Thursday, 10 August 2017

How Ingrid Betancourt escaped from her difficult situation. Let's hear her story.


In 2002, Ingrid Betancourt was campaigning to become president of Colombia when she was kidnapped by guerillas. She was held in the jungle for six years. With fear her constant companion, she learned how to use it and grow.

The first time I felt fear I was 41 years old. People have always said I was brave. When I was little, I'd climb the highest tree, and I'd approach any animal fearlessly. I liked challenges. My father used to say, "Good steel can withstand any temperature."

And when I entered into politics in Colombia, I thought I'd be able to withstand anything. I wanted to end corruption; I wanted to cut ties between politicians and drug traffickers. The first time I was elected, it was because I called out corrupt and untouchable politicians by name. I also called out the president for his ties to the cartels.

That's when the threats started. As a result, one morning I had to send my very young children, hidden in the French ambassador's armored car, to the airport to stay out of the country. Days later, I was the victim of an attack but I emerged unharmed. And the following year, the Colombian people elected me with the highest number of votes. I thought people applauded me because I was brave. I, too, thought I was brave.

But I wasn't. I had simply never experienced true fear.


I went to sleep in fear every night -- cold sweats, shakes, stomach aches -- but worse than that was what was happening to my mind.

That changed on February 23, 2002. At the time, I was promoting my campaign agenda as a presidential candidate when I was detained by a group of armed men. They were wearing uniforms with military garments. I looked at their boots -- they were rubber, and I knew that the Colombian army wore leather boots -- so I knew these were FARC (Revolutionary Armed Forces of Colombia) guerrillas.

From that point on, everything happened very quickly. The commando leader ordered us to stop the vehicle. Meanwhile, one of his men stepped on an anti-personnel mine and flew through the air. He landed, sitting upright, in front of me. We made eye contact, and it was then that the young man understood: his rubber boot with his leg still in it had landed far away. He started screaming like crazy.

The truth is, I felt -- as I feel right now, because I'm reliving these emotions -- I felt at that moment that something inside of me was breaking and that I was being infected with his fear. My mind went blank and couldn't think; it was paralyzed. When I finally reacted, I said to myself, "They're going to kill me, and I didn't say goodbye to my children." As they took me into the deepest depths of the jungle, the FARC soldiers announced that if the government didn't negotiate, they'd kill me. And I knew that the government wouldn't negotiate.


I was suffering enormous behavioral changes, and it wasn't just paranoia. It was also the urge to kill.

I went to sleep in fear every night -- cold sweats, shakes, stomach aches, insomnia. But worse than that was what was happening to my mind, because my memory was being erased: all the phone numbers, addresses, names of very dear people, even significant life events. So, I began to doubt myself, to doubt my mental health. And with doubt came desperation, and with desperation came depression. I was suffering enormous behavioral changes, and it wasn't just paranoia in moments of panic. It was distrust, it was hatred, and it was also the urge to kill.

This I realized when my captors had me chained by the neck to a tree. They kept me outside that day, during a tropical downpour. I remember feeling an urgent need to use the bathroom.

"Whatever you have to do, you'll do in front of me, bitch!" the guard screamed at me.

And I decided at that moment to kill him. For days, I was planning, trying to find the right moment, the right way to do it, filled with hatred and fear. Suddenly, I rose up, snapped out of it, and thought, "I'm not going to become one of them. I'm not going to become an assassin. I still have enough freedom to decide who I want to be."


Beyond my fear I felt the need to defend my identity, to not let them turn me into a thing or a number.

That's when I learned that fear had brought me face to face with myself. It forced me to align my energies, and I learned that facing fear could become a pathway to growth. When I think back, I'm able to identify the three steps I took to do it.

The first was to be guided by principles. I realized that in the midst of panic and my mental block, if I followed my principles, I acted correctly. I remember the first night in the concentration camp that the guerrillas had built in the middle of the jungle. It had 12-foot-high bars, barbed wire, lookouts in the four corners, and armed men pointing guns at us 24 hours a day. The first morning, some men arrived and yelled: "Count off! Count off!"

My fellow hostages woke up, startled, and began to identify themselves in numbered sequence. But when it was my turn, I said, "Ingrid Betancourt. If you want to know if I'm here, call me by my name."

The guards' fury was nothing compared to that of the other hostages because they were scared -- we were all scared --and they were afraid that, because of me, they would be punished. Beyond my fear I felt the need to defend my identity, to not let them turn me into a thing or a number. That was one of my principles: to defend what I considered to be human dignity.


The jungle is like a different planet -- a world of shadows, bugs, jaguars, anacondas. But none of these animals did us as much harm as the humans.

But make no mistake. The guerrillas had been kidnapping for years, and they had developed a technique to break us, to defeat us and to divide us. So the second step was to learn how to build trust and unite.

The jungle is like a different planet. It's a world of shadows, of rain, with the hum of millions of bugs, like majiña ants and bullet ants. While I was in the jungle, I didn't stop scratching for a single day. Of course, there were also jaguars, tarantulas, scorpions, anacondas -- I once came face to face with a 24-foot-long anaconda that could have swallowed me in one bite.

Still, I want to tell you that none of these animals did us as much harm as the humans. The guerrillas terrorized us. They spread rumors. Among the hostages, they sparked betrayals, jealousy, resentment and mistrust. The first time I escaped for a long time was with Lucho. Lucho had been a hostage for two years longer than me. We decided to tie ourselves up with ropes and lower ourselves into the dark water full of piranhas and alligators. During the day, we would hide in the mangroves, and at night, we would get in the water, swim, and let the current carry us. That went on for several days, until Lucho became sick. A diabetic, he fell into a diabetic coma, and the guerrillas captured us.

But after having lived through that with Lucho and after having faced fear together, united, nothing -- not punishment, not violence -- could ever again divide us. At the same time, all of the guerrillas' manipulation was so damaging to us that even today, tensions linger among some of the hostages I was held with. It was passed down from all of the poison that the guerrillas created.


"Ingrid, you know I don't believe in God," said Pincho. I told him, "God doesn't care. He'll still help you."

The third step was to learn how to develop faith -- it is very important to me. Jhon Frank Pinchao was a police officer who had been a hostage for more than eight years. He was famous for being the biggest scaredy-cat of us all. But Pincho -- I called him "Pincho" -- had decided he wanted to escape, and he asked me to help him. By that point, I basically had a master's degree in escape attempts.

We were delayed because, first, Pincho had to learn how to swim, and we had to carry out our preparations in total secrecy. When we finally had everything ready, Pincho came up to me and said, "Ingrid, suppose I'm in the jungle, and I go around and around in circles, and I can't find the way out. What do I do?"

"Pincho, you grab a phone, and you call the man upstairs," I said.

"Ingrid, you know I don't believe in God," he said.

I told him, "God doesn't care. He'll still help you."

That evening, it rained all night. The following morning, the camp woke up to a big commotion because Pincho had fled. The guerrillas made us dismantle the camp, and we started marching. During the march, the head guerrilla told us that Pincho had died, and they’d found his remains eaten by an anaconda. Seventeen days passed -- and believe me, I counted them, because they were torture for me -- and on the seventeenth day, the news exploded from the radio: Pincho was free and obviously alive.

And this was the first thing he said: "I know my fellow hostages are listening. Ingrid, I did what you told me. I called the man upstairs, and he sent me the patrol that rescued me from the jungle."

