102,408 research outputs found
JOHN M. LAWRENCE, JANESSA C. COBB, JOAN C. HERRERA, ALICIA DURÁN-GONZÁLEZ & FRANCISCO ALONSO SOLÍS-MARÍN (2018) Morphological comparison of Astropecten cingula-
No full textLawrence, John M., Cobb, Janessa C., Herrera, Joan C., Durán-González, Alicia, Solís-Marín, Francisco Alonso (2019): JOHN M. LAWRENCE, JANESSA C. COBB, JOAN C. HERRERA, ALICIA DURÁN-GONZÁLEZ & FRANCISCO ALONSO SOLÍS-MARÍN (2018) Morphological comparison of Astropecten cingula-. Zootaxa 4590 (1): 200-200, DOI: https://doi.org/10.11646/zootaxa.4590.1.1
Above and below-ground phenotypic traits and global DNA methylation in Erodium cicutarium plants experimentally exposed to either seed demethylation, recurrent drought or both
No full textThis study was conducted with a second generation of Erodium cicutarium plants grown in the greenhouse. Seeds were collected in 2015 from six adult broadly spaced plants at two E. cicutarium natural populations located in Cazorla mountains (Jaén province, SE Spain): Puerto del Tejo (PT, 1590 m asl) and Nava de las Correhuelas (CH, 1625 m asl) distant ca. 10 km in straight-line.
The first generation (F1) plants (N = 50 and 41 for PT and CH, respectively) were grown in pots (universal substrate COMPO SANA®, mixed in 3:1 with perlite); pots were grouped in trays which combined individuals from the two populations and were periodically rotated within the greenhouse (16h light; 25-20 °C) until the end of reproduction (ca. 6 months). Half of the trays were watered twice per week and the other half were watered once every 10-11 days, being sure that some offspring of every plant experienced the two water regimes. Autonomously self-pollinated fruits were collected in paper bags, and stored at room temperature.
In October 2016, seeds from the offspring of six mothers from each of the two water regimes and population were selected (N = 24 families: 2 populations * 2 water maternal regimes * 6 F1-mothers), with each F1-mother having a sib in the other water regime (i.e., the same six wild-plants per population provide seeds for all treatment levels). A demethylation treatment was applied to half of the seeds in which scarified seeds were submerged in 150 µl of either Control (water with DMSO 97:3, v:v) or a 0.5 mM solution of 5-azacytidine (Sigma A2385-100mg; 5azaC hereafter) during 48 h at 4 °C, a temperature in which the compound is relatively stable. Twenty days after sowing, 288 seedlings (144 control and 144 treated with 5azaC) of these second generation (F2) were transplanted into 1L pots. Other F2 extra seedlings (N = 40) were collected a few days later and processed to confirm the efficiency of the demethylation treatment at this stage and the normal appearance of individuals that reached this stage (see results in Alonso et al., 2017).
The recurrent drought treatment started three weeks after transplant, when seedlings were around six weeks old. For each maternal line (line, hereafter), half the offspring was watered at field capacity twice per week and half the offspring was watered at field capacity once every 10-11 d until the end of the experiment. The full design was a 2 x 2 factorial with three replicates per line. Flowering started one week after transplant and reached the peak (75 % individuals with flowers) at week 10. The experiment finished when plants were 17 weeks old and plants started showing signs of senescence.
Further details on traits measured and statistical methods can be obtained in Alonso, C., M. Medrano, C. M. Herrera. 2025. A dynamic epigenetic perspective on above and below-ground phenotypic responses to drought: insights from global DNA methylation in Erodium cicutarium. Plant Biology.This dataset includes one file containing data on the results of an experimental study that combined the experimental application of a demethylating agent (5-azacytidine) at seed germination stage with recurrent drought following a 2 x 2 factorial design in Erodium cicutarium (Geraniaceae). We measured global DNA methylation in adult leaves and roots, and above- and below-ground phenotypic traits related to plant development (first leaf length, time to first flower, changes in leaf and inflorescence numbers over time) and final (static) phenotype (reproductive output, above and below-ground biomass).Peer reviewe
Recensão: C. Cosmen Alonso; M. V. Herráez Ortega; M. P. Gómez-Calcerrada, (coord.), El intercambio artístico entre los reinos hispanos y las cortes europeas en la baja edad media
No full textRecensão de: C. Cosmen Alonso; M. V. Herráez Ortega; M. P. Gómez-Calcerrada, (coord.). 2009. El intercambio artístico entre los reinos hispanos y las cortes europeas en la baja edad media. León: Universidad de LeónFundação para a Ciência e a Tecnologia (FCT), Fundação Millennium bcp, Direcção Geral do Livro e das Bibliotecas/MC, Instituto de Estudos Medievais – FCSH/UN
The epidemiology of malaria in adults in a rural area of southern Mozambique.
