Tag Archives: US

Measurably fewer nanoparticles in São Paulo’s (Brazil) air after ethanol use

An Aug. 28, 2017 news item on Nanotechnology Now features news about nanoparticles and the environment in São Paulo, Brazil,

When ethanol prices at the pump rise for whatever reason, it becomes economically advantageous for drivers of dual-fuel vehicles to fill up with gasoline. However, the health of the entire population pays a high price: substitution of gasoline for ethanol leads to a 30% increase in the atmospheric concentration of ultrafine particulate matter, which consists of particles with a diameter of less than 50 nanometers (nm).

An Aug. 23, 2017 Fundação de Amparo à Pesquisa do Estado de São Paulo (The São Paulo Research Foundation [FAPESP]) press release, which originated the news item, explains further,

The phenomenon was detected in São Paulo City, Brazil, in a study supported by FAPESP and published in July 2017 in Nature Communications.

“These polluting nanoparticles are so tiny that they behave like gas molecules. When inhaled, they can penetrate the respiratory system’s defensive barriers and reach the pulmonary alveoli, so that potentially toxic substances enter the bloodstream and may increase the incidence of respiratory and cardiovascular problems,” said Paulo Artaxo, Full Professor at the University of São Paulo’s Physics Institute (IF-USP) and a co-author of the study.

Levels of ultrafine particulate matter in the atmosphere are neither monitored nor regulated by environmental agencies not only in Brazil but practically anywhere in the world, according to Artaxo. The São Paulo State Environmental Corporation (CETESB), for example, routinely monitors only solid particles with diameters of 10,000 nm (PM10) and 2,500 nm (PM2.5) – as well as other gaseous pollutants such as ozone (O3), carbon monoxide (CO) and nitrogen dioxide (NO2).

“Between 75% and 80% of the mass of the nanoparticles we measured in this study corresponds to organic compounds emitted by motor vehicles – carbon in different chemical forms. What these compounds are exactly and how they affect health are questions that require further research,” Artaxo said.

He added that a consensus is forming in the United States and Europe based on recent research indicating that these emissions are a potential health hazard and should be regulated. Several US states, such as California, have laws requiring a 20%-30% ethanol blend in gasoline, which also helps reduce emissions of ultrafine particulate matter.


The data analyzed in the study were collected during the period of January-May 2011, when ethanol prices fluctuated sharply compared with gasoline prices, owing to macroeconomic factors such as variations in the international price of sugar (Brazilian ethanol is made from sugarcane).

Collection was performed at the top of a ten-story building belonging to IF-USP in the western part of São Paulo City. According to Artaxo, the site was chosen because it is relatively distant from the main traffic thoroughfares so that the aerosols there are “older” in the sense that they have already interacted with other substances present in the atmosphere.

“Generally speaking, the pollution we inhale every day at home or at work isn’t what comes out of vehicular exhaust pipes but particles already processed in the atmosphere,” he explained. “For this reason, we chose a site that isn’t directly impacted by primary vehicle emissions.”

The study was conducted during Joel Ferreira de Brito’s postdoctoral research, which Artaxo supervised. The model used to analyze the data was developed by Brazilian economist Alberto Salvo, a professor at the National University of Singapore and first author of the article. Franz Geiger, a chemist at Northwestern University in the US, also collaborated.

“We adapted a sophisticated statistical model originally developed for economic analysis and used here for the first time to analyze the chemistry of atmospheric nanoparticles,” Artaxo said. “The main strength of this tool is that it can work with a large number of variables, such as the presence or absence of rainfall, wind direction, traffic intensity, and levels of ozone, carbon monoxide and other pollutants.”

Analyses were performed before, during and after a sharp fluctuation in ethanol prices leading consumers to switch motor fuels in São Paulo City. While no significant changes were detected in levels of inhalable fine particulate matter (PM2.5 and PM10), the study proved in a real, day-to-day situation that choosing ethanol reduces emissions of ultrafine particles. To date, this phenomenon had only been observed in the laboratory.

“These results reinforce the need for public policies to encourage the use of biofuels, as they clearly show that the public lose in health what they save at the pump when opting for gasoline,” Artaxo said.

In São Paulo, a city with 7 million motor vehicles and the largest urban fleet of flexible-fuel cars, it would be feasible to run all buses on biofuel. “We have the technology for this in Brazil – and at a competitive price,” he said.

The fact that the city’s bus fleet still depends on diesel, Artaxo warned, creates an even worse health hazard in the shape of emissions of black carbon, one of the main components of soot and a pollutant that contributes to global warming. Alongside electricity generation, the transportation sector is the largest emitter of pollutants produced by the burning of fossil fuels.

For Artaxo, incentives for electric, hybrid or biofuel vehicles are vital to reduce greenhouse gas emissions. “By incentivizing biofuels, we could solve several problems at once,” he said. “We could combat climate change, reduce harm to health and foster advances in automotive technology by offering a stimulus for auto makers to develop more economical and efficient cars fueled by ethanol.”

Here’s a link to and a citation for the paper,

Reduced ultrafine particle levels in São Paulo’s atmosphere during shifts from gasoline to ethanol use by Alberto Salvo, Joel Brito, Paulo Artaxo, & Franz M. Geiger. Nature Communications 8, Article number: 77 (2017) doi:10.1038/s41467-017-00041-5 Published online: 18 July 2017

This paper is open access.

Yarns that harvest and generate energy

The researchers involved in this work are confident enough about their prospects that they will be  patenting their research into yarns. From an August 25, 2017 news item on Nanowerk,

An international research team led by scientists at The University of Texas at Dallas and Hanyang University in South Korea has developed high-tech yarns that generate electricity when they are stretched or twisted.

In a study published in the Aug. 25 [2017] issue of the journal Science (“Harvesting electrical energy from carbon nanotube yarn twist”), researchers describe “twistron” yarns and their possible applications, such as harvesting energy from the motion of ocean waves or from temperature fluctuations. When sewn into a shirt, these yarns served as a self-powered breathing monitor.

“The easiest way to think of twistron harvesters is, you have a piece of yarn, you stretch it, and out comes electricity,” said Dr. Carter Haines, associate research professor in the Alan G. MacDiarmid NanoTech Institute at UT Dallas and co-lead author of the article. The article also includes researchers from South Korea, Virginia Tech, Wright-Patterson Air Force Base and China.

An August 25, 2017 University of Texas at Dallas news release, which originated the news item, expands on the theme,

Yarns Based on Nanotechnology

The yarns are constructed from carbon nanotubes, which are hollow cylinders of carbon 10,000 times smaller in diameter than a human hair. The researchers first twist-spun the nanotubes into high-strength, lightweight yarns. To make the yarns highly elastic, they introduced so much twist that the yarns coiled like an over-twisted rubber band.

In order to generate electricity, the yarns must be either submerged in or coated with an ionically conducting material, or electrolyte, which can be as simple as a mixture of ordinary table salt and water.

“Fundamentally, these yarns are supercapacitors,” said Dr. Na Li, a research scientist at the NanoTech Institute and co-lead author of the study. “In a normal capacitor, you use energy — like from a battery — to add charges to the capacitor. But in our case, when you insert the carbon nanotube yarn into an electrolyte bath, the yarns are charged by the electrolyte itself. No external battery, or voltage, is needed.”

When a harvester yarn is twisted or stretched, the volume of the carbon nanotube yarn decreases, bringing the electric charges on the yarn closer together and increasing their energy, Haines said. This increases the voltage associated with the charge stored in the yarn, enabling the harvesting of electricity.

Stretching the coiled twistron yarns 30 times a second generated 250 watts per kilogram of peak electrical power when normalized to the harvester’s weight, said Dr. Ray Baughman, director of the NanoTech Institute and a corresponding author of the study.

“Although numerous alternative harvesters have been investigated for many decades, no other reported harvester provides such high electrical power or energy output per cycle as ours for stretching rates between a few cycles per second and 600 cycles per second.”

Lab Tests Show Potential Applications

In the lab, the researchers showed that a twistron yarn weighing less than a housefly could power a small LED, which lit up each time the yarn was stretched.

To show that twistrons can harvest waste thermal energy from the environment, Li connected a twistron yarn to a polymer artificial muscle that contracts and expands when heated and cooled. The twistron harvester converted the mechanical energy generated by the polymer muscle to electrical energy.

“There is a lot of interest in using waste energy to power the Internet of Things, such as arrays of distributed sensors,” Li said. “Twistron technology might be exploited for such applications where changing batteries is impractical.”

The researchers also sewed twistron harvesters into a shirt. Normal breathing stretched the yarn and generated an electrical signal, demonstrating its potential as a self-powered respiration sensor.

“Electronic textiles are of major commercial interest, but how are you going to power them?” Baughman said. “Harvesting electrical energy from human motion is one strategy for eliminating the need for batteries. Our yarns produced over a hundred times higher electrical power per weight when stretched compared to other weavable fibers reported in the literature.”

Electricity from Ocean Waves

“In the lab we showed that our energy harvesters worked using a solution of table salt as the electrolyte,” said Baughman, who holds the Robert A. Welch Distinguished Chair in Chemistry in the School of Natural Sciences and Mathematics. “But we wanted to show that they would also work in ocean water, which is chemically more complex.”

In a proof-of-concept demonstration, co-lead author Dr. Shi Hyeong Kim, a postdoctoral researcher at the NanoTech Institute, waded into the frigid surf off the east coast of South Korea to deploy a coiled twistron in the sea. He attached a 10 centimeter-long yarn, weighing only 1 milligram (about the weight of a mosquito), between a balloon and a sinker that rested on the seabed.

Every time an ocean wave arrived, the balloon would rise, stretching the yarn up to 25 percent, thereby generating measured electricity.

Even though the investigators used very small amounts of twistron yarn in the current study, they have shown that harvester performance is scalable, both by increasing twistron diameter and by operating many yarns in parallel.

“If our twistron harvesters could be made less expensively, they might ultimately be able to harvest the enormous amount of energy available from ocean waves,” Baughman said. “However, at present these harvesters are most suitable for powering sensors and sensor communications. Based on demonstrated average power output, just 31 milligrams of carbon nanotube yarn harvester could provide the electrical energy needed to transmit a 2-kilobyte packet of data over a 100-meter radius every 10 seconds for the Internet of Things.”

Researchers from the UT Dallas Erik Jonsson School of Engineering and Computer Science and Lintec of America’s Nano-Science & Technology Center also participated in the study.

The investigators have filed a patent on the technology.

In the U.S., the research was funded by the Air Force, the Air Force Office of Scientific Research, NASA, the Office of Naval Research and the Robert A. Welch Foundation. In Korea, the research was supported by the Korea-U.S. Air Force Cooperation Program and the Creative Research Initiative Center for Self-powered Actuation of the National Research Foundation and the Ministry of Science.

Here’s a link to and a citation for the paper,

Harvesting electrical energy from carbon nanotube yarn twist by Shi Hyeong Kim, Carter S. Haines, Na Li, Keon Jung Kim, Tae Jin Mun, Changsoon Choi, Jiangtao Di, Young Jun Oh, Juan Pablo Oviedo, Julia Bykova, Shaoli Fang, Nan Jiang, Zunfeng Liu, Run Wang, Prashant Kumar, Rui Qiao, Shashank Priya, Kyeongjae Cho, Moon Kim, Matthew Steven Lucas, Lawrence F. Drummy, Benji Maruyama, Dong Youn Lee, Xavier Lepró, Enlai Gao, Dawood Albarq, Raquel Ovalle-Robles, Seon Jeong Kim, Ray H. Baughman. Science 25 Aug 2017: Vol. 357, Issue 6353, pp. 773-778 DOI: 10.1126/science.aam8771

This paper is behind a paywall.

Dexter Johnson in an Aug. 25, 2017 posting on his Nanoclast blog (on the IEEE [Institute of Electrical and Electronics Engineers] website) delves further into the research,

“Basically what’s happening is when we stretch the yarn, we’re getting a change in capacitance of the yarn. It’s that change that allows us to get energy out,” explains Carter Haines, associate research professor at UT Dallas and co-lead author of the paper describing the research, in an interview with IEEE Spectrum.

This makes it similar in many ways to other types of energy harvesters. For instance, in other research, it has been demonstrated—with sheets of rubber with coated electrodes on both sides—that you can increase the capacitance of a material when you stretch it and it becomes thinner. As a result, if you have charge on that capacitor, you can change the voltage associated with that charge.

“We’re more or less exploiting the same effect but what we’re doing differently is we’re using an electric chemical cell to do this,” says Haines. “So we’re not changing double layer capacitance in normal parallel plate capacitors. But we’re actually changing the electric chemical capacitance on the surface of a super capacitor yarn.”

While there are other capacitance-based energy harvesters, those other devices require extremely high voltages to work because they’re using parallel plate capacitors, according to Haines.

Dexter asks good questions and his post is very informative.

Getting a more complete picture of aerosol particles at the nanoscale

What is in the air we breathe? In addition to the gases we learned about in school there are particles, not just the dust particles you can see, but micro- and nanoparticles too and scientists would like to know more about them.

An August 23, 2017 news item on Nanowerk features work which may help scientists in their quest,

They may be tiny and invisible, says Xiaoji Xu, but the aerosol particles suspended in gases play a role in cloud formation and environmental pollution and can be detrimental to human health.

Aerosol particles, which are found in haze, dust and vehicle exhaust, measure in the microns. One micron is one-millionth of a meter; a thin human hair is about 30 microns thick.

The particles, says Xu, are among the many materials whose chemical and mechanical properties cannot be fully measured until scientists develop a better method of studying materials at the microscale as well as the much smaller nanoscale (1 nm is one-billionth of a meter).

Xu, an assistant professor of chemistry, has developed such a method and utilized it to perform noninvasive chemical imaging of a variety of materials, as well as mechanical mapping with a spatial resolution of 10 nanometers.

The technique, called peak force infrared (PFIR) microscopy, combines spectroscopy and scanning probe microscopy. In addition to shedding light on aerosol particles, Xu says, PFIR will help scientists study micro- and nanoscale phenomena in a variety of inhomogeneous materials.

The lower portion of this image by Xiaoji Xu’s group shows the operational scheme of peak force infrared (PFIR) microscopy. The upper portion shows the topography of nanoscale PS-b-PMMA polymer islands on a gold substrate. (Image courtesy of Xiaoji Xu)

An August 22, 2017 Lehih University news release by Kurt Pfitzer (also on EurekAlert), which originated the news item, explains the research in more detail (Note: A link has been removed),

“Materials in nature are rarely homogeneous,” says Xu. “Functional polymer materials often consist of nanoscale domains that have specific tasks. Cellular membranes are embedded with proteins that are nanometers in size. Nanoscale defects of materials exist that affect their mechanical and chemical properties.

“PFIR microscopy represents a fundamental breakthrough that will enable multiple innovations in areas ranging from the study of aerosol particles to the investigation of heterogeneous and biological materials,” says Xu.

Xu and his group recently reported their results in an article titled “Nanoscale simultaneous chemical and mechanical imaging via peak force infrared microscopy.” The article was published in Science Advances, a journal of the American Association for the Advancement of Science, which also publishes Science magazine.

The article’s lead author is Le Wang, a Ph.D. student at Lehigh. Coauthors include Xu and Lehigh Ph.D. students Haomin Wang and Devon S. Jakob, as well as Martin Wagner of Bruker Nano in Santa Barbara, Calif., and Yong Yan of the New Jersey Institute of Technology.

“PFIR microscopy enables reliable chemical imaging, the collection of broadband spectra, and simultaneous mechanical mapping in one simple setup with a spatial resolution of ~10 nm,” the group wrote.

“We have investigated three types of representative materials, namely, soft polymers, perovskite crystals and boron nitride nanotubes, all of which provide a strong PFIR resonance for unambiguous nanochemical identification. Many other materials should be suited as well for the multimodal characterization that PFIR microscopy has to offer.

“In summary, PFIR microscopy will provide a powerful analytical tool for explorations at the nanoscale across wide disciplines.”

Xu and Le Wang also published a recent article about the use of PFIR to study aerosols. Titled “Nanoscale spectroscopic and mechanical characterization of individual aerosol particles using peak force infrared microscopy,” the article appeared in an “Emerging Investigators” issue of Chemical Communications, a journal of the Royal Society of Chemistry. Xu was featured as one of the emerging investigators in the issue. The article was coauthored with researchers from the University of Macau and the City University of Hong Kong, both in China.

PFIR simultaneously obtains chemical and mechanical information, says Xu. It enables researchers to analyze a material at various places, and to determine its chemical compositions and mechanical properties at each of these places, at the nanoscale.

“A material is not often homogeneous,” says Xu. “Its mechanical properties can vary from one region to another. Biological systems such as cell walls are inhomogeneous, and so are materials with defects. The features of a cell wall measure about 100 nanometers in size, placing them well within range of PFIR and its capabilities.”

PFIR has several advantages over scanning near-field optical microscopy (SNOM), the current method of measuring material properties, says Xu. First, PFIR obtains a fuller infrared spectrum and a sharper image—6-nm spatial resolution—of a wider variety of materials than does SNOM. SNOM works well with inorganic materials, but does not obtain as strong an infrared signal as the Lehigh technique does from softer materials such as polymers or biological materials.

“Our technique is more robust,” says Xu. “It works better with soft materials, chemical as well as biological.”

The second advantage of PFIR is that it can perform what Xu calls point spectroscopy.

