More Physics for my fellow leakers. Standby power.

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Worried Guy
Veteran Member


Date Joined Jul 2009
Total Posts : 3739
   Posted 1/6/2010 4:19 PM (GMT -6)   
Guys,

Granted, I'm a mental case. I agree with you. But I just can't help myself. (Remember back in August I was the nut case who calculated the heat capacity of a full pee pad.)

I was just working on a project calculating the current and power of a certain type of RFID tag and the answer came out to 5 uW. 5 microwatts. When I got up from the chair to stretch, I immediately peed in my pad, as usual, but this time a light bulb went off, and a physics problem flew into my head:
At my leak rate of 450 ml per day how much potential energy am I throwing away in pee pads. If I attached a generator to my ankle and ran a hose from my nozzle, assuming 50% efficiency, can I power the RFID tag by incontinence alone?

I'll save you the trouble of figuring it out. While I am standing, if a generator and capacitor are attached to my ankle, my steady drip will generate 20.92 uW continuously. That is enough to power 4 of the ID tags! Talk about Standby power!
I can't wait to tell the DOD about this. Maybe I can get a research grant.

Bonus points for anyone who calculates how far above my ankle Willy is.

Finally, I found something positive about incontinence. If only I could find something to do with ED.
Jeff
DX Age 56. First routine PSA test on April 8th: 17.8. Start 2 weeks of Cipro to rule out protatitis.
May PSA: 22.6, 3 weeks later: PSA: 23.2.
Biopsy 6/10/09: 7/12 scores positive, Gleason 6=3+3. Bone scan and C/T scan negative.
RP DaVinci -7/21/2009 @ Univ of Roch Medical Center
Left nerve gone, right partial spared.
Catheter removed - 7/31/2009 Pathology report received:
Gleason 3+4=7, Tumor size: 2.5 x 1.8 cm, location: both lobes and apex.
Extraprostatic extension present; Perineural invasion: present, extensive.
No Malignancy in Seminal Vesicle, vasa deferentia, lymph nodes 0/13
Prostate mass 56 grams. Pathologic Stage: pT3aN0MX
Post Surgery Status:
Potency - 12/11 5 months, Still no activity, zip. Using pump daily since 11/11. No effect with 20 mg of Cialis or 100 mg of Viagra. Shots next?
Incontinence - 8/20 4 full pads per day
.. 9/7 3-4 full pads per day (I'm going to try cutting down on fluids. Bad idea. I know.)
. 9/27 2 months: Still 3 pads per day.
11/14 4 months: Still 3 pads per day. 420ml/day, 91 um leak.
12/11 5 months: Still 3 pads per day. 400-450ml/day Experimenting with Nyquil for 10 days: Can sleep through the night but withdrawal is bad. Stopped 12/20.
Post Surgery PSA - 9/3 6 weeks - 0.05; 10/13 3 months - 0.04 undetectable.


tatt2man
Veteran Member


Date Joined Jan 2010
Total Posts : 2845
   Posted 1/6/2010 4:24 PM (GMT -6)   
LOL - thank you for the laugh - I needed that
:)
hugs
BRONSON
............
Age: 54 - openly gay - with common-law spouse of 13 years, Steve - 59
.................
PSA: 04/2007- 1.68 - 08/2009 - 3.46 - 10/2009 - 3.86
Biospies: October 8, 2009 - 12 specimens taken rectally
Confirmation of Prostate Cancer: October 16, 2009 - 6 of 12 cancerous, Gleason 7 (4+3)
Doctor: Dr. Mohamed Elharram -Urologist / Surgeon - Peterborough Regional Health Centre
Radical Prostatectomy Operation: November 18, 2009 , home - November 21, 2009
Catheter: in November 18 - out December 8, 2009
Incontinence: Life brand - Male Guards - extra absorbant - one for day - one for night - leaking on standing, quick movement, walking up stairs -
Incontinence Exercises: standing Kegel excercises - pelvic thrust (ala Rocky Horror Show Time Warp Dance) 20 reps x 5 times daily
Post Surgery Biopsy: - n/a - get results January 7, 2010 -
Post Surgery PSA: - n/a
ED:- some difficulty before surgery - after surgery - loss of length - 1-2" - some arousal 4 weeks after surgery - girth increase but not length
ED Therapy: use of water-based Bathmate pump - increase in girth and a little in length -
ED Prescription: n/a
...........
location: Peteborough, Ontario, Canada
............


