Fermentatiom By Yeast :: essays research papers

Fermentation of glycine, water, sucrose, galactose, and glucose as induced by yeast. ABSTRACT This lab attempted to find the rate at which Carbon dioxide is produced when five different test solutions: glycine, sucrose, galactose, water, and glucose were separately mixed with a yeast solution to produce fermentation, a process cells undergo. Fermentation is a major way by which a living cell can obtain energy. By measuring the carbon dioxide released by the test solutions, it could be determined which food source allows a living cell to obtain energy. The focus of the research was to determine which test solution would release the Carbon Dioxide by-product the quickest, by the addition of the yeast solution. The best results came from galactose, which produced .170 ml/minute of carbon dioxide. Followed by glucose, this produced .014 ml/minute; finally, sucrose which produced .012ml/minute of Carbon Dioxide. The test solutions water and glycine did not release Carbon Dioxide because they were not a food source for yeast. The results suggest that sugars are very good energy sou rces for a cell where amino acid, Glycine, is not. INTRODUCTION   Ã‚  Ã‚  Ã‚  Ã‚  Fermentation is an anaerobic process in which fuel molecules are broken down to create pyruvate and ATP molecules (Alberts, 1998). Both pyruvate and ATP are major energy sources used by the cell to do a variety of things. For example, ATP is used in cell division to divide the chromosomes (Alberts, 1998). By taking a Carbon Dioxide, rich substance and mixing it with a yeast, solution fermentation will occur, and then it could be determined if it is a good energy-producer. In this study glacatose, sucrose, glycine, glucose, and water were used to indicate how fast fermentation occurred. The overall result shows that monosaccharides in particular galactose and glucose were the best energy source for a cell. Materials and Methods There were five test solutions used in this experiment, water being the control, which were mixed with a yeast solution to cause fermentation. A 1ml pipetman was used to measure 1 ml of each of the test solutions and placed them in separated test tubes. The 1 ml pipetman was then used to take 1ml of the yeast solution, and placed 1ml of yeast into the five test tubes all containing 1 ml of the test solutions. A 1ml graduated pipette was placed separately in each of the test tubes and extracted 1ml of the solutions into it. Once the mixture was in the pipette, someone from the group placed a piece of parafilm securely on the open end of the pipette and upon completion removed the top part of the graduated pipette.

