118,307 research outputs found
Sperimentazione e tecniche diagnostiche per le murature. Metodi di indagine: prove distruttive e non distruttive
No full textInfluência de diferentes substratos na emergência e crescimento de plantas de feijão de porco (Canavalia ensiformes L.).
No full textCom o objetivo de verificar os que proporcionassem melhores condições para a germinação e emergência de plântulas de feijão de porco (Canavalia ensiformes L.)
Deutonura gibbosa Porco, Bedos & Deharveng, 2010, sp. nov.
No full textDeutonura gibbosa sp. nov. Figs 1, 2–6, 8; Tab. 1 Type material. Holotype male and 90 paratypes, France, Isère, Montaud, along the road from Saint-Quentinsur-Isère to Montaud. 3.xi. 2007, mixed broadleaf forest, litter, berlese. L. Deharveng & A. Bedos leg. (38 – 036) (Alt. 500 m, X 5.557634, Y 45.276590). Deposited in MNHN (holotype, 80 paratypes) and in ZIWU (10 paratypes). Other material. France. Ain: Anglefort, le Grand Colombier, 2 ex, eastern slopes, 13.v. 2001, beech forest, litter, berlese, L. Deharveng & A. Bedos leg. (01–012); Culoz, le Grand Colombier, 4 ex., 13.v. 2001, beech-fir forest, litter, berlese, L. Deharveng & A. Bedos (01–013). Haute-Savoie: Cordon, 2 ex., 1 xii. 1977, beech forest, litter, L. Deharveng (74–160); Dingy-Saint-Clair, Nanoir, 3 ex., 10.v. 1983, beech and oak forest, litter, L. Deharveng leg. (74–184); Les Clefs, La Tournette, 2 ex., 27.ix. 1976, beech forest, litter, L. Deharveng leg. (74–151); Saint-Jorioz, montagne du Semnoz, 2 ex., 23.vii. 1973, small shaft with névé, in daylight, (74 –061); ibid., crête du Tertère, 9 ex., 20.viii. 1979, under Sorbus, litter, L. Deharveng leg. (74–169); ibid., 14 ex., 1.ix. 1980, on lapiez, spruce forest, litter, L. Deharveng leg. (74–170); Sillingy, Chaumontet, Montagne d'Age, at a small spring, 3 ex., 23.vii. 1974, in moss, L. Deharveng leg. (74–148); Vallorcine, Col des Montets, 3 ex., 1.ix. 1980, larch and Rhododendron forest, litter, L. Deharveng leg. (74–171). Hautes-Alpes: Aspres-sur-Buech, 8 ex., 4.xi. 2007, beech forest, litter, berlese, L. Deharveng & A. Bedos leg. (05–035); La Faurie, Bois de Longeagnes, 1 ex., 13.v. 1981, fir forest, litter, J. Monbayé leg. (05–006); Le Monetier-les-Bains, Le Casset, vallon du Petit Tabuc, 1 ex., 19.vii. 1997, larch litter, berlese, F. Brouquisse leg. (05–027). Isère: La Balme-les-Grottes, above the village, 2 ex., 13.v. 2001, oak forest, litter, berlese, L. Deharveng & A. Bedos leg. (38 –026); Le Sappey-en-Chartreuse, Col de Porte, 12 ex., 5.viii. 1977, L. Deharveng leg. (38 – 038); Saint-Laurent-du-Pont, Pont Saint Bruno, 13 ex., 3.xi. 2007, litter, berlese, L. Deharveng & A. Bedos leg. (38 –028); Saint-Pierre-de-Chartreuse, Pont des Cottaves, 1 ex., 3.xi. 2007, spruce forest, litter, berlese, L. Deharveng & A. Bedos leg. (38 –032). Savoie: Aillon-le-Jeune, Col des Près, 20 ex., 1.v. 1982, beech forest, litter, berlese. L. Deharveng leg. (73 –038); Bourg-Saint-Maurice, Beaufortin, vallon de la Neuva, 1 ex., 24.ix. 1976, lichen, moss on rock, soil in the alpine zone, L. Deharveng leg. (73 –021); Saint-Christophe, near grotte de Fontaine Noire, 1 ex., 12.vii. 1984, beech forest, litter, berlese, L. Deharveng leg. (73 –053). Italy. Liguria: Imperia: Cossio di Arroscia, near Ponte di Nava, 2 ex., 15.xii. 1982, beech forest, litter, L. Deharveng leg. (ITA–015). Lombardia: Bergamo: Oneta, Valle de Seriana, Monte Alben, near Zambla, 