Implementing Alternative Sources of Energy

Implementing Alternative Sources of Energy Chapter 1 Introduction 1.0 Introduction Hotels constitute a key element of the organized chain of activity in the travel and tourism industry, and occupy a crucial place in concerns over environmental protection related to tourism and travel. The hotel industry, because of the nature of its functions, characteristics, and services, consumes substantial quantities of energy, water, and non-durable products. It has been estimated that most environmental impacts created by the hotel industry can be attributed to site planning and facility management; excessive consumption of local and imported non-durable goods, energy, and water; and emissions into the air, water, and soil (APAT 2002; Mensah 2004; Trung and Kumar 2005). 1.1 Problem Statement Integration of renewable energy sources into hotel operations is perceived as the most promising form of crisis mitigation. There are two types of energy: renewable which is infinite and non-renewable which will run out in the future. Alternative energy includes wood or biomass, wind energy, solar energy, fusion and hydropower. Non-renewable energy includes fossil fuels, coal, geothermal power and nuclear fission. Even if with many promising alternative energy sources, hoteliers remember that conservation is the key to efficient energy use, no matter what the source of the energy may be. Energy consumption in hotels is among the highest in the non-residential building sector in absolute values. Available specific information on the energy characteristics, thermal performance, energy losses, electric loads, and comfort conditions play significant role for the sustainable development of hotels systems. During the past years, there has been rising interest, there has been increasing int erest, in the use of the concept of energy. The use of renewable sources in energy production with the need to promote sustainable tourism, provide energy-based amenities for tourists, and ensure environmental protection, and it focuses on solar power, wind power, the power of running water and biomass, the power of biofuel for motor vehicles, and biothermal energy. We are in an alarming situation in Mauritius whereby there is an increase in the arrival of tourist. The hotels sector has expand a lot with new hotels constructed. Moreover, due to that increase of tourist in hotel meaning that there is indirectly and directly an increase in the level of energy consumption. The increase in the energy consumed is having an impact upon the environment, hence hoteliers are now trying to find a solution to prevent environmental degradation. There is a need in using alternative source of energy in order to reduce their consumption and also to reduce their cost. Aims Objective of Study The aim is to analyse the alternative source of energy use in hotels and how it can be implemented with the following objectives: To analyse to which extent hotels are aware of alternative energy Assessing the alternative source of energy of hotels To assess how far the hotels are ready to implement alternative source of energy Evaluate the barriers in implementing alternative energy in hotel CHAPTER 2 LITERATURE REVIEW 2.0 Introduction In light of global climate change, issues of energy consumption in the international tourism industry have been receiving increased attention. In recent years, the tourism literature has increasingly recognized energy as an important issue. In particular, G à ¶ ssling et al (2005, p. 418) state: ‘ the use of fossil fuels and related emissions of greenhouse gases is, from a global point of view, the most pressing environmental problem related to tourism. The hotel sector has also been recognized as a key contributor of greenhouse gas emissions ( Warnken et al , 2004 ; Becken, 2005 ; Scott et al , 2007 ), research such as that conducted by Becken (2005) suggests that this has not typically been a major environmental concern for   tourism stakeholders. Moreover, a major concern among the hoteliers are to adapt new strategies in implementing alternative sources of energy which will help in reducing their consumption of the actual energy which is relatively high and costly. As su ch, Becken (2005) argues that energy has not been a major environmental concern for tourism stakeholders. 2.1 Consumption of energy by the Hotel Sector Energy has long been considered a component of environmental sustainability in tourism. For example, the environmental sustainability principle of the International Ecotourism Standard specifies that ecotourism products should minimize energy consumption, maximize energy efficiency, and implement procedures to train staff and provide relevant information to guests   ( Green Globe, 2004 ). Hotels are among the most energy-intensive compo ­nents of the tourism industry, representing essential tourist services and an important source of employment. As such In tourisms early stage, most of the energy was used to provide lighting inside and around buildings, and to provide heating. Energy was also used in storing and preserving foodstuffs, preparing and serving food, and for sanitary purposes (for bathroom facilities, laundries). Recently, the consumption of energy used in air-conditioning or for the needs of various auxiliary facilities (swimming pools, saunas, lounges) has grown con siderably. About one third of all energy consumed is used in guest rooms (30 percent of total consumption of electricity, 36 per cent of total energy used in heating, ventilating and air-conditioning, and 34 per cent of total water consumption). In this situation Energy is a key precondition to tourism processes. At a final-product level, electrical energy and heat power are the forms of energy most commonly used, while mechanical energy and solar and wind power are used substantially less. 2.2 Energy sources All other forms of energy belonging to the second group are nonrenewable: fossil fuel (coal, crude oil and natural gas), nuclear power, the Earths internal heat energy released on its surface (hot springs), the Earths internal heat energy that is renewed in its interior through the radioactive decay of uranium and thorium, and light atoms that are needed for fusion to take place. These nonrenewable forms are finite energy sources, and their duration depends upon the intensity with which they are exploited. Coal is the primary energy source of fossil fuels, and its combustion releases great quantities of carbon dioxide into the atmosphere. From an ecological viewpoint, this represents the pivotal problem of using fossil fuels, because CO2 and other emissions impact on the environment and pollute the atmosphere through greenhouse gasses. At the same time, the era of cheap fossil fuel has come to an end, and newly awoken concerns about fossil fuel security have further made dependency on them less desirable. In addition, the mean annual temperatures are predicted to rise in the order of 1.20-7.07à ¢Ã¢â‚¬â€Ã‚ ¦C between 2070 and 2099, further exacerbating the problem (Mimura et al. 2007). The prevalence of fossil-fuel generated power and the (still) marginal utilisation of renewable energy resources translate into significant emissions of particulates, nitrogen and sulphur oxides and other air pollutants, both locally and globally. Secondary pollution in the form of acid rain causes the acidification of lakes and soils, with negative effects on flora and fauna, human health and man-made structures and products. The decades of cheap fossil fuel did little to help promote the technology and subsequently it was not until the late 1990s that renewable International Journal of Sustainable Energy 95 energy gained new momen tum in the energy agendas of local governments and international organisations alike. The four principal strategies for reducing greenhouse gas emissions in accommodations include: reducing overall energy use, improving energy effi ciency, increasing the use of alternative energy sources and offsetting emissions through the development of renewable energy projects or the planting of trees to act as carbon sinks ( Ãâ€" n à ¼ t and Soner, 2006 ; Becken and Hay, 2007 ; Dalton et al , 2007 ; Scott et al , 2007 ;UNWTO, 2007a ). 