ABSTRACT BACKGROUND: Understanding social determinants is crucial for implementing preventive strategies, especially for low birth weight (LBW)—a public health issue that severely increases the risk of morbimortality in children. OBJECTIVE: This study aimed to identify the factors associated with LBW among newborns, assisted by the Brazilian Unified Health System. DESIGN AND SETTING: It analyzed data from newborns and their mothers. The sample was selected by convenience from users of the public health system in Francisco Beltrão (Paraná, Brazil). METHODS: Cases (n = 26) were babies weighing ≤ 2,500 g and controls (n = 52) > 2,500 g. All babies were assessed and paired by sex and date of birth in a 1:2 proportion. Statistical power was computed a posteriori, revealing a power of 87% (α = 0.05). RESULTS: Strong and significant differences were found in the bivariate analysis, in which the number of current smokers or those who quit during pregnancy was higher among mothers of babies with LBW. Moreover, the gestational weeks were lower among these cases. Logistic regression models indicated that the gestational week (odds ratio [OR] = 0.17, 95% confidence interval [CI]:0.05–0.54) and fathers’ educational level (high school or above; OR = 0.22, 95% CI:0.06–0.99) were related to lower chances of low birth weight. CONCLUSIONS: Our findings confirm previous investigations on LBW's multi-causality, showing that the gestational week could reduce up to 82% chances of a baby being born with ≤ 2,500 g. Its association with paternal education underlines the importance of comprehensive policies to protect newborns. BACKGROUND strategies LBWa children OBJECTIVE System SETTING Paraná, Paraná (Paraná Brazil. Brazil . Brazil) METHODS n 26 2500 2 500 2,50 52 12 1 1: proportion posteriori 87 α 0.05. 005 0.05 0 05 0.05) RESULTS analysis Moreover cases odds [OR 017 17 0.17 95 CI0.05–0.54 CI005054 CI 0.05–0.54 54 [CI]:0.05–0.54 fathers high above 022 22 0.22 CI0.06–0.99 CI006099 0.06–0.99 06 99 CI:0.06–0.99 CONCLUSIONS LBWs s multicausality, multicausality multi causality, causality multi-causality 82 250 50 2,5 5 8 00 0.0 01 0.1 9 CI0 CI0.05–0.5 CI00505 005054 0.05–0.5 [CI]:0.05–0.5 02 0.2 CI0.06–0.9 CI00609 006099 0.06–0.9 CI:0.06–0.9 25 2, 0. CI0.05–0. CI0050 00505 0.05–0. [CI]:0.05–0. CI0.06–0. CI0060 00609 0.06–0. CI:0.06–0. CI0.05–0 CI005 0050 0.05–0 [CI]:0.05–0 CI0.06–0 CI006 0060 0.06–0 CI:0.06–0 CI0.05– CI00 0.05– [CI]:0.05– CI0.06– 006 0.06– CI:0.06– CI0.05 [CI]:0.05 CI0.06 0.06 CI:0.06 CI0.0 [CI]:0.0 CI:0.0 CI0. [CI]:0. CI:0. [CI]:0 CI:0 [CI]: CI: [CI] [CI

Resumen Objetivos: Este estudio transversal fue realizado para identificar las asociaciones y las condiciones de trabajo y salud entre los agentes penitenciarios en una prisión estatal de Paraná, Brasil. Material y método: Se utilizó una muestra aleatoria proporcional y estratificada de 125 individuos. Los participantes respondieron, de forma anónima, un cuestionario autoadministrado. Resultados: Los resultados mostraron prevalencia de trastornos psiquiátricos menores (TPM) de 30,4% (intervalo de confianza [IC] del 95%: 22,4-39,2); el 17,9% presentaron estrés persistente (IC del 95%: 12,2-25,2); el 66,4% presentaron hasta cinco quejas relacionadas con la salud (IC del 95%: 58,4-75,2); y el 9,6% tenían un mayor riesgo de abuso y/o dependencia del alcohol (IC del 95%: 4,8-16,0). Los análisis multivariantes mostraron que, con el resultado de los TPM, los problemas de salud (p <0,01), el ambiente físico (p <0,013) y los riesgos organizacionales (p <0,01) fueron factores predictores significativos. El estrés persistente fue un predictor con la edad (p = 0,031), los problemas de salud (p <0,01) y los riesgos organizacionales (p = 0,023); mientras que las quejas de salud se asociaron con problemas de salud (p <0,01) y el entorno físico (p <0,01). No había predictores significativos para riesgos de abuso y/o dependencia del alcohol. Discusión: En general, los resultados demostraron la naturaleza precaria del trabajo del agente penitenciario, revelan la importancia de la realización de nuevos estudios para evaluar si se trata de una realidad específica de la unidad investigada o si estos resultados son comunes en otros entornos penitenciarios.

