Sunday, January 01, 2006

MARCO Grand Rounds, January 1, 2006

From Warren, KD4GUA

We will attempt to finish up the discussion on NASH (Non Alcoholic SteatoHepatitis) Sunday which is New Years Day. This is a common, often "silent" liver disease that occurs in people who drink little or no alcohol and is becoming more common because of the greater number of Americans with obesity.

The final CME standings will be on List Serve next week. A certificate of attendance will accompany your next newsletter.

If you have a topic for discussion please tack it on the end of this message. Since it is time for cabin fever up north, expect all you "fine folks" to be listening to 14.308 at ten Eastern on the first day of the new year. Put the snow shovels away for one hour and enjoy the heat emanating from the deep South. By the way, Dean Martin had a mother-in-law, aged 92 that didn't need glasses! (She drank it straight from the bourbon bottle!).

Wednesday, December 21, 2005

MARCO Grand Rounds - Year End Wrap-Up

From Warren, KD4GUA:

There will be no formal net program on Xmas Day. There will be greetings etc., instead. The program "The New Kid On the Block--Non-alcoholic cirrhosis--will continue on New Years Day.

We have been having excessive splatter from the two powerful Spanish-speaking stations on 14.310 that do not identify. (Blogmaster's note: One of them is AD4C). We have asked them to move but to no avail. This has been going on for over two years...we are asking you to write and notify ARRL to investigate. (hqinfo@arrl.org)

Total checkins for 2005 were 1,517 (average 29.17) below 2004's, 1,534 (average 29.50) and 2003s' 1,519. (average 29.23). Drop-off contributed by attrition, hurricanes and low solar cycle???

2005 was much higher however, than 1998 (694 checkins), 1999 (766), 2000 (1,035), 2001 (1,153) and 2002 (1,326).

Certificates of CME participation will be included separately in the next Newsletter. Those who are not members or are delinquent are asked to join MARCO so we can forward your certificate. (Physicians $25; Associates $15...Marco, 144 Head of the Tide, Belfast, Maine 04915.)

Please advise net control what subjects you would like to have discussed in 2006.

Final standings will be posted after January 1. It has been a pleasure meeting with such a fine group each Sunday--Let's keep it going....Warren KD4gua.

P.S. Eat plenty of goodies between now and next year because people gain weight between New Years and Christmas, not between Christmas and New Years!!!!

Monday, December 12, 2005

MARCO Grand Rounds for December 11, 2005

From Warren, KD4GUA:

Last Sunday we discussed Medicare Part D. We will continue this discussion this Sunday. Correction: There IS a Medicare Part C--it consists of "Medicare Advantage" plans which give the HMOs and PPOs the power to regulate your Medicare A & B. Sorry about that--we all learn, more or less.

A first (second?) for Marco--Ellen, KC9ARN checked in Sunday from 30,000 ' (She is a stew for American Airlines)

2005 is almost gone--to get your CME Category II hours up tune in for the remainder.
A certificate will be issued to all those with over 5 hours credit.

MARCO Grand Rounds for December 11, 2005

Frm Warren, KD4GUA:

Last Sunday we discussed Medicare Part D. We will continue this discussion this Sunday. Correction: There IS a Medicare Part C--it consists of "Medicare Advantage" plans which give the HMOs and PPOs the power to regulate your Medicare A & B. Sorry about that--we all learn, more or less.

A first (second?) for Marco--Ellen, KC9ARN checked in Sunday from 30,000 ' (She is a stew for American Airlines) .

2005 is almost gone--to get your CME Category II hours up tune in for the remainder. A certificate will be issued to all those with over 5 hours credit.

Thursday, December 08, 2005

MARCO Grand Rounds for December 6, 2005

From Warren, KD4GUA:

Last Sunday we finished up sleep...this week by demand we will be discussing PART D MEDICARE which, when, who should enlist and which plan is most cost effective. There are some deadlines approaching for possibly you and for your patients. Tune in and find which plan is best. And, oh yes, there is NO part C Medicare--yet.