Youth obesity

Game consoles, MacDonald's, KFC, all companies that provide entertainment and fried foods for kids are the main causers of the growing number of children becoming obese. These companies are so prevalent on today's youth's lives that they make a profound impact on their health. With the rate that these companies are expanding worldwide, the rate at which children are becoming obese is bound to become even worse. Every corner you go around especially in America you will find a fast food restaurant. This is the main reason why America has the highest youth obesity rate. During the past 30 years the percentage of obese children between the ages of 6 and 11 has tripled. It is amazing is it not all we have to do to change this is adjust our food intake and watch our daily activities so I ask of you to join me and change for the better of our own lives. There are three causes of youth obesity that stood out from the rest for me. These are poor nutrition, low self esteem and a less – active – youth. Eating healthy means taking a lot more time to prepare a meal and it costs more than a readymade, extremely fast, unwatched while being cooked and full of oil fast food meal. A lot of parents are not educated with what is right for their children to be eating. So they leave their children to enjoy what they like instead of having a balanced diet. Children's self esteems lower when they are obese because of society's influences on being thin. As they get more obese their social interactions with other youths decrease because of this influence. Now the low self esteem that develops leads to children no longer being around others thus making them become less active which helps to make children even more obese. A study performed by Research Triangle Institute International for the Centres of Disease Control in Washington, DC surveyed 986 parents on childhood obesity and prevention. The results were as follows 49.5% did not feel schools had the right to record children's weights. 72.9% felt that schools needed to provide weight loss and exercise programs. 39.1% thought an increase on the tax of fast food was constructive. 42.31% favoured the standardization of food portions in restaurants. You must be thinking that to stop obesity means we just have to remove fat from our diets. But you would be wrong stopping obesity does not just mean removing fat from your diets. Usually when people remove fat from their diet they will increase their intake of sugar, high density carbohydrates, and starches. This means you are having a low protein and fat meal which often leave people feeling hungry which leads to them filling their stomachs as soon as possible with whatever they can find to eat. That is wrong. You need to have and stick to a balanced diet. Most of us eat 3 large meals, breakfast, lunch and supper. That too is wrong. You need to eat six small meals and your last meal should be eaten at least two hours before going to sleep to allow for you to burn all fat and energy from the meal. This information was given to me by an actual dietician from CFB. Coming back to the topic of game consoles and I would like to add into that topic television. The question is, is television a friend or foe of youth obesity is what I shall answer for you. Every hour a child sits and plays a video game or watches TV they may double their risk of becoming obese. Glenda Nichols, Assistant Professor of Psychology at Tarrant County College she stated in an interview that on average a child watches or plays a video games for 7.1 hours a day. That equals to 25,000 hours of being in front of a television by the time that they would be seniors in high school. That is extremely dangerous because children are guaranteeing their chances of becoming obese. Some long term effects of childhood obesity are high cholesterol, high blood pressure, and the development of diseases such as type 2 diabetes. These are all very dangerous for the human body. But these are just a few of the many associated problems. More problems associated with obesity are: 1. Diabetes 2. Hyperlipidemia 3. Blood circulation diseases like arteriosclerosis, high blood pressure, heart disease, and palsy 4. Skin disease 5. Joint problems, back, knee, and ankle pain 6. Liver disease 7. Cholelithiasis 8. Menstrual abnormalities 9. Female infertility 10. Breast cancer 11. Endometrium cancer 12. Decline in libido 13. Mental stress We all live in a society that sends out very strong messages about beauty and body weight. Girls are encouraged to constantly diet and exercise until they attain a fit, thin body. Boys are told to constantly work out and do whatever is necessary to attain a buff, muscular figure. Am I wrong? So come on let's follow the messages society sends to all of us together. I ask all of you to not do it for me but to do it for yourself. You will not forget it especially in the long run. So come on let's get healthy.

Reproductive Technology Essay

Many people dream of having a house, kids and possible a dog, but sometimes that not something they can achieve on their own. Infertile has become a major issue for women that want kids and is increasing for many males. We also have people from the gay and lesbian community that don’t want to adopt but he children of their own. A growing number of unwed single people want kids with having the relationship or marriage stuff that comes with it. Louis Brown was the first successful test tube baby in 1978, which gave many couples hope of their own. Before this occurred many only had the option of adoption however there is now reproductive technology to help with baby making process. My paper will discuss the pros and cons of reproductive technology. With joys of reproductive technology comes many concerns and issue that have been not deemed moral. How will the child be affected by this? Can the couple or person held all of the procedures and things that need to happen? How much will this cost and is it effect? California has already passed a bill that somewhat takes a little control over the situation. The health department has to give detailed document that explains ART and all the drugs, hormones and high chances of having multiple embryos. The physician is also responsible for telling the couple or people that if they don’t follow the rules set for ART it will be consider a criminal violation. All parties involved need to get an explanation of all the risks involved in any process. There are even considering having a lifetime limit of how many eggs and women can sell and collect monetary values for not exceeding $5000. 00. When it comes to ART California has become proactive with situation and others states or countries should follow their leads. Some feel there should also be screening for women age, race, political affiliation, and sexuality. There are many concerns but so little research on the overall affects it poses.