2.3 Alternative sources of energy 2.3.1 A solar thermal collector A solar thermal collector is a solar collector considered to bring together heat by absorbing sunlight. The word is useful to solar hot water panels, but can also be used to denote more difficult installations like solar parabolic, solar trough and solar towers or easier installations such as solar air heat. The more multifaceted collectors are normally used in solar power plants where solar heat is used to generate electricity by heating water to fabricate steam which drives a turbine connected to an electrical generator. The simpler collectors are typically used for supplemental room heating in residential and commercial buildings. A collector is a tool for converting the energy in solar radiation into a more functional or storable form. The energy in sunlight is in the form of electromagnetic radiation from the infrared (long) to the ultraviolet (short) wavelengths. The solar power striking the Earths surface depends on weather conditions, as well as location and direction of the surface, but in general it averages about 1,000 watts per square meter under lucid skies with the surface straight perpendicular to the suns rays. 2.3.1.1 About Parabolic Trough Solar Trough solar systems use parabolic rounded trough shaped reflectors center the suns power onto a receiver pipe running at the focus of the reflector. Because of their parabolic shape, troughs can focus the sun at 30-60 times its usual intensity on the receiver pipe. The intense energy heats a heat transfer fluid (HTF), typically oil, flowing through the pipe. This fluid is then used to produce steam which powers a turbine that drives an electric generator. The collectors are united on and east-west axis and the trough is rotated to follow the sun to make best use of the suns energy input to the receiver tube.   Heat transfer fluid (usually oil) runs through the tube to absorb the concentrated sunlight. This rises the temperature of the fluid to some 400 °C. The heat transfer fluid is then used to heat steam in a normal turbine generator. 2.3.2 Biogas Biogas can bring a spotless, effortlessly controlled source of alternative energy from organic waste materials for a small labour input, replacing firewoood or fossil fuels (which are becoming more expensive as supply falls behind demand). During the conversion process pathogen levels are diminished and plant nutrients made more willingly available, so better crops can be grown while accessible resources are preserved. Since small scale units can be moderately simple to build and function biogas should be used openly if possible (for cooking, heating, lighting and absorption refrigeration), since both electricity generation and density of gas (for storage or use in vehicles)use large amounts of energy for a small output of functional energy. This idea is suited to distributed systems where waste is treated close to the source, and mud is also reused locally,to reduce transport and primary capital cost compared to a centralised system. As the distributed system will need a sustain network, biogas contributes to the triple bottom line; benefiting the environment, reducing costs and contributing to the social organization. This kind of biogas consists mainly methane and carbon dioxide. Other types of gas generated by use of biomass are wood gas, which is formed by gasification of wood or biomass. This type of gas consists mainly of nitrogen, hydrogen, and carbon monoxide, with little amounts of methane. Biogas may be used as a low-cost fuel in the hotel industry for any heating function, such as cooking. It may also be used in present waste management amenities where it can be used to run any type of heat engine, to produce either mechanical or electrical power. Biogas can be compacted, like natural gas, and used to power motor vehicles and in the UK for example is estimated to have the potential to replace around 17% of vehicle fuel.   Biogas is a renewable fuel, so it qualifies for renewable energy subsidies in a few parts of the world. 2.3.3 Biomass Biomass, a renewable energy source, is organic material from living, or freshly living organisms such as wood, waste, hydrogen gas, and alcohol fuels. The biomass- energy- materials technology (Pinatti, 1999)—better known by its BEM acronym—uses acid pre-hydrolysis in a vacuum reactor in order to separate municipal solid wastes into two fractions. Biomass is commonly plant matter grown to generate electricity or generate heat. In this way, organic biomass can be integrated, as plants can also engender electricity while still alive. The most conservative way in which biomass is used however, still relies on direct incineration. However, it is possible to use biogas tapped from existing dumps and resulting in nil fuel costs, and either select or compatibilize technologies for upgrading the use of future municipal solid wastes, also with negative fuel costs, or ‘‘opportunity cost of waste function Vollebergh (1997), based on the amount of garbage that will not disposed in dumps. Forest organic residues for example (such as dead trees, branches and tree stumps), yard clippings, wood chips and rubbish are often used for. Biomass also includes plant or animal matter used for production of chemicals. Biomass may include recyclable wastes that can be use to burn as fuel. However, it excludes such organic materials as fossil fuels, which have been altered by geological processes into substances like petroleum.. 2.3.4 Flat plate collectors Flat plate collectors, developed by Hottel and Whillier in the 1950s, are the most common type known still now. They consist of (1) a dark flat-plate absorber of solar power, (2) a transparent cover that allows solar energy to pass through but reduces heat losses, (3) a heat-transport fluid (air, antifreeze or water) to remove heat from the absorber, and (4) a heat insulating backing. It contain of a slight absorber sheet (of thermally stable polymers, aluminum, steel or copper, to which a black or selective coating is applied) often backed by a grid or coil of fluid tubing placed in an insulated casing with a glass or polycarbonate cover. Most air heat fabricates and some water heat manufacturers have a completely swamped absorber consisting of two sheets of metal which the fluid passes through. The heat exchange part is greater than they may be slightly more efficient than usual absorbers. 2.3.5 Hydro Using water force as a source of energy is not new method. Some countries, such as Canada, are dependent upon on hydro power. Clearly, the availability is restricted to specific region. And to make competent use of hydro power, the scale must be enough. While the contribution of hydro is important, it is not expected to belong to the main flow in terms of aggressive growth of green energy on a global basis (Halldo ´rsson and Stenzel, 2001). 2.3.5 Geothermal Earth heat source on the 9000 degrees Farenheit inner earth hotness and steadily reduces in temperature closer to the surfaces, but the temperature close to the surface vary greatly. Rainwater that sips in deeper parts of the earth gets hot and is known as geothermal source. In several parts of the world this water finds its means back to the surface via cracks and faults, such as geysers (i.e. in Iceland) and boiling springs. As with solar energy, the matter is how to tap that virtually unlimited spring of green energy. In most cases the trick is to bore to find and get access to the geothermal basis. The hot water can then be used both straight and in geothermal power plants, which consists of three varieties. Steam can directly be used to produce electricity with a dry steam generator. Water among 300-700 degrees Farenheit can be used in a Flash Power Plant, where hot water is flashed into vapor, Water with a warmth as low as 220 degrees Farenheit can be used in a Binary Power Pla nt, where the hot water in some way produces steam from a fluid with a lower boiling peak using warmth exchangers. The used water is fed back into the basis for reheating. It is renewable in a sense, as the obtainable heat capacity has its limits. Currently, the universal capacity of geothermal power plants is over 9000MW. The energy cost of easy access geothermal energy power plants is similar to wind energy. An MIT study showed that it is possible to increase the capability in the US alone to at least 100,000 MW, requiring a speculation of up to US$1 billion. It is analogous to drilling for oil; the more you want, the more hard (expensive) it is to find the sources. Clearly, geothermal energy can become a major provider to the worlds energy needs on the long term. Geothermal power plants can regulate the output to the required requests, which is a important advantage and makes them very suitable for base load power (the amount of energy that is always desired). 2.3.6 Tidal Energy If there is one thing we can safely forecast and be sure of on this planet, it is the coming and disappearing of the tide. While the energy capacity is dependable, converting it into electrical power is not simple. One option is to construct a tidal barrage (contrast to hydro lakes) which are not only complex but also cause radical changes to the currents in the estuary that could have enormous effects on the ecosystem. Nonetheless, tidal barrages have a enormous potential, worthwhile further examination. Another option is to use offshore turbines that work analogous to wind parks, but underwater and using the tides as a basis, This technology brings no environmental issues, but as it is in an early stage, the cost is not yet aggressive (like wind energy in the premature days). 