Blog de Luis Mochán |
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Sun, 24 Jan 2010
DOI
Cargado a las 19:56 en /mochan/varios / doi20100124, | Etiquetas: doi, firefox, network, plugins | liga permanente
Blog sore Charlatanería y Pseudociencia
Cargado a las 18:42 en /mochan/varios / charlatanes20100124, | Etiquetas: charlatanería, ciencia, pseudociencia | liga permanente Thu, 21 Jan 2010
Casimir force between real materials
Cargado a las 14:17 en /mochan/varios / casimir20100121, | Etiquetas: Casimir, electrodynamics, fluctuations, quantum mechanics, vacuum | liga permanente Tue, 19 Jan 2010
Seismic Monitor
Cargado a las 13:12 en /mochan/varios / seismic20100119, | Etiquetas: earthquakes, geology | liga permanente
Chistes
Cargado a las 10:57 en /mochan/varios / chistes20100119, | Etiquetas: chistes, humor | liga permanente Mon, 18 Jan 2010
Música del Norte de la India
Cargado a las 18:39 en /mochan/varios / india20100118, | Etiquetas: música | liga permanente Sun, 17 Jan 2010
Cambio de presidencia en el Campus Morelos de la UNAM
Cargado a las 23:10 en /mochan/varios / campus20100117, | Etiquetas: campus morelos, unam | liga permanente
Another reason not to use Microsoft
Cargado a las 22:13 en /mochan/varios / ie20100117, | Etiquetas: internet explorer, microsoft, network | liga permanente Reading about kyphoplasty and the evidence in favor or against it, I read the terms evidence based medicine. Its existence implies that most of the medical treatments in use are not evidence based, i.e., based on statistical analysis of many cases with appropriate controls, double blind tests, etc. In the case of kyphoplasty and vertebroplasty, after 25 years of use, there are only two double blind studies with about 130 patients with negative results. The results have been contested but the criticisms, although reasonable (there was a pre-selection of cases, all interventions were performed by the same surgeon, the amount of cement was inadequate) have not reached yet refereed medical journals. (My mother is having kyphoplasty next week). Most medical doctors draw upon their (limited) personal experience and reported clinical cases, they are not trained statisticians and, in any case, they don't have access to massive data banks to perform data analysis. Thus, I suggest that, if it doesn't exist yet, a single database should be set up to attempt to collect information from all cases attended by all physicians world-wide, so that a data mining program might find enough evidence about a given treatment in given circumstances that conclusions can be drawn with some certainty. It should be simple to use, so that physicians are encouraged to use it. Maybe it can offer to be a substitute to paper files, so that information about given individuals may be obtained using the appropriate passwords, replacing in-office files and motivating physicians to use it. Maybe it should also allow patients to fill their own cases and to retrieve them when required, making their clinical history available to the doctor of their choice. Anybody else should then be able to obtain and analyze information that doesn't compromises the anonymity of doctors and patients.
Cargado a las 13:23 en /mochan/varios / evidence20100117, | Etiquetas: medicine, science | liga permanente Sat, 16 Jan 2010
Sustainable Energy
Cargado a las 22:25 en /mochan/varios / energy20100116, | Etiquetas: ecology, energy | liga permanente
La forma más ecológica de viajar
Cargado a las 22:18 en /mochan/varios / aventones20100116, | Etiquetas: ecología, eficiencia, transporte | liga permanente Fri, 15 Jan 2010
Laicismo y la AMC
Cargado a las 18:43 en /mochan/varios / laicismo20100115, | Etiquetas: aborto, AMC, ciencia, laicismo | liga permanente Thu, 14 Jan 2010
Reunión UNAM-UAEM
Cargado a las 15:50 en /mochan/varios / uaem20100114, | Etiquetas: uaem, unam, universidad | liga permanente Wed, 13 Jan 2010
Taller de Ciencia para Jóvenes
Cargado a las 15:09 en /mochan/varios / taller20100113, | Etiquetas: bachillerato, ciencia, educación | liga permanente Tue, 12 Jan 2010
Productividad en las Universidades de América Latina
