Análisis histórico constructivo de la iglesia de Santo Domingo de Guzmán (Pajarejos, Segovia) por medio del análisis estratigráfico constructivo

El artículo ilustra el potencial del análisis estratigráfico, un método arqueológico para leer la información contenida en los paramentos, para la obtención datos y la documentación del patrimonio arquitectónico. Las vicisitudes del método configuran un modelo especializado de carácter constructivo dentro del proceso de documentación patrimonial, más allá del conocimiento histórico y el análisis tipológico. Tomando como fuente primaria el propio edificio, se aplica un procedimiento lógico y contextualizado de los elementos legibles y tangibles, deduciendo de manera técnica el conjunto de campañas constructivas que lo han conformado hasta su estado actual. Su inclusión previa a cualquier actuación en un bien patrimonial, contribuye a mejorar el entendimiento y la toma de postura ante cualquier intervención en el bien arquitectónico. El estudio estratigráfico detallado de la iglesia románica de Santo Domingo de Guzmán (Castilla y León, España) ha demostrado claramente las virtudes del método, ante la carencia de estudios previos y la limitada disponibilidad de referencias históricas. El estudio, inédito a nivel arquitectónico, delimitó trece fases constructivas, específicas y complementarias comprendidas entre el siglo XII y la actualidad.

Manos manchadas de sangre: los orígenes cristianos del mito antijudío del crimen ritual

La acusación antijudía del crimen o asesinato ritual gozó de una enorme popularidad en la Edad Media. A mediados del siglo XII, surgió de forma “espontánea” en diferentes lugares de la Europa medieval y dio lugar a infinidad de variantes. Su versión definitiva fue la del asesinato, preferentemente por crucifixión, de un niño cristiano a manos de los judíos con el fin de incorporar su sangre al pan ázimo. Sin embargo, su origen más remoto debe buscarse en la Antigüedad. De hecho, su más incipiente desarrollo puede encontrarse ya a comienzos del siglo V en el historiador cristiano Sócrates (Hist. Eccl., VII, 16), quien cuenta que hacia el año 415, en Inmestar (Siria), con motivo de las celebraciones de la fiesta de Purim, los judíos, embriagados por el vino, amarraron a un niño cristiano a una cruz y lo asesinaron. El relato de este hecho monstruoso plantea algunas dudas acerca de lo acontecido. Seguramente la historia sea falsa y se sitúe en el contexto de una ley del Codex Theodosianus del año 408 (XVI, 8, 18) que prohibía insultar a la Cruz durante la celebración de dicha festividad judía.

Sopravvivenze d'inchiostro. Catalogo dei frammenti manoscritti di riuso dell'Archivio Generale Arcivescovile di Bologna. Parrocchie Soppresse della Città.

La presente tesi di dottorato ha come oggetto principale la catalogazione dei 120 frammenti latini manoscritti rinvenuti all’interno del fondo Parrocchie Soppresse della Città dell’Archivio Generale Arcivescovile di Bologna. Sono di lacerti di pergamena provenienti da antichi codici e documenti dismessi per varie ragioni, riutilizzati come materiale povero di legatoria per il confezionamento di registri parrocchiali di epoca moderna. I frammenti, che ad oggi si trovano tutti in situ, ossia svolgono ancora la loro funzione di riuso, rappresentano un variegato patrimonio manoscritto mutilo totalmente sconosciuto, reso per la prima volta accessibile proprio dal presente strumento descrittivo. In apertura al catalogo si colloca un’ampia sezione dedicata a delineare lo stato degli studi e degli orientamenti di ricerca intrapresi per proporre delle soluzioni alle criticità peculiari connesse alla catalogazione di manoscritti mutili: un dibattito che però ha preso in considerazione, quasi in maniera esclusiva, i frammenti di natura libraria. Pertanto, si è ritenuto necessario dare rilievo alle questioni poste dalla descrizione dei lacerti di documenti, estremamente frequenti tra le tipologie testuali reimpiegate. Tale considerazione appare necessaria, specialmente in un panorama di ricerca che si propone di guardare a grandi corpora frammentari con un approccio interdisciplinare, che si serve, inoltre, dei nuovi strumenti offerti dalle digital humanities. A dimostrazione dell’eterogeneità delle fonti rinvenute, le quali ricoprono un arco temporale che va dalla fine dell’XI secolo agli inizi del XVIII, si propongono due casi di studio rivolti all’analisi paleografica e testuale di un lacerto del De mulieribus claris di Boccaccio e di un testimone di XII sec. della Passio di S. Giuliana. Infine, la realizzazione del presente progetto è stata accompagnata da un parallelo censimento dei disiecta membra all’interno di altri fondi dell’Archivio Arcivescovile , un’operazione che, nonostante sia ancora in corso, ha già portato alla luce quasi 600 nuove maculature del tutto inedite.