31 ex., 14.viii. 1997, beech mixed with a few spruce, litter, L. Deharveng & A. Bedos leg. (ITA–097, –098, –099); Brescia: Col de Vivione, northen slope, 42 ex., 14.viii. 1997, Pinus uncinata, birch and Rhododendron, litter, berlese, L. Deharveng & A. Bedos leg. (ITA– 100); Brescia, foot of Col de Vivione, Valle Paisco, 16 ex., 14.viii. 1997, Castanea, litter, berlese, L. Deharveng & A. Bedos leg. (ITA– 102). Piemonte: Cuneo: Garessio, Capello, road to Pamparato, 23 ex., 15.xii. 1982, beech forest, litter, L. Deharveng leg. (ITA–017); Pamparato, Valcasotto, 6 ex., 2.x. 1979, beech forest, M. Curti leg. (ITA–002); Ponte di Nava, below Bricco, 120 ex., 15.xii. 1982, chestnut forest, litter, L. Deharveng leg. (ITA–013). Trentino-Alto Adige: Bolzano: above Ora, Castel Vetere hill, 1 ex., 15.viii. 1997, oak forest, litter, berlese, L. Deharveng & A. Bedos leg. (ITA– 121); Trento: Sdruzzina, Passo Fittanze della Sega, 27 ex., 12.ix. 2002, beech forest, litter, berlese, L. Deharveng & A. Bedos leg. (ITA– 139). Veneto: Belluno: Cortina d'Ampezzo, Falcade, east of Passo San Pellegrino, 1 ex., 15.viii. 1997, beech, by hand, L. Deharveng & A. Bedos leg. (ITA– 124); Belluno: Bosco de Cansiglio, near Spert, 1 ex., 16.viii. 1997, beech, litter, berlese, L. Deharveng & A. Bedos leg. (ITA– 135). Slovenia. Lokev: Divaca, Vilenica cave, 5 ex., 27.vi. 1981, E. Christian leg. (SLN–Christ001). Switzerland. Vaud: Bex, Solalex, massif des Diablerets, 1 ex., 1.viii. 1982, fir and spruce forest, litter, L. Deharveng leg. (SUI –004). Etymology. The species name gibbosa is a latine word meaning humped, in reference to the prominent Di tubercle of Abd. V of the new species. Description. Length: 1–2 mm. Color: deep blue to light blue. Habitus usual for the genus, rather parallel. Abd. VI completely hidden under Abd. V, deeply bilobed. All tubercles well developed on tergites, indicated by reticulations and tertiary granules without papillae, but with strong secondary granules especially on Abd. V. All dorsal chaetae integrated in tubercles (no free chaetae). Dorsal ordinary chaetae of four types: long macrochaetae, short macrochaetae, mesochaetae and microchaetae. Long macrochaetae long, robust, thick, finely and sparsely rugose, sheathed, rounded-ogival at the apex, except the most lateral ones pointed apically. Short macrochaetae similar to long macrochaetae, but shorter. Mesochaetae similar to ventral chaetae, thin and acuminate, short, smooth. Microchaetae morphologically similar to mesochaetae but very short, limited to Oca in some specimens. S-chaetae of tergites thin and long but much shorter than neighbour long macrochaetae (slightly less than 1 / 2 as long as nearby macrochaeta on Abd. V). S-chaetae of thoracic tubercles De antero-internal to De 1 and equally distant to De 1 and De 2. Antennae typical of the genus. Ant. IV with S-chaetae thickened, S 1 and S 2 thinner than others; apical vesicle trilobed. Mouthparts reduced, mandible thin and tridentate, maxilla styliform. Labrum with ventrodistal sclerification rounded and truncated apically, with several minute denticles on apical edge. Labium chaetotaxy as in Fig. 4, with chaetae A and C subequal, three times as long as D. Eyes black, 2 + 2. Head chaetotaxy and tubercles as in Fig. 2 and Tab. 1. Tubercle Af with elementary tubercles DE and EE present, two elementary tubercles between chaetae A and no granular plate