The Performance Of Database Management - 1189 Words

Performance measurement is the process of collecting, analyzing and/or reporting of key defined metrics regarding the performance of database management components and the overall database management system. As a process, performance measurement is not just collecting data associated with a predefined performance goal or standard. Performance measurement is an overall management system involving prevention and detection aimed at achieving conformance of the database management process to an established target. Additionally, it is concerned with process optimization through increased efficiency and effectiveness of the product, solution or service. These actions occur in a continuous cycle, allowing options for expansion and improvement of the process as better techniques are discovered and implemented. If an activity cannot be measured, it most certainly cannot be controlled. If it cannot be controlled, then it cannot be managed. Without dependable measurements, intelligent decisions cannot be made. There are a number of tools available that can assist with testing performance and scalability of Oracle Databases and their platforms including Swingbench, HammerDB, Benchmark Factory for Databases, Apache JMeter, HP Load Runner (with SiteScope) and others. Database Replay introduced as an option since Oracle 11g allows the recording of a production database workload and replay that workload against a development or test instance of the database. With 12c Oracle has enhanced theShow MoreRelatedLiterature Review1352 Words   |  5 PagesLiterature Review - The Literature Review will focus on database management, data mining, and correlation of appropriate data sets within a networked environment. Bardoliwalla, N. (December 1, 2009). The Top 10 Trends for 2010 in Analytics, Business Intelligence, and Performance Management. Enterprise Irregulars. 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Bus401 Mini Case Chapter 9 Free Essays

Percentage of future financing Type of financing Bonds (8%, $1,000 par, 16- year maturity38% Preferred stock (5,000 shares outstanding $50 par, $1. 50 dividend15% Common equity47% Total100% A. Market prices are $1,035 for bonds, $19 for preferred stock, and $35 for common stock. We will write a custom essay sample on Bus401 Mini Case Chapter 9 or any similar topic only for you Order Now There will be sufficient internal common equity funding (i. e. , retained earnings) available such that the firm does not plan to issue new common stock. Calculate the firm’s weighted average cost of capital. BondsPreferred stockCommon Stock 1035-15% (155. 25) = 879. 75 1. 50/(19-2. 01) 16. 99 = 8. 83% 2. 65/35 + . 06 = 13. 57% 9. 9% 9. 49% (1-. 34) = 6. 26% WeightsAfter tax captialProduct Bond 0. 38X6. 26%=2. 3788 Preferred Stock0. 15X8. 83%=1. 3245 Common Stock0. 47X13. 57%=6. 3779 10. 08% B. In part a we assumed that Nealon would have sufficient retained earnings such that it would not need to sell additional common stock to finance its new investments. Consider the situation now when Nealon’s retained earnings anticipated for the coming year are expected to fall short of the equity requirement of 47% of new capital raised. Consequently, the firm foresees the possibility that new common shares will have to be issued. To facilitate the sale of shares, Nealon’s investment banker has advised management that they should expect a price discount of approximately 7%, or $2. 45 per share. Under these terms, the new shares should provide net proceeds of about $32. 55. What is Nealon’s cost of equity capital when new shares are sold, and what is the weighted average cost of the added funds involved in the issuance of new shares? Common Stock 2. 65/32. 55 + . 06 = 14. 14% WeightsAfter tax captialProduct Bond 0. 38X6. 26%=2. 3788 Preferred Stock0. 15X8. 83%=1. 3245 Common Stock0. 47X14. 14%=6. 6458 10. 35% How to cite Bus401 Mini Case Chapter 9, Papers

