koglist February 2002

koglist@maillist.ttk.hu

10 participants
21 discussions

by Győri Borbála

> >From: MX%"Marc.Bekoff(a)Colorado.EDU" 14-FEB-2002 02:09:20.50 >To: MIKLOSA >CC: >Subj: RE: PLAN TO REAR BABY CHIMPANZEES AS HUMANS DRAWS FIRE (fwd) > >Return-Path: <bekoffm(a)spot.colorado.edu> >Received: from spot.colorado.edu by ludens.elte.hu (MX V4.2 AXP) with SMTP; > Thu, 14 Feb 2002 02:09:20 +0100 >Received: from localhost (bekoffm@localhost) by spot.colorado.edu > (8.11.6/8.11.2/ITS-5.0/standard) with ESMTP id g1E16AP17803; >Wed, 13 > Feb 2002 18:06:11 -0700 (MST) >Date: Wed, 13 Feb 2002 18:06:10 -0700 (MST) >From: BEKOFF MARC <Marc.Bekoff(a)Colorado.EDU> >To: Undisclosed recipients: ; >Subject: RE: PLAN TO REAR BABY CHIMPANZEES AS HUMANS DRAWS FIRE (fwd) >Message-ID: <Pine.GSO.4.40.0202131805240.14918- 100000(a)spot.colorado.edu> >MIME-Version: 1.0 >Content-Type: TEXT/PLAIN; charset=X-UNKNOWN >Content-Transfer-Encoding: BINARY >X-MX-Comment: QUOTED-PRINTABLE message automatically decoded > > > > > > IDA News Release > > > FOR IMMEDIATE RELEASE > > > February 13, 2002 > > > Contact: Elliot M. Katz, DVM, 415/388-9641 x 25 > > > www.idausa.org > > > > > > PLAN TO REAR BABY CHIMPANZEES AS HUMANS DRAWS FIRE: Despite Criticism, > > > University of Louisiana Set to Approve Controversial Experiments > > > > > > MILL VALLEY, Calif. The University of Louisiana- Lafayettešs (ULL) >New > > > Iberia Research Center (NIRC) is set to approve a controversial łcross > > > fostering˛ study that seeks to raise infant chimpanzees with humans, >In > > > Defense of Animals (IDA) announced today. Two years ago, the >University > > > declined to proceed with the study amid widespread criticism from > > > primatologists and chimpanzee experts, including the eminent Dr. Jane > > > Goodall. > > > > > > The proposed project, conducted by ULL researcher Daniel Povinelli and > > > funded with a $1 million grant from the James S. McDonnell Foundation >of > > > St. Louis, involves recruiting eight human foster parents to live in > > > specially constructed facilities at NIRC and raise infant chimpanzees > > > for five years. > > > > > > łDaniel Povinelli wants to separate vulnerable baby chimpanzees from > > > their natural mothers, allow them to bond with foster parents for five > > > years, then irrevocably break that bond by ripping the trusting > > > youngsters away from the only parents they have known and sending them > > > back to a cage in a laboratory,˛ said Elliot Katz, DVM, IDA president. > > > łAll this to answer the burning question of whether chimpanzees raised > > > by humans in an artificial human laboratory environment differ > > > developmentally and cognitively from chimpanzees raised by other > > > chimpanzees in an artificial animal laboratory environment.˛ > > > > > > łPovinellišs real agenda is clear,˛ Katz continued. łAt the cost of > > > immense suffering and eight irreparably broken lives, he is attempting > > > to give credence to his absurd theory that chimpanzees do not think, >or > > > have self-awareness, like humans.˛ > > > > > > Katz noted that overwhelming scientific evidence contradicts >Povinelli, > > > who is so far out of the mainstream that his work is routinely cited >by > > > fundamentalist creationists in their battles against the theory of > > > evolution. Katz also observed that Povinellišs attempts to prove a > > > łcognitive chasm˛ between humans and chimpanzees just happen to take > > > place at a facility that uses hundreds of chimpanzees in invasive > > > biomedical research. > > > > > > Primate experts have criticized both the science behind the study and > > > the ethical cost of pursuing the experiments. > > > > > > łThe Povinelli project is clearly not original and appears to be > > > redundant,˛ said renowned sign language researcher and chimpanzee >expert > > > Roger Fouts, Ph.D., Professor of Psychology at Central Washington > > > University in Ellensburg, WA. In a statement against the proposed > > > experiments, Fouts noted that cross-fostering research has been done > > > many times. > > > > > > łAll this evidence points to the very high probability that the end of > > > Povinellišs experiment will have a devastating effect on the > > > psychological well-being of the chimpanzees involved when they are > > > abandoned by their human foster parents,˛ Fouts continued. łThis does > > > not mention the potential devastation that the natural mothers will > > > suffer when their babies > > > are taken from them.˛ > > > > > > In his statement, Fouts recalled the litany of tragedies associated >with > > > previous cross-fostering research, including the deaths of several > > > chimpanzees after being abandoned by their human łparents.