Power Struggles In Society Essays (1801 words) -

Power Struggles in Society Mills, Schudson, and Gitlin show different approaches to society and the role of mass media. Each approach helps illustrate a different focus on society. They each hold special relevance in a discussion of the history of societal beliefs. The Mass Society refers to the overall belief C. Wright Mills held in relation to the type of society he believed we live in. Mills began The Power Elite with a bold statement saying, "The powers of ordinary men are circumscribed by the everyday words in which they live, yet even in these rounds of job, family, and neighborhood they often seem driven by forces they can neither understand nor govern" (Mills, 1956, p.3). This opening sentence helps describe the attitude and beliefs of the entire book. A "power elite" exists in a society that is made up of three spheres. They are divided into economy, political, and military, with the same group of people interchanging between the three. This large group of elite is at the top making all the decisions, while the masses are at the bottom, unaware of the process that molds public opinion. Masses within this view of society are irrelevant and do not have any type of influence. The media functions as an entertainment source, keeping the masses entertained while the elite is taking care of all the important matters. It helps keep the reality and truth of the world obscured from the masses. Mills explained what the media does for the masses as "they distract him and obscure his chance to understand himself or his world, by fastening his attention upon artificial frenzies that are revolved within the program framework, usually by violent action or by what is called humor" (Mills, p.315). This helps illuminate how the mass media guides, tries to control, and manipulates the masses. Mills describes the effect of mass media as "a sort of psychological illiteracy" to the extent that we "often do not believe what we see before us until we read about it in the paper or hear about it on the radio" (Mills, p.311). The masses "standards of credulity, standards of reality, tend to be set by these media rather than by 'the masses' own fragmentary experience" (Mills p.311 ). Mass media's role helps prevent the questioning of the elite. "Families and churches and schools adapt to modern life; governments and armies and corporations shape it; and, as they do so, they turn these lesser institutions into means for their ends" (Mills, p.6). The family into which someone was born or marries into helps improve or decrease their social status. The school where one is educated or the church where one worships also plays a major role in the social standing. Schools teach skills to the masses that enable them to function in society. Institutions shape life and the masses adapt to what institutions create. The masses in the theory are very disorganized and not connected to others. An excellent way to describe to masses can be shown by watching The Twilight Zone movie. It is a state of total confusion for everyone, with each doing their own thing. The elite enjoy the state of confusion with the masses, because they are able to control the major decisions that must be made. They determine the policies and the people enlist in them. In the mass society, the elite control the policies and ways of thinking for the confused masses. Schudson approaches the nature of society in a much different way, through the idea of the democratic society. In Discovering the News, he discussed "an even distribution of income" and described the 1800's as "more people acquired wealth and political power 'bringing' with them a zeal for equal opportunity that led to the expansion of public education" (Schudson, 1978, p.44). When looking at society as a whole, you have them socially, economically, and politically integrated. "Economic development was promoted and shared by many rather than few" (Schudson, p.45). The press does not cause, but picks up elements, reflects, and builds from a democratic society. "The democratization of economic life brought with it attitudes that stressed economic gain to the exclusion of social aims; business practice more regularly began to reward strictly economic ties over

How to Write a Perfect Teacher Cover Letter (With Examples)

