Spatially resolved self-consistent spectral modelling of jellyfish galaxies from MUSE with FADO: trends with mass and stripping intensity

We present a spatially resolved stellar population analysis of 61 jellyfish galaxies and 47 control galaxies observed with ESO/MUSE attempting to understand the general trends of the stellar populations as a function of the stripping intensity and mass. This is the public sample from the GASP programme, with $0.01 < z < 0.15$ and $8.9 <\log(M_{\star}/M_{\odot}) < 12.0$. We apply the spectral population synthesis code FADO to fit self-consistently both the stellar and nebular contributions to the spectra of the sources. We present 2D morphological maps for mean stellar ages, metallicities, gas-phase oxygen abundances, and star formation rates for the galaxies with Integrated Nested Laplace Approximation ({\sc inla}), which is efficient in reconstructing spatial data of extended sources. We find that ``extreme stripping'' and ``stripping'' galaxies are typically younger than the other types. Regarding stellar and nebular metallicities, the ``stripping'' and ``control passive'' galaxies are the most metal-poor. Based on the phase space for jellyfish cluster members we find trends in ages, metallicities, and abundances with different regions of the diagram. We also compute radial profiles for the same quantities. We find that both the stripping and the stellar masses seem to influence the profiles, and we see differences between various groups and distinct mass bins. The radial profiles for different mass bins present relations already shown in the literature for undisturbed galaxies, i.e., profiles of ages and metallicities tend to increase with mass. However, beyond $\sim0.75$ effective radius, the ages of the most massive galaxies become similar to or lower than the ages of the lower mass ones.Comment: Accepted by MNRAS. 71 pages (13 of main text and 58 of supplementay material). 123 figure

Morbidade e sobrevida em AIDS avançada no Rio de Janeiro, Brasil

Opportunistic diseases (OD) are the most common cause of death in AIDS patients. To access the incidence of OD and survival in advanced immunodeficiency, we included 79 patients with AIDS treated at Hospital Evandro Chagas (FIOCRUZ) from September 1997 to December 1999 with at least one CD4 countAs doenças oportunistas (DO) são a causa mais comum de morte em pacientes com AIDS. Para acessar a incidência de DO e a sobrevida na imunodeficiência avançada, foram incluídos 79 pacientes com AIDS tratados no Hospital Evandro Chagas (FIOCRUZ) no período de Setembro de 1997 a Dezembro de 1999, com ao menos uma contagem de células CD

