bluuebunny/crossref_metadata_2025 huggingface dataset:
Electrochemiluminescence biosensor for cardiac troponin I with signal amplification based on a MoS2@Cu2O–Ag-modified electrode and Ce:ZnO-NGQDs
Authors: Wang Beibei , Wang Chao , Li Yuyang , Liu Xuejing , Wu Dan , Wei Qin
Published: September 2022

A sensitive sandwiched electrochemiluminescence (ECL) immunosensor was built for the detection of cTnI. The ECL immunosensor had a low detection limit (2.90 fg mL−1) and wide detection range (10 pg mL−1 to 100 ng mL−1).
A mesoporous silica-based probe with a molecularly imprinted polymer recognition and Mn:ZnS QDs@rhodamine B ratiometric fluorescence sensing strategy for the analysis of 4-nitrophenol
Authors: Luo Jiao , Tan Hongyan , Yang Bin , Chen Donghua , Fei Junjie
Published: September 2022

The ratiometric fluorescent responses of the MIP-coated Mn:ZnS QDs and RB co-doped MSN probe to 4-NP molecules led to the sensitive and selective detection of 4-NP in environmental water samples.
Development of heterogeneous photocatalystsviathe covalent grafting of metal complexes on various solid supports
Authors: Rana Pooja , Kaushik Bhawna , Solanki Kanika , Saini Kapil Mohan , Sharma R. K.
Published: September 2022

Herein, we highlight various covalently grafted photoactive complexes on organic–inorganic supports together with their task-specific applications in organic transformations, CO2conversion, H2generation and pollutant degradation.
An efficient NiCu@C/Al2O3 catalyst for selective hydrogenation of acetylene
Authors: Zhou Shihong , Lu Chenyang , Zhou Wenyu , Bi Yi , Zhou Cailong , Zeng Aonan , Wang Anjie , Tan Luxi , Dong Lichun
Published: September 2022

A NiCu@C core–shell nanostructure supported on Al2O3 delivers superior catalytic performance for selective hydrogenation of acetylene.
Access to quinolinones via DMAP-catalysed cascade reaction of 2-substituted benzoic acids with organic azides
Authors: He Yuan-Yuan , Zhu Mei-Shan , Gao Yang , Hu Xiao-Qiang
Published: September 2022

A facile DMAP-catalysed Curtius rearrangement and intramolecular cyclisation cascade of benzoic acids with organic azides has been achieved for the first time, enabling the efficient synthesis of a range of N–H quinolinones in useful to good yields.
Obstacle-induced giant jammed aggregation of active semiflexible filaments
Authors: Wang Ying , Gao Yi-wen , Tian Wen-de , Chen Kang
Published: September 2022

Active polymers form a giant jammed aggregate on the surface of a circular obstacle through a nucleation process.
Prediction of highly stable two-dimensional materials of boron and phosphorus: structural and electronic properties
Authors: Cheng Puxin , Li Geng , Zeng Shuming , Li Yunlong , Meng Xiangfei , Xu Jialiang
Published: September 2022

Two new 2D BmPn structures, P21/m B1P3 and Cm B2P4, have been predicted with an unbiased structure search based on a particle swarm optimization algorithm.
Self-assembly of heterogeneous bilayers stratified by Au–S and hydrogen bonds on Au(111)
Authors: Muneyasu Riku , Yamada Takashi , Akai-Kasaya Megumi , Kato Hiroyuki S.
Published: September 2022

The self-assembly of heterogeneous bilayers on Au substrates was investigated using atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and infrared reflection absorption spectroscopy (IRAS).
The spin magnetic order of Con+ (n ≤ 5) clusters
Authors: Ferrari Piero , Gómez-Coca Silvia
Published: September 2022

The magnetism of Con+ (n < 5) clusters has been studied using CASSCF/NEVPT2 calculations that correctly describe the experimental results, in contrast to the widely employed DFT calculations, thus providing a solid framework for the study of transition metal clusters.
All-scale hierarchical nanostructures and superior valence band convergence lead to ultra-high thermoelectric performance in cubic GeTe
Authors: Sarkar Debattam , Samanta Manisha , Ghosh Tanmoy , Dolui Kapildeb , Das Subarna , Saurabh Kumar , Sanyal Dirtha , Biswas Kanishka
Published: September 2022

Extreme electronic band convergence and nano/meso-structured phonon scattering leading to ultra-high thermoelectric performance in the near cubic Sb doped GeTe.
Quorum sensing signals from sludge improving the self-assembly of electrode biofilms in microbial fuel cells for chloramphenicol degradation
Authors: Wu Xiayuan , Zhuang Xinglei , Lv Zuopeng , Xin Fengxue , Dong Weiliang , Li Yan , Jia Honghua
Published: September 2022

AHLs in stratified EPS accelerated self-assembly of CAP-degrading electrode biofilms with superior physicochemical characteristics and mutualistic microbial communities in MFCs.
The modified outer membrane protein Amuc_1100 of Akkermansia muciniphila improves chronic stress-induced anxiety and depression-like behavior in mice
Authors: Cheng Rongrong , Zhu Haiyan , Sun Yan , Hang Tianrong , Zhang Min
Published: September 2022

Amuc_1100Δ80 can improve anxiety and depression-like behavior of mice caused by chronic stress through the microbiota–gut–brain axis.
(−)-Epicatechin exerts positive effects on anxiety in high fat diet-induced obese mice through multi-genomic modifications in the hippocampus
Authors: Kang Jiye , Oteiza Patricia I. , Milenkovic Dragan
Published: September 2022

(−)-Epicatechin exerts complex genomic modifications in the hippocampus, counteracting changes driven by consumption of the high fat diet and/or associated obesity.
A new strategy to dissolve long-chain surfactants in water at low temperatures
Authors: Wolfrum Stefan , Braun Lydia , Engelhardt Nadine , Engert Susanne C. , Tropsch Jürgen , Kunz Werner , Kellermeier Matthias
Published: September 2022

