no_tag - Mike Chelen on Diigo

13 Nov 09

SSH and ssh-agent

www.securityfocus.com/...1812 - Preview

ssh -o'RSAAuthentication=no' -o 'PubkeyAuthentication=no' user@myserver

05 Nov 09

Raiden's Realm: Tutorial: Start screen and automatically run a command

www.raiden.net/...and_automatically_run_acommand - Preview

screen -d -m -S LinuxMint btdownloadheadless.py mint.torrent

30 Oct 09

Economics focus: E pluribus tunum | The Economist

www.economist.com/...displaystory.cfm - Preview

bought something for less than they were willing to pay
difference between the price paid and the most a buyer would have agreed to
33 more annotations...
- consumer surplus
- the part of the overall economic benefit from any trade that the buyer gets
- rest of the surplus from a trade goes to the seller
- merchant wants to sell to each customer at a price as close as possible to the most that client would be willing to pay
- this is impossible if everyone is charged the same price
- tailor prices to people’s willingness to pay or price-sensitivity
- vendors in street markets do when they offer naive tourists a higher price than seasoned locals
- sellers can still encourage people to sort themselves into groups which can be charged different prices
- Those who are particularly keen to get their hands on a copy of a new book, for instance, may be willing to pay a higher price for it
- These tactics and others, like selling things in bundles rather than individually, all exploit differences in people’s sensitivity to price.
- sellers and buyers would act under different pricing schemes
- information about how those who buy music online value different songs
- 500 undergraduate students at Wharton
- 50 most popular songs on iTunes earlier that month
  - is this representative of the entire library? - on 2009-10-30
  Add Sticky Note
- Similar data were also collected in January this year, though this time some older and less popular tracks were also included
- uniform price per song that maximised revenue among the students
- $2.30 in 2008 and $1.46 in 2009
- Wharton students may be particularly fond of music
  - age group may also be relatively fond of digital music, and socioeconomic class could have higher spending habits than average - on 2009-10-30
  Add Sticky Note
- song-specific pricing
- increase profits by a mere 3%
- people who valued one song highly also tended to place a high value on others
- person-specific, rather than song-specific, pricing would be more efficient
- sellers’ data are not refined enough to set different prices for different people
- basic demographic information did not tell them much about musical tastes
- according to the 2009 survey data, would be generated by charging the students $21.19 for entry and 37 cents a song
- raise the producer surplus by 30%
- Consumer surplus would also rise in this instance
- buy songs they would have not have done at a higher uniform price
- Spotify
- monthly fee for songs without limit
- several songs together in a bundle (much like an album)
- For example, charging $16.95 for all 50 songs studied (which would have cost $49.50 to download) would leave profit unchanged because enough people would buy.
- it would increase consumer surplus by around 50% by attracting new buyers

27 Oct 09

BBC NEWS | Technology | Government opens data to public

news.bbc.co.uk/...8311627.stm - Preview

"I would like to suggest: sure, make a beautiful website, but first, give us - all of us - the unadulterated data. We have to ask for raw data now."

16 Oct 09

Is there a way to batch recalculate all nodes? | drupal.org

drupal.org/195013 - Preview

Views Bulk Operations
node_save($object);

14 Oct 09

Slicehost Forum - ssh-add error: Could not open a connection to your authentication agent.

forum.slicehost.com/comments.php - Preview

exec ssh-agent bash

13 Oct 09

Howto: Use rtorrent like a pro « Motho ke motho ka botho

kmandla.wordpress.com/...howto-use-rtorrent-like-a-pro - Preview

screen rtorrent
press Ctrl-a d and it will detach
1 more annotations...
- screen -r

08 Oct 09

How To Specify A Custom php.ini For A Web Site (Apache2 With mod_php) | HowtoForge - Linux Howtos and Tutorials

www.howtoforge.com/a-website-apache2-with-mod_php - Preview

/etc/php5/apache2/php.ini

07 Oct 09

SQL Databases Don't Scale

adamblog.heroku.com/...sql_databases_dont_scale - Preview

MySQL’s killer feature is easy configuration of master-slave replication, where you have a read-only slave database that replicates everything coming to the master database in realtime.
sends any reads (SELECT) to one of the read slaves, while only sending writes (INSERT, UPDATE, DELETE) to the master
6 more annotations...
- The read slave technique is the best option for scaling SQL databases.
- horizontal scaling on the read side
- transparent to the application
- master server is a bottleneck
- write-heavy applications
- single point of failure

