bluuebunny/crossref_metadata_2025_split huggingface dataset:
Psychological and socio-economic challenges faced by teen fathers: A narrative review
Authors: Rantho K. M. , Matlakala F. K. 
Published: October 2021

Purpose of the study: The purpose of the study was to explore the psychological and socio-economic challenges faced by teen fathers.
Methodology: This was a narrative literature review study, wherein researchers relied on secondary data from peer-reviewed published articles. Published articles were purposively sampled from different search engines such as Google scholar, South African National ETD portal, Jstor, Sabinet and EBSCOhost. The selection criteria were also determined by restricted data from the year 2003 to 2020 with a 17 years’ projection. The collected data was analysed thematically.
Main Findings: The study found that teenage boys are not immune to the challenges of parenthood. More like their counterparts, teen fathers experience psychological and socio-economic challenges as far as parenthood is concerned.
Application of the study: The lack of research on teen fathers creates an imbalance and leads people into believing that only teen mothers experience parenthood challenges. However, this study underpins that due to the lack of research on teen fathers, teen fathers experience various social ills such as stealing and dropping out of school due to the challenge of parenthood.
Novelty/Originality of the study: This study contributes positively to the arena of social service and assists social workers with guidelines to address teen fatherhood. By the virtue of their educational background, social workers can advocate for voiceless teen fathers and challenge the imbalances that invade their dignity and manhood.
Production Characteristics of Ryegrass Pasture under Different Intensities of Grazing and Nitrogen Fertilization in Integrated Crop-livestock Systems
Authors: Beltran-Barriga Pablo Antonio , Lima Rosangela Corrêa-de , Befart-Aiolfi Ricardo , Brugnara-Soares André , Simioni-Assmann Tangriani , Canaza-Cayo Ali William 
Published: October 2021

Background: There is little information on the effect of interaction between grazing intensity and nitrogen fertilization on the productive characteristics of ryegrass (Lolium multiflorum Lam). The objective of this work was to evaluate the effect of grazing intensity and nitrogen fertilization on the productive characteristics of ryegrass pasture in a crop-livestock integration system. Methods: A randomized complete block experimental design with a 2 × 2 × 5 factorial arrangement was used, with three replications. The study factors were two management grass heights, low height (LH = 10 cm) and high height (HH = 25 cm), two different nitrogen fertilization times (NP = nitrogen applied to pasture and NG = nitrogen applied to grains crop) and five evaluation periods. Result: The forage mass was higher at higher handling heights and with lower stocking rate (HH = 3995 kg DM ha-1). The forage density tended to be higher in the plots with lower grass height and nitrogen fertilization (LH = 193.5 and NP = 184.7 kg DM ha-1 cm-1). The highest accumulation rate (AR) and forage production (FP) was observed in managed pastures with HHNP (AR = 120.4 kg DM ha-1 day-1; FP = 18471 kg DM ha-1). The management of grass with HHNP provided higher forage mass, higher accumulation rate and higher dry matter production in ryegrass pasture, due to an adequate stocking rate.
Equações volumétricas para Eucaliptus sp no cerrado tocantinense
Authors: Santana Thiêssa Tamilla de Carvalho , Andrade Dayane Lucena , Coelho Maria Cristina Bueno , Erpen Mauro Luiz , Pereira José Fernando , Silva Marcos Vinicius Cardoso , Limeira Mathaus Messias Coimbra , Varavallo Maurilio Antônio 
Published: October 2021

