No Taste Without Saliva Experiment and Explanation

Heres a quick and easy science experiment for you to try today. Can you taste food without saliva? Materials dry food, such as cookies, crackers or pretzelspaper towelswater Try the Experiment Dry your tongue! Lint-free paper towels are a good choice.Place a sample of dry food on your tongue. Youll get the best results if you have multiple foods available and you close your eyes and have a friend feed you the food. This is because some of what you taste is psychological. Its like when you pick up a can expecting cola and its tea... the taste is off because you already have an expectation. Try to avoid bias in your results by removing visual cues.What did you taste? Did you taste anything? Take a sip of water and try again, letting all that saliva-goodness work its magic.Lather, rinse, repeat with other types of food. How It Works Chemoreceptors in the taste buds of your tongue require a liquid medium in order for the flavors to bind into the receptor molecules. If you dont have liquid, you wont see results. Now, technically you can use water for this purpose rather than saliva. However, saliva contains amylase, an enzyme that acts on sugars and other carbohydrates, so without saliva, sweet and starchy foods may taste different from what you expect. You have separate receptors for different tastes, such as sweet, salty, sour and bitter. The receptors are located all over your tongue, though you may see increased sensitivity to certain tastes in certain areas. The sweet-detecting receptors are grouped near the tip of your tongue, with the salt-detecting taste buds beyond them, the sour-tasting receptors along the sides of your tongue and the bitter buds near the back of the tongue. If you like, experiment with flavors depending on where you place the food on your tongue. Your sense of smell is closely tied to your sense of taste, too. You also need moisture to smell molecules. This is why dry foods were chosen for this experiment. You can smell/taste a strawberry, for example, before it even touches your tongue!

Technology Has The Power Of The Education System - 899 Words

Technology has the power to revolutionize the education system. Current and future educators are responsible for finding meaningful ways to integrate technology into schools; however, thus far technology integration has not created the success that has been visualized. Perhaps some of the issues with the integration of technology is the educational systems unwillingness to change its paradigm. Technology cannot just be another means to transfer knowledge to student, but should be used for the students to create their own knowledge. Thus, technology can make students active not passive participants in the learning process. Digital classrooms, virtual learning, and adaptive technologies are three methods that have the power to transform the educational system to meet the needs of learners in the twenty-first century. Yet, all stakeholders need awareness of both the positive and negative impact these technologies can have on learning. Digital classroom, or flipped classroom, is th e new buzzword in education. â€Å"Dr. Barbi Honeycutt (2014) refers to the FLIP as Focusing on your Learners by Involving them in the Process.† (Honeycutt Garret, 2014). The flipped classroom offers a student-centered, active model of instruction, where students watch a lecture or complete a reading assignment independently as homework using various technological devices. During the scheduled class time, students work with the teacher, independently or in cooperative groups synthesizing theShow MoreRelatedComputer Power Group Case Analysis Essay example825 Words   |  4 PagesComputer Power Group Case Analysis Evaluate CPG’s brand portfolio and architecture Founded in 1968, Computer Power Group (CPG) was Australia’s largest publicly listed information technology service company. 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The Effects Of Bullying On Children And Adolescents Essay

Background Before discussing the effects of bullying, it’s important to know the definition of bullying. It has numerous definitions, all of which are related to aggression and control of power by intimidation. Bullying is generally defined as an intentional act of harm, either physical or emotional, upon those that are considered inferior or weaker. Not only that, but it can also be harmful to children and adolescents who are constantly moving through their identity development (Kira, Lewandowski, Ashby, Somers, Chiodo, Odenat, 2014). It is also said that involvement in bullying, as the bully or victim, has negative effects on the physical and psychological health of children and on their future psychosocial adjustment as adults (Vaillancourt, Hymel, McDougall, 2013). According to Copeland (2013), research on bullying can be traced to the 1960s. 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Gays In The Military Essay Research Paper free essay sample

