Design A 1 Bit Serial Adder Computer Science Essay

Design A 1 Bit Serial Adder Computer Science Essay The main aim of this project is to design a 1-bit serial adder, simulate its functionality and obtain a layout on silicon, using the 0.35 µ process from AMS. The circuit designed shows a working serial adder clocking at (100MHz of nsecs) with a delay of 0.56910nsec. The area of the layout is 99.3016.35  µm2 in this technology. The circuit performs an 8-bit addition in 0.569108 nsesc. The circuit uses a standard 1-bit full adder and it has a feedback loop using a D-flip-flop in order to transmit the carry bit to the next input value. The final layout product has 3-input pads and 2-output pads, with power and ground pads. The process known as serial addition of binary numbers is well known in the computing and units capable of performing such serial binary addition ordinarily comprise a basic portion of more complex computation devices. In the past, such serial adders for binary numbers have employed vacuum tube circuitry for the most part and have accordingly been subject to the disadvantages that they are relatively in large size, fragile in configuration and are subject to operating failures. These factors raise serious questions of disposition of components and problems of maintenance. The present invention serves to obviate the foregoing difficulties and in essence provides a serial adder structure capable of performing full addition of binary numbers. It is accordingly an object of the present invention to provide an improved serial adder for use in computing applications. An object of the present invention resides in the provision of an improved serial adder for binary digital applications employing magnetic amplifiers as components thereof. Another object of the present invention is the provision of the serial adder for binary numbers which adders can be made in relatively smaller sizes. A still further object of the present invention resides in the provision of a computation device comprising, in combination, a plurality of magnetic amplifiers and a plurality of gating devices so interconnected with one another that the mathematical process known as a serial bit addition. The binary adder of the present invention includes provision for selective coupling the input train pulses to be added as well as carry pulses produced by the device itself to the plurality of gates, and the gates are adapted by themselves to selectively pass signal pulses required for the operation or inhibition of the plurality of magnetic amplifiers mentioned above. In digital s ystems, digital signal processing and control systems we can control it when we are able to count. Addition is the fundamental operation for all these systems. The fastness and accuracy are highly influenced by the adders we are use for the circuit design. Adders are very important components in the digital components because of their extensive use in digital operations such as multiplication, subtraction and division. The execution of binary operations inside a circuit would be greatly advanced by improving the performance of the digital adders. The main aim of designing the bit serial adder is to Perform one bit at a time, using the first bit operation results to influence the processing of subsequent bits. It reduces the amount of hardware required as it passes all the bits in the same logic. However this approach needs 1/nth part of hardware when compared to the n-bit parallel adders. As we are using 1-bit instead of n-bits its structure reduces the signal routing and performs at high speed as we are using 1bit register for the temporary storage and one full adder rather than an n-bit adder. The reduction in the price of the logic results in taking n clock cycles to execute this serial hardware, whereas parallel hardware executes in one clock cycle. This bit structure deals with the bit stream hence this have been successfully used in many applications like digital systems, digital signal processing, control systems etc. It was extremely popular in 2-5u technology range. The performance of a digital circuit block is gauged by analysing its power dissipation, layout area and its operating speed. The main aim of this project is to design a 1-bit serial adder. Through this project research we get the knowledge of working behaviour and performance of the 1-bit serial adder. Adders are the basic components for the designing of any digital circuit. Adders are very important components in the digital components because of their extensive use in digital operations such as multiplication, subtraction and division. The execution of binary operations inside a circuit would be greatly advanced by improving the performance of the digital adders. The main aim of designing the bit serial adder is to perform one bit at a time, using the first bit operation results to influence the processing of subsequent bits. Here in this case the one bit serial adder is designed by using a flip-flop and full adder. . This circuit has two stages full adder stage for the addition of two bits that are entered serially and second stage