Consider a modern packet-switched network of three hops between a source host and a destination host, as shown in the figure below. source host —- packet switch —- packet switch —- destination host   The source host needs to send a message of 1,000,000 bits long to the destination host. The source host segments the message into smaller packets of 1000 bits each and sends the packets through the network. The destination then reassembles the packets back into the original message. Suppose the bandwidth of each link in the above figure is 1 Mbps. Suppose the propagation delay of each link is 1ms. Ignore queuing and processing delays. How long does it take to transfer the entire message from the source host through the network to the destination host when message segmentation is used?

Change is inevitable. As humans, we continuously change throughout our lives, along with our social support needs. Additionally, the importance of each type of social support changes along with the subtypes.  For example, the social support needs of adolescents, young adults, middle-aged adults, and older adults vary. Using the stage of the life span of your choice, explain how the appraisal,  emotional, informational, and instrumental types of social support needs change over one’s lifespan. (125 words)

Mrs. J is an 82-year-old widow who has a rare and debilitating type of arthritis. Mrs. J’s next-door neighbor cooks and cleans for her twice a week.  Mrs. J has maintained a close friendship with Mr. D, her former high school sweetheart. Mr. D is single and lives in a nearby retirement facility.  He calls Mrs. J several times a week and patiently listens to her as she talks about her children and grandchildren.  Recently, Mrs. J received a letter from the Social Security Administration informing her that her benefits would be terminated at the end of the month due to her failure to verify her annual income.  Mrs. J immediately did what she usually does when she receives something in the mail that she does not understand—she called the Director of the local Community Senior Citizen Program. After Mrs. J read the letter to the director, the director told  Mrs. J precisely what to do: immediately send the Social Security Administration (SSA) a copy of her most recent tax return. The next day, Mrs. J mailed a copy of her most recent income tax return to the SSA, and two weeks later, she received a letter from the SSA stating that her benefits had been continued without interruption. What type of social support does Mrs. J receive from Mr. D?

Enduring Ideas are also known as________________. 

A quasi-experimental study has been designed to assess the effectiveness of Core stability exercises for the outcome of overall dynamic stability measured by degrees (the less degrees of motion the more stability). The study compared a core stability group with a control group of patients not receiving care. To control for possible confounders found at baseline an ANCOVA has been completed. Carefully review the table below and interpret the results to answer the following questions:  What do the results revealed in terms of the effectiveness of core stability exercises when compared to baseline (pre vs post)? -consider p value. What do the results reveal in terms of superiority when comparing both groups? Consider p value and effect size.

You are reading the following abstract (see below). Please create the schematics of the study design.  

The average cost (COST) of heating a home is a function of outside Temperature (TEMP), thickness of Insulation (INSUL) and Age of furnace (AGE). Data is collected on these variables and a regression analysis is done on the data. An incomplete MS Excel output is shown below. Regression Statistics         Multiple R           R Square           Adjusted R Square           Standard Error           Observations                        ANOVA             df SS MS F Signifcance F Regression   171220       Residual           Total 19 212916                     Coefficients Standard Error t Stat P-Value Lower 95% Intercept 427 59.6 7.17     TEMPT (X1)   0.7723 -5.93     INSUL (X2) -14.8 4.754       AGE (X3) 12.1 4.012         The observed or computed t-value for the independent variable AGE is: 

A physical therapist wants to know if stress management techniques produce an improvement in pain management for patients with chronic neck pain. A quasi-experimental study design that compares a control group vs intervention group was completed. The intervention consisted of a one-month stress management program. The outcome variables of pain intensity and Neck Disability Index (NDI) (both measured as continuous variables) were collected at the end of treatment, 3-months and 6 months follow up.    After analyzing for normality, both the variables of pain and disability were found to be normally distributed. What statistical test do you expect was used to compare the homogeneity of both groups at baseline only?  

Which of the following components are included in a Master Mix for Polymerase Chain Reaction (PCR) amplification?(Select all that apply)

You read an article on how solar cells work. The textbook discussed LEDs. You were asked to evaluate an AI generated explanation of the similarities and differences. How do solar cells and LEDs compare?