913 research outputs found

    Pengaruh Kondisi Tanah Terhadap Kerusakan Jalan Menggunakan Metode (PCI) Tirto Rahhayu Landung Sari Desa Mulyoagung Kecamatan Dau Kabupaten Malang

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    Tanah adalah suatu himpunan mineral, bahan organik, dan endapan-endapan relatif lepas,salah satunya pada konstruksi jalan raya.tanah sebagai pondasi sangat berpengaruh terhadap kualitas pelayanan dan kondisi konstruksi jalan. Kondisi ini terjadi di Jalan Tirto Rahayu Landung Sari-Desa Mulyoagung Kecamatan Dau Kabupaten Malang yang merupakan obyek penelitian.Dari hasil penelitian yang dilakukan sepanjang 1000 m yang di bagi menjadi 200 m persegmen di Jalan Tirto Rahayu Landung Sari Desa Mulyoagung Kecamatan Dau Kabupaten Malang,kondisi jalan mengalami kerusakan.Hal ini dilihat dari kerusakan permukaan aspal yang terkelupas,retak, dan berlubang.Nilai rata-rata Pavement Condition Index (PCI) jalan Tirto Rahayu Landung Sari Desa Mulyoagung Kecanatan Dau Kabupaten Malang yaitu 44 Cukup (Fair),jenis tanah setelah di lakukan penelitian dan lolos ayakan 200 = 35% tanah berbutir sebagian besar lanau dan lempung.hasil analisa saringan lolos ayakan 200,20,dan 10 yaitu batu pecah,kerikil,dan pasir.hasil analisa kadar air rata-rata yaitu 54,05%,hasil rata-rata nilai plastisitas yaitu 1,1 % < 10 % sehingga rata-rata tingkat plastisitas segmen rendah dengan jenis tanah Lanau.hasil nilai rata-rata CBR dan DDT menggunakan alat DCP yaitu sebesar 2,43 % < 5 % dengan nilai DDT sebesar 3,36. jalan ini perlu dimasukan dalam program pemiliharaan secara berkala dan Pemilihan perkerasan dalam menggulangi kerusakan pada jalan ini yaitu menggunakan perkerasan lentu

    Tratamento cirúrgico da Incontinência Urinária de Esforço com o minisling OPHIRA – um estudo piloto

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    Desenho do estudo: Transversal. Objetivos: Avaliar a eficácia do minisling Ophyra ™ em mulheres com incontinência urinária de esforço (IUE). Métodos: Estudo prospectivo, observacional, que abrangeu 13 pacientes que realizaram cirurgia de minisling entre 2010 e 2011. As seguintes variáveis foram analisadas: idade, taxa subjetiva de sucesso (cura e /ou melhora), complicações cirúrgicas imediatas e tardias. Os parâmetros de qualidade de vida (King’s Health Questionnaire - KHQ) foram analisados antes e depois de um ano de cirurgia. Resultados: Treze (3/13) por cento das mulheres recidivaram a IUE, com 87,5% de sucesso subjetivo depois de um ano de seguimento. Depois de 12 meses de seguimento, as mulheres foram consideradas subjetivamente curadas em todos os domínios dos questionários de qualidade de vida KHQ, exceto por relações pessoais e domínio de sono/energia. Quatro pacientes tiveram sintomas irritativos depois da cirurgia e duas pacientes com retenção urinária crônica. Conclusão: O minisling Ophira foi efetivo para melhorar a IUE e promover melhor qualidade de vida em mulheres com IUE. Maior amostragem é necessária para posteriormente comparar essas pacientes com mulheres que foram submetidas a técnicas retropúbicas clássicas.Design of the study: Cross-sectional. Objectives: To evaluate the efficacy of minisling (Ophyra ™) in women with stress urinary incontinence (SUI). Methods: A prospective, observational study comprised 13 patients who underwent minisling surgery from 2010 to 2011. It was analyzed the following variables: age, subjective success rate (cure and/or improvement), immediate and late surgical complications. Quality of life (QoL) parameters (King’s Health Questionnaire - KHQ) were analyzed before and after one year of surgery. Results: Thirteen per cent (3/13) of women had their SUI relapsed, with 87.5% of subjective success after one year of follow-up. After 12 months of follow-up, women who were considered subjectively cured had improvement in all domains of KHQ QoL scores, except for personal relationships and sleep/energy domains. Four patients had irritative symptoms after surgery and two patients evolved with chronic urinary retention. Conclusion: Minisling Ophira was effective to improve SUI and to promote better QoL on women with SUI. A larger sampling is needed to further compare these patients with women who underwent to classic retropubic techniques

