bluuebunny/crossref_metadata_2025 huggingface dataset:
Cyclophilin A contributes to shikonin-induced glioma cell necroptosis and promotion of chromatinolysis
Authors: Wang Xinyu , Fan Liwen , Wang Xuanzhong , Luo Tianfei , Liu Linlin
Published: August 2022

Shikonin induces glioma cell death via necroptosis, a caspase-independent programmed cell death pathway that is chiefly regulated by receptor-interacting serine/threonine protein kinase1 (RIP1) and 3 (RIP3). Chromatinolysis is considered as one of the key events leading to cell death during necroptosis. It is usually accompanied with nuclear translocation of AIF and formation of γ-H2AX. Cyclophilin A (CypA) is reported to participate in the nuclear translocation of AIF during apoptosis. However, it remains unclear whether CypA contributes to necroptosis and regulation of chromatinolysis. In this study, our results revealed for the first time that shikonin promoted time-dependent CypA activation, which contributed to nuclear translocation of AIF and γ-H2AX formation. In vitro studies showed that knockdown of CypA by siRNA or inhibition of CypA by its specific inhibitor, cyclosporine A (CsA), not only significantly mitigated shikonin-induced glioma cell death, but also prevented chromatinolysis. Mechanistically, activated CypA targeted mitochondria and triggered mitochondrial superoxide overproduction, which then promoted AIF translocation from mitochondria into the nucleus by depolarizing the mitochondria and intensified the formation of γ-H2AX by promoting intracellular accumulation of ROS. Additionally, the CypA in the nucleus can form DNA degradation complexes with AIF and γ-H2AX, which also promote the execution of chromatinolysis. Thus, we demonstrate that CypA contributes to shikonin-induced glioma cell necroptosis and promotion of chromatinolysis.
Learning from Online Video Education (LOVE) improves confidence in fertility treatments: a randomized controlled trial
Authors: Adeleye Amanda , Cruz Katrina , Cedars Marcelle I. , Pasch Lauri , Huddleston Heather
Published: August 2022

Fertility treatments like in vitro fertilization (IVF) or oocyte cryopreservation (OC) require the daily use of injectable gonadotropins and has been associated with treatment burden and attrition from fertility treatment. We conducted a randomized clinical trial to determine (1) whether educational videos about fertility medications improved infertility self-efficacy scale (ISES), fertility quality of life treatment (FertiQoL-T), and Perceived stress scale (PSS) scores and (2) if such videos improved confidence and reduced medication errors during a first ovarian stimulation cycle. Participants were given access to an online portal with randomized access to either placebo control videos focused on an orientation to IVF or experimental videos that reviewed the preparation and administration of medications used during ovarian stimulation in addition to the placebo videos. Participants completed pre and post-treatment questionnaires. 368 patients enrolled and 257 participants completed the study. There were no differences in ISES, FertiQoL-T or PSS scores between the two groups in an intention-to-treat (p = 0.18, 0.72, and 0.92, respectively) or per-protocol analysis (p = 0.11, 0.38, and 0.37, respectively). In the per protocol analysis, participants who watched experimental videos were four-fold more likely to report confidence administering medications OR 4.70 (95% CI: 2.10, 11.1; p < 0.01) and were 63% less likely to make medication errors OR 0.37 (95% CI: 0.14, 0.90; p = 0.03). Participants had similar likelihoods of rating videos as helpful and recommending videos to others (p = 0.06 and 0.3, respectively). Educational videos about fertility medications may not influence psychological well-being but might improve confidence in medication administration and reduce medication errors. Trial registration number: NCT02979990.
Automatic identification of tinnitus malingering based on overt and covert behavioral responses during psychoacoustic testing
Authors: Smalt Christopher J. , Sugai Jenna A. , Koops Elouise A. , Jahn Kelly N. , Hancock Kenneth E. , Polley Daniel B.
Published: August 2022

Tinnitus, or ringing in the ears, is a prevalent condition that imposes a substantial health and financial burden on the patient and to society. The diagnosis of tinnitus, like pain, relies on patient self-report, which can complicate the distinction between actual and fraudulent claims. Here, we combined tablet-based self-directed hearing assessments with neural network classifiers to automatically differentiate participants with tinnitus (N = 24) from a malingering cohort, who were instructed to feign an imagined tinnitus percept (N = 28). We identified clear differences between the groups, both in their overt reporting of tinnitus features, but also covert differences in their fingertip movement trajectories on the tablet surface as they performed the reporting assay. Using only 10 min of data, we achieved 81% accuracy classifying patients and malingerers (ROC AUC = 0.88) with leave-one-out cross validation. Quantitative, automated measurements of tinnitus salience could improve clinical outcome assays and more accurately determine tinnitus incidence.
Iron isotopes constrain sub-seafloor hydrothermal processes at the Trans-Atlantic Geotraverse (TAG) active sulfide mound
Authors: Sahlström Fredrik , Troll Valentin R. , Palinkaš Sabina Strmić , Kooijman Ellen , Zheng Xin-Yuan
Published: August 2022

