bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploiting Photoinduced Atom Transfer Radical Polymerizations with Boron‐Dopant and Nitrogen‐Defect Synergy in Carbon Nitride Nanosheets
Authors: Peng He Yu , Xu Meng Kai , Li Xue , Cai Tao 
Published: June 2024

AbstractGraphitic carbon nitrides (g‐C3N4) possess various benefits as heterogeneous photocatalysts, including tunable bandgaps, scalability, and chemical robustness. However, their efficacy and ongoing advancement are hindered by challenges like limited charge‐carrier separation rates, insufficient driving force for photocatalysis, small specific surface area, and inadequate absorption of visible light. In this study, boron dopants and nitrogen defects synergy are introduced into bulk g‐C3N4 through the calcination of a blend of nitrogen‐defective g‐C3N4 and NaBH4 under inert conditions, resulting in the formation of BCN nanosheets characterized by abundant porosity and increased specific surface area. These BCN nanosheets promote intermolecular single electron transfer to the radical initiator, maintaining radical intermediates at a low concentration for better control of photoinduced atom transfer radical polymerization (photo‐ATRP). Consequently, this method yields polymers with low dispersity and tailorable molecular weights under mild blue light illumination, outperforming previous reports on bulk g‐C3N4. The heterogeneity of BCN enables easy separation and efficient reuse in subsequent polymerization processes. This study effectively showcases a simple method to alter the electronic and band structures of g‐C3N4 with simultaneously introducing dopants and defects, leading to high‐performance photo‐ATRP and providing valuable insights for designing efficient photocatalytic systems for solar energy harvesting.
Social short video platform assisted care for adverse psychological symptoms in cancer patients: A mixed‐methods study
Authors: Li Shen , Liu Xia , Wang Xia , Wang Yilin , Ma Xuelei 
Published: June 2024

AbstractThe rising psychological issues among cancer patients call for timely treatment. Psychological issues such as anxiety, depression, and distress are particularly common among cancer patients and have a significant impact on their treatment and prognostic outcomes. Distraction has been proven to mitigate mental disorders as a strategy of intervention. Digital tools like social short video platforms offer cost‐effective mental healthcare potential, but there is a lack of longitudinal studies demonstrating their intervention effectiveness. This study aimed to assess the impact of social short video platforms on the psychological well‐being of cancer patients, focusing on anxiety, depression, and distress. We studied 455 digestive system cancer patients using mixed methods. The effect on psychological symptoms was evaluated via cross‐sectional analysis of 392 patients and pre‐post intervention analysis of 63 patients, employing the Hospital Anxiety and Depression Scale and Distress Thermometer. The findings showed lower anxiety, depression, and distress scores among regular users of social short video platforms. The intervention led to reduced anxiety and depression scores. As a prevalent app of social short video platforms, these platforms might be a safe and convenient nonpharmacological assisted tool for enhancing mental health care during cancer treatment.
Clinical leadership in nursing homes: A qualitative study of healthcare professionals' perspectives on concept and characteristics
Authors: Nachtergaele Sabrina , De Roo Nele , Allart Jolien , De Vriendt Patricia , Embo Mieke , Cornelis Elise 
Published: June 2024

AbstractAim(s)To conceptualise and identify characteristics of clinical leadership in the nursing home setting.DesignA qualitative study using semi‐structured focus group interviews and a thematic analysis.MethodsFive semi‐structured focus group interviews were conducted with 41 healthcare professionals from nursing and other healthcare disciplines working in nursing homes (such as nurse assistants, licensed practical nurses, registered nurses (RNs), occupational therapists, recreational therapists, psychologists and gerontologists). Qualitative thematic content analysis of the gathered data was done.ResultsClinical leaders in nursing homes can be defined as passionate healthcare professionals providing person‐centred care with strong communication skills. They are clinical experts in their field and motivated to engage in lifelong learning. They are team players with informal leadership skills. They are visionary, committed, resilient and responsive. Awareness of the definition and the main characteristics of clinical leadership is necessary to facilitate the identification, support and development of healthcare professionals. Focussing on the development of competencies, training courses and monitoring and assessment methods is necessary to improve the evidence of clinical leadership in nursing homes.
High‐performance PPS/PEEK blend and its composites with milled carbon fiber: Study on their mechanical, thermal and dielectric properties
Authors: Tiwari Shilpi , Bag Dibyendu S. , Mishra Preeti , Lal Gobardhan , Dwivedi Mayank 
Published: June 2024

