bluuebunny/crossref_metadata_2025_split huggingface dataset:
Outcome of TRAP Sequence Treated in the First Trimester – A Ten-Year Single-Center Experience
Authors: Weber Eva Christin , Recker Florian , Gottschalk Ingo , Strizek Brigitte , Geipel Annegret , Gembruch Ulrich , Berg Christoph 
Published: June 2021

Abstract
Purpose To evaluate the outcome of first trimester intervention by intrafetal laser (IFL) in pregnancies complicated by twin reversed arterial perfusion (TRAP).
Materials and Methods For a 10-year study period, all patients with TRAP diagnosed < 14.0 weeks of gestation were retrospectively analyzed for intrauterine course and outcome. Monoamniotic pregnancies were excluded. Patients were offered either intervention by IFL in the first trimester, expectant management, or termination of pregnancy (TOP). Adverse outcome was defined as either intrauterine death (IUD), neonatal death, or preterm birth.
Results In 45 cases TRAP was diagnosed. 17 monoamniotics were excluded. The cohort was divided into two groups according to management. Group A: 24 cases underwent IFL and group B: 4 cases were managed expectantly. No patient opted for TOP. In group A, 70.8 % of pump twins were born alive, including one preterm delivery, and 29.2 % died within four days after the intervention. All 4 expectantly managed cases in group B had an adverse outcome (1 preterm delivery, 3 IUDs < 15.0 weeks). There were no neonatal deaths. In cases treated by IFL, a comparison of survivors and non-survivors identified no significant differences in gestational age at IFL or any of the assessed biometrical and functional parameters. There was a trend towards better outcome in the second half of the study period.
Conclusion IFL in first trimester TRAP sequence is technically feasible but is associated with significant mortality, albeit less than previously reported. No risk stratification is possible using the investigated parameters. However, there seems to be a learning curve.
Arthroscopic Oblique Partial Ulnar Styloid Resection for Ulnar Styloid Impaction Syndrome
Authors: Pääkkönen Markus 
Published: June 2021

Abstract
Background Open or arthroscopic partial resection of the elongated ulnar styloid is the surgical treatment of choice for ulnar styloid impaction syndrome.
Case Description A patient with a severely elongated processus styloideus ulnae (PSU) with a chronic impaction of the distal-radial margin against the triquetrum suffered a traumatic triangular fibrocartilage complex (TFCC) Palmer 1B rupture and DRUJ instability. The length of the PSU was 9 mm. After failed conservative treatment, a partial oblique arthroscopic resection of the PSU and simultaneous TFCC reinsertion were performed with uneventful recovery.
Literature Review Arthroscopic resection has emerged as an alternative to the traditional open PSU resection for the treatment of styloid impaction syndrome. A transverse resection is described as the treatment of choice. Regarding the extent of resection subtotal ligament sparing resection or resection to the lower margin have been suggested.
Clinical Relevance Surgical planning of PSU resection should take into consideration the anatomy of the impingement. The extent of resection should be planned individually, and sometimes an oblique resection may be the preferred option.
Robotic Arm-Assisted versus Manual Total Knee Arthroplasty: A Propensity Score-Matched Analysis
Authors: Samuel Linsen T. , Karnuta Jaret M. , Banerjee Aditya , Briskin Isaac , Cantrell William A. , George Joseph W. , Higuera-Rueda Carlos A. , Kamath Atul F. , Khlopas Anton , Klika Alison , Krebs Viktor E. , Mesko Nathan W. , Mont Michael A. , Murray Trevor G. , Piuzzi Nicolas S. , Shah Paras , Stearns Kim , Sultan Assem A. , Molloy Robert M. 
Published: June 2021

