bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prognostic implications of unrecognized myocardial infarction before elective percutaneous coronary intervention
Authors: Nogami Kai , Hoshino Masahiro , Kanaji Yoshihisa , Sugiyama Tomoyo , Misawa Toru , Hada Masahiro , Yamaguchi Masao , Nagamine Tatsuhiro , Teng Yun , Ueno Hiroki , Matsuda Kazuki , Sayama Kodai , Kakuta Tsunekazu 
Published: December 2022

AbstractUnrecognized myocardial infarction (UMI) is associated with adverse outcomes. This prospective, single-center study elucidated the prevalence and prognostic significance of UMI before elective percutaneous coronary intervention (PCI) using delayed-enhancement cardiac magnetic resonance (DE-CMR). We enrolled 236 patients with stable coronary artery disease who underwent DE-CMR before elective PCI. The prevalence of UMI and the association of clinical and CMR-derived variables with major adverse cardiac events (MACE), defined as cardiovascular death, nonfatal MI, hospitalization for congestive heart failure, and unplanned late revascularization, were assessed. Final analysis revealed that 63/213 (29.6%) patients had UMI. Target territory UMI was observed in 38 patients (17.8% of the total cohort, 60.3% of patients with UMI). UMI was significantly associated with sex, diabetes mellitus, left ventricular ejection fraction, SYNTAX score, and fractional flow reserve in the target vessels. During follow-up (median, 23 months), MACE occurred in 17 (27.0%) patients with UMI and 17 (11.3%) without UMI (P = 0.001). Multivariable modeling revealed that UMI (hazard ratio: 2.18, 95%CI, 1.10–4.33, P = 0.001) was an independent predictor of MACE. Kaplan–Meier analysis indicated that the presence of UMI was significantly associated with a higher incidence of MACE. UMI was independently associated with a greater risk of MACE after successful PCI.
Effects of Affix Type and Base Word Transparency on Students' Performance on Different Morphological Awareness Measures
Authors: Apel Kenn , Henbest Victoria S. , Petscher Yaacov 
Published: December 2022

Purpose:
We examined whether affix type and base word transparency explained variation in third- through sixth-grade students' performance on a number of morphological awareness tasks.

Method:

Third- through sixth-grade students (
n
> 500 at each grade) completed morphological awareness tasks from the Morphological Awareness Test for Reading and Spelling, which represent the ways individuals may use their morphological awareness to support reading and spelling. Explanatory item response models were used to understand the role of affix type and base word transparency on students' performance on six morphological awareness tasks.

Results:

For all grades, 73%–83% of variance in students' performance was due to differences across individual items. Furthermore, when task effects, affix type, and base word transparency were included simultaneously in the model, affix type was not a significant predictor; there was a significant effect of base word transparency and task. Specifically, the probability of a correct response was greater on task items in which inflected or derived words were transparent with their base word (e.g.,
friend
>
friendly
) compared to items in which there was a shift in both the phonological and orthographic aspects of the base word (e.g.,
attend
>
attention
).

Conclusions:
These findings emphasize the importance of considering base word transparency when assessing students' morphological awareness skills with less emphasis on affix type, at least for third- through sixth-grade students. Our results also point to the importance of administering a variety of morphological awareness tasks to fully capture an individual's morphological awareness skills. Collectively, researchers and practitioners should ensure assessment items on multiple measures of morphological awareness vary in their base word transparency to potentially capture a range of student performances.
Study on non‐uniformity and dynamic fracture characteristics of GIL tri‐post insulators considering Al2O3 sedimentation
Authors: Li Jin , Liu Songtao , Liang Hucheng , Hao Liucheng , Wang Yaxiang , Du Boxue 
Published: December 2022

AbstractTri‐post insulators in gas‐insulated transmission line (GIL) are usually fabricated with high mass fraction of micron aluminum oxide (Al2O3), which will unavoidably settle under the action of gravity during the preparation process and seriously affect the uniformity. A model of filler sedimentation in epoxy resin composite materials was proposed based on the particle size analysis and Stokes' Law. Some scaled tri‐post insulators were prepared and tested by slicing. It is determined that the position of density concentration is the lower side of the two lower posts and the upper interface between the insulator and the conductor. The density ranges from 2.144 to 2.346 g/cm3. The dynamic fracture simulation model of insulator was established and it is found that the insulator fracture occurs at the interface of upper post/insert under radial load, which is verified by experiments. By comparing the influence of sprue position on the density distribution, it is found that the uniformity of insulators is increased by 13.7% by forward pouring compared with reverse pouring. This research develops an accurate method for simulating the filler sedimentation and the fracture process in epoxy‐based insulators, which is helpful for the improvement of mechanical reliability of GIL.
Preimage attacks on reduced‐round Keccak hash functions by solving algebraic systems
Authors: Pei Junling , Chen Lusheng 
Published: December 2022

