Mapleland Fiber Network (MFN) Essay Example for Free

Mapleland Fiber Network (MFN) Essay The city of Mapleland, Oregon, which owns and operates its own power utility, built a fiber-optic network to monitor power meters at residents’ homes. The network is called Mapleland Fiber Network (MFN). Because MFN had more capacity than was needed to monitor meters, the city expanded its services to offer access to the network for citybusinesses. The businesses use the network to communicate with each other and to access the Internet. At the MFN headend, which is located with the city government offices, three routers and WAN links connect to the Internet for use by the city. The businesses on MFN also use these routers to reach the Internet. In addition to the business service, MFN also offers cable modem service to homes. A cable modem router at the MFN headend connects to the fiber-optic network. In the city neighborhoods, hybrid fiber-coax nodes bring coax cabling to each street and into the homes for cable modem Internet access. The MFN backbone consists of a fiber-optic Gigabit Ethernet network that runs through the city in a ring topology. The fiber-optic ring connects the hybrid fiber-coax nodes that bring coax cabling to each neighborhood. Also connected to the ring are six data routers. Each router links one or more Mapleland businesses to MFN via simple point-to-point connections. At the business, the fiber-optic network enters the building and connects to a media converter. A UTP cable connects to the media converter and typically to a 100-Mbps Ethernet switch. The switch links the business’s computers and servers in a star opology via UTP cabling. 1. Draw a network map that shows the topology of the MFN and how the main components are connected. 2. What other information would you gather to improve your map and add more detail? 3. Mapleland is considering expanding the MFN to include wireless access for its residences. What additional investigation will you do to prepare for a citywide wireless network? 4. What security concerns do you have for the wireless network?

René Magritte Essay -- Arts Paintings Art History

Renà © Magritte Belgian Surrealist artist Renà © Magritte was a master not only of the obvious, but of the obscure as well. In his artwork, Magritte toyed with everyday objects, human habits and emotions, placing them in foreign contexts and questioning their familiar meanings. He suggested new interpretations of old things in his deceivingly simple paintings, making the commonplace profound and the rational irrational. He painted his canvasses in the same manner as he lived his life -- in strange modesty and under constant analysis. Magritte was born in 1898 in the small town of Lessines, a cosmopolitan area of Belgium that was greatly influenced by the French. Twelve years later, Magritte, along with his parents and two younger brothers, moved to Chà ¢telet, where the future artist studied sketching. On vacations with his grandmother and Aunt Flora during the summer months, Magritte frequented an old cemetery at Soignies. In this cemetery, Magritte often played with a little girl, opening trap doors and descending into underground vaults. This experience would prove a great influence upon his later artwork, as wooden caskets and granite tombstones recur in many of his paintings. Magritte also developed a fascination with religion around this time, often dressing up as a priest and holding mock mass services in complete seriousness. In 1912, Rà ©gina Bertinchamp, Magritte's mother, committed suicide by drowning herself in the Sambre River. The night of her suicide, the Magrittes followed Bertinchamp's footprints to the river, where they found her dead with her nightgown wrapped around her face. Magritte was 14 at the time. He would claim years later that his only recollection of his mother's death was his pride at being the center of attention and his subsequent identity formation as the "son of a dead woman." Some critics point out that several of the subjects in Magritte's paintings are veiled in white sheets as a reference to his mother's suicide. A year later, Magritte's father moved the family to Charleroi. It was in Charleroi that Magritte would meet his future wife Georgette Berger on a carousel at the town fair. However, the two would not see one another again until a chance meeting in Brussels years later. In Charleroi, Magritte quickly lost interest in his studies and asked his father for permission to study at the Acadà ©mie des Beaux-Arts in Brussels. ... ... Faubourg in Paris. The exhibition caused much scandal, but won few admirers. Soon after, Magritte resigned to his original style, though he bitterly attributed this retroaction to his desire to please Georgette, who preferred his earlier paintings. He continued to acquire much success all over the world with paintings such as L'Empire des Lumià ¨res (The Empire of Lights, 1954), which employed standard Surrealist techniques and precise Magritte lines. On August 15, 1967, Magritte died in Brussels. Unlike many of his Surrealist counterparts, Magritte lived quite humbly and incon uously. He did not draw much attention to himself, and he lived life relatively uneventfully. Despite his unassuming lifestyle, though, Magritte managed to leave an artistic legacy of transforming the ordinary into the fantastic. While some art historians attribute Magritte's art to his desire to oppose and combat the triviality of everyday life, others suggest that his work goes beyond escapism and serves to reveal some of the murkier and complex aspects of the human condition. Whatever the impetus was for his art, it is certain that Magritte's works are at once hauntingly beautiful and deeply provocative.

