Ray Bradburys The Martian Chronicles Essay -- Ray Bradbury Martian Ch

Ray Bradbury's The Martian Chronicles   Ã‚  Ã‚  Ã‚  Ã‚  If the Martian Chronicles had been written in the 1999’s instead of fifty years ago, many issues and problems would change. Ray Bradbury wrote his book in 1946. In it he wrote about problems such as censorship, man’s cruelty to man, and loneliness. Each issue shows up in one or two of his chronicles. All of his issues affect every one of his characters in many different ways.   Ã‚  Ã‚  Ã‚  Ã‚  Censorship is a main problem or issue today, and in the book it shows up in one of his chronicles, â€Å"Usher II†. In this chronicle, a man builds a house of Usher. One man points (he was from a group that was against all forms of imagination) out, â€Å"No books, no houses, nothing to be produced which in any way suggests ghosts, vampires, fairies, or any creature of imagination.† Yet in this house he saw all of these things and more.   Ã‚  Ã‚  Ã‚  Ã‚  The chronicle also brings up the issue of censoring certain books by authors such as Edgar Allen Poe. The house that is built is based on a house that is in one of Poe’s books. The unimaginative man is ignorant to the facts of Edgar A. P.’s books and does not even recognize the kind of death he was about to face that was directly copied out of a book. If it were to happen today and now, the only books that would be allowed would be schoolbooks, and even those books could not contain theories.   Ã‚  Ã‚  Ã‚  Ã‚  That is the way censorship is brought up in the book. Today, however, it affects more than just books. It is used in movies, TV, news, magazines, and the Internet. Words, obscenity, and some vulgar things can be kept from the viewing audience. They can keep certain people, those seventeen and younger from seeing movies, TV, or Internet sites. In the book one character makes a point of saying, â€Å"ignorance is fatal.†   Ã‚  Ã‚  Ã‚  Ã‚  Man’s cruelty to man is another issue in the Martian Chronicles that is and was a problem in the real world. In the book, it shows up in three chronicles, â€Å"Ylla†, â€Å"The Off Season†, and â€Å"Way in the Middle of the Air†. â€Å"Ylla† and â€Å"The Off Season† are more of family cruelty, while â€Å"Way in the Middle of the Air† deals more with racism. Both are reasons that people get hurt and even die for no reason. Or for a stupid reason like color or gender.   Ã‚  Ã‚  Ã‚  Ã‚  In â€Å"Ylla†, Ylla, or Mrs. K., is noticing that her marriage is not as fun as it used to be and her and her husband don’t go out anymore. Bu... ...family live on Mars. His real family had died years before. He was so lonely that he created robots to replace his dead family. He could not handle the fact that his family had died and left him to live alone. Many people, if they could, would bring back their diseased family members, loved but unforgotten.   Ã‚  Ã‚  Ã‚  Ã‚  Most people miss family and friends that have moved or died. Some just may be shy and not have friends. Loneliness is something one can’t do anything about. It will happen. You can’t even make a law against it because it is a feeling. Some get over there loneliness by meeting new people, but still others never get over it and live lonely.   Ã‚  Ã‚  Ã‚  Ã‚  All of these issues mentioned are important today and it the book. Some have become better of over the last fifty years; some have become worse. Other issues not chosen affect life and the world too. Although these issues are still a problem, the world is what it is because of the, be that good or bad. Censorship, man’s cruelty to man, and loneliness will affect us even if we are on another planet. However that does not mean that we shouldn’t try to stop the problem. If we work together we can abolish the wrongs of this world!