That was an extraordinary moment. Obviously, fear is contagious. But faith is, too. Faith isn't rational or emotional. Faith is an exercise of the will. It is the discipline of the will. It's what allows us to transform everything that we are -- our weaknesses and our frailties -- into strength and power. It's truly a transformation. It's what gives us the strength to stand up in the face of fear, look above it, and see beyond it. I know we all need to connect with that strength we have inside of us during the times when there's a storm raging around our boat.


Yes, fear is part of the human condition, but it's also the guide by which each of us builds our identity and our personality.

Many, many, many, many years passed before I could return to my house. But when they took us, handcuffed, into the helicopter that finally brought us out of the jungle, everything happened as quickly as when they had kidnapped me. In an instant, I saw the guerrilla commander at my feet, gagged, and the rescue leader, yelling, "We're the Colombian army! You are free!" And the shriek that came out of all of us when we regained our freedom continues to vibrate in me to this day.

Now I know they can divide all of us; they can manipulate us all with fear. The "No" vote on the peace referendum in Colombia; Brexit; the idea of a wall between Mexico and the United States; Islamic terrorism -- they're all examples of using fear politically to divide and recruit us. We all feel fear. But we can all avoid being recruited by using the resources we have -- our principles, unity, faith. Yes, fear is part of the human condition as well as being necessary for survival. But above all, fear is the guide by which each of us builds our identity and our personality.

I was 41 years old the first time I felt fear, and feeling it was not my decision. But it was my decision what to do with it. You can survive by crawling along, filled with fear. But you can also rise above that fear, spread your wings, and soar. You can fly high -- so high until you reach the stars, where all of us want to go.

She was captured but later released, now she's planning to become the next President of Colombia.

Always Know without a smoke there is no fire.
more of Ingrid Betancourt images at Ingrid images

Please subscribe to our blog before you leave. Thank you. 

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How Ingrid Betancourt escaped from her difficult situation. Let's hear her story.


In 2002, Ingrid Betancourt was campaigning to become president of Colombia when she was kidnapped by guerillas. She was held in the jungle for six years. With fear her constant companion, she learned how to use it and grow.

The first time I felt fear I was 41 years old. People have always said I was brave. When I was little, I'd climb the highest tree, and I'd approach any animal fearlessly. I liked challenges. My father used to say, "Good steel can withstand any temperature."

And when I entered into politics in Colombia, I thought I'd be able to withstand anything. I wanted to end corruption; I wanted to cut ties between politicians and drug traffickers. The first time I was elected, it was because I called out corrupt and untouchable politicians by name. I also called out the president for his ties to the cartels.

That's when the threats started. As a result, one morning I had to send my very young children, hidden in the French ambassador's armored car, to the airport to stay out of the country. Days later, I was the victim of an attack but I emerged unharmed. And the following year, the Colombian people elected me with the highest number of votes. I thought people applauded me because I was brave. I, too, thought I was brave.

But I wasn't. I had simply never experienced true fear.


I went to sleep in fear every night -- cold sweats, shakes, stomach aches -- but worse than that was what was happening to my mind.

That changed on February 23, 2002. At the time, I was promoting my campaign agenda as a presidential candidate when I was detained by a group of armed men. They were wearing uniforms with military garments. I looked at their boots -- they were rubber, and I knew that the Colombian army wore leather boots -- so I knew these were FARC (Revolutionary Armed Forces of Colombia) guerrillas.

From that point on, everything happened very quickly. The commando leader ordered us to stop the vehicle. Meanwhile, one of his men stepped on an anti-personnel mine and flew through the air. He landed, sitting upright, in front of me. We made eye contact, and it was then that the young man understood: his rubber boot with his leg still in it had landed far away. He started screaming like crazy.

The truth is, I felt -- as I feel right now, because I'm reliving these emotions -- I felt at that moment that something inside of me was breaking and that I was being infected with his fear. My mind went blank and couldn't think; it was paralyzed. When I finally reacted, I said to myself, "They're going to kill me, and I didn't say goodbye to my children." As they took me into the deepest depths of the jungle, the FARC soldiers announced that if the government didn't negotiate, they'd kill me. And I knew that the government wouldn't negotiate.


I was suffering enormous behavioral changes, and it wasn't just paranoia. It was also the urge to kill.

I went to sleep in fear every night -- cold sweats, shakes, stomach aches, insomnia. But worse than that was what was happening to my mind, because my memory was being erased: all the phone numbers, addresses, names of very dear people, even significant life events. So, I began to doubt myself, to doubt my mental health. And with doubt came desperation, and with desperation came depression. I was suffering enormous behavioral changes, and it wasn't just paranoia in moments of panic. It was distrust, it was hatred, and it was also the urge to kill.

This I realized when my captors had me chained by the neck to a tree. They kept me outside that day, during a tropical downpour. I remember feeling an urgent need to use the bathroom.

"Whatever you have to do, you'll do in front of me, bitch!" the guard screamed at me.

And I decided at that moment to kill him. For days, I was planning, trying to find the right moment, the right way to do it, filled with hatred and fear. Suddenly, I rose up, snapped out of it, and thought, "I'm not going to become one of them. I'm not going to become an assassin. I still have enough freedom to decide who I want to be."


Beyond my fear I felt the need to defend my identity, to not let them turn me into a thing or a number.

That's when I learned that fear had brought me face to face with myself. It forced me to align my energies, and I learned that facing fear could become a pathway to growth. When I think back, I'm able to identify the three steps I took to do it.

The first was to be guided by principles. I realized that in the midst of panic and my mental block, if I followed my principles, I acted correctly. I remember the first night in the concentration camp that the guerrillas had built in the middle of the jungle. It had 12-foot-high bars, barbed wire, lookouts in the four corners, and armed men pointing guns at us 24 hours a day. The first morning, some men arrived and yelled: "Count off! Count off!"

My fellow hostages woke up, startled, and began to identify themselves in numbered sequence. But when it was my turn, I said, "Ingrid Betancourt. If you want to know if I'm here, call me by my name."

The guards' fury was nothing compared to that of the other hostages because they were scared -- we were all scared --and they were afraid that, because of me, they would be punished. Beyond my fear I felt the need to defend my identity, to not let them turn me into a thing or a number. That was one of my principles: to defend what I considered to be human dignity.


The jungle is like a different planet -- a world of shadows, bugs, jaguars, anacondas. But none of these animals did us as much harm as the humans.

But make no mistake. The guerrillas had been kidnapping for years, and they had developed a technique to break us, to defeat us and to divide us. So the second step was to learn how to build trust and unite.

The jungle is like a different planet. It's a world of shadows, of rain, with the hum of millions of bugs, like majiña ants and bullet ants. While I was in the jungle, I didn't stop scratching for a single day. Of course, there were also jaguars, tarantulas, scorpions, anacondas -- I once came face to face with a 24-foot-long anaconda that could have swallowed me in one bite.

Still, I want to tell you that none of these animals did us as much harm as the humans. The guerrillas terrorized us. They spread rumors. Among the hostages, they sparked betrayals, jealousy, resentment and mistrust. The first time I escaped for a long time was with Lucho. Lucho had been a hostage for two years longer than me. We decided to tie ourselves up with ropes and lower ourselves into the dark water full of piranhas and alligators. During the day, we would hide in the mangroves, and at night, we would get in the water, swim, and let the current carry us. That went on for several days, until Lucho became sick. A diabetic, he fell into a diabetic coma, and the guerrillas captured us.