AbstractThe purpose of this study was to compare (1) operative time, (2) in-hospital pain scores, (3) opioid medication use, (4) length of stay (LOS), (5) discharge disposition at 90-day postoperative, (6) range of motion (ROM), (7) number of physical therapy (PT) visits, (8) emergency department (ED) visits, (9) readmissions, (10) reoperations, (11) complications, and (12) 1-year patient-reported outcome measures (PROMs) in propensity matched patient cohorts who underwent robotic arm-assisted (RA) versus manual total knee arthroplasty (TKA). Using a prospectively collected institutional database, patients who underwent RA- and manual TKA were the nearest neighbor propensity score matched 3:1 (255 manual TKA:85 RA-TKA), accounting for various preoperative characteristics. Data were compared using analysis of variance (ANOVA), Kruskal–Wallis, Pearson's Chi-squared, and Fisher's exact tests, when appropriate. Postoperative pain scores, opioid use, ED visits, readmissions, and 1-year PROMs were similar between the cohorts. Manual TKA patients achieved higher maximum flexion ROM (120.3 ± 9.9 versus 117.8 ± 10.2, p = 0.043) with no statistical differences in other ROM parameters. Manual TKA had shorter operative time (105 vs.113 minutes, p < 0.001), and fewer PT visits (median [interquartile range] = 10.0 [8.0–13.0] vs. 11.5 [9.5–15.5] visits, p = 0.014). RA-TKA had shorter LOS (0.48 ± 0.59 vs.1.2 ± 0.59 days, p < 0.001) and higher proportion of home discharges (p < 0.001). RA-TKA and manual TKA had similar postoperative complications and 1-year PROMs. Although RA-TKA patients had longer operative times, they had shorter LOS and higher propensity for home discharge. In an era of value-based care models and the steady shift to outpatient TKA, these trends need to be explored further. Long-term and randomized controlled studies may help determine potential added value of RA-TKA versus manual TKA. This study reflects level of evidence III.
During Arthroscopic Repair of Medial Meniscal Tears: Do Not Be Afraid to Perform “Pie Crust” Technique
Authors: Arıcan Gökhun , Ercan Niyazi , Atmaca Emre , İltar Serkan , Alemdaroğlu Kadir B. 
Published: June 2021

AbstractIn the absence of effective long-term repair of meniscal injuries, damage to the knee may lead to the development of osteoarthritis. Recent reports have recommended meniscal repair to be undertaken in all cases of meniscal tears. However, the most common complication encountered during repair of the medial meniscus is iatrogenic cartilage and meniscal injury due to its unclear visualization. The aim of this study is to evaluate the long-term clinical and radiological results of the pie-crust (PC) technique performed during the repair of medial meniscal tears. This retrospective study included 86 patients who underwent arthroscopic medial meniscus repair. PC technique was performed if the medial joint width was less than 5 mm. The patient population was divided into two groups as who underwent meniscus repair with PC technique (PC + repair group) or not (repair group). All patients were evaluated clinically (Kujala score, International Knee Documentation Committee (IKDC) subjective score, Lysholm score, and Tegner activity score) and radiologically (medial joint width and valgus laxity angle). When the medial joint width measurements before the PC technique and at the postoperative first and sixth months were compared, it was found to be statistically significant (p < 0.05). However, there was no significant difference between the preoperative and 12-month postoperative joint width measurements (p > 0.05). At the 12-month follow-up, no statistically significant difference was determined for the valgus laxity angle in the PC group compared with preoperative values (p > 0.05). The follow-up Kujala score, IKDC subjective score, Lysholm score, and Tegner activity score were similar between the groups. The clinical scores in both groups were determined to have statistically significant increase at 12-month postoperatively compared with the preoperative values (p < 0.05). The results of this study showed that performing the PC technique prior to medial meniscal tear repair increase the medial joint visualization safely and effectively without permanent valgus laxity.
Concomitant Partial Achilles Tendon Rupture and Lateral Luxation of the Superficial Digital Flexor Muscle Tendon in a Dog
Authors: Dosseray Hélène , Deroy-Bordenave Claire 
Published: June 2021

AbstractThe aim of this study was to report a posttraumatic partial Achilles tendon (AT) rupture associated with lateral luxation of the superficial digital flexor tendon (SDFT) in a Whippet. This article is a brief communication. A Whippet was presented with posttraumatic plantigrade stance and non-load-bearing lameness of the right pelvic limb. The objective findings consisted in partial AT rupture and SDFT lateral luxation. Surgical treatment ensued: tenorrhaphy of the torn tendons and calcaneo-tibial screw insertion for tarsal immobilization, followed by suturing of the SDFT retinaculum. A casting bandage was employed for additional immobilization. Nonetheless, a bandage complication prompted the premature removal of the fixation screw and casting wrap. Complete functional recovery was achieved by the 20th postoperative week. The simultaneous occurrence of SDFT luxation and partial AT tear has not been reported in the literature before. The long-term postoperative functional outcome was highly satisfactory.
Autophagy deficiency modulates microglial lipid homeostasis and aggravates tau pathology and spreading
Authors: Xu Yin , Propson Nicholas E. , Du Shuqi , Xiong Wen , Zheng Hui 
Published: June 2021

