bluuebunny/crossref_metadata_2025_split huggingface dataset:
Disulfide Bond Accelerated Transesterification in Poly(β‐hydrazide disulfide esters) toward Fast Network Rearrangements
Authors: Li Guanglong , Soo Han Sen , Huang Jing , Li Ting , Wang Yang , Wang Shibo , Dong Weifu 
Published: May 2023

AbstractThe development of catalyst‐free ester‐based covalent adaptable networks (CANs) provides a new approach to achieve milder reaction conditions to reprocess thermoset resins. Despite recent advances, however, accelerating network rearrangements requires the introduction of hydroxyl groups into the network. In this study, disulfide bonds are introduced into the CANs to add new kinetically facile pathways to accelerate network rearrangement. Kinetic experiments using small molecule models of the CANs show that the presence of the disulfide bonds can accelerate transesterification. These insights are applied to synthesize new kinds of poly(β‐hydrazide disulfide esters) (PSHEs) using thioctic acyl hydrazine (TAH) as a precursor for ring‐opening polymerization with the hydroxyl‐free multifunctional acrylates. The PSHE CANs have lower relaxation times (505–652 s) than the polymer containing only β‐hydrazide esters (2903 s). The ring‐opening polymerization of TAH improves the crosslinking density, heating resistance deformation temperature, and UV shielding performance of the PSHEs. Thus, this work provides a practical strategy to reduce the reprocessing temperatures of CANs.
Structural elucidation of lactone derivatives from Dendrobium pendulum
Authors: Zhang Mao‐Sheng , Jiang Yu , Cheng Lei , Yang Jian‐Wen , Dong Min‐Jian , Sun Cheng‐Xin , Xiao Shi‐Ji 
Published: May 2023

AbstractSix lactone derivatives, including four α‐pyrones derivatives (1–4), two α‐furanone derivatives (5 and 6), were isolated from the Dendrobium pendulum. Structural elucidation of these undescribed lactone derivatives were accomplished on the basis of detailed nuclear magnetic resonance analysis, and the absolute configurations of compounds 1–4 were confirmed by electronic circular dichroism (ECD) techniques. The cytotoxic effects of isolated compounds on human breast cancer cell MDA‐MB‐231 were evaluated by the MTT assay.
Analytical solution for one‐dimensional steady‐state VOCs diffusion in simplified capillary cover systems
Authors: Yan Huaxiang , Xie Haijian , Rajabi Hamid , Gu Xiting , Chen Yun 
Published: May 2023

AbstractThe analytical solution for a one‐dimensional and steady‐state model is proposed to investigate the diffusion of VOCs within landfill capillary cover systems under unsaturated water flow and stable conditions. Examples of coupled water flow and VOCs diffusion are evaluated by the proposed analytical solution to discuss the effects of the evaporation rate and clay thickness. The proficiency of the unsaturated cover system in minimising VOC emissions was also investigated. It was found that the non‐uniform distribution of water content can cause one order of magnitude reductions in the effective diffusion coefficient of VOCs, resulting in the attenuation of VOCs in the cover system. The concentration profile of VOCs is lower for the case with a larger evaporation rate. Ignoring the non‐uniform distribution of water content induced by water flow would underestimate the surface flux of VOCs by a factor of 1.8. The water content and VOC concentration in the cover system can be effectively diminished with the thickness of the clayey layer increasing. The surface flux of VOCs is considerably decreased with increasing thickness of clayey layer. Increasing the thickness of clayey layer from 0.2 to 1 m leads to a reduction in the surface flux of VOCs by a factor of 2.9. The sensitivity analysis provides further insights into the critical role of water flow in affecting VOC transport through the unsaturated cover system. The outcomes highlight that the impacts of unsaturated water flow within the covering system should be considered for assessment of VOC emissions.
Explicit topology optimization for graded lattice flexoelectric nanostructures via ersatz material model
Authors: Zhang Weisheng , Meng Yao , Yan Xiaoye , Shao Li‐Hua , Yan Dongze , Liu Chang , Youn Sung‐Kie , Guo Xu 
Published: May 2023

