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Science Day 2012
             Friday, December 28, 2012
                           Govinda Bhisetti, Ph. D.
                           Lexington, MA 02421
                           govindarb@yahoo.com



        9:30 AM    Arrival
10:00  10:15 AM   Introduction
10:15  10:30 PM   Tribute to Dr. Yellapragada SubbaRow
10:30  12:30 PM   2012 Nobel Prizes
12:30  1:30 PM    Lunch
2:00  3:30 PM     Breakthroughs in Science 2012
3:30  5:30 PM     Movie


12/28/2012         Science Day Govinda Bhisetti           1
Dr. Yellapragada SubbaRow
             Science Day is dedicated to Dr. SubbaRow

Who arrived in Boston 90 years ago and went on to make
breakthrough discoveries in Biochemistry and Medicine.

He discovered ATP, phosphocreatin, methotrexate (anti-
folate), hetrazan and led the discovery of the first antibiotic.
http://en.wikipedia.org/wiki/Yellapragada_Subbarao

A short video:
http://www.youtube.com/watch?v=Mbdiut6JujA


12/28/2012               Science Day Govinda Bhisetti          2
Nobel Prize


"The whole of my remaining realizable estate shall be dealt with in the following way: The
capital shall be invested by my executors in safe securities and shall constitute a fund, the
interest on which shall be annually distributed in the form of prizes to those who, during the
preceding year, shall have conferred the greatest benefit on mankind ... ; one part to the person
who shall have made the most important discovery within the domain of physiology or
medicine; ... The prizes for ... shall be awarded by ... that for physiology or medicine by the
Carolinska Institute in Stockholm; ... "

Alfred Nobel's will, signed in Paris on 27 November 1895. The statutes of the Nobel
Foundation, which were officially approved by the Swedish Government on 29 June 1900.


This year's monetary award will be 8 million Swedish kronor (SEK) - about $1.2
million. This represents a drop of 20%, compared with last year, from 10 million
SEK, and is due to the turbulence that has hit financial markets.

  12/28/2012                      Science Day Govinda Bhisetti                              3
How are the Nobel Laureates Selected?




12/28/2012      Science Day Govinda Bhisetti   4
Prize Announcement Schedule
≒ Monday, October 8, 2012                          PHYSIOLOGY or MEDICINE

≒ Tuesday, October 9, 2012                         PHYSICS

≒ Wednesday, October 10, 2011                      CHEMISTRY
    	

≒ Thursday, October 11, 2011                       LITERATURE
	

≒ Friday, October 12, 2010                         PEACE
≒
≒ Monday, October 15, 2010                           ECONOMICS
    	

 	

    	

      	

   	

                  	

	

	

	

Prizes were awarded on December 10, 2012	





      12/28/2012                  Science Day Govinda Bhisetti               5
2012 Nobel Prize winners




12/28/2012      Science Day Govinda Bhisetti   6
Mo Yan
  "who with hallucinatory realism merges folk tales, history
                   and the contemporary

                               Has written 11 novels, including The
                               Garlic Ballads, Red Sorghum Clan,
                               The Republic of Wine, Big Breasts
                               and Wide Hips; Life and Death are
                               Wearing Me Out; Frog

                               Produced more than 30 long stories,
                               including Shifu, You'll Do Anything for
                               a Laugh

                               Has also written more than 80 short
                               stories



12/28/2012           Science Day Govinda Bhisetti                        7
Peace Nobel Prize




                      European Union (EU)
       "for over six decades contributed to the advancement of peace
       and reconciliation, democracy and human rights in Europe

12/28/2012                 Science Day Govinda Bhisetti                8
Economic Sciences
              Alvin E. Roth and Lloyd S. Shapley
 "for the theory of stable allocations and the practice of market design"




Shapley used game theory to study matching models, and Roth built on
them to make real-world changes to existing markets, including school
choice and organ transplants, the academy said.