is flip-flop stage which temporarily stores the carry until the next stage is processed. The temporary storage of the carry in the flip-flop depends on the clock pulse. Its design principle shows how the two inputs entered serially. These two inputs will be added by the full adder along with the carry which was temporarily stored by the flip-flop and gives us the sum output and carry output. The normal 1-bit serial adder uses the XOR gates from the available core library. But in this XOR gate there is an OR gate which usually reduces the performance of the XOR gate. Hence the circuit has been modified by designing the XOR gate by using the NAND gates. What we would like to do now is find the easy way to use the sub tractor along with the serial adder circuit. By using this sub tractor we can subtract the lower bit value from higher value. This binary sub tractor has been added to one of the input which we are thinking to subtract the value. In our serial adder circuit the sub tractor is attached to the one of the inputs Y which is usually a XOR gate. This results in the subtraction of Y value from higher bit values. BACKGROUND 2.1 Addition: Addition is a process of adding bits. Binary addition means adding binary bits 0s and 1s and sum and carry generated in binary farm in any signal processing. Now lets consider the 4-bit addition example, As shown above A and B bits added giving Sum out by rippling the carry at each stage and C4 as final carry obtained. 2.2 Subtraction: Subtraction is a process of adding a positive bit to the negative bit. Negative of a bit means 2s compliment of it. This is nothing but adding 1 bit to LSB of its 1s compliment. 1s compliment is nothing but reversing the logic of the bits. Now lets consider the 4-bit subtraction example, The above subtraction technique dedicated to the subtracting a smaller binary from a larger binary. If it changes it just followed by few more steps as change sign bit (MSB) to zero, then change it to its 2s compliment as before process. Metal-Oxide-Silicon Field-Effect transistors (Mosfets) NMOS Transistor Here is a diagram of nmos transistor The source and drain are connected to the two blobs of n-type semiconductor material. The gate is on top, separated (and electrically insulated) from the rest of the transistor by a thin layer of silicon dioxide (same material as sand doesnt conduct at all). The source and drain are separated by p-type material. This forms two diodes pointed in opposite directions (when you have n-type next to p-type material, you get a diode), so no current can flow between the source and drain. When a high voltage (higher than the voltage level of the source, which is defined as the lower voltage of the two end terminals) is applied to the gate, it puts a positive charge on the gate. This attracts a negative charge in the region underneath the gate (opposite charges attract), forming a channel of negative charge carriers or an n-channel between the source and drain, which allows current to flow. So the nMOS transistor conducts when the gate is raised to the high voltage level, which we consider to be the logic level for 1 (true). PMOS TRANSISTOR The pMOS transistor is the dual of the nMOS transistor. You can look at the same diagram, but swap every n and p, and every + and -. Now, when the voltage at the gate is lower than the source (the higher voltage of the two end terminals for a pMOS transistor), we end up with a negative charge on the gate, which induces a positive channel underneath the gate, which allows current to flow. So the pMOS transistor conducts when the gate voltage is low, which we consider to be the logic level for 0 (false). The full names of what is being described are enhancement mode n-channel or p-channel metal-oxide semiconductor field effect transistors (MOSFET). Enhancement mode refers to the fact that we have to create the channel by applying voltage to the gate. (There are also depletion mode transistors that have a channel built in to start with.) Field effect refers to the fact that were using the electric field from the charge at the gate to control things. Metal-oxide semiconductor refers to the fact that were using an oxide to insulate the gate from the rest of the transistor. The two types of transistors are named for the channel: nMOS has an n-channel; pMOS has a p-channel. Cmos There are many ways to make logic gates (not to be confused with the gate of the transistor) out of transistors. What Im showing here is the dominant way that gates are done in digital electronics today, but there are many variations out there. This is called static CMOS logic. Static refers to the fact that there are not clocks involved. CMOS stands for complementary metal-oxide semiconductor. The complementary means we have both nMOS and pMOS transistors. The intuition behind this design style is simple. First, you dont want to have nMOS and pMOS transistors mixed up close to each other, because they need to be created on different types of substrate. So the natural style is to have a bunch of nMOS transistors together that pull the output one way for certain input