Monday, December 30, 2019
Brain Disease Essay - 2275 Words
What would you do if you had brain disease? The brain is the most important part of the human body. Without it, you would not be able to think, and more importantly, you would be dead. Two serious brain diseases are brain tumors and Alzheimerââ¬â¢s disease. A brain tumor is a massive growth of abnormal cells in the brain. There are many types of brain tumors. Some may be benign, which is noncancerous, or they may be malignant, which is cancerous (Brain Tumor). Alzheimers disease is an unstoppable brain disease that gradually damages ones memory and thinking. Eventually, the ability to do simple tasks everyday even becomes destroyed. For most people, Alzheimers disease show after the age of 60. This is known as late onset AD. Early onset isâ⬠¦show more contentâ⬠¦The cortex consists of four sections, called lobes. The frontal lobe is connected to reasoning, planning, speech, movement, emotions, and problem solving. The parietal lobe is associated with balance, recognizing, a nd movement. The occipital lobe is associated with vision. The temporal lobe is connected to hearing, memory, and speech. The cortex is highly wrinkled, making the brain more convenient, as this increases the brains surface area, giving it more room for neurons. The cerebrum is divided into two hemispheres- the left hemisphere, and the right hemisphere. The right hemisphere is associated with creativity, and the left one is linked with logic. A bundle of nerve fibers, known as the corpus callosum connects these hemispheres (Brain Structures and their Functions). The cerebellum, which is also known as the little brain, is similar to the cerebrum, since it also has two hemispheres and a highly folded surface. This part of the brain is linked with movement and balance. The cerebellum is assumed to be older than the cerebrum evolutionarily (Brain Structures and Their Functions). The brain stem controls basic life functions such as blood pressure, breathing, and heartbeat. Scientists say that the brain stem is the simplest part of the brain (Brain Structures and Their Functions). Dementia is the loss of intellectual processing such as thinking, reasoning,Show MoreRelatedAutism- Brain Disease572 Words à |à 2 PagesAutism is the second types of brain disease. According to Scheruermann and Webber (2002), autism is a development of disorder that caused by neurological impairment affecting brain chemistry and or brain structure. Even the exact reason of the neurological impairment is not yet known, but it is mostly due to the genetic links. Nevertheless, this symptoms is well-defined, hence essential information for educational treatment been contributed. Understanding based on autistic symptomology is the bestRead MoreIs Addiction A Brain Disease?1680 Words à |à 7 Pages Cognitive Addiction Addiction is a Brain Associated Disorder that Allows the Body to Become Dependent on a Substance Oliver Sutton General Psychology 150-101 Professor Shawn Matthews 30 September 2014 Oliver Sutton Professor Shawn Matthews General Psychology 150-101 30 September 2014 Is addiction a brain disease? The definition of disease is a disorder in an organism that produces specific signs/symptoms that affects a specific location and isnââ¬â¢t a direct result of any kind ofRead MoreAlzheimer s Disease Is A Disease Of The Brain1214 Words à |à 5 PagesAlzheimerââ¬â¢s disease is a disease of the brain. This disease deteriorates parts of the brain and causes memory loss. Alzheimerââ¬â¢s disease is thought to be a disease that only older individuals develop. Forgetting can be a terrifying event in a personââ¬â¢s life, not to mention the life of an older individual who probably already has other health issues to worry about. This disease is not curable; however, it can be treated to a certain extent. Basically, all the treatment does is try to delay theRead MoreDrug Addiction: A Brain Controlling Disease823 Words à |à 3 Pagesleft a major impact on the brains of each user. Drug addiction is a relapsing brain disease that is characterized by brain malfunction that alters the way the users think and behave. Normal balancing Mechanisms go haywire, allowing the drug to control the brain. Drug addiction has been a major concern for scientist in recent years. With research drug addiction is categorized as a neuron-disease from its large impact on the brain. Drug addiction is a complex brain disease characterized by compulsiveRead MoreDementia Is A Disease That Affects The Brain2029 Words à |à 9 PagesDementia is a disease that affects the brain. The main areas it affects are your memory and the mind. It can also affect your personality and can change your way of thinking and how you are and what you are like as a person. Dementia is extremely rare in a young person or a person under the ages of 65. Throughout my essay I am going to be looking at the different types of Dementia. I will also be looking at the different causes of the disease and the early signs and symptoms that come with the differentRead MoreParkinson Disease : A Brain Disorder1109 Words à |à 5 Pages Parkinson Disease By Teri Gordon BIO 202 Harrisonburg Campus Ã¢â¬Æ' Teri Gordon BIO 202 Kevin Chakos Harrisonburg Campus Research Paper Parkinson Disease Parkinson Disease is a brain disorder that affects movement, loss of muscle control and balance. The first symptoms usually include a tremor of the hand, foot, or leg which is often termed as a ââ¬Å"shaky palsy.