bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effects of Lock-down 2020 on the Behaviour and Mood of Children Aged Three to Six in Italy
Authors: Sacchi Domiziana , Pasini Augusto , Muti Marco , Roverselli Carla , Spiridigliozzi Simonetta 
Published: June 2023

The aim of this research was to trace an association between the lock-down caused by the Covid-19 pandemic in Itlay (March-May 2020) and possible short- and long-term behavioral and mood changes in 1,000 children aged three to six years. With the data collected through the administration of two questionnaires, an account of the psychoattitudinal performance of the subjects examined during the aforementioned period was obtained. The results showed that during the lock-down nearly 60% of the sample exhibited negative feelings; 11.2% of the sample also exhibited symptoms attributable to situational depression. With the return to normalcy, the percentage of negative feelings recorded in the sample decreased to 11%; a significant association was also found between the mood state and temperament of the subjects. Behavioral changes such as increased onychophagy and eating changes during lock-down were recorded, which can be associated with stress. It was possible to reveal problems in the long term, such as difficulty in modulating anxiety, controlling aggression, and social adjustment.
Toxicity Assessment of Produced Water Using Nitrosomonas sp.
Authors: Tudararo-Aherobo L. E. , Egieya A. J. 
Published: June 2023

Aim: Most studies on the effect of produced water are centred on the effects on the physicochemical parameters of the recipient environment, but not much has been conducted on biogeochemical processes such as the nitrogen cycle. This study aims to determine the median lethal concentration (LC50) of the produced water that would cause mortality of 50% of the exposed population of Nitrosomonas sp. (test organism) which is involved in the ammonification step of the Nitrogen cycle.
Study Design: For the purpose of this study, acute toxicity testing was done for 48 hours to determine the effect of the untreated and treated produced wastewater on the test organism. The LC50 is the median lethal concentration that would cause mortality of 50% of the exposed population of the test organisms.
Methodology: Toxicity effects of treated and untreated produced wastewater were determined following standard procedures against the test organism (Nitrosomonas sp). The resultant output of the probit analysis was generated from the SPSS statistical programme.
Results: Results showed that the mean LC50 for the untreated produced wastewater at the 48-hour test period of bioassay was 3.27mg/L, while the mean LC50 for the treated wastewater was found to be 6.69mg/L. The mean percentage mortality of Nitrosomonas sp. for the untreated produced waster water ranged from 37%(0.01mg/l) to 90%(100mg/l), while for the treated, percentage mortality ranged from 27%(0.01mg/l) to 84%(100mg/l) at the end of the 48 hour test duration.
Conclusion: Toxicity of treated and untreated wastewater against Nitrosomonas sp increased with time and decreased considerably with treatment, corresponding to positive correlation as observed statistically between toxicants with respect to concentration and time of exposure for untreated and treated wastewater against Nitrosomonas sp. These results indicate a likey inteference of the nitrogen cycle by contamination of untreated produced water in the environment and by extension impairment of the productivity of the environment.
Machine Learning Approach for House Price Prediction
Authors: Chowhaan M. Jagan , Nitish D. , Akash G. , Sreevidya Nelli , Shaik Subhani 
Published: June 2023

In our ecosystem, real estate is clearly a distinct industry. Predicting house prices, significant housing characteristics, and many other things is made a lot easier by the capacity to extract data from raw data and extract essential information. Daily fluctuations in housing costs are still present, and they occasionally rise without regard to calculations. According to research, changes in property prices frequently have an impact on both homeowners and the real estate market.
To analyze the key elements and the best predictive models for home prices, literature research is conducted. The analyses' findings supported the usage of artificial neural networks, support vector regression, and linear regression as the most effective modeling techniques. Our results also imply that real estate agents and geography play important roles in determining property prices. Finding the most crucial factors affecting housing prices and identifying the best machine learning model to utilize for this research would both be greatly aided by this study, especially for housing developers and researchers.
Spatially Confined Silver Nanoparticles in Mercapto Metal–Organic Frameworks to Compartmentalize Li Deposition Toward Anode‐Free Lithium Metal Batteries
Authors: Li Xinjian , Su Yanhui , Qin Yongze , Huang Fangding , Mei Shiwei , He Ying , Peng ChengYuan , Ding Leyu , Zhang Yanzhi , Peng Yang , Deng Zhao 
Published: June 2023

