Friday, November 13, 2020

The way we use data is a life or death matter – from the refugee crisis to COVID-19

by Doug Specht and Monika Halkort, The Conversation
One of Nightingale’s diagrams – in this case demonstrating the causes of mortality in the army in the East, published in 1858. Credit: Wikimedia Commons

In moments of crisis we often turn to data in an attempt to both understand the situation we are in, and to look for answers of how to escape.

In response to COVID-19, governments around the world have employed algorithms, used data from apps installed on our phones, alongside CCTV, facial recognition and other data gathering tools to fight the pandemic. Data is being used to drive the daily movements of billions of people in a way that many of us have never before seen. People are being instructed to stay home, go to work, wear masks, or send their children to school based on the invisible hand of data.

Yet 2020 has also highlighted the dangers of this. The interpretations and collection of this data are not without their problems—doctors and politicians looking at the same data can draw wildly different conclusions about the right course of action.

Without doubt, we should be harnessing all the tools we can in the fight to save lives, but the pandemic has also brought many issues with data mapping to the fore. COVID-19 disproportionately affects the poorest people in many countries, as well as black and Asian communities. This is is no small part due to data-driven regulations designed to stop the spread of the disease; often modelled on assumptions made by the people who design and run them.

These inequalities already existed, but models that slow a spread through the closing of offices, reduced transport and home schooling put enormous pressures on the poorest and most vulnerable members of society, who are not privileged enough to change their working or living arrangements. As digital technologies are further introduced, such as mobile track and trace, these communities will be marginalised even further. Even in the richest countries, those without a smartphone will be missed from any digital tracing apps designed to protect people.

While these practices are newly confronting to many, such technologies—and their failings—have long been used to shape the lives, and deaths, of millions around the world. In the digital age, mapping and data continue to be seen as a fix-all. More people than ever are subjected to having their lives dictated not by elected officials, but by black box algorithms, maps, and data visualisations. As our attempts to hold the pandemic at bay continue, we must look at lessons from other crises and push for a more just world.


To do this, it is crucial that people understand the slippery quality of data. Statistics seem solid to many people. But data can mislead, and understanding how this happens is a huge step in the right direction of using data to improve the lives of millions of people around the world, and to tackling global crises such as COVID-19.

There are three main issues with data.

1. Dark data

The first issue seems on the surface the easiest to fix. Dark data refers to data that is not collected at all. Many people believe that if we collected enough data about everything then we could solve any issue. Yet it is impossible to collect everything: there will always be dark data.

We don't, for example, collect data about or from children in the same way as adults because of laws around consent. Data is often collected through tools that are not available to everyone—mobile phones share huge amounts of information, but not everybody has a phone.

The real trouble comes due to what are known as epistemic and ideological assumptions. These assumptions mean that even with the best intentions, we cannot gather data about things that we assume we do not need, or that we do not know that we need data about. Stark examples include how frequently women are excluded from trials and testing, either forgotten about, or based upon assumptions they are the same as men. This can have deadly consequences.

At times our biases also push us towards not collecting data that we sense goes against our own interests or views of the world. A surprisingly powerful urge to retain our status quo paralyses us from breaking through this barrier.

2. Data positivism

The issues of dark data are closely linked to another issue, known as data positivism. This relates to what we do with the data we have captured.

It is all but impossible to present all the data we find. This might be because we have too much of it, or because we are trying to tell a specific story with our data. As we turn the data in to maps and visualisations, we must make choices about what is and isn't included, which often takes the form of prioritising one type of knowledge over another.

Data that fits well with traditional mapping practices will be more likely to be included on a map than other forms of information. This can turn extremely complex and competing sets of ideas into overly simple sets of data, which in turn is transformed into an even further simplified data visualisation. These visualisations are rarely questioned, because the way they are made is beyond the expertise of most people. The expertise of the creator is trusted wholesale—they create a false sense of certainty, but one we hold on to, especially if they reinforce our status quo.

3. Data washing

Then there's the issue of data washing. Let's assume that you have avoided the problems of dark data and collected everything, including the data you didn't know you needed, and that you have navigated data positivism in the cleaning and preparing of your data.

You then come to present your findings. Perhaps they don't really show the story you wanted, or show the opposite of what you thought—what do you do? Do you tweak things so they look different? Do you skip that diagram and move to another that shows something closer to your hypothesis? Do you choose not to share anything at all?

These seem like easy questions to answer, easy to stay on the correct side of ethical practice. But even with the best of intentions we can dismiss our own data when it doesn't conform to pre-held assumptions. We might tell ourselves we must have made a mistake in data collection, so shouldn't share it. Or we might think: that doesn't tell a good story, I'll leave it out. Or perhaps: this should be more dramatic, I'll change the colours and design to make it pop.

These are not always disingenuous, but these seemingly innocent decisions conceal or obscure data and knowledge. They are hard to avoid even with the best of intentions, and when it comes to issues of controversy, the best of intentions is often left wanting.

In turning people into pure data, life and death decisions are made about people without their consent. These are the dehumanising effects of an algorithm-driven world.

Lessons from history

Mapping and data visualisation have long been used in times of crisis to help us make sense of what is happening, and to find ways forwards that might preserve lives and create a better future. Prominent examples include Thomas Shapter's 1832 maps of cholera in Exeter, UK, followed by the more famous maps of cholera deaths produced by John Snow in London. These maps and their authors were credited with bringing new understanding of waterborne disease and saving many lives.

Florence Nightingale, whose name was given over to the emergency hospitals constructed around the UK in the wake of COVID-19, was also a statistician.

In 1861, as part of her consultation to the US army about care for Civil War casualties, Nightingale made data visualisations, and a lot of them. She created bar charts, stacked bars, honeycomb density plots, and 100% area plots.