Choline alkoxylates were synthesised and used to solubilise long-chain surfactants under ambient conditions. In this way, so far underutilised natural feedstocks could be leveraged for the design of sustainable and efficient cleaning formulations.
Direct conversion of glyceric acid to succinic acid by reductive carbonylation
Authors: Zhang Linfeng , Ma Changpo , Wang Chenyu , Sun Guangyu , Shu Yongqi , Zou Wenya , Yang Tao , Yang Weiran
Published: September 2022

The direct conversion of glyceric acid to succinic acid by reductive carbonylation is reported for the first time.
Bis(2-pyridyl)ditellane as a precursor to CoII, CuI and CuII complex formation: structural characterization and photocatalytic studies
Authors: da Silva Felipe Dornelles , Bortolotto Tanize , Tirloni Bárbara , Daudt Natália de Freitas , Lang Ernesto Schulz , Cargnelutti Roberta
Published: September 2022

Coordination compounds containing bis(2-pyridyl)ditellane as a precursor and transition metals are described. The cobalt-containing photocatalysts are active for H2 production.
Quinoline–hydrazone hybrids as dual mutant EGFR inhibitors with promising metallic nanoparticle loading: rationalized design, synthesis, biological investigation and computational studies
Authors: Elrayess Ranza , Darwish Khaled M. , Nafie Mohamed S. , El-Sayyed Gharieb S. , Said Mohamed M. , Yassen Asmaa S. A.
Published: September 2022

A novel quinoline–hydrazone hybrid induced apoptosis in MCF-7 cells through dual mutant EGFR inhibition with promising metallic nanoparticle loading.
The [4+1] cyclization reaction of 2-hydroxylimides and trimethylsulfoxonium iodide for the synthesis of 3-amino-2,3-dihydrobenzofurans
Authors: Fang Zhongxue , Zhang Yujie , Guo Yongsheng , Jin Qihao , Zhu Hongyue , Xiu Hongsen , Liu Zhenhua , Wang Yu
Published: September 2022

The [4+1] cyclization reaction of 2-hydroxylimides and trimethylsulfoxonium iodide was investigated.
Encapsulation of atomically thin gold nanosheets within porous silica for enhanced structural stability and superior catalytic performance
Authors: Balakrishnan Thiruparasakthi , Choi Sung-Min
Published: September 2022

Porous silica-encapsulated atomically thin AuNSs exhibit excellent structural stability in dried state and superior catalytic activity and stability for the reduction of 4-nitrophenol.
Synthesis of well-defined cyclic glycopolymers and the relationship between their physical properties and their interaction with lectins
Authors: Nagao Masanori , Hoshino Yu , Miura Yoshiko
Published: September 2022

The suppressed molecular mobility of the cyclic glycopolymers was found to weaken their interactions with target proteins, demonstrating the influence of polymer topology on molecular recognition.
A wear-resistant, self-healing and recyclable multifunctional waterborne polyurethane coating with mechanical tunability based on hydrogen bonding and an aromatic disulfide structure
Authors: Liu Chao , Yin Qing , Yuan Qiming , Hao Lifen , Shi Lei , Bao Yan , Lyu Bin , Ma Jianzhong
Published: September 2022

Considering a sustainable society, it is highly desirable to develop coatings that combine excellent wear-resistance, healing and recovery capabilities with tunable mechanical properties.
Luminescent 2D single crystals of thiophene–phenylene co-oligomers for field-effect devices
Authors: Fedorenko Roman S. , Kuevda Alexey V. , Trukhanov Vasiliy A. , Sosorev Andrey Yu. , Bakirov Artem V. , Dorokhov Artem I. , Surin Nicolay M. , Borshchev Oleg V. , Ponomarenko Sergey A. , Paraschuk Dmitry Yu.
Published: September 2022

Photo/electroluminescent and semiconductor properties of macroscopic 2D single crystals are presented, and the impact of phenylene insertion is investigated.
Electrochemical cyclization ofN-cyanamide alkenes with CF3SO2Na to access C,N-(bis)trifluoromethylated cyclic amidines and related compounds
Authors: Yan Zhi-Hua , Li Wen-Cheng , Wu Yu-Heng , Yan Qi-Bo , Wei Zhong-Lin , Liao Wei-Wei
Published: September 2022

An electrochemical trifluoromethylative cyclization ofN-cyanamide alkenes and alkynes is presented, which afforded (bis)-C,N-trifluoromethylated cyclic amidines, azines and amides with selective multiple bond formations in a controllable manner.
Atom and step economical synthesis of acyclic quaternary centers via iridium-catalyzed hydroarylative cross-coupling of 1,1-disubstituted alkenes
Authors: Cooper Phillippa , Dalling Andrew G. , Farrar Elliot H. E. , Aldhous Timothy P. , Grélaud Simon , Lester Eleanor , Feron Lyman J. , Kemmitt Paul D. , Grayson Matthew N. , Bower John F.
Published: September 2022

Quaternary benzylic centers are accessed with high atom and step economy by intermolecular Ir-catalyzed hydroarylation of non-polarized 1,1-disubstituted alkenes.
Synergistic effects of CH3CO2H and Ca2+ on C–H bond activation by MnO4−
Authors: Shi Huatian , Cheng Lin , Pan Yi , Mak Chi-Keung , Lau Kai-Chung , Lau Tai-Chu
Published: September 2022

The activation of metal-oxo species with Lewis acids is of current interest.
Promoting halogen-bonding catalyzed living radical polymerization through ion-pair strain
Authors: Huang Shiwen , Su Xinjian , Wu Yanzhen , Xiong Xiao-Gen , Liu Yiliu
Published: September 2022

Promoted by the unique effect of ion-pair strain between the triaminocyclopropenium (TAC) cation and its iodide counter-anion, the TAC iodides showed high catalytic efficiency in the halogen-bonding catalysis toward radical polymerization.
Shaping techniques of adsorbents and their applications in gas separation: a review
Authors: Wu Junye , Zhu Xuancan , Yang Fan , Wang Ruzhu , Ge Tianshu
Published: September 2022

