bluuebunny/crossref_metadata_2025_split huggingface dataset:
Egg Hatching, Stocking, Larval Feeding, and Handling Mortality of Guinean Fingerfish Monodactylus sebae
Authors: Elefante Daniel J. , Ohs Cortney L. , Grabe Scott W. 
Published: February 2022

Abstract
Experiments were conducted on Guinean Fingerfish Monodactylus sebae to evaluate egg and larval stocking densities, stocking methods, water quality effects on egg hatching success, and the effects of different live food organisms on larval growth and survival. Egg hatching percentage was determined for four egg stocking densities (10, 20, 30, and 40 eggs/L). The lowest stocking density, 10 eggs/L, had a significantly higher mean hatching percentage (65.0 ± 18.54%) than the 30- and 40-eggs/L treatments but did not vary significantly from the 20-eggs/L treatment. Eggs were incubated in salinities of 0, 5, 10, 15, 20, 30, 40, 45, and 50 g/L to evaluate the effect on hatching success. The hatching success was over 70% for salinities of 0–30 g/L. The highest hatching success (98%) occurred in the 5-g/L treatment, and the 40- and 50-g/L treatments had significantly lower hatching success than all other treatments. Three live food organisms were fed to larvae to determine effects on growth and survival over a 9-d period. Diets were enriched rotifers Brachionus plicatilis, nauplii of the copepod Parvocalanus crassirostris, and nauplii of the copepod Pseudodiaptomus pelagicus fed at equal densities of 10 organisms/mL once daily. Larvae were stocked at 20 fish/L. At 9 d posthatch (dph), survival was not significantly different among treatments and larvae fed P. pelagicus had a significantly longer SL (mean ± SD = 4.28 ± 0.42 mm). Larvae were netted and exposed to air as a stressor at 6, 14, 22, 30, 38, and 46 dph for durations of 30, 60, 120, and 240 s. The 30-dph treatment had the lowest survival among all treatments regardless of experimental duration, followed by the 38-dph treatment. Results suggest that to avoid high handling mortality, Guinean Fingerfish should not be handled during metamorphosis (30–38 dph).
Trendbericht Anorganik 2022 Teil 1: Hauptgruppen
Authors: Fischer Malte , Heift Dominikus 
Published: February 2022

AbstractMolekülchemie: Calcium bändigt Distickstoff, niedervalente Verbindungen in ungewöhnlichen Oxidationsstufen bestimmen das Geschehen, Koordinationsgeometrien kratzen an bisher für unmöglich Gehaltenem. Nebengruppen‐ und Koordinationschemie: aktivierter Distickstoff und die erste Reihe der Übergangsmetalle als Photosensibilisatoren.
γ‐aminobutyric acid measurement in the human brain at 7 T: Short echo‐time or Mescher–Garwood editing
Authors: Lim Song‐I , Xin Lijing 
Published: February 2022

The purposes of the current study were to introduce a Mescher–Garwood (MEGA) semi‐adiabatic spin‐echo full‐intensity localization (MEGA‐sSPECIAL) sequence with macromolecule (MM) subtraction and to compare the test–retest reproducibility of γ‐aminobutyric acid (GABA) measurements at 7 T using the sSPECIAL and MEGA‐sSPECIAL sequences. The MEGA‐sSPECIAL editing scheme using asymmetric adiabatic and highly selective Gaussian pulses was used to compare its GABA measurement reproducibility with that of short echo‐time (TE) sSPECIAL. Proton magnetic resonance spectra were acquired in the motor cortex (M1) and medial prefrontal cortex (mPFC) using the sSPECIAL (TR/TE = 4000/16 ms) and MEGA‐sSPECIAL sequences (TR/TE = 4000/80 ms). The metabolites were quantified using LCModel with unsuppressed water spectra. The concentrations are reported in institutional units. The test–retest reproducibility was evaluated by scanning each subject twice. Between‐session reproducibility was assessed using coefficients of variation (CVs), Pearson's r correlation coefficients, and intraclass correlation coefficients (ICCs). Intersequence agreement was evaluated using Pearson's r correlation coefficients and Bland–Altman plots. Regarding GABA measurements by sSPECIAL, the GABA concentrations were 0.92 ± 0.31 (IU) in the M1 and 1.56 ± 0.49 (IU) in the mPFC. This demonstrated strong between‐session correlation across both regions (r = 0.81, p < 0.01; ICC = 0.82). The CVs between the two scans were 21.8% in the M1 and 10.2% in the mPFC. On the other hand, the GABA measurements by MEGA‐sSPECIAL were 0.52 ± 0.04 (IU) in the M1 and 1.04 ± 0.24 (IU) in the mPFC. MEGA‐sSPECIAL demonstrated strong between‐session correlation across the two regions (r = 0.98, p < 0.001; ICC = 0.98) and lower CVs than sSPECIAL, providing 4.1% in the M1 and 5.8% in the mPFC. The MEGA‐editing method showed better reproducibility of GABA measurements in both brain regions compared with the short‐TE sSPECIAL method. Thus it is a more sensitive method with which to detect small changes in areas with low GABA concentrations. In GABA‐rich brain regions, GABA measurements can be achieved reproducibly using both methods.
Arbitrarily high‐order accurate and energy‐stable schemes for solving the conservative Allen–Cahn equation
Authors: Guo Feng , Dai Weizhong 
Published: February 2022

