bluuebunny/crossref_metadata_2025_split huggingface dataset:
Badania i ocena szkodliwości drgań mechanicznych występujących na stanowiskach pracy w górnictwie nafty i gazu
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Buczek Janusz , Balawajder Zbigniew ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Kwilosz Tadeusz ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy
Published: June 2019

Acceleration associated with mechanical vibrations on drilling rigs during drilling and in similar mining equipment have harmful effects on workers present at their work stations. This adverse condition coexists together with other numerous environmental factors characteristic for the activity of drilling equipment. Drawworks, combustion engines, mud pumps, electrical generators, shale shakers, pneumatic grinders are mechanisms creating different kinds of vibrations during their work. It happens, that vibration amplitude exceeds allowable values of obligatory standards or legal regulations, and puts workers at risk of health loss. In order to determine the magnitude of vibration, measurements and tests are performed periodically mainly at work stations. Whole body vibrations (WBV) (transmitted to the human body through his legs, pelvis, back or shoulders) and hand-arm vibrations (HAV) (acting through hands) have been measured and interpreted. The main parameters characterizing the harmful factors acting on workers, such as: permissible values of vibration acceleration, permissible exposure time have been calculated and compared with measured values. Ratios of measured vibration values to Occupational Exposure Limits (NDN) were evaluated. A comparison of the changes in the NDN index that took place in 2005–2016 at work stations for selected drilling equipment was made. The publication discusses the issue of mechanical vibrations occurring at work stations. Pilot vibration surveys were performed according to the requirements described in Polish regulations and appropriate EU documents. By comparing measured vibration values with OEL, the degree of their harmful effect was determined. In order to facilitate and accelerate calculations, a spreadsheet was prepared. Elaborated measuring and interpretation methods were implemented in the form of a spreadsheet and are currently used to evaluate mechanical vibrations in oil industry plants and in other similar industries.
Notas sobre Gustav Landauer: romántico revolucionario a propósito de Escepticismo y mística.
Authors: Méndez Moissen Sergio 
Published: June 2019

Gustav Landauer fue un socialista heterodoxo. De formación judía y afín al mesianismo su pensamiento fue romántico anticapitalista. Fue asesinado por su participación en la Revolución Alemana de 1919. Escribió Escepticismo y mística en 1901 y es un autor central para el pensamiento libertario de Europa Central. Este texto reflexiona sobre Escepticismo y mística y lo introduce dentro del concepto de historia y de revolución mesiánica en el proyecto de Landuaer. Finaliza con una reflexión sobre la actualidad de dicho pensamiento.
O RETORNO ESCOLAR NA IDADE ADULTA POR MULHERES DO CENTRO EDUCACIONAL DE JOVENS E ADULTOS DE SINOP-MT
Authors: Oliveira Patrícia da Silva , Oliveira Tânia Pitombo de 
Published: June 2019

O objetivo desse trabalho é apresentar de que forma o espaço escolar significa para um grupo de mulheres da Educação de Jovens e Adultos. Nos aliamos à Análise de Discurso Materialista Histórica. A pesquisa é de cunho qualitativo e a coleta de dados efetivou-se por meio de entrevista semiestruturadas. Os sujeitos pesquisados são três mulheres estudantes do Centro Educacional de Jovens e Adultos, da cidade de Sinop-MT. Consideramos que a ruptura escolar ocorreu comumente entre as entrevistadas por meio do casamento e que o retorno escolar significa, para elas, o recomeço e o desejo pela ascensão social.
O NATAL DOS SONHOS DELES
Authors: Mendonça Fernanda Dias de Los Rios , Pessoa Sue Anne Guimarães Cursino 
Published: June 2019

