ABOUT ME

My name is HAITHAM AL-BUSAIDI I study now in Nizwa College of Applied Science, I study Information Technology which means "encompasses all forms of technology used to create, store, exchange, and use information in its various forms (business data, voice conversations, still images, motion pictures, multimedia presentations, and other forms, including those not yet conceived). In this major, I study "Foundations of Digital Technology" and "Introduction to Dynamic Web Development ). In "Foundations of Digital Technology" I study how to create database, how to develop system and Enterprise Computing. And in "Introduction to Dynamic Web Development" I study how to create blogs and web sites. This major will benefit me because it helps me in several areas for example to enter my data in database, manage my works, communicate with others in all countries and may be in the future new hardware or software will come and only the person who studies systems analysis and programs will know how to use them and he will explain it to others. This major will also help my community, for example today's life uses Information Technology in several areas such as to know the quality of the disease in the human body and know the problems in machines such as cars. Also it helps the international company to communicate with others. These are just some of the Information Technology benefits for me and my community.

SWINE FLU

WHAT IS SWINE FLU ?

Swine Influenza (swine flu) is a respiratory disease of pigs caused by type A influenza viruses (H1N1 subtype) that causes regular outbreaks in pigs. People do not normally get swine flu, but
human infections can and do happenSwine flu viruses have been reported to spread from person-to-person, but in the past, this transmission was limited and
not sustained beyond three people.

SIGNS AND SYMPTOMS

The symptoms of swine flu in people are similar to the symptoms of regular human flu and include fever, cough, sore throat, body aches, headache, chills and fatigue. Some people have reported diarrhea and vomiting associated with swine flu. In the past, severe illness (pneumonia and respiratory failure) and deaths have been reported with swine flu infection in people. Like seasonal flu, swine flu may cause a worsening of underlying chronic medical conditions.

SIGNS AND SYMPTOMS

The symptoms of swine flu in people are similar to the
symptoms of seasonal flu in humans and may include:
􀀹 Fever (greater than 100°F or 37.8°C)
􀀹 Sore throat
􀀹 Cough
􀀹 Stuffy nose
􀀹 Chills
􀀹 Headache and body aches
􀀹 Fatigue

HOW DOES SWINE FLU SPREAD ?

Spread of this swine influenza A (H1N1) virus is thought to be
happening in the same way that seasonal flu spreads. Flu viruses
are spread mainly from person to person through coughing or
sneezing of people with influenza. Sometimes people may
become infected by touching something with flu viruses on it and
then touching their mouth or nose.

His Majesty Sultan Qaboos

His Majesty Sultan Qaboos was born in Salalah, the most southerly city of the state then known as Muscat and Oman, on 18th November 1940. He was the only son of the late Sultan Said bin Taimur and the eighth direct descendant of the royal Al Busaidi line founded in 1744 by Imam Ahmad bin Said. Sultan Qaboos spent his childhood in Salalah. When he reached the age of 16, his father sent him to a private school in England, and in 1960 he entered The Royal Military Academy Sandhurst as an officer cadet. After passing out of Sandhurst, he spent a year with a British infantry battalion on duty in Germany and then held a staff appointment with the British army. Later, speaking to young officers at a passing out parade, Sultan Qaboos recalled his own military training. “The values that I absorbed have remained with me forever afterwards,” he said. “I learned that discipline is not just something one imposes on others; it is something that one has, above all, to apply to oneself, if one is to be a worthy leader of men. I also learned the true meaning of service: that is, to give, and not to expect to receive, and that it is the team, and not oneself, that matters. I learned that with responsibility comes obligation.”Having finished his military service, His Majesty studied local government in England and then embarked on a tour of the world. When he returned to Oman, he spent six years studying Islam and Omani history in Salalah. On the abdication of his father and his subsequent accession on 23rd July 1970, Sultan Qaboos moved to Muscat to implement his vision for the country’s development.Like his famous ancestor Imam Ahmad, the founder of the Al Busaidi dynasty, an outstanding leader who had ended a turbulent era of civil wars and brought peace and stability to Oman, Sultan Qaboos inherited a stagnant, conflict-ridden country. In his first address to the nation, he declared that the country would be unified as the Sultanate of Oman, with a new flag, and ended restrictions on freedom of movement. He called on Omanis who had left the country to return home in order to contribute to the challenges that lay ahead and to use their talents and expertise to modernise a once powerful nation that had fallen into poverty and decline.Apart from his role as ruler, His Majesty Sultan Qaboos is a man of diverse interests. He has been an enthusiastic horseman since childhood and enjoys other outdoor pursuits, including walking and tennis. His military training has left him with a keen interest in weapons and military equipment; he is an adept marksman and is proud of the Omani shooting team’s numerous international successes. He has studied a variety of subjects ranging from religion to astronomy and the environment, languages, literature and history. His passion for music led him to establish the Royal Oman Symphony Orchestra in 1985.

