The success of the Singapore Education System Research Paper

The success of the Singapore Education System - Research Paper Example The lack of other natural resources left human resource as the only asset available for Singapore to achieve modern economy ambitions. These, therefore, left education as the only option for building both the economy and the nation through the delivery of human capital engine and in the creation of a sense of Singaporean identity. Nation building and the exploitation of the human resource was faced with a challenge of racial integration that sprouted as a result of the British colonial policies on education, language, and citizenship. In order to meet the needs, Singapore put a lot of focus in the education sector. According to the prime minister, the purpose of education at early days was to â€Å"provide a good man and a useful citizen†.This made the first phase of education which was dubbed â€Å"survival-driven† created in an attempt to expand the primary education and support the development of a literate and technically trained workforce. Schools that existed were merged into a single Singaporean education system, and a bilingual policy introduced so that children could learn their language as well as English. The expansion became so rampant that by early 1970, ’s universal primary and secondary education was attained, and a national system of public education established although the quality was not high. After the success of the first phase, the second phase of education based on shifting from the labor-intensive economy to capital and the skill-intensive economic country was formed.

Explain the main determinants of exchange rate behavior in the long Essay

Explain the main determinants of exchange rate behavior in the long run and in the short run. In the context of your analysis di - Essay Example The speculation concept in this market has made it hard for achievement of stability. Gains and losses can be made in the same breath in this market. This presents a challenge in both the macro and micro economics world. The factors that influence this behaviour in the foreign exchange market has been a topic of concern to many scholars and economists the world over. The aim of this paper is to evaluate the main determinants of exchange rate behaviour both in the short-run and long-run by illuminating a number of theories and explain why exchange rates tend to be volatile and notoriously hard to predict. To better understand the exchange rates, the paper will first discuss the foreign exchange market and then it will look at the exchange rate regimes. The The Purchasing Power Parity (PPP) and the asset market approach through the Uncovered Interest Rate Parity (UIRP) will also be analyzed here.   Overview of the Foreign Exchange Market As the name suggests, a foreign exchange marke t is a market where currencies are traded. Foreign exchange market is also known as forex market. In this market, money is traded for other money. This is the basic definition of the foreign exchange market but in broader terms, the foreign exchange market is not restricted to the exchange of currencies. ... Gains are made in the same breath as losses in this market. This is so because the price of the currency in the market is determined by forces of demand and supply (Carbaugh, 2011). The financial market like goods market obeys the laws of demand and supply; the demand for currency varies inversely with price (Williamson, 2009). If demand for a currency increases its price increases (appreciates) making it unattractive in the market. Buyers thus switch to buying products where value of currency is low leading to depreciation of the currency until equilibrium is reached. For example, in a market involving dollars and pounds whereby the dollar is the domestic currency and the pound is the foreign currency, an increase in demand for foreign currency (pound) results in depreciation of the domestic currency (dollar) while an increase in supply of foreign currency leads to appreciation of the dollar until equilibrium is reached (Sercu and Uppal, 1995). The demand and supply concept As shown in figure 1, Do represents the demand curve for pounds while So represents the supply curve. Equilibrium exchange rate is obtained at the point where demand curve intersects with supply curve (point E). At this point, the exchange rate of dollars per pound is stable hence the market is efficient (Carbaugh, 2011 p. 399). The demand curve in this case represents the desire of the Americans to purchase British goods, services and assets and by observing the law of demand; the US demand for pound varies inversely with price. If price increases, the demand for pounds decreases and if price decreases the demand for pound increases. This means that if the dollar price of pound increases, exports from

Lives of Athenian and Spartan Women

Lives of Athenian and Spartan Women Athens and Sparta were known as the famous Greek city states. The two governed their city state differently in political system, social life, economy, education, religious view, and so on. Another main difference was the womens rights and power. Athenian women were horribly treated. They were highly kept and protected at home because the belief to Athenian men was that women were highly sexual beings who could not control their sexual urges and therefore had to be restricted for their own benefit. On the other hand, Spartan women enjoyably live with their status, rights, power, and respect which the women of another Greece city states werent lucky to be delight with those freedom. Spartans realized that regardless of gender all Spartan people had an obligation to serve the militaristic end of Sparta.