22 May 09

Creative Commons Attribution Noncommercial ShareAlike Legal Code

creativecommons.org/...legalcode - Preview

must include a
copy of, or the Uniform Resource Identifier for, this
License with every copy
the terms of this License
11 more annotations...
- Derivative Work
- distribute
- rights granted to You
  in Section 3 above
- primarily
- may not exercise
- primarily
  intended for or directed toward commercial advantage or
  private monetary compensation
- exchange of the Work
  for other copyrighted works by means of digital
  file-sharing or otherwise shall not be considered to be
  intended for or directed toward commercial advantage or
  private monetary compensation
- provided there is no
  payment of any monetary compensation in connection with
  the exchange of copyrighted works
- keep intact all
  copyright notices for the Work
- name of
  the Original Author
- "Attribution Parties"

15 May 09

untitled - Twiddla.com

www.twiddla.com/101467 - Preview

Nice set of features, doesn't require flash, supports latex for equations, allows multiple snapshot save points. Export is limited to image (.png). - amiigo on 2009-05-15

13 May 09

WSJ Staff Not Allowed To Mix "Business And Pleasure" On Twitter (NWS)

www.businessinsider.com/and-pleasure-on-twitter-2009-5 - Preview

"discuss articles that haven't been published, meetings you've attended or plan to attend with staff or sources, or interviews that you've conducted."
- Reasonable for some cases, yet surely it would be okay to discuss meetings and interviews with public figures? - on 2009-05-13
Add Sticky Note
whether on Dow Jones sites or in social-networking, e-mail, personal blogs, or other sites outside Dow Jones
- This covers nearly every form of digital communication, and is tantamount to including phone calls for web-generation. - on 2009-05-13
Add Sticky Note
13 more annotations...
- Never misrepresent yourself using a false name when you're acting on behalf of your Dow Jones publication or service.
  - Part of good professional ethics, does this not apply already to all forms of communication? - on 2009-05-13
  Add Sticky Note
- Base all comments posted in your role as a Dow Jones employee in the facts, drawing from and citing your reporting when appropriate. Sharing your personal opinions, as well as expressing partisan political views, whether on Dow Jones sites or on the larger Web, could open us to criticism that we have biases and could make a reporter ineligible to cover topics in the future for Dow Jones.
- Base all comments posted in your role as a Dow Jones employee in the facts, drawing from and citing your reporting when appropriate.
  - Good practice for all writers, and a reasonable goal in professional capacity. - on 2009-05-13
  Add Sticky Note
- could open us to criticism that we have biases
  - Critical perspectives can be welcomed by unbiased authors to substantiate the claim their article is based on fact. - on 2009-05-13
  Add Sticky Note
- whether on Dow Jones sites or on the larger Web
  - Views expressed outside professional capacity should not be subject to approval by one's employer. - on 2009-05-13
  Add Sticky Note
- Consult your editor before "connecting" to or "friending" any reporting contacts who may need to be treated as confidential sources. Openly "friending" sources is akin to publicly publishing your Rolodex.
  - Very good technical advice, which some users may not be aware of. - on 2009-05-13
  Add Sticky Note
- Let our coverage speak for itself, and don't detail how an article was reported, written or edited.
  - These are not mutually exclusive, in that providing additional details can be valuable, if done to further an article that is already strong enough to stand on its own. - on 2009-05-13
  Add Sticky Note
- Don't discuss articles that haven't been published, meetings you've attended or plan to attend with staff or sources, or interviews that you've conducted.
  - Overly vague, what about discussing every day meetings with other staff? Encouraging employees to talk an editor in sensitive cases would be certainly be advisable however. - on 2009-05-13
  Add Sticky Note
- Don't disparage the work of colleagues or competitors or aggressively promote your coverage.
  - Goes back to #2, in that crticism is useful to the degree it is based on research and factual reporting. - on 2009-05-13
  Add Sticky Note
- Don't engage in any impolite dialogue with those who may challenge your work -- no matter how rude or provocative they may seem.
  - Great media/social media advice, agreed on by popular bloggers. - on 2009-05-13
  Add Sticky Note
- Avoid giving highly-tailored, specific advice to any individual on Dow Jones sites. Phrases such as "Travel agents are saying the best deals are X and Y..." are acceptable while counseling a reader "You should choose X..." is not. Giving generalized advice is the best approach.
  - The first phrase is indeed better, the reason is actually because it is *more* specific by providing evidence for its claim. - on 2009-05-13
  Add Sticky Note
- Business and pleasure should not be mixed on services like Twitter.
- Common sense should prevail, but if you are in doubt about the appropriateness of a Tweet or posting, discuss it with your editor before sending.
  - Educated decision making and judgment of the professional remain the surest guarantee of high quality journalism. - on 2009-05-13
  Add Sticky Note