AbstractThe high‐performance PPS/PEEK blends/composites were prepared with different mass ratios using polyphenylene sulphide (Solvey, Ryton®‐R‐4‐230 NA) and polyetherether ketone (Victrex, PEEK450 GL 30). All the blend samples had a single Tg, which revealed good compatibility between PPS and PEEK. The Tm was increased from 279.6 to 339.9°C due to addition of PEEK into PPS. Also, addition of PEEK into the blend increased the impact and tensile strength of the PPS material. The impact strength of the blend, PPS/PEEK (20/80) exhibited the maximum value of 113.64 J/m which was higher than that of PPS (70.66 J/m). The tensile strength of the blend was increased continuously with increasing the content of PEEK from 20 to 80 wt. % and reached the maximum value of 160.64 MPa. Additionally, milled carbon fiber (MCF) was also incorporated in order to obtain high strength PPS/PEEK blends/composites with good dielectric property. The dielectric performance of the composites was observed to increase with MCF content (in the frequency range 5.8 to 18 GHz).Highlights
This investigation relates to high‐performance PPS/PEEK blends and composites.
Incorporation of milled carbon fiber resulted promising dielectric properties.
Such composites may have Advanced structural EMI shielding electronics and/or aerospace applications.
Filme von Licht im Elektronenmikroskop
Authors: Nabben David , Kuttruff Joel , Baum Peter 
Published: June 2024

ZusammenfassungMit der Attosekunden‐Elektronenmikroskopie können optische Antworten und elektronische Reaktionsmechanismen in komplexen Materialien direkt in Raum und Zeit gefilmt werden. Wir erreichen dabei simultan eine räumliche Auflösung im Bereich einzelner Nanometer sowie eine Zeitauflösung im Attosekunden‐Bereich, schneller als die Oszillationen von Licht. Die Leistungsfähigkeit dieser Methode demonstrieren wir an einigen nanophotonischen Metamaterialien. Sie ist darüber hinaus zum Beispiel in der Katalysatorforschung oder der Entwicklung neuer elektronischer Schaltkreise anwendbar.
Synthesis of Anisotropic Gold Microparticles via L‐Glutathione‐Mediated Pathways in Droplet Microfluidics
Authors: Yang Zhenxu , Yin Qiankun , He Mengfan , Chong Shin‐Wei , Xu Zhejun , Liu Xiaochen , Vega‐Sánchez Christopher , Jaiswal Arun , Vigolo Daniele , Yong Ken‐Tye 
Published: June 2024

AbstractMicrofluidic‐assisted synthesis of nanoparticles has generated significant interest for its precise control and high throughput capabilities. Among various nanomaterials, gold nanoparticles (AuNPs) have shown remarkable potential in numerous applications, such as disease detection, photothermotherapy, drug delivery, and even defense applications. Recent synthesis strategy of peptide‐mediated method has sparked greater interest by offering unique chiroptical properties and their applications in biomedical applications. In this study, the use of droplet microfluidics is explored for the synthesis of peptide‐mediated AuNPs, aiming to accelerate automated production via flow chemistry. This method leads to the formation of anisotropic gold particles, with sizes ranging from hundreds of nanometers to the micron scale. The interfacial energy is identified at the water/oil interface as a critical factor influencing this outcome, with L‐glutathione (L‐GSH) playing a significant role in the development of hyper‐branched structures. These results demonstrate the capability of droplet microfluidics in producing anisotropic gold particles at micron scales, presenting new possibilities for the advancement of nanoparticle synthesis techniques.
Multifunctional Coupling System of Topological Edge Waveguide and Corner State Cavity Based on Honeycomb Photonic Crystals
Authors: Gao Yong‐Feng , He Yue , Rouzi Subinuer , Fang Yi‐Jun , He Yi‐Han , Yang Ming , Hou Qi‐Chao 
Published: June 2024

AbstractRecently, the topological edge waveguide and corner state cavity have attracted the extensive attention of researchers due to their excellent characteristics with robustness to defects and localization to cavity in manipulating signal transmission, respectively. Herein, topologically trivial and nontrivial photonic crystals (PCs) are realized by shrinking and expanding the honeycomb lattice, and achieve gapped and continuous edge states in the constructed topological edge waveguides with zig‐zag and armchair interfaces by combining two kinds of PCs with different topologies, respectively. In addition, corner states are realized by constructing box‐shaped structure with zig‐zag interfaces, and verify that the corner states appearing around the obtuse‐angle corners are topologically protected to introduced defects in the structure. Moreover, a waveguide‐cavity coupling system based on an armchair waveguide and a rhomboid cavity is proposed, which can realize multifunction of the signal delay and filtering at specific frequencies. Furthermore, a coupling system consisting of two waveguide and a cavity is constructed to implement beam splitting and filtering, and the stability of the system is greatly improved compared with the traditional optical devices because of the topological property. This work presents a novel approach for the design of micro‐nano integrated photonic devices such as filters, storages, and splitters.
A resource‐based view of entrepreneurial spin‐outs
Authors: Mella‐Barral Pierre 
Published: June 2024

