Adsorbed Molecules as Interchangeable Dopants and Scatterers with a Van der Waals Bonding Memory in Graphene Sensors.

Molecular adsorption-induced doping and scattering play a central role in the detection mechanism of graphene gas sensors. However, while the doping contributions in electric field-enhanced gas sensing is well studied, an understanding of the effects of scattering is still lacking. In this work, the scattering contribution of the graphene-molecule van der Waals (vdW) complex is studied under various electric fields and the associated vdW bonding retention in the complex is investigated.

Pulmonary edema caused by inhalation of vapors from water-soluble paint.

Aim: To report the effects of inhaling vapor from water-soluble paint after a recent encounter with 16 patients treated in our emergency department.

Methods: We examined a series of chest computed tomography (CT) images from the 16 affected patients. Computed tomography was carried out on days 1, 2, 5, and 19 after the inhalation event.

A vascular anomaly of the iliac artery in a patient with VATER association.

In patients with VATER association, some have vascular anomaly that makes procedure difficult. Pretreatment CT angiography should be necessary for the patients with VATER association's feature.

Fatal delayed rupture of the subclavian artery in a patient with first-rib fracture caused by blunt trauma.

This case highlights the probable association of significantly displaced posterior first-rib fracture and jagged edges of the fracture line following blunt chest trauma with delayed ipsilateral subclavian artery rupture. Early angiography and first-rib repair should promptly be considered under such circumstances.

Electrically Tunable van der Waals Interaction in Graphene-Molecule Complex.

van der Waals (vdW) interactions play a central role in the surface-related physics and chemistry. Tuning of the correlated charge fluctuation in a vdW complex is a plausible way of modulating the molecules interaction at the atomic surface. Here, we report the vdW interaction tunability of the graphene-CO2 complex by combining the first-principles calculations with the vdW density functionals and the time evaluation measurements of CO2 molecules adsorption/desorption on graphene under an external electric field.

[Investigation of the Hounsfield number of drugs in stomach using computed tomography in vitro].

Background: A high density area (HDA) that may represent ingested drugs was detected in the stomach of a patient with a drug overdose (OD) by computed tomography (CT). However, there is no prior evidence that drugs can be visualized as an HDA by abdominal CT. We investigated whether drugs can be imaged as an HDA by CT.

Usefulness of computed tomography in the diagnosis of an overdose.

Computed tomography (CT) is superior for the detection of substances with low radiolucency in comparison with abdominal roentgenograms. In the present study, medical chart review was retrospectively performed for patients who were admitted and underwent plain CT including the stomach on arrival to investigate whether CT is useful for diagnosing overdose (OD). The subjects were divided into patients with OD who did not undergo gastric lavage (OD group) and those without OD (Control group).

Two cases of acute poisoning with acetamiprid in humans.

Introduction: Acetamiprid is a potent and a relatively new neonicotinoid insecticide. Animal studies have indicated that it has a low toxicity to mammals. Despite wide usage, human exposure resulting in toxicity is quite limited, and this is the first report in the English literature about acute acetamiprid poisoning in humans.

Precise size determination of amphotericin B and nystatin channels formed in erythrocyte and liposomal membranes based on osmotic protection experiments.

The colloid osmotic nature of the cell lysis can be prevented by adding osmotic protectants of appropriate sizes to the outer medium. We introduced inorganic and organic electrolytes as protectants to determine the precise channel sizes of the polyene antibiotics, amphotericin B and nystatin, in addition to the sugars so far widely used for this purpose. Because colloid osmotic cell lysis is evidenced by the loss of membrane permeability barriers for small sizes of ions, such as K(+), preceding hemolysis, we firstly simultaneously monitored the time response of the K(+) efflux and hemolysis induced by amphotericin B by combining a fiber-optic spectrometer with a K(+)-selective electrode.

Simultaneous measurements of K+ and calcein release from liposomes and the determination of pore size formed in a membrane.

The changes induced by biologically active substances in the permeability to K+ and calcein of liposomes composed of egg phosphatidylcholine and cholesterol were measured simultaneously in order to rapidly screen the sizes of pores formed in a membrane, using different sized markers. The substances examined in the present study were classified into three types based on differences in the rates at which K+ and calcein were released. The first type released only K+, and included gramicidin A.