Thursday, November 28, 2019

Bernard Arnault Essay Example

Bernard Arnault Essay Example Bernard Arnault Paper Bernard Arnault Paper Bernard Arnault (born 5 March 1949) is a French businessman. He is the founder, chairman, and CEO of LVMH, a large luxury goods conglomerate consisting of over fifty luxury brands, including Louis Vuitton, Dior, and Fendi. According to Forbes Magazine, Arnault is the worlds 4th and Europes richest person, with a 2011 net worth of US$41 billion. Marc Jacobs (born April 9, 1963) is an American fashion designer and the head designer for Marc Jacobs, as well as the diffusion line Marc by Marc Jacobs. Jacobs is currently the Creative Director of the French design house Louis Vuitton. In 1997, Jacobs was appointed Creative Director of luxury French fashion house, Louis Vuitton, where he created the companys first ready-to-wear line. Jacobs has collaborated with many popular artists for his Louis Vuitton collections. Vuitton has worked in conjunction with Stephen Sprouse, Takashi Murakami and most recently American artist Richard Prince and rapper Kanye West. As of 2011, Jacobs remains the Creative Director for Louis Vuitton. Marc Jacobs has the midas touch and an innate ability to design clothes that people want to wear. Whether he designs a satchel or a shoe its always something everyone wants. From grunge to prom, from private jet to Tokyo nightclub, he has an outfit that suits. His workload includes Marc Jacobs, Marc by Marc and Louis Vuitton a titanic selection of back to back collections but he still has time to build a world class contemporary art collection and dress in pigeon costumes at his annual fancy dress party. He has caught the fitness bug like so many male fashion designers. His muses include Sofia Coppola, Charlotte Rampling, Winona Ryder, Dakota Fanning, Victoria Beckham all have been photographed by Juergen Teller for Marc Jacobs ad campaigns (Mrs Beckham was hidden inside a Marc Jacobs shop bag after Juergen persuaded her that she was just a product). John Stuart, former CEO of Quaker, once said, if this company were split up, I would give you the property, plant and equipment and I would take the brands and trademarks and I would fare better. This commonly held belief illustrates the immense value of the brand today, but how do you create and manage a star brand? Perhaps this question is relatively easy for marketing and brand managers, but what about at board level, where the buck really stops? Bernard Arnault, Chairman of LVMH (Louis Vuitton, Moi t Hennessy , the worlds largest maker of luxury goods), appears to have some of the answers. LVMH is a paradox in itself. A company that makes and sells products that nobody actually needs. A recipe for disaster? A managers nightmare? Far from it LVMHs combined revenue was estimated at $11 billion in 2001, with a market capitalization of $27 billion. With Arnault at the helm, this organization has gone from a small clothing manufacturer on the verge of ruin to a conglomerate of nearly 50 star brands including Dom Perignon, TAG Heuer and Christian Dior. According to Arnault, one key to success is his management technique. The process of creating a star brand begins with radical innovation and, for that, artists must be totally free from financial or marketing concerns. He firmly believes that If you think and act like a typical manager around creative people with rules, policies, data on customer preferences, and so forth you will quickly kill their talent. It is only later, when the product is being manufactured, that he introduces the strict, almost militant processes that ensure profitability. Take, for example, John Galliano and his dresses made out of newspaper surely the most impractical product imaginable. But when they were sent down the cat-walk, Arnault did not bat an eyelid. Consequently, when Dior sold dresses in newspaper-printed fabric for a considerable profit, Arnault was proved right. Star brands, in his opinion, are in themselves a paradox. They must simultaneously be timeless, modern, fast-growing and highly profitable. Arnault is keenly aware of the crucial role he plays in creating such an entity. He observes how many brands have the potential to be stars but they are poorly managed, and by this we are not talking of the marketing manager alone the problem often runs through the heart of most major organizations. If you continually pose these questions to consumers and analyze the findings, it becomes increasingly simple to pick up on small irritations or concerns that, in the future, could present massive problems for your brand. (2) See the brand as both an object and a person. Viewing the brand as an object increases the value of analysis and plays a fundamental and consistent role you are selling something to people. On the other hand, the brand as a person enables you to understand the delivery of this role and how well it fits into your corporate culture. This way you can become involved with the projection and promotion of the brand without ever losing sight of the bigger picture. (3) Look at brand promise to enable successful advertising.

