Essays on Surface

Cell culture is an in-vitro technique of cultivating cells under controlled conditions and in sterile conditions. The technique was first developed by Ross Harrison in 1907. During the process of cell culture, the cells are detached from their tissue of origin and segregated from each other, either by mechanical or enzymatic means. The detached cells are then transferred before culturing them in cell culture plate or flask. The first generation of producing cell through this method is called primary cell culture. The cells from the primary culture are transferred to a new culture plate with a fresh medium to ...

ASSIGNMENT 2: ASTRONOMICAL IMAGES

For each Micro Observatory Robotic Telescope Network observation:

position: RA= 13h 24.9m Dec= -7 degrees 28 minutes located in constellation: Libra Distance= 600 million km (33 light minutes) at closest to the Earth Field of view: Normal Exposure time: 15.00 sec. Filter: Grey (ND4)

Hour Angle: -1h 40.4m

Comment on quality of observation: Micro Observatory is run by the Harvard-Smithsonian Center for Astrophysics Question: Why are some of the targets listed as “not up tonight”? Micro Observatory Robotic Telescope Network observation: Target name: Jupiter Type of object: Planet position: RA= 13h 27.3m Dec= -7 degrees 39 minutes located in constellation: Libra Distance= ...

HadCM3 stands for Hadley Center Coupling model version three. This global climate model (GCM) was developed by the Met Office Hadley Center for Climate Science and Services in 2000, and was used as one of the major GCM ever since, starting from the Third Assessment Report by the Intergovernmental Panel on Climate Change in 2001. The model includes two elements – HadAm3 (for atmospheric modeling) and HadOM3 (for oceanic modeling), therefore forming a coupling assessment model. The GCM was a further development of the previous model HadCM2, also developed at Hadley (Bloom, 184).

Model description

The model includes 2 elements for the ...

Words have different definitions according to experience of those receiving the words. The meaning of the words nature has different connotations, and these connotations have changed according to the changing views of society. Thus, the definition of the word “nature” is more fluid than words on a page might indicate. The etymology of the word comes from the Latin “nat,” meaning to be born. This word morphed into the more current - at least in terms of language - “natura,” which has several different meanings. The first meaning of this root is the idea of birth. From a religious ...

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The Geo in the Essence of Existence and Its Connectedness

INTRODUCTION GEO AS THE EARTH Geo, as the physical world that astronomy refers to as the planet ‘Earth’, comprises all that exists on the surface of the Earth: the soil and the landforms; the streams and the water forms. It can be seen in the colorful varieties of the soil: from the lighter hues of brown to its darkest hue. It is also seen in the verdant black soils and the iron rich reddish or maroon ones. Moreover, it can be appreciated in the great diversity of the shapes and sizes of landforms, ...

Global warming refers to the phenomenon due to which the average global temperature rises by a few degrees over a specified period of time, or as the time passes. The concern that this raises is that if the temperature keeps on rising every few years or so, it is not hard to imagine what would be its effects to the global climate and environment over the next few decades. The rise of a few degrees in a few years is not much of an issue; however, if this rise is consistent, that is where the concern of most of ...

Continental drift is the theory which proposes that the world was originally made up of a single continent. With the passage of time, this continent was broken up, and it drifted apart to form the seven continents that are present today. It was proposed by Alfred Wegener whose hypothesis stands that the continents are made up of rocks that rest on the heavier weighing rocks on the crust, and this is a movement that is mimicked by icebergs on water. The continents move rigidly. Plate tectonics theory proposes that the Earth’s surface is actually broken up into a ...

Part 2. Recent and historical images of Mars

Historical Image of Mars. Website reference: http://www.fourthplanet.space/tag/christiaan-huygens/

Image info: Christiaan Huygens’ observational drawing of Mars shows a triangular feature which known today as Syrtis Major.

Telescope used: Huygens used a telescope created by himself (1655). It was a good 2-inch (5.1-cm) telescope of 10.5-foot (3.2-m) focal length and 50x magnification. (Sheehan)

Observer: Christiaan Huygens

Exposure time: Observations were taken over a number of weeks. Other relevant details: Huygens used results of his observations of Mars to measure Mars’ rotational period. He measured it as 24 hours (only one hour away from the rotational period of the planet recognized today). It should be noted that the most prominent and largest crater of the Mars was named after Huygens (14.0°S, 304.4° ...

