bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fashion influencers on Instagram: Determinants and impact of opinion leadership on female millennial followers
Authors: Jegham Salma , Bouzaabia Rym 
Published: April 2022

AbstractIn the fashion industry, the effectiveness of influencer marketing, known as “opinion leaders,” via Instagram remains little known to brand managers and scholars despite the frequent use of such a communication strategy by companies in recent years. Likewise, to the best of our knowledge, no study has jointly addressed the determinants of opinion leadership, specifically source and content factors. This article aims to examine the determinants and impact of opinion leadership on Instagram female millennial followers' intention to adopt fashion recommendations. Data was taken from a survey carried out on 280 followers of a fashion Instagram account. Web‐administered questionnaires were used to collect the data, which was processed using an exploratory factor analysis and a structural equation modeling. The findings indicated that perceived credibility, psychological closeness to the influencer, and perceived originality of content affected respectively opinion leadership. Thus, opinion leadership affected positively consumer's intention to follow recommendations. Moreover, it turned out that perceived product‐influencer congruence had no moderating effect on the link between opinion leadership and the followers' intention to follow recommendations. Then, this study contributes to a better understanding of the determinants of opinion leadership and the impact of opinion leaders on promoting fashion products.
New Bioactive Polyacetylenes from the Marine Sponge Petrosia sp.
Authors: Liu Xin‐Lian , Ding Ya‐Fang , Wang Shu‐Ping , Liu Li , Wang Jie , Yang Fan 
Published: April 2022

AbstractThree new polyacetylenes, pellynols P (1), Q (2), and R (3) were isolated from the marine sponge Petrosia sp., along with the known compound pellynol H (4). Their structures were determined by analyses of extensive NMR, HR‐MS, and ESI‐MS/MS data. All compounds displayed potent cytotoxicities against human hepatocellular carcinoma HepG2, human melanoma A375, and human colorectal carcinoma HT29 cell lines with IC50 values at the range of 1.4–4.4 μM.
Getting Chemical and Biochemical Engineers Excited about Additive Manufacturing
Authors: Grinschek Fabian , Ladewig Bradley , Navarrete Munoz Alexander , Klahn Christoph , Dittmeyer Roland 
Published: April 2022

AbstractA new course was designed to attract chemical and bioengineers to additive manufacturing and to provide them with an effective approach to this new field. The goal is a wider use of the advantages of additive manufacturing for complex multifunctional components in chemical process engineering. We describe the structure of the course and the experiences from the first two years. Students show great interest and are able to develop their own functional components with assistance. Yet many have deficits in the use of CAD software, which will be remedied in the future through a specific lecture.
An improved weighted principal component analysis integrated with TOPSIS approach for global financial development ranking problem of Middle East countries
Authors: Heydari Ahmad , Niroomand Sadegh , Garg Harish 
Published: April 2022

AbstractFinancial development means some improvements on providing the information about investment possibilities in a region or country. In this study, a new perspective of financial development is considered which is called the multi‐criteria global financial development‐ranking problem. In this problem, some countries from the Middle East are considered to be ranked according to the criteria of global financial development from the world bank database. Due to high number of criteria that may affect the quality of the obtained ranking negatively, a solution methodology in three stages is proposed. First, as a novelty, an improved version of the weighted principal component analysis (PCA) approach is proposed to select the most important criteria from the initial set of criteria and also determine their importance weights. This approach considers both linear and nonlinear relationships of the data instead of considering just linear relationships. Then using the reduced decision matrix and the obtained importance weight values, the technique for order of preference by similarity to ideal solution multi‐criteria decision approach is used to rank the countries of case study. The computational study is done based on the proposed improved weighted PCA approach and the obtained results are analyzed and compared by those of the classical approaches, for example, some versions of the classical weighted PCA approach.
Oblique Packing and Tunable Excitonic Coupling in DNA‐Templated Squaraine Rotaxane Dimer Aggregates
Authors: Barclay Matthew S. , Wilson Christopher K. , Roy Simon K. , Mass Olga A. , Obukhova Olena M. , Svoiakov Rostyslav P. , Tatarets Anatoliy L. , Chowdhury Azhad U. , Huff Jonathan S. , Turner Daniel B. , Davis Paul H. , Terpetschnig Ewald A. , Yurke Bernard , Knowlton William B. , Lee Jeunghoon , Pensack Ryan D. 
Published: April 2022

