Friday, November 29, 2019

Jonathan Edwards Essays - Hell, Christian Eschatology,

Jonathan Edwards The Puritan man must tread lightly and avoid sins in order to enter the good graces of God. Otherwise, the undeserving man will plunge by God's own hand into the pits of hell. Mercy is not easy to come by and those sinners who are not embraced by the kingdom of Heaven will live in eternal, painful misery. Jonathan Edwards' sermon was obviously not intended to encourage his congregation, but to frighten them into good, pure submission. He sears his point onto their brains by using extensive figurative language, including multiple gothic metaphors and similes. For example, Edwards repeatedly preaches about how each man walks on God's thin hand, which is all that holds the man above the fiery lakes of Hell. If the man becomes or is a sinner, God releases the man into Hell, not because of His wrath, but because the man has chosen his own path by his sins. Edwards' God seems, in fact, to be somewhat indifferent towards the fate of each human and only releases or embraces the man when his actions warrant it. God plays no part in the fate of men. ?Your wickedness makes you as it were heavy as lead, and to tend downwards with great weight and pressure towards Hell.? Edwards implies that no matter how righteous or healthy a man is, wickedness counts for more in the eyes of an angry God. Each transgression adds weight to the sinner's shoulders, and when God releases the man to Hell's fiery depths, his good qualities weaken under the burden of the sins and can no longer hold him out of the pits of Hell. Edwards compares the fragility of a man's righteousness and the weight of his sins to a spider's web trying to hold up a heavy rock. Both are futile attempts that will only end in the rock's fast descent to the earth. Whatever the situation, no man wants to suffer the wrath of God. According to Edwards, ?the wrath of God is like great waters that are dammed for the present,? rising higher and higher until they are released and flow slowly over. As the water continues to fl ow, it becomes stronger and more powerful to the point where it overcomes the lives of men. However, until evil and wickedness surface in Puritan society, His vengeance remains trapped behind His hand, rising and gathering, much like the guilt of sinners. If God decides to release His floodgate, all dishonorable men will be swallowed by wrath and descend to fire and brimstone. Edwards reiterates that his God acts on whim, sometime merciful, sometimes cruel and pitiless. In fact, Edwards says, ?it is nothing but His mere pleasure that keeps you from being this moment swallowed up in everlasting destruction.? Not only do Edwards' uses of figurative language contribute to the black mood of his sermon, they enhance it. His sermon was meant to instill terror in the hearts of his congregation, and as he spoke of Hell, brimstone, and a merciless God, his audience could probably see the dark clouds of guilt above their heads. Edwards was a powerful, persuasive speaker, and each dark metapho r created fear that was great enough to convince his audience never stray off of the path to the gates of Heaven. The Puritans seemed to be greatly concerned with guilt and an entrance to Heaven, so Edwards stressed that mercy is hard to come by from a God who sees his creations only as worthless insects who are easily dropped into eternal misery. Most importantly, when the day of judgement actually arrives, many sinners will be left behind, or, as Edwards described it, dropped from the hand of God into Hell. In conclusion, the Puritans had a very thin line to walk between righteousness and wickedness, and it was necessary to tread on the line very lightly. Barely moving onto the evil side of this moral line could plunge a man into shame, possibly getting him shunned from both his village and the gates of Heaven. Jonathan Edwards knew exactly how to herd his frightened congregation onto the pure side of the imaginary line entirely through the use of black, horrific, figurative langu age. The

Monday, November 25, 2019

Essay on The History of Criminolgy

Essay on The History of Criminolgy Essay on The History of Criminolgy Essay on The History of CriminolgyThe topic selected for conducting a research is The History of Criminology. This topic has been selected to study because it is an interesting topic, which encompasses a variety of issues to be analyzed and discussed. The history of criminology stands for the history of science and practice, which plays a crucial role in the study of different aspects of criminology. The topic needs to be researched to better understand the nature of criminology and the functioning of criminologists in different periods of time.Moreover, the topic The History of Criminology needs to be researched to address a wide range of problems and challenges that exist in today’s field of criminology. In recent years, much has been done to conduct a research regarding the major causes and consequences of crime, but the origins of this type of research date back to the eighteenth- nineteenth centuries. According to Garland and Sparks (2000), â€Å"contemporary criminology inhabits a rapidly changing world†(p. 189). The character of criminology is changing because of considerable changes in social life and political, economic and cultural environments. These changes are reflected in â€Å"crime rates, crime policy and in the practices of policing, prevention and punishment† (Garland Sparks, 2000, p. 189).Analyzing the topic, it is necessary to refer to the major issues that should be discussed in the research. The history of criminology highlights the role of crime and punishment in modern society, identifying the nature of crime issues that are connected with the daily routines of people, their emotional and cultural lives. In general, the field of criminology requires a â€Å"sense of its own history† (Laub, 2004). It is necessary to develop and apply the key concepts of the life-course perspective to the development of criminology as an academic discipline. The research will be focused on analyzing criminology in the U.S. over the last 100 years. Special attention should be paid to the key life-course phases in the development of criminology, as well as to the major turning points in this field. The history of criminology can help to realize the ideas regarding crime issues.The intended outcome of the research should address a variety of problems and challenges that exists in our society today and affect criminology. According to researchers, â€Å"criminology, is its broadest sense, consists of our organized ways of thinking and talking about crime, criminals and crime control† (Garland Sparks, 2000, p. 192). The research will help to enhance understanding of contemporary criminology.The qualitative approach will be taken in conducting the research. The qualitative research approach requires the use of research questions as the basis of research. Thus, the actions will be aimed at setting the research questions and reviewing literature to find the answers to these questions, and providing long-t erm observation or participation in the real situations and settings. The two major research questions that will be discussed in the research include: â€Å"How the history of criminology can help to address the major problems and challenges in the field today?† and â€Å"Why the history of criminology is effective in the practices of policing, prevention and punishment?† The qualitative research approach will help to solve problems in the field of criminology based on new conclusions. Today criminologists and criminal justice historians effectively use the key findings from the history of criminology in their work, including the facts that prove the relationship between the past, present and future of criminology (Lawrence, 2012).

