The Effects of Mouthwash on Pea Seeds Germination Essay Example for Free

The Effects of Mouthwash on Pea Seeds Germination Essay Purpose: The purpose of the pea seeds germination lab is to determine whether pea seeds will sprout with the absence of a complete water solution and replaced by Listerine Mouthwash. Water is the most basic and useful, natural resources for all living things. Water is extremely responsible for carrying all life functions within the cell. Life cannot exist on earth without the presence of water. In this lab we will investigate to see if seeds can germinate with a substance which its inactive ingredient is water. Since seeds require water in order for its embryo to rise up, one may conclude that mouthwash which contains a small regiment of water molecules can indeed provide for the environment of seed germination. One concept that will also be determined is whether a dormant seed can sprout under a fairly good temperature, the right amount of oxygen, and a mouthwash solution. In this lab, the experiment will distinguish whether a seed would sprout meeting only some of its requirements. Another purpose that will be examined is the mutual effects of germinating seeds in mouthwash. The seeds’ tendency to respond to their environment will also be put into account. The discovery of how seeds will react in a water solution and a mouthwash solution (shape and color) will definitely be seen throughout the experimental lab. To determine how the seed may change its shape or its color there must be thorough evaluations made upon the seed’s appearance. HYPOTHESIS: After examining some of the key aspects in which seeds must adhere to in order to go through the process of germination one can state a proposed idea that seeds will not sprout within a Listerine Mouthwash solution. After acknowledging the fact that pea seeds are very specific in their type of environment that they need to germinate, there is no way in which the seeds will sprout in abnormal conditions. The act of germinating seeds in mouthwash will cause the seeds to remain or become dormant, the seed’s resting stage. In a more detailed description of why mouthwash would not be the best solution for the seed to absorb during the process of seed germination, is that the chemicals found in mouthwash like menthol, methyl salicylate, and etc. can cause harmful effects on the seed’s ability to sprout. These harsh chemical reactants can produce havoc within the cell’s interior. Mouthwash may also cause the endosperm to remain inside the seed which will make the seed very resistant to germinate. METHODS/PROCEDURES: In the beginning of the experiment, pea seeds were used in order to perform the experiment. It was extremely important to acquire good, dry, and viable seeds so the process of germination could occur. A handful of these healthy seeds worked best in assisting the experiment. The seeds ability to germinate was a vital information needed to determine the outcome of the experiment. The second step of the experiment was to soak the seeds in water overnight. This action was made to prepare the seeds for germination and making them more softer and less rigid. The seeds were placed in a bowl and were covered by tin foil. It was set up on the refrigerator to minimize any outside interference that may come to it. After a full night of absorbing the water, the seeds were ready to start the next stage. The third step that was taken was germinating the seeds. Two sets of paper towels were used to germinate the batch of seeds. The handful of seeds were split into two groups, one being the controlled group and the other being the experimental group. One of the paper towels were soaked in 3 tablespoons of water and the other was soaked in 3 tablespoons of Listerine Mouthwash. The amount of each solution remained the same in order to have a controlled experiment in which any changes that occurred in the dependent variable could be traced by only the independent variable. Having different measurements of quantity can affect the outcome. To make sure that a group of seeds did not have a difference in the amount of solution added, measuring them was very vital. The seeds that were labeled as the control treatments were placed on the towel soaked in H2O. The second batch of seeds labeled as the experimental group was placed on the towel soaked in mouthwash. Then, after that, the two towels with the seeds in it were folded and placed in separate zip-lock bags. The two zip lock bags sat on the dresser of my room for weeks. Having the seeds in a nice and warm temperature is better than, having them in an extreme temperature range that would hurt the seeds tremendously (seeds are very particular in the kind of environment they are in). In the first six days, the number of seeds that sprouted was accounted for in each bag. Another problem I accounted was knowing if all the seeds remained in the â€Å"seed sandwich†. Perhaps one seed could have dropped to the floor. To overcome this problem, I had to count and make sure that the amount of seeds were still there from the previous day. This was the entire procedure conducted. OBSERVATIONS/DATA: Throughout the six days of experimentation, the two batches of seeds were showing extremely different outcomes. Their response toward the water solution was different from their response toward the mouthwash solution. The seeds that germinated with water responded positively. The seeds germinated in Listerine Mouthwash responded negatively. On day 1, the seeds in a water solution sprouted. Little hypocotyl structures emerged from the seed coat, which showed signs of germination. About a centimeter long, 21out of 27 seeds germinated with their little, tiny structures sticking out. At the edge of the hypocotyl was a thin leafy structure known as the radicle. The seeds germinated rather quickly in just a day. Unfortunately, the seeds found in the mouth wash solution did not sprout at all and still held its green, brownish color. On day 2, the seeds’ stems grew longer. Their radicles extended a little longer like over 1 cm. This time, 24 out of 27 seeds germinated. The seeds in the mouthwash solution did not sprout at all. None of the seeds showed any signs of germination. One thing was quite weird during my last trial. Signs of shedding appeared in the seeds found in the mouthwash solution. One seed seem to be stripping its coat off. This observation showed up in only one of the trials, therefore it probably happened by chance. Both groups of seeds received nearly the same amount of that specific solution, which showed that the controlled group did not get a greater advantage over the other group. On day 3,the stems grew longer in the controlled group and the same outcomes remained in the experimental group. On days 4, 5, and 6, the seed grew accordingly. Their radicles became even longer with their bright green appearance. The seeds were fully germinated and ready to be put in the soil to germinate.

