True or false?: USA built on back of AFRO American slaves so the whole world must be preserved on the back of Western European Mass Produced Slaves.

Minister Alexander Ohnemus @Minister-Alexander-Ohnemus

01 January 1970 0 2K Report

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Why are reaction forces so high when I add vibration to cutting model?

Hi I am trying to model a cutting problem with a blade and comparing the results with and without ultrasonic vibration. From experimental results in our group, the use of ultrasound can...

13 June 2024 7,461 4 View

Best Tools for Wrist PPG Signal Analysis: Your Recommendations?

I'm conducting research on photoplethysmography (PPG) signals obtained from smartwatches worn on the wrist. The main goal is to analyze the PPG waveform and extract key fiducial points and...

13 June 2024 3,286 0 View

Why diagonal terms in Abaqus stiffness matrix are infinite?

I am running some simulations in Abaqus to extract the stiffness matrix of a FE model with geometric nonlinearity. I want to provide to Abaqus a set of nodal displacements (all the dofs in the...

28 May 2024 4,797 2 View

Is it possible to combine a time-series of tree-ring widths and and a time-series of diameter at breast height measurements into one TS?

Hello together! I have some time-series for tree-rings from dating from 1850-2016 and diameter at breast height (DBH) from 1996-2022 for the same plot, however the sampled trees for tree-rings...

16 May 2024 5,295 2 View

Is priori knowledge only instincts? Why?

I think so because The Random Slate Theorem

03 May 2024 3,082 7 View

How to fix driver conflicts of an ancient Skyscan 1072 micro CT with DT3157 video grabber ?

I am currently trying to get a Skyscan 1072 micro CT to work again. After the mainboard on the original PC died, we tried to set the machine up on a new computer. We managed to control the source,...

28 April 2024 381 0 View

Statistics: Is it worth using a t-test on pre and post survey data with 12 or less responses?

Is it worth using a paired t-test on pre and post survey data with 12 or less responses? Or should one rely more on the mean and standard deviation of the two data sets to evaluate the survey...

27 April 2024 8,703 8 View

What about religion, God, multi verse, etc.?

1)Religion(or at least spirituality) calms my mind, particularly, the built in belief of only one reality. God created the only reality. The afterlife is another dimension. We have free will but,...

25 April 2024 10,055 0 View

Handling BrainVision matlab files with ECG data in EEGLAB?

I have 217 preprocessed BrainVision matlab files (.mat) with ECG data in them. I've been having trouble creating a study for these. I know BioSig works for ECG data, but it doesn't seem to work...

21 April 2024 1,028 2 View

EEGLAB - how to import multiple .mat files from different folders all at once?

I have 25 folders for 25 participants, all with .mat files inside that are preprocessed. Most of them have the same amount of .mat files - a couple participants didn't finish the study, so they...

17 April 2024 1,897 3 View

Do you make articles from the Journal of Hypertension available (not the American Journal of Hypertension)?

I haven't seen one in a while so I wondered if that journal prohibits that form of redistriibution.

04 August 2024 5,137 3 View

How are lift and elevator used in American English diachronically?

A diachronic study

21 July 2024 989 1 View

How effective has the United Nations been in addressing the conflict and its consequences?

After World War, we have seen the formation of the United Nations. The sovereign body for peacekeeping but with regards to the Russia-Ukraine war it is visible that the UN seems to be ineffective...

18 July 2024 4,674 4 View

How to change my english accent?

I would like to change my English accent from Indian to American. How do I change it when I am already too old?

27 June 2024 3,462 3 View

Why is my thin film PDMS TFM device warping only when with cells?

I've been fabricating traction force microscopy devices in glass bottom dishes, using a method that first spins a 100 micron PDMS layer, then a ~1 micron PDMS + fluorescent beads mixture layer....

09 June 2024 652 2 View

Sentaurus TCAD, what should I do about running stuck in sdevice?

While running sdevice mode in sentaurus TCAD, the status doesn't change from running, so I checked the out file and it seems to change from line 18000 to line1000 and doesn't go back after that....

29 May 2024 5,620 0 View

Can we trust the credibility of the American Journal of Biomedical Science & Research?

The American Journal of Biomedical Science & Research has extended an invitation for collaboration. However, it's important noting that the publisher of this journal, Biomed Grid LLC, is...

15 May 2024 1,976 1 View

Are the licensing rounds that China recently obtained from Iraq considered a victory for the Chinese pole over the American pole?

14 May 2024 3,151 2 View

What organism is responsible for recycling nitrogen back into the environment & organism is responsible for recycling nitrogen back into environment?

What organism is responsible for recycling nitrogen back into the environment and organism is responsible for recycling nitrogen back into the environment?

13 May 2024 2,646 3 View

Why now can't ResearchGate send my published article ("too big") to people requesting it?

https://www.researchgate.net/profile/Peter-Messer-2/research My article entitled "A Review of Nearctic Selenophorus ..." now can't be sent to people requesting via ResearchGate. Error message:...

10 May 2024 8,402 15 View