Neste artigo, analisamos uma obra de arte produzida como contra-resposta à má administração do dinheiro público por representantes políticos de Parintins, cidade do interior do Amazonas. A análise apreendida subsidia-se nos aportes teórico-metodológicos do Círculo de Bakhtin, sobretudo, na perspectiva dialógica da linguagem. De acordo com essa diretriz epistemológica, o objeto de análise é tomado como enunciado concreto situado em uma esfera de atividade demarcada por uma construção inacabada e cujo resultado discursivo apresenta-se, simultaneamente, como obra artística e como resistência político-ideológica inserida na materialidade histórica dos contextos sociais imediato (Parintins) e mediatos (Amazônico e Brasileiro).
Association analysis and in-vitro anti-fungal assay reveal a role for the Pinus monticola PR10 gene (PmPR10-3.1) in quantitative resistance to white pine blister rust
Authors: Liu Jun-Jun , Fernandes Humberto , Zamany Arezoo , Sikorski Michal , Jaskolski Mariusz , Sniezko Richard A. 
Published: June 2019

Abstract
Background

Pathogenesis-related (PR) proteins play important roles in plant defense response. However, functional investigation of PR10 genes is still limited and their physiological roles have not been conclusively characterized in biological processes of forest conifer trees.

Results

To elucidate the biological roles of PR proteins of class 10 (PR10) in tree resistance to pathogens, in the present study we identified multiple novel members in the complex PmPR10 family of western white pine (Pinus monticola Douglas ex D. Don). Phylogenetic analysis revealed that PmPR10 genes were grouped into clusters and sub-clusters, showing a relatively high synteny between the same cluster/sub-cluster across different species of five-needle pines. RNA-seq-based global gene expression study demonstrated the PmPR10 genes were differentially expressed in response to infection by Cronartium ribicola, an exotic fungus causing white pine blister rust (WPBR) across North America. Among all family members, PmPR10-3.1 transcripts were significantly up-regulate at both early and late stages post rust infection. This gene was further revealed to have significant contribution to host quantitative resistance to WPBR by an association study. Moreover, PmPR10-3.1 recombinant protein exhibited inhibitory effects on spore hyphal growth of fungal pathogens C. ribicola, Phoma exigua and P. argillacea by in-vitro antifungal analysis.

Conclusion

Our results suggest that PmPR10-3.1 may function as an important component in conifer basal immunity for non-specific resistance to a wide spectrum of pathogens.
GhYGL1, a pentatricopeptide repeat protein, is required for chloroplast development in cotton
Authors: He Peng , Wu Shuyin , Jiang Yanli , Zhang Lihua , Tang Meiju , Xiao Guanghui , Yu Jianing 
Published: June 2019

Abstract
Background

The pentatricopeptide repeat (PPR) gene family, which contains multiple 35-amino acid repeats, constitutes one of the largest gene families in plants. Pentatricopeptide repeat genes function in organelles to target specific transcripts and are involved in plant development and growth. However, the function of PPR genes in cotton is still unknown.

Results

In this study, we characterized a PPR gene (GhYGL1), producing a yellow green leaf phenotype, that is required for cotton plastid development. The GhYGL1 gene has a DYW domain in C-terminal and is highly express in leaves, localized to the chloroplast fractions. GhYGL1 share high amino acid-sequence homology with AtECB2. In ecb2-mutated Arabidopsis, overexpression of GhYGL1 rescued the seedling lethal phenotype and restored the editing of accD and ndhF transcripts. Silencing of GhYGL1 led to the reduction of chlorophyll and phenotypically yellow-green leaves in cotton. Compared with wild type, GhYGL1-silenced cotton showed significant deformations of thylakoid structures. Furthermore, the expression levels of plastid-encoded polymerase- (PEP) and nuclear-encoded polymerase- (NEP) dependent genes were significantly decreased in GhYGL1-silenced cotton.

Conclusions

Our data indicate that GhYGL1 not only controls the editing of accD and ndhF genes, but also controls the expression of NEP- and PEP-dependent genes to regulate the development of thylakoids, and therefore regulates leaf variegation in cotton.
Vision status of children aged 7 - 15 years referred from school vision screening in Norway during 2003 - 2013: a retrospective study
Authors: Falkenberg Helle K , Langaas Trine , Svarverud Ellen 
Published: June 2019

