Electric circuits and devices prototyping Lab Report

Electric circuits and devices prototyping - Lab Report Example [3] A BJT is a current controlled device and has three terminals i.e. base, collector and emitter. The base determines the current in the emitter and the collector output. Actually BJT is a piece of silicon with three regions that have two junctions namely n and p. [3] An NPN transistor and the PNP transistor are examples of the two types of BJTs. The charge carriers in these two types of BJTs differ i.e. a PNP has electrons as its primary carrier, while NPN has holes as their primary carriers. NPN and PNP transistors practically have identical operation principles with the only difference being in biasing and in the polarity of the power supply for each type. [2] Typically, BJT has four distinct regions of operations; these are the forward active, reverse active, saturation and cutoff. Therefore, a BJT can operate in different modes depending on the junction bias. For instance, when base-emitter junction is forward biased and the base-collector junction is reversed biased, then the device is in the forward active region mode of operation. [3] The device is in reverse active region of operation when the base-collector junction is forward biased while base-emitter junction is reversed biased. The saturation mode occurs when there are forward bias potentials in both base-emitter and base-collector junctions. However, when both junctions are reverse biased then the device is in cutoff region of operation. [2] Since a BJT is three terminal device, it can be connected in three possible ways with one terminal being common for both input and output. These three configurations include common base, common collector and common emitter configurations. The common base configuration has high voltage gain with no current gain while the common emitter has gain for both current and voltage. The common emitter configuration has a current gain with no voltage gain. [3] This is a voltage-controlled device and has

The four basic health care system models Essay Example | Topics and Well Written Essays - 250 words

The four basic health care system models - Essay Example Bismarck model that compiles to the Germany, France, Netherlands and other countries’ health care system is fairly similar to the American health care system that uses insurance policies to cover people’s health as a multi-payer model. Similarly, Bismarck model is strictly government run and non-profitable funded jointly by employees and employers (Boboc & TÃŒ §itÃŒ §an, 2014). Comparatively, Beverage model is a Britain, Spain and New Zealand oriented and nationalized health care that is financed and provided by the government. Beverage model focuses on the highest quality of services by controlling the sole tax payers and what the health providers can offer. In contrast, National Insurance Model contains some components of both Bismarck and Beverage models involving private-sector providers where the beneficiaries are able to negotiate for the services rendered at the best and affordable prices (Health Disparities Conference & Wallace, 2008). However, the health care cost within the national care model is regulated by the government especially adopted in Canada and South Korea. In contrast, The Out-of-Pocket Model is applied in most developing with disorganized health care systems to provide mass health care services. Unlike other health care models, the Out-of Pocket model is adopted in rural area of South America, China and Africa. Nevertheless, this kind of health care model does not provide health care for all citizens (Boboc & TÃŒ §itÃŒ §an, 2014). The future American healthcare system should combine the elements of both health care models to cover the health care from cradle to the grave for all American individuals. Similarly, the future American health system should centrally focus on preventive services directed towards improving health and driving down costs in long term where the United State citizens’ priorities and health concerns are invested in and