â⬠The disease usually slowly progresses with symptoms getting more intense over many years. Some patients who develop Parkinsonââ¬â¢s inRead MoreSchizophreni A Chronic, Severe, And Disabling Brain Disease1224 Words à |à 5 PagesAlexandra Heck Abnormal Psychology Kristen Shirley 11 December 2016 Schizophrenia Schizophrenia is a chronic, severe, and disabling brain disease. This disease can develop at any moment in a lifetime to approximately one percent of the population. Although schizophrenia is not subject to a specific gender, men typically develop this disease earlier than women. The symptoms of schizophrenia vary from person to person but generally include; hearing internal voices not heard by others, or believingRead MoreAlzheimer s Disease And Its Effects On The Brain1132 Words à |à 5 Pages Last year my maternal Aunt Kate passed away. She had been diagnosed with Alzheimerââ¬â¢s disease (AD) about eight years earlier. My maternal grandmother also had been diagnosed with AD before her death. Later this month I will accompany my 77-year-old mother to her neurologist appointment. While she has not been diagnosed with AD, she has been prescribed Donepezil (Aricept), one of the newer drugs that are thought to reduce the decline in memory in patients that have or might be d eveloping dementiaRead MoreParkinson s Disease Affects The Brain877 Words à |à 4 Pagesneurodegenerative brain disorder, Parkinsonââ¬â¢s disease affects the neurons in the human brain. This disease affects everyone differently. However, there are common symptoms that all patients with Parkinsonââ¬â¢s experience. At this time, there is no cure for the disease, but there are several ways to improve the quality of life. Although research is never complete, there is a lot of information on Parkinsonââ¬â¢s disease that individuals should know. Parkinsonââ¬â¢s disease affects the brain of the individualRead MoreEffects Of Alzheimer s Disease On The Brain1133 Words à |à 5 PagesLast year my maternal Aunt Kate passed away. She had been diagnosed with Alzheimerââ¬â¢s disease (AD) about eight years earlier. My maternal grandmother also had been diagnosed with dementia before her death. Later this month I will accompany my 77-year-old mother to her neurologist appointment. While she has not been diagnosed with AD or dementia, she has been prescribed Donepezil (Aricept), one of the newer drugs that are thought to reduce the decline in memory in patients that have or might be
Sunday, December 22, 2019
Surrogate Motherhood Essay - 2531 Words
Surrogate motherhood refers to that condition of a fertile (footnote) woman who has been contracted to become impregnated via reproductive technologies such as donor or artificial insemination. It is that condition wherein that fertile woman also has agreed to transfer her rights on the child to the biological parents after giving birth. This is bounded by a contract that was signed by the contracting parents and the surrogate. The reasons for this generally fall into two categories. Either the contracting couple is unable to produce a child or they would prefer to eliminate or enhance certain genetic traits. My argument would apply to either case. For the purpose of this paper, the motivations are irrelevant and the logic followingâ⬠¦show more contentâ⬠¦It is also said that with this type of surrogacy, the intended mother enters into a step parent type of adoption (Canadian Surrogacy Options, Inc). Lastly, egg donation, would refer to the condition or process of maintaining a database for potential egg donors (Canadian Surrogacy Options, Inc.) For the purposes of this discussion, each of these engages in the commidification of the reproductive agency and human reproduction by legally and socially justifying a condition in which this capacity may become fungible. (FOOT NOTE) Motherââ¬â¢s egg, fatherââ¬â¢s sperm ââ¬â this type of surrogacy is usually employed in cases wherein the mother is not capable of carrying a fertilized egg for medical reasons. Donor egg, fatherââ¬â¢s sperm ââ¬â a type of surrogacy that is employed when there is doubt on the quality of the egg or there are no available ovaries for fertilization. Motherââ¬â¢s egg, donor sperm ââ¬â this is the opposite of donor egg, fatherââ¬â¢s sperm. This is actually taken into consideration when there is doubt in the quality of the fatherââ¬â¢s sperm. Donor egg, donor sperm ââ¬â is the type of surrogacy chosen by intended parents who would want to establish a genetic link with the child. Surrogate motherhood became popular in the 1980ââ¬â¢s. This was popularized by the case of Baby M, which primarily dealt on the ethical issues raised regarding reproductiveShow MoreRelatedSurrogate Motherhood940 Words à |à 4 Pagessurrogacy, or traditional surrogacy, the surrogate mother is impregnated with the sperm of the intended father by way of artificial insemination. In these cases, the surrogate mother not only carries the child but is genetically linked to the child as well. She however relinquishes her role of social mother to the intended mother. In host surrogacy the intended parents produce an embryo through in vitro fertilization, which is then transplanted into the surrogate mother who develops and gives birthRead More Surrogate Motherhood Essay851 Words à |à 4 Pages Surrogate Motherhood: Good or Bad? nbsp;nbsp;nbsp;nbsp;nbsp;There are many controversies surrounding the idea of surrogate motherhood, by its definition, it is a course of action that goes outside natural reproduction. Although surrogacy was first brought up in the bible it is only until recently that it has actually become an issue for criticism and debate. Factors such as the growth of infertility in modern society, coupled with the declining number of children available for adoption,Read MoreEssay on Surrogate Motherhood912 Words à |à 4 PagesSurrogate Motherhood is something that not many people actually support, even though it ââ¬Å"is one of the many reproductive techniques that have enabled infertile couples to have childrenâ⬠(qtd. in Freedman). There are two types of surrogacy, traditional and gestational. The traditional type of surrogacy involves the surrogate mother being (AI) artificially inseminated with the sperm of the intended father or sperm from a donor when the sperm count is low. In either case the surrogateââ¬â¢s own egg willRead MoreEssay on Surrogate Motherhood and Technology3216 