Monday, November 21, 2005

MARCO Grand Rounds for November 20, 2005

From Warren, KD4GUA:

Last Sunday we competed with contesters (again) but managed to conclude "AUTISM". This Sunday we will update "Sleep & Sleeping Disorders" and discuss the new drugs Lunesta and Remelteon--do they work and if so how good are they? Why can't people go to sleep and stay asleep? How much sleep do we really need? Why do we sleep?

We are looking for new topics to talk about. If you would like to present a program say so, don't be bashful.

Good hearing from Joe W5DJH in Houston, Ed W4UVS in Oak Ridge, Miles W3DRB in Elizabethtown, Ian, K3iK in Shavertown, Bob VE3OQM in Hamilton.

Monday, November 07, 2005

MARCO Grand Rounds for November 6, 2005

From Warren, KD4GUA:

Last week we discussed GAS. This week we will talk about AUTISM--a symptom and not a disease. It affects 6 out of every 1000 newborns and is more common than we think. Chip N5RTF will be on board to answer questions concerning the NP side of the problem.

We lost Gerald Bellehumeur MD, former anesthesiologist and pilot. His wife Susan renewed his membership in Marco in his honor.

Since we failed to have a topic for discussion last week (October 30), no CME credits given for checking in--the contestors drowned out everyone.

Sunday, November 06, 2005

More on Ham Radio in Emergencies

From Bob Conder, K4RLC:
The November issue of the Southeastern Repeater Journal has articles by
three hams who were in the Mississippi-Louisiana gulf area post Katrina,
either conducting communications or working with the Red Cross Disaster
Services. It speaks to what it was like and what worked for communications.

... get a copy of the entire issue if you can.

Basically, LCD radio services were what worked - lowest common denominator
- VHF and HF phone simplex. Battery operated, off the grid.

Bob K4RLC

Ham Radio in Emergencies

Smitty, W6CS, forwarded this discussion from Rick Ellinger:

A few months ago, NBC's Tonight Show staged a race between a pair of ham-radio operators with Morse-code keys and a couple of kids with text-messaging cellphones to see who could communicate faster. The hams won hands down, proving, in the minds of some, that old technology could hold its own against new. In recent days, ham radio was put to the test again by Hurricane Katrina. This time, however, lives were at stake.

In the world of design engineers and electronics in general, change is essential. Designers work diligently to make the fruits of their labors obsolete almost before they see daylight. The turnover in technology is sometimes like a flood, with old being washed away by new over and over. Often, the new beats the heck out of the old. But there are times when old isn't necessarily bad; in fact, sometimes old works when new doesn't. And then we're glad that old is still around, or at least we should be.

Wireless technology, while relatively new to many consumers, is of course not new at all. A few (very) old-timers remember the original "wireless" of radio. The revolution wrought by the pioneers of wireless changed the world then, and the technology behind that revolution has been re-invented and re-applied time and again. Its pre-eminent incarnation today is our near-ubiquitous wireless communications infrastructure, which has freed us from the shackles of landlines and made our mobile lifestyles possible. Technology truly is great stuff.

Until, of course, a monster hurricane comes along to render it nearly useless. Here we see a scenario in which a flood literally swept away the new. As Hurricane Katrina's fury hammered the Gulf states on August 29, the communications infrastructure took a devastating hit. Telephone service, including wireless, became at first intermittent and then unusable in many localities. Where there was phone service, 911 switchboards were often unreachable due to the massive volume of calls. The response of local authorities, now termed "confused" by deposed FEMA chief Michael Brown, wasn't helping much. The Gulf Coast was about to descend into darkness, chaos, and, worst of all for many, silence.

But proponents of the old were at the ready. The "old," in this case, is ham radio. In the eyes of the "man on the street," ham radio has a pretty stodgy reputation. Aren't hams still using Morse code? Don't some of them use radios with tubes, for goodness sake? What the "man in the street" probably doesn't know is that it was amateurs who advanced the radio arts early in the 20th century. Down through the decades, amateurs have embraced (and often driven) all of the innovations in wireless technology, up to and including all digital modes and the Internet. But many have stayed in touch with their roots, which is good old-fashioned analog HF operation. And while amateurs have a longstanding tradition as innovators and experimenters, they also have a mandate that comes with their licenses: to be ready, willing, and able to provide emergency communications whenever and wherever they're needed.

As Katrina bore down on the Gulf region, amateur radio operators, under the aegis of the American Radio Relay League's (ARRL's) Amateur Radio Emergency Service (ARES), prepared to swing into action with emergency networks that would run health-and-welfare traffic into and out of the disaster zone. As early as the Monday following the storm, hams throughout the hurricane zone were putting emergency stations on the air. In one instance, hams were instrumental in the rescue of 15 people clinging for life to a New Orleans rooftop. Meanwhile, in Alabama, amateur SKYWARN weather nets kept the National Weather Service apprised of conditions throughout the state. In hard-hit sections of Mississippi, hams running off generators and with makeshift antennas were the only means of communication, getting word to out-of-state friends and relatives concerning their loved ones.

There were numerous other instances of hams helping those who were not simply inconvenienced by the storm, but whose lives were in imminent danger. Now that things have calmed down in the Gulf region, many of the emergency nets have stood down. But hams continue to serve the public in the many areas that are still without power or phone service.

As our nation collects itself in the aftermath of the Katrina disaster, President Bush has promised federal reviews of what went right and what went wrong. One of the findings of those inquiries should be that the federally-instituted Amateur Radio Service, which functions under the licensing authority of the FCC, stood tall when the country needed it.

Amateur radio currently faces various threats to its existence. Chief among those is the advent of broadband-over-powerline (BPL) technology, which, if broadly adopted, has the potential to cause widespread interference to HF communications, not just for amateurs but for other services that use the HF spectrum.

Amateurs and the ARRL have made a lot of noise about BPL, asserting that it could seriously hamper their efforts and those of relief agencies such as the Red Cross and Salvation Army, in the event of a disaster such as Katrina. It's rumored, though, that the same FCC commissioners who have given their blessing to BPL field trials will now take a much harder look at the technical issues concerning BPL and its interference potential in the HF spectrum. Let's face it: The federal government didn't handle the emergency in the Gulf very well; it'd be prudent for it not to sanction a technology that could impede one of the few things that actually worked.

Many readers of this newsletter are amateur radio enthusiasts. If you are, and if you haven't already done so, consider writing your congressman to express your concern about the future of the Amateur Radio Service, especially in light of its outstanding efforts in recent days. Remind your elected representatives that a vibrant and unimpeded Amateur service can and will be a lifesaver when disaster strikes. Also, consider how you yourself might help. What if a hurricane, tornado, or earthquake ravages your area? Are you prepared to get on the air without relying on the mains to handle emergency traffic? Get in touch with your local amateur-radio club and find out how you can pitch in.

Your cell phones and wireless routers are indeed great stuff, but so is a good old HF transceiver. We shouldn't always be in such a hurry to let the flood of new technology wash away the old. The geek down the block with all the antennas on his property could turn out to be your best friend someday. Because sometimes, old trumps new.

Saturday, November 05, 2005

Soil Liquefaction by Hurricane Katrina, Reply.

Dave, KI5NG, in response to N5RTF's proposal:

Having grown up experiencing hurricanes on the Texas coast (Deborah [cat. 1], Carla [cat. 4], Beulah [cat. 3]. and Alicia [cat.3]; I don't count Rita, during which we only had tropical storm-force winds) and having been in the eyes of the first three, I remember something that I rarely hear mentioned in this day of live reporting.