12/28/2012               Science Day Govinda Bhisetti                   9
PHYSIOLOGY or MEDICINE
                       Sir John Gurdon and Shinya Yamanaka
     "for revealing that mature cells can be reverted into primitive cells"




        Ralph M. Steinman
        Rockefeller University, NY

      http://www.pbs.org/newshour/bb/health/july-dec12/nobel_10-08.html

12/28/2012                       Science Day Govinda Bhisetti                 10
Science Report on Sir Gurdon




         Nobel Physics interview:
         http://www.youtube.com/watch?v=i2lU4uiOPUQ

12/28/2012                Science Day Govinda Bhisetti   11
Stem Cells and its Potential Uses




             Nobel Physics interview:
             http://www.youtube.com/watch?v=i2lU4uiOPUQ


12/28/2012              Science Day Govinda Bhisetti      12
Adult Cells and induced iPSC                                                       




Rewind,Reprogram and Replace
First one converts the somatic cell into pluripotent cell, the second one corrects the
genetic defect and the third one turns the cells into a new cell type that can replace the
diseased cell type in the patient.
12/28/2012                      Science Day Govinda Bhisetti                                 13
CHEMISTRY
     Robert J. Lefkowitz and Brian K. Kobilka
              "for studies of G-protein-coupled receptors"

                                         There are around 800 known human
                                         GPCRs. But before Lefkowitz identified
                                         them and, together with Kobilka,
                                         determined how they work, nobody
                                         even knew they existed.

                                         GPCRs help us to sense light, flavour
                                         and odour. They are also responsible for
                                         the bodys reactions to chemicals such
                                         as adrenaline, histamine, dopamine and
                                         serotonin.

  Fight or Flight: http://www.youtube.com/watch?v=m2GywoS77qc
  Epinephrene : http://www.youtube.com/watch?v=ejq99wLEMTw

12/28/2012               Science Day Govinda Bhisetti                       14
G-Protein Coupled Receptors




                  G-protein coupled receptors sit in cell membranes. Its
                  their job to tell the inside of the cell what is going on
                  outside. Thanks to the work of Lefkowitz and Kobilka,
                  we know about what they are, how they are built and
                  how they work.
                  A new molecular portrait shows how the activation of a
                  hormone receptor (green) by a small signalling molecule
                  (top) causes a dramatic structural shift in its associated
                  G protein (yellow, blue and mauve)
                  GPCRs in one Minute
                  http://www.youtube.com/watch?v=696maX-V5AE
                  http://www.periodicvideos.com/videos/feature_nobel_prize_2012.htm

12/28/2012   Science Day Govinda Bhisetti                                         15
永堰額皆鴛遺皆
                                        
                     Sege Haroche and David Wineland
                                      
 "for ground-breaking experimental methods that enable measuring and
 manipulation of individual quantum systems




             Sege Harioche                        David Wineland


12/28/2012                   Science Day Govinda Bhisetti              16
Ervin Schrodingers Cat (1935)




       http://www.youtube.com/watch?v=CrxqTtiWxs4

12/28/2012               Science Day Govinda Bhisetti   17
Fundamental quantum particles
                                       Schr旦dinger (1952):

                                       We never experiment with just one
                                       electron or atom or (small) molecule. In
                                       thought experiments, we sometimes
                                       assume that we do; this invariably
                                       entails ridiculous consequences

                                       2012 laureates made it possible to enter
                                       this world!

                                       * precise control + isolation from
                                       environment
                                       * simple small systems

How do we see Light?
http://www.youtube.com/watch?v=2dRr-fnPCwM
12/28/2012              Science Day Govinda Bhisetti                        18
Quantum Optics
 This years Nobel Prize in physics is about the interaction between light
 and matter.

 The Nobel Laureates have opened the door to a new era of
 experimentation with quantum physics by demonstrating the direct
 observation of individual quantum particles without destroying them.

 The new methods allow them to examine, control and count the particles,
 which were previously thought inaccessible for direct observation. .

 David Wineland traps electrically charged atoms, or ions, controlling and
 measuring them with light, or photons.

