28 research outputs found
Genotype distribution of cervical human papillomavirus DNA in women with cervical lesions in Bioko, Equatorial Guinea
<p>Abstract</p> <p>Background</p> <p>The HVP vaccine is a useful tool for preventing cervical cancer. The purpose of this study is to determine the most frequent HPV genotypes in Equatorial Guinea in order to develop future vaccination strategies to apply in this country.</p> <p>Methods</p> <p>A campaign against cervical cancer was carried out in the area on a total of 1,680 women. 26 of the women, following cytological screening, were treated surgically with a loop electrosurgical excision procedure (LEEP). Cases were studied histologically and were genotyped from paraffin blocks by applying a commercial kit that recognized 35 HPV types.</p> <p>Results</p> <p>Cytological diagnoses included 17 HSIL, 1 LSIL, 5 ASC-H and 3 AGUS. Histological diagnosis resulted in 3 cases of microinvasive squamous cell carcinoma stage IA of FIGO, 9 CIN-3, 8 CIN-2, 2 CIN-1, 3 flat condylomas and mild dysplasia of the endocervical epithelium. Fifteen of twenty-five cases genotyped were positive for HPV (60%). HPV 16 and 33 were identified in four cases each, HPV 58 in two other cases, and HPV 18, 31, 52, and 82 in one case, with one HPV 16 and 58 coinfection.</p> <p>Conclusion</p> <p>The frequency of HPV types in the African area varies in comparison to other regions, particularly in Europe and USA. Vaccination against the five most common HPV types (16, 33, 58, 18, and 31) should be considered in the geographic region of West Africa and specifically in Equatorial Guinea.</p
The review of the Brazilian Forest Act: harmful effects on amphibian conservation
In the last months there is a growing discussion in Brazil about a new Brazilian Forest Act (CĂłdigo Florestal). This new proposal, in substitution to the current Act, includes modifications which will affect negatively natural populations of amphibians. Besides the deleterious impacts upon amphibians, it will also harm the national and international human populations. Among the possible effects, in consequence of the associate amphibian population declines or complete loss, we cite the increase of agricultural production costs, loss of primary sources of compounds for the medical industry, generalized ecological disequilibrium, eutrofication of water bodies, increase in the costs of water (for humans) treatment, increase of agricultural plagues, and increase of insect borne diseases. All these effects are of high relevance, even more if we consider the population declines of amphibians, the most threatened terrestrial vertebrate group in the world. Therefore, we propose that if a new Forest Act must be prepared, that it should be based, besides in unlikely immediate economical benefits to farm owners, in scientific knowledge which benefits nature conservancy, economy, health, and human welfare.Nos Ășltimos meses estĂĄ em efervescente discussĂŁo uma proposta para que um novo cĂłdigo florestal (Projeto de Lei nÂș 1876/99) substitua o vigente instaurado por meio da Lei Federal nÂș 4771/65 e modificado recentemente por Medidas ProvisĂłrias. Este novo cĂłdigo proposto, todavia, propĂ”e alteraçÔes legais que devem afetar negativamente as populaçÔes naturais de anfĂbios do Brasil. O declĂnio de anfĂbios deve gerar impactos negativos tanto para a população (humana) nacional, como para a comunidade internacional. Entre os possĂveis efeitos dessa lei, em consequĂȘncia da perda de diversidade de anfĂbios, podemos citar o aumento nos custos de produção agrĂcola, perda de matĂ©ria prima para produção de remĂ©dios, descontrole ecolĂłgico, eutrofização de corpos d'ĂĄgua, encarecimento do custo do tratamento de ĂĄgua para abastecimento humano, aumento de pragas agrĂcolas e aumento de doenças transmitidas por insetos vetores. Isto tudo Ă© bastante preocupante ainda mais se levarmos em conta a prĂłpria perda da biodiversidade de anfĂbios, o grupo de vertebrados terrestres mais ameaçado do planeta. Sendo assim, ressaltamos a necessidade de que, caso um novo cĂłdigo florestal seja elaborado, este tenha embasamento tambĂ©m em questĂ”es tĂ©cnicas e cientĂficas que impreterivelmente afetam, nĂŁo sĂł a conservação da natureza, mas tambĂ©m a economia, saĂșde e bem estar das populaçÔes humanas.3538Fundação de Amparo Ă Pesquisa do Estado de SĂŁo Paulo (FAPESP)Conselho Nacional de Desenvolvimento CientĂfico e TecnolĂłgico (CNPq
Artistas sobre outras obras
A pĂłs modernidade encerra a interrogação crĂtica do homem sobre o homem: a linguagem ameaça o que Ă© significante, o que Ă© corpo. O sujeito Ă© falado, e assim constituĂdo depois da linguagem (Althusser, 1976). O jovem Arthur Rimbaud sintetiza-o, aos dezassete anos, numa carta ao seu professor de retĂłrica Georges Izambard, datada de 13 de maio 1871: «Câest faux de dire: je pense: on devrait dire on me pense. Pardon du jeu de mots. Je est un autre». (Rimbaud, 1999: 237) A identidade resiste Ă linguagem dos homens. A linguagem Ă© transmitida entre as geraçÔes e com ela transporta os sujeitos, ou, o que Ă© dizer o mesmo, a possĂvel interrogação: quem me fala? Ă esta tambĂ©m a perplexidade que motivou o tema desta revista EstĂșdio. Reuniram-se, nesta edição, 22 artigos, provenientes de diferentes autores da Argentina, Brasil, Portugal e Espanha, que se debruçam sobre artistas cuja identidade se mostra e merece ser interrogada: sĂŁo espaços âex-cĂȘntricos,â para se descobrir.info:eu-repo/semantics/publishedVersio
Variação espacial de cĂĄtions, Ăąnions e variĂĄveis fĂsico-quĂmicas no rio SolimĂ”es-Amazonas entre Manaus e JutaĂ, bacia amazĂŽnica
Cátions e ânions majoritários são espécies químicas de grande importância nos diversos compartimentos aquáticos, porém, pouco abordados de forma exclusiva na bacia amazônica. Neste sentido, o objetivo deste estudo foi avaliar a dinâmica espacial de Na+, Ca2+, K+, Mg2+, Cl- e SO4 2- em um trecho do rio Solimões-Amazonas, levando-se em consideração a alcalinidade, potencial hidrogeniônico (pH), condutividade elétrica (CE), sólidos totais em suspensão (STS) e carbono orgânico total (COT). As coletas foram realizadas em maio, julho e setembro de 2012 em sete pontos na calha principal do rio Solimões-Amazonas e na foz de alguns dos principais tributários: rios Jutaí, Juruá, Japurá e Purus. Os cátions e ânions foram analisados por cromatografia de íons, STS por gravimetria, pH por potenciometria, alcalinidade por titulação potenciométrica, CE por condutimetria e o COT por oxidação catalítica por combustão. As concentrações médias dos cátions seguiram esta ordem Ca2+>Na+>Mg2+>K+ e dos ânions SO4 2->Cl-. De montante à jusante a tendência foi diminuição nas concentrações de cátions e ânions, das variáveis pH, CE, STS e alcalinidade, além do aumento das concentrações de COT. O presente estudo evidenciou mudanças nas características químicas sofridas pelo rio Solimões em seu curso. O aporte dos tributários pode ser apontado como um dos fatores responsáveis por essas modificações
Experiencias en el aula: tercer encuentro de prĂĄcticas pedagĂłgicas innovadoras.
Experiencias de profesores en su quehacer en los distintos ambientes de aprendizaje presenciales y a distancia.Para el Centro de Excelencia Docente aeiou constituye un honor presentar la publicaciĂłn del Tercer Encuentro de PrĂĄcticas PedagĂłgicas Innovadoras en el que se destacan cuarenta trabajos de profesores de UNIMINUTO provenientes de diferentes sedes. Con este encuentro son ya tres que bajo la direcciĂłn de aeiou los profesores han compartido su quehacer en los distintos ambientes de aprendizaje presenciales y a distancia.