Cargado a las 09:28 en /mochan/varios / orlandoAlbornoz20100111, | Etiquetas: América Latina, ciencia, productividad, universidad | liga permanente
El Burro que Metió la Pata
Cargado a las 00:00 en /mochan/varios / mane20100111, | | liga permanente Mon, 11 Jan 2010I found it strange that some Java script made more than 1000 accesses to my web site this afternoon. The address was 187.146.179.97 and the output from whois is the following: % Joint Whois - whois.lacnic.net % This server accepts single ASN, IPv4 or IPv6 queries % LACNIC resource: whois.lacnic.net % Copyright LACNIC lacnic.net % The data below is provided for information purposes % and to assist persons in obtaining information about or % related to AS and IP numbers registrations % By submitting a whois query, you agree to use this data % only for lawful purposes. % 2010-01-12 02:18:30 (BRST -02:00) inetnum: 187.144/12 status: reallocated owner: Uninet S.A. de C.V. ownerid: MX-USCV4-LACNIC responsible: Gesti�n de cambios y configuraciones address: Periferico Sur, 3190, address: 01900 - Ciudad de M�xico - DF country: MX phone: +52 55 56244400 [] owner-c: DCA tech-c: DCA abuse-c: DCA inetrev: 187.146/16 nserver: NSMEX2.UNINET.NET.MX nsstat: 20100110 AA nslastaa: 20100110 nserver: NSMTY2.UNINET.NET.MX nsstat: 20100110 AA nslastaa: 20100110 nserver: NSGDL2.UNINET.NET.MX nsstat: 20100110 AA nslastaa: 20100110 created: 20071206 changed: 20071206 inetnum-up: 187.128/11 nic-hdl: DCA person: GESTION DE CAMBIOS e-mail: gccips@REDUNO.COM.MX address: PERIFERICO SUR, 3190, ALVARO OBREG address: 01900 - MEXICO DF - DF country: MX phone: +52 5 556244400 [] created: 20021210 changed: 20060704 % whois.lacnic.net accepts only direct match queries. % Types of queries are: POCs, ownerid, CIDR blocks, IP % and AS numbers.
Cargado a las 22:18 en /mochan/varios / sospecha20100111, | Etiquetas: network | liga permanente Sun, 10 Jan 2010
Las pasión por pasar las hojas
Cargado a las 11:01 en /mochan/varios / pageturning20100110, | Etiquetas: tecnología | liga permanente Sat, 09 Jan 2010
Pensamiento de George Carlin
Cargado a las 20:11 en /mochan/varios / carlin20100109, | | liga permanente Fri, 08 Jan 2010
Zumbidos y Mosquitos
Cargado a las 15:08 en /mochan/varios / zumbidos20100108, | Etiquetas: análisis dimensional, biofísica, divulgación, redacción | liga permanente Wed, 06 Jan 2010
La AMC frente a la Ley Anti-aborto
Cargado a las 10:27 en /mochan/varios / aborto20100106, | Etiquetas: aborto, ciencia, religión, sociedad | liga permanente Tue, 05 Jan 2010
The Gods Delusion
Cargado a las 09:57 en /mochan/varios / libros20100105, | Etiquetas: ciencia, libros, religión | liga permanente Mon, 04 Jan 2010
Mal servicio en IUSACELL
Cargado a las 19:26 en /mochan/varios / iusacell20100104, | Etiquetas: iusacell, telefonía celular | liga permanente
Logros UNAM
Cargado a las 14:23 en /mochan/varios / unam20100104, | Etiquetas: ciencia, humanidades, unam | liga permanente
Invitación Observación Astronómica
Cargado a las 11:32 en /mochan/varios / astronomia20100104, | Etiquetas: astronomía, eventos | liga permanente Sun, 03 Jan 2010
Y2K10 error in spamassasin
Cargado a las 00:39 en /mochan/varios / spamassassin20100103, | Etiquetas: email, network, spam, spamassasin | liga permanente Sat, 02 Jan 2010I spent all morning today in the hospital, as a very close person required a series of studies: a choice between nuclear magnetic resonance 3D image of the brain and computerized axial tomography (CAT) angiography and doppler angiography. Nearby there was a positron-electron tomography (PET) unit. These techniques haver revolutionized medicine, but many people ignore that they exploit a lot of sophisticated modern physics. I have a MD friend who, even though he analyzes PET scans routinely, he was unaware that the PET unit works with antimatter; of course, he didn't know anything about integral transforms and their use for 3D imaging in all kinds of equipment. It would be nice if a series of papers were written relating advances in basic physics and mathematics to advances in medicine. It would be useful to show that physics research is important not only for yielding more efficient industrial processes, but also for helping to alleviate human suffering.
