Supraglacial Environment Analysis

Supraglacial Environment Analysis Some places on Earth are so cold that water is a solid—ice or snow [1]. These frozen places of our planet are called the Cryosphere by our Scientists.The term â€Å"Cryosphere† comes from the Greek word â€Å"kryos† which means cold, frost or ice and â€Å"sphaira† which means globe. Those regions of the Earth’s surface where water is in the solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps, ice sheets and frozen grounds (which includes permafrost) are referred to as cryosphere. The cryosphere is an integral part of the global climate system with important linkages and feedbacks generated through its influence on surface energy and moisture fluxes, clouds, precipitation, hydrology, atmospheric and oceanic circulation. Through these feedback processes, the cryosphere plays a significant role in theglobal climateand inclimate modelresponse to global changes [2]. Cryosphere is believed to be at the top and bottom of our planet, in the Polar Regions by most of the people. The area around the North Pole is the Arctic region and the area around the South Pole is the Antarctic region. Snow and ice are also found at many other locations on Earth, other than these two Polar Regions [1]. Located at the Earths South Pole, Antarctica is an icy continent. A huge ice sheet covers the land mass of Antarctica and, in some places, shelves of floating ice extend into the ocean. The outer sections of ice break off or calve from these shelves and form icebergs. The icebergs float in the oceans, melting and falling apart as they drift into warmer waters [1]. The Antarctic Ice Sheet is the largest mass of ice on Earth. Supraglacial Environment Literally, supraglacial means of, relating to, or situated or occurring at the surface of a glacier. Supraglacial environment consists of Supraglacial lakes and ponds, supraglacial streams and, supraglacial dust and debris. Supraglacial Lakes and Ponds Any pond of liquid water on the top of aglacier is called a supraglacial lake. Although these pools aretransient, they may reach kilometers in diameter and could be several meters deep. They usually last for months or even decades at a time, but can vacant in the course of hours. The lakes usually emerge from the assembly of summer meltwater in catchment basins. Supraglacial Streams A stream that flows over the surface of a glacier is called supraglacial streams. Most supraglacial streams descend viaMoulin into the depths or base of a glacier or originate from melting snow, ice fields and glacial ice. Supraglacial Dust and Debris Debris that is carried on the surface of a glacier is called supraglacial debris. It is also known as supraglacial moraines. It is normally derived from weathering processes that occur during seasonal precipitation, melt/ refreeze cycles or supraglacial activity (i.e. transport) rates and tends to be blocky angular boulders and sediments in character.Heavy volcanic supraglacial debris is composed of fine grained volcanic ash, tephra or large ballistics that is ejected during eruptions. The Polar Regions, are remote and often inaccessible, in terms of their location. Investigations based on field of the entire Polar Region are very strenuous, and rarely possible. Satellite remote sensing is a low cost solution to obtain excellent coverage of the Polar Regions from a view point in space. By using remote sensing data and techniques it is now possible to investigate the high latitude regions in a way that was unimaginable even a few decades ago. Over the past two decades, the Polar Regions have homogenously shown the first distinctive evidence of human industrial activity on Earth’s atmosphere and climate (Luban and Massom, 2007) [5]. The first was the 1985 discovery of the ozone â€Å"hole,† an annual disappearance of most of the ozone layer over Antarctica and the Southern Ocean, whose cause was quickly identified as an interaction between industrial chlorofluorocarbon pollutants and unique ice clouds that form in the extremely cold Antarctic stratosphere. More recently, both satellite data and submarine research cruises have documented the dramatic decrease in both geographic extent and thickness of Arctic sea ice, such that if no action is taken to curb industrial greenhouse gas emissions, Arctic sea ice could disappear altogether in the summer season by the end of this century. In 1981, India undertook its National Antarctic Program within the aegis of Department of Ocean Development (DOD) of the Government of India. ACentre dedicated to Antarctic Expeditions, named as ‘Antarctic Study Centre (ASC)’ was established at Goa in 1988.The ASC was eventually upgraded into an autonomous institute ‘National Centre for Antarctic and Ocean Research (NCAOR) under DOD (now known as Ministry of Earth Sciences). Maitri station was built in 1989 on the Schirmacher Oasis in Queen Maud Land. India previously operated the station Dakshin Gangotri from 