Wave-Particle Duality Definition

Wave-particle duality describes the properties of photons and subatomic particles to exhibit properties of both waves and particles. Wave-particle duality is an important part of quantum mechanics  as it offers a way to explain why concepts of wave and particle, which work in classical mechanics, dont cover the behavior of quantum objects. The dual nature of light gained acceptance after 1905, when Albert Einstein described light in terms of photons, which exhibited properties of particles, and then presented his famous paper on special relativity, in which light acted as a field of waves. Particles That Exhibit Wave-Particle Duality Wave-particle duality has been demonstrated for photons (light), elementary particles, atoms, and molecules. However, the wave properties of larger particles, such as molecules, have extremely short wavelengths and are difficult to detect and measure. Classical mechanics is generally sufficient for describing the behavior of macroscopic entities. Evidence for Wave-Particle Duality Numerous experiments have validated wave-particle duality, but there are a few specific early experiments that ended the debate about whether light consists of either waves or particles: Photoelectric Effect - Light Behaves as Particles The photoelectric effect is the phenomenon where metals emit electrons when exposed to light. The behavior of the photoelectrons could not be explained by classical electromagnetic theory. Heinrich Hertz noted that shining ultraviolet light on electrodes enhanced their ability to make electric sparks (1887). Einstein (1905) explained the photoelectric effect as resulting from light carried in discrete quantized packets. Robert Millikans experiment (1921) confirmed Einsteins description and led to Einstein winning the Nobel Prize in 1921 for his discovery of the law of the photoelectric effect and Millikan winning the Nobel Prize in 1923 for his work on the elementary charge of electricity and on the photoelectric effect. Davisson-Germer Experiment - Light Behaves as Waves The Davisson-Germer experiment confirmed the deBroglie hypothesis and served as a foundation for the formulation of quantum mechanics. The experiment essentially applied the Bragg law of diffraction to particles. The experimental vacuum apparatus measured the electron energies scattered from the surface of a heated wire filament and allowed to strike a nickel metal surface. The electron beam could be rotated to measure the effect of changing the angle on the scattered electrons. The researchers found that the intensity of the scattered beam peaked at certain angles. This indicated wave behavior and could be explained by applying the Bragg law to the nickel crystal lattice spacing. Thomas Youngs Double-Slit Experiment Youngs double slit experiment can be explained using wave-particle duality. Emitted light moves away from its source as an electromagnetic wave. Upon encountering a slit, the wave passes through the slit and divides into two wavefronts, which overlap. At the moment of impact onto the screen, the wave field collapses into a single point and becomes a photon.

Emily Dickinson s Life And Work - 962 Words

Emily Dickinson is considered to be one of the best and most original American poets. Her writing style and views on themes such as religion, love, and death are what make her stand out from other poets of the nineteenth century. Dickinson was a recluse; she spent most of her time within the confines of her home and avoided most other people (Brand). Because of this hermit-like behavior it is questioned where the inspiration for her poems came from. Although Dickinson had an uneventful social life, her mind was an exciting place, her imagination always at work (â€Å"Emily Dickinson’s Life and Work† 804). One of the most interesting themes Dickinson covers is death. She has an interesting relationship with death in her poetry. It is thought the death of her childhood friend, Sophia Holland, could have motivated Dickinson to write about death (â€Å"Emily Dickinson’s Life and Work† 803). Something that is unique about her poems on death is the point of view . Like in many of her other works, the speaker speaks in first person making what is being said feel more personal. When reading the poem the reader may feel like they are truly a part of what is going on and that makes it easier to imagine and relate to what is being expressed. In her poems she makes clear that she believes death is inevitable and is not something to be feared itself. According to her it is the oblivion afterwards that is to be feared, not death itself (â€Å"Death in the Poems of Emily Dickinson†). In â€Å"Because IShow MoreRelatedEmily Dickinson s I Taste A Liquor Never Brewed 1237 Words   |  5 PagesDraft: Emily Dickinson Emily Dickinson