The Methods of Iago in Shakespeares Othello :: Othello essays

The Methods of Iago in Othello Through out the play of Othello Iago used many techniques to get what he wanted and one way or another he some how all most always got what he wanted. His techniques were that of an everyday sneaky, conniving bad guy, who always got people to trust him, except the person that was closest to him. But the main overall techniques he used were; 1)He gained the trust of people. Which was the number one technique, and from gaining their trust he could branch off form that and then he could manipulate the people he was playing into thinking that he was on their side even when he might be on the opposite side. Another thing that he could do to people was to, from gaining their trust and making then think that he was on their side he could manipulate them and make them turn on each other. The other technique that he used which didn't nearly play a role as large as the first technique but was important was he was always very careful, in being discovered and by covering his tracks. He knew how to take care of things in precarious situation. There was in my own personal opinion one more technique, and that was that he knew how to use all his options and could use his wits and cunningness. Iago's number one technique was his ability to make people trust him. He had just about everyone spun in Iago's web. Rodrigo, Othello, Cassio, Desdemona, Emilia, and etc. And he got every one of them to trust him, although he still hadn't got Emilia into his web fully. She still had suspicions about him. He could gain the trust of people as if it was nothing to him. He always when talking to that certain person said that he was on their side, making a false trust that the person believed, and therefore trusted him. Now most of the people he did this to it worked on. Such as Cassio calling him "Honest Iago" and when Cassio got in that fight with Rodrigo, he believed that Iago was the only good, honest man on his side, even though he was the one who set him up. The Methods of Iago in Shakespeare's Othello :: Othello essays The Methods of Iago in Othello Through out the play of Othello Iago used many techniques to get what he wanted and one way or another he some how all most always got what he wanted. His techniques were that of an everyday sneaky, conniving bad guy, who always got people to trust him, except the person that was closest to him. But the main overall techniques he used were; 1)He gained the trust of people. Which was the number one technique, and from gaining their trust he could branch off form that and then he could manipulate the people he was playing into thinking that he was on their side even when he might be on the opposite side. Another thing that he could do to people was to, from gaining their trust and making then think that he was on their side he could manipulate them and make them turn on each other. The other technique that he used which didn't nearly play a role as large as the first technique but was important was he was always very careful, in being discovered and by covering his tracks. He knew how to take care of things in precarious situation. There was in my own personal opinion one more technique, and that was that he knew how to use all his options and could use his wits and cunningness. Iago's number one technique was his ability to make people trust him. He had just about everyone spun in Iago's web. Rodrigo, Othello, Cassio, Desdemona, Emilia, and etc. And he got every one of them to trust him, although he still hadn't got Emilia into his web fully. She still had suspicions about him. He could gain the trust of people as if it was nothing to him. He always when talking to that certain person said that he was on their side, making a false trust that the person believed, and therefore trusted him. Now most of the people he did this to it worked on. Such as Cassio calling him "Honest Iago" and when Cassio got in that fight with Rodrigo, he believed that Iago was the only good, honest man on his side, even though he was the one who set him up.