Homosexuals In The Military Essay, Research Paper # 8220 ; Don # 8217 ; t Ask Don # 8217 ; t Tell # 8221 ; and How It # 8217 ; s Affected the Military For about 50 old ages, it has been the U.S. military # 8217 ; s official policy to except homophiles from service. In November 1992, President # 8211 ; elect Clinton told Americans that he planned to raise the military # 8217 ; s long # 8211 ; standing prohibition on homosexuals and tribades. We will write a custom essay sample on Gays In The Military Essay Research Paper or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Homosexual work forces and adult females, he said, should non be prevented from functioning their state based on their sexual orientation. Soon after taking office in 1993, Clinton faced powerful military and congressional resistance to raising the prohibition. General Colin Powell, so # 8211 ; president of the Joint Chiefs of Staff, and Senator Sam Nunn, who was president of the Senate Armed Forces Committee between 1987 an 1994 and left Congress in 1996, announced that they would seek to barricade his efforts to raise the prohibition. For the following six months, argument raged over what to make about the military # 8217 ; s prohibition on homosexuals and tribades. Clinton # 8217 ; s broad protagonists wanted him to follow through on his promise to raise the prohibition, pressing the demand to stop favoritism against homosexuals and tribades. Conservatives, military leaders and some lawgivers of both parties argued that the presence of declared homophiles in the armed forces would be damaging to military preparedness. They said that allowing homosexuals and tribades serve would destruct all morale and gnaw good subject and order. Ban oppositions maintained that cheery people were capable work forces and adult females who should be allowed to function their county. In July 1993, a via media policy was struck between protagonists and oppositions of the prohibition. The via media, known as # 8220 ; wear # 8217 ; t inquire, wear # 8217 ; t state, # 8221 ; allowed homosexuals and tribades to function in the military every bit long as they did non proclaim their homosexualism or engage in homosexual behavior. Under the policy, military commanding officers would non seek to happen out the sexual orientation of the forces, and homosexual and sapphic forces would non unwrap their sexual orientation. The policy marked a alteration from past pattern in that merely being homosexual was no longer a disqualifier for military service. Conservatives saw the alteration as a too bad relaxation of the absolute prohibition on cheery people. Liberals were dissatisfied because the new policy still allowed the military to throw out homosexuals and tribades if they revealed their orientation. While some progressives disagree with the policy, reasoning that it punishes homosexuals and tribades for prosecuting in the same sorts of behaviour that straight persons are free to prosecute in, they maintain that military leaders should at least abide by the policy and stop their # 8220 ; enchantress Hunts # 8221 ; for homosexual people. Many see the right to function openly in the military as a cardinal civil right for homosexuals and tribades. Groups such as the Servicemembers Legal Defense Network ( SLDN ) and the American Civil Liberties Union ( ACLU ) have supported cheery service members in legal challenges to the policy. In 1997 SLDN documented 563 misdemeanors of the policy. The Clinton disposal and military leaders defend the current policy and the manner it has been enforced. They argue that leting cheery people to function openly would harm military preparedness by destructing military personnels # 8217 ; morale and interrupting order and subject. Policy guardians argue that the armed forces is a particular establishment that holds itself to stricter regulations than those observed by the remainder of society. Because the armed forces must carry through the important mission of supporting the U.S. and its Alliess, they say, its leaders # 8217 ; positions on how to accomplish optimum preparedness should be respected. Pentagon functionaries say that while they believe the current policy is working good, they will look into instances of alleged maltreatment. Gay people have non ever been barred from military service, and in fact, have served in the state # 8217 ; s wars throughout its history. The military # 8217 ; s official stance toward homosexuals and tribades has evolved over clip, frequently in tandem with societal alteration. In the 1920 # 8217 ; s and 1930 # 8217 ; s, homosexualism was treated as a condemnable discourtesy, punishable by imprisonment. That attitude began to alter in the early 1940 # 8217 ; s, when homosexualism came to be viewed as treatable mental unwellness. As the state prepared to come in World Wa R II, military leaders consulted head-shrinkers on the issue of homosexuals and tribades. In 1943, head-shrinkers helped them compose ordinances that barred cheery people from military service. It was non until 1973 that the American Psychiatric Association announced that it no longer classified homosexualism as a mental unwellness. In 1950, those ordinances officially became portion of the Uniform Code of Military Justice. Article 125 of that jurisprudence, an anti # 8211 ; sodomy legislative act, prohibits unwritten or anal sex by any service members. During the 1950s, at the tallness of concerns over the spread of Communism around the Earth, military leaders began to see cheery people as # 8220 ; security risks. # 8221 ; It was believed that foreign powers could more easy turn homosexuals and tribades against their state than straight persons since threatened revelations about their personal lives could be used to blackjack them. The 1960s and 1970s proverb progressively rigorous policies enacted against homosexuals and tribades, although in rare instances openly gay forces were allowed to function. Prior to World War II, commanding officers had been given broad latitude in make up ones minding whether to dispatch cheery military personnels, leting virtue and good service to be considered. In the decennaries following the war, nevertheless, even as the homosexual # 8211 ; rights motion gained steam in society at big, military policies became more rigorous. Automatic ejection from the forces had become the norm by the late seventiess. In the 1980s, the ejection of known homosexuals and tribades from the armed forces became compulsory. W. Graham Claytor, deputy defence secretary under President Jimmy Carter, saw to it that Pentagon policy stated that # 8220 ; homosexualism is incompatible with military service. # 8221 ; In 1982, that statement was incorporated into a presidential directive mandating homosexuals # 8217 ; dismissal. Throughout the 1980s, concerns about the spread of AIDS further solidified some military leaders # 8217 ; resistance to leting cheery people to function. The directive remained in topographic point until 1994, when it was supersede by the # 8220 ; wear # 8217 ; t inquire, wear # 8217 ; t state # 8221 ; policy. Between 1980 and 1990, the armed forces discharged an norm of 1,500 service members yearly because of their homosexualism. Defenders of the # 8220 ; wear # 8217 ; t inquire, wear # 8217 ; t state # 8221 ; policy argue that the military must make what it needs to keep the strongest possible contending force. In order to transport out that duty, they say, military leaders must hold the authorization and discretion to put regulations as they see fit to maintain up morale and maintain order. On the issue of cheery people # 8217 ; s service, they say, if military commanding officers maintain that leting homosexuals and tribades to function openly would be damaging to morale and train, so tribunals and public should esteem that determination. Defenders of the prohibition and of the military # 8217 ; s current policy difference the impression that military forces should be afforded the same constitutional protections as civilians. Policy protagonists maintain that the armed forces is a alone establishment with its ain set of regulations. Oppositions of the current policy believe that while the armed forces may hold a particular position in society, tribunals still can non allow it to go against the Constitution. Many homosexual # 8211 ; rights militants and other perceivers view the issue of the intervention of homosexuals and tribades in the military as one of clear # 8211 ; cut favoritism. As the state largest employer, they say, the armed forces should non be allowed to know apart against people based on sexual orientation. Furthermore, they say, the military serves as a symbol for the remainder of society. If the federal authorities itself discriminates against homosexual people, they say, that sends a powerful message to other employers and to society at big I # 8217 ; ve discovered in making this study that some resistance to gay people # 8217 ; s military service is based on moral concerns. I feel that many people believe that homosexualism is incorrect and do non desire the federal authorities to look to excuse it by leting homosexuals and tribades to function openly. Some perceivers point out that homosexual people have non yet been to the full accepted and integrated into society at big. They say that inquiring the armed forces to accept homosexuals and tribades is merely inquiring excessively much.