Sub-seafloor hydrothermal processes along volcanically active plate boundaries are integral to the formation of seafloor massive sulfide deposits and to oceanic iron cycling, yet the nature of their relationship is poorly understood. Here we apply iron isotope analysis to sulfide minerals from the Trans-Atlantic Geotraverse (TAG) mound and underlying stockwork, 26°N Mid-Atlantic Ridge, to trace hydrothermal processes inside an actively-forming sulfide deposit in a sediment-free mid-ocean ridge setting. We show that data for recently formed chalcopyrite imply hydrothermal fluid–mound interactions cause small negative shifts (<−0.1‰) to the δ56Fe signature of dissolved iron released from TAG into the North Atlantic Ocean. Texturally distinct types of pyrite, in turn, preserve a δ56Fe range from −1.27 to +0.56‰ that reflects contrasting precipitation mechanisms (hydrothermal fluid–seawater mixing vs. conductive cooling) and variable degrees of progressive hydrothermal maturation during the >20 kyr evolution of the TAG complex. The identified processes may explain iron isotope variations found in fossil onshore sulfide deposits.
Bis-pyrazolone-based dysprosium(iii) complexes: zero-field single-molecule magnet behavior in the [2 × 2] grid DyIII4 cluster
Authors: Ashebr Tesfay G. , Li Xiao-Lei , Zhao Chen , Yang Qianqian , Tang Jinkui
Published: August 2022

We report the magneto-structural details of two new dysprosium(iii) compounds obtainedviamulti-dentate pyrazolone-based hydrazone ligands, featuring a tetra-nuclear [2 × 2] grid and bi-nuclear defected helicate-like structures.
Point defects and their impact on electrochemical performance in Na0.44MnO2 for sodium-ion battery cathode application
Authors: Rim Chung-Hyok , Jang Chol-Hun , Kim Kwang-Han , Ryu Chol , Yu Chol-Jun
Published: August 2022

First-principles calculations of sodium manganese oxide Na4Mn9O18 with intrinsic point defects show that manganese vacancies and antisites increase the voltage, whereas oxygen vacancies lower the electrode voltage.
Zeolites in catalysis: sustainable synthesis and its impact on properties and applications
Authors: Zhang Hongwei , Samsudin Ismail bin , Jaenicke Stephan , Chuah Gaik-Khuan
Published: August 2022

Sustainable routes for the synthesis of heteroatom zeolites are highly sought after. Their synthesis, properties and catalytic performance are holistically discussed in this mini-review.
Pressure-induced structural transitions, alloying and superconductivity in topological insulators Bi2Te2Se and Bi2Se2Te
Authors: Cheng Hu , Xu Yixuan , Zhou Xuefeng , Gong Yu , Yang Dongliang , Li Xiaodong , Li Yanchun
Published: August 2022

With compression, both Bi2Te2Se and Bi2Se2Te followed the transformation path R3̄m → C2/m → C2/c → Im3̄m. With decreasing pressure from the site-disordered state, partial amorphization were observed in these compounds.
bcc superstructures: RE2RuIn with RE = Sc, Y, Dy-Tm and Lu
Authors: Gulay Nataliya L. , Osthues Helena , Amirjalayer Saeed , Doltsinis Nikos L. , Reimann Maximilian Kai , Kalychak Yaroslav M. , Pöttgen Rainer
Published: August 2022

The intermetallic compounds RE2RuIn with RE = Sc, Y, Dy-Tm and Lu crystallize with a simple bcc superstructure (Pt2ZnCd type).
An anionic Zn-MOF composed of 1D columnar SBUs for highly C2H2/CH4 selective adsorption, dye adsorption and fluorescence sensing
Authors: Chen Jing-Ru , Zheng Li-Na , Meng Xin-Wei , Gao Zhan-Yao , Zhao Jing , Liu Bo , Ding Tao
Published: August 2022

An anionic Zn-MOF composed of 1D columnar SBUs has been successfully constructed using aromatic carboxylic acid and adeninate ligands. The Zn-MOF shows highly C2H2/CH4 selective adsorption, dye adsorption and fluorescence sensing.
Te/SnS2 tunneling heterojunctions as high-performance photodetectors with superior self-powered properties
Authors: Cao Xuanhao , Lei Zehong , Zhao Shuting , Tao Lili , Zheng Zhaoqiang , Feng Xing , Li Jingbo , Zhao Yu
Published: August 2022

The Te/SnS2 tunneling heterojunctions possess interesting type-III band alignment and reverse rectification feature, which can work as high-performance photodetector with excellent self-powered performance.
Towards multi-molecular surface-enhanced infrared absorption using metal plasmonics
Authors: Wagner Marita , Seifert Andreas , Liz-Marzán Luis M.
Published: August 2022

Surface-enhanced infrared absorption (SEIRA) leads to improved detection of polar molecules. Engineering of plasmonic substrates and combination with surface-enhanced Raman scattering (SERS) leads to multi-resonant detection and enhanced sensing.
Green, novel, and one-step synthesis of silver oxide nanoparticles: antimicrobial activity, synergism with antibiotics, and cytotoxic studies
Authors: Lopez-Carrizales Montserrat , Pérez-Díaz Mario A. , Mendoza-Mendoza Esmeralda , Peralta-Rodríguez René D. , Ojeda-Galván Hiram Joazet , Portales-Pérez Diana , Magaña-Aquino Martín , Sánchez-Sánchez Roberto , Martinez-Gutierrez Fidel
Published: August 2022

Mixtures of silver oxide nanoparticles with commercial antibiotics effective against multidrug-resistant bacteria and biocompatible with human cells.
Introducing mesoporous silica-protected calcination for improving the electrochemical performance of Cu@Fe–N–C composites in oxygen reduction reactions and supercapacitor applications
Authors: Kamali Hamed , Mehrpooya Mehdi , Mousavi Seyed Ali , Ganjali Mohammad Reza
Published: August 2022

The use of an mSiO2-protected shell significantly improves the electrochemical performance of Cu@Fe–N–C for the oxygen reduction reaction and supercapacitor applications.
The efficient removal of diclofenac sodium and bromocresol green from aqueous solution by sea urchin-like Ni/Co-BTC bimetallic organic framework: adsorption isotherms, kinetics and mechanisms
Authors: Wang Jia , Su Yue , Lv Shi-Wen , Sun Li-Hui
Published: August 2022

