Technological progress is a process of replacement and renewal, which Essay

Technological progress is a process of replacement and renewal, which implies for new technology to add value, it must make pre - Essay Example For instance, this was evidences in the 20th century when the agricultural technological process shifted the agrarian revolution to an industrial production workforce in the US. As a result of the progress, US farmers significantly lost their vocation as well as career even if the productivity per acre was enhanced dramatically and the production volume, which amplified with technology. In such situation, farmers are therefore what the industry would refer to as ‘tech-losers’. As the technology ubiquity spreads development worldwide, it usually establishes two categories of people: tech-winners as well as tech-losers. Tech-losers in most cases of cannot be incorporated into the changing technological environment. Many are the times they fear losing their jobs as well as their lifestyles as a result of technology progress (Sood and Tellis, 2005). This per evaluates the whole aspect of technological progress with a clear focus on the manner in which a manager would think a bout the situations if they occur in a mid-sized company. It also evaluates various ways in which managers might try to resolve the issues that arise in the process as well as the indicators that would guide them. Manager’s Perspective on Technological Progress Technological progress is a very paramount issue that managers often evaluate in their companies. Often, with technology surfacing at breakneck speed, it is becomes apparent that no single manager would predict what's around the next corner. More importantly, a particular type of technology has to be forgotten if innovations are made. Nevertheless, life circle remains constant. Usually, when a novel high-tech establishment is born, the older one has to die. Sood and Tellis (2005).established that at times, the loss is a good thing because it brings easier way of doing things as well as elevating companies’ profitability. Nonetheless, sometimes, the departure swirls bittersweet feelings especially if the IT emplo yees had been used to a particular mode of operations. As an IT/IS Manager, major concerns include embracing a system that do not lead to significant errors, curbing identity theft through hacking as well as enhancing workers cooperation among others. Often, IT managers in companies construe technological progress as a path which has one-dimensional as well as with milestones on it. Research indicates that managers agree that the process helps everybody to crosswise especially if one has the intellectual capacity to do so. However, they take this not to be an accurate description. For instance, taking into consideration a flat plane which has two dimensions and without milestones, one would notice that there are outstanding points of accomplishment spotted all over it. Overlay on such a flat surface would be a structure of a branching tree; which signifies culture's progress. Often, culture begins at some point in lieu of its preliminary conditions. Therefore, as it moves, it has to touch on some of the potentials on the flat surface but not all. This implies that is a possibility of getting a new technology which becomes successful replacing an old one. For instance, after innovation, Boeing 707

Clinical Biochemistry Essay Short questions(degree)

Clinical Biochemistry Short questions(degree) - Essay Example To diagnose Cushing’s syndrome levels of free cortisol are checked in the urine. Levels of cortisol in the saliva and serum are checked at midnight to confirm the disease. Dexamethasone which is a synthetic glucocorticoid is administered which leads to decreased cortisol if the increased levels are due to a tumor in the anterior pituitary. Addisons disease is characterized by insufficiency of cortisol which is caused mostly due to production of antibodies against the adrenal gland within the body. This leads to decreased glucose metabolism in the body causing hypoglycemia and it can prove to be fatal in periods of stress and mild infections. Hyperpigmentation is also seen. Levels of free cortisol are checked in the urine and serum and saliva levels of cortisol are checked at midnight. Adrenocorticotropin hormone is then administered and levels of cortisol are measure. If they do not rise it indicates the insufficiency of the adrenal gland and rules out any problem with the ant erior pituitary. Radioimmunoassay is a technique in which a known quantity of labeled antibody and a labeled antigen is taken. This known complex is added to with unknown quantity of serum containing the antigens which needs to be measured. The unlabelled antigen displaces the labeled antigen and combines with the antibody. This unlabelled antigen and antibody is measured. Different quantities of serum are taken and added to the labeled complex and a graph is plotted and the values for the antigen in serum are measured. This method is extremely sensitive and specific because the antigen and antibody complexes formed are very specific for each other. It is also very sensitive because it can detect small amounts of antigen. The results obtained are accurate if many samples are taken. To improve accuracy it is important to purify the sample as well the reactants from foreign particles to prevent any false results. More samples