Impactos ambientais gerados pela construção e operação de rodovias

Shedding production is the dominant factor at the time of planning the construction of a highway. Transferring products from one corner to another is the goal of globalization that gives anyone a product regardless of where they are located in the world. However, it is not possible to carry out this transit by air or water in most cases. By the disposition of the continents and the high prices of the air cargo transport to send products by land is more attractive whenever possible. In this way, more roads means less cost, more practicality and speed in the delivery of goods. However, building and operating a highway requires a lot of care, especially with the environment and road quality. This paper presents the characteristics of the roads in Brazil, the expansion process and the challenges faced for the construction and operation of highways. An excerpt was selected in the state of Minas Gerais between the municipalities of Águas Formosas and Novo Oriente de Minas and raised the positive and negative social, environmental and structural impacts that occurred during the construction, paving and operation of the section called highway MG-409 e MG -105.El flujo de producción es el factor dominante en el momento de la planificación de la construcción de una carretera. Transferir productos de un canto a otro es el objetivo de la globalización que ofrece a cualquier persona un producto independientemente de donde esté ubicado en el mundo. Sin embargo, no es posible realizar este tránsito vía aérea o acuática la mayoría de las veces. Por la disposición de los continentes y los altos precios del transporte de cargas aéreas enviar productos por vía terrestre es más atractivo siempre que sea posible. De esta forma, más carreteras significa menor costo, más practicidad y rapidez en la entrega de mercancías. Sin embargo, construir y operar una carretera requiere muchos cuidados, principalmente con el medio ambiente y calidad de las vías. Este trabajo presenta las características de las vías de Brasil, el proceso de expansión y los desafíos enfrentados para la construcción y operación de las carreteras. Se eligió un trecho en el estado de Minas Gerais entre los municipios de Aguas Formosas y Nuevo Oriente de Minas y levantado cuáles los impactos positivos y negativos sociales, ambientales y estructurales ocurridos durante la construcción, pavimentación y operación del tramo denominado carretera MG-409 y MG -105.Escoar produção é o fator dominante no momento de planejamento da construção de uma rodovia. Transferir produtos de um canto a outro é o objetivo da globalização que disponibiliza a qualquer pessoa um produto independentemente de onde esteja localizado no mundo. Entretanto não é possível realizar esse trânsito via aérea ou aquática na maioria das vezes. Pela disposição geográfica dos continentes e dos altos preços do transporte de cargas aéreas, enviar produtos por via terrestre, sempre que possível, é mais atrativo. Dessa forma, mais estradas significa menor custo, mais praticidade e rapidez na entrega de mercadorias. Entretanto construir e operar uma rodovia requer muitos cuidados, principalmente com o meio ambiente e qualidade das vias. Esse trabalho apresenta as características das vias do Brasil, o processo de expansão e os desafios enfrentados para construção e operação das rodovias. Foi escolhido um trecho no estado de Minas Gerais entre os municípios de Águas Formosas e Novo Oriente de Minas e levantado quais os impactos positivos e negativos sociais, ambientais e estruturais ocorridos durante a construção, pavimentação e operação do trecho denominado rodovia MG-409 e MG -105

Sub-THz and H{\alpha} activity during the preflare and main phases of a GOES class M2 event

Radio and optical observations of the evolution of flare-associated phenomena have shown an initial and rapid burst at 0.4 THz only followed subsequently by a localized chromospheric heating producing an H{\alpha} brightening with later heating of the whole active region. A major instability occurred several minutes later producing one impulsive burst at microwaves only, associated with an M2.0 GOES X-ray flare that exhibited the main H{\alpha} brightening at the same site as the first flash. The possible association between long-enduring time profiles at soft X-rays, microwaves, H{\alpha} and sub-THz wavelengths is discussed. In the decay phase the H{\alpha} movie shows a disrupting magnetic arch structure ejecting dark, presumably chromospheric, material upwards. The time sequence of events suggests genuine interdependent and possibly non-thermal instabilities triggering phenomena, with concurrent active region plasma heating and material ejection.Comment: Accepted by Astrophysical Journal, October 13, 201

Results of an Expert Consensus Survey on the Treatment of Pulmonary Arterial Hypertension With Oral Prostacyclin Pathway Agents

Background Treatment of pulmonary arterial hypertension (PAH) has evolved substantially over the past two decades and varies according to etiology, functional class (FC), hemodynamic parameters, and other clinical factors. Current guidelines do not provide definitive recommendations regarding the use of oral prostacyclin pathway agents (PPAs) in PAH. To provide guidance on the use of these agents, an expert panel was convened to develop consensus statements for the initiation of oral PPAs in adults with PAH. Methods A systematic literature search was conducted using MEDLINE. The established RAND/University of California Los Angeles appropriateness method, which incorporates the Delphi method and the nominal group technique, was used to create consensus statements. Idiopathic, heritable, repaired congenital heart defect, and drug- or toxin-induced PAH (IPAH+) was considered as one etiologic grouping. The process was focused on the use of oral treprostinil or selexipag in patients with IPAH+ or connective tissue disease-associated PAH and FC II or III symptoms receiving background dual endothelin receptor antagonist/phosphodiesterase type 5 inhibitor therapy. Results The panel developed 14 consensus statements regarding the appropriate use of oral PPAs in the target population. The panel identified 13 clinical scenarios in which selexipag may be considered as a treatment option. Conclusions The paucity of clinical evidence overall, and particularly from randomized trials in this setting, creates a gap in knowledge. These consensus statements are intended to aid physicians in navigating treatment options and using oral PPAs in the most appropriate manner in patients with PAH