Essay --

Philip Covarrubias Covarrubias 1 Fire 100-30 Friday 1300-1550 12-06-2013 Communications Center My name is Philip Covarrubias, and I’m going to be talking about the communications center. The Communications center, a facility where dispatchers work, is the place where most emergency agencies receive 9-1-1 calls for emergency assistance, such as the fire departments, police departments, and EMS agencies. There are many communications centers throughout the United States and in other countries. In the United States, they are divided by counties. Depending on how large the county is, it will determine how many facilities will be running. In every communications center dispatchers work with a computer system called computer-aided dispatch (or CAD for short). Dispatchers started working with these computers in the early 1970’s, and as they became more known, agencies began adopting theses computers. The function of the CAD system, using the enhanced 9-1-1 system, is to quickly find the lo...

Anti Terrorism: Within India Essay

The Prevention of Terrorism Act, 2002 (POTA) was an anti-terrorism legislation enacted by the Parliament of India in 2002. The act replaced the Prevention of Terrorism Ordinance (POTO) of 2001 and the Terrorist and Disruptive Activities (Prevention) Act (TADA) (1985–95), and was supported by the governing National Democratic Alliance. The act was repealed in 2004 by the United Progressive Alliance coalition. The bill was defeated in the Rajya Sabha (the upper house) by a 113-98 vote,[4] but was passed in a joint session, as the Lok Sabha (lower house) has more seats. It was only the third time that a bill was passed by a joint session of both houses of parliament.[5][6][7] Contents [hide] * 1 Purpose * 2 Repeal * 3 Prominent POTA cases * 4 See also * 5 References * 6 External links [edit] Purpose The act provided the legal framework to strengthen administrative rights to fight terrorism within India, and was to be applied against any persons and acts covered by the provisions within the act. It was not meant as a substitute for action under ordinary criminal laws. The act defined what a â€Å"terrorist act† and a â€Å"terrorist† is, and granted special powers to the investigating authorities described under the act. To ensure certain powers were not misused and human rights violations would not take place, specific safeguards were built into the act.[8] Under the new law, a suspect could be detained for up to 180 days without the filing of chargesheet in court. It also allowed law enforcement agencies to withhold the identities of witnesses, and to treat a confession made to the police as an admission of guilt. Under regular Indian law, a person can deny such confessions in court, but not under POTA.[9] [edit] Repeal Once the Act became law, many reports surfaced of the law being grossly abused.[10] Claims emerged that POTA legislation contributed to corruption within the Indian police and judicial system,[11] and human rights and civil liberty groups fought against it. The use of the act became one of the issues during the 2004 general election. The United Progressive Alliance committed to repealing the act as part of their campaign. On October 7, 2004, the Union Cabinet approved the repeal of POTA.[12] NDA and other parties condemned this act of publicity. NDA asked UPA to introduce the Act again, but Congress criticized it and did not pass the Act. In November 2008, after the attacks happened in Mumbai, Narendra Modi and Lal Krishna Advani accused UPA government for not passing the Act, which would have prevented the attacks.[citation needed] Activists supported to BJP government for this. [edit] Prominent POTA cases * Vaiko, a prominent Tamil politician, was controversially arrested under the POTA for his support to the Liberation Tigers of Tamil Eelam.[13][14] * S.A.R. Geelani, a lecturer at Delhi University, was sentenced to death by a special POTA court for his alleged role in the 2001 attack on the Indian Parliament. He was later acquitted on appeal by the Delhi Bench of the High Court on a legal technicality.[15] * Syed Ali Shah Geelani, the leader of the Jamaat-e-Islami group, arrested under POTA.[16][17] * Raghuraj Pratap Singh, a.k.a. Raja Bhaiya, a Member of the Legislative Assembly of Kunda, India was arrested on the orders of then Chief Minister, Mayawati Kumari. He was sent to jail under POTA.[18][

