bluuebunny/crossref_metadata_2025_split huggingface dataset:
Płuczka aminowo-glikolowa szansą na stabilność reaktywnych formacji ilasto-łupkowych oraz frakcji ilastej skał piaskowcowych
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Uliasz Małgorzata , Zima Grzegorz ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Jasiński Bartłomiej ,   Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Published: October 2022

Podczas przewiercania warstw skał ilasto-łupkowych często występują problemy z utrzymaniem stateczności ściany otworu. Wywołują je zarówno czynniki związane z regionalnymi oraz lokalnymi warunkami naprężeniowymi na danym obszarze, z właściwościami mechanicznymi skał w otworze, jak i z fizykochemicznymi oddziaływaniami w układzie skała–płuczka wiertnicza. Procesy fizykochemiczne związane z reakcją płuczki z przewiercanymi reaktywnymi utworami iłowców i mułowców są jednymi z kluczowych przyczyn niestabilności tych warstw. Zapobieganie skutkom tych niekorzystnych procesów fizykochemicznych należy prowadzić poprzez dobór mineralizacji płuczki wiertniczej w odniesieniu do mineralizacji wody w skale oraz zastosowanie w jej składzie inhibitorów polimerowych efektywnie ograniczających hydratację „wrażliwych na wodę” skał ilasto-łupkowych. W związku z tym ciągle są poszukiwane nowe technologie wysokoinhibitowanych płuczek wiertniczych, które pozwoliłyby na zmniejszenie hydratacji przewiercanych warstw w stopniu zbliżonym do efektu zastosowania płuczki inwersyjnej. Takie działanie przypisywane jest płuczkom, w których rolę inhibitora polimerowego pełnią środki zawierające w łańcuchu głównym grupę aminową. Środki te ze względu na specjalny mechanizm oddziaływania na przestrzenie międzypakietowe minerałów ilastych wyróżniają się wyższą skutecznością zapobiegania ich pęcznieniu i dyspersji niż znane i dotychczas stosowane inhibitory polimerowe. W artykule przestawione zostały wyniki badań nad opracowaniem wysokoinhibitowanej płuczki wiertniczej zawierającej różne rodzaje środków aminowych. Badania laboratoryjne przeprowadzono dla warunków występujących w przewiercanych utworach jednostek karpackich, jednostki stebnickiej i miocenu autochtonicznego. Celem tych badań była ocena właściwości reologiczno-strukturalnych i inhibitujących oraz filtracji nowej odmiany inhibitowanej płuczki wiertniczej – aminowo-glikolowej. Przeprowadzone w warunkach otworopodobnych badania z różnymi rodzajami środków aminowych wykazały przydatność tej płuczki do przewiercania warstw skał ilasto-łupkowych i dowiercania horyzontów produktywnych występujących na złożu Przemyśl.
Methods of teaching geometry in the framework of the updated curriculum in mainstream education
Authors: Abylkassymova Alma , Ardabayeva Almagul , Shuakayev Marat , Tuyakov Yessenkeldy , Zhumaliyeva Lyazzat , Khyrkhynbay Zhamal 
Published: October 2022

This study aimed to determine that the area benefiting from the secondary education curriculum published in the 2020–2021 academic year is the training related to geometry lessons. In this direction, the opinions of 35 secondary school geometry students working in 2 different secondary schools and geometry lessons were consulted. To determine what will be done, a study design from qualitative research was used. Training can be obtained from the delivery of this product. It consists of questions from restructuring and explaining the research. After the findings were reached, they were analysed in detail by the content analysis method used in the described method, and the predicted were categorised. It has been reached that it can be applied for geometric use, due to problems related to educational principles, insufficient mathematics education, use of materials and so on. Teaching the new education can be achieved by having too much content for teaching, teaching well and teaching the new education correctly. In the same way, the scanning of the application contents and the resource counting process have not been completed in order for the new ones to work better. The conclusions to be drawn from the results of this research are described.
Keywords: Secondary education, education, curriculum, geometry, opinion;
DOMINIQUE HARTTMAN EM: A SAGA DE SER PESQUISADORA E MULHER NO BRASIL
Authors: Possamai Kons Luiza 
Published: October 2022

