bluuebunny/crossref_metadata_2025_split huggingface dataset:
Detoxification of oil-contaminated soils by using humic acids
Authors: Savelyeva A V , Linkevich E V , Yudina N V , Nebogina N A 
Published: August 2019

Abstract
The paper deals with the study of the effect of peat mechanoactivation on the structure and biostimulating and detoxifying properties of isolated humic acids (HA) in of oil-contaminated soil. It is shown that the mechanical activation of peat leads to an increase in the HA yield by a factor of 2-3. In this case, the changes in the fragment composition of HA are observed. Hence, the percentage of aromatic and oxidized alkyl fragments increases, while the amount of oxygen-containing functional groups decreases. The binding of petroleum organic compounds occurs due to the presence of an aromatic skeleton in the structure of HA. The increase in the proportion of aromatic fragments in the structure of mechanically activated HAs increases their affinity for hydrophobic oil compounds, thereby providing them a detoxifying ability. The maximum detoxifying ability of mechanically activated HA determines their biostimulating properties in the wheat seed germination experiment. The biostimulating effect from the use of mechanically activated HA samples is manifested itself to a greater degree in the increase in the height of the sprout stem and the dry mass of the aerial part of the plant. The processes of biodegradation of oil in the soil in the presence of HA are investigated. It is shown that the amount of bitumoids extracted from the soil in the presence of HA is reduced by 30%. The content of hydrocarbons in bitumoids decreases by 50% due to the biodegradation of low molecular weight alkanes. At the same time, the degree of branching of hydrocarbon chains increases, which suggests a microbiological activity. An increase in alcohol-benzene resins in the composition of bitumoids indicates the stimulation of hydrocarbon-oxidizing bacteria by humic acids. According to the data of IR spectroscopy, the content of paraffin hydrocarbons has decreased during the destruction of oil by soil microflora.
Technology and Manufacture of Reinforced Concrete Structures with Application of Silica Fume for Multi-storey House-building in the Republic of Khakassia
Authors: Nagruzova L P , Shibaeva G N , Saznov K V , Kubanychbek kyzy A 
Published: August 2019

Abstract
Silica fume is a processing waste of ferroalloy factories. The application of silica fume instead of cement allows producing high strength concrete, as well as concrete types of the middle and low classes providing a saving in cement of up to 50 %. The authors have developed a technology for preparing a concrete mixture for reinforced concrete structures with silica fume. The technology is simple and does not require additional expensive equipment having low power intensity. The technological parameters have been investigated. They are related to slump, maturing conditions during steam curing and monolithic casting. The economic efficiency of applying concrete mixtures containing silica fume has been determined.
Application of sea sand for 3D concrete printing
Authors: Sharanova A V , Tovpinets A O , Dmitrieva M A 
Published: August 2019

Abstract
The paper shows the promising use of sea sand for additive technologies in construction. The use of sea sand reduces the setting time of the concrete mix and increases the initial strength compared to conventional quarry construction sand. A comparative analysis of the characteristics of sea and quarry sands was performed. It has been experimentally proven that the use of sea sand instead of quarry sand in fine-grained concrete mix leads to a decrease in the setting time of the fresh mix and an increase in the strength of concrete samples. The flexural strength and compressive strength of samples containing sea sand at the age of 28 days increases by 35.7% and 16.7%, respectively, comparing to samples containing quarry sand.
In-situ curing mechanism of Portland cement
Authors: Abzaev Yu A , Gnyrya A I , Korobkov S V , Dudov D O , Mihailov D A 
Published: August 2019

Abstract
The paper presents the results of predictive modelling of the mechanism of Portland cement curing using the VCCTL tool. The curing is studied at the water-cement (W/C) ratio of 0.30 and 0.35, during 28 days at room temperature. It is shown that the hydration degree correlates with the heat generation and the accumulation rate of hydration products. At W/C=0.30, the content of clinker phases and hydration products is higher than at W/C=0.35, but the rate of the indicated processes is almost similar. The growth in the water-cement ratio reduces the pore space filled with free moisture as well as the moduli of rupture. The correlation is detected between the Portland cement strength and Young’s modulus in the form of quadratic and cubic polynomials. These dependencies are in good agreement with the literature data and testify to the suitability of the VCCTL microstructural model of Portland cement curing.
Effect of gold and nickel co-additives on gas-sensitive characteristics of SnO2 thin-film on exposure to hydrogen and nitrogen dioxide
Authors: Almaev A V , Yakovlev N N , Chernikov E V 
Published: August 2019

