bluuebunny/crossref_metadata_2025_split huggingface dataset:
Predictors of Deceased Organ Donation in the Pediatric Population
Authors: Godown Justin , Butler Alison , Lebovitz Daniel J. , Chapman Gretchen 
Published: May 2021

BACKGROUND:A shortage of donor organs represents the major barrier to the success of solid organ transplantation. This is especially true in the pediatric population for which the number of organ donors has decreased over time. With this study, we aimed to assess the factors associated with deceased organ donor consent in the pediatric population and determine the variability in consent rates across organ procurement organizations (OPOs).METHODS:All eligible pediatric deaths were identified from the Scientific Registry of Transplant Recipients (2008–2019). The rate of organ donor consent was determined, and multivariable logistic regression was used to assess the factors independently associated with successful donor recruitment. The probability of donor consent was determined for each OPO after adjusting for patient demographics.RESULTS:A total of 11 829 eligible pediatric deaths were approached to request consent for organ donation. Consent was successful in 8816 (74.5%) subjects. Consent rates are lower in the pediatric population compared with young adults and are directly related to patient age such that eligible infant deaths have the lowest rate of successful donor consent. There is significant variability in donor consent rates across OPOs, independent of population demographic differences.CONCLUSIONS:OPO is predictive of pediatric deceased organ donor consent independent of demographic differences, with some regions having consistently higher consent rates than others. Sharing best practices for pediatric deceased donor recruitment may be a strategy to increase organ availability in the pediatric population.
Development of coalescents for paints and varnishes based on ionic liquids – the products of diethanolamine and inorganic acids interaction
Authors: Levchenko Yevhenii , Sverdlikovska Olga , Chervakov Denys , Chervakov Oleh 
Published: May 2021

This paper reports the synthesis of ionic liquids through the interaction between diethanolamine and orthophosphate and boric acids in order to establish the possibility of replacing volatile coalescents in a formulation for paints and varnishes with ionogenic compounds. The results from studying the influence of polymeric coalescents based on ionic liquids on the rheological properties of water-dispersion paints and varnishes of different nature are presented. It has been established that the synthesized coalescents could be used to modify the properties of paints and varnishes based on polyurethane and styrene-acrylic aqueous dispersions. It has been shown that the product of the interaction between diethanolamine and boric acid in aqueous solutions forms an ionogenic complex compound with a unipolar conductivity in terms of ОН─ ions. It was also established that when introduced to the formulation of water-dispersion paints and varnishes, the solutions of modifiers produce a diluting action. The influence of ionic liquids on the process of film formation of aqueous dispersions of polymers and pigmented paints and varnishes based on them was investigated. It was established that the synthesized ionogenic compounds are not inferior, in terms of their effectiveness, to the widespread conventional industrial coalescents of the Texanol→ type.
Therefore, there is reason to assert the possibility of replacing the industrial coalescent Texanol→ in the formulation of pigmented water-dispersion paints and varnishes based on styrene-acrylic and polyurethane dispersions with fundamentally new synthesized ionogenic modifiers. Thus, the coatings with a coalescent based on ion liquid of diethanolamine borate have a higher level of conditional hardness, which exceeds by 17 % the hardness index of the paint made on the basis of the conventional Texanol→ type coalescent, without changing its decorative properties, such as color and shine
A study of the pack carburizing quenching treatment with cane molasses cooling medium effect on the wear resistance of low carbon steel
Authors: Darmo Sujita , Sinarep Sinarep , Soenoko Rudy 
Published: May 2021