Health Improvement Essay

To address this challenge, the world’s governments committed themselves at the United Nations Millennium Summit to the Millennium Development Goals, including the overarching goal of halving extreme poverty by the year 2015. Yet, our planet’s capacity to sustain us is eroding. The problems are well-known – degrading agricultural lands, shrinking forests, diminishing supplies of clean water, dwindling fisheries, and the threat of growing social and ecological vulnerability from climate change and loss of biological diversity. While these threats are global, their impacts are most severe in the developing world – especially among people living in poverty who have the least means to cope. Is this environmental decline inevitable in order for poverty to be reduced? We argue not. Indeed, quite the opposite is true. If we do not successfully arrest and reverse these problems, the world will not be able to meet the Millennium Development Goals, particularly the goal of halving extreme poverty. As this paper demonstrates, tackling environmental degradation is an integral part of effective and lasting poverty reduction. The 2002 World Summit on Sustainable Development (WSSD) provides the international community with a pivotal opportunity to redirect the global debate, and to forge a more integrated and effective global response to poverty and environmental decline. To succeed, we need to focus on the most important links between poverty, the environment and sustainable development. For many, ensuring sound environmental management means curtailment of economic opportunities and growth, rather than their expansion †¦ too often; it is viewed as a cost rather than an investment. Prepared as a contribution to the 2002 World Summit on Sustainable Development focuses on ways to reduce poverty and sustain growth by improving management of the environment, broadly defined. It seeks to draw out the links between poverty and the environment, and to demonstrate that sound and equitable environmental management is integral to achieving the Millennium Development Goals, in particular eradicating extreme poverty and hunger, reducing child mortality, combating major diseases, and ensuring environmental sustainability. Four priority areas for sustained policy and institutional change are highlighted: ?Improving governance for pro-poor and pro-environment policies, institutions and services, with particular attention to the needs of women and children; ?Enhancing the assets of the poor and reducing their vulnerability to environment-related shocks and conflict; ?Improving the quality of growth to protect the asset base of the poor and expand opportunities for sustainable livelihoods; ?Reforming international and industrialized country policies related to trade, foreign direct investment, aid and debt. Policy opportunities exist to reduce poverty and improve the environment The environment matters greatly to people living in poverty. The poor often depend directly on natural resources and ecological services for their livelihoods; they are often the most affected by unclean water, indoor air pollution and exposure to toxic chemicals; and they are particularly vulnerable to environmental hazards such as floods and prolonged drought, and to environment-related conflict. Addressing these poverty-environment linkages must be at the core of national efforts to eradicate poverty. Many policy opportunities exist to reduce poverty by improving the environment – but there are significant and often deeply entrenched policy and institutional barriers to their widespread adoption. The past decade of experience since the 1992 Earth Summit in Rio reveals some important lessons that help point the way forward. Three broad lessons are highlighted here: ?First and foremost, poor people must be seen as part of the solution – rather than part of the problem. Efforts to improve environmental management in ways that contribute to sustainable growth and poverty reduction must begin with the poor themselves. Given the right incentives and support – including access to information and participation in decision-making – the poor will invest in environmental improvements to enhance their livelihoods and well-being. At the same time, however, it is essential to address the activities of the non-poor since they are the source of most environmental damage. The environmental quality of growth matters to the poor. Environmental improvement is not a luxury preoccupation that can wait until growth has alleviated income poverty, nor can it be assumed that growth itself will take care of environmental problems over the longer-term as a natural by-product of increasing affluence. First, this ignores the fundamental importance of environmental goods and services to the livelihoods and well-being of the rural and urban poor. Second, there are many examples of how bad environmental management is bad for growth, and of how the poor bear a disproportionate share of the costs of environmental degradation. Ignoring the environmental soundness of growth – even if this leads to short-run economic gains – can undermine long-run growth and its effectiveness in reducing poverty. ?Environmental management cannot be treated separately from other development concerns, but requires integration into poverty reduction and sustainable development efforts in order to achieve significant and lasting results. Improving environmental management in ways that benefit the poor requires policy and institutional changes that cut across sectors and lie mostly outside the control of environmental institutions – changes in governance, domestic economic policy, and in international policies. Improving governance ?Integrate poverty-environment issues into nationally-owned poverty reduction strategies, including macroeconomic and sect oral policy reforms and action programmes, so that they can become national sustainable development strategies. Engage poor and marginalized groups in policy and planning processes to ensure that the key environmental