Abstract
The results of investigation of the gas-sensitive properties of sensors based on the tin dioxide thin films with combined additives of gold and nickel obtained by the DC - magnetron sputtering are presented. The investigated sensors are characterized by a high response to low concentrations of NO2 of 0.45 – 10.23 ppm at temperatures of 50 – 150 °C with response time of 10 s. The sensitivity of sensors to hydrogen appears at the temperature of 250 °C. The hydrogen sensors are characterized by high reproducibility of the measurement results. The obtained results are explained by the synergistic effect of gold and nickel additives, as well as the ability of the Ni to prevent the interaction of hydrogen with lattice oxygen atoms in the subsurface part of tin dioxide.
Influence of V–Cr–W–Zr alloy microstructure on features of oxidation during chemical-heat treatment
Authors: Smirnov I V , Grinyaev K V , Ditenberg I A 
Published: August 2019

Abstract
Investigation results of microstructure influence on oxidation coefficient during chemical-heat treatment of V–Cr–W–Zr alloy are presented. It is shown that the formation of a high defect structural state in the alloy leads to a twofold increase in the oxidation coefficient and a significant increase in the oxygen concentration. The maximum effects of the microstructure on the oxidation processes are detected at short treatment times.
Determination of the properties and loading efficiency of encapsulated BSA-FITC and dexamethasone for drug delivery systems
Authors: Chudinova E , Surmeneva M , Koptyug A , Sokolova V , Prymak O , Bouckercha S , Epple M , Surmenev R 
Published: August 2019

AbstractIn this work porous microparticles of calcium carbonate were synthesized with bovine serum albumin - fluorescein isothiocyanate conjugate (BSA-FITC) and dexamethasone, and then used for encapsulation in polymer microcapsules by means of layer-by-layer assembly (LbL). The properties of the obtained microcapsules were characterized by scanning electron microscopy, dynamic light scattering, infrared-, ultraviolet- and visible spectroscopy. According to the performed DLS measurements, an average hydrodynamic diameter ranged from 4 to 8 µm and zeta-potential for all types of capsules was determined as -18 and -21 mV. BSA-FITC was encapsulated using this approach yielded a loading efficiency of 49 % protein. This value calculated for dexamethasone was of 38%. The microcapsules filled with an encapsulated drug may find applications in the field of biotechnology, biochemistry, and medicine.
Influence of phase composition on Portevin-Le Chatelier effect in Al-Mg alloys
Authors: Borisova Yu , Yuzbekova D , Mogucheva A 
Published: August 2019

Abstract
The temperature-strain rate domain of the Portevin-Le Chatelier (PLC) effect has been determined for three ultrafine grained aluminum alloys: Al-3Mg (A1), Al-4,57Mg-0,35Mn-0,2Sc-0,09Zr (A2) and Al-5,4Mg-0,52Mn-0,1Zr (A3) (wt.%). The apparent activation energy of the serrated yielding was estimated. It was found that the presence of dispersed particles leads to a decrease in the activation energy and the temperature–strain rate domain of the PLC effect becomes narrower.
Polylactic acid films implantation into the anterior chamber of eye in vivo
Authors: Filippova E O , Ivanova N M , Pichugin V F , Sun Z 
Published: August 2019