A Case Study Of The Romano Family Social Work Essay

A Case Study Of The Romano Family Social Work Essay Drug abuse as well as alcohol and tobacco use is the leading cause of all preventable deaths and illnesses in the United States. The awareness by the public about the medical consequences of abusing substances has over the last 15 years been awakening as a result of the ever-increasing rate of AIDS prevalence among substance abusers. However, AIDS only represents a tip of the iceberg to the problems presented by substance abuse. Tobacco, alcohol and other drugs contribute to half a million deaths yearly. This represents a ratio of one in every four deaths. The morbidity as a result of legal and illegal drug abuse is also of equal devastation. Substance abuse has tremendous cost in terms of the loss of productivity and its demand on the heath care resources. This is as a result of viral and bacterial infections from illicit drugs injections, cardiopulmonary diseases and cancer as a result of smoking and vehicular crash and cirrhosis from alcohol among other complications. This excerpt will offer a review of information regarding the risk as well as the protective factors that aid in the development of substance abuse as well as the effectiveness of interventions meant to prevent substance use in this population. It will mainly focus on the Romano Family case study and produce relative literature that would aid in the familys treatment and prevention of further substance abuse. The Romano family case study The Romano children exhibit most of the symptoms present in substance abusing adolescents. This include: sudden change in personality in areas such as discipline, school attendance and grades; the children have also been reported to have outbreaks of tempers and flare ups, two of the children actually insulted their respective teachers; a withdrawal from necessary responsibilities; a change in the overall attitude of the adolescent; loss of interest in some of the childs favorite pursuits; a change of friends as well as being reluctant to be visited by friends; sudden aggression, nervousness and jitteriness; difficulties in being attentive; increased secretiveness; deterioration of grooming. The symptoms exhibits often differ from one individual to another as well as across different substances abused (Fisher Harrison 2011). However, the most glaring symptom in any case of substance abuse is a radical change in ones behavior. Other physical symptoms amongst substance abusers include impaired motor skills, memory impairment, slurred speech and attention impairment. Substance abuse is often classified into three classes. Substance use comprises the occasion use of drugs and alcohol without advancing to tolerance or experiencing withdrawal symptoms when one is not on drugs. Substance abuse comprises the continual use of drugs while having the knowledge that it us creating, physical, social and psychological problems (Maguin, Zucker, Fitzgerald, 1994). Once a person develops dependence, then they experience substance use over a loner period than they had anticipated or intended, they struggle with controlling the use of the substance without any success, a lot of time is spent sourcing the drug, using it and recovering from it, there are frequent episodes of detoxification and intoxication, continuous substance use even when there is knowledge of the physical, social and psychological problems of the usage, withdrawal symptoms, increased tolerance, using the substance to relieve the effect of withdrawal symptoms. For dependence to be diagnosed, t hen, at least three of these factors must be present. In the case of the Romano children, they are not. They as such mostly fall in the stage of use and some in the substance abuse stage considering the behavior changes and social damage in their respective classes, insulting teachers and fighting other students (Fisher Harrison 2011). Diagnosis and treatment of substance abuse in Romano Family The younger a child starts engaging in drug usage, the higher the risk is that he/she will develop substance abuse disorder later on into adulthood as well as suffer from serious associated health consequences. Six of the Romano children have displayed symptoms of substance abuse. To make matters worse the youngest of them is 6 years. As such, their situation needs immediate remedy. This is because of the consequences of using drugs especially at such a young age. Accidental and intentional fatalities that are associated with the usage of alcohol and drugs in the adolescent population are the leading cause of preventable deaths in the 15-24 year population bracket. Alcohol consumption in this population presents the highest risk of academic underachievement, depression, delinquency and teenage pregnancies. Drug use has also been presented as one of the contributing factors to the rise in HIV infections witnessed between 1985 and 1990. Research shows that this period also presented th e crack cocaine epidemic. The lifestyle of drug and alcohol abusing places the victim in a more precarious position of getting infected due to the reduction in inhibitions, impaired judgment and the sex-for-drugs phenomena (NIDA Notes, 2002). Predictive risk factors The risk-protective theory is the most relevant model in attempting to develop an evidence- based model to provide diagnosis and treatment options for the Romano family substance abuse problem. According to these theories, addiction to drugs develops as a result of a complex interplay between the victims, the agent (alcohol/drugs) and the individuals environment. Interactions between cognitive, social, cultural, personality attitudinal and