bluuebunny/crossref_metadata_2025 huggingface dataset:
Palladium-catalyzed synthesis of 4-sila-4H-benzo[d][1,3]oxazines by intramolecular Hiyama coupling
Authors: Lee Donghyeon , Shintani Ryo
Published: March 2023

A palladium-catalyzed synthesis of 4-sila-4H-benzo[d][1,3]oxazines, silicon-switched analogs of biologically relevant 4H-benzo[d][1,3]oxazines, was developed by the intramolecular Hiyama coupling of 3-amido-2-(arylsilyl)aryl triflates.
Cooperativity between sodium ions and water molecules facilitates lipid mobility in model cell membranes
Authors: Chattopadhyay Madhurima , Krok Emilia , Orlikowska-Rzeznik Hanna , Piatkowski Lukasz
Published: March 2023

Water hydrating lipid membranes plays a major role in facilitating lipid diffusion. However, once the membrane hydration layer is perturbed an intricate cooperation between water and specific ions is required to maintain membrane fluidity.
Superior gene transfection efficiency in triple negative breast cancer by RAFT-mediated amino acid-based cationic diblock copolymers
Authors: Saha Rima , Haldar Satyajit , Pradhan Subhashree Subhasmita , Jana Kuladip , Sarkar Kishor
Published: March 2023

RAFT polymerization derived amino acid-based cationic diblock copolymer for efficient gene transfection efficiency in triple negative breast cancer.
Heads or tails: investigating the effects of amphiphile features on the distortion of chiral nematic liquid crystal droplets
Authors: Honaker Lawrence W. , Schaap Jorik , Kenbeek Dennis , Miltenburg Ernst , Deshpande Siddharth
Published: March 2023

The tails of amphiphiles play a dominant role than the heads when interacting with chiral nematic liquid crystal droplets and determining the final textures and distortions.
Recent advances in metal–organic framework-based photoelectrochemical and electrochemiluminescence biosensors
Authors: Qin Jiao , Li Jinjin , Zeng Haisen , Tang Juan , Tang Dianping
Published: March 2023

This review summarizes recent advances on metal-organic frameworks for the applications in photoelectrochemical and electrochemiluminescence biosensors.
Palladium encapsulated mesoporous silica nanoparticles for the rapid detection of analytes
Authors: Jia Tianwei , Luo Ying , Sheng Xiaolin , Fang Jieqiong , Merlin Didier , Iyer Suri S.
Published: March 2023

We designed a simple, inexpensive, and user-friendly assay using mesoporous silica nanoparticles to detect analytes.
A contact-polymerizable hemostatic powder for rapid hemostasis
Authors: Wang Jia , Li Cheng , Zhang Wei , Huang Weimin , Liu Zhiqiang , Shi Rui , Wang Shiyuan , Liu Shan , Shi Weiguo , Li Yunlan , Xu Liang
Published: March 2023

A contact-polymerizable hemostatic system with properties of quick hemostasis, fast biodegradation and on-demand removal is reported.
Understanding W/H-ZSM-5 catalysts for the dehydroaromatization of methane
Authors: Çağlayan Mustafa , Nassereddine Abdallah , Nastase Stefan-Adrian F. , Aguilar-Tapia Antonio , Dikhtiarenko Alla , Chung Sang-Ho , Shterk Genrikh , Shoinkhorova Tuiana , Hazemann Jean-Louis , Ruiz-Martinez Javier , Cavallo Luigi , Ould-Chikh Samy , Gascon Jorge
Published: March 2023

Tungsten is the most interesting and promising metal to replace molybdenum in methane dehydroaromatization (MDA) catalysis.
Assembling CeO2nanoparticles on ZIF-8viathe hydrothermal method to promote the CO2photoreduction performance
Authors: Zhang Yuxin , Lang Feifan , Zhao Yujie , Hou Hongwei
Published: March 2023

The ZIF-8@CeO2composite was prepared by the hydrothermal method. Compared to pristine ZIF-8 or CeO2nanoparticles, the ZIF-8@CeO2composite shows significantly better efficiency in the reduction of CO2into CO and CH4under light irradiation.
Advances in Ag2Se-based thermoelectrics from materials to applications
Authors: Wu Hao , Shi Xiao-lei , Duan Jingui , Liu Qingfeng , Chen Zhi-Gang
Published: March 2023

Thermoelectric materials and their devices can realize the solid-state energy conversion between thermal and electrical energy, therefore serving as a promising alternative to conventional fossil fuels for energy supply.
Fingerprinting fragments of fragile interstellar molecules: dissociation chemistry of pyridine and benzonitrile revealed by infrared spectroscopy and theory
Authors: Rap Daniël B. , Simon Aude , Steenbakkers Kim , Schrauwen Johanna G. M. , Redlich Britta , Brünken Sandra
Published: March 2023

Fragmentation pathways of benzonitrile and pyridine are elucidated using cryogenic infrared ion spectroscopy, quantum-chemical calculations and molecular dynamics simulations.
Production of mature myotubes in vitro improves the texture and protein quality of cultured pork
Authors: Guan Xin , Yan Qiyang , Ma Zhenwu , Zhou Jingwen
Published: March 2023

Cultured meat technology provides a promising strategy for the production of meat protein, which is an important nutrient in daily life.
Surface engineering of CsPbBr3 perovskite nanocrystals: hole transfer dynamics and enhanced photocurrent response using a novel organic molecule
Authors: Venkateswarlu D. , Swetha T. , Akhil Syed , Palabathuni Manoj , Mishra Nimai , Singh Surya Prakash
Published: March 2023

A molecularly engineered small organic molecule SPS-Cbz is used as a hole acceptor to study the photoinduced hole-transfer phenomenon using amine-free and amine-based perovskite nanocrystals.
Bimodal structural tuning of pyrrole-2-carboxamide-based transmembrane ion transport systems
Authors: Roy Naveen J. , Pujari Parappa L. , Talukdar Pinaki
Published: March 2023

