วันเสาร์ที่ 6 มีนาคม พ.ศ. 2553
วันศุกร์ที่ 5 มีนาคม พ.ศ. 2553
The Tennis Masters' Plans for the 2008 Clay Season
As we enter the European clay-court portion of the ATP Masters season many big names in the sport have already began their training to get set for the coming challenges the red courts will bring. Amongst them there is Australian Open champion Novak Djokovic; who is strongly pursuing the number one spot. Djokovic whose last appearances were at Indian Wells where he obtained the title and at the Sony Ericsson Open in Miami where he was ousted in the first round; has officially announced he will participate in the three majors clay events in Monaco, Hamburg and Rome.
During the 2007 season and so far into the 2008 ATP season the Serb has become the strongest opponent to take on both masters; Nadal and Federer and claim either ranking positions. Nevertheless, Djokovic admits he learns something new every day and he can only hope to keep developing his skills as he has done for the past years.
Great Britain's number one player Andy Murray who had a relatively good come back after his absence due to a wrist injury; has recently slipped out from the top 20; fact which has become a major concern for the Scott. Murray has contacted Spaniard clay court expert French Open runner-up Alex Corretja to become part of his team of experts. Corretja whose background speak for himself achieved 17 titles before retiring in 2004. The Spaniard stated he has seem Murray's potential to play in different surfaces and will gladly be part of his group. Murray's campaign will kick off in Valencia, Spain next April 14th.
Then there is the Swiss superstar Roger Federer who arrives title less to the end of the first quarter of the year. Federer's 2008 ATP season began with many bumps on the road as he had to withdraw from his usual practice event in Australia due to an illness. He then moved in to the first Grand Slam of the year in Australia; but at this point we all saw something was just not right. Nevertheless, Federer played all matches and arrived to the finals where he lost to Novak Djokovic. His second stop at the Dubai Open was overshadowed by a quick first round exit and finally his other two appearances at the Masters Series events in California and Miami where he made to the semi finals and quarterfinals respectively.
Federer admitted he has been looking for answers to his drought but his trainers and doctors insist he is still recovering from his illness and he is not yet at a 100 percent. The Swiss master's career has been almost superhuman as he claimed in only four years most of his 12 Grand Slam titles.
Nevertheless; Federer will participate for the first time at the 2008 Estoril Open in Portugal in order to gain more practice and better his game on this type of surface. Furthermore; he will continue his tune up in Monte Carlo, Rome and Hamburg on his way to Paris to participate at the not yet conquered French Open; where he has reached the final the last two years losing to Rafael Nadal.
World number two Rafa Nadal who is also without a title has managed to shorten the point distance to just 670 points. But he will soon be facing as well the pressure of the red surface that has given him his three Grand Slams titles. Besides holding his titles in Barcelona, Rome and Paris the raging bull will still need to win in Hamburg to surpass the Swiss Fed and this is not an easy task.
วันพฤหัสบดีที่ 4 มีนาคม พ.ศ. 2553
วันพุธที่ 3 มีนาคม พ.ศ. 2553
Title - OSI Layers Model
Seven Layers of OSI Model
The seven layers of the OSI model are the logical layers and are developed by the ISO (international standardization organization). The purpose of these layers is to understand the transmission of the data flow from the source to the destination and to identify the problems during data transmission. The seven layers include Application, Presentation, Session, Transport, Network, Data link and Physical layer. The sequence of the layers names can be remembered by this phrase "All People seems to need data processing". Following is the general overview of each of the layer. OSI reference model is now being considered as a primary model for the internetworking and inter computing. The seven layers divide the task of data transmission into sub tasks and then complete the data transmission cycle.
Application Layer
Application layer defines the interfaces of the communication and data transfer. Job transfer, network access, error handing and supports user applications. These protocols are operates on the application layer FTP, DNS, SNMP, SMTP, FINGER, TELNET, TFTP and BOOTP.
Presentation Layer
The basic function of the presentation layer is to present the data into the uniform format. It also translates the data from the application to the network format. This layer is responsible for encryption, decryption, protocol conversion and data compression.
Session Layer
Session layer is responsible for establishing a session between two network users and it also manages who can transfer the data first and for how long. The protocols such as NetBIOS, Mail Slots, Names Pipes and RPC work on the session layer.
Transport Layer
Transport layer manages to provide end to end data transmission delivery and it also checks the errors checking and provides guaranteed error free data transmission. These protocols work on the transport layer TCP, SPX, NETBIOS, ATP and NWLINK.
Network Layer
Network layer translates that how data will travel in the network and it also translates the MAC address into the IP address. Router works on the network layer. At source the data is broken into the smaller pieces known as packets and at the destination data is again reassembled to form the original message. These protocols work on the network layer IP, ICMP, ARP, RIP, OSI, IPX and OSPF and the network devices such as router, Brouter, Gateway and ATM also works on the Network layer.