(Gaughan) This essay mostly focuses on how Athens and Sparta differently and similarly treated their women to the following questions: How were Athenian and Spartan women educated? How did they get married? Could they women divorce their husband? What did they do when they become a mother? How did Athenians and Spartans judge their women? How sociable were Athenian and Spartan women? Did they have right to own property? How did they receive citizenship? What are the similarities between both of them? Athens was a powerful capital and the largest Greece city state. It was a heart of economic, political, financial and culture life in Greece. Athens represented freedom, art, and democracy. Athens was given its name from Athena goddess who is the goddess of wisdom and knowledge and won the competition with the sea god  Poseidon. Furthermore, the government of Athens was limited democracy. And Athens economy mostly depended on trade. Sparta was a well known city state in Greece, and located on the banks of the River Eurotas in Laconia, in south-eastern Peloponnese. When Sparta invaded Dorians, and brought both the local and non-Dorian population under control, it appeared as a political entity around the 10th century BC. Later on, it became a strong and dominant military land-power in ancient Greece. It considered itself as the Greece protector, providing expert armies to Greece whenever needed. The political system of Spartan government was a monarchy ruled by two kings. Moreover, economic in Sparta mainly focused on agriculture rather than trade. How were Athenian and Spartan women educated? Athenian women werent expected to get education from school such as how to write and read. However, they were taught reading at home. They were also taught necessary household skills such as spinning, weaving, and sewing, cooking, cleaning and managing other domestic duties by their mothers, and even the slaves whom their families had. Furthermore, they got education about facts on mythology, religion and occasionally musical instruments. On the other hand, since the Spartans believed that if their women are educated and are able to protect themselves; Spartan women could also manage property of their husband while he was gone. As the result, most of Spartan women are literate. At the age of seven, Spartan women were both academically and physically educated. But they didnt receive any knowledge related to domestic work as Athenian women such as weaving, cooking, sewing, and others because these kinds of work were responsibilities of helots and slaves in Sparta. For academic education, they were taught to read, write, and protect themselves. They got cultural education including poetry, social and religious customs, choral recitation, dance and music. In addition, music was a main section in religious festival. Spartan women, therefore, learned to sing and perform dance. For physical education, Spartan women were trained in athlete competitions such as running, wrestling, and javelin throwing. Moreover, they were well known  with their great knowledge in not only breeding and training but also riding horseback and driving small horse-driven carts. How did they get married? Since birth, Athenian girls were highly protected and kept at home. Athenian fathers arranged and married of their young teenage daughter at early age, normally at the age of thirteen or fourteen; to men who were 30 years old and sometimes from prominent families in Athens society. The brides father celebrated a marriage ceremony call gamos, which the aim is to show that the bride was passed to the groom. Athenian bride couldnt meet her groom until the contracts had already been approved. The process of marriage was quite very long and complicated. After the marriage Athenian women were supposed to join or move to live in their husbands family though they werent considered as full member of the new family until they birthed the first child. Unlike Athenian women, Spartan women had non-ceremonial for their marriages. Commonly, they got married at the age of eighteen years old. A Spartan woman was assigned to married a man who came and abducted her at mid night from her family. After that, she shaved her head and wear mans clothes. Then she was able to meet her husband, mostly for children purpose. After marriages, husband and wife lived separately. If husband joined war for too long time, Spartan woman could find a new husband. Could they women divorce their husband? Women in Athens couldnt divorce their husband without providing any reasonable evidences to public official and agreement from their husband. Though they successfully divorced, they would lose all rights to their children. Oppositely, Spartan women could divorce their husband without losing any wealth, properties, and even rights to children. What did they do when they become a mother? Athenian women were supposed to give healthy son who would be strong soldier. Thus they werent allowed to take parts in sport, competition, and military. On the other hand, being a healthy mother producing strong and brave son to serve in Spartan armies was a primary purpose for Spartan women since Spartan was known as strong militaristic city state of Greek. Thus, Spartan women involved in  military training, did exercises, and join athletic competition to make their bodies fit, strong and healthy. How did Athenians and Spartans judge their women? Athenian women were strongly determined on their artificial beauty rather than natural beauty. They liked wearing valuable and elaborate jewelry and nice clothes for being attractive and other purposes. On the contrary, Spartan women were well known for their natural beauty. Consequently, they were forbidden to wear or use any kinds of cosmetics or makeup, especially jewelry, which was a serious avoidance for them. How sociable were Athenian and Spartan women? Athenian women had very less freedom. They had a secluded life since they were forced to stay at home most of the time. They would lose their status if they failed to do so. Since Athenian women were educated, they couldnt have carriers or hold office in society such as prostitute, market seller, flute players, dancers, nurses, and mid wives. Only freewomen of poorer classes could do trade in market places, and went outdoor much more than wealthy women. More than this, women from rich family were physically protected by their slaves or male relatives, and they had to maintain and protect their reputation by not talk closely with men. Though Athens was a democracy, Athenian women still couldnt join public activities such as voting or taking