1983 – 1989 which was abandoned after being buried in ice. Around 3,000 kilometers from Maitri station, India extended its Antarctic presence by building a new station named Bharati in the Larsemann Hills region.The Bharati station has been operational since 18th March 2012. Ordinarily, resolution is thought to be as the ability to separate and differentiate adjacent objects or items in a scene, be it in a photo, an image or real life. Frequently resolution is specified in terms of the linear size of the smallest features we can discriminate (often expressed in meters). But contrast impacts our ability to resolve between objects: if two items are the same color, they may be tough to separate, but if they are sharply different in color, tone, or brightness we can recognize them more clearly. Remote sensors estimate differences and variations of objects that are often reported in terms of four main resolutions, each of which affect the accuracy and functionality of remote sensors to habitat mapping. The details noticeable in an image are dependent on the spatial resolution of the sensor and refer to the size of the smallest possible feature that can be identified. Spatial resolution of passive sensors depends essentially on their Instantaneous Field of View (IFOV). The IFOV is the angular cone of visibility of the sensor (A) and determines the area on the Earths surface which is seen from a given altitude at one particular moment in time (B). The size of the area viewed is determined by multiplying the IFOV by the distance from the ground to the sensor (C). This area on the ground is called the resolution cell and decides a sensors greatest spatial resolution. For an analogous feature to be detected, its size generally has to be equal to or larger than the resolution cell. If the feature is smaller than this, it may not be detectable as the average brightness of all features in that resolution cell will be recorded. However, smaller features may sometimes be detectable if their reflectance influences within a particular resolution cell allowing sub-pixel or resolution cell recognition. Images where only large features are visible are said to have coarse or low resolution. In fine or high resolution images, small objects can be identified. Military sensors for example, are designed to for detailed view, and so have very fine resolution. Commercial satellites provide imagery with resolutions differing from a few meters to several kilometers. Usually finer the resolution, the less whole ground area would be visible. The ratio of distance on an image or map, to actual ground distance is called scale. If a map is with scale of 1:100,000, an object of 1cm length on the map would really be an object 100,000cm (1km) long on the ground. Maps or images with small map-to-ground ratios are referred to as small scale (e.g. 1:100,000), and those with larger ratios (e.g. 1:5,000) are called large scale. Spectral response and spectral emissivity curves specifies the reflectance and/or emittance of a feature or target across a range of wavelengths. Dissimilar classes of features and details in an image can frequently be distinguished by contrasting their responses over distinct ranges of wavelength. Extensive classes such as water and vegetation can generally be separated using very broad ranges of wavelength (the visible and near infrared). More specific classes like rock types may not be easily distinguishable using only these broad ranges of wavelength and require comparison at much finer ranges of wavelengths to separate them. Hence we require a sensor with higher spectral resolution for such specific classification. Spectral resolution describes the ability of a sensor to define fine intervals of wavelength. Finer is the spectral resolution, narrower will be the ranges of wavelength for a particular channel or band. As the spatial structure of an image is described by the arrangement of pixels, the actual information content in an image is described by the radiometric characteristics. The sensitivity of the image to the magnitude of the electromagnetic energy is determined by the radiometric resolution, whenever an image is captured on film or by a sensor. The radiometric resolution of an imaging system describes its ability to differentiate very slight contrast in energy. Finer the radiometric resolution of a sensor, more sensitive it is to detecting small differences in reflected or emitted energy. When a 2-bit image is compared with an 8-bit image, there is a large difference in the level of details observable depending on their radiometric resolutions. The concept of temporal resolution is also important to consider in a remote sensing system, in addition to spatial, spectral, and radiometric resolution. It is the concept of revisit period, which refers to the length of time it requires for a satellite to finish one complete orbit cycle. The revisit period is usually several days for a satellite