Tissue Culture Technique for Callus Induction

Sarhad J. Agric. Vol. 23, No. 1, 2007 * Department of Plant Breeding and Genetics, NWFP Agricultural University, Peshawar – Pakistan. ** Agricultural Biotechnology Institute, National Agricultural Research Center, Islamabad – Pakistan. TISSUE CULTURE TECHNIQUES FOR CALLUS INDUCTION IN RICE Hidayat Ullah*, Iltaf Ullah*, Sultan Akbar Jadoon* and Hamid Rashid** ABSTRACT Seeds of two rice varieties Basmati-370 and Basmati-385 were evaluated for invitro callus induction at Agricultural Biotechnology Institute in National Agricultural Research Center (NARC), Islamabad during 2001-02, using M.S and N6 media supplemented with 2, 4-D (2,4-Dichlorophenoxi acetic acid) and BAP (6-benzylaminopurine) at @ 2. 0, 2. 5 and 0. 1, 0. 5 mgl-1 respectively. Objective of our study is to know the actual procedure for seed sterilization and to provide a well-adopted technique for callus induction in these varieties by using M. S and N6 media along with different concentrations of growth hormo nes. Seeds were used as explant source and to avoid chance of contamination sodium hypochlorite and ethanol at the rate of 50% and 70% were used respectively.Best response toward callus induction were observed for Bas-385 on both MS and N6 media however N6 media was proved to be best. Calli obtained from Bas-385 were friable and vigorous as compare to Bas-370. Bas-370 respond moderately on MS and N6 media at various combinations of 2,4-D and BAP. Bas-370 on MS media supplemented with 2,4-D and BAP @ 2. 0 and 0. 1 mgl-1 gave good performance towards callus induction. Over all results indicated that best callus were induced on MS and N6 when supplemented with 2,4-D and BAP @2. 0 and 0. 0 mgl-1 for variety Bas-385. INTRODUCTION In Pakistan rice is the second leading crop after wheat.In 2000-2001, the world annual production of rice was 598 million tones (FAO 2002). Asia is the largest producer of rice, with Bangladesh, China, Philippines, Thailand and Vietnams as the leading rice produ cing nations. In Pakistan rice covered an area of 2. 52 million ha, with the production of 5. 16 million tones in 1999-2000. It also play important role in our national economy. During 1999-2000 about 1. 92 million tones of rice was exported and earn about 465. 8 million US$. Rice is susceptible to a range of diseases and pests, which annually destroy about 55 percent of rice crops. The most common diseases are caused by he fungi sheath blight and rice blast, and the stalk borer is a common insect pest. Rice is composed of essential food components, therefore more than two billions people in the globe depend on rice for more than half of the proteins and calories they consume (Khan et al. 2000). Due to its increasing importance in nutrition and economy, it is now felt that new varieties of rice, having good agronomic characters, should be evolved. Crop improvement through tissue culture techniques is easier and more often in use as compared to conventional plant breeding (Yamada, 19 86). Somaclonal variations commonly ppear after tissue culture, which involve a callus stage (Larkin and Scow Croft 1981). Callus is undifferentiated mass of rapidly proliferating cells, can be obtained by culturing explants source (seed, node, bud, leaves, meristem and root tips etc) on nutrient medium containing specific growth regulators along with a standard recipe of chemicals. Rashid et al. (2000) studied that rice seeds have more potential for callogenesis as compared to node or tip. Successful callus induction from rice seed has been reported by several researchers (Gonalz 2000; Navraj et al. 1999; Marrassi 1996; Valdez et al. 1997; Xie et al. 995). But an improved method for callogenesis was reported by Rashid et al. 2000). The present study is based on tissue culture techniques carried out in ABI laboratory for callus induction in rice varieties viz. Basmati-370 and Basmati-385. Two types of basal media M. S (Murashige and Skoog 1962) and N6 (Nitsch and Nitsch, 1969) suppl emented with 2,4-D (2,4- dichlorophenoxyacetic acid) alone or in combination with different concentrations of BAP (6-benzylaminopurine) were used for callus induction. Hidayat Ullah, et al. Tissue culture techniques for callus induction in rice†¦. 82 MATERIALS AND METHODSThe research work for callus induction in rice was conducted at the tissue culture laboratory of Agricultural Biotechnology Institute in National Agricultural Research Center (NARC), Islamabad, during 2001-02. The procedure of this research work has been divided in the following four main categories. Surface Sterilization of Rice Seeds Seeds of Basmati-370 and Basmati-385 were provided by rice programmed, Agricultural Biotechnology Institute (ABI), National Agricultural Research Center Islamabad, and it was taken as explant source for callus induction. Healthy and mature seeds were selected by hysical appearance and they were dehusked manually. Seeds were first washed with detergent and then rinsed three times with simple tap water. For surface sterilization of seeds Clorox (5. 25% sodium hypochlorite) and ethanol was applied. After the applications of Clorox and ethanol seeds were rinsed thrice with autoclaved distilled water. Finally the seeds were dried with autoclaved filter paper, and they were shifted carefully to the culture room of Agricultural Biotechnology Institute. Basal Media Preparation M. S and N6 basal media were used for callus initiation. These media were prepared according to he ingredients (Table I). The exact amount of nutrients was dissolved in the distilled water. Two types of growth regulators 2,4-D alone or in combination with BAP was used for callus induction. 2,4-D @ 2. 0 and 2. 5 mg l-1 and BAP @ 0. 0, 0. 1, 0. 