The Social Life of Pots. The reconstruction of ceramic production and distribution patterns of pottery assemblages in the Northern Levant during the Iron Age

The aim of the project is the creation of a new model for the analysis of the political and social structures of the Northern Levant during the Iron Age, through the study of the production and circulation of ceramics in urban and rural centers. The project includes an innovative approach compared to a traditional contextual and analytical study of ceramic material. The geographical area under consideration represents an ideal context for understanding these dynamics, as a place of interaction between culturally different but constantly communicating areas (Eastern Mediterranean, Syria, Upper Mesopotamia). They corresponds to present-day southeastern Turkey and northern Syria, with the Mediterranean coast and the Euphrates River as limits to the west and east, respectively. The chronological interval taken into consideration by the study extends from the twelfth century BC. to the seventh century BC, corresponding to a phase of political fragmentation of the region into small-medium state entities and their subsequent conquest by the Neo-Assyrian empire starting from the end of the ninth century BC.

London in the olden time, or, Tales intended to illustrate the manners and superstitions of its inhabitants, from the twelfth to the sixteenth century.

Authorship attributed to Miss H. Laurence. Cf. Dict. of Pseud. English Literature, v. III, 1928, p. 390.

A catalogue of manuscripts, in different languages on theology, English and foreign history, [etc., etc.] of various dates, from the twelfth to the eighteenth century. To which is added a small collection of manuscripts in the Oriental languages, with an appendix containing a few printed books, [etc., etc.]

[Bookplate: Bibliotheca Lindesiana."]

Twelfth-night festival of the Century Association, January the sixth, MDCCXCIX.

One of an edition of 350 copies.

The century Shakespeare.

T.p. in green and black; illustrated lining papers.

A century of research: what have we learned about the interaction of Trypanosoma cruzi with host cells?

Since the discovery of Trypanosoma cruzi and the brilliant description of the then-referred to "new tripanosomiasis" by Carlos Chagas 100 years ago, a great deal of scientific effort and curiosity has been devoted to understanding how this parasite invades and colonises mammalian host cells. This is a key step in the survival of the parasite within the vertebrate host, and although much has been learned over this century, differences in strains or isolates used by different laboratories may have led to conclusions that are not as universal as originally interpreted. Molecular genotyping of the CL-Brener clone confirmed a genetic heterogeneity in the parasite that had been detected previously by other techniques, including zymodeme or schizodeme (kDNA) analysis. T. cruzi can be grouped into at least two major phylogenetic lineages: T. cruzi I, mostly associated with the sylvatic cycle and T. cruzi II, linked to human disease; however, a third lineage, T. cruziIII, has also been proposed. Hybrid isolates, such as the CL-Brener clone, which was chosen for sequencing the genome of the parasite (Elias et al. 2005, El Sayed et al. 2005a), have also been identified. The parasite must be able to invade cells in the mammalian host, and many studies have implicated the flagellated trypomastigotes as the main actor in this process. Several surface components of parasites and some of the host cell receptors with which they interact have been described. Herein, we have attempted to identify milestones in the history of understanding T. cruzi- host cell interactions. Different infective forms of T. cruzi have displayed unexpected requirements for the parasite to attach to the host cell, enter it, and translocate between the parasitophorous vacuole to its final cytoplasmic destination. It is noteworthy that some of the mechanisms originally proposed to be broad in function turned out not to be universal, and multiple interactions involving different repertoires of molecules seem to act in concert to give rise to a rather complex interplay of signalling cascades involving both parasite and cellular components.