s works made her a woman ahead of her time, through her unwillingness to conform to the norms of society. Emily Dickinson was a poet from the 1850s. Many people tried to urge Dickinson to publish, but she then had to start worrying about her punctuation in her works. Her works held great power and they reached maturity quite quickly as she talks about how dense the natural world is in one of her poems â€Å"I taste a liquor never brewed†. Emily Dickinson was bornRead MoreThe Author That I Decided To Discuss The Literary Significance1232 Words   |  5 Pagesauthor that I decided to discuss the literary significance is Emily Dickinson. Dickinson was born, raised, and in Amherst, Massachusetts in December 10, 180 and died May 15, 1886 in the same state. Her father was Edward Dickinson, and her mother was also named Emily, Emily Norcross Dickinson. Emily Dickinson went to Mount Holyoke College, a small private school in South Hadley, Massachusetts. She’s known as one of the best American Poet. Emily s poem were frequently perceived by a wide range of writersRead MoreEmily Dickinson s Amazing Gifts As A Poet1178 Words   |  5 Pagesher. Emily Dickinson became recognized as one of the greatest female poet in American literature after her death in 1886. Emily Dickinson personal life experiences are reflected in her poetry writings. Her poetry shows the difficulties and needs of human relationship with writing that is moving and captivating. Emily Dickinson was born on December 10, 1830 in Amherst Massachusetts. She was well educated and attended the Amherst Academy. Her father was Edward Dickinson, he wasRead MoreMuch Madness Is Divinest Sense963 Words   |  4 PagesMuch Madness is divinest Sense Emily Dickinson is was a talented and unique poet; some might even call her strange or mad. This poem, in a way, represents her life that was far from what was considered normal. In the 1800s, a certain type of behavior was expected from people, especially from women. Women cooked, cleaned, and nurtured their families, while under the control of men. It was not looked upon well when women strayed from this status quo. Emily Dickinson did, and this poem demonstratesRead MoreEmily Dickinson : The Point When A Reader1749 Words   |  7 PagesHorieh Introduction to Literature Professor Knoernschild November 27, 2015 Emily Dickinson At the point when a reader hears the name Emily Dickinson, they consider a female who composed verse that has been surely understood for a considerable length of time and years. Much to their dismay that Emily Dickinson established American Literature, and began an entire unrest of verse. The procedure Dickinson used to keep in touch with her verse was at no other time seen and was the foundationRead MoreThe Last Night She Lived By Emily Dickinson1129 Words   |  5 PagesDavid Kiernan ENG 2012 Professor Walter 12 April 2015 Emily Dickinson Essay Emily Dickinson is renowned for her implications and rhetorical writing style that leaves readers in a state of enlightenment that is required to unveil the true meaning behind her poems. Regardless, less than ten of her eighteen-hundred poems were ever published due to her radical viewpoints and unconventional writing style. Of the few that were ever published, â€Å"The last night she lived† is among them. The poem is a trueRead MoreEssay on Emily Dickinson: Life and Literature1068 Words   |  5 Pages The life led by Emily Dickinson was one secluded from the outside world, but full of color and light within. During her time she was not well known, but as time progressed after her death more and more people took her works into consideration and many of them were published. Dickinson’s life was interesting in its self, but the life her poems held, changed American Literature. Emily Dickinson led a unique life that emotionally attached her to her writing and the peo ple who would read them long afterRead MoreEmily Dickinson1547 Words   |  7 Pages Brionna Gardenhire 9th Grade Honors Literature Mr. Phillip Grabowskii November 13, 2012 Emily Dickinson was born on December 10, 1830, in Amherst, Massachusetts. She was the oldest daughter of Edward Dickinson, a successful lawyer, member of Congress, and for many years treasurer of Amherst College, and of Emily Norcross Dickinson, a timid woman. Lavinia, Dickinson’s sister, described Emily as perfectly well amp; contented—She is a very good child amp; but little trouble. (Sewall 324)Read More`` It Was Not Death, For I Stood Up, By Emily Dickinson1728 Words   |  7 Pageswith a specific focus on Emily Dickinson’s link of mental illness to reclusiveness within her works titled â€Å"It was not Death, for I stood up,† â€Å"After great pain, a Formal feeling comes,† â€Å"I dwell in Possibility,† â€Å"My Life had stood—a Loaded Gun,† and â€Å"Tell all the Truth but tell it slant†.† Emily Dickinson is one of the most influential female poets of the 19th century. Born in Amherst, Massachusetts in 1830, Dickinson began her life as a normal child. Growing up, Dickinson had more opportunitiesRead MoreEmily Dickinson s Influences On Writing889 Words   |  4 PagesMadison Lollar Joshua Scott ENGL-2120-C61 May 2, 2015 Emily Dickinson’s Influences in Writing: 　　　　On December 10, 1830, Emily Dickinson was born in her hometown where she would spend the rest of her life, Amherst, Massachusetts. Dickinson enjoyed writing and often credited herself on her wittiness and intelligence. She was a poet who made current events and situations the subjects of many of her writings. Although she wrote throughout her life, some of the poems were not found until after her death

Taxonomy of Conflictsin Network Security †MyAssignmenthelp.com

Question: Discuss about the Taxonomy of Conflictsin Network Security Policies. Answer: Introduction To secure data one has to prevent it from potential threat, destruction that is intentional, mistakes that are accidental and unwanted corruption. One of the safest ways to secure data is to encrypt it (magazine, 2017). However other steps to secure data exist such as understanding of threats, having good defense laws and monitoring of activities continuously. Some of the most common computers are windows computers and they are prone to insecurities which lead to data losses. Most of the computer malwares occur when one is logged onto the internet as well as lack of proper passwords for ensuring securities (Mahoney and Chan, pg 381). Computer insecurity has led to closure of many businesses including laying off of workers that may have been in office when an insecurity issue occurs. Its therefore important to ensure network and other computer securities to avoid such problems. Ensuring windows network security When two or more computers or any network devices are connected to the internet they form a network. Since the computer is often connected to some network that could be local or wide area network its important to emphasize the physical security of such computers (Bartal et al., p. 21). There needs to be control in the access to data and also protecting data from any unauthorized access from being sent into your computer. When using a windows computer in your daily activities some steps need to be followed to secure your data especially when connecting to the internet. For the physical security of a computer to be achieved one should have the computer containing the data secured in a locked room the computer can also be secured on a table having a cable and lock (Yuan et al., p. 200). However for such a security plan laptops cannot be secured in such a manner only the external hard drive option is good for securing your laptop. Securing of data on a windows computer can be achieved in different ways like the access to the sensitive data should be restricted to authorized personnel only and one can use all the security features available through the operating system. For example use of login details by generating a password and have it secured using NTFS permissions available on windows computers. All the passwords created should be strong enough so that they are not easily predicted (Mayer, Wool, and Ziskind, p. 184). Password complexity can be achieved using local security policy or even administrative tools. Strong passwords can be verified using L0PHTCRACK system present in the computers. Screen savers are protected using passwords and the screen saver should be set in such a way that its inactivated between 10-15 minutes. When using a password that has less than 16 characters then the password screen saver should be set to activate for atleast after every 3 minutes of the mouse inactivity. Its therefore recommended for one to lock the screen once they are not using the computer or if they walk out of office because the screen saver in most cases does not activate for 3-15 minutes (magazine, 2017). Whole disk encryption should be enabled such encryptions include windows encrypting file system to protect directories that contain secure data. The computer user is advised to have their analysis software configured to some work files that are point temporary and be encrypted to the directory that deals with sensitive data. A secure erasure program should be installed and be run periodically its mostly run on a monthly basis once the removal of secure data is complete. For instance the use of eraser has been very effective (Bartal et al., p. 21). This ensures no sensitive data lands in the hands of unauthorized personnel. No data should be copied and moved out of the secured directory whatsoever (CSR, 2017). Windows firewall has provided advanced security and the owner of a windows computer can edit rules, add or remove