Abstract

The aim of the experiment is to plot the calibration curve for deteremination of antigen 4D5 by performing ELISA experiment. The primary antibody was blocked by bovine serum albumin, then it reacted with IgG (secondary antibody). Then, the system was washed with carbonate, blocking and substrate buffers. Three replicate experiments were performed, and the experiment was performed with the serial dilutions. By measuring the optical density of the diluted solutions, the calibration line was obtained and the region with the linear dependence “concentration – optical density” was determined. The callibaraion line can be used for the practical tasks: for detecting ...

The theory of continental drift assumes that the earth is composed of one continent for billions of years. It slowly drifted apart to form the seven continents which could be recognized in the modern times. The drifting of the continents is mainly due to the lighter rocks at the surface which is influenced or moved by the heavier rocks beneath. On the other hand, the plate-tectonics theory assumes that the earth is composed of plates or slabs which are shifting or moving away or towards each other. The movements of the plate depend on the condition and chemistry of ...

Global warming describes the gradual increase in Earth’s and its oceans’ temperature that changes the Earth’s climate. It shows that the Earth’s temperature increases due to the effect of greenhouses gases such as extensive emission of carbon dioxide (CO2) due to different factors. It is observed that human activity is the important cause of global warning that influenced the physical mechanism of climate change.

Effect of greenhouse gases in changing the Earth's temperature

Scientists have identified a record variation in Earth's climate dating back hundreds of thousands of years. Significant difference in Earth's climate has reported during the present day and the last 650,000 ...

When it comes to Human Resource Management, things tend to get a tad bit trickier considering how the HR department’s entire job is to maintain the upkeep of the people to ensure the upkeep of the facility. That being said, there are a few factors the HR department needs to consider before they can perfectly say that have done the best HR planning for the sports complex. For starters they need to make sure there are enough people doing the work and the maintenance of the facility is going as planned. Secondly, they need to make sure that ...

Inquiry

This paper provides a response to the inquiry: "How does the structure/specific property/shape of ceramic biomaterials influence their performance in hip implants?" The principal objective of coming up with the script is to analyze the existing literature on the use of ceramics as biomaterials. A lot of research is underway to optimize the use of ceramics in hip implants. The following subsections cover the literature on the effect of the shape, specific structure, and structure of ceramics as hip implants.

Introduction

Biomaterials are now an active area of research in Material Science Engineering globally. The term ‘biomaterials’ describes a wide ...

Weathering and erosion are two basic events that take place on earth as part of the wear and tear of the natural resources like rocks, soils, and plants and trees that cover the earth. Closely observing weathering and erosion will help understand how the surface of the planet has been changing over the past several years and how it will change in the future as well. Weathering is the process through which rocks on the surface of the earth gradually break down into small pieces. On the other hand, erosion is the process through which the broken pieces and ...

Collecting Evidence

Collecting Evidence

Processing Fingerprints

“A Simplified Guide to Fingerprint Analysis” lists three types of prints that can be lifted at a crime scene (2013). They are as follows: (Note: all information in this section comes from this article). Soft surface prints. These 3-dimensional plastic prints are found in soap, wax, wet paint and fresh chalk. Hard surface prints. The prints fall under two categories.

Patent Prints (Visible)

Found on smooth, rough, porous (paper, cloth, wood), and nonporous (metal, glass, plastic) surfaces. Can be found in blood, dirt, paint and ink. Collecting patent prints is done by high-resolution photography. To improve the quality of the ...

Reflection and Refraction of Light

REFLECTION: Reflection of light is the change of direction that light experiences when it collides with an object and "bounces." The reflection of light makes it possible to see objects that do not emit their light . There are several applications of the reflection. One example is the "The Laugh House" of an amusement park, the person will probably see a very distorted image in a curved mirror. Similar deformations occur in the concavity of a shiny spoon or on the polished surfaces of a coffee machine or a car. Images look different due to irregular surface curvature; They have ...

Human Resource Management

When it comes to Human Resource Management, things tend to get a tad bit trickier considering how the HR department’s entire job is to maintain the upkeep of the people to ensure the upkeep of the facility is being done. That being said, there are a few factors the HR department needs to consider before they can perfectly say that have done the best HR planning for the sports complex. For starters they need to make sure there are enough people doing the work and the maintenance of the facility is going as planned. Secondly, they need to ...

