12 Cause Effect Essay Topics on #8220;Living Downstream#8221; by Sandra Steingraber

12 Cause Effect Essay Topics on #8220;Living Downstream#8221; by Sandra Steingraber If you are tasked with writing a cause or effect essay on the book Living Downstream there are many potential topics from which to choose. Of course, no matter the topic you have selected, it is imperative that you back up any statement or claim you make with facts. In order to help you in that regard, below you will find a handful of facts which might prove useful in the course of your writing. In the book, agricultural and industrial pollution are mixed together with anecdotes in order to provide readers with medical literature assessments, scientific assessments, and the conclusions therein about the relationship between rising rates of cancers and environmental influences. There remains a serious imbalance between studies of which environmental factors influence or contribute to cancers and those studies which focus instead of genetic predispositions for cancers. This remains a serious concern given that many cancers are not genetically transferrable and the source must be derived from an outside factor, such as an environmental factor. The reason this need should be filled is that the cancers caused by genetics, meaning those which are inherited, cannot really be altered at present and nothing can be done to improve upon the situation. However, those cancers caused by various environmental factors can be changed immediately and all influences mitigated, especially carcinogens. Carcinogens are substances which are known to cause cancer inside of living tissue, and these carcinogens exist in a variety of environmental substances to which people are exposed regularly. Chemical pesticides are one striking example of carcinogens which make their way into the human body. Those workers who are exposed to high levels of many chemicals regularly face contamination that goes unchecked by local healthcare, and only with blood and urine samples can the changes to the body be tracked. In the state of Illinois alone 54 million pounds of synthetic pesticides had been used on farms, many of which were poison. In 1950 less than 10% of all fields were sprayed with any pesticides but by 1993 99% had been treated with chemicals. Americans today between the ages of 35 and 64 are likely to die from cancer above all other ailments. In fact, by 1950 only 25% of adults could expect to get cancer while today that rate is almost 50% for men and 40% for women. The rise in cancer has increased steadily with processed foods, changing production habits, and changes in manufacturing. The qualifying link between all of these changes is the introduction of different chemical contaminants to the environment. Tazewell County located in the state of Illinois has shown many cases of a rare bladder cancer, a cancer which was contracted by the author when she was only 20 years of age. The high rates of said cancer has been linked scientifically to the carcinogenic chemicals in the region. The evidence presented in the book revealed that there was a six fold increase in the rates of bladder cancer among the workers who were exposed to particular chemicals related to rubber before legal workplace limits were put into place. In addition, immigrants who came to the area started to exhibit signs of the cancers adopted in the new area, and not the cancers which were prevalent in the place where they had been born. The maps presented by the author indicate that there are more cancers prevalent in urban areas compared to rural areas. In these maps, there are more cancers in the rural counties where the use of pesticides took place heavily, compared to those rural areas where the use of pesticides was minimal. The various studies presented in the book indicate that cancer clusters are prevalent near polluted dump sites, polluted valleys, polluted rivers, and near chemical factories. The same studies revealed that the rate of cancer in children has increased. The lifestyles of children have remained much the same over the last fifty years, without changes to alcohol consumption, smoking, or stress-related work, and yet the rate of cancer among children has risen at steady rates. Research indicates that the rate of shellfish and fish living within polluted waters has directly influenced the increase in cancer rates. Today, North Americans are seeing an increase in liver tumors among 16 fish species located throughout 25 different locations both fresh water and salt water. Each of these locations has become chemically polluted over the last sixty years. This was contrasted to the fact that the rates of liver cancer among members of those same fish species which inhabit waters not polluted by chemicals is almost non-existent. The studies conducted and presented by the author have indicated that chemicals contained in polluted areas are damaging to the immune system as well as to the endocrine system. The damage which is done to these areas results in the promotion of cancers. Regardless of whether the carcinogens have been introduced into the environment deliberately or accidentally, many scientists are afraid to speak out toward improvement unless they can be 100% sure there is a serious link and no other possible influencers. However, the existence of such high chemicals, even with the near one hundred percent studies which have been published, now render these areas seriously dangerous to the people who live there with very little legislation being done to help or hinder. There remains a serious cancer epidemic brought about by the chemical residues and the pesticides which have been used among the environment. This first claim has only been substantiated by studies covered within the book, and few and far between beyond that scope. With these facts in mind, you can find a unique cause or effect on which to focus for your writing (we prepared for you 20 sample topics on â€Å"Living Downstream† by S. Steingraber as well). Remember, there are many more facts out there within the span of the book and this list is by no means comprehensive. However, it should serve as a useful guide when you are starting off your work. Along with this information feel free to read our writing tips on cause effects essays. References: Reus, J. AN ENVIRONMENTAL YARDSTICK FOR PESTICIDES: AN INSTRUMENT TO MEASURE THE ENVIRONMENTAL IMPACT OF PESTICIDES.  Acta Hortic.  347 (1993): 215-224. Web. Searle, Charles E.  Chemical Carcinogens. Washington: American Chemical Society, 1976. Print. Steingraber, Sandra.  Living Downstream. Reading, Mass.: Addison-Wesley Publishing, 1997. Print. Stich, H. F.  Carcinogens And Mutagens In The Environment. Boca Raton, Fla.: CRC Press, 1982. Print. Viroj Wiwanitkit.,.  Melamine And Other Problematic Food Carcinogens. New York: Nova Science Publishers, 2009. Print. Zahm, Shelia Hoar, and Susan S. Devesa. Childhood Cancer: Overview Of Incidence Trends And Environmental Carcinogens.  Environmental Health Perspectives  103 (1995): 177. Web.