AbstractThis work proposes a moving morphable component (MMC)‐based topology optimization approach for designing graded lattice flexoelectric nanostructures, which are generally considered to have better flexoelectric properties. To this end, the infill structure is described with the use of a set of components. A coordinate perturbation is made to the topology description functions of the components to achieve a graded distribution of the flexoelectric materials. Resorting to the explicit parameters of the components, the singular disconnected structure can be naturally controlled with the use of lower/upper bound constraints. To ensure the continuity in the approximation of the PDEs of flexoelectricity, an ersatz material model is developed by combining isogeometric analysis (IGA) with MMC. Since MMC provides definite feature sizes in the optimization result, the complicated infill lattice can be manufactured by additive manufacturing directly. The flexoelectric performances of the design results from the proposed approach are demonstrated through both numerical examples and experimental measurements. It is shown that the obtained novel infill lattice structures have better flexoelectric performance when compared with traditional structural configurations.
How can collaboration deliver? A structurational approach to understanding collaboration process and effectiveness
Authors: Seo Danbi , Bryson John M. , Crosby Barbara C. 
Published: May 2023

AbstractThis study examines how a collaboration's internal and external factors interact over time and how the interactions affect the collaboration's process and effectiveness. Using a process‐oriented case study, we examine how a voluntary collaboration that had made marginal gains over several years demonstrated significant progress during the COVID‐19 pandemic and civil unrest following the murder of George Floyd on May 25, 2020. Drawing on strong structuration theory, we explore the collaboration's internal efforts, changes in the broader environment, and the interplay between them. Our findings reveal that collaboration's internal efforts and external environment enable and constrain each other, which shapes the collaboration's process and effectiveness. Based on these findings, we contribute to a more nuanced understanding of the collaboration process and effectiveness by (1) using a strong structurational approach to demonstrate processual mechanics of connecting processes and structures in collaboration, and (2) highlighting the emergent nature of collaboration and the importance of learning and adaptability for an effective and sustainable collaboration.
Hybrid membranes of polyphenylsulfone/functionalized MXene nanosheets for the pervaporation dehydration of acetone and isopropyl alcohol
Authors: Najafipour Mahya , Mousavi Seyed Mahmoud , Saljoughi Ehsan , Kiani Shirin 
Published: May 2023

AbstractThe resistance of pervaporation (PV) dehydration membranes to organic solvents is of great importance. Polyphenylsulfone (PPSU) is known to resist most organic media; however, its acetone dehydration performance has not been evaluated yet. In the present study, MXene hydrophilic nanosheets with hydroxyl functional groups were synthesized and then incorporated in the PPSU membrane to prepare the PPSU/MXene PV membrane for the first time. The prepared membranes were used in the dehydration of acetone/water and isopropyl alcohol (IPA)/water. By comparing the attenuated total reflectance Fourier transform infrared spectroscopy spectra of the pure membrane and the nanocomposite membrane, the incorporation of hydroxyl functional groups into PPSU via MXene loading was confirmed. MXene improved the hydrophilicity and tensile properties of the membrane. The separation factor in acetone dehydration dropped with MXene incorporation up to 1 wt% and then increased with further MXene loading; however, it stayed almost unchanged in IPA dehydration with adding 0.5, 1, and 1.5 wt% MXene to the membrane. Incorporating 1 wt% MXene, the pervaporation separation index (PSI) was improved by 5.8 times in acetone dehydration and 9.7 times in IPA dehydration. The PPSU/1 wt% MXene membrane provided a remarkably higher separation factor (261 vs. 136) and PSI (99 vs. 58 kg/m2h) in acetone dehydration than in IPA dehydration; however, total flux was slightly lower in acetone dehydration (0.38 vs. 0.43 kg/m2h). This study implies that PPSU/MXene is a promising membrane material for the PV dehydration of organics.Highlights
MXene hydrophilic nanosheets were synthesized.
The synthesized MXene was loaded into the polyphenylsulfone membrane.
PPSU/MXene membranes were used in pervaporation dehydration.
MXene improved the hydrophilicity and tensile properties of the membrane.
PPSU/MXene is a promising membrane material for PV dehydration of organics.
Identification and quantification of degradome components in human synovial fluid reveals an increased proteolytic activity in knee osteoarthritis patients vs controls
Authors: Rydén Martin , Turkiewicz Aleksandra , Önnerfjord Patrik , Tjörnstrand Jon , Englund Martin , Ali Neserin 
Published: May 2023

