Saturday, February 15, 2020

Life and work of Pyotr Ilyich Tchaikovsky Essay

Life and work of Pyotr Ilyich Tchaikovsky - Essay Example It was amazing that Tchaikovsky was not even a professional musician. The Great Russian composer had education in a particular career as a civil servant. Pyotr was born from a family that had a long military experience. His father who was mostly of Russian ethnicity worked as an engineer in the Department of Mine. All the parents were trained in arts including music, which was very important especially considering that they lived in a very remote region. At the age of six, Tchaikovsky was already fluent in French and Germany through the help of the teacher who was hired to teach Tchaikovsky elder brother Nikolai and a niece of the family (Burt 2001, p. 410 -411). At age of four, Pyotr took piano lessons where he proved to be an intelligent pupil who could clearly read music proficiently within three years. His parents were very helpful and engaged a tutor and buying him musical instruments such orchestrion. However, the parents changed their mind in around 1850 and sent him to Imperi al School of Jurisprudence in Saint Petersburg maybe because they grew insensitive towards musical gift for their son and perhaps lack of better musical career in Russia at that time. Pyotr’s father also became broke and may have wanted Pyotr to remain independent as soon as possible. Music career was considered to be a very low career in Russia (Kavanaugh 1996, p.50-51). The fact that both Tchaikovsky’s parents schooled in Saint Petersburg, they felt it important to take their son to The School of Jurisprudence which they felt would prepare their son for a career as a civil servant at the age of 10 and this made him board for two years. It forced him to stay almost 1,300 km away from his family and later begun a seven year course of studies after his two years in preparatory school. Separation of Tchaikovsky from his mother made him have an emotional suffering that affected him for the rest of his life and was further increased by his mother’s death in 1854. Tc hikovsky mourned his mother for the rest of his life as he termed it the â€Å"crucial event† and claimed that it was vivid to him. His mother’s loss also made him to make his initial stern composition called a waltz in her memory. The father thought it wise to take his son back to school so that his mind can be occupied with academic work which later made Tchaikovsky made lifelong friendship with fellow students Aleksey Apukhtin and Vladimir Gerard. Music greatly unified them and they maintained an extracurricular activity where they habitually attended the opera. Tchaikovsky further went ahead with his piano lessons by the help of an instrument maker Franz Becker who made several trips to the school. In 1855, Tchaikovsky father employed Mr. Rudolph Kundinger as a private teacher who suggested to his father that Pyotr did not have any future as a musician but later confirmed that his decision was based on his negative experience as a musician. Tchaikovsky’s fat her remained receptive about music career and did not know what to do about it making him to advice his son to finish school and try for a post in the Ministry of Justice.

Sunday, February 2, 2020

Cell Theory Assignment Example | Topics and Well Written Essays - 2250 words

Cell Theory - Assignment Example The paper describes all the peculiarities of the cell theory. A cell organelle is the part of a cell that has a specific function. Organelles are usually located inside the cytoplasm of a living cell, and are typically enclosed in a membrane called plasma membrane. They are called "organelles" because their importance to a cell is analogous to the importance of organs of to a body. Both prokaryotes and eukaryotes have cell organelles; however, there are some important differences between the two. The organelles in prokaryotic cells are not organized or enclosed in plasma membranes. Major cell organelles include chloroplasts, endoplasmic reticulum, golgi apparatus, mitochondria, nucleus and vacuoles. Chloroplasts have double membranes as well as their own DNA, and perform photosynthesis. They are present in plants and some algae. Endoplasmic reticulum (ER) has a single membrane and is responsible for transport as well as synthesis of proteins. It is of two types – rough ER, who se surface appears to be rough because of the presence of ribosomes, and smooth ER, whose surface appears to be smooth. Golgi apparatus is also singe-membraned and is responsible for protein sorting and modification.... Both prokaryotes and eukaryotes have cell organelles; however, there are some important differences between the two. The organelles in prokaryotic cells are not organized or enclosed in plasma membranes. Major cell organelles include chloroplasts, endoplasmic reticulum, golgi apparatus, mitochondria, nucleus and vacuoles. Chloroplasts have double membranes as well as their own DNA, and perform photosynthesis. They are present in plants and some algae. Endoplasmic reticulum (ER) has a single membrane and is responsible for transport as well as synthesis of proteins. It is of two types – rough ER, whose surface appears to be rough because of the presence of ribosomes, and smooth ER, whose surface appears to be smooth. Golgi apparatus is also singe-membraned and is responsible for protein sorting and modification. The mitochondrion is also called as the powerhouse of the cell because it is responsible for energy production, and like chloroplasts, it also has a double membrane and its own DNA. The nucleus has both Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA) and is responsible for maintenance and proper distribution of DNA during cell division. Vacuoles function as storage reservoirs of the cell. Minor organelles of the cell include autophagosomes that collect material from the cytoplasm for degradation, centrioles that enable cell division, ribosomes that help in the production of proteins, lysosomes that are responsible for processing or breakdown of large molecules into simpler ones, nucleolus that produces ribosomes, and vesicles that function as material transporters in the cell. Many other organelles exist based on the type of organism.