Proctor and Elizabeth change Essay Example for Free

Proctor and Elizabeth change Essay How does the relation ship between Proctor and Elizabeth change from the beginning of the play until now?  In the beginning of the play John speaks about Elizabeth once to Abigail. Abby has said that Elizabeth was a cold and sickly wife. John says to her that she has no right to speak of his wife in such a manner and renounces the comment about her being sickly. He does not, although, dismiss Abbys charge that Elizabeth is a cold wife. But, he means it is because of him that she is this way. In the beginning of Act 2 there was a great feeling of detachment and tension in the Proctor household. We see John trying to start a conversation with Elizabeth and she only gives him short answers to please him. Then the tide turns to her questioning him and he is the one that becomes short with her because she is requesting that he go to Salem and confess that Abigail is liar. To do that, though he must confess his sin. During most of the scene theyre not sure of each other. She doesnt quite trust him, but she loves him. Proctor believes himself to be an abomination in his own eyes and according to his own high standards and especially in the eyes of God. He only wants his wifes trust in him restored and for her to love him again. At the end of the act is where you feel the great love that they hold Proctor holds for her. When she is arrested he nearly gets into a fight with Cheever because he is going to chain her. He knows that she is being arrested because of his mistake. He verbally fights with Hale over the evidence as he promises to bring her home soon. They need to protect each other now. In Act 3 you see that he is doing his best to fulfill his promise to free her from that jail and have all the charges acquitted. He goes to the court with Mary Warren and was trying to convince Dansforth that she was innocent when Mary Warren betrays Proctor to save herself from the wrath of Abigail. He even tells the secret that brings him the greatest pain, to save his wife. It is her that the reader is assured of Elizabeths love for Proctor when she lies for him to protect his name. She lied and just the moment before hed told Dansforth that his wife never lied. But she did for him unaware that Proctor himself confessed ad only putting then deeper into trouble. Yu are again reassured of Proctors great love for her when he tells the court of his disloyalty to his wife. This shows that he is adamant to save and free his wife. In Act 4 Elizabeth is asked to speak to Proctor in the hope that she will be able to persuade him to lie and save his life. Even the Reverend Hale is begging her to make him confess and he sworn to truth in his bond with the Lord. When she says that she will try to see what he can do they are left to themselves. This is the first time that they have seen each other in three months and greet each other in a great display of love and sorrow for each other. Their love is one that is everlasting. He asks her what to do, he is willing to go with her choice, even if it were that she wanted for him to be honest and die. He would have done it just because she had asked for him to. She tells him instead to choose for himself because she feels that it is not her place to judge him. She tells him that she will love him regardless of his decision. Their love is restored even though they have not been able to see each other they both understand that they both share some blame even if it the most remote amount of blame, for Elizabeth.