Combinations of Metarhizium anisopliae with chemical insecticides and their effectiveness in Mahanarva fimbriolata (Hemiptera: Cercopidae) control on sugarcane

Some insecticides can be used jointly with entomopathogenic fungi, and therefore the combi- nation of chemical and biological control measures can be a safe and effective method to con- trol insect pests. The aim of this study was to evaluate the costs and efficacy of combinations of Metarhizium anisopliae (Metschnikoff) Sorokin (Hypocreales: Clavicipitaceae) with thiameth- oxam and imidacloprid on spittlebug (Mahanarva fimbriolata (Stål); Hemiptera: Cercopidae) control on sugarcane. The experiment was conducted as a randomized block design (RBD) with 10 treatments and 4 replications. The treatments included a control (untreated), thia- −1 −1 12 −1 methoxam (250 g ha ), imidacloprid (700 g ha ), M. anisopliae (M. a.) (3 × 10 conidia ha ), A1 (3 × 10 12 M. a. conidia ha −1 + 65 g ha −1 of thiamethoxam), A2 (3 × 10 12 M. a. conidia ha −1 + 125 g ha −1 of thiamethoxam), A3 (3 × 10 12 M. a. conidia ha −1 + 187.5 g ha −1 of thiamethoxam), A4 (3 × 10 12 M. a. conidia ha −1 + 175 g ha −1 of imidacloprid), A5 (3 × 10 12 M. a. conidia ha −1 + 350 g ha −1 of imidacloprid), and A6 (3 × 10 12 M. a. conidia ha −1 + 525g ha −1 of imidacloprid). The reductions in the numbers of M. fimbriolata nymphs per treatment compared to the control were similar at 15 DAT (days after treatment) in all treatments except combination A5 (M. anisopliae and thiamethoxam). At 30 DAT, the numbers of nymphs were significantly reduced in all treatments except A3, and their effectiveness ranged from 14.28% to 92.85%. At 45 DAT the numbers of M. fimbriolata nymphs per treatment were significantly reduced in the following treatments: imidacloprid alone at 700g ha -1 , A1, A2, A3, A4 and A6; and the combinations A1 and A2 caused the lowest M. fimbriolata nymph infestations and effectiveness rates of 77.41 and 87.09 %, respectively. At 75 DAT the 2 best control efficacies occurred in treatments A1 (3 × 10 12 M. a. conidia ha -1 of + 65g ha -1 of thiamethoxam) (82.1%) and A5 (78.6%) (3 × 10 12 M. a. conidia ha −1 + 350 g ha −1 of imidacloprid). At 90 DAT the number of nymphs in the control had increased 2.8 fold over the number at 75 DAT. Very good control efficacies at 90 DAT occurred in all treatments with the combination of the fungus with an insecticide. At 105 DAT the numbers of nymphs had surged in all treatments, and no treatment provided effective control. The treatments with the highest earnings per hectare were A1 (3 × 10 12 M. a. conidia ha -1 + 65 g thiamethoxam) and M. anisopliae alone at the recommended dose of 3 × 10 12 M. a. conidia ha -1 . Our findings demonstrate the effectiveness of using either thiamethoxam or imidacloprid in combination with M. anisopliae to control M. fimbriolata nymphs on sugarcane, but greater net earnings per hectare occurred with the lowest rate of the thiamethoxam combination than with any of the imidacloprid combinations.Algunos insecticidas