bluuebunny/crossref_metadata_2025_split huggingface dataset:
Caesium Acetate‐Based Electrolytes for Aqueous Electrical Double Layer Capacitors
Authors: Liu Siqi , Stettner Timo , Klukas Ronald , Porada Thomas , Furda Kristina , Fernández Alba Martín , Balducci Andrea 
Published: September 2022

AbstractIn this work, we report about the use of caesium acetate (CsOAc)‐based electrolytes for Electrical Double Layer Capacitors (EDLCs). We showed that solutions of 6.4 m CsOAc in H2O, which is a highly concentrated aqueous electrolyte, and 21 m CsOAc in H2O, which is a Water in Salt Electrolyte (WiSE), display very favourable chemical‐physical properties. EDLCs containing 21 m CsOAc in H2O as electrolyte display operating voltage of 1.7 V. These devices display good energy density and are able to retain all their initial capacitance after 400 hours of floating at 1.7 V. On the other hand, EDLCs containing 6.4 m CsOAc in H2O as electrolyte display operative voltage of 1.6 V and are delivering at 10 A g−1 very high energy and power density (4 Wh kg−1 and 14.1 kW kg−1, respectively). Furthermore, they can retain 91 % of their initial capacitance after 400 hours of floating at 1.6 V. This performance, which is among the highest so far reported for aqueous‐based EDLCs, indicates that CsOAc can be considered a very promising salt for the realization of advanced EDLCs.
Time‐cost efficient memory configuration for serverless workflow applications
Authors: Li Zengpeng , Yu Huiqun , Fan Guisheng 
Published: September 2022

SummaryRecently, workflow applications are increasingly migrated to Function‐as‐a‐Service platforms which are easy to manage, highly‐scalable, and pay‐as‐you‐go. Meanwhile, users face challenges in migration of serverless applications because of the lack of efficient algorithm for workflow memory configuration to optimize the performance. To this end, this article proposes a heuristic urgency‐based algorithm UWC and a meta‐heuristic hybrid algorithm BPSO to tackle the time‐cost tradeoff. UWC sorts functions and allocates each function an appropriate memory size by greedy strategy. BPSO hybridizes particle swarm optimization as well as beetle antennae search algorithm to guide particles to search directionally and utilizes nonlinear inertia weight to avoid local premature convergence. Extensive experiments with classical serverless application demonstrate that UWC and BPSO are very competitive in comparison with existing algorithms as they can find the optimal workflow memory configuration.
Weighted ridge and Liu estimators for linear regression model
Authors: Babar Iqra , Chand Sohail 
Published: September 2022

SummaryIn linear regression model, ridge regression and two‐parameter Liu estimator (LE) are the most widely used methods in recent decade to overcome the problem of multicollinearity especially for ill conditioned cases. In this article, we propose new weighted ridge and Liu estimators which remain positive for each level of multicollinearity and also give smaller mean squared error (MSE) than the existing ridge regression and existing Liu estimators. In addition, a new adaptive LE for k which accounts for the error variance is also proposed to assess the ill condition cases. Furthermore, new weighted ridge estimator of Kibria arithmetic mean method and two parameter Liu estimator with Liu method are also proposed.
Extensive Monte‐Carlo simulations are used to evaluate the performance of proposed estimators. Based on MSE criterion, the proposed estimators perform better than the existing estimators in many situations including severe multicollinearity and small signal‐to‐ noise ratio. Two real life applications are also provided to illustrate the usefulness of new estimators.
Metal‐Free N‐Doped Carbon Catalyst Derived from Chitosan for Aqueous Formic Acid‐Mediated Selective Reductive Formylation of Quinoline and Nitroarenes
Authors: Chauhan Arzoo , Banerjee Arghya , Kar Ashish Kumar , Srivastava Rajendra 
Published: September 2022

AbstractA chitosan‐derived metal‐free N‐doped carbon catalyst was synthesized and investigated for selective reductive formylation of quinoline to N‐formyl‐tetrahydroquinoline and nitroarenes to N‐formyl anilides via aqueous formic acid (FA)‐mediated catalytic transformation. FA dissociated on the catalyst surface and acted as a hydrogenating and formylating source for selective N‐formylation of N‐heteroarenes. The carbonized catalyst prepared at 700 °C offered the best activity. A 92 % yield of N‐formyl‐tetrahydroquinoline after 14 h and >99 % yield for N‐formyl anilide after 12 h at 160 °C were obtained. The excellent catalytic activity was correlated with the type of “N” species and the basicity of the catalyst. Density functional theory calculations revealed that a water‐assisted FA decomposition pathway (deprotonation and dehydroxylation) generated the surface adsorbed −H and −HCOO species, required for the formation of N‐formylated products. In addition, the selective formation of N‐formyl‐tetrahydroquinoline and N‐formyl anilides was explained by a comprehensive reaction energetics analysis.
Assessment of the thermal efficiency of subcritical power generation cycles using environmentally friendly fluids at various heat source temperatures
Authors: Ahmed Aram M. 
Published: September 2022