We report pyrrole-2-carboxamides as efficient transmembrane anion transport systems, with transport properties easily tuneable through control of lipophilicity and N–H pKa by simple variations of the pyrrole ring and amide moiety substitutions.
Ring-opening metathesis polymerization of ester-functionalizedendo-tricyclo[4.2.2.02,5]deca-3,9-dienes and thermal properties of the resulting polymers
Authors: Asano Yuta , Aoi Hiromi , Ohtani Hajime , Matsuoka Shin-ichi , Suzuki Masato
Published: March 2023

We investigated the ROMP of 1 and 2, and revealed the glass transition temperature and pyrolysis mechanisms of the resulting (co)polymers (with norbornene).
A supramolecular near-infrared nanophotosensitizer from host-guest complex of lactose-capped pillar[5]arene with aza-BODIPY derivative for tumor eradication
Authors: Li Jiaxuan , Lv Xiaomeng , Li Jiahui , Jin Wenjuan , Chen Zelong , Wen Yafei , Pei Zhichao , Pei Yuxin
Published: March 2023

A supramolecular NIR nanophotosensitizer for dual-modal imaging and ablation of tumors was constructed by loading disulfiram (DSF) into the vesicle from host–guest complex of lactose-capped pillar[5]arene (LacP5) with aza-BODIPY derivative (BSTA).
Gold-catalyzed multicomponent reactions
Authors: Tathe Akash G. , Saswade Sagar S. , Patil Nitin T.
Published: March 2023

Multicomponent reactions (MCRs) have emerged as an important branch in organic synthesis for the creation of complex molecular structures. This review is focused on gold-catalyzed MCRs with a special emphasis on the recent developments.
Theoretical and solid-state structures of three new macroacyclic Schiff base complexes and the investigation of their anticancer, antioxidant and antibacterial properties
Authors: Rezaei Mohammad Taher , Keypour Hassan , Hajari Saadat , yaghoobi Fereshteh , Moazzami Farida Seyed Hamed , Saadati Masoud , Gable Robert William
Published: March 2023

Symmetrical macroacyclic Schiff base complexes were prepared from a ligand derived from the condensation reaction of 1,4-bis(2-aminophenyl)piperazine and salicylaldehyde (L) with Co(ii) perchlorates.
Effect of morphological variation in three-dimensional multiwall carbon nanotubes as the host cathode material for high-performance rechargeable lithium–sulfur batteries
Authors: Adhikari Pashupati R. , Lee Eunji , Smith Lee , Kim Jeongyong , Shi Sheldon , Choi Wonbong
Published: March 2023

Among various parameters of 3D CNTs as a conductive sulfur host material in LSB cathodes, high surface area, high porosity, and small pore size distribution, among others, are the most critical parameters, enhancing LSB performance.
Copper-catalyzed asymmetric allylic alkylation of racemic inert cyclic allylic ethers under batch and flow conditions
Authors: Li Jun , Song Xiao , Wang Yan , Huang Junrong , You Hengzhi , Chen Fen-Er
Published: March 2023

The Cu-catalyzed AAA reactions employing challenging racemic inert cyclic allylic ethers with sterically hindered Grignard reagents have been disclosed under batch and flow conditions.
Influence of temperature-induced A-site cation redistribution on the functional properties of A-site complex polar perovskite K1/2Bi1/2TiO3
Authors: Eyoum Gina E. , Eckstein Udo , Ursic Hana , Pinto-Salazar Monica , Buntkowsky Gerd , Groszewicz Pedro B. , Checchia Stefano , Hayashi Kouichi , Webber Kyle G. , Khansur Neamul H.
Published: March 2023

The annealing temperature and cooling rate influence on the structure and functional properties in K1/2Bi1/2TiO3.
Improving the optoelectronic properties of single-crystalline antimony sulfide rods through simultaneous defect suppression and surface cleaning
Authors: Liu Xiaohui , Dong Shunhong , Zheng Xiaolu , Zhang Yicheng , Yao Yuan , Zhang Weibin , Liu Zhiyong , Zhu Ting , Wang Hong-En
Published: March 2023

Single-crystalline Sb2S3 rods were successfully used to fabricate high-performance photodetector after surface cleaning and defect suppression through post-annealing in H2/Ar atmosphere.
Genome damage accumulated in seed ageing leads to plant genome instability and growth inhibition
Authors: Waterworth Wanda M. , West Christopher E.
Published: March 2023

Successful germination and seedling establishment are important determinants of crop yields and plant survival in natural environments. Germination potential is compromised by suboptimal environmental conditions that result in seed ageing and high levels of genome damage. However, the mutagenic and growth inhibitory potential of DNA damage accumulated in seeds on subsequent seedling growth remains largely unknown. Arabidopsis seeds deficient in the chromosomal break repair factors DNA LIGASE 4 and DNA LIGASE 6 exhibited hypersensitivity to the effects of natural ageing, with reduced germination vigour and seedling biomass relative to wild type seed. Here, we identify that aged Arabidopsis seed display elevated levels of programmed cell death (PCD) in the root meristem which persists into seedling establishment, with higher levels of cell death in lines deficient in DNA double strand break repair. Reporter lines determined the effects of seed ageing on mutation levels and intrachromosomal recombination frequencies. Seed deterioration resulted in strikingly elevated levels of frameshift mutations and genome instability in germinated seedlings. Thus, elevated levels genome damage incurred in the seed stage of the plant life cycle potentially impacts significantly on subsequent plant development. Furthermore, the mutagenic effects of seed ageing has potentially long-term implications on the genome stability of plant populations and ecosystem fitness. Collectively, we identify genome damage accumulated in suboptimal quality seed impacts on subsequent plant growth and genome stability, with associated implications for crop yields and plant survival under changing climates.
Evidence that RXFP4 is located in enterochromaffin cells and can regulate production and release of serotonin
Authors: Fernando Shalinda J.A. , Wang Qian , Hay Debbie L. , Bathgate Ross A.D. , Shepherd Peter R. , Lee Kate L.
Published: March 2023