“If there is something of interest chemically on a surface,” Xu says, “I put an AFM [atomic force microscopy] probe to that location to measure the peak-force infrared response.

“It is very difficult to obtain these spectra with current scattering-type scanning near-field optical microscopy. It can be done, but it requires very expensive light sources. Our method uses a narrow-band infrared laser and costs about $100,000. The existing method uses a broadband light source and costs about $300,000.”

A third advantage, says Xu, is that PFIR obtains a mechanical as well as a chemical response from a material.

“No other spectroscopy method can do this,” says Xu. “Is a material rigid or soft? Is it inhomogeneous—is it soft in one area and rigid in another? How does the composition vary from the soft to the rigid areas? A material can be relatively rigid and have one type of chemical composition in one area, and be relatively soft with another type of composition in another area.

“Our method simultaneously obtains chemical and mechanical information. It will be useful for analyzing a material at various places and determining its compositions and mechanical properties at each of these places, at the nanoscale.”

A fourth advantage of PFIR is its size, says Xu.

“We use a table-top laser to get infrared spectra. Ours is a very compact light source, as opposed to the much larger sizes of competing light sources. Our laser is responsible for gathering information concerning chemical composition. We get mechanical information from the AFM [atomic force microscope]. We integrate the two types of measurements into one device to simultaneously obtain two channels of information.”

Although PFIR does not work with liquid samples, says Xu, it can measure the properties of dried biological samples, including cell walls and protein aggregates, achieving a 10-nm spatial resolution without staining or genetic modification.

This looks like very exciting work.

Here are links and citations for both studies mentioned in the news release (the most recently published being cited first),

Nanoscale simultaneous chemical and mechanical imaging via peak force infrared microscopy by Le Wang, Haomin Wang, Martin Wagner, Yong Yan, Devon S. Jakob, and Xiaoji G. Xu. Science Advances 23 Jun 2017: Vol. 3, no. 6, e1700255 DOI: 10.1126/sciadv.1700255

Nanoscale spectroscopic and mechanical characterization of individual aerosol particles using peak force infrared microscopy by Le Wang, Dandan Huang, Chak K. Chan, Yong Jie Li, and Xiaoji G. Xu. Chem. Commun., 2017,53, 7397-7400 DOI: 10.1039/C7CC02301D First published on 16 Jun 2017

The June 23, 2017 paper is open access while the June 16, 2017 paper is behind a paywall.

Science Alive! is everywhere; #AskACurator is Sept. 13, 2017; and more

Researching a piece sometimes leads you to unexpected corners on the internet. This started with an announcement about #AskACurator on Twitter and Instagram in the August 30, 2017 issue (received via email) of What’s Up @ The Museums (from Ingenium or what was known as the Canada Science and Technology Museums Corporation).

Science Alive!

In trying to pad out the one announcement that might be of interest to people who don’t live near one of Canada’s science and technology museums, i.e., anyone who lives outside of Ottawa, Ontario, I checked out their fairly new (the first video in the series was posted in February 2016) science podcast series, Science Alive!

Despite reservations (I have very little interest in space exploration and even less in the Canadarm), I found the first video in the series quite engaging,

Of course, I had more questions but that’s the point o what is intended to be both an information and promotional video designed to attract visitors.

But, this is not the only Science Alive. Simon Fraser University (SFU) has a student-run, not-for-profit organization known as Science AL!VE, which runs summer camps and weekend clubs in British Columbia. (This SFU organization is part of Actua, “Canada’s largest STEM [science, technology, engineering, and mathematics] outreach organization. They have annual reports stretching back to 2010/11.)

There’s also a Science Alive with Living Things in Michigan, US and a science alive! in New Zealand, which “is a not-for-profit trust promoting science and technology worldwide.”

I had to stop there but there are more ‘science alive’ programmes out there.


Here’s the announcement that started my Science Alive! adventure, from the August 30, 2017 issue (received via email) of What’s Up @ The Museums,

September 13, 2017
September is more than back to school time – it’s Ask a Curator Time! Our Museums are excited to once again be among more than 1200 museums from 52 countries participating in #AskACurator Day on Wednesday September 13, 2017! Have a question for our curators?

Send your questions to @SciTechMuseum, @avspacemuseum or @AgMuseum!

#AskACurator is being organized by someone called Mar Dixon. Her website‘s About Me page (from the homepage, click on About Me)  lists current and past projects only. I can certainly appreciate why she might have done that. (IMO) Describing your education, past employers, achievements, etc., i.e., standard biographical information can get boring but the projects you’re working on or have worked on and are passionate about? Well, for some us it’s all about the work.

Here’s more about the Sept. 13, 2017 #AskACurator day on Twitter and Instagram,

This is the list of all museums who signed up so far. It is in alphabetical order by country. I’m updating this page every few days. If your museum isn’t on listed, use the sign up form.  If you are listed and can NOT take part in 2017 please contact me at mar@mardixon.com or @MarDixon on Twitter.

Please note:  @AskACurator is also on Instagram AND Twitter so feel free to use the tag on there!

How to take Part: Participants  Want to know how to Take Part? There’s an article for that! (Please note the date has changed!)

How to take Part: Museums  You might want to tell your followers the time your curator will be available.  Some museums write it on their events page, others leave it open to see what questions they receive.  However, to get your name out there – it helps to jump in to general questions and not just wait to be asked a specific question.  Some people will use the hashtag to ask questions such as how to know what to collect, what skills are needed, what are the unknowns of being a curator etc.  We also have a few #Askacurator people who have questions like ‘do you have a teddy bear in your collection’ or ‘what’s the funniest thing you heard in your museum’ etc.

Last updated August 29 2017
Museums taking part: 1421

Countries: 54

For anyone who’s never dealt with a curator, you might find this video where curator David Pantalony discusses a giant globe and what they did and didn’t include on the globe from Ingenium’s Science Alive! series informative,

Beakerhead Sept. 13 – 17, 2017 in Calgary

Here’s more about this year’s iteration of the event (from the Beakerhead attend page),

Mark your calendars for September 13 – 17, 2017 when Beakerhead takes over Calgary with a smash up of art, science and engineering both indoors and out! From citywide, pop-up engineered art galleries and flame-spitting, larger-than-life public art encounters to the entertaining science of … everything, there’s something for everyone!

With over 60 events and programs to choose from, Beakerhead has something for everyone – whether you define yourself as “creative” or “technical” in nature. In 2016 over 130,000 people took part, including a few actual astronauts!

In 2017, Beakerhead celebrates the ups and downs of experimentation and invention!
A special Canada 150 version of Beakerhead will see Calgary’s downtown core become a canvas for a larger-than-life interactive experience where participants will navigate to and from Beakerhead encounters å la Snakes and Ladders while we celebrate the ups and downs that mark the wild and bumpy ride of invention and creativity.

Events, experiments and programs that make up the five day spectacle include:

  • Snakes and Ladders: An interactive experience that encourages exploration of the city (and human ingenuity) through delightfully engineered public art installations.
  • Workshops and talks: explore the science of scent, play with your food, immerse yourself in the laboratory of life!
  • Four to Six: A street party on Stephen Avenue where science gets social.
  • Ticketed events: Command to be entertained by world famous (and soon-to-be-famous) inventors, scientists, performers (and maybe even an animal or two!)
  • Ingenuity challenges: In that past, Beakerhead has pit catapult teams against each other – this year expect a new high-reaching competition!
  • Community programs: Beakerhead becomes a stage for over 100 collaborating organizations, both large and small, to show off their discoveries and creativity through events and programs of their own. Learn how you can take part, too!
  • School tours, talks, and challenges: Beakerhead engages 25,000 students each year.

The Beakerhead events page is overwhelming and I suggest the unitiated scrol down to the Highlights section where you can find out more about the organization, find a programme announcement which allows you to orient yourself (somewhat), and more.

European Science Open Forum (ESOF) 2018

This science shindig comes along every two years. The last one was in Manchester, UK in 2016 and now it’s time to gear up for Toulouse, France in 2018 (from the ESOF July 2017 newsletter received via email),

ESOF 2018 in Toulouse.
Save the date! One year to go.

The next EuroScience Open Forum, ESOF 2018 will be held in Toulouse, France, 9-14 July 2018 in just one year from now!
Save the dates and plan your visit to the European City of Science 2018, with the ESOF 2018 motto: « Sharing Science: towards new horizons! »

With more than 300 sessions proposed in the first call for scientific sessions on 10 themes and 4 cross-cutting domains covering all sciences, the programme promises to be attractive and a major crossroad of debates on the future of science and how to share it.