AbstractThis study aims to investigate the effect of the various heat source temperature (Tmax) on thermal efficiency (ηth) for the organic rankine cycle (ORC), trilateral flash cycle (TFC), and partial evaporator (PE‐ORC). For this purpose, HFE7000, HFE7100, and HFE7500 were used as working fluids (WFs). The results indicate that by using HFE7000, the maximum ηth was obtained for all used power cycles and temperature ranges. Compared to HFE7100, HFE7500 has higher ηth at TFC, and PE‐ORC at low Tmax, while HFE7100 has the maximum value at high Tmax. The ηth at Tmax = 353 K for TFC were 8.71%, 8.34%, and 8.59%, while for ORC 12.38%, 11.82%, and 11.71% for HFE7000, HFE7100, and HFE7500, respectively. At Tmax = 423 K for TFC were 17.65%, 16.26%, and 16.52%, while for ORC were 18.56%, 17.38%, and 16.59% for HFE7000, HFE7100, and HFE7500, respectively. The ηth results indicate that the maximum improvement at TFC by using HFE7000, and the minimum was at HFE7100, while for ORC, the maximum was at HFE7000, and the minimum was at HFE7500. Therefore, the HFE7000 fluid behaves as normal dry fluids at any used temperature, while HFE7100 as normal dry WFs at low Tmax while behaving as very dry WFs at Tmax extremely close to its Tcr. HFE7500 behaves as very dry working fluids. The ηth intersections temperature was at Tmax = 425.2 K and Tmax = 455.9 K for HFE7500 and HFE7100, respectively. However, there is no ηth intersection for HFE7000.
Reinforcement optimization for decentralized service placement policy in IoT‐centric fog environment
Authors: Sulimani Hamza , Sajjad Akbar Muhammad , Alghamdi Wael Y. , Kaiwartya Omprakash , Jan Tony , Simoff Simeon , Prasad Mukesh 
Published: September 2022

AbstractA decentralized service placement policy plays a key role in distributed systems, such as fog computing, where sharing workloads fairly among active computing nodes is critical. A decentralized policy is an inherent feature of the service placement process that may improve load balancing among computers and can reduce the latency in many real‐time Internet of Things (IoT) applications. This article proposes reinforcement optimization for a decentralized service placement policy, which attempts to mitigate some of the drawbacks of existing service placement policies. Matching task size with node specifications and the allocation of less popular but time‐sensitive applications in the fog layer are the primary contributions of this study. Extensive experimental comparisons are made between the proposed algorithm and other well‐known algorithms over service latency, network usage, and computing usage using the iFogSim simulator. A microservice‐based application with varying sizes of computing requests are tested experimentally and show that the proposed algorithm effectively serves computing instances that are closer to users, reducing service latency and network usage. Compared to the existing models, the proposed modified algorithm reduces service latency by 24.1%, network usage by 4%, and computing usage by 20%, thus highlighting positive outcomes when using the proposed algorithm for fog analytics in future real‐time IoT applications.
An efficient lightweight encryption model with re‐encryption scheme to create robust blockchain architecture for COVID‐19 data
Authors: Avula Gopalakrishna Chandini , Basarkod Prabhugoud I. 
Published: September 2022

AbstractHandling electronic health records from the Internet of Medical Things is one of the most challenging research areas as it consists of sensitive information, which targets attackers. Also, dealing with modern healthcare systems is highly complex and expensive, requiring much secured storage space. However, blockchain technology can mitigate these problems through improved health record management. The proposed work develops a scalable, lightweight framework based on blockchain technology to improve COVID‐19 data security, scalability and patient privacy. Initially, the COVID‐19 related data records are hashed using the enhanced Merkle tree data structure. The hashed values are encrypted by lattice based cryptography with a Homomorphic proxy re‐encryption scheme in which the input data are secured. After completing the encryption process, the blockchain uses inter planetary file system to store secured information. Finally, the Proof of Work concept is utilized to validate the security of the input COVID based data records. The proposed work's experimental setup is performed using the Python tool. The performance metrics like encryption time, re‐encryption time, decryption time, overall processing time, and latency prove the efficacy of the proposed schemes.
Optimizing teaching effectiveness in dental education for a new generation of learners
Authors: Walinski Christopher J. , Ontiveros Joe C. , Liu Fei , Crain Geralyn , Vardar‐Sengul Saynur 
Published: September 2022

