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Welcome!




Welcome to Nolver's Science Corner! If you would like to read my blog, visit my website on Nolver's Cozy Corner. This page is dedicated to people who are into scientific subjects. Don't hesitate to be a member of this page!

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Thursday, December 5, 2013

The Greenhouse Effect


I don't fully agree with the video, because they mentioned that tropical plants would appear in the UK, due to the Greenhouse Effect, which I believed initially as well. But that's not true. Instead of those tropical plants etcetera, the weather will be more severe because of the Greenhouse Effect, so that means hotter weather/summers in TROPICAL countries, colder winters in countries with a cold climate!


Monday, December 2, 2013

Bypass Surgery Might Be History Soon.....


GOOD NEWS TO ALL !!


In a ground breaking discovery that may eventually render bypass surgery history, researchers at Tel Aviv University have shown that an injected protein can regrow blood vessels in the human heart.

In heart disease, blood vessels are either clogged or die off, starving the heart of oxygen and leaving it highly susceptible to a cardiac attack.

Dr. Britta Hardy of TAU's Sackler School of Medicine and her team of researchers have developed a protein-based injection that when delivered straight to muscles in the body, sparks the regrowth of tiny blood vessels.

The new vessels in the heart could give millions of people around the world a new lease on life.

"The biotechnology behind our human-based protein therapy is very complicated, but the goal is simple and the solution is straightforward. We intend to inject our drug locally to heal any oxygen-starved tissue.

So far in animal models, we've seen no side effects and no inflammation following our injection of the drug into the legs. The growth of new blood vessels happens within a few weeks, showing improved blood circulation," said Hardy.

The protein solution can also be added as a coating to a stent. Usually, the implantation of a stent is accompanied by a high risk for blood clots, which necessitates the use of blood thinners.

"We could coat a stent with our peptide, attracting endothelial stem cells to form a film on the surface of the stent. These endothelial cells on the stent would eliminate the need for taking the blood thinners that prevent blood clots from forming," said Hardy.

If investment goals are met, the researchers are hoping that toxicity studies and Phase I trials could be complete within two years.

The researchers began the study for preventing leg amputations, positing that proteins from the human body could be used to trigger the growth of new blood vessels.

Hardy started by studying a library of peptides and testing them in the laboratory and later confirmed initial results. She then took some of the isolated and synthesized peptides and tested them in diabetic mice whose legs were in the process of dying.

Although diabetes is known to decrease blood circulation, Hardy found that her therapy reversed the decrease. "Within a short time we saw the formation of capillaries and tiny blood vessels.

After three weeks, they had grown and merged together with the rest of the circulatory system," she said. In mice with limited blood circulation, she was able to completely restore blood vessels and save their legs.

It was then a short step to studying the applicability of the research to cardiac patients. "It''s pretty obvious if there is regrowth or not.

Our technology promises to regrow blood vessels like a net, and a heart that grows more blood vessels becomes stronger. It's now imaginable that, in the distant future, peptide injections may be able to replace bypass surgeries," concluded Hardy.

The study has been published in Biochemical Pharmacology.


Tuesday, November 26, 2013

Top 10 Evidence-Based Health Benefits of Coconut Oil


1. Coconut Oil Contains a Unique Combination of Fatty Acids With Powerful Medicinal Properties
2. Populations That Eat a LOT of Coconut Are Among The Healthiest People on The Planet
3. Coconut Oil Can Increase Your Energy Expenditure, Helping You Burn More Fat
4. The Lauric Acid in Coconut Oil Can Kill Bacteria, Viruses and Fungi, Helping to Stave Off Infections
5. Coconut Oil Can Kill Your Hunger, Making You Eat Less Without Even Trying
6. The Fatty Acids in Coconut Oil Are Turned into Ketones, Which Can Reduce Seizures
7. Coconut Oil Can Improve Blood Cholesterol Levels and May Lower Your Risk of Heart Disease
8. Coconut Oil Can Protect Hair Against Damage, Moisturize Skin and Function as Sunscreen
9. The Fatty Acids in Coconut Oil Can Boost Brain Function in Alzheimer’s Patients
10. Coconut Oil Can Help You Lose Fat, Especially The Dangerous Fat in Your Abdominal Cavity

So all these years we have been lied to by the Western world, telling us, that coconut oil is an unhealthy substance, in order to promote their own goods...what a terrible and selfish behaviour! Fortunately times are changing so we can do the researches from our goods by ourselves.