Abstract
Background: Undetected vision problems is an important cause of reduced academic achievement, performance in everyday life and self-esteem. This receives little attention in national health care services in Norway even though most of these vision problems are easily correctable. There are no published data on how many Norwegian schoolchildren are affected by correctable vision problems. This study aims to determine the vision status in primary and secondary schoolchildren referred from vision screening during the 10 year period of 2003 -2013.
Methods: Of the 1126 children (15%) aged 7 - 15 years referred to the university eye clinic by the school screening program, all 782 who attended the eye clinic were included in the study. Patient records were retrospectively reviewed with regard to symptoms, refractive error, best corrected visual acuity (BCVA) of logMAR, binocular vision, ocular health and management outcomes.
Results: Previously undetected vision problems were confirmed in 650 (83%) of the children. The most frequent outcomes were glasses (346) or follow-up (209), but types of treatment modalities varied with age. Mean refractive errors were hyperopic for all age groups but reduced with age (ANOVA, p < 0.001). Overall, 51% were hyperopic, 32% emmetropic and 17% myopic. Refractive errors did not change across the decade (linear regression, all p > 0.05). Mean logMAR BCVAs were better than 0.0 and improved with age (ANOVA, p < 0.001). The most prevalent symptoms were headaches (171), near vision problems (149) and reduced distance vision (107).
Conclusions: The vision screening identified children with previously undetected visual problems. This study shows that the types of visual problems varied with age and that most problems could be solved with glasses. Our results stress the importance of regular eye examinations and that vision examinations should be included in primary health care services. Furthermore, there is a need for raised awareness among parents and teaching staff regarding vision problems in children.
Patterns of Uveitis in Children According to Age: Comparison of Visual Outcomes and Complications in a Tertiary Center
Authors: Al-Haddad Christiane , BouGhannam Alaa , Fattah Maamoun Abdul , Tamim Hani , Moussawi Zeinab Ali El , Hammam Rola 
Published: June 2019

Abstract
Background: Uveitis in the pediatric population is uncommon, accounting for 2 to 14% of all uveitis cases, yet resulting in significant ocular morbidity. A number of studies have focused on patterns and complications of uveitis in the pediatric age group (≤ 16 years). In this report, we studied children with uveitis syndromes focusing on demographics, anatomic distribution, etiologies, treatment, and complications. We additionally divided subjects into two age groups to look into any differential characteristics pertaining to the younger age group and the role of amblyopia as a cause of visual loss.
Methods: Retrospective chart review of 80 eyes of 49 uveitis patients aged ≤16years. Subjects were categorized by age of onset into visually immature (≤8 years) and visually mature group (>8 years). Data compared between the two age groups included demographics, disease characteristics, visual outcomes and complications.
Results: Idiopathic uveitis was the most common diagnosis (51%). Anterior uveitis complications (posterior synechiae and band keratopathy) were more common in the younger group (p=0.002 and p=0.03 respectively) while posterior uveitis manifestations (vitreous haze and vasculitis) were more common in the older age group (p=0.04 and p<0.001 respectively). Amblyopia was the most common cause of vision loss in the visually immature versus cataract in the visually mature.
Conclusion: Anterior uveitis and its complications were more common in visually immature group in our cohort. Amblyopia was identified as the main cause of visual loss in the younger population.

Keywords: Amblyopia; Complications; Pediatric; Uveitis
Examining its benefits of Medicinal cannabis among older residential care recipients diagnosed with dementia: A study protocol for an N-of-1 randomised trial
Authors: Timler Amanda , Bulsara Caroline , Bulsara Max , Vickery Alistair , Smith Jill , Codde Jim 
Published: June 2019