06 Apr 09

Content Nation in Washington: Masters of Twittercraft Talk About Social Media's Impact on Politics and the Press [Content Nation ™]

contentnation.com/...pact-on-politics-and-the-press - Preview

one of the keys to mastering Twitter as a journalist is to remember that it's not such a different medium that the long-established rules of professionalism in journalism don't apply
social media does help people to self-organize much more easily
2 more annotations...
- It's important, then, for politicians to remember that social media's view of "we the people" does not necessarily mean "we the people who agree with my point of view."
- journalists are using Twitter to monitor what other people are saying to prepare their own news articles and they are also using it to make people aware of content on their own publications' Web sites

05 Apr 09

BioscienceWorld

www.bioscienceworld.ca/ryShanghaiZhangjiangHiTechPark - Preview

since 2000 this industry has experienced aggressive growth in China with an annual growth rate over 30%
2005, the gross revenue surpassed $50 billion USD
3 more annotations...
- Gross national pharmaceutical industry revenue
- over $50 billion USD
- China would be expected to grow into the world’s 5th largest market of Biotechnology and Pharmaceutical (Biotech/Pharma) products by 2010

02 Apr 09

Internal vs. External Cloud

www.serverwatch.com/...3812326 - Preview

Many corporate data centers have many different generations of servers from a variety of vendors running different operating systems on different processors — Windows, AIX, Solaris, Linux, Intel, PowerPC, SPARC and so on. In contrast, most cloud services offer a limited choice of operating systems running on a narrow range of hardware.
- This is actually a good reason for virtualization, because it is easier to get VM host running on a couple platforms, than maintaining more specific software. - on 2009-04-02
Add Sticky Note
Steve Oberlin, chief scientist at Cassatt, a San Jose, Calif.-based IT infrastructure management software
11 more annotations...
- "Internal clouds help you to pool your computing resources into a cloud and manage it, applying server resources dynamically on the fly in response to demand," he says. "What you end up with is higher utilization and efficiency."
- organizations have already embarked on virtualization programs
- It enables applications that are not suitable for virtualization (such as those that require the resources of an entire server at peak times) to run more efficiently, and it includes virtualized servers anyway: virtualization, in other words, is part of an internal cloud solution, he says.
- Oberlin says an internal cloud goes beyond this
- James Staten, a principal analyst at Forrester
- Which is better, implementing an internal cloud or using a public cloud?
- "Internal clouds are good because you can follow all of your workflow and security guidelines, and ensure that you are running the right code. The trade-off is that you can't reach the economies of scale that public cloud providers achieve,"
- license management
  - Many server software components have open source versions available, including customized VM images. - on 2009-04-03
  Add Sticky Note
- adapting to the processes of the public cloud
- have to work with what is on offer
- get the benefits of economies of scale

Pulp Nonfiction

www.thenation.com/...hayes - Preview

2005 Congress
passed
$244 billion transportation bill
3 more annotations...
- George W. Bush signed
- tax credits for alternative fuels such as
  ethanol and biomass
- also included a fifty-cent-a-gallon credit
  for the use of fuel mixtures that combined "alternative fuel" with a
  "taxable fuel" such as diesel or gasoline

01 Apr 09

Voluntary amputation and extra phantom limbs : Neurophilosophy

scienceblogs.com/...tation_extra_phantom_limbs.php - Preview

The brain does not register the limb as a part of the body, and contains no representation of it, so it is not incorporated into the body image.

