bluuebunny/crossref_metadata_2025_split huggingface dataset:
Leichte Deckenelemente aus Carbonbeton
Authors: Vakaliuk Iurii , Scheerer Silke , Curbach Manfred 
Published: September 2024

AbstractIn biegebeanspruchten Betonbauteilen wird ein großer Anteil des verbauten Materials unzureichend ausgenutzt. Mehr Materialeffizienz kann bspw. durch die strukturelle Auflösung des normalerweise massiven Bauteilinneren erreicht werden. Im vorgestellten Projekt wird dies durch lasttragende filigrane Carbonbetonquerschnitte realisiert. Im Beitrag werden zuerst die Methode des Herstellens solch filigraner Strukturen mittels Gießen bei Unterdruck vorgestellt und die in Standardtests erzielten Materialeigenschaften diskutiert. Anschließend werden das Design von zwei 1,8 m × 1,8 m großen Platten und deren Tragverhalten im 9‐Punkt‐Biegeversuch beschrieben und mit numerischen Simulationen verglichen. Zum Schluss wird ein Ausblick auf die zukünftige Forschung gegeben.
Inetetamab combined with sirolimus and chemotherapy for the treatment of HER2‐positive metastatic breast cancer patients with abnormal activation of the PI3K/Akt/mTOR pathway after trastuzumab treatment
Authors: Li Qiao , Lv Dan , Sun Xiaoying , Wang Mengyuan , Cai Li , Liu Feng , Li Chenghui , Zhao Jiuda , Sun Jing , Shi Yehui , Ma Fei 
Published: September 2024

AbstractBackgroundWe explored the efficacy and safety of inetetamab combined with sirolimus and chemotherapy for the treatment of human epidermal factor receptor 2 (HER2)‐positive metastatic breast cancer patients with abnormal activation of the PI3K/Akt/mTOR (PAM) pathway after trastuzumab treatment.MethodsFor this prospective multicenter clinical study, HER2‐positive metastatic breast cancer patients with PAM pathway mutations confirmed by histology or peripheral blood genetic testing were enrolled from July 2021 to September 2022. Patients were randomly assigned to a trial or control group. The patients in the trial group received inetetamab combined with sirolimus and chemotherapy, while the control group patients received pyrotinib and chemotherapy. The RECIST v1.1 standard was used to evaluate efficacy. Descriptive statistics were used to summarize the clinicopathological features, and the Kaplan–Meier method was used to generate survival curves. The log‐rank test was used to compare progression‐free survival (PFS) between the two groups.ResultsA total of 59 HER2‐positive metastatic breast cancer patients with abnormal activation of the PAM pathway were included, of which 37 received inetetamab combined with sirolimus and chemotherapy treatment and 22 received pyrotinib and chemotherapy treatment. The median PFS was 4.64 months in the inetetamab group and 5.69 months in the pyrotinib group, with no statistically significant difference (p = 0.507). The objective response rates were 27.3% for the inetetamab group and 29.4% for the pyrotinib group. The safety assessment indicated that the adverse event (AE) incidences were 86.1% (31/36) in the inetetamab group and 78.9 (15/19) in the pyrotinib group, with 9 (25%) and four (21.1%) Grade 3/4 AEs in the inetetamab and pyrotinib groups, respectively.ConclusionsFor metastatic HER2‐positive breast cancer patients with abnormal PAM pathway activation and previous trastuzumab treatment, the combination of inetetamab with sirolimus and chemotherapy is equivalent to the combination of pyrotinib and chemotherapy. Therefore, this regimen could be a treatment option for PAM pathway‐activated metastatic HER2‐positive breast cancer patients.
What do clients think about amplifying positivity? Client change perspectives following a cognitive and behavioural positive activity intervention for anxiety and depression
Authors: Satchwell Margaret K. , Hoffman Samantha N. , Rassaby Madeleine M. , Bowers Thomas J. , Taylor Charles T. 
Published: September 2024