Sunday, November 24, 2019

Radiation in Space and Astronomy - Definition

Radiation in Space and Astronomy - Definition Astronomy is the study of objects in the universe that radiate (or reflect) energy from across the electromagnetic spectrum. Astronomers study radiation from all objects in the universe. Lets take an in-depth look at the forms of radiation out there. Artwork of a planet orbiting a pulsar. Pulsars are very rapidly spinning neutron stars are the dead cores of massive stars and rotating on their axes often hundreds of times every second. They radiate radio waves and in optical light. Mark Garlick/Science Photo Library (Getty Images) Importance to Astronomy In order to completely understand the universe, scientists must look at it across the entire electromagnetic spectrum. This includes the high-energy particles such as cosmic rays. Some objects and processes are actually completely invisible in certain wavelengths (even optical), which is why astronomers look at them in many wavelengths. Something invisible at one wavelength or frequency may be very bright in another, and that tells scientists something very important about it. Types of Radiation Radiation describes elementary particles, nuclei, and electromagnetic waves as they propagate through space. Scientists typically reference radiation in two ways:  ionizing and non-ionizing. Ionizing Radiation Ionization is the process by which electrons are removed from an atom. This happens all the time in nature, and it merely requires the atom to collide with a photon or a particle with enough energy to excite the election(s). When this happens, the atom can no longer maintain its bond to the particle. Certain forms of radiation carry enough energy to ionize various atoms or molecules. They can cause significant harm to biological entities by causing cancer or other significant health problems. The extent of the radiation damage is a matter of how much radiation was absorbed by the organism. The electromagnetic spectrum show as a function of frequence/wavelength and temperature. Chandra X-Ray Observatory The minimum threshold energy needed for radiation to be considered ionizing is about 10 electron volts (10 eV). There are several forms of radiation that naturally exist above this threshold: Gamma-rays: Gamma rays (usually designated by the Greek letter ÃŽ ³) are a form of electromagnetic radiation. They represent the highest energy forms of light in the universe. Gamma rays occur from a variety of processes, ranging from activity inside nuclear reactors to stellar explosions called  supernovae and highly energetic events known as gamma-ray bursters. Since gamma rays are electromagnetic radiation, they do not readily interact with atoms unless a head-on collision occurs. In this case the gamma ray will decay into an electron-positron pair. However, should a gamma ray be absorbed by a biological entity (e.g. a person), then significant harm can be done as it takes a considerable amount of energy to stop such radiation. In this sense, gamma rays are perhaps the most dangerous form of radiation to humans. Luckily, while they can penetrate several miles into our atmosphere before they interact with an atom, our atmosphere is thick enough that most gamma rays are absorbed b efore they reach the ground. However, astronauts in space lack protection from them, and are limited to the amount of time that they can spend outside a spacecraft or space station. While very high doses of gamma radiation can be fatal, the most likely outcome to repeated exposures to above-average doses of gamma-rays (like those experienced by astronauts, for instance) is an increased risk of cancer. This is something that life sciences experts in the worlds space agencies study closely. X-rays: x-rays are, like gamma rays, a form of electromagnetic waves (light). They are usually broken up into two classes: soft x-rays (those with the longer wavelengths) and hard x-rays (those with the shorter wavelengths). The shorter the wavelength (i.e. the harder the x-ray) the more dangerous it is. This is why lower energy x-rays are used in medical imaging. The x-rays will typically ionize smaller atoms, while larger atoms can absorb the radiation as they have larger gaps in their ionization energies. This is why x-ray machines will image things like bones very well (they are composed of heavier elements) while they are poor imagers of soft tissue (lighter elements). It is estimated that x-ray machines, and other derivative devices, account for between 35-50% of the ionizing radiation experienced by people in the United States.Alpha Particles: An alpha particle (designated by the Greek letter ÃŽ ±) consists of two protons and two neutrons; exactly the same composition as a hel ium nucleus. Focusing on the alpha decay process that creates them, heres what happens: the alpha particle is ejected from the parent nucleus with very high speed (therefore high energy), usually in excess of 5% of the speed of light. Some alpha particles come to Earth in the form of cosmic rays  and  may achieve speeds in excess of 10% of the speed of light. Generally, however, alpha particles interact over very short distances, so here on Earth, alpha particle radiation is not a direct threat to life. It is simply absorbed by our outer atmosphere. However, it is a danger for astronauts.   