3,600 research outputs found
Pygodiscodon gurupi Biffi & Constantin 2018, sp. nov.
No full text<i>Pygodiscodon gurupi</i> sp. nov. <p>(Figs 2, 8, 13, 20–22, 36, 44–46)</p> <p> <b>Type locality.</b> Brazil, Maranhão, Bom Jardim, Reserva Biológica do Gurupi.</p> <p> <b>Type material.</b> HOLOTYPE:, ‘ Brasil (MA), Bom Jardim | REBIO–Res. Biol. Gurupi | Armad. Luminosa Suspensa || 17–27.I.2010, F. Limeira- | de-Oliveira, J. T. Câmara | & O.A. Silva cols. || HOLOTYPE | Pygodiscodon | gurupi | Biffi & Constantin’ (CZMA). PARATYPES: ‘ Brasil (MA), Bom Jardim | REBIO–Res. Biol. Gurupi | Armad. Luminosa Base || 17–27.I.2010,A.A.T. | Sousa, M. B.Aguiar Neto | & J. O.A. Silva cols. || MZSP 10251 || PARATYPE | Pygodiscodon | gurupi | Biffi & Constantin’ (1 MZSP 10251, 1 CZMA); ‘ Brasil (MA), Bom Jardim | REBIO–Res. Biol. Gurupi | Armad. Luminosa Base ||, 01–05.I.2010, M.M. | Abreu, E. A. S. Barbosa & | A. A. Santos cols. || MZSP 10252 || PARATYPE | Pygodiscodon | gurupi | Biffi & Constantin’ (1 ♀ MZSP 10252).</p> <p> <b>Description.</b> Body length: 6.1–7.0 mm. Head black; frons, clypeus and base of mandibles light brown to testaceous, slightly translucent; apex of mandibles light brown; palpi dark brown. Antennae black; first antennomere slightly lighter at apex and antennomeres X–XI sometimes light brown to yellowish-brown. Pronotum orange-yellow with wide medial black patch stretching longitudinally from anterior to posterior margins. Elytra dark brown; thorax, legs and abdomen dark brown and apex of tergite VIII reddish-brown.</p> <p> <i>Male</i> (Fig. 2). Head as long as wide, broadly rounded behind eyes, densely pubescent; occipital region and frons convex; clypeus wide, emarginated anteriorly. Eyes rounded, rather prominent. Maxillary palpi elongate, last palpomere slender and slightly securiform. Antennae (Fig. 8) long, slightly serrate and compressed dorsoventrally; dorsal surface of antennomeres V–XI with narrow, straight and smooth longitudinal line. Pronotum densely pubescent, transverse, 1.6 times wider than long; lateral margins slightly emarginated, explanate upwards and shortly notched before basal angles. Elytra finely rugulose, densely covered with erect greyish setae; each elytron 5.2 times longer than wide. Legs slender; metathoracic coxae (Fig. 13) with unciform backwards-pointing projections; mesothoracic femur arched; tarsomeres increasing in size from pro- to metathoracic legs; inner claw of prothoracic tarsus broadly lamellate at base; meso- and metathoracic tarsal claws with sharp protruding tooth. Last abdominal ventrite (Fig. 20) bilobed, broadly rounded posteriorly; abdominal tergite VIII (Figs 20–22) elongate, conical and strongly constricted posteriorly with broad, elliptical, truncate apical projection bearing two contiguous glandular openings at apex and further setose dorsal flap-like projection. Aedeagus (Figs 44–46): ventral wall of tegmen with two broad, rounded lobes pointing ventrally and centrally with tuft of long setae at apex; parameres dorsally, shorter than median lobe bearing long and thick apical setae; median lobe broad and membranous, shorter than internal sac; internal sac with two pairs of spine-like sclerites; ventral sclerites gradually acute and curved ventrally, protruding slightly beyond apex of tegmen; dorsal sclerites shorter than ventral sclerites, slightly curved dorsally and laterally and bearing preapical lateral tooth.</p> <p> <i>Female</i>. Similar to male but antennae lacking longitudinal lines; pronotum not notched laterally; tarsal claws simple; abdominal ventrite VII (Fig. 36) 2.4 times wider than long, not divided, lateral margins broadly rounded, distal margin with short and broad projecting tip; abdominal tergite VIII broad and simple.</p> <p> <b>Differential diagnosis.</b> Colour pattern similar to <i>P. monoceros</i> sp. nov. and <i>P. touroulti</i>. <i>Pygodiscodon gurupi</i> sp. nov. differs in the antennal lines narrow and straight, present on antennomeres VI–XI in males; metathoracic coxae with unciform backwards-pointing projections in males; last abdominal tergite of males with short, broad and truncate projection and flap-like dorsal projection.</p> <p> <b>Etymology.</b> The specific epithet is a noun in apposition. It is derived from the name of the reserve where the species was collected, an area continuously threatened by land conflicts and illegal agriculture, livestock and timber trading.</p> <p> <b>Distribution.</b> Brazil: Maranhão (Fig. 59).</p>Published as part of <i>Biffi, Gabriel & Constantin, Robert, 2018, Taxonomic revision of Pygodiscodon (Coleoptera: Cantharidae), pp. 77-90 in Acta Entomologica Musei Nationalis Pragae 58 (1)</i> on pages 81-84, DOI: 10.2478/aemnp-2018-0008, <a href="http://zenodo.org/record/3676782">http://zenodo.org/record/3676782</a>
The Quasi-Liquid Layer of ice revisited: the role of temperature gradients and tip chemistry in AFM studies
