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The harmonic mean $$ of two positive numbers $x_1$ and $x_2$ can be written as a weighted average $=w_1 x_1+w_2 x_2$ where the weights are $w_1=x_2/(x_1+x_2)$ and $w_2=x_1/(x_1+x_2)$. As such...
17 April 2024 2,612 11 View
Many times I read interesting papers presenting analyses and decisions on Real Cases (with data) to support the “theory” BUT NO data are provided. In such cases there is NO possibility to analyse...
12 September 2023 8,708 1 View
On Wikipedia I found about ARL: Even when a process is in control (that is, no special causes are present in the system), there is approximately a 0.27% probability of a point exceeding 3-sigma...
06 November 2022 6,777 8 View
I am looking to purchase the set of equipment related to the QKD BB84 performed in the laboratory. So, I will need a set of: - Polarization Filters - Photon Detector - Laser (one-by-one photons...
06 April 2022 5,152 0 View
Are there available datasets quantifying semantic similarity for word pairs in English? Many thanks for your help!
08 January 2022 2,095 11 View
My final goal is to propagare an RF surface wave on a purely reactive surface (Zsurf). First of all I run a mode analysis on a 2D rectangular geometry with a surface current (emw.E/Zsurf) on the...
16 November 2021 7,013 0 View
Hello everybody. We are trying to write a script to analyze current-clamp electrophysiological traces. I write asking for help because we stumbled on an issue that we couldn't really...
09 April 2020 8,958 0 View
I am culturing mESCs on 2i media. The cells are actively proliferating, but they barely attach to 0.2% gelatin- coated plates. Does anybody ever experienced similar issue and have some suggestions...
15 January 2020 5,936 6 View
Hi, I attach an underwater picture of a colony of freshwater bryozoans. I identified it as Cristatella mucedo. I took the picture in a small natural lake in Northern Italy, in the Province of...
03 December 2019 7,882 2 View
Have you collected data on the possible etiology of violence in offenders? Are there any recurrent biographical data in your sample? Let me know if you are interested in collaborating or at least...
01 August 2019 9,840 0 View
Sydney, Australia, December 9-13, 2013
06 July 2013 2,182 0 View