bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perception and production training effects on production of English lexical schwa by young Spanish
learners
Authors: Gómez-Lacabex Esther , Gallardo-del-Puerto Francisco , Gong Jian 
Published: October 2022

Abstract
Phonetic training has been found to expedite aural and oral abilities in the L2. While considerable research has
been conducted on the effects of perception training on production and of production training on perception, fewer studies have
addressed them as separate training regimes in the same experimental setting outside laboratory conditions. This paper examined
the effects of two training procedures (one based on production tasks and one based on perception tasks) on the production of
English lexical schwa by young Spanish learners in their intact EFL classrooms. Both trained groups exhibited
significant gains in the post-test and a slight advantage of the production-based trained group was observed. Learners’ orosensory
awareness, self-perception, and self-feedback were actions included in this protocol which may have contributed to such advantage.
Our results demonstrate that guided pronunciation training protocols can be successful in the classroom with young learners to
boost production skills.
Evaluation of Liquefaction Potential of Nagpur Region Using SPT Data: Field Assessment
Authors: Bawankule Manish , Pawar Shantanu N. 
Published: October 2022

AbstractLiquefaction is a complex, controversial but important topic in the Geotechnical engineering especially in earthquake sensitive regions. This secondary effect of earthquake causes severe damage to infrastructure. Nagpur is third largest and fastest growing and developing city in Maharashtra. The main aim of this study is to map the Nagpur city in the view of liquefaction potential occurrence and to make readily available data for further use and research.SPT-Nbased method is used for liquefaction assessment of soil encountered in the Nagpur region during investigation. The liquefaction potential is assessed regarding component of factor of safety (FS) along the depth of different soil stratum encountered during investigation. This liquefaction potential is evaluated at 56 representative sites in the city using Standard penetration tests (SPT) conducted and recorded in bore holes. Present study for computing liquefaction potential shows sensitivity in computing liquefaction against the SPT blow count and peak ground acceleration. For estimating Cyclic Resistance Ratio (CRR), theSPT-Nvalue is corrected which indicates that the soil in the region is not identical at all locations, water table is of fluctuating nature and N values are varying according to soil properties but are mostly on higher sides which means that liquefaction potential is much low.
Prediction of safe bearing capacity for settlement criteria using neuro-fuzzy inference system for Clayey soils
Authors: Phani Kumar V , Sudha Rani Ch. 
Published: October 2022

Abstract
Safe bearing capacity (SBC) may be estimated for cohesive soil using the IS Code it is essential to conduct shear tests in order to identify the angle of internal friction and cohesion, SPT tests in order to determine the N-value of the soil, as well as tests in order to determine the dry density of the soil and the relative density of the soil. The SBC of soil is estimated as per settlement criteria using laboratory evaluations of its essential properties. This study suggests the use of ANFIS to predict the Safe Bearing Capacity of cohesive soil as a function of foundation depth, foundation depth, dry density, liquid limit, plasticity index, percentage fine fraction, width/length ratio (in case of square/rectangular footing), and N-Value. An attempt is in the present work with inputs such as foundation depth, dry density, liquid limit, plasticity index, percentage fine fraction, width/length ratio, and N-Value and output as safe bearing capacity. Each input parameter has a different number of membership functions and gaussbell is used in five ANFIS models. The most accurate model, MODEL-IV, with an RMSE of 9.762 and an R2 of 0.9485. For cohesive soil, the results indicate that ANFIS can be used to predict the SBC.
Spatial temporal pattern analysis on on-demand cab services in urban areas using GIS
Authors: Kuchu Jayasree 
Published: October 2022

