Wednesday, April 30, 2008

Abstract

My thesis topic:

Biner Vector Optimation Transfer of ACC oxidase (ACO) Silencing Gene to The Plant Tissue Pisang Ambon (Musa acuminata sp. AAA) by Agrobacterium Transformation Method.

Abstract

An Agrobacterium-mediated plant transformation system was developed for the production of transgenic plant [Musa acuminata sp. AAA]. Callus were transformed using Agrobacterium tumefaciens strain GV 3850 with the binary vector pbinSRNACatN, having the kanamycin resistance gene as a selection marker. The kanamycin resistant callus were regenerated 4 to 5 weeks after co-cultivation of explants with Agrobacterium. The step selection procedure allowed the regeneration of callus which were uniformly transformed. The integration of the CaMV gene was confirmed by polymerase chain reaction (PCR). This process does incorporate steps using in vitro cell cultures or uses micropropagation, which has the important advantage that it allows regeneration of homogeneous populations of plants in a short period of time. This study shows the enormous potential for genetic manipulation of Musa species for inhibiting senescence by limiting ethylene production using RNA interference method.


By :Evah Luviah (10604101)

Friday, April 25, 2008

Frequency of Southeast Asian Ovalocytosis (SAO) and Malaria Resistance in Sentani, West Papua

Malaria has been an important natural selection in human population that maintained red blood cell variants in which protect them against malaria. Southeast Asian Ovalocytosis (SAO) is one of the red blood cell variants suggested to be a host response to protect against malaria which is common found in Southeast Asia. This erythrocyte variant is caused by a 27-bp deletion of the AE1 gene erythrocyte membrane on chromosome 17 which encode Band 3 protein. However, the mechanism of SAO to protect individual against malaria is remain unclear. In an attempt to provide evidence for the possible role of the SAO trait, the malaria susceptibilities of normal and SAO individual were compared. Observing red cell oval morphology under microscope is still the only accepted basis for diagnosis of SAO. However, errors when detecting and counting morphological SAO are inevitable. Therefore, confirming the result of the morphologically observation by more accurate method such screening SAO of the 27-bp deletion of band 3 gene by PCR method were conducted. Blood sample were collected from Sentani, West Papua. Thin and thick blood smears were stained with Giemsa and examined under binocular light microscope. DNA was isolated from blood blots on filter paper and then used for molecular analysis of the 27-bp deletion of erythrocyte band 3. Result of the survey revealed false positive (14.28%) and false negative (3,93%) while base on morphology diagnosis were compared to molecular method. SAO frequency 7,6% (79/1041) and malaria infection prevalence 16,7% (174/1041) respectively. In total sample, malaria parasite rate is higher in SAO individual (20,3% [16/79]) than in those normal individual (16,4% [158/1041). These results suggested that SAO did not confer resistance to malaria parasite invasion. It might suggest that SAO confer selective advantage at the next stage after parasite invasion, such as bad growth of malaria parasite in ovalocytes and cytoadherence interfere result in prevent cerebral malaria.

Keyword: Southeast Asian Ovalocytosis (SAO); Malaria; Band 3 Protein; Papua; Austronesian

Abstract:

By: Erik Sentosa (10203073)

The project was intended to create a home automation that able to be controlled remotely by a cell phone. The automation process requires a PC and a microcontroller. The data processed in the system transferred in serial sequences both wired and wirelessly. All softwares were done in Java and Assembly Programming Language. Microcontroller applied to help the interfacing process between sensors and motors with personal computer, while cell phone connected to receive remotely sent data. Working with hardware tends to be more troublesome than working with software.

Vibration Sensor

Abstract
This sensor was plan to detect vibration with very small displacement.
By using a laser ray that has a nanometer wavelength,
we hoped that this sensor can detect a vibration with high sensitivity.
According to wave theory that was found by Young from his experiment,
"wave can create a bright and dark pattern that cause by interference effect"
With this pattern, we will detect a changing voltage when the ray detector through that area.


