112,871 research outputs found
Mediterranean plant germination reports – 3
No full textThis is the third issue of the series of germination reports from Mediterranean areas (sensu Med-Checklist). It comprises germination protocols for 40 taxa: Teucrium from Sardinia by M. Porceddu & al. (Nos. 46-47); Campanula from North Italy by S. Villa & al. (No. 48); Anacamptis from Greece by S. Oikonomidis & C. A. Thanos. (No. 49); Astragalus, Iris, Jacobaea, and Klasea from central Italy by V. Di Cecco & al. (No. 50-53); Drimia, Periploca, Asparagus, Myrtus, and Pancratium from Malta by J. Buhagiar & al. (Nos. 54-58); Thymus from Sicily by G. Gugliuzza & al. (No. 59); Agrostemma, Bupleurum, and Xeranthemum from North Italy by A. Cucchietti & al. (Nos. 60-62); Salsola from Sicily and Central Italy by S. Magrini & al. (Nos. 63-65); Physoplexis, Primula, and Spiranthes from North Italy by S. Pierce & al. (Nos. 66-69); Euphorbia from Sicily by F. Carruggio & al. (Nos. 70-74); Helichrysum from Sicily by C. Salmeri & C. Brullo (Nos. 75-85)
Antireicheia demirei Grebennikov, Bulirsch & Magrini, 2009, sp. nov.
No full textAntireicheia demirei sp. nov. (Figs. 1–5) Type material. Holotype (MNHN) male labelled "OKU, 2900 m / Ft de Podocarpus/ 5– 9 –XI–[19] 75 // lavages de/ terre// Mission Cameroun / C.N.R.S. RCP 318 / Octobre-Novembre 1975 " Paratypes (MNHN, PBC, PMC): 5 males, 5 females with the same data as HT. Description. Body rusty yellow-brown, antennae, mouthparts and legs slightly paler (Fig. 1); length 2.70 – 3.00 mm (HT 2.75 mm, mean 2.85 mm, n= 11). Head with ocular part of genae not protruded, eye remnant discernable as small, whitish unfacetted field in anterolateral margin of slightly vaulted genae; genal posterior angles broadly rounded; supraantennal plates separated from genae by moderately deep and broad furrow; vertex without reticulation; antennomeres 6–10 slightly longer than broad; antennal length 0.83 mm (HT). Pronotum with sides moderately rounded, slightly attenuated anteriorly; anterior angles blunt, not protruded anterad; ratio of pronotal length to width 1.02–1.08 (HT 1.05, mean 1.04); ratio of pronotal width to head width 1.53–1.61 (HT 1.54, mean 1.56). Elytra ovate, strongly broadened, maximum width distinctly before middle; base strongly sloping; humeri indistinct, broadly rounded; lateral channel moderately broad, not narrowed apicad; reflexed lateral margin with 3–4 long, slightly prominent humeral teeth; striae 1–3 (4) slightly depressed, lateral ones consisting of sparse punctures; median striae (especially 1–4) finely and irregularly punctate in basal two third, lateral ones (especially 6–7) very fine; all striae gradually disappearing apicad; latero-apical part smooth; elytral intervals flattened, third interval without DSP; ratio of elytral length to width 1.61–1.69 (HT 1.62, mean 1.64); ratio of elytra length to pronotal length 1.99–2.09 (HT 2.01, mean 2.03); ratio of elytral width to pronotal width 1.25–1.32 (HT 1.31, mean 1.28). Aedeagus with median lobe (Figs. 2, 3) 0.64 mm long (HT); parameres as in Fig. 4. Stylomeres as in Fig. 5. Differential diagnosis. Antireicheia demirei is the largest among four Cameroonian species with the body length varying between 2.70 and 3.00 mm; none of other Cameroonian Antireicheia are known to exceed 2.45 mm. Etymology. Patronymic, named in honor of the species collector, Philippe Bruneau de Miré (Paris, France).Published as part of Grebennikov, Vasily V., Bulirsch, Petr & Magrini, Paolo, 2009, Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini), pp. 1-14 in Zootaxa 2292 on pages 4-5, DOI: 10.5281/zenodo.27529
Urban Growth Drivers and Spatial Inequalities: Europe - a case with geographically sticky people