5 mg l-1 respectively was added in the media. Sucrose at the rate of 3% and agar at the rate of 0. 7% was also added in the media. PH of the media was adjusted at 5. 78-5. 80 with the help of PH-meter. M. S. and N6 media were poured into the test tubes, it was plugged properly and autoclaved at 20 lbs pressure for 15 minutes in the autoclave machine.Inoculation of Sterilized Seeds The most important step in tissue culture technique is the inoculation of seeds. This operation was performed in the laminar flow cabinet at the culture room of ABI. Before the operation surface sterilization of the laminar flow unit was carried by UV-light for two minutes. After that hands were disinfected with 75% ethanol to prevent chance of contamination. Dried seeds were then inoculated into test tubes under aseptic condition in laminar flow unit. To minimize chance of infection the instruments were dipped in disinfectant after every operation. Growth ChamberInoculated cultures were incubated at 25 ±3? C under the influence of 2000-lux light intensity for 16 hours photoperiod. Callus induction of rice seeds were observed after 21- days. The data for callus induction frequency were recorded for two rice varieties on two different media with differen t concentrations of growth regulators. Table I Composition of MS and N6 media Macronutrients KNO3 1900 2830 NH4NO3 1650 0 CaCl2. 2H2O 440 166 MgSO4 370 90. 37 KH2PO4 170 400 (NH4)2 SO4 — 463 Micronutrients MnSO4. H2O 16. 9 3. 33 H3BO3 6. 2 1. 6 KI 0. 83 0. 80 ZnSO4. 4H2O 8. 6 — ZnSO4. 7H2O — 1. 5 NaMoO4. 2H2O 0. 5 — CuSO4. 5H2O 0. 025 — CoCl2. 6H2O 0. 025 — Iron source FeSO4. 7H2O 27. 85 27. 85 NaEDTA 37. 25 37. 25 Vitamins Myoinositol 100 — Nicotinic Acid 0. 5 0. 5 Pyridoxine HCl 0. 5 0. 5 Thiamine HCl 0. 1 1. 0 Glycine 2. 0 — Sucrose 30g 30g Agar 7g 7g RESULTS AND DISCUSSION Results obtained from tissue culture techniques of Bas-370 and Bas-385 performed in ABI laboratory and repeated three times from 10th February to Sarhad J. Agric. Vol. 23, No. 1, 2007 83 October 2001. Chance of contamination was much low when both the varieties were treated with 50% Clorox and 70% ethanol. Oono (1981) also used eeds as explants source for rice callus induction. The main objective of our study is to know the actual procedure for seed sterilization and callogenesis in these cultivars. The potential of both varieties for callus induction was observed significantly different on M. S and N6 media at different concentrations of growth regulators. It is noteworthy that N6 and M. S media, which proved to be optimum for the growth of callus, were unable to support cell growth in liquid media. Callus induced from both the varieties were different at various level of 2,4-D and BAP. Maximum callus formation (62. 5%) was recorded or Bas-385, followed by Bas-370 (55. 55%) when seeds were cultured on MS medium supplemented with 2,[email  protected] 0 mgl-1 and 2mgl-1 2,4-D+0. 1mgl-1 BAP respectively (Table II and IV). Lowest callus of 41. 66 % was observed each for Bas-370 and Bas-385 when MS medium is supplemented with 2. 5 and 0. 5 mgl-1 of 2,4-D and BAP respectively. It is cleared that potential of Bas-385 towards callogenesi s was higher than Bas-370. Averaged across MS media callus induction frequency was 48. 14 % for BAS-370 vs 53. 22 % for BAS-385 (Fig 2). This is equivalent to the net reduction of 5. 08 % for BAS-370. Growth regulator 2,4-D at he rate of 2mgl-1 was suggested and proved to be best for callus induction in both the varieties. Using N6 media callus induction frequency ranged from 20. 83 to 68. 05% for both the varieties. When 2,[email  protected] was supplemented with N6 media, produced highest and good quality callus from Bas-385 (68. 05%) and minimum (20. 83%) from Bas-370 (Table III and IV). This result indicated positive correlation between 2,4-D and Bas-385 and negative for Bas-370. Average across N6 media callus induction frequency was 23. 6 % for Bas-370 vs 60. 64 % for Bas-385 (Fig. 3). This is equivalent to the net reduction of 7. 2 % for BAS- 370. Calli obtained from both the varieties were friable, granular, and yellow in color. So it was proved that N6 media is better for callus induction of rice as compared to M. S medium. Overall result of BAS-385 was best on various concentrations of 2,4-D and BAP on both, MS and N6 media. Callus form Bas-385 was healthy and more fleshy as compare to Bas-370 (Figure 1). The active division of cells was more prominent in the callus of Bas-385, that’s why it looks bulky. Secondly Bas-385 had more capacity for producing callus, especially when N6 media supplemented with 2,4- [email  protected]Agronomic features of Bas-385 are also better than Bas-370 because it is developed through hybridization between Bas-370 and TN-1. Callus induction must be dependent on the genetic potentials of the variety and secondly the combination of hormones at different concentration. Callus induction is the best way to create somaclonal variations in crop plants. Variations are the basis for improvement and some time this variation is heritable. Oono (1981) cultured seed explants of rice varieties and observed variation for cert ain agronomic characters that are also heritable. Once cultured techniques were stablished in rice, it become possible to apply them for callus regeneration and transformation. (b) Calli obtained from Bas-385 (a) Calli Obtained form Bas-370 Hidayat Ullah, et al. Tissue culture techniques for callus induction in rice†¦. 84 Table II Percentage callus induction frequency and contamination in Bas-370 on M. S Medium Treatments Sterilizing agents Clorox time/Ethano l time (min) Hormone in mg L-1 # Of inoculated test tubes % Contamination % Callus induction frequency % Clorox % Ethanol 2,4-D BAP 1 50 70 20/1. 