part in state operation. They could neither watch nor participate in the Olympic Games, military training, and even athletic competitions. But, they could leave the houses to join religious festival. Spartan women, on the other hand, lived freely and left the house whenever wanted. They were strongly given confidence to speak in public. They could join group discussion in public. They could involve in military and also politics. Did they have right to own property? Spartan women were allowed to own wealth and property. After married, women in Sparta could own both her husbands land and hers, but her land couldnt become her husband land. Aristotle stated that, by the fifth century B.C., Spartan women owned two-fifths of the land. Spartan women had authority to control, manage and, abandon the land they owned whenever they wished. They could legally  pass their land to sons and daughters. In addition, they could also get income earned form their land. Even thought Athenian women could own jewelry, clothes, inexpensive things, they couldnt get the kind of ownership as Sparta such as owning land, luxuries, or any things that put into contract. In short, they didnt have financial independence. How did they receive citizenship? In idea of Athenian men, women were less necessary. Thus, Athenian women werent offered Athenian citizenship. Unlike women in Athens, women in Sparta were considered as Spartiates and also citizens of Sparta thought they couldnt join public assembly. Receiving citizenship in Sparta, one had to withdraw profit from owning land to pay for government. As what mentioned above, Spartan women could own land, so they could be awarded the Spartan citizenship. What are the similarities between both of them? According to what shown above, the life of Athenian and Spartan women are different from each other. However, they still had several commons. Both of them were required to get married. And the marriages were arranged by fathers. More than this, the two were expected to give strong and healthy sons. The two had to bear their children. They couldnt join assembly. They could own property. In short, women status in Sparta and Athens are quite different from each other. As we see, while Spartan women were educated to write, read, and know about cultural knowledge, Athenian women were taught managing household duties. For marriage, Athenian women were expected to get married in early age, and the process of getting married seemed be complicated. But in Sparta, women got married unless they were eighteen years old. Moreover, Athenian women were judged on artificial beauty, but Spartan woman were judged on natural beauty. And Spartan women were very active in the public. Contrast of Spartan women, Athenian women stayed at home most of the time. Last but not least, Athenian women didnt have valuable property ownership as Spartan women. Comparing ancient Athenian women to women nowadays, there are both similarities and differences. For similarities, both of them were pressed to produce  children and take care them, looked after home, and increased their beauty and attractiveness by wearing additional jewelry and beautiful clothes. One more similarity is that marriage is an important thing for their lives. Though they are similar, they are still different from each other. In contrast to ancient Athenian women, present women can go to work and do their own careers. They are sociable; they can go wherever they want, do whatever they prefer, and talk with whomever they like. Moreover, the marriages of modern women are mostly not arranged or chosen by their parents. Another difference is that women nowadays can involve or have status in politics and government. They also have right to education, and to own property as men have. However, most of what modern women can do is the same as what ancient Spartan could do. Consequently, we can assume that modern women and ancient Spartan women share many similarities. In my own view, if I had been born in ancient Greek, I would have preferred to be a woman of Sparta.

My Dad :: Personal Narrative Profile

Personal Narrative- My Dad Oh my god, I thought this day would never come. He'll be all right, I hope? Why him, why not some one else? On the far southwest corner of the ranch the cool wind whispered through the tall cotton wood trees, forcing me to feel helpless. Time was winding down and I was to. Indescribable hot sweats came over me, my knees began to buckle. I heard my dads voice say, "I'm a goner" echo through the dust cloud that my jittery feet were creating. He was never wrong, in my opinion, but I wanted him to be so badly. I said a prayer and we said, "I love you" for the last time. The ambulance putted up the road barley cleaning it while I sat and watched my daddy slip away, in front of my eyes. Suffocating and fading fast he looked right at me and I thought I had lost my best friend forever. After many years of hard labor as a mechanic, my dad developed bone spurs in his upper spine at the age of 51. Pain was involved in his everyday life but never stopped him from taking care of his family. Although he could still maintain the ranch, he lost an asset that we loved, and that was throwing a ball here and there. After a while it took control of his life and he wasn't able to do anything. A family discussion was held, options flew here and there, finally a verdict. He would get the surgery, and be back and happy in no time. While making this decision there were things we had talked about. Such as what would we do if we lost you? In addition, is it a safe surgery? It was a touchy subject but we had to talk about it. The doctor told us he had never had a death and that it was a common operation. This made my mom and I feel a wee bit more comfortable until the day of surgery. He couldn't eat or drink certain things, no painkillers, and was even told to think about happy things. These precautions were taken to lessen the chance of a problem during surgery smaller. The next week flew by quickly and during that week my family spent every moment together like it was our last. My dad and I threw the ball, just like old times, even though it hurt him.

