Monday, 26 August 2013

498. Big Data - Hadoop delivers on a Modern Data Architecture

Hadoop delivers on a Modern Data Architecture

To rise to the challenge of big data, the modern data center demands lower cost, higher capacity infrastructure to complement existing EDW, RDBMS and MPP systems. Apache Hadoop, and the Hortonworks Data Platform (HDP) meet that need.

Integrated and Compatible
HDP is designed to operate alongside existing datacenter infrastructure, combining with existing ETL operations providing processing at a larger scale than ever before.

Capable and Efficient
HDP enables data refinement and exploration at scale in a cost effective way across commodity hardware and unlocks the value of your big data to enrich your apps and experiences.

Integrating with Existing Data Center Investments

HDP and HDP for Windows means that Hadoop can run across the broadest array of datacenter infrastructure owing to native Linux and Windows support. It is also available in integrated hardware from Teradata, and HDP provides the basis for Microsoft’s HDInsight Service meaning complete portability of data is retained on-premise and in the cloud.

At all points in the data center architecture, from ETL through to processing and analysis, Hortonworks has joined forces with key partners trusted globally to provide enterprise solutions in the data center.

The explosion of data in the enterprise has created an entirely new class of storage and processing requirements that were never envisioned when our legacy RDBMS systems first came into being. It is machine generated data, sensor data, social data, web logs and other such types that are both growing exponentially, but also often unstructured in nature. It also includes data that was once thought of as low to medium value or even ‘exhaust data’: too expensive to store and analyze. And it is this type of data that is turning the conversation from “data analytics” to “big data analytics”: because so much insight can be gleaned for business advantage.

Why Hortonworks?
Hortonworks provides the fastest path to innovation by working with the open source community by identifying and developing enterprise requirements for Hadoop.

Find Out More

Hortonworks Data Platform
The Hortonworks Data Platform is a 100% open source distribution of Apache Hadoop that is truly enterprise grade having been built, tested and hardened with enterprise rigor.

Discover HDP

Business Value of Hadoop
Sources of Big Data are turning the conversation from “data analytics” to “big data analytics” because they hold significant business value.

See How

497. Cholesterol - High Cholesterol on the Body?

What Are the Effects of High Cholesterol on the Body?

Cholesterol is a fatty, waxy substance that is needed to develop healthy cells.

However, too much cholesterol can cause health problems. High cholesterol can be inherited or caused by unhealthy eating and lack of exercise.

Prevention includes limiting foods that are high in cholesterol, exercising regularly and talking with a medical professional about any questions or types of medication.

Atherosclerosis

Uncontrolled high cholesterol can cause atherosclerosis, which occurs when plaque builds up in the artery walls.

Plaque is a substance that is made up of cholesterol, fat and calcium.

When plaque builds up in the artery walls it causes the arteries to become hard and narrow.

The arteries provide blood and oxygen to the body and when blocked, the blood and oxygen cannot pass through.

This can result in a stroke or heart attack.

The Heart Lung and Blood Institute reports that signs and symptoms of atherosclerosis can include

1. chest pain,

2. shortness of breath,

3. numbness or

4. pain in limbs.

Nevertheless, some people won't experience any symptoms.

Heart Attack

When cholesterol builds up in the artery walls and blocks oxygen and blood flow, a person is at risk of having a heart attack.

During a heart attack, the plaque ruptures and forms a clot that can block the arteries from receiving blood and oxygen, and the heart muscles begin to die.

If blood flow is restored in time, through cardiopulmonary resuscitation, or CPR, the heart can sometimes be revived.

According to MayoClinic.com, signs and symptoms of a heart attack can include

1. shortness of breath,

2. chest pain,

3. sweating,

4. fainting,

5. nausea and

6. vomiting and

7. pain beginning in the chest and

8. PAIN radiating to

a. the shoulder,

b. arm,

c. back, or

d. even to the teeth and jaw.

People who are experiencing any of these signs and symptoms should seek medical treatment immediately

Angina

• Angina, which is characterized by the chest tightening and pain, is the result of restricted blood flow due to clogged arteries from too much bad cholesterol in the blood. Arteries become clogged and narrow because of the fatty deposits of plaque building up which restricts blood flow to the heart. Angina can often lead to coronary heart disease.

Stroke.

When the arteries to the brain become blocked or narrowed due to high cholesterol, blood and oxygen can't get to the brain. When brain cells don't get enough oxygen and blood, they begin to die and a person can suffer a stroke. Signs and symptoms include difficulty speaking or slurred speech, difficulty walking, paralysis or numbness on one side of the face or body, blurred, double or blackened vision. Some people experience a sudden, severe headache that can result in vomiting, dizziness or altered consciousness. Strokes require immediate medical treatment.

Peripheral Artery Disease

• High cholesterol also increases the chance of peripheral arterial disease. The disease is a result of leg arteries becoming blocked by plaque buildup. As a result, your legs fail to get the needed oxygen or blood and PAD develops, which is a painful disease of the leg arteries. Besides affecting the legs, PAD can raise the threat of a heart attack and other heart problems.