2 Formats for Use in the Compare-Contrast Essay

2 Formats for Use in the Compare-Contrast Essay The compare/contrast essay is an excellent opportunity to help students develop their critical thinking and writing skills.   A compare and contrast essay examines two or more subjects by comparing their similarities and contrasting their differences.   Compare and contrast is high on Blooms Taxonomy of critical reasoning and is associated with a complexity level where students break down ideas into simpler parts in order to see how the parts relate. For example, in order to break down ideas for comparison or to contrast in an essay, students may need to categorize, classify, dissect, differentiate, distinguish, list, and simplify. Preparing to write the Essay First, students need to select pick comparable objects, people, or ideas and list their individual characteristics. A graphic organizer, like a Venn Diagram or top hat chart, is helpful in preparing to write the essay: What is the most interesting topic for comparison? Is the evidence available?What is the most interesting topic to contrast? Is the evidence available?Which characteristics highlight the most significant similarities?Which characteristics highlight the most significant differences?Which characteristics will lead to a meaningful analysis and an interesting paper? A link to 101  compare and contrast essay topics   for students provides opportunities for students to practice the similarities and differences such as Fiction vs. NonfictionRenting a home vs. Owning a homeGeneral Robert E. Lee vs General Ulysses S. Grant Writing the Block Format Essay:A, B, C points vsA, B, C points The block method for writing a compare and contrast essay can be illustrated using points A, B, and C to signify individual characteristics or critical attributes.   A. historyB. personalitiesC. commercialization This block format allows the students to compare and contrast subjects, for example, dogs vs. cats, using these same characteristics one at a time.   The student should write the introductory paragraph to signal a compare and contrast essay in order to identify  the two subjects and explain that they are very similar, very different or have many important (or interesting) similarities and differences. The thesis statement must include the two topics that will be compared and  contrasted. The body paragraph(s) after the introduction describe characteristic(s) of the first subject. Students should provide the evidence and examples that prove the similarities and/or differences exist, and not mention the second subject. Each point  could be a body paragraph. For example,   A. Dog history.  B. Dog personalitiesC. Dog commercialization. The body paragraphs dedicated to the second subject should be organized in the same method as the first body paragraphs, for  example: A. Cat history.B. Cat personalities.C. Cat commercialization. The benefit of this format is that it allows the writer to concentrate on one characteristic at a time. The drawback of this format is that there may be some imbalance in treating the subjects to the same rigor of comparing or contrasting. The conclusion is in the final paragraph, the student should provide a general summary of the most important similarities and differences.   The student could end with a personal statement, a prediction, or another snappy clincher. Point by Point Format:AA, BB, CC Just as in the block paragraph essay format, students should begin the point by point format by catching the readers interest. This might be a reason people find the topic interesting or important, or it might be a statement about something the two subjects have in common.   The thesis statement for this format must also include the two topics that will be compared and  contrasted. In the point by point format, the students can compare  and/or contrast the subjects using the same characteristics within each body paragraph. Here the characteristics labeled A, B,   and C are used to compare dogs vs. cats together,   paragraph by paragraph. A. Dog historyA Cat history B. Dog personalitiesB. Cat personalities C. Dog commercializationC. Cat commercialization This format does help students to concentrate on the characteristic(s) which may be may result in a more equitable comparison or contrast of the subjects within each body paragraph(s). Transitions to Use Regardless of the format of the essay, block or point-by-point, the student must use transition words or phrases to compare or contrast one subject to another. This will help the essay sound connected and not sound disjointed. Transitions in the essay for comparison can include: in the same way or by the same tokensimilarlyin like manner or likewisein similar fashion Transitions for contrasts can include: and yetnevertheless or nonethelessbuthowever or thoughotherwise or on the contraryin contrastnotwithstandingon the other handat the same time In the final concluding paragraph, the student should give a general summary of the most important similarities and differences.   The student could also end with a personal statement, a prediction, or another snappy clincher. Part of the ELA Common Core State Standards The text structure of compare and contrast is so critical to literacy that it is referenced in several of the English Language Arts Common Core State Standards in both reading and writing for K-12 grade levels.   For example, the reading standards ask students to participate in comparing and contrasting as a text structure in the anchor standard  R.9: Analyze how two or more texts address similar themes or topics in order to build knowledge or to compare the approaches the authors take. The reading standards are then referenced in the grade level writing standards, for example, as in W7.9   Apply  grade 7 Reading standards  to literature (e.g., Compare and contrast a fictional portrayal of a time, place, or character and a historical account of the same period as a means of understanding how authors of fiction use or alter history). Being able to identify and create compare and contrast text structures is one of the more important critical reasoning skills that students should develop, regardless of grade level.

