barbegal

31 ms·

301.
by barbegal 6y ago
This is just a joke paper, there is no statistical analysis in it and the key findings are: some scientists the author knows have more followers than others.
302.
by barbegal 6y ago
> 4 articles were prospectively tweeted per day by a designated TSSMN (Thoracic Surgery Social Media Network) delegate and retweeted by all other TSSMN delegates (n=11) with a combined followership of 52,893 individuals and @TSSMN for 14
303.
by barbegal 6y ago
The statistical analysis in this paper is really poor. Without the raw data I would say it is impossible to tell anything from this study. > change in citations at 1 year (Tweeted +3.1±2.4 vs. Non-Tweeted +0.7±1.3, p<0.001) I don&#x27
304.
by barbegal 6y ago
If you want to lose weight you need to change the energy balance. Less energy in and more out. For most people it is difficult to meaningfully affect energy out. Unless you go from being really sedentary to running for an hour a day (~500 k
305.
by barbegal 6y ago
No it's just a term used in that area of study such that researchers have consistent terminology. The three common configurations are "sevens", "primes" and "turned" where the opposite sides are 1-3 2-4 5-
306.
by barbegal 6y ago
As long as the frequency is between 1 and 10kHZ then well fitting earplugs should reduce the pressure level by 20 to 30dB. If you combine with earmuffs or noise cancelling headphones then that could approach 40dB [1]. Indeed the manufacture
307.
by barbegal 6y ago
> The new American spacecraft are more than double the weight of a Soyuz while offering only one additional seat. Is this true? The launch mass of a Soyuz capsule is about 7000kg and the SpaceX Crew Dragon Demo-1 launch mass was about 12
308.
by barbegal 6y ago
Towards the end of that first video https://www.youtube.com/watch?v=M91AYp3_x5k&feature=youtu.be... he definitely gets struck by the arc, which makes me question what the point of the metal suit is. Is it just for show,
309.
by barbegal 6y ago
> 2. I wish server CPUs would support h264/vp8/vp9 hardware encoding and decoding on the CPUs Why is this? What advantages are there to doing it on a CPU rather than in a GPU?
310.
by barbegal 6y ago
What does this mean in practise? I think this comes from the days of single core machines where going to multiple threads can't improve performance. But even on a single core device, threading is routinely used because a single state m
311.
by barbegal 6y ago
> There is one good argument in its favor [closing tickets that are too old]: the software continuously changes and hence old issues may be invalid. In order to put them into a sprint, they need to be checked—in some cases, that’s actual
312.
by barbegal 6y ago
There are other options for using the sun's energy. We can grow trees to burn, we can optimise windows and window coverings to use solar energy to heat and cool buildings, we can put solar panels in the dessert, or in the ocean, or abo
313.
by barbegal 6y ago
I have yet to read an article or paper which has convinced me that energy generating fusion is possible at low costs and with materials that we currently know of. I don't see why anyone (including governments) should invest in these ty
314.
by barbegal 6y ago
You are correct a standard Gaussian Blur can be reversed except along the edges where data is effectively lost outside the blurred rectangle. In this case the radius of the blur is large enough that a lot of data will be lost. Combined with
315.
by barbegal 6y ago
Where does the CDC define pepper balls as "tear gas"? It defines them as "riot control agents" in this document https://emergency.cdc.gov/agent/riotcontrol/factsheet.asp saying that these are &
316.
by barbegal 6y ago
I agree, have you ever seen a cleaning company use a Dyson vacuum cleaner? If they were the best and most reliable then they would all be using them.
317.
by barbegal 6y ago
It seems they really got out of their depth with this project. There are a lot of photos and videos of aesthetic things that (arguably) Dyson is good at such as the steering wheel user interface, the shaping of the wheel rims and the colour
318.
by barbegal 6y ago
I really question whether these apps will be effective. The limitation section https://github.com/corona-warn-app/cwa-documentation/blob/ma... of their architecture document shows that people in close proximi
319.
by barbegal 6y ago
I'm just slightly surprised that the study wasn't made randomized. I can't see any ethical reason why that couldn't have been done but maybe there were logistical reasons. Larger randomized trials are in progress [1][2]
320.
by barbegal 6y ago
The methodology mentions nothing about randomization so its unclear if there was any selection bias here. If you look a table 2, the control group was on average 6 years older and had more co-morbidities. This suggests that there was some s
321.
by barbegal 6y ago
If you want to get a better feel for this NASA has made a great visualization tool https://vesl.jpl.nasa.gov/sea-level/slr-gfm/
322.
by barbegal 6y ago
It seems it is not just Cisco, some printers are vulnerable too. I don't know why you would ever need IP in IP on a printer
323.
by barbegal 6y ago
Is this really a vulnerability? This is just expected behavior of IP-in-IP. I don't know of any devices that have IP-in-IP enabled by default because you need to be careful setting it up to work correctly. Edit: Now I see that some dev
324.
by barbegal 6y ago
> Controlling the motor is a real-time digital control system task, and it needs to be executed at exact time intervals This is correct but also the accelerometer data needs to be sampled at the same interval. For this reason, running th
325.
by barbegal 6y ago
This seems to boil down to: > If you can, just get a Ph.D. at a place with a good crypto group (remember that Ph.D.'s in computer science are effectively free) Which I'm not sure is great advice except for someone who wants a f
326.
by barbegal 6y ago
> Big interrupt handlers require more system-wide knowledge to verify I think the point I'm trying to make is that sometimes following the rule of "make your ISR small" actually makes this worse because your bigger high pr
327.
by barbegal 6y ago
> As soon as you have long running (long is a relative thing) it is extremely difficult to guarantee any behavior of the system. I understand your sentiment but simply pushing the work into a task doesn't make guaranteeing the behav
328.
by barbegal 6y ago
>Keep ISRs small I disagree. If you have interrupt priorities then you can treat your interrupt service routines as the highest priority tasks. As an example lets imagine a drone controller which has two functions it needs to perform in
329.
by barbegal 6y ago
Yes this is possible before JPEG compression, because convolution removes fairly little information but once you compress using JPEG you remove the frequency components that make it reversible.
330.
by barbegal 6y ago
> The landing algorithm for the first stage uses convex optimization algorithms based on interior point methods, which were not available in the 1960s. Is this level of optimisation really needed? I thought most of the landing was having

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