How to Write a Perfect Teacher Cover Letter (With Examples) Quite simply, teachers rock. They give us so many of the tools we need to get by in life, and in the most Hollywood-ready moments, inspire us to get into poetry and stand on desks. But while we, as a society, see teachers at the head of the classroom, imparting the knowledge one needs to get by in this world, we might not think of the hiring process it takes to get there. But the reality is that every teacher had to go through the very ordinary hiring process to get their jobs, just like everyone else. If you’re a teacher, you want your cover letter to rock every bit as much as you do. First let’s start with the basics of a good cover letter, and what that means for your job search as an educator.Necessity #1: A Personalized IntroductionIf you’re a teacher, your most basic goal is (most likely) to get a job teaching. Great- it’s the same goal as every other person applying for this open position. Your more specific goal with your cover letter is to make su re that your name and qualifications are as memorable as possible, setting a tone that the reader can carry over into reading your resume. This means that you need to engage the reader up front.Whenever possible, make sure you’re addressing your letter (or email, if you’re being all modern about it) to someone specific. Before you start putting together your resume/cover letter package, do a little legwork about who will likely be reading this. If the job listing includes a specific name, great! You’re all set. If not, it’s worth doing a little digging online to see who will be on the receiving end.It’s also important to use the right tone. Definitely don’t go too casual. The fact that you’re likely submitting these online, or writing an email, can lead to a false sense of shortcut familiarity. So even if you’re submitting your cover letter and resume digitally, treat the email like a regular letter.Potential ObstacleYouâ€℠¢re working with an entirely online application process, with no visibility into who might be reading this. If that’s the case, and all you know is the school or school system where you’re applying, try to find information online about who has hiring responsibility for the school district. If that, too fails, go with a generic address like, â€Å"Greetings.† It’s not ideal, but it feels less stiff and formal than the old favorite, â€Å"to whom it may concern.†Good salutation examples:Dear Ms. Rodriguez,  Dear Principal Rodriguez,  Greetings, Ms. Rodriguez,Bad salutation examples:Dear Mudville Public Schools Administrator (too vague/impersonal)  To Ms. Rodriguez, Superintendent of Mudville Public Schools (too formal- you’re not introducing royalty at a state dinner)  Hi: (too impersonal/casual)  To Whom It May Concern: (too formal/too impersonal)You want your cover letter to seem professional, but approachable. The salutation helps set that tone. If you make it seem too much like an impersonal form letter, or the stiff letter of a person who is uncomfortable talking about this job application, you run the risk of not engaging the reader. And I think we all know what happens to application packages that don’t engage the reader. (Spoiler alert: they don’t get read.)Necessity #2: Your Elevator PitchYou’re an educator. You teach. That may be your elevator pitch in its simplest form, but this is your chance to add some necessary color. You should also be very specific about which position for which you’re applying, because there may be other openings in a variety of different teaching roles. If you think you’re applying for the high school English job and somehow your application gets routed to the pile for the elementary school gym teacher position, your very specific letter ensures that you’ll get to the right hands. Your resume would likely do this as well, but this hel ps the reader know up front that what position you’re seeking, and why.And above all, make sure you’re proofreading your letter- and ideally, having a trusted friend look at it as well to make sure you haven’t missed anything. Unfairly or not, teachers are held to the highest standards of grammar and written communication, regardless of whether they teach writing or physics. You know and I know that teachers are human, and prone to mistakes like the rest of us, but you can avoid a lot uncomfortable, unforced errors by adding some extra care with your cover letter.Good pitch example:As a secondary math teacher for more than 10 years, I’ve found that my passion for (and commitment to teaching) have only grown with every year. Even with the complexities of the current educational landscape, the feeling of getting through to that student who just wasn’t â€Å"getting the hang of it,† or helping advanced students achieve their goals, never gets o ld. I have dedicated my career to helping students of all levels master the math skills and concepts they need to go on to college and everyday life beyond high school, and would love to continue that path with Mudville High School.In my current position, I teach algebra, pre-calculus, and calculus to students in grades 9 through 12. Over my ten years of teaching, I’ve made it a point to stay up to date on the most current pedagogy and teaching methods, and use custom lesson planning to develop relevant curricula for students in order to maximize their engagement on complex concepts. I’ve also presented on curriculum planning at the National Federation of Teachers conference, and would bring that enthusiasm and expertise to your school.Bad pitch examples:I would love to teach at your school. Please see my attached CV, and let me know if you have any questions.This is way too little information. Who are you? What experience do you bring? What are you hoping to accomplis h in this job? It shouldn’t be a novel about your life, but you should be providing some context for your resume.Teaching has been my only consuming passion in life. I eat, drink, sleep, and breathe calculus, and will not rest until all of my students are proficient. I have ten years of experience, and will bring nothing but focus and devotion to my next ten years as a math teacher at Mudville High School.Too†¦intense. You want to position yourself as a strong candidate, but that doesn’t mean you have to pretend that you don’t have outside skills, interests, or†¦down time. Readers can see through hyperbole, so it’s best to find a balance between enthusiasm (a necessary part of any job application) and an exaggerated over-sell.Necessity #3: A Strong FinishAlways have a closing that leaves room for follow-up. Yes, the reader knows that they can email you with any questions, but it’s a conversational way to close out the letter and move the reader on to your resume.Good closing example:I would love  to continue my career as an educator with Mudville Public Schools, with its strong reputation for putting students first. If you have any additional questions or if there’s any additional information I can provide, please don’t hesitate to let me know. I look forward to hearing more about this teaching opportunity.Bad closing examples:Please let me know more about this job opening. Thanks.I expect to hear from you within a week. Thank you.In these examples, one teacher suggests that she has put thought and consideration into applying for this particular job. The other teachers, well†¦one closes with the most generic exit possible, and this adds nothing to the cover letter. In the second bad example, it comes off as too demanding, like the writer is evaluating the reader, not vice versa. I know it can be frustrating when you send your application package into the void and don’t hear back right awa y, but demanding a response doesn’t guarantee you’ll get one.A strong closing is important, as it’s one of the few remaining elements between the cover and the resume.Necessity #4: Keep It CleanLike with your resume, you want your cover letter to be clear and easy to read. That means:A standard font. This is not the time to test out â€Å"fun† fonts. Pick something clean and basic, like Times.No huge blocks of text. In a letter, unbroken paragraphs can look like the ramblings of a manifesto. You want your reader to see a series of separate, elegantly outlined points. Short paragraphs, 2-3 at most.Short length. A cover letter should never be more than a page, and even a full page is definitely pushing it. Brevity is the soul of wit, and the friend of application readers everywhere.Good letter body example:As a secondary math teacher for more than 10 years, I’ve found that my passion for (and commitment to teaching) have only grown with every year. E ven with the complexities of the current educational landscape, the feeling of getting through to that student who just wasn’t â€Å"getting the hang of it,† or helping advanced students achieve their goals, never gets old. I have dedicated my career to helping students of all levels master the math skills and concepts they need to go on to college and everyday life beyond high school, and would love to continue that path with Mudville High School.  In my current position, I teach algebra, pre-calculus, and calculus to students in grades 9 through 12. Over my ten years of teaching, I’ve made it a point to stay up to date on the most current pedagogy and teaching methods, and use custom lesson planning to develop relevant curricula for students in order to maximize their engagement on complex concepts. I’ve also presented on curriculum planning at the National Federation of Teachers conference, and would bring that enthusiasm and expertise to your school .  I would love continue my career as an educator with Mudville Public Schools, with its strong reputation for putting students first. If you have any additional questions or if there’s any additional information I can provide, please don’t hesitate to let me know. I look forward to hearing more about this teaching opportunity.Bad letter body example:As a secondary math teacher for more than 10 years, I’ve found that my passion for (and commitment to teaching) have only grown with every year. Even with the complexities of the current educational landscape, the feeling of getting through to that student who just wasn’t â€Å"getting the hang of it,† or helping advanced students achieve their goals, never gets old. I have dedicated my career to helping students of all levels master the math skills and concepts they need to go on to college and everyday life beyond high school, and would love to continue that path with Mudville High School. In my cu rrent position, I teach algebra, pre-calculus, and calculus to students in grades 9 through 12. Over my ten years of teaching, I’ve made it a point to stay up to date on the most current pedagogy and teaching methods, and use custom lesson planning to develop relevant curricula for students in order to maximize their engagement on complex concepts. I’ve also presented on curriculum planning at the National Federation of Teachers conference, and would bring that enthusiasm and expertise to your school. I would love continue my career as an educator with Mudville Public Schools, with its strong reputation for putting students first. If you have any additional questions or if there’s any additional information I can provide, please don’t hesitate to let me know. I look forward to hearing more about this teaching opportunity.One of these letters is clear and readable. The other is not. If the reader can’t get through your letter and know several things about you right away, it decreases the odds that your resume will click with him or her- and may even prevent someone from looking at the attached resume at all.Once you’ve got the body of the letter in shape, all that’s left is the closing. Like the salutation, you want to err on the side of formal, but friendly.Good closing examples:Best wishes,  Sincerely,Bad examples:Thanks. (brusque tone)Fondest wishes, (too flowery)  [name- no greeting] (too abrupt)  Let me know, (too informal and oddly personal)And with that, you’ve got your cover letter! Teachers are taking on an incredible commitment, and that means that those hiring them are looking for the most put-together, obviously qualified applicants available. You can have an amazing resume, but if you aren’t making your case with your cover letter, you’re missing out on an opportunity to really set the narrative and the tone for your application.Let’s take a last look at the good sam ple cover letter as a whole:  Dear Principal Rodriquez,  As a secondary math teacher for more than 10 years, I’ve found that my passion for (and commitment to teaching) have only grown with every year. Even with the complexities of the current educational landscape, the feeling of getting through to that student who just wasn’t â€Å"getting the hang of it,† or helping advanced students achieve their goals, never gets old. I have dedicated my career to helping students of all levels master the math skills and concepts they need to go on to college and everyday life beyond high school, and would love to continue that path with Mudville High School.In my current position, I teach algebra, pre-calculus, and calculus to students in grades 9 through 12. Over my ten years of teaching, I’ve made it a point to stay up to date on the most current pedagogy and teaching methods, and use custom lesson planning to develop relevant curricula for students in order t o maximize their engagement on complex concepts. I’ve also presented on curriculum planning at the National Federation of Teachers conference, and would bring that enthusiasm and expertise to your school.I would love continue my career as an educator with Mudville Public Schools, with its strong reputation for putting students first. If you have any additional questions or if there’s any additional information I can provide, please don’t hesitate to let me know. Thanks for your consideration, and I look forward to hearing more about this teaching opportunity.  Sincerely,Rosemarie Jones