A true leader Essay Example | Topics and Well Written Essays - 500 words

A true leader - Essay Example A true leader is able to motivate the members of his group to not give up during tribulations. He drives them to keep on believing the power of teamwork and realize that aims and aspirations are better attained when people cooperate. Amidst hard times, a good leader is able to think and act strategically in order for the team to fight and in the end prevail. Leadership is about sacrifice and selflessness. It is not about abusing power or position so as to promote self-interest. Rather, it is about putting other people's welfare on top of one's own since this bodes well for the future of the entire team. This means that leaders think and even care more about their constituents or subordinates than themselves. For me, these qualities are best exemplified by Martin Luther King, Jr., the legendary leader of the black people's movement. Prior to his ascension as a great civic leader, King witnessed and experienced the injustices towards the black minority. Rules on separating the white people from people of color were being implemented in education, transportation and other public facilities. This made the black minority as second class citizens. In this regard, he valiantly fought for equal rights and racial integration. Through his po

Membrane Lab Report Example | Topics and Well Written Essays - 1000 words

Membrane - Lab Report Example In animal cells, when the solute concentration is equal on both sides of the membrane, there will be no movement of water molecules. Solutions with this property are said to be isotonic. Hypertonic solutions have higher solute concentrations. When an animal cell is placed in this solution the water molecules will move out of the cell, causing it to shrink. On the other hand, placing an animal cell in hypotonic solutions will cause water molecules to move into the cell, causing it to swell. This is because hypotonic solutions have lower solute concentrations (Freeman, 2010). This forms the basis for the hypothesis of the study: the weights of the dialysis tubings with different solute concentrations will change, showing that osmosis is dependent on the concentration of the solute. Method: Six dialysis tubings were soaked for five minutes in a beaker containing 400 ml of water to soften them. One end of every tubing was tightly tied using floss. Two of the tubings were then each filled with 10 ml of water through the untied end. These were taken to be the control tubings. Two other tubings were each filled with 10 ml of 15% sucrose solution and two other with 10 ml of 45% sucrose solution in the same way as the control tubing. The untied ends on the tubings were tied using floss and then appropriately labeled. The weight of each tubing was measured and recorded. 150 ml of water was put in six separate beakers. The six tubings were then placed separately in the six beakers at the same time. After ten minutes, the dialysis tubings were removed from the beakers and their weights measured and recorded. They were then placed in the beakers again. This step was repeated three more times. Results: The weights recorded during the experiment indicated that the weights of the dialysis tubings with sucrose solutions increased as the experiment progressed as shown in the table below. The table also shows that the average weight of the control tubings changed by a small fract ion. Time (minutes) Average weight of water control tubings (grams) Average weight of tubings with 15% sucrose solution (grams) Average weight of tubings with 45% sucrose solution (grams) 0 10.8195 11.8140 13.3010 10 10.5075 12.1435 14.7325 20 10.4570 12.7600 16.4625 30 10.4345 13.3010 17.8905 40 10.3305 13.6795 19.2070 Table 1: Table showing the average weights of the tubings after ten-minute interval The percentage changes in weights of the tubings as their weights increased or reduced are shown below. The results show that the tubings with 45% sucrose gained the most weight while the control tubings reduced in weight. Time (minutes) % change in average weight of water control tubings % change in average weight of tubings with 15% sucrose solution % change in average weight of tubings with 45% sucrose solution 0 0.000 0.000 0.000 10 -2.884 2.789 16.762 20 -3.350 8.007 23.769 30 -3.558 12.587 34.505 40 -4.511 15.790 44.403 Table 2: Table showing the percentage change in weight of t he tubings after ten-minute intervals The data in the table was used to plot the graph below. It shows visually how the weight of the dialysis tubings changes over time. Figure 1: Graph showing changes in percentage weight changes of the tubings after ten-minute intervals. The x-axis represents the time in minutes and the y-axis represents the % weight change. Discussion: The experiment showed that as the concentration of sucrose increased, the mass of the dialysis tubings also increased. In the control tubing, the change in