Risks to the Mine

The major hazards to the mines include the possibility of floods taking place in the sites, and they will lead to a stop of the mining process. Secondly, the mines are prone to gas explosions. The explosions will increase the hole, and might even lead to the prevention of further mining (Khan, et al. 2004). Thirdly, the mines might face chemical leakage, an act that may cause decomposition of rocks and depletion of the important resources in mines. Moreover, mines are prone to dust, that will lead to blocking of the extraction process, by occupying the region, or causing ...

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Immunotherapy in Treating Human Cancer

The immune system of our body is a complex network of tissues, cells, and organs that act mutually to protect our body from unknown foreign trespassers. It recognizes the harmful particles entering the body and facilitates the destruction of those particles in order to shield the body system from any ailment. Due to any complexity or disturbance often the immune system targets the wrong particle considering it as a dangerous particle and this anomaly of the immune system may result in various autoimmune diseases like arthritis, allergies, malignancies, and AIDS (Understanding the ...

Around the world, there are roughly 1500 potential active volcanos. Most of these volcanoes are around the Pacific Rim also referred to as ‘Ring of Fire.'

Volcanic ash has minerals within it when incorporated into the soil; it adds nutrients.

Volcanic mountain slopes are steep in nature. It makes it inaccessible to both animals and human beings. It provides habitat for rare plant and animal species away from human manipulation. Gases that erupt from volcanoes provide water and atmosphere. Regardless of the slow processes involves I making them it is significant over an extended period. Most volcanoes exist on the brink of tectonic plates. Amongst the tectonic plates, the largest is the Pacific ...

Abstract

The study of tiny particles and their applications have emerged as an important area of research in recent years. In particular, magnetic nanoparticles have attracted considerable attention due to their unique properties that make the particles useful in numerous applications. Accordingly, the present review investigates the synthesis, characterization, and biomedical applications of magnetic nanoparticles. The introduction section examines recent advances in nanotechnology and explains the significance of magnetic nanoparticles in scientific research. The section on results and discussion presents the findings of various researchers with a focus on the magnetic properties, synthesis, characterization, and biomedical applications of magnetic nanoparticles. ...

Raman spectroscopy is dependent on scattering of light. When light interacts with matter, energy exchange can take place through absorption, simulated emission, Raman scattering or spontaneous emission. In Raman scattering, the emitted photons have less energy and lower frequency in comparison with the absorbed photons. Some energy of the emitted photons is transferred to the molecules. Raman spectroscopy is a method which collects the chemical fingerprints associated with molecules. Every molecule has different levels of vibrational energy and the emitted photons experience shift in their wavelengths. The wavelength shifts are collected,examined and analyzed for sample identification. Raman spectroscopy ...

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Summary Report 1

What factors contributed to the problem? Volcanic activity is a major contributing factor to the issue of climate change. The eruption of volcanoes leads to the release of large quantities of water vapor, ash, dust, carbon dioxide, and sulfur dioxide into the atmosphere. In the atmosphere, these sulfur dioxide molecules will react with water vapor leading to the formation of sulfuric acid, which is then spread all over the world through winds. The sulfuric acid formed in the atmosphere can significantly affect the amount of solar radiation entering the Earth’s surface and thereby the ...

Introduction

Every parent envisions a future where their children and grandchildren live in a rich and resourceful environment that essentially provides them with everything that they need to survive. However, what if parents were informed of a pending doom where their children will live in an extremely toxic environment where there aren't enough basic resources such as fresh drinking water or where the climate is comprised of harsh conditions that threaten their lives on a daily basis? What if they were informed that by the time their children are adults, a diverse range of the existing species of animals will ...

Abstract

The field of Nanoscience has evolved due to the other advancements in the other fields of study such as the Nanotechnology. While the latter is a subset of the former, there is credible evidence that points to the fact that Nanotechnology has been developed thanks to various areas such as biology, material science, engineering physics, chemistry and much more. It is the foundation on which the Magnetic Nanoparticles have been embedded. MNP is nanoparticle that has the magnetic manipulation ability. Thus, this paper focuses on the study of the Magnetic Nanoparticles especially how they are formed or synthesized and ...

Abstract

Application of the nanofiltration (NF) and ultrafiltration (UF) processes is applied in the handling of water that is produced raw. The application has been investigated in the current day through various studies (Wang 14). The experiment of the processes of both nanofiltration and ultrafiltration is conducted in the laboratory unit which is operated in a pattern of cross flow (Ashaghi, Ebrahimi, & Czermak, 46). The study that was conducted in Oilfield of North Sea using the process of membranes of ultrafiltration (UF) and microfiltration (MF) indicated that the content of hydrocarbon decreased from 50 mg/l to 2 mg/l which recorded ...