values, and a bunch of pMOS transistors together that pull the output the other direction for the other input values. It turns out to work better to have the nMOS transistors pull down toward logic 0 and the pMOS transistors pull up toward logic 1. This is both for electrical reasons (nMOS conducts 0 better; pMOS conducts 1 better) and also to make it easy to get inverting gates. The following diagram showing how to make an inverter (a NOT gate): Such that we developed CMOS Technology by combination of Pull-up network of PMOS Transistors and Pull-down network of NMOS Transistors. All the CMOS gates are constructed using as shown below. CMOS Constructed by, PMOS transistors in Pull-up network stage and NMOS transistors in Pull-down network stage. OUTPUT going 1->0   The Pull-down NMOS transistors discharges the output capacitance. OUTPUT going 0->1 The output capacitance is charged through Pull-up PMOS transistors. MOSFETs transition states in CMOS Transistor: CMOS logic is better logic than PMOS and NMOS implementations individually. Because PMOS transistors are great at transmitting a logic 0 to1 voltage without signal loss, NMOS transistors are great at transmitting a logic 1 to 0 voltage. 4.2 NAND GATE: Constructed by, As shown below PMOS transistors in parallel and NMOS transistors in series. OUTPUT going 1->0    The series NMOS transistors discharges the output capacitance. OUTPUT going 0->1 The output capacitance is charged through parallel PMOS transistors. Circuit diagram of NAND Gate: Logic symbol of NAND Gate: Truth table of NAND Gate: A B OUTPUT 0 0 1 0 1 1 1 0 1 1 1 0 4.3 NOR GATE: Constructed by, As shown NMOS transistors in parallel and PMOS transistors in series. OUTPUT going 1->0 The parallel NMOS transistors discharges the output capacitance. OUTPUT going 0->1 The output capacitance is charged through series PMOS transistors. Circuit diagram of NOR Gate: Logic symbol of NOR Gate: Truth table of NOR Gate: XOR GATE: XOR is also called Exclusive OR gate or EOR gate. This is a digital logic gate, which is used to express the function of Exclusive Disjunction. Its behavior is similar to or gate with exclusive condition. Usually it is a 2-1 input output IC respectively. An output HIGH (1) will be resulted if one, and only one of its 2 inputs is HIGH (1). Result of output LOW (0) both the inputs should be same either low or high. We can say EX-OR gate as One or another, but not both. XOR gate is used to develop a binary addition. It gives the sum for given input bits. As shown above xor of 2 bits A and B gives its sum. A xor B = A.B + A.B Circuit diagram of xor gate: BASIC ADDER UNIT Addition of two binary numbers is the most basic arithmetic operation i.e. two bits. A combinational circuit which can add only two bits is known as half adder. A full adder is one that adds more than two bits i.e. three bits. Full adder uses two adders in its implementation. In this study full adder is the basic addition employed in all adders. HALF ADDER Half is a basic adder circuit that can perform addition of two bits and gives the output of sum and carry. Half adder circuit uses an Exclusive-OR and AND gates for sum and carry outputs. XOR gate gives the sum output and carry output is given by the AND gate. X and Y are inputs S is sum and C0 is carry. S = X.Y + X.Y = X Ġ¦ Y C = X.YIts schematic representation is as shown in the figure. The truth table of half adder is as shown below. X Y SUM C0 0 0 0 0 0 1 1 0 1 0 1 0 1 1 0 1 K-MAPPING of half adder circuit is given as shown below. Sum, S = X Ġ¦ Y Carry, C0 = X.Y FULL-ADDER Full adder can be formed by combining two half-adder circuits followed by the OR gate. It can perform the addition of three bits along with the carry input given as output from the previous one. The difference between half adder and full adder is that half adder cannot count more than two bits and cannot add the carry input which will be possible in full adder circuit. In this circuit, sum output is given by the XOR gate and the carry output is given by the AND gate followed by the OR gate. The block diagram of full adder circuit is as shown below. FULLADDER Sum S = X Ġ¦ Y Ġ¦ CI = (X Ġ¦ Y) Ġ¦ CI Carry C0 = (X .Y) + (X Ġ¦ Y).CI As shown in the above figure X, Y and CI are the adder inputs. The truth table of the above circuit is as shown below. X Y CI SUM C0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 1 1 1 By using K-mapping we will get SUM and CARRY as follows Sum S, Carry c0, D FLIP FLOP D- Flip flop is used in many applications. RS flip flop is the fundamental building block for the D- flip flop. It has only one data input. That is connected to the input S of RS flip flop where as D is inversely connected to the R input.. D- Flip flop is also having second input for holding the data which is known as Enable, simply represented as EN. The enable input is AND-ed with the D- Flip flop. D- Flip flop holds the data according to the clock pulse. It is constructed by using AND gates and NOR gates as shown in the below figure. D and EN are the inputs and Q and Q are outputs. The block diagram of the D-flip flop is as shown below. D- Flip flop acts