sensor. Thus the absolute temporal resolution of a remote sensing system to image the exact same area at the same viewing angle a second time is equal to this period. Still some areas of the Earth tend to be re-imaged more frequently because of some degree of overlap in the imaging swaths of adjacent orbits for most satellites and the increase in this overlap with increasing latitude. Also, some satellite systems are able to point their sensors to image the same area between different satellite passes parted by periods from one to five days. So, the actual temporal resolution of a sensor depends on a variety of factors, including the satell ite/sensor capabilities, the swath overlap, and latitude. WorldView-2 is the first high-resolution 8-band multispectral commercial satellite launched in October 2009. It operates at an altitude of 770 km and provides 50 cm panchromatic resolution and 2 m multispectral resolution. The average revisit time of World View-2 is of 1.1 days and it is also capable of collecting up to 1 million km2 of 8-band imagery per day. Every sensor is narrowly concentrated on a specific range of the electromagnetic spectrum that is sensitive to a particular feature on the ground, or a property of the atmosphere. They are designed together to improve the segmentation and classification of land and aquatic features beyond any other space-based remote sensing platform. The agricultural growth, increased urbanization and natural processes all contribute towards the reshaping nature of land use and land cover around the globe. Remote sensing is recognized as an essential tool for understanding the changes over a large and small scale. Presently various satellites are being engaged to observe and study the globe. WV-2 brings out a high degree of detail to classification processes, with 8 strictly focused spectral sensors ranging from visible to near infrared, combined with 2 meter spatial resolution, enabling a finer level of intolerance and improving decision-making in both the public and private sector. The table given below explains the various characteristics of the important high resolution satellites. The World Viiew-2 is the satellite, which is having 0.5 m spatial resolution which has been used for this particular study. Features of World View-2 satellite are: Very high resolution The most spectral diversity commercially available 4 standard colors: Blue, Green, Red, NIR-1 4 new colors: Coastal, Yellow, Red Edge, NIR-2 Bi- directional scanning Orbit altitude: 770 km, sun-synchronous Dynamic range: 11-bits per pixel Swath width: 16.4 km at nadir Benefits of World View-2 satellite are: Provides highly detailed imagery for precise map creation, change detection, and in-depth image analysis. Geo-locate features to less than 5 m to create maps in remote areas, maximizing the utility of available resources. Collects, stores, and downlinks a greater supply of frequent update global imagery products than competitive systems. Stereoscopic collection on a single pass ensures image continuity and consistency of quality. Provides the ability to perform precise change detection, mapping and analysis at unprecedented resolutions in 8-band multispectral imagery. In addition to dedicated satellite instruments and programs that have monitored critical manifestations of climate and atmospheric change, such as the retreat of Arctic Sea Ice, the motion of the Antarctica Ice Sheets and the evolution of the ozone ‘hole’ in both polar regions, many serendipitous applications of satellite remote sensing have come forward for polar research. A survey of polar remote sensing accomplishments is particularly useful at this point in time, as the earth science community is experiencing a transition to a new generation of satellite remote sensing instruments with an order of magnitude greater capability than their predecessors. The Antarctica ice sheet alone covers an area of ~12.4Ãâ€"106 km2, and averages ~2.4 km in thickness, with a maximum of ~4.7 km (in the Wilkes sub-glacial basin between Casey and Vostok) and a volume of ~25.7Ãâ€"106 km3. It stores ~90% of the world’s ice, equivalent to ~70% of its freshwater or an approx. 65 m rise in global sea level was it to melt. This Antarctica Ice sheet play a central role in the global climate system, interacting in a complex fashion with the atmosphere and ocean, acting as major hemispheric heat sinks as a result of the radiatively induced Equator to pole temperature difference, and dominating the high-latitude radiation balance by virtue of their high albedo. Ice sheets have profound direct and indirect impacts on patterns of oceanic and atmospheric temperature and circulation and also biogeochemical cycles [11]. Studying and analyzing Antarctica using satellite remote sensing is not an old practice. It started way back in 1972 with the launch of Landsat-1(formerly ERTS-1). It kept on growing since then with the use of microwave and thermal remote sensing