bluuebunny/crossref_metadata_2025_split huggingface dataset:
Data Driven Remaining Life Prediction of Electrolytic Capacitor in DC/DC Converter
Authors: Zhang Chenguang , Ni Junkang , Zhang Xiaobin , Lei Tao 
Published: February 2021

AbstractA remaining useful life prediction model for electrolytic capacitor in DC-DC converter is presented in this paper based on Neural Network method. First, the degradation data of electrolytic capacitor is acquired from mathematical models. Next, the neural network prediction model is established by processing the degradation data of the electrolytic capacitor. Finally, the effectiveness of the developed life prediction model is verified using Matlab/Simulink. This paper provides the basis for the overall life prediction of dc/dc converter.
Research on improving ERT reconstruction precision based on combined algorithm
Authors: Li Shihan , Yan Hua 
Published: February 2021

Abstract
Among the traditional image reconstruction algorithm for ERT (Electrical Resistance Tomography) system, the Landweber algorithm is the most commonly used iterative algorithm, with moderate computation and good reconstruction quality. However, because "soft field" error is usually ignored in reconstruction, there is still much room for improvement in the quality of reconstructed images. Aiming this problem, a combined algorithm is proposed. The Landweber reconstruction results were taken as the initial population position of the particle swarm optimization (PSO). Through the random forest regression model, the "soft field" error prior condition is obtained, and used in the construction of the PSO objective function to eliminate the influence of ignoring the "soft field" error. The simulation experiment results show that the proposed algorithm effectively improves the accuracy of the reconstructed image.
Indonesian sugarcane seed system performance: an assessment from the perspective of institutional and technological innovation support
Authors: Ardana I K , Hartati R S , Wulandari S , Saefudin  , Suhesti S 
Published: February 2021

AbstractProvision of plant seeds involves various stakeholders in a relatively complex supply chain, starting from tracing the source of superior seeds, producing, storing, and distributing to the end user. Research on the performance of the Indonesian sugarcane seed system from the perspective of institutional and technological innovation was conducted from March to October 2018. The survey method with snowball sampling and the multidimensional scaling analysis was used in this study. The results showed that the performance of the Indonesian sugarcane seed system was categorized as “pretty good” with a range of performance indexes in each dimension 54.23 - 73.13 and an average index of 65.89. The highest performance is achieved in the organizational dimension, while the lowest is in the dissemination dimension. The lever for improving the performance of seed institutions is the regulation of tariffs and the carrying capacity of tissue culture laboratory infrastructure, while technology licensing partnerships and training for seed producers are levers from the perspective of supporting technological innovation.
Effect of vanadium on Fe-rich phase, mechanical properties and thermal conductivity of hypoeutectic Al–Si alloy
Authors: Qin Rong , Yan Rui-Fang , Guan Zhi-Ping , Zhang Guang-Qi , Song Jia-Wang , Ren Ming-Wen , Wang Jin-Guo 
Published: February 2021

Abstract
In this paper, the effects of element V addition (0, 0.2, 0.4, 0.6, 0.8 and 1.0 wt%) on microstructures, mechanical properties and thermal conductivity of Al–8Si–0.1Cu–0.6Mg–0.7Fe hypoeutectic alloy in gravity die casting process were investigated. Microstructure analysis indicates that the size of Fe-rich phase in the Al–Si alloy is greatly affected by the contents of element V addition. The modification of element V could decrease the length of needle-like β-Fe phase which has the adverse impact to mechanical properties, and promote the formation of short rod-like α-Fe phase which has the favorable effect on mechanical properties and thermal conductivity. Then, the dependencies of mechanical properties and thermal conductivity on the size of Fe-rich phase of the alloy is revealed. When the content of element V is 0.6%, the length of Fe-rich phase in the alloy reaches the minimum, and correspondingly both the mechanical properties and the thermal conductivity could achieve the optimal level, as comparison with other contents of element V addition. However, excessive V addition would form VSi2 phase and Fe-rich phase with large size, resulting in poor properties of the alloy.
Synthesis of barium hexaferrite templated by nanocrystalline cellulose extracted from luffa acutangula fiber
Authors: Nuruddin Ahmad , Habibullah Achmadun , Adipratama Maria Johana , Purwasasmita Bambang Sunendar 
Published: February 2021

