#14 Suppose we fit the simple linear regression model Y = beta_0 + .pdf

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#14 Suppose we fit the simple linear regression model Y = beta_0 + beta_1 x + epsilon and get the estimated regression function Y = b_0 + b_1 x What population characteristic of Y does Y actually estimate? What population characteristic of Y does estimate? Solution y-hat calculates the mean of y for a given value of x.

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What are the security requirements and challenges of Grid and Cloud Computing? Solution security issues: A. Policies: 1) Inside Threats: good supervision should be done for having trusted employees . 2) Access Control:Digital signature can be implemented for access control. 3) System Portability: The problem of vendor lock-in should be handled . B. Software Security: 1) Virtualization technology: up to date version of virtualization product should be installed for the security reasons. 2) Host Operating System:should be up to date and secure from hackers 3) Guest Operating System: should be up to date and secure from hackers 4) Data Encryption:should be done on all the data for its safety. C)Physical security: 1) Backup:Either a backup plan should be provided automatically for each customer, or they can use the plans provided elsewhere in the cloud. 2) Server Location:It should be at appropriate place. Room should have adequate space and isolated. A Cooling System and Fire Suppression System should be installed there. 3) Firewall: Cloud Computing service providers should provide a complete firewall solution to their clients. Challenges: A)No clear standard:Grid computing uses various standards, but all grids are not use same standards. Example all grid operating system such as Linux, Apache,and My SQL are using WSRF, WWW, SOAP and XML standards. B)Distributed computing Vs Grid computing: Grid computing involves dynamic virtual organisation, resource sharing and peer to peer computing. The Grid intends to make access to computing power, scientific data repositories and experimental facilities as easy as the Web makes access to information. Same all facilities provide the grid computing. So it is a challenge for grid computing. C)Lack of grid enabled software: The software, which are enabled the grid computing are less, It has limited software on Grid. Much software has not copyright issues and source code of licence. It is need for more company developing grid-enabled version, need more developers on grid development and need to develop open source software. D)Sharing Resources between Various types of Services:Grid used for sharing resource from various sites and grid hosts. It handles a massive amount of data as a grid platform. A lot of sites and multiple servers gathered there it is so complex infrastructure. It provides difficulty for hardware resource sharing within virtual organisation..

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Using the man command, determine which ls command option (flag) will.pdf

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The basic economic problem is that we only have so many resources, b.pdf

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The organization of interrupted genes is often conserved between species. What does this mean and what is an example of this conservation (diagram/explain)? Solution First we have know about interrupted genes is often conserved between species,the intricate cellular machinery that converts genetic information into functional protein and RNA molecules and the many ways in which gene expression is regulated by the cell,we discuss some of the ways that genes and genomes have evolved over time to produce the vast diversity of modern- day life forms on our planet uncovering an astonishing wealth of information about the family relationships among organisms and evolutionary mechanisms,but the great revelation of the past 20 years has been the discovery that the actual nucleotide sequences of many genes are sufficiently well conserved that homologous genes. The recognition of sequence homology has become a major tool for inferring gene and protein function thus it is often possible to predict the function of a gene in humans for which no biochemical or genetic information is available simply by comparing its sequence to that of an intensively studied gene in another organism. Gene sequences are often far more tightly conserved than is overall genome structure as discussed features of genome organization such as genome size,cells do not have specialized mechanisms for creating changes in the structures of their genomes evolution depends instead on accidents and mistakes. Introns can be detected by the presence of additional regions when genes are compared with their RNA products by restriction mapping or electron microscopy The positions of introns are usually conserved when homologous genes are compared between different organisms but the lengths of the corresponding introns may vary greatly..

The organization of interrupted genes is often conserved between spe.pdf

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The daisy has which inflorescence morphology type? campanulte tubular cruciform rotate ligulate The hibiscus has which inflorescence type? campanulte tubular cruciform rotate ligulate The ixora has which inflorescence type? campanulte tubular cruciform rotate ligulate Solution ANSWER: 16)THE DAISY HAS WHICH INFLORESCENCE MORPHOLOGY TYPE:5)LIGULATE. 17)THE HIBISCUS WHICH INFLORESCENCE TYPE:2)TUBULAR. 18)THE IXORA HAS WHICH INFLORESCENC E TYPE:2)TUBULAR..

