1,947 research outputs found
Growth and mineral nutrition of banana seedlings cv. Grand Naine inoculated with arbuscular mycorrhizal fungi
This study aimed to verify the influence of FMAs on the levels of macro and micronutrients, and growth of micropropagated banana seedlings submitted to doses of P. The experimental design adopted was randomized blocks, in a 5 x 5 factorial arrangement, with factors inoculation with AMFs (G. clarum, G. margarita, G. albida and C. etunicatum and the control without AMF) and P doses (0, 50, 100, 200 and 400 mg kg-1). The association of different species of FMAs can favor the growth of banana seedlings, with greater nutrition. The application of P doses provided greater growth of the micropropagated banana seedlings, regardless of inoculation with AMF. Seedling production associated with G. margarita can favor the growth of plants submitted to low doses of P applied to the soil. The interaction of G. clarum with Musa spp. seedling production does not seem to favor plant growth. Mycorrhizal colonization together with phosphate fertilization contributed to the quality of banana seedlings. The inoculation with C. etunicatum favored the increase of K contents in the aerial part of the plants. The increase in P doses decreased the levels of N and S in all treatments. It caused a reduction in the leaf contents of Mn, B and Fe. The doses of P did not interfere in the leaf contents of Cu and Zn. The FMAs favored the levels of Cu, Zn, Mn and B in banana leaves; favored the increments of Cu, Fe, Zn and Mn contents in banana seedlings, varying with the doses of P.This study aimed to verify the influence of FMAs on the levels of macro and micronutrients, and growth of micropropagated banana seedlings submitted to doses of P. The experimental design adopted was randomized blocks, in a 5 x 5 factorial arrangement, with factors inoculation with AMFs (G. clarum, G. margarita, G. albida and C. etunicatum and the control without AMF) and P doses (0, 50, 100, 200 and 400 mg kg-1). The association of different species of FMAs can favor the growth of banana seedlings, with greater nutrition. The application of P doses provided greater growth of the micropropagated banana seedlings, regardless of inoculation with AMF. Seedling production associated with G. margarita can favor the growth of plants submitted to low doses of P applied to the soil. The interaction of G. clarum with Musa spp. seedling production does not seem to favor plant growth. Mycorrhizal colonization together with phosphate fertilization contributed to the quality of banana seedlings. The inoculation with C. etunicatum favored the increase of K contents in the aerial part of the plants. The increase in P doses decreased the levels of N and S in all treatments. It caused a reduction in the leaf contents of Mn, B and Fe. The doses of P did not interfere in the leaf contents of Cu and Zn. The FMAs favored the levels of Cu, Zn, Mn and B in banana leaves; favored the increments of Cu, Fe, Zn and Mn contents in banana seedlings, varying with the doses of P
Prevalence and characteristics of polycystic ovary syndrome in brazilian women : protocol for a nation-wide case-control study
Introduction Brazil is a large country, with a population of mixed ethnic background and broad variation in dietary and physical activity traits across its five main regions. Because data on Brazilian women with polycystic ovary syndrome (PCOS) are still scarce, a nation-wide collaborative study was designed to determine the prevalence of metabolic and reproductive abnormalities and the presence of anxiety and depression in Brazilian women with PCOS. In addition, the study aims at describing how these characteristics are distributed across PCOS phenotypes and at detecting associations with regional demographic and lifestyle aspects, genetic variants, and epigenetic markers. Methods and analysis The Brazilian PCOS study is being conducted in the outpatient clinics of eight university hospitals within the public healthcare network (Unified Health System) across the country. Additional centres will be included following completion of the research ethics approval process. The sample includes women with PCOS according to Rotterdam criteria at inclusion in the study and a control group of healthy women matched by age, socioeconomic status and geographical region. Data will be collected in each centre and incorporated into a unified cloud database. Clinical, demographic, socioeconomic, psychological, metabolic, epigenetic and genotypic variables will be evaluated. The data resulting from this study will be useful to guide specific public strategies for primary and secondary prevention of metabolic and reproductive comorbidities in the PCOS population of Brazil
Frequency of TERT promoter mutations in human cancers
Reactivation of telomerase has been implicated in human tumorigenesis, but the underlying mechanisms remain poorly understood. Here we report the presence of recurrent somatic mutations in the TERT promoter in cancers of the central nervous system (43%), bladder (59%), thyroid (follicular cell-derived, 10%) and skin (melanoma, 29%). In thyroid cancers, the presence of TERT promoter mutations (when occurring together with BRAF mutations) is significantly associated with higher TERT mRNA expression, and in glioblastoma we find a trend for increased telomerase expression in cases harbouring TERT promoter mutations. Both in thyroid cancers and glioblastoma, TERT promoter mutations are significantly associated with older age of the patients. Our results show that TERT promoter mutations are relatively frequent in specific types of human cancers, where they lead to enhanced expression of telomerase.We thank to Mrs Mafalda Rocha for the excellent technical support in the sequencing work. This work was partially supported by the Portuguese Science and Technology Foundation (FCT) through BPD (SFRH/BPD/85249/2012 to H. P.), PhD (SFRH/BD/81940/2011 to J.V. and SFRH/BD/79135/2011 to A. A.) and BI grants, and the grant through the Program Ciencia 2008 (J.L.) and the project (PIC/IC/83037/2007). Further funding was obtained from the project 'Microenvironment, metabolism and cancer' partially supported by Programa Operacional Regional do Norte (ON.2-O Novo Norte), under the Quadro de Referencia Estrategico Nacional (QREN), and through the Fundo Europeu de Desenvolvimento Regional (FEDER). IPATIMUP is an associate laboratory of the Portuguese Ministry of Science, Technology and Higher Education and is partially supported by the FCT
Thrombus aspiration in patients with ST-elevation myocardial infarction: results of a national registry of interventional cardiology
BACKGROUND:
We aimed to evaluate the impact of thrombus aspiration (TA) during primary percutaneous coronary intervention (P-PCI) in 'real-world' settings.