High Blood Pressure

• While good cholesterol doesn't cause high blood pressure, bad cholesterol does. In fact, good cholesterol can help with attaining a normal blood pressure. High levels of bad cholesterol can stick to the artery walls, as well as other blood vessels. This blocks the passageways for the blood to flow, making your heart work twice as hard. There's also a stronger force of blood on the artery walls, which leads to high blood pressure.

Function

Cholesterol helps the body produce hormones, bile acid, and vitamin D. Cholesterol moves through the bloodstream to be used by all parts of the body.

Food Sources

Cholesterol is found in eggs, dairy products, meat, and poultry. Egg yolks and organ meats (liver, kidney, sweetbread, and brain) are high in cholesterol. Fish generally contains less cholesterol than other meats, but some shellfish are high in cholesterol.

Foods of plant origin (vegetables, fruits, grains, cereals, nuts, and seeds) contain no cholesterol.

Fat content is not a good measure of cholesterol content. For example, liver and other organ meats are low in fat, but very high in cholesterol.The popular matumbo( intestines) also contains a lot of cholesterol.

For more Information please Call Joint Medical Service

Tel. 0724 255 378 (24/7)

Information compiled by Ms. Judith Odera

496. Cholesterol - Side Effects of High Cholesterol Levels

Side Effects of High Cholesterol Levels

Cholesterol is vital to having a normally functioning body. It is a wax-like substance that is present in all areas of the body and helps to produce hormones, bile and vitamin D.

However, cholesterol is dangerous when it is in high amounts in the bloodstream.

Types of Cholesterol

o There are two types of cholesterol that are directly linked with your health: low-density cholesterol (LDL) and high-density cholesterol (HDL).

Causes

o A high-fat diet, hereditary conditions, weight, age, small amount of physical activity and alcohol use promote high levels of low-density cholesterol, which is detrimental to your health.

Effects of High Cholesterol

o High levels of LDL leads to blockage in the arteries by forming plaque, which increases the risk of a heart attack. In addition to a higher risk of heart attack, having high cholesterol also increases the risk for strokes, high blood pressure, coronary heart disease and an irregular heart rhythm.

How High Cholesterol Affects You

o The effect of high cholesterol depends on how much the plaque blocks the artery. If the plaque completely blocks an artery, the effects will be much more severe than if the plaque only partially blocks an artery.

Cost of High Cholesterol

o Maintaining a high cholesterol level will lead to high medical costs in the form of medication and possible hospitalization.

Preventing High Cholesterol Levels

o The easiest way to prevent high cholesterol is to exercise regularly, eat foods that are rich in fiber and carbohydrates instead of fat, and to maintain a healthy body weight.

495. Cholesterol - How Does High Cholesterol Affect Body Systems?

How Does High Cholesterol Affect Body Systems?

Lower Cholesterol Tips

        How does high cholesterol affect body systems? Cholesterol in and of itself, is a natural function of the human body. Every living being requires a certain amount of fat to exist to overall health and maintain body function. Like everything in nature, it only becomes a problem when there is an imbalance, and they affect to your body systems.
        How does high cholesterol affect body systems?
        High levels of bad cholesterol in your blood stream may even prevent arteries from functioning at all, since cholesterol can actually lead to blockages in your arteries.
        To understand how does high cholesterol affect body system, we must learn what is arteries and how does they can be affect by cholesterol?
        The job of your arteries is to pump blood.
        Each body system has arteries which are responsible for providing the oxygen rich blood that keeps us alive.
        In a healthy person, as the heart beats, the arteries expand and are filled with blood.
        The heart relaxes and produces enough force to push the blood through.
        This system works effectively and the blood can carry oxygen and other essentials throughout the body.
        High cholesterol levels fill the arteries with fatty deposits, thick substances that prevent your body from working well and this becomes a dangerous obstacle to good health.
        Your heart becomes starved of required blood.
        If this happens often enough you can suffer a heart attack or a stroke.
        The main cause behind heart disease is this thickening of the fatty deposits in the arteries, and the main reason behind the blocking of arteries is high levels of bad cholesterol.
        This means that if you want to prevent heart disease, heart attacks, and strokes, you need to keep your cholesterol levels in a healthy range.
        No matter what your current health, eating a better diet and getting exercise can help keep you healthy.
Now, we have known how does high cholesterol affect body systems? So consider about this matter:
Heart disease is one of the leading killers in the world.
        Lowering your cholesterol levels through a heart-healthy diet and exercise regimen is one of the best ways to prevent heart disease.
        Lowering cholesterol is actually quite simple, and doesn't require surgery or drugs with healthy lifestyle, lowering your cholesterol is easy since it helps normalize your cholesterol, naturally, safely and enjoy a better and possibly longer life.

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