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Suppose that CaO is present as an impurity to Li2O. The Ca2+ ion sub.pdf

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Resistance A primitive adaptive immune Zone of inhibition The ability of a microbe to grow Bacterial lawn Bacteriophage or Enrichment Dense, solid growth across the surface of a petri dish. A lawn of bacteria is prepared and filter disks containing antimicrobial agents are applied A molecule that specifically kills or inhibits bacterial cells Mixture of a bacterial host culture, viral sample, and bacterial media A primitive adaptive immune response in bacteria; that is, bacteria can \"learn\" to become resistant General term to describe a molecule or substance that kills or inhibits microbes The ability of a microbe to grow in the presence of an otherwise toxic molecule, such as an antimic Dramatic change in population-level genetics, in response to a selective pressure A kind of virus that preferentially and exclusively infects bacterial cells A circular clearing within a lawn of growth; surrounding a disk or colony containing an antimicrobial Solution The basic principle of Enrichment is that of selection. Enrichment culture provides favourable growth conditions for the organism of intrest and unfavourable conditions for the competing organisms. This technique can be used in many ways. for example, if we want to culture a thermophile bacteria, incubate the sample at high temperature i.e., at above 55 degrees centigrade because at that temperature, only the thermophilic bacteria can grow while this temperature hampers the growth of other bacteria in the sample. Likewise, enrichment culture may also contains antimicrobial agents to which the selective organism is resistant hence the required organism\'s growth is facilitated hampering the growth of other organisms which are not resistant to the antimicrobial agent. Enrichment culture may also contains pesticides or N2 (used for selective growth of nitrogen fixing bacteria) depending upon the type of microorganism selected. Hence the Answer is a lawn of bacteria is prepared and filter discs containing antimicrobial agents are applied..

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Refer to my progress on this assignment below In this problem you will make it “more” object-oriented in the following ways: -You will change its name to SortedList -You will change the constructor that takes no arguments to be more traditional and initialize the member fields to dummy values. -You will add a constructor that takes in an initialized array and a size -You will add an insert function that adds a value to the list and maintains its sorted-ness -You will add a quicksort function check the below code. -You will make updates as necessary to the main function so that it still runs and tests your code. The code below seems to sort correctly but it skips over some items in the array and I am not sure what is happening. Please help! Thanks! import java.util.Scanner; class SortedList { private static int array[]; private static int n; public SortedList() { Scanner in = new Scanner(System.in); System.out.println(\"Enter number of elements\"); n = in.nextInt(); array = new int[n]; if(n == 0) { System.out.print(\"Since no arguments array set to: \"); } else { System.out.print(\"Creating array size \" + n + \": \"); } for(int i = 0; i < n; i++) { array[i] = 0; } //System.out.println(\"Enter \" + n + \" integers in ascending order\"); /*for (c = 0; c < n; c++) array[c] = in.nextInt();*/ for(int i = 0; i < n; i++) { System.out.print(array[i] + \" \"); } System.out.print(\"\ \"); } public SortedList(int a[], int size) { array = a; n = size; } public int binsearch(int search) { int first, last, middle; first = 0; last = n - 1; middle = (first + last)/2; while( first <= last ) { if ( array[middle] < search ) first = middle + 1; else if ( array[middle] == search ) { //System.out.println(search + \" found at location \" + (middle + 1) + \".\"); return middle+1;//+1 for the non-CS people who don\'t start counting at zero. } else last = middle - 1; middle = (first + last)/2; } return -1; //System.out.println(search + \" is not present in the list.\ \"); } public static int partition(int input[], int p, int r) { int pivot = input[r]; while(p < r) { while(input[p] < pivot) { p++; } while(input[r] > pivot) { r--; } if(input[p] == input[r]) { p++; } else if(p < r) { int tmp = input[p]; input[p] = input[r]; input[r] = tmp; } } return r; } public static void quicksort(int input[], int p, int r) { if(p < r) { int j = partition(input, p, r); quicksort(input, p, j-1); quicksort(input, j+1, r); } } public static void insert(int value, int cell) { array[cell] = value; quicksort(array, 0, n-1); } public static void main(String args[]) { int c; Scanner in = new Scanner(System.in); SortedList b = new SortedList(); System.out.println(\"Input numbers\"); for(int i = 0; i < n; i++) { c = in.nextInt(); in.nextLine(); insert(c, i); } in.close(); for(int j = 0; j < n; j++) { System.out.print(array[j] + \", \"); } } } Solution //the whole program that you wrote is correct except one line , when you call the quicksort everytime you insert a //value dont pass n pass the i.

