bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of collection samples of table watermel with unconventional pulp color
Authors: Baybakova N. G. , Varivoda G. V. 
Published: May 2021

Relevance. The study of the collection is one of the main sources of replenishing the source material for the breeding process. The presence of the necessary genetic traits can speed up the breeding process. Therefore, at the Bykovskaya melon breeding experimental station, the genetic diversity of melon plants is assessed and promising samples are selected for use in breeding.Materials and methods. The object of research was samples of table watermelon with an unconventional color of the pulp. The aim of the work is to study and isolate the source material of watermelon for use in the breeding process to create new varieties and hybrids of melon crops. In the course of the study, 12 varieties of table watermelon were identified from 33 varieties of the collection nursery, which are sources of economically valuable traits. The selection was carried out according to the yield, the rate of entry into fruiting, taste, color of the pulp.Results. In the course of the research, the obtained samples of table watermelon with an unconventional color of the pulp were evaluated according to a set of economic characteristics in comparison with the standards: Zenith and Sinchevsky. The analysis of the tested samples made it possible to identify 12 samples by economically valuable traits: 3 samples by early maturity and taste: White sugar lump, White wonder, Golden revenge F1; 7 samples with a high dry matter content, in terms of yield and large fruit: Moon and stars yellowflesh, Sweet Siberian, Orangeglo, Daisy, Clay county yellow meat, Mountain sweet yellow, Tendergold; 2 samples for color and pulp consistency: Early moon beane Bakerlneek, Tenderweet orange. The selected samples meet the modern requirements of the industrial melon growing industry, resistant to stress factors of the environment, good taste and consumer properties.Findings. The obtained experimental data will be used to create a genetic collection of watermelon according to the traits that determine the economic value of the gene pool for further use in the breeding process.
Low-volume and thin-layer panoponics in intensive artificial-light culture of cucumber: basics and results of application
Authors: Udalova O. R. , Anikina L. M. , Mirskaya G. V. , Kononchuk P. Yu. , Panova G. G. 
Published: May 2021

Relevance. The year-round provision of the population of our country with fresh vegetable products remainsis relevant. The creation and widespread implementation of high-tech automated phytotechnological complexes based on innovative technologies for growing plants in intensive light culture, including the development of new-generation root-dwelling environments, low-volume and thin-layer analogs of soil and systems for providing plants with water and mineral nutrition elements, is one of the promising ways to solve this problem.The purpose. Assessment of the influence of root environment conditions on the production process of cucumber plants in intensive light culture is the aim of our work.Methods. The research was carried out under controlled conditions of intensive artificial-light culture, when growing a hybrid of cucumber Tristan F1 by using of low-volume and thin-layer analogs of soil with the supply of a nutrient solution to the plant roots through a slit capillary and by drip irrigation with the use of plant growing light equipment developed at Agrophysical Institute.Results. Evaluation of the influence of the conditions of the root environment - alow-volume analogue of the soil based on high-moor peat – agrophyte and a thin-layer analog of the soil based on a clay suspension with a feed of nutrient solution through a slit capillary, on the production process of cucumber plants showed that in comparison with the control – a low-volume analog of the soil-agrophyte with a feed of nutrient solution by drip irrigation, there is growth acceleration of the cucumber hybrid Tristan F1 in the form of a positive trend and reliable values; as well as a significant increase in the number of fruits by 38-43%, the weight of fruits by 52-53% from the plant; an increase in the accumulation of raw by 38-40% and dry weight by 27-32% by cucumber leaves; an increase in the leaf surface area by 38-40%, leaf water content by 7.3- 9.6%; a significant or positive trend increase in the content of calcium in cucumber fruits by 18-29%, magnesium by 20-29%, iron by 5-16%, vitamin C by 17-23%, while the content of heavy metals and nitrates does not exceed exceeded the MPC in all variants. Methods of growing plants on low-volume and thin - layer analogs of soil with the supply of a nutrient solution to the roots through a slit capillary can be recommended for any cultivation facilities in conditions of intensive light culture.
Effect of high-voltage power lines electromagnetic field on growth and development of green bean (Phaseolus vulgaris L.)
Authors: Kaigorodova I. M. , Golubkina N. A. , Plotnikova U. D. , Ushakov V. A. , Antoshkin A. A. 
Published: May 2021