as temporary data storage in the 1- bit serial adder. Its storage capacity depends on the number of stages. The storage capacity of the D- flip flop in this serial adder is the total number bits (0 and 1) of digital data it can retain. Its truth table is a shown below. D EN Q QN 0 Falling edge 0 X 0 Rising edge 0 1 1 Falling edge Qprev X 1 Rising edge 1 0 . The wave forms are attached in the results. CHAPTER 2 SERIAL ADDER The process known as serial addition of binary numbers is well known in the digital and units capable of performing such serial binary addition ordinarily comprise a basic portion of more complex computation devices. In the past, such serial adders for binary numbers have employed vacuum tube circuitry for the most part and have accordingly been subject to the disadvantages that they are relatively in large size, fragile in configuration and are subject to operating failures. These factors raise serious questions of disposition of components and problems of maintenance. The present invention serves to obviate the foregoing difficulties and in essence provides a serial adder structure capable of performing full addition of binary numbers. It is accordingly an object of the present invention to provide an improved serial adder for use in digital systems. The main aim of designing the bit serial adder is to perform one bit at a time, using the first bit operation results to influence the processing of subsequent bits. Here in this case the one bit serial adder is designed by using a D-flip flop and full adder. . This circuit has two stages full adder stage for the addition of two bits that are entered serially and second stage is D-flip flop stage which temporarily stores the carry until the next stage is processed. The temporary storage of the carry in the D-flip flop depends on the clock pulse. Its design principle shows how the two inputs entered serially. These two inputs will be added by the full adder along with the carry which was temporarily stored by the flip-flop and gives us the sum output and carry output. This is a practical serial adder that is used to add a stream of two bits addition. First it takes the Least Significant Bits (LSB) in addition. Its block diagram is as shown in the figure. As shown in the above figure the inputs Xi and Yi are serially entered into the full adder along with the temporary carry from the D-flip flop i.e. Ci and gives the carry output Ci+1 and sum output Si. Hence serial adder is simple and because of feedback looping bit delays are expected. It can be constructed with very low cost and it is the perfect adder at low speed operations. Si = Ci Ġ¦ Yi Ġ¦ Xi Ci + 1 = Yi . Ci + Xi . Ci + Xi . Yi = Ci . (Xi Ġ¦ Yi) + Xi . Yi The above equations represent the Sum and Carry outputs using Boolean equations. The construction of 1-bit serial adder is as shown in the figure. As shown in the figure the inputs X and Y are serially entered through the full adder along with the carry input which was the feedback output of full adder. In this circuit, sum output is given by the XOR gate and the carry output is given by the AND gate followed by the OR gate. D- Flip flop used in this circuit acts as a temporary storage of carry. TRUTH TABLE X Y C00 S CO 0 0 1 1 0 0 1 1 0 1 1 0 1 0 1 1 1 0 0 1 0 0 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 This entire design process and simulation can be done by using the mentor graphics version 2005 software. Chapter 3 Nand gate design of serial adder: 4.4 NAND gate is BETTER THAN NOR. As PMOS in parallel and NMOS in series the resultant transition delay at NAND gate is lesser than delay of NOR gate architecture. To make PMOS as fast as NMOS we need enlarge channel and P-regions, but that leads to large silicon layout, and more cost and power wastage. So At same speed NOR is always larger than NAND. So it makes NAND more efficient than NOR. W/L ratio of NAND gate is smaller than NOR gate. If inputs for gates are more then, NAND will be very faster than NOR. So we use sop implementation rather than pos. XOR GATE USING NAND GATES In PMOS holes flow very slowly when compared to the electrons in the NMOS technology. Hence NMOS is faster than PMOS transistor. In NOR gate PMOS transistors are connected in series and in NAND gate PMOS transistors are connected in parallel hence NAND gate is faster than the NOR gate. Now considering another case to make this one bit serial adder little bit faster compared to the normal one bit serial adder the XOR gate is constructed by using the NAND gates which works faster than the normal XOR gate. The reason for constructing this XOR gate is that in the core library we are using to design the entire circuit XOR gate internally contains an OR gate which usually reduces the performance of XOR gate. Its circuit diagram is as follows. X Y OUT 0 0 0 0 1 1 1 0 1 1 1 0Its truth table is as shown below. D- Flip Flop using nand gates: D Flip-Flop is the most popular Flip-Flop. As its output takes the value of data ( D ) input when the positive edge of clock pulse. D Flip-flop can be interpreted as a primitive memory cell. D Flip-flops are basically