But after having lived through that with Lucho and after having faced fear together, united, nothing -- not punishment, not violence -- could ever again divide us. At the same time, all of the guerrillas' manipulation was so damaging to us that even today, tensions linger among some of the hostages I was held with. It was passed down from all of the poison that the guerrillas created.


"Ingrid, you know I don't believe in God," said Pincho. I told him, "God doesn't care. He'll still help you."

The third step was to learn how to develop faith -- it is very important to me. Jhon Frank Pinchao was a police officer who had been a hostage for more than eight years. He was famous for being the biggest scaredy-cat of us all. But Pincho -- I called him "Pincho" -- had decided he wanted to escape, and he asked me to help him. By that point, I basically had a master's degree in escape attempts.

We were delayed because, first, Pincho had to learn how to swim, and we had to carry out our preparations in total secrecy. When we finally had everything ready, Pincho came up to me and said, "Ingrid, suppose I'm in the jungle, and I go around and around in circles, and I can't find the way out. What do I do?"

"Pincho, you grab a phone, and you call the man upstairs," I said.

"Ingrid, you know I don't believe in God," he said.

I told him, "God doesn't care. He'll still help you."

That evening, it rained all night. The following morning, the camp woke up to a big commotion because Pincho had fled. The guerrillas made us dismantle the camp, and we started marching. During the march, the head guerrilla told us that Pincho had died, and they’d found his remains eaten by an anaconda. Seventeen days passed -- and believe me, I counted them, because they were torture for me -- and on the seventeenth day, the news exploded from the radio: Pincho was free and obviously alive.

And this was the first thing he said: "I know my fellow hostages are listening. Ingrid, I did what you told me. I called the man upstairs, and he sent me the patrol that rescued me from the jungle."

That was an extraordinary moment. Obviously, fear is contagious. But faith is, too. Faith isn't rational or emotional. Faith is an exercise of the will. It is the discipline of the will. It's what allows us to transform everything that we are -- our weaknesses and our frailties -- into strength and power. It's truly a transformation. It's what gives us the strength to stand up in the face of fear, look above it, and see beyond it. I know we all need to connect with that strength we have inside of us during the times when there's a storm raging around our boat.


Yes, fear is part of the human condition, but it's also the guide by which each of us builds our identity and our personality.

Many, many, many, many years passed before I could return to my house. But when they took us, handcuffed, into the helicopter that finally brought us out of the jungle, everything happened as quickly as when they had kidnapped me. In an instant, I saw the guerrilla commander at my feet, gagged, and the rescue leader, yelling, "We're the Colombian army! You are free!" And the shriek that came out of all of us when we regained our freedom continues to vibrate in me to this day.

Now I know they can divide all of us; they can manipulate us all with fear. The "No" vote on the peace referendum in Colombia; Brexit; the idea of a wall between Mexico and the United States; Islamic terrorism -- they're all examples of using fear politically to divide and recruit us. We all feel fear. But we can all avoid being recruited by using the resources we have -- our principles, unity, faith. Yes, fear is part of the human condition as well as being necessary for survival. But above all, fear is the guide by which each of us builds our identity and our personality.

I was 41 years old the first time I felt fear, and feeling it was not my decision. But it was my decision what to do with it. You can survive by crawling along, filled with fear. But you can also rise above that fear, spread your wings, and soar. You can fly high -- so high until you reach the stars, where all of us want to go.

She was captured but later released, now she's planning to become the next President of Colombia.

Always Know without a smoke there is no fire.
more of Ingrid Betancourt images at Ingrid images

Please subscribe to our blog before you leave. Thank you. 

Share:

The octopus might be an alien from another world.


By examining the eight-armed marine creature and the peculiar way it engages with the world, we can get a glimpse into different ways of existing and being, says cognitive neuroscientist Anil Seth.

You don’t need to go to outer space to encounter an alien. To find otherworldliness here on Earth, meet an octopus. Like many other people who have spent time with these remarkable creatures, I’ve been left with a vivid sense of an intelligent presence very different from our own.

The octopus is our very own terrestrial alien, with eight prehensile arms lined with suckers; three hearts; an ink-based defense mechanism; highly developed jet propulsion; a body that can change size, shape, texture and color at will; and cognitive abilities to rival many mammals. They can retrieve hidden objects from nested Plexiglass cubes, find their way through complex mazes, utilize natural objects as tools, and even solve problems by watching other octopuses do the same. The common octopus, Octopus vulgaris, has about half a billion neurons, roughly six times more than a mouse. If there are sentient aliens in the universe, one way of trying to understand what sort of consciousness they may have is to think about the inner universe of the common octopus.
Don't freak out that might just be an
example. 

To do this, we need a working definition of consciousness, although there is none that is universally agreed upon. A simple approach is to say that, for a conscious organism, there is something it is like to be that organism. Or one can say that consciousness, at least for humans, is what disappears when we fall into a dreamless sleep and what returns when we wake up. For conscious organisms, there seems to exist a continuous, though uninterruptible, stream of conscious scenes or experiences.

Consciousness can’t be traced to a single region in the human brain. Our best guess is it depends on how different regions talk to each other.

Using humans as a benchmark, we can draw further distinctions. The first is between conscious level and conscious content. Conscious level refers to how “conscious” an organism is; it can be thought of as a graded scale from complete unconsciousness to vivid conscious wakefulness. It is not the same as wakefulness, however: one can be conscious while asleep or dreaming, and unconscious while sleepwalking or in a vegetative state.

Conscious contents refer to the elements of a conscious scene, or what you are conscious of, when you are conscious. For humans, conscious content includes colors, shapes, smells, thoughts, explicit beliefs, emotions and moods, experiences of desire and agency, and so on. Some aspects of self-consciousness, like experiences of body ownership and of having a first-person perspective on the world, are so continuous and pervasive that we take them for granted. But it’s just these aspects that might be most different in species like the octopus, since their bodies and how they interact with the world are so different from us.

Which leads us to the basic question: Is an octopus conscious? In humans, consciousness can’t be traced to a single region in the brain. Our current best guess is that it depends on how different brain regions talk to each other. When consciousness fades, like in dreamless sleep, the brain becomes functionally disconnected. Many experiments show that during normal consciousness, different brain regions can do their own thing, while at the same time participate in an integrated “whole.” This makes sense from the point of view of the human experiences: Every conscious scene is experienced as unified, but at the same time it’s composed of many different elements and is different from every other conscious experience.

Most of an octopus’s neurons lie outside its central brain, suggesting its consciousness might have a very different character to ours.

The half a billion neurons of the O. vulgaris nervous system would seem enough to provide a large repertoire of conscious contents. But the octopus nervous system is much poorer in the fast, long-range connections that connect the regions of the human brain. And the majority of an octopus’s neurons lie outside the central brain, which is unlike humans and most mammals. This suggests that the integration of the activity of different brain regions might be very different in octopuses. While this doesn’t mean that octopuses necessarily lack consciousness, it means their consciousness might have a very different character to ours.

check out the images and see the similarities.                        
                                                                                                             The Octopus Brain 
The Human Brain
At the neural level we know little about octopuses. If they are conscious, what might they be conscious of? Human conscious content ranges from those associated with sensations of the outside world to feelings, thoughts, experiences of volition and will, and many others. The classic human senses are vision, hearing, touch, taste and smell, which are accompanied by important sensory channels, including senses of body position and movement, pain, temperature and a raft of inputs on the internal state of the body.