AbstractWhen molecules are aggregated such that their excited states form delocalized excitons, their spatial arrangement, or packing, can be coarsely controlled by templating and finely controlled by chemical substitution; however, challenges remain in controlling their packing on intermediate length scales. Here, we use an approach based on mechanically interlocked molecules to promote an elusive oblique packing arrangement in a series of three squaraine rotaxane dimers. We template the squaraine rotaxane dimers using DNA and observe two excitonically split bands of near‐equal intensity in their absorption spectra – a distinct signature of oblique packing, validated by theoretical modeling of the experimental results. Additional fine control of packing is demonstrated by fluorinating the macrocycle of the rotaxane, which promotes denser packing and stronger excitonic interactions.
Can the Production of 2D Crystals be Driven by Differential Temperature? Research with MoS2 as An Example
Authors: Gao Mingyang , Cao Qinzhe , Yang Ao , Gao Qianyi , Zhang Wen , Zhang Mingjia , Zhang Zhiyong 
Published: April 2022

AbstractNumerous ingenious top‐down methods have opened a new door to the extensive research of 2D crystals. In this paper, a novel “differential‐temperature exfoliation technology” is proposed to synthesize 2D few‐layer MoS2. Several characterizations are conducted for discussion. The spectroscopic, optical, and purification capacity of the as‐exfoliated layered structures is further studied systematically. This research provides insights into the novel top‐down production and the related potential for environmental protection of few‐layer MoS2.
Diagnostic strategy of fine needle aspiration cytology of cystic cervical lymph node metastasis from papillary thyroid carcinoma
Authors: Li Qin , Liu Ying , Zhang Guofu , Long Hu , Jiang Yong , Su Xueying 
Published: April 2022

AbstractBackgroundCystic cervical lymph node metastasis from papillary thyroid carcinoma (CLMPTC) initially presents as cervical cystic lesions, which are often underdiagnosed as other cystic cervical lesions. There is no comprehensive diagnostic strategy of fine needle aspiration (FNA) cytology for CLMPTC.MethodsThe clinical and FNA cytomorphology data of 87 patients with CLMPTC were analyzed. Thyroglobulin (TG) immunostaining was performed in 40 cases; BRAF V600E mutation was evaluated in 42 cases; the thyroglobulin (Tg) levels of aspiration fluids were assessed in 46 cases. Correspondingly, the data of 42 cases with solid cervical lymph node metastasis from papillary thyroid carcinoma (SLMPTC) and 32 cases with other cystic cervical lesions were collected as controls.ResultsCompared with SLMPTC, CLMPTC has less classical PTC cytomorphology characteristics—for example, nuclear crowding/overlapping, nuclear irregular contours, etc. (p < .05). Additionally, micropapillary architecture and histiocyte‐like tumor cells were more often observed in CLMPTC than in SLMPTC (p < .01). The positive rate of TG immunocytochemistry in CLMPTC was 100% (40/40). The positive rate of BRAF V600E mutation in CLMPTC was 81.0% (34/42), which was higher than that in SLMPTC (64.3%; 27/42) (p = .087). The Tg levels in aspiration fluids were significantly higher in CLMPTC (all>500 μg/L) than in other cervical cystic lesions (range: 2.9 μg/L to 40.1 μg/L) (p < .01).ConclusionTo reduce underdiagnoses of CLMPTC, a reasonable diagnostic strategy, as summarized in this study is needed: according to the number of tumor cells, choosing immunocytochemistry (TG) and/or thyroglobulin in fine needle aspirates testing as auxiliary diagnostic measures.
Utilization of constructed wetland for the removal of heavy metal through fly ash bricks manufactured using harvested plant biomass
Authors: Barya Mahesh Prasad , Kumar Amit , Thakur Tarun Kumar 
Published: April 2022