Friday, November 22, 2019

Application of 2D gas chromatography for environmental analysis

All these benefits make GC?GC in the toxic compounds involved in the determination of trace level environmental analysis of a very good tool in complex matrices. This paper summarizes some of the environmental analysis and review and monitoring of the GC?GC applications Introduction Many years of humans society development led to many of the world distribution of chemicals in the atmosphere, the Earth’s surface and land border. Many of these compounds are harmful to the world’s ecosystems and the people. Analysis of these compounds in the environment is important. When analytes have high vapor pressure, gas chromatography is the selection method. The main problem in the environmental analysis is to analyze the existence of material is usually very complex matrix trace. Result, a huge research work into the analysis of major environmental pollutants [1]. Methods used in environmental analysis is usually the same as in all aspects of practice. It includes sampling, sample preparation, separation and detection. All of these steps may benefit from change, it is usually the biggest limitations imposed by the separation step. In gas chromatography (GC) cases, the majority of environmental samples containing analyte and matrix components of many closely eluting peaks in a chromatographic dimension (1D) the maximum total capacity is greatly exceeded, and many coelutions and unresolved in the separation region was observed. This led to the analyte of interest and quantify the poor separation [1]. Poor resolution in the chromatographic analysis of sample preparation and detection of high demand for equipment placement. Expensive and labor-intensive sample preparation, and solvent waste may cause a lot of harmful to the environment. By microextraction method development, such as liquid-liquid microextraction (LLME) and solid phase microextraction (SPME) and non-dissolved sample introduction system (ie, direct thermal desorption), has the potential to greatly simplify the sample preparation process, without sacrificing sensitivity and selectivity [2-5]. On investigation, lack of resolution often means using mass spectrometry (MS), including high-resolution mass spectrometry (HRMS), in some cases, is necessary. Figure 1 illustrates the GC-MS encountered in the common problems [36]. In the analysis of food extracts commonly 1D-GC clinch with insecticides (Fig. 1b), trace interest (in this case chlorfenvinphos) coelute analyte and sample matrix is more abundant components. Results obtained for such compounds, mass spectrometry (Figure 1e) frequently contains compounds derived from fragments of interference, leading to poor matching and library mass spectrometry (Fig. 1d). MS overlap algorithm may greatly improve the quality of the information of coeluting peak, but they are not always successful, when the number of coelutions is high. Figure 1a shows, full 2D-GC (GC?GC) to increase space and improve the chromatographic separation of the resolution, resulting in the separation of analytes of interest (chlorfenvinphos) from coeluting compounds and matrix components. Result, improved the quality of the analyte mass (Fig. 1c), taking into account the proof of a more confident analysis of material (Figure 1d). It is possible that some coelutions exist; these may often solve efficiently overlap with the MS, leading to better results, while reducing the number of components when the coeluting. GC?GC separation with the increased power resulting in a successful demo nstration and quantification of analytes. Fig. 1 GC?GC–TOF MS versus 1D-GC–TOF MS for the analysis of a carrot extract. The highest-capacity problem in terms of conventional gas chromatography through multi-dimensional gas chromatography to cope (MDGC) implementation. In this method, one-dimensional (1D) chromatogram of a complex and unresolved part is subjected to the stationary phase coated with a second column separation of the other selectivity [1]. Although this method increases the 1D chromatographic part of the choice of chromatographic resolutions, this method with automation challenging, and only a few sample components can be adequately addressed. However, the many applications is good for the PCBs, pesticides and toxaphene analysis, among other things, the report with different degrees of success [6-12]. Overall, however, is the exact number of separation will be beneficial, if the entire sample is subjected to a separation in two dimensions. This became possible a comprehensive two-dimensional gas chromatography (GC?GC) in the introduction. Principle for Two-Dimensional Gas Chromatography (GC?GC) 2D-GC is a comprehensive method of fundamental solution to meet the highest capacity. A typical structure of GC?GC set in Figure 2. The basic structure of GC?GC using virtually is the same as the composition of 1D-GC. These include syringes, oven, columns and detectors. In a typical GC?GC system, using non-polar stationary phase coated with a thick coating of a long column was installed as the main column. The exports through a special interface or modem is connected to the entrance of the second dimension column coated with stationary phase of another selectivity. Modulator connected not only to primary and secondary column; its main role is repeated trapping of the effluent fractions from the first dimension and periodic injection of them to the form of narrow pulses separated into further chromatographic analysis. Because the operation of 2D-GC in the fast condition, the detector in the GC?GC selection is limited to those capable of fast data collection rate. For example, GC?GC de tector can include flame ionization detector (FID), electron capture detector (ECD), single atomic emission detector (AED), sulfur compounds optical detector (SCD), nitrogen photodetector compounds (NCD) and time of flight mass spectrometer (TOF MS). Fig. 2 A block diagram of a GC?GC system. Modulator is the important part of the instrument, because it guarantees the separation is comprehensive and multidimensional [13]. In 1991, the first implementation of the GC?GC, the field has witnessed a number of modulator design [14]. Initially, the use of thermal adjustment of the heat modulator was implemented; however, the modular cryogenic liquid (liquid carbon dioxide or nitrogen) is currently the main use. Modulator at low temperatures within the system, each design has its own distinct advantages and limitations, making it suitable for analysis of the specific type. For example, the analysis of water pollutants has been developed an interface [19], when the buildings, and an in-house applications modulator in the quantitative analysis of PAHs and PCBs has been described [15]. Then, the modulator of the different types of analyte in the analysis of organohalogenated been evaluated [16]. The implementation of GC?GC provides the following advantage to surpass the 1D separation method: improvement separation strength; improved sensitivities; and constructs or highly predetermined, stratography spectrum. In the environment analysis, GC?GC has the potential to improve the toxic compound through the separation from the coeluting analysis and the matrix component, increases the detection limit such chemical product and provides the ideal for the surveillance application the two-dimensional stratography spectrum which constructs. Finally, this possibly causes to reduce to the smallest sample preparation procedure, and reduces analysis time. Other applications are also possible. For example, recently, GC?GC the product estimate which divided into for the diesel oil hydrocarbon environment had used, was important affected many ecosystems [17] the oil leak. Application of GC?GC in Environmental Analysis Water and Sediment Analysis The water is the most basic material to the life in planet. In order to estimate that the tap water safety for human consumption, the rapid, precise and the accurate method needs to analysis the water. The sediment is also important for river and the lake; The analysis of water pollutant is time-consuming sample preparation, follows by GC-MS analyzes. In the initial period realized that GC?GC has the great potential improvement to analysis water and sediment. In its earliest applications in this region, GC?GC was explained possibly from the common matrix interference which is separating the BTEX (benzene, toluene, ethyl benzene and xylene) and methyl alcohol tert butyl ether (MTBE), when and SPME [18]. The separation strength of GC?GC is improved; MTBE and the benzene are the foundation line solution in the 2nd chromatograph analysis space. This research showed GC?GC has the great potential for water pollutant analysis by combination this technology with microextraction (head space SPME). Certain Earth’s freshwater body is polluted daily by petroleum and the oil contamination. In the 1970s, it is pays attention the petroleum sample stratography spectrum to exhibit a model, has not solved, foundation line which rises â€Å"hillock† [20]. Chromatogram is the complex part, including compound many different kinds, refers