No full textWe try to combine theory with empirical analysis to investigate the drivers of spatial growth processes, welfare and disparities in a context in which people are markedly immobile. Drawing on two of our recent papers (Cheshire and Magrini, 2006 and 2008), we review the evidence on the drivers of differential urban growth in the EU both in terms of population and output growth. The main conclusion from our findings is that one cannot reasonably maintain the assumption of full spatial equilibrium in a European context. This has a number of wider implications. It suggests that i. differences in real incomes in Europe - and more generally where populations are relatively immobile - are likely to persist and indicate real differences in welfare; ii. there is no evidence of a unified European urban system but rather of a set of national systems; iii. there are significant but theoretically consistent, differences in the drivers of population compared to economic growth.Growth, urban system, spatial equilibrium
Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini)
No full textGrebennikov, Vasily V., Bulirsch, Petr, Magrini, Paolo (2009): Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini). Zootaxa 2292: 1-14, DOI: 10.5281/zenodo.27529
Analysing Growth and Distribution Dynamics - Isolating Divergence Factors
No full textThis paper analyses the factors driving convergence and divergence processes in the growth dynamics of European urban regions over the period 1978 to 1994. To achieve this, we develop a two-stage procedure. First, viewing growth of real GDP per capita as a multivariate process, a fully specified growth model is estimated assessing growth dynamics and the role of a rich set of variables. In particular, as noted elsewhere (Cheshire and Magrini, 2005), evidence is found which is supportive of a spatial adaptation of the endogenous growth model, with human capital related variables having a highly significant role in explaining growth differences. The second stage then uses a ‘distribution dynamics’ approach to evaluate the contribution of individual growth factors to convergence dynamics. More specifically, regression results are used to simulate alternative end period incomes which, via the estimation of stochastic kernels, enable us to isolate the role of selected variables in shaping the dynamics of the cross-sectional distribution of per capita income. This analysis suggests that the most important factor determining the form of FUR growth and convergence dynamics observed from 1978 to 1994 was the differing distribution of human capital. These results are compared with the results using the Markov Chain approach and it is found both techniques lead to similar conclusions.
Antireicheia deuvei Grebennikov, Bulirsch & Magrini, 2009, sp. nov.
No full textAntireicheia deuvei sp. nov. (Figs. 11–16) Type material. Holotype (MNHN) male labelled "Mt Bamboutos/ 2600 m / 30.31.X.[19] 75 // lavages de/ terre// Mission Cameroun / C.N.R.S. RCP 318 / Octobre-Novembre 1975 // Muséum/ Paris". Paratypes (MNHN, PBC, PMC): 19 unsexed specimens with the same data as HT; 4 unsexed specimens labelled "Bamboutos/ 2600 m / 31.X. [19] 75 // Mission Cameroun / C.N.R.S. RCP 318 / Octobre-Novembre 1975 // Muséum/ Paris". Description. Body light rusty-brown, antennae, mouthparts and legs slightly paler (Fig. 11); length 2.10– 2.30 mm (HT 2.15 mm, mean 2.19 mm, n= 24). Head with ocular part of genae not protruding, eye remnant discernable as very small, whitish unfacetted field in anterolateral margin of moderately vaulted genae; genal posterior angles moderately rounded; supraantennal plates separated from genae by moderately deep and broad furrow; vertex with fine, irregular reticulation; antennomeres 6–10 slightly wider than long; antennal length 0.62 mm (HT). Pronotum with sides in anterior part very slightly (HT, some PT) to slightly (other PT) rounded, moderately attenuated anteriorly; anterior angles sharp, slightly protruding anterad; ratio of pronotal length to width 1.02–1.08 (HT 1.06, mean 1.05); ratio of pronotal width to head width 1.38–1.48 (HT 1.45, mean 1.45). Elytra almost oval, slightly broadened, maximum width