Nightingale's data visualisations were not about just showing what was happening, they were designed to call for change; to indicate required reform. She also invented a new type of chart to help her arguments: a comparative polar-area diagram known today as the Nightingale rose (she called them "wedges"). Her most famous diagrams showed the changes in survival rates of patients following sanitary improvements, such as washing hands regularly, and emphasised the effectiveness of these improvements by difference in size.
Shapter’s 1832 maps of cholera. Credit: Wikimedia Commons

Nightingale, Shapter, Snow, and many others have used charts and diagrams to build graphic arguments and easy-to-understand comparisons that saved many lives. But when looking back at them, we often only consider the final product (map or chart), rather than the process of their creation. Yet at the time, these works were widely dismissed, and often misinterpreted as supporting the prevailing thoughts of the period.

There were many who did not want to enact the reforms proposed by Nightingale, although they are now seen as transformative in how hospitals are run. And Snow's maps became more famous than Shapter's not only because they were of London, but because of the evocative story of him striding onto Broad Street and tearing off the handle of the community water pump. What's forgotten is that this act was required precisely because his data and mappings were initially misinterpreted by those who chose to see Snow's maps as supporting their own theories—an example of confirmation bias where we read data in a way that suits our own views.

Both Snow and Nightingale saved countless lives through their data work, but even they came up against many of the issues of dark data, data positivism and misinterpretation.

In the digital age, where data is collected on a massive scale, often without consent, and is increasingly organised, sorted and interpreted by computers and algorithms, data has become seen as both a fix all for everything, and a dangerous commodity. The use of data to track people and dictate their actions can mean the difference between life and death in a very real and present sense. While that has been made clear to many of us in relation to COVID-19, there are many more stories of data, crisis and the fight for survival.

In our new book, Mapping Crisis, we look at the experiences of those who have been mapped or had their complex lives reduced to data, aerial photos or reports. From this we are able to draw out better ways of working, and better understandings of the various effects the secret world of data has on our everyday lives.

One of our examples is the case of the Mediterranean migrant crisis.

Life, death and data

The Mediterranean Sea is a place that for many conjures images of sun-kissed beaches, fine waterfront dining and turquoise seas. But this stretch of water is also one of the most heavily policed in the world. All movements in the region, whether deemed legal or not, are extensively mapped and monitored by the European Union.

While individual countries on the Mediterranean have long fortified their borders, the formation of the EU effectively created a single border along the northern shores. Since then, European states have continued to put in place an ever more comprehensive, and complex, system for monitoring and exchanging information about irregular migrants trying to reach the continent.

Running under the label EUROSUR, the system combines high-resolution satellite images, long-endurance drones, automated vessel identification systems and seaborne military radars that allow for situational reports and risk analyses in next to real time. These reports give daily updates on "successfully" intercepted migrant vessels.

But this highly sophisticated tool of mapping the movements of migrants is only interested in those who are stopped. The extensive databases held by EU states hold next to no information about those who die or go missing as they attempt to seek refuge. Those who make it onto European shores, by contrast, are rigorously screened for biometric data, including electronic fingerprints, iris scans and medical checks, and also for personal details about their lives to verify their identity.

According to the International Organisation for Migration (IOM), more than 19,000 people have drowned or gone missing on their way to Europe over the last decade. These figures are only estimates: there is no comprehensive system in place to document migrant fatalities across EU member states. European governments do not consider migrant deaths part of their legal responsibility and so do not keep a regular track record of them. This leaves humanitarian agencies like IOM dependent on eyewitness accounts and reports from search and rescue NGOs, medical examiners or the media.

The lack of knowledge regarding migrant deaths reveals how patchy real time tracking of movement across borders really is. It also serves political agendas, where data on the "risk" to Europe from migration can easily be found, but data on the true life and death risks of crossing the Mediterranean is occluded from public knowledge. This makes it easier to present migrants as a threat, rather than as refugees putting everything on the line to seek safety.

And for Frontex, the European Border and Coast Guard Agency, this provides a convenient backdrop to legitimise the increasing militarisation of Europe's borders under the pretext of preventing further deaths and human suffering.

Along the border, digital maps and statistical charts operate to reinforce the political and social aims of the organisations and governments that collate them. Data is selectively collected, and selectively presented by the EU and European governments, extending Europe's migration policy of deterrence and containment deep into the digital domain.

In the specific context of the Mediterranean, this selective reading of data not only minimises the chances of successful asylum applications for those lingering in the reception centres of Greece and Turkey, it also allows governments and the EU as a whole to evade any legal and political responsibility for the human cost of border policing. By not collecting data on those who drown, the EU can hide the fact that for all its sophisticated mapping and tracking technologies, they have no interest in using the data to save lives, or for rescuing men, women and children lost at sea.

No records of deaths means no records of how many European governments watched drown.

Radical data mapping

That said, Europe's wilful "unseeing" of migrants has not gone uncontested. Numerous civil society initiatives and humanitarian activists have made it a point to keep a regular track record of those who die or go missing and to hold Europe to account.

Initiatives such as the List of Deaths, compiled by organisations such as UNITED and FORTRESS Europe, meticulously document each and every reported incident, using these figures for advocating a radical revision of European asylum policy. While these counter-mappings certainly manage to disrupt the wall of silence surrounding the human cost of border policing, the death lists have done little to disrupt or redirect the priorities of the state.

The transnational network Alarm Phone marks a rare exception in this regard. Alarm Phone offers a 24/7 hotline for migrants in distress. The organisation secures their rescue by notifying national coastguards and port authorities of unfolding emergencies at sea. Using a combination of mobile phones and online messaging apps such as Facebook, Viber, WhatsApp and Skype, alongside logistical platforms such as AIS (The global Automatic identification system used for vessel tracking) and call management software, they attempt to preempt deaths, and prompt action to rescue people at risk of drowning.

