bluuebunny/crossref_metadata_2025 huggingface dataset:
Gastric cancer specific drug delivery with hydrophilic peptide probe conjugation
Authors: Kwak Moon Hwa , Yun Seul Ki , Yang Seung Mok , Myeong Seokho , Park Jae Myung
Published: November 2023

Our new peptide probe specifically targeted gastric cancer and its hydrophilicity converted the hydrophobic photosensitizer into hydrophilic. A synthetic photosensitizer complex with the new probe induced gastric cancer-specific theranostics.
Additive effect on hot carrier cooling in a hybrid perovskite
Authors: Zhao Yuanju , Wang Peng , Wu Tai , Zhao Rongjun , Xie Lin , Hua Yong
Published: November 2023

This work reports that incorporating an organic small molecule (TDGA) into perovskite as an additive can effectively slow hot carrier (HC) cooling, which helps the HC extraction by the carrier transport layer, thus resulting in enhanced performance of perovskite solar cells.
Synthesis of N-substituted phthalimides via Pd-catalyzed [4+1] cycloaddition reaction
Authors: Hu Chengxian , Wang Lu , Wu Yuanyuan , Zheng Yonglong , Fu Ying , Du Zhengyin
Published: November 2023

An effective approach of Pd-catalyzed [4+1] cycloaddition of 2-iodo-N-phenylbenzamides with difluorocarbene to access of N-substituted phthalimides is developed.
DNA methylation induces subtle mechanical alteration but significant chiral selectivity
Authors: Zeng Yi , Mao Yujia , Chen Yanjun , Wang Yuhong , Xu Shoujun
Published: November 2023

Super-resolution force spectroscopy reveals methylated nucleotides enhance DNA mechanical stability and can induce significant chiral selectivity toward drug binding.
A spectrophotometric study of the impact of pH and metal-to-ligand ratio on the speciation of the Pu(vi)-oxalate system
Authors: Sockwell A. Kirstin , DiBlasi Nicole A. , Hixon Amy E.
Published: November 2023

Two aqueous Pu(vi)-oxalate species were identified through a spectroscopic study of the Pu(vi)-oxalate system as a function of [oxalate], pH, and metal-to-ligand ratio. The formation constants for both species were calculated from this data.
Development and test of highly accurate endpoint free energy methods. 3: partition coefficient prediction using a Poisson–Boltzmann method combined with a solvent accessible surface area model for SAMPL challenges
Authors: Niu Taoyu , He Xibing , Han Fengyang , Wang Luxuan , Wang Junmei
Published: November 2023

Apply a Poisson–Boltzmann surface area method for transfer free energy calculations.
Tailoring flavin-based photosensitizers for efficient photooxidative coupling of benzylic amines
Authors: Guo Huimin , Qiu Yang , Liu Siyu , Zhang Xiangyu , Zhao Jianzhang
Published: November 2023

The heavy atom effect of Br facilitates the intersystem crossing to triplet excited states, enhancing the performance of 7,8-dibromoflavin in photooxidative coupling of benzylic amines to give imines, mainly through excited state electron transfer.
Elastic and electronically inelastic scattering of electrons by the pyrazine molecule
Authors: Silva Murilo O. , Moreira Giseli M. , Rosado Jaime , Blanco Francisco , García Gustavo , Bettega Márcio H. F. , da Costa Romarly F.
Published: November 2023

We report on elastic and electronically inelastic integral and differential cross sections as well as ionization and total cross sections for electron collisions with the pyrazine molecule.
Photocatalytic C(sp3)–H bond functionalization by Cu(i) halide cluster-mediated O2 activation
Authors: Liu Mingxu , Cai Junkai , Huang Lei , Duan Chunying
Published: November 2023

Through Cu(i)-halide cluster-mediated O2 activation, both monooxygenation and C–C coupling of C(sp3)–H bonds are achieved efficiently upon irradiation.
Ruthenium(ii) complexes with phosphonate-substituted phenanthroline ligands as reusable photoredox catalysts
Authors: Morozkov Gleb V. , Abel Anton S. , Lyssenko Konstantin A. , Roznyatovsky Vitaly A. , Averin Alexei D. , Beletskaya Irina P. , Bessmertnykh-Lemeune Alla
Published: November 2023

Ru(ii) complexes with phosphonate-substituted phenanthroline ligands exhibited higher efficiency than the benchmark photocatalyst [Ru(bpy)3]2+ in photoredox-catalyzed reactions and could be recycled through water extraction for reuse.
Enhanced luminescence properties through heavy ancillary ligands in [Pt(C^N^C)(L)] complexes, L = AsPh3 and SbPh3
Authors: Jordan Rose , Maisuls Iván , Nair Shruthi S. , Dietzek-Ivanšić Benjamin , Strassert Cristian A. , Klein Axel
Published: November 2023

The introduction of heavy ancillary ligands L = AsPh3 and SbPh3 in [Pt(C^N^C)(L)] complexes was explored to enhance the luminescence efficiency through increased spin orbit coupling.
Thermal imaging study of Sm2+ doped SrB4O7 based on time-resolved technology
Authors: Cao Zhongmin , Wei Xiantao , Zhou Xianju , Li Li , Chen Yonghu , Wang Yongjie , Xie Guangxin , Yin Min
Published: November 2023

By applying Intensified Charge Coupled Device, the SrB4O7:5%Sm2+ shows high sensitivity and thermal stability for temperature imaging application.
An improved method for the synthesis and formation mechanism of M2B10H14 based on the reactions of B10H14 with MNH2BH3 (M = Na, K)
Authors: Chen Xi-Meng , Yu Xing-Chao , Chi Jing-Xian , Jing Yi , Wang Hongju , Zhang Na , Zhang Chen , Ge Yi-Wen , Chen Xuenian
Published: November 2023

