Thursday, November 28, 2019

Best Books for Kids and Adults Interested in Greek Mythology

Best Books for Kids and Adults Interested in Greek Mythology Which are the best sources for readers interested in the Greek myths and the history behind them? Here are suggestions for people of varying ages and levels of knowledge. Greek Myths for Young People For young people, a wonderful resource is the lovely, illustrated Daulaires Book of Greek Myths. There are also online, out of copyright, and therefore somewhat old-fashioned versions of the Greek myths written for young people, including Nathaniel Hawthornes popular Tanglewood Tales, Padraic Colums story of the Golden Fleece, which is one of the central episodes in Greek mythology, and Charles Kingsleys The Heroes, or Greek Fairy Tales for My Children. Anthologies of Greek myths that are appropriate for children include Tales of the Greek Heroes: Retold From the Ancient Authors, by Roger Lancelyn Green.  Black Ships Before Troy: The Story of the Iliad, by Rosemary Sutcliff, is a good introduction to Homer and the tale of Troy that is so central to any study of ancient Greece. Reading for Adults With Limited Knowledge of Greek Myths For somewhat older people who are curious about the stories and real-life history related to Greek myths, a good choice is Thomas Bulfinchs The Age of Fable or Stories of Gods and Heroes coupled with Ovids Metamorphoses. Bulfinch is widely available, including online, and the stories entertain as well as explain, with the caveat that he prefers Roman names like Jupiter and Proserpine to Zeus and Persephone; his approach is all explained in the introduction. Ovids work is a classic that ties together so many stories as to be somewhat overwhelming, which is why it is best read in combination with Bulfinch, who, incidentally, developed many of his stories by translating Ovid. To be truly familiar with Greek mythology, you really should know a good portion of the allusions Ovid makes. For Adults With More Advanced Knowledge For those already familiar with Bulfinch, the next book to pick up is Timothy Gantz Early Greek Myths, although this is a 2-volume reference work, rather than a book to read. If you havent already read The Iliad, The Odyssey, and Hesiods Theogony, those are essentials for Greek mythology. The works of the Greek tragedians, Aeschylus, Sophocles, and Euripides, are also basics; Euripides may be the easiest to digest for modern American readers.

Monday, November 25, 2019

michaelagelo essays

michaelagelo essays Michelangelo Di Lodovico Buonarroti Simoni is known as the greatest sculptor of the sixteenth century. He was known in the same magnitude as Donatello in the fifteenth century and Bernini in the seventh century. Michelangelo was not only a renowned Italian Renaissance sculpture and painter, but also an architect and poet. He exerted an paralleled influence on the development of Western art(Encyclopedia Britannica, 1994). The Artist that is known around the world simply as, Michelangelo resisted a paintbrush. He often claimed that his only tool would be the chisel. Born at Caprise, in Tuscany on March 6, 1475, he was the second of five boys. Even though he was born in Tuscany, he considered himself from Florence. This loyalty to Florence would later help shape his life. He was sensitive about being considered an artist, and treated as if he ran a shop. Michelangelo would later profess that his family paid taxes and held government posts in Florence for three hundred years. This would place him among the citys upper echelon. With this would come wealth, land, and social status, and this disconnected Michelangelo from the fellow artists. Michelangelos mother became very sick and could not take care of the future painter of the Sistine Chapel, so he was placed with a nurse, in a family of stone cutters. This is where Michelangelo was first exposed to stone working. This would help explain how he developed his own personal style at the tender age of sixteen. Michelangelo first showed this personal style in two relief sculptures, The Battle of the Centaurs, and The Madonna of the Stairs (Both 1489-92, Casa Buonarroti, Florence). Along with these two sculptures, Michelangelos early style is shown in the marble David. Michelangelo worked on this gigantic (4.34 m/ 14.24 ft) stature between 1501 and 1504. He chose to represent David as an athlet ...