Keywords: LASER, phototransistor, interference, vibration

Thursday, April 24, 2008

MEASUREMENT DEPTH OF WATER USING ECHO SOUNDER WITH MICROCONTROLLER AT89S52

Abstract
Some areas in Indonesia are very gristle of floods. A solution to solve that problem is to make a device that able to measure the depth of water on some areas. The devices that can be used is Echo Sounder. The work principle of it is using ultrasonic waves, thus the waves will be sent from transmitter and then it will bump a barrier then be reflected to the receiver. The time of starting from transmitter until bump a barrier is half of time (1/2 s). The pulse of time from the receiver will be continued to the Microcontroller AT89S52 which is an Integrated Circuit that has 4 kilo byte of FLASH PEROM. The output of the measurement will be shown to the LCD display. The quantity methods that will be used is generate the pulse of Ultrasonic signal by the timer 555 and then send to transceiver. To put a result on a LCD, C programmed will submitted to the Microcontroller by downloader. The data will collect to check off the accurate of that Echo Sounder. So that the conclusion is Echo Sounder is very benefit to measure the depth of water.

Tuesday, April 22, 2008

Magnetic Resonance Imaging

ABSTRACT

Magnetic Resonance Imaging or MRI is a painless, non-invasive procedure that is often used to diagnose symptoms that can not be fully understood through laboratory tests. MRI scan can provide the doctor with the important information about the internal organs, joins, spain and brain that are otherwise difficult to examine. MRI is a medical imaging scanner that arranges the nuclei of hydrogen atoms using a powerful magnetic scanner. A pulse of a radio wave will interact with this alligment and get some pattern that are then analyzed by a computer. Procedures of MRI are the important things that you must learn before you going through to take these procedures, including personal medical check up and emotional check up. At once MRI is complete, your trained radiologist will examine your condition from the computer image and report the result to your doctor. Because brain tissues is difficult to examine, MRI commonly used to diagnose the central nervous system including tomours, stroke, alzheimer disease and degenerative diseases.

Monday, April 21, 2008

Abstrac

Nuclear Power Plant The Best Solution to Contend Global Warming

Nowdays, world have a problem about global warming. One of causes of global warming is electrical power plant which use coal, oil, and gas as a fuel. This paper describes how nuclear power plant as electrical power plant can reduce greenhouse gas emission. In others than, this paper also describes about energy out put from nuclear power plant that is higher than all of electrical power plant.

Saturday, April 19, 2008

Abstract

Measurement Flatness and Symmetry Beam of Foton Radiation for Knowing Worthiness The Medical Linear Accelerator for Cancer Treatment

The successful of cancer therapy in radiotherapy is determined such as by uniformity of dose distribution in a radiation field. It is shown on flatness and symmetry parameters. Flatness and symmetry measurements of medical linear accelerator should be done periodically, since the problem with medical linear accelerators is their lack of stability with time. Measurement was done by using Rainbow dioda dosimeter. Flatness and symmetry result from Rainbow dosimeter is not more than 3%. That means the medical linear accelerator is acceptable for patient treatment.
Name : Aditia Zulfikar (10205041)

Friday, April 18, 2008

Thin Film Deposition Using The Opposed Sputtering System

Abstract
To make thin film we use sputtering system. A simple sputtering system consist of a vacuum chamber with a target and a subtrate. A conventional diode sputtering system has numerous limitations. Therefore, the ionization efficiencies are low and self discharge cannot be maintained below a certain pressure. In view of these limitations, magnetron sputtering system have been developed. Such arranged magnetic field can confine the electron motion to the vicinity of the cathode and thereby increase the ionization efficiency. To make a very high sputtering rate that make more ionization efficiency, the OTS method was designed. We'll see how OTS can make more efficient.

(Indra Andriana 10205034 , kelas jumat siang)

The Amphibians of Bukit Baka-Bukit Raya National Park, West-Central Kalimantan (abstract)

Bukit-Baka - Bukit Raya National Park in West-Central Kalimantan, Indonesia, is an area which has high diversity, including amphibians. Unfortunately, only a little information about amphibians has been recorded from there (Iskandar, 2004). The Amphibians of Bukit Baka-Bukit Raya National Park were investigated for a one month period in July – August 2007. Surveying was conducted in ten locations that are grouped into two areas: forest trail and streams. A number of amphibian species were directly observed during this time using visual encounter survey, line transect and hand collecting methods. In order to obtain sufficient data, we performed quantitative analysis using quadrates (30 m X width of river). Each quadrate was assessed for three constitutive nights when possible. Following that work, a total of 1105 individual from 43 species belonging to the family of Ranidae, Bufonidae, Microhylidae, Rhacophoridae, Dicroglosidae, and Megophryidae were collected. The family of Ranidae (relative abundance = 56.47%) dominated the area with Odorrana hosii being the most abundant (197 individuals). This result actually did not really describe the diversity of amphibians in Bukit-Baka - Bukit Raya National Park since the number of species captured everyday was still increasing.

