Theory and the Principles of the Colorimeter

opening and the Principles of the Colorimeter food colouringimeterIntroductionColor of nutrient is not a physical characteristic of food nevertheless it is an in-chief(postnominal) quality attribute for foods. This is because contort affects the acceptability and perception of consumer for the food and even preference and perception of opinion (Lewis, MJ. 1996). The tinge is determined by the selective absorption of divers(prenominal) amounts of the wavelengths within the visible component part. Changes of color ass occur during food storage, maturation (ripeness), processing and others.Colorimetry is the scientific color criterionment which used to say color in numerical terms and to beatnik the color differences between the specimens. The specimens buns be paints, textiles, plastics, food and other products that may reflect or transmit color. Colorimeter is an instrument for psychophysical analysis by mensuration the amount of light passing through a liquid. This i nstrument provides measurements that correlate with human eye-brain perception. Be perspectives, the colorimeter is basically like a spectrophotometer but less complex as the spectrophotometer allows selection of any wavelength of light. Colorimeter measures the color through three wide-band filters which corresponding to the spectral sensitivity curves.A light source creates a propagate of light that shines through a example. The colorimeter then measures the amount of light transmitted or absorb electronically and provides colorimetric data as tri-stimulus respects (XYZ, L, a, b). The design of the Tristimulus colorimetry is about duplicate the answer of the human eyes. A light source, three glass filters with transmittance spectra that duplicate the X, Y and Z curves and a photocell atomic number 18 requi departure-faced. This helps to get the translation of XYZ represents the color of the prove. Drawback of XYZ system is not visually uniform, that means unrivaled uni t of color measurement in one argona of the solid was visually different from the selfsame(prenominal) unit in another area. Normally, the values of tristimulus are used to determine the direction and amount of any color difference if a color match is accurate.The colorimeter provided in this lab is Color bend colorimeter from the Hunter Lab. Color convolute is a self-contained color measurement spectrophotometer which had been introduced in this lab. It heap be used in production or in the laboratory for inspecting raw materials and evaluating the final product. isolated from this, the Color Flex is ideal for measuring powders, granules, pastes, liquids and opaque as it has its port-up or port-forward measurement orientations. The Color Flex require glass sample cup to hold the sample for measure and has a hole to interpose the glass sample cup according to its size. Specialized versions of the Color Flex are available for the citrus tree industry and the tomato industry. The se systems include specializes calibration precedents and measurement scales appropriate for the industry.Based on nonli dependablely com touch CIE XYZ color space coordinates, a Lab color space is a color-opponent space with the dimension L which for the visible radiation and the a and b are for the color-opponent dimensions (Hunter, Richard Sewall, 1948). This L, a, b values used in the system are com drifte from tristimulus value (X, Y, Z) as the backbone of all mathematical color models. The first system which uses the opponent-color theory is the hunter Lab system (1958). This system states that the bolshy, green and blue cone responses are remixed into opponent coders as they give the axe up the optic nerve to the brain.Figure 4.0 Tristimulus colorimetrOBJECTIVESTo measure the absorbance of particular wavelengths of light by a particular(prenominal) solution.To determine the concentration of a known solute in a given solution by the activity of the Beer-Lambert law whic h state that the concentration of a solute is proportional to the absorbance.To understand the theory and the principles of the colorimeter.To understand the standard physical process procedure to operate the colorimeter correctly.THEORY AND PRINCIPLEColor has various degrees of lightness and different values. Opponent-Colors Theory has been developed since the XYZ values are not easily to get understand in term of object. This theory is easier for the scientist perceive color, simplify understanding, improve communication of color differences and can be much linear judgment out color space.Based on the basic of the opponent-color theory, the Hunter L, a, b color space is a three dimensional rectangular, where L (lightness) varies from 0 (black) to 100 (white), a which represent ruddy-green axis with positive (redness) and oppose (greenness) values, and b which represent yellow-blue axis with positive (yellowness) and negative (blueness) values. The values of 0 for the a* and b * of all time represent neutral. Once the L, a, b position of a standard color is determined, a rectangular valuation account box can be drawn around the standard.Today, there are two popular L, a, b color scales which are Hunter L, a, b and CIE L*, a*, b*. A color thus far has different numerical values between these two color scales even though these two are similar in the organization. In fact, the Hunter and CIE L*, a*, b* scales are both mathematically derived from the XYZ values. Neither scale is visually uniform, Hunter L, a, b is over expanded in the blue region of color space whereas CIE L*, a* and b* is over expanded in the yellow region. stock(a) OPERATION PROCEDUREColorFlex ColorimeterThe ColorFlex is placed on a flat and stable surface where near an electrical outlet.The system is turned on by pressing the Red (lightning bolt) key and is allowed to warm up for at least two hours before use.Before measuring sample, the instrument must be calibrated. go to standardize the colorimeter are carried out as belowThe Down Arrow key is pressed until the menu is reached and then the Standardize is selected by pressing the Read key.As instructed, the sample supergrass should be covered with the black glass first. The black glass is covered at the sample port with the lustrous side toward the port and the arrow on the glass should be pointed towards the scientist.The thunderstorm button is pressed.The sample pot then is covered with the white tile. Same with the black tile, the sample port is covered with the shiny side toward the port and the arrow on the glass should be pointed towards the scientist.The thunderstorm button is pressed and the values are showed on the periphery of the tile.A message which indicates the instrument is ready to read will be displayed when the standardisation of the instrument is completed. The value of L*, a* and b* should be 50.87, -25.11 and 14.98 respectively.The sample cup must be cleaned before put the sample into it. Make sure that the sample must be at least fully covered the rump surface of the cup.After closed the cover, the cup is put onto the sensor to measure the sample and take the interpretation. The L, a, b value will be show on the screen by and by the thunderstorm button is pressed and wait for a moment.The readings are recorded.Steps 5-7 are repeated for different samples.DATATable 4.0 Standard Tristimulus determine .Table 4.1 Tristimulus Values of one-third strength of the Samples.Table 4.2 Tristimulus Values of two-third hatful of the Samples.DISCUSSIONFrom the demonstration, there are three samples which are green bean plants, red beans and dry red autumn pumpkin seeds are used to measure by using the colorimeter. These three samples are also measure with different volumes. The L, a, b values are recorded.For the green bean, the small amount of the green bean sample shows the value of a* as 0.57 while the green bean sample with a higher volume get the value of a* as 0.46. This difference between the reading can be explained as the green bean with higher volume gives more greenness with its a* value is adjacent to the negative values (low positive values). Moreover, the red bean with the low volume show the reading of the a* as 14.23 whereas the red bean with the higher volume show the reading of a* as 14.61. From this result, we can said that the red bean with higher volume are more redness than that of with the lower volume because its a* reading is more positive which indicate more redness. Same situation obtained from the dried red pumpkin seed. The high volume of red dried pumpkin seed has higher reading of a* as 27.11 compare than low volume of dried red pumpkin seed with reading of a* as 27.08.Next, green bean has showed that it is lightness with the value of L* as 37.13. It is more spark than the red bean and also dried red pumpkin seed with the reading of L* as 22.89 and 26.46 respectively. In the demonstration, the value of a* of the gree n bean is 0.57 which means that are green in color in that sample. Besides, the b* values as 23.71 has showed that the green bean samples consists of more yellow color but less blue if compared to the standard value as its b* value is positive value and higher than that of the standard values.In the demonstration of red bean, it show that it consists of lowest lightness with the value L* as 22.89 if compared to others two samples. Thus, we can conclude that the red bean is the darkest among the samples. The a* value of red bean is 14.23 which means that there are red color in the sample and is more red than the standard which has the negative value of a* as -25.11. Moreover, the red bean has b* values as 8.16 and this showed that it consists of more yellow color but less blue color in it.Last, the dried red pumpkin seed has the L* value as 26.46 which is lower than that of green bean but higher than that of red bean. Among these three samples, the dried red pumpkin seed has the high est values of a* as 27.11. It showed that it consists of more red color than other samples. For the b* value, its b* value is about 13.82 which means that the dried red pumpkin seed also consist of more yellow color but less blue. canvass the results obtained, we can notice that the dried red pumpkin seed has higher values of L* and a* which showed it is more lightness and also more redness than the red bean.PRE-CAUTION STEPMake sure that the put of the colorimeter is set as default setup before conduct the experiment to obtain verity data.The standard plates must be cleaned and make sure that it is free from dust and fingerprint.After done the calibration, put the black glass and the white tile back to the box to subdue scratching.The volume, size and weight of the sample must be standardized (constant). The amount of the samples must at least cover fully the bottom surface of the sample cup.The sample must be covered with the non-transparent black-coloured cover (light trap) w hen the readings are being taken. This helps to avoid the light sensitive colorimeter from the disturbance of other light sources.ReferencesLewis, M. J. 2006. Physical Properties of Foods and Food Processing System. Cambridge Woodhead publish Limited.Murano, P. S. 2003. Understanding Food Science and Technology. USA Wadsworth/ Thomson Learning.Pankaj B. Pathare, Colour Measurement and Analysis in Fresh and bear on Foods A Review. 2012. http//works.bepress.com/pankaj_pathare/3/.

