bluuebunny/crossref_metadata_2025_split huggingface dataset:
Increases in pH of acid mine drainage with coal fly-ash application
Authors: Priatmadi B J , Septiana M , Mulyawan R , Saidy A R 
Published: February 2022

Abstract
Coal fly-ash (CFA), waste materials resulted from coal processing in power plants, contains oxides that have capability to neutralize hydrogen ions of acid mine drainage (AMD). A batch reactor experiment was conducted by adding different amounts of CFA (0, 50, 100, 150, 200, and 250 Mg ha−1) to reclaimed mining soils (RMS) to quantify the effect of CFA addition on changes in the pH of AMD. AMD was then flowed into the reactors following the incubation of the mixtures of RMS and CFA for 7 days, and the changes in pH of AMD in the reactors were monitored over 35 days. Results of the study showed pH and specific surface areas (SSA) of soils increased significantly with the addition of CFA. pH of AMD over 35 days also improved with CFA application, in which the degree of pH improvement was controlled by the amounts of added CFA. The addition of CFA <200 Mg ha−1 was not able to result in pH of AMD >6.0, and AMD pH of 6.0 was obtained when the amount of applied CFA reached to 200 Mg ha−1. Increasing pH of AMD is attributed to the CaO and MgO contained in the CFA neutralizing the H+ ions of AMD. Results of the study demonstrate the potential of CFA in remediation of AMD, in particularly in increasing pH of AMD.
Nutrients removal from integrated multi-trophic aquaculture (IMTA) water using waste stabilization ponds (WSP)
Authors: Ajie G S , Prihatiningtyas E 
Published: February 2022

Abstract
Nutrients enrichment due to waste from Keramba Jaring Apung (KJA) aquaculture is one of the main causes of eutrophication in Indonesian Lakes and Reservoirs. Integrated multi-trophic aquaculture (IMTA) is one of environmentally friendly aquaculture that currently being developed at the Research Center (RC) for Limnology - National Research and Innovation Agency (BRIN). This aquaculture would re-use its water, along with fish waste and leftover fish pellets, to grow Duckweed (Lemna sp.) in its ponds system as additional feed. However, due to closed water recirculation in IMTA ponds system, the water quality would eventually deteriorate which would be marked with high turbidity of organic solid waste and low dissolved oxygen (DO). This study aims to improve water quality from aquacultures activity, especially in nutrients (nitrogen and phosphorus) reduction, using a constructed wetland (CW) system. This system consists of waste stabilization ponds (WSP) and compartments of CW and adsorbent. During this initial stage, IMTA water was treated in the WSP for then observed for its improvements in the nutrients and other water quality parameters. This research was conducted from July to September 2019 in the Prototype Laboratory of RC for Limnology-BRIN. Parameters of DO, conductivity, pH, oxidation reduction potential (ORP), and salinity were observed using a calibrated water quality checker (WQC) Horriba©, while nutrients parameters in the form of N-NH4, N-NO2, N-NO3, P-PO4, and dissolved organic matters (DOM) were measured in the laboratory referring to the standard method of the American Public Health Association (APHA). Results showed that average values of turbidity and electrical conductivity parameters were reduced from 102 to 76 NTU and 0.21 to 0.14 mS/cm, respectively. Average nutrients reductions were also found from N-NO2, N-NO3 and P-PO4 parameters of 85.5%, 44.3% and 37%, respectively. Significant changes were observed in parameters of DO and N-NH4. DO was increased from 4.63 mg/L to 7.44 mg/L, while N-NH4 were reduced for 81%. Even though the experiments were not conducted during low DO conditions of water from IMTA ponds, improvements from the vital water quality parameters after treatment in the WSP were observed.
Screening of Indonesian marine bacteria and their potential for D-tagatose production
Authors: Laksmi F A , Nuryana I , Agustriana E , Muhyiddin S , Yetti E , Wijaya H 
Published: February 2022

Abstract
A rare natural ketohexose, D-tagatose, has attracted an increasing interest as sucrose substitute due to its low caloric value and similar properties to sucrose. D-Tagatose is enzymatically produced by using L-aldose isomerase (LAI) as catalyst and D-galactose as substrate. Therefore, a continuous effort to obtain a new isolate with high LAI activity is needed. Therefore, our collection of marine bacteria was assayed by employing designed minimum culture media with 0.5% (w/v) D-galactose as the sole carbon source. D-Tagatose production ability of bacterial strains were investigated and quantified by high performance liquid chromatography (HPLC). Our investigation showed that from 23 Indonesian marine bacteria, a total 18 bacteria possessed the ability to grow in the designed media. This result was subsequently confirmed using HPLC and showed that a total of four isolates, namely isolates LBF 110, 138, 108, and 131, exhibited a D-tagatose yield. Isolates LBF 110 and 138 were identified in this study according to molecular identification 16S rRNA method as Bacillus xiamenensis, and Brevibacterium sediminis, respectively. The other two isolates, LBF 108 and 131, were already identified in previous study as Shewanella algae and Pseudomonas stutzeri, respectively. This result suggests the potential of these isolates as D-tagatose producing bacteria.
Effect of fixator on color performance of bark extract from three tropical wetland species for fabric dye
Authors: Saefudin  , Basri E 
Published: February 2022

Abstract
Fixation is a stage in dyeing fabric or batik fabric with natural dyes to obtain the desired color and bind the color so that it does not fade quickly due to sweat, washing, sunray, and rubbing. Three fixators used as color binders were alum (Al2[SO4]3), lime (CaCO3), and tunjung (FeSO4). Each material showed a different color on each extract. This activity aimed to observe the color performance of bark extracts from three wetland species applied to batik fabric with 1 or 2 combinations of fixators. The results showed the color performance of batik fabric depended on the bark of tree species and the kind of fixator. The performance of bark extract with fixators produced darker and sharper colors than without the use of fixators. The application of lime on Rhizophora apiculata Bl. bark extract produced dark moderate orange color, while the combination of lime and tunjung produced very dark orange (Brown tone). The combination of lime and tunjung on Acacia mangium Willd and the Terminalia catappa L. barks gave a dark moderate orange color with different intensities. In contrast, the combination of alum and tunjung on Terminalia catappa L. bark extract produced a very dark greyish orange color.
Allelopathic potential of root exudates from perennial herbaceous plants against Ganoderma boninense
Authors: Suwandi S , Rahmadhani T P , Suparman S , Irsan C , Muslim A. 
Published: February 2022

Abstract
Allelopathic potential of root exudates from edible perennial herbaceous (Canna indica, Maranta arundinacea, and Xanthosoma sagittifolium) against mycelium of Ganoderma boninense, basal stem rot pathogen of oil palm has been studied in vitro. Root exudates were extracted from 10-day old aseptically growing plants generated from surface-sterilized corm or rhizome on water agar. Allelopathic activity was tested based on inhibition of G. boninense mycelial growth on malt extract agar supplemented with 0.1 and 1.0 μL mL−1 ethyl acetate extract of root exudates. Root exudate from X. sagittifolium and C. indica was found to significantly inhibit the mycelial growth of G. boninense at 0.1 and 1.0 μL mL−1, respectively.
Influence of tool hardness on tool wear, surface roughness and acoustic emissions during turning of AISI 1050
Authors: Kuntoğlu Mustafa , Gupta Munish Kumar , Aslan Abdullah , Salur Emin , Garcia-Collado A 
Published: February 2022

Abstract
In this work, chemical vapor deposition (CVD) coated carbide inserts with different hardness of P types entitled as hard, semi-hard and tough are utilized for turning of AISI 1050 steel. Flank wear, surface roughness, cutting force, acoustic emissions and chips morphology were considered under dry turning conditions for the comparison of the effect of cutting speed, feed rate and cutting tool hardness. The novelty of the study is to investigate comprehensively the effect of tool hardness along with cutting parameters on the the machinability characteristics. This approach provides to understand the underlying mechanism of tool wear and its influence on the surface properties of the workpiece which is useful in practice for upgraded machinability. The results indicated that the tool hardness affects flank wear dramatically followed by surface roughness and acoustic emissions values and ideal values of cutting conditions are attained with semi-hard tool. Scanning electron microscope (SEM), energy dispersive spectrum (EDX) and mapping analysis also demonstrated the wear developments are distinctive with using different types of tool hardness values. The findings depicted that tool hardness has significant impact on machining characteristics which need to be dealed under particular cutting conditions. 65 HRC of cutting tool provides better machinability in terms of surface roughness, tool wear, acoustic emissions and cutting forces followed by 60 HRC and 70 HRC respectively.
Effect of surface texturing on rotary vane actuator under different lubrication regimes
Authors: Hu Teng , Xie Liangxi , Fan Zhoupeng , Lei Yuchen 
Published: February 2022

Abstract
In this study, surface texturing was considered to solve the problem of the frictional surface of the rotary vane actuator end seal having difficulty in generating hydrodynamic lubrication. However, the current studies mostly set the minimum oil film thickness as a constant value, which could not reflect the real situation. A lubrication model for textured surfaces under different lubrication regimes was first established in this study based on the mean Reynolds equation and boundary lubrication theory. The model just required assuming the initial value of the minimum oil film thickness, and then the value was automatically corrected by the program in the calculation until the result converged. The rationality of the model was verified by comparing the model results with the friction experimental results. Subsequently, the trend of the friction coefficients for circular and square textures at different speeds and area ratios was analysed to investigate the effects of texture shape, area ratio and speed on the friction of the textured interface under this model.
Preparation and adsorption properties of magnetic graphene oxide composites for the removal of methylene blue from water
Authors: Song Xiaosan , Zhou Jie , Fan Jishuo , Zhang Qianqian , Wang Sanfan 
Published: February 2022

Abstract
Using graphite powder, chitosan, and diatomite as raw materials, graphene oxide was first prepared by Hummer’s method and GO was carboxylated and modified into hydroxylated graphene oxide (GOH). It was then modified into GOH via carboxylation, and then diatomite (DE) and the prepared magnetic chitosan (MCS) were supported on GOH by blending to generate the magnetic graphene oxide composite GOH/DMCS. This novel composite was then studied to determine its methylene blue wastewater adsorption capability. Results showed that at 45 °C, a dosage of adsorbent of 1 g L−1, and a pH of 12, the adsorption of methylene blue dye by GOH/DMCS reached equilibrium after 120 min, and the maximum adsorption amount was 205.34 mg·g−1. The adsorbent was then cycled eight times to test its reusability, and the adsorption efficiency remained greater than 86%. The adsorption process of methylene blue by GOH/DMCS fit well to a pseudo second-order kinetic model. These results showed that the adsorption rate was more sensitive to the initial concentration of methylene blue dye, which implies a chemical adsorption process. The adsorption process conformed to the Langmuir isotherm adsorption model, indicating that the adsorption was monolayer surface adsorption.
First-principles calculations for transient absorption of laser-excited magnetic materials
Authors: Sato Shunsuke A 
Published: February 2022

Abstract
We investigate the modification in the optical properties of laser-excited bulk cobalt and nickel using the time-dependent density functional theory at a finite electron temperature. As a result of the first-principles simulation, a complex change in the photoabsorption of the magnetic materials is observed around the M
2,3 absorption edge. Based on the microscopic analysis, we clarify that this complex absorption change consists of the two following components: (i) the decrease in the photoabsorption in a narrow energy range around the M
2,3 edge, which reflects the blue shift of the absorption edge due to the light-induced demagnetization, and (ii) the increase in the photoabsorption in a wider range around the M
2,3 edge, which reflects the modification in the local-field effect due to the light-induced electron localization. The relation between the transient optical and magnetic properties may open a way to monitor ultrafast (de)magnetization and spin dynamics in magnetic materials via transient absorption spectroscopy.
Reciprocity, community detection, and link prediction in dynamic networks
Authors: Safdari Hadiseh , Contisciani Martina , De Bacco Caterina 
Published: February 2022

Abstract
Many complex systems change their structure over time, in these cases dynamic networks can provide a richer representation of such phenomena. As a consequence, many inference methods have been generalized to the dynamic case with the aim to model dynamic interactions. Particular interest has been devoted to extend the stochastic block model and its variant, to capture community structure as the network changes in time. While these models assume that edge formation depends only on the community memberships, recent work for static networks show the importance to include additional parameters capturing structural properties, as reciprocity for instance. Remarkably, these models are capable of generating more realistic network representations than those that only consider community membership. To this aim, we present a probabilistic generative model with hidden variables that integrates reciprocity and communities as structural information of networks that evolve in time. The model assumes a fundamental order in observing reciprocal data, that is an edge is observed, conditional on its reciprocated edge in the past. We deploy a Markovian approach to construct the network’s transition matrix between time steps and parameters’ inference is performed with an expectation-maximization algorithm that leads to high computational efficiency because it exploits the sparsity of the dataset. We test the performance of the model on synthetic dynamical networks, as well as on real networks of citations and email datasets. We show that our model captures the reciprocity of real networks better than standard models with only community structure, while performing well at link prediction tasks.
Home and ambulatory blood pressure levels below target range and clinical effort to detect this condition: a population-based study in older treated hypertensives
Authors: Sánchez-Martínez Mercedes , López-García Esther , Guallar-Castillón Pilar , Ortolá Rosario , García-Esquinas Esther , Cruz Juan , Gijón-Conde Teresa , Rodríguez-Artalejo Fernando , Townsend Raymond R , Banegas José R 
Published: February 2022

Abstract

Background
With implementation of stricter blood pressure (BP) treatment targets, potential for excessive BP lowering becomes an important issue, especially in older patients.

Objectives
Assess the magnitude, indicators and detection effort of BP levels below-target-range (BTR-BP) recommended by the European hypertension guidelines in older treated hypertensive patients (130–139/70–79 mmHg).

Design
Cross-sectional, retrospective study (Seniors-ENRICA-2 cohort).

Setting
General population.

Subjects
1,329 treated hypertensive patients aged ≥65, assessed with three home casual BP measurements and 24-hour ambulatory BP monitoring (ABPM).

Methods
Based on the European hypertension guidelines and the literature, BTR-BPs were defined as mean BP &lt;130/70, &lt;125/65, &lt;130/70 and &lt;110/55 mmHg, for casual BP, 24-hour BP, daytime BP and nighttime BP, respectively, and hypotension as &lt;110/70, &lt;105/65, &lt;110/70 and &lt;90/55 mmHg, respectively.

Results
Participants’ mean age was 72 ± 4.4 (50.3%, women). Based on casual BP, 7.2% of patients were in target range (130–139/70–79 mmHg), 44.3% in BTR-BP (&lt;130/70) and 20.8% hypotensive (&lt;110/70). Some 44.9, 54.9 and 22.0% of patients were in BTR-BP for 24-hour BP, daytime BP and nighttime BP, respectively, and 11.0, 21.1 and 5.6%, respectively, were hypotensive. The number of patients needed for ABPM to detect one case of 24-hour-, daytime-, and nighttime-BTR-BP was 3, 2 and 5, respectively, and 10, 5 and 18, respectively, for detecting one hypotensive case. Cardiovascular disease and female sex were associated with both BTR-BP and hypotension, and the number of antihypertensive drugs was only associated with hypotension.

Conclusions
BTR-BP levels were common in older treated patients at home and in everyday life, more frequent than many trials report, and daytime ABPM is highly size-efficient for detecting the low ambulatory BP conditions.
Frailty and stroke thrombectomy outcomes—an observational cohort study
Authors: Joyce Nevan , Atkinson Timothy , Mc Guire Karen , Wiggam M Ivan , Gordon Patricia L , Kerr Enda L , Patterson Cathy E , McILmoyle Jim , Roberts Gerallt E , Flynn Peter A , Burns Paul , Rennie Ian R , Taylor Rowan Martin , Quinn Terence J , Fearon Patricia 
Published: February 2022

Abstract

Introduction
Mechanical thrombectomy (MT) can improve outcomes following ischaemic stroke. Patient selection for MT is predominantly based on physiological and imaging parameters. We assessed whether people living with pre-stroke frailty had differing outcomes following MT.

Methods
We included consecutive patients undergoing MT at a UK comprehensive stroke centre. We calculated a cumulative deficits frailty index to identify pre-stroke frailty in those patients presenting directly to the centre. Frailty was defined as an index score ≥ 0.24. We assessed univariable and multivariable association between pre-stroke frailty and stroke outcomes. Our primary outcomes were modified Rankin Scale (mRS) and mortality at 90 days.

