NEURAL REPAIR : NEW HOPES AND ACHIEVEMENTS

In the past fifty years, medicine made impressive progress in the repair of nerves of the PNS. However, no achievement so far could restore damages in the CNS. Recent discoveries may change this scenario and shed new light on the treatment of neurodegenerative diseases and injuries in the spinal cord. Human Nervous System The human nervous system is composed of a Central Nervous System (CNS) and a Peripheral Nervous System (PNS). The spinal cord and brain compose the CNS, whereas the PNS is basically consisting of nerves. Nerves are similar to an electrical wiring that transmits information between the brain…

Read More

INTELLIGENCE IN PLANTS

Do you remember the Scarecrow from the story Wizard of Oz? He was clever without a brain, and so are plants. Plants are modular organisms, capable of learning, remembering, and making decisions. In their own pace of life, plants take the most of their environment to make intelligent choices. A not-so-quiet life Historically, people used to see plants as passive automatons. The term ‘vegetative’ used to address humans with cerebral death is a vivid example of this mindset. Indeed, plants are sessile organisms. In their evolutionary path, they adopted survival strategies slower and more economical than those adopted by animals.…

Read More

BEYOND REASON : THE INCREDIBLE SIXTH SENSE

Sixth sense, also known as a gut feeling or intuition is an ancestral ability we inherited from the first human beings. Although it is indeed a wonderful gift, there is no paranormal process behind it. Learn how to use your sixth sense to get the most out of it. One brain, two minds Humans have two different types of thinking: analytical and intuitive. The intuitive mind responds for the decision-making process beyond conscious awareness. It is fast and spontaneous and works based on pattern-recognition. It is also old and probably evolved in our ancestors as an alarm system for survival,…

Read More

THE REAL INVISIBILITY CLOAK

The dream of invisibility lives in human imagination. Invisible beings, invisibility cloaks, and unseen devices inhabit many fiction books and movies. In real life, not only magicians can make things disappear right before our eyes, using mirrors, scientists also have some hidden secrets. Learn about the real invisibility cloaks. A matter of perception We know our eyes deceive us all the time (See the article Eyes: Those pretty little liars ). The visible spectrum for the human eye comprises a wavelength range of 390 – 700 nm, which excludes ultraviolet and infrared light. Unfortunately, we cannot admire the elaborate flower…

Read More

EYES : THOSE PRETTY LITTLE LIARS

Can we trust our eyes? Sometimes our vision plays tricks on us; we can either ‘see’ things that are not even there or not see something that is right before our eyes. Learn how this is possible. Playing hide-and-seek Sometimes we try to find something, look for it everywhere to finally find it at the very first spot we had checked. It happens often, doesn’t it? When there are more people with us, we can even blame them for hiding the object. ‘That could only be the work of that mischief friend’, we might think. If we are alone, things…

Read More

A SEA OF PLASTIC

Alarming 40% of our ocean is filled with plastic debris. If we don’t change our lifestyle, we will have plastic more than fish in the oceans by 2050. Although the current situation is pretty bad, there is still hope. Learn the real size of the problem and possible solutions to address it. The plastic era The invention of plastic changed our lives. It is cheap, flexible, and durable. The début of plastic occurred in the 19th century, with the creation of polystyrene (PS) and polyvinyl chloride (PVC). With a massive need for metal for military purposes in the Second World…

Read More

CAN MEDITATION CHANGE OUR BRAINS ?

Meditation

Learn how meditation helps fighting stress Have you ever notice how calm and centered are the persons who practice meditation? What happens in their minds? Recent scientific discoveries show that meditation practice changes brain activity and structure. By changing the mental state, meditation provides many health benefits. On hectic days, meditation can be a wonderful tool against stress. The buzz of modern life Modern life can be stressful. There is no time to stop. People do not eat, rest, sleep, or relax properly. There is no time to waste. We bring work home, as mobiles and e-mails made us reachable…

Read More

THE NEW OLYMPIC CHAMPIONS : EMERGING VIRUSES

The truth about Brazilian epidemics The next Olympics and Paralympics games will be held in Rio de Janeiro, Brazil in August and September 2016. Together with athletes and guests from all over the world, uninvited visitors are also taking part in the event: three different viruses transmitted by mosquito bites. In this article, I give you information about the diseases and how you can protect yourself while attending the games. The experienced competitor: Dengue virus The Dengue virus, genus Flavivirus (Flaviviridae), is an old acquaintance to Brazilians. The first outbreak occurred in Roraima, northern Brazil, in 1980. Six years later,…

Read More

Generating Electricity From Plants

Generating Electricity From Plants

The modern world claims for new sources of clean, renewable energy. The available bioenergy sources are not as green as they claimed to be. The current use of biomass usually produces some waste and competes with food crops for space. Scientists created a non-destructive technology that uses living plants, including food crops, for generating electricity from plants. Plant use in energy production over time Plants have the capacity to transform solar energy into chemical energy and store part of this energy in the form of sugars (carbohydrates). With the discovery of fire, the humankind found out how to use the…

Read More

THIRD DENTITION IN HUMANS : FICTION OR REALITY ?

Third Dentition

A couple of years ago I was flipping through magazine as a short note on human third dentition caught my attention. On those no more than five lines lay the hope of tooth renewal. ‘Fantastic!’, I said to myself, ‘but it is too good to be true.’ So, I decided to investigate. Here I share some of my findings. The action of time Aging affects all living organisms. Nothing escapes from the action of time. Natural processes make flowers blossom, whereas others make them wither some time later. Natural processes affect teeth similarly. After teething, toddlers bear bright white pearl-like…

Read More