Cada año el Centro de Excelencia Docente invita a los profesores a participar en este evento, para el 2108 ademĂĄs de la inscripciĂłn voluntaria por parte de cada profesor, se invitĂł al estudiantado a que postularan a sus profesores que consideraban eran innovadores y creativos en el cumplimiento de su funciĂłn docente y se obtuvo una respuesta importante por parte de los estudiantes, que para algunos profesores resultĂł sorpresiva porque quizĂĄs no habĂan considerado que el trabajo que hacĂan en su ambiente de aprendizaje era diferente, fuera de lo comĂșn. Luego de una evaluaciĂłn de jurados nacionales e internacionales de las prĂĄcticas presentadas y de la realizaciĂłn del evento, que tuvo como novedad hacerlo de forma simultĂĄnea en cuatro sedes donde UNIMINUTO tiene presencia: Buga, IbaguĂ©, Pereira y BogotĂĄ, se comparte la presente publicaciĂłn para tener como referencia y evidencia el trabajo que los profesores hacen a diario
COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study
Background:
The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms.
Methods:
International, prospective observational study of 60â109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms.
Results:
âTypicalâ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (â€â18 years: 69, 48, 23; 85%), older adults (â„â70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each Pâ<â0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country.
Interpretation:
This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men
Evaluation of Raw Cheese as a Novel Source of Biofertilizer with a High Level of Biosecurity for Blueberry
Todayâs agriculture requires the search for new and modern tools in order to improve and
expand the use of its crops and to increase their sustainability. The use of plant growth-promoting PGP
bacteria (PGPB) is the target of much research and seems to be an ideal strategy as long as the strains
are properly selected for this purpose. Among the bacteria, lactic acid bacteria (LAB) are considered
a suitable alternative due to their high biosafety and mechanisms for promoting plant growth. In
view of this, in this work we decided to isolate LAB with PGP capacity from raw milk cheese of
the PDO âSerra da Estrelaâ. A total of 88 strains with a high diversity and remarkable capacity
to control food-borne and pathogenic microorganisms were isolated. In addition, most of them
showed excellent capacities for phosphate solubilization and the production of indole-3-acetic acid
and siderophores. Subsequently, we also studied their inoculation in blueberry seedlings. Among
the isolates, strains QSE20, QSE62 and QSE79 showed the most remarkable ability to efficiently
colonize the rhizosphere of this plant, improving root development and increasing the number of
secondary roots
Ciguatoxin detection in flesh and liver of relevant fish species from the Canary Islands
The Canary Islands are a ciguatoxin (CTX) hotspot with an established official monitoring for the detection of CTX in fish flesh from the authorised points of first sale. Fish caught by recreational fishermen are not officially tested and the consumption of toxic viscera or flesh could lead to ciguatera poisoning (CP). The objectives of this study were to determine the presence of CTX-like toxicity in relevant species from this archipelago, compare CTX levels in liver and flesh and examine possible factors involved in their toxicity. Sixty amberjack (Seriola spp.), 27 dusky grouper (Epinephelus marginatus), 11 black moray eels (Muraena helena) and 11 common two-banded seabream (Diplodus vulgaris) were analysed by cell-based assay (CBA) and Caribbean ciguatoxin-1 (C-CTX1) was detected by liquid chromatography mass spectrometry (LC-MS/MS) in all these species. Most of the liver displayed higher CTX levels than flesh and even individuals without detectable CTX in flesh exhibited hepatic toxicity. Black moray eels stand out for the large difference between CTX concentration in both tissues. None of the specimens with non-toxic liver showed toxicity in flesh. This is the first evidence of the presence of C-CTX1 in the common two-banded seabream and the first report of toxicity comparison between liver and muscle from relevant fish species captured in the Canary Islands.European Food Safety Authority | Ref. GP/EFSA/AFSCO/2015/03Ministerio de EducaciĂłn | Ref. FPU17/04022Ministerio de Ciencia e InnovaciĂłn | Ref. PID2019-108781RR-C21Ministerio de Ciencia e InnovaciĂłn | Ref. PID2019 108781RR C22Xunta de Galicia | Ref. ED481A-2018/20