Tourettes, I Swear I Can’t Help It

It was televised in May of this year, although during the show we see various clips from both men's lives. At Serge's introduction to the programmer all we see Is a camera shot of a nice looking private school†¦ And then loud screams. This shocks the viewer a great deal because we do not understand what Is going on and Immediately thoughts fly through our heads. Questions Like Who's screaming? ‘, why are they screaming? And even What's going on? Join our train of thoughts, but then the RPR voice-over of Sue Johnston explains that Greg developed Trustees at the age of seven.It then skips to the Greg of the resent – aged fifteen, and he explains how he had to leave that particular private school due to the fact that his parents could not afford to keep him there as well as pay additional for the special care he required. He goes on to mention that he now attends a public school after a campaign to get his necessary assistance. I noticed that when Greg and John are tal king most of their clips are in interview format, I believe the producer chose to do it this way because the camera is focused on their faces so you can see their expressions much better and see their eyes.This makes It el the more personal for the viewer at home. The next clips of Greg are ones of him in school In a lesson and his tics go off and you'd think they would disrupt the classroom but everyone Just goes on as normal â€Å"It's Like It was the wind† as Greg says. In the home videos of Greg as a child there Is always sad music backing It which I believe is to emphasize the emotion and distress the whole family were feeling at this time. Here is where the viewer begins to sympathize with Greg and his family and I believe this was the intention of the programmer. As the interviewer talks toGregg father he explains that after Greg developed Trustees he was feeling down and even went to see his GAP about it – the doctor told him he was suffering depression over th e loss of a child, and Serge's father was getting emotional while repeating this memory then he said†¦ â€Å"And it was true, I felt like I had lost a son. â€Å". I think there are many parts of Serge's childhood (or what we see of it) that are very hard-hitting and this Is when the viewer begins to realize that the condition Is truly dreadful. At one point Greg tells about a time when he was young he Just wanted â€Å"IT† o stop and he actually was begging his parents to kill him.As the younger Greg Is being interviewed we find that he is a very articulate and eloquent child. He explains now Nils tic makes NV swear sometimes Ana nest saying something Like â€Å"l I know if I should say it†¦. ‘Shut your F***inning gob' â€Å". When he says this the last part is whispered and this emphasizes his innocence and proves that it can truly happen to anyone. What I found most interesting about Greg is that he doesn't associate the tic as being himself, to him it is a different person and he even compares himself to Googol'.A few people might be familiar with John Davison because when he first developed Trustees at the age of sixteen, a documentary was made about him called â€Å"John's Not Mad† (1988) and we see clips from this documentary in the latest one, I think we see the clips of his youth and so on to emphasis that this condition does not Just come and go, it is ALWAYS there, and it shows John's constant suffering. Also when Greg first developed Trustees (when he was seven) a documentary was made about him, and this included John at the age of thirty â€Å"The Boy Can't Help It. . As we e clips of John we see the difference between him and Greg almost immediately; John had to endure his illness through a time where it was virtually unknown so people's understanding and acceptance was minimal. We learn all about John's life and how he deals with the Trustees. He goes to support groups where he has a good friend called Chopper, who also has Trustees. We learn that John works in a community centre with children, and we wonder could this be because he missed out on his childhood because of his Trustees?He says in the interview that he feels left out and likes to work with kids and it's â€Å"nice to get a hug†. I believe this shows that sometimes John feels truly isolated from the rest of the world, and this brings the viewer to an understanding of John – and we feel more connected because of how personal this documentary is. We learn that John's family wasn't as half as understanding as Gregg which made John's teenage years all the more unbearable. In some clips from â€Å"John's Not Mad† we see a canteen full of teenagers but no sign of John, that's where the camera skips to another room where John is sitting all alone eating his food.This emphasizes his isolation as a youth. As we find out more about John's family we discover that John hardly sees them now because they're all living their own lives in other places†¦. This makes the viewer think that the family was not, and still is not, very understanding and accepting of his condition, almost as if they're ashamed of him? But he goes on to explain how he's got a sort of ‘surrogate family with a woman called Dorothy/Dotty. He goes on to mention that he eats round at their house three to four times a week.I believe this is to show the viewer a glimmer of hope, show that even the loneliest of people can still find friendship and even the Emily they always wished they had. One thing that surprised me about John's illness is that he has a tic which causes him to spit his food. I did not realize that this could happen. But there is a clip of John as a young man eating a meal with his family and he's putting food in his mouth but then spitting some of it back out again. The viewer then realizes that this is probably why he ate alone as a young man and also realizes how many aspects of a person's life Trust ees can affect.There is one particular scene which really did shock me, it was when John and Dotty were shopping and heir stood in an aisle looking at something when suddenly