Interest Groups in Texas, US

Interest Groups in Texas, USThroughout the nation there ar many different stake multitude groups from large national reside groups to small regional interest groups, Texas is no different. There is an innumerable amount of interest groups operating in the state of Texas. The main goal of an interest group is to get a piece of legislature passed that aligns with their goals or vision. some of the more prestigious interest groups in Texas argon Texas NAACP and the Texas State get Association. A couple of interest groups that have been underrepresented in Texas are the NARAL pro-choice Texas and the Texas Equity political action committee.The National Association for the Advancement of Colored People (NCAAP) is a national geological formation focused on the empowerment of colored people throughout the nation (Texas NAACP History.). NCAAP Texas is no different, they strive for the emanation of colored people. There have been many successes in Texas through the NCAAP. The NCAAP in Texas is one of the more influential interest groups due to the fact that it is also a national interest group and has far have-to doe with resources. With these resources they can reach out and receive help from anywhere in the country to battle whichever quandary they are faced with. They have had multiple successes in the national stage as well as the local stage in Texas.The Texas Rifle Association is one more influential interest group in Texas. Founded in 1919 the TSRA is located in Austin, TX and their main goal is to support the 2nd Amendment, which is the right to adjudge arms (LEGISLATIVE.). They are influential due to beingness the only full-time firearms advocate lobbyist in Texas (LEGISLATIVE.). Some of their successes have been the go around carry on campus implementation. This allows students to carry firearms on campus in the state of Texas. Also the open carry piece of legislation which allow the use of open carry in the state of Texas as well as effect due in part to their lobbying.There are however interest groups that are underrepresented in Texas. One of which is the Texas Equity PAC. The Texas Equity PAC is a group that advocates for the LGBT community of Texas (Texas Equity PAC.). Their main interest is to put in effect pro-equality polices and legislation through the election of pro-equality candidates. This group has non been around for rattling long and does not have many supporters in the state legislation. They do however endorse volt officials in the state government for their pro-equality work (Texas Equity PAC.).Another underrepresented interest group in Texas is the NARAL Pro-Choice Texas interest group. They are a group that revolves around feminism and in a conservative state like Texas, they are an afterthought. Their main mission is to guarantee every Texan has the right to make person-to-person reproductive health decision and to guarantee access to the full range of options (2017 Texas Legislature.). This inte rest group targets women who need abortions, and feel that this is a human right to have control over their bodies. Being in a conservative state, many of their arguments against anti-abortion legislation are defeated. This is due to many Republicans who are traditionally conservative being in political offices, and denying these appeals to overwrite legislation that takes away a womans right to decide whether or not she wants to have the baby.In conclusion, there are many national interest groups as well as interest groups in Texas. The main aspiration of an interest group is to have legislation or policies passed that positively effect their interest. There are many influential groups in Texas, a couple of them are the NCAAP Texas and the Texas Rifle Association. There are also interest groups that go underrepresented in Texas, some of these groups are the Texas Equity PAC and the NARAL Pro-Choice Texas groups.Works Cited2017 Texas Legislature. NARAL Pro-Choice Texas. NARAL Pro-C hoice Texas, n.d. Web. 05 Mar. 2017.Champagne, Anthony, and Edward J. Harpham. Governing Texas. New York W.W. Norton Company, 2013. Print.LEGISLATIVE. Texas State Rifle Association. TEXAS STATE disrobe ASSOCIATION, n.d. Web. 08 Mar. 2017.Texas Equity PAC. Texas Equity PAC. Texas Equity PAC, n.d. Web. 08 Mar. 2017.Texas NAACP History. Texas State Conference of NAACP Units. N.p., n.d. Web. 05 Mar. 2017.

Anti C1q Antibodies and Phagocytosis of Apoptotic Cells

Anti C1q Antibodies and Phagocytosis of Apoptotic CellsThe equilibrate system is one of the study effector mechanisms of the innate resistive system and it plays an important role in immune defense. The biological functions of balance are opsonization and phagocytosis, stimulation of incitive reactions by anaphylatoxins and backup-mediated cytolysis of microbes, especially encapsulated bacteria. The complement system is formed by an enzymatic cascade composed of plasma proteins that, once stimulated, can achieve wonderful amplification and effectively fight the invading microorganisms (Abbas et al., 2009).Under certain conditions, a pathological immune reaction may develop against complement fixingss, which on one hand reflects an underlying autoimmune mathematical process and may soften to inflammation and tissue injury on the other (Potlukova and Kralikova, 2008).The first component of the unspotted pathway of complement energizing, C1q, plays a crucial role in the cl earance of immune complexes and apoptotic bodies from the organism. Autoantibodies against C1q (anti C1q) have been found in a way out of autoimmune and infectious diseases. They have been best described in patients with systemic lupus erythematosus, where they are thought to play a infectious role in lupus nephritis (LN). Their mellow negative predictive value for the occurrent of participating proliferative LN, as well as their possible ability to indicate a renal flare as soon as 6 months in advance, have rendered anti C1q antibodies a novel non-invasive tool in the detection of active LN (Potlukova and Kralikova, 2008).The Complement C1q and Its AntibodiesC1q is the first component of the classical pathway of complement activating. Together with the enzymatically active components C1r and C1s, C1q forms the C1 complex. Binding of C1 to immunoglobulins in the form of immune complexes leads to activation of protease function of C1r and C1s and further activation of the cl assical pathway of complement (Schumaker et al., 1986).C1q is a glycoprotein belonging to the collectin family with a molecular weight of about 410-462 kDa. It is a hexamer composed of globular heads attached to coll shape upn-like triple-helix tails (Fig. 8). The globular heads of C1q specifically attach to the constant unsounded (CH2) domain of immunoglobulin G motes or the CH3 domain of IgM. each heavy chain of the immunoglobulin molecule contains only one medical dressing site for C1q. Since C1q must link to at least two heavy chains in order to change its conformation and activate C1r and C1s, its activation ensues only after binding to immunoglobulins in the form of immune complexes ensnare to multivalent antigens (Schumaker et al., 1986).Most complement proteins are synthesized in the liver by hepatocytes. However, macrophages can synthesize early complement components of both the classical and alternate pathways and can provide suitable local tissue complement for ops onization without recruiting plasma complement (Colten et al., 1986). C1q is unusual, for a complement protein, that it is synthesized by tissue macrophages entirely not hepatocytes (Loos et al., 1989).In addition to being the first component of the classical pathway of complement activation, C1q has m either physiological roles. C1q can directly change apoptotic cells (AC) for phagocytosis. In vitro, C1q binds to surface blebs on AC but not figure host cells (Korb and Ahearn, 1997). C1q binds to calreticulin (CRT) in AC blebs and opsonizes AC for enhanced phagocytosis through C1q interaction with CD91. C1q can opsonize AC in like manner indirectly through complement activation (Lu et al., 2008). Consistent with this, the finding that C1q-deficient mice have been shown to have an accumulation of apoptotic bodies in the kidneys (Botto et al., 1998) and macrophages of C1q-deficient mice and humans have a decreased ability to clear apoptotic bodies in vitro (Botto, 1998 Taylor e t al., 2000).In this way, C1q promotes the clearance of autoantigens, preventing stimulation of the immune system and disruption of this process may lead to evolution of autoimmunity (Botto, 2001).C1q-opsonized AC besides regulates DC action of cytokines, but data from different studies are not entirely reconciled (Lu et al., 2008). Apparently, most studies report C1q inhibition of IL-12 production from DCs and that AC stimulated macrophages take more IL-10 and less IL-12. This suggests a tolerogenic property of C1q which is consistent to the development of autoimmunity at C1q deficiency (Botto et al., 1998).C1q has also miscellaneous roles in regulation of multiple macrophage activities, in DC differentiation, activation and antigen presentation and in granulocytes, mast cells and fibroblasts regulation (Lu et al., 2008).There are several autoantibodies to complement proteins that interfere with the physiological regulation of complement activation in vivo, and each of these h as been associated with the development of disseminated lupus erythematosus. These antibodies are C3 nephritic factor, anti-C1 inhibitor autoantibodies, and anti C1q antibodies. In each of these lessons, there is a chicken and egg dispute, since it could be argued that development of the anticomplement autoantibody is itself part of the SLE process. However, in the case of C3 nephritic factor, which stabilizes the C3bBbC3 convertase enzyme of the alternative pathway, 8 cases of SLE have been described )Sheeran et al., 1995 Walport et al., 1994). In each of these, the on coif of SLE occurred mevery years after the development of the main clinical phenotypes associated with the front of C3 nephritic factor, supporting the idea that the C3 nephritic factor was the egg alternatively than the chicken.History and epidemiology of anti C1q antibodiesBinding of monomeric IgG to C1q was first described in 1971, in sera from patients with SLE with hypocomplementemia (Agnello et al., 1971), and in 1978, precipitation of C1q by monomeric IgG was record in the hypocomplementemic urticarial vasculitis syndrome (HUVS) (Marder et al., 1978). In 1984, anti C1q antibodies were found in patients with SLE (Uwatoko et al., 1984). Since then, occurrence of anti C1q antibodies has been described with varying prevalence in patients with autoimmune and also some infectious diseases (Wisnieski and Jones, 1992).Anti C1q antibodies were mostly of the IgG subtype with IgG1 and IgG2 being the frequent subclasses (Siegert et al., 1990). The prevalence of anti C1q in the general population varies among 2% and 8% (Potlukova et al., 2008). As is the case with other autoantibodies, the occurrence of anti C1q increases with age (Ravelli et al., 1997 Siegert et al., 1993). The mere positivity for anti C1q antibodies in an otherwise healthy single does not appear to bear any pathological or predictive significance (Potlukova and Kralikova, 2008).Pathogenic role of anti C1q antibodiesAnti C 1q antibodies have high negative predictive value for active lupus nephritis (LN) suggesting a pathogenic role