Freedom Equality Order Essay Example For Students

Freedom Equality Order Essay Freedom, Equality, Order 1 . Select either Shays Rebellion or ADA, 1990. Discuss how your chosen event/ legislation is either an example of Freedom vs. Order or Freedom vs. Equality. I selected Shays Rebellion, and I learned that the events that happened throughout that rebellion was a Freedom vs. Equality situation because what was happening was that the post-war situation left farmers whove been gone for months fighting, came home with nothing to show for it and they were still forced to pay high taxes on their property. This sent the farming community into a vicious cycle of spiraling down, losing more and more money because they have to sell their belongings for little money to pay off the old debt which caused new debt. These farmers got prosecuted by a debtors court and the legislation wouldnt put a slow to the farming dilemma because they were carrying the interests of the merchants who let the farmers borrow money. 2. What freedoms are most important to you? I really only have freedom important to me, and thats the freedom of speech. You an take everything you want away from me freedom wise, except for freedom of speech. Because freedom of speech isnt Just saying what you want to say whenever you want to say it, but its a freedom of expression. You can wear what you want, symbolize what you want, write what you want, and criticize whichever power fgure you want. Its what keeps open discussion and drives innovative thoughts that progress America. 3. What freedoms are you willing to give up in an effort to maintain order? I dont think Id give up any freedom to maintain order unless I knew y giving up that freedom the result would be a 100% effective state of order. For example, the hot issue right now is Right to Bear Arms, its a freedom. But, at the same time its a freedom that was made in times when having arms were necessary and thoughts of rebellion and war were constant and close. If the Government proved they could remove weapons entirely from the hands of people and criminals alike, and stop any future manufacturing of them, I would give up that freedom to maintain an order. 4. After September 11 there was great discussion of furthering order to keep our nation safe. For example, many individuals argued for the right of the government to be able to increase its wiretapping powers in order to avert terrorist acts. Do you think the government should do more to keep citizens safe? Why or why not? What things would you be willing (or unwilling) to give up in order to maintain safety? Well, I think in the state that our Government is in these power moves such as increasing wiretapping to stop the terrorists is Just an excuse to take advantage of a cared and compliant public to further Government power not Just for the terrorists. Terrorism is a recurring fad. Think of terrorism the way you think of rurDles, sure tney were once Incre01Dly popular, out Tor a wnlle tney go clown, out this year, after countless years of Furbies going down, they became the got to have Christmas gift. Its a situational recurring concept, Just like terrorism. I dont think the Government should do more to keep citizens safe, because often these measures are implemented after some kind of scare (aka 9/1 1 ridiculous, and may I say ineffective, airport security). They need to sit down and look to put practical measures that dont inconvenience people, but in the end all the public should be in charge of protecting themselves and never dropping any freedom for a false sense of protection. Thats how I personally feel. So, for a more direct answer, its no, the government shouldnt do anything, the people should decide what to do, and I wouldnt give up anything to maintain safety, theres no such thing.

