bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance of Nile Tilapia and vegetables Grown in Different Aquaponic Volumes
Authors: Barbosa Phillipe Thiago Leite , Povh Jayme Aparecido , Silva André Luiz Do Nascimento , Ventura Arlene Sobrinho , Stringhetta Giovanna Rodrigues , Laice Laice Menes , De Oliveira Antonio Francisco , Carvalho Thainá Arruda de , Correa Filho Ruy Alberto Caetano 
Published: October 2020

The objective of this study was to evaluate the performance of Nile tilapia and the lettuce, watercress, and arugula vegetables in a gravel-bed aquaponic system using the aerated fish tank-to-vegetable growing bed volume ratios of 1:1 and 1:2. Each experimental unit consisted of an aquaponic module composed of two containers: one to allocate the vegetables (500-L tank with gravel, measuring 2 m2) and another to stock fish at the ratios of 1:1 (500-L vegetable:500-L fish tank) and 1:2 (500-L vegetable tank:1000-Lfish tank). The experiment was laid out in a randomized-block design with two treatments (500-L fish tank × 1000-L fish tank) and three blocks (periods). The performance of the Nile tilapia and of the vegetables did not differ significantly in response to the increasing fish tank volume, with the fish and the vegetables exhibiting good performance results in both volume ratios. In conclusion, in aquaponics, the fish tank-to-vegetable tank volume ratios of 1:1 and 1:2 are equally effective for the production of Nile tilapia and the lettuce, watercress and arugula vegetables.
O impacto da informação existente no SIGADAER na gestão do conhecimento
Authors: Martins João Batista 
Published: October 2020

Introdução: O objetivo desta pesquisa científica focou na identificação da influência da informação existente no SIGADAER (Sistema Informatizado de Gestão Arquivística de Documentos da Aeronáutica) na geração de conhecimento em uma Organização Militar (OM) estratégica da Força Aérea Brasileira (FAB). O sistema foi implantado na Organização em agosto de 2010, sendo utilizado como o padrão na tramitação de documentos informatizados na Instituição. Método: Quanto à metodologia, essa pesquisa classifica-se como descritiva, pois descreve o comportamento dos usuários no que tange à utilização da informação e sua consequente geração de conhecimento. Utilizou-se, como instrumento de coleta de dados, um questionário dividido em dois Grupos: I – Critérios de escolha do usuário e II – Geração de conhecimento. A amostra foi constituída por quarenta oficiais superiores. A quantidade de respondentes resultou em vinte e nove militares, ou seja, 72,5% da amostra. Após a coleta de dados, realizou-se a análise fundamentada no referencial teórico da pesquisa científica: Modelo do valor agregado da informação e Espiral do conhecimento. Resultados: Foram agrupados de acordo com a escala de Likert com 5 itens, divididos em três grupos: percepção positiva (concordo totalmente e concordo parcialmente), percepção negativa (discordo totalmente e discordo parcialmente) e percepção neutra (não concordo e nem discordo). Os resultados sinalizaram que a informação existente no sistema possui valor agregado e que pode ser utilizada como matéria-prima na geração de conhecimento explícito e tácito da Organização, auxiliando na tomada de decisão. Conclusão: A pesquisa reforça o aspecto estratégico do compartilhamento de conhecimento corporativo.
Preliminary field observations of the Chilean earthquake of 3 March 1985
Authors: Dowrick David J. 
Published: October 2020

This paper is an initial appraisal of the effects of the M = 7.8 earthquake centred near San Antonio, Chile, which occurred on 3 March 1985. The author arrived in Chile six days after the main shock and spent a week investigating as many aspects as possible. The earthquake caused heavy damage to a large area including the major cities of San Antonio, Valparaiso and Santiago, and resulted in 700,000 people being made homeless.
Damage to engineered structures appeared to be less than might be expected for an earthquake of this magnitude, but non-structural damage was heavy. Eight or nine accelerographs recorded the shaking in different parts of the more heavily affected area and should help enrich the findings of the numerous valuable post-earthquake studies which will be possible.
Random Mutagenesis of Filamentous Fungi Strains for High-Yield Production of Secondary Metabolites: The Role of Polyamines
Authors: A. Zhgun Alexander 
Published: October 2020

