Featured Post Today
Latest Post
Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts
Psychology,
Relationship,
Science
It is evident that we humans prefer to go with someone who is nearly similar to us. This is also one of the basis of non-physical attraction. And if you spent more time with someone you'll not only get to know that person well but you might also be able to absorb some of that person's trait and the same goes with that person, this is what we all know as influence. Let me share you something related to physics.
Long distance relationship? Physics it is!
Astronomy,
History,
Science
What is a year?
You gotta be kidding me..
You might be thinking that this post is hilariously stupid, of course a year is the revolution of the earth in the sun or exactly 365 and 1/4 days. Well somehow that's true, but somehow it's also incorrect in some sense. There are different types of years with different length for each years, the most common is the Tropical Year (which is the basis for most calendars) but there are more kinds of years not just two or three, but more than five excluding the other planet's year (Martian/Uranian Year).
You might be thinking that this post is hilariously stupid, of course a year is the revolution of the earth in the sun or exactly 365 and 1/4 days. Well somehow that's true, but somehow it's also incorrect in some sense. There are different types of years with different length for each years, the most common is the Tropical Year (which is the basis for most calendars) but there are more kinds of years not just two or three, but more than five excluding the other planet's year (Martian/Uranian Year).
Health,
Science
Dercum’s disease is an extremely rare disorder characterized by multiple, painful growths consisting of fatty tissue (lipomas). These growths mainly occur on the trunk, the upper arms and upper legs and are found just below the skin (subcutaneously). Pain associated with Dercum’s disease can often be severe. Pain may be caused by these growths pressing on nearby nerves. Dercum’s disease mainly occurs in adults and more women are affected than men. In some cases, affected individuals may also experience weight gain, depression, lethargy, and/or confusion. The exact cause of Dercum’s disease is unknown.
Rare Diseases : Dercum's Disease
Dercum's Disease
Health,
Science
> Paraneoplastic cerebellar degeneration
> Encephalomyelitis
> Limbic encephalitis
> Brainstem encephalitis
>Paraneoplastic Opsoclonus (involving eye movement)-Myoclonus
> Anti-NMDA receptor encephalitis
> Polymyositis
Rare Diseases : Paraneoplastic Neurologic Syndromes (PNS)
Paraneoplastic Neurologic Syndromes (PNS)
Paraneoplastic neurologic syndromes (PNS) are a group of conditions that affect the nervous system (brain, spinal cord, nerves and/or muscles) in patients with cancer. The term "paraneoplastic" means that the neurological syndrome is not caused by the tumor itself, but by the immunological reactions that the tumor produces. It is believed that the body’s normal immunological system interprets the tumor as an invasion. When this occurs, the immunological system mounts an immune response, utilizing antibodies and lymphocytes to fight the tumor. The end result is that the patient’s own immune system can cause collateral damage to the nervous system, which can sometimes be severe. In many patients, the immune response can cause nervous system damage that far exceeds the damage done to the tumor. The effects of PNS can remit entirely, although there can also be permanent effects.
Epidemiology
PNS are rare diseases occurring in less than about 0.01% of patients with cancer. Only the Lambert-Eaton myasthenic syndrome is relatively frequent, occurring in about 1% of patients with small-cell lung cancer
Classes :
* Endocrine - can be related to :
> Cushing`s Syndrome
> Syndrome of Inappropriate Anti-Diuretic Hormone
> Hypercalcemia
> Hypoglycemia
> Carcinoid Hormone
> Polycythemia
> Hyperaldosteronism
* Neurological - can be related to :
> Lambert-Eaton myasthenic syndrome (LEMS)> Paraneoplastic cerebellar degeneration
> Encephalomyelitis
> Limbic encephalitis
> Brainstem encephalitis
>Paraneoplastic Opsoclonus (involving eye movement)-Myoclonus
> Anti-NMDA receptor encephalitis
> Polymyositis
Diagnosis and management
PNS may affect any part of the central and peripheral nervous system, the neuromuscular junction and muscle. They can be isolated or occur in association. An important point to keep in mind is that none of these disorders are specifically paraneoplastic, as each disorder can also occur in patients without cancer. The incidence of malignancy in patients with potential PNS varies depending on the disorder and ranging from 5 to 60%. In almost 80% of patients, the PNS antedates the diagnosis of cancer by several months to several years. Most tumors are diagnosed within 4–6 months. It is accepted that the risk of cancer development decreases significantly two years after diagnosing PNS and becomes very low after four years. All these data explain why it is often difficult to recognize a given neurological disorder as paraneoplastic.
