Introduction T1 mapping is a novel quantitative method for myocardial tissue characterization. Reference values of myocardium and blood have been established at 1.5T (Messroghli, MRM, 2007). CMR at 3T is a rapidly maturing field, and T1 values generally increase with magnetic field strength, making it necessary to establish new reference values at this higher field strength. The aim of this stu...

OBJECTIVE Presenting physical performance tests' (PPTs) descriptive reference values and prevalence according to gender and age-group regarding a representative sample of non-institutionalised older adults (aged 60 and over) living in Bridgetown (Barbados) and Havana (Cuba). METHODS This was a cross-sectional, population-based household survey. In Bridgetown and Havana, respectively, 1,508 an...

The reference values of the massic activities of each nuclide and their associated standard uncertainties were established based on the certified activity value of the standard solutions used for spiking the soil, taking into account the successive dilution steps, the mass of spiking solutions and the dry mass of the soil being spiked. Radionuclide Certified Value Bq kg Standard combined uncert...

The conventional population-based normal range has recently been shown to be a generally defective reference criterion for assessing individual laboratory test results. Applying a previously derived formula to published data, we find that the use of age-, sex-specific normal ranges may fail to produce a substantial improvement in sensitivity over nonspecific ranges, even when age-sex difference...

This paper provides the reader with an overview of our current knowledge of hypothalamic-pituitary-thyroid feedback from a cybernetic standpoint. Over the past decades we have gained a plethora of information from biochemical, clinical, and epidemiological investigation, especially on the role of TSH and other thyrotropic agonists as critical components of this complex relationship. Integrating...

BACKGROUND Soft tissue profile can be widely different in various populations. Furthermore, this profile can be also continues to change throughout life. However, there are few studies that quantitatively evaluate the soft tissue profile in Iranian population. In order to determine normal reference values of facial parts in our populations, we aimed to measure standards for facial soft tissue p...

This paper describes a method to extract high resolution position data from a dispersed reference interferometry (DRI) by applying a template matching technique to the acquired spectral interferograms. Calculation of the correlation coefficient between windowed spectral interferograms acquired from the DRI apparatus and a set of numerically calculated template interferograms allows the absolute...

− A universal and robust circuit technique to maintain a constant transconductance in rail-to-rail amplifiers, based on an input stage made up of parallelconnected complementary differential pairs, is introduced in this paper. The principle of operation consists of comparing the total transconductance with a reference value and then, appropriated tail currents are generated for the complementar...

OBJECTIVE To evaluate the distribution of Thyroxin (T4) and Thyroid Stimulating Hormone (TSH) values in children of various age groups attending our hospital. METHOD We have retrospectively reviewed the T4, TSH levels recorded at our hospital in children from birth to 5 years and evaluated the reference intervals for T4 TSH amongst different ages. Non parametric methods were used to establish...

We show that developmental prosopagnosics with severe impairments in both memory for faces and perception of facial identity can make normal trustworthiness judgements of novel faces. We tested four prosopagnosics on three different face sets. The first set consisted of faces that varied on multiple dimensions and that have been used to demonstrate impairments in trustworthiness judgements of p...