The organisation has aided thousands of people in distress. The summer of 2020 was an especially difficult one. With Europe's borders closed tighter than ever, Alarm Phone was inundated with calls. In the seven days following August 13, nearly 900 people on 14 boats called Alarm Phone with pleas for help. Alarm Phone raised the alert, and while some were helped to safety, either in Europe or Libya, more than 260 people perished or remain missing.

By bring together technology, networking capacities, and through solidarity and compassion the volunteer network is able to both aid migrants in times of trouble, and to help them pass more effectively under the radar of the EU. The hotline is more than just a distress call: it brings together the knowledge of migrants into effective "maps" that aid in the logistics of crossing the med. In doing so it also highlights the wilful misuse, and sporadic data collections of the EU member states.

A warning

A lot can be learned from the data mapping of the migrant crisis. Maps and data can only ever be partial representations of reality, but as we gather more and more data we can be lured into thinking that these representations are infallible.

Yet, it is clear from the example above that the processes in place do not preserve life: they are tools of control rather than support. There are glimmers of hope in the counter-mapping projects that have arisen to give voice to those who are condemned to silence as they seek a new life. But even the most well-intentioned projects can fall foul of misunderstanding data. Data tends to have a life of its own.

COVID-19 has brought the world of data-driven crisis management to the doorstep of the whole world, but these are not new experiences. Many people have already been reduced to data points. From the Mediterranean to school grades, lives are increasingly dictated by algorithm, computation, and the biases built into these technologies. The way in which we use data is heavily influenced by politics, a desire to maintain the status quo and by conscious and unconscious decisions made at every stage of the process.

So we should question data: how it is collected, and how it is deployed. But data is also important, and we must not dismiss it all outright. The world has seen a push-back against science and a growth in "alternative facts". The rise in anti-maskers, anti-vaxxers, 5G conspiracy theorists and coronavirus deniers has shown how dangerous this can be. Such arguments push backwards, not forwards. They do not seek to understand more, but are maintaining a status quo.

While some might try and twist the arguments we've presented here in order to reject science, we are instead saying that we should ask questions that take our understanding further. It is near impossible to eliminate issues caused by dark data, data washing, and data positivism. This can be purposefully, or accidental, but the effects can be far reaching.

So, next time you look at a map and or data visualisation, ask: who is this for? Whose power does it enhance or consolidate? Who is missing from the data? Who was never asked, forgotten or excluded? Who loses? And how can we do it better?


Explore further Migrant deaths are 'vastly under-reported' according to new report

Provided by The Conversation




10 reasons to stop whipping racehorses, including new research revealing the likely pain it causes

by Paul McGreevy, Bidda Jones, The Conversation
Microscopic cross-sections (400x magnification) of horse (left) and human skin. Images show the epidermis (top) and superficial dermis. Selected nerve endings are shown in red and marked with asterisks. Scale bars represent 20 micrometres. Credit: Tong et al. 2020, Author provided

Pressure is increasing on the global horse-racing industry to reconsider the use of whips in the sport.

Our research, published in the journal Animals, shows horses' skin is very similar to humans' in both thickness and the arrangement of nerve endings.

This adds to existing evidence that whipping is ineffective and unethical. Here we outline ten reasons why it's time to drop the crop.

1. Horses' skin appears just as sensitive as humans'

At the core of the debate is the question of whether horses experience pain when being whipped. A Sydney-based research team (of which one of us, Paul McGreevy, was a member) examined skin from 10 human cadavers and 20 euthanased horses under a microscope to explore any differences in their skin structure and nerve supply.

The results revealed no significant difference between humans and horses in the concentration of nerve endings in the outer, surface layer of skin.

2. Horses' skin is no thicker than humans'

The new study also found no significant difference between humans and horses in the average thickness of this outer layer.

Horses need skin that is both robust and sensitive to touch, particularly from other horses or flying insects. The inner, base layer of skin in humans is significantly thinner than in horses, but this is not where the nerve endings lie.

3. Whip-free racing already exists

Norway outlawed the whipping of racehorses in 1982. In the United Kingdom, "hands and heels" races for apprentice jockeys have been part of the racing calendar since 1999. These events, in which the least experienced (and presumably most vulnerable) jockeys race without using the whip, is at complete odds with the industry's contention that whips are essential for steering and safety. There are no reports from Norway or the UK of problems in the conduct of these races.
Credit: The Conversation

4. There's no evidence whips make racing safer…

Whip use has been claimed to be essential for the safety of horses and jockeys. However, the impact of whip use on steering and safety had not been examined until a recent study compared "whipping-free" races, in which whips are held but not used, with "whipping-permitted" races.


Races of these two types were meticulously matched for racecourse, distance, number of runners, and "going" (turf conditions on the day). A detailed examination of stewards' post-race reports revealed no difference between the two race types in movement of horses across the track and interference with other runners, and therefore no evidence whipping improves safety. This adds to evidence from jumps racing that whip use is associated with catastrophic falls.

5. …or fairer…

The gambling industry has an interest in ensuring races are run with integrity, lest punters take their dollars elsewhere. Whip use is arguably the most visible sign that jockeys are indeed trying their hardest.

But the same study of stewards' reports revealed no difference between "whipping-free" and conventional races in terms of the number of incidents related to jockey behavior, such as careless riding or jockeys "dropping their hands" (indicative of not pushing the horse to run on).

The key to a fair race is not encouraging jockeys to use the whip, but rather ensuring all jockeys are subject to the same rules.

6. … or faster

The received wisdom is that whipping any horse makes it more likely to win. However, studies have shown increased whip use does not significantly affect speed at the finishing line, and the comparison study cited above found no difference in finishing times between whipping-free and conventional races.

