Byzantine vs. Roman Empire Essay Example for Free

Byzantine vs. Roman Empire Essay The Byzantine Empire actually ruled under the Roman Empire until Its demise In AD 476. Both of these empires were located near the Mediterranean Sea and both had a written set of laws. Emperor contanune the First converted to chrlstlanlty after ordering his soldiers to put a cross on their shields and then being victorious in battle. After his conversion, he united the military power of Rome with the young Roman Catholic Church. Because of this union he was able to conquer much of the known world at he time. In the Byzantine Empire, Christianity and the differing ideas about it caused great conflict. When the idea of religious icons came about, Emperor Leo Ill created Iconoclasm, which permitted the smashing of these religious icons. The events following the creation of Iconoclasm showed how distant the church was from the government. Eventually the quarrel led to the separation of the Catholic Church from the Eastern Christian Church, known as the Great Schism. This resulted in the Orthodox Church. Despite the differences in the effects that Christianity had on each Empire, it is clear that in both societies, religion was always in opposition with the government. There were many factors that led to the decline of both the Roman and the Byzantine Empires. In Rome, the empire simply became too large. They had to resort to using mercenaries to defend their excess land, but they often rebelled against the government. The separation of the empire into east and west also proved to be detrimental to the empire. The western side, the Romans, was defeated by Germanic barbarians who unseated their last emperor, a 14 year old boy, In AD 476. Although the Eastern Roman Empire, Byzantium, survived for another 1,000 years, Its Inevitable demise came about through the arrival of the Bubonic Plague, which was only the first crisis that moved the empire towards collapse. Byzantium was also constantly faced with military challenges from outside Invaders, and the Great Schism eliminated any possibility of outside help. The Byzantines used a multitude of tactics to try to keep enemies away, but the empire eventually fell to the Ottoman Turks In 1453. Both the Roman Empire and the Byzantine Empire held an alarming amount of xternal enemies, which undoubtedly was crucial In the demise of the empires; however It was mainly Internal conflicts that destroyed both empires. Justinian ended up winning back a large part of the territory Ancient Rome had ruled at i ts height, including Italy and parts ot Spain and Nort Roman and the Byzantine Empires differed in a multitude of ways despite their direct link to each other, they were also similar in their location, their religious opposition to the government, and their severe internal problems. Byzantine vs. Roman Empire. (2018, Oct 18).

The Simultaneous Repression of CCR and CAD, TWO Enzymes of the Lignin Essay

The Simultaneous Repression of CCR and CAD, TWO Enzymes of the Lignin Biosynthetic Pathway, Results in Sterility and Dwarfism i - Essay Example Later on, understanding pathways may be used in the laboratory synthesis of these compounds. Moreover, the induction, as well as repression, of their production in plants through anthropogenic intervention to promote optimal plant growth and/or fruit bearing may be conducted. This is important as many secondary metabolites are already used by humans. In the case of lignins, genes CCR and CAD have been identified as the encoders for the last and specific steps for monolignol biosynthesis, the first part of lignin pathway. Because of the complex nature of biochemical production, regulation of a certain pathway may affect other pathways as well. Such effects may be great enough to cause changes in phenotype. In the case of monolignol biosynthesis in tobacco, the silencing of both CCR and CAD genes resulted not only to a reduction of lignin production but to a decrease in plant size as well. The recent study by Thevenin et al. (2011) looked into the effects of silencing monolignol-specif ic CAD and CCR genes in Arabidopsis thaliana. The plant contains two CCR genes, but only one, CCR 1, is specific for lignification. The mutant lines for this gene, irx4, ccr1s and ccr1g, are dwarves, have a reduced amount of lignin (25-35%), and have a modified set of phenolic metabolites. On the other hand, A. thaliana contains nine CAD genes, two of which, CAD C and CAD D, are involved in lignin biosynthesis. CAD C and CAD D double mutants, unlike CCR 1 mutants, has a normal size and 40% amount of lignin. The effects on leaf and flower morphology, lignin structure and content, amount of sugar, and other metabolites were observed. RESULTS Identification and Phenotyping of the ccc Triple Mutant After crossing ccr 1 g mutant with cad c and cad d double mutant, and producing ccc mutant, the absence of CCR 1, CAD C, and CAD D expression in ccc mutants was verified using RT-PCR. 1. Leaf Morphology The growth of wild type, ccc, cad c, cad d, and ccr 1 g from plantlets to senescence were observed at greenhouse conditions. At 30 days, the absence of CCR 1 caused the leaves to change its morphology from rosette to pointed and rolled. The decrease in leaf size was also noted most noticeably among ccc plantlets (5-fold shorter), and less prominently in ccr 1 g (3-fold shorter. On the other hand, the absence of both cad c and cad d expression did not cause any decrease in leaf size. 2. Flower Morphology More changes were observed in the flowers. Similar to leaves, the mature floral stem is smaller in ccc than in ccr 1 g mutants. However, when compared to the wild type, the triple mutant senesced later, despite its first inflorescence being prematurely shriveled. In addition, male flowers are sterile. Despite possessing normal pollens, the anthers were unable to release them. As a result, more than 50% of ccc mutants were not able to undergo seed germination. The ccc triple mutant possesses non-dehiscent anthers Initial flower development and stamen filament elongation we re similar in ccc and wild-type A. thaliana. However, ccc anthers, despite containing pollens whose sizes germinating capability (through Alexander and aniline blue staining) were similar to that of wild-type, did not dehisce as what normally happens. Probably, the absence of lignified secondary thickening observed among ccc plants may have caused the non-dehiscent of anthers. The ccr 1 g plants, on the other hand, have few

Technology Leads to Positive Social Changes Essay

Technology Leads to Positive Social Changes - Essay Example It has been apparently observed that previously people had to make more efforts in order to perform a simple work. However, the notion of technology made the humans’ job easier as well as simple and reduced their work-related difficulties at large. It is in this context, social changes can be defined as the shifts in human attitudes as well as behaviors that differentiate society in an effectual manner. Advancement in technologies significantly made positive changes in the social aspects. In this regard, technology provides certain advanced means that helps to improve the human attitudes as well as behaviors within the social context in a positive manner (Kubesh, Katie, Mcneil, Niki, and Bellotto, Kimm 10). Thesis statement This discussion intends to critique the proclamation that the aspect of technology certainly gets better over time and always lead towards positive social changes. Evolution of Technology over Time and Its Relation to Positive Social Changes Technology is r egarded as the process that makes a significant effort in meeting the human requirements such as shelter, food, health as well as communication. Advanced technologies have been getting better over a period of time that intends to provide significant facilities with the intention of improving the society. It can be affirmed that the idea of technology has developed the living standard of the societal members to a greater extent throughout the last decade and is still continuing to perform such function. It has been apparently observed that technology has provided advanced amenities to different people belonging to any communities by the systematic employment of science. Previously, social interaction among the people living in different regions was viewed to be quiet due to lack of communication as well as interaction. However, in recent days, with the introduction of innovative technologies such as mobile phones and internet, people can interact with each other quickly without facin g any difficulties. In the past, the distance was considered to be one of the critical factors that restricted social interaction among people.