The Visual Art Of The Twentieth Century - 2096 Words

Introduction The visual art of the twentieth century, known as modernism, was often thought of as being in a state of uncertainty or crisis. According to Robert Hughes, the key word for this new century was â€Å"modernity† meaning to believe in technology and not craft , as machines with their â€Å"fast, metallic, elastic [and] warm† appearances were new and fascinating to people at this time. The causes of the major turning point within the visual arts at this time was due to changes such as the invention and mass production of new technology and its influence on people. As well as the impact of war, the discovery of new information and the development of various concepts such as the possibility of a fourth dimension, as well as the exploration of the conscious and unconscious mind also influenced modern art. The art movements that resulted from this period in which times were changing rapidly included Futurism, a movement that embraced machinery and praised war, Cubism, which aimed to display a variety of possible viewpoints of an object or figure, Dada, an anti-war movement created amid World War I, with the aesthetics of the artwork considered secondary to the ideas conveyed, and Surrealism, described as an â€Å"impatient interrogation of reality† which aimed to recognise desire. Various artists from various art movements demonstrated elements of this perceived crisis within their works in order to question the world and challenge society in different ways. Futurism FuturismShow MoreRelatedPostmodernism : Modernism And Postmodernism1549 Words   |  7 Pagesof cultural consciousness, which is implemented in the artistic practice of symbolism, expressionism and acmeism. In the socio-historical context, it means the period of modernism in the development of culture from the late nineteenth to mid-twentieth century, that is, from Impressionism to a new novel and the theatre of the absurd. Modernism as a world based on the principles of urbanism (the cult of the city), technologism (the cult of the industry), primitivism (the cult of the underdeveloped roleRead MoreEssay about Interwar Avant-Garde Artwork And Its Community Impact852 Words   |  4 PagesThe â€Å"art and life† aspects of the interwar avant-garde are an advanced socially trivial form of art which to a bigger extent is symbolic of the visual setting of the human community. It is the art of expressionism in any artistic work which greatly influence its adaptation by the target audience. It has been evidently claimed that most artistic works of the early twentieth century have had a number of varied themes all encompassing the political environment of the time. The interwar avant-garde isRead MoreThe Beginning Of The Twentieth Century1482 Words   |  6 PagesThe beginning of the twentieth century marked a significant event not just in the changes of ideology, technology, but also the way artists approach art. Communism and Fascism were on the rise and technological advances held strong since the industrial revolution. However, â€Å"The need for a wholesale new approach to art in the nineteenth century arose as the traditional forms of art were borne down on by new conditions and experiences.† (21) became apparent. To satisfy this need artists took many differentRead MoreThe Role Of Visual Arts For Stage Interventions Into The Representation Of The Female Self722 Words   |  3 Pagesmirror in visual art, with particular reference to the portray al of women.†¨By drawing from the field of art and literature featuring the mirror and reflection, I will be looking at how the work of contemporary women artists and photographers challenged traditional attitudes and practices. This dissertation will be about women who use visual arts to stage interventions into the representation of the ‘female self’.†¨The female body and mirror have repeatedly featured in visual art over the centuries. It isRead MoreThe Great Gatsby By F. Scott Fitzgerald1651 Words   |  7 Pagesmovement in European and American art, literature, and culture. It started from wide scale and far reaching transformations in Western society in the late 19th and early 20th centuries. World War 1 is often seen as a starting event of Modernism. The devastation of Western Civilization in the great war accelerated and strengthened Modernist thinking. Modernism was the most influential literary movement in England and America during the first half of the twentieth century. It had works such as The WasteRead MoreThe Bauhaus : Art Education By Influencing Graphic, Interior, And Typography Design1096 Words   |  5 PagesThe Bauhaus affected art education by influencing graphic, interior, and typography design. It is said that it inspired the rise of many other art schools. In this paper there will be specific information discussed to help each reader in understanding the history of the Bauhaus. Let’s start with a little bit of the back-story of the Bauhaus and its founder Walter Gropius. In 1919 the Bauhaus, a German word meaning house of building, was a school founded in Weimar, Germany by architect