The Effects Of Oil Spill In The Marine Ecosystem

These components affect living organisms in many ways. Some of the soluble components and emulsions are poisonous, particularly to small organisms that do not have protective coverings or shells- Fish larvae, single celled algae and many kinds of plankton are vulnerable and these are the basic foundation of the marine food chain. In shallow water these toxic substances may directly kill algae, coral and sea grasses.These components may also be passed in the food chain or directly ingested or absorbed through the gills of fish and other larger marine organisms. The effect may be to kill the animal or contaminate its tissues. A thick film of oil on the sea surface may reduce sunlight penetration and reduce photosynthesis. Small particles and emulsions may be ingested or block the feeding mechanisms of invertebrates such as oysters, starfish, sponges and corals. These particles also may have toxic components, so the effects can be physical, chemical or both. The most dramatic impact of oil spills is the coating of larger animals with oil. Animals that breathe at the surface like dolphins, sea turtles and manatees may inhale oil and toxic vapors. Sticky oil may also coat their bodies. Coating with oil is particularly devastating to birds. Even a thin coat of oil compromises the waterproof quality of feathers, causing the bird to become water logged and loose heat. Animals, like some sea turtles, that feed at or near the surface may ingest tar balls and particles that then physically blocks their intestines and may be toxic as well.At the shoreline, shallow waters and coastal estuaries and marshes, the impact of the layer of oil, floating and suspended emulsion and particles can be devastating, coating plants and benthic animals like corals, crabs and shell fish, preventing photosynthesis and breathing and blocking filter feeding mechanisms. These materials become mixed into shoreline sediments and remain in the system for years. ‘Dispersants’ are deter gent like substances that can be applied to an oil slick and accelerate the emulsification, break-up into particles and dispersion of the thick oil. This limits the spread and the distance that a slick moves.However it is important to recognize that the oil does not go away- its all still there, just in the form of smaller particles and emulsion that is less mobile. In addition, dispersants may also be toxic or have deleterious effects on the natural environment, particularly on small single celled organisms. System recovery.Despite these gloomy predictions, the effects of oil spills are not permanent and complete. Marine systems show remarkable resiliency and as the oil becomes sequestered in less active forms (tarballs, buried oil etc.) and is broken down by sunlight and bacterial action, the systems recover. Survivors reproduce and recolonize habitats. Some creatures adapt to tar and oil covered substrates and some crabs and mollusks actually eat the tar and the bacteria and fung i growing upon it, and aid its degredation. The oil in its several forms is dispersed, diluted and broken down until only small pockets and particles remain.Marine systems are by their very nature open- that is connected by the sea, wind and currents to distant uncontaminated regions. Many marine organisms have mobile life phases(floating eggs, larvae) that recolonize and re-establish populations. Some of the creatures affected by a spill also routinely suffer catastrophic mortality from other causes (e.g. some colonial nesting seabirds) and are well adapted to recover. Large mobile animals like sharks, sea turtles, large fish and whales that moved away from the spill move back. Although there may be significant mortality of some of these animals, overall the impact on their populations is usually not permanent.In the well studied cases in the Arabian gulf, Alaska (Exxon Valdez) and English Channel (Torrey Canyon), the appearance of the system returned close to normal within a few y ears. Although there was still oil and tar present in the sediments, and continuing effects among the organisms there was visible recovery of major parts of the system (seagrass beds, rocky intertidal habitats, coral reefs).With the passage of time, approximately a decade or so, and rebalancing of ecosystem and the creatures living in it, the system continues to function and returns to productivity, fisheries recover and many of the organisms are restored to their previous abundance. While such widespread intense disruption may causes changes in the balance of nature- which species are present and how numerous they are- nature itself survives. Although such catastrophic events are very damaging and economically expensive at a human scale, on an ecological time scale they are passing disruptions and on an evolutionary timescale, barely perceptible.Ecosystem effectsClean up efforts have included unprecedented amounts of chemical dispersants,  which are used to break up oil slicks. A lthough detailed effects of the chemical dispersants on wildlife and ecosystems are not well studied, the chemicals used are toxic to a variety of organisms, and they have never been previously used on this wide a scale. Because dispersants break oil up into tiny droplets, marine biologists fear that fish larvae, zooplankton and filter feeders (such as oysters), will be at risk from eating the large quantities of â€Å"non-visible† oil.Chemical dispersants are likely to impact deep-water animals downstream of the well. Oil will likely reduce the amount and health of all prey species, reducing the food available for marine mammals, seabirds and sea turtles. Plankton is the foundation for nearly all life in the Gulf of Mexico (and the ocean), and they will most likely be affected. Contaminants from the spill and the dispersants are likely to concentrate in the upper food chain, affecting whales, dolphins, birds and sharks. FishesScientists have observed fish species moving into near-shore areas with less oil contamination, indicating that they may be fleeing significant habitat impacts in deeper waters. The Gulf is a breeding ground for bluefin tuna, and the oil spill coincides with egg production. Larvae of tuna and other fishes eat anything they see in the water, including oil droplets. Studies on a variety of fish larvae suggests that ingestion of both oil droplets and dispersants causes adverse effects, including mutations, physiological problems and increased mortality.BirdsSeabirds get covered with oil while diving into oily waters to fish. The birds may ingest oil when they eat prey that is covered in or has ingested oil. Once birds are covered with oil, they have difficulty flying, or are completely unable to fly, making feeding and getting away from predators impossible. Many species of birds, including the brown pelican (just taken off the endangered list) face threats from the oil spill on the coastal islands and wetlands of the Gulf that they use as rookeries. Birds’ eggs are getting covered in oil, and the birds are deserting their oiled habitat, leaving their eggs behind.Oil pollution is one of the most serious environmental problems in themarine  environment. Episodic pollution events, such as catastrophic oilspills; in particular, threaten water quality and habitat with a suddenness andseverity rarely matched by other pollutants. Catastrophic spills typicallyresult from transportation accidents such as collisions or groundings of oiltankers.Most oil pollution stems from non-catastrophic events, however, and occursmost frequently during cargo transfer operations. In fact, of the 3.5 Milliontons of oil that ends up in the ocean every year worldwide, only a small percent is a consequence of tanker spills. About 70 percent of oil Pollution isdue to chronic pollution from municipal and industrial wastes or run off,dumping of waste oil, release of oily bilge water, and from other-than-tanker transportation.Whatâ⠂¬â„¢s an oil spill?Oil spills happen when people make mistakes or are careless and cause anoil tanker to leak oil into the ocean. There are a few more ways an oil spillcan occur. Equipment breaking down may cause an oil spill. If theequipment breaks down, the tanker may get stuck on shallow land. Whenthey start to drive the tanker again, they can put a hole in the tanker causingit to leak oil

