5,220 research outputs found
How Latin American researchers suffer in science
How Latin American researchers suffer in scienceIt's time to tackle the cumulative barriers and biases faced by scientists who aren't from wealthy countries.Fil: Valenzuela Toro, Ana M.. University of California at Santa Cruz; Estados Unidos. National Museum of Natural History; Estados UnidosFil: Viglino, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentin
ANNUAL ESTIMATES OF DISTORTIONS TO AGRICULTURAL INCENTIVES IN HIGH-INCOME COUNTRIES
Distorted incentives, agricultural and trade policy reforms, national agricultural development, Agricultural and Food Policy, International Relations/Trade, F13, F14, Q17, Q18,
Differential stability of 2'F-ANA*RNA and ANA*RNA hybrid duplexes: roles of structure, pseudohydrogen bonding, hydration, ion uptake and flexibility
14 pags., 7 figs., 3 tabs.Hybrids of RNA with arabinonucleic acids 2′F-ANA and ANA have very similar structures but strikingly different thermal stabilities. We now present a thorough study combining NMR and other biophysical methods together with state-of-the-art theoretical calculations on a fully modified 10-mer hybrid duplex. Comparison between the solution structure of 2′F-ANA•RNA and ANA•RNA hybrids indicates that the increased binding affinity of 2′F-ANA is related to several subtle differences, most importantly a favorable pseudohydrogen bond (2′F-purine H8) which contrasts with unfavorable 2′-OH-nucleobase steric interactions in the case of ANA. While both 2′F-ANA and ANA strands maintained conformations in the southern/eastern sugar pucker range, the 2′F-ANA strand's structure was more compatible with the A-like structure of a hybrid duplex. No dramatic differences are found in terms of relative hydration for the two hybrids, but the ANA•RNA duplex showed lower uptake of counterions than its 2′F-ANA•RNA counterpart. Finally, while the two hybrid duplexes are of similar rigidities, 2′F-ANA single strands may be more suitably preorganized for duplex formation. Thus the dramatically increased stability of 2′F-ANA•RNA and ANA•RNA duplexes is caused by differencesin at least four areas, of which structure and pseudohydrogen bonding are the most important. © The Author(s) 2010. Published by Oxford University Press.Spanish Ministerio de Ciencia e Innovacion (grants
CTQ2007-68014-C02-02 to CG and BIO2009-10964 to
MO); Fundacion Marcelino Botin (grant to MO);
Canadian Institutes for Health Research (grant to
M.J.D.); Natural Sciences and Engineering Research
Council of Canada (postgraduate scholarship to
J.K.W.). Funding for open access charge: Canadian
Institutes for Health Research
Educadoras e educandos em relação: um olhar sobre os laços afetivos na aprendizagem
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Educação, Programa de Pós-Graduação em Educação, Florianópolis, 2010Esta dissertação, apresentada ao Programa de Pós-graduação em Educação da Universidade Federal de Santa Catarina, à Linha de Pesquisa Ensino e Formação de Educadores, em 05/11/10, tem por objetivo investigar e refletir como são constituídos os laços afetivos na relação entre educadoras e educandos, em uma escola de Educação Básica da Rede Estadual no Município de Morro da Fumaça, em Santa Catarina. Afetividade é aqui compreendida como um estado de afinidade profunda entre as pessoas e o ambiente, capaz de originar sentimentos de amor, desvelo, amizade, altruísmo, por exemplo, ou aqueles que promovem a