WalterRead MoreThe New Negro Of The Harlem Renaissance879 Words   |  4 PagesThe New Negro Movement, also known as The Harlem Renaissance, was a time in the early twentieth century where African Americans embraced literatur e, music, theatre, and visual arts (Alchin). They were inspired and gave inspiration to many blacks in the community. The Great Migration was the beginning of the Harlem Renaissance – it is, where it began the most significant movement in the black history. After World War I, â€Å"more than six million African Americans† traveled from â€Å"the rural South to theRead MoreThe Diversity Of Art Development1689 Words   |  7 PagesThe Diversity of Art Development: An Analysis of WWI’s Contribution â€Å"World War I was not inevitable, as many historians say. It could have been avoided, and it was a diplomatically botched negotiation,† once said Richard Holbrooke, an American diplomat. Many people worldwide agree with Mr. Holbrooke, believing WWI to be a waste of human lives. Known for its ridiculous start fueled by the assassination of Archduke Ferdinand, its huge impact on numerous countries earned it the title of the Great WarRead More Appropriation of Images in Art Essay717 Words   |  3 Pages The appropriation of images in art is a phenomenon new to the twentieth century. Found objects, contemporary images, and images from the past are all appropriated by artists and used in their work. Three twentieth century artists, Marcel Duchamp, Andy Warhol and Robert Rauschenburg are all very influential and appropriators. Although these artists appropriated many different images for many different reasons there is one image that they all have in common, the Mona Lisa. Each of these artistsRead MoreWorld War I Was Not Inevitable1681 Words   |  7 Pages such as its art. Not only were new movements created, but also new styles of existing forms of art resulted from the war. Because of the different ways that art developed both on and off of the battlefield during the Great War, WWI is one of the most influential wars on the development of art in the twentieth century. Art in World War I was observed in many forms, from photography to art movements on the home fronts of many countries. What many people did not realize is that art was also used

Nanotechnology Free Essays

Nanotechnology does not have to be as small as atoms or molecules, but it is much smaller than anything you can see with your naked eye. Many materials exhibit unusual and useful properties when their size is reduced. Researchers who try to understand the fundamentals of these size-dependent properties call their work nanoscience, while those focusing on how to effectively use the properties call their work nanoengineering. We will write a custom essay sample on Nanotechnology or any similar topic only for you Order Now Nanoscale Nanometer How do we measure the size of nanotechnology materials? We measure materials using the nanoscale. While not precisely defined, the nanoscale ranges from about 1 nanometer (nm) to 100 nanometers. From things the size of individual atoms on the smallest to what you might see with very good optical microscope at the largest size. A nanometer is one billionth of a meter. (A meter is about 10% longer than a yard. ) The prefix â€Å"nano† means â€Å"one billionth†, or 10-9, in the international system for units of weights and measure. A sheet of paper is about 100,000 nanometers thick; a single gold atom is about a third or a nanometer in diameter. Nanomaterials By nanomaterials is a term that refers to all nanosized materials. When particles are purposefully manufactured with nanoscale dimensions, we call them engineered nanoparticles. There are two other ways nanoparticles are formed. Nanoparticles can occur as a byproduct of combustion, industrial manufacturing, and other human activities; these are known as incidental nanoparticles. Natural processes, such as sea spray and erosion, can also create nanoparticles. Many important functions of living organisms take place at the nanoscale. The human body uses natural nanoscale materials, such as proteins and other molecules, to control the body’s many systems and processes. A typical protein such as hemoglobin, which carries oxygen through the bloodstream, is 5 nms in diameter. Nanoparticles, Nanotubes, Nanofilms Think of these simply as particles, tubes, and films that have one or more nanosized dimension. Nanoparticles are bits of a material in which all three dimensions of the particle are within the nanoscale. Nanotubes have a diameter that’s nanosize, but can be several hundred nanometers (nm) long or even longer. Nanofilms or nanoplates have a thickness that’s nanosize, but their other two dimensions can be quite large. How to cite Nanotechnology, Essay examples Nanotechnology Free Essays Nanotechnology is a new multidisciplinary science interfering with many research areas and aspects. This technology deals with so small particles ranges from 1 to 100 nm (Birla et al., 2009; Husseiny et al. We will write a custom essay sample on Nanotechnology or any similar topic only for you Order Now , 2015). Nanoparticles