Wednesday, October 30, 2019

THE ORIGIN AND DEVELOPMENT OF CHRISTIANITY Essay

THE ORIGIN AND DEVELOPMENT OF CHRISTIANITY - Essay Example According to Hauer and Young (1998), â€Å"On one point, devout Christians were obdurate in their resistance to Roman policy which encouraged the cult of the divine emperor. The cult of the emperor was more popular in the Roman provinces than in the Rome itself. It was also highly admired in the provinces than it was in the divine kingship of the eastern Mediterranean† (pp. 338). The Romans were initially threatened by Christianity because leaders who stood and believed in the status quo did not encourage any shift of power from one social group to another. In fact, a shift in power would amount to quite big problems. It all boiled down to money. Without enough people to make sacrifices at the temple cultus, people who worked in the temples and made money as moneychangers in the temples did not make money off to Christians, who refused to participate due to the new wave of thinking brought in by Christianity; Christians were viewed as overly exclusive and hence dangerous to the society in general and public order. Christians had no respect for other gods and they therefore refrained from public festivals that were meant to honor public deities. In fact, they never worshiped state gods and the imperial cult. They neither worshiped nor recognized the emperor as the leader of religion. This turned out to be unfortunate for the Romans, who wanted to stay powerful. Therefore, were treated with suspicion and regarded as stubborn and somewhat subversive to the State solidarity. Christianity and Graeco-Roman humanism share many common elements: For instance, they both focus upon fellowship and humane treatment of people and animals. However, Christianity is not as cultic as much as the Graeco-Roman humanistic religious perspective. Christianity is also much more religious in terms of being focused upon the deity of Jesus than the Graeco-Roman humanism was focused upon any particular deity, although several deities were