RXFP4 is a G protein–coupled receptor (GPCR) in the relaxin family. It has recently been recognised that this receptor and its cognate ligand INSL5 may have a role in the regulation of food intake, gut motility, and other functions relevant to metabolic health and disease. Recent data from reporter-mice showed co-location of Rxfp4 and serotonin (5-HT) in the lower gut. We used human single-cell RNA sequence data (scRNASeq) to show that RXFP4 is in a subset of gut enterochromaffin cells that produce 5-HT in humans. We also used RNAScope to show co-location of Rxfp4 mRNA and 5-HT in mouse colon, confirming prior findings. To understand whether RXFP4 might regulate serotonin production, we developed a cell model using Colo320, a human gut-derived immortalised cell line that produces and releases serotonin. Overexpression of RXFP4 in these cells resulted in a constitutive decrease in cAMP levels in both the basal state and in cells treated with forskolin. Treatment of cells with two RXFP4 agonists, INSL5 derived peptide INSL5-A13 and small molecule compound-4, further reduced cAMP levels. This was paralleled by a reduction in expression of mRNA for TPH1, the enzyme controlling the rate limiting step in the production of serotonin. Overexpression of RXFP4 also attenuated the cAMP-induced release of serotonin from Colo320 cells. Together this demonstrates that serotonin producing enterochromaffin cells are the major site of RXFP4 expression in the gut and that RXFP4 can have inhibitory functional impacts on cAMP production as well as TPH1 expression and serotonin release.
Asteroseismology of evolved stars to constrain the internal transport of angular momentum
Authors: Moyano F. D. , Eggenberger P. , Mosser B. , Spada F.
Published: March 2023

Context. Asteroseismic measurements of the internal rotation rate in evolved stars pointed to a lack of angular momentum (AM) transport in stellar evolution models. Several physical processes in addition to hydrodynamical ones were proposed as candidates for the missing mechanism. Nonetheless, no current candidate can satisfy all the constraints provided by asteroseismology.

Aims. We revisit the role of a candidate process whose efficiency scales with the contrast between the rotation rate of the core and the surface. This process was proposed in previous works to be related to the azimuthal magneto-rotational instability.

Methods. We computed stellar evolution models of low- and intermediate-mass stars with the parametric formulation of AM transport proposed in previous works for this instability until the end of the core-helium burning for low- and intermediate-mass stars, and compare our results to the latest asteroseismic constraints available in the post-main sequence phase.

Results. Both hydrogen-shell-burning stars in the red-giant branch and core-helium-burning stars of low- and intermediate-mass in the mass range 1 M⊙ ≲ M ≲ 2.5 M⊙ can be simultaneously reproduced by this kind of parametrisation.

Conclusions. Given the current constraints from asteroseismology, the core rotation rate of post-main sequence stars seems to be well explained by a process whose efficiency is regulated by the internal degree of differential rotation in radiative zones.
A UNIONS view of the brightest central galaxies of candidate fossil groups
Authors: Chu A. , Durret F. , Ellien A. , Sarron F. , Adami C. , Márquez I. , Martinet N. , de Boer T. , Chambers K. C. , Cuillandre J.-C. , Gwyn S. , Magnier E. A. , McConnachie A. W.
Published: March 2023

Context. The formation process of fossil groups (FGs) is still under debate, and, because of their relative rarity, large samples of such objects are still missing.

Aims. The aim of the present paper is to increase the sample of known FGs, to analyse the properties of their brightest group galaxies (BGGs), and to compare them with a control sample of non-FG BGGs.

Methods. We extracted a sample of 87 FG and 100 non-FG candidates from a large spectroscopic catalogue of haloes and galaxies. For all the objects with data available in UNIONS (initially the Canada France Imaging Survey, CFIS) in the u and r bands, and/or in an extra r-band processed to preserve all low-surface-brightness features (rLSB), we performed a 2D photometric fit of the BGG with GALFIT with one or two Sérsic components. We also analysed how the subtraction of the intracluster light (ICL) contribution modifies the BGG properties. From the SDSS spectra available for the BGGs of 65 FGs and 82 non-FGs, we extracted the properties of their stellar populations with Firefly. To complement our study, and in order to provide a detailed illustration of the possible origin of emission lines in the FG BGGs, involving the presence or absence of an AGN, we investigated the origin of the emission lines in a nearby FG that is dominated by the NGC 4104 galaxy.

Results. Morphologically, a single Sérsic profile can fit most objects in the u band, while two Sérsics are needed in the r and rLSB bands, both for FGs and non-FGs. Non-FG BGGs cover a larger range of Sérsic index n. FG BGGs follow the Kormendy relation (mean surface brightness versus effective radius) previously derived for almost 1000 brightest cluster galaxies (BCGs), while the majority of non-FGs BGGs are located below this relation, with fainter mean surface brightnesses. This suggests that FG BGGs have evolved similarly to BCGs, and non-FG BGGs have evolved differently from both FG BGGs and BCGs. All the above properties can be strongly modified by the subtraction of the ICL contribution. Based on spectral fitting, the stellar populations of FG and non-FG BGGs do not differ significantly.