desqualificação dos sujeitos e limitam seu processo de humanização. Caracteriza-se como um fenômeno complexo, que não se reduz às explicações simplistas. Como um Estudo de Caso, a abordagem desta dissertação se pauta numa perspectiva etnográfica, de análise qualitativa, na qual a complexidade do olhar assume o diálogo com o campo empírico para construir explicações aproximadas sobre o fenômeno afetividade. Nesse sentido é um olhar situado na ética das relações, cuja estética se entrelaça ao enredo biográfico da autora e ao contexto bio-antropo-social (MORIN, 2002, p. 19), para considerar a escola como um lugar onde a vida pulsa em sintonia com os processos curriculares. Reconhece, portanto, que a escola pode ser também um espaço social que privilegia e potencializa uma pedagogia de afeto. Essa pedagogia tem como princípio construir e fortalecer o vínculo entre os sujeitos em convivência, além de criar situações que proporcionem o desenvolvimento da criatividade de educadores e educandos, por meio de relações afetivas qualificadas. Nesse cenário, valoriza a infância como experiência em travessia. Imerso em uma escola pública, o olhar dessa dissertação nasce da dialogicidade entre a pesquisadora, três educadoras do Ensino Fundamental e seu grupo de crianças de sete a dozes anos, educandos das segunda e quarta séries. Com eles, além do vínculo afetivo, é que foram tecidos encontros semanais, as "Rodas de Conversas", realizadas ao longo do ano de 2009 e primeiro semestre de 2010. Em cada um dos encontros, a intencionalidade buscava motivá-los para uma participação ativa na pesquisa, com atividades que trouxessem a expressão de seus sentimentos, a partilha de seus saberes e garantissem a escuta de seus afazeres na dança entre o ensinar e o aprender. A pesquisa apontou, entre outros aspectos, que a escola também reproduz as ideologias da cultura patriarcal, hierarquiza as relações, ocasiona distanciamentos entre os sujeitos, o que dificulta a tessitura de laços afetivos qualificados. Paradoxalmente, os sujeitos criam oportunidades para um estar-junto-com, muitas vezes em processos atravessados por desordens (MORIN, 2010, p.199) que vão configurar diferentes tentativas de transgressão às rotinas instituídas no cotidiano e que transbordam para a sala de aula.This thesis, presented to the Graduate Program in Education at the Federal University of Santa Catarina state, Line Research Education and Training of Teachers, in 05/11/10, aims to investigate and reflect how they are made in the affective relationship between educators and students in a school of Basic Education from the State of the City of Morro da Fumaca in Santa Catarina. Affection is understood here as a state of deep affinity between people and the environment, can cause feelings of love, devotion, friendship, altruism, for example, or those who promote the disqualification of individuals and limit their humanization process. Characterized as a complex phenomenon that can not be reduced to simplistic explanations. As a case study, the approach of this dissertation is guided from an ethnographic perspective, qualitative analysis, where the complexity of the look takes on a dialogue with the empirical field to construct explanations about the phenomenon rough affection. In this way it is a look situated in an ethic of relations, whose aesthetic is intertwined with the plot and the author of the biographical context-bio-social anthropology (MORIN, 2002, p. 19), to consider