anything concerned with advanced security in the network security section. Windows firewall has a combination of host firewall and internet protocol security. It ope rates on computers running server 2008 and 2008 R2.It offers local protection from attacks from other networks which are likely to pass via the perimeter network or may also originate from ones place of work unknowingly (Lippman et al., p. 581). This firewall secures computer to computer connections in which it allows the owner of the computer to get authentication and protection of data for communication. This firewall inspects and also filters packets used for IP version 4 and version 6 traffic. It blocks incoming traffic by default not unless its responding to the host request of itsallowed via creation of a firewall rule. Traffic can be allowed by the computer user by specifying an application number, service name, port number or by use of other criteria through configuring your windows firewall with security that is advanced (Liuand Gouda, p. 198). However incorrect configuration of windows firewall may impair the functioning of some services by the blocking of inbound traffic to some services on the computer. Having a combination of both physical and logical systems of security; this is achieved by separating of cabinets in offices in relation to the security level needed. Passwords, encryptions and authetification should be given much protection so as to be accessed by specific authorised individuals only (Adiseshu, Suri and Parulkar, p. 1207). The networks get secured with an antispyware, programs for virus detection and firewalls when the security is logical. The first line of defense is the implementation of systems for storage basing on unit number markings that are logical. The change of key codes, door locks, security and access control entails the components of physical security. The default settings should also be changed often especially at the stages of installation and the access to tools of management should be restricted to those that need them only (Yuan et al., p. 200). The culture of being transparent with data security has been adapted by many companies and this makes the users to avoid evil thoughts of wanting to tamper with data (Al-Shaer and Hamed, p. 138). When it comes to wireless security companies have enabled some WPA2 security which has been encryptioned with AES as well as SSID for privacy. In this case its ensured that all the wireless devices are getting secure connection via WPA security that comes with TKIP encryption and therefore the risks of cracking are less. All the cabling that are network enabled are often protected from easy access by the public and can only be accessed by authorized people. This is a mandate of all the industries. Its advisable to disable all the open Ethernets within the building so as to avoid unnecessary and unauthorized usage (Lippman et al., p. 171). There is the need to have track of the staffs mobile devices to cater for any loss of sensitive data that can land into the hands of malicious people. This also protects unauthorized people from accessing the companys wifi via such stolen devices which are mostly used for log in by the staff. Connection of several computers with no loss of relevant information Microsoft baseline security analyzer which is a vulnerability scanning tool can be used. This one checks the networks security status. These tools check things like un-patched ports that are open and softwares (Ismaeland Zainab, p. 276). Maintaining and installing softwares for security purposes; this include the use of the antivirus suite of windows defender for windows 8 computers and use of Microsoft security essentials for those using windows 7 users. Use of personal software inspector; it notifies users when their current soft wares are expiring. One should use the principle that is of the least of all i.e. never using administrator rights to sign into computers (Warrender, Forrest and Pearlmutter, p. 138). This is because such sign ins are at risk of exploitations and thus exposed to many risks. Dangers of such log ins include deletion of files, reformatting of hard drives and the creation of accounts that are new without your knowledge. Current updates should be maintained and soft wares as well; its achieved by adapting systems that are secure and well supported. A personal software inspector called Secunia should be installed because it gives alerts on software updates and applications that are expiring (Debar, Becker and Siboni, p. 248). Use of usernames and passwords that are strong should be encouraged because these cannot be easily predicted by malicious people. These passwords should be changed occasionally for the sake of securing the stored information. In most cases people would want to use wireless