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Resultados  1-12 de 9.415
1.

Análisis histórico epidemiológico de la pandemia de gripa de 1918-1919 en Boyacá, un siglo después/ Historical and Epidemiological Analysis of the Pandemic Flu of 1918-1919 in Boyaca a Century Later/ Análise histórica epidemiológica da pandemia de gripe de 1918-1919 em Boyacá, um século depois

Autor(es): Martínez-Martín, Abel Fernando; Meléndez-Álvarez, Bernardo Francisco Andrés; Manrique-Corredor, Edwar Javier; Robayo-Avendaño, Omar Fernando
Fonte: Rev. cienc. salud (Bogotá);17(2): 334-351, may.-ago. 2019. tab, graf
LILACS - Literatura Latino-Americana e do Caribe em Ciências da Saúde ID: 1013878  LILACS Express
Resumo: Resumen Introducción : la gripa que ocurrió entre 1918-1919 causó la mayor mortalidad en la historia de las pandemias, se estima que 50 millones de personas fallecieron. Se realizó un estudio histórico-epidemiológico a partir de fuentes documentales contrastadas con un análisis estadístico de 142963 registros de defunción consignados en los libros parroquiales de 94 municipios de Boyacá y los censos de los años 1912, 1918 y 1928. Desarrollo : a partir de las fuentes primarias o (mais)
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2.

Molecular epidemiology of the hemagglutinin gene of prevalent influenza virus A/H1N1/pdm09 among patient in Iran.

Autor(es): Mohebbi, Atefeh; Fotouhi, Fatemeh; Jamali, Abbas; Yaghobi, Ramin; Farahmand, Behrokh; Mohebbi, Reza
Fonte: Virus Res;259: 38-45, 2019 01 02.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30336188
Resumo: In 2015, the influenza virus A/H1N1/pdm09 strain outbreak became prevalent throughout the different provinces of Iran. There are relatively limited complete genetic sequences available for this virus from Asian countries. Diagnosis and virological surveillance of influenza is essential for detecting novel genetic variants causing epidemic potential. This study describes the genetic properties of HA genome of influenza A/H1N1 pdm09 viruses circulating in Iran during the 2015/2016 season. In (mais)
Assunto(s): Glicoproteínas de Hemaglutininação de Vírus da Influenza/genética Vírus da Influenza A Subtipo H1N1/genética Influenza Humana/epidemiologia Influenza Humana/virologia Substituição de Aminoácidos Animais Linhagem Celular Variação Genética Genótipo Glicoproteínas de Hemaglutininação de Vírus da Influenza/química Humanos Vírus da Influenza A Subtipo H1N1/classificação Irã (Geográfico)/epidemiologia Modelos Moleculares Epidemiologia Molecular Tipagem de Sequências Multilocus Filogenia Prevalência Conformação Proteica Estações do Ano
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3.

The epidemiology and severity of respiratory viral infections in a tropical country: Ecuador, 2009-2016.

Autor(es): Caini, Saverio; de Mora, Doménica; Olmedo, Maritza; Portugal, Denisses; Becerra, María A; Mejía, Marcela; Pacurucu, María C; Ojeda, Jenny; Bonaccorsi, Guglielmo; Lorini, Chiara; Paget, John; Bruno, Alfredo
Fonte: J Infect Public Health;2018 Dec 17.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30573330
Resumo: BACKGROUND: Respiratory viral infections (RVI) are a leading cause of mortality worldwide. We compared the epidemiology and severity of RVI in Ecuador during 2009-2016. METHODS: Respiratory specimens collected within the national surveillance system were tested for influenza viruses, respiratory syncytial virus (RSV), adenovirus, parainfluenza virus, and human metapneumovirus. Overall and virus-specific positive detection rate (PDR) were calculated and compared the timing of epidemics cause (mais)
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4.

Influenza Activity - United States, September 30-December 1, 2018.

Autor(es): Budd, Alicia P; Abd Elal, Anwar Isa; Alabi, Noreen; Barnes, John; Blanton, Lenee; Brammer, Lynnette; Burns, Erin; Cummings, Charisse N; Dugan, Vivien G; Garg, Shikha; Garten, Rebecca; Grohskopf, Lisa A; Gubareva, Larisa; Kniss, Krista; Kramer, Natalie; O'Halloran, Alissa; Sessions, Wendy; Taylor, Calli; Wentworth, David E; Xu, Xiyan; Fry, Alicia M; Katz, Jacqueline; Jernigan, Daniel
Fonte: MMWR Morb Mortal Wkly Rep;67(49): 1369-1371, 2018 Dec 14.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30543604
Resumo: Influenza activity in the United States was low during October 2018, and, although it increased slowly during November, activity remains low across most of the country.* During the week ending December 1, 2018, the percentage of outpatient visits for influenza-like illness (ILI) was equal to the national baseline (Figure) and was at or slightly above the region-specific baseline in four of the 10 U.S. Department of Health and Human Services regions (Regions 4 and 7-9). The majority of juris (mais)
Assunto(s): Influenza Humana/epidemiologia Vigilância da População Assistência Ambulatorial Humanos Vírus da Influenza A Subtipo H1N1/isolamento & purificação Vírus da Influenza A Subtipo H3N2/isolamento & purificação Vírus da Influenza A/isolamento & purificação Vírus da Influenza B/isolamento & purificação Influenza Humana/prevenção & controle Influenza Humana/virologia Estações do Ano Estados Unidos/epidemiologia
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6.

Impact of Insecticide Seed Treatments and Foliar Insecticides on Aphid Infestations in Wheat, Incidence of Barley Yellow Dwarf, and Yield in West Tennessee.

