Sciences Essay Examples and Topics. Page 23

5,114 samples

Strontium: Physical and Chemical Properties

The rest are artificial isotopes and, are a consequence of radioactivity. The table below shows a summary of the radiological properties of strontium isotopes.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 865

Late Phase of HIV Type 1 Replication

The Late Phase of HIV type 1 replication involves the assembly of Gag proteins with the plasma membrane of hematopoietic cells.
  • Subjects: Biology
  • Pages: 4
  • Words: 1268

Recent Advances in Artificial Photosynthesis

Specifically, scientists strive to use the known and change them into "functional, efficient, synthetic systems that will tap the endless supply of energy coming from the sun".[1] Researchers believe that artificial photosynthesis can work on [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1392

Ethical Issues Behind Feeding People With GMOs

Genetic engineering is the amendment of the genetic composition of a particular organism or simply the adjustment of an organism's transmissible matter in a bid to produce desirable characteristics.
  • Subjects: Genetics
  • Pages: 10
  • Words: 2814

Spotlight on Cell Differences: Animal and Plant Structures

Animal Cell Number Cell Structure Description and Function 1 Nuclear pore It is a microscopic channel that allows certain materials in and out of the nucleus (Boal & Boal, 2012). 2 Chromatin (DNA) It is made up of DNA and proteins and packages DNA into a smaller volume to fit in the cell. It serves […]
  • Subjects: Biology
  • Pages: 2
  • Words: 590

The Science Behind Bacterial Aging

A bacterium is one of the organisms that undergo asymmetric division of cells hence does not undergo aging. In this bacterium, it is evident that the DNA process stopped because the stalk cell turned out [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 592

Establishing Organ Systems Roles

Endocrine System Number Name of the Organ or Part Hormone(s) Produced or Secreted 1 Parathyroid gland Parathyroid hormone (Gould, 2005). 2 Thyroid gland Thyroxine and calcitonin. 3 Trachea No hormone is secreted. It is a supporting structure. 4 Pineal gland Secretes melatonin. 5 Hypothalamus Produces ADH and oxytocin, regulatory hormones for the anterior pituitary. Produces […]
  • Subjects: Biology
  • Pages: 2
  • Words: 582

Understanding Emerging Diseases

Some of the diseases are spread when the agents are passed on from animals to humans through a process referred to as zoonosis.
  • Subjects: Biology
  • Pages: 2
  • Words: 559

Overview of Polyether Ether Ketone

The exceptional properties of polymers are determined by the extent and the organization of the molecular chain. According to Kurtz, the melting temperature is an indicator of the thickness and flawlessness of crystals.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1681

Will Biologics be the Main Drugs of the Future?

In generally, the uniqueness of biotechnology drugs or biologics as they are commonly referred to has to do with the fact that biologics help to improve the state of a patient's body through a natural [...]
  • Subjects: Biology
  • Pages: 18
  • Words: 4960

Self-Awareness to Being Watched

The researchers used a good hypothesis to conduct the study. The researchers used videotapes in order to change the behaviours of the targeted subjects.
  • Subjects: Scientific Method
  • Pages: 3
  • Words: 913

GE Taps into Coolest Energy Storage Technology around

The reaction occurs the other way round during the discharge process where the sodium ions shift to the cathode reservoir through the separating plate. In addition, the energy saving system is designed to enable monitoring, [...]
  • Subjects: Physics
  • Pages: 3
  • Words: 826

Gene Expression Using Quantitative Real Time PCR

The establishment of the exact products of the expression of certain genes calls for specialized molecular analytical procedures. This experiment had an objective to determine the gene expression levels of the genes encoding CHOP/GADD153, BiP [...]
  • Subjects: Genetics
  • Pages: 4
  • Words: 1104

Physics: Sliding Bubble Dynamics

In general, when the bubble rises in a viscous fluid freely, the surface tension force attempts to maintain the initial spherical shape of the bubble while buoyancy forces the bubble to rise in the direction [...]
  • Subjects: Physics
  • Pages: 8
  • Words: 4075

Progress and Recent Trends in Biofuels

The issue of biofuels has been raising heated debates in the wake of the challenge of global warming, the ever-increasing energy consumption, and the rapid reduction of fossil fuels across the world.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 560