28 Mar 09

Journal of Clinical Investigation -- All data are not created equal

www.jci.org/38802 - Preview

For the examples in this editorial,
let’s discuss Western blots in particular (though the rules apply to Northern,
Southern, and PCR blots too).
bands can be spliced together, but only, and I repeat
only, if they were noncontiguous but run on the same gel at the same
time
39 more annotations...
- a thin line in between the spliced lanes and appropriate text
  added to the figure legend to reflect the modification
- there is nothing more
  reliable than a blot with bubbles — there is no need to erase background noise
  or doublet bands
- a loading control, say β-actin or GAPDH, was probed
  off the same gel
- My understanding of a loading control is that it represents an analysis
  of an irrelevant protein from the exact same gel lane to assess how much sample was loaded
  in that particular lane.
- elementary governing principle to me
- an article that, among other problems, ran the
  loading control on a separate gel at the same time
- running a parallel gel, even if
  the sample run on the gel was an aliquot from the same tube, does not demonstrate equal
  loading of sample in the experimental gel
- How does one control for variations in pipetting
  such small volumes?
- can’t you just cut off the bottom and reprobe that part for the
  actin or other loading control and reprobe the top for another protein of interest?
- some blots need to be stripped and reprobed several
  times
- run duplicate blots and present 2 rows of loading controls?
- worried about the manipulations we can detect
- a
  heavy (or light) hand with a pipette can influence a band’s appearance when no
  loading control is there to normalize it
- exposure times
- in a particular row of a
  Western, all bands presented should be from the same exposure time
- allow
  band splicing — with all the appropriate caveats, as described
- splicing lanes from various exposures of the same blot doesn’t prove anything
- expose most any gel long enough, you’ll get bands to appear and the
  results you want
- can always add another row of lanes to
  your figure that show a longer exposure time to verify that the protein was there
- keep the raw data
- A well-annotated lab
  notebook can resolve problems very quickly.
- Scan the film from your blot and save it on
  your computer and on the lab server, and keep a copy on a USB drive or elsewhere
- data were on a single USB drive that
  had been lost
- paste the film into your lab notebook
- Label the film clearly and
  annotate the date and conditions.
- protect the lab notebook
- Do not lose it when you
  move your lab
- could not substantiate the data
- e-mail a scan of the uncut, labeled film to yourself and
  the senior author to ensure the data are accessible
- print
  them
- Label the data
- multiple copies
- clear records
- If you are the senior author,
  it is incumbent on you to verify all of the raw data yourself.
- There is intense pressure to
  produce, and to produce high-impact results.
- you should be able to
  verify every single piece of data in it and take responsibility
- doing
  anything to please
- tools to be able to detect whether you have altered your figures in any way
  - These principles could be used in cooperation with authors to help them ensure accurate data records are preserved. - on 2009-03-28
  Add Sticky Note
- I hope that the experiments themselves in our published papers have been
  performed properly, but that is not something we can police.
  - The processes of peer review and reproduction of experimental results works together with careful examination and preservation of published material. - on 2009-03-28
  Add Sticky Note

27 Mar 09

Data Visualization is Only Part of the Answer to Big Data | FlowingData

flowingdata.com/...part-of-the-answer-to-big-data - Preview

If you really want to learn about a large dataset, visualization is only part of the answer. It's an exploratory process. You create a graph. You create a whole bunch of graphs. Notice anything interesting? Okay, let's look over there. This process is called exploratory data analysis, coined by famed statistician John Tukey back in the 1970s.
- This is a process for the effective use of visualization methods. - on 2009-03-27
Add Sticky Note
Too often we settle on a particular graphic because it looks pretty, or worse, it helps prove our point.
9 more annotations...
- On the flip side, we often like to visualize everything at once and leave it at that.
- design can do wonders for visualization, yes, but so can analysis
- I say - put the two together. Learn both, and we'll all be that much better at understanding the even bigger data to come.
- a lot of the time the errors are simply mistakes or oversights
- Visualisations that work best for me are those where the presentation layer elucidates relationships within the data, easy on the eye yet still a lens
- research into what visualizations do the best job of increasing usability
- fill this gap between statistics and visualizations
- I have come to the exact same conclusion: use raw data visualization to define hypotheses before doing the statistical analysis, which leads to new visualizations again, and so on.
- We (a design research group) recently made a partnership with a department of statistics, in order to be able to work both on analysis and visualization