Abstract
Nanocrystalline cellulose templated barium hexaferrite has been prepared by sol-gel auto combustion and calcination method. Nanocrystalline cellulose template of 0, 0.5%, 1.0%, and 1.5% (w/v) were used to synthesize barium hexaferrite. The XRD pattern and TEM observation reveal the crystalline phase formation of hexagonal barium ferrite. Cellulose template changes the microstructure and properties of barium hexaferrite. Adding cellulose template of 0.5% (w/v) produce well-defined hexagonal platelet barium ferrite without impurity while adding more template result in barium hexaferrite containing hematite and excess cellulose template causing the decrease in magnetic properties. The crystallite size reduces with the addition of the cellulose template. The saturation magnetization and magnetocrystalline anisotropy are estimated using the Law of Approach to Saturation magnetization. The maximum values of saturation magnetization and magnetocrystalline anisotropy are 57.43 ± 0.25 emu g−1 and (4.64 ± 0.1) × 105 erg cm−3.
Effect of a cooling method on the structural and mechanical properties of friction stir spot welding with a 2524 aluminum alloy
Authors: Hu Yi-Jie , Sun You-Ping , Zhou Shi-Peng , He Jiang-Mei , Yang Chun-Yang 
Published: February 2021

Abstract
Friction stir spot welding (FSSW) is a clean, environmentally-friendly and cost-effective welding technology. To weld joints with improved mechanical properties, an FSSW experiment with a 2 mm-thick 2524 aluminum alloy sheet was performed to explore the influence of ambient cooling (AC), forced air cooling (FAC), waterflow cooling (WC), and an increasing rotational speed under WC, and to evaluate the welding method with regard to the resulting structural and tensile properties of the joint. The results showed that cooling-assisted welding reduced the width of the heat-affected zone (HAZ) and marginally increased the microhardness of the welding nugget zone (WNZ). The maximum tensile shear load (L) and effective width (W) values were 4673 N and 1958 μm at FAC, respectively, which were higher than the values of 4296 N and 1763 μm found with AC, respectively; in addition, the minimum values were 2946 N and 948 μm with WC, respectively. These results are not consistent with the idea that the joint strength can typically be improved with WC, because water absorbs a large amount of welding heat and reduces the plastic deformation capacity of the structure, thereby decreasing the W and L of the joint. Increasing the rotation speed of the welding tool can increase the heat input, which requires increasing the rotation speed along with WC. L and W reach their maximum values of 7652 N and 3320 μm, respectively, at 2500 r·min−1. As the rotation speed increases, L and W decrease. All joints underwent ductile fracturing, and the dispersion distribution of the second-phase particles at the bottom of the dimple exhibited good performance.
Difference in communication systems explained by balance between edge and node activations
Authors: Takano Masanori , Nakazato Kenichi 
Published: February 2021

Abstract
The trade-off between the number of friendships and the closeness of friendships of humans arises due to the limitations of time and cognitive capacities for communication. This trade-off distinguishes asynchronous text communication through the internet (lightweight communication) from face-to-face communication and the social grooming of primates (elaborate communication). This study modelled communication as messaging flows driven by edge and node activations to investigate micro-mechanisms that realise the trade-off law and the differences between the two types of communications. We observed the emergence of five patterns of social structures depending on the strengths of the two types of activations, namely, edge and node activations. The two patterns that show known statistics on empirical studies, such as the trade-off and power-law distributions of closeness, emerged around a threshold between elaborate and lightweight communications, where network structures qualitatively changed. A balance between edge and node activations shifts one pattern (elaborate communication) to another pattern (lightweight communication). Consequently, relation networks that communicate through lightweight communication become less clustered. These results suggest how communication systems construct different social structures, e.g., the impact of popularising the internet.
Anomalous stepped-hysteresis and T-induced unit-cell-volume reduction in carbon nanotubes continuously filled with faceted Fe3C nanowires
Authors: Xia JiaChen , Guo Jian , Zhang Xi , Lan Mu , Wen Jiqiu , Wang Shanling , He Yi , Xiang Gang , Corrias Anna , Boi Filippo S 
Published: February 2021