 Serge Haroche takes the opposite approach: he controls and measures
 trapped photons, or particles of light, by sending atoms through a trap.

 http://www.youtube.com/watch?v=UmxpUFxHlGg
12/28/2012                 Science Day Govinda Bhisetti                       19
12/28/2012   Science Day Govinda Bhisetti   20
Break




12/28/2012   Science Day Govinda Bhisetti   21
Breakthrough of the Year 2012

                                       Exotic particles made headlines again
                                       and again in 2012, making it no
                                       surprise that the breakthrough of the
                                       year is a big physics finding:
                                       confirmation of the existence of the
                                       Higgs Boson. Hypothesized more than
                                       40 years ago, the elusive particle
                                       completes the standard model of
                                       physics, and is arguably the key to the
                                       explanation of how other fundamental
                                       particles obtain mass.



         23 December 2011

12/28/2012           Science Day Govinda Bhisetti                        22
2012 Science Breakthroughs
       1. The Higgs Boson detected
       2. A Home Run for Ancient DNA
       3. Genomic Cruise Missiles
       4. Crash Project Opens a Door in Neutrino Physics
       5. Genomics Beyond Genes
       6. Scary Engineering Tames Martian Terror
       7. First Protein Structure From an X-ray Laser
       8. Brain-Machine Interfaces Start to Get a Grip
       9. Majorana Fermions, Quasi-Here at Last
       10. Making Eggs from Stem Cells


12/28/2012                Science Day Govinda Bhisetti     23
10. Making Eggs from Stem Cells
 Fertilized lab-derived egg cells yielded embryosand live mice



Japanese scientists created
viable egg cells using embryonic
stem cells from adult mice. The
breakthrough raises the possibility
that women who are unable to
produce eggs naturally could
have them created in a test tube
from their own cells and then
implanted in their body.




  12/28/2012                  Science Day Govinda Bhisetti        24
9. Majorana Fermions


                                            Scientists confirmed the
                                            existence of Majorana
                                            fermions, particles that can
                                            act as their own antimatter
                                            and destroy themselves.
                                            Scientists believe that qubits
                                            made of Majorana fermions
                                            could be used to more
                                            efficiently store and process
                                            data than the bits currently
                                            used in digital computers.




12/28/2012   Science Day Govinda Bhisetti                              25
8. Brain-Machine Interfaces Get a Grip


                                             A brain-machine interface
                                              that allows paralysed
                                              humans to move a
                                              mechanical arm with their
                                              minds and perform
                                              movements in three
                                              dimensions. The
                                              experimental technology
                                              is promising for patients
                                              paralyzed by strokes and
                                              spinal injuries.




12/28/2012    Science Day Govinda Bhisetti                        26
7. First Protein Structure from X-ray Laser
                                               Use of an X-ray laser, which
                                               shines one billion times
                                               brighter than traditional
                                               synchroton sources,
                                               allowed scientists to
                                               determine the structure of a
                                               protein involved in the
                                               transmission of African
                                               sleeping sickness.

                                               The advance demonstrated
                                               the potential of X-ray lasers
                                               to decipher proteins that
                                               conventional X-ray sources
                                               cannot.




 12/28/2012     Science Day Govinda Bhisetti                             27
6. Scary Engineering Tames Martian Terror:
Landing Curiosity
                                              NASA engineers landed the
                                              3.3 ton Mars Curiosity rover
                                              on the Red Planet by using
                                              an innovative sky crane
                                              landing system that dangled
                                              the vehicle, with its wheels
                                              out, at the end of three
                                              cables.

                                              The flawless landing
                                              reassured planners that
                                              NASA could someday land
                                              a second mission near an
                                              earlier rover to pick up
                                              samples the rover collected
                                              and return them to Earth.