Source: authoritynutrition.com



Friday, November 8, 2013

Natural cure for cancer 10,000 times stronger than chemotherapy


I can confirm this, because a family member had a high risk of getting prostate cancer. He got some graviola and made tea out of it. The doctor couldn't explain why the risk decreased significantly....






Saturday, October 12, 2013

Females with African hair should always deep-condition their hair



http://www.afrofashionidol.com/images/softsh10.jpghttp://www.blackhair-webshop.nl/_upload/ProductImages/African_Pride_Olive_Miracle_Leave-In_Conditioner_(425_g)706594-9181594.jpg
As a chemical engineer I can confirm this, it's not nonsense or just a new trend from the new millennium. Let me explain why.

Hair consists of keratin, a protein. Keratin is a protein that occurs as a structural element in animals and is a classic example of a fiber protein. Proteins are large biological molecules consisting of one or more chains of amino acids. The low pH of the conditioner protonates the amino acids, providing the hair with positive charge and thus more hydrogen bonds among the keratin scales, giving the hair a more compact structure. When this chemical reaction has happened, the hair will be easier to comb, it will be smooth, soft and shiny, also by the oils which are in the conditioner to coat your hair.


African hair is usually very curly and rougher in nature, but their are many different kinds of African hair. Strong African hair (kinky/hard hair) feels rough, but it doesn't have to be! Conditioning your hair, using masks, oils, etc. on a regular basis will make/keep your hair very fit, smooth and shiny. So appearantly all these years, we have treated our natural African hair very wrong, because we didn't know these things, but times are finally changing for our benefit. You can have long hair too as a black woman with African hair! Take a look at this video How to get long African hair.

Good luck!


Friday, September 27, 2013

How to make your burger less salty


Homemade burgers are often way too salty. You know what you can do with salty burgers? Boil the hamburger in water for 5 minutes and then pour the water into the sink. Boil the burger for a second time in hot water for 5 minutes and pour the water into the sink and let the hamburger dry on air. Your burger will now taste a lot less salty and actually it tastes much better!


Saturday, September 14, 2013

Derivative


In calculus, a branch of mathematics, the derivative is a measure of how a function changes as its input changes. Loosely speaking, a derivative can be thought of as how much one quantity is changing in response to changes in some other quantity; for example, the derivative of the position of a moving object with respect to time is the object's instantaneous velocity.

The derivative of a function at a chosen input value describes the best linear approximation of the function near that input value. Informally, the derivative is the ratio of the infinitesimal change of the output over the infinitesimal change of the input producing that change of output. For a real-valued function of a single real variable, the derivative at a point equals the slope of the tangent line to the graph of the function at that point. In higher dimensions, the derivative of a function at a point is a linear transformation called the linearization. A closely related notion is the differential of a function.

The process of finding a derivative is called differentiation. The reverse process is called antidifferentiation. The fundamental theorem of calculus states that antidifferentiation is the same as integration. Differentiation and integration constitute the two fundamental operations in single-variable calculus.

Differentiation and the derivative

Differentiation is a method to compute the rate at which a dependent output y changes with respect to the change in the independent input x. This rate of change is called the derivative of y with respect to x. In more precise language, the dependence of y upon x means that y is a function of x. This functional relationship is often denoted y = f(x), where f denotes the function. If x and y are real numbers, and if the graph of y is plotted against x, the derivative measures the slope of this graph at each point.

The simplest case is when y is a linear function of x, meaning that the graph of y divided by x is a straight line. In this case, y = f(x) = m x + b, for real numbers m and b, and the slope m is given by


m=\frac{\text{change in } y}{\text{change in } x} = \frac{\Delta y}{\Delta x},

where the symbol Δ (the uppercase form of the Greek letter Delta) is an abbreviation for "change in." This formula is true because

y + Δy = f(x + Δx) = m (x + Δx) + b = m x + m Δx + b = y + m Δx.

It follows that Δy = m Δx.

This gives an exact value for the slope of a straight line. If the function f is not linear (i.e. its graph is not a straight line), however, then the change in y divided by the change in x varies: differentiation is a method to find an exact value for this rate of change at any given value of x.
The idea, illustrated by Figures 1 to 3, is to compute the rate of change as the limiting value of the ratio of the differences Δy / Δx as Δx becomes infinitely small.

In Leibniz's notation, such an infinitesimal change in x is denoted by dx, and the derivative of y with respect to x is written

 \frac{dy}{dx} \,\!

suggesting the ratio of two infinitesimal quantities. (The above expression is read as "the derivative of y with respect to x", "d y by d x", or "d y over d x". The oral form "d y d x" is often used conversationally, although it may lead to confusion.)