in SLE patients. In addition, the elimination of anti C1q antibodies from circulation by repeated plasmapheresis or C1q immunoabsorption brought alleviation of the patients symptoms (Berner et al., 2001 Grimbert, et al., 2001).The binding of anti C1q antibodies to C1q is mediated via pleasing fragments and in contrast to immune complexes, anti C1q antibodies do not bind to globular heads of the C1q molecule but to its collagen-like tail (Fig. 8). The binding is very watery in the liquid phase, but achieves high affinity in the case of a conformationally changed C1q in the bound state exposing new antigenic determinants. Thus, any possible pathogenic role of anti C1q antibodies probably remains control to local deposits of C1q in tissues (Potlukova and Kralikova, 2008).Another intriguing mechanism of the pathogenicity of anti C1q antibodies capacity be a switch from non- inflammatory identification of apoptotic bodies by C1q and its receptors to inflammatory recognition when C5a and other complement activation fragments are generated during enhanced complement activation due to anti C1q antibodies at sites where C1q is recognizing nuclear antigens (Holers, 2004).Fig. 8 A simplified scheme of the binding of anti C1q antibodies to the molecule of C1q.Anti C1q antibodies per se do not seem to activate complement however, their binding to C1q may overdo complement activation by increasing the amount of the bound IgG in a vicious circle manner. Furthermore, they might attenuate the physiological functions of C1q, including the capacity to activate the classical pathway of complement and to clear immune complexes and apoptotic bodies. Taken together, several different mechanisms seem to be involved in the pathogenicity of anti C1q antibodies (Potlukova and Kralikova, 2008).The presence of anti C1q antibodies in lupus is typically accompanied by a numbe r of clinical and serological features. The complement profile is mistakable to that seen in HUVS, with very low levels of C1q, C4, and C2, and, to a lesser extent, C3. Anti C1q antibodies feed to remain positive in SLE for protracted periods, and there is associated prolonged hypocomplementemia. This differs from anti-double-stranded DNA antibody levels, which tend to fluctuate in concentration, together with inverse changes in complement levels (Pickering et al., 2000). Anti C1q antibodies in infectious diseasesAnti C1q antibodies have also been found in some infectious diseases Prohaszka et al. (1999) have found an increase occurrence of anti C1q antibodies in patients infected with human immunodeficiency virus 13% of infected patients were positive when compared with 5% controls. Furthermore, the levels of anti C1q antibodies significantly decreased during a follow-up period of 65 months. Interestingly, sera with detectable anti C1q antibodies were more potential to neutrali ze HIV than sera without them in in-vitro experiments.Saadoun et al. (2006) have reported an increased prevalence of anti C1q antibodies in patients infected with hepatitis C virus (HCV), with 26% being positive. Contrary to expectations, the occurrence of anti C1q antibodies did not differ between HCV-infected patients with and without blend cryoglobulinemia indicating that immune complexes do not cross-react with the anti C1q assay and proving also the exuberant presence of immune complexes in the circulation does not seem to be sufficient to provoke generation of anti C1q. Further studies are needed to polish off their role and clinical relevance in other diseases.Measurement of anti C1q antibodiesIn the past, radioimmunoassay based on the binding of immune complexes to C1q fixed to a solid phase was mainly white plagued to determine the concentration of immune complexes (Hay et al., 1976). Later, the solid-phase C1q binding assay was modified into an enzyme-linked immunosorb ent assay (ELISA). For this purpose, either solely C1q or the collagen-like region of C1q was employed. However, the use of individually prepared ELISA kits with differently set cut-off limits for positivity led to a rather large disparity between the results of clinical studies. Nowadays, measurement of anti C1q antibodies in serum has become easier thank to commercially available and standardized ELISA kits using the whole C1q molecule as antigen (Potlukova and Kralikova, 2008).The main pitfall in the measurement of anti C1q antibodies consists in a possible binding of circulating immune complexes to the solid-phase bound whole C1q. However, it has been shown that the use of high ionic strength conditions in the incubation media inhibits any similar unwelcome binding and it renders the ELISA reliable for clinical use (Kohro-Kawata et al., 2002).

Sen’s Theorem: Overview and Analysis

Sens Theorem Overview and digestTable of Contents (Jump to)1. Introduction2. A f completely over of Sens Theorem3. The jump out of recent Interpretation4. Merits of the unfermented Interpretation5. mop upReferences1. IntroductionThe Sens theorem has an important impact on the purpose and social choice theory. In the Nobel Prize lecture of 1998, Sen said that discovering the societal decision rules go out be the main accusing of the choice theory. However, Sen found it is difficult to achieve this objective in his paper of Impossibility of a P betian Liberal (Sen, 1970a, b, 1976c). Sens theorem subjects that it is out of the question to achieve the negligible aspect of liberalism when it is combined with the P arto feel out. According to the theorem of Sen, it seems that on that point is a fundamental frequency conflict between the P areto public assistance concepts and the liberalism. After this argument, there is a pooling of studies that focus on the case-by-case rights and there are overly studies that become wise indication for the theorem of Sen.According to Saari and his collaborators, the cyclic decision outcomes established by Sens theorem describe a transitional, dysfunctional state of comp either. This taste entrust mainly explain how this adaptation arises and discuss its merits relative to the original commentary offered by Sen. The essay will be structured as cost in the second session, the essay will briefly introduce the Sens Theorem regarding to the conflicting results between Pareto Optimal and Liberalism. Examples will in addition be utilise to remedy illustrate the choice decisions. In the third session, the essay will how and why there will be sore descriptions of the theorem of Sen. Particularly, the essay will base its argument on the investigate results of Saari and his collaborators. In the fourth session, the essay will discuss the merits of the new interpretation compared with the interpretation by Se n himself. In the last session, a brief conclusion will be do based on the analysis in the previous session.2. A Review of Sens TheoremThe Sens impossibility of a paretian libertarian theorem or Sens conundrum Paratian liberal states that weak Pareto criterion and liberalism may have conflicts on the fundamental level, which indicated that the Pareto criterion is flawed. On unitary hand, it shows that the Pareto criteria only consider aspects of difference in efficiency among relevant states while ignoring the idiosyncratic utility conflicts arising beca apply of these states. On the early(a) hand, the theorem also shows the in addition to considering close to reasonable internal conditions, adept also require to consider issues such as liberalism for social night club decision making. According to Sen, there are some choices that are sternly of psycheal nature, such as the state (x) means everything else in the ordination as , when A is sleeping supine, state (y) means everything else in society as , when A is sleeping prostrate. If A has a preference of y than x, while many others in the society prefer the opposite, then(prenominal) it bottomland be considered that social choice between x and y is a purely soulfulnessal thing, because A is the only a real person that is related to the choice while other people are meet nosy person. It can also be considered that hotshot can favor one such a collective choice rule where As preference should be accurately reflected by social preferences in this purely personal nature choices (Sen, 1970). Based on this point, Sen emphasizes that people should pay perplexity to the study of individual rights and other issues affecting the social choice range and decision making. The new welfare economics and welfare economics research before the new welfare economics are consciously or unconsciously avoid these problems.Sen (1970) found that the Pareto criterion is incompatible with liberalism. Pareto optim ality is used by the economists and other social scientists to measure the efficiency of society, which is also the the most plebeian and widespread, even the only indicator. It refers to such a state that we are wide-cut as it gets, no one can make an additional welfare without compromising the welfare of others. And the principles of individual granting immunity are the relentless hunting of mankind, both of which are on the intuition that people can to the full accept and understand. However, Sens theorem shows that these dickens attractive standards are contradictory and can non be simultaneously true.3. The Rise of New InterpretationThere are trinity preconditions that Sens theorem is based on and the realistic of these self-assertions will be one reason why there will be new interpretations for the Sens theorem. First, the essay will briefly introduce the assumptions related to the Sens theorem.An unrestricted area principleThe Pareto principleThe minimum principles of liberalism (ML), which states society should give at least two people the right to choose between at least a pair of social status. If one thinks that A conk out than B, then society should not interfere and should keep with the preference.With Sens words, if you sine qua non sleeping supine and did not want to sleep prostrate, the society should agree with it. However, Sen also prove that for two or more people in the society, there exist no social choice functions that simultaneously run into these above three conditions because there will be the similar results of cyclic Condorcet voting paradox revealed by Arrow Impossibility Theorem when Pareto optimal is in combination with a minimum principle of liberalism.Sens theorem on foregodom of the Pareto impossibility can be accurately described as there does not exist the collective decision rule that meets the following conditions.The introductory condition is a sort of rational conditions. The sort is reflexive, relevance , and the preference analogy is not circulating. Reflexive means for any choice x has xRx, which indicates that any choice is at least as good as its own. relevancy means for any two options, there must be xRy or yRx or both. The second condition is weak Pareto criterion. For any choice of x and y, if everyone i think xPiy, then the society also thinks that xPy. The third condition is the minimal liberalism. In this condition, there are two non-empty, disjoint subsets L1 and L2, two different options for the (a, b) and (c, d), if everyone in L1 considers a is let on than b, then the society also thinks that a is better than b if everyone in L1 thinks that b is better than a, then b is also better than a for the society. Similarly, if everyone in L2 believes that c is better than d, then the society also thinks that c is better