| Papers [1-15] of 100 :: [Page 1 of 7] | | Go to page : 1 2 3 4 5 6 7 —> | Search results on "MEMBRANE TRANSPORT": |
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Membrane and Membrane Transport, 2001.
Lab report on membranes and how solutions pass through them.
1,395 words (approx. 5.6 pages), 3 sources, $ 46.95
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Abstract
Lab report on membranes, what they are, how they are composed and how solutions pass through them. The author discusses the methods used, the results and conclusions.
From the Paper
"In this lab, our purpose was to find out what can pass through a selectively permeable membrane, called diffusion, in a model cell. Part of this question was to find out what happened when things, such as water, did pass through the membrane. Later, we found out what happens when things pass through membranes, such as those of red blood cells. Our question was whether or not the substances in the tubes were clear enough to read through. To find the answers to these questions, we used the Laboratory Manual, a Handout, the skj journal, and science magazine. We used these sources to help us do the lab, and to guarantee we got the right answers to our questions from doing the lab. In our first experiment, our hypothesis was that there would be no change in the size of the model cell because the solutions are isotonic. Alternately, our hypothesis was that the cell would change sizes due to the difference in concentration of the solutions. In the second experiment, we hypothesized that only one or two of the tubes would become clear enough for us read through. Our alternate hypothesis for this experiment was that all of the tubes would become clear enough to read through. From our results, we can conclude that our alternate hypothesis was mostly correct for part A; our original hypothesis was supported by the data in the second part of the lab."
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Iontophoresis of LiHCl through a Cellophane Membrane, 2005.
This paper discusses passive and iontophoretic drug delivery of LiHCl through a cellophane membrane.
3,150 words (approx. 12.6 pages), 7 sources, MLA, $ 111.95
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Abstract
This paper offers a discussion section for dissertation on the iontophoresis of LiHCl through a cellophane membrane. In this article, the writer offers an analysis of experiment results. The paper includes a critique of the experiment performed. The writer also discusses possible future directions for study.
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Neurotransmitter Transporters, 2004.
An analysis of neurotransmitter transporters and related diseases.
3,923 words (approx. 15.7 pages), 27 sources, MLA, $ 106.95
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Abstract
This paper identifies two kinds of neurotransmitter transporters: Vesicular transporters that package transmitters into synaptic vesicles; and plasma membrane transporters that remove transmitters that have been released and then recycle them. The paper focuses on the present research status of both vesicular and membrane transporters. Special attention is paid to their anatomical and cellular localization, pharmacological properties and involvement in the physiology of the normal and pathological neural system.
Outline
Abstract
Introduction
Transporters in Vesicle Cycle
Vesicular Transporters(VNTs)
Plasma Membrane Transporters
Related Diseases
Summary
From the Paper
"Neuron is a highly specific cell for its important function, which served as intercellular communication. Nerve cells communicate with each other and with target cells by transmitting electrical signals and by releasing neurotransmitter. At a chemical synapse that releases neurotransmitter, the presynaptic and postsynaptic cells are separated by the synaptic cleft, then neurotransmitter will naturally be the agent to contact both sides. The information neurotransmitter past on depends on the nature and strength of specific neurotransmitter and different target receptors at the postsynaptic cell. This complex procedure is vital to an organism; actually, they not only affect basic functions such as the coordination of muscles and the endocrine system, but also cognitive functions such as learning and memory. Additionally, almost all neural system diseases are highly concerned with neurotransmitter, so as to transporters. The study of transporter in anatomical and cellular localization, pharmacological properties, and involvement in the physiology of the normal/pathological neural system is necessarily to be part of neural disease research."
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Extracorporeal Membrane Oxygenation, 1995.
Examines the means, effectiveness and problems of artificial blood gas exchange for respiratory or cardiac patients.
1,350 words (approx. 5.4 pages), 6 sources, $ 47.95
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From the Paper
"Extracorporeal Membrane Oxygenation
Extracorporeal membrane oxygenation (ECMO) involves artificial blood gas exchange. It is primarily administered to patients suffering from severe respiratory or cardiac failure. These cardiopulmonary bypass techniques may be used both during surgery and outside the operating room. Although the introduction of neonatal ECMO once spawned considerable controversy, the methods have become well established. In fact, with portable equipment and percutaneous techniques, ECMO can even be administered during emergency resuscitation subsequent to cardiac arrest. In the future, it is very probably that ECMO will become a regular component of critical care.
