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New species of the South American loxandrine genus Metoncidus Bates (Coleoptera, Carabidae)
Will, Kipling W.;
Revista Brasileira de Entomologia , 2004, DOI: 10.1590/S0085-56262004000400003
Abstract: two species are added to the previously monotypic genus metoncidus bates, 1871 (carabidae, loxandrini): m. epiphytus sp. nov. (type locality peru: loreto, cocha shinguito) and m. gracilus sp. nov. (type locality peru: tambopata, madre de dios). information allowing identification of the genus from among other south american carabid genera and a key to adult individuals of metoncidus species are provided.
Cleaner birds: an overview for the Neotropics
Sazima, Ivan;Sazima, Cristina;
Biota Neotropica , 2010, DOI: 10.1590/S1676-06032010000400025
Abstract: several bird species feed on a variety of external parasites and epibionts, organic debris, dead and wounded tissue, clots and blood, and secretions from the body of other vertebrates (hosts or clients). we present an overview of so called cleaner birds from the neotropics based on field records, literature, and photo survey. we found that 33 bird species in 16 families practice cleaning even if some of them do so very occasionally. the birds range from the galápagos ground finch geospiza fuliginosa to the widespread black vulture coragyps atratus. clients mostly are large herbivores such as capybaras, deer, and livestock, but also include medium-sized herbivores such as iguanas and tortoises, and carnivores such as boobies and seals - a few bird species associate with these latter marine mammals. no carnivorous terrestrial mammal client is recorded to date except for a domestic dog, from whose hair black vultures picked organic debris. some clients adopt particular inviting postures while being cleaned, whereas others are indifferent or even disturbed by the activity of cleaner birds. capybaras, giant tortoises, and iguanas are among the inviting clients, whereas boobies try to dislodge the 'vampire' finch geospiza difficilis. most of the neotropical cleaner birds may be lumped in one broad category (omnivores that dwell in open areas and associate with large to medium-sized herbivores). a second, restricted category accommodates some species from patagonia and the galápagos islands (omnivores that dwell in open areas and associate with carnivorous marine mammals, or seabirds and marine reptiles). two still more restricted categories accommodate the following: 1) forest-dwelling cleaner birds; and 2) marine coastal cleaners. additional records of neotropical cleaner birds will mostly fall in the broad category.
Larva of Nealcidion bicristatum (Bates, 1863) (Cerambycidae, Lamiinae, Acanthocinini)
Casari, S?nia A.;Martins, Ubirajara R.;
Papéis Avulsos de Zoologia (S?o Paulo) , 2011, DOI: 10.1590/S0031-10492011003200001
Abstract: the larva of nealcidion bicristatum (bates, 1863) is described and illustrated. biological notes and a comparison with n. bispinum (bates, 1863) are also presented.
An Energy Feedback System for the MIT/Bates Linear Accelerator  [PDF]
D. H. Barkhuff,S. P. Wells,T. Averett,D. H. Beck,E. J. Beise,D. Cheever,G. Dodson,S. Kowalski,R. D. McKeown,B. A. Mueller,M. Pitt,D. Spayde,C. Tschalaer,A. Zolfaghari
Physics , 1999, DOI: 10.1016/S0168-9002(00)00260-6
Abstract: We report the development and implementation of an energy feedback system for the MIT/Bates Linear Accelerator Center. General requirements of the system are described, as are the specific requirements, features, and components of the system unique to its implementation at the Bates Laboratory. We demonstrate that with the system in operation, energy fluctuations correlated with the 60 Hz line voltage and with drifts of thermal origin are reduced by an order of magnitude.
Diversity and distribution of the free-living freshwater Cyclopoida (Copepoda: Crustacea) in the Neotropics
Silva, WM.;
Brazilian Journal of Biology , 2008, DOI: 10.1590/S1519-69842008000500016
Abstract: cyclopoida species from the neotropics are listed and their distributions are commented. the results showed 148 species in the neotropics, where 83 species were recorded in the northern region (above upon equator) and 110 species in the southern region (below the equator). species richness and endemism are related more to the number of specialists than to environmental complexity. new researcher should be made on to the copepod taxonomy and the and new skills utilized to solve the main questions on the true distributions and cyclopoida diversity patterns in the neotropics.
Revision of Eupempelus Bates and its transference to Heteropsini Lacordaire (Coleoptera, Cerambycidae, Cerambycinae)
Mermudes, José Ricardo M.;Napp, Dilma Solange;
Revista Brasileira de Zoologia , 2001, DOI: 10.1590/S0101-81752001000100027
Abstract: the genus eupempelus bates, 1870 is revised and its taxonomic position altered in transferring from cleomenini lacordaire, 1869 to heteropsini lacordaire, 1869. the genus and the type species, eupempelus olivaceus bates, 1870, are redescribed and two new species added: eupempelus illuminus sp. n., from bolivia and e. spinithorax sp. n., from ecuador. all the species are illustrated and keyed.
