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Search Results: 1 - 10 of 44793 matches for " Michael Hastriter "
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A description of four new species of fleas (Insecta, Siphonaptera) from Angola, Ethiopia, Papua New Guinea, and Peru
Michael Hastriter
ZooKeys , 2009, DOI: 10.3897/zookeys.8.82
Abstract: Four new species of fleas are described: Aphropsylla truncata sp. n. (Ethiopia), Ectinorus hirsutus sp. n. (Peru), Rhinolophopsylla traubi sp. n. (Angola), and Thaumapsylla wilsoni sp. n. (Papua New Guinea). Our understanding of the genus Aphropsylla is deficient, therefore a discussion of host/parasite relationships and new records from Uganda are provided. A key is provided for the genus Aphropsylla, while representatives of the other three genera are associated with existing keys to facilitate their identification. The presence of lucodiscs on Apropsylla and other genera is briefly discussed. The occurrence of lucodiscs among representatives of the order Siphonaptera deserves further investigation.
Echidnophaga suricatta (Siphonaptera: Pulicidae),a new species of flea from the Northern Cape Province, South Africa
Michael W. Hastriter
African Zoology , 2011,
Abstract: Echidnophaga suricatta(Pulicidae), a new species of flea collected from the meerkat (Suricata suricatta Schreber, 1776) near Garies (30°22S, 17°31E) and Brandvlei (30°27S, 20°29E), Northern Cape Province, South Africa, is described. Based on chaetotaxy of the tarsal segments, this new species is most closely related to E. bradyta Jordan & Rothschild, 1906, E. iberica, Ribeiro, Lucientes, Osacar & Calvete, 1994,
A description of the flea species Paractenopsyllus madagascarensis n. sp. and the female sex of Paractenopsyllus raxworthyi Duchemin & Ratovonjato, 2004 (Siphonaptera, Leptopsyllidae) from Madagascar with a key to the species of Paractenopsyllus
Michael Hastriter,Carl Dick
ZooKeys , 2009, DOI: 10.3897/zookeys.13.174
Abstract: An alcohol collection of 990 fleas from Madagascar (2003-2005) was deposited in the Field Museum of Natural History, Chicago, and recently made available for study. Among the material were two new and undescribed taxa. The male and female sex of Paractenopsyllus madagascarensis sp. n. is described and host associations are discussed. In addition, a description of the heretofore unknown female of Paractenopsyllus raxworthyi Duchemin & Ratovonjato, 2004 is provided. The tenrec Microgale drouhardi G. Grandidier, 1934 is also reported as a new host record for P. raxworthyi. Host associations for all known records of species of Paractenopsyllus are presented as a table and a key to the known species of Paractenopsyllus is included.
Description of Lentistivalius philippinensis, a new species of flea (Siphonaptera, Pygiosyllomorpha, Stivalidae), and new records of Ascodipterinae (Streblidae) on bats and other small mammals from Luzon, The Philippines
Michael Hastriter,Sarah Bush
ZooKeys , 2013, DOI: 10.3897/zookeys.260.3971
Abstract: During May 2009 and July 2011, we collected 357 mammals and examined each for ectoparasites. Among the ectoparasites collected, a new species of flea was discovered. This new species, Lentistivalius philippinensis, is described from the male sex only. Two males were recovered from two specimens of the soricid Crocidura grayi Dobson in Municipality Maria Aurora, Aurora Province, Luzon, Philippines. Additional fleas included Thaumapsylla breviceps orientalis Smit, Thaumapsylla longiforceps Traub, and Ischnopsyllus indicus Jordan. Although the latter species is common in Japan and documented in Guam (as well as mainland Southeast Asia) also on Pipistrellus javanicus (Gray), I. indicus represents a new record in the Philippine Islands. The ascodipterinae (Streblidae) Maabella stomalata and Ascodipteron speiserianum Muir collected from Rhinolophus inops K. Andersen and Rhinolophus subrufus K. Andersen, respectively, also represent new host records. A key to the species of the flea genus Lentistivalius Traub is provided.
Description of a new species of Ectinorus (E. spiculatus) (Siphonaptera, Rhopalopsyllidae) from Argentina and a review of the subgenus Ichyonus Smit, 1987
Michael Hastriter,Richard Sage
ZooKeys , 2011, DOI: 10.3897/zookeys.124.1688