Treatment
The different subtypes of PNS are defined by the presence or the absence of paraneoplastic antibodies and the type of antibodies. Management and treatment should be tailored to each subtype. For example, patients with SCLC and PCA have different course of the neurological disorder, response to treatment, tumor prognosis and cause of death, according to the presence or the absence of Hu-Ab. Patients with Ma2-Ab generally develop limbic and brainstem encephalitis with testis tumors, but patients with Ma2-Ab and additional antibodies directed against other Ma proteins develop additional cerebellar symptoms and have tumors other than testis neoplasms. The mean survival time for patients with SCLC and CV2-Ab is 2.5 times longer than for patients with the same cancer, similar neurological symptoms and Hu-Ab. All these data suggest that the type of the immunological stimulation against the tumor can determine a specific course of the neurological disorder and give information of whether the immunological response against the tumor is more or less effective.
However, PNS rarely improves with immunomodulatory treatment as in the majority of cases the neurological symptoms are due to neuronal damage. The early and non-reversible destruction of neural structures by the inflammatory process accounts for both the severity of most PNS and for the usual ineffectiveness of immunomodulatory treatments. The best chance of at least stabilizing the syndrome is to induce a complete response of the tumor. Although immunotherapy is rarely effective, the use of intravenous immunoglobulins, steroids or plasmapheresis is indicated because a few patients have been reported to improve with these treatments. Patients with Tr-Ab and Ma2-Ab and testicular cancer are more likely to improve than those with other antibodies.
Sources :
Health,
Science
Rare Diseases : Progressive Multifocal Leukoencephalopathy (PML)
Progressive Multifocal Leukoencephalopathy (PML)
Progressive multifocal leukoencephalopathy (PML) is a neurological disorder characterized by destruction of the myelin, an oily substance that helps protect nerve cells in the brain and spinal cord, also known as central nervous system (CNS) white matter. It is caused by a virus called JC virus (JCV), named after the initials of the patient in whom it was first discovered. The virus is widespread, found in at least 85% of the general adult population. It remains inactive in healthy individuals and causes disease only when the immune system has been severely weakened, such as in people with HIV/AIDS, or hematological malignancies, and in organ transplant recipients who receive immuno- suppressant medications to avoid rejection of the transplanted organ. Altogether, PML occurs in approximately one in 200,000 people.
The term "progressive" in PML means that the disease continues to get worse and often leads to serious brain damage. The term "multifocal" means that JCV causes disease in multiple parts of the brain. However, it is possible for an individual with PML to have only one brain lesion instead of several lesions. The term "leukoencephalopathy" means that the disease affects mainly the white matter of the brain or myelin, although there are some rare cases in which the gray matter neurons is also involved.
Is there any treatment?
Currently, the best available therapy is reversal of the immune-deficient state, since there are no effective drugs that block virus infection without toxicity. Reversal may be achieved by using plasma exchange to accelerate the removal of the therapeutic agents that put patients at risk for PML. In the case of HIV-associated PML, immediately beginning anti-retroviral therapy will benefit most individuals. Several new drugs that laboratory tests found effective against infection are being used in PML patients with special permission of the U.S. Food and Drug Administration. Hexadecyloxypropyl-Cidofovir (CMX001) is currently being studied as a treatment option for JVC because of its ability to suppress JVC by inhibiting viral DNA replication.
What is the prognosis?
In general, PML has a mortality rate of 30-50 percent in the first few months following diagnosis but depends on the severity of the underlying disease and treatment received. Those who survive PML can be left with severe neurological disabilities.
What research is being done?
The National Institute of Neurological Disorders and Stroke (NINDS) and other institutes of the National Institutes of Health (NIH) conduct research related to PML in laboratories at the NIH, and support additional research through grants to majorresearch institutions across the country. Much of this research focuses on finding better ways to prevent, treat, and ultimately cure disorders such as PML.