Purgatory
Elite Member


Date Joined Oct 2008
Total Posts : 25393
   Posted 1/6/2010 4:26 PM (GMT -6)   
For the bonus points, Jeff, can you least tell how tall you are?
Age: 57, 56 dx, PSA: 7/07 5.8, 7/08 12.3, 9/08 14.5, 10/08 16.3
3rd Biopsy: 9/08 - 7/7 Positive, 40-90% Cancer, Gleason 4+3
Open RP: 11/08, Rht nerves saved, 4 days in hospt, on catheters for 63 days, 5th one out 1/09
Path Rpt: Gleason 3+4, pT2c, 42g, 20% cancer, 1 pos margin
Incontinence:  1 Month     ED:  Non issue at any point post surgery
Post Surgery  PSA: 2/09 .05,5/09 .1, 6/09 .11. 8/09 .16
Post SRT PSA: 1/10 .12
Latest: 7/9 met 2 rad. oncl, 7/9 cath #6 - blockage, 8/9 2nd corr surgery, 8/9 cath #7 out 38 days, 9/9 - met 3rd rad. oncl., mapped  9/9, 10/1 - 3rd corr. surgery - SP cath/hard dialation, 10/5 - 11/27 IMRT SRT 39 sess/72 gys ,cath #8 33 days, Cath #9 35 days, 12/7 - Cath #10 in place


skeener
Regular Member


Date Joined Dec 2009
Total Posts : 214
   Posted 1/6/2010 4:37 PM (GMT -6)   
:-) Nice smile of the day.
 
For the bonus do you have to use e=mc2. 
 
That's all the physics I know!!
 
Carl
Age:  63 
Biopsy: May 09 showed 2 of 12 cores positive for prostate cancer -- 1 at 5% and 1 at 25%.  Cancer indicated as non aggressive.  Gleason Score: 3+3.
RRP on Oct 23/09 in London, Ontario.  Excellent surgeon. 
7 Weeks Post Op -  The fears I had about bad things about the operation and recovery did not materialise except of course ED!!.  Otherwise, everything went very smoothly.  Incontinence not a problem.  Wear a pad when out just in case. Pain was never a problem.
Pathology:  Unremarkable 
First followup PSA and Visit: Feb 07/10.      


Purgatory
Elite Member


Date Joined Oct 2008
Total Posts : 25393
   Posted 1/6/2010 4:51 PM (GMT -6)   
As they say deep down here in the south, "Pie are round, cornbread are square." (SC physics lesson)
Age: 57, 56 dx, PSA: 7/07 5.8, 7/08 12.3, 9/08 14.5, 10/08 16.3
3rd Biopsy: 9/08 - 7/7 Positive, 40-90% Cancer, Gleason 4+3
Open RP: 11/08, Rht nerves saved, 4 days in hospt, on catheters for 63 days, 5th one out 1/09
Path Rpt: Gleason 3+4, pT2c, 42g, 20% cancer, 1 pos margin
Incontinence:  1 Month     ED:  Non issue at any point post surgery
Post Surgery  PSA: 2/09 .05,5/09 .1, 6/09 .11. 8/09 .16
Post SRT PSA: 1/10 .12
Latest: 7/9 met 2 rad. oncl, 7/9 cath #6 - blockage, 8/9 2nd corr surgery, 8/9 cath #7 out 38 days, 9/9 - met 3rd rad. oncl., mapped  9/9, 10/1 - 3rd corr. surgery - SP cath/hard dialation, 10/5 - 11/27 IMRT SRT 39 sess/72 gys ,cath #8 33 days, Cath #9 35 days, 12/7 - Cath #10 in place


Arnie
Regular Member


Date Joined Aug 2009
Total Posts : 374
   Posted 1/6/2010 4:53 PM (GMT -6)   
.........about that calculation for bonus points. I wouldn't venture a guess on the long and short if "it", but you're certainly not short on humor!
Not to mention time on your hands....:-)
 
Arnie in DE
Age 56 (biopsy & surgery)
PSA at Diagnosis-3.9
Biposy 8/19/08--4 of 12 cores positive; 5% involvement, Gleason 6 (3+3)
 
Surgery 1/26/09-DaVinci Robotic Prostatectomy at Presbyterian Medical Center/HUP-Phila, PA
Dr. David Lee
 
Pathology Report- Adenocarcinoma, no capsular involvement, seminal vesicles clear, lymph nodes clear, negative margins, Gleason 7 (3+4), Stage T2C, NO MX, Prostate 61.8 grams, gland involvement 2-10%
 
Catheter removed after 8 days, totally dry at 3 months. ED issues continue, Viagra (via ADC) nightly (100mgs), VED use in earnest at 6 months. "Ball Park Frank" plumping at this point......ED at 10 months continues to improve, albeit slowly. Continued daily use of 100mg Viagra (ADC). Discontinued pump use; manual stimulation to varying states of erections; achieved penetratable erection on a couple of occasions
3 month PSA--<0.1
6 month PSA--<0.1
10 month PSA--<0.1


Worried Guy
Veteran Member


Date Joined Jul 2009
Total Posts : 3739
   Posted 1/6/2010 4:55 PM (GMT -6)   
Guys,
It's high school physics. You don't need to know how tall I am. Here are a couple of hints:I assumed the density of pee is the same as water. If you use the English system think foot pounds per day.

By the way, I did think of a use for my shrunken, ED challenged, unit. If I silver plate it, it would be perfect for a 10 GHz antenna. I can use it to pick up Disney Channel UK, and RTE 1, 2 on Sky UKs satellites Astra 2A/2B/2D & Eurobird 1 at 28.2°E.

Here's some extra credit for any radio guys out there. How long is Willy?
Yep... a mental case indeed...
Jeff
DX Age 56. First routine PSA test on April 8th: 17.8. Start 2 weeks of Cipro to rule out protatitis.
May PSA: 22.6, 3 weeks later: PSA: 23.2.
Biopsy 6/10/09: 7/12 scores positive, Gleason 6=3+3. Bone scan and C/T scan negative.
RP DaVinci -7/21/2009 @ Univ of Roch Medical Center
Left nerve gone, right partial spared.
Catheter removed - 7/31/2009 Pathology report received:
Gleason 3+4=7, Tumor size: 2.5 x 1.8 cm, location: both lobes and apex.
Extraprostatic extension present; Perineural invasion: present, extensive.
No Malignancy in Seminal Vesicle, vasa deferentia, lymph nodes 0/13
Prostate mass 56 grams. Pathologic Stage: pT3aN0MX
Post Surgery Status:
Potency - 12/11 5 months, Still no activity, zip. Using pump daily since 11/11. No effect with 20 mg of Cialis or 100 mg of Viagra. Shots next?
Incontinence - 8/20 4 full pads per day
.. 9/7 3-4 full pads per day (I'm going to try cutting down on fluids. Bad idea. I know.)
. 9/27 2 months: Still 3 pads per day.
11/14 4 months: Still 3 pads per day. 420ml/day, 91 um leak.
12/11 5 months: Still 3 pads per day. 400-450ml/day Experimenting with Nyquil for 10 days: Can sleep through the night but withdrawal is bad. Stopped 12/20.
Post Surgery PSA - 9/3 6 weeks - 0.05; 10/13 3 months - 0.04 undetectable.


mikey1955
Veteran Member


Date Joined Dec 2008
Total Posts : 673
   Posted 1/6/2010 4:59 PM (GMT -6)   
IC or not. Maybe have a look at trimix or bimix. Getting that muscle up may help a couple others. Officially, it works for me.

Good luck and I always look forward to your posts.