Significance
Neurofibrillary tangles composed of misfolded and aggregated tau protein are degraded by the autophagy–lysosomal pathway. Microglia play a central role in immune surveillance and neuroinflammation. Here, we reveal that microglial autophagy critically controls microglial metabolic and immune status and also modulates neuronal tau pathology. Autophagy deficiency induces lipid droplet formation and heightened immune response, and these phenotypes can be rescued by activating the lipid efflux system, thus establishing a mechanistic link between lipid accumulation and neuroinflammation. The development of neurofibrillary tangles closely correlates with dementia in Alzheimer’s disease, and our studies provide support that autophagy augmentation may provide therapeutic benefit through targeting both immune cell function and tau pathology.
More than “Fake News”?
Authors: Rossini Patrícia , Stromer-Galley Jennifer , Korsunska Ania 
Published: June 2021

Abstract
While the debate around the prevalence and potential effects of fake news has received
considerable scholarly attention, less research has focused on how political elites and pundits weaponized fake
news to delegitimize the media. In this study, we examine the rhetoric in 2020 U.S. presidential primary candidates
Facebook advertisements. Our analysis suggests that Republican and Democratic candidates alike attack and demean the news media on
several themes, including castigating them for malicious gatekeeping, for being out of touch with the views of the public, and for
being a bully. Only Trump routinely attacks the news media for trafficking in falsehoods and for colluding with other interests to
attack his candidacy. Our findings highlight the ways that candidates instrumentalize the news media for their own rhetorical
purposes; further constructing the news media as harmful to democracy.
Transient thermal fracture analysis of ferroelectric ceramics under electromechanical loading
Authors: Khatib Omar El , Kuna Meinhard , Kozinov Sergey 
Published: June 2021

Abstract
During their applications, ferroelectric devices are subjected not only to electromechanical loading but also to thermal fields, inducing additional stresses and impairing their functionality. Additionally, internal heat generation can occur by the dissipation of the inelastic work resulting from ferroelectric hysteresis. Moreover, at extreme electromechanical field concentrations like cracks, ferroelectric devices may fail by brittle fracture or fatigue. In the present study, the thermal effects on the fracture behavior of ferroelectric ceramics are investigated. The well-established micromechanical material model for ferroelectric domain switching is enhanced to represent the fully coupled thermo-electro-mechanical behavior. The coupling considers the pyroelectric and thermal strains effects. The internal heat production, which leads to transient temperature fields, is taken into account, as well as the temperature dependency of material parameters. The thermo-electro-mechanical fields at the crack tip are analyzed using a boundary layer approach for small-scale switching conditions. A fully transient heat conduction problem is considered, emphasizing the effect of the driving frequencies on heat generation. The configurational forces concept combined with the thermo-electro-mechanical extension of the J-integral are used to analyze the impact of the different factors on the crack driving energy.
Mexico’s electricity grid and fuel mix: implications of a fifteen-year planning horizon on emissions and air quality
Authors: McDonald-Buller Elena C , McGaughey Gary R , Shah Tejas , Grant John , Kimura Yosuke , Yarwood Greg 
Published: June 2021

