Lab Report Essays (Examples)

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Essay
Lab Report for False Memory
Pages: 4 Words: 1293

Path analysis procedures demonstrated that the participants' verbalization of the critical lures during the encoding process predicted their own levels of false recall of words in the lists. In short, encoding could be manipulated (deliberately even) to "enhance" and to produce false memories in a regular pattern (Goodwin, Meissner, & Ericsson, 2001, p. 806)
Method

In our experiment results, the hypothesis results were easily verifiable and follow-on clearly from earlier results of the academic literature. The method included an "in list," a not in list related category, and a not in list unrelated category

Results

N

Average recognition rates for: In list

83%

Not in list related

50%

Not in list unrelated

1%

After studying our list of semantically related words, the participants consistently produced false memories of an associated word in the list even though this word was not there in actuality. The memory errors were found to be difficult to avoid even if the research subject is informed…...

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Works Cited

Deese, James. (1959). "on the prediction of occurence of particular verbal intrusions in immediate recall." Journal of Experimental Psychology, 58, 17-22.

Goodwin, Kerri A, Meissner, Christian A., & Ericsson, K. Anders . (2001). Toward a model of false recall: experimental manipulation of encoding context and the collection of verbal reports. Memory & Cognition, 29(6), 806-819.

Roediger III, Henry L., & . McDermott, Kathleen B. (1995). Creating false memories:

remembering words not present in lists . Journal of Experimental Psychology, 21(4), 803-814.

Essay
Lab Report Template Save As
Pages: 2 Words: 659

This mixture was strained into the beaker where the detergent was mixed in and the mixture was allowed to sit before being poured into the five test tubes, with (roughly) equal amounts of the mixture in each tube. Four to six drops of contact lens cleaning solution was added to each test tube and gently stirred with a cotton swab. Alcohol was then slowly poured down the side of the test tube, until an amount roughly equal to that of the underlying mixture rested at the top portion of the tube.
esults:

As expected, DNA precipitated in the border region where the water mixture met the alcohol in each test tube. This DNA material appeared as white clumps of strands in the test tubes, and was removed using cotton sticks. Substantial amounts of the DNA formed in each of the test tubes.

Discussion:

The amount of DNA that precipitated in each test tube…...

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References:

Fuller, R. (2010). "The uses of genetic testing." Accessed 4 August 2010.  http://ezinearticles.com/?The-Uses-of-Genetic-DNA-Testing&id=427631 

HGP. (2010). "DNA forensics." Human genome project. Accessed 4 August 2010.  http://www.ornl.gov/sci/techresources/Human_Genome/elsi/forensics.shtml 

Reeves, D. (2008). "Plant DNA 'barcode' identified." Medical news today. Accessed 4 August 2010.  http://www.medicalnewstoday.com/articles/96369.php

Essay
Lab Report Template Save As
Pages: 2 Words: 669

Specific data was then tabulated to determine the increase of bacteria resistant to specific, common types of antibiotics, like penicillin and erythromycin.
However, to determine the most effective method of coping with disease resistance, the experiment then reviewed the methods of a study in Finland that examined the effects of consciously cutting back on erythromycin prescriptions, which seemed to result in a precipitous drop in disease resistant-bacteria, versus previous studies of antibiotic rotation, which a study of a hospital population indicated was fairly ineffectual.

esults:

The number of new antibiotics developed by researchers has slowed dramatically since the 1960s. Antibiotic-resistant bacteria have become more prevalent. Antibiotic 'rationing' seems to be the most effective way in the short run to contain the spread of antibiotic-resistant bacteria.

Discussion:

As fewer types of antibiotics are developed, and more individuals are prescribed and use antibiotics, the chance of developing antibiotic-resistant bacteria increases. The suggested remedy for this problem…...