˛ Foutsš > > > statement can be viewed at http://www.vivisectioninfo.org/fouts.html. > > > > > > Dr. Goodall shared Dr. Foutsš view when she wrote of the original > > > Povinelli proposal: łCross-fostering is very unethical in my view. >Even > > > when captive infant chimps are rejected by their mothers they should >be > > > introduced into groups of their own species as soon as possible. >Failure > > > to do this results in long term, sometimes permanent, behavioural > > > disorders. . . . Detailed observations have been made in the past by > > > psychologists on a number of home raised chimpanzees. In my view there > > > can be little justification for further separation of infant >chimpanzees > > > from their social groups for the purpose of humanizing them for > > > research.˛ Dr. Goodallšs statement is available at > > > http://www.ethologicalethics.org/cross_fostering.htm. > > > > > > Katz said that sources have informed his organization that Povinelli >has > > > recently re-submitted his proposal for review by NIRCšs Institutional > > > Animal Care and Use Committee (IACUC). Katz suggested that pressure > > > from a university administration anxious to bring a $1 million grant > > > into its coffers could account for the pending approval of the > > > controversial study despite rejection two years ago. > > > > > > According to Katz, the reasons the IACUC should again reject the study > > > are many and include the: > > > > > > *devastating impact of separating chimpanzee mothers from their >infants; > > > *immense cruelty and devastation that will result when the infant > > > chimpanzees raised by humans with toys, bedrooms and other amenities >are > > > abandoned and returned to the lab; > > > *lack of justification for breeding eight chimpanzees at a time when a > > > łsurplus˛ of chimpanzees in laboratories numbers 700 or more; > > > *lack of scientific validity in a study that proposes to compare two > > > groups > > > of chimpanzees both raised in highly unnatural and artificial >settings; > > > *redundancy of the cross-fostering research; and > > > *overwhelming scientific evidence contradicting Povinellišs theory >that > > > chimpanzees lack self-awareness and the capacity for true thought. > > > > > > łTo the McDonnell Foundation, New Iberia and Povinelli, these baby > > > chimpanzees are not unique and vulnerable individuals who need vast > > > emotional, psychological and social nourishment just like human >babies, > > > but are simply research objects to be used and ultimately discarded on > > > the altar of unadulterated human arrogance,˛ said Katz. łThis project > > > wonšt help human children, as claimed by Povinelli. The only humans >it > > > will help are those, like Povinelli and New Iberia, who will profit >from > > > this willful devastation of these innocent baby chimpanzees.˛ > > > > > > - end - > > > > > > WHAT YOU CAN DO: > > > Oppose this needless suffering, and the waste of money that could be > > > used to help countless human children, by strongly protesting to the >New > > > Iberia IACUC, the president of the University of Louisiana, Daniel > > > Povinelli, and the James S. McDonnell Foundation. They can be reached > > > at the following: > > > > > > University of Louisiana, 337-482-1000 (switchboard) > > > > > > Ray Authement, president; <president(a)louisiana.edu>; 482-6203 > > > Duane Blumberg, vice-president for research; ><dblumberg(a)louisiana.edu>; > > > 482-5811; > > > Dana Hasselschwert, veterinarian/IACUC member; <dlh8344(a)louisiana.edu> > > > Cary Heath, Prof. Economics/IACUC member; <cary(a)louisiana.edu> > > > Cheryl Lynch, Prof. of Psychology/IACUC member; ><csm5689(a)louisiana.edu>; > > > 482-6596 > > > Daniel Povinelli; <djp3463(a)louisiana.edu>; 482-5180 > > > > > > James S. McDonnell Foundation, 314-721-1532 > > > John Bruer, president; <mailto:bruer@jsmf.org> > > > Susan Fitzpatrick, vice-president; <mailto:susan@jsmf.org> > > > > > > In Defense of Animals, located in Mill Valley, CA, is a national >animal > > > protection organization dedicated to ending the abuse and exploitation > > > of > > > animals by protecting their rights, welfare and habitats. > > > IN DEFENSE OF ANIMALS > > > 131 CAMINO ALTO > > > MILL VALLEY, CA 94941 > > > 415-388-9641 phone > > > 415.388-0388 fax > > > www.idausa.org > > > > > > dr Adam Miklosi Dept of Ethology Univ. of Eotvos Budapest Pazmany P. s. 1/c H-1117 Hungary ____________________________________________________________ _____ Join the worlds largest e-mail service with MSN Hotmail. http://www.hotmail.com ------------------------ Yahoo! Groups Sponsor ------------- --------~--> Get your FREE credit report with a FREE CreditCheck Monitoring Service trial http://us.click.yahoo.com/ACHqaB/bQ8CAA/ySSFAA/HKE4lB/TM ------------------------------------------------------------ ---------~-> To unsubscribe from this group, send an email to: familydogproject-unsubscribe(a)yahoogroups.com Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