In the present study, various quenching media were added as cooling media for the quenching after pack carburizing treatment. The aim of this research is to get a suitable cooling medium for pack carburizing quenching treatment to increase the wear resistance of low carbon steel. Many cylindrical specimens for the adhesion wear tests were prepared from the used SS400 steel according to ASTM G99-04 specifications. Two heat treatment processes, namely pack carburizing and quenching were done. Firstly, the specimens are pack-carburized at a temperature of 875 °C, soaking time of 2 hours and quenched. The carburizing agent consists of Pinctada maxima shell powder (PMSP) and corn cob charcoal with a weight ratio of 30:70 %. Different cooling media (water, 10 % NaCl solution, 10 % cane molasses) in the pack carburizing quenching treatment are subjected to different kinds of tests. The hardness test was performed using Vickers micro hardness tester, the wear resistance was used in adhesive wear test, the carbon content was determined and microstructure examination was made using a scanning electron microscope (SEM-EDX). The result showed that all cooling media contributed to an increase in mechanical properties (surface hardness number, wear resistance), carbon content and microstructure change. The use of cooling media in the pack carburizing quenching process generally increases the surface hardness number of the specimen. The highest surface hardness number was 595 kg/mm2, respectively using 10 % cane molasses. The work shows that cane molasses can be used as a cooling medium for pack carburizing quenching of SS400 steel and contributed to the improvement of wear resistance
Developing organic cookies with improved consumer properties using safety management approaches
Authors: Tkachenko Alina , Guba Lyudmila , Basova Yulia , Goryachova Elena , Syrokhman Ivan 
Published: May 2021

In order to improve the mineral, vitamin composition, and nutritional value of flour confectionery products, new recipes for the "Flori" and "Janet" cookies baked from organic raw materials have been devised. Fully organic raw materials are used in the formulations of both products. The composition of cookies includes spelt flour, cornflour, coconut sugar, butter, dry coconut milk, sea buckthorn oil, hemp oil, lemon balm powder. The organoleptic assessment of cookies was conducted according to a 50-point scale developed by the authors of this paper. The developed samples ranked high on the tasting score: "Flori" (48.12) and "Janet" (49.25). The fat content was decreased in both samples; in the "Flori" sample ‒ by 0.9 g/100 g, and in the "Janet" sample ‒ by 1.2 g/100 g. The protein content increased in the samples, especially in the "Flori" cookies ‒ by 2.3 g/100 g. The "Janet" cookie sample demonstrated the lowest energy value of 380.50 kcal/100 g. The samples were distinguished by the low content of mercury, cadmium, and arsenic. The content of all mineral elements except for sodium increased in the developed biscuits. The potassium content increased by 2.34 times in the "Flori" biscuits and by 2.29 times in the "Janet" biscuits. The calcium content in the "Flori" cookies increased by 3.13 times, in the "Janet" cookies ‒ by 3.64 times. The content of manganese in both samples increased noticeably. Consuming the developed organic cookies makes it possible to increase the level of meeting the human body's requirements for macro- and microelements. The Ishikawa method was used to identify the main factors affecting the safety of cookies. A flowchart of cookie production was drawn up; the critical points were identified. These include the acceptance inspection of raw materials, heat treatment. The data obtained can be used by the confectionery industry to expand the range of organic products.
Devising nanotechnology for vegetable cryofrozen enrichers with biocomponents and the natural protein healthy snacks containing them
Authors: Pavlyuk Raisa , Pogarskaya Viktoriya , Yurieva Olga , Pogarskiy Aleksey , Maksymova Nadiya 
Published: May 2021

This paper reports the development of nanotechnology for processing vegetables (spicy and carotene-containing ones) into frozen cryoadditives – enrichers with biologically active substances (BAS), as well as natural protein health snacks containing them. An innovative method proposed for obtaining vegetable nano additives involves the use of deep processing of raw materials. The method is based on a complex effect exerted on raw materials by cryo-processing and cryomechanodestruction, making it possible not only to preserve the BAS of fresh vegetables but also to transform them into a nanostructured form in order to fully reveal the biological potential of the raw materials. The resulting nano additives made from vegetables have no analogs. The BAS mass fraction in the produced frozen cryoadditives is 3.0...3.2 times larger than that in the starting fresh raw materials. Vegetable-based cryoadditives that are used in the manufacture of snacks are not only the BAS carriers but also perform the functions of structure-forming agents, gel-forming agents, colorants, thereby making it possible to produce high-quality health products and eliminate the need for food additives.
Applying the vegetable-based frozen cryoadditives enrichers with biocomponents has made it possible to devise a new generation of natural protein snacks for healthy eating. The protein base used included nano additives made from legumes (peas) and soft salt cheese, which are distinguished by a high content of complete protein and are easily digestible. The new protein-vegetable snacks differ from conventional ones in the high content of β-carotene, phenolic compounds, tannins; 100 g of the product may satisfy about 30 % of the daily protein needs. The devised snacks are a new type of natural wellness products that are made without the use of artificial food additives and are recommended for industrial production.
Improvement of methods of comprehensive assessment of the operation efficiency of centralized heat supply systems in municipal heat power engineering
Authors: Kozlov Igor , Kovalchuk Vyacheslav , Klymchuk Oleksandr , Sova Katerina , Aksyonova Inna , Borysenko Krystyna 
Published: May 2021