AbstractBackgroundThe positive valence system (PVS) is increasingly recognised as an important target in facilitating recovery from anxiety and depression. Amplification of positivity (AMP), a cognitive and behavioural intervention, targets the PVS through repeated and intentional activities (e.g. savouring positive experiences, gratitude and acts of kindness). Initial data demonstrate that AMP engages positive valence targets (e.g. positive affect) and outcomes (e.g. social connectedness) in people seeking treatment for anxiety or depression; however, client perspectives on AMP are not well understood. This study aimed to qualitatively explore clients' experiences to better understand post‐treatment client changes and advance the development and effectiveness of AMP and other emerging positive valence‐focussed interventions.MethodsTranscripts were analysed from 11 participants who completed an optional qualitative interview after completing AMP treatment in a randomised controlled trial (NCT04945239).ResultsTwo superordinate themes with several subthemes emerged. The first theme, Changes in Self, revealed common changes consistent with the core targets of AMP, as well as changes less explicitly targeted by AMP. The second theme, The Positivity Pivot, uncovered clients' perceptions on the emphasis of positive emotions in treatment. Overall, clients enjoyed and reaped benefits from amplifying positivity; some clients also reported wanting more time and space to discuss negative valence symptoms.ConclusionPeople seeking treatment for anxiety or depression are receptive to amplifying positivity and experience the mental and social benefits of doing so. Positive valence‐centred treatments may therefore be valuable for some clients. Treatment protocols that integrate positive valence‐ and negative valence‐targeted approaches may be preferred by some clients.
New Insights into the Antibacterial Activity of Hydroxytyrosol Extracted from Olive Leaves: Molecular Docking Simulations of its Antibacterial Mechanisms
Authors: Ben Hassena Amal , Abidi Jihen , Miled Nabil , Kulinowski Łukasz , Skalicka‐Woźniak Krystyna , Bouaziz Mohamed 
Published: September 2024

AbstractThis study investigated the biological activities of a hydroxytyrosol‐rich extract from Olea europaea leaves, particularly its ability to eradicate severe pathogenic bacteria producing Extended‐Spectrum Beta‐Lactamases (ESBLs). The latter bacteria are emerging microorganisms that pose significant challenges due to their resistance to a broad range of potent therapeutic drugs.The extract was prepared through an accessible acid hydrolysis method. In vitro and In silico analyses through MIC, MBC analysis and molecular docking were conducted to evaluate the antibacterial properties.The extract showed remarkable antioxidant activity and significant antibacterial potential against reference species and ESBL bacteria. MIC and MBC calculations confirmed the extract's capacity to kill bacteria rather than just inhibit their growth. Further in silico analyzes demonstrated the high binding affinity of HT to the active sites of the gyrase B subunit and the peptidoglycan DD‐transpeptidase domain from proteins located in the cytoplasm and the cell wall of the bacteria, respectively. Results confirmed the structure‐activity relationship and the ability of HT to disrupt essential bacterial functions.This study validates the debated antimicrobial potential of HT and highlights its importance as a potential therapeutic agent against resistant bacteria, which is a critical area of research given the global challenge of antibiotic resistance.
A New 19(10→9)Abeo‐Euphane Triterpenoid with other Terpenoid Components from Trichilia dregeana Leaves and their NO Production Inhibitory Activities in LPS‐Stimulated RAW264.7 Macrophages
Authors: Mba Nguekeu Yves M. , Kodama Takeshi , Paing Htoo Zin , Matheuda Elodie Gaële , Tsepeupon Matchide Marie G. , Augustin Ngouela Silvère , Tene Mathieu , Ducret Awouafack Maurice , Morita Hiroyuki 
Published: September 2024

AbstractTrichilia dregeana Sond. (Meliaceae) is a plant used in traditional medicine to treat wounds. The anti‐inflammatory potential of the ethyl acetate leaf extract and the presence of euphane‐type triterpenes in this extract have recently been reported by our group. Further investigation of the remaining subfractions of the ethyl acetate fraction afforded a new 19(10→9)abeo‐euphane‐type triterpenoid (1), along with six known terpenoids (2–7). The structure of the new compound was elucidated by analyses of the HR‐ESI‐MS, 1D and 2D NMR data and by comparison with previously reported data. We investigated the ability of the compounds to modulate the production of nitric oxide (NO) in LPS‐stimulated RAW264.7 macrophages. The known compounds 3 and 6 exhibited moderate (IC50 72.06 μM) and mild (IC50 98.84 μM) inhibitory activities, respectively, without cytotoxic effects on the cells. These results, in conjunction with our previous findings, emphasize the significant role of terpenoid components in the anti‐inflammatory efficacy of T. dregeana leaves and indicate that the rare 3,10‐epoxy‐19(10→9)abeo‐euphane triterpenoids could serve as a chemotaxonomic marker for T. dregeana.
A High‐Throughput Visual Screen for the Directed Evolution of Cβ‐stereoselectivity of L‐threonine Aldolase
Authors: Zhao You‐Xue , Li Hai‐Peng , Cheng Li‐Hang , Li Chun‐Xiu , Pan Jiang , Xu Jian‐He 
Published: September 2024