AbstractAs the promising next‐generation energy storage solution, lithium metal battery (LMB) has gained great attention but still suffers from troubles associated with the highly active metallic lithium. Herein, it is aimed to develop an anode‐free LMB engaging no Li disk or foil by modifying the Cu current collector with mercapto metal–organic frameworks (MOFs) impregnating Ag nanoparticles (NPs). While the polar mercapto groups facilitate and guide Li+ transport, the highly lithiophilic Ag NPs help to enhance the electric conductivity and lower the energy barrier of Li nucleation. Furthermore, the MOF pores allow compartmentalizing bulk Li into a 3D matrix Li storage so that not only the local current density is reduced, but also is the plating/stripping reversibility greatly enhanced. As a result, full cells pairing the prelithiated Ag@Zr‐DMBD/Cu anodes with LiFePO4 cathodes demonstrate a high initial specific capacity of 159.8 mAh g−1, first‐cycle Coulombic efficiency of 96.6%, and long‐term cycling stability over 1000 cycles with 99.3% capacity retention at 1 C. This study underlines the multi‐aspect functionalization of MOFs to impart lithiophilicity, polarity, and porosity to achieve reversible Li plating/stripping and paves the way for realizing high‐performance anode‐free LMBs through exquisite modification of the Cu current collector.
Circularly Polarized Luminescence Switching, Chirality Self‐Sorting, and Cell Imaging of Chiral Rhodamine Dyes
Authors: Qu Lang , Zhou Xueman , Song Jintong , Zhang Bao , Yang Qingping , Zhou Xiangge , Liu Jin , Xiang Haifeng 
Published: June 2023

AbstractRhodamine dyes, as star molecules of fluorescent dyes, are critical tools in modern analytical and biochemical research. However, switching their chiroptical properties still remains a big challenge because of the absence of a suitable synthesis method to incorporate through conjugation a chiral fragment into the chromophore core of rhodamine. Herein, a simple and straightforward way is utilized to link two rhodamine chromophores by different chiral bridges. The conjugated RRR/SSS birhodamine dyes with one axial chirality, which is constructed directly by two rhodamine chromophores, and two spirocyclic chiralities show the interesting circular dichroism and circularly polarized luminescence switching and lysosome‐targetable properties. On the other hand, the unconjugated RR/SS birhodamine dyes with two chiral carbons do not have such chiroptical switching properties but do have different amazing cellular staining properties. The RR birhodamine dye can stain both lysosomes and mitochondria, but SS birhodamine dye can stain lysosomes only. Moreover, the mechanisms of chiroptical switching and diastereoselectivity are investigated as well, based on single‐crystal structures and density functional theory calculations. Therefore, a new platform is afforded here in designing chiral dyes for chiroptical switching and cell imaging applications.
Light‐promoted Selective Reduction of Nitroarenes to Azoxy‐, Azo‐ and Hydrazo‐compounds Catalyzed by Bismuth Porphyrin Metal Organic Framework
Authors: Zhang Yuqiang , Yang Wenqing , Wang Sheng , Shua Haojun , Li Xiaoxuan , Fan Shilu , Feng Yisi 
Published: June 2023

AbstractWe report a photocatalytic strategy for selective reduction of nitroarenes to azoxy‐, azo‐ and hydrazo‐compounds catalyzed by bismuth porphyrin metal organic framework (Bi‐MOF) through controlling time, atmosphere, or the quantity of NaBH4 under mild conditions (Rt, Light). The photocatalytic protocol exhibited excellent functional group compatibility, and the recyclability of Bi‐MOF was demonstrated by five cycle tests. More importantly, the scale‐up experiment of 10 g can also be carried out smoothly with excellent yield of 95%. This green and effective photocatalytic strategy provides a practical possibility for the large‐scale synthesis of azo intermediates.
Organocatalytic α‐Aminoalkylation of Azomethine Imines by α‐Silylamines under Blue LED Light
Authors: Li Jiacheng , Carli Lorenzo , Kyne Sara Helen , Chan Philip Wai Hong 
Published: June 2023

AbstractA synthetic method to prepare 1,2‐diamines efficiently that relies on the 4CzPN‐catalysed α‐aminoalkylation of azomethine imines by secondary and tertiary α‐silylamines under blue light emitting diode (LED) light (456 nm) is described. Achieved under metal‐ and additive‐free reaction conditions at room temperature, the synthetic protocol was shown to afford product yields up to 99% and applicable to the late‐stage functionalisation of three drug molecules and the gramme‐scale preparation of one example.
Materials Quest for Advanced Interconnect Metallization in Integrated Circuits
Authors: Moon Jun Hwan , Jeong Eunjin , Kim Seunghyun , Kim Taesoon , Oh Eunsoo , Lee Keun , Han Hauk , Kim Young Keun 
Published: June 2023

