Causes of Asthma

Causes of Asthma Asthma is a chronic lung disease that inflames and narrows the airways. It can be both short term and long term. Asthma causes recurring periods of wheezing (a whistling sound when you breathe), chest tightness, shortness of breath, andcoughing. The coughing often occurs at night or early in the morning. Asthma affects people of all ages, but it most often starts during childhood. In the United States, more than 25 million people are known to have asthma. About 7million of these people are children. The airways are tubes that carry air into and out of your lungs. People who have asthma have inflamed airways. The inflammation makes the airways swollen and very sensitive, the airways tend to react strongly to certain inhaled substance. When the airways react, the muscles around them tighten. This narrows the airways, causing less air to flow into the lungs. The swelling also can worsen, making the airways even narrower. Cells in the airways might make more mucus than usual. Mucus is a sticky, thick liquid that can further narrow the airways. This chain reaction can result in asthma symptoms. Symptoms can happen each time the airways are inflamed (national institute of health). Understanding and Explaining Asthma The aetiology of asthma has been explained in terms of heredity, incitement, and induction. Incitement is the immediate broncho-constriction noted among asthmatics and others to nonspecific stimuli. Induction is the enhancement of the response to inciters that can follow exposure to certain stimuli, mostly inflammatory agents such as allergens, infections and other irritants, including industrial contaminants such as`4he plicatic acid from Western Red Cedar wood. There is a good reason to believe in a hereditary component to asthma, different components of the condition having possibly independent genetic origins. The best documented genetic component is the familial allergy to ragweed6, and Sibbald et al.7 have argued for independent hereditary components that influence atopy and bronchial responsiveness. However, migrant studies strongly suggest the major determinant to be environmental and not genetic. Both Tokeluans4 and Xhosas3 clearly have the genetic potential for developing a sthma, but this is expressed only on migrating to an economically more developed area (Journal of the Royal Society of Medicine Volume 80 June 1987 367). Isolated examples, such as the increase in asthmatics attending emergency rooms following the eruption of the Mount Helens volcano8, may be explained in terms of incitement, but there are major objections to using this mechanism as a general explanation for differences in the prevalence of asthma. The wide variety of substances capable of inducing broncho constriction in asthmatic subjects can be divided into endogenous mediators such as histamine, prostaglandins or leukotrienes, and exogenous agents such as sulphur dioxide, volcanic ash or cold dry air. For the epidemiologist attempting to explain the prevalence of asthma, the endogenous mediators are unhelpful. The discovery of a mediator whose presence distinguishes asthmatic from non asthmatic populations would be useful, but in turn would raise the question of why one population had more of the mediator than the other population. For the reason discussed above, a genetically controlled explanation can be discounted, which leaves an environmental factor to increase the amount of mediator in the asthmatic population. This is essentially the same as the initial question of what environmental factor might account for differences in the prevalence of asthma. Exogenous inciters, being environmental in origin, theoretically offer a better hope of advancing the issue further, but, in the event, are no more helpful. Differences in the prevalence of asthma are not accounted for simply by differences in the incidence of clinical symptoms provoked by environmental triggers. They also reflect differences in the under-lying prevalence of bronchial hyper-responsiveness. In van Niekerks study3, it was the response to the exercise challenge that differed between urban and rural areas. This cannot be explained simply in terms of the prevalence of inciters in the environment. Induction provides a more promising general theory with which to explain differences in prevalence. There is plenty of evidence that induction does occur, particularly in an industrial context and this has been used extensively as a general model for the aetiology of asthma. It does not, however, explain the distribution of asthma in developing countries. Agents that have been sh own to induce asthma are abundant in the Third World ( Journal of the Royal Society of Medicine Volume 80 June 1987 367). Fatality of Asthma Acute respiratory infections are probably the single most important cause of death among children. It is thus appealing to consider the hypothesis that fatal and near fatal attacks of asthma may have common causes, and that studying non-fatal asthma attacks (as well as being of value in itself) may provide useful information on the factors associated with fatal asthma attacks. Campbell investigated the levels of agreement between information obtained directly from cases of near fatal asthma attacks with those obtained independently from close acquaintances, almost all of whom were family members living in the same household. They found very high levels of agreement for recognized markers of chronic asthma severity (such as a hospital admission in the last 12 months or an intensive care unit admission), utilization of medical services, the use of prescribed agonists (although there was less agreement for other asthma medications such as oral xanthines), and psychiatric features. These findings are generally encouraging in that they indicate that information relating to these risk factors and clinical characteristics obtained from close acquaintances has reasonable reliability in studies of near fatal asthma attacks and therefore such information may also be reliable for persons dying from asthma. In contrast, information on features of the long term asthma history such as sleep disturbance and the frequency of, or trends in, symptoms in previous years was not reliable. The reliability of the reported circumstances associated with a near fatal episode was not examined. Thus, while it would seem appropriate to continue to examine deaths from asthma using clinical information that has been recorded before the fatal attack, the findings of Campbell suggests that interviews with acquaintances may provide additional useful data. Richards have compared the demographic characteristics of patients suffering fatal asthma attacks throughout New Zealand during 1980-6 with t hose experiencing severe life threatening asthma attacks in the Auckland region during 1981-7. The information avail-able for the study was limited, but the findings once again confirm the importance of a previous life threatening attack of asthma as a marker of subsequent risk of death from asthma. About one quarter of the subjects who died in Auckland during the period of the study had a previous admission to an intensive care unit with asthma. This suggests that asthmatic subjects who experience a life threatening attack are a group in whom intensive medical treatment and follow up should be arranged. These considerations indicate that, although there are some practical advantages in studying near fatal asthma attacks, there may well be greater problems of interpretation of the findings than in studies of fatal asthma. Nevertheless, when interpreted cautiously, studies of near fatal attacks may provide a useful complement to studies of fatal attacks in monitoring the time trends in severe asthma, and in identifying the causes of those changes which occur (Thorax 1993;48:1093-1094).