Relevance. High voltage electric power transmission lines (HVEPTL) cover a fairly large area of agricultural land all over the world. Investigations of electromagnetic field effect on growth and development of plants are held in various countries. The reaction of individual plant species and even varieties to the electromagnetic field manifests itself in different ways. The network of HVEPTL is growing steadily in our region as well. Nevertheless, information about the effect of the electromagnetic field on bean plants is rather scares. The aim of the present work was to evaluate HVEPTL effect on the growth and development of vegetable beans, depending on the intensity of the electromagnetic field.Material and Methods. The work was achieved on green beans Phaseolus vulgaris L. (Sakfit, Pagoda, MBZ 556, Arishka cvs) grown in conditions of different electromagnetic field values under HVEPTL. Biometrical parameters, plant productivity, yield, dry matter, photosynthetic pigments content, ascorbic acid, total antioxidant activity and total phenolics were determined.Results. In the ranges of electric field values from (5-10) to (400-440) B/m and magnetic field from 0 to 0.53 μT a beneficial effect of electromagnetic field on accumulation of leaves photosynthetic pigments (15-65% increase of chlorophyll а and 6-52% increase of chlorophyll b), polyphenol content (increase up to 17%), antioxidant activity (1-15% increase), and dry matter content (2,5-11% increase) and beans ascorbic acid levels (12-28% increase) were registered. Accordingy, increased plants growth, development and productivity were demonstrated. Peculiarities of beans plants grown under HVEPTL included decrease leaves carotene levels at electric field level of 60-100 B/m (70 m form HVEPTL), and lack of correlation between chlorophyll and carotene in leaves and total antioxidant activity and phenolics content at the stage of technical ripening.
Variability of morphological parameters of seeds in coriander populations
Authors: Bukharov A. F. , Kharchenko V. A. , Eremina N. A. 
Published: May 2021

Relevance and methods.In some Umbelliferae crops, the ratio of the parameters of the seed (the relative length of the embryo) has a significant effect on the ability of seeds to germinate. We studied 10 coriander samples, which showed significant differences in the degree of severity of the main morphological parameters, including the length of the seed, endosperm and embryo.Results. The indicators of the hybrid 5/19 and the variety Stimul significantly exceeded the average value of the population in the length of the seed at 1%, and the sample of the local population from Azerbaijan had the lowest indicator at the 5% level of significance. The endosperm length of the hybrid 5/19, the variety Stimul and the sample of the local population of Egypt exceeded the level of the indicator on average in the experiment. According to the length of the embryo, the Nectar variety, hybrid 5/19 and samples from Egypt and Azerbaijan were at the level of the average value for the experiment. The largest embryo (1.063±0.04) was distinguished by the Commander variety. Four samples significantly exceeded, and the hybrid 11/19 were lower than the average value. Depending on the variety, the coefficient of variation of indicators varied for the length of the embryo (13.9-19.1%), the length of the endosperm (16.4-20.4%) and the length of the seed (15.7-22.1%). The maximum value (0.377) of the IZ/E index, which characterizes the ratio of the size of the embryo and endosperm, was observed in the Commander variety. A close correlation was found between the length of the seed and the length of the endosperm, the correlation coefficient varied from r=0.640 in the Stimul variety to r=0.981 in a sample of the local population of Egypt. A weak or medium correlation was observed between the length of the embryo on the one hand and the length of the endosperm (0.026-0.393) and the seed (0.090 – -0.132) on the other. For the IE/S index, which characterizes the ratio of endosperm size to seed size, the limits (0.893-0.988) of variability were significantly lower. The maximum index (0.988) was found in a sample from Egypt.
Promising tomato hybrids for summer-autumn turnover in protected ground in Dagestan
Authors: Akhmedova P. M. 
Published: May 2021

