bluuebunny/crossref_metadata_2025_split huggingface dataset:
α‐MnO2‐Sensitized SrCO3−Sr(OH)2 Supported on Two‐Dimensional Carbon Composites as Stable Electrode Material for Asymmetric Supercapacitor and Oxygen Evolution Catalysis
Authors: Gowrisankar Aruchamy , Selvaraju Thangavelu 
Published: April 2022

AbstractWe developed α‐MnO2‐sensitized SrCO3−Sr(OH)2 supported on amine functionalized reduced graphene oxide (rGO) nanosheets (denoted as MSSG) to understand the energy storage and the electrocatalytic properties. Three different nanocomposites with the tuned Mn precursors such as 0.625, 1.25 and 2.5 mmol, were prepared and denoted as MSSG‐1, MSSG‐2 and MSSG‐3, respectively and loaded on the electrode's surface. Among the nanocomposites loaded electrodes, MSSG‐1 loaded electrodes exhibit a maximum specific capacitance (Csp) of 792 F/g at 3.5 A/g current density and is morphologically stable even after 5000 cycles with a retention level of 95.9 %. With this outcome, the assembled asymmetric supercapacitor (AASC) device is mechanized effectively to power the light emitting diodes (LEDs) for 62 s continuously. In addition, the prepared electrode materials were examined for oxygen evolution reaction (OER) for enhanced electrocatalytic performance with low overpotential (346 mV at 10 mA cm−2 current density) and Tafel slope (97 mV Dec−1). In addition, the long‐term durability study represents a stable performance of the loaded electrode lasting up to 72 h. Notably, the mesoporous nanostructures at the electrode surface offer an effective synergistic effect between SrCO3−Sr(OH)2 supported on NH2‐functionalized rGO nanosheets (SSG) and α‐MnO2.
Poor prognostic factors of Sézary syndrome: A retrospective single‐center study from Japan
Authors: Mizuno Yuka , Miyagaki Tomomitsu , Suga Hiraku , Kamijo Hiroaki , Boki Hikari , Kawana Yuki , Oka Kenta , Hisamoto Teruyoshi , Oka Tomonori , Takahashi‐Shishido Naomi , Sugaya Makoto , Sato Shinichi 
Published: April 2022

AbstractObjectivesAlthough the prognosis of Sézary syndrome (SS) is highly unfavorable, the prognostic factors have not been fully understood. In this study, we tried to investigate the prognostic factors in Japanese SS patients for the first time.MethodsWe performed a retrospective cohort study of 19 SS patients who visited our hospital between January 1, 1999, and December 31, 2019. The collected clinical findings were age, gender, performance status (PS), and TNMB staging at diagnosis. TNMB staging was determined according to the International Society for Cutaneous Lymphomas and the cutaneous task force of the European Organization of Research and Treatment of Cancer criteria. The collected hematological findings were serum levels of soluble IL‐2 receptor (sIL‐2R), lactate dehydrogenase (LDH), thymus and activation‐regulated chemokine (TARC), and immunoglobulin E (IgE), Sézary cell count, Sézary cell ratio among white blood cells, and eosinophil count in peripheral blood at diagnosis.ResultsWe analyzed the correlations between overall survival and various clinical and hematological findings. In the log‐rank test, PS1‐3, N2‐3 stage, higher serum levels of LDH (≥355 IU/L), sIL‐2R (≥1729 U/ml) and TARC (≥19,867 pg/ml), and higher Sézary cell count (≥7480/μl) and Sézary cell ratio among white blood cells (≥52%) at diagnosis were associated with decreased overall survival.ConclusionsThis is the first report evaluating prognostic factors in Asian SS patients. This study may contribute to selecting the treatment strategy and improving survival and quality of life of Asian SS patients.
Corrigendum and Addendum: Identification of the Polaron Measure I: Fixed Coupling Regime and the Central Limit Theorem for Large Times
Authors: Mukherjee Chiranjib , Varadhan S. R. S. 
Published: April 2022

