bluuebunny/crossref_metadata_2025_split huggingface dataset:
Generation of surgical reports using keyword-augmented next sequence prediction
Authors: Bieck Richard , Wildfeuer Valentina , Kunz Viktor , Sorge Martin , Pirlich Markus , Rockstroh Max , Neumuth Thomas 
Published: December 2021

Abstract
The documentation of a surgical procedure remains a time-consuming task that surgeons must incorporate into their daily routine. However, since a surgical report should be produced immediately after the operation with all impressions of the procedure in mind, a means of automation assistance should be provided. We, therefore, propose a method that generates surgical reports based on keywords stated during the procedure. Our report generation is based on a sequence-tosequence model that is trained on sentence pairs of two consecutive sentences in a surgical report. The known sentence is augmented with a keyword based on the following surgical action to be documented and is then passed into a language model to generate the next sentence. In this way, the complexity of predicting a vast number of possible surgical report phrasings is reduced to a next sentence prediction task. For the language model, an encoder-decoder structure was used with bidirectional 2-layer Long-Short Term Memory (LSTM) units for both components and an attention layer between input and output sentences. The training data consisted of 50 ear-,nose- and throat surgery (ENT) reports with 1500 sentences. The model training was performed in a k-fold cross-validation study with k = 10 and cross-entropy loss as the objective function. The generated reports were investigated using NIST, ROUGE, and METEOR metrics. Additionally, three medical experts identified the report content regarding plausibility and text errors. The trained models reached an accuracy of 0.82 for the next sentence predictions. The generated reports show consistent sentence structures and keyword correspondence for about 70 % of provided keyword sequences. The NIST, ROUGE, and METEOR metrics reached 0.65, 0.71, and 0.64, respectively. The model underperformed for not yet known keyword sequences and shows signs of overfitting when keyword sequences deviate from the baseline of the training set. Our approach for the keyword-augmented generation of surgical reports shows the potential of reducing the text generation complexity by providing a sequence of anchor words. However, the automated generation of surgical reports remains a difficult task due to individual report phrasings and the high variance in keyword sequences.
Application of an Ultrashort-pulsed Laser for Generation of Super-hydrophobic Surfaces
Authors: Zahedi Ali , Jauch Christian , Azarhoushang Bahman 
Published: December 2021

Abstract
Hydrophobic surfaces have gained a vast attention in different fields of biomedical applications over the last few years. Laser treatment has been shown as a promising technology for the generation of functional, inter alia, superhydrophobic surfaces. In this study a picosecond Yb-YAG laser was assigned for the generation of superhydrophobic characteristics on a steel alloy with application in surgical instrumentation. Regarding the ablation energy threshold of about 6 μJ for the given pulse width and laser beam characteristics and by assigning a suitable combination of microstructure kinematics and laser processing conditions a persistent hierarchical pattern is mapped over the laser-radiated surfaces. The average measured contact angle on the laserradiated surfaces was about 150°, which indicates their superhydrophobic properties.
Avoiding non-linearity of optically pumped magnetometer MEG within an actively shielded two-layer mu-metal room
Authors: Sander Tilmann H. , Marhl Urban , Jazbinšek Vojko 
Published: December 2021

Abstract
Some optically pumped magnetometer (OPM) sensors available for biomagnetic investigations have a linear range limited to +- 1 nT due to the specific properties of their open loop operation. In a two-layer magnetically shielded room of type Ak3b/Vacoshield Advanced with an external active compensation we studied how much sensor movement is allowed until amplitudes exceed the linearity range. Intentional movements were performed by a subject wearing an OPM-MEG sensor array. It was found that movements of 8 cm did yield non-linear amplitudes, but a reduction of the movement in half already preserves linearity. Despite movements, the heartbeat was found to generate a periodic signal, although the generating mechanism could not be identified so far.
Use of a trained denoising autoencoder to estimate the noise level in the ECG
Authors: Samann Fars , Schanze Thomas 
Published: December 2021