Environmentalism Religion Essay Example | Topics and Well Written Essays - 250 words

Environmentalism Religion - Essay Example The answers to it, however, are difficult, complex, and complicated by a host of cultural, environmental, and religious variables. Lynn Whites argues that those Biblical precepts made Christianity, â€Å"especially in its Western form, â€Å"the most anthropocentric religion the world has seen, â€Å" In contrast to paganisms, Christianity posited â€Å"a dualism of man and nature† and â€Å"insisted that it is God’s will that man exploit nature for his proper ends.† Whereas ancient pagans’ creeds gave a cyclical account of time, Christianity assumes a teleogical way to history and with it the possibility of progress. The belief in progress was adopted in modern science, which, amounted to technology, and the results was the industrial revolution. Thus the power to control nature was achieved by a civilization that inherited the license to exploit it. According to White this was not a positive historical development, therefore, he believes that science technology could be the best ecological problems they had created. In my opinion science and religion may have a connection at some point, since civilization was inherited at some point from the belief of exploiting God’s creation. However, this connection is not clear because science and religion are at loggerheads and none accepts the theories brought forth by the other. In summary religion and environment maybe related in one way or another, but there is need for an extensive research to justify that. Researchers have indicated that environmentalism is close to religion. However, people argue that the two are different and science and technology is not only an advantage but an artificial problem. Finally, the subject is prone to further and extensive research that would come to a common ground regarding the

MK 491 Seminar in Marketing-Report Research Paper

MK 491 Seminar in Marketing-Report - Research Paper Example Since then it has literally transformed to a giant firm employing over 10,000 people. Google Inc. is a household name for their search engine service. Google has become so big now that it has almost become a new word in English language. Research Question The Research question posed here is discussion of the product, pricing, promotion and distribution strategies adopted by Google Inc. Literature Review Google Inc. is one of the top technology companies in the world. It offers a range of products and services which caters to the needs of the users. This company is present across different domain in the Internet and most of the consumers use their products and services in everyday life. Google hence uses different strategies to market their diverse products and services. Since they offer such diverse set of products and services, they use different market segmentation strategy to reach out to their consumer base. Their positioning strategy has to be prefect so that they live up to con sumers demands. Similarly their pricing and distribution strategy has to be developed to make them be on profit terms with other competitors. Analysis and Findings Overall business and marketing strategy of Google For Google their biggest success factor is the search engine which they have created. Google alone earns millions of rupees through advertisements. For Google information gathering is the key to their success. It makes all the products and services in such a way that it caters to all the segments in the market. This makes non-profit and private use by users absolutely free of cost. The founders of Google have a strong liking to education and libraries. The atmosphere of the company is like a university where continuous research and analysis of their product and services are done. They strive continuously for better search methods so that more useful information is available to the consumers through as many means as possible. Hence all the employees are encouraged to create something new and are rewarded for their effort through means like freedom with work hours, free meals, competitive pay etc. It organizes Annual Code Jam international competition which aims at solving the mind racing problems, and the winner is given large amounts of money. This helps them to find bright new employees. Hence Google primary business strategy is the innovation which the innovation in their products and services which they brings in front of the consumers. They have been largely successful at their overall business strategy. Segmentation strategy The segmentation strategy of Google is very diverse. Google has a diverse product line and hence it is present everywhere to cater to a number of users worldwide. For instance Google Search and other products are available to users at over 110 languages and it is still expanding (Anderson, Lazarus, Loftsgaarden and Weiss, 2003). According to a survey conducted in United States it was seen that their Search Engine was popular among users less than 34 years of age. Among them 55% of the users are male. Their users are predominantly technologically adept. Most of the users are business professionals. Again the products like Google plus, Google hangout, Picasa indicate that they are targeting the young peoples who are in their colleges and like to engage in social networking. One of the best Google products is the YouTube

It is up to you Coursework Example | Topics and Well Written Essays - 250 words - 3

It is up to you - Coursework Example The best experience is that everybody could give there points and express themselves without any fear as we were all equal. As much as many people consider these tutorials as a waste of money and time, I am not of the same idea because we gained a lot and we made sure we attended lecturers without the fear of the different styles used for teaching or even getting confused in the process. I have to agree though that we had difficulty in understanding some content and I ended up failing in some exams. The phrase, ‘Recognizing and editing sentence fragments’ gave me a lot of hard times in the tutorial as no one could clearly explain it to me. Eventually my grades started improving and I got to understand the things that we were discussing. The time that I had impressive grades in all the courses marked my success point in the tutorials. What I like most is that is that I encounter these things in my life and I don’t have hard time tackling

