Ipso, Meso, and Peri Substitutions in Organic Chemistry

The prefixes ipso-, meso-, and peri- describe ring substitutions in organic chemistry. They are part of the IUPAC nomenclature used to specify the position of any non-hydrogen substituents in an aromatic hydrocarbon. Ipso Substitution The ipso- prefix is used when  two substituents share  the same ring position in an intermediate compound. This could occur  in an  electrophilic aromatic ring substitution. Meso Substitution The meso- prefix is used when  substituents occupy a  benzylic  position when the  first carbon covalently bonds  adjacent to a benzene or other  aromatic  ring. It is seen in acridines and calixarenes. PeriSubstitution The peri- prefix is used to describe substituents at the 1 and 8 positions. It is seen specifically in naphthalenes. In addition to ipso, meta, and peri, there are two other ring substitution patterns you may encounter. There is the ortho, meta, and para substitution and the cine and tele substitution. Cine and Tele Substitution In the cine- substitution, the entering group is positioned adjacent to the one that was occupied by the leaving group. This is seen in aryne chemistry. In the tele- substitution, the new position of the entering group is more than one atom further away on the aromatic ring.

Guernica By Pablo Picasso And Executions Of Art - 879 Words

When comparing the two art pieces of art, â€Å"Guernica† by Pablo Picasso and â€Å"Executions of the Third of May† by Goya, you may interpret the underlying meaning to be the same. However, the era in which these paintings were created are noticeably different as well as the techniques. The history in which these two works were created is intriguing. The implicit and explicit similarities and differences between these two historical pieces are astonishing. â€Å"Guernica†, which was created in 1937 was Picasso’s reaction to the bombing of a Spanish city that the name of the work derived its name from. During the Spanish Civil War, Germany had supported the Nationalists side and provided them with weapons and other supplies, so when Adolf Hitler†¦show more content†¦A mother cries in agony while holding a small child in her arms, most likely one of the many victims who lost their lives. On the far right side of the painting, you can see a woman o n her knees, examining the skies as if she is expecting another bomb to fall from the sky. It is evident that her right leg is already injured. Violence and anguish is displayed in this famous piece of art. Francisco Goya was a Spanish Romanticist painter who was born 1746 and died in 1828. Although he was born near Saragossa, he was living in Madrid when he painted â€Å"Executions of the Third of May†. The famous painting refers to 1807 when Napoleon Bonaparte wanted to make an alliance with King Charles IV in order to conquer Portugal, but his true plan was to take over Madrid. When the French troops stormed Madrid, Napoleon claimed that they were just passing through, but when they began taking over, king Charles IV soon realized the alliance was a hoax. Soon after Napoleon’s brother, Joseph Bonaparte became the new king of Spain. The siege lasted three days and on the second day a rebellion broke out and on the third day, the rebels were slaughtered. It is said that Goya himself witnessed the murders from atop the hill of Principe Pio and once the massacre had ended he began making sketches of the bodies under his lantern. Although the story is not proven, it is clear that it affected him greatly. French soldiers stand in rows, aiming their rifles at what seems to be the focalShow MoreRelatedDifferences Between Modernism And Modernism1174 Words   |  5 Pagescreativity. The romantic period focused on the creativity of an individual’s art. However, after reading the two lectures, I believe the modernism period is when artists really started to discover innovative ways to create art. There were many artists in each genre of painting, composing, and poetry who had strong influences during the modernists period. The one artist who stuck out the most to me was Pablo Picasso. 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The work portrays five nude female prostitutes from a brothel on Avinyà ³ Street in  Barcelona. Each figure is depicted in a disconcerting confrontational manner and none are conventionally  feminine. The women appear as slightly menacing and rendered with angular and disjointed body shapesRead MoreArt History Study Guide3003 Words   |  13 PagesStephens/ Virgin and Child, Melun Diptych * Limbourg Brothers – Tres Riches Heures of the Duc de Berry * Flanders * Bosch, Hieronymus –Garden of Earthly Delights, Creation of Eve, Hell * Bouts, Dirk –Wrongful Execution of the Count; Justice of Otto III * Broederlam, Melchoir –Retable de Champmol Annunciation/Visitation/Presentation/ Flight to Egypt * Campin, Robert –Merode Altarpiece * Christus, Petrus –Goldsmith in his Shop Read MoreIwc1 Literature, Arts and Humanities Essay10028 Words   |  41 Pageseffect to cause). Question 5: Multiple Choice Why is architecture considered an art? a) Because architecture provides shelter to humans b) Because architecture is often decorated with art forms c) Because architects use perspective in their work d) Because architecture is concerned with the aesthetic effect of structures in their environment Feedback: The correct answer is d. Architecture is considered an art because it is concerned with the aesthetic effect of structures in their surrounding