Abstract Objectives: This cross-sectional study was carried out to identify the associations between working and health conditions among prison officers at a state prison in Paraná, Brazil. Material and method: A proportional and stratified random sample of 125 individuals was used. The participants, who were not identified, completed a self-administered questionnaire. Results: The results showed a prevalence of minor psychiatric disorders (MPD) of 30.4% (95%CI: 22.4-39.2). A total of 17.9% of the respondents had persistent stress (95%CI: 12.2-25.2), 66.4 had up to five health-related complaints (95%CI: 58.4-75.2) and 9.6% had scores that indicated higher risk for alcohol abuse and/or dependance (95%CI:4.8-16.0). Multivariate analyses showed that with an MPD outcome, health problems (p<0.01), physical environment (p=0.013) and organizational risks (p<0.01) were significant predictors. Persistent stress was predicted by age (p=0.031), health problems (p<0.01) and organizational risks (p=0.023), while health complaints were associated with health problems (p<0.01) and physical environment (p<0.01). There were no significant predictors for higher risk for alcohol abuse and/or dependance. Discussion: In general, the results demonstrate the precarious nature of the work of prison officers, and reveal the importance of further studies to evaluate whether this is a specific reality of the unit that was investigated, or whether these results are common in other prison environments.

Objetivo: determinar a prevalência da qualidade do sono e do transtorno mental comum em profissionais de enfermagem e os fatores associados à alteração do sono. Método: estudo transversal, analítico e quantitativo desenvolvido com 196 profissionais de enfermagem de um hospital público e um misto. Os dados foram coletados por meio de instrumento de caracterização sociodemográfica, do Self-Report Questionnaire 20 e do Índice de Qualidade de Sono de Pittsburgh e foram analisados por estatística descritiva e inferencial para identificar possíveis fatores associados com a alteração no sono. Resultados: a alteração do sono foi identificada entre os profissionais de enfermagem numa frequência de 76,5% (70,4-82,1). A qualidade do sono foi classificada como ruim em 41,8% (41,8-55,6) e o distúrbio do sono em 27,6% (21,4-34,2). Identificou-se uma prevalência de transtorno mental comum em 36,7% (30,1-43,9). O principal fator para a má qualidade do sono foi a presença de transtorno mental comum (Odds ratio: 5,15 p<0,001). Conclusão: as alterações de sono foram prevalentes e as características do ambiente de trabalho e a presença de transtorno mental comum apresentaram relevância com as alterações.

Objective: to determine the prevalence of sleep quality and common mental disorder in Nursing professionals and factors associated with sleep change. Method: a cross-sectional, analytical and quantitative study developed with 196 Nursing professionals of a public hospital and a mixed one. Data was collected by means of an instrument of sociodemographic characterization, by the Self-Report Questionnaire 20 and Pittsburgh Sleep Quality Index and were analyzed by descriptive and inferential statistics to identify possible factors associated with sleep changes. Results: sleep changes were identified among the Nursing professionals with a frequency of 76.5% (70.4-82.1). Sleep quality was classified as poor in 41.8% (41.8-55.6) and sleep disorder in 27.6%. (21.4-34.2). The prevalence of common mental disorder was identified in 36.7% (30.1-43.9). The main factor for poor sleep quality was the presence of common mental disorder (Odds Ratio: 5.15; p<0.001). Conclusion: sleep changes were prevalent and the characteristics of the work environment and the presence of mental disorder showed relevance in the changes.

