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sci.electronics
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uart needed i need to find a uart that will interface to an and do the following k baud data bits stop bits no parity ability to do break detect irq or output pin irq on character received i m using a dallas ds at mhz clone but it won t do break detect i ve looked at the etc any help would be appriciated
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7,501 |
sci.electronics
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eico tube tester repairs i had the good luck to obtain an eico dynamic conductance tube tester for a song unfortunately i was a little out of key the only thing wrong with it was an open meter movement does anyone know where i can find either another meter movement like it a dead but not the meter dead unit or schematics to specify the current scale of the meter movement i can cut and paste a more sensitive movement in if i can find what the full scale current was or is eico still contactable the thing is a model nope not a joke or any sort of snide reference r g
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re pads question how do i go from a schematic pcb hi in article c svup i i news cso uiuc edu rky uxa cso uiuc edu tall cool one writes after i have produced a schematic with pads logic how do i import it into pads pcb to create a pcb pattern the only way i ve gotten it to work is to output a futurenet netlist and then import this into pads pcb is there another way of doing this i didn t see any information in the instructions provided but i might have missed something any suggestions would be greatly appreciated thanks sorry it s german but i hope you understand it uebertragung der schaltplan daten sch in die board daten job pads logic in out reports net list select pads pcb net list output file name filename angeben pads pcb in out ascii in ascii input file name filename angeben errors aoutput file name filename angeben nicht cr jetzt sind alle bauteile auf einem haufen und muessen mit move verteilt werden viele gruesse uli
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re how can uf be different from two in series in article apr princeton edu mg cs princeton edu michael golan writes the board itself is also identical with room for all three caps the us can versions is clearly indicated in both places how does that make sense is essentially for caps there are just standard caps no special w type precision this may be a safety issue the csa is more paranoid in certain areas than ul and such two caps in series means that you don t have a short if one of them shorts all work is one man s work henry spencer u of toronto zoology kipling henry zoo toronto edu utzoo henry
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7,504 |
sci.electronics
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lead acid batteries concrete i was just wondering one thing actually two i hope that this is the proper place to post this subject why does a lead acid battery discharge and become dead totally unuseable when stored on a concrete floor i decided to bring the battery in from the lawn mower and the motorcycle from the unheated garage this year to preserve them and i just went to use them and noticed that not only do they not work but they act like the two terminals are shorted i asked a friend and he said that you should never do that cause it ruins them but he couldn t tell me why thanks camter astro ocis temple edu
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7,505 |
sci.electronics
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re ir remote control receiver ab freenet carleton ca marc dion writes for a project of my own i would like to build a infra red remote control receiver for regular vcrs and tvs remotes does anybody have any info or tips on how to build such receiver in particular a which photo detector should i use which wavelength do remotes use b which ics or circuit should i use c any suggestions for circuit layout please reply to this group if you wish but as well via e mail my link to usenet is not always available i d like to see this info as well as for wavelength i think you re primarily going to find two nm a bit and or nm a bit usually it is about nm either way the two most common i have seen were and but i have also heard of and i m not sure that the nm one way or another will make a great deal of difference another suggestion find a brand of tv that uses an ir remote and go look at the sams photofact for it you can often find some very detailed schematics and parts list for not only the receiver but the transmitter as well including carrier freq specs and tone decoding specs if the system uses that duane
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7,506 |
sci.electronics
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read only if going to iscas in chicago this is message is only of interest to those going to international symposium on circuits and systems that is being held in chicago this may i checking to see if there is any people out there who would be interested in getting together for a pickup game of soccer during the off hours of the conference if so could you e mail me at philc macs ee mcgill ca i ll bring a ball if you know someone who is going to the conference and you know that they are avid soccer players please pass on this message to them also if someone in chicago is going to the conference please let me know if there is any field near the hotel where we can play thanks bye philip crawley
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7,507 |
sci.electronics
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re help mc a real time clock standby mode in article r b inn ct flash pax tpa com au mgregory flash pax tpa com au martin john gregory writes i am having trouble obtaining the specified standby current drain from a mc a real time clock lowest current drain i can acheive at v vcc is ua this is three times the specified maximum made sure that reset is asserted for trlh after powerup and as is low during this time made sure that there is a cycle on as after the negation of rd or wr during which stby was asserted are any of the inputs to the chip coming from ttl standby drain specs for cmos chips typically apply only if inputs are pulled all the way down to zero or all the way up to vcc ttl isn t good at doing the former and it won t do the latter at all without help from pullup resistors this sort of thing can easily multiply power consumption by a considerable factor because the cmos transistors that are supposed to be off aren t all the way hard off all work is one man s work henry spencer u of toronto zoology kipling henry zoo toronto edu utzoo henry
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7,508 |
sci.electronics
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membrane keypad with custom legend i had a catalog with membrane keypads but i dunno what happened to it and it was so long ago that i forget the name of the company anyway you could make your own legend and slip it behind the bezel really nice and reasonably priced can anyone tell me where to get some more of these critters i ve tried several places but none of them seem to have keypads which allow you to use your own legend any suggestion would be appreciated larry d pyeatt the views expressed here are not internet pyeatt texaco com those of my employer or of anyone voice that i know of with the possible exception of myself
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7,509 |
sci.electronics
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los angeles freeway traffic reports oops that s knx knbr is up in frisco and down at doug san fran can t be the city jack webb told me so claar
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7,510 |
sci.electronics
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re long distance ir detection sburton dres dnd ca stan burton writes i would like to be able to detect the angular position low accuracy of an ir emitting source at a distance of about meters more is better in daylight the ir source could be emitting a signature i m leaning toward khz square wave with duty cycle i am considering the use of a quadrant detector from centronic inc to give information to a pan tilt head to point the sensor and thus determine the angles for the source i am considering wazing the heck out of an ir led s possibly an optek op or motorola mled wazing would mean at least amp current pulses at this current the duty cycle of the led drops to and i would need to cycle five of them in turn to get the required has anyone done something like this yeesh you will be nailing those irleds may i suggest getting your mitts on the siemens sfh irled this unit is designed to take some big current pulses if you can get your duty cycle down a bit it will output nearly a watt mw with real short duty cycle times nice thing about the sfh is that it is cheap i got mine for about cents a piece even though i had to buy of them btw i have seen irleds with outputs up to watts honest watts i don t have the book here at work so i can t recall the company name the watter ain t cheap around but if you want some power mamamia that s pretty hot they also have a watt a watt and a watt device in their line and will sell small quan to individuals if you are interested i can find the book at home and get the pertinent info now as for the position detector you might try eltec in florida phone number listed in the etid is they seem like nice people their specialty is passive infrared detection devices so they might be able to help you out i m curious about your applications if you don t mind saying the device sounds like it could be useful in a lasertag game although you d need to up your carrier signal concept to khz duane
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answers to many electronics questions i have notice a lot of electronics questions by people who are obviously not tuned in to electronics many of them have rather simple answers and many of them require a circuit diagram rather than muck up the network why don t you write to me send a self addressed stamped envelop and i ll answer your questions if i can w l willis p e fern circle clemson sc
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re need to find out number to a phone line in most areas of the country serviced by ess or cess your phone paula nlbbs com paula stockholm cumberland maine usa
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re laser vs bubblejet kolstad cae wisc edu joel kolstad writes one other thing there are bubblejets and then there are bubblejets there are a few bubblejets out there that produce rather mediocre output such as hp s dinky little bubblejet whereas most produce really good looking output such as hp s deskjets ibm and canon both produce some of the really good style bubblejets p s if you re in the market for a portable bubblejet printer i can highly recommend the hp portable deskjet although i ve heard the portable canons are good too i needed pcl support myself with the deskjet portable you even get an undocumented pcmcia card slot i second that suggestion although i don t own the hp portable deskjet i do own the hp deskjet it gives the nicest outputs with only a minor loss of quality for all intensive purposes papers letters resumes i treat my deskjet like a laser printer you do have to look a bit closely to see the blurs in the characters only one grudge the ink that hp gives you does smudge rather quickly in the presence of moisture even though the ink is waterproof however you would have to spend about more for laser quality the cannon bubblejets are nice however they don t seem to have as much support eg drivers for popular programs as the hp ink jets also hp deskjet regular plus c accepts xerox paper i believe that the cut sheet feeder is an option for the cannon bubblejet if you don t mind refilling your printer with cheap ink say fountain pen ink then the hp deskjets are very cheap to maintain i paid for my last bottle of ink and i expect it to last months kimball who doesn t work for hp but just loves his printer very much ps i have a question for you netters i m too afraid to refill with the waterproof inks they sell in art supply houses because i had brought a bottle of waterproof ink and it clogged up my cartridge i wonder what is a good waterproof ink aside from buying refill kits to refill my cartridge
