bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Novel 6-DOF Force-Sensed Human-Robot Interface for an Intuitive Bilateral Teleoperation
Authors: Liu Xin-Jun , Li Zihao , Xie Fugui , Ye Yanlei , Li Peng 
Published: February 2022

Abstract
The teleoperation of a 6 degrees-of-freedom (DOF) manipulator is one of the basic methods to extend people’s capabilities in the wide variety of applications. The master interface based on the force/torque (FT) sensor could provide the full-dimension intuitive bilateral teleoperation of a 6-DOF robot since it has the ability to trigger 6-DOF command input. However, due to the force coupling, noise disturbance and unlimited input values of the FT sensor, this forces-sensed interface could not be widely used in practice. In this paper, we present an intuitive teleoperation method based on the force-sensed sensor from mechanical design and input force signal process to overcome these challenges. In this method, the input signals from the force-sensed joystick were filtered and then processed to the force commands by force limit algorithm, with the merits of anti-interference, output limitation, and online velocity adjustment. Furthermore, based on the admittance control and position controller, the manipulator could be teleoperated by the force commands. Three experiments were conducted on our self-designed robotic system. The result of the first experiment shows that the interfered force from the force coupling could be effectively suppressed with the limitation of the input force through force limit algorithm. Then, a parameter was introduced in the other two experiments to adjust the velocity online practically with force limit algorithm. The proposed method could give a practical solution to the bilateral teleoperation based on the FT sensor.
Anomalous phase transformation behavior and hyperfine ferromagnetism inCo; results from perturbed angular correlation spectroscopy corroborated byab-initio calculations
Authors: Dey C. C. , Sewak R. , Toprek D. 
Published: February 2022

Abstract
Temperature dependent phase transformation behavior in Co from hcp to fcc has been found to be contradictory to that reported earlier. It is found that hcp phase stabilizes at both low and high temperature (∼873 K)while fcc phase is stabilized at ∼500 K. At 298 K, hcp Co has been found to be predominant (∼70%) where hcp magnetic phase is ∼60%. At 973 K, hcp phase is again predominant (∼73%), but it is mainly the non-magnetic phase (∼67%). Contrary to present results, it was found earlier that fcc phase was stabilized at high temperature and hcp to fcc transformation occured at ∼700 K. Theoretical models show that non-magneticfcc phase is more stable than non-magnetic hcp phase and presence of magnetism destabilizes the fcc phaseat low temperature. Present results from perturbed angular correlation measurements, therefore, requires anew theoretical interpretation for Co phase transformation. From present measurements, hyperfine magneticfields in Co at room temperature for the hcp and fcc phases have been found to be 18.7(6) and 12.8(3) T, much lower than earlier reported results. The hyperfine magnetic fields at 181Ta impurity atom have been calculated by density functional theory (DFT) employing the full potential (linearized) augmented plane wave method (FP-LAPW). Present calculated results for both hcp and fcc phases corroborate our experimental results.
The Impact of Splenectomy on Human Lipid Metabolism
Authors: Gunes Orgun , Turgut Emre , Bag Yusuf , Gundoğan Ersin , Aydın Mehmet Can , Sumer Fatih , Kayaalp Cuneyt 
Published: February 2022

Abstract
Background Splenectomy impacts hematological, immunological and metabolic functions of the patient. Since our understanding of its metabolic effects, in particular effects on lipid metabolism, are limited, this study aims to investigate the effects of splenectomy on lipid metabolism.MethodsThe data from 316 patients undergoing splenectomy between 2009 and 2019 were retrospectively analyzed. Thirty-eight patients whose blood lipid values ​​were measured both preoperatively and one year after surgery were included in the study.Results Significantly higher levels of total cholesterol and low-density lipoprotein were found in the post – splenectomy measurements. However, no significant differences were recorded in levels of triglyceride, high-density lipoprotein, or very-low-density lipoprotein.ConclusionWe determined that splenectomy does impact lipid metabolism and that the metabolic effects of splenectomy should be further investigated.
On the Outage Performance of Decode–and– Forward Based Relay Ordering in Cognitive Wireless Sensor Networks
Authors: S DEVIPRIYA 
Published: February 2022