What's more, in "hands and heels" races, the jockey's center of mass is likely to remain directly above the horse's center of mass for more of the time, compared with when the jockeys are whipping the horses. So, the biomechanics of whip-free racing are arguably better for equine performance.


Demonstration of the effect of a whip strike on human skin.


7. Whip rules are hard to police

The most prevalent breaches of the rules around whip use involve forehand strikes on more than five occasions before the 100-meter mark (44%), and the jockey's arm being raised above shoulder height (24%). Studies of high-speed footage of 15 races revealed at least 28 rule breaches, involving nine horses, that were not recorded in stewards' reports.

There are two reasons for this: the footage seen by racing stewards is filmed head-on, and is recorded at fewer frames per second than high-resolution video now provides. Head-on footage is preferred by stewards as it allows estimations of whip use on both sides of the horse, but it makes it harder to accurately police other aspects of whip use, such as the use of excessive force.

A separate study revealed more breaches are recorded at metropolitan than country or provincial racecourses, and by riders of horses that finished first, second, or third rather than in other positions. That said, horses that finished last were also worryingly vulnerable to whip-rule breaches.

What's more, even legal whipping is likely to cause significant pain, given the similarity of human and horse skin.

8. The public supports a ban on whipping

In a recent independent poll of more than 1,500 Australian adults, 75% thought horses should not be hit with a whip in the normal course of a race. The survey also found men were more than twice as likely as women to support whipping racehorses. Even among respondents who attended races or gambled on them at least once a week, 30% disagreed with whipping.


9. Whip-free racing still allows betting

While the ethics of promoting gambling is a different debate entirely, whip-free races in Norway and the UK still allow people to bet. It may even be more attractive to sponsors seeking assurance their brand is only associated with ethical activities.

10. Whipping tired animals in the name of sport is hard to justify

Horses have evolved to run away from painful pressure on their hindquarters, given the most likely natural cause of such stimulation is contact from a predator. Repeatedly whipping tired horses in the closing stages of a race is likely to be distressing and cause suffering. The horse's loss of agency as it undergoes repeated treatment of this sort is thought to lead to the state of "learned helplessness," in which animals learn they can do nothing to end their distress.

Racing must reckon with two key questions: does whipping actually work as intended, and is it an ethical way to treat a horse in the name of sport?

If the answer to both of those is "no," a third question arises: why are jockeys still doing it?


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Provided by The Conversation

This article is republished from The Conversation under a Creative Commons license. Read the original article.
Fashion industry's hidden environmental timebomb revealed

by Northumbria University
Credit: CC0 Public Domain

The devastating environmental impact of plastic clothing hangers has been revealed for the first time—with calls for the fashion industry to urgently address the issue.


Research by ethical fashion expert Dr. Alana James, of Northumbria University, has found that more than 954 million plastic garment hangers are used every year in the UK fashion industry.

Of these, 16% are used solely for transporting clothing from manufacturers to shops and are then discarded, drawing parallels with single-use items such as plastic bottles, carrier bags and drinking straws.

However, while the environmental impact of these products has been recognized and addressed through cost implications, sustainable alternatives and government policy
, little has been known about the impact of plastic hangers until now.


Working with Fashion Consultant Emma Reed, Dr. James anonymously surveyed a wide variety of UK fashion businesses, from luxury bands to high street retailers, including e-commerce operations.

Commenting on the findings of their report Hanger usage in the UK, Dr. James said: "For nearly a century now fashion has had an unhealthy reliance on the use of plastic, with 65% of all garments currently produced being made from synthetic fibers. However, hangers remain a largely overlooked area of environmental impact in the industry, despite 60% of all clothing sold being associated with a plastic hanger."

The research, which was carried out in partnership with sustainable hanger brand Arch & Hook, also revealed that 60% of all clothes sold in the UK came with an associated plastic hanger, and that more than 82 million hangers are sent out with online clothing orders in the UK each year.

Dr. James, a Senior Lecturer in Fashion at Northumbria University, said: "More than two thirds of the fashion companies we interviewed were unaware what type of plastic or plastics their hangers were made from, making it difficult or impossible to recycle them. While there has been a definite shift in awareness of the environmental impact of the fashion industry in recent years, the issue of plastic hangers seems to be one which has been largely ignored until now. Manufacturers, retailers and consumers all have a role to play in instigating change and we hope the results of this research will raise awareness of this problem and lead to alternative solutions."

Sjoerd Fauser is founder and CEO of Arch & Hook, which combines recycled and recyclable materials to create durable hangers, as well as coordinating hanger recollection operations.

He explains: "Our eye-opening report is just the tip of the iceberg. Data for worldwide hanger usage remains unavailable. We are determined to expand the research into other areas, in collaboration with more partners, to unveil the truth, create awareness and turn sustainability into a tangible action."

The 32-page report, "Hanger usage in the UK," researched the number of plastic hangers used throughout 2019 in the UK clothing market.


Explore furtherQ&A: Sustainability manager on the benefits of a plastic bag ban
More information: Hanger usage in the UK. northumbria-cdn.azureedge.net/ … hanger-usage-uk_arch—hook.pdf?modified=20201112075850
Provided by Northumbria University
Smart concrete could pave the way for high-tech, cost-effective roads

by Luna Lu and Vishal Saravade, The Conversation
The Golden Gate Bridge in San Francisco averages more than 100,000 vehicles daily. 
Credit: Saketh Garuda for Unsplash

Every day, Americans travel on roads, bridges and highways without considering the safety or reliability of these structures. Yet much of the transportation infrastructure in the U.S. is outdated, deteriorating and badly in need of repair.

Of the 614,387 bridges in the U.S., for example, 39% are older than their designed lifetimes, while nearly 10% are structurally deficient, meaning they could begin to break down faster or, worse, be vulnerable to catastrophic failure.

