fabric | rblg

By fabric | ch

-----

As we continue to lack a decent search engine on this blog and as we don't use a "tag cloud" ... This post could help navigate through the updated content on | rblg (as of 09.2023), via all its tags!

FIND BELOW ALL THE TAGS THAT CAN BE USED TO NAVIGATE IN THE CONTENTS OF | RBLG BLOG:

(to be seen just below if you're navigating on the blog's html pages or here for rss readers)

--

Note that we had to hit the "pause" button on our reblogging activities a while ago (mainly because we ran out of time, but also because we received complaints from a major image stock company about some images that were displayed on | rblg, an activity that we felt was still "fair use" - we've never made any money or advertised on this site).

Nevertheless, we continue to publish from time to time information on the activities of fabric | ch, or content directly related to its work (documentation).

Note: ... and of course, this could help HER too, to take better care of him/her.... Or maybe to start develop a Softlove?

Via MIT Technology Review

-----

Motion, audio, and location data harvested from a smartphone can be analyzed to accurately predict stress or depression.  

By Tom Simonite

Many smartphone apps use a device’s sensors to try to measure people’s physical well-being, for example by counting every step they take. A new app developed by researchers at Dartmouth College suggests that a phone’s sensors can also be used to peek inside a person’s mind and gauge mental health.

When 48 students let the app collect information from their phones for an entire 10-week term, patterns in the data matched up with changes in stress, depression, and loneliness that showed up when they took the kind of surveys doctors use to assess their patients’ mood and mental health. Trends in the phone data also correlated with students’ grades.

The results suggest that smartphone apps could offer people and doctors new ways to manage mental well-being, says Andrew Campbell, the Dartmouth professor who led the research.

Previous studies have shown that custom-built mobile gadgets could indirectly gauge mental states. The Dartmouth study, however, used Android smartphones like those owned by millions of people, says Campbell. “We’re the first to use standard phones and sensors that are just carried without any user interaction,” he says. A paper on the research was presented last week at the ACM International Joint Conference on Pervasive and Ubiquitous Computing in Seattle.

Campbell’s app, called StudentLife, collects data including a phone’s motion and location and the timing of calls and texts, and occasionally activates the microphone on a device to run software that can tell if a conversation is taking place nearby. Algorithms process that information into logs of a person’s physical activity, communication patterns, sleeping patterns, visits to different places, and an estimate of how often they were involved in face-to-face conversation. Many changes in those patterns were found to correlate significantly with changes in measures of depression, loneliness, and stress. For example, decline in exposure to face-to-face conversations was indicative of depression.

The surveys used as a benchmark for mental health in the study are more normally used by doctors to assess patients who seek help for mental health conditions. In the future, data from a person’s phone could provide a richer picture to augment a one-off survey when a person seeks help, says Campbell. He is also planning further research into how data from his app might be used to tip off individuals or their caregivers when behavioral patterns indicate that their mental health could be changing. In the case of students, that approach could provide a way to reduce dropout rates or help people improve their academic performance, says Campbell.

“Intervention is the next step,” he says. “It could be something simple like telling a person they should go and engage in conversations to improve their mood, or that, statistically, if you party only three nights a week you will get more decent grades.” Campbell is also working on a study testing whether a similar app could help predict relapses in people with schizophrenia.

A startup called Ginger.io with an app similar to Campbell’s is already testing similar ideas with some health-care providers. In one trial with diabetics, changes in a person’s behavior triggered an alert to nurses, who reach out to make sure that the patient was adhering to his medication (see “Smartphone Tracker Gives Doctors Remote Viewing Powers”).

Anmol Madan, CEO and cofounder of Ginger.io, says the Dartmouth study adds to the evidence that those ideas are valuable. However, he notes, much larger studies are needed to really convince doctors and health-care providers to adopt a new approach. Ginger.io has found similar associations between its own data and clinical scales for depression, says Madan, although results have not been published.

Both Ginger.io and the Dartmouth work were inspired by research at the MIT Media Lab that established the idea that data from personal devices offers a new way to study human behavior (see “TR10: Social Physics”). Yaniv Altshuler, a researcher who helped pioneer that approach, says the Dartmouth study is an interesting addition to that body of work, but it’s also a reminder that there will be downsides to the mobile data trove. Being able to use mobile devices to learn very sensitive information about people could raise new privacy risks.