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References:

"Antibiotic-resistant bacteria." Better Health Channel. 2009. August 24, 2010.

 http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Antibiotic_resistant_bacte 

"FAQ on antibiotic resistance." Centers for Disease Control (CDC). 2005. August 24,

2010.  http://www.cdc.gov/narms/faq_pages/3.htm

Essay
Lab Report The Function and Importance of Surfactant
Pages: 5 Words: 1576

The Function and Importance of Surfactant: Lab ReportIntroductionThe purpose of this lab report is to demonstrate the function and importance of surfactants using household products. Surfactants play an important role in the respiratory system, whereby they coat the alveoli walls of the lungs (National Library of Medicine - NLM, 2017). According to the NLM, the ability of surfactants to coat the alveoli walls is rooted in their surface tension reducing capabilities. Two experiments were performed - whereby the first experiment was to observe surface tension created when drops of water are dropped on a penny and determine why a penny could hold so many drops of water before it ran off. The second experiment was performed to observe whether surfactants indeed counteract the properties of water by lowering surface tension of water molecules, and whether the absence of a surfactant could have an effect on the respiratory system. This is…...

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References

Han, S. & Mallampalli, R. K. (2015). The Role of Surfactant in Lung Disease and Host Defense against Pulmonary Infections. Ann Am Thorac Soc, 12(5), 765-774.

National Library of Medicine (2017). Surfactant Dysfunction.  https://medlineplus.gov/genetics/condition/surfactant-dysfunction/ 

Water Science School (2019). Surface Tension and Water. Georgia State University.  https://www.usgs.gov/special-topics/water-science-school/science/surface-tension-and-water

Essay
Lab Report Template Save As
Pages: 2 Words: 656


After gathering the supplies together, the salt, water, and paper (torn into smaller strips) were mixed in a blender until the consistency of the liquid was entirely homogenous. Once this consistency was reached, the liquid was poured into a beaker through a strainer in order to remove any solids remaining, and the liquid soap was then mixed in. This mixture then sat to rest for several minutes before being divided amongst the test tubes, and a pinch of the meat tenderizing powder was added to the liquid in each tube and carefully stirred using a cotton stick. A small amount of isopropyl alcohol was then poured into each test tube, and the test tubes were examined for the white string substance at the border of the alcohol and the water mixture that is DNA.

esults:

Despite expectations, the DNA substance did form in each of the test tubes, suggesting that ample organic…...

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References:

Fuller, R. (2010). "The uses of genetic testing." Accessed 4 August 2010.  http://ezinearticles.com/?The-Uses-of-Genetic-DNA-Testing&id=427631 

HGP. (2010). "DNA forensics." Human genome project. Accessed 4 August 2010.  http://www.ornl.gov/sci/techresources/Human_Genome/elsi/forensics.shtml 

Reeves, D. (2008). "Plant DNA 'barcode' identified." Medical news today. Accessed 4 August 2010.  http://www.medicalnewstoday.com/articles/96369.php

Essay
Drosophila Lab Report During the Mendel's Rule
Pages: 6 Words: 1684

Drosophila Lab eport
During the Mendel's rule in 1900, Drosophila melanogaster became a favorite model organism for genetics research. The life cycle of the fruit flies or Drosophila melanogaster, consists of the egg-larva-pupa-adult (male and female). The chromosomes are detailed structurally in comparison to the other normal chromosomes. The chromosomes also have the capacity to show during interphase when normal chromosomes are invisible. The main objective of this experiment is to oversee setup of reciprocal crosses with pure-breeding males and virgin females in relation to the application of Drosophila melanogaster.

Following the rediscovery of the Mendel's rule in 1900, Drosophila melanogaster became a favorite model organism for genetics research. The model (fruit fly) enhanced its popularity among the genetic researchers because of several reasons. One of the essential reasons for its popularity is because of the essence of small flies with increased rearing abilities within the context of the laboratories. This is…...

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Reference

Capy, P., Gibert, P., & Boussy, I. (2004). Drosophila melanogaster, Drosophila simulans: So similar, so different. Boston: Kluwer Academic.