As the eyes of Carla and Beulah approached, there was a "buzzing" sound, very loud, that most resembled the sound made by a four-piston-engined bomber flying overhead. I remember WWII-era adults saying things like, "What idiots would be flying around in weather like this?" My dad, who had first heard this during a cat. 4 1949 hurricane (they weren't named back then), recalled that this sound seemed to occur when winds exceeded 125 mph or so.

Every dentist knows that freshly mixed dental stone (modified plaster-of-Paris) is virtually thixotropic before it sets. To get it to flow into the intricacies of our intra-oral impressions, we subject it to a vibrator that causes the stone to liquefy. During dental school, when there might be several of these things going at the same time, the sound was very similar to that of a piston-powered multi-engined plane or .... like the sound I heard during the peaks of Carla and Beulah.

I have always assumed that such liquefaction of dental stone followed the same physics as soil liquefaction during an earthquake. The interaction of strong airborne vibrations with the ground and water would certainly be highly complex, but why couldn't such vibrations, under the right conditions, produce standing waves of highly significant energies?

I think your deduction is brilliant. If I were a graduate student, I would be wetting my pants to get approval to do a thesis on this.

David - KI5NG

Soil Liquefaction by Hurricane Katrina?

This post from Chip, N5RTF of New Orleans:

During hurricane Katrina, up to 7 levee breaches occurred simultaneously in widely separated locations, affecting structures of different ages and design, all which have withstood many previous high water and wind events. After a good deal of thought plus listening to 'experts' on the news who clearly don't have a clue, I sent the following hypothesis to several engineers including a group up at Bruce's universty in Buffalo for evaluation. I pass it on to you guys for critique and/or dissemination. Do you think this is possible?

Multiple organizations have dispatched investigators to analyze causes of levee failures in New Orleans during hurricane Katrina. Theories include veins of weak soil, overtopping, undermining, and defective construction. Most fail to explain why levees which have been in place for 15 years failed simultaneously during this, but not other, storms.

I am writing to you because of MCEER's dual interest in hurricanes and earthquakes. It seems to me that the damage to several of New Orleans' levees closely resembles that caused by soil liquefaction during earthquakes. Although New Orleans has never experienced a fault-based quake, microseismic activity has been clearly recorded during hurricanes on multiple occasions.

It is my proposal that the 100+ decibel roar of a Category 4 hurricane for 6-8 hours, along with conduction from vibrating structures into the ground through foundations and anchors could produce an environment for wave summation similar to that seen in an earthquake. In this situation the saturated soil of an earthen dam would be especially susceptible to liquefaction and failure.

As a physician who lives and works in New Orleans I have more than an academic interest in finding the correct answer. If a hurricane can acoustically liquify soil, no earthen levee will ever be safe in a hurricane-prone area. This has major implications in the rebuilding of New Orleans.

Thank you for taking the time to read this. If you feel that the idea has merit, I hope you will pass it along to persons within your center who have the resources to pursue it further.

Sincerely,

Thomas L. Keister, Jr. M.D.

Thursday, November 03, 2005

MARCO Grand Rounds for October 30, 2005

From Warren, KD4GUA:

Last Sunday we were "rained out" by the contestants. This Sunday we will talk about "GAS." We have discussed this before and have learned a lot....for example, food from the mouth can reach the iliocecal valve within 30 minutes (according to our radiologist Ian, K3IK). Question: How much blood does it take to color the stools black? Tune in Sunday, 10 a.m. eastern 14.308. CME standings will be posted next week. If there are no alternatives we will discuss "AUTISM" the following week and hope that we can pick up our Prez Chip Keister N5RTF our NP consult. This condition, believe it or not, is present in 6 out of each 1000 births and no (at this time) it is not caused by MMR injections.