developmental factor is usually the determinant of substance abuse in children. As an individual, one might be pre-disposed to alcohol and drug use as a matter of their genetic makeup. The family is usually a culprit in initiating the first influence to drink alcohol, smoke or use other drugs. Other factors that are related to adolescent drug use include poor school performance, low religiosity poor self image, family dysfunction, parental rejection over- or under-controlling parents and divorce. In the case study, the parents are mostly absent fro m their childrens lives because of their busy work programs. This can be considered a factor as the children may be feeling neglected. The parents absence has also helped the substance abuse habit to continue uninhibited so far (Belcher, Shinitzky, 1998). Peer influence is also a leading factor of initiating adolescent into drug abuse. Children predisposition to abuse drugs often pushes them to seek out others who have similar inclination. The Romano family children seem to adopt this model in their abuse which affects all six of them, a large number in one family by any ones standards. They have shunned peer groups in their school and only associate with one another. In this case the influencing peers are the siblings. If there substance abuse is peer based then it is likely for them to be easier to abstain from the habit as opposed to if a psychological dysfunction is present (Belcher, Shinitzky, 1998). In the community, African American and their Hispanic counterpart are likely to obtain drugs in a relatively easier and cheaper way than their white peers. This exposure is however misleading as the white adolescents have a higher reported rate of substance abuse that their African American counterparts. However, the adolescents in populations in lower privileged neighborhood were most likely to be exposed to cocaine up to five times more than those in privileged areas (Belcher, Shinitzky, 1998). The likelihood that a child will develop externalizing disorders can be traced back to preschool years. Oppositional defiant disorders, conduct disorders and attention-deficit/hyperactivity disorders observed in children during their preschool years are likely to develop as a child grows older. This conditions even if mild in the early years may advance into severe symptoms such as aggression, stealing and substance abuse. Another factor is difficult temperament in children that is characterized by negativity, moodiness, provocations and poor compliance may lead to the child being ostracized or criticized by authority figures. If this occurs in the family, it presents the model of coercive parenting that is present in families where the children adopt delinquency and substance abuse (Belcher, Shinitzky, 1998). Protective factors Protective factor comprise those characteristics present in the individual, his/her family as well as in the environment which are able to prevent individuals from adverse outcomes. The Romano family is most likely lacking in offering a nurturing home where the children and the parents are in open communication and the children have parental support that is positive. Personality traits such as self-control, self-concept, self-esteem, academic achievement and social competence also aid in raising the resiliency of the adolescent to avoid substance abuse. The challenge Model is utilizes the resiliency principles on the capacity of the individual to respond as well as to manage his/her life. It states that an individual has the capacity of achieving past the negative factors that might be in their life. As such, a chaotic family does not necessarily condemn an individual to be damaged forever. The challenge model comprises of seven principles in the facilitation of healthy and adaptive development of individuals: independence, insight relationships, humor, initiative, creativity and morality. Developing effective prevention strategies relies on considering both risk factors and protective factors (Belcher, Shinitzky, 1998). If the Romano children were also able to establish friends with positive oriented peers at school who understand the problems presented by substance abuse, then these friends are bound to improve their resilience against the habit. The parents also have a role to play, by establishing a sufficient parenting model despite their busy schedule. The parents are also described as normal by the teachers and as such are in a position to represent as protective factors to their children. On their part, the teachers and the school is committed to the welfare of the students as witnessed by their concern and follow up of the Romano case. The school also has clear rules and expectations regarding the use of drugs by students. The family should also aim at exposing their children to a supportive and safe family. This community should have a negative attitude towards the use of drugs. There are also many positive services and activities that are available to the youth which the family should enro ll the children in to occupy their free time when the parents are away. Educational and treatment approaches are also presented by such communities to assist the adolescents suffering from substance abuse (NIDA Notes, 2002). Children and adolescents present a big challenge in the diagnostic of substance abuse disorder. It is usually likely for the diagnostic evaluation to focus on a particular coexisting disorder or pre-morbid condition for example depression and/or conduct disorder. This can result to the substance abuse being missed or overlooked. This is a common challenge in adolescents as they will often fear being punished for their actions and