24 years, 2 months

The Budapest Open Access Initiative

by Stevan Harnad

Date: Thu, 14 Feb 2002 09:30:12 -0500 From: Peter Suber <peters(a)earlham.edu> The Budapest Open Access Initiative http://www.soros.org/openaccess/ Today marks the official launch of the Budapest Open Access Initiative (BOAI), the most important FOS initiative in a long time. This is the public statement and plan of action that emerged from the conference in Budapest I attended in early December (and described briefly in FOSN for 12/5/01). Between the conference and today, the participants have been drafting the statement and a few other documents to accompany it. I'm very pleased with the result and very proud to have played a role in it. Let me give you a quick tour. The drafters of BOAI represent many perspectives on FOS, many different nations, and many different FOS initiatives. The experience around the table came from university research, libraries, philanthropy, and non-profit and for-profit publishing. You can find the individual drafters and their affiliations at the bottom of the main document, so I won't repeat them here. The first point to make, though, is that while disagreements were plentiful, we all saw that agreements were more basic than disagreements. This diverse group agreed on a common plan to achieve FOS. The initiative endorses the goal of "open access", the term used by BOAI for what I tend to call free online access. BOAI calls for open access to peer-reviewed research articles in all academic fields and the preprints that might precede them. It can easily and naturally be extended to all digital content that its authors consent to disseminate without payment. BOAI endorses two strategies to achieve open access, and supports experiments with other strategies that might prove effective. The first strategy is what Stevan Harnad calls self-archiving. Authors put preprints in institutional or disciplinary archives that comply with the protocols of the Open Archives Initiative. When their articles are published in peer-reviewed journals, they also archive either the refereed postprint or a list of corrigenda (differences between the preprint and the postprint), depending on the journal's permission policies. The second strategy is to launch a new generation of journals committed to provide open access to all their contents. The two strategies are not only compatible; they are complementary. Putting them together creates synergy and the acceleration of parallel processing. Both strategies are sustainable in the long term. We know this because providing open access costs much less than traditional forms of dissemination and much less than the money currently spent on journal subscriptions. The only problem is the transition from here to there. The BOAI is especially promising because it understands this and mobilizes the financial resources to help make the transition possible. George Soros' Open Society Institute (OSI), which convened the original meeting in Budapest, is committing one million dollars a year for three years to BOAI, and recruiting other foundations to add their support to the cause. What makes BOAI special is the way it embraces different approaches and combines principle, strategy, tested means to the desired end, and cash. I'm especially pleased with the BOAI's friendliness toward the many players in the landscape and its focus on constructive steps toward the goal. The BOAI doesn't demand that existing journals change their prices or their access policies. We hope they will, and we will even help pay the costs of converting to a different business model for journals willing to change. But if not, we'll just pursue our goal without their participation. BOAI doesn't call for boycotts of any kind of literature, any kind of journal, or any kind of publisher. It doesn't call for violations of copyright or even for changes in copyright law. It doesn't demand, and needn't wait for, any changes from publishers, markets, or legislation. Scientists and scholars have all the means within their grasp. The BOAI calls on scientists and scholars to take up these means and use them, and it invites the cooperation of all those disposed to help. My considered judgment is that the primary obstacle faced by BOAI,and the FOS movement in general, is misunderstanding. Most of the objections we hear (about