0 2. 0 0. 0 72 58. 33% 20. 83% 2 50 70 20/2. 0 2. 0 0. 1 72 73. 61% 22. 22% 50 70 20/4. 0 2. 5 0. 5 72 52. 77% 27. 77% Table III Percentage callus induction frequency and contamination in Bas-370 on N6 Medium. Treatments Sterilizing agents Clorox time/Ethano l time (min) Hormone used in mg L-1 # Of inoculated test tubes % Contami nation % Callus induction frequency % Clorox % Eth anol 2,4-D BAP % Clorox 1 50 70 20/1. 0 2. 0 0. 0 72 1 50 2 50 70 20/2. 0 2. 0 0. 1 72 2 50 3 50 70 20/4. 0 2. 5 0. 5 72 3 50 Table IV Percentage callus induction frequency and contamination in Bas-385 on M. S Medium. Treatments Sterilizing agents Clorox /Ethanol time (min) Hormone used in mg L-1 Of inoculated test tubes % Contami nation % Callus induction % Clorox % Ethanol 2,4-D BAP % Clorox 1 50 70 20/1. 0 2. 0 0. 0 72 1 50 2 50 70 20/2. 0 2. 0 0. 1 72 2 50 3 50 70 20/4. 0 2. 5 0. 5 72 3 50 Table V. Percentage callus induction frequency and contamination in Bas-385 on N6 Medium Treatments Sterilizing agents Clorox/Etha nol time (min) Hormone used in mg L-1 # Of inoculated test tubes % Contami nation % Callus induction frequency % Clorox % Ethanol 2,4-D BAP % Clorox 1 50 70 20/1. 0 2. 0 0. 0 72 1 50 2 50 70 20/2. 0 2. 0 0. 1 72 2 50 3 50 70 20/4. 0 2. 5 0. 5 72 3 50 Sarhad J. Agric. Vol. 3, No. 1, 2007 85 20. 83 62. 5 22. 22 55. 5 27. 77 41. 66 0 20 40 60 80 Bas-370 Bas-385 Variet ies Callus induction freq (%) 2,4-D&[email  protected] 0&0. 0 2,4-D&[email  protected] 0&0. 1 2,4-D&[email  protected] 5&0. 5 47. 22 68. 05 55. 55 61. 11 41. 66 52. 77 0 10 20 30 40 50 60 70 80 Bas-370 Bas-385 Varieties Callus induction freq (%) 2,4-D&[email  protected] 0&0. 0 2,4-D&[email  protected] 0&0. 1 2,4-D&[email  protected] 5&0. 5 Fig. 2. Callus induction frequency (%) of Bas-370 and Bas-385 on M. S media at different level of 2,4-D and BAP. Fig. 3. Callus induction frequency (%) of Bas-370 and Bas-385 on N6 media at different level of 2,4-D and BAP. Hidayat Ullah, et al.Tissue culture techniques for callus induction in rice†¦. 86 CONCLUSION AND RECOMMENDATION Infections of the callus is main problem in tissue culture technique so we should adopt the following precautions. 1. We should sterilize the seeds in 50% hypochlorite solution for 20 minutes and all the apparatus like flasks, petri plates, blades and forceps etc. should be disinfectant with 70% ethan ol. Media should be prepared accurately with respect to concentrations and PH of the media must be maintained properly. Exact amount of growth hormones must be added. 2. Seeds of Bas-370 on MS media with combination 2. and 0. 1mgl-1 should be used to get maximum callus, while hormonal combination 2,4-D and BAP @2. 0 and 0. 0 mg l-1 should be used for better callus induction of Bas-385 on N6 media. Bas-385 is an improved version of Bas-370 because it is developed through hybridization between Bas-370 and TN-1. That’s why it is more responsive towards callus as will as high doses of fertilizers. Over all results indicated that Bas- 385 having more potentials and suitable for further genetic studies. REFERENCES FAO. 2002 Food Outlook Bullet. No: 1,FAO, Rome. Gonalz, M. C. 2000. Effects of different growth egulators on in vitro culture of rice cultivors. Tropicales. 21(1): 27-28. Khan, J. A. , F. F. Jamil and M. A. Gill. 2000. Screnning of rice varieties against bakanae and bacte rial leaf blight. Pak. J. Phytopath. 12(1): 6-11. Larkin, P. J. and W. R. Scowcraft. 1981. Somaclonal variation a novel source of variability from cell cultures of plant improvement. Theor. Appld. Genet. 60:197-214. Marasi, M. A. , O. A. Bovo, A. Socchi and L. A. Mrongiski. 1996. Cytokining in the callus induction medium for plant regeneration of rice. Phyton Int, J. Exp. Bot. 59(1-2): 155-160. Murashige, T. and F. Skoog. 1962.Arevised medium for rapid growth and bioassays with tobacco tissue cultures. Physiol. Plant. 15: 473-497. Navraj, K. , M. S. Gill, G. Raman, T. S. Bharaj, S. S. Gosal, N. Kaur and R. Gill. 1999. Factors enhancing somatic embryogenesis and high frequency plant regeneration in rice. Crop Improv. 26(1): 23-27. Nitsch, J. P. and C. Nitsch. 1969. Haploid plants from pollen grains. Sci. 163: 85-87. Oono, K. 1981. In vitro methods applied to rice in plant tissue culture. T. Athorpe, ed. Acad. Press, New York. pp. 273-298. Rashid, H. , A. Toriyama, K. Qurashi, Hinta a nd K. A. Malik. 2000. An improved method for hoot regeneration from calli of Indica rice. Pak. J. Biol. Sci. 3 (12): 2229-2231. Valdez, M. , M. Monoz, J. R. Vega and A. M. Espinoza. 1997. Plant regeneration of Indica rice from mature embryo derived calli. Revistade Biologia Tropical. 44(3): 13-21. Xie, J. H. , M. W. Gao, Q. H. Cai, X. Y. Chens, Y. W. Shen and Z. Q. Liang. 1995 Optimized growth regulators combination in Japonica rice. Plant Cell Tissue and Organ Culture. 42(3): 245-250. Yamada, Y. , T. Q. Yang and D. T. Tang. 1986. Plant regeneration from protoplast derived callus of rice (Oryza sativa L. ). Plant Cell Reports. 4: 85-88

Digestive System Travel Guide