Abstract
As an important component of the urban public passenger transportation system, cabs / taxi offers an all-weather, convenient, comfortable, and personalized travel services for the urban residents, as well as playing a key role in the urban passenger transportation development. Cab market has gained prominence over last 2-3 years in India, in the backdrop of entry of app based aggregators which has not only disrupted auto-rickshaw and traditional taxi market but also forced automotive Original Equipment Manufacturers (OEMs) to revise their growth and marketing strategies. There is a randomness and lack of regularity of cab operation characteristics, to describe cab travel activity pattern. Inorder to plan and effectively manage on-demand cab services, and to improve better facility to public, there is a need to understand the underlying relationship between supply and demand. This study analyzed the urban cab location distribution characteristics from different temporal and spatial levels. In the time level, the difference with daily location and operation pattern (weekday versus weekends) is identified; in the space level, the cab location pattern over a space are explored. Cab coverage index and Standard deviation ellipse are the tools used in analysing the patterns over time and space frames. This research can be helpful for understanding urban cab behavior pattern, as well as the contribution to the geographical activity space analysis. GIS has been used as a supportive tool in the study
Biotransformation of Flower Waste: Effect of Bulking Agent and Microbes
Authors: Prajapati Mahima , Makwana Abhipsa R , Nair Abhilash T. , Popli Snehal A 
Published: October 2022

Abstract
In India, the flower or temple waste engendered from various sources also gets commingled with the municipal/urban solid waste or directly disposed of in the river. India is in the second position after China for flower waste generation worldwide. The high organic content of flower waste can be used to develop nutrient-rich compost that can further be used for the growth of plants. However, bulking agents (dry leaves/sawdust/coco-peat) and microbes (culture/manure) can affect composting. Thus, the prime objective of this study was to understand the effect of sawdust and cow dung manure on composting process. Two earthen pots were prepared with a 70%:10%:20% ratio of flower waste: cow dung manure: and sawdust, respectively. The other two pots with 70%:20%:10% ratio of flower waste: cow dung manure: and sawdust, respectively. An earthen pot with 100 % flower waste (control experiment) was also analysed throughout the study. The variation in temperature, moisture content, pH, conductivity, volatile content, ash, CO2 evolution, phosphate, and Total Kjeldahl Nitrogen (TKN) was monitored to achieve the objective of the whole study. The presence of sawdust was observed to be important by arresting leachate and maintaining aeration in the waste mixture, but cow dung manure also played a significant role in making more microbes and nutrients available for speeding up the process. The control experiment showed lump formation in the waste mixture due to excessive moisture development. Stable, mature, and nutrient-rich compost was obtained at the end of the composting process.
Electrocoagulation using scrap materials for removal of dye with different connection modes and electrode combinations
Authors: Rana J K , Shah K A , Maisuria K J 
Published: October 2022

AbstractThis study analyses the efficiency of electrocoagulation (EC) process by utilizing discarded metal scrap of Iron (Fe) and Aluminium (Al) as electrodes for decolourization of azo dye, Acid Yellow 36 (AY36). Different modes of connection such as mono polar parallel (M-P), mono polar series (M-S) and bi polar series (B-S) were investigated for the performance of percent colour removal and Electrical Energy Consumption (ENC). Within these connections, different electrode arrangements, such as Iron-Aluminium-Iron-Aluminium, Aluminium-Iron-Aluminium-Iron, Iron-Iron-Iron-Iron and Aluminium-Aluminium-Aluminium-Aluminium were analyzed for the dye removal efficiency. The parameters varied during the experimental runs were current density (CD) and pH. M–S showed maximum colour removal of 99.2% with system of mixed electrode Fe–Al–Fe–Al at CD 10 A/m2and ENC 0.322 Kwh/Kg dye removed. Whereas M-P showed 98.4% colour removal with hybrid system Fe–Al–Fe–Al at CD of 20 A/m2with ENC 0.209 Kwh/Kg dye removed. B-S showed 99.1% colour removal with mixed electrode system Al-Fe-Al-Fe at CD of 20 A/m2and ENC 0.86 Kwh/Kg dye removed. Overall, M-S mode gave the maximum colour removal, while M-P gave minimum ENC. The study proved useful in terms of lowering the cost of electrocoagulation by using scrap metal as electrodes and choosing the right electrode combination and connection mechanism.
Influence of solution binder ratio on behaviour of Ground Granulated Blast-Furnace Slag based Geopolymer Concrete
Authors: Sai Vihari K , Nagaraju Avari 
Published: October 2022

