bluuebunny/crossref_metadata_2025_split huggingface dataset:
2021 John N. Insall Award: Aspirin is effective in preventing propagation of infrapopliteal deep venous thrombosis following total knee arthroplasty
Authors: Omari Ali M. , Parcells Bertrand W. , Levine Harlan B. , Seidenstein Ari , Parvizi Javad , Klein Gregg R. 
Published: May 2021

AimsThe optimal management of an infrapopliteal deep venous thrombosis (IDVT) following total knee arthroplasty (TKA) remains unknown. The risk of DVT propagation and symptom progression must be balanced against potential haemorrhagic complications associated with administration of anticoagulation therapy. The current study reports on a cohort of patients diagnosed with IDVT following TKA who were treated with aspirin, followed closely for development of symptoms, and scanned with ultrasound to determine resolution of IDVT.MethodsAmong a cohort of 5,078 patients undergoing TKA, 532 patients (695 TKAs, 12.6%) developed an IDVT between 1 January 2014 to 31 December 2019 at a single institution, as diagnosed using Doppler ultrasound at the first postoperative visit. Of the entire cohort of 532 patients with IDVT, 91.4% (486/532) were treated with aspirin (325 mg twice daily) and followed closely. Repeat lower limb ultrasound was performed four weeks later to evaluate the status of IDVT.ResultsFollow-up Doppler ultrasound was performed on 459/486 (94.4%) patients and demonstrated resolution of IDVT in 445/459 cases (96.9%). Doppler diagnosed propagation of IDVT to the popliteal vein had occurred in 10/459 (2.2%) cases. One patient with an IDVT developed a pulmonary embolus six weeks postoperatively.ConclusionThe results of this study demonstrate a low rate of IDVT propagation in patients managed with aspirin. Additionally, no significant bleeding episodes, wound-related complications, or other adverse events were noted from aspirin therapy. Cite this article: Bone Joint J 2021;103-B(6 Supple A):18–22.
Pain associated with cemented and uncemented long-stemmed tibial components in revision total knee arthroplasty
Authors: Larson Darin J. , Rosenberg John H. , Lawlor Maxwell A. , Garvin Kevin L. , Hartman Curtis W. , Lyden Elizabeth , Konigsberg Beau S. 
Published: May 2021

Aims Stemmed tibial components are frequently used in revision total knee arthroplasty (TKA). The purpose of this study was to evaluate patient satisfaction, overall pain, and diaphyseal tibial pain in patients who underwent revision TKA with cemented or uncemented stemmed tibial components. Methods This is a retrospective cohort study involving 110 patients with revision TKA with cemented versus uncemented stemmed tibial components. Patients who underwent revision TKA with stemmed tibial components over a 15-year period at a single institution with at least two-year follow-up were assessed. Pain was evaluated through postal surveys. There were 63 patients with cemented tibial stems and 47 with uncemented stems. Radiographs and Knee Society Scores were used to evaluate for objective findings associated with pain or patient dissatisfaction. Postal surveys were analyzed using Fisher’s exact test and the independent-samples t-test. Logistic regression was used to adjust for age, sex, and preoperative bone loss. Results No statistically significant differences in stem length, operative side, or indications for revision were found between the two cohorts. Tibial pain at the end of the stem was present in 25.3% (16/63) of cemented stems and 25.5% (12/47) of uncemented stems (p = 1.000); 74.6% (47/63) of cemented patients and 78.7% (37/47) of uncemented patients were satisfied following revision TKA (p = 0.657). Conclusion There were no differences in patient satisfaction, overall pain, and diaphyseal tibial pain in cemented and uncemented stemmed tibial components in revision TKA. Patient factors, rather than implant selection and surgical technique, likely play a large role in the presence of postoperative pain. Stemmed tibial components have been shown to be a possible source of pain in revision TKA. There is no difference in patient satisfaction or postoperative pain with cemented or uncemented stemmed tibial components in revision TKA. Cite this article: Bone Joint J 2021;103-B(6 Supple A):165–170.
Additional distal femoral resection increases mid-flexion coronal laxity in posterior-stabilized total knee arthroplasty with flexion contracture
Authors: Chalmers Brian P. , Elmasry Shady S. , Kahlenberg Cynthia A. , Mayman David J. , Wright Timothy M. , Westrich Geoffrey H. , Imhauser Carl W. , Sculco Peter K. , Cross Michael B. 
Published: May 2021