An improved method for the synthesis of M2B10H14 (M = Na and K) has been developed, and two possible formation mechanisms of the B10H142− anion were proposed, in which the NH2BH3− anion acts as a proton abstractor and a hydride donor.
Tailoring hydroxyl groups of organic phenazine anodes for high-performance and stable alkaline batteries
Authors: Cui Huilin , Zhang Dechao , Wu Zhuoxi , Zhu Jiaxiong , Li Pei , Li Chuan , Hou Yue , Zhang Rong , Wang Xiaoqi , Jin Xu , Bai Shengchi , Zhi Chunyi
Published: November 2023

With the aid of a hydroxyl group as an electron-donating group, the redox potential of phenazine derivatives is reduced, and the rate performance increases due to the hydrogen bonds between hydroxyl molecules.
Low-carbon transition pathways of power systems for Guangdong–Hongkong–Macau region in China
Authors: Liu Zuming , Li Mingquan , Virguez Edgar , Xie Xiaomin
Published: November 2023

Nuclear, offshore-wind, and imported electricity are essential for decarbonizing the GHM power system. Achieving carbon neutrality in the GHM power system by 2050 requires an average annual expense of 21.8 billion USD.
Continuous flow synthesis of PCN-222 (MOF-545) with controlled size and morphology: a sustainable approach for efficient production
Authors: Zuliani Alessio , Carmen Castillejos M. , Khiar Noureddine
Published: November 2023

The first synthesis of Zirconium-based MOF PCN-222 with defined morphology using continuous flow chemistry is reported. The potential for biomedical applications is explored by loading a thio-N-acetyl galactosamine-PEG-sulfate ligand.
Organosolv biorefinery: resource-based process optimisation, pilot technology scale-up and economics
Authors: Tofani Giorgio , Jasiukaitytė-Grojzdek Edita , Grilc Miha , Likozar Blaž
Published: November 2023

Organosolv process: from biomass to sustainable products.
The mechanism of sample composition variation in the selective laser melting process based on the laser-induced breakdown spectroscopy and Raman system detection
Authors: Lin Jingjun , Li Yao , Lin Xiaomei , Che Changjin
Published: November 2023

Laser induced-breakdown spectroscopy (LIBS) and Raman spectroscopy are utilized to characterize the changing patterns of elements and molecules before and after additive manufacturing.
Stability of iron single atoms in graphene structures from X-ray absorption spectroscopy data
Authors: Krot Anna , Savilov Serguei , Arkhipova Ekatherina , Kalmykov Stepan
Published: November 2023

Fe-intercalated graphene nanoflakes were heated to 80 °C with nitric acid and XAS spectra at different stages of the oxidation were collected and analyzed.
Digital microfluidics with distance-based detection – a new approach for nucleic acid diagnostics
Authors: Ho Man , Sathishkumar N. , Sklavounos Alexandros A. , Sun Jianxian , Yang Ivy , Nichols Kevin P. , Wheeler Aaron R.
Published: November 2023

We introduce the integration of digital microfluidics (DMF) with distance-based detection (DBD). This platform allows for miniaturized diagnosis of infectious diseases in a format that is easy to operate with a detection scheme that can be read by eye.
Fabrication of amorphous Co/Mo–MnSex electrode materials for high-performance hybrid supercapacitors
Authors: Zhang Qian , Wang Guoxiang , Chen Taipu , Wu Hao , Yuan Rui , Ai Boyan , Liang Pengchao , Fang Dahui , Min Qingwang
Published: November 2023

Assembled Co/Mo–MnSex//AC HBS devices and electrochemical properties.
π-Extended indoloquinoxaline functionalized triarylamines with ethynyl and tetracyanobutadiene bridges for p-channel and ambipolar OFETs
Authors: Devibala Panneerselvam , Balambiga Balu , Imran Predhanekar M. , Nagarajan Samuthira
Published: November 2023

New π-extended donor–acceptor (D–A) indoloquinoxaline functionalized triarylamines with different π-bridging central motifs such as ethynyl and tetracyanobutadiene were synthesized and analyzed for p-channel and ambipolar organic field-effect transistors.
Effect of adenosine monophosphate on visible-light driven nicotinamide mononucleotide reduction in a system of water-soluble zinc porphyrin and colloidal rhodium nanoparticles
Authors: Suehiro Kazuma , Amao Yutaka
Published: November 2023

Effect of adenosine monophosphate on visible-light driven nicotinamide mononucleotide reduction in a system of water-soluble zinc porphyrin and colloidal rhodium nanoparticles dispersed with polyvinylpyrrolidone was clarified.
Development of enzyme–inorganic hybrid nanoflower-modified electrodes and a smartphone-controlled electrochemical analyzer for point-of-care testing of salivary amylase in saliva
Authors: Liu Cong , Gong Xia , Yang Xiao , Yu Zipei , Li Weihao , Liao Guangyi , Lin Chuanquan , Jiang Lelun , Yi Changqing
Published: November 2023

This study reports a POCT system for sAA quantitation with clinically acceptable accuracy in any setting. Preliminary clinical studies using this system reveal the great potential of sAA as an early warning indicator of abnormal glucose metabolism.
In silicodesign of a lipid-like compound targeting KRAS4B-G12D through non-covalent bonds
Authors: Lu Huixia , Hu Zheyao , Faraudo Jordi , Martí Jordi
Published: November 2023

Using Molecular Dynamics simulations, we propose a new lipid-like compound that can target both oncogenic GDP/GTP-bound KRAS4B-G12D mutant and PDE-δso that it can foster drug discovery research on the RAS family and beyond.
Unlocking the full potential of citric acid-synthesized carbon dots as a supercapacitor electrode material via surface functionalization
Authors: Özge Alaş Çolak Melis , Güngör Ahmet , Akturk Merve Buldu , Erdem Emre , Genç Rükan
Published: November 2023

Functionalization of green-emitting carbon dots with hyperbranched bis(methylol)propionic acid (bis-MPA) polyester hydroxyl polymers resulted in the successful passivation of surface defects and hence better performance in supercapacitors.
Melt memory in propene–pentene isotactic copolymers: the case of defects hosted in the crystals
Authors: De Stefano Fabio , Cicolella Alessandra , Barreca Annachiara , Scoti Miriam , De Rosa Claudio
Published: November 2023