Anatomy Travel Bureau welcomes you to Your Digestive System! [pic] Kaitlynn Daseke-Collette Anatomy and Physiology The Digestive System This journey your about to experience may take up to several days. I hope you’ve packed well. We will be going through seas, acid rains, and dry, desert like conditions. So without wasting any more time let me give you a play by play of your vacation! First Stop Our first stop will be breakfast after you wake up on day one. You will be able to eat what ever your heart desires. Anything from a stack of pancakes to something completely unrelated to â€Å"breakfast†, like pizza.Choose wisely, you will be stuck with your breakfast for the rest of the tour! [pic] This is where I hand it over to your breakfast! Enjoy your trip! [pic] Hello there! I’m that stack of banana pancakes you devoured at breakfast this morning. Our real first stop on this journey through your digestive system is the mouth. The mouth is a pretty obvious place on the body. So when you put me in your mouth this morning I met up with some saliva and then I was chewed also known as masticated. Your cheeks and lips hold your food in your mouth while your teeth take care of the â€Å"masticating†.The tongue is what helps mix food and saliva together and it also initiates swallowing. The process of digestion has already begun believe it or not. This is the first step in breaking food down. Although this may sound a little gross it’s not just about breaking down food for digestion, we have tiny buds on our tongue which I’m sure you all know as TASTE BUDS! Taste buds are the â€Å"taste receptors† allowing you to taste the butter, banana, syrup and what ever else you put on me this morning before we began this journey!Before we get any further and you are unable to hear me let’s just go through all the technical stuff so we can actually enjoy the sites! Our second stop on this fascinating trip will be the Pharynx. Two passageways that are most commonly taken are the oropharynx and laryngopharynx. There is also the nasopharynx. Which when your body was under development we agreed to divide and it now currently belongs to the respiratory system, it’s kind of like their own private door. But not to worry, you’re not missing much! First we will go through the oropharynx which leads to the laryngopharynx which will lead us to the esophagus.You might feel a little bit of a squish here and there from the muscle layers of the pharynx walls. They contract to help propel us to the esophagus, this is also called peristalsis. The Esophagus This is also known as the gullet. It runs most hours of the day from the pharynx through the diaphragm to the stomach (it’s about 10 inches/25 cm long). Before we get any further I should probably let you in on this one thing. The walls of the alimentary canal organs (esophagus to large intestine) are made up of basically the same types of tissue layers. The first would be mucosa, it’s the innermost layer. It’s a moist membrane that lines the cavity (lumen). Mucosa has surface epithelium, a small amount of connective tissue and a bit of smooth muscle. †¢ Second we have submucosa which as you might be able to guess is found beneath the mucosa. It’s basically a connective tissue that contains blood vessels, nerve endings, lymphnodules and lymphatic vessels. †¢ There’s a muscle layer made up of an inner, circular layer and an outer longitudinal layer of basically just smooth muscle cells, this is called the muscularis externa. Serosa is the outermost layer of the wall. This is a single layer of flat serous fluid that produces cells. Visceral Peritoneum makes slippery parietal peritoneum. Parietal peritoneum lines the abdominopelvic cavity by mesentery (way of a membrane extension). The walls also contain important â€Å"intrinsic nerve plexus†, I know your thinking you don’t k now what that is, to be honest neither am I. But I think it might be kind of important to know that there is two, the submucosal nerve and the myentreric nerve plexus. They’re actually a part of the autonomic nervous system.There just there to regulate the mobility and secretory activity of GI (Gastrointestinal) tract organs. [pic] Alright, third stop. The stomach. It is located on the left side of the abdominal cavity. Here we will be hidden by the liver and diaphragm. There are a few places around the stomach you might want to stop and see. The first is the cardiac region, as you might guess it was named this due to its position near the heart. It surrounds the cardioesophageal sphincter which is where we will have entered the stomach. The fundus is the expanded part, very roomy, you should probably stretch your legs here, move around.It’s lateral to the cardiac region. The body then is the midportion and as it narrows it turns into the pyloric antrum. Then of course the funnel shaped pylorus which is the part that is continuous with the small intestine. Interesting Facts about the Stomach †¢ Approx. 10 inches †¢ Diameter depends on how much food its holding †¢ A full stomach can hold about 4 liters/1 gallon of food From the stomach we will enter the small intestine through the pyloric sphincter. This is the major digestive organ. It prepares usable food for the journey into the cells of the body.The small intestine is anywhere from 8 to 18 feet long in a living person. It’s kind of a tube made of muscle and it just extends from where we entered to the ileocecal valve. At the small intestine there are three places I recommend taking a peak at. †¢ Duodenum means â€Å"12 finger widths long†. †¢ Jejunum (â€Å"empty†) †¢ Ileum (â€Å"twisted intestine†) – this also joins the large intestine at the ileocecal valve. Most of your food digestion occurs in the small intestine and it is m ore than qualified to do so. The walls of the small intestine have three structures that help tremendously with absorption.These three are the microvilli, villi, and circular folds. The microvilli are tiny projections of the plasma membrane of the mucosa cells that make the cell surface look fuzzy. The villi are fingerlike projections; they have a velvety appearance and also feel soft. This is where a lot of the absorption occurs. There are also circular folds that are deep folds of mucosa and submucosa layers. ?Villi Believe it or not by the time you are done looking around these three sites and seeing the microvilli, villi and circular folds we will be on our way already through the ileocecal valve to the large intestine.So grab your stuff and let us go take a look see. The Large Intestine Though it’s larger in diameter it is shorter than the small intestine. The large intestine runs about 5 feet long. These 5 feet are from the ileocecal valve to the anus. The main function of the large intestine is to dry out the food residue that cannot be digested. It does this by absorbing water and eventually eliminates the residues from the body as feces. The large intestine is divided into 5 subdivisions. They are: 1. The Cecum, its saclike and the first part of the large intestine. 