An Overview of the Pathogens Biology in the Immune System

An Overview of the Pathogen's Biology in the Immune System The Immune system is the body’s overall defense system against harm causing invaders, that come from the outside world, that are able to inter the body one way or another. The immune system is not an organ or two that do all the work, but rather a network of parts all throughout the body that works with other bodily systems to fight off viruses, diseases, infections, and anything that the immune system knows does not belong in the body. A pathogen is any organism or virus that can cause a disease after entering the body. The first line of defense against pathogens are external barriers such as the skin. The nose has nostril hairs act like a filter for elements entering the body through the nose. The nose can also fill with mucus that can exit the body to get rid of any pathogens that might enter the nostrils. The eyes have eye lashes that can wave away pathogen’s when a person blinks. The average person blinks about 16 times a minute. That is typically enough to keep out pathogens floating in the nearby air. According to Campbell Essential Biology with Physiology 4th Edition (2012): External barriers also include chemical defenses in the form of antimicrobial secretions. Sweat, saliva, and tears contain enzymes that disrupt bacterial cell walls. Glands produce oils and acids that make the skin inhospitable to many microbes. Concentrated stomach acid kills most of the bacteria we swallow before they can enter the bloodstream. (p. 518) External barriers make up the first line of defense. When a pathogen does make it passed the barriers, it is now up to the internal immune system to fight it off. This is the second line of defense. Phagocytic cells are white blood cells that are able to consume foreign cells or pathogens, thus killing them. Another type of white blood cell that can kill off pathogens or infected cells are NK cells, or natural killer cells. These NK cells will discharge chemicals that kill infected cells. The body has another natural defense, which are defensive proteins. When a virus is successful in infecting a cell, the cell may release interferon molecules. These interferon molecules bind themselves to nearby healthy cells. The binding of interferon molecules to healthy cells prompts the healthy cell to produce antiviral proteins. Other natural defensive proteins that our immune system creates are complement proteins, which attack pathogens directly. (Simon, 2012, p. 519) The lymphatic system is a system of vessels and many lymph nodes that are crammed within white blood cells. Other lymphatic system organs include the tonsils, thymus, and the spleen. â€Å"The two main functions of the lymphatic system are to return tissue fluid to the circulatory system and to fight infection.† (Simon, 2012, p. 520) The lymphatic system works in conjunction with the circulatory system. For example, when someone gets a paper cut from a dollar bill, the dollar bill introduces bacteria into and under the skin. The first line of defense has already been penetrated. The lymphatic system will pick up on chemical signals that the skin has been torn, then send white blood cells via the arteries of the circulatory system to the paper cut site. The white blood cells will engulf the bacteria and cell debris, allowing the tissue to heal. If all the above fail to keep the body healthy, there is also a third line of defense, called adaptive defenses. â€Å"Adaptive defenses depend on white blood cells called lymphocytes that recognize and respond to specific invading pathogens.† (Simon, 2012, p. 521) These lymphocytes blood cells are triggered only after exposure to specific pathogens. The innate defenses are constantly prepared to combat a variation of infections, but lymphocytes must be primed by exposure to a foreign molecule. Any molecule that elicits a response from a lymphocyte is called an antigen. (Simon, 2012, p. 521). There are two types of lymphocytes cells, the first one is called the B-cell, and the second one is called the T-cell. One very interesting thing about this cells is how they develop. Both B-cells and T-cells form within bone marrow. The B-cells grow to maturity in the bone marrow, but the T-cells start in the bone marrow and are transported via blood to the thymus to finish growing to maturity. Paul A. Linnemeyer wrote: Macrophages are important in the regulation of immune responses. They are often referred to as scavengers or antigen-presenting cells (APC) because they pick up and ingest foreign materials and present these antigens to other cells of the immune system such as T cells and B cells. This is one of the important first steps in the initiation of an immune response. Stimulated macrophages exhibit increased levels of phagocytosis and are also secretory. (p. 1) It is very important the that the immune system functions well for the health of all human internal systems. If a pathogen that infected the digestive system entered the body and the immune system was not able to fight it off, it could cause damage to the digestive system to the point where the body could not digest food and therefore not get the nutrients needed to keep the body alive. If a pathogen that infected the respiratory system got into the body and the immune system could not fight off, it could affect the body’s ability to oxygenate its cells and cause the death of the person even though the pathogen itself may not be able to cause death. Likewise with the circulatory system. This clearly shows that a healthy immune system is a critical system to have, to keep internal systems healthy, which in turn keep the person healthy. As a result of having a low immune function, your body would have a harder time fighting off virus such as the cold and flu viruses, causing the symptoms to last longer. Infections can cause damage to the immune system, which further inhabits resistance to pathogens. HIV is a virus that causes acquired immune deficiency syndrome (AIDS) There are treatments for AIDS, but no cures. People living with AIDS tend to have to change their life style. When someone first finds out that they are HIV positive there can be a wide range of feelings including of anger, sadness, depression fear, anxiety. This can cause much stress or the carrier of the HIV virus and their families. In some cases having or treating AIDS can affect the brain. This can cause clumsiness, sudden shifts in behavior, difficulty paying attention, and forgetfulness, among other problems. (University of California, August 03, 2011) In conclusion, The immune system is one of the most important systems in the human body. The immune system can interact with other bodily systems in a variety of ways. The immune system has three primary lines of defense, the exterior barriers, the internal innate defenses, and the internal adaptive defenses. Without an immune system, humans would die very easily due to many things. But with an immune system, humans can hope to survive and thrive despite the many things that can infect them.