Status of Early 19th-Century Names Authored in Parallel by Wied and Schinz for South American Reptiles and Amphibians, with Designations of Three Nomina Protecta

Prince Maximilian zu Wied's great exploration of coastal Brazil in 1815-1817 resulted in important collections of reptiles, amphibians, birds, and mammals, many of which were new species later described by Wied himself The bulk of his collection was purchased for the American Museum of Natural History in 1869, although many ""type specimens"" had disappeared earlier. Wied carefully identified his localities but did not designate type specimens or type localities, which are taxonomic concepts that were not yet established. Information and manuscript names on a fraction (17 species) of his Brazilian reptiles and amphibians were transmitted by Wied to Prof. Heinrich Rudolf Schinz at the University of Zurich. Schinz included these species (credited to their discoverer ""Princ. Max."") in the second volume of Das Thierreich ... (1822). Most are junior objective synonyms of names published by Wied. However, six of the 17 names used by Schinz predate Wied's own publications. Three were manuscript names never published by Wied because he determined the species to be previously known. (1) Lacerta vittata Schinz, 1822 (a nomen oblitum) = Lacerta striata sensu Wied (a misidentification, non Linnaeus nec sensu Merrem) = Kentropyx calcarata Spix, 1825, herein qualified as a nomen protectum. (2) Polychrus virescens Schinz, 1822 = Lacerta marmorata Linnaeus, 1758 (now Polychrus marmoratus). (3) Scincus cyanurus Schinz, 1822 (a nomen oblitum) = Gymnophthalmus quadrilineatus sensu Wied (a misidentification, non Linnaeus nec sensu Merrem) = Micrablepharus maximiliani (Reinhardt and Lutken, ""1861"" [1862]), herein qualified as a nomen protectum. Qualifying Scincus cyanurus Schinz, 1822, as a nomen oblitum also removes the problem of homonymy with the later-named Pacific skink Scincus cyanurus Lesson (= Emoia cyanura). The remaining three names used by Schinz are senior objective synonyms that take priority over Wied's names. (4) Bufo cinctus Schinz, 1822, is senior to Bufo cinctus Wied, 1823; both, however, are junior synonyms of Bufo crucifer Wied, 1821 = Chaunus crucifer (Wied). (5) Agama picta Schinz, 1822, is senior to Agama picta Wied, 1823, requiring a change of authorship for this poorly known species, to be known as Enyalius pictus (Schinz). (6) Lacerta cyanomelas Schinz, 1822, predates Teius cyanomelas Wied, 1824 (1822-1831) both nomina oblita. Wied's illustration and description shows cyanomelas as apparently conspecific with the recently described but already well-known Cnemidophorus nativo Rocha et al., 1997, which is the valid name because of its qualification herein as a nomen protectum. The preceding specific name cyanomelas (as corrected in an errata section) is misspelled several ways in different copies of Schinz's original description (""cyanom las,"" ""cyanomlas,"" and cyanom""). Loosening, separation, and final loss of the last three letters of movable type in the printing chase probably accounts for the variant misspellings.

Simulation of Soil Carbon Dynamics under Sugarcane with the CENTURY Model

Currently there is a trend for the expansion of the area cropped with sugarcane (Saccharum officinarum L.), driven by an increase in the world demand for biofuels, due to economical, environmental, and geopolitical issues. Although sugarcane is traditionally harvested by burning dried leaves and tops, the unburned, mechanized harvest has been progressively adopted. The use of process based models is useful in understanding the effects of plant litter in soil C dynamics. The objective of this work was to use the CENTURY model in evaluating the effect of sugarcane residue management in the temporal dynamics of soil C. The approach taken in this work was to parameterize the CENTURY model for the sugarcane crop, to simulate the temporal dynamics of soil C, validating the model through field experiment data, and finally to make predictions in the long term regarding soil C. The main focus of this work was the comparison of soil C stocks between the burned and unburned litter management systems, but the effect of mineral fertilizer and organic residue applications were also evaluated. The simulations were performed with data from experiments with different durations, from 1 to 60 yr, in Goiana and Timbauba, Pernambuco, and Pradopolis, Sao Paulo, all in Brazil; and Mount Edgecombe, Kwazulu-Natal, South Africa. It was possible to simulate the temporal dynamics of soil C (R(2) = 0.89). The predictions made with the model revealed that there is, in the long term, a trend for higher soil C stocks with the unburned management. This increase is conditioned by factors such as climate, soil texture, time of adoption of the unburned system, and N fertilizer management.