Refer to my progress on this assignment belowIn this problem you w.pdf

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Q1) Show what part of SSL that protects against the following attacks :- a. Replay Attack: Earlier SSL handshake messages are replayed. b. Man-in-the-Middle Attack: An attacker interposes during key exchange, acting as the client to the server and as the server to the client. c. IP Spoofing: Uses forged IP addresses to fool a host into accepting bogus data. Q2) Describe the port forwarding operation. Using an example, describe the cases when it is very useful, and the cases when it is very dangerous. Solution The secure socket layer (SSL) is a computer networking protocol that manages server authentication, client authentication and encrypted communication between servers ant client . PROTACTION FROM REPLAY ATTACK- The SSL itself is protected againsts replay attack using Medium Access Control ( MAC ). By using MAC secret and the sequence number it ensures the communication integrity. ssl handshake protocol PROTECTION AGAINSTS MAN-IN-THE MIDDLE ATACK- SSL is based on public/ private key cryptography. This basically means that there is a key pair. The public key is used for encryption and secret key is used for decryption . A certificate is basically a public key with a label identifying the owner. So when your browser connects to an https server , the server will answer with its certificate. The browser checks if the certificate is valid- 1: The owner information needs to match the server name that the user requested. 2: The certificate needs to be signed by a trusted certification authority. if one of these condition is not met, the user is informed about the problem. PROTECTION AGAINSTS IP SPOOFING- An SSL certificate is specific to the particular domain for which it was created regardless of the IP address of the doimain. So if a malicious entity want to attempt to redirect trafiic for a certain website to their own malicious site through IP spoofing techniques. The fake site would not have a SSL certificate that was accurately registerd to the real website.This can be varified through a browser by viewing the certificate information and if the wrong address is shown, then the user will know that they are not on the site they think they are on.Secure Socket Layer Architecture ssl handshake protocolssl change cipher protocalssl alert protocolHTTPSSL record protocolTCPIP.