A filamentous fungus (also called molds or moldy fungus) is a taxonomically diverse organism from phylum Zygomycota and Ascomycota with filamentous hyphae and has the ability to produce airborne spores or conidia. Currently, more than 70,000 molds are known, and some of them contain unique and unusual biochemical pathways. A number of products from such pathways, especially, the secondary metabolite (SM) pathways are used as important pharmaceuticals, including antibiotics, statins, and immunodepresants. Under different conditions, the individual species can produce more than 100 SM. The strain improvement programs lead to high yielding in target SM and significant reduction of spin-off products. The main tool for the strain improvement of filamentous fungi is random mutagenesis and screening. The majority of industrial overproducing SM strains were developed with the help of such technique over the past 50–70 years; the yield of the target SM increased by 100- to 1000-fold or more. Moreover, most of the strains have reached their technological limit of improvement. A new round of mutagenesis has not increased overproduction. Recently, it was shown that that the addition of exogenous polyamines may increase the production of such improved strains of filamentous fungi. The possible molecular mechanism of this phenomenon and its biotechnological applications are discussed.
Nupcialidad y dispensas matrimoniales en El Sagrario de la catedral de la ciudad de Puebla, Nueva España, durante el reinado de Felipe IV.
Authors: Grajales Porras Agustín , Illades Aguiar Lilián 
Published: October 2020

Con la conquista y evangelización del Nuevo Mundo se introdujo el modelo de vida cristiana y consigo las normas morales específicas en cuanto a la conducta sexual y la formación de las familias. El período de análisis toca al reinado de Felipe IV, distinguiendo dos etapas: 1621-1639 y 1661-1669. Con base en 3.391 actas de casamiento, el estudio apunta a situar algunos patrones socioculturales de la nupcialidad y el nivel de apego a las normas tridentinas y su expresión en la Nueva España. Específicamente, se intenta descubrir la importancia relativa de los matrimonios con impedimentos dirimentes que obtuvieron licencia y los recursos de los parroquianos para eludir las amonestaciones prenupciales. Otros tópicos de interés son el canon del matrimonio, su registro, la frecuencia y evolución de las nupcias, su estacionalidad y el comportamiento diferencial de los grupos étnicos mayores de la sociedad colonial: amerindios, españoles con mestizos y afrodescendientes.
With the conquest and evangelization of the New World, the model of Christian life was introduced and with it the specific moral norms regarding sexual behavior and the formation of families. The period of analysis refers to the reign of Philip IV, distinguishing two stages: 1621-1639 and 1661-1669. Based on 3.391 marriage acts, the study aims to situate some socio-cultural patterns of nuptiality and the level of attachment to Tridentine norms and their expression in New Spain. Specifically, an attempt is made to discover the relative importance of marriages with diriment impediments that were licensed and the resources of parishioners to avoid prenuptial admonitions. Other topics of interest are the canon of marriage, its registration, the frequency and evolution of marriages, their seasonality and the differential behavior of the major ethnic groups of colonial society: Amerindians, Spaniards with mestizos and Afro-descendants.
Evolución del cálculo de la latitud por la altura meridiana incluido en los textos para la formación de los pilotos de la Carrera de Indias en tiempo de los Austrias.
Authors: Pintos Amengual Gabriel 
Published: October 2020

Durante los siglos XVI y XVII, los Regimientos de Navegación fueron los textos donde se formaron los pilotos de la Carrera de Indias. Por lo que su análisis constituye un instrumento eficaz, para conocer el grado de formación que recibieron y su evolución. Dentro de los conocimientos exigidos a los pilotos se incluía el cálculo de la latitud observada por altura meridiana del Sol, lo que conformó el primer método astronómico de posicionamiento, que se les enseñó a los pilotos de la Carrera de Indias. En este artículo nos adentramos en el análisis de ese método de posicionamiento astronómico y su evolución a través de los textos seleccionados. Finalmente presentamos las reglas empleadas por los diversos autores, en las que durante el periodo estudiado no varió el procedimiento utilizado.
During the 16th and 17th centuries, the so-called “Regimientos de Navegación” were the textbooks used to educate the pilotos de la Carrera de Indias. Therefore, their analysis is an effective tool to know the degree of training they received and its evolution. Among the knowledge required of the pilots was the calculation of the observed latitude by the meridian height of the Sun, which was the first astronomical method of positioning taught to the pilots of the Carrera de Indias. In this article, we delve into the analysis of this method of astronomical positioning and its evolution through the selected texts. Finally, we present the rules used by the various authors in which the procedure used did not vary during the studied period.
Fuentes primarias para el estudio de las rentas de propios y arbitrios de los municipios indianos.
Authors: Caño Ortigosa José Luis 
Published: October 2020

