bluuebunny/crossref_metadata_2025_split huggingface dataset:
Entwicklung der selbstberichteten Gesundheit über die Sekundarstufe: Ergebnisse des Nationalen Bildungspanels
Authors: Herke Max , Rathmann Katharina , Richter Matthias 
Published: November 2019

Zusammenfassung
Ziel der Studie Die selbstberichtete Gesundheit ist ein wichtiger Indikator für die aktuelle und zukünftige Gesundheit, doch fehlen auf Paneldaten basierende Befunde, die nach Hintergrundmerkmalen differenzierte Entwicklungen selbstberichteter Gesundheit Jugendlicher betrachten. Diese Arbeit untersucht die Entwicklung der selbstberichteten Gesundheit über die Sekundarstufe von der 5. bis 12. Klasse in Deutschland, und analysiert Unterschiede nach Indikatoren der sozio-ökonomischen Position und weiteren Hintergrundmerkmalen wie Geschlecht und Familienstruktur.
Methodik Daten der 5. bis 10. Klasse aus der Kohorte „Klasse 5“ sowie Daten der 9. bis 12. Klasse aus der Kohorte „Klasse 9“ des Nationalen Bildungspanels werden kombiniert. Wachstumskurvenmodelle auf Basis der Mehrebenenanalyse wurden verwendet, um das Niveau und den Verlauf der subjektiven Gesundheit zu untersuchen sowie Unterschiede nach Schultyp, Bildung der Eltern, Haushaltseinkommen, Geschlecht und Familienstruktur zu untersuchen. Das finale Modell enthält 28 987 Beobachtungen von 11 290 Individuen, verteilt auf 8 Messzeitpunkte.
Ergebnisse Die selbstberichtete Gesundheit nimmt von der 5. bis zur 12. Klasse leicht ab. Heranwachsende, die ein Gymnasium besuchen, in Haushalten mit höherem Einkommen oder bei Eltern mit höherem Bildungsstatus leben, berichten über eine bessere Gesundheit. Jungen sowie Heranwachsende, die in Kernfamilien aufwachsen, zeigen einen günstigeren Verlauf der selbstberichteten Gesundheit über die Sekundarstufe.
Schlussfolgerung Diese Studie bietet einen umfassenden Überblick über Veränderung/Verläufe der selbstberichteten Gesundheit von Jugendlichen in der Sekundarstufe. Neben den statischen Unterschieden nach Hintergrundmerkmalen haben zusätzlich Mädchen und Jugendliche die nicht in Kernfamilien leben auch eine schlechtere Prognose für die Entwicklung ihrer selbstberichteten Gesundheit über die Schullaufbahn.
Extreme Neonatal Hypernatremia and Acute Kidney Injury Associated with Failure of Lactation
Authors: Tomarelli Gianfranco , Arriagada Daniela , Donoso Alejandro , Diaz Franco 
Published: November 2019

AbstractHypoalimentation is an important cause of hypernatremic dehydration in neonates; however, extreme values of plasma sodium make it necessary to investigate the differential diagnosis. We report the case of a 20-day-old newborn who was admitted with severe hypernatremic dehydration, with plasma sodium of 213 mEq/L and oliguric acute renal failure. The patient was treated with intravenous fluids for correction of dehydration and peritoneal dialysis for adequate sodium correction. During the etiological study, a 10-fold increase in the concentration of sodium in breast milk was detected. Peritoneal dialysis was an effective therapy in the management of the extreme hypernatremia with sodium correction within the recommended rate. At the 1-year follow-up appointment, the child had normal renal function, normal for age psychomotor development, and neurological physical was unremarkable. In conclusion, we report a case of an unusual extreme hypernatremia with discussion of the underlying pathophysiology and, more importantly, the effective treatment with a mixed approach with intravenous fluids and peritoneal dialysis.
β2* nAChRs on VTA dopamine and GABA neurons separately mediate nicotine aversion and reward
Authors: Grieder Taryn E. , Besson Morgane , Maal-Bared Geith , Pons Stéphanie , Maskos Uwe , van der Kooy Derek 
Published: November 2019

Significance
Nicotine addiction that results from long-term smoking is a worldwide health epidemic. Here we show that nicotinic receptors containing specific subunits, located in the brain reward system, mediate the experience of both the acute rewarding and aversive effects of nicotine, depending on which neurons they are located. These results provide contradictory evidence to the popularly held belief that the brain dopaminergic system exclusively mediates the rewarding effects of abused drugs, instead providing evidence that the aversive motivational effects of nicotine are signaled through this system as well. Our results lead to a better understanding of the neurobiological substrates of nicotine reward and aversion and thus may lead to new possible targets for pharmacotherapeutic treatments of tobacco addiction.
BBX4, a phyB-interacting and modulated regulator, directly interacts with PIF3 to fine tune red light-mediated photomorphogenesis
Authors: Heng Yueqin , Jiang Yan , Zhao Xianhai , Zhou Hua , Wang Xuncheng , Deng Xing Wang , Xu Dongqing 
Published: November 2019

Significance
Phytochrome B (phyB) is the predominant red light photoreceptor that transduces red light signals to downstream signaling. On red light exposure, photoactivated phyB interacts with a transcription factor termed PHYTOCHROME INTERACTING FACTOR 3 (PIF3), a repressor of red light signaling, triggering its rapid phosphorylation and subsequent degradation. Thus, phyB-PIF3 defines a critical regulatory hub for red light-mediated seedling development. In this study, we show that B-BOX CONTAINING PROTEIN 4 (BBX4) is a key component involved in the phyB-PIF3 regulatory module. phyB directly interacts with BBX4 and positively controls the abundance of BBX4 in red light. Accumulated BBX4 directly interacts with PIF3 to inhibit its transcriptional activation activity toward target genes, thereby promoting photomorphogenesis.
Green areas as an element of sustainable development in urban settlements
Authors: Potapova E V , Sokolova O E , Barkhatova O A 
Published: November 2019

Abstract
The authors propose a number of indicators of green areas and objects of gardening as proxies for sustainable development: closeness of crowns, soil sodification, a protective cover of herbaceous plants, and a one-time recreational load. The article provides a brief explanation on the inability to use some classical indicators, such as species diversity, biomass, etc. on the territories of some settlements.
Accounting for the fertility of land resources as a factor in the sustainable development of the Kursk region
Authors: Bobovnikova T , Vorozheykina T 
Published: November 2019

Abstract
The article deals with the problems of accounting for the fertility of land resources. The analysis shows that the most fertile soils (black soils) are under the threat of degradation. In the Kursk region, a negative balance of nutrient removal is observed annually. Growth in crop production is due to a decrease in soil fertility, as a result of an irrational farming system. Therefore, technologies that contribute to the preservation and improvement of land fertility should be used for the effective use of land resources in the Kursk region. The results of our study confirm the need to make adjustments to the current system of organization of agricultural production by improving the accounting system.
Analysis of the world lettuce market
Authors: Shatilov M V , Razin A F , Ivanova M I 
Published: November 2019

Abstract
The article presents an analysis of the lettuce market (Lactucasativa L.) as one of the most economically important leafy vegetable crops in the world and the Russian Federation. In human nutrition, the value of lettuce is determined by those properties that are recognized as health-improving due to the high content of vitamin C, polyphenols, and fiber. The paper roves the effect of lettuce in the prevention of cardiovascular disease. It also shows the production performance of world lettuce production, including information about countries that have a significant share in global production. The authors consider the interstate exchange of lettuce products, indicating the volume of exports and imports in value and volume terms. The leading countries with the maximum indicators of import and export in value terms are identified, and the maximum and minimum prices of purchase and sale among them for the period under review are indicated. Separately, imports and exports of lettuce in the Eurasian Economic Union are analyzed, indicating the States to which the countries of the Union export, as well as the share of each member country in exports and imports. A detailed analysis of Russia’s imports and exports, with allocation of the Federal districts having the greatest share, is carried out, and also the main directions with indication of the region of the country are discusses.
Effect of superabsorbing polymers on potato yield
Authors: Starovoitova O A , Manokhina A A , Pekhal’skij M I 
Published: November 2019

AbstractClimate change is leading to an increase in drought, which is the largest abiotic stress factor leading to a decrease in crop yields. One of the methods in solving this problem is the use of superabsorbing polymers (SAPs) (China, USA, Canada, India, Italy, Iran, Poland, Turkey, and others). The aim of the research is to study the effect of using the superabsorbing polymers (cross-linked copolymer of potassium and ammonium salts of acrylic acid in the form of loose white granules) on the background of fractional-local application of mineral fertilizer to the crop formation. Field experience, accounting and observations were carried out in accordance with general requirements were used in our research. The studies were carried out in 2015-2017 on sod-podzolic sandy soil in the Lyubertsy district (Moscow region, Russia). When using superabsorbing polymers in an average of three years, the yield increased by 1.6…3.4 t/ha (5.5…Of 10.0%) for the studied cultivars; especially helpful was an early sortMeteorand a medium early varietyIrbitskiy. It is possible to recommend the use of superabsorbing polymers at a dose of 200 kg/ha when growing potatoes in conditions of moisture deficiency.
Vertical vegetable growing: creating tomato varieties for multi-tiered hydroponic installations
Authors: Balashova I , Sirota S , Pinchuk Ye 
Published: November 2019

Abstract
The relevance of vertical vegetable growing is due to the need to ensure an uninterrupted supply of food and reduce the cost of food production in terms of moving the majority of the population of the Earth into urban space. The market of vertical vegetable growing can be characterized as capacious and fast-growing. In the Russian Federation, this market is still developing. The main vegetable crops are not represented in it. The purpose of the study was to create tomato varieties for the vertical vegetable growing (multi-tiered hydroponic plants). For this purpose, a new approach to the breeding process was necessary, in which the variety would be considered as an element of the technological chain. A collection of 692 tomato samples served as our research material. Research methods included the following: creating a model of a new form of tomato for multi-tiered hydroponic structures; analyzing the genetic basis of the characteristic “short stature” in Solanum lycopersicum L.; conducting an individual selection from sporophyte variety populations; testing selected samples in a multi-tiered narrow-rack hydroponics installation; selecting the most large-fruited and productive samples; transferring new varieties to the State Variety Testing (GSI), and analyzing the economic efficiency of cultivating new varieties on multi-tiered hydroponic installation. As a result, in the Federal Scientific Center for Vegetable Growing, the first varieties of tomato vertical vegetables such as “Natasha” (Patent of the Russian Federation No. 9060) and “Timosha” (Patent of the Russian Federation No. 9059) were obtained. Our analysis of the economic efficiency of tomato cultivation on multi-tiered narrow-rack hydroponics demonstrated the convincing advantages of such a method of tomato cultivation as compared to the traditional cultivation method.
Development of the region’s pig production market based on the cluster approach
Authors: Mamaeva A , Vinokurov G 
Published: November 2019

Abstract
The pork production market is part of the food market, and increasing its competitiveness is a priority both in managing the agro-industrial complex in general and in the region in particular. Cluster interaction in the regional market of pig production is an important direction of its development, ensuring a full exchange of goods of appropriate quality between producers and consumers of pork production. In the proposed study, based on the analysis of statistical information, as well as surveys of consumers of pig production in the Irkutsk region (conducted in 2016), recommendations aimed at developing a regional production base for pig breeding were proposed. The development of a regional production base is proposed by expanding the existing industries, as well as by improving the breeding base of pig production in the region, creating a new model of cluster interaction between producers and consumers in the market under study. The formation of a regional pig cluster will increase the production of pork, open new channels for the sale of manufactured products, as well as start exporting to other regions.
Indicators of the “green economy” as a tool for monitoring the regional economy
Authors: Adarina R , Gazukina Yu , Yankovskaya K 
Published: November 2019

Abstract
The paper draws attention to the need to measure a level of “green economy” for monitoring, which is part of the state regulation of the regional economy. The authors note the difficulties and problems in the formation of indicators, indices used for assessing a level of the “green economy” development. The paper proposes an approach for calculating the integral indicator, which can become an indicator of the regional economy, taking into account the contribution of economic, social, and environmental factors to achieving sustainable development.
Prospects for the socio-economic development of rural areas of the Altai territory
Authors: Vorobyova V , Vorobyov S , Sorokina A. 
Published: November 2019

Abstract
The paper substantiates the need for differentiation of regional policy measures regarding the directions of development of rural areas of different specialization. On the example of rural areas of the Altai region, the paper discusses the key issues of agricultural specialization, the main development directions of agriculture, social, and market infrastructure.
The impact of modernization on the formation of the poultry meat market in the Russian Federation
Authors: Barcho M Kh 
Published: November 2019

Abstract
Food production and meeting the needs of the population in high-quality food products are among the most important practical tasks of state importance. A significant contribution to the development of domestic agriculture makes poultry. For a short period of time (2001-2018), there was an increase in poultry meat production by 5.5 times and eggs by 27% in Russia. The main factor in increasing production in the poultry industry was the implementation of innovative processes and integrated technical and technological modernization. In order to maintain the momentum and continue the progressive development of poultry production, it is necessary to ensure that its competitiveness is increased, taking into account the existing and forecasted future challenges. In order to determine the impact of modernization processes on the formation of the poultry meat market, the article analyzed the dynamics of the number of new, modernized and reconstructed poultry facilities and estimated the volume of increase in poultry production for slaughter at these enterprises. The proposed measures of state support in terms of modernization of the industry, the implementation of which, in the author’s opinion, would contribute to the achievement of full provision of the domestic market for poultry products and the transformation of the sub-sector into an export-oriented business.
Effect of Micro SiC Addition on the Microstructure and Thermal Shock Resistance of 3D Printed Mullite Contained Ceramics
Authors: Man Yiran , Peng Zijun , Luo Xudong , Xie Zhipeng , Qu Dianli , Hu Xitong 
Published: November 2019

Abstract
Currently, mullite contained ceramics printed by DIW 3D printing cannot be used in a high temperature environment for multicycle. In the fields of environmental protection and filtration of high-temperature flue gas, 3D printed mullite contained ceramics is in widely demanded owing to the variety of structures. Thus, application of these products have been limited due to their low thermal shock resistance. In order to improve the thermal shock resistance of 3D printed mullite contained ceramics for high-temperature flue gas filter, in this work, the effect of SiC micron particles addition on the thermal shock resistance was investigated. The thermal shock behavior of 3D printed mullite ceramics was explored using a conventional water quenching technique. Furthermore, XRD and SEM were used for determining phase composition and microstructure evaluation, respectively.
Bending Strength of 3D-Printed Zirconia Ceramic Cellular Structures
Authors: Zhao Weiming , Wang Cao , Zhao Zhe 
Published: November 2019

Abstract
Cellular structure has been applied in lightweight engineering application because of its high specific strength, high modulus and low relative density. Here we used 3Y-TZP ceramic to realize two typical cellular structures, Kelvin and Octet-truss, through a novel digital light processing (DLP) 3D printing method. The strut size was changed systematically to generate structures with porosities in the range of 10% ∼ 80% and the bending strength of these structures were investigated and analyzed by three-point bending test.
Additive Manufacturing of Ceramic Products Based on Millimeter-Wave Heating
Authors: Egorov SV , Eremeev AG , Kholoptsev VV , Plotnikov IV , Rybakov KI , Sorokin AA , Bykov Yu V 
Published: November 2019

AbstractAdditive manufacturing of ceramic articles making use of concentrated energy flows attracts the research interest worldwide. While the application of laser beams faces serious problems associated with high temperature of sintering and low thermal conductivity of ceramics, layer-by-layer sintering by focused millimeter-wave radiation appears to be a promising method of additive manufacturing. This paper describes the studies of fast millimeter-wave sintering of yttria-stabilized zirconia and hydroxyapatite ceramics. Coefficients of the millimeter-wave absorption have been determined in broad frequency and temperature ranges. Rapid sintering of compacted ceramics samples was accomplished using volumetric microwave heating in a work chamber of a 24 GHz / 5 kW gyrotron system. In addition, using a 263 GHz / 1 kW cwgyrotron millimeter-wave source and a purposely designed electrodynamic focusing structure, radiation intensities of up to 20 kW/cm2could be achieved, which was sufficient for fast localized heating of ceramic layers to the solidification temperature. The results of a study of the microstructure and mechanical properties of the sintered ceramics are presented.
Design and Verification of Hot Pressing Die for Ceramic Matrix Composite Preform
Authors: Yu Jiang Zhuo , Hua Yang Jin , Lin Zhao Chun , Gao Ye , Xu Lv Xiao , Qi Zhe , Jiao Jian 
Published: November 2019

Abstract
Finite element analysis method, combined with experiments, has been employed to optimize the structure of die, which would be used to fabricate the ceramic matrix composite (CMC) preform. The contact property between bodies in dies (i.e., structure I and II designed in this paper) and analysis step were firstly defined based on the characteristics of force and heat transfer in the die. Hereafter, the stress distributions in dies and stress, pressure and temperature distributions in preforms were achieved, respectively. The outcomes demonstrate that the pressure transmission of the structure II was more efficient than that of the structure I, resulting in more even pressure on the preforms. Thus, the die II (i.e., the structure II) was utilized to fabricate the ceramic matrix composite preform. In addition, the performance of the preform II fabricated by the die II was detected through X-ray computed tomography, which indicates that the preform II has a compact and uniform internal structure. Therefore, the finite element analysis method should be regarded as a potential option for design and optimization of die.
Preparation and Characterization of Nanoporous Alumina as Ceramic Membrane Materials
Authors: Li Zongyuan , Pan Wei 
Published: November 2019

Abstract
To meet growing electricity demand and greenhouse gas emission limitation in the future, it is urgency to improve existing power plant more efficientand less CO2 emission. Oxygen combustion instead of air combustion is quite good to raise up the fossil fuels efficiency. And separation oxygen from the air by ionic conductance at high temperatures is promising in large fuel power plants. Ionic separation processes by ceramic dense membrane need a good support porous membranes with good mechanical and permeable property. Present research reports the porous alumina with nanoporous structure was prepared by vacuum filtration and rapid sintering as a kind of porous support layer in the oxygen ceramic separation membrane. The microstructure of nanoporous alumina was analysed, the mechanical properties and gas permeability were tested and compared with some conventional pore-former method made porous ceramics. The uniform nanopores alumina ceramics with both high strength and high permeability achieved by a vacuum filtrate and rapid sintering method is a candidate as the porous support application in fuel cell and gas separation field.
Sintering Behavior of Si3N4 Ceramics at Low Temperature in Air Atmosphere Furnace
Authors: Zhao Shixian , Wang Zhanmin , Li Lingfeng , Guo Ang , Wang Gang , Li Hongxia 
Published: November 2019

Abstract
Si3N4 ceramics have been densified in air atmosphere furnace at low temperatures of 1600∼1650°C with Li2O-Al2O3sintering additives. Molar ratio of 0.4∼1.6:1 of Li2O and Al2O3 were used to study the effects of additives on sintering behavior of Si3N4 materials. It is found that the densities of sintered samples increased and then decreased with the increase of molar ratio accordingly. Highest densities in excess of 95%oftheoretical are obtained with the ratio of 0.7:1. Densification process is accompanied by phase transformation. Therefore, the primarily phases in sintered specimens areβ-Si3N4and α-Si3N4, with a small amount of Si2N2O existed because of minor oxidation of the specimens during sintering. However, relatively low α- to βSi3N4 transformation (∼63%β-Si3N4) took place in the present densification conditions. The microstructures of the sintered samples exhibited typical β-Si3N4 elongated grain morphologies with small amount of homogeneously distributed residual pores. The sintered Si3N4 materials have the hardness of 14GPa and fracture toughness of 5.08MPa·m1/2, indicating a potential method for low-cost processing of Si3N4-basedceramics.