2.The Appendix, which hangs from the cecum, it’s very wormlike and sometimes because of its shape it can cause issues like appendicitis. This happens when the appendix becomes inflamed. 3. The colon which has several regions that takes you through the pelvis. 4. The rectum lies in the pelvis between the sigmoid colon and anus. 5. The anus, this is the part where feces exit the body. The anus is where our journey together will end. I hope you enjoy this journey through out the digestive system and come back to visit again real soon! [pic] Without any further explanation, please follow me through the pharynx†¦

What Can African Americans Do to Become More Marketable?

What can African Americans do to become more marketable in this economy? The average African Americans have by far been significantly unmarketable in comparison to their Average Caucasian counterparts. However, it should be mentioned that there are some African Americans who are also very marketable in our society. These few successful and marketable African Americans know and apply key principles in marketing themselves. This is the difference that separates the unmarketable and marketable African American.However, there are ways for the unmarketable African Americans to become more marketable in the global economy. In this essay, I will only be discussing seven of those major ways. African Americans can become more marketable if they: develop a highly impressive resume; prepare to participate in the global economy; become technologically savvy; are flexible in job expectations; improve on interview skills; network wisely; and improve on his or her interview skills.The first thing t hat African Americans who want to become more marketable should do is attend college or university and study a challenging major. This is because it is important to have at least a Bachelors degree in order to get a meaningful job that will bring any kind of success to ones life. After attending University; one should develop a highly impressive resume. An impressive resume that documents evidence of academic excellence, demonstrated leadership, well developed social skills, and personal initiative will definitely get the attention of corporate recruiters and hiring managers.It is also important to participate in the global economy. One can do this by becoming familiar with another language. Becoming familiar with at least one of the major languages that are involved in international commerce such as: Japanese, Spanish, or Chinese; is enough to put one head and shoulders above his or her peers. One should also try to become more technologically savvy because the advancements in Info rmation Technology affect almost every academic and occupational profession.In order to become more technologically savvy, one should try to take a few computer or internet-related courses and also read professional journals in his or her field that has a technological slant. African Americans should also try not to limit him or herself by having predetermined notions about the size of the company that they want to work for or their exact job title or starting salary.This is because in doing so employers may not be very welcoming. To be as marketable as possible an African American should indicate to prospective employers that they are flexible to employment and career advancement. In order to be marketable African Americans should also improve on interviewing skills. This can be done by reading books and articles on interviewing and also by attending career placement office tutorials and work shops on interviewing.Another way to work on interviewing skills is to role play with some one and have them videotape the session. It is also of utmost importance for African Americans who want to become more marketable network wisely and mentor with someone successful in his or her career field. Professional networking can afford an individual to meet successful professionals in his or her field that can alert him or her to what’s available in the hidden job market of which he or she may not have otherwise known about.Networking is also important because the more people who know about ones career interest and can speak favorably of him or her, the more desirable he or she will be to other prospective employers. African Americans should mentor with someone successful in his or her field, this is because it is career enhancing to mentor with someone who has achieved distinction in the African American’s academic/occupational field and is willing to offer career guidance and support. A well connected mentor can sponsor his or her membership in one or more pre stigious organizations.Listing these associations on ones resume can enhance his or her written credentials and give him or her a bit of a competitive edge in job hunting. In conclusion, the average African American can become more marketable if he or she is willing to learn and practice the ways that the marketable use to become more marketable. These ways/principles are quite easy to follow and anyone can implement them. However, one needs to be dedicated, ambitious, and hard-working in his or her endeavors.