Data Link Layer
Data link layer defines the procedure for data transmission it also detects and corrects the transmission errors. It also manages link control.
Physical Layer
Network cables, LAN cards, hubs and repeaters work on the physical layer. It also provides the interface between network and the network communication devices. It also checks the number of bits transmitted per second.
Hopefully the above mentioned description provides you the basic overview of the seven layers of the OSI model and their functionalities.
วันอังคารที่ 2 มีนาคม พ.ศ. 2553
Everybody Loves Resveratrol Supplements
I'm a big proponent of resveratrol supplements. I think they're the best thing. I've been bending my family's ears about it for about a year now, but I had never talked to my mother-in-law about it. I don't usually get into her business that much, however she's struggled with her weight a bit in recent years (although I'd say that to her face) and seemed to be losing a bit of her usual vigor last time I saw her.
Not so today. After getting my regular serving of "advice" from her the conversation had warmed up a bit. I asked her if she knew about resveratrol, and if so, would she be open to taking resveratrol supplements. She got a little 'animated' and then launched into one of her stories.
Do I know about resveratrol supplements? Let me tell you what I know about resveratrol supplements. I'm going down the stairs to the subway last week and, you know, it's crowded. I'm waiting there on the platform and there's this... lady, you know. So she's making herself up, fluffing herself all over her face with powder. Finally she's finished. She puts her case away and then pulls out a stick of gum. It was Arrowmint, possibly Juicy Fruit. I don't know. She bends it onto her tongue and starts chewing, real polite like. Then she takes it out again. She puts it in a tissue, and now she's taking out another bottle.
I'm looking at her all this time and I can't stand it. I say to her, "Excuse me. What are you doing?" "I'm taking my resveratrol. Who are you?" "My name is Florence. Resvera what?" "ResveraTROL. Mind your own business Florence. Look, your train is coming!" And so it was. How did she know that? Well, I got home and asked Pearl's little boy Anthony to find out what resveratrol was for me on the internet. It's an anti-aging supplement Andrew! I bought myself a bottle of resveratrol!
I told Flo I was "happy" she was going to be with us even longer. Piecing together the chain of events that led to even my mother-in-law finding out about. and then becoming a consumer of resveratrol supplements, made me realize just how much awareness of Resveratrol has steadily grown over the last five years or so. Researchers have been publishing papers on resveratrol research since 1991, but was in 2006 when David Sinclair and Joseph Bauer published their research paper in the scientific journal Nature that excitement over resveratrol really started to build.
Then TV magazines got a hold of the story, did their profiles on Sinclair and catapulted Resveratrol into the popular awareness. Any why not? Resveratrol has a story unlike any other health product on the market. When taken in sufficient concentration, it activates a normally silent gene called the Sirtuin gene. The 'turning on' of the Sirtuin gene triggers a survival mechanism in humans, the result of which is the activation of the body's natural genetic defenses against diseases. What kind of natural genetic defenses are we talking about? Well quite a few, and in the most lethal of diseases.
Diabetes: Resveratrol improves the ability of diabetes sufferers to break down and use sugar, lowering their blood glucose level.
Cardiovascular Disease: Resveratrol lowers the levels of free radicals in arterial endothelial cells (cells that line the arteries) and prevents arterial plaque, that hardens arteries, from forming.
Cancer: Resveratrol targets specific proteins that necessary in the formation of cancer cells and also destabilizes the process leading to cancer cells forming.
Alzheimer's Disease: Resveratrol interferes with the ability of amyloid-beta, the protein that causes neuron degeneration in Alzheimer's Disease, to accumulate, as well as reducing the toxicity in the amyloid-beta that has already accumulated.
Obesity: Resveratrol reduces fat mass by signaling to fat cells to stop accumulating fat, and to shed the fat that has already accumulated.
And if you aren't suffering from any disease, Resveratrol still:
increases your energy by inducing 'mitochondrial biogenesis', which results in more ATP (the molecule that produces energy) being produced
is a high powered antioxidant helping keep the body clean and making exercise easier.
It's no wonder then, with all this going for it, that resveratrol supplements have appeared on the market and are being promoted quite heavily. But all is not well on the resveratrol supplement front. Unfortunately, the public excitement over resveratrol has been exploited to a certain degree by some supplement vendors. The result has been products being promoted as resveratrol that are in fact a low quantity of resveratrol combined with a cocktail of other ingredients, free trial offers with autoship programs that are very difficult to cancel out of, companies with very bad customer service (or no customer service at all), deceptive marketing, and more.
The con artists will be found out and eliminated from the marketplace soon enough, they are not my main concern. The most important question about resveratrol supplements, I believe, is how much resveratrol should you take? Well, that really deserves a discussion all of it's own, but if we are to follow the lead of those who really would know, it would be instructive to see what the people researching resveratrol "do" when it comes to taking supplements.