In terms of sensory capabilities, all octopuses have good vision, even for the low light conditions prevalent at night or on the ocean floor. They also share the senses of taste, smell and touch; they can hear but not well. Octopus arms are rich in sensory receptors, used for touch and taste. Of the sensory channels, we know little but we do know they have pain receptors and show a range of pain-related behaviors similar to vertebrates, like grooming and protecting injured body parts.

But perception isn’t just about having this or that sense. When we perceive our environment with vision, we do more than build an accurate picture of an objective reality. Instead, we perceive the world in terms of how we might act in it and on it. A door, for instance, is perceived as something that can be opened by us, not just as a rectangular slab of wood. Since octopuses (and aliens, potentially) can take very different sets of possible actions than us, they’ll likely have very different perceptions.

A crucial feature of human consciousness is the variety and sophistication of our self-consciousness. Human self-consciousness -- the experience of being “me” -- plays out at many levels. These include a basic sense of being and having a body, experiences of looking out onto the world from a particular first-person perspective, and experiences of volition and will.


Even here on earth, being a conscious self may involve types of sensation that are completely alien to us humans.

Let’s focus on the experience of identifying with a particular body. Altered body experience can sometimes be induced. In the rubber hand illusion, a person’s real hand is hidden from view while they fix their gaze on a fake rubber hand. If both hands (real and rubber) are simultaneously stroked with a soft paintbrush, most people have the bizarre experience that the rubber hand somehow becomes part of their body. This shows that our experience of what is -- and what is not -- part of our body is not simply given but is a surprisingly flexible perception generated by our brain.

An octopus’s experience of its own body is likely to be affected by the fact that it has a strikingly decentralized nervous system -- the majority of its nerve cells are found, not in its central brain, but in its arms, which are almost like independent animals. Delegating “neural” control to each arm makes sense because octopus arms can move in many different ways. Studies have shown that they are capable of behaving semi-independently and can execute complex grasping movements even after being severed. This suggests that the octopus may have only a hazy experience of its body configuration. In fact, there might even be something it is like to be an octopus arm.

For an octopus, the suckers on each arm automatically grip onto almost any passing object, but somehow they do not fix onto its other arms or central body. One way to achieve this feat of self-discrimination would be for the central brain to maintain an up-to-date picture of the position of each limb. Human brains can do this. But for an octopus, the job seems formidable. Instead, it has recently been discovered that they secrete a chemical in their skin which prevents the suckers from attaching and which constitutes a highly distinctive, chemical-based self-recognition system. Even here on earth, being a conscious self may involve types of sensation that are completely alien to us humans.

The novelty of octopus embodiment doesn’t stop with its semi-autonomous arms and chemical self-recognition. Octopus bodies can undergo dramatic changes in size, shape, color, patterning and texture. They have remarkable camouflage abilities, blending seamlessly into the environment while waiting for prey to swim by or predators to move along. Putting all this together means the experience of body ownership for an octopus might well be the most other-worldly aspect of its consciousness.


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Wednesday, 9 August 2017

How can we detect Cancer earlier.


A new DNA technology that analyzes human blood samples has been shown to catch the disease four months earlier than traditional methods. Cancer researcher Jimmy Lin explains how it works.

Cancer is the ultimate killer: it can strike suddenly, move swiftly through the human body, and change form over time to evade attackers. Plus, in many cases, it can’t be spotted easily -- it often takes many different diagnostics before it can be identified. But what if this deadliest of assassins could be detected by a simple blood test?

Computational biologist and cancer researcher Jimmy Lin is one of the people working on what’s called a “liquid biopsy.” The diagnostic that he is helping develop can recognize the presence of disease by looking for the DNA from cancer cells (TED Talk: A simple new blood test detects cancer early). Lin, a TED Fellow, is the chief scientific officer (oncology) at a California-based company that has developed a new technology that has shown exciting results in detecting and tracking lung cancer.

Cancer cells are healthy cells that have mutated and become unhealthy and dysfunctional. Cancer is currently detected though one of three methods: medical procedures (for example, a colonoscopy or a biopsy); imaging (like a mammogram); or screening for protein bio markers (like checking PSA levels for prostate cancer). These techniques all have drawbacks, including the risk of false positives, dangerous exposure to radiation, limitations in working with all body types, pain and being highly invasive.

While the key to treating and curing cancer is early detection, says Lin, detection often doesn’t occur until a cancer is large enough to cause symptoms, or until it’s dense or prominent enough to see on a scan or mammogram.

Just like normal cells, all cancer cells contain DNA. Thanks to the genomic revolution, scientists can create precision medicines that attack only cancer cells, and not a patient’s healthy cells, by targeting certain genetic mutations. But the drugs aren’t infallible, in part because a single tumor can be made up of cells of different types that have different genetic makeups. To add difficulty: A tumor’s genetic makeup can keep changing over the course of a disease. “Some cancers evolve faster, some slower, and sometimes they evolve in response to treatment, exhibiting what we call ‘drug resistance,’” says Lin. “The ability to understand how cancers change is important, not just for diagnosis, but also for figuring out what drug therapies to use with the patient over time. This means the therapy that you’d give after the initial diagnosis may be different from what you’d give later.”

Old knowledge gets paired with new technology. For more than 40 years, physicians have known that cancer cells -- which grow and die much faster than normal cells -- release fragments of DNA in the human circulatory system when they die. Advances in genomics have made it possible to study these genetic scraps of circulating tumor DNA (ctDNA). “By collecting a patient’s blood and extracting and sequencing the DNA, we can generate data that can be analyzed for cancer’s presence and makeup,” says Lin.

While sequencing technology makes this process possible, it’s far from easy. Natera’s method involves first sequencing multiple regions in a patient’s tumor. Then, portions of the genomes of each section of tissue are sequenced to construct a phylogenetic tree, essentially a map identifying the patient’s overall cell mutations. “With this map, we know what to look for, and from there, we can create patient-specific assays to measure the evolution of different mutations in their blood,” says Lin. It’s an incredibly challenging endeavor -- since practically all of the DNA in a blood sample is from healthy cells, it can be like searching for a needle in a haystack. “We’re typically looking for fewer than one cancerous DNA fragment in 1,000,” Lin says.

Who to start studying? People at high risk for cancer recurrence. Examining the ctDNA of people from the general population would be hugely expensive; it made sense to narrow the test group down to patients who were statistically likely to get cancer. So researchers from University College London and the Francis Crick Institute (also in the UK) set their sights on a high-risk group: patients with non-small-cell lung cancer (NSCLC) who’ve had surgical treatment to remove their cancer. If any cancer cells are left in the body, the cancer could recur -- and it does recur in an estimated 30 percent to 55 percent of patients with NSCLC.

Imagine a four-month head start in beating the disease. In a blind, controlled two-year study, the scientists tracked 24 patients who had undergone surgery for NSCLC and who were deemed cancer-free. Scientists analyzed their patients’ blood with Natera’s sequencing technique every three to six months and subjected them to CT scans, the traditional diagnostic used for this type of cancer. With the new sequencing method, researchers detected cancer recurrence in patients an average of four months -- 122 days -- earlier than the traditional method. “Those are 122 extra days that doctors can have to treat cancers, which could make a huge difference to survival, as well as 122 days less for the cancer to grow,” says Lin. “For some patients, this could mean the difference between life and death.”