AbstractIn this paper, improved preimage attacks are presented on 3‐round Keccak‐256 and Keccak‐512 and 4‐round Keccak‐256 based on algebraic methods. The authors propose some new properties about the components of Keccak permutation, reconsider the existing preimage attacks, and further refine the linearisation processes of quadratic bits to lower the complexities. For 3‐round Keccak‐256 and Keccak‐512, priority is given to values with higher probability for quadratic bits, such that the guessing complexities decrease from slightly more than 265 and 2440 to 264.79 and 2424, respectively. For preimage attack on 4‐round Keccak‐256, some strategies of saving degrees of freedom are applied to solve Boolean multivariate quadratic systems and reduce the guessing complexity from 2196 to 2188.
A modified submodule of modular multilevel converter using active power decoupling method for reducing capacitor voltage ripple under low‐frequency operation
Authors: Nguyen Van‐Thang , Kim Ji‐Won , Park Jung‐Woo , Lee Jun‐Min , Park Byoung‐Gun 
Published: December 2022

AbstractIn this paper, a modified submodule (MSM) method is proposed to reduce capacitor voltage fluctuation by integrating a bidirectional buck‐boost type active power decoupling (APD) circuit into each SM for the low‐frequency operation of a converter system. The capacitor voltage fluctuation of the proposed MSM‐MMC can be significantly reduced compared to conventional SMs with the same capacitance by transferring the low‐frequency ripple power components to the auxiliary energy storage capacitor, resulting in a lower voltage fluctuation of the main capacitor in the SM, which requires a lower total SM capacitance. Additionally, a closed‐loop controller is proposed to control the APD capacitor voltages by inheriting the advantages of the repetitive controller and proportional‐integral (PI) controller to enhance the performance of SM capacitor voltage ripple suppression. The method can improve the start‐up performance of medium voltage drives without injecting high‐frequency components, which can avoid the common‐mode voltage imposed on the AC side of the system. The operating principle, auxiliary capacitor voltage control, and capacitor voltage ripple suppression control of the proposed MSM‐MMC method are analyzed in detail. The feasibility of the proposed method has been confirmed by simulation results based on case studies using MATLAB/SIMULINK software and further verified with hardware‐in‐the‐loop simulation (HILS) using the real‐time simulator OPAL‐RT platform.
Laparoskopische Ovariektomie bei einer Mutterkuh
Authors: Stahl Lydia , Froels Coco , Sickinger Marlene 
Published: December 2022