internet connections to access the web especially when outside their normal network providers (Mahoney and Chan, p. 228). However these wireless connections may make one to run into serious problems with their computers if the network provider uses security settings that are different from the operating system of your computer. Its known that all routers do not provide similar security settings options. Also some of the cards used for network and the operating system combinations are capable of making use of the current and most secure features of security (Mukherjee, Heberlein and Levitt, p. 39). For example there are Atheros cards network which are installed on the laptops of windows vista but they cannot use security types of WPA2. Also the router of most local networks could have configurations of using lower security settings compared to most of the laptops. Ensuring internet use security on windows computer If a windows 7 user needs to connect to some network via security settings that are different they need to have a change of their current settings manually using operating system prior to opting to access any wireless websites or even before opening their emails (Mahoney and Chan, p. 381). The wireless security settings can be accessed by making navigation to control panel site present in the start area. Once in the control panel area look for the icon of the globe that is between two monitors. Click onto the place labeled network and internet so as to access the key networking options for windows 7. Click on the heading written network and sharing at the top of the windows just above the home area and then click on internet options (Denning, p. 228). Once you locate the network and sharing centre option you will be able to access the networks that you are presently connected on and this is where changing settings options are provided as well as troubleshooting problems with connection. Click on the manage wireless networks and bring up all the available wireless networks in your range and then locate the specific networks you want to connect with. Once you right click on the network provider youve selected it will bring out the properties where youllaccess all the security settings necessary. Here is where you choose the security type you want to use and they may include WPA2 Personal or WEP (Neumann and Porras, p. 76). Here you key in the security password for the selected network and then click ok. All these steps are to ensure your data and computer are secure while you access the wireless network. Its relevant to follow these steps since most of the computer insecurities are common while one is accessing the internet. Computers can be effective if used well. One should show much keenness on the essentials of security when using computers to ensure sensitive information is protected as well as the loss of data is not witnessed. This is achieved through installation of security softwares and updating them always. A lot of keenness should also be placed on physical security and logistics of the data as well as all the information stored on the computer. Computers have been of great importance when it comes to sustaining business in this global market. A lot can be done and shared using computers and especially windows computers which are the most common ones. However a lot can as well be lost in terms of poor security settings on our computers. Many businesses have close down because of loss of sensitive data and even leakage of sensitive passwords. Banks have lost billions of money because of computer insecurities. Its therefore important for all windows users to put in mind all the security require ments to ensure data protection and proper running of businesses. Recommendations Always back up and file your documents with your email. Such these practices ensure that data is protected once an operating system cracks down, or in case of virus attacks and failure of hardwares. Records of people with access to data that is fixed and removable as well as storage media should be kept. The virtual private networks, IPSec protocols and encryption should be adapted for improved security especially when the data is in transmission. Data protection and security models should be implemented; these include a number of defenses that tackle some threats. These defenses have the ability to protect data especially if one of them is not working. In situations where only one person is using the computer use of external hard drives in securing your computer should be put into consideration. References Denning D.E (1997). An intrusion-detection model. IEEE Trans Software Eng;13(2):22232. Neumann PG, Porras PA (1999). Experience with EMERALD to date. In First USENIX workshop on intrusion detection and network monitoring, Santa Clara, CA. p. 7380. Debar H, Becker