to â€Å"unsolution complex mixture† at present [21]. GC?GC-FID uses in analysis of two different freshwater sediments [21]. Observed the conventional sample preparation procedure, the author has used the superior resolution, and has constructed the chromatogram of sediment for UCM different levele by GC?GC. The chromatogram obtained for two samples provides by clue direction contamination important source researcher. , The research showed GC?GC the potential importantly in the environment law, for an environmental chemistry basic tool, environmental audit. The nonylphenol polyethylene ethoxides’ degenerated product, was possible feminine hormone splitter [22]. Increases the concern, NPs from the urban district [23] the water and the deposition present are found. GC?GC-TOF MS is the NP isomer separation from technical mixture [24] used. 41 components are identified. Figure 3 explanation GC?GC-TOF MS application to NP isomer respective ion trace analysis from identical research. Two NP stave products were explained that m/z 135 (chart 3a) and m/z 149 (chart 3b). Two chromatogram exhibition group type separation, emphasizes by the connection compound peak maximum value in the identical homologous family incline line. It from as a result of various NP isomer structure similarity, the complete separation is the very difficult this chart is obvious. However, other resolution strength by GC?GC provided â€Å"cleanly† the mass spectrum to provide, made the analysis proof to be easier. Fig. 3. Extracted ion GC?GC–TOF MS chromatograms of a technical nonylphenyl (NP) mixture GC?GC for to the environment pollutant’s analysis was recently the application current in oceanic deposit [25]. A qualitative method has developed, fast and is unified according to the tendency by the ultrasonic wave assistance’s extraction to the complex sample’s high resolution analysis provides to GC?GC-TOF UAE which is fast and high efficiency selective sampling pretreatment procedure is utilized solid sample [30]. A high efficiency and has the selective sample preparation method, when the powerful separation method GC?GC combine with UAE can causes 1500 kind of more than several not aromatic hydrocarbon (PAHs) the compound and the certificate resolution, NPs and dialkylated benzene. Once more, GC?GC not only ability from each other isolation analysis, and has proven from the sample matrix priceless. The carcinogen which and the mutagen suspected, PAHs is many industry activity by-product and the universal existence is distributed in the environment. Because it requests the hard sledding and has the selective sample preparation, they in the deposition sample’s trace determination are difficult. The improvement to complex matrix’s PAHs, the Cavagnino trace analysis with GC?GC-FID [large-volume splitless injection (LVSI) technology]. Sample complex which analyzes is many deposition sample representative who obtains from the river and the lake. Separated and investigates seven PAHs which diluted in the synthesis diesel oil to demonstrate the LVSI- GC?GC-FID potential achievement in the low ppb level for to trace amount analysis one powerful and the rapid tool in complex matrix PAHs. While, Ong. and so on has developed a PAHs rapid surveillance method probably in the soil sample, utilizes liquid extraction (PLE) – GC?GC-FID [27]. The current publishing work is merely GC?GC latent serviceable demonstration to deposition sample PAH analysis. In brief, with the resolution which improves, improvement many sensitivities and the stratography spectrum which orders, GC?GC may add on the result which effective and the rapid sample preparation method produces cannot be achieved by the routine analysis procedure. Analysis of PCBs, PCDDs and PCDFs Polychlorinated dibenzodioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and some polychlorinated biphenyl (PCB) congeners is dominated by bioaccumulation and biomagnification in the environment and thus is a dangerous The wildlife and people. Many are suspected carcinogens and induced changes of [28]. Of PCBs, dioxins and furans in the environment assessment of certain requirements of a method to isolate and quantify them in complex samples such as food, soil and water. GC?GC provides one advantageous method in complex matrix’s PCDDs and the PCDFs analysis. In its one of early experiments, a liquid crystal main column and a limitless secondary column (according to steam pressure separation) uses in (according to the planarity separation) separates the tone – and from technical mixture [30] non-straight PCB congeners. The connection GC?GC microelectron captures investigates (MECD) is toxic PCBs, PCDDs and the PCDFs determination is the application in the cod liver sample [29]. The analysis result showed all 12 priority PCB from liver sample congeners, and most toxic Dai Aoxin and fu nan the full separation and the proof nail fast with 90 PCBs and 17 contain poison PCDDs and PCDFs. Moreover, when compares with the standard sample preparation procedure, the liver sample pretreatment does not have the selectivity and reduces to is smallest. It has included the direct injection and fractionation followed cell degree of illness gradually dra ws back, the centrifuge process to enter GC?GC the system. Figure 4 showing from the 2nd stratography spectrum which obtains to the cod liver sample’s analysis. Recently, an item of multilaboratory research has been conducted in food sample, analyzes PCDD/Fs and World Health Organization PCBs through once more GC?GC-MECD and the GC-HRMS comparison and the explanation GC?GC great potential in the rapid surveillance application [31]. With the standard analysis method comparison GC?GC, GC?GC the performance is unified (GC?GC-ID-TOF MS) has to 13C mark isotopic dilution (ID) TOF MS conventional GC-HRMS to appraise [32]. Quantification 17 PCDD/Fs and four PCBs nail fast in the soil and in the deposition sample are two methods are comparable. However, GC?GC implementation request only smallest sample preparation, and causes the signal improvement (factor 5-10), superior resolution, lower instrumentation expense, and improved TOF the MS data [32] the ghost overlaps legitimately. As highest capacity which and resolution result increases, the unknown compound’s proof is possible. Fig. 4 GC?GC–ECD chromatogram of a cod liver sample spiked with 90 PCBs [29]. Pesticide Analysis Forms the challenge to the pesticide analysis to analyze the chemist to prepare about the sample to make the law and the chromatography. Is similar other toxic compound, the pesticide is usually distributed in the trace amount environment. Moreover, they are extreme complex matrix part of for example foods, the soil and the water sample. Needs to be like today presses to the rapid high resolution analysis method. GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33] the pesticide. To were few from the sharp person’s blood serum extraction’s 15 pesticide’s foundation line segments achieve in four minutes. Later, GC?GC-FID to estimate that the child pesticide exposure has been utilized through the use urine and the blood serum [34] low-power. This special example in were few showed 16 pesticide complete separations in four minutes. Recently, has been demonstrated including PCBs and the organic chlorine pesticide 59 organization pollutant’s proof and the quantification [35]. But GC?GC-ID-TOF MS completed the comparable result author who ran in standard routine analysis (GC-ID-TOFMS) to indicate that analyzed like this, three different injection needs . GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33]. Pesticide determination in food extract is similarly important. Separated using GC?GC-TOF MS and identifies 58 pesticides to nail fast completely on the vegetable was explained [36]. This completed with has been smallest and the non-selective sample preparation: The celery or the carrot sample and the sodium acetate and the ethyl acetate have chopped, mixed, was mixed, has been separated, and is dried. The extract is injected entered GC?GC [36]. Recently, separated 12 halogenate compound kind of groups five different GC?GC column combination to appraise, including PCBs, PCDDs, PCDFs, multi-chlorobenzene diphenyl ester (PCDEs), multi-chlorobenzene naphthalene (PCNs), multi-chlorobenzene dibenzothiophenes (PCDTs), multi-chlorobenzene terphenyl (PCTs), multi-chlorobenzene alkane (PCAs), toxaphene, multi-bromination biphenyl (PBBs), multi-bromination diphenyl ether (PBDEs) and organic chlorine pesticide (OCPs) [37]. Although this article focal point is the different compound kind of major group separates, was also explained in the family separation. When the separation and proof all 28 OCPs are pure pesticide mixture has only been demonstrated that majority has been separated fully, since, when injects along other 11 compound kind of [37]. Therefore, its as if that the column establishment which disposes appropriately with one, GC?GC may use takes mainly shields step for the environment sample contamination and along pollutant m any other kind of pesticides, with smallest sample preparation. Air Analysis Volatile organic compound (VOCs) in metropolis photochemical smog [38] the generation plays a strong character. The World Health Organization thought that possibly has to the air granular material’s exposition to the human health [39] the ill effect. But, uncertainty existence about from VOCs health effect in metropolis granular material (PM) [40]. Therefore, requests rapid, reliable and information method guarantee in air pollutant successful surveillance, proof and discovery. Many PAHs and PAHs (oxy-PAHs) which oxidizes is the carcinogen which and the mutagen suspected, with, therefore they are in the metropolis aerosol analysis profitable target analysis. GC?GC-FID and GC?GC four-pole MS (QMS) is applied permits from Finland about 1500 peaks goal PAHs [41] investigates in the metropolis air sample and the proof. But woman is unified the method for the compound proof and the quantification, used GC?GC-FID the combination to confirm the good reproducibility. 