The purpose of this study was to compare the mean speaking fundamental frequency (SFF), speaking frequency range, and mean speaking intensity for a group of trained male singers and a group of age-matched non-singers in three age ranges: 20 to 35 years old; 40 to 55 years old; and older than 65 years. Each subject was recorded as he read "The Rainbow Passage" and produced the vowel /a/ to the l...

A simple treatment was shown to be suitable for clinical measurement of fundamental voice frequency. Basal frequency (SFF) and lowest frequency (LF) were determined in 374 normal subjects aged 6 years to adulthood. SFF fell between ages 8 and 10 years in boys (from 259 to 247 Hz), but not in girls (253 Hz). LF fell between ages 6 and 10 years in boys (from 234 to 203 Hz) and girls (from 230 to ...

Cross-sectional imaging techniques are being increasingly used for disease evaluation in patients with multiple myeloma. Whole body magnetic resonance imaging (WB-MRI) scanning is superior to plain radiography in baseline assessment of patients but changes following treatment have not been systematically explored. We carried out paired WB-MRI scans in 21 newly diagnosed patients prior to, and 8...

We investigate the Hα and infrared star formation rate (SFR) diagnostics for galaxies in the Nearby Field Galaxy Survey (NFGS). For the 81 galaxies in our sample, we derive Hα fluxes (included here) from integrated spectra. There is a strong correlation between the ratio of far-infrared to optical luminosities L(FIR)/L(Hα) and the extinction E(B − V ) measured with the Balmer decrement. Before ...

Intensive management of southern pine plantations has yielded multifold increases in productivity over the last half century. The process of harvesting merchantable material and preparing a site for planting can lead to a considerable loss of organic matter. Intensively managed stands may experience more frequent disturbance as rotations decrease in length, exposing the stands to conditions tha...

BACKGROUND The 'CLB2 cluster' in Saccharomyces cerevisiae consists of approximately 33 genes whose transcription peaks in late G2/early M phase of the cell cycle. Many of these genes are required for execution of the mitotic program and then for cytokinesis. The transcription factor SFF (SWI5 factor) is thought to regulate a program of mitotic transcription in conjunction with the general trans...

Current Solid Freeform Fabrication (SFF) technologies can manufacture, directly from digital data, end-use mechanical parts in an increasingly wide variety of engineering materials. However, commercial SFF systems remain costly, complex, proprietary, and are limited to working with one or two proprietary materials during the course of building a part, hindering their broader application and the...

OBJECTIVES We sought to determine which of the two main potential mechanisms underlying Thrombolysis In Myocardial Infarction flow grade 2 (TIMI-2 flow) operate in an individual patient who has had an acute myocardial infarction (AMI). BACKGROUND Systolic flow reversal (SFR) is a specific finding of capillary damage, the no-reflow phenomenon. The coronary blood flow velocity (CBFV) pattern of...

Background: Salivary flow rate (SFR), to estimate salivary gland dysfunction and radioactivity in different body fluids, to evaluate its intensity, were determined in thyroid patients after 131-I therapy. Material and Methods: For determination of SFR an innovative sponge test was adopted and the radioactivity in saliva, blood and serum of thyroid patients was determined by NaI (TI) Scintillati...

Software methods in Mathematica are presented for creating visually interesting 3D forms to be produced on solid freeform fabrication (SFF) machines. Concise examples demonstrate fundamental techniques of procedural design that can be combined and extended in many creative ways. This overview should interest non-programmers who attend mathematical art exhibits of SFF objects and wonder where to...