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Discussion of the Essence# programming language, and related issues and technologies. |
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Engineers demonstrate nanotube wires operating at speed of commercial chips from PhysOrg.com
Integrated circuits, such as the silicon chips inside all modern electronics, are only as good as their wiring, but copper conduits are approaching physical performance limitations as they get thinner.
[Continued]
DNA is blueprint, contractor and construction worker for new structures from PhysOrg.com
DNA is the blueprint of all life, giving instruction and function to organisms ranging from simple one-celled bacteria to complex human beings. Now Northwestern University researchers report they have used DNA as the blueprint, contractor and construction worker to build a three-dimensional structure out of gold, a lifeless material.
[Continued]
Programming Biomolecular Self-Assembly Pathways from PhysOrg.com
Nature knows how to make proteins and nucleic acids (DNA and RNA) dance to assemble and sustain life. Inspired by this proof of principle, researchers at the California Institute of Technology have demonstrated that it is possible to program the pathways by which DNA strands self-assemble and disassemble, and hence to control the dynamic function of the molecules as they traverse these pathways.
[Continued]
The New York Times has an article today (Big Brain Theory: Have Cosmologists Lost Theirs?) that discusses the philosophical issues arising from the latest theories of cosmology:
It could be the weirdest and most embarrassing prediction in the history of cosmology, if not science.
If true, it would mean that you yourself reading this article are more likely to be some momentary fluctuation in a field of matter and energy out in space than a person with a real past born through billions of years of evolution in an orderly star-spangled cosmos. Your memories and the world you think you see around you are illusions.
Nanotechnology innovation may revolutionize gene detection in a single cell from PhysOrg.com
Scientists at Arizona State University’s Biodesign Institute have developed the world’s first gene detection platform made up entirely from self-assembled DNA nanostructures. The results, appearing in the January 11 issue of the journal Science, could have broad implications for gene chip technology and may also revolutionize the way in which gene expression is analyzed in a single cell.
[Continued]
An 'attractive' man-machine interface from PhysOrg.com
Researchers at Children’s Hospital Boston have developed a new “nanobiotechnology” that enables magnetic control of events at the cellular level. They describe the technology, which could lead to finely-tuned but noninvasive treatments for disease, in the January issue of Nature Nanotechnology (published online January 3).
[Continued]
Version 2007k of the Chronos Time Zone Repository has been published. It is based on version 2007k of the Olson Time Zone Database.
Downloads:
Most of the listed "holidays" will actually be business days, although some will not. The US Federal Holidays (on which most US Government offices will close, along with all Federally-chartered banks) are highlighted in bold. Generally, each business decides on its own which of these days (if any) will be non-business days (and for which employees):
Tue, 01 Jan 2008: NewYearsDay
Tue, 08 Jan 2008: JacksonDay
Mon, 21 Jan 2008: MartinLutherKingDay
Sat, 02 Feb 2008: GroundhogDay
Tue, 12 Feb 2008: LincolnsBirthday
Thu, 14 Feb 2008: ValentinesDay
Mon, 18 Feb 2008: WashingtonsBirthday
Mon, 17 Mar 2008: StPatricksDay
Fri, 21 Mar 2008: GoodFriday
Sun, 23 Mar 2008: Easter
Tue, 01 Apr 2008: AprilFoolsDay
Tue, 22 Apr 2008: EarthDay
Wed, 23 Apr 2008: AdministrativeAssistantsDay
Fri, 25 Apr 2008: ArborDay
Sun, 11 May 2008: MothersDay
Mon, 26 May 2008: MemorialDay
Sat, 14 Jun 2008: FlagDay
Sun, 15 Jun 2008: FathersDay
Fri, 04 Jul 2008: IndependenceDay
Sun, 27 Jul 2008: ParentsDay
Mon, 01 Sep 2008: LaborDay
Sun, 07 Sep 2008: GrandParentsDay
Mon, 13 Oct 2008: ColumbusDay
Fri, 24 Oct 2008: UnitedNationsDay
Fri, 31 Oct 2008: Halloween
Tue, 04 Nov 2008: ElectionDay
Tue, 11 Nov 2008: VeteransDay
Thu, 27 Nov 2008: Thanksgiving
Fri, 28 Nov 2008: DayAfterThanksgiving
Wed, 24 Dec 2008: ChristmasEve
Thu, 25 Dec 2008: Christmas
Wed, 31 Dec 2008: NewYearsEve
| list |
list := SortedCollection sortBlock: [:a :b | a value < b value].
