Hi Friends,

Even as I launch this today ( my 80th Birthday ), I realize that there is yet so much to say and do. There is just no time to look back, no time to wonder,"Will anyone read these pages?"

With regards,
Hemen Parekh
27 June 2013

Now as I approach my 90th birthday ( 27 June 2023 ) , I invite you to visit my Digital Avatar ( www.hemenparekh.ai ) – and continue chatting with me , even when I am no more here physically

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Wednesday, 3 January 2007

EVER CHANGING

Dear Executive

Would your Profiles change, even if you do not EDIT your text resume?

Most certainly - Not only your Percentile but your Raw Score as well.

How often would your Profiles change? With what frequency? At what time-interval?

Someday (when we accumulate a large database of Profiles), we will have an answer. Right now, you will need to guess, based on following Conceptual framework.

Rahul

Graph: A log-log plot of Size of Profiles Database Vs Time Interval of Profiles mutations

  • Profiles Database (Y-axis - logarithmic): 10,000, 100,000, 1 Million, 10 Million, 100 Million, 1000 Million.
  • Time Interval (X-axis - logarithmic): 1 sec, 2 sec, 5 sec, 10 sec, 30 sec, 1 hr, 2 hr, 5 hr, 10 hr, 30 hr, 200 hr, 3000 hr.
  • The plot shows a straight line sloping downwards from the top left (1000 Million, 1 sec) to the bottom right (10,000, 3000 hr).

Wonder how your Profiles take on a new life form, continuously? Here's how:

Molecular Machine (James Clerk Maxwell - 1867)

Diagram: Maxwell's Demon

  • Shows a box divided into two partitions by a wall with a hole guarded by Maxwell's Demon.
  • One side contains FAST PARTICLES ("Faster than average particles").
  • The other side contains SLOW PARTICLES ("Slower than average particles").
  • A particle moving from the Slow to the Fast side is shown as "Faster than average particle".
  • A particle moving from the Fast to the Slow side is shown as "Slower than average particle".

Maxwell's Demon

  • In it, a room with a partition is initially at equilibrium—that is, on average, the molecules are moving uniformly—the room is at a fixed temperature.
  • The partition has a hole which is guarded by a demon. The demon allows "faster than average" particles to move from one partition to the other, while allowing the "slower than average" particles to move the opposite way.
  • Eventually one partition will have mostly "fast particles" (hotter than the initial temperature) while the other will have mostly "slow particles" (colder), thus setting up a gradient and consequently energy.
  • UK researcher David Leigh (University of Edinburgh) has made devices which does something similar. (Source: DNA, Feb. 02, 2007)

 

Candidate's Karmascope (India Recruiter - 2007)

Diagram: Candidate's Karmascope

  • Shows a system connecting a BENCHMARK BOX and a DUSTBIN BOX.
  • Benchmark Box contains: WEIGHTIER KEYWORDS ("Greater than average keywords").
  • Dustbin Box contains: "Lighter Keywords" ("Lesser than average keyword").
  • The process involves a GuruMove Algorithm.

GuruMove Algorithm

  • Indexes keywords found in each resume and aggregates into function/skill-wise databases.
  • Based on frequency of occurrences, computes "weightages" for each keyword. Recomputes the frequency and weightage, with addition of each new resume, on a continuous/dynamic basis.
  • Selects keywords making up 90% of the total weightage for BENCHMARK LISTS (specific function/skill). These are keywords with "Heavy weightage" (BENCHMARK Box in illustration). Throws out remaining (having "LIGHT weightage") into the DUSTBIN BOX.
  • Computes a resume's "Raw Score" based on keywords present, then assigns a "Percentile" based on function-wise/skill-wise population of candidates.
  • Uses generated content (Resumes), creates a "KNOWLEDGE BASE" of hitherto unknown skills/function/expertise.

Newspaper Snippet: DNA - Mumbai, Fri, Feb 2, 2007

Scientist builds Maxwell's demon

Researcher makes device that apes naturally occurring nanomachines such as those that constitute respiration and photosynthesis

Patricia Reaney, London

Nearly 150 years ago it was no more than a concept by a visionary scientist, but researchers have now created a minuscule motor that could aid in the creation of microscopic nanomachines.

Scottish physicist James Clerk Maxwell first proposed his thought experiment of Maxwell's Demon in 1867. Scientists at the University of Edinburgh have made it a reality by "building a chemical analogy for a nanomachine," said David Leigh, a professor of chemistry at the University.

Leigh said it takes an incredibly tiny device whose parts consist of just 400 atoms. Nature uses nanomachines for everything from transporting vital moving muscles in the body and transferring nutrients through cells.

Scientists are trying to unravel the secrets of nanomachines and micromachines which works on a tiny scale. One nanomotor is a millionth of a metre, or about 10,000 times smaller than the diameter of a human hair.

"Molecular machines give life itself to occur at a molecular level. Our new motor mechanism is a key step forward to getting sort of thing with artificial molecular machines," Leigh said.

They call their traps molecular-sized particles as they move.

As Maxwell had predicted long ago, it has created a source of light. "While light has previously been used to move the particles directly, this is the first time that a system has been devised to trap molecules as they move in a specific direction with a chemical motor," said Leigh who reported the findings in the journal Nature.

In earlier study, he said his team showed that a nanomotor could move a drop up water uphill by 'pumping' water molecules. Although the movement was small, it was a big step in learning to make machines with tiny moving parts.

The new motor mechanism will enable scientists to do things that are much closer to what biological machines do.1

"Nanotechnology is already being used in cosmetics, computer chips and stain-resistant clothing. Leigh believes nanoscale science will have a much more significant i2mpact on society - comparable to the impact of electricity, the steam engine and the internet.

"It is going to be a different kind of progress, but like when stone-age man made his wheel or sucking him to protect the motorway," he said.

"It is a chemical analogy for a motor. Once we take molecular machines a step forward to the realization of the future world of nanotechnology," - matters

Illustration: Mahesh Sarkar

In a box on the right of the article

James Clerk Maxwell came up with a thought experiment in 1867 that apparently defies the Second Law of Thermodynamics.

In it, a room with a partition is initially at equilibrium (on average, the molecules are moving uniformly) - the room is at a fixed temperature.

The partition has a hole, which is guarded by a demon. The demon allows the faster than average particles to move from one partition to the other, while allowing the slower than average particles to move the opposite way.

Eventually, one partition will have mostly fast particles (hotter than the initial temperature) while the other will have mostly slow particles (colder), thus setting up a gradient and consequently energy.

UK researcher David Leigh has made devices which does something similar. He device doesn't contradict the laws of physics but can move particles in the system by shining light on it to make it work.

 





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