La administración política, judicial y económica en la América española se vertebró, en última instancia, a partir de los ayuntamientos y sus gobiernos municipales. Representantes de la autoridad del Rey, eran el eslabón más cercano y directo al vasallo de la jerarquía absolutista. Asimismo, los Cabildos eran la primera representación de la población a la que gobernaban, impartían justicia, cobraban impuestos y daban servicios públicos. En ambos sentidos, en sus gestiones encauzadas verticalmente hacia las instituciones superiores, y hacia abajo en la aplicación de las medidas que aquellas les imponían, su capacidad de acción venía condicionada, sobre todo, por los recursos económicos a su disposición. Aparte, las políticas adoptadas de forma autónoma en los municipios también dependían de la economía local, de la autoridad reconocida y de las mercedes recibidas. Todo ello repercutió en las formas de actuar de cada municipio, en sus intereses y, consecuentemente, en las tipologías documentales que aparecen con más frecuencia en cada uno de ellos. La ordenación de esos tipos documentales, el análisis de su aparición y frecuencia, de las mercedes concedidas y las comunicaciones mantenidas nos aportan relevante y novedosa información que, en estudios comparativos, deben ofrecen nuevas respuestas e interrogantes sobre la temática. Interrogantes a los que hay que encontrar nuevos métodos históricos para darles solución.
Economical, judicial and political administration in Spanish America was supported, ultimately, by councils and their local governments. On the one hand, as legal representatives of the royal authority, they were the most close and direct link with the vassals of the absolutist hierarchy. On the other hand Cabildos were the first representatives of the population they ruled, they administer justice, collect taxes and give public services. In both ways, managing up for their superior authorities and managing down applying the current legacy, the ability of councils to act was limited, mainly by the lack of economical resources. Moreover, politics autonomously adopted by local governments depended on several factors as the local economy, their recognized authority and the favours received. All these things affected the ways in which the councils acted and to their interests, and consequently to the types of documents they generated which are the ones we can more frequently find nowadays. The order of those documents, the analysis of their appearances and frequencies, just as the study of the given favours and the communications maintained, provide us lots of relevant and original information that will offer, through comparative studies, new answers and questions on the subject. Questions that will need new historical methods to be solved.
Redescubrimiento de los pleitos judiciales de una temprana sociedad colonial. Corrientes, Río de la Plata (1588-1680).
Authors: Valenzuela Fátima , Pozzaglio Fernando 
Published: October 2020

En este artículo nos proponemos explorar el fondo judicial del Archivo General de la Provincia de Corrientes. Por un lado, desarrollaremos un catálogo de las causas judicializadas entre 1612 y 1680, es decir, un instrumento descriptivo que puede ser utilizado por historiadores y/usuarios del archivo. Por otro lado, caracterizaremos los pleitos que corresponden a los albores de la configuración de la ciudad de San Juan de Vera. En ese contexto, presentaremos una primera lectura en torno al funcionamiento de la justicia ordinaria y el accionar de otros funcionarios reales en el espacio colonial. De ese modo, lograremos una aproximación a los discursos y experiencias por medio de las causas judiciales.
In this article we propose to explore the judicial fund of the General Archive of the Province of Corrientes. On the one hand, we will develop a catalog of judicial cases between 1612 and 1680, that is, a descriptive instrument that can be used by other historians and users of the archive. On the other hand, we characterize the lawsuits that took place at the dawn of the configuration of the city of San Juan de Vera. In this context, we will develop a first reading about the operation of ordinary justice and the action of other royal officials in the colonial space. In this way, we get an approximation to discourses and experiences through judicial cases.
Beholde og rekruttere sykepleiere til sykehjem, en kvalitativ studie av avdelingssykepleieres erfaringer
Authors: Berge Hege , Eilertsen Grethe 
Published: October 2020