Wednesday, October 26, 2005

MARCO Grand Rounds for October 23, 2005

From Warren, KD4GUA:

Last week we disposed of the flu for the year (?) This week we anticipate a contest week and we will try to discuss "GAS." If unable we will have VOX POX, voice of the people--each one asking a question--remember there are no dumb questions, only dumb answers.

Hurricane Wilma gave the trees a hair cut in the Tampa Bay area with winds of about 45 mph but it came and went so fast it didn't have time to do much damage locally. Now, however, there are 3 more coming along--Florida is becoming a bowling alley for hurricanes, 8 in the past 15 months!

At least they blow away the pollution like a big broom and leave the air brisk and clean. We need more WINDMILLS so we can cut down on electric bills to pay our rising house insurance.

Wednesday, October 19, 2005

MARCO Grand Rounds for October 16, 2005

From Warren, KD4GUA:

Last week we discussed "Flu" and since we didn't have time to finish we will continue this Sunday. Harry, WB9EDP, the "correctional medicine man," invited all members to join him in a tour of the largest prison in the U.S. Prisons are a good target for influenza.

Since the news about Avian Flu is oncoming, keep us informed of any information you may have received or any cases in your locale.

The hurricane boys, Chip, N5RTF, John WB5BHB and John AA5KV were all on board last Sunday as was Ed W4UVS from Oak Ridge, TN.

The 40 meter 7.225+ MediShare net on Monday registered 8 checkins--one pre-dental girl student from Stony Brook, N.Y. wanted to spend some academic time overseas and Bill N5QF was able to connect her to Sri Lanka.

Hurricane coming, may not be on the air this Sunday--more later. Warren KD4gua.

Thursday, October 13, 2005

MARCO Grand Rounds for October 9, 2005

From Warren, KD4GUA:

Last week we finished an update on blood transfusions.

This week we will discuss "Influenza." Most people don't realize but all flu is transmitted from birds, namely ducks and geese +.

The MediShare net picked up steam Monday night on 7.227 with about 5-6 participants. If you tune in and the freq is in use, go up...as generals can't go down.

Things seem to be settling down (?), propagation picking up, weather improving and Danny Center's leg getting better. Chip had the tree removed from his bedroom--any more GOOD news?

Thursday, October 06, 2005

Gulf Coast Members Back in Action

Both Chip Keister, N5RTF, and John McCann, WB5BHB checked into MARCO Grand Rounds on October 2. It was wonderful to hear them both.

Chip had to leave to supervise tree removal at his house. He reports that there were several trees down and a 500-lb limb hanging precariously over the driveway. The roof is missing some tiles also, but overall the house is not in bad shape.

The neighborhood has gas and electricity, while telephone and Internet service has not yet been restored. The water in the taps is not considered to be potable. (Did you ever witness anyone in New Orleans drink water? I can't recall doing so...)

-KM2L

MARCO Grand Rounds for October 2, 2005

From Warren, KD4GUA:

Last week we discussed "HOW SAFE IS THE BLOOD SUPPLY?" The topic will be continued this Sunday 14.308 at 10 a.m Eastern as we ran out of time. We hope to discuss PROCRIT as a substitute for packed cells.

As of Sunday (October 2) we have had 1,164 check ins for 2005. We had 1155 in 2004, 1119 in 2003 and 1006 in 2002-that is at this time in each year. TX to the computer for keeping these figures.

If you have a problem that needs discussion don't be afraid to speak up--we all learn that way. If you would like to try your turn as net controller do likewise.

When I attended a FAA Flight Surgeons school we had to put in writing how to put on an overcoat. If you think that is easy TRY IT. We did it and you can do things you didn't know you could. So, don't be afraid to speak up, that's what the mike is for. We really need more hecklers in the audience. Be a heckler Sunday--should be fun.

Thursday, September 29, 2005

K4RLC's First-Hand Account of Hurricane Disaster Relief

-Got back last nite after 17 days deployed with American Red Cross Disaster Mental
Health Team.