Autor(es): Perkins, Clay M; Steckel, Sandra J; Stewart, Scott D
Fonte: J Econ Entomol;2018 Oct 01.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30277512
Resumo: Several species of aphids (Hemiptera: Aphididae) infesting wheat may reduce yield by the transmission of barley yellow dwarf (BYD). Neonicotinoid seed treatments and foliar application of insecticides are two common methods to control aphid infestations and reduce BYD. An analysis was carried out across 33 insecticide efficacy tests performed in west Tennessee during the last 11 yr to determine how insecticide seed treatments and/or a late-winter foliar insecticide application affected aphi (mais)
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7.

Infertility and Teratogenicity after Paternal Exposure to Systemic Dermatologic Medications: A Systematic Review.

Autor(es): Zakhem, George A; Motosko, Catherine C; Mu, Euphemia W; Ho, Roger S
Fonte: J Am Acad Dermatol;2018 Oct 01.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30287313
Resumo: BACKGROUND: This systematic review assesses effects of paternal exposure of dermatologic medications, using the former US Food and Drug Administration (FDA) pregnancy categories as a benchmark. OBJECTIVE: To assess whether systemic dermatologic medications can cause infertility and teratogenicity when taken by men. METHODS: Category D and X dermatologic medications were identified; a systematic review of the literature and reviews of the FDA Adverse Events Reporting System (FAERS) and presc (mais)
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8.

Tumor Microenvironment-Responsive Ultrasmall Nanodrug Generators with Enhanced Tumor Delivery and Penetration.

Autor(es): Zhang, Pengfei; Wang, Junqing; Chen, Hu; Zhao, Lei; Chen, Binbin; Chu, Chengchao; Liu, Heng; Qin, Zainen; Liu, Jingyi; Tan, Yuanzhi; Chen, Xiaoyuan; Liu, Gang
Fonte: J Am Chem Soc;140(44): 14980-14989, 2018 Nov 07.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30359020
Resumo: Tumor microenvironment-induced ultrasmall nanodrug generation (TMIUSNG) is an unprecedented approach to overcome the drug penetration barriers across complex biological systems, poor circulation stability and limited drug loading efficiency (DLE). Herein, a novel strategy was designed to synthesize metal-organic nanodrug complexes (MONCs) through supramolecular coassembly of photosensitizer sinoporphyrin sodium, chemotherapeutic drug doxorubicin and ferric ions. Compared with the free photo (mais)
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9.

Synthesis of Furan-Annelated BINOL Derivatives: Acid-Catalyzed Cyclization Induces Partial Racemization.

Autor(es): Octa-Smolin, Frescilia; van der Vight, Felix; Yadav, Rohan; Bhangu, Jasmine; Soloviova, Kateryna; Wölper, Christoph; Daniliuc, Constantin G; Strassert, Cristian A; Somnitz, Holger; Jansen, Georg; Niemeyer, Jochen
Fonte: J Org Chem;2018 Nov 08.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30359025
Resumo: In this account, we describe the synthesis of a series of BINOL-based bis- and trisphosphoric acids 11d/e/f, which commonly feature an unusual phosphoric acid monoester motif. This motif is generated by an acid-catalyzed 5- endo- dig cyclization of the 3-alkynyl-substituted BINOL precursors to give the corresponding Furan-annelated derivatives, followed by phosphorylation of the remaining phenolic alcohols. In the cyclization reaction, we observed an unexpected partial racemization in the b (mais)
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10.

The temporal dynamics of perceptual and conceptual fluency on recognition memory.

Autor(es): Wang, Wei; Li, Bingbing; Gao, Chuanji; Guo, Chunyan
Fonte: Brain Cogn;127: 1-12, 2018 Nov.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30176534
Resumo: Recognition memory can be driven by both perceptual and conceptual fluency, but when and to what extent they contribute to recognition memory remains an open question. The present study used event-related potentials (ERPs) to investigate the neural correlates of perceptual and conceptual fluency, when they gave rise to recognition. We manipulated the perceptual and conceptual fluency of retrieval cues in the recognition test independently to obtain the effects of different types of fluency. (mais)
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11.

Coherence Resonance and Stochastic Resonance in an Excitable Semiconductor Superlattice.

Autor(es): Mompo, Emanuel; Ruiz-Garcia, Miguel; Carretero, Manuel; Grahn, Holger T; Zhang, Yaohui; Bonilla, Luis L
Fonte: Phys Rev Lett;121(8): 086805, 2018 Aug 24.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30192625
Resumo: Collective electron transport causes a weakly coupled semiconductor superlattice under dc voltage bias to be an excitable system with 2N+2 degrees of freedom: electron densities and fields at N superlattice periods plus the total current and the field at the injector. External noise of sufficient amplitude induces regular current self-oscillations (coherence resonance) in states that are stationary in the absence of noise. Numerical simulations show that these oscillations are due to the re (mais)
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12.

Bortezomib inhibited the progression of diffuse large B-cell lymphoma via targeting miR-198.

Autor(es): Wang, Ruihuan; Shen, Jie; Wang, Qing; Zhang, Minjuan
Fonte: Biomed Pharmacother;108: 43-49, 2018 Dec.
MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30216798
Resumo: Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of non-Hodgkin lymphoma, which is an aggressive malignancy with high variance of clinical features and response to the treatment. The proteasome inhibitor bortezomib (BTZ) has been demonstrated to suppress the progression of DLBCL, however, the underlying molecular mechanisms by which BTZ regulates the growth of DLBCL cells remain largely unknown. Increasing evidence has suggested that microRNAs (miRNAs) are novel targets of a (mais)
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Resultados  1-12 de 9.415
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