A report on Wireshark Essay Example | Topics and Well Written Essays - 3500 words

A report on Wireshark - Essay Example This network packet analyzer works as an appliance utilized to inspect what is happening within a communication network cable, immediately similar to a voltmeter is utilized by an electrician to look at what is going on within an electric cable (however at a advanced scale). In the past, similar applications and tools were extremely costly, based on ownership, or together. With the arrival of Wireshark, the situation has changed. Thus, Wireshark is perceived to be possibly one of the most excellent open source packet analyzers available in the marketplace at the moment (Lamping, Sharpe, & Warnicke, 2011). I have chosen this technology for my research. In this report I will assess this technology based application with respect to its overall technological working, operations, history and mainly for the Linux based services administration. WIRESHARK Wireshark technology is a network protocol analyzer system. It allows us to get as well as interactively surf the network communication tr affic operating on a computer network system. Additionally, the Wireshark has optimistic and dominant characteristic collection and is world's most well-liked application of this sort. In addition, it is compatible and works on the majority of networks and computing systems comprising OS X, Windows, UNIX and Linux. Moreover, network experts, developers, safety professionals and instructors all through the world make use of this technology. Its main characteristic is that we need to pay no cost for this since it is open source application; moreover it is released with the standards defined by the GNU (General Public License) version. Furthermore, it is designed and supported by a worldwide staff of protocol specialists, as well as it is an instance of a disruptive technology based systems. Wireshark was also recognized as Ethereal protocol (Wireshark Foundation , 2011). WIRESHARK FEATURES Wireshark takes network communication packets at the internet or transport layer of OSI model. A dditionally, the leading protocols are TCP and IP; jointly, they are known as internet protocol group or TCP/IP. As this is a packet switching network framework (a network works on data packets communication). In this scenario data will be transmitted to the right destination system formed on the basis of information created in the network packet header (Codex-M , 2011) and (Lamping, Sharpe, & Warnicke, 2011). These are extremely significant tasks to perform; particularly if someone is appointed as a network manager to inspect/care for the data and information being sent away from the communications. For instance, if the system on which we are performing our tasks deals with extremely secret information, we are able to make use of Wireshark capability to dual verify whether those network communication packets transmitted away the technology based machines are encrypted or encoded. Thus, this will validate that the encryption protocol of the system or network is in operational condit ion (Codex-M , 2011) and (Lamping, Sharpe, & Warnicke, 2011). One more instance of this situation is; if secret data and information, like that password, is not encrypted or encoded, it could be interpreted in the form of apparent text by making use of packet analysis through Wireshark. Additionally, this is equally high-quality aspect and terrible feature for the machine's clients. In addition, the high-quality aspect of this application is that, if the manager frequently checks and

