bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intra-operative fractures in primary total knee arthroplasty - a systematic review
Authors: Purudappa Prabhudev Prasad , Ramanan Sruthi Priyavadhana , Tripathy Sujit Kumar , Varatharaj Sushrruti , Mounasamy Varatharaj , Sambandam Senthil Nathan 
Published: August 2020

Abstract
Background
One of the rare complications of primary total knee arthroplasty is intra-operative fracture. Intra-operative fracture during revision knee arthroplasty has been well-documented but there is limited literature on fractures occurring during primary knee arthroplasty. We conducted a systematic review of the literature to compare and contrast the various studies to clearly define the predisposing factors, incidence, and characteristics of the fracture itself and to arrive at a consensus on the management and prevention of intra-operative fractures during primary knee arthroplasty.

Methods
The PubMed/Medline, Cochrane, Scopus and Embase databases were searched using keywords “intra-operative fracture”, “distal femoral fracture”, “tibial fracture”, “patella fracture” and “primary total knee arthroplasty”. A total of 158 articles were retrieved and after further filtration and exclusion processing, 10 articles that evaluated intra-operative fractures in primary total knee arthroplasty were included for the review.

Results
The reported incidence of intra-operative fractures varied from 0.2% to 4.4%. A higher incidence in female patients with a male to female ratio of 0.4 was reported. Posterior stabilized (PS) total knee arthroplasty was associated with higher risk of intra-operative femoral fractures by many authors in this review. Timing of occurrence and location of the intra-operative fractures can vary widely, with femoral fractures occurring more commonly during bone preparation, trialing and impaction of the final implant and tibial fractures occurring during preparation for the tibial keel and impaction of the tibial component.

Conclusions
Intra-operative fractures during primary total knee arthroplasty are rare with higher risk associated with osteoporosis, rheumatoid arthritis, advanced age, female gender, chronic steroid use, metabolic bone disorders, PS type of femoral implant and difficult surgical exposure of the knee joint due to severe deformities. A plethora of management options have been utilized according to surgeon preference. Standard principles of fracture fixation and arthroplasty principles should be followed to achieve stable internal fixation and any unstable fracture site should be bypassed with the utilization of stemmed components. Satisfactory radiographic and functional outcome can be expected with appropriate treatment.
Influence of posteromedial corner injuries on clinical outcome and second-look arthroscopic findings after allograft transtibial anterior cruciate ligament reconstruction
Authors: Yoo Jun-Young , Park Hee-Gon , Kwon Soon-Min 
Published: August 2020

Abstract
Background
The purpose of this study was to evaluate the influence of posterior medial corner (PMC) injuries on clinical outcome and second-look arthroscopic findings after anterior cruciate ligament (ACL) reconstruction.

Methods
Seventy-eight consecutive patients underwent a second-look arthroscopic surgery after ACL reconstruction and magnetic resonance imaging (MRI) examination of the PMC. The patients were divided into a PMC intact group (n = 42) and a PMC injured group (n = 36). The stability and clinical outcomes were evaluated using the Lachman test, pivot-shift test, a KT-2000 arthrometer, and the Lysholm knee scoring scale. Graft tension and synovial coverage were evaluated in second-look arthroscopy.

Results
The clinical function showed no significant differences regarding PMC injury. Although the graft tendon tension revealed no significant differences (p = 0.141), the second-look arthroscopic findings indicated that the PMC intact group showed better synovial coverage compared to the PMC injured group (p = 0.012).

Conclusion
Patients who injured the PMC had poor synovial coverage as assessed by second-look arthroscopic findings after transtibial ACL reconstruction, even though clinical outcomes and stability showed no significant differences.
Correlation of prognostic factors with MRI findings in malignant breast lesions
Authors: Temiz Kerim , Oztekin Pelin Seher , Hucumenoglu Sema , Koseoglu Enver Necip , Kosar Pinar Nercis 
Published: August 2020

Abstract
Background
Magnetic resonance imaging (MRI) of the breast represents the most sensitive imaging modality in the detection of breast cancer, with a reported sensitivity between 94 and 100%. We aim to detect the correlation between MRI findings and pathologically detected prognostic factors in malignant breast lesions.
Breast parenchymal density distribution, background parenchymal enhancement pattern, lesion’s morphologic features, T2WI signal characteristics, contrast enhancement, time/signal intensity curves, and lesions localizations in breast were evaluated using dynamic MRI images. Histopathological diagnosis, maximum measurements of the lesion, histological grade, presence of estrogen and/or progesterone receptors, c-erb B2, and Ki-67 parameters were noted as prognostic factors.

Results
We cannot detect any relationship between the breast parenchymal density and prognostic factors. Mild background breast enhancement is related with ER presence, a good prognostic factor. Histopathological grade of the lesions augmented with the increase in the lesion diameters. ADC values are not related with prognostic factors.