Abstract
Energy reform that required amendments to the Mexican Constitution in 2013 and implementing legislation aimed to increase the efficiency, economic competitiveness, and decarbonization of Mexico’s electricity sector. Emissions inventories were developed for the 2016 base year and a capacity development pathway established by Mexico over a 15-year planning horizon to 2031. Between 2016 and 2031, steep declines in generation from fuel oil-fired thermoelectric, turbogas, and coal plants in favor of a buildout of natural gas combined cycle and clean energy technologies were predicted to drive reductions in emissions of sulfur dioxide (SO2), fine particulate matter (PM2.5), carbon dioxide (CO2) and nitrogen oxides (NO
x
) of 68%, 61%, 13% and 7%, respectively, with an increase in carbon monoxide (CO) of 4%. Retirement of fuel oil-fired thermoelectric and coal generation contributed to substantial reductions in 24 h average PM2.5 concentrations in Mexican and U.S. border states even with rising demand. In contrast, little change in maximum daily average eight-hour ozone concentrations was predicted with expansion of natural gas combined cycle generation, which is a source of NO
x
and CO. Mexico’s electricity sector planning process has been highly dynamic since the reform. Insights indicate how changes in national strategies could affect emissions and air quality outcomes.
Physical and Mechanical Properties of Foamed Mixture Lightweight Soil Doped With Bauxite Tailings Slurry
Authors: Ou Xiaoduo , Lyu Zhengfan , Bai Lu , Jiang Jie , Qin Jinxi , Huang Zhongzheng 
Published: June 2021

Abstract
In order to make better use of the BTs slurry with high water content stored in tailings ponds by wet method, foamed mixture lightweight soil (FMLSB) at four wet density were prepared using dry BTs and BTs slurry with different water contents. Their wet density, fluidity, unconfined compressive strength and water absorption were tested through indoor test, and the experimental results were analyzed by microstructure analysis. The results show that the performance of FMLSB improves as the wet density and water content of BTs slurry increase. FMLSB prepared by BTs slurry with 60% water content is poorly fluidity. That means at lower wet density due to the connected internal pores, its strength is significantly reduced and water absorption is significantly increased compared to the dry BTs group. However, with the increase of wet density, the above adverse effects of FMLSB caused by BTs slurry with low water content will decrease; and with the increase in water content of BTs slurry, its internal pore structure is significantly improved, the same as its unconfined compressive strength. When the water content is 100%, its performance is no different from that of dry BTs group. With the increase of wet density, the C-S-H produced by hydration reaction of FMLSB increases, forming a dense skeleton structure together with BTs particles and the unconfined compressive strength increases exponentially. The research results can provide a scientific basis for the direct utilization of high water content BTs slurry in tailings pond.
Risk Assessment of Knowledge Transfer in Green Building Based on ISM-MICMAC
Authors: Li Yuxuan , Guo Mingzhe 
Published: June 2021

Abstract
Green buildings have made a significant contribution to low-carbon and energy-saving. However, green construction projects will face greater risks than traditional construction projects due to their high cost and complex technology. Having important information or knowledge can help the project organization to stifle the risk at the source. This paper intends to improve the efficiency and effectiveness of knowledge transfer by studying the risk assessment in the process of knowledge transfer between project organizations, thereby helping to reduce the risk of green building projects. This paper first explores the influencing factors of knowledge transfer and the interrelationship between the influencing factors by analyzing the existing literature; then uses ISM method and the MICMAC analysis method, to sort out the order and hierarchy of the influencing factors in knowledge transfer, and analyze at the same time their forces of driving and dependences. Then author proposes countermeasures to the risk of knowledge transfer between project organizations. The results show that the two types of risks, low network connection strength and lack of transfer mechanisms, have a greater impact on knowledge transfer, but they are easy to manage. Therefore, construction project managers should identify these factors first and take certain measures to avoid these risks.
Effect of cavity structure on the saving up and dissipation of moisture in loess soil
Authors: Bo Tang , Baowen Yan 
Published: June 2021

Abstract
Technique of loess cavity structure is a kind of technology which can increase the seepage volume of rainfall water and prolong the storage time of water in the soil, but popularization and application of the technology needs theoretical support. This paper uses the method of combining indoor experiment to study the laws of water storage and evaporation dissipation in the loess soil with cavity structure under heavy rain. Results show that, vertical movement of moisture in the soil profile shows as hierarchy, and the cavity layer is the high water-holding-capacity zone; presence of the cavity structure retains more water in the soil body, reduces or prevents the water leakage to the deeper soil, and increases the water storage capacity of the loess soil by 4.7%; cavity structure can reduce the soil evaporation of 12.6%, and significantly inhibits soil evaporation. The study confirms the remarkable function of seepage improved and anti-evaporation of loess cavity structure technology, thus build a solid theoretical basis for the popularization and utilization of it.
Research on The Effectiveness of Trajectory Similarity Measurement Algorithm
Authors: Wu Yanfu 
Published: June 2021