Rhizoremediation of Lead Using Alternanthera Versicolor

Rhizoremediation of Lead Using Alternanthera Versicolor Shalini S., Priyasha G., Sohini B. and Jabez Osborne W* Abstract: Anthropogenic development has been a major drawback due to the increased discharge of heavy metals into the environment containing the saturated and unsaturated zones of soil. Heavy metals are those which have density more than 5gram per cm cube. Lead causes major health hazards like Plumbism (lead poisoning) at higher concentrations. In the present study the ability of Alternenthera versicolor to phytoremediate toxic lead contamination was assessed at different concentrations of lead. To enhance the uptake capabilities of Alternenthera versicolor, bacterial organism capable of lead degradation was supplemented. The samples were uprooted at an interval of 10, 20 and 30 days. The uptake of lead was assessed by AAS, chlorophyll and anthocyanin content was also checked. Further the effective strain were characterised by 16s rRNA sequencing. Keywords: Rhizoremediation, 16s rRNA, PGPR, AAS, Anthocyanin, Chlorophyll INTRODUCTION The most common heavy metals found in hazardous sites are Lead(Pb), Copper(Cu), Chromium(Cr),Nickel(Ni) and Zinc(Zn).Ionic and hydroxide forms are the general forms of these heavy metals found in soil, ground water and surface water (Gade,.2000). Heavy metal contamination is a major concern because they cannot be degraded (Lone et al,. 2008). Plant growth promoting rhizobacteria are heterogeneous group of bacteria that can be found in the rhizosphere, and in association with roots. The plant-bacteria synergistic interaction in the rhizosphere is determinants of plant growth and fertility. These involve the ability to produce indole acetic acid which is an important growth regulatory hormone, to produce siderophores which enable the uptake of solubilised mineral phosphate from the soil, HCN production and Ammonia production. Morphological studies involve the root and shoot length. Hence depending upon the results obtained for each concentration, we can determine the maximum concentrat ion at which the bacteria can withstand lead contamination. Thus the present study involves the phytoremediation of lead supply by Alternenthera versicolor followed by the rhizoremedial clean up by the synergistic interaction between the effective rhizobacterial isolate and the plant. MATERIALS AND METHODS Sample Collection For the isolation of lead degrading bacteria, tannery sludge was collected from four locations in Vellore, Tamil Nadu, India. All the samples were collected using sterile polyethylene bags and were preserved immediately (McGrath et al,. 2001). Isolation of lead resistant bacteria from tannery sludge sample Lead resistant bacteria were isolated from tannery sludge using serial dilution technique and 10-4 dilutions onto MSM agar plates supplemented with 150 mg/L lead concentration. The obtained pure colonies were purified on MSM agar plates with 150mg/L lead. Screening Techniques The effective isolates obtained from the tannery sludge sample, were screened for its PGPR traits. Indole Acetic Acid Production For estimation of IAA production, the method described by (Gordon et al,  2000). was followed. The isolates were inoculated in Nutrient broth and were incubated in the shaker at 120 rpm for 24hours. 100  µl of inocula from overnight culture of NB was inoculated in MS Media that was supplemented with 5mM L-tryptophan and was incubated in shaker for 48hours. The cultures obtained were centrifuged at 10000 rpm for 10 minutes. 2ml of supernatant was taken and few drops of Salkowski’s reagent was added to it. Optical density was taken at 530 nm using spectrophotometer. (Hussain et. al,. 2013) Phosphate Solubilisation For the detection of phosphate solubilising capability of the effective isolate, Pikovskaya agar media was inoculated with effective isolate and zone of inhibition was observed after 4 days incubation at RT. (Hussain et. al.  2013) Growth Kinetics Study For growth kinetics study, seed culture of the effective isolate VITPSS1J was prepared in MSM. 2% inoculum of 0.5 OD culture was added in LB broth. O.D readings were taken at every 30 mins till stationary phase was achieved and a plot was plotted against O.D. and time interval. Preparation of pot cultures 64 pots were prepared each consisting of one control and three test pots (Cosio et al, .2004). 2 kgs of sieved garden soil was used to plant Alternanthera versicolor plantlets (20 cm in length) in each pot. Pots were placed in greenhouse for 10 days for the plantlets to get adapted. The pot culture sets were prepared according to two criteria: 1. According to various concentrations of lead being added and 2. According to the number of days of study (10, 20). After the adaptation was completed, various concentrations (25mg/L, 50mg/L, 75mg/L and 100 mg/L) of lead was added at regular interval. Fig 1: Pot cultures of Alternanthera versicolor prepared in 2 kg soil with varying lead concentration Treatment of effective strain in pots Seed culture of effective isolate VITPSS1J was prepared in Nutrient broth (incubated at RT for 24 hrs). The bacterial culture was further mass multiplied by inoculating 100ÃŽ ¼l of seed culture into 4 Erlenmeyer flasks, each containing 250ml NB. 10 ml of this mass multiplied culture was added to each pot and left for next 10 days (Hussain et al,. 2013). After 10 days, first set of plants were uprooted from the pots (10th day pots of all concentrations). Further studies were carried out on the uprooted plants in order to study the uptake of lead by these plants in association with bacteria in 10 days. Morphological characterization The root and shoot length of the uprooted plants was calculated. The length of root and shoot of the test plants were compared with that of the control plants. Comparison of the root-shoot length was also done among plants uprooted from various concentrations. The colour of the plants was also observed. Anthocyanin Estimation Anthocyanin is a pigment responsible for the red, purple, blue colour of several fruits and vegetables, cereals and grains. Anthocyanin can also be used as a pH indicator. Each plant was studied for the amount of anthocyanin present. The leaves of a plant were taken and ground with 70% ethanol and 7% acetic acid (in the ratio 3:2) in a mortar-pestle and transferred to Falcon tubes. Sterile water was added in all tubes including the controls. The tubes were kept in rotary shaker for 10 minutes and then centrifuged (15 mins, 4 ºC, 4500 rpm). The supernatant was removed and 400  µl of methanol was added in each tubes. The anthocyanin content was measured by taking the UV spectrophotometric reading at 530 nm and 657 nm. The same procedure was followed for all the 12 plants. Chlorophyll Estimation Each plant was also studied for determining the chlorophyll content. The leaves were cut into small pieces and mixed with 70% ethanol and ground using mortar-pestle. The mixture was then transferred to Falcon tubes and centrifuged at 6000 rpm for 10 mins. Supernatant was used for spectrophotometer assay of chlorophyll at 665nm and 652 nm. RESULTS Isolation of lead resistant bacteria A total of three morphologically distinct colonies were observed in MSM agar plates