Category Archives: Economics

 Think about your current home environment. If you used a manual wheelchair, would you still be able to live in your current home?

1.       Think about your own personal environmental hierarchical continuum. What are some of your proximal and distal environments? If you were suddenly unable to access these environments independently, how would this affect your life?

2.        Think about your current home environment. If you used a manual wheelchair, would you still be able to live in your current home? What new limitations would you face? What if you were using a power wheelchair or a scooter? What adaptations would have to be made? Would you be able to continue independently engaging in your meaningful occupations?

Does the patient require treatment prior to surgery and, if so, what treatment?

The patient's platelet count is normal, ruling out thrombocytopenia, and a single dose of ibuprofen would not be expected to result in a severe tissue hemorrhage, even with trauma. The PTT is prolonged, suggesting an abnormality of the “intrinsic” coagulation factors XI, IX, or VIII. Since this patient has no history of hemophilia A or B, a “mixing study” using aI: Idilution of patient plasma with pooled normal plasma to exclude an inhibitor is in order. A platelet function assay for von Wille brand disease is also indicated. The results in this patient are as follows: Inhibitor mixing assay – PTT (@ time 0) = 34 seconds (control = 32 seconds) PTT (@ 60 minutes) = 56 seconds (control = 34 seconds) Platelet function assay – PFA collagen/ADP….

What does immunopheno typing reveal

The PTT mixing study is consistent with an inhibitor, and the pattern of immediate correction followed by prolongation after incubation for 60 minutes is characteristic of a factor VIII inhibitor. PFA closure times rule out platelet dysfunction, either ibuprofen induced or von Wille brand disease. Further workup of the “inhibitor” requires measurements of factor levels and inhibitor titer. The results in this patient are as follows: Factor XI activity = 85% Factor IX activity = 91% Factor VIII activity = 2%; non-linear pattern with dilutions Factor VIII inhibitor titer = 23 Bethesda U/mL These results confirm a factor VI II deficiency-based coagulopathy consistent with an acquired “strong” autoantibody to factor VIII (a factor VI II of 2% with non-linear dilutions and a titer of 23 Bethesda U/mL). n….

How do you account for the fact that, although potassium is placed after argon in the periodic table

How do you account for the fact that, although potassium is placed after argon in the periodic table,

it has a lower relative atomic mass? What is the evidence that the aufbau principle is only approximately true? The first list in the table opposite contains symbols or phrases, each of which has a ‘partner’ in the second list. Match the ‘partners’; there is only one match for each pair of symbols or phrases.

Suggest explanations for the following. (a) High values of ionization energies are associated with the noble gases. (b) The enthalpy changes associated with the attachment of the first and second electrons to an O atom are exothermic and endothermic, respectively. (c) In an Li atom in its ground state, the outer electron occupies a 2s….

Draw possible stereoisomers for the trigonal bipyramidal [SiF3Me2]_ anion (Me ¼ CH3).

(a) Draw possible stereoisomers for the trigonal bipyramidal [SiF3Me2]_ anion (Me ¼ CH3). An

X-ray diffraction study of a salt of [SiF3Me2]. shows that two F atoms occupy axial sites. Suggest why this stereoisomer is preferred over the other possible structures that you have drawn.

(b) Account for the fact that members of the series of complexes [PtCl4]2, [PtCl3(PMe3)]–, [PtCl2(PMe3)2] and [PtCl(PMe3)3]þ do not possess the same number of stereoisomers.