the school as a place where life pulsates in consistent with the processes of the curriculum. Therefore recognizes that the school may also be a social space that emphasizes and leverages a pedagogy of affection. This pedagogy that has as its principle to build and strengthen the bond between the subjects in coexistence, create situations that provide the development of creativity of educators and students through qualified personal relationships. In this scenario, value the experience of childhood as a journey. Immersed in a public school, the look of this dissertation is born of dialog between the researcher, three teachers of elementary school and his group of children aged seven to twelve years, students of the second and fourth grades. With them, besides the emotional bonds, brings weekly meetings,talk in groups, held during the year 2009 and first semester of 2010. In each case the intention was seeking to motivate them to participate actively in research, with activities that bring the expression of their feelings, sharing their knowledge and ensure the hearing of their business in the dance between teaching and learning. The survey showed, among other things, that school also reproduces the ideologies of a patriarchal culture, hierarchical relationships, causes distances between the subjects, which makes complicate the affective qualified. Paradoxically, the subjects create opportunities for a being-together-with, often crossed by processes disorders (MORIN, 2010, p.199) that will set different attempts at transgression in daily life and routines established that abound in the classroom
Supplemental Material, sj-docx-1-ptd-10.1177_08968608221087794 - Survival study and factors associated with mortality in Chilean patients on peritoneal dialysis infected with SARS-CoV-2
Supplemental Material, sj-docx-1-ptd-10.1177_08968608221087794 for Survival study and factors associated with mortality in Chilean patients on peritoneal dialysis infected with SARS-CoV-2 by Ana M Ortiz, Rodrigo A Sepúlveda, Rubén Torres, René Clavero, Luis Toro, Miguel Albornoz, Tatiana Aldunate, Ingrid Arce, Juan Arévalo, Andrés Arriagada, Julieta Becker, Sonia C González, Waldo Bernales, Eduardo Briones, Álvaro Castillo, Agustín Fuentes, Esteban Gómez, Hernán Jaramillo, Mario Lillo, Eduardo Lorca, Eduardo Machuca, Rodrigo Mansilla, Serwin Menéndez, Carlos Moya, Carolina Muñoz, William Neilson, Rodrigo Orozco, María Padrino, Edgard Pais, Gonzalo Ramírez, María E Sanhueza, Herman Schneider, Ruth Solís, Jaime Troncoso, Marcela Ursu and Marcela Valenzuela in Peritoneal Dialysis International</p
Viajantes ex-cêntricas nas histórias de Ana Miranda
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em Literatura.No conjunto das narrativas ficcionais da escritora brasileira Ana Miranda, a temática da viagem # considerada uma das mais férteis da literatura ocidental de todos os tempos # ocupa um espaço de centralidade, podendo até mesmo ser vista como o mais importante eixo de estruturação de suas obras. O estudo realizado pela presente tese tem por objetivo analisar o tratamento dado ao tema da viagem nos romances Desmundo, O retrato do rei, Dias & Dias e Amrik, evidenciando que por intermédio das narradora-viajantes # Oribela, Mariana, Feliciana e Amina # a autora promove um diálogo entre diferentes culturas, gêneros, etnias e gerações, ao mesmo tempo em que estabelece um profícuo diálogo com o passado em sua invariante problematização concernente