Abstract
Noise level estimation plays an important role in many applications of signal and image processing, like denoising, compression and detection. Recently, deep neural networks have also been increasingly used for this purpose. In this paper, we develop an effective algorithm of noise level estimation of ECG segments based on trained denoising autoencoder (DAE) with a statistical thresholding method. An important observation is that a well-trained DAE model provides a clean representation of the corrupted training dataset. Two identical cascaded trained DAE models are considered to estimate the statistical properties, e.g., mean and standard deviation, from the trained DAE outputs after applying noise free aligned and jittered training dataset respectively. Two statistical thresholds are calculated from these statistical properties to classify whether the ECG segment is noise-free or jittered or noisy segment. The accuracy of the proposed method is quite promising in classifying and estimating unknow noise level.
Quantification of noncircular stent expansion after TAVR into a pathological annulus and its impact on paravalvular leakage
Authors: Borowski Finja , Kaule Sebastian , Oldenburg Jan , Öner Alper , Schmitz Klaus-Peter , Stiehm Michael 
Published: December 2021

Abstract
Patients undergoing transcatheter aortic valve replacement (TAVR) may suffer severe clinical complications, caused by paravalvular leakage (PVL) which is defined as leakage between TAVR and aortic annulus. PVL is often facilitated by a severely calcified annulus. This limits the expansion of a self-expandable TAVR stent. To assess TAVR performance in terms of leakage, measurement of regurgitation fraction in a pathophysiological annulus is recommended according to ISO 5840. For this purpose, a configuration of a circular annulus with a calcification nodule has been proposed in the recently published ISO 5840. The impact of the proposed pathophysiological annulus model on the expansion of self-expandable TAVR stents and on the regurgitation fraction was investigated in this study. For this purpose, two commercially available selfexpandable TAVRs (Evolut R and Portico) were implanted in a calcified annulus model. Circular expansion of the TAVR stents was investigated based on μCT scans of the implanted TAVR. The calcification-induced area in which retrograde flow can occur during diastole was detected. These results were then compared with the experimentally determined regurgitation fraction obtained from pulse duplicator tests. The results of the μCT scans showed a continuous leakage area in the region of the annulus for the Evolut R compared to a locally larger leakage area of the Portico, which, however, reattaches to the annulus in the distal inflow region. The hydrodynamic measurements confirmed a smaller leakage in the pathological annulus for the Portico. In summary, it can be assumed that a continuous leakage area in the TAVR stent inflow region encourages the PVL of TAVR.
Accuracy measurement of HoloLens2 IMUs in medical environments
Authors: Matyash Ivan , Kutzner Robin , Neumuth Thomas , Rockstroh Max 
Published: December 2021

Abstract
As augmented reality devices become more available, collaborative work in the augmented space is expected to increase. Knowing the position of participants allows for realistic interaction rather than passive participation. The HoloLens 2’s camera and IMUs fuse data to locate the device. In this paper, accuracy and repeatability of the HoloLens2 position finding was analysed to provide a quantitative measure of pose repeatability and deviation from a path while in motion. Deviation from a circular path was found to be below 5 mm per 628 mm travelled.
Investigation of biocompatible Parylene as triboelectric layer for wearable energy harvesting
Authors: Selbmann Franz , Baum Mario , Bobinger Marco , Gottwald Markus , Wiemer Maik , Kuhn Harald 
Published: December 2021

Abstract
Triboelectric nanogenerators (TENGs) are energy converters or energy harvesters that convert mechanical motion into electrical energy on the basis of their material properties. A particular advantage of the TENG is its ability to convert small, low-frequency and random mechanical movements that are relevant for body movements and wearable applications. Within the presented study, different Parylene types were analysed as the dielectric material in TENG and found to be promising with respect to providing high output voltages and powers, respectively. Besides the verification of the usability of Parylene for TENG and its superior triboelectric properties, also significant differences were found between the Parylene types.
The In Situ Human Dental Implantome: A First Appraisal
Authors: Sowislok Andrea , Weischer Thomas , Jennissen Herbert P. 
Published: December 2021