of some metals like Au, Ag, Pt and Cu have paid more attention because of their biotechnological benefits (Rai and Duran, 2011). Research revealed the multiapplication of nanoparticle due to their unique properties in electronics, medicine, agriculture, pharmaceutic and environment (Nanda and Majeed, 2014; Dasgupta et al., 2015). Metal nanoparticles emerged as an alternative variety of antibacterial agents against strains of high resistance to the classical antibiotics (Naseem and Farrukh, 2015). Nanoparticles were used as antiviral agents (Gaikwad et al., 2013), effective antibacterial (Singh et al., 2013), cancer cells and antitumor (Daenen et al., 2014). Many researches have been directed to apply the nanoparticles of metals as anthelmintic (Garga and Chandrab, 2012), antifungal (Kim et al., 2012), antiprotozoal (Said et al., 2012), , acaricidal (Marimuthu et al., 2013) and larvicidal (Muthukumaran et al., 2015). Nanoparticles have many chemical and physical characteristics that differ from the metallic particles. Specific characteristics of nanoparticles such as their optical, physicochemical, mechanical properties make them crucial in many applications. Therefore, nanoparticles could be the key factor for the future technologies. Scientific as well as public associations are paying their attention for nanoparticles technology as a good investment source. Nanoparticles could be produced via physical, chemical or biological methods (Haider and Kang, 2015; Ebrahiminezhad et al., 2017). Both chemical and physical methods use reducing agents such as sodium borohydride, sodium citrate and alcohols (Rai and Duran, 2011). However, using of microorganisms in synthesis of nanoparticles represents another great achievement because of the economic and ease production (Shelar and Chavan, 2014; Patel et al., 2015). Research revealed that biological methods is an inexpensive and eco-friendly way for synthesis of nanoparticles. This method used biological agents including bacteria, fungi, yeast and plants (Mourato et al., 2011). Recently, emerging such microorganisms as eco-friendly nano-factories to manufacture inorganic nanoparticles was attractive (Lee et al., 2004; Lengke et al., 2007). Fungi were mentioned as excellent candidates for metal nanoparticle synthesis because they contain many of enzymes that induce the production (Sastry et al., 2003). It was assumed that the mechanism involved in nanoparticles production by fungi was due to cell wall sugars that could reduce the metal ions (Mukherjee et al., 2002) and because they have the high cell wall binding capacity, metal uptake and secrete more amounts of proteins lead to the higher productivity of nanoparticles (Vahabi et al., 2011). Fungi have some advantages over the other microorganisms regarding the synthesis of NPs, because fungal mycelia are able to resist pressure, high temperature and easy storage in the laboratory (Kiran et al., 2016). There are many of metals for biosynthesis (NPs) such as copper, zinc, iron, iron trichloride, lead carbonate, gold and silver (Siddiqi and Husen, 2016). In addition, silver NPs could be synthesized by fungi either intracellularly or extracellularly but the extracellular biosynthesis downstream process much easier and showed more activities against many pathogens (Ahmad et al., 2003). Among the active fungi that were reported to produce nanoparticles; Rhizopous oryzae produced nanoparticles intracellularly of gold (Das et al., 2012), Verticillium sp extracellularly peodcued gold and silver nanoparticles (Soni and Prakash, 2014) in the size range of 20–51 nm. However, F. oxysporum produced nanoparticles of silver of 5–15 nm and 8-14 nm in diameter extracellularly (Ahmad et al., 2003; Senapati et al., 2005). Many other fungi were approved for their productivity of nanoparticles of different metals either extracellularly or intracellularly including: Phoma sp. (Chen et al., 2003), the endophytic fungus Colletotrichum sp. (Shankar et al., 2003), Aspergillus fumigatus (Kuber and D’Souza, 2006) , Fusarium acuminatum (Ingle et al., 2008) , Trichoderma asperellum (Mukherjee et al., 2008), F. semitectum (Sawle et al., 2008), Phoma glomerate (Birla et al. 2009), F. solani (Ingle et al., 2009) , plant pathogenic fungi Aspergillus niger (Gade et al., 2008; Jaidev and Narasimha, 2010), Aspergillus flavus (Vigneshwaran et al., 2007; Jain et al., 2011) , Paecilomyces lilacinus (Devi and Joshi, 2012), endophytic fungus Pencillium sp. (Singh et al., 2013), Aspergillus foetidus (Roy and Das, 2014), Rhizopus stolonifer (AbdelRahim et al., 2017), Penicillium Oxalicum (Bhattacharjee et al., 2017) and Trichoderma atroviride (Saravanakumar and Wang, 2018). Many recent reports have shown that production of nanoparticles by fungi are could be affected by various condition of temperature, biomass weight, time and pH ( Balakumaran et al., 2016; Liang et al., 2017; Othman et al., 2017). Husseiny et al. (2015) reported that most important factors that were affecting the biosynthesis of AgNPs were the temperature, pH, time, the concentration of AgNO3 and amount biomass. Narayanan