bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nexus free cash flow dan kebijakan dividen
Authors: Nastiti Pambayun Kinasih Yekti 
Published: December 2022

<p>Kebijakan dividen dan determinannya tetap menjadi isu kontroversial dalam literatur keuangan. Tujuan studi ini untuk menguji pengaruh langsung <em>free cash flow</em> terhadap dividen dan pengaruh tidak langsung <em>free cash flow</em> terhadap dividen melalui pertumbuhan perusahaan dan <em>leverage.</em> Sampel studi ini adalah 32 perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia selama periode 2016-2020. Analisis data memanfaatkan regresi data panel <em>fixed effect robustness</em> dengan melibatkan 160 obeservasi. Hasil penelitian menunjukkan bahwa <em>free cash flow</em> terbukti secara signifikan berpengaruh positif terhadap dividen. Lebih lanjut, penelitian ini mampu membuktikan adanya pengaruh <em>free cash flow</em> terhadap <em>leverage</em> yang kemudian dilanjutkan dengan <em>leverage</em> berimplikasi pada pembayaran dividen perusahaan. Namun, pertumbuhan perusahaan tidak terbukti dipengaruhi free cash flow dan juga tidak mempengaruhi dividen sehingga tidak mampu berperan memediasi pengaruh free cash flow terhadap dividen. Penelitian ini secara akademis berkontribusi dalam mengintegrasikan variabel-variabel kunci determinan kebijakan dividen yang selama ini hanya diteliti secara terpisah. Sementara secara praktis, studi ini menyarankan bahwa bagi investor yang berorentasi pada dividen hendaknya mempertimbangkan ketersedian <em>free cash flow</em> dan ratio hutang perusahaan.</p><p><em><span lang="IN">Dividend policy and its determinants remain a controversial issue in the financial literature. This study aims to examine the direct effect of free cash flow on dividends and the indirect impact of free cash flow on dividends through firm growth and leverage. The sample of this study is 32 manufacturing firms listed on the Indonesia Stock Exchange during the 2016-2020 period. The data analysis employs fixed effect robustness panel data regression involving 160 observations. The results study showed that the free cash flow significantly positive affects dividends. Furthermore, this study can prove the effect of free cash flow on leverage and then leverage impacts on company s dividend payments. However, the firm's growth was not proven to be influenced by free cash flow and also did not affect dividends so it was not able to play a role in mediating the effect of free cash flow on dividends. This research academically contributes to integrating the key determinants of dividend policy, which have only been studied separately so far. Practically, this study suggests that dividend-oriented investors should consider the availability of free cash flow and the firm's debt ratio.</span></em></p>
Acervos e contra-acervos: sobre saqueamentos, feitiços e redemoinhos na arte indígena contemporânea
Authors: Fonseca Carolina Ferreira , Castro Laura 
Published: December 2022

O texto desdobra-se da seguinte questão: “Como deslocar as relações entre aura, obra, acervo e museus diante do que o diagrama da arte indígena contemporânea vem redesenhando sobre diagrama da arte contemporânea brasileira?”. A sondagem desta questão é guiada pela imagem de um redemoinho que desenha uma exposição imaginária onde se enredam Glicéria Tupinambá, Daiara Tukano e Patrícia Ferreira “Para Yxapy” e de um Saci- curador, ser encantado que se infiltra na política das imagens, nos bastidores e nas engrenagens dos dispositivos: museu, coleção, exposição e da própria história da arte. O texto é sobre atravessar esse redemoinho, mapear saqueamentos coloniais, revisitar a encenação do moderno e escutar as ressonâncias de processos mobilizados por artistas indígenas contemporâneas a fim de confrontar as relações estreitas entre colonialidade e acervos, apontando para a ideia de contra-acervos e contra- arquivos da arte.
ARCH-COMP22 Category Report: Hybrid Systems Theorem Proving
Authors: Mitsch Stefan , Zhan Bohua , Sheng Huanhuan , Bentkamp Alexander , Jin Xiangyu , Wang Shuling , Foster Simon , Pardillo Laursen Christian , Huerta Y Munive Jonathan Julián 
Published: December 2022