Modeling soil organic carbon dynamics in Oxisols of Ibiruba (Brazil) with the Century Model

introduction of conservation practices in degraded agricultural land will generally recuperate soil quality, especially by increasing soil organic matter. This aspect of soil organic C (SOC) dynamics under distinct cropping and management systems can be conveniently analyzed with ecosystem models such as the Century Model. In this study, Century was used to simulate SOC stocks in farm fields of the Ibiruba region of north central Rio Grande do Sul state in Southern Brazil. The region, where soils are predominantly Oxisols, was originally covered with subtropical woodlands and grasslands. SOC dynamics was simulated with a general scenario developed with historical data on soil management and cropping systems beginning with the onset of agriculture in 1900. From 1993 to 2050, two contrasting scenarios based on no-tillage soil management were established: the status quo scenario, with crops and agricultural inputs as currently practiced in the region and the high biomass scenario with increased frequency of corn in the cropping system, resulting in about 80% higher biomass addition to soils. Century simulations were in close agreement with SOC stocks measured in 2005 in the Oxisols with finer texture surface horizon originally under woodlands. However, simulations in the Oxisols with loamy surface horizon under woodlands and in the grassland soils were not as accurate. SOC stock decreased from 44% to 50% in fields originally under woodland and from 20% to 27% in fields under grasslands with the introduction of intensive annual grain crops with intensive tillage and harrowing operations. The adoption of conservation practices in the 1980s led to a stabilization of SOC stocks followed by a partial recovery of native stocks. Simulations to 2050 indicate that maintaining status quo would allow SOC stocks to recover from 81% to 86% of the native stocks under woodland and from 80% to 91 % of the native stocks under grasslands. Adoption of a high biomass scenario would result in stocks from 75% to 95% of the original stocks under woodlands and from 89% to 102% in the grasslands by 2050. These simulations outcomes underline the importance of cropping system yielding higher biomass to further increase SOC content in these Oxisols. This application of the Century Model could reproduce general trends of SOC loss and recovery in the Oxisols of the Ibiruba region. Additional calibration and validation should be conducted before extensive usage of Century as a support tool for soil carbon sequestration projects in this and other regions can be recommended. (C) 2009 Elsevier B.V. All rights reserved.

Research Quality, Publications and Impact in Hydraulic Engineering into the 21st Century. Publish or Perish, Commercial versus Open Access, Internet versus Libraries

One of the main objectives of the first International Junior Researcher and Engineer Workshop on Hydraulic Structures is to provide an opportunity for young researchers and engineers to present their research. But a research project is only completed when it has been published and shared with the community. Referees and peer experts play an important role to control the research quality. While some new electronic tools provide further means to disseminate some research information, the quality and impact of the works remain linked with some thorough expert-review process and the publications in international scientific journals and books. Importantly unethical publishing standards are not acceptable and cheating is despicable.

Leadership in the Asian Century: Lessons from GLOBE

In this paper, based on the results of the Global Leadership and Organizational Behavior Effectiveness (GLOBE) 61-nation study of culture and leadership, we present findings related to three ‘clusters’ of countries. These clusters are: (1) the ‘Anglo culture’ cluster (Australia, Canada, Ireland, New Zealand, white South Africa, UK, and USA), the ‘Southern Asia’ cluster (Iran, India, Thailand, Malaysia, Indonesia, and the Philippines), and the ‘Confucian Asia’ cluster (China, Hong Kong, Japan, Singapore, South Korea, and Taiwan). Data from the GLOBE study, reporting middle managers’ perceptions of societal practices and values, and of the factors that facilitate and inhibit effective leadership will be compared across the three clusters. Results demonstrate that, despite differences in cultures, especially cultural values, perceptions of effective leadership vary substantially only in respect of the extent that participation is seen to facilitate leadership. In the Anglo cluster, participative leadership is seen as much more facilitative of leadership, than in either of the Asian clusters. Results are discussed in terms of effective leadership styles suitable for management in the twenty-first century, where Asian economies are likely to play a more dominant role than they have in recent history.

Hydraulic engineering in the 21st century: Where to?

For centuries, hydraulic engineers were at the forefront of science. The last forty years marked a change of perception in our society with a focus on environmental sustainability and management, particularly in developed countries. Herein, the writer illustrates his strong belief that the future of hydraulic engineering lies upon a combination of innovative engineering, research excellence and higher education of quality. This drive continues a long tradition established by eminent scholars like Arthur Thomas IPPEN, John Fisher KENNEDY and Hunter ROUSE.