copyright, about quality and peer review, about financing...) are based on misunderstanding. That's good news insofar as it means that most resistance will melt away when our ends and means are properly understood. But of course it's bad news if our efforts to date have not done more to clarify our ends and means. The BOAI is taking steps to disarm as many objections as possible with a detailed FAQ. Not everyone will read it, of course. But for those who do, it will answer 95% of the questions, objections, and anxieties that similar initiatives have provoked in the past. Of course, FAQ's don't change the world, and we have other tools for changing the world. But if our primary obstacle really is misunderstanding, then the FAQ is one of our most potent tools. HOW YOU CAN HELP. You can help the BOAI by signing it, persuading your institution to sign it, and spreading the word about it. A signature indicates a pledge of assistance and participation. If you [or your institution] are willing to self-archive your own papers, or submit them to open-access journals, help launch new open-access journals [or archives], or any of a number of things listed at the site, then you [or your institution] should sign. Signatures don't call on others to act, but demonstrate that someone is acting. The growing list of signatures is a measure of our strength. If you have questions about BOAI, send them to me (peters [at] earlham.edu) and I'll try to answer them in the newsletter or the discussion forum. BOAI Home page http://www.soros.org/openaccess/ What you can do to help http://www.soros.org/openaccess/help.shtml (Separate sections for reseearchers, universities, libraries, journals, foundations, professional societies, governments,and citizens.) FAQ http://www.earlham.edu/~peters/fos/boaifaq.htm (The FAQ and the list of ways you can help, above, will remain open to revision.) See who has signed http://www.soros.org/openaccess/view.cfm Sign it yourself http://www.soros.org/openaccess/sign.shtml Open Society Institute http://www.osi.hu/infoprogram/ * Postscript. I like the term "open access" and will start to use it more often in the newsletter. It's not perfect, however. It's short but not self-explanatory. We decided that this was better than a long phrase that contained all the needed nuances. ("Free online access" is more self-explanatory but still falls short; a truly self-explanatory phrase would be very long.) The BOAI defines the term explicitly, which frees it to trade off perspicuity for brevity. If the term and its definition can spread, then we'll have a useful new tool for discussing FOS issues. --Now all we need is a short term for the body of literature to which this applies. * PPS. The term "open access" is already spreading in this context. The Scholarly Publishing and Academic Resources Coalition (SPARC) supports both free and affordable scholarly journals, and has now flagged the free ones on its web list with a bright yellow "Open Access" icon. SPARC is an institutional signatory of the BOAI, and SPARC's director, Rick Johnson, is one of the BOAI drafters. http://www.arl.org/sparc/core/index.asp?page=c0 * PPPS. I expected to have no news accounts of BOAI to cite until the next issue. But here are a few that just came out as I prepare to click SEND. Declan Butler, Soros Offers Access to Science Papers (for Nature) http://makeashorterlink.com/?U21535A6 Ivan Noble, Boost for Research Paper Access (for BBC) http://news.bbc.co.uk/hi/english/sci/tech/newsid_1818000/1818652.stm Michael Smith, Soros Backs Academic Rebels (for UPI) http://www.upi.com/view.cfm?StoryID=12022002-031227-9710r [Alexander Grimwade, Open Societies Need Open Access (The Scientist) http://www.the-scientist.com/yr2002/feb/comm_020218.html ] [Denis Delbecq, L'abordage des revvues scientifiques (Liberation, Paris) http://www.liberation.com/quotidien/semaine/020214-050019088SCIE.html ] [http://slashdot.org/] More to come! NOTE: A complete archive of the ongoing discussion of providing free access to the refereed journal literature online is available at the American Scientist September Forum (98 & 99 & 00 & 01): http://amsci-forum.amsci.org/archives/september98-forum.html or http://www.cogsci.soton.ac.uk/~harnad/Hypermail/Amsci/index.html You may join the list at the amsci site. Discussion can be posted to: september98-forum(a)amsci-forum.amsci.org