John smacks Dotty in the face. This part confused me at first because I didn't realize Trustees could cause this sort of behavior, and I believe that this was one of the main reasons it was actually shown – because anyone with little knowledge of Trustees will stereotype it to be someone won swears Ana can't Nell I t wanly Isn't all Tanat serious, out tens clip snows that it is physically dangerous because he genuinely can't help what he does.As we go further into the programmer we learn how John and Greg have accepted that they eave this illness and they try to live their lives as normally as possible. Greg is happy to state that his Trustees doesn't control most of his life, he can still go out and make friends and it doesn't get in the way of his drumming either. We even learn that Greg and some of hi s friends are in a band by the name of â€Å"The Brotherhood†. We get comments from his friends about Greg and his illness; one boy says that in Year Seven he didn't realize that Greg actually had Trustees, he simply thought he was being rebellious.I think this clip emphasizes how little the common knowledge about Trustees is, that people don't even realize what it is and simply think the person is doing it willingly. Another friend makes the statement â€Å"He lives with it – why can't R†. This is a major statement in the documentary because it shows how things have changed and how different ages react differently to things, for a boy of fifteen to say something like this emphasizes the maturity of people in this situation.In an interview John says that he accepts his illness and even goes as far as to say if his illness was gone then he would miss it. All he wants is one day, Just one day, where e has no tics at all. But Greg is mentioning he actually had a da y like this, he says that it was the best day of his life' and he wishes to have another like it. This makes the viewer feel compassion when we realize that although Greg has had a â€Å"free day' – he will probably never get another one in his lifetime, and the fact that John is nearing his forties makes you wonder if he will EVER get such a day.I believe the purpose of this programmer was to raise awareness and increase understanding of Trustees Syndrome, because most people see it as a very funny sort of illness because it makes people swear. In all fairness the affliction can be quite funny and light-hearted at times and I think this was the producer's aim, to get people laughing first and then it would be more of a shock to them when it actually came to the serious stuff. Also it was to let the previous viewers (the ones who watched â€Å"John's Not Mad† and â€Å"The Boy Can't Help It†) know how these people were doing.When you're watching a documentary l ike this, I believe you start to care about the particular person because the programmer is so detailed and personal you almost feel as if you really know them. I believe the target audience for this was a very wide en. Greg is my age so I think people my age would find it interesting and reasonably easy to relate to Greg, and a lot of people are interested in Trustees after Pete Bennett, a sufferer of Trustees, who won Big Brother 7. It was somewhat of a phenomenon, and this is where the real awareness first rose, but people stereotyped Trustees to be funny, quirky, something laughable.Unfortunately the true illness was never fully explained; Trustees is a neurological condition (a condition that affects the nervous system). It causes both physical and verbal tics, which are involuntary repetitive movements or sounds. Trustees is named after the French doctor, Georges Gilles De la Torture, who was the first person to describe the condition and its symptoms. Most people have no idea whatsoever how common Trustees is and it is difficult to know exactly how many people are affected by Trustees because people with the mildest form often disguise their symptoms from others.A recent estimate is that one in every 100 people is affected by the condition. T Is primarily a canon Leases, Ana Toys are affected more than girls. Most people with Trustees will begin to have physical tics at the age of about six or seven ND vocal tics at around eleven. The cause is unknown, but research suggests that the condition is caused by problems with a part of the brain known as the basal ganglia. This documentary was very effective in my eyes, because I realized the true misfortune of Trustees, and now I won't laugh when I hear about it or see it.I strongly believe the programmer will have raised a lot of awareness on the subject and hopefully increase understanding so that the sufferers of Trustees can live a little better. It definitely conveyed to the viewer that it is very seriou s, especially with some of the clips from Gregg childhood, e. . The home video in which Greg Just collapses and can't move. The viewer sympathizes with and respects both Greg for having to go through it and his parents for having to deal with such things.In my opinion the programmer was very interesting, enjoyable and it opened my eyes. It could drag on in certain parts – particularly in the personal interviews, but it was not made to be exciting and interesting, it was made to raise awareness. Watching it for the first time has more of an effect on you than watching it a second time, so it was good for me being a first time viewer. Part of it makes me want to watch the other two wows but I realize that Vive already seen the ending so it would be a bit pointless.I would definitely recommend this to others, it is important for people to know about and understand this illness. So, in conclusion I enjoyed watching this show and I'm glad to have learned so much about a subject th at was practically unknown to me. I would give it 6/10 because it was very good but I didn't enjoy the whole thing, I don't think I'd watch it again unfortunately. My personal taste didn't favor the programmer very much because it was a bit too much like a lesson so it made me feel as though watching it was mandatory and not my choice.