AimsSurgeons commonly resect additional distal femur during primary total knee arthroplasty (TKA) to correct a flexion contracture, which leads to femoral joint line elevation. There is a paucity of data describing the effect of joint line elevation on mid-flexion stability and knee kinematics. Thus, the goal of this study was to quantify the effect of joint line elevation on mid-flexion laxity.MethodsSix computational knee models with cadaver-specific capsular and collateral ligament properties were implanted with a posterior-stabilized (PS) TKA. A 10° flexion contracture was created in each model to simulate a capsular contracture. Distal femoral resections of + 2 mm and + 4 mm were then simulated for each knee. The knee models were then extended under a standard moment. Subsequently, varus and valgus moments of 10 Nm were applied as the knee was flexed from 0° to 90° at baseline and repeated after each of the two distal resections. Coronal laxity (the sum of varus and valgus angulation with respective maximum moments) was measured throughout flexion.ResultsWith + 2 mm resection at 30° and 45° of flexion, mean coronal laxity increased by a mean of 3.1° (SD 0.18°) (p < 0.001) and 2.7° (SD 0.30°) (p < 0.001), respectively. With + 4 mm resection at 30° and 45° of flexion, mean coronal laxity increased by 6.5° (SD 0.56°) (p < 0.001) and 5.5° (SD 0.72°) (p < 0.001), respectively. Maximum increased coronal laxity for a + 4 mm resection occurred at a mean 15.7° (11° to 33°) of flexion with a mean increase of 7.8° (SD 0.2°) from baseline.ConclusionWith joint line elevation in primary PS TKA, coronal laxity peaks early (about 16°) with a maximum laxity of 8°. Surgeons should restore the joint line if possible; however, if joint line elevation is necessary, we recommend assessment of coronal laxity at 15° to 30° of knee flexion to assess for mid-flexion instability. Further in vivo studies are warranted to understand if this mid-flexion coronal laxity has negative clinical implications. Cite this article: Bone Joint J 2021;103-B(6 Supple A):87–93.
Is it safe to perform elective orthopaedic surgery with high community rates of COVID-19? An observational cohort study
Authors: Dickenson EJ , Jordan RW , Poole C , Shyamalan G , Arbuthnot J , Makrides P , Smith NA 
Published: May 2021

Introduction During the first wave of the COVID-19 pandemic, University Hospitals Birmingham NHS Foundation trust was able to recommence elective orthopaedic surgery using private hospitals procured by the NHS as COVID-19 free ‘green’ sites. We report on the safety of elective orthopaedic surgery with high rates of community transmission. Methods We conducted an observational cohort study on consecutive NHS patients attending three private hospitals between 4 May 2020 and 16 June 2020. Patients attended preoperative assessment, including coronavirus disease (COVID-19) symptom screening, were instructed to self-isolate for 14 days and had a negative COVID-19 swab within 72 hours of surgery. Patient age, American Society of Anesthesiologists (ASA) grade, body mass index, surgery performed, type of anaesthetic and length of stay were collected. Our primary outcome was a positive COVID-19 swab, secondary outcomes were COVID-19 symptoms, readmission, surgical complications and mortality. Results Between 4 May 2020 and 16 June 2020, 191 patients were admitted to three private hospitals for elective surgery; 121 (67%) patients underwent general or regional anaesthetic, 179 patients were ASA grades 1 or 2 (94%) and 12 (6%) were ASA 3. In total, 187 (98%) patients were successfully contacted at 30 days postoperative and no COVID-19 symptoms, positive COVID-19 swabs or mortality or were recorded. One patient was readmitted following a pulmonary embolism and two patients were treated as outpatients for a deep vein thrombosis and a superficial infection. Conclusion With ‘green pathways’ elective orthopaedic surgery can safely be performed while rates of COVID-19 in the community are high.
Segmentation of specialised and non-specialised work as a model for dealing with rising demand for paediatric surgical services
Authors: Davidson JR , Yardley IE 
Published: May 2021