Abstract
Protein adsorption is the first fundamental interaction between the human body and a foreign surface. The sum of all proteins in this adherent proteinaceous layer comprises the implant proteome. The in situdental implant proteome (implantome) was eluted from four implants of two wettabilities after a 2-min dipping in the humor operationis of maxillar tooth sockets. A mean number of 2056 different polypeptides per implant were identified according to the Xcorr method (Xcorr score ≥ 1.5, n ≥ 2 peptides). In the top 12 proteins comprising ca. 47% of the total abundance, cell-free hemoglobin (26.7%) was the most abundant, followed by fibrinogen (6.4%) and serum albumin (1.8%) with additional 1,800 lower abundance polypeptides, which contained ca. 34 salivary and a similar number of autoimmunogenic polypeptides. Selective enrichment of cell-free hemoglobin on the implant vs. albumin was estimated to 270 fold
Utilizing direct-initiation of thiols for photoinitiator-free stereolithographic 3D printing of mechanically stable scaffolds
Authors: Kreuels Klaus , Bosma David , Nottrodt Nadine , Gillner Arnold 
Published: December 2021

Abstract
The automated production of artificial biological structures for biomedical applications continues to gather interest. Different fields of science are combined to find solutions for the arising multidimensional problems. Additive manufacturing in combination with material science provides one solution for the biological issues around 3D cell culture and construction of living tissues. Here, we present the photoinitiator-free stereolithographic fabrication of thiol-ene polymers with microarchitectures in the range of tens of microns for scaffolds up to the millimeter scale. Scaffolds composed of cubic unit cells were designed using computer-aided design (CAD) and subsequently 3D printed with a custom-made laser stereolithography setup. The process parameters were determined step by step with increasing complexity and number of parameters. Gained insights were applied to the fabrication of 3D printed test specimens. The quality of the 3D printed parts was evaluated by measuring the porosity and optical microscopy images. Furthermore, the mechanical properties of the scaffold structures were characterized using compression testing and compared with the bulk material revealing a lower capacity to bear load but higher flexibility. In this study, we demonstrate the advantages of combining the high-precision, freeform fabrication of stereolithography with a biocompatible material for the fabrication of complex microarchitectures for biomedical applications
Electrodermal Activity Based Emotion Recognition using Time-Frequency Methods and Machine Learning Algorithms
Authors: Rao Veeranki Yedukondala , Ganapathy Nagarajan , Swaminathan Ramakrishnan 
Published: December 2021

Abstract
In this work, the feasibility of time-frequency methods, namely short-time Fourier transform, Choi Williams distribution, and smoothed pseudo-Wigner-Ville distribution in the classification of happy and sad emotional states using Electrodermal activity signals have been explored. For this, the annotated happy and sad signals are obtained from an online public database and decomposed into phasic components. The time-frequency analysis has been performed on the phasic components using three different methods. Four statistical features, namely mean, variance, kurtosis, and skewness are extracted from each method. Four classifiers, namely logistic regression, Naive Bayes, random forest, and support vector machine, have been used for the classification. The combination of the smoothed pseudo-Wigner-Ville distribution and random forest yields the highest F-measure of 68.74% for classifying happy and sad emotional states. Thus, it appears that the suggested technique could be helpful in the diagnosis of clinical conditions linked to happy and sad emotional states.
Gestimmt sein
Authors: Griffero Tonino 
Published: December 2021

AbstractThe boom in new theories of resonance is most certainly due to an intellectual atmosphere closely linked to the so-called “affective turn” in the humanities. The paper compares some theories of resonance or responsivity such as Thomas Fuchs’ phenomenological-psychopathological analysis of resonance and Bernhard Waldenfels’ phenomenology of responsivity with a sociological research on resonance by which Hartmut Rosa aims at contrasting the capitalist dictatorship of the growth-acceleration-innovation triad and the resulting loss of bodily resonance in the modern age, and above all with Hermann Schmitz’s (neo) phenomenology idea of felt-bodily (leiblich) communication. My aim is to show that by providing a neophenomenological approach to atmospheric perception – viewed as an affective and pre-reflexive bodily communication triggered by a spatial feeling whose sounding board is our Leib – a pathic aesthetics can assign both a diagnostic and a therapeutic value to the concept of resonance. This furthermore means that a sociology also attentive to the bodily and pre-linguistic dimension and a phenomenology also attentive to situative and historical-collective dimensions, both being able to focus on the pathicity of everyday life, may find an unexpected but promising point of contact.
Edgar Zilsels „Sozialismus 1943“ im Kontext
Authors: Fleck Christian 
Published: December 2021