The cost to repair and improve nationwide transportation infrastructure ranges from nearly US$190 billion to almost $1 trillion. Repairing U.S. infrastructure costs individual households, on average, about $3,400 every year. Traffic congestion alone is estimated to cost the average driver $1,400 in fuel and time spent commuting, a nationwide tally of more than $160 billion per year.

I am a professor in the Lyles School of Civil Engineering and the director of the Center for Intelligent Infrastructures at Purdue University. My co-author, Vishal Saravade, is part of my team at the Sustainable Materials and Renewable Technology (SMART) Lab. The SMART Lab researches and develops new technologies to make American infrastructure "intelligent," safer and more cost-effective. These new systems self-monitor the condition of roads and bridges quickly and accurately and can, sometimes, even repair themselves.
The Purdue engineering lab has installed smart technology in three Indiana interstate highways.


Smart, self-healing concrete


Infrastructure—bridges, highways, pavement—deteriorates over time with continuous use. The life of structures could be extended, however, if damages were monitored in real time and fixed early on. In the northern U.S., for example, freeze-thaw cycles in winter cause water to seep into the pavement where it freezes, expands and enlarges cracks, which can cause significant damage. If left unrepaired, this damage may propagate and break down pavements and bridges.

Such damage can be identified and repaired autonomously. At an early stage of a crack, for example, self-healing pavement would activate super absorbent polymers to absorb water and produce concrete-like material that fills in the crack. Cracks as small as a few microns could be healed to prevent significant damage by preventing or delaying the later stages of the freeze-thaw cycle.



The astonishing properties of absorbent polymers.

Roadway technology

Many researchers in the world are working on improving construction infrastructure. Technologies recently being explored include solar and energy-harvesting roads, charging lanes for electric vehicles, smart streetlights and reducing carbon-related emissions from construction materials.

At the Purdue SMART Lab, our team is also testing novel sensors that monitor transportation infrastructure by embedding them in several Indiana interstate highways. We plan to expand to other state highway systems in the next few years with a goal to better accommodate increased traffic and provide accurate estimates of road conditions during construction and its life.

Sensors embedded in concrete pavement acquire information about the infrastructure's health condition in real time and communicate the data to computers. Electrical signals are applied through the sensors. Concrete's vibrations are converted into electrical signals that are read and analyzed by lab-built customized software. This enables transportation engineers to make effective and data-driven decisions from opening roads to traffic and to proactively identifying issues that cause damage or deterioration.


Sensors embedded in concrete can signal the health of roadways.
 Credit: Erin Easterling/Purdue University.

After concrete is poured for highway pavement, for example, it takes hours to cure and become strong enough to open for traffic. The timing of when to open a highway depends on when the concrete mix is cured. If a roadway opens too early and the concrete is undercured, it can reduce the life expectancy of the pavement and increase maintenance costs. Waiting too long to open a road can result in traffic delays, congestion and increased safety risks for construction workers and commuters. Curing concrete for massive highway projects requires close attention by engineers in conjunction with the weather specific to that region.

Smart sensors embedded in concrete enable engineers to monitor the infrastructure and make data-driven decisions about when a road can open while retaining maximum life expectancy. Sensors can also help monitor the quality of concrete and whether it is robust enough to withstand traffic flow and corrosion after a roadway is opened. Smart, efficient infrastructure can significantly reduce structural failures, both catastrophic and through normal wear, as well as lead to reduced costs and provide new ways for structural engineers to assess real-time information about the pavement.

Sensors installed on Indiana interstate I-74. Credit: Erin Easterling/Purdue University, CC BY-ND
Self-healing concrete test study with cracked concrete (left) and self-healed concrete after 28 days (right). Credit: SMART Lab/Purdue University, CC BY-ND
Saving time and money

Congress recognizes the need to invest in American transportation systems. A $494 billion legislation package, the INVEST In America Act, was recently introduced to address America's deteriorating highways and bridges while diminishing carbon pollution.

Smart sensors and intelligent infrastructure system can enable significant savings of time and money with improved construction safety. Sensors can provide engineers with real-time data of the quality of our infrastructure to make the best decisions for building and maintaining roads, bridges and pavements while improving safety for drivers and construction workers. The addition of self-repairing properties can help build sustainable and long-lasting infrastructure to reduce maintenance and costs.


Explore further Enabling highways and bridges to prevent their own damage
Provided by The Conversation

This article is republished from The Conversation under a Creative Commons license. Read the original article.

The Matrix is already here: Social media promised to connect us, but left us isolated, scared and tribal

by Arash Javanbakht, The Conversation
Credit: Unsplash/CC0 Public Domain

About a year ago I began to follow my interest in health and fitness on Instagram. Soon I began to see more and more fitness-related accounts, groups, posts and ads. I kept clicking and following, and eventually my Instagram became all about fit people, fitness and motivational material, and advertisements. Does this sound familiar?

While the algorithms and my brain kept me scrolling on the endless feeds, I was reminded of what digital marketers like to say: "Money is in the list." That is, the more customized your group, people and page follows, the less time and money is needed to sell you related ideas. Instead, brand ambassadors will do the work, spreading products, ideas and ideologies with passion and free of charge.

I'm a psychiatrist who studies anxiety and stress, and I often write about how our politics and culture are mired in fear and tribalism. My co-author is a digital marketing expert who brings expertise to the technological-psychological aspect of this discussion. With the nation on edge, we believe it's critical to look at how easily our society is being manipulated into tribalism in the age of social media. Even after the exhausting election cycle is over, the division persists, if not widening, and conspiracy theories continue to emerge, grow and divide on the social media. Based on our knowledge of stress, fear and social media, we offer you some ways to weather the next few days, and protect yourself against the current divisive environment.