AbstractPurposeToday's dental students, Generation Z (Gen Z), are said to learn differently than those of previous generations. As generations of dental students vary, our teaching styles must keep up with unique and changing groups of individuals.MethodsThis article discusses learner‐focused teaching methods including techniques that address the characteristics of Gen Z learners. Blended learning methods that combine online media with traditional face‐to‐face sessions, team‐based learning, and a flipped classroom format have previously been suggested as ways to increase learning effectiveness and student satisfaction.ResultsIn this paper, the characteristics and preferences of Gen Z students are described along with the challenges they create with conventional teaching methods. An implementation strategy using principles from organizational agility and Bolman and Deal's Four Frames Model is proposed for dental schools to transition to a more learner‐centered teaching approach.ConclusionsThe suggested strategy can be customized and could be useful to schools that wish to enhance their teaching methods to meet the learning needs of Gen Z dental students and beyond.
Ozone at low concentration modulates microglial activity in vitro: A multimodal microscopy and biomolecular study
Authors: Lacavalla Maria Assunta , Inguscio Chiara Rita , Cisterna Barbara , Bernardi Paolo , Costanzo Manuela , Galiè Mirco , Scambi Ilaria , Angelini Osvaldo , Tabaracci Gabriele , Malatesta Manuela 
Published: September 2022

AbstractOxygen‐ozone (O2‐O3) therapy is an adjuvant/complementary treatment based on the activation of antioxidant and cytoprotective pathways driven by the nuclear factor erythroid 2‐related factor 2 (Nrf2). Many drugs, including dimethyl fumarate (DMF), that are used to reduce inflammation in oxidative‐stress‐related neurodegenerative diseases, act through the Nrf2‐pathway. The scope of the present investigation was to get a deeper insight into the mechanisms responsible for the beneficial result of O2‐O3 treatment in some neurodegenerative diseases. To do this, we used an integrated approach of multimodal microscopy (bright‐field and fluorescence microscopy, transmission and scanning electron microscopy) and biomolecular techniques to investigate the effects of the low O3 concentrations currently used in clinical practice in lipopolysaccharide (LPS)‐activated microglial cells human microglial clone 3 (HMC3) and in DMF‐treated LPS‐activated (LPS + DMF) HMC3 cells. The results at light and electron microscopy showed that LPS‐activation induced morphological modifications of HMC3 cells from elongated/branched to larger roundish shape, cytoplasmic accumulation of lipid droplets, decreased electron density of the cytoplasm and mitochondria, decreased amount of Nrf2 and increased migration rate, while biomolecular data demonstrated that Heme oxygenase 1 gene expression and the secretion of the pro‐inflammatory cytokines, Interleukin‐6, and tumor necrosis factor‐α augmented. O3 treatment did not affect cell viability, proliferation, and morphological features of both LPS‐activated and LPS + DMF cells, whereas the cell motility and the secretion of pro‐inflammatory cytokines were significantly decreased. This evidence suggests that modulation of microglia activity may contribute to the beneficial effects of the O2‐O3 therapy in patients with neurodegenerative disorders characterized by chronic inflammation.Highlights
Low‐dose ozone (O3) does not damage activated microglial cells in vitro
Low‐dose O3 decreases cell motility and pro‐inflammatory cytokine secretion in activated microglial cells in vitro
Low‐dose O3 potentiates the effect of an anti‐inflammatory drug on activated microglial cells
Tuning structural properties, morphology and magnetic characteristics of nanostructuredNi‐Co‐Fe/ITOternary alloys by galvanostatic pretreatment process
Authors: Saraç Umut , Trong Dung Nguyen , Baykul Mevlana Celalettin , Long Van Cao , Ţălu Ştefan 
Published: September 2022