No full textBACKGROUND: Epidemiological studies of malaria in adults who live in malaria endemic areas are scarce. More attention to the natural history of malaria affecting adults is needed to understand the dynamics of malaria infection and its interaction with the immune system. The present study was undertaken to investigate the clinical, parasitological and haematological status of adults exposed to malaria, and to characterize parasites in these individuals who progressively acquire protective immunity. METHODS: A cross-sectional survey of 249 adults was conducted in a malaria endemic area of Mozambique. Clinical, parasitological and haematological status of the study population was recorded. Sub-microscopic infections and multiplicity of infections were investigated using polymerase chain reaction (PCR) and restriction fragment length polymorphism of Plasmodium falciparum merozoite surface protein 2 (msp2). RESULTS: Prevalence of P. falciparum infection by microscopy (14%) and PCR (42%) decreased progressively during adulthood, in parallel with an increase in the prevalence of sub-microscopic infections. Anaemia was only related to parasitaemia as detected by PCR. Multiplicity of infection decreased with age and was higher in subjects with high P. falciparum densities, highlighting density-dependent constraints upon the PCR technique. CONCLUSION: Adults of Manhiça progressively develop non-sterile, protective immunity against P. falciparum malaria. The method of parasite detection has a significant effect on the observed natural history of malaria infections. A more sensitive definition of malaria in adults should be formulated, considering symptoms such as diarrhoea, shivering and headache, combined with the presence of parasitaemia
Odd nuclei and shape phase transitions: the role of the unpaired fermion
No full textFortunato, Lorenzo/0000-0003-2137-635X; Arias, Jose M./0000-0001-7363-4328; Alonso, Clara E/0000-0001-9365-4107Shape phase transitions in even and odd systems are reviewed within the frameworks of the Interacting Boson Model(IBM) and the Interacting Boson Fermion Model(IBFM), respectively and compared with geometric models when available. We discuss, in particular, the case of an odd j = 3/2 particle coupled to an even-even boson core that undergoes a transition from the spherical limit U(5) to the gamma-unstable limit O(6). Energy spectrum and electromagnetic transitions, in correspondence of the critical point, display behaviors qualitatively similar to those of the even core and they agree qualitatively with the model based on the E(5/4) boson-fermion symmetry. We describe then the U-BF(5) to SUBF(3) transition when a fermion is allowed to occupy the orbits j = 1/2, 3/2,5/2. The additional particle characterizes the properties at the critical points in finite quantum systems
El cabildo catedralicio de Lima contra el párroco Alonso de Huerta por las rentas eclesiásticas (1592-1606)
No full textEl objetivo de este trabajo es reconstruir las tensiones políticas entre una oligarquía eclesiástica local, centrada en el Cabildo metropolitano, y el segundo arzobispo de Lima, Toribio Alfonso de Mogrovejo (1538-1606), y el párroco Alonso de Huerta, uno de sus más fieles colaboradores. Aunque el Cabildo era una especie de senado o consejo permanente al servicio del clero diocesano, en ningún momento actuó como una institución de apoyo a la labor evangélica del Arzobispo Mogrovejo. Muy al contrario, sus miembros cerraron filas contra lo que consideraron una violación de sus privilegios económicos, y en numerosas ocasiones denunciaron al Arzobispo y al párroco Alonso de Huerta por considerar que se entrometían en el fuero interno del Cabildo.The aim of this contribution is the presentation of the political conflicts between the Archbishop of Lima, Toribio Alfonso de Mogrovejo (1538-1606), together with his faithful collaborator the parish priest Alonso de Huerta, and the cathedral