13 non-goal PAHs has been identified, and ten goal PAHs by quota. Found PAH centralism scope (0.5-5.5 ng/m3) with in Europe [41] other parts of standard methods obtained the result was comparable. The cigarette smoke is estimate extreme complex mixture component [43] which has not recognized including about 4,700 kind of identification’s compound and 100,000. GC?GC-TOFMS utilizes the solution approximately from the cigarette smoke [43] 30,000 peaks. After this, analyzes cigarette smoke condensate simpler sample determination neutrality score [44], basic score [45] and acidic score [46] chemical composition. Conventional GC-MS possible to separate 200 unknown peaks and identifies 115 hydrocarbons from the cigarette condensate limitless neutral scores; To identical sample GC?GC analysis, however, has achieved 4,000 kind of compound separations and 1,800 hydrocarbons [44] proved. In another research, GC?GC-TOF has identified 377 kind of nitrogen-containing compound to the cigarette condensate’s basic score’s MS analysis, in 155 is the pyridine derivative, 104 kinds kui lin or different kui lin derivative and 56 kind of pyrazine derivative [45]. Conclusions GC?GC has achieved the condition rapidly for to the volatile organic compound analysis most powerful tool. It appoints oneself achievement to be suitable completely for in the complex sample surveillance analysis technology. In the environment analyzed area, this includes PCBs by the analysis many example testimony to the common environment pollutant, PCDDs, PCDFs, PAHs and the pesticide in the complex environment matrix. Moreover, GC?GC has the potential to simplify the sample preparation procedure (even completely to eliminate them), when simultaneously causes when the shorter overall analysis time high resolution stratography spectrum. Regarding widely a new analysis method which adopts, not only it is certainly reliable and renewable, but it should also exhibit the significant advantage to surpass the method which accepts. The example reported the showing GC?GC method advantage in this review in the traditional 1DGC separation. In GC?GC historical first years period, the instrumentation development is the main focal point; However, from GC?GC system’s commercialization, the application quantity which reported greatly increases in the environment analysis and other scientific fields. Therefore, we may anticipate that the transition automation GC?GC is unified on-line sample which the correspondence uses to prepare gradually the equipment in the regular environmental monitoring. References 1. Marriott PJ. Haglund P, Ong RCY. Clin Chim Acta. 2003, 328:1–19. 2. Pawliszyn J. Solid phase microextraction, theory and practice. Wiley, New York. 1997. 3. Pawliszyn J. (1999) Applications of solid phase microextraction. Royal Society of Chemistry, Cambridge. 4. Dettmer K, Engewald W. Anal Bioanal Chem. 2002, 373: 490–500. 5. Butrym E. LC-GC. 1999, 17:S19–S24. 6. de Geus H-J, Wester PG, Schelvis A, de Boer J, Brinkman UATh. J Environ Monit. 2000, 2:503–511. 7. Mrowetz SHJ. J Chromatogr A. 1983, 279:173–187. 8. 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Health aspects of air pollution with particulate matter, ozone and nitrogen dioxide. World Health Organization, Bonn. 2003. 40. Welthagen W, Schnelle-Kreis J, Zimmermann R. J Chromatogr A. 2003, 1019:233–249. 41. Kallio M, Hyotilainen T, Lehtonen M, Jussila ML, Hartonen K, Shimmo M, Riekkola M-L. J Chromatogr A. 2003, 1019:251– 260. 42. Schnelle-Kreis J, Welthagen W, Sklorz M, Zimmermann R. J Sep Sci. 2005, 28:1648–1657. 43. Dalluge J, van Stee LLP, Xu X, Williams J, Beens J, Vreuls RJJ, Brinkman UATh. J Chromatogr A.2002, 974:169–184. 44. Lu X, Zhao M, Kong H, Cai J, Wu J, Wu M, Hua R, Liu J, Xu G. J Chromatogr A. 2004, 1043:265–273. 45. Lu X, Zhao M, Cai J, Kong H, Wu J, Wu M, Hua R, Liu J, Xu G. J Sep Sci. 2004, 27:101–109. 46. Lu X, Cai J, Zhao M, Kong H, Wu J, Wu M, Hua R, Liu J, Xu G. Anal Chem. 2004, 74:4441–4451. Application of 2D gas chromatography for environmental analysis All these benefits make GC?GC in the toxic compounds involved in the determination of trace level environmental analysis of a very good tool in complex matrices. This paper summarizes some of the environmental analysis and review and monitoring of the GC?GC applications Introduction Many years of humans society development led to many of the world distribution of chemicals in the atmosphere, the Earth’s surface and land border. Many of these compounds are harmful to the world’s ecosystems and the people. Analysis of these compounds in the environment is important. When analytes have high vapor pressure, gas chromatography is the selection method. The main problem in the environmental analysis is to analyze the existence of material is usually very complex matrix trace. Result, a huge research work into the analysis of major environmental pollutants [1]. Methods used in environmental analysis is usually the same as in all aspects of practice. It includes sampling, sample preparation, separation and detection. All of these steps may benefit from change, it is usually the biggest limitations imposed by the separation step. In gas chromatography (GC) cases, the majority of environmental samples containing analyte and matrix components of many closely eluting peaks in a chromatographic dimension (1D) the maximum total capacity is greatly exceeded, and many coelutions and unresolved in the separation region was observed. This led to the analyte of interest and quantify the poor separation [1]. Poor resolution in the chromatographic analysis of sample preparation and detection of high demand for equipment placement. Expensive and labor-intensive sample preparation, and solvent waste may cause a lot of harmful to the environment. By microextraction method development, such as liquid-liquid microextraction (LLME) and solid phase microextraction (SPME) and non-dissolved sample introduction system (ie, direct thermal desorption), has the potential to greatly simplify the sample preparation process, without sacrificing sensitivity and selectivity [2-5]. On investigation, lack of resolution often means using mass spectrometry (MS), including high-resolution mass spectrometry (HRMS), in some cases, is necessary. Figure 1 illustrates the GC-MS encountered in the common problems [36]. In the analysis of food extracts commonly 1D-GC clinch with insecticides (Fig. 1b), trace interest (in this case chlorfenvinphos) coelute analyte and sample matrix is more abundant components. Results obtained for such compounds, mass spectrometry (Figure 1e) frequently contains compounds derived from fragments of interference, leading to poor matching and library mass spectrometry (Fig. 1d). MS overlap algorithm may greatly improve the quality of the information of coeluting peak, but they are not always successful, when the number of coelutions is high. Figure 1a shows, full 2D-GC (GC?GC) to increase space and improve the chromatographic separation of the resolution, resulting in the separation of analytes of interest (chlorfenvinphos) from coeluting compounds and matrix components. Result, improved the quality of the analyte mass (Fig. 1c), taking into account the proof of a more confident analysis of material (Figure 1d). It is possible that some coelutions exist; these may often solve efficiently overlap with the MS, leading to better results, while reducing the number of components when the coeluting. GC?GC separation with the increased power resulting in a successful demo nstration and quantification of analytes. Fig. 1 GC?GC–TOF MS versus 1D-GC–TOF MS for the analysis of a carrot extract. The highest-capacity problem in terms of conventional gas chromatography through multi-dimensional gas chromatography to cope (MDGC) implementation. In this method, one-dimensional (1D) chromatogram of a complex and unresolved part is subjected to the stationary phase coated with a second column separation of the other selectivity [1]. Although this method increases the 1D chromatographic part of the choice of chromatographic resolutions, this method with automation challenging, and only a few sample components can be adequately addressed. However, the many applications is good for the PCBs, pesticides