O objetivo do trabalho foi selecionar equações volumétricas para clones de GG-100, VM-58 e seminal de Eucalyptus, em Aliança, sul do estado do Tocantins. Os dados foram coletados em plantio de Eucalyptus, com 7 anos de idade com espaçamento de 2,5m x 4,0m (1.000 árvores/ha). A seleção das árvores para a cubagem foi realizada a partir de inventário florestal sistemático e estratificado por clone e seminal para posterior determinação da distribuição diamétrica. A cubagem foi feita pelo método de Smaliam em 48 árvores com DAP ≥ 12 cm até contemplar toda a distribuição diamétrica. Foram ajustados 10 modelos matemáticos tradicionais para cada espécie de eucaliptus. Os melhores modelos ajustados para cada espécie foram determinados através através dos valores de R2aj e CV (%) juntamente com a análise gráfica de resíduos. Os melhores modelos foram: (Schumacher Hall) para VM-58 tendo o R2aj =0,88 e CV% =5,00, o modelo (Husch) para GG-100 com o R2aj= 0,77 e o CV%= 34,89 e (Schumacher Hall) para Seminal, com o R2aj= 0,91 e o CV%= 10,12. Através do teste tukey, não foi observada diferença significativa nas variáveis DAP e volume entre os clones.
Patella Sleeve Fracture with Medial Patellofemoral Ligament Tear and Lateral Femoral Condyle Fracture in an Adolescent
Authors: Sudah Suleiman , Nasra Matthew , Michel Christopher , Dijanic Christopher , Kerrigan Daniel , Curatolo Evan 
Published: October 2021

Case:
A 12-year-old boy sustained a patella sleeve fracture of the superior pole, medial patellofemoral ligament tear, and lateral femoral condyle fracture after a direct contact sledding injury. He was managed nonoperatively with 5 weeks of cylinder cast immobilization with transition to a hinged knee brace and physiotherapy. By 3 months, he returned to sport activity without patellar instability.

Conclusion:
This is the first case to describe simultaneous development of these 3 injuries in an adolescent. We recommend that patients with patella sleeve fracture undergo magnetic resonance imaging to assess for local soft-tissue injury because this may influence treatment decisions.
An Unusual Presentation of Inflammatory Shoulder Arthritis Associated with Nivolumab
Authors: Lindsay Sarah E. , Wurster Lindsey , Woolf Kirsten , Gundle Kenneth R. 
Published: October 2021

Case:
A 68-year-old woman with a history of stage IIIC (T3bN1bM0) melanoma with metastases to her right axilla status after 10 cycles of nivolumab presented with right shoulder pain. Radiographs showed a progressive erosive glenohumeral joint lesion. The workup was negative for metastasis and infection. Her clinical and radiographic findings were consistent with erosive arthritis. The patient underwent shoulder hemiarthroplasty and experienced substantial improvements.

Conclusion:
This is an unusual case of inflammatory arthritis associated with nivolumab, an antiprogrammed cell death protein 1, and is an important reminder of the musculoskeletal toxicities associated with immunotherapies.
The students' language attitudes towards lecturers' code mixing: A SFL study
Authors: Manar Marsandi , Purwaningrum Prapti Wigati 
Published: October 2021

As the effort to have the insight into the existing status of a local language in Indonesia especially in the academic setting viewed as the respected discourse, this current study aims to delineate the attitudes of millennial students towards lecturer’s code mixing to Sundanese during courses. 42 responses reflecting respondents’ perspectives towards the issue were collected via qualitative questionnaire. To reveal the view of participants on the issue under the context of higher education, responses in the forms of 62 clauses were analysed by the transitivity framework of Halliday and Matthiessen. The findings of this SFL study shows that lecturer’s code mixing to Sundanese during courses were viewed by 74% of Sundanese and non-Sundanese participants in positive ways while the rest addressed it with negative attitude. The positive attitudes were respectively represented in material, mental, relational, and existential processes while the negative attitudes were constructed sequentially in relational, material and mental, verbal, and existential clauses. The main reasons in the positive attitudes as revealed by the transitivity analysis are associated with the needs to maintain and preserve local language especially Sundanese via the academic channel.
HIGHLIGHTS:

The processes of meaning making in positive-attitude responses are realized especially in material clauses to establish the importance of preserving local languages especially Sundanese through the academic channel.
The processes of meaning making in negative-attitude responses are realized especially in relational clauses to give priority to the negative impact of using Sundanese on the academic aspect especially for non-Sundanese students.
Coupling of Rigorous Multiphase Flash with Advanced Linearization Schemes for Accurate Compositional Simulation
Authors: Abd Abdul Salam , Abushaikha Ahmad , Voskov Denis 
Published: October 2021