Besides aiding detection, this technology might also guide cancer treatment. During the study, the researchers also employed the sequencing technology in some of their subjects to see if chemotherapy was successful, allowing them to respond more nimbly to the growth and evolution of cancerous cells. “The potential to predict relapse at an early stage or to gain insights into which alterations are increasing in frequency suggest that ctDNA analysis can anticipate cancer’s next move, in a similar way to how an experienced chess player can often predict their opponent’s next gambit,” explained oncologist Alberto Bardelli. What’s next: tackling other cancers. Researchers are embarking on clinical trials testing the Natera technology’s efficacy in lung, ovarian and breast cancer monitoring and recurrence detection. It’s way too early to talk about a cancer-free world -- and that might never be possible. Still, we should find some hope in scientists’ creative efforts to address and challenge the disease’s most dangerous qualities.
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Protecting Global Warming


 How can you protect crops against global warming? One  answer: find the secrets of plants that already thrive in the  most punishing climates, says 

Microbiologist Rusty Rodriguez.


When we visualize how climate change will affect our world, many of us picture melting glaciers, waterlogged streets, blistering heat, dried-up lakes and reservoirs, and parched plant life. What may not jump to mind at first are
empty refrigerators and dinner tables. But as
temperatures rise and extreme weather events like hurricanes and floods become more common, worldwide crop yields are expected to diminish. The Intergovernmental Panel on Climate Change believes that the risk of hunger and malnutrition worldwide could increase by as much as 20 percent by 2050, and developing countries are believed to be especially vulnerable. As humanity scrambles for ways to adapt, scientists are looking for ways to protect the future of food. Seattle-based microbiologist Rusty Rodriguez (TEDxRainier Talk: Unlocking the power of symbiosis in a warming world) believes one possible solution might be to leverage an ancient cooperative relationship between fungi and plants.

A microbiologist responds to the threat of climate change. In the 1990 s, Rodriguez was working as a scientist at the US Fish and Wildlife Service in Seattle when he realized that fungi might play a significant role in a warming world. The scientific community was becoming more aware of the wide-ranging effects of climate change, and Rodriguez worried about the plant species that might go extinct in hotter conditions. “Climate change is going to eat our lunch,” he recalls thinking, “and we have no mitigation strategies.”

In search of plants that thrive above 120F. Rodriguez knew that some plants were already growing under hot, harsh conditions. To find out how they did it, he and geneticist Regina Redman (then a colleague, now his wife) went to Yellowstone National Park in the western US, where geothermal soils can reach temperatures up to 155 F (65 C). “You could slow-cook a turkey in these areas!” he says. But some plants flourish in these heated soils, including panic grass. Rodriguez and researchers took some 200 different samples of panic grass from the park and studied them under a microscope, and they found one notable thing: all the plant samples hosted the same fungus.

Fungus so small they fit between the cells in a plant. The microscopic fungus curvularia protuberata was found growing in the spaces between the plant cells. In the lab, Redman and Rodriguez grew two groups of panic grass: ones with the fungus and ones without. To mimic the stressors of Yellowstone, they exposed both sets to soil that fluctuated between daytime temperatures of 155 F and nighttime temperatures of 99 F. The fungus-free plants died after a single day -- and after 10 days, the fungus-infested plants were still going strong.

Symbiotic plant-fungi relationships allow both to thrive against the odds. Inspired by their findings, Redman and Rodriguez began looking at other hardy plants: grasses in the salty dunes of coastal Washington, sagebrush in the Utah high desert, plants in volcanic soils in Costa Rica, even mosses from the slopes of Mt. Everest. They found each plant cell was dominated by a particular strain of fungus, suggesting the fungus was helping its host offset the presence of particular stressors, which included salinity, heat, aridity or cold. “These plants were no more adapted to those stressors than your average garden plant, but they had adapted by forming symbiotic associations with the microscopic fungi that lived inside them,” says Rodriguez.

Certain fungi seem to prevent stressed plants from going into panic mode. When a plant receives less water or more heat than it typically requires, its metabolism goes haywire and it expends increased amounts of energy to survive. Most plants under stress also produce more oxidative chemicals, which are lethal to them in high doses. Redman and Rodriguez are still trying to understand the exact mechanism behind stress resistance, but they theorize that certain fungi help plants handle stressors with greater equanimity -- with them, their metabolism, although it slows down, does so in a more coordinated way, and their production of oxidative chemicals doesn’t spike. The result is steadier growth despite extreme conditions.

The researchers realized a potential use for superpower-conferring fungi: crops. They sprayed different agricultural plants with fungi and subjected them to stressed conditions in their lab -- and found they still grew. “Some fungi have the ability to form symbiotic associations with plants that are genetically distant from the species they were discovered in,” says Rodriguez. Based on their findings, he and Redman formed a company, Adaptive Symbiotic Technologies, as well as the nonprofit Symbiogenics to develop products for the developing world. They’ve created a cocktail that contains 3 to 6 fungi (depending on the crop) in a water-based solution that is sprayed on seeds before planting; as the plant grows, the fungi grow between the plant’s cells. And just as one fungal strain allowed sagebrush to survive in the desert but a different one enabled panic grass to grow in super-hot soil, the mixture relies on a combination of fungi imparting resistance to an array of stressors. Because the fungi don’t grow in the part of the plant that will be harvested and consumed, humans won’t end up eating it. (However, the company has fed symbiotic plants to rats, and the fungi appear to pass safely through their digestive systems.) To avoid the prospect of contamination, the fungi strains die if they spread into the soil. Rather than being genetically modified, the fungi have been selectively bred for certain qualities (e.g., not growing in the “fruit” part of the plant).

The spray has led to promising crop increases in a test case in India. The pair recently worked with growers from a village in the Indian state of Rajasthan. There, farmers coax pearl millet and mung beans from their hot, dry soils, watered by torrential monsoon rains. In the spring of 2016, 96 farmers sprayed 1,300 kilograms of seed. That fall, the average yield difference between sprayed and unsprayed pearl millet was 29 percent; for mung beans, it was 59 percent. “In the US, a significant increase in yield is considered 2 percent,” says Rodriguez. “And these increases happened without requiring any additional land, fertilizer, labor or water." Redman and Rodriguez have just returned from a second trip to India, where they’ve treated 6,000 kilograms of seed for more than 300 farmers. Testing is now underway in the US, Argentina, Brazil, Peru, Uruguay, Australia and Mauritius on crops including corn, soy, wheat, rice, cotton, beans, peas, lentils and sorghum. These experiments will not only assess the efficacy of the cocktail with a variety of crops in a variety of climates but also generate the data that’s needed to receive regulatory approval in these countries.

It’s feared that climate change will have cascading effects on farmers’ lives -- with greater amounts of money being put into producing smaller yields and smaller profits. With the Rajasthani farmers, for example, decreased harvests meant they spent more money buying seed to plant. Rodriguez is hopeful that symbiotic products could have cascading effects in a positive direction: farmers should have more crops to sell, so there will be less seed to buy and more money to spend on other things. After devoting years of research and work to exploring the plant-fungi relationship, Rodriguez wants to emphasize a bigger takeaway, one that could apply to how we deal with other serious challenges. As he says, “There are truly profound accomplishments that we can achieve through cooperation.”