Words à |à 13 PagesSurrogate Motherhood and Technology Surrogacy: The Technology Reproductive technologies have a lot to do with the theology of the family. One aspect of reproductive technology deals with the issue of pregnancy for profit. This concept is known as surrogacy, and it is used for procreation. Ten to fifteen percent of married couples are unable to have children of their own.1 A surrogate mother is a woman who carries the child, usually for an infertile couple. Surrogacy has been aroundRead MoreShould Surrogate Motherhood Be Allowed?1019 Words à |à 5 PagesSurrogate Motherhood is when one women carries to term the fertilized egg of another woman. This procedure is chosen by married couples who can not conceive a child in the natural way. In some occasions the mother may be able to produce an egg, but has no womb or some other physical problem which prevents her from carrying a child. Whether or not the husband can produce a large amount of sperm is not a problem. Once the egg and sperm are combined in a petri dish fertilization is very likelyRead MoreThe Legal Status Of Surrogate Motherhood1275 Words à |à 6 PagesVassilenko Berkeley College Ã¢â¬Æ' The Legal Status of Surrogate Motherhood in Russia and USA Russia is one of the few lucky countries where surrogacy is allowed by law. Legal aspects of surrogate motherhood are governed by the Family Code, the Fundamentals of Legislation on health care. Implementation of the medical component of the surrogate motherhood is governed by Order 67 of the Ministry of Health. Countries where legally allowed surrogate motherhood and reproductive, including commercial: US (inRead More Should Surrogate Motherhood be Allowed? Essay981 Words à |à 4 Pages Surrogate Motherhood is when one women carries to term the fertilized egg of another woman. This procedure is chosen by married couples who can not conceive a child in the ââ¬Å"natural wayâ⬠. In some occasions the mother may be able to produce an egg, but has no womb or some other physical problem which prevents her from carrying a child. Whether or not the husband can produce a large amount of sperm is not a problem. Once the egg and sperm are combined in a petri dish fertilization is very likelyRead MoreThe Womb : A Marxist Analysis Of Surrogate Motherhood2124 Words à |à 9 PagesCommodification of the Womb: A Marxist Analysis of Surrogate Motherhood In the context of classical Marxism, the moral permissibility of surrogate motherhood is forcefully negated. Marxism condemns the practice of surrogacy as an exemplification of commodity fetishism in capitalist society, viewing surrogacy arrangements as a commercialization of the female womb. The term, ââ¬Å"commodification of the womb,â⬠thus arises to describe the process by which services carried out by the female womb are soldRead MoreSurrogate Motherhood Is Considered The Most Controversial Form Of Medically Assisted Conception Essay1387 Words à |à 6 PagesSurrogate motherhood is considered the most controversial form of medically assisted conception. Surrogacy is defined as an arrangement by which a woman gives birth to a baby on behalf of a woman who is incapable of conceiving babies herself or is infertile. The issue of surrogacy has been running for almost three decades. Elizabeth Cane was the first woman in the United States to legally become a surrogate mother in 1980 (Chittom and Wagner). Surrogate births are illegal in many countries, includingRead More surrogate mothers Essay1148 Words à |à 5 Pages A Surrogate Mother is defined as ââ¬Å"an adult woman who enters into an agreement to bear a child conceived through assisted conception for intended parents.â⬠The couple is usually referred to as intended parents who enter into an agreement providing that they will be the parents of a child born to a surrogate through assisted conception, using an egg or sperm of at least one parent. 1 RIGHT - Surrogate motherhood is a right entitled to those who are ready and able to take on the responsibility of
Saturday, December 14, 2019
A Thousand Splendid Suns Analysis Free Essays
Create questions you would ask the author and at least one of the people in the book. Include why you would ask each particular question, and connect the question to a specific event (quote with page #) in the book. If I were to ask questions to the author and characters, they would be about their experiences. We will write a custom essay sample on A Thousand Splendid Suns: Analysis or any similar topic only for you Order Now The one question I would ask Khaled Hosseini is, All the characters in this book were granted poetic justice, but why not Mariam? Mariam did nothing monstrous to deserve execution; her act of killing Rasheed was done in self-defense and the defense of Laila. Nonetheless, she suffered the shame and punishment from the government under which she lived in. ââ¬Å"Like a compass needle that points north, a manââ¬â¢s accusing finger always finds a woman. Always. You remember that, Mariam. â⬠pg. 364 Even though Mariamââ¬â¢s execution was injustice in my eyes I believe that for Mariam her death sentence was an legitimate end to her life which had legitimate beginnings. Before her death sentence, she recites lines from the Koran asking for mercy and forgiveness which portrays her humbleness and her dedication to loved ones in her life. I would like to ask Mariam why she refused to call witnesses at her trial. Why did she not try to escape with Tariq and Laila? Calling witnesses to her trial could have proved to be beneficial to Mariam; she might not have been sentenced to death but she didnââ¬â¢t even try. ââ¬Å"Remembering the last time sheââ¬â¢d signed her name to a document, twenty- seven years before, at Jalilââ¬â¢s table, beneath the watchful gaze of another mullah. pg. 364 There was still a little hope left her, her dreams were to see Laila and Tariq happy and to watch Aziza and Zalmai grow but just like that she gave it all