Conclusion
A mild background enhancement, an intermediate signal intensity on T2WI, a high tpeak value, and absence of pathological axillary lymph node are found to be related with good prognostic factors. An irregular contour, a huge diameter, having a type III kinetic curve, a high slopei value, and presence of pathological axillary lymph node are found to be related with poor prognostic factors. MRI can be used to predict prognostic factors in breast cancer cases.
Automatic waveform-based source-location imaging using deep learning extracted microseismic signals
Authors: Saad Omar M. , Chen Yangkang 
Published: August 2020

We have used an automatic unsupervised technique to extract waveform signals from continuous microseismic data. First, the time-frequency representation (scalogram) is obtained for the input microseismic trace. Second, the convolutional autoencoder (CAE) is used to extract the significant scalogram features related to the waveform signals and discard the rest. Third, the extracted features from the CAE encoder are considered as the input for the k-means clustering algorithm, in which the input samples are classified into waveform and nonwaveform components. The proposed algorithm is evaluated using several synthetic and field examples. We find that the proposed algorithm successfully extracts the waveform signals even in a noisy environment with a signal-to-noise-ratio as low as −10 dB. We compared the proposed algorithm to benchmark algorithms, for example, simple k-means and short-term and long-term average ratio methods, and find that the proposed algorithm performs best. We find that the detected waveform signals can enhance the resolution of microseismic imaging using a waveform-based reverse time migration method.
Hannah Arendt, Karl Jaspers, and World Citizenship Rethought
Authors: Papastephanou Marianna 
Published: August 2020

AbstractIn antiquity Diogenes was asked to identify himself as a citizen. He retorted by affirming that he was a “citizen of the world” and thus implicitly rejecting local citizenship. Ever since, his political identification has become a reference point in most literature on cosmopolitanism. After a brief discussion of the predicate “citizen of the world,” this article turns to Hannah Arendt’s attribution of it to Karl Jaspers. It explores how Arendt’s related work helps us recast issues of patriotism and cosmopolitanism, get a more accurate picture of her complex view on locality and universality, and introduce new sensibilities into political philosophical engagement with claims of world citizenship. Themes of limits, solitude, and darkness emerge as possible points of interest of a philosophy that acknowledges the centrality of politics in the life of the person whose right to world citizenship is tested by subjective and collective answerability to cosmos.
Reification and the Duty to Work Through the Past: On Critical Theory and Temporality
Authors: Peters Mathijs 
Published: August 2020

Abstract
This article focuses on the role that the notion of temporality can and should play in the tradition of Critical Theory. Following an overview of the critical analyses of time found in the works of Marx, Lukács, Weber, Adorno, Fromm, and Marcuse, the article analyzes Hartmut Rosa’s critique of social acceleration and argues that this critique lacks a firm normative basis. This basis is required, however, for one to claim why certain processes of social acceleration are wrong. It is shown that Rosa’s analyses of acceleration contain two suggestions for such a basis: autonomy understood as a narrative identity, and autonomy as defended by Honneth’s theory of recognition. After an exploration of both suggestions, in which the ideas of MacIntyre and Ricoeur are briefly discussed as well, it is argued that a combination of both may result in a specific, normative understanding of reification, which is defended against Honneth’s definition of this concept. Based on an interpretation of passages in Horkheimer and Adorno’s Dialectic of Enlightenment and Adorno’s notion of “working through the past,” the article claims that reification should be understood as a forgetting of the narratives that have shaped the self and the social structures under which this self is formed, and therefore as the inability to recognize the temporal dimensions of the autonomous self.
The Metamorphic Temporality of Natural Beauty: Adorno’s Negation of Kantian Disinterested Contemplation
Authors: Neville Kaushall Justin 
Published: August 2020

AbstractThis article argues that Immanuel Kant’s concept of disinterested contemplation is inadequate because it represses the historical suffering of nature, and thus the aesthetic object’s materiality. It also argues that Theodor W. Adorno’s concept of natural beauty ought to be considered a response to Kant’s concept of disinterested contemplation and, finally, that Adorno must ground the aesthetic concept of natural beauty in a concept of temporality. Such temporality would be a mode of aesthetic experience that allows natural beauty to critically present the violence of history while also anticipating a future in which such violence does not exist. The article calls the new form of temporality that would engage properly with past and future metamorphic. Metamorphic time thus involves recollection and speculation that dialectically refer to each other.
Relation between delivery mode and maternal mental status one month after delivery at a perinatal center in Japan: A cross-sectional study
Authors: Suzuki Shunji 
Published: August 2020