A novel adsorbent based on the nanostructured Ni/Co-BTC bimetallic organic framework (namely Ni/Co-BTC MOF) was successfully prepared by a simple solvothermal method.
Synthesis of core–shell ZnS@C microrods as advanced anode materials for lithium-ion batteries
Authors: Li Qianqian , Zhang Man , Nong Yutong , Pan Qichang , Huang Youguo , Wang Hongqiang , Zheng Fenghua , Li Qingyu
Published: August 2022

Core–shell ZnS@C microrods were synthesized via a simple hydrothermal method. When evaluated as anode materials for LIBs, which can exhibit outstanding cycling performance and rate capability.
One-pot three-component access to 5-hydroxyindoles based on an oxidative dearomatization strategy
Authors: Qiu Hong , Tong Lingfeng , Lin Zhongren , Li Zheyao , Ren Haosong , Wang Teng , Yu Xinhong
Published: August 2022

Zinc iodide-catalyzed one-pot tandem process access to 5-hydroxyindole derivatives based on an oxidative dearomatization strategy is developed.
Metal organic framework encapsulated tamavidin-Gluc reporter: application in COVID-19 spike antigen bioluminescent immunoassay
Authors: Reyes Sherwin , Rizzo Emily , Ting Albert , Dikici Emre , Daunert Sylvia , Deo Sapna K.
Published: August 2022

A laboratory created fusion protein tamavidin-2-Gluc to serve as a universal reporter that was caged using a metal organic framework for prolonged stability at room temperature.
Impact of FM System Use on Acquisition of Phonological Awareness Skills for Children at Risk of Dyslexia: A Preliminary Classroom Study
Authors: Reynolds Gabriella , Werfel Krystal
Published: August 2022

Purpose:

This study evaluated the effects of utilizing a frequency modulation (FM) system during phonological awareness intervention for students at risk for dyslexia in a classroom setting.

Method:

Four first-grade students participated in an adapted-alternating single-case design study. Participants completed intervention targeting two phonological awareness skills and were assigned to wear an FM system during lessons targeting one skill and no FM system during lessons targeting the second skill. Performance was assessed using daily assessments on the skills targeted during intervention and one additional skill.

Results:

Two participants demonstrated quicker and more pronounced improvement on the skill learned while wearing the FM system. The other two participants did not show improvement on any skill.

Conclusions:

For children who made gains as a result of phonological awareness intervention, the FM system was associated with quicker and greater improvement. FM systems show promise as a tool to use during phonological awareness training for at least some children at risk for dyslexia.

Supplemental Material:

https://doi.org/10.23641/asha.20540139
Electrophysiological Examination of Ambient Speech Processing in Children With Cochlear Implants
Authors: Corina David P. , Coffey-Corina Sharon , Pierotti Elizabeth , Bormann Brett , LaMarr Todd , Lawyer Laurel , Backer Kristina C. , Miller Lee M.
Published: August 2022

Purpose:

This research examined the expression of cortical auditory evoked potentials in a cohort of children who received cochlear implants (CIs) for treatment of congenital deafness (
n
= 28) and typically hearing controls (
n
= 28).

Method:

We make use of a novel electroencephalography paradigm that permits the assessment of auditory responses to ambiently presented speech and evaluates the contributions of concurrent visual stimulation on this activity.

Results:

Our findings show group differences in the expression of auditory sensory and perceptual event-related potential components occurring in 80- to 200-ms and 200- to 300-ms time windows, with reductions in amplitude and a greater latency difference for CI-using children. Relative to typically hearing children, current source density analysis showed muted responses to concurrent visual stimulation in CI-using children, suggesting less cortical specialization and/or reduced responsiveness to auditory information that limits the detection of the interaction between sensory systems.

Conclusion:

These findings indicate that even in the face of early interventions, CI-using children may exhibit disruptions in the development of auditory and multisensory processing.
Dual band‐notched ultra‐wideband antenna with T‐shape stub
Authors: Wang Ziqin , Liu Xianglong , Rasool Nouman , Tang Zhengming , Chen Fangyuan
Published: August 2022

An ultra‐wideband (UWB) antenna with dual band‐notched characteristics is proposed in this letter. The fabricated prototype of the proposed antenna has a compact size of 30 × 24 mm which operates at 3 to 14 GHz and attained dual notch‐bands at 3.3 to 3.7 GHz and 5.15 to 5.825 GHz. The result shows that the proposed antenna is compact, easy to fabricate and provides good characteristics in radiation patterns and time‐domain behaviours. The simulated and measured results displayed good agreement over the entire operating frequency band. The proposed antenna can be used for wideband frequency requirement systems like indoor positioning.
Robust resource allocation for IRS‐assisted secure cognitive radio networks
Authors: Tang Runzhe , Wu Wei , Wang Yibo , Jiang Huaixuan
Published: August 2022

In this paper, a robust resource allocation problem in an intelligent reflecting surface (IRS) assisted artificial noise (AN)‐aided cognitive radio network is investigated. Considering that the channel state information (CSI) of the eavesdropper channel and interference channel cannot be perfectly known in practice, the aim is to minimise the power consumption of the secondary user transmitter (SU‐TX) by jointly optimising the transmit beamforming and covariance matrix of AN at the SU‐TX as well as the phase shifts of the IRS. The formulated problem is non‐convex and challenging to tackle due to the coupling among multiple variables. An efficient alternative optimisation algorithm to solve it by exploiting the S‐procedure and semi‐definite relaxation. Simulation results demonstrate that the IRS helps in reducing the power consumption significantly even under imperfect CSI conditions.
Analysis and design of a 55–74 GHz ultra‐compact low‐noise amplifier using highly asymmetric transformers
Authors: Becker Maximilian , Morath Helmuth , Schumann Stefan , Ellinger Frank
Published: August 2022