up. Her life had not ended but she still acted as if there was nothing that could be done; she herself gave up her hopes which contrasted her character at the beginning of the book. Lastly, I would like to ask Kh aled why was Laila not given a chance to attend university and complete her secondary education? It is obvious in the early stages of the book that her dream is be educated and educate others so that she can play a womenââ¬â¢s worthy role in their society. Her young self is contradicting to what her character becomes. I wonder why after building her family and living in peace she didnââ¬â¢t have the desire to attend university. She had a good opportunity and I feel it would have benefited her and her family a lot. One question I would ask Laila is why she wanted to move back to Kabul? Wasnââ¬â¢t she done with all the suffering and painful memories she endured there? ââ¬Å"â⬠¦Where do we go from here, Tariq? How long do we stay here? This isnââ¬â¢t home. Kabul isâ⬠¦Ã¢â¬ pg. 390 I realize it was her homeland, she grew up there and the Kabul they left during the war was now half restored; though why would she risk the lives of her family members and their freedom they obtained in Murree. ââ¬Å"Itââ¬â¢s a good life, Laila tells herself, a life to be thankful for. It is, in fact, precisely the sort of life she used to dream for herself in her darkest days with Rasheed. â⬠How to cite A Thousand Splendid Suns: Analysis, Papers
Friday, December 6, 2019
Changes in Synapses That Happen During Classical Conditioning free essay sample
The first scientific study of animal learning demonstrated a form of associative learning classical conditioning; it can be described as a process of learning where a neutral stimulus (e. g. bell) is paired with an unconditional stimulus (e. g. food) and as a consequence, the neutral stimulus becomes conditioned and comes to elicit the same response (e. g. salivation) as the unconditional stimulus even when presented alone (Murphy Naish, 2006). It has been proposed that ââ¬Å"â⬠¦classical conditioningâ⬠¦is quite easy to explain on the basis of simple changes in synapses. â⬠In order to assess the merit of this claim, it is necessary to describe the simple changes that occur in synapses during classical conditioning. All forms of learning require some synaptic change, however it isnââ¬â¢t clear whether these can always be explained by the same kind of synaptic changes that happen in classical conditioning (Murphy Naish, 2006). Some forms of learning will be explored in terms of synaptic changes. At a neurobiological level, learning is ââ¬Å"createdâ⬠by the interconnectedness between neurons (synapses). Hebb proposed that if the postsynaptic neuron fired while the presynaptic terminal was releasing neurotransmitter (NT), the presynaptic neuron would be more likely to influence the postsynaptic neuron on subsequent occasions, i. e. when previously unassociated neurons fire simultaneously on repeated occasions, new links are formed which increase synaptic efficiency (Hebbian learning). Hebbian learning explains Pavlovââ¬â¢s associative learning classical conditioning. Pavlov carried out experiments with dogs and noted their salivation reflex in response to food presentation (unconditioned response), later he repeatedly paired the presentation of food (unconditioned stimulus) with the ringing of a bell (neutral stimulus) and finally he sounded the bell (conditional stimulus) without presenting the food and that alone triggered salivation (conditioned response) (Murphy Naish, 2006). Repeated activity in two neurons simultaneously (e. g. bell, food) strengthens the synapses and eventually activity in one of the two neurons alone will produce activity in the other because new effective links are formed by the repeated and simultaneous firing, creating an auto-associated pattern (bell and food repeatedly presented together lead to a conditioned learning response). The conditioning of an eye-blink to a buzzer is another example that can be supported by Hebbââ¬â¢s proposal of changes in synaptic efficacy. Activation of the neutral (presynaptic) neuron that fires to the sound of a buzzer at the same time that a puff of air occurs (unconditioned neuron) causes an eye-blinking response (blinking neuron). At first, the connection between the neutral neuron and the postsynaptic neuron is very weak, so the release of NT by the neutral neuron is unlikely to trigger firing in the postsynaptic neuron. However, the unconditioned (presynaptic) neuron has an efficient synapse with the postsynaptic neuron i. e. this presynaptic neuron causes the postsynaptic neuron to fire thus producing a blinking response. If both presynaptic neurons are repeatedly activated at the same time that the air-puff occurs, an excitatory postsynaptic potential is elicited in the blinking neuron and the previously weak synapse will become stronger to the point that, this synapse alone can trigger firing in the postsynaptic neuron that responds to the air-puff and causes eye-blinking (Murphy Naish, 2006). Classical conditioning was originally interpreted as an automatic response linking a new stimulus to an existing reflex behaviour (S-R sequence). However, further research into conditioning found the process to be more complex, Pavlov realized that his dogs came running to be fed when they heard the bell. But, running isnââ¬â¢t an automatic reflex; this could perhaps be seen as instrumental conditioning, which happens when behaviour is rewarded. This kind of learning appears more complex than classical conditioning, as previously interpreted, as the animal has to acquire what appears like a declarative memory (a memory of ââ¬Å"knowing whatâ⬠). Thus, this process of learning is likely to involve a more complex system of adjusting Hebbian synaptic efficiency. Instrumental conditioning is often used when teaching new tricks to a dog, e. g. teaching a dog to ââ¬Å"shake handsâ⬠; upon