Sciences Essay Examples and Topics. Page 20

4,745 samples

Physics 51-Electricity and Magnetism

The objective of this experiment was to investigate the relationship between the electric potential and the electric field and hence, determine the electric field pattern and strength E between a pair of parallel conductors.
  • Subjects: Physics
  • Pages: 4
  • Words: 1393

The Factors That Affect Glycogen Synthase Kinase 3-β

The authors hypothesize that the factors that affect Glycogen synthase kinase 3- and 5-HT activities might interact in humans in the way that the genetic inhibition of the GSK3- counteracts the genetic inhibitions pathways of [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 594

Preparation and Properties of an Aqueous Ferrofluid

A ferrofluid is a liquid that contains very small pieces of a magnetic substance and hence acquires its magnetic properties when placed in a magnetic field. A ferrofluid primarily consists of small particles which are [...]
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1385

Kiwi Fruit: Nutrition and Biological Molecule

The kiwi fruit is botanically referred to as Actinidia deliciosa and the common name used is Chinese gooseberry. The primary function of starch is derivation of energy.
  • Subjects: Biology
  • Pages: 2
  • Words: 594

Inhibiting Grass Growth by Salt

The practice results in an increase in concentration of salt in the soil and/or accumulation of salt on the foliage. Road salt inhibits the growth of grass.
  • Subjects: Biology
  • Pages: 2
  • Words: 591

Exfoliation and Dezincification of Corrosion

This type of corrosion is mostly found in brass, which is an alloy of copper and zinc. Cathodic protection is an electrochemical process used in reducing the detrimental effects of densification corrosion.
  • Subjects: Geology
  • Pages: 6
  • Words: 932

Qualitative Research and Evaluation Methods

The research endeavours to achieve a sample that bears the characteristics of the entire residents of Riyadh. This reveals that this is a purposive sample since it targets a population that possesses explicit requirements, solely [...]
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 598

Counterarguments to Human Cloning

One of the most controversial is the attempt to reproduce an exact replica of a human being through the process of cloning.
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 851

Energy Intake and Expenditure Analysis

Determination of relationship between energy intake and energy expenditure is therefore important aspect towards determination of maximal energy expenditure, optimization of fat expenditure as secondary source of energy after carbohydrates and capacity to achieve energy [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1366

Consideration of the Reproductive Systems

In fact, reproduction in living things is classified as asexual or sexual depending on the nature of the reproduction. Cell division is essentially the process that occur in the cell, which lead to division or [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 570

Ethics and Peer Review in Science

In the reference materials, the scientists have a central obligation of reporting the estimated volume of species. Estimation of the number of species is a tough challenge due to the enormous array of organisms.
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 586

Evidence for Biological Evolution

The interconnection between life and evolution remained a mystery until the radiance named Charles Darwin illuminated the scientific world with a novel piece of work titled "On the Origin of the Species using Natural Selection [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 563

Statistics: Data and Business Decision-Making

This paper aims to find out the type of customers who patronize the business in terms of gross annual income, gender, marital status, family status, employment status, and distance from the store. Different customers see [...]
  • Subjects: Statistics
  • Pages: 10
  • Words: 2766

Modern East Asians and Denisovans Share Genetic Material

The researchers did not explain the specific mode of delivery of the genetic material through hybridization thus it must be assumed that the Denisovans in Siberia were able to travel to Southeast Asia and intermarry [...]
  • Subjects: Anthropology
  • Pages: 6
  • Words: 1671

Structure and Evolution of Plants

The brown color they have is derived from the presence of brownish carotenoids they have in their cell chloroplasts. Phototropism has been defined as the tendency of plants and some fungi to grow in a [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 1126

Uranium Mining and Issues Tied to It

Because the effects of radiation can be far reaching on the health of the workers and the people living in close proximity to areas where uranium is mined authorities should ensure that they provide information [...]
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1863

Evolution: Debunking Darwin’s and Lincoln’s Contributions

Although this statement is intended to demonstrate how life has generally evolved owing to the immense contributions of Darwin in the sciences and Lincoln in politics and democracy, it lacks merit as there were other [...]
  • Subjects: Evolution of Humans
  • Pages: 4
  • Words: 1190