Conclusions. FG and non-FG BGGs differ from one another in terms of their morphological properties and Kormendy relation, suggesting they have had different formation histories. However, it is not possible to trace differences in their stellar populations or in their large-scale distributions.
Short-lived Radionuclides in the Milky Way Galaxy
Authors: Kaur Tejpreet
Published: March 2023

The short-lived radionuclides (SLRs) have a half-life ≤ 100 Myr. The γ-ray observations and excess abundance of their daughter nuclides in various meteoritic phases confirm the existence of SLRs in the Galaxy and early solar system (ESS), respectively. In this work, we have developed Galactic Chemical Evolution (GCE) models for SLRs, 26Al, and 60Fe along with 36Cl, 41Ca, and 53Mn. These models predict the temporal and spatial evolution of SLR abundance trends in the Galaxy from 2-18 kpc. The abundance of two SLRs, 26Al, and 60Fe, are investigated further, as their γ-ray observations are available for comparison with the model predictions. The predictions for the abundance per unit area for each ring show the decreases from the inner to outer regions of the Galaxy. The GCE predictions for the total mass of alive 26Al, and 60Fe in 2-18 kpc of the Galaxy at present time are 0.2 M⊙ and 0.08 M⊙, respectively.
Evolution of Accreting Neutron Star Common Envelopes and Their Nucleosynthesis Possible P-nuclide Production
Authors: Abrahams Sophie E. D. , Fryer Chris , Hall-Smith Alexander , Laird Alison , Diget Christian
Published: March 2023

In a binary system, a short lived phase called a common envelope can occur in which both stars share the envelope of the primary. During this phase, there is the opportunity for nucleosynthesis to occur at high temperatures and densities in the accretion disk which forms around the secondary star. The system of interest is one in which the secondary star is a neutron star. After introducing the system, our model is described and preliminary results are presented. Preliminary simulations show that light p-nuclides 92Mo and 96,98Ru are overproduced, and that the closer the material is to the neutron star prior to ejection, the fewer p-nuclides are produced.
Indirect measurement of the (n, γ)127Sb cross section
Authors: Pogliano Francesco , Larsen Ann-Cecilie , Bello Garrote Frank Leonel , Møller Bjørøen Marianne , Kvalheim Eriksen Thomas , Gjestvang Dorthea , Görgen Andreas , Guttormsen Magne , Li Kevin Ching Wei , Markova Maria , Matthews Eric Francis , Paulsen Wanja , Gaard Pedersen Line , Siem Sunniva , Storebakken Tellef , Gabor Tornyi Tamás , Ersland Vevik Julian
Published: March 2023

Sensitivity studies of the i process have identified the region around 135I as a bottleneck for the neutron capture flow. Nuclear properties such as the Maxwellian-averaged cross section (MACS) are key to constrain the uncertainties in the final abundance patterns. With the Oslo method, we are able to indirectly measure such properties for the nuclei involved in this process. From the 124Sn(α, pγ)127Sb reaction data we extract the nuclear level density and γ-ray strength function for 127Sb. The level density at higher excitation energies is compatible with the constant-temperature model, while the γ-ray strength function presents features like an upbend and a pygmy-like structure below S n. From these two quantities we can calculate the MACS for the 126Sb(n, γ)127Sb reaction using the Hauser-Feshbach formalism, and constrain its uncerainties from the theoretical ones. Libraries such as JINA REACLIB, TENDL and BRUSLIB agree well with the experimental results, while ENDF/B-VIII.0 predicts a higher rate.
Study of the 12C +16 O fusion reaction in carbon burning via the Trojan Horse Method
Authors: Oliva A. A. , Tumino A. , Soic N. , Prajapati P. M. , Acosta L. , Alba R. , Barba F. , Cherubini S. , D’Agata G. , Dell’Aquila D. , Di Pietro A. , Fernandez J.P. , Figuera P. , Galaviz Redondo D. , Guardo L. , Gulino M. , Hammache F. , Jelavic Malenica D. , Kiliç A.I. , La Cognata M. , La Commara M. , Lamia L. , Lattuada D. , Maiolino C. , Manicò G. , Mazzocco M. , Milin M. , Nanru Ma , Nurmukhanbetova A. , Nurkic D. , Palmerini S. , Parascandolo T. , Pierroutsakou D. , Pizzone R.G. , Popocovski R. , Rapisarda G.G. , Romano S. , Santonocito D. , Sergi M.L. , Shotter A. , Spartà R. , Spiridon A. , Trache L. , Vukman N. , Yamaguchi H.
Published: March 2023

12C +12 C is the main reaction during core and shell carbon burning in massive stars, however, at temperatures higher than 109K when most of the carbon is depleted and its abundance is lower than 16O, the 12C +16 O fusion can also become relevant. Moreover, 12C +16 O reaction can ignite also in the scenario of explosive carbon burning. The astrophysical energy region of interest thus ranges from 3 to 7.2 MeV in the center-of-mass frame. There are various measurements of the cross-section available in the literature, however, they all stop around 4 MeV, making extrapolation necessary at lower energies. To try to solve this uncertainty and corroborate direct measurement the Trojan Horse Method was applied to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 16O(12C, α)24Mg and 16O(12C, p)27Al reactions.
Proton capture on stored radioactive 118Te ions
Authors: Dellmann S. F. , Glorius J. , Litvinov Y. A. , Reifarth R. , Al-Khasawneh K. , Aliotta M. , Bott L. , Brückner B. , Bruno C. , Chen R. J. , Davinson T. , Dickel T. , Dillmann I , Dmytriev D. , Erbacher P. , Freire-Fernández D. , Forstner O. , Geissel H. , Göbel K. , Griffin C. J. , Grisenti R. , Gumberidze A. , Haettner E. , Hagmann S. , Heil M. , Heß R. , Hillenbrand P.-M. , Joseph R. , Jurado B. , Kozhuharov C. , Kulikov I. , Löher B. , Langer C. , Leckenby G. , Lederer-Woods C. , Lestinsky M. , Litvinov S. , Lorenz B. A. , Lorenz E. , Marsh J. , Menz E. , Morgenroth T. , Petridis N. , Pibernat J. , Popp U. , Psaltis A. , Sanjari S. , Scheidenberger C. , Sguazzin M. , Sidhu R. S. , Spillmann U. , Steck M. , Stöhlker T. , Surzhykov A. , Swartz J. A. , Törnqvist H. , Varga L. , Vescovi D. , Weick H. , Weigand M. , Woods P. , Xing Y. , Yamaguchi T.
Published: March 2023