AbstractThe proof of [7, theorem 4.8] for large coupling constant α has a gap (while the proof remains correct for small α). We correct this error by giving a direct proof of [7, theorem 4.8], which holds for any coupling parameter α > 0. Consequently, the main results of [7] on existence and identification of the Polaron measure and its CLT now hold for any α > 0. © 2022 The Authors. Communications on Pure and Applied Mathematics published by Wiley Periodicals LLC.
A privacy preserving data aggregation and query for metro passenger flow via mobile crowdsensing
Authors: Zhang Yuanyuan , Ying Zuobin , Zhao Bowen , Chen Chun Lung Philip 
Published: April 2022

SummaryWith the popularity of mobile Internet networks and mobile terminal equipment, mobile crowdsensing (MCS) has become a popular and economical way of data collection, sharing, and query services. However, the existing privacy‐preserving query schemes MCS‐based less consider the sensing user's privacy leakage at data aggregation phase and querier's privacy leakage at query service phase simultaneously. In this article, we propose a novel privacy‐preserving aggregation and query scheme applied in metro passenger flow via MCS, which achieves the metro passenger flow acquisition and query service and protects the sensing user's identity and location privacy as well as the querier's query privacy. We exploit Paillier cryptosystem and pseudonym mechanism to prevent the privacy leakage, and utilize secure kNN algorithm to protect the query privacy. Meanwhile, we achieve the sensing user accountability based on digital signature algorithm and credible management. The privacy analysis demonstrates that our scheme satisfies the privacy‐preserving and security requirements. The performance evaluation and experimental result show the efficiency of our scheme in practice.
High Median Utility Itemset Mining for recovering streaming window transaction using novel Modified Heap‐based Optimization
Authors: Kumar Ponna Mahesh , Srinivasa Rao P. 
Published: April 2022

AbstractHigh utility itemsets (HUIs) are items in the dynamically streaming transaction list that generate a high‐profit margin. Many of the real‐time applications depend on finding HUIs from the transaction list. However, HUI mining is time‐consuming and results in high complexity due to memory requirements, a large search space, and the cost of HUI estimation. To overcome these issues we have proposed a novel High Median Utility Itemset Mining (HMUIM) approach. This approach utilizes the HMUI‐Miner which effectively ignores the unnecessary itemsets, that is, items with less profit, and mines the HUIs from the database. Furthermore, it has the limitation of deleting the transaction list based on the sliding window size used while conducting a dynamic streaming dataset. To tackle this issue we proposed a novel Modified Heap‐based Optimizer (MHBO) algorithm which effectively copies the HUIs transaction list and preserves it for further process. The MHBO is the combination of Heap Based Optimizer and nine fuzzy rules. The fuzzy rules are used to analyze the priority of the transaction list and based on that it ignores the transaction list with low priorities. Experimental analysis is performed for the proposed method on the real‐time dataset and compared with HUI and HAUIM approaches. The proposed method reduces the execution time and memory usage based on the minimum threshold. Meanwhile, the proposed MHBO approach is compared with iMEFIM, REX, and FCHUIM state‐of‐art works based on the sliding window concept. The execution time to store the replicated copies of original data is less for our proposed method.
The differential impacts of coercive pressure from environmental law and proactive environmental strategy on corporate environmental performance: The case study of a pulp and paper company
Authors: Gu Fangyu , Xie Yu 
Published: April 2022

AbstractPulp and paper companies are characterized by high‐energy consumption and high‐emission in production, placing a heavy burden on the environment. Exploring ways to improve their environmental performance is urgently needed. External coercive pressure from environmental law and internal proactive environmental strategy both enable companies to perform better, but little is known about the difference between them. To close this knowledge gap, our analysis is conducted on a case company in pulp and paper industry to compare the differential impacts of the New Environmental Protection Law of China and the proactive environmental strategy on its environmental performance. In addition, accurately evaluating the environmental performance of pulp and paper companies is essential while research on this topic is scant. Therefore, a novel environmental performance evaluation system for pulp and paper companies (EPESPP) is constructed, including not only internal but also external evaluation indexes based on news reports of various media measured by SNOWNLP sentiment analysis. According to the system, the environmental performance of the case company from 2010 to 2018 is evaluated by the entropy‐weight‐based catastrophe progression method (EWCPM). The results of our case study show that the implementation of a proactive environmental strategy is more conducive to comprehensively improving corporate environmental performance. In other words, the driving effect of the New Environmental Protection Law is not as strong as that of the proactive environmental strategy.
A single‐phase q‐source AC‐AC converter with continuous input current, safe commutation feature, and reduced bidirectional switch counts
Authors: Abdoli Iman , Mosallanejad Ali 
Published: April 2022