between chaetae A and B. Tergite chaetotaxy and tubercles as in Fig. 2 and Tab. 1. Tubercles Di of Abd. V fused into a large, strongly bilobed axial tubercle overhanging Abd. VI. Chaetae Di 1, Di 2 and Di 3 in elongated triangle with Di 1 –Di 2 about 2.5 times shorter than Di 1 –Di 3. Di 1: very long, bent macrochaeta, Di 2: long macrochaeta 2 / 3 – 3 / 4 as long as Di 1, and Di 3: short macrochaeta 3 times shorter than Di 2 in adult. Tergite pseudopora (arranged as 0,1,1/1,1,1,1,?1,0 per half tergite) and muscular insertions shown on Fig. 2. Sternite chaetotaxy as in Fig. 6 and Tab. 1. Leg chaetotaxy as in Fig. 5 and Tab. 1. No ventral tenent hairs on tibiotarsi, B 4 and B 5 moderately long, not or slightly overpassing apex of tibiotarsi. Claw basally granulated, without inner tooth. Cephalic chaetotaxy Mc Ocp me or mi Oca Di + De + 4 ML Di 1,De 1 Mc Di 2,De 2 DL + 6 ML DL 1,DL 5 Mc DL 2,DL 3,DL 4,DL 6 L + So + 8 -(9) ML So 1,L 1,L 4 Mc or me L 2 me (L 3),So 3 to 6 Vi of head 6 Ve of head 10 or 11 Labrum 4 /2,4 Labium 10, 0x Ant. I 7 Ant. II 12 Ant. III 17 + 5 s Ant. IV dorsally 12 mou+or+i+ 8 s Postcephalic chaetotaxy * Vel present, sometimes as an uneven mesochaeta Male without modified chaetae ventrally. Remarks. Deharveng (1979) recognized three forms in the subspecies Deutonura plena plena (Stach, 1951), that was subsequently renamed D. deficiens sylvatica Deharveng, 1982 after it was clearly shown that D. plena was actually a species of northeastern Europe. The type material from Ardèche near the Rhône valley in France corresponds to the form B characterized by a pigmented body and the presence of 8 chaetae L on Abd. IV. Specimens from Alps cited by Deharveng (1979), which are now placed in the new species D. gibbosa, also correspond to the form B. Indeed, D. gibbosa sp. nov. shares most chaetotaxic and tuberculisation features with the form B of D. deficiens sylvatica, widespread in southwestern France and northwest of the Iberian peninsula, and recorded from Sardinia by Dallai (1983). The new species is readily separated from it by the morphology of the dorso-internal tubercle of Abd. V, conspicuously bilobed, larger and more elongate, hiding most of Abd. VI in dorsal view. This development of dorso-internal tubercle of Abd. V is associated to a chaetotaxic re-arrangement, with Di 1 and Di 2 shift backwards in the new species compared to D. d. sylvatica (Figs. 7, 8). This difference holds for all specimens of the form B examined from the cited regions, including those from Sardinia. The ratio of chaetae Di on Abd. V is also different, with Di 2 2 / 3 – 3 / 4 as long as Di 1 and almost 3 times as long as Di 3, versus Di 2 about half as long as Di 1 or less, and about 2 times as long as Di 3 in types of D. d. sylvatica. Distribution and ecology. With a distribution ranging from southwest to eastern Alps and southern Jura, D. gibbosa sp. nov. is one of the most widespread species of the genus. It replaces D. deficiens sylvatica to the east of the Rhône valley (Fig. 1). Given the frequency of the new species in the Alps, it is surprising that the species seems to have been overlooked by previous authors. For instance, none of the Deutonura cited from Austria by Christian (1987) could correspond to D. gibbosa sp. nov. It might be that the species, while present in the whole massif, may be replaced in some large areas like Austria by other Deutonura species, as it seems to be the case in the most southwestern regions of the Alps. D. gibbosa sp. nov. is frequent in forest litter and rotten wood of any kind of forest, even disturbed, from 300 to 1500 m a.s.l.Published as part of Porco, David, Bedos, Anne & Deharveng, Louis, 2010, Description and DNA barcoding assessment of the new species Deutonura gibbosa (Collembola: Neanuridae: Neanurinae), a common springtail of Alps and Jura, pp. 59-68 in Zootaxa 2639 on pages 60-65, DOI: 10.5281/zenodo.19851