Experimental determination of the cross sections of proton capture on radioactive nuclei is extremely difficult. Therefore, it is of substantial interest for the understanding of the production of the p-nuclei. For the first time, a direct measurement of proton-capture cross sections on stored, radioactive ions became possible in an energy range of interest for nuclear astrophysics. The experiment was performed at the Experimental Storage Ring (ESR) at GSI by making use of a sensitive method to measure (p,γ) and (p,n) reactions in inverse kinematics. These reaction channels are of high relevance for the nucleosyn-thesis processes in supernovae, which are among the most violent explosions in the universe and are not yet well understood. The cross section of the 118Te(p,γ) reaction has been measured at energies of 6 MeV/u and 7 MeV/u. The heavy ions interacted with a hydrogen gas jet target. The radiative recombination process of the fully stripped 118Te ions and electrons from the hydrogen target was used as a luminosity monitor. An overview of the experimental method and preliminary results from the ongoing analysis will be presented.
β-decay spectroscopy of neutron-deficient nuclei
Authors: Orrigo Sonja E. A. , Rubio Berta , Gelletly William
Published: March 2023

A systematic study of the β-decay of neutron-deficient nuclei has been carried out and has provided spectroscopic information of importance for both nuclear structure and nuclear astrophysics. Following an overview of the most relevant achievements, we focus on the latest results on the β decay of 60Ge and 62Ge. We also summarise our results on the mass excesses in comparison with systematics and a recent measurement. Finally, we present updated half-life trends for Tz = -1/2, -1 and -2 neutron-deficient nuclides.
Das digitale Unbewusste und die
Balint-Arbeit
Authors: Castigliego Guiliano
Published: March 2023

Unter dem Aspekt des Sehens und Gesehenwerdens werden die im Bereich der neuen
Medien entstehende psychischen Prozesse bei den Nutzern intrasubjektiv und
interaktionell thematisiert. Dies erfolgt unter Hinweis auf Freud und den
Begriffen des Unbewussten und des Traumverständnisses. Auch für
das Digitale gilt: Es gibt in diesem System keine Negation, keinen Zweifel,
keine Grade von Sicherheit. Der Begriff eines psychodynamischen digitalen
Unbewussten wird eingeführt und erläutert. Die Konsequenzen
für die Balintgruppe werden beschrieben mit der Möglichkeit
diese auch als sozialen Übergangsraum zu verstehen.
Grundwerte: Zusammenhalt und Flexibilität: von Kleingruppen
bis zur IBF
Authors: Parée Michèle
Published: March 2023

Gibt es noch einen Zusammenhang zwischen der Balint-Arbeit in den
fünfziger Jahren und dem, was wir heute tun? Die Teilnahme an einer
Balintgruppe braucht Zeit, hilft es den Betreuern wirklich? Lohnen sich
Balintgruppen noch? Die Medizin hat sich verändert, es gibt mehr
wissenschaftliche Erkenntnisse und die Technologie hat sich weiterentwickelt,
die Hausärzte sind der Allgemeinmedizin gewichen, ist es nicht besser,
einen akademischen Kurs zu besuchen, um ihr Wissen zu erweitern? Und was ist mit
einer so „großen Gruppe“ wie der IBF? Wie können
wir eine effektive Zusammenarbeit fortsetzen? Wir haben Mindestkriterien, reicht
das? Teilen wir die gleichen Grundwerte? Was sind sie? Ist die IBF-Einheit ein
Mythos? Welchen Stellenwert hat Klatsch in unserem Bereich? Die Pandemie und die
steigenden Mitgliederzahlen könnten uns in eine Krise führen.
Wie können wir das durchstehen, ohne uns
„persönlich“ zu treffen?
Effect of Tinnitus on Sleep Quality and Insomnia
Authors: Gallo Katherine Eloise Bornancin , Corrêa Camila de Castro , Gonçalves Claudia Giglio de Oliveira , Correia Baran Jordana Batista , Marques Jair Mendes , Zeigelboim Bianca Simone , José Maria Renata
Published: March 2023

Introduction Tinnitus is a conscious perception of a sound resulting from abnormal activity within the nervous system. A relevant percentage of tinnitus patients report symptoms severe enough to significantly affect quality of life, including sleep disorders.

Objective To analyze the sleep quality, insomnia, daytime sleepiness, and risk of obstructive sleep apnea (OSA) in participants with tinnitus.

Methods The sample comprised 18 adults and older adults aged between 18 and 85 years old (mean age = 58.7 ± 17.5 years old), females and males, with complaint of continuous tinnitus for > 1 month. The instruments used were the Tinnitus Handicap Inventory (THI) questionnaire, the Insomnia Severity Index, the Pittsburgh Sleep Quality Index, the Epworth Sleepiness Scale, and the STOP-Bang questionnaire.

Results By means of the THI questionnaire, the tinnitus severity degree reported by most participants was mild (27.8%) and moderate (27.8%), having a positive (r = 0.582) and significant (0.011) correlation to sleep quality, measured by means of the Pittsburgh questionnaire. There was a positive correlation between the Insomnia Severity Index and tinnitus handicap (r = 0.499; p = 0.035). A total of 72.2% of the participants self-assessed their sleep quality as poor, in addition to moderate insomnia (27.8%), although there is low risk of OSA (66.7%), without complaints of excessive daytime sleepiness (72.2%).

