bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation and Properties of Ag-Based Electrical Contact Material Reinforced by Ti3AlC2 Ceramic and its Derivative Ti3C2Tx
Authors: Ding Jianxiang , Zhang Kaige , Zhang Xiao , Ding Kuankuan , Xia Xinxin , Liu Dongming , Ran Songlin , Ma Chengjian , Zheng Wei , Zhang Peigen , Sun Zhengming 
Published: July 2021

Abstract
As a new kind of two-dimensional carbide material, Ti3C2Tx has revealed its exceptional potentials in many applications. Herein, we successfully prepared the Ag/Ti3C2Tx composite by powder metallurgy and investigated its comprehensive properties by compared with Ag/Ti3AlC2 composite. The Ag/Ti3C2Tx was found to possess the 29% lower resistivity(30×10-3 μΩ·m) than Ag/Ti3AlC2(42×10-3 μΩ·m) and excellent machinability with intermediate hardness (64 HV), showing broad application prospect as non-toxic electrical contact materials. The improved conductivity of Ag/Ti3C2Tx composite is attributed to the metallicity of Ti3C2Tx itself, the good interface bonding between the Ti3C2Tx and Ag, and the microstructural features rendered by the deformability of Ti3C2Tx. Although the arc erosion resistance of Ag/Ti3C2Tx needs to be further improved, it is a powerful and potential alternative material for the Ag/CdO in the further.
Spatial and Temporal Evaluation of Satellite Rainfall Estimates Over Vietnam
Authors: Gummadi Sridhar , Dinku Tufa , Shirsath Paresh B. , Kadiyala Dakshina Murthy 
Published: July 2021

Abstract
High-resolution reliable rainfall datasets are vital for agricultural, hydrological, and weather-related applications. The accuracy of satellite estimates has a significant effect on simulation models in particular crop simulation models, which are highly sensitive to rainfall amounts, distribution, and intensity. In this study, we evaluated five widely used operational satellite rainfall estimates: CHIRP, CHIRPS, CPC, CMORPH, and GSMaP. These products are evaluated by comparing with the latest improved Vietnam-gridded rainfall data to determine their suitability for use in impact assessment models. CHIRP/S products are significantly better than CMORPH, CPC, and GsMAP with higher skill, low bias, showing a high correlation coefficient with observed data, and low mean absolute error and root mean square error. The rainfall detection ability of these products shows that CHIRP outperforms the other products with a high probability of detection (POD) scores. The performance of the different rainfall datasets in simulating maize yields across Vietnam shows that VnGP and CHIRP/S were capable of producing good estimates of average maize yields with RMSE ranging from 536 kg/ha (VnGP), 715 kg/ha (CHIRPS), 737 kg/ha (CHIRP), 759 kg/ha (GsMAP), 878 kg/ha (CMORPH) to 949 kg/ha (CPC). We illustrated that there is a potential for use of satellite rainfall estimates to overcome the issues of data scarcity in regions with sparse rain gauges.
Dietary Coleus Amboinicus Herb Decreases Ruminal Methanogenesis and Biohydrogenation, and Improves Meat Quality and Fatty Acid Composition in Longissimus Thoracis of Lambs
Authors: Yanza Yulianri Rizki , Szumacher-Strabel Malgorzata , Lechniak Dorota , Ślusarczyk Sylwester , Kolodziejski Pawel , Patra Amlan Kumar , Váradyová Zora , Lisiak Dariusz , Vazirigohar Mina , Cieslak Adam 
Published: July 2021