SemanticDatePolicy unitedStates
nominalAnnualEventOccurenceDatesInYear: 2008 do:
[:semanticKey :date | list add: semanticKey->date].
Transcript cr.
list do:
[:assoc |
Transcript
cr; show: (assoc value printStringUsing: #rfc2822);
show: ':'; tab; show: assoc key]
Timepoint now showInCommonWorldTimezones
Tue, 01 Jan 2008 13:55:54 +1300 (NZDT: Pacific/Auckland | New Zealand Time)
Tue, 01 Jan 2008 11:55:54 +1100 (EST: Australia/Sydney | AUS Eastern Time)
Tue, 01 Jan 2008 09:55:54 +0900 (JST: Asia/Tokyo | Tokyo Time)
Tue, 01 Jan 2008 09:55:54 +0900 (WST: Australia/Perth | W. Australia Time)
Tue, 01 Jan 2008 08:55:54 +0800 (HKT: Asia/Hong_Kong)
Tue, 01 Jan 2008 06:25:54 +0530 (IST: Asia/Calcutta | India Time)
Tue, 01 Jan 2008 03:55:54 +0300 (MSK: Europe/Moscow | Russian Time)
Tue, 01 Jan 2008 02:55:54 +0200 (IST: Asia/Jerusalem | Israel Time)
Tue, 01 Jan 2008 01:55:54 +0100 (CET: Europe/Amsterdam)
Tue, 01 Jan 2008 00:55:54 +0000 (GMT: Europe/London | London Time)
Tue, 01 Jan 2008 00:55:54 +0000 (UT: Universal Time)
Mon, 31 Dec 2007 22:55:54 -0200 (BRST: America/Sao_Paulo | E. South America Time)
Mon, 31 Dec 2007 21:55:54 -0300 (ART: America/Argentina/Buenos_Aires)
Mon, 31 Dec 2007 19:55:54 -0500 (EST: America/New_York | Eastern Time)
Mon, 31 Dec 2007 18:55:54 -0600 (CST: America/Chicago | Central Time)
Mon, 31 Dec 2007 17:55:54 -0700 (MST: America/Denver | Mountain Time)
Mon, 31 Dec 2007 16:55:54 -0800 (PST: America/Los_Angeles | Pacific Time)
Mon, 31 Dec 2007 14:55:54 -1000 (HST: Pacific/Honolulu | Hawaiian Time)
Timepoint now showInAllCalendars
Local time is America/Los_Angeles ("Pacific Standard Time")—8 hours west of Universal Time
2007-12-25 AD @ 9:00:15 am -0800 [Gregorian]
0164-15-14 BE @ 9:00:15 am -0800 [Bahai]
1724-04-15 AM @ 9:00:15 am -0800 [Coptic]
2000-04-15 ZH @ 9:00:15 am -0800 [Ethiopic]
5768-10-16 AM @ 9:00:15 am -0800 [Hebrew]
1929-10-04 AS @ 9:00:15 am -0800 [Indian Civil]
1428-12-15 AH @ 9:00:15 am -0800 [Islamic (Fatimid)]
2007-12-12 AD @ 9:00:15 am -0800 [Julian]
2760-12-12 AUC @ 9:00:15 am -0800 [Julian (Imperial)]
1386-10-04 AP @ 9:00:15 am -0800 [Persian]
6244-01-04 SY @ 9:00:15 am -0800 [Solarian]
2007-359 @ 9:00:15 am -0800 [Gregorian-ordinal date]
2007-W52-2 @ 9:00:15 am -0800 [ISO]
J.D. 2454459 @ 9:00:15 am -0800 [Julian Day]
39074:17:00:15.077734 days:hh:mm:ss.s.. since 1901-01-01T00:00:00Z (ST80 epoch)
1198602015 seconds since 1970-01-01T00:00:00Z (Unix epoch)
128430756150777340 100-nanosecond ticks since 1601-01-01T00:00:00Z (MS WIndows epoch)
Christmas