Tom Sawyer

The Adventures of Tom Sawyer Whether or not many have read the book, Mark Twain’s â€Å"The Adventures of Tom Sawyer† has been referenced numerous times in social media. It has been used in media in such formats as movies and cartoons. Because of this, many believe Tom Sawyer to be a children’s book, while others believe it to be a more literal adult influenced novel. With the many outside influences such as religion, writing styles, and the author’s opinions it can be argued that Mark Twain’s â€Å"The Adventures of Tom Sawyer† can be seen as either a children’s book or an adult’s novel.Many believe it is more suited as an adult book. The Influence of religion in any storyline can affect the plot greatly. â€Å"If we maintain the implicit conjunction between the Bible and Tom’s books, this can be read as a very serious critique of the abuses of religion† (McIntosh-Byrd 15). In his critique, Byrd states how religio n is often seen as the only way to go. Many don’t know any different and therefore Byrd believes the book to be more centered on religion and its constant critique. â€Å"The fact that both of these scenes take place within the church in indicative of an implicit critique of the role of religion in St.Petersburg† (McIntosh-Byrd 15). Again here Byrd says that religion has changed the storyline somewhat. Because of these reasons it can be argued that Tom Sawyer is more suited for adults because adults can understand what Twain was trying to say more and he knew this by the way he wrote. The different writing styles in The Adventures of Tom Sawyer change the audiences that the story appeals to. â€Å"These defects of structure would probably not appreciate the flexibility of the narrative, it’s easy, casual gait. † (Doren 431).From this view, Mark Twain’s â€Å"The Adventures of Tom Sawyer,† can be seen as more of a children’s book becau se of its easy going nature. The lack of responsibility in this book translates well to children. â€Å"But Tom’s energy did not last. He began to think of the fun he had planned for this day, and his sorrows multiplied. † (Twain 12) Many are without responsibilities and hope to never gain any. â€Å"Mark Twain drives with careless, sagging reins, but he holds the general direction. † (Doren 431) Twain keeps a general hold on the story but he allows the characters to roam bout freely, which makes it more kid friendly, in the sense that the kids want to feel like they are truly in charge. â€Å"And when the middle of the afternoon came, from being a poor, poverty-stricken boy in the morning, Tom was literally rolling in wealth. † (Twain 15) The different writing styles affected the story in one way but at the same time it can affect it in the other opposite direction. On the other side of the spectrum, this book can be seen as an adult’s novel based on the writing styles evident in the text. Twain borrowed its structure from several literary genres popular in the United States during the late nineteenth century: Local color-fiction, Juvenile fiction, sentimental romance, and the dime thriller† (De Santis). Adults can handle a lot more styles in books such as these. â€Å"The Adventures of Tom Sawyer†¦Represented an attempt to cultivate the gentled, eastern-seaboard audience currently enthralled by local-color fiction. † (Baetzhold) Again here critic has noticed the same trend. Local-color or regional literature is fiction and poetry that focuses on the characters of a story.This is evident in De Santis’ critique of â€Å"The Adventures of Tom Sawyer†. Noticing the author’s opinions the reader can tell whether they meant for their book to be a children’s book or an adult’s piece of literature. â€Å"It had no history, and no future, existing in the framed bookends of the aut hor’s comments at the beginning and end of the tale. † (McIntosh-Byrd 15) Twain’s opinions about the way things should be in society affects the story. Say another writer had written about the exact same topic it would be completely different. Twain put a lot of his own thoughts and beliefs into his story. The Adventures of Tom Sawyer is an extremely difficult work to approach analytically because it is so embedded in the author’s own childhood. † (McIntosh-Byrd 13) It has been argued that the town of St. Petersburg in the story was Twain’s interpretation of his childhood hometown. â€Å"Uncertain whether it should be aimed at a youthful or an adult audience, Mark Twain once more submerged in the shadow the realistic aspects of puberty, removing portions of the book which might offend younger readers. † (Baetzhold) if Twain didn’t remove these portions f the story it would have definitely been focused towards a more mature audien ce. Since he did it is more appropriate that â€Å"The Adventures of Tom Sawyer† be focused more on the youthful audience. With the many outside influences such as religion, writing styles, and the author’s opinions it can be argued that Mark Twain’s â€Å"The Adventures of Tom Sawyer† can be seen as either a children’s book or an adult’s novel. The book was originally written as an adult’s novel, but over the years since it has been written it has slowly been more closely analyzed as a children’s book.