24 years, 2 months

[Fwd: MEGHIVO]

by George Kampis

Szerintem roppant erdekes tema, Bergsontol Wittgensteinig jut az embernek mindenfele eszebe rola. AKit erdekel gondolom szerettel latjak, en csak fogadatlan prok. vagyok. udv kgy -------- Original Message -------- Subject: MEGHIVO Date: Mon, 11 Feb 2002 15:05:49 +0100 From: Laki Janos <j.laki(a)helka.iif.hu> To: KAMPIS GYÖRGY <gk(a)hps.elte.hu> Kedves Gyuri! Február 22-én 11-kor Petra von Morstein elõadást tart a Fil. Kutatóint-.ben, melyre ezúton invitállak. A hölgy eredendõen Wittgenstein-kutató, most a nem-individuális én-fogalomról fog beszélni (a Te biztonsági öved be van kapcsolva, ne félj!) Kérlek, jelezz vissza, hogy tudsz-e jönni! Üdv. János

24 years, 2 months

Helyesbites Barkoczi ilona elodasa idopontjaban

by Kurgyis Jozsef

Barkoczi Ilona Szilard Leo professzori osztondij atadasanak idopontjat tevesen irtam elozo levelemben!!!! A helyes idopont: februar 11., hetfo, d.e. 11 ora Helyszine: ELTE TTK Aulaja (Pazmany Peter setany 1/a foldszint Elnezest a teves informacioert! K.J.

24 years, 3 months

PHILOSOPHY OF SCIENCE COLLOQUIUM - CHANGED(!) FEBRUARY PROGRAM

by Laszlo E. Szabo

Department of History and Philosophy of Science Eotvos University Budapest, Pazmany P. setany 1/A PHILOSOPHY OF SCIENCE COLLOQUIUM (http://hps.elte.hu/seminar) ________________________________________________ CHANGED! CHANGED! CHANGED! February program _______________________________________________________ C a n c e l l a t i o n! Gábor Etesi & István Németi's talk originally scheduled for 18 February is postponed through illness for 11 March. _______________________________________________________ 18 February 4:00 PM 6th floor 6.54 (Language: English, except all participants speak Hungarian) L á s z l ó E . S z a b ó Theoretical Physics Research Group Department of History and Philosophy of Science Eötvös University, Budapest Critical reflections on the Bayesian theory of confirmation * Subjective probabilities * Bayesian theory of confirmation * Applications: Design argument Swinburne's Bayesian argument for the existence of God. The antropic principle * Criticism: Bayesianism = misuse of conditional probabilities Against a priori probabilities 25 February 4:00 PM 6th floor 6.54 (Language: Hungarian) P é t e r H r a s k ó Janus Pannonius University, Pécs Mit mond a kvantumelmélet az alagúteffektus időtartamáról? (What does quantum theory say about the duration of tunneling?) A kvantumelmélet az alagúteffektus valószínűségét pontosan megjósolja, de nem ad egyértelmű előírást az alagutazás időtartamának a kiszámítására. Az utóbbi időben lehetővé vált a probléma kísérleti vizsgálata fotonokkal, mert sikerült olyan fóliát előállítani, amely foton-barrierként viselkedik. Ez a fejlemény tette aktualissá az alagutazási idő problémáját, amely összefügg a spontán állapotredukció kérdésével és a kvantumelmélet alapjait érinti. A kérdéskörbe a R. Y. Chiao, [http://ArXiv.org/abs/quant-ph/9811019] összefoglaló nyújt bevezetést. Az előadás szorosan vett témáját a P. Hraskó, [http://ArXiv.org/abs/quant-ph/0010056] cikkben végzett alagutazási-idő számítás alapgondolata képezi. ___________________ The organizer of the seminar: László E. Szabó -- Laszlo E. Szabo Department of Theoretical Physics Department of History and Philosophy of Science Eotvos University, Budapest H-1518 Budapest, Pf. 32, Hungary Phone/Fax: (36-1)372-2924 Home: (36-1) 200-7318 Mobil/SMS: (36) 20-366-1172 http://hps.elte.hu/~leszabo