Campbell—who got clearance for his study from an ethical review board—notes that his results show how existing privacy rules can be left behind by data mining. A health-care provider collecting data using standard mental health surveys would be bound by HIPAA data privacy regulations in the United States. It’s less clear what rules apply when that same data is derived from a phone app. “If you have signals you can use to work out, say, that I am a manic depressive, what governs use of that data is not well accepted,” he says.

Whatever the answer, apps that log the kind of rich data Campbell collected are likely to become more common. Smartphone sensors have become much more energy-efficient, so detailed, round-the-clock data logging is now feasible without wiping out battery life. “As of six months ago phones got to the point where we could do 24/7 sensing,” says Campbell. “All the technology has now arrived that you can do these things.”

Following last month catastrophic measures in Paris. Not a funny information, yet good to know. Air quality will undoubtedly become a very big (geo)political issue in the coming years, certainly an engineering one too.

Via Treehugger

-----

CC BY-ND 2.0 Flickr

The World Health Organization (WHO) released a report last year showing that air pollution killed more people than AIDS and malaria combined. It was based on 2010 figures, which were the latest available at the time. There's now a new study which looked at 2012 data, and it seems like things are even worse than we first believed.

“The risks from air pollution are now far greater than previously thought or understood, particularly for heart disease and strokes,” says Dr Maria Neira, Director of WHO’s Department for Public Health, Environmental and Social Determinants of Health. “Few risks have a greater impact on global health today than air pollution; the evidence signals the need for concerted action to clean up the air we all breathe.”

The WHO found that outdoor air pollution was linked to an estimated 3.7 million deaths in 2012 from urban and rural sources worldwide, and indoor air pollution, mostly caused by cooking (!) on inefficient coal and biomass stoves was linked to 4.3 million deaths in 2012.

Because many people are exposed to both indoor and outdoor air pollution, there is overlap in these two numbers, but the WHO estimates that the total number of victims from air pollution in 2012 was around 7 million, which is tragic since it would take relatively little in many of those cases to save livesFlickr/CC BY-SA 2.0

And it's not really a question of money, since the health costs and lost productivity caused by air pollution are higher in the long-term...

Here's how the health impacts break down for both indoor and outdoor air pollution:

Outdoor air pollution-caused deaths – breakdown by disease:

• 40% – ischaemic heart disease;
• 40% – stroke;
• 11% – chronic obstructive pulmonary disease (COPD);
• 6% - lung cancer; and
• 3% – acute lower respiratory infections in children.

Indoor air pollution-caused deaths – breakdown by disease:

• 34% - stroke;
• 26% - ischaemic heart disease;
• 22% - COPD;
• 12% - acute lower respiratory infections in children; and
• 6% - lung cancer

Wikimedia/CC BY-SA 3.0

There are lots of big obvious things we can do, such as replace inefficient and pollution small stoves in poorer countries with better stoves or even better, electric cooking. Many countries, like China, could also do a lot to cut pollution at their coal plants and over time phase out coal (which isn't just a problem for air pollution, but also for water and ground pollution and global warming). There are all these low-hanging fruits that would make a huge difference. To see how dramatic the improvement could be, just look at these photos showing how bad the situation was in the US not so long ago (China is just repeating what has gone on elsewhere...).

One thing we can do to help: plant more trees! Recent studies show that they are even better at filtering the air in urban areas than we previously thought.

© Michael Graham Richard

Via World Health Organization

Related on TreeHugger.com:

• Think Air Quality Regulations Don't Matter? Look at Pittsburgh in the 1940s!
• This scary map shows the health impacts of coal power plants in China
• The smog in Los Angeles doesn't quite sting like it used to, but there's still work to be done
• Coal pollution in China lowers life expectancy by 5 years
• What kills more people than AIDS and malaria combined? Air pollution
• Trees are awesome: Study shows tree leaves can capture 50%+ of particulate matter pollution

Via Le Monde, via Philippe Rahm Architectes

-----

Par Philippe Rahm

A quelques semaines des élections municipales, il n'a jamais fait aussi beau à Paris. Le soleil brille, il fait chaud et pourtant on nous déconseille de sortir dehors à cause de la pollution de l'air qui atteint des sommets. Mauvaise nouvelle pourdéjeuner en terrasse. C'est assez paradoxal, ce beau temps qui ne l'est en réalité pas. Cela ne va pas de soi et il nous faudra réviser à l'avenir nos critère du beau et du laid, ne plus se fier au perceptible, au soleil, à la température et au ciel bleu, mais plutôt à l'invisible et se dire le matin qu'il fait beau seulement quand le bulletin météo annoncera pour la journée un taux bas de particules fines dans l'air.