This paper reports on the Hybrid Systems Theorem Proving (HSTP) category in theARCH-COMP Friendly Competition 2022. The characteristic features of the HSTP cate- gory remain as in the previous editions [MST+18, MST+19, MMJ+20], it focuses on flexi- bility of programming languages as structuring principles for hybrid systems, unambiguity and precision of program semantics, and mathematical rigor of logical reasoning principles. The benchmark set includes nonlinear and parametric continuous and hybrid systems and hybrid games, each in three modes: fully automatic verification, semi-automatic verifica- tion from proof hints, proof checking from scripted tactics. This instance of the competition focuses on presenting the differences between the provers on a subset of the benchmark examples.
Cloud-Based Three-Dimensional Pattern Analysis and Classification of Proximal Humeral Fractures – A Feasibility Study
Authors: Baumann Denise , Gerber Popp Ariane , Degen Markus , Brodbeck Dominique , Coigny Florian , Suter Thomas , Schkommodau Erik 
Published: December 2022

For the complex clinical issue of treatment decision for proximal humeral fractures, dedicated software based on three-dimensional (3D) computer tomography (CT) models would potentially allow for a more accurate fracture classification and help to plan the surgical strategy needed to reduce the fracture in the operating theatre. The aim of this study was to elaborate the feasibility of implementation of such software using state-of-the-art cloud technology to enable access to its functionalities in a distributed manner. Feasibility was studied by implementation of a prototype application, which was tested in a usability study with five biomedical engineers.Implementation of a cloud-based solution was feasible using state-of-the-art technology under application of a specific software architectural approach allowing to distribute computational load between client and server. Mean System Usability Scale (SUS) Score for the developed application was determined to be 63 (StDev 20.4). These results can be interpreted as a medium low usability with high standard deviation of the measured SUS score. We conclude that more test subjects should be included in future studies and the developed application should be evaluated with a representative user group such as orthopaedic shoulder surgeons in a clinical setting.
Ability to Achieve Mediolateral Gap Balance with Instrumented Navigated Total Knee Arthroplasty – A Review of the First 150 Cases
Authors: Angibaud Laurent , Jung Amaury , Hamad Cyril , Fan Wen , Davis Mark , Zirgibel Brian , Deister Jake , Huddleston James 
Published: December 2022

Appropriate management of the soft tissue envelope at the time of the surgery is critical to the long- term success of total knee arthroplasty (TKA). In this regard, thiscomputer-assisted orthopedic surgery (a force-controlled intraarticular distractor. The first 150 cases performed by 16 surgeons were reported without any exclusions, and for each of these cases, the final mediolateral (ML) laxity was compared to the predicted ML laxity. The average signed ML laxity was well aligned with a neutral differential throughout the full arc of motion and ranged from -0.05mm at 35° of flexion to 0.37mm at 85° of flexion. The signed ML laxity curves tend to be surgeon specific. The average unsigned ML laxity was linear throughout the full arc motion and ranged from 1.14mm at 85° of flexion to 1.27mmat 30° of flexion.the targeted ML gap balance when using afeaturingDespite data from all the users (not only design surgeons) involved with this pilotrelease were considered and the learning curve cases were not excluded, it was observed a high abilitystudy evaluated the ability to achieveCAOS) systemto achieve the targeted ML laxity using the proposed method.
Functional Safe Zone for Cup Orientation in THA
Authors: Guezou-Philippe Aziliz , Marchadour Wistan , Pluchon Jean-Philippe , Letissier Hoel , Lefèvre Christian , Stindel Eric , Dardenne Guillaume 
Published: December 2022

The usual safe zone for cup orientation in THA is not suitable for all patients, as the pelvic tilt varies with the movements of daily activities. A new Functional Safe Zone (FSZ) is proposed that considers the pelvic tilt in different positions. The aims of this study were to validate the proposed FSZ and to evaluate how the pelvic mobility impact it.We measured the pelvic tilts of 30 patients when standing, sitting and supine, using our ultrasound-based device and computed their FSZs. The FSZs accuracy was assessed using a Computer-Aided-Design (CAD) software. The pelvic mobility influence onto the FSZ was assessed by jointly analysing the patients’ FSZs and their pelvic tilt difference between positions.The true FSZ provided by the CAD software and the estimated FSZ were similar by 92% and differed by less than 0.5◦ at borders and at the mean orientation. Patients with stiff pelvic mobility obtained small FSZs, and conversely, patients with large pelvic tilt variations between positions obtained large FSZs.The proposed method allows the computation of a patient-specific FSZ without requir- ing additional X-ray or CT images. Patients having a low pelvic mobility with a higher risk of postoperative instability could be better managed using this FSZ.
Fully Automatic Analysis of Posterosuperior Full-Thickness Rotator Cuff Tears from MRI
Authors: Hess Hanspeter , Gussarow Philipp , Rojas J Tomás , Weber Stefan , Hayoz Annabel , Zumstein Matthias A. , Gerber Kate 
Published: December 2022