AbstractWe examine a rationale for entrepreneurial spin‐outs, when employing firms are not protected from expropriation by their employees, built on the resource‐based view of the firm. We consider a repeated innovations setting and develop the dynamics of the entrepreneurial spin‐out decision. The implications for the gradual development of a sector of activity are in line with existing empirical findings.
Effect of single versus grouped culture of human cumulus–oocyte complexes in PCOS women treated with biphasic in vitro maturation: A sibling oocyte pilot study
Authors: Pham Huy H. , Le Anh H. , Nguyen Tri C. , Ma Mai P. Q. , Akin Nazli , Pham Toan D. , Nguyen Minh H. N. , Le Ho L. , Huynh Bao G. , Smitz Johan , Ho Tuong M. , Vuong Lan N. 
Published: June 2024

AbstractPurposeThis study investigated the differences in the maturation rate of single versus grouped cumulus–oocyte complexes (COCs) culture methods for capacitation in vitro maturation (CAPA‐IVM) in women with polycystic ovary syndrome (PCOS).MethodsThis study was performed at My Duc Phu Nhuan Hospital, Vietnam from October 1, 2020 to October 24, 2021. Women aged 18–37 years with a diagnosis of PCOS were recruited. COCs from each woman were randomly divided into two groups: single or grouped culture during CAPA‐IVM culture. The primary outcome was the maturation rate.ResultsA total of 322 COCs from 15 eligible women included were randomly assigned to the two study groups. The maturation rate was comparable between the single and grouped culture groups (61.3% vs. 64.8%; p = 0.56). There were no significant differences in the number of 2‐pronuclei fertilized oocytes, number of day‐3 embryos, and number of good‐quality embryos in the two culture method groups. In the single culture group, COCs morphology was associated with the day‐3 embryo formation rate but not the maturation rate.ConclusionsComparable oocyte maturation and embryology outcomes between single and grouped COCs culture utilizing sibling COCs derived from women with PCOS suggest the feasibility of both methods for CAPA‐IVM culture.
Co and Ni Ratio Modulation‐Derived Electron Deficient Pd Trimetallic Catalysts for Enhanced Formic Acid Electrooxidation
Authors: Li Xiao , Jiang Hui , Zhu Yuejin , Hu Shuozhen , Zhang Xinsheng 
Published: June 2024

AbstractPdCoNi trimetallic catalysts attracted extensive interest in direct formic acid fuel cells due to high poisoning resistance and high activity for formic acid electro‐oxidation (FAO). Herein, a series of Pd0.75CoxNiy/C alloys with a modulated ratio of Co and Ni are synthesized to investigate the effect of Co and Ni content on the electronic structure of Pd for FAO. The physical analysis demonstrated that the introduction of Co and Ni induces the lattice strain effect compared to monometallic Pd catalysts. As a consequence of fixing the total amount of Co and Ni, the strain effect is restricted, and the electronic perturbation of Pd is successfully regulated by varying the ratio of Co and Ni in Pd0.75CoxNiy/C trimetallic alloys. Pd loses more electrons, the bond strength of Pd−H is weakened, and FAO activity is enhanced first and then decreased as the Co content increases. Among the trimetallic catalysts, Pd0.75Co0.125Ni0.125/C trimetallic catalyst exhibits the highest current density of 3.253 mA cm−2 owing to the optimum electronic perturbation and Pd−H bond strength. This work provides a valuable guideline for future studies of Pd‐based trimetallic alloys.
Sodium Octahydridotriborate as a Solid Electrolyte with Excellent Stability Against Sodium‐Metal Anode
Authors: Chen Xin‐Wei , Kang Jia‐Xin , Fan Zi‐Heng , Zhang Na , Zhang Wan‐Yu , Zhang Guo‐Guo , Zhu An‐Qi , Lu Zhi‐Wei , Qiu Pengtao , Wu Yiying , Chen Xuenian 
Published: June 2024