se puede utilizar con hongos entomopatógenos y por lo tanto, la aso- ciación de los controles químico y biológico puede ser una estrategia segura y eficaz para el control de insectos-plaga. El objetivo de este estudio fue evaluar los costos y eficacia de combinaciones de Metarhizium anisopliae (Metschnikoff) Sorokin (Hypocreales: Clavi- cipitaceae) con insecticidas thiamethoxam e imidacloprid para el control de la chicharrita (Mahanarva fimbriolata (Stål); Hemiptera: Cercopidae) en caña de azúcar . El experimento fue conducido en un delineamiento en bloques casualizados (DBC), con 10 tratamientos y 4 repeticiones. Los tratamientos que incluidos el control (sin tratamiento), thiamethoxam (250 g ha −1 ), imidacloprido (700 g ha −1 ), M. anisopliae (M.a.) (3×10 12 conidios ha −1 ), A1 (3×10 12 conidios ha −1 de M. a. + 65 g ha −1 de thiamethoxam), A2 (3×10 12 conidios ha −1 de M. a. + 125g ha −1 de thiamethoxam), A3 (3×10 12 conidios ha −1 de M. a. + 187.5 g ha −1 de thiamethoxam), A4 (3×10 12 conidios ha −1 de M.a + 175 g ha −1 de imidacloprido), A5 (3×10 12 conidios ha −1 de M. a. + 350 g ha −1 de imidacloprido) y A6 (3×10 12 conidios ha −1 de M. a. + 525g ha −1 de imidacloprido). Las reducciones en el número de ninfas M. fimbriolata por tratamiento en comparación con el control fueron similares a los 15 DAT (días pos tratamiento) en todos los tratamientos excepto A5 combinación (M. anisopliae y thiamethoxam). A los 30 DAT, el número de ninfas se redujeron significativamente en todos los tratamientos, excepto A3, y su eficacia varió de 14,28% para 92,85%. A los 45 DAT, los números de ninfas M. fimbriolata por tratamiento se redujeron significativamente en los siguientes tratamientos: imidacloprido solo en 700 g ha -1 , A1, A2, A3, A4 y A6; y las combinaciones de A1 y A2 causaron la más bajo infestaciones de ninfas M. fimbriolata y sus tasas de eficacia fueron de 77,41 y 87,09%, respectivamente. A los 75 DAT, los 2 mejores eficacias de control se produjeron en tratamientos A1 (3×10 12 conidios ha −1 de M. a. + 65 g ha −1 de thiamethoxam) y A5 (78.6%) (3×10 12 conidios ha −1 de M. a.+ 350 g ha −1 de imidacloprido). A los 90 DAT, el número de ninfas en el control había aumentado 2,8 veces más el número a 75 DAT. Muy buenas eficacias de control en 90 DAT, se produjo en todos los tratamientos con la combinación del hongo con un insecticida. A los 105 DAT, el número de ninfas habían aumentado en todos los tratamientos, y ningún tratamiento había proporcionado un control efectivo. Los tratamientos con los mayores rendimientos hectárea fueron A1 (3×10 12 conidios ha −1 de M. a.+ 65 g de thiamethoxam) y M. anisopliae solo a la dosis recomendada de 3×10 12 conidios ha −1 de M. a. Nuestros resultados demuestran la eficacia de thiamethoxam y imidacloprido en combinación con M. anisopliae para el control de ninfas M. fimbriolata en caña de azúcar, pero mayores beneficio neto por hectárea se produjeron con la tasa más baja de la combinación de thiamethoxam que con cualquiera de las combinaciones de imidacloprid

