A chemically diverse conducting polymer-based "electronic nose".

We describe a method for generating a variety of chemically diverse broadly responsive low-power vapor sensors. The chemical polymerization of pyrrole in the presence of plasticizers has yielded conducting organic polymer films whose resistivities are sensitive to the identity and concentration of various vapors in air. An array of such sensing elements produced a chemically reversible diagnostic pattern of electrical resistance changes upon exposure to different odorants. Principal component analysis has demonstrated that such sensors can identify and quantify different airborne organic solvents and can yield information on the components of gas mixtures.

Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A)

Sediments recovered at lower bathyal ODP Site 1049 on Blake Nose (Northwestern Atlantic) offer an opportunity to study environmental changes at the Cretaceous/Paleogene (K/P) boundary relatively close to the Chicxulub impact structure on the Yucatan peninsula, Mexico. In Hole 1049C, the boundary is located at the base of a 9-cm-thick layer with abundant spherules, considered to be impact ejecta. Uppermost Maastrichtian oozes below, and lowermost Danian pelagic oozes above the spherulebed contain well-preserved bathyal benthic foraminifera. The spherule-bed itself, in contrast, contains a mixture of shallow (neritic) and deeper (bathyal) species, and specimens vary strongly in preservation. This assemblage was probably formed by reworking and down-slope transport triggered by the K/P impact. Across the spherule-bed (i.e., the K/P boundary) only ~7% of benthic foraminiferal species became extinct, similar to the low extinction rates of benthic foraminifera worldwide. Quantitative analysis of benthic foraminiferal assemblages and morphogroups in the >63-µm size fraction indicates a relatively eutrophic, stable environment during the latest Maastrichtian, interrupted by a sudden decrease in the food supply to the benthos at the K/P boundary and a decrease in diversity of the faunas, followed by a stepped recovery during the earliest Danian. The recovery was probably linked to the gradual recovery of surface-dwelling primary producers.

Facts about the nose and nasal irrigation /

Mode of access: Internet.

Essays on the applied physiology of the nose,

Bibliographical foot-notes.

That nose! An original farce, in one act.

Mode of access: Internet.

Diseases of the ear, nose, and throat and their accessory cavities. A condensed text-book.

The colored plates are accompanied by leaves with explanatory letterpress.

On the use of medicated inhalations in the treatment of diseases of the respiratory organs. With an appendix on diseases of the nose and throat,

Mode of access: Internet.

Orthopaedic surgery : a text-book of the pathology and treatment of deformities /

Portions of this book have previously appeared in medical journals.

The annals of a baby. How it was named; how it was nursed; how it was a tyrant; and how its nose got out of joint. Also, a few words about its aunties, its grandfathers, grandmothers, and other important relations.

At head of title: A companion to "Helen's babies".

Diseases of the eye, ear, throat, and nose, a manual for students and practitioners,

Mode of access: Internet.

Office treatment of the nose, throat & ear

"References" at end of each chapter.