Q1) Show what part of SSL that protects against the following attack.pdf

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public class Patient extends Person { //=========== Properties =============== private int pId; private String address; //=========== Constructors ============= public Patient(){ super();//set 4 properties to blank pId = 0; address = \"\"; } public Patient(int p,String f,String l,String e, int pi,String a){ super(p,f,l,e);//pass 4 properties to super class pId = pi; address = a; } //=========== Behavior ================= public void setPId( int pi){pId = pi;} public int getPId(){ return pId;} public void setAddress(String a){address = a;} public String getAddress(){ return address;} public void display(){ super.display();//calls display in the super class to display 4 properties System.out.println(\"Patient Id = A\"+getPId()); System.out.println(\"Address = \"+getAddress()); }//end display() public static void main(String args[]){ //Object 1 Patient pa1; pa1 = new Patient();//calls no arg constructor pa1.setPId(900); pa1.setAddress(\"Marietta\"); pa1.display(); System.out.println(\"\ \");//space between to objects //Object 2 Patient pa2; pa2 = new Patient(1234,\"Jimmy\",\"Hawkins\",\"jhawkins@yahoo.com\",901,\"Acworth\"); //calls multi argument constructor pa2.display(); }//end main }//end class Let’s make it so that we can look up and find a Patient in the “Patients.txt” file. The Patients are organized by Patients Code. So we should be able to look in the File for Patient “A900”, and it should give us back all the data about that Patient, like, Patinet Id, etc. So we will need to read from the “Patients.txt” file and select the Patient Id “A900”. The File is delimited by “:”(colons). Take a look at the file. use FileInputStream and Buffered reader to read from the file. Code for testing ‘Select’ that goes in main: Patient p1 = new Patient(); p1.select(“A900”); p1.display(); Let’s also make it so that we can add a new Patient to the “Patients.txt” file.use PrintStream and Buffered writer to write to the file. We should be able to append a new line to the “Patients.txt” file with all the data for a new Patient, like PatientId,etc. Code for testing ‘Insert’ that goes in main: Patient p1 = new Patient(); p1.insert(“A900\",\"1234\",\"Jimmy:Hawkins\",\"Marietta\",\"jhawk@yahoo.com\",\"Cigna\"); //now go look in file to see if new line was added Solution import java.util.*; public class Patient { private int patientId; private String patientName; private String patientAddress; private String patientPhone; private Date patientDOB; public Patient(int patientId, String patientName, String patientAddress, String patientPhone, Date patientDOB) { // initialise instance variables this.patientId = patientId; this.patientName = patientName; this.patientAddress = patientAddress; this.patientPhone = patientPhone; this.patientDOB = patientDOB; } public void setId (int patientId) { this.patientId = patientId; } public void setName (String patientName){ this.patientName = patientName; } public void setAddress (String patientAddress){ this.patientAddress = patie.

public class Patient extends Person {=========== Properties ====.pdf

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8. A human T lymphocyte is infected by a HIV. The viral genome present inside the cell can be any of the following molecules except _________. A. ssDNA B. dsDNA C. ssRNA D. dsRNA Solution dsRNA Retroviruses have a single stranded RNA genome. Two copies of the sense strand of the genome are present with the viral particle. When they infect a T cell, the single stranded RNA is converted into dsDNA copy by the reverse transcriptase. Replication and transcription occur from this dsDNA intermediate, the provirus, whihc is integrated into the host cell genome by a viral integrase enzye,..

8. A human T lymphocyte is infected by a HIV. The viral genome prese.pdf

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please help with java questions JAVA CODE please check my code and help my questions CLASS ADDRESS public class Address{ private int streetNumber; private String streetName; private String city; private String state; private String country; // streetNumber // streetName // city // state // country public Address(int streetNumber, String streetName, String city, String state, String country) { this.streetNumber = streetNumber; this.streetName = streetName; this.city = city; this.state = state; this.country = country; } //return the streetNumber public int getStreetNumber() { return streetNumber; } // set street number public void setStreetNumber(int streetNumber) { this.streetNumber = streetNumber; } //return the streetName public String getStreetName() { return streetName; } // set street name public void setStreetName(String streetName) { this.streetName = streetName; } //return the city public String getCity() { return city; } //set the city public void setCity(String city) { this.city = city; } //return the state public String getState() { return state; } //the state to set public void setState(String state) { this.state = state; } // return the country public String getCountry() { return country; } // tset country public void setCountry(String country) { this.country = country; } // see java.lang.Object#toString() @Override public String toString() { return \" [streetNumber=\" + streetNumber + \", streetName=\" + streetName + \", city=\" + city + \", state=\" + state + \", country=\" + country + \"]\"; } } //////////////////////////////////////////////////////////////////////////////////////// CLASS PERSON public class Person extends Address { private String name; public Person (int streetNumber, String streetName, String city, String state, String country, String name) { super(streetNumber, streetName, city, state, country); this.name = name; } //retuurn name public String getName() { return name; } // set name public void setName(String name) { this.name = name; } //see java.lang.Object#toString() @Override public String toString() { return \"Person [name=\" + name + \", getStreetNumber()=\" + getStreetNumber() + \", getStreetName()=\" + getStreetName() + \", getCity()=\" + getCity() + \", getState()=\" + getState() + \", getCountry()=\" + getCountry() + \", toString()=\" + super.toString() + \", getClass()=\" + getClass() + \", hashCode()=\" + hashCode() + \"]\"; } } ///////////////////////////////////////////////////////////////// CLASS STUDENT import java.util.ArrayList; import java.util.List; public class Student extends Person { private String CIN; List courses; public Student(int streetNumber, String streetName, String city, String state, String country, String name, String CIN) { super(streetNumber, streetName, city, state, country, name); // Auto-generated constructor stub this.CIN = CIN; courses = new ArrayList(); } // reutrn cin public String getCIN() { return CIN; } // set cin public void setCIN(String cIN) { CIN = cIN; } pub.