2.4 Energy Audit To determine energy performance of a building, both constructional elements and energy production and consumption systems need to be evaluated. Depending on the purpose of the building aforementioned elements and systems have different contribution and a various methodology is needed for precise energy performance calculation. Energy audit is an analysis of thermal performance and energy systems of building with the purpose to determent its energy efficiency or non-efficiency. Energy audit also helps getting new conclusions and suggestions on how to increase the energy efficiency. Main goal of energy audit is to access and process collected data, and to get as much accurate present energy performance of building, concerning construction characteristics in terms of thermal protection, quality and efficiency of heating, ventilation and cooling systems, quality and efficiency of lighting and household   appliances and building management. .   For example Large-scale tidal energy pro duction has been planned for Passamaquoddy Bay straddling New Brunswick and Maine, and the Bay of Fundy as at least the 1930s. Even the late American President John F. Kennedy, a winner of a large-scale barragestyle tidal power plan at ‘Quoddy, envisioned a â€Å"fossil-fuel-free energy future† on the Atlantic seaboard. Newer tidal current technologies offer much more energy generation possibility, and much less environmental trouble, than the impoundment schemes superior in earlier plans. 2.5 Barriers to implement alternative sources of energy The need for using alternate sources for energy has been progressively rising as the environment is getting worse due to human utilization. For those people who wish to make dissimilarity in their lifestyles, or want to help find better energy sources for everybody, there are government allocations that will provide the financial support to do rising energy costs are finally starting to force global leaders to research alternatives and provide the funding to make changes. 2.5.1 Solar water heating systems (SWHS) Problems such as malfunctioning pumps, leakage from tanks etc. were experienced and maintenance and repairing facilities may not be to the required level. However, individual users in direct contact with manufacturing companies were generally satisfied. But this was true for only new systems. An encouraging response came from the potential users; 90% in the cities were willing to buy if it saved them energy. But current high prices of the system were a deterrent to them. Although solar water heating systems are simple in construction, responses indicated that minor faults could lead to serious problems, especially if not detected early. It was found that many systems did not perform as expected due to reasons such as low level of awareness, technical problems and lack of maintenance. It was also revealed that due to unsatisfactory performance, credibility of SWHS was low and there was an urgent need to restore the confidence of both existing and potential users. SWHS are still not pe rceived as environmentally attractive and potentially economical means of providing hot water to targeted users. Therefore, serious efforts and corrective measures both from industry and government are needed for a sustained growth of SWHS market. The key stakeholders (users, manufacturers and experts) indicated that the economic / financial barriers are the most important barriers for SWHS industry. The SWHS were considered high priced compared to conventional water heating systems and electricity made it further unattractive for the â€Å"low bill† electricity consumers. A lack of credit facilities was another obstacle in this category. Awareness / information barriers were ranked second with stakeholder indicating these as most important. Presence of SWHS industry can hardly be noticed by consumers. Industry on the other hand offers very limited choices due to a lack of significant market. Technical barriers were ranked third with stakeholders indicating these as most important. However, some experts and users were of the opinion that technical barrier would have been ranked first if the SWHS were used more widely. SWHS manufacturers on the other hand argued that the lack of knowledge about the system design and operation, and a lack of maintenance were the root cause of the problem. The quality of the product has improved in the last three years. 2.5.2 Recommended actions to remove SWHS barriers The Following measures were recommended by the stakeholders to remove the barriers. Information and awareness Development of effective public awareness and promotion programs that are prepared based on market surveys and studies. It was proposed that the programs should concentrate on use of media especially TV and newspapers. The concept, the benefits and the required operating conditions for SWHS should be made clear to end-users through these media strategies. Promotion of SWHS could also be done through participation in various exhibitions held in syndicates, hotels, clubs etc. The demonstration systems can be set-up in places like city councils, clubs, big factories, conference halls, and stadiums etc. where the impact can be far reaching. Printed materials (such as leaflets, brochures) containing information on systems, selection criteria, maintenance requirements, and information about suppliers and their after sales services needs to be made available to the consumers. ther modes for awareness building could include seminars and presentation to targetted users in schools, universities and clubs, and awareness among students by setting up of laboratories in these places. Economic and financial Financial support from the governmental, private sectors and donor agencies to the SWHS needs to be put in place. Availability of credit facilities with low interest rates and reduction in SWHS prices to make it competitive with other alternatives is equally important. Encouraging local manufacture of SWHS by reducing taxes and customs duties on solar water heating system components. Financial and technical support to research and development activities for product improvement should also be provided Technical Current manufacturing standards and specifications should be revised to include quality control and assurance components and installation requirements. SWHS and their spare parts could be made available in shops and markets.   This should be accompanied with availability of maintenance centres within easy reach. A program or mechanism to address the problem of the systems already installed in the new cities needs to be prepared and implemented. Relevant government authorities, manufacturers and dealers of SWHS need to co-operate in this programme. The users of the system need to be made aware o f the maintenance requirements of the SWHS through the program. Formulation and enforcement of appropriate quality checks at the factory level, product quality and performance guarantee and mechanism for their enforceability , and setting up maintenance cum marketing centres for SWHS are other measures to increase their penetration. Institutional A federation, union or society, which can bring representatives of users, companies, financing sources, policy makers and researches on one platform can be very useful to co-ordinate efforts in this area. 2.5.3 PV (photo voltaic) systems for electrification There was a consensus that economic and financial barriers are the most important barriers and should be addressed first. This was followed by policy barriers, indicating need for a governmental mechanism to promote PV technology (Ahmad and Shenawy, 2006). Market barriers were considered next in importance, indicating small size of the market and limited access to international market. Private sector involvement was limited due to small size of the market. Some PV manufacturers even suggested the need for obligatory laws for rural electrification using PVs. While experts and users considered technical problems and availability of maintenance as an important barrier, PV manufacturers did not consider this as a barrier. Important barriers within these categories were as follows: Lack of information The awareness on the applications of solar PV systems is very low. High dissemination costs The target group for solar electrification lives in dispersed rural dwellings, and proportion of wealthy households is also low in these areas. Dwellings are far apart, and therefore the transaction costs for commercial dissemination, installation and after-sales services are very high. These costs are estimated to be about 30% of the total costs of PV systems. Unfavorable tariff system The tariff charged by utilities does not reflect the real cost of rural electrification. Tariffs for electricity are identical in rural and urban areas, although the cost of supplying electricity is much higher in the countryside. On the other hand, consumers with low consumption of electricity pay lower tariffs. This makes PV system uncompetitive with the grid electricity. PV system is also not able to offer the range of services that a grid can offer, making it further uncompetitive. The electricity tariffs do not include external costs (environmental costs) due to use of fossil fuels in electricity generation. If these costs are considered in tariff setting, PV systems could be competitive with traditional electricity sources. Taxes and duties As in many other developing countries, PV system is considered a luxury product and charged very high import duty. Sometimes, tax exemptions may be available for equipment imports for a public or NGO project. But this inhibits commercialization. Further, the components that are produced locally (such as charge regulators, and batteries), attract high duties to protect the market for local manufacturers. This can cause problems if technology with the local manufacturer is not reliable. Import of equipment and materials is also a problem due to foreign exchange constraints. 