Abstract
In the summer of 1943 Edgar Zilsel resigned from his membership in the exile organization of Austrian Social Democrats, a political movement he had joined as a young man back in Vienna. Zilsel (1891–1944) is known as an innovative scholar bridging philosophy, history and sociology of science, and belonging to the so-called left wing of the Vienna Circle of Logical Emipricism. Details of his political convictions are less recognized. A recently detected manuscript illuminates his worldview: His resignation letter had been accompanied by a short exposition of his interpretation of socialism near the end of World War II. The article introduces Zilsel, his life and work and publishes for the first time Zilsel’s statement from 1943.
Frequency regulation of wind energy integrated power system using a novel optimized type II fuzzy tilted integral derivative controller
Authors: Sinha Sayantan , Mallick Ranjan Kumar , Panda Gayadhar , Nayak Pravati , Bhoi Ashok 
Published: December 2021

AbstractThe prime objective of the proposed research work is to study the frequency response of a wind plant integrated two area power system under sudden load disturbances when considered under deregulated market environment. The thermal power system has been modelled with suitable generation constraint and governor dead bands. Erratic behaviour of wind power makes the power system very sensitive to frequency deviations and proper frequency control is needed for stability. A new tilted integral derivative controller (TID) with type II fuzzy controller is considered as secondary controller for minimizing frequency fluctuations. The gains of the controller are set at an optimal value with the help of newly designed hybrid Dragonfly algorithm–Whale optimization algorithm for proper control action. System dynamic performance with and without renewable penetration is studied and robustness of the proposed controller is established under various market conditions and varying renewable power integration.
Kierkegaard: A Seducer Resorting to Irony, Comic Jest and Humor
Authors: Yaguri Tami 
Published: December 2021

Abstract
While the role of the comic in Søren Kierkegaard’s thought has been thoroughly studied by diverse scholars, in this paper I will ask whether humor in Kierkegaard’s religious sphere amounts to seduction or to temptation. By “seduction” I will mean a luring that can be viewed as positive or neutral, whereas by “temptation” I mean a negative seduction that takes advantage of the tempted fool, leaving him empty-handed. Irony, comic jest and humor are existential categories in Kierkegaard’s three spheres of existence. Irony and comic jest play a seductive role and can be regarded as neutral or even positive. In the religious sphere, humor can be assessed as temptation. Kierkegaard humorously lures the one who wishes to believe. With humor, one is readying oneself for a leap of faith. The leap may fail; one can fall, crash, and be left empty-handed.
Effect of antiblock and slip additives on the properties of tubular quenched polypropylene film
Authors: Melkar Ashwith , Kumar Ravi , Singh Vishwa Pratap , Singh Priyanka , Samanta Satyajit , Banerjee Saikat 
Published: December 2021

Abstract
In the present investigation, silica and talc were used as antiblock additives with slip additive to investigate their effects on tubular quenched polypropylene (TQPP) film properties. Polypropylene (PP) powder was compounded with additives in twin-screw extruder and subsequently processed through TQPP machine to prepare the films. Tear and tensile properties [in machine direction (MD) and transverse direction (TD)] and surface properties of the produced TQPP films were investigated in terms of optics and coefficient of friction (CoF). The effect of conditioning time on CoF was also studied. Addition of slip agent alone to PP did not show any significant change in tear strength, CoF and tensile properties, whereas CoF reduced drastically by adding both slip and antiblock agents in combination. Reduction in CoF values were found to be more pronounced in the presence of silica-based antiblock compared to talc-based antiblock. Film surface morphology was further examined by field-emission scanning electron microscopy. The tear strength and the gloss of TQPP film decreased slightly in presence of only antiblock agents, but the tensile strength was found to increase. It was also found that tensile properties of TQPP films were superior in silica-based formulation, whereas tear strength was better in talc-based formulation in MD and TD.
Improving the rheological properties of water-based calcium bentonite drilling fluids using water-soluble polymers in high temperature applications
Authors: Liu Jinliang , Zhou Fengshan , Deng Fengyi , Zhao Hongxing , Wei Zhongjin , Long Wenjun , Evelina Amutenya , Ma Cunfa , Chen Sinan , Ma Liang 
Published: December 2021