Sustainable Security in Afghanistan: Crafting an Effective and Responsible Strategy for the Forgotten Front

www.americanprogress.org/...sustainable_afghanistan.html - Preview

rapidly deteriorating situation in Afghanistan
President Obama and General David McKiernan, who commands all U.S. and NATO troops in Afghanistan, agree that we are not winning the war against the Taliban and other insurgent groups
36 more annotations...
- Facing facts on the ground
- comprehensive and long-term approach
- since the United States began planning to invade Iraq in early 2002, Afghanistan became the “Forgotten Front” for U.S. policymake
- limited to seeking out and killing surviving Taliban, Al Qaeda and other transnational terrorist groups
- As a result, critical political and economic reforms to ensure the country recovered from the extremist Taliban regime and decades of war were neglected.
- chronic and unacceptable neglect has led to a resurgent Taliban, a fierce insurgency, a weak Afghan government tainted by corruption and incompetence, a booming opium trade, and an increasingly disillusioned Afghan people
- Despite some initial success by the United States and its coalition partner
- Taliban, Al Qaeda and other insurgent groups are now stronger than at any time since the 9/11 attacks
- operating out of neighboring Pakistan and Afghanistan and making key inroads in both countries
- threaten the safety of the United States, its allies, and the stability of South Asia
- comprehensive, sustainable approach
- declining American and European support for the war in Afghanistan
- military, economic, and diplomatic
- 42 percent of the respondents said the United States made a mistake in sending military forces to Afghanistan
- majorities in Germany, Britain, France, and Italy opposing increased troop commitments to the conflict
- During the presidential campaign and since taking office, President Obama and top administration officials
- Afghanistan is a top foreign policy priority
- years of policy drift in Afghanistan under the Bush administration
- comprehensive review of its policies toward Afghanistan and Pakistan
- April 4, 2009
- deploy an additional 17,000 troops to Afghanistan by the summer
- total number of U.S. military personnel in Afghanistan to 55,000
- additional troops to deploy in time for the country’s presidential elections in August and the beginning of Afghanistan’s fighting season
- one-third the level in Iraq
- comprehensive strategy
- how to reverse the deteriorating situation in Afghanistan
- decision to send more troops could ensnare the United States and its allies in a quagmire
- analysts question the need for further troop deployments to Afghanistan
- limited goals in the country
- bypass the national government in Kabul
- administration have signaled that they might aim for limited goals
- strategy to recapture the initiative in Afghanistan
- history of fragmentation and armed resistance to outside powers
- United States will save approximately $330 billion from reduced combat missions in Iraq
- $25 billion of this savings should be redirected each year to pay for the increased U.S. troop presence in Afghanistan
- $5 billion per year should be redirected to increase U.S. foreign aid and diplomatic operations

Mike Chelen's Library tagged no_tag → View Popular

SSH and ssh-agent

Raiden's Realm: Tutorial: Start screen and automatically run a command

Economics focus: E pluribus tunum | The Economist

BBC NEWS | Technology | Government opens data to public

Is there a way to batch recalculate all nodes? | drupal.org

Slicehost Forum - ssh-add error: Could not open a connection to your authentication agent.

Howto: Use rtorrent like a pro « Motho ke motho ka botho

How To Specify A Custom php.ini For A Web Site (Apache2 With mod_php) | HowtoForge - Linux Howtos and Tutorials

SQL Databases Don't Scale

Creative Commons Attribution Noncommercial ShareAlike Legal Code

untitled - Twiddla.com

WSJ Staff Not Allowed To Mix "Business And Pleasure" On Twitter (NWS)

Content Nation in Washington: Masters of Twittercraft Talk About Social Media's Impact on Politics and the Press [Content Nation ™]

BioscienceWorld

Internal vs. External Cloud

Pulp Nonfiction

Voluntary amputation and extra phantom limbs : Neurophilosophy

Journal of Clinical Investigation -- All data are not created equal

Data Visualization is Only Part of the Answer to Big Data | FlowingData

Sustainable Security in Afghanistan: Crafting an Effective and Responsible Strategy for the Forgotten Front

Selected Tags

Sponsored Links

Top Contributors

Groups interested in no_tag

KDR Tau Chapter

alwaha

1PPPRET-PM

Erotica

Digital Citizenship/Cyberbullying Video Clips

Web 2.0 Tools