hearing the command the dog sits down and raises a front paw, then the dog receives a reward (Murphy Naish, 2006). Applying Hebbian learning to this example isnââ¬â¢t straightforward, however as the time between triggering the behaviour and receiving the reward has to be almost instantaneous, or the dog wonââ¬â¢t learn the trick, this can be linked to Hebbian learning both neurons (human voice and reward) have to be simultaneously activated for the behaviour to take place, i. . synaptic strength will increase only if both pre- and postsynaptic neurons are simultaneously activated (Murphy Naish, 2006). Perhaps ââ¬Å"rewardâ⬠neurons fire while there is activity in the neurons that direct the behaviour. The dog may anticipate the reward which leads to the ââ¬Å"shaking-handsâ⬠behaviour and is likely to strengthen associated synapses. T he theory that learning can induce changes in neural networks is supported by recordings from the sea slug aplysia while the animal is learning (Murphy Naish, 2006). Aplysia is perhaps the most simple example of biological changes at synapses resulting in encoding environmental events and thus learning. This animal is able of non-associative learning brought about by changes in synaptic connections between sensory and motor neurons. If a mild stimulation is applied to the siphon, it withdraws its gill, however repeated mild stimulation decreases its reponse, i. e. habituation occurs, due to a reduction in the number of synaptic connections which leads to a decrease in synaptic efficiency. But, if an intense stimulus is applied to the tail or head this results in withdrawal of the gill, i. . sensitization occurs, due to an increase in the number of synaptic connections, leading to increased synaptic efficiency (Murphy Naish, 2006). The different examples of learning presented can to some extent be supported by Hebbââ¬â¢s proposal of changes in synaptic efficiency. Since synaptic changes are all we have available as a physical basis of learning they could perhaps be further explored as the physical basis of all forms of learning. Word count: 984 References Murphy, K. , Naish, P. (2006). Learning and Memory, Learning and Language, 2nd ed. , pp. 1-29, 42-48, The Open University, Milton Keynes. QUESTION 2 a. i. For dopamine (DA) to ââ¬Å"skyrocketâ⬠, it means that high levels of it were released by the dopaminergic system and as this substance plays a role in the appetitive phase of feeding motivation, will likely motivate the person to obtain food in order to bring their body nutrients back to optimal level (homeostasis). The increase in DA levels is caused by the activation of the mesolimbic dopaminergic pathway which increases its neural activity. a. ii. A PET scan procedure with a participant who is a cheeseburger eater (non-meat eaters might not experience a DA rise). The participant should fast for 8-12 hours (to make sure he/she feels hungry). A radioactively-labelled marker is injected intravenously into the participant and his/her brain is scanned before waving a hot cheeseburger in front of his/her nose/mouth and scanned again while this is happening. Brain scans will compare DA levels ââ¬Å"beforeâ⬠and ââ¬Å"duringâ⬠the food stimulation. The comparison will look both at brain regions/neurons affected and activity levels. As the marker competes with the brainââ¬â¢s released DA to bind to receptors, the scans will provide an inverse measure of the brainââ¬â¢s DA levels, i. . an increase in DA will show a low signal from the marker and vice-versa. Word count: 200 b. i. This could happen either because of genetic reasons i. e. the person was born with fewer dopamine D2 receptors or because the repeated use of certain substances/drugs has led to a decrease in D2 receptors. It is also possible that the combination of genetic fa ctors and drug use contribute to a decrease in D2 receptors. b. ii. The best kind of evidence would be brain imaging (e. g. PET scans) of addicts; ideally from before and during the addiction. In order to compare the same individual(s) levels of D2 receptors so as to decide whether D2 receptors decreased with drug use or were originally low. Brain imaging of close relatives or genetic studies would also be useful in deciding if fewer D2 receptors were inherited. b. iii. The notion of ââ¬Å"desensitizationâ⬠in the extract indicates that the repeated use of addictive drugs decreases the amount of dopamine D2 receptors causing the dopaminergic system to become less sensitive to DA, thus leading the addict to seek greater amounts of the drug. This concept contrasts with ââ¬Å"incentive sensitizationâ⬠, i. e. the repeated exposure of the NS to addictive drugs leads to increase in dendritic spines which ââ¬Å"pullsâ⬠the addict towards drug-related incentives e. g. syringes, locations associated with drug-taking. Word count: 199 c. i. In terms of incentives what might be involved is: pleasure, cues paired with food e. g. smell, sight of food, location. A spike in dopamine levels caused by presentation of a conditional stimulus e. g. tress, pain, watching TV etc, if the person tends to eat when these occur. c. ii. The ââ¬Å"much moreâ⬠and hunger interact as external and internal factors in the feeding motivation. The internal factors reflect an internal deficit of energy (e. g. nutrients, glucose levels), the external factors are related to things like, sight or smell of food, changing in available diet. c. iii. The functional significance is to pull the person to seek food and restore homeostatic balance, thus lowering the bodyââ¬â¢s perceived risk to physical integrity. Word count: 100 d. Schizophrenia is associated with abnormalities in the anatomy of the brain and the network connections within it (made of small building blocks called neurons), thus producing abnormal levels of certain brain chemicals. From this point of view it might be considered a brain disorder, however the abnormality or dysfunction that