Mike
-Nov/Dec 07, March 08 and Dec 08: Severe perineum pain . Septra/Bactrim for 8 months for diagnosed prostatitis.
-PSA start of 2008: 5.3..... PSA June of 2008: 7.3
-14 DRE all benign or nothing felt
-TRUS Biopsy Nov 08: 5 of 8 cores positive GS 3+3 or 6. 30-65%. Perineural invasion.
-General Health: pretty good, 5' 10", 180 lbs, slim.
-Open RP surgery: May 09 both nerve bundles spared. Bilateral lymph node dissection performed. Discharged 48 hours after surgery.
-Post Surgery Pathology: pT3a N0 MX, extraprostatic extension (EPE), stage III prostate cancer, lymph nodes clear, seminal vesicles clear, Gleason upraded to 3+4 GS 7. EPE within surgical margins. Other than prostate and EPE, all tissue removed negative for cancer involvement.
-Bladder control within 48 hours of catheter removal
-ED ongoing but improving significantly with Trimix at 7 months post-op. Oral ED meds didn't do much.


Worried Guy
Veteran Member


Date Joined Jul 2009
Total Posts : 3739
   Posted 1/6/2010 5:19 PM (GMT -6)   
Maybe with a little trimix and bimix I can get back to my old 2.1GHz size and pick up Australia's Space Operation Service (Earth-to-space) and (space-to-space) communications.

"Honest Officer I was just communicating with the ISS."

Clearly it is dangerous to leave me alone figuring out stuff all day. Supposedly it improves concentration. If they only knew...
Jeff

goodlife
Veteran Member


Date Joined May 2009
Total Posts : 2692
   Posted 1/6/2010 6:37 PM (GMT -6)   
Jeff,
 
Maybe you could sell that idea to cattle farmers.  They could tag their herds, and know exactly where they are.
 
Heck, with enough cow pee, they could probably put blinking lights on them for nighttime roundups !
 
As for you, maybre you could power an electric valave for Willie.
 
Best of luck my friend !
 
Goodlife
Age 58, PSA 4.47 Biopsy - 2/12 cores , Gleason 4 + 5 = 9
Da Vinci, Cleveland Clinic  4/14/09   Nerves spared, but carved up a little.
0/23 lymph nodes involved  pT3a NO MX
Catheter and 2 stints in ureters for 2 weeks .
Neg Margins, bladder neck negative
Living the Good Life, cancer free  6 week PSA  <.03
3 month PSA <.01 (different lab)
5 month PSA <.03 (undetectable)
6 Month PSA <.01
1 pad a day, no progress on ED.  Trimix injections


Sonny3
Veteran Member


Date Joined Aug 2009
Total Posts : 2448
   Posted 1/6/2010 6:51 PM (GMT -6)   
Jeff,

If you are going to branch out into a new line of work, you're going to need a company name.

All this talk about angles of dangle, distances and willes, reminds me of the love story of Janice and Tiny.

They had been dating for years when they finally married. Janice had always only known him as Tiny. Additionally, they had dated for all these years and never been intimate.

On their wedding night, at the motel, they start to undress for the first time together. As Tiny removed his shorts Janice burst out laughing. Pointing at his willie she said is that why they call you tiny? For running down the side of the rather small unit was a tattoo, "TINY".

He sheepishly replied that the knick-name had always been a joke. For if she would just wait a little while the tattoo really said "TICONDEROGA - NEW YORK".

Good luck with your new company name and endeavor,

Sonny
61 years old
PSA 11/07 3.0
PSA 5/09 6.4
Diagnosis confirmed July 9, 2009
12 Needle Biopsy = 9 clear , 3 postive
<5%, 90%, 40%
Gleason Score (3+4) 7 in all positive cores
CT Organ Scan - negative
Nuclear Bone Scan - Negative
da Vinci 9/17/09
Post Surgery Pathology:
Gleason: Changed to (4+3) = 7
Stage: T3a
Tumor Volume 12.5%
NERVES SPARED-positive margin, extra-prostatic extension
30 day PSA 0.4, 50 day psa 0.53, 64 day psa 0.6
IMRT scheduled to begin Nov 30,2009 (74 days post surgery)