Cargado a las 21:27 en /mochan/varios / nmr20100101, | Etiquetas: doppler, hospital, instrumentation, medicine, nuclear magnetic resonance, positron, tomography, ultrasound, X rays | liga permanente
Belkin wifi routers should be avoided
Cargado a las 20:37 en /mochan/varios / belkin20100101, | Etiquetas: Belkin, network, routing, wireless | liga permanente Thu, 31 Dec 2009
Biking from Cuernavaca to Mexico City
Today I biked from Cuernavaca to Mexico City with my son. The route is here. We started from avenida Zapata in the north of Cuernavaca. We followed the street La Nacional, threading the Federal Road to Mexico at nine crossing points until, one hour later, we reached the start of the road to Huitzilac. This consists of about 4 km. of a grade 8-14 road. It took us about another hour to reach Huitzilac, where I enjoyed a delicious fresh orange and carrot juice. We continued our way for another hour until we reached Tres Marías. From there on we followed a dirt road along the old railroad tracks. After about one hour we reached the very small town of Fierro del Toro . A small distance afterward we crossed the border into the Federal District and reached the bike path (la ciclopista, constructed by the goberment of the Federal District when headed by Andrés Manuel López Obrador, and quite well kept. The way was easygoing afterwards with some magnificent views of the Cerro Pelado, of México City, of El Ajusco. We went across some impressive lava fields. We ended our tour in the Periférico where my wife picked us up. The tour took seven and a half hours. Everything would have been very nice, were it not for the fact that, for the first time in my life I was assaulted at gun point. About 2km. before reaching Fierro del Toro I was riding alone (my son started his ride later, as he is in better physical condition) and quite slowly as I was tired and climbing on a dirt road. Suddenly a guy came running after me shouting something which I didn't understand. It turned out he was armed with a pistol and he was followed by another guy. They didn't act violently and they only took my bag of tools, my cell phone and 300 pesos. They even gave me back my keys and my compass. I didn't feel nervous until they left and I realized my son was following me. Fortunately, he didn't meet them.
Cargado a las 23:13 en /mochan/varios / bicla20091231, | Etiquetas: bicycle, bikepath, ciclopista, Cuernavaca, guns, robbery | liga permanente Wed, 30 Dec 2009
Network is strange
Entries number 3, 5, 6, 7, 9, etc. seem fake; the message didn't arrive several times to the destination. I tried different servers with the same result. A couple of years ago it used to be that messages traveled back and forth within the USA before arriving at destinations in Mexico from an origin in Mexico. For example, to get from my home to my office, both in Cuernavaca, my messages used to travel to New jersey, Texas, etc. I used to speculate this was the NSA spying around. With terrorist attacks/attempts recently in the news, could this be someone meddling with our communications? Or is it simply Cablevision filtering the1 10.149.0.1 (10.149.0.1) 11.294 ms 15.245 ms 20.190 ms 2 10.3.30.4 (10.3.30.4) 22.566 ms 24.841 ms 27.110 ms 3 em.fis.unam.mx (132.248.33.45) 29.400 ms 31.727 ms 34.026 ms 4 * * * 5 em.fis.unam.mx (132.248.33.45) 40.823 ms 39.498 ms 47.958 ms 6 em.fis.unam.mx (132.248.33.45) 123.038 ms 92.422 ms 97.687 ms 7 em.fis.unam.mx (132.248.33.45) 79.342 ms 78.456 ms 80.134 ms 8 * * * 9 * em.fis.unam.mx (132.248.33.45) 199.228 ms 201.366 ms 10 em.fis.unam.mx (132.248.33.45) 202.609 ms 206.443 ms 203.820 ms 11 em.fis.unam.mx (132.248.33.45) 205.095 ms 207.636 ms 221.946 ms 12 em.fis.unam.mx (132.248.33.45) 182.318 ms 182.808 ms 183.241 ms 13 em.fis.unam.mx (132.248.33.45) 168.661 ms 212.076 ms 211.210 ms 14 em.fis.unam.mx (132.248.33.45) 212.494 ms 212.641 ms 212.607 ms 15 em.fis.unam.mx (132.248.33.45) 207.310 ms 211.311 ms 198.175 ms 16 em.fis.unam.mx (132.248.33.45) 163.644 ms 160.906 ms 177.241 ms mochan@fmunu:~$ traceroute packages?