Summary of What was Learned

In the first chapter of the book written by Graham, the author attempted to define the term ‘photograph’. The initial discourse presented a historical evolution of photography through transcending the people who had been instrumental in its creation. The first person who was acknowledged to have successfully capture a fixed photographic image was Joseph Nicephore Niepce in his photograph entitled ‘View from a Window at Gras, 1826’ . Other known personalities who significantly contributed to the historical evolution of photography reportedly included Louis-Jacques Mande Daguerre (founder of the daguerreotype process), William Henry Fox Talbot (producer of the first negative/positive photographic ...

Latent prints can be defined as the pretense of individual’s ridged skin. They are generally known as friction ridges or fingerprints. These impressions are regularly imperceptible to the exposed eye despite the fact that they are surrounding us and each one of us accidently leaves them everywhere. At the point when an investigator is dealing with a crime, other than taking a gander at the physical proof, one of the main things they do is check for fingerprints. This is an exceptionally sensitive process on the grounds that relying upon the surface a latent print can without much ...

Introduction

Cyber security has been a primary concern for all individuals and organizations regardless of their size over the years. Security concerns are on the rise as attacks become more sophisticated and requiring complex ways of mitigating them. Although the security risks are on the rise, accomplishing daily business operations is nearly impossible without heavy reliance on information technology devices and networks. In the previous year’s security has not been a priority for factory controls and industrial systems. The key focus on security has been on personal computers and business networks. Recent attacks such as the Stuxnet has proven ...

Literature Review

Impact Mitigation

Intelligent locomotive bumper designs have been touted as possible life-savers for pedestrians. Paden, Kelly, Hines, Botham and Simms explored the feasibility of a life-saving locomotive bumper (103). There were several motivations behind their paper. Perhaps the most important one was the high number of pedestrians that were killed every year in train impacts. Between the years 2007 and 2012, about 10,950 non-suicide deaths were attributed to train impact on humans. Including suicide deaths on railroads, 28,800 pedestrians were killed during that 6-year period. Also, Paden et al., noted that passenger trains served densely populated areas ( ...

Status of the document.

This document is a project proposal for the development of starch-based hemostatic products. Acknowledgement. Much thanks to the project supervisor who offered guidance in every step of the development of this proposal. Developing starch based hemostatic products Project summary. Purpose: This proposal is envisioned to develop a hemostatic agent from purified plant starch. In this case, the product of the reaction should be developed by the formation of microporous hemosphere particles after etherification, esterification and crosslinking of glucose molecules to form ethyl propanetriol (glycerol-ether links (1-3 deoxy propanol)). The second intention of this study is to investigate the properties ...

I placed myself on a smooth rock in a crop of trees in order to become more in touch with nature. Disconnecting myself from everything around me other than my senses and the location I began to take in my surroundings. A few birds chirped in the distance; the sound was hollow against the trees around me. A dog barked, further away than the birds. Gray-blue clouds across the horizon from the east, lighting up pink, purple, and red as the sun began to set beyond the rolling green hills in front of me. Nearby I could hear what ...

Part 1

The current theory regarding the evolution of the earth’s ocean is that water is present during the formation of the earth. Most of the discovered materials which was more than 4 billion years old also contained evidences of the present of water (Genda, 2016). Some scientists suggest that the water on earth emerged in the surface when steam was released in the volcanoes. Additional water emerged in the surface of the earth coming from meteorites and comets during the formation of the earth. The continuous addition of water from volcanoes and meteorites or comets led to the formation ...

Introduction

Climate change is a major environmental problem, causing concern to various corners of our ecosystem. It is a result of global warming, environmental pollution and inefficient use of our natural resources. Climate change has affected almost all living organisms, including plants, animals, microorganisms and undoubtedly, man. It poses a serious threat to our ecosystem and is listed as a major concern in the Grand Challenges of the U.N. for Millennium Development and Millennium Ecosystem Assessment (Garrett 490). A wide variety of its implications, have made climate change, an important topic for researchers. There has been more awareness among researchers ...