Este artigo propõe uma imersão em minha experiência com a escritatória que consiste em um processo de escrita baseado na escuta de vídeo chamadas gravadas, e nas memórias que se formulam a partir da linguagem oral. Durante os seis encontros virtuais desenvolvidos com Barbara Paul, Daniela Mara e Eliza Prataviera percebo que a escritatória não deixa de ser uma amostragem sobre o que é ser pesquisadora e artista neste contexto de precarização da pesquisa. Desse modo, a fim de discutir este regime de instabilidade comum a trajetória de mulheres: na junção entre nossas histórias crio uma versão da figura satírica, que surgiu durante nossos encontros, da pesquisadora fictícia Dominique Harttman.
International Registries
Authors: Porter Martyn , Rolfson Ola , de Steiger Richard 
Published: October 2022

Abstract:
National-level joint arthroplasty registries were among the first large orthopaedic surgery databases and represent some of the longest-running and most influential big databases in our profession. Nordic registries were among the first registries and were followed by excellent registries in the United Kingdom and Australia. In this article, we describe each of these registries and highlight the data elements collected, the data points that can be obtained by linking the national arthroplasty registries to other national registries or databases, the completeness of data, and the strengths and weaknesses of each database. Each of these registries publishes an annual report that is available online, and each also can do more detailed analysis of certain aspects of its data for special studies.
When evaluating and interpreting data from national joint registries, the user should be aware that, despite the power of huge numbers, there remain numerous limitations to the observational data. Strong selection biases exist with regard to which patients are chosen for which procedure. Surgeons of different skill levels may use one technique or implant differentially compared with another. The end points that registries collect differ widely: for example, some report only hip dislocations leading to revision rather than all dislocations. Registries in countries in which there are long wait times for revision surgery may report artificially low revision rates compared with countries in which revision surgery is more easily accessible. Despite these limitations, registries have the merit of reporting the actual results of huge numbers of surgical procedures performed across the spectrum of hospitals, surgeons, and patients, making the data extremely powerful for identifying trends, identifying early signs of problems related to certain implants or implant classes, and identifying associations between variables that can be further studied to determine if the effect is causal.
Administrative Data Use in National Registry Efforts: Blessing or Curse?
Authors: Bedard Nicholas A. , Katz Jeffrey N. , Losina Elena , Opare-Addo Maame B. , Kopp Paul T. 
Published: October 2022

Abstract:
“Big data” refers to a growing field of large database research. Administrative data, a subset of big data, includes information from insurance claims, electronic medical records, and registries that can be useful for investigating novel research questions. While its use provides salient advantages, potential researchers relying on big data would benefit from knowing about how these databases are coded, common errors they may encounter, and how to best use large data to address various research questions. In the first section of this paper, Dr. Nicholas A. Bedard addresses the four major pitfalls to avoid with diagnosis and procedure codes in administrative data. In the next section, Dr. Jeffrey N. Katz et al. focus on the strengths and limitations of administrative data, suggesting methods to mitigate these limitations. Lastly, Dr. Elena Losina et al. review the uses and misuses of large databases for cost-effectiveness research, detailing methods for careful economic evaluations.
Modeling Proppant Transport in Perforated Casing Based on Surface Testing
Authors: Kolle J. J. , Mueller A. C. , Baumgartner S. , Cuthill D. 
Published: October 2022