just before middle; base slightly sloping; humeri broadly rounded; lateral channel broad, not narrowed apicad; reflexed lateral margin with 2 (– 3) humeral teeth; all striae consisting of rows of sparse, fine punctures; in apical third punctures finer; lateroapical part almost smooth; elytral intervals flattened, third interval without DSP; ratio of elytral length to width 1.66–1.79 (HT 1.71, mean 1.72); ratio of elytral length to pronotal length 2.03–2.13 (HT 2.08, mean 2.08); ratio of elytral width to pronotal width 1.21–1.32 (HT 1.28, mean 1.27). Aedeagus with median lobe (Figs. 12, 13) 0.50 mm (HT); parameres as in Fig. 14; urite as in Fig. 15. Stylomeres as in Fig. 16. Differential diagnosis. Antireicheia deuvei sp. nov. can be distinguished from A. demirei sp. nov. by the smaller body (2.10–2.30 mm versus 2.70 –3.00 mm), by the elytra with less rounded humeri and by the distinctly deeper strial punctures; from A. hintelmanni sp. nov. by the non-protruding ocular part of the genae, by the elytral lateral margin without several teeth, by no DSP, and from both species by the shape of the aedeagus (Figs. 12–13 versus Figs. 2 –3, 7– 8). Antireicheia deuvei sp. nov. can be distinguished from A. camerounensis sp. nov. using the last couplet in the species key. Etymology. Patronymic, in honor of Thierry Deuve (MNHN, Paris, France).Published as part of Grebennikov, Vasily V., Bulirsch, Petr & Magrini, Paolo, 2009, Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini), pp. 1-14 in Zootaxa 2292 on pages 7-8, DOI: 10.5281/zenodo.27529
FIGURES 17–22 in Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini)
No full textFIGURES 17–22. Antireicheia camerounensis sp. nov. from Cameroon (Bafut, Nguemba forest), holotype (17–21) and paratype (22); 17—habitus, dorsal; 18–19—aedeagus: lateral (18) and ventral (19); 20—parameres; 21—urite; 22– stylomeres.Published as part of Grebennikov, Vasily V., Bulirsch, Petr & Magrini, Paolo, 2009, Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini), pp. 1-14 in Zootaxa 2292 on page 8, DOI: 10.5281/zenodo.27529
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Le véritable impact des légumineuses
No full textNUTS ' TALK #49 : https://www.youtube.com/watch?v=LIuCCWyQcNMhttps://www.youtube.com/watch?v=LIuCCWyQcNMLes légumineuses jouent un rôle clé dans la transition vers une agriculture plus durable en fixant naturellement l'azote, réduisant ainsi la dépendance aux engrais de synthèse, responsables des émissions de gaz à effet de serre. Pourtant la France importe 75 % des légumineuses qu'elle consomme. Il faut donc relancer cette culture, tout en convainquant les agriculteurs et les industries agroalimentaires de leur importance. Mais comment s’y prendre si aucun débouché n’est possible ? Marie-Benoît Magrini, économiste à l'INRAE, a réussi avec son équipe à rassembler chercheurs et industriels pour développer des solutions agroécologiques. Des processus innovants pour intégrer les légumineuses dans les systèmes agricoles et améliorer l’autonomie alimentaire. Il est crucial de diversifier les cultures pour : Limiter les attaques de ravageurs Optimiser l'usage des nutriments Améliorer la fertilité des sols Tout en favorisant la durabilité des systèmes agricoles. L'agroécologie vise à résoudre à la fois les problèmes environnementaux liés aux pratiques agricoles intensives (émissions de GES, pollution) et les défis sociaux tels que la sécurité alimentaire et la santé publique. Comment rassembler tous ces acteurs économiques afin qu’ils collaborent pour innover, tester de nouvelles pratiques et assurer un équilibre économique durable pour tous les maillons de la chaîne ? Dans ce nouvel épisode de Nuts' Talk, Marie-Benoît Magrini nous partage un concept essentiel pour y parvenir et nous explique pourquoi les légumineuses, avec leur capacité unique, sont devenues un levier majeur pour une transition agroécologique
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