and Sakthivel (2010) approved that incubation at 27 0C for 72 h with 7 pH and 10 g of the fungal biomass and 1mM concentration of AgNPs were considered the optimum conditions for production of AgNPs from AgNO3 by fungi. Researches showed some variations in the characteristics of the biosynthesized AgNPs by different fungal species. These variations could be due to the source of fungal isolates or strains and types of medium (Devi and Joshi, 2012; Roy and Das, 2014). When Alam et al. (2017) compared the different types of media, they found Czapex dox broth was a good medium to produce enough mycelial biomass to synthesize AgNPs. This because this medium contains essential carbon and nitrogen source along with other vital macro and micronutrients such as magnesium, sodium, calcium, potassium, iron and zinc which are vital for fungal growth.Nowadays, application of AgNPs confirmed their effectiveness in treatment of cancer, bone implant, anti-inflammatory and their biocidal activity against many bacteria and pathogens (Husseiny et al., 2015; Majeed et al., 2016). The antibacterial properties of AgNPs are due to the oxidation and liberation of Ag+ ions into the environment that makes it an ideal biocidal agent (Sivakumar et al., 2015). It is expected that the large surface area to volume ratio as well as high fraction of the surface atoms of the nanoparticles increase their antimicrobial activity as compared with bulk silver metal (Joy and Johnson, 2015). Moreover, the small size of the nanoparticles facilitates their penetration inside the cell. Additionally, excellent antibacterial properties exhibited by AgNPs are due to their well-developed surface which provides maximum contact with the environment (Mitiku and Yilma, 2017). Recent research approved the antibacterial activity of the silver nanoparticles against many bacteria especially those having the capability to cause severe disease for the human such as Salmonella enterica, Enterococcus faecalis, Streptococcus, Proteus mirabilis, Staphylococcus aureus, Escherichia coli, Staphylococci and Pseudomonas sp (Devi and Joshi, 2012; Shelar and Chavan, 2014; Muhsin and Hachim, 2016; Madakka et al., 2018; Saravanakumar and Wang, 2018). However, shape, dimension, and the exterior charge as well as the concentration of the AgNPs are important factors that affect the antimicrobial activity the nanoparticles against the tested bacteria (Madakka et al., 2018). Devi and Joshi (2012) approved the antibacterial activity of AgNPs comparing with erythromycin, methicillin, chloramphenicol and ciprofloxacin agents Staphylococcus aureus, Streptococcus pyogenes, Salmonella enterica and Enterococcus faecalis. They showed that the diameter of inhibition zones obtained by the silver-nanoparticles, with 5-50 nm in diameter, were more than those obtained by the antibiotics. Shelar and Chavan, (2014) showed that Bacillus subtilis and Staphylococcus sp were inhibited by silver nanoparticles with diameter of 17-32 nm in very close pattern to the standard antibiotic streptomycin. Muhsin and Hachim (2016) reported the best concentration of silver nanoparticles with diameter 8-90 nm that showed strong antibacterial activity against Escherichia coli, Proteus mirabilis, Pseudomonas aeruginosa, Salmonella typhi and Staphylococcus aureus streptomycin was 100  µl/ ml. Based on the above-mentioned information, we assume that fungi as bio-factories for the biogenic synthesis of the silver nanoparticles are very interesting during eco-friendly and safe technology, also for future application as antimicrobial agents. How to cite Nanotechnology, Papers

Pain Management and Quality of Life for Sickle Cell Disease Patients Essay Example

Pain Management and Quality of Life for Sickle Cell Disease Patients Essay Pain Management and Quality of Life for Sickle Cell Disease Patients Cynthia Evans Mississippi College Pain Management and Quality of Life for Sickle Cell Disease Patients This is a review of literature examining how frequent recurring episodes of pain affect the quality of life in the sickle cell disease patients. Several studies conducted concerning pain management and quality of life for sickle cell disease patients indicate additional studies needed. Identifying additional effective complementary alternate therapies is vital for a more improved quality of life. This will be necessary in order to reduce the number of painful episodes experienced by the sickle cell patient. Sickle cell disease is a genetic disorder of the red blood cells and further characterized by painful acute vaso-occlusive episodes where the sickle cell is stuck in the blood vessels, blocking the blood flow. This is one of the most common reasons leading up to hospitalization, the vaso-occlusive episodes. These episodes can lead to ischemia and infarctions over the entire body region with painful recurring, unpredictable, intense, and relentless episodes, lasting approximately 3-14 days (Yaster, Kost-Byerly, Maxwell, 2000). According to Granados and Jacob (2009), the purpose of their study was to examine pain experienced and the effectiveness of analgesics