aos limites e cruzamentos entre o discurso ficcional e os discursos narrativos extraliterários que o cercam, sobretudo o histórico e o biográfico. In the whole of Brazilian writer Ana Miranda#s fictional narrative, the travel thematic # considered one of the most fertile themes of the western literature of all times # occupies a central space, and can even been seen as the most important structuring axis of Miranda#s works. The aim of the present thesis is to analyze the treatment given to the travel subject in the novels Desmundo, O retrato do rei, Dias & Dias and Amrik, emphasizing that, through the traveling narrators, Oribela, Mariana, Feliciana and Amina, the author promotes a connection between different cultures, genders, ethnics and generations, at the same time that establishes a profitable dialogue with the past in her invariant problematization concerning the limits and crossings between the fictional and the extra-literary narrative discourses that surrounds it, mainly the historical and the biographic ones
Caenohalictus cyanopygus Rojas & Toro
Caenohalictus cyanopygus Rojas & Toro (Figs. 9, 17–19, 25–26, 33, 59) Caenohalictus cyanopygus Rojas & Toro 2000: 182 –183. Holotype: male. Chile, Valparaíso, Cuesta de Pucalán. Museo Nacional de Historia Natural, Santiago. Diagnosis. This striking species can be separated by two unique features: the long, crenulate male antenna, with F 2 longer than F 1 and pedicel together, and the hind tibial spur of the female, which has very short teeth (Fig. 33). The creamy-yellow markings of the male are limited to the apical band of the clypeus, labrum, front of the tibia I and anterior surface of the flagellum. This species has broad black apical bands on the terga of the male, compound eyes with dark brown hairs, vertex and mesoscutum with dark scattered hairs, head and mesosoma shiny green, and metapostnotum usually blue. Male genital capsule (Figs. 17–19): igp covered by several short, specialized setae, slender dorsal process with an acute apex, reaching the penis valve; penis valve with an outer basal tooth; ogp with 3–4 long setae, finely plumose apically, that overlap those of the opposite gonostylus, plate with an acute inner apical angle dorsally; mgl strongly concave; vp slightly displaced towards the sides; va slightly compressed, with its apical half tapering. Variation. A few females have coppery highlights on the mesoscutum, but the rest displayed a common pattern: head and mesoscutum green, the rest of the mesosoma blue and metasoma blue or bluish-green. Comments. Although Rojas and Toro (2000) reported a genital capsule similar to the one described herein, their figure 60 does not match their description mainly in the shape of the mgl and the length of the setae of the ogp. The following plants are visited by C. cyanopygus: Anacardiaceae: Schinus patagonicus; Asteraceae: Baccharis obovata, B. rhetinodes, Carduus thoermeri, Chrysanthemum sp., Hypochaeris radicata, Solidago chilensis, Taraxacum officinale; Berberidaceae: Berberis darwinii; Boraginaceae: Phacelia secunda, Phacelia sp.; Buddlejaceae: Buddleja globosa; Elaeocarpaceae: Aristotelia chilensis; Escalloniaceae: Escallonia alpina, E. virgata; Fabaceae: Cytisus scoparius, Lathyreus magellanicus, Medicago lupulina, Trifolium repens; Geraniaceae: Geranium sp.; Grossulariaceae: Ribes magellanicum; Oxalidaceae: Oxalis sp.; Proteaceae: Lomatia hirsuta; Rhamnaceae: Discaria articulata, D. chacaye; Rosaceae: Malus sp.; Thymelaeaceae: Ovidia andina; Verbenaceae: Diostea juncea. Distribution in Argentinean Patagonia: Humid to perhumid regions of southwestern Neuquén, western Río Negro and northwestern Chubut. Also found in Chile: from Valparaíso to Aysén. Examined material. ARGENTINA: Neuquén: 4 M, Lago Moquehue, 28 –I– 2012, R. González Vaquero (MACN). 