ZusammenfassungEine 13,25 Jahre alte Grauvieh-Mutterkuh wurde im Anschluss an eine Dystokie mit der Bitte um Kastration des Tieres an der Klinik für Wiederkäuer der Justus-Liebig-Universität Gießen vorgestellt. Die Kuh hatte bis zu diesem Zeitpunkt bereits 10 lebende Kälber geboren und wurde im Herdenverband mit Bulle auf der Weide gehalten. Da der Besitzer keine weitere Nutzung der Kuh zur Zucht beabsichtigte, dennoch aber der Wunsch zur weiteren Haltung des Tieres bestand, stellte er die Kuh an der Klinik vor. Die Vorstellung des Tieres erfolgte 6 Wochen nach der Kalbung mit Kalb bei Fuß. Das Kalb war von gutem Allgemeinbefinden, gutem Entwicklungs- und Ernährungszustand und wies keine klinischen Auffälligkeiten auf. Die Kuh zeigte sich sowohl in der allgemeinen als auch der speziellen gynäkologischen Untersuchung ohne besondere Befunde. Im Rahmen der transrektalen Untersuchung konnte der Uterus des Tieres unter der Hand versammelt werden und es lag keine Füllung des Organs vor. Der Uterus war schlaff und die Uteruswand wies keine Auffälligkeiten auf. Die Ovarien waren links 3×2x2 cm und rechts 3,5 × 2,5 × 2 cm groß. Es waren links keine Funktionsgebilde und rechts einzelne Follikel palpierbar. Die vaginoskopische Kontrolle ergab keine von der Norm abweichenden Befunde. Aufgrund der physiologischen Puerperalsituation wurde die Kastration der Kuh als laparoskopische Ovariektomie von der linken Flanke aus am stehenden Tier durchgeführt. Die Kuh wies in den Tagen nach der Operation ein ungestörtes Allgemeinbefinden sowie keinerlei Schmerzhaftigkeit bei der transrektalen Palpation der Amputationsstümpfe auf und konnte 2 Tage nach endoskopischer Kastration in den Heimatbestand entlassen werden. Anhand des hier vorgestellten Falles soll zum einen die Technik der Endoskopie-gestützten Ovariektomie demonstriert werden. Andererseits soll gezeigt werden, dass die Kastration von Kühen ein probates Mittel darstellt, Kühe, die nicht mehr für die Zucht genutzt werden sollen, weiterhin im Herdenverband halten zu können. Dies erscheint insbesondere für Mutterkuhhalter und Hobbyhalter von zunehmendem Interesse zu sein.
Individualized Homeopathic Medicines as Adjunctive Treatment of Pediatric Epilepsy: A Double-Blind, Randomized, Placebo-Controlled Trial
Authors: Gupta Bharti , Misra Pankhuri , Karuppusamy Avaranjika , Balamurugan Dharshna , Parewa Maneet , Tomar Maneela , Rai Shruti , Vashishth Himani , Sadhukhan Satarupa , Singh Navin Kumar , Koley Munmun , Saha Subhranil 
Published: December 2022

Abstract
Introduction Epilepsy, one of the most common neurological diseases, contributes to 0.5% of the total disease burden. The burden is highest in sub-Saharan Africa, central Asia, central and Andean Latin America, and south-east Asia. Asian countries report an overall prevalence of 6/1,000 and that in India of 5.59/1,000. We examined whether individualized homeopathic medicines (IHMs) can produce a significantly different effect from placebos in treatment of pediatric epilepsy in the context of ongoing standard care (SC) using anti-epileptic drugs (AEDs).
Methods The study was a 6-month, double-blind, randomized, placebo-controlled trial (n = 60) conducted at the pediatric outpatient department of a homeopathic hospital in West Bengal, India. Patients were randomized to receive either IHMs plus SC (n = 30) or identical-looking placebos plus SC (n = 30). The primary outcome measure was the Hague Seizure Severity Scale (HASS); secondary outcomes were the Quality of Life in Childhood Epilepsy (QOLCE-16) and the Pediatric Quality of Life inventory (PedsQL) questionnaires; all were measured at baseline and after the 3rd and 6th month of intervention. The intention-to-treat sample was analyzed to detect group differences and effect sizes.
Results Recruitment and retention rates were 65.2% and 91.7% respectively. Although improvements were greater in the IHMs group than with placebos, with small to medium effect sizes, the inter-group differences were statistically non-significant – for HASS (F
1, 58 = 0.000, p = 1.000, two-way repeated measures analysis of variance), QOLCE-16 (F
1, 58 = 1.428, p = 0.237), PedsQL (2–4 years) (F
1, 8 = 0.685, p = 0.432) and PedsQL (5–18 years) (F
1, 47 = 0.000, p = 0.995). Calcarea carbonica, Ignatia amara, Natrum muriaticum and Phosphorus were the most frequently prescribed medicines. No serious adverse events were reported from either of the two groups.
Conclusion Improvements in the outcome measures were statistically non-significantly greater in the IHMs group than in the placebos group, with small effect sizes. A different trial design and prescribing approach might work better in future trials.
Trial registration CTRI/2018/10/016027
“Black race”, “Schwarze Hautfarbe”, “Origine africaine”, or “Etnia nera”? The absent presence of race in European pharmaceutical regulation
Authors: Mulinari Shai , Bredström Anna 
Published: December 2022