Essay
Enzyme Lab Report This Study
Pages: 4 Words: 1236

The solution started out as blue/black at T=0. There was no further change observed until T=3 minutes where the solution began turning a lighter color. At T=4.5 it changed to amber and began to lighten. At T=8.5 it changed to clear and the starch was used up.
Room Temperature Tube

The second test tube was allowed to maintain a room temperature of 24 degrees Celsius the room temperature tube had an almost instant reaction at T=.5 minutes. By T=1 minute, the solution had lightened significantly. At T=1.5 minutes, the starch was degraded and the solution was clear. This was by far the fastest reaction.

80 Degrees Celsius, Hot ater Bath

The first hot water bath solution was brought and maintained at a temperature of 80 degrees. The theory is that this test tube should react even faster than the previous test tube because of the added heat. At T=1.5 minutes, the solution was…...

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Works Cited

Jaeger KE, Eggert T. (2004). "Enantioselective biocatalysis optimized by directed evolution." Curr Opin Biotechnol. 15(4): 305 -- 13.

Jiang L, Althoff EA, Clemente FR (2008). "De novo computational design of retro-aldol enzymes."Science. 319(5868): 1387 -- 91.

Silverman, Richard (1995). "Mechanism-based enzyme inactivators." Methods in Enzymology. 249: 240-83.

Smith (1997). Oxford dictionary of biochemistry and molecular biology. Oxford: Oxford University Press.

Essay
Chromatography Lab Report a Single Dot of
Pages: 2 Words: 586

Chromatography Lab Report
A single dot of black ink was placed ae" from the bottom of a coffee filter strip, from one of five pens, and it was reserved as the control sample. The letter "G" was marked at the top of this strip in pencil to represent "the guilty" party.

Five coffee filters strips were numbered 1-5 and a single black dot was then put on each of strips in approximately the same position as the reserved strip.

Each dot was made with one of the five black pens. Each pen used was made by a different manufacturer. No indelible or permanent markers or pens were used.

A glass jar with 2" of alcohol was prepared

Each strip, in turn, was taped to a pencil at one end, and placed over the jar of alcohol so that the end of the strip touched the alcohol and had 3" of dry strip above the alcohol…...

Essay
Dichotomous Botany Lab Report Field Sample Having
Pages: 2 Words: 858

Dichotomous Botany Lab eport: Field Sample
Having lived in Florida for a long period of time, I am quite familiar with many of the plants that are in many of the surrounding areas. As such, I would hypothesize that there would be mostly fern plants, or Pteridophytes, plant samples identified in a typical Florida backyard. These often grow near fences and water locations, like the ponds that are common in Florida. Flowering plants, or angiosperms would most likely follow, with a lesser number of gymnosperms because of the sheer size of such trees, and relatively no bryophytes.

Location of Sample

Physical Description

Phylum

Skeleton Fork Fern (Psilotum nudum)

The sample was found outside of the fenced boundary of the yard. There is a small pond that is in the center of several houses just outside the enclosed portion of the yard. Along one of the inlets of the pond, there were several smaller broad-beech ferns. Knowing…...

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References

Stern, Kingsley R., Jansky, Shelley, & Bidlack, James E. Introductory Plant Biology. 9th ed. McGraw Hill. 2003.

Essay
Lab Report Tonicity Osmosis in Red Blood Cells
Pages: 7 Words: 2068

Tonicity Osmosis in Red Blood CellsIntroductionGorter and Grendel (1925) had been the first to discover that the cell membrane is bilayer. Singer and Nicolson (1977) advanced the cell membrane structure by describing the existence and placement of proteins in the bilayer and developing the fluid mosaic model. The phospholipid bilayer is permeable to some substances in the mammalian cell membrane, such as oxygen and a small nonpolar molecule, and partially permeable to water. Still, some substances, such as charged ions and glucose, are impermeable without protein channels and transporters.The phrase selectively permeable membrane was coined to describe the combination of phospholipid and protein characteristics (Goodhead & MacMillan, 2017; Gorter & Grendel, 1925). The tonicity of extracellular fluids, and thus the size and shape of cells resulting from osmotic water flow, is determined by the extent to which solutes may pass the cell membrane. The function and structure of cell membranes…...