AbstractHeavy metal removal by constructed wetland (CWs) is becoming the most efficient and greener technology around the world where plants are used in phytoremediation to degrade, stabilize and remove contaminants from soils, water and waste. The design of CWs for successful phytoremediation in heavy metals contaminated wastewater should not affect the local environment. By‐product generation is another crucial part of phytoremediation's success. In the study, phytoremediation plants (Canna indica and Acorus calamus) biomass has been successfully used in the manufacture of 70 fly‐ash bricks. Further, these bricks are used for CWs to see the efficiency in removing heavy metals pollution. Results found that high rates of Cu (96 %), Zn (95 %), (Fe 93) and Cr (91 %) removal from Canna indica and Acorus calamus were found as compared to the Typha latifoliya, Myriophylhum aquaticum, Ludwigina palustris, Eichhornia crassipes, Schoenoplectus californicus, Cyperus papyrus and Phragmites australis reported by others global researchers which indicates C. indica is the high potential for heavy metal removal and can be strongly used for industrial wastewater. The use of ornamental plants for phytoremediation of contaminated sewage wastewater would also change the landscape of the aquatic environment. This study summarizes viable avenues in the method of using phytoremediation plant biomass for environmental protection and sustainable environmental management.
From fabrication to consolidation of China's political blue‐sky: How can environmental regulations shape sustainable air pollution governance?
Authors: Chu Zhaopeng , Bian Chen , Yang Jun 
Published: April 2022

AbstractPolitical blue sky is unsustainable because conflicting interests in China's fragmented authoritarianism (FA) lead to the failure of air pollution regulations. This study explores how to transform China's political blue sky from short‐term fabrication to long‐term consolidation by effective environmental regulations. A two‐pronged mechanism design in the non‐cooperative tripartite evolutionary game is employed to model the dynamic cost–benefit strategy interactions among the central government, local governments, and polluting enterprises for sustainable air pollution control. Policy simulations are conducted to examine the effectiveness of several environmental regulation instruments for leading to the ideal outcome. In baseline scenarios, proper coordination of environmental inspection, vertical and horizontal transfers, and environmental taxation can impel the game to converge to the desired evolutionary equilibrium. In extended scenarios, three long‐term oriented inspirations—double‐dividend effect of environmental tax revenues, public monitoring, and the Porter hypothesis effect of environmental regulations—can improve the efficiency of environmental regulations compared to baseline scenarios. From a methodology perspective, policy simulation in an evolutionary game framework provides a novel addition to the research toolkit for addressing FA.
EGFR ligands synergistically increase IL‐17A‐induced expression of psoriasis signature genes in human keratinocytes via IκBζ and Bcl3
Authors: Dai Xiuju , Murakami Masamoto , Shiraishi Ken , Muto Jun , Tohyama Mikiko , Mori Hideki , Utsunomiya Ryo , Sayama Koji 
Published: April 2022

AbstractVarious epidermal growth factor receptor (EGFR) ligands are highly expressed in the epidermis of psoriasis lesions, and abnormal EGFR activation appears to be involved in the pathogenesis of psoriasis. However, how EGFR signaling contributes to the development of psoriasis is unclear. Interleukin (IL)‐17A, a critical effector of the IL‐23/IL‐17A pathway, increases the expression of psoriasis signature genes in keratinocytes and plays an essential role in the pathogenesis of psoriasis by inducing IκBζ, a critical transcriptional regulator in psoriasis. In this study, we stimulated primary human keratinocytes with IL‐17A and various EGFR ligands to investigate whether EGFR ligands regulate the expression of psoriasis signature genes. In cultured normal human keratinocytes and a living skin equivalent, EGFR ligands did not induce psoriasis‐related gene expression, but significantly enhanced the IL‐17A‐mediated induction of various psoriasis signature genes, including antimicrobial peptides, cytokines, and chemokines. This was dependent on an EGFR activation‐mediated synergistic increase in IL‐17A‐induced IκBζ expression and was partially mediated by the EGFR‐dependent upregulation of Bcl3. Therefore, EGFR ligands can act as synergistic agents of IL‐17A signaling by stimulating the epidermal production of psoriasis signature genes in psoriasis lesions. This study reveals a potential mechanism by which EGFR signaling contributes to the pathogenesis of psoriasis.
A Bispidine Based CuII/ZnII Heterobimetallic Coordination Polymer
Authors: Lippi Martina , Wadepohl Hubert , Comba Peter , Cametti Massimo 
Published: April 2022