Monday, October 28, 2019

The data protection act Essay Example for Free

The data protection act Essay When the modem is switched on, it sends out an ASCII character known as DC 1. This is the transmit enable code and is decimal 17 or 11 hex. This code is received by the computer, which knows that it is able to commence transmitting data to the modem. This is the XON condition. If there is incoming traffic, the modem sends out an ASCII DC3 character. This is the XOFF condition and is 19 in decimal (13 in hex). The computer receives this code and stops transmitting data Note:   This method is be used with a serial printer. It sends out an XOFF code when its intemal buffer is full. As it prints, it reduces the amount of characters in its buffer. When the buffer has sufficient space, it sends out a DC 1 code to the computer, which resumes the transmission of data to the printer.   The ASCII codes DC 1 and DC3 stand for Device Control 1 and Device Control 3.   This method can transmit and receive text files, since the printable ASCII set ranges from 32 to I ~ Binary files (i. e. containing machine code) contain a full range of possible numeric values. This would include the values for the DC 1 and DC3 signals, which means that XON/XOFF is not suitable for transmitting and receiving binary files. RS232 Pins A summary of the uses of the main pins on a computers serial port is shown in the following table.   DTR Data Terminal ready The computer informs the modem that it is powered up and ready to be active, by switching this pin to an ON state. Most modems require to receive this signal before they will operate   DSR (Data Set Ready) The modem informs the computer that it is powered up and ready to be active, by switching this pin to an ON state. Most computer ports require this signal before they will operate CTS (Clear to Send) The modem informs the computer that it is able to accept data for transmission, by switching this pin to an ON state. The computer will not send out data while this pin is OFF   RTS (Ready to Send) The computer informs the modem that it wishes to give it data for transmission, by switching by switching this pin to an ON state The modem responds by switching its CTS line ON unless its memory buffer is full, or it is receiving incoming data.   TXD (Transmit Data) Carries the data from the computer to the modems RXD pin, to transmit data. Carries the data from the modem to the computers RXD pin, to receive data.   RXD (Receive Data) Receives the data from the modems TXD pin, to receive incoming data. Or Receives the data from the computers TXD pin, to send outgoing data.   DCD Data Carrier detect Used by the computer to determine whether the modem has an incoming carrier (i. e. whether the line is idle or not). Some communications packages must detect a DCD signal before they will carry on. This signal can be brought from the modem or can be provided locally by a wraparound. This connects the computers DCD pin to the computers DTR pin to simulate an idle condition.   RI (Ring Indicator) This pin could be used by an auto-answer modem. Its value is raised high when the phone rings. The modem informs the DTE via this change in the RI line and the DTE responds by setting its DTR line high. The modem then answers the call and data is passed from the telephone line to the DTE. * SG (Signal Ground) This pin is used as the reference for all other signal voltages. So, if a pin swings +15 it means that the pin is a 15 volts higher than the voltage on SG. This pin should not be confused with electric earth or Frame Ground (FG). Error Detection Modem communication over the normal telephone network is always prone to losses due to poor line conditions. As transmission rates become faster, the losses are increased. If an interference pulse occurred on a line a 28,800bps system, the transmission would be affected 24 times more badly than a 1,200bps system, since 24 times more data will have been transferred during that time. Serious attention needs to be paid to detecting and correcting such errors. The parity bit system described earlier is only a rudimentary check and only applies to ASCII files. Since most files are not plain ASCII, they will require to use all eight bits of the byte and there will be no parity bit. CRC Checking Data is transmitted in blocks or packets with a checksum created using the CRC (Cyclic Redundancy) method. When the data is compiled into a block prior to transmission, a mathematical formula using polynomial codes) is applied to the data to produce a check number that is unique to the data in the block. These check digits are then transmitted along with the data. The receiver stores the incoming block of data in a buffer for examination. The same formula is applied to the data in the buffer d it should produce the same answer as that stored in the check bytes. If the computed CRC figure accords with the stored CRC figure, the data in the buffer is fit to be passed on and an ACK signal is returned to the transmitting end to acknowledge the receipt of a block in good condition. If there has been any corruption of the data in the block, or even any corruption of the check bytes, then the formula produce answers that do not match. In this case, the device will request that the block of data be retransmitted This is done by returning a NAK signal to the transmitting end. A number of different block transmission techniques and error detection methods are in common use they are referred to as File Transfer Protocols and include: XModem XModem sends a 128 byte block of data plus one checksum byte constituted from the sum of all the ASCII codes the block. It then waits for an acknowledgement that it has been received. The waiting time reduces the average data transfer average. All errors are given ten retries before abandoning the file transfer. It also has a ten-second timeout; it sends a NAK signal if has not received any incoming signal after a ten second wait. A variation known as Xmodem/CRC sends the same 128 byte block but sends two CRC bytes. This increases the redundant bytes to be transmitted but it improves the reliability of the system and is used in preference to Xmodem where it is available. Kermit Kermit is a long established system used with mini-computers and mainframes as well as PCs. It also uses a 128 block and it provides a header with control information. Although it is widely