issues that affect them are adequately addressed, to build ownership, and to enhance the prospects for achieving lasting results. Address the poverty-environment concerns of poor women and children and ensure that they are given higher priority and fully integrated into poverty reduction strategies and policy reforms – for example, the growing burden of collecting scarce water and fuelwood supplies, and the effects of long-term exposure to polluted indoor air. Implement anti-corruption measures to counter the role of corruption in the misuse of natural resources and weak enforcement of environmental regulations – for example, the destructive impacts of illegal logging and unregulated mining, or the preference for construction of new power and water investments over increasing the efficiency of existing investments. ?Improve poverty-environment indicators to document environmental change and how it affects poor people, and integrate into national poverty monitoring systems. This should be complemented by measures to improve citizens’ access to environmental information. Enhancing the assets of the poor ?Strengthen resource rights of the poor by reforming the wider range of policies and institutions that influence resource access, control and benefit-sharing, with particular attention to resource rights for women. This includes central and sub-national government, traditional authorities, the legal system, and local land boards, commissions and tribunals. Support decentralization and local environmental management – land, water and forest resource management, and provision of water supply and sanitation services – by strengthening local management capacity and supporting women’s key roles in managing natural resources. ?Expand access to environmentally-sound and pro-poor technology, such as crop production technologies that conserve soil and water and minimize the use of pesticides, or appropriate renewable energy and energy e fficient technologies that also minimize air pollution. This includes support for indigenous technologies, and the need to address the social, cultural, financial and marketing aspects of technical change. ?Promote measures that reduce the environmental vulnerability of the poor by strengthening participatory disaster preparedness and prevention capacity, supporting the formal and informal coping strategies of vulnerable groups, and expanding access to insurance and other risk management mechanisms. Reduce the vulnerability of the poor to environment-related conflict by improving conflict resolution mechanisms in the management of natural resources and addressing the underlying political issues that affect resource access. Improving the quality of growth ?Integrate poverty-environment issues in economic policy and decision-making by strengthening the use of environmental assessment and poverty social impact analysis. Improve environmental valuation at both the macro and micro level, in order to highlight the full cost of environmental deg radation for the poor in particular and the economy in general, and to improve economic decision-making. ?Expand private sector involvement in pro-poor environmental management to maximize the efficiency gains from private sector participation, while safeguarding the interests of the poor. This requires capacity within government to negotiate with the private sector – for example, to ensure that utility privatization benefits the poor – and to forge effective public-private partnerships that enhance the poor’s access to environmental services. ?Implement pro-poor environmental fiscal reform including reform of environmentally-damaging subsidies, improved use of rent taxes to better capture and more effectively allocate resource revenues, and improved use of pollution charges to better reflect environmental costs in market prices. Reforming international and industrialized country policies ?Reform trade and industrialized country subsidy policies to open up markets to developing country imports while avoiding environmental protectionism, and to reduce subsidies that lead to unsustainable exploitation – such as subsidies for large-scale commercial fishing fleets that encourage over-harvesting in developing country fisheries. . Make foreign direct investment more pro-poor and pro-environment by encouraging multinational corporations to comply with the revised OECD Code of Conduct for Multinational Enterprises, and to report on the environmental impact of their activities in line with the UN Environment Programme’s Global Reporting Initiative. ?Increase funding for the Global Environment Facility as the major source of funding for global public goods in the environment, such as a stable climate, maintenance of biodiversity, clean international waters and the protective ozone layer. These benefit the whole world as well as the poor themselves – so the rich world must pay a fair share for their maintenance. ?Enhance the contribution of multilateral environmental agreements (MEAs) to national development objectives by strengthening developing country capacity to participate in the negotiation and implementation of MEAs (for example, to ensure that the Clean Development Mechanism promotes investments that benefit the poor). Also, improved coordination is needed between MEAs so that scarce developing country capacity is used most effectively. ?Encourage sustainable consumption and production – industrialized country consumers and producers through their trade, investment, pollution emissions and other activities affect the environmental conditions of developing countries. Making rich country consumption and production more sustainable will require a complex mix of institutional changes – addressing market and government failures as well as broad public attitudes. Enhance the effectiveness of development cooperation and debt relief with more priority for poverty-environment issues, particularly for the poorest countries where aid and debt relief continue to have a valuable role to play in helping governments to make many of the changes