Decision Analysis Tasks Essay

I was asked to provide a distribution pattern that minimizes shipping costs and provides adequate availability and demand. I used transportation modeling to solve this problem. Transportation modeling is â€Å"an interactive procedure that finds the least costly means of moving products from a series of sources to a series of destinations† (Heizer & Render, 2011). This tool is used to determine the best distribution pattern for multiple locations. It is best for this problem because it allows for us to determine how many products can be held at each location to give Shuzworld the lowest shipping costs. The original setup had an optimal shipping cost of $13,600. It had 1300 pairs housed at the Shanghai warehouse. Shuzworld H had 300 pairs in Warehouse 1, 200 pairs in Warehouse 2, and 1800 pairs at Warehouse 3. Shuzworld F had 2200 pairs housed at 1 warehouse. The recommended plan lowered the optimal cost to $13,400. The Shanghai plant will house 1500 shoes in Warehouse 2, with an additional 1300 shoes held in case of increased demand. Shuzworld H will hold 300 shoes in Warehouse 1, 1800 shoes in Warehouse 3, and an additional 200 shoes will be held for increased demand. Shuzworld F will have 2200 shoes held in Warehouse 1. This will allow all of the warehouses to hold enough products to meet current demand, with additional products in short shipping distance. This cuts down on shipping costs as well as time waiting on the production of more shoes. As the market demand increases, additional shoes can be delivered from the holding warehouse. The next task is to find the most reliable machine set up for the computer-driven shoe machine process. â€Å"Reliability is the probability that a machine will function properly for a specified time† (Heizer & Render, 2011). In order to provide reliability, it is critical to provide backup systems for all computers. When operating computers fail, production can be slowed, or stopped altogether. The initial system had an overall reliability of 76%. There was no backups for any of the machines. Machine  1 had a reliability of 84%, Machine 2’s reliability was 91%, and Machine 3 had a reliability of 99%. The first possible setup, and ultimately the recommended setup, was to backup Machine 1. This led to an overall reliability of 84%. Backing up Machine 2 only gave a reliability of 82%. Backing up Machine 3 only gave a reliability of 76%. Therefore the recommendation is to backup Machine 1 and increase the reliability to 88%. The next task is to provide the optimum number of shoelaces to order, using appropriate cost balancing. The economic order quantity (EOQ) is the order amount that allows for an optimum level of materials at the lowest cost possible. There is a demand ofr 300,000 shoelaces per year. The setup cost is $125 per order. There is a $.10 holding cost per unit. The optimal order quantity recommended is 27,386.13 shoelaces per order, with a maximum inventory of 27,386.13. This means that we will order just the amount of shoelaces needed to fulfill current production orders. The average inventory is 13,693.06 shoelaces. There will be approximately 10.95 orders per year. The annual setup cost is $1,369.31, and the annual holding cost is $1,369.31. This makes the total cost per year $2, 738.61. This decision tool allows us to calculate the correct amount needed per order to ensure that we are lowering operating and holding costs, while keeping production properly stocked. The last task was to determine if Shuzworld would benefit from a one-cashier or two-cashier waiting line system. There is typically an average of 6 customers being serviced at any given time. There is typically a customer being services every 5 minutes, so the service rate is 12 customers per hour. One server is typically busy 0.5 of the time. There is usually 0.5 customers in the queue at any given time. There is 1 customer in the system at one time. This means that a customer spends 0.08 hours (5 minutes) in the store waiting to be serviced. A customer spends 0.17 hours (10 minutes) in the store making their complete purchase. This is too much time for a customer to wait and be serviced. This long wait time may dissuade sales, as customers do not want to wait to be helped or pay for their purchases. Using a two-cashier system is a more efficient option of Shuzworld. The average server utilization is 0.25, meaning that 75% of the  time, there is a server available to help customers. There is 0.03 customers in the queue at any given time, with 0.53 customers being served at one time. This means that the customer spends 0.01 hours (.33 minutes) waiting to be served, and 0.09 hours (5.33 minutes) in the store completing their purchase. This system allows the customers to get into the store, pick out their items, and pay in less than 6 minutes. This will definitely encourage future business with the company. Customers want to have the least amount of time spent in a store, and waiting for service may cause some to leave without making a purchase. This analysis tool allowed us to determine which system would provide the best times for the customers of Shuzworld. References Heizer, J., & Render, B. (2011). Operations Management (10 ed.). Prentice Hall.