Conclusion Subjects with tinnitus complaint self-rated their sleep quality as poor. Moreover, the higher the reported tinnitus handicap, the greater the symptoms of insomnia. There was no influence of tinnitus in relation to daytime sleepiness and no relationship between the severity of tinnitus and the risk of OSA.
IScore, a useful prognostic tool for patients with acute ischemic stroke treated with intravenous thrombolysis: a validation study
Authors: Scavasine Valéria Cristina , Costa Rebeca Teixeira , Zétola Viviane de Hiroki Flumignan , Lange Marcos Christiano
Published: March 2023

Background Stroke is one of the major causes of disability and mortality worldwide. Up to 30% of individuals who experience stroke die within 30 days, and more than 50% of those who survive will have some degree of disability. There are some predetermining factors based on admission data that could be used to objectively assess the odds of poor outcomes, including the Ischemic Stroke Predictive Risk Score (IScore).

Objective To analyze and validate the IScore in patients undergoing intravenous thrombolysis for stroke and compare the results of this predictor with actual death and disability outcomes.

Methods In a retrospective study, data were collected from a database housed at the Stroke Unit of the Teaching Hospital of Universidade Federal do Paraná, Southern Brazil. The IScore was applied to admission data from 239 patients, and the results were compared with actual outcomes (death and disability) within 30 days and 1 year after the stroke event. Data analysis was performed using an analysis of the receiver operating characteristic (ROC) curve to determine the sensitivity and specificity of the IScore in the study population.

Results The IScore demonstrated moderate sensitivity and high specificity in patients with stroke who underwent thrombolysis when evaluated after 30 days and 1 year of the event.

Conclusions The IScore can be applied to in stroke patients undergoing thrombolysis; therefore, it may be used as an objective prognostic tool to guide clinical decision-making. Understanding the prognosis of patients in the acute phase can assist clinicians in making the best therapeutic decisions and enable better end-of-life care.
Neurological symptoms and comorbidity profile of hospitalized patients with COVID-19
Authors: Cremaschi Renata Carvalho , Bahi Carla Alessandra Scorza , Paola Angelo Amato Vincenzo de , Arakaki Jaquelina Sonoe Ota , Ferreira Paulo Roberto Abrão , Bellei Nancy Cristina Junqueira , Borges Vanderci , Coelho Fernando Morgadinho Santos
Published: March 2023

Background The neurological manifestations in COVID-19 adversely impact acute illness and post-disease quality of life. Limited data exist regarding the association of neurological symptoms and comorbid individuals.

Objective To assess neurological symptoms in hospitalized patients with acute COVID-19 and multicomorbidities.

Methods Between June 2020 and July 2020, inpatients aged 18 or older, with laboratory-confirmed COVID-19, admitted to the Hospital São Paulo (Federal University of São Paulo), a tertiary referral center for high complexity cases, were questioned about neurological symptoms. The Composite Autonomic Symptom Score 31 (COMPASS-31) questionnaire was used. The data were analyzed as a whole and whether subjective olfactory dysfunction was present or not.

Results The mean age of the sample was 55 ± 15.12 years, and 58 patients were male. The neurological symptoms were mostly xerostomia (71%), ageusia/hypogeusia (50%), orthostatic intolerance (49%), anosmia/hyposmia (44%), myalgia (31%), dizziness (24%), xerophthalmia (20%), impaired consciousness (18%), and headache (16%). Furthermore, 91% of the patients had a premorbidity. The 44 patients with subjective olfactory dysfunction were more likely to have hypertension, diabetes, weakness, shortness of breath, ageusia/hypogeusia, dizziness, orthostatic intolerance, and xerophthalmia. The COMPASS-31 score was higher than that of previously published controls (14.85 ± 12.06 vs. 8.9 ± 8.7). The frequency of orthostatic intolerance was 49% in sample and 63.6% in those with subjective olfactory dysfunction (2.9-fold higher risk compared to those without).

Conclusion A total of 80% of inpatients with multimorbidity and acute COVID-19 had neurological symptoms. Chemical sense and autonomic symptoms stood out. Orthostatic intolerance occurred in around two-thirds of the patients with anosmia/hyposmia. Hypertension and diabetes were common, mainly in those with anosmia/hyposmia.
Simulating airflows with a deep attention network for physical interpretability
Authors: Thompson Avery
Published: March 2023

Machine learning model offers interpretability, accuracy, and computational efficiency for flow field calculations
Superimposed wavefront imaging of diffraction-enhanced x-rays: A method to achieve higher resolution in crystal analyzer-based x-ray phase-contrast imaging
Authors: Sunaguchi Naoki , Yuasa Tetsuya , Shimao Daisuke , Ichihara Shu , Gupta Rajiv , Ando Masami
Published: March 2023

In conventional phase-contrast imaging methods, an optimum distance that is essential for x-ray interference and wavefront separation must be maintained between the object and the x-ray detector. This distance determines the apparent focal size of the x-ray source and affects spatial resolution of the system. To improve the spatial resolution, we proposed a phase-contrast imaging method that eliminates the distance required for x-ray interference and wavefront separation by placing a scintillator in close contact with a Laue angle analyzer (LAA). We mathematically described the image formed by superposition of diffracted beams in two directions of LAA and introduced a method to reconstruct tomographic sections from multiple projections captured by this setup. We experimentally demonstrated the validity and the usefulness of the proposed method. Using a physical phantom, we showed that the proposed method provides higher spatial resolution than conventional x-ray dark-field imaging. The proposed method may be useful for studying and elucidating the fine 3D microanatomy and histopathology of various biological specimens.
Blood flow restricted walking alters gait kinematics
Authors: Walden Thomas P. , Fairchild Timothy , Girard Olivier , Peiffer Jeremiah J. , Jonson Andrew M. , Dempsey Alasdair R.
Published: March 2023