Asbestos: History, Uses and Harmful Effects

The serpentine asbestos is usually white in color and is found in almost every part of the world. The use of asbestos is still common in China and Russia.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 895

Flash Chromatography Overview and Analysis

Pour the elution solvent to the silica gel then, using a gas pump, force the solvent through the silica. Without disturbing silica's top surface, the dissolved sample in the elution solvent is then gently applied [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 607

Religious vs Scientific Views on Genetic Engineering

With the need to increase the global economy, the field of agriculture is one among the many that have been used to improve the commercial production to take care of the global needs for food [...]
  • Subjects: Genetics
  • Pages: 3
  • Words: 826

Description of the Human Auditory System

The outer part of the ear is the pinna also referred to as concha. It is a cavity that resonates with the sound waves from the pinna to the middle ear.
  • Subjects: Biology
  • Pages: 3
  • Words: 858

What Is Mitochondria and What Functions Does It Have

The ratio of the proteins found in the mitochondria is the same as that found in the eukaryotic cell. The space between the inner and outer membrane has the same amount of ions and sugars [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1095

Indirect Definition of the Unit of a Penny Weight

The beaker containing all the available pennies and, also the beaker plus half the number of pennies were to be separately weighed and recorded initially before the commencement of the experiment.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 688

Tensile Testing of Steel Bars

The behaviors of stress-strain curves vary in steel owing to the degree of carbon concentration in the compound. The yield point is defined by upper and lower yield points with the later happening when the [...]
  • Subjects: Formal Sciences
  • Pages: 2
  • Words: 592

Biological Insect Control: Augmentation

However, I need to clarify that the control is only due to the natural enemy and not the progeny as no reproduction of the natural enemy is expected.
  • Subjects: Biology
  • Pages: 12
  • Words: 1260

The Gay Gene: Understanding Human Sexuality

If this gene existed and it was similar to a gay gene, it would explain the difference in gay people. If this happened, there would be a great change in the way gay people are [...]
  • Subjects: Genetics
  • Pages: 4
  • Words: 1219

Evolutionary Theory: Misconceptions Analysis

This is why scientists argue that when it comes to evolution, it is both a fact and a theory. It is a random mass of code that may be serving a certain purpose in the [...]
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 824

Inhibitory Influence of Salt on Grass Growth

Prediction: It was predicted that if salinity was increased in certain regions of the growth medium, then growth rate in such regions was likely to be low, and vice versa.
  • Subjects: Biology
  • Pages: 2
  • Words: 508

Honey Bees: Reasons of Disappearance

The disappearance of bees from beehives is correlated to the occurrence of both the virus and the fungus at the same time thus the interaction of these two pathogens play a crucial role.
  • 5
  • Subjects: Zoology
  • Pages: 4
  • Words: 1289

Lipids: Fatty Acids and Glycerols

The membrane, made up of lipids, facilitates the fluid movement and transportation of the vital elements of the cell. A lack of these vitamins in the body leads to various diseases and conditions.
  • Subjects: Biology
  • Pages: 3
  • Words: 916

Enzymology and Catalytic Mechanism

The main substrate of the enzyme Fructose B or Fructose-1-P Aldolase is Fructose-1-Phosphate. Following graphs depict the effect of enzyme Aldolase B on the amount of Ea required for breakdown of fructose to Glyceraldehyde and [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1599

Coffee in the Development of High Blood Sugar

These high levels of glucose in the blood may even lead to the death of the victim. The net effect of this condition is high glucose levels in the blood plasma of the victim.
  • Subjects: Biology
  • Pages: 4
  • Words: 1126

Nanoparticle Titanium Dioxide (Tio2) Effect on Health

On the other hand, the small size of titanium dioxide nanoparticles is also a risk factor because they can easily penetrate the cells, resulting in cell photocatalysis and damage to DNA upon exposure to the [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 933