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re cad program for electronics in article apr norfolk vak ed edu fculpepp norfolk vak ed edu fred w culpepper writes i am making a search for a cad program that does a decent job of making schematic drawings the program needs to be in ms dos windows if possible what i want the cad program to do is to draw diagrams by dragging elements onto the screen and in this the elements needed are as diverse as vacuum tubes to ics case with pins it also needs to have provision for adding legends to the components as well as their values in other words i want to produce quality drawings printout would be to either pin dot matrix and or laser printer i would suggest draw for windows by micrografx i have this on my home box its quite impressive and only cost ukl it has a rather nice clip art library facility which you can expand with your own drawings there is no circuit component clip art included but you could add your own quite easily it works with any windows printer driver of course and can also export embedded postscript and pcx files note i am not connected with micrografx in any way paul paul johnson paj gec mrc co uk tel ext these ideas and others like them can be had gec marconi research is not for each from any reputable idealist responsible for my opinions
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help how to constru dean anneser anneser pwa b uucp wrote my yr old son has signed up to do a science report on batteries i was wondering if anyone could provide me with some information as to how to construct a home built battery in my grade school days i remember seei the ice cube tray version but i don t remember what to use as a good electrolyte or what the easily obtainable metals were thank you in advance i remember watching a whole mr wizzard program on this subject when i was a kid the battery constructed on the program which made the biggest impression on me and generated the most power was made using a galvanized bucket for the zinc and a copper toilet tank float the electrolyte was sauerkraut take a lemon stick a copper strip into the lemon stick a galvanized nail in about to inches from the copper strip you should get about volt from it enough to light an led slmr support your medical examiner die strangely the ozone hole bbs a private bulletin board service full service nodes usrobotics k bps gigs files skydive new orleans rime network mail hub usenet newsgroups please route all questions or inquiries to postmaster ozonehole com
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sci.electronics
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food dehydrators does anybody out there have one of those food dehydrators i ve been seeing all over late night tv recently i was wondering if they use forced air hea or both if there s heat involved anybody know what temperature they run at my wife would like one and i m not inclined to pay for a box a fan and a heater seems to me you should be able to throw a dehydrator together for just a few bucks heck the technology is only what years old you can learn how to build a deyhdrator very easily from the book the hungry hiker s guide to good food by gretchen mchugh the heat source is a watt light bulb basically it s a vertical wooden box with ventilation holes in the top and bottom lots of them you want the air to flow the light bulb goes in the bottom and wire cake racks are spaced every starting about above the bulb or at a slightly higher cost in electricity you can do what i do use your oven note i do this in an electric oven some gas ovens may not have a low enough setting put food to be dried on cookie tins or racks in the oven set oven to degrees the lowest setting on my oven if yours goes down to that s probably even better stick a wooden spoon or something across the front corner of the oven and close the door on the spoon so that it stays open about an inch this allows for airflow leave the stuff in the oven for to hours check it often since this dries it much faster than the dehydrator if you are using cookie sheets instead of racks turn the stuff over halfway through if you want more info e mail me since this isn t really the right sub for this stuff gerald belton ozonehole com slmr i still miss my boss but my aim is improving the ozone hole bbs a private bulletin board service full service nodes usrobotics k bps gigs files skydive new orleans rime network mail hub usenet newsgroups please route all questions or inquiries to postmaster ozonehole com
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sci.electronics
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need to find out numb al question is there a certain device out there that i can al use to find out the number to the line al thanks for any response al al al there is a number you can call which will return a synthesized al voice telling you the number of the line unfortunately for the al life of me i can t remember what it is the telephone technicians al use it all the time we used to play around with this in our al dorm rooms since there were multiple phone lines running between al rooms it probably wouldn t help for you to post the number since it appears to be different in each area for what it s worth in the new orleans area the number is easy to remember what slmr ask me anything if i don t know i ll make up something the ozone hole bbs a private bulletin board service full service nodes usrobotics k bps gigs files skydive new orleans rime network mail hub usenet newsgroups please route all questions or inquiries to postmaster ozonehole com
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sci.electronics
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mc sbi mixer mjm hi i was wondering if anyone would be able to help me on twwo related mjm subjects i am currently learning about am fm receivers and recieving mjm circuits i understand a lot of things but a few things i am confused mjm abuot the first is the mixer to mix the rf and local oscillator mjm frequencies to make the if does anyone have any cicruit diagrams as mjm simple as possible for this kind of mixer i have come across a mjm mc sbl mixer chip but i have not been able to find it in any catalogs mjm active etc mjm along the same note are there any simple fm receiver circuits anyone mjm may have stashed away somewhere and they couold let me see mjm p s any really good books on am fm theory along with detailed mjm electrical diagrams would help a lot mjm i have seen a lot of theory books with no circuits and a lot of mjm circuit books with no theory but one without the other does not help digi key has the ne chip which has a local oscillator and mixer on one chip for a great combination of theory with actual circuits the best reference for non engineers is probably the radio amateur s handbook from the arrl most library s have it in the reference section slmr if ignorance is bliss why aren t there more happy folk the ozone hole bbs a private bulletin board service full service nodes usrobotics k bps gigs files skydive new orleans rime network mail hub usenet newsgroups please route all questions or inquiries to postmaster ozonehole com
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sci.electronics
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pink noise what is pink noise and how is it used in sound experiments tony wayne uva schools virginia edu
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7,520 |
sci.electronics
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re how can uf be different from two in series in article c uc k zoo toronto edu henry zoo toronto edu henry spencer writes this may be a safety issue the csa is more paranoid in certain areas than ul and such two caps in series means that you don t have a short if one of them shorts not necessarily true a short in one if near the maximum series voltage drop will overvoltage the other one and short it too more bgb lihan ccwf cc utexas edu the only reason the world hasn t really bruce bostwick dissolved into total chaos is that from the great state of texas murphy s law also applies to murphy
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7,521 |
sci.electronics
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re membrane keypad with custom legend in article apr texhrc uucp pyeatt texaco com larry d pyeatt writes i had a catalog with membrane keypads but i dunno what happened to it and it was so long ago that i forget the name of the company anyway you could make your own legend and slip it behind the bezel really nice and reasonably priced can anyone tell me where to get some more of these critters for some reason the name grayhill springs to mind saw something like that in a grayhill catalog along with options for custom printed overlays and a neat little electroluuminescent backing that would make the whole shebang glow a nice shade of green mighty handy if you re trying to key a door combination in the dark and don t want to turn on the light bgb lihan ccwf cc utexas edu the only reason the world hasn t really bruce bostwick dissolved into total chaos is that from the great state of texas murphy s law also applies to murphy
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7,522 |
sci.electronics
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wanted tcm chips small quantities from payne crl dec com andrew payne message id apr crl dec com organization dec cambridge research lab date tue apr gmt does anyone know if a source for the tcm modem chips as used in the baycom and my pmp modems ideally something that is geared toward hobbyists small quantity mail order etc for years we ve been buying them from a distributor marshall by the hundreds for pmp kits but orders have dropped to the point where we can no longer afford to offer this service and all of the distributors i ve checked have some crazy minimum order or so i d like to find a source for those still interested in building pmp kits any suggestions andrew c payne dec cambridge research lab r b wnet hal hal bbs qwk to usenet gateway four v bis dial ins free usenet mail and newsgroups pcboard am uupcb kmail call or member of eff asp asad mb disk serving ann arbor since
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7,523 |
sci.electronics
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wanted tcm chips small quantities from payne crl dec com andrew payne message id apr crl dec com organization dec cambridge research lab date tue apr gmt does anyone know if a source for the tcm modem chips as used in the baycom and my pmp modems ideally something that is geared toward hobbyists small quantity mail order etc for years we ve been buying them from a distributor marshall by the hundreds for pmp kits but orders have dropped to the point where we can no longer afford to offer this service and all of the distributors i ve checked have some crazy minimum order or so i d like to find a source for those still interested in building pmp kits any suggestions andrew c payne dec cambridge research lab r b wnet hal hal bbs qwk to usenet gateway four v bis dial ins free usenet mail and newsgroups pcboard am uupcb kmail call or member of eff asp asad mb disk serving ann arbor since
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7,524 |
sci.electronics
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part mc sec e i know what the hc e is all about but i m trying to figure out what the sec e is specifically what does the sec stand for dale ulan ve dau ulan ee ualberta ca