 12/28/2012    Science Day Govinda Bhisetti                           28
5. Genomics Beyond Genes
                                         A decade long, $288 million study
                                         reported this year in more than 30
                                         papers showed the human genome to
                                         be quite a bustling place, biochemically
                                         speaking. The workcalled the
                                         Encyclopedia of DNA Elements
                                         (ENCODE)builds on the Human
                                         Genome Project, which deciphered the
                                         order of the bases that are our DNAs
                                         building blocks and found that less than
                                         2% of those bases de鍖ned genes.
                                         The ENCODE Project, which showed
                                         that 80 percent of the human genome is
                                         active and helps turn genes on and off.
                                         The new information could help
                                         scientists understand genetic risk
                                         factors for diseases.

                                         ENCODE gives labels and functions to
                                         much of the DNA between genes,
                                         emphasizing the non-coding and
                                         regulatory regions of our genomes.
 12/28/2012   Science Day Govinda Bhisetti                                 29
4. Crash Project Opens a Door in
Neutriono Physics
                                            That was fast!
                                            Construction of Chinas Daya
                                            Bay Reactor Neutrino
                                            Experiment began in 2007.
                                            With 2 months worth of data,
                                            it scooped competitors in
                                            Japan, France, Korea, and
                                            the United States.
                                            Researchers discovered the
                                            final unknown parameter of a
                                            model describing how sub-
                                            atomic particles. neutrinos
                                            change as they travel at near-
                                            light speed. The results
                                            suggest that neutrino physics
                                            may someday help
                                            researchers explain why the
                                            universe contains so much
                                            matter and so little antimatter.

12/28/2012   Science Day Govinda Bhisetti                              30
3. Genetic Cruise Missile (TALENS)
                                                                              Genome engineers got
                                                                              their hands on powerful
                                                                              new tools that put the
                                                                              modi鍖cation of DNA within
                                                                              easy reach of biologists
                                                                              studying a variety of
                                                                              organisms, including yeast
                                                                              and humans.

                                                                              The new tool could be as
                                                                              effective, and even
                                                                              cheaper, than current
                                                                              gene-targeting techniques
Transcription Activator-Like Effector Nucleases (TALENs) are engineered       and could let researchers
restriction enzymes generated by fusing the TAL effector DNA binding          focus on specific roles for
domain to a DNA cleavage domain. The typical restriction endonuclease         genes and mutations in
used is FokI, which has to dimerize in order to cut DNA. For TALENs, two      healthy and sick people.
engineered TAL effectors are designed that bind the targeted DNA
sequence on either side of the chosen cut site in the genome. Errors in DNA
repair at the site of cleavage lead to deletions and insertions, and
permanent alteration of the targeted locus.
  12/28/2012                         Science Day Govinda Bhisetti                                  31
2. A Home Run for Ancient DNA
                                             Postdoc Matthias Meyer at the
                                                Max Planck Institute fused a
                                                new technique to sequence
                                                the complete genome of an
                                                enigmatic group of humans
                                                called the Denisovans, based
                                                on a tiny sample teased from
                                                a finger bone about 80,000
                                                years old found in a cave in
                                                Siberia. Nothing was known
                                                about the Denisovans other
                                                than that they were
                                                contemporaries of the
                                                Neanderthals, another
                                                cousin species of modern
                                                humans.
                                             Using a novel technique for
                                                sequencing degraded DNA,
                                                researchers sequenced the
                                                Denisovan genome,
                                                shedding light on early
                                                human history.
 12/28/2012   Science Day Govinda Bhisetti                             32
1. Breakthrough of the Year: Higgs Boson
                                                    That feat marks an intellectual,
                                                    technological, and organizational
                                                    triumph. To produce the Higgs,
                                                    researchers at the European particle
                                                    physics laboratory, CERN, near
                                                    Geneva, built the $5.5 billion, 27-
                                                    kilometer-long LHC. To spot the
                                                    Higgs, they built gargantuan particle
                                                    detectorsATLAS, which is 25
                                                    meters tall and 45 meters long, and
                                                    CMS, which weighs 12,500 tonnes.
                                                    The ATLAS and CMS teams boast
                                                    3000 members each. More than 100
                                                    nations have a hand in the LHC.
In this particle collision, a Higgs boson decays
into two electrons and two positrons (red).
http://podcasts.aaas.org/science_podcast/SciencePodcast_111223.mp3
Higgs Boson: http://www.youtube.com/watch?v=RIg1Vh7uPyw
http://www.sciencemag.org/content/338/6114/1524.full
 12/28/2012                    Science Day Govinda Bhisetti                         33
Breakthrough of the Year 2012