This paper reviews recent advances in the shaping adsorbents: alternative geometric forms, key metrics for evaluation, typical steps of main shaping techniques,etc., are discussed, which can serve as a reference for structured adsorbent design.
Novel inorganic fillers of 1D hydroxyapatite nanowires induced superior energy storage performances of P(VDF–HFP)-based composite films
Authors: Cheng Yu , Pan Zhongbin , Chen Hanxi , Ding Xiangping , Li Zhicheng , Fan Xu , Liu Jinjun , Li Peng , Yu Jinhong , Zhai Jiwei
Published: September 2022

Newly one-dimensional hydroxyapatite nanowires are synthesized and applied in P(VDF–HFP) nanocomposites for energy storage application. Excellent Ud of ∼27.6 J cm−3 accompanied with high η of ∼72.9% at Eb of 650 MV m−1 are achieved.
Ultrathin anion exchange membranes with an improved OH− transfer rate for high-performance AEMFCs
Authors: Song Wanjie , Liang Xian , Zhang Huaqing , Liu Xiang , Zhang Xin , Wu Liang , Ge Xiaolin , Xu Tongwen
Published: September 2022

A new freestanding ultrathin AEMs were synthesized with high mechanical strength and anion conductivity by precise polymer topological regulation. The assembled AEMFCs have high peak power density (1.8 W cm−2) and long-term stability (∼140 h).
Design of a phased array antenna with scan loss reduction and gain enhancement by using reconfigurable subarrays
Authors: Chu Hui , Shao Chuan , Zhu Xiaohua , Guo Yong‐Xin
Published: September 2022

In order to reduce the scan loss and also obtain higher scanning gain for a phased array, a subarray design is proposed in this study. Different from the prior works, the number of active phase shifters utilised in this topology is identical to its counterpart without subarrays, which makes it more cost‐effective. To achieve this valuable characteristic, a reconfigurable beam‐former is proposed to enable the radiation pattern of a subarray to be switchable to different modes for different scanning regions. The proposed beam‐former is based on substrate‐integrated waveguide (SIW) and featured by extremely low‐loss, due to its unique working mechanism. For validation, a fully integrated subarray module consisting of a beam‐former and two Yagi‐Uda antennas is designed and analysed. Furthermore, in order to show the effectiveness, five subarray modules with uniform spacing are utilised to construct a complete prototype operating at 15 GHz. Measurement results of the entire array indicate that the achieved gain is 2∼3 dB higher than its counterpart without the subarray, from −45° to +45° in the beam‐scanning plane. Meanwhile, the scan loss is decreased from ±1.45 dB to smaller than ±0.9 dB. Meanwhile, sidelobe levels are also improved for scanning angles between ±45°. It should be pointed out that the proposed approach is also applicable to broaden the scanning angle of phased arrays with properly selected antenna elements. Since there is no need to increase the number of active phase shifters, this subarray‐based approach can be considered more economic, and is very attractive for a variety of phased array systems.
Ferroelectrets: Recent developments
Authors: Qiu Xunlin , Bian Yuqing , Liu Jiawen , Xiang Yanxun , Ding Taotao , Zhu Wujun , Xuan Fu‐Zhen
Published: September 2022

Ferroelectrets (also called piezoelectrets) are relatively young members in the family of piezo‐, pyro‐ and ferroelectric materials. They exhibit ferroic behaviour phenomenologically undistinguishable from that of traditional ferroelectrics, although the materials per se are essentially non‐polar space‐charge electrets with artificial macroscopic dipoles (i.e. internally charged cavities). Since ferroelectrets not only represent a scientific curiosity but also have great application potential, they have attracted tremendous attention from science and industry. The research and development of ferroelectrets has witnessed significant progress in the past few years. New ferroelectrets with large transverse piezoelectric activity, biodegradable ferroelectrets as well as 3‐D printed ferroelectrets are reported. Charging methods of high efficiency are proposed based on better understanding of the physico‐chemical processes during charging. New insights into the piezoelectricity of ferroelectrets are provided. The development of ferroelectret‐based piezoelectric‐magnetic multimodal transducer films opens up new avenues for the research of ferroelectrets. Particularly, more and more novel applications of ferroelectrets in flexible pressure sensors, health monitoring, energy harvesting, air‐coupled ultrasonic non‐destructive testing etc. are reported. Here, these exciting recent advancements in the field of ferroelectret research are reviewed and discussed.
Precision planter monitoring system based on mobile communication network
Authors: Li Bing , Li Jiyun
Published: September 2022

Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of the plow. The purpose of this study is to analyse the analysis and research methods of the precision planter monitoring system based on mobile communication technology. In this study, a relatively advanced target detection algorithm based on prediction and mobile communication technology is adopted. The Kalman filter is applied to the precision planter monitoring tradition, in order to realise a more complete and customisable automatic monitoring system. The intelligent monitoring system and the corn precision planter can realise the stepless regulation of the planting spacing within 10–30 cm through the experimental design of three plant spacing parameter schemes of 10 , 20 and 30 cm. Its various operational performance indicators have met the standards stipulated by the state.
SFR estimations from z = 0 to z = 0.9
Authors: Figueira M. , Pollo A. , Małek K. , Buat V. , Boquien M. , Pistis F. , Cassarà L. P. , Vergani D. , Hamed M. , Salim S.
Published: September 2022

Context. The star formation rate (SFR) is a key ingredient for studying the formation and evolution of galaxies. Being able to obtain accurate estimations of the SFR, for a wide range of redshifts, is crucial for building and studying galaxy evolution paths over cosmic time.

Aims. Based on a statistical sample of galaxies, the aim of this paper is to constrain a set of SFR calibrators that are able to work in a large redshift range, from z = 0 to z = 0.9. Those calibrators will help to homogenize SFR estimations of star-forming galaxies and to remove any possible biases from the study of galaxy evolution.