Le nuage de pollution à Paris, jeudi 13 mars. | AP/Christophe Ena

Mais si le bulletin météo classique nous informait de l'état du ciel selon des forces naturelles qui nous dépassaient et contre lequel on ne pouvait choisir que de prendre ou pas son parapluie, le problème de la pollution des villes est une conséquence des activités humaines. Et parce qu'il nous concerne tous, parce qu'il définit la réalité chimique de nos rues et de nos places, parce qu'il menace notre santé, il est éminemment politique. J'affirmerai même qu'il est la raison d'être fondamentale du politique: celle de nous assurer à tous une bonne santé. Le politique est né de la gestion sanitaire de la ville et de la définition de ses valeurs publics que l'on retrouve inscrit aujourd'hui dans les règlements et les plans d'urbanisme: avoir de la lumière naturelle dans toutes les chambres, boire de l'eau potable, évacuer et traiter les déchets et les excréments. En-dessous de son interprétation culturelle, l'Histoire de l'urbanisme et du politique est finalement celle d'une conquête physiologique, pour les villes, pour les hommes, du bien-être, du confort, de la bonne santé.

Et respirer un air sain en ville ? Ne pourrait-on pas penser que c'est finalement cela que l'on demande aujourd'hui au politique ? La demande n'est pas neuve. Au début du XIXe siècle, Rambuteau, préfet de Paris, avait tracé la rue du même nom au coeur du Marais pour faire circuler l'air pour éviter le confinement des germes. Dans sa suite, le préfet Haussmann traçait les boulevards dans un même soucis d'hygiène, y plantait des arbres pour les tempérer, créaient des parcs (les Buttes-Chaumont, le bois de Boulogne, etc.) comme Olmsted avec Central Park à New-York, conçues à la manière de poumons verts pour rafraîchir la ville en été, absorber les poussières et la pollution, améliorer la qualité de l'air, parce qu'à l'époque, on mourrait réellement de tuberculoses et des autres maladies bactériennes dans les villes.

Mais toutes ces mesures sanitaires ont perdu leur légitimité avec la découverte de la pénicilline et la diffusion des antibiotique à partir les années 1950. À quoi cela servait-il encore de raser les petites rues sans air et obscures du Moyen-Âge, de déplacer les habitations dans de vastes parcs de verdure si l'on pouvait chasser la maladie simplement avec un antibiotique à avaler deux fois par jour durant une semaine. Etait-ce vraiment raisonnable d'élargir les petites fenêtres des vieilles maisons en pierre, d'enlever les toits en pentes pour en faire des toits terrasses, si en réalité, on pouvait éviter la maladie avec un peu de pénicilline ?

Si l'on a arrêté de démolir les vieux quartiers des villes européennes à partir des années 1970, si on a commencé à trouver du charme aux ruelles tortueuses et aux vieilles maisons étroites du Moyen-Âge, aux intérieurs sombres et humides des centres villes, si les prix des arrondissements historiques que tout le monde désertait jusqu'aux années 1970 ont commencé à grimper, si des mesures de protections du patrimoine ont été votées, si ces vielles pierres sont devenues des témoins de notre civilisation et un atout touristique et économique, si l'on est revenu habiter les vieux centres historiques, on le doit peut-être autant aux théories post-modernes de Bernard Huet, l'architecte des la place Stalingrad et des Champs-Elysées dans les années 1980, qu'à la découverte médicale des antibiotiques.

Mais les antibiotiques ne peuvent rien contre la pollution aux particules fines d'aujourd'hui. Cela veut-il dire que nous allons assister au même phénomène que durant la première partie du XXe siècle, celle d'une désertion des centre-villes, d'une perte de valeur immobilière des quartiers centraux de Paris, au profit des banlieues et des campagnes où l'air n'est pas polluée ? La ville que l'on a réappris à aimer et à habiter à la fin du XXe siècle va t-elle retombée dans la désolation ? On peut tenter de croire, dans un monde globalisé, que la mission de la politique locale est aujourd'hui de réduire le chômage ou de diminuer les impôts. Mais plus profondément, le politique se doit aujourd'hui de reprendre en main sa mission fondamentale, celle d'assurer la qualité de nos biens publics, celle de nous offrir en ville, après l'eau et la lumière, un air de qualité, seule garantie pour la prospérité sociale et économique future.

Philippe Rahm construit en ce moment un parc de 70 hectares pour la ville de Taichung à Taiwan, livré en décembre 2015 qui propose d'atténuer la chaleur, l'humidité et la pollution de l'air par l'emploi du végétal et de technologies vertes.