Abstract
The properties of fluids flowing in a petroleum reservoir are quantified by understanding the thermodynamic behavior of each flowing phase in the system. This work describes proper techniques to formulate and execute a thermodynamic model for accurately predicting the equilibrium behavior of oil-gas-brine systems within the practical range of pressure and temperature. The three-phase flash algorithm is validated against published data from the available literature. The multiphase flash procedure is implemented to generate linearized physical properties by using an Operator Based Linearization (OBL) modelling technique allowing for a combination of multiple complex physics in the nonlinear solution of governing equations. This is the first implementation of three-phase flash calculations for hydrocarbons and brines based on fugacity-activity models coupled with an advanced highly efficient linearization scheme. Our approach increases the efficiency and flexibility of the modelling process of physical phenomena such as fluid flow in porous subsurface reservoirs.
Differences in the Upscaling Procedure for Compositional Reservoir Simulations of Immiscible and Miscible Gas Flooding
Authors: de Souza Rios Victor , Skauge Arne , Sorbie Ken , Wang Gang , Schiozer Denis José , Schmall dos Santos Luiz Otávio 
Published: October 2021

Abstract
Compositional reservoir simulation is essential to represent the complex interactions associated with gas flooding processes. Generally, an improved description of such small-scale phenomena requires the use of very detailed reservoir models, which impact the computational cost. We provide a practical and general upscaling procedure to guide a robust selection of the upscaling approaches considering the nature and limitations of each reservoir model, exploring the differences between the upscaling of immiscible and miscible gas injection problems.
We highlight the different challenges to achieve improved upscaled models for immiscible and miscible gas displacement conditions with a stepwise workflow. We first identify the need for a special permeability upscaling technique to improve the representation of the main reservoir heterogeneities and sub-grid features, smoothed during the upscaling process. Then, we verify if the use of pseudo-functions is necessary to correct the multiphase flow dynamic behavior. At this stage, different pseudoization approaches are recommended according to the miscibility conditions of the problem.
This study evaluates highly heterogeneous reservoir models submitted to immiscible and miscible gas flooding. The fine models represent a small part of a reservoir with a highly refined set of grid-block cells, with 5 × 5 cm2 area. The upscaled coarse models present grid-block cells of 8 × 10 m2 area, which is compatible with a refined geological model in reservoir engineering studies. This process results in a challenging upscaling ratio of 32 000. We show a consistent procedure to achieve reliable results with the coarse-scale model under the different miscibility conditions. For immiscible displacement situations, accurate results can be obtained with the coarse models after a proper permeability upscaling procedure and the use of pseudo-relative permeability curves to improve the dynamic responses. Miscible displacements, however, requires a specific treatment of the fluid modeling process to overcome the limitations arising from the thermodynamic equilibrium assumption. For all the situations, the workflow can lead to a robust choice of techniques to satisfactorily improve the coarse-scale simulation results.
Our approach works on two fronts. (1) We apply a dual-porosity/dual-permeability upscaling process, developed by Rios et al. (2020a), to enable the representation of sub-grid heterogeneities in the coarse-scale model, providing consistent improvements on the upscaling results. (2) We generate specific pseudo-functions according to the miscibility conditions of the gas flooding process. We developed a stepwise procedure to deal with the upscaling problems consistently and to enable a better understanding of the coarsening process.
High-Order Adaptive Scheme for Reactive Transport in Heterogeneous Porous Media
Authors: Deucher Ricardo H. , Tchelepi Hamdi A. 
Published: October 2021

