Bob wants to store a piece of data DDD on the blockchain, ensuring its integrity. To do so, he generates a hash H(D)H(D), which is the cryptographic hash of the data DD. The hash function HH satisfies the following properties: Preimage Resistance: Given a hash hh, it is computationally infeasible to find DD such that H(D)=hH(D) = h. Collision Resistance: It is computationally infeasible to find two different data sets D1≠D2D_1 \neq D_2​ such that H(D1)=H(D2)H(D_1) = H(D_2). Now, consider that Bob stores (D,H(D))(D, H(D)) on the blockchain, and later, Alice retrieves this data. Alice wants to verify the integrity of DD. The integrity check is given by: Integrity Check =True if H(D)==H(D′)Where D′D’ is the retrieved data and H(D′)H(D’) is the hash of the retrieved data. What must Alice check to ensure the integrity of the data?

You are running a program to calculate an approximation of an integral using multiple threads. The program uses a mutex (i.e. #pragma omp critical) to protect access to a shared variable (sum) where each thread accumulates partial results. You observe the following behavior when increasing the number of threads: Performance improves significantly as the number of threads increases, up to the number of available CPU cores. However, beyond the number of available CPU cores, performance remains roughly constant, even as more threads are added. Explain why the performance of the program plateaus when the number of threads exceeds the number of CPU cores. Describe how the use of mutexes impacts thread performance in this scenario. Suggest one optimization that could reduce the performance impact of using a mutex in this program.

A disheveled, severely depressed patient with psychomotor retardation has not showered for several days. The nurse should:

Which assessment findings are most concerning for the client being treated with lithium?

During a manic episode, a patient with bipolar disorder 1 goes to the dining room and begins to throw food and dishes.  The patient is hyperactive, restless, and disorganized and verbal intervention is ineffective. The patient’s behavior poses a substantial risk of harm to others. Staff escorts the patient to the patient’s room to dine alone. What is the rationale for this action?

A nursing diagnosis for a patient with bulimia nervosa is: Ineffective coping related to feelings of loneliness and isolation, as evidenced by use of overeating and self-induced vomiting to comfort self. Select the best outcome related to this diagnosis. Within two weeks, the patient will:

Suppose that around a week ago the great  rewall of China somehow partitioned the Bitcoin network and also undermined NTP (the network time protocol), leading some miners to mine blocks with timestamps several months in the future. As a result, there was a fork and the following two branches were created:   Chain A has 500 blocks since the fork. Because of incorrect timestamps at the time of the last di culty adjustment, the last 498 of these were mined with a target of 2182.   Chain B has 1,000 blocks since the fork. All have plausible timestamps, and all were mined with a target of 2184. Once the network partition heals and miners reset their clocks, which of the two chains will they continue to mine on? Choose the best answer. A. Chain A will be accepted by all miners. B. Chain B will be accepted by all miners. C. Different miners will continue to mine on both chains. Justify your answer:

To best assist a patient with a conversion disorder who has periodic episodes of changes in sensory function with vision, which nursing intervention would be most effective?

The Federal Reserve currently has a reserve requirement of .08.  They intend to increase the money supply by $125,000,000 in order to stimulate growth.  How would they do that? What policy is this? Which specific policy tool would you choose?  What would you recommend doing with this policy tool? Hint via Examples: I would recommend “increasing the ________” I would recommend “changing the ____ to ______.”  How large should the policy measure be? Which direction would the money supply move in response to this policy measure? In order to receive full credit, you should include the Money Multiplier and specific dollar amounts in support of your answers above. 

A family member of a client with schizophrenia asks the nurse to explain the difference between conventional (or traditional) and atypical antipsychotic medications.  Select all that apply