for hospitalized adults with sickle cell disease. The literature review indicates a variety of reasons why inadequate pain management is ongoing in the adult (SCD) patients admitted with vaso-occlusive episodes. We will write a custom essay sample on Pain Management and Quality of Life for Sickle Cell Disease Patients specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Pain Management and Quality of Life for Sickle Cell Disease Patients specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Pain Management and Quality of Life for Sickle Cell Disease Patients specifically for you FOR ONLY $16.38 $13.9/page Hire Writer The focus is mainly on factors that affect the management of pain, including methods of analgesic administration, and non-pharmacologic regimens, therefore the perception of the provider is important in regards to treating sickle cell pain as identified in the study by (Shapiro, Benjamin, Payne Heidrich, 1997; Steinberg, 1999; Yale et al. , 2000). Little attention in the way of research studies has been examined in relation to the pain experience of the sickle cell adults. Ballas and Lusardi (2005) evaluated the sequence of hospital admissions of patients with sickle cell disease, reviewing the causes of recurring admissions, and the importance of the patient’s outcome of illness. All readmissions examined specifically within seven to thirty days from the initial admission discharge assessing for the rationale of the recurrence of hospital admission and relation to the prognosis of the sickle cell disease patient. The researchers evaluated the pain by a descriptive underlying research design knowledgeable by the sickle cell disease patients for intensity, location, and quality of pain. Fifty percent of patients admitted for intense painful episodes were readmitted within one month after discharge, and another estimated 16% were readmitted within one week after discharge. Severe pain is described as a degree of pain greater than six on a zero to ten numerical rating scales. A mean score of seven or greater indicates prematurity in discharging the sickle cell disease patients from the hospital. In conclusion, the patients admitted to the hospital with high pain scores were more likely to have lengthy hospitalizations, and to be discharged home with equally higher pain scores. The pain intensity scores from the previous discharge examined by the researchers indicated 71 readmission, in which 52 patients were readmitted for vaso-occlusive episodes, (Ballas Lusardi, 2005). The pain score of study participants indicated a high pain intensity score, and the scores did not change consequently during prolonged episodes. Even higher pain intensity more so on days seven and eight were indicated for increase pain significance. Researchers further indicated that the main reason for hospital readmissions were early discharge to home settings, signs and symptoms of medication/drug withdrawal, that brought about the intense reoccurring episodes of vaso-occlusive illnesses. It was noted that readmissions to the hospital for the adult sickle cell disease patient is more common and researchers recommended future studies for improvement in pain management in the hospital and at home. In future studies, researchers will need to use a larger sample size to evaluate patterns of pain management, effectiveness and influence on quality of life in the sickle cell disease patient. Although, no evidence was identified where upward titration of analgesics was done it is recommended that development of algorithms be encouraged to help carefully plan decisions regarding titration of medications in adult patients with sickle cell disease during hospitalizations. Jiles and Morris, (2008) made known in their descriptive study of 62 patients (18 years of age and older) using Burckhardt and Anderson’s 16 item self-report and a demographic uestionnaire used for data collection. The purpose of the study was to investigate the quality of life in adults with sickle cell anemia, hemoglobin SC, or Hemoglobin S beta thalassemia. The results revealed that the healthy populations average scores for quality of life scale is 90 and in this study the overall mean QOL score was 83. 6 ( SD=13. 2) lower than those of the overall general population. The outcome of this study indicated additional research is necessary to advance the understanding of the factors that greatly affect quality of life in the management of sickle cell disease in order for patients to enjoy normal activities of life. A cross sectional descriptive study conducted by Yoon and Black (2006) researched both pharmacologic and complementary therapies used for pain management by caregivers of children with sickle cell disease (SCD). They further studied the prevalence and types of complementary therapies used for pain management by caregivers of children with SCD and made inquiries of caregivers’ concerning their interests in using complementary therapies in the future. Since there was no obtainable questionnaire to meet the principle of the study, a questionnaire was created by the chief researcher. Items