Jewish Trading in Fez son the Eve of the Almohad Conquest

This article presents a Genizah letter dealing with Jewish trade in Fes shortly after the Almohads had started their conquest of southern Morocco. The authors propose a new reading of the text, as part of a project of revision of primary sources related to interfaith relations under Almohad rule.This work is part of a project undertaken by the co-authors on ‘Interfaith relations in medieval Islam: Jewish minorities under Almohad rule’ supported by a joint project grant from the British Academy and the Consejo Superior de Investigaciones Cientificas, Madrid.Peer reviewe

Aportación al conocimiento de las diatomeas bentónicas de las aguas corrientes salmantinas

This paper presents the first floristic and photographic catalogue of diatoms that inhabit several rivers and streams of Salamanca. This catalogue is made up of 210 taxa which belong to 164 species. We think that 14 of them are new for Spanish alga flora. We also present some tables where several physical-chemical factors of the water.En este trabajo se da a conocer el primer catálogo florístico y fotográfico de las diatomeas que pueblan diversos ríos y arroyos salmantinos. Este catálogo consta de 197 táxones pertenecientes a 160 especies. Entre ellos, 14 son posibles novedades para la flora algal española. Asimismo, se ofrecen datos obtenidos de varios factores físico-químicos del medio estudiado

Metallaaromatic biaryl atropisomers

Synthesis of stable irida-binaphthyl and -phenanthryl complexes, the first examples of metallaaromatic biaryl atropisomers, has been achieved. The combination of experimental and theoretical studies revealed that the nature of these systems is comparable to that of well-known 1,1′-binaphthalene both in terms of aromaticity and atropisomerism

Key factors in the synthesis of polycyclic iridaaromatics via the methoxyalkenylcarbene pathway

Polycyclic iridaaromatic compounds are of great interest not only because of the contributions made in “aromatic chemistry”, but also because of the possibility of improving the results of the applications of the corresponding organic analogues in different fields. Therefore, understanding the requirements necessary to build on demand this type of compound with specific properties is of great importance. In this work, the keys to successfully synthesize iridaaromatic complexes via methoxyalkenylcarbenes are established. Experimental and theoretical results show (i) that bearing two aromatic substituents on the gamma carbon of the methoxyalkylcarbene promotes the C–H bond activation; (ii) the need for large steric hindrance of the second substituent for a selective synthesis and, (iii) the selectivity in the C–H bond activation towards the less sterically hindered system.Xunta de Galicia | Ref. GRC2019/2

Prospective assessment of post-extraction gingival closure with bone substitute and calcium sulphate

Introduction: The closure of post extraction gingival defects has not been studied in depth, although their achievement is of great importance in certain situations, such as prior to radiotherapy treatment in patients with oral cancer. The aim of this study is to assess the influence of bone substitutes on the time of closure of post extraction gingival defects. Materials and Methods: 22 patients underwent two symmetrical dental extractions. Using a split mouth model, with random assignment to one or other group, one was considered a control group (no filling with any type of material post extraction), whereas the other was considered the experimental group (filling with bone substitute and calcium sulphate post extraction). Gingival closure and healing were assessed in the first group at 2, 3, 4 and 6 weeks after extraction. Results: No differences were seen between both groups in gingival health. Gingival closure was greater and faster in the experimental group than in the control group, and was statistically significant in the first and second week after extraction (1st week, control: 19.63mm2 ± 2.52 - experimental: 11.76mm2 ± 2.40 - p < 0.05) (2nd week, control: 15.09mm2 ± 2.77 - experimental: 7.98mm2 ± 1.99 - p < 0.05), although these differences evened out during subsequent periods. No medical accidents were seen and tolerance to treatment was good in both groups. Discussion: According to our data, the use of filling material allows a faster initial gingival closure of the socket post extraction. However, we must assess the cost of intervention, with the aim of applying it in situations in which it may be of significant advantage (for example, patients that will undergo radiotherapy treatment), or in cases in which the use of these materials is justified due to other reasons in addition to the one mentioned (such as maintenance of bone crest architecture for implant restoration)

Intramedullary screws versus kirschner wires for metacarpal fixation, functional, and patient-related outcomes

Purpose: the purpose of our study is to compare the intramedullary fixation of metacarpal fractures with cannulated headless screws and antegrade Kirschner wires in terms of final total active motion, grip strength, patient-related outcomes, need for casting, and return to work times. Methods The authors performed a retrospective review of the hospital records. Thirty fractures were included in the study, 19 in the screw fixation group, and 11 in the Kirschner wire group. Grip strength, and total active motion, was measured at the latest follow-up for both the injured and contralateral hand. Pain was measured on the visual analog scale. Patients were requested to fill a Quick disabilities of the arm and hand score (DASH) questionnaire at the latest follow-up. Satisfaction was measured on a scale from 0 to 10. The time to return to work was quantified from the accident to the point when the patient was back to active duty. Postoperative casting time was also quantified. Results The authors did not find any differences between the two groups in total active motion, grip strength, pain, satisfaction, or Quick DASH scores. We did find a difference in the return to work and casting times; these appeared to be shorter in the screw group. Conclusion Due to the small number of cases, we have been unable to clearly conclude that there were any benefits in the application of one particular technique when compared with the other

Chemoselectivity on the synthesis of iridacycles: A theoretical and experimental study