CVA under Bates Model with Stochastic Default Intensity  [PDF]
Yaqin Feng
Journal of Mathematical Finance (JMF) , 2017, DOI: 10.4236/jmf.2017.73036
Abstract: Counterparty credit risk has received increasing attention and become a topical issue since 2007 credit crisis, particularly for its impact on the valuation of the OTC derivatives. Credit Value Adjustment (CVA) has become an import field and it is required in Basel III. This paper studies CVA for European options under Bates model with stochastic default intensity. We develop a Monte Carlo and finite difference method framework for assessing exposure profiles and impact of counterparty credit risk in pricing. The exposures are computed by solving a partial integro-differential Equation (PIDE) using implicit-explicit (IMEX) time discretization schemes. CVA in presence of wrong way risk (WWR) is embedded in the correlation between risk factor and default intensity. Meanwhile, the jump-at-default feature of the models offers an effective means to assess WWR. Our results show that both jump and WWR play an important role in evaluating CVA and exposures. The impact is significant and it is crucial for risk management purpose.
Diversidad de la familia Carabidae (Coleoptera) en Chile
ROIG-JU?ENT,SERGIO; DOMíNGUEZ,MARTHA C.;
Revista chilena de historia natural , 2001, DOI: 10.4067/S0716-078X2001000300006
Abstract: the family carabidae is the fourth largest coleoptera family in chile. the present work includes a brief compilation on the taxonomic history of the family and the first expeditions to chile. in addition, knowledge of carabid diversity in chile is compared with that of the neotropics and other south american countries. there are 21 tribes of carabidae represented in chile (38.8 % of the total found in neotropics), with 95 genera (28.2 % of the neotropical fauna), and 365 species (7.9 % of the total from the neotropics). chile has a low number of tribes compared with other countries, but it is an important area because six relictual tribes occur within it, being mostly gondwanan or pangeic. at the generic level, 18 genera are endemic (18.5 % of chilean genera), 28 genera are restricted to chile and argentina, and six to chile, argentina, and uruguay. the number of carabid species in chile is low compared with other south american countries, but the number of endemic species is high, 204, which is 55.8 % of the total carabid fauna of the country. this high endemicity in chile might be due to chile′s isolated situation in south america. the andean mountains and the northern desert region, separate chile from most of the neotropical fauna, as is shown by the absence of important tribes such as the galeritini, scaritini, and brachinini. keys for all genera present in chile are provided, with a brief description of habitat and species richness of each
Aphodiinae described or recorded by Bates in Biologia Centrali-Americana (Coleoptera Scarabaeoidea: Aphodiidae)
Marco Dellacasa,Robert D. Gordon,Giovanni Dellacasa
Acta zoológica mexicana , 2002,
Abstract: Las especies de Aphodius descritas o registradas por Bates (1887, 1889) en la Biologia Centrali-Americana son discutidas, resultando algunas combinaciones nuevas o status nuevos como sigue: Aphodiusdugesi Bates, 1887 = Diapterna dugesi (Bates, 1887) comb. n.; Aphodius sallei Harold, 1863 = Agrilinus sallei (Harold, 1863) comb. n.; Aphodius lansbergei Harold, 1874 = Agrilinus lansbergei (Harold, 1874) comb. n.; Aphodius indutilis Harold, 1874 = Agrilinus indutilis (Harold, 1874) comb. n.; Aphodius azteca Harold, 1863= Agrilinus (s. l.) azteca (Harold, 1863) comb. n.; Aphodius oleosus Harold, 1871 = Pharaphodius (s. l.) oleosus (Harold, 1871) comb. n.; Aphodius innexus Say, 1835 = Liothorax innexus (Say, 1835) comb. n.; Aphodius cruentatus LeConte, 1878 = Agoliinus (s. l.) cruentatus (LeConte, 1878) comb. n.; Aphodius glyptus Bates, 1887 = Trichonotuloides glyptus (Bates, 1887) comb. n.; Aphodius latecrenatus Bates, 1887 =Trichonotuloides latecrenatus (Bates, 1887) comb. n.; Aphodius euprosopus Bates, 1887 = Agrilinus (s. l.) azteca ab. euprosopus (Bates, 1887) stat. n. y comb. n.; Aphodius constricticollis Bates, 1889 = Imeldaconstricticollis (Bates, 1889) comb. n.; Aphodius opisthius Bates, 1887 (nuevo nombre para Aphodius duplex Bates, 1887) = Gonaphodiellus opisthius (Bates, 1887) comb. n...
Revis?o do gênero Sympleurotis Bates (Coleoptera, Cerambycidae, Lamiinae, Colobotheini)
Julio, Carlos Eduardo de Alvarenga;Monné, Miguel A.;
Revista Brasileira de Entomologia , 2005, DOI: 10.1590/S0085-56262005000300008
Abstract: sympleurotis bates, 1881 is revised. sympleurotis rudis bates, 1881 and s. armatus gahan, 1892 are redescribed and two new species added: s. wappesi sp. nov., from guatemala and s. albofasciatus sp. nov., from mexico. all the species are illustrated and keyed.
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