This study investigated the impact of blood flow restriction (BFR) during treadmill walking on gait kinematics. Twenty‐one participants completed one familiarisation and four experimental sessions, including two walking speeds (moderate [5.0 ± 0.3km·h−1] and fast [6.4 ± 0.4km·h−1]) and two occlusion conditions (BFR [60% of arterial occlusion pressure] and unrestricted). For each exercise intensity, the BFR session was performed first. Participants were instructed to walk as long as possible, with sessions capped at 20 min. Unrestricted sessions were time‐matched, and the order of exercise intensity was randomised. Kinematics were collected over 10s every minute using retro‐reflective markers affixed to specific body landmarks. Ratings of perceived exertion and discomfort were collected every two minutes. Blood samples were collected from the fingertip pre‐exercise and the finger and toe post‐exercise, and were analysed for lactate, electrolytes, and markers of cell‐membrane damage. During the BFR sessions the cuffs remained inflated while the blood samples were collected. Fast‐walk BFR sessions exhibited higher anterior trunk flexion (p = 0.001) and knee flexion during stance (p = 0.001) compared to all other sessions. Step width was increased during BFR sessions (p = 0.001), but no difference in step length (p = 0.300) or cadence (p = 0.922) were observed. The time required to elicit change in anterior trunk flexion and plantar‐flexion angle at toe‐off was shorter during BFR sessions (p = 0.024). The BFR sessions elicited the highest ratings of perceived exertion and discomfort, as well as blood lactate concentration (p ≤ 0.001). Application of BFR during moderate and fast treadmill walking modifies gait kinematics and exacerbates exercise‐related sensations as well as blood lactate concentration.
CCL5-producing migratory dendritic cells guide CCR5+ monocytes into the draining lymph nodes
Authors: Rawat Kavita , Tewari Anita , Li Xin , Mara Arlind B. , King William T. , Gibbings Sophie L. , Nnam Chinaza F. , Kolling Fred W. , Lambrecht Bart N. , Jakubzick Claudia V.
Published: March 2023

Dendritic cells (DCs) and monocytes capture, transport, and present antigen to cognate T cells in the draining lymph nodes (LNs) in a CCR7-dependent manner. Since only migratory DCs express this chemokine receptor, it is unclear how monocytes reach the LN. In steady-state and following inhalation of several PAMPs, scRNA-seq identified LN mononuclear phagocytes as monocytes, resident, or migratory type 1 and type 2 conventional (c)DCs, despite the downregulation of Xcr1, Clec9a, H2-Ab1, Sirpa, and Clec10a transcripts on migratory cDCs. Migratory cDCs, however, upregulated Ccr7, Ccl17, Ccl22, and Ccl5. Migratory monocytes expressed Ccr5, a high-affinity receptor for Ccl5. Using two tracking methods, we observed that both CD88hiCD26lomonocytes and CD88−CD26hi cDCs captured inhaled antigens in the lung and migrated to LNs. Antigen exposure in mixed-chimeric Ccl5-, Ccr2-, Ccr5-, Ccr7-, and Batf3-deficient mice demonstrated that while antigen-bearing DCs use CCR7 to reach the LN, monocytes use CCR5 to follow CCL5-secreting migratory cDCs into the LN, where they regulate DC-mediated immunity.
Report on the APMP key comparison of hydrometer calibrations APMP.M.D-K4
Authors: Lee K-C , Lee Y J , Inoue F , Toda K , Fujii K , Nor Fazrul Mohd , Tulasombut V , Steyn R , Fen K , Sutton C , Mandal G , Xu C , Fos Marilyn C , Hayu Renanta
Published: March 2023

Main text

This report describes the APMP key comparison on the hydrometer calibrations, APMP.M.D-K4. This comparison is an APMP regional key comparison of CIPM key comparison CCM.D-K4.

Three hydrometers in the density range from 640 kg m-3 and 1 320 kg m-3 were used as travelling standards. Each hydrometer has a nominal density range of 20 kg m-3 with a scale division of 0.2 kg m-3. Eleven laboratories participated in this comparison. All laboratories except NMISA are from APMP. NMISA from AFRIMETS is also an APMP associate member.

Each participant reported the results of hydrometer calibration using Cuckow's method. The reference temperature for the hydrometer calibration was 20 °C and the surface tension of the reference liquid was given in the protocol for this comparison. KRISS and NMIJ acted as pilot and coordinating laboratories.

The measurement was performed between July 2008 and April 2010. The report from participants was completed in February 2012. The results of this comparison were linked to CCM.D-K4 through the results of KRISS, NMIJ, and NMIA.

NPLI, SNSU-BSN, and NMISA withdrew their results while preparing Draft A report of this comparison. The results of two participants, MSL and NIM, were inconsistent. However, because it has been more than 10 years since the measurements were completed, it is difficult to determine that the results reflect the current measurement capabilities of the two participants.

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.