Beta Particles: The result of beta decay, beta particles (usually described by the Greek letter Î’) are energetic electrons that escape when a neutron decays into a proton, electron, and anti-neutrino. These electrons are more energetic than alpha particles but less so than high energy gamma rays. Normally, beta particles are not of concern to human health as they are easily shielded. Artificially created beta particles (like in accelerators) can penetrate the skin more readily as they have considerably higher energy. Some places use these particle beams to treat various kinds of cancer because of their ability to target very specific regions. However, the tumor needs to be near the surface as not to damage significant amounts of interspersed tissue.Neutron Radiation: Very high-energy neutrons are created during nuclear fusion or nuclear fission processes. They can then be absorbed by an atomic nucleus, causing the atom to go into an excited state and it can emit gamma-rays. These photons will then excite the atoms around them, creating a chain-reaction, leading to the area to become radioactive. This is one of the primary ways humans are injured while working around nuclear reactors without proper protective gear. Non-ionizing Radiation While ionizing radiation (above) gets all the press about being harmful to humans, non-ionizing radiation can also have significant biological effects. For instance, non-ionizing radiation can cause things like sunburns. Yet, it is what we use to cook food in microwave ovens.  Non-ionizing radiation can also come in the form of thermal radiation, which can heat material (and hence atoms) to high enough temperatures to cause ionization. However, this process is considered different than kinetic or photon ionization processes. The Karl Jansky Very Large Array of radio telescopes is located near Socorro, New Mexico. This array focuses on radio emissions from a variety of objects and processes in the sky. NRAO/AUI Radio Waves: Radio waves are the longest wavelength form of electromagnetic radiation (light). They span 1 millimeter to 100 kilometers. This range, however, overlaps with the microwave band (see below). Radio waves are produced naturally by active galaxies (specifically from the area around their supermassive black holes), pulsars and in supernova remnants. But they are also created artificially for the purposes of radio and television transmission.Microwaves: Defined as wavelengths of light between 1 millimeter and 1 meter (1,000 millimeters), microwaves are sometimes considered to be a subset of radio waves. In fact, radio astronomy is generally the study of the microwave band, as longer wavelength radiation is very difficult to detect as it would require detectors of immense size; hence only a few peer beyond the 1-meter wavelength. While non-ionizing, microwaves can still be dangerous to humans as it can impart a large amount of thermal energy to an item due to its interactions with water and water vapor. (This is also why microwave observatories are typically placed in high, dry places on Earth, as to lessen the amount of interference that water vapor in our atmosphere can cause to the experiment. Infrared Radiation: Infrared radiation is the band of electromagnetic radiation that occupies wavelengths between 0.74 micrometers up to 300 micrometers. (There are 1 million micrometers in one meter.) Infrared radiation is very close to optical light, and therefore very similar techniques are used to study it. However, there are some difficulties to overcome; namely infrared light is produced by objects comparable to room temperature. Since electronics used to power and control infrared telescopes will run at such temperatures, the instruments themselves will give off infrared light, interfering with data acquisition. Therefore the instruments are cooled using liquid helium, so as to lessen extraneous infrared photons from entering the detector. Most of what the Sun emits that reaches Earths surface is actually infrared light, with the visible radiation not far behind (and ultraviolet a distant third). An infrared view of a cloud of gas and dust made by Spitzer Space Telescope. The Spider and Fly Nebula is a star-forming region and Spitzers infrared view shows structures in the cloud affected by a cluster of newborn stars. Spitzer Space Telescope/NASA Visible (Optical) Light: The range of wavelengths of visible light is 380 nanometers (nm) and 740 nm. This is the electromagnetic radiation that we are able to detect with our own eyes, all other forms are invisible to us without electronic aids. Visible light is actually only a very small part of the electromagnetic spectrum, which is why it is important to study all other wavelengths in astronomy as to get a complete picture of the universe and to understand the physical mechanisms that govern the heavenly bodies.Blackbody Radiation: A blackbody is an object that emits electromagnetic radiation when it is heated, the peak wavelength of light produced will be proportional to the temperature (this is known as Wiens Law). There is no such thing as a perfect blackbody, but many objects like our Sun, the Earth and the coils on your electric stove are pretty good approximations.Thermal Radiation: As particles inside of a material move due to their temperature the resulting kinetic energy can be described as the total thermal energy of the system. In the case of a blackbody object (see above) the thermal energy can be released from the system in the form of electromagnetic radiation. Radiation, as we can see, is one of the fundamental aspects of the universe. Without it, we would not have light, heat, energy, or life. Edited by Carolyn Collins Petersen.