AbstractCurrent scholarship on race in Europe has described race as an “absent presence”. However, little is known about the dynamics of the absentness and presentness of race, including how various social processes operating at distinct levels (e.g. supranational and national) influence the uses of race and ethnicity concepts. We begin addressing this gap by examining racialised pharmaceutical regulation in the EU and its operationalisation in European countries. We analysed patterns of English-language uses of race and ethnicity terms at the EU level for all new drugs approved in 2014–2018, and systematically compared official translations into 24 languages. We found that “race” was promoted in plain sight and often retained when translated, albeit with much inconsistency across languages, creating peculiar patterns of presentness and absentness of race. Finnish, French, Swedish, and German stood out, as “race” was often translated into ethnicity terms, but even in those languages, “race” lingered despite claims that these countries vehemently opposed “race”. Our findings should inform scholarly and political debates about race, ethnicity, and medicine in Europe that tend to assume, incorrectly, an anti-racialist consensus. There are also policy implications, because prescribers may interpret regulator-approved information about race and ethnicity differently because of inconsistent translations.
The pre-launch on-ground characterization of Mars Multispectral Imager for Subsurface Studies (Ma_MISS) spectrometer for ExoMars rover mission: Spectral calibration
Authors: De Angelis S. , De Sanctis M. C. , Altieri F. , Ferrari M. , Ammannito E. , Novi S. , Dami M. , Barbis A. , Antonacci F. , Villa F. , Ruggiero F. , Fonte S. , Formisano M. , Tinivelli P. , Giardino M. , Mugnuolo R. , Pirrotta S. 
Published: December 2022

The Ma_MISS spectrometer is integrated within the drilling system of the Rosalind Franklin ExoMars rover. This paper reports the on-ground calibration campaign performed on the spectrometer. Here, we focus on the spectral calibration of the instrument. The experimental setup used to carry out calibration is described, and the methods used for data processing and key parameters retrieval are explained. In particular, the spectral parameters such as (i) pixel central wavelengths, (ii) spectral response function, (iii) spectral resolution, (iv) sampling, and (v) range are determined. In a follow-up paper, the linearity and radiometric calibrations are described, while in De Sanctis et al. [Planet. Sci. J. 3, 142 (2022)], the validation of spectral measurements performed on synthetic and natural rock targets is presented.
Patient-specific Cardio-respiratory Motion Prediction in X-ray Angiography using LSTM Networks
Authors: Azizmohammadi Fariba , Navarro Castellanos Iñaki , Miró Joaquim , Segars Paul , Samei Ehsan , Duong Luc 
Published: December 2022

Abstract

Objective. To develop a novel patient-specific cardio-respiratory motion prediction approach for X-ray angiography time series based on a simple long short-term memory (LSTM) model. Approach. The cardio-respiratory motion behavior in an X-ray image sequence was represented as a sequence of 2D affine transformation matrices, which provide the displacement information of contrasted moving objects (arteries and medical devices) in a sequence. The displacement information includes translation, rotation, shearing, and scaling in 2D. A many-to-many LSTM model was developed to predict 2D transformation parameters in matrix form for future frames based on previously generated images. The method was developed with 64 simulated phantom datasets (pediatric and adult patients) using a realistic cardio-respiratory motion simulator (XCAT) and was validated using 10 different patient X-ray angiography sequences. Main results. Using this method we achieved less than 1 mm prediction error for complex cardio-respiratory motion prediction. The following mean prediction error values were recorded over all the simulated sequences: 0.39 mm (for both motions), 0.33 mm (for only cardiac motion), and 0.47 mm (for only respiratory motion). The mean prediction error for the patient dataset was 0.58 mm. Significance. This study paves the road for a patient-specific cardio-respiratory motion prediction model, which might improve navigation guidance during cardiac interventions.
Large-scale anisotropies of extragalactic cosmic rays below the ankle
Authors: Mollerach S. , Roulet E. , Taborda O. 
Published: December 2022