Keep an eye on ongoing and future calls: www.esof.eu

Key dates:
Call for Scientific sessions: February -June 2017
Call for Science in the City Festival initiatives: June – September 2017
Call for Careers & Science to Business sessions: July – October 2017
Call for posters and interactive presentations: October 2017 – January 2018

Consider that
– ESOF is the largest interdisciplinary science event in Europe.
– ESOF is a cross-road for exchange between scientists, students, policy makers, innovators, industry managers and science media.
– 2018 is a key year for the preparation of the next framework programme [major seven-year European Union science funding programme; the current such programme is Horizon 2020, which stated in 2013] for research and innovation of the European Union and key discussions will occur at ESOF 2018.

And that
– Toulouse, the Capital of Occitania, in Southern France and the Capital of aeronautics and space research will surprise you with the many facets of its culture and scientific domains.
– And is both a historical and modern lively City, home of 120 000 students!

We are eager to share this event with you and are sure you will make it a wonderful success!

Dr Anne Cambon-Thomsen
ESOF 2018 Champion

You can find out more about ESOF on the website’s About page,

ESOF (EuroScience Open Forum) is the largest interdisciplinary science meeting in Europe. It is dedicated to scientific research and innovation and offers a unique framework for interaction and debate for scientists, innovators, policy makers, business people and the general public.

Created in 2004 by EuroScience, this biennial European forum brings together over 4 000 researchers, educators, business actors, policy makers and journalists from all over the world to discuss breakthroughs in science. More than 40% of the participants are students and young researchers.

The 8th edition of ESOF will take place in Toulouse, France, from 9 till 14 July 2018.

ESOF figures

4000+ delegates from 80+ countries
400+ journalists and science communicators
150+ conferences, workshops and scientific sessions
200+ events open to the general public, attended by more than 35 000 participants

What to expect at ESOF?

Taking part in ESOF is a unique opportunity to:

  • further knowledge on the challenges and breakthroughs in research, innovation and their relation to society;
  • create links, exchange and debate with leaders of the scientific community worldwide in an interdisciplinary context;
  • communicate the latest news on scientific research and innovation to an international audience;
  • develop a network in view of building a research career.

Find out more about ESOF and EuroScience: www.euroscience.org

I can’t find an overarching theme for the event or any promotional videos but there is this: Robots and humans : How do they cooperate ? 5Th preparatory meeting ESOF 2018 video (running time: 1 hour and 41 mins.) The title is if nothing else an intriguing hint of what ESOF 2018 may hold.

I also checked out the Science in the City Festival (formerly City of Science) and found information for this previously mentioned call,

Parallel to the EuroScience Open Forum, the Science in the City Festival will invest the city and its surroundings.

As a free event, Science in the City Festival is aimed at people of all ages who are curious about science and innovation.

If you wish to be part of the Science in the City programme, please send your proposals for our call for initiatives by filling this online form.

Deadline: 30th September 2017

Call for initiatives for the Science in the City Festival(PDF)

The online form lists a set of ESOF 2018 themes or stems or topics,

If it helps, Toulouse is known as ‘la Ville Rose’ or Pink City.

That’s it for this roundup of ‘sciencish’ bits.

Burning coal produces harmful titanium dioxide nanoparticles

It turns out that Canada has the fifth largest reserve of coal in the world, according to the Coal in Canada Wikipedia entry (Note: Links have been removed),

Coal reserves in Canada rank fifth largest in the world (following the former Soviet Union, the United States, the People’s Republic of China and Australia) at approximately 10 billion tons, 10% of the world total.[1] This represents more energy than all of the oil and gas in the country combined. The coal industry generates CDN$5 billion annually.[2] Most of Canada’s coal mining occurs in the West of the country.[3] British Columbia operates 10 coal mines, Alberta 9, Saskatchewan 3 and New Brunswick one. Nova Scotia operates several small-scale mines, Westray having closed following the 1992 disaster there.[4]

So, this news from Virginia holds more than the usual interest for me (I’m in British Columbia). From an Aug. 8, 2017 Virginia Tech news release (also on EurekAlert),

Environmental scientists led by the Virginia Tech College of Science have discovered that the burning of coal produces incredibly small particles of a highly unusual form of titanium oxide.

When inhaled, these nanoparticles can enter the lungs and potentially the bloodstream.

The particulates — known as titanium suboxide nanoparticles — are unintentionally produced as coal is burned, creating these tiniest of particles, as small as 100 millionths of a meter [emphasis mine], said the Virginia Tech-led team. When the particles are introduced into the air — unless captured by high-tech particle traps — they can float away from power plant stacks and travel on air currents locally, regionally, and even globally.

As an example of this, these nanoparticles were found on city streets, sidewalks, and in standing water in Shanghai, China.

The findings are published in the latest issue of Nature Communications under team leader Michael F. Hochella Jr., University Distinguished Professor of Geosciences with the College of Science, and Yi Yang, a professor at East China Normal University in Shanghai. Other study participants include Duke University, the University of Kentucky, and Laurentian University in Canada.

“The problem with these nanoparticles is that there is no easy or practical way to prevent their formation during coal burning,” Hochella said, adding that in nations with strong environmental regulations, such as the United States, most of the nanoparticles would be caught by particle traps. Not so in Africa [a continent not a nation], China, or India, where regulations are lax or nonexistent, with coal ash and smoke entering the open air.

“Due to advanced technology used at U.S.-based coal burning power plants, mandated by the Clean Air Act and the Environmental Protection Agency, most of these nanoparticles and other tiny particles are removed before the final emission of the plant’s exhaust gases,” Hochella said. “But in countries where the particles from the coal burning are not nearly so efficiently removed, or removed at all, these titanium suboxide nanoparticles and many other particle types are emitted into the atmosphere, in part resulting in hazy skies that plague many countries, especially in China and India.”

Hochella and his team found these previously unknown nanoparticles not only in coal ash from around the world and in the gaseous waste emissions of coal plants, but on city streets, in soils and storm water ponds, and at wastewater treatment plants.

“I could not believe what I have found at the beginning, because they had been reported so extremely rarely in the natural environment,” said Yang, who once worked as a visiting professor in Virginia Tech’s Department of Geosciences with Hochella. “It took me several months to confirm their occurrence in coal ash samples.”

The newly found titanium suboxide — called Magnéli phases — was once thought rare, found only sparingly on Earth in some meteorites, from a small area of rock formations in western Greenland, and occasionally in moon rocks. The findings by Hochella and his team indicate that these nanoparticles are in fact widespread globally. They are only now being studied for the first time in natural environments using powerful electron microscopes.

Why did the discovery occur now? According to the report, nearly all coal contains traces of the minerals rutile and/or anatase, both “normal,” naturally occurring, and relatively inert titanium oxides, especially in the absence of light. When those minerals are burned in the presence of coal, research found they easily and quickly converted to these unusual titanium suboxide nanoparticles. The nanoparticles then become entrained in the gases that leave the power plant.

When inhaled, the nanoparticles enter deep into the lungs, potentially all the way into the air sacs that move oxygen into our bloodstream during the normal breathing process. While human lung toxicity of these particles is not yet known, a preliminary biotoxicity test by Hochella and Richard Di Giulio, professor of environmental toxicology, and Jessica Brandt, a doctoral candidate, both at Duke University, indicates that the particles do indeed have toxicity potential.

According to the team, further study is clearly needed, especially biotoxicity testing directly relevant to the human lung. Partnering with coal-power plants either in the United States or China would be ideal, said Yang.

More troubling, the study shows that titanium suboxide nanoparticles are biologically active in the dark, making the particles highly suspect. Exact human health effects are yet unknown.

“Future studies will need to very carefully investigate and access the toxicity of titanium suboxide nanoparticles in the human lung, and this could take years, a sobering thought considering its potential danger,” Hochella said.

As the titanium suboxide nanoparticle itself is produced incidentally, Hochella and his team came across the nanoparticle by accident while studying a 2014 coal ash spill in the Dan River, North Carolina. During the study of the downstream movement of toxic metals in the ash in the Dan River, the team discovered and recognized the presence of small amounts of the highly unusual titanium suboxide.

The group later produced the titanium suboxide nanoparticles when burning coal in a lab simulation.

This new potential air pollution health hazard builds on already established findings from the World Health Organization. It estimates that 3.3 million premature deaths occur worldwide per year due to polluted air, Hochella said. In China, 1.6 million premature deaths are estimated annually due to cardiovascular and respiratory injury from air pollution. Most Chinese megacities top 100 severely hazy days each year with particle concentrations two to four times higher than WHO guidelines, Yang said.

Direct health effects on humans is only one factor. Findings of thousands of scientists have determined that the biggest driver of warming of the planet and the resulting climate change is industrial-scale coal burning. The impact of titanium suboxide nanoparticles found in the atmosphere, in addition to greenhouse gases, on animals, water, and plants is not yet known.

They’ve used an unusual unit of measurement, “100 millionths of a meter,” nanoparticles are usually described in nanometers.