included on the questionnaire was age of child, age of caregiver, use of analgesic, annual income estimate, caregivers educational level, and type of health insurance their child had available. Divisions were randomly ordered and included massage, chiropractic, acupuncture, energy healing, relaxation techniques, imagery, meditation, hypnosis, biofeedback, self-prayer, spiritual healing by others, music therapy, herbal or fold remedies, megavitiamins, yoga, tai chi and other body works, and transcutaneous electrical nerve stimulation. The prospective patients were identified, approached, and invited to participate in the study by the clinical coordinator of the sickle cell disease clinic. The study was explained and potential participants were provided an informed consent letter. All subjects were provided a room for privacy and questionnaires were completed either by the caregivers of the participants or by the research assistance. The research assistant was nearby in either case to answer any questions that might arise by the caregivers when completing his/her form. The instructions provided to the caregivers indicated the questionnaires listing of the sixteen complementary therapies. The caregivers were to indicate any usage of them within the last six months and were asked would they be interested in using any of the listed complementary therapies in the future. Statistical analyses was used including how often an event repeats itself over a set amount of time and expected values with standard deviations, were used to compare demographic variables, research use of pharmacological therapies for pain management between age groups, and evaluate pharmacologic/analgesic and complementary therapy use. Chi-square tests were done in the beginning of the study and carried through to completion comparing the demographic variables, scrutinized use of pharmacologic therapies for pain management between age groups, and compared use of pharmacologic and complementary therapies. The results of the most frequently used pain medication for children revealed a mean age of 9 years. The results indicated children using pain medications most frequently identified was ibuprofen (37. 5%), acetaminophen with codeine (32. 1%), and acetaminophen with oxycodone (14. 5%). Complementary and alternative medicine use among children as well as adults has increased in the last ten years. In the study, caregivers with a mean age of 33 years was 70% of the 63 caregivers identified as using some form of complementary therapy. African American mothers made up 79% of the predominant race of caregivers and (56. 9%) indicated an annual income less than $20,000. Sixty percent of caregivers had twelve years of education or less, and twenty-four percent reported at least 2 years of college education. Medicaid (76%) was the major source of coverage for the children, although 24% had private or other identifying insurance. Future studies should include investigating the safety and effectiveness of the most commonly used complementary therapies reported in this study as well as recognizing possible ways complementary and alternative medicine (CAM) may be used effectively with pharmacologic therapies for pain management in children with Sickle cell disease in order to offer greater longevity and overall improved quality of life. Yoon and Black (2006), Jiles and Morris (2008) and Granados and Jacob (2009) all indicate the need for future studies in management of pain in the sickle cell disease patients. All studies indicate that the genetic disorder most commonly found in the African- American affects approximately 70,000 in the United States. This genetic disorder affects the red blood cells causing a stasis of sickle shaped erythrocytes, in which occlusion of the cells microcirculation, causing ischemia, and infarction. These recurring, unpredictable, intensified, and persistent painful episodes prevent stability and overall quality of life in the sickle cell disease patient and all authors indicate the need for future studies. The purpose of this review of literature is to identify all of the effective therapies of pain management for sickle cell disease patients. Whether the therapies used are complementary or alternative therapies vs. analgesic regimens. There must be future studies to seek out the answers for improved methods of pain treatment in order to improve the quality of life for the patients with sickle cell disease to exceed living past the age of forty-two with an increased zest and quality of life. References Granados, R. , Jacob, E. , (2009, May/June). Pain Experience in Hospitalized Adults with Sickle Cell Disease. Medsurg Nursing, 18 (3), 161-167,182. Jiles, V. M. , Morris, D. L. , (2009). Quality of Life of adult patients with sickle cell disease. Journal of the American Academy of Nurse Practitioners, Volume 21, 340-349. doi: 10. 1111/j. 1745-7599. 2009. 00416x Yoon, S. L. , Black, S. , (2006) Comprehensive, Integrative Management of Pain for Patients with Sickle-Cell Disease. The Journal of Alternative and Complementary Medicine, Volume 12, Number 10, pp. 995-1001.