MaxBuck
Regular Member


Date Joined Jan 2010
Total Posts : 75
   Posted 1/6/2010 8:14 PM (GMT -6)   
Worried Guy, I have to think you are a Tau Beta Pi member. Correct?
Dx at age 56: Oct 09; PSA 5.8, followed up by 9.9 two weeks later (reproducibility of test - ?)
Biopsy ind cancer in 8/12 cores: Gleason 8 (4+4)
open radical retropubic prostatectomy Dec 4 09
Post-op pathology: 56 g weight, cancer in 21%, Gleason 7 (4+3, tert 5); margins clear, lymph node involvement 0/9, perineural invasion, T2c N0Mx (but showed clear from distant metastasis in pre-op bone scan and CT scan)
Continence data: 1 maxipad/day, with minor leakage when I get up from long seated position; ED pretty complete: some erection possible but current non-functional


Worried Guy
Veteran Member


Date Joined Jul 2009
Total Posts : 3739
   Posted 1/6/2010 9:49 PM (GMT -6)   
Hey MaxBuck

Well, I am a PE and I do qualify, but alas I never did join. I just listened in class and actually remembered how use and do the stuff I was taught. I can figure out anything. Want to know bladder pressure? Go outside and measure how far the pee goes before it hits the ground. How large is the leak in my sphincter? Measure how much I leak in a day and calculate equivalent orifice. (72 um) . How much energy do I save by letting my full pee pads cool down to room temp before I throw them out? How much air can I heat with that energy? 8x10 ft room 1 degree. What is the carbon footprint for my pee pads and wrappers? How many BTU's does a pee pad release when burned? How much CO2?
I weigh my pads on a Mettler lab scale. If you don't measure, how can you tell if you are improving? I plot it with two forecasts: linear and 2nd order polynomial.

And just to add to the geekiness, I hold an Extra Class amateur radio license. The frequencies I quoted above are real. It's all physics.
Now, if I could just get all my plumbing to work to factory specifications.
Jeff

Sonny, I'm going to have to work on that name. It needs to be very short.

geezer99
Veteran Member


Date Joined Apr 2009
Total Posts : 990
   Posted 1/6/2010 10:11 PM (GMT -6)   
Wait, I must have missed something. If the generator is on your ankle then we need to know your boot size because when the outflow gets up to the generator you are going to get back pressure and decrease efficiency. An alternative would be for you to continue to get taller all the time. Since this is the pattern of your engineering stories that shouldn't be much trouble
Age at diagnosis 66, PSA 5.5
Biopsy 12/08 12 cores, 8 positive
Gleason 3+4=7
CAT scan, Bone scan 1/09 both negative.

Robotic surgery 03/03/09 Catheter Out 03/08/09
Pathology: Lymph nodes & Seminal vesicles negative
Margins positive, Capsular penetration extensive Gleason 4+3=7
6 weeks: 1 pad/day, 1 pad/night -- mostly dry at night.
10 weeks: no pad at night -- slight leakage day/1 pad.
3 mo. PSA 0.0 - now light pads
6 mo. PSA 0.00 -- 1 light pad/day


RonE
New Member


Date Joined May 2009
Total Posts : 12
   Posted 1/6/2010 10:35 PM (GMT -6)   
Well, let's see what I can remember about potential energy...
PE = m*g*h j
1L = 1Kg of water
1W = 1j/s
50% efficient

Assume standing for 16 hours and sleeping for 8. No sitting allowed. So, 21uW for 16 hours at 50% efficiency is
2*21uW*16*3600 = 2.4j total
h = 2.4j/0.45Kg/9.6m/s/s = 0.55m = ~22 inches - kinda in the ball park

And, as for half wave dipole antennas at 10GHz...
c = 2*f*d

d = 300000000/10000000000/2 = 0.015m = ~0.6 inches - kinda small
Maybe you considered a different type of antenna?