The development of extracorporeal membrane oxygenation can be traced back to the early heart-lung machines. During the ..."
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Transportation and the Environment, 2002.
A discussion of the potential effects of the government's preference for private transportation over public transportation on the environment.
3,150 words (approx. 12.6 pages), 8 sources, $ 115.95
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Abstract
This paper looks at how the government's preference for private transportation over public transportation bodes ill for the environment. The author believes that there is conclusive proof that a bias towards private transportation promotes urban sprawl. This, of course, promotes extensive deterioration of the environment and greatly increases the size of man's ecological footprint. The silver lining of this ugly cloud, though, is that efficient public transport systems can still be developed to curb this growing problem. Sprawl, ironically, may provide the necessary impetus to reduce the appeal of private transportation and eventually make public transport systems more efficient and competitive. This is but only one reason that a government's preference for private transportation over public transportation bodes ill for the environment. This paper will provide clear arguments to further support this assertion.
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Transportation Mobility and Older Adults, 2006.
This paper is a research proposal to study the effects of transportation on mobility of older adults.
1,640 words (approx. 6.6 pages), 7 sources, APA, $ 53.95
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Abstract
This paper proposes to study where older adults tend to travel and how often public transportation is used, as well as where these individuals would like to travel, but are unable to due to lack of transportation. The author points out that research has shown that the availability of public transportation varies based on location and that, in rural and suburb areas, there often is no form of transportation other than private automobiles. The paper reports that the sample for this study will be volunteer men and women, 65 years and older, who ride public transportation in a non-urban region of central Minnesota. The paper states that the self-report questionnaire was developed by the author because other research has not included investigation of where the aged would have liked to travel if they had transportation. The paper includes a cover letter and the questionnaire.
Table of Contents:
Introduction
Non-drivers
Use of Public Transportation by Older Adults
Gender and Ethnicity
Methodology
Sample
Procedure
Instrument
Analysis
Tentative Time Line
Appendix: Consent Form
Appendix: Survey
From the Paper
"Troubles accessing public transportation vary from person to person. One in five women Latinas reported transportation problems, while one and ten African American women reported problems accessing public transportation.However, only 5% of white women reported problems with accessing public transportation. However, the number of women drivers is expected to increase in the next 30 years. Only 67% of women had driver licenses in 1997 but by 2012 it is predicted that 90% of women will have driver licenses."
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Transportation, Safety and Accidents, 2002.
This paper discusses the technological advances and newly developed safety systems for all methods of transportation.
3,290 words (approx. 13.2 pages), 10 sources, MLA, $ 94.95
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Abstract
This paper provides an extensive background and analysis of transportation methods and their supporting systems and services on a national, regional and local basis. The author stresses the importance of safety and that as technology continues to advance, new safety systems and standards will continue to develop.
Table of Contents
Introduction
History of Transportation
Transportation Today
Safety Devices
Department of Transportation
Travel on Land
Travel by Ship
Air Travel
Railroad Travel
Keeping Transportation Safe
Bibliography and Endnotes
From the Paper
"Today, there is a vast array of transportation choices, commercial airliners, trains, automobiles, subways, buses, motorcycles, motor homes, ships, boats, or bicycles. Depending on the amount of time and money we want to spend, there are many choices involved in travel.
But with these increased means of travel come change in global markets, environmental challenges, transnational security threats and a communication and information revolution. Every mode of transportation has individual risks, safety issues, laws, and problems. And each mode of transportation has agencies that deal with them."
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A Proposal for Student Transportation at Rutgers University, 2001.
This paper presents a proposal for improved student transportation at Rutgers University, using it as an example to present the necessity and advantage of low-cost student transportation.
1,550 words (approx. 6.2 pages), 5 sources, $ 50.95
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Abstract
This paper presents a proposal for improved student transportation at Rutgers University, using it as an example to present the necessity and advantage of low cost student transportation.
From the paper:
"Rutgers University is one of the largest state universities in the country. It boasts an enrollment of over 48, 000 students collectively over the expanse of its three campuses. (Rutgers University Website) There are many benefits of being a student at such an expansive and diverse institution. There are also many detriments as well. It would be an understatement of almost unsurpassed irony to note that many Rutgers students own cars. Rutgers, being a state institution, has many individuals within driving distance to its campus. All of the campuses are for the most part, urban institutions. Thus parking is an enormous problem for both students and faculty."