recommended above. Mainstream environment in donor agency operations through staff training, development and application of new skills, tools and approaches, and revisions to the way resources and budgets are allocated. Transparent monitoring of progress against stated objectives and targets is needed in order to hold development agencies accountable and to ensure that a commitment by senior management to addressing poverty-environment issues is put into practice throughout the organization. Conclusion This paper looks ahead with some degree of hope and optimism for the future – there are sometimes win-win opportunities, and there are rational ways of dealing with trade-offs. Environmental degradation is not inevitable, nor the unavoidable result of economic growth. On the contrary, sound and equitable environmental management is key to sustained poverty reduction and achievement of the Millennium Development Goals. There are significant policy opportunities to reduce poverty and improve the environment, but more integrated and pro-poor approaches are needed. The World Summit on Sustainable Development is an opportunity to focus on what is most important and to forge a coherent framework for action, with clear goals and achievable targets backed-up by adequate resources and effective and transparent monitoring mechanisms. There can be no more important goal than to reduce and ultimately eradicate poverty on our planet. PART 1 Why the Environment Matters to People Living in Poverty â€Å"Water is life and because we have no water, life is miserable† (Kenya) â€Å"We think the earth is generous; but what is the incentive to produce more than the family needs if there are no access roads to get produce to a market? † (Guatemala) â€Å"In the monsoons there is no difference between the land in front of our house and the public drain. You can see for yourself† (India) In their own words, the environment matters greatly to people living in poverty. Indeed, poor people’s perceptions of well-being are strongly related to the environment in terms of their livelihoods, health, vulnerability, and sense of empowerment and ability to control their lives. Figure 1 provides a simplified framework for understanding how environmental management relates to poverty reduction, and why these poverty-environment linkages must be at the core of action to achieve the Millennium Development Goals and related national poverty eradication and sustainable development objectives. Environmental management for poverty reductionDimensions of povertyDevelopment goals Part 1 of the paper focuses on the poverty-environment relationship by examining how environmental conditions in both rural and urban settings relate to three key dimensions of human poverty and well-being: ?Livelihoods – poor people tend to be most dependent upon the environment and the direct use of natural resources, and therefore are the most severely affected when the environment is degraded or their access to natural resources is limited or denied; Health – poor people suffer most when water, land and the air are polluted; ?Vulnerability – the poor are most often exposed to environmental hazards and environment-related conflict, and are least capable of coping when they occur. We also are concerned with the relationship between growth and the environment and how it affects the poor and efforts to reduce poverty. The environmental soundness of growth matters considerably to the poor, and countries with similar levels of income and growth can have quite different levels of environmental performance. While Figure 1 illustrates the main pathways between environmental conditions and dimensions of poverty, in reality these linkages are multi-dimensional, dynamic and often inter-connected: ?Poverty is now widely viewed as encompassing both income and non-income dimensions of deprivation – including lack of income and other material means; lack of access to basic social services such as education, health and safe water; lack of personal security; and lack of empowerment to participate in the political process and in decisions that influence one’s life. The dynamics of poverty also are better understood, and extreme vulnerability to external shocks is now seen as one of its major features. Environment refers to the biotic and abiotic components of the natural world that together support life on earth – as a provider of goods (natural resources) and ecosystem services utilized for food production, energy and as raw material; a recipient and partial recycler of waste products from the economy; and an important source of recreation, beauty, spiritual values and other amenities. The nature and dynamics of poverty-environment linkages are context-specific – reflecting both geographic location and economic, social and cultural characteristics of individuals, households and social groups. Different social groups can prioritize different environmental issues (Brocklesby and Hinshelwood, 2001). In rural areas, poor people are particularly concerned with their access to and the quality of natural resources, especially water, cro p and grazing land, forest products and biomass for fuel. For the urban poor, water, energy, sanitation and waste removal are key concerns. Poor women regard safe and physically close access to potable water, sanitation facilities and abundant energy supplies as crucial aspects of well-being, reflecting their primary role in managing the household. ?Environmental management, as used in this paper, extends well beyond the activities of public environmental institutions. In relation to poverty, environmental management is concerned fundamentally with sustaining the long-term capacity of the environment to provide the goods and services upon which people and economies depend. This means improving environmental conditions and ensuring equitable access to environmental assets – in particular land and biological resources, and safe and affordable water supply and sanitation – in order to expand poor people’s livelihood opportunities, protect their health