AbstractSynovial fluid (SF) may contain cleavage products of proteolytic activities. Our aim was to characterize the degradome through analysis of proteolytic activity and differential abundance of these components in a peptidomic analysis of SF in knee osteoarthritis (OA) patients versus controls (n = 23). SF samples from end‐stage knee osteoarthritis patients undergoing total knee replacement surgery and controls, that is, deceased donors without known knee disease were previously run using liquid chromatography mass spectrometry (LC‐MS). This data was used to perform new database searches generating results for non‐tryptic and semi‐tryptic peptides for studies of degradomics in OA. We used linear mixed models to estimate differences in peptide‐level expression between the two groups. Known proteolytic events (from the MEROPS peptidase database) were mapped to the dataset, allowing the identification of potential proteases and which substrates they cleave. We also developed a peptide‐centric R tool, proteasy, which facilitates analyses that involve retrieval and mapping of proteolytic events. We identified 429 differentially abundant peptides. We found that the increased abundance of cleaved APOA1 peptides is likely a consequence of enzymatic degradation by metalloproteinases and chymase. We identified metalloproteinase, chymase, and cathepsins as the main proteolytic actors. The analysis indicated increased activity of these proteases irrespective of their abundance.
Co‐occurring chronic pain and primary psychological disorders in adolescents: A scoping review
Authors: Bateman Sharon , Caes Line , Eccleston Christopher , Noel Melanie , Jordan Abbie 
Published: May 2023

AbstractLong‐term health conditions, whether mental or physical, often co‐occur in adolescents. For instance, adolescents with chronic pain may experience co‐occurring primary psychological disorders. In this scoping review, we determine the influence of co‐occurring chronic pain and primary psychological disorders on adolescents' functioning. A systematic search of six databases was conducted to identify articles if they were: (1) peer‐reviewed; (2) reported original findings; (3) included participants aged 11–19 years, who experienced chronic pain (i.e., pain lasting 3 months or more) and had a co‐occurring diagnosis of a primary psychological disorder; and (4) assessed functioning. Searches returned 9864 articles after the removal of duplicates. A two‐phase abstract and full‐text screening process identified two eligible articles which compared emotional functioning (n = 1) and social functioning (n = 2) between groups of adolescents with co‐occurring chronic pain and primary psychological disorders with adolescents only reporting chronic pain. Overall findings revealed no differences in social functioning, but adolescents with co‐occurring chronic pain and a primary psychological disorder (depression and anxiety) reported worse emotional functioning compared with adolescents with chronic pain alone. This review confirms the limited research on the co‐occurrence of primary psychological disorders and chronic pain in adolescents by only identifying two eligible articles exploring the co‐occurrence of chronic pain with depression, anxiety, and/or attentional disorders.
Tailoring materials for their need: Sustainable layered double hydroxide polymer composites
Authors: Oosthuizen Hester , Jones Louise , Naseem Sajid , Labuschagne F. J. W. J. , Leuteritz Andreas 
Published: May 2023

AbstractLayered double hydroxides (LDHs) are popular functional fillers increasingly used in composite materials. They can be designed via metal and anion selection as well as the specific processing method to prepare structures with desired functional properties. This makes LDHs suitable for many different applications, including as flame‐retardants, UV stabilizers, and anti‐microbial agents in polymer nanocomposites as well as a photo‐absorber in a solar cell. Here an overview of LDH synthesis and modification, composite preparation as well as characterization is given to highlight the unique ability for customization of LDH.
Quick knockdown results in high mortality: is this theory correct? A case study with phosphine and the red flour beetle
Authors: Sakka Maria K. , Nakas Christos T. , Bochtis Dionysis , Athanassiou Christos G. 
Published: May 2023