This letter presents a low‐noise amplifier with a 3 dB‐bandwidth, from 55 to 74 GHz, excellent noise performance and low power consumption based on a three‐stage common‐source topology. For the first time to the authors' best knowledge, an analytical equation that also considers the gate–drain capacitance is derived for the employed shunt–series transformer feedback input matching network. To enable shunt–series transformer feedback matching without significant gain reduction a highly asymmetric transformer is designed. Furthermore, a compact transformer‐implemented T‐shaped output matching network is investigated to minimize the required area. To prove these concepts, the circuit has been fabricated in a 22 nm fully depleted silicon‐on‐insulator technology. Thanks to the transformer‐based matching, an ultra‐compact active footprint of 0.039 mm2 is achieved. At a power consumption of 8.4 mW from a 0.41 V supply an average noise figure of 4.8 dB and a peak gain of 14.2 dB has been measured. In‐ and output matching better than −10 dB over the 19 GHz wide 3 dB‐bandwidth are demonstrated.
Multi‐view convolutional neural network‐based target classification in high‐resolution automotive radar sensor
Authors: Kwak Seungheon , Kim Hangyeol , Kim Gun , Lee Seongwook
Published: August 2022

In this study, a target classification method based on point cloud data in a high‐resolution radar sensor is proposed. By using multiple antenna elements arranged in horizontal and vertical directions, pedestrians, cyclists and vehicles can be expressed as point cloud data in the three‐dimensional (3D) space. To perform target classification using the spatial characteristics (i.e. length, height and width) of the target, the 3D point cloud data is orthogonally projected onto the xy, yz and zx planes, respectively, and three types of images are generated. Then, a multi‐view convolutional neural network (CNN)‐based target classifier using those three images as inputs is designed. To this end, a method for synthesising the detection results of three directions in series or in parallel is proposed. The proposed classifier can learn the spatial characteristics of the target by using the detection results of multiple viewpoints. Compared to the CNN‐based classifier that uses only the detection result of a single plane as input, the proposed method shows 4.5%p higher classification accuracy in terms of the target with the lowest classification accuracy. In addition, the proposed multi‐view CNN structure shows improved classification performance and shorter training time compared to the well‐known deep learning methods for image classification.
R Coronae Borealis and dustless hydrogen-deficient carbon stars likely have different oxygen isotope ratios
Authors: Karambelkar V. , Kasliwal M. M. , Tisserand P. , Clayton G. C. , Crawford C. L. , Anand S. G. , Geballe T. R. , Montiel E.
Published: August 2022

Context. R Coronae Borealis (RCB) and dustless Hydrogen-deficient Carbon (dLHdC) stars are believed to be remnants of low mass white dwarf mergers. These supergiant stars have peculiar hydrogen-deficient carbon-rich chemistries and stark overabundances of 18O. RCB stars undergo dust formation episodes resulting in large-amplitude photometric variations that are not seen in dLHdC stars. Recently, the sample of known dLHdC stars in the Milky Way has more than quintupled with the discovery of 27 new dLHdC stars.

Aims. It has been suggested that dLHdC stars have lower 16O/18O than RCB stars. We aim to compare the 16O/18O ratios for a large sample of dLHdC and RCB stars to examine this claim.

Methods. We present medium resolution (R ≈ 3000) near-infrared spectra of 20 newly discovered dLHdC stars. We also present medium resolution (R ≈ 3000 − 8000) K-band spectra for 49 RCB stars. Due to the several free parameters and assumptions in our fitting strategy, we provide wide range estimates on the 16O/18O ratios of seven dLHdC and 33 RCB stars that show 12C16O and 12C18O absorption bands, and present the largest sample of such 16O/18O wide-range values for dLHdC and RCB stars to date.

Results. We find that six of the seven dLHdC stars have 16O/18O < 0.5, while 28 of the 33 RCB stars have 16O/18O > 1. We also confirm that unlike RCB stars, dLHdC stars do not show strong blueshifted (> 200 km s−1) He I 10 833 Å absorption, suggesting the absence of strong, dust-driven winds around them.

Conclusions. Although we only can place wide range estimates on the 16O/18O and these are more uncertain in cool RCBs, our medium resolution spectra suggest that most dLHdC stars have lower 16O/18O than most RCB stars. This confirms one of the first, long-suspected spectroscopic differences between RCB and dLHdC stars. The different oxygen isotope ratios rule out the existing picture that RCB stars represent an evolved stage of dLHdC stars. Instead, we suggest that whether the white dwarf merger remnant is a dLHdC or RCB star depends on the mass ratios, masses and compositions of the merging white dwarfs. Future high resolution spectroscopic observations will help confirm and more precisely quantify the difference between the oxygen isotope ratios of the two classes.
Confirmation of the outflow in L1451-mm: SiO line and CH3OH maser detections
Authors: Wakelam V. , Coutens A. , Gratier P. , Vidal T. H. G. , Vaytet N.
Published: August 2022

Context. The observational counterparts of theoretically predicted first hydrostatic cores (FHSC) have been searched for in the interstellar medium for nearly two decades now. Distinguishing them from other types of more evolved but still embedded objects remains a challenge because these objects have a short lifetime, are small, and embedded in a dense cocoon. One possible lead to finding them is the characterization of the outflows that are launched by these objects, which are assumed to have a low velocity and be small extent.