available and reliable, it is a slow method. It is probably best used with noisy lines. Ymodem This method still uses 128 byte chunks but it sends eight of these chunks before sending a two-byte CRC code that covers the entire 1024 data bytes. The method also pads out the data block until it is exactly 1024 bytes. This is fast since most of the transmission is made up of real data and there is only two bytes of redundant information. However, on a noisy line, corruption of a single bit results in the entire 1024+2 bytes being re-sent. YModem is faster than XModem on good lines but worse on noisy lines. It also allows multiple files to be transferred in the one operation. The user selects the group of files to be transferred and the system sends them all during the one long operation. This is sometimes referred to as Ymodem/Batch. Zmodem The above systems send their block and then wait for an ACK or a NAK from the receiving end before sending another block. They are working in half-duplex mode, resulting in wasted waiting time. Many modem methods do not wait for a response between sending blocks. Using a full duplex system, it is still able to receive the ACKs and NAKs when they arrive but further transmissions can be undertaken in the meantime. When an ACK arrives it knows that a particular block has been received successfully, while an incoming NAK indicates an unsuccessful transmission of a block. The system keeps track by using a windowing system. Each outgoing packet is given a packet number along with the transmission. The incoming ACK or NAK will also have a packet number attached. In the event of a NAK the system knows which packet to re-transmit. The difference between the packet currently being sent and the most recent incoming ACK or NAK is known as the window. Since a single byte can contain 256 different numbers, there is a limit to the range of available packet numbers and older numbers are reused after they have accomplished a successful transmission. This means that the window covers a small range of the available numbers and is always changing. This gives the name sliding windows protocol; it is also implemented in the Sliding Windows Kermit and Xmodem systems. Xmodem, Ymodem and Kermit are used at speeds below 96,00bps. V42 is used at higher speeds and is implement in a ROM chip in the modem. The V42 standard encompasses the MNP 4 proprietary standard developed by Microcom. It is likely that future extensions of the V42 standard will move away from MNP 4 in favour of LAP-M (Link Access Protocol for Modems) scheme as already recommended by CCITT. The MNP 5 standard combines the MNP 4 error correction facilities with data compression. Like MNP 4 it is most commonly implemented in hardware although some communication packages implement it in software. Standards. Created by CCITT, The International Telegraph and Telephone Consultative Committee, working under the ITU (International Telecommunications Union) which is organised by the United Nations. These standards are divided into a number of groups, including:   V-series, dealing with telephone circuits   X-series, dealing with data networks 0-series, dealing with digital networks (digital exchanges, multiplexing, PCM, etc. )   I-series, dealing with ISDN (see later) V Standards There is a wide range of definitions and the most common ones are shown in the table. The V standards get their name from the first letter of the word vitesse, the French for speed although not all V standards are concerned with transmission rate. V24, for example, specifies the serial port standard and V42 and V42bis cover error correction. The bis added to a V number means that it is the second version of the standard. Dataflex, a large UK modem manufacturer, produces VFC models, also known V. Fast Class models, working at 28,800bps. These were introduced before the ratification of the V34 standard and there are some handshaking differences between their specifications. V. Fast modems can communicate with other VFC models at the top rate but with lA ~ ~t, ~k~1t lflO/ ~ V3 5 models, they can only communicate at 14,400 bps in about 10% of cases Modem Standards Specification Operation Circuit Max Bit Rate Modulation Technique Bell 103 Full Duplex Two Wire Switched 300 Frequency Shift Keying V. 21 Full Duplex Two Wire Switched 300 Bell 202 Half Duplex Two Wire Switched 1,200 Conditioned Lease 1,800 Bell 201 Half Duplex Two Wire Switched 2,400 V. 26ter Full Duplex Two Wire Switched 2,400 Bell 212 Full Duplex Two Wire Switched 1,200 Phase Shift Keying V. 22bis Full Duplex Two Wire Switched 2,400 Quadrature Phase Shift Keying V. 27 Full Duplex Four Wire Leased 4,800 Half Duplex Two Wire Switched 4,800 V. 29 Full Duplex Four Wire Leased 9,600 Quadrature Amplitude Modulation Half Duplex Two Wire Switched 9,600 V. 32bis Full Duplex Two Wire Switched 14,400 V. 34 Full Duplex Two Wire Switched 28,800 Bell 103 Full Duplex Two Wire Switched 28,800 V. 42 V42bis Data Comp V90 56,600 Even Parity The sending device counts the number of one bits in the character to be Panty Bit transmitted. If the number of these data bits is even, as in the top diagram, the parity bit is set to zero. If the number of one bits is odd, as in the lower diagram, 1001 1 10 the parity bit is set to one. Thus the total number of ones in the byte will Parity Bit always be even, no matter how many ones are in the character being transmitted0100101 If any of the data bits or parity bits is accidentally altered during transmission, the receiving device can detect the problem by counting the number of bits. If the total is not an even number, there has been corruption of the data. This provides an elementary check for data errors. Odd Parity Here, the sending device counts the number of one bits in the byte to be transmitted. If the number of these data bits is even, as in the top diagram, the parity bit is set to one. If the number of one bits is already odd, as in the lower diagram, the parity bit is set to zero. In this way, the total number of ones1 in the group is always maintained at an odd value. Note Parity checking is a useful facility but it is not foolproof. For example, two bits in a byte both being altered from zero to one would produce a correct parity check although the data in the byte had been corrupted. In practice, larger blocks of data are examined for corruption (see section later on Error Detection).

