billion people are estimated to be infected with one or more of the soil-transmitted helminthes (STH) that include roundworms (Ascaris lumbricoides), whipworms (Trichuris trichuria) and hookworms (Ancylostoma duodenal and Necator americanus). The worms thrive where the soil is warm and humid and sanitation is improper. As a result, this infection disproportionately affects the poor in the tropical and sub-tropical countries especially Africa, Asia and South America. Knowing the transmission dynamics
NOTES Characteristics Flatworms are parasitic unsegmented, bilaterally symmetrical worms that lack a coelom but that do have three germ layers. Some forms are free living but many are parasitic. Flatworms have a cephalized nervous system that consists of head ganglion(brain), usually attached to longitudinal nerve cords that are interconnected across the body by transverse branches. Flatworms lack a respiratory or circulatory system, these functions take place by absorption through the body wall
It allows the worm to hid in small spaces, to fit into the opening of other animals if the worm is parasitic, and it means that all the cells are close enough to the surface for exchange of oxygen and carbon dioxide with the environment (Meinkoth 399). There are about thirty thousand species of worms in the phylum Platyhelminthes. Twenty five thousand of these worms are parasitic, which is the vast majority of the phylum. The flatworms only account for four thousand of the worms in the phylum, but
destructive computer programs are the Trojan horse, logic bombs, and the worm. “A virus is considered to be a worm with a logic bomb or Trojan horse component” (PC Upgrade). Worms are programs that copy themselves. They create images of themselves in a file or a certain part of a disk. The main reason for including a worm component in a virus is to spread the virus via floppy dick. Now everytime you format a disk or copy a disc, the worm now infects you floppy disk. The Trojan horse is a program hidden
diagnosis. Communicable diseases are caused by microscopic organisms. Physicians refer to these disease-causing organisms as pathogens. Pathogens that infect humans include a wide variety of bacteria, viruses, fungi, protozoans, and parasitic worms. Also, it has been theorized that some proteins called prions may cause infectious diseases. Bacteria are microscopic single-celled organisms at least 1 micron long. Some bacteria species are harmless to humans, many are beneficial. But
The Ebola Haemorrahagic Fever, or Ebola for short, was first recognized as a virus in 1967. The first breakout that caused the Ebola virus to be recognized was in Zaire with 318 people infected and 280 killed. There are five subtypes of the Ebola virus, but only four of them affect humans. There are the Ebola-Zaire, Ebola-Sudan, Ebola-Ivory Coast and the Ebola-Bundibugyo. The fifth one, the Ebola-Reston, only affects nonhuman primates. The Ebola-Zaire was recognized on August 26, 1976 with a 44 year
his guts into another room. After Hamlet kills Polonius he will not tell anyone where the body is. Instead he assumes his ironic matter which others take it as madness. Not where he eats, but where he is eaten. / A certain convocation of political worms a e'en at him. [Act IV, scene III, lines 20-21] If your messenger find him not there, seek him I' th' other place yourself. But, indeed, if you find him not within this month, you shall nose him as you go up the stairs into the lobby. [Act IV, scene
of dissecting to do. Now, I know in Biology everyone had to dissect the traditional earthworms and frogs, which I can handle without any problems. The problem I encountered after I entered the Biology class was not the fact that I had to dissect worms and frogs, but I had to actually dissect a fetal pig. I was not looking forward to this part of the class; I was even considering transferring into the normal, calm Biology class every one of my sane friends had done, but it was too late to turn
and communicate in real-time. Instant messaging not only provides transfer of text messages, but peer-to-peer file sharing as well. While file transfer provides the user with increased convenience, it also increases the odds of transferring viruses, worms, and other malware. This paper will discuss the major instant messenger programs: AOL IM, .NET Messenger, ICQ, and Yahoo! Messenger. In particular it will explore the threats and security risks involved in both personal and professional use of
which interferes with work and should therefore be minimized. They love to recite the fable of the grasshopper and the ant but never stop to consider that this story was written by an ant. They are the early birds: up at the crack of dawn, catching worms. Poets and pure mathematicians are ponarvians by definition. Mathematicians are sometimes forgiven by the anti-ponarvian masses because the equations they drop to one side in their foolish pursuit of elegant theorems and pleasing symmetries can
physical outcome of death on the body. This concept is a very prominent motif throughout the play. Hamlet repeatedly makes observations alluding to every man's physical decomposition. "A man may fish with the worm that have eat of the king, and eat of the fish that hath fed of the worm," a symbol in which he states, " how a king may go a progress through the guts of a beggar" (4.3. 26-31). The ghost of the elder Hamlet is described as a very genuine looking ghost. The spectators ... ..