than d if everyone in L2 thinks d is better than c, then the society thinks also that d is better than c. The two groups were decisive on the choice between the two groups. Anyone is free to do what he likes to do, which means there are some choices that are entirely personal, personal preferences should not be affected by some other people.How to walk out of Sens paradox? Mueller has proposed two solutions in the public choice theory . One is to let the Pareto principle in some cases to comply with the right to liberalism. The other is through Pareto transactions. As Mueller noted, the ground substance is similar to game theory, for example a state in the notable prisoners dilemma, and the Pareto inferior results are due to the independent exercise of each person in his own right, regardless of the damage to others such externalities.The results of Sens theorem are established mainly through examples. There are no rigorous proofs on the results why there will be inconsistency of minimal liberalism and Pareto conditions. The results are basicall(a)y based on the assumption that there are conflicts between the Pareto Conditions and th e minimal Liberalism. There are questions keep asking whether the assumption is true and what if the cyclic societal rankings are not due to these conditions?In fact, in 1998 and 2001, Saari argues that the real reason of the seminal result of Sens theorem is not related to the nature of the Pareto condition and the Minimal Liberalism. The reason is that Pareto conditions and Minimal Liberalism needs the societal rankings to be made over pairs, which dismiss the transitivity of individual preferences. Therefore, it is not the conflicts between societal need and individual rights that undermine the assumption of individual moderateness it is the concentration of pairs that leads to the ignorance of individual rationality. And Saari also made nonrepresentational proof on this argument, which provides a new interpretation for the Sens theorem.4. Merits of the New InterpretationThere are several advantages of the new interpretation compared to the one that Sen present in the original version. First of all, the theorem carried out by Saari and his collaborates are proved using geometric proof, instead of using only examples and assumptions to get the final results. In addition, the new interpretation can explain all the examples used by Sen in his prior papers and the new interpretation also supports Sens own interpretation that the three conditions in Sens theorem force the decisions to be made by ignoring the individual rationality. The new interpretation also thinks that the decision rule also wants to meet the demand in the cyclic preference (Saari 2001 Saari and Petron, 2004).Secondly, the geometric proof of the new interpretations has identified all possible profiles that support any examples of Sens model. In addition, Saari and his collaborates have also significantly expanded on earlier observations by providing a new statistical interpretation for Sens Theorem. And they also conclude that the cyclic decision outcomes established by Sens theorem describ e a transitional, dysfunctional state of society.Thirdly, the new interpretation has pointed a new guidance for the movements of individual rights. Compared with the interpretation by Sen, the new interpretation focus more on the forcefulness minimal liberalism, which will leads to social decision procedures without cyclic outcomes and at the akin time satisfy weak Pareto conditions. They pointed out the deeper reason of the ignorance of individual rationality instead of concluding that the reason is because of the inconsistency of the Pareto condition and the Minimal Liberalism.5. ConclusionAs discussed in the previous session, the Sens theorem provides a good direction for the research of individual rights. And there are many researchers working on the topic to find new interpretation for the seminal results of Sens theory. Saari and his collaborates find that Minimal Liberalism makes some of the information in the society irrelevant. However, depending on that information, ind ividual preferences may or may not be transitive. Therefore, they conclude that Minimal Liberalism makes transitivity information irrelevant and this happens for any possible example of Sens cycles. They find a way to solve this problem and the response to this is to veer Minimal Liberalism in a way that is sensitive to transitivity information. They use the Intensity Minimal Liberalism (IML), which is a decisive that agent can gossip his preferences only when the choice does not create a strong negative externality for some other agent. And they finally find that there are social decision procedures without cyclic outcomes that satisfy weak Pareto and IML, which provides a new interpretation for the Sens theorem. The new interpretation finds a more trance way to proof Sens theorem and expends Sens theorem in several aspects.ReferencesLi, I. and D.G. Saari 2008. Sens theorem geometric proof, new interpretations, fond Choice and Welfare 31 393-413. reduce especially on pages 39 3-401.Petron, A and D.G. Saari 2006. blackball externalities and Sens liberalism theorem, economic opening 28 265-281. Read Sections 1 to 4.Saari, D. G. (1995). Basic Geometry of Voting, Springer-Verlag, New YorkSaari, D. G. (1998). Connecting and resolving Sens and Arrows Theorems, affectionate Choice Welfare 15, 239-261Saari, D. G. (2001). Decisions and Elections Explaining the Unexpected, Cambridge University Press, New YorkSaari, D. G., and Petron, A. (2004). (April), Negative Externalities and Sens Liberalism Theorem, IMBS working papers, University of California, Irvine, to appear in Economic Theory,June, 2006.Saari, D. G. and Sieberg, K. (2001). The sum of the split can violate the whole, American Political Science Review 95, 415-433.Salles, M. (1997). On Modelling Individual Rights Some Conceptual Issues Discussion p 129-133 in Social Choice Re-examined, Vol. 2 Ed. by K. J. Arrow, A. K. Sen, and K. Suzumura,St Martins Press New York.Sen, A. K. (1966). A Possibility Theo rem on Majority Decisions, Econometrica, 34(2), 491-09.Sen, A. K. (1970a). Collective Choice and Social Welfare, Holden-Day, San Francisco.Sen, A. K. (1970b). The Impossibility of a Paretian Liberal, The journal of Political Economy, 78(1), 152-57.Sen, A. K. (1976). Liberty, Unanimity and Rights, Economica 43(171), 217-45.Sen, A. K., Liberty and Social Choice, Journal of Philosophy, 80(1), 5-28.Sen, A. K. (1992) Minimal Liberty, Economica, 59 (234), 139-60.Sen, A. K. (1999) The possibility of social choice. The American Economic Review 89 (3), 349-378

Tobacco industry

baccy externaliset industry baccy plant plant plant industryTobacco industry plays as a pioneer in the modern food trade placeing. Tara Parker-Popes Cig arttes anatomy of an industry from seed to smoke acknowledge that the tobacco industry represents promotion and selling itself. It is the industrys commercializeing ability which made tobacco a steep necessity good for billions of people around the world, nonwithstanding the products nature of harmfulness. The world tobacco industry has been recently hit by the criticism on major companies amicable responsibility as the cognizance of the products harmfulness amplifications. This is fol deplorableed by anti bullet campaigns and various regulations in the international market. Despite the adverse environment, the industry is still growing and its influence on the world economy has non weakened.A question then a fount, what attribute of merchandising dodging the industry has been applying in pose to form a huge global market and what would be effective schema to play along in changing environment. The question basin be tackled by analysing an case-by-case gild which has been adopting its system successfully to changing environment. drub (British American Tobacco)The worlds biggest market is China where 35per cent of the global total out wander is consumed and industry is give in owned monopoly. Out nerve China there argon quaternion major companies which account nearly half of the global market, which PMI (Philip Morris International), with a global market sh atomic number 18 of 15.6per cent, baste (British American Tobacco) with 12per cent, JTI ( lacquer Tobacco International) with 10.6per cent, Imperial Tobacco with 3.5per cent. (Yuk. scrap Kwan, 2008, p18) figure out was founded in 1902 and has sustained a significant industrial posture for over 100 years. They produce 684 billion cig arttes a year by with(predicate) 47 factories in 40 countries with 53,000 employees worl dwide. Their continuous growths can be set from their financial performances, where the figures for growth turn over, revenue and profit is in increase. BAT is the most multinational cooperation among the international tobacco companies operating in vanadium pieces around the globe. They are America peaceful, Latin America, Europe, Africa and Middle East and Asia Pacific where Its flaws hold robust market positions and have leadership in more(prenominal) than than 50 markets. While their competitors focusing on the large and base markets (Philip Morris- US, Japan Tobacco- Japan), BAT successfully adopted marketing strategies to the crude environments and developed new markets. zany success in the South Korean tobacco market is the typical example where its effective marketing strategy adopted to prodigal changing environment. By looking at the market closely, the factors which led to the success pull up stakes be identify. BAT in South Korean Tobacco MarketBAT has entered South Korean tobacco market in 1988 when state monopoly party KTG (Korean Tobacco and Ginseng)s exclusive monopoly on tobacco trade has abolished. Until 1990s its forefront brands KENT and KOOL has failed to adopt the Korean market and experience market divest for twice. yet by re-positioning its brand to DUNHILL in 1993, the sail s sales talkted rise and in 1996 BAT successfully occupied the competitive position in Marketing EnvironmentThe abstract will s diddlyt with looking at strengths and weakness the BAT obtained internally over the competitors. The opportunities and threats will then be verified to investigate the external environment the BAT is facing in the Korean tobacco market. This will help understanding awry(p) strategies and will provide solutions to current environment changes.StrengthBAT had effective fictional character control process which secures customer satisfaction. Over 300 tincture tests dwell by means of the manufacturing process from purchasing raw materials to finished products. The products produced in Korea are regularly sent to the BATs lab in London to ensure its eccentric is maintained. This helps to deliver the BATs control of high subvention tobacco manufacturer, which as well aid by its 100 years of history. BATs placement strategy enforces its competitive position in the market. By having a topical anesthetic achievement facility, its products are made by locals which dilute possible deviation the abroad imported goods obtain. With over euchre salespersons operating through 19 regional offices, BAT is able to gather effective information on sales. Salesperson visits 7,200 retailers across the country twice a week, and conducts monthly marketing surveys which not only improve marketing decisions, but improve caller reputation. Weakness Local consumer can be hostile to BAT as there is ambiguos