Abstract
In this paper, the issue of secondary network access in cognitive wireless sensor networks (CWSN) is investigated. An efficient scheme (in terms of both power and spectrum) named Decode-and-Forward based multi-relay scheme with relay ordering (DF-MRRO) is proposed for secondary network access. More important, this scheme is used to enhance the performance of secondary network. In an effort to assess the performance, the received signal-to interference-plus-noise ratio (SINR) of both the primary and secondary links are derived, from which new exact closed-form expressions for the outage probability of primary and secondary networks are derived. Moreover, the diversity order is calculated for both the primary and secondary network. It is also shown that full diversity order can be achieved if the condition of power requirement is satisfied. Finally, simulation results obtained for the outage performance of the proposed scheme in primary and secondary networks prove the effectiveness of the proposed scheme. It also demonstrates that a maximum of 7dB SNR gain can be achieved in the proposed DF-MRRO scheme.
Neuromaps: structural and functional interpretation of brain maps
Authors: Misic Bratislav , Markello Ross , Hansen Justine , Liu Zhen-Qi , Bazinet Vincent , Shafiei Golia , Suarez Laura , Blostein Nadia , Seidlitz Jakob , Baillet Sylvain , Satterthwaite Theodore , Chakravarty M. Mallar , Raznahan Armin 
Published: February 2022

Abstract
Imaging technologies are increasingly used to generate high-resolution reference maps of brain structure and function. Modern scientific discovery relies on making comparisons between new maps (e.g. task activations, group structural differences) and these reference maps. Although recent data sharing initiatives have increased the accessibility of such brain maps, data are often shared in disparate coordinate systems (or "spaces"), precluding systematic and accurate comparisons among them. Here we introduce the neuromaps toolbox, an open-access software package for accessing, transforming, and analyzing structural and functional brain annotations. We implement two registration frameworks to generate high-quality transformations between four standard coordinate systems commonly used in neuroimaging research. The initial release of the toolbox features >40 curated reference maps and biological ontologies of the human brain, including maps of gene expression, neurotransmitter receptors, metabolism, neurophysiological oscillations, developmental and evolutionary expansion, functional hierarchy, individual functional variability, and cognitive specialization. Robust quantitative assessment of map-to-map similarity is enabled via a suite of spatial autocorrelation-preserving null models. Finally, we demonstrate two examples of how neuromaps can be used to contextualize brain maps with respect to canonical annotations. By discovering novel associations with previously-established features of brain structure and function, neuromaps generates biological insight about new brain maps. Altogether, neuromaps combines open-access data with transparent functionality for standardizing and comparing brain maps, providing a systematic workflow for comprehensive structural and functional annotation enrichment analysis of the human brain.
Identification of Characteristic Metabolic Panels for Different Stages of Prostate Cancer by 1H NMR-based Metabolomics Analysis
Authors: Zhang Xi , Xia Binbin , Zheng Hong , Ning Jie , Zhu Yinjie , Shao Xiaoguang , Liu Binrui , Dong Baijun , Gao Hongchang 
Published: February 2022

Abstract
Background: Prostate cancer (PCa) is the second most prevalent cancer in males worldwide, yet detecting PCa and its metastases remains a major challenging task in clinical research setups. The present study aimed to characterize the metabolic changes underlying the PCa progression and investigate the efficacy of related metabolic panels for an accurate PCa assessment. Methods: This study analyzed the metabolic profiles of serum samples from PCa patients (n = 75), PCa patients with bone metastasis (PCaB, n = 62), and benign prostatic hyperplasia patients (BPH, n = 50) by 1H nuclear magnetic resonance (NMR)-based metabolomics analysis.Results: Multivariate analysis revealed that BPH, PCa, and PCaB groups showed distinct metabolic divisions, while univariate statistics integrated with variable importance in the projection (VIP) scores identified a differential metabolite series, which included energy, amino acid, and ketone body metabolism. Additionally, our results also revealed the metabolic panels of discriminant metabolites coupled with the clinical parameters (age and body mass index) for discrimination between PCa and BPH, PCaB and BPH, PCaB and PCa achieved the AUC values of 0.828, 0.917, and 0.872, respectively. Conclusions: Overall, this study characterizes the potential metabolic alterations involved in the PCa progression and its metastases, and might provide potential metabolic biomarkers for the diagnosis and classification of PCa.
Safe alternative approach of reduced three-port versus conventional five-port laparoscopic right hemicolectomy for right-sided colon cancer: a propensity score matching analysis.
Authors: Kim In-Kyeong , Kwag Seung-Jin , Kim Han-Gil , Ju Young-Tae , Park Ji-Ho , Kim Ju-Yeon , Park Tae-Jin , Jung Sang-Ho , Jeong Chi-Young , Jung Eun-Jung , Lee Young-Joon , Lee Jin-Kwon 
Published: February 2022