The most common approach to turn this intuitive idea into a precise definition uses limits, but there are other methods, such as non-standard analysis.

 Source: Wikipedia.com

Tuesday, September 10, 2013

Remedie tegen wat minder glasvochttroebeling


Vaak als je last hebt van glasvochttroebeling, heb je jeukende ogen, zie je soms wazig, last van droge ogen en lijken de troebelingen soms meer. Ik had hier laatst zo een last van dat ik dacht dat dit wellicht een allergische reactie kon zijn, want dit ging ook gepaard met veel niezen en verkoudheid. Ik heb een tabletje genomen dat werkt tegen allergische reacties en voìla: de jeuk in mijn ogen verdween en het leek net alsof ik minder last had van de troebelingen. Ook het droge gevoel in mijn ogen verdween.

Het tabletje die ik heb gebruikt heet Desloratadine ratiopharm 5 mg en heeft me enorm geholpen. Deze tabletten zijn alleen via de huisarts verkrijgbaar.

Sunday, August 18, 2013

Geweldige oplossing voor sluierstaarvissen die last hebben van hun zwemblaas na het eten


We hebben gewikt en gewogen en uiteindelijk kwam de oplossing: ervoor zorgen dat de korrels die ze eten, eerst zinken naar de bodem. Doe dit als volgt:
  1. Laat een hoeveelheid voedingskorrels eerst 30 minuten weken in een schoon bakje met water.
  2. Druk/plet de korrels plat met een schoon stokje of een pincet, zodat hieruit lucht ontsnapt uit de korrels en deze naar de bodem zinken.
  3. Geef deze "gezonken" korrels aan het visje. Het visje zal hierdoor de korrels niet meer eten aan de oppervlakte, maar gewoon in het water.
Dit heeft enorm veel wonderen gedaan voor ons visje, ze heeft geen last meer van haar zwemblaas!

Monday, August 12, 2013

Do you have a difficult bowel movement?


Here is a great solution for you: Wapiti Bowel Function Complex. In the beginning you will have some bowel cramps, but after two days, you will notice nothing of this pain anymore. It will help you to do your business in an easy way, I can really recommend this treatment.

Saturday, July 27, 2013

What Are Hiccups And What Causes Them?





What are hiccups?

 A hiccup, medically known as SDF (synchronous diaphragmatic flutter) or singultus, is a sudden, involuntary contraction of the diaphragm which occurs at the same time as a contraction of the voice box (larynx) and total closure of the glottis, effectively blocking air intake. The glottis is the middle part of the larynx, where the vocal cords are located. Hiccups may also be spelled "hiccoughs".

Experts are not sure what causes hiccups and why we do them. Most agree that they are often triggered by minor stomach upsets. Sometimes, hiccups are said to have a psychological, rather than a physical cause - however, nobody really knows. In the majority of cases, hiccups resolve without any treatment within a few minutes. Hiccups, which can occur individually or in bouts, commonly happen rhythmically - the interval between each hiccup is relatively constant. Most people find them to be a minor nuisance. However, prolonged hiccups can became a serious medical problem and require treatment. Prolonged hiccups affect men much more than women. When attacks last longer than a month, the hiccups are termed intractable.
  

What are the causes of hiccups? 

 Experts are not sure what the mechanisms are that cause hiccups, or why they occur. According to studies and feedbacks we receive at Medical News Today, the following circumstances, conditions and illnesses have been associated with a higher risk of developing hiccups:

  •  Hot food has irritated the phrenic nerve. The phrenic nerve is near the esophagus.
  • When there is gas in the stomach, which presses against the diaphragm.
  • Too much food is eaten.
  • Food is eaten too rapidly.
  • There is a sudden change in temperature.
  • Fizzy drinks are consumed.
  • Some people get hiccups after eating spicy foods.
  • After eating dry breads.
  • Many people anecdotally report hiccups after consuming alcoholic beverages.
  •  Some medications, such as opiates, benzodiazepines, anesthesia, corticosteroids, barbiturates, and mythyldopa are known to cause hiccups.
  • Some medical conditions are linked to a higher incidence of hiccups, such as:
    •  gastrointestinal conditions, including IBD (inflammatory bowel disease), a small bowel obstruction, or GERD (gastro-esophageal reflux disease)
    • respiratory conditions, such as pleurisy, pneumonia or asthma
    • conditions which affect the CNS (central nervous system), including a traumatic brain injury, encephalitis, a brain tumor, or stroke
    • conditions which irritate the vagus nerve, such as meningitis, pharyngitis or goitre
    • psychological reactions, including grief, excitement, anxiety, stress, hysterical behavior, or shock
    • conditions which affect metabolism, including hyperglycemia, hypoglycemia, or diabetes
    • Often, hiccups occur unexpectedly and neither the patient nor the doctor can identify their likely cause. 