AbstractIn this paper, three high‐order accurate and unconditionally energy‐stable methods are proposed for solving the conservative Allen–Cahn equation with a space–time dependent Lagrange multiplier. One is developed based on an energy linearization Runge–Kutta (EL–RK) method which combines an energy linearization technique with a specific class of RK schemes, the other two are based on the Hamiltonian boundary value method (HBVM) including a Gauss collocation method, which is the particular instance of HBVM, and a general class of cases. The system is first discretized in time by these methods in which the property of unconditional energy stability is proved. Then the Fourier pseudo‐spectral method is employed in space along with the proofs of mass conservation. To show the stability and validity of the obtained schemes, a number of 2D and 3D numerical simulations are presented for accurately calculating geometric features of the system. In addition, our numerical results are compared with other known structure‐preserving methods in terms of numerical accuracy and conservation properties.
Social media analytics for nonprofit marketing: #Downsyndrome on Twitter and Instagram
Authors: Bernardi Chiara L. , Alhamdan Nouf 
Published: February 2022

AbstractIntroductionSocial media listening and monitoring of user‐generated content (UGC) in commercial marketing is central to measuring social media users' perceptions of a brand or company. Applications of social media analytics (SMA) have become common practice in marketing and are employed to predict consumer behavior. However, critical reflections on SMA applications to nonprofit marketing are lacking, despite the increased usage of SMA by nonprofit organizations.ObjectiveThe article proposes to apply SMA to analyze UGC and identify how computational methodologies can help bolster strategic communication for nonprofit organizations and drive marketing strategy.MethodologyThe article presents results from a 2‐year (October 2017–January 2020) social media monitoring of the hashtag #DownSyndrome on Twitter and Instagram. SMA tools will be used. Specifically, sentiment analysis and topic modeling are employed to analyze tweets and Instagram posts, while image classification is used to analyze Instagram images.FindingsThe results highlight a strong stereotypical characterization of people with Down syndrome in content that is generated by social media users and identify possibilities and challenges ahead of nonprofit organizations pushing specific agendas.Originality and ContributionThis study is the first to offer a review of SMA, apply them to a nonprofit context and reflect on aspects of representation and stereotypization through them. It ultimately proposes to support nonprofit and voluntary marketing research and practice by integrating UGC research and computational techniques into the broader discussion of ethical content strategy in social media nonprofit marketing.
Application of Guar Gum and its Derivatives as Green Binder/Separator for Advanced Lithium‐Ion Batteries
Authors: Kaur Simran , Santra Soumava 
Published: February 2022

AbstractSince their first commercialization in the 1990s,lithium‐ion batteries (LIBs) have become an indispensible part of our everyday life in particular for portable electronic devices. LIBs have been considered as the most promising sustainable high energy density storage device. In recent years, there is a strong demand of LIBs for hybrid electric and electric vehicles to lower carbon footprint and mitigate climate change. However, LIBs have several issues, for example, high cost and safety issues such as over discharge, intolerance to overcharge, high temperature operation etc. To address these issues several new types of electrodes are being studied. Traditional binder PVDF is costly, difficult to recyle, undergoes side reactions at high temperature and cannot stabilize high energy density electrodes. To overcome these challenges, diiferent binders have been introduced with these electrodes. This minireview is focused on the application of guar gum as a binder for different electrodes and separator. The electrochemical performance of electrodes with guar gum has been compared with other binders.
B‐DNA Structure and Stability: The Role of Nucleotide Composition and Order
Authors: Nieuwland Celine , Hamlin Trevor A. , Fonseca Guerra Célia , Barone Giampaolo , Bickelhaupt F. Matthias 
Published: February 2022