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Bio-membranes, 2004.
Details the basic structure unit of bio-membranes.
1,350 words (approx. 5.4 pages), 3 sources, APA, $ 47.95
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Abstract
This paper details the structure of the lipid bi-layer, fluid-mosaic model of the bio membrane. The paper discusses the terms hypotonic, isotonic, and hypertonic, and gives examples of their workings. The paper also explains what is meant by the osmosis, diffusion, exocytosis, endocytosis and active and passive transport.
From the Paper
"The basic structural unit of virtually all bio-membranes is the phospholipid bi-layer. It is a sheet-like structure with two layers of phospholipid molecules with their polar heads facing the surrounding water and their fatty acyl chains forming a continuous hydrophobic interior. Each of the two phospholipid layers in the bi-layer is called a leaflet. The hydrophobic interaction between the fatty acyl chains of glycolipid and phospholipid molecules is the driving force keeping the leaflets..."
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Greater Toronto Transportation, 2007.
This paper discusses the issues relating to transportation in the Greater Toronto area.
2,849 words (approx. 11.4 pages), 10 sources, MLA, $ 84.95
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Abstract
This paper examines the issues of transportation and mobility in the Greater Toronto Area (GTA). The issues that the paper covers include the following: the debate about transportation and sustainability, car dependence, the growth and urban sprawl in the GTA and its impacts and implications on transportation practices. The writer examines the key transport and mobility issues in the GTA and the solutions that are proposed for solving them, particularly in the context of achieving a more sustainable growth of the city.
Outline:
Introduction
Sustainable Transportation
The Issues of Mobility
Urban Growth, Urban Sprawl and Transportation
Conclusion
From the Paper
"Analysis of the above problems reveals that their major cause is the extensive use of private automobiles. They are the major consumers of fossil fuels whose consumption produces CO2 and other dangerous gases and whose sources are rapidly melting away. Recent research shows that cities that provide the best terms for the automobile transportation are the ones with the highest CO2 emissions. They are involved in the accidents that result in the injury, loss of life and property damage. Also, car dependence is responsible for traffic congestion of which we see more and more within the GTA Alarming is the fact that the use of private automobiles in increasing, a fact that will be addressed further below."
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Air Transport and Tourism, 2005.
A look at air transport and tourism in several major countries across the world.
32,484 words (approx. 129.9 pages), 115 sources, APA, $ 249.95
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Abstract
This is a broad and far-reaching study on the relationship between tourism and air transport. In examining this relationship the paper looks at whether the deregulation of air transport has influenced the tourist destination countries in South Europe and to what extent and examines the impacts of deregulation on capacity and fares. The study also attempts to determine whether deregulation has has caused growth in the market and attempts to determine the integral relationship between the transport and the overall tourist experience. Finally, this paper studies the impacts of the tourism transport at the destination areas. Included with the paper is an extensive list of tables and figures.
Background
Statement of the Problem
Purpose of the Study
Importance of the Study
Scope of the Study
Objectives of the Study
Limitations of the Study
Rationale for the Study
Overview of the Study
The Parallel Growth of Air Transport and Tourism
Structural differences
The Impact on Tourism
Effect of Split Charter/Scheduled Flights
Cyprus
UK
Turkey
Malta
Spain
Greece
Methodology
Research Design and Approach
Population and Sample
Collection and Tabulation of Data
Data Analysis Procedure
Reliability and Validity of the Data
Analysis of the Data
Summary, Recommendations and Conclusion
From the Paper
"The current study uses both quantitative and qualitative methodological processes to analyze the issue and works to determine what deregulation of the air transport industry has done to the tourism industry. This is very important to those that work for air transport companies, and equally important to those that work in tourism. The conclusions that are found here will provide answers to potential problems that have been seen throughout the tourism industry for some time with a focus on the five specific countries that have been selected by the researcher for this particular purpose."
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Canadian National Transportation, 2005.
This paper discusses the legislative shifts in Canada's national transportation policies from the late 1960s onward.
2,250 words (approx. 9.0 pages), 1 source, $ 89.95
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Abstract
The paper examines some of the major changes in Canada with regard to its national transportation policies since the late 1960s. As a starting point, the writer uses the National Transportation Act (1967) to mark the beginning of a new era in transportation policy in Canada. This discussion illustrates that the move towards privatization of Canada's transportation network has been part of a broad legislative pattern in Canada intended to reduce operational costs, improve efficiency and insure safety among the transportation networks of the Canadian nation.