will in most cases deny ever attempting drugs. They may also feel threatened if the person interviewing them is not sufficiently sensitized with regard to the problem aspect of substance abuse. The need for adolescents to experiment as well as push the limits also presents a point of confusion. The evaluation of substance abuse will therefore require the careful collection of information that can be quantified regarding the pre-existing conditions associated with the abuse. A rational treatment plan cannot be implemented without the performance of an accurat e diagnosis which includes an evaluation of the pre-existing problems and the degree and type of dependence/abuse (NIDA Notes, 2002). Effects of alcohol Alcohol remains the number one substance used by both the youth and adults across the world. The effects are present of this substance can be seen in the youth, within the family, the justice system and the public health sector. Alcohol consumption patterns revealed in studies on such aspects as drinking and driving and binge drinking provides predictive information that is crucial in the fight against substance abuse. Figures from 2005 indicate that the rate of alcohol use in populations aged 12 years and older stands at 9.7 percent. In a state like Arizona, one out of every four individuals indicated that had engaged in binge drinking in the month that preceded the survey. Although alcohol use by adults is of concern, its effect on underage drinkers is alarming. Alcohol is said to kill almost seven more times more underage drinker than a combination of all the other illicit drugs. In addition to this, childrens drinking is a high risk factor for perpetrating violence, falling victi m of violent situation and also being involved in violent accidents such as car crashes. Alcohol also has deleterious effect on the mental, physical and emotional development in the students. In particular it contributes to academic underachievement of students and their eventual failure as productive individuals in the society (Fisher Harrison, 2011). Underage drinking increases the risk of children to develop academic problems, make poor decisions, engage in criminal behavior, engage in risky sexual activities, perpetrate sexual and physical assaults (such as fighting in the case of the Romano children), be victims of both sexual and physical assaults, increase their likelihood of dying young as well as posse a risk to damage their brains irreparably. In addition to the negative effect of underage on the development of the youth, on road safety and on the judicial system, it also possess financial burden on the society that is extraordinary. Handling the various areas of alcohol abuse by the youth such as community treatment programs requires allot of money and resources and is as such a burden to the community (Fisher Harrison, 2011). Research indicate that in situations where a child starts drinking before they are 15 years old, then the risk of them developing alcohol-related problems in their adulthood increases fivefold. Alcohol also posses a risk of harming the brain of an adolescent: stunting brain development. The information generated by these researches provides parents as well as other adults with more reasons why they should act to protect and ensure the health and safety of the children not only in America but worldwide (Fisher Harrison, 2011). Impact of substance abuse among diverse populations By 2003, the United States reported a 9.1 percent of the population said to be suffering from substance use disorder, this is roughly 21.6 million people. 154 million of these were alcohol dependent with drug dependence affecting 44 million. A combination of alcohol and drug dependence was found in 3 million of them. The adolescents and children in the country are feeling the effects most as almost 25 percent of them live in household where the adults or parents are binge or heavy drinkers. A child in every ten children in the country is also said to live in a household that uses illicit drugs. The impact of these is that children grow up with physical and mental drawbacks. A child of an alcoholic parent is at a higher risk of developing alcohol use than any other child and also suffers other mental health problems. Boys are likely to develop externalizing behavior disorders and the girls internalizing behavior disorders both of which predispose them to substance abuse. Children with parents who are illicit drug abusers have a tendency to demonstrate irresponsible, impulsive or immature behavior, have poor school attendance, low IQ score and have behavioral problems that may also involve anxiety and depression. Ion addition, they are also likely to manifest fearfulness, negative concepts of self, loneliness and concentration impairment. All this increase their risk of engaging in substance abuse. The problems of substance abuse also bring considerable shame and associated stigma to their lives which presents a problem of identification in them (Fisher Harrison, 2011). Summary Adolescents engage in use and abuse of substances for various and complex reasons. Most of these reasons can be explained by biological theories, for example, disease model and the social learning theories which focus on environmental factors. The Romano Family case study, as would many cases involving school going children, points mainly to the risk-protective factor theory to explain the childrens substance abuse. This theory is able to distinguish between high and low risk factors leading to the development of the problem of substance abuse amongst school going children and as such help in establishing effective treatment programs for the patients.