Abstract
Most of bentonite used in modern drilling engineering is physically and chemically modified calcium bentonite. However, with the increase of drilling depth, the bottom hole temperature may reach 180 °C, thus a large amount of calcium bentonite used in the drilling fluid will be unstable. This paper covers three kinds of calcium bentonite with poor rheological properties at high temperature, such as apparent viscosity is greater than 45 mPa·s or less than 10 mPa·s, API filtration loss is greater than 25 mL/30 min, which are diluted type, shear thickening type and low-shear type, these defects will make the rheological properties of drilling fluid worse. The difference is attributed to bentonite mineral composition, such as montmorillonite with good hydration expansion performance. By adding three kinds of heat-resistant water-soluble copolymers Na-HPAN (hydrolyzed polyacrylonitrile sodium), PAS (polycarboxylate salt) and SMP (sulfomethyl phenolic resin), the rheological properties of calcium bentonite drilling fluids can be significantly improved. For example, the addition of 0.1 wt% Na-HPAN and 0.1 wt% PAS increased the apparent viscosity of the XZJ calcium bentonite suspension from 4.5 to 19.5 mPa·s at 180 °C, and the filtration loss also decreased from 20.2 to 17.8 mL.
A sociolinguistic study of address terms in a Nigerian university’s staff club
Authors: Mensah Eyo O. 
Published: December 2021

AbstractThis article explores the sociopragmatic functions of address terms in social interactions at the University of Calabar Senior Staff Club. It takes into perspective the metalinguistic categories of address terms, their motivations, and the cultural and sociolinguistic parameters that determine their choice among Club members. The study is rooted in social identity theory and community of practice (CoP) analytical framework as are theorized in contemporary sociolinguistic literature. The study identifies nicknames, titles, acronyms, formulaic appellations, clipped personal names and extended personal names as the primary types of address terms in the Club, and articulates that the use of address terms is a social construction of identity that enacts intimacy, fosters collective belonging, and enhances solidarity. Conversely, address terms can also reinforce social division and inequality given the hierarchical structure of the Club which does not license reciprocal use of some address terms. The study concludes that address terms are a site of highly creative use of language which is reflexively framed through humour, clipping, lengthening, language play and other linguistic devices. Generally, address terms provide mechanisms for members to bond socially and adapt flexibly to the socio-academic environment of the Club.
Studies on nucleation and crystal growth kinetics of plutonium(IV) oxalatex
Authors: Li Chuanbo , Wang Bo , Li Xiang , Yan Taihong , Zheng Weifang 
Published: December 2021

Abstract
A new method is developed to calculate the dilution ratio N of the two reactant solutions during nucleation rate determination. When the initial apparent supersaturation ratio S

N
= f(N) in the dilution tank is controlled between 1.66 and 1.67, the counted nuclei is the most, both nuclei dissolving and secondary nucleation avoided satisfactorily. Based on this methoed, Plutonium(IV) oxalate is precipitated by mixing equal volumes of tetravalent plutonium nitrate and oxalic acid solutions. Experiments are carried out by varying the supersaturation ratio from 8.37 to 22.47 and temperature from 25 to 50 °C. The experimental results show that the nucleation rate of plutonium(IV) oxalate in the supersaturation range cited above can be expressed by the equation R

N

= A

N
exp(−E

a

/RT)exp[−B/(ln S)2], where A

N
= 4.8 × 1023 m−3 s−1
, and E

a
= 36.2 kJ mol−1, and B = 20.2. The crystal growth rate of plutonium(IV) oxalate is determined by adding seed crystals into a batch crystallizer. The crystal growth rate can be expressed by equation G(t) = k

g
exp(−E’

a

/RT) (c − c
eq)
g
, where k

g
= 7.3 × 10−7 (mol/L)−1.1(m/s), E’
a
= 25.7 kJ mol−1, and g = 1.1.