The Grim Reality of the United States Prison System essays

The Grim Reality of the United States Prison System essays The grim reality of the U.S. prison system We as Americans abide by rules imposed on society by past individuals, who believed that society could no longer function in a structured manner without such laws. These laws are what make freedom a reality; even so the price to pay for breaking a law that tarnishes the ultimate goal of society is a price most people, from a mental standpoint can barely survive. The harsh judgment man endures on judging another man is a punishment all in its self. Even so, this does not pertain to violent crime offenders, for nobody deserves to be attacked in such a manner. Regardless, non-violent crimes such as drug offenses need serious adjustment at the national and state level. There is substantially a significant amount of evidence to prove that the current punishment for non-violent criminals in no way contributes to excelling society to a higher intellect, but rather hinders the capabilities of society economically and morally. The American prison system is a system most people try to not thi nk about, why else would the system be in such a debacle as it stands today. Prison, the underworld that stretches deep into the dark depths of the soul, twisting and pulling ones mind into chaos; this wretched feeling is well deserved by violent crime offenders such as rapists, murderers, for they deserve no rights. From an Economic standpoint crime does pay for these individuals. Although non-violent crimes I woefully disagree with, the American prison system is to blame for the hindrance posed on these people; the public could benefit if 10-20 percent of prisoners were under some other form of rehabilitation rather than cold prison time. (Piehl, Dilulio, 20-5) The entire Economics of the prison system is as confusing as the laws written for people to get in there. The New Jersey prisoner self-report survey, show that the average violent crime prisoner costs, twenty five thousand dollars a year to impr...