How do the benedictine oblates enable the witness of Monastic Essay

How do the benedictine oblates enable the witness of Monastic Spirituality to be expressed in secular society - Essay Example The Benedictine vocation is not carried out primarily by cloistered, celibate monastics. The vast majority of Benedictines in our age are oblates, married men and women from many different Catholic Churches. The spiritual values embodied by the age-old Benedictine monastic tradition is today dispersed among people of the modern society by those chosen few — whose numbers nonetheless are on sharp rise — who have found their calling in the way shown by St. Benedict barely a few centuries after Jesus Christ. Benedictine oblates today represent a promising movement of bringing forth lofty spiritual principles out into the open and amalgamating them into our everyday humdrum existence. This they do by virtue of their thought, word and deed being permeated by the spirit of Christ. : Faith is like love, a very personal and intimate matter. It has a profound beauty and sublimity that cannot be so easily understood by cool rationality. The values and principles that Benedictine monks and oblates cherish and uphold can be best understood from the point of view of deep empathy. This point can be illustrated by a simple example. Some anthropologists study primitive tribes as if they were strange creatures steeped in a culture of ignorance. More mature anthropologists, on the other hand, often try to identify with the subjects of their study, by mingling and living with them, by becoming almost like one of them, by trying to look at the world from their eyes. Benedictine culture and tradition too ought to be ideally studied in the latter manner. 1. Oblates in the Context of Modern Society The Benedictine vocation is not carried out primarily by cloistered, celibate monastics. The vast majority of Benedictines in our age are oblates, married men and women from many different Catholic Churches. Benedictine oblates are lay persons affiliated with a Benedictine abbey or monastery who strive to direct their lives, as circumstances permit, according to the spirit and Rule of St. Benedict. (Our Sunday Visitor's Catholic Almanac 2005, p.490). While yet living "in the world," as ordinary members of society, they join themselves spiritually to a particular Benedictine community and seek to observe in the particular circumstances of their lives the important aspects of the Rule of St. Benedict. In the recent years, there has been a renewed interest among laymen and laywomen in associating themselves with religious communities as oblates or members of secular 'third orders'. Oblates do not take monastic vows but choose to live in close connection to a monastery, while integrating the spirit of the monastic rule into their daily lives. Groups of such "secular oblates" have in fact multiplied today in various forms. The term 'third order' generally has been a category for laity who seek to follow a way of life in the world but under the inspiration and spiritual guidance of a canonically approved religious institute.(Seasoltz, 2003, p.248). These groups often are the lay counterpart of particular religious orders. The First Order of the community was its professed male members, the Second Order, the professed female members, and the Third Order, the nonprofessed male and female affiliates (Wynne, 1988, p.164). People of these third orders seek to deepen their Christian life an d apostolic commitment in association with and according to the spirit of various religious institutes. Considerable numbers of people, most of them lay people with family and work commitments and with many involvements which keep them busy, are today turning to the monastic tradition. The main reason for this is perhaps that in monastic approach to life, in its essence though not in the outer form, they are finding practical help in making the ordinary and the everyday life a way to a higher reality. Monastic tradition began as a lay movement, and remained so until its intertwining with priesthood much later on