AbstractThis paper proposes a single‐phase q‐source AC‐AC converter with a wide and flexible voltage gain. The converter only incorporates two bidirectional power switches. This new topology has many bold features like continuous input current, non‐inverting boost, and inverting buck modes. The high voltage gain is achieved by utilizing a coupled inductor in the converter. The converter gain is increased by the turns ratio of the coupled inductor proportionately. The proposed q‐source comprises one input inductor, one coupled inductor, and one capacitor, which are less than other competitors. In order to reduce the voltage and current stresses on power semiconductors, a safe commutation strategy for the converter is also introduced that eliminates snubber circuits. The input and output filters are no longer required due to the proposed converter specifications. So the volume and cost of the converter are decreased significantly. The achieved efficiency equals 94.5% due to utilizing the proposed optimized topology and switching strategy. In this paper, the operating principle of the converter is presented in detail. An experimental prototype has been designed to examine the performance of the suggested converter. Results confirm the theory and operation of the proposed topology.
The anisotropic plasma wave in the plasma turbulence
Authors: Khodadadi Azadboni Fatemeh 
Published: April 2022

AbstractIn this paper, the influence of plasma turbulence due to the sheared and body stress flow on the dispersion characteristics of the transverse electromagnetic modes in strongly coupled plasma is analysed. Using kinetic theory and solving the scattering relationship for the Vlasov‐Maxwell system, the influence of plasma turbulence on the growth of the electromagnetic mode is investigated. The minimum value of the stress rate threshold for the growth rate of electromagnetic instability in the linear polarization is higher than that of circular polarization. It is shown that the instability growth rate maximum for the circular polarization is about 100 times higher than that of the linear polarization. In the circular polarization, the value minimum of the shear stress is 1.2 times the minimum volume of the body stress. For the linear polarization, the value minimum of the body stress is 1.5 times the minimum volume of the shear stress. Increasing the density gradient of plasma leads to a higher stress threshold rate, and the range of propagation angles of growing modes is limited. With increasing steps of the density gradient plasma in the low‐density corona, electromagnetic instability occurs at a higher stress flow.
Real‐time electrochemical screening of cocaine in lab and field settings with automatic result generation
Authors: de Jong Mats , Van Echelpoel Robin , Langley Amelia R. , Eliaerts Joy , van den Berg Jorrit , De Wilde Mark , Somers Norbert , Samyn Nele , De Wael Karolien 
Published: April 2022

AbstractThis work presents the results of a novel application for the fast on‐site screening of cocaine and its main cutting agents in suspicious and confiscated samples. The methodology behind the novel application consists of portable electrochemical detection coupled with a peak recognition algorithm for automated result output generation, validated both in laboratory and field settings. Currently used field tests, predominantly colorimetric tests, are lacking accuracy, often giving false positive or negative results. This presses the need for alternative approaches to field testing. By combining portable electrochemical approaches with peak recognition algorithms, an accuracy of 98.4% concerning the detection of cocaine was achieved on a set of 374 powder samples. In addition, the approach was tested on multiple “smuggled,” colored cocaine powders and cocaine mixtures in solid and liquid states, typically in matrices such as charcoal, syrup, and clothing. Despite these attempts to hide cocaine, our approach succeeded in detecting cocaine during on‐site screening scenarios. This feature presents an advantage over colorimetric and optical detection techniques, which can fail with colored sample matrices. This enhanced accuracy on smuggled samples will lead to increased efficiency in confiscation procedures in the field, thus significantly reducing societal economic and safety concerns and highlighting the potential for electrochemical approaches in on‐the‐spot identification of drugs of abuse.
Between a rock and a hard place: Regulation of mineralization in the periodontium
Authors: Andras Natalie L. , Mohamed Fatma F. , Chu Emily Y. , Foster Brian L. 
Published: April 2022