Methods. Using the VIMOS Public Extragalactic Redshift Survey (VIPERS), we estimated a set of SFR based on photometric and spectroscopic data. We used, as estimators, photometric bands from ultraviolet (UV) to mid-infrared (mid-IR), and the spectral lines Hβ, [O II]λ3727, and [O III]λ5007. Assuming a reference SFR obtained from the spectral energy distribution reconstructed with Code Investigating GALaxy Emission (CIGALE), we estimated the reliability of each band as an SFR tracer. We used the GALEX-SDSS-WISE Legacy Catalog (GSWLC, z <  0.3) to trace the dependence of these SFR calibrators with redshift.

Results. The far and near UV (FUV and NUV, respectively), u-band and 24 μm bands, as well as LTIR, are found to be good SFR tracers up to z ∼ 0.9 with a strong dependence on the attenuation prescription used for the bluest bands (scatter of SFR of 0.26, 0.14, 0.15, 0.23, and 0.24 dex for VIPERS, and 0.25, 0.24, 0.09, 0.12, and 0.12 dex for GSWLC). The 8 μm band provides only a rough estimate of the SFR as it depends on metallicity and polycyclic aromatic hydrocarbon properties (scatter of 0.23 dex for VIPERS). We estimated the scatter of rest-frame luminosity estimations from CIGALE to be 0.26, 0.14, 0.12, 0.15, and 0.20 dex for FUV, NUV, ugriz, Ks, and 8–24 μm-LTIR. At intermediate redshift, the Hβ line is a reliable SFR tracer (scatter of 0.19 dex) and the [O II]λ3727 line gives an equally good estimation when the metallicity from the R23 parameter is taken into account (0.17 for VIPERS and 0.20 dex for GSWLC). A calibration based on [O III] retrieves the SFR only when additional information such as the metallicity or the ionization parameter of galaxies are used (0.26 for VIPERS and 0.20 dex for GSWLC), diminishing its usability as a direct SFR tracer. Based on rest-frame luminosities estimated with CIGALE, we propose our own set of calibrations from FUV, NUV, u-band, 8, 24 μm, LTIR, Hβ, [O II], and [O III].
Supernova double-peaked light curves from double-nickel distribution
Authors: Orellana Mariana , Bersten Melina C.
Published: September 2022

Among supernovae (SNe) of different luminosities, many double-peaked light curves (LCs) have been observed, representing a broad morphological variety. In this work, we investigate which of these can be modelled by assuming a double-peaked distribution of their radioactive material, as originally proposed for SN2005bf. The inner zone corresponds to the regular explosive nucleosynthesis and extends outwards, according to the usual scenario of mixing. The outer 56Ni-rich shell may be related to the effect of jet-like outflows that have interacted with more distant portions of the star before the arrival of the SN shock. As the outer layer is covered by matter that is optically less thick, its energy emerges earlier and generates a first peak of radiation. To investigate this scenario in more detail, we have applied our hydrodynamic code that follows the shock propagation through the progenitor star and takes into account the effect of the γ-ray photons produced by the decay of the radioactive isotopes. We present a simple parametric model for the 56Ni abundance profile and explore the consequences on the LC of individually varying the quantities that define this distribution, setting our focus onto the stripped-envelope progenitors. In this first study, we are interested in the applicability of this model to SNe that have not been classified as superluminous, thus, we have selected our parameter space accordingly. Then, within the same mathematical prescription for the 56Ni -profile, we revisited the modelling process for a series of objects: SN2005bf, PTF2011mnb, SN2019cad, and SN2008D. In some cases, a decrease in the gamma ray opacity is required to fit the late time observations. We also discuss the other cases in which this scenario might be likely to explain the LC morphology. A steep initial decline in the observed bolometric LC within less than few days after the explosion becomes less feasible for this model, because it requires a large abundance of 56Ni near the stellar surface, indicating a strongly inverted distribution. An initial bolometric rise before the two peaks seems more favourable for the double-nickel case, particularly as it can be difficult to explain through other scenarios, unless a combination of power sources is invoked.
Data on 824 fireballs observed by the digital cameras of the European Fireball Network in 2017–2018
Authors: Borovička J. , Spurný P. , Shrbený L. , Štork R. , Kotková L. , Fuchs J. , Keclíková J. , Zichová H. , Mánek J. , Váchová P. , Macourková I. , Svoreň J. , Mucke H.
Published: September 2022

A catalog of 824 fireballs (bright meteors), observed by a dedicated network of all-sky digital photographic cameras in central Europe in the years 2017–2018 is presented. The status of the European Fireball Network, established in 1963, is described. The cameras collect digital images of meteors brighter than an absolute magnitude of about −2 and radiometric light curves with a high temporal resolution of those brighter than a magnitude ≈−4. All meteoroids larger than 5 g, corresponding to sizes of about 2 cm, are detected regardless of their entry velocity. High-velocity meteoroids are detected down to masses of about 0.1 g. The largest observed meteoroid in the reported period 2017–2018 had a mass of about 100 kg and a size of about 40 cm. The methods of data analysis are explained and all catalog entries are described in detail. The provided data include the fireball date and time, atmospheric trajectory and velocity, the radiant in various coordinate systems, heliocentric orbital elements, maximum brightness, radiated energy, initial and terminal masses, maximum encountered dynamic pressure, physical classification, and possible shower membership. Basic information on the fireball spectrum is available for some bright fireballs (apparent magnitude <−7). A simple statistical evaluation of the whole sample is provided. The scientific analysis is presented in an accompanying paper.
Search for Jovian decametric emission induced by Europa on the extensive Nançay Decameter Array catalog
Authors: Jácome H. R. P. , Marques M. S. , Zarka P. , Echer E. , Lamy L. , Louis C. K.
Published: September 2022

Context. The electrodynamic interaction between the Galilean satellites and the Jovian magnetosphere generates Alfvén wings that connect the satellites to the polar atmosphere of Jupiter and induce auroral radiation through the cyclotron-maser instability. The satellite control of the Jovian decametric emission is widely known and has been studied since the 1960s, being first discovered with regard to Io and, more recently, Ganymede. The partial control of these emission by Europa and Callisto, however, has not yet been confirmed, however, hints of this control have already been found.