and toxaphene analysis, among other things, the report with different degrees of success [6-12]. Overall, however, is the exact number of separation will be beneficial, if the entire sample is subjected to a separation in two dimensions. This became possible a comprehensive two-dimensional gas chromatography (GC?GC) in the introduction. Principle for Two-Dimensional Gas Chromatography (GC?GC) 2D-GC is a comprehensive method of fundamental solution to meet the highest capacity. A typical structure of GC?GC set in Figure 2. The basic structure of GC?GC using virtually is the same as the composition of 1D-GC. These include syringes, oven, columns and detectors. In a typical GC?GC system, using non-polar stationary phase coated with a thick coating of a long column was installed as the main column. The exports through a special interface or modem is connected to the entrance of the second dimension column coated with stationary phase of another selectivity. Modulator connected not only to primary and secondary column; its main role is repeated trapping of the effluent fractions from the first dimension and periodic injection of them to the form of narrow pulses separated into further chromatographic analysis. Because the operation of 2D-GC in the fast condition, the detector in the GC?GC selection is limited to those capable of fast data collection rate. For example, GC?GC de tector can include flame ionization detector (FID), electron capture detector (ECD), single atomic emission detector (AED), sulfur compounds optical detector (SCD), nitrogen photodetector compounds (NCD) and time of flight mass spectrometer (TOF MS). Fig. 2 A block diagram of a GC?GC system. Modulator is the important part of the instrument, because it guarantees the separation is comprehensive and multidimensional [13]. In 1991, the first implementation of the GC?GC, the field has witnessed a number of modulator design [14]. Initially, the use of thermal adjustment of the heat modulator was implemented; however, the modular cryogenic liquid (liquid carbon dioxide or nitrogen) is currently the main use. Modulator at low temperatures within the system, each design has its own distinct advantages and limitations, making it suitable for analysis of the specific type. For example, the analysis of water pollutants has been developed an interface [19], when the buildings, and an in-house applications modulator in the quantitative analysis of PAHs and PCBs has been described [15]. Then, the modulator of the different types of analyte in the analysis of organohalogenated been evaluated [16]. The implementation of GC?GC provides the following advantage to surpass the 1D separation method: improvement separation strength; improved sensitivities; and constructs or highly predetermined, stratography spectrum. In the environment analysis, GC?GC has the potential to improve the toxic compound through the separation from the coeluting analysis and the matrix component, increases the detection limit such chemical product and provides the ideal for the surveillance application the two-dimensional stratography spectrum which constructs. Finally, this possibly causes to reduce to the smallest sample preparation procedure, and reduces analysis time. Other applications are also possible. For example, recently, GC?GC the product estimate which divided into for the diesel oil hydrocarbon environment had used, was important affected many ecosystems [17] the oil leak. Application of GC?GC in Environmental Analysis Water and Sediment Analysis The water is the most basic material to the life in planet. In order to estimate that the tap water safety for human consumption, the rapid, precise and the accurate method needs to analysis the water. The sediment is also important for river and the lake; The analysis of water pollutant is time-consuming sample preparation, follows by GC-MS analyzes. In the initial period realized that GC?GC has the great potential improvement to analysis water and sediment. In its earliest applications in this region, GC?GC was explained possibly from the common matrix interference which is separating the BTEX (benzene, toluene, ethyl benzene and xylene) and methyl alcohol tert butyl ether (MTBE), when and SPME [18]. The separation strength of GC?GC is improved; MTBE and the benzene are the foundation line solution in the 2nd chromatograph analysis space. This research showed GC?GC has the great potential for water pollutant analysis by combination this technology with microextraction (head space SPME). Certain Earth’s freshwater body is polluted daily by petroleum and the oil contamination. In the 1970s, it is pays attention the petroleum sample stratography spectrum to exhibit a model, has not solved, foundation line which rises â€Å"hillock† [20]. Chromatogram is the complex part, including compound many different kinds, refers to â€Å"unsolution complex mixture† at present [21]. GC?GC-FID uses in analysis of two different freshwater sediments [21]. Observed the conventional sample preparation procedure, the author has used the superior resolution, and has constructed the chromatogram of sediment for UCM different levele by GC?GC. The chromatogram obtained for two samples provides by clue direction contamination important source researcher. , The research showed GC?GC the potential importantly in the environment law, for an environmental chemistry basic tool, environmental audit. The nonylphenol polyethylene ethoxides’ degenerated product, was possible feminine hormone splitter [22]. Increases the concern, NPs from the urban district [23] the water and the deposition present are found. GC?GC-TOF MS is the NP isomer separation from technical mixture [24] used. 41 components are identified. Figure 3 explanation GC?GC-TOF MS application to NP isomer respective ion trace analysis from identical research. Two NP stave products were explained that m/z 135 (chart 3a) and m/z 149 (chart 3b). Two chromatogram exhibition group type separation, emphasizes by the connection compound peak maximum value in the identical homologous family incline line. It from as a result of various NP isomer structure similarity, the complete separation is the very difficult this chart is obvious. However, other resolution strength by GC?GC provided â€Å"cleanly† the mass spectrum to provide, made the analysis proof to be easier. Fig. 3. Extracted ion GC?GC–TOF MS chromatograms of a technical nonylphenyl (NP) mixture GC?GC for to the environment pollutant’s analysis was recently the application current in oceanic deposit [25]. A qualitative method has developed, fast and is unified according to the tendency by the ultrasonic wave assistance’s extraction to the complex sample’s high resolution analysis provides to GC?GC-TOF UAE which is fast and high efficiency selective sampling pretreatment procedure is utilized solid sample [30]. A high efficiency and has the selective sample preparation method, when the powerful separation method GC?GC combine with UAE can causes 1500 kind of more than several not aromatic hydrocarbon (PAHs) the compound and the certificate resolution, NPs and dialkylated benzene. Once more, GC?GC not only ability from each other isolation analysis, and has proven from the sample matrix priceless. The carcinogen which and the mutagen suspected, PAHs is many industry activity by-product and the universal existence is distributed in the environment. Because it requests the hard sledding and has the selective sample preparation, they in the deposition sample’s trace determination are difficult. The improvement to complex matrix’s PAHs, the Cavagnino trace analysis with GC?GC-FID [large-volume splitless injection (LVSI) technology]. Sample complex which analyzes is many deposition sample representative who obtains from the river and the lake. Separated and investigates seven PAHs which diluted in the synthesis diesel oil to demonstrate the LVSI- GC?GC-FID potential achievement in the low ppb level for to trace amount analysis one powerful and the rapid tool in complex matrix PAHs. While, Ong. and so on has developed a PAHs rapid surveillance method probably in the soil sample, utilizes liquid extraction (PLE) – GC?GC-FID [27]. The current publishing work is merely GC?GC latent serviceable demonstration to deposition sample PAH analysis. In brief, with the resolution which improves, improvement many sensitivities and the stratography spectrum which orders, GC?GC may add on the result which effective and the rapid sample preparation method produces cannot be achieved by the routine analysis procedure. Analysis of PCBs, PCDDs and PCDFs Polychlorinated dibenzodioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and some polychlorinated biphenyl (PCB) congeners is dominated by bioaccumulation and biomagnification in the environment and thus is a dangerous The wildlife and people. Many are suspected carcinogens and induced changes of [28]. Of PCBs, dioxins and furans in the environment assessment of certain requirements of a method to isolate and quantify them in complex samples such as food, soil and water. GC?GC provides one advantageous method in complex matrix’s PCDDs and the PCDFs