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7,525 |
sci.electronics
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re los angeles freeway traffic reports i live in the san francisco bay area and word has it that something similar is on its way here since we apparently don t have the sensor base you folks have they re installing cameras at strategic points along the freeways initial tests are going to be in the santa clara area i m told with the video being piped into a command center they re building somewhere in the east bay i m not sure if frame grabbers or cheap labor will be used to interpret the data but large multi colored status displays will show the various routes using different colors to represent the various average speeds for each stretch of highway an announcer will sit in front of the status wall and will relay continuous verbal traffic status to those who want to receive it they re apparently also looking into licensing a low am frequency to be dedicated to providing continuous audio from this system in the mean time they ll set up large incandescent display boards along the test stretch to provide commuters with data on traffic conditions up ahead my understanding is that the system is subsidized as a pilot program and information from it will be available free of charge perhaps the la system is similarly free or provided at an obviously subsidized rate read cheap we also have the traffic reports that are broadcast on the sap audio channel of television channels and these are verbal reports qualified with a identification tone to tell in vehicle receivers like the auto talk that the information coming next is applicable to a given area in la they re probably using some other tv channels but the concept is the same try setting your stereo tv or vcr to receive the sap audio channel and go station jumping to find out which one is broadcasting this information i believe this program is also subsidized making the in vehicle receivers cheap to purchase and without having to incur monthly fees to use it since the makers of these in vehicle receivers don t have to pay for the broadcast this may not be completely true they likely have no investment in keeping the system up and running when the cal trans stuff hits the airwaves you may have a nifty little tv audio receiver in your car nothing more when this happens perhaps a word to the wise i think we d all be interested in a summary post if you get more info on how the la system is networked and paid for cheers alan acooney netcom com
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sci.electronics
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re answers to many electronics questions bill willis willisw willisw eng clemson edu wrote i have notice a lot of electronics questions by people who are obviously not tuned in to electronics many of them have rather simple answers and many of them require a circuit diagram rather than muck up the network why don t you write to me send a self addressed stamped envelop and i ll answer your questions if i can w l willis p e fern circle clemson sc because the network is quicker easier and free at least to me christopher wolf electrical engineer cmwolf mtu edu remember even if you win the rat race you re still a rat
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re a question about vac outlet wiring dave martindale dave imax imax com wrote they require two separate grounds one ground goes to the ground pin of the outlet and the other ground wire is connected to the outlet s mounting tabs and thus grounds the box and faceplate screw and metal faceplate if any i thought the ground was connected to the metal frame on the socket christopher wolf electrical engineer cmwolf mtu edu remember even if you win the rat race you re still a rat
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re los angeles freeway traffic reports charlie brett cfb fc hp com wrote you were right the second time it is knx believe it or not i also listen to knx in the evenings here in colorado it s kind of fun driving through the country listening to traffic jams on the back to your original question yes there are sensors just past every on ramp and off ramp on the freeways they re the same sensors used at most stoplights now coils in the pavement you might want to give caltrans a call or even ask bill keene knx s traffic reporter i doubt if just anyone can get the information but it would be worth asking just in case you can get it i seem to remember that they sell the information and a computer connection to anyone willing to pay on the subject of the pavement sensors can anyone tell me more about them christopher wolf electrical engineer cmwolf mtu edu remember even if you win the rat race you re still a rat
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7,529 |
sci.electronics
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voltage regulation and current limiting one not so quick question to throw out there for you guys for our class project we need to design and build a power supply to the following specs voltatge adjustable from v current limited at a voltage must stay within of designated value for i from a ac ripple less than mv rms of course we can t just use an adjustable voltage current limiting regulator chip our problem is with the current limiting i e we ve found stuff to do the rest of the parts of the circuit what the supply must do if presented with a load which would draw more than a given the supply voltage is reduce the voltage so that the current will equal one amp thus if we were to short the thing with the ammeter we should read one amp if we measure the current through a ohm resistor at v we should read one amp and the output voltage by necessity must be v the only basic idea we have seen for the current limiter involves a circuit which will pull current off of the base of the output power transistor and therefore reduce the output so does anybody have any ideas we could work from thanks in advance andy collins kc yey acollins uclink berkeley edu ps if anybody wants to flame this as a stupid project i agree fully but i still have to do it its graded
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sci.electronics
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re membrane keypad with custom legend try the folks at dimolex corp la crescenta ca their number is they make membrane keypads that are very flat in layouts from to keys they have standard models tactile models with stainless domes under each key to make a click you can feel as well as backlit models some of them can even be cut with scissors to form a funky shape other than a rectangle many of the models are available in a kit which includes a bezel colored and plain key covers and rub on lettering to make your own layout one piece prices aren t cheap though as they want for one four position pad kit and for a position kit i have no affiliation with dimolex or any company connected with them i have purchased a couple of keypads from them and am pleased with what i got cheers alan acooney netcom com
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re building a uv flashlight in article c r lz n panix com jhawk panix com john hawkinson writes my main question is the bulb where can i get uv bulbs do they need a lot of power etc etc i ve seen them in surplus stores all they are are fluorescent bulbs without the phosphor and a uv transparent bulb special glass i ve also seen incandescent versions that you screw into an ordinary vac socket probably not what you want i m not too concerned with whether it s long wave or short wave but hey if anyone has a cheap source of bulbs i ll take both one other thing a friend of mine mentioned something about near uv light being cheaper to get at than actual uv light does anyone know what he was referring to as far as i know near uv as opposed to far uv is longwave uv near the visible spectrum longwave uv is safer as far as accidental i hope exposure to the eyes as far as fluorescent minerals go the reason a friend has a uv lamp some only respond to only one of short or long uv hope this helps dave thanks much john hawkinson jhawk panix com who i am david malecki who you think i am dramalecki electrical watstar uwaterloo ca
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sci.electronics
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re decoupling caps onboard i ve used on chip capacitors to reduce ground bounce noise on a small systolic array chip that had pf loads on the clock lines design was in micron n well cmos using the mosis scalable design rules here are some thoughts on the bypass capacitors they don t help much with simultaneous output switching there is still a large inductance between the bypass capacitor and the load capacitor on both the signal line and the ground return so you still get ground and power line bounce they do help a lot with on chip loads as i had with the high load on the clock lines the transients you are trying to suppress are really high frequency so forget about large areas of poly thin oxide diff capacitors since the rc time constant is too large what i did is to make a metal metal poly diff sandwich but put a lot of holes in the poly layer allowing frequent diff metal contacts i forget exactly how wide the poly lines were if i were doing this design again i d probably omit the diff altogether and use a solid poly sheet instead using just m m and poly and substrate but that has such a high resistance it can be ignored at these speeds you are probably better off trying to tune your circuit to run with slightly slower edges and lower voltage swings especially for output signalling than spending chip area on capacitors i had spare space on the die since the circuit was too big for a mosis tiny chip and the next size up was twice as big as i needed kevin karplus kevin karplus karplus ce ucsc edu due to budgetary constraints the light at the end of the tunnel is being turned off
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anyone got schadow switches with led name your price cap colours quantity available cheers mike
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sci.electronics
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need to find out number to a phone line try comp dcom i was reading a thread a while back about an number that you could dial worked here it was a sales line for sprint i think telling you that you could have all your customers numbers using there ani then it told you your number should work with any modern switch mycal pgp key on request mycal netacsys com mycal s way of skiing moguls turn turn turn air survive survive survive no risk no rush
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atari processors for all people that are interested in every aspect of the try the zine connection cash to timothy duarte po box n westport ma for sample pgp key on request mycal netacsys com mycal s way of skiing moguls turn turn turn air survive survive survive no risk no rush
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sci.electronics
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re arcade style buttons and joysticks hi there can anyone tell me where it is possible to purchase controls found on most arcade style games many projects i am working on would be greatly augmented if i could implement them thanx in advance try parts express in dayton ohio also they have a complete line of professional arcade buttons joysticks etc the have a number so call and ask them what the number for part express in dayton ohio is i love the free directory assistance dan daniel joseph rubin rubin cis ohio state edu go bengals go bucks
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sci.electronics