Introduction Shifts in the landscape of surgical care provision have resulted in a rise in demand for specialist paediatric surgery services. Here we describe a model of a single paediatric surgery service delivering elective surgery across two sites, a specialist children’s hospital and an inner-city district general hospital. This model has allowed for a management of increased demand while maintaining key quality indicators within national standards. Materials and methods In a single specialist paediatric surgical service working at two sites (specialist and non-specialist), service demand was evaluated by number of referrals and waiting list additions and removals over an eight-year period (2011–2018). Daycase rate, 30-day readmission, and 12-month reoperation for three commonly performed general surgery of childhood procedures (umbilical hernia repair, Inguinal herniotomy, orchidopexy) are reported. NHS Getting it Right First Time data are used to allow comparison with national standards. Results Referrals to the service increased 2.5-fold (955 in 2011/12 compared with 2,419 in 2017/18) and waiting list additions increased 1.4-fold (585 compared with 840), net additions to the waiting list indicate that demand was met. Readmission and reoperation rates met or exceeded national standards. Discussion This model allows for a high quality of care to be provided with acceptable daycase rates and low readmission and reoperation rates. We commend this model to other specialist paediatric surgical centres experiencing increasing demand on their services
Concepções Metodológicas da Educação Física Inclusiva / Methodological Conceptions of Inclusive Physical Education
Authors: Lopes Edinildo Nunes , Miguel Joelson Rodrigues 
Published: May 2021

Resumo: É cientificamente comprovada a importância das práticas de atividades físicas e seus inúmeros benefícios. Ela é fundamental para o aumento da qualidade de vida, visto que reduz os riscos de desenvolvimento de doenças e ajuda a manter o corpo saudável. A presente pesquisa discute as concepções metodológicas da educação física inclusiva. Parte do princípio de que todo sujeito é dotado de conhecimento e por isso precisa ser considerado com indivíduo de potencialidades e com expertises constituintes do seu fazer vivido. Estamos num momento de mudanças e de um repensar as possibilidades das pessoas com deficiência, extraindo-as de uma ótica de segregação e exclusão, passando a uma visão de maior possibilidade, livre de preconceitos. Concluiu-se que as estratégias pedagógicas inclusivas, devem buscar atividades de aprendizagens nas quais todos possam participar da proposta, com respeito às peculiaridades de cada aluno. Investigações sobre a identificação de novas práticas pedagógicas inclusivas, bem como metodologias que possam ajudar nesse processo, é uma grande contribuição, tanto para as comunidades escolares mais específicas, quanto para a sociedade de uma maneira geral.
Impacto Ambiental e Gerenciamento de Resíduos Sólidos Advindos da Construção Civil no Brasil: Uma Revisão de Literatura / Environmental Impact and Solid Waste Management Arising from Civil Construction in Brazil: A Literature Review
Authors: Gomes Carla Pinheiro , Leite Guilherme Urquisa , Sena Rafael Wandson Rocha , Andrade Elysson Marcks Gonçalves de 
Published: May 2021

Resumo: A construção civil é um setor que utiliza uma boa parte dos recursos naturais disponíveis, como, por exemplo, os produtos de extração mineral. Em contrapartida, está atrelada aos elevados índices de impactos ambientais negativos, como pela produção desenfreada de Resíduos de Construção Civil (RCCs). Estes resíduos, quando não possuem uma destinação adequada, podem trazer consequências permanentes para o meio ambiente, sendo necessário investigar a qualidade e abrangência dos serviços de gestão e de gerenciamento de resíduos sólidos gerados nas obras civis. Logo, este estudo tem por objetivo realizar uma revisão bibliográfica da literatura quanto o impacto ambiental e o gerenciamento de resíduos sólidos gerados na construção civil. Trata-se de uma revisão integrativa da literatura, de abordagem qualitativa, com procedimento técnico de pesquisa bibliográfica sobre impacto ambiental e gerenciamento de resíduos sólidos na construção civil. Foram aplicadas na base de dados da Scientific Eletronic Library Online (SCIELO) as palavras-chave “Construção civil” AND “Impacto ambiental” OR “Reciclagem de resíduos” OR “recursos ambientais”, para identificar todos os artigos publicados no eixo temático proposto, publicados entre 2011 e 2021, em inglês ou português. Dentre os tipos de resíduos gerados pelas atividades da construção civil, os mais desperdiçados, segundo alguns autores, são gesso e argamassa. Também são referenciados materiais cerâmicos, argamassa, bem como seus componentes, compreendendo assim 90% dos resíduos que são gerados em obras. Contudo, mediante a produção excessiva destes materiais, é recorrente a identificação de que a demanda foi superior à necessidade, implicando, assim em descarte dos resíduos, gerando, ainda, prejuízo financeiro. Quanto ao gerenciamento de resíduos sólidos na construção civil, foi possível identificar que este setor é um dos que mais geram resíduos sólidos, evidenciando uma urgência de adoção de medidas que possam mitigar os impactos negativos provenientes da produção de materiais que são descartados no meio ambiente.
Learning from error episodes in dialogue-videos: The influence of prior knowledge
Authors: Ding Lu , Cooper Katelyn , Stephens Michelle , Chi Michelene , Brownell Sara 
Published: May 2021