Abstract
Subsurface sequestration of carbon dioxide, contaminant transport, and enhanced oil recovery processes often involve complex reaction dynamics. The rock-fluid interactions span a very wide range of length and time scales, and it is important for the numerical solutions to resolve these scales properly. To address these challenges, we extend the adaptive transport scheme for the simulation of reactive transport in heterogeneous porous media developed previously (Deucher and Tchelepi, 2021) to account for (a) higher-order approximation of the convective fluxes and (b) coupling with a chemical solver connected to geochemical databases.
The numerical results demonstrate that adaptivity is more effective when a higher-order approximation of the fluxes is used. This is because of lower levels of numerical dispersion compared with low-order approximations, which helps resolve the displacement fronts more accurately. As a result, the regions that experience significant concentration and saturation gradients are more confined, and that leads to improvements in the computational efficiency of the adaptive scheme. The robustness of the approach is demonstrated using a highly heterogeneous two-phase case with multiple wells and a variable total liquid-rate.
Due to the modularity of the adaptive scheme, coupling with a chemical solver module is straightforward. The scheme is tested for a three-dimensional case that considers injection of carbonated water in a reservoir matrix of calcite. The results show that the adaptive scheme leads to an accurate representation of the reference concentration distributions of the six reactive components throughout the simulation and leads to a large reduction in the number of cell updates required to achieve the solution.
Radio Frequency Heating Simulation Using A Reservoir Simulator Coupled with Electromagnetic Solver for Soil Remediation
Authors: Guan Xiaoyue , Li Gary , Wang Hanming , Shang Shubo , Tokar Timothy , McVey Kevin , Ovalles Cesar , Wu Dagang , Chen Ji 
Published: October 2021

Abstract
Radio frequency (RF) heating is recognized as a technique having the potential to thermally enhance remediation of hydrocarbon-impacted soil. RF heating delivers electromagnetic (EM) power to a targeted body of soil, resulting in an increased soil temperature that enhances the in-situ remediation processes such as biodegradation. Antennas are placed either on the ground or installed in the soil near the ground surface. The antennas operate in the hundreds of kHz to MHz range.
To model the RF heating process, we successfully coupled a reservoir simulator with a 3-dimensional (3D) EM solver to evaluate the ability of RF technology to heat soil in situ. The coupled reservoir/EM simulator solves the EM fields and associated heating for a heterogeneous reservoir or soil volume in the presence of multiple antennas. The coupling was accomplished through a flexible interface in the reservoir simulator that allows the runtime loading of third-party software libraries with additional physics. This coupled workflow had been previously used for studying RF heating for heavy oil recovery (Li 2019).
An RF heating simulation case study was performed in support of a soil remediation field test designed to demonstrate the ability to heat soils using EM energy. The study included field test data analysis, simulation model building, and history matching the model to test data. Results indicate, on average, the soil was heated ∼2-3°C above the initial formation temperature after approximately two days (52 hours) of RF heating. We found that the RF heating was local, and our simulation model, after tuning input parameters, was able to predict a temperature profile consistent with the field test observations. With properly designed RF heating field pilots and tuning of EM and reservoir parameters in simulation models, the coupled reservoir/EM simulator is a powerful tool for the calibration, evaluation, and optimization of RF heating operations.
Evaluation of the safety and efficacy of Chinese medicine in people with asymptomatic hyperuricemia: Protocol for a prospective, double-blinded, randomized, placebo controlled clinical trial.
Authors: Yan Jing-yao , Zhou Ying-yan , Yang Qiao-wen , Wu Jia-qi , He Xiao-hong 
Published: October 2021

Abstract
BackgroundHyperuricemia increases the risk of gout and cardiovascular complications. Studys show that Chinese medicine can decrease uric acid through multiple targets, but many of these studys is conducted on animal, because the lack of a consistent prescription and mechanism.So we design this research to study whether Chinese medicine is really effective and which target is essential.MethodsThis study is a prospective, double-blinded, randomized, placebo controlled clinical trial. From March 2020 to December 2021.30 asymptomatic hyperuricemia people will be recruiting and assigned to either Chinese medicine group or placebo group, each group will have 15 subjects.During the 12-week observation period,there will be 4 times of visits.The decline in the uric acid is the main outcome measure, urinary uric acid,inflammatory biomarkers and other index that may involve in lowing uric acid are the secondary outcome measures.DiscussionThis study will probe the effect of Chinese medicine treatment on hyperuricemia, and explore possible therapeutic mechanisms. By performing this trial,we hoping to provide evidence and data to support further large clinical studies.Trial registration:ChiCTR2000038575. Registered on September 24, 2020.
No Or Diffuse Phase-Transition With Temperature In One-Dimensional Ising Model?
Authors: Zhang Li , Zhang Li-Li , Huang Yi-Neng 
Published: October 2021