analysis. In its one of early experiments, a liquid crystal main column and a limitless secondary column (according to steam pressure separation) uses in (according to the planarity separation) separates the tone – and from technical mixture [30] non-straight PCB congeners. The connection GC?GC microelectron captures investigates (MECD) is toxic PCBs, PCDDs and the PCDFs determination is the application in the cod liver sample [29]. The analysis result showed all 12 priority PCB from liver sample congeners, and most toxic Dai Aoxin and fu nan the full separation and the proof nail fast with 90 PCBs and 17 contain poison PCDDs and PCDFs. Moreover, when compares with the standard sample preparation procedure, the liver sample pretreatment does not have the selectivity and reduces to is smallest. It has included the direct injection and fractionation followed cell degree of illness gradually dra ws back, the centrifuge process to enter GC?GC the system. Figure 4 showing from the 2nd stratography spectrum which obtains to the cod liver sample’s analysis. Recently, an item of multilaboratory research has been conducted in food sample, analyzes PCDD/Fs and World Health Organization PCBs through once more GC?GC-MECD and the GC-HRMS comparison and the explanation GC?GC great potential in the rapid surveillance application [31]. With the standard analysis method comparison GC?GC, GC?GC the performance is unified (GC?GC-ID-TOF MS) has to 13C mark isotopic dilution (ID) TOF MS conventional GC-HRMS to appraise [32]. Quantification 17 PCDD/Fs and four PCBs nail fast in the soil and in the deposition sample are two methods are comparable. However, GC?GC implementation request only smallest sample preparation, and causes the signal improvement (factor 5-10), superior resolution, lower instrumentation expense, and improved TOF the MS data [32] the ghost overlaps legitimately. As highest capacity which and resolution result increases, the unknown compound’s proof is possible. Fig. 4 GC?GC–ECD chromatogram of a cod liver sample spiked with 90 PCBs [29]. Pesticide Analysis Forms the challenge to the pesticide analysis to analyze the chemist to prepare about the sample to make the law and the chromatography. Is similar other toxic compound, the pesticide is usually distributed in the trace amount environment. Moreover, they are extreme complex matrix part of for example foods, the soil and the water sample. Needs to be like today presses to the rapid high resolution analysis method. GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33] the pesticide. To were few from the sharp person’s blood serum extraction’s 15 pesticide’s foundation line segments achieve in four minutes. Later, GC?GC-FID to estimate that the child pesticide exposure has been utilized through the use urine and the blood serum [34] low-power. This special example in were few showed 16 pesticide complete separations in four minutes. Recently, has been demonstrated including PCBs and the organic chlorine pesticide 59 organization pollutant’s proof and the quantification [35]. But GC?GC-ID-TOF MS completed the comparable result author who ran in standard routine analysis (GC-ID-TOFMS) to indicate that analyzed like this, three different injection needs . GC?GC the application early showed the method potential regular implementation to the pesticide analysis in person’s organization in the future. Supercritical invariable extraction (SFE) with GC?GC-FID together utilizes the analysis in person’s blood serum [33]. Pesticide determination in food extract is similarly important. Separated using GC?GC-TOF MS and identifies 58 pesticides to nail fast completely on the vegetable was explained [36]. This completed with has been smallest and the non-selective sample preparation: The celery or the carrot sample and the sodium acetate and the ethyl acetate have chopped, mixed, was mixed, has been separated, and is dried. The extract is injected entered GC?GC [36]. Recently, separated 12 halogenate compound kind of groups five different GC?GC column combination to appraise, including PCBs, PCDDs, PCDFs, multi-chlorobenzene diphenyl ester (PCDEs), multi-chlorobenzene naphthalene (PCNs), multi-chlorobenzene dibenzothiophenes (PCDTs), multi-chlorobenzene terphenyl (PCTs), multi-chlorobenzene alkane (PCAs), toxaphene, multi-bromination biphenyl (PBBs), multi-bromination diphenyl ether (PBDEs) and organic chlorine pesticide (OCPs) [37]. Although this article focal point is the different compound kind of major group separates, was also explained in the family separation. When the separation and proof all 28 OCPs are pure pesticide mixture has only been demonstrated that majority has been separated fully, since, when injects along other 11 compound kind of [37]. Therefore, its as if that the column establishment which disposes appropriately with one, GC?GC may use takes mainly shields step for the environment sample contamination and along pollutant m any other kind of pesticides, with smallest sample preparation. Air Analysis Volatile organic compound (VOCs) in metropolis photochemical smog [38] the generation plays a strong character. The World Health Organization thought that possibly has to the air granular material’s exposition to the human health [39] the ill effect. But, uncertainty existence about from VOCs health effect in metropolis granular material (PM) [40]. Therefore, requests rapid, reliable and information method guarantee in air pollutant successful surveillance, proof and discovery. Many PAHs and PAHs (oxy-PAHs) which oxidizes is the carcinogen which and the mutagen suspected, with, therefore they are in the metropolis aerosol analysis profitable target analysis. GC?GC-FID and GC?GC four-pole MS (QMS) is applied permits from Finland about 1500 peaks goal PAHs [41] investigates in the metropolis air sample and the proof. But woman is unified the method for the compound proof and the quantification, used GC?GC-FID the combination to confirm the good reproducibility. 13 non-goal PAHs has been identified, and ten goal PAHs by quota. Found PAH centralism scope (0.5-5.5 ng/m3) with in Europe [41] other parts of standard methods obtained the result was comparable. The cigarette smoke is estimate extreme complex mixture component [43] which has not recognized including about 4,700 kind of identification’s compound and 100,000. GC?GC-TOFMS utilizes the solution approximately from the cigarette smoke [43] 30,000 peaks. After this, analyzes cigarette smoke condensate simpler sample determination neutrality score [44], basic score [45] and acidic score [46] chemical composition. Conventional GC-MS possible to separate 200 unknown peaks and identifies 115 hydrocarbons from the cigarette condensate limitless neutral scores; To identical sample GC?GC analysis, however, has achieved 4,000 kind of compound separations and 1,800 hydrocarbons [44] proved. In another research, GC?GC-TOF has identified 377 kind of nitrogen-containing compound to the cigarette condensate’s basic score’s MS analysis, in 155 is the pyridine derivative, 104 kinds kui lin or different kui lin derivative and 56 kind of pyrazine derivative [45]. Conclusions GC?GC has achieved the condition rapidly for to the volatile organic compound analysis most powerful tool. It appoints oneself achievement to be suitable completely for in the complex sample surveillance analysis technology. In the environment analyzed area, this includes PCBs by the analysis many example testimony to the common environment pollutant, PCDDs, PCDFs, PAHs and the pesticide in the complex environment matrix. Moreover, GC?GC has the potential to simplify the sample preparation procedure (even completely to eliminate them), when simultaneously causes when the shorter overall analysis time high resolution stratography spectrum. Regarding widely a new analysis method which adopts, not only it is certainly reliable and renewable, but it should also exhibit the significant advantage to surpass the method which accepts. The example reported the showing GC?GC method advantage in this review in the traditional 1DGC separation. In GC?GC historical first years period, the instrumentation development is the main focal point; However, from GC?GC system’s commercialization, the application quantity which reported greatly increases in the environment analysis and other scientific fields. Therefore, we may anticipate that the transition automation GC?GC is unified on-line sample which the correspondence uses to prepare gradually the equipment in the regular environmental monitoring. References 1. Marriott PJ. Haglund P, Ong RCY. Clin Chim Acta. 2003, 328:1–19. 2. Pawliszyn J. Solid phase microextraction, theory and practice. Wiley, New York. 1997. 3. Pawliszyn J. (1999) Applications of solid phase microextraction. Royal Society of Chemistry, Cambridge. 4. Dettmer K, Engewald W. Anal Bioanal Chem. 2002, 373: 490–500. 5. Butrym E. LC-GC. 1999, 17:S19–S24. 6. de Geus H-J, Wester PG, Schelvis A, de Boer J, Brinkman UATh. J Environ Monit. 2000, 2:503–511. 7. Mrowetz SHJ. J Chromatogr A. 1983, 279:173–187. 8. 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Wednesday, November 20, 2019