Results
Of 175 patients who underwent MT (2014–2018), we identified frailty in 49 (28%). Frail and non-frail patients had similar rates of thrombolysis administration, successful recanalization and onset to recanalization times. Those with pre-stroke frailty had higher 24 hour National Institutes of Health Stroke Scale (12(IQR: 8–17) versus 3(IQR: 2–13); P = 0.001); were less likely to be independent (mRS 0–2: 18% versus 61%; P &lt; 0.001) and more likely to die (47% versus 14%; P &lt; 0.001) within 90 days. Adjusting for age, baseline NIHSS and thrombolysis, frailty remained a strong, independent predictor of poor clinical outcome at 90 days (Death OR: 3.12 (95% CI: 1.32–7.4); dependency OR: 3.04 (95%CI: 1.10–8.44). Age was no longer a predictor of outcome when adjusted for frailty.

Conclusion
Pre-stroke frailty is prevalent in real-world patients eligible for MT and is an important predictor of poor outcomes. Routine assessment of pre-stroke frailty could help decision-making around patient selection for MT.
Letter regarding article named ‘Is acupuncture effective in the treatment of COVID-19 related symptoms? Based on bioinformatics/network topology strategy’
Authors: Zheng Haizhen 
Published: February 2022

Abstract
I noticed a recently published paper named ‘Is acupuncture effective in the treatment of COVID-19 related symptoms? Based on bioinformatics/network topology strategy’ with great interest. I am inspired and also have some doubts, which are mainly about the active compounds of acupuncture treating COVID-19. The authors choose only two active compounds, which remains to be elucidated clearly with some criteria description. The 11 300 disease targets of COVID-19 were screened using the terms like the related symptoms, which might be other diseases’ manifestations. So the better legends of Figures and Tables should be the terms like COVID-19-related symptoms, instead of COVID-19.
Nordic Penal Exceptionalism: A Comparative, Empirical Analysis
Authors: Crewe Ben , Ievins Alice , Larmour Simon , Laursen Julie , Mjåland Kristian , Schliehe Anna 
Published: February 2022

AbstractBased on a survey administered in 13 prisons in England & Wales and Norway, as part of a research programme with explicitly comparative aims, this article seeks to address both the relative and absolute dimensions of the Nordic penal exceptionalism thesis. It outlines the consistently more positive results in Norway compared to England & Wales, explaining them primarily with reference to the former’s much higher quality and use of open prisons. At the same time, it emphasizes that, even in an unusually humane prison system, prisoners report considerable pain and frustration. The article also makes the case that comparative analysis should strive to be systematic, but that such comparisons are always imperfect, making methodological transparency all the more essential.
Population structure and signals of local adaptation in Eugenia uniflora (Myrtaceae), a widely distributed species in the Atlantic Forest
Authors: Vetö Nicole Moreira , Postolache Dragos , Guzman Escudero Frank L , Vajana Elia , Burgo Braga Ricardo , Salgueiro Fabiano , Margis Rogério , Vendramin Giovanni G , Turchetto-Zolet Andreia C 
Published: February 2022

Abstract
Evolutionary diversity in species can arise in many ways, including local adaptation. Despite the global importance of tropical forest ecosystems, few studies have explored patterns of local adaptation in tropical tree species. We investigated population genetic structure and adaptive genetic diversity in Eugenia uniflora, a widely distributed tree species across the Atlantic Forest Domain (AFD). We sampled E. uniflora in distinct environments from the AFD and genotyped 523 single-nucleotide polymorphisms (SNPs) using a candidate gene approach. We studied neutral population structure and used two outlier methods based on population differentiation (Bayescan and LEA) and one gene-environment association analysis (LFMM) to detect putative SNPs under divergent selection. We detected spatial population structuring between the northern and southern range of the species distribution and higher genetic diversity in southern populations from the riparian forest. We found 18 candidate loci potentially involved in local adaptation, among which LEA and LFMM both detected seven loci. Overall, precipitation-related variables were more represented in statistically significant genotype-climate associations (c. 60%). Our study provides a first insight into the distribution of adaptive genetic variation in E. uniflora, highlighting how tropical tree species may adapt over time and across the AFD.