occurs in the brain leads to particular patterns of thinking and feeling which cause abnormal psychological experiences. This second aspect may point to a classification of schizophrenia as a mind disorder. From a biological psychology perspective brain structure/activity and thoughts/feelings constitute different aspects of a highly complex phenomenon where a dysfunctional brain affects an individualââ¬â¢s psychological experience. While major symptoms like: hallucinations, delusions, thought disorder, affective flattening and social withdrawal tend to be the focus of attention and may seem like the confirmation of a mind disorder, there are subtle and ongoing cognitive difficulties which tend to be ignored: problems with coordination, attention, concentration and willed action. Evidence shows: lower IQ levels, abnormal patterns of eye movement when following a target, unusual EEGs. PET and MRI scans provide detailed evidence of deep measurable brain abnormalities at the level of: structure, cells and chemicals which affect brain functioning in schizophrenics. Word count: 199W
Thursday, November 28, 2019
English Grammar vs. Native Mother Tongue Essay Example Essay Example
English Grammar vs. Native Mother Tongue Essay Example Paper English Grammar vs. Native Mother Tongue Essay Introduction English Grammar vs. Native Mother Tongue English Grammar vs. Native Mother Tongue Essay Body Paragraphs English Grammar vs. Native Mother Tongue Part 1 Points to consider #1 The explanation given is just right since it explains why one would consider using the verb in the past tense instead of any other tense. In addition, the explanation points out one of the ways of using articles when speaking, and it gives one of the differences between a definite and an indefinite article. Points to consider #3 Poppy refers to a shade of red color. It is derived from the poppy plant, which has red flowers. I would give the same definition to the beginners and the advanced class. I would use a picture of the poppy plant to illustrate to the students what a poppy plant looks like. However, for the advanced class, I would include other details concerning the poppy plant, such as the fact that its seeds are used in making narcotics. Points to consider #6 Adults cannot learn a language the same way as children. Adults tend to rely more on their experiences when learning a language. Most adults find it difficult to learn a second language because they think in their native language, and then translate the language accordingly. They tend to memorize and learn more about the grammar, structure and pronunciation. On the other hand, children learn by imitation. They are not overly concerned about the structure and grammar of the language. They learn from copying what they hear, and they do not get tired of repeating one word until they understand it (Benson Nunan, 2005). Part 2: Question 1 A Japanese student might say Eat? Food not cooked Stop! Or _ shoot Part 2: Question 2 In the Japanese language, the verb is not sensitive to the subject. The first word, eat is a sentence by itself. It can mean, ââ¬Å"Will you eat?â⬠ââ¬Å"Do you want to eat?â⬠or ââ¬Å"Will they eat?â⬠the subject is not explicit. This explains why the Japanese use minimal words (Cipris Hamano, 2002). The verbs do not have different forms to indicate who is being addressed. They do not specify t he gender or the number of people being addressed. They therefore create a lot of ambiguity and misunderstanding in some cases. The verb eat in English is not a complete sentence and one may not understand its exact meaning. One is required to use subjects when using the English language. The second sentence could mean, ââ¬Å"The food is not cookedâ⬠ââ¬Å"I have not cooked the foodâ⬠or ââ¬Å"the food was not cookedâ⬠. This follows the first example, which shows how the Japanese use optional subjects in their sentences. The third sentence shows how the subject is usually implied rather than stated in a sentence. A Japanese person might find nothing wrong with the sentence. On the other hand, someone who speaks English as a native language might not fully understand the sentence. The Japanese language usually places the verb at the end of the sentence. Japanese students therefore have a problem with sentence structure. Part 2: Question 3 The first activity I would use to teach the students is role-playing. This will constitute pairing the students in twos and assigning them different roles. For instance, I can assign students the role of a teacher and a student. I will then construct a simple conversation that will enable them to use the subjects and pronouns such as ââ¬Å"youâ⬠, ââ¬Å"Iâ⬠, ââ¬Å"heâ⬠, and ââ¬Å"sheâ⬠among others. Another activity that I will use will be in the form of a play. The students can help with the ideas of the play. They can take an active part in the play by developing the plot of the play. This will be beneficial since it will help me to correct their grammar as they are acting out their roles. The play will most likely be a comic role since it is intended to portray the consequences of misunderstanding, brought about by wrong usage of grammar. Role-playing and acting are especially important when helping the students who have a problem with using subjects. The two activities will enable s tudents to learn the importance of including subjects and pronouns in their conversations. They will understand how omission of the subject and assumptions can create misunderstanding. The first two activities are important because they help the students to improve their conversational skills. Both activities can be used in the class and outside of the classroom, such as during playtime. I will get the opportunity to correct the students when they are in the class. The third activity I will use is filling in blank spaces written in form of a simple story, rather than using questions. For instance, I can tell the students a story