Incorporation of pentene in isotactic polypropylene produces a memory of the crystalline state in the melt that persists up to temperatures higher than the melting temperature giving self-nucleation and favoring crystallization of the γ form.
Photoredox-catalyzed difunctionalization of alkenes with oxime esters and NH-sulfoximines
Authors: Li Hao-Cong , Li Guan-Nan , Wang Hao-Sen , Tan Yan , Chen Xiao-Lan , Yu Bing
Published: November 2023

A visible-light-induced one-pot three-component reaction of cycloketone oxime esters, NH-sulfoximines, and alkenes was developed for the difunctionalization of alkenes.
Structural modulation of insulin by hydrophobic and hydrophilic molecules
Authors: Begum Shahnaz , Parvej Hasan , Dalui Ramkrishna , Paul Swarnali , Maity Sanhita , Sepay Nayim , Afzal Mohd , Chandra Halder Umesh
Published: November 2023

In the bloodstream, insulin interacts with various kinds of molecules, which can alter its structure and modulate its function.
Calculating shear viscosity with confined non-equilibrium molecular dynamics: a case study on hematite – PAO-2 lubricant
Authors: Mathas Dimitrios , Sarpa Davide , Holweger Walter , Wolf Marcus , Bohnert Christof , Bakolas Vasilios , Procelewska Joanna , Franke Joerg , Rödel Philipp , Skylaris Chris-Kriton
Published: November 2023

Atomistic simulations show for the first time how the variation of a lubricant's film thickness affects viscosity and at what point it eventually becomes comparable with the bulk simulation of a lubricant, at different pressures and shear regimes.
A combined crystallographic and theoretical investigation of noncovalent interactions in 1,3,4-oxadiazole-2-thione-N-Mannich derivatives: in vitro bioactivity and molecular docking
Authors: Al-Wahaibi Lamya H. , Alagappan Kowsalya , Gomila Rosa M. , Blacque Olivier , Frontera Antonio , Percino M. Judith , El-Emam Ali A. , Thamotharan Subbiah
Published: November 2023

Qualitative and quantitative analyses of hydrogen, halogen and unconventional noncovalent interactions in two 3-arylaminomethyl N-Mannich bases are described in addition to antibacterial and anticancer properties.
A recombinant approach for stapled peptide discovery yields inhibitors of the RAD51 recombinase
Authors: Pantelejevs Teodors , Zuazua-Villar Pedro , Koczy Oliwia , Counsell Andrew J. , Walsh Stephen J. , Robertson Naomi S. , Spring David R. , Downs Jessica A. , Hyvönen Marko
Published: November 2023

An approach for stapled peptide preparation in small scale using recombinant expression of peptide–protein fusions in bacteria. We use this approach to design binders of RAD51, characterise their interaction and demonstrate activity in cells.
Free-energy decomposition of salt effects on the solubilities of small molecules and the role of excluded-volume effects
Authors: Hervø-Hansen Stefan , Lin Daoyang , Kasahara Kento , Matubayasi Nobuyuki
Published: November 2023

The separated contributions from cations, anions, and water in solvation of small molecules are addressed, and the role of the excluded-volume effect is pointed out through correlation analyses.
Correction: A non-sacrificial method for the quantification of poly(ethylene glycol) grafting density on gold nanoparticles for applications in nanomedicine
Authors: Lu Jun , Xue Yao , Shi Rui , Kang Jing , Zhao Chao-Yang , Zhang Ning-Ning , Wang Chun-Yu , Lu Zhong-Yuan , Liu Kun
Published: November 2023

Correction for ‘A non-sacrificial method for the quantification of poly(ethylene glycol) grafting density on gold nanoparticles for applications in nanomedicine’ by Jun Lu et al., Chem. Sci., 2019, 10, 2067–2074, https://doi.org/10.1039/C8SC02847H.
Balanced chemical reactivity, antimicrobial properties and biocompatibility of decellularized dermal matrices for wound healing
Authors: Huang Xuantao , Ding Zhuang , Feng Rongxin , Zheng Xin , Yang Na , Chen Yining , Dan Nianhua
Published: November 2023

The prevention of bacterial infection and prompt wound repair are crucial considerations when local skin tissue is compromised by burns, cuts, or similar injuries.
Inducing local charge polarization by constructing isomeric covalent organic frameworks with different orientations of imine bonds for enhancing photocatalytic hydrogen evolution
Authors: He Huan , Shen Rongchen , Zhang Peng , Liang Guijie , Li Xin
Published: November 2023

The N-atom orientation of imine bonds towards the acceptor in COFs may induce local charge polarization and delocalization, which could fundamentally improve the exciton dissociation and charge separation, thus achieving the promoted photocatalytic H2 evolution.
All-in-one HN@Cu-MOF nanoparticles with enhanced reactive oxygen species generation and GSH depletion for effective tumor treatment
Authors: Chen Shuhui , Yan Yu , Chen Yixuan , Wang Kaili , Zhang Yawen , Wang Xinlong , Li Xurui , Wen Jian , Yuan Yue
Published: November 2023

The multi-functional nanoparticle HN@Cu-MOF integrates PDT/CDT/GT, leading to a significant enhancement in GSH consumption and an elevation in ROS production, initiating the sensitization to PDT and cell apoptosis in the treatment of tumors.
Composition–structure–luminescence and enhancement of Cr3+ activated broadband near infrared phosphors for night vision, bio-imaging, and noninvasive detection
Authors: Li Gui-Hua , Huang Jun-Ben , Yang Qi-Hua , Wang Jin , Cai Ge-Mei , Wang Xiao-Jun
Published: November 2023

Cr3+–Yb3+ co-activated KScP2O7 phosphors are reported as one key component for all-inorganic broadband NIR pc-LEDs with potential applications in night vision, noninvasive imaging, and non-destructive detection.
Synthesis of millimeter-sized MoxW(1−x) S2ySe2(1−y)monolayer alloys with adjustable optical and electrical properties and their magnetic doping
Authors: Li You , Wang Yiwen , Hussain Sabir , Xie Liming , Qi Junjie
Published: November 2023