supplemented with 150mg/l of lead and named VITPSS1J, VITPSS2J, VITPSS3J Fig 2: Mother culture plates of the isolated bacteria from tannery sludge B. PGPR analysis of isolates Indole Acetic Acid Production: The ability of obtained isolates for IAA production was assessed. Pink coloration was observed for isolate VITPSS3J. Hence VITPSS3J was used for further studies. Phosphate Solubilisation: For the detection of phosphate solubilisation, a clear zone of inhibition is considered as a positive conformation for solubilisation. As the isolates were not able to produce any clear zone observed in the Pikovskaya media plate, the isolates were considered negative for phosphate solubilisation. Growth Kinetics: Growth kinetics was performed for effective isolateVITPSS3J. Stationary phase was achieved at 270 min (Graph1) B. Morphological Characterisation: The leaves of Alternanthera versicolor are originally reddish purple in colour. But it was observed that after the supply of lead in the soil the colour of leaves turned green. Root and shoot length were measured for Alternanthera versicolor at regular interval of 10, 20 days to check the effect of toxic lead concentration of plant growth (Table1, Table2). Table 2: Root and shoot measurement after 10 days of observation Table 3: Root and Shoot measurement after 20 days of observation Anthocyanin and Chlorophyll concentration Anthocyanin is a pigment responsible for purple, blue colour of several fruits grains and flowers. Chlorophyll is a pigment which provides green colour to the plant. (Table 3, 4) Table 4: Anthocyanin and Chlorophyll estimation after 10 days of observation Table 5: Anthocyanin and Chlorophyll estimation after 20 days of observation Figure 1 Estimation of anthocyanin after 10 days of observation Figure 2 Estimation of chlorophyll b by using spectrophotometer (652nm) Figure 3Fig 5: Estimation of chlorophyll a using spectrophotometer (665 nm) after 10 days of observation Figure 4. Estimation of Anthocyanin after 20 days of observation Figure 5Fig 7: Estimation of chlorophyll b by using spectrophotometer (652 nm) after 10 days of observation Figure 6Fig 8: Estimation of chlorophyll a by using spectrophotometer (665 nm) after 20 days of observation Molecular characterization The obtained isolate was characterized molecularly by 16s rRNA sequencing (Sarita et al,. 2005). Effective bacterial strains were characterized using the universal primers 27F (5’-AGAGTTTGATCCTGGCTCAG-3’) and 1492R (GGTTACCTTGTTTTACGACTT-3†). DNA extracts from cell’s DNA and the 16s Rrna sequence was determined by fluorescent dye terminator method using the sequencing kit. Products were obtained and run on a sequencer. DISCUSSION The present study deals with rhizoremedial treatment of the plant Alternenthera versicolor using bacterial isolates of tannery sludge. The plant has been tested as a hyper accumulator of lead which is a toxic heavy metal. Many plants have been worked upon for phytoremedial and rhizoremedial studies using n Alternenthera versicolor different heavy metals such as isolation of potent PGPR isolate; tannery sludge was serially diluted and plated onto MSM agar plates. Carassco et al,.2005 also isolated lead degrading bacteria using Nutrient Agar Medium.  Alternenthera versicolor was tested for its ability to be proved as a potent hyperaccumulator of lead. Hyperaccumulators are plants that have the abilities to take up higher concentration of toxic contaminants or compounds. Some of the hyperaccumulators already proved are Agrostis castellana  (McCutcheon et al,.2003),  Brassica juncea  (E.lombi et al,. 2001),  Brassica napus  (McCutcheon et al,. 2003),  Helianthus annuuus   (Schmidt et al,.2003). The ability of VITPSS1J to act as a potent PGPR isolate was assessed. VITPSS1J was found to be positive for Indole Acetic Acid production (Hussain et al,.2013), but it showed negative result phosphate solubilizing agent, indicating it has effectiveness as a PGPR organism. Alternenthera versicolor was tested for its ability to phytoremediate toxic lead concentration at 25mg/L, 50mg/L, 75mg/L and 100mg/L concentrations of lead. Earlier reports have suggested the use of Brassica juncea as a potent hyper accumulator for lead. Thus shoot and root length was checked at regular interval and it was found be similar as compared to the control; suggesting the effectiveness of Alternenthera versicolor in remediating lead contamination.(Hussain et al,. 2013). Anthocyanin and chlorophyll estimation also suggest the similar result as anthocyanin and chlorophyll content of a plant are a major indicating factor for its toxic uptake studies. Higher level of anthocyanin and chl orophyll at day 10 and 20 suggest that toxic effect of lead has been neutralised by various mechanism taking place in the plant like phytostabalisation and phytovolatalisation (Irene Kuiper et al,.2003). Thus the present study proves that Alternenthera versicolor can be used as a hyperaccumulator of lead at concentration ranging from 25 to 100 mg/L. CONCLUSION Alternenthera versicolor has hence been proved as a potent hyperaccumulator of lead at concentration ranging from 25 to 100mg/L and VITPSS1J can be used to remediate lead contamination. Hence further study on the synergistic interaction between Alternenthera versicolor and VITPSS1J. V. REFERENCES 1. Arvind Gulati, Pratibha Vyas, Praveen Rahi, Ramesh Chand Kasana (2009) Plant Growth-Promoting and Rhizosphere-Competent Acinetobacter rhizosphaerae Strain BIHB 723 from the Cold Deserts of the Himalayas 58:371–377 2. Althaf Hussain Sk. and Srinivas P (2013) Evaluation of Plant Growth Promoting Traits by Pseudomonas and Azotobacter Isolated From Rhizotic Soils of Two Selected Agroforestry Tree Species of Godavari Belt Region, India 431-436 3. Solon A. Gordon, Robert P. Weber (1950) Colorimetric Estimation of Indole acetic acid 4. Shirin Heydari1, Parviz Rezvani Moghadam2, Seyyed Mehdi Arab3 Hydrogen Cyanide Production Ability by Pseudomonas Fluorescence Bacteria and their Inhibition Potential on Weed Germination 5. Brianne L. Clark, Dr. Ranjan Chakraborty, Chair Dr. Bert C. Lampson ,Dr. Lee M. Pike (2004) Characterization of a Catechol-Type Siderophore and the Detection of a Possible Outer Membrane Receptor Protein from Rhizobium leguminosarum strain IARI 312 6. E. Nicole Bridgersa, Mari S. Chinnb, Van-Den Troungc (2010) Extraction of anthocyanins from industrial purple-fleshed sweetpotatoes and enzymatic hydrolysis of residues for fermentable sugars 613-620 7. Simcha Lev-Yadun and Kevin S. Gould (2009) Role of Anthocyanins in Plant Defence 978-0-387-77 8. Irene Kuiper, Ellen L. Lagendijk, Guido V. Bloemberg, and Ben J. J. Lugtenber (2003) Rhizoremediation: A Beneficial Plant-Microbe Interaction1105-01 9. Sushma Bondre, Pallavi Patil, Amaraja Kulkarni, M. M. Pillai (2012) Study on isolation and purification of anthocyanins and its application as pH indicator698-702 10. Sabyasachi Chatterjee*, Anindita Mukherjee, Agniswar Sarkar, Pranab Roy (2012)Bioremediation of lead by lead-resistant microorganisms, isolated from industrial sample290-295 11. A. Rehman, S. Ashraf, J. I. Qazi, A. R. Shakoori (2005) Uptake of Lead by a Ciliate, Stylonychia mytilus, Isolated from Industrial Effluents: Potential Use in Bioremediation of Wastewater75:290–296