NVQ and Competence †Essay Essay

In this supporting paper to the presentation, the purpose, the nature and the advantages and disadvantages of NVQ will be stated and analysed; finishing with a conclusion as to whether to follow a NVQ or not. The definition of an NVQ is â€Å"A statement of competence clearly relevant to work and intended to facilitate entry into, or progression in, employment and further learning, issued to an individual by a recognized awarding body†. A national vocational qualification (NVQ) is a collection of vocational qualifications (previously unstructured), which have been integrated into a single assessment standard. This has been done in order to have a nationally recognised level of academic achievement which enables employees to have a clearer level of each job applicant’s respective competency. Competency can be defined as:- ‘An underlying characteristic of a person which results in effective and/or superior performance in a job’ (Boyatis 1982, p21) Due to the heavy promotion by the Learning Skills Councils, (LSC’s) and the Department for Education and Employment; the majority of vocational qualifications are either part of the NVQ scheme, and in the rare occasion that it isn’t, most commonly when the qualification is of different nature of those offered by the NVQ syllabus, the qualification will have its equivalence identified to its respective, specific, level of the NVQ system in order for those nationwide (familiar with the NVQs) can have more clarity as to where such candidates stand on the level of competency. NVQs have been developed to suit all occupational areas, with each occupational area there are eight levels with the NVQ system to complete to attain ‘full competency’. This is structured in such a way that level one is the most basic and level eight, the most advanced level of NVQ. The ideal situation of training for competence is done by the manifestation of the development of candidates’ abilities to perform the specific tasks which coincide directly with the nature of the job in its respective department, in terms of performance results (grading), with specific indicators. NVQs have originally been developed with the purpose to serve as a reaction to the ‘confetti-scattering’ style of training which is sometimes carried out by some establishments e.g. a company which sends their staff on off-the-job training with just the objective to learn one particular skill. This training style results in the candidates becoming one-dimensional, due to  having a limited knowledge of skills. NVQs have, in fact been developed in order to give these candidates a more rounded knowledge, thus enabling them to be more versatile, efficient in their respective job positions. The design of NVQ has been structured in such a way that in each of the eight levels, there are mandatory and optional roles (or modules); these are comprised of a collection of several units, those of which are to be completed to be able to progress onto the succeeding level. The table beneath can be used in aid to understand the structural layout of each level in NVQ. There are several advantageous principles adopted by the NVQ system. These include:- 1.The NVQ qualifications are open access in the sense that no prior professional attainment or experience, nor qualifications are required, each candidate will be categorised level (1-8) after a means of analysis (be it a test or a review of current skills/ experience currently obtained). 2.The focus-based learning format of the NVQs. Progression from one level to next is based on when the criteria to advance has been met, this can be as quick or long as the individual will take to learn, opposed to other assessment standards where the timescale restricts the learner to learn in its set time. An example of this is that it is impossible to complete a Master’s Degree quicker than in a year. 3.Flexibility is a key aspect of NVQs, as they are not generally attendance based – in conjunction with the focus based learning aspect of the qualification where the learner can take as long/short as they want. This also enables candidates to continue with their respective business demands of their external employment, in conjunction with following NVQs. 4.School Integration is available to the NVQs (GNVQs), this enables candidates to have early access to the hands on approach, which runs alongside other assessment standards (e.g. An alternative run in the same centres as A –levels etc.), thus showing equivalence in value and progression routes, thus giving more viable options to the candidates). 