Abstract
Under the background of big data era, massive trajectory data is constantly generated, which contains great value. The analysis and mining of spatiotemporal trajectory data is a research hotspot of spatial data, including trajectory retrieval, trajectory classification etc. In the process of analysis and mining, the similarity measurement between different trajectories is a key problem. Considering the amount of data, computational complexity, noise and other factors, different metrics need to be selected in different situations. In order to understand the performance of different similarity measurement algorithms, this paper selects the Longest Common Sub-Sequence Algorithm (LCSS), Fréchet Distance Algorithm and One Way Distance Algorithm (OWD) among the three kinds of trajectory similarity measurement algorithms and they were used for comparison. Experimental results show that LCSS algorithm can effectively resist the interference of noise points, Fréchet Distance Algorithm has strong robustness, and OWD Algorithm has low time complexity and short execution time.
Development of Intelligent Operation Platform for GIS Combiner Installation
Authors: Jianjun Fang , Zhaoqing Jiang , Yanping Li , Yang Han 
Published: June 2021

Abstract
In order to improve the installation efficiency of GIS combined electrical apparatus and reduce the installation cost, the intelligent operation platform for GIS installation is developed in this paper. The platform adopts the concept of functional modular design, can replace the modular manipulator according to the different types of installation, and is easy to disassemble and assemble. The application of accurate installation and one-time positioning platform can effectively reduce the dependence on large lifting equipment such as cranes and scrapers, avoid the occurrence of bumps and damage to insulation during installation, and improve the installation quality of equipment. Effectively prevent equipment from the defects caused by engineering construction, and ensure power grid operation safety.
Study on the hydration of hard and brittle mudstone and its influence on the wellbore stability
Authors: Chang Chunlai , Cui Jielei , Li Wen , Sun Yubo , Tao Fu , Zhang Huijun 
Published: June 2021

Abstract
The instability of hard and brittle mudstone wellbore in the Xujiahe Formation in the Western Sichuan Depression is widespread, which has led to accidents such as sticking and collapse. In this paper, the Xujiahe Formation in the Western Sichuan Depression is taken as the research object, and the method of indoor experiment and theoretical simulation is used to study the instability phenomenon of the wellbore. The following points of knowledge have been obtained: The clay minerals in the mudstones of the Xujiahe Formation in the Western Sichuan Depression are mainly illite and chlorite (content>90%), with a small amount of illite/montmorillonite mixed layer, and the pore throat radius is between 14.56nm-24.47nm, belonging to the mesoporous type; After the mudstone hydrates, its compressive strength, cohesion, elastic modulus, and tensile strength will continue to decrease with the increase of water, while the Poisson’s ratio will continue to rise; The relationship between the dry core and the wet core can be used to correct the acoustic velocity of the collapsed mudstone section; the nature of the wellbore instability is that the liquid pressure in the wellbore is less than the formation pressure, and the formation pressure exceeds the rock strength, which leads to instability. We use the borehole expansion rate to realize the evaluation of wellbore stability. The research results have guiding significance for the evaluation of the stability of the hard and brittle mudstone wellbore of the Xujiahe Formation in the Western Sichuan Depression, and provide technical support for the next step of drilling safety.
Finite Element Analysis of Prefabricated Concrete Box Structure System on OpenSees software
Authors: Zhang Xiaomeng , Wang Qiaji , Ren Qingying , Liu Wenting , Ding Weilun 
Published: June 2021

Abstract
This paper presents a new type of prefabricated concrete structure system and the corresponding shear wall structure. The finite element analysis of the prefabricated wall base on OpenSees is carried out to analyze its mechanical properties. The rationality and correctness of the finite element analysis are obtained by comparing it with the test hysteresis curve.
Study on land subsidence law of shield tunnel overlying karst
Authors: Kejin Li , Xiudong Li , Jun Wang , LiXun  
Published: June 2021

Abstract
In the process of tunnel construction, underground karst is one of the main causes of ground collapse accidents. Using the GTS/NX finite element software, the numerical analysis of karst with different shapes and locations is carried out, and the law of surface subsidence caused by the karst overlay on the tunnel is obtained, which provides the basis for the deformation of the stratum where the karst cave is located, the prediction of accident, the risk assessment and the formulation of the treatment scheme.