Objetivo: determinar la prevalencia de la calidad del sueño y del trastorno mental común en los profesionales de enfermería y factores asociados a los trastornos del sueño. Método: se trata de un estudio transversal, analítico y cuantitativo desarrollado con 196 profesionales de enfermería de un hospital público y otro mixto. Los datos se recolectaron mediante un instrumento de caracterización sociodemográfica, utilizando el Self-Report Questionnaire 20 y el Índice de Calidad de Sueño de Pittsburgh y se analizaron utilizando estadísticas descriptivas e inferenciales para identificar posibles factores asociados con trastornos del sueño. Resultados: se identificaron trastornos del sueño entre los profesionales de enfermería con una frecuencia del 76,5% (70,4-82,1). La calidad del sueño se clasificó como mala en el 41,8% (41,8-55,6) y trastorno del sueño en el 27,6% (21,434,2). Se identificó una prevalencia de trastorno mental común en el 36,7% (30,1-43,9). El factor principal de la mala calidad del sueño fue la presencia de trastorno mental común (Odds ratio: 5,15 p<0,001). Conclusión: los trastornos del sueño fueron prevalentes y las características del entorno laboral y la presencia de trastorno mental común fueron relevantes para los trastornos del sueño.

RESUMO Objetivo Investigar e discutir os indicadores de mortalidade por câncer na Região Sul do Brasil entre 1988 e 2012. Métodos Revisão crítica da literatura baseada na análise de dados referentes às estimativas de incidência e mortalidade dos cânceres de próstata, mama feminina, brônquios e pulmões, colo de útero e ovário, realizada por meio de consulta na base de dados online do Instituto Nacional de Câncer José Alencar Gomes da Silva. Resultados A Região Sul lidera no país a incidência e a mortalidade das neoplasias estudadas. Há escassez de dados sobre o perfil do câncer nesta população, especialmente nos Estados de Santa Catarina e Paraná. Notou-se, ainda, incoerência entre os dados de registros hospitalares e registros de óbito no período estudado. Conclusão Tanto a incidência quanto a mortalidade decorrentes dos cânceres estudados ainda são muito elevadas no Brasil, com significante número de registros da doença e de óbitos, quando comparado às taxas mundiais. Fatores de risco regionais podem explicar as elevadas taxas.

ABSTRACT Objective To determine and discuss cancer mortality rates in southern Brazil between 1988 and 2012. Methods This was a critical review of literature based on analysis of data concerning incidence and mortality of prostate cancer, breast cancer, bronchial and lung cancer, and uterine and ovarian cancer. Data were collected from the online database of the Brazil Instituto Nacional de Câncer José Alencar Gomes da Silva. Results The southern Brazil is the leading region of cancer incidence and mortality. Data on the cancer profile of this population are scarce especially in the States of Santa Catarina and Paraná. We observed inconsistency between data from hospital registers and death recorded. Conclusion Both cancer incidence and the mortality are high in Brazil. In addition, Brazil has great numbers of registers and deaths for cancer compared to worldwide rates. Regional risk factors might explain the high cancer rates.

A espécie Alchornea triplinervia pertence à família Euphorbiaceae, uma das principais famílias da flora brasileira. Visando a contribuir para um melhor entendimento da espécie, foi realizada a contagem do número de cromossomos e a análise da microsporogênese de A. triplinervia. As Inflorescências foram coletadas nos Municípios de Paranavaí e Diamante do Norte, no Estado do Paraná, Brasil, sendo as lâminas preparadas pela técnica de esmagamento e coradas com carmim acético 1%. As análises foram realizadas ao microscópio óptico, revelando um número cromossômico para a espécie igual a 2n=8x=72. Irregularidades no processo de segregação dos cromossomos foram as principais anormalidades meióticas, mostrando comportamento típico de poliploides. Outras irregularidades foram observadas, porém, em baixa frequência, não comprometendo a formação dos grãos de pólen das plantas analisadas.