Explain the importance of strategic alliances in international Assignment

Explain the importance of strategic alliances in international business and the reasons why companies choose this growth strateg - Assignment Example This action of entering into foreign markets opens up the firm to benefits of economies of scale and increased opportunities for marketing and distribution. However, the cost linked with entering into foreign markets may far out-span the capabilities of a single firm (BLEEKE & ERNST 1993, 27). This then dictates the need to enter into a strategic alliance with another international firm. This has the effect of expediting the rate of entry into the foreign market albeit maintaining relative low costs (SHENKAR & REUER 2006, 71). Several logistical tussles are still to be encountered with entry into foreign markets. These tussles range from entrenched competition, unfriendly government regulation and irrelevant beauracracies (GIBBS & HUMPHRIES 2009, 45). There is a higher prospect of overcoming these obstacles when strategic alliances are employed, as contrasted to when the firm decides to venture into foreign markets on a solitary basis. There exist three core categories via which stra tegic alliance can be regarded. The first one of these is joint ventures. Joint ventures are formed when the respective companies combine to form an independent company. The respective companies decide to share the profit and loss of the new entity that will be created. One of the most notable cases where joint venture was created is that of Sony Ericson. Sony and Ericson decided to form a new entity known as Sony Ericson Mobile Communications. However, this new entity has just recently been fully owned by the Sony Corporation who renamed it Sony Mobile Communications. The next category of strategic alliances is equity strategic alliances. This entails the new partners having different percentages of equity in the new venture. Depending on the motive or goal of the strategic alliance, the partners can either opt to share equity in each other’s business on in one business. The determining factor is the reason for the strategic alliance. An example of such an alliance is that b etween Star-Bucks and Kraft. The last category of strategic alliance is non-equity strategic alliances. This is when a strategic alliance is carried out on the terms of a contract agreement rather than on the ownership basis. The relationship of this kind is usually referred to as a contractual relationship. A good example of a non-equity strategic alliance is the one between Vodafone and Telecom Malaysia. The deal was signed in 2006 whereby Vodafone was the leading partner. Strategic alliance requires a well though-out procedure to ensure the alliance is successful and realizes its intended goal(s). Prior to embarking on an alliance, firms should choose partners whose strategic goals and objectives are compatible to their own. The firm should take into consideration the extent to which synergy will be availed. Additionally, firms should endeavour to participate in strategic alliances that complement the firm. This translates to mean that, firms ought to engage in alliances that wil l complement their skills, their products and services in addition to its market share. Akin to all business agreements, rules and regulations must be incorporated into strategic alliances. These factors are divided into scope of operation and length of cooperation. The scope of operation entails partners agreeing on how to handle potentially competitively sensitive information. Secondly, it expounds on what will be shared and what will