Computing Security Issues Addressing Cloud -Myassignmenthelp.Com

Question: Discuss About The Computing Security Issues Addressing Cloud? Answer: Introduction The Four Seasons Greenhouse and Nursery of Colorado is a small business organization that has been profited by the introduction of new point of sale system in the year 2008. The system compiled all the essential business data for improving the decision making process of the Nursery. The point of sale system allowed the owners to track the business data and sales transaction in real time that helps in enhancing the estimation process (refer to appendix 1). This system has considerably helped the organization in increasing the amount of profit as previously, with the system of manual record keeping the amount of profit of the nursery was negligible. The timely availability of the product information helps in proper maintenance of the inventory (Laudon and Laudon 2016). The report gives an overview of the different advantages, disadvantages and risks associated with the new point of sales system. Advantages and Disadvantages of POS system The advantages of the new point of sales system are as follows (refer to appendix 2)- The new point of sale system eliminates the need of manual tracking of the sales by allowing the owners to track the transactions immediately. Therefore, the new point of sales system makes the tiresome process of compiling the sales history considerably simple. Furthermore, it eliminates the possibility of error in updating the sales details manually (Stadtle 2015). The new point of sales system increases the accuracy of the financial data of the system. With the implementation of the system, the manual entry of the sales transactions is eliminated as well. This reduced the number of errors in calculation of the financial data and associated with the sales. The new Point of sales system furthermore helped in carrying out the vital tasks of business such as estimation of inventory and sales in a relatively lesser time in comparison with the manual data keeping system. This is because the details of the sales and the inventory are updated in real time (Diallo, Rodrigues and Sene 2012). The accurate and flawless data keeping by the point of sales system have considerably helped the organization with their business decision-making process. The accurate inventory count and negligible guesswork have furthermore helped the business in operating in a leaner inventory unit. A proper report of the detailed transaction of inventory items such as the number of units purchased, sold or discarded is now possible to obtain with the help of the point of sales system, which was earlier impossible due to the manual record keeping. The new point of sales system has considerably helped the organization in understanding and identifying the higher profitable products. The perspective of real cost have considerably helped the organization in shifting the production to the higher profit items thereby increasing the profit percentage. The real time reporting has furthermore helped the managers in becoming more effective with their business operation. The new system has furthermore helped in controlling the employee schedule and allocating labour expenses to the specific departments and functions, as it has been easier to track the requirements with the help of the new point of sales system. This function helps the owners in delegating more responsibility to the staffs for establishment of the accountability within Four Seasons. However, with the numerous advantages, there are certain disadvantages as well. The disadvantages of the new point of sales system are as follows- Implementation of the point of sales system is a somewhat costly for small and medium sized enterprises. This is because in order to implement the system within the organization, various hardware and software configuration changes are needed in the organization. This indicates investment of a huge amount of money for the system. It is very essential to impart training to the staffs of the organization in order to make them understand the operation of the new point of sales system. Incorrect operation of the system might lead in generation of the erroneous data or incorrect results. The system needs a regular maintenance. The organization will have to invest a certain some of money for the maintenance of the system. However, if the system is successfully implemented within the organization, it will help the organization in gaining competitive advantage in the marketplace, thereby increasing the profit percentage as well. The disadvantages of the system are negligible in comparison to the advantages it offers to the organization. The Competitive advantage of the Business The implementation of the new point of system is expected to offer various competitive advantages to the business organization in the market place. The competitive advantage that the business gain by implementation of the new point of sales system are as follows- The point of sales system integrates all the business operation in a single place. This helps in clear view of the business operations thereby helping in proper management of the business. This in turn helps in gaining a competitive advantage in the market place. The elimination of the manual record keeping of the financial transactions helps achieving a correct data set that in turn helps in improving the business operations of the organization. This certainly provides a competitive advantage to the organization in the market place. Since the new point of sales system helps in tracking the most profitable product and proper management of the inventory, it helps in producing the more profitable product thus giving the organization a competitive advantage in the marketplace (Romney and Steinbart 2012). The major competitive advantage of the company in implementing the new point of sales system is that apart from helping the organization in proper management of the inventory goods, it also helps in proper management of the labours and the employees of the organization (Peppard and Ward 2016). Therefore, it can certainly be said that the new point of sales system will help the Four Season in gaining Competitive advantage in the market. Advantages of having a centralized database The advantages of having a centralized database are as follows- A centralize database considerably improves the data preservation as all the important information regarding the sales and other financial data are stored in a single place (Coronel and Morris 2016). A centralized database improves the data security as storage of data in a central storage limits the security risks the data can face. Centralized database further helps in reducing the cost of the cost of storage, increases the speed of data process. Furthermore, it offers a proper disaster recovery