No full textIn this work, we present new results of atomic force microscopy (AFM) force curves over pure ice at different temperatures, performed with two different environmental chambers and different kinds of AFM tips. Our results provide insight to resolve the controversy on the interpretation of experimental AFM curves on the ice–air interface for determining the thickness of the quasi-liquid layer (QLL). The use of a Mini Environmental Chamber (mEC) that provides an accurate control of the temperature and humidity of the gases in contact with the sample allowed us for the first time to get force curves over the ice–air interface without jump-in (jump of the tip onto the ice surface, widely observed in previous studies). These results suggest a QLL thickness below 1 nm within the explored temperature range (−7 to −2 ∘C). This upper bound is significantly lower than most of the previous AFM results, which suggests that previous authors overestimate the equilibrium QLL thickness, due to temperature gradients, or indentation of ice during the jump-in. Additionally, we proved that the hydrophobicity of AFM tips affects significantly the results of the experiments. Overall, this work shows that, if one chooses the experimental conditions properly, the QLL thicknesses obtained by AFM lie over the lower bound of the highly disperse results reported in the literature. This allows estimating upper boundaries for the QLL thicknesses, which is relevant to validate QLL theories and to improve multiphase atmospheric chemistry models.Fil: Gelman Constantin, Julián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Gianetti, Melisa Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Longinotti, María Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Corti, Horacio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentin
Authority and Personality in M.M. Bakhtin\u27s Author and Hero in Aesthetic Activity
No full textM.M. Bakhtin\u27s fundamental claim in his seminal essay Author and Hero in Aesthetic Activity situates verbal action as the most essential constituent of human personality. A careful reading of this text reveals important truths about the relationship between free individual personhood and the nature of the speech utterance. Bakhtin connects the human experience of speech to the life and person of Jesus Christ emphasizing the incarnation and the Trinitarian view of God as essential principles for understanding the creative power of the word and consequent liabilities. Bakhtin develops these theological and philosophical coordinates around a discussion of the author-hero relationship in the novel asserting that the verbal utterance is creatively involved in building and sustaining the inner personhood of those it addresses. Bakhtin\u27s critical conclusion substantiates that from whom a word is received, and to whom the spoken word appeals has weighty influence on the type and character of human personality, and that personality\u27s relationship to authority
Documento Bancario, M.M. Mayence & Cie., Paris, 1908 Junio 14
No full textabstract: Handwritten letter from Rubén Darío to M.M. Mayence & Cie, informing about one meeting with the Spain's King and the location of Nicaraguan legation in Madrid.The original Rubén Darío Papers 1882-1945 (MSS-339) are located at ASU Libraries Archives & Special Collections. For more information about visiting the collection see http://hdl.handle.net/2286/L.A.0.The top margin has the hand written word "Particular" ("Private, Personal").In the left top margin apparently are written the words "Documento 267" ("Documento 267").Heading the letter there is a reference to a person called Santiago, whose last name hasn't been identified
M.M. Arkas: through the correlation between professional and patriotic
No full textУ статті розглянуто проблему співвідношення у творчому спадку М.М. Аркаса,
композитора, історика, громадського діяча, професійних і патріотичних засад. Проаналізовано
життєдіяльність М.М. Аркаса та виявлені основні чинники, що вплинули на формування його
світоглядних уявлень і врешті сприяли становленню у представника грецького роду українського
менталітету.В статье рассматривается проблема соотношения в творческом наследии Н.Н. Аркаса, композитора,
историка и общественного деятеля, профессионализма и патриотизма. Анализируется жизнедеятельность
Н.Н. Аркаса и выявляются основные компоненты, что способствовали формированию его духовного космоса
и становлению у представителя греческого рода украинского менталитета.The article examines the issues of rating the professional and patriotic constituents in the creative legacy of
M.M. Arkas, - the composer, historian and social activist. By researching into the life of M.M. Arkas, the author uncovers
the key factors and events that influenced the formation of his spiritual cosmos and thus eventually conduced
to moulding the Ukrainian mentality in a member of the Greek kinship
M.M. Arkas: through the correlation between professional and patriotic
No full textУ статті розглянуто проблему співвідношення у творчому спадку М.М. Аркаса,
композитора, історика, громадського діяча, професійних і патріотичних засад. Проаналізовано
життєдіяльність М.М. Аркаса та виявлені основні чинники, що вплинули на формування його
світоглядних уявлень і врешті сприяли становленню у представника грецького роду українського
менталітету.В статье рассматривается проблема соотношения в творческом наследии Н.Н. Аркаса, композитора,