Aims. The goal of this work is to search for evidence of control of the Jovian decametric emission by the satellite Europa.

Methods. For this purpose, we analyzed the extensive digital catalog of Jovian decametric emission detected by the Nançay Decameter Array from 1990 to 2020. We analyzed distributions of the occurrence probability of the emission not induced by Io nor by Ganymede as a function of Europa phase and of the Array’s longitude with regard to the Jovian central meridian of longitude.

Results. As a result, we selected 267 possible Europa-induced emission, from which 186 are from source A (Eu-A), 56 are from source C (Eu-C), and 25 are from source D (Eu-D). The general maximum frequency and duration of these emission are presented and compared to those of the other emission in the catalog and their average power is estimated as a function of the average power of the Io-induced emission.

Conclusions. We conclude that Europa, just as in the case of Io and Ganymede, induces a portion of the Jovian decametric emission.
Stable model reduction for linear variational inequalities with parameter-dependent constraints
Authors: Niakh Idrissa , Drouet Guillaume , Ehrlacher Virginie , Ern Alexandre
Published: September 2022

We consider model reduction for linear variational inequalities with parameter-dependent constraints. We study the stability of the reduced problem in the context of a dualized formulation of the constraints using Lagrange multipliers. Our main result is an algorithm that guarantees inf-sup stability of the reduced problem. The algorithm is computationally effective since it can be performed in the offline phase even for parameter-dependent constraints. Moreover, we also propose a modification of the Cone Projected Greedy algorithm so as to avoid ill-conditioning issues when manipulating the reduced dual basis. Our results are illustrated numerically on the frictionless Hertz contact problem between two half-disks with parameter-dependent radius and on the membrane obstacle problem with parameter-dependent obstacle geometry.
Identifizierung und Priorisierung von Forschungsfragen zu Paraplegie
infolge einer unfallbedingten Querschnittlähmung mit Betroffenen,
Angehörigen und professionell Versorgenden
Authors: Levelink Michael , Voigt-Barbarowicz Mona , Ahlers Carlotta , Brütt Anna Levke
Published: September 2022

Ziel der Arbeit Menschen mit Paraplegie, Angehörige und
professionell Versorgende können mit ihrer Erfahrung und praktischen
Kenntnissen zur Entwicklung patientenorientierter, versorgungsrelevanter
Forschungsfragen beitragen. Um sie in die Entwicklung einer Forschungsagenda
einzubeziehen, hat die James Lind Alliance (JLA) einen etablierten Ansatz
entwickelt. Das Ziel dieser Studie ist die Entwicklung einer Forschungsagenda zu
Paraplegie infolge einer traumatischen Querschnittlähmung, in Anlehnung
an diesen Ansatz.

Methodik Es wurden vier aufeinander aufbauende Online-Befragungen unter
Menschen mit einer traumatisch bedingten Paraplegie, ihren Angehörigen
und professionell Versorgenden durchgeführt. In der ersten haben die
Teilnehmenden aus ihrer Sicht unbeantwortete Fragen frei formuliert. Diese
wurden zusammengefasst und dahingehend geprüft, ob sie bereits durch
Forschung beantwortbar sind. Die unbeantworteten Fragen wurden in weiteren
Befragungen schrittweise priorisiert: In der zweiten wurden sie auf einer
fünfstufigen Rating-Skala (1–5) hinsichtlich ihrer Relevanz
bewertet, um eine Shortlist aus den Fragen zu entwickeln, die mit einem
Mittelwert von über 4 bewertet wurden. In der dritten Umfrage wurden
daraus die Top 10 bestimmt, deren Rangordnung in der vierten Befragung ermittelt
wurde.

Ergebnisse Es wurden 38 unbeantwortete Forschungsfragen identifiziert (1.
Befragung; n=52). Davon wurden 26 Fragen als wichtig bewertet (2.
Befragung; n=53), aus denen 10 Fragen ausgewählt (3. Befragung;
n=17) und in eine Rangordnung gebracht wurden (4. Befragung;
n=12). Vier Prioritäten betreffen
Behandlungsmöglichkeiten der Querschnittlähmung oder damit
verbundener Gesundheitsprobleme, drei die Gestaltung der Gesundheitsversorgung
im Bereich der Hilfsmittel und der Implementierung von Forschung, zwei
adressieren Patientenfaktoren, die zur Verbesserung der eigenen Situation
beitragen und eine die Erforschung des Krankheitsverlaufs.

Schlussfolgerung Es wurden neun Fragestellungen priorisiert, die auf
Forschung zur Verbesserung der Lebens- und Versorgungssituation mit einer
Querschnittlähmung abzielen, während eine Frage die Heilung
adressiert. Die priorisierten Fragen sollten durch Forschung aufgegriffen
werden, damit Problemstellungen adressiert werden, die für Betroffene,
Angehörige und professionell Versorgende relevant sind.
Die Renaissance „vergessener Erkrankungen“ – eine Renaissance der Ophthalmopathologie?
Authors: Rohrbach Jens Martin
Published: September 2022

Bestimmte, „vergessene Infektionskrankheiten“ werden wieder häufiger. Für ihre Diagnostik bleibt die Ophthalmopathologie von Bedeutung.
Femmes Tisch plus: Hebammen in der
Gesundheitsförderung
Authors: Steiner Anne
Published: September 2022

Haben Hebammen die Möglichkeit, durch wirksame Angebote während
der Schwangerschaft und frühen Kindheit Einfluss auf die Gesundheit der
Un- und Neugeborenen zu nehmen? Mit dem Angebot der Femmes Tische plus beraten
Hebammen in der Schweiz Frauen mit Einwanderungsgeschichte über die
Zusammenhänge der Epigenetik im Bereich der Ernährung und
Bewegung.
Frauen mit Adipositas leitlinienbasiert betreuen
Authors: Hennicke Julia , Schmidt Markus , Krahl Astrid , Stamm Anja
Published: September 2022

Expert*innen-Interview | In der Gesellschaft ist
Übergewicht schambehaftet. In der Ausbildung von Hebammen und
Ärzt*innen kommen Adipositas und
Schwangerschaft zu kurz. Eine aktuelle S3-Leitlinie schließt die
Wissenslücke und holt das Thema aus der Tabuzone. Sie bietet
Fachdisziplinen ein Instrumentarium, um Frauen mit Adipositas evidenzbasiert zu
betreuen. Die dazugehörige Patientenleitlinie erklärt Frauen,
warum ihre Compliance unverzichtbar ist. Prof. Dr. med. Markus Schmidt und
Hebamme Julia Hennicke verraten, was ihnen in der Leitliniengruppe wichtig war
und wie alle von den Empfehlungen profitieren.
Wie ein Chamäleon in der Disco …
Authors: Koch Ulrich
Published: September 2022

Niemals in der Geschichte der Menschheit waren wir so vielen und intensiven Reizen
aus unserer unmittelbaren Umwelt ausgesetzt. Umgebungsereignisse, soziale
Interaktionen, Medienimpulse und ständige Erreichbarkeit konkurrieren im
Akkord um die Synapsen. Fast scheint es, als ob der Sensation Seeker, der von
einem Gipfel der Reizüberflutung zum nächsten eilt, um seine
Transmitterausschüttungen im Belohnungssystem auf ausreichend hohem Level zu
halten, zum neuen Kulturideal geworden wäre.
Hochsensibilität – Gedanken zur Physiologie und
homöopathische Behandlungsansätze
Authors: Schmidt Sabine , Koch Ulrich
Published: September 2022

Hochsensibilität, genauer eine höhere sensorische
Verarbeitungssensitivität, ist ein psychologisches Konzept, das mit
einer feineren Wahrnehmung wie auch häufig einer erhöhten
Belastung dadurch und mit einer ausgeprägteren Reizbarkeit einhergeht.
Vermehrt nehmen Menschen mit einer solchen Ausprägung
homöopathische Hilfe in Anspruch, wobei die Homöopathie als
Behandlungsansatz für Hochsensible geradezu prädestiniert
erscheint. Es werden die grundlegenden Konzepte zur Hochsensibilität
vorgestellt und Behandlungswege dargestellt.
Die Gesichter der Hochsensibilität –
Falldarstellungen
Authors: Borsche Eva
Published: September 2022

Hochsensibilität weist eine hohe Bandbreite an Erscheinungsformen auf.
Die Homöopathie kann aufgrund ihres individualisierenden und
phänomenologischen Ansatzes hier in einer Art und Weise symptombezogen
und heilend eingreifen, wo keine oder nur geringe andere
Behandlungsmöglichkeiten bestehen. Dies wird an 3 sehr unterschiedlichen
Fallgeschichten aufgezeigt.
Predictive Value of Early Postoperative Course of Serum Cortisol
After Transsphenoidal Surgery for Cushing’s Disease
Authors: Meier Matthias , Alomari Ali , Feldkamp Joachim , Mann W Alexander , Santen Reinhard , Ewald Nils , Knappe Ulrich J
Published: September 2022

Objective To identify early available predictors for the long-term outcome
of patients after transsphenoidal surgery (TSS) in the management of
Cushing’s disease.

Methods This single-center, retrospective study included 93 consecutive
patients with Cushing’s disease (follow-up 12–129 months, mean
48, median 38) who underwent TSS (21 had previous operations elsewhere). Six
cases had early re-operation, and the resulting data were evaluated instead of
the respective first operation. During the postoperative course, serum cortisol
levels were assessed every four hours at least until the next morning. An
association of parameters with long-term outcomes was tested using binary
logistic regression. Receiver operating characteristic curves were used to
determine sensitivity, specificity, positive predictive value, and negative
predictive value of different cut-off values of serum cortisol in the
postoperative course in the event of recurrence after remission.

Results Eighty out of 93 patients (86%) showed postoperative
remission (after primary treatment, 60 out of 72 patients, 90.3%). Of
these, 8 patients (10%) developed recurrence of hypercortisolism.
Compared to patients with persisting long-term remission, those with recurrence
differed in cortisol levels starting from 4 pm on the day of surgery
plus an event of increasing cortisol during the early postoperative course
(“peak”). Binary logistic regression showed the association
between a peak of serum cortisol in the early postoperative course with an
increased probability of recurrence.

Conclusions Patients with a peak of serum cortisol in the early
postoperative course show an increased recurrence rate. A cut-off value of serum
cortisol for clear identification of patients with later recurrence could not be
determined.
Inanspruchnahme von und Einstellungen zu Tests zum Nachweis von
SARS-CoV-2 und entsprechenden Antikörpern. Ergebnisse einer
bevölkerungsrepräsentativen Befragung im Spätsommer
2021
Authors: Hajek André , Nedjad MiladAhmad , Kretzler Benedikt , König Hans-Helmut
Published: September 2022

Ziel der Studie Es mangelt hierzulande an Erkenntnissen bzgl. der
Inanspruchnahme von und den Einstellungen zu Tests zum Nachweis von SARS-CoV-2.
Unsere Arbeit zielt darauf ab, diese Lücke zu verringern.

Methodik Die Daten entstammen einer
bevölkerungsrepräsentativen Onlinebefragung (24. August bis 3.
September 2021, n=3.075; mittleres Alter 44,5 Jahre). Die
Inanspruchnahme von und die Einstellungen zu den Covid-19-Tests wurden im Detail
quantifiziert.