Aims. We observed the L1451-mm FHSC candidate with the NOEMA interferometer (and complementary IRAM 30m data) in order to study the emission of several molecules.

Methods. Molecular lines were reduced and analyzed with the GILDAS package network, the CASSIS software, and some python packages. A nonlocal thermodynamic equilibrium analysis of the CH3OH detected lines was performed to retrieve the physical conditions of the emitting region around the central source, together with the CH3OH, SiO, CS, and H2CO column densities.

Results. Of the targeted molecules, we detected lines of c-C3H2, CH3OH, CS, C34S, SO, DCN, DCO+, H2CO, HC3N, HDCO, and SiO. One of the methanol lines appears to be a maser line. The detection of this class I maser and the SiO line in L1451-mm support the presence of a low-velocity and compact outflow. The excitation conditions of the thermal lines of methanol are also compatible with shocks (H2 density of ~3 × 106 cm−3 and a temperature higher than 40 K).

Conclusions. Although these low-velocity outflows are theoretically predicted by some models of FHSC, these models also predict the shock temperature to be below 20 K, that is, not evaporating methanol. In addition, the predicted velocities would not erode the grains and release silicon in the gas phase. We therefore conclude that these new observations favor the hypothesis that L1451-mm would be at a very early protostellar stage, launching an outflow nearly on the plane of the sky with a higher velocity than is observed.
Photometric behavior of Ryugu’s NIR spectral parameters
Authors: Longobardo A. , Palomba E. , Galiano A. , Dirri F. , Zinzi A. , D’Amore M. , Domingue D. , Kitazato K. , Yokota Y. , Schroeder S. E. , Iwata T. , Matsuoka M. , Hiroi T. , Takir D. , Nakamura T. , Abe M. , Ohtake M. , Matsuura S. , Watanabe S. , Yoshikawa M. , Saiki T. , Tanaka S. , Okada T. , Yamamoto Y. , Takei Y. , Shirai K. , Hirata N. , Hirata N. , Matsumoto K. , Tsuda Y.
Published: August 2022

Context. JAXA’s Hayabusa2 mission rendezvoused the Ryugu asteroid for 1.5 years to clarify the carbonaceous asteroids’ record for Solar System origin and evolution.

Aims. We studied the photometric behavior of the spectral parameters characterizing the near-infrared (NIR) spectra of Ryugu provided by the Hayabusa2/NIRS3 instrument, that is to say 1.9 µm reflectance, 2.7 and 2.8 µm band depths (ascribed to phyllosilicates), and NIR slope.

Methods. For each parameter, we applied the following empirical approach: (1) retrieval of the equigonal albedo by applying the Akimov disk function (this step was only performed for the reflectance photometric correction); (2) retrieval of the median spectral parameter value at each phase angle bin; and (3) retrieval of the phase function by a linear fit.

Results. Ryugu’s phase function shows a steepness similar to Ceres, according to the same taxonomy of the two asteroids. Band depths decrease with increasing phase angle: this trend is opposite to that observed on other asteroids explored by space missions and is ascribed to the very dark albedo. NIR and visible phase reddening are similar, contrary to other asteroids, where visible phase reddening is larger: this could be due to surface darkness or to particle smoothness. Albedo and band depths are globally uncorrelated, but locally anticorrelated. A correlation between darkening and reddening is observed.
Design and research of a conveying device for metal parts processing
Authors: Wan Zhiqiang , Zhang Qingqing , Zhang Qianbin
Published: August 2022

The utility model relates to a conveying device for processing metal accessories with vibration type chip removal, which comprises an outer frame body, a conveying roller, a support plate, a conveying belt and a sprocket mechanism. The left and right sides of the bottom surface of the outer frame body are fixed with a fixed sleeve, and the internal screw of the fixed sleeve is installed with a second return spring, the top screw of the second return spring is fixed with a support rod, and the top screw of the support rod is fixed with an inner frame body, In addition, the left and right ends of the inner frame main body are internally connected with a conveying roller, the outer side of the conveying roller is fitted with a conveying belt, the inner wall of the upper surface of the conveying belt is fitted with a support plate, and the front and rear ends of the support plate are connected with the screws of the inner frame main body. The conveying device for processing metal parts with vibration type chip removal is provided with a cross bar and an eccentric wheel, so that the metal parts on the conveyor belt can be transported while vibrating, so that the debris and impurities on the surface of the metal parts can be well vibrated off.
Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries
Authors: Xia Jing , Li Shuxiang , Gao Yuan , Zhang Dakui , Li Qiongguang , Wang Yanhong
Published: August 2022

In this research, a facile method was reported to prepare silicon/carbon composites by heating Si nanosheets and coal-based needle cokes in the assistance of binder glucopyranose. The microstructures and electrochemical performances of samples were analyzed. It was found that Si nanosheets adhered to needle cokes forming silicon/carbon composites. Compared with needle cokes, the composites showed higher capacity and initial coulombic efficiency. Also, they improved the cycle stability of silicon materials. The silicon/carbon anode had a reversible capacity of 381.8 mAh/g at a current density of 100 mA/g after 170 cycles. In our work, relatively inexpensive Si nanosheets and coal-based needle cokes with low price were employed as the silicon and carbon sources respectively. Therefore, this method provides a possible strategy to reduce costs of silicon/carbon anodes, accelerating their commercial applications.
Influence of coal mining on the lower Yellow River region and related management countermeasures-- Taking Heze mining area as an example
Authors: Li Xinghua , Zhang Qi , Liu Zhaoping , Yan Jianchi , Zhang kai
Published: August 2022