Abstract
In recent years the word sustainability has become a priority of many researchers. In this regard, many evolutions were put forth in the concrete industry one of them is Geopolymer concrete. Ground granulated blast furnace slag (GGBS) is used as source material which is rich in alumina and silica contents, which forms alumina silicate gel when mixed with an alkali solution of sodium hydroxide and sodium silicate which then binds with aggregate. Till now many researchers had done research on Geopolymer concrete using Fly ash as major binding material. Literature is also available on Geopolymer concrete with GGBS as major binding material but the behaviour of Geopolymer concrete was not studied widely by varying solution binder ratio. In this research, the behaviour of GGBS based Geopolymer concrete was studied, by replacing fly ash with 0%, 10%, 20% and 30% and varying solution/binder (s/b) ratio 0.3, 0.4, 0.5 and 0.6. The mix proportions were prepared by taking a ratio of 1:1:3 by weight and all the specimens were cured at ambient temperature. Mechanical properties such as compressive strength, tensile strength and flexure strength were determined. A sulphate attack test was also conducted. As quantity of FA increased, strength decreased.
Experimental study on effect of fly ash content on self-compacting concrete
Authors: Aravind Vemula , Nagaraju A. , Chaitanya K. 
Published: October 2022

Abstract
Self-compacting concrete (SCC), concrete flows by its own weight, is a recent innovation in concrete industry. In recent times, the usage of self-compacting concrete was increasing. Self-compacting concrete will be form, if it had sufficient binder content and required water content. The strength of concrete majorly depending on water to powder ratio. However, there were workability problems associated while fixing the water powder ratio as per target mean strength when SCC was made, especially for design mix for low strength and high strength of concrete. Apart from this, binder content and mineral admixture will also responsible for strength of concrete. As mineral admixture content increases the strength will reduce. If a relationship between compressive strength and mineral admixture content was found, mix proportions of SCC can be made easily. In this area more research has to be focused. This research is an attempt to assessing the grade of concrete with respect to fly ash content and relationship was developed between fly ash content and compressive strength of concrete. IS 10262-2019 and EFNARC guidelines are used in mix design. A water content of 200 kg/m3 and water powder ratio = 0.4 is kept as constant. Cement was partially replaced with fly ash at proportions of 10%, 20%, 30%, 40%, and 50%. In this research the fresh properties, mechanical properties, and Sulphate attack test of each proportion were tested. The workability properties are measured under different chemical admixture levels, such as 0.5%, 0.6%, and 0.8%. Strength properties are determined with a chemical admixture dosage of 0.6%. The fresh properties of concrete were measured by slump flow test, L–box test, and V–cone test. Mechanical properties such as compressive strength, flexure strength and split tensile strength were determined. Sulphate attack test also conducted by immersing cube specimens in 5% of H2SO4. Further, correlation study was done between compressive strength & fly ash content and also correlation between compressive strength & flexure strength.
Utilization of Plastic Waste as a Partial Replacement of Coarse Aggregates in Concrete
Authors: Gour M A , Sharma S K , Garg N , Das S K , Kumar S 
Published: October 2022