The promise, the Matrix

Those of us old enough to know what life was like before social media may remember how exciting Facebook was at its inception. Imagine, the ability to connect with old friends we had not seen for decades! Then, Facebook was a virtual dynamic conversation. This brilliant idea, to connect to others with shared experiences and interests, was strengthened with the advent of Twitter, Instagram and apps.

Things did not remain that simple. These platforms have morphed into Frankenstein's monsters, filled with so-called friends we've never met, slanted news stories, celebrity gossip, self-aggrandizement and ads.

The artificial intelligence behind these platforms determines what you see based on your social media and web activity, including your engagement with pages and ads. For example, on Twitter you may follow the politicians you like. Twitter algorithms quickly respond and show you more posts and people related to that political leaning. The more you like, follow and share, the faster you find yourself moving in that political direction. There is, however, this nuance: Those algorithms tracking you are often triggered by your negative emotions, typically impulsivity or anger.

As a result, the algorithms amplify the negative and then spread it by sharing it among groups. This might play a role in the widespread anger among those engaged in politics, regardless of their side of the aisle.

The digital tribe

Eventually, the algorithms expose us mostly to the ideology of one "digital tribe"—the same way my Instagram world became only superfit and active people. This is how one's Matrix can become the extremes of conservatism, liberalism, different religions, climate change worriers or deniers or other ideologies. Members of each tribe keep consuming and feeding one another the same ideology while policing one another against opening up to "the others."

We are inherently tribal creatures anyway; but particularly when we're scared, we regress further into tribalism and tend to trust the information relayed to us by our tribe and not by others. Normally, that's an evolutionary advantage. Trust leads to group cohesion, and it helps us survive.

But now, that same tribalism—along with peer pressure, negative emotions and short tempers—often lead to ostracizing those who disagree with you. In one study, 61% of Americans reported having unfriended, unfollowed or blocked someone on social media because of their political views or posts.

Higher levels of social media use and exposure to sensationalized news about the pandemic is linked with increased depression and stress. And more time spent on social media correlates with higher anxiety, which can create a negative loop. One example: The Pew Research Center reports 90% of Republicans who get their political news only from conservative platforms said the U.S. has controlled the COVID-19 outbreak as much as possible. Yet less than half of Republicans who rely on at least one other major news provider thought so.

The Matrix does the thinking

Human thinking itself has been transformed. It's now more difficult for us to grasp the "big picture." A book is a long read these days, too much for some people. Scrolling and swiping culture has reduced our attention span (on average people spend 1.7 to 2.5 seconds on a Facebook news feed item). It has also deactivated our critical thinking skills. Even really big news doesn't last on our feed longer than a few hours; after all, the next blockbuster story is just ahead. The Matrix does the thinking; we consume the ideology and are bolstered by the likes from our tribemates.

Before all this, our social exposure was mostly to family, friends, relatives, neighbors, classmates, TV, movies, radio, newspapers, magazines and books. And that was enough. In that, there was diversity and a relatively healthy information diet with a wide variety of nutrients. We always knew people who were not like minded, but getting along with them was normal life, part of the deal. Now those different voices have become more distant—"the others" we love to hate on social media.

Is there a red pill?

We need to take back the control. Here are seven things we can do to unplug ourselves out of the Matrix:
Review and update your ad preferences on social media at least once per year.
Confuse the AI by flagging all ads and suggestions as "irrelevant."
Practice being more inclusive. Check other websites, read their news and do not "unfriend" people who think differently from you.
Turn off cable news and read instead. Or at least put a disciplined limit on hours of exposure.
Check out less biased sources of news such as NPR, BBC and The Conversation.
If you think everything your tribe leaders say is absolute truth, think again.
Go offline and go out (just wear your mask). Practice smartphone-free hours.
Finally, remember that your neighbor who supports the other football team or the other political party is not your enemy; you can still go for a bike ride together! I did today, and we didn't even have to talk politics.

It's time to take the red pill. Take these seven steps, and you won't give in to the Matrix.


Explore furtherIt's not if, but how, people use social media that impacts their well-being
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San Diego zoo global biobanking advances wildlife conservation and human medicine worldwide


In a study that has unprecedented implications to advance both medicine and biodiversity conservation, researchers have sequenced 131 new placental mammal genomes, bringing the worldwide total to more than 250

SAN DIEGO ZOO GLOBAL

Research News

In a study that has unprecedented implications to advance both medicine and biodiversity conservation, researchers have sequenced 131 new placental mammal genomes, bringing the worldwide total to more than 250.

The results of the mammal genome project, published in the Nov. 12 issue of the journal Nature, catalog and characterize whole branches of Earth's biodiversity, spanning approximately 110 million years of mammal evolution--the largest and most diverse mammalian comparative genomics project to date. Oliver Ryder, Ph.D., Kleberg endowed director of Conservation Genetics at the San Diego Zoo Institute for Conservation Research, is one of the project's co-authors. He says that while the genetic material biobanked in San Diego Zoo Global's Frozen Zoo® has benefited his organization's conservation efforts, "Little did we know how broadly it would impact humankind."

While museum specimens were found to be mostly inadequate--because the most powerful sequencing technologies require large amounts of DNA and intact cells--San Diego Zoo Global's biobank contains 10,000 living cell cultures representing nearly 1,200 taxa, including more than 310 species classified as vulnerable, endangered, critically endangered or extinct.

Ryder compares the genome project to the invention of the microscope. "Before the microscope, we couldn't see what was going on inside of a cell. Now, we're viewing life from an entirely new perspective. DNA carries instructions, and now we're able to read those."

The study identifies genetic innovations that seem to protect certain animals from diseases like cancer and diabetes. It also pinpoints genomic elements that have remained unchanged across millions of years of evolution, which predict where mutations are likely to be associated with risk of disease, and could reveal new avenues of therapeutic development.