Here’s a link to and a citation for the paper,

Discovery and ramifications of incidental Magnéli phase generation and release from industrial coal-burning by Yi Yang, Bo Chen, James Hower, Michael Schindler, Christopher Winkler, Jessica Brandt, Richard Di Giulio, Jianping Ge, Min Liu, Yuhao Fu, Lijun Zhang, Yuru Chen, Shashank Priya, & Michael F. Hochella Jr. Nature Communications 8, Article number: 194 (2017) doi:10.1038/s41467-017-00276-2 Published online: 08 August 2017

This paper is behind a paywall.

This put me in mind of the famous London smog, which one doesn’t hear about much anymore. For anyone not familiar with that phenomenon, here’s more from the Great Smog of London Wikipedia entry (Note: Links have been removed),

The Great Smog of London, or Great Smog of 1952 sometimes called the Big Smoke,[1] was a severe air-pollution event [emphasis mine] that affected the British capital of London in December 1952. A period of cold weather, combined with an anticyclone and windless conditions, collected airborne pollutants – mostly arising from the use of coal [emphasis mine]– to form a thick layer of smog over the city. It lasted from Friday, 5 December to Tuesday, 9 December 1952 and then dispersed quickly when the weather changed.

It caused major disruption by reducing visibility and even penetrating indoor areas, far more severe than previous smog events experienced in the past, called “pea-soupers”. Government medical reports in the following weeks, however, estimated that up until 8 December, 4,000 people had died as a direct result of the smog and 100,000 more were made ill by the smog’s effects on the human respiratory tract. More recent research suggests that the total number of fatalities was considerably greater, about 12,000.[2]

London had suffered since the 1200s from poor air quality,[3] which worsened in the 1600s,[4][5] but the Great Smog is known to be the worst air-pollution event in the history of the United Kingdom,[6] and the most significant in terms of its effect on environmental research, government regulation, and public awareness of the relationship between air quality and health.[2][4] It led to several changes in practices and regulations, including the Clean Air Act 1956. …

Gecko lets go!

After all these years of writing about geckos and their adhesive properties it seems that geckos sometimes slip or let go, theoretically. (BTW, there’s a Canadian connection’ one of  the researchers is at the University of Calgary in the province of Alberta.) From a July 19, 2017 Cornell University news release (also on EurekAlert),

Geckos climb vertically up trees, walls and even windows, thanks to pads on the digits of their feet that employ a huge number of tiny bristles and hooks.

Scientists have long marveled at the gecko’s adhesive capabilities, which have been described as 100 times more than what is needed to support their body weight or run quickly up a surface.

But a new theoretical study examines for the first time the limits of geckos’ gripping ability in natural contexts. The study, recently published in the Journal of the Royal Society Interface, reports there are circumstances – such as when geckos fear for their lives, leap into the air and are forced to grab on to a leaf below – when they need every bit of that fabled adhesive ability, and sometimes it’s not enough.

“Geckos are notoriously described as having incredible ability to adhere to a surface,” said Karl Niklas, professor of plant evolution at Cornell University and a co-author of the paper. The study’s lead authors, Timothy Higham at the University of California, Riverside, and Anthony Russell at the University of Calgary, Canada, both zoologists, brought Niklas into the project for his expertise on plant biomechanics.

“The paper shows that [adhesive capability] might be exaggerated, because geckos experience falls and a necessity to grip a surface like a leaf that requires a much more tenacious adhesion force; the paper shows that in some cases the adhesive ability can be exceeded,” Niklas said.

In the theoretical study, the researchers developed computer models to understand if there are common-place instances when the geckos’ ability to hold on to surfaces might be challenged, such as when canopy-dwelling geckos are being chased by a predator and are forced to leap from a tree, hoping to land on a leaf below. The researchers incorporated ecological observations, adhesive force measurements, and body size and shape measurements of museum specimens to conduct simulations. They also considered the biomechanics of the leaves, the size of the leaves and the angles on the surface that geckos might land on to determine impact forces. Calculations were also based on worst-case scenarios, where a gecko reaches a maximum speed when it is no longer accelerating, called “terminal settling velocity.”

“Leaves are cantilevered like diving boards and they go through harmonic motion [when struck], so you have to calculate the initial deflection and orientation, and then consider how does that leaf rebound and can the gecko still stay attached,” Niklas said.

The final result showed that in some cases geckos don’t have enough adhesion to save themselves, he added.

Higham and Russell are planning to travel to French Guiana to do empirical adhesive force studies on living geckos in native forests.

The basic research helps people better understand how geckos stick to surfaces, and has the potential for future applications that mimic such biological mechanisms.

Here’s a link to and a citation for the paper,

Leaping lizards landing on leaves: escape-induced jumps in the rainforest canopy challenge the adhesive limits of geckos by Timothy E. Higham, Anthony P. Russell, Karl J. Niklas. Journal of the Royal Society Interface June 2017 Volume 14, issue 131 DOI: 10.1098/rsif.2017.0156 Published 28 June 2017

I think the authors had some fun with that title. In any event, the paper is behind a paywall.

Organismic learning—learning to forget

This approach to mimicking the human brain differs from the memristor. (You can find several pieces about memrisors here including this August 24, 2017 post about a derivative, a neuristor).  This approach comes from scientists at Purdue University and employs a quantum material. From an Aug. 15, 2017 news item on phys.org,

A new computing technology called “organismoids” mimics some aspects of human thought by learning how to forget unimportant memories while retaining more vital ones.

“The human brain is capable of continuous lifelong learning,” said Kaushik Roy, Purdue University’s Edward G. Tiedemann Jr. Distinguished Professor of Electrical and Computer Engineering. “And it does this partially by forgetting some information that is not critical. I learn slowly, but I keep forgetting other things along the way, so there is a graceful degradation in my accuracy of detecting things that are old. What we are trying to do is mimic that behavior of the brain to a certain extent, to create computers that not only learn new information but that also learn what to forget.”

The work was performed by researchers at Purdue, Rutgers University, the Massachusetts Institute of Technology, Brookhaven National Laboratory and Argonne National Laboratory.

Central to the research is a ceramic “quantum material” called samarium nickelate, which was used to create devices called organismoids, said Shriram Ramanathan, a Purdue professor of materials engineering.

A video describing the work has been produced,

An August 14, 2017 Purdue University news release by Emil Venere, which originated the news item,  details the work,

“These devices possess certain characteristics of living beings and enable us to advance new learning algorithms that mimic some aspects of the human brain,” Roy said. “The results have far reaching implications for the fields of quantum materials as well as brain-inspired computing.”

When exposed to hydrogen gas, the material undergoes a massive resistance change, as its crystal lattice is “doped” by hydrogen atoms. The material is said to breathe, expanding when hydrogen is added and contracting when the hydrogen is removed.

“The main thing about the material is that when this breathes in hydrogen there is a spectacular quantum mechanical effect that allows the resistance to change by orders of magnitude,” Ramanathan said. “This is very unusual, and the effect is reversible because this dopant can be weakly attached to the lattice, so if you remove the hydrogen from the environment you can change the electrical resistance.”

When hydrogen is exposed to the material, it splits into a proton and an electron, and the electron attaches to the nickel, temporarily causing the material to become an insulator.

“Then, when the hydrogen comes out, this material becomes conducting again,” Ramanathan said. “What we show in this paper is the extent of conduction and insulation can be very carefully tuned.”

This changing conductance and the “decay of that conductance over time” is similar to a key animal behavior called habituation.

“Many animals, even organisms that don’t have a brain, possess this fundamental survival skill,” Roy said. “And that’s why we call this organismic behavior. If I see certain information on a regular basis, I get habituated, retaining memory of it. But if I haven’t seen such information over a long time, then it slowly starts decaying. So, the behavior of conductance going up and down in exponential fashion can be used to create a new computing model that will incrementally learn and at same time forget things in a proper way.”

The researchers have developed a “neural learning model” they have termed adaptive synaptic plasticity.

“This could be really important because it’s one of the first examples of using quantum materials directly for solving a major problem in neural learning,” Ramanathan said.

The researchers used the organismoids to implement the new model for synaptic plasticity.

“Using this effect we are able to model something that is a real problem in neuromorphic computing,” Roy said. “For example, if I have learned your facial features I can still go out and learn someone else’s features without really forgetting yours. However, this is difficult for computing models to do. When learning your features, they can forget the features of the original person, a problem called catastrophic forgetting.”

Neuromorphic computing is not intended to replace conventional general-purpose computer hardware, based on complementary metal-oxide-semiconductor transistors, or CMOS. Instead, it is expected to work in conjunction with CMOS-based computing. Whereas CMOS technology is especially adept at performing complex mathematical computations, neuromorphic computing might be able to perform roles such as facial recognition, reasoning and human-like decision making.

Roy’s team performed the research work on the plasticity model, and other collaborators concentrated on the physics of how to explain the process of doping-driven change in conductance central to the paper. The multidisciplinary team includes experts in materials, electrical engineering, physics, and algorithms.