David Sinclair has indicated in a couple of interviews that he takes resveratrol. This itself is very heartening. But how much does he take? He hasn't directly said (as Harvard Medical School doesn't allow him to), but he has indicated he takes a dosage of 5mgs per kg of body weight per day. That puts his daily resveratrol dosage at about 315 mgs per day. If you want to emulate his intake for yourself, multiply your body weight in kilograms by 5 mgs and you will have your daily serving. The average person will end up between 300 and 500 mgs per day.
So you're a bit on the heavy side and after doing that calculation you are a little worried about taking too much? Take heart, research has been done with human subjects showing daily resveratrol dosages as high as 9000 mgs cause no adverse side effects. The only signs of toxicity showed up when the daily dose of resveratrol was 10,000 mgs. I conveyed this fact to my mother-in-law, trying to gently suggest she could probably afford to buy a more potent supplement formulation than the one she had. "I'm very happy with my resveratrol Andrew... Thank you!". It comes in the mail every month." What can you do? At least has her spark back.
Resveratrol supplements are here to stay, the benefits are too many and too profound for resveratrol to ignored or for it to go away. Let's face it, if the whole story hooked Flo, well, I think you should look into including them in your daily supplement regime too.
วันจันทร์ที่ 1 มีนาคม พ.ศ. 2553
A Carb Isn't a Carb - The Difference Between Complex and Simple Carbohydrates
As you might know not all carbohydrates are created equal. For example eating white bread does not have the same effect on your body as eating 100% whole wheat bread. This has to do with the glycemic index (GI) and how your body digests it. There are two main types of carbohydrates (carbs); simple carbs and complex carbs. Since carbs make up such a huge chunk of what we eat on a daily basis it is imperative to know what they do and how they help your body. In this article we will take a good look at what simple and complex carbs are and exactly what you should look out for when choosing what to eat.
The Low-Down on Simple Carbohydrates
Carbohydrates are basically compounds of carbon and hydrogen. They are classified into two types - complex and simple carbohydrates. Simple carbohydrates are those which are already broken down in the body. Better known as "bad" carbs, simple carbs are already broken down and then re-processed in an artificial way to produce the final product. Such carbohydrates are most commonly found in chocolates. In addition to this, there are natural simple carbohydrates as well. These are easy to digest for the body.
Carbohydrates in general, provide energy to the body. Simple carbohydrates are broken down easily by the body. So these act as a quick source of energy. Common sources of natural simple carbohydrates are fruits, milk and milk products. They can also prove to be harmful if taken in large amounts. But, that is like everything else in life. Taking the right quantity of carbohydrates is one of the key factors in maintaining good health. You need to know which carbohydrates contain what substances and in what proportion. Educate yourself from the description given below about simple carbohydrates.
Simple carbohydrates contain three types of sugars namely - fructose (fruit sugar), glucose (blood sugar) and galactose. Since they are easily digested by the body and they cause an immediate rise in the blood sugar levels. So eating too much may damage the body as it alarmingly increases the blood sugar level, thus causing diabetes. High intake can also causes fats to be stored in cells. However our body does need certain amount of carbohydrates to perform its activities. Sportsmen consume high amounts of glucose to boost their energy levels.
Hence, the notion that eating more carbohydrates would lead to unhealthy body is false. The fact is that all carbohydrates are stored as calories inside the body. As long as these calories are burnt from time to time they are not at all harmful. One should have a close look at one's lifestyle to know exactly what is needed for their own body the body.
Complex Carbohydrates Never Tasted So Good
Very much opposite to simple carbohydrates are complex carb, also known as "good carbs". Complex carbs are recommended by most fitness professionals for many reasons.
A key to maintaining good health is to replace the intake of simple carbs with complex carbs. The body breaks down all carbohydrates into glucose. It then produces something known as an energy molecule, which is medically known as Adenosine Triphosphate (ATP). Unlike simple carbs, complex carbs take time to be broken down into glucose and ultimately into ATP molecule. They also provide essential minerals and vitamins required for the body over a longer period of time which keeps you full and wards off fat storages.
Key sources of complex carbohydrates are bran, wheat gram, barley, maize, and oatmeal. Consuming carbohydrate - rich diet might also make one feel thirsty quite often. This is because carbs tend to consume an extra molecule of water when digested. No harm in it but one must take adequate amount of water to balance the body conditions. The measure of how much water one should take is easy to calculate. Just divide your weight in half. The number you get is the ounces of water you should consume in one day.
Processed foods come under the "bad" category as they are a little tough on the body. Medically speaking, processed foods do not actually contain a lot of fiber. So the body does not know how to process these artificially developed carbohydrates. But still, the body performs the digestion process but not with ease and therefore more of it can cause trouble. So if one is inclined on staying fit for the rest of the life, then one should have adequate knowledge on the type of carbohydrate they are consuming.
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