Relevance. The region continues to build new industrial greenhouses every year, as well as mass construction of winter film greenhouses in the farms of the population of Flat and foothill Dagestan. Today, there are more than 250 hectares of them.Methods. Experimental work was carried out in the greenhouse of LLC Agro-AS in 2019-2020. Carried out selection and evaluation of promising hybrids of tomato for the summer-autumn turnover in greenhouses. Studied the duration of interphase periods, estimated the percentage of fruit set in the inflorescence, determined the yield of tomato hybrids, and calculated the most economically promising ones for the natural and climatic conditions of Dagestan.Results. For the first time in the conditions of flat Dagestan, the following experimental data are proved the main elements of industrial technology for obtaining a high yield of tomatoes in protected ground structures using low-volume hydroponic technology on a coconut substrate were experimentally justified; highly productive tomato hybrids were identified for various protected ground structures; F1 hybrids were distinguished by good yield from the second decade of September to the second decade of December; hybrids such as Men-Shuai F1 and Mamston F1 provided 24.3 kg/m2 and 23.1 kg/m2 , respectively, according to the highest percentage of fruit setting, as well as the total and commercial yield. The term of planting seedlings in the substrate in the summer and autumn turnover in the conditions of the suburbs of Makhachkala on July 10 is economically effective, which ensures a high yield and net income per unit area. At the selling price of tomato fruits of 100-110 rubles per 1 kg, the profitability of production, depending on the timing of harvesting and sales, was 100-122%.
Zaczyny cementowe z dodatkiem nanorurek węglowych do uszczelniania otworów wiertniczych o wysokiej temperaturze i ciśnieniu złożowym (150°C, 90 MPa)
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Kędzierski Miłosz , Rzepka Marcin ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy
Published: May 2021

The article presents the results of the influence of carbon nanotubes on the mechanical parameters of cement stones under high temperature and pressure conditions (150°C, 90 MPa). The tests used multi-walled carbon nanotubes (MWCNTs) with an external diameter of 10–20 nm and a length of 10–30 μm. Cement slurries contained 0.1% of CNTs bwoc (by the weight of cement). Laboratory tests of cement slurries were carried out at the Oil and Gas Institute – National Research Institute. The tests were carried out under conditions of increased pressure and temperature at 150°C, 90 MPa. Cement slurries were prepared on the basis of class G drilling cement. Developing recipes were guided by the requirements to be met by cement slurry for the cementing of casing in the conditions of high temperature and reservoir pressures. The densities of tested slurries ranged from 1900 kg/m3 to 2250 kg/m3 (slurries with the addition of hematite). The cement slurries were tested for density, fluidity, rheological parameters, filtration and thickening time. Compressive strength tests and measuring adhesion were carried out after 2, 7, 14 and 28 days. Cement slurry recipes with very good technological parameters were developed and after curing (after 28 days of hydration) had very high values of compressive strength, reaching up to 45 MPa. Cements were characterized by high values of adhesion to pipes reaching up 7 MPa after 28 days. The research showed significant information about possible applications of carbon nanotubes to modify the cement slurry under conditions of high temperature and pressure. The conducted tests confirmed that the addition of even small amounts of CNTs improves the mechanical parameters of the cement stone compared to the base sample without such addition, and also reduces the thickening time of cement slurries and reduces filtration. It is investigated that CNTs addition increases the viscosity and yield point of cement slurry. As a result, slurries with the addition of MWCNTs will more effectively displace the mud from the borehole and significantly affect the quality of cementation.
ARTESÃOS DIGITAIS E BENS COLETIVOS LOCAIS NA ECONOMIA DA COLABORAÇÃO<br/><br/>DIGITAL CRAFTSMANS AND LOCAL COLLECTIVE GOODS IN THE COLLABORATIVE ECONOMY
Authors: Ramella Francesco 
Published: May 2021

A tese deste artigo é que a ampliação da economia digital, juntamente com outros fatores, levou a uma expansão das atividades econômicas baseadas na colaboração entre indivíduos e organizações. A proposta é analisar a expansão das atividades econômicas baseadas na colaboração, colocando-as em um continuum regulatório que vai do mercado à reciprocidade generalizada. O artigo trata dessas questões, a partir de uma dupla perspectiva: uma teórica e outra empírica. Na primeira parte, apresentaremos as coordenadas conceituais da economia da colaboração. Na segunda, ilustraremos com os resultados de uma pesquisa sobre a difusão no mundo, e na Europa em particular, dos Laboratórios de Fabricação (Fab Labs). A pesquisa exemplifica os processos de digitalização da economia e uma possível estratégia analítica para estudar a economia da colaboração. Nas conclusões, finalmente, iremos discutir as lições que podem ser extraídas do caso dos Fab Labs.AbstractThe thesis of this article is that the expansion of the digital economy, along with other factors, has led to an expansion of economic activities based on collaboration between individuals and organizations. The proposal is to analyze these collaborative activities, placing them in a regulatory continuum that goes from the market to generalized reciprocity. The article deals with these issues from a double perspective: one theoretical and the other empirical. In the first part, I will present the conceptual coordinates of the collaborative economy. In the second, I will illustrate the results of a piece of research on the diffusion in the world, and in Europe in particular, of Fabrication Laboratories (FabLabs). A study, which exemplifies both the digitalization processes of the economy and a possible analytical strategy for studying the economy of collaboration. In theconclusions, finally, I will discuss the lessons that can be drawn from the case of Fab Labs.
A EXPANSÃO DA INTERNET NO BRASIL: DIGITALIZAÇÃO, MERCADO E DESIGUALDADES SOCIODIGITAIS<br/><br/>THE EXPANSION OF THE INTERNET IN BRAZIL: DIGITALIZATION, THE MARKET AND SOCIO-DIGITAL INEQUALITIES
Authors: Alves Elder P. Maia 
Published: May 2021

Este artigo trata das contribuições teóricas e metodológicas das ciências sociais para abordar o fenômeno da expansão e uso da internet no Brasil, e a formação dos níveis de desigualdade digitais. Para tanto, concentra-se na construção e uso dos principais conceitos, e na emergência e consolidação de um protocolo de pesquisa acerca das desigualdades digitais. O artigo demonstra que a sociedade brasileira se digitalizou, porém o fez, assim como no caso da industrialização, mantendo e, em grande medida até acentuando, as desigualdades off-line. AbstractThis article deals with the theoretical and methodological contributions of the social sciences to address the phenomenon of the expansion and use of the internet in Brazil and the formation of levels of digital inequality. To this end, it focuses on the construction and use of the main concepts and on the emergence and consolidation of a research protocol on digital inequalities. The article demonstrates that Brazilian society has digitalized, but it has done so, as in the case of industrialization, maintaining, and to a large extent even accentuating, offline inequalities.
Implementing an Evidence-Based Bundle to Reduce Early Labor Admissions and Increase Adherence to Labor Arrest Guidelines: A Quality Improvement Initiative
Authors: Telfer Michelle , Illuzzi Jessica , Jolles Diana 
Published: May 2021

BackgroundAt many hospitals, the cesarean birth rate among nulliparous term singleton vertex (NTSV) pregnancies is higher than World Health Organization benchmarks. Reducing NTSV cesarean birth is a national quality imperative. The aim of this initiative was to implement an evidence-based bundle at an urban community teaching hospital in at least 50% of labors in 60 days in order to reduce early labor admissions and increase adherence to evidence-based labor management guidelines shown to decrease cesarean birth.MethodsChart audits, root-cause analysis, and staff engagement informed bundle development. An early labor triage guide, labor walking path, partograph, and pre-cesarean checklist were implemented to drive change. Four Rapid Cycle Plan Do Study Act cycles were conducted over 8 weeks.ResultsThe bundle was implemented in 58% of births. The bundle reduced early labor admissions labor from 41% to 25%. Team knowledge reflecting current guidelines in labor management increased 35% and 100% of cesareans for labor arrest met criteria. Patient satisfaction scores exceeded 98%.ConclusionsImplementing an evidenced-based bundle was effective in reducing early labor admissions and increasing utilization of and adherence to labor management guidelines.Implications for NursingImplementation of evidence-based bundles has the potential to achieve meaningful quality improvements in maternity care.
O sonho e o desencanto
Authors: Oro Ari Pedro 
Published: May 2021

Este artigo analisa a viagem do renomado Pai-de-santo Cleon de Oxalá, de Porto Alegre, para a província africana de Cabinda, ocorrida em junho de 2012. Era, para ele, a realização do sonho de conhecer a terra dos seus ancestrais religiosos e o cumprimento da missão de trazer para a sua “casa” uma porção de terra de Cabinda, para selar simbolicamente o vínculo entre os dois espaços sagrados. Porém, a realização do sonho foi acompanhada do desencanto em relação à situação da religião “tradicional” cabinda em solo africano, o que conduziu Pai Cleon a concluir que a verdadeira religião dos seus antepassados não está mais na África, mas no Rio Grande do Sul.
The Estimation of Residual Variance in Nonparametric Regression
Authors: Wahab Abdul , Budiantara I Nyoman , Fitriasari Kartika 
Published: May 2021

Given a nonparametric regression model
Yi = g(xi) + ei, i = 1, 2, …, n,
where Y is a dependent variable, x is an independent variable, g is an unknown function and e is an error assumed to be an independent, identical, and is distributed with mean 0 and variance σ2. In this research Rice estimator is used to determine the biased value of a residual variance estimator. The Rice estimator is given as follows:
.
The biased value of residual variance estimator of the Rice method is:
, where and.
Using the Rice estimator, the Tong-Wang residual variance estimator is obtained, that is:
,
Where , , ,
, , k = 1, 2, … , m.
Based upon the data simulation by considering the exponential, arithmetical, and trigonometrical models, it is found that the MSE value of the Tong-Wang estimator tends to be less compared to those of the Rice estimator as well as the GSJ (Gasser, Sroka, and Jennen) estimator.
The Effect of Plasmonic Nanoparticles and the Thickness of Anode Interface Layer on the Efficiency Enhancement of Organic Solar Cells
Authors: Ahmadi Neda 
Published: May 2021

Abstract
We investigate the effect of nanoparticles (NPs) position on the optical parameters of organic solar cells (OSCs). We change the position of NPs inside the anode
interface layer (AIL) and active layer and study the role of NPs position in light
transmission, power absorption, short-circuit current density (Jsc), and maximum
generation rate. We also use silver (Ag) nanoparticles inside the anode interface
layer and investigate the optical parameters. Moreover, we study the role of AIL
thickness in light transmission and power absorption. We use finite-different timedomain (FDTD) method for all simulations. This study can be useful for new
perspectives and light management in organic solar cells.
A Formative Quality Improvement Implementation Study To Improve Care Transitions Through Information Capture Upon Admission To An Acute Mental Health Ward
Authors: Tyler Natasha , Wright Nicola , Gregoriou Kyriakos , Waring Justin 
Published: May 2021

Abstract
Background: Many interventions have been developed that aim to improve the transition from ward to community at the time of discharge, with varying success. Guidelines suggest that discharge planning should begin at admission, but in reality this is ideal rather than standard practice. This quality improvement aims to develop a novel intervention that improves mental health care transitions by providing a framework for capturing relevant information at admission that facilitates and accelerates discharge. Methods: A formative implementation study to co-design, implement and evaluate a novel tool that improves information capture upon admission to acute mental health wards within a single English National Health Service (NHS) trust. Two cycles of PDSA were completed which included two workshops based on the principles of co-design. During implementation the tool was piloted on three wards. Ethnographic observations (145 hours) and interviews (45) were used to evaluate the implementation of the tool across the three wards. The consolidated framework for implementation research was used to analyse and categorise the qualitative data generated. Results: The tool developed considerably as the process evolved. The finished product is a list of 10 information categories that should be captured from external agencies upon admission to facilitate discharge planning. The most reported advantages of the tool were: 1) facilitating confidence in junior staff to legitimately question the suitability of a patient for an acute ward 2) collecting and storing essential information in a single accessible place that can be used throughout the care pathway and 3) collecting information from the services/agencies that patients will eventually be discharged to. The consolidated framework analysis highlighted multiple barriers to implementation from both an outer and inner setting perspective. Conclusions: The results suggest that improving the quality of information captured upon admission has the potential to facilitate and accelerate discharge. The novel tool provides a framework for capturing this information that can be incorporated into existing information systems.