Sperm Sorting Humans have tried for some time to determine the gender of their child while it is still in the womb. Craving sweets or a slower heart rate means you’ll be having a baby girl. Eating a lot of salty foods, having an especially active baby or carrying your baby low means it’s time to start painting the baby’s room blue1. Advances in science have moved us beyond these old wives’ tales and allowed us to exactly determine the gender of a child before it is born through the use of an ultrasound
and genotoxicities. METHODS: NIH-3T3 cell line were used in this study, after treatment with apoptotic agent, DNA was extracted by simple protocol. Then DNA ladder and flow cytometry assays were done for detection of apoptosis in NIH-3T3 cell line. RESULT: Primary and late apoptosis in the treated cells was determined by flow cytometry analysis. Accordingly DNA ladder assay using 1.5 % gel electrophoresis showed fragmentation in the DNA of treated cells. CONCLUSSION: This research provides a fast, simple
In fabrication micro-sensors and devices micro-electro-mechanical systems (MEMS) provides significant opportunities, which are borrowed it fabrication abilities from semiconductor technology. Advances in semiconductor technologies since 1970s have paved the way for fabrication of the devices with micron dimensions. These devices were categorized under the MEMS field, which was a combination of mechanical structures with electronic readout circuits. MEMS technology has borrowed its fabrication capabilities
ion flow, permit Na+ or CL- to migrate across the cell membrane. The question now is, what causes the protein channels to open to Na+ or Cl-. In essence, there are three manners in which the ion flow can come about. The simplest way in which neurotransmitter-receptor binding can cause the opening of the protein channels is when the receptor is located immediately on top of the protein channel. Once a neurotransmitter binds on to the receptor, it causes the protein channel to permit ion flow. Receptors
Are young people in today's society enamored with themselves? Do they care about others? Are they unfeeling; show little or no interest or emotion; unresponsive, indifferent; passionless or void of feeling? What is the cause or reason for apathy in young folks today that wasn't there a hundred years ago? Quite possibly it is a lack of mental stimulation. As responsible citizens of the United States, we should decide to not put up with indifference but encourage young people to get involved in their
Diameter on flow rate. - the effect of Pipe Diameter on liquid flow (turbulent/laminar) 2) The effect of Temperature of liquid on flow rate. - the effect of Temperature on liquid flow (turbulent/laminar) 3) The effect of the Vertical height between source and destination of the fluid on flow rate. - the effect of Vertical height on liquid flow (turbulent/laminar) 4) The effect of the Liquid's Viscosity/Density on flow rate. - the effect of Viscosity on liquid flow (turbulent/laminar)
mixture takes to flow from one receptacle to another. The longer it takes to flow, the more viscous the mixture. The solution which is created from mixing cornflour with water is a gel. The flour forms a suspension in the water. Gels are created by mixing liquid and solids together to form a jelly-like mixture. A gel is a semi-solid which can move around, but not as freely as a liquid. Within a gel, the solid makes a kind of network which traps the liquid and makes it unable to flow as freely as
Against the Flow The stereotypical American teenage girl follows the entertainment industry as if it were her livelihood. She listens to pop, rap, and R&B. She goes shopping almost every weekend for the next midriff-baring fashion. Television is scheduled into her day as if the VCR had never been invented. She is on top of the trends, ready with plastic in hand for anything the market will push her way. I am not your typical teenage girl. I like to see movies, but often put everything else
'Rising Tide' Chronicles Flow of Changes John M. Barry's Rising Tide: The Great Mississippi Flood of 1927 and How It Changed America, takes us back 70 years to a society that most of us would hardly recognize. In 1927, the Mississippi River flooded 27,000 square miles from Illinois and Missouri south to the Gulf of Mexico. No one expected the government to help the victims. President Calvin Coolidge even refused to visit the area. As a result, the flood created and destroyed leaders: Herbert
and Resistance in a Themistor Aim To investigate the relationship between temperature and resistance in a thermistor. Introduction A current is the flow of charge round a circuit, this can be in the form of ions in a liquid or electrons in a metal. Resistance is anything that slows the flow of electrons round the circuit. Ohm's law states that the voltage is equal to the current multiplied by the resistance - V=IR This can be re-arranged to say