Critique a Research Article Paper Example | Topics and Well Written Essays - 1250 words - 1

Critique a Article - Research Paper Example The author further puts forward questions for research regarding the symptoms that are associated with acute kidney injury. The author is trying to put forward that the nurses should know about acute kidney failure and the causes of it. The early signs should be detected by the nurses and they should intervene at the right moment to help it not progress towards end stage renal disease. The author gives the necessary signs and symptoms leading to it along with the steps that a nurse should take when intervening. Hypothesis The author proposes that acute kidney failure can be prevented by experienced nurses who have the necessary knowledge in intervening during the course of the injury. The author put forward a real case of a patient who developed acute kidney injury but she did not progress to chronic renal failure because the nurses intervened at the right time. Evaluation Author provides a literature review by highlighting the main points of acute kidney injury and the mechanisms in volved. She further uses research to strengthen her hypothesis. The author has used recent literature review to prove her hypothesis and she has complemented the research with a real life example of a patient suffering from Acute Kidney Failure. I believe that the article in all ways is relevant to the current health issues and problems faced by nurses in handling such cases. The mortality rate of the patients with acute kidney injury have increased in the recent past and such an intervention as laid down by the author can certainly decrease the risk and help in decreasing the mortality rate as well. Â   The author has utilized a case study as she already has selected a patient and the nurses have intervened at the right time to avoid the serious consequence of chronic renal injury. The sample selected for this article was only one and it was in co-relation with the topic as the author selected an individual with the injury only. The sample was hence appropriate for the research ar ticle. This work has been crafted by the author by selecting an individual who seemed to be suffering from the disease that the article is referring to. The author has made this research more practical by laying down the nursing intervention techniques. I believe that is practical and applicable in the real world because the nurses can play a great role in intervening of the progress of acute kidney injury to chronic and avoid mortality. The author has emphasized on the role of nurses to understand the risk factors and diagnostic criteria for acute kidney injury. The relevant nursing assessment that is required to be done on the patients has been emphasized by the author. These factors would help nurses to identify the patients who are at risk of developing acute kidney failure. I believe, the application of this research in the real life is possible only if nurses are trained to handle such cases. However, in this research only one such case was analyzed by the author and hence it cannot be concluded with certainty that it would be applicable to all cases in different situations. Moreover the author does not include training programs for the nurses to carry out the relevant intervention with the patients who are suffering from the disease. I believe that the nurses should be trained properly along with the knowledge of the intervening techniques when it comes to the patients of acute kidney

Media and Society Essay Example | Topics and Well Written Essays - 3000 words

Media and Society - Essay Example The researchers used a survey sampling method and a panel design technique in which the same samples were observed at different points in time (Lowery and DeFleur, 1983) . Locational parameter was in Erie County in Ohio because it was culturally homogenous with a population of 43,000 being stable for 40 years. The people living in Erie County were all white and the farmers and the industrial labor force were evenly distributed. Thus, this would help in classifying the respondents. It was also relevant that the tri-media were present; 3 newspapers, 2 radio stations and all major network channels were represented. Importantly, Erie County had the record of deviating a little less from national voting pattern as far as the twentieth century was concern. During the study, there were 3,000 sampling respondents, 600 persons each for 4 stratified samples referred to as "panel" and 600 persons each also for the 3 control groups. Panel and control groups were used as there were qualms that th e process would greatly affect the results which eventually turned out to be the otherwise. There were several influential factors that could affect voters of Erie County and that included political index, religion, demography, socio-economic status and cross pressures among all others. There were three main patterns of change in cross pressure voting. According to the study, 28% were crystallizers (Lowery and DeFleur, 1983). They changed vote up to the last minute. On the other hand, 15% were waverers. Waverers were those whose decision pattern was like a wave. They started out with a clear decision then during the campaign period slowly changing sides but then later vote on their original choice. Finally, the party changers were self-explanatory and composed 8% of the samples. Cross pressure votes were simply a delay of the final decision of the voter. As such, potential voters whose low interest in the campaign and the cross pressure voters became media campaign targets. The challenge with media-mediated campaign was how to effectively deliver the message that a certain candidate was way far better than the others. The problem also lies on media exposure. How well-spread was the exposure. Surprisingly, radio comprised 50% of those surveyed when asked about the most important source of political information (Lowery and DeFleur, 1983). The media however, was a big contributor in political campaigning through three major patterns of influence; activation (awareness), reinforcement (continuing justification) and conversion (switch sides through persuasion). The two-step flow of communication stated that ideas and arguments would from the media to the opinion leaders then finally to the less active portions of the population. It was emphasized in this chapter the importance of mass media in influencing the voting behavior of the people. There maybe other factors that can affect any individual's vote but media-mediated campaign can greatly affect voter's decision up to the last second of the election period. Therefore, with all these political propaganda and strategy using mass media, Franklin D. Roosevelt won the political race. Chapter 5 Audiences for Daytime Radio Serials: Uses and Gratifications In the late 1930's, America