                             Exotic particles made headlines again and again in 2012,
                             making it no surprise that the breakthrough of the year is
                             a big physics finding: confirmation of the existence of the
                             Higgs Boson. Hypothesized more than 40 years ago, the
                             elusive particle completes the standard model of physics,
                             and is arguably the key to the explanation of how other
                             fundamental particles obtain mass. In this video, Science
                             News Writer Adrian Cho talks about this momentous
                             finding and what physicists will do next.

                             http://video.sciencemag.org/SciOriginals/
                             2047901580001/1/@btoy2012




         23 December 2011

12/28/2012           Science Day Govinda Bhisetti                                          34

More Related Content

Science Day 2012

  • 1. Science Day 2012 Friday, December 28, 2012 Govinda Bhisetti, Ph. D. Lexington, MA 02421 govindarb@yahoo.com 9:30 AM Arrival 10:00 10:15 AM Introduction 10:15 10:30 PM Tribute to Dr. Yellapragada SubbaRow 10:30 12:30 PM 2012 Nobel Prizes 12:30 1:30 PM Lunch 2:00 3:30 PM Breakthroughs in Science 2012 3:30 5:30 PM Movie 12/28/2012 Science Day Govinda Bhisetti 1
  • 2. Dr. Yellapragada SubbaRow Science Day is dedicated to Dr. SubbaRow Who arrived in Boston 90 years ago and went on to make breakthrough discoveries in Biochemistry and Medicine. He discovered ATP, phosphocreatin, methotrexate (anti- folate), hetrazan and led the discovery of the first antibiotic. http://en.wikipedia.org/wiki/Yellapragada_Subbarao A short video: http://www.youtube.com/watch?v=Mbdiut6JujA 12/28/2012 Science Day Govinda Bhisetti 2
  • 3. Nobel Prize "The whole of my remaining realizable estate shall be dealt with in the following way: The capital shall be invested by my executors in safe securities and shall constitute a fund, the interest on which shall be annually distributed in the form of prizes to those who, during the preceding year, shall have conferred the greatest benefit on mankind ... ; one part to the person who shall have made the most important discovery within the domain of physiology or medicine; ... The prizes for ... shall be awarded by ... that for physiology or medicine by the Carolinska Institute in Stockholm; ... " Alfred Nobel's will, signed in Paris on 27 November 1895. The statutes of the Nobel Foundation, which were officially approved by the Swedish Government on 29 June 1900. This year's monetary award will be 8 million Swedish kronor (SEK) - about $1.2 million. This represents a drop of 20%, compared with last year, from 10 million SEK, and is due to the turbulence that has hit financial markets. 12/28/2012 Science Day Govinda Bhisetti 3
  • 4. How are the Nobel Laureates Selected? 12/28/2012 Science Day Govinda Bhisetti 4
  • 5. Prize Announcement Schedule ≒ Monday, October 8, 2012 PHYSIOLOGY or MEDICINE ≒ Tuesday, October 9, 2012 PHYSICS ≒ Wednesday, October 10, 2011 CHEMISTRY ≒ Thursday, October 11, 2011 LITERATURE ≒ Friday, October 12, 2010 PEACE ≒ ≒ Monday, October 15, 2010 ECONOMICS Prizes were awarded on December 10, 2012 12/28/2012 Science Day Govinda Bhisetti 5
  • 6. 2012 Nobel Prize winners 12/28/2012 Science Day Govinda Bhisetti 6
  • 7. Mo Yan "who with hallucinatory realism merges folk tales, history and the contemporary Has written 11 novels, including The Garlic Ballads, Red Sorghum Clan, The Republic of Wine, Big Breasts and Wide Hips; Life and Death are Wearing Me Out; Frog Produced more than 30 long stories, including Shifu, You'll Do Anything for a Laugh Has also written more than 80 short stories 12/28/2012 Science Day Govinda Bhisetti 7