Cuban Missile Crisis :: essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  On August 6, 1945, the world changed forever. The United States had sent a B-29 bomber plane named â€Å"Enola Gay† to fly over the industrial city of Hiroshima, Japan and drop the first atomic bomb ever – â€Å"Little Boy† . The world had never experienced anything like it. One hundred thousand died almost instantly -- most of them were civilians. Three days later, in Nagasaki, another bomb -- â€Å"Fat Man† – was dropped. This time roughly forty thousand died. The people of the world were glad to see that the bombs ended most destructive war ever, but over the course of the forty years the world feared a nuclear battle that could wipe out all humankind off of the face of the Earth. The images that were coming from the aftermath of the bomb in Hiroshima and Nagasaki affected almost every person in the world in all aspects. The image of the mushroom-shaped cloud and the desolate city would remain in every person’s mind as an image of destruction and as a warning of the danger of a nuclear war.   Ã‚  Ã‚  Ã‚  Ã‚  The Manhattan Project was the code name for an effort to create an atomic bomb during World War II. It was named for the Manhattan Engineer District of the U.S. Army Corps of Engineers because most of the early research was done in New York City . Refugee physicists sparked the project soon after German scientists had discovered nuclear fission in 1938. Many American scientists feared that Hitler and the Germans would produce a nuclear bomb; consequently, they contacted Albert Einstein to write a letter to United States President Franklin Delano Roosevelt to help the production of the first nuclear bomb. Roosevelt agreed to assist the scientists and they began the Manhattan Project. The development took place at laboratory at Los Alamos, New Mexico, located on an isolated mesa. The project was to be kept classified under all circumstances. The scientists working at the plant could not even tell their wives about their work, unless they worked there themselves. All the mail in the town was censored; everybody was restricted to a two hundred mile radius and residents were forbidden to tell their friends where they lived. No one in the community had a name; rather everyone was either a â€Å"sir† or â€Å"mister†. The most serious threat to the security of the project was the hiring of Klaus Fuchs who was found guilty of obtaining top-secret documents and sending them to the Soviet Union.

How sharing of findings affects practice Essay

Serious case reviews and inquiries are required to identify how, when and why a child has died from abuse or neglect. These reviews identify the way in which organisations and local professionals have worked both together and separately to safeguard, protect and promote the welfare of children and young people. These reviews also help to identify how these organisations could have worked better to ensure that this doesn’t happen again to another child. Victoria Climbie was born 2nd November 1991. She was brought to the UK in 1999 by her aunty, who the authorities thought was her mother, when she was 8 years old. She suffered 128 injuries from being beaten with sharp and blunt instruments and after Victoria’s post mortem was carried out, her cause of death was found to be hypothermia brought on by malnourishment and living in a damp environment with restricted movement. Victoria’s Aunty was arrested at the hospital on 25th February 2000 on suspicion of neglect. Victoria had been a part of multi agency child protection plan and had visited and been visited by multiple hospitals, social services teams, police and churches before her death on 25th February 2000 at just 8 years and 3 months old. All agencies involved were too willing to listen to her Aunties stories of incontinence, possession and behavioural problems. The social services teams didn’t even follow up a disclosure of sexual abuse towards Victoria with an investigation after her Aunty retracted the allegations she had made towards her partner. All agencies seemed very trusting of Victoria’s Aunty who was reinforced by her presentation and behaviour. She co-operated with meetings and visits from professionals, initiated communication with professionals and even responded positively to offers of help. After Victoria’s death all agencies that were a part of her short life within the UK were looked into and were found to be lacking in organisation, thoroughness and insufficiently focused on the child’s welfare. The result  of the Victoria Climbie case meant a review on the child protection plan. Practitioners have to be extra vigilant when working with children and have to ensure they follow correct procedures with regards to safeguarding and child protection. If a child discloses information to a member of staff they must record all information including the date and time that the child disclosed. This information will then be passed onto management who will contact and inform the correct agencies. 2.2 – Identify the policies and procedures required in the work setting for safeguarding children and young people. The policies and procedures needed within the setting for safeguarding children and young people are: Safeguarding and Child Protection This policy and procedure ensures the protection of the children within the setting with regards to disclosure, abuse and neglect. Practitioners must follow the correct procedure with regards to disclosures from children or incidents witnessed. All practitioners have a DBS check before being able to work closely with the children to ensure they are suitable for the position. Health, Safety and Risk Assessment This policy ensures that all health and safety matters are addressed within the setting so that the children are entering a safe and secure environment. Daily risk assessments are carried out to ensure that all hazards and risks are minimized or removed to ensure the complete safety of the children and young people within the setting and its outdoor environment. First Aid This policy and procedure ensures that practitioners within the setting are sufficiently trained to administer first aid to children, young people and other staff members. Following the correct procedure they must ensure that a first aid form is filled out including all relevant information with regards  to the child. Data Protection This policy and procedure ensures that all children’s and young people’s information is sufficiently stored within the setting. It also states that practitioners must not discuss nursery business outside of the setting.