In laboratory study environments, dialogue-videos, or videos of a tutor and a tutee solving problems together, have been shown to more effectively improve student learning than monologue-videos, or videos of tutors solving problems alone. Yet, few studies have replicated these findings in the context of authentic university classrooms. Here, we investigate the impact of dialogue-videos, and more specifically the effect of errors made by tutees in dialogue-videos, on student learning in the context of an undergraduate biology course. To understand why, we investigated students’ effort spent on watching videos, perceived influence of dialogue-videos, and worksheet completion rates. We found that higher-performing students perceived that they used the dialogue-videos to review content. We also found that higher-performing, but not lower-performing, students learned better from dialogue videos where tutees made errors. We also discuss the complexities of replicating laboratory studies in the classroom and implications of our findings.
Implications for practice or policy:

Tutee errors can be intentionally included in dialogue-videos to promote student learning.
When students lack the necessary prior knowledge, monologue-videos may be more effective in presenting the course content.
When using dialogue-videos, instructors can encourage students to collaborate to resolve any confusion in time to maximise the benefit of dialogue-videos in teaching and learning.
Optimising Poisson bridge constructions for variance reduction methods
Authors: Beentjes Casper H. L. 
Published: May 2021

Abstract
In this paper we discuss different Monte Carlo (MC) approaches to generate unit-rate Poisson processes and provide an analysis of Poisson bridge constructions, which form the discrete analogue of the well-known Brownian bridge construction for a Wiener process. One of the main advantages of these Poisson bridge constructions is that they, like the Brownian bridge, can be effectively combined with variance reduction techniques. In particular, we show here, in practice and proof, how we can achieve orders of magnitude efficiency improvement over standard MC approaches when generating unit-rate Poisson processes via a synthesis of antithetic sampling and Poisson bridge constructions. At the same time we provide practical guidance as to how to implement and tune Poisson bridge methods to achieve, in a mean sense, (near) optimal performance.
The crystal structure of 4,5-diiodo-1,3-dimesityl-1H-1,2,3-triazol-3-ium hexafluoridoantimonate(V), C20H22F6I2N3Sb
Authors: Xu Xingyu , Qiu Ping 
Published: May 2021

Abstract
C20H22F6I2N3Sb, triclinic,

P

1
‾

$P\bar{1}$

(no. 2), a = 10.2268(10) Å, b = 10.8850(9) Å, c = 12.1413(10) Å, α = 101.810(2)°, β = 90.465(3)°, γ = 103.194(3)°, V = 1285.9(2) Å3, Z = 2, R

gt
(F) = 0.0291, wR

ref
(F
2) = 0.0717, T = 200 K.
The frontiers of functionalized graphene-based nanocomposites as chemical sensors
Authors: Nurazzi Norizan M. , Abdullah Norli , Demon Siti Z. N. , Halim Norhana A. , Azmi Ahmad F. M. , Knight Victor F. , Mohamad Imran S. 
Published: May 2021

Abstract
Graphene is a single-atom-thick sheet of sp2 hybridized carbon atoms that are packed in a hexagonal honeycomb crystalline structure. This promising structure has endowed graphene with advantages in electrical, thermal, and mechanical properties such as room-temperature quantum Hall effect, long-range ballistic transport with around 10 times higher electron mobility than in Si and thermal conductivity in the order of 5,000 W/mK, and high electron mobility at room temperature (250,000 cm2/V s). Another promising characteristic of graphene is large surface area (2,630 m2/g) which has emerged so far with its utilization as novel electronic devices especially for ultrasensitive chemical sensor and reinforcement for the structural component applications. The application of graphene is challenged by concerns of synthesis techniques, and the modifications involved to improve the usability of graphene have attracted extensive attention. Therefore, in this review, the research progress conducted in the previous decades with graphene and its derivatives for chemical detection and the novelty in performance enhancement of the chemical sensor towards the specific gases and their mechanism have been reviewed. The challenges faced by the current graphene-based sensors along with some of the probable solutions and their future improvements are also being included.
Effect of in situ graphene-doped nano-CeO2 on microstructure and electrical contact properties of Cu30Cr10W contacts
Authors: Liang Shengli , Liu Shuang , Zhang Yi , Zhou Meng , Tian Baohong , Geng Yongfeng , Liu Yong , Jia Yanlin , Li Xu , Volinsky Alex A. 
Published: May 2021