datasets. Moderate Resolution Imaging Spectrometer (MODIS) datasets have played a vital role in understanding this remote continent. In this research we have applied a combination of existing image processing methods and a novel feature extraction workflow to DigitalGlobe’s WorldView-2 (WV-2) satellite imagery, in order to study Antarctica at maximum achievable spatial resolution. Our protocol also compares widely used image fusion algorithms all over the researcher’s community. During the past 30-40 years, satellite and other remote sensing methods have provided a massive wealth of new data to transform understanding of the Antarctic. While important, field measurements are logistically demanding, expensive, and scanty. Satellites can measure and monitor remote and vast areas in a sustained, consistent, systematic, repetitive, and cost-effective fashion and on a variety of scales alone. Using high-spatial resolution data is the only practical approach for generating detailed and accurate information on the landscape and land cover in the Antarctic, where field measurements are laborious. The capabilities of these state-of-the-art satellites have not been thoroughly explored for mapping land cover in cryospheric regions. Widely, sea-ice spectral reflectance (ratio of radiant energy reflected by a body to that incident upon it) depends upon its age and thickness, and the presence/absence of a snow cover. Snow reflectance depends on the refractive index of ice, grain-size distribution, density, depth, and liquid-water content. Maps of surface albedo (the ratio of upwelling to down welling radiative flux at the surface) can be retrieved from satellite radiance data after accurately masking cloud, correcting atmospheric effects, and converting angular measurements to the ‘‘full hemisphere’’ angular distribution of the surface (the bidirectional reflectance distribution function [BRDF]). While the broadband albedo of ice-free ocean is ~0.05-0.1 that of sea ice ranges from ~0.1 to ~0.9 enabling ice-ocean discrimination and ice type classification. The strong sensitivity of NIR radiation to snow grain-size growth with melting further enables the detection/monitoring of seasonal mel t/refreeze. Ice-sheet surface grain size is itself retrievable from 1.6 mm data (e.g., from the Global Imager [GLI] aboard ADEOS-II [operational from 2002–2003]). High and very high resolution sensors acquire data over a narrow swath (

Vertical Structure of Japanese Society

It promulgates the values of filial piety and harmonious relationship between the universe and oneself. It became the official gulden philosophy during the Outages period and It helped legitimate the Outages Shogun rule through its concepts of â€Å"a hierarchical society in accord with nature, of benevolent paternalism in government, of an ethical basis for administration, and of a meritorious Harmony was established through reciprocal benevolent ruling and obedience from their subjects.Social stratification of the Samurai, Peasant, Artisan and Merchant was also developed in a animal vein, with merchants seen as the lowest class as they are deemed as parasites under Neo Confucian values. It is not surprising that the IEEE (household/ family) system was also created during this period. The ‘e system placed great emphasis on family tradition and Its continuity, Members of an lee are expected to see themselves as one collective unit and work towards the greater good of the house hold and not for oneself.The head of the household is typically the eldest male heir and wields absolute power and responsibility. The lee system essentially placed emphasis on the parent-child (vertical) relationship over the husband-wife horizontal) relationship. This can be seen in the code of obligations for samurai promulgated In 1684[2]. The hierarchical social structure continues to be rigidly defined in modern Japan, and has brought about many societal norms and practices unique to Japan.The idea of a â€Å"good wife, wise mother†[3] was introduced In the Mel]/ period and continued to define gender roles in Japan until the late 20th century. The men were expected to take up arms for the nation's imperialist ideals and subsequently serve as corporate warriors In the lead up to post World War Two economic miracle. Thus the men devoted his life to work and serving his boss, while the women devoted their life to child rearing and their education, perpetuating the signific ance of vertical relationships In Japan.The Bunyan-kabob-relationship Is a vertical relationship that makes the relationship between an employer and his employee reminiscent of a parent-child relationship. It is a long term and deeply personal relationship that forms the basis of lifetime employment seniority system in Japan. The sample-kohl- relationship is another vertical relationship where seniors who are more experienced re duly respected by juniors who lack the experience and who needs to learn from seniors.