Abstract
We study the anisotropies on large angular scales which can be present in the flux of cosmic rays reaching the Earth from a population of extragalactic sources, focusing on the energy range between the second knee and the ankle. In this energy range the particles are significantly affected by the Galactic magnetic field, which then plays a relevant role in shaping the expected anisotropies. The Galactic magnetic field deflects the cosmic-ray trajectories and thus modifies the anisotropies present outside the halo of the Galaxy, in particular the dipolar one associated with the translational motion of the observer (Compton-Getting effect). Also, due to the Galactic rotation, in the reference frame of an observer at Earth there is an electric component of the Galactic field that produces a small change in the particles' momentum. This acceleration depends on the cosmic-ray arrival direction and it hence induces anisotropies in the flux observed in a given energy range. We analyse the expected amplitude and phase of the resulting dipolar component of the flux and discuss the possibility to explain via these effects the change in the phase of the right-ascension distribution which is observed at energies around 1 EeV.
Utah array characterization and histological analysis of a multi-year implant in non-human primate motor and sensory cortices
Authors: Patel Paras R , Welle Elissa J , Letner Joseph G , Shen Hao , Bullard Autumn J , Caldwell Ciara M , Vega-Medina Alexis , Richie Julianna M , Thayer Hope E , Patil Parag G , Cai Dawen , Chestek Cynthia A 
Published: December 2022

Abstract

Objective. The Utah array is widely used in both clinical studies and neuroscience. It has a strong track record of safety. However, it is also known that implanted electrodes promote the formation of scar tissue in the immediate vicinity of the electrodes, which may negatively impact the ability to record neural waveforms. This scarring response has been primarily studied in rodents, which may have a very different response than primate brain. Approach. Here, we present a rare nonhuman primate histological dataset (n = 1 rhesus macaque) obtained 848 and 590 d after implantation in two brain hemispheres. For 2 of 4 arrays that remained within the cortex, NeuN was used to stain for neuron somata at three different depths along the shanks. Images were filtered and denoised, with neurons then counted in the vicinity of the arrays as well as a nearby section of control tissue. Additionally, 3 of 4 arrays were imaged with a scanning electrode microscope to evaluate any materials damage that might be present. Main results. Overall, we found a 63% percent reduction in the number of neurons surrounding the electrode shanks compared to control areas. In terms of materials, the arrays remained largely intact with metal and Parylene C present, though tip breakage and cracks were observed on many electrodes. Significance. Overall, these results suggest that the tissue response in the nonhuman primate brain shows similar neuron loss to previous studies using rodents. Electrode improvements, for example using smaller or softer probes, may therefore substantially improve the tissue response and potentially improve the neuronal recording yield in primate cortex.
Modeling and Numerical Simulation of Axial Fan for Dry-Wet Combined Cooling System
Authors: Pang Zhanzhou , Sun Taozhi , Cao Yue , Si Fengqi 
Published: December 2022

Abstract
The performance of the fan determines the thermal performance of the combined dry and wet cooling system, but its structure is complex and difficult to express with an accurate mathematical model. This paper takes the axial fan as the research object and combines its structural parameters and characteristic curves to establish an accurate single-channel numerical model of the fan. Based on this, the tangential and radial velocity changes of the airflow passing through the fan are studied, and analyze the influence of fan rotation on the direction of outlet airflow. A piecewise function fitting method with r (the distance between the calculation area and the fan axis) as the independent variable and the tangential and radial velocity at the outlet surface of the fan as dependent variables is proposed to simplify the model. The results show that in the outlet section of the fan, the tangential velocity of the fluid is 1/5 of the speed of the rotating section, and generally decreases with the increase of the distance from the outlet surface, while the tangential velocity of the fluid changes little. In addition, under the same tangent plane, the speed is distributed in a hierarchy with r, which is highly coincident with the fitted curve. The error of the calculation result is less than 2.7%. The model has high reliability. It provides a better idea for the calculation of the coupled fan of the air cooling system.
Modeling and analysis of thermodynamic performance of 6F unit based on Thermoflow
Authors: Pan Weicheng , Zhang Tao , Liu Yubin , Wang Hengtao , Liu Xiu 
Published: December 2022

Abstract
With the continuous development of combined cycle technology, mastering the thermal performance of combined cycle unit is beneficial to the system performance analysis, operation optimization and debugging. In this paper, the mathematical model of each component of the gas-steam combined cycle was established. Thermoflow software was used to calculate the thermodynamic performance of the system, and the influence of inlet temperature and gas turbine load on the thermodynamic performance of the system was analyzed. The results show that the model is reliable and the maximum error is 1.47%. When compressor inlet temperature increases by 10°C, gas turbine power decreases by about 5.8% and power generation thermal efficiency decreases by 0.15%. When the gas turbine load decreases by 10%, the thermal efficiency of combined cycle power generation decreases by 1.4%.