5.Portfolio based work proves to prospective employees that a track record is available showing day to day skills being learnt, thus proving the levels of understanding and competence of each candidate. 6.Prior Accreditation being put into consideration as to which level they will be categorised, enables the candidate to use their  qualifications/experience regardless of where from, as long as relevant (i.e. A-levels, training at work etc., enabling an individual to start in a more advance d level). NVQs also have a few disadvantageous aspects when following their assessment standards, these include. 1.Labour intensive nature of assessment there is a lot of practical work undergone in the NVQs 2.More focus in gaining evidence than actual learning, lack of cognitive learning amongst candidates. As most of the proof (to validate competency level) is done via the production of a portfolio and the presenting of a track-record , this can easily turn into a ‘paper-chase’ rather than the actual focus on the learning processes of the qualification. The also, ‘going through the motion’ nature of the NVQ can also enable the candidate to not be able to reason, simply performing tasks without having true understanding. 3.Quality of assessment can, due to the large numbers of assessors, have a large variance as the marking of each individual can differ. Especially with the different interpretations of some of the jargon developed by the NVQs assessment grading schem es 4.Partial Competence due to selection of optional modules/ reduced definitions and details, as each candidate can choose their modules in the option roles category and each module having different aspects and natures, the candidate may be subject to effectively not gaining an entire knowledge in their respective occupational fields. An example of this would be (referring to table above) where each module has a code which labels the nature of the unit. Take ‘C5’, With C symbolising say, ‘Managing Self and Personal Skills’, one opting out of such a unit, could prove to give them less than the complete set of skills an NVQ could offer, thus lowering competence. To conclude, NVQs are a system devised by the government to help those in various situations, both academically and professionally in order to make them more competent in their respective field in a nationally recognised manner to potential employers. There are a range of advantages and disadvantages to the candidates as well as the employers, such as not having to follow a timescale in learning and also in not receiving a full knowledge due to optional module selection, but as to whether one should be followed  or not, according to the studies that have been carried, out should go hand in hand in the individuals situation.. For instance, one that is currently employed may not be able to dedicate a lot of time to their qualification course, would suit an NVQ whereas, an individual wishing to say, be a medical doctor, a career where having extensive knowledge of their occupational area is vital, would not suit following an NVQ course, where modules are optional and perhaps having re duced knowledge. Bibliography 1.Armstrong,M(2012)Armstrong’s Handbook Of Human Resource Management Practice, 11th edition, Philadelphia: Kogan Page Limited. 2.Hall,L. Taylor,S. Torrington, D. (2008) â€Å"Human Resource Management†, 7th Edition. Pp. 399-407 3.Blosi,W.(2007)An Introduction To Human Resource Management, London: McGraw-Hill Education 4.Marchington,M. Wilkinson, A. (2005) Human Resource Management At Work People and development, London: Chartered Institute of Personnel and Development 5.Lundy,O. Cowling, AG, (1996)Strategic Human Resource Management, London: Routledge