Dissociation Constant Weak Acids Essay

Introduction: The dissociation constants of weak monoprotic acids were determined with the aid of a buffer and pH meter. Experiment: This experiment was performed according to the procedures as provided in the Chemistry 111B laboratory manual: Po, Henry and Senozan, N. â€Å"General Chemistry Experiments Chemistry 111B†, 8th Ed., 2004 Hayden-McNeil Publishing, pp 80-88. To determine the dissociation constants of weak monoprotic acids (HX and HY), a buffer was needed to calibrate the pH meter. According to the manual, all four solutions to the experiments had to be carried out first before the calibration was performed. The following materials were obtained to conduct the parts of the experiment: 1) several 10-mL and 50-mL graduated cylinders to measure the volumes of acid and base, and 2) a thermometer to record the temperature of the solution. In the first half of the experiment, the Ka of HX had to be used and determined and in the second half, the Ka of HY was utilized and established using the same procedure. In the first part of the experiment, the pH and temperature was to be measured of a 10 mL sample of 1.02 M HA (when conducting the second half of the experiment, the concentration of HY was 1.00 M). The second part of the experiment was to add 20 mL of 1.0 M NaA to 10 mL of 1.00 M HA, and to draw 10 to 15 mL of the solution to measure the pH and temperature. For the third part of the experiment, 10 mL of the  remaining buffer from part 2 was diluted with 50 mL of distilled water. The pH and temperature was measured for this part of the experiment. The last part of the experiment was to mix 10 mL of NaOH to 25 ml of HA (both HX and HY had a concentration of 1.00 M, and the NaOH concentration was 1.00 M), and to measure the pH and temperature of the solution. When all the solutions were stirred and measured for, the pH meter was to be calibrated. The first step was to obtain a packet of perpHect pH 4.01 buffer  and set up the open packet in a beaker. The next step was to place the pH meter into the buffer and calibrate the reader that was connected to the meter. When the reader was calibrated to a pH of 4.01, the solutions were ready to be determined. After each measurement in the solution, the pH meter had to be cleaned with a few drops of distilled water and calibrated back to 4.01 in the buffer pouch. Results and Discussions: In the first half of the experiment using HX, the pH reading for the first part of the experiment was 2.36 and the temperature was 26 C. When equilibrium was reached, it was calculated (on data sheet) that the Ka was 2.03 X 10 .In the second part of the experiment, the pH was 4.94 and the temperature was 28 C. The Ka was found to be 2.07 X 10 . For the third part of the experiment, a 4.47 pH was measured from the solution and a temperature of 27 C. The Ka for this part was 2.57 X 10 . Lastly, the pH of the solution for part 4 was 4.47 and had a temperature of 27 C with a Ka reading of 2.29 X 10 . For the second part of the experiment dealing with HY, readings of 1.95, 25 C, and 1.27 X 10 were measured for pH, temperature, and Ka, respectively. In the second part of the experiment, the pH reading was 2.94 with a temperature of 26 C and a Ka of 2.31 X 10 .In the third part of the experiment, a pH measurement, temperature, and Ka values were found to be 2.95, 26 C, and 2.32 X 10 , respectively. In the last part of the experiment, the pH reading was 2.58 with a temperature of 27 C. The Ka for this particular solution was 1.78 X 10 . Assumptions that were made from this experiment was that the Ka values for HX and HY were similar except for part 1. Part 1 was excluded in the averages in the data sheet because since no base is present in the solution, a different Ka value will be given then the other solutions which had base in the solution. Also, since the solutions of the experiment were prepared first before calibrating the pH meter, the group received a better pH reading because the pH of the solutions were measured one after the other. Conclusion: In the experiment, it was seen that the dissociation of weak monoprotic acids were constant for HX and for HY given from the Ka values.