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re uart needed really break detect in article jam ameslab gov jam ameslab gov jerry musselman wrote i need to find a uart that will interface to an and do the following k baud data bits stop bits no parity ability to do break detect irq or output pin irq on character received i m using a dallas ds at mhz clone but it won t do break detect i ve looked at the etc any help would be appriciated actually detecting a break is done by watching for a character containing all zero bits with the framing error resulting from its receipt this means that the line stayed in the zero bit state even past the stop bit time slot which basically indicates a break there is no special way to detect break that i have found other than this there s no magic signal generated by uarts etc alan mimms alan apple com apple alan my opinions are generally portable macintosh software group pretty worthless but apple computer they are my own art without engineering is dreaming engineering without art is calculating steven k roberts in computing across america
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re uninterruptible power supply alung megatest com aaron lung writes in article qk inn hp col col hp com cab col hp com chris best writes i m no expert at ups s but you said something that made it sound like you didn t realize something on a typical ups well on ours anyway there is no switchover from ac to dc all the protected equipment is always running from the batteries via an inverter with the usual condition of also having them on charge if the power fails big deal the computers never see it until the batteries start to droop but there s something like car sized batteries in that cabinet so it takes a while if you were gonna run the guts on straight dc instead of an inverter why not do it all the time then there d be no switchover to screw things up and no having to sense the failure fast just keep the dc on charge when the power is on and it ll be there in zero time when you need it actually it s a bit more complicated than that i sounds to me your ups takes in ac rectifies it to dc to charge the batteries and then takes the battery dc and chops it to ac again feeding your equipment this approach is the easiest and cleanest way to switchover from the mains to battery once your power kicks out since as you mentioned nothing will know about what happened down the line another way to do the ups scheme is to use the mains until you lose power and then kick in the battery backup with it s inverter to replace the lost power the problem here is the switchover time and you ve got to resync the ac in no time flat that s a standby unit not a ups otherwise there would be no interuption many standby units are labled as ups s though morgan bullard mb coewl cen uiuc edu or mjbb uxa cso uiuc edu unfortunately most everything is built around the assumption that ac is available so the ups guys have to provide and ac output to be usable ya sorta have to make it work with what there already similar story with our telephone system it was first invented back in the s we re still using the same damn system media as they did back then if i have a phone from back then i can assure you it ll work on today s phone system it costs too much to overhaul everyone to a new system so they make it work with what is out there
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ir detector cards hi people ok heres my problem i keep hearing about these little credit card type of things which detect ir light i believe that you have to charge them up under normal visible light and then if they are exposed to ir light they glow or something like that i think that they are avaliable in the states and even in england but alas i live in australia could someone please inform me if i can get these things over here and if so where and how much also are they really commonly avaliable in the states and if so then how much are they and who sells them maybe if i cant get one here i ll write to one of the companies over seas anyway thanks in advance sab
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re suggestions on audio relays in article c qsbf iek ms uky edu billq ms uky edu billy quinn writes i built a little project using the radio shack vdc relays to switch audio i got pretty bad clicks when the thing switched is there a good relay relay circuit that i can use for switching audio so that there will be no noise of any kind on the audio lines i missed the first part of this thread are you switching line level or speaker level audio if line level there s a single chip x stereo audio switch available that switches two channel inputs into two channel output and also has a mute function all controllable with ttl inputs lm i think if speaker level never mind phil torre ptorre u washington edu
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re arcade style buttons and joysticks can anyone tell me where it is possible to purchase controls found on most arcade style games many projects i am working on would be greatly augmented if i could implement them thanx in advance hap controls just outside chicago sells these andrew macrae actually it s happ and some of their equipment can be found in the parts express catalog they show switches for joysticks for and trackballs for they also have pinball parts good luck frank filipanits jr b s ee music california institute of technology audio consultant m s music engineering university of miami franko alumni caltech edu no officer i don t know how fast i was going
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can radio freq be used to measure distance i m wondering if it s possible to use radio waves to measure the distance between a transmitter s and receiver seems to me that you should be able to measure the signal strength and determine distance this would be for short distances ft and i would need to have accuracy of inches or so how about measuring vertical distance as well any chance or am i getting ridiculous what frequencies would be best for this or does matter sorry if i m mucking up the network with one of those questions best answered by bill willis via us mail and i apologize for not being tuned in to electronics r g carpenter ph d p e sorry only an me
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re need source for old radio shack ste it s made by rohm as is all baxxx parts call and ask if you can get a sample it s only like a part
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re need info on dsp project motorola has a good app note on a band equalizer using a dsp it could be easily ported to an ariel board or even a turtle beach k development system
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re can radio freq be used to measure distance in article c v m c bcstec ca boeing com rgc bcstec ca boeing com robert g carpenter writes i m wondering if it s possible to use radio waves to measure the distance between a transmitter s and receiver yes you could seems to me that you should be able to measure the signal strength and determine distance this would be for short distances ft and i would need to have accuracy of inches or so well letsee whipping out hp sx soon to be gx inches m s nanoseconds resolution hmm that ll be rather difficult the more standard read better method is to use ultrasound generally somewhere around khz sound travels a heck of a lot slower than light radio waves and is therefore much easier to deal with what frequencies would be best for this or does matter it might be easiest to visit a hardware store and look at the numerous sonic estimator type devices that do what you want here many are pretty cheap too in fact for awhile the stanley estimator was selling for something like that s the one i bought joel kolstad
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re beginner s rf klink cbnewsl cb att com steven r klinkner writes can anybody recommend a good application oriented beginner s reference to rf circuits i am pretty good on theory know what different types of modulation mean but don t have a lot of practical experience a book detailing working circuits of different types modulation power frequency what is legal what is not et cetera would be very helpful thanks well you might try the a r r l s license study guides for example my advanced class study guide has lots and lots of good rf and electronics theory in it i would imagine the other books are good too tony anthony s pelliccio kd nr ae yes you read it right the system garlic sbs com man who went from no code thhhppptt to extra in flame retardent sysadmin exactly one year this is a calm sig
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re arcade style buttons and joysticks dnewman lynx dac northeastern edu david f newman writes hi there can anyone tell me where it is possible to purchase controls found on most arcade style games many projects i am working on would be greatly augmented if i could implement them thanx in advance dave dnewman lynx dac northeastern edu contact chris arthur at chris arthur pennies stratus com he restores lots of old video and arcade games and knows where to get parts tony anthony s pelliccio kd nr ae yes you read it right the system garlic sbs com man who went from no code thhhppptt to extra in flame retardent sysadmin exactly one year this is a calm sig
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re long distance ir detection in article wb omc dynamo ecn purdue edu wb omc dynamo ecn purdue edu duane p mantick writes btw i have seen irleds with outputs up to watts honest watts i don t have the book here at work so i can t recall the company name the watter ain t cheap around but if you want some power mamamia that s pretty hot they also have a watt a watt and a watt device in their line and will sell small quan to individuals if you are interested i can find the book at home and get the pertinent info you are probably referring to the products of opto diode corp mitchell road newbury park ca the make some amazing irled s the really high powered devices are arrays of or led s on a to header the chip model puts out watts in response to a amp us pulse at a duty cycle i think these are designed as illuminators for ir vision systems i would also be interested in the application here i work with a dance and technology program and want to build something to track dancers on a foot wide stage from feet away
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re radar detector detectors there is or was a microwave tower next to florida s turnpike and you could watch the cars hit the breaks as they came in sight of it every morning michael a covington associate research scientist artificial intelligence programs mcovingt ai uga edu the university of georgia phone athens georgia u s a amateur radio n tmi
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re fujitsu hdd in article apr aber ac uk cjp aber ac uk christopher john powell writes deletions it appears to use two balanced line connections but what each connection corresponds to i know not one connection is a way idc the other a way idc sounds like it is an smd interface to me not being at work now to actually count pins there are two varients smd and smdc i think only minor differences between them widely used prior to the advent of scsi for large drives or all drives on minis and mainframes no experience on those richard dell
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manual for eprom blower logical devices prompro wanted i have an eprom blower made by logical devices and the model name is prompro but i have lost the manual does anyone have a spare manual that they would like to sell declan hughes hughes ral rpi edu
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re mc sbi mixer mark j musone musone acsu buffalo edu wrote hi i was wondering if anyone would be able to help me on twwo related subjects i am currently learning about am fm receivers and recieving circuits p s any really good books on am fm theory along with detailed electrical diagrams would help a lot i have seen a lot of theory books with no circuits and a lot of circuit books with no theory but one without the other does not help a pretty serious book that still seems readable is communication receivers principes and design by rohde and bucher mark zenier markz ssc wa com markz ssc com
