Autonomous Distribution of Programmable Multiqubit Entanglement in a Dual-Rail Quantum Network.

We propose and analyze a scalable and fully autonomous scheme for preparing spatially distributed multiqubit entangled states in a dual-rail waveguide QED setup. In this approach, arrays of qubits located along two separated waveguides are illuminated by correlated photons from the output of a nondegenerate parametric amplifier. These photons drive the qubits into different classes of pure entangled steady states, for which the degree of multipartite entanglement can be conveniently adjusted by the chosen pattern of local qubit-photon detunings. Numerical simulations for moderate-sized networks show that the preparation time for these complex multiqubit states increases at most linearly with the system size and that one may benefit from an additional speedup in the limit of a large amplifier bandwidth. Therefore, this scheme offers an intriguing new route for distributing ready-to-use multipartite entangled states across large quantum networks, without requiring any precise pulse control and relying on a single Gaussian entanglement source only.

Conservation of Native Wild Ivory-White Olives from the MEDES Islands Natural Reserve to Maintain Virgin Olive Oil Diversity.

Food diversity, and in particular genetic diversity, is being lost at an alarming rate. Protection of natural areas is crucial to safeguard the world's threatened species. The Medes Islands (MI), located in the northwest Mediterranean Sea, are a protected natural reserve. Wild olive trees also known as oleasters make up part of the vegetation of the Meda Gran island. Among them, in 2012, a wild albino ivory-white olive tree with fruit was identified. Fruits were collected from this tree and their seeds were first sown in a greenhouse and then planted in an orchard for purposes of ex situ preservation. Seven out of the 78 seedling trees obtained (12%) produced ivory-white fruits. In autumn 2018, fruits from these trees were sampled. Although the fruits had low oil content, virgin olive oil with unique sensory, physicochemical, and stability characteristics was produced. With respect to the polyphenols content, oleacein was the main compound identified (373.29 ± 72.02 mg/kg) and the oleocanthal was the second most abundant phenolic compound (204.84 ± 52.58 mg/kg). Regarding pigments, samples were characterized by an intense yellow color, with 12.5 ± 4.6 mg/kg of chlorophyll and 9.2 ± 3.3 mg/kg of carotenoids. Finally, oleic acid was the main fatty acid identified. This study explored the resources of the natural habitat of the MI as a means of enrichment of olive oil diversity and authenticity of this traditional Mediterranean food.

Cirugía laparoscópica de la hernia paraesofágica congénita en neonatos y lactantes / Laparoscopic surgery of congenital paraesophageal hernia in newborns and infants

Introducción: Las hernias paraesofágicas congénitas (HPC) sonuna patología poco frecuente en la edad pediátrica. Pueden presentarclínica desde la época neonatal precisando una reparación quirúrgicatemprana. Casos clínicos: Presentamos 3 casos diagnosticados de HPC tipoIV en pacientes menores de 1 año, que presentaron síntomas desdela época neonatal, en los que se ha realizado reparación quirúrgicalaparoscópica. Un paciente presentaba diagnóstico prenatal. La edaden el momento de la cirugía fue 6 días, 36 días y 9 meses. El pesoen el momento de la cirugía fue de 3,60 kg, 3,79 kg y 8,20 kg. Lospacientes fueron intervenidos por laparoscopia realizando excisión delsaco herniario, cierre de pilares diafragmáticos, colocación de mallareabsorbible de refuerzo y una funduplicatura Nissen. El tiempo mediode cirugía fue de 130 minutos. No hubo complicaciones intraoperato-rias. Un paciente presentó una hernia de deslizamiento que se reparóposteriormente sin complicaciones. El tiempo medio de seguimientoes de 24 meses.(AU)