Summary
The results of a series of proppant transport surface tests (PTSTs) were used in conjunction with Eulerian multiphase-computational fluid dynamics (EMP-CFD) modeling to develop an engineering model of proppant distribution. The PTSTs were carried out to evaluate proppant placement through perforated casing. In these tests, sand slurry was pumped at realistically high flow rates through perforated casing, and the distribution of sand and slurry from each perforation cluster was observed. The tests show that gravitational settling in horizontal casing, proppant slip past perforations, and the viscoelastic properties of slickwater fluids strongly affect the distribution of proppant from the heel to the toe of the completion. The EMP-CFD modeling was used to estimate the gravitational settling of sand in fully developed turbulent slurry flow in horizontal casing as a function of casing velocity. A survey of 36 calculations was carried out to generate tables of sand concentration in a cross section through the casing as a function of flow rate and particle size. A single-phase CFD analysis showed how sand exiting each perforation is taken from a limited ingestion area, which is proportional to the ratio of flow through the perforation to total flow in the casing. A detailed EMP-CFD analysis of flow through single perforations showed how sand slips past the perforation. The results of 28 EMP-CFD calculations provided slip factors as a function of particle size, casing flow velocity, and perforation flow velocity in straight and angled perforations.
The EMP-CFD settling tables and a parameterization of the slip factors were integrated into an engineering model. The model predicts the distribution of slurry and sand through each perforation based on the proppant size, perforation phase angle, and pump rate. The engineering model was used to predict the sand distributions observed in the PTSTs. The PTSTs were conducted with a range of sand sizes and with friction-reducing (FR) polymer additives, while the EMP-CFD analysis assumed water. A weight factor is introduced in the settling model to account for the increased dispersion of sand in water with FR and to match the observed sand distributions in the PTSTs. The observed slip of 100 and 40/70 mesh sand is consistent with the EMP-CFD calculations in water. The model reflects the PTST observations that fine sand is distributed relatively uniformly throughout the length of a perforated completion, while coarser sand tends to slip past the heel perforations and concentrate at the bottom toward the toe of the completion.
Comparative analysis and epidemiological study of SARS-CoV-2 in first wave among different states of India
Authors: Kaushik Rakesh , Nikita  , Lugani Yogita , Rishabh  , Gururaj K. , Lata Suman , Pandey Ishan , Singh Shoorvir 
Published: October 2022

Abstract
Severe Acute Respiratory Syndrome Corona Virus-2 (SARS-CoV-2) has now spread worldwide, and various governments are attempting to control the disease's spread to overcome the global health crisis. Data from 28 Indian states and 8 Union Territories (UTs) provide a detailed look at the transmission pathways and case fatality rate (CFR) of the SARS-CoV-2. Among the global data, India was found to be the third country with the highest mortality cases of 157K, and Maharashtra was having the most higher number of mortality cases followed by Tamil Nadu and others. The percent distribution of CFR calculated in each geographical zone of India i.e. Central, Eastern, North Eastern and Northern, Southern and Western zone were 17%, 14%, 7%, 22%, 12%, and 28%, respectively. Furthermore, the CFR was calculated for every month using a standard formula. The CFR was significantly (P<0.01) higher in period II comprising April to June of the year 2020. CFR was significantly different (P<0.01) depending on the month. Moreover, CFR was compared in different zones in India, western zone showed the highest CFR as compared to other zones. The epidemiology of SARS-CoV-2 was evaluated in patients of various ages and co-morbidities. Patients >21 years had the highest age-specific positivity rate. The prevalence of SARS-CoV-2 patients in acute and chronic disease was 12.87 and 87.13 percent, respectively. Thus, this analytical epidemiological study serves specifically in establishing a relationship between SARS-CoV-2 infection and other precipitating factors causing morbidity and mortality during the given time frame in the first wave, in the year 2020.
A Reactive Path Relinking algorithm for solving the Bi-objective p-Median and p-Dispersion problem
Authors: Lozano-Osorio Isaac , Sanchez-Oro Jesus , Lopez-Sanchez Ana D , Duarte Abraham 
Published: October 2022

Abstract
This paper deals with an interesting facility location problem known as the Bi-objective p -Median and p -Dispersion problem ( BpMD problem). The BpMD problem seeks to locate p facilities to service a set of n demand points and the goal is to minimize the total distance between facilities and demand points and, simultaneously, maximize the minimum distance between all pairs of hosted facilities. The problem is addressed with a novel Path Relinking approach, called Reactive Path Relinking, which hybridizes two of the most extended Path Relinking variants: Interior Path Relinking and Exterior Path Relinking. Additionally, the proposal is adapted to a multi-objective perspective for finding a good approximation of the Pareto front. Computational results prove the superiority of the proposed algorithm over the best procedures found in the
Childhood Maltreatment and Parental Marital Satisfaction: The Roles of Depression and Anxiety
Authors: Chen Chen 
Published: October 2022