AbstractIn this research, the structural properties, surface morphology, and magnetic characteristics of nanostructured ternary ferromagnetic alloys grown by a cost‐effective and effortless two‐step electrochemical deposition method on indium tin oxide (ITO) substrates with and without a galvanostatic pretreatment process (GPP) were examined. The GPP was applied at various pretreatment current densities (PCDs) such as −10, −20, and − 30 mA/cm2. The effect of the PCD on the Ni, Co, and Fe contents is found to be insignificant and all resultant Ni‐Co‐Fe thin films show an abnormal co‐deposition. The films have nano‐sized crystallites ranging from 17.3 to 19.6 nm and showed a face‐centered cubic structure with the [111] preferential growth. Compared to the non‐GPP applied Ni‐Co‐Fe film, growing the ternary Ni‐Co‐Fe film on ITO at the PCD of −30 mA/cm2causes an improvement in the crystal quality and a reduction in the particle size from 150 ± 50 to 70 ± 20 nm. A decrement in the surface roughness and coercivity was also achieved by applying the GPP at the PCD of −30 mA/cm2, but the opposite is true for the GPP performed at the PCD of −10 mA/cm2. The GPP has an effect on the magnetic Squareness Ratio (SQR), but the influence of the PCD on the SQR parameter is negligible. The obtained findings reveal that the properties of the Ni‐Co‐Fe/ITO ternary alloys can be tuned through the GPP applied in various PCDs.Highlights• The effect of the PCD on the Ni, Co, and Fe contents is found to be insignificant.• The films have nano‐sized crystallites and showed a face‐centered cubic structure with the [111] preferential growth.• The analysis reveals that the GPP changes the crystal quality,Hcparameter, surface roughness, and particle size of the films.• The GPP has an effect on the magnetic squareness ratio (SQR), but the influence of the PCD on the SQR parameter is negligible.• The films had nano‐sized crystallites ranging from 17.3 to 19.6 nm.• The films were ferromagnetic, and theHcand SQR parameters of the films ranged from 30.2 to 42.7 Oe and from 8.8% to 19.6%.
The SwedishCOG6‐CDGexperience and a comprehensive literature review
Authors: Xia Zhi‐Jie , Ng Bobby G. , Jennions Elizabeth , Blomqvist Maria , Sandqvist Wiklund Anneli , Hedberg‐Oldfors Carola , Gonzalez Carlos Rodriguez , Freeze Hudson H. , Ygberg Sofia , Eklund Erik A. 
Published: September 2022

AbstractHere, we present the first two Swedish cases of Conserved Oligomeric Golgi complex subunit 6‐congenital disorders of glycosylation (COG6‐CDG). Their clinical symptoms include intellectual disability, Attention Deficit/Hyperactivity Disorder (ADHD), delayed brain myelinization, progressive microcephaly, joint laxity, hyperkeratosis, frequent infections, and enamel hypoplasia. In one family, compound heterozygous variants inCOG6were identified, where one (c.785A>G; p.Tyr262Cys) has previously been described in patients of Moroccan descent, whereas the other (c.238G>A; p.Glu80Lys) is undescribed. On the other hand, a previously undescribed homozygous duplication (c.1793_1795dup) was deemed the cause of the disease. To confirm the pathogenicity of the variants, we treated patient and control fibroblasts with the ER‐Golgi transport inhibitor Brefeldin‐A and show that patient cells manifest a significantly slower anterograde and retrograde ER‐Golgi transport.
The risk of classical galactosaemia in newborns with borderline galactose metabolites on newborn screening
Authors: Bernhardt Isaac , Glamuzina Emma , Ryder Bryony , Knoll Detlef , Heather Natasha , De Hora Mark , Webster Dianne , Wilson Callum 
Published: September 2022

AbstractNewborn screening (NBS) for classical galactosaemia (CG) facilitates early diagnosis and treatment to prevent life‐threatening complications, but remains controversial, and screening protocols vary widely between programmes. False‐negatives associated with first‐tier screening of total galactose metabolites (TGAL) are infrequently reported; however, newborns with TGAL below the screening threshold have not been systematically studied. Following the diagnosis of CG in two siblings missed by NBS, a retrospective cohort study of infants with TGAL just below the cut‐off (1.5 mmol/L blood) was conducted. Children born in New Zealand (NZ) from 2011 to 2019, with TGAL 1.0–1.49 mmol/L on NBS were identified from the national metabolic screening programme (NMSP) database, and clinical coding data and medical records were reviewed. GALT sequencing was performed if CG could not be excluded following review of medical records. 328 infants with TGAL 1.0–1.49 mmol/L on NBS were identified, of whom 35 had ICD‐10 codes relevant to CG including vomiting, poor feeding, weight loss, failure to thrive, jaundice, hepatitis, Escherichia coli urinary tract infection, sepsis, intracranial hypertension and death. CG could be excluded in 34/35, due to documentation of clinical improvement with continued dietary galactose intake, or a clear alternative aetiology. GALT sequencing in the remaining individual confirmed Duarte‐variant galactosaemia (DG). In conclusion, undiagnosed CG appears to be rare in those with TGAL 1.0–1.49 mmol/L on NBS; however, our recent experience with missed cases is nevertheless concerning. Further work is required to establish the optimum screening strategy, to maximize the early detection of CG without excess false‐positives.
Postbreeding movements and molting ecology of female gadwalls and mallards
Authors: Kohl Jeffrey D. , Casazza Michael L. , Overton Cory T. , Herzog Mark P. , Ackerman Joshua T. , Feldheim Cliff L. , Eadie John M. 
Published: September 2022