AbstractL‐Threonine aldolase (L‐TA) is a pyridoxal phosphate‐dependent enzyme that catalyzes the reversible condensation of glycine and aldehydes to form β‐hydroxy‐α‐amino acids. The combination of directed evolution and efficient high‐throughput screening methods is an effective strategy for enhancing the enzyme's catalytic performance. However, few feasible high‐throughput methods exist for engineering the Cβ‐stereoselectivity of L‐TAs. Here, we present a novel method of screening for variants with improved Cβ‐stereoselectivity; this method couples an L‐threo‐phenylserine dehydrogenase, which catalyzes the specific oxidation of L‐threo‐4‐methylsulfonylphenylserine (L‐threo‐MTPS), with the concurrent synthesis of NADPH, which is easily detectable via 340‐nm UV absorption. This enables the visual detection of L‐threo‐MTPS produced by L‐TA through the measurement of generated NADPH. Using this method, we discover an L‐TA variant with significantly higher diastereoselectivity, increasing from 0.98 % de (for the wild‐type) to 71.9 % de.
Desaturation after Fontan procedure due to systemic venous collateral and improvement after closure with embolization
Authors: Tsoutsinos Alexandros , Kakava Felicia , Kanakis Meletios , Samanidis George , Despotopoulos Stefanos , Vagenakis George , Apostolopoulou Sotiria , Papagiannis John , Rammos Spyridon 
Published: September 2024

Key Clinical MessageSystemic to pulmonary venous collaterals (SPVCs) are common findings in patients with Fontan and may be responsible for desaturation in this group of patients. In selected cases, percutaneous closure of SPVCs with coils or vascular plugs could be offered as a safe and effective treatment modality for these patients.AbstractA 27‐year‐old female patient who had operated primarily with Glenn operation and she underwent later a lateral tunnel Fontan operation. After 5 years, she presented with desaturation due to significant systemic to pulmonary venous collateral development, and a decision was made to proceed with interventional occlusion. Afterward, the arterial saturations increased.
Unraveling the Role of the Nitrate Ion and Solvent Water on the O─O Bond Formation Step in Fe─TAML Catalyzed Water Oxidation
Authors: Li Ying‐Ying , Eisses Aaron , Meijer Evert Jan , Chen Si‐Xiang , Liao Rong‐Zhen 
Published: September 2024

AbstractDensity functional theory‐based molecular dynamics (DFT‐MD) combined with an explicit solvation model were employed to further elucidate the O─O bond formation step in Fe─TAML catalyzed water oxidation reaction. The water nucleophilic attack (WNA) and nitrate nucleophilic attack (NNA) on the oxo group of the high‐valent [TAML+•─Fe5+═O] species were calculated to have comparable active barriers (24 kcal/mol versus 22 kcal/mol). This suggests nitrate ion can behave as a cocatalyst to promote the O─O bond formation. More importantly, a crucial role of the presence and thermal motion of solvent water in the NNA process was observed. This was quantified by an increase of the activation energy barrier by 4 kcal/mol, determined by comparing the explicit solvent DFT‐MD simulation with implicit solvent static DFT calculation.
Two Optimization Approaches for a Small‐Scale Power‐to‐Ammonia Cycle
Authors: Koschwitz Pascal , Roß Leon , Epple Bernd 
Published: September 2024

AbstractAmmonia is a promising carbon‐free energy vector. Small‐scale renewable power‐to‐ammonia (P2A) is particularly suited for isolated agricultural areas where ammonia can be used as fuel and fertilizer. This work compares two approaches to simulate and optimize the steady‐state behavior of a novel small‐scale P2A process: Aspen Plus® and MOSAIC®. Aspen Plus® is a commercial flow sheeting software whereas MOSAIC® is a freeware where equations and thermochemical properties need to be specified by hand. It can be shown that the results of MOSAIC® and Aspen Plus® are qualitatively comparable, but not identical. This suggests that the model in MOSAIC® can be improved further, starting with the implementation of a more accurate numeric reactor kinetics and equation of state.
Epitaxially Growing 2D RGB Trichromatic Cocrystal Nanomeshes to Trigger Cross‐Modulation White Light Emission
Authors: Luo Wenyubin , Zhang Cheng , Yang Shan , Ding Lei , Li Yang , Sun Yanqiu , Zhang Qichun 
Published: September 2024