The Alchornea triplinervia specie belongs to the Euphorbiaceae family, one of the main families of the Brazilian flora. In order to contribute to a better understanding of the specie, a counting of chromosome number and the microsporogenesis analysis of A. triplinervia were done. The inflorescences were collected in the municipalities of Paranavaí and Diamante do Norte, State of Paraná, Brazil, and the slides were prepared by squashing technique and staining with 1% acetic carmine. The analysis were performed using an optical microscope and showed a chromosome number for the specie equal to 2n=8x=72. Irregularities in the chromosome segregation process were the main meiotic abnormalities, presenting typical polyploid behavior. Other irregularities were observed; however, at low frequency without compromising the pollen grain formation of the analyzed plants.

Cerca de 90% das espécies do gênero Passiflora são nativas das Américas, sendo que aproximadamente 200 espécies são nativas do Brasil. Possuem grande importância comercial, pois algumas espécies são utilizadas na alimentação humana, outras apresentam propriedades medicinais e ornamentais. A espécie Passiflora serrato-digitata faz parte do banco de germoplasma do Instituto Agronômico do Paraná - IAPAR, estação experimental de Londrina, PR. Botões florais colhidos foram fixados em etanol/ácido acético (3:1 v/v) por 24 horas, transferidos para álcool a 70% e acondicionado sob refrigeração. As lâminas foram preparadas pela técnica de esmagamento e coradas com carmim propiônico a 1,0% e observadas ao microscópio óptico. Por meio da análise do comportamento meiótico, foram verificadas irregularidades no processo de segregação dos cromossomos de P. serrato-digitata, tais como migração precoce para os pólos em metáfase I e II, cromossomos não orientados na placa equatorial em metáfase I e II, cromossomos retardatários em anáfase I e II, levando a formação de micronúcleo em telófases I e II e micrósporos em tétrades. Outra irregularidade observada foi aderência cromossômica, relatada pela primeira vez no gênero Passiflora, que também pode ter contribuído para a formação de mônades, díades, tríades, as quais foram observadas, resultando em micrósporos normais, desbalanceados, 2n e 4n. De acordo com o Índice Meiótico de 71,83% observado, essa espécie pode ser classificada como não estável meioticamente.

Almost 90% of species of the genus Passiflora are native to the American continent, with high commercial value due to the fact that some species are used for human food while others have ornamental and medical qualities. Passiflora serrato-digitata is one of the species that integrates the Paraná Agronomic Institute germoplasm bank at its experimental base in Londrina, PR, Brazil. Collected flower buds were fixed in ethanol/acetic acid (3:1 v/v) for 24h, transferred to 70% alcohol and stored under refrigeration. Slides were prepared by the squashing technique and stained with 1.0% propionic carmine; they were analyzed under an optic microscope. Irregularities in the chromosome segregation process of P. serrato-digitata have been verified by meiotic behavior analysis. These comprised precocious migration to poles in metaphase I and II, non-oriented chromosomes in metaphase plate in metaphase I and II, laggard chromosomes in anaphase I and II towards the formation of micronucleus in telophase I and II, and microspores in tetrads. Chromosome stickiness was another irregularity reported in the Passiflora genus for the first time. These irregularities which also contributed to the formation of monads, dyads and triads, resulted in normal imbalanced 2n and 4n microspores. According to the observed Meiotic Index of 71.83%, this species is not meiotically stable.

Algumas espécies africanas de Brachiaria foram introduzidas nas Américas e tornaram-se importantes pastagens nos trópicos. Novas cultivares podem ser obtidas por seleção direta da variabilidade genética existente na coleção de germoplasma ou por hibridização interespecífica. Poliploidia é predominante no gênero Brachiaria e correlacionada com apomixia, o que complica a hibridização. O objetivo dos estudos citogenéticos na coleção de germoplasma de Brachiaria da Embrapa Gado de Corte é determinar o número de cromossomos e o comportamento meiótico dos acessos. A microsporogênese foi avaliada em dois acessos de Brachiaria bovonei (BO01 e BO05) e um acesso de B. subulifolia (SU01). BO01 é pentaplóide (2n = 5x = 45), BO05 é tetraplóide (2n = 4x = 36), e SU01 é hexaplóide (2n = 6x = 54), todos derivados de x = 9. Anormalidades meióticas típicas de poliplóides, caracterizadas por migração precoce de cromossomos para os pólos em metáfases, cromossomos retardatários em anáfases, e micronúcleos em telófases e tétrades foram observadas em alta freqüência em todos os acessos gerando gametas geneticamente desbalanceados. Ambos os acessos de B. bovonei apresentaram aderências cromossômicas. Os resultados são discutidos sob o ponto de vista dos objetivos do melhoramento genético.