Ergebnisse 79,1% der Befragten haben schon einmal einen
entsprechenden Test zum Nachweis von SARS-CoV-2 (primär
Antigen-Schnelltests im Schnelltestzentrum und Selbsttests) bzw. einen
Antikörpertest durchführen lassen. Mit Ausnahme der
Durchführung eines PCR-Tests wurde die Durchführung
entsprechender Tests nur selten als unangenehm empfunden. Am ehesten
würden die Befragten einen Antigen-Schnelltest im Schnelltestzentrum
bevorzugen. Hauptgründe für die Inanspruchnahme von Selbsttests
und auch von Antigen-Schnelltests in Schnelltestzentren waren jeweils: (i)
Schutz anderer Menschen, (ii) zur eigenen gesundheitlichen Vorsorge und (iii)
Reisen. Hingegen waren Hauptgründe für den Verzicht auf
Selbsttests/Antigen-Schnelltests im Betrieb/Ausbildungszentrum:
(i) Bereits geimpft gegen Covid-19/genesen von Covid-19, gefolgt von
(ii) dem Arbeitsplatz im Home-Office, und einem (iii) fehlenden wahrgenommenen
Nutzen. Mit dem Zugang zu den Testmöglichkeiten im
Betrieb/Ausbildungszentrum und den Schnelltestzentren waren jeweils
knapp 80% eher bzw. sehr zufrieden.

Schlussfolgerung Unsere Arbeit hat die Inanspruchnahme und einige Aspekte
der Einstellungen bzgl. der Tests zum Nachweis von SARS-CoV-2 in Deutschland im
Spätsommer 2021 beschrieben. Damals wurden derartige Testangebote schon
genutzt und überwiegend als wenig unangenehm empfunden. Der Schutz
anderer Menschen war dabei ein Hauptgrund für die Nutzung derartiger
Testangebote. Künftige Forschung in diesem Bereich ist
wünschenswert (z. B. bei Hochaltrigen und in Zeiten
entgeltlicher Corona-Schnelltests).
123-Iodine MIBG in the Assessment of Sympathetic Denervation in Ogilvie's Syndrome
Authors: Bhoil Amit , Vinjamuri Sobhan
Published: September 2022

123-Iodine metaiodobenzylguanidine (I-123 MIBG) imaging is frequently used in the assessment of sympathetic innervation and autonomic dysfunction in patients with cardiac failure, neurodegenerative Parkinson's syndrome, multiple system atrophy, myotonic dystrophy, and diabetic mellitus. The etiology of pseudo-obstruction remains unknown with likely imbalance between sympathetic and parasympathetic innervation proposed as a hypothesis. We present a case demonstrating the utility of I-123 MIBG scintigraphy for evaluating a case of pseudo-obstruction requiring frequent hospitalization due to progressive complex autoimmune neurological disorder.
Synchronous Bilateral Multifocal Warthin's Tumor Mimicking Primary Malignancy on 18F-FDG Whole Body PET/CT in a Case of Metastatic Cervical Lymph Nodes from Unknown Primary Malignancy
Authors: Basheer Shyma , Satish Alamelu , Vallonthaiel Archana George , Sarma Manjit
Published: September 2022

Warthin's tumor is a benign and frequently encountered salivary gland neoplasm. Bilaterality and multifocality are rare in Warthin's tumor. Synchronous cervical lymph nodal metastasis with unknown primary in a case of Warthin's tumor can raise a suspicion of primary malignancy of the parotid gland. We present a case of bilateral multifocal Warthin's tumor with synchronous squamous cell carcinoma metastasis to the cervical lymph node. 18F-fluorodeoxyglucose whole body positron emission tomography/computed tomography imaging showed hypermetabolic bilateral multifocal parotid lesions and metastatic cervical lymph node with unknown primary malignancy.
Synthesis of Linear Tetraquinanes by [3+2] Cycloaddition, Chemoselective Allylation of 7-Ketonorbornene, and Ring-Rearrangement Metathesis as Key Steps
Authors: Kotha Sambasivarao , Agrawal Arpit
Published: September 2022

A nine-step synthetic sequence to linear tetraquinanes involving [3+2] cycloaddition, chemoselective allylation, and ring-rearrangement metathesis as key steps is reported. A chemoselective allylation of 7-ketonorbornene was realized for the first time by using indium powder and allyl bromide. By this method, norbornene ketones can be selectively allylated in the presence of a cyclopentanone moiety to give good yields of monoallylated Barbier-type products.
Patientenlogistik: Inhouse-Navigation im Krankenhaus – Zwischen Piktogramm-Steuerung und App-Navi
Authors: Kriegel Johannes
Published: September 2022

Täglich wird jedes Krankenhaus durch eine Vielzahl verschiedener Personen aufgesucht. Die Hundertschaften an Individuen bilden dabei keine homogene Einheit, sondern verfolgen vielzählige Ziele, bei gleichzeitig unterschiedlicher Ortskenntnis und Orientierungsfähigkeit. Aus Sicherheitsgründen, Leistungsanforderungen und Serviceorientierung gilt es, die ungleichen Personengruppen gezielt über eine ausdifferenzierte Inhouse-Navigation im Krankenhaus zu steuern.
Crossed Cerebellar Diaschisis in Thalamic Lymphoma on 18F-FDG PET/CT
Authors: Bhoil Amit , RacuAmoasii Igor , Vinjamuri Sobhan
Published: September 2022

Primary central nervous system lymphomas (PCNSLs) are extranodal variant forms of non-Hodgkin lymphoma arising within the brain parenchyma, leptomeninges, or spinal cord. PCNSL can present with varied neurological symptoms and imaging findings, making diagnosis without biopsy difficult. PCNSLs are highly aggressive, causing rapid deterioration, but are responsive to chemotherapy and radiotherapy making early diagnosis important.

Crossed cerebellar diaschisis (CCD) is mostly seen with cerebral cortex vascular insults and is rarely reported with thalamic lesions and even rarer with thalamic lymphoma. However, CCD has also been described in other brain tumors (including primary glioma), chronic subdural hematoma, congenital insults, intracranial infections, and various dementia subtypes.