Abstract
BackgroundLaparoscopic surgery with reduced port for colorectal cancer is being increasingly implemented, but its feasibility and safety are still uncertain. This study aimed to evaluate the safety and effectiveness of three-port laparoscopic right hemicolectomy (3-LRHC) compared to the conventional five-port laparoscopic right hemicolectomy (5-LRHC) for right-sided colon cancer using propensity score matching analysis. MethodsA total of 311 patients diagnosed with right-sided colon adenocarcinoma underwent laparoscopic right hemicolectomy (LRHC) in two medical centers between January 2011 and May 2021. We analyzed the short-term outcomes, such as clinical characteristics, intraoperative and postoperative outcomes, postoperative pain score, pathologic results and the long-term outcomes such as overall survival, disease-free survival rate. ResultsAs a result of the propensity score matching method, 108 patients in each group were similarly selected by clinicopathological variables such as age, sex, American Society of Anesthesiologists (ASA) score, and stage. The mean operation time except open conversion, first day of oral diet, first day of drain removal was shorter in the 3-LRHC than in the 5-LRHC group. Thus, recovery of bowel function was found to be faster in 3-LHRC group than in 5-LRHC group. No significant differences were observed in postoperative complication and severity, postoperative pain scale, open conversion rate. The number of harvested lymph nodes, overall survival and disease-free survival rates between the two groups were also not significantly different. ConclusionsReduced 3-LRHC has advantage of shortening the hospital stay due to rapid recovery of intestinal function and reduced pain without the need for additional instrument. There was no difference from 5-LRHC in terms of oncological outcomes and survival rates. Therefore, 3-LRHC for right-sided colon cancer may provide a safe and feasible alternative to conventional 5-LRHC.
Concomitant Cancer Related Venous Thromboembolism and Arterial Thromboembolism
Authors: Li Ji-Feng , Yang Su-Qiao , Su Ri-Na , Song Ling-Xie , Liu Lin , Jiao Xiao-Jing , Li Yu-Na , Ding Yuan , Yang Yuan-Hua 
Published: February 2022

Abstract
Background: Thrombosis is closely related with cancer patients. Venous thromboembolism such as pulmonary thromboembolism and deep vein thrombosis are more frequently occurred in cancer patients. Arterial thromboembolism such as myocardial infarction and ischemic stroke were less occurred. Venous thromboembolism and arterial thromboembolism were rarely concomitantly occurred in cancer patients, especially ahead of cancer diagnosis. Methods: Five patients who suffered from venous thromboembolism and arterial thromboembolism sequentially and then cancer was diagnosed were enrolled and followed up until the patient died or until June 2021. The medical records were retrospectively reviewed to evaluate the clinical characteristics, image findings and the outcomes.Results: Three women and two men were renrolled, with a mean age of 63.2 years (range, 47-76 years). Four patients suffered from ischemic stroke, and the lesions showed by magnetic resonance manifested bilateral diffuse changes. One patient suffered from lower limb arterial thromboembolism. Four patients suffered from pulmonary thromboembolism diagnosed by CTPA or ultrasound (among them, two patients with deep venous thrombosis simultaneously), one patient suffered from solely deep venous thrombosis. Pulmonary adenocarcinoma was diagnosed in two patients, and one skin basal cell carcinoma, one ovarian clear cell adenocarcinoma and one rectal adenocarcinoma were diagnosed in the other three patients. Four patients received cancer related treatment and all patients received anticoagulation therapy. Except the patient without cancer related treatment who survived for 3 months, all the other four patients survived more than 2 years.Conclusion: Cancer can present as venous thromboembolism or arterial thromboembolism or both in advance. Cancer should be screened in patients with venous thromboembolism, especially those with concomitant arterial thromboembolism.
Relationship between serum growth differentiation factor 15, fibroblast growth factor-23 and risk of atrial fibrillation: a systematic review and meta-analysis
Authors: Tan Ziqi , Huang Shanshan , Liu Menglu , Song Tiangang , Zhu Wengen , Ma Jianyong , Zhang Jing , Yu Peng , Liu Xiao 
Published: February 2022