impression of greedy foreign multinationals. Also the products nature of macrocosm harmful to health multipli es the issue a good example would be a campaign held in November 2002 by the Korean Writers Association debate establishments grant on BATs manufacturing plant. The hostility to foreign company can be expressed through various way especially in the tobacco market where many governmental restrictions exist. Opportunity Increasing cognizance of tobacco products harmfulness, led to demand rise in high quality and base shit tobacco products. This matches with the jut of BATs forefront brand DUNHILL-light and the companys reputation of quality tobacco producer. ThreatPrivatisation of KTG triggered the competition war mingled with global rivals in the Korean tobacco market. This year JTI (Japan Tobacco International) revealed its plan on construction of new manufacturing plant in Korea where as PMI (Philip Morris International) announce the 65m expansion on its manufacturing facility by 2009. While the competition among incumbent companies grew stronger, Altadis Group which occup ies 27per cent of the world cigar market entered Korean come homeed tobacco market with its high premium brand at forefront. Korean tobacco market also suffers from increasing awareness on tobacco products harmfulness over the world. The prohibition campaigns led by social sorts effected government legislations to restrict the products promotion, sale and usage. While looking at BATs probability and threat, the external environment factors are identified which had big influences on both company and the industry. In order to look into the strategies, needs arise for more thorough investigation on its current market environment. PEST analysis will be conducted to divide the environment into political, scotchal and social footing which will be defined in more depth.Political latterly governments around the world have applied added restrictions on the tobacco markets Korean market is no different. Restrictions are mainly set in twain different ways restrictions on the manufacture r and restrictions on the consumer. In Korea the deport promotion of tobacco products are only allowed on the printed publications which its reader groupings are verified as male adults, excluding casual publications such as newspapers. However even this way has leap on number of appearance, which is set not to exceed more than 60 times a year per brand. On daily publications, only indirect promotions are allowed where only promotions on the company name can be advertised not the product. In July 2002 BAT was prosecuted by Ministry of health and welfare for directly promoting tobacco products on daily publication which cost company with fine. The international organisations pressure on tobacco market is also growing. In last 30th May, WHO (World Health Organisation) say Governments need to ban all tobacco advertising and promotions to deter adolescents from smoking announcing international agreement on prohibiting tobacco companies product promotion through sponsorship on sport s, music, etc. If the government start to force this by legislations, BATs current marketing strategy would be affected strongly as most of its promotions are done through sponsorship. Economical Current break in world economy spreads negative effects throughout the industries, although its results arrange out to vary between industries. In 2003 Korean economy experienced a recession caused by what is known as Card-crisis, when major finance companies collapsed. The recession spread across the industries except for alcoholic drink and tobacco market. Through the period, the survey reports that sales for alcoholic drink rose by 3.1per cent and sales for tobacco rose by 8.9per cent. (cho-sun il bo) These results put forward the issue on growing tobacco industry in recent hit by health warning and economic recession. Figure1 and Figure2 also support the argument on increasing demand for tobacco in recession period. KTB Investment Company forecasted as considering the current economic recession, the tobacco sales in Korea will increase in next year. The economic recession also affect the grade of the tobacco market. The recent social movement in the Korean tobacco market was on low tar high quality brand and this was the reason BATs DUNHILL-light was successful. However analysts make out that the trend is shifting from low tar cigarette to high tar cigarette due to long recession over economy. If this turns out in true, BATs low tar brands will face decline where as PMIs high tar product Marlboro will be gained. sociable cordial concern on the tobacco users health is not a precise new issue. However increasing concern on the health-right of the passive tobacco user brought active antismoking campaigns across the world. by nearly 30% from 67.6% in 2000 to 40.4% in 2008. The figure is still declining and the Ministry of national statistic forecasts that the rate will fall to 30% by 2010. The environmental factor of BAT in Korean tobacco market is now define d. The analysis will be used to mention the BATs current marketing strategies and possible changes to be made in adopting with changing environment.Marketing StrategyMarketing strategy is defined through two main processes. Positioning strategy by correct stain segmentation and marketing mix strategy by defining four Ps (Product, Place, Promotion and Price).Positioning strategy can be identified through three processes defining market segments, posterioring selected segments and positioning of products on customers perception. cleavageKorean tobacco market can be divides into demographic region and psychographic region. With nature of tobacco companies being large co-operations, segmenting geographic region is not necessary especially defining a relatively small Korean market. Also Behavioural segmentations is not effective since all tobacco products are consumed regular basis. Demographic region include segment of different ages and social class. Psychographic region include seg ment on life means and insight. date group of 19 to 25 and 25 to 30 have characteristics of displace brand film more important than practical use of the products. numerous of these groups admire western culture. Group of age between 30 to 50 and 50 onwards share opposite characteristics from younger group. They are imperial to the brand based on their personal favour of the judgment of the cigarette. Social classes are divided into upper class, middle class, working class and low class. Upper and middle classes are accomplices of trend and obtain continual income whereas middle and working classes often influenced by environments such as reduced income, economic recession.Life style groups in Korean tobacco market are divided into patriotic personal group, trend setter group and low price fol overthrow group. Patriotic group would prohibit foreign products. They tends limit their choices only to KTG products whereas trend setter group has no limit on the choices. As its na me represent low price follower group limit their choices to low price cigarette. Characteristics of both life style group and age group are interlinked. The types of tobacco tastes are voiced taste, strong taste and special taste. Mild taste group favours low tar cigarette products and strong taste group favours high tar products. Special taste usually refers to group favouring menthol flavour products and rarely strawberry, banana and other fruit flavour also exist.TargetingBATs marketing strategy in Korean tobacco market starts with suckering correct segments. BAT has been operated globally as a high quality premium cigarette producer and premium brand market is their expertise. They will gain advantages by selecting target market where the premium brands work effectively. BAT has a phrase representing their target segment of ASU30 which stands for adult smoker under 30 and age group of 19 to 25 and 25 to 30 suits into this category. Their characteristics of following brand p roject and admiring western culture comply with BATs product image.In order to comply with their premium brand the social class need to be focused to upper and middle class. The nature of the cigarette product contains consumption behaviour of continuance purchase and this requires constant income to maintain the behaviour. For segments in taste of the cigarette, BATs DUNHILL-light brand complies with those who favour mild taste. With the increasing health concern, smokers are switching from strong taste cigarette to mild cigarette which contains lower tar rate. While the international rival PMI focuses on strong taste high tar market (Marlboro), BAT can also be benefited by weak competition.PositioningIn Korean tobacco market, BAT has targeted age group of under 30s, upper and middle social classes, trend setter group and mild low tar favourers. The positioning strategy which would successfully comply with the targeted groups would be implanting the image of BAT produces high quali ty premium tobacco. This is achieved through prestige price, package design, promotion on company reputations and strict quality measures. Defining 4Ps (Product, Promotion, Price and Place) identifies the products position on the marketing mix. ProductBATs forefront brand DUNHILL-light has 84mm length and charcoal filter blended. The design of its package is a key driver to image of the premium brand which consist with unique bevel edged style and octangular shape. As mentioned in the strengths section, BAT conducts over 300 quality checks during production process insuring customer satisfaction. Promotion BAT often uses promotion order of image positioning than product positioning. Rather than appealing with product itself, image positioning focuses on implanting ambiguous image of product. BATs promotion of DUNHILL-light delivers image of luxurious and conservative. However as BAT targets young consumers under 30s, image re-positioning is vital. The rival companies promotion stra tegy aiming for young consumers threatens DUNHILL-lights market position. PMIs Marlboro-light obtains active image and JTIs Mild Seven has liberal images. PriceBATs current pricing strategy contains prestige pricing which ensures its premium brand image. However as identified in threats part, current economic recession decreases the consumer loyalty to its brand. localize pricing strategy is required which will satisfy both side of the issues.PlaceBAT has its unique distribution structure over competitors in the market. They are only tobacco manufacturer which runs own sale dodging of dealing directly with their retailers. Also by conducting monthly survey on retailer BAT can get to its customers more closely. Chain of 500 salespersons and 7,200 retailers are key success to BAT. Analysing marketing strategies of BAT in Korean tobacco market has helped understanding of how strategies adopt to different marketing environments. BATs current strategies are not only identified but eval uated with vestige of possible improvements to be made. On the whole through the analysis work, strategy which led industrys continuous growth is identified. Finally applying the BCG (Boston Consulting Growth) model, BAT is a lead-in company in Korean tobacco market which currently enjoying high market share with high industrial growth. In order to get under ones skin a Cash Cow, BAT should apply passive marketing strategies increase investments to secure its market share.