From the Paper
"Without question, national transportation networks in Canada have been crucial to the development of the nation since at least the beginning of the Industrial Revolution. Physically, Canada is the second largest nation in the world, coming in only behind the Russian Federation. Given a nation of that size, with metropolitan regions literally stretched across the width of North America, it is no wonder that national transportation policy should play such a primary role in Canadian national policy. The purpose of this essay is to examine some of the major changes that have occurred in Canada with regard to its national transportation policies since the late 1960s."
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Transportation Problems of Older Adults, 2007.
This paper discuses current barriers and possible solutions to public transportation for older adults in the US.
2,200 words (approx. 8.8 pages), 16 sources, APA, $ 68.95
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Abstract
This paper explains that, with the aging of the baby boom generation, the number of people needing to travel will put more pressure on transportation services. The author points out that declining health and finances can lead to a cessation or limitation in driving. The paper relates that the cessation of driving may lead to social isolation, which is linked strongly to premature death; however, having access to public transportation can lead to a higher levels of satisfaction with quality of life. The author underscores that most aging individuals do not use public transportation because of accessibility, unreliable arrival times, difficulties with learning to use public transportation, fear of being attacked and problems with lighting and steps. The paper highlights the availability of government funding to expand and improve public transportation for the handicapped and aged, but urges that more is needed.
From the Paper
"On the other hand, there are approximately seven million adults over the age of 65 that do not drive, with women making up the majority of non-drivers. Women tend to stop driving more than men of the same age. According to Bailey (2004), more than 50% of individuals 65 and older, who do not drive stay home because they lack transportation options. Non-drivers only average about 1.5 trips per day, while drivers tend to make 4 trips in one day. Furthermore, older non-drivers average 15% fewer trips to the doctor, 59% fewer shopping trips, and 65% fewer social trips."
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The Transportation Industry, 2004.
This paper discusses the many areas and agencies involved in the management of assets within the transportation industry.
3,920 words (approx. 15.7 pages), 9 sources, MLA, $ 106.95
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Abstract
The paper presents information about a sophisticated system for managing transportation, using advanced telemetric equipment inside vehicles, advanced navigational units, and on-board computers, which allow a low-cost transition of information, such as speed, oil temperature, fuel levels, and location. The author points out that the government has taken many steps to improve the situation in the transportation industry because there is a great dependence by the Americans on the safety, efficiency, and security of their transportation systems involving roads, rails, boats, and aerial methods. The paper states that the government is looking at its collaborations with the private transportation providers and the consultants to promote and conduct research at all levels.
From the Paper
"One of the techniques now being regularly talked about and used in the transportation industry is called GIS. This is useful for three separate needs of the industry ? infrastructure management, logistics and fleet management and mass transit management. The utility is for route planning and analysis, vehicle dispatch and emergency response, automatic vehicle location and tracking, transit scheduling and routing, rail system management, accident reporting and analysis, demographic analysis and route restructuring, transportation planning and modeling. The technique increases profitability in the industry through improved fleet management and logistics, infrastructure, mass transit and in the railways. In the case of fleet management, it is becoming more difficult as the organizations are now restructuring their distribution channels and removing the earlier inefficient practices. The transporter now has to adapt to the capabilities of just in time management and increase capacities so that the excess inventories can be stored. This has built up a requirement of better decision making in terms of accuracy and speed. It is more important than ever to know the location of the vehicles, their pick up schedules and delivery schedules at all times. This helps in the better usage of the available assets and a resultant savings in terms of costs. This is where GIS helps the transportation managers, but this does not essentially help in the management of his assets itself. One can say it helps him to utilize his assets more effectively."
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Integrated Public Transport Network, 2005.
An exploration on the problem of an integrated transport system in the Republic of South Africa.
6,900 words (approx. 27.6 pages), 20 sources, MLA, $ 135.95
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Abstract
This paper explores the problem and recommends strategies for the development of an integrated, inter modal public transport network for Gauteng Province, Republic of South Africa. It discusses why the problems associated with public transport planning and development in South Africa are especially challenging since the federal constitution assigns responsibility for public transport to systems focusing on the national level. The author formulates a plan for the development of an integrated public transport network.
From the Paper
"Transport planners confront major challenges in the planning and development of transport systems to the expectations and objectives of multiple stakeholder ..."
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