L’influenza delle tamponature sulla risposta non lineare di edifici esistenti in c.a. - Caso distudio
No full textDa alcuni decenni la comunità scientifica è impegnata ad identificare adeguatamente l‟influenza dei telai tamponati sul comportamento sismico delle strutture in c.a. sia esistenti che di nuova realizzazione. Recentemente in tale ambito, sono state proposte alcune estensioni del metodo N2 per valutare il contributo apportato dalla tamponatura sulla risposta strutturale. La presente memoria, illustra l‟analisi di un edificio esistente ubicato in Calabria, risalente agli inizi degli anni ‟70, progettato per resistere alle sole azioni verticali. Al fine di raccogliere i dati necessari per svolgere le verifiche di sicurezza e raggiungere il Livello di Conoscenza richiesto dalle norme, è stata sviluppata sull‟immobile un‟ampia campagna di indagine sperimentale che ha permesso di valutare la condizione e la qualità degli elementi strutturali e delle pareti di tamponatura. Su modelli strutturali dell‟edificio relativi sia alla struttura nuda che tamponata, sono state effettuate diverse analisi statiche non lineari, per valutare l‟influenza dei pannelli murari sui meccanismi di collasso. In particolare, per valutare l‟effetto delle tamponature sulla risposta strutturale globale è stata condotta un‟analisi di sensibilità assegnando Fattori di Confidenza (FC) diversi alle caratteristiche meccaniche dei pannelli murari
Influência de diferentes substratos na emergência e crescimento de plantas de feijão de porco (Canavalia ensiformes L.)
No full textForam testados diferentes substratos, com o objetivo de verificar os que proporcionassem melhores condições para a germinação e emergência de plântulas de feijão de porco (Canavalia ensiformes L.). Avaliaram-se aos 30, 60, 90 e 120 dias após a semeadura, a percentagem de emergência das plântulas (G), o Ãndice de velocidade de germinação (IVG) e o crescimento das plântulas. O delineamento estatÃstico utilizado foi de blocos ao acaso, com seis substratos (areia), (solo), (areia + solo), (solo + esterco de bovino), (areia + esterco de bovino) e (areia + solo + esterco de bovino). Foram realizadas avaliações de emergência das sementes, do Ãndice de velocidade de germinação das plântulas e do crescimento. Verificaram-se diferenças significativas nos percentuais de emergência entre os tratamentos no perÃodo de observação. Os substratos compostos com areia, solo e esterco apresentaram as maiores taxas de emergência e Ãndice de velocidade de emergência. Em relação ao desenvolvimento do sistema radicular do feijão de porco, verificou-se que no substrato com solo, todas as plantas apresentaram os maiores valores em termos de comprimento. O crescimento em altura do feijão de porco foi influenciado pelos diferentes substratos analisados.
Palavras-chave: germinação; semente; plântula; feijão de porco (Canavalia ensiformes L.).