creating a cell, tissue line or even a complete organism from a single cell. The concept of cloning was introduced in 1903, and plants were the first living organisms to be cloned. Other examples of clones are trees sending up runners, worms dividing into smaller worms, populations of genetically identical bacteria and cells dividing into tissue. The word clone actually comes from the Greek root for “ twig ” ( klon ). Human cloning is a prospect no longer left to the fantastic realm of science fiction
that time, enjoyed receiving praise and encouragement for their purpose in society. Furthermore, they felt vindicated as Kate solemnly insulted the disobedient women (Bianca and the Widow), telling them to "Come, come, you froward and unable worms!". It may also be said that this play, as well as similar plays of the Elizabethan era, assisted in contributing to the oppression of females in society for an innumerable amount of years. After the conclusion of The Taming of the Shrew
common place. Software growth has also provided newer economic rewards and possibilities for many companies. As software has become more pervasive in function and usage, security problems regarding the products has become a real issue. Viruses, worms, and hackers have become more dangerous as computers have become more connected and require more complex software. Software, unfortunately, will always be subject to flaws and bugs. Software coding is a distinctly human process and hence subject to
only one to get into your environment. Whilst many organisations subscribe to major vendor's security alerts, these are just the tip of the security iceberg and even these are often ignored. For example, the patch for the Code Red worm was available some weeks before the worm was released. [02] 1.1 What is Penetration Testing? Penetration testing - using tools and processes to scan the network environment for vulnerabilities, [03& T, J.K et al. 2002] there are many different types of vulnerability assessments
hackers that are randomly barraging Internet connected PC’s with “pings” or “port scans”, probing to find unprotected PCs. Once found, a hacker can compromise your PC with a dangerous Internet threat such as a Trojan horse, spyware or even a malicious worm (Zone Labs). Since AOL doesn’t provide any type of firewall or hacker protection while you have a cable connection with them they do suggest certain types of firewall software to buy. For single end users they suggest you use firewall software like
The Dead Fish Society It was a dark and stormy day. It the first day of class and Bletchley Boys School - a school rich in tradition, and rich in the traditional sense. I will never forget my first year at that school, for I met a teacher who changed my life forever. His name was John Flounder. He taught poetry - a class that was not exactly the most macho class, but one that was required. I sat in the classroom of Poetry 101 wondering what I was doing there. I looked around
the first evidence of acupuncture. Based on this information I believe that this ‘cruciform tattoo’ was marked on the iceman’s body in order to serve as a medical and therapeutic purpose, as it was discovered that he suffered from Acute Arthritis, Worms and Diarrhoea. Dr Frank Bahr (President of the German Academy for Acupuncture) who studies the trends and patterns of the iceman’s tattoos, believes that the cruciform, meaning cross-shape, tattoo and a master point tattoo on his back were applied
sea urchins, coral, worms, starfish, mollusks, and fish possess defense and/or feeding mechanisms which can render them harmful if handled by humans. Bristle Worms Bristle worms possess numerous razor-sharp calcium carbonate bristles (setae) which the animal may raise if threatened. These bristles penetrate the skin easily and cause intense itching and sometimes infections. Bristles should be removed with forceps and a local anesthetic and ointment may be applied. The worm may also bite (Ryan
Operating System Architecture By gaining control of computers, computer viruses, worms, trojans, software bugs, and bad people can create extraordinary damage by shutting down infrastructure, using online banking to steal money, or using robots to attack people. Our civilization is increasingly depended on computers for survival. Therefore, a fully secure operating system is essential for the society. Below is the architecture by which maximum security against viruses and other threats can be