Rotator cuff tears (RCT) are one of the most common sources of shoulder pain. Many factors can be considered to choose the right surgical treatment procedure. Of the most important factors are the tear retraction and tear width, assessed manually on preoperative MRI.A novel approach to automatically quantify a rotator cuff tear, based on the segmentation of the tear from MRI images, was developed and validated. For segmentation, a neural network was trained and methods for the automatic calculation of the tear width and retraction from the segmented tear volume were developed.The accuracy of the automatic segmentation and the automated tear analysis were evaluated relative to manual consensus segmentations by two clinical experts. Variance in the manual segmentations was assessed in an interrater variability study of two clinical experts.The accuracy of the tear retraction calculation based on the developed automatic tear segmentation was 5.3 mm ± 5.0 mm in comparison to the interrater variability of tear retraction calculation based on manual segmentations of 3.6 mm ± 2.9 mm.These results show that an automatic quantification of a rotator cuff tear is possible. The large interrater variability of manual segmentation-based measurements highlights the difficulty of the tear segmentations task in general.
Computer and Robotic Assisted Orthopaedic Knee Arthroplasty Surgery: Did CAOS technologies have an impact on the mainstream principles and concepts in the orthopaedic knee forum? A case study on alignment and balancing for TKA.
Authors: Wallace David , Mahmood Fahd , Deakin Angela , Riches Philip , Deep Kamal , Baines Joseph , Picard Frederic 
Published: December 2022

Computer technology is ubiquitous and relied upon in virtually all professional activities. Confounding this is orthopaedic surgery where less than 5% of surgeons are using computer-assisted technologies routinely. However, the impact of Computer Assisted Orthopaedic Surgery (CAOS) may go beyond adoption in theatre.We searched pubmed for all knee arthroplasty papers concerning knee alignment and balancing between 1976 and 2016, dividing the results into those related to CAOS and those not. Results were grouped by technology.Between 2001 and 2008, the number of publications regarding knee navigation multiplied by 20 mainly focused on this topic of alignment and balancing, with alignment papers paralleled between navigation and non-navigation until 2010. After 2010, when navigation publications decline the number of articles related to the knee alignment and balancing without navigation increased granting the value of assessing accurately intraoperative kinematic data to improve Total Knee Arthroplasty (TKA) outcomes. From 2008, patient specific instrumentation (PSI) publications greatly increase, but navigation decreases, while robotic publications rise from 2014.CAOS surgery publications on the search topic of alignment and balancing increased greatly between 2001 and 2018 which may suggest the impact of CAOS technology on this important knee orthopaedic forum segment.
Development of a Portable Upper Limb Muscle Dynamometer for Assessment of Neuromuscular Injury Patients
Authors: Day Colin , Bedard Erik , El Alaoui Yassine , Hwang Mark , Berger Michael , Giles Joshua W 
Published: December 2022

IntroductionPatient recovery from neuromuscular injuries that cause upper limb dysfunction is commonly assessed via manual methods. Manual muscle testing is subjective, time consuming and requires extensive training. Existing dynamometers are more objective, but they are prohibitively expensive and impractically large, making them inaccessible to most clinics and patients with disabilities. Our aim is to develop a table-top upper limb muscle dynamometer that provides standard positioning, ease of use and portability while giving clinicians consistent and reliable quantitative data on a patient’s isotonic and isometric muscle power and strength, respectively.MethodsThe device consists of a lever arm, a brushless DC motor, a load sensor and an ergonomic cuff. It outputs analog data via standard BNC connectors. The device can be intuitively controlled by the operator to test various upper limb joints and motions. Isometric measurement repeatability was assessed by recording the maximal voluntary contractions of 18 healthy participants over three trials.ResultsThe repeatability across 3 trials was 2.70±2.27 Nm (95th percentile: 6.74 Nm) for elbow flexion, and 2.83±2.13 Nm (95th percentile: 5.65 Nm) for elbow extension.ConclusionsThe dynamometer demonstrates a marked improvement in repeatability relative to manual muscle testing. Its small footprint and low cost can make it an easily accessible, standardized testing tool that requires little training to use. Future research and development will focus on using field-oriented control to measure isotonic muscle power in addition to isometric strength.
X-ray based morphological analysis of the knee - a review
Authors: Grothues Sonja , Radermacher Klaus 
Published: December 2022