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re radio electronics free information card in article c ulqg i acsu buffalo edu v mb k ubvmsb cc buffalo edu neil b gandler writes how does the radio electronics free information cards work do they just send you some general information about the companies that advertise in their magazine or does it also give you sign you up for a catalog that depends entirely upon the advertiser whose number you circled radio electronics compiles all of the cards then each advertiser gets a computer printout of the names and addresses of all of the readers who circled their number some magazines also provide the data on self adhesive labels and the really big magazines provide the data on computer disk the advertiser decides what to do with the data they get you will notice that the radio electronics information card commonly called a bingo card in the industry includes lines for a company name and a business phone number my guess would be that the big national advertisers make a distinction between hobbiests and professionals as best they can for example if you include motorola as your company and include a business phone and a mail stop tektronics will probably send you a copy of their hard bound catalog and have a sales engineer call you about a week later if you leave it blank odds are they will send you a slick brochure and direct you to a local retail outlet medium and small companies are more likely to send you th e whole catalog and then some companies like digikey or jameco have nothing to mail out accept the catalog a couple of other interesting points about bingo cards free industry magazines like edn and such also log your card to their computer they use the information at least three ways they note that you really do read the magazine and are more likely to continue your subscription or push you through repeated mailings to re subscribe they also compile how many people requested which data for their marketing demographics this way thay can tell a prospective advertiser that of readers requesting data were interested in capacitors and finally some magazines rent lists of readers who request certain information for example tektronics can rent a list of everyone who requested information about test equipment other than tektronic s in the past months the other point in the data the advertiser receives many magazines include how many items you circled on the card if they want the advertiser can attempt to cull out the literature collectors from the serious potential customers can you say qualified sales leads i thought you could what s the best way for a hobbiest to deal with bingo cards never circle more than number on the card if you want more than items use the second card and mail it a couple of weeks later if you are really really serious and you really really want the information call the advertiser and ask this will also cut about days off the the response time virtually everyone takes a voice on the phone more seriously than data on a computer printout to help insure you keep getting a trade magazine that you re not really qualified for send in a bingo card at least every other month and circle two or three numbers include a business name and phone number even if it s your house advertisers almost never call john schuch publisher of the arizona high tech times the arizona electrical journal the arizona hvac news all of which have bingo cards
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re cable tvi interference victor inqmind bison mb ca victor laking writes do you know what frequencies chanels to use and what is usually allocated to those frequencies for broadcast outside of cable is air comm is amateur is business and public service ken thompson n itl ncr corp peripheral products division disk array development n rock road wichita ks ken thompson wichitaks ncr com
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re does someone know what is the news group for ieee in apr usl edu yxy ucs usl edu yu yingbin writes yxy usl edu thanks a lot ieee general and ieee announce are the most frequently used groups
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re laser vs bubblejet here is a different viewpoint fyi the actual horizontal dot placement resoution of an hp deskjet is th inch the electronics and dynamics of the ink cartridge however limit you to generating dots at per inch on almost any paper the ink wicks more than th inch anyway the method of depositing and fusing toner of a laster printer results in much less spread than ink drop technology in practice there is little difference in quality but more care is needed with inkjet because smudges etc can happen it doesn t take much investigation to see that the mechanical and electronic complement of a laser printer is more complex than inexpensive ink jet printers recall also that laser printers offer a much higher throughput ppm for a laser versus about ppm for an ink jet printer a cheap laser printer does not manage that sort of throughput and on top of that how long does the first sheet take to print inkjets are faster than you say and in both cases the computer often has trouble keeping up with the printer i have a and a lot of drivers cannot keep up with the printer a sage said to me do you want one copy or lots of copies one inkjet something else to think about is the cost of consumables over the life of the printer a page yield toner cartridge is about us at discount while hp high capacity page yield cartridges are about us at discount it could be that over the life cycle of the printer that consumables for laser printers are less than ink jet printers it is getting progressively closer between the two technologies laser printers are usually desinged for higher duty cycles in pages per month and longer product replacement cycles paper cost is the same and both can use refills long term the laserprinter will need some expensive replacement parts consumables and on top of that are the amortisation costs which favour the lowest purchase cost printer hp inkjets understand pcl so in many cases a laserjet driver will work if the software package has no inkjet driver there is one wild difference between the two printers a laserprinter is a page printer whilst an inkjet is a line printer this means that a laserprinter can rotate graphic images whilst an inkjet cannot few drivers actually use this facility there is also the matter of downloadable fonts and so on tc e mail tchannon black demon co uk or tchannon cix compulink co uk
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info needed gaucher s disease i have a yr old male friend misdiagnosed as having osteopporosis for two years who recently found out that his illness is the rare gaucher s disease gaucher s disease symptoms include brittle bones he lost inches off his hieght enlarged liver and spleen internal bleeding and fatigue all the time the problem in type is attributed to a genetic mutation where there is a lack of the enzyme glucocerebroside in macrophages so the cells swell up this will eventually cause death enyzme replacement therapy has been successfully developed and approved by the fda in the last few years so that those patients administered with this drug called ceredase report a remarkable improvement in their condition ceredase which is manufactured by biotech biggy company genzyme costs the patient per year gaucher s disease has justifyably been called the most expensive disease in the world need info i have researched gaucher s disease at the library but am relying on netlanders to provide me with any additional information news stories reports people you know with this disease ideas articles about genzyme corp how to get a hold of enough money to buy some programs available to help with costs basically any help you can offer thanks so very much deborah
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re jiggers in article cup portal com mmm cup portal com mark robert thorson writes this wouldn t happen to be the same thing as chiggers would it a truly awful parasitic affliction as i understand it tiny bugs dig deeply into the skin burying themselves yuck they have these things in oklahoma close my mother comes from gainesville tex right across the border they claim to be the chigger capitol of the world and i believe them when i grew up in fort worth it was bad enough but in gainesville in the summer an attack was guaranteed doug mcdonald
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re breech baby info needed in article apr trentu ca xtkmg trentu ca kate gregory writes in article apr cs rochester edu fulk cs rochester edu mark fulk writes another uncommon problem is maternal hemorrhage i don t remember the incidence but it is something like in or births it is hard to see how you could handle it at home and you wouldn t have very much time thing you might consider is that people s risk tradeoffs vary i consider a risk of loss of a loved one to require considerable effort in the avoiding mark you seem to be terrified of the birth process that s ridiculous and unable to believe that women s bodies are actually designed to do it they aren t designed they evolved and much as it discomforts us in humans a trouble free birth process was sacrificed to increased brain and cranial size wild animals have a much easier time with birth than humans do domestic horses and cows typically have a worse time to give you an idea my family tree is complicated because a few of my pioneer great great grandfathers had several wives and we never could figure out which wife had each child one might ask why this happened my great great grandfathers were by the time they reached their forties quite prosperous farmers nonetheless they lost several wives each to the rigors of childbirth the graveyards in spencer indiana and boswell north dakota contain quite a few gravestones like ida wf of jacob liptrap and baby may you wanted to section all women carrying breech in case one in a hundred or a thousand breech babies get hung up in second stage more like one in ten and the consequences can be devastating i have direct experience of more than a dozen victims of a fouled up breech birth and now you want all babies born in hospital based on a guess of how likely maternal hemorrhage is and a false belief that it is fatal it isn t always fatal but it is often fatal when it happens out of reach of adequate help more often it permanently damages one s health clearly women s bodies evolved to give birth i am no believer in divine design however evolution did not favor trouble free births for humans you have your kids where you want you encourage your wife to get six inch holes cut through her stomach muscles expose herself to anesthesia and infection and whatever other just in case measures you think are necessary my aren t we wroth i haven t read a more outrageous straw man attack in months i can practically see your mouth foam we re statistically sophisticated enough to balance the risks although i can t produce exact statistics years after the last time we looked them up rest assured that we balanced c section risks against other risks i wouldn t encourage my wife to have a caesarean unless it was clearly indicated on the other hand i am opposed on obvious grounds to waiting until an emergency to give in and bear this in mind my wife took the lead in all of these decisions we talked things over and i did a lot of the leg work but the main decisions were really hers but i for one am bothered by your continued suggestions especially to the misc kidders pregnant for the first time that birth is dangerous even fatal and that all these unpleasant things are far better than the risks you run just doing it naturally i don t know of very many home birth advocates even that think that a first time mother should have her baby at home i m no luddite i ve had a section i m planning a hospital birth this time but for heaven s sake not everyone needs that but people should bother to find out the relative risks my wife was unwilling to take any significant risks in order to have nice surroundings in view of the intensity of the birth experience i doubt surroundings have much importance anyway somehow the values you re advocating seem all lopsided to me taking risks even if fairly small of serious permanent harm in order to preserve something that is after all an esthetic consideration mark a fulk university of rochester computer science department fulk cs rochester edu