-My time was spent all along the Mississippi coast, from east Biloxi to the wild
west of Pearlington, on the Louisiana border, which was really "ground zero" for
Katrina. Worked in a Neighborhood Care Team, visiting with people right in the worst
of the disaster, who were trying to rebuild their lives, among the rubble. We provided
"psychological first aide" while giving out cold Gatorade, cleaning supplies,
MREs, baby food, Huggies, Cliff bars, and anything else I had packed in the F-350
van at the warehouse. Giving some people a cold Gatorade, while they were without
electricity or potable water, you'd think we gave them a millon dollars.

-It was an incredible and a humbling experience.

-I was so impressed by the resilience of the human spirit of those who lost their
homes, cars, jobs, possessions, but who will just start again to rebuild their lives.
This experience has changed my understanding of PTSD.

-One of the best experiences was the two days I spent in a Buddhist temple in the
Little Saigon section of East Biloxi, MS. It had been flooded about 8 to 10 feet.
40 Vietnamese Buddhists were in the back room, and had to pull down the ceiling
tiles to crawl in the attic to survive. I think of all the folks I saw (poor or
rich, whatever race or ethnicity) the Buddhists had the best coping skills for such
a tragedy.

-I also got to visit, interview and photograph hams in the disaster areas (behind
regular Army and National Guard checkpoints). I'm trying to write something for
QST on this. The most incredible one was ED, W4AGA, who set up a full HF and VHF
station in "Yankee Stadium" Compassion Central in Biloxi. ED only has
one leg!

-For those suited to this type of work, I would recommend it. However, it is not
for everyone, as we had a large and unfortunate bail out rate. There are many skills
not related to mental health needed, but the most needed is a good sense of humor
(psychologically) and military or backpacking experience (to stand harsh physical
environment).

-Alanna has made me take lots of showers, although I still don't feel clean yet.
Need to hit the sauna at the Y for a few days. And eat lots of bran (MREs are carb-o-licious).

-Thanks to all for your kinds thoughts, prayers and help with the family while I
was gone. Need to go to my beach house to check for roof damage from Ophelia.
Neighbor walked the lot and said all was ok, but he doesn't have a key (yet). Any
excuse to go to the beach is a good one.

-Thanks again.

Bob Conder K4RLC
Raleigh, NC

Upcoing MARCO Grand Rounds, Oncober 2, 2005

From Warren, KD4GUA:

This Sunday we will discuss something that pertains to all of us at one time or another, "How Safe is Our Blood Supply?'

There are a lot of things going on out there, such as the new Nucleic Acid test for HIV which lowers the window to only 11 days and costs only $5. What about Procrit taking the place of blood? Is giving your own blood prior to surgery still in vogue? What tests are run on blood? Why is there a shortage of blood?

Tune in 14.308 Sunday morning, 10 a.m. Eastern Time.

Friday, September 23, 2005

MARCO Grand Rounds for September 18, 2005

From Warren, KD4GUA:

Last Sunday we got half-way through the maze of scans--"Electron Beam Tomography--Godsend or Scam?" This is the ultrafast spiral job that tells if you have calcium in your coronaries. We still have to discuss the newest, the Siemens Somatom Sensation 64, which is able to give a relatively clear picture of the coronaries without invasion--only the big boys, Hopkins, Mayo, Mass General, Cleveland Clinic and the UCLA Medical center have them right now.

All of our members seem to have come through Katrina OK--let's hope its dittos with Rita---Here are the Hurricane Emergency Frequencies you should monitor: all 20 meters: 14.265 Salvation Army; 14.300 Maritime Mobile Service; 143.03 International Asst. & traffic; 14.325 Hurricane Watch. On 40 meters: 7.240 Red Cross; 7.248 Texas Races; 7.265 Salvation Army, 7.285 Louisiana ARES Emergency day. Do your duty and pass on any traffic.