2.5.3.1 Actions to overcome the PV electrification barriers The solar PV systems still have opportunities and potential for contribution to the rural development programs. These include the following: Solar radiation is high in Tropical Island, making solar PV system operation quite reliable and attractive. Technical and technological experiences are available. The actions to overcome the barriers include the following; Awareness campaigns need to be launched on regular basis to bring out the potential merits of PV systems and applications. Financial schemes need to be designed to support buyers. Manufacturers, suppliers, and agents should have their representatives and centres near the consumers. Since the PV programme is in initial stage, government supported market incentives needs to be designed to encourage commercial development and deployment. PV rural electrification projects can be integrated with other development programs. Integration of various PV rural electrification projects can help sharing of experiences in barrier removal. 2.5.4 Large Biogas Plants (LBP) The barriers identified in the case of LBP are: Information and awareness barriers A lack of awareness on LBPà ¢Ã¢â€š ¬Ã… ¸s positive economic and environmental impacts Absence of governmental support for development, awareness and dissemination of the technology, necessary in the early stages of such programs. Institutional barriers Lack of co-operation and communication between the involved institutions, organisations and other stakeholders. Absence of NGOs role Economic and financial barriers Competing petroleum products and electricity are subsidized and easily available. High capital costs of LB P compared to other organic waste treatment systems. There is no economic evaluation for the positive environmental impact of the LBP. Unavailability of land within the targeted sites. Policy barriers A lack of application of environmental laws. Moreover, due to the high revenue generated by the states upon energy provided by the states electricity central, it is very difficult to implement alternative or renewable energy. 2.5.4.1 Actions to overcome the LBP barriers Since the LBP programme is in initial stages, most of the action needed relates to formulation of a proper plan and setting up implementing agencies, and ensuring co- operation between various agencies involved in the programme. The actions may include; Awareness programmes bringing out benefits of LBP as a source of clean energy and provider of environmental benefits through waste treatment. Reforming energy pricing policy to encourage and make RETs competitive with petroleum fuels and electricity. Setting up financing mechanisms to provide financing at reasonable rates of interest. Carrying out market potential study. Setting up a coordinating committee for planning and implementing the national action plan as suggested above for LBP. Strengthening the co-operation between the concerned ministries, institutions and organisations involved in the programme. Encouraging NGOs role in promoting LBP technology. 2.6 Direct and Indirect Impacts Social and environmental impacts of SWHS Energy saved by renewable energy technologies was estimated to be about 65%.   Estimated annual reduction in CO2 emissions is 190 thousand tons. Since the manufacturing is de- centralised and relatively labour intensive (at present, compared to alternatives; oil and electric heating), it

Film Sense Shot Essay

The development of formalist film theory was deeply connected with the formation of cinematograph as the autonomous art. The specific character of this theory, hence, should be understood in terms of theoretical and practical elaboration of film production instruments and thorny path of mastering various means for delivering cinematographic ideas and content to spectators. It should be noted that the basic elements of formalist film theory, such as montage, lighting, scoring, shooting etc. became generally accepted technical means in cinematograph, which were used irrespectively of theoretical approaches preached by a given director. However, it should be noted, that notwithstanding universal spread of major theoretical and technical findings of formalist theory, it has its own unique historical features, represented by the work of such notable contributors as S. Eisenstein and R. Arnheim. Generally speaking, formalist film theory may be described as the totality of views, which claim the centrality of technical and formal means of film production to maintaining its inherently artistic and cultural nature. Eisenstein, the pioneer of formalist theory, in his major works Film Form and Film Sense Shot claimed that montage is the central practice to film-making, because it covers its both technical and artistic aspects (Beyond the Shot, p. 13). The utilization of technical approaches to montage and shooting is essentially linked with general objectives of film production, as it is understood in formalist film theory, that is, creating meanings and artistic ideas through copulation/combination of images, shots and sound elements. Basic features and premises of the formalist film theory Formalist film theory is premised on the dialectical understanding of relations between form and content in film production. Technical means, including montage, shooting, lighting, sound are not neutral vis-a-vis artistic content of a given film. In contrast, their collision or sequence, help realize artistic ideas. Based on this theoretical underpinnings Eisenstein developed several approaches to montage, which should be utilized depending on specific goals director pursues. Eisenstein defines five basic approaches to montage such as metric, rhythmic, tonal, overtonal and intellectual (Eisenstein 1949 72-79). All these approaches are premised on the complexity of artistic ideas, which director delivers to spectators. The dialectical relations between shots in these types of montage are based on conflicts between volume, rhythm, scale, speed etc. Metric montage may be described as the control of time sequence of different episodes and images, irrespectively of their intellectual content. These include various formal transitions and interruptions in the visual sequence of shots. Rhythmic montage includes metric elements, but pays specific attention to the visual composition and content of shots, which is made to deliver complex meaning. One of the notable examples of this type of montage, developed by Eisenstein and practiced by his colleagues such L. Kuleshov and D. Vertov, is a famous scene from Eisenstein’s masterpiece Battleship Potemkin, often referred to as ‘Odessa Steps’. This scene portrays the massacre of protesters (including women and children) in Odessa by Imperial Cossack Forces. Metric and rhythmic approaches to montage are extensively used to portray the ugliness and brutality of Tsarist regime and its servants and the sufferings of ordinary people. To achieve this effect, Eisenstein ‘copulates’ shots of soldiers’ boots, marching down the steps with shots of baby carriage with a child in it, moving downstairs. Besides this, Eisenstein uses close images of people, who were killed and massive flight, caused by the gunfire. Temporal metric transitions, hence, are copulated with rhythmic elements, delivering emotional content (Eisenstein 1925). Tonal montage ranks the next stage in complexity of emotional appeal. It uses entire image to create certain emotional effects in spectator. Using specific lighting, sound techniques or special effects, a director creates certain aesthetic atmosphere, which communicates new artistic meanings to visual dimension of the episode. The next type of montage, which Eisenstein calls overtonal, represents combination of tonal, metric and rhythmic elements to produce complex psychological impact on the viewers. The characteristic features of each type of the montage are used in complex to capitalize on the volume, rhythm, scale and speed. And, finally, the most complex type of montage is intellectual montage, which does not only affect feelings, but imbues thinking and reflection. Objectives of formalist film theory Hence, the main objective of formalist film theory, as Eisenstein constantly repeats, is creating artistic effects and meanings, which are communicated to spectators. Eisenstein vividly showed this opportunity, provided by montage, referring to Japanese hieroglyphs, which create new meanings by adding new elements to already existing (Eisenstein, Beyond the Shot 14). Formalist theory’s basic objective may be described as creating conditions for artistic representation of reality in film production. According to Eisenstein and