Thursday, November 21, 2019

What role does diversity play in nonprofit management Research Paper

What role does diversity play in nonprofit management - Research Paper Example A simple meaning of this term as defined by Jeffries & Amsden (2012) is that a group of people belonging from different ethnic, cultural, religious and social backgrounds to come a common platform and work collectively for achieving a common objective. Several researches have highlighted that the growing impact of globalization in all government, private and non-profit sectors have necessitated the need of incorporating the practice of diversity in the organization and work setup (Jeffries & Amsden, 2012). It is because an organization will be able to develop and maintain better external communication with diverse people and enterprises if it is diverse from the inside also. This is how a healthy and pluralistic working environment is established, both internal and external to the organization. Nielsen & Huang (2009) underline the fact that diversity is not a method for accomplishment but an accomplishment in itself; where people of high aptitude think and construct together without any racial barriers or differences. The concept of diversity is more advocated by the non-profit organizations than other private and governmental bodies due to their nature of work, which is intended to help and flourish every individual without considering their racial attributes (Nielsen & Huang, 2009). Williams (2012) explains that objectives of non-profit organizations can be limited in its accomplishment if the top level managers and executives are all white colours. It is essential of CEOs and owners of such enterprises to understand the power and need of implementing diversity, from the very roots to the top of the organization in order to justify their intent and mission (Williams, 2012). The absence of diversity in an organization can limit it to achieve optimum performance from its employees and inculcate new dimension for crisis management (Philanthropy, 2007). This paper is aim to discus the role of diversity in non-profits management, and how it can be taken as a tool for ensuring prosperity of the organization. The paper will present a theoretical aspect of diversity and its implementation models to illustrate the proper methodology of adopting it within the non-profit organizations. Impact of Diversity: A Theoretical View There have a number of theories dealing with the concept of theory in different dimensions. The Agency theory given by Miller (2002) defines that there always a difference between how organization objectives are perceived by managers and employees. This difference can lead to misunderstanding between the two bodies; the leader or manager and the follower or employees. Miller (2002) further explains that if all top level managers and decision makers are white, then the difference in perception can be further augmented. Hence, in non-profit organizations focus will put on only those needy people who are of the same racial background as those on the power seats (Miller, 2002). The System Theory of Luhman links the concept of dive rsity with the communication within the organization. He explains that the effectiveness of any organization is greatly influence by the communication setup of the organization. If the internal communication is weak, then there are greater chances of employees and staff of developing a negative image of the organization (Luhmann & Gilgen, 2013). In a world where everyone is highly exposed to media, people have adopted the habit of comparing their organization with what is being shown on media and there is a higher probability of developing a negative image of their organization. When people see favouritism and racial bifurcation on the media, they

Wednesday, November 20, 2019

Sports Psychology Research Paper Example | Topics and Well Written Essays - 1000 words

Sports Psychology - Research Paper Example ychology to these basics will dramatically improve the three key ingredients to a successful athletic program : fun, participation and development .† (Sports Psychology Basics PP2) He calls sports psychology â€Å"the glue that holds the three ingredients (mentioned above) together.† The first step in the psychological preparation for a sports person is to decide his commitment to the particular category of sports. Some people will engage in sports just for fun. Hence beyond the fun element the degree of commitment has to be decided first. One’s own skill in that particular sport or in the position in which one wants to play in a team is to be assessed next. Only after doing these can one set a goal to achieve. This goal is to be set up in the general backdrop of the goal of one’s life thus to prioritize the goals. Though goal setting is the most important first step many sports persons are found to be lousy in their attitudes towards goal setting. Mark Anderson in his book â€Å"Doing Sport Psychology† brings out this attitude thus: â€Å"I anticipate getting virtually all players to complete this first stage of goal setting quickly and efficiently. But players offer various explanations for not completing the goal sheets. The poor response rate is frustrating†¦..I view non compliance as a form of resistance.† (PP 94) The goal should be set in a measurable manner with dates, times and amounts all fixed precisely. Only a measurement of the achievement can give psychological satisfaction. The performance should be the criteria of the measurement and not the outcome of the performance, that’s winning or failing, which could be due to lots of external factors like bad judgment or bad weather conditions. One must be able to ignore all the rewards and fame that would come along with winning and concentrate on one’s performance and its measurements. For this one has to set specific goals and not unrealistically high or conveniently low ones. Correct goal