To realize the ecological protection and high-quality development of the Yellow River basin is related to the centenary project of the Chinese nation. The middle and lower reaches of the Yellow River are rich in coal resources and have a long history of mining. Large-scale coal mining activities lead to the destruction of underground aquifer, surface subsidence and the reduction of cultivated land, which seriously threatens the safety of local ecological environment, land resources and water resources. Luxi coal base Heze mining area, for example, the analysis of coal mining activities and land resources, ecological environment, the contradiction between water resources protection and its causes, and put forward preventive measures, to help alleviate the lower Yellow River coal mining and land resources, ecological environment, water resources protection, to realize luxi mining area and the lower Yellow River ecological environment protection and high quality development is of great significance.
Research on the selection of leading industries in agricultural characteristic towns in Rongchang district, Chongqing
Authors: Wu Gaohai , Wu Wei
Published: August 2022

Small towns with agricultural characteristics are an important entry point to promote the revitalization of rural industries. Establishing leading industries according to local development conditions is crucial to the healthy and sustainable development of agricultural towns. This paper evaluates and analyzes the choice of leading industries in Yuanjue Town, Rongchang District, Chongqing by constructing a hierarchical-principal component model, and draws conclusions. The rationality of the conclusion provides a reference for the selection of leading industries in agricultural characteristic towns in Sichuan and Chongqing.
Give full play to the advantages of emerging media to broaden the path of university publicity work–based on the research and analysis of the operation of a youth media center at a university in Wuhan
Authors: Wu Tongling , Wu Linglong
Published: August 2022

The university is in the front position of ideological work, and its task is arduous, its mission is great. It is a strategic project to do propaganda and ideological work well in universities, which is related to the party’s leadership over colleges and universities, the full implementation of the Party’s educational policy, and the successor of the cause of socialism with Chinese characteristics. This is of great and far-reaching significance for consolidating the guiding position of Marxism in the field of ideology and consolidating the common ideological basis for the united struggle of the whole Party and the Chinese people. Colleges and universities should adapt to the trend of the Times, make good use of modern media platforms, continuously promote the innovation of publicity ideas, methods, and effects lay a solid cultural foundation, carry forward the spirit of colleges and universities, and make colleges and universities become demonstration areas of the construction of spiritual civilization in the new era.
Performance research of VAWT with expandable blades based on savonius turbines
Authors: Gu Qiuyu , Tang Zhipeng , Chang Wanna
Published: August 2022

In order to improve the wind energy utilization of vertical axis wind turbine (VAWT), this paper presents a new structure of VAWT with expandable blades. The blades of the new turbine are symmetrical airfoil NACA0012 instead of curved blades. The blades of the new structure VAWT have open and folded state. While the blades rotate to the windward side, the blades are open and similar to the curved blades of the S-type turbine. While the blades rotate to the leeward side, the blades are folded and similar to the airfoil of the H-type turbine. In this paper, multistream tube theory was used to analyze the movement of the new type VAWT in the flow field, solve the wind speed influencing factors of the model, establish the theoretical formula of wind energy utilization (CP value) of the new type VAWT. And performance of the wind turbine was simulated and calculated by Matlab. Cp value and self-starting performance of the new type VAWT has greatly improved compared with Savonius type wind turbine. The blade of the new type VAWT is constant section in the vertical direction which can be produced by the costless form of straight blade production. The new type VAWT is not only suitable for medium and large wind farm, but also can be well applied in the areas with relatively poor wind energy resources.
Polimerização dos Ácidos Resínicos: Uma Breve Revisão
Authors: Soares Andreia , Pestana Miguel
Published: August 2022

Por destilação da gema (resina) do Pinheiro obtém-se duas frações – a aguarrás (essência de terebintina) e a colofónia (pez). Esta é a fração pesada da gema e, também, o seu principal constituinte, tendo como constituintes ácidos resínicos (90%) e pequenas quantidades de compostos neutros (10%).

Embora a composição dos ácidos resínicos possam variar com a espécie de pinheiro, eles são sobretudo do tipo abiético e, em pequena quantidade, do tipo pimárico.

Estes ácidos tipo abiético são compostos diénicos muito instáveis, o que é evidenciado pelas reações sobre ligações duplas.

A polimerização ocorre pela ação de um ácido forte e/ou calor sobre os ácidos tipo abiético, tendo como resultado das primeiras (as reações com ácidos fortes), a formação de dímeros e de pequenas quantidades de trímeros. Do mesmo modo, também foi descrito a dimerização térmica da colofónia, onde os seus produtos reacionais são ácidos monobásicos diméricos.
A new comprehensive Classification Scheme for ECU Tendon Problems at
the Wrist
Authors: Burda Rastislav , Morochovič Radoslav , Rudnay Maroš , Špaková Timea
Published: August 2022

Based on a systematic review of the literature, description of previous
classification schemes and new anatomical knowledge, a new comprehensive
classification scheme for ECU tendon problems at the wrist is described.
Differentiated Approaches to Treat Lesions of the TFCC Based on new
arthroscopic Classification
Authors: Nakamura Toshiyasu , Takagi Takehilko
Published: August 2022