please help with java questionsJAVA CODEplease check my code and.pdf

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Please make sure you write about Republic of Turkey otherwise please don\'t waste your and my time. Thanks!! Give an example of Republic of Turkey\'s regional economic integration and identify several potential benefits and several potential drawbacks of regional integration for Republic of Turkey. Elaborate on the protocols of the regional agreement. Solution Turkey’s need for foreign markets in 1980s led the country to strengthen regional cooperation with trading partners worldwide. Trade ties with Middle East received particular attention under Ozal. Business people also worked to improve trade ties with North America, East Asia, and Eastern Europe. Turkey’s increased attention to Middle Eastern markets boosted export of manufactured goods and construction services. The Ozal government made a formal application to EC membership. The European Commission issued an official opinion on the Turkish application but proposed that negotiations should not commence until 1993. Negotiations thereafter led the EU to vote for Turkey’s inclusion in the free trade area in 1995. The steady liberalization of the economy and integration begun by former President Ozal has continued without interruption. Some observers have postulated that admitting Turkey into EU would have some negative effects. One that the level of industrialization in Turkey lags behind the European countries, that the degree of budgetary transfers to lift Turkey to the levels of even the poorest European countries would place a huge burden on Europe’s resources, and that given entry would mean permitting labor mobility. They were also sceptical about human rights policies of Turkey. Despite several setbacks, Turkey has been designated a major emerging market by the main international financing centers. Most observers have instilled confidence in the economy because a large proportion of foreign investments has gone into industrialization. It has also been acknowledged the government’s ability to steer the economy toward the objective of making Turkey a major regional and international industrial power. *****.

Please make sure you write about Republic of Turkey otherwise please.pdf

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PAHTOLOGY! the rates of social anxiety disorder have increased over the past tow decased as partial result of increased use of internet and social media and decreased time people spend in face to face interaction with other. 1. true 2. false obsessive compulsive disorder can be diagnosed even if no compulsions are present 1. ture 2. false Solution True Social anxiety disorders have been on rise over the past few decades as partial result of increased use of internet and social media. People spend less time with their family and closed ones instead keep in touch with distant people on social media. This has caused anxiety distress and identity crisis in many people around the world.

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Ontologies are useful because they Systemize the many existing parameters, recognize the redundancies and vacancies Can lead to new and useful characterizations. Provide machine- recognizable categories of information Provide a vocabulary for communication between people in diverse fields who use and study surface metrology. All of the above None of the above Scientific laws Are derivable though an elaborate series of theorems and corollaries Can be proved through a series of carefully designed experiments Must be falsifiable Cannot be proved, only disproved a&b; only c&d; only a&d; only b&c; only What are the principles proposed for facilitating the ability discriminate with confidence on the basis of topography and to discover strong correlations with surface topographies? The measurement, analysis and characterization should be at the appropriate scales. The average roughness, skew and kurtosis are the most likely to correlate. The appropriate geometric property should be characterized. The height parameters contain all the required spatial information for correlation and discrimination The measurement should have the appropriate fidelity. All of the above None of the above a, c and e only What distinguishes scientific and experiential disciplines? Science is based on facts and is always right and cannot be falsifiable Scientific disciplines are more difficult to understand, teach and learn Experiential disciplines do not use the scientific process Experiential disciplines are based on standards and best practices and lack overarching principles, laws or axioms that can be applied to solving a wide variety of problems All of the above a and b only b and d only Solution 1. e) all of the above scientific laws are always proved 2. h) b and c only 3. 4. g) b and d only.