Monday, November 18, 2019

The Impact of the Industrial Revolution on Cities since 1780 Essay

The Impact of the Industrial Revolution on Cities since 1780 - Essay Example Before the industrial revolution took force in England, most of the population lived in rural areas. In fact, over the course of the nineteenth century the population rate of towns would grow from 16% to 54% (Roberts, 348). Up until this time the government's response to civil services in cities was based on the laissez-faire concept of leaving people to their own devices. Because most citizens lived in agricultural areas such necessities as transportation, water and sanitation were not deemed necessary concerns for government interference. The sudden and overwhelming influx of the populace into tight, centralized location forced the government to reconsider this method of governance. With the construction of factories and housing for the labourers sent to work in those factories, cities were faced with newfound and critical needs to reorganize their policies on sewage, travel infrastructure and water supplies. Although the industrial revolution led to terrible working conditions for men, women and even children, and sparked the era of pollution and environmental and ecological exploitation, it was also the driving force behind development and modernization of public transportation, schooling, and health care (Roberts, 351). As a result of people moving into

Saturday, November 16, 2019

Website Lesson Plans Essay Example for Free

Website Lesson Plans Essay In math there are many interactions that can be done to get children to learn math. With these interaction it will build skills that will help lay the foundation for more confident math learner. With the development of problem solving children will understand that there are many different ways to come up with an answer and apply it to math successfully and to apply it to their everyday life. To do this children need to be included in activities and in math language. It can include weighting, measuring, comparing, and figuring out numbers, numbers, charts, shape or symbols. With mathematical reasoning children are able to think logically, see similarities and the differences in objects or problems. They will be able to make choices based on their own findings. The children will be about to think about the relationship or math language that it might hold for them. These lesson will be able to show anyone what a child is learning, how, and why they learn math. It helps them calculate in mathematical method. It will identify the levels at which individual child are working in the subject of learning. These children will be studying for an instructional goal or objective of learning that is required for the teaching in the standard of math. The major concept skill of students, principle will be identify and learned. One or more concept skills will be taught and addressed in the lessons. In a 5th grade math â€Å"Numbers and Operations† lesson the object of it is to get children to learn why numbers are an important part of every day life. It helps to talk with the children about the different reasons why numbers are used in everyday life. After the teacher talks to the student then the teacher can ask the children some question on numbers. What are some uses for numbers? Why are numbers important? The teacher than can let the class look around the room and see if they can point out any uses for numbers in the classroom. After a while the teach will point out some less obvious uses for numbers in the room: the number two on a pencil, the clock, the windows in the room, the number of paint brushes, and the number of children in the classroom. The teacher can than re-ask more questions about numbers: where can the children see numbers, why are numbers there, are they measuring, representing groups, or telling time (Discovery Education, 2013)? When everyone has returned to their desk and shared what they have found the teacher will ask all the students to imagine a world without numbers: what would it be like, how would the classroom or school be different, and how would things be different? The students will have a few minutes to think and share their thoughts about the subject. Than the teacher will talk about what the children do in the class or at home: what would be hard to do with out numbers, how does numbers help them know when to go to school, how does numbers help them stand in line or how many plates to get for the table? By asking the children these questions it really gets them to think about why and how numbers are used in every day life (Discovery Education, 2013). Near the end of class the children will write or draw in their journals to show a time they had used number in their life. The higher level children can write and draw a picture to show what they did. When they are done in their journal the children can display their work for the class to see (Discovery Education, 2013). This lesson is about getting the children to understand numbers. The children find ways to represent numbers in their life. They also start to build a relationship and system with numbers. The children come to understand the measurable attribute, process, system measurement of objects and units in numbers (Discovery Education, 2013).

Thursday, November 14, 2019

False Perception of Equality in Society Essay example -- Literary Anal

In Kurt Vonnegut’s story, â€Å"Harrison Bergeron,† everyone is made equal by the United States Handicapper Genera1 while the country is under totalitarian control. Handicaps are forced upon the people by the Handicapper General to create an all-equal society. The character George Bergeron is forced to stay equal by the government’s laws of equality while his wife, Hazel Bergeron, is of only average intelligence, and consequently not given a handicap. Their son, however, has broken the laws of equality and is fugitive of the United States Handicapper General. The conflict between the United States Handicapper General and the Bergeron family helps to establish and develop the theme of a false perception of equality. George and Hazel Bergeron help to establish the theme of the false perception of equality in the society: â€Å"George, while his intelligence was way above normal, had a little mental handicap radio in his ear† (1200). The handicap radio sends sharp noises ever few minutes to break his thought process. This handicap stops George from having an advantage over anyone in intelligence. George is also forced to wear a handicap bag around his neck to make him weaker: â€Å"She was referring to the forty-seven pounds of birdshot in a canvas bag, which was padlocked around George’s neck† (1201). In the eyes of the society these handicaps make him equal. His wife Hazel, however, does not have a handicap that she is forced to wear: â€Å"Having no mental handicap herself† she is already average, so there is no need for a physical or mental handicap (1200). The story explains this, â€Å"Hazel had a perfectly average intelligence, which meant she couldn’t t hink about anything except in short bursts† (1200). Hazel and George are a clear example of wh... ...he ballerina, the musicians, and Harrison all have the desire to break free of the government’s false perception of equality, for they acted out of accordance when given the opportunity without fear of punishment In the story the government has created an all-equal system in order to control society and to stop any chance of revolt. The government has clearly succeeded in their goal of brainwashing Hazel and George into believing in the system of equality even when it clearly has major flaws. Vonnegut’s point to the story is that Harrison has fallen short of the government’s accord causing chaos and proving that an all-equal system exists only for totalitarian control. The irony is that the gifted individuals are given handicaps and the average people are left free of any constraints, and the truth is, that within the equal society inequality is the sovereign.