May 17, 2013
5G world of 2020
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Ericsson expects over 500 billion devices to be connected to the Internet by 2020 and diversity in the network is key to enabling all that activity. He also points out that the aim is for 10 Gbps transmission.
Cloned human embryonic stem cells
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Researchers have created embryonic stem cells from human embryos that they created in the lab themselves. The new cloned stem cells were generated in a couple of months versus 4 months for current methods.
Journal Cell - Human Embryonic Stem Cells Derived by Somatic Cell Nuclear Transfer
Highlights
* Cytoplasm of human oocytes reprograms transplanted somatic cell nuclei to pluripotency
* NT-ESCs can be efficiently derived from high-quality human oocytes
* Human NT-ESCs are similar to ESCs derived from fertilized embryos
Summary
Reprogramming somatic cells into pluripotent embryonic stem cells (ESCs) by somatic cell nuclear transfer (SCNT) has been envisioned as an approach for generating patient-matched nuclear transfer (NT)-ESCs for studies of disease mechanisms and for developing specific therapies. Past attempts to produce human NT-ESCs have failed secondary to early embryonic arrest of SCNT embryos. Here, we identified premature exit from meiosis in human oocytes and suboptimal activation as key factors that are responsible for these outcomes. Optimized SCNT approaches designed to circumvent these limitations allowed derivation of human NT-ESCs. When applied to premium quality human oocytes, NT-ESC lines were derived from as few as two oocytes. NT-ESCs displayed normal diploid karyotypes and inherited their nuclear genome exclusively from parental somatic cells. Gene expression and differentiation profiles in human NT-ESCs were similar to embryo-derived ESCs, suggesting efficient reprogramming of somatic cells to a pluripotent state.
Journal Cell - Human Embryonic Stem Cells Derived by Somatic Cell Nuclear Transfer
Highlights
* Cytoplasm of human oocytes reprograms transplanted somatic cell nuclei to pluripotency
* NT-ESCs can be efficiently derived from high-quality human oocytes
* Human NT-ESCs are similar to ESCs derived from fertilized embryos
Summary
Reprogramming somatic cells into pluripotent embryonic stem cells (ESCs) by somatic cell nuclear transfer (SCNT) has been envisioned as an approach for generating patient-matched nuclear transfer (NT)-ESCs for studies of disease mechanisms and for developing specific therapies. Past attempts to produce human NT-ESCs have failed secondary to early embryonic arrest of SCNT embryos. Here, we identified premature exit from meiosis in human oocytes and suboptimal activation as key factors that are responsible for these outcomes. Optimized SCNT approaches designed to circumvent these limitations allowed derivation of human NT-ESCs. When applied to premium quality human oocytes, NT-ESC lines were derived from as few as two oocytes. NT-ESCs displayed normal diploid karyotypes and inherited their nuclear genome exclusively from parental somatic cells. Gene expression and differentiation profiles in human NT-ESCs were similar to embryo-derived ESCs, suggesting efficient reprogramming of somatic cells to a pluripotent state.
Apollo astronaut Lovell working with commercial moon mission company Golden Spike
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Golden Spike, the first company planning to undertake human lunar expeditions for countries and corporations around the world, announced today that legendary astronaut and Apollo 13 Commander Jim Lovell has joined its Board of Advisors.
Capt. Lovell, a former Naval aviator and test pilot, is a recipient of the Congressional Space Medal of Honor and the
Presidential Medal of Freedom. Lovell is one of only 24 people to have flown to the Moon, was the first of only three people to fly to the Moon twice, and was the first person to fly in space four times.
Golden Spike aims to launch private citizens on round-trip visits to the moon starting in 2020 for a fee of $1.5 billion per flight. The firm, named after the final spike that joined the rails of the First Transcontinental Railroad in 1869, is pitching these lunar voyages to corporations, countries without their own space programs, and even wealthy individuals.
Capt. Lovell, a former Naval aviator and test pilot, is a recipient of the Congressional Space Medal of Honor and the
Presidential Medal of Freedom. Lovell is one of only 24 people to have flown to the Moon, was the first of only three people to fly to the Moon twice, and was the first person to fly in space four times.
Golden Spike aims to launch private citizens on round-trip visits to the moon starting in 2020 for a fee of $1.5 billion per flight. The firm, named after the final spike that joined the rails of the First Transcontinental Railroad in 1869, is pitching these lunar voyages to corporations, countries without their own space programs, and even wealthy individuals.
Optimally combining dynamical decoupling and quantum error correction
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Danny Lidar has said that he does not believe D-Wave Adiabatic quantum computer approach is scalable without error correction. He believes that the incorporation of error correction is a necessary condition in order to ever achieve a speedup with D-Wave’s machines. He does not believe D-Wave’s machines are any different from other types of quantum information processing in this regard. He hopes that in the future Dwave's designs will allow more flexibility in the incorporation of error correction.
Here is a paper by Danny from this year on quantum error correction.
Journal of Scientific Reports - Optimally combining dynamical decoupling and quantum error correction by Danny Lidar and Gerardo A. Paz-Silva
ABSTRACT - Quantum control and fault-tolerant quantum computing (FTQC) are two of the cornerstones on which the hope of realizing a large-scale quantum computer is pinned, yet only preliminary steps have been taken towards formalizing the interplay between them. Here we explore this interplay using the powerful strategy of dynamical decoupling (DD), and show how it can be seamlessly and optimally integrated with FTQC. To this end we show how to find the optimal decoupling generator set (DGS) for various subspaces relevant to FTQC, and how to simultaneously decouple them. We focus on stabilizer codes, which represent the largest contribution to the size of the DGS, showing that the intuitive choice comprising the stabilizers and logical operators of the code is in fact optimal, i.e., minimizes a natural cost function associated with the length of DD sequences. Our work brings hybrid DD-FTQC schemes, and their potentially considerable advantages, closer to realization.
Here is a paper by Danny from this year on quantum error correction.
Journal of Scientific Reports - Optimally combining dynamical decoupling and quantum error correction by Danny Lidar and Gerardo A. Paz-Silva
ABSTRACT - Quantum control and fault-tolerant quantum computing (FTQC) are two of the cornerstones on which the hope of realizing a large-scale quantum computer is pinned, yet only preliminary steps have been taken towards formalizing the interplay between them. Here we explore this interplay using the powerful strategy of dynamical decoupling (DD), and show how it can be seamlessly and optimally integrated with FTQC. To this end we show how to find the optimal decoupling generator set (DGS) for various subspaces relevant to FTQC, and how to simultaneously decouple them. We focus on stabilizer codes, which represent the largest contribution to the size of the DGS, showing that the intuitive choice comprising the stabilizers and logical operators of the code is in fact optimal, i.e., minimizes a natural cost function associated with the length of DD sequences. Our work brings hybrid DD-FTQC schemes, and their potentially considerable advantages, closer to realization.
Despite donating over $28 billion which saved over 6 million lives, Bill Gates is the richest person in the world with $76 billion
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Bill Gates is the richest person in the World again with a net worth of about $76 billion.
Gates has already given more than $28 billion, but said in his fifth annual letter for the Bill and Melinda Gates Foundation that the total amount invested is less important than precise measures of impact, like child mortality rates.
Bill Gates reduction of deaths from child mortality, Malaria and other diseases and problems of the poor has saved over 6 million lives.
Gates has already given more than $28 billion, but said in his fifth annual letter for the Bill and Melinda Gates Foundation that the total amount invested is less important than precise measures of impact, like child mortality rates.
Bill Gates reduction of deaths from child mortality, Malaria and other diseases and problems of the poor has saved over 6 million lives.
China steps up efforts to export nuclear reactors
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Three moves this week by China's state owned nuclear companies all demonstrated that China intends to capitalize on a growing global interest in nuclear power:
* State Nuclear Power Technology Corp (SNPTC) formed a joint venture with Westinghouse, the U.S. nuclear group owned by Japan’s Toshiba, to help sell Westinghouse-based nuclear reactors globally, Westinghouse said in a press release.
* China Guangdong Nuclear Corp (GGN), one of the country’s largest nuclear companies, changed its name to China General Nuclear Corp. to broaden its brand image outside of China and its home base of Guangdong, news agency Xinhua reported via China Daily.
* CGN, SNPTC and China National Nuclear Corp. pitched nuclear power to South Africa at an energy exhibition near Johannesburg.
* State Nuclear Power Technology Corp (SNPTC) formed a joint venture with Westinghouse, the U.S. nuclear group owned by Japan’s Toshiba, to help sell Westinghouse-based nuclear reactors globally, Westinghouse said in a press release.
* China Guangdong Nuclear Corp (GGN), one of the country’s largest nuclear companies, changed its name to China General Nuclear Corp. to broaden its brand image outside of China and its home base of Guangdong, news agency Xinhua reported via China Daily.
* CGN, SNPTC and China National Nuclear Corp. pitched nuclear power to South Africa at an energy exhibition near Johannesburg.
Elon Musk worth about $6.5 billion as Solar City, Tesla and Spacex are on a roll
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Elon Musk has 20.8 million shares of Solar City. Solar City stock is up to $45 per share. Elon's Solar City shares are worth about $936 million.
Elon Musk has 27 million shares of Tesla Motors. Tesla Motor shares are about $91 per share. Elon's Tesla shares are worth about $2.4 billion.
Elon Musk owns about 65% of Spacex which is estimated to be worth $5 billion. This would put Elon's shares at $3.2 billion.
Elon Musk has 27 million shares of Tesla Motors. Tesla Motor shares are about $91 per share. Elon's Tesla shares are worth about $2.4 billion.
Elon Musk owns about 65% of Spacex which is estimated to be worth $5 billion. This would put Elon's shares at $3.2 billion.
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