Case Study Fast Fashion Essay Example for Free

Case Study Fast Fashion Essay After two decades of fast fashion popularity, retailers and consumers have come to realize one of its biggest issues, its impact on the environment. Can fast fashion and sustainability work together? The affordability of Fast Fashion is one of the main reasons for its high demand. Lack of authenticity or Intellectual Property. Fast Fashion has forced retailers to desire low cost and flexibility in design. Lack of quality in production Rapid production prevents consumers to get an idea of what’s to expect. (Forecasting) Excess of production. Wastes of these products from the retailers and consumer harm the environment. Reveals what is exposed in runways and fashion shows ahead of time. Fast fashion exploits the young consumer by incentivizing impulse behavior. Consumers are getting used to buying more frequent. Due to such rapid turnover, there’s a lack of exclusivity. Step 3 1. Higher quality, lower quantity. Pros Better option for repair: The customer will rather repair a good quality garment than can last than an inexpensive low quality one. Customer satisfaction: Consumers will be happier with a better value product. Long life: Products that are of better quality will definitely last longer so the consumer wont be forced to dispose. For the retailer, there is a great possibility they may attract a variety of new consumers that do appreciate superior quality. As a result of lower quantity, garments will stand out by look fresher and spacious on the sales floor. Cons Retailers may suffer fewer sales. There is a possibility they may lose some of their usual customers. Fewer options, now that there is a lower quantity. Higher quality means it wont be as affordable for the consumer as it used to be. Companies may have to reinvent themselves and state the fact that they are now enhancing the quality of their products. Consumer will be unwilling to compromise on price. Pros Consumer will be satisfied with having a say in the creation of its particular product. This idea will attract and motivate many more consumers. It’s innovative and fun for the consumer. The design will be personalized and the consumer will want to keep. Cons May require more shopping time for the consumer Products may not be as inexpensive now that the retailer will cater to every individuals needs. Consumers of fast fashion may be disappointed that there will now be less variety. Consumers may not adapt to this idea and reject it. 2. No more wasting, get compensated! Recycle and Reuse. The system involves customers bringing all the used items back to the stores and getting compensated with either a discount or a minimal refund. This is to incentive the customer to care more instead of wasting and harming the eco-system. Pros Companies will be take back used garments and send them off to countries in need. Companies will be able to reuse and reproduce them. Customer’s ability to help other in need is facilitated by the companies they have purchased from. Customers get an incentive to bring items back after knowing they also get a discount/store credit/ refund. Case Study Fast Fashion. (2018, Oct 15).

Fostering a positive work place Article Example | Topics and Well Written Essays - 500 words

Fostering a positive work place - Article Example Individuals need to put effort in achieving this type of a relationship. Questions therefore are often asked in to clarifying a good working relationship. It is the one that compromise of trust, respect, support and communication. These are the strategies that a good leader can oversee in order to achieve a healthy relationship among their staff. Trust should be a two way traffic, staff should work hard to earn trust from their colleagues and so their leaders. Trust generally involve integrity, believing in someone and giving them a chance in some highly rated activities. This comes with competence, congruency and constancy where competence involves being authentic, real and conscious about ones work e.g. nursing. When this is achieved, one can easily trust another. Congruency shows some level of unity in what have been agreed in unison. Constancy is the ability to be easily accessed or ones availability. Respect is also a thing to look for when trying to achieve a good and healthy working environment. This is through having unconditional positive regard for each other despite the position at work, social background, race, economic background or even the level of education. It is the belief that every human being has a contribution to make in the world. Support is also one of the major point when strategizing about creation of a healthy working environment. It’s the act of being there for each other at no cost. Nursing profession needs unity to moves its many activities in serving people. Communication is the core point to hit when soliciting for a healthy relationship in an organization. It is a good strategy in increasing positive interaction in the work place. Incentives. It is a reward or bonus given in appreciation of a good did or towards an outstanding performance. It is a vice that good leaders should always inculcate in trying to create a positive relation in a work place. Gifts can be given to all the staff at large and also