Blog

44). A relationship between two organisms in which one partner benefits and the other is harmed is termed:   Hint: Its like having a relationship and the other person is not contributing but enjoys all that you provide.

47). What term best describes the relationship between E. coli (the non-pathogenic strain) in the human gut and the host?

One week following a myocardial infarction, a patient reports experiencing fatigue to the nurse. The nurse notes the client is slightly short of breath and the pulse rate is 110 bpm. Which action by the nurse is best?

What is the [ H3O+] in a solution with [OH-] = 3.5 × 10-12 M?

The following code exhibits certain race conditions. Please identify them and rearrange the code to correct them.  If needed, you may add additional lines like pthread_mutex_lock, etc. #include #include #include pthread_mutex_t mutex;pthread_cond_t cond;int ready = 0; void* worker(void* arg) {    printf(“Worker thread waiting…\n”);    while (!ready) {        pthread_cond_wait(&cond, &mutex);    }    printf(“Worker thread proceeding!\n”);    return NULL;} void* signaler(void* arg) {    sleep(1);    printf(“Signaler thread signaling!\n”);    pthread_cond_signal(&cond);    ready = 1;    return NULL;} int main() {    pthread_t t1, t2;    pthread_mutex_init(&mutex, NULL);    pthread_cond_init(&cond, NULL);     pthread_create(&t1, NULL, worker, NULL);    pthread_create(&t2, NULL, signaler, NULL);        pthread_join(t1, NULL);    pthread_join(t2, NULL);     pthread_mutex_destroy(&mutex);    pthread_cond_destroy(&cond);        return 0;}

Consider the following set of processes, their CPU burst times, their arrival times, and their priorities (where a higher priority is better) ProcessID  CPUBurstTime ArrivalTime Priority P1 3 0 4 P2 5 2 2 P3 2 5 6 P4 4 7 5   (a) (4pts) Draw a Gantt Chart (timeline) for the task schedule that would be generated using a First-Come, First-Serve scheduler. Find the average waiting time. (b) (4pts) Draw a Gantt Chart (timeline) for the task schedule that would be generated using a preemptive priority scheduler. Find the average waiting time. (c) (4pts) Draw a Gantt Chart (timeline) for the task schedule that would be generated using a preemptive Shortest Job First scheduler(of Shortest Remaining Time first). Find the average waiting time.   The Gantt chart can be drawn as follows since we are taking the test online.   p1(startime-duration) p2(start time – duration)

  a) Assuming they are acting optimally given the demand and financial parameters they face;  what is the optimal order quantity, Q*?

c) If the store orders Q*, what will be the supplier’s profit per year? 

Contrary to Hobbes to resolve the conflict of interest, Ayn Rand argues:

Psychological egoism states: