bluuebunny/crossref_metadata_2025_split huggingface dataset:
Plastic failure zone characteristics and stability control technology of roadway in the fault area under non-uniformly high geostress: A case study from Yuandian Coal Mine in Northern Anhui Province, China
Authors: Huang Yaoguang , Zhao Aining , Zhang Tianjun , Guo Weibin 
Published: July 2020

Abstract
In order to explore the effective support method for deep broken roadway, based on the in situ stress test results, the analytical and numerical solutions of the stress and the range of plastic failure zone (PFZ) in a circular roadway subjected to non-uniform loads were obtained using analytical and finite difference numerical methods based on the elastoplastic theory, respectively. Their comparison results show that the analytical and numerical methods are correct and reasonable. Furthermore, the high geostress causes the stress and range of PFZ in roadway roof and floor to increase sharply while those in roadway ribs decrease. Moreover, the greater the difference of horizontal geostress in different horizontal directions is, the larger the range of PFZ in roadway roof and floor is. The shape of PFZ in roadway varies with the ratio of horizontal lateral pressure coefficient in x-direction and y-direction. Finally, according to the distribution characteristics of PFZ and range of PFZ under the non-uniformly high geostress, this paper has proposed a combined support scheme, and refined and optimized supporting parameters. The field monitoring results prove that the roadway deformation and fracture have been effectively controlled. The research results of this paper can provide theoretical foundation as well as technical reference for the stability control of deep broken roadway under non-uniformly high geostress.
The furfuryl alcohol (FA) resin distribution in the furfurylated bamboo
Authors: Li Wanju , Liu Minghui , Wang Hankun , Zhai Hongbo , Yu Yan 
Published: July 2020

Abstract
It is well known the properties of resin impregnation wood is significantly influenced by the specific distribution pattern of resin in the modified wood. In this work, bamboo was furfurylated with an improved process. In addition to testing and evaluating its main physical, mechanical and durable properties, it was explored how the furfuryl alcohol (FA) resin is distributed in the furfurylated bamboo. To achieve this goal, scanning electron microscopy (SEM), confocal laser scanning microscopy (CLSM), nanoindentation, and imaging Fourier transform infrared microscopy (imaging FT-IR) were applied. SEM images demonstrates FA resin is mainly located in the parenchymal cell cavity of bamboo, however the existence of FA resin in the small cavities of the bamboo fibers is also observed by CLSM. In addition, the result of nanoindentation and imaging FT-IR both indicates that FA can penetrate and polymerize within the cell wall of the bamboo fiber. It is then concluded the heterogeneous but multi-scale distribution of FA resin should be responsible for the significant improvement of furfurylated bamboo in both dimensional stability and biological durability.
Creation and structural evaluation of the three-dimensional cellulosic material “White-Colored Bamboo”
Authors: Kurei Tatsuki , Tsushima Rino , Okahisa Yoko , Nakaba Satoshi , Funada Ryo , Horikawa Yoshiki 
Published: July 2020

Abstract
This study reports a new cellulosic material that maintains the original three-dimensional structure of bamboo and is produced by optimization of chemical treatments. Bamboo blocks were prepared from the current year culms of moso bamboo (Phyllostachys edulis) and subjected to three chemical treatments alone or in combination. Based on the color changes and Fourier transform infrared spectra, the combination of alkaline treatment with alcoholysis followed by Wise method was found to be an optimal treatment method. This serial treatment caused the blocks to become completely white and removed non-cellulosic components such as hemicellulose and lignin from the cell walls of the parenchyma as well as those of vascular bundles. This sample was named as “White-Colored Bamboo.” Extensive structural evaluations from anatomical- to nano- level were performed using X-ray computed tomography, X-ray diffraction, and transmission electron microscopy incorporated with the 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation technique. These multiple observations showed that the white-colored bamboo maintained its inherent hierarchical structure, thus encouraging to produce functional biomaterials.
Galectin-3 is modulated in pancreatic cancer cells under hypoxia and nutrient deprivation
Authors: da Silva Filho Antônio F. , Tavares Lucas B. , Pitta Maira G. R. , Beltrão Eduardo I. C. , Rêgo Moacyr J. B. M. 
Published: July 2020

Abstract
Pancreatic ductal adenocarcinoma is one of the most aggressive tumors with a microenvironment marked by hypoxia and starvation. Galectin-3 has been evaluated in solid tumors and seems to present both pro/anti-tumor effects. So, this study aims to characterize the expression of Galectin-3 from pancreatic tumor cells and analyze its influence for cell survive and motility in mimetic microenvironment. For this, cell cycle and cell death were accessed through flow cytometry. Characterization of inside and outside Galectin-3 was performed through Real-Time Quantitative Reverse Transcription PCR (qRT-PCR), immunofluorescence, Western blot, and ELISA. Consequences of Galectin-3 extracellular inhibition were investigated using cell death and scratch assays. PANC-1 showed increased Galectin-3 mRNA expression when cultivated in hypoxia for 24 and 48 h. After 24 h in simultaneously hypoxic/deprived incubation, PANC-1 shows increased Galectin-3 protein and secreted levels. For Mia PaCa-2, cultivation in deprivation was determinant for the increasing in Galectin-3 mRNA expression. When cultivated in simultaneously hypoxic/deprived condition, Mia PaCa-2 also presented increasing for the Galectin-3 secreted levels. Treatment of PANC-1 cells with lactose increased the death rate when cells were incubated simultaneously hypoxic/deprived condition. Therefore, it is possible to conclude that the microenvironmental conditions modulate the Galectin-3 expression on the transcriptional and translational levels for pancreatic cancer cells.
Modelling of large-particle-motion–heat-transfer coupling characteristics in rotary kiln based on discrete element method
Authors: Zheng Hongbin , Wang Bing , Liu Runjia , Zeng Dewang , Xiao Rui 
Published: July 2020

Abstract
A three-dimensional numerical simulation of the motion – heat-transfer coupling characteristics of waste tyre particles in a rotary kiln at 773–973 K was performed in this study. The particle dynamics and heat transfer characteristics were solved on a Lagrange grid. The motion model considered particle collisions using a nonslip collision model. Based on the particle motion results obtained, we considered three heat transfer mechanisms: particle–particle collision heat conduction, wall–particle radiation heat transfer, and wall–particle collision heat conduction. Subsequently, we established a mathematical model wherein the heat transfer associated with a particle is determined by its position in each time step, and implemented it on a JAVA platform to perform calculations. Finally, we obtained the temperature of each particle at each moment in the entire process. Further analysis of the simulation results shows that the average temperature and temperature standard deviation is governed by the wall temperature, rotation speed, and particle size.
Quality enhancement of Dendrobium officinale and banana juice through probiotic fermentation using beneficial lactic acid-producing bacteria
Authors: Xu Ya-nan , Zeng Li-ping , Xiao Nan , Wang Chao , Liang Zuan-hao , Wu Qiao-jin , Zhang Yan-jie , Du Bing , Li Pan 
Published: July 2020

Abstract
Consumption of functional juice is becoming increasingly popular. This study aimed to evaluate the effect of probiotic fermentation with Bacillus sp. DU-106; Lactobacillus planturum Lp-43 and Lactobacillus rhamnosus Lr-156 on the biochemical and functional characteristics, antioxidant activities and storage stability of Dendrobium officinale and banana (DOB) juice. The cell levels of the lactic acid bacteria reached near 9 log copies/mL after fermentation at 32 °C for 36 h and could keep in this level after storage at 4 °C for 28 days. After fermentation, total acidity, flavonoids and polysaccharide contents of DOB juice increased, while pH, dissolved oxygen, nitrite, nitrate, vitamin C, β-carotene, sugar contents and antioxidant capacity slightly decreased. Compared with nonfermented DOB juice, polyphenol oxidase (PPO) and peroxidase (POD) activities of fermented DOB decreased significantly, but the color value and the content of total phenols and vitamin C decreased slightly in fermented DOB juice during storage. Overall, the probiotic fermentation with selected strains could improve the quality the DOB juice, enhance antioxidant capacity and storage stability, and destroy accumulation of nitrite and nitrate during storage. Findings of this study would help in the development of beneficial beverages in industrial production.
Comparison of different drying methods on Chinese yam: changes in physicochemical properties, bioactive components, antioxidant properties and microstructure
Authors: Li Qing-ming , Xia Lei , Wang Feng , Guo Shi-yin , Zou Jin-hao , Su Xiao-jun , Yu Peng 
Published: July 2020