Monday, November 18, 2019

Impact of Industrialization on the National Business Systems and the Essay

Impact of Industrialization on the National Business Systems and the National Competitiveness - Essay Example To understand the questions completely, each of the fundamental terminologies which are to have an impact on the final question needs to be addressed and needs to be linked to the main question in pursuit. INDUSTRIALIZATION: The early phase of industrialization was from 1750 to the 1800s.Although, it can be debated over the exact timings of the industrialization in the different parts of the world, but it was the above mentioned period during which industrialization emerged in its totality. Europe in general and Britain in particular was the main element in crafting the early period of industrialization (Henderson, 1954). Until then, work was majorly done using manual labor and the amount of production, as a result, was squat. But it was end of the 18th century which actually saw the revolution in production processes and changed the dynamics of production and industry concepts. Enhanced use of machine-driven principles, including steam power, to develop in Great Britain produced an identifiable change in economic structure and growth (Spielvogel, 2011). The period saw the emergence of factory system where workers were grouped together and capital structures changed from the earlier used methods to cost effective technology driven methods. Cotton and iron were the key dynamics in this course (Thomas, 1964). Cotton was earlier processed through manual labor which tool time and effort but did not produce in mass volume. The production capacity was low and thus, the efficiency was significantly less. But now machines were developed which were, at first, powered by water and later on, with thw advancement in the system, by steam, and which now increased the production immensely. The number of people employed naturally increased. Moreover, the new process caused the cost of the final products to sharply decrease making them competitive. It was vital for Britain to acquire the new technology. It helped Britain to cement its dominance on the worlds economical and the resulting political sphere (Henderson, 1954). It took little time for industrialization to travel from Britain to the rest of the western world. It can be said that industrialization did not take more than fifty years to travel from Britain to the rest of the western world including America. But it has taken time to encompass the eastern boundaries. This statement is essential to understand because it has been one of the fundamental differences between the eastern and the western world.The eastern world could not be the recipient of the process of industrialization because its majority was under the colony system of one or more of the European countries. United States of America became a grateful receiver of the new dynamics in the production processes. The concept of corporations emerged whereby the people were given the new concept of working in huge setups and in a pronounced number of people.Because of the complexity of the new organization setup, several theories and ways of ef ficiently working in corporations were also developed. The early phase saw the owners of the corporations to receive the greatest benefit out of the sales and the workers in these firms to suffer the low wage rates and pitiable working conditions (Wilensky, 1965). It was natural for this phenomenon to take toll. This is because it was the part of the evolution through which the countries had to go in order to accept the new paradigm of industrializat