Paper About Life -- essays research papers

The Longman dictionary of American English defines life as, the force that enables us to continue. Life in my eyes is the interval of time between birth and death. Throughout life you will be placed in situations, and put to the test of time. There will be times when you are joyous, and times when you are sorrowful. This is the period of trial and tribulation. Face the fact life is hard. Being an adolescent, a person is premature to the world. The value of an inexperienced adolescent is meaningless, compared to a person who has more experience in life. When I was younger, I payed very little attention to the values of life of life. In my eyes, life was fun and games. I felt I would always be a child, and have the never-ending support of my parents. I knew I lived an untouchable life, until tragedy struck and changed my life forever. Just a few years ago, I was put through a very emotional stage of depression. At the young age of fourteen, my mother went into cardiac arrest. I remember having a horrible dream that specific night about a death in my family. I remember hearing the cries of my father and sisters. It was thoses very cries that awoke me from my sleep. At the time of my awakening, I was very confused. It was as if I was living out my dream. As I walked the hallway, I noticed some strangers were in my home. These strangers were wearing paramedic paraphernalia. Suddenly, my heart began to skip beats. I noticed that something was not right in my home. I followed th...

History of Haircoloring Essay

The first major break through in hair coloring history came in 1863, when chemist Dr. August Wilhelm Von Hofmann reported the dye properties of paraphenylenediamine. His discovery led to the birth of the synthetic hair dye industry, and PPD still Dominates the field today. Hofmann was also known for his studies of organic derivatives of ammonia and for discovering the first unsaturated alcohol and several organic dyes. On the heels of Hofmann’s discovery, in 1867 London chemist E. H.  Thullay and Parisian hairdresser Leon Hugot demonstrated the advantages of hydrogen peroxide as best chemical way to lighten hair then alkaline solutions. After the mid 1920’s oxidation dyes were greatly improved and the fashionable use of haircoloring boomed. The introduction of salon and then home hair dyes during the same period brought about a revolutionary change worldwide and explosion of hair options. Clairol’s founder, Lawrence M. Gelb, introduced hair color to salons more than 70 years ago. When Clairol launched its first salon colors in 1931, millions of women began using them. Instant Clairol Oil Shampoo Tint soon changed the look of Americans. In 1950, Clairol introduced Miss Clairol Hair Color Bath, the first real breakthrough that lightened hair without the harshness and complicated handling of bleach. For the first time, hair could be lightened, tinted, conditioned and shampooed in only one step instead of five, in only 20 minutes. In the 1661 book Eighteen Books of the Secrets of Art & Nature, various methods of coloring hair black, gold, green, red, yellow, and white are explained. Hair dye or hair color, is a chemical preparation used to change the color of a person’s hair. Hair dye is used to cover gray hair, which in some cultures has historically been considered to be a sign of aging. The Romans have been known to be interested in changing hair color and history revealed that they created over a hundred recipes using natural ingredients. These preparations could only darken hair. In 2007, where the next hair color breakthrough is currently unfolding, the first in over 50 years. Advances in understanding the molecular structure of hair have allowed scientists to develop improved technologies that minimize the amount of damage in the coloring process, and even create specialized products that restore health and brilliance to colored hair. The new chemistry of hair color is here, making hair color easier, quicker, and more effective than ever. Today millions of women color their hair, spanning every age, race, nationality and religion. According to recent surveys, at least 88 percent of all women feel their hair has an effect on their self-confidence. Today women demand a quick efficient product that easily fit into their hectic lifestyle. These are the products that we have today.