Please subscribe to our blog before you leave. Thank you. 
Share:

Protecting Global Warming


 How can you protect crops against global warming? One  answer: find the secrets of plants that already thrive in the  most punishing climates, says 

Microbiologist Rusty Rodriguez.


When we visualize how climate change will affect our world, many of us picture melting glaciers, waterlogged streets, blistering heat, dried-up lakes and reservoirs, and parched plant life. What may not jump to mind at first are
empty refrigerators and dinner tables. But as
temperatures rise and extreme weather events like hurricanes and floods become more common, worldwide crop yields are expected to diminish. The Intergovernmental Panel on Climate Change believes that the risk of hunger and malnutrition worldwide could increase by as much as 20 percent by 2050, and developing countries are believed to be especially vulnerable. As humanity scrambles for ways to adapt, scientists are looking for ways to protect the future of food. Seattle-based microbiologist Rusty Rodriguez (TEDxRainier Talk: Unlocking the power of symbiosis in a warming world) believes one possible solution might be to leverage an ancient cooperative relationship between fungi and plants.

A microbiologist responds to the threat of climate change. In the 1990 s, Rodriguez was working as a scientist at the US Fish and Wildlife Service in Seattle when he realized that fungi might play a significant role in a warming world. The scientific community was becoming more aware of the wide-ranging effects of climate change, and Rodriguez worried about the plant species that might go extinct in hotter conditions. “Climate change is going to eat our lunch,” he recalls thinking, “and we have no mitigation strategies.”

In search of plants that thrive above 120F. Rodriguez knew that some plants were already growing under hot, harsh conditions. To find out how they did it, he and geneticist Regina Redman (then a colleague, now his wife) went to Yellowstone National Park in the western US, where geothermal soils can reach temperatures up to 155 F (65 C). “You could slow-cook a turkey in these areas!” he says. But some plants flourish in these heated soils, including panic grass. Rodriguez and researchers took some 200 different samples of panic grass from the park and studied them under a microscope, and they found one notable thing: all the plant samples hosted the same fungus.

Fungus so small they fit between the cells in a plant. The microscopic fungus curvularia protuberata was found growing in the spaces between the plant cells. In the lab, Redman and Rodriguez grew two groups of panic grass: ones with the fungus and ones without. To mimic the stressors of Yellowstone, they exposed both sets to soil that fluctuated between daytime temperatures of 155 F and nighttime temperatures of 99 F. The fungus-free plants died after a single day -- and after 10 days, the fungus-infested plants were still going strong.

Symbiotic plant-fungi relationships allow both to thrive against the odds. Inspired by their findings, Redman and Rodriguez began looking at other hardy plants: grasses in the salty dunes of coastal Washington, sagebrush in the Utah high desert, plants in volcanic soils in Costa Rica, even mosses from the slopes of Mt. Everest. They found each plant cell was dominated by a particular strain of fungus, suggesting the fungus was helping its host offset the presence of particular stressors, which included salinity, heat, aridity or cold. “These plants were no more adapted to those stressors than your average garden plant, but they had adapted by forming symbiotic associations with the microscopic fungi that lived inside them,” says Rodriguez.

Certain fungi seem to prevent stressed plants from going into panic mode. When a plant receives less water or more heat than it typically requires, its metabolism goes haywire and it expends increased amounts of energy to survive. Most plants under stress also produce more oxidative chemicals, which are lethal to them in high doses. Redman and Rodriguez are still trying to understand the exact mechanism behind stress resistance, but they theorize that certain fungi help plants handle stressors with greater equanimity -- with them, their metabolism, although it slows down, does so in a more coordinated way, and their production of oxidative chemicals doesn’t spike. The result is steadier growth despite extreme conditions.

The researchers realized a potential use for superpower-conferring fungi: crops. They sprayed different agricultural plants with fungi and subjected them to stressed conditions in their lab -- and found they still grew. “Some fungi have the ability to form symbiotic associations with plants that are genetically distant from the species they were discovered in,” says Rodriguez. Based on their findings, he and Redman formed a company, Adaptive Symbiotic Technologies, as well as the nonprofit Symbiogenics to develop products for the developing world. They’ve created a cocktail that contains 3 to 6 fungi (depending on the crop) in a water-based solution that is sprayed on seeds before planting; as the plant grows, the fungi grow between the plant’s cells. And just as one fungal strain allowed sagebrush to survive in the desert but a different one enabled panic grass to grow in super-hot soil, the mixture relies on a combination of fungi imparting resistance to an array of stressors. Because the fungi don’t grow in the part of the plant that will be harvested and consumed, humans won’t end up eating it. (However, the company has fed symbiotic plants to rats, and the fungi appear to pass safely through their digestive systems.) To avoid the prospect of contamination, the fungi strains die if they spread into the soil. Rather than being genetically modified, the fungi have been selectively bred for certain qualities (e.g., not growing in the “fruit” part of the plant).

The spray has led to promising crop increases in a test case in India. The pair recently worked with growers from a village in the Indian state of Rajasthan. There, farmers coax pearl millet and mung beans from their hot, dry soils, watered by torrential monsoon rains. In the spring of 2016, 96 farmers sprayed 1,300 kilograms of seed. That fall, the average yield difference between sprayed and unsprayed pearl millet was 29 percent; for mung beans, it was 59 percent. “In the US, a significant increase in yield is considered 2 percent,” says Rodriguez. “And these increases happened without requiring any additional land, fertilizer, labor or water." Redman and Rodriguez have just returned from a second trip to India, where they’ve treated 6,000 kilograms of seed for more than 300 farmers. Testing is now underway in the US, Argentina, Brazil, Peru, Uruguay, Australia and Mauritius on crops including corn, soy, wheat, rice, cotton, beans, peas, lentils and sorghum. These experiments will not only assess the efficacy of the cocktail with a variety of crops in a variety of climates but also generate the data that’s needed to receive regulatory approval in these countries.

It’s feared that climate change will have cascading effects on farmers’ lives -- with greater amounts of money being put into producing smaller yields and smaller profits. With the Rajasthani farmers, for example, decreased harvests meant they spent more money buying seed to plant. Rodriguez is hopeful that symbiotic products could have cascading effects in a positive direction: farmers should have more crops to sell, so there will be less seed to buy and more money to spend on other things. After devoting years of research and work to exploring the plant-fungi relationship, Rodriguez wants to emphasize a bigger takeaway, one that could apply to how we deal with other serious challenges. As he says, “There are truly profound accomplishments that we can achieve through cooperation.”

Please subscribe to our blog before you leave. Thank you. 
Share:

Common sense are not too common.



Common sense suggests that learning consists of acquiring new knowledge. Socrates, though, proposed that it involved reorganizing and recalling knowledge we already have. Now here’s an even more radical hypothesis of learning: sometimes, learning is losing knowledge. In other words, learning can also be forgetting -- erasing things that take up useless space and others that are a hindrance to effective thought.

Young children usually write some letters backwards. They might even write a word or an entire sentence as if in a mirror. This is often seen as an endearing temporary clumsiness, but actually, it is an extraordinary feat. First of all, because the children were never taught to write backwards -- they learned it on their own. Secondly, because mirror writing is very difficult -- if you disagree, just try to write an entire sentence backwards.
We have a very poor memory for the configurations of objects. Is the Statue of Liberty's torch in her left or right hand? Our visual system has learned to actively ignore these differences.