Go To Hell In Italian - Va AllInferno

While the sentiment isnt simpatico, sometimes youre forced to proclaim it: Go to Hell! It could be in response to a perceived insult, a misdeed, or an instance of road rage on the autostrada. Whatever the reason, if you find yourself in such a situation, there are a number of nuanced ways, ranging from mild to blasphemous and ironic to literal to express your wrath in Italian. Your Own Personal Hell One thing to keep in mind when considering the insult Go to Hell! are the cultural differences between the United States  and Italy. American English speakers, for instance, should take notice that mentioning Hell is not blasphemous in Italy, where â€Å"Va allinferno! - Go to Hell!† is a milder phrase than Vaffanculo! (Mildly translated as â€Å"Up yours!†). If you want to learn more parolacce, or bad words, read this article: 8 Swear Words to Add Sass to Your Vocabulary in Italian.   TIP: The word parolaccia is formed from parola - word and the suffix -accio, which is used to talk about things that are considered bad or unfavorable. Click here to learn more suffixes like this.   As a native Italian points out with regard to similar terms, Gesà ¹! (Jesus!) is more an elderly ladys pious interjection than a blasphemous one. Cristo!, on the other hand, is not exactly blasphemous, but some people might resent the use of the word as an interjection. Hellish Vocabulary Whenever using any of these Italian expletives—whether mild or harsh—be aware that context is critical. While muttering Va a quel Paese! to your friends wont even lift an eyebrow, some of the more creative turns of phrase listed below should only be used if youre absolutely certain that those within earshot wont be offended. Here are some ways, then, to tell someone to Go to Hell! in Italian: Mild expressions: Va a quel PaeseVa’ a fare un giroVa’... Va a ranare (this is dialect)Va al diavoloVa allinfernoVa in mona (regional Venetian)Va un po...Vaffambagno Less mild expression: Vaffantasca Harsh expressions: Va a farti fottereVa a dar via l culo (regional Northern Italian and is really harsh)Vaffanculo Road Sign For Literary Fame So the next time someone provokes you, youll have a number of ways to express how upset you are. And if for some reason, someone tells you to Go to Hell! in Italian, consider it a directive for success. After all, Dante Alighieri figuratively went to Hell in order to write LInferno, the first volume of his three-part epic La Divina Commedia,  and he became famous for it.