The eye in detail

The eye in detail Here is a cross section of the human eye. read the information to find out more about each part

1. Vitreous humourThis fluid preserves the spherical shape of our eyeball, as well as helping to support the retina. Despite having the consistency of egg white it is mainly made of water (99%).

2. Ciliary bodyThe ciliary body comprises two parts – the ciliary process and the ciliary muscle. It is the latter which causes the lens to change shape. If the eye is focusing on a distant object the muscles relax, causing the ligaments to tighten and the lens to lengthen. When we focus on an object nearby the muscles tighten, the ligaments slacken, and the lens shortens.The lining of the ciliary body also secretes aqueous humour, the fluid which fills the front of the eye.

3. LensThe lens is responsible for refracting light. Held in place by ligaments, which connect to the ciliary body, the lens can also change shape to focus on objects at different distances – a reflex known as accommodation. It does this approximately 100,000 times a day.

4. CorneaAlthough normally only half a millimetre thick, the cornea is responsible for seventy percent of the total focusing of the eye. It is the most important layer in the refractive procedure and, together with the lens, forms a clear image on the back of the retina.

5. ConjunctivaThe conjunctiva is merely a thin, transparent membrane covering the cornea, and yet its function is vital – it protects the eye from airborne debris. This is actually only one of the protective features of the human eye. Others include the orbit (or eye socket), the eyelashes and, quite surprisingly, the eyebrows – their function being to stop sweat from running into the eye.Tears, which constantly bathe the surface of the eye, also remove dust and dirt – as well as killing bacteria.

6. Aqueous humourThe watery liquid at the front of the eye, secreted mainly by the ciliary body.

7. IrisThe iris is a thin diaphragm that lies behind - and is visible through - the cornea. The iris contains the pupil, which dilates and constricts to regulate the light that reaches the retina.

8. ChoroidThe choroid runs behind the retina and, at the front of the eye, forms the ciliary body. As it contains many blood cells, the choroid supplies the eye with nutrients and oxygen – as well as removing waste.The choroid also has a high concentration of a pigment called melanin in its cells. It is this pigment that prevents internal reflection within the eye – stopping us from receiving a blurred image.

9. RetinaThe back of the retina contains a deep layer of light sensitive cells called rods and cones. This is where the image is projected. Rods are responsible for night vision, while cones are responsible for daytime vision. The cones also allow us to see in colour and detail.The retina also contains a layer of ganglion cells on the surface. These cells connect the nerve fibres to the optic nerve. This means that the nerve fibres actually pass over the sensitive part of the eye, but, odd as it may seem, no disturbance in vision is caused.

10. ScleraBasically, this is the white of the eye. Attached to the sclera are six exterior muscles, which enable us to look left, right, up and down. At the front of the eye, the sclera forms the cornea.

11. Optic nerveThe optic nerve is responsible for carrying information about the image to the brain. It contains no sensory receptors itself, and therefore therefore the head of the optic nerve (otherwise known as the Optic Disc) corresponds to the normal blind spot of the eye.

12. FoveaThis area of the retina is packed with cone cells. Because of this, it gives the most acute vision. For example, when we are reading, the word on which we are focusing is being projected onto the fovea.

Romans

Romans are the people settle in the middle of the Italian peninsula starting from the twelfth century AD , before they found the city of incient Rome, and then the work of the people to organize and develop its political, military social and began to expand the foundation of a progressive and controlled in the first instance on the Italian peninsula and then the state has and took control of most of the ancient world and its borders has become a vast spread of the British Isles and the Atlantic shores of Europe west to Mesopotamia and the east coast of the Caspian sea and control Europe to the north of the Alps and the Sahara in Africa Red sea and the south and was an example of the concept of the state university (universal state) of a colonial nature and lasted until the fifth century AD when the Germanic tribes were able to control the provinces of the Romanian state in 476 meters.

Sunglasses

Sunglasses or sun glasses are a visual aid, variously termed spectacles or glasses, which feature lenses that are coloured or darkened to prevent strong light from reaching the eyes. In the early Twentieth century they were also known as sun cheaters (or simply cheaters).
Many people find direct sunlight too bright to be comfortable. During outdoor activities, the human eye can receive more light than usual. Healthcare professionals recommend eye protection whenever outside to protect the eyes from ultraviolet radiation, which can lead to the development of a cataract. Sunglasses have long been associated with celebrities and film actors primarily from a desire to hide or mask their identity. Since the 1940s sunglasses have been popular as a fashion accessory, especially on the beach.

History
It is said that the Roman emperor Nero liked to watch gladiator fights with emeralds. These, however, appear to have worked rather like mirrors. Flat panes of smoky quartz which offered no corrective powers but did protect the eyes from glare were used in China in the 12th century or possibly earlier. Contemporary documents describe the use of such crystals by judges in Chinese courts to conceal their facial expressions while questioning witnesses.
James Ayscough began experimenting with tinted lenses in spectacles in the mid-18th century. These were not "sunglasses" as such; Ayscough believed blue- or green-tinted glass could correct for specific vision impairments. Protection from the sun's rays was not a concern of his.