AbstractIntegrated circuits (ICs) are challenged to deliver historically anticipated performance improvements while increasing the cost and complexity of the technology with each generation. Front‐end‐of‐line (FEOL) processes have provided various solutions to this predicament, whereas the back‐end‐of‐line (BEOL) processes have taken a step back. With continuous IC scaling, the speed of the entire chip has reached a point where its performance is determined by the performance of the interconnect that bridges billions of transistors and other devices. Consequently, the demand for advanced interconnect metallization rises again, and various aspects must be considered. This review explores the quest for new materials for successfully routing nanoscale interconnects. The challenges in the interconnect structures as physical dimensions shrink are first explored. Then, various problem‐solving options are considered based on the properties of materials. New materials are also introduced for barriers, such as 2D materials, self‐assembled molecular layers, high‐entropy alloys, and conductors, such as Co and Ru, intermetallic compounds, and MAX phases. The comprehensive discussion of each material includes state‐of‐the‐art studies ranging from the characteristics of materials by theoretical calculation to process applications to the current interconnect structures. This review intends to provide a materials‐based implementation strategy to bridge the gap between academia and industry.
Extracellular Matrix/Glycopeptide Hybrid Hydrogel as an Immunomodulatory Niche for Endogenous Cardiac Repair after Myocardial Infarction
Authors: Kong Pengxu , Dong Jing , Li Wenchao , Li Zefu , Gao Rui , Liu Xiang , Wang Jingrong , Su Qi , Wen Bin , Ouyang Wenbin , Wang Shouzheng , Zhang Fengwen , Feng Shuyi , Zhuang Donglin , Xie Yongquan , Zhao Guangzhi , Yi Hang , Feng Zujian , Wang Weiwei , Pan Xiangbin 
Published: June 2023

AbstractThe treatment of myocardial infarction (MI) remains a substantial challenge due to excessive inflammation, massive cell death, and restricted regenerative potential, leading to maladaptive healing process and eventually heart failure. Current strategies of regulating inflammation or improving cardiac tissue regeneration have limited success. Herein, a hybrid hydrogel coassembled by acellular cardiac extracellular matrix (ECM) and immunomodulatory glycopeptide is developed for endogenous tissue regeneration after MI. The hydrogel constructs a niche recapitulating the architecture of native ECM for attracting host cell homing, controlling macrophage differentiation via glycopeptide unit, and promoting endotheliocyte proliferation by enhancing the macrophage‐endotheliocyte crosstalk, which coordinate the innate healing mechanism for cardiac tissue regeneration. In a rodent MI model, the hybrid hydrogel successfully orchestrates a proreparative response indicated by enhanced M2 macrophage polarization, increased angiogenesis, and improved cardiomyocyte survival, which alleviates infarct size, improves wall thicknesses, and enhances cardiac contractility. Furthermore, the safety and effectiveness of the hydrogel are demonstrated in a porcine MI model, wherein proteomics verifies the regulation of immune response, proangiogenesis, and accelerated healing process. Collectively, the injectable composite hydrogel serving as an immunomodulatory niche for promoting cell homing and proliferation, inflammation modulation, tissue remodeling, and function restoration provides an effective strategy for endogenous cardiac repair.
All‐Fabric Direct‐Current Triboelectric Nanogenerators Based on the Tribovoltaic Effect as Power Textiles
Authors: Lv Tianmei , Cheng Renwei , Wei Chuanhui , Su Erming , Jiang Tao , Sheng Feifan , Peng Xiao , Dong Kai , Wang Zhong Lin 
Published: June 2023