References:

Iskandar, D.T. (2004). The Amphibians and Reptiles of Malinau Region. Center For International Forestry Research.

abstract

This paper focuses about difficulties that experienced by Indonesian students who was going overseas for university study and solutions that should they done to solved it. Methods that used in this paper is study literature, by searched various literature that according to this problem and some statistical data about condition of Indonesian students in overseas.

(result, interpretation , and conclusion belum.....)

riddar kurnia (10205029)

economical analysis: solar cells and bio-ethanol

Energy has an important role for the economy of the society. This paper describes how the renewable energy affects the economy. This development has been seen in German and Japan, whereas people use solar cells for electricity and in United States whereas people use their lands for corn harvesting. Every kind of renewable energy has its own characteristic. Therefore it is important to study how the efficiency of renewable energy affects the economy and how to gain its maximum efficiency. Solar cells are mostly made of silicon, and the fabrication of photovoltaic cells is not cheap, while bio-ethanol needs a massive area for harvesting. People will begin to use solar cells only if the cost is in the range of people buying power. The price of the corn will be decreasing if they are over-populated such as what has happened in United States. Energy cannot be produced; it can only be converted into another kind of energy. Photovoltaic cells are the basis of a solar cells, which made by certain semiconductor material such as silicon and gallium arsenide. Each material has its own characteristic. While bio-ethanol can be produced from corn, but in some countries corn is part from their food supplies. Therefore, the lands for harvesting corn have to be divided.

Thesis topic

water analyses by using bacteria Eschereria coli

abstract

by Arifa E -10604094

Microalgae used as material for dry woof of fish. Several species like spirulina, chlorella and scendemus contents essential amino acid at portion that fish need. In this research, microalgae in waste water sample at facultative ponds in waste water preparation will be identified to know the dominant species. After that, dry woof fish producing with drying the microalgae with simple solar dryer. Proximate analysis will be done to get nutrient content in dry woof. Then, dry woof given to fish, cyprinus caprio as an animal testing to know the effectivity comparised with commercial dry woof.

Thesis topic

water analyses by using Eshcereria coli bacteria

Task 5

by Arifa E -10604094
Plants as carbon consumer is everywhere

Plants are autotrophs in that they make their own food and thus sustain themselves without eating other organisms or even molecules. Plants, algae and photosynthetic bacteria all use light energy to drive the synthesis of organic molecules from carbon dioxide and water (Campbell et al, 2000).
Forrest became mainstay of carbon absorption because of it capability to fast absorb a big amount of CO2. Abundant sun light and water a long year is a big potent to photosynthesize.
But, forests, like other vegetation area not just absorb carbon dioxide. At the same time, this area releases a big amount of carbon dioxide with plant’s respiration. Whereas only green tissues photosynthesize, all tissues respire, and they do so 24 hours a day. A survey of several herbaceous species indicated that 30 to 60% of the daily gain in photosynthetic carbon was lost to respiration (Taiz Lincoln, 2002). Carbon deposit happens when CO2 absorption rate is higher than plant’s respiration rate. It signs with increasing biomass in that forests area.
If you look at closely in small portion of sea water, there are a hundred thousand up to million plants. This plant is called phytoplankton or microalgae. The size is micrometer. For example in kind of Dinoflagellata size is only up to 20 micrometer. Moreover, there is a size that no more than 2 micrometer.
Don’t judge the capability with their size small. Because this phytoplankton have a green leaf substance or chlorophyll. Individuals in sea like trees in function. This much of phytoplankton likes forests that can not see in plainview.
Sea have a rich biodeversitasion and able to give a big contribution to world climate change. With 73% wide in earth, sea participates to pressure carbon emission.
Carbon dioxide is the biggest contribution (75%) of the glass house gas. Everytime we use fosil fuel (oil, gasoline, petroleum gas, coil) for daily needs, car, factory, electricity or when we burn something,like our forest, we automatically release CO2 to the atmosfer
(mizuki, 2007).
Equality in the atmosphere will happen if all the carbon emission reverses with all kind of potential in earth. Ecosystems never have a static equality, but always change during decreasing animal and plants population and several groups exchange (Mc. Connaughey, 1983). And the fact now, amount of carbon release to atmosphere is too much than the capable of absorption (Ilwan hatim, 2007). Increasing volume of glass house gas includes CO2, CFC, and CH4 makes increase temperature of earth surface. Increasing of gas heat absorb able makes terrible effect called global warming.
References:
Campbell, N.A. 2000. Biology concepts and connections. USA: The Benjamin Cummings Publishing Company, Inc.
Taiz Lincoln dan Zeiger Eduardo. 2002. Plant Physiology. USA: Sinauer Associates, Inc.
Mc. Connaughey, Harlow Bayard. 1983. Pengantar Biologi laut. USA: Mosby Company.
Ilwan hatim. (2007, November). Belantara Laut Pelahap karbon. Gatra, 78-79. Jakarta: PT Era Media Informasi
Mizuki. 2007. Long Live Environmental Awareness!!. ( http :// mizuai. deviantart. com)