What does this teach us about how our brain works? The visual system converts light and shadow into objects, but since objects turn and rotate, the visual system is not very interested in their orientation -- a coffee mug is the same turned backwards. Almost the only exceptions to this rule are certain cultural inventions: letters. The mirror reflection of “p” is no longer a “p” but a “q.” And if we reflect it upside down it is a “d” and then left to right again it is a “b”. The reflection of a letter is not the same letter. That is atypical and unnatural for our visual system.

In fact, we have a very poor memory for the particular configur­ations of objects. For example, almost everyone remembers that the Statue of Liberty is in New York, that it is somewhat greenish, that it has a crown and one hand raised with a torch. But is the torch hand the left or the right?

Our visual system has to actively ignore differences in order to identify that all the rotations, reflections and shifts of an object are still the same object -- that a dog seen in profile and a dog seen head-on are the same dog. This highly effective circuit is ancestral, and it was only later in the history of humanity that alphabets appeared, imposing a cultural convention that goes against our visual system’s natural functioning. Those who are learning to read still function with a default setting in their visual systems, in which “p” is equal to “q”. Part of the process of learning implies uprooting a predisposition.

The brain is not a blank page on which things are written, but rather a rough surface on which some shapes fit well and others don’t.

From the day we are born, the brain already forms sophisticated conceptual constructions, and our learning process is a sort of convergence point between what is presented to us and our predisposition for assimilating it. The brain is not a blank page on which things are written, but rather a rough surface on which some shapes fit well and others don’t. That is a better metaphor of learning -- it’s a process of congruity, of matching.

One of the most exquisite examples is the representation of the world. Greek cognitive psychologist Stella Vosniadou studied thousands and thousands of drawings in detail to reveal how children’s representations of the world change. At some point in their education, children are presented with the idea that the world is round. This is ridiculous, because all the factual evidence they’ve accumulated points to the opposite.

To understand that the world is round, one must unlearn something very natural based on sensory experience: the world is flat. And when we understand that the world is round, other problems emerge. Why don’t people on the other side of the world fall off? On earth, gravity does its job, keeping everybody stuck. But this brings new problems -- why doesn’t the world fall if it is just floating in space?
  • Teaching is not about speaking more simply but rather about translating what you know into another language or way of thinking
The conceptual revolutions we experience throughout our life emulate, to a certain extent, the development of culture in history. Children who are shocked to hear the world is round are replicating the conceptual struggle of Queen Isabella when Columbus suggested his voyage. So the problem of the earth floating is resolved in youth as it was many times in human culture by resorting to stories of giant turtles or elephants holding it up. Each individual finds solutions to resolve a construction of reality according to their own conceptual framework. An expert physicist can understand the world is spinning, it has inertia, it’s in an orbital motion, but an eight­-year-­old cannot solve the dilemma of why the world doesn’t fall with the arguments in her arsenal.

For classroom teachers, parents or friends, it is very useful to know that those who are learning assimilate information in a very different conceptual framework from their own. It is not about speaking more simply but rather about translating what you know into another language or way of thinking. That is why teaching sometimes improves when the teacher is another student who shares the same conceptual framework.

To illustrate this, mathematicians Fernando Chorny, Pablo Coll and Laura Pezzatti and I did a simple test. We put a math problem to hundreds of students who were preparing for an exam in an entry-­level course after dividing them into two groups. The first group was asked to solve the problem, just as with any other test. The second group was asked first to rewrite the question in their own words and only then to solve the problem.

The extra task for the second group meant they had less time and concentration. But it pushed them to do something key to learning: translating that formulation into their own language before solving it. The change was spectacular. The performance of those who rewrote the problem improved almost 100 per cent over those who directly solved the problem.

Throughout time and learn­ing, all of us go through conceptual revolutions that change how we organize concepts and represent the world. But old intui­tive conceptions persist, and we can often trace that childish way of solving problems through adulthood. Understanding how this body of intuitions works in the human mind is one way we can improve how we teach our children.



Excerpted from the new book The Secret Life of the Mind: How Your Brain Thinks, Feels, Decides by Mariano Sigman. Copyright © 2017 by Mariano Sigman. Used with permission of Little, Brown and Company, New York. All rights reserved.

  • please subscribe to our blog before leaving.

Share:

Common sense are not too common.



Common sense suggests that learning consists of acquiring new knowledge. Socrates, though, proposed that it involved reorganizing and recalling knowledge we already have. Now here’s an even more radical hypothesis of learning: sometimes, learning is losing knowledge. In other words, learning can also be forgetting -- erasing things that take up useless space and others that are a hindrance to effective thought.

Young children usually write some letters backwards. They might even write a word or an entire sentence as if in a mirror. This is often seen as an endearing temporary clumsiness, but actually, it is an extraordinary feat. First of all, because the children were never taught to write backwards -- they learned it on their own. Secondly, because mirror writing is very difficult -- if you disagree, just try to write an entire sentence backwards.
We have a very poor memory for the configurations of objects. Is the Statue of Liberty's torch in her left or right hand? Our visual system has learned to actively ignore these differences.

What does this teach us about how our brain works? The visual system converts light and shadow into objects, but since objects turn and rotate, the visual system is not very interested in their orientation -- a coffee mug is the same turned backwards. Almost the only exceptions to this rule are certain cultural inventions: letters. The mirror reflection of “p” is no longer a “p” but a “q.” And if we reflect it upside down it is a “d” and then left to right again it is a “b”. The reflection of a letter is not the same letter. That is atypical and unnatural for our visual system.

In fact, we have a very poor memory for the particular configur­ations of objects. For example, almost everyone remembers that the Statue of Liberty is in New York, that it is somewhat greenish, that it has a crown and one hand raised with a torch. But is the torch hand the left or the right?

Our visual system has to actively ignore differences in order to identify that all the rotations, reflections and shifts of an object are still the same object -- that a dog seen in profile and a dog seen head-on are the same dog. This highly effective circuit is ancestral, and it was only later in the history of humanity that alphabets appeared, imposing a cultural convention that goes against our visual system’s natural functioning. Those who are learning to read still function with a default setting in their visual systems, in which “p” is equal to “q”. Part of the process of learning implies uprooting a predisposition.

The brain is not a blank page on which things are written, but rather a rough surface on which some shapes fit well and others don’t.

From the day we are born, the brain already forms sophisticated conceptual constructions, and our learning process is a sort of convergence point between what is presented to us and our predisposition for assimilating it. The brain is not a blank page on which things are written, but rather a rough surface on which some shapes fit well and others don’t. That is a better metaphor of learning -- it’s a process of congruity, of matching.

One of the most exquisite examples is the representation of the world. Greek cognitive psychologist Stella Vosniadou studied thousands and thousands of drawings in detail to reveal how children’s representations of the world change. At some point in their education, children are presented with the idea that the world is round. This is ridiculous, because all the factual evidence they’ve accumulated points to the opposite.