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analgesics with diuretics i sometimes see otc preparations for muscle aches back aches that combine aspirin with a diuretic the idea seems to be to reduce inflammation by getting rid of fluid does this actually work thanks larry c
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re lactose intolerance in article ng husc harvard edu ng husc harvard edu ho leung ng wrote when i was a kid in primary school i used to drink tons of milk without any problems however nowadays i can hardly drink any at all without experiencing some discomfort what could be responsible for the change ho leung ng ng husc harvard edu you became older and your intestine normalized to the weaned state that is lactose tolerance is an unusual state for adults of most mammals except for h sapiens of northern european origin as a h sapiens of asian descent assumption based on name the loss of lactase is normal for you steve holland gila uabdpo dpo uab edu
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smoker s lungs how long does it take a smoker s lungs to clear of the tar after quitting does your chances of getting lung cancer decrease quickly or does it take a considerable amount of time for that to happen
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re blood cholesterol gabe mirkin s advice in article pka uinnnqa mojo eng umd edu georgec eng umd edu george b clark writes forget about total cholesterol when assessing health risk factors instead use a relationship between ldl and hdl cholesterol if your ldl is you need an hdl of at least gee what do i do my ldl is only and my hdl is only i must be risking something but is it the same risk as those with very high ldl if your triglycerides are above and your hdl is below the drug of choice is gemfibrozil lopid taken as a mg tablet thirty minutes before your morning and evening meals what about exercise and a low fat diet what are the long term effects of this drug doug bank private systems division dougb ecs comm mot com motorola communications sector dougb nwu edu schaumburg illinois dougb casbah acns nwu edu
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re sex problem ls albnyvms bitnet larry silverberg writes i have question that i hope is taken seriously despite the subject content problem my long time girlfriend lately has not been initiating any sexual activity for the last four months things have changed dramatically to make this shorter summary nothing that i can think of has changed she suggested we go to a sex counselor but i really don t want to just yet any suggestions would be appreciated if you think you can help me please contact me by e mail for further info please serious replies only thanks larry larry the subject content is serious as is the question on one hand you state that things have changed dramatically but at the same time nothing you can think of has changed your girlfriend seems to want to see a counselor but you don t i d recommend that you examine your hesitation to see a counselor it s a very good environment to examine issues the fact of the matter is your girlfriend has a different perception than you the two of you need to address the issue in order to resolve it please consider going to a counselor with your girlfriend what could it possibly hurt cliff the paramedic
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re prednisone what are the significant long term side effects i have been taking prednisone mg twice a day for a while to control ulcerative colitis it seems like if i reduce the dosage the problem becomes worse at this point i see myself taking prednisone for a long long time perhaps for ever i was wondering about long term major side effects things like potential birth defects arthritis etc i have been putting on weight my face looks puffed and round experience sudden mood swings as i understand these are all short term i second what spenser aden said in reply additionally it is hard to say what type of response you ar e having to prednisone since you did not say how long you have been on it patients are generally kept on steroids for months before thinking about tapering alternatives to daily dosing are every other day dosing in your case mg every other day would be a start another option if it is not possible to get you off prednisone is to start azathioprine like spenser said you should generally be on another drug in addition to your prednisone like asulfidine a lot of the specifics about options though depends on severity location and duration of disease as well as histology so take advice off the net for what it is worth i treat patients with uc and crohn s an educated patient is a good patient but let your doctor know where the advice came from so things can be put in context you should also be a member of the crohn s and colitis foundation of america office info hotline best of luck to you steve holland gila uabdpo dpo uab edu
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re mental illness reply to dabbott augean eleceng adelaide edu au derek abbott are there any case histories of severe mental illness cases remarkably recovering after a tragic accident or trauma eg through nobody s fault being trapped in a fire and losing your legs say i know of a patient who was severely and chronically depressed and tried to kill himself with a bullet to the temple he essentially gave himself a prefrontal lobotomy curing the depression david nye nyeda cnsvax uwec edu midelfort clinic eau claire wi this is patently absurd but whoever wishes to become a philosopher must learn not to be frightened by absurdities bertrand russell
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re can t breathe reply to ron roth rose com ron roth while you re right that the s vertebrae are attached to each other the sacrum to my knowledge can be adjusted either directly or by applying pressure on the pubic bone ron you re an endless source of misinformation there are no sacral vertebrae there is a bone called the sacrum at the end of the spine it is a single solid bone except in a few patients who have a lumbarized s as a normal variant how do you adjust a solid bone break it no don t tell me i don t want to know david nye nyeda cnsvax uwec edu midelfort clinic eau claire wi this is patently absurd but whoever wishes to become a philosopher must learn not to be frightened by absurdities bertrand russell
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re lactose intolerance in article ng husc harvard edu ng husc harvard edu ho leung ng writes when i was a kid in primary school i used to drink tons of milk without any problems however nowadays i can hardly drink any at all without experiencing some discomfort what could be responsible for the change ho leung ng ng husc harvard edu
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re lactose intolerance in article apr immunex com rousseaua immunex com writes in article ng husc harvard edu ng husc harvard edu ho leung ng writes when i was a kid in primary school i used to drink tons of milk without any problems however nowadays i can hardly drink any at all without experiencing some discomfort what could be responsible for the change ho leung ng ng husc harvard edu oops my original message died i ll try again i always understood perhaps wrongly that the bacteria in our digestive tracts help us break down the components of milk perhaps the normal flora of the intestine changes as one passes from childhood is there a pathologist or microbiologist in the house anne marie rousseau e mail rousseaua immunex com please note that these opinions are mine and only mine
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re smoker s lungs in article apr kuhub cc ukans edu bennett kuhub cc ukans edu writes how long does it take a smoker s lungs to clear of the tar after quitting does your chances of getting lung cancer decrease quickly or does it take a considerable amount of time for that to happen the answer to your first question is rather difficult to answer without doing a lot of autopsies the second question is something that s been known for some time it appears that within about years of quitting smoking a person s risk for developing lung cancer drops to that of the person who never smoked assuming you do not get lung cancer in the interim the risk to someone who smoked the equivalent of a pack per day for years is around times as high as a non smoker still rather low overall but significant personally i d be more concerned about heart disease secondary to smoking it s much more common and even a small increase in risk is significant there kenneth gilbert university of pittsburgh general internal medicine dammit not a programmer
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re can t breathe david nye nyeda cnsvax uwec edu wrote reply to ron roth rose com ron roth while you re right that the s vertebrae are attached to each other the sacrum to my knowledge can be adjusted either directly or by applying pressure on the pubic bone ron you re an endless source of misinformation there are no sacral vertebrae there is a bone called the sacrum at the end of the spine it is a single solid bone except in a few patients who have a lumbarized s as a normal variant how do you adjust a solid bone break it no don t tell me i don t want to know oh come now surely you know he only meant to measure the flow of electromagnetic energy about the sacrum and then adjust these flows with a crystal of chromium applied to the right great toe don t you know anything kenneth gilbert university of pittsburgh general internal medicine dammit not a programmer
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re anti viral herbs kxgst pitt edu kenneth gilbert writes unfortunately it was rather poorly researched and would not be available today if it were just invented keep in mind however that those were the days when a bottle of coca cola really did contain coca extract and a certain amount of active cocaine times have changed and our attitudes need to change with them well yes that was a part of my point aspirin has its problems but in some situations it is useful ditto stuff like licorice root taking anything as a drug for theraputic purposes implicitly carries the idea of taking a dose where the benefits are not exceeded by any unwanted additional effects taking any drug when the potential ill effects are not known is a risk assumed by the parties involved and it may be that in a given situation the risk is worthwhile like prozac for instance prozac has been shown to be theraputic in some cases where the tri cyclics fail but prozac hasn t been in use that long and it really isn t clear what if any effects it may have when taken over long periods of time even though it has been tested by present day standards should prozac be taken off the market because long term effects if any are not known imho i d say no euclid kenneth gilbert university of pittsburgh general internal medicine pittsburgh pa kxgst pitt edu dammit not a programmer kenneth gilbert university of pittsburgh general internal medicine pittsburgh pa kxgst pitt edu dammit not a programmer euclid k standard disclaimers apply it is a bit ironic that we need the wave model of light to understand the propagation of light only through that part of the system where it leaves no trace hudson nelson university physics
