Resolving The Moth at Millimeter Wavelengths

HD 61005, also known as "The Moth," is one of only a handful of debris disks that exhibit swept-back "wings" thought to be caused by interaction with the ambient interstellar medium (ISM). We present 1.3 mm Submillimeter Array (SMA) observations of the debris disk around HD 61005 at a spatial resolution of 1.9 arcsec that resolve the emission from large grains for the first time. The disk exhibits a double-peaked morphology at millimeter wavelengths, consistent with an optically thin ring viewed close to edge-on. To investigate the disk structure and the properties of the dust grains we simultaneously model the spatially resolved 1.3 mm visibilities and the unresolved spectral energy distribution. The temperatures indicated by the SED are consistent with expected temperatures for grains close to the blowout size located at radii commensurate with the millimeter and scattered light data. We also perform a visibility-domain analysis of the spatial distribution of millimeter-wavelength flux, incorporating constraints on the disk geometry from scattered light imaging, and find suggestive evidence of wavelength-dependent structure. The millimeter-wavelength emission apparently originates predominantly from the thin ring component rather than tracing the "wings" observed in scattered light. The implied segregation of large dust grains in the ring is consistent with an ISM-driven origin for the scattered light wings.Comment: 10 pages, 6 figure

New constrains on the thickness of the Semail Ophiolite in the Northern Emirates

Near-critical angle and refraction studies were performed at IFP as piggyback studies during a wider programme of crustal imagery operated by WesternGeco on behalf of the Ministry of Energy of the United Arab Emirates. The main objective is to illuminate the base of the Semail Ophiolite along part of a regional transect (D1) crossing the Northern Emirates from the Gulf of Oman in the east up to the Arabian Gulf in the west. Results confirm that the sole thrust of the ophiolite has been folded during the Miocene stacking of the underlying Arabian Platform. The thickness of the ophiolite grades from zero in the core of the Masafi tectonic window, up to a maximum of 1.7 km below the axial part of a successor basin which has been preserved on top of the serpentinite west of the current exposure of the main ultramafic bodies. Apatite grains extracted from plagiogranites of the Semail ophiolite also provide evidences for an early unroofing of the gabbros and plagiogranites during the Late Cretaceous, with cooling ages of 72-76 Ma at the top of the ophiolite in the east (not far from the Fujairah coast line), which are coeval and also consistent with the occurrence of Late Cretaceous paleo-soils, rudists and paleo-reef deposits on top of serpentinized ultramafics in the west. Younger cooling ages of 20 Ma have been also found at the base of the ophiolite near Masafi, in the core of the nappe anticline, thus providing a Neogene age for the refolding of the allochthon and stacking of underlying parautochthonous platform carbonate units. These results, together with the occurrence of a thick sedimentary pile illuminated below the metamorphic sole along the north-trending, strike-profile D2 running parallel to the axis of the Masafi window, should stimulate a renewal of the exploration in the central part of the Emirate foothills, where the ophiolite thickness is currently limited, and was already drastically reduced by the end of its Late Cretaceous obduction. © 2010 Saudi Society for Geosciences

First records of Chrysotoxum volaticum Séguy, 1961 from Europe and Platycheirus marokkanus Kassebeer, 1998 from Spain (Diptera: Syrphidae) together with additional records of Spanish Chrysotoxum Meigen, 1803

The first European records of Chrysotoxum volaticum Séguy, 1961 from Spain and France, and Platycheirus marokkanus Kassebeer, 1998 from Spain are provided. These are further examples of North African species also present in the Iberian Peninsula. Diagnostic characters are given to separate C. volaticum and the similar Chrysotoxum bicinctum (Linnaeus, 1758), and additional records of other Chrysotoxum Meigen, 1803 hoverflies from Spain are also reported. We also provide DNA barcodes for C. volaticum and discuss the utility of DNA barcoding to identify species in the genus Chrysotoxum.The study of the material of Chrysotoxum in the NHM was made possible by receiving support from the SYNTHESYS project http://www.synthesys.info/ which is financed by European Community Research Infrastructure Action under the FP6 “Structuring the European Research Area” Programme. Financial support was also provided by the Spanish Ministerio de Educación y Ciencia (projects CGL2005-07213/BOS and CGL2006-13847-C02-01). Antonio Ricarte’s position (Ref. UATAL05) at the University of Alicante is funded by the ‘Vicerrectorado de Investigación y Transferencia de Conocimiento’

A distribuição eletrônica de evidências em saúde permite a criação de novas medidas de relevância informacional

Na ausência de medidas para avaliar qual informação gerada no contexto acadêmico é útil para a prática clínica, há o risco de se adotar o número de citações recebidas pelo artigo científico. Para avaliar se essa medida é eficaz para identificar a relevância clínica da informação, foi realizado um estudo quantitativo com médicos de família canadenses. Eles avaliaram o uso potencial de informação sumarizada oriunda de artigos científicos por meio do Information Assessment Method, do qual foi derivado uma nova medida associada ao uso da informação na prática clínica, CRII. Resultados demonstram que citações não capturam relevância clínica da informação.Sociedad Argentina de Informática e Investigación Operativ

A distribuição eletrônica de evidências em saúde permite a criação de novas medidas de relevância informacional

Na ausência de medidas para avaliar qual informação gerada no contexto acadêmico é útil para a prática clínica, há o risco de se adotar o número de citações recebidas pelo artigo científico. Para avaliar se essa medida é eficaz para identificar a relevância clínica da informação, foi realizado um estudo quantitativo com médicos de família canadenses. Eles avaliaram o uso potencial de informação sumarizada oriunda de artigos científicos por meio do Information Assessment Method, do qual foi derivado uma nova medida associada ao uso da informação na prática clínica, CRII. Resultados demonstram que citações não capturam relevância clínica da informação.Sociedad Argentina de Informática e Investigación Operativ