M, Siboni, D (1992). A neural network component for an intrusion detection systems. In Proceedings of the 1992 IEEE symposium on security and privacy, Oakland, CA, p. 24050. Warrender C, Forrest S, Pearlmutter B (1999). Detecting intrusions using systems call: alternative data models. In Proceedings of the 25th IEEE symposium on security and privacy, Oakland, CA; 912. p. 13345. Mahoney MV, Chan PK (2000). Learning nonstationary models of normal network traffic for detecting novel attacks. In Proceedings of eighth international conference on knowledge discovery and data mining, p. 37685. Mukherjee B, Heberlein LT, Levitt KN (1994). Network intrusion detection. IEEE Network 8(3):2641. Mahoney MV, Chan PK (2003). An Analysis of the 1999 DARPA/Lincoln laboratory evaluation data for network anomaly detection. Recent advances in intrusion detection. In Sixth international symposium, Raid 2003, Pittsburgh, PA, USA; 810,. p. 22039. CSR, NIST, (2017) Computer Security Resource Center. Retrieved from https://csrc.nist.gov/publications. Magazine, (2017). Information security online magazine. Retrieved from https://www.scmagazine.com Mayer, A. Wool, and E. Ziskind (2000). Fang: A FirewallAnalysis Engine, Proc. IEEE Symp. Securityand Privacy (SP 2000), IEEE Press, pp. 177-187. Bartal, Y., Mayer, A., Nissim, K., and Wool, A. Firmato (1999). A novel firewall management toolkit. In IEEE Symposium on Security and Privacy, pp. 1731, Oakland, California. Liu, A. X. and Gouda, M. G (2005). Complete RedundancyDetection in Firewalls. In 19th Annual IFIP Conferenceon Data and Applications Security (DBSec-05), pp. 196209, Storrs, Connecticut. Yuan, L., Mai, J., Su, Z., Chen, H., Chuah, C., and Mohapatra, P. Fireman (2006).a toolkit for Firewall Modelingand ANalysis. In IEEE Symposium on Security and Privacy, pp. 199213, Oakland, California. Adiseshu, H., Suri, S., and Parulkar, G (2000). Detecting andResolving Packet Filter Conflicts. In 19th Annual JointConference of the IEEE Computer and CommunicationsSocieties, Vol. 3, pp. 12031212. Al-Shaer, E. S. and Hamed, H. H (2006). Taxonomy of Conflictsin Network Security Policies. In IEEE CommunicationsMagazine, 44(3):134141. Lippman R, Haines JW, Fried DJ, Korba J, Das K (2000). The 1999 DARPA off-line intrusion detection evaluation. Comput Networks 34(4):57995. Ismael, R. and Zainab, A.N. (2010). A frame work for assessing information systems security practices in libraries. Kuala Lumpur: LISU,FCSIT pp 273-287. Lippman R, Haines JW, Fried DJ, Korba J, Das K (2000). Analysis and results of the 1999 DARPA off-line intrusion detection evaluation. In Proceedings of the third international workshop on recent advances in intrusion detection, Toulouse, France, p. 16282.

Yes, I Do Believe Demonic Possession Is Possible For Several Reasons.

Yes, I do believe demonic possession is possible for several reasons. First, God could have allowed for and created demonic possessions as a way of testing our faith. People possessed by the devil or demons go against God and his teachings, so doing this to people could be a way of showing how much they actually love God and want to follow him. If people are able to overcome the possession, it will show how devoted they are to God. Second, according to the Bible, demons and the devil exist, so I feel it is possible for them to overcome people. The devil is known for tempting people, so it is possible for him to possess someone as a means of temptation. Satan supposedly has powers near to the powers of God's, so Satan too may have the power to possess someone's body. Third, as of lately, there is medical and scientific evidence that supports demonic possession. There have been several instances in which men had committed crimes, but have stated that they don't remember doing that, and don't feel that they had control over themselves when they did it. It is still debatable though as to whether or not these people were making this up and lying, or whether it has some validity to it. Such, "sleepwalking" murders are being tried now, and it is being debated whether or not these people were conscious or not and had control over their bodies. Objections to demonic possession could be that God would never allow Satan take control of a person. Why would He allow Satan to take control of one of His followers, and to try to make his powers parallel to Gods by going over His head and taking control over one of His people? This could be proven wrong in saying that God allowed for this because He wanted to test people faith and devotion to Him. In closing, I feel that it is possible for demonic possessions to take place because it says that they occur in the Bible and also that God would allow it as a means of testing our faith and devotion to Him. They aren't always meant to be a direct offense against God.