The effects of birth control essays

The effects of birth control essays Todays woman has many birth control options that allow her to plan whether or not she has children, when she has children, and the age difference between her children. This paper is designed as an overview of available options about choosing a birth control method that matches the physical, emotional and lifestyle needs. I personally feel that the pill is a excellent, affordable, 99.5% effective method of birth control. According to Contraceptive Technology, combination pills are approximately 99.9 percent effective if used perfectly. What that means is that one in 1,000 women taking the Pill will get pregnant in the period of a year. In real-life use, about 3 percent of users get pregnant in the course of a year Statistics state that this is usually due to missing one or more pills. However, two things that should be remembered. Statistics are not everythingthe best form of birth control is the one you will use correctly and consistently. Oral contraceptives provide no protection from sexually transmitted diseases such as HIV. So if that is a concern, you should combine the Pill with condoms for an unbeatable combination! At any stage of life, a woman may find that one method of birth control suits her needs better than others. Periodic review of available birth control options will help ensure in choose a method that best meets your current lifestyle. Some factors to consider that might be important include method effectiveness, permanency, convenience and protection against sexually Some questions that I have are, how safe and effective is the method, will the method affect my sex drive or my partners sex drive, is there an age at which I should stop using hormone-based contraceptives, will the birth control method affect my ability to have children in the future, what are my birth control options if I am breastfeeding, what birth control method would you ...

Heroic Figures of the 21st Century Steve Jobs and Julian Assange essay

Heroic Figures of the 21st Century Steve Jobs and Julian Assange essay Heroic Figures of the 21st Century: Steve Jobs and Julian Assange essay Heroic Figures of the 21st Century: Steve Jobs and Julian Assange essayThe 21st century is the century of new technologies and overwhelming power of information. The 21st century is often associated with the age of information that means that information plays the key part in the life of the society and global community. In this regard, individuals, who contribute to the development of information technologies and facilitate information sharing or contribute to the sharing of information and knowledge, play an important part in the life of the society or even the entire world. This is why many heroic figures of the 21st century are closely associated with the world of high information technologies, communications, and science. At this point, it is possible to refer to such figures as Steve Jobs or Julian Assange, who may be viewed as heroic, although the latter is quite controversial. In fact, views on these figures may vary but their impact on the world in the 21st century can hardl y be underestimated, while their role in the development of the modern world has been already recognized internationally (Hesselbein, Goldsmith Beckhard 129). In such a way, Steve Jobs and Julian Assange are two heroic figures, who have made the information available to the public and shared by the public to make the public more capable to control the government and policy makers.Steve Jobs was one of the prominent figures in the business world and in the field of information technologies, who had made the breakthrough of Apple, reviving the company and helping the company to introduce innovative products that have revolutionized the IT industry and telecommunication systems. At this point, it is worth mentioning the major innovations introduced by Apple under Steve Jobs, iPod and iPhone, which revolutionized the IT and telecommunication industry. In actuality, his name is closely intertwined with the development and successful introduction of innovations that have changed the mode rn world, especially iPhone (Trent 32). Moreover, it is Steve Jobs, who has revived the now popular brand Apple, which faced a steep decline and was in a deep crisis, when Jobs returned to the company. In such a way, he became the person, who contributed to the mass production of what used to be the most popular smartphones, when it has been just introduced, and what is now still one of the most popular smartphones in the world.  