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References

Argyropoulos, C., Rondon-Berrios, H., Raj, D. S., Malhotra, D., Agaba, E. I., Rohrscheib, M., Khitan, Z., Murata, G. H., Shapiro, J. I., & Tzamaloukas, A. H. (2016). Hypertonicity: Pathophysiologic Concept and Experimental Studies. Cureus, 8(5), e596.

Goodhead, L. K., & MacMillan, F. M. (2017). Measuring osmosis and hemolysis of red blood cells. Advances in physiology education, 41(2), 298-305.

Gorter, E., & Grendel, F. J. E. M. (1925). On bimolecular layers of lipoids on the chromocytes of the blood. The Journal of experimental medicine, 41(4), 439.

Essay
Lab Report Bread Mold Revised the Purpose
Pages: 4 Words: 1575


About the Photographs

The next page shows both the refrigerated bread (top) and the bread stored at room temperature. The slices were taken out of the plastic bags to eliminate glare when photographed. The refrigerated slices were easy to separate and none showed evidence of mold. The room temperature slices could not be separated without breaking the bread; mold and moisture made the bread fall apart when it was picked up outside the bag.

eferences

Abu-Ghoush, M., Herald, T.J., Dowell, F., Xie, F., Aramouni, F.M., & Madl, .

Effect of preservatives addition on the shelf-life extensions and quality of flat bread as determined by near-infrared spectroscopy and texture analysis.

International Journal of Food Science & Technology 43 (2), pp. 357-364.

etrieved from Academic Search Premier database December 23, 2010.

Fernandez, U., Vodovotz, Y., Courtney, P., & Pascall, M.A. (2006). Extended shelf life of soy bread using modified atmosphere packaging. Journal of Food

production 69 (3), pp. 693-698.

Karagolu, M.M.,…...

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References

Abu-Ghoush, M., Herald, T.J., Dowell, F., Xie, F., Aramouni, F.M., & Madl, R.

Effect of preservatives addition on the shelf-life extensions and quality of flat bread as determined by near-infrared spectroscopy and texture analysis.

International Journal of Food Science & Technology 43 (2), pp. 357-364.

Retrieved from Academic Search Premier database December 23, 2010.

Essay
Gram Lab Gram Staining Lab the Gram
Pages: 3 Words: 801

Gram Lab
Gram Staining Lab

The Gram staining of bacteria is one of the most important tests in identifying specific bacterial strains, and is usually the first test performed when medical or research laboratories need to identify an unknown bacteria (Xu, 1997; AACC, 2011). Named for the inventor of the technique, Hans Christian Gram, Gram staining first came into use in Gram's own Danish medical and research practice in 1882, and became very widely known and used after the details of the technique were published in 1884 (Xu, 1997). Though some adjustments can be made to the original technique without losing effectiveness, the basic process of Gram staining has remained unchanged for over a century, and is as effective and essential a test today as it was in the latter half of the nineteenth century (Xu, 1997).

Simply put, the Gram staining test often (though not always) allows the researcher to determine the…...

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References

AACC. (2011). Gram Stain. American Association for Clinical Chemistry. Accessed 14 September 2011.  http://labtestsonline.org/understanding/analytes/gram-stain/tab/test 

Xu, G. (1997). Gram stain. University of Pennsylvania Health System. Accessed 14 September 2011.  http://www.uphs.upenn.edu/bugdrug/antibiotic_manual/gram.htm

Essay
Social Science Research Lab 4 Quantitative Data
Pages: 2 Words: 428

Social Science esearch
Lab 4: Quantitative Data Analysis

Univariate Analysis

Examine your data and complete the following:

SHOT NAME

LONG NAME

% Yes

CIGEVE

EVE SMOKED A CIGAETTE

ALCEVE

EVE HAD DINK OF ALCOHOLIC BEVEAGE

MJEVE

EVE USED MAIJUANA/HASHISH

COCEVE

EVE USED COCAINE

CKEVE

EVE USED CACK

HEEVE

EVE USED HEOIN

ISEX

IMPUTATION EVISED GENDE

The sample in this study is __50____ % male and ____50__ % female.

Write a brief sentence describing the pattern of drug use by those surveyed in this study. Hint: Which drugs are more frequently used than others? Try using the data (%) in your description.