AbstractSolid‐state sodium metal batteries have been extensively investigated because of their potential to improve safety, cost‐effectiveness, and energy density. The development of such batteries urgently required a solid‐state electrolyte with fast Na‐ion conduction and favorable interfacial compatibility. Herein, the progress on developing the NaB3H8 solid‐state electrolytes is reported, which show a liquid‐like ionic conductivity of 0.05 S cm−1 at 56 °C with an activation energy of 0.35 eV after an order‐disorder phase transformation, matching or surpassing the best single‐anion hydridoborate conductors investigated up to now. The steady polarization voltage and significantly decreased resistance are achieved in the symmetric Na/NaB3H8/Na cell, indicating the great electrochemical stability and favorable interfacial contact with the Na metal of NaB3H8. Furthermore, a Na/NaB3H8/TiS2 battery, the first high‐rate (up to 1 C) solid‐state sodium metal battery using the single‐anion hydridoborate electrolyte, is demonstrated, which exhibits superior rate capability (168.2 mAh g−1 at 0.1 C and 141.2 mAh g−1 at 1 C) and long‐term cycling stability (70.9% capacity retention at 1 C after 300 cycles) at 30 °C. This work may present a new possibility to solve the interfacial limitations and find a new group of solid‐state electrolytes for high‐performance sodium metal batteries.
Additive Manufacturing of Grid Reservoir‐Integrated Anodes for Dendrite‐Free, Safe, and Ultra‐Low Voltage Zinc‐Ion Batteries
Authors: Idrees Muhammad , Batool Saima , Hu Weizhao , Chen Deliang 
Published: June 2024

AbstractThis work reports a novel 3D printed grid reservoir‐integrated mesoporous carbon coordinated silicon oxycarbide hybrid composite (3DP‐MPC‐SiOC) to establish the zincophile interphase for controlling the dendrite formation. The customized 3D printed grid patterned structure inhibits Zn dendrite growth and achieves long‐term stability with reduced voltage polarization due to homogeneous electric field distribution. The hybrid composite consisting of SiOC interpenetrated within carbon constructs a high zinc nucleation interphase, hence promoting uniform Zn2+ deposition and enhancing ionic diffusion with dendrite‐free growth and a reduced nucleation energy barrier. As a result, the 3DP‐MPC‐SiOC@Zn symmetrical cell affords a highly reversible Zn plating/stripping and dendrite‐free structure over 198 h with an ultra‐low voltage polarization. These inspiring performances endow the 3DP anode with a 3DP‐VO cathode as a full battery, which shows a retention capacity of 78.8 mAh g−1 (Coulombic efficiency: 94.04%) at 0.1 A g−1 and a large energy density of 41 Wh kg−1 at a power density of 1.2 W kg−1 (based on the total mass of electrode) after 120 cycles. This newly developed 3D printing of hybrid composite as an electrode is straightforward and scalable and provides a novel concept for realizing dendrite‐free and stable rechargeable Zn‐ion batteries.
Enhancing Performance and Stability of Perovskite Solar Cells with a Novel Formamidine Group Additive
Authors: Zhang Jing , She Yutong , Zhu Yujie , Su Hang , Zheng Xinxin , Yao Yuyin , Li Deng , Liu Shengzhong (Frank) 
Published: June 2024

AbstractPerovskite materials, particularly FAPbI3, have emerged as promising candidates for solar energy conversion applications. However, these materials are plagued by well‐known defects and suboptimal film quality. Enhancing crystallinity and minimizing defect density are therefore essential steps in the development of high‐performance perovskite solar cells. In this study, 1H‐Pyrazole‐1‐carboximidamide hydrochloride (PCH) is introduced into FAPbI3 perovskite films. The molecular structure of PCH features a pyrazole ring bonded to formamidine (FA). The FA moiety of PCH facilitated the incorporation of this additive into the film lattice, while the negatively charged pyrazole ring effectively passivated positively charged iodine vacancies. The presence of PCH led to the fabrication of an FAPbI3 device with improved crystallinity, a smoother surface, and reduced defect density, resulting in enhanced Voc and fill factor. A record power conversion efficiency of 24.62% is achieved, along with exceptional stability under prolonged air exposure and thermal stress. The findings highlight the efficacy of PCH as a novel additive for the development of high‐performance perovskite solar cells.
Pd@CuInP2S6 Core–Shell Nanospheres with Exceptional Hydrogen Evolution Capability and Stability in Both Alkaline and Acidic Media under Large Current Density Exceeding 1000 mA cm−2
Authors: Fu Guoshuai , Xie Kangfan , Yan Bo , Yu Peng , Tan Xin , Liu Pu , Yang Guowei 
Published: June 2024

