RT @mecredis: "US budget is like Oregon Trail. Spend all your $ on ammunition; wonder why your wagon is falling apart and everyone is dying of dysentery"
yeap the point is python caches small ints (till 256) and when you define an int it returns cached small int object so "is" comparasion passes but after 256 python creates new object and "is" failed, thanks to ahmet :)
- aydın
Extra credit, explain: p=1000; q=1000; p is q
- Rob Syme
Every code object has a tuple of constants. The LOAD_CONST opcode loads a constant from this tuple onto the VM stack. So every time 1000 occurs in the program text, it refers to the same object in the tuple of constants for that block. At an interactive interpreter, each line is its own block. You can put multiple simple statements in one statement with semi-colons, so here you've...
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- Jeremy Hylton
It is just the structures and the unique CDD ID so that we can link from the structure to the CDD record. You then have to register and login to CDD to see anything but it is free to access.
- Antony Williams
Unfortunately just discovered a pile of "synthetic" MS adducts in the deposition...Lipidmaps content plus Na, K, NH4 adducts that have to be deprecated.
- Antony Williams
All synthetic adducts have now been removed.
- Antony Williams
ChemDoodle Web Components version 4.1 has been released. Contact us for custom development, integration and support to take advantage of this technology for your business. In addition to the update, 2 new powerful demos are provided: Simulate NMR and MS – Draw a structure in an HTML5 <canvas> and then see 1H and 13NMR spectra, as well [...]
- Kevin Theisen
ChemDoodle desktop provides interactive spectrum-structure assignments for simulated NMR spectra, but this capability is not yet provided in the ChemDoodle Web Components library.
- Kevin Theisen
It would be very useful if one could use mol grabber to bring in molecule to the drawing canvas, and then modify it further
- Jan Jensen
Actually it can. On the top row of buttons for the sketcher, the 3rd one from the left (binoculars) provides the search function.
- Kevin Theisen
Fabio Casati is doing some interesting stuff...
- Cameron Neylon
"Highly Inefficient Publishing Process. This model is incredibly inefficient under every perspective, and results in a colossal waste of public funding, and forces researchers worldwide to waste countless hours that could be devoted to better research (or to have fun with family and friends). It is a system deeply rooted in the past, oblivious to the advent of the Web and related new...
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- Daniel Mietchen
It is interesting that the ACM Digital Library entry (http://portal.acm.org/citatio...) for this article has a broken DOI number and requires an account for full text access. The authors note that: "this is preliminary work (version 1.0, or rather 0.9). We release it anyway according to the concepts proposed in this document." This is a nice illustration of the point that the ACM Digital Library does not handle versioning well.
- Don Pellegrino
Oops - forgot to mention the ONS Solubility project...! But that's even a step further again. Maybe people need to get their heads around normal self-publishing of books first :-)
- Noel O'Boyle
Some advantages with LuLu: you get an ISBN, students who are co-author the book are in our library's catalog, can upload datasets to Nature Precedings (they only accept PDF)
- Jean-Claude Bradley