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3a. Draw the repeat unit for a polyester formed by the condensation reaction of these monomers: HO OH CH = CH2 HO OH 3b. What is the molecular weight of a chain of this polymer that contains 950 repeat units?

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1. OBJECTIVES. American Academy of Pediatrics consensus statement recommendations are to consider strongly for infants 6 to 12 months of age with a first simple febrile seizure and to consider for children 12 to 18 months of age with a first simple febrile seizure lumbar puncture for cerebrospinal fluid analysis. Our aims were to determine compliance with these recommendations and to assess the rate of bacterial meningitis detected among these children. METHODS. A XXXXXXXXXXX was performed for patients 6 to 18 months of age who were evaluated for first simple febrile seizure in a pediatric emergency department between October 1995 and October 2006. RESULTS. First simple febrile seizure accounted for 1% of all emergency department visits for children of this age, with 704 cases among 71 234 eligible visits during the study period. Twenty-seven percent (n = 188) of first simple febrile seizure visits were for infants 6 to 12 months of age, and 73% (n = 516) were for infants 12 to 18 months of age. Lumbar puncture was performed for 38% of the children (n = 271). Samples were available for 70% of children 6 to 12 months of age (131 of 188 children) and 25% of children 12 to 18 months of age (129 of 516 children). Rates of lumbar puncture decreased significantly over time in both age groups. The cerebrospinal fluid white blood cell count was elevated in 10 cases (3.8%). No pathogen was identified in cerebrospinal fluid cultures. Ten cultures (3.8%) yielded a contaminant. No patient was diagnosed as having bacterial meningitis. CONCLUSIONS. The risk of bacterial meningitis presenting as first simple febrile seizure at ages 6 to 18 months is very low. Current American Academy of Pediatrics recommendations should be reconsidered. a. Is this study analytic or descriptive and how can you tell? (2pts) b. What is its public health purpose? (2pt)

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True A combination chart combines two chart types and can plot data on primary and secondary axes. False

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During development what happens if a t cell interacts with an MHC I marker? Why does this happen?

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Until Playboy entered the marketplace, most large-circulation magazines had conventional values. a. True b. False Until Playboy entered the marketplace, most large-circulation magazines had conventional values. Oa.True Ob.False

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Problem #7: Use the given graphs to sketch the parametric curve $x = f(t)$, $y = g(t)$.

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State the value of x for which function is undefined. f(x)= (2)/(x-5)

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IBM wants to issue a bond with 10% coupon rate (semi-annual compounding), $1000 face value, and 10 years maturity. If the current required rate of return is 12%, how the bond should be priced? A. At Par Value B. At Discount C. At Premium D. None of the above

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Calculate the current $i_o$ in the given circuit if $V = 40\text{ V}$. What value of input voltage is necessary to make $i_o$ equal to 5 A? 5 ? WW 25 ? ww 40 ? 15 ? The current $i_o$ in the given circuit is ____ mA. The value of input voltage necessary to make $i_o$ equal to 5 A is ____ V.

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A (monomer) is polymerized at high temperature. If the temperature is higher than 105°C, the properties of the product are undesired. The ideal reaction temperature is 102°C. The reaction rate at that temperature is fist order with respect to the monomer. The reaction is carried out in two identical CSTR connected in serie, obtaining a conversion of 0.8. It is desired to add a third identical reactor to increase the production. How much can you increase the volumetric flow rate to have a final conversion that at least 80%?

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deborah o.