Role of Charged Lipids in Membrane Structure

Role of Charged Lipids in Membrane Structure An observation of BMC Bioinformatics Journal  on the Role of charged lipids in membrane structure In this journal, the experimenters make observations to note in saying that charged lipids play and important role in what they call a phenomenon. This includes lipid protein binding, membrane potential and membrane permeation (Pà ¶yry Vattulainen, 2016). In this journal the experimenters note the following; effects of charged lipids on membrane properties and effect of charged lipids on membrane proteins (Pà ¶yry Vattulainen, 2016). They then go on to note what they call the interplay between charged lipids and Nano sized molecules or particles (Pà ¶yry Vattulainen, 2016). The objectives of the experimenters in this journal review and discuss the recent findings that describe charged lipids as active players in the membrane system (Pà ¶yry Vattulainen, 2016). The experimenters in this journal will discuss how charged lipids affect membrane properties. Then further expand on how their charged nature comes into play in lipid-protein interactions (Pà ¶yry Vattulainen, 2016). In further detail the experimenters focused on the recent simulation work done in the field and integrate the work in recent simulations with that of their own observations to experiments (Pà ¶yry Vattulainen, 2016). The tested hypotheses in this journal is represented as testing Phosphatidylcholine (PS) for key players in preprogrammed cellular death as discussed by computer generated simulations about the properties of charged lipids (Pà ¶yry Vattulainen, 2016). Who in turn also plays many roles in a variety of different processes. The experimenters noted that the null hypothesis was testing phosphatidylinositol (PI) which is often involved in the modulation of membrane receptors and their signaling processes and testing to see if there was any significant difference between the two variables due to their role in many biological processes (Pà ¶yry Vattulainen, 2016). The materials and methods the experimenters introduce in this journal are preexisting scenarios. Having done their own research on charged lipids the experimenters inputted their data to continue the experimentation. The experimenters in this journal mention that that dependent variables are the various simulations of the (PS) (PI) that can get to the importance of atomistic details (Pà ¶yry Vattulainen, 2016). The experimenters used the force fields for complex charged lipids as the independent variables to change or manipulate the experiment. Specifically mentioning than any model can only be as good as the underlying force field referencing Insight into the Properties of Cardiolipin Containing Bilayers from Molecular Dynamics Simulations, Using a Hybrid All-Atom/United-Atom Force Field. In this journal the experimenters reference several terms. These terms represent a few of the many biologically relevant processes where charged lipids are highlighted in the importance of understanding the function of charged lipids in cells (Pà ¶yry Vattulainen, 2016): Phosphatidylcholine or (PS): is one of the key players in programmed cell death and phosphatidylinositol or (PI): which is often involved in the modulation of membrane receptors and their signaling processes. Using already existing simulations the experimenters manipulate the force fields of the lipid bilayers in order to test the hypotheses. In this journal the results show that the experimenters have failed to reject the null hypothesis in determining that the simulation data has shown in what they refer to as a convincing manner that specific details are often important in determining the properties of charged lipids. It is not only the charge that matters. If it did, then lipids such as PS and PI would largely have the same effects, which is the not the case (Pà ¶yry Vattulainen, 2016). The experimenters in this journal note that the (PI) lipids have been observed to cluster around several human RTKs and around EGFR and state the same could be said about the (PS) except that the (PI) has a better chance in interacting with proteins than the latter (Pà ¶yry Vattulainen, 2016). The experimenters also note that the (PI) chemical details matter as well because the different properties of the (PI) lipids show. In conclusion the experimenters mention that (PS) (PI) have both had their fair share of attention in biology. The experimenters continue to state that when (PS) (PI) are incorporated into bilayers they have been shown to increase the ordering of phosphatidylcholine (PC) chains and state they stiffen the bilayers. The experimenters making a considerable note; state that there has been a great deal of a lack of attention being paid to diffusion. Or as they put it dynamics of charged lipids. Being specific in noting that there is a clear void for future research to fill (Pà ¶yry Vattulainen, 2016). In this journal the experimenters mentioned that future work would be more than welcomed in this field stating that this field of study for complex charged lipids is not a simple feat when pertaining to force fields (Pà ¶yry Vattulainen, 2016). Comparatively speaking, the experimenters state that it is difficult to find commonalities especially when the models being tested in various studies are based on different force fields. Lastly and concluding the journal the experimenters state that studies based on the same force field work would most likely have more reliable trends that are revealing and would be most welcome. References Cited Pà ¶yry, S. Vattulainen, I. (2016). Role of charged lipids in membrane structures Insight given by simulations. Biochimica Et Biophysica Acta (BBA) Biomembranes, 1858(10), 2322-2333. D. Aguayo, F.D. Gonzalez-Nilo, C. Chipot, Insight into the properties of cardiolipin  containing bilayers from molecular dynamics simulations, using a hybrid all-atom/united-atom force field, J. Chem. Theory Comput. 8 (2012) 1765-1773. Abstract Reference: http://dx.doi.org/10.1016/j.bbamem.2016.03.016