24 years, 3 months

Barkoczi Ilona eloadasa

by Kurgyis Jozsef

Februar 12-en d.e. 11 oratol A Szilard Leo professzori osutondij atadasa lesz az ELTE TTK Aulajaban (Pazmany Peter setany 1/a fsz.). a Dijazottak kozott lesz Barkoczi Ilona is. A dijazottak eloadast tartanak, melyre szerettel varunk minden erdeklodot! K.j.

24 years, 3 months

Látás-Klub

by Vidnyanszky Zoltan

24 years, 3 months

Látás-Klub

by Vidnyanszky Zoltan

Tisztelt Kollégák! Ezúton meghívunk minden érdeklodot a LÁTÁS KLUB alakuló rendezvényére, melynek helye: Semmelweis Egyetem, Anatómiai Intézet, Könyvtár (Tuzoltó u.58, bejárat az Ülloi út 93 autóbejáróján keresztül) idopontja: 2002. 02. 21. 17 óra, Célunk rendszeres találkozás, ismeretszerzés és eszmecsere lehetoségének biztosítása a látás (valamint tágabb értelemben véve az emberi percepció és megismerés) neurobiológiája iránt érdeklodok számára. Az elso találkozáson ismertetjük a Klub muködésével és programjaival kapcsolatos elképzeléseinket valamint bemutatjuk a Klubhoz kapcsolódó intézményeket és a bennük folyó munkákat Kérjük, hogy a részvételi szándékot a következo címen jelezzék: neurokogart(a)freemail.hu üdvözlettel, Vidnyánszky Zoltán