Abstract
Background: Although previous studies have explored the relationships between childhood maltreatment and marital satisfaction, the pathways of these two variables are still unclear, particularly in parents with preschool-aged children. The current study attempts to verify the relationships between childhood maltreatment and parental marital satisfaction, and to explore the roles of depression and anxiety in those relationships.
Methods: Data were collected from 855 parents who have preschool-aged children with questionnaires, and mediation analysis was conducted to do the data analysis.
Results: The results showed that childhood maltreatment negatively predicted with parental marital satisfaction, and depression and anxiety serially mediated those relationships. Findings suggest that childhood maltreatment not only have a direct effect on parental marital satisfaction, but also have an indirect effect on parental marital satisfaction via depression and anxiety.
Conclusions: Increasing the levels of mental health should be applied in interventions to break the relationships between childhood maltreatment and marital satisfaction under the Chinese cultural context.
Identification of sediment phosphorus release zones and its management in tropical hyper-eutrophic reservoir
Authors: Velu Sudha , Kanniperumal Ambujam Neelakantapillai 
Published: October 2022

Abstract
The water quality of the Krishnagiri Reservoir is deteriorating rapidly due to the release of high concentration of soluble reactive phosphorus (SRP) from the bottom sediments and consequent eutrophication in the reservoir. The main aim of this experimental study was to investigate the potential release rate of phosphorus from four different zones includes Riverine- R, Transition-Shallow - T (S), Transition-Deep - T (D), and Lacustrine zone in the reservoir and to find out the efficiency of oxygen to control over the release of phosphorus from sediments. Sediment samples were collected from four different zones of Krishnagiri Reservoir and the experimental study was conducted in the laboratory. This present study has identified that the Lacustrine zone of the Krishnagiri reservoir has got the high potential to release phosphorus (125.5 mg m-2 d-1). In addition the study found that the supply of oxygen to the sediments collected from the Transition-D zone during the summer season showed a significant control over phosphorus release and enhanced the sedimentation rate of phosphorus up to -2.4 mg m-2 d-1. This site-specific experimental study has identified that oxygen can efficiently manage the release of phosphorus from bottom sediment. Hence, aeration is potentially a promising method for the reduction of phosphorus release from the bottom sediments and better management of hyper-eutrophic condition in the Krishnagiri Reservoir.
Analysis of the characteristics of major pollutants discharged from wastewater in China’s provinces
Authors: Liu Panliang , Liu Hao , Wang Jinxiang , Chang Guohua 
Published: October 2022

Abstract

In recent years, the discharge of major pollutants in China's wastewater has shown a downward trend, but it is still at a high level. Based on data collected from 31 provinces in China from 2011 to 2020 (except 2018), the entropy method was used to evaluate and analyze the discharge of major pollutants in wastewater in China's provinces. The results showed that the emission of COD, ammonia nitrogen (NH3), total nitrogen (TN) and total phosphorus (TP) decreased by 27.57%, 79.87%, 59.27% and 61.25%, respectively, due to the environmental protection plan of the “12th” and “13th Five-Year Plan”. In terms of regional emission differences, the Northwest region was the lowest compared with other regions, accounting for 4.02%-6.92% of the national pollutant emissions, and the Central China region was the highest, accounting for 20.52%-27.06% of the national pollutant emissions. The average value of pollutant emissions per unit of GDP was decreasing year by year on the whole, but Guangxi and Tibet show a trend of first decreasing and then increasing. Correlation analysis shows that TN and TP were significantly different at the 0.01 level, and TN and TP were the main pollutants in the provincial wastewater discharge in China. Through clustering and MDS analysis, Beijing and Shanghai have been performing quite well in controlling water pollution discharges, while the two provinces of Tibet and Guangxi need to continue their efforts in water pollution control.
A Collaborative Robotic Platform for Sensor-Aware Fibula Osteotomies in Mandibular Reconstruction Surgery
Authors: Hu Junlei , Liu Jiannan , Guo Yan , Cao Zhenggang , Chen Xiaojun , Zhang Chenping 
Published: October 2022