The possibility of a comprehensive assessment of the efficiency of the operation of a district heating system based on the indicator of the overall efficiency of the equipment OEE (overall equipment efficiency) and its extension to the system as a whole is considered. The disunity of the direction of existing approaches in assessing the efficiency of operation of district heating systems does not allow a comprehensive assessment of the overall efficiency of the functioning of the technological sequence of the entire system.
It is proposed to consider efficiency as the probability of full functioning of all elements of the heat supply system.
It is shown that the heat output of the boiler house is proportional to the power consumption of the boiler house and is approximated by a periodic function.
It is shown that the main element of the heat supply system, which determines its efficiency, is the heat-generating source. As a result of the study, it is determined that the efficiency of the heat-generating source functioning increases as the maximum value of its efficiency is reached.
Numerical modeling has shown that the flexible use of the installed heat generator capacity contributes to an increase in the efficiency factor from 0.53 to 0.70 and the overall efficiency of the heat supply system can be increased by more than 30 %. When designing a boiler house, it was recommended to provide for the installation of capacities with gradation 1; 0.5; 0.25.
It is shown that the OEE indicator allows one to characterize the efficiency of both the heat supply system as a whole and its individual components, and can be used in the design and analysis of the operation of systems
Rebecca Ray, Cynthia A. Sanborn y Kevin P. Gallagher (Editores). 2020. La banca de desarrollo y el desarrollo sostenible: lecciones desde la Amazonía y los Andes.
Authors: Figueroa Tamara Natalia 
Published: May 2021

Reseña del libro La banca de desarrollo y el desarrollo sostenible: lecciones desde la Amazonía y los Andes editado por Rebecca Ray, Cynthia A. Sanborn y Kevin P. Gallagher en el año 2020. Este libro es una apuesta política, económica, ambiental y social a la continuidad del modelo de desarrollo sostenible en la región de la Amazonía andina desde la institucionalización del mismo. En este sentido a lo largo del texto el desarrollo es planteado como el escenario que posibilita las condiciones de bienestar para los actores involucrados en él, siempre que se implementen medidas que impidan cometer errores del pasado cercano.
Can Seismic Strain Waves Be Measured Quantitatively by Borehole Tensor Strainmeters?
Authors: Zhang Kanghua , Tian Jiayong , Hu Zhifei 
Published: May 2021

AbstractIt has been confirmed by comparison with particle velocities of surface waves of wave normal perpendicular to borehole axis measured by collocated seismic broadband array or borehole seismometers that high-sensitivity borehole tensor strainmeters could measure surface strain waves qualitatively. However, quantitative measurability of strain waves of wave normal being oblique to borehole axis by borehole tensor strainmeters is still a challenging problem. In this article, we introduce a scattering model of oblique-incidence seismic waves by an empty borehole to investigate the influence of incident-wave normal and polarization on theoretical-frequency-response bandwidth of borehole tensor strainmeters. Within the theoretical bandwidth of borehole tensor strainmeters, zero-frequency gains are introduced to build quantitative relation between instrumental strain waves of borehole tensor strainmeters and oblique-incidence seismic strain waves. Better understanding the influence of incident-wave normal and polarization on the relation between instrumental strain and strain components induced by the incident strain wave shows that incident-wave normal and polarization must be assessed by other instrumentation to promise quantitative measurement of incident strain waves by borehole tensor strainmeters, which would benefit in situ calibration of borehole tensor strainmeters.
Ocean-Bottom Seismology of Glacial Earthquakes: The Concept, Lessons Learned, and Mind the Sediments
Authors: Podolskiy Evgeny A. , Murai Yoshio , Kanna Naoya , Sugiyama Shin 
Published: May 2021

Abstract
About 70% of Earth’s surface is covered by ocean, for which seismic observations are challenging. Seafloor seismology overcame this fundamental difficulty and radically transformed the earth sciences, as it expanded the coverage of seismic networks and revealed otherwise inaccessible features. At the same time, there has been a recent increase in the number of studies on cryoseismology. These have yielded multiple discoveries but are limited primarily to land and ice-surface receivers. Near ice calving fronts, such surface stations are noisy, primarily due to crevassing and wind, are hazardous to maintain, and can be lost due to iceberg calving. To circumvent these issues, we have applied ocean-bottom seismology to the calving front of a tidewater glacier in northwest Greenland. We present details of this experiment, and describe the technical challenges, noise analysis, and examples of recorded data. This includes tide-modulated seismicity with thousands of icequakes per day and the first near-source (∼200–640  m) underwater record of a major kilometer-scale calving event in Greenland, which generated a glacial earthquake that was detectable ∼420  km away. We also identified a decrease in bottom-water temperature, presumably due to modified water stratification driven by extreme Greenland glacial melting, at the end of July 2019. Importantly, we identify glacial sediments as the key reason for the anomalously long (∼9.7  hr) delay in the sensor release from the fjord seafloor. Our study demonstrates a methodology to undertake innovative, interdisciplinary, near-source studies on glacier basal sliding, calving, and marine-mammal vocalizations.
The Elsinore earthquakes in central Utah, September 29 and October 1, 1921
Authors: Pack Frederick J. 
Published: May 2021

Summary and Conclusion
The towns of Elsinore and Monore are situated near the pivot of the great Sevier rift. Intense movements have occurred along this zone in somewhat recent geological times. The earthquakes of September 29 and October 1, 1921, were undoubtedly initiated by movements on one or more of the various planes of this fault zone. While it is undoubtedly true that the growth of the High Plateaus has practically ceased, and, therefore, that displacements on the Sevier fault are largely past, yet further recurrences are by no means improbable.
Desempenho Silvicultural em Sistema Silvipastoril do Clone H13 de Eucalyptus urograndis em Diferentes Densidades aos 12 Anos
Authors: Ribeiro Yuri Saiter , Vera Damaris Elias , Almeida Roberto Giolo de , Laura Valdemir Antônio 
Published: May 2021

Neste experimento objetivou-se avaliar o desempenho do clone H13 de Eucalyptus urograndis (Eucalyptus urophylla x Eucalyptus grandis) aos 12 anos, em diferentes densidades de plantio em área de pastagens degradadas no Cerrado em Mato Grosso do Sul. Os arranjos populacionais estabelecidos, foram para sistemas de integração pecuária e floresta (IPF, silvipastoris), para uso múltiplo da madeira, como: madeira serrada, construção civil, laminação e postes. O experimento foi realizado em Ribas do Rio Pardo, Mato Grosso do Sul. As árvores foram implantadas em uma roda de competição de Nelder e, em função do desenho experimental, os arranjos populacionais permitiriam avaliar densidades entre 180 e 1.332 plantas ha-1. Entretanto, considerando que o foco deste trabalho foi o sistema silvipastoril, efetuou-se a análise dendrológica nas densidades entre 180 e 584 plantas ha-1 [diâmetro a altura do peito (DAP, cm) e altura das plantas, em m] e calculou-se o volume de madeira (m³) produzido por árvore e por hectare). Pode-se concluir que para as variáveis altura, diâmetro a altura do peito (DAP) e produção de madeira serrada, a densidade espacial influenciou diretamente nos resultados obtidos, sendo recomendado para sistemas silvipastoris, nessa região do Estado do Mato Grosso do Sul, o plantio entre 180 e 324 plantas ha-1.

Palavras-chave: Sustentabilidade. Cerrado. Arranjos Populacionais. ILPF.

Abstract
In this experiment we aimed to evaluate the performance of Eucalyptus urograndis clone H13 (Eucalyptus urophylla x Eucalyptus grandis) after 12 years of planting, in different planting densities in Cerrado pasture areas in Mato Grosso do Sul State (Brazil). The selected population arrangements were for systems of livestock and forest integration, for multiple use of wood, such as: sawn wood, timber, lamination, poles. The trees were implanted in a Nelder competition wheel and, due to the experimental design, the population arrangements would allow evaluate, in experimental area, densities between 180 and 1,332 plants ha-1. However, considering that the focus of this work was the livestock and forest integration system (silvopastoral systems), a dendrological analysis was carried out in densities between 180 and 584 plants ha-1 (diameter at breast height (DBH, cm) and height of the plants, in m) and the volume of wood (m³) per tree and per hectare was calculated. It can be concluded that for the variables height, diameter at breast height and production of sawn wood, the spatial density directly influenced the results obtained, being recommended for silvopastoral systems, in this region of the State of Mato Grosso do Sul (Brazil), planting between 180 and 324 plants ha-1.

Keywords: Sustainability. Cerrado. Population Arrangements. ICLF.
Karakteristik Kimiawi Kompos Enceng Gondok dan Jerami Hasil Dekomposisi Dengan Aktivator Alami dan Buatan
Authors: Triwahyuningsih Nike 
Published: May 2021

A research to study the chemical properties of hyacinth- and straw-compost decomposed by natural and artificial activators was conducted at the Research Field of Faculty of Agriculture, Muhammadiyah University of Yogyakarta. Cow manure was used as natural activator, while Stardec (powdered) and EM4 (liquid) as artificial ones. The treatment was arranged in 2x3 factorial completely randomized design. The hyacinth and straw organic sources were decomposed by cow manure, Stardec and EM4 activators. Organic matters were incubated for 5-6 weeks then pH, C-organic, N-total, available P and K, CEC, and the .exchngeable Ca, K and Mg were measured. The results showed that the hyacinth-compost had the better maturity according to the C/N ratio (C/N20) than the straw-compost (C/N20), but the two kinds of compost had the moderate mature rate of humic substances. The straw-compost had better quality though as shown in its higher available phosphorus and excheangable potassium, especially when decomposed by EM4 artificial activator. Application of artificial activators Stardec and EM4 enhanced the maturity rate of hyacinth-compost.
The Idea of Universitas Studiorum in View of the Principle Guidelines of the Act 2.0. Some Reflections on the Mission of the Contemporary University
Authors: Smoleń Paweł , Świstak Marzena 
Published: May 2021

Idea universitas studiorum w świetle głównych założeń ustawy 2.0. Kilka refleksji o misji współczesnego uniwersytetu
Wspólnota nauczanych i nauczających stanowi podstawową przesłankę wzorca idealnej uczelni wyższej. Powszechnie przyjmuje się, że to w epoce średniowiecza stworzono uniwersytet, chociaż pierwotne oznaki akademickości pojawiały się już w starożytnej Grecji. Od początków istnienia uniwersytetów w Europie bliskie im były takie wartości, jak: prawda, autonomia, pluralizm, wolność, powszechność, które przenikały się wzajemnie w głównym nurcie procesu dążenia do prawdy. Funkcjonowanie starożytnych form działalności naukowej i kształcenia oraz powstanie pierwszych średniowiecznych uniwersytetów europejskich nieodzownie łączy się z kształtowaniem idei uniwersytetu. Proces ten nie był, i także współcześnie nie jest w swym przebiegu jednorodny. Na tym tle starano się dokonać weryfikacji i oceny głównych założeń ostatniej reformy szkolnictwa wyższego w Polsce (tzw. ustawy 2.0). Analiza obejmuje przede wszystkim przyjęte cele reformy, sposób określenia misji uniwersytetu oraz poprawność procesu legislacyjnego. Całość rozważań dokonywana jest w perspektywie średniowiecznej idei universitas studiorum. Bez wątpienia bowiem wypracowane w epoce średniowiecza typy uniwersytetów są do dziś uznawane za modele wzorcowe.