Behavior of Cellulose Biosynthetic Membrane as a Peritendinous Implant in Foals

Background: Tendon injuries are common in horses and are commonly associated with lameness and athletic career disruption. Adhesions formed between the tendons and the surrounding tissues compromise the sliding and movement of the structures, compromising their functionality. Therefore, the control of adhesion formation is critical to restore the structural integrity of the tendon, as well as its biomechanical function. The aim of this study was to evaluate the behavior of the biosynthetic cellulose membrane implanted in foals with surgically induced tendinitis of the superficial digital flexor.Materials, Methods & Results: Six healthy foals were used, which underwent tendinitis induction in the superficial digital flexor of the right and left forelimbs. The lesions was induced by local ischemia by crushing the tendon with hemostatic forceps. The biosynthetic cellulose membranewas implanted only in the right forelimb, involving the superficial digital flexor tendon in the region of the ischemia and the left forelimb was used as control. After surgery, both forelimb were immobilized with synthetic plaster cast for 15 days. Ultrasonography was performed in six foals immediately before (M0), at 15° (M1) at and 30° (M2) day, and three were evaluate at 45° (M3) and 60° (M4) day after surgery. Incisional biopsies were performed in three animals on the 30° day and in three animals on the 60° day after surgery. Histopathological examination involved the analysis of tissue disorganization, presence and type of inflammatory infiltrate and neovascularization, according to the score of 0 to 3. Ultrasonography allowed visualization of the membrane, which was characterized as a continuous hyperechoic line at the edges of the tendon at 15 days (M1). In addition, at 30 and 45 days after surgery, interruption of the hyperechoic line and reduction of echogenicity were observed, and no echogenic lines were observed at 60 days after surgery. During the biopsies, the fragments obtained from the treated limb were presented with easily detachable layers and separate layers of tissue during histological cutting and the slides preparations. There was no significant difference in relation to the histopathological scores between the treated and control member. The inflammatory infiltrate was predominantly of mononuclear cells and fibroblasts, with identification of giant cell in a foal at 30 days. Neovascularization was observed in all limbs, treated and controls at 30 days and in two treated limbs and three control at 60 days. It was possible to identify the synthetic cellulose membrane by histopathology in only two limbs treated at 30 days and in no limb at 60 days.Discussion: The degree of tendonitis induced in the present study was considered mild according to ultrasonographic analysis at 15 days after surgery. This fact limited the evaluation of the biosynthetic cellulose membrane in the prevention of adhesions, since they were not observed in both groups. However, the ability of the membrane to minimize adhesion formation can be suggest by the macroscopically observed individualization of the tissue layers during histological sections and slides preparation. Ultrasonographic analysis allowed the visualization of the membrane, as well as its positioning and the absorption process. Therefore, ultrasonography can be used in post-implantation monitoring of the membrane. The comparison of the histopathological scores demonstrates the biocompatibility of the biosynthetic cellulose membrane when implanted in foals submitted to surgically induced tendinitis, since there was no difference when compared to treated and control limbs. Therefore, it can be used safely in the treatment of tendon injuries in horses

Systematic analysis of jellyfish galaxy candidates in Fornax, Antlia, and Hydra from the S-PLUS survey: A self-supervised visual identification aid

© 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY), https://creativecommons.org/licenses/by/4.0/We study 51 jellyfish galaxy candidates in the Fornax, Antlia, and Hydra clusters. These candidates are identified using the JClass scheme based on the visual classification of wide-field, twelve-band optical images obtained from the Southern Photometric Local Universe Survey. A comprehensive astrophysical analysis of the jellyfish (JClass > 0), non-jellyfish (JClass = 0), and independently organized control samples is undertaken. We develop a semi-automated pipeline using self-supervised learning and similarity search to detect jellyfish galaxies. The proposed framework is designed to assist visual classifiers by providing more reliable JClasses for galaxies. We find that jellyfish candidates exhibit a lower Gini coefficient, higher entropy, and a lower 2D Sérsic index as the jellyfish features in these galaxies become more pronounced. Jellyfish candidates show elevated star formation rates (including contributions from the main body and tails) by 1.75 dex, suggesting a significant increase in the SFR caused by the ram-pressure stripping phenomenon. Galaxies in the Antlia and Fornax clusters preferentially fall towards the cluster's centre, whereas only a mild preference is observed for Hydra galaxies. Our self-supervised pipeline, applied in visually challenging cases, offers two main advantages: it reduces human visual biases and scales effectively for large data sets. This versatile framework promises substantial enhancements in morphology studies for future galaxy image surveys.Peer reviewe