Microprocessor Based Water Level Controller Communications Essay

Microprocessor Based Water Level Controller Communications Essay A microprocessor incorporates almost all of the functions of a CPU on a single integrated circuit .The first of the microprocessors emerged in the early 1970 since then they are being used for electronic calculators. Computer were for a long period constructed out of small and medium-scale Integrated circuits containing the equivalent of a few to a few hundred transistors. The integration of the whole CPU onto a single chip helped a lot and therefore greatly reduced the cost of processing capacity. Other embedded uses of 4 Bit 8-bit microprocessors, such as printers, various kinds of automation etc, followed rather quickly. Affordable 8-bit microprocessors with 16-bit addressing also led to the first general purpose microcomputers in the mid-70s. From their humble beginnings continued increases in microprocessor capacity have rendered other forms of computers almost completely obsolete with one or more microprocessor as processing element in everything from the smallest embedded systems and handheld devices to the largest mainframes and supercomputers. Since the early 1970, the capacity of microprocessors have increased which suggests that the complexity of an integrated circuit, with respect to minimum component cost, doubles every two years. In the late 1990s, and in the high-performance microprocessor segment, heat generation due to switching losses, static current leakage. What is a Water Level Controller? It ia a Product which makes you tension free. It Avoids wastage of water, microprocessor based water level controller is technically advanced and simple to use, It switches ON when the water in the over tank drops down below level and puts OFF the pump when the water level rises above level. When the sump reaches valve level the system switch OF the pump automatically and switches ON the pump when the water reaches full level, BASIC INTRODUCTION: The circuit described here control the water level inside a tank. There are two different modes of operation.. The first is empty mode and it will take the water out of the tank, the pump will be used to suck the water until the water level drop below the lower level. The second is fill mode. Here the pump will be used to fill the tank, the pump will be activated until the water level reach the upper limit. Here is the schematic diagram of the water level controller circuit: The circuit uses NOR logic gates, only one integrated circuits package and one transistor is needed for the active components, very simple design. The default position of SW1 is empty mode, just switch to other position to make the water level controller works in fill mode operation. The relay can be used to control almost any type of water pump motors. Please be aware that this circuit works only with water or other electrically conductive liquids. MICROPROCESSOR BASED WATER LEVEL CONTROLLER: The water level Controller is a trustworthy circuit. it takes over the task of checking and Controlling the level of the water in the water tanks. The water level is displayed in the LED graph. The cu probes are used to detect the water level, These are inserted into the tank which is to be monitored. This water-level Controller-cum-alarm circuit is configured around the 8 bit Microprocessor 8085, It continuously monitors the overhead water level and display it and it will automatically switch On and off. All the input and output functions are done through the Programmable Peripheral Interface IC 8255. Basic block Diagram: Features very stable. Easily adjusted for operating requirements. Instant reversion to emergency. microprocessor basePID/Fuzzy controller. Principle The Autonics Water Level Modulating controlsystem is a single element Electro-pneumatic control with a pneumatic Positioner and PID/Fuzzysystem, The system comprises a Transmitter, converter module float chamber, a feedline modulating control valve and an electronicmicroprocessor based PID/FUZZY controllers. LEVEL TRANSMITTER Description The Autonic Water Level Modulating control system is a single element Electro-pneumatic control with a positioner and PID auto tuning system. A Level Transmitter with double-float chamber mounted on the boiler shell, fitted with a coil which can be make according to the requirement. A flanged mount fully stainless steel Control valve, fitted with a positioner and pneumatic actuator, which is mounted in the boiler feedline. A microprocessor-based PID/FUZZY Level controller is mounted on the control panel. An electronic Converter module is also mounted on the control panel. Operation A positive change of water level in the boiler alters the level transmitter inductance value of coil causing an imbalance in the system; This signal is transmitted through the electronic control box and connected to PID controller. Then the microprocessor-based PID level controller transmitted an electrical signal to the pneumatic positioner to position and adjusts the position of control valve. A additional low/high water level alarm or burner cut out contact are also provided in the microprocessor-based level controller with the adjustable setting position. Control valve The V control valve has many different inserts for precision throttling control. The inserts are pinned to the END CAPS and are used in conjunction with any of our standard seats. They are designed to change the flow characteristics of the valve and are offered in different shapes to meet a variety of modulating application. For very low C v applications. a specially designed â€Å"Soft† V insert incorporate both the flow element and the ball seal into one component, and maintains continuous contact with the ball. This arrangement provides excellent low end accuracy (EQ%) and repeatability ADVANTAGES OF WATER LEVEL CONTROLLER: Saves electricity Can be used any type of pumps Protection to the pump, LED Indication to monitor the water level in the over had tank and sump Low voltage and High voltage cut off (Working Range: 160v to 260v) Motor control: Direct switching up to 1 HP, through starters for ranges above. Application of water level controller: Residential buildings, Apartments, Hospitals, Educational Institutions, Hostels, Hotels, etc. In maximum homes water is first stored in an underground tank and from there it is pumped up to the tank located at the roof. People normally switch on the pump when their taps go dry and switch off the pump when the tank starts overflowing, which results in the unnecessary wastage and sometimes non-availability of water in the case of emergency which is to be controlled and corrected. The author used a piece of non-metallic conduit pipe (generally used for domestic wiring) slightly longer than the depth of the overhead tank. The common wire C goes up to the end of the pipe through the conduit. The wire for probes L and H goes along with the conduit from the outside and enters the conduit through two small holes bored into it as shown in Fig. 2. Care has to be taken to ensure that probes H and L do not touch wire C directly. Insulation of wires is to be removed from the points shown. The same arrangement can be followed for the underground tank also. To avoid any false triggering due to in terference, a shielded wire may be used. This water level sensor is good or appropriatefor liquids that have a conductivity of equal to or more than 25m Siemens,not only this It is your best choice for a water level switch. The system is economical. The level probe and the evaluation unit can be connected using a long cable. Two point sensors for independent switching and automatic control of pump TECHNICALLY Housing :aluminium, Weather-proof enamel painted suitable for back panel Cable Entries :3 Nos. of  ½ BSP Mains 110 or 230 Volts AC (-15 to + 10%) 50 Hz. Relay Output 50Hz for non-inductive load Power Consumption 5 VA . Fail-Safe Mode High or Low field selectable Response Time 0.5 secs Switching Delay 0.5 to 20 seconds Indication Red LED for Alarm, Green LED for Normal Operating Temp. : -20 ° C to + 60 ° C Weight ~2 Kg.