The plumbing normally gets better with time!
Oct 2007 - Family doctor checkup at age 53
PSA 2.4, ~10% increase from 6 months previous
Nov 2007 - Consult with urologist
Biopsy 1/12 cores positive 1% Gleason 6=3+3
Dec 2007 - Consult with radiation oncologist
Jan 2008 - DaVinci radical prostatectomy
Hospital stay of 3 days, JP drain in 1 week and catheter 10 days
Gleason 7=3+4 with early foci extracapular extension
Surgical margins clear, prostate 5x4x4cm & 43g, involvement 3%
Mar 2009 - Consult with radiation oncologist about adjuvant radiation therapy
Decided to monitor PSA instead of doing adjuvant radiaition
Post surgery PSA undetectable thru Sept 2009


RickyD
Regular Member


Date Joined Dec 2009
Total Posts : 163
   Posted 1/6/2010 11:51 PM (GMT -6)   
well by my calculations:
Watts = eff*rho*g*h*qdot
watts = 20.92E-06
eff = 50%
rho = 1000 kg/m^3  (assuming urine and water have same density)
g = 9.81 m/s
qdot = 450 ml/day = 5E-9 m^3/s   (assumes a 24 hour day)
h = V^2/2g + X (where X is meters from willy to ankle)
to calculate velocity, assume tube is 4 mm ID, A = 1.2566E-05 m^2
V = qdot/A = 3.979E-4 m/s
in hindsight the V^2/2g piece is very negligible and need not be accounted for.

solving for X yields:
X = 0.853 m = 33.6 inch

Yes I am also a PE !!!


Age 55,  PSA = 4.97 on 11/17/09, DRE negative,
Biopsy 12/2/09: 1 of 12 cores positive with less than 5% volume
Gleason 3 + 3 = 6
Prostate Size Estimate on 12/2/09 = 28 cc

Post Edited (RickyD) : 1/6/2010 10:00:20 PM (GMT-7)


Worried Guy
Veteran Member


Date Joined Jul 2009
Total Posts : 3739
   Posted 1/7/2010 7:04 AM (GMT -6)   
Geezer. I should have mentioned adding the drain in my boot. No need to grow taller continuously.

Ricky D and Ron
You guys are right on. I assumed the rate of 450 ml for 24 hours. I figure it goes in spurts, so to speak, so if I have a sufficiently large capacitor I can just assume my flow rate is 450ml / 24 hours. My leak rate is actually about 420ml per day but I made it 450ml so anyone using the English system could call it one pound. With rounding errors, the answer is 32 Inches.

As for the antenna calcs, I should have specified a full wave antenna. c = f * d So multiply Ron's answer by 2 and you (sadly) get 3 cm. Still "kinda small" is a correct answer. Those really are the frequencies for Disney on eurobird and Astra by the way
Bimix and/or Trimix hopefully will allow tuning to lower frequencies. Space operations service is 2.1 GHz Rounding to 2.0 GHz yields c = f * d yields 15cm.

Ricky, I like your calculation for the kinetic energy. It is negligible. The heat content of the pee is much larger than potential energy.
Let's use English system and convert. 1 lb of pee per day body temp 98.6F, Ambient 65F
BTU definition: 1 pound of water one degree f.
Therefore, if I let my pads cool down to room temp I am extracting 33.6 BTU of energy per day that I would normally flush down the toilet.
Converting to metric (1 BTU/hr = 0.293 Watt) yields 0.41 W. I can either simply heat my house with it or use a Peltier thermoelectric generator at 5% efficiency to light a string of 2-3 LEDs.

Since it is winter, I have elected to heat my home with those BTUs. My wife just does not understand the need for a string of LEDs around the pee pad bucket. Women.