Based on a new liquid phase edge epitaxy (LPEE) method, we have grown millimeter-sized quaternary MoxW(1−x) S2ySe2(1−y) monolayer films and M-doped MoxW(1−x) S2ySe2(1−y) monolayers (M: Fe, Co, and Ni).
Correction: Compositional engineering solutions for decreasing trap state density and improving thermal stability in perovskite solar cells
Authors: Mbumba Manala Tabu , Malouangou Davy Maurice , Tsiba Jadel Matondo , Akram Muhammad Waleed , Bai Luyun , Yang Yifan , Guli Mina
Published: November 2023

Correction for ‘Compositional engineering solutions for decreasing trap state density and improving thermal stability in perovskite solar cells’ by Manala Tabu Mbumba et al., J. Mater. Chem. C, 2021, 9, 14047–14064, https://doi.org/10.1039/D1TC02315B.
The O-GlcNAc dichotomy: when does adaptation become pathological?
Authors: Costa Tiago J. , Wilson Emily W. , Fontes Milene T. , Pernomian Laena , Tostes Rita C. , Wenceslau Camilla F. , McCarthy Cameron G.
Published: November 2023

O-Linked attachment of β-N-acetylglucosamine (O-GlcNAc) on serine and threonine residues of nuclear, cytoplasmic, and mitochondrial proteins is a highly dynamic and ubiquitous post-translational modification that impacts the function, activity, subcellular localization, and stability of target proteins. Physiologically, acute O-GlcNAcylation serves primarily to modulate cellular signaling and transcription regulatory pathways in response to nutrients and stress. To date, thousands of proteins have been revealed to be O-GlcNAcylated and this number continues to grow as the technology for the detection of O-GlcNAc improves. The attachment of a single O-GlcNAc is catalyzed by the enzyme O-GlcNAc transferase (OGT), and their removal is catalyzed by O-GlcNAcase (OGA). O-GlcNAcylation is regulated by the metabolism of glucose via the hexosamine biosynthesis pathway, and the metabolic abnormalities associated with pathophysiological conditions are all associated with increased flux through this pathway and elevate O-GlcNAc levels. While chronic O-GlcNAcylation is well associated with cardiovascular dysfunction, only until recently, and with genetically modified animals, has O-GlcNAcylation as a contributing mechanism of cardiovascular disease emerged. This review will address and critically evaluate the current literature on the role of O-GlcNAcylation in vascular physiology, with a view that this pathway can offer novel targets for the treatment and prevention of cardiovascular diseases.
Dynamic Assessment of Narrative Skills for Identifying Developmental Language Disorder in Monolingual and Bilingual French-Speaking Children
Authors: Hadjadj Olivia , Kehoe Margaret , Delage Hélène
Published: November 2023

Purpose:

Typically developing (TD) bilingual children usually produce narratives with preserved macrostructure (i.e., narrative scheme) but with impaired microstructure (i.e., language complexity). As for monolingual and bilingual children with developmental language disorder (DLD), they usually produce narratives with both impaired macro- and microstructure. It is therefore difficult to differentiate TD from DLD, on the basis of narrative production, especially in bilingual children. In this study, we examine whether a dynamic assessment (DA) task of narratives, using a pretest–teaching–posttest design, can differentiate TD from DLD, without disadvantaging bilinguals over monolinguals.

Method:

We recruited 118 French-speaking children (Mage= 8;5 [years;months]), with one experimental condition in which children benefited from a teaching phase (30 TD, 18 monolinguals and 12 bilinguals; 30 DLD, 15 monolinguals and 15 bilinguals) and one control condition (58 TD, 31 monolinguals and 27 bilinguals), in which children participated in another activity. In the pre- and posttest, children were asked to tell a story based on a series of pictures. During the teaching phase, an examiner asked children 12 specific questions about the story, targeting macro- and microstructural elements. Scores were attributed to the number of macro- and microstructural elements correctly produced and to the number of specific trained elements (TE) that were produced as a result of training.

Results:

Scores improved on macrostructure and on the number of TE following teaching for all groups of the experimental condition (TD and DLD), whereas there was no progress in children of the control condition. TD participants and participants with DLD differed on all measures in both pre- and posttest, with no differences between monolinguals and bilinguals.

Conclusions:

Our dynamic task led to both improved narrative skills and TD/DLD differentiation, with bilinguals not being disadvantaged. Our study thus supports the existing literature indicating that DA can be used to diagnose narrative deficits in children with DLD.
Effect of electron beam irradiation on surface molecule and flashover voltage of epoxy composites
Authors: Li Mingru , Niu Huan , Shang Kai , Lang Jianyu , Gao Yafang , Li Bingnan , Zhao Jiuhui , Li Zhen , Feng Yang , Li Shengtao
Published: November 2023

The unsatisfactory insulating properties of solid–gas interfaces seriously restrict the development of high‐voltage electrical equipment and threaten their power supply stability. Electron‐beam irradiation (EBI) can effectively improve the surface flashover voltage of dielectrics. However, the underlying mechanism of EBI in tailoring the surface trap and improving the flashover voltage remains unclear. In this study, the surface morphologies and chemical compositions of epoxy composites treated with EBI were investigated. In addition, the surface wetting properties, surface charge migration parameters, and surface flashover voltages were experimentally characterised. It was found that EBI aggravated the surface morphology, changed the surface chemical components, and repressed surface charge transportation. As a result, the contact angle was reduced from 103.7° to 78.43°, and the flashover voltage in SF6 was increased from 35.26 to 38.90 kV. DFT calculations showed that the newly generated C–O–H and C=O bonds on the surface molecules after EBI formed charge centres at the molecular electrostatic potential, which enhanced the trapping effect of the surface deep trap. As a result, surface charge migration was repressed, and the surface flashover voltage was improved. This study could promote the further development of EBI on materials modification.
Photon counting technique as a potential tool in micro‐defect detection of epoxy insulation pull rod in gas‐insulated switchgears
Authors: Fan Xianhao , Niu Shu , Luo Hanhua , Liang Jizhong , Liu Fang , Li Wenqiang , Liu Weidong , Gao Wensheng , Huang Yulong , Li Chuanyang , He Jinliang
Published: November 2023

The micro‐defects in epoxy‐based insulation materials generate a local high electric field which results in continuous degradation, seriously endangering the insulation system of gas‐insulated switchgears. A highly sensitive detection technique is reported for micro‐defects of insulation pull rods based on the photon counting (PC) technique. The results demonstrated that for an epoxy‐based insulation pull rod, the photons released during electroluminescence and ionisation at 2 kV, which is less than the partial discharge inception voltage, can be clearly detected. The findings presented a strong correlation between photon counts and defect severity. Discourse has been conducted to elucidate the mechanism behind defect‐induced PC, employing the amplification of ionising luminescence through electric field distortion induced by micro defects and the augmentation of electroluminescence through the aggregation of trap charge. In this regard, the authors verified that PC can serve as a potential tool in the detection of micro‐insulation defects, which also has huge potential in online insulation condition monitoring.
Binary central stars of planetary nebulae in the Large Magellanic Cloud
Authors: Gładkowski M. , Hajduk M. , Smolec R. , Szczerba R. , Soszyński I.
Published: November 2023

Context. Close binary central stars of planetary nebulae (PNe) must have formed through a common envelope evolution during the giant phase experienced by one of the stars. Transfer of the angular momentum from the binary system to the envelope leads to the shortening of the binary separations from the radius of red giant to the radius of the order of few tenths of AU. Thus, close binary central stars of planetary nebulae are laboratories to study the common envelope phase of evolution. The close binary fraction in the Galaxy has been measured in various sky surveys, but the close binary fraction is not yet well constrained for the Magellanic Clouds, and our results may help the study of common envelope evolution in low-metallicity environments.

Aims. This paper presents a continuation of our study of variability in the Magellanic Cloud planetary nebulae on the basis of data from the OGLE survey. Previously, we had analysed the OGLE data in the Small Magellanic Cloud. Here, the study is extended to the Large Magellanic Cloud (LMC). In this paper we search for close binary central stars with the aim to constrain the binary fraction and period distribution in the LMC.

Methods. We identified 290 counterparts of PNe in the LMC in the I-band images from the OGLE-III and OGLE-IV surveys. However, the light curves of ten objects were not accessible in the OGLE database, and thus we analysed the time series photometry of 280 PNe.

Results. In total, 32 variables were found, but 5 of them turned out to be foreground objects. Another 18 objects show irregular or regular variability that is not attributable to the binarity of their central stars. Their status and the nature of their variability will be verified in the follow-up paper. Nine binary central stars of PNe with periods between 0.24 and 23.6 days were discovered. The obtained fraction for the LMC PNe is 3.3-1.6+2.6% without correcting for incompleteness. This number is significantly lower than the 12–21% derived in the analogous search in the Galactic bulge. We discuss this difference, taking into account observational biases. The lower binary fraction suggests a lower efficiency of the common envelope phase in producing close binaries in the LMC compared to the Galaxy.
Constraining the reflective properties of WASP-178 b using CHEOPS photometry
Authors: Pagano I. , Scandariato G. , Singh V. , Lendl M. , Queloz D. , Simon A. E. , Sousa S. G. , Brandeker A. , Cameron A. Collier , Sulis S. , Van Grootel V. , Wilson T. G. , Alibert Y. , Alonso R. , Anglada G. , Bárczy T. , Navascues D. Barrado , Barros S. C. C. , Baumjohann W. , Beck M. , Beck T. , Benz W. , Billot N. , Bonfils X. , Borsato L. , Broeg C. , Bruno G. , Carone L. , Charnoz S. , Corral van Damme C. , Csizmadia Sz. , Cubillos P. E. , Davies M. B. , Deleuil M. , Deline A. , Delrez L. , Demangeon O. D. S. , Demory B.-O. , Ehrenreich D. , Erikson A. , Fortier A. , Fossati L. , Fridlund M. , Gandolfi D. , Gillon M. , Güdel M. , Günther M. N. , Helling Ch. , Hoyer S. , Isaak K. G. , Kiss L. L. , Kopp E. , Lam K. W. F. , Laskar J. , Lecavelier des Etangs A. , Magrin D. , Maxted P. F. L. , Mordasini C. , Munari M. , Nascimbeni V. , Olofsson G. , Ottensamer R. , Pallé E. , Peter G. , Piotto G. , Pollacco D. , Ragazzoni R. , Rando N. , Rauer H. , Reimers C. , Ribas I. , Rieder M. , Santos N. C. , Ségransan D. , Smith A. M. S. , Stalport M. , Steller M. , Szabó Gy. M. , Thomas N. , Udry S. , Venturini J. , Walton N. A.
Published: November 2023

Context. Multiwavelength photometry of the secondary eclipses of extrasolar planets is able to disentangle the reflected and thermally emitted light radiated from the planetary dayside. Based on this, we can measure the planetary geometric albedo Ag, which is an indicator of the presence of clouds in the atmosphere, and the recirculation efficiency ϵ, which quantifies the energy transport within the atmosphere.

Aims. We measure Ag and ϵ for the planet WASP-178 b, a highly irradiated giant planet with an estimated equilibrium temperature of 2450 K.

Methods. We analyzed archival spectra and the light curves collected by CHEOPS and TESS to characterize the host WASP-178, refine the ephemeris of the system, and measure the eclipse depth in the passbands of the two telescopes.

Results. We measured a marginally significant eclipse depth of 70 ± 40 ppm in the TESS passband, and a statistically significant depth of 70 ± 20 ppm in the CHEOPS passband.