chapter. Though the chapter was a sort of senate or permanent council of the diocese clergy, it by no means acted as an institution involved in the missionary
commitments of Archbishop Mogrovejo. On the contrary, its members rallied around against what they considered to be a violation of their economic privileges, and on several instances they denounced the Archbishop, as well as the parish priest Alonso de Huerta, arguing that they intruded in the internal rules of the chapter.Publicad
«Troneras a regla» según Alonso de Vandelvira: trazado y geometría
No full text[EN] Linteled embrasures (or «troneras a regla») are described in a small section within the treatise «Libro de traças de corte de piedras» by the Andalusian Alonso de Vandelvira that has not yet been studied. Among the four examples that contain this chapter, the two «troneras a regla torre cavada y redonda» (linteled embrasures in a concave-round tower) attract special attention. The particular geometric strategy used to trace them forces to vary the original shape of its intrados. The methods used to resolve these embrasures also appear in other titles of the treatise, but they do not have the same effect there. This article seeks to understand the characteristics of this transformation from the reproduction of the process explained by Vandelvira and its graphic reinterpretation. Using the same methodology, its development has also been compared with those of other proposed examples in the treatise.[ES] Las «troneras a regla» constituyen un pequeño apartado apenas estudiado dentro del tratado «Libro de traças de cortes de piedras» del andaluz Alonso de Vandelvira. De entre las cuatro trazas que lo componen son las dos «troneras a regla torre cavada y redonda» las que llaman la atención especialmente. La estrategia geométrica seguida para hacer posible su traza, representada entre los folios 41v. y 43r., obliga a variar la forma originaria de su intradós. Los métodos utilizados para desarrollar estas troneras aparecen también en otros títulos del tratado, pero no tienen las mismas consecuencias. En este artículo se busca entender algunas de las características del uso de esta transformación y comparar su proceso de traza con el de otros casos propuestos en el tratado.Aranda Alonso, M. (2022). «Troneras a regla» según Alonso de Vandelvira: trazado y geometría. Revista de Historia de la Construcción. 1(1):63-74. https://doi.org/10.4995/hc.2021.15339OJS637411Alviz, P. (ca. 1/2 s. XVI). Manuscrito de trazas de cantería. Madrid: Biblioteca Nacional de España. Mss/12686.Aranda Alonso, María. 2018. Las copias manuscritas de F.L. Goiti y B. Sombigo del «Libro de traças de cortes de piedras» de Alonso de Vandelvira: análisis comparativo de algunos aspectos de su realización. En Titivillus = International Journal of Rare Book: Revista Internacional sobre Libro Antiguo 4: 139-151.https://doi.org/10.26754/ojs_titivillus/titivillus.201803169Aranda Alonso, María. 2019. Reflexiones sobre la geometría, concepción y desarrollo de las troneras en el «Libro de traças de cortes de piedras» de Alonso de Vandelvira. En Actas del Undécimo Congreso Nacional de Historia de la Construcción: Soria, 9 - 12 octubre 2019, coord. por Santiago Huerta Fernández, Ignacio Javier Gil Crespo, 1: 71-80. Madrid: Instituto Juan de Herrera.Calvo López, José. (1999). «Cerramientos y trazas de montea» de Ginés Martínez de Aranda. Tesis Doctoral. Universidad politécnica de Madrid.García Baño, Ricardo. 2017. El manuscrito de cantería mss. 12686 de la Biblioteca Nacional de España. Tesis doctoral. Universidad Politécnica de Cartagena.Lázaro de Goiti, Felipe. Fragmentos de dibuxos y discursos de arquitectura de Alonso de Vande Elvira copiados y ordenados a caso por Felipe Lázaro de Goiti. s.f. Madrid: Biblioteca Nacional. Mss/12744Martínez de Aranda, Ginés. ca. 1598-1608. Cerramientos y trazas de montea. Madrid: Biblioteca del Servicio Histórico Militar. MS-457.Palacios González, Jose Carlos. 1990. Trazas y cortes de piedra en el renacimiento español. Madrid: Ministerio de Cultura.Portor y Castro, Juan de. 1708-1719. Cuaderno de arquitectura. Madrid: Biblioteca Nacional. Mss/9114.Ribes i Ferrer, Josep. 1708. Llibre de trasas de vias y muntea. Manuscrito. Barcelona: Biblioteca de Cataluña.Vandelvira, Alonso de. ca. 1575-1591. Libro de traças de cortes de piedras. Copias: Sombigo y Salcedo, Bartolomé. 1670 [¿] ETSAM (Ms. RAROS 31) (Facs. ed. Palacios González, J. C. 2015. Madrid: Instituto Juan de Herrera.) Lázaro Goiti, Felipe. 1646. Madrid: Biblioteca Nacional. Mss/12719