Saturday, October 26, 2019

Framework and Physics of an Autogyro Essay -- Physics Science Helicopt

To fully understand the physics of an autogyro, one must know what it is. An autogyro is an aircraft, similar to a modern helicopter in appearance, but with a few major dissimilarities. It, like a helicopter, uses an overhead rotor as its main source of lift. The rotor on an autogyro, however, is freely rotating, meaning it is not powered by any engine, and therefore applies no rotational force, or torque, on the machine. This nullifies the need for a tail rotor like that of a helicopter's because there is no need to stabilize the fuselage from twisting. Because of the fact that the rotor does not spin on its own to give itself thrust like a helicopter, it makes for the need of another form of forward propulsion. This comes in the form of a propeller, like that on an airplane, to propel the machine forward, which makes air to pass though the overhead rotor, causing it to spin and create lift. The faster the machine goes, the more lift the rotor creates. Autogyros can fly very slow, sink vertically down, take off vertically up if a jump-start is added, and even fly somewhat backwards. Something they cannot do, however, is hover. They can "hover against the wind" if a small breeze is present, but do not have the capabilities of actual hovering. Autogyros are excellent at maneuvering and can land on small platforms and oilrigs. Autogyros are generally small in comparison to helicopters, or any other type of aircraft. Hobbyists, the main producers of autogyros, typically make them in the range of 200-2000 pounds. This is extremely small in comparison to their fixed-winged, and forcefully rotating cousins. Because of this, they can traverse into very tight spots, slowly, and quietly, making them a great candidate for military reco... ...negative aestheticism extends throughout the machine, not remaining just in the front, thereby eliminating anyone to want to fly it. Thrust is the final and perhaps one of the most important forces in the system. Enough thrust allows you to overcome drag and therefore produce a net motion of forward, and therefore climb. The thrust in an autogyro system is different than that of a fixed-wing aircraft in that it is not always wise to give more or full power to correct an emergency situation. Often decreasing your thrust will produce a higher rotor speed. This has to do with the angle that the rotor hits the air. When you decrease thrust, the tail end of the gyro tends to dip down, making the rotor tilt back giving more air to hit the blades, and thereby increasing the rotor speed. In contrast, it would be wise to pull the stick back a bit when increasing thrust.

Thursday, October 24, 2019

Literature Review and Empirical Essay

From the early eighties to the nineties, the Standard Rate increased modestly, but is still below its mid-seventies level. While researchers have identified many reasons for the low UI recipiency rates over the past twenty years, many questions remain as to the causes behind the low rate and steps that policy and program officials might take to increase it. While the Standard Rate is the most commonly used measure to evaluate the effectiveness of the UI program, researchers have developed alternative UI recipiency rates to address some of the limitations of the standard measure. The standard measure is expressed as the ratio of the insured unemployed (i. e. , the number of regular UI claimants) to the total number unemployed. Alternative measures have been designed to better capture the effectiveness of the UI program by including the full range of UI programs available to the unemployed (beyond the regular program) and by more accurately defining the UI target population (a subset of unemployed workers). Purpose and Methodology The purpose of this report is to examine why the Standard Rate, as well as alternative recipiency rates, declined sharply in the early eighties and continued to remain well below their midseventies level in the early nineties. We critically reviewed the findings from the research literature to explore the factors others have identified to explain the drop in the UI recipiency rate. The literature review enabled us to identify factors for inclusion in our empirical analysis and to assess the effects of factors that could not be included in our own analysis. Our empirical analysis is based primarily on the methodology used by Burtless and Saks (1984) and focuses only on changes in the UI recipiency rate over recessionary periods. It is important to compare similar economic periods because the UI recipiency rate is higher during recessionary periods and lower during periods of economic expansion. We first replicated the analysis from Burtless and Saks, estimating the effects of various factors that influenced the rate used in their original analysis from the seventies recession (1975-76) to the eighties recession (1981-83). We then extended their earlier analysis by testing the effects of additional factors during that period. Next, we updated the analysis to include data from the most recent recessionary period in the nineties (1991-92). We chose the period in the nineties to be consistent with the periods of rising unemployment rates selected by Burtless and Saks. Finally, we extended their analysis by using the Standard Rate and two additional measures of UI recipiency selected to measure the performance of the UI programs during recessionary periods. Our conclusions about the effects of various factors on the UI recipiency rate are based on the findings from both the critical review of the literature and our empirical analysis. We also present evaluation design options to address some of the limitations of current knowledge. The Lewin Group, Inc. E-1 156059 Executive Summary C. UI Recipiency Rate Measures Four UI recipiency rate measures were selected for the empirical analysis. Standard Rate: number of weekly claims for regular program unemployment insurance benefits, as a proportion of all unemployed workers;1 All Programs Rate: number of weekly claims for all program (regular, extended and federal) unemployment insurance benefits, as a proportion of all unemployed workers; Standard Short-term Rate: number of weekly claims for regular program unemployment insurance benefits, as a proportion of job losers unemployed less than 27 weeks; and All Programs Job Loser Rate: number of weekly claims for all program (regular, extended and federal) unemployment insurance benefits, as a proportion of all job losers. The final three UI recipiency rates deviate from the Standard Rate by changing the definition of UI claimants, unemployed workers, or both. Because the All Programs Rate and the All Programs Job Loser Rate include all UI program claimants, Wandner and Stengle (1996) argue that they are generally better measures of UI coverage during recessionary periods when extended benefit programs are provided. The All Programs Job Loser Rate differs from the All Programs Rate because it targets a subset of unemployed workers (i. e. , job losers) who would be most likely to qualify for UI benefits. The Standard Short-term Rate only includes regular program claimants and the general â€Å"target population† for the regular state program, job losers unemployed less than 27 weeks. This final measure was used in the original Burtless and Saks analysis. All three alternative rates are larger than the Standard Rate because they use either a more expansive definition of UI claimants and/or a more restrictive definition of unemployed workers. From the seventies to the eighties, all four recipiency rates declined sharply (Exhibit 1). The largest reductions are for the All Programs Rate and the All Programs Job Loser Rate. These rates declined by more than the Standard Rate because of the large cutbacks in the extended benefit programs that were implemented in the early eighties. From the eighties to the nineties, the Standard Rate increased slightly. There is not, however, a large change in either the All Programs or All Programs Job Loser rates over this period, due to the small number of extended claimants. If, however, the analysis were extended to periods following March 1992, there would be an increase in both of these rates because of the extension of benefits through the Emergency Unemployment Compensation (EU3) program. 2 The Standard Short-term Rate follows the same general pattern as the Standard Rate, though there is a much sharper drop-off in the Standard Short-term rate in the early eighties that corresponds with fewer short term job losers receiving regular program benefits.