Cluniac Monasticism Essay -- History

Cluniac Monasticism Assess the strengths and weaknesses of Cluniac monasticism between the tenth and twelfth centuries. The nature of Cluny lay in the circumstances of it’s foundation. It was endowed with a measure of independence by it’s founder, Duke William, allowing the monks to elect their own abbot, placing the abbey directly under the guardianship of St Peter and the Apostolic See. As a house dedicated to reviving strict Benedictine observance Cluny was not unique, but it was this indepencence, the succesion of talented abbots and it’s organisation set up by Abbot Berno that laid the foundations of the abbey’s later greatness. The independence granted Cluny in it’s foundation charter was esssential in the development of Cluny free from the interference of lay magnates and local bishops. It’s direct dependence on Rome was not initially of great importence; other foundations had beemn bequeathed to the apostles before. However, this was an important foundation upon which later abbots were to build. By seeking papal approval for Cluniac reforms the abbots forged a valuble direct link to the papacy, whilst gain officail public regognition and endorsement of the Cluniac regieme. In obtaining the right to accept monks from other orders in 931 Odo had confirmed the righht of the Cluniacs to reform others houses, while Cluny gained freedom from the local bishops under Abbot Odilo in 998. it was ‘the subsequent growth, under far straiter papal oversight, of Cluny’s exemption from episcopal control in spiritual matters, that did most to consolidate Cluny’s subject houses under itâ⠂¬â„¢s own central authority’ . This meant Cluny was immune to challenges to it’s authority from both without and within the church. Cluny became of particular note to sucessive Popes, with it’s reputation for reform, and the papacy continued to support the cluniacs, with Pope John XIX giving Cluny’s monks complete freedom from interference whereever they were in 1024. However, this would have been nothing without the exemplary spiritual life that was seen to exist at Cluny. The continual use of vocal prayer was popular with the laity, with many wishing to be included in the prayers of the monks. The personal qualities of the abbots were also much admired, as was the way of life practised at Cluny. The cluniac model of benedictine obervence was seen by many by the time of Abb... ... riches of success. The Cluniacs were criticised by those who favoured a more eremetic style of monasticism, and the stricter Cistercians. They were also criticised by laymen and other factions within the church. As an order, their popularity was on the wane by the twelfth century. The main strenghts of cluniac monasticism lay in its independence, it’s early spiritual energy, it’s observence of the benedictine rule and it’s sainly abbots. These provided very well for Cluny for a significant period, but over-growth of the order led to a slackening in observence of the Rule, and with the disasterous abbacy of Pons and a basic shift in religious opinion these strenghts became weaknesses that Bibliography Evans, Monastic Life at Cluny 910-1157 (Oxford University Press, 1931) Ed. Hunt, Cluniac Monasticsm in the central middle ages, (Macmillan, 1971) Lynch, The Medeval Church, (Longman, 1992) Cowdrey, The Cluniacs and the Gregorian Reform, (Oxford, 1970) Lawrence, Medeval Monasticism, (Longman, 1989) Southern, Western Society and the Church in the Middle Ages, (Pelican, 1970) Ed. Holmes, The Oxford Illustrated History of Medeval Europe, (Oxford, 2001)

What Can I Do to Make This Country a Better Place to Live in?

As A National Discipline Awardee, What Can I Do To Make This Country A Better Place To Live In? Is our country still a better place to live in? If we will to analyze the situations now, there were many incidents that took place in our country. Our country suffers from addictions, poverty, corruption, injustices, murders, prostitutions, terrorism, environmental abuses and others. Amidst the perceived problems, we are still optimistic for our country. We still hope for the best.I am very fortunate to be one of the nominees for the National Discipline Award. I am accepting the challenges to be a model for everyone, to be courageous and faithful to the teachings of God. I still believed that there is always sunshine after the rain. I want to be the bearers of truth and light to my fellow Louiseans. To make our country a better place to live in is hard for a teenager like me. But I can in my simple ways like encouraging my fellow youth to be cooperative, to be generous in sharing their ta lents, time and possessions.I will also be responsible with my duties, being a good steward of God's creation and I will inspire others to value education and encourage them to help their neighbors. I think and I truly believe that: â€Å"A journey of a thousand mile must begin with a single step. † Let's join hands to make our country a better place to live in. If everyone joins in a simple act, big wonders can happen! And more so, Philippines would be a better place to live in. Now, therefore, before we can change the world, it will begin first with our innermost being. Rachelle Marian B. Barrios