AbstractMedical Plastic waste is produced in large quantities in India each year, thus recycling it as a constituent in concrete can help to reduce waste disposal. The pandemic of Covid-19 has also resulted in increased production of the PP plastic waste. Because medical plastic wastes are harmful to both the environment and human health, using plastic trash in concrete will help to safeguard both the environment and human health Earlier, different research work were undertaken to figure out safe and feasible methods for plastic waste ejection but with scarce land resources and the threat it has posed to the environment has led us to take a step back and think of safe measures for its safe re-utilization. One such approach is utilization of plastic in concrete manufacturing. With a comparatively longer service life, concrete can act as a safe place for plastic utilization. Plastic wastes are employed as coarse aggregate in concrete in various proportions, and their suitability is tested, the impact of employing plastic waste as coarse aggregate replacement is investigated in this study. As part of the investigation of concrete’s plastic inclusion effect, different experimental research are discussed in this study. The current investigation was carried out on M30 grade concrete, with coarse aggregate replaced with medical PP plastic waste at varied proportions of 20%, 40%, 60%, 80% and 100%. The physical and mechanical properties were comparatively analysed, and the replacement value was optimised. Fresh and hardened concrete qualities were tested and the concrete replacement value for coarse aggregate was optimised at 40% partial replacement of natural coarse aggregate by PP plastic in concrete. Fresh and hardened concrete qualities were tested and analysed.
A Review on Properties of Heavy Weight Concrete
Authors: Kukreti Abhinav , Kundra Priyanka , Kathait Lavish , Garg Nikhil , Kumar Sanjeev 
Published: October 2022

Abstract
With revolutionary advancements in technology, it is inevitable to not to develop the quality of concrete as it now a basic requirement for infrastructure. The objective of this review is to highlight the main aspects of Heavy Weight Concrete which covers the general concept of radiation physics being used in HWC, advancements in HWC technology, applications of HWC, cost optimization of HWC and future challenges. Recent researches have shown the requisite for Heavy Weight Concrete as it can efficiently absorb attenuate the radiation thus it is being used in nuclear facilities, medical facilities and now it is even being used in modern warfare. According to the past studies it is found that HWC can be used for shielding from high level radiations such as alpha-rays, beta-rays, X-rays and gamma-rays. Some of the rays propagated form radioactive material can be halted easily but some rays possess ultra-penetration ability and can penetrate through living being near them which results in destructive ionization of biological cells of a living being. This comprehensive review reaches out to the several critical areas such as future uses of HWC, cost optimization in HWC can be done by adding industrial residue of steel, glass, plastic fibers and other natural materials that can be used in HWC and increasing atomic mass for producing high quality radiation attenuation concrete.
Neutral red dye adsorption on carbon nano-onions: viability assay interference and adduct characterisation
Authors: López Y C , Chao-Mujica F J , García-Rodríguez L M , Perez-Guevara O L , Antuch M , Reguera E , Desdin-García L F , Garcia-Hernández L 
Published: October 2022

Abstract
Carbon nano-onions (CNO) are versatile carbon nanomaterials with many potential biomedical applications. In this work, the interaction of submerged arc discharge in water (SADW) produced CNOs with the neutral red (NR) dye was studied. This dye is used in the in vitro toxicity NR assay, one of the most commonly used dye-based procedures to determine cell viability. Firstly the NR assay was carried out in murine fibroblast cell cultures exposed to CNOs. It was demonstrated that this assay produced invalid results due to the strong adsorption of NR on the CNOs. Fourier transform infrared spectroscopy (FTIR) and x-ray photoelectron spectroscopy (XPS) studies confirmed the effective adsorption of the NR on CNOs and π-π stacking as the main interaction between them. The adsorption of NR on the CNOs was evaluated by studying the decrease of the dye solution absorbance. The influence of different experimental conditions such as pH and CNOs dosage was evaluated: absorbance was found to diminish with the CNO dosage. For the maximum dosage used of 240 μg ml−1, the highest absorbance drops of −85% at pH 7 and −78% at pH 4 were registered. The adsorption process was found to be described best by a pseudo-first order (PFO) kinetics model (R
2 = 0.99), with a kinetic adsorption constant of k
1 = 0.02 min−1 and achieving an estimated sorption capacity of 3866 mg of dye per gram of CNOs. This is one of the highest values ever reported for dyes’ adsorption on carbon materials. Lastly, density functional theory (DFT) calculations were carried out to gain further insights into the interaction. These studies suggest a CNO highest occupied molecular orbital (HOMO)/NR lowest unoccupied molecular orbital (LUMO) electron density transfer as the main orbital interaction.
Mass ratio-dependently tunable enhancement of the optical nonlinearities of SnO2/RGO composites
Authors: Chen Shihao , Zhu Baohua , Xing Tinglun , Yang Jiejuan , Gu Yuzong 
Published: October 2022