METHODS:
We performed a retrospective study, using data from the National Registry of Interventional Cardiology (RNCI 2006-2012, Portugal) with ST-elevation myocardial infarction (STEMI) patients treated with P-PCI. The primary outcome, in-hospital mortality, was analysed through adjusted odds ratio (aOR) and 95% confidence intervals (95%CI).
RESULTS:
We assessed data for 9458 STEMI patients that undergone P-PCI (35% treated with TA). The risk of in-hospital mortality with TA (aOR 0.93, 95%CI:0.54-1.60) was not significantly decreased. After matching patients through the propensity score, TA reduced significantly the risk of in-hospital mortality (OR 0.58, 95%CI:0.35-0.98; 3500 patients).
CONCLUSIONS:
The whole cohort data does not support the routine use of TA in P-PCI, but the results of the propensity-score matched cohort suggests that the use of selective TA may improve the short-term risks of STEMI..info:eu-repo/semantics/publishedVersio
Distribution of alien tetrapods in the Iberian Peninsula
We present a dataset that assembles occurrence records of alien tetrapods (amphibians, reptiles, birds and mammals) in the Iberian Peninsula, a coherent biogeographically unit where introductions of alien species have occurred for millennia. These data have important potential applications for ecological research and management, including the assessment of invasion risks, formulation of preventive and management plans, and research at the biological community level on alien species. This dataset summarizes inventories and data sources on the taxonomy and distribution of alien tetrapods in the Iberia Peninsula, comprising known locations from published literature, expert knowledge and citizen science platforms. An expert-based assessment process allowed the identification of unreliable records (misclassification or natural dispersion from native range), and the classification of species according to their status of reproduction in the wild. Distributional data was harmonized into a common area unit, the 10 × 10 km Universal Transverse Mercator (UTM) system (n = 6,152 cells). The year of observation and/or year of publication were also assigned to the records. In total, we assembled 35,940 unique distribution records (UTM × species × Year) for 253 species (6 amphibians, 16 reptiles, 218 birds and 13 mammals), spanning between 1912 and 2020. The species with highest number of distribution records were the Mediterranean painted frog Discoglossus pictus (n = 59 UTM), the pond slider Trachemys scripta (n = 471), the common waxbill Estrilda astrild (n = 1,275) and the house mouse Mus musculus (n = 4,043), for amphibians, reptiles, birds and mammals, respectively. Most alien species recorded are native to Africa (33%), followed by South America (21%), Asia (19%), North America (12%) and Oceania (10%). Thirty-six species are classified by IUCN as threatened in their native range, namely 2 Critically Endangered (CR), 6 Endangered (EN), 8 Vulnerable (VU), and 20 species Near Threatened (NT). Species maps are provided in DataSet1, as well R code and GIS layers to update them as new records are obtained.info:eu-repo/semantics/publishedVersio
revista de Ciências da Arte
O segundo volume do dossier temático Ars Ludens, procura explorar relações entre a dimensão lúdica com a tecnológica, com especial atenção aos problemas do videojogo, sobretudo nas suas tensões enquanto questão lúdica e artística. Várias questões se envolvem nessa tensão, destacando-se se o videojogo pode ser arte? E como? Ou até que ponto? Ou ainda, como se entende e recebe teórica e criticamente essa possibilidade? Temos depois as suas problemáticas curatoriais. Como se pode expor o videojogo e o que implica e significa enquanto exercício curatorial? O que é contemplar um videojogo como obra de arte ou como modo lúdico? Ou se só pode ser acção do próprio utilizador/jogador? Outra dimensão está nas alterações tecnológicas no próprio seio da ludicidade e do jogo: por exemplo, que alterações trouxeram os videojogos no campo do uso e prazer lúdico? E quais as suas implicações na nossa experiência do mundo?info:eu-repo/semantics/publishedVersio
Constituição Anotada da República Democrática de Timor-Leste
A independência de Timor-Leste, proclamada pela Frente Revolucionária do
Timor-Leste Independente (FRETILIN) em 28 de novembro de 1975, vê-se
internacionalmente reconhecida a 20 de maio de 2002, uma vez concretizada
a libertação do povo timorense da colonização e da ocupação ilegal da Pátria
Maubere por potências estrangeiras.