    Bayesian molecular clock dating of species divergences in the genomics era

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    It has been five decades since the proposal of the molecular clock hypothesis, which states that the rate of evolution at the molecular level is constant through time and among species. This hypothesis has become a powerful tool in evolutionary biology, making it possible to use molecular sequences to estimate the geological ages of species divergence events. With recent advances in Bayesian clock dating methodology and the explosive accumulation of genetic sequence data, molecular clock dating has found widespread applications, from tracking virus pandemics, to studying the macroevolutionary process of speciation and extinction, to estimating a timescale for Life on Earth

    Deep sea ecosystem exploration and ‘health check’: sampling strategy and methods applied during the iAtlantic_BR10_Petrobras cruise in the Santos Basin, Southwest Atlantic

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    The iAtlantic Project has established an international collaborative strategy to improve mapping andcharacterization of deep and open ocean ecosystems in understudied regions of the Atlantic and evaluatetheir health. In December 2022, the first iAtlantic expedition in the South Atlantic set off to map and exploreseafloor ecosystems in the Santos Basin slope (200-1,000 m depths) in collaboration with the Petrobras ‘SantosBasin - Regional Characterization Project.’ The 17-day ‘iAtlantic_BR10-Petrobras’ cruise was conducted onboard the research vessel NPqHOc Vital de Oliveira (Brazilian Navy) and performed (a) water column structurecharacterization, (b) seafloor morphology mapping, (c) description of benthic habitats and communities byseafloor imagery and biological/ geological sampling, and (d) ex-situ experiments to assess the functioning ofsedimentary ecosystems and their responses to climate-related environmental changes. This study describesthe rationale behind the iAtlantic_BR10-Petrobras cruise science plan, reports its sampling strategy andmethods, and summarizes its collected data and preliminary results

    The germline mutational landscape of BRCA1 and BRCA2 in Brazil

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    The detection of germline mutations in BRCA1 and BRCA2 is essential to the formulation of clinical management strategies, and in Brazil, there is limited access to these services, mainly due to the costs/availability of genetic testing. Aiming at the identification of recurrent mutations that could be included in a low-cost mutation panel, used as a first screening approach, we compiled the testing reports of 649 probands with pathogenic/likely pathogenic variants referred to 28 public and private health care centers distributed across 11 Brazilian States. Overall, 126 and 103 distinct mutations were identified in BRCA1 and BRCA2, respectively. Twenty-six novel variants were reported from both genes, and BRCA2 showed higher mutational heterogeneity. Some recurrent mutations were reported exclusively in certain geographic regions, suggesting a founder effect. Our findings confirm that there is significant molecular heterogeneity in these genes among Brazilian carriers, while also suggesting that this heterogeneity precludes the use of screening protocols that include recurrent mutation testing only. This is the first study to show that profiles of recurrent mutations may be unique to different Brazilian regions. These data should be explored in larger regional cohorts to determine if screening with a panel of recurrent mutations would be effective.This work was supported in part by grants from Barretos Cancer Hospital (FINEP - CT-INFRA, 02/2010), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, 2013/24633-2 and 2103/23277-8), Fundação de Apoio à Pesquisa do Rio Grande do Norte (FAPERN), Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS), Ministério da Saúde, the Breast Cancer Research Foundation (Avon grant #02-2013-044) and National Institute of Health/National Cancer Institute (grant #RC4 CA153828-01) for the Clinical Cancer Genomics Community Research Network. Support in part was provided by grants from Fundo de Incentivo a Pesquisa e Eventos (FIPE) from Hospital de Clínicas de Porto Alegre, by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, BioComputacional 3381/2013, Rede de Pesquisa em Genômica Populacional Humana), Secretaria da Saúde do Estado da Bahia (SESAB), Laboratório de Imunologia e Biologia Molecular (UFBA), INCT pra Controle do Câncer and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). RMR and PAP are recipients of CNPq Productivity Grants, and Bárbara Alemar received a grant from the same agencyinfo:eu-repo/semantics/publishedVersio