A distribuição eletrônica de evidências em saúde permite a criação de novas medidas de relevância informacional

Na ausência de medidas para avaliar qual informação gerada no contexto acadêmico é útil para a prática clínica, há o risco de se adotar o número de citações recebidas pelo artigo científico. Para avaliar se essa medida é eficaz para identificar a relevância clínica da informação, foi realizado um estudo quantitativo com médicos de família canadenses. Eles avaliaram o uso potencial de informação sumarizada oriunda de artigos científicos por meio do Information Assessment Method, do qual foi derivado uma nova medida associada ao uso da informação na prática clínica, CRII. Resultados demonstram que citações não capturam relevância clínica da informação.Sociedad Argentina de Informática e Investigación Operativ

Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources

"This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving."[EN] Podosphaera xanthii is the most important causal agent of powdery mildew in melon, a crop ranked within the most economically important species worldwide. The best strategy to face this fungus disease, which causes important production losses, is the development of genetically resistant cultivars. Genetic breeding programmes require sources of resistance, and a few ones have been reported in melon, mostly in Momordica and Acidulus horticultural groups. However, the existence of many races that reduces the durability of the resistance makes necessary to find new resistant genotypes with different genetic backgrounds. In this work, Brazilian germplasm, together with a set of Indian landraces, and the COMAV¿s (Institute for the Conservation and Breeding of Agricultural Biodiversity) melon core collection, representing the whole variability of the species, were assessed for resistance against some common races in Spain and Brazil and genotyped with a 123-SNP (single nucleotide polymorphisms) genotyping platform to study the molecular relationships of the resistant accessions. In the first experiment, carried out in Valencia (Spain) in 2013, seventy-nine melon accessions were evaluated using artificial inoculation. Five accessions selected as resistant were also evaluated against races 1, 3, and 5 in Mossoró (Brazil, 2015) and against race 3.5 in Valencia (2016) under greenhouse conditions, and under four field conditions in Brazil. The accessions, AL-1, BA-3, CE-3, and RN-2, within the Brazilian collection, presented resistance against all the races of P. xanthii assayed in all conditions tested. AL-1, CE-3 and RN-2 were molecularly more similar to wild agrestis and Acidulus melons from Asia and Africa, while BA-3 grouped with Momordica types. Molecular analysis also confirmed that these new Brazilian sources of resistance differ from those previously reported, constituting interesting materials to encourage genetic breeding programmes, especially in Brazil and Spain.This work was supported by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq ( Processes: 485739/2013-5; 312315/2013-9) and CAPES-DPGU (294/2013) and by the projects funded by the Ministerio de Economia y Competitividad AGL2014-53398-C2-1-R and AGL2014-53398-C2-2-R (jointly funded by FEDER). We also thank Sakata Seed Sudamerica Ltda for the inoculum source for the different P. xanthii races employed.Nunes, EWLP.; Esteras Gómez, C.; Ricarte, AO.; Martínez-Pérez, EM.; Gómez-Guillamon, ML.; Nunes, GHS.; Picó Sirvent, MB. (2017). Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources. Annals of Applied Biology. 171(2):214-228. https://doi.org/10.1111/aab.12370S214228171

Genotype x environment interaction, adaptability and stability of 'Piel de Sapo' melon hybrids through mixed models.

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Self-collected saliva for SARS-CoV-2 detection: A prospective study in the emergency room

Current diagnostic standards involve severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) detection in nasopharyngeal swabs (NPS), but saliva is an attractive and noninvasive option for diagnosis. The objectives were to determine the performance of saliva in comparison with NPS for detecting SARS-CoV-2 and to compare the optimized home brew reverse-transcription polymerase chain reaction (RT-PCR) with a commercial RT-PCR. Paired NPS and saliva specimens were prospectively collected and tested by RT-PCR from patients presenting at an emergency room with signs and symptoms compatible with coronavirus disease-2019. A total of 348 samples from 174 patients were tested by RT-PCR assays. Among 174 patients with symptoms, 63 (36%) were SARS-CoV-2 positive in NPS using the optimized home-brew PCR. Of these 63 patients, 61 (98%) were also positive in saliva. An additional positive SARS-CoV-2 saliva was detected in a patient with pneumonia. Kappa Cohen´s coefficient agreement between NPS and saliva was 0.96 (95% confidence interval [CI], 0.90?0.99). Median Ct values in NPS versus saliva were 18.88 (interquartile range [IQR], 15.60?23.58; range, 11.97?38.10) versus 26.10 (IQR, 22.75?30.06; range, 13.78?39.22), respectively (p <.0001). The optimized home-brew RT-PCR demonstrated higher analytical and clinical sensitivity compared with the commercial RT-PCR assay. A high sensitivity (98%) and agreement (kappa 0.96) in saliva samples compared to NPS was demonstrated when using an optimized home-brew PCR even when the viral load in saliva was lower than in NPS. This noninvasive sample is easy to collect, requires less consumable and avoids discomfort to patients. Importantly, self-collection of saliva can diminish exposure to healthcare personnel.Fil: Echavarría, Marcela Silvia. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Reyes, Noelia Soledad. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; ArgentinaFil: Rodriguez, Pamela Elizabeth. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ypas, Martin. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; ArgentinaFil: Ricarte, Joaquina Carmen. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rodriguez, María P.. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; ArgentinaFil: Pérez, Matías Gastón. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Seoane, Alejandro. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; ArgentinaFil: Martinez, Alfredo. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; ArgentinaFil: Videla, Cristina Mónica. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Stryjewski, Martin E.. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; ArgentinaFil: Carballal, Guadalupe. Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin