Conjunctive queries with negation over DL-Lite: a closer look

While conjunctive query (CQ) answering over DL-Lite has been studied extensively, there have been few attempts to analyse CQs with negated atoms. This paper deepens the study of the problem. Answering CQs with safe negation and CQs with a single inequality over DL-Lite with role inclusions is shown to be undecidable, even for a fixed TBox and query.Without role inclusions, answering CQs with one inequality is P-hard and with two inequalities CoNP-hard in data complexity

Robust Trend Analysis in Environmental Remote Sensing: A Case Study of Cork Oak Forest Decline.

We introduce a novel methodological framework for robust trend analysis (RTA) using remote sensing data to enhance the accuracy and reliability of detecting significant environmental trends. Our approach sequentially integrates the Theil–Sen (TS) slope estimator, the Contextual Mann–Kendall (CMK) test, and the false discovery rate (FDR) control. This comprehensive method addresses common challenges in trend analysis, such as handling small, noisy datasets with outliers and issues related to spatial autocorrelation, cross-correlation, and multiple testing. We applied this RTA workflow to study tree cover trends in Los Alcornocales Natural Park (Southern Spain), Europe’s largest cork oak forest, analysing interannual changes in tree cover from 2000 to 2022 using Terra MODIS MOD44B data. Our results reveal that the TS estimator provides a robust measure of trend direction and magnitude, but its effectiveness is dramatically enhanced when combined with the CMK test. This combination highlights significant trends and effectively corrects for spatial autocorrelation and cross-correlation, ensuring that genuine environmental signals are distinguished from statistical noise. Unlike previous workflows, our approach incorporates the FDR control, which successfully filtered out 29.6% of false discoveries in the case study, resulting in a more stringent assessment of true environmental trends captured by multi-temporal remotely sensed data. In the case study, we found that approximately one-third of the area exhibits significant and statistically robust declines in tree cover, with these declines being geographically clustered. Importantly, these trends correspond with relevant changes in tree cover, emphasising the ability of RTA to detect relevant environmental changes. Overall, our findings underscore the crucial importance of combining these methods, as their synergy is essential for accurately identifying and confirming robust environmental trends

Estudio de viabilidad de la reutilización de baños de tintura textil

En este trabajo se hace un estudio de viabilidad técnica y económica de la integración de un tratamiento de decoloración de baños agotados de tintura a un proceso de tintura téxtil convencional con el objetivo de reutilizar el agua tratada y en especial, de aprovechar la sal necesaria para realizar la tintura. El tratamiento de decoloración se lleva a cabo en una celula electroquímica asistida por luz ultravioleta y el agua decolorada es almacenada en un deposito para su posterior reutilización en el proceso de tintura. La implementación de este sistema de tratamiento y reutilización permite ahorrar el 70% de agua y el 60% de la sal necesarios para preparar los banos de tintura. Lo que aparte de reportar una horro económico directo, también supone un ahorro en el cánon de vertido de aguas residuales. Por el contrario, si se quiere hacer un proceso ininterrumpido de sucesivas reutilizaciones, en algunas ocasiones y en función del color requerido, debe aumentarse la cantidad de colorante respecto de la fórmula inicial para evitar una merma en la calidad de las tinturas y precisamente por ello es importante la realización del estudio económico para demostrar su viabilidad

Quantum Interference in Single Molecule Electronic Systems

We present a general analytical formula and an ab initio study of quantum interference in multi-branch molecules. Ab initio calculations are used to investigate quantum interference in a benzene-1,2-dithiolate (BDT) molecule sandwiched between gold electrodes and through oligoynes of various lengths. We show that when a point charge is located in the plane of a BDT molecule and its position varied, the electrical conductance exhibits a clear interference effect, whereas when the charge approaches a BDT molecule along a line normal to the plane of the molecule and passing through the centre of the phenyl ring, interference effects are negligible. In the case of olygoynes, quantum interference leads to the appearance of a critical energy $E_c$, at which the electron transmission coefficient $T(E)$ of chains with even or odd numbers of atoms is independent of length. To illustrate the underlying physics, we derive a general analytical formula for electron transport through multi-branch structures and demonstrate the versatility of the formula by comparing it with the above ab-initio simulations. We also employ the analytical formula to investigate the current inside the molecule and demonstrate that large counter currents can occur within a ring-like molecule such as BDT, when the point charge is located in the plane of the molecule. The formula can be used to describe quantum interference and Fano resonances in structures with branches containing arbitrary elastic scattering regions connected to nodal sites.Comment: 12 pages, 11 figure

Rotura aguda completa del ligamento colateral metacarpo-falángico radial del pulgar: una lesión grave infrecuente

El ligamento colateral radial es el principal estabilizador articular contra las fuerzas de estrés en aducción de la articulación metacarpofalángica del pulgar. Esta lesión infrecuente, pasa a menudo desapercibida, desarrollándose una inestabilidad articular sintomática y, posteriormente, una artrosis secundaria. Aunque tradicionalmente se ha recomendado el tratamiento conservador de estas lesiones, estudios recientes han documentado mejores resultados funcionales cuando se realiza su reparación quirúrgica, especialmente en las lesiones completas.The radial collateral ligament is the primary stabilizer against stress forces in adduction of the metacarpophalangeal joint of the thumb. This uncommon injury may go unnoticed, resulting in symptomatic joint instability and secondary osteoarthritis. Although traditionally it has been recommended conservative treatment of these lesions, recently studies have documented better functional outcomes with surgical repair of complete ruptures

Fascitis necrotizante fulminante tras inyección intramuscular glútea

La fascitis necrotizante es una infección grave que afecta a la fascia y al tejido celular circundante, de diagnóstico complejo y que asocia una mortalidad elevada. Se han descrito múltiples factores de riesgo, siendo controvertida su asociación con la administración intramuscular de antiinflamatorios no esteroideos. Se presenta una serie de 3 casos clínicos documentados en nuestro departamento de fascitis necrotizante glútea tras inyección intramuscular, adjuntando una revisión de literatura.Necrotizing fasciitis is a serious infection that affects the fascia and the surrounding soft tissues, its diagnosis is complex and it associates with a high mortality. Despite being described many risk factors, the as - sociation with non-steroidal anti-inflammatory drugs remains controversial. We report a serie of 3 clinical cases of necrotizing fasciitis after muscle gluteal injection registered in our department. A medical literature review is presented as well

Cambios edáficos en las Marismas de Doñana y su relación con la invasión de Azolla filiculoide

2 páginas, 7 referencias. En el Capítulo: Degradación de suelos y desertificación. Simposio celebrado en Fuerteventura, 16-20, septiembre, 2007. Los editores son del Departamento de Edafología y Geología, Universidad de La Laguna.La Marisma de de Doñana es una extensa planicie dominada por suelos arcillosos, calcáreos y salinos (Clemente et al., 1998) que se inunda estacionalmente -por efecto de la lluvia y de algunos arroyos- y acoge a una de las poblaciones de aves acuáticas más importantes de Europa (Clemente et al. 2004). En 2001 uno de los autores (J.L. Espinar) documentó por primera vez la presencia del helecho de origen americano Azolla filliculoides, una especie invasora con capacidad para fijar el N atmosférico, que acabó extendiéndose por el humedal en los años siguientes (Cobo y Bañuls, 2005) En este trabajo se analizan los cambios ambientales ocurridos en la marisma de Doñana con anterioridad a la invasión, en relación con lo acaecido en anteriores episodios de invasión por Azolla de otras áreas naturales.Peer reviewe

Natural and anthropogenic alterations of the soil affect body condition of the fossorial amphisbaenian Trogonophis wiegamnni in North Africa

Soil alteration is one of the major threats in arid environments, which can have serious consequences for soil biodiversity. However, the ecology of fossorial animals is poorly understood and their low conspicuousness may lead researchers and managers to overlook potential conservation problems. Amphisbaenians are fossorial reptiles and, because of their secretive habits, there is a chronic almost lack of data on their conservation state. Here, we examined the effects of diverse natural (salinization and seagulls influence) and anthropogenic factors (disturbance of the soil physical structure and lead contamination) that affect physical and chemical properties of the soil on body condition of Trogonophis wiegmanni amphisbaenians from the Chafarinas Islands, in North Africa. Results indicated that soil salinization and human induced mechanical disturbance and compaction of the soil affected negatively to body condition of amphisbaenians. In contrast, the increase in organic matter and heavy metals pollutants in the soil, either because of the seagull or anthropogenic influence, did not seem to affect body condition of amphisbaenians. We suggest potential management techniques to solve these problems and emphasize the need for periodic surveys of subterranean herpetofauna to prevent future conservation problems.Legal authorization and financial support was provided by the Organismo Autónomo de Parques Nacionales with additional financial support from a Ministerio de Ciencia e Innovación project (CGL2011-24150/BOS) and from the Regional Government of Andalusia project BIOGEOBIRD (P09-RNM-4987) and FEDER funds.Peer reviewe

Occurrence of Xylella fastidiosa in the Balearic Islands and potential distribution areas in the Iberian Peninsula

Las invasiones biológicas constituyen una de las principales amenazas a la economía y a la biodiversidad relacionadas con el cambio global. Recientemente, ha irrumpido en las Islas Baleares un organismo fitopatógeno muy dañino: Xylella fastidiosa. Es una bacteria confinada en el xilema de las plantas que causa mortalidad sin curación en un gran número de cultivos leñosos de gran importancia, entre los cuales se encuentran el olivo, la vid, el almendro y los cítricos. En este trabajo abordamos una aproximación al estudio de la distribución del patógeno en las Islas Baleares y desarrollamos un modelo de distribución potencial de Xylella fastidiosa en la península ibérica calibrado con registros de presencia colectados en el archipiélago. Los resultados preliminares apuntan a una alta incidencia del Xylella fastidiosa en las Islas Baleares y proyectan una amplia distribución potencial del patógeno en la península ibérica, especialmente allí donde las temperaturas mínimas del mes más frío son más son más suaves.Biological invasions are one of the main threats related to the economy and the biodiversity related to global change. Recently, a very harmful phytopathogenic organism has been detected in the Balearic Islands: Xylella fastidiosa. It is a plant pathogen that causes mortality without cure in a large number of important woody crops such as olives, grapevines, almonds and citrus trees. This paper discusses an approach to the study of the spatial distribution of the pathogen in the Balearic Islands and a potential distribution model of the pathogen in the Iberian Peninsula, which is developed and based on the records of its presence in the Balearic Islands. The preliminary results point to a high incidence of Xylella fastidiosa in the Balearic Islands and they forecast a wide potential distribution of Xylella fastidiosa in the Iberian Peninsula, especially where the minimum temperatures of coldest month of the year are milder