Saturday, November 16, 2019

Rare Earth Doped Upconverting Nanoparticles

Rare Earth Doped Upconverting Nanoparticles Rare Earth Doped Upconverting Nanoparticles: Synthesis and Application in Bio-Imaging Nidhi Malviya1, Vinita Rajput Chouhan1, Sudeshna Ray2 ABSTRACT Upconversion luminescence, a nonlinear process, which re-emits a photon at a shorter wavelength by the absorption of more than one photon, successively at longer wavelengths via long-lived intermediate energy states, is useful for important applications in various fields like fluorescence bio-imaging and lasers. This NIR-to-NIR up-conversion process provides deeper light penetration into biologicalspecimen and results in high contrast optical imaging due to absence of an auto fluorescence background and decreased light scattering. Excitation at long wavelengths also minimizes damage to biological materials. Herein, we report the different mechanisms responsible for the Upconversion process of rare-earth (Er3+, Ho3+, Tm3+) doped nanoparticle and methods that are used to synthesize and decorate up converting nanoparticle. I INTRODUCTION Upconversion is an optical process that involves the conversion of lower-energy photons into higher-energy photons. It has been extensively studied since mid-1960s and widely applied in optical devices. Over the past decade, high-quality rare earth-doped Upconversion Nanoparticles have been successfully synthesized with the rapid development of nanotechnology and are becoming more prominent in biological sciences. The main difference between Upconversion Nanoparticles and other nonmaterial’s is that they can emit visible light under near infrared irradiation. Upconversion nanoparticle (UCNPs), particularly lanthanide-doped nanocrystals, which emit high energy photons under excitation by the near-infrared (NIR) light, have found potential applications in many fields, including biomedicine and is found improved tissue penetration and higher photochemical stability as compared with traditional down-conversion fluorescence imaging. The unique Upconversion process of UCNPs may be u tilized to activate photosensitive therapeutic agents for applications in cancer treatment. Upconversion luminescence imaging in vivo is expected to be the next generation photoluminescence imaging technique since it provides high sensitivity and spatial resolution. Due to their multicolour emission, high brightness and long lifetime, lanthanide ions based luminescent nonmaterial have tremendous promise as indicators and photon sources for numerous application such as boilable, light-emitting devices, sensor technology, and low-threshold lasers. So it is very important to successfully prepare the rare-earth doped inorganic nanocrystals with good dispensability in organic solvents. The Up conversion phenomenon has been transition metals, actinides, but mainly in the rare earth elements, which contain the lanthanide (Ln) series, Yttrium, and scandium. Ln3+ ions heave special 4fn 5d0-1inner shell configurations that are well – shielded by outer shell and have unique energy level structures. These Ln3+ ions can exhibit sharp luminescence emission via intra-4f or 4f-5d transitions. Their luminescence properties, as narrow bandwidth, long-time emission, and anti-stokes emission, have been widely applied in lasers, solar cell, analytical sensors, optical imaging, and photodynamic therapy. Most fluorescent materials, including dye molecules, quantum dots, and dye-doped silica/gold nanomaterials, emit light by the down conversion process (emitting lower-energy photons under higher-energy irradiation). Although the uses of a conventional organic dye molecule or quantum dot (QD) based biomarker have achieved significant progress in real-time detection and bio imaging, they still have drawbacks. These fluorescent materials are generally excited by ultraviolet (UV) or visible light, which may induce auto fluorescence and photo damage to biological samples, resulting in low signal-to-noise ratio and limited sensitivity. These limitations prompted the development of a new type of high-quality and well-shaped nonmaterial’s known as up conversion nonmaterial’s (UCNs [1-7]. Lanthanide-doped Upconversion (UC) nanophosphors are promising optical contrast agents for biomedical applications due to their photo stability, sharp emission peaks, and long emission lifetime [8, 9]. Upon near infrared (NIR) excitation, UC nanoparticle exhibit intense visible emission via multiphoton processes involving the lanthanide ions within them [10-12]. For in vitro or in vivo imaging, the use of NIR excitation minimizes absorbance, scattering, and fluorescence from cells and tissues, allowing imaging against a dark background [13]. In contrast, commercially available labels, such as organic dyes and quantum dots, typically must be imaged against a background of Stokes-shifted tissue autofluorescence induced by UV, blue, or green excitation[14]. In