Determination of Trace Amount of Cadmium

However, the low quantities of cadmium in the surroundings and the intricacy of the sample matrix obscure the measurement of cadmium levels in salt.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 579

Vibrio Cholerae: Death by Diarrhoea

Although it is widely believed that Vibrio cholerae is a human pathogen, implying that human beings serve as the natural host, it has the capacity to persist and survive in the absence of a human [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 705

Bacterial Diseases of Marine Organisms

The striped dolphin is a highly susceptible host of the bacteria and poses and the most potent reservoir and source of transmission of the infectious agent.
  • Subjects: Biology
  • Pages: 4
  • Words: 1211

Plasma Discharge and its Examples

Here, Chang, Lawless and Yamamoto argue that plasma is the fourth state of matter, which occupies 99% of the universe and consists of particles known as ions, neutrons, and neutrals, which exist in a gaseous [...]
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2752

Researching of the Nafion Resin

Prior to this process, a preliminary process was done where the NR/S-X samples were subjected to a 24-hour drying process inside an oven and at a temperature of 95oC.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1116

Studying the Conductive Polymers

In order to understand the process involved in the synthesis of SY PPV, a schematic presentation of the steps involved and their intermediate products are shown below.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 902

XPD Mutation: Healthcare Issues

A mutation in the XPD helicase hampers the ability of the TFIIH complex to execute its functions because of the increase in the rigidity of the protein.
  • Subjects: Genetics
  • Pages: 2
  • Words: 553

Basal Cell Carcinoma – Symptoms and Causes

The nose also tends to be among the most vulnerable parts, and according to a recent study, "40% of BCC that was diagnosed on the head and neck were adjacent to the nose".
  • Subjects: Biology
  • Pages: 5
  • Words: 1385

The Gene Therapy: Crucial Aspects

In the other common form of gene therapy, the modified gene cells are only corrected in the patient and the next generation does not get to inherit them.
  • Subjects: Genetics
  • Pages: 4
  • Words: 1173

Hydrogen – The Lonely One

My name is Hydrogen, and my name is usually denoted by the letter 'H.' I am the first born in a family of seven and our family name is Group 1. Due to my weight [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 892

Electric Circuits: Investigating the Dangers

To explore the dangers associated with electric circuits, it is necessary that one understands the basics of electric circuit. However, it should be noted that electric shock occurs when there is potential difference created in [...]
  • Subjects: Physics
  • Pages: 4
  • Words: 1115

Spectroscopy and Atomic Spectra

The formation of the atomic spectra occurs when atoms or ions intermittently absorb and emit energy due to the excitation of the electrons.
  • Subjects: Physics
  • Pages: 4
  • Words: 1210

The Regression Analysis: Econometrics Issues

The paper carries out simple regression analysis to establish the relationship between salaries and the number of years the employees have worked in the organization.
  • Subjects: Statistics
  • Pages: 4
  • Words: 1181

Petroleum Refining: Hydrotreatment Process

This is achieved since the process changes the composition of the renewable fuels into a form that is similar to normal fossil fuels used by vehicles.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1688

History of Development and Production of Aluminium

4 Gigawatts is used in this process and this creates a need to improve the productivity of the cell. In the process of developing this investigation, one of the main agendas is to determine the [...]
  • Subjects: Physics
  • Pages: 8
  • Words: 2472

Skin Graft in Tissue Engineering

In this case, tissue engineering seeks to address the problem of organ and tissue failure through the provision of a better and more effective technique such as natural implants, organ mimics that are functional from [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1174

Factors That Affect Enzyme Kinetics

The key role of enzymes is to improve the rates of biological reactions so that they, are well-suited to the requirements of the organism.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1502

Forecast of Genetic Technology

Therefore, this essay forecasts the advancement of genetic technology in the 22nd century in aspects of gene therapy and eugenics with the view of assessing its potential benefits and dangers.
  • Subjects: Genetics
  • Pages: 4
  • Words: 1143

Corrosion Inhibition in Oil and Gas Pipelines

Internal factors lead to corrosion of the inner surfaces of pipelines, whereas external factors cause the destruction of the outer surfaces of pipelines in what is known as external corrosion.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1190

Genetic Male Pattern Baldness

Vertex hair loss: Vertex hair loss can be observed on the top of the head which is crown area and does not touch the hairline of the forehead.
  • Subjects: Genetics
  • Pages: 10
  • Words: 2770