AbstractBy combining Pd with 2D layered crystal CuInP2S6 (CIPS) via laser irradiation in liquids, low‐loading Pd@CIPS core–shell nanospheres are fabricated as an efficient and robust electrocatalysts for HER in both alkaline and acidic media under large current density (⩾1000 mA cm−2). Pd@CIPS core–shell nanosphere has two structural features, i) the out‐shell is the nanocomposite of PdHx and PdInHx, and ii) there is a kind of dendritic structure on the surface of nanospheres, while the dendritic structure porvides good gas desorption pathway and cause the Pd@CIPS system to maintain higher HER activity and stability than that of commercial Pt/C under large current densities. Pd@CIPS exhibits very low overpotentials of −218 and −313 mV for the large current density of 1000 mA cm−2, and has a small Tafel slope of 29 and 63 mV dec−1 in 0.5 m H2SO4 and 1 m KOH condition, respectively. Meanwhile, Pd@CIPS has an excellent stability under −10 and −500 mA cm−2 current densities and 50 000 cycles cyclic voltammetry tests in 0.5 m H2SO4 and 1 m KOH, respectively, which being much superior to that of commercial Pt/C. Density functional theory (DFT) reveals that engineering electronic structure of PdHx and PdInHx nanostructure can strongly weaken the Pd─H bonding.
Privacy‐preserving security monitoring data sharing of new power system based on batch verification ring signature
Authors: Wang Yi , Yang Hao , Zhang Yiming , Zhao Yitao , Yin Shaoyang 
Published: June 2024

AbstractTo meet the increasing electricity demand and achieve the goals of “carbon peaking” and “carbon neutrality”, it is urgent to develop a new power system with new energy as the main body and large‐scale integration of power intelligent electronic devices. However, the large‐scale access to intelligent devices will bring new network security issues. In response to network security threats, a power grid network security situational awareness system is established to assess the security situation of the power grid and strengthen the network security. Cloud data sharing enables security monitoring data to flow faster and be fully used to facilitate security situational research and judgment. Nevertheless, in reality, issues such as privacy leakage, data tampering, and unauthorized access hinder the application of cloud data sharing. To solve the above problems, we propose a new secure sharing scheme for power system security monitoring data based on batch verification ring signature. In this scheme, we design a batch verification ring signature algorithm to guarantee users' anonymity and promote the efficiency of data sharing. Then, we formally prove that our scheme achieves three security features: anonymity, confidentiality, and unforgeability. Finally, experimental simulations show that our scheme's computational cost is less than half that of other schemes, which also has lower communication overhead.
Stereological and behavioural analysis reveals the better neuroprotective effect of cinnamaldehyde than berberine chloride in a rat model of global cerebral ischemia
Authors: Mehboodi Dariush , Shahedi Abbas , Namavar Mohammadreza , Zakizadeh Fatemeh , Teymoori Arezoo 
Published: June 2024

AbstractBackgroundGlobal cerebral ischemia (GCI) is characterized by the hindrance of blood flow to the brain due to obstruction in the carotid arteries. In this study, the neuroprotective effects of berberine chloride (BBR) and cinnamaldehyde (CA) against GCI in male Wistar rats were investigated, and their efficacy was compared.MethodsTwenty‐four rats were randomly assigned to four groups: Sham, GCI, GCI + BBR, and GCI + CA. 100 mg/kg of BBR and CA were administered five minutes and six hours after inducing GCI by occluding two common carotids for 20 minutes.ResultsThe findings showed that both compounds mitigated GCI‐induced damage to the hippocampus and its subfields, and CA demonstrated better neuroprotective efficacy than BBR. These results was also supported by behavioural tests, which revealed better memory function in GCI + CA compared to GCI + BBR.ConclusionThe study showed the neuroprotective impact of CA and BBR against GCI, and CA emerged as a more effective therapeutic agent against GCI‐induced damage. Further research is necessary to uncover the specific mechanisms behind these differences.
Strongly Kreiss bounded operators in UMD Banach spaces
Authors: Deng Chenxi , Lorist Emiel , Veraar Mark 
Published: June 2024

AbstractIn this paper we give growth estimates for $$\Vert T^n\Vert $$

‖

T
n

‖

for $$n\rightarrow \infty $$

n
→
∞

in the case T is a strongly Kreiss bounded operator on a $${{\,\textrm{UMD}\,}}$$

UMD

Banach space X. In several special cases we provide explicit growth rates. This includes known cases such as Hilbert and $$L^p$$

L
p

-spaces, but also intermediate $${{\,\textrm{UMD}\,}}$$

UMD

spaces such as non-commutative $$L^p$$

L
p

-spaces and variable Lebesgue spaces.