Inventory system introduction Essay

Chapter 1 INTRODUCTION Nowadays, computer-based system is commonly found in the business world. This is because of the benefits it gives in the respective companies. In addition, an upgraded system in this point of time is a big advantage due to the great deal of the competition in our economy. Technically, logical and analytical skills will certainly improve after this study. Hopefully, this study will also be character-building and still upon the importance of teamwork and maintaining harmony within the group which will be quite handy in the corporate world. One of the disadvantages of not having a computerized Inventory System is that, there a chance of inaccurate data record in a manual inputting of inventory records. Also there is a delay in updating records due to manual process. Miguel’s Home Merchandise is a growing company with an increasing size of customers. And so, today the company needed a computerized based program that can handle such difficulties. 1.1 Statement of the Problem 1.1.1 General Problem How to develop an Inventory System with Point of Sale for Miguel’s Home Merchandise that will improve the current process of inventory, lessen the time consumed in categorizing, pricing, monitoring of the items and customer’s transaction? 1.1.2 Specific Problems 1.1.2.1 How to develop a module that will provide an inventory and transaction system for the company? Currently, the company is still using calculator to compute the total amount of items purchased by the customers. For this reason, there are some instances where error occurred using this manual way of computation. 1.1.2.2 How to develop a module that will monitor the reorder and critical level of company’s items? Since the company is conducting an inventory every week by manual record, there are some instances where not aware on what are those items are in reorder or critical level. 1.1.2.3 How to develop a module that will generate fast and accurate reports? Currently the company is still using manual record on each report, there are some instances where the company is too busy to monitor sales reports and it consumes most of their time. 1.2 Current State of the Technology Miguel’s Home Merchandise was using a manual method of listing their items. They call their suppliers to order some items or they went to their suppliers to buy items and upon reaching the store they count the items one by one and write it down in a record book. And when the time comes to put it into display they just attached a sticker for the price in every item. And if there is a sudden change in price of the items, they just erase the records in the record book and update the price. Staffs like Manuel Ciyab create manually reports, check their inventory weekly and report it to the owner, Mrs. Miguel. The existing customer transaction is just a typical buying; the customer arrived, walk through the store and look in the shelves for the item they want and the staff will assist the customer and walk with her/him to look for the items. And eventually after paying the items, the staff uses a calculator to compute the total price and issue a receipt by writing it in a formatted paper, filling up the date, total price, change etc. At the end of the day the staff will list all items and compute for their sales. Again, using a calculator and writing it in a record book. The current system was done manually, their encounter some problems that occur in the process. Considering the problem cited, the proponents intended to develop an inventory system with point of sale that would help the company for the fast monitoring of items, accurate reports and fast customer transaction. 1.3 Objectives 1.3.1 General Objective To develop an Inventory System with Point of Sale for Miguel’s Home Merchandise that will improve the current process of inventory, lessen the time consumed in categorizing, pricing, monitoring of the items and customer’s transaction. . 1.3.2 Specific Objectives The proposed system aims to achieve the following objectives: 1.3.2.1 To develop a module that will provide an inventory and transaction system for the company.  The proposed system will allow the user to input items data electronically for more secure and faster data retrieval and count all items accurately while the customers will just go to the cashier and because of the search feature of the computerized system it will be easy to find if the item is available. And the staff will compute the total amount using the proposed system and the issuing of receipt is already printed. 1.3.2.2 To develop a module that will monitor the reorder and critical level of company’s items. The proposed system has a module on which items are monitored if there are in reorder or critical level, and the system will automatically notify the user if there are any items that reached its critical level using color coding. 1.3.2.3 To develop a module that will generate fast and accurate reports. For computing reports such as daily sales report the system provide a module that will generate necessary report to determine product master list and sales report. The time will lessen since all the computing is done in the system.