All American Tragedy :: essays papers

All American Tragedy Without a doubt, most Americans can distinctly draw a picture in their minds of John Wilkes Booth†¦ The Civil War had ended five days previously with the surrender of General Lee. President Lincoln and the first lady had decided to take a night off and see a stage play at the Ford’s Theatre. An obviously enraged young actor preceded into the stage box a kills Lincoln, and then exits the theatre by jumping on to the stage and escaping through the back where a horse had been waiting. Booth tried to escape for good, but within two weeks he was killed in a violent ordeal near Bowling Green, VA. From the moment the shot rang out in that theatre, the American people knew who Booth was. An interesting note was that if Lincoln had seen the men who avenged the South, he would have recognized Booth immediately. This would have not came as a surprise to many, since John Wilkes was one of the most recognizable men in the country, according to the National Preservation Society, or NPS. Lincoln was an avid theatregoer, and on Nov. 9, 1863, after Booth had preformed The Marble Heart, the President asked around back stage if he could meet with the star. Booth, being the outspoken supporter of the South that he was, declined the offer. This was the first major clue of Booth’s strong dislike of Lincoln. Booth was surely not in need of attention. â€Å"Thought the Civil War, the Northern newspapers fell over each other as they showered the young actor with praise.† (NPS 2) Chris Mynk 71567 How then is it possible to reconcile the two conflicting impressions of John Wilkes Booth? The best answer would probably be that one must understand the environments in which produced him- the world of theater and the struggle between the North and the South. Booth was raised in a theatrical family, where Shakespearean works were recited as often as the bible. â€Å"As the struggle between the States wore on, the battlefields at Gettysburg and Antietam must not have seemed very different than the battlefield of Richard III.† (Williams 578) In his career, Booth died a dramatic death hundreds of times. Many scholars have voiced the opinion that the assassination was, perhaps, Booth’s greatest "performance". In 1899, Joel Chandler Harris, a contemporary of Booth's who would become famous for his Uncle Remus folk tales, wrote that Booth "had all the elements of genius but seemed powerless to focus them.

Polyethylene :: Polymer Plastic

German Chemist Hans von Pechmann first synthesized Polyethylene by accident in 1898 by heating diazomethane. His colleagues characterized the waxy substance polyethylene due to the fact that they recognized that it consisted of long ethene chains. It was then first industrially synthesized by accident in 1933 by applying extremely high pressure to ethylene and benzaldehyde. Over the years, development of polyethylene has increased due to the additions of catalyst. This makes ethylene polymerization possible at lower temperatures and pressures.1 Polyethylene is a polymer that is made of a long chain of CH2 monomers bonded together. It is one of the most commonly used polymers in everyday items. Grocery bags, soap bottles, children’s toys, and even bullet proof vests are all made from polyethylene.2 This polymer is very versatile and can be used in many materials but this all depends on the way that the polymer is chemically made or enhanced. There are many different types of polyethylene classified by density and branching. 2 Higher density polyethylene is very linear and has no branching. Lower density polyethylene is a result of some of the carbon atoms bonding with other polyethylene chains instead of hydrogen atoms. Cross-linking is another way in which the polymer can be made stronger. This involves ultraviolet radiation that bombards the polymer with electrons and formulates bonds between the molecular chains of the polymers. This is like linear polyethylene but different in that it is more impact resistant, and it has a much higher density. This allows it to be stored or be used with different chemicals that would normally cause the polymer to desolve.3 This can start to become a problem because as the polymer continues to become chemically enhanced. So the ways of dissolving and recycling the polymer become more difficult. Other alterations such as dying the polymer are less cost efficient to recycle and can be more difficult as well. There are certain types of HDPE (high density polyethylene) that are blown into shapes such as bottles. Different chemicals are used in this process and therefore have to be separated into their own category when recycling. The reason people have moved away from landfill dumping and moved towards recycling is due to the fact that it is much more cost effective to recycle compared to paying engineers and environmentalist to designing landfills.4 The HDPE can also be mechanically recycled through curb side pick ups.