Transgenic Animals: Methods and Reasons For Creating

Animal models have been used throughout the history of biology to facilitate the understanding of pathogenesis mechanisms, and in the development of effective therapies. The advantage of this method is in its ability to culture [...]
  • Subjects: Genetics
  • Pages: 8
  • Words: 2234

Developmental Biology: DNA and MicroRNA

This is augmented by the strengthening of patterns and the increase in the number of lateral cells that are crucial for the process to be successful.
  • Subjects: Biology
  • Pages: 4
  • Words: 1179

Aspects About Zebrafish – Eco, Physio, and Behavior

The development of the embryo of a zebrafish begins immediately after the hatching of the egg and if the eggs are not fertilized, the development of the embryo stops after a few cell divisions.
  • Subjects: Biology
  • Pages: 5
  • Words: 1400

Deoxyribonucleic Acid: Review

The goals of this experiment are: to enable us to become well acquainted with the physical characteristics of DNA by separating it from living tissue, and the use of each stage in the isolation process [...]
  • Subjects: Biology
  • Pages: 6
  • Words: 1666

Interesting and Relevant Applications of DNA Technology

Week One Activities Learning Outcomes DNA Technology in Laboratory Medicine Diagnostic Relevance and future prospects. Interesting and Relevant Applications of DNA Technology Areas Most striking and need further review in my career – modernized to detect pathogens from the clinical samples in the diagnostic hospitals. Preferred method of identifying organisms based on genomic make up. […]
  • Subjects: Genetics
  • Pages: 10
  • Words: 2982

New Generation of Microbe Hunters

The greatest fear of the doctors was the fear that the same thing could happen in their area and they would not be able to help the patients since the strain of the bacteria had [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 605

Fourier Transformations and Images Analysis

The Fourier transformation that results from a rectangular image is similar to that of the x-ray image. It can be observed that noise is random in the circle image.
  • Subjects: Physics
  • Pages: 3
  • Words: 976

Lyme Disease: What Is the Mystery Behind It?

Denying patient's treatment simply because long-term treatment is expensive and the symptoms are always likely to disappear after about a month of treatment is quite unethical.
  • Subjects: Genetics
  • Pages: 2
  • Words: 333

Uromastyx Aegyptius Salt Gland During Drought

Furthermore, the group of researchers pay attention to the fact that the "balance of water and ions is partly linked to excretion, the removal of metabolic wastes from the body", as a result, the role [...]
  • Subjects: Zoology
  • Pages: 4
  • Words: 1094

Statistical and Probability Analysis of Staff

The implementation of statistical analysis, in this case, takes the form of determining to what extent specific employee training programs can derive the greatest amount of performance from employees while determining the necessary cost of [...]
  • Subjects: Statistics
  • Pages: 4
  • Words: 1097

Bio-Refinery Processes and Product

In order to understand the potential of the spoiled dates in energy production, it is necessary to review the types of date seeds to determine their chemical composition.
  • Subjects: Biology
  • Pages: 2
  • Words: 603

Identifying Lyme Disease Host Species

This clearly shows that the reservoir potential of mice is high and hence an assertion that mice are the major hosts of B.burgdorferi and immature ticks.
  • Subjects: Biology
  • Pages: 2
  • Words: 586

Genetic Counseling – Tay Sachs Disease

In this case, there is a 25% likelihood of passing the gene to their children. This would be effective in preventing further passing down of the disease to their offspring.
  • Subjects: Genetics
  • Pages: 2
  • Words: 555

Cell Theory, Functions, Discoveries

The basic premises of cell theory include that the basic unit of structure in all living organisms is the cell. The other premise in cell theory is that the functionality of an organism is a [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 742

Physical Lab Experiment on Equilibrium of Objects

Through considering the measurements of the bodies with regular shapes, it was easy to locate the C.O. As a result, the body cannot balance if the pivot is not put at the center of gravity.
  • Subjects: Physics
  • Pages: 4
  • Words: 923

Viral Inhibitor of Human Caspases

This is especially so given the fact that throughout the development of this nematode, the number of cells in the organs is highly controlled and almost all mature C.elegans contain the same number of cells [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 879