The Circular Flow Model Accompanied by Reverse Flows The circular flow model is defined as the flow of resources from households to firms and of products to firms from households. These flows are accompanied by reverse flows of money from firms to households and from households to firms. The circular flow is comprised of the resource market, households, product market, businesses, and the government. Macroeconomics - The study of the aggregate (total) Behavior of the whole economy. Macroeconomics
detail. Facts on Resistance: I have shown how resistance occurs. · WIRE · ATOMS · ELECTRONS Resistance occurs when the electrons traveling along the wire collide with the atoms of the wire. These collisions slow down the flow of electrons causing resistance. Resistance is a measure of how hard it is to move the electrons through the wire. Factors: 1.Temperature: If the wire is heated up the atoms in the wire will start to vibrate because of their increase in energy
will be proportional to current. The current is the flow of electrons. You can compare a wire to a water pipe. The flow of electrons is like the flow of water. The voltage is the push of electrons, which in equivalent would be the pressure of the water in the pipe. Therefore if you double the voltage, I think the current will also double. This is similar to doubling the pressure in the water pipe, which in affect, will double the flow of the water. The reason I will test my theory is
As I sat in front of my computer downloading my favorite song from Napster, I started to think about how hard it must have been to write a song so sublime with the way the words flow from one another, and how talented one must be to do so. I started to think how hard people work on their music for themselves and their fans, and how their fans don’t realize what they are doing every time they download a song off the internet. What they don’t realize is that it is messing over the people who worked
using single panel with a single simple layout. Some GUI need to be broken down into smaller panels which have to be added to an outer panel. Each smaller panel can have its own layout. The simplest layout is the flow layout. Flow layout produces output as a single row. So go for flow layout if you have only 3 or lesser components or if you want all the components in a single row. Next is grid layout. As long as you can determine the rows and columns, you can use this layout. It is possible to
"It ever was, and is, and ever shall be, ever-living fire, in measures being kindled, and in measures going out" -Heraclites Without Man, the flow of energy across the earth is organic and uninterrupted. The Sun warms the plants, the plants grow, animals eat the plants, animals eat the animals, and the animals die and melt back into the ground. The sun warms that ground again and the next generation begins. Although 10% of the sun's original energy is expended with every transaction between organisms
learners prefer to learn around new ideas and concepts. The third continuum of learning is Visual and Verbal, this style is to do with the way in which the information is presented. Visual learners remember best what they see e.g. pictures, diagrams, flow charts, time lines, films, and demonstrations. Verbal learners get more out of words including written and spoken explanations. The fourth and final continuum of learning is Sequential and Global. This style is to do with the way in which learners
Resistance Introduction: In an electrical circuit, the current (flow rate of charge) depends on the battery voltage that causes the charge to flow through the circuit and the components in the circuit. A circuit consists of a bulb, a battery and a resistor. The bulb is like a resistor, it slows down the electrons and the battery pushes the electrons and gives them energy. A component is a resistor, it slows down the flow of electrons. The bulb acts as a resistor because inside the bulb
though. In all my years of going to school I have had trouble writing introductions and conclusions for my papers. All of my teachers would tell me that you would want your introduction to flow and clearly start what you are going to talk about. When ever I would write an introduction it would never flow. It is always fairly choppy and I could not figure out how to smoothen it out. Now that I am in college people have told me to not summarize my paper in my introduction. This requires even more
Investigating the Resistance of a Wire The aim of this investigation is to see how the length of a wire affects its resistance. Background knowledge To make current flow through a conductor, there must be a potential difference (voltage) across it. As the current continues to flow there are certain factors which increase the resistance; Length of wire: as the length increases there will be a higher percentage of fixed atoms, therefore the electrons carrying the charge will collide