Sources :
Annals of Neurology (Author[s]: Mateen, F. J.; Muralidharan, R.; Carone, M.; Van De Beek, D.; Harrison, D. M.; Aksamit, A. J.; Gould, M. S.; Clifford, D. B. et al)
Cool Stuff,
Science
A colorful arc of colors in the sky that symbolizes hope and beauty, rainbow, legend says that there is a pot of gold in the end of a rainbow but that's just a myth. Well in reality a rainbow is an optical and meteorological phenomenon that causes a spectrum of light to appear in the sky, the color is formed because of the moisture in the air where it reflect and refract.
Rainbow Rainbow in the sky
18+,
Health,
Psychology,
Relationship,
Science
We cannot admit that this generation has become so adventurous that even as early as 14 years old some of them are already engaged in sexual intercourse. But did you know that sex has benefits in both of our physical and emotion aspect. Well anything in excess is not good, there are also what we call sexually transmitted disease, but don't worry there are different ways on how to protect ourselves with these diseases.
A great stress reliever:
Maybe this doesn't surprise you but countless research has proven that having a regular sexual intercourse will greatly lower your blood pressure, relax your body.
Immunity booster
Study shows that having sex once or twice a week will increase your antibody called immunoglobulin A or igA, which is a good protection against cold and other infections.
How fun is sex?
Introduction
We cannot admit that this generation has become so adventurous that even as early as 14 years old some of them are already engaged in sexual intercourse. But did you know that sex has benefits in both of our physical and emotion aspect. Well anything in excess is not good, there are also what we call sexually transmitted disease, but don't worry there are different ways on how to protect ourselves with these diseases.
Benefits of Sex
I know what you are thinking now, fun and pleasure right? Yes that's true, that is one of the benefits of having sexual intercourse, but there are other surprising benefits of sex.A great stress reliever:
Maybe this doesn't surprise you but countless research has proven that having a regular sexual intercourse will greatly lower your blood pressure, relax your body.
Immunity booster
Study shows that having sex once or twice a week will increase your antibody called immunoglobulin A or igA, which is a good protection against cold and other infections.
Science
Cracking your knuckles - myth?
Cracking your knuckles affect your joints – Fact or Myth?
Some says that cracking your knuckles, neck, back and other parts of your body will affect your joins and sometimes result to arthritis. But Did you know? that the sound we hear are actually air pockets in your body, and they just pop when you crack them. Each joints in our body is filled with synovial fluid, a thick fluid that lubricates our joints. When we don’t usually use joint the pressure in our synovial fluid drops and form bubbles (just like other fluids, stop stirring them and they will form bubbles or other noticeable changes), when we crack them they are not actually “Cracking” sounds they are “Popping sounds”.
Did you know? The process of cracking a joint is called “Cavitation”.
Is it good?
Notice why we need to warm up before doing some physical activities such as jogging? We do that so that our joints will not be forced by our movements, and cracking our joints is one way of doing it. As long as it doesn’t hurt it’s still a good thing, but something in the neck must be done with care because our neck is a very vital part.
So it doesn’t cause arthritis?
As of this time there is no scientific proof of that claim. There is still NO link between arthritis and Cavitation. Although cracking your knuckles feels good specially after a hard day of work, we still need to take precautions, don’t overdo it and when you feel a pain after you crack them then stop it for a while or consult a doctor.
Sources:
Health,
Science
Facebook Addiction Disorder
Introduction
Just like drug, Facebook can be addictive in a way that it affects your life, education, word, socialization, family and other important things rather than liking, commenting and sharing to useless things we see on facebook. An American psychologist believes so. In fact, he even introduced a new term to describe such an addiction. FAD, or Facebook Addiction Disorder, is a condition that is defined by hours spent on Facebook, so much time that the very life of an individual is already affected (Mostly in work or school). It has been said that approximately 350 million people are suffering from this disorder that is detected through a simple set of six-criteria. People who are victims of the condition must have at least 2-3 of the following criteria during a 6-8 month time period.
These are the 6 symptoms of FAD:
1.Tolerance: A person suffering from this disorder cannot live a day or minute without seeing his/her precious wall. If you are the type of person that can’t live a moment without opening your account then you should think twice.