that is relevant to them, such as once concerning a popular artist. I will then give them the same story in written form, where I will have omitted pronouns. I will give them the choice of using two pronouns in a particular sentence, and they should fill the space with the correct pronoun. Using a pronoun is an important step when learning how to use subject s in a sentence. Students have different learning patterns, and some students might not be comfortable with the role playing or acting in class. This activity is more personal in nature since the students will fill in the blanks individually. Some students might prefer this approach, as it enables them to work at their own pace. They will get the time to think about what they are doing, and they will not feel ashamed of being wrong. In some cases, some students might find some of the activities that are used in the classroom too public for their liking. They therefore appreciate when the teachers assign them activities which they can do alone. Part 3: Question 1 The first sentence, ââ¬Å"He has a fast carâ⬠means that his car is designed for speed. Their engines and bodies are different from the other models. The best way I can illustrate this to the students is by showing them pictures and videos of fast cars such as sports cars. Fast cars are shaped differently. They are sma ll and are usually meant for two people. They are shorter and leaner than the ordinary cars. Most of them are designed to look like sports cars. I will bring pictures of different fast cars such as Lamborghini, and ask the students to compare them with slower cars such as GMC Terrain. The students can compare the size and shape of the cars, and this will enable them to understand the meaning of a fast car. The second sentence, ââ¬Å"He drives fastâ⬠, simply means that the driver drives at a high speed. I can illustrate this to the students using different ways. For instance, the students can directly observe different drivers on the road, and they can tell who is driving at a higher speed. I can also tell them to compare the racecar drivers with ordinary drivers on the road. To compare the two sentences, I can have a person on the fast car drive at a slow speed, and another person on a seemingly slow car drive at a higher speed. In the first case, fast is being used as an adje ctive since it is modifying or telling more about the noun. In the second case, fast is being used as an adverb, since it is modifying the verb. The adverb, ââ¬Ëfastââ¬â¢ is telling more about the verb, or the driverââ¬â¢s action, of driving. Part 3: Question 2 The first activity I will use is to tell the students to bring in pictures of fast looking cars. The students already have an idea of the characteristics of fast cars. They can bring in pictures of such cars and they can judge each other based on what they know. I can divide a chart into two sides. On one side, t will tell the students to post pictures of the fast cars, and on the other side, the students can post pictures of the slower cars. The students can then differentiate between the two pictures by noting the visible physical characteristics of the car. For instance, slower cars tend to be bigger, and they look more powerful than the fast cars. Having the pictures of the cars on the chart will enable students to look at the cars constantly. This is especially useful for slow learners, or those who tend to forget frequently. Another activity, which I will use, is to divide the students into two groups. One group will have the task of finding out the different ways in which fast can be used as an adjective. The group will form simple sentences using the word fast as an adjective. The other group will find out different ways in which fast can be used as an adverb. The group will form simple sentences using the word fast as an adverb. They will work together, and everybody will have an active role. All students have to come up with at least two sentences. The students will then hand in their work for correction. The students will repeat the task in case I find any correction in their work. After I am satisfied that both groups have a clear understanding, I will then exchange the groups. The group which had done the assignment by using the adjective will form sentences using the adverb and vi ce versa. The third practical activity I will use is to give the students handouts with simple sentences, which use the word fast differently as adverbs or adjectives. The sentences will be simple words which they use every day, and this will ensure that they will not have any difficulty completing the assignment. I will pair the students into small groups for this exercise. The students will identify different ways explaining how the word fast has been used. They will have different columns titled adjective and adverb. They then write the sentence where the word appears in the appropriate columns. The teamwork will enable students to correct each other. References: Benson, P., Nunan, D. (2005). Learnersââ¬â¢ stories: Difference and diversity in language learning. Cambridge, MA: Cambridge University Press Cipris, Z., Hamano, S. (2002). Making sense of Japanese grammar: A clear guide through common problems. Honolulu, HI: University of Hawaii Press We will write a custom essay sample on English Grammar vs. Native Mother Tongue Essay Example specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on English Grammar vs. Native Mother Tongue Essay Example specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on English Grammar vs. Native Mother Tongue Essay Example specifically for you FOR ONLY $16.38 $13.9/page Hire Writer
Monday, November 25, 2019
Benefits of Solar-Powered Water Heaters