Sunday, June 9, 2013

10 Tips for Getting Good Sleep



There’s a lot of advice out there about getting good sleep -- and it's very important. We quickly adjust to being sleep-deprived, and don't notice that we aren't functioning at a normal level, but lack of sleep really affects us. If you're feeling blue or listless, try going to sleep thirty minutes earlier for a week. It can really help.

Here are tips that have helped me get good sleep:

Good habits for good sleep:
  1. Exercise most days, even if it’s just to take a walk.
  2. No caffeine after 6:00 p.m.
  3. An hour before bedtime, avoid doing any kind of work that takes alert thinking. Addressing envelopes—okay. Analyzing an article—nope.
  4. Adjust your bedroom temperature to be slightly chilly.
  5. Keep your bedroom dark. Studies show that even the tiny light from a digital alarm clock can disrupt a sleep cycle. We have about six devices in our room that glow bright green; it’s like sleeping in a mad scientist’s lab. I have to put a pillow over the cable box.
  6. Keep the bedroom as tidy as possible. It’s not restful to fight through chaos into bed.
  7. If sleep won’t come:  Breathe deeply and slowly until you can’t stand it anymore.
  8. If your mind is racing (you’re planning a trip, a move; you’re worried about a medical diagnosis), write down what’s on your mind. This technique really works for me.
  9. Slather yourself with body lotion. This feels good and also, if you’re having trouble sleeping because you’re hot, it cools you down.
  10. If your feet are cold, put on socks.

By Gretchen Rubin on Intent.com

Reference: http://shine.yahoo.com/channel/health/10-tips-for-getting-good-sleep-464736/

Monday, May 6, 2013

Crystallization



Crystallization is a technique which chemists use to purify solid compounds. It is one of the fundamental procedures each chemist must master to become proficient in the laboratory. Crystallization is based on the principles of solubility: compounds (solutes) tend to be more soluble in hot liquids (solvents) than they are in cold liquids. If a saturated hot solution is allowed to cool, the solute is no longer soluble in the solvent and forms crystals of pure compound. Impurities are excluded from the growing crystals and the pure solid crystals can be separated from the dissolved impurities by filtration.

This simplified scientific description of crystallization does not give a realistic picture of how the process is accomplished in the laboratory. Rather, successful crystallization relies on a blend of science and art; its success depends more on experimentation, observation, imagination, and skill than on mathematical and physical predictions. Understanding the process of crystallization in itself will not make a student a master crystallizer; this understanding must be combined with laboratory practice to gain proficiency in this technique.

What Happens During a Crystallization

To crystallize an impure, solid compound, add just enough hot solvent to it to completely dissolve it. The flask then contains a hot solution, in which solute molecules - both the desired compound and impurities - move freely among the hot solvent molecules. As the solution cools, the solvent can no longer hold all of the solute molecules, and they begin to leave the solution and form solid crystals. During this cooling, each solute molecule in turn approaches a growing crystal and rests on the crystal surface. If the geometry of the molecule fits that of the crystal, it will be more likely to remain on the crystal than it is to go back into the solution. Therefore, each growing crystal consists of only one type of molecule, the solute. After the solution has come to room temperature, it is carefully set in an ice bath to complete the crystallization process. The chilled solution is then filtered to isolate the pure crystals and the crystals are rinsed with chilled solvent.

This first series of diagrams shows what happens if you let a crystallization proceed slowly: first by setting the flask at room temperature undisturbed until crystals form, and then carefully on ice. The red bar to the right of each image is a thermometer, to indicate the temperature. The yellow triangles are an impurity in the hot solution of orange hexagons. If the solution is allowed to cool slowly, the impurities may attach briefly to the growing crystal lattice, but they soon leave as a compound with a more suitable geometry comes in to take their place. Suitable hexagons stay more readily in the growing lattice, and eventually pure crystals of orange hexagons are formed.

 
 



 



    

This second series of diagrams shows what happens if you cool the solution too quickly. The yellow triangle impurities are trapped inside the crystals being formed by the orange hexagons, thus, the crystals isolated are impure. Note that slow crystallization gives larger crystals than fast crystallization. Small crystals have a large surface area to volume ratio and impurities are located on the surface of the crystals as well as trapped inside the matrix.

 
 
 
 

Watch the crystallization video:



Source: http://orgchem.colorado.edu