Constant Acceleration: Newton’s Second Law of Motion

This experiment is aimed at verifying Newton's second law of acceleration by investigating the acceleration of a glider on an air track acted on by an unstable force and evaluating the amount of work performed [...]
  • Subjects: Physics
  • Pages: 4
  • Words: 1313

Space Exploration Mission: Mars Reconnaissance Orbiter

The historical development of Mars Reconnaissance Orbiter is anchored on the dual mission which was targeted for in the 2003 Mars launch window; nonetheless, within the course of the drafting the proposal the MRO was [...]
  • Subjects: Space Studies
  • Pages: 11
  • Words: 3042

Camels in UAE and Australia

As of today, two species of camels are known to scientists: the dromedary and the Bactrian camel. The small population of Bactrian camels can still be found in the wild, but all the dromedaries are [...]
  • Subjects: Zoology
  • Pages: 4
  • Words: 1169

Liquid Mirror Telescope Technology

The history of liquid mirror telescope can be traced to Ernesto Capocci of the Naples Observatory in 1850, who described the concept of a parabolic mirror formed by rotating a vessel of liquid mercury.
  • Subjects: Physics
  • Pages: 4
  • Words: 1105

Toxicology: Is Water a Toxic Substance?

It is well known that the solubility of ethanol in water is unlimited. Toxicity could be a characteristic of the formation of the reactive oxygen species which can also be present in water.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 550

The Effect of Acetone on Wheat Seed Germination

The experiment was carried out to study the effect of Acetone on the germination of wheat seeds. As a result, the study focused on the effect of acetone on the germination of wheat seeds.
  • Subjects: Biology
  • Pages: 6
  • Words: 1704

Positron Emission Tomography (PET)

The interaction between the photons emitted in PET and tissues is also discussed in the article. In addition, the time window that is utilized determines the detection of these events.
  • Subjects: Physics
  • Pages: 2
  • Words: 561

Cells, Tissues, and Major Organs Systems

The report will cover the structure and functions of animal cells and organelles. It will also address the structure and functions of tissues and main organs of the body.
  • Subjects: Biology
  • Pages: 8
  • Words: 2269

Seawater vs. Brackish Water Reverse Osmosis

The concentrations of seawater and brackish water differ considerably; hence, there is a distinction involving the concentrate acquired from seawater desalination plants and brackish water desalination plants.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 539

Desalination: Biofouling of Seawater Reverse Osmosis

Membrane fouling occurs as a result of the accretion of substances on/in/or near the membrane. More so, during desalination, the process is carried out in a way similar to the treatment of drinking water.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 821

Richard Preston’s Idea of Nature

In addition, he has authored a number of books such as 'First Light', 'American Steel', 'The Cobra Event', 'The Hot Zone', 'Wild Trees' and 'The Demon in the Freezer'.'The Hot Zone' was published in 2002 [...]
  • Subjects: Biology
  • Pages: 6
  • Words: 1774

Safeguards and Security in Nuclear Waste

Geological repository of nuclear spent fuel is the nuclear wastes keeping technology popular in the majority of countries around the globe.
  • Subjects: Geology
  • Pages: 5
  • Words: 1385

Psychiatric Genetics. Epigenetics and Disease Pathology

The switching on and off of the imprinted genes is the same regardless of the parental origin. The genome-wide DNA analysis revealed that there was a difference in DNA methylation of the glucocorticoid receptor gene [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1503

Lancelets’ Adaptation and Environment

The first describable organism in the evolutionary phylogeny of lancelets is the 'Branchiostoma Lanceolatum', a molluscan slug of the Limax species.
  • Subjects: Zoology
  • Pages: 2
  • Words: 572

The Essence of de Broglie Waves

To clarify some of these issues, this paper explains the hypothesis underlying the conception of de Broglie waves, investigates the nature of de Broglie waves, and highlights the principles surrounding the generation of the waves.
  • Subjects: Physics
  • Pages: 3
  • Words: 876