Benefits of Solar-Powered Water Heaters Dear EarthTalk: I heard that using a solar powered water heater in my home would reduce my CO2 emissions significantly. Is this true? And what are the costs? Anthony Gerst, Wapello, IA Conventional Water Heaters Use Energy According to mechanical engineers at the University of Wisconsinââ¬â¢s Solar Energy Laboratory, an average four-person household with an electric water heater needs about 6,400 kilowatt hours of electricity per year to heat their water. Assuming the electricity is generated by a typical power plant with an efficiency of around 30 percent, it means that the average electric water heater is responsible for about eight tons of carbon dioxide (CO2) annually, which is almost double that emitted by a typical modern automobile. The same family of four using either a natural gas or oil-fired water heater will contribute about two tons of CO2à emissions annually in heating their water. And as we know, carbon dioxide is the main greenhouse gas responsible for climate change. Conventional Water Heaters Pollute Surprising as it may seem, analysts believe that the annual total CO2 produced by residential water heaters throughout North America is roughly equal to that produced by all of the cars and light trucks driving around the continent. Another way of looking at it is: If half of all households used solar water heaters, the reduction in CO2à emissions would be the same as doubling the fuel-efficiency of all cars. Solar Water Heaters Gaining Popularity Having half of all households use solar water heaters might not be such a tall order. According to the Environmental and Energy Study Institute (EESI), there are 1.5 million solar water heaters already in use in U.S. homes and businesses. Solar water heater systems can work in any climate and EESI estimates that 40 percent of all U.S. homes have sufficient access to sunlight such that 29 million additional solar water heaters could be installed right now. Solar Water Heaters: The Economical Choice Another great reason to switch to a solar water heater is financial. According to the EESI, residential solar water heater systems cost between $1,500 and $3,500, compared to $150 to $450 for electric and gas heaters. With savings in electricity or natural gas, solar water heaters pay for themselves within four to eight years. And solar water heaters last between 15 and 40 yearsthe same as conventional systemsso after that initial payback period is up, zero energy cost essentially means having free hot water for years to come. Whatââ¬â¢s more, in the U.S. federal government offers homeowners tax credits of up to 30 percent of the cost of installing a solar water heater. The credit is not available for swimming pool or hot tub heaters, and the system must be certified by the Solar Rating and Certification Corporation. What to Know Before You Install a Solar Water Heater According to the U.S. Department of Energyââ¬â¢s ââ¬Å"Consumerââ¬â¢s Guide to Renewable Energy and Energy Efficiency,â⬠zoning and building codes relating to the installation of solar water heaters usually reside at the local level, so consumers should be sure to research the standards for their own communities and hire a certified installer familiar with local requirements. Homeowners beware: Most municipalities require a building permit for the installation of a solar hot water heater onto an existing house. For Canadians looking to get into solar water heating, the Canadian Solar Industries Association maintains a list of certified solar water heater installers, and Natural Resources Canada makes its informative booklet, ââ¬Å"Solar Water Heating Systems: A Buyerââ¬â¢s Guide,â⬠available as a free download on their website. EarthTalk is a regular feature of E/The Environmental Magazine. Selected EarthTalk columns are reprinted on About Environmental Issues by permission of the editors of E. Edited by Frederic Beaudry.
Thursday, November 21, 2019
An empirical analysis of the components of retailer customer loyalty Essay
An empirical analysis of the components of retailer customer loyalty programs - Essay Example ks into one of the ways of capturing customer for loyalty and retention for the continuous competitive advantage of a business enterprise ââ¬â through a retailer customer loyalty program. The concept of customer loyalty program is simple and yet complicated because of the multiple activities related to it but the goal is always the same ââ¬â to encourage repeat business. Often, the business enterprises or the retailers, as they are the focus of this study offer a membership club to its customers. The members are then entitled to benefits, perks, privileges, discount schemes or whatever activities and benefits that the company has lined up exclusive to these member-customers. As the study by Fiorito, Gable and Tople stated: ââ¬Å"one means of achieving loyalty, from the activities engaged in by retailers (e.g. measuring customer satisfaction; handling complaints) to the benefits being offered (e.g. providing financial incentives to customers; sending customers thank you notes) that contribute to maintaining a long-lasting, permanent relationship with customersâ⬠(Fiorito, Gable and Tople, 2006, p 32). to determine the benefits offered to customers and activities taken by retailers whether or not they have formal customer loyalty programs, whether there are differences in the benefits/activities of retailers with and without formal loyalty programs whether specific benefits/activities of retailers can predict whether or not they have formal loyalty programs (Fiorito, Gable and Tople, 2006, p 32). It also wanted to know the evaluation of the existing customer loyalty programs by its perceived success through meeting the enterpriseââ¬â¢s expectations and increase in sales and if the program will be implemented continuously (2006, p 34). Thus, these are three specific areas explored by the study. Primarily, it was aimed to know the specific benefits and activities that were designed for the customers in line with the customer loyalty schemes even if the retailers do
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