Retaining and recruiting nurses in nursing homes, - a qualitative study of nurse managers' experiences
The purpose of the study was to explore nurse managers in Norwegian nursing homes experiences with retaining and recruiting of nurses. The study has a qualitative exploratory design. Ten nurse managers in nursing homes were interviewed. Two main themes emerged from the analysis: “Retaining nurses - a difficult line to balance” and “Recruiting – a field of excellence with ideals and reality”. Retaining and recruiting nurses challenged nurse managers in finding a balance between facilitating professional development, supporting the nurses in independent prioritization of tasks as well as economic and organizational work that were occasionally perceived as an obstacle. Nurse managers play an important role in the nursing homes and influence nurses’ retaining rate through active leadership. Good leadership may lead to a good reputation, which in turn is vital in retaining and recruiting nurses.
Gold‐catalyzed C−H Functionalization of Phenothiazines with Aryldiazoacetates
Authors: Jana Sripati , Empel Claire , Pei Chao , Vinh Nguyen Thanh , Koenigs Rene M. 
Published: October 2020

AbstractPhenothiazine is an important structural motif in pharmaceuticals and advanced functional organic materials. However, the C−H functionalization reaction of N‐protected phenothiazine is rather unexplored and often shadowed by its chemical reactivity on the heteroatomic centers, which limits the diversity of its potential applications. This report demonstrates a straightforward approach towards the site‐selective C−H functionalization of phenothiazine at the para‐position of N atom via gold‐catalyzed carbene transfer reactions (37 examples, up to 83% yield). The mechanism behind the regionselectivity of the C−H functionalization reaction was also elucidated by a combination of computational and experimental studies.magnified image
Improvement of aeolian sandy soil in Mu Us, China with soft montmorillonite clay stone
Authors: Zhang Haiou , Guo Zhen , Li Juan , Lu Yangjie , Xu Yan 
Published: October 2020

AbstractAeolian sandy soil, common in Mu Us, China has poor structure and water holding capacity. The soft montmorillonite clay stone was used to adjust the structure and characteristics of sand soil. In this study, the soft montmorillonite clay stone was mixed with sand in the volume ratios of 1:1, 1:2, and 1:5. Soil texture, organic matter content (OMC), and effects on crop yield from 2010 to 2018 were determined. When corn (Zea mays L.) was planted, the clay content, fractal dimension (FD), and OMC of the 1:2 compound soil showed a steadily increasing trend with a higher rate than the 1:1 and 1:5 compound soil. When potato (Solanum tuberosum L.) was planted, the increasing rates of the FD and OMC were largest in the 1:5 compound soil. Potato planting increased the FD of the soil particles by 15.3%, and the OMC was 13.76 times higher than it was prior to planting. Corn and potato crops had the largest sustainable yield index (SYI) and average yield, and the smallest coefficient of variation (CV) in the 1:2 and 1:5 compound soils, respectively. This indicated that 1:2 and 1:5 compound soils allowed for the highest yield stability and sustainability. The 1:2 and 1:5 compound soils were suitable for corn and potato growth, and the compound soil properties exhibited a sustainable and stable development trend. Therefore, this indicates that 1:2–1:5 compound ratios can be used as the optimum sand clay ratios for improving the characteristics of aeolian sandy soil using soft rock.
Novel GLI3 pathogenic variants in complex pre‐ and postaxial polysyndactyly and Greig cephalopolysyndactyly syndrome
Authors: Patel Rashmi , Singh Subodh Kumar , Bhattacharya Visweswar , Ali Akhtar 
Published: October 2020

