00:00Australian resident Jessica Wongso has been charged with the murder of Minis Alihin.
00:08Police allege she poisoned her friend by adding cyanide to her coffee.
00:13Hello, Bali Geek Academy is here in front of you.
00:19This time we will embarrass again the quality of the toxicology laboratory.
00:27I'm sorry.
00:29It's wrong to count backwards. There is no more apologizing or anything.
00:35There is no self-retrofaction, self-introfaction.
00:40Regarding the quality, it determines the life of others.
00:45Article 340 of the Criminal Code, the threat of death or life imprisonment.
00:51But how can it be wrong?
00:54According to Sambram Subandi, this doctor, S1 Unhas, S2 Unhas, S3 IPB.
01:03A doctor.
01:05A doctor.
01:07Imagine, in toxicology, cyanide and all kinds of things.
01:12Hasn't he ever been taught to learn mathematical modeling for cyanide reduction?
01:18Admittedly, the doctor's thesis is cyanide.
01:21There is a lot of training in that profile.
01:24But why is the modeling quadratic?
01:27The parabola should be open.
01:30This is very bad.
01:33Mabis Pohri, toxicology, Mabis Pohri.
01:37He already uses Excel for office applications.
01:43The mathematical model is flat, quadratic.
01:47And if the quadratic goes down, it goes up again.
01:49Didn't he learn mathematical modeling or what?
01:53In fact, the worst and the worst of all is the countdown.
01:59From January 16th, reduced by 90 hours.
02:08Let's take a look at the problem.
02:10On January 10th, at 10.30 p.m., he conducted an experiment.
02:17It was reduced.
02:19On January 10th, 2016, from his approach, it was 90 hours, 9 minutes, 36 seconds.
02:26When he went back, when the cyanide was estimated,
02:29from January 10th, it was obtained on January 6th, 16.39.
02:34So, he made a standard deviation of 50 centimeters,
02:3816.30 to 16.45,
02:40adjusting the animation hand with a manual laser, 16.29.30.
02:47After we calculated it manually, this is what he did.
02:52From January 10th, 2016, at 10.30 p.m., it was reduced by 90 hours, 9 minutes, 36 seconds.
02:59He calculated it manually.
03:02I don't have to use the program, 16.20, 24.
03:06The result is January 6th, 2016, 16.20, 24.
03:12At that time, he was still paying in cash for the close bill.
03:17Not only that, he also used quadratic.
03:21The ball was open.
03:23As soon as it went down, it went up again.
03:26The problem is the cyanide was not reduced or decomposed.
03:31Instead, it went up.
03:33This is my experiment.
03:35This went up for 500 hours.
03:38This went up for 300 hours.
03:41He only tested up to 120 hours.
03:44The data is poor, 5 centimeters.
03:47This is for 1,000 hours.
03:49I show the deviation value every 1,000 hours.
03:52This is every 50 hours.
03:54Can you imagine?
03:56Later in the video, I will show the simulation.
04:01Can you imagine?
04:03This is fatal.
04:04In a toxicology laboratory,
04:06a doctor,
04:08Nusamran Subandi,
04:10has used a simple mathematical model for cyanide.
04:15Have you ever studied in high school or high school?
04:18Quadratic, right?
04:19The ball was open.
04:20As soon as it went down, it went up again.
04:23This is bad.
04:25Not to mention the simulation with only 5 samples.
04:28There are no validation samples.
04:32Only 5.
04:33The sample used to simulate
04:35there are no samples left.
04:37One or two samples for validation.
04:40This is a broken model.
04:42As soon as it went down, it was bad.
04:45Only manual.
04:47This is wrong.
04:48This is a doctor.
04:49A doctor from IPB.
04:53Why didn't he do a convergence test
04:56or a validation test for his next model?
04:59The important thing is that it fits the animation time.
05:03The animation time of the laser.
05:07Using Excel again.
05:09The error is too big.
05:12How many seconds is there?
05:13But he admitted it was a scientific crime investigation.
05:16It should be.
05:18This is bad.
05:21Nusamran Subandi.