Today, Steve Jobs is the iconic figure associated with the revolution in the field of information technologies and telecommunications, since Steve Jobs made high technologies available to mass consumers bringing them virtually universal mobile device which is still one of the most popular product and every new generation of iPhone takes a large share of the global market. At this point, it is worth mentioning the fact that Steve Jobs did not just introduce the device that became extremely popular in the world but he contributed to the introduction of the device that has changed how people communicate or even live. Moreover, it was Steve Jobs, who contributed to the development of the particular lifestyle of clients, who own iPhones and, thus, it was him, who shaped the target customer group of the main product of Apple under his lead. Steve Jobs was responsible for the performance of all departments of Apple, including sales and promotion ones. This is why the image of the lifestyle of iPhone users created by the company was, to a significant extent, created by Steve Jobs, while currently there are millions of users of iPhones worldwide.However, the major achievement of Steve Jobs is not the technological breakthrough, Apple has made under his lead, but his contribution to the business development of the company.   Steve Jobs became the leader, who has managed to change the company, to revive Apple and help the company to regain its position as one of the leaders in the IT industries. His leadership style and his personality becam e iconic for many leaders, who try to follow his lead and to conduct changes in their companies as successfully as he did. But what makes him different and unique and, therefore, heroic, is his uniqueness since many try to use the same strategy and policies, which he applied to Apple, but it was only him who has managed to apply those strategies and policies successfully. Some researchers (Benfari 191) even speak about the phenomenon of Jobs’ leadership, which was far from perfect or ideal from the standpoint of a subordinate but which has proved to be extremely efficient from the organizational standpoint. In the time of multinational corporations and complex organizational structures of public and private organizations such leadership is very important and Steve Jobs is recognized as one of the most successful and efficient leaders in the 21st century world so far.Steve Jobs became the iconic figure because the public perceived him as a person, who made technologies closer to people. Moreover, iPhone and other advancements of Apple under the lead of Steve Jobs has eliminated frontiers between people making communication more effective and closer to people. As a result, people have expanded their communication opportunities due to innovations introduced by Apple under Steve Jobs’ lead. As Jobs was the leader, the public personifies the major achievements of Apple in the 21st century with him. At the same time, Steve Jobs became the iconic figure as a new type of leader, who can lead the organization through consistent, revolutionary changes and bring it to success.Furthermore, some proponents of Steve Jobs view him as an opponent of the government machine that attempts to set control over people and their private life because new technologies introduced by Apple under his lead had opened new opportunities for information sharing that limited opportunities for the government to manipulate with the public opinion (Sarewitz, Pielke Keykhah 147). I n this regard, Steve Jobs has offered people with the universal means that they can use for sharing information immediately, regardless of their physical location due to the wide opportunities for the communication offered by the device (Mars Frosdick 125). In fact, iPhone has changed the philosophy of the communication and many people attribute this change to Steve Jobs as the person responsible for the introduction and promotion of iPhone in the global market. To put it more precisely, people have got ample opportunities not only to talk to each other or send messages each other but also they have got access to online resources, share various information and files of different types, and conduct many other operations, including payments and others via their iPhones, and many of those opportunities were options uniquely attributed to iPhones by that time.Heroic Figures of the 21st Century: Steve Jobs and Julian Assange essay part 2

History and Political Science; A Response to Historical Cases Essay