The Do This, Get That Guide On Toefl Integrated Essay Samples Score Samples

The Do This, Get That Guide On Toefl Integrated Essay Samples Score Samples Though the price of living is higher in the city than it's in a rural area, people who are employed in the city generally have much higher salaries. You have the chance to go to a foreign country for two weeks. Possessing a group of individuals attack a project provides several benefits. You should also think about seeking professional assistance. The Do's and Don'ts of Toefl Integrated Essay Samples Score Samples On the flip side, the reading claims that public isn't reading challenging literature. The essay has to be typed, so test-takers ought to be familiarized with a computer keyboard. Many students have trouble thinking of particular examples, but it's a valuable part of great writing. Writing about a different topic is a simple approach to receive a very low score. If you aren't certain when you'll be applying and just need to study and find the TOEFL from the way first, then the lifetime program might be the proper option because you are going to have unlimited access to it. If you are able to use the provided information in an intelligent way, you're going to be in a position to create your efficient study program. You are able to also practice brainstorming or planning reasons even if it's the case that you don't compose a comprehensive reaction. In most instances, there'll be three main supporting ideas. Life After Toefl Integrated Essay Samples Score Samples TOEFL raters study your ability to create various kinds of sentences. Study the sample essay, then examine the teacher's comments within the next section. Your response ought to be 150-225 words. It should be around 150-225 words. The responses will be transmitted in and evaluated by four distinct folks. Generally, an effective response is going to be 150 to 225 words. If your aim is to pass the GED, then you have to learn about test-taking strategies. It's possible to read the facts of the guaranteeterms here. In instances of sexual abuse. Up in Arms About Toefl Integrated Essay Samples Score Samples? You will get a question that everyone can answer. So the best method to secure better at it is to practice a good deal. You do not have to prepare anything before you begin the program. Our course contains only the very best and all you need to obtain a fantastic TOEFL score from beginning to finish. The Hidden Truth About Toefl Integrated Essay Samples Score Samples Humans may also attempt to increase their arms in the air, so bears can observe they are larger animals. Second, the author from the passage describes few ind icators a bear gives before it's ready to attack. Food is now simpler to prepare. Nowadays, it has become easier to prepare. Being aware of what graders are interested in and reviewing TOEFL Writing samples can go a very long way towards aiding you to get a high score on this section. Completing practice essays and getting more acquainted with the sorts of questions you might be asked is an important portion of preparing for TOEFL Writing. A great prep book can be absolutely the most important study tool you use, and we've got information on all the very best TOEFL prep books you should think about. This list of questions appears right on the TOEFL practice website and can show up on your true TOEFL writing test. DON'T become frustrated if you're less great at English on test day as you wish to be. My goal today is to offer you all of the info you'll want to be successful with the TOEFL Independent Writing section. Fortunately, you don't will need to come in the TOEFL with a prior comprehension of the topic at hand so as to find the most suitable answer. Unfortunately you cannot predict which questions are the additional questions and you ought to do your best on all them! Below are a couple of the best. Honest, dedicated practice is a whole lot more useful and potent. Speaking about your opinions will allow it to be much easier to write about them. Nobody is supposed to take a person's life since they didn't give life. Thus, it's extremely important to look after the phone carefully.

Prepping Your Kid for a Test With No Study Guide

Its the moment you dread: Your child comes home from school on a Tuesday and tells you that there are a test three days from now over chapter seven. But, since she lost the review guide (for the third time this year), the teacher is making her figure out the content to study without it. You dont want to send her off to her room to study blindly from the textbook; Shell fail! But, you also dont want to do all the work for her. Theres a method that will get your child prepped for that chapter test despite the little misplacement habit shes grown fond of, and even better, she may learn more than she did had she actually used the review guide. Ensure She Learns The Chapter Content Before you study with your kid for the test, youll need to know that shes learned the content of the chapter. Sometimes, kids do not pay attention during class because they know the teacher will be passing out a review guide before the test. Teachers, however, want your kid to actually learn something; they typically put the bare bones of the test content on the review sheets offering a glimpse of the facts shell need to know. Not every test question will be on there! So, youll need to make sure your child has actually grasped the ins and outs of the chapter if she wants to ace the test. An effective way to do it is with a reading and study strategy like SQ3R. The SQ3R Strategy Chances are good that youve heard of the SQ3R Strategy. The method was introduced by Francis Pleasant Robinson in his 1961 book, Effective Study, and remains popular because it enhances reading comprehension and study skills. Kids in third or fourth grade through adults in college can use the strategy solo to grasp and retain complex material from a textbook. Kids younger than that can use the strategy with an adult guiding them through the process. SQ3R utilizes pre-, during and post-reading strategies, and since it builds metacognition, your childs ability to monitor her own learning, its a highly effective tool for every subject in every grade shell encounter. If you happen to be unfamiliar with the method, SQ3R is an acronym that stands for these five active steps your child will take while reading a chapter: Survey, Question, Read, Recite and Review. Survey Your child will browse through the chapter, reading titles, bold-faced words, introduction paragraphs, vocabulary words, subheadings, pictures, and graphics to grasp, in general, the content of the chapter. Question Your child will turn each one of the chapter subheadings into a question on a sheet of paper. When she reads, The Arctic Tundra, shell write, What is the Arctic Tundra?, leaving space underneath for an answer. Read Your child will read the chapter to answer the questions shes just created. She should write her answers in her own words in the space provided. Recite Your child will cover her answers and attempt to answer the questions without referring to the text or her notes. Review Your child will reread portions of the chapter about which she isnt clear. Here, she can also read the questions at the end of the chapter in order to test her knowledge of the content. In order for the SQ3R method to be effective, youll need to teach it to your child. So the first time the review guide goes missing, sit down and go through the process, surveying the chapter with her, helping her form questions, etc. Model it before she dives in so she knows what to do. Ensure She Retains The Chapter Content So, after applying the reading strategy, youre fairly confident that she understands what shes read, and can answer the questions youve created together. She has a solid knowledge base, but there are still three days before the test! Wont she forget whats shes learned? Its a great idea to have her learn the answers to the questions prior to the test, but in reality, drilling will force those specific questions, but nothing else, into your kids head. Besides, what if the teacher asks different questions than the ones youve learned together? Your child will learn more in the long run by getting a learning combo meal with knowledge as the main course and some higher-order thinking as a tasty side. Venn Diagrams Venn diagrams are perfect tools for kids in that they allow your child to process information and analyze it quickly and easily. If youre not aware of the term, a Venn diagram is a figure made of two interlocking circles. Comparisons are made in the space where the circles overlap; contrasts are defined in the space where the circles do not. A couple of days prior to the exam, hand your child a Venn Diagram and write one of the topics from the chapter on top of the left circle, and a correlative topic from your childs life on the other. For instance, if the chapter test is about biomes, write Tundra above one of the circles and the biome in which you live above the other. Or, if shes learning about Life on Plymouth Plantation, she could compare and contrast that with Life in the Smith Household. With this diagram, shes attaching new ideas to parts of her life with which shes already familiar, which helps her build meaning. A cold page filled with facts doesnt seem real, but when compared to something she knows, the new data suddenly crystallizes into something tangible. So, when she steps outside into the brilliant sunshine of a warm day, she may consider how cold a person might feel in the Arctic Tundra. Or the next time she uses a microwave to make popcorn, she may think about the difficulty of food acquisition on the Plymouth Plantation. Vocabulary Writing Prompts Another creative way to help your child gain a complete understanding of the textbook chapter for that big test coming up is with synthesis. This higher-order thinking skill can certainly help cement information from the textbook directly into your childs brain better than straight memorization can. An enjoyable, effortless way to have your child synthesize info is with a snazzy writing prompt. Heres how to set it up: As your child surveyed the chapter, she shouldve noticed the bold-faced vocabulary words scattered throughout. Lets say the chapter was about the Plains Native Americans, and she found vocabulary words such as expedition, ceremony, raid, maize, and shaman. Instead of having her memorize a definition shell have trouble remembering, instruct her to use the vocabulary words appropriately in a prompt like one of these: Using at least five of the vocabulary words from the chapter, compose a letter to the shaman from a warrior who is away on a raid.Youre visiting a Plains Native American tribe. Write a 1-2 paragraph description of the things you see, smell and hear using at least five of the vocabulary words from the chapter.You are a Plains Native American child. Using at least five of the vocabulary words from the chapter, convince an outsider that your tribe is the best place to grow up. By giving her a situation that may not have been described in the book, like a childs perspective, youre allowing your child to mesh knowledge she already has in her head with knowledge from the chapter shes just learned. This fusion creates a map for her to get to the new information on test day just by remembering her story. Brilliant! All is not lost when your child comes home sobbing because she mislaid her review guide for the umpteenth time. Sure, she needs to get an organizational system in place to help her keep track of her stuff, but in the meantime, you have a system in place to help her keep track of her test grades. Using the SQ3R Strategy to learn the test content and tools like Venn diagrams and vocabulary stories to reinforce it ensures that your child will ace her chapter test and totally redeem herself on exam day.