Abstract
Background: Dementia is a neurological condition that affects the cognitive and functional ability of the brain and is the leading cause of disability among those aged 65-years and above. More effective ways to manage dementia symptoms is needed as current treatment options (anti-depressant and antipsychotic) can be ineffective and associated with substantial side-effects, including increased rate of mortality. Medicinal cannabis has shown to inhibit some symptoms associated with dementia and the adverse effects are often minimal, yet little research has explored the use of this medication among this population. Aim. To monitor any effects in behaviour, Quality of life (QOL), and discomfort caused by pain when administering a purified dose of medicinal cannabis oil (3:2 THC:CBD). Methods/Design: We will carry out an 18-week randomised, double-blinded, crossover, N-of 1 trial that consists of two, 6-week treatment cycles and two, 2-week washout periods (between both cycles, and after the second treatment cycle). We aim to recruit 50 participants with dementia who are living in residential aged-care facilities. The participants will be randomised into two groups, and receive a dose of either medicinal cannabis oil or placebo for the first treatment cycle and receive the opposite medication for the second. A number of standardised validated questionnaires will be collected on seven occasions, and completed by the participants, aged-care staff, and nominated next of kin or family member. Participant heart rate and blood pressure will be monitored weekly and their body composition and weight will be monitored fortnightly by a research nurse in order to assess individual dose response and frailty. In addition, pre- and post-surveys will be administered to aged-care staff and family members to understand their perceptions towards medicinal cannabis, and to inform proposed focus groups consisting of the aged care staff and next of kin. Discussion: The study design has been informed by medical professionals and key stakeholders including those working within the residential aged-care industry to ensure patient safety, collection of non-invasive measures, and methodological rigor and study feasibility.
Evaluation of Nonparametric Models for Genomic Prediction of Early‐Stage Single Crosses in Maize
Authors: Kadam Dnyaneshwar C. , Lorenz Aaron J. 
Published: June 2019

ABSTRACTPrediction of single‐cross performance in a hybrid breeding program is extremely important because it is not feasible to evaluate all parental combinations. Recent simulation and field studies have shown great promise of genomic prediction of single‐cross performance. These previous studies, however, have primarily focused on parametric genomic prediction models. This study tested three nonparametric models—reproducing kernel Hilbert spaces, support vector regression, and neural networks—for prediction of early‐stage single crosses. Two separate datasets, consisting of 481 and 312 single crosses, were used to evaluate models. Single crosses were made by randomly crossing inbred progenies between heterotic groups. Genomic prediction models were trained to directly predict single‐cross performance, or to predict general combining ability (GCA) of inbred parents and specific combining abilities (SCA) of single crosses between them. Using cross‐validation, genomic predictions were compared with predictions using phenotypes of single crosses with a common parent (common‐parent single crosses), as well as phenotypic estimates of GCA. Of these three options for predicting single‐cross performance, genomic prediction resulted in the highest correlation between observed and predicted values. Predictive abilities of parametric and nonparametric genomic prediction models were nearly identical. All genomic prediction models displayed good ability to predict GCA effects, but none could predict SCA effects. Our results suggest that nonparametric models do not provide an advantage over parametric models for prediction of early‐stage, single‐cross performance using modestly sized training populations like those used here.
Population Structure and Genome‐Wide Association Analysis of Bruchid Resistance in Ethiopian Common Bean Genotypes
Authors: Tigist Shiferaw G. , Melis Rob , Sibiya Julia , Amelework Assefa B. , Keneni Gemechu , Tegene Asheber 
Published: June 2019

ABSTRACTThe common bean (Phaseolus vulgaris L.) is among the most important grain legume crops in Africa. However, the common bean grain is heavily damaged by the Mexican bean weevil (Zabrotes subfasciatus Boheman). This study was conducted to determine the population structure and genome‐wide marker–trait associations of bruchid resistance in the common bean. The phenotypic diversity and population structure of 297 genotypes were analyzed, using the Illumina BARCBean6K_3 SNP BeadChip. The genotypes consisted of landraces, released varieties, breeding lines, and Mexican bean weevil resistant lines. A population structure analysis based on a Bayesian genotype clustering approach classified the 297 genotypes into two subpopulations, namely, Middle American and Andean. Similar population patterns were also observed using principal component analysis. The genome‐wide association study analysis identified 24 single‐nucleotide polymorphisms (SNPs) on nine chromosomes, with a significant (P < 0.05) association with the percentages of adult emergence and seed weight loss. The SNPs located on Pv4 and Pv7 were significantly (P < 0.001) associated with the two traits. Other significant SNPs were identified on other chromosomes of the common bean, but none of them was above the cutoff point (1.00 × 10−4). Therefore, further verification of the SNPs that have a significant marker–trait association at P < 0.05 will be vital, and accessions with these SNPs may be useful as parental materials.
Predicting Cool‐Season Turfgrass Response with Solvita Soil Tests, Part 1: Labile Amino‐Nitrogen Concentrations
Authors: Moore David B. , Guillard Karl , Geng Xingyuan , Morris Thomas F. , Brinton William F. 
Published: June 2019