Calibration of film dosimeter Kodak EDR2 to irradiation dose film

Abstract:
Calibration of film dosimeter Kodak EDR2 to irradiation dose film
Radiotherapy is a way to cure cancer with irradiation. Before a therapy, a treatment planning must do optimize to give a right dose with cancer condition. But, in reality, treatment planning and practice in the field when giving a therapy sometimes not matching. So, a verification dose after giving a therapy must do.
A film dosimeter Kodak EDR2 is used as tool to give information the distribution of dose which is given on a therapy cancer. Suppose of this paper is to explain a calibration of a film dosimeter from irradiation exposure to irradiation dose film.
Scanning method is chosen because it very simple than use a densitometer. A curve of Rachael E Morcell dan Andy Rogers is used to form information optical density to film dose. With filter wedge or not, this calibration is result with error 6%.

Thursday, April 17, 2008

Task 5: Risk Factors for the Heart Disease

Extensive clinical and statistical studies have identified several factors that increase the risk of coronary heart disease and heart attack. Major risk factors are those that research has shown significantly increase the risk of heart and blood vessel (cardiovascular) disease. Other factors are associated with increased risk of cardiovascular disease, but their significance and prevalence haven't yet been precisely determined. They're called contributing risk factors. Some of them can be modified, treated or controlled, and some can’t.
These following paragraphs discuss the major risk factors we can modify, treat or control by changing your lifestyle or taking medicine.
Tobacco smoke — Smokers' risk of developing coronary heart disease is 2–4 times that of nonsmokers. Cigarette smoking is a powerful independent risk factor for sudden cardiac death in patients with coronary heart disease; smokers have about twice the risk of nonsmokers. Cigarette smoking also acts with other risk factors to greatly increase the risk for coronary heart disease. People who smoke cigars or pipes seem to have a higher risk of death from coronary heart disease (and possibly stroke) but their risk isn't as great as cigarette smokers'. Exposure to other people's smoke increases the risk of heart disease even for nonsmokers.
High blood cholesterol — As blood cholesterol rises, so does risk of coronary heart disease. When other risk factors (such as high blood pressure and tobacco smoke) are present, this risk increases even more. A person's cholesterol level is also affected by age, sex, heredity and diet.
High blood pressure — High blood pressure increases the heart's workload, causing the heart to thicken and become stiffer. It also increases your risk of stroke, heart attack, kidney failure and congestive heart failure. When high blood pressure exists with obesity, smoking, high blood cholesterol levels or diabetes, the risk of heart attack or stroke increases several times.
Physical inactivity — An inactive lifestyle is a risk factor for coronary heart disease. Regular, moderate-to-vigorous physical activity helps prevent heart and blood vessel disease. The more vigorous the activity, the greater your benefits. However, even moderate-intensity activities help if done regularly and long term. Physical activity can help control blood cholesterol, diabetes and obesity, as well as help lower blood pressure in some people.
Obesity and overweight — People who have excess body fat — especially if a lot of it is at the waist — are more likely to develop heart disease and stroke even if they have no other risk factors. Excess weight increases the heart's work. It also raises blood pressure and blood cholesterol and triglyceride levels, and lowers HDL ("good") cholesterol levels. It can also make diabetes more likely to develop. Many obese and overweight people may have difficulty losing weight. But by losing even as few as 10 pounds, you can lower your heart disease risk.
Diabetes mellitus — Diabetes seriously increases your risk of developing cardiovascular disease. Even when glucose (blood sugar) levels are under control, diabetes increases the risk of heart disease and stroke, but the risks are even greater if blood sugar is not well controlled. About three-quarters of people with diabetes die of some form of heart or blood vessel disease. If you have diabetes, it's extremely important to work with your healthcare provider to manage it and control any other risk factors you can.