Abstract
Background: This study aimed to investigate the effect of biologically active compounds (BAC) of Coleus amboinicus Lour. (CAL) herb fed to growing lambs on ruminal methane production, ruminal biohydrogenation of unsaturated fatty acids and meat characteristics. An in vitro trial (Experiment 1) comprising of control and three experimental diets (CAL constituting 10%, 15%, and 20% of the total diet) was conducted to determine an effective dose for in vivo experiments. After the in vitro trial, two in vivo experiments were conducted on six growing, rumen-cannulated lambs (Experiment 2) and 16 growing lambs (Experiment 3), which were assigned into the control (CON) and one experimental diet (20% of CAL). Several parameters were examined in vitro (pH, ammonia and VFA concentrations, protozoa, methanogens and select bacteria populations) and in vivo (methane production, digestibility, ruminal microorganism populations, meat quality, fatty acids profiles in rumen fluid and meat, transcript expression of 5 genes in meat). Results: The CAL lowered in vitro methane production by 51%. In the in vivo experiments, lambs fed CAL decreased methane production by 20% compared with the CON animals (Experiment 3), which corresponded to the reduced total methanogens counts in all experiments up to 28%, notably Methanobacteriales. In Experiment 3, CAL increased or tended to increase the numbers of Ruminococcus albus, Megasphaeraelsdenii, Butyrivibrioproteoclasticus, and Butyrivibriofibrisolvens. Dietary CAL suppressed the Holotricha population, but increased or tended to increase Entodiniomorpha population in Experiments 2 and 3. An increase in the polyunsaturated fatty acid (PUFA) proportion in the rumen of lambs was noted in response to the CAL diet, which was mainly attributable to the increase in C18:3 cis-9 cis-12 cis-15 (LNA) proportion. The CAL reduced the mRNA expressions of four investigated genes in meat (fatty acid synthase, stearoyl-CoA desaturase, lipoprotein lipase, and fatty acid desaturase 1). Conclusions:Summarizing, polyphenols of CAL (20% in diet) origin can mitigate ruminal methane production by inhibiting the methanogens communities. Supplementation of CAL also provides favorable conditions in the rumen by modulating ruminal bacteria involved in fermentation and biohydrogenation of fatty acids. CAL elevated the LNA concentration, which led to improved meat quality through increased deposition of n-3 PUFA.
Detection and Staging of Chronic Obstructive Pulmonary Disease Using a Computed Tomography-based Weakly Supervised Deep Learning Approach
Authors: Sun Jiaxing , Liao Ximing , Yan Yusheng , Zhang Xin , Sun Jian , Tan Weixiong , Liu Baiyun , Wu Jiangfen , Guo Qian , Gao Shaoyong , Li Zhang , Wang Kun , Li Qiang 
Published: July 2021

Abstract
BackgroundChronic obstructive pulmonary disease (COPD) remains underdiagnosed globally. The coronavirus disease 2019 pandemic has also severely restricted spirometry, the primary tool used for COPD diagnosis and severity evaluation, due to concerns of virus transmission. Computed tomography (CT)-based deep learning (DL) approaches have been suggested as a cost-effective alternative for COPD identification within smokers. The present study aims to develop weakly supervised DL models that utilize CT image data for the automated detection and staging of spirometry-defined COPD among natural population.MethodsA large, highly heterogenous dataset was established comprising 1393 participants recruited from outpatient, inpatient and physical examination center settings of 4 large public hospitals in China. CT scans, spirometry data, demographic data, and clinical information of each participant were collected for the purpose of model development and evaluation. An attention-based multi-instance learning (MIL) model for COPD detection was trained using CT scans from 837 participants and evaluated using a test set comprised of data from 278 non-overlapping participants. External validation of the COPD detection was performed with 620 low-dose CT (LDCT) scans acquired from the National Lung Screening Trial (NLST) cohort. A multi-channel 3D residual network was further developed to categorize GOLD stages among confirmed COPD patients and evaluated using 5-fold cross validation. Spirometry tests were used to diagnose COPD, with stages defined according to the GOLD criteria.ResultsThe attention-based MIL model used for COPD detection achieved an area under the receiver operating characteristic curve (AUC) of 0.934 on the test set and 0.866 on the LDCT subset acquired from NLST. The model exhibited high generalizability across distinct scanning devices and slice thicknesses, with an AUC above 0.90. The multi-channel 3D residual network was able to correctly grade 76.4% of COPD patients in the test set (423/553) using the GOLD scale, with a Cohen’s weighted Kappa of 0.619 for the assessment of GOLD categorization .ConclusionThe proposed chest CT-DL approach can automatically identify spirometry-defined COPD and categorize patients according to the GOLD scale, with clinically acceptable performance. As such, this approach may be a powerful novel tool for COPD diagnosis and staging at the population level.
Harmonic and non-periodic solutions of velocity-dependent conservative equations
Authors: Régis YEHOSSOU , Damien ADJAI K. K. , Jean AKANDE , Delphin MONSIA Marc 
Published: July 2021

Abstract
We study in this paper a quadratic damping Helmholtz equation presumed to be velocity-dependent conservative nonlinear oscillator. We show that under the usual conditions of existence of particular and exact harmonic solutions, the equation can also exhibit exact and general non-periodic solutions. We show finally the existence of exact and explicit general harmonic and isochronous solutions without requiring that the system Hamiltonian must be identically zero.
Plasma MCP-1 and Changes on Cognitive Function in Community-Dwelling Older Adults
Authors: Sanchez-Sanchez Juan Luis , Giudici Kelly V , Guyonnet Sophie , Julien Delrieu , Yan Li , Bateman Randall J , Parini Angelo , Vellas Bruno , Barreto Philipe de Souto 
Published: July 2021