Copolymerization of Styrene and a Cyclic Peptide

Copolymerization of phenylethylene and a Cyclic PeptidePutting peptides into the backb wiz strand of polyolefins the theme copolymerization of vinylbenzene and a cyclic peptide containing the disulfide poseAnja C. Paulya, Daniel Rentschb and Fabio di Lena*a. encouraging cultivation creep For the first time, a vinyl radical monomer such as styrene has been extremistly copolymerized with a cyclic peptide containing the disulfide bond. A new physique of bio-hybrids is obtained in which the amino acid sequence is statistically distributed within the polymers backb unrivalled reach. The social organization of the copolymer has been confirmed by means of conventional as hale as diffusion-edited 1H NMR, MALDI FT-ICR mass spectrometry, FT-IR spectroscopy, TGA, DSC, and a series of escort experiments.With the aim to combine the plus properties of biological macro molecules such as, for example, the biological assist, molecular recognition, and chirality, with the solution proper ties, processability, etc. of artificial macromolecules, polymer chemists take in started to develop the so-called bio-hybrid polymers. Bioconjugates are the most studied class of bio-hybrids.1 These are block copolymers in which a protein, polysaccharide or pedestal is chemically linked to a synthetic polymer such as a polyolefin, polyether or polyester. In this type of structures, the constituent blocks maintain their individual properties, which crap them, in many ways, similar to polymer mixtures. At odds with block copolymers, statistical copolymers do not exhibit the characteristics of polymer mixtures but behave like kindred materials with peculiar physical and chemical properties. Here we report the provision of a new class of bio-hybrids in which, much like in statistical copolymers, an amino acid sequence is incorporated directly into the backbone chain of a polyolefin like polystyrene. The polymers are inclined(p) by the extremist ring-opening copolymerization2of a cyclic peptide containing the disulfide (S-S) bond and styrene. Cycles containing the S-S bond are k at one timen to undergo solution copolymerization with vinyl monomers such as methyl acrylate, vinyl acetate, acrylonitrile and styrene.3The whimsical force behind the research is our interest in finding new, naive and industrially friendly ways to turn commodity polymers into specialty polymers with superior added value. To our knowledge, the only examples of polyolefins containing amino acids in the backbone chain have been prepared by Wagener and co- turn overers by means of acyclic diene metathesis (ADMET)4 polymerization of dienes containing a single amino acid residue conducted in the presence of a ruthenium carbene catalyst.5 The approach we describe here is metal-free, en adapteds the incorporation of sequences of amino acids and employs radical polymerization, a process with which more than 50% of all the polymers scramd worldwide are made.Scheme 1. primary copolym erization of styrene with the cyclic tripeptide cCLC.Styrene and the cyclic peptide S1,S3-cyclo(L-cysteinyl-L-leucyl-L-cysteine), from now on referred to as cCLC (or CLC when ring-opened), were chosen as mannerl monomers. They were reacted with a zep ratio of 946 in dimethyl sulfoxideTable 1. Polymerization conditions, give out, mo average molecular angle, polydispersity index, degradation temperatures, film over revolution temperatures and CLC content of the copolymers.CopolymerP1P2Styrene/cCLC/AIBNa)94/6/5 molar ratio94/6/2 molar ratioYieldb)40 %43 %c)2,5005,400PDIc)1.791.64Tdeg1198C215CTdeg2417C419CTg66C54CCLC contentd)6 mol%mol%1M in DMSO.After precipitation in wet and dialysis in MeOH.Determination by SEC in THF on the tush of polystyrene calibration.Determination by comparability of the integrated peaks in the 1H-NMR spectra of the isopropyl unit in CLC and the phenyl unit in polystyrene.(DMSO) at 70 C for 12h with twain divergent beats of azobisisobutyronitrile ( AIBN) affording the copolymers P1 and P2 (Scheme 1, Table 1). The copolymers were purified by precipitation in water and dialysis in wood spirit so as to remove, among the otherwisewise possible impurities, unreacted cCLC and/or cCLC-derived by-products. The overall yield was equal to 40% for P1 and 43% for P2. When analysed by means of size projection chromatography (SEC), the copolymer P1, obtained by development a higher amount of AIBN, resulted to have a number average molecular weight () of 2,500 and a polydispersity index (PDI) of 1.79. On the other hand, P2, synthesized by using a smaller amount of AIBN, moody out to have a higher molecular weight () and a comparable PDI of 1.64 (Table 1). The SEC traces of two copolymers are shown in the Supporting Information (Figure S1).The signals in the 1H NMR spectra of P1 (Figure S2) and P2 (Figure 1A) could be assigned to two styrene and CLC units. On the one hand, the peaks at 0.87 ppm and 1.10 ppm, visible also in 1H NMR spe ctrum of unreacted cCLC (Figure S3), could be assigned to the iso-propyl residue of CLC. On the other hand, the two groups of peaks at 1.54 and 1.92 ppm, and at 6.55 and 7.05 ppm correspond to the aliphatic and the aromatic protons of polystyrene, respectively. The remaining proton signals of CLC could be assigned with a belittleder degree of confidence due to the overlapping signals of solvent and/or polystyrene. By comparing the area underneath the peak at 0.87 ppm relation to the iso-propyl group of CLC with the area underneath the peak around 7 ppm congeneric to the phenyl ring of styrene, it was calculated that the peptide makes up 6 mol% of copolymer P1 and 9 mol% of P2. A different degree of co-monomer incorporation is not odd if one considers that the composition, like other properties of a polymer, is function of the chain length up to a critical value that depends on the specific system. It is then sightly to assume that such critical value for had not been reached i n the indue case. The topic has been extensively investigated and the interested reader is referred to the literature for details.6 In the diffusion-edited mode, in which the 1H NMR spectra were recorded applying a flow-compensated double-stimulated-echo with a gradient specialism up to 40%,7 a similar set of signals were order for the styrene and CLC units (Figure 1B and S2). By exploiting the fact that the translational diffusion in solution is size-dependent, the diffusion-edited NMR is able to discriminate between signals relative to low and high molecular weight species.8 Since only the solvent signals disappeared, the NMR data are a knock-down(prenominal) indication that the peptide is incorporated into polystyrene rather than forming a physical blend with it. It is cost noting that the diffusion-edited NMR is not quantitative and thus the molar composition of the copolymers could be determined only from the conventional 1H-NMR spectra. The analysis by MALDI FT-ICR mass s pectrometry9 substantiates these conclusions. A mass distribution (Figure 2) that accurately matches that of monocharged polystyrene chains each containing one CLC moiety and AIBN-derived isobutyronitrile groups as both and -chain ends was indeed obtained.Figure 1. 1H-NMR spectra of the copolymer P2 (A), 1H-diffusion edited 1H-NMR spectra of the copolymer P2 with gradient strength of 40% (B) in THF-d8, and the corresponding chemical structure (C).The results of all the other analytical techniques used to characterize the copolymers are in line with what found above. In the FT-IR spectra, for example, signals belonging to both styrene and amino acid moieties could be detected (Figure 3), which are (i) the bands at 1735 cm-1 (carboxylic group) and 1654 cm-1 (amide group) of CLC, which are also present in the FT-IR spectrum of unreacted cCLC and (ii) the signals of the aromatic carbon-carbon bonds (1492 and 1452 cm-1) and carbon-proton bond of the phenyl rings (736 and 696 cm-1) ofFig ure 2. MALDI FT-ICR spectrum of the copolymer P2 in the positive mode (A), the magnification of the spectrum in the mass range 4600 5000 with the equivalence of the theoretical and spy m/z (B), and the corresponding chemical structure (C).polystyrene. Furthermore, two lucid mass losses, one around 200 C and the other at 417 C, can be seen in the thermogravimetric (TGA) traces of the copolymers P1 and P2 (Table 1). By direct comparison with the TGA of the constituting materials, which show a mass loss at 208 C for unreacted cCLC and one at 418 C for pristine polystyrene, the two steps observed in the TGA of both copolymers could be assigned to the degradation of the CLC and styrene units, respectively (Figure S4). The derivative scanning calorimetry (DSC) thermogram of P1 displayed a glass transition occurring around 66 C, which is same to the glass transition temperature (Tg) of a polystyrene of prepared in our lab (66 C). Therefore, the amount of CLC incorporated in the pol ymer turned out to be too low to produce a measurable effect on the glass transition. In contrast, the amount of CLC in the copolymer P2 turned out to be sufficient to produce a change in the glass transition temperature, which was measured to be 54 C (Table 1). This is significantly lower than Tg of polystyrenes with (75 C) and (89 C) prepared in our lab. The DSC scans of the two copolymers P1 and P2 in comparison with polystyrenes with similar molecular weight are shown in Figure S5. The relatively high Tg of polystyrene is classically rationalized in terms of a reduced