Background: Maternal mental status has been thought to be affected by the delivery modes. We examined the relation between delivery modes and the mental status of women who delivered at our institute in Japan. Methods: Data were collected from the medical charts of 643 primiparous women without a history of mental disorders who delivered singleton babies and underwent a 1-month postpartum check-up at our institute from September 2018 to June 2019. The maternal mental status was examined based on the scores of the Edinburgh Postnatal Depression Scale (EPDS) and the Mother-Infant Bonding Scale (MIBS). Results: The rate of high scores of the EPDS and the MIBS in women choosing elective cesarean section were higher than in women with vaginal delivery and emergency cesarean section. Conclusion: Mental health care may be necessary for women choosing elective cesarean section.
Tibial tuberosity ossification predicts reoperation for growth disturbance in distal femoral physeal fractures
Authors: Kennedy James , Westacott Dan , Camp Mark , Howard Andrew 
Published: August 2020

Purpose Distal femoral physeal fractures (DFPF) can cause growth disturbance that requires further surgical intervention. The aim of this study is to determine if Tibial Tuberosity Ossification Stage (TTOS) at the time of injury predicts secondary surgery for growth disturbance in patients who have sustained a DFPF. Methods We retrospectively investigated all patients who had operative treatment for a DFPF at a single centre over a 17-year period. Regression analysis was performed investigating associations between secondary surgery to treat growth disturbance and TTOS, age, Salter-Harris fracture classification type, mode of fixation or mechanism of injury. Results In all, 85 consecutive patients were identified. A total of 74 met the inclusion criteria. The mean age at time of injury was 13.1 years (2.0 to 17.1). Following fixation, 30 patients (41%) underwent further surgery to treat growth disturbance. Absence of tibial tuberosity fusion to the metaphysis was significantly associated with the need for further surgery (p < 0.001). Odds of requiring secondary surgery after tibial tuberosity fusion to metaphysis (compared with not fused) were 0.12 (95% confidence interval (CI) 0.04 to 0.34). The estimate of the effect of TTOS on reoperation rates did not vary when adjusted for gender, mechanism, fixation and Salter-Harris type. When accounting for age, the odds of any further operation if the tibial tuberosity is fused to the metaphysis (compared with not fused) were 0.28 (95% CI 0.08 to 0.94). Conclusion TTOS at the time of injury is a predictor of further surgery to treat growth disturbance in paediatric distal femoral fractures. Level of Evidence Diagnostic Level II
Assessment of Empirical and Semi-Empirical Models for Estimating a Soil Infiltration Function
Authors: Salahou Mohamed Khaled , Jiao Xiyun , Lü Haishen 
Published: August 2020

HighlightsThe hydraulic performance computed with the KE or GA model is nearly the same, as long the models are calibrated using the same observation data.The GA model with the soil hydraulic parameters obtained from the pedotransfer functions adequately represented the soil infiltration function.The particle size distribution or the soil texture are recommended to estimate soil hydraulic parameters with the VG-ROSETTA model. Abstract. Field-scale estimation of a soil infiltration function is important for the design, simulation, and/or evaluation of surface irrigation systems. Semi-empirical and empirical infiltration models are used to estimate the infiltration function. Semi-empirical infiltration models have substantial computational and parameterization complexities, e.g., soil hydraulic parameters are needed to estimate the infiltration function. In contrast, empirical infiltration models are generally not considered to have specific initial and boundary conditions. The objectives of this study were to compare a semi-empirical infiltration model and an empirical infiltration model. The Green-Ampt model (GA) and the Kostiakov model (KE) were used as semi-empirical and empirical infiltration models, respectively. The soil hydraulic parameters for the GA model were estimated using various pedotransfer functions (PTFs), and in an additional assessment, the measured water content data were used to calibrate and validate the soil hydraulic parameters using the HYDRUS-1D model. The results show that the hydraulic performance computed with the KE or GA model is nearly the same, as long as they are calibrated using the same observation data. Additionally, the results indicate that the GA model with the soil hydraulic parameters obtained from the PTFs adequately represented the soil infiltration function in the borders. Keywords: Empirical infiltration model, Green-Ampt model, Infiltration model, Kostiakov model, Semi-empirical infiltration model, Soil hydraulic properties.
Model Maintenance of RC-PLSR for Moisture Content Measurement of Dried Scallop
Authors: Huang Hui , Liu Shuchang , Ullah Junaid , Sun Zehao , Liu Caicai , Zhang Zhao , Wang Hangzhou 
Published: August 2020