Arnheim, using technical means is not neutral vis-a-vis objective representation of reality. Inability to master technical means results in negative implications for films artistic content and precludes ‘intellectual’ perception of reality. Therefore, formalist film theory, seeks to overcome mere reproduction of reality, peculiar to commercial movie projects. Besides this, representatives of formalist theory hold that spectators should be influenced emotionally and intellectually in order to give them proper understanding of director’s ideas and subjective goals. This goal has its real historical reasons, because the formalist theory developed within a tradition of revolutionary propaganda films, such as Battleship Potemkin and Alexander Nevsky by S. Eisenstein. Arnheim, who is another important representative of the formalist film theory, showed that representation of reality peculiar to cinema, essentially differs from physical contours of reality. Hence, according to Arnheim, formal elements of film-making have great significance for creating emotional and intellectual effects (Arnheim 323). Arnheim gives vivid examples of unique modes of reality perception, generated by films. As he states, film images can not be reduced to physical dimensions. Neither a position of shooting, nor its objects can not be defined mathematically, because they are premised on artistic taste and understanding of reality. Moreover, as Arnheim states, film and visual realities significantly differ in depth, as films are ‘neither absolutely two-dimensional, nor three-dimensional, but something in between†(Arnheim 324) For instance, in Ruttmann’s film Berlin, the director creates interesting juxtaposition of two physical dimensions, depicting trains moving in the opposite directions (Arnheim 324). Tensions and Contradictions within Formalist Film Theory Notwithstanding positive elements, inherent in the formalist film theory, it has certain contradictions and inner tensions, which are often mentioned by the representatives of opposing film theories. For instance, Andre Bazin, one of the most prominent representatives of realist film theory, claimed that formalist understanding of form and technique of film production is manipulative and precludes genuine communication between spectators and artistic subjects (Bazin 48). Besides this, it should be noted that heavy emphasis of formalist film theory on formal and technical means prevents directors from focusing on objective cognition of reality and its representation, making it (reality) a hostage of subjective manipulation with it. However formalist film theory claims that it provides the tools for objective representation of reality, in fact, it is one of the most subjective approaches, even more subjective than auteurship film theory. According to Bazin, formalist film theory breaks world into many small separate pieces, which are then linked to produce structured, but subjective worldview (Bazin 48). Advantages of formalist film theory and its relation to other film theories Formalist film theory has its unique advantages, which are proved by the widespread utilization of its theoretical findings and innovations by film currents, which theoretically contradict its main premises. The importance of montage and other technical procedures was recognized by the majority of directors, who worked after S. Eisenstein. Today, we can not imagine any film, which does not use montage to produce certain artistic affects. Even documentary films, which represent a separate genre, essentially focus on montage. Besides this, deep connections are obvious between formalist film theory and auteur theory, which both put significant emphasis on the role of subjective artistic appeals and aims, which are necessary to maintain cinematograph as a genuine form of art. Both auteur and formalist film theories oppose neutral and quasiobjective film production, which is prone to standardization of techniques and approaches to achieve certain commercial results. In such kind of film production standard genre elements, ideological prejudices and common sense significantly erode the instance of auteurship, transforming films into faceless (without auteur) products of cinema conveyer. It should be noted, however, that formalist film theory is characterized by excessive emphasis on such elements of film production, which often have negative effect on the quality and artistic value. The parasitizing on formal elements and conscious manipulation, as it was noted, is harshly criticized by representatives of realist film theory. It seems that this critique has proper theoretical grounds. Realist film theory, represented by Bazin, calls upon to following the continuity of real images and events and finding artistic meanings in their mere existence. In this view artistic truths should be found in difficult relations between time and space, which entails montage, having subordinate function. Moreover, unlike realist film theory, formalism leaves practically no room for the freedom of interpretation and understanding, aggressively imposing already designed meanings and interpretations on spectators. Such important elements used in realist film theory as deep shot and focus, which help meet its theoretic goals, are ignored in formalist film theory. Failing to master these tools leads to losing visual integrity of reality, which is, according to Bazin, is even more important than montage (Bazin 49). Formalism in Hitchcock’s Spellbound We have already mentioned the use of formalist theory of montage in Eisenstein’s film Battleship Potemkin. However, it should be noted that crucial aspects of formalist film theory may be found in films, directed by people, who are not openly associated with this tradition. This is, for instance, the case with Hitchcock, who based his techniques of film production on Expressionist approach. Hitchcock’s film is based on psychoanalytic and surrealist subjects, which may be proved by its plot and extensive use of Dali’s designs in the Brown’s mysterious dream. One of the major characteristics of Spellbound, which links it with formalist film theory, is that it distorts normal physical perception of time and space in reality. As we remember, Arnheim’s main requirement for film production referred to its creative approach to time and space, designed to break false continuity and present artistic sequence. Hitchcock pays primarily attention to the characterization of different protagonists and objects, but not on their appearances and actions, which is so characteristic of mainstream thrillers. The characters of Constance, false Dr. Edwards, Dr. Murchison are developed in a coherent way, following strict formal structure of plot development. Besides this, Hitchcock utilizes other techniques of formalist film theory, such as fragmentary editing, psychological collision of shots, various lighting effects, and extreme angles. Moreover, Hitchcock uses different approaches to montage, elaborated by Eisenstein. Rhythmic and tonal types of montage are extensively used in scenes, designed to produce strong emotional effects on the spectators. Rhythmic montage is used in the scene depicting Ballantine/Brown/false Edwards phobia of seeing black lines on white things, when these objects are juxtaposed with protagonists’ scared look. Another example includes Constance reading false Edward’s book on the guilt complex and notices that Dr. Edward’s signature differs from that of the man who is the author of the book (real Dr. Edwards). Intellectual type of montage, developed by Eisenstein is evident in surrealist dream scene, when false Dr. Edwards looks at the wall covered with eyes. The same episode includes rhythmic juxtaposition of the close-up shots of Constance and Brown, looking at each other, as well as purely technical tool of shots’ imposition, which creates flexible and vague atmosphere of surrealist dream. Another episode including this type of montage is when Constance, while recollecting Brown’s dream, realizes that the real murderer is Dr. Murchison. In this scene, her recollection of the dream is juxtaposed with her thinking process and eventual discovery. To sum it up, we have analyzed basic characteristics of formalist film theory, its objectives, positive and negative aspects and relation to other film theories. Practical realization of formalist film theory was researched based on the examples of Eisenstein’s Battleship of Potemkin and Hitchcock’s Spellbound. Works Cited Arnheim, Rudolf. Film as Art. University of California Press,1957. Bazin, Andre. What is cinema? Vol. 1 & 2 (Hugh Gray, Trans. , Ed. ). Berkeley, University of California Press, 1967-71. Eisenstein, Sergei, Film Form: Essays in Film Theory, New York, Hartcourt. Trans. Jay Leyda, 1949. Eisenstein, Sergei. dir. Battleship Potemkin, 1925, USSR. Hitchcock, Alfred. dir. Spellbound. 1945, USA, Vanguard Films. Ð °

Transport of Solute in Solvent through Osmosis Essay