Differentiating the Fungal Phyla

Traditionally, the kingdom Fungi consists of four phyla known as Ascomycota, Basidiomycota, Chytridiomycota, and Zygomycota, though the classification of the fungi has shifted tremendously in recent decades to include Glomeromycota as a new phylum for [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 667

Bitter Taste Receptors Critical Review: A Focus on Tas2r38

The researchers are fascinated by the ability of this compound to be detected by the taste buds of certain individuals and remain undetectable by others. 1To this end, the compound is of profound interest in [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1096

Solar Energy: Review and Analysis

Available literature shows that most commercial CSP plants in Spain and the United States using synthetic oil as the transfer fluid and molten salt as the thermal energy storage technology are able to achieve a [...]
  • Subjects: Astronomy
  • Pages: 3
  • Words: 855

Can a Nuclear Reactor Explode Like an Atomic Bomb?

The fact is that a nuclear reactor is not designed in the same way as an atomic bomb, as such, despite the abundance of material that could cause a nuclear explosion, the means by which [...]
  • Subjects: Physics
  • Pages: 2
  • Words: 652

Chemical Transection Analysis

It has been demonstrated that most neurotoxins affect the cell bodies of neurons in both the PNS and the CNS. The delayed neuropathy has been attributed to demyelination of axons and phosphorylation of esterase in [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 550

Experiment: Transients in Power Equipment Circuits

One of them is by designing a machine that is well adapted to such conditions of overvoltage, while the other method involves the use of protectors such as lightning arresters or power surges.
  • Subjects: Physics
  • Pages: 2
  • Words: 995

Drosophila Melanogaster: Centriole Reduplication

The aim of this study is to understand the mechanism of regulation that affects the centrosome duplication which will be a valuable funding for understanding of the cell behavior and preventing mechanisms of the cell [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 773

Estimating Single Population Parameters

There are two types of CIs, that is, interval estimate and point estimate, and both of these can be used to estimate the mean for a population sample.
  • Subjects: Math
  • Pages: 4
  • Words: 859

Rapid Flow Cytometer Test Importance

Second, the protocol was modified by raising the temperature required for labeling the bacterial cells."The third modification was the addition of 0 8% ethylenediaminetetraacetic acid to the A31 buffer used in the pretreatment of milk [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 554

Simple Detection of Pseudomonas Cells in Milk

The research conducted shows that it is possible to identify small amounts of pseudomonas cells in milk when on-chip flow cytometry is preceded by FISH, in a time frame of 16 hours.
  • Subjects: Biology
  • Pages: 2
  • Words: 638

Evidence-Based Research Methodology in Searching

In relation to prevention, the article indicates that the guide that is provided to the evidence based care is essential in preventing development of pressure ulcers.
  • Subjects: Scientific Method
  • Pages: 3
  • Words: 867

Sergei Natanovich Bernstein: A Prominent Mathematician

Nevertheless, in spite of all the hurdles placed before him, Serge Natanovich Bernstein persevered and in the process contributed to the development of mathematics in particular and humanity in general.
  • Subjects: Math
  • Pages: 4
  • Words: 1198

Real-World Applications of Mathematics

The world of mathematics is much diversified with the two common and simplest sequences to work with being the arithmetic and geographic sequences.
  • Subjects: Math
  • Pages: 2
  • Words: 536

Double Inverted Pendulum as a Control System

The determination of the amount of noise produced during the measurement process is a key factor that has been suggested in the construction of actual systems. Another approach was the use of robust control techniques.
  • Subjects: Physics
  • Pages: 2
  • Words: 588

Thermoelectric Coolers’ Designs

Heat sink paste was used to attach copper heat sink on the TEC assembly and then temperatures of the hot surface of the heat sink and cold surface of the thermoelectric cooler were measured as [...]
  • Subjects: Physics
  • Pages: 3
  • Words: 1125

Root Modifications in Cyperaceae Species

In fact, low phosphorus and nitrogen supply in soils initiates the formation of these structures; with increase in supply of phosphorus and nitrogen leading to suppression in dauciform root formation. Caustis blakei is one of [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 557

The Concept of Connecting Devices

The second objective of this laboratory experiment was to display and measure the common mode characteristics of a bipolar long-tailed pair differential amplifier.
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 543