The Mars Climate Orbiter: A Multimillion Dollar Mistake

The Story Grossman (1999) addresses the incident of NASA’s Mars Climate Orbiter in her article named “Metric Math Mistake Muffed Mars Meteorology Mission”. She explains how a simple unit conversion mistake caused the Orbiter to burn up in the Martian atmosphere. The vessel costed NASA a whopping $125 million when it vanished into the Martian atmosphere. The problem, later identified by a NASA review board, owed to a software glitch. The software was used to calculate the thrust in “pounds of force” while the other software took the input in “newtons”. This happened due to the fact that ...

Introduction:

Nanobiotechnology serves as an imperative technique in the development of clean, nontoxic, and eco-friendly procedures for the synthesis and congregation of metal NPs having the intrinsic ability to reduce metals by specific metabolic pathways. Silver nanoparticles are particularly interesting nanoscale systems due to the ease with which they can be synthesised and modified chemically. Synthesis of silver nanoparticles has been widely researched due to their interesting size and shape-dependent properties [26]. These novel properties can be tailored by controlling their size, shape, composition, structure and crystallinity. Due to their size features and advantages over available anti-microbial properties, chemical imaging ...

Part 1

Question 1 Tectonic plate motion refers to the movement of continental and oceanic plates from one place to another due to the effect of forces that generally act on these plates. These movements cause some effects to the surrounding environment and even to the earth surface in general. A scientist by the name of Wegner had earlier on formulated a theory that instituted some of the facts and evidence backing this presence of continental drift that had happened some time back in history (Runcorn, 2013). Furthermore, the critical evidence in support of continental drift is the jigsaw fitness of ...

In order to prevent the transmission of cryptosporidium to the public via public drinking water systems, various surveillance systems and regulations have been implemented hitherto, in order to increase the treatment of surface water supplies. Among these techniques is the molecular surveillance for the presences of cryptosporidium in water using PCR which resulted following the cryptosporidium outbreak in Milwaukee Wisconsin in 1993 (Johnson, et al., 1995). The outbreak resulted in effective systems being implemented to improve the quality of water treatment globally as Mac Kenzie, et al., (1994) observes. Guerrant, (1997) documents the onset of validation studies in Milwaukee ...

Pollution from agricultural runoff has brought great danger to both human beings and the organisms that live in water. Various chemicals used in crop production are dragged into water sources, poisoning the water (Kennen & Kirkwood, 2015). This poses a danger to the existence of living organisms. Consumption of contaminated water by humans leads to waterborne diseases such as cryptosporidiosis which causes diarrhea, vomiting, fever, weight loss, and stomach cramps (Lichtfouse, 2009). The essay below describes significant ways in which this form of pollution can be prevented. First, fencing of livestock grazing areas at about 100 meters from water sources ...

Abstract:

The principal intention of this study was to come up with the most conducive internal environment in a building. At any given moment, the internal temperature of a building is a function of the amount of heat produced by sources therein and the net heat transfer into or out of the building. The four heat transfer modes are convection, radiation, conduction, and phase- change. In executing this project, the researchers sought the relevant literature to establish the thermal properties of various materials. The properties are critical in determining the amount of heat inflow and exit from the building. The ...

Hawai'i was the 50th state to join the USA. It comprises 132 islands and is said to be the home of volcanic islands. These islands reside in the Central Pacific Ocean. Moana Loa is one of the top most active volcanoes that had formed the island of Hawaii in the ocean (Networks, 2016). The movement of plate tectonics has resulted in the volcanic eruption and, however, the volcano towering and presence of valleys had a significant impact on the economic value.

Theory of plate tectonics

Plate tectonics theory explains that upper layer of the earth’s surface is segregated into various plates that ...

Q1. A 200mm diameter pipeline divides into two smaller pipelines, one being 100mm in diameter and the other being 150mm in diameter. If the velocity in the 100mm pipe is 0.3m/s and that in the 150mm is 0.6m/s, calculate the flowrate in litres/s and the velocity in m/s in the 200mm pipe. [ 13 l/s, 0.413m/s] Solution: Flow Rate = (pi/4)(0.1)2(0.3) + (pi/4)(0.15)2(0.6) = 0.01296 cubicmeters/sec = 12.96 l/sec. (ans.). Velocity = (Flow Rate)/(Area) = [0.01296]/[(pi/4)(0.1)2] = 0.4125 m/s. Q2. If the specific volume of water is 0.001251 m3 /kg. calculate:

The mass and weight ...