Cargado a las 09:44 en /mochan/varios / red20091230, | Etiquetas: cablevision, network, nsa, routing, terrorism | liga permanente Lista global de etiquetas: aborto, acmor, ade651, administración, age, agua, AMC, amc, AMLO, amor, América Latina, android, anharmonic oscillator, animaciones, anuncios, análisis dimensional, Aristegui, arte, astronomy, astronomía, asymptote, atmósfera, autoreferencia, bachillerato, backflip, Belkin, biblioteca, bicicleta, bicicletas, bicycle, bikepath, biofísica, biografía, biopolímeros, blosedit, blosxom, books, burocracia, Cablemás, cablevision, Calderón, calentamiento global, campus morelos, captcha, Casimir, censura, charlatanería, chistes, ciclopista, ciencia, cine, ciudad, Ciudad de México, club de astronomía, colegio, colloids, coloquio, conacyt, congreso, consejoConsultivo, contaminación, corrupción, counter, creation and anhilation operators, crimen, ctic, cuento, cuernavaca, Cuernavaca, cómputo, danza, debate, debian, defensa, deformed operators, derechos humanos, detector molecular, dgsca, diputados, distinción, divulgación, DNS , docencia, documentation, doi, doppler, drenaje, drogas, earthquake, earthquakes, ecology, ecología, economía, edad de hielo, editoriales, educación, eficiencia, ejército, elecciones, electrodinámica, electrodynamics, email, empleos, emérito, encuestas, energy, energía, EPN, equilibrium, espcm, estado, eventos, extorsión, extraordinary transmission, extraterrestres, familia, fascism, fiesta, firefox, firewall, fluctuations, fluidos, formulaE, fotos, freedom, Fukushima, física, game theory, garciaLorca, gas, generación, geology, gnu, graphics, gt200, GT200, guerra, guitar, guitarra, guns, guías de onda, hacienda, halos, harmonic oscillator, historia, homeopatía, hospital, humanidades, humor, icf, ifai, IFAI, impunidad, infraestructura, ingeniería, innovación, instrumentación, instrumentation, interacción radiación-materia, internet explorer, ionosphere, ionósfera, IOP, ipicyt, iusacell, japón, jueces, justicia, Karman, laicismo, laptop, Leika, lenovo, ley, libertad, libertad, libros, licenciatura, linux, literatura, lylipond, manchas solares, matemáticas, materiales fotónicos, mathematics, mb300, medicina, medicine, medio ambiente, metamateriales, metamaterials, microsoft, militares, moire, moires, moiré, mole, Morelos, morelos, morse oscillator, motivation, mountaineering, movimiento perpetuo , museo, music, mutt email perl labels gmail, México, música, nanociencias, nanoparticles, nanotechnology, narco, network, noticias, nsa, nuclear, nuclear magnetic resonance, obituario, olimpiadas, opinión, pacto, paging, papers, partituras, pcf, pdf, periódico historia, periódicos, personajes, PHP, physics, physicsWorld, plasmones, plegado, plugins, podcast, politics, polímeros, política, posgrado, positron, Poynting, prensa, prevención, pride, productividad, propaganda, pseudociencia, pseudociencia , pseudoscience, puentes, quantum mechanics, radiación, radio, rayos X, reactores nucleares, red, redacción, reforma, regular expressions, religion, religión, retrato, rewards, robbery, rock, root, routing, schools, science, security, seguridad, seguridad nacional, seminario, seminarios, senado, senadores, sheetMusic, simuladores, skydiving, SNI ciencia, sociedad, software, sol, spam, spamassasin, ssh, subdesarrollo, tagging, tcj, tecnología, telefonía celular, temblor, teoría de juegos, terremoto, terrorism, terrorismo, tomography, topes, tortura, trafico, transporte, tráfico, turbulence, turbulencia, uaem, ultrasound, unam, UNAM, universidad, universidades, universum, vacuum, vehículos eléctricos, video, violencia, von Kármán, vortices, vórtices, wbcaptcha, wiki, wikileaks, wireless, X, X rays, zahorismo, ética, óptica Visitas: 8689 |
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