Did you know? An average facebook user spend 7 hours a month.
Health,
Science
Smoking and its benefits
Everyday we can see people from teens to adults smoking a stick of cigarette. We can also see the word “Cigarette smoking is dangerous to your health”, but do we really know the danger that this stick can bring to our lives?
How dangerous is it?
We all know that cigarette has lots of chemicals in it, but do we really know how dangerous they are?
Carcinogens
Carcinogens are substances that can cause or worsen an existing cancer, and Did you know?that in every stick of cigarette there are about 60 carcinogens present in this deadly little sticks.
Common Carcinogens present in a Cigarette
Benzene – Gasolines and pesticides contain this kind of chemical, and cigarette also contain this kind of harmful substance. There is a very high amount of Benzene in every stick of cigarette and half of our exposure to this hazardous chemical comes from cigarettes.
Formaldehyde – When the morgue needs to preserve a dead body they put Formaldehyde to prevent the body from decaying for some moment, this is also a very hazardous chemical and it is the reason why smokers experience throat, nose and eye irritation while smoking cigarette.
TSNA - Tobacco-specific N-nitrosamines are also present to cigarette sticks and is a kind of carcinogen.
Toxic Metals
Toxic metals or heavy metals are metals that when taken in a very small can support life (some), but when taken in large amount it can become toxic and might kill a person.
Note: Taking a little amount everyday is not an excuse.
Cool Stuff,
Science
http://www.youtube.com/watch?v=2Z6UJbwxBZI
Superfluid - What is it?
Introduction
All of us are familiar with the 3 states of matter namely; solid, liquid and gas. But have you ever heard of the ‘Superfluid’ state of matter? Yes you read it right, it’s a superfluid but not a kind of water than can cure cancer or can fly, it has nothing to do with superheroes. But this state of matter has some extraordinary property which is unusual to normal liquids, one of its extraordinary property is that it does have a zero viscosity.
Viscosity
The resistance of a fluid is called viscosity, lower viscosity means lower resistance and higher viscosity means higher resistance. Let’s take for example water and honey, water has a lower viscosity than honey and in that way you can guess what viscosity means, in Filipino language we call it “Lapot”, a fluid with lower viscosity can flow easily than a fluid with higher viscosity.
Superfluid
Since a superfluid doesn’t have viscosity then it doesn’t have friction too, it means that it can escape on small holes that a normal fluid can’t surpass. The most common superfluid is the Helium-4 (2 neutrons and 2 protons), when it was tested in a container it forms a super thin film of fluid about the size of 30nm (Nanometer) under the surface to “escape” its container.
Video:
http://www.youtube.com/watch?v=bmvlIdNXxjM
Cool Stuff,
Science
The Smallest Particle
Introduction
During our elementary and highschool years they always tell us that the smallest particle in the universe is the Atom or sometimes it is the Neutron or the center of an atom. Well this thing is somewhat, inaccurate.
Quark
The smallest particle known to humankind is the Quark, quark is an elementary particle, which means it is the basic of all basic. There are 6 types or what we call flavors of Quark, the Up, Down, Top, Bottom, Charm and Strange, mixing 1 quark to another will produce different kinds of subatomic particles (2 Up and 1 Down quark is a proton).
Hadron
Just like any other things, when quarks are mixed with other quarks and form another subatomic particle it is no longer a Quark, it is now called a Hadron. Neutron, electron, positron, neutron, proton, neutrinos and other subatomic particles that we know are all considered as Hadron.
Baryons and Mesons
Hadron can be classified into two kinds, the Baryons and Mesons. Baryons are Hadrons that are formed by 3 quarks (Proton for example), while Mesons on the other hand is a quark mixed with an anti-quark. Some scientist suggest that tetraquarks and pentaquarks may also exist (4 and 5 quarks) but their existence was not YET proven as of now.
More Information
Up and Down Quarks are the most stable of all quarks while Charm and Strange are the most unstable, that’s why Proton is made up of Up and Down is also a stable particle. Charm and Strange is most likely to decay into Top and Bottom, then Top and Bottom quark may also decay into Up and Down quark.
Like us on: www.facebook.com/TriviaManiaOfficial
