Superfluidlike Mass Flow Through 8 μm Thick Solid He4 Samples

HE4, CA-125, and cystic ovarian mass

To the editor: The recent publication on ‘HE4, CA-125, and cystic ovarian mass’ is very interesting [1]. Partheen et al. [1] concluded that HE4 did not outperform CA-125. Indeed, the use of two biomarkers might be expected for increased screening ability; however, the problem of the cost should be kept in mind. Incremental analysis on additional cost should be done. Based on the present report,...

Glow Discharge Mass Spectrometry : Trace Element Determinations in Solid Samples

Glow discharge mass spectrometry (GDMS) is a mature, versatile technique for the direct determination of trace elements in a variety of materials. The technique is an extension of the earliest forms of mass spectrometry. Processes inherent to the glow discharge, namely cathodic sputtering coupled with Penning ionization, yield an ion population from which semi-quantitative results can be direct...

Observation of mass transport through solid 4He

An 11-μm-thick glycocalyx?: it's all in the technique!

The endothelial glycocalyx is composed of glycoproteins, proteoglycans, and glycosaminoglycans within a highwater-content meshwork overlying the endothelial cells lining blood vessels. This structure maintains the integrity of vascular permeability, protects endothelial cells against leukocytes and red blood cells, and regulates vascular flow and function.1,2 The preservation of the thickness o...

Through Thick and Thin

Patients with symptoms caused by hypertrophic obstructive cardiomyopathy are treated with β-blockers, verapamil, and disopyramide. Novel drugs are under development. The minority of patients whose symptoms interfere substantially with lifestyle despite optimal pharmacological management may be offered septal reduction therapy with ablation or myectomy. Other mechanical therapies, including shor...