“It’s not often that a materials science person can talk to a circuits person like professor Roy and come up with something meaningful,” Ramanathan said.

Organismoids might have applications in the emerging field of spintronics. Conventional computers use the presence and absence of an electric charge to represent ones and zeroes in a binary code needed to carry out computations. Spintronics, however, uses the “spin state” of electrons to represent ones and zeros.

It could bring circuits that resemble biological neurons and synapses in a compact design not possible with CMOS circuits. Whereas it would take many CMOS devices to mimic a neuron or synapse, it might take only a single spintronic device.

In future work, the researchers may demonstrate how to achieve habituation in an integrated circuit instead of exposing the material to hydrogen gas.

Here’s a link to and a citation for the paper,

Habituation based synaptic plasticity and organismic learning in a quantum perovskite by Fan Zuo, Priyadarshini Panda, Michele Kotiuga, Jiarui Li, Mingu Kang, Claudio Mazzoli, Hua Zhou, Andi Barbour, Stuart Wilkins, Badri Narayanan, Mathew Cherukara, Zhen Zhang, Subramanian K. R. S. Sankaranarayanan, Riccardo Comin, Karin M. Rabe, Kaushik Roy, & Shriram Ramanathan. Nature Communications 8, Article number: 240 (2017) doi:10.1038/s41467-017-00248-6 Published online: 14 August 2017

This paper is open access.

High speed rail link for Cascadia Innovation Corridor

In a Feb. 28, 2017 posting I featured an announcement about what I believe is the first  project from the British Columbia (province of Canada) and Washington State (US) government’s joint Cascadia Innovation Corridor initiative:  the Cascadia Analytics Cooperative, During the telephone press conference a couple of the participants joked about hyperloop (transportation pods in vacuum tubes) and  being able to travel between Vancouver (Canada) and Seattle (US) in minutes. It seems that might not have been quite the joke I assumed. Kenneth Chan in an Aug. 14, 2017 posting for the Daily Hive announced a high-speed rail feasibility study is underway (Note: Links have been removed),

According to KUOW public radio, the study began in late-July and will be conducted by a consultant at a cost of US$300,000 – down from the budgeted USD$1 million when the study was first announced earlier this year in Governor Jay Inslee’s proposed state budget. The budget bill proposed Washington State stations at locations such as Bellingham, Everett, SeaTac International Airport, Tacoma, Olympia, and Vancouver, Washington.

The idea has received the full backing of Washington State-based Microsoft, which supported the study with an additional $50,000 contribution. [emphasis mine] Engineering consultancy firm CH2M, which has offices in Vancouver, Seattle, and Portland, has been contracted to perform the study.

Interest in such a rail link is spurred from the Cascadia Innovation Corridor agreement signed by the government leaders of BC and Washington State last fall. The agreement committed both jurisdictions to growing the Vancouver-Seattle corridor into a tech corridor and innovation hub and improving transportation connections, such as high-speed rail.

“Why not a high speed train from Vancouver to Seattle to Portland? If we lived in Europe it would already be there,” said Brad Smith, Microsoft President and Chief Legal Officer, at a recent Portland conference on regional policy. “We need to raise our sights and our ambition level as a region.”

Microsoft is very interested in facilitating greater ease of movement, a development which causes me to to feel some unease as mentioned in my February 28, 2017 posting,

I look forward to hearing more about the Cascadia Urban Analytics Cooperative and the Cascadia Innovation Corridor as they develop. This has the potential to be very exciting although I do have some concerns such as MIcrosoft and its agendas, both stated and unstated. After all, the Sept. 2016 meeting was convened by Microsoft and its public affairs/lobbying group and the topic was innovation, which is code for business and as hinted earlier, business is not synonymous with social good. Having said that I’m not about to demonize business either. I just think a healthy dose of skepticism is called for. Good things can happen but we need to ensure they do.

Since February 2017, the government in British Columbia has changed hands and is now led by James Horgan of the New Democratic Party. Like Christy Clark and the Liberals before them, this provincial government does not have any science policy, a ministry of science (senior or junior), or any evidence of independent science advice. There has been (and may still be, it’s hard to tell) a Premier’s Technology Council, a BC Innovation Council (formerly the Science Council of BC), and #BCTECH Strategy which hie more to business and applied science than an inclusive ‘science strategy’ with attendant government agencies.

Canadian science policy news and doings (also: some US science envoy news)

I have a couple of notices from the Canadian Science Policy Centre (CSPC), a twitter feed, and an article in online magazine to thank for this bumper crop of news.

 Canadian Science Policy Centre: the conference

The 2017 Canadian Science Policy Conference to be held Nov. 1 – 3, 2017 in Ottawa, Ontario for the third year in a row has a super saver rate available until Sept. 3, 2017 according to an August 14, 2017 announcement (received via email).

Time is running out, you have until September 3rd until prices go up from the SuperSaver rate.

Savings off the regular price with the SuperSaver rate:
Up to 26% for General admission
Up to 29% for Academic/Non-Profit Organizations
Up to 40% for Students and Post-Docs

Before giving you the link to the registration page and assuming that you might want to check out what is on offer at the conference, here’s a link to the programme. They don’t seem to have any events celebrating Canada’s 150th anniversary although they do have a session titled, ‘The Next 150 years of Science in Canada: Embedding Equity, Delivering Diversity/Les 150 prochaine années de sciences au Canada:  Intégrer l’équité, promouvoir la diversité‘,

Enhancing equity, diversity, and inclusivity (EDI) in science, technology, engineering and math (STEM) has been described as being a human rights issue and an economic development issue by various individuals and organizations (e.g. OECD). Recent federal policy initiatives in Canada have focused on increasing participation of women (a designated under-represented group) in science through increased reporting, program changes, and institutional accountability. However, the Employment Equity Act requires employers to act to ensure the full representation of the three other designated groups: Aboriginal peoples, persons with disabilities and members of visible minorities. Significant structural and systemic barriers to full participation and employment in STEM for members of these groups still exist in Canadian institutions. Since data support the positive role of diversity in promoting innovation and economic development, failure to capture the full intellectual capacity of a diverse population limits provincial and national potential and progress in many areas. A diverse international panel of experts from designated groups will speak to the issue of accessibility and inclusion in STEM. In addition, the discussion will focus on evidence-based recommendations for policy initiatives that will promote full EDI in science in Canada to ensure local and national prosperity and progress for Canada over the next 150 years.

There’s also this list of speakers . Curiously, I don’t see Kirsty Duncan, Canada’s Minister of Science on the list, nor do I see any other politicians in the banner for their conference website  This divergence from the CSPC’s usual approach to promoting the conference is interesting.

Moving onto the conference, the organizers have added two panels to the programme (from the announcement received via email),

Friday, November 3, 2017
Open Science and Innovation
Organizer: Tiberius Brastaviceanu
Organization: ACES-CAKE

10:30AM- 12:00PM
The Scientific and Economic Benefits of Open Science
Organizer: Arij Al Chawaf
Organization: Structural Genomics

I think this is the first time there’s been a ‘Tiberius’ on this blog and teamed with the organization’s name, well, I just had to include it.

Finally, here’s the link to the registration page and a page that details travel deals.

Canadian Science Policy Conference: a compendium of documents and articles on Canada’s Chief Science Advisor and Ontario’s Chief Scientist and the pre-2018 budget submissions

The deadline for applications for the Chief Science Advisor position was extended to Feb. 2017 and so far, there’s no word as to whom it might be. Perhaps Minister of Science Kirsty Duncan wants to make a splash with a surprise announcement at the CSPC’s 2017 conference? As for Ontario’s Chief Scientist, this move will make province the third (?) to have a chief scientist, after Québec and Alberta. There is apparently one in Alberta but there doesn’t seem to be a government webpage and his LinkedIn profile doesn’t include this title. In any event, Dr. Fred Wrona is mentioned as the Alberta’s Chief Scientist in a May 31, 2017 Alberta government announcement. *ETA Aug. 25, 2017: I missed the Yukon, which has a Senior Science Advisor. The position is currently held by Dr. Aynslie Ogden.*

Getting back to the compendium, here’s the CSPC’s A Comprehensive Collection of Publications Regarding Canada’s Federal Chief Science Advisor and Ontario’s Chief Scientist webpage. Here’s a little background provided on the page,

On June 2nd, 2017, the House of Commons Standing Committee on Finance commenced the pre-budget consultation process for the 2018 Canadian Budget. These consultations provide Canadians the opportunity to communicate their priorities with a focus on Canadian productivity in the workplace and community in addition to entrepreneurial competitiveness. Organizations from across the country submitted their priorities on August 4th, 2017 to be selected as witness for the pre-budget hearings before the Committee in September 2017. The process will result in a report to be presented to the House of Commons in December 2017 and considered by the Minister of Finance in the 2018 Federal Budget.