1 M, Junín de los Andes, 7 –III– 1955 (MLPA). 2 M, Lanín: Pucará, I– 1953, Schajovskoi (MACN). 1 F, Lanín: Pucará, XII– 1953, Schajovskoi (MACN). 1 M, Lanín: Pucará, 25 –I– 1973, Schajovskoi (MACN). 4 F, Lanín: Pucará, XI– 1951, Schajovskoi (MLPA). 2 F, Lanín: Pucará, XI/ XII– 1952, Schajovskoi (MLPA). 3 F, Lanín: Pucará, 15 –XI– 1955, Schajovskoi (MLPA). 3 M, Lanín: Pucará, I– 1973, Fritz (MLPA). 1 M, Lanín: Pucará, 22 –I– 1957, A. Ogloblin (MLPA). 1 M, Lanín: Boquete del Lago Lolog, 25 –IV– 1964 (MACN). 2 M 1 F, Lanín: Lago Queñi, 19 –II– 2007, L. Compagnucci (MACN). 8 F, Lanín: Lago Queñi, 10 / 12 –XII– 1999, Montaldo, Devoto & Gleiser (FAUBA). 2 F, Lanín: Hua Hum, 18 –XII– 2010, Compagnucci & González Vaquero (MACN). 1 F, Lanín: Margen N Lago Lácar, 18 –XII– 2010, Compagnucci & González Vaquero (MACN). 6 F, Lanín: Lago Tromen 996m, 13 –I– 2003, G. Debandi (FAUBA). 2 F, Lanín: Cabecera E Lago Tromen, 10 / 14 –XII– 1998, Roitman, Montaldo & Devoto (MACN). 3 F, Lanín: Cabecera SE Lago Tromen, 12 –XII– 2003, Medán, Devoto & Torreta (FAUBA). 2 M, Camino Lagos Lolog-Curruhué, 7 –II– 2012, R. González Vaquero (MACN). 1 F, Cabecera E Lago Lolog, 6 –II– 2012, R. González Vaquero (MACN). 1 M, San Martín de los Andes, IV– 1964 (MACN). 1 M, San Martín de los Andes, 30 – III– 1964, M. Gentili (MACN). 1 M, San Martín de los Andes, 7 –I– 1941, M. Bridarolli (MLPA). 1 M, San Martín de los Andes, 25 –III– 1954 (MLPA). 1 F, 8 k N San Martín de los Andes 1000m, 16 / 22 –XI– 1997, C. & M. Vardy (BMNH). 3 F, Chapelco 1000m, 28 –XII– 1951, Schajovskoi (MLPA). 2 F, Nahuel Huapi: Puerto Arrayán, 20 –XII– 2010, Compagnucci & González Vaquero (MACN). 3 F, Nahuel Huapi: Villa Traful, 9 / 10 –XII– 2001, Medán, Montaldo & Devoto (FAUBA). 2 F, Nahuel Huapi: Villa Traful, 17 –XII– 2002, Devoto & Torretta (FAUBA). 3 F, Nahuel Huapi: Villa Traful, 17 –I– 2003, M. Devoto (FAUBA). 1 F, Nahuel Huapi: Quetrihué, 25 –X– 1999, D. Vázquez (MACN). 1 F, Nahuel Huapi: Villa La Angostura, 10 –I– 2007, P. Turienzo (MACN). 7 M 1 F, Nahuel Huapi: Isla Victoria, I– 1943, F. Monrós (MLPA). 3 F, Nahuel Huapi: Isla Victoria, 1943 (MLPA). 1 F, Nahuel Huapi: Isla Victoria, 15 –II– 1949, W. Wittmen (MLPA). Río Negro: 5 M 2 F, Nahuel Huapi (MACN). 10 M 1 F, Nahuel Huapi: Valle del Challhuaco, 24 /I– 2 / II– 2011, R. González Vaquero (MACN). 1 M, Nahuel Huapi: Cerro Catedral 1359m, 26 –I– 2011, R. González Vaquero (MACN). 1 M, Nahuel Huapi: Pampa Linda, 31 –I– 2011, R. González Vaquero (MACN). 1 M, Nahuel Huapi: Lago Los Moscos, 28 –I– 2011, R. González Vaquero (MACN). 1 F, Nahuel Huapi: Lago Mascardi, 21 –X– 1999, D. Vázquez (MACN). 1 M, Bariloche Ñireco, III– 1953, A. Ogloblin (MLPA). Chubut: 3 M, INTA Trevelin, 25 –I– 2006 / 14 –II– 2006, A–I. Gravel (MACN). 1 M, INTA Trevelin, 25 –I– 2006 / 14 –II– 2006, A–I. Gravel (IADIZA). 24 M 117 F, INTA Trevelin, 24 –X– 2005 / 16 –II– 2006, A– I. Gravel/M.E. Hollmann (PCYU). 1 M 2 F, INTA Trevelin, 22 –XI– 2006 / 3 –II– 2007, A–I. Gravel (MACN). 20 M 58 F, INTA Trevelin, 2 –XI– 2006 / 17 –II– 2007, A–I. Gravel/MIK. Gravel (PCYU). 4 M, INTA Trevelin, 1 –II– 2006, M.E. Hollmann (MACN). 