AbstractThe metalloligand approach was used to obtain a novel CuII/ZnII heterobimetallic coordination polymer (CP) 1, based on the carefully designed bispidine ligand L4. CP 1, characterized by single crystal (SC‐) and powder X‐ray diffraction methods (P‐XRD), is constituted by repeating large 32‐membered macrocycles forming ribbon‐like linear arrays and it features a CuII‐coordination site occupied by a markedly labile MeCN. We also describe the synthesis and characterization of intermediate metalloligands (with CuII, FeIII, MnII, and PdII, the latter three obtained as SCs and characterized accordingly) and provide a view of potential intermediate species along the route from metalloligands to heterometallic CPs.
Hydrolytic Stability of Hydroxyphenyl Boronic Acids(HPBAs) and Employment of Poly(HPBAs) for Voltammetric Determination of Fluoride Levels in Dental Formulations and Beverages; Significance of Raw DPV Data for Chemometric Discrimination
Authors: Gulay Der Fatma , Yalcin Gorkem , Ozcan Bulbul Ece , Ileri Hakan , Cihan Betul , Gokcan Miray , Can Esitmez Yekta , Kilinc Emrah 
Published: April 2022

AbstractPhysicochemical and electrochemical properties of hydroxyphenyl boronic acids(HPBAs) and their use in fluoride determinations were investigated. HPBAs were electropolymerized at pH 1.0–11.0 in 40–60 %(v/v) methanol‐buffer. Differential pulse voltammetry(DPV) determinations of fluoride (with 1.0×10−5–1.0×10−4 M linearity based on potential shift) using poly(HPBAs) glassy carbon electrodes(GCEs) have −45.49 to +34.40 % error range. Significance of raw DPV data for chemometric discrimination was investigated by principle component analysis. This is the first demonstration of fluoride determination with poly(HPBAs)GCEs and chemometric discrimination of pharmaceutical formulations so far. Due to the lack of experimental data in literature, current findings will make a contribution to literature.
Improving piecewise linear snow density models through hierarchical spatial and orthogonal functional smoothing
Authors: White Philip A. , Keeler Durban G. , Sheanshang Daniel , Rupper Summer 
Published: April 2022

AbstractSnow density estimates as a function of depth are used for understanding climate processes, evaluating water accumulation trends in polar regions, and estimating glacier mass balances. The common and interpretable physically derived differential equation models for snow density are piecewise linear as a function of depth (on a transformed scale); thus, they can fail to capture important data features. Moreover, the differential equation parameters show strong spatial autocorrelation. To address these issues, we allow the parameters of the physical model, including random change points over depth, to vary spatially. We also develop a framework for functionally smoothing the physically motivated model. To preserve inference on the interpretable physical model, we project the smoothing function into the physical model's spatially varying null space. The proposed spatially and functionally smoothed snow density model better fits the data while preserving inference on physical parameters. Using this model, we find significant spatial variation in the parameters that govern snow densification.
Comparing executive functions profiles in anorexia nervosa and autism spectrum disorder in adolescence
Authors: Ghiotto Clément , Silva Catarina , Charvin Isabelle , Atzori Paola , Givaudan Marion , Da Fonseca David , Bat‐Pitault Flora 
Published: April 2022

AbstractObjectiveExecutive functions (EFs) inefficiencies in anorexia nervosa (AN), especially in set‐shifting and central coherence, suggest a link between AN and autism spectrum disorders (ASDs). This study aimed at comparing EF profiles in AN and ASD, and investigating clinical variables associated with the identified EF difficulties.MethodOne hundred and sixty‐two adolescents with AN or ASD completed self‐report questionnaires assessing depression, anxiety and autism symptoms. Parents completed the behaviour rating of executive functions parent‐form (BRIEF‐P). Besides comparing EFs in AN and ASD, we also analysed clinical variables scoring below and above the mean age score across the all sample. We additionally examined the relationship between clinical variables and the BRIEF‐P indexes in AN.ResultsParticipants with ASD had greater EF difficulties than participants with AN on all BRIEF‐P scales. In the whole sample, higher autistic features were related to poorer EF. In AN, lower body mass index and particularly higher autism‐spectrum quotient (BRI: Beta = 0.55; p < 0.001 and GEC: Beta = 0.50; p < 0.001) were most strongly associated with poorer EF.ConclusionAlthough participants with ASD showed greater difficulties, autistic traits were related to alter EFs in AN. Exploring further this dimension can undeniably allow better adaptive cognitive remediation programs.
Professor Kenneth John Gregory (1938–2020): The career, contributions and legacy of an eminent geographer and fluvial geomorphologist
Authors: Gurnell Angela , Downs Peter , Tooth Stephen , Wharton Geraldene 
Published: April 2022