05:23This is bad.
05:25A doctor.
05:26It's wrong to go back.
05:28Even though this involves human life.
05:31A criminal.
05:33From 1620 to 1639,
05:35he admitted that it was very bad.
05:38He admitted that he saw a laboratory of toxicology.
05:41It's all gone.
05:43The calculations are destroyed.
05:45Why isn't there anyone there?
05:48That laboratory.
05:50It's all gone.
05:51Why don't we laugh at Ethiopia like this?
05:54This is bad.
05:56Maybe Ethiopia or Gambia or Ghana
05:59won't be destroyed like this.
06:01A doctor of toxicology.
06:03It's wrong to go back.
06:04It's bad to determine human life.
06:06This is bad.
06:07Hopefully this will be made into a magazine.
06:09So that people will be called to court.
06:12How can he be 1639?
06:16Even though the calculation should be according to his model.
06:19It should be 1620.
06:21How can there be 19 minutes?
06:23The difference is
06:25the manual calculation.
06:27The doctor is wrong.
06:29There is no validation test.
06:32The sample should be 10.
06:34Usually 70-30%.
06:3770 for training,
06:3930 for validation.
06:41Leave the sample for validation.
06:43Like that.
06:44So, 7, 3.
06:46Or if your data is 100 samples,
06:4870, 30 for validation.
06:5070 for training or validation.
06:52That's how the mathematical model should be.
06:54Not 100% data for modeling or training.
06:59Data for validation or validation test.
07:03Whether your model is correct or not.
07:05This is a doctor.
07:07Gosh.
07:08This is how a quality doctor is now.
07:11It's bad.
07:16It's bad.
07:17Okay, viewers.
07:18Let's watch.
07:23His deception in the trial.
07:25Imagine with self-confidence.
07:27He got 139.
07:28Then, he made a standard deviation.
07:301630, 1645.
07:32The deviation is about 50 minutes.
07:36It's bad.
07:39After the test, he doesn't want to do it anymore.
07:41He's apologizing.
07:42He's stupid.
07:45He's caught.
07:46He's broken.
07:47Your father is a product of science.
07:49Your father is a product.
07:53He can't even do the math.
07:55He's a doctor.
07:57He's a doctor.
07:59Imagine.
08:00In high school, we already learned
08:04how quadratic is.
08:06There's a curve.
08:07There's a vertex.
08:11That's how quadratic is.
08:13Then, if the parabola is open,
08:16plus ax2,
08:18for example,
08:19plus positive a,
08:20ax2, plus bx, plus c.
08:22If the a is positive,
08:23what is the curve?
08:25The parabola is open.
08:26So, it forms a curve.
08:28When it goes down, it goes up again.
08:30It's so bad.
08:32In high school, he didn't pass.
08:34He was made to be used by Krishnamurti.
08:37And Tito Karnavian for his wealth.
08:40So, it's so bad.
08:42These mafias.
08:44They should be ashamed.
08:46Samrat Subandi is a doctor.
08:48He uses quadratic mathematical model.
08:53Mathematical model.
08:55The parabola is open.
08:56There's no scientist
08:59who uses quadratic.
09:02Only high school students understand that.
09:04Or high school students, maybe.
09:06Calculating manually is wrong.
09:08They don't use a program or application.
09:10Instead, they use Excel.
09:13It's so bad.
09:16It's so bad.
09:18Admit it.
09:19What's the scientific name?
09:21Just use Excel.
09:23It's for the office.
09:25It's crazy.
09:27It's so bad.
09:29I don't know what's wrong with people's computers.
09:31It's matched.
09:3316.2.
09:35It should be 16.20.
09:37Instead, it's 16.39.
09:39It's so bad.
09:42Okay, viewers.
09:44We've heard the video.
09:46Okay, see you
09:48in our next video.
09:50Okay, watch the video
09:52of this doctor.
09:55Okay, bye.
09:57See you in our next video.
10:20120 days is...
10:22120 hours.
10:24120 hours.
10:26It's seen.
10:28Then it's formed in a curve.