Effects of Mass on the Braking Distance of a Bicycle

The aim of this experiment is to investigate the effects of mass on the breaking distance of a bicycle. The kinetic energy is factor of the mass and the velocity of the bicycle creating a [...]
  • Subjects: Physics
  • Pages: 3
  • Words: 1293

Cigarette Smoking Side Effects

Nicotine is a highly venomous and addictive substance absorbed through the mucous membrane in the mouth as well as alveoli in the lungs.
  • Subjects: Biology
  • Pages: 2
  • Words: 603

Meaning and Aspects of Cyclotrons

Some examples are discussed in the following document which details the mathematics of cyclotrons and the behavior of ions that form the main focus of the study.
  • Subjects: Physics
  • Pages: 18
  • Words: 4894

Inayatullah’s Triangle: Space Tourism

One of the major problems of space tourism is the fact that human bodies cannot adapt quickly in outer space as it does on Earth.
  • Subjects: Space Studies
  • Pages: 2
  • Words: 536

Anti-Corruption Strategies in Kazakhstan

On the backdrop of the notion that corruption is an international issue of concern5, the aim of this paper is to evaluate the success of anti corruption strategies in Kazakhstan.
  • Subjects: Countries Studies
  • Pages: 27
  • Words: 6939

Nano-Particles in the Current World

The pollution of the environment by nano-particles takes place with the increase of the metal minute particles in the air, when the concentration of the particles rise above the recommended concentration levels.
  • Subjects: Physics
  • Pages: 3
  • Words: 982

Pygmy-Possum Burramys Parvus: The Effects of Climate Change

The study will be guided by the following research question: In what ways will the predicted loss of snow cover due to climate change influence the density and habitat use of the mountain pygmy-possum populations [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 892

Organic and Inorganic Compounds

Dry Ice if put in water, starts melting, and soon it becomes gaseous, as the temperature of CO2 increases. If it is placed in a bottle, the gas pressure tears the walls of the bottle.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 542

Measurement of the Rate of Glycolysis Using Saccharomyces Cerevisae

The experiment was designed to investigate the impact of temperature on the rate of Glycolysis. The experiment results demonstrated that the rate of Glycolysis increases as temperature increases which resulted in the acceptance of hypothesis [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1607

Recovery Plan For Manorina Melanotis — Black-Eared Miner

Due to a decline in number in the 1980s, the bird was declared as an endangered species under the Australian Environment Protection and Biodiversity Conservation Act 1999 and the International Union for Conservation of Nature.
  • Subjects: Biology
  • Pages: 6
  • Words: 1675

Physiological Differences Between Males and Females

Although the males have bigger muscles than the females, the latter have better blood flow during exercise, and use one hundred percent of the fibers in their muscles as compared to the former who use [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 557

Sex Determination in Amphibians

Precisely, the dissimilarity between the sex chromosomes entails the sizes of the chromosomes, the patterns of binding, the centrometric index, the heterochromatin characterization as well as the transcription loops of lampbrush chromosomes.
  • Subjects: Biology
  • Pages: 3
  • Words: 908

The Histopathology Laboratory: Special Stains

The Masson's trichrome is commonly used to reveal the architecture of tissues and in the preparation of frozen sections. The Masson's trichrome stain was used in the staining of normal uterus and the uterus fibroid.
  • Subjects: Biology
  • Pages: 6
  • Words: 2077

Commiphora Molmol and Boswellia Papyrifera Plants

The next step in the experiment was also significant in ensuring the chemical components in the extracts are known and that the anti microbial activity is attributed to each of them separately.
  • Subjects: Biology
  • Pages: 3
  • Words: 823

How Serotonin Affects the Brain and Addictions

The purpose of this paper is to discuss the effects that serotonin has in the brain and how it interacts with other chemicals in the body Serotonin is an indoleamine chemical secreted by the brain [...]
  • Subjects: Biology
  • Pages: 20
  • Words: 5618

X-Ray – Radiation for the Benefit of Humans

The focus of the x-ray machine is then directed towards the area that the doctor is interested in and during this time the radiations are ejected from the machine.
  • Subjects: Physics
  • Pages: 5
  • Words: 1547