AbstractThis paper provides the editorial to accompany a Special Issue of Earth Surface Processes and Landforms produced to honour the memory of Professor Ken Gregory, a key figure in late 20th‐ and early 21st‐century geography and geomorphology. It provides an overview of Ken Gregory's career in research, teaching, and university administration, and elaborates on his key research contributions and legacy across geography and geomorphology. Ten interrelated research themes are identified where Ken made particular impacts: (1) river catchment processes and process–form relationships; (2) wood in rivers; (3) anthropogenic impacts on rivers and catchments; (4) approaches to river management that better respect natural processes; (5) public perceptions of rivers; (6) quantitative palaeohydrology; (7) chronology of river floods and deposits; (8) key physical geography/geomorphology concepts and their metrics; (9) the nature of the discipline of physical geography; and (10) concepts in physical geography teaching. These themes provide a framework to introduce the papers in this Special Issue. Through his publications, leadership style, personality, and positive influence on the many people with whom he interacted, Ken Gregory has left a legacy that will continue to inspire present and future generations of geographers and geomorphologists.
Interference mitigation in multiuserWDM VLCsystems using differential receiver
Authors: Younus Safwan Hafeedh 
Published: April 2022

AbstractTo eliminate the interference between wavelength division multiplexing (WDM) channels in multiuser visible light communication systems, we proposed a differential detection. Four colors laser diodes are utilized as transmitters (Txs). Three colors (channels) are used to send the data and one color is used to convey a control signal in each Tx. The control signal is applied to find the best Tx for each user and to find the level of interference of each WDM data channel. The optical receiver has six photodetectors (PDs). Three PDs receive the data and three PDs receiver control signals. Each optical receiver has three differential amplifiers. The input of each differential amplifier is the difference between the output of two PDs (one PD captures the data and interfering signals and one PD captures control signals). Thus, the amount of the interference that is calculated by the control signals of each color will be removed from each WDM data signal by the differential amplifier. Six users are assumed in our proposed system and each user is allocated one Tx. In this work, reflections up to the third order and mobility of the user are considered while using a simple wide field of view receiver.
Association between stressful life events and grey matter volume in the medial prefrontal cortex: A 2‐year longitudinal study
Authors: Ringwald Kai G. , Pfarr Julia‐Katharina , Stein Frederike , Brosch Katharina , Meller Tina , Thomas‐Odenthal Florian , Meinert Susanne , Waltemate Lena , Breuer Fabian , Winter Alexandra , Lemke Hannah , Grotegerd Dominik , Thiel Katharina , Bauer Jochen , Hahn Tim , Jansen Andreas , Dannlowski Udo , Krug Axel , Nenadić Igor , Kircher Tilo 
Published: April 2022

AbstractStressful life events (SLEs) in adulthood are a risk factor for various disorders such as depression, cancer or infections. Part of this risk is mediated through pathways altering brain physiology and structure. There is a lack of longitudinal studies examining associations between SLEs and brain structural changes. High‐resolution structural magnetic resonance imaging data of 212 healthy subjects were acquired at baseline and after 2 years. Voxel‐based morphometry was used to identify associations between SLEs using the Life Events Questionnaire and grey matter volume (GMV) changes during the 2‐year period in an ROI approach. Furthermore, we assessed adverse childhood experiences as a possible moderator of SLEs‐GMV change associations. SLEs were negatively associated with GMV changes in the left medial prefrontal cortex. This association was stronger when subjects had experienced adverse childhood experiences. The medial prefrontal cortex has previously been associated with stress‐related disorders. The present findings represent a potential neural basis of the diathesis‐stress model of various disorders.