Gustar Rules in Spanish Inconsistently Applied

Gustar Rules in Spanish Inconsistently Applied Not all the rules of Spanish are straightforward or logical, and when it comes to the use of number-verb agreement with gustar, the rules arent always followed. More generally, the rules of number agreement are applied inconsistently when more than one subject follows the main verb of a sentence. Logic Applies Both Ways For a simple example of a sentence where this issue comes up, look at this sentence with two singular subjects: Me gusta la hamburguesa y el queso. (I like hamburger and cheese.) Or should it be this?: Me gustan la hamburguesa y el queso. You could defend either choice in a sentence like that. Using gustan would certainly seem logical, and it is indeed said that way sometimes. But it is far more common to use the singular, gusta. Its kind of like shortening me gusta la hamburguesa y me gusta el queso by leaving out the second me gusta, just as in English we might shorten the happy children and happy adults to the happy children and adults. Why say me gusta twice if once gets the message across? The Academy Explains According to the Royal Spanish Academy, the singular verb should be used in a sentence like this when the two things youre talking about are uncountable or abstract and they follow the verb (as is usually the case with gustar). Heres an example the Academy gives: Me gusta el mambo y el merengue. Note how the two subjects are uncountable (they are both types of music or dance). Here are some other sentences that follow this pattern: Es una red social de gente que le gusta el deporte y el ejercicio. (Its a social network of people who like sports and exercise.)Me encanta el manga y el anime. (I love manga and anime.)Me gusta la mà ºsica y bailar. (I like music and dancing.)Al presidente le falta el coraje y la voluntad polà ­tica para resolver los problemas de nuestro paà ­s. (The president lacks the courage and political will to resolve the problems of our country.)Si te gusta el cine y la tele, querrs pasar tiempo en California. (If you like movies and TV, you will want to spend time in California.) But the Academy would pluralize the verb if the objects are countable. One of the Academys examples:  En el patio  crecà ­an  un magnolio y una azalea. A magnolia and an azalea grew in the courtyard. Other examples of the Academys preference: A ella le encantan la casa y el parque. (She loves the house and the park.)Nos bastan el ratà ³n y el teclado. (The mouse and the keyboard were enough for us.)Me gustan ese camisa y ese bolso. (I like that shirt and that purse.) In real life, however, the singular verb (when it precedes two subjects) is used much more often than the Academy would suggest. In everyday speech, even when verbs such as gustar have two countable subjects, the singular verb is usually used. In the following examples, both sentences might be said by native speakers, but the first is more commonly heard even though the second one is grammatically preferable to the Academy: Me duele la cabeza y el està ³mago. Me duelen la cabeza y el està ³mago. (I have a headache and stomachache.)Me gusta mi cama y mi almohada. Me gustan mi cama y mi almohada. (I like my bed and my pillow.)A Raà ºl le gustaba el taco y el helado. A Raà ºl le gustaban el taco y el helado. (Raà ºl liked the taco and the ice cream.) As to the original example, if by hamburguesa the speaker means ground beef, both of the subjects would be uncountable and the Academy would prefer use of the singular verb, gusta. If the speaker referring to a type of sandwich, or a specific sandwich, which is countable, the Academy would prefer use the plural, gustan. In real life, however, youre likely to not get flak regardless of which version you use. Key Takeaways When gustar is preceded two or more singular subjects, native Spanish speakers frequently use the singular form of the verb.The Royal Spanish Academy approves use of the singular verb form when the subjects are abstract or uncountable.Other verbs such as doler and encantar can be used in the same way as gustar.

Biography of Heinrich Hertz

Biography of Heinrich Hertz Physics students around the world are familiar with the work of Heinrich Hertz, the German physicist who proved that electromagnetic waves definitely exist. His work in electrodynamics paved the way for many  modern uses of light (also known as electromagnetic waves). The frequency unit that physicists use is named the Hertz in his honor. Fast Facts Heinrich Hertz Full Name: Heinrich Rudolf HertzBest Known For: Proof of the existence of electromagnetic waves, Hertzs principle of least curvature, and the photoelectric effect.Born: February 22, 1857 in Hamburg, GermanyDied: January 1, 1894 in  Bonn, Germany, at age 36Parents: Gustav Ferdinand Hertz and Anna Elisabeth PfefferkornSpouse: Elisabeth Doll, married 1886Children: Johanna and MathildeEducation: Physics and mechanical engineering, was a professor of physics in various institutes.Significant Contributions: Proved that electromagnetic waves propagated various distances through the air, and summarized how objects of different materials affect each other on contact. Early Life and Education Heinrich Hertz was born in Hamburg, Germany, in 1857. His parents were Gustav Ferdinand Hertz (a lawyer) and Anna Elisabeth Pfefferkorn. Although his father was born Jewish, he converted to Christianity and the children were raised as Christians. This did not stop the Nazis from dishonoring Hertz after his death, due to the taint of Jewishness, but his reputation was restored after World War II. The young Hertz was educated at the Gelehrtenschule des Johanneums in Hamburg, where he showed a deep interest in scientific subjects. He went on to study engineering in Frankfurt under such scientists as Gustav Kirchhoff and Hermann Helmholtz. Kirchhoff specialized in studies of radiation, spectroscopy, and electrical circuit theories. Helmholtz was a physicist who developed theories about vision, the perception of sound and light, and the fields of electrodynamics and thermodynamics. It is small wonder then, that the young Hertz became interested in some of the same theories and eventually did his lifes work in the fields of contact mechanics and electromagnetism. Life's Work and Discoveries After earning a Ph.D. in 1880, Hertz took up a series of professorships where he taught physics and theoretical mechanics. He married Elisabeth Doll in 1886 and they had two daughters. Hertzs doctoral dissertation focused on James Clerk Maxwells theories of electromagnetism. Maxwell worked in mathematical physics until his death in 1879 and formulated what is now known as Maxwells Equations. They describe, through mathematics, the functions of electricity and magnetism. He also predicted the existence of electromagnetic waves. Hertzs work focused on that proof, which took him several years to achieve. He constructed a simple dipole antenna with a spark gap between the elements, and he managed to produce radio waves with it. Between 1879 and 1889, he did a series of experiments that used electrical and magnetic fields to produce waves that could be measured. He established that the velocity of the waves was the same as the speed of light, and studied the characteristics of the fields he generated, measuring their magnitude, polarization, and reflections. Ultimately, his work showed that light and other waves he measured were all a form of electromagnetic radiation that could be defined by Maxwells equations. He proved through his work that electromagnetic waves can and do move through the air.   In addition, Hertz focused on a concept called the photoelectric effect, which occurs when an object with electrical charge loses that charge very quickly when it is exposed to light, in his case, ultraviolet radiation. He observed and described the effect, but never explained why it happened. That was left to Albert Einstein, who published his own work on the effect. He suggested that light (electromagnetic radiation) consists of energy carried by electromagnetic waves in little packets called quanta. Hertzs studies and Einsteins later work eventually became the basis for an important branch of physics called quantum mechanics.  Hertz and his student Phillip Lenard also worked with cathode rays, which are produced inside vacuum tubes by electrodes.   Heinrich Hertzs portrait and drawings of electrical fields that he studied appeared on a German postage stamp in 1994. Deutsche Bundespost. What Hertz Missed Interestingly, Heinrich Hertz did not think his experiments with electromagnetic radiation, particularly radio waves, had any practical value. His attention was focused solely on theoretical experiments. So, he proved that electromagnetic waves propagated through the air (and space). His work led others to experiment even further with other aspects of radio waves and electromagnetic propagation. Eventually, they stumbled across the concept of using radio waves to send signals and messages, and other inventors used them to create telegraphy, radio broadcasting, and eventually television. Without Hertzs work, however, todays use of radio, TV, satellite broadcasts, and cellular technology wouldnt exist. Nor would the science of radio astronomy, which relies heavily on his work.   Other Scientific Interests Hertzs scientific accomplishments werent limited to electromagnetism. He also did a great deal of research on the topic of contact mechanics, which is the study of solid matter objects that touch each other. The big questions in this area of study have to do with the stresses the objects produce on each other, and what role friction plays in interactions between their surfaces. This is an important field of study in mechanical engineering. Contact mechanics affect design and construction in such objects as combustion engines, gaskets, metalworks, and also objects that have electrical contact with each other.   Hertzs work in contact mechanics began in 1882 when he published a paper titled On the Contact of Elastic Solids, where he was actually working with the properties of stacked lenses. He wanted to understand how their optical properties would be affected. The concept of Hertzian stress is named for him and describes the pinpoint stresses that objects undergo as they contact each other, particularly in curved objects.   Later Life Heinrich Hertz worked on his research and lecturing until his death on January 1, 1894. His health began failing several years prior to his death, and there was some evidence he had cancer.  His final years were taken up with teaching, further research, and several operations for his condition. His final publication, a book titled  Die Prinzipien der Mechanik (The Principles of Mechanics), was sent to the printer a few weeks before his death.   Honors Hertz was honored not only by the use of his name for the fundamental period of a wavelength, but his name appears on a memorial medal and a crater on the Moon. An institute called the Heinrich-Hertz Institute for Oscillation Research was founded in 1928, known today as the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI. The scientific tradition continued with various members of his family, including his daughter Mathilde, who became a famous biologist. A nephew, Gustav Ludwig Hertz, won a Nobel prize, and other family members made significant scientific contributions in medicine and physics.   Bibliography â€Å"Heinrich Hertz and Electromagnetic Radiation.† AAAS - The Worlds Largest General Scientific Society, www.aaas.org/heinrich-hertz-and-electromagnetic-radiation. www.aaas.org/heinrich-hertz-and-electromagnetic-radiation.Molecular Expressions Microscopy Primer: Specialized Microscopy Techniques - Fluorescence Digital Image Gallery - Normal African Green Monkey Kidney Epithelial Cells (Vero), micro.magnet.fsu.edu/optics/timeline/people/hertz.html.http://www-history.mcs.st-and.ac.uk/Biographies/Hertz_Heinrich.htmlâ€Å"Heinrich Rudolf Hertz.† Cardan Biography, www-history.mcs.st-and.ac.uk/Biographies/Hertz_Heinrich.html.