Abstract: A new species, Ectinorus spiculatus, is described from Phyllotis xanthopygus (Waterhouse) and Akodon iniscatus Thomas from Neuquén Province, Argentina. Habitat characteristics are presented for the type locality. A change in status of four additional subspecies of the Ectinorus subgenus Ichyonus Smit is provided. Ectinorus onychius onychius Jordan & Rothschild, E. onychius deplexus Smit and E. onychius angularis Smit and Rosicky were elevated to specific status. Ectinorus (Ichyonus) onychius fueginus was relegated as a junior synonym of the nominate species. Phyllotis xanthopygus, Abrothrix olivaceus xanthorhinus, Loxodontomys micropus Waterhouse, and Euneomys chinchilloides (Waterhouse) are new host records for E. onychius. A key to the three species of Ichyonus is included.
Does Child Maltreatment Mediate Family Environment and Psychological Well-Being?  [PDF]
Michael Galea
Psychology (PSYCH) , 2010, DOI: 10.4236/psych.2010.12019
Abstract: This study tried to establish if childhood maltreatment mediates the established relationship between family environ-ment and psychological well-being, in a sample of Maltese university students (N = 312). However, our analysis sug-gested partial mediation only. Moreover, results indicated that abusive families are less loving, socially integrated, organized, and more conflicted. Family environment contributed positively, albeit limited, to cognitive well-being after controlling for child abuse history. In particular, cohesion, do add unique variance to subjective well-being, after controlling for child abuse. This study replicates classic research on the important role that family environment plays in children’s holistic development.
Blended Change Management: Concept and Empirical Investigation of Blending Patterns  [PDF]
Michael REISS
iBusiness (IB) , 2009, DOI: 10.4236/ib.2009.12008
Abstract: In coping with the challenges of revolutionary or evolutionary change processes, change managers do not rely on single tools but on toolboxes containing several domains of tools. The impact of toolboxes on change performance depends both on the complementary inter-domain mix and the intra-domain blending of tools. The patterns of blending are investigated both conceptually and empirically with respect to scope, diversity and coupling of tools. Survey results indicate that blending practices are predominantly determined by rational tool evaluation and by task context.
Single Wire Electrical System  [PDF]
Michael Bank
Engineering (ENG) , 2012, DOI: 10.4236/eng.2012.411092
Abstract: The purpose of this article is to remind of the past and present problems of creating single wire electrical systems. This article presents a new one wire electrical transmission system named B-Line which uses one line only and does not use ground as a second line. The proposed method is to work on all frequencies and on all communication systems including DC systems. It also proposes to work on the concept of the single-pole signal source and single-pole signal load. It illustrates the possibility of cutting the cost of electrical lines and several other advantages in the fields of high frequency communication lines and antennas.
Relationship of nine constants  [PDF]
Michael Snyder
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.59117
Abstract:

Through the process of trial and error, four unitless equations made up of nine constants have been found with exact answers. The related constants are the Speed of Light [1], the Planck constant [2], Wien’s displacement constant [3], Avogadro’s number [4], the universal Gravity constant [5], the Ampere constant [6], the Faraday constant [7], the Gas constant [8] and Apery’s constant [9].

The Counterfeit Electronics Problem  [PDF]
Michael Pecht
Open Journal of Social Sciences (JSS) , 2013, DOI: 10.4236/jss.2013.17003
Abstract:

Counterfeit electronics have been reported in a wide range of products, including computers, telecommunications equipment, automobiles, avionics and military systems. Counterfeit electronic products include everything from very inexpensive capacitors and resistors to costly microprocessors to servers. This paper describes the counterfeit electronic products problem, and discusses the implication of counterfeit electronics on the electronic supply chain. We then present counterfeit detection and prevention techniques for electronics.

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