Chionoloma tenuirostre var. tenuirostre M. Alonso, M. J. Cano & J. A. Jiménez var. tenuirostre
No full text* Chionoloma tenuirostre (Hook. & Taylor) M.Alonso, M.J.Cano & J.A.Jiménez var. tenuirostre SPECIMENS EXAMINED. — New Caledonia. North Province, Poya 15 km NE, limestone massif Roche d’Adio, 21°14’S, 165°15’E, on limestone rockface, c. 200-250 m, 06.IX.2003, Müller NC464 (DR). COMMENTS In New Caledonia, three species of the genus Chionoloma Dixon were hitherto known, namely Chionoloma dubium (Thér.) M.Alonso, M.J.Cano & J.A.Jiménez, C. orthodontum (Müll.Hal.) M.Alonso, M.J.Cano & J.A.Jiménez, and C. schlimii (Müll.Hal.) M.Alonso, M.J.Cano & J.A.Jiménez (Alonso et al. 2019). Record details of our own collections of C. dubium and C. schlimii (as C. crassicostatum (D.H.Norris & T.J.Kop.) M.Alonso, M.J.Cano & J.A.Jiménez) are given in Thouvenot et al. (2018). Here we report a fourth species of the genus, C. tenuirostre, as new for New Caledonia. This species is most similar to C. orthodontum, but is differing by its leaf basal marginal cells, which do not extend up the margin to form a V-shaped pattern, and its dorsal stereid band of the costa, which is usually larger than the ventral band (Alonso et al. 2019). Chionoloma tenuirostre var. tenuirostre has a cosmopolitan distribution, except for arctic regions (Alonso et al. 2019), the nearest known records are in Australia, New Zealand and Papua New Guinea.Published as part of Thouvenot, Louis & Müller, Frank, 2021, Contribution to the bryophyte flora of New Caledonia IV. Species new to the country, new localities together with taxonomic notes, pp. 181-196 in Cryptogamie, Bryologie 20 (13) on page 192, DOI: 10.5252/cryptogamie-bryologie2021v42a13, http://zenodo.org/record/782227
PONCE DE LEÓN, A. y ALONSO, R. A. (Coords.); ALBA, A. R.; BATANÁS, A.; DUQUE, M. C.; MARTÍNEZ, M. V.; MERINO, I.; PAJARES, Á.; RUIZ, Y., TOBÍAS, M. V. y VELANDIA, N. (2010): La motricidad en Educación Infantil. Propuestas prácticas para el aula. Madrid: CCS, 249 páginas, ISBN 978-84-9842-452-2.
No full textPONCE DE LEÓN, A. y ALONSO, R. A. (Coords.); ALBA, A. R.; BATANÁS, A.;
DUQUE, M. C.; MARTÍNEZ, M. V.; MERINO, I.; PAJARES, Á.; RUIZ, Y., TOBÍAS, M.
V. y VELANDIA, N. (2010): La motricidad en Educación Infantil. Propuestas prácticas
para el aula. Madrid: CCS, 249 páginas, ISBN 978-84-9842-452-2
THE ROTATIONAL STUDY OF DOPAC, A NEURAL METABOLITE
No full textDOPAC (3,4-Dihydroxyphenylacetic acid) is an intermediate neural metabolite in the cycle of catecholamines,\footnote{
C. Cabezas, I. Peña, J. C. López and J. L. Alonso, Seven conformers of neutral dopamine revealed in the gas phase, J. Phys. Chem. Lett., 2013, 4, 486–490 and references therein.} concretely in the metabolic reaction of dopamine (DA) to produce homovanillic acid (HVA), a substance that being present in urine in a large quantity, is indicative of health problems. In this work, we present a rotational study to explore the conformational preferences of DOPAC. It has been brought into gas phase avoiding decomposition by laser ablation LA of the solid sample, and the conformers present in the supersonic expansion have been probed by CP-FTMW spectroscopy.\footnote{I. Peña, S. Mata, A. Martín, C. Cabezas, A. M. Daly and J. L. Alonso, Conformations of D-xylose: the pivotal role of the intramolecular hydrogen-bonding., Phys. Chem. Chem. Phys., 2013, 15, 18243–8.} As we will show, several conformers have been detected and characterized. All the data obtained is presented in this communication
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