The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Erratum: Numerical study of stripping and stray particles for the one-RF-driver NBI negative ion source prototype of CFETR (2016 Plasma Phys. Control. Fusion
64 115005)
Authors: Song Fei , Zou Guiqing , Li Dong , Zuo Chen , Chen Peng , Chen Dezhi , Lei Guangjiu
Published: March 2023

Erratum for Plasma Phys. Control. Fusion
64 115005
The absorption properties of one-dimensional spherical photonic crystals based on plasma material
Authors: Zhu Tianqi , Lv You , Wang Ziran , Zhang Haifeng
Published: March 2023

The first theoretical treatment of the electromagnetic properties of one-dimensional plasma spherical photonic crystals (1D PSPCs) in the non-magnetized state is carried out to obtain the expressions for the electric and magnetic fields. The utilization of the transfer matrix method provides a new idea for the exploration of the 1D PSPCs, based on which the expressions for the absorptance of the 1D PSPCs are derived. A structure of quasi-periodic 1D PSPCs arranged according to the Thue-Morse sequence is proposed to acquire the ultra-wide absorption bands (ABs) at large incidence angles by adding an air layer and setting the plasma frequency in a gradient. And the factors affecting the ABs are meticulously analyzed. It is figured out that the primary factors affecting ABs are topology and plasma frequency, both of which have vigoroso influences on the bandwidths and positions of ABs. However, the initial radius and the collision frequency prevailingly affect the amplitude of the absorptance. The unexceptionable geometric properties of the 1D PSPCs make them sensitive to parameter changes and can be applied in the field of absorbers and radomes, which have great application prospects and development space.
Interfacial properties of defective carbon nanotube/polypropylene composites: a molecular dynamics approach
Authors: Mani Akash , Sharma Sumit
Published: March 2023

Carbon nanotube (CNT) reinforced nanocomposites have garnered a lot of attention as a very appealing alternative to traditional composite materials owing to their mechanical, chemical, thermal, and electrical characteristics. The interfacial properties of pristine CNT-polypropylene (CNT-PP) composites were evaluated in this study using molecular dynamics (MD) simulations. The pull-out process was performed for varying volume fractions (4%–14%) of the CNT. The maximum interfacial shear stress (IFSS) was obtained at a volume fraction of 6% for (6,6) armchair SWCNT. MD simulations have been performed on the nanocomposites to investigate the impact of Stone-Wales (SW) and vacancy defective CNT on the IFSS of the composites. The IFSS showed a maximum enhancement of 2.25% when 4.16% degree defects were loaded on the SWCNT in case of SW defects whereas the IFSS degraded by 11.97% for the same degree defect in case of vacancy defects. The presence of SW defects in the CNT enhanced the interfacial properties of composites whereas the CNTs with vacancy defects deteriorated the IFSS of the nanocomposite.
Theoretical optimization of cavity configurations for fiber lasers: enhancement of mode oscillation and slow-light effect
Authors: Fadhali Mohammed M
Published: March 2023

This article theoretically investigates the optimization of various fiber Bragg cavities for sustaining laser oscillation and amplification in fiber lasers designed as distributed feedback reflectors and/or distributed Bragg reflectors. Coupled mode theory with the transfer matrix method have been used to obtain reflection and transmission spectra as well as group delay and dispersion for characterizing the proposed cavities. The optimum configuration gives symmetrical spectra with single-mode oscillation in the stop-band manifesting an enhanced slow-light process. Various cavity parameters such as cavity configuration, length, pitch, and structure of the grating are found to have a significant effect on the field confinement, oscillated modes, and dispersion of the spectrum. Cavities formed by phase-shifted FBGs showed better photon confinement, and better reinforcement of single-mode oscillations. By incorporating an extra etalon-like cavity (etalon), uniform spectra with wider stop-band can be manifested and single-mode oscillations with remarkable delay for the slow-light effect are maintained.
An innovative technique to solve a fractal damping Duffing-jerk oscillator
Authors: El-Dib Yusry O , Elgazery Nasser S , Khattab Youmna M , Alyousef Haifa A
Published: March 2023

The idea of the present article is to look into the nonlinear dynamics and vibration of a damping Duffing-jerk oscillator in fractal space exhibiting the non-perturbative approach. Using a new analytical technique, namely, the modification of a He’s fractal derivative that converts the fractal derivative to the traditional derivative in continuous space, this study provides an effective and easy-to-apply procedure that is dependent on the He’s fractal derivative approach. The analytic approximate solution has a significant match with the results of the numerical simulation as the fractal parameter is very closer to unity, which proves the reliability of the method. Stability behavior is discussed and illustrated graphically. These new powerful analytical tools are developed in an attempt to obtain effective analytical tools, valid for any fractal nonlinear problems.
Null test for cosmic curvature using Gaussian process*
Authors: Wu Peng-Ju , Qi Jing-Zhao , Zhang Xin
Published: March 2023

The cosmic curvature

, which determines the spatial geometry of the universe, is an important parameter in modern cosmology. Any deviation from

would have a profound impact on the primordial inflation paradigm and fundamental physics. In this work, we adopt a cosmological model-independent method to test whether

deviates from zero. We use the Gaussian process to reconstruct the reduced Hubble parameter

and the derivative of the distance

from observational data and then determine

with a null test relation. The cosmic chronometer (CC) Hubble data, baryon acoustic oscillation (BAO) Hubble data, and supernovae Pantheon sample are considered. Our result is consistent with a spatially flat universe within the domain of reconstruction

, at the

confidence level. In the redshift interval

, the result favors a flat universe, while at

, it tends to favor a closed universe. In this sense, there is still a possibility for a closed universe. We also carry out the null test of the cosmic curvature at

using the simulated gravitational wave standard sirens, CC+BAO, and redshift drift Hubble data. The result indicates that in the future, with the synergy of multiple high-quality observations, we can tightly constrain the spatial geometry or exclude the flat universe.
Light meson emissions of selected charmonium-like states within compact tetraquark configurations*
Authors: Li Ning , He Hui-Zhen , Liang Wei , Lü Qi-Fang , Chen Dian-Yong , Dong Yu-Bing
Published: March 2023

We adopt the quark pair creation model to investigate the light meson emissions of several charmonium-like states. The quark pair creation model is applied to four-body systems, and we calculate the pion/kaon emissions of

,

,

,

,

, and

within compact tetraquark configurations. We find that the pion/kaon decay widths of

and

are relatively small, whereas the partial decay widths of the resonances

,

,

, and

are significant. We expect that our exploration of these decay behaviors will provide useful information for future experimental searches and theoretical interpretations.