used as Shift registers. As a D Flip-flop can produce a output signal with a time period delay of given clock pulse for an input signal i.e., one bit shifted right to the input given signal. The principle of D flip-flop is it captures the signal at the moment the clock goes high, and subsequent changes of the data lines do not influence Q until the rise of next clock edge. thus it works as a edge triggering mode at clock signal rising. D Flip-flop is constructed using NAND gates as shown above, where D and CLOCK are the inputs and Q and QN are the out puts. X Y C00 S CO 0 0 1 1 0 0 1 1 0 1 1 0 1 0 1 1 1 0 0 1 0 0 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 CHAPTER 3 SUBSTRACTOR Up to now we have seen how simple logic gates perform binary addition. It is only logical to assume that the same circuit can also perform the binary subtraction. If we look at the possibilities involved in subtracting one bit number from another, we can quickly see that three of the four possible combinations are easy and straight forward. The fourth one involves a bit more. 0 0 = 0 1 0 = 1 1 1 = 0 0 1 = 1, with a borrow bit. That borrow bit is just like a borrow in decimal subtraction: it subtracts from the next higher order of magnitude in the overall number. The truth table of this sub tractor circuit looks like as shown below. This is an interesting result. The difference, X-Y, is still an exclusive-OR function, just as the sum for addition. The borrow is still an AND function, but is XY instead of XY. Adder/Subtractor logic developed using NAND gate (lower from higher): Addition is adding positive two bits. Subtraction is nothing but an addition where we add one positive bit to another negative bit. That means the second bit will be the positive number with negative polarity. We can convert positive binary to negative binary by its 2s compliment. 2s compliment is nothing but adding 1 bit to the LSB side of 1s compliment. 1s compliment is in any binary code if we swap bits by 1 bit with 0 bit and 0 bit with 1 bit. That is flip the binary code image. 1s compliment can be generated using XOR logic. when we give one pin of XOR gate dedicated to positive as logic 1, and other pin connected to the input binary bit, then output of EXOR will be swapped by 1s with 0s and 0s with 1s. At the same time other advantage is if the dedicated input pin is given logic, then out put will be same as input binary code. Such that in that whole circuit by changing selective pin as 0 logic it works as adder and by changing selective pin as 1 logic it works as subtractors 1s compliment input. Let we consider A + B it is a simple addition, For A B = A + (- B) = A + (B 1s compliment + 1) = A + B 1s compliment + 1 As shown above to find A B we give the full adder inputs as a to A, b to B 1s compliment and finally c in as positive logic 1. Thus adding 2 bits of A And B in this way we get A- B. Above developed subtractor circuit subtracts lower value bit from higher value bit so in 0-1 condition its not valid. ADDER TRUTH TABLE WHEN EN =0 EN X Y C00 S CO 0 0 0 1 1 0 0 0 1 1 0 1 0 1 0 1 0 1 0 1 1 0 0 1 SUBSTRACTOR TRUTH TABLE WHEN EN =1 EN X Y C00 S CO 1 0 0 1 0 0 1 0 1 1 X X 1 1 0 1 1 0 1 1 1 1 0 1 IMPLEMENTATION The entire process of designing and layout of the 1-bit serial adder circuit is done by using the mentor graphics version 2005. The required logic gates and flip flop has been taken from the core library. Once taking all the required components from the core library wiring has been done again using the core library. One wiring has been done the sheet has been saved and done the schematic check. Once the schematic check has been done successfully then the view point has been created. Once view point has been done successfully the circuit has been run for simulation. After having done the simulation successfully the output waveforms has been checked. This output waveforms results the working of the entire circuit design. Once we got the outputs exactly what we are looking for we then go for layout design. This layout design is also done by using the core library which is known as silicon layout. After finishing the layout we will check the overflow of the IC which we will get at the en d of the process. Conclusion: In the project of One Bit Serial Adder we obtained the knowledge about the functionality of adders and developed a fast adder using NAND gate Logic. We even obtain the knowledge about CMOS technology and functionality of IC Gates. As we developed using NAND gate logic implementation the architecture of IC will be much faster and efficient. From the obtained results of Serial adder waveforms and IC design by comparing the theoretical and practical values are verified each other. Such that I can conclude the developed ICs are well functioning in any application era with a delay of 0.5921ns. Finally I concluded that a 1-bit Serial adder is developed in Conventional, NAND gate architecture and Adder/Subtractor architectures IC design and layout of IC design obtained and verified without errors. Functional and Electric Characteristics studied similar to CMOS technology as they developed.