The selective synthesis of a spirobifluorene-iridacyclopentadiene complex has been achieved through the corresponding methoxyalkenylcarbeneiridium complex. The chemoselectivity of the Csingle bondH bond activation over the precursor has been studied via DFT calculations on the relative energies of the E and Z isomers of several examples and compared with experimental results. The data suggest that the steric effect of the substituents has more influence than their electronic character on the structure of the resulting iridacycle compounds.Xunta de Galicia | Ref. ED431F 2016/005Xunta de Galicia | Ref. GRC2015/017Unión Europea-FEDER (Interreg V-A—España-Portugal) | Ref. 0245_IBEROS_1_

Spirobifluorene metallaaromatics

Spirobifluorene derivatives find use in many end-user applications. Therefore, further expansion of their scope is the focus of many research studies. However, although the optical properties of spirobifluorenes can be greatly tuned through incorporation of metal complexes, to date, spirobifluorene metallaaromatics remain unknown. Taking advantage of the versatility of our methodology for the synthesis of metallaaromatic systems, this work reports the first metallaaromatic spirobifluorene compound. The presence of an Ir atom was found to redshift the absorption maximum by ca. 1.1 eV compared to bare spirobifluorene. Additionally, X-ray analysis as well as anisotropy of the current-induced density calculations revealed this compound to be of aromatic nature. The high stability in solution, solid state, under air, and at high temperature, as well as distinct optical properties of this new class of compounds are expected to open new frontiers for chiroptical and optoelectronic applications.Xunta de Galicia | Ref. ED431F 2016/005Unión Europea-FEDER (Interreg V-A—España-Portugal) | Ref. 0245_IBEROS_1_EXunta de Galicia | Ref. GRC2015/01

El Practicum en la Formación de Futuros Profesionales ¿Cómo Entienden los Gestores su Mejora?

La aportación que presentamos se ha derivado de una investigación en la que colaboraron equipos de profesores de las universidades de Granada y Tarragona (Rovira i Virgili) animados por Vicente Ferreres. Él apoyó los trabajos desde sus inicios (sugirió la presentación del proyecto, dio ideas, supervisó el diseño...), durante el desarrollo (participó en actividades generando y facilitando información) y al final, impulsando la difusión de los resultados. A él se la debemos y a él se la dedicamos. Destacamos su deseo constante de colaboración entre las dos universidades, hecho que agradecemos por lo que supuso de enriquecimiento personal y profesional para nosotros, derivado de las múltiples actividades que emprendimos conjuntamente. Representa una pequeña parte de la investigación que titulada “Análisis Comparado de la Formación Práctica en el Sistema Universitario como Base de Evaluación y Mejora” fue subvencionada por el Ministerio de Educación y Ciencia, con cargo al “Programa de Estudios y Análisis” de la Dirección General de Universidades.Ministerio de Educación y Ciencia. Programa de Estudios y Análisis de la Dirección General de Universidades

Late gadolinium enhancement distribution patterns in non-ischemic dilated cardiomyopathy: Genotype-phenotype correlation.

AIMS Late gadolinium enhancement (LGE) is frequently found in patients with dilated cardiomyopathy (DCM), there is little information about its frequency and distribution pattern according to underlying genetic substrate. We sought to describe LGE patterns according to genotype and to analyze the risk of major ventricular arrhythmias (MVA) according to patterns. METHODS AND RESULTS Cardiac magnetic resonance findings and LGE distribution according to genetics was performed in a cohort of 600 DCM patients followed at 20 Spanish centers. After exclusion of individuals with multiple causative gene variants or with variants in infrequent DCM-causing genes, 577 patients (34% females, mean age 53.5 years, LVEF 36.9 ± 13.9%) conformed the final cohort. A causative genetic variant was identified in 219 (38%) patients and 147 (25.5%) had LGE. Significant differences were found comparing LGE patterns between genes (P < 0.001). LGE was absent or rare in patients with variants in TNNT2, RBM20 and MYH7 (0%, 5% and 20%, respectively). Patients with variants in DMD, DSP and FLNC showed predominance of LGE subepicardial pattern (50%, 41% and 18%, respectively) whereas patients with variants in TTN, BAG3, LMNA and MYBPC3 showed unspecific LGE patterns. Genetic yield differed according to LGE pattern. Patients with subepicardial, lineal midwall, transmural, right ventricular insertion points or with combination of LGE patterns showed increased risk of MVA compared with patients without LGE. CONCLUSION LGE patterns in DCM has a specific distribution according to the affected gene. Certain LGE patterns are associated with increased risk of MVA and with increased yield of genetic testing.This study has been funded by Instituto Salud Carlos III (ISCIII) through the projects ‘PI18/0004, PI19/01283, and PI20/0320’ (co-funded by the European Regional Development Fund/European Social Fund ‘A way to make Europe’/‘Investing in your future’). The Hospital Universitario Puerta de Hierro, the Hospital Universitario Vall Hebrón, the Hospital General Universitario Gregorio Marañón, and the Hospital Universitario Virgen de la Arrixaca are members of the European Reference Network for Rare, Low Prevalence, and Complex Diseases of the Heart (ERN GUARD-Heart). F.d.F. receives grant support from ISCIII (CM20/00101). R.B. receives funding from the Obra Social la Caixa Foundation. M.B. receives funding from ISCIII (PI19/01283). The CNIC is supported by the ISCIII, Ministerio de Ciencia e Innovación of the Spanish Government (MCIN), and Pro CNIC Foundation.S