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ringing ears a friend of mine has a trouble with her ears ringing the ringing is so loud that she has great difficulty sleeping at night she says that she hasn t had a normal night s sleep in about months she looks like it too this is making her depressed so her doctor has put her on anti depressants the ringing started rather suddenly about months ago she is quickly losing sleep social life and sanity over this does anyone know of any treatments for this any experience coping mechanisms any opinions on the anti depressant drugs j f
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re twitching eyelid i m surprised nobody mentioned that twitching of the eyelid can be a symptom of an infection especially if it also itches or stings it happened to me and antibiotic eyedrops cleared it up nicely michael a covington internet mcovingt ai uga edu artificial intelligence programs phone the university of georgia fax athens georgia u s a amateur radio n tmi
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re fibromyalgia in article apr edt smoke cs toronto edu craig cs toronto edu craig macdonald writes it may be extremely common something like of the population it is treatable with tricyclic antidepressant type drugs elavil pamelor why is it treated with antidepressants is it considered a psychogenic condition no that these drugs happen to be useful as antidepressants is neither here nor there steve dyer dyer ursa major spdcc com aka ima harvard rayssd linus m c spdcc dyer
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re analgesics with diuretics in article ofk lve wb avukto andrew cmu edu lawrence curcio lc b andrew cmu edu writes i sometimes see otc preparations for muscle aches back aches that combine aspirin with a diuretic you certainly do not see otc preparations advertised as such the only such ridiculous concoctions are nostrums for premenstrual syndrome ostensibly to treat headache and bloating simultaneously they re worthless the idea seems to be to reduce inflammation by getting rid of fluid does this actually work that s not the idea and no they don t work steve dyer dyer ursa major spdcc com aka ima harvard rayssd linus m c spdcc dyer
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re ringing ears in article ncrwat waterloo ncr com jfare iss waterloo ncr com jim fare writes a friend of mine has a trouble with her ears ringing the ringing is so loud that she has great difficulty sleeping at night she says that she hasn t had a normal night s sleep in about months she looks like it too this is making her depressed so her doctor has put her on anti depressants sometimes i have a problem with doctor s prescribing medicine like this i of course don t know the exact situation and anti depressants may work but it isn t helping the ringing at all is it the ringing started rather suddenly about months ago she is quickly losing sleep social life and sanity over this mine started about three years back turns out i have tinnitus bilateral translation ringing in both ears basically if this is what it is she ll probably get used to it it would keep me up and drive me nuts too but nowadays i have to plug both my ears with my fingers to check to see if they are ringing usually they are but you get so used to it it just gets tuned out yes this is what i ve read about it not just from my own personal experience does anyone know of any treatments for this any experience coping mechanisms any opinions on the anti depressant drugs millions have it according to my physician you just learn to cope with it like i mentioned earlier by ignoring it it eventually becomes unconscious the doc also said it could be caused by diet ie too much caffeine and stress but i haven t changed my lifestyle much and it just comes and goes it is always there somewhat but now i rarely notice it when it really kicks in also it doesn t necessarily mean there is any hearing loss either caused by it or causing it i had an ent ear nose throat exam and passed in fact my hearing is quite good considering i don t take as good of care of my hearing as i should her reaction is normal if it is tinnitus chances are good she ll begin to not even notice it this info is taken mostly from a few experts my own experience and some readings sorry it was a few years back and don t have any specifics handy jt
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emphysema question a friend of mine is going in later this week for tests to see if has emphysema his lung capacity has decreased over time his father died of the disease he works in woodworking i believe he has a very occasional cigarette perhaps one cigarette a day or even less he tells me this i ve never seen him light up he has some pretty healthy life style habits good diet exercise meditation retreats therapy etc anyhow he is very concerned with this check up i know really nothing about the disease i believe it interferes with the lining of the lung being able to exchange oxygen is a diagnosis of emphysema a death sentence if he were to give up smoking entirely would that better his chances for recovery what are some modern therapies used in people with this disease i would appreciate any information thanks amigan cup portal com
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re oily skin problem in article apr vaxc stevens tech edu u hwong vaxc stevens tech edu writes i have a very oily skin my problem is when i wash my face it becomes oily in half an hour especially in the nose region is this an illness how can i prevent it from occuring in such short time is there a cleanser out there that will do a better job that is after cleaning my face won t become oily in such a short time i don t think that s a problem my face is quite oily too i had a moderate acne problem for many years i then found that if i vigorously scrub my face with a nail brush and soap irish spring twice a day the acne was not a problem i can still leave a pretty health nose print on a mirror after min don t ask but acne is not a real problem anymore j f
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re migraines and scans dn from nyeda cnsvax uwec edu david nye dn a neurology dn consultation is cheaper than a scan and also better because a neurologist can make a differential diagnosis between migraine tension type headache cluster benign intracranial hypertension chronic paroxysmal hemicrania and other headache syndromes that all appear normal on a scan a neurologist can also recommend a course of treatment that is appropriate to the diagnosis dn also since many people are convinced they have brain tumors or other dn serious pathology it may be cheaper to just get a ct scan then have dn them come into the er every few weeks dn and easier than taking the time to reassure the patient right dn personally i don t think this can ever be justified sigh it may never be justifiable but i sometimes do it even after i try to show thoroughness with a detailed history neurologic examination and discussion with the patient about my diagnosis salted with lots of reassurance patients still ask why can t you order a scan so we can be absolutely sure aunt millie often gets into the conversation as in they ignored aunt millie s headaches for years and then she died of a brain tumor aneurysm or whatever if you can get away without ever ordering imaging for a patient with an obviously benign headache syndrome i d like to hear what your magic is every once in a while i am able to bypass imaging by getting an eeg mind you i don t think eeg is terribly sensitive for brain tumor but the patient feels like something is being done as if the hours i spent talking with and examining the patient were nothing the eeg has no ionizing radiation it s much cheaper than ct or mri and the eeg brings in some money to my department slmr e mail jim zisfein factory com jim zisfein
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re migraine and exercise jl from jlecher pbs org jl i would not classify a mild headache that was continuous for weeks jl as migraine even if the other typical features were there e g jl unilateral nausea and vomiting photophobia migraines are by jl common agreement episodic rather than constant jl jl well i m glad that you aren t my doctor then or i d still be suffering jl remember i was tested for any other cause and there was nothing i m jl otherwise very healthy jl the nagging pain has all of the qualifications it s on one side and jl frequently included my entire right side right arm right leg right eye jl even the right side of my tongue hurt or tingled noise hurt light hurt jl thinking hurt when it got bad i would lose my ability to read the differential diagnosis between migraine and non migranous pain is not always important because some therapies are effective in both e g tricyclic antidepressants such as amitriptyline non steroidal anti inflammatory drugs such as ibuprofen other therapies may be more specific beta blockers such as propranolol work better in migraine than tension type headache the most important thing from your perspective is that you got relief also please understand that a diagnosis other than migraine does not necessarily mean psychogenic i suspect that organic factors play as large a role in tension type headache as in migraine slmr e mail jim zisfein factory com jim zisfein
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what about sci med chemistry there is this newsgroup sci med physics and there has been quite a lot discussion in this group about many chemical items e g prolactin cholesterol tsh etc should there also be a newsgroup sci med chemistry antero julkunen dept clinical chemistry university of kuopio finland e mail julkunen messi uku fi phone fax
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mystery illness with eye problems a friend has the following symptoms which have occurred periodically every few months for the last years an episode begins with extreme tiredness followed by traveling joint pains and stiffness affecting mostly the elbows knees and hips generalized muscle pains tinnitus and a feeling of pressure in her ears severe sweating occuring both at night and during the day hemorrhaging in both eyes her opthamologist calls it peripheral retinal hemorhages and says it looks similar to diabetic retinopathy she isn t diabetic they checked distorted color vision and distorted vision in general telephone poles do not appear to be straight loss of peripheral vision many tests have been run and all are normal except for something called unidentified bright objects found on a mri of her brain the only thing that seems to alleviate one of these episodes is prednisone at times she had been on mg per day whenever she gets down to mg the symptoms become acute again she is quite concerned because the retinal hemorrhages are becoming worse with each episode and her vision is suffering none of the docs she has seen have any idea what this condition is or what can be done to stop it any suggestions or advice would be greatly appreciated thanks in advance kathy turner
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re my new diet it works great in article apr inmet camb inmet com mazur bluefin camb inmet com beth mazur writes in apr omen uucp caf omen uucp chuck forsberg wa kgx writes gordon your experience is valid for many but not all the fact that you know a few people who have been overweight and are now stable at a lower normal or just less weight does not contradict the observation that only per cent can maintain ideal weight with current technology actually the observation is that only of those who seek help from your so called diet evangelists can maintain their weight i happen to agree with keith lynch that there are many people who can and do lose weight on their own and who are not reflected in the dismal failure rate that is often quoted wasn t there a study where a researcher asked a more general population perhaps some part of a university community about weight loss and he she found that a much higher percentage had lost and maintained in fact adiposity mentions a similar study search for life events in any recent version of adiposity the problem with anecdotal reports about individuals who have lost weight and kept it off is that we don t know what caused the weight gain in the first place this is critical because someone who gains weight because of something temporary drug effect life event etc may appear successful at dieting when the weight loss was really the result of reversing the temporary condition that caused the weight gain chuck forsberg wa kgx tektronix reed omen caf author of ymodem zmodem professional yam zcomm and dsz omen technology inc the high reliability software v nw sauvie is rd portland or