To understand that the world is round, one must unlearn something very natural based on sensory experience: the world is flat. And when we understand that the world is round, other problems emerge. Why don’t people on the other side of the world fall off? On earth, gravity does its job, keeping everybody stuck. But this brings new problems -- why doesn’t the world fall if it is just floating in space?
  • Teaching is not about speaking more simply but rather about translating what you know into another language or way of thinking
The conceptual revolutions we experience throughout our life emulate, to a certain extent, the development of culture in history. Children who are shocked to hear the world is round are replicating the conceptual struggle of Queen Isabella when Columbus suggested his voyage. So the problem of the earth floating is resolved in youth as it was many times in human culture by resorting to stories of giant turtles or elephants holding it up. Each individual finds solutions to resolve a construction of reality according to their own conceptual framework. An expert physicist can understand the world is spinning, it has inertia, it’s in an orbital motion, but an eight­-year-­old cannot solve the dilemma of why the world doesn’t fall with the arguments in her arsenal.

For classroom teachers, parents or friends, it is very useful to know that those who are learning assimilate information in a very different conceptual framework from their own. It is not about speaking more simply but rather about translating what you know into another language or way of thinking. That is why teaching sometimes improves when the teacher is another student who shares the same conceptual framework.

To illustrate this, mathematicians Fernando Chorny, Pablo Coll and Laura Pezzatti and I did a simple test. We put a math problem to hundreds of students who were preparing for an exam in an entry-­level course after dividing them into two groups. The first group was asked to solve the problem, just as with any other test. The second group was asked first to rewrite the question in their own words and only then to solve the problem.

The extra task for the second group meant they had less time and concentration. But it pushed them to do something key to learning: translating that formulation into their own language before solving it. The change was spectacular. The performance of those who rewrote the problem improved almost 100 per cent over those who directly solved the problem.

Throughout time and learn­ing, all of us go through conceptual revolutions that change how we organize concepts and represent the world. But old intui­tive conceptions persist, and we can often trace that childish way of solving problems through adulthood. Understanding how this body of intuitions works in the human mind is one way we can improve how we teach our children.



Excerpted from the new book The Secret Life of the Mind: How Your Brain Thinks, Feels, Decides by Mariano Sigman. Copyright © 2017 by Mariano Sigman. Used with permission of Little, Brown and Company, New York. All rights reserved.

  • please subscribe to our blog before leaving.

Share:

TELEPHONE ETIQUETTE


Calls etiquette are essential in relationship.

TELEPHONE ETIQUETTE
            Presenting a professional image, both in person and on the telephone, is very important in the Office Skills profession. Taking care of your customers over the telephone and making them feel well informed and appreciated is essential. Whether you are the front office receptionist or an executive secretary, the following phone tips should always be followed.


1. Speak clearly. A picture paints a thousand words but the caller on the other end of the phone can only hear you. They cannot see your face or body language. Therefore, taking the time to speak clearly, slowly and in a cheerful, professional voice is very important.
2. Use your normal tone of voice when answering a call. If you have a tendency to speak loud or shout, avoid doing so on the telephone.
3. Do not eat or drink while you are on telephone duty. Only eat or drink during your coffee break or lunch break.
4. Do not use slang words or Poor Language. Respond clearly with “yes” or “no” when speaking. Never use swears words.
5. Address the Caller Properly by his or her title. (i.e. Good morning Mr. Brown, Good afternoon Ms. Sanders). Never address an unfamiliar caller by his or her first name.
6. Listen to the Caller and what they have to say. The ability to listen is a problem in general but it is very important to listen to what the caller has to say. It is always a good habit to repeat the information back to the client when you are taking a message. Verify that you have heard and transcribed the message accurately.
7. be patient and helpful. If a caller is irate or upset, listen to what they have to say and then refer them to the appropriate resource. Never snap back or act rude to the caller.
8. Always ask if you can put the caller on hold. If you are responsible for answering multiple calls at once, always ask the caller politely if you may put them on hold. Remember that the caller could have already waited several minutes before getting connected to you and may not take lightly to being put on hold. Never leave the person on hold for more than a few seconds or they may become upset and hang up.
9. Always focus on the call. Try not to get distracted by people around you. If someone tries to interrupt you while you are on a call, politely remind them that you are on a customer call and that you will be with them as soon as you are finished.

MAKING CALLS
Calls are best ways to connect to each other.

1. Always identify yourself properly. When calling a client or customer, whether in person or when leaving a message, always identify yourself properly by providing your name, company name and contact telephone number. For example, "Good afternoon Mr. Brown, this is Ms. Brown from Office skills.org. My telephone number is 408-555-1212." Always be aware of confidential information when leaving messages. Also, be aware of people around you while talking on the phone. Be discreet!  Someone next to you might overhear confidential information that could negatively affect your business.
2. Avoid leaving long winded messages. Remember, someone has to listen to your message, write it down and then act upon it. Your message may be just one of many messages that need to be handled. It is often a good habit to write down or type out your message in advance. Keep it brief and to the point.

Make sure to subscribe when leaving.


Share:

TELEPHONE ETIQUETTE


Calls etiquette are essential in relationship.

TELEPHONE ETIQUETTE
            Presenting a professional image, both in person and on the telephone, is very important in the Office Skills profession. Taking care of your customers over the telephone and making them feel well informed and appreciated is essential. Whether you are the front office receptionist or an executive secretary, the following phone tips should always be followed.


1. Speak clearly. A picture paints a thousand words but the caller on the other end of the phone can only hear you. They cannot see your face or body language. Therefore, taking the time to speak clearly, slowly and in a cheerful, professional voice is very important.
2. Use your normal tone of voice when answering a call. If you have a tendency to speak loud or shout, avoid doing so on the telephone.
3. Do not eat or drink while you are on telephone duty. Only eat or drink during your coffee break or lunch break.
4. Do not use slang words or Poor Language. Respond clearly with “yes” or “no” when speaking. Never use swears words.
5. Address the Caller Properly by his or her title. (i.e. Good morning Mr. Brown, Good afternoon Ms. Sanders). Never address an unfamiliar caller by his or her first name.
6. Listen to the Caller and what they have to say. The ability to listen is a problem in general but it is very important to listen to what the caller has to say. It is always a good habit to repeat the information back to the client when you are taking a message. Verify that you have heard and transcribed the message accurately.
7. be patient and helpful. If a caller is irate or upset, listen to what they have to say and then refer them to the appropriate resource. Never snap back or act rude to the caller.
8. Always ask if you can put the caller on hold. If you are responsible for answering multiple calls at once, always ask the caller politely if you may put them on hold. Remember that the caller could have already waited several minutes before getting connected to you and may not take lightly to being put on hold. Never leave the person on hold for more than a few seconds or they may become upset and hang up.
9. Always focus on the call. Try not to get distracted by people around you. If someone tries to interrupt you while you are on a call, politely remind them that you are on a customer call and that you will be with them as soon as you are finished.

MAKING CALLS
Calls are best ways to connect to each other.

1. Always identify yourself properly. When calling a client or customer, whether in person or when leaving a message, always identify yourself properly by providing your name, company name and contact telephone number. For example, "Good afternoon Mr. Brown, this is Ms. Brown from Office skills.org. My telephone number is 408-555-1212." Always be aware of confidential information when leaving messages. Also, be aware of people around you while talking on the phone. Be discreet!  Someone next to you might overhear confidential information that could negatively affect your business.
2. Avoid leaving long winded messages. Remember, someone has to listen to your message, write it down and then act upon it. Your message may be just one of many messages that need to be handled. It is often a good habit to write down or type out your message in advance. Keep it brief and to the point.

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