These following paragraphs discuss the major risk factors that can't be controlled.
Increasing age — Over 83 percent of people who die of coronary heart disease are 65 or older. At older ages, women who have heart attacks are more likely than men are to die from them within a few weeks.
Male sex (gender) — Men have a greater risk of heart attack than women do, and they have attacks earlier in life. Even after menopause, when women's death rate from heart disease increases, it's not as great as men's.
Heredity (including Race) — Children of parents with heart disease are more likely to develop it themselves. African Americans have more severe high blood pressure than Caucasians and a higher risk of heart disease. Heart disease risk is also higher among Mexican Americans, American Indians, native Hawaiians and some Asian Americans. This is partly due to higher rates of obesity and diabetes. Most people with a strong family history of heart disease have one or more other risk factors. Just as you can't control your age, sex and race, you can't control your family history. Therefore, it's even more important to treat and control any other risk factors you have.
These following paragraphs discuss the other factors contribute to heart disease risk
Individual response to stress may be a contributing factor. Some scientists have noted a relationship between coronary heart disease risk and stress in a person's life, their health behaviors and socioeconomic status. These factors may affect established risk factors. For example, people under stress may overeat, start smoking or smoke more than they otherwise would.
Drinking too much alcohol can raise blood pressure, cause heart failure and lead to stroke. It can contribute to high triglycerides, cancer and other diseases, and produce irregular heartbeats. It contributes to obesity, alcoholism, suicide and accidents.The risk of heart disease in people who drink moderate amounts of alcohol (an average of one drink for women or two drinks for men per day) is lower than in nondrinkers. One drink is defined as 1-1/2 fluid ounces (fl oz) of 80-proof spirits (such as bourbon, Scotch, vodka, gin, etc.), 1 fl oz of 100-proof spirits, 4 fl oz of wine or 12 fl oz of beer. It's not recommended that nondrinkers start using alcohol or that drinkers increase the amount they drink.

Reference:

Anonym (2008, March 20). Risk Factors and Coronary Heart Disease. [Online article]. Retrieved March 21, 2008 from the World Wide Web: http://www.americanheart.org/presenter.jhtml

Task 5: Why are certain plants grown commercially in some countries but not in others?

The problems of poverty, hunger, and malnutrition are essentially the problems of developing countries, and that is where adequate and effective solutions must ultimately be found. Indiscriminate imposition of solutions from outside has not solved the problems and has perhaps aggravated them. If adequate solutions are to be found, it will be necessary to build the capabilities of problem-solvers in the Third World. The complex of production, conservation, processing, and utilization of food represent an interdisciplinary socio-technological problem, and therefore its solution requires a socio-technological approach.

It is essential to train for leadership people who are capable of finding solutions to the problems of food, poverty, and nutrition in relation to socio-economic needs. These needs are essentially national, but in an interdependent world where the problems of one country affect another, agents of destruction such as rats, locusts, insects, climate, and biotic factors need no passports to cross frontiers. Not only national but inter-country co-operation at regional and global levels is called for.

Food habits are also changing. While some nutritious traditional foods of the affluent in developing countries are becoming the exotic foods of developed countries and vice versa, the traditional technologies for the manufacture of many foods of the common man, developed through inherited experience, have become, or are fast becoming, obsolete and may even disappear. These technologies have provided culturally acceptable low-cost foods of high nutritive value. There is now an urgent need for upgrading such foods through the application of modern science and for fostering their integration with newly emerging technologies.