Development of Amperometric Biosensors

2 The significance of amperometric biosensors which determine glycolic acid in real samples lies in the fact that they are the first enzyme based biosensors which have a lot of potential.
  • Subjects: Scientific Method
  • Pages: 5
  • Words: 1173

Experimental Studies on Williams Syndrome Disease

Here, it is expected that the results of the three experimental studies will point out the major predisposing factors in the development of WBS particularly the gene deletions involving the 7q11.
  • Subjects: Genetics
  • Pages: 2
  • Words: 983

Researches of Proctoeces Maculatus

For a long time classification of the trematode has been a controversy among the research community due to the various morphological forms of the species that have been identified.
  • Subjects: Biology
  • Pages: 3
  • Words: 899

Observing Orientation Behavior in Planarian Dugesia SP

The alternate hypotheses were that planarian Dugesia sp.shows response to gravity and that planarian Dugesia sp.shows response to light. The Chi-Square statistics for both tests were significant and therefore the null hypotheses, the planarian Dugesia [...]
  • Subjects: Physics
  • Pages: 3
  • Words: 1688

Identification of Lactose-Fermenting Enterobacteriaceae

The other group, the non fermenting bacteria consist of some genera such as Serratia and Haffina. The aim of this experiment is to study Escherichia coli and Klebsiella pneumoniaea both of which are lactose fermenting [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 1496

Molecular Components of the DNA Molecule

The DNA serves as storage of the genetic information in the form of codes. The DNA polymerase is the enzyme that is responsible for the combination of the phosphate and the nucleotide.
  • Subjects: Genetics
  • Pages: 3
  • Words: 821

Evidence of the Evolutionary Process

The unearthing of fossils and their study, biogeography which informs us of similar species of trees and animals in various parts of the world and the reasons for such an eventuality, embryology and the study [...]
  • Subjects: Evolution of Humans
  • Pages: 5
  • Words: 2032

Nanotechnology and Nanoink

The same thing is expected to happen the moment the general public begins to have access to nanotechnology. There is also a need to analyze if it can hinder the flow of electricity and other [...]
  • Subjects: Physics
  • Pages: 5
  • Words: 1294

FRET Detection or DNA Molecules

It is for this reason that the method is possibly applicable in the DNA sequencing methods that are composed of single molecules and these are viewed as belonging to the "next-generation".
  • Subjects: Genetics
  • Pages: 2
  • Words: 610

Benthic Macroinvertebrate

The sampling of Macroinvertebrate constitutes a very important aspect of analyzing a habitat due to the fact that Microinvertebrates are fundamentally vital in defining the health of streams where they habour.
  • Subjects: Biology
  • Pages: 5
  • Words: 1756

Development of the Chimpanzee Pancreas

This review will show the development of the chimpanzee pancreas, the anatomy of the fully developed pancreas including its histological cellular components, the molecular interactions that regulate the development of the pancreas, and discuss a [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 1736

Statistics in the Credit Department

The ratio of loan default for the customers with A level to postgraduate and those who lack formal education to GCSE is 3: 4.
  • Subjects: Statistics
  • Pages: 2
  • Words: 757

Museum Genetic Presentation

When this condition is violated, the population is opened allowing individuals to move from one population to another hence creating a net flow of genes which results to genetic variations and consequently, to evolution.
  • Subjects: Genetics
  • Pages: 4
  • Words: 1141

Osmosis Transport Across the Cell Membranes

It is the difference in concentration of water across a semi-permeable membrane drives the process. The process is facilitated by the disparity in potential of water across the semi-permeable.
  • Subjects: Biology
  • Pages: 2
  • Words: 322

Uses of Statistical Information

High school and seeks to explain how it is used, the four levels of measurements and their use in the school, examples of descriptive and inferential statistics, and finally the advantages associated with accurate interpretation [...]
  • Subjects: Statistics
  • Pages: 2
  • Words: 728

Process of Gene Expression

One of the major mechanism through which gene expression is altered is addition where a base pair is added to the normal sequence hence changing the specificity of the protein that the code specifies.
  • Subjects: Biology
  • Pages: 4
  • Words: 1123

Genetic Information in the Trosack Case

The purpose of this essay is to integrate genetic information in the Trosack case to ensure that the patients can deal with the genetic basis of the disease in their child.
  • Subjects: Genetics
  • Pages: 9
  • Words: 2530