Assessment of Developmental Stages of a Child

The significance of milestones Milestones are usually grouped together in five major areas which are to be assessed during the growth and development of a child. They are: physical growth, cognitive development, language development, and sensory and motor development. The assessment of the physical development of a child is very important during the growth and development of a child from infancy to adolescence and also the later years, it helps in that it allows the parents of the child as well as health care workers to see if there are any abnormalities in the child during this period of time.The assessment of the cognitive development of the child is also very important in order to detect if the child has any difficulties in learning, grasping and understanding concepts such as dyslexia. Social and emotional development should also be assessed in order to see how well the child can interact with peers and other persons in order to determine if the child has or will have a phobia in the later years of his or her development.The study was conducted in the presence of a nine year old child where in all the following areas of development were observed physical development, cognitive development, and social and emotional development. The reason why this specific age was selected was because it would have provided more opportunity for the researcher to observe and assess the different areas of development vastly and on a wider scale. Letters were sent to the parents of the child explaining the reason of the research and the different areas that were being observed.The researcher presented herself in a modest way so that the child would feel a sense of comfort while under observation. The study was conducted over a four day period where the following findings were observed. Day One On day one the area of focus was physical development. The writer started out by assessing Amanda (not her real name) who is nine years old, she weighs ninety pounds and measures 4feet 9i nches. Being that she is nine years old, she has passed the some of her milestones which includes sitting up and rolling over.The researcher also asked the parents of the child other questions such as; at what age did she start creeping? At what age did she start creeping? At what age she began sitting up on her own? Among a host of other questions pertaining to her growth and development physically. This was to find out if the child had any physical disabilities during her earlier stages of growing and developing. The writer further went on to investigate how much the child could follow instructions. As a result the child was then asked to get dressed both formally and informally.The instructions were followed accordingly. She was able to dress herself properly; this allowed the researcher to see how well the child can follow instructions when given. She is able to understand, analyze and follow the directions when given. After looking at how the child followed instructions in rega rds to getting dressed, the researcher went on to observe how the child manipulated objects. This was done by placing the child in an area where different types of objects were present. She was able to differentiate between shapes and the objects that were present.Jigsaw puzzles were solved, shapes were recognized and the child was able to identify other objects in and around the play area. This indicated that the child while at play displayed great sensory motor skills and can use them effectively; she also seems to be well alert and has a great sense of humor she also seems to deal with different types of situations how they ought to be dealt with. Day Two On day two the researcher’s main area of focus was on cognitive development, this area of focus is mainly linked to Piaget’s theory of cognitive development.Jean Piaget’s theory of cognitive development focuses on four stages. They are: sensory motor, pre operations, concrete operations and formal operations . Piaget observed that cognitive development refers to changes that occur in an individual’s cognitive structure, ability to process from childhood to adulthood. Piaget went on to state that at this stage (concrete operations 7-11), the child should be able to; conceptualize effectively, solve problems easily and create logics based on his or her cognitive experiences.The child observed was able to have discussions on a more logical basis and gave positive responses. The child was able to sit with the researcher and have discussions about her life as a little girl. She was asked different questions such as; what she would like to become in the future? How big would she like her house to be? What type of car would she like to own? Among others, she gave positive responses and seems to be well prepared for her future.She gave response such as; â€Å"I would like to become a doctor and have my own business running different from my career such as a super market or a toy store f or little kids, I would also like to own a three story house with two Toyota motor vehicles and my house is going to be surrounded by some big pit bull dogs and will be under twenty four hour security protection†. The researcher noted how effective the child was able to use the English language. She speaks the English Language fluently for a child her age.Many factors though is said to have contributed to this as the mother recalls that during her pregnancy, she read a lot. The child is provided with the proper printed resources and education friendly. The child is also provided with games that will enhance her memory she has both printed and electronically inclined games to enhance her memory. This type of environment enables her to gain the knowledge and necessary skills required to be able to: 1) reason effectively, 2) solve problems effectively, 3)explore the environment. 