Abstract
The composite of graphene and semiconductor nanoparticles has attracted increasing interest in the search for novel nonlinear optical materials. Herein, composites of reduced graphene oxide (RGO) and SnO2 nanoparticles with different mass ratios were synthesized via a facile hydrothermal method. The structural morphology and basic physical properties of the SnO2/RGO composites were characterized using TEM, SEM, XRD, Raman, XPS and UV–Vis spectra, indicating that SnO2 nanoparticles were uniformly anchored on the surface of graphene nanosheets through covalent and partial-ionic bonds. The third-order optical nonlinearities of the composites were studied for the first time by the Z-scan technique using a picosecond laser at 532 nm. It was found that the composites demonstrated saturable absorption and positive nonlinear refraction properties, and both were significantly enhanced compared with pure SnO2 nanoparticles and RGO nanosheets, and the enhancement was tunable with the variation of SnO2:GO mass ratio. The maximum saturable absorption coefficient and the third-order susceptibility of the as-prepared SnO2/RGO composites were obtained to be −2.93×10–11 m W−1 and 2.25 × 10–11 esu, respectively. The maximum saturable absorption modulation depth obtained was 10% with the corresponding saturation light intensity of 0.3 GW cm−2. Moreover, the optimised third-order susceptibility of SnO2/RGO was found much greater than many other materials ever studied. Several involved factors contributing to the nonlinearities were discussed. The results propose that the third-order optical nonlinearities of SnO2/RGO and other similarly structured composites can be potentially tuned to meet certain application requirements of nonlinear optical devices by controlling the mass ratio of semiconductor to graphene.
N-of-1 Trials vs. Usual Care in Children With Hypertension: A Pilot Randomized Clinical Trial
Authors: Samuel Joyce P , Bell Cynthia S , Samuels Joshua A , Rajan Celin , Walton Adrienne K , Green Charles , Tyson Jon E 
Published: October 2022

Abstract

Background
Blood pressure (BP) is often inadequately controlled in children treated for hypertension, and personalized (n-of-1) trials show promise for tailoring treatment choices. We assessed whether patients whose treatment choices are informed by an n-of-1 trial have improved BP control compared to usual care.

Methods
A randomized clinical trial was conducted in a pediatric hypertension clinic in Houston from April 2018 to September 2020. Hypertensive adolescents and young adults 10–22 years old were randomized 1:1 to a strategy of n-of-1 trial using ambulatory BP monitoring to inform treatment choice or usual care, with treatment selected by physician preference. The primary outcome was the proportion of patients with ambulatory BP control at 6 months in a Bayesian analysis.

Results
Among 49 participants (23 randomized to n-of-1 trials and 26 to usual care), mean age was 15.6 years. Using skeptical priors, we found a 69% probability that n-of-1 trials increased BP control at 6 months (Bayesian odds ratio (OR) 1.24 (95% credible interval (CrI) 0.51, 2.97), and 74% probability using neutral informed priors (OR 1.45 (95% CrI 0.48, 4.53)). Systolic BP was reduced in both groups, with a 93% probability of greater reduction in the n-of-1 trial group (mean difference between groups = −3.6 mm Hg (95% CrI −8.3, 1.28). There was no significant difference in side effect experience or caregiver satisfaction.

Conclusions
Among hypertensive adolescents and young adults, n-of-1 trials with ambulatory BP monitoring likely increased the probability of BP control. A large trial is needed to assess their use in clinical practice.

ClinicalTrials.gov
NCT03461003

Clinical trial registry
ClinicalTrials.gov; NCT 03461003