AbstractThe tribovoltaic effect is the direct‐current (DC) output that results from sliding a p‐type semiconductor on top of an n‐type semiconductor, and it is caused by the electron–hole pairs generated However, the rigid structure of traditional semiconductor limits its potential application in wearable fields. Here, p–type and n–type fabric with semiconductor properties are prepared by doping small organic molecules of cetyltrimethylammonium bromide and sodium dodecylbenzene sulfonate on the carbon atoms of single–wall carbon nanotubes (SWCNTs), and three all‐fabric direct‐current triboelectric nanogenerators based on the tribovoltaic effect (AFDC‐TENG) are developed , which exhibit high flexibility, satisfactory comfort, and stable DC output. In addition, the effects of structural parameters and environmental factors on the electrical output of AFDC‐TENG are systematically discussed. The output voltage, current, and power density of p‐type AFDC‐TENG can reach 0.2 V, 0.29 µA, and 45.5 mV m−2 at a maximum speed of 0.2 m s−1 and a sliding frequency of 1 Hz, respectively. This work proposes a simple and scalable design form for all‐fabric DC power supply devices, which has potential applications in the future micro/nano energy or self‐powered flexible sensors.
Ir‐Catalyzed Enantioselective Synthesis of gem‐Diborylalkenes Enabled by 1,2‐Boron Shift
Authors: Ge Jian‐Fei , Zou Xi‐Zhang , Liu Xin‐Ru , Ji Chong‐Lei , Zhu Xin‐Yuan , Gao De‐Wei 
Published: June 2023

AbstractAsymmetric cross‐couplings based on 1,2‐carbon migration from B‐ate complexes have been developed efficiently to access valuable organoboronates. However, enantioselective reactions triggered by 1,2‐boron shift have remained to be unaddressed synthetic challenge. Here, Ir‐catalyzed asymmetric allylic alkylation enabled by 1,2‐boron shift was developed. In this reaction, we disclosed that excellent enantioselectivities were achieved through an interesting dynamic kinetic resolution (DKR) process of allylic carbonates at the elevated temperature. Notably, the highly valuable (bis‐boryl)alkenes have enabled an array of diversifications to access versatile molecules. Extensive experimental and computational studies were conducted to elucidate the reaction mechanism of DKR process and clarify the origin of excellent enantioselectivities.
Consecutive Single‐Crystal‐to‐Single‐Crystal Isomerization of Novel Octamolybdate Anions within a Microporous Hybrid Framework with Robust Water Sorption Properties
Authors: Ruiz‐Bilbao Estibaliz , Iturrospe Amaia , Reinoso Santiago , Artetxe Beñat , Beobide Garikoitz , San Felices Leire , Lezama Luis , Gutiérrez‐Zorrilla Juan M. , Darwish Shaza , Sensharma Debobroto , Zaworotko Michael J. 
Published: June 2023

AbstractThe 3D hybrid framework [{Cu(cyclam)}3(κ‐Mo8O27)] ⋅ 14H2O (1) (cyclam=1,4,8,11‐tetraazacyclotetradecane) undergoes sequential single‐crystal‐to‐single‐crystal transformations upon heating to afford two different anhydrous phases (2 a and 3 a). These transitions modify the framework dimensionality and enable the isomerization of κ‐octamolybdate (κ‐Mo8) anions into λ (2 a) and μ (3 a) forms through metal migration. Hydration of 3 a involves condensation of one water molecule to the cluster to afford the γ‐Mo8 isomer in 4, which dehydrates back into 3 a through the 6 a intermediate. In contrast, 2 a reversibly hydrates to form 5, exhibiting the same Mo8 cluster as that of 1. It is remarkable that three of the Mo8 clusters (κ, λ and μ) are new and that up to three different microporous phases can be isolated from 1 (2 a, 3 a, and 6 a). Water vapor sorption analyses show high recyclability and the highest uptake values for POM‐based systems. The isotherms display an abrupt step at low humidity level desirable for humidity control devices or water harvesting in drylands.
Excellent hemostatic control during cardiac surgery in a patient with hemophilia B treated with albutrepenonacog alfa (rIX‐FP): A case report
Authors: López‐Jaime Francisco José , Fernández‐Bello Ihosvany , Calavia‐Aranda Eva , Reina‐Monsó Begoña , Montaño Adrián 
Published: June 2023

Key Clinical MessageIn hemophilia patients undergoing cardiac surgery, ROTEM® and Quantra® viscoelastic tests are useful to monitor perioperative hemostatic status and a single dose of rIX‐FP is safe and avoids any hemorrhagic or thrombotic complication.AbstractCardiac surgery poses a high hemostatic risk in patients with hemophilia. We present the first case of an adult patient with hemophilia B on treatment with albutrepenonacog alfa (rIX‐FP) who underwent surgery for acute coronary syndrome. Treatment with rIX‐FP made it possible to perform the surgery safely.
Fe‐Ni2P@NPC Synthesized by Trametes Orientalis as an Efficient Electrocatalyst for the Oxygen Evolution Reaction
Authors: Tang Jia , Lei Xueqian , Wu Shuyue , Zhong Xiaohui , Deng Hong , Lin Zhang 
Published: June 2023