AbstractThe wing molt is an important annual life‐history event that occurs in waterfowl and molt site selection can play an important role in determining survival. We tracked postbreeding movements of gadwall (Mareca strepera) and mallard (Anas platyrhynchos) females that bred in the Suisun Marsh (Suisun) of California, USA, to determine molt site selection and wing molt chronology. We attached backpack transmitters with global positioning system and global system for mobile communications (GPS‐GSM) technology to female gadwalls and mallards within Suisun and tracked the birds following the breeding season during 2015–2018. We determined molt locations for 52 female gadwalls and 112 female mallards. Thirty of the marked gadwall females selected 2 regions within southern Oregon‐northeastern California (SONEC) to undergo molt; 16 molted in the Upper Klamath Basin (southern OR) and 14 in the Lower Klamath Basin (northeastern CA). A large portion of female mallards molted in Suisun (n = 34) and the Sacramento Valley in California (n = 31) but also used the Upper Klamath Basin (n = 13), Lower Klamath Basin (n = 12), and the Yolo–Delta region in California (n = 12). On average, gadwalls departed Suisun on 30 July (±17.82 days [SD]), and mallards departed on 24 July (±22.69 days). Mean start date of molt for each species was similar: 27 August (±16.09 days) for gadwalls and 26 August (±21.03 days) for mallards. Molt end date was analogous for each species as well. Molt ended on average 1 October (±15.52 days) for gadwalls and on 5 October (±18.34 days) for mallards. Gadwalls and mallards showed intraspecific differences in average molt start and end date within the 3 main geographical zones: Suisun, Central Valley of California (Central Valley), and SONEC. Mean duration of wing molt for gadwalls was 34.72± 8.62 days and 41.09 ± 12.54 days for mallards. Both species primarily selected permanent marsh to undergo wing molt (gadwalls = 90.4%, mallards = 63.4%). Conservation and active management of these high‐use molting areas used by California's primary breeding waterfowl species could enhance postbreeding survival, leading to increased breeding waterfowl populations.
Columbian sharp‐tailed grouse female and nest survival in northwestern Colorado
Authors: Barker Rachel E. , Apa Anthony D. , Lutz R. Scott 
Published: September 2022

AbstractWildlife management and conservation can be challenging when the demography of a focal species is unknown or limited given that fecundity and adult survival influence population growth. The Columbian sharp‐tailed grouse (Tympanuchus phasianellus columbianus) have been reduced to ≤10% of their former range since the early 1900s. We conducted a 3‐year study (2015–2017) across 4 study sites in northwestern Colorado, USA, to evaluate female hazard and nest survival. We trapped and marked 270 female sharp‐tailed grouse and identified 275 nests for our hazard and survival analyses. Females during the breeding stage of the reproductive season experienced more hazard compared to the nesting and the early and late post‐nesting stages for females without broods. Females experienced a higher degree of hazard during the breeding stage and mortality risk was >3 times higher than the nesting stage, >7 times higher than early post‐nesting (EPN)‐no brood stage, and >5 times higher than the late post‐nesting (LPN)‐unsuccessful stage. Two reproductive season stages (LPN‐successful and EPN‐brood) provided marginal inference. Nest incubation initiation date and nest age best described nest daily survival. Females that initiated incubation of initial nests earlier in the season experienced lower nest daily survival than later in the incubation season. Because female Columbian sharp‐tailed grouse hazard varied among different reproductive season stages, we recommend that wildlife managers develop management actions that reduce hazard during the specific reproductive season stages (i.e., the breeding season). For Columbian sharp‐tailed grouse in Colorado, we recommend that Colorado Parks and Wildlife collaborate with federal farm program agencies to implement a no‐tillage restriction from 1 May through 30 June for active agricultural fields within 2 km of active Columbian sharp‐tailed grouse leks to enhance nest survival.