Objective: The objective is to simulate passive transport: diffusion of solutes and osmosis of water through a semipermeable membrane (dialysis tubing). The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration in the attempt to reach homeostasis in different circumstances. Introduction: The main purpose of this lab was to observe diffusion and osmosis. This is demonstrated using dialysis tubing and a combination of monosaccharaides, disaccharides, water (H20), and sodium chlorine (NaCl), also known as table salt. We then calculated the percent change of mass over a period of time. Due to kinetic energy, cells tend to bump into one another; this is the result of the process called diffusion. Diffusion is the movement of molecules from a place of higher concentration to a place of lower concentration. In this lab, diffusion causes a physical change of our cells (mass). Osmosis is a type of diffusion that involves water. Osmosis occurs when water moves through a semi-permeable membrane. The water moves from a place of higher water concentration to a place of lower water concentration. Water potential measures free energy of water in any solution. A solution is a liquid mixture of two or more components. This mixture consists of a minor component (the solute) which is c onsistently distributed within a major component (the solvent). Water potential consists of 2 parts: osmotic potential and pressure potential. Osmotic potential pertains to the water molecules that move from a hypotonic solution to a hypertonic solution (changing the concentration gradient), while pressure potential pertains to the exertion of pressure the cell is under. The pressure is caused by the height of water exposed to the atmosphere above the artificial cell. The concentration gradient is generally the difference in concentration of a dissolved substance in a solution. This occurs between a region of high density and lower density. Water potential of distilled water in  atmospheric pressure is 0, because the osmotic and pressure potentials are 0. For example, in plant cells, osmotic potential is lowered because more of its solute is being dissolved in the cytoplasm. When placed in pure water, the cells of the plant are hypertonic. This means the plant cells have more osmo tic concentration. The water potential within the beaker is higher making it hypotonic, meaning it has a lower osmotic pressure. Therefore the water will move into the cell because water moves from hypotonic environments to hypertonic environments. This results in a swelling cell. On the contrary, if solute is added to the beaker, the water potential in the cell will be greater, resulting in a hypotonic cell. Therefore water will move out of the cell, causing it to shrivel. This is relative to this lab. However, not all solutions are like this. Solutions that have reached the state of equilibrium are isotonic. This means that both solute and solvent have the same osmotic pressure. The rates of the reaction are determined by the molecular size of the particles. If the particles or smaller, they diffuse through the semi-permeable membrane much faster than particles larger than the semi-permeable membrane. This is because the smaller particles have less of a resistance to pass through the selectively permeable membrane. If the particle is larger it is going to take a much longer time for the particle to push its way through the membrane. Materials: Dialysis tubing Scissors Small funnel Graduated cylinder Paper towel Digital scale 400mL beaker 250mL beaker 1 mL pipette Test tube Hot plate Weigh boats Pipette Pipetter Methods: 1) Obtain ten 40 centimeter strips of dialysis tubing and soaked them in water. This will moisten the dialysis tubing to a rubbery texture that is easier to maneuver and work with. Tie off one end of the tubing 2cm from the end to form a bag. Finally to open the other end of the bag, we rubbed the closed, untied end between our fingers until the edges separated. 2) Measure 25mL of the applicable solution needed for the dialysis cell. This should be done with a 25mL graduated cylinder. Measuring with a 25mL graduated cylinder insures that no errors be made. To properly measure 25mL, the graduated cylinder should be placed on a flat surface and you should be at eye level with its measurements. A full 25mL is measured at the bottom of the meniscus. Once the solution has been measured, using a small funnel, pour the solution into the dialysis bag by inserting the tip of the funnel into the open end. Finally make a note of what the cell is containing; it is very easy to get them mixed up. A source of error that is unwanted. 3) Tie the open end of the dialysis bag 2cm from the end of the bag. 4) Rinse the dialysis cell thoroughly under water to guarantee any foreign substance that may have touched the dialysis cell is rinsed off and gently blot the dialysis cell with paper towel. The dialysis cells must be completely dry so when the cell is being weighed, the digital scale will not be weighing water weight on the cell as well. Using a weigh boat, measure the cells mass. The weigh boat is used for the purpose to avoid cross contamination between the cell and scale. To insure that the cell is the only thing being weighed, place the weigh boat on the scale and press clear. This will set the scale to 0 with the weigh boat still on it. Place the cell on the weigh boat and record the total weight of the cell. Your data should be weighed in grams (g). Before submerging your cell in its beaker with solution correlated on Table #1, the dialysis cell must be weighed. This will give us an idea of what the cell begins at and in what way diffusion and osmosis affects the dialysis cell . The cell must be weighed every 30 minutes in a time period of 90 minutes. The dialysis cell should be weighed four times. 5) Submerge each prepared dialysis cell in a 400mL beaker with 150 mL’s solution correlating to Table #1. These solutions must be measured using a 100 mL graduated  cylinder. Measuring with a 100mL graduated cylinder ensures that no errors be made. To properly measure 100mL, the graduated cylinder should be placed on a flat surface and you should be at eye level with its measurements. A full 100mL is measured at the bottom of the meniscus. Because 150mL of the solution is needed, two separate measurements must be made. An entire measurement from the 100mL graduated cylinder and a half should be measured. Record the time the dialysis cell is submerged in the solution; this will insure an accurate timing at which the dialysis cell must be weighed. Label each dialysis cell and solution filled beaker. This will provide knowledge as to which solution is contained in each beaker and avoid any error from being made. 6) In 30 minute intervals for 90 minutes, the cells must be removed from each beaker and blotted try with clean paper towel to be weighed. Record each measurement every time the cell is being weighed. Do not rinse the cell under water again; this may compromise the cell and solution within the beaker. 7) At the conclusive part of the cell (last time weighing the cell) remove the cell from the solution filled beaker, and blot it dry. Proceed to using scissors to cut the cell, and pour the remaining content into a 250mL beaker. Label each beaker as to which it is containing. 8) Using 3 clean test tubes perform a chloride (Cl-) test, a glucose test and a sucrose/lactose test. Obtain 2mL of each solution from each beaker. This is done using a pipette and pipette. Place the tip of the pipette in the solution of the beaker, and the pipetter is placed at the other end of the pipette. The pippetter sucks the solution into the pipette, this is a better method then using ones mouth to suck up the solution because it is more accurate and safer. Using a hot plate and a beaker filled with water, place each finished test tube into the beaker. The water contained in the beaker must be boiling before each test tube is placed within it. Using this method, the solutions reaction will occur at a much faster rate. This applies to each test. In the (Cl-) test, 2 drops silver nitrate(AgNo3) are added to each 2mL solution that has been measured and placed into a test tube from the obtained material from the cell. This test measures for the salt content in the solution. In th e glucose test, Benedict’s test is performed using a 1:1 ratio of Benedict’s test to solution. These tests for the glucose in each solution. Finally the sucrose/lactose test uses the same content as the glucose test. Benedict’s test is performed using a 1:1 ratio  of Benedict’s test to solution. This test measures for reducing sugars. The indicator for each test is color. When there is a color change to the solution that means the test has tested positive. 