I think Boyd is most likely trying to change the accuracy of the mass of the product formed in the reaction. He uses smaller graduations in order to really record the exact mass of the product up to the smallest graduation available. Hope this answers the question.
In diagnosing thyroid disease, thyroid function must be established first. This can be done by testing for the TSH, T4 and T3 in the serum. After testing for the thyroid function, ultrasound must be done, this can help us to visualize if the nodules are cystic or solid. Ultrasound can also help establishing the size of the tumor as well as if there is an invasion. FNAB can be done to determine the presence of malignancy, before doing this patient must be in euthyroid state. Hyperthyroid patient can lead into thyroid storm if FNAB was done without knowing the thyroid function of the patient.
stony and iron are two of the three main meteorites
The interphase period of stem cells would be short. This is because embryonic stem cells undergo rapid changes, so the interphase period would not be very long. If the entire cycle occurs during a short time period, then the interphase period is also short.