LDH Purification lab Report Essay Example

LDH Purification lab Report Paper OLD was purified from the ammonium sulfate precipitated protein mixture by affinity chromatography and its activity was studied by spectrophotometers determination of NADIA at 340 NM. From Pierce BCC assay of crude homogenate, initial protein concentration was shown to be 100 MGM/ml. The final protein concentration of the pooled affinity sample was shown to be 0. 2 MGM/ml. It was found that the total specific activity of OLD was 58. 5 mol/min/MGM, and yield of 0. 6%. Even though we were successful in purifying OLD enzyme, further steps can be taken to increase the yield. Materials and Methods Cell Lysine and Extraction of OLD: Approximately 40 g of minced chicken breast eat (40. 327 g) is blended with ml cold extraction buffer in four 30-seconds bursts for homogenate of the muscle tissue. The extraction buffer contained mm Tries-HCI (pH-7. 4), mm 2-Merchantable, mm Phenylmethylsulfonylflouride (AMPS), 1 mm Ethylene Dianne attracted acid (EDIT). The homogeneities procedure was carried out in the cold room to prevent the denomination of proteins. The homogenate was centrifuged at 15,000 RPM for 20 minutes at 40 C. The supernatant was filtered through two layers of cheesecloth to remove lipids from the supernatant. The total volume was noted and three 0. Ml aliquots (crude extract) were stored at -200 C. Ammonium sulfate precipitation: 60% ammonium sulfate concentration was used to precipitate proteins. 0. 39 g of ammonium sulfate per ml of the supernatant was added gradually to the supernatant for 15-20 min with continuous gentle stirring at 40 C. The mixture was centrifuged for 20 minutes at 1 5,000 RPM at 40 C. The supernatant was discarded and the pellet was stored at -200 c. We will write a custom essay sample on LDH Purification lab Report specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on LDH Purification lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on LDH Purification lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Dialysis: Ammonium precipitation leads to high concentration of salts in protein mixture that can interfere with further purification steps. In order to remove excess salts, dialysis was performed. The pellet was suspended in Tries-AMPS buffer (10 rim Tries-HCI, pH 8. 6, 0. 5 mm 2-Merchantable, and mm ratio of EDIT) and mixed very gently until it dissolved at 40 C. Volume of ml protein mixture was added in the dialysis tubing and incubated twice overnight with two IL buffer changes (Same buffer as extraction buffer that was used for cell lysine). After two incubation, protein mixture was responded gently and centrifuged for 10 minutes at 15,RPM at ICC. Pellet was discarded, total volume of supernatant was noted and three 0. 1 ml aliquots were collected. Affinity Chromatography: Isobaric Blue column was used to separate OLD from the other proteins. Ml fractions were collected in thirteen test tubes. Column was first rinsed with Tries-AMPS buffer followed by addition of protein mixture. Then, ml AND Buffer (mm Tries-HCI pH-8. 6, 0. Mm 2-Merchantable, mm Lithium acetate and 1 mm AND+) was added followed by NADIA (mm Its- HCI PH 8. 6, mm NADIA and 0. Mm 2-Merchantable). Between each steps, column was washed with ml Tries-AMPS Buffer. Each fraction was subjected to absorbency reading of Mann. For absorbency above 1. NM, 1:10 dilutions were carried out. Activity Assay: We used OLD Enzyme assay to measure the amount of OLD activity in our protein mixture. OLD catalysts the conversion of lactate to private and AND+ to NADIA. The NADI A can be determined spectrophotometers at 340 NM. The OLD assay was performed in the crude homogenate, desalted fraction and six peak fractions from the Isobaric blue column. A cocktail solution was prepared by mixing lactate stock solution (120 rim lithium lactate, 10 mm Tries-HCI; pH 8. 6), AND+ stock solution (12 mm AND+, 10 mm Tries HCI; pH 8. 6) and bicarbonate stock solution (18 mm Enhance, 0. 5 M Nasal) in the ratio of in cavetti. 0 micrometers of the sample is then added and the assay absorption is measured at Mann. If absorbency was above 1. 5, samples were diluted. Protein Assay: The Pierce BCC Protein Assay (Thermo Scientific) is a detergent- compatible formulation based on bioscience acid (BCC) for the colorimetric detection and quantization of total protein concentration. A series of standard solution of Bovine Serum Albumin (BAS) ranging from 0-2000 pig/ml was prepared from a stock solution of 2 MGM/ml BAS. Lull of diluted crude (1:500, 1 :250), desalted (1:100, 1:50), and 6 peak fractions from isobaric blue column (1:10, 1:5) ere loaded in microscope along with lull of BCC working reagent. Microscope was incubated for mini at ICC and then the absorbency was measured at Mann. Results/Discussion The purpose of this experiment was to extract and purify OLD enzyme from chicken muscle tissue using a variety of techniques including homogeneities, ammonium sulfate precipitation, dialysis, and affinity chromatography. Activity and Protein assay were used to track the overall amount of OLD present in the samples. Crude Extraction: Chicken muscle tissue was homogeneity in a blender with cold extraction buffer in order to else cells, releasing OLD into slurry of tissue monuments. Centrifugation separated membranes, nuclei, and other large cellular components to a pellet leaving a supernatant of crude product. Controlling temperature was a major consideration after homogeneities since not only did this step releases proteins like OLD from the cell, but it also releases proteases that can now interact to degrade the OLD. Keeping samples on ice, pre-cooling the buffer, and avoiding excess kinetic energy through conservative blending were methods used to minimize activity of these proteases. After filtration through cheesecloth, our final volume of crude homogenate sample ml, much more volume than expected. Addition of more than ml of buffer volume could have increased the volume. Other possible explanation is that more solid components such as fats were present in the sample and hence, more than 20 minutes of centrifugation was required. Desalted Sample: 60% ammonium sulfate is added to the crude extract that precipitates OLD proteins. The resulting 40% pellet theoretically contains most of the original OLD, which is re-suspended in very less volume (ml) to create a more concentrated sample. This process leads to high concentration of salts in rotten mixture that can interfere with subsequent purification steps. Ml protein mixture underwent dialysis procedure that removes excess salts and our final volume after dialysis was ml. One possible explanation for increase in our volume could be that extraction buffer got mixed with protein mixture either due to tubing leaking or tubing clips not being properly tightened. Affinity Chromatography: Isobaric Blue column is an affinity column, which is specific to dehydrogenate type proteins, due to a compound structurally similar to NADIA being attached covalently attached to the column. 13 fractions were elected and absorbency was measured at Mann to check presence of OLD protein in the fractions. 1:10 dilution was performed if absorbency reading was above 1. NM since it spectrographically indicates saturation and less than 1% light reaching the detector. During the addition of protein mixture (fraction# 4), high absorbency reading of NM was obtained (Fig. 1). This could be due to lot of non-dehydrogenate-type proteins present in our sample that got eluted first during affinity chromatography. Second peak was seen after AND+ was added since AND solution results in the removal of the loosely bound protein. Third peak was seen after NADIA was added since NADIA solution results in release of maximum OLD proteins (Fig l) Enzyme Activity Assay: The OLD activity was measured spectrophotometers by measuring the absorbency of NADIA at 340 NM. Three peak fractions were selected for this assay based on their absorbency values obtained after adding AND+ (fraction# 6, 7, 8) and other three after adding NADIA in the affinity chromatography step (fraction# 10, 1 1 , 12). A huge activity of 141 mol/min/ml was seen at fraction# 7(PUFF ) which indicated that we had lot of proteins present in our sample. Second peak activity was seen t fraction indicating that more OLD proteins is present in this fraction than in fraction# 11 (PUFF) (fig. 1). Based on this information, we selected fraction #10 as for our protein assay. Desalted showed highest activity among all the samples (Tablet ) possible due to errors occurring during dialysis explained previously. Figure 1. Absorbency readings of eluted obtained from affinity chromatography with OLD activity for 6 peak fractions. The desalted fraction was loaded to the Isobaric blue column and proteins were eluted with Tries-AMPS, AND+ and NADIA wash subsequently. The absorbency at 280 NM of eluted were measured after ACH collected fractions. The OLD activity was calculated from the absorbency values obtained at Mann. Protein Assay: We used BCC Pierce Assay to determine protein concentrations in our protein mixture. BAS standard curve was created for series of dilutions ranging from 0-2000 pig/ml and linear graph equation was used to calculate protein concentrations for the samples (Table 1). Based on Table 1, with each subsequent purification step, protein concentration decreases as sample become more concentrated with only OLD protein. Specific activity should increase and total activity should decrease with very purification step as samples get less and less diluted.