4) have a good memory.The child was always corrected whenever she makes a mistake. Hence, the child ha s a full advantage of how to speak English language as to Creole which is dominant in her community. In Piaget’s theory of cognitive development the child has passed the first two stages which are sensory motor (stage one) and pre operations (stage two). The child is presently at the concrete operations which she is almost completed all the activities that are to be done at this stage effectively. Day Three and Four The area of focus on days three and four were social and emotional development.Social and emotional development is a very important aspect of development in a child’s life. It is normally harder to pinpoint than other signs of development such as physical development. This area emphasizes many skills that increase self-awareness and self-regulation The researcher observed the child while she was interacting with some of her friends that came over to her house, since this was the most convenient to the researcher as well as to the child. Based on the observa tions the child seems to have communicated well and had no difficulty responding and interacting with her peers.At play the child seemed to be enthused and played well with her friends. She seemed to be the leader of everything they did in their peer group and was always quick to correct her friends whenever any of them made any mistakes. This is a clear indication that Amanda has no difficulties when interacting with her peers, and also seem to have pleasure during interaction with others. During meal time, the researcher had the opportunity to sit with the family for a few minutes to observe Amanda at meal time.She seems to have good etiquettes and knows how to conduct herself when she is around the table and was correcting her smaller sister when she did not conform to the table rules. She was also sharing with her parents what her teacher taught her at school about do’s and don’ts while sitting around the table at meal time. She was able to maneuver the knife and f ork properly and she was enthused in sharing some of the family traditions and norms that were passed down to her by her family with the researcher she also gave her view point on them when asked.She seems to have good communicating skills and enjoys interaction with her peers, family and also with others. When interacting with her friend she explained to them that she does not like to be shouted at also whenever her mother talks to her in a rough manner he goes to sit by herself and appears to be sad. Whenever her father comes in from work she normally runs to him and gives him a big hug. This shows that the child is emotionally attached to her parents.

Comparative Essay World Literature I Analysis of the...

Franz Kafka, in his novella â€Å"The Metamorphosis†, and Harry Mulisch, in his novel The Assault, uses dark, lonely diction and imagery to create the isolation within the protagonists. The setting symbolizes how the protagonist’s isolation continues to enlarge throughout the book. At the beginning of both the novels, the setting is more open and light, which is compared to the characters’ isolation that is less bordered and complex. As the settings grow smaller and the characters become lonelier, Anton and Gregor’s isolation become more pronounced. Gregor is gradually becoming isolated by his family causing his transformation to progress rapidly, while Anton’s family is growing, but his isolation is conflicted upon himself, causing the setting†¦show more content†¦Similarly, the setting in The Assault also expressed Anton’s isolation as he moved from city to city, but is trapped within his own self-conscious as the memories of his past gradually keeps coming back to him as he tries to keep a normal life. At the beginning of the novel, Anton is taken away from his family by Nazis who have invaded their home, causing the base of Anton’s isolation. After Anton is taken from his home, he is sent to a jail where he meets a mysterious woman. As he recalls his past events with the woman, he is starting to shut down his ability to share his memories with other people, comparing to the setting that shows â€Å"darkness filled [with] black water† (Mulisch 32), representing the beginning of Anton’s isolation. Later in the story, Anton settles into his aunt and uncle’s home and begins his new life as a medical student. He returns to Haarlem where â€Å"he wanted to say goodbye once and for all† (Mulisch 61). Anton comes across an embankment, symbolizing his limitations, where he gazes across to his old home. Anton adds to his isolation as he â€Å"jerk[s] his face away from the water, in the other direction’ (Mulisch 76), further burying his past memories deep inside him as he can’t face the painful memories that lie ahead. As Anton grows older, he begins to push every bad memory aside and tries to forget about them, thus creating an abundance of built up issues. While his family and homes grow, his isolation continues to growShow MoreRelatedOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words   |  656 PagesLinda Shopes, eds., Oral History and Public Memories Tiffany Ruby Patterson, Zora Neale Hurston and a History of Southern Life Lisa M. Fine, The Story of Reo Joe: Work, Kin, and Community in Autotown, U.S.A. Van Gosse and Richard Moser, eds., The World the Sixties Made: Politics and Culture in Recent America Joanne Meyerowitz, ed., History