Philippe Rahm (Architecte et enseignant aux Universités de Princeton et Harvard (Etats-Unis))

Related Links:

Via MIT Technology Review

-----

New electronic tattoos could help monitor health during normal daily activities.

By Mike Orcutt on March 11, 2013

Electronic tattoo: The image shows a colorized micrograph of an ultrathin mesh electronic system mounted on a skin replica.

Taking advantage of recent advances in flexible electronics, researchers have devised a way to “print” devices directly onto the skin so people can wear them for an extended period while performing normal daily activities. Such systems could be used to track health and monitor healing near the skin’s surface, as in the case of surgical wounds.

So-called “epidermal electronics” were demonstrated previously in research from the lab of John Rogers, a materials scientist at the University of Illinois at Urbana-Champaign; the devices consist of ultrathin electrodes, electronics, sensors, and wireless power and communication systems. In theory, they could attach to the skin and record and transmit electrophysiological measurements for medical purposes. These early versions of the technology, which were designed to be applied to a thin, soft elastomer backing, were “fine for an office environment,” says Rogers, “but if you wanted to go swimming or take a shower they weren’t able to hold up.” Now, Rogers and his coworkers have figured out how to print the electronics right on the skin, making the device more durable and rugged.

“What we’ve found is that you don’t even need the elastomer backing,” Rogers says. “You can use a rubber stamp to just deliver the ultrathin mesh electronics directly to the surface of the skin.” The researchers also found that they could use commercially available “spray-on bandage” products to add a thin protective layer and bond the system to the skin in a “very robust way,” he says.

Eliminating the elastomer backing makes the device one-thirtieth as thick, and thus “more conformal to the kind of roughness that’s present naturally on the surface of the skin,” says Rogers. It can be worn for up to two weeks before the skin’s natural exfoliation process causes it to flake off.

During the two weeks that it’s attached, the device can measure things like temperature, strain, and the hydration state of the skin, all of which are useful in tracking general health and wellness. One specific application could be to monitor wound healing: if a doctor or nurse attached the system near a surgical wound before the patient left the hospital, it could take measurements and transmit the information wirelessly to the health-care providers.

Rogers says his lab is now focused on developing and refining wireless power sources and communication systems that could be integrated into the system. He says the technology could potentially be commercialized by MC10 (see “Making Stretchable Electronics”), a company he cofounded in 2008. If things go as planned, says Rogers, in about a year and half the company will be developing more sophisticated systems “that really do begin to look like the ones that we’re publishing on now.”

Via @ptrckkllr

-----

The "Measured Life" on MIT Tech Review - Could we think of an architecture that "collaborates" with physiological and/or neurological inputs? http://bit.ly/kWL5D8

Personal comment:

Following this article by MIT Technology Review magazine and the previous post on | rblg about "Open Soure Architecture", considering also that architecture is always a way to negotiate/mitigate (a lot or a few) our relation to the now and here (in every sense, both physiological, neurological, visual, cultural, social, etc. --and so far that the "now" can become the "not now" and the "here" the "there"! (mediated experiences)), could we think of a data based architecture (open data from health and RL monitoring --in addition to environmental sensors and online data--) that would collaborate with those health inputs?

Via MIT Technology Review

-----

Device maps the chemistry of the whole brain in moving animals.

By Katherine Bourzac++

Wearable PET: A rat’s head fits in the circular opening of this device, which is surrounded by miniaturized detectors and electronics. Credit: Brookhaven National Laboratory

A tiny wearable scanner has been used to track chemical activity in the brains of unrestrained animals for the first time. By revealing neurological circuitry as the subjects perform normal tasks, researchers say, the technology could greatly broaden the understanding of learning, addiction, depression, and other conditions.

The device was designed to be used with rats—the main animal model used by behavioral neuroscientists. But the researchers who developed the device, at Brookhaven National Laboratory, say it would be straightforward to engineer a similar device for people.

Positron emission tomography, or PET, is already broadly used in neuroscience research and in clinical treatment. It allows researchers to track the location of radioactively labeled neurotransmitters (the chemicals that carry signals between neurons) or drugs within the brain. Images of the way neurotransmitters and drugs move through the brain can reveal the processes that underpin normal behavior such as learning as well as pathologies including addiction. PET has been used to map drug-binding sites in the brains of addicts and healthy people, and to study how those sites change over time and with therapy.