    Genomic, Pathway Network, and Immunologic Features Distinguishing Squamous Carcinomas

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    This integrated, multiplatform PanCancer Atlas study co-mapped and identified distinguishing molecular features of squamous cell carcinomas (SCCs) from five sites associated with smokin

    Pan-Cancer Analysis of lncRNA Regulation Supports Their Targeting of Cancer Genes in Each Tumor Context

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    Long noncoding RNAs (lncRNAs) are commonly dys-regulated in tumors, but only a handful are known toplay pathophysiological roles in cancer. We inferredlncRNAs that dysregulate cancer pathways, onco-genes, and tumor suppressors (cancer genes) bymodeling their effects on the activity of transcriptionfactors, RNA-binding proteins, and microRNAs in5,185 TCGA tumors and 1,019 ENCODE assays.Our predictions included hundreds of candidateonco- and tumor-suppressor lncRNAs (cancerlncRNAs) whose somatic alterations account for thedysregulation of dozens of cancer genes and path-ways in each of 14 tumor contexts. To demonstrateproof of concept, we showed that perturbations tar-geting OIP5-AS1 (an inferred tumor suppressor) andTUG1 and WT1-AS (inferred onco-lncRNAs) dysre-gulated cancer genes and altered proliferation ofbreast and gynecologic cancer cells. Our analysis in-dicates that, although most lncRNAs are dysregu-lated in a tumor-specific manner, some, includingOIP5-AS1, TUG1, NEAT1, MEG3, and TSIX, synergis-tically dysregulate cancer pathways in multiple tumorcontexts

    Pan-cancer Alterations of the MYC Oncogene and Its Proximal Network across the Cancer Genome Atlas

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    Although theMYConcogene has been implicated incancer, a systematic assessment of alterations ofMYC, related transcription factors, and co-regulatoryproteins, forming the proximal MYC network (PMN),across human cancers is lacking. Using computa-tional approaches, we define genomic and proteo-mic features associated with MYC and the PMNacross the 33 cancers of The Cancer Genome Atlas.Pan-cancer, 28% of all samples had at least one ofthe MYC paralogs amplified. In contrast, the MYCantagonists MGA and MNT were the most frequentlymutated or deleted members, proposing a roleas tumor suppressors.MYCalterations were mutu-ally exclusive withPIK3CA,PTEN,APC,orBRAFalterations, suggesting that MYC is a distinct onco-genic driver. Expression analysis revealed MYC-associated pathways in tumor subtypes, such asimmune response and growth factor signaling; chro-matin, translation, and DNA replication/repair wereconserved pan-cancer. This analysis reveals insightsinto MYC biology and is a reference for biomarkersand therapeutics for cancers with alterations ofMYC or the PMN

    Spatial Organization and Molecular Correlation of Tumor-Infiltrating Lymphocytes Using Deep Learning on Pathology Images