24 years, 3 months

Fwd: Javitas!!! PHILOSOPHY OF SCIENCE COLLOQUIUM, FEBRUARY

by Gergely Csibra

Non-member submission from ["Laszlo E. Szabo" <leszabo(a)ludens.elte.hu>] --- Date: Sun, 03 Feb 2002 21:29:29 +0100 From: "Laszlo E. Szabo" <leszabo(a)ludens.elte.hu> To: mafla <mafla(a)hps.elte.hu>, fizinfo <fizinfo(a)sunserv.kfki.hu>, Multiple recipients of list <koglist(a)cogpsyphy.hu> Subject: Javitas!!! PHILOSOPHY OF SCIENCE COLLOQUIUM, FEBRUARY Az eluzu hmrdetisben Hrasks Piter eluadasanak datumat elmrtam. Elnizist kirek! Termiszetesen 25-in lesz. _______________________________ Department of History and Philosophy of Science Eotvos University Budapest, Pazmany P. setany 1/A PHILOSOPHY OF SCIENCE COLLOQUIUM (http://hps.elte.hu/seminar) ________________________________________________ February program 18 February 4:00 PM 6th floor 6.54 Gabor Etesi* ** (lecturer) and Istvan Nimeti** * Yukawa Institute, Kyoto University, Japan **Alfrid Rinyi Institute of Mathematics, Budapest General relativistic- (and/or quantum-) computability; computing non-Turing-computable functions in Malament-Hogarth spacetimes It used to be a (meta) theorem of mathematical logic that mankind will never know that ZFC (which forms the foundation of mathematics) is consistent, assuming it is. We will argue that this meta-theorem is gone, it is no more provable. We will report on (convergent) results of various research groups at various parts of the world coming, independently, to the same conclusion which is, roughly, that Turing computability may not (after all) be the final limit of the capabilities of artificial computing devices. Some of the above mentioned researchers are e.g. Hogarth (Cambridge), Malament, Earman, ourselves, Kieu (Australia), F. Tipler, to mention only a few. We investigate the Church--Kalmar--Kreisel--Turing Theses concerning theoretical (necessary) limitations of future computers and of deductive sciences, in view of recent results of classical general relativity theory. We argue that (i) there are several distinguished Church--Turing-type Theses (not only one) and (ii) validity of some of these theses depend on the background physical theory we choose to use. In particular, if we choose classical general relativity theory as our background theory, then the above mentioned limitations (predicted by these Theses) become no more necessary, hence certain forms of the Church--Turing Thesis cease to be valid (in general relativity). (For other choices of the background theory the answer might be different.) We also look at various ``obstacles'' to computing a non-recursive function (by relying on relativistic phenomena) published in the literature and show that they can be avoided (by improving the ``design'' of our future computer). We also ask ourselves, how all this reflects on the arithmetical hierarchy and the analytical hierarchy of uncomputable functions. (We note that the goal of ``computing the uncomputable'' is distincly more modest than executing so called supertasks. Indeed, we do not claim possibility of the second.) A paper advocating carefully and it detail the view we adopt here -- that developments in the background physical theory can influence profoundly the fundamentals of the theories of computability and logic -- appeared in Bull. Symbolic Logic Vol. 6 No 3 (2000), pp.265-283 by Deutsch et al. Our paper on this subject is available on the following internet address: [http://ipsapp008.lwwonline.com/ips/frames/menu.asp?J=4779&S=36698&M=40800#] A further useful reference is Hogarth, M.: ``Predictability, Computability, and Spacetime'', pp.1-123, available from [mh10026(a)cam.ac.uk]. 25 February 4:00 PM 6th floor 6.54 Piter Hrasks Janus Pannonius University, Pics Mit mond a kvantumelmilet az alagzteffektus idutartamarsl? (What does quantum theory say about the duration of tunneling?) A kvantumelmilet az alagzteffektus valsszmn{sigit pontosan megjssolja, de nem ad egyirtelm{ elumrast az alagutazas idutartamanak a kiszammtasara. Az utsbbi iduben lehetuvi valt a problima kmsirleti vizsgalata fotonokkal, mert siker|lt olyan fsliat eluallmtani, amely foton-barrierkint viselkedik. Ez a fejleminy tette aktualissa az alagutazasi idu problimajat, amely vsszef|gg a spontan allapotredukcis kirdisivel is a kvantumelmilet alapjait irinti. A kirdiskvrbe a R. Y. Chiao, [http://ArXiv.org/abs/quant-ph/9811019] vsszefoglals nyzjt bevezetist. Az eluadas szorosan vett timajat a P. Hrasks, [http://ArXiv.org/abs/quant-ph/0010056] cikkben vigzett alagutazasi-idu szammtas alapgondolata kipezi. ___________________ The organizer of the seminar: Laszls E. Szabs -- Laszlo E. Szabo Department of Theoretical Physics Department of History and Philosophy of Science Eotvos University, Budapest H-1518 Budapest, Pf. 32, Hungary Phone/Fax: (36-1)372-2924 Home: (36-1) 200-7318 Mobil/SMS: (36) 20-366-1172 http://hps.elte.hu/~leszabo