Introduction: Congenital paraesophageal hernia (CPH) is a rarepathology in pediatric patients. Clinical signs may occur as early as innewborns, which means it requires early surgical repair. Clinical cases: This is a series of three patients under 1 year of agediagnosed with type IV CPH – with symptoms occurring since they werenewborns – who underwent laparoscopic surgical repair. One patient hadbeen diagnosed prenatally. Age at surgery was 6 days, 36 days, and 9months, respectively. Weight at surgery was 3.60 kg, 3.79 kg, and 8.20kg, respectively. The patients underwent laparoscopy, with removal ofthe hernia sac, closure of the diaphragmatic pillars, placement of a rein-forcement absorbable mesh, and Nissen fundoplication. Mean operatingtime was 130 minutes. No intraoperative complications were recorded. One patient developed a sliding hernia, which was subsequently repairedwithout complications. Mean follow-up time was 24 months.(AU)

Development of a citrus genome-wide EST collection and cDNA microarray as resources for genomic studies.

A functional genomics project has been initiated to approach the molecular characterization of the main biological and agronomical traits of citrus. As a key part of this project, a citrus EST collection has been generated from 25 cDNA libraries covering different tissues, developmental stages and stress conditions. The collection includes a total of 22,635 high-quality ESTs, grouped in 11,836 putative unigenes, which represent at least one third of the estimated number of genes in the citrus genome. Functional annotation of unigenes which have Arabidopsis orthologues (68% of all unigenes) revealed gene representation in every major functional category, suggesting that a genome-wide EST collection was obtained. A Citrus clementina Hort. ex Tan. cv. Clemenules genomic library, that will contribute to further characterization of relevant genes, has also been constructed. To initiate the analysis of citrus transcriptome, we have developed a cDNA microarray containing 12,672 probes corresponding to 6875 putative unigenes of the collection. Technical characterization of the microarray showed high intra- and inter-array reproducibility, as well as a good range of sensitivity. We have also validated gene expression data achieved with this microarray through an independent technique such as RNA gel blot analysis.

Explaining the end of the hominoid experiment in Europe.

The Vallesian Crisis involved the extinction of most of the hominoids that settled successfully in Europe during the middle and early Late Miocene, including Dryopithecus, Ankarapithecus and Graecopithecus. This event has been dated at 9.6 Ma, predating by more than one million years the spread of the C4 grasses and the retreat of forests over large parts of the globe at 7-8 Ma. The finding of macrofloral remains in the Terrassa section (Vallès-Penedès Basin) sheds new light on the nature of vegetational change associated with the hominoid extinction. This section presents an abundant late Vallesian vertebrate fauna and has been accurately dated at 9.2 - 9 Ma by paleomagnetism. Therefore, it provides the best indication of the kind of vegetation that occupied the area after the Vallesian Crisis. It is suggested that the extinction of the late Miocene Western European hominoids was not related to the spread of grasses, but to a significant increase of a floral association dominated by deciduous trees.

Early human occupation of Western Europe: paleomagnetic dates for two paleolithic sites in Spain.

The lacustrine deposits infilling the intramontane Guadix-Baza Basin, in the Betic Range of Southern Spain, have yielded abundant well-preserved lithic artifacts. In addition, the lake beds contain a wide range of micromammals including Mimomys savini and Allophaiomys burgondiae and large mammals such as Mammuthus and Hippopotamus together with the African saber-toothed felid Megantereon. The association of the lithic artifacts along with the fossil assemblages, themselves of prime significance in the Eurasian mammal biochronology, is providing new insight into the controversy of the human settlement in Southern Europe. Despite the importance of the artifacts and fossil assemblage, estimates of the geological age of the site are still in conflict. Some attempts at dating the sediments have included biochronology, uranium series, amino acid racemization, and stratigraphic correlation with other well-dated sections in the basin, but so far have failed to yield unambiguous ages. Here we present paleomagnetic age dating at the relevant localities and thus provide useful age constraints for this critical paleoanthropological and mammal site. Our data provide firm evidence for human occupation in Southern Europe in the Lower Pleistocene, around 1 mega-annum ago. The current view of when and how hominids first dispersed into Europe needs to be reevaluated.