and capacity to work, and reduce their vulnerability to environment-related risks. This broader conception of poverty and environment, and of environmental management, is essential to understanding the linkages between them and to identifying appropriate policy and institutional options for improving these linkages. There have been some impressive gains since the 1972 United Nations Conference on the Human Environment – the first global conference devoted to environment and development issues. There has been a proliferation of environmental policies and institutions at national and sub-national levels, and environmental issues are firmly placed on the agendas of governments, civil society and the private sector. Major global environmental agreements have been forged and global environmental organizations established. Environmental sustainability has become a core concern of bilateral and multilateral development cooperation, and billions of dollars have been spent on environment-related programmes and projects. Tangible progress also has been achieved ‘on the ground’, although the picture is usually mixed. For example, in the 1990s some 900 million people gained access to improved water sources. However, this was merely enough to keep pace with population growth, and about 1. 2 billion people are still without access to improved water sources, with rural populations particularly under-served (Devarajan et al, 2002). Another example is the productivity of soil used for cereal production, which increased on average in developing countries from 1979-81 to 1998-2000. However, it fell in some 25 countries, most of them in Africa, with land degradation being one factor behind the decline (World Bank, 2002c). Despite these gains, pressure on the environment continues to mount worldwide, posing major challenges to the prospects for poverty reduction and human development in developing countries, in particular the least developed countries.

Music Therapy And Its Effect On The Quality Of A Person s...

Music therapy has the ability to change lives in a very powerful way, and science has shown us that it can have a positive effect on the quality of a person’s life. Music therapy is a healthcare practice that utilizes clinical and evidence-based music therapy methods to address stress, wellness, pain, physical rehabilitation, and to improve a person’s quality of life. It can have a significantly positive effect on people—physically and emotionally. While the earliest known mention of music being used as a therapy appeared in 1789 in a Columbian Magazine unsigned article, Music Physically Considered†, the idea really started to evolve when the profession formally began after World War I and World War II. Musicians of all types went to Veterans hospitals to play for large numbers of veterans that were suffering from both emotional and physical trauma from the wars. The patients beneficial physical and emotional responses to the music led the doctors and nurs es to hire a staff of in-house musicians by the hospitals to support the recovery of the troops. Music therapy has long been used to help people emotionally as well as physically. The results have been powerful and are seen to be positive—yet still people are sceptical about the practice of this therapy. How can music possibly affect the human body physically? Why does it change our emotions? It almost sounds a bit new age; more like an â€Å"alternative† medicine than something that has been scientifically proven and is moreShow MoreRelatedMusic Therapy On Quality Of Life1549 Words   |  7 Pagesreview, I posed two research questions. Firstly, does Music Therapy in general improve perceived quality of life? And secondly, does evidence exist that rhythm related interventions are successful in improving health and perceived quality of life? 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Many researches have shown that music can have an affect on a variety of different conditions, including; ones’ education, social connection, and mental healing. Educationally, music can prepare your brain for superior achievements. In effect, this can cause a better understanding of mathematics and language skills or abilities. Socially, musicRead MoreMusic : The Power Of Music1741 Words   |  7 Pages Uses of Music The Power of Music Ariel Balda South Piedmont Community College Abstract Music is something has been around for a really long time. Music can be seen as a form in which artists express themselves but it could also benefit people that listen to it. Music has many uses for people. Musical therapy is a type of therapy that has been developed and researched well. 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In other words, music affects the way in which we think , behave and feel. Music tends to have a positive effect on the transfer of learning. For example , learning to play an instrument enhances the ability to rememberRead MoreThe Effect Of Music Therapy On Cognition1592 Words   |  7 Pages The Effect of Music Therapy on Cognition in Children with Retts Syndrome Brandon Akers Arkansas State University Author Note This research is proposed to better understand the impact of music therapy on cognition in children with Retts Syndrome. The knowledge presented is based on my own findings from a review of the empirical and theoretical literature relevant to this topic. It is important to study the effect music therapy has on Retts Syndrome candidates in order to better teach necessaryRead MoreThe Physical Effects of Music Essay1157 Words   |  5 PagesMusic can be a big influence on the life of a person. To some people, music can tell a story. It inspires creations, and influences behaviors. Artists can use music to express themselves through. Different music styles and eras relate to different cultures and time periods. What some people are not aware of, though, is that music also influences a person physically. Listening to and playing music can improve brain efficiency and health; therefore, children should be exposed to music at a young age