Abstract
For about a century since Ising model, one of the most important microscopic models of physics, was proposed, it is agreed that there is no phase-transition with temperature in the one-dimensional based on no global spontaneous-magnetization. On the contrary, our exact calculation of all-size spontaneous-magnetization and computer simulations of spin orientation states show that the low temperature state of one-dimensional Ising model (1D-IM) is a ferromagnetic phase of multi-domains, and it is concluded that the transition process from high temperature paramagnetic to low temperature ferromagnetic phase is a diffuse phase-transition by comparing with the corresponding phenomena. Moreover, based on the previous outcome that 1D-IM is always at paramagnetic state in whole temperature range, the corresponding one-dimensional materials cannot be used in storage and memory in principle. However, our results of the low temperature ferromagnetic state in 1D-IM indicate that the relevant materials have potential applications in storage devices.
Effect of Jianpi Qinghua Decoction on Gut Microbiota, Intestinal Permeability and Glycolipid Metabolism in Newly Diagnosed T2DM Patients: Study Protocol for a Randomized, Double-blind, Placebo-controlled Clinical Trial
Authors: Jin Shenyi , Zhang Sheng , Chen Qingguang , Han Xu , Liu Yahua , Yan Zihui , Cai Mengjie , Lu Hao 
Published: October 2021

Abstract
BackgroundThe gut microbiome is a key target for traditional Chinese medicines (TCM) to ameliorate type 2 diabetes mellitus (T2DM). Patients with T2DM have quite distinct gut microbiota in comparisons with normal individuals, and it directly influences intestinal permeability. This study aims to investigate the underlying effects of Jianpi Qinghua Decoction on gut microbiota and intestinal permeability in newly diagnosed T2DM patients.Methods / designThis study is a single-center, randomized, double-blind, placebo-controlled clinical trial in 120 subjects with newly diagnosed T2DM. The patients will be randomized in a 1:1 ratio into placebo group (1/10 Jianpi Qinghua Decoction + maltodextrin twice daily, n = 60) and treatment group (Jianpi Qinghua Decoction twice daily, n = 60). The study drugs will be double blinded to both investigators and participants. The visits will be done at baseline (visit 0), 1 month (visit 1), 2 months (visit 2), 3 months (visit 3). Measures include: anthropometric measures, blood pressure, glycosylated hemoglobin (HbA1c), fasting plasma glucose (FPG), 2-hour postprandial blood glucose (2hPG) and serum insulin, total cholesterol (TC), total triglycerides (TG), low-density lipoprotein cholesterol (LDL) and high-density lipoprotein cholesterol (HDL), safety indexs (including blood routine examination, clinical urine tests, liver/renal profile), identifying intestinal permeability used ELISA testing serum LPS, serum intestinal fatty acid binding protein (IFABP), serum Zonulin concentrations and fecal sample collection for gut microbiota profiling through 16S rRNA gene sequencing. Data will be analyzed using SPSS version 26. DiscussionWe describe a clinical research protocol evaluating the impact of Jianpi Qinghua Decoction on gut microbiota and intestinal permeability in newly diagnosed T2DM patients. We assume that adminstration of Jianpi Qinghua Decoction will correct gut microbial dysbiosis and intestinal permeability, leading to improved glycemic control.Trial registrationChinese clinical trial registry, identifier: ChiCTR2000039423（http://www.chictr.org.cn/edit.aspx?pid=62537&htm=4.）.Registered on 27 October 2020.