ABSTRACT
We tested different substrates, in order to verify that provide better conditions for germination, seedling emergence and the vegetative development of jack bean (Canavalia ensiformis L.). We evaluated 30, 60, 90 and 120 days after sowing, the percentage of seedling emergence (G) and the speed of germination of seedlings (GSI) and the growth of seedling. The statistical design was randomized blocks with six substrates (sand), (soil), (sand + soil), (soil + cattle manure), (sand +cattle manure) and (sand + soil + cattle manure). Evaluations were made of seed emergence and speed of germination of seedlings. There were significant differences in percentages among treatments in the emergency period. Substrates composed of sand, soil and manure had the highest rates of emergence and emergence speed index. Regarding the development of the root system of Canavalia ensiformis (Jack bean), it was found that the substrate with the soil, all plants had the highest values in terms of length. The height growth of Canavalia ensiformis was influenced by the different substrates analyzed. Among the substrates, the better the (sand + soil + cattle manure), which increased the growth of seedlings.
Keywords: germination; seedling; jack bean; Canavalia ensiformis L.</div
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
PRODUÇÃO DE BIOMASSA E TEOR DE NUTRIENTES DO FEIJÃO-DE-PORCO (Canavalia ensiformis (L.) DC.) EM REFLORESTAMENTO NO ESTADO DO PARÁ
No full textABSTRACT: The objective of this study was to evaluate biomass production and nutrient content of jack bean (Canavalia ensiformes (L.) DC.) as a green manure intercropped with paricá (Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby). The experiment was carried out in an experimental area at the Vigia municipality (Pará state, Brazil). The jack bean was sown between rows of planted paricá spaced 4mx4m. The plants were evaluated to shoot biomass production, nutrient contents in leaves of jack bean. Shoot fresh and dry biomass production of the evaluated specie were 25.4 t.ha-1 e 4.8 t.ha-1, respectively.The average concentrations of nutrients were 44.26 g.Kg-1 (N); 3.01 g.Kg-1 (P); 16.3 g.Kg-1 (K); 9.88 g.Kg-1 (Ca); 3.11 g.Kg-1 (Mg), 28 mg.Kg-1 (Cu); 61 mg.Kg-1 (Mn); 175 mg.Kg-1 (Fe) and 41 mg.Kg-1 (Zn). The results of biomass productions and above-ground nutrients of jack bean show that this species has potential for use as green manure in agroforestry systems and reforestations areas. KEY-WORDS: cover legumes, mulch, nutrients.RESUMO: O objetivo deste estudo foi avaliar a produção de biomassa e teor de nutrientes do feijão-de-porco (Canavalia ensiformis (L.) DC.) consorciado com o paricá (Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby) no estado do Pará. O feijão-de-porco foi semeado nas entrelinhas de paricá cultivado em espaçamento 4m x 4m. Foram observadas a produção de massa seca da parte aérea e a concentração de nutrientes do tecido vegetal das folhas do feijão- de-porco. A produção média de massas fresca e seca da parte aérea do feijão-de-porco foi de 25,4 t.ha-1 e 4,8 t.ha-1, respectivamente. As concentrações médias de nutrientes contidas no tecido vegetal de feijão-de-porco foram: 44,26 g.Kg-1 (N); 3,01 g.Kg-1 (P); 16,3 g.Kg-1 (K); 9,88 g.Kg-1 (Ca); 3,11 g.Kg-1 (Mg), 28 mg.Kg-1 (Cu); 61mg.Kg-1 (Mn); 175 mg.Kg-1 (Fe) e 41 mg.Kg-1 (Zn). Os resultados de produção de biomassa e de nutrientes da parte aérea do feijão-de-porco associado ao paricá revelam que esta espécie possui potencial para uso em adubação verde em áreas de reflorestamento. PALAVRAS-CHAVE: cobertura morta, leguminosa de cobertura, nutrientes
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Letter from unknown writer to Jesse L. Boyce
No full textLetter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
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