Abstract
The purpose of this research is the study of the influence of thin polylactic acid films implantation on the corneal morphology in vivo experiment. Studies were performed on 8 pubescent female Sylvilagus bachmani rabbits. Polylactic acid films were implanted into the anterior chamber of one animal eye. The feedstock for the films was obtained by dissolving polylactic acid in the chloroform. Before the implantation PLA films were sterilized. The overall duration of the in vivo experiment comprised 21 days. Such methods as visual check, photographic registration, non-contact ocular tonometry and optical coherent tomography of cornea were also used in course of the experiment. Sampling was performed on day 21 after the start of the experiment for morphology studying. Results showed that the implantation of the PLA films into the anterior chamber of eye does not induce an inflammatory reaction and does not increase an intraocular pressure. The study showed the possibility of PLA films using as a corneal implant.
Modeling threats to information security using IDEF0 methodology
Authors: Khristolyubova A A , Konev A A , Shelupanov A A , Solovev M L 
Published: August 2019

Abstract
The paper describes the implementation of a method for modeling threats to information security using the methodology of IDEF0 functional modeling to solve problems of formalization of specific threat models. The formulation of the method for modeling threats to information security accounts for various media of information transmission and its carriers. In addition, a process approach to information handling is used.
Exact solutions of initial boundary value problems for Sobolev type equations of elastic oscillations
Authors: Orlov S S , Shemetova V V , Sokolova G K 
Published: August 2019

Abstract
The article is devoted to the problem of the unique solvability of initial boundary value problems for partial differential equations. These initial boundary value problems are dissipative dynamic mathematical models from the field of linear elasticity. The considered equations are not resolved with respect to the highest time derivative. Therefore, these equations are referred to the so-called Sobolev type partial differential equations. The research of initial boundary value problems is carried out from general position in the form of the complete second order differential equation in abstract spaces. The theory of the distributions with values in Banach spaces and the concept of a fundamental solution of differential operator are used. Theorems of existence and uniqueness of the solutions of considered initial boundary value problems in the class of functions of finite smoothness with respect to time are proved. These solutions are obtained as an functional series of the Kummer confluent hypergeometric function.
Immunogenicity of High Dose Influenza Vaccine for Patients with Inflammatory Bowel Disease on Anti-TNF Monotherapy: A Randomized Clinical Trial
Authors: Caldera Freddy , Hillman Luke , Saha Sumona , Wald Arnold , Grimes Ian , Zhang Youqi , Sharpe Abigail R , Reichelderfer Mark , Hayney Mary S 
Published: August 2019

AbstractBackgroundPatients with inflammatory bowel disease (IBD) on anti-tumor necrosis factor alpha (TNF) agents may have lower immune response to the influenza vaccine. We aimed to evaluate the immunogenicity of the high dose (HD) vs standard dose (SD) influenza vaccine in patients with IBD on anti-TNF monotherapy.MethodsWe performed a randomized clinical trial at a single academic center evaluating the immunogenicity of the HD vs SD influenza vaccine in patients with IBD on anti-TNF monotherapy. Influenza antibody concentration was measured at immunization, at 2 to 4 weeks postimmunization, and at 6 months.ResultsSixty-nine patients with IBD were recruited into the study, 40 on anti-TNF monotherapy, and 19 on vedolizumab, along with 20 healthy controls (HC). Patients with IBD receiving the HD influenza vaccine had significantly higher H3N2 postimmunization antibodies compared with those who received the SD influenza vaccine (160 [interquartile range 80 to 320] vs 80 [interquartile range 40 to 160]; P = 0.003). The H1N1 postimmunization levels were not significantly higher in the HD influenza vaccine (320 [interquartile range 150 to 320] vs 160 [interquartile range 80 to 320]; P = 0.18). Patients with IBD receiving the HD influenza vaccine and those on vedolizumab who received SD had equivalent antibody concentrations to HC (H1N1 P = 0.85; H3N2 P = 0.23; B/Victoria P = 0.20 and H1N1 P = 0.46; H3N2 P = 0.21; B/Victoria P = 1.00, respectively).ConclusionsPatients with IBD on anti-TNF monotherapy receiving the HD influenza vaccine had significantly higher postimmunization antibody levels compared with SD vaccine. Clinicaltrials.gov (#NCT02461758).
King tuna: Indian Ocean trade, offshore fishing, and coral reef resilience in the Maldives archipelago
Authors: Yadav Shreya , Abdulla Ameer , Bertz Ned , Mawyer Alexander 
Published: August 2019

AbstractThe traditional offshore pole-and-line tuna fishery of the Maldives has historically promoted low levels of reef fishing in this archipelago. While the tuna fishery is old and extensive—some evidence suggests it has been in place for over a thousand years—the reasons for its development have not been closely examined. Why did an offshore fishery develop in such small and isolated islands with abundant and easily accessible nearshore reefs? Why is tuna considered the “king of fish” in the Maldives, in contrast to many other islands across the globe where reef fish are prized for a wide variety of cultural and social reasons, often deeply rooted in community histories? In this article, we use a historical approach to uncover some of the drivers of this fishery, and the long-term consequences it has had for the resilience of this island chain. We trace the written accounts of travellers, voyagers, and traders, in addition to more recent research to gain an understanding of how early Indian Ocean trade networks may have shaped the development of this fishery over time. We propose that the early growth of the tuna fishery was likely tied to the trade in money cowries (Monetaria moneta), of which the Maldives was a major global supplier. A regional demand and market for dried tuna from the fourteenth century onwards contributed to the income of Maldivians and promoted and supported reef health by encouraging relatively low levels of reef fishing. However, the emergence and substantial growth of the Maldivian tourist industry in the past few decades are resulting in a shift in local consumption preferences and increased exploitation of reef fisheries. Exploring this history is important, not only to help contextualize the modern governance of the offshore tuna fishery, but also for a more nuanced understanding of the social, cultural, and ecological dynamics that have shaped Maldivian coral reefs in the past with implications for those that will do so in the future.
Riding the Shi: From Infection Barriers to the Microbial City
Authors: Voelkner Nadine 
Published: August 2019

AbstractHow can a microbial approach to global health security protect life? Contemporary infection control mechanisms set the human and the pathogenic microbe against each other, as the victim versus the menace. This biomedical polarization persistently runs through the contemporary dominant mode of thinking about public health and infectious disease governance. Taking its cue from the currently accepted germ theory of disease, such mechanisms render a global city like Hong Kong not only pervasively “on alert” and under threat of unpredictable and pathogenic viruses and other microbes, it also gives rise to a hygiene and antimicrobial politics that is never entirely able to control pathogenic circulation. The article draws on recent advances in medical microbiology, which depart from germ theory, to invoke an ecological understanding of the human-microbe relation. Here, while a small number of viruses are pathogenic, the majority are benign; some are even essential to human life. Disease is not just the outcome of a pathogenic microbe infecting a human host but emerges from socioeconomic relations, which exacerbate human-animal-microbial interactions. In a final step, the article draws on Daoist thought to reflect on the ways that such a microbial understanding translates into life and city dwelling.
Challenges to I-125 Seed Localization of Metastatic Axillary Lymph Nodes Following Neoadjuvant Chemotherapy
Authors: Hyde Brenda , Geske Jennifer , Lee Christine 
Published: August 2019

Abstract

Objective
The objective of this retrospective study is to characterize challenges with ultrasound (US)-guided localization of clipped metastatic axillary lymph nodes after neoadjuvant chemotherapy.

Methods
After institutional review board approval, our radiology database was searched for all radioactive seed localizations (RSLs), which use a low-dose radioactive isotope, Iodine-125, performed for clipped axillary lymph nodes between January 1, 2016, and December 31, 2018. The details of each procedure were reviewed. RSL was defined to be successful if US-guidance was used, and postlocalization imaging showed the seed was no more than 1 cm away from the target. Cause and subsequent management of unsuccessful localizations were documented.

Results
During the study period, 139 clipped axillary lymph nodes (in 138 women and 1 man) were scheduled for preoperative RSL. The overall success rate of RSL was 106/139 (76%). The number of unsuccessful localizations was 10/37 (27%) in 2016, 7/39 (18%) in 2017, and 16/63 (25%) in 2018, with a total unsuccessful case frequency of 33/139 (24%) over the entire study period. The mean time interval between marker placement and localization was 6.0 months (range 0.4–18.1 months). The coil biopsy marker was the most frequently used marker.

Conclusions
Preoperative US-guided I-125 seed localization of clipped metastatic axillary lymph nodes is suboptimal or unsuccessful 24% of the time. Other options for non-US imaging-guided localizations, such as tomosynthesis, are available for consideration when US detection is unsuccessful.
JEEA-FBBVA LECTURE 2017: The Dynamics of Environmental Politics and Values
Authors: Besley Timothy , Persson Torsten 
Published: August 2019

AbstractThis paper develops a framework to study environmentalism as a cultural phenomenon, namely as reflecting a process of social identification with certain values. The model is used to explain how the shares of environmentalists and materialists in society can coevolve with taxes on emissions to protect society against damages caused by environmental degradation. These policies are determined by electoral competition. However, even though politicians internalize the welfare of those currently alive and pick utilitarian optimal policies, the dynamic equilibrium paths of policies and evolving values may not converge to the steady state with the highest level of long-run welfare.
An Autopsy Case of Preclinical/Early Clinical Pick Disease
Authors: Okada Keitaro , Hata Yukiko , Takayanagi Yoichiro , Takahashi Tsutomu , Takayanagi Isao , Nishida Naoki 
Published: August 2019

AbstractHere, we report a 74-year-old woman with a long history of schizophrenia but no clinical manifestation of dementia. Cause of death after autopsy was atherosclerotic heart disease. Although neuropathological investigation showed no significant brain atrophy, superficial microvacuolation with neuronal loss was restrictedly detected in the right anterior cingulate gyrus by microscopic examination. Pick bodies (PBs) positive for Bodian and Bielshowsky staining and 3-repeat-tau were detected in frontal and temporal lobes and limbic regions. Prevalence of PBs was most frequent in the right anterior cingulate gyrus and lateral base, followed by other neocortical regions of the frontal lobe, amygdala, and granular layer of the hippocampus. Although the number of glial inclusions was low, ramified astrocytes and various forms of astrocytes with AT8-positive inclusions were also found. Thus, the case may reflect preclinical or very early clinical Pick disease. Distribution of PBs does not necessarily have to be consistent with previously reported preclinical/early clinical Pick disease. These results show that tau pathology in the earlier stage of Pick disease may be heterogeneous, and the anterior cingulate gyrus may be initially affected in Pick disease. Neuropathological examination, including immunohistochemistry without case selection, is useful in identifying clinical and pathological manifestations of Pick disease.
The effect of heteroatoms in carbonaceous surfaces: computational analysis of H chemisorption on to a PANH and Si-doped PAH
Authors: Barrales-Martínez César , Gutiérrez-Oliva Soledad 
Published: August 2019

ABSTRACT
In this work, we studied the effect of a heteroatom (nitrogen and silicon) inside the main skeleton of the carbonaceous surface in the H chemisorption reaction. The process taking place on to an N-doped polycyclic aromatic hydrocarbon (PAH), known as PANHs, shows differences in the energetic parameters only when the process is carried out on to the N atom. When N is located in an external site of the surface, the process is barrierless, whereas if N is in an internal position of the surface the activation energy drastically increases. The aromaticity of these N-doped systems does not change much concerning pristine coronene. In a Si-doped PAHs, the chemisorption on to the Si atom takes place in the absence of activation energy, regardless the position of Si on the surface. Moreover, the adsorption on to their neighbour carbon atoms is carried out with lower activation energies than those found in the reaction on to pristine PAH, indicating that the presence of silicon atoms in the surface favours H chemisorption. This might be due to a loss of aromaticity on the surface. In both cases, the reactions become significantly more exoenergetic. Finally, the presence of heteroatoms favours kinetically the reaction, where the rate coefficient of H2 formation process, calculated considering all of the sites of every PAH studied in this work, reaches a close value to the reported for diffuse interstellar medium and photodissociation regions ($R_{_{\mathrm{ H}\mathrm{ }_2}} = 1 \times 10^{-17}$ cm3 s−1 at 40 K).