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re can t breathe getting back to the original question in this thread i experienced breathing difficulties a few years ago similar to those described in my case it turned out that i was developing type i diabetes although i never sought direct confirmation of this from my doctor i think that the breathing problem was associated with the presence of ketones due to the diabetes i think that ketosis can occur in lesser degree if one is restricting their food intake drastically i don t know if this relevant in this case but you might ask your daughter if she has been eating properly steve kirchoefer code kirchoefer estd nrl navy mil naval research laboratory microwave technology branch washington dc electronics sci and tech division
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re jiggers in article ppae bt bigboote wpi edu susan wpi wpi edu susan writes a friend of mine has a very severe cause of jiggers for over a year now they cause him a lot of pain i recently read i don t know where about a possible cure for jiggers does anyone have any information on this i can t remember the name of the treatment or where i read it i ll probably get flamed for this but when i was a kid we would go to my uncles cabin on middle bass island on lake erie we always came home with a nasty case of jiggers large red bumps where the buggers had burrowed into the skin my mother would paint the bumps with clear finger nail polish this was repeated daily for about a week or so the application of the polish is supposed to suffocate them as it seals of the skin all i can say is it worked for us one word of caution though putting finger nail polish on a jigger bite stings like hell if i do get flamed for this just put jam in my pockets and call me toast kentcomm jperkski aldhfn akron oh us and kentcomm jperkski legend akron oh us
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teenage acne my y o son has the usual teenage spotty chin and greasy nose i bought him clearasil face wash and ointment i think that is probably enough along with the usual good diet however he is on at me to get some product called dalacin t which used to be a doctor s prescription only treatment but is not available over the chemist s counter i have asked a couple of pharmacists who say either his acne is not severe enough for dalacin t or that clearasil is ok i had the odd spots as a teenager nothing serious his father was the same so i don t figure his acne is going to escalate into something disfiguring but i know kids are senstitive about their appearance i am wary because a neighbour s son had this wierd malady that was eventually put down to an overdose of vitamin a from acne treatment i want to help but with appropriate treatment my son also has some scaliness around the hairline on his scalp sort of teenage cradle cap any pointers advice on this we have tried a couple of anti dandruff shampoos and some of these are inclined to make the condition worse not better shall i bury the kid till he s the floggings will continue until morale improves pchurch swell actrix gen nz pat churchill wellington new zealand
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re sex problem larry silverberg ls albnyvms bitnet wrote hello out there she suggested we go to a sex counselor but i really don t want to just yet interesting does she know you have placed this info request on the net for the world to see if not how do you think she would react if she found out why would you accept the advice of unknown entities rather than a counselor any suggestions would be appreciated see the counselor well you asked
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re oily skin problem in article apr vaxc stevens tech edu u hwong vaxc stevens tech edu writes hi there i have a very oily skin my problem is when i wash my face it becomes oily in half an hour especially in the nose region is this an illness how can i prevent it from occuring in such short time is there a cleanser out there that will do a better job that is after cleaning my face won t become oily in such a short time thank you for any suggestion if this is a disease everyone should have it my skin has always been oily i used to say if i were hot enough you could fry an egg on my oily face i am now yrs old and my skin looks younger i m told than some people s skin at it s still oily i have only a very few tiny wrinkles thank your lucky stars for that skin
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contraceptive pill a very simple question it seems to me that the contraceptive pill just prevents the ovule to nest in the vagina and forces it to fall every month but it does not prevent the fertilzation of the ovule is it true if yes is there a risk of extra uterine pregnancy that is the development of the ovule inside the fallopian tube j cherbonnier jec zurich ibm com
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brain tumor treatment thanks there were a few people who responded to my request for info on treatment for astrocytomas through email whom i couldn t thank directly because of mail bouncing probs sean debra and sharon so i thought i d publicly thank everyone thanks i m sure glad i accidentally hit rn instead of rm when i was trying to delete a file last september hmmm news what s this brian
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re can t breathe update thanks to all those who responded to my original post on this question the final diagnosis was stress i did not take her for a chiropractic adjustment rachel receives all her medical care at keller army hospital since she is a military dependant and the army does not yet provide chiropractic adjustments as part of its regular health care i am hoping that the arrival of spring break and college acceptance letters will help unfortunately she was wait listed at the college she most dearly wanted to attend so it seems as though that stressor may just continue for a while meanwhile she is going on a camping trip with her religious youth group for spring break which seems like a good stress reliever to me thanks again for everybody s help advice suggestions ideas ruth ginzberg rginzberg eagle wesleyan edu philosophy department wesleyan university usa
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re what about sci med chemistry in julkunen messi uku fi julkunen messi uku fi antero julkunen writes there is this newsgroup sci med physics and there has been quite a lot discussion in this group about many chemical items e g prolactin cholesterol tsh etc should there also be a newsgroup sci med chemistry it s got potential instead of chemistry how about splitting the classification into biochemistry which are probably the topics you re thinking of and pharmaceutical which otherwise might end up in bio chemistry this is separate from the issue of whether there is sufficient potential news volume to support either or both groups i ll add em to my medical health newsgroup wish list which i m looking forward to posting and discussing but not for another days or so pete
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re inner ear problems from too much flying on apr gmt vida mdavcr mda ca vida morkunas said vida can one develop inner ear problems from too much flying i hear vida that pilots and steward esses have a limit as to the maximum vida number of flying hours what are these limits what are the vida main problems associated with too many long haul over hours vida trips the crew rest requirements are to prevent undue fatigue the cockpit crew pilot limits are somewhat more stringent than the cabin crew limits for this reason crew rest requirements address amount of time on duty plus rest time a tired crew is an accident prone crew the only limits i know of for inner ear problems are in military aircraft which are frequently unpressurized or less reliably pressurized not being able to clear the ears renders aircrew members dnif duties not involving flying or grounded until the ears clear flying can accentuate problems if ears don t clear if you don t have big pressure changes you may not know that you ve got a problem but if you zip up to or ft the usual cabin altitude in an airliner and then back down to sea level you may discover a problem ears don t clear readily because of allergies colds infections and anatomical problems the last won t change the first three can medication decongestants or antihistimines usually can help chewing gum sucking hard candy or a bottle for babies yawning these will help all four causes mary shafer dod kotfr nasa dryden flight research facility edwards ca shafer rigel dfrf nasa gov of course i don t speak for nasa a mig at your six is better than no mig at all unknown us fighter pilot
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re contraceptive pill jec watson ibm com wrote a very simple question it seems to me that the contraceptive pill just prevents the ovule to nest in the vagina and forces it to fall every month but it does not prevent the fertilzation of the ovule is it true if yes is there a risk of extra uterine pregnancy that is the development of the ovule inside the fallopian tube actually that is not how the pill works but it is how the iud works the oral contraceptive pill actually prevents ovulation from occuring by providing negatve feedback to the pituitary gland and thus preventing the lh surge that normally occurs at the time of ovulation with the iud what happens is that fertilization may occur but the device prevents implantation within the wall of the uterus not the vagina kenneth gilbert university of pittsburgh general internal medicine dammit not a programmer
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lupus i have a friend who has just been diagnosed with lupus and i know nothing about this disease the only thing i do know is that this is some sort of skin disease and my friend shows no skin rashes in fact they used a blood test to determine what had been wrong with an on going sacro illiac joint problem i am finding a hard time finding information on this disease could anyone please enlighten me as to the particulars of this disease please feel free to e mail me at bytor cruzio santa cruz ca us thanks in advance
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is an oral form of imitrex sumatriptan available in ca sumatriptan imitrex just became available in the us in a subcutaneous injectable form is there an oral form available in ca a friend yes really not me has severe migranes about times per week we live right by the ca border and he has gotten drugs for gerd prescribed by a us physician and filled in a ca pharmacy but not yet fda approved in the us what would be the cost of the oral form in ca also if anyone would have that info thanks
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re twitching eye i had this one time i attributed it to a lack of sleep since it disappeared after a few nights of good zzz s
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inner ear problems from too much flying can one develop inner ear problems from too much flying i hear that pilots and steward esses have a limit as to the maximum number of flying hours what are these limits what are the main problems associated with too many long haul over hours trips frequent flyer
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