The Purpose Of Barium Swallow Health And Social Care Essay

The most common positive or radiopaque, contrast medium used to visualise the GI system in Ba sulfate which normally merely referred as Ba merely. There is contraindication to barium sulfate. These mixtures are contraindicated and might hold possible opportunity to get away into the peritoneal pit. If big sum of Ba sulphate flight into the peritoneal pit, this can take to enteric infarcts or peritoneal inflammation. This flight may happen through a pierced syrupy or during surgery that follow the radiographic process. Pathologic indicant for Ba sups This process is done to bespeak when the patient have anemia, mechanical hurting on swallowing, reflux, Preoperative anatomical presentation, appraisal of trachea-esophageal fistulous withers and besides the appraisal of the side of perforation and besides indigestion. The diseased indicant for the Ba swallow scrutiny is achalasia, anatomic anomalousnesss, barrette ‘s gorge, carcinoma gorge, dyspigia and esophageal varices. Achalasia is a motor upset of the gorge in which vermiculation is reduced along the gorge. Next is anatomic anomalousnesss which caused by disease, such as malignant neoplastic disease of the gorge or possibly. Patients who suffer a shot frequently develop impaired get downing mechanism. Certain nutrients and contrast agents are administrated during the scrutiny for rating of the swelling forms. Dysphagia is trouble in get downing this may due to a congenital or acquired status, a at bay bolus of nutrient or redness. Narrowing and enlarged, flaccid visual aspect of the gorge may be seen during the Ba sup, depending on the cause of the dysphagia. The other indicant for Ba sup is, to bespeak carcinoma of the gorge includes one of the most common malignant of the gorge is ardeno carcinoma. The one of the symptoms of this pathology include dysphagia ( trouble in get downing ) . Last, foreign organic structure are besides can be detect by utilizing this process to the patient that ingest assortment of nutrient including a bolus of nutrient, metallic object and other stuff that will lodge the gorge. Contraindications Nonspecific, nevertheless low solar H2O soluble contrast agents are best used in probes where aspiration may happen. Preparation Patient readying.Before Patient readyingNo readying for Ba swallow scrutiny needed because gorge is empty most of the clip unless an upper GI series is to follow. If the patient is have oning anything metallic from the most to the waist must be removed. Ask the patient to alter to hospital gown. Before the fluoroscopic process is perform, a patients history should be taken and the scrutiny carefully explained to the patient.After readyingWhen the process is done, the patient can go on their regular diet as usual. Take orally administered medicines unless the physician asks non to make so. In 48 to 72 hours after the process, patient stool possibly in grey or white coloring material. Patient may see irregularity and normally been treated by eating laxative. Ask the patient to imbibe a batch of H2O for several yearss to avoid irregularity excessively. If the patient experienced any unable intestine motion or undergo important alterations after the process, inquire them to reach their d octor. Equipment readying Before making this process, the radiographer should fix some equipment such as fluoroscopy table with 90/20 jousts, rapid consecutive skiagraphy ( to border per second ) or video entering possibly required for appraisal if the laryngopharynx and upper gorge during swallow. Some extra equipment besides should necessitate such as disposable cup, little cup for sparkling agent, tissue and besides a straw possibly required for consumption of Ba when the tabular array is horizontal and besides injection disposal equipment. Contrast agent readying In this process, 250 % w/v Ba sulfate suspensions of 100 milliliters are required. Gastrografin ( should non be used for the probe of a trachea-esophageal fistulous withers or when aspiration is possible ) . An sparkling agent will be required for illustration a combination of Na hydrogen carbonate and citric acid, to bring forth C dioxide to dilate the tummy. This will besides move as dual contrast agent against the Ba to heighten the visual image of the mucous membrane. Last, LOCM for about around 350mg I/ml is besides required in this process. Procedure The patient will be place behind the roentgenoscope equipment for the x beam exposure. The process begins with the patient in the vertical or vertical place and the cup of thin Ba is placed in the patients left manus closed to the left shoulder. Then, the patient is asked to get down the liquid in the cup utilizing a straw. The patient is so inquiring to take the effervescent granules ( either dry or assorted with a little sum of H2O if dry granule is excessively hard ) or other effervescent assistance, followed by citric acid. It is of import to affect on the patient that this will bring forth gas in the tummy and may give them the make fulling that they need to burp. To avoid this, the best manner is to state them to maintain swallowing. The enteric piece of land of the next gorge, tummy and duodenum are seeable when the Ba fills and coated it. The radiotherapist observes the flow of the Ba with the roentgenoscope. Swallowing of the thin Ba is observed with the patients in assorted places. The patient will inquire to revolve true 360o at their ain topographic point. This will guarantee all the surfacing facet of the stomachic mucous membrane is ready for the appraisal of the tummy. The patient is inquiring to turn to their left ( LPO ) where a topographic point image is taken. Then, patient will turn their organic structure back to the supine ( AP ) place and bend to their right ( RPO ) . Last, the patient is return to the vertical place, turn somewhat to their left and erect ( LPO ) . Film is taken to demo the distal gorge and the fundus of the tummy. The similar place will be used when the patient get down the thick Ba. The used of the thick Ba allows better visual image of mucosal forms and any lesions within the gorge. The type of Ba used is determined by the radiotherapist. After the vertical survey has been complete, horizontal and trendeleburg places with midst and thin Ba may follow. The x beam radiation is directing by the ten beam machine ( fluoroscopy ) through the patient ‘s tissue organic structure and to a movie on the opposite side of the patient ‘s organic structure. Different organic structure tissue will absorbed different sum of radiation that penetrates the organic structure tissue. The abnormalcies, different organ, and some conditions all become seeable on the x beam movie due to difference in the composing since the incursion of the x beam beam is block by them. Radiation Protection Radiation protection is used to except clinically unhelpful scrutinies. They are many ways to cut down unserviceable radiation like minimise the fluoroscopy clip and current so that merely the exact radiation is given to the patient. Use collimation during the process to minimise the field size. Give screening to the sensitive organ of the patient when possible. Introduce QA coder to optimise staff and equipment public presentation and to do regular cheques on. Use video recording equipment alternatively of utilizing cine camera during fluoroscopy. Install modern image intensives with digital image processing possible and sensitive ( e.g. CsI ) photocathodes. Use modern image intensive and topographic point movie photofluoroscopy with 100mm camera alternatively of skiagraphy whenever appropriate. Benefit Upper GI piece of land scrutiny is really safe and noninvasive process. This scrutiny besides leads to an accurate analysis of the gorge, tummy and duodenum. This is because, Ba is non absorbed by the blood the organic structure and allergic reaction due this scrutiny is really rare. No radiation will stay in patient ‘s organic structure after the process is done n X beam has really less side consequence in the diagnostic scope. Hazards Some patient may see allergic to the flavorer that is added in the Ba. The patient must state the physician if they are allergic to chocolate, citrus fruit or certain berries before the process. There is merely little opportunity that some Ba will stay in the organic structure, taking to a obstruction of the digestive system. So, patient who have an obstructor in the GI piece of land they are non allow undergoing this scrutiny. The effectual radiation dosage for this process is 6mSv which is the same as the mean individual receives from the background radiation in two old ages. Precaution Barium is non be used if perforation is suspected. Pregnant adult females are advised to avoid this process because the radiation exposure may impact the foetus. Role of radiographer Before Arrange the assignment and state the patient about the clip, the day of the month and the topographic point where the scrutiny will be held. As the radiographer, gave the radiation protection to the patient is really of import. Give the patient a shielding to protect them from the radiation that can harm them. The room must be set up decently before the scrutiny took topographic point. Make certain the room is clean and ready to be used. All the equipment ‘s like cassette 24Ãâ€"30 centimeter, little cup and straw and contrast media ( Ba sulfate/gastrografi ) must be prepared before the scrutiny started. Make certain that fluoroscopy unit is in good status. State the patient what they should make and do certain they are all prepared. When the radiographer fix the list for the scrutiny, do certain that the diabetic patient is on the first list. This is because, they have to take their medicine on clip and if the diabetic patient are being ignored, this will do injury to them. During Patient placement Focus oning Collimation Radiologists penchant Adequate supply of cassettes Identity of exposed and unexposed cassettes Exposure factor choice Table position- patient comfort and safety Hand clasps, pes remainder, pillow, reassuarance Drip if any Drumhead