SummaryThe periodontium supports and attaches teeth via mineralized and nonmineralized tissues. It consists of two, unique mineralized tissues, cementum and alveolar bone. In between these tissues, lies an unmineralized, fibrous periodontal ligament (PDL), which distributes occlusal forces, nourishes and invests teeth, and harbors progenitor cells for dentoalveolar repair. Many unanswered questions remain regarding periodontal biology. This review will focus on recent research providing insights into one enduring mystery: the precise regulation of the hard‐soft tissue borders in the periodontium which define the interfaces of the cementum–PDL–alveolar bone structure. We will focus on advances in understanding the molecular mechanisms that maintain the unmineralized PDL “between a rock and a hard place” by regulating the mineralization of cementum and alveolar bone.
Dehydroepiandrosterone status and efficacy of dehydroepiandrosterone supplementation for bone health in anorexia nervosa: A systematic review and meta‐analysis
Authors: Lin James , Kao Ting‐Wan , Cheng Ying‐Chih , Fan Kang‐Chih , Huang Yu‐Chen , Liu Che‐Wei 
Published: April 2022

AbstractObjectiveThis study was designed to determine the status of dehydroepiandrosterone (DHEA) in women with anorexia nervosa (AN) and to assess the efficacy of DHEA supplementation as a treatment for bone health in women with AN.MethodStudies were retrieved from the PubMed, Embase, Cochrane Library, MEDLINE, and Scopus databases from inception to February 14, 2022. Observational studies that compared serum DHEA levels between women with AN and healthy controls were included for meta‐analysis, and randomized controlled trials (RCTs) that evaluated the effects of DHEA supplementation on bone mass were reviewed.ResultsMeta‐analysis of 15 cross‐sectional studies revealed that patients with AN had significantly elevated serum DHEA levels (mean difference (MD) = 311.63 ng/dl; 95% confidence interval (CI), 78.01–545.25) and reduced DHEAS levels (MD = −24.90 μg/dl; 95% CI, −41.72 to −8.07) compared with healthy controls. A systematic review of seven RCTs found that DHEA monotherapy does not improve bone mineral density (BMD) compared with placebo after adjusting for weight gain. While the combination of DHEA and conjugated oral contraceptives has led to increased bone strength and decreased bone loss, the beneficial effect appears to be limited to older adolescents and adults with closed physes. Potential detrimental effects on BMD were identified in younger adolescents with open physes in one study.DiscussionDue to the lack of apparent benefit of DHEA in women with AN and its potential detrimental effect on BMD in young patients with AN, current evidence does not support the use of DHEA.Public SignificanceThis study demonstrates that women with anorexia nervosa have abnormal levels of dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS), which have been suggested by previous studies to play a role in the development of low bone density in this condition. However, current evidence does not support the use of DHEA as a treatment to preserve bone health in patients with anorexia nervosa given the lack of clear benefit following its use and also because of a potential detrimental effect on bone mineral density in young patients with anorexia nervosa.
The ecological importance of moss ground cover in dry shrubland restoration within an irrigated agricultural landscape matrix
Authors: Dollery Rebecca , Bowie Mike H. , Dickinson Nicholas M. 
Published: April 2022

Abstract

Kānuka (Kunzea serotina, Myrtaceae) dryland shrubland communities of the lowland plains of South Island (Te Wai Pounamu), New Zealand (Aoteoroa), contain a ground cover largely consisting of mosses, predominantly Hypnum cupressiforme. There has been no previous study of the role of mosses in this threatened habitat which is currently being restored within a contemporary irrigated and intensively farmed landscape that may be incompatible with this component of the ecosystem.

The aim of the present study was to investigate the influence of moss ground cover on hydrology, nitrogen (N) availability and vascular plant interactions, and in relation to nutrient spillover from adjacent farmland. Experimental work was a combination of glasshouse experiments and field‐based studies.

