Disogmus rasnitsyni Kolyada & Perkovsky, sp. n. is described from a fossil inclusion of Late Eocene amber (Ukraine). The new species is most similar to Disogmus basalis (Thomson, 1857), in particular, in the shape of the tyloids and the general shortening of the segments of antennae, but distinctly differs from it and the other species of the genus by having tyloids on flagellar segments 2-4 co...

Molecular QED of coherent and incoherent sumfrequency and second-harmonic generation in chiral liquids in the presence of a static electric field P. Fischer & A. Salam To cite this article: P. Fischer & A. Salam (2010) Molecular QED of coherent and incoherent sum-frequency and second-harmonic generation in chiral liquids in the presence of a static electric field, Molecular Physics, 108:14, 185...

The summation formula within Pascal triangle resulting in the Fi-bonacci sequence is extended to the q-binomial coefficients q-Gaussian triangles [1, 2]. 1 Pisa historical remark The Fibonacci sequence origin is attributed and referred to the first edition (lost) of " Fiber abaci " (1202) by Leonardo Fibonacci [Pisano] (see second edition from 1228 reproduced as Il Liber Abaci di Leonardo Pisan...

Four new species of the genus Thoracophorus Motschulsky, 1857 of the Neotropical region are described: T. verhaaghi n. sp., T. zicsii n. sp., T. struyvei n. sp., and T. perplexus n. sp. The new species originate from French Guiana, Peru, and Ecuador. Similar species T. filum Sharp, 1887, T. proximus Irmler, 1985, T. exilis (Erichson, 1840) and T. aequalis Sharp, 1887 are compared to discuss dif...

The career of Theodor Escherich (1857-1911) qualifies him as the first pediatric infectious diseases physician. His landmark bacteriologic studies identified the common colon bacillus (now known as Escherichia coli), and he was very committed to pediatrics, serving as chairman of several prominent departments of pediatrics, including the Department of Pediatrics at the University of Vienna and ...

live in the mouth, gut and female genitalia. Actinomycetes are gram-positive filamentous bacteria rather than fungi, as is sometimes assumed (1). The first case of actinomycosis in a human was reported by Lebert in 1857 (1). Despite the frequency of actinomycosis, spinal actinomycosis is rarely encountered. In this report we describe the computed tomography (CT) and magnetic resonance (MR) imag...

The last instar larva of Metapteron xanthomelas (Lucas, 1857) is described. This is the first description of a larva for the genus. Two live larvae collected in the Brazilian Atlantic coast Restinga Forest of Itanhaém, São Paulo, were reared, one to adult and one was fixed in the last instar. This larva differs from the known Calopterini larvae by the absence of urogomphi, the dorsal abdominal ...