AbstractBACKGROUNDThe fumigant phosphine is used all over the world for disinfestation of stored grains and commodities. Adults of 23 different populations of Tribolium castaneum from 10 different countries were evaluated for phosphine resistance using a modification of the Detia Degesch Phosphine Tolerance Test Kit (DDPTTK). Adults were exposed to 3000 ppm and recorded for 5–270 min for their mobility.RESULTSAmong the tested populations, high levels of phosphine resistance were recorded in populations from Brazil, Serbia, and Spain. No survivals were recorded after 7 days post exposure for eight of 23 in a tested population.CONCLUSIONSOur work revealed four scenarios: 1, quick knockdown–low (or no) recovery; 2, Slow knockdown–high recovery; 3, Quick knockdown–high recovery; and 4, Slow knockdown–low recovery. Our data indicate that post exposure period is critical for the evaluation and characterization of phosphine resistance. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Self‐assembling tripeptide forming water‐bound channels and hydrogels
Authors: Parisi Evelina , Adorinni Simone , Garcia Ana M. , Kralj Slavko , De Zorzi Rita , Marchesan Silvia 
Published: May 2023

D‐Ser(tBu)‐L‐Phe‐L‐Trp is described as a self‐assembling tripeptide that yields nanofibrillar hydrogels at physiological conditions (phosphate buffer at pH 7.4). The peptide is characterized by several spectroscopic methods, such as circular dichroism and fluorescence, oscillatory rheometry, and transmission electron microscopy. Single‐crystal X‐ray diffraction reveals supramolecular packing into water‐bound channels and allows the visualization of the intermolecular interactions holding together peptide stacks.
Integrated green‐and‐quality inspection schemes for green product quality with six‐sigma yield assurance and risk management
Authors: Shu Ming‐Hung , Wang To‐Cheng , Hsu Bi‐Min 
Published: May 2023

AbstractDue to worldwide awareness of the sustainable environment, research on green production and distribution has grown within academic and industrial communities. For an eco‐friendly environment, limiting hazardous substances (HSs) concentration in products quality assessment is one of the most crucial strategies to achieve the 4Rs of the products, namely, Reduction, Reuse, Recycle, and Recovery. Trustworthy inspection, evaluation, and validation methods to ensure multiprocess yield and risk of acquiring green product quality are desired for the industry. However, the existing methods use arbitrary inspection sizes, levels of capability, and ignore controls for both Types I and II risks. To overcome these drawbacks and pursue Six‐Sigma green capability suppliers, this study establishes a multiprocess performance chart, called the green product quality analysis chart (GPQAC), to inspect and analyze green product submissions. GPQAC implements variables sampling plans based on unilateral and bilateral process capability indices. The chart operates at given Six‐Sigma green and quality compliance and simultaneously controlled Type I and Type II risks. The required sample size and rejection and acceptance capability zones are determined from the multiprocess optimization taking into account the Bonferroni correction. This determination enables GPQAC to aggregate the overall status of a group of processes and assess the ability of the supplier processes to execute efficiently and economically relative to the customer specifications. We also establish web‐based GPQAC graphs using a cloud‐computing program for lot disposition. Finally, a real‐world case illustrates the utility of the GPQAC integrated variables sampling scheme in enhancing environmental sustainability.
Resection of tracheal mucosa‐associated lymphoid tissue (MALT) lymphoma by bronchoscopic high‐frequency electrosurgical snare: Case report
Authors: Nakamura Satoshi , Kishikawa Yasuyuki , Koike Ai , Takahata Yuriko , Okamatsu Yuki , Fujita Akitaka , Arimura‐Omori Masako , Harada Taishi 
Published: May 2023

AbstractThere is no standard method of bronchoscopic local therapy for tracheal tumours. We herein present a case involving a 61‐year‐old woman who was diagnosed with tracheal mucosa‐associated lymphoid tissue lymphoma and underwent resection by a bronchoscopic high‐frequency electrosurgical snare. Few reports to date have described such use of high‐frequency electrosurgical snares; however, they are effective for the treatment of tracheal tumours, especially pedunculated tumours.
Remote monitoring of short‐term body mass variation in savanna ungulates
Authors: Fuentes‐Allende Nicolás , Stephens Philip A. , MacTavish Lynne M. , MacTavish Dougal , Willis Stephen G. 
Published: May 2023