9) At the end of the lab, all observations should have been recorded in your notebook. Results: The data shows (Graph #1 and Graph #2) that in each case, the dialysis bag slight increases or decreases in mass over a period of 90 minutes. The increase or decrease in mass of the dialysis cell is solely based upon the concentration gradient within the dialysis cell and its environment as to which it is placed in. In each graph, it displays which dialysis cells have increased or decreased in mass. For each cell that has increased in mass, (A1, B1, C1, D1, E1, and F1), diffusion and osmosis has occurred into the cell. As a result the cell has swollen because water has moved into the cell. Dialysis cells that have decreased in mass, (A2, B2, C2, D2, E2, and F2), have had the opposite reaction occur. Diffusion and osmosis has moved water out of the cell, causing a decrease in mass. This is due to the dialysis cell containing a hypotonic solution as its environment at which it was submerged is hypertonic. This then causes the cell to shrink in mass. Due to the different data shown in G raph #1 and Graph #2, we know that the cells and environments contained different concentration gradients because not all data is the same. This means that no dialysis cells or environments have reached equilibrium and have become isotonic. Discussion: The purpose of this lab was to observe the physical mechanisms of osmosis and diffusion. Diffusion is the movement of particles. The particles move from areas of higher concentration to an area of lower concentration. The diffusion of water moves into or out of a selectively permeable membrane, this process is called osmosis. Because of the selectively permeable membrane, nothing but water and other very small particles are able to diffuse. The dialysis tubing is similar to the function of the cell membrane. As a result the dialysis cell loses water and also gains because of osmosis due to the transport of water. This occurs when the dialysis cell is placed in an environment in which water concentration is greater than  that of the cell. The dialysis cell gains water when placed in and environment in which the concentration is lower. This concept describes how molar concentration (the number of moles in a solute per liter of solution) affects diffusion. The perception of solutions diffusing has been observed in different situations. Diffusion always moves from a high concentration to a low concentration, this is affected by molar concentration. As the molecular mass decreases, more solution is diffused. This hypothesis was made due to the knowledge of molecules diffusing down a concentration gradient. As a result, the mass of the dialysis tubes have increased, as the molarity of a solution increases, the percent of change in mass will increase as well. This affect occurred in cells (A1, B1, C1, D1, E1, F1). As the molarity of a solution decreased in other dialysis tubes, the mass of the dialysis tubes have decreased and percent change in mass has decreased as well. The amount of increase and decrease of diffusion is based on the molecule size. This occurred in cells (A2, B2, C2, D2, E2, F2). As molecular size increases, the rate of diffusion decreases. This is because it has a greater resistance going through the medium of the membrane. When molecular size de creases, then rate of diffusion increases because the molecule has less of a resistance to go through the dialysis cells semi-membrane. Acknowledgments: I would like to thank Ms. Huggins for preparing each of the solutions for the class as well as the class for preparing portions of the lab as a group effort. Without having any group effort within the class, the lab would have taken more time then what would have been given. I would also like to thank the class for contributing in providing portions of the lab data, without this data we would have not been able to properly provide right information need for the lab. References: Campbell, N.A., and Reece, J.B. 2002. Biology, 8th ed. Benjamin Cummings. Pp. 131-134 for osmosis. Molecular Cell Biology, 4th edition, Harvey Lodish, Arnold Berk, S Lawrence Zipursky, Paul Matsudaira, David Baltimore, and James Darnell. New York: W. H. Freeman; 2000. Chapter 2. Separate from Biology in the Laboratory 3e, Doris R. Helms, Carl W Helms, Robert J. Kosinski, John C. Cummings; W.H. Freeman, Dec 15, 1997 Data: Table #1: Experimental protocol to follow for tests of osmosis and diffusion. Summary: This table shows us what solution is contained within the dialysis cell or its environment contained in a beaker. This chart also tells us what test has to be conducted upon the beaker and the cell solution after the 30 minute intervals made in a period of 90 minutes. When the cell has finished diffusing after a period of 90 minutes, then these tests can be conducted. Solution in beaker Solution in cell Test solution in beaker for*†¦ Test solution in cell for*†¦ A1 H2O NaCl Cl- Cl- A2 NaCl H2O Cl- Cl- B1 H2O glucose glucose glucose B2 glucose H2O glucose glucose C1 H2O sucrose/lactose lactose lactose C2 sucrose/lactose H2O lactose lactose D1 NaCl glucose glucose Cl- D2 glucose NaCl Cl- glucose E1 NaCl sucrose/lactose lactose Cl- E2 sucrose/lactose NaCl Cl- lactose F1 glucose sucrose/lactose none none F2 sucrose/lactose glucose none none Table #3: Example showing molecular mass of particles Summary: This table is to shows the molecular mass of the particles used in the lab. This will help understand why some solutions diffuse faster than others. When a particle is bigger, it takes a longer time for it to diffuse through the membrane because it has to push itself through the membrane rather than slide through the membrane as a small particle would. Name of Solution Formula for Solution Moelcular Mass of Solution (g) Water H2O 18g/ mol Sodium Chloride NaCl 58.5g/ mol Glucose C6H12O6 180g/ mol Sucrose/ Lactose C12H22O11 684g/ mol Lactose C12H22O11 342g/ mol Table #2: Weight produced over time by different cells submerged in different solutions Summary: This table displays an increase or decrease in mass of the dialysis cell in 30 minute intervals over a period of 90 minutes. This helps us to understand the concentration gradients of the cell or environment of the cell due to its reaction. The cells that increases in size, we now know that the cell was hypertonic placed in a hypotonic solution because in order to reach equilibrium the amount of particles within the cell must be the same. Because they have not reached equilibrium this results in the movement of molecules moving from a hypotonic solution to a hypertonic solution through a selectively permeable membrane (dialysis tubing), this is called osmosis. In order for the particles to move across the membrane diffusion must occur for the movement from high osmotic concentration to lower osmotic concentration to occur. The cells that decrease in mass are hypotonic place in a hypertonic solution. We know that because osmosis and diffusion has occurred, allowing the solution and pa rticles to move out of the cell into the cells environment. Once the cell is finished being weighed in 30 minute intervals over a period of 90 minutes, a silver nitrate (AgNO3) test (test for salts present in the solution), glucose test a sucrose/ lactose test (tests for reducing sugars) are conducted. The column in green represents whether the solutions tested positive or negative for the substances. Change in Mass (g) Time (min) A1 A2 B1 B2 C1 C2 D1 D2 E1 E2 F1 F2 0 26.42 25.99 27.69 26.65 28.65 26.32 27.36 26.74 28.78 26.75 27.80 27.96 30 27.24 25.41 31.84 21.71 34.89 21.32 30.38 23.41 34.33 20.00 29.85 25.91 60 27.33 24.94 33.80 19.44 40.21 18.37 31.33 21.55 38.21 16.83 31.42 24.00 90 27.12 24.70 34.95 18.83 44.15 15.93 33.47 20.18 41.23 14.50 33.42 21.87 Test (+/-) positive + positive + positive + positive + positive + positive + positive + positive + positive + positive + positive + positive + Graph #1: Change in mass over 90 minutes in 30 minute intervals. Cells A to C. Summary: This graph visually shows us which dialysis cells gained or lost mass due to it concentration difference between the inside of the dialysis cell and its environment in which it was submerged in. Due to some cells having gained or lost more than other cells, some of the differences were much greater or lower than others. These means diffusion would have occurred faster or slower do to the solutions molecular size. When a particle is bigger, it takes a longer time for it to diffuse through the membrane because it has to push itself through the membrane rather than slide through the membrane as a small particle would. Graph #2: Change in mass over 90 minutes in 30 minute intervals. Cells D to F. Summary: This graph visually shows us which dialysis cells gained or lost mass due to it concentration difference between the inside of the dialysis cell and its environment in which it was submerged in. Due to some cells having gained or lost more than other cells, this tells us that some of the concentration differences were much greater or lower than other. These means diffusion would have occurred faster or slower do to the solutions molecular size. When a particle is bigger, it takes a longer time for it to diffuse through the membrane because it has to push itself through the membrane rather than slide through the membrane as a small particle would. Sources of Error: Forgetting to rinse our dialysis bags with water before weighing our cell will cause cross contamination to occur thus changing the composition of the solution that the cell has been submerged in as well as affecting the rate of diffusion and osmosis due to the dialysis tubing pores having already been compromised.