According to the results given above, many people are currently using illicit drugs of varying kinds. The statistics show that alcohol is the substance, which is most abused by a percentage of 81.6 out of 100 often in form of beverages. 36.9% of people used marijuana while cocaine, crack, and heroin are used at 12.3, 22.4, and 1.4% respectively (National Household Survey on Drug Abuse, 2001, 2012).

Bivariate Analysis

Hypothesis: Men are more…...

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References

National Household Survey on Drug Abuse, 2001 (2012, August 18). National Household Survey on Drug Abuse, 2001 . SDA 3.5: Tables. Retrieved August 16, 2012, from  http://www.icpsr.umich.edu/cgi-bin/SDA/SAMHDA/hsda3 

Soodeen, F. (2008, January 22). Men 'drink far more than women' . BBC News. Retrieved August 16, 2012, from  http://news.bbc.co.uk/2/hi/health/7201874.stm

Essay
Business Report Medtronic Mdt Is Focused on
Pages: 4 Words: 1237

Business eport
Medtronic (MDT) is focused on manufacturing and marketing devices used in health care. The different kinds of products that are sold by the company include: cardio vascular / ear / throat / gastroenterology merchandise, surgical equipment, implants and imaging systems. The company is based out of Minneapolis, Minnesota and was incorporated in 1949. ("Medtronic," 2012)

Abbott Labs is a health care products manufacture. They are concentrating on the distribution and sale of merchandise in a number of segments. The most notable include: pharmaceuticals, diagnosis systems / tests, stents, generic drugs and medical management software. The firm was established in 1888 and is located in Abbott Park, Illinois. ("Abbott Labs," 2012)

Financial statement and ratio analysis on both companies.

The financial statements and ratio analysis are showing how both firms have strong fundamentals. The below table is contrasting these factors for Medtronic and Abbott Labs.

Financial Information and atios of Abbott Labs vs. Medtronic

Company

EPS

evenues

Assets

Liabilities

PE…...

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References

Abbott Labs. (2012). Stock Charts.com. Retrieved from:  http://stockcharts.com/h-sc/ui 

Abbott Labs. (2012). Yahoo Finance. Retrieved from:  http://finance.yahoo.com/q/pr?s=ABT+Profile 

Abbott Laboratories 10Q. (2012).

Abbott Reports Strong Second Quarter Results. (2012). Abbott.com. Retrieved from:  http://www.abbott.com/news-media/press-releases/abbott-reports-strong-second-quarter-results.htm

Essay
Macroeconomics Abbott Labs and Macroeconomics it Is
Pages: 3 Words: 1016

Macroeconomics
Abbott Labs and Macroeconomics

It is a fact that the recent economic downturn affected every individual and company in some way, but companies that had solid business plans prior to the start of the crisis were better able to weather the financial storm. For example, a company that had a diverse range of business that included both products that depended the level of a consumer's disposable income and another group of products that are indispensable would probably be able to meet its financial goals despite global economic issues. Such a company is Abbott Laboratories. Because the primary business of Abbott is producing medical devices, pharmaceuticals and tests that are widely considered standards in the medical community (Abbott Laboratories, 2012), the company has been able to maintain its profitability throughout the economic crisis. However, macroeconomic indicators do have an effect on the continued economic viability of the company and they can provide…...

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References

Abbott Laboratories. (2012). 2011 annual report. Retrieved from   phphttp://www.abbott.com/static/content/microsite/annual_report/2011/yearinreview .

Angell, M. (2012). Excess in the pharmaceutical industry. Canadian Medical Association Journal, 171(12).

Barnes, R. (2012). Economic indicators: Overview. Retrieved from  http://www.investopedia.com/university/releases/#axzz23ADx6TVd 

Roerhig, C., Turner, A., Hughes-Cromwick, P. & Miller, G. (2012). When the health cost curve bent: Pre-recession moderation in healthcare spending. New England Journal of Medicine. Retrieved from  http://www.nejm.org/doi/full/10.1056/NEJMp1205958

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