Terrorism Thesis Example | Topics and Well Written Essays - 12500 words

Terrorism - Thesis Example The paper is also interested in exploring the effects of Mumbai attacks on NYPD, and the measures they planned to adopt in order to ensure peace and stability in their respective jurisdiction subsequently. The main objective behind investigating into the topic above-mentioned includes the exploration of the factors behind the rapid expansion of terrorists’ network and subsequent attacks in various regions by the beginning of 21st century, which has resulted into horrifying the world population in such a way that it has accelerated the pace and magnitude of hatred and abhorrence amongst the individuals belonging to divergent religious, racial and ethnic groups and communities of the world against the terrorists on the one side, and their rival groups and factions on the other. The terrorists appeared to be creating differences among the people belonging to divergent groups and communities in order to bring the civilisations against one another in a violent confrontation. A prop ortional increase in the gulf of hatred between the civilisations has also paved the way towards waging of wars at the hands of the US-led politico-strategic alliance against two Asian states including Afghanistan and Iraq in 2002 and 2003 respectively, because of the suspicion with regards to the involvement of two terrorist organisations namely Al Qaeda and Taliban in spreading and promoting terrorism in various countries by establishing their condemnable network in the above-mentioned US-invaded states of Asia. The paper is also interested in studying the motifs behind terrorism and similarities and dissimilarities between the strategies adopted by the police departments of both the countries under-examination i.e. USA and India undergoing the terrorist attacks. The researcher has elaborated the topic under-consideration within religious and historical perspectives. In addition to this, the researcher looks for adopting the content analysis as research method while collecting the informational data for the present study. The data gathered from NYPD and Mumbai statistical bureaus, websites and the national databases will be analysed, tabulated and computed in order to estimate the success ratio of the efforts made by the police departments of both these countries for countering terrorism from their respective motherlands. After the data analyses, interpretation of data will be made for the sake of making suggestions for the future researches to be conducted on the same or similar topics. Chapter 1: INTRODUCTION: Terrorism-- Meaning, Nature and Current Serge in the Modern Era: The term terrorism is rightly stated to be an instrument in the hands of the most frustrated and disappointed individuals of society undergoing the situation of alienation and aggravation because of the social injustices and inequalities prevailing in almost all societies and cultures of the world, carrying different level of intensity and magnitude, generally inflicted upon the lower s ocial stratum and depriving them of their share in the social and natural resources. Terrorism is, according to the US Department of Defence, the calculated use of violence or the threat of violence to inculcate fear; intended to coerce or to intimidate governments or

Natural disasters Essay Example | Topics and Well Written Essays - 1250 words

Natural disasters - Essay Example In the light of this, we shall assess the discrepancies in heads like frequency of these various disasters in two regions of the US, Los Angeles and Oklahoma City and deaths caused by these disasters. Moreover we shall look upon the measures taken by the respective governments for the natural disasters and how it differs. Comparison of rehabilitation process and Insurance coverage aftermath of these disasters in these regions shall also be discussed. The Northridge earthquake occurred on January 17, 1994 at 4:31 AM Pacific Standard Time in the city of Los Angeles, California. The earthquake had a magnitude of 6.7, but the ground acceleration was the highest ever instrumentally recorded in an urban area in North America.(1) Seventy-two people died as a result of the earthquake and over 11,000 were injured. In addition, the earthquake caused an estimated $12.5 billion in damage, making it one of the costliest natural disasters in U.S. history. An earthquake emerged in Sylmar, a surrounding region of Los Angeles and hit the Greater Los Angeles and California caused the fatalities of 67 and overall damage of $ 5, 000, 00,000.(2) About a dozen earthquakes have been felt in Oklahoma City. ... The most notable and largest of these occurred on 1952 April 09. This earthquake was centered between El Reno and Minco in Canadian Co.Its magnitude was 5.50. Moreover an earthquake of a ----------------------------------------------------------------------------------------------------------- 1. Northridge Earthquake Southern California Earthquake Data Center, October 6, 2006 2. abc7. com Anniversary of Deadly Northridge Quake.. 2007-07-08. 2 magnitude 2.2 was felt in scattered locations in Oklahoma City and Edmond and surrounding area. Oklahoma City has faced another earthquake (Oklahoma Earthquake) on 16 December 2001 whose origin time was 08:21:42 UTC/GMT and Latitude and Longitude were 35.643degrees N, 95.571degrees W respectively had its depth 5.0 km. and its magnitude was 2.2 m3HZ (3) Tornado Okalahoma city It's generally defined as the area of the United States in which tornadoes are most frequent. When high frequency of strong and violent tornadoes (F2 or stronger on the Fujita scale) and relative consistency of the season from year to year are used as criteria, tornado alley would include northern Texas, most of Oklahoma, Kansas and Nebraska, as well as eastern portions of Colorado and South Dakota.The tornadoes that hit Oklahoma City and the surrounding area on May 3, 1999, had the fastest winds ever recorded on the planet: 318 miles per hour. The number of people who died from this disaster, were 44.The overall damage was $1, 500, 000,000.(4) Los Angeles With 42 tornadoes, Los Angeles County ranks as the tornado capital of the state, five of which was ranked as