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Transcript: latex WHAT IS LATEX Latex rubber is used in many types of clothing. Rubber has traditionally been used in protective clothing, including gas masks and Wellington boots. Rubber is now generally being replaced in these application by plastics. Mackintoshes have traditionally been made from rubberized cloth. Latex is the stable dispersion of polymer microparticles in an aqueous medium. Latexes may be natural or synthetic. Latex as found in nature is a milky fluid found in 10% of all flowering plants . It is a complex emulsion consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins, and gums that coagulates on exposure to air. It is usually exuded after tissue injury. In most plants, latex is white, but some have yellow, orange, or scarlet latex. Since the 17th century, latex has been used as a term for the fluid substance in plants. It serves mainly as defense against The cells in which latex is found make up the laticiferous system, which can form in two very different ways. In many plants, the laticiferous system is formed from rows of cells laid down in the meristem of the stem or root. The cell walls between these cells are dissolved so that continuous tubes, called latex vessels, are formed. Since these vessels are made of many cells, they are known as articulated laticifers. This method of formation is found in the poppy family, in the rubber trees , and in the Cichorieae, a clade in the Family Asteraceae distinguished by the presence of latex in its members. It is also present in another member of the Asteraceae, the guayule plant. latex products and uses : THRE ARE MANY PRODUCTS MADE FROM LATEX HERE ARE A FEW Latex clothing GLOVES CONDOMS The latex of many species can be processed to produce many materials. Natural rubber is the most important product obtained from latex; more than 12,000 plant species yield latex containing rubber, though in the vast majority of those species the rubber is not suitable for commercial use.[ reasons why latex is is used


Transcript: LATEX ALLERGY AWARENESS March 2012: EBP Idea Proposed May 2012: Presented EBP Project to Hospital Staff July 2012: Nurse Practice Council aware of outdated policy August 14 2012: First email to Janet Wilson requesting assistance on policy revision August 29 2012: QI Meeting, New group members acquired September 6 2012: First meeting with Janet Wilson September 14 2012: Communication initiated with hospital stakeholders September 26 2012: QI Meeting September 27 2012: Proposed idea to Nurse Practice Council October 4 2012: Meeting with Janet Wilson October 24 2012: QI Meeting November 7 2012: QI Meeting November 15 2012: Presented Plan to Nurse Practice Council for Patient & Hospital Education December 2012: Latex Allergy registration pilot to begin January 2013: Anticipated date of policy approval and implementation May 2013: Policy implementation complete Amy Bass Erin Bohnert Lauren Buzzard Chester C. Farley Morgan Van Der Noord Background – Latex Allergy: LATEX ALLERGY Policy Update Education & Implementation Plan Barriers Policy Out of Date No Educational Materials in place for patients or staff Timeline PROBLEM Let's take a look at... Final Policy and Educational Material! - Met with Stakeholders: Food and Nutrition Department Resource Distribution Procurement Services Operations Manager Director of Pharmacy -Revised Policy -Presented Proposal to Nurse Practice Council GOAL/AIM Interventions Varying schedules Delays in information from stakeholders and others Durham Regional Hospital is a “latex safe” hospital. “Natural Rubber Latex Allergy is a significant medical concern that affects healthcare workers and the general population.” (Durham Regional Latex Allergy Policy) The primary goal of the revision was to make sure a policy was in place that provided guidelines to identify and protect patients, staff and visitors with a latex allergy. Final Policy and Education


Transcript: Latex Images LaTeX cannot manage pictures directly: in order to introduce graphics within documents, LaTeX just creates a box with the same size as the image you want to include and embeds the picture, without any other processing. This means you will have to take care that the images you want to include are in the right format to be included. This is not such a hard task because LaTeX supports the most common picture formats around. How do I display images in LaTeX ? eps There are many ways of displaying images in LaTeX, but the use of eps images (Encapsulated PostScript) seems to be the safest option. You need to convert your images to eps-format using a imaging program, e.g. Photoshop. It is a bad idea to save a thumbnail/preview with the image, because it will get you into trouble when you import the image in LaTeX, so select "Exclude Non-Image Data"/"No thumbnail" when you save the image as eps. height=1cm, width=3in, angle=90 and scale=0.5. epsfig he \epsfig method in the epsfig package is good and easy. width=xx Specify the preferred width of the imported image to xx. NB. Only specifying either width or height will scale the image whilst maintaining the aspect ratio. height=xx Specify the preferred height of the imported image to xx. keepaspectratio This can be set to either true or false. When true, it will scale the image according to both height and width, but will not distort the image, so that neither width nor height are exceeded. scale=xx Scales the image by the desired scale factor. e.g, 0.5 to reduce by half, or 2 to double. angle=xx This option can rotate the image by xx degrees (anti-clockwise) trim=l b r t This option will crop the imported image by l from the left, b from the bottom, r from the right, and t from the top. Where l, b, r and t are lengths. clip For the trim option to work, you must set clip=true. page=x If the image file is a pdf file with multiple pages, this parameter allows you to use a different page than the first. figures To create a figure that floats, use the figure environment. \begin{figure}[placement specifier] ... figure contents ... \end{figure} The placement specifier parameter exists as a compromise, and its purpose is to give the author a greater degree of control over where certain floats are placed. Specifier Permission h Place the float here, i.e., approximately at the same point it occurs in the source text (however, not exactly at the spot) t Position at the top of the page. b Position at the bottom of the page. p Put on a special page for floats only. ! Override internal parameters Latex uses for determining "good" float positions. H Places the float at precisely the location in the LaTeX code. Requires the float package,[1] e.g., \usepackage{float}. This is somewhat equivalent to h!. Captions It is always good practice to add a caption to any figure or table. All you need to do is use the \caption{text} command within the float environment. Because of how LaTeX deals sensibly with logical structure, it will automatically keep track of the numbering of figures, so you do not need to include this within the caption text. The location of the caption is traditionally underneath the float. However, it is up to you to therefore insert the caption command after the actual contents of the float (but still within the environment). If you place it before, then the caption will appear above the float. Try out the following example to demonstrate this effect: \documentclass[a4paper,12pt]{article} \usepackage[english]{babel} \usepackage{graphicx} \begin{document} \begin{figure}[h!] \caption{A picture of a gull.} \centering \includegraphics[width=0.5\textwidth]{gull} \end{figure} \begin{figure}[h!] \centering \reflectbox{% \includegraphics[width=0.5\textwidth]{gull}} \caption{A picture of the same gull looking the other way!} \end{figure} \begin{table}[h!] \begin{center} \begin{tabular}{| l c r |} \hline 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \\ \hline \end{tabular} \end{center} \caption{A simple table} \end{table} Notice how the tables and figures have independent counters. \end{document} Wrapping Wrapping figures in LaTex will require a lot of manual adjustment of your document. There are several packages available for the task, but none of them work perfectly. Before you make the choice of including figures with text wrapping in your document, make sure you have considered all the options. For example, you could use a layout with two columns for your documents and have no text-wrapping at all. Alignment can normally be either l for left, or r for right. Lowercase l or r forces the figure to start precisely where specified (and may cause it to run over page breaks), while capital L or R allows the figure to float. If you defined your document as twosided, the alignment can also be i for inside or o for outside, as well as I or O. The width is, of course, the width of the figure. \begin{wrapfigure}{r}{0.5\textwidth} \begin{center}

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