technique and decreases the risk of data manipulation (Stair and Reynolds 2013). It is a cost saving solution and increases the operational efficiency of the organization. The POS in facilitating decision-making The new point of sales system integrates the different operations of the organization thus facilitating the decision making process. The point of sales systems processes the business activities more effectively by providing an accurate data of inventory and sales. For example, in Four Seasons, the products were ordered merely on basis of speculations and there were no proper inventory data. However, with the implementation of the POS system, the units of the products are no longer ordered based on speculations, thus helping the business in operating on a leaner inventory units (Hall 2012). The manual information tracking is difficult to conduct in an effective manner, as it is not only time consuming but also prone to human errors. Therefore, it becomes very difficult to track the information in an effective manner (Galliers and Leidner 2014). Thus, the implementation of the new POS enhances the decision making process. With the implementation of the new POS system, it has been easier to track the inventory and the sales. It is easier to answer the questions related to the amount of purchased orders, orders sold, and orders discarded. Furthermore it increase the control over the employees of the organization as well, thereby facilitating the decision making process (Pearlson et al. 2016). The accurate information provided by the new POS system will help in effective management of all the processes running within an organization. Proper knowledge about the detailed product costs helps in managing and producing products that are more profitable. Furthermore, the detailed management information offers control over schedules and labour expenses as well thereby enhancing the process of decision-making. Telecommunication options There are different types of network options for the implementation of POS in Four Seasons, such as LAN, WAN and MAN. LAN or local area network shares a common wireless communication link to the server within a distinct geographical location. WAN or Wide Area Network on the other hand interconnects a multiple LAN connection in a distributed geographical location. Metropolitan Area Network or MAN interconnects the users with the computer resources in a specific geographical area or region. It is beneficial for the organization to implement the new POS system in WAN (Zhang et al. 2012). This will help the employees of the organization in easier access and management of the data. Furthermore, WAN centralizes the IT infrastructure thereby helping in centralized data management (Barakah and Ammad-uddin 2012). A wired network connection although increases the security of the network, it is a very costly process. Furthermore, it becomes very difficult to manage a wired connection in a wide area network. Therefore, it is recommended for the Four Seasons to establish a wireless network connection for the new POS system. Business Risks The new POS system although offers various advantages to the organization, it is exposed to a number of risks as well (Zissis and Lekkas 2012). The implementation of the system in a wireless network increases the security risk. This is because a wireless network is very vulnerable to attacks and can lead to data loss or data theft. This security risk can be avoided by installing a proper intrusion detection system in the network. The storage of companys data in a centralized database might invite a privacy risk as the database can be compromised due to various virus and malware attacks. This can be prevented by proper data encryption and protection of the system by an up to date antivirus (Al Ameen, Liu and Kwak 2012). Tracking the sales and financial data with the help of the new POS might invite breach of the confidentiality of the customers data due to data compromise by the hackers of loss of data due to malware or security attack. This can be prevented by storing of data in encrypted form and enforcing authorization levels for data access. Conclusion Therefore, it can be deduced that, implementation of the new POS system will considerably help the Four Seasons in obtaining competitive advantages in the marketplace. The report discusses the advantages and disadvantages of the POS system proposed along with the business risk and organization might face while implementing the system. The report further suggests the different risk mitigation process for the identified business risks. Recommendations A proper plan is to be made for implementation of POS and should be implemented according to the needs In order to increase the security and privacy of the data, proper intrusion detection system is to be installed. It is recommended for the organization to allocate proper time and money for the system maintenance. References Al Ameen, M., Liu, J. and Kwak, K., 2012. Security and privacy issues in wireless sensor networks for healthcare applications.Journal of medical systems,36(1), pp.93-101. Barakah, D.M. and Ammad-uddin, M., 2012, February. A survey of challenges and applications of wireless body area network (WBAN) and role of a virtual doctor server in existing architecture. InIntelligent Systems, Modelling and Simulation (ISMS), 2012 Third International Conference on(pp. 214-219). IEEE. Coronel, C. and Morris, S., 2016.Database systems: design, implementation, management. Cengage Learning. Diallo, O., Rodrigues, J.J. and Sene, M., 2012. Real-time data management on wireless sensor marketing: A survey.Journal of Network and Computer Applications,35(3), pp.1013-1021. Galliers, R.D. and Leidner, D.E. eds., 2014.Strategic information management: challenges and strategies in managing information systems. Routledge. Hall, J.A., 2012.Accounting information systems. Cengage Learning. Laudon, K.C. and Laudon, J.P., 2016.Management information system. Pearson Education India. Pearlson, K.E., Saunders, C.S. and Galletta, D.F., 2016.Managing and Using Information Systems, Binder Ready Version: A Strategic Approach. John Wiley Sons. Peppard, J. and Ward, J., 2016.The strategic management of information systems: Building a digital strategy. John Wiley Sons. Romney, M.B. and Steinbart, P.J., 2012. Accounting information systems. Boston: Pearson. Stadtler, H., 2015. Supply chain management: An overview. In Supply chain management and advanced planning (pp. 3-28). Springer Berlin Heidelberg. Stair, R. and Reynolds, G., 2013.Principles of information systems. Cengage Learning. Zhang, Y., Ansari, N., Wu, M. and Yu, H., 2012. On wide area network optimization.IEEE Communications surveys tutorials,14(4), pp.1090-1113. Zissis, D. and Lekkas, D., 2012. Addressing cloud computing security issues.Future Generation computer systems,28(3), pp.583-592.