Thursday, November 21, 2019

Homelessness Essay Example | Topics and Well Written Essays - 1750 words

Homelessness - Essay Example The sociological perspective applied to the research paper is social constructionism. This approach allows a researcher to examine and analyze development of homelessness in particular social contexts. This sociological perspective is chosen for analysis because the constructionist position emphasizes that the activities through which social problems like homelessness are constructed are both implicitly and intentionally. Social constructionism accounts for maintenance of social activities which lead to such problems as homelessness. Sociologists use the assumptions as a warrant for defining problems as real and observable social conditions, portraying their studies as objective analyses, and describing themselves as experts on social problems. The notion of homeless is difficult to define because it involves diverse social groups and diverse populations. Researchers propose different definitions which take into account different age groups and different social causes of homelessness, location and neighborhoods environment. For instance, Chamberlain and Johnson (2001) state that: "the literal definition equates homelessness with rooflessness', implying that homeless people are literally under the stars', or illegally occupying deserted premises" (p. 35). Traditional definitions of homelessness (Arden et al 2006) involve such groups as children, women, veterans, racial minorities, young mothers and drug users. Homeless are considered children who have been separated from their homeless parents and are in foster care or are living with relatives; a young mother and her children who have lived for two or three months at a time with different relatives during the past year or so, and who expect that, within the next few months , they will have to leave where they now live; a family or single person who migrated to a new town looking for work, lives with relatives, does not pay rent, cannot find work, and does not know how long the present arrangement will last or where to go if it terminates. A person can be defined as homeless if: there s no accommodation available for him/her, together with any other person who normally resides with him/her or who might reasonably expect to reside with him/her, which he/she can reasonably occupy or remain in occupation of" (Homeless n.d.). Homeless are considered people living in stable but physically inadequate housing (having no plumbing, no heating, or major structural damage, for example). The remainder is considered "at imminent risk" of literal homelessness, that is, if their current precarious housing arrangements fail, or if an institutional stay comes to a predictable end, they have neither prospects nor resources to keep themselves from literal homelessness (Luba and Davies 2006). A more expansive definition of homelessness includes the institutionalized who have no usual home elsewhere, the most unstable group among the precariously housed, or both. In terms of social constructionism, homelessness is caused by social conditions and circumstances which influence a person. Pervasive and rising homelessness is caused by social factors; that is, that it is a function of the way society's resources are organized and distributed. Luba and Davies (2006) emphasize a dramatically