AbstractInvited for this month's cover are the groups of Célia Fonseca Guerra at the Vrije Universiteit Amsterdam and Leiden University, Giampaolo Barone from the Università degli Studi di Palermo, and F. Matthias Bickelhaupt at Vrije Universiteit Amsterdam and Radboud University Nijmegen. The cover picture shows the four primary interaction components (hydrogen bonding, cross‐terms, base stacking, and solvation) that determine the stability of B‐DNA duplexes. Quantum chemical analyses identify an interplay between the stabilizing hydrogen bonds between nucleotides that drive the formation of the DNA double‐strand, and the destabilizing loss of stacking interactions within individual strands combined with partial desolvation. The sequence‐dependence in the duplex stability originates mainly from the cross‐terms, which can be attractive or repulsive. Read the full text of their Research Article at 10.1002/open.202100231.
Anti‐attractant activity of (+)‐trans‐4‐thujanol for Eurasian spruce bark beetleIpstypographus: Novel potency for females
Authors: Jirošová Anna , Kalinová Blanka , Modlinger Roman , Jakuš Rastislav , Unelius C. Rikard , Blaženec Miroslav , Schlyter Fredrik 
Published: February 2022

AbstractBACKGROUNDEurasian spruce bark beetles (Ips typographus) use both attractant and anti‐attractant semiochemicals to find suitable mature host trees.Trans‐4‐thujanol is abundant in young, unsuitable spruce trees. Electrophysiological studies have demonstrated its high activity levels, but field data are lacking.RESULTSEnantioselective GC–MS analysis showed that only (1R,4S)‐(+)‐trans‐4‐thujanol was present in Norway spruce bark volatiles. In a factorial design field‐trapping experiment,trans‐4‐thujanol alone was not attractive toIps typographus. Traps baited withI. typographus'aggregation pheromone andtrans‐4‐thujanol or the known anti‐attractant 1,8‐cineole caught fewer beetles than those baited with the aggregation pheromone alone. Catches fortrans‐4‐thujanol and 1,8‐cineole were dose‐dependent. Intermediate doses oftrans‐4‐thujanol and 1,8‐cineole had a similar effect. Surprisingly, in contrast to 1,8‐cineole and other knownIpsanti‐attractants, which all inhibit males more strongly than females, the addition oftrans‐4‐thujanol to the aggregation pheromone reduced the attraction of females more.CONCLUSIONThe Norway spruce volatile (+)‐trans‐4‐thujanol is a novelI. typographusanti‐attractant with potency comparable to the known anti‐attractants 1,8‐cineole and verbenone, and is more effective for females than for males. Incorporating (+)‐trans‐4‐thujanol into anti‐attractant lures could improve protection of trees from mass attack byI. typographus.
Wogonin and its analogs for the prevention and treatment of cancer: A systematic review
Authors: Banik Kishore , Khatoon Elina , Harsha Choudhary , Rana Varsha , Parama Dey , Thakur Krishan Kumar , Bishayee Anupam , Kunnumakkara Ajaikumar B. 
Published: February 2022

AbstractThe medicinal plant Scutellaria baicalensis, commonly known as Chinese skullcap or Huang‐Qin, has been used as a traditional medicine for several thousand years. The roots of this plant contain bioactive compounds, such as wogonin (WOG), wogonoside, baicalein, and baicalin. The aim of this article is to evaluate the therapeutic potential and mechanisms of action of WOG against different cancers. Numerous in vitro and in vivo studies have revealed that WOG exerts immense therapeutic potential against bladder cancer, breast cancer, cholangiocarcinoma, cervical cancer, colorectal cancer, gallbladder cancer, gastric cancer, glioblastoma, head and neck cancer, hepatic cancer, leukemia, lung cancer, lymphoma, melanoma, multiple myeloma, neuroblastoma, osteosarcoma, ovarian cancer, pancreatic cancer, prostate cancer, and renal cancer by regulating various cell signaling pathways. WOG, in combination with established chemotherapeutic drugs, improves the efficacy of treatment and lowers toxicity. Nevertheless, human trials are warranted to validate these findings. Numerous preclinical studies, combined with an extensive margin of safety and no severe side effects, underscore WOG's therapeutic potential as an anticancer drug. These studies propound the use of WOG as a potential anticancer candidate; however, further high‐quality studies are required to firmly establish the clinical efficacy of WOG for the prevention and treatment of human malignancies.
Developing a sustainability competences paradigm in Higher Education or a White Elephant?
Authors: Lozano Rodrigo , Bautista‐Puig Núria , Barreiro‐Gen Maria 
Published: February 2022