Calculate Energy Required to Turn Ice Into Steam

Calculate Energy Required to Turn Ice Into Steam This worked example problem demonstrates how to calculate the energy required to raise the temperature of a sample that includes changes in phase. This problem finds the energy required to turn cold ice into hot steam. Ice to Steam Energy Problem What is the heat in Joules required to convert 25 grams of -10  °C ice into 150  °C steam?Useful information:heat of fusion of water 334 J/gheat of vaporization of water 2257 J/gspecific heat of ice 2.09 J/g ·Ã‚ °Cspecific heat of water 4.18 J/g ·Ã‚ °Cspecific heat of steam 2.09 J/g ·Ã‚ °CSolution:The total energy required is the sum of the energy to heat the -10  °C ice to 0  °C ice, melting the 0  °C ice into 0  °C water, heating the water to 100  °C, converting 100  °C water to 100  °C steam and heating the steam to 150  °C. To get the final value, first calculate the individual energy values and then add them up.Step 1: Heat required to raise the temperature of ice from -10  °C to 0  °C Use the formulaq mcΔTwhereq heat energym massc specific heatΔT change in temperatureq (25 g)x(2.09 J/g ·Ã‚ °C)[(0  °C - -10  °C)]q (25 g)x(2.09 J/g ·Ã‚ °C)x(10  °C)q 522.5 JHeat required to raise the temperature of ice from -10  °C to 0  °C 522.5 JStep 2: Heat required to convert 0  °C ice to 0  °C waterUse the formula for heat:q m ·ÃŽâ€Hfwhereq heat energym massΔHf heat of fusionq (25 g)x(334 J/g)q 8350 JHeat required to convert 0  °C ice to 0  °C water 8350 JStep 3: Heat required to raise the temperature of 0  °C water to 100  °C waterq mcΔTq (25 g)x(4.18 J/g ·Ã‚ °C)[(100  °C - 0  °C)]q (25 g)x(4.18 J/g ·Ã‚ °C)x(100  °C)q 10450 JHeat required to raise the temperature of 0  °C water to 100  °C water 10450 JStep 4: Heat required to convert 100  °C water to 100  °C steamq m ·ÃŽâ€Hvwhereq heat energym massΔHv heat of vaporizationq (25 g)x(2257 J/g)q 56425 JHeat required to convert 100  °C water to 100  °C steam 56425Step 5: Heat required to convert 100  °C steam to 150  °C steamq mcΔTq (25 g)x(2.09 J/g ·Ã‚ °C)[(150  °C - 100  °C)]q (25 g)x(2.09 J/g ·Ã‚ °C)x(50  °C)q 2612.5 JHeat required to convert 100  °C steam to 150  °C steam 2612.5Step 6: Find total heat energyHeatTotal HeatStep 1 HeatStep 2 HeatStep 3 HeatStep 4 HeatStep 5HeatTotal 522.5 J 8350 J 10450 J 56425 J 2612.5 JHeatTotal 78360 JAnswer:The heat required to convert 25 grams of -10  °C ice into 150  °C steam is 78360 J or 78.36 kJ.

The History of Scissors

The History of Scissors Leonardo da  Vinci has often been credited with inventing scissors, but they predate his lifetime by many centuries. Nowadays, it’s hard to find a household these days that doesn’t have at least one pair. Ancient Scissors The ancient Egyptians used a version of scissors as long ago as 1500 B.C. They were a single piece of metal, typically bronze, fashioned into two blades that were controlled by a metal strip. The strip kept the blades apart until they were squeezed. Each blade was a scissor. Collectively, the blades were scissors, or so rumor has it. Through trade and adventure, the device eventually spread beyond Egypt to other parts of the world. The Romans adapted the Egyptians  design in 100 A.D., creating pivoted or cross-blade scissors that were more in line with what we have today. The Romans also used bronze, but they sometimes made their scissors from iron as well. Roman scissors had two blades that slid past each other. The pivot was situated between the tip and the handles to create a cutting effect between the two blades when they were applied to various properties.  Both Egyptian and Roman versions of scissors had to be sharpened regularly. Scissors Enter the 18th Century Although the actual inventor of scissors is hard to identify, Robert Hinchliffe, of Sheffield, England, should be rightfully acknowledged as the father of modern scissors. He was the first to use steel to manufacture and mass-produce them in 1761 more than 200 years after da  Vinci’s death. Pinking shears  were first invented and patented in 1893 by Louise Austin of Whatcom of Washington to facilitate pinking and scalloping and as a marked improvement over ordinary pinking irons and tools.† Here are some mentions of scissors in print publications over the years, as well as a bit of folklore. From Emar, Capital of Astata, in the 14th  Century BCE By Jean-Claude Margueron Besides ceramics, occasionally collected in large quantities, the houses produced stone and metallic objects illustrating both day-to-day needs and the activities of city merchants: beer filters,  containers, arrow and javelin heads, scales of armor, needles and  scissors,  long nails,  bronze scrapers, millstones, mortars, many kinds of grindstones, pestles, various tools and stone rings. From  The Story of Scissors  by J. Wiss Sons, 1948 Egyptian bronze shears of the Third Century B.C., a unique object of art.  