Important new findings for conservation have emerged for species conservation, too. "Genome sequences for endangered species can help identify a species' extinction risks and steer conservation efforts," says Megan Owen, Ph.D., corporate director of wildlife conservation science at San Diego Zoo Global. "They also give wildlife officials tools to apprehend poachers and wildlife traffickers." For this study, researchers prioritized endangered species like the Russian saiga, the black rhinoceros, the Pacific pocket mouse and the Peninsular bighorn sheep, among other species.

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The study, authored by 71 collaborating scientists across the United States and the European Union, was funded by the National Human Genome Research Institute and National Institutes of Health. Published in the Nov. 12 issue of Nature, the study catalogs and characterizes whole branches of Earth's biodiversity, spanning approximately 110 million years of mammal evolution--the largest and most diverse mammalian comparative genomics project to date. Other San Diego Zoo Global researchers who co-authored the project include Cynthia Steiner, Ph.D., associate director of Conservation Genetics; Marlys Houck, curator of the Frozen Zoo®, Biodiversity Banking; and researcher Leona G. Chemnick, retired. It is anticipated that the data from this project will be utilized in a variety of ways for years to come. Data are available for download at ncbi.nlm.nih.gov/assembly/, with no restrictions on their use in research or publications.

As a leader in conservation, the work of San Diego Zoo Global includes on-site wildlife conservation efforts (representing both plants and animals) at the San Diego Zoo, San Diego Zoo Safari Park, and San Diego Zoo Institute for Conservation Research, as well as international field programs on six continents. The work of these entities is made accessible to over 1 billion people annually, reaching 150 countries via social media, our websites and the San Diego Zoo Kids network, in children's hospitals in 12 countries. The work of San Diego Zoo Global is made possible with support from our incredible donors committed to saving species from the brink of extinction.

 

Landslide along Alaskan fjord could trigger tsunami

Glacier melt is exposing a slope that could crash into the water, study shows

OHIO STATE UNIVERSITY

Research News

A glacier that had held an Alaskan slope in place for centuries is melting, releasing the soil beneath in what can be described as a slow-motion landslide, researchers say. But there's also the possibility of a real landslide that could cause a devastating tsunami.

In a study published last week, scientists noted that the slope on Barry Arm fjord on Prince William Sound in southeastern Alaska slid some 120 meters from 2010 to 2017. These are some of the first measurements to quantify how the slope is falling there.

"We are measuring this loss of land before the tsunami occurs," said Chunli Dai, lead author of the paper and a research scientist at The Ohio State University's Byrd Polar and Climate Research Center.

The study was published in Geophysical Research Letters.

Landslides on slopes near glaciers generally occur when glacial ice melts, a phenomenon occurring more rapidly around the world because of climate change. Landslides can prompt tsunamis by sending massive amounts of dirt and rocks into nearby bodies of water. Such a landslide happened in 2017 in western Greenland, prompting a tsunami that killed four people.

Scientists estimate that a landslide at Barry Arm fjord could be about eight times larger than that Greenland landslide.

If the entire slope collapsed at once, the researchers found, tsunami waves could reach communities throughout the sound, which are home to hundreds of people and visitors, including fishermen, tourists and members of an indigenous Alaskan group called the Chugach.

For this study, researchers used satellite data to measure and monitor the size of the glacier that had covered the Barry Arm slope, and to measure the amount of land that had already been displaced, which is found to be directly linked to Barry Arm glacier's melting. Then, they built models to identify the potential landslide risk.

The data showed that, from 1954 to 2006, Barry Glacier thinned by less than a meter per year. But after 2006, the melt rapidly increased, so that the glacier was thinning by about 40 meters per year. The glacier retreated rapidly from 2010 to 2017, the researchers found. The land's "toe" -- the bottom point of the falling slope -- had butted against the glacier in 2010. By 2017, that toe was exposed, and butted up against the water in Prince William Sound.

The researchers modeled potential tsunami scenarios, and found that, if the land along that slope collapsed at once, the resulting tsunami would send currents between 25 and 40 meters per second -- enough to cause significant damage to large cruise and cargo ships and fishing boats, as well as overwhelming kayakers, all of which frequent Prince William Sound.

Waves could reach 10 meters in the nearby town of Whittier. The tsunami could disrupt fiber optic service to parts of Alaska, the researchers noted -- two of the five submarine fiber optic lines to Alaska run below Prince William Sound. And oil from the 1989 Exxon Valdez oil spill still lingers in sediment in Prince William Sound, meaning it is possible that a tsunami could send that oil back into the environment.

"If the slope fails at once, it would be catastrophic," said Dr. Bretwood Higman, a geologist with Ground Truth Alaska and co-author of the study.

When and if that massive landslide occurs depends on geology, climate and luck. An earthquake, prolonged rains, thawing permafrost or snowmelt could trigger one, the researchers said. (A 2018 earthquake in Alaska did not trigger a landslide, the researchers noted.)

"People are working on early-detection warnings, so if a landslide happens, people in nearby communities might at least get a warning," said Anna Liljedahl, an Alaska-based hydrologist with Woodwell Climate Research Center, and another co-author. "This kind of research might help with building those early-warning systems."

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This research was supported by NASA and the National Science Foundation.

CONTACT: Chunli Dai, dai.56@osu.edu

Written by: Laura Arenschield, arenschield.2@osu.edu

 

Vaping may increase respiratory disease risk by more than 40%: BU study

BOSTON UNIVERSITY SCHOOL OF MEDICINE

Research News

A growing body of evidence points to the health risks of using e-cigarettes (or "vaping"). But because e-cigarettes are marketed as a less harmful alternative to traditional cigarettes, it has been difficult to tell whether the association between vaping and disease is just a matter of smokers switching to vaping when they start experiencing health issues.