Electronic and Mobile Commerce Essay Example | Topics and Well Written Essays - 1000 words - 1

Electronic and Mobile Commerce - Essay Example In response to the growing need for mobility by consumers, mobile commerce emerged out of e-commerce. According to Tarasewich, Nickerson and Warkentin (2002), M-commerce is â€Å"the ability to conduct commerce, using a mobile device, e.g. a mobile phone, while on the move.† in order to remain relevant most organization strive to establish their presence online, which as become a major competitive tool with the ever changing consumer behavior in the competition-ridden market. This paper explores tools and skills necessary to implement electronic and M-commerce in business. There are numerous sites, such as Google places, that present the chance for business organization to connect with their target market online. Such tools enable the company to stay online making possible to draw a large audience for the business. The organization should stick with chosen sites that are popular and not bother with many others. The organization can decide to stick with Facebook and Twitter, which are supposedly the most popular social media sites. Photographs tend to draw more attention than status updates. They are usually vivid, precise and welcomed by many users of social media. The fashion and music industries can reap big from using photography approach rather than posting mere status updates. Nonetheless, organizations in other industries can also make use of this approach by posting pictures of their products. This approach is likely to attract a large number of online communities into the organization. The second way to create an online presence for an organization is through creation of a website. A properly designed website can be a crucial marketing tool that can instill confidence in the business process and also act as an online storefront. All prosperous online business organizations have a fundamental platform that connects all social media profiles. The company’s website should appear formal, certified and established. To gain popularity, an organization

L. Walras Concept of Equilibrium Assignment Example | Topics and Well Written Essays - 2750 words

L. Walras Concept of Equilibrium - Assignment Example Prices are quoted in the market for each commodity at each instant of the trading process; b. The traders are price takers and they behave competitively i.e. the existence of perfect competition; and c. For any commodity, any transaction is not allowed to take place out of the equilibrium. According to Walras (1874), considering any particular market, if all other markets in an economy are in equilibrium, then that specific market must also be in equilibrium. Also, the sum of all excess demands and excess supplies (which have both positive and negative values) must be equal to zero. The equilibrium is attained through a process called â€Å"groping† in which each agent calculates its demand for a particular commodity and submits it to an auctioneer. This auctioneer matches the supply and demand of the commodities and tries to reach an equilibrium price. â€Å"Trading stops† at the point where the demand and supply for all the commodities with positive prices equate and demand for goods with a price of zero does not exceed their supply (Walras, 1954). At this point, equilibrium is achieved by the process of Groping. Answer 2 The two actors i.e. households and firms both face the problem of scarcity and choice. In the case of households, they attempt to spend their scarce resources, i.e. income, on those goods and in such a way that gives them the maximum utility. They have to bear the opportunity cost when they forgo the benefit of one commodity to avail the benefit of another. According to the law of diminishing marginal utility, as a person consumes more and more units of a commodity, he obtains less and less amount of satisfaction from every additional unit that he consumes. A point comes when the additional utility even becomes negative. For instance, over-consumption of drinking water is harmful to health According to the  principle; the total utility is maximized when utilities obtained from each of the commodities consumed become equal. (S amuelson, 1939) The firms face the same problem and they want to utilize their scarce resources, i.e. factors of production, in such a way that maximizes their profits. Just like the households, they too have to bear the opportunity cost when they forgo the usage of one factor to avail the benefit of another factor. The law of diminishing returns is similar to the working of the law of diminishing utility according to which as more and more units of a factor are employed with other factors remaining constant, the marginal product diminishes. Similarly, a point comes when the marginal product becomes negative. For instance, a certain number of units of labor can produce effects on a unit of land. More than enough units cause disturbance and disharmony in the working environment. The principle can also be applied to firms. The total product is maximized when marginal products of all the factors employed become equal. (Samuelson, 1939) Therefore, the two actors have to undergo the same processes to achieve their respective objectives. Answer 3 In Marshallian long-period equilibrium, the economies and diseconomies of scale determine whether an industry will be operating under increasing, decreasing or constant returns to scale. When the economies and diseconomies of scale are equal, they cancel each other and there is no net effect on the industry.