and September 11th John McMillian and Paul Buhle, eds., The New Left Revisited David M. Scobey, Empire City: The Making and Meaning of the New York City Landscape Read MoreOrganisational Theory230255 Words   |  922 Pagesthought-provoking, witty and highly relevant for understanding contemporary organizational dilemmas. The book engages in an imaginative way with a wealth of organizational concepts and theories as well as provides insightful examples from the practical world of organizations. The authors’ sound scholarship and transparent style of writing set the book apart, making it an ingenious read which invites reflexivity, criticalness and plurality of opinion from the audience. This is a book that will become aRead MoreProject Mgmt296381 Words   |  1186 Pages4 Projects and programs (.2) 2.1 The project life cycle (.2.3) App. G.1 The project manager App. G.7 Political and social environments F.1 Integration of project management processes [3.1] 6.5.2 Setting a schedule baseline [8.1.4] 6.5.3.1 Setting a resource schedule 6.5.2.4 Resource leveling 7.2 Setting a cost and time baseline schedule ( 1.3.5) [8.1.3] 6.5.2.3 Critical chain method Chapter 9 Chapter 10 Reducing Project Duration Leadership Chapter 2 Organization Strategy and Project Selection

The Plague Of The Black Plague - 1261 Words

The Black Plague is a disease that spread around the world and killed many people. There are three different types of the plague; Bubonic, Septicemic, and Pneumonic (Dugdale). The Black Plague effected Europe greatly and effected there way of life. It came to Europe around the 1300s and had a great impact on society in the 1500s (History). Important parts of the black plague are the different types of the plague, how they spread, treatments for them, and effects the plague had on Europe in the 1500s. Within the plague there are three different forms; Bubonic, Septicemic, and Pneumonic. The symptoms of the plague vary from the different kinds. Some symptoms that come with all the different kinds are fever, chills, cough, and buboes-a swelling in the lymph gland (Dugdale). Basically the symptoms are those of a bad flu plus a swelling of the lymph gland. After coming in contact with the bacteria the signs or symptoms will start to appear in 2-6 days for Bubonic and Pneumonic. For Septic emic symptoms will appear in 1-6 days (History). If people had these symptoms with some other symptoms in the time of the plague in Europe, they probably had been infected. With the different kinds of the plague there were also different fatality or death rates. For the Bubonic form, which was the most common, you had a fifty percent chance of living once diagnosed. With the Septicemic form you had almost no chance of living because it had a one hundred percent fatality rate. Luckily this wasShow MoreRelatedThe Plague Of The Black Plague1624 Words   |  7 Pageswhat became known as the Black Death of the fourteenth century, possible death to most, spread by measly fleas and rats. Because of the rapid outbreak of this terrifying disease, death defying symptoms, and resulted in the death of 25 million people, the Black Plague is considered the greatest catastrophe ever.†¯ †¯Ã¢â‚¬ ¯Ã¢â‚¬ ¯Ã¢â‚¬ ¯Ã¢â‚¬ ¯ The Black Plague started in Italy. The plague traveled from Italy to Europe. 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This plague killed entire families at a time and destroyed a minimum of 1 village. Greatly causal to the Crisis of the Fourteenth Century, Not only did the black plague take a devastating toll on human life, but it to boot contend a major role in shaping European life among the years following. The black plague consisted primarily of plague; but plague was to boo t gift among the epidemic. SymptomsRead MoreThe Black Plague608 Words   |  2 PagesThe Black Plague What is the Black Plague? The Black Plague first was found in Europe around the 1300’s, killing roughly about 25 million people. The disease was often carried by rats and their fleas. People contracted the plague when they were bitten by a flea that carried the plague bacteria from a rodent. The cause of plague was not discovered until the famous outbreak in China, in 1855. The first breakthrough came in Hong Kong, when researchers secluded the rodent bacteria, known as,YersiniaRead MoreDeath by the Black Plague1017 Words   |  4 Pages The plague was the most devastating pandemic in human history, killing around 80-200 million people mostly throughout Europe, leaving most people back then wondering how they and others got sick and died. â€Å"Evidence available from rural continental Europe suggests a slow spread of human mortality across trade and travel routes, patterns consistent† (Carmichael 3), until after multiple inventions such as printing, word spread of this murderer, preventing mo re deaths and to treat those affected. ThisRead MoreThe Black Death Plague795 Words   |  3 PagesThe Black Death is one of the worst disease in ancient history. 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Creating economic, social, religious, and medical issues, the Black Death causedRead MoreBlack Plague And The Black Epidemic1337 Words   |  6 PagesBlack Plague The Black Plague outbreak was one of the scariest events in human history. The people were afraid to do everyday activities and carry on with their normal routines. This plague is known to almost every person on Earth. Even as a kid, teachers tell their students about this plague. Even the thought of an outbreak like the Black Plague makes people’s skin crawl. I am included in that category. It has gotten to the point that when any outbreak of any type or kind of disease happens