History and Political Science; A Response to Historical Cases - Essay Example Of particular interest is to understand the implications of the Pericles’ oration (Thucydides 34) with respect to what is known of Athens. In evaluating Pericles’ speech, it is imperative to decipher the underpinning points in the speech, as depicted by Thucydides (pp 34-46). First, Pericles begins by acknowledging the need to hold ceremonies for those who dead for the country. He proceeds to assert that all that had happened was necessary. He was in line with the law, as well as the democracy requirements. In elucidating his point, he pays tribute to the ancestors, acknowledging them for creating a worth-celebrating history for the Athenians. He cites how the empire and its possession would have been without the sacrifice of the ancestors and that it was only justified for him to uphold the legacy. Pericles presents Athens as exceptional, in terms of its laws, justice, social equality, mobility and inclusivity of migrants, and that everyone had an equal opportunity to serve the nation. The aspect of Athens to offer social refreshment, such as games is not also overlooked. He affirms Athenian determination to shun all the challenges, as well as respecting the neighbors. He eventually justifies the point that the fallen men should not be the cause of any consolation. Instead, such a point brings comfort to the Athenian community. The crucial question is whether Pericles’ insight holds any validity. In particular, does Athens fit into the doctrine of exceptionalism, as presented? Moreover, is Pericles’ point about the fallen justified? In my view, whereas there are certain aspects of exceptionalism that could be justified about the historical Athenian society, others cannot. For instance, it is agreeable that the ancestors had a crucial role in creating history for posterity, considering that imperialism was the order of the time. The affirmation of respect of law and democracy also reflect the historical nature of Athens. This is beca use Athens historical government is widely cited as the mother or even the correlate of the sophisticated and desired contemporary democracy. Indeed, one avenue of viewing at Pericles’ forefather reference could act as a base the role which Athens played in Greek history. Perhaps he was referring to the growth of the government of Athens as well as the role which the forefathers played. Pericles next statement is that the city of Athens was great and served as a symbol of inspiration as the pioneer of true democracy (Halsall 39). Thucydides uses parallelism whereby Pericles talks of Athenian s’ reputation compared to other armed forces, as well as the Athenian self belief. However, the theme of imperialism cannot be left out of his speech. One questions whether this could also be an aspect of exceptionalism. Doesn’t it contravene the affirmation to respect the autonomy of the neighbors? I infer that whereas Pericles stand reflect the interest of the Athenians, i t is advanced on the basis of nationalism, which can be dismissed as a thesis of societal selfishness. Response to part two: Robert, the Monk's account of Pope Urban II's call to crusade During the 11th century, when states like France and Britain had not emerged, Christianity united the states of Europe. All European states took part in religious wars against Muslims in what was known as the Crusades. Both Christians and Muslims committed atrocities against human beings although each side claimed to be fighting for a just course. At the

Questions Assignment Example | Topics and Well Written Essays - 2500 words

Questions - Assignment Example Secondly, many of the practices of Ancient Egypt still exists in various forms in African societies. And although most of these practices have systematically disappeared over the past 500 years due to Islamic and Christian influences, most African tribes continue to pay homage to the dead and some even worship ancestors. This is the exact traditions that were held sacred in Ancient Egypt. This is because the Egyptians saw their leaders as a link between the contemporary society and the supernatural world. Hence, there was a lot of attention that was given to the leaders of the community. The beliefs in the Afterlife led to the creation of pyramids which exist to this day as a way of keeping the Pharaohs eternally alive. Although Africans moved from these regions many years ago, they still have traditions like preserving the dead, having very elaborate funerals and the beliefs in spiritual systems and structures similar to what existed in Ancient Egypt. The culture and political struc tures of Africa continue to show resemblance with what existed in Egypt. Paleontology primarily shows evidence of changes in weather and other natural conditions that explains the need for Africans to move in various directions from the Nile Valley. Global warming and other challenges like war caused Africans to move in other directions. Then the desertification of the mid-section of Africa led to the creation of what is now the world’s largest desert. This caused Africans to move further south. And when the Sahara was fully formed, most Africans could not move to North Africa to link up to mainstream activities and technologies. Therefore, they moved in small scattered communities that were in the interior of West Africa and East Africa. Other conditions caused Africans to move further down south to places like the coast of West Africa, Central Africa and Southern Africa. After the decline of Classical Egypt, persons