In this article, pathology of the TFCC lesions, image diagnosis and arthroscopic
examination were described. According to the radiocarpal arthroscopic findings,
TFCC lesions are classified into intra-disc lesions (Class 1), radial lesion
(Class 2), peripheral disc lesions which indicate slight to moderate DRUJ
instability (Class 3) and degenerative lesion (Class 4). The radioulnar ligament
(RUL) lesions that indicate moderate to severe DRUJ instability were classified
with staging system with DRUJ arthroscopic findings (Stage 1 to 5).
Author’s treatment algorism with wrist arthroscopic findings including
DRUJ arthroscopy was demonstrated and along with this algorism, various
arthroscopic and open techniques to treat TFCC injuries were selected and
resulted in success. Precise diagnosis of the TFCC lesions helped to select an
adequate treatment for each lesion.
„Änderungen im Ernährungsverhalten bilden einen der größten Hebel in der planetaren Krise“
Authors: Anke Niklas
Published: August 2022

Etwa 30 Prozent der menschengemachten Treibhausgasemissionen sind dem Ernährungssystem zuzuordnen. Der effektivste Hebel wäre, tierische Produkte deutlich zu reduzieren. Ein Gespräch mit Dr. Lisa Pörtner.
Ernährung neu denken – die Planetary Health Diet im Gesundheitswesen
Authors: Hünninghaus Kristin , Dobos Gustav
Published: August 2022

Auf dem Weg zu einem klimagerechten Krankenhaus spieltauch die Verpflegung der Patient*innen und Mitarbeiter*innen eine wichtige Rolle. Durch die gezielte Auswahlan Lebensmitteln lässt sich nicht nur die Gesundheit jedeseinzelnen Menschen positiv beeinflussen, sondern auch diedes gesamten Planeten. Die sogenannte Planetary HealthDiet ist ein Ernährungskonzept, das die individuelle Gesundheitverbessern und gleichzeitig das Tierwohl fördern, dieUmwelt und Biodiversität schützen kann. Erste Kliniken inDeutschland haben ihr Verpflegungsangebot so umgestellt,dass es einer gesunden und klimafreundlichen Ernährungsweisegerecht wird. Dieser Beitrag stellt die wichtigstenStellschrauben vor, wie sich nachhaltige Ernährung im Gesundheitswesenumsetzen lässt.
Galgant: Vielseitiger Scharfmacher
Authors: Houben Martina
Published: August 2022

Der Echte Galgant (Alpinia officinarum) hat als Gewürzpflanze für Eintöpfe oder Fleischgerichte wegen seines würzig-scharfen Aromas seit langem die Küchen erobert. Doch zunehmend wird man wieder auf die Heilkraft der Wurzel aufmerksam: Warm und heilkräftig – so beschreibt Hildegard von Bingen den Galgant in ihren Schriften. Lange führte er neben seinem engen Verwandten Ingwer (Zingiber officinale) ein Schattendasein. Die aromatische Wurzel gelangt nun jedoch immer stärker in den wissenschaftlichen Fokus und wird in den Medien sogar als Superfood gehandelt. Der Wurzelstock wird in der traditionellen Heilkunde und modernen Phytotherapie bei zahlreichen Indikationen angewendet.
Essen Stroke Risk Score Predicts Clinical Outcomes in Heart Failure Patients with Preserved Ejection Fraction: Evidence from the TOPCAT trial
Authors: Zhu Wengen , Cao Yalin , Ye Min , Huang Huiling , Wu Yuzhong , Ma Jianyong , Dong Yugang , Liu Xiao , Liu Chen , Lip Gregory Y. H.
Published: August 2022

Background Heart failure (HF) with preserved ejection fraction (HFpEF) is associated with increased risks of stroke and other adverse outcomes.

Aims This study sought to determine whether the Essen Stroke Risk Score (ESRS) could predict the risks of adjudicated clinical outcomes in patients with HFpEF from the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) trial.

Methods We evaluated associations of baseline ESRS with clinical outcomes by using the Cox proportional hazard model with competing risk regression. The diagnostic accuracy of the ESRS was assessed using the C-index and calibration data.

Results Of 3,441 HFpEF patients with a mean follow-up of 3.3 years, the risk of stroke ranged from 0.32% per year at an ESRS of 1 to 2 points to 1.71% per year at a score of ≥6 points. Each point increase in ESRS was associated with increased risks of primary composite outcome (hazard ratios [HRs] = 1.31; 95% confidence intervals [CIs]: 1.23–1.40; C-index = 0.68), stroke (HR = 1.33 [95% CI: 1.16–1.53]; C-index = 0.68), myocardial infarction (HR = 1.60 [95% CI: 1.40–1.83]; C-index = 0.75), HF hospitalization (HR = 1.30 [95% CI: 1.20–1.41]; C-index = 0.71), any hospitalization (HR = 1.20, 95% CI: 1.15–1.26; C-index = 0.68), cardiovascular death (HR = 1.32 [95% CI: 1.20–1.44]; C-index = 0.68), and all-cause death (HR = 1.37, [95% CI: 1.28–1.48]; C-index = 0.68). The calibration curves showed that the ESRS had a better agreement between predicted and observed stroke risks compared with the R2CHADS2, CHADS2, or CHA2DS2-VASC stroke scores.

Conclusion The ESRS had modest discriminatory abilities for predicting stroke as well as other adverse outcomes including myocardial infarction, hospitalization, and death in HFpEF patients. ESRS might have better calibration performance than R2CHADS2, CHADS2, or CHA2DS2-VASC in HFpEF at high risk for stroke.