Abstract
In the present study, we aimed to assess the effects of hot air drying (HAD), microwave drying (MD), far-infrared radiation drying (FIRD), vacuum drying (VD) and microwave vacuum drying (MVD) on the quality, bioactive components, pasting properties, antioxidant properties, in vitro digestibility and microstructure of Chinese yam. Results showed that these drying processes greatly affected the quality of yam (p<0.05). MVD yam had a good color and its bioactive components were maintained. VD and MVD samples had the lowest setback value and breakdown value, indicating that they had a better cold paste stability and hot paste stability. In addition, MVD samples had a uniform honeycomb microscopic pore structure, and thus the rehydration rate of MVD samples was significantly higher compared with the other drying approaches. When five differently dried samples were compared by principal component analysis (PCA), the MVD samples were found to have the highest comprehensive principal component values. Therefore, based on our results, MVD was an ideal approach to dry high-quality yam.
Structural and thermal properties of the amaranth starch granule obtained by high-impact wet milling
Authors: Roa Acosta Diego Fernando , Solanilla Duque José Fernando , Agudelo Laverde Lina Marcela , Villada Castillo Héctor Samuel , Tolaba Marcela Patricia 
Published: July 2020

Abstract
In this study, amaranth starch was extracted by high-impact wet milling and its structural and thermal properties and the effect of NaOH and SDS concentrations on extraction yield were evaluated. The best condition was 55 g of starch/100 g of amaranth, with a decrease from 2.5 to 3.5 kJ/g using different milling energies. The decrease in the protein content of the starch granule is due to an effect of the interaction between surfactant and alkali, preventing the destruction of granules. All starches presented a degree of crystallinity between 21 and 28%. The internal structural changes of the starch granule were monitored by attenuated total reflectance - Fourier-transform infrared (ATR-FTIR) in the region of 990 to 1060 cm−1. Spectra showed significant differences between the peaks at 1032 and 1005 cm−1, corresponding to the crystalline/amorphous region of the starch structure. Changes in viscosity profiles were observed between 0.302 and 1.163 Pa s.
A Combinatorial Solution to Causal Compatibility
Authors: Fraser Thomas C. 
Published: July 2020

Abstract
Within the field of causal inference, it is desirable to learn the structure of causal relationships holding between a system of variables from the correlations that these variables exhibit; a sub-problem of which is to certify whether or not a given causal hypothesis is compatible with the observed correlations. A particularly challenging setting for assessing causal compatibility is in the presence of partial information; i.e. when some of the variables are hidden/latent. This paper introduces the possible worlds framework as a method for deciding causal compatibility in this difficult setting. We define a graphical object called a possible worlds diagram, which compactly depicts the set of all possible observations. From this construction, we demonstrate explicitly, using several examples, how to prove causal incompatibility. In fact, we use these constructions to prove causal incompatibility where no other techniques have been able to. Moreover, we prove that the possible worlds framework can be adapted to provide a complete solution to the possibilistic causal compatibility problem. Even more, we also discuss how to exploit graphical symmetries and cross-world consistency constraints in order to implement a hierarchy of necessary compatibility tests that we prove converges to sufficiency.
Post-randomization Biomarker Effect Modification Analysis in an HIV Vaccine Clinical Trial
Authors: Gilbert Peter B. , Blette Bryan S. , Shepherd Bryan E. , Hudgens Michael G. 
Published: July 2020

Abstract
While the HVTN 505 trial showed no overall efficacy of the tested vaccine to prevent HIV infection over placebo, markers measuring immune response to vaccination were strongly correlated with infection. This finding generated the hypothesis that some marker-defined vaccinated subgroups were partially protected whereas others had their risk increased. This hypothesis can be assessed using the principal stratification framework (Frangakis and Rubin, 2002) for studying treatment effect modification by an intermediate response variable, using methods in the sub-field of principal surrogate (PS) analysis that studies multiple principal strata. Unfortunately, available methods for PS analysis require an augmented study design not available in HVTN 505, and make untestable structural risk assumptions, motivating a need for more robust PS methods. Fortunately, another sub-field of principal stratification, survivor average causal effect (SACE) analysis (Rubin, 2006) – which studies effects in a single principal stratum – provides many methods not requiring an augmented design and making fewer assumptions. We show how, for a binary intermediate response variable, methods developed for SACE analysis can be adapted to PS analysis, providing new and more robust PS methods. Application to HVTN 505 supports that the vaccine partially protected individuals with vaccine-induced T-cells expressing certain combinations of functions.
An overview on red algae bioactive compounds and their pharmaceutical applications
Authors: Aziz Ejaz , Batool Riffat , Khan Muhammad Usman , Rauf Abdur , Akhtar Wasim , Heydari Mojtaba , Rehman Shazia , Shahzad Tasmeena , Malik Ayesha , Mosavat Seyed Hamdollah , Plygun Sergey , Shariati Mohammad Ali 
Published: July 2020

Abstract

Objectives
To review red algae bioactive compounds and their pharmaceutical applications.

Content
Seaweed sources are becoming attractive to be used in health and therapeutics. Among these red algae is the largest group containing bioactive compounds utilized in cosmetic, pharmaceutical, food industry, manure and various supplements in food formula. Various significant bioactive compounds such as polysaccharides (aginate, agar, and carrageenan), lipids and polyphenols, steroids, glycosides, flavanoids, tannins, saponins, alkaloids, triterpenoids, antheraquinones and cardiac glycosides have been reported in red algae. The red algae have rich nutritional components Different polysaccharides of red algae possess the antiviral potential namely agarans, carrageenan, alginate, fucan, laminaran and naviculan. Sulfated polysaccharides and carraginans of red algae are rich source of soluble fibers which can account for antitumor activities depending upon chemistry of various secondary metabolites and metabolism of cell line. Flavons-3-ols containing catechins from many red algae block the telomerase activity in colon cancer cells. Contraceptive agents were tested from red algae as a source for post-coital. Lectin of red algae showed pro-healing properties and anti-ulcerogenic activities. Carragenates from red algae also conferred a positive influence on diabetes. Red algae depicted a reducing effect on plasma lipids and obesity. Porphyran from red alga can act as anti-hyperlipidemic agent also reduces the apolipoprotein B100 via suppression of lipid synthesis in human liver.

Summary
The polyphenolic extracts of Laurencia undulate, Melanothamnus afaqhusainii and Solieria robusta extract show anti-inflammatory effects against multiple genera of devastating fungi. Antioxidants such as phlorotannins, ascorbic acids, tocopherols, carotenoids from red algae showed toxicity on some cancer cells without side effects. Red algae Laurencia nipponica was found insecticidal against mosquito larvae. Red algae fibers are very important in laxative and purgative activities. Gracilaria tenuistipitat resisted in agricultural lands polluted with cadmium and copper.

Outlook
In the recent decades biotechnological applications of red algae has been increased. Polysaccharides derived from red algae are important tool for formulation of drugs delivery system via nanotechnology.
A randomized trial of the effect of peer education on the sexual quality of life in patients with myocardial infarction
Authors: Abbasi Ali , Ebrahimi Hossein , Bagheri Hossein , Basirinezhad Mohammad Hasan , Mirhosseini Seyedmohammad , Mohammadpourhodki Reza 
Published: July 2020

Abstract

Background
One of the factors associated with readmission is inappropriate sexual activity after myocardial infarction (MI). This study aimed to assess the effect of peer education on the sexual quality of life (SQOL) in patients with MI.

Methods
In this randomized controlled clinical trial, 70 patients with MI meeting the inclusion criteria were assigned to experimental or control groups using block randomization. Peer education for the intervention group was provided on the third day after MI. Education sessions lasted from 90 to 120 minutes. Data were collected using demographic, sexual quality of life-female (SQOL-F), and sexual quality of life-male (SQOL-M) questionnaires during the fourth week after MI.

Results
There was no significant difference between the two groups before the intervention in terms of demographic and SQOL. The mean of SQOL in the peer education group was significantly higher than the control group at the 4-week follow-up.

Conclusions
According to the results, using peer education is recommended for the sexual health care professionals.
Demand and Supply in the Cocaine Market: An Empirical Study
Authors: Bernal Humberto 
Published: July 2020

AbstractThis research analyzes the cocaine market from an economic perspective. The consumption of the coca leaf is ancient, and cocaine has been consumed for over 100 years. Longitudinal data from producing countries is taken to estimate cocaine cost structure, and longitudinal data from regions around the world is taken to estimate demand curve. Data is annual and comes from United Nation Office on Drugs and Crime reports. A microeconomic model under imperfect competition is calibrated to estimate volumes and prices of cocaine under illegal market and legal market. Results show that cocaine production has internal economies of scale, and the demand curve satisfies law of demand. Moreover, the world demand for this narcotic segmented by regions is elastic and normal good as income increases. From this economic picture, it is necessary to regulate this market efficiently through price within a context of legality in production and consumption.
Which technique is better to place a manoeuvrable vacuum extractor cup on the flexion point? Vacca vs. Bird technique
Authors: Cuerva Marcos Javier , Espinosa Jose Ángel , Barras Silvia , Gonzalez-Cerron Silvia , Ojeda Faride , Cortés Marta 
Published: July 2020

AbstractObjectivesThe purpose of this study is to compare the vacuum extractor cup application technique described by Bird vs. the technique described by Vacca on a simulation model.MethodsSix obstetricians participated in the study. Each obstetrician performed eight vacuum assisted deliveries using the Bird technique and eight vacuum assisted deliveries using the Vacca 5-Steps technique.ResultsA total of 96 vacuum assisted deliveries were performed. The mean distance from the centre of the cup to the flexion point was 1.78±0.96 cm for the Bird technique and 1.05±0.60 cm for the Vacca technique (p<0.001). The lateral distance (over the parietal bone) was 1.16±0.69 cm for the Bird technique and 0.66±0.52 cm for the Vacca technique (p<0.001). The vertical distance (towards the frontal or occipital bone) was 1.12±1.02 cm for the Bird technique and 0.67±0.55 cm for the Vacca technique (p=0.009). In occipito anterior positions, there were no significant differences between both techniques.ConclusionsThe Vacca technique was better in transverse and posterior positions.
Family multilingualism from a southern perspective: Language ideologies and practices of Brazilian parents in Norway
Authors: Lomeu Gomes Rafael 
Published: July 2020

AbstractThis article derives from a three-year ethnographic project carried out in Norway focusing on language practices of Brazilian families raising their children multilingually. Analyses of interview data with two Brazilian parents demonstrate the relevance of examining intersectionally the participants’ orientation to categorisations such as social class, gender, and race/ethnicity. Additionally, I explore how parents make sense of their transnational, multilingual experiences, and the extent to which these experiences inform the language-related decisions they make in the home. Advancing family multilingualism research in a novel direction, I employ a southern perspective as an analytical position that: (i) assumes the situatedness of knowledge production; (ii) aims at increasing social and epistemic justice; (iii) opposes the dominance of Western-centric epistemologies; and (iv) sees the global South as a political location, not necessarily geographic, but with many overlaps. Finally, I draw on the notions of intercultural translation and equivocation to discuss the intercultural encounters parents reported. The overarching argument of this article is that forging a southern perspective from which to analyse parental language practices and beliefs offers a theoretical framework that can better address the issues engendered by parents engaged in South–North transnational, multilingual practices.