You guys made my morning.
Jeff
DX Age 56. First routine PSA test on April 8th: 17.8. Start 2 weeks of Cipro to rule out protatitis.
May PSA: 22.6, 3 weeks later: PSA: 23.2.
Biopsy 6/10/09: 7/12 scores positive, Gleason 6=3+3. Bone scan and C/T scan negative.
RP DaVinci -7/21/2009 @ Univ of Roch Medical Center
Left nerve gone, right partial spared.
Catheter removed - 7/31/2009 Pathology report received:
Gleason 3+4=7, Tumor size: 2.5 x 1.8 cm, location: both lobes and apex.
Extraprostatic extension present; Perineural invasion: present, extensive.
No Malignancy in Seminal Vesicle, vasa deferentia, lymph nodes 0/13
Prostate mass 56 grams. Pathologic Stage: pT3aN0MX
Post Surgery Status:
Potency - 12/11 5 months, Still no activity, zip. Using pump daily since 11/11. No effect with 20 mg of Cialis or 100 mg of Viagra. Shots next?
Incontinence - 8/20 4 full pads per day
.. 9/7 3-4 full pads per day (I'm going to try cutting down on fluids. Bad idea. I know.)
. 9/27 2 months: Still 3 pads per day.
11/14 4 months: Still 3 pads per day. 420ml/day, 91 um leak.
12/11 5 months: Still 3 pads per day. 400-450ml/day Experimenting with Nyquil for 10 days: Can sleep through the night but withdrawal is bad. Stopped 12/20.
Post Surgery PSA - 9/3 6 weeks - 0.05; 10/13 3 months - 0.04 undetectable.

Post Edited (Worried Guy) : 1/7/2010 5:45:05 AM (GMT-7)


MaxBuck
Regular Member


Date Joined Jan 2010
Total Posts : 75
   Posted 1/7/2010 8:26 AM (GMT -6)   
Good grief. I thought that as a PE I'd be in a substantial minority here (as I am in pretty much any social gathering). What is there about us engineers that we find ourselves with PCa and on this board? cry

Seriously, it's great to have this resource here. But please forgive me for not getting involved in the thermodynamics calcs. That's an area where I'll do the work - if someone is paying me to do it. :-)
Dx at age 56: Oct 09; PSA 5.8, followed up by 9.9 two weeks later (reproducibility of test - ?)
Biopsy ind cancer in 8/12 cores: Gleason 8 (4+4)
open radical retropubic prostatectomy Dec 4 09
Post-op pathology: 56 g weight, cancer in 21%, Gleason 7 (4+3, tert 5); margins clear, lymph node involvement 0/9, perineural invasion, T2c N0Mx (but showed clear from distant metastasis in pre-op bone scan and CT scan)
Continence data: 1 maxipad/day, with minor leakage when I get up from long seated position; ED pretty complete: some erection possible but current non-functional


Squirm
Veteran Member


Date Joined Sep 2008
Total Posts : 744
   Posted 1/7/2010 11:10 AM (GMT -6)   
I'm also a PE (in electrical). I'm currently studying to get my second license in civil. I've been studying the water resource sections recently.

Worried Guy
Veteran Member


Date Joined Jul 2009
Total Posts : 3739
   Posted 1/7/2010 12:44 PM (GMT -6)   
It does seem like there are a lot of engineers here. But even if there is no correlation, 1 in 6 will have PCa in their lifetime so we have a lot of material to work with. Also we 50, 60, 70 year old engineers were the early adopters of computer technology at a young age so it is natural that we would look to the internet more than our non technical schoolmates.

Lastly, who else but geek engineers would bother to read a discussion thread entitled: "More Physics...Standby Power"? Hopefully I am not the only one here who sees the humor in aiming a silver plated stub at Eurostar to pick up the Disney Channel on 10.7 GHz.

This is the only place I know where you can have these kinds of discussions.
Jeff

geezer99
Veteran Member


Date Joined Apr 2009
Total Posts : 990
   Posted 1/7/2010 4:56 PM (GMT -6)   
Jeff said
"This is the only place I know where you can have these kinds of discussions. "

Actually I believe that there still a few high security mental hospitals where they have the same sort of discussions. Although modern thinking in mental health is that the inmates "patients" should use metric measurement. The English system is just plain crazy.
Age at diagnosis 66, PSA 5.5
Biopsy 12/08 12 cores, 8 positive
Gleason 3+4=7
CAT scan, Bone scan 1/09 both negative.