10:32This curve.
10:34Descending curve.
10:36It's not a linear curve.
10:38In language.
10:40It's not linear.
10:42It's a bit parabolic.
10:44So,
10:46then we form
10:48what is it?
10:50We find the regression
10:52through
10:54mathematical calculation.
10:56Now, it's the easiest.
10:58We use Excel.
11:00We can use Excel.
11:02Then from here,
11:04we can calculate
11:06at what point,
11:08how many hours
11:10was used to release
11:12that much.
11:14Release that much cyanide.
11:16How long was it?
11:18So, it's at the back.
11:20We find it.
11:22Yes.
11:24We find the time.
11:26From there,
11:28we get
11:3030 hours,
11:329 minutes,
11:3436 seconds.
11:4090 hours.
11:4290 hours,
11:449 minutes,
11:4636 seconds.
11:48We repeat that.
11:50Then, we plot
11:52from the starting point, we measure
11:54this material in the laboratory.
11:56When we measure this material
11:58in the laboratory,
12:00the data is still there.
12:02Then,
12:04we measure the data.
12:06We calculate from there to the back.
12:10Reduce that much hours.
12:12Then, we reach
12:14from the measurement
12:16at
12:18around 10 o'clock.
12:20What time was it?
12:22What time?
12:2610.30 p.m.
12:28Calculate it back
12:30by
12:32reducing
12:3490 hours,
12:369 minutes, 36 seconds
12:38to the point
12:42at
12:4416.30 p.m.
12:48past
12:5039.
12:5236 seconds.
12:56This is the point
12:58we get from there.
13:00So, it's a simulation
13:02to produce that.
13:04Simulation to produce that time.
13:06Simulation to produce that time.
13:08But,
13:10there is a calculation.
13:12There is a calculation called
13:14Standard Deficit.
13:16So, to prevent that
13:18from coming out,
13:20we make a
13:22calculation.
13:24The calculation
13:26falls to
13:2816.30 p.m. to 16.45 p.m.
13:30That's the time.
13:32That's the time.
13:34That's the time.
13:36That's the time.
13:38Not the time
13:40we calculate
13:42from the time we measure it
13:44until the end.
13:4616.30 p.m. to 16.45 p.m.
13:48So, to sum up,
13:52to prevent that
13:54from coming out,
13:56we make a calculation
13:5816.30 p.m. to 16.45 p.m.
14:00The point we get
14:02from the simulation calculation is
14:04how many?
14:0616.00 p.m.
14:08past
14:1039 minutes
14:12and 36 seconds.
14:14That's what I can explain.
14:16What day is that?
14:18This is because we calculate it backwards.
14:20It's
14:226th January.
14:266th January,
14:282016.
14:30Wednesday.
14:32Wednesday.
14:34So, the time delay
14:36I read it,
14:38the time delay of NRCN
14:40in the cup of coffee
14:42is between 16.30 p.m.
14:44to 16.45 p.m.
14:46That's the conclusion
14:48of the simulation
14:50on Wednesday,
14:526th January, 2016.
14:58Next,
15:00are there any
15:02experiments
15:04that were
15:06done
15:08in the
15:10report?
15:12They were done in the report.
15:14By the toxicology team.
15:16By the toxicology team.
15:18By the toxicology team.
15:26Let's continue, sir.
15:28This is a general question.
15:30What is your dissertation about?
15:32My dissertation is about
15:34what I just said.
15:36So, the title of my dissertation
15:38in my doctorate is
15:40Development of
15:42Scientific Investigation
15:44to Prove
15:46Blast and Signet Fishing Cases.
16:00Development of
16:02Scientific Investigation
16:04to Prove
16:06Blast and Signet Fishing Cases.
16:30Development of
16:32Scientific Investigation
16:34to Prove
16:36Blast and Signet Fishing Cases.
17:00Development of
17:02Scientific Investigation
17:04to Prove
17:06Blast and Signet Fishing Cases.
17:08Development of
17:10Scientific Investigation
17:12to Prove
17:14Blast and Signet Fishing Cases.
Comments