Abstract
Ferromagnetically-filled carbon nanotubes have been recently considered important candidates for application into data recording quantum disk devices. Achievement of high filling rates of the ferromagnetic materials is particularly desirable for applications. Here we report the novel observation of carbon nanotubes continuously filled along the capillary with unusual μm-long faceted Fe3C nanowires. Anomalous magnetic features possibly due to strain effects of the crystal facets are reported. Magnetization measurements revealed unusual stepped magnetic hysteresis-loops at 300 K and at 2 K together with an anomalous decrease in the coercivity at low temperature. The observed unusual shape of the hysteresis is ascribed to the existence of an antiferromagnetic transition within or at the boundary of the ferromagnetic facets. The collapse in the coercivity value as the temperature decreases and the characteristic width-enhancement of the hysteresis with the field increasing appear to indicate the existence of layered antiferromagnetic phases, possibly in the strain-rich regions of the nanowire facets. Zero field cooled (ZFC) and field cooled (FC) magnetic curves evidenced presence of magnetic irreversibilities, an indicator of a possible spin-glass-like behavior induced by competing antiferromagnetic and ferromagnetic interactions. Characterization performed with low temperature XRD measurements, further revealed a slight variation in the average Fe3C unit cell parameters, suggesting the absence of additional unit-cell volume induced ferromagnetic transitions at low temperature.
IsoTV: processing and visualizing functional features of translated transcript isoforms
Authors: Annaldasula Siddharth , Gajos Martyna , Mayer Andreas 
Published: February 2021

Abstract

Summary
Despite the continuous discovery of new transcript isoforms, fueled by the recent increase in accessibility and accuracy of long-read RNA sequencing data, functional differences between isoforms originating from the same gene often remain obscure. To address this issue and enable researchers to assess potential functional consequences of transcript isoform variation on the proteome, we developed IsoTV. IsoTV is a versatile pipeline to process, predict and visualize the functional features of translated transcript isoforms. Attributes such as gene and isoform expression, transcript composition and functional features are summarized in an easy-to-interpret visualization. IsoTV is able to analyze a variety of data types from all eukaryotic organisms, including short- and long-read RNA-seq data. Using Oxford Nanopore long read data, we demonstrate that IsoTV facilitates the understanding of potential protein isoform function in different cancer cell types.

Availability and implementation
IsoTV is available at https://github.molgen.mpg.de/MayerGroup/IsoTV, with the corresponding documentation at https://isotv.readthedocs.io/.

Supplementary information
Supplementary data are available at Bioinformatics online.
Negative intersexual genetic correlation for colour pattern in a variable aposematic insect
Authors: Burdfield-Steel Emily , Kemp Darrell J 
Published: February 2021

Abstract
Despite the fact their coloration functions as an aposematic signal, and is thus expected to be under stabilizing selection, hibiscus harlequin bugs (Tectocoris diophthalmus) show an impressive level of variation in their iridescent coloration both within and between populations. To date the heritability of coloration in this species remains unknown. Here we focus on a single population in New South Wales (the southern part of this species’ Australian range), with the greatest colour variation. We reared full-sib families of known pedigree in the laboratory and analysed the extent of iridescent coloration at adulthood. We then looked for evidence of heritability, condition dependence and antagonistic sexual selection acting on colour in this species. We found significant heritability in the extent of iridescent coloration for both sexes, as well as in development time and body size, but no evidence that condition dependence played a role in the determination of adult coloration. There was, however, a sex by genotype interaction for iridescent cover, in the form of a negative intersexual genetic correlation: in families where sons had high iridescent cover the daughters had low, and vice versa. Our results suggest that different selective pressures may act on coloration in males and females of this species.
Complications and survival after hybrid and fully minimally invasive oesophagectomy
Authors: Veenstra M M K , Smithers B M , Visser E , Edholm D , Brosda S , Thomas J M , Gotley D C , Thomson I G , Wijnhoven B P L , Barbour A P 
Published: February 2021

Abstract

Background
Minimally invasive oesophagectomy (MIO) is reported to produce fewer respiratory complications than open oesophagectomy. This study assessed differences in postoperative complications between MIO and hybrid MIO (HMIO) employing thoracoscopy and laparotomy, along with the influence of co-morbidities on postoperative outcomes.