Blood Collection Monitor

————————————————- Abstract: Blood Collection Monitor  is helpful for accurate blood collection; it’s a compact instrument to provide smooth and gentle rocking of homogenous mixing with anti coagulant ; i. e. without clot formation of blood cells during collection of blood from a donor. BLOOD COLLECTION PROCESS IS HAPPENING IN DIFFERENT ENVIRONMENTS. THE CHALLENGE TO PHLEBOTOMIST (One who draws blood for analysis or transfusion) IS TO MAKE EACH BLOOD COLLECTION PROCESS COMFORTABLE AND SAFE WITHOUT COMPROMISING QUALITY.BLOOD COLLECTION MONITOR COMES INTO ROLE HERE; IT IS SPECIALLY DESIGNED TO MAKE STANDARDIZED HIGH QUALITY BLOOD COLLECTION WITH REDUCED WORK LOAD OF PHLEBOTOMIST. BLOOD COLLECTION MONITOR ENSURES CORRECT VOLUME OF BLOOD COLLECTION WITH CONSTANT AGITATION FOR BETTER COMPONENT YIELD. SO, THE CORRECT VOLUME OF BLOOD COLLECTION AND MIXING OF THE BLOOD AND ANTICOGULANT GENTLY AND PERIODICALLY DURING COLLECTION OF BLOOD; CAN BE DONE BY BLOOD COLLECTION MONITOR. 1. ————————————————- Introduction: BLOOD COLLECTION MONITOR is an advanced device which is aimed to collect the blood prior to collection with use of latest technology in place of earlier, insufficient, conventional methods i. e. without accurate weight by using random movement. The main concept behind this project is use of mechanically provide rocking movement to blood and proper mixing with anticoagulants. Also restrict the blood flow from donor when particular limit is reached. I. e. 350ml or 450ml. This is done by load cell and by comparing signal activate the stopping clamp is activated.As, sensing range of load cell is in mill volts; directly the signal can be given as input to the circuit because it will provide insufficient output. So, it is required to be pro perly amplified. So, the block diagram is designed taking into account this matter. Then comparing it with reference signal which is decided by many experiments. It activates the clamp and stops the rocking movement of plate when weight in blood bag is presented. It is approximate to the actual design but more function of the instrument by extra features like flow detector, flow rate measurement etc.So, the component specifications may differ from the actual one. fig 1. blood bag fig 2. blood bag on plate of bcm 2. ————————————————- Requirement of project: As we all know that blood collection monitor is very helpful for collection of accurate blood, it’s a compact instrument that provide smooth and gentle rocking movement of homogeneous mixing with anti-coagulant, so in modern lifestyle most of the doctors prefer these types of instrument for collection of blood ver y accurately. Blood collection monitor is very helpful to donate blood. hat happen in past that there’s no such types of instruments were present so it is inaccurate random process for doctors to take blood from the donor and also sometimes improper mixing with anti coagulant lead to waste the valuable donated blood that process may not helpful to accurately blood collection. With the help of this modern instrument it is very easy for doctors to take the blood from the donor, and through this instrument may also required less effort. Collection of blood accurately and safely. 3. ————————————————- Generalized block diagram AND CIRCUIT DIAGRAM:BLOCK DIAGRAME OFComparator CIRCUIT 5-PIN RELAY DC MOTOR CLAMP MOMENT (OPEN/CLOSE) Blood Collection Monitor POWER SUPPLY AC MAINS INSTRUMENTATION AMPLIFIER CIRCUIT WEIGHT MEASUREMENT UNITS/LOAD CELL DC MOTOR rocking MOMENT OF TR AY BLOOD Donor/BLOOD BAG CIRCUIT DIAGRAME OF Blood Collection Monitor 5-PIN RELAY Each block in briefly†¦Ã¢â‚¬ ¦ 1. Power supply to give DC supply to ICs and other devices. 2. Mechanical assembly to apply rocking movement of plate. 3. Load cell for blood bag weight measure. 4. Instrumentation amplifier for amplify the signal from load cell. 5. Comparator for obtaining stopping pulse to clamp. . 5-pin relay to connect supply to clamp when stop pulse is obtained. Modifications can be applied†¦ * ADC- Analog-to- Digital Converter, Microcontroller, and display of weight. * Alarm circuit to indicating stopping operations. 4. ————————————————- DETAILED DESCRIPTION OF EACH BLOCK: 5. 1. POWER SUPPLY: This is the main block in any of the electronic as well as biomedical project. Its Main function is to provide electrical excitation. 