PCB differential traces but that does not change the fundamental result (similarly, the principle of photovoltaic conversion still holds true in the dark even though there is little light to convert). And PCB traces are not the only kinds of differential pairs. Diff pairs exist inside the integrated circuits that drive the PCBs where they operate less like transmission lines and more like lumped capacitances due to the frequencies of interest compared to the dimensions of the conductors. In these circuit and conductor structures, differential capacitance can be significant and this is what OP was talking about since he was talking about the legs of the driver (transistors). OP was just wrong about the differential capacitance being good for speed. It's bad for speed.
The article is correct. This comment is wrong.
> Differential signals, at a physical layer level, are faster than single ended IO. It’s because you have double the current drive/sinking capability with two drivers.
The load is also double in a diff pair compared to a single wire, so the net effect is a wash compared to a single wire.
> You’re also getting capacitive coupling between each leg of the pair working in your favor, which keeps your edge transition nice and fast.
The opposite is true. Differential capacitance effectively appears 2X higher than the nominal capacitance to differential signals, making it a drawback of differential signaling rather than a benefit.
This is organizational problem that should be solved so that meetings are avoided as much as possible. The main way I have seen this solved is by engineering teams having clear APIs between. I use the term API loosely. This may be a software API between software teams but it may be a document, hardware interface or other sort of interface.
Without this sort of structure, communication requirements grow quadratically with each additional person, i.e., n*(n-1)/2 where n is the # of people.
> If one reads the original paper, one only finds a description of this attack as a thought experiment, leading one to conclude that any claim of a real-world attack by Thompson was an urban myth due to exaggeration.
This is true although Thompson gives some tantalizing hints in the paper.
In the introduction, he writes " I would like to present to you the cutest program I ever wrote." So he definitely wrote it and at least played around with it.
Later on in the "Moral" section, he writes "The moral is obvious. You can't trust code that you did not totally create yourself. (Especially code from companies that employ people like me.)"
This appears to be an admission but not quite strong or direct enough to validate he implemented and used the Trojan horse so it is great to read this post.
[1] https://csrc.nist.gov/csrc/media/publications/conference-pap...
I am curious if any art-inclined people on HN can comment on how close they believe the results to be to the original.
I think you've hit the nail on the head. The articles "sins" don't matter because experts skip over these parts. And this is the reason they are not a focus of the authors.
I still think the article points out things that can be improved but the benefit is taking a good paper and making it more palatable to people who are not experts or on-the-way to being experts, thus expanding the population of people who might cite the paper.
I found what I think is a more original post related to the list: https://ihsmarkit.com/research-analysis/new-global-container...
Inferring from the description in the link, it seems like the overall ranking is based on a combined metric. They do mention "minutes per container move" as a key metric ranging from Yokohama's 1.1 minutes to Africa's average 3.6 minutes.
From a high-level perspective, and in analogy with computer systems, it makes sense that time efficiency is the most critical metric.
Gate leakage is the phenomenon of quantum tunneling through the gate dielectric barrier and started appearing as gate dielectrics became thinner and thinner. Gate leakage was mitigated by moving to higher k dielectrics (from silicon dioxide, SiO2, to more exotic materials that include other elements such as Hafnium).
Higher k dielectrics allow for the same capacitance per unit area and channel control with a thicker physical gate compared to plain SiO2, reducing gate leakage. This technology change came along with metal gates (which used to be polysilicon) and were a combined advance that Intel incorporated a few years before before TSMC, IIRC circa 2008.
This is a circuit designer's perspective. Someone who actually understands device physics and material properties can chime in to correct me.
Not to downplay the achievement of the article or the innovation in fusion physics and engineering in general, just a bit of context for the timescales.
This depends on your definition of "mostly disappear". If you mean, ignoring, soundstage, imaging, distortion, and other parameters that affect sound, then yes, but even a non-audiophile could easily discern the difference between an open-back vs. a closed-back headphone with identical magnitude response (by your definition, the differences between these two headphones should have mostly disappeared).
From linear signal analysis, magnitude adjustments do not provide enough degrees of freedom (and thus are not sufficient) to transform any response into another response. And this is true for practical sound signals not just theoretical concoctions.
Take a look at any headphone review at rtings.com where they try to capture other parameters in addition to magnitude response. They test for phase response (related to imaging), PRTF (pinna-related transfer function --- related to soundstage), and harmonic distortion. These would not automatically match between headphones that were modified by gain adjustments to have identical magnitude response.
I don't know why it is ignored, but Vietnam (population 90M) is a large country with many land borders, including a border with China, and it has done spectacularly well containing the coronavirus.
Not to take anything away from the island countries but having no land borders makes limiting the influx of Covid much simpler.
I don't know much about Vietnam's borders and how much crossing there was in pre-Covid times but perhaps it should be the Covid success model that all non-island nations emulate.
Parroting NN Taleb: absence of evidence is not evidence of absence. Haven't we learned from coronavirus that we need to use the precautionary principle in the face of new information that is not fully understood. I don't know where you are from, but I locally heard a string of "there is no evidence of" starting in about January of 2019. There was no evidence that the virus would leave China (it did). No evidence that shutting down travel from infected areas would help (see Vietnam). No evidence of community transmission (it has happened in most of the globe). No evidence that masks help prevent transmission (appears to reduce transmission rates).
I am starting to think as soon as someone asserts "there is no evidence" for something related to the coronavirus, it is a foregone conclusion.
In any case, nobody can assert with absolute certainty that the coronavirus cannot mutate into a more severe or more transmissible virus, especially in the face of a the long human history of being (literally) plagued by mutating viruses.
A critical mutation is a possibility and we should be extremely cautious and vigilant against it. Even if we erroneously overreact 10 times to false mutations, the 11th time might be the one the matters. And the cost of those 11 overreactions will be much less than the cost of letting it go wild.
The https site returns 404 but the http site has the content. This breaks Firefox's preferences for https, as I keep get redirected from the http to the https site since the https site responds (albeit with a 404).