Methods
Patients with oesophageal cancer undergoing three-stage MIO or three-stage HMIO between 1999 and 2018 were identified from a prospectively developed database, which included patient demographics, co-morbidities, preoperative therapies, and cancer stage. The primary outcome was postoperative complications in the two groups. Secondary outcomes included duration of operation, blood transfusion requirement, duration of hospital stay, and overall survival.

Results
There were 828 patients, of whom 722 had HMIO and 106 MIO, without significant baseline differences. Median duration of operation was longer for MIO (325 versus 289 min; P &lt; 0.001), but with less blood loss (median 250 versus 300 ml; P &lt; 0.001) and a shorter hospital stay (median 12 versus 13 days; P = 0.006). Respiratory complications were not associated with operative approach (31.1 versus 35.2 per cent for MIO and HMIO respectively; P = 0.426). Anastomotic leak rates (10.4 versus 10.2 per cent) and 90-day mortality (1.0 versus 1.7 per cent) did not differ. Cardiac co-morbidity was associated with more medical and surgical complications. Overall survival was associated with AJCC stage and co-morbidities, but not operative approach.

Conclusion
MIO had a small benefit in terms of blood loss and hospital stay, but not in operating time. Oncological outcomes were similar in the two groups. Postoperative complications were associated with pre-existing cardiorespiratory co-morbidities rather than operative approach.
Proteinuria in COVID-19
Authors: Mohamed Muner M B , Velez Juan Carlos Q 
Published: February 2021

AbstractUpper respiratory and pulmonary diseases are the primary manifestations of coronavirus disease 2019 (COVID-19). However, kidney involvement has also been recognized and extensively described. A large percentage of affected patients present with acute kidney injury (AKI). However, specific phenotypic aspects of AKI or other renal manifestations of COVID-19 remain sparsely characterized. Many reports indicate that proteinuria can be detected in AKI associated with COVID-19 (CoV-AKI) despite CoV-AKI being largely described as a form of acute tubular injury. On the other hand, individuals of African ancestry with the high-risk APOL1 genotype are uniquely at risk of developing collapsing glomerulopathy when they are infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the entity now known as COVID-19-associated nephropathy (COVAN). Patients with COVAN typically present with nephrotic-range proteinuria. The exact incidence of proteinuria in COVID-19 is unclear due to heterogeneity in the frequency with which proteinuria has been assessed in cases of COVID-19, as well as methodological differences in the way proteinuria is measured and/or reported. In this review we discuss the current evidence of proteinuria as a manifestation of COVID-19 and elaborate on potential pathophysiological mechanisms associated with it.
Cuticular hydrocarbon profiles differ between ant body parts: implications for communication and our understanding of CHC diffusion
Authors: Sprenger Philipp P , Gerbes Lisa J , Sahm Jacqueline , Menzel Florian 
Published: February 2021