History Class Presentation Essay

It is believed that Prussia achieved and secured dominance in Germany because of the role of Bismarck, who got rid of the opposition in the Parliament, strengthened the Prussian army, exploited Prussia’s economic development and won three wars to secure the unification of Germany. However, it is also argued that international scenes too, helped Prussia make a mark as the strongest nation in Europe. Firstly, Prussia managed to secure dominance in Germany due to Bismarck’s action to get rid of the opposition in the government in order to pass the Army Bill. The Army Bill was needed to prepare for the army by increasing their size, re-equipping the army as well as to increase the years of service from 2-3 years. Bismarck got hold of the Army Bill by withdrawing it from the parliament and collected taxes to fund the army. Thus, Bismarck’s role that got rid of opposition in the government made Prussia the strongest nation in Germany. Secondly, Prussia achieved and secured dominance in Germany by strengthening the Prussian army. He used the Army Bill to finance the army. Furthermore, he was also helped by War Minister Von Roon who ensured that Prussian army were increased in number, better trained and well armed. In addition, General Helmuth Van Moltke, Chief of the General Staff helped by becoming the brain of Prussian army, laying plans for mobilisation and military operations. Therefore, Prussia achieved and secured dominance in Germany by strengthening Prussian army. Thirdly, Prussia’s economic exploitation by Bismarck was believed to be one of the reasons why Prussia had managed to achieve and secure dominance in 1848-1871. Bismarck had managed to manipulate the already-existing custom union known as Zollverein that encouraged free trade within the nation where international tariffs was abolished. Currencies, systems of weights and measurements were unified to promote easy trading within the Zollverein states. Number of railway networks increased and they become more efficient providing better access to coal, iron and steel transportation. Hence, Bismarck’s economic reform became one of the reasons why Prussia was dominant in Germany. Lastly, Prussia had secured its dominance and made a mark as one of the strongest nation in Europe by winning three wars; Danish War, Austro-Prussian War and the Franco-Prussian War. Firstly, Danish war broke out subsequently after King Fredrick of Denmark’s decision to incorporate Schleswig with Denmark which violated the Treaty of London (1852). Despite the disunity and hostility against each other, Austria and Prussia had worked hand-in-hand to defeat Denmark. As a result, Austria took control over Holstein and Prussia, Schleswig. During the Austro-Prussian War, Prussia had provoked Austria to war by proposing a reorganisation in German Confederation which will exclude Austria, on June 10. Due to the diplomatic isolation of Austria and their lack of alliances, Prussia had the upper hand with modern weapons which resulted in Austria’s defeat and the signing of Treaty of Prague (1866). Franco-Prussian War was a result of Bismarck’s action who took advantage of the Bad Ems Telegram which he edited with intention to insult France until they demanded war. The well-organised Prussian army with its allies easily destroyed France and even gained control over Alsace-Lorraine. Therefore, Prussia’s victory in these three wars was one of the reasons why Prussia was the strongest nation in Europe during the period. However, it is also argued that the international scenes such as Britain, Russia, Italy and Austria, too, helped Prussia make a mark as one of the strongest nation in Europe. Firstly, Britain’s no-intervention policy which is also known as an isolationist foreign policy was one of the reasons why Prussia had managed to secure its dominance in Germany. Britain was more concerned about her economical interest than her political interest. During both the Danish and Austro-Prussian wars, Britain took no action at all despite Denmark’s accusation for violating the Treaty of London (1852) prior to Danish War. Furthermore, Britain’s hostile relationship with France was clearly not an advantage to the French during the Franco-Prussian War. This, Britain’s no-intervention policy had helped Prussia to secure dominance in Germany. Moreover, Russia’s recovery from the Crimean War (1855) was one of the reasons why Prussia became dominant in Germany. During the Austro-Prussian and Franco-Prussian wars, Russia had remained neutral as an exchange to Prussia’s neutrality during Russia’s Crimean War against France and Britain. Alexander Tsar had willingly paid Prussia for her neutrality in all affairs involving Prussia. Hence, Russia’s neutrality during Prussia’s wars against France and Austria was one of the reasons why, Prussia had managed to secure dominance in Germany. Thirdly, Italy’s involvement was one of the reasons why Prussia had managed to secure dominance in Germany. In the Austro-Prussian war, Italy lent a helping hand to Bismarck to defeat Austria. Prussia took the advantage of Austria’s weak defence when Austria had to deploy some troops to deal with the disturbance and riot in the Piedmontese-Austrian border which was organised by Italy. Furthermore, Italy was occupied with her own unification process whilst Prussia was securing its dominance in the German nation. Therefore, by having alliance with Italy during the Austro-Prussian war, Prussia achieved and secured dominance in Germany. Lastly, both Austrian’s assistance and situation had assisted Prussia to become one of the strongest nations in Europe. Despite the hostility with Austria, Prussia had co-operated together with Austria in the Danish War to gain Schleswig. In return, Austria governed Holstein. Moreover, Austria was weakened after the war against Prussia in which they were defeated due to their incapability to cope against Prussia’s well-organised military system and modernised weaponries. Thus, Prussia managed to achieve and secure dominance with Austria’s help and by taking advantage of Austria’s weakened state. In conclusion, Prussia achieved and secured dominance in Germany due to the role of Bismarck who got rid of opposition in the Parliament, strengthened Prussian army, exploited Prussia’s economic development and won three wars. In addition, international scenes too, helped Prussia make a mark as the strongest nation in Europe.