Abstract
Fibula osteotomy needs to be performed precisely and safely in mandibular reconstruction with free fibula flap (FFF). However, current clinical methods, such as template-guided osteotomy, have potential for damage to fibular vessels. To address the challenge, this paper introduces the development of the surgical robot for fibula osteotomies in mandibular reconstruction surgery and propose an algorithm for sensor-aware hybrid force-motion control for safe osteotomy, which includes three parts: osteotomy motion modeling from surgeons’ demonstrations, Dynamic-system-based admittance control and osteotomy sawed-through detection. As a result, the average linear variation of the osteotomized segments was 1.08 ± 0.41 mm, and the average angular variation was 1.32 ± 0.65◦ . The threshold of osteotomy sawed-through detection is 0.5 at which the average offset is 0.5mm. In conclusion, with the assistance of surgical robot for mandibular reconstruction, surgeons can perform fibula osteotomy precisely and safely.
Deformation Measurement and Simulation of Ti-6Al-4V Blades Induced by Shot Peening Process
Authors: Xu Kunhao , Wang Jingchen , Gao Yukui , Yang Fan , Pan yongdong 
Published: October 2022

Abstract
The shape and deformation of the blades play important roles in the aerodynamic performance of aeroengines, which results from the plastic deformation and the residual stresses after complex manufacturing processes, especially the shot peening. However, few studies were focused on the detailed strategies of the shot peening on the complex profile and the superposition effects of residual stresses during the entire manufacturing processes. In this paper, based on the concept of eigenstrains, we investigated the effect of shot peening on the residual stress and deformation of the blade by combining the experimental measurement and the local-global simulation. The results show that the initial residual stresses induced by the previous milling process could be neglected. After the shot peening, the blade has the largest deformation amount if considering the initial residual stresses during milling with large scale material removal, when compared with no initial residual stresses and initial residual stresses after dynamic milling of blades. Furthermore, the In-out sequence of shot peening results in the smallest deformation, and the pre-deformation of the blade can effectively offset this deformation. Finally, the shot peening strength should not be too high in practical blade manufacturing when the thickness is too thin, which may be a great threat to the reliability and safety of blades.
Mendelian randomization study updates the effect of hypertension on the risk of primary open-angle glaucoma
Authors: Chen Qing , He Jian , Yang Shuting , lian lili , Wang Zhenzhen , Zhang Shuwen , Le Zhenmin , Huang Binge , Zheng Qinxiang , Ye Cong , Ren Yueping 
Published: October 2022

AbstractObjectives:To investigate the causal association between hypertension and primary open-angle glaucoma (POAG).Methods:The hypertension-associated genome-wide association study (GWAS) was from UK biobank (UKB), involving 463010 participants. The GWAS of POAG is obtained from FinnGene project involving 4433 cases and 210201 controls. All participants were of European ancestry. The inverse-variance weighted (IVW) method was used as the primary analysis method to estimate the causality of hypertension on POAG. Meanwhile, MR Egger, weighted median, Weighted Median estimation, calculation of Cochran Q statistics, MR-Egger intercept test, MR-PRESSO global test and leave-one-out analysis were performed to verify the efficiency and consistency of the results.Results:A total of 57 hypertension related single-nucleotide polymorphisms (SNPs) were strongly associated with POAG after excluding potential confounders (old age, diabetes, myopia) and harmonizing the variants. IVW results showed that the incidence of POAG in patients with hypertension was 5.372 times higher than that in the control group (OR: 6.372, 95% CI: 1.824-22.262, P = 0.004). The results of Weighted median (OR: 9.707, P = 0.017), Maximum likelihood (OR: 6.642, P = 0.003), Penalised weighted median (OR: 9.696, P = 0.013) verified the casual association between hypertension and POAG. And the results of heterogeneity analysis, egger intercept and MR-PRESSO global test further confirmed the reliability of the findings.Conclusions:A causal association was suggested between genetically increased hypertension and higher risk of POAG. Long-term cohort studies are expected to verify the impact of hypertension on POAG.