Mismatch between the patient’s knee morphology and the implant geometry is linked to poorer clinical outcome after total knee arthroplasty (TKA). Hence, patients whose knee morphology differs strongly from the norm may have a higher risk to be dissatisfied after surgery. Consequently, a preoperative risk assessment regarding differences between individual knee morphology and implant geometry is favorable. For adequate availability and limited radiation dose, this should be based on standard imaging in TKA, being conventional radiographs.We reviewed morphological measures of the knee to be evaluated on X-ray images. Only measures of the articulating areas, without connections to pathologies such as patellar instability or pain, were included. In addition, the accuracy of 2D-3D knee reconstruction was reviewed, in order to assess the potential use for 3D X-ray based analysis.Various parameter definitions for the evaluation on anterior-posterior and lateral X-rays exist in the literature. If given, the inter- and intraobserver reliability can be interpreted as moderate to excellent. Several authors have reported on 2D-3D reconstruction accuracies with maximum absolute errors of ~5-6 mm for in vitro studies.Mismatch between the bone morphology implant geometry can partly be assessed in 2D, using single X-rays. Methods for 2D-3D reconstruction demonstrated potential for enabling 3D X ray-based analyses. However, improvements regarding accuracy and larger in vivo validation studies are pending.A basic preoperative risk assessment using X-rays is possible. Future steps could include the automation of the parameter derivation and an enhancement of 2D-3D reconstruction for enabling a more comprehensive assessment.
Validation of an Imageless Optical Computer-assisted Navigation System for Total Knee Arthroplasty
Authors: Xiang William , Windsor Eric , Wang Sheila , Inglis Allan , Sculco Peter 
Published: December 2022

Background: Restoration of the hip-knee-ankle (HKA) angle to within 3 of the neutral mechanical axis is considered a well-aligned total knee arthroplasty (TKA), with outliers associated with higher failure rates. Thus, efforts to improve intraoperative surgical accuracy are of strong clinical interest. This study evaluated the accuracy and safety of a novel, imageless, computer-assisted navigation system (CAS) for TKA.Methods: 112 consecutive patients who underwent primary TKA between January-December 2020 with 2 board-certified, high-volume orthopedic surgeons using the same imageless CAS were retrospectively reviewed. Patient age, BMI, sex, postoperative complications, and reoperations were collected. Two trained reviewers independently assessed tibial and femoral component mechanical alignment measurements in a standardized manner on postoperative full-leg AP and lateral radiographs. The primary outcome was mean absolute degrees of difference for each measurement compared to intraoperative CAS measurements. Outcomes were reported as means  standard deviation.Results: 38%(N=43/112) of patients were male. Mean age was 698 years and mean BMI was 31.15.9. 71%(N=79/112) of patients had a well-aligned TKA (HKA within 3).The mean absolute difference was 1.51.2 for femoral coronal alignment, 1.00.8 for tibial coronal alignment, 2.21.5 for femoral flexion, and 1.81.6 for tibial slope.Two patients(1.8%) underwent reoperation; specifically, 1 patient received a 1-stage revision for periprosthetic joint infection 5 months postoperatively and the other underwent lysis of adhesions 9 months postoperatively for arthrofibrosis.Conclusions: This novel imageless CAS provides accurate readings within 2 for tibial and femoral coronal and sagittal alignment, and patients have low complication rates at early follow-up.
Population Level Validation of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning
Authors: Liu David , Jagota Ishaan , Twiggs Joshua , Miles Brad 
Published: December 2022