Abstract
BackgroundMonocyte Chemoattractant Protein-1 (MCP-1), a glial-derived chemokine, mediates neuroinflammation and may regulate memory outcomes among older adults. We aimed to explore the associations of plasma MCP-1 levels (alone and in combination with β-amyloid deposition - Aβ42/40) with overall and domain-specific cognitive evolution among older adults.MethodsSecondary analyses including 1,097 subjects (mean age=75.3 years ± 4.4; 63.8% women) from the Multidomain Alzheimer Preventive Trial (MAPT). MCP-1 (higher is worse) and Aβ42/40 (lower is worse) were measured in plasma collected at year 1. MCP-1 in continuous and as a dichotomy (values in the highest quartile (MCP-1+)) were used, as well as a dichotomy of Aβ42/40. Outcomes were measured annually over 4 years and included: cognitive composite z-score (CCS), the Mini-Mental State Examination (MMSE), and Clinical Dementia Rating (CDR) sum of boxes (overall cognitive function); composite executive function z-score, composite attention z-score, Free and Cued Selective Reminding Test (FCSRT - memory). ResultsPlasma MCP-1 as a continuous variable was associated with the worsening of episodic memory over 4-years of follow up, specifically in measures of free and cued delayed recall. MCP-1+ was associated with worse evolution in the CCS (4-year between-group difference: β=-0.14, 95%CI=-0.26, -0.02) and the CDR sum of boxes (2-year: β=0.19, 95%CI=0.06, 0.32). In domain-specific analyses, MCP-1+ was associated with declines in the FCSRT delayed recall sub-domains. In the presence of low Aβ42/40, MCP-1+ was not associated with greater declines in cognitive functions. The interaction with continuous biomarkers values Aβ42/40 x MCP-1 x time was significant in models with CDR sum of boxes and FCSRT DTR as dependent variables.ConclusionsBaseline plasma MCP-1 levels were associated with longitudinal declines in overall cognitive and episodic memory performance in older adults over a 4-year follow-up. Whether plasma MCP-1 interacts with Aβ42/40 to determine cognitive decline should be clarified by further research. The MCP-1 effect on cognitive decline was strongest in those with amyloid plaques, as measured by blood plasma Aβ42/40.
The low-temperature shift of antigorite dehydration in the presence of sodium chloride: In situ diffraction study up to 3 GPa and 700 °C
Authors: Likhacheva Anna Yu , Rashchenko Sergey V. , Semerikova Anna I. , Romanenko Alexandr V. , Glazyrin Konstantin , Safonov Oleg G. 
Published: July 2021

Abstract
The dehydration of serpentine mineral antigorite, Mg2.8Si2O5(OH)3.6, is regarded as the key step in metamorphic transformation of ultramafic hydrated rocks in subduction zones, which affects seismicity and feeds volcanic activity. The abundance of alkali-chloride brines derived from deep subduction/upper mantle sources implies the possibility of a large control of the H2O activity by the dissolved salts. The present study examines the effect of alkali chlorides, lowering the H2O activity in fluid, on antigorite stability at high pressure. The decomposition of natural antigorite (Ural) in the presence of a halite-saturated NaCl-H2O fluid was studied up to 3 GPa and 700 °C by in situ X-ray diffraction combined with resistively heated diamond-anvil cell. Reference experiments were also performed on salt-free sample. At 1.5–3 GPa in the presence of halite-saturated fluid (XNaCl ≈ 0.15), antigorite decomposes to an intermediate product assemblage of talc+forsterite at about 550 °C, which is ≈150 °C lower compared to salt-free H2O-unsaturated system. Such a low-temperature shift supports the previous models of a broadened P-T area of serpentinite dehydration in the subducting slab. In addition, the present experiments reveal active dissolution of the product Mg silicates, first of all forsterite, in the NaCl-H2O fluid at 600–700 °C/1.5–3 GPa. This implies that dehydrated serpentinites are a potential source of fluids enriched in MgO and SiO2, which play an important role in deep metasomatic processes.
Occurrence of tuite and ahrensite in Zagami and their significance for shock-histories recorded in martian meteorites
Authors: Gu Lixin , Hu Sen , Anand Mahesh , Tang Xu , Ji Jianglong , Zhang Bin , Wang Nian , Lin Yangting 
Published: July 2021

AbstractWe report on the discovery of two high-pressure minerals, tuite and ahrensite, located in two small shock-induced melt pockets (SIMP 1 and 2) in the Zagami martian meteorite, coexisting with granular and acicular stishovite and seifertite. Tuite identified in this study has two formation pathways: decomposition of apatite and transformation of merrillite under high-P-T conditions. Chlorine-bearing products, presumably derived from the decomposition of apatite, are concentrated along the grain boundaries of tuite grains. Nanocrystalline ahrensite in the pyroxene clast in SIMP 2 is likely to be a decomposition product of pigeonite under high-P-T conditions by a solid-state transformation mechanism. The pressure and temperature conditions estimated from the high-pressure minerals in the shock-induced melt pockets are ~12–22 GPa and ~1100–1500 °C, respectively, although previous estimates of peak shock pressure are higher. This discrepancy probably represents the shift of kinetic relative to thermodynamic phase boundaries, in particular the comparatively small region that we examine here, rather than a principal disagreement between the peak shock conditions.
Penerapan Biophilic Design pada Bangunan Unit Pelaksana Teknis Daerah Perlindungan Perempuan dan Anak Kota Bekasi
Authors: Shafiyya Maharani Hanna , Dewi Pancawati 
Published: July 2021

Title: Application of Biophilic Design in Regional Technical Implementation Unit for the Protection of Women and Children of Bekasi City

Based on data from the National Commission for Women and Children in 2019, Bekasi City occupies the second position in the number of cases of violence against women and children after Jakarta. The response that has been done by the Bekasi City Government is to establish the Regional Technical Implementation Unit for the Protection of Women and Children (UPTD PPA) which provides services and psychological recovery for victims. Regarding psychological recovery, researchers agreed that nature plays a major role in the human psychological recovery process. So the design concept of this building is restoration through nature by incorporating natural features in the form of green space into the building. In designing the method applied is through the Biophilic Design approach with 14 Patterns of Biophilic Design as a guide in designing. The results of the research are the application of biophilic design patterns to the landscape, exterior, and interior buildings.
The Position of Naqshabandi Order in The Islamic Law by Shaykh Islam Wan Sulaiman Wan Sidek (D.1354h/1935m)
Authors: Mahyuddin M Khairi 
Published: July 2021

Sufi Order in the Malay World at 19thcentury is misunderstood as deviant teaching from Islam by some of Malay Muslim society. Reflecting on this, Wan Sulaiman bin Wan Sidek, a shaykh Islam and Malay Sufi scholar at 19th, he played a crucial role in clarifying this issue properly in his Malay Jawi script epistles, namely Fakihah Janiyyah fi Bayan Ma’rifah al-Ilahiyyah al-Mutabaqah Li’ayan al-Shari’ah al-‘Aliyyah and Mizan al-‘uqala wa al-Udaba’. However, some studies from contemporary Malay contested his Sufi's thought, particularly Naqshabandi Order’s position in Islamic law. This study aims to expose Wan Sulaiman’s understanding and justification in Sufis Order, specifically Naqshabandi Order in shariah. This study is a historical and textual analytical study. The finding of this study indicates that Wan Sulaiman’s idea is clear and has strong argumentation from the authentic Sufi sources that show the Sufi Order is legal and has a good position and core teaching in Islamic law.
From Hard Rock to Hadrah: Music and Youth Sufism in Contemporary Indonesia
Authors: Jamil M Mukhsin 
Published: July 2021

Many studies on Islam in Indonesia usually focus on Islamic movements from social, economic, or political perspective. One missing viewpoint that does not get much attention or even completely ignored is the spiritual life of the Muslim youths. This study would examine and analyze the growth of the Syeikhermania and their attachment to Hadrah music of Majelis Shalawat Ahbab al-Musthofa led by Habib Syeikh Abdul Qadir Assegaf, an Arabic-descent Muslim preacher. Unlike Muslim youth organizations that are enthusiastically active in political movements that tend to be radical, Syeikhermania plays a role in creating harmony and tolerance. They transform spiritually from Hard Rock to Hadrah music. Therefore, this study disclosed the participation of the Muslim youths in the Majelis Shalawat Ahbab al-Musthofa which is motivated by the need for spiritual protection and expressing their identity as Muslim youths in contrast to the liberal and secular cultures on the one hand and fundamentalist and radicalist groups on the other hand.
New solar still with energy storage: application to the desalination of groundwater in the Bou-Ismail region
Authors: Tigrine Z. , Aburideh H. , Chekired F. , Belhout D. , Tassalit D. 
Published: July 2021