Now, a study by researchers from the Boston University School of Public Health (BUSPH) and School of Medicine (BUSM) is one of the first to look at vaping in a large, healthy sample of the population over time, independently from other tobacco product use.

Published in JAMA Network Open, the study found that participants who had used e-cigarettes in the past were 21% more likely to develop a respiratory disease, and those who were current e-cigarette users had a 43% increased risk.

"This provides some of the very first longitudinal evidence on the harms associated with e-cigarette products," says corresponding author Dr. Andrew Stokes, assistant professor of global health at BUSPH.

"In recent years we have seen dramatic increase in e-cigarette use among youth and young adults which threatens to reverse decades of hard-fought gains," Stokes says. "This new evidence also suggests that we may see an increase in respiratory disease as youth and young adults age into midlife, including asthma, COPD, and other respiratory conditions."

Most previous research on the respiratory health effects of vaping have used animal or cell models, or, in humans, only short-term clinical studies of acute conditions.

For this study, the researchers used data on 21,618 healthy adult participants from the first four waves (2013-2018) of the nationally-representative Population Assessment of Tobacco and Health (PATH), which is the most comprehensive national survey of tobacco and e-cigarette-related information to date.

To make sure they weren't simply seeing cigarette smokers switching to e-cigarettes specifically because of health issues (rather than vaping itself causing these issues), the researchers only included people with no reported respiratory issues when they entered PATH, and adjusted for a comprehensive set of health conditions. They also adjusted for having ever used other tobacco products (including cigarettes, cigars, hookah, snus, and dissolvable tobacco) and for marijuana use, as well as childhood and current secondhand smoking exposure. They repeated the analyses among subgroups of healthy respondents who had no self-reported chronic conditions, and whose self-rated overall health was good, great, or excellent.

Adjusting for all of these variables and for demographic factors, the researchers found that former e-cigarette use was associated with a 21% increase in the risk of respiratory disease, while current e-cigarette use was associated with a 43% increase. Current e-cigarette use was associated with a 33% increase in chronic bronchitis risk, 69% increase in emphysema risk, 57% increase in chronic obstructive pulmonary disease (COPD) risk, and 31% percent increase in asthma risk.

"With a longitudinal study design and extensive sensitivity analyses, the study adds to a growing body of evidence indicating long-term health risks of e-cigarette use to the respiratory system," says study lead author Wubin Xie, a postdoctoral associate in the Department of Global Health at BUSPH.

Evidence of the health effects of vaping, from this and other studies, also "highlight the importance of standardizing documentation of e-cigarette product use in electronic health records, and pushing the CDC to develop International Classification of Diseases codes for e-cigarette product use, so that providers can facilitate cessation discussions and identify adverse events related to e-cigarette use," says study co-author Dr. Hasmeena Kathuria, associate professor of pulmonary medicine and a member of the Pulmonary Center at BUSM.

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About the Boston University School of Public Health

Founded in 1976, the Boston University School of Public Health is one of the top five ranked private schools of public health in the world. It offers master's- and doctoral-level education in public health. The faculty in six departments conduct policy-changing public health research around the world, with the mission of improving the health of populations--especially the disadvantaged, underserved, and vulnerable--locally and globally.

 

Age gates on alcohol websites are ineffective, Texas A&M research shows

Yes/no questions and indefinite attempts to enter a legal date of birth are "inconsequential barriers" to underage users, an alcohol researcher says

SAME GOES FOR OTHER ADULT SITES USING AGE GATES

TEXAS A&M UNIVERSITY

Research News

IMAGE

IMAGE: AGE GATES ON ALCOHOL WEBSITES OFTEN ASK USERS TO CLICK A YES/NO BOX OR ENTER A DATE OF BIRTH THAT IS OF LEGAL DRINKING AGE BEFORE ALLOWING ACCESS. view more 

CREDIT: COLLEGE OF EDUCATION & HUMAN DEVELOPMENT AT TEXAS A&M UNIVERSITY

"Age gates" that aim to keep underage users off alcohol websites are mostly ineffective, a Texas A&M University alcohol researcher found.

"Alcohol brand age gates are weak, at best, and likely an inconsequential barrier that someone with limited math abilities can easily overcome," said Adam Barry, a professor in the Department of Health and Kinesiology.

Age gates are virtual barriers intended to prevent people of ceratin age groups from accessing a website. Alcohol brand sites employ them to ensure the user attempting entry is of legal drinking age. Users are typically asked if they are 21 years of age or older, or asked to enter their birth date.

Barry's research, which was recently published in Alcohol or Alcoholism, assessed the effectiveness of the digital age gates of the top alcohol brands among American adolescents. The study found that for the vast majority of the sites, users could gain access after continuously entering dates of birth until eventually providing one indicating they were older than 21. Many sites also had no process for verifing the accuracy of the provided date of birth.

Barry is a health behavior social scientist with training and expertise in alcohol use, alcohol-induced impairment and intoxication. He said exposure to alcohol advertising can alter an adolescent's views, perceptions and expectations on alcohol consumption.

"Exposure to alcohol advertising has been linked to underage alcohol-related behaviors and intentions to consume alcohol," Barry said.

Barry's research examined alcohol webpages, but he also found that alcohol advertising on social media platforms is problematic. He said it's important to ensure that young people are not marketed to, don't interact with inappropriate content and don't fall prey to predators. However, this is often not the case.

"Unfortunately, the current strategies employed, such as asking for a birthdate, feel more like industry is concerned about their liability, as opposed to the welfare of users," Barry said.

He hopes to raise awareness of the lack of regulation in alcohol marketing. Brands themselves control the "safety measures" in place, rather than a larger entity.

"Currently, there is no formal legislation in the United States prohibiting alcohol advertisements that appeal to adolescents, the placement of alcohol advertising or how the age affirmation process and outcomes should be implemented," Barry said.

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