The Roman Empire and the Gladiator Games essays

The Roman Empire and the Gladiator Games essays The Roman Empire was the undoubted pinnacle of society prior to the Middle Ages, and nothing came close to expressing its might, culture, and subjects as the Gladiatorial games did. Views on such Roman sports being cruel and barbaric are merely superficial as these events were deeply integrated within this ancient empire, representing its ideals. Often these were spectacular battles in awe-inspiring arenas which were themselves an architectural masterpiece of those times. Above all, the games portrayed the glory of success, the satisfaction of which nothing else could give. To the Romans, from the Emperor to the commoner, their empire was the epitome of power. These games were showpiece events that displayed the might and glory of victory that Romans hold so close to their hearts, especially so, at a time when war and territorial conquests was getting infrequent. As seen in Gladiator, the sight of a victorious competitor in the arena after a bloody battle brought immense cheering and approval from the fans. Only the best gladiators were deemed appropriate to compete in the Colosseum which greatly raised the games' standard. The replication of these games in the provinces served to highlight the influence these games had and indirectly integrated these towns closer to the central axis of power, Rome (referred to as "the light" in the movie). The battle arenas themselves symbolized power in the architectural sense. The Colosseum was the largest and perhaps most elegantly crafted structure in Rome, and it was only fitting that such a magnificent arena sh ould stage important events such as gladiatorial games. With their obsession of power and glory, it is no wonder that the crowds are fickle enough to change "allegiance" to whichever group of gladiators is winning the battles at the moment as seen in the battle between the charioteers and the slave gladiators in the movie. The sponsor of the Games (usually the Emperor) also showed his o...

Aztecs and the Aztec Civilization

Aztecs and the Aztec Civilization Aztecs are the collective name given to seven Chichimec tribes of northern Mexico, who controlled the valley of Mexico and much of central America from its capital during the Late Postclassic period from the 12th century AD until the Spanish invasion of the 15th century. The main political alliance creating the Aztec empire was called the Triple Alliance, including the Mexica of Tenochtitlan, the Acolhua of Texcoco, and the Tepaneca of Tlacopan; together they dominated most of Mexico between 1430 and 1521 AD. For a complete discussion see the Aztec Study Guide. Aztecs and their Capital City The capital city of the Aztecs was at Tenochtitlan-Tlatlelco, what is today Mexico City, and the extent of their empire covered almost all of what is today Mexico. At the time of Spanish conquest, the capital was a cosmopolitan city, with people from all over Mexico. The state language was Nahuatl and written documentation was kept on bark cloth manuscripts (most of which were destroyed by the Spanish). Those that survive, called codexes or codices (singular codex), can be found in some small cities in Mexico but also in museums around the world. A high level of stratification in Tenochtitlan included rulers, and a noble and commoner class. There were frequent ritual human sacrifices (including cannibalism to some degree), part of the military and ritual activities of the Aztec people, although it is possible and perhaps likely that these were exaggerated by the Spanish clergy. Sources An  Aztec Civilization Study Guide has been developed with loads of details on lifestyles of the Aztecs, including an overview and detailed timeline and king list. The photograph used on this page was provided by the Field Museum for a part of their new exhibit Ancient Americas. Also Known As: Mexica, Triple Alliance Examples: Azcapotzalco, Malinalco, Guingola, Yautepec, Cuanahac, Templo Mayor, Tenochtitlan

Coal chemical looping Research Paper Example | Topics and Well Written Essays - 3000 words

Coal chemical looping - Research Paper Example As it has been reported that the global demand for energy is likely to be fulfilled by the exploitation and utilization of fossil fuels in decades to come, the need for developing effective systems for the capture and storage of CO2 has become indispensible (Yue 2010). While, the significance of this observation is undeniable the present systems and frameworks which are utilized extensively in the industry are inadequate and do not support the advancement of certain aims and objectives that are associated with the development of suitable technologies. As noted by Yue (2010), present solutions for solving the issue are marked by the absence of cost-efficiency, capture efficiency and conversion efficiency which is an alarming scenario for both researchers and analysts alike. This observation proposes that the technology of chemical looping combustion (CLC) and its related processes have emerged as an innovation which presents numerous prospects and opportunities for the development of energy and power-related technologies by minimizing the risks, limitations and drawbacks that are associated with the solutions that are currently and presently available within the industry. Numerous studies and researches have established that the CLC technology boosts of impressive efficiency rates for the purpose of producing electricity and hydrogen in scenarios where the system of gasification is associated and integrated within the chemical looping technology (Yue 2010). Since the inception of the innovation, empirical studies have also been able to establish the types of suitable components that should be installed within an effective CLC system to maximize desired outcomes. This aspect involves the selection of solid fuels that can be used in chemical looping in addition with the oxygen carriers which have the potential to enhance the oxidation process. Even though, these observations have revealed the possibility of utilizing an extensive range of carbonaceous fuels and ca rriers, the scope of this paper focuses on the process of coal chemical looping such as the coal-direct looping process and the process of syngas chemical looping. Furthermore, the paper also explores the practical applications of chemical looping combustion in organizations such as General Electric and Alstom. In conclusion the research examines the advantages, challenges and limitations that are associated with the process of coal chemical looping in the light of recent researches and studies. The application of chemical looping combustion (CLC) processes is a revolutionary advancement and innovation in the industry, as stated by Yue (2010): Chemical-looping combustion (CLC) is a new alternative to conventional combustion that prevents the CO2 from being mixed in the combustion gases. This is accomplished by preventing the air-N2 to be present in the part of the reactor system where the oxidation of the fuel takes place. (p. 527) The introduction and subsequent incorporation of ch emical looping techniques and strategies was impelled by the absence of frameworks that could be applied for the separation and conversion of chemicals during the occurrence of various product-related procedures (Fan 2011). While, this observation is reflective of the traditional demands and needs which initially required the launch of chemical looping techniques, contemporary applications of chemical looping essentially aim to fulfill the need of establishing a modern, optimized and effective