Abstract
Background and Objective: Growth differentiation factor-15 (GDF-15) and fibroblast growth factor-23 (FGF-23) were considered as predictors of the incidence of cardiovascular diseases. The present meta-analysis aimed to elucidate the associations of GDF-15 and FGF-23 with the risk of atrial fibrillation (AF). Methods: An electronic search was conducted in Cochrane Library, PubMed, and Embase databases from inception until February 27, 2021. The study protocol was registered in PROSPERO database (CRD42020182226). Results: In total, 15 studies that enrolled 36,017 participants were included. Both serum FGF-23 and GDF-15 was elevated in patients with AF. Analysis of categorical variables showed a higher serum FGF-23 level was associated with increased risk of AF (relative risk (RR)=1.28, 95% confidence interval (CI): 1.05-1.56), but not GDF-15 (RR=0.91, 95% CI: 0.20-4.04). In dose-response analysis, a linear positive association was noted between serum FGF-23 level and the risk of AF (P nonlinear = 0.9507), with a RR elevation by 7% for every 20 pg/ml increase in the serum FGF-23 level (95% CI: 1.02–1.13). No remarkable linkage was found between serum GDF-15 level and the risk of AF, and the overall RR for the association between a 100 ng/L increment in GDF-15 level and AF was 1.01 (95% CI: 0.998–1.02).Conclusion: Our study showed a positive linear correlation of serum FGF-23 level with the risk of AF. However, no significant association was found between GDF-15 and risk of AF. Further studies are warranted to clarify whether serum FGF-23 level may be significant to predict the risk of AF.
The Role of Temporal Coherence and Temporal Predictability in the Build-Up of Auditory Grouping
Authors: Sollini Joseph , Poole Katarina C. , Blauth-Muszkowski Dominic , Bizley Jennifer K. 
Published: February 2022

Abstract
The cochlea decomposes sounds into separate frequency channels, from which the auditory brain must reconstruct the auditory scene. To do this the auditory system must make decisions about which frequency information should be grouped together, and which should remain distinct. Two key cues for grouping are temporal coherence, resulting from coherent changes in power across frequency, and temporal predictability, resulting from regular or predictable changes over time. To test how these cues contribute to the construction of a sound scene we present listeners with a range of precursor sounds, which act to prime the auditory system by providing information about each sounds structure, followed by a fixed masker in which participants were required to detect the presence of an embedded tone. By manipulating temporal coherence and/or temporal predictability in the precursor we assess how prior sound exposure influences subsequent auditory grouping. In Experiment 1, we measure the contribution of temporal predictability by presenting temporally regular or jittered precursors, and temporal coherence by using either narrow or broadband sounds, demonstrating that both independently contribute to masking/unmasking. In Experiment 2, we measure the relative impact of temporal coherence and temporal predictability and ask whether the influence of each in the precursor signifies an enhancement or disruption of unmasking. We observed that interfering precursors produced the largest changes to thresholds.
Fasciola hepatica extract suppresses fibroblast-like synoviocytes in vitro and alleviates experimental arthritis
Authors: Dalmolin Suelen Pizzolatto , Pedó Renata Ternus , Rosa Thales Hein , Silva Jordana Miranda Souza , Farinon Mirian , Gasparini Maria Luísa , Chiela Eduardo Cremonese Filippi , Paz Ana Helena , Sehabiague Martín Pablo Cancela , Ferreira Henrique Bunselmeyer , Santo Rafaela Cavalheiro Espírito , Gonçalves Fabiany , Xavier Ricardo Machado 
Published: February 2022

Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by synovial inflammation, fibroblast-like synoviocytes (FLS) activation and joint destruction. Fasciola hepatica is a platyhelminth that releases excretory-secretory immunomodulatory products capable of suppressing the Th1 immune response and the production of inflammatory cytokines. Despite the effectiveness of available treatments for inducing and maintaining disease remission, there is no cure for RA. Current options are not successful in all patients and may cause side effects. Thus, new therapeutic alternatives are needed for RA. We evaluated the therapeutic potential of F. hepatica extract on FLS from RA patients and in antigen-induced (AIA) and collagen-induced (CIA) arthritis models. FLS were isolated from synovial fluid of RA patients, cultured, and exposed to F. hepatica extract (60, 80, and 100 µg/ml) for different time points. In vitro assays showed that extract decreased FLS cell viability, adherence, migratory potential, and cell invasiveness. For in vivo experiments, AIA and CIA animals received a 200 µg/dose of F. hepatica extract daily. The extract reduced leukocyte migration and nociception in AIA and delayed clinical onset of CIA, while preventing body weight loss. Taken together, our results point out a potential immunomodulatory effect of the F. hepatica extract in RA models.
Transgluteal Approach for Porcine Model Construction of Specific Hip Conditions
Authors: Su Tiao , Yang Liu , Chen Guang-xing 
Published: February 2022

Abstract
There exists no study reporting a safe and efficient approach for porcine model construction of specific hip conditions. Two pigs were sacrificed for the study of hip anatomy to explore possible approaches and 36 porcine models of irreparable acetabular labral tear were constructed to verify the feasibility and safety of different approaches. Based on the findings of the cadaveric study, three possible approaches were found: anterior approach, transgluteal approach, and posterior approach. 36 pigs were divided into three groups evenly in a random way according to the mentioned approaches they have undergone. The intraoperative findings revealed that the blood loss of the transgluteal group was the least among the three groups which had much to do with the least operative time. Although the posterior approach had similar surgical exposure with the transgluteal group, four pigs were found to have a surgical-related injury of the sciatic nerve. Additionally, operative exposure was inadequate due to larger surgical tension using the anterior approach compared with the other two approaches. In conclusion, transgluteal approach might be a suitable option for porcine model construction for its advantages and safety.
Effects of Intrinsic and Extrinsic Surface Optical Phonons on the Performance of the Graphene based Devices: an Accurate and Straightforward Modeling
Authors: Jalalvandi Sharare , Darbari Sara , Moravvej-Farshi Mohammad Kazem 
Published: February 2022

Abstract
Surface plasmons in graphene have mainly been affected by intrinsic optical phonons due to the vibrations of the carbon atoms and surface polar optical phonons (S-POPs) of the underlying dielectric surface. This plasmon hybridization dramatically changes the features of the plasmonic devices. However, a complete theoretical model for the graphene impedance to consider the optical phonons effects is yet remained to be developed. Here, we show how to derive a model for graphene impedance to include such impacts on graphene surface plasmons. Earlier models suffer from two limitations — i.e., the inability to show (i) the transformation of a single pure plasmonic mode into multiple hybrid plasmon-phonon excitations and (ii) the damping effect for energies beyond that of the intrinsic optical phonons due to the phonon emission. Our new model overcomes these two limitations. Then, we calculate the extinction spectra for a one-dimensional periodic array of graphene ribbons obtained through the impedance boundary condition method, addressing these obstacles. These spectra are directly related to graphene impedance, modeled using the dielectric function we developed in our earlier work. The extinction spectra show the presented model overcoming the limitations, firmly fitting the experimental data reported by others. Furthermore, we introduce our developed model for graphene to the CST Studio software to verify the accuracy of our extinction relation and impedance model. This study can be a step forward to correctly predicting the behavior of graphene-based plasmonic devices.