Clinical Trial Registration URL: https://clinicaltrials.gov. Unique identifier: NCT00094302.
Proper condensates and long range order
Authors: Buchholz Detlev
Published: August 2022

Within the framework of the algebra of canonical commutation relations in position space, a long range order between particles in bounded regions is established in states with a sufficiently large particle number. It occurs whenever homogeneous proper (infinite) condensates form locally in the states in the limit of infinite densities. The condensates are described by eigenstates of the momentum operator, covering also those cases where they are streaming with a constant velocity. The arguments given are model independent and lead to a new criterion for the occurrence of condensates. It makes use of a novel approach to the identification of condensates, based on a characterization of regular and singular wave functions.
Observation of unidirectional spin Hall magnetoresistance in amorphous PtSn4/CoFeB bilayers
Authors: Fan Yihong , Cresswell Zach , Guo Silu , Zhang Delin , Peterson Thomas J. , Liu Jinming , Lv Yang , Andre Mkhoyan K. , Wang Jian-Ping
Published: August 2022

Unidirectional spin Hall magnetoresistance (USMR) is a magnetoresistance effect with potential applications to read two-terminal spin–orbit-torque (SOT) devices directly. In this work, we observed a large USMR value (up to 0.7 × 10−11 per A/cm2, 50% larger than reported values from heavy metals) in sputtered amorphous PtSn4/CoFeB bilayers. Ta/CoFeB bilayers with interfacial MgO insertion layers are deposited as control samples. The control experiments show that increasing the interfacial resistance can increase the USMR value, which is the case in PtSn4/CoFeB bilayers. The observation of a large USMR value in an amorphous spin–orbit-torque material has provided an alternative pathway for USMR application in two-terminal SOT devices.
In situ tunable giant electrical anisotropy in a grating gated AlGaN/GaN two-dimensional electron gas
Authors: Wang Ting-Ting , Dong Sining , Li Chong , Yue Wen-Cheng , Lyu Yang-Yang , Wang Chen-Guang , Zeng Chang-Kun , Yuan Zixiong , Zhu Wei , Xiao Zhi-Li , Lu Xiaoli , Liu Bin , Lu Hai , Wang Hua-Bing , Wu Peiheng , Kwok Wai-Kwong , Wang Yong-Lei
Published: August 2022

Materials with in-plane electrical anisotropy have great potential for designing artificial synaptic devices. However, natural materials with strong intrinsic in-plane electrical anisotropy are rare. We introduce a simple strategy to produce extremely large electrical anisotropy via grating gating of a semiconductor two-dimensional electron gas (2DEG) of AlGaN/GaN. We show that periodically modulated electric potential in the 2DEG induces in-plane electrical anisotropy, which is significantly enhanced in a magnetic field, leading to an ultra large electrical anisotropy. This is induced by a giant positive magnetoresistance and a giant negative magnetoresistance under two orthogonally oriented in-plane current flows, respectively. This giant electrical anisotropy is in situ tunable by tailoring both the grating gate voltage and the magnetic field. Our semiconductor device with controllable giant electrical anisotropy will stimulate new device applications, such as multi-terminal memtransistors and bionic synapses.
Diffusion coefficient of ions through graphene nanopores
Authors: Liu Biyuan , Zhou Le , Luo Shuang , Zhou Yanguang , Yang Jinglei , Li Zhigang
Published: August 2022

In this work, we investigate the transport of ions through graphene nanopores driven by concentration gradients through molecular dynamics simulations. The diffusion coefficients, D, of K+ and Cl− are computed for various pore sizes and porosities. It is found that D is sensitive to the pore size when the pore diameter is smaller than 3 nm. For relatively large pores, D remains largely independent of the pore size. The dependence of D on the porosity shows a near-linear relationship. The effects of pore size and porosity on the diffusion coefficient are caused by the free energy barrier at the pore due to the ion–pore molecular interactions and the dehydration of ions. A general scaling law for the diffusion coefficient is also proposed. The results in this work provide useful information for the design and fabrication of nanoporous structures for ion transport.
Multi-beam gun design for an S-band klystron
Authors: Lin Xiaobo , Zhang Rui , Chao Quangui , Xie Bingchuan , Geng Zhihui , Liao Yunfeng , Yang Xiudong
Published: August 2022

This paper introduces the detailed design scheme of a multi-beam electron gun applied to an S-band high power multi-beam klystron. The multi-beam gun adopts a coaxial cavity arrangement, and the total number of electron beams are 40 (19 in the inner layer and 21 in the outer layer). The working voltage of the electron gun is 60 kV, the total current is 300 A (evenly distributed on 40 electron beams), and the single beam perveance is 0.51 μP. The total perveance is 20.4 μP. The cathode loading of the gun is 12 A/cm2, which can meet the requirements of cathode operational lifetime. The beam focusing system uses a periodic reversal permanent magnet to realize miniaturization of the klystron.
Controlling the dynamics of cavity magnon polariton via microwave polarization
Authors: Zhong Lihua , Zhang Chao , Yao B. M.
Published: August 2022

Cavity magnon polaritons (CMPs) are quasiparticles that combine the advantages of high-speed photons and long-lived spins. The coupling between magnons and photons can be tuned to chiral situations by controlling the microwave polarization, which is important to manipulate the asymmetrical energy flow for coherent signal processing. Here, by strongly coupling a magnon mode to the microwave field with controllable polarization from a cross cavity, we realize the flexible control of CMP dynamics via the chiral coupling effect. Such control allows the cavity resonance to evolve into doublet or triplet spectra under zero-detuning condition depending on the left- and right-handed circular or linear polarization at the center of our cross cavity via the phase control technique. In addition to the experimental findings, we establish a harmonic oscillator model that can well describe our results. Furthermore, we display a functionality of nonreciprocal transmission using the chiral condition in coupling. Directional transmission is observed for all CMP triplet modes, exhibiting a significant chiral contrast in both dispersion and amplitude. Our results demonstrate that CMPs built in a cross cavity can realize tunability from microwave polarization and can function as an on-chip device with a one-way energy transfer, which has potential applications in switches, isolators, and logical gates that utilize CMP dynamics.