Extremes of soil temperature and moisture were found to be mediated by the moss carpet, which also influenced N speciation; available N declined with moss depth. The moss layer decreased the amount of germination and establishment of vascular plants but, in some cases, enhanced their growth. Spillover of mineral nitrogen and phosphate from farmland enhanced invasion of exotic grasses which may have benefited from conditions provided by the moss carpet.

Synthesis: We found the moss layer to be crucial to ecosystem functioning in these dry habitats with low nutrient substrate. However, when the moss layer is accompanied by nutrient spillover, it has the potential to increase exotic weed encroachment. Our results not only emphasize the importance of non‐vascular plant inclusion in restoration schemes but also highlights the importance of mitigating for nutrient spillover.
A natural experiment identifies an impending ecological trap for a neotropical amphibian in response to extreme weather events
Authors: Clark Morgan A. , Ota William M. , Smith Sierra J. , Muramoto Brett K. , Ngo Summer , Chan Gabriella E. , Kenyon Maxwell A. , Sturtevant Matthew C. , Diamond Max G. , Bucciarelli Gary M. , Kats Lee B. 
Published: April 2022

AbstractExtreme weather events are predicted to increase as a result of climate change, yet amphibian responses to extreme disturbance events remain understudied, especially in the Neotropics. Recently, an unprecedented windstorm within a protected Costa Rican rainforest opened large light gaps in sites where we have studied behavioral responses of diurnal strawberry poison frogs (Oophaga pumilio) to ultraviolet radiation for nearly two decades. Previous studies demonstrate that O. pumilio selects and defends perches where ultraviolet radiation (UV‐B) is relatively low, likely because of the lethal and sublethal effects of UV‐B. In this natural experiment, we quantified disturbance to O. pumilio habitat, surveyed for the presence of O. pumilio in both high‐disturbance and low‐disturbance areas of the forest, and assessed UV‐B levels and perch selection behavior in both disturbance levels. Fewer frogs were detected in high‐disturbance habitat than in low‐disturbance habitat. In general, frogs were found vocalizing at perches in both disturbance levels, and in both cases, in significantly lower UV‐B levels relative to ambient adjacent surroundings. However, frogs at perches in high‐disturbance areas were exposed to UV‐B levels nearly 10 times greater than males at perches in low‐disturbance areas. Thus, behavioral avoidance of UV‐B may not reduce the risks associated with elevated exposure under these novel conditions, and similarly, if future climate and human‐driven land‐use change lead to sustained analogous environments.
Phenotypic plasticity and genetic diversity elucidate rarity and vulnerability of an endangered riparian plant
Authors: Boyd Jennifer Nagel , Odell Jared , Cruse‐Sanders Jennifer , Rogers Will , Anderson Jill T. , Baskauf Carol , Brzyski Jessica 
Published: April 2022

AbstractEnvironmental change, accelerated by anthropogenic activities, threatens many species and can be especially challenging for rare species given their potentially limited capacity for migration and adaptation relative to more common species. The ability to acclimate via phenotypic plasticity could provide an important path to species persistence in the face of such change. We investigated the responses of an endangered plant species endemic to a highly dynamic riparian habitat in southeastern Tennessee, USA, and its most widespread congener to environmental change to elucidate their current statuses and future vulnerability. Specifically, we compared the population‐ and species‐level plasticity of rarePityopsis ruthiiand commonP. graminifoliato contrasting light, temperature, and water conditions in a growth chamber experiment to evaluate their potential to acclimate to environmental change. Contrary to our expectations,P. ruthiihad greater phenotypic plasticity than its common congener in response to both altered light and water availability. But this plasticity was not associated with increased fitness, suggesting that it was not adaptive. Concurrently, we genotyped these individuals at nine putatively neutral microsatellite loci to contrast genetic diversity across the range of each species. As expected,P. ruthiiexhibited reduced genetic diversity relative to its more common congener. Overall, our findings accord with the narrow range and current habitat specificity ofP. ruthii, especially its tolerance of highly variable water, and highlight its potential vulnerability to future environmental change.