Mass numbers are used to identify different isotopes of an element and are a count of the protons and neutrons found in that isotope's nucleus. Interestingly, the number of protons will remain constant, regardless of the isotope, but the number of neutrons will change. This is because an ato...
It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope K-39 (Potassium, atomic number Z = 19, mass number A = 39)....
Adjusted hazard ratios (HRs) (95% confidence intervals [CIs]) for all-cause (A), cardiovascular (B), and ischemic heart diseases (C) mortality comparing the highest quartile with the lowest quartile of sodium-potassium ratio by sex, race/ethnicity, body mass index (BMI, calculated as weight...
ANOVA adjusted for age, sex, ethnicity, and body mass index (BMI) was used to compare least-squares means of 24-h urinary sodium and potassium excretion and the sodium-to-potassium ratio. The preliminary adjusted model mainly adjusted for age, sex and ethnicity. The fully adjusted model ...
Body mass index BP: Blood pressure CI: Confidence interval CVD: Cardiovascular disease FoPL: Front of packet labelling HotN: Health of the Nation study K: Potassium Na:K: Sodium-to-potassium ratio Na: Sodium NCDs: Non-communicable diseases PAHO: Pan American Health Organization ...
It is highly reactive with a relative density of 0·86 and a melting point of 62·3° C, an atomic weight of 39·0983 and an atomic number of 19; it has 18 isotopes. One of the most abundant chemical elements in the terrestrial crust, it occurs in many rock-forming minerals such ...
All models were adjusted for variables known to increase or reduce the risk of CV events: age, sex, race/ethnicity, prior stroke or MI, creatinine, body mass index (BMI, calculated as weight in kilograms divided by height in meters squared), hypertension, diabetes mellitus, atrial fibrillation...
In man, 2 grains of potassium nitrite showed little effect on pulse (1 grain is a unit of mass equal to ~65 mg; 2 grains translate into a dose of ~2 mg/kg). When the dose was increased to 6 grains, the pulse (measured 40 min after nitrite administration) was increased by ~30 ...
Potassium (Latin kalium from the Arabic gali meaning alkali) is an element with relative atomic mass of 39.0983 and atomic number 19. A silvery white and soft, very reactive alkali metal, it resembles Na. Its relative density is 0.86, its melting point is 63.5°C and its boiling point is...
39This study has several strengths: (1) use of a nationally representative sample; (2) in-person start and stop of 24-hour urine collection for most participants (n = 782) to try to ensure accurate timing; (3) collection of 24-hour urine across weekdays and weekends as well as ...