AbstractDeveloping non‐noble metal catalysts for the oxygen evolution reaction (OER) is one of the main challenges in the production of hydrogen energy by water splitting reaction. Herein, taking advantage of the fact that microorganisms have high element contents and metabolic activities, we used them to recycle Ni and Fe from electroplating sludge. Based on the above, we designed a highly efficient oxygen evolution catalyst (Fe‐Ni2P@NPC) through the in situ synthesis of Fe‐doped Ni2P nanoparticles and N, P dual‐doped carbon materials coupled together. The material exhibited excellent catalytic activity, with a low overpotential of 282 mV at the current density of 10 mA cm−2 along with a fast reaction kinetics, with a small Tafel slope of 57.1 mV dec−1. This outstanding OER performance is mainly attributed to the in situ doping of Fe in Ni2P nanoparticles, resulting in a strong synergistic effect between them. Besides, the strong coupling interaction between Fe‐Ni2P and Fe‐NiOOH formed during the OER can adjust the electron distribution and optimize the adsorption capacity of the intermediates. This work provides a reference for the recycling of valuable Ni and Fe metals from electroplating sludge, as well as new insight into the preparation of low‐cost and high‐performance OER catalysts.
Silver Catalysts Supported on High Surface Area α‐Alumina: Effect of Carbohydrate Template Size and Heat Treatment on Phase Purity
Authors: Keijzer Claudia J. , Dalebout Remco , de Rijk Jan Willem , Lockemeyer John R. , Lohr Tracy L. , van den Brink Peter , de Jongh Petra E. 
Published: June 2023

Abstractα‐Alumina is a non‐porous metal oxide with applications in ceramics and catalysis. Introducing pores into this material to create catalytically relevant surface area is challenging due to phase transitions over a wide temperature range. Current synthesis strategies involve hard templates such as synthetic polymers, e. g. polymethylmethacrylate (PMMA). Here, we compare cellulose and carbonized glucose as low‐cost and natural alternative templates for high surface area α‐alumina with a two‐step heating method. Quantitative XRD was used to methodically investigate alumina phase purity. Increasing the template size in the range of 220–1000 nm improved α‐alumina purity from 75 to 98 %, while maintaining high surface areas (21–29 m2 g−1). Phase purity increases substantially by prolonging the calcination time. The synthesized high surface area α‐alumina was studied as support for silver catalysts in the epoxidation of ethylene and allowed high silver loadings. Ethylene oxide selectivity increased with enhanced α‐alumina phase purity. Our 30 wt % silver catalyst on pure high surface area α‐alumina did not show loss in selectivity compared to a 15 wt % silver catalyst on commercial non‐porous α‐alumina. This shows the potential of carbohydrate templates, the importance of templating parameters and the benefits of pure high surface area α‐alumina as support for silver catalysts.
Interaction of G‐quadruplex Forming DNA Aptamers with PAMAM Dendrimers Studied by Dynamic Light Scattering and UV‐VIS Spectrophotometry**
Authors: Garaiová Zuzana , Gašperová Martina , Šubjaková Veronika , Hianik Tibor 
Published: June 2023

AbstractThe complexes of G‐quadruplex forming DNA thrombin binding aptamers (TBA) and polyamidoamine dendrimers (PAMAM) were studied with the aim to form a model targeted drug delivery system. Hydrodynamic diameter, zeta potential and melting temperature (Tm) were investigated by dynamic light scattering and UV‐VIS spectrophotometry. Non‐covalent adsorption by means of electrostatic interaction between positively charged amino groups of dendrimers (+) and negatively charged phosphate groups of aptamers (−) has driven the formation of aggregates. The size of complexes was in the range of 0.2–2 μm and depended on the type of dispersant, charge ratio (+/−) and temperature. Raising the temperature increased the polydispersity, new smaller size distributions were observed indicating the G‐quadruplex unfolding. The melting transition temperature of TBA aptamer was affected by the presence of amino‐terminated PAMAM rather than carboxylated succinic acid PAMAM−SAH dendrimer, thus supporting the electrostatic nature of interaction that disturbed denaturation of target‐specific quadruplex aptamer structure.