A critical Evaluation of the response to Deepwater Horizon oil spill

Introduction The oil industry plays a significant role in providing the oil used as fuel in other major industries that drive the economy. Due diligence and utmost care are among the guiding principles that regulate the industry as any problem may have adverse effects on the environment as well as human and animal life. However, due to unavoidable circumstances, the oil spillage sometimes occurs with devastating results on the seabed and the animal life that lives under the waters. The Deepwater Horizon is one of the worst accidents that happened in the oil production and processing industry. It happened ...

Part A

Process, SEQ Water (2016) The flash tank: The water from the river flows to the flash mixer where it is mixed with caustic soda and alum chemicals. The rate of chemical used depends on some sediments and wastes contained in the water. Flocculation chamber: In the flocculation chamber, smaller chemical particles undergo a gentle mixing process allowing them to mix and form large particles known as floccules made up of clay and silt. Floccules enter the sedimentation tank and settle at the bottom of the tank where they are separated and pumped out of the sedimentation tank through a ...

Introduction

In the context of microeconomics, the concepts of economies of scale, economies of scope and complimentary relationships are three important elements for a business and it’s strategy. The nature of how a business plans production and schedules pricing can be significantly impacted by changes to any of these factors as profitability may hinge on the number of units sold, the diversity of the types of products sold or how other products in the market change. Economies of scale is the nature of changes to the cost of production for each unit the organization produces. Economies of scale lead ...

Abstract

The Geographic Information Systems (GIS) is technological programming that gathers, accumulates, and evaluates data related to the earth’s surface. GIS interprets set of data on a single map, which is evaluated and interpreted subsequently. Over the years, the integration of the technology with the principles of Transportation Economics gained a significant attention of numerable economies. Particularly the metropolitan cities of developed countries that encounter various challenges related to the development and maintenance of infrastructure. It was found that GIS allows the Transportation Economists to develop and propose an efficient plan related to different routes and their smart integration. ...

Abstract

A sandstorm is characterized as one that whips up extraordinary loads of sand into the air, forming a dense cloud above the ground in the process. While most of the sand will rise higher than 50 cm, some sand particles can even ascend to the height of 2 meters. According to Wikipedia, the average diameter of the particles carried by such dust storm winds will vary between 0.15 and 0.30 mm. Wind speeds such during sandstorms have been recorded at up to 16 km per hour and more, while most storms continue to blow for between three hours to ...

Overview

Polyvinylidene fluoride is one of the polymers that are used as membrane material. This is because of its outstanding properties. Besides its comparatively high amount of fluorine, the polymer also has a high level of crystallinity. The result of these properties are exhibited in the performance of the Polyvinylidene fluoride polymer. For instance, the chemical stability of Polyvinylidene fluoride in chlorinated solvents and environments that are highly caustic and acidic is very high. Another property of the polymer is its hydrophobicity. This means that it is not compatible with water. This would create challenges if the polymer were to ...

Define and discuss time and space utility

Products must be transported from the place where they are produced to the place where customers demand it to be delivered. The value-add that the product gains due to its transport is called space utility. The time utility is the length of time before or between the product deliveries, which consists of mostly storage and inventory time. When the organizations are able to deliver the goods at a time they are needed, then their time utility increases.

What is the Total Cost Analysis and how does is affect logistics?

Total cost analysis provides the methodology for integration of logistics, manufacturing, and procuring costs across the network. This is done to achieve ...

Overview: Overview: Antigen-antibody reactions are commonly used in immunological assays. In a traditional agglutination assay, the end product is a visible antibody-antigen complex that settles as visible particulate matter in the solution. In other cases, the reaction is invisible and wants the use of a specific enzyme or isotopic probes that can amplify the signal created by the antigen-antibody reaction, so that they can be detected with the naked eye or an ELISA/RIA reader1. Hemagglutination is a visible antigen -antibody assay in which soluble antibodies react with antigen on the surface of (red blood cell) RBC to form a ...

Introduction: All most all metals are unstable when exposed to air. This is because of the tendency of the metal to be converted into its oxidized form on reaction with air. When compared to zinc, iron has a greater tendency to form oxidized form and thus has greater susceptibility to corrosion. The ability of metals to react with air varies and this determines their relative stability. As zinc is much stable when compared to iron, it is used to galvanizing iron pipe, thus preventing contact of iron with air and water that contains dissolved air. Brass is an alloy ...