  • 8. Peace Nobel Prize European Union (EU) "for over six decades contributed to the advancement of peace and reconciliation, democracy and human rights in Europe 12/28/2012 Science Day Govinda Bhisetti 8
  • 9. Economic Sciences Alvin E. Roth and Lloyd S. Shapley "for the theory of stable allocations and the practice of market design" Shapley used game theory to study matching models, and Roth built on them to make real-world changes to existing markets, including school choice and organ transplants, the academy said. 12/28/2012 Science Day Govinda Bhisetti 9
  • 10. PHYSIOLOGY or MEDICINE Sir John Gurdon and Shinya Yamanaka "for revealing that mature cells can be reverted into primitive cells" Ralph M. Steinman Rockefeller University, NY http://www.pbs.org/newshour/bb/health/july-dec12/nobel_10-08.html 12/28/2012 Science Day Govinda Bhisetti 10
  • 11. Science Report on Sir Gurdon Nobel Physics interview: http://www.youtube.com/watch?v=i2lU4uiOPUQ 12/28/2012 Science Day Govinda Bhisetti 11
  • 12. Stem Cells and its Potential Uses Nobel Physics interview: http://www.youtube.com/watch?v=i2lU4uiOPUQ 12/28/2012 Science Day Govinda Bhisetti 12
  • 13. Adult Cells and induced iPSC Rewind,Reprogram and Replace First one converts the somatic cell into pluripotent cell, the second one corrects the genetic defect and the third one turns the cells into a new cell type that can replace the diseased cell type in the patient. 12/28/2012 Science Day Govinda Bhisetti 13
  • 14. CHEMISTRY Robert J. Lefkowitz and Brian K. Kobilka "for studies of G-protein-coupled receptors" There are around 800 known human GPCRs. But before Lefkowitz identified them and, together with Kobilka, determined how they work, nobody even knew they existed. GPCRs help us to sense light, flavour and odour. They are also responsible for the bodys reactions to chemicals such as adrenaline, histamine, dopamine and serotonin. Fight or Flight: http://www.youtube.com/watch?v=m2GywoS77qc Epinephrene : http://www.youtube.com/watch?v=ejq99wLEMTw 12/28/2012 Science Day Govinda Bhisetti 14
  • 15. G-Protein Coupled Receptors G-protein coupled receptors sit in cell membranes. Its their job to tell the inside of the cell what is going on outside. Thanks to the work of Lefkowitz and Kobilka, we know about what they are, how they are built and how they work. A new molecular portrait shows how the activation of a hormone receptor (green) by a small signalling molecule (top) causes a dramatic structural shift in its associated G protein (yellow, blue and mauve) GPCRs in one Minute http://www.youtube.com/watch?v=696maX-V5AE http://www.periodicvideos.com/videos/feature_nobel_prize_2012.htm 12/28/2012 Science Day Govinda Bhisetti 15
  • 16. 永堰額皆鴛遺皆 Sege Haroche and David Wineland "for ground-breaking experimental methods that enable measuring and manipulation of individual quantum systems Sege Harioche David Wineland 12/28/2012 Science Day Govinda Bhisetti 16
  • 17. Ervin Schrodingers Cat (1935) http://www.youtube.com/watch?v=CrxqTtiWxs4 12/28/2012 Science Day Govinda Bhisetti 17
  • 18. Fundamental quantum particles Schr旦dinger (1952): We never experiment with just one electron or atom or (small) molecule. In thought experiments, we sometimes assume that we do; this invariably entails ridiculous consequences 2012 laureates made it possible to enter this world! * precise control + isolation from environment * simple small systems How do we see Light? http://www.youtube.com/watch?v=2dRr-fnPCwM 12/28/2012 Science Day Govinda Bhisetti 18
  • 19. Quantum Optics This years Nobel Prize in physics is about the interaction between light and matter. The Nobel Laureates have opened the door to a new era of experimentation with quantum physics by demonstrating the direct observation of individual quantum particles without destroying them. The new methods allow them to examine, control and count the particles, which were previously thought inaccessible for direct observation. . David Wineland traps electrically charged atoms, or ions, controlling and measuring them with light, or photons. Serge Haroche takes the opposite approach: he controls and measures trapped photons, or particles of light, by sending atoms through a trap. http://www.youtube.com/watch?v=UmxpUFxHlGg 12/28/2012 Science Day Govinda Bhisetti 19