A key goal of all TKA alignment strategies is to achieve joint balance. This study aims to compare the alignments achieved by preoperatively planning to a novel distracted joint gap protocol to common alignment strategies as well as to the alignment of a healthy non-arthritic population.A retrospective study comprised of 145 knees was performed. A long-leg supine CT scan, weightbearing AP knee X-ray and two distracted knee X-rays (one each in extension and flexion, making use of an ankle weight to open the joint) were taken pre-operatively. This imaging was used to perform segmentation, landmarking and 3D-to-2D registration. The medial and lateral joint gaps were determined in extension and flexion.The mean weightbearing, KA planned and distracted joint planned HKA were 4.7° (±5.9°) varus, 0.3° (±3.2°) varus, and 2.2° (±3.5°) varus. This compares to a healthy adult HKA of 1.3° (±2.3°) varus. A patient level comparison between the planned KA and distracted joint HKA found that the coronal angles of the two alignments are within 3° of each other for 64% patients, within 3-5° for 26% of patients and greater than 5° for the remaining 10% of patients.Of those compared, the planned distracted HKA was the closest to the constitutional varus HKA of a healthy population. Patient level analysis highlighted the fundamental differences between the planned KA and joint distracted alignments. By considering both hard and soft tissue, the planned joint distracted alignment allows for a more holistic foundation for pre-operative surgical planning for a given patient.
Computer and Robotic Assisted Orthopaedic Knee Arthroplasty Surgery Who drives innovations?
Authors: Wallace David , Mahmood Fahd , Deakin Angela , Riches Philip , Deep Kamal , Baines Joseph , Picard Frederic 
Published: December 2022

Computer assisted and Robotic technology in orthopaedic surgery is still not commonplace compared to un-assisted, conventional orthopaedic surgery. We analysed the relationship between patents and publications trend and question whether we could recognise a pattern which would confirm industry-driven innovation in orthopaedic surgery.Following the same methodology used by Dalton et al. in 2016, we searched pubmed for publications between 1980 and 2018 concerning unicompartmental, patient specific instrumentation, navigation and robotic knee arthroplasty, and patents registered under the “knee arthroplasty” or “knee replacement” label over the same period. Data was plotted using 4 point moving averages.Between 2004 and 2008, the number of publications regarding navigation multiplied by 20 following the number of patents registered during the same period. From 2008 onwards, the number of navigation publications declined while Patient Specific Instrumentation (PSI) publications increased also following patent investments from orthopaedic companies. Finally, robotic publications grew significantly pulled by massive patent registrations after 2012.It seems that the industry has finally found a lucrative economical model after many years of trial and errors and sustained driving innovations.
Efecto de paclobutrazol y Glomus intraradices en el cultivo de Lilium cv. Armandale y Tresor
Authors: Rios Florida Lizeth Gabriela , De La Cruz Guzmán Gumercindo Honorato , Arriaga Frías Alberto , Mandujano Piña Manuel 
Published: December 2022

Los reguladores de crecimiento vegetal se han utilizado para mejorar el aspecto visual de las ornamentales, y la aplicación de micorrizas para facilitar la absorción de fósforo. En esta investigación, se evaluó el efecto de tres concentraciones de paclobutrazol y un inóculo con esporas de Glomus intraradices en el crecimiento, floración y distribución de biomasa de Lilium cv. Armandale y Tresor, fertirrigados con solución nutritiva completa o deficiente de fósforo. Cuarenta y cinco bulbos de cada cultivar fueron sumergidos en soluciones con 0, 50 o 200 mg L-1 de paclobutrazol y plantados en macetas con 2,5 L de tezontle, a 15 bulbos se les espolvoreó 1 g del inóculo antes de su plantación. Los resultados mostraron que Lilium ‘Armandale’ fue más alto (59,13 cm) que ‘Tresor’ (47,80 cm). En ambos cultivares, paclobutrazol redujo la altura y los tipos de riego no afectaron esta variable. El número de hojas (89), diámetro (17,90 mm) y longitud (47,49 mm) de botones florales fueron similares en ‘Armandale’ y ‘Tresor’. El número y biomasa fresca de los botones florales fueron 1,3 y 2,5 veces mayores en ‘Tresor’ cuyos tallos florales fueron visualmente más llamativos. El fertirriego con solución nutritiva deficiente de fósforo en bulbos inoculados incrementó la biomasa seca de raíces, pero no la de tallos y hojas, es decir, el efecto positivo del inóculo ocurrió en el sitio de interacción hongo-planta.