Abstract

Paget's disease of the breast is an uncommon kind of cancer of the nipple–areola complex and that is time and again connected to a fundamental in situ or persistent carcinoma. We provide an overview and evaluate the key clinicopathological and healing aspects of mammary Paget's disease. Patients suffering from the Paget disease frequently present with a constant, eczematous skin complaint on the nipple and adjoining areolar skin. Paget's disease of the breast has been acknowledged as a separate clinical unit for over one hundred and twenty years. Since the situation in itself is repeatedly harmless and restricted to ...

Rapid prototyping is a set of various techniques that is usually used for fabricating a model or a sample using 3D computer aided design. The rapid prototyping allows prompt and effective collection of data necessary to produce a sample or a particular detail. Historically, the method was used to convert drawings into fabricated samples and details. However, the entire group of techniques is comparatively recent, as the first available options became available with the advancement and penetration of digital machines. The development in rapid prototyping is a result of progressing technological advancement and a high demand in machine tool ...

Rapid prototyping is the most convenient way to get a replica of a three-dimensional design CAD-generated 3D application way.

These physical models can be only aesthetic and useful for the study of the potential market of the product, or they may meet some or most of the mechanical requirements which would have the final piece, offering, in this case, the possibility to perform functional tests and approval before there even preliminary molds. That man made his hands the means that would shape the objects that determine their evolution, devised object, the object designed: tools, utensils, art, and beauty, among others. Use of science was done to create the elements that should give matter and harmony with their creations. ...

In order to reduce the United States’ dependence on fossil-fuel energy resources, alternate sources of renewable must be investigated in order to reduce the country’s emission of greenhouse gas emissions which contribute to global warming. At the recent COP21 Climate Summit in Paris, the United States committed to a reduction of greenhouse gas emissions by 26-28 percent below its 2005 level. This includes reductions in methane, carbon dioxide, perfluorocarbons, sulfur hexafluoride, nitrogen trifluoride and nitrous oxide, all of which contribute to global warming . In order to achieve these targets, the United States will need to employ alternative sources ...

The video about fractals entitled “Fractals: The Colors of Infinity” is basically, an overview of the concept of fractals. It gives a view on how seemingly simple formulae can lead to complicated results. Interestingly enough, this concept can be applied to a variety of fields, including science, math, and computing. In the video, the history of the fractals concept was discussed, as well as the milestones regarding its discovery and how it helped revolutionize the human way of understanding works. In the video, Dr. Benoit Mandelbrot is introduced, along with his discovery, the Mandelbrot set. In addition, the application ...

The piece in question is on display in Jundt Art Museum at Gonzaga University. The author, A. Lee Ayars titled it All in Itself. Although created by American artist, the sculpture seems to be reminiscent of ancient Greek art because of the colors and some of the shapes present on the piece. It can be argued that the piece belongs to representational art because if one were to look only at the sculpture’s silhouette, it would have looked like a three-dimensional bust of a snowman. On the other hand, however, the body of this particular snowman consists of ...

The extraction of oil and natural gas has been a major industry in the United States for many years. Originally, this fuel was used simply to heat homes. With the advancement in technology, many different types of machinery, including electrical generators at power plants, automobiles and home appliances have been designed to operate using natural gas. In recent years, it has become more difficult to find new sources of natural gas. Hence, various companies have ventured in hydraulic fracking in the hope of producing more natural gas. However, the hydraulic fracking itself brings a host of environmental and health ...

Introduction

Osteoarthritis of the knee also known as the degenerative arthritis is a major and growing problem for the elder population all over the globe. Approximately, 27 million individuals have been reported to suffer from osteoarthritis by the Arthritis Foundation in United States (US). Women have been more commonly reported to suffer from osteoarthritis as compared to men. The prevalence of developing arthritis has been found to increase after the age of 45 . Although, mostly elderly population are most affected yet there are few evidences of young people suffering from it. Osteoarthritis is also commonly defined as wear- and- tear ...

Abstract

Healthcare providers and physical therapist involved in the management of patients with musculoskeletal disorders, the inclusion of an imaging modality would enhance and improve medical diagnosis of such conditions. Based on current evidence, the implementation of physical therapy is highly recommend before the inclusion of an imaging modality. In such cases, physical therapist would require a robust, comprehensive, and feasible diagnostic imaging modality. In the US, there is an increase in demand for physical therapist which enables them to practice in over 45 states. The privilege of imaging referral or inclusion of imaging modalities as an adjunct to screening ...