AbstractHigher education institutions (HEIs) have been at the forefront in creating and breaking paradigms, and educating the future decision‐makers, entrepreneurs, and leaders. In the last decade, there have been many efforts to develop sustainability competences in HEIs to ensure that students are prepared for challenges in making societies more sustainable. Recent discourses have focussed on how educators use pedagogical approaches to develop such competences, which has begun to create a sustainability competences paradigm. This research focuses on the benefits and challenges of teaching sustainability, the use of pedagogical approaches, and the development of competences. A survey was sent to 4099 European HEI educators, with 319 full responses obtained for the open‐ended questions. The data was analysed using quantitative content analysis and network analysis. The results provide insights into the rankings of the benefits, and challenges in teaching, competences, and pedagogical approaches. The co‐occurrence maps show a high students' awareness and engagement when educators use pedagogical approaches other than lecturing, and they focus on providing a practice‐oriented perspective. The research discusses that in order to develop a sustainability competences paradigm the benefits of teaching sustainability, using pedagogical approaches, and development of competences need to be fostered, whereas the challenges need to be addressed to avoid creating a White Elephant. The development of sustainability competences in HEI can lead to more sustainability literate decision‐makers, leaders, scientists, and professionals, and thus, better address the pressing challenges that ail our societies and Earth.
Association between magnesium intake and cognition in US older adults: National Health and Nutrition Examination Survey (NHANES) 2011 to 2014
Authors: Tao Meng‐Hua , Liu Jialiang , Cervantes Diana 
Published: February 2022

AbstractIntroductionIdentifying nutrition‐ and modifiable lifestyle‐based risk factors for cognitive decline and dementia may contribute future primary prevention strategies. This study aimed to evaluate the associations between magnesium intake and cognition in older adults in the United States.MethodsBased on the National Health and Nutrition Survey (NHANES) between 2011 and 2014, the study included 2508 participants aged 60 years and older. Linear regression models were used to examine the association of total magnesium intake with cognition.ResultsAfter adjusted demographic and other confounding factors, intakes of energy and total calcium, and serum vitamin D level, higher intake of total magnesium was independently associated with 0.15 higher global cognitive z‐score (95% confidence interval, 0.02 to 0.28 for highest vs. lowest quartile, P trend = .037). The positive association of total magnesium intake with global cognition was primarily presented among women, non‐Hispanic Whites, and those with sufficient serum vitamin D levels (≥50 nmol/L), although interactions were not significant. There were no clear linear associations for global cognition with serum vitamin D level.DiscussionsOur findings suggest that high magnesium intake alone may improve cognition in older adults, particularly among non‐Hispanic Whites and subjects with sufficient levels of serum vitamin D. Further studies are needed to confirm the findings.
Care home residents with dementia: Prevalence, incidence, and associations with sleep disturbance in an English cohort study
Authors: Webster Lucy A. , Costafreda Sergi G. , Barber Julie A. , Kyle Simon D. , Livingston Gill 
Published: February 2022

AbstractIntroductionPeople living with dementia in care homes often have sleep disturbances, but little is known about incidence and importance.MethodsWe interviewed 1483 participants in 97 care homes and report prevalence, 1‐year incidence, and baseline associations of clinically significant sleep disturbance in people with dementia.ResultsBaseline prevalence of clinically significant sleep disturbance was 13.7% (200/1460); 31.3% (457/1462) had them at least once over 16 months. One‐year incidence was 25.2%. At baseline, residents with sleep disturbance had lower quality of life (mean difference –4.84; 95% confidence interval [CI] –6.53 to –3.16) and were more frequently prescribed sleep medications (odds ratio 1.75; CI 1.17 to 2.61) than other residents.DiscussionApproximately one‐third of care home residents with dementia have or develop sleep disturbances over 1 year. These are associated with lower quality of life and prescription of sedatives, which may have negative outcomes; therefore, it is important to develop effective treatments.
The Cesium Oxide Mercuride Cs18Hg8O6
Authors: Nusser Lukas , Hohl Timotheus , Tambornino Frank , Hoch Constantin 
Published: February 2022