Abstract
This study aims to develop efficient desalination equipment that increases the distilled water production rate and enhances heat transfer in the evaporator. It focuses on the impact of equipment geometry and energy storage during the daytime and nocturnal period. In addition, the effects of the energy storage system, which is placed in two specific areas on the yield of the distillation process with and without energy storage, have been studied. The heat exchanger system provides the energy to the water to be treated in the daytime, while the concrete part provides the energy storage in the desalination evaporator at night time. The experimental test results showed that the increase of distilled water through the heating system is very important in comparison to the productivity of the conventional solar still. The obtained results indicate that the use of energy storage increases productivity by 50% in the nocturnal period. Indeed, the daily productivity of the concrete solar still, strongly affected by the heat transfer produced via concrete to the water evaporator, is presented in this study. It was found that the average daily distillate output of concrete solar still with energy storage is more significant than that of a solar still without energy storage.
Optimization of operational parameters for the treatment of roof-harvested rainwater with biologically synthesised nanosilver coated on sand
Authors: Anoob Farhana , Meera V. 
Published: July 2021

Abstract
Rainwater is a major source of drinking water in developing countries. Roof-harvested rainwater is generally microbiologically contaminated and thus needs to be treated effectively to meet drinking standards. Filtration of rainwater with sand coated by silver nanoparticles enhances the microbial removal efficiency. In this study, the filtration parameters of treating rainwater with biologically synthesized nanosilver coated sand are optimized. Of the various synthesis methods, the biological method was chosen due to benefits such as cost-effectiveness and its eco-friendly nature. Silver nanoparticles were synthesised using papaya fruit extract and then coated on sand. The synthesized nanosilver coated sand was subjected to characterization methods such as energy dispersive spectroscopy and X-ray diffraction (XRD) analysis. With silver coated sand as control, multiple long duration tests were performed to treat rainwater with nanosilver coated sand to find the optimal values for filtration parameters such as filter bed depth and empty bed contact time (EBCT). The crystallite size of the nanosilver coated sand was found to be 43.8 nm. The optimal values for filter bed depth and EBCT were found to be 12 cm and 15 minutes respectively. The rainwater treated with nanosilver coated sand met drinking water standard IS 10500: 2012 until the media got exhausted.
Catalytic wet peroxide oxidation degradation of magenta wastewater and preparation of FeOCl/montmorillonite
Authors: Hun Tiancheng , Zhao Binxia , Zhu Tingting , Liu Linxue , Li Zhiliang , Sun Li 
Published: July 2021

Abstract
The iron oxychloride/pillared montmorillonite (FeOCl/MMT) catalyst was prepared by wet impregnation method and solid melting method. Various characterization techniques were used to analyze the microscopic morphology and structure of a series of catalysts. Moreover, the catalysts were used to treat magenta-simulated dye wastewater through catalytic wet peroxide oxidation (CWPO) degradation. The magenta removal rate and chemical oxygen demand (COD) removal rate of the magenta-simulated dye wastewater were used to evaluate the catalytic performance of the catalyst, and the optimal catalyst preparation conditions were selected. The results showed that the solid melting method was more favorable to the preparation of the catalyst, and the COD removal rate of wastewater can reach 70.8% when the FeOCl load was 3%. Moreover, 96.2% of the magenta in the solution was removed. The COD removal rate of the magenta wastewater decreased by only 12.4% after the catalyst was repeatedly used six times, indicating that the catalyst has good activity and stability. The Fermi equation can simulate the reaction process of the catalyst treating magenta wastewater at high temperature.
Influence of wavelength photoperiods and N/P ratio on wastewater treatment with microalgae–bacteria
Authors: Arcila Juan S. , Céspedes Daniela , Buitrón Germán 
Published: July 2021

Abstract
This research investigates the effect of mixing wavelength light photoperiods (12 h blue, 8 h blue: 4 h green, 4 h blue: 8 h green, and 12 h green) and N/P ratios (1.3 to 8.3) on the growth microalgae–bacteria systems, organic matter, and nutrient removals. The highest microalgae–bacteria growth performance (μ = 0.2 d−1, 481.1 ± 15.3 mg DW L−1) was observed when a 8 h blue: 4 h green mixed wavelength and a low N/P ratio were used. For both N/P ratios, biomass productivity was favored when using the blue light dominated at longer time periods. Mechanisms for nitrogen removal by assimilation depend on the N/P ratio, achieving assimilation between 49 and 65% at a low N/P ratio. High nitrogen removal (&gt;50%) showed a strong relation with alkalinity culture conditions (pH &gt; 8.5). The mixing of wavelength photoperiods seems to be a promising strategy to achieve high biomass productivity and nutrient removal. However, for optimal conditions, N/P ratios in the wastewater should be considered.