Showing Greek influence although with decoration characteristic of Nile culture, the shears are illustrative of the high degree of craftsmanship which developed in the period following Alexanders conquest of Egypt.  Decorative male and female figures, which complement each other on each blade, are formed by solid pieces of metal of a different color inlaid in the bronze shears.Sir Flinders Petrie ascribes the development of cross-bladed shears to the First Century. In the Fifth Century, the scribe Isidore of Seville  describes cross-bladed shears or scissors with a center pivot as tools of the barber and tailor. Folklore and Superstition More than one expectant mother has placed a pair of scissors beneath her pillow at night somewhere toward the end of her ninth month of pregnancy. Superstition says that this will â€Å"cut the cord† with her baby and prompt labor. And heres another tall tale: Don’t hand those scissors to your best friend. Place them on any available surface and let your friend pick them up. Otherwise, you risk severing your relationship. Some say that those scissors languishing in your catch-it-all drawer can help keep evil spirits out of your home. Hang them by one handle near your door so they form a version of a cross.

Class Project Survey Research Paper Example | Topics and Well Written Essays - 500 words

Class Project Survey - Research Paper Example due to changing global climate. Sea level is also increasing and we are now exposed to the threat that a substantial portion of US Gulf Coast along with Eastern Seaboard. We are also breathing polluted air as many more countries across the world are being highly industrialized, and hence, proportion of hazardous gases including CO2 in the air has increased significantly. (McKay, 403) 1. B) How do forces outside of the US impact your job prospects? Our job prospects are not only affected by internal economic situations, but also by factors that are external to the economy of US. First, opportunities of jobs in the countries outside the US have decreased significantly due to the recent global financial crisis. And second, the extent of outsourcing has been increasing day by day on account increased availability of cheap labor from countries like India, Kenya, (McKay, 385-387) Philippines, and other developing countries. 1. C) How do forces outside of the US impact your physical safety? The physical safety of US citizens is continuously being threatened by terrorists groups of Islamic regions of the world. The event of 9/11 showcased how powerful the Islamic terrorist groups have become. Although, the US government has taken excellent security measures, but we still do not feel fully secured. (McKay, 283) 1.

Admin Law Essay Example | Topics and Well Written Essays - 2500 words

Admin Law - Essay Example tion that has taken over the function of the Spelsbury District Council has moved from the status of â€Å"state† to â€Å"person†, which are the only two groups in society that are assumed under the European Convention of Human Rights, which aims to protect the rights of â€Å"people† from the â€Å"state†. Thus, when a judicial review process is considered, the Spelsbury Council would clearly fall under the category of â€Å"state† and Tracy would be â€Å"person† whose rights have to be protected. However, since the limited liability1b aspects impart the status of personhood upon such corporations that enjoy its benefits, therefore the Directors of the new company would be absolved of responsibility for civil actions against them because the corporation itself would be considered a person, just like Tracy, thereby blurring the distinction that allows a judicial review process to proceed against a clearly defined public body. However, since the limited liability company has been set up to carry out a public function that was originally carried out by the Spelsbury District Council and for the benefit of the public, it is likely that the courts may be amenable on this aspect of the case and Tracy may be allowed to seek permission from the High Court to ask for a judicial review of the decision.2 Section 31 of the Supreme Court Act of 1981 governs the judicial review process in England, whereby the question of permission being granted by the High Court may be subject to whether the Court â€Å"†¦Ã¢â‚¬ ¦.considers that the applicant has a sufficient interest in the matter to which the application relates.†3 In the case of R v Inland Revenue Commission ex parte national Federation of Self Employed4 Lord Wilberforce set out three separate criteria on deciding whether sufficient interest exists and one of these was the relative positions of the defendant and the plaintiff and the nature of the breach that is alleged to have been committed. In this case, the decision has been