историка и общественного деятеля, профессионализма и патриотизма. Анализируется жизнедеятельность
Н.Н. Аркаса и выявляются основные компоненты, что способствовали формированию его духовного космоса
и становлению у представителя греческого рода украинского менталитета.The article examines the issues of rating the professional and patriotic constituents in the creative legacy of
M.M. Arkas, - the composer, historian and social activist. By researching into the life of M.M. Arkas, the author uncovers
the key factors and events that influenced the formation of his spiritual cosmos and thus eventually conduced
to moulding the Ukrainian mentality in a member of the Greek kinship
M.M. Arkas: through the correlation between professional and patriotic
No full textУ статті розглянуто проблему співвідношення у творчому спадку М.М. Аркаса,
композитора, історика, громадського діяча, професійних і патріотичних засад. Проаналізовано
життєдіяльність М.М. Аркаса та виявлені основні чинники, що вплинули на формування його
світоглядних уявлень і врешті сприяли становленню у представника грецького роду українського
менталітету.В статье рассматривается проблема соотношения в творческом наследии Н.Н. Аркаса, композитора,
историка и общественного деятеля, профессионализма и патриотизма. Анализируется жизнедеятельность
Н.Н. Аркаса и выявляются основные компоненты, что способствовали формированию его духовного космоса
и становлению у представителя греческого рода украинского менталитета.The article examines the issues of rating the professional and patriotic constituents in the creative legacy of
M.M. Arkas, - the composer, historian and social activist. By researching into the life of M.M. Arkas, the author uncovers
the key factors and events that influenced the formation of his spiritual cosmos and thus eventually conduced
to moulding the Ukrainian mentality in a member of the Greek kinship
Environmental chamber with controlled temperature and relative humidity for ice crystallization kinetic measurements by atomic force microscopy
No full textThe present work describes the development of an environmental chamber (EC), with temperature and humidity control, for measuring ice growth kinetics over a substrate with an atomic force microscope (AFM). The main component of the EC is an AFM fluid glass cell. The relative humidity (RH) inside the EC is set by the flow of a controlled ratio of dry and humid nitrogen gases. The sample temperature is fixed with an AFM commercial accessory, while the temperature of the nitrogen gas inside the EC is controlled by circulating cold nitrogen vapor through a copper cooler, specially designed for this purpose. With this setup, we could study the growth rate of ice crystallization over a mica substrate by measuring the force exerted between the tip and the sample when they approach each other as a function of time. This experimental development represents a significant improvement with respect to previous experimental determinations of ice growth rates, where RH and temperature of the air above the sample were determined far away from the ice crystallization regions, in opposition to the present work
Plant introduction, conservation and enrichment of biodiversity in M.M. Gryshko National Botanical Garden of the NAS of Ukraine
No full textThe paper deals with the main achievements of scientists of M.M. Gryshko National Botanical Garden of the NAS of Ukraine (NBG) in scientific, conservation, cultural and educational activities. The results of researches on biodiversity, conservation, plants protection, introduction, acclimatization and selection, allelopathy, medical botany, landscape design, bioindication and hemosystematycs are given. It is noted that over 14 thousands species, forms and varieties of plants, are collected in NBG, and the most unique collections attributed to the objects of national heritage. Breeders have obtained more than 300 certificates or author ship on plant varieties. NBG carries out extensive international cooperation, several new exposition of plant collection appeared in Botanical Garden. In recent years the achievements of NBG scientists were awarded by two State Awards in the field of science and technology of Ukraine
Perception of M.M. Bakhtin in the West: some general remarks
No full textIn the present work is a translation of the short introductory work of Turin’s Professor Roberto Salizzoni dedicated to the analysis of art of M.M. Bakhtin and some reflections of the author of the translation, which led him to assess creativity Russian thinker, present in this book of the Italian scientist. First of all, the author of the translation does not agree with the disparaging assessment of creativity of Bakhtin how unoriginal and more abounding plagiarism. The author of the translation argues injustice exaggerated influence on the concept of Bakhtin from literary trends and ideas, including by the media those of the so-called “circle of Bakhtin”. The necessity of considering of creativity of Russian thinker as philosophical, creativity independent and original. Such a conclusion can fail and approval of Neokantian origin of “philosophical roots” of Bakhtin’s concept of philosophy of culture
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