AbstractPolydactyly is a limb malformation and can occur as nonsyndromic polydactyly, syndromic polydactyly, or along with other limb defects. A few genes have been identified that cause various forms of syndromic and nonsyndromic polydactyly, of which GLI3 has been extensively explored. In the present study, GLI3 gene was screened by direct resequencing in 15 polydactyly cases with or without other anomalies. GLI3 screening revealed two novel pathogenic variants, NM_000168.6:c.3414delC [p.(H1138Qfs*68)] and NM_000168.6:c.1862C>T [p.(P621L)], found in two unrelated cases of familial complex pre‐ and postaxial polysyndactyly and sporadic Greig cephalopolysyndactyly syndrome (GCPS), respectively. The first pathogenic GLI3 variant, NM_000168.6:c.3414delC, causes premature protein truncation at the C‐terminal domain of GLI3. Alternatively, the second pathogenic variant, NM_000168.6:c.1862C>T, lies in the DNA binding domain of GLI3 protein and may affect its hydrophobic interaction with DNA. Both pathogenic GLI3 variants had reduced transcriptional activity in HEK293 cells that likely had led to haploinsufficiency and, consequently, the clinical phenotypes. Overall, the present study reports a novel familial case of complex pre‐ and postaxial polysyndactyly and the underlying novel pathogenic GLI3 variant expanding the clinical criteria for GLI3 mutational spectrum to complex pre‐ and postaxial polysyndactyly. Furthermore, this study also reports a novel GLI3 pathogenic variant linked to GCPS, highlighting the known genotype–phenotype correlation.
Selective Electrochemical Hydrolysis of Hydrosilanes to Silanols via Anodically Generated Silyl Cations
Authors: Liang Hao , Wang Lu‐Jun , Ji Yun‐Xing , Wang Han , Zhang Bo 
Published: October 2020

AbstractThe first electrochemical hydrolysis of hydrosilanes to silanols under mild and neutral reaction conditions is reported. The practical protocol employs commercially available and cheap NHPI as a hydrogen‐atom transfer (HAT) mediator and operates at room temperature with high selectivity, leading to various valuable silanols in moderate to good yields. Notably, this electrochemical method exhibits a broad substrate scope and high functional‐group compatibility, and it is applicable to late‐stage functionalization of complex molecules. Preliminary mechanistic studies suggest that the reaction appears to proceed through a nucleophilic substitution reaction of an electrogenerated silyl cation with H2O.
Phytochemical profiling of the stem bark of Betula utilis from different geographical regions of India using UHPLC‐ESI‐MS/MS
Authors: Mishra Tripti , Chandra Preeti , Kumar Brijesh , Baleshwar Meena , Joshi Pushpa , Rana Tikam Singh , Upreti Dalip Kumar , Pal Mahesh 
Published: October 2020

AbstractA simple, rapid, sensitive, and reliable ultra‐high‐performance liquid chromatography‐hybrid linear ion trap triple quadrupole mass spectrometry method was developed and validated for simultaneous determination of 10 bioactive compounds in stem bark of Betula utilis grown in high altitude of Himalaya, India. The objective of the study is to develop and validate ultra‐high‐performance liquid chromatography‐hybrid linear ion trap triple quadrupole mass spectrometry for investigation of geographical variations of triterpenoids, phenolics, and flavonoids contents in stem bark of B. utilis. The validated method was successfully applied to investigate geographical variations of triterpenoids, phenolics, and flavonoids in stem bark of B. utilis. The contents of betulinic acid and oleanolic acid were detected higher among selected analytes. The present variation study reveals great importance for the application and overall assessment of B. utilis.
Biopolymer blended films of poly(butylene succinate)/cyclic olefin copolymer with enhanced mechanical strength for packaging applications
Authors: Janjua Sadia , Hussain Zakir , Khan Zikriya , Liaqat Muhammad Arman , Umer Malik Adeel 
Published: October 2020

AbstractThe demand for biodegradable materials is on the rise because humanity is now more concerned about a sustainable lifestyle than ever before. In this regard, we present solution casting synthesized novel biopolymer blended films of poly(butylene succinate)/cyclic olefin copolymer (PBS/COC) for packaging applications. These films were characterized by X‐ray diffraction (XRD), Fourier transform infrared microscopy (FTIR), scanning electron microscopy (SEM), universal tensile testing (ASTM D882 standard), and antibacterial Disc diffusion tests using gram‐negative Escherichia coli (E.coli) and gram‐positive Staphylococcus aureus (S.aureus) bacteria. The XRD and FTIR revealed the type of bonding to be physical in‐between the constituent polymers; ensuring the biodegradable nature of their blends, while the thickness of films was found to be <100 μm. The SEM, tensile, and antibacterial testing concluded that 30%PBS with 70%COC by weight blending is the best composition; showing a compact/pin‐holes free morphology, the highest strength of 91 MPa, and contact inhibition with E.coli and S.aureus bacteria.