Comprehensive SummaryConsidering their oriented crystalline structure and high luminescent efficiency, the exploration of multi‐component organic cocrystal systems with tunable supramolecular nanostructures and potential RGB light emission has emerged as a captivating but challenging subject. Here, we propose a straightforward synthetic strategy to precisely govern the assembly, structure and structure‐property relationship of organic cocrystals. By employing the single‐crystalline template‐assisted epitaxial growth (SCT‐EG) method, the two‐dimensional (2D) highly‐aligned cocrystal nanomeshes are firstly developed to afford an exceptional RGB trichromatic system, triggering cross‐modulation white light emission (WLE) with remarkable stability and regeneration capacity over six months. The transformation from random 1D microstructures to uniformly‐oriented 2D nanomeshes can be attributed to the regulatory competitive intermolecular π‐π, CT interactions, and partial H bond interactions among cocrystals. Moreover, the successful construction of 2D RGB trichromatic cocrystal nanomeshes system holds promise to generate full‐color display, which can function as multicolor inks for photonic dynamic recognition, information encryption, and decryption.
Crystallographic and Selectivity Studies on the Approved HIF Prolyl Hydroxylase Inhibitors Desidustat and Enarodustat
Authors: Corner Thomas P. , Salah Eidarus , Tumber Anthony , Kaur Samanpreet , Nakashima Yu , Allen Mark D. , Schnaubelt Lara I. , Fiorini Giorgia , Brewitz Lennart , Schofield Christopher J. 
Published: September 2024

AbstractProlyl hydroxylase domain‐containing proteins 1–3 (PHD1–3) are 2‐oxoglutarate (2OG)‐dependent oxygenases catalysing C‐4 hydroxylation of prolyl residues in α‐subunits of the heterodimeric transcription factor hypoxia‐inducible factor (HIF), modifications that promote HIF‐α degradation via the ubiquitin‐proteasome pathway. Pharmacological inhibition of the PHDs induces HIF‐α stabilisation, so promoting HIF target gene transcription. PHD inhibitors are used to treat anaemia caused by chronic kidney disease (CKD) due to their ability to stimulate erythropoietin (EPO) production. We report studies on the effects of the approved PHD inhibitors Desidustat and Enarodustat, and the clinical candidate TP0463518, on activities of a representative set of isolated recombinant human 2OG oxygenases. The three molecules manifest selectivity for PHD inhibition over that of the other 2OG oxygenases evaluated. We obtained crystal structures of Desidustat and Enarodustat in complex with the human 2OG oxygenase factor inhibiting hypoxia‐inducible factor‐α (FIH), which, together with modelling studies, inform on the binding modes of Desidustat and Enarodustat to active site Fe(II) in 2OG oxygenases, including PHD1–3. The results will help in the design of selective inhibitors of both the PHDs and other 2OG oxygenases, which are of medicinal interest due to their involvement inter alia in metabolic regulation, epigenetic signalling, DNA‐damage repair, and agrochemical resistance.
Combination of immune checkpoint inhibitors and radiotherapy in locally advanced esophagogastric junction adenocarcinoma: A review
Authors: Abyaneh Romina , Ghalehtaki Reza , Sanford Nina N. 
Published: September 2024

AbstractEsophagogastric adenocarcinoma (EGJ‐AC) poses a significant global health burden, characterized by high incidence rates and poor prognosis. Despite advancements in treatment modalities, including surgery, chemotherapy, and radiation therapy (RT), locally advanced EGJ‐AC management remains challenging. Various preclinical and clinical studies have provided insights into the synergistic effects of combining immune checkpoint inhibitors (ICIs) with RT, further supporting the combination therapy in EGJ‐AC. Immunotherapy, particularly ICIs, has emerged as a promising therapeutic approach in various malignancies, including EGJ‐AC. This narrative review aims to critically examine the rationale behind combining ICIs with standard treatment modalities, including RT or chemoradiotherapy, in the preoperative setting for locally advanced EGJ‐AC. A comprehensive literature search identified eight phase 2 randomized clinical trials evaluating the safety profile and oncologic outcomes of adding ICI agents to neoadjuvant chemoradiotherapy in this population. The results of enrolled trials show that the combination of ICIs with standard treatment modalities is a promising approach for improving survival and pathological response in patients with locally advanced EGJ‐AC. This combination treatment was associated with mostly grade 1–2 immune‐related toxicities, indicating its safety and tolerability. There were higher rates of complete or major pathologic responses compared to historical controls. Further studies, including large‐scale randomized controlled trials, are needed to address remaining questions regarding the efficacy, safety, and long‐term outcomes of combination therapy in this population.
Theoretical Prediction of Enhanced Hydrogen Evolution Reaction Electrocatalysts Based on Tantalum Phosphide
Authors: Sun Jun‐Chao , Wang Yong 
Published: September 2024

AbstractTa‐based transition metal catalysts have shown significant catalytic activity for the hydrogen evolution reaction (HER) in recent studies. However, the application of tantalum phosphide (TaP) in the HER has not been documented. Herein, a systematic study of TaP catalysts was performed through density functional theory (DFT). The performance of TaP (004) for the HER was predicted. Thermodynamic analyses of Ta‐terminated and P‐terminated surfaces with adsorbed hydrogen atoms were conducted, and the HER mechanism on TaP (004) surfaces was carefully investigated. Theoretical results revealed that TaP (004) exhibits excellent HER activity (ΔGH*=0.0456 eV), and both the Ta‐terminated and P‐terminated surfaces follow the Volmer‐Heyrovsky mechanism under acidic conditions, with the Volmer step being the rate‐determining step. A mixed surface strategy was also applied to explore the synergistic effects of Ta‐terminated and P‐terminated surfaces, which enhanced the HER activity. Additionally, the study screened dopants to assess their impact on the HER activity, revealing that doping with S, Ni, Co, Fe, and Cr could improve the HER performance.
An Innovative Biphasic Reaction System for Highly Selective Benzene Hydroxylation based on Photocatalytic Polymer Composites
Authors: Mancuso Antonietta , Picca Rosaria Anna , Izzi Margherita , Di Franco Cinzia , Sacco Olga , Vaiano Vincenzo , Venditto Vincenzo 
Published: September 2024

AbstractThe hydroxylation of benzene to phenol in presence of hydrogen peroxide was performed using a new biphasic system consisting of a solid phase, a photocatalytically active monolithic polymer composite, immersed in an aqueous phase in which H2O2 is dissolved. In detail, ZnO photocatalytic particles were embedded into the hydrophobic syndiotactic polystyrene (sPS) polymer. Zinc oxide nanostructures (ZnO NSs) were synthesized by an electrochemical procedure. The surface morphology and structure of ZnO nanoparticles and ZnO‐sPS monolithic aerogel composite (ZnO/sPS) were investigated by scanning electron microscopy, X‐ray diffraction and X‐ray photoelectron spectroscopy analysis. Photocatalytic results evidenced that, under UV irradiation, both ZnO NSs and biphasic system water‐photocatalytic composites had a high benzene oxidative property but with very low phenol yield (<2 %) at pH=7. To enhance the phenol selective formation, the pH of the aqueous solution surrounding the photocatalytic polymer composite was modified. A phenol yield of about 94 % and benzene conversion higher than 99 % was obtained in alkaline conditions (pH=11).
An Energy‐Efficient Fully On‐Chip CMOS Temperature Sensor for Portable Applications With an RFoM of 2.79 pJ.K2
Authors: Jayaram Chilaka , Sreehari Patri 
Published: September 2024

ABSTRACTThis article describes an energy‐efficient, low‐power CMOS temperature sensor suitable for portable applications. The sensor's front‐end circuitry is designed with a reference voltage (V), complementary to absolute temperature (CTAT) voltage (V), and ramp voltage generators. The ramp voltage (V) is produced by utilizing a current reference circuit. The ramp voltage is compared with independent and temperature‐dependent voltages to perform the voltage‐to‐frequency conversion. Conversion from frequency to digital output is achieved through an asynchronous counter with an on‐chip oscillator. The proposed design is realized in a 0.18‐m CMOS technology and attains a power usage of 604.4 nW at 27°C with an operating voltage of 0.5 V. Furthermore, it obtains an inaccuracy of +0.71/−0.73°C over −40°C to 125°C temperature range with an active area of 0.025 mm2. Moreover, the designed sensor circuit offers a resolution of 0.17°C with an energy conversion of 96.7 pJ.
On EMEC Instability in Bi‐Kappa Distributed Space Plasmas Under the Influence of Parallel DC Electric Field
Authors: Nazeer M. 
Published: September 2024

ABSTRACTEMEC waves driven by kinetic anisotropies and suprathermal particles are expected to play an important role at dissipative scales in the solar wind and planetary magnetospheres. Moreover, the correlation of EMEC waves with electric field magnitude and direction can be a tool to probe the inner magnetosphere. Thus, in this manuscript, we present the study of EMEC waves driven by temperature anisotropy in bi‐Kappa distributed space plasmas in the presence of a parallel DC electric field. The dispersion equation bearing the influence of electric field and suprathermal particles followed by the analytical expressions for wave frequency and wave growth rate is derived. The general dispersion equation is solved numerically to unveil the effect of suprathermal particles, temperature anisotropy, and the magnitude of the electric field on growth rate as well as the domain of unstable wave numbers, and the obtained numerical outcomes are compared with those of the bi‐Maxwellian model. Moreover, the maximum growth rates for EMEC waves have also been obtained.