Conclusions. Combining the eclipse-depth measurement in the CHEOPS (λeff = 6300 Å) and TESS (λeff = 8000 Å) passbands, we constrained the dayside brightness temperature of WASP-178 b in the 2250–2800 K interval. The geometric albedo 0.1< Ag<0.35 generally supports the picture that giant planets are poorly reflective, while the recirculation efficiency ϵ >0.7 makes WASP-178 b an interesting laboratory for testing the current heat-recirculation models.
Geometric distortion and astrometric calibration of the JWST MIRI Medium Resolution Spectrometer
Authors: Patapis Polychronis , Argyriou Ioannis , Law David R. , Glauser Adrian M. , Glasse Alistair , Labiano Alvaro , Álvarez-Márquez Javier , Kavanagh Patrick J. , Gasman Danny , Mueller Michael , Larson Kirsten , Vandenbussche Bart , Lee David , Klaassen Pamela , Guillard Pierre , Wright Gillian S.
Published: November 2023

Context. The Medium Resolution integral field Spectrometer (MRS) of the Mid-Infrared Instrument (MIRI) on board the James Webb Space Telescope (JWST) performs spectroscopy between 5 and 28 µm, with a field of view varying from ~13 to ~56 sq. arcsec. The optics of the MRS introduce substantial distortion and this needs to be rectified in order to reconstruct the observed astrophysical scenario.

Aims. We aim to use data from the JWST/MIRI commissioning and cycle 1 calibration phase to derive the MRS geometric distortion and astrometric solution, a critical step in the calibration of MRS data. These solutions come in the form of transform matrices that map the detector pixels to spatial coordinates of a local MRS coordinate system called α/β, to the global JWST observatory coordinates V2 and V3 (V2+V3).

Methods. For every MRS spectral band and each slice dispersed on the detector, we fit the transform of detector pixels to α/β by a two-dimensional (2D) polynomial, using a raster of point source observations. The dispersed trace of the point source on the detector was initially estimated by fitting a one-dimensional (1D) empirical function and then iterating on the first distortion solution using forward modelling of the point spread function model based on the webbpsf python package. A polynomial transform was used to map the coordinates from α/β to V2+V3.

Results. We calibrated the distortion of all 198 discrete slices of the MIRI/MRS integral field units and derived an updated field of view (FoV) for each MRS spectral band. The precision of the distortion solution is estimated to be better than one-tenth of a spatial resolution element, with a root mean square (rms) of 10 milli-arc-second (mas) at 5 µm, to 23 mas at 27 µm. Finally, we found that the wheel positioning repeatability causes an additional astrometric rms error of 30 mas.

Conclusions. We demonstrate the application of the MRS astrometric calibration strategy and analysis for all four integral field units and all spectral bands of the MRS that enable the calibration of MRS spectra. This is a critical step in the data pipeline of every MRS observation. The distortion calibration was folded into the JWST pipeline in the Calibration Reference Data System (CRDS) context (jwst_1094.pmap), meeting the pre-launch requirement, with an estimated total astrometric uncertainty of 50 mas.
Stößt die Behandlung zu Hause auf
größere Zufriedenheit? Ergebnisse zur Zufriedenheit der an der
Behandlung beteiligten Personengruppen im Rahmen der multizentrischen
AKtiV-Studie
Authors: Längle Gerhard , Raschmann Svenja , Heinsch Anna , Großmann Tamara , Fischer Lasse , Timm Jürgen , Bechdolf Andreas , von Peter Sebastian , Weinmann Stefan , Nikolaidis Konstantinos , Brieger Peter , Hamann Johannes , Waldmann Tamara , Schwarz Julian , Rout Sandeep , Herwig Uwe , Richter Janina , Hirschmeier Constance , Baumgardt Johanna , Holzke Martin
Published: November 2023

Dieses Teilprojekt der AKtiV-Studie untersucht die Behandlungszufriedenheit von
Patient*innen und Angehörigen und deren Belastungserleben in
stationsäquivalenter und vollstationärer Behandlung.
Zusätzlich wird die Arbeitszufriedenheit und -belastung von StäB
Mitarbeitenden berücksichtigt. Relevante Parameter wurden über
etablierte sowie neu adaptierte Fragebögen am Behandlungsende erhoben.
Patient*innen und Angehörige in StäB sind signifikant
zufriedener. Das Belastungserleben der Angehörigen reduziert sich in
beiden Behandlungsformen. StäB Mitarbeitende sind allgemein sehr
zufrieden, wobei kein Zusammenhang mit der Zufriedenheit von Angehörigen
und Patient*innen besteht. In der Diskussion der Ergebnisse sind die
bekannten Limitationen von Zufriedenheitsbefragungen zu beachten. Dennoch
ermutigen die Ergebnisse dazu, diese für Deutschland neue
Behandlungsform weiterzuentwickeln und zu verbreiten.
Rauchfrei in der Psychiatrie – Eine qualitative Analyse der
Ansichten von Mitarbeiter:innen
Authors: Cerci Deniz , Vitzthum Karin
Published: November 2023

Hintergrund Menschen mit psychischer Erkrankung sind häufiger
nikotinabhängig und haben eine durch das Rauchen bedingte geringere
Lebenserwartung. Auch wenn Leitlinien eine Rauchentwöhnung empfehlen,
machen die Mitarbeiter:innen psychiatrischer Kliniken nur selten entsprechende
Angebote und sehen die Einführung einer rauchfreien Umgebung
häufig kritisch.

Methode In dieser Studie wurden die Freitextfelder einer Befragung der
Psychiatrie-Beschäftigten zum Thema Rauchen einer induktiven
thematischen Analyse unterzogen.

Ergebnisse Die häufig emotional formulierten Rückmeldungen
zum Thema bezogen sich auf die Bereiche Patient:innenversorgung, Personal und
Nichtraucher:innenschutz. Häufig wurde angeführt, dass ein
Rauchstopp die psychische Erkrankung der Patient:innen verschlechtern oder zu
aggressivem Verhalten führen könnte.

Schlussfolgerungen Für die genannten Bedenken gibt es keine
wissenschaftliche Evidenz. Es gilt, mit Schulungen des Personals den
Fehlannahmen entgegenzuwirken.
Behçet- und Cogan-Syndrom
Authors: Kötter Ina
Published: November 2023

Das Behçet- und das Cogan-Syndrom bilden zusammen die Gruppe der Vaskulitiden der variablen Gefäße nach der Chapel-Hill Nomenklatur. Sie können Arterien und Venen jeder Größe betreffen. Wie die Bezeichnung „Syndrom“ bei beiden Krankheitsbildern bereits widerspiegelt, können beide individuell sehr unterschiedliche Symptome bieten. Beide zählen formal zu den seltenen Erkrankungen, wobei das Cogan-Syndrom mit der Beschreibung von lediglich einigen hundert Fällen weltweit deutlich seltener als das Behςet-Syndrom ist. Für letzteres gibt es Diagnose- und Klassifikationskriterien, und auch europäische (EULAR, European Alliance of Associations for Rheumatology) Therapieempfehlungen. Symptomatologie, Diagnostik und Therapie, aber auch einige Überlegungen zur Pathogenese dieser beiden Vaskulitiden werden im Folgenden beleuchtet.
Zerebellärer Schwindel, was steckt dahinter?
Authors: Feil Katharina , Rattay Tim W. , Adeyemi Adedolapo Kamaldeen , Goldschagg Nicolina , Strupp Michael Leo
Published: November 2023

Schwindel und Gleichgewichtsstörungen umfassen ein multisensorisches und interdisziplinäres Syndrom unterschiedlicher Ätiologie und Pathogenese, wobei beim zerebellären Schwindel die Beschwerden durch die vestibulo-zerebellären, vestibulo-spinalen oder zerebellären Systeme verursacht werden. Der Begriff des zerebellären Schwindels umfasst eine heterogene Gruppe von Störungen mit klinischen Anzeichen einer Kleinhirnfunktionsstörung. Bei rund 10% der Patienten in einer Spezialambulanz für Schwindel und Gleichgewichtsstörungen ist der zerebelläre Schwindel ursächlich für die Vorstellung. Nach zeitlichem Verlauf können 3 Typen unterschieden werden: dauerhafte Beschwerden, wiederkehrende Episoden mit Schwindel und Gleichgewichtsstörungen und ein akutes Auftreten der Beschwerden. Die häufigsten Diagnosen waren: degenerative Erkrankungen; hereditäre Formen und erworbene Formen. 81 % der Patienten mit einem zerebellären Schwindel leiden an dauerhaften, persistierenden Schwindelbeschwerden, 31 % an Schwindelattacken und 21 % sowohl an dauerhaften Beschwerden als auch an Attacken, während typische klinische zerebelläre Zeichen, u. a. Gang- und Extremitätenataxien oder eine Dysarthrie seltener festgestellt wurden. Schlüssel zur Diagnose sind eine dezidierte, zielgerichtete Anamnese sowie eine gründliche klinische Untersuchung mit besonderem Augenmerk der Okulomotorik. Hinsichtlich der Untersuchung der Okulomotorik zeigten sich am häufigsten eine sakkadierte Blickfolge, ein Blickrichtungsnystagmus, Provokationsnystagmus, Reboundnystagmus, ein zentraler Fixationsnystagmus, am häufigsten der DBN (Downbeat Nystagmus) sowie Sakkadenstörungen und einer Divergenzinsuffizienz. Die Untersuchung der Okulomotorik ist somit sehr sensitiv, um die Diagnose zu unterstützen, jedoch nicht spezifisch in der Unterscheidung verschiedener Krankheitsätiologien. Apparative Untersuchungen mittels Posturografie und einer standardisierten Ganganalyse können die Diagnosestellung unterstützen und zur Abschätzung des Sturzrisikos sowie zur Quantifizierung des Verlaufs und möglicher symptomatischer Behandlungseffekte beitragen. Patienten mit zerebellärem Schwindel sollten eine multimodale Behandlung erhalten.
Photoinduced Ligand-to-Metal Charge Transfer in Base-Metal Catalysis
Authors: Rovis Tomislav , Treacy Sean M.
Published: November 2023

The absorption of light by photosensitizers has been shown to offer novel reactive pathways through electronic excited state intermediates, complementing ground-state mechanisms. Such strategies have been applied in both photocatalysis and photoredox catalysis, driven by generating reactive intermediates from their long-lived excited states. One developing area is photoinduced ligand-to-metal charge transfer (LMCT) catalysis, in which coordination of a ligand to a metal center and subsequent excitation with light results in the formation of a reactive radical and a reduced metal center. This mini review concerns the foundations and recent developments on ligand-to-metal charge transfer in transition-metal catalysis, focusing on the organic transformations made possible through this mechanism.

1 Introduction

2 Iron

3 Cobalt

4 Nickel

5 Copper

6 Future Outlook and Conclusion
Synthesis of New Structural Analogues of Natural Integrastatins with a Basic Epoxybenzo[7,8]oxocine Skeleton: Combined Experimental and Computational Study
Authors: Kulakov Ivan V. , Stalinskaya Alena L. , Chikunov Semyon Y. , Pustolaikina Irina A. , Gatilov Yuri V.
Published: November 2023

In this work, the cyclization reactivity of various 3-acetyl-2-methylpyridines (including 3-acetyl-2-methylquinoline) containing both electron donor and acceptor substituents with salicylaldehyde into epoxybenzooxocino[4,3-b]pyridine derivatives was studied. The reactions were carried out in mild (under room temperature or reflux in 2-propanol) and harsh (in a sealed glass ampoule) conditions. It was shown that 3-acetyl-2-methylpyridines with an aryl substituent in the 4-position do not react with salicylaldehyde either under normal convection heating conditions or under more severe conditions. This effect was explained by the steric hindrance of the substituents using quantum chemical calculations. It was found that electron donor substituents in 3-acetyl-2-methylpyridines significantly facilitate cyclization in epoxybenzooxocino[4,3-b]pyridines. The presence of electron acceptor substituents (NO2 group for example) in the 5-position of pyridine prevents cyclization under normal conditions, but gives a rather high conversion to oxocinopyridines under more specific conditions. This effect is quantum-chemically explained by the decrease in the basicity of pyridine. Pyridines with two pairs of methyl groups in ortho-positions to the acetyl group are capable to form mixtures of regioisomeric epoxybenzooxocinopyridines. Further, epoxybenzooxocinopyridines with methyl and acetyl groups can form a mixture of diastereomeric bisoxocins under more specific conditions. All 17 initial pyridines were studied quantum-chemically in order to understand what features of their structure and properties affect the success of the cyclization reaction and the yield of the target product. The pyridine molecules were calculated by the DFT RB3LYP/6-311++G(d,p) method taking into account the alcohol solvent within the CPCM model using Gaussian-2016 program. It was shown that the absence of steric hindrances in the form of bulky substituents in 4-position of pyridines is the main factor affecting the success of the cyclization reaction. Also, the yield of the target product is affected by the CH-acidity of the methyl group in 2-position, which, in turn, is affected by electron-donating and electron-withdrawing substituents in the 5- and 6-positions.
Cytokine Levels in Neonates: Unveiling the Impact of Perinatal Inflammation on Prematurity
Authors: Benincasa Bianca C. , Rieck Laura G.B. , Procianoy Renato S. , Silveira Rita C.
Published: November 2023

Objective This study aimed to investigate the association between variations in cytokine levels in the first 72 hours of life and prematurity.

Study Design In this prospective study, we examined the cytokine levels of 110 newborns in the first 72 hours of life. The participants were divided into two groups based on gestational age (66 very preterm and 44 term newborns), and cytokine levels (interleukin [IL]-6, IL-8, and IL-10, tumor necrosis factor-α [TNF-α], and transforming growth factor-β [TGF-β]) were evaluated.

Results Premature newborns exhibited higher levels of IL-6, IL-8, and IL-10, while TNF-α and TGF-β levels were lower comparing to term newborns. Even after adjusting for maternal and peripartum factors, the significant differences persisted.

Conclusion Our study underscores significant cytokine profile differences between full-term and very preterm newborns in early life. Elevated IL-6 and IL-8 levels in preterm infants suggest potential perinatal inflammation links to prematurity.

Key Points
Tempo-spatial construction in human-law-society triangle from the perspective of cognitive semiotics
Authors: Cheng Le , Xu Ming , Ma Guang
Published: November 2023

Time and space, habitually seen as the human psychological background, are increasingly being studied as the cognitive foreground for the development and evolution of matters. Via applying the corpus-based method based on the self-complied corpora of the US, the UK, the EU and Chinese data protection laws, this study examines the basic logic framework of time and space, including human psychological representation, semiotic essence, and function, seeking to present a holistic landscape of tempo-spatial construction in humanity, law and society from the perspective of cognitive semiotics. It finds that the human psychological representations in the tempo-spatial construction process contain cyclical time, linear time, place space and field space; the tempo-spatial essence is to express semiotic meanings through social dialogue and power negotiation among legal subjects in social contexts; and the tempo-spatial functions are manifested in mapping cognitive thinking mode of humanity and constructing law and society. It can be argued that legal discourse is the result of the tempo-spatial dialogue between legal subjects that depends on the interaction between society and its members and the overall evolution of its meaning interpretation; the tempo-spatial construction in human-law-society triangle is thus a typical intersemiotic operation. This study demonstrates the utility of sign of time and sign of space as a cognitive perspective in discourse construction and maps the strong interdependence between humanity, law and society.
Quantum neural networks for the discovery and implementation of quantum error-correcting codes
Authors: Chalkiadakis A. , Theocharakis M. , Barmparis G. D. , Tsironis G. P.
Published: November 2023

We implement and use quantum neural networks that exploit bit-flip quantum error-correcting codes that correct bit-flip errors in arbitrary logical qubit states. We introduce conjugate layer quantum autoencoders and use them in order to restore states impacted by amplitude damping through the utilization of an approximative four-qubit error-correcting codeword. Our specific implementation avoids barren plateaus of the cost function and improves the training time. Moreover, we propose a strategy that allows one to discover new encryption protocols tailored for specific quantum channels. This is exemplified by learning to generate logical qubits explicitly for the bit-flip channel. Our modified quantum neural networks consistently outperform the standard implementations across all tasks.
High speed and high reliability phase transition via constrained crystallization in ultrathin a-C/Sb2Te multilayer nanostructures
Authors: Zou Chentao , Wu Liangcai , Xu Peng , Liu Xiaolin , Sui Yanping , Xue Yuan , Song Zhitang , Song Sannian
Published: November 2023

Operation speed, data retention, thickness variation, and resistance drift are main shortages for conventional Ge2Sb2Te5 based phase change memory (PCM). In this Letter, we propose a type of ultrathin amorphous carbon (a-C)/Sb2Te multilayer nanostructures with semiconductor process compatibility, which has high speed and excellent reliability in terms of data retention (131 °C for 10-year), thickness variation (1.52%), and resistance drift (0.0095). The PCM devices based on [a-C (1 nm)/Sb2Te (7 nm)]5 multilayer nanostructures exhibit a fast operation speed of 5 ns. The SET/RESET resistance ratio remains constant over 105 cycles by more than two orders of magnitude. The excellent performance of a-C/Sb2Te multilayer nanostructures makes it a promising storage medium to expand the applications of PCM, such as automotive electronics.
On a doubly reduced model for dynamics of heterogeneous mixtures of stiffened gases, its regularizations and their implementations
Authors: Zlotnik A. , Lomonosov T.
Published: November 2023

We deal with the reduced four-equation model for the dynamics of heterogeneous compressible binary mixtures with the stiffened gas equations of state. We study its further reduced form, with the excluded volume concentrations, and with a quadratic equation for the common pressure of the components; this form can be called a quasi-homogeneous form. We prove new properties of the equation, derive simple formulas for the squared speed of sound, and present an alternative proof for a formula that relates it to the squared Wood speed of sound; also, a short derivation of the pressure balance equation is given. For the first time, we introduce regularizations of the heterogeneous model (in the quasi-homogeneous form). Previously, regularizations of such types were developed only for the homogeneous mixtures of perfect polytropic gases, and it was unclear how to cover the case considered here. In the 1D case, based on these regularizations, we construct new explicit two-level in time and symmetric three-point in space finite-difference schemes without limiters and provide numerical results for various flows with shock waves.