A conventional PET scanner is so large that these studies have to be performed with the subject lying inside a large tube. Large photomultiplier tubes amplify signals from gamma rays emitted by labeled chemicals in the brain. The signals then pass through a desk-sized rack of electronics that process them and map them to a particular region of the brain. To get good readings during animal studies, the subjects are typically anaesthetized or restrained. What's being measured is not normal waking behavior.

"We have very limited data about what brains do in the real world," says Paul Glimcher, professor of neuroscience, economics, and psychology at New York University. Glimcher was not involved with the work.

The new portable scanner is designed to provide the same information about brain chemistry while an animal behaves naturally. It is small and lightweight enough that a rat can carry it around on its head. "[The rat] can move freely, interact with other animals, and at the same time we can make a 3-D map of, for example, dopamine receptors throughout the brain," says David Schlyer, a senior scientist at Brookhaven who led the work.

Schlyer's group worked for years to engineer a miniature PET scanner that could be worn by a moving subject. The device consists of a metal ring hanging from a support structure that helps support its weight and allows the rat to move around. The rat's head goes inside the ring, which contains both detectors and electronics.
 

The key to miniaturizing the device, Schlyer says, was integrating all the electronics for each detector in the ring on a single, specialized chip. An avalanche photodiode also replaces the large photomultiplier tubes of conventional PET, amplifying the signals emitted by the labeled chemicals in the brain. "The rats take about an hour to acclimate, then begin behaving normally," says Schlyer. The Brookhaven device is described this week in the journal Nature Methods.

The Brookhaven group used the scanner to map the dopamine receptors throughout the entire brains of of moving rats for the first time. Other groups, including Glimcher's, have previously used invasive probes to study dopamine levels in cubic-millimeter-sized portions of the brain in unrestrained animals, but have not been able to look at the entire brain.

Glimcher describes one of several experiments that could be done with the portable device. Researchers know that addicts who have successfully completed rehab are at great risk of relapse if they visit the places they associate with the drug, probably because their brain has been chemically rewired to respond to these associations. Glimcher imagines studies in rats that map brain chemistry when the animals are allowed to decide whether or not to take a drug, and when they wander into a location they have learned to associate with the drug.

"We don't really understand that well how circuits in [different parts of the brain] interact in addiction," says Glimcher. "To even get to a place where I can give you a clinical hypothesis, we have got to get more basic information. This is the breakthrough that could make that possible."

PET is not as broadly used in studies involving people as other neuroimaging methods because of the small but significant exposure to radiation that's necessary. Still, the Brookhaven researchers say it would be possible to make a wearable PET scanner that fits inside something resembling a football helmet. Joseph Huston, chair of the Center for Behavioral Neurosciences at the University of Düsseldorf, says the Brookhaven group has done "an incredible service" to the neuroscience community in developing the device. "The rat is the most important model for the brain—everything basic [we know] about learning, feeding, fear, sex, is based on work in the rat."

Schlyer says his group has talked with a few companies about licensing a commercial version of the device. But for now, they are mainly planning further behavioral studies in their lab. Mapping dopamine in waking animals could provide insights into a wide range of normal and pathological conditions such as the movement problems associated with Parkinson's disease. But dopamine is just one of the many brain chemicals the group can map. Schlyer says they will also study the sexual behavior of rats.

The group is also working on another instrument that combines PET with magnetic resonance imaging to provide richer information about tissue structure and function. They will start a clinical trial of this device in breast cancer patients next month.

Copyright Technology Review 2011.

-----

You can also read on the same subject: An On-Off Switch for Anxiety (MIT Tech Review as well)

Personal comment:

I blog this article from the MIT because I more and more believe that researches in neuroscience will have a huge incidence in the future on how we understand the way humans (and animals) and possibly artificial intelligences interact with each other, with their environment, with situations, etc. and how these behaviours can trigger specific patterns in the brain (neural, chemical, electric activities and hormones secretions, etc.) and/or in the body, which in return certainly condition what we "feel" about this situation. This would also mean that a "feeling" is somehow also very material (brain pattern, hormones, etc.)

So to say, I believe that spatial conditions in architecture or environments triggers certain brain conditions that could be in fact the direct "way" we experience this environment (comfortable, agressive, "nice", "ugly", hot, cold, ...).

One step further and we could possibly sometimes replace the space itself (or its experience) by it's brain pattern (drugs?) triggering the same feeling.

For my part, I will keep an eye full of curiosity on the results of researches in neurosciences ...

Via Information aesthetics

-----

Related Links: