The Palaearctic genus Paralipsis Foerster, 1863 (Hymenoptera: Braconidae: Aphidiinae) is revised and two new species are described: Paralipsis tibiator van Achterberg & Ortiz de Zugasti, sp. n. from Spain and Paralipsis planus van Achterberg, sp. n. from the Netherlands. Some biological notes are supplied for Paralipsis tibiator sp. n. A key to the four known species is added and all species ar...

The paper presents a description of the hitherto unknown larva of Ecclisopteryx malickyi Moretti 1991. Information for the identification of this species is given, and the most important diagnostic features are illustrated. Some zoogeographical and ecological notes are added. Furthermore, larval morphology of the whole genus is discussed and differentiating characters are given.

The monotypic genus Linoderus Sharp, 1885 was described based on a species from Panama and since the original description nearly nothing has been added to its taxonomical knowledge. The aim of the present paper is to describe a new species of the genus from Colombia and to report the genus for the first time from South America, adding some biological notes of the species.

These are the notes for a course taught at the University of Michigan in F92 as Math 676. They are available at www.math.lsa.umich.edu/∼jmilne/. Please send comments and corrections to me at [email protected]. v2.01 (August 14, 1996.) First version on the web. v2.10 (August 31, 1998.) Fixed many minor errors; added exercises and index.

The paper presents a description of the hitherto unknown larva of Drusus nigrescens Meyer-Dür, 1875. Information on the morphological and genetic identification of this species is given, and the most important diagnostic features are illustrated. Its systematic position within the genus Drusus is affirmed and some zoogeographical and ecological notes are added.

Two simple class-F NVI1VIIC power amplifiers are described using 0.7tm field-plated GaN HEMT devices. One circuit was designed for operation at 2.0 GHz and achieved a power-added-efficiency of 50%, 38 dBm output power, and 6.2 W/mm power density. A second circuit was designed at 2.8 GHz and achieved a PAE of 46% with 37 dBm output power and 7.0 W/mm power density.

The aim of this study was to describe Scaptotrigona nigrohirta sp. nov. and hylaeana nov., in order make their names valid, since at least one these species has already been widely studied cited, however, never formally validated. Also, we have added some comparative notes among species.

safīnat al-bihār wa madīnat al-hikam wa al-āthār, a precious book by sheikh abbās qumī, is a comprehensive content list for the famous book, bihar al-’anwār al-jāmi‘ah li al-durar al-akhbār al-’a’immat al-’athār by allāmah madjlesī. the big number of volumes bihar al-’anwār’ contains as well as the diverse subjects it covers, caused the hadīth narrator, qumī, to write a content list for that bo...

These notes give a concise exposition of the theory of fields, including the Galois theory of finite and infinite extensions and the theory of transcendental extensions. They are an expansion of those handed out during a course taught to first-year graduate students. v2.01 (August 21, 1996). First version on the web. v2.02 (May 27, 1998). Fixed about 40 minor errors; 57 pages. v3.00 (April 3, 2...

The work presented in this letter describes a tool for object tracking, notes insertion, and information retrieval, applicable to MPEG-2 sequences. Maximum compliance with the MPEG standard is sought, so the added information is transmitted as side information without affecting the actual video-audio stream as defined in the MPEG2 standard. Additional processing is added to a standard sequence,...