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    Beyond sample curation and basic pathologic characterization, the digitized H&E-stained images of TCGA samples remain underutilized. To highlight this resource, we present mappings of tumorinfiltrating lymphocytes (TILs) based on H&E images from 13 TCGA tumor types. These TIL maps are derived through computational staining using a convolutional neural network trained to classify patches of images. Affinity propagation revealed local spatial structure in TIL patterns and correlation with overall survival. TIL map structural patterns were grouped using standard histopathological parameters. These patterns are enriched in particular T cell subpopulations derived from molecular measures. TIL densities and spatial structure were differentially enriched among tumor types, immune subtypes, and tumor molecular subtypes, implying that spatial infiltrate state could reflect particular tumor cell aberration states. Obtaining spatial lymphocytic patterns linked to the rich genomic characterization of TCGA samples demonstrates one use for the TCGA image archives with insights into the tumor-immune microenvironment

    Guidelines for the management of neuroendocrine tumours by the Brazilian gastrointestinal tumour group

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    Neuroendocrine tumours are a heterogeneous group of diseases with a significant variety of diagnostic tests and treatment modalities. Guidelines were developed by North American and European groups to recommend their best management. However, local particularities and relativisms found worldwide led us to create Brazilian guidelines. Our consensus considered the best feasible strategies in an environment involving more limited resources. We believe that our recommendations may be extended to other countries with similar economic standards.Univ Sao Paulo, Inst Canc Estado Sao Paulo, BR-01246000 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Radiol & Oncol, BR-01246903 Sao Paulo, BrazilHosp Sirio Libanes, BR-01308050 Sao Paulo, BrazilHosp Moinhos de Vento Porto Alegre, BR-90035000 Porto Alegre, RS, BrazilOncoctr, BR-30360680 Belo Horizonte, MG, BrazilUniv Fed Rio Grande do Sul, Dept Cirurgia, BR-90040060 Porto Alegre, RS, BrazilHosp Clin Porto Alegre, BR-90035903 Porto Alegre, RS, BrazilUniv Fed Ceara, Fac Med, Dept Fisiol & Farmacol, BR-60020180 Fortaleza, Ceara, BrazilHosp Univ Walter Cantidio, BR-60430370 Fortaleza, Ceara, BrazilInst Nacl Canc, BR-20230240 Rio De Janeiro, BrazilUniv Sao Paulo, Fac Med, Disciplina Endocrinol & Metabol, BR-01246903 Sao Paulo, BrazilAC Camargo Canc Ctr, Dept Surg, BR-01509010 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Gastroenterol, Sao Paulo, BrazilUniv Fed Ciencias Saude Porto Alegre, BR-90050170 Porto Alegre, RS, BrazilHosp Albert Einstein, BR-05652900 Sao Paulo, BrazilHosp Base, Fac Med Sao Jose do Rio Preto, BR-15090000 Sao Paulo, BrazilSanta Casa Sao Jose do Rio Preto, BR-15025500 Sao Jose Do Rio Preto, BrazilPontificia Univ Catolica Parana, Hosp Erasto Gaertner, BR-81520060 Curitiba, Parana, BrazilUniv Fed Rio Grande do Norte, BR-59300000 Natal, RN, BrazilUniv Sao Paulo, Inst Coracao, BR-05403900 Sao Paulo, BrazilAC Camargo Canc Ctr, Med Oncol, BR-01509010 Sao Paulo, BrazilUniv Fed Sao Paulo, Disciplina Gastroenterol, BR-04021001 Sao Paulo, BrazilHosp Sao Rafael, BR-41253190 Salvador, BA, BrazilHosp Canc Barretos, Dept Cirurgia Aparelho Digest Alto & Hepatobiliop, BR-14784400 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Patol, BR-01246903 Sao Paulo, BrazilClin AMO, BR-1950640 Salvador, BA, BrazilHosp Sao Jose, BR-01323001 Sao Paulo, BrazilUniv Nove de Julho, BR-02111030 Sao Paulo, BrazilUniv Fed Sao Paulo, Disciplina Gastroenterol, BR-04021001 Sao Paulo, BrazilWeb of Scienc
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