  • 20. 12/28/2012 Science Day Govinda Bhisetti 20
  • 21. Break 12/28/2012 Science Day Govinda Bhisetti 21
  • 22. Breakthrough of the Year 2012 Exotic particles made headlines again and again in 2012, making it no surprise that the breakthrough of the year is a big physics finding: confirmation of the existence of the Higgs Boson. Hypothesized more than 40 years ago, the elusive particle completes the standard model of physics, and is arguably the key to the explanation of how other fundamental particles obtain mass. 23 December 2011 12/28/2012 Science Day Govinda Bhisetti 22
  • 23. 2012 Science Breakthroughs 1. The Higgs Boson detected 2. A Home Run for Ancient DNA 3. Genomic Cruise Missiles 4. Crash Project Opens a Door in Neutrino Physics 5. Genomics Beyond Genes 6. Scary Engineering Tames Martian Terror 7. First Protein Structure From an X-ray Laser 8. Brain-Machine Interfaces Start to Get a Grip 9. Majorana Fermions, Quasi-Here at Last 10. Making Eggs from Stem Cells 12/28/2012 Science Day Govinda Bhisetti 23
  • 24. 10. Making Eggs from Stem Cells Fertilized lab-derived egg cells yielded embryosand live mice Japanese scientists created viable egg cells using embryonic stem cells from adult mice. The breakthrough raises the possibility that women who are unable to produce eggs naturally could have them created in a test tube from their own cells and then implanted in their body. 12/28/2012 Science Day Govinda Bhisetti 24
  • 25. 9. Majorana Fermions Scientists confirmed the existence of Majorana fermions, particles that can act as their own antimatter and destroy themselves. Scientists believe that qubits made of Majorana fermions could be used to more efficiently store and process data than the bits currently used in digital computers. 12/28/2012 Science Day Govinda Bhisetti 25
  • 26. 8. Brain-Machine Interfaces Get a Grip A brain-machine interface that allows paralysed humans to move a mechanical arm with their minds and perform movements in three dimensions. The experimental technology is promising for patients paralyzed by strokes and spinal injuries. 12/28/2012 Science Day Govinda Bhisetti 26
  • 27. 7. First Protein Structure from X-ray Laser Use of an X-ray laser, which shines one billion times brighter than traditional synchroton sources, allowed scientists to determine the structure of a protein involved in the transmission of African sleeping sickness. The advance demonstrated the potential of X-ray lasers to decipher proteins that conventional X-ray sources cannot. 12/28/2012 Science Day Govinda Bhisetti 27
  • 28. 6. Scary Engineering Tames Martian Terror: Landing Curiosity NASA engineers landed the 3.3 ton Mars Curiosity rover on the Red Planet by using an innovative sky crane landing system that dangled the vehicle, with its wheels out, at the end of three cables. The flawless landing reassured planners that NASA could someday land a second mission near an earlier rover to pick up samples the rover collected and return them to Earth. 12/28/2012 Science Day Govinda Bhisetti 28
  • 29. 5. Genomics Beyond Genes A decade long, $288 million study reported this year in more than 30 papers showed the human genome to be quite a bustling place, biochemically speaking. The workcalled the Encyclopedia of DNA Elements (ENCODE)builds on the Human Genome Project, which deciphered the order of the bases that are our DNAs building blocks and found that less than 2% of those bases de鍖ned genes. The ENCODE Project, which showed that 80 percent of the human genome is active and helps turn genes on and off. The new information could help scientists understand genetic risk factors for diseases. ENCODE gives labels and functions to much of the DNA between genes, emphasizing the non-coding and regulatory regions of our genomes. 12/28/2012 Science Day Govinda Bhisetti 29