AbstractBy reacting Cs with Cs2O and elemental mercury the new double salt Cs18Hg8O6 could be obtained. Its crystal structure (cubic, space group I23 with a=13.3920(10) Å, Z=2, R1=0.026/0.032 for I≥2σ(I)/all I, respectively) comprises isolated oxide anions in octahedral coordination by cesium cations next to the mercuride anion [Hg8]6−. This first isolated anion of mercury has cubic shape and is coordinated by cesium atoms capping the faces and the edges of the [Hg8]6− cube. The ionic character of the double salt is shown in DFT calculations of the electronic structure. Raman spectra show distinct features in the low energy region arising from the vibrations of the mercuride anion. Cs18Hg8O6 has very close structural analogies to the thallide oxide Cs18Tl8O6.
Forecasting the IBEX-35 Stock Index Using Deep Learning and News Emotions
Authors: Consoli Sergio , Negri Matteo , Tebbifakhr Amirhossein , Tosetti Elisa , Turchi Marco 
Published: February 2022

AbstractMeasuring the informational content of text in economic and financial news is useful for market participants to adjust their perception and expectations on the dynamics of financial markets. In this work, we adopt a neural machine translation and deep learning approach to extract the emotional content of economic and financial news from Spanish journals. To this end, we exploit a dataset of over 14 million articles published in Spanish newspapers over the period from 1st of July 1996 until 31st of December 2019. We then examine the role of these news-based emotions indicators in forecasting the Spanish IBEX-35 stock market index by using DeepAR, an advanced neural forecasting method based on auto-regressive Recurrent Neural Networks operating in a probabilistic setting. The aim is to evaluate if the combination of a richer information set including the emotional content of economic and financial news with state-of-the-art machine learning can help in such a challenging prediction task. The DeepAR model is trained by adopting a rolling-window approach and employed to produce point and density forecasts. Results look promising, showing an improvement in the IBEX-35 index fitting when the emotional variables are included in the model.
Two-loop amplitudes for di-Higgs and di-pseudo-Higgs productions through quark annihilation in QCD
Authors: Ahmed Taushif , Ravindran V. , Sankar Aparna , Tiwari Surabhi 
Published: February 2022

Abstract
Through this article, we present the two-loop massless QCD corrections to the production of di-Higgs and di-pseudo-Higgs boson through quark annihilation in the large top quark mass limit. Within dimensional regularisation, we employ the non-anticommuting γ5 and treat it under the Larin prescription. We discover the absence of any additional renormalisation, so-called contact renormalisation, that could arise from the short distance behaviour of two local operators. This finding is in corroboration with the operator product expansion. By examining the results, we discover the lack of similarity in the highest transcendentality weight terms between these finite remainders and that of a pair of half-BPS primary operators in maximally supersymmetric Yang-Mills theory. We need these newly computed finite remainders to calculate observables involving di-Higgs or di-pseudo- Higgs at the next-to-next-to-leading order. We implement the results to a numerical code for further phenomenological studies.
The three-loop polarized singlet anomalous dimensions from off-shell operator matrix elements
Authors: Blümlein J. , Marquard P. , Schneider C. , Schönwald K. 
Published: February 2022

AbstractFuture high luminosity polarized deep-inelastic scattering experiments will improve both the knowledge of the spin sub-structure of the nucleons and contribute further to the precision determination of the strong coupling constant, as well as, reveal currently yet unknown higher twist contributions in the polarized sector. For all these tasks to be performed, it is necessary to know the QCD leading twist scaling violations of the measured structure functions. Here an important ingredient consists in the polarized singlet anomalous dimensions and splitting functions in QCD. We recalculate these quantities to three-loop order in the M-scheme by using the traditional method of space-like off-shell massless operator matrix elements, being a gauge-dependent framework. Here one obtains the anomalous dimensions without referring to gravitational currents, needed when calculating them using the forward Compton amplitude. We also calculate the non-singlet splitting function$$ \Delta {P}_{\mathrm{qq}}^{(2),\mathrm{s},\mathrm{NS}} $$∆Pqq2,s,NSand compare the final results to the literature, also including predictions for the region of small values of Bjorkenx.