3 M 16 F, INTA Trevelin, 31 –X– 2005 / 14 –II– 2006, M.E. Hollmann (PCYU). 2 M 1 F, INTA Trevelin, 7 / 19 –I– 2007, R. González Vaquero (MACN). 15 M 3 F, Lago Puelo: Near Intendencia 205m, 31 / XII– 6 / I– 1998, Malaise trap, C. & M. Vardy (MACN). 59 M 2 F, Lago Puelo: Near Intendencia 205m, 31 /XII– 6 / I– 1998, Malaise trap, C. & M. Vardy (BMNH). 6 M 6 F, Lago Puelo: Near Intendencia 205m, 31 /XII– 6 / I– 1998, yellow pan trap, C. & M. Vardy (BMNH). 1 F, Los Alerces: Lago Futalaufquen Forest track 500m, 14 –XII– 1997, C. & M. Vardy (MACN). 1 F, Los Alerces: Lago Futalaufquen 520m, 13 / 18 –XII– 1997, Malaise trap, C. & M. Vardy (BMNH). 1 F, Los Alerces: Villa Futalaufquen 520m, 13 / 18 –XII– 1997, C. & M. Vardy (BMNH). 1 F, Los Alerces: Río Desaguadero 2 k NE Villa Futalaufquen 520m, 18 –XII– 1997, yellow pan trap, C. & M. Vardy (BMNH). 3 M, Los Alerces: Puerto Limonao, II– 1959 (MLPA). CHILE: Los Lagos: 1 M, Chiloé Islotes de Puñihuil, 5 –II– 2001, C. Domínguez (IADIZA).Published as part of Gonzalez-Vaquero, Rocio Ana & Roig-Alsina, Arturo, 2013, Revision of the species of the bee genus Caenohalictus (Hymenoptera: Halictidae) occurring in Argentinean Patagonia, pp. 493-515 in Zootaxa 3670 (4) on pages 504-505, DOI: 10.11646/zootaxa.3670.4.5, http://zenodo.org/record/24864
Cenozoic marine turtle record from southern South America: New insights from the Miocene of Patagonia, Argentina
The study of marine turtles is a challenging topic because of the cosmopolitan nature of its fossil record and current distribution. Thus, it might be difficult to study and compare specimens, but sometimes even the smallest fragments or isolated occurrences might provide significant new information for the whole group. The Cenozoic fossil record of marine turtles (Pan-Chelonioidea) in South America is scarce with less than 10 published occurrences. The southernmost published record corresponds to a fragmentary and undetermined specimen of pan-dermochelyid (MPEF-PV 565) from the lower Miocene Gaiman Formation in Chubut province, Patagonia, Argentina. However, recent fieldwork has significantly increased the record of marine turtles from northeastern Chubut. The fossil record of pan-dermochelyids was increased with two findings from the Gaiman Formation: one fragmentary consisting of two ossicles (MPEF-PV 11360) and an almost complete carapace with associated postcranium (MPEF-PV 10918). Furthermore, also from the Gaiman Formation, a lower jaw of a pan-cheloniid (MPEF-PV 11382) was found. This group was also recently found in the upper Miocene Puerto Madryn Formation, represented by shell and postcranial remains (MPEF-PV 10929) and a skull (MPEF-PV 2577) coming from Gaiman or Puerto Madryn formations. In summary, we can conclude that: (1) the northeastern Chubut presents the most diverse and abundant record of chelonioid turtles in the Atlantic coast of South America; (2) the reported pan-cheloniid specimens expand the stratigraphic and geographic range of the group in the Atlantic coast in the Neogene; (3) the almost complete carapace of a pan-dermochelyid represents one of the most complete specimens of the group found up-to-date in the world. Thus, these new findings will provide valuable information on the anatomy, taxonomy, and diversity of the marine turtles that once populated the southwestern Atlantic sea and coasts of southern South America.Fil: Sterli, Juliana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Vlachos, Evangelos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Cuitiño, José Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; ArgentinaFil: Buono, Mónica Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; ArgentinaFil: Viglino, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina9th International Meeting on the Secondary Adaptation of Tetrapods to Life in WaterSan Vicente de Tagua TaguaChileAsociación Paleontológica ArgentinaAsociación Chilena de Paleontologí