  • 30. 4. Crash Project Opens a Door in Neutriono Physics That was fast! Construction of Chinas Daya Bay Reactor Neutrino Experiment began in 2007. With 2 months worth of data, it scooped competitors in Japan, France, Korea, and the United States. Researchers discovered the final unknown parameter of a model describing how sub- atomic particles. neutrinos change as they travel at near- light speed. The results suggest that neutrino physics may someday help researchers explain why the universe contains so much matter and so little antimatter. 12/28/2012 Science Day Govinda Bhisetti 30
  • 31. 3. Genetic Cruise Missile (TALENS) Genome engineers got their hands on powerful new tools that put the modi鍖cation of DNA within easy reach of biologists studying a variety of organisms, including yeast and humans. The new tool could be as effective, and even cheaper, than current gene-targeting techniques Transcription Activator-Like Effector Nucleases (TALENs) are engineered and could let researchers restriction enzymes generated by fusing the TAL effector DNA binding focus on specific roles for domain to a DNA cleavage domain. The typical restriction endonuclease genes and mutations in used is FokI, which has to dimerize in order to cut DNA. For TALENs, two healthy and sick people. engineered TAL effectors are designed that bind the targeted DNA sequence on either side of the chosen cut site in the genome. Errors in DNA repair at the site of cleavage lead to deletions and insertions, and permanent alteration of the targeted locus. 12/28/2012 Science Day Govinda Bhisetti 31
  • 32. 2. A Home Run for Ancient DNA Postdoc Matthias Meyer at the Max Planck Institute fused a new technique to sequence the complete genome of an enigmatic group of humans called the Denisovans, based on a tiny sample teased from a finger bone about 80,000 years old found in a cave in Siberia. Nothing was known about the Denisovans other than that they were contemporaries of the Neanderthals, another cousin species of modern humans. Using a novel technique for sequencing degraded DNA, researchers sequenced the Denisovan genome, shedding light on early human history. 12/28/2012 Science Day Govinda Bhisetti 32
  • 33. 1. Breakthrough of the Year: Higgs Boson That feat marks an intellectual, technological, and organizational triumph. To produce the Higgs, researchers at the European particle physics laboratory, CERN, near Geneva, built the $5.5 billion, 27- kilometer-long LHC. To spot the Higgs, they built gargantuan particle detectorsATLAS, which is 25 meters tall and 45 meters long, and CMS, which weighs 12,500 tonnes. The ATLAS and CMS teams boast 3000 members each. More than 100 nations have a hand in the LHC. In this particle collision, a Higgs boson decays into two electrons and two positrons (red). http://podcasts.aaas.org/science_podcast/SciencePodcast_111223.mp3 Higgs Boson: http://www.youtube.com/watch?v=RIg1Vh7uPyw http://www.sciencemag.org/content/338/6114/1524.full 12/28/2012 Science Day Govinda Bhisetti 33
  • 34. Breakthrough of the Year 2012 Exotic particles made headlines again and again in 2012, making it no surprise that the breakthrough of the year is a big physics finding: confirmation of the existence of the Higgs Boson. Hypothesized more than 40 years ago, the elusive particle completes the standard model of physics, and is arguably the key to the explanation of how other fundamental particles obtain mass. In this video, Science News Writer Adrian Cho talks about this momentous finding and what physicists will do next. http://video.sciencemag.org/SciOriginals/ 2047901580001/1/@btoy2012 23 December 2011 12/28/2012 Science Day Govinda Bhisetti 34