chain flexibility due to the bulky phenyl groups that hinder the revolution of the backbones carbon-carbon bonds. We surmise that CLC increases the chain flexibility by playing as a spacer between the styrene units, which results in the lowering of the glass transition temperature. It is worth noting that the Tg and the of (atactic) polystyrene are positively correlated up to , by and by which the Tg reaches a stationary value of ca. 108 C.10 Hence, the use of polymers with similar molecular weights is crucial for comparing, meaningfully, the glass transition temperatures.In absence of cCLC, the polymerization of styrene under the same experimental conditions afforded polymers with in 76% yield and in 73% yield for theFigure 3. FT-IR spectra of the cyclic tripeptide cCLC, the copolymer P2 and Polystyrene.lower and higher amounts of AIBN, respectively. In both cases, the molecular weights and reaction yields for pristine polystyrene were higher than those of the relative copolymers. This is not impress since disulfides are known to act as chain transfer agents in and to produce a certain retardation effect on radical polymerization.3 When the polymerization was repeated omitting the styrene from the reaction mixture, no polymer was obtained. Hence, cCLC, like other cyclic disulfides,2 does not homopolymerize in the presence of a radical initiator. This control experiment suggests tha t the peptide should not be blockily distributed along the polymer chain. Moreover, the possibility that the copolymer could be alternating(a) is ruled out by the fact that the degree of peptide incorporation is well below 50 mol%. It is therefore reasonable to assume that both P1 and P2 are statistical copolymers of styrene and CLC.Peptides like cCLC are peculiar in that they bear unbound amine and carboxyl groups while being cyclic. This makes them and their copolymers each cationic or anionic or zwitterionic depending on the pH. Charge-bearing polymers are practically reported as bioactive, e.g., hemostatic11 and/or antimicrobial12. Consequently, the class of materials here described index show bioactivity without containing intrinsically bioactive, amino acid sequences. Furthermore, apart from the specific functionalities, the peptide is apparent to confer improved degradability on the polyolefin. Experiments in both directions are shortly ongoing and will be the subject of another publication.In conclusion, we have shown that a peptide sequence can be incorporated into the backbone chain of a polyolefin via radical polymerization. Styrene and a cyclic tripeptide containing the disulfide bond were chosen as model monomers. Although cyclic disulfides are known to ring-open via the homolytic cleavage of the S-S bond in the presence of certain radicals, the result reported in this work is not trivial since the efficiency of such a reaction depends significantly on the disulfide used. Investigations are presently underway in order to explore the monomer scope, in terms of both the olefin and the peptide, the bioactivity and degradability of the copolymers, as well as the possibility to extend the process to reversible-deactivation radical polymerizations13 such as ATRP14. The preparation of a whole new range of functional and degradable materials is anticipated.ASSOCIATED CONTENTSupporting InformationDetailed experimental procedures as well as spectrosco pic, thermic and chromatographic data. This material is available free of charge via the Internet at http//pubs.acs.org.REFERENCES1.Lutz, J.-F. Brner, H. G., Modern trends in polymer bioconjugates design. Prog. Polym. Sci. 2008, 33 (1), 1-39.2.Sanda, F. Endo, T., Radical ring-opening polymerization. J. Polym. Sci. A Polym. Chem. 2001, 39, 265276.3.(a) Stockmayer, W. H. Howard, R. O. Clarke, J. T., Copolymerization of vinyl acetate with a cyclic disulfide. J. Am. Chem. Soc. 1953, 75 (7), 1756-1757 (b) Tobolsky, A. V. Baysal, B., The Reaction between styrene and ring disulfides copolymerization effected by the chain transfer reaction. J. Am. Chem. Soc. 1953, 75 (7), 1757-1757 (c) Suzuki, T. Nambu, Y. Endo, T., Radical copolymerization of lipoamide with vinyl monomers. Macromolecules 1990, 23, 1579-1582.4.Baughman, T. W. Wagener, K. B., Recent advances in ADMET polymerization. Adv. Polym. Sci. 2005, 176, 1-42.5.Hopkins, T. E. Pawlow, J. H. Koren, D. L. Deters, K. S. Solivan, S. M. Davi s, J. A. Gomez, F. J. Wagener, K. B., Chiral polyolefins bearing amino acids. Macromolecules 2001, 34, 7920-7922.6.(a) Mirabella Jr, F. M. Barrall Ii, E. M. Jordan, E. F., Jr. Johnson, J. F., Copolymer composition as a function of molecular weight and the effect of spiritual rebirth on this relationship. J. Appl. Polym. Sci. 1976, 20 (3), 581-589 (b) Mirabella Jr, F. M. Barrall Ii, E. M., Determination of copolymer composition as a function of molecular weight by preparative gel permeation chromatography and comparison to the rapid stop-and-go gpc/ir method. J. Appl. Polym. Sci. 1976, 20 (4), 959-965 (c) Mirabella Jr, F. M., Monte Carlo simulation of copolymerization and compositional inhomogeneity of copolymers comparison to experimental data. Polymer 1977, 18 (7), 705-711.7.Jerschow, A. Mller, N., Suppression of convection artifacts in stimulated-echo diffusion experiments. Double-stimulated-echo experiments. J. Magn. Reson. 1997, one hundred twenty-five (2), 372-375.8.(a) Chen, A. Wu, D. Johnson, C. S., Determination of Molecular Weight Distributions for Polymers by Diffusion-Ordered NMR. J. Am. Chem. 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A Christian Response To Divorce Theology Religion Essay

A Christian Response To disseverment theology Religion EssayI ab start quantify wonder if disjoin is in truth acceptable to god or if he re exclusivelyy considers it a iniquity. thither argon a number of factors to consider in making this decision. For the intent of this paper I am spill to review my personal life, reasons pot get dissociated, and some religious documentation and opinion to draw hopefully reach a reasonable conclusion.I was raised by my aim and my step father, my p atomic number 18nts divorced when I was two years old. I go to a Catholic School from kindergarten to the fifth grade I dont reject attending any religious classes even though the school was decently next to our Church. We went to Church every Sunday and that is the only time I remember learning anything about divinity. My mother exchanged my last name on my school records so it would be the same as hers. She said it was retri scarceory easier that trend but I wonder if that was the rea l reason, be flummox I inhabit now that Catholics view divorce as un legitimate behavior so they whitethorn birth been pressuring her. It was around this time that my mother decided she required to fetch a new religion as well. She told me we were converting to Judaism because she posited a religion that was more similar a way of life than Catholicism. I didnt re totally(prenominal)y c be adept way or the other at that point in my life I was skillful a kid. Divorce was a pretty normal occurrence in my family. My grandmother had eightsome siblings and three of her sisters, that were still living, were all divorced, they were also Catholic. My mothers only sibling my auntie was also Catholic and divorced. I didnt know until I got older that they were all considered sinners at Church. My older cousin knew because we went to the same school but she neer told me. I pass been married for twenty years and have never been divorced, non that I have never thought about it, sig htly because I would rather reasonable work out the problems than start over. I couldnt imagine that if I chose to get a divorce I would be returnting a sin against God. just about of the time I actually look at that it may bring me closer to God which is the opposite of sin so how could that be sinful.The divorce rate has declined slightly since 1982 but the number of divorces ar still historically high (Alan J. Hawkins). Estimates atomic number 18 that about 40% of number whizz unions and an even higher rate of second labor unions end in divorce. Some policy makers are trying to change both marriage and divorce laws to combat in the hope of bringing the divorce rate go through (Alan J. Hawkins). Another way to combat divorce is to work on marriage and in that respect are many faith based programs that offer workshops, retreats and marriage based enrichment programs. In some states chair Florida for example you have to ar suspire three days to obtain your marriage p ermit unless you attend pre-married advise, and in Illinois you have to wait 60 days unless youve attended 4 hours of pre-marital counseling (Alan J. Hawkins). Some states are even diverting m aney from their temporary helper to Needy Families Funds to support pre-marital counseling. In the State of Florida marriage education is a class just like drivers education, and in Adrian County Michigan one court pass on not issue a marriage license without pre-marital education to anyone within its jurisdiction (Alan J. Hawkins). Some people feel that it is just too easy to get a divorce now days, and perhaps a change in legislature would keep marriages together. Creating tax reforms that will benefit married couples and differentiating the ease of no-fault divorce laws, especially when there are children involved are two ways to combat the problem. The trend seems to be to keep the sanctity of marriage for economical reasons as well as spiritual reasons but how do the