Wednesday, October 23, 2019

I’M Not Her by Janet Gurtler Isu with Summary

I’m Not Her by Janet Gurtler Written by Jordyn Leavens The novel that I am reading is â€Å"I’m Not Her† by Janet Gurtler. It is about the struggles a young girl, named Tess, goes through when she finds out that her sister, Kristina, was diagnosed with cancer. Tess has always been looking up to her older sister, because her sister was always the center of the crowd, sporty, beautiful one and Tess was always the smart, un-popular one. It was always hard on Tess, so when her sister was diagnosed with cancer, she felt as if she could finally be known.All of Kristina’s friends started befriending Tess, now that her sister wasn’t at school. Although Tess loved the popularity, she did have a lot of trouble too. Not a lot of people were asking how Tess was doing about the whole cancer situation but there was one person who was always there for her. His name was Clark. After talking days upon days with him, Tess began to want to be more then friends with hi m. But Tess also knew that she had to be there for her sister and didn’t have time to have a serious love life at that point in time.Then Tess met a boy from school named Jeremy. Jeremy has a little crush on Kristina, but is also now good friends with Tess. Tess was wondering why he would always talk about Kristina, and then he finally informed her that he always hangs out with her at the hospital when he is visiting his mother, who also has cancer. My initial response once I read the first third of the book was that I am really going to enjoy it. I thought that because it has a very strong plot which makes it very interesting for me to read.I like how the author gets right to the point, but still makes you think about what is going on in the novel. Another thing that made me think it will be a good book is that it is very realistic so I can relate to what’s happening and really understand the things going on. A few things that I really like about this novel that I rea lly like are that the author writes with a lot of meaning and it makes you feel what’s going on much better, the characters have a lot of personality and there is a lot happening.One thing I didn’t really like about the book is that you kind of get lost with all of the friends of Kristina’s talking to Tess all of the time. Another thing I dislike about the novel is that it’s lacing literary devices, which makes it a bit easy to read. Although some parts of this novel are a bit confusing or aren’t the best, it is still a really good book so far and I’m really enjoying it. I really like all of the characters in this book because they are all so different and they all have their own personality.If I had to choose one that I liked best, I would have to say Kristina is my favourite. I like her the best because she is a very strong teenager. It must be very difficult to go through everything she’s been through, and I’m sure there is still a lot more things that she will end up going through. If she didn’t have Tess as a sister, there to support and comfort her, I’m sure she would be in a very different place, because her parents aren’t being too supportive, knowing that she is having a hard time with this all.In conclusion, I think this is a really well written book and I am super excited to continue reading the rest of the book. It never gets boring and always has something going on. I feel like I can’t put the book down when I’m reading because at the end of almost every chapter, the author would leave you with a cliffhanger, which I like a lot. So far, this is a great book and I would recommend to anyone to read it.