School Prayer :: essays research papers

School Prayer By Danielle Clark Block 1 Speech 105 I. Intro- Contrary to the claims, students have the Constitutional right to pray in school, either individually or in informal groups so long as the prayer is not organized by the school. But if the students only knew what they were really doing by praying in school. II. First of all they are going against the Bible. As to quote, Matthew 6:5-6: "And when you pray, do not be like the hypocrites, for they love to pray standing in the synagogues and on the street corners. But when you pray, go into your room, close the door and pray..." So as you can see those who pray in places such as the cafeteria, middle of the hall or things of that nature is actually going against the bible. Now I am not saying that a person should not pray in schools, but they should do it just as the Bible says in a personal place. If a student can't find a personal place, and have an undesirable need to pray, they need to not make a big deal out of it. Praying as put in the Bible is a personal experience between that person and God. Not an event to be proclaimed up and down the hallway. III. Another problem there is with praying in schools is the fact that there are some students who don't believe in God. The purpose of a democracy is to have the majority decide but yet always respect the rights of the minority. Some administrators, teachers, parents, and most importantly, kids, just feel uncomfortable when it comes to religion. Several factors could be attributed to this problem, from too many religions and religious theories to religious pressure to lack thereof. But whatever the reason some people feel offended by seeing these students pray. They think that their rights are being infringed upon. Well in example, if a shirt some student is wearing offends a person they tell someone about being offended. Someone else is also offended and so they tell someone. These 2 people influenced by what they have heard tell more people. This chain reaction continues until that kind of shirt is not allowed in schools, in example Marilynn Manson shirts. The minority there is the students wanting to wear the shirts; the majority is the people offended by it. The majority spoke and the minority is told to fallow.

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Chidera Egbukwu Mr. Bodden ENG4U 10 September 2012 Downturn in Ontario Economy The city of Ontario has become a place of interest due to the economical issue of financial inequality, non-affordable houses, poorest funding of public services among all other provinces. In response to the economic downturn of the Ontario economy due to the excesses of debt run, the world of the Ontario economies is approaching a new era, which is very negative. With a population of more than thirteen million (13,000,000 >), which is 38. % of Canada, Ontario is home to one in three Canadians. More than 15 percent live in urban Centre’s, largely in cities on the shores of the great lakes. Regardless of the size of Ontario, it is ranked at the bottom of the province pack inclusive of: Alberta,  British Columbia,  Manitoba,  New Brunswick,  Newfoundland and Labrador,  Nova Scotia,  Ontario,  Prince Edward Island,  Quebec, and  Saskatchewan. When it comes to funding and access to public programs and services ranging from health care to education and justice to disability benefits.The income gap between rich in Ontario is very high with the provinces poor and middle classes (grassroots citizens) working more hours with inconsequential income gains while the richest still gain more huge income with less experience in hard work, in other words no matter how hard the poor/middle class work they cant earn as much or even 10 percent as much as the rich. Ontario also has the worst record on affordable housing, with 152,077 Ontario households on wait lists in January 2011, the report says.In 2009, Ontario spent $64 per person on affordable housing compared to the provincial average of $115 per person. The poor still can’t even afford the houses that range from prices as high as C$292,500, which happens to be the cheapest price for a house in Ontario. From 1981 to 2010,Ontario experienced the largest income inequality of any of the eleven provinces at the same time having the second highest increase in poverty rate. According to the Ontario long-term report, in 2009, the government announced a comprehensive tax package that will help create jobs and make Ontario more competitive.I think the problem for Ontario with this move might be that borrowing money amongst the middle class and grass-root Ontarians, which will make Ontario reaching its budget target harder to reach. â€Å"Economic growth will slow to 2. 7% in 2011 following the ? rst full-year recovery rebound to an estimated 3. 0% in 2010. The economy grows more slowly in 2012 with the removal of government stimulus and ? scal consolidation along with slower growth in exports. Business investment spending stands out as the most robust sector of the economy growing at an average 6% annual rate during the forecast period.The unemployment rate slowly retreats from its highs, remaining above 8% this year and falling to below 7% in 2014. In? ation spikes higher in 2011 due to higher en ergy and food prices but settles down in the following three years to just above 2% annually. The province’s export-oriented industries struggle under a currency at par and below normal U. S. import demand. â€Å"(Helmut Pastrick, 2011) The highlight of Ontario’s forecast for 2011 to 2014. John Milloy, the minister of community and social services â€Å"we realize that the system needs fixing. I’m the first to admit that there are some huge problems with it†.Personally I take that as an ignorant comment because of the Ontarian government were really concerned about the declining turmoil of the Ontarian economy, immediate changes would be made in the financial aspect of the economy to prevent a great breakdown of the economy from the growth stage to decline stage (recession). Some of the changes I think should be made are: Improvement of basic infrastructure, modernizing tax system , creating more job opportunities to reduce unemployment, more public serv ices ,improving productivity , On the long run. Growth and macro economy.