Child Demographic Census and Changes in the US

Whites comprise of the highest percentage yet have negligible increase in the population in relation to non-whites and the minority groups. However, the number of children accessing the early childhood education and care is high [...]
  • Subjects: Statistics
  • Pages: 7
  • Words: 1961

The Photosynthetic Rate in Terrestrial Plants

In this regard, one is expected to establish the necessities of photosynthesis and discover the requirement of carbon dioxide and light for oxygen evolution.
  • Subjects: Biology
  • Pages: 4
  • Words: 1232

Calculating the Probability of Simple Event

Table 1: The amount of time I spend cooking meals each day From the data, the longest time was spent cooking on days when I had three meals in the house on days 1 and [...]
  • Subjects: Statistics
  • Pages: 2
  • Words: 566

Extraction of Chlorophyll A

The objective of this lab was to extract and measure the quantity of chlorophyll-a present in phytoplankton and use it to estimate the biomass of phytoplankton.
  • Subjects: Biology
  • Pages: 3
  • Words: 943

Heredity and the Different Types of Inheritance

The first of them would appear in the course of a child's development by inhibiting the action of the latter. It is possible that the child would inherit the dominant qualities of one of the [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 651

Hypothesis Testing and Type Errors

The primary goal of the first part is to conduct the sufficient regression analysis to determine the interdependence and relationship between the variables.
  • Subjects: Statistics
  • Pages: 3
  • Words: 828

City Centre Decline, Revitalisation in Riyadh

This paper provides a review of literature in reference to the issues of city centre decline, revitalisation, and people's perceptions focusing on the city centre of Riyadh.
  • Subjects: Countries Studies
  • Pages: 6
  • Words: 1666

Microbiologic Exposure

The transmission of disease requires the interaction of the environment, an agent, and the host of the disease. The following essay highlights some of the infections that may be acquired from an individual coughing in [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 564

Daily Low Temperatures Across the Three Cities

Are there any differences in the daily low temperatures across the three cities? H0: ltNY = ltLA = ltCH Alternative hypothesis: There is a difference in the daily low temperatures across the three cities.
  • Subjects: Statistics
  • Pages: 8
  • Words: 1652

Effect of MgCl2 and NaCl Solutions on the Germination

Moreover, in the first and the third groups, the wheat seeds were placed in wetted paper towels whereas in the second and the fourth groups, the wheat seeds were placed on top of the wetted [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 2033

“What’s the Fuss about Stem Cells?”

The primary goal of this essay is to emphasize the importance of the research of the stem cells, provide a precise definition, and explain their functions in the body.
  • Subjects: Biology
  • Pages: 2
  • Words: 581

Breath With the Strength of Cabbage

The extract, which is the blue solution obtained from cabbage, was poured into another beaker and the pieces of the boiled cabbage were discarded.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1308

GEP (Gene Expression Profiling) on MM Prognostication

GEP is traditionally performed in thirty-nine steps, which include the identification of the experimental design, the collection of genes, identification of samples, array preparation, provision of a targeted synthesis, hybridization, transformation of the key data, [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 595

Principles of Nervous System in Animals

The procession and interpretation of the sensory organs is then effected by the nervous system to facilitate an understanding and interpretation of the surrounding. Cephalization consists of the actual concentration and accumulation of the functions [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 873

Herbicide Resistant Weeds: Causes and Prevention

Herbicides are used by farmers to control the population of specific weeds in their farms, but genetic mutations in the part of some weed species can lead to their development of resistance against the herbicides.
  • Subjects: Agriculture
  • Pages: 2
  • Words: 568

Systems of Linear Equations – Cramer’s Rule

In chapter three, Cramer classifies curves concerning shapes, and it is here that he introduces his famous 'Cramer's Rule.' Here, Cramer applies several arbitrary factors in an equation of the order n, to test his [...]
  • Subjects: Math
  • Pages: 2
  • Words: 623

Holography Construction and Application

The reference beam is represented by the electric field as One of the distinct properties of a hologram is that the hologram gets light from each part of the object in the setting.
  • Subjects: Physics
  • Pages: 2
  • Words: 590