Ontologies are useful because they Systemize the many existing param.pdf

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Nervous system intro, neurons Branches of nervous system (generally speaking) Neuron abilities Neuron organization-know whats special about all these components and how they fit together. See details of AP and Synaptic communication Dendrites Soma Hillock Axon In MN: myelination and nodes of ranvier Terminals EPSPs and IPSPs Receptors, ions involved, change in membrane potential Compare properties with APs! How summed, initiate AP AP Know different phases, ion channels involved, direction of current, effect on Vm, and stimulus for onset/off of different phases AP continued and Start Synapse Be fluent in concepts and mechanisms regarding Self propagation Unidirectional movement All or nothing amplitude Saltatory conduction - why and benefits Refractory period Absolute - inactivation 2 semi- independently regulated parts of Na channel Relative -hyperpol Solution Please find the answer below. Lec 10: 1. The nervous system is divided into the central nervous system and peripheral nervous system. 2. The basic function of a neuron is to receive the information and send a signal to other neurons, muscles, or glands. First, a neuron receives information from the external environment or from other neurons. Then, the neuron integrates, or processes the information from all of its inputs and determines whether or not to send an output signal. 3. The dendrites and axon are thin cytoplasmic extensions of the neuron. The dendrites, which branch out in treelike fashion from the cell body, are specialized to receive signals and transmit them toward the cell body. The single long axon carries signals away from the cell body. The cell body (soma) is the enlarged portion of a neuron that most closely resembles other cells. Nodes of Ranvier are a gap in the myelin sheath of a nerve, between adjacent Schwann cells. 4. Ion channels and direction: As an action potential travels down the axon, there is a change in polarity across the membrane. The Na+ and K+ gated ion channels open and close as the membrane reaches the threshold potential, in response to a signal from another neuron. At the beginning of the action potential, the Na+ channels open and Na+ moves into the axon, causing depolarization. Repolarization occurs when the K+ channels open and K+ moves out of the axon. This creates a change in polarity between the outside of the cell and the inside. The impulse travels down the axon in one direction only, to the axon terminal where it signals other neurons..

Nervous system intro, neurons Branches of nervous system (generally .pdf

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Mr. Rossi, a fisherman in his late sixties, comes to the clinic to complain of small ulcers on both forearms as well as on his face and ears. Although he has had them for several years, he has not had any other problems. What is the likely diagnosis, and what is the likely cause? Solution What is the likely diagnosis, and what is the likely cause? The most likely diagnosis for Mr. Rossi, a fisherman is basal cell carcinoma------answer Because it causes ulcers . It is slow to metastasize and spread to other areas, cause : several years of exposure to sunlight may be caused his cancer..

Mr. Rossi, a fisherman in his late sixties, comes to the clinic to c.pdf

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Jim produces and sells $1100 worth of flowers. Jim uses no intermedi.pdf

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How will you choose to contribute to the public good over not contributing, and what factors must be considered. Solution Public goods are goods that everyone (contributors and non-contributors alike) can enjoy, once they are provided. Casual observations in economic system highlights that sometimes people choose to contribute to the public good over not contributing, even when we recognize the pull to free ride on the contributions of others. This contribution can be in the following forms: effort in work teams, provision of tangible or intangible public goods, the use of natural resources (the tragedy of the commons), contributions to charities, tax honesty, buyer-seller relationships, employer-employee relationships. The explanatory factors which motivates people to contribute may be efficient coercion, selective incentives, institutional structure, government trustworthiness, social norms, social capital, ethical reciprocity, and dispositions.

How will you choose to contribute to the public good over not contri.pdf

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