addition, because of the existence of real intermediate energy levels in lanthanide ions, this Upconversion process can be much more efficient than in conventional multiphoton-absorption-induced fluorescence of organic dyes or qua ntum dots, where the intermediate levels are virtual. Bio-imaging is a term that covers the complex chain of acquiring, processing and visualizing structural or functional images of living objects or systems, including extraction and processing of image-related information. II MOTIVATION OF MY WORK Lanthanide-doped upconversion-luminescent nanoparticles (UCNPs), which can be excited by near-infrared (NIR) laser irradiation to emit multiplex light, have been proven to be very useful for in vitro and in vivo molecular imaging studies. In comparison with the conventionally used down-conversion fluorescence imaging strategies, the NIR light excited luminescence of UCNPs displays high photostability, low cytotoxicity, little background auto-fluorescence, which allows for deep tissue penetration, making them attractive as contrast agents for biomedical imaging applications. In this review, we will mainly focus on the latest development of a new type of lanthanide-doped UCNP material and its main applications for in vitro and in vivo molecular imaging and we will also discuss the challenges and future perspectives. New materials with high Biocompatibility and more intense emission spectra are needed to be developed so for deep tissue imaging. III CONCLUSION The past decade a large number of scientists have investigated the potential application of UCNPs in bioimaging. Lim et al. firstly reported the use of UCNPs as in vivo Caenorhabditis elegans imaging agent. Along with the fast developement of UCNPs for biological applications. UCNPs have also been applied contrasts agents in positron emission tomography (PET), magnetic resonance imaging (MRI), X-ray computer tomography (CT) for in vitro and in vivo multimodal imaging. Futhermore, UCNPs could also be combined with anti-cancer drugs, photosensitizers or gold nanostructures for potential therapeutic application. Up to now, a variety of Upconversion nanophosphors have been developed for bioimaging, and most of them are based on rare earth doped NaYF4. Other kinds of RE doped nanoparticles, such as NaGdF4, NaLaF4, Y2O3, GdF3, CeO2, LiNaF4, Ca3(PO4)2, ZrO2 and GdOF etc. have al so been considered as excellent UCNPs in recent years due to their strong Upconversion luminescence intensity an d good photostability. REFERENCES F. Auzel, Chem. Rev. 2004, 104, 139; F. Wang, X Liu, Chem. Soc. Rev. 2009, 38, 976; D. K. Chatterjee, M. K. Gnanasammandhan, Y. Zhang, Small 2010, 6, 278 M. Haase, H. Schafer, Angew. Chem. Int. Ed. 2011, 50, 5808. D. K. Chatterjee, A. J. Rufaihah, Y. Zhang, Biomaterials 2008, 29, 937 J. Zhou, Y. Sun, X. Du, L. Xiong, H. Hu, F. Li, Biomaterials 2010, 31, 3287; L. Xiong, T. Yang, Y. Yang, C. Xu, F. Li, Biomate ­rials 2010, 31, 7078. Wu SW, Han G, Milliron DJ, Aloni 8 S, Altoe V, Talapin DV, et al. Proceedings of the National Academy of Sciences of the United States of America. 2009; 106: 10917-21. doi:DOI 10.1073/pnas.0904792106. Mai H-X, Zhang Y-W, Si R, Yan Z-G, Sun L-d, You L-P, et al. J Am Chem Soc. 2006; 128: 6426. doi:10.1021/ja060212h. Boyer J-C, Cuccia LA, Capobianco JA. Nano Letters. 2007; 7: 847-52. doi:10.1021/nl070235 Heer S, Kà ¶mpe K, Gà ¼del HU, Haase M..Advanced Materials. 2004; 16: 2102-5. doi:10.1002/adma.200400772. Chen GY, Ohulchanskyy TY, Kumar R, Agren H, Prasad PN. ACS Nano. 2010; 4: 3163-8. doi:Doi 10.1021/Nn100457j. Nyk M, Kumar R, Ohulchanskyy TY, Bergey EJ, Prasad PN. Nano Letters. 2008; 8: 3834-8. doi:10.1021/nl802223f. Wang M, Mi CC, Wang WX, Liu CH, Wu YF, Xu ZR, et al.. ACS Nano. 2009; 3: 1580-6. doi:Doi 10.1021/Nn900491j.

Wednesday, November 13, 2019

The Human Voice Essay -- essays research papers

Our voice is our primary mean of communication, and most of us can’t go for more than a couple of minutes without using it. We don’t use your voice for just talking though, our voice can be used to do a variation of things. The most obvious example would be singing. So it is obvious the human voice is a means of communication, but it is also a source of pleasure for us. The human voice is not limited to just a couple sounds, no, the human voice can make a complex range of sounds but none of this could be possible if it weren’t for the complex system you possess in your throat. First I’ll start off by talking about the physical components and how they contribute to the production of your voice. There are only about 6 main parts to your voice. They are as follows, muscle/mucous, air, tongue, teeth, palate, and lips. The tongue, teeth, palate, and lips are more formally known as the articulators, because it is with these parts that we form words and sentences. The muscle and mucous make up your vocal cords (vocal folds). Your vocal cords are tiny paired muscles that ...