Sunday, March 22, 2020

Genetically Modified Food Essays - Molecular Biology,

Did you know that we?ve been eating genetically modified foods for the past 10 years? It?s in about 70-75% of our nation?s food. Our food supply has greatly improved. Today we are going to find out what is genetically modified foods. Genetically modified foods are foods that have been engineered in the laboratory. They are improved in many ways. In the first part of my speech I will talk about the genetic modification technology in food and agriculture, locating improvements. In the second part I will include a debate about food safety, consumer attitudes and other concerns. Newspapers frequently carry stories about genetically modified food. The biotechnology agricultural age is occurring. Scientists had an idea to make food have better appearance, growth, and taste. In genetic engineering you take the best food available and add the few characters you are interested in so that you?re breeding efficiency is increased. Genetically modified foods are boosted in nutritional value, and can be more disease-resistant, flavorful, or cheaper than natural foods. For example, plant breeders have turned the wild potato into the wide varieties that we can buy. The varieties of potatoes are different from their cousins. After years of searching scientists were able to find a way to change their genetic modification. They figured out a way to change DNA from organisms. The hope is that this biotechnology will have perceived benefits. Agricultural practices have to change unless we want to risk facing a major shortage of food. The food we eat can threaten our lives and has the potential to affect our health Genetic engineering is really a radical revolution in food production. Genetically modified foods were first put on the markets in the early 1990s. Today agriculture is going far beyond nature to produce new miracles or an even better more abundant life. On the farm today, wherever you look you see the handiwork of scientists. Genetically modified foods are the result of a miraculous agriculture. . Searching for new ways to eat? We all have to eat in order to live. Want to eat new wonder products? Want food that is safe and of high quality? If you move beyond your comfort zone you can eat genetically modified foods. The twenty first century faces choices in genetically modified foods. Genetically modified foods use technology to alter the genetic makeup of organisms. Genetically modified foods have their DNA changed artificially. It makes the food more useful or edible. It involves the insertion and deletion of genes. Using molecular biology techniques, in what is undoubtedly the most potent technology the world has ever known, the food is exposed to radiation or chemicals to modify the organism. This involves inserting genes into the cells of a plant/animal/microbe to give a desired characteristic. It enhances food value and quality in ways that you don?t normally encounter. Food has its genes altered to introduce useful production or flavor characteristics. Food becomes resis tant to disease, stays fresh longer, improved in clarity, improved in size and high in proteins and vitamins. Want to see foods that would never occur in nature? Genetic engineering creates new organisms. Genetic engineering can be used to make products such as foods, food ingredients, medicines and vaccines. A lot of the food we eat today contain genetically modified ingredients. Today, Australia is stalling over whether to embrace genetically modified foods, but we won?t be able to put off the decision for much longer. The public generally supports the use of genetically modified foods. The more they embrace this unique technology, the more it?s going to be used. Technology is getting better, new molecular and genetic techniques will make genetic engineering even more precise. According to the US Food and Drug Administration many of the foods that are common in our diet are obtained from plants and animal varieties that were developed using conventional genetic techniques of breeding and selection. Genetically engineered organisms are everywhere. Things like soy and corn are in so many products. In fact if you eat food from a restaurant or a supermarket, you?re probably eating GMOs. In 1992 the Food and Drug Administration said that GM foods are not inherently dangerous and they really didn?t see any risk at all associated with it. The

Thursday, March 5, 2020

At School I Have Been Bullied by a Teacher

At School I Have Been Bullied by a Teacher Hashtag: #EnElColegioTengo (At school I have) Why Some Teachers Crossed the Line? A 14-year old girl in her second year of high school was yelled at, humiliated, and sent out of the room by her well-experienced male science teacher for simply asking stupid questions. Teachers who bullied their students, according to study, were mostly new teachers overwhelmed by frustrations or tenured teachers who were very set in their ways and unwilling to change their traditional coercive teaching practices. A few instances of accidental coercive reaction due to lack of experience and frustrating students’ behavior may be acceptable for new teachers but the bullying male science teacher is a veteran teacher. One explanation is the fact bullying behavior is rooted in personal values, ingrained, and consistent with the way a person understands the world. Since the behavior of tenured teachers served them well in the past and in fact earned them their current position and authority, they see themselves as superior, arrogant and unsympathetic towards â€Å"inferior† students. Study of bullying teachers shows that regardless of frustration or student’s positive behavior, teachers who are more senior, tenured, and experienced teachers routinely practiced bullying behavior. These include habitual utterance of offensive or suggestive language, derogatory or degrading remarks, get involved in coercive sexual behavior, racist and sexist comments, embarrassing, threatening, and intimidating remarks. Moreover, regardless of their position and authority, they engaged in spreading false rumors in an attempt to discredit and socially isolate an individual. Is There a Cure for Teacher’s Bullying Behavior? Connecting with students in both personal and professional manner is often very challenging. The study shows that teachers who cannot control a student displaying negative behavior in class often engage in power struggle until they become frustrated and respond with bullying. For this reason, it may be helpful for teachers to avoid engaging in the power struggle with aggressive or irritating students. Some of the recommended strategies to avoid power struggle is to build a positive relationship with students through caring concern, constructive feedback, and respect. For example, teachers communicating respectfully, paying attention to students concern, acknowledging those with positive behaviors, working with each student to address behavioral problems is unlikely to get negative responses from students. In contrast, those who used force and engaging in the power struggle, make a public scene of a student’s negative behavior, and taking it too personal often form the negative relationship, increased the potential for burnout, frustration, and bullying behavior. The above recommendations are clearly not inapplicable to â€Å"superior† tenured teachers who in a way value their deeply rooted unethical teaching practices. Since the principal in practice avoids dismissing these senior bullies, some of them were reassigned to non-teaching positions where cannot harm students. Other less senior bullies, probably those with potential for change, were sent to some sort of anti-bullying programs aimed at changing their culture, attitudes, feelings, and behavior. In preventing tenured teachers’ bullying, some programs encourage teaching and non-teaching staff to report a teacher bullying a student. Others conducted a student empowerment session aimed at balancing the power inside the classroom. This program in practice promotes awareness of bullying behaviors and their consequences and eventually developed respect between both parties.