Robotic surgery 03/03/09 Catheter Out 03/08/09
Pathology: Lymph nodes & Seminal vesicles negative
Margins positive, Capsular penetration extensive Gleason 4+3=7
6 weeks: 1 pad/day, 1 pad/night -- mostly dry at night.
10 weeks: no pad at night -- slight leakage day/1 pad.
3 mo. PSA 0.0 - now light pads
6 mo. PSA 0.00 -- 1 light pad/day


mikey1955
Veteran Member


Date Joined Dec 2008
Total Posts : 673
   Posted 1/7/2010 5:12 PM (GMT -6)   

If I would reference my antenna, as a 1/4 wavelength monopole over ground, it wouldn't be a practical interpretation at the frequencies involved.

In simple terms, just a whole lot shorter (big sigh).


-Nov/Dec 07, March 08 and Dec 08: Severe perineum pain . Septra/Bactrim for 8 months for diagnosed prostatitis.
-PSA start of 2008: 5.3..... PSA June of 2008: 7.3
-14 DRE all benign or nothing felt
-TRUS Biopsy Nov 08: 5 of 8 cores positive GS 3+3 or 6. 30-65%. Perineural invasion.
-General Health: pretty good, 5' 10", 180 lbs, slim.
-Open RP surgery: May 09 both nerve bundles spared. Bilateral lymph node dissection performed. Discharged 48 hours after surgery.
-Post Surgery Pathology: pT3a N0 MX, extraprostatic extension (EPE), stage III prostate cancer, lymph nodes clear, seminal vesicles clear, Gleason upraded to 3+4 GS 7. EPE within surgical margins. Other than prostate and EPE, all tissue removed negative for cancer involvement.
-Bladder control within 48 hours of catheter removal
-ED ongoing but improving significantly with Trimix at 7 months post-op. Oral ED meds didn't do much.


goodlife
Veteran Member


Date Joined May 2009
Total Posts : 2692
   Posted 1/7/2010 5:21 PM (GMT -6)   
I refer to mine as a rabbit ear. The floppy kind of course ! Not sure the nerves are connected, so I am getting no reception. Who cares about the frequency, which is none ?
Age 58, PSA 4.47 Biopsy - 2/12 cores , Gleason 4 + 5 = 9
Da Vinci, Cleveland Clinic  4/14/09   Nerves spared, but carved up a little.
0/23 lymph nodes involved  pT3a NO MX
Catheter and 2 stints in ureters for 2 weeks .
Neg Margins, bladder neck negative
Living the Good Life, cancer free  6 week PSA  <.03
3 month PSA <.01 (different lab)
5 month PSA <.03 (undetectable)
6 Month PSA <.01
1 pad a day, no progress on ED.  Trimix injections


Worried Guy
Veteran Member


Date Joined Jul 2009
Total Posts : 3739
   Posted 1/7/2010 6:11 PM (GMT -6)   
Hey Goodlife. Geezer.
Careful now, we all might get lop-eared rabbits for our birthdays.

Let's see,... The rabbit ears don't work, we've got no connection, no reception...
Quick! Somebody call the cable company and complain!

Mikey You can plate your abdomen and go with a 5/8 wave. It might give you a little extra length.

(I've got a big project due Tuesday night that is a killer. Thanks goodness you guys are here for the diversion. I need it.)

May our 1/2 wave dipoles receive only UHF and below. (But not VHF - wouldn't want to trip over it.)
Jeff

cocrgolfer
Regular Member


Date Joined Oct 2009
Total Posts : 171
   Posted 1/7/2010 6:26 PM (GMT -6)   
Hey guys, something I don't understand. It's common knowledge that PCa tends to strike the top studs more than other groups of men. So why do so many engineers get it?

Steve
Age-66
PSA-6.5
8/09-14 core biopsy
4/14 cores pos. GS-(3+4)7
10/13/09-robotic RRP Moffitt Cancer Center Tampa
Post-surg path-two nerves spared, capsule, margins, seminal vesicles neg.
GS-(3+4)7, tumor <5% in 83gm sample.
1/5/10-first PSA-<0.1
IC and ED.

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