A elaboração e adoção da Constituição da República Democrática de Timor-
-Leste culminam a secular resistência do povo timorense, intensificada com a
invasão de 7 de dezembro de 1975.
A luta travada contra o inimigo, inicialmente sob a liderança da FRETILIN,
deu lugar a formas mais abrangentes de participação política, com a criação
sucessiva do Conselho Nacional de Resistência Maubere (CNRM), em 1987, e
do Conselho Nacional de Resistência Timorense (CNRT), em 1998.
A Resistência desdobrou-se em três frentes.
A frente armada foi protagonizada pelas gloriosas Forças Armadas de Libertação
Nacional de Timor-Leste (FALINTIL), cuja gesta histórica cabe exaltar.
A ação da frente clandestina, astutamente desencadeada em território hostil,
envolveu o sacrifício de milhares de vidas de mulheres e homens, em especial
jovens, que lutaram com abnegação em prol da liberdade e independência.
A frente diplomática, conjugadamente desenvolvida em todo o Mundo, permitiu
abrir caminho para a libertação definitiva.
Na sua vertente cultural e humana, a Igreja Católica em Timor-Leste sempre
soube assumir com dignidade o sofrimento de todo o Povo, colocando-se ao
seu lado na defesa dos seus mais elementares direitos. Esta Constituição representa,
finalmente, uma sentida homenagem a todos os mártires da Pátria.
Assim, os Deputados da Assembleia Constituinte, legítimos representantes
do Povo eleitos a 30 de agosto de 2001; Alicerçados ainda no ato referendário de 30 de agosto de 1999, que, concretizado
sob os auspícios da Organização das Nações Unidas, confirmou a
vontade autodeterminada de independência;
Plenamente conscientes da necessidade de se erigir uma cultura democrática
e institucional própria de um Estado de Direito onde o respeito pela Constituição,
pelas leis e pelas instituições democraticamente eleitas sejam a sua
base inquestionável;
Interpretando o profundo sentimento, as aspirações e a fé em Deus do povo
de Timor-Leste;
Reafirmam solenemente a sua determinação em combater todas as formas
de tirania, opressão, dominação e segregação social, cultural ou religiosa,
defender a independência nacional, respeitar e garantir os direitos humanos
e os direitos fundamentais do cidadão, assegurar o princípio da separação de
poderes na organização do Estado e estabelecer as regras essenciais da democracia
pluralista, tendo em vista a construção de um país justo e próspero e o
desenvolvimento de uma sociedade solidária e fraterna.
A Assembleia Constituinte, reunida na sessão plenária de 22 de março de
2002, aprova e decreta a seguinte Constituição da República Democrática de
Timor-Leste
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in
operation since July 2014. This paper describes the second data release from
this phase, and the fourteenth from SDSS overall (making this, Data Release
Fourteen or DR14). This release makes public data taken by SDSS-IV in its first
two years of operation (July 2014-2016). Like all previous SDSS releases, DR14
is cumulative, including the most recent reductions and calibrations of all
data taken by SDSS since the first phase began operations in 2000. New in DR14
is the first public release of data from the extended Baryon Oscillation
Spectroscopic Survey (eBOSS); the first data from the second phase of the
Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2),
including stellar parameter estimates from an innovative data driven machine
learning algorithm known as "The Cannon"; and almost twice as many data cubes
from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous
release (N = 2812 in total). This paper describes the location and format of
the publicly available data from SDSS-IV surveys. We provide references to the
important technical papers describing how these data have been taken (both
targeting and observation details) and processed for scientific use. The SDSS
website (www.sdss.org) has been updated for this release, and provides links to
data downloads, as well as tutorials and examples of data use. SDSS-IV is
planning to continue to collect astronomical data until 2020, and will be
followed by SDSS-V.Comment: SDSS-IV collaboration alphabetical author data release paper. DR14
happened on 31st July 2017. 19 pages, 5 figures. Accepted by ApJS on 28th Nov
2017 (this is the "post-print" and "post-proofs" version; minor corrections
only from v1, and most of errors found in proofs corrected
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