Abstract
The graphene oxide (GO)-doped nano-CeO2 was introduced into Cu30Cr10W electrical contact composites by ball milling dispersion, freeze-drying, and spark plasma sintering, resulting in excellent mechanical strength and high arc erosion resistance. The effects of GO and CeO2 on the microstructure and properties of the composites were investigated. The arc erosion behavior was investigated by the JF04C electrical contact testing apparatus. Consequently, the uniform distribution of CeO2 nanoparticles hinders the movement of dislocations, GO transformed into reduced graphene oxide (rGO) during high-temperature sintering, and the in situ formation of Cr3C2 between trace carbon atoms and chromium particles at the C–Cu interface, which enhanced the interface combination. Compared with Cu30Cr10W composites, the tensile strength of the two composites was increased by 47 and 36% by importing GO and nano-CeO2, respectively. Finally, electrode material migrated from the cathode to the anode, and the rGO delayed the formation of pits and sharp bumps on the contact surface of the electrode and inhibited diffusion of molten metal; when compared with Cu30Cr10W, the GO/CeO2–Cu30Cr10W composites have better welding force.
ПЕРШІ ДАНІ ЩОДО БІОЛОГІЧНИХ ОСОБЛИВОСТЕЙ AGRILUS PLANIPENNIS FAIRMAIRE, 1888 (COLEOPTERA: BUPRESTIDAE) НА ТЕРИТОРІЇ УКРАЇНИ
Authors: Kucheryavenko T. V. , Skrylnik Yu. Ye. , Davydenko K. V. , Zinchenko O. V. , Meshkova V. L. 
Published: May 2021

Ясенова смарагдова вузькотіла златка (ЯСВЗ) проникла на територію України не пізніше 2018 р. і на кінець вегетаційного сезону 2020 р. поширилася у чотирьох районах Луганської області. Надає перевагу ясену зеленому, але іноді заселяє також ясен звичайний. Визначені максимальні значення довжини (35 см) та ширини (4,7 мм) личинкових ходів, глибина розміщення личинок у деревині під час зимівлі (15 мм) та лялечкової камери (5,7 мм), розміри лялечкових камер (8×2,8–16×4 мм) і льотних отворів (2,4×2–3,6×2,1 мм). Відпад личинок ЯСВЗ (3,4–5,2 % виявлених ходів) спричиняють переважно птахи. Із заселених гілок виведено паразитоїда, за попередніми даними, це — Spathius sp. (Braconidae). Передлялечки ЯСВЗ успішно завершують розвиток у відрізках гілок із відносною вологістю деревини понад 30 %. Експериментально доведено залежність темпів зниження відносної вологості лубу від її початкового рівня та від діаметра гілок. Підтверджено розшарування популяцій ЯСЗВ на когорти за сезонним розвитком. У травні–червні зростала частка личинок старших віків і передлялечок, у липні–серпні — частка личинок молодших віків, у жовтні–березні когорти представлені майже однаково.
Who determines the final version? The roles of translators, language revisers and editors in the publishing of a literary translation
Authors: Zlatnar Moe Marija , Južnič Tamara Mikolič , Žigon Tanja 
Published: May 2021

AbstractThe article explores the interaction among three key figures in the process of publication of a literary translation into a language of low diffusion: the translator, the editor and the language reviser (the latter specific to the Slovene situation). The aim of the research is to identify who has the strongest position of power in the decision-making process of the production of a literary translation, especially when conflict arises. Information was gathered from the three groups with questionnaires, interviews and an analysis of public statements. The questions focused on the selection of the translator and language reviser, the translation process, the revision process and conflict resolution. A cross-comparison of the results indicates that despite the automatic central position of the editors, they tend to yield their decision-making power to translators, while language revisers have a more subservient, consulting role.