The deadline for pre-2018 budget submissions was Aug. 4, 2017 and they haven’t yet scheduled any meetings although they are to be held in September. (People can meet with the Standing Committee on Finance in various locations across Canada to discuss their submissions.) I’m not sure where the CSPC got their list of ‘science’ submissions but it’s definitely worth checking as there are some odd omissions such as TRIUMF (Canada’s National Laboratory for Particle and Nuclear Physics)), Genome Canada, the Pan-Canadian Artificial Intelligence Strategy, CIFAR (Canadian Institute for Advanced Research), the Perimeter Institute, Canadian Light Source, etc.

Twitter and the Naylor Report under a microscope

This news came from University of British Columbia President Santa Ono’s twitter feed,

 I will join Jon [sic] Borrows and Janet Rossant on Sept 19 in Ottawa at a Mindshare event to discuss the importance of the Naylor Report

The Mindshare event Ono is referring to is being organized by Universities Canada (formerly the Association of Universities and Colleges of Canada) and the Institute for Research on Public Policy. It is titled, ‘The Naylor report under the microscope’. Here’s more from the event webpage,

Join Universities Canada and Policy Options for a lively discussion moderated by editor-in-chief Jennifer Ditchburn on the report from the Fundamental Science Review Panel and why research matters to Canadians.


Jennifer Ditchburn, editor, Policy Options.

Jennifer Ditchburn

Editor-in-chief, Policy Options

Jennifer Ditchburn is the editor-in-chief of Policy Options, the online policy forum of the Institute for Research on Public Policy.  An award-winning parliamentary correspondent, Jennifer began her journalism career at the Canadian Press in Montreal as a reporter-editor during the lead-up to the 1995 referendum.  From 2001 and 2006 she was a national reporter with CBC TV on Parliament Hill, and in 2006 she returned to the Canadian Press.  She is a three-time winner of a National Newspaper Award:  twice in the politics category, and once in the breaking news category. In 2015 she was awarded the prestigious Charles Lynch Award for outstanding coverage of national issues. Jennifer has been a frequent contributor to television and radio public affairs programs, including CBC’s Power and Politics, the “At Issue” panel, and The Current. She holds a bachelor of arts from Concordia University, and a master of journalism from Carleton University.


Tuesday, September 19, 2017

 12-2 pm

Fairmont Château Laurier,  Laurier  Room
 1 Rideau Street, Ottawa


I can’t tell if they’re offering lunch or if there is a cost associated with this event so you may want to contact the organizers.

As for the Naylor report, I posted a three-part series on June 8, 2017, which features my comments and the other comments I was able to find on the report:

INVESTING IN CANADA’S FUTURE; Strengthening the Foundations of Canadian Research (Review of fundamental research final report): 1 of 3

INVESTING IN CANADA’S FUTURE; Strengthening the Foundations of Canadian Research (Review of fundamental research final report): 2 of 3

INVESTING IN CANADA’S FUTURE; Strengthening the Foundations of Canadian Research (Review of fundamental research final report): 3 of 3

One piece not mentioned in my three-part series is Paul Wells’ provocatively titled June 29, 2017 article for MacLean’s magazine, Why Canadian scientists aren’t happy (Note: Links have been removed),

Much hubbub this morning over two interviews Kirsty Duncan, the science minister, has given the papers. The subject is Canada’s Fundamental Science Review, commonly called the Naylor Report after David Naylor, the former University of Toronto president who was its main author.

Other authors include BlackBerry founder Mike Lazaridis, who has bankrolled much of the Waterloo renaissance, and Canadian Nobel physicist Arthur McDonald. It’s as blue-chip as a blue-chip panel could be.

Duncan appointed the panel a year ago. It’s her panel, delivered by her experts. Why does it not seem to be… getting anywhere? Why does it seem to have no champion in government? Therein lies a tale.

Note, first, that Duncan’s interviews—her first substantive comment on the report’s recommendations!—come nearly three months after its April release, which in turn came four months after Duncan asked Naylor to deliver his report, last December. (By March I had started to make fun of the Trudeau government in print for dragging its heels on the report’s release. That column was not widely appreciated in the government, I’m told.)

Anyway, the report was released, at an event attended by no representative of the Canadian government. Here’s the gist of what I wrote at the time:


Naylor’s “single most important recommendation” is a “rapid increase” in federal spending on “independent investigator-led research” instead of the “priority-driven targeted research” that two successive federal governments, Trudeau’s and Stephen Harper’s, have preferred in the last 8 or 10 federal budgets.

In English: Trudeau has imitated Harper in favouring high-profile, highly targeted research projects, on areas of study selected by political staffers in Ottawa, that are designed to attract star researchers from outside Canada so they can bolster the image of Canada as a research destination.

That’d be great if it wasn’t achieved by pruning budgets for the less spectacular research that most scientists do.

Naylor has numbers. “Between 2007-08 and 2015-16, the inflation-adjusted budgetary envelope for investigator-led research fell by 3 per cent while that for priority-driven research rose by 35 per cent,” he and his colleagues write. “As the number of researchers grew during this period, the real resources available per active researcher to do investigator-led research declined by about 35 per cent.”

And that’s not even taking into account the way two new programs—the $10-million-per-recipient Canada Excellence Research Chairs and the $1.5 billion Canada First Research Excellence Fund—are “further concentrating resources in the hands of smaller numbers of individuals and institutions.”

That’s the context for Duncan’s remarks. In the Globe, she says she agrees with Naylor on “the need for a research system that promotes equity and diversity, provides a better entry for early career researchers and is nimble in response to new scientific opportunities.” But she also “disagreed” with the call for a national advisory council that would give expert advice on the government’s entire science, research and innovation policy.

This is an asinine statement. When taking three months to read a report, it’s a good idea to read it. There is not a single line in Naylor’s overlong report that calls for the new body to make funding decisions. Its proposed name is NACRI, for National Advisory Council on Research and Innovation. A for Advisory. Its responsibilities, listed on Page 19 if you’re reading along at home, are restricted to “advice… evaluation… public reporting… advice… advice.”

Duncan also didn’t promise to meet Naylor’s requested funding levels: $386 million for research in the first year, growing to $1.3 billion in new money in the fourth year. That’s a big concern for researchers, who have been warning for a decade that two successive government’s—Harper’s and Trudeau’s—have been more interested in building new labs than in ensuring there’s money to do research in them.

The minister has talking points. She gave the same answer to both reporters about whether Naylor’s recommendations will be implemented in time for the next federal budget. “It takes time to turn the Queen Mary around,” she said. Twice. I’ll say it does: She’s reacting three days before Canada Day to a report that was written before Christmas. Which makes me worry when she says elected officials should be in charge of being nimble.

Here’s what’s going on.

The Naylor report represents Canadian research scientists’ side of a power struggle. The struggle has been continuing since Jean Chrétien left office. After early cuts, he presided for years over very large increases to the budgets of the main science granting councils. But since 2003, governments have preferred to put new funding dollars to targeted projects in applied sciences. …

Naylor wants that trend reversed, quickly. He is supported in that call by a frankly astonishingly broad coalition of university administrators and working researchers, who until his report were more often at odds. So you have the group representing Canada’s 15 largest research universities and the group representing all universities and a new group representing early-career researchers and, as far as I can tell, every Canadian scientist on Twitter. All backing Naylor. All fundamentally concerned that new money for research is of no particular interest if it does not back the best science as chosen by scientists, through peer review.

The competing model, the one preferred by governments of all stripes, might best be called superclusters. Very large investments into very large projects with loosely defined scientific objectives, whose real goal is to retain decorated veteran scientists and to improve the Canadian high-tech industry. Vast and sprawling labs and tech incubators, cabinet ministers nodding gravely as world leaders in sexy trendy fields sketch the golden path to Jobs of Tomorrow.

You see the imbalance. On one side, ribbons to cut. On the other, nerds experimenting on tapeworms. Kirsty Duncan, a shaky political performer, transparently a junior minister to the supercluster guy, with no deputy minister or department reporting to her, is in a structurally weak position: her title suggests she’s science’s emissary to the government, but she is not equipped to be anything more than government’s emissary to science.

A government that consistently buys into the market for intellectual capital at the very top of the price curve is a factory for producing white elephants. But don’t take my word for it. Ask Geoffrey Hinton [University of Toronto’s Geoffrey Hinton, a Canadian leader in machine learning].

“There is a lot of pressure to make things more applied; I think it’s a big mistake,” he said in 2015. “In the long run, curiosity-driven research just works better… Real breakthroughs come from people focusing on what they’re excited about.”

I keep saying this, like a broken record. If you want the science that changes the world, ask the scientists who’ve changed it how it gets made. This government claims to be interested in what scientists think. We’ll see.