AbstractLarge herbivores in seasonal environments often experience mass variation due to temporal changes in the availability of critical resources like water and forage, as well as due to breeding events. Yet the documentation of mass variation in mammals of highly seasonal savanna habitats, which host the highest densities of grazing ungulates globally, has rarely been explored. Here, we showcase a method to evaluate seasonal mass variation in bovids. Our method used mineral‐baited scales and camera traps to enable us to track the body mass of three species through a period of wet and dry seasons in a South African savanna ecosystem. To illustrate one potential application of the method, we related body mass data to time, weather and resource availability. This showed that individuals altered their body masses markedly between seasons with, for example, female Kudu (Tragelaphus strepsiceros) gaining, on average, >21 kg over the 15‐week wet‐season period in 1 year. These changes were positively related to factors such as vegetation productivity (assessed using NDVI) and the frequency of rains. This method enables easy, non‐lethal and non‐invasive acquisition of mass data. The equipment is easy to deploy concurrently over large areas. Monitoring by this method has a variety of possible applications, potentially providing a useful early‐warning indicator of body condition to inform management, or providing information about ecological states, such as parturition or the reproductive effort of males. Given the longer and harsher dry seasons experienced in many arid systems in recent decades, and projected in future, this method may provide a straightforward means of monitoring long‐term body condition in animals as a result of environmental change.
Highlighting the role of agriculture and geospatial technology in food security and sustainable development goals
Authors: Pandey Prem Chandra , Pandey Manish 
Published: May 2023

AbstractFood security is a global challenge that aligns with several Sustainable Development Goals (SDGs), including SDG 1 ‐ “No Poverty”, SDG 2 ‐ “Zero Hunger,” SDG 3 ‐ “Good Health and Well‐being,” SDG 13 ‐ “Climate Action,” and SDG 15 ‐ “Life on Land.”. To effectively address this issue, a convergence of agriculture and technology is crucial, incorporating precision agriculture, sustainable agriculture, bio‐economy and advanced technologies such as machineries, Artificial intelligence‐meachine learning and geospatial technology. Recent trends in food security worldwide have witnessed the adoption of technological advancements. However, it is important to consider biodiversity when implementing and adopting technological advancements. The integration of technology in agricultural practices aim to reduce chemical usage in farms, while increased production remains the main objective of smart farming and Precision Agriculture. By minimizing the use or implementing localized approaches for chemicals on farms, we can preserve soil‐faunal diversity, which is at risk along with targets due to excessive applications of pesticides, herbicides, and insecticides. Geospatial technology plays a significant role by leveraging remotely sensed images acquired through satellites, aerial platforms, and GPS‐tagged drones to enhance agricultural practices, improve crop growth and increase crop yields. Through geospatial technology, we can map and monitor soil and crop conditions, and effectively conserve, protect, and manage biodiversity on a global scale. The applications of remote sensing technology consider ecological and environmental parameters, soil factors, crop conditions, and plant‐soil diversity to optimize yields and agricultural productivity. Additionally, the evaluation of various agricultural practices such as sustainable agriculture, bio‐economy, using technology can contribute to increased yields, profitability, and biodiversity conservation as central components of these practices. This study emphasizes that achieving the SDG objectives is attainable through agriculture, which has direct and indirect connections to all SDGs. Geospatial technology plays a vital role in supporting the objectives at spatial and temporal scales by facilitating agricultural practices, ensuring food security, preserving biodiversity, monitoring soil and crop conditions, and promoting sustainable development.
Sclerema Neonatorum in a Premature Newborn: A Case Report
Authors: Alhalabi Rima , Salloum Riham , Alhalabi Dima , Oun Youlla , Abudeeb Julia , Kikhia Judy , Mouhamad Manal 
Published: May 2023

Abstract
Sclerema neonatorum (SN) is a rare condition of neonatal panniculitis with a poor prognosis and a high fatality rate. It clinically presents as hardening of the skin and subcutaneous adipose tissue extending throughout the body, sparing the fat-free soles, palms, and genitalia. SN typically affects gravely ill, preterm neonates in the first week of life and diagnosis is often clinical. We report a case of an eight-day-old premature infant diagnosed with early-onset neonatal sepsis who presented with clinical and histopathological features of SN. Despite early treatment of the sepsis with intravenous antibiotics and the SN with a topical corticosteroid cream and moisturiser, the infant died on the twelfth day of life.