24 years, 3 months

Fwd: PHILOSOPHY OF SCIENCE COLLOQUIUM, FEBRUARY

by Gergely Csibra

Non-member submission from ["Laszlo E. Szabo" <leszabo(a)ludens.elte.hu>] Date: Fri, 01 Feb 2002 22:30:15 +0100 From: "Laszlo E. Szabo" <leszabo(a)ludens.elte.hu> To: mafla <mafla(a)hps.elte.hu>, fizinfo <fizinfo(a)sunserv.kfki.hu>, Multiple recipients of list <koglist(a)cogpsyphy.hu> Subject: PHILOSOPHY OF SCIENCE COLLOQUIUM, FEBRUARY Department of History and Philosophy of Science Eotvos University Budapest, Pazmany P. setany 1/A PHILOSOPHY OF SCIENCE COLLOQUIUM (http://hps.elte.hu/seminar) ________________________________________________ February program 18 February 4:00 PM 6th floor 6.54 Gabor Etesi* ** (lecturer) and Istvan Nimeti** * Yukawa Institute, Kyoto University, Japan **Alfrid Rinyi Institute of Mathematics, Budapest General relativistic- (and/or quantum-) computability; computing non-Turing-computable functions in Malament-Hogarth spacetimes It used to be a (meta) theorem of mathematical logic that mankind will never know that ZFC (which forms the foundation of mathematics) is consistent, assuming it is. We will argue that this meta-theorem is gone, it is no more provable. We will report on (convergent) results of various research groups at various parts of the world coming, independently, to the same conclusion which is, roughly, that Turing computability may not (after all) be the final limit of the capabilities of artificial computing devices. Some of the above mentioned researchers are e.g. Hogarth (Cambridge), Malament, Earman, ourselves, Kieu (Australia), F. Tipler, to mention only a few. We investigate the Church--Kalmar--Kreisel--Turing Theses concerning theoretical (necessary) limitations of future computers and of deductive sciences, in view of recent results of classical general relativity theory. We argue that (i) there are several distinguished Church--Turing-type Theses (not only one) and (ii) validity of some of these theses depend on the background physical theory we choose to use. In particular, if we choose classical general relativity theory as our background theory, then the above mentioned limitations (predicted by these Theses) become no more necessary, hence certain forms of the Church--Turing Thesis cease to be valid (in general relativity). (For other choices of the background theory the answer might be different.) We also look at various ``obstacles'' to computing a non-recursive function (by relying on relativistic phenomena) published in the literature and show that they can be avoided (by improving the ``design'' of our future computer). We also ask ourselves, how all this reflects on the arithmetical hierarchy and the analytical hierarchy of uncomputable functions. (We note that the goal of ``computing the uncomputable'' is distincly more modest than executing so called supertasks. Indeed, we do not claim possibility of the second.) A paper advocating carefully and it detail the view we adopt here -- that developments in the background physical theory can influence profoundly the fundamentals of the theories of computability and logic -- appeared in Bull. Symbolic Logic Vol. 6 No 3 (2000), pp.265-283 by Deutsch et al. Our paper on this subject is available on the following internet address: [http://ipsapp008.lwwonline.com/ips/frames/menu.asp?J=4779&S=36698&M=40800#] A further useful reference is Hogarth, M.: ``Predictability, Computability, and Spacetime'', pp.1-123, available from [mh10026(a)cam.ac.uk]. 18 February 4:00 PM 6th floor 6.54 Piter Hrasks Janus Pannonius University, Pics Mit mond a kvantumelmilet az alagzteffektus idutartamarsl? (What does quantum theory say about the duration of tunneling?) A kvantumelmilet az alagzteffektus valsszmn{sigit pontosan megjssolja, de nem ad egyirtelm{ elumrast az alagutazas idutartamanak a kiszammtasara. Az utsbbi iduben lehetuvi valt a problima kmsirleti vizsgalata fotonokkal, mert siker|lt olyan fsliat eluallmtani, amely foton-barrierkint viselkedik. Ez a fejleminy tette aktualissa az alagutazasi idu problimajat, amely vsszef|gg a spontan allapotredukcis kirdisivel is a kvantumelmilet alapjait irinti. A kirdiskvrbe a R. Y. Chiao, [http://ArXiv.org/abs/quant-ph/9811019] vsszefoglals nyzjt bevezetist. Az eluadas szorosan vett timajat a P. Hrasks, [http://ArXiv.org/abs/quant-ph/0010056] cikkben vigzett alagutazasi-idu szammtas alapgondolata kipezi. ___________________ The organizer of the seminar: Laszls E. Szabs -- Laszlo E. Szabo Department of Theoretical Physics Department of History and Philosophy of Science Eotvos University, Budapest H-1518 Budapest, Pf. 32, Hungary Phone/Fax: (36-1)372-2924 Home: (36-1) 200-7318 Mobil/SMS: (36) 20-366-1172 http://hps.elte.hu/~leszabo

24 years, 3 months

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

1996

1995

1994

1993

koglist February 2002