Incisive and acerbic,  you may want to make time to read this article in its entirety.

Getting back to the ‘The Naylor report under the microscope’ event, I wonder if anyone will be as tough and direct as Wells. Going back even further, I wonder if this is why there’s no mention of Duncan as a speaker at the conference. It could go either way: surprise announcement of a Chief Science Advisor, as I first suggested, or avoidance of a potentially angry audience.

For anyone curious about Geoffrey Hinton, there’s more here in my March 31, 2017 post (scroll down about 20% of the way) and for more about the 2017 budget and allocations for targeted science projects there’s my March 24, 2017 post.

US science envoy quits

An Aug. 23, 2017article by Matthew Rosza for salon.com notes the resignation of one of the US science envoys,

President Donald Trump’s infamous response to the Charlottesville riots — namely, saying that both sides were to blame and that there were “very fine people” marching as white supremacists — has prompted yet another high profile resignation from his administration.

Daniel M. Kammen, who served as a science envoy for the State Department and focused on renewable energy development in the Middle East and Northern Africa, submitted a letter of resignation on Wednesday. Notably, he began the first letter of each paragraph with letters that spelled out I-M-P-E-A-C-H. That followed a letter earlier this month by writer Jhumpa Lahiri and actor Kal Penn to similarly spell R-E-S-I-S-T in their joint letter of resignation from the President’s Committee on Arts and Humanities.

Jeremy Berke’s Aug. 23, 2017 article for BusinessInsider.com provides a little more detail (Note: Links have been removed),

A State Department climate science envoy resigned Wednesday in a public letter posted on Twitter over what he says is President Donald Trump’s “attacks on the core values” of the United States with his response to violence in Charlottesville, Virginia.

“My decision to resign is in response to your attacks on the core values of the United States,” wrote Daniel Kammen, a professor of energy at the University of California, Berkeley, who was appointed as one five science envoys in 2016. “Your failure to condemn white supremacists and neo-Nazis has domestic and international ramifications.”

“Your actions to date have, sadly, harmed the quality of life in the United States, our standing abroad, and the sustainability of the planet,” Kammen writes.

Science envoys work with the State Department to establish and develop energy programs in countries around the world. Kammen specifically focused on renewable energy development in the Middle East and North Africa.

That’s it.

Congratulate China on the world’s first quantum communication network

China has some exciting news about the world’s first quantum network; it’s due to open in late August 2017 so you may want to have your congratulations in order for later this month.

An Aug. 4, 2017 news item on phys.org makes the announcement,

As malicious hackers find ever more sophisticated ways to launch attacks, China is about to launch the Jinan Project, the world’s first unhackable computer network, and a major milestone in the development of quantum technology.

Named after the eastern Chinese city where the technology was developed, the network is planned to be fully operational by the end of August 2017. Jinan is the hub of the Beijing-Shanghai quantum network due to its strategic location between the two principal Chinese metropolises.

“We plan to use the network for national defence, finance and other fields, and hope to spread it out as a pilot that if successful can be used across China and the whole world,” commented Zhou Fei, assistant director of the Jinan Institute of Quantum Technology, who was speaking to Britain’s Financial Times.

An Aug. 3, 2017 CORDIS (Community Research and Development Research Information Service [for the European Commission]) press release, which originated the news item, provides more detail about the technology,

By launching the network, China will become the first country worldwide to implement quantum technology for a real life, commercial end. It also highlights that China is a key global player in the rush to develop technologies based on quantum principles, with the EU and the United States also vying for world leadership in the field.

The network, known as a Quantum Key Distribution (QKD) network, is more secure than widely used electronic communication equivalents. Unlike a conventional telephone or internet cable, which can be tapped without the sender or recipient being aware, a QKD network alerts both users to any tampering with the system as soon as it occurs. This is because tampering immediately alters the information being relayed, with the disturbance being instantly recognisable. Once fully implemented, it will make it almost impossible for other governments to listen in on Chinese communications.

In the Jinan network, some 200 users from China’s military, government, finance and electricity sectors will be able to send messages safe in the knowledge that only they are reading them. It will be the world’s longest land-based quantum communications network, stretching over 2 000 km.

Also speaking to the ‘Financial Times’, quantum physicist Tim Byrnes, based at New York University’s (NYU) Shanghai campus commented: ‘China has achieved staggering things with quantum research… It’s amazing how quickly China has gotten on with quantum research projects that would be too expensive to do elsewhere… quantum communication has been taken up by the commercial sector much more in China compared to other countries, which means it is likely to pull ahead of Europe and US in the field of quantum communication.’

However, Europe is also determined to also be at the forefront of the ‘quantum revolution’ which promises to be one of the major defining technological phenomena of the twenty-first century. The EU has invested EUR 550 million into quantum technologies and has provided policy support to researchers through the 2016 Quantum Manifesto.

Moreover, with China’s latest achievement (and a previous one already notched up from July 2017 when its quantum satellite – the world’s first – sent a message to Earth on a quantum communication channel), it looks like the race to be crowned the world’s foremost quantum power is well and truly underway…

Prior to this latest announcement, Chinese scientists had published work about quantum satellite communications, a development that makes their imminent terrestrial quantum network possible. Gabriel Popkin wrote about the quantum satellite in a June 15, 2017 article Science magazine,

Quantum entanglement—physics at its strangest—has moved out of this world and into space. In a study that shows China’s growing mastery of both the quantum world and space science, a team of physicists reports that it sent eerily intertwined quantum particles from a satellite to ground stations separated by 1200 kilometers, smashing the previous world record. The result is a stepping stone to ultrasecure communication networks and, eventually, a space-based quantum internet.

“It’s a huge, major achievement,” says Thomas Jennewein, a physicist at the University of Waterloo in Canada. “They started with this bold idea and managed to do it.”

Entanglement involves putting objects in the peculiar limbo of quantum superposition, in which an object’s quantum properties occupy multiple states at once: like Schrödinger’s cat, dead and alive at the same time. Then those quantum states are shared among multiple objects. Physicists have entangled particles such as electrons and photons, as well as larger objects such as superconducting electric circuits.

Theoretically, even if entangled objects are separated, their precarious quantum states should remain linked until one of them is measured or disturbed. That measurement instantly determines the state of the other object, no matter how far away. The idea is so counterintuitive that Albert Einstein mocked it as “spooky action at a distance.”

Starting in the 1970s, however, physicists began testing the effect over increasing distances. In 2015, the most sophisticated of these tests, which involved measuring entangled electrons 1.3 kilometers apart, showed once again that spooky action is real.

Beyond the fundamental result, such experiments also point to the possibility of hack-proof communications. Long strings of entangled photons, shared between distant locations, can be “quantum keys” that secure communications. Anyone trying to eavesdrop on a quantum-encrypted message would disrupt the shared key, alerting everyone to a compromised channel.

But entangled photons degrade rapidly as they pass through the air or optical fibers. So far, the farthest anyone has sent a quantum key is a few hundred kilometers. “Quantum repeaters” that rebroadcast quantum information could extend a network’s reach, but they aren’t yet mature. Many physicists have dreamed instead of using satellites to send quantum information through the near-vacuum of space. “Once you have satellites distributing your quantum signals throughout the globe, you’ve done it,” says Verónica Fernández Mármol, a physicist at the Spanish National Research Council in Madrid. …

Popkin goes on to detail the process for making the discovery in easily accessible (for the most part) writing and in a video and a graphic.

Russell Brandom writing for The Verge in a June 15, 2017 article about the Chinese quantum satellite adds detail about previous work and teams in other countries also working on the challenge (Note: Links have been removed),

Quantum networking has already shown promise in terrestrial fiber networks, where specialized routing equipment can perform the same trick over conventional fiber-optic cable. The first such network was a DARPA-funded connection established in 2003 between Harvard, Boston University, and a private lab. In the years since, a number of companies have tried to build more ambitious connections. The Swiss company ID Quantique has mapped out a quantum network that would connect many of North America’s largest data centers; in China, a separate team is working on a 2,000-kilometer quantum link between Beijing and Shanghai, which would rely on fiber to span an even greater distance than the satellite link. Still, the nature of fiber places strict limits on how far a single photon can travel.

According to ID Quantique, a reliable satellite link could connect the existing fiber networks into a single globe-spanning quantum network. “This proves the feasibility of quantum communications from space,” ID Quantique CEO Gregoire Ribordy tells The Verge. “The vision is that you have regional quantum key distribution networks over fiber, which can connect to each other through the satellite link.”

China isn’t the only country working on bringing quantum networks to space. A collaboration between the UK’s University of Strathclyde and the National University of Singapore is hoping to produce the same entanglement in cheap, readymade satellites called Cubesats. A Canadian team is also developing a method of producing entangled photons on the ground before sending them into space.

I wonder if there’s going to be an invitational event for scientists around the world to celebrate the launch.