Caenohalictus turquesa Rojas & Toro
Caenohalictus turquesa Rojas & Toro (Figs. 36, 42–44, 53–54, 61) Caenohalictus turquesa Rojas & Toro 2000: 192 –193. Holotype: male. Chile, Aysén, Aysén Chico. Museo Nacional de Historia Natural, Santiago. Diagnosis. Caenohalictus turquesa can be confused with C. iodurus with which it is sympatric. Males can be separated by the malar area, at most as long as 1 / 3 of mandibular width (Fig. 53), and features of the genitalia. Females of both species are difficult to separate, see characters in the key. Male genital capsule (Figs. 42–44): igp small, covered by several short, specialized setae, slender dorsal process of plate with a rounded apex, which reaches the penis valve; penis valve with outer basal tooth; ogp with 2–3 short setae, finely plumose apically, plate not greatly expanded dorsally; mgl half-moon shaped; va compressed, with its apical half tapering. Variation. Some males have the bluish highlights reported ubiquitously for the species by Rojas and Toro (2000), but most of them are completely green. Description. Female. Length, 6.2 –7.0 mm; forewing length, 4.9–5.4 mm. Color: Head and mesosoma dark green with a metallic reddish tint, more evident on head, mesoscutum and scutellum. Black apical band occupying more than half of clypeus, extending along the inner orbits up to the level of antennal sockets. Following parts dark brown: labrum, mandible except reddish apex, scape, pedicel, posterior surface of flagellum, coxa, femur, tibia, spot on center of outer part of hind basitarsus, basal half of the marginal zone of terga, and disc of sterna. Anterior surface of flagellum, mid and hind tarsi, and apices of sterna light brown or yellow. Tegula and apical half of marginal zone of terga translucid. Wings light amber with light brown veins and pterostigma, costal and radial veins dark brown. Pubescence: Whitish. Compound eyes with hairs as long as MOD. Head with erect, plumose hairs; those on paraocular area and vertex as long as 1.5–2.3 times MOD; hairs on lower part of genal area 1.6–3.2 MOD. Thorax with plumose hairs on mesoscutum (0.8–1.4 times MOD), much longer on pleura (2.3–3.6 times MOD) and metanotum (up to 2.5 times MOD). Lateral side of propodeum with very short plumose hairs (0.1–0.2 times MOD) and much longer hairs (up to 2.8 times MOD). Vestiture dense on legs. Terga with hairy marginal zones; disc of terga with very short erect hairs, laterally with some longer hairs with their apices directed latero-posteriorly. S 2 – S 5 with long, short-barbed hairs, with their apices directed posteriorly. Sculpture: Labrum with verrucose, median, basal elevation (Fig. 61). Lower paraocular area with strong punctures, separated by 0.5–1 PD. Base of clypeus and supraclypeal area with punctures separated by 2 PD; rest of face with punctation finer and sparser. Punctures on disc of mesoscutum separated by 5–6 PD, not easily seen due to sculpture, sparser on disc of scutellum and metanotum. Dorsal surface of metapostnotum finely