Research has become a vital component of the development process. The ability to identify complex food-related problems socially, scientifically, and technologically and to find solutions for them within a time frame requires creativity and innovative ability and special competence in management of human resources and research and development institutions. Directors of food research institutes in developing countries not only must stimulate their research scientists but also must provide viable answers to planners, policy-makers, entrepreneurs, and extension specialists in different disciplines of both social and natural sciences. Without such capabilities they cannot bridge the credibility gap between research and its users. They must make science and technology an effective means for the desired type of development.

The challenge before educators and leaders in research, especially in Third World countries, in the twenty-first century lies in providing the required multi-disciplinary and multi-dimensional socio-technological education and training with a new sense of awareness of the problem of hunger, poverty, and society. They should possess specialized knowledge in depth of at least one or two subjects. Only then will the product of such training be able to provide the required leadership in research, development, and dissemination of knowledge that will be of practical value at the grass roots level. The scientist-manager of research in a research and development institution should be able to look at many dimensions of the problem.

In most countries present institutions do not seem to be designed to provide such education and would need modification or adaptation. It may even be necessary to build new institutions. Initially, such a programme of advanced training can be built on co-operation between institutions in the relevant disciplines to achieve inter-disciplinarity, recognizing the need for developing socio-technological multidisciplinary training in the area of food science and technology.

References:

H. A. B. Parpia (1984, December 4). Hunger and Technology. [Online article]. Retrieved March 21, 2008 from the World Wide Web: http://www.unu.edu/Unupress/food/8F064e/8F064E0c.htm

Task 5: Why are certain plants grown commercially in some countries but not in others?

The problems of poverty, hunger, and malnutrition are essentially the problems of developing countries, and that is where adequate and effective solutions must ultimately be found. Indiscriminate imposition of solutions from outside has not solved the problems and has perhaps aggravated them. If adequate solutions are to be found, it will be necessary to build the capabilities of problem-solvers in the Third World. The complex of production, conservation, processing, and utilization of food represent an interdisciplinary socio-technological problem, and therefore its solution requires a socio-technological approach.

It is essential to train for leadership people who are capable of finding solutions to the problems of food, poverty, and nutrition in relation to socio-economic needs. These needs are essentially national, but in an interdependent world where the problems of one country affect another, agents of destruction such as rats, locusts, insects, climate, and biotic factors need no passports to cross frontiers. Not only national but inter-country co-operation at regional and global levels is called for.

Food habits are also changing. While some nutritious traditional foods of the affluent in developing countries are becoming the exotic foods of developed countries and vice versa, the traditional technologies for the manufacture of many foods of the common man, developed through inherited experience, have become, or are fast becoming, obsolete and may even disappear. These technologies have provided culturally acceptable low-cost foods of high nutritive value. There is now an urgent need for upgrading such foods through the application of modern science and for fostering their integration with newly emerging technologies.

Research has become a vital component of the development process. The ability to identify complex food-related problems socially, scientifically, and technologically and to find solutions for them within a time frame requires creativity and innovative ability and special competence in management of human resources and research and development institutions. Directors of food research institutes in developing countries not only must stimulate their research scientists but also must provide viable answers to planners, policy-makers, entrepreneurs, and extension specialists in different disciplines of both social and natural sciences. Without such capabilities they cannot bridge the credibility gap between research and its users. They must make science and technology an effective means for the desired type of development.

The challenge before educators and leaders in research, especially in Third World countries, in the twenty-first century lies in providing the required multi-disciplinary and multi-dimensional socio-technological education and training with a new sense of awareness of the problem of hunger, poverty, and society. They should possess specialized knowledge in depth of at least one or two subjects. Only then will the product of such training be able to provide the required leadership in research, development, and dissemination of knowledge that will be of practical value at the grass roots level. The scientist-manager of research in a research and development institution should be able to look at many dimensions of the problem.

In most countries present institutions do not seem to be designed to provide such education and would need modification or adaptation. It may even be necessary to build new institutions. Initially, such a programme of advanced training can be built on co-operation between institutions in the relevant disciplines to achieve inter-disciplinarity, recognizing the need for developing socio-technological multidisciplinary training in the area of food science and technology.

References:

H. A. B. Parpia (1984, December 4). Hunger and Technology. [Online article]. Retrieved March 21, 2008 from the World Wide Web: http://www.unu.edu/Unupress/food/8F064e/8F064E0c.htm