5. 2. 1. COMPONENTS USED: * IC 7812, 79 12(+12V,-12 V) * IC 7805, 7905(+5V,-5V) * IC 7815, 7915(+15V,-15V) * diode for bridge rectifier (4) capacitors of 1000 micro farads, 50 volts (2) * capacitors of 0. 1 micro farads (2*4) * center tapped transformer 18-0-18 5. 2. 2. CIRCUIT DIAGRAM: FIG 3. CIRCUIT DIAGRAM OF DC POWER SUPPLY (+/-5,+/-12,+/-15 V dc) 5. 2. 3. WORKING OF CIRCUIT: The working of this circuit is so simple . Mains supply is given to the 12-0-12 center-tapped transformer. Output of secondary winding is given to the bridge rectifier IC . Then to get peak-to-peak output voltage signal, capacitors are used. In lab-application, variable power supplies are preferred. 4. 2. ROCKING movement of plate and weight sensor:Whole assembly made such that one side of plate is joined with DC motor and U shaped bended rod which can able to push and pull plate from one side as plate is fixed with assembly from center power to DC motor lead rocking or sea show type movement which we want. It is most important part of instrument as mixing blood with anticoagulant properly. Fig 5. DC motor shaft connected to assembly. Fig 4. assembly to provide rocking movement. Sensing weight of blood bag during donating the blood it is most important task as on this basis measuring, displaying, and further stopping of blood flow mechanism works.To measure the blood weight we used load cell as a sensor. In load cell according to change in weight input output in mill volt also changes by using this basic principle weight sensing is done. Load cell has in built bridge balancing circuit with weight sensor. Fig 8. Cantilever beam connection. Fig 7. load cell. Fig 6. Internal circuit of load cell. Fig 9. Original data sheet by Rudra sensors. According to data sheet input 8-12dc volt given to cell and output in changes in millivoltags. Below is data sheet of load cell. 4. 2. 1. COMPONENTS USED: * 12 volt DC motor Wooden and iron assembly * Plate * 12 volt dc supply 4. 3. INSTRUMENTATION AMPLIFIER: This block provides sensor outp ut signal the sufficient amplification so as to drive further circuits properly and without loading. Generally 3 Op-Amp instrumentation amplifiers are employed in biomedical projects. As load cell senses in range of mill volts, we have to amplify it in of 1000 gain. Instrumentation amplifiers are actually made up of 2 parts: a buffered amplifier OP1, OP2 and a basic differential amplifier OP3. The differential amplifier part is often essential when measuring sensors.Because a sensor produces a signal between its terminals. The buffered amplifier OP1 and OP2 not only provides gain, but prevents the sensor resistance from affecting the resistors in the op amp circuit, and vice-versa! The gain can be calculated by: Where; R1=R3 and R5/R4 = R7/R6. (R5=RF). * Gain calculations: Gain (A) = (1+ (2*(R1/R2))*(RF/R4) Taking A=1000 & diving 1000 as 500*2, 1+2R1/R2=2 2R1/R2=1 2R1=R2 Taking R2=2K, R1 =1K. Now, RF/R4=500K R4=1K, RF=500K =1MOhm || 1MOhm = (1000000*1000000)/ (1000000+1000000) =500 K. 4. 3. 1. COMPONENTS USED: * IC OP07(3) Resistors of 1K (4 no’s) * Resistors of 2K (2 no’s) * Resistors of 1Mohm (2 no’s) * Power supply of 12 Vdc 4. 3. 2. CIRCUIT DIAGRAM: FIG. 10 CIRCUIT DIAGRAM OF INSTRUMENTATION AMPLIFIER 4. 3. 3. WORKING OF CIRCUIT: The instrumentation amp offers two useful functions: amplify the difference between inputs and reject the signal that’s common to the inputs. The latter is called Common Mode Rejection (CMR). OP1 and OP2 are the two input amp’s and connected in the non-inverting follower configuration. It is the solution for the high gain and high input impedance.Note: This is of high gain circuit so before soldering it on GPB, connectivity check of all the components as per circuit diagram twice on bread-board is advisable. There may chances of unpredictable o/p due to IC saturation. 4. 4. COMPERATOR: It compares the input signal with reference signal. When input exceed from reference signal it gives positive sa turation and negative saturation when less than reference signal. We are using 1 volt as a reference , as from experiment we get 1 volt output from instrument amplifier through load cell under 350ml blood beg. 4. 4. 1. Components used: 1 operational amplifier Op07 * Resistor 10k (3 no’s) * Protecting diodes (2 no’s) 4. 4. 