Asters Star-Shaped Microtubule Arrays

Asters are radial microtubule arrays found in animal cells. These star-shaped structures form around each pair of centrioles during mitosis. Asters help to manipulate chromosomes during cell division to ensure that each daughter cell has the appropriate complement of chromosomes. They consist of astral microtubules that are generated from cylindrical microtubules called centrioles. Centrioles are found within the  centrosome, an organelle located near the cell nucleus that forms the spindle poles. Asters and Cell Division Asters are vital to the processes of mitosis and meiosis. They are a component of the spindle apparatus, which also includes  spindle fibers, motor proteins, and chromosomes. Asters help to organize and position the spindle apparatus during cell division. They also determine the site of the cleavage furrow that splits the dividing cell in half during cytokinesis. During the cell cycle, asters form around the centriole pairs located at each cell pole. Microtubules called polar fibers  are generated from each centrosome, which lengthen and elongate the cell. Other spindle fibers attach to and move chromosomes during cell division. Asters in Mitosis Asters initially appear in prophase. They form around each centriole pair. Asters organize spindle fibers that extend from the cell poles (polar fibers) and fibers that attach to chromosomes at their kinetochores.Spindle fibers move chromosomes to the center of the cell during metaphase. Chromosomes are kept in place at the metaphase plate by the equal forces of the spindle fibers pushing on the centromeres of the chromosomes. Polar fibers extending from the poles interlock like the fingers of folded hands.Duplicated chromosomes (sister chromatids)  separate and are pulled toward opposite ends of the cell during anaphase. This separation is accomplished as spindle fibers shorten, pulling attached chromatids along with them.In telophase, spindle fibers break down and separated chromosomes are enveloped within their own nuclear envelope.The final step of cell division is  cytokinesis.  Cytokinesis involves the division of the cytoplasm, which separates the dividing cell into two new daughter cells. In animal cells, a contractile ring of microfilaments forms a cleavage furrow that pinches the cell in two. The position of the cleavage furrow is determined by the asters. How Asters Induce Cleavage Furrow Formation Asters induce cleavage furrow formation due to interactions with the cell cortex. The cell cortex is found directly beneath the plasma membrane and consists of actin filaments and associated proteins. During the course of cell division, asters growing from centrioles extend their microtublules toward one another. Microtubules from nearby asters interconnect, which helps to limit expansion and cell size. Some aster microtubules continue to extend until contact is made with the cortex. It is this contact with the cortex that induces the formation of a cleavage furrow. Asters help to position cleavage furrows so that cytoplasmic division results in two evenly divided cells. The cell cortex is responsible for producing the contractile ring that constricts the cell and pinches it into two cells. Cleavage furrow formation and cytokinesis are essential for proper development of cells, tissues, and for proper development of an organism as a whole. Improper cleavage furrow formation in cytoki nesis can produce cells with abnormal chromosome numbers, which can lead to the development of cancer cells or birth defects. Sources: Lodish, Harvey. â€Å"Microtubule Dynamics and Motor Proteins during Mitosis.† Molecular Cell Biology. 4th edition., U.S. National Library of Medicine, 1 Jan. 1970, www.ncbi.nlm.nih.gov/books/NBK21537/.Mitchison, T.J. et al. â€Å"Growth, Interaction and Positioning of Microtubule Asters in Extremely Large Vertebrate Embryo Cells.† Cytoskeleton (Hoboken, N.J.) 69.10 (2012): 738–750. PMC. www.ncbi.nlm.nih.gov/pmc/articles/PMC3690567/.