microareolate as propodeum. Surface between punctures equally reticulate throughout the body, finer on clypeus, supraclypeal area and sterna; marginal zones on metasoma substrigulate. Structure: Head broader than long, 1.27–1.59: 1. Proportion of lower to upper interocular distance 0.89–0.99: 1. Clypeus longer than broad, 1.51–1.82: 1. Proportion of interantennal to antennocular distance, 0.86–0.88: 1. Proportion of posterior interocelar to ocelo-ocular distance, 0.92–0.97: 1. Inner hind tibial spur pectinate, with two or three paddle-like teeth, the one which is nearer the apex bent down to the axis (Fig. 36). Comments. Females have the malar area at most as long as 1 / 4 of the mandibular width, and the mid and hind basitarsi are light brown or yellow, with a dark brown spot at midlength of the outer part of the hind basitarsus. All specimens have the apical half of the marginal zone of the terga translucid. The female of C. turquesa is described here for the first time. This species visits flowers of Discaria trinervis and Retanilla patagonica (Rhamnaceae). Distribution in Argentinean Patagonia. Arid to subhumid regions of Río Negro, Chubut and Santa Cruz. Also found in Mendoza (Argentina) and in Chile: Aysén. Examined material. ARGENTINA: Mendoza: 1 M, Cerro Cacheuta 1400m, XII– 2005, G. Debandi (IADIZA). 3 F, Río Blanco, XII– 1996, D. Medán (FAUBA). 1 F, Villavicencio, 20 –X– 1941 (MLPA). Río Negro: 1 M, Valcheta, II– 1924, M. Gómez (MACN). 1 F, Ñorquinco, 5 –II– 1994, A. Roig Alsina (MACN). Chubut: 1 F, Comodoro Rivadavia, X– 2003, M.E. Arce (MACN). 1 F, Rada Tilly, 24 –X– 1992, M.E. Arce (FAUBA). 1 F, Cañadón Ferrais, 5 –X– 1992, M.E. Arce (FAUBA). 2 F, Cañadón Ferrais, 21 –X– 1995, M.E. Arce (FAUBA). 11 F, Near Los Antiguos (Santa Cruz) S 46 º 37.044 ’ W071º 16.133 ’, 17 –XII– 2005 / 1 –I– 2006, pan trap, A–I. Gravel (PCYU). 2 F, Near Gab. Costa S 44 º 57.841 ’ W070º 25.355 ’, XI– 2005, pan trap, A–I. Gravel (PCYU). 2 F, E of Las Heras, 17 / 27 –XI– 2003, pan trap, L. Packer (PCYU). 2 M 6 F, Golfo San Jorge, 31 –X– 1906, C. Ameghino (MACN). Santa Cruz: 13 M, El Pluma Ruta 43, 24–I– 1994, A. Roig Alsina (MACN). 4 M, Ruta 40 Arroyo Feo, 27 –I– 1994, A. Roig Alsina (MACN). 8 M 2 F, Río Pinturas Cueva de las Manos, 28 –I– 1994, A. Roig Alsina (MACN). 1 M, Gobernador Gregores 350m, 12 / 13 –II– 1998, C. & M. Vardy (MACN). 2 M, Gobernador Gregores 350m, 12 / 13 –II– 1998, C. & M. Vardy (BMNH). 1 F, Los Antiguos, 18 –XI– 2006, pan trap (PCYU). 2 F, 43km E of Perito Moreno, S 46 º 26.057 ’ W070º21.843, 540m, 16 –XI– 2003, L. Packer (PCYU). 3 F, 23km W of Las Heras, S 46 º 36.827 ’ W069º38.394, 382m, 16 –XI– 2003, L. Packer (PCYU). 1 F, 25km S Los Antiguos – 46.87972 –71.79472, 18 –XI / 24 –XII– 2006, pan trap, A–I. & M. Gravel & L. Packer (PCYU). 33 F 27 M, 25km E Los Antiguos, S 46 º 37 ’ 187 ’’ W 71 º 18 ’ 322 ’’, 250m, 1 –III– 2007, blue van trap, A–I. & M. Gravel (PCYU).Published as part of Gonzalez-Vaquero, Rocio Ana & Roig-Alsina, Arturo, 2013, Revision of the species of the bee genus Caenohalictus (Hymenoptera: Halictidae) occurring in Argentinean Patagonia, pp. 493-515 in Zootaxa 3670 (4) on pages 511-512, DOI: 10.11646/zootaxa.3670.4.5, http://zenodo.org/record/24864
El Tlacuache Núm. 400 (2010). 400 Año 10 (2010) enero. El Tlacuache
LO QUE SUCEDÍA UN SIGLO ATRÁS Desgranando la memoria en Xochicalco por Elvira Pruneda. -Visitando al médico por Ana Cecilia Sánchez M
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