Digital Model Of 3d Printing - 1752 Words

Table of Contents I History Background 2 II technology detail 3 Contour Crafting (CC) 3 -Concept 3 Building Procedure 3 Automated Reinforcement 4 Automated Plumbing 5 Electrical Network Installation 6 Material 7 III Compare with Conventional House Construction. 8 Conventional House Construction 8 Contour Crafting Vs. Conventional 8 IV Application 9 NASA project 9 Winsun 10 V Future Outlook 10 VI Conclusion 10 I History Background 3D printing technology was start in the mid-1990s, this technology construct the real object from a digital model from computer, layer by layer using certain material in powered state. In the past, this technology is applied in mold manufacturing, and nowadays, it is being used in direct manufacturing. With the improvement of this technology, more and more items can be done through 3D printing. However, the potential of the 3D printing is far more than DIY small household items. In March of 2013, a Chinese firm has claimed to have done 3d printing of ten houses within 24 hours. Two years later, in January of 2015, they has further demonstrate its technology with a five story apartment building, compete with decorative element both inside and outside. In fact, this technology is now overturn the traditional construction industry. In the building construction, building layer by layer has been practiced for several thousand years. Bricking is a common method of building construction, which is actually lay construction. Therefore, it makeShow MoreRelatedWhat Is The Accuracy Of Two 3D Printing Techniques Commonly Used?1167 Words   |  5 PagesDISCUSSION The accuracy of two 3D printing techniques commonly used in orthodontics was assessed in this study. A unique aspect of this research was that 3D printed models were produced from digital impressions acquired directly from the oral environment, and then compared to stone models. The importance of this comparison was the ability to evaluate the entire digital workflow from directly acquiring a digital impression from the oral environment to producing a 3D printed model of it. To our knowledgeRead MoreThree Dimensional Printing Is An Additive Manufacturing Process950 Words   |  4 PagesTHREE DIMENSIONAL PRINTING TECHNOLOGY INTRODUCTION Three Dimensional Printing or 3D Printing is an additive manufacturing process of creating a wide variety of products covering diverse sectors of manufacturing. It is called an additive process because of the fact that material is added in this process of manufacturing instead of machining it out from a base substance. The basic principle behind the working of a 3D Printer is to convert a digital file into a three-dimensional model by adding materialRead MoreMaking A Design With Registration Marks1102 Words   |  5 Pagesour lives whether that is digital or not, but we don’t know how the process behind it. This paper is about three different printing methods. Screen printing, Digital printing and 3D printing. It will go deeper into how each process works and how we get the printed product. First, Screen-printing is used to print on materials such as paper, fabric glass and even hard surfaces such as metal most people use screen printing for signs labels and decals such as stamps (Printing Process Descriptions: EnvironmentRead MorePrinter Models Essay714 Words   |  3 PagesFive 3D Printer Models That Will Hype You Up It seems like only yesterday that the mere thought of 3D printing came across as an absolute absurdity. Creating a physical, real life object directly from a digital design? Impossible! Fortunately for the people of the new age, it isn’t so much of an impossibility anymore. From being accessible only to a select group of people and businesses in the market, to becoming a worldwide sensation that nearly anyone and everyone covets, 3D printing has transcendedRead MoreThree Dimensional Printing Essay750 Words   |  3 PagesThree-dimensional Printing Processes Larry Hornbeck created digital light processing in 1987. Hornbeck invented the digital micro mirror device, first used for cinema projectors. This micro mirror device can be used for digital light processing, which uses arc lamps to harden a liquid plastic resin. Digital light processing is a low cost method and reduces waste. Selective laser melting uses a high-power laser beam to fuse and melt metallic powders. The laser fully melts the powder into a solid 3D object.Read MoreAmazon and 3d Printing1351 Words   |  6 Pages3d printing is no longer a theory or a concept. It has been available to industrial manufactures for the last few year but now as technology is advancing at its usual frightening pace the first home consumer printers are becoming available and like the original printers they are rapidly moving on from their slow, expensive and cumbersome beginnings . The Makerbot replicator 2 is an example of a 3d printer available to the consumer retailing for approx $2000. 3d printing relies on additive manufacturingRead MoreDesigning A 3d Printing Business908 Words   |  4 Pagesbusiness that I choose to discuss is a 3D printing business which offers services to the medical sector, looking at the background information I would be discussing the History of 3D Printing, Medical Printing history , Introduction of 3D printing industry 3D printing, started in the late 80s by a company called Rapid Prototyping Technologies, although there was a delay in the patent application of the original conceiver Dr. Kodama. However the roots of 3D printing can be traced back to 1986 when theRead More3d Printing And Its Effect On The Entire Supply Chain Forever1303 Words   |  6 PagesIntroduction 3D printing is a new technology that could potentially change the entire supply chain forever. It is rapidly evolving and gaining a place in many companies. According to a survey performed by the Business Insider as seen in figure 1, 60 percent of firms are either actively using or are evaluating the potential of using 3D printing (Wile). There are an infinite number of uses for 3D printing that come along with advantages and disadvantages. The 3D Printing Process 3D printing, also knownRead More3d Printing Or Additive Manufacturing1630 Words   |  7 Pages 3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the entire object is created. Each of these layers can be seen as a thinly sliced horizontal cross- section of the eventual object. It all starts with making a virtual design of the object you want toRead More3d Printing And Manufacturing Development1030 Words   |  5 Pages3D Printing and Manufacturing Introduction: In the history of known humanity, starting from the Stone Age,Technological progress has impacted humans more than anything such as changing from an animal cart to Cab less Motor Vehicles, Hand wheel to Nuclear power plant innovation in virtue to generate electricity, To advanced heating and cooling methodology from conventional wood fire or Stone tools to advance manufacturing tools. There are many more examples of technological evidence in the reference