2. CIRCUIT DIAGRAM: FIG 11. CIRCUIT DIAGRAM OF COMPERATOR BY USING IC OP07 4. 5 relay: Fig. 12 Basic relay construction A  relay  is an  electrically  operated  switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal.Here in our applications operation is must switched from rocking movement to clamp operation. (As comparator detects particular weight i n plate rocking movements stops and clamp activated. ) Fig13. Pin diagram of 5pin relay 4. 5. 1. COMPONENT USED: * 5 PIN simple relay 4. 6. Stopping clamp: IV set passing from clamp that restrict the blood flow from donor. Fig 14. Clamp for restrict the blood flow When comparator generates stopping pulse from 5 pin relay it gives supply to DC motor and on its shaft rotation thread connected with clamp is going to pull and clamp is closed. Indicate that blood collection is completed.Also disconnect supply from DC motor that leads stop rocking movement. Fig 15. In our project IV set passing through clamp. In real instrument this type mechanism done by clamp type electromagnet as shown in figure. That pulsed by controller and as magnet generate the clamp force fully attract and it restrict the further blood flow from donor. 4. 6. 1. COMPONENTS FOR CLAMP MECHANISM: 12volt dc motor Plastic clip, Thread, Rubber bend 5. ————————â€⠀Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€- Application of project: The application of blood collection monitor is very widely used in blood bank and also in hospitals.Now a day’s almost all hospital’s doctor prefer these instrument for accurate collection of blood. Through this instrument we can easily collect the blood of donor and this instrument is also helpful in mixing the blood with anticoagulant so blood does not clot and also to collect the accurate amount of blood. Also indicate flow rate from donor to bag and error in flow rate whether any obstruction in donor vein in any case. Doctors and blood bank technicians prefer this instrument for the accurate collection of blood so we can say that its main application is in medical field and in hospitals. 6. ———————————————— Limitation: Blood collection monitor is a useful instrument for do ctors and so accurate for collection of blood so we found no any limitation in blood collection monitor right now. But ours is designed for only 350ml blood collecting, as well as it has no any current weight display, flow indications. Ours angular rocking movement is slightly large and jerky. 7. ————————————————- FUTURE EXPANSIONS: * In future this instrument will be facilities with more necessary parameters like flow rate, blood temp. Detector etc. Though motor used to rotate the plate not generating much noise but it will be removed in future. * Now a day’s BCM is single unit but in future it may facilities with some storage space of bag. (that will be more useful in mobile blood bank) * In future whole assembly make by fiber that’s making instrument lighter than present model. 8. —————————â₠¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€- CONCLUSION: For Blood collection monitor we can say that it is useful instrument for collection of blood accurately for doctors and safe for donors. And that’s why it’s being more commonly used in most hospitals now a day.From my side I conclude that to design a single unit of instrument is not possible without fundamental knowledge of electronics, controlling, basic of simple principles and last but not the least patience and faith in my work and strength. I also mention that repetitive work on any circuit remove basic doughty and also working problem. My project also teaches me the technical thoughts, human relationship. 9. ————————————————- References: * Books/manual/ Catalog:- * Manual of blood collection monitor of bioastate pvt. Ltd. * Catalog of Rajas enterprise ltd. * SEARCH ENGINES:- www. google. com * OTHER SITES:- * Google images blood collection monitor. * www. biomedprogects. com * Visited blood bank/industrial estate:- * Guideline of Apollo hospital blood bank. * Rudra sensors Ahmadabad. 10. ————————————————- cost of project: Item| Description| Quantity| Total| Electronics components| ResistorsCapacitorsVoltage regulator IC, OP-07| 15156, 4| ` 150/-| Load cell| -| 1| ` 950/-| Assembly| Wooden and iron shaft mechanism| -| ` 240/-| Others supporting| GPB, core, connecting leads| 4| ` 20/-| | | | TOTAL AMOUNT: ` 1,360/-| — Thank you —