Some African species of Brachiaria have been introduced into the Americas and became the most important forage for pastures in the tropics. New cultivars can be obtained either from direct selections from the natural existing variability in the germplasm collections or from interspecific hybridizations. Polyploidy is predominant in the genus Brachiaria and correlated with apomixis which complicates hybridization. The objective of cytological studies underway on the Brachiaria germplasm collection at Embrapa Beef Cattle is to determine the chromosome number and meiotic behavior of accessions. For the breeding of Brachiaria species, compatible sexual and apomictic accessions need to be identified. Microsporogenesis was evaluated in two accessions of Brachiaria bovonei (BO01 and BO05) and one accession of B. subulifolia (SU01). BO01 is pentaploid (2n = 5x = 45), BO05 is tetraploid (2n = 4x = 36), and SU01 is hexaploid (2n = 6x = 54), derived from x = 9. Meiotic abnormalities typical of polyploids, characterized by precocious chromosome migration to the poles in metaphases, laggard chromosomes in anaphases, and micronuclei in telophases and tetrads, were recorded in high frequency in all the accessions generating unbalanced gametes. Both accessions of B. bovonei presented chromosome stickiness. The results are discussed in the view of the Brachiaria breeding program objectives.

Os dois acessos de B. dura analisados (DU01 e DU02) são hexaplóides (2n = 6x = 54), derivados de x = 9. Anormalidades meióticas como migração precoce de cromossomos para os polos, cromossomos retardatários e micronúcleos foram observados em baixa frequência em ambos os acessos. A presença de poucas associações cromossômicas em diacinese e a estabilidade meiótica sugere que a hexaploidia provavelmente resultou de duplicação cromossômica. No acesso DU02 observou-se transferência de cromossomos (citomixia) entre meiócitos, envolvendo parte ou todo o genoma. As implicações destes resultados para o melhoramento de Brachiaria são discutidas.

The two accessions of B. dura analyzed (DU01 and DU02) are hexaploid (2n = 6x = 54), derived from x = 9. Meiotic abnormalities, such as precocious chromosome migration to the poles, laggards and micronuclei, were recorded in low frequency in both accessions. The few multivalent chromosome association at diakinesis and meiotic stability suggested that hexaploidy probably resulted from chromosome doubling. In DU02, chromosome transfer (cytomixis) among meiocytes, involving part or the entire genome was observed. The implication of these findings for the Brachiaria breeding is discussed.

Microsporogenesis was analyzed in an interspecific hybrid between an artificially tetraploidized sexual accession of Brachiaria ruziziensis (R genome) and a natural apomictic tetraploid accession of B. brizantha (B genome). Chromosomes associated predominantly as bivalents. From this phase to the end of meiosis, chromosomes presented irregular segregation and abnormal arrangement in the metaphase plate. During metaphase I, in 27.8% of meiocytes, bivalents were distributed in two metaphase plates. In anaphase I, two distinct and typical bipolar spindles were formed. In 29.7% of pollen mother cells, one genome did not divide synchronically, with chromosomes lagging behind or not segregating at all. The second division was very irregular, resulting in polyads. Based on previous results from analysis of a triploid hybrid between these species, where the R genome was eliminated by asynchrony during meiosis, it is suggested that the laggard genome in this hybrid also belongs to B. ruziziensis.

Cytogenetic studies were carried out on 22 accessions of Brachiaria jubata from the Embrapa Beef Cattle Brachiaria collection. One accession was diploid (2n = 2x = 18) and the remaining 21 were tetraploid (2n = 4x = 36). Among five tetraploid accessions, a specific and constant pattern of cell fusion involving only two microsporocytes was recorded. Meiosis proceeded normally from prophase I to the end, giving rise to an octad with normal microspores that developed into fertile pollen grains. Regular octad formation was possible because each cellular chromosome set was maintained in its proper domain, spindles were correctly positioned, and cytokinesis planes were formed in the correct places. Such behavior of meiosis in syncytes has never been reported in any other plant species.