Abstract
Insect cuticular hydrocarbons (CHCs) serve as communication signals and protect against desiccation. They form complex blends of up to 150 different compounds. Due to differences in molecular packing, CHC classes differ in melting point. Communication is especially important in social insects like ants, which use CHCs to communicate within the colony and to recognize nestmates. Nestmate recognition models often assume a homogenous colony odor, where CHCs are collected, mixed, and redistributed in the postpharyngeal gland (PPG). Via diffusion, recognition cues should evenly spread over the body surface. Hence, CHC composition should be similar across body parts and in the PPG. To test this, we compared CHC composition among whole-body extracts, PPG, legs, thorax, and gaster, across 17 ant species from 3 genera. Quantitative CHC composition differed between body parts, with consistent patterns across species and CHC classes. Early-melting CHC classes were most abundant in the PPG. In contrast, whole body, gaster, thorax, and legs had increasing proportions of CHC classes with higher melting points. Intraindividual CHC variation was highest for rather solid, late-melting CHC classes, suggesting that CHCs differ in their diffusion rates across the body surface. Our results show that body parts strongly differ in CHC composition, either being rich in rather solid, late-melting, or rather liquid, early-melting CHCs. This implies that recognition cues are not homogenously present across the insect body. However, the unequal diffusion of different CHCs represents a biophysical mechanism that enables caste differences despite continuous CHC exchange among colony members.
Successful resuscitation of acute cardiogenic shock presenting as ventricular fibrillation via Bipella approach: a case report
Authors: Zoltowska Dominika M , Agrawal Yashwant , Nazroo Jean-Yves R , Patel Kirit 
Published: February 2021

AbstractBackgroundThe use of mechanical circulatory support (MCS) in acute myocardial infarction and cardiogenic shock (AMICS) complicated by biventricular failure is poorly discussed in the literature.Case summaryWe present successful treatment of a 52-year-old old man presenting with AMICS following cardiac arrest and prolonged CPR via a Bipella approach for biventricular support and restoration of haemodynamic stability.DiscussionThis case demonstrates the importance of understanding the role of MCS in the management of cardiogenic shock; the value of the cardiac power output and pulmonary artery pulsatility index as haemodynamic metrics to assess the cardiac function of a patient with cardiogenic shock; and the importance of a Bipella MCS approach in high inpatient morbidity and mortality AMICS with biventricular failure.
Regena (Rga), a Drosophila Homolog of the Global Negative Transcriptional Regulator CDC36 (NOT2) from Yeast, Modifies Gene Expression and Suppresses Position Effect Variegation
Authors: Frolov Maxim V , Benevolenskaya Elizaveta V , Birchler James A 
Published: February 2021

Abstract
A mutation in Regena (Rga) was isolated in screens for modifiers of white eye color gene expression. The reduction in the level of the Rga product results in a complex modulation of white mRNA both positively and negatively, depending on the developmental stage. In addition to white, Rga also affects the expression of several other tested genes, with one of them, Vinculin, being regulated in a strong sex-specific manner. Rga was cloned by transposon tagging. Its predicted product lacks any recognized nucleic acid–binding motif but is homologous to a global negative transcriptional regulator, CDC36 (NOT2), from yeast. Rga also acts as a suppressor of position effect variegation, suggesting that a possible function of Rga could be mediation of an interaction between chromatin proteins and the transcriptional complex.
The Murine Misty Mutation: Phenotypic Effects on Melanocytes, Platelets and Brown Fat
Authors: Sviderskaya Elena V , Novak Edward K , Swank Richard T , Bennett Dorothy C 
Published: February 2021

AbstractAlthough the recessive murine mutation misty (m) is well known, its phenotype has never been reported beyond brief descriptions of a dilution of coat color and white spotting of the belly and extremities, suggesting a developmental mutation. A report in abstract has also suggested effects on white fat and body weight. Here, we report effects of the homozygous misty mutation on an unusual combination of three cell types: melanocytes, platelets, and brown fat. Brown fat appeared to be completely absent from all expected locations in neonatal m/m mice. A prolonged bleeding time was observed; platelet count and platelet serotonin and ATP levels were normal, but the level of ADP in m/m platelets was low. Primary cultures and immortal lines of melanocytes from m/m mice showed several abnormalities. There was a marked deficiency in net proliferation, suggesting that the color dilution and spotting in vivo may result from reduced numbers of melanocytes and their precursors. m/m melanocytes were also hyperdendritic in morphology, overproduced melanin, and had deficient responses to the cAMP agonists cholera toxin and melanocyte-stimulating hormone, which normally promote melanin production. The misty gene product may be involved in adenine nucleotide metabolism or signaling.