In 1920 very little was known about the class of homogeneous, bounded continua in the plane. At that time Knaster and Kuratowski [l] raised the question:1 Is every such (nondegenerate) continuum a simple closed curve? Mazurkiewicz [2] showed such a continuum is a simple closed curve if it is locally connected, and I showed this is the case if the continuum is aposyndetic [3]. H. J. Cohen [4] pr...

Acrodermatitis continua of Hallopeau (ACH), a variant of pustular psoriasis, chiefly affects distal parts of the hands and feet (1,2). Arthritis occasionally occurs in psoriasis, including pustular psoriasis, as psoriatic arthritis (3), but it is uncommon in ACH. Here, we report on two cases of ACH with arthritis that was improved by infliximab together with methotrexate as well as salazosulfap...

Previous work suggests that methods used in studying categorical perception for segmental contrasts may be useful in determining the representation of suprasegmental contrasts, particularly those based on intonational characteristics. This experiment investigated phonological representations for intonation contours in English by determining the extent of categorical effects in a task involving ...

Discrimination and identification experiments were performed for a vowel continuum (/i//I/-/e/) and two consonant continua (/ba/-/pa/and/ba/-/da/-/ga/). The results were interpreted in terms of a generalization of a theory of intensity resolution [N. I. Durlach and L. D. Braida, J. Acoust. Soc. Am. 46, 372-383 (1969) ] that makes precise the distinction between basic sensitivity (sensory-based ...

Categorical perception occurs when a physical continuum is perceived discontinuously. In speech, a vast body of research has shown that consonants are perceived categorically whereas vowels are perceived continuously. The other major phonetic unit of speech, lexical tone, has been relatively neglected in categorical perception studies. Here tonal language (Thai), and non-tonal language (Austral...

Hemicrania continua is a rare, benign headache disorder characterized by a low-level baseline hemicranial headache with superimposed exacerbations of more severe pain. Exacerbations last from minutes to days and may be associated with ipsilateral autonomic features such as ptosis, miosis, conjunctival injection, lacrimation, or rhinorrhea; when present, these features tend to be less pronounced...

1. Surfaces containing a given volume. In an endeavour to simplify a proof of Liapounoff [2], to the effect that in the problem of the forms of equilibrium of rotating liquids the sphere would be the only form for a liquid at rest, Poincaré [ l ] was led to the consideration of electric capacities of solids of given volume, and arrived at the result that among such bodies the sphere would have ...

Hemicrania continua (HC) is a rare primary headache syndrome, characterized by unilateral pain and an absolute response to indometacin. Since the term was first coined in 1984, more than 100 cases have been described worldwide. Most recently, detailed case series that provide more detailed information concerning the sometimes complex clinical presentation of HC have been reported. Functional im...