Acet Essy

In order for the Committee on Admission and Aid to get to know you better, answer the question below in the form of an essay. â€Å"Are there any significant experiences you have had, or accomplishments you have realized that have helped to define you as a person? † â€Å"l love you, Lord, my strength. † In the course of my life, I have encountered several trials and several attainments, but despite all of those experiences; one unforgettable moment struck me the most. The car accident happened in a Sunday evening back in February of 2011.There was a strong hit at the right side of the back of our car which led the car to swerve to the feet, and collide on a passing Jeep. The sad thing about the incident was that the point of impact on my side was strong. I fell unconscious after my head hit the door and I didn't know what happened next. I only felt that I was regaining consciousness when I was already in a tricycle with my dad. My vision wasn't clear and I can feel som ething painful on my face; I was troubled and nervous about what was going on and what has happened.Vie come to understand it after I woke up in a hospital lying on a bed. I was very confused why I was laid on a bed, why my mom and relatives were around me. It turned out that I was the one they were fretting over. My mom told me about the accident while she was sobbing. My mind went blank; all I can think about was, â€Å"How? Why? Is this real? † I was transferred and referred to another hospital, then another until I had my operation. The doctors read all laboratory findings and tests and they told me that I was lucky enough that my left eye didn't end up blind.I was seriously hurt physically and mentally. Knowing the bills for the operation, medicines, hospital was very grieving. My parent's had to pay thousands of pesos Just because of what happened to me. They had to drive to and from one capital to another Just for check-ups. My conscience ate me, â€Å"Aka kaki eh! Gu ng Hindi aka undergrad's, wall an sang epigraph Pasadena mega angular MO at serial MO! † I felt that I was held responsible that we were experiencing those hardships.It wasn't easy for me to bear that thought, and then another thought entered my mind, â€Å"Piano gung sill Mommy, Daddy, bat mongo chapatti at pins nag undergrad's? Slang pat nag nightcap at aka okay an okay? † I can't even stand the thought of it ever happening. I said to myself that I was a hero for saving them; it was far okay for me to be the one who's hurt and not them. I have come to realize and regret so many things in life that time; in the billions of people in the world, why me? Out of the many possible things that could have happened, why this?Why was the taxi driver so reckless and so stupid? Had I not lead a virtuous and faithful life to deserve this? Why? I felt so many regrets and blame. There were so many questions and realizations that passed through my mind. It wasn't very easy for me to bear what I have gone through. It went to the point that I questioned God why did it happen. I experienced a lot of suffering and struggle when I was still in the hospital ND recovering at home. I missed almost the 4th quarter of my 1st year high school started the 4th Quarter at a very short time.In spite of the downfall I experienced; I clung on to the Lord and believed on myself on what the future I hold if I let it pass or let it be a chance for better progress. I believed that it was a test from God to see if I will fall down or stand up. I was sure that it was only the beginning of how life really was. â€Å"Challenges are what make life interesting and overcoming them is what makes life meaningful. † It reflected the life Vie gone through back then. This incident made e define myself as it allowed me put myself in others' shoes.I saw my condition as a chance to reflect and see what was really going on. It defined me as a person in a way that I showed more importance fo r others than myself. My faith was more sincere and true. No matter what pint of depression, no matter what pint of loneliness you're in, no matter how deep of trouble you are; God will always walk with you and will always be with you facing those difficulties. Guided by this vision and understanding, I was awarded a bronze medal in the Honors' Assembly the following school year. Hoping that more of these will come and God will continue to bless and guide me.It was a Sunday evening in February 13 of 2011 that our family experienced a car accident, and I faced a tragic event in my life. It was the most depressing and fearful episode of my life I have ever experienced. Deep thoughts entered my mind, emotions and feelings Vie never felt before. Will I take it as an obstacle in my life or take it as an opportunity? I made a decision to take it as an opportunity and use it for my never ending success in the continuous days of my life. â€Å"Change is the law of life. And those who look only to the past or present are certain to miss the future. † -John F. Kennedy