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Ask Health Medical

What does it mean, that an epidemic curve is truncated at the level of diagnostic efficiency?

Recently I’ve heard in one interview with a Professor of Epidemiology, that in my country the epidemic curve of COVID-19 is not flattened (contrary to popular opinion), but rather is truncated at the level of diagnostic efficiency. He argued, that this phenomenon is caused by too few tests being performed. Could you explain, why it […]

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Ask Engineering

USB switch with LED indicator

I’m new to electronics so any helpful advice or resources would be greatly appreciated. I built a USB switch to connect my keyboard to two PCs using a 4PDT switch and it works great. Now I’m trying to add LEDs to indicate which PC is connected. I added LEDs in the manner this diagram illustrates […]

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Game Creation Mastering Development

How many triangles should I expect to be able to render in a second?

Assuming that I’m doing everything right and all I’m doing when I render my scene is going through all the vertex arrays that I want to render, how many triangles should I expect to be able to render compared to the FLOPS of the GPU I am using? In my particular case, I’m trying to […]

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Database Development

How to backup a large (100gb+) microsoft sql database for occasional “offline” use?

I have a Microsoft SQL database that’s over 100gb currently in service. It’s due to be decommissioned but I want to keep the data for occasional use without paying for a Microsoft SQL licence (currently provided as part of a monthly subscription by my server provider). Unfortunately Microsoft SQL express has a size limit that […]

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Ask Games Video Games

How to make constant night on Minecraft server?

I have minecraft server on Spigot 1.15.2. I want to have always night on one of my worlds. I tried to do /gamerule doDaylightCycle false, but when someone on the server goes to bed, this don’t work and it’s create a day. I can’t find any plugin to have constant night on my server. \ […]

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Ask Games Video Games

Check if there are no zombies [duplicate]

Im creating a zombies map with individual waves of zombies. I want the next wave to start shortly once no zombies are detected (after the last zombie has been killed). The only way ive tried is to do an if else chain block via using the command /exectute if entity @e[distance=..x, type=minecraft:zombie] for the repeat […]

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User Help Web Pro

Hreflang attribute on tag

Recently I discovered that we can add hreflang to our <a> tags to inform about the language of the page which is being linked. It seems to me that it is a perfect fit for links pointing to localized version of a current page. However, the question is whether search engines actually pay attention to […]

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Ask Games RPG Games

How do attacks hit if every creature in combat is blinded? [duplicate]

I’m trying to build an encounter in which a hidden third party (not the creature the players are fighting) casts Fog Cloud to make things more difficult for the PCs. As I understand it, since both the players and the monster are affected by the blinded condition, advantage and disadvantage to hits cancel out. I […]

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Ask Games RPG Games

In what ways are high level martial characters better than a high level spellcaster with True Polymorph?

I am a DM running a high-level campaign. My group has recently leveled up to 17, and one of the casters has taken True Polymorph. They have stated their intent to turn into the most powerful kind of dragon allowed by the spell, and use it in combat. I am worried that the martial classes […]

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Ask Chemistry

Why does H+ attack alkene first in this reaction?

The reaction is: Why is the double bond attacked here even though it is in conjugation with the lone pairs of O thereby making it harder to extract. Also,don’t the 2 lone pairs on OH have more electron density than the pi bond?