The Fields Of Early Childhood Education And Child...

Introduction In this analysis, evaluation, and synthesis assignment, a research topic related to the fields of early childhood education and child development will be introduced. Two scholarly journal articles were analyzed and synthesized to increase this writer’s understanding of ongoing practices of reading assessments from 1990 to the present years. It is not known if or to what extent the effectiveness of reading assessment practices has upon accurately scoring students’ overall reading performance. The two scholarly journal articles reviewed are Gable and Hendrickson (1990) titled â€Å"Curriculum-Based Measurement of Oral Reading† and Wilson (2007) titled â€Å"Wilson Reading System Instructor Manual.† Both of these articles will exhibit the author’s purpose, beliefs, viewpoints, and significant findings related to valid reading assessments within a seventeen-year timeframe. Similarities and Contrasts As stated from the 2007 Wilson Instruction Manual, the Wilson Reading System was created in 1988 for individuals with verbal expressive difficulties. Adapted from the multi-sensory approach of Dr. Samuel T. Orton and psychologist, Anna Gillingham, the Wilson Reading System aims to develop skills of decoding—both effortlessly and correctly (Wilson, 2007). To address students who are experiencing reading expression difficulties, multisensory exercises incorporate various methods of learning by enhancing the five senses to ensure better understanding. The scholarly articleShow MoreRelatedThe Early Childhood Development Of Australia1269 Words   |  6 Pagesyears the early childhood sector in Australia has undergone a number of legislative and organizational changes, which have impacted on the overall structure of service provision in Australia. Initiatives introduced by the federal government have changed the face of childcare from simple ‘child minding’ services, to full early childhood educational facilities, offering comprehensive age specific ‘high quality’ educational curriculum, which cover all ages and stages of early childhood development. HistoricallyRead MoreEarly Childhood Course At Savannah Technical College Essay1662 Words   |  7 PagesIntroduction Throughout the ECCE 1101 Introduction to Early Childhood course at Savannah Technical College there were several theorists introduced in the course that had a major impact on molding the foundation for an understanding of early childhood as a whole. Although the scope covered a broad spectrum of early childhood, majority of the main focus was on early education. The work of Lev Vygotsky greatly influenced the field of early education. This paper will include a brief summary of Vygotsky’sRead MoreThe Sociocultural Theory Essay1710 Words   |  7 Pagesin the education field, Vygotsky’s main work on the sociocultural theory is getting a lot of attention. Vygotsky believed that during the early stages of life as infants, language (nonconceptual speech) and thinking (nonverbal thought) were separate areas of development. Nonconceptual speech would be a child mumbling words without completely understanding their meaning. A child observing or playing with an object without using words would be nonverbal thought. As intellectual development continuesRead MoreAistear: High/Scope and Montessori Pedagogical Methods Essay1575 Words   |  7 Pagespaper Perspectives On The Relationship Between Education and Care In Ireland (2007), how demand for early years education in Ireland has increased in the last two decades for a multitude of reasons. Due to this growing demand for quality early years education the NCCA (National Council for Curriculum and Assessment) introduced Aistear as the early childhood curriculum framework for 0-6 years in Irish early years settings in 2009. Aistear was introduced as the curriculum framework which when practic edRead MoreThe Importance of Physical Activity Essay1545 Words   |  7 Pagessome of which are more challenging and important than others and all which contribute to a child’s development. The process of childhood development is dynamic, recognised by various fields including the influential society, inherited characteristics through genetics, and the psychological behaviour of the child. These fields all play their own roles in directly affecting the process of child development. â€Å"A child’s developmental journey is guided by three factors which include nature, nurture and theRead MoreIdentification and Description of the Influences and Discourses Surrounding the Development of Different Educational Curricula1361 Words   |  6 Pages1) Identify and describe the influences and discourses surrounding the development of each curriculum statement. †¢ Australia – the Australian Curriculum (ACARA, 2014) and EYLF (DEEWR, 2009) In 2008, Australia saw its educational framework altered and transformed by the Melbourne Declaration on Educational Goals for Young Australians (MCEETYA, 2008). With its two underpinning goals (MCEETYA, 2008): 1) â€Å"Australian schooling promotes equity and excellence† and 2) â€Å"All young Australians become successfulRead MoreTechnology And Early Childhood Classroom1583 Words   |  7 Pages Technology in an Early Childhood Classroom Marsha Kinsel ENG122: English Composition II Instructor Susan Luck June 1, 2017 Technology in An Early Childhood Classroom Even though some experts feel children’s physical health is at risk once they are introduced to technology, it is a must, that early childhood educators do just that. In a world where technology is ever changing it is imperative that children are exposed as early as two years old so that they are not left at a disadvantageRead MoreTransition: Research and Early Childhood Transitions1325 Words   |  6 Pagesconceptual tools that shed light on different aspects of early childhood transitions. The objectives are twofold: 1) to review major research perspectives on early childhood transitions and 2) to identify significant trends (and gaps) in the knowledge base of scholarly as well as professional studies. The findings of the review point to the value of widening perspectives on transitions in order to inform integrated and contextualised child-focused policy and programming. The major purpose of theRead MoreChildhood Development And The Whole Child Concept Essay1365 Words   |  6 PagesDefine early childhood development and the Whole Child concept. Early childhood development is the study of children’s growing and development from eight years old to pre-birth. Explain why it is important to understand early childhood development. It is important to understand early childhood development because it helps to understand the children better. In order for the teachers to meet the children’s needs, they have to know how and what they need to do. Learning early childhood development isRead MoreEDU10003 The World Of Maths Assessment 2 ESSAY SM1577 Words   |  7 Pagesprocedures to a focus on mathematical thinking and communication to prepare them for the world of tomorrow (Anghileri, 2006, p.2). Mathematical understanding influences all areas of life from social to private and civil. Therefore maths education is widely believed to be the single most important aspect to establishing opportunities for young people; unfortunately, many struggle with mathematics and become indifferent as they continue to encounter obstacles with regard to engagement (Anthony