ABSTRACTCurrent turfgrass fertilizer recommendations do not account for potential mineralizable N in the soil. The Solvita Soil Labile Amino‐Nitrogen (SLAN) test measures a labile fraction of soil N. This study was conducted across 9 yr (2008–2016) in Connecticut to determine if responses from predominately Kentucky bluegrass (Poa pratensis L.) and tall fescue [Schedonorus arundinaceus (Schreb.) Dumort.] lawns are correlated to SLAN–N concentrations, and to determine the probability of turfgrass responses equaling or exceeding the response from benchmark urea rates in relation to SLAN–N concentrations. Randomized complete block design field experiments were set out with 23 rates of an organic fertilizer (0–2000 kg N ha−1 yr−1) and four different rates of urea (50, 100, 150, and 200 kg N ha−1 yr−1). Yearly spring soil samples were analyzed for SLAN–N concentrations, and turfgrass growth and quality responses were collected during the growing seasons. Turfgrass responded positively and linearly (P < 0.001) to SLAN–N concentrations, but correlations were relatively weak to moderate. When spring soil SLAN–N concentrations were ≥158, 165, 198, and 217 mg kg−1, there was a ≥90% probability that overall combined responses across species and measured variables would be equal to or greater than responses obtained from 50, 100, 150, and 200 kg urea N ha−1 yr−1, respectively. The SLAN test has promise as an objective soil test to categorize the N fertilization response potential of turfgrass soils, and this would be helpful in guiding N fertilization.
O que Informam os Formulários de Referência sobre as Características e Remuneração de Executivos?
Authors: Rissatti Jean Carlo , Salvador de Souza João Antônio , Borba Jose Alonso 
Published: June 2019

Utilizados como mecanismos para minimizar o conflito de interesses, os instrumentos de remuneração executiva estão associados às metas das empresas bem como as características dos gestores. Este artigo tem como objetivo identificar os tipos e os determinantes da remuneração dos executivos que compõem o conselho de administração, a diretoria estatutária e o conselho fiscal das empresas com ações negociadas no mercado acionário brasileiro. Para operacionalizar a pesquisa, foi composta uma amostra entre 2013 a 2016 com as companhias abertas que integravam o índice Ibovespa de 2017. As variáveis de remuneração executiva e característica dos conselheiros foram coletadas manualmente dos formulários de referência, sendo analisadas as características de 3.923 executivos/anos. As evidências indicaram que a remuneração baseada em ação aumentou nos três primeiros anos analisados, revertendo esta tendência em 2016. Pela análise econométrica foi possível identificar que: (i) conselhos maiores influenciam diretamente os planos remuneratórios; (ii) a presença de mulheres torna a remuneração mais conservadora; (iii) a dualidade de cargos reduz a remuneração executiva; (iv) a falta de independência tem impacto negativo na compensação dos executivos; (v) empresas com maior rentabilidade tendem a remunerar melhor seus executivos e; (vi) empresas onde o controlador é o Estado apresentam maior monitoramento o que reduz os planos de remuneração dos órgãos administrativos. Os achados são úteis para os participantes do mercado, que podem relacionar seus investimentos prospectivos com o perfil e tipos de remunerações dos executivos.
Quantitative microbial risk assessment (QMRA) to support decisions for water supply in affluent and developing countries
Authors: Smeets P. W. M. H. 
Published: June 2019

Abstract
Providing microbially safe water is a main goal of water supply to prevent endemic waterborne disease and outbreaks. Since increasing the level of safety requires resources, it is important to identify most relevant risks and efficient ways to reach health-based targets. Over the past decades, quantitative microbial risk assessment (QMRA) developed into a systematic, science-based approach to assess microbial risks through drinking water supply. In this study we present the QMRA approach and how it can be used to support decisions in both affluent and developing countries. This includes examples from the statutory QMRA in the Netherlands that led to efficient and effective improvements in water supply, not only in treatment, but also in monitoring and operation. In developing countries people often need to use various sources of drinking water. We will demonstrate how QMRA can help to improve insight in the relative risks of these routes and the effect of interventions.