We present a rare case of thalamic lymphoma evaluated with positron emission tomography/computed tomography that showed hypermetabolism of thalamus and associated hypometabolism in ipsilateral cerebral cortex and contralateral cerebellum representing CCD.
An Uncommon Presentation of Leptomeningeal Metastases in Breast Carcinoma Detected by F-18 FDG PET/CT
Authors: Surya Gavini , Ajit Nimmagadda , Priya Rallapeta Ramya , Hemalatha Dhamarcherla S. , Devi Bodagala Vijayalakshmi , Kalawat Tekchand
Published: September 2022

Leptomeningeal carcinomatosis is a manifestation in which tumor cells migrate into meninges. Breast carcinoma presenting with leptomeningeal metastases is a rare phenomenon that can occur in an isolated form as well as with coexistent parenchymal brain metastases. The gold standard for diagnosis is cerebrospinal fluid analysis, while contrast-enhanced magnetic resonance imaging is the most commonly used imaging modality. Nuclear medicine imaging with flourine-18-fluorodeoxyglucose positron emission tomography/computed tomography has proved to be useful in detecting leptomeningeal metastases and, at times, even before anatomical changes occur. Here, we present a case of breast carcinoma presenting with both pachymeningeal and leptomeningeal metastases 10 years after treatment.
p-type to n-type conductivity transition in thermoelectric CoSbS
Authors: Kousar H. Sajida , Srivastava Divya , Karttunen Antti J. , Karppinen Maarit , Tewari Girish C.
Published: September 2022

We demonstrate a p-type to n-type conductivity transition for thermoelectric CoSbS achieved by precisely controlling the sulfur vapor pressure during the sample synthesis. The p–n transition is experimentally confirmed by both the Seebeck coefficient and the Hall effect measurements. From the crystal structure refinements, the increase in the sulfur vapor pressure in the synthesis is weakly but steadily reflected in the occupancy factor of sulfur in the CoSbS lattice, while the p–n transition is seen as a peak in all the three lattice parameters, a, b, and c. Computationally, the situation could be simulated with first principle DFT calculations on compressed CoSbS. Without compression, DFT presents CoSbS as a p-type semiconductor with an indirect bandgap of 0.38 eV, while the pressure application results in an n-type semiconductor with decreased lattice parameters but the same indirect bandgap as in the uncompressed case. Experimentally, the thermal conductivity is strongly enhanced for sulfur-deficient samples, which could be due to larger phonon mean free paths. The sulfur loading significantly enhances the electrical conductivity while moderately decreasing the Seebeck coefficient such that the overall power factor is improved by a factor of 9 for the n-type sample and by a factor of 6 for the p-type sample, owing to the increased charge carrier density, although the performance is still relatively low. Thus, this study highlights CoSbS as a promising building block for thermoelectric devices based on its bipolar semiconductor nature with the possibility for both p-type and n-type doping with enhanced power factor.
Investigation of the mechanism of unsteady flow induced by cavitation at the tongue of a centrifugal pump based on the proper orthogonal decomposition method
Authors: Lu Jiaxing , Wu Feng , Liu Xiaobing , Zhu Baoshan , Yuan Shouqi , Wang Jian
Published: September 2022

To investigate the unsteady evolution characteristics and mechanism of cavitation at the tongue and its influence on the flow field in a centrifugal pump, numerical calculations were performed to research the occurrence and development of cavitation at the tongue under large flow rate (1.3Qd) conditions. The numerical calculation results were verified by experiments. The proper orthogonal decomposition (POD) method was used to decompose and reconstruct the flow field at the tongue of the centrifugal pump. The relationship between the typical frequency of pressure pulsation and the mainstream structure of the flow field was established. The POD method could accurately extract the coherent structure caused by cavitation and capture the unstable flow structure produced by vortex shedding. Under different available net positive suction head conditions, the first mode was the mainstream structural mode in the original flow field, with low-frequency and single-frequency components. The second, third, and fourth modes were the main oscillation modes of the original flow field and showed the characteristics of high frequency and multiple frequencies. High-order modes could capture the complex flow field structure caused by the change in the large-scale vortex structure induced by the unsteady pulsation of cavitation.
Liquation cracking susceptibility of remelted and reheated weld metals in CM247LC superalloy using multi-bead Varestraint testing
Authors: Chun Eun-Joon , Jeong Ye-Seon , Seo Seong-Moon , Kang Heeshin
Published: September 2022

The liquation cracking temperature range (LCTR) of CM247LC was evaluated, especially in remelted and reheated weld metals produced during multi-pass repair welding. The LCTR of the remelted weld metal was 282 K, and those of the reheated weld metals were 455–805 K depending on the testing position. In the multi-bead within the reheated weld metal, the LCTR increased from 455 K far from the inter-pass boundary to 805 K near this boundary. The mechanism underlying the varying LCTR for the remelted and reheated weld metals was the amount of MC carbide at each weld position. The single-mode fibre laser welding suppressed the carbide within both areas, and lowered the liquation cracking susceptibility.
Effect of external stress anisotropy on the ferromagnetic resonance properties in thin film
Authors: Zhou Jieyu , Rong Jianhong , Wang Huan , Zhang Shufei , Liu Ling
Published: September 2022

Effects of in-plane and out-of-plane external stress anisotropy of ferromagnetic thin film with in-plane and out-of-plane uniaxial anisotropy on the ferromagnetic resonance frequencies have been theoretically investigated by using ferromagnetic resonance method. It is shown that resonance frequency can be enhanced by increasing in-plane external stress anisotropy field and uniaxial anisotropy field, decreasing out-of-plane uniaxial anisotropy field. For out-of-plane external stress case, however, the resonance frequency and two critical fields have no significant change. Also, compared with the case of the in-plane external stress anisotropy, the FMR frequencies are smaller. Additionally, interesting features are obtained for the stress case and compared with the case of without stress. The obtained results provide further insights on the effect of external stress on the properties of ferromagnetic thin film.