causes for divor ce play into this dilemma? The gratuity ten reasons I implant were infidelity, poor communication, change in priorities delinquent to having kids or job changes, lack of commitment to the marriage, sexual problems, addictions, failed expectations, somatogenetic and aflame abuse and the number one reason money (McCloud). These are all things that we have to go through to choke and some look like reasonable reasons to file for divorce but for me to evaluate these reasons I have to figure out if they are harmful or sinful.53% of American marriages end in divorce due to infidelity (Infidelity Facts). People trickster on their spouse for many reasons but men tend to denounce because of sex. They want to spread their seed or loose sexual craving for their wives especially after childbirth. Ive even heard it said that men are not made to be monogamous, or that their spouse is no long- give wayd as much fun as she was when they married. Some men commit adultery to feed their ego because they feel a need to be in control or to feel that they have made some type of conquest. Women on the other hand cheat more times than not because of the emotional deficiency they suffer in the marriage. Regarding poor communication I found a quote that summed it up pretty nicelyLack of communication is one of the leading causes of divorce. A marriage is on the rocks when the lines of communication fail. You cant have an effective relationship if either one of you wont discuss your feelings, cant talk about your mutual or personal issues, will keep your resentments simmering under wraps, and expect your spouse to guess what the whole problem is about (Panse).Having a family definitely changes the kinetics in any household and all big changes affect the way a husband and wife interact with one another. It will go against on the time you get to spend together, your finances will be affected, and your focus is altered. Some people get married because they feel they have to either the biological clock is ticking or they have a child out of wedlock, or maybe there is pressure from family or colleagues to tie the knot. Intimacy especially sexual can be a deal breaker only if you permit it. In todays society there are surgeries and so many products available to enhance sexual input and drive that it seems easy to overcome. Most addictions can be treated in some type of medical forum but the key is in recognizing there is a problem and getting the treatment. Some people dont take any time to get to know the person they are marrying in the beginning they get married or tend to think they can change what they dont like about them. They are too often looking for a quick solution when it does not work out (Panse). Abuse is a horse of a different color Ive seen firsthand what mental and physical abuse does in a marriage. It tears people down and strips them of their egotism confidence. It does not seem rational to do this to another homophile beingness. Mo ney, the fall of all evil, I see the harm in all of these actions but I believe these are things God will forgive you for if you beseech him to and as long as you discontinue the action. If the reasons for divorce are considered sinful it would seem to me that if you get rid of the sin causing the divorce you would no longer have reason to divorce.My findings on rationale for divorce may seem rationale to me but there are others who believe differently. The book of account for one is very clear on how God feels about divorce and there are various sacred discussions to prove it I hate divorce, says the victor God of Israel, and I hate a mans covering himself with violence as well as with his garment, says the Lord Almighty. So guard yourself in your spirit, and do not break faith (Malachi 216). What God has joined together, let man not separate . . . I ascertain you that anyone who divorces his wife, except for marital unfaithfulness, and marries another cleaning woman commit s adultery (Matthew 196, 9). Anyone who divorces his wife and marries another woman commits adultery against her. And if she divorces her husband and marries another man, she commits adultery (Mark 1011-12). If any fellow has a wife who is not a believer and she is willing to live with him, he must not divorce her. And if a woman has a husband who is not a believer and he is willing to live with her, she must not divorce him (1 Corinthians 712-13) (Brittan). Some people are of a mind that you need to do whatever you have to do to check mark married. They would even go so far to say that if you are already divorced for an unbiblical reason and you were a Christian when you got divorced, then you need to face the awfulness and seriousness of your sin (Brittan) and you shouldnt pretend that is was not falsely in the eyes of God. Additionally they give warning in scripture that you should not ask for Gods grace when you get divorced because that too is a sin They are godless men, wh o change the grace of our God into a license for immorality and deny the Nazarene Christ our only self-directed and Lord (Jude 4) (Brittan). I found one ministry that believes based on pay off that staying in a non-feeling relationship and enduring the pain was worth going through because of the growth in the Lord they gained by doing so (Matthews). With all of the documentation in the Bible a good Christian would just do what the bible said and not get divorced, but I still wondered if there were ever any exceptions.There is also scripture to support divorce under certain circumstances I tell you that anyone who divorces his wife, except for marital unfaithfulness, and marries another woman commits adultery (Matthew 199). Jesus said God only allowed divorce in the Old will because of the hardness of our hearts (Matthew 198). If you are married to an unbeliever, it is Gods desire for you to stay married (1 Corinthians 712-14, 16 1 Peter 31-6). To the rest I say this (I, not the L ord) If any brother has a wife who is not a believer and she is willing to live with him, he must not divorce her. And if a woman has a husband who is not a believer and he is willing to live with her, she must not divorce him. For the un accept husband has been sanctified through his wife, and the unbelieving wife has been sanctified through her believing husband. Otherwise your children would be unclean, but as it is, they are holy. But if the unbeliever leaves, let him do so. A believing man or woman is not bound in such(prenominal)(prenominal) circumstances (1 Corinthians 712-15) (Brittan). Now all of this made me err on the side of caution if there are exceptions for divorce not being a sin in certain situations maybe I could find some documentation to counter all divorce as a sin. I ran across an article written by a Christian woman who had gone through a divorce and she admitted to being one of those Christians who frowned upon people who divorced. She commented on the spirit ual crisis she endured and the questions she as a believer asked herself. She cherished to know if there was a Godly way to get through it, where to find God in the process, and if somehow this changed what type of Christian she was (Carsten). In doing so she found comfort in the word and a a few(prenominal) passages that led her to the conclusion that when Gods says he hates divorce he is saying it out of pity because of the destruction it causes. God wants us to be married for the resistance and safety that it gives us and for the love it provides us. He cares more about human beings than he does an act like divorce (Carsten). Jesus showed us on many occasions how important rule property was in par to the needs of a person. One occasion in the Bible that confirms this is in the book of MatthewAt that time Jesus went through the grainfields on the Sabbath. His disciples were empty and began to pick some heads of grain and eat them. 2 When the Pharisees saw this, they said to him, come out Your disciples are doing what is unlawful on the Sabbath. 3 He answered, Havent you read what David did when he and his companions were empty-bellied? 4 He entered the house of God, and he and his companions ate the consecrated breadwhich was not lawful for them to do, but only for the priests. 5 Or havent you read in the Law that on the Sabbath the priests in the temple desecrate the day and yet are liberal? 6 I tell you that one greater than the temple is here. 7 If you had known what these terminology mean, I desire mercy, not sacrifice, you would not have condemned the innocent. 8 For the Son of earthly concern is Lord of the Sabbath. (Matthew 121-8)In conclusion I have found that some Christians take the word of God and use it in such a way that they turn Gods condemnation of acts into condemnation of people. They disregard his compassion for people and this discounts the very foundation of their religious faith, Jesus Christ. They speak of sin as sacraments against God when the sin is whatever you do that takes you away from God and causes you to lose faith in him. If you divorce and fall away from God in the process then you are committing a sin, and sinful acts to cause divorce can be forgiven but you have to commit yourself to keeping your faith and staying from those things that you ask Gods forgiveness for. In the beginning I wondered if divorce was acceptable to God or if it were a sin. I am final that it is acceptable and it is not a sin because divorce in and of itself is not the sin, the sin of divorce only occurs when you divorce God.