HighlightsThe RC-PLSR model for Haiwan scallop can be transferred to Xiayi scallop.The direct standardization method is suggested for model maintenance.The VSWS-PDS method can be further improved in precision.Abstract. A prediction model for evaluating the moisture content in dried Haiwan scallops was established using hyperspectral imaging (HSI) technology in a previously published study. The accuracy of such models is usually affected by differences in sample species, different environmental conditions such as temperature or humidity, and aging of instruments. In this study, the prediction ability of the RC-PLSR model is improved by correcting the spectra of the tested species of dried scallop (i.e., Xiayi) to solve the problem of model failure caused by sample differences. The results of model maintenance by direct standardization (DS) are compared with those of variety sensitive wavelength selection - piecewise direct standardization (VSWS-PDS). The results showed that after using VSWS-PDS to modify the spectral data of the dried scallop samples, the correlation coefficient of prediction (Rp) of the updated model increased from 0.0890 to 0.9190. However, the root mean square error of prediction (RMSEP) also increased, indicating a need for improved precision. The RC-PLSR model based on DS correction showed Rp of 0.790 and RMSEP of 9.7481%. Model maintenance using the DS method is suggested because DS generally outperformed VSWS-PDS, even with a lower correlation coefficient. Future work on error reduction and sample input is suggested for VSWS-PDS optimization. Keywords: Direct standardization, Hyperspectral images, Model maintenance, Scallop, VSWS-PDS.
Development of a Robotic End-Effector for Apple Tree Pruning
Authors: Zahid Azlan , He Long , Zeng Lihua , Choi Daeun , Schupp James , Heinemann Paul 
Published: August 2020

HighlightsAn end-effector with two degrees of freedom (2R) was developed for pruning apple trees.A rational 2×2 relationship (R2 = 0.93) was found for ‘Fuji’ apple tree branch diameter and cutting force.Simulation showed that the cutter can be aligned in a wide range of orientations in a spherical workspace.The developed end-effector was able to cut branches up to 12 mm in diameter.Abstract. Robotics and automation technologies are now used extensively in agriculture, while production operations for tree fruit crops still largely depend on manual labor. Manual pruning is a labor-intensive and costly task in apple production. Robotic pruning is a potential solution, but it involves several challenges due to the unstructured work environment. This study focused on designing an end-effector prototype for pruning considering the maneuvering, spatial, mechanical, and horticultural requirements. Branch cutting force was measured with a thin force sensor to provide guidelines for the end-effector design. The test results indicated the relationship between the force required to cut different diameter branches with an R2 value of 0.93. The end-effector was developed using two rotary motors, a pneumatic cylinder, and a pair of bypass shear blades. A three-directional linear manipulator system and a control system were built for moving the end-effector to targeted locations. A mathematical model was developed for simulation of the workspace utilization and reachable points of the end-effector. The simulation results indicated that the end-effector can be aligned in a wide range of orientations of the cutter. Field tests were conducted for validation of the simulation results and performance assessment of the end-effector. The results indicated that the end-effector with the current parameter settings successfully cut branches up to 12 mm in diameter and was able to cut branches in a wide range of possible orientations in a given 3D space. The robotic end-effector developed in this study is a core component of an automated pruning system for fruit trees. In future work, an integrated manipulator system will be developed for branch accessibility with collision-free trajectories. Keywords: Malus × domestica (Borkh.), Pruning end-effector, Reachable-points simulation, Tree pruning.
Hardware and Software Design for Premixing In-Line Injection System Attached to Variable-Rate Orchard Sprayer
Authors: Zhang Zhihong , Zhu Heping , Hu Chengsong 
Published: August 2020

.HighlightsA premixing in-line injection system was designed as a retrofit attachment to a laser-guided variable-rate orchard sprayer.A graphical user interface with touchscreen functions was incorporated into the system to facilitate field applications.Preliminary tests demonstrated that simulated pesticide and water could be accurately dispensed and discharged separately into the injection line and mixed well in the buffer tank.This premixing in-line injection system has great potential to further reduce pesticide waste and improve environmental stewardship for conventional and precision variable-rate sprayers.Abstract To eliminate the problems associated with leftover tank mixture in pesticide applications, a premixing in-line injection system was designed as an attachment to a laser-guided variable-rate orchard sprayer. The primary components of the system consisted of a chemical metering pump, a water pump, a two-stage static mixer, a premixing tank, a buffer tank, an electric shut-off valve, a chemical container, electronic control boards, a graphical user interface, and an embedded computer with a touch screen. Liquid level sensors were mounted in all tanks and the chemical container to control the fluid discharge and prevent overflows. The graphical user interface on the touch screen was designed for operators to communicate with the system and monitor the system status. During spray applications, the system performed with automatic loops in dispensing, mixing, and transferring the desired amounts of water and chemical concentrates to maintain the spray mixture at a constant concentration for use with variable-rate nozzles. The system was rinsed automatically when the spray application task was completed. Test results showed that simulated pesticide and water could be accurately delivered into the injection line and could be mixed well in the buffer tank before the spray mixture was discharged to the nozzles. The premixing in-line injection system is a potential technique to further reduce pesticide waste and improve environmental stewardship for both conventional and precision variable-rate orchard sprayers. Keywords: Automation, Environmental protection, Intelligent sprayer, Pesticide spray application, Precision agriculture, Tank mixture leftover.