bluuebunny/crossref_metadata_2025_split huggingface dataset:
Directional predictability from energy markets to exchange rates and stock markets in the emerging market countries (E7 + 1): New evidence from cross‐quantilogram approach
Authors: Tiwari Aviral Kumar , Shahbaz Muhammad , Khalfaoui Rabeh , Ahmed Rizwan , Hammoudeh Shawkat 
Published: October 2022

AbstractWe examine the directional predictability of energy stock returns on exchange rates and stock market in the E7 + 1 emerging market economies, which include India, China, Indonesia, South Korea, Turkey, Brazil, Mexico, and Russia, over the period 4 January 2000 to 31 May 2018. To achieve this, we carried out a cross‐quantile analysis in the static and dynamic frameworks, using the bi‐variate cross‐quantilogram (CQ) and the partial cross‐quantilogram (PCQ) approaches and a dynamic variant of such approaches. The predictability of the stock returns on the energy prices for WTI, Brent, OPEC, heating oil and natural gas is examined. Further relationships are also conditioned by using two measures of geopolitical risk, including the general geopolitical risk (GPRD), and the geopolitical risk threats (GPRD_Threat). The overall results highlight the importance of employing the PCQ approach in examining the predictability of different pairs of the energy prices, exchange rates and stock markets. They also indicate that controlling for GPRD and GPRD_Threat significantly improves the predictability of these variables. Policy implications of the empirical findings have been elaborated and discussed.
Is there a nonlinear relationship between public investment and private investment? Evidence from 21 Organization for Economic Cooperation and Development countries
Authors: Marcos Sofia São , Vale Sofia 
Published: October 2022

AbstractThis paper studies the relationship between public investment and private investment in a sample of 21 Organization for Economic Cooperation and Development (OECD) countries between 2000 and 2019. Using panel data nonlinear threshold regression models, the empirical results show that there exist threshold levels for the share of public investment in private investment, the real Gross Domestic Product (GDP) growth rate and the real interest rate that affect the relationship between public and private investment. All estimates support a crowding‐in effect of public investment on private investment. In terms of policy prescriptions, by increasing public investment, OECD governments can expect positive spillovers to private investment.
Endocannabinoids effect on oxidative status of human platelets
Authors: Signorello Maria Grazia , Ravera Silvia , Leoncini Giuliana 
Published: October 2022

AbstractReactive oxygen species (ROS) are known to regulate platelet activation. Since endocannabinoids behave as platelet agonists, we investigated the effect of two endocannabinoids, 2‐arachidonoylglycerol (2AG) and anandamide (AEA) on the oxidative status of human platelets. We have demonstrated that 2AG and AEA stimulate ROS production, superoxide anion formation and lipid peroxidation. The effect is dose and time dependent and mainly occurs through the involvement of cannabinoid receptor 1 (CB1) since all tested parameters are greatly reduced by SR141716, the CB1 specific inhibitor. The specific inhibitor of cannabinoid receptor 2 (CB2) SR144528 produces a very small inhibition. The involvement of syk/PI3K/AKT/mTor pathway in oxidative stress induced by endocannabinoids is shown. Nicotinamide adenine dinucleotide phosphate oxidase seems to be poorly involved in the endocannabinoids effect. Concerning the aerobic metabolism, it has been demonstrated that endocannabinoids reduce the oxygen consumption and adenosine triphosphate synthesis, both in the presence of pyruvate + malate or succinate. In addition, endocannabinoids inhibit the activity of respiratory complexes II, III and IV and increase the activity of respiratory complex I. The endocannabinoids effect on aerobic metabolism seems to be also a CB1 mediated mechanism. Thus, in human platelets oxidative stress induced by endocannabinoids, mainly generated in the respiratory chain through the activation of complex I and the inhibition of complex II, III and IV, may lead to thrombotic events, contributing to cardiovascular diseases.
Collaborative control of branching ratio in the O + HO2 → OH + O2 reaction via vibrational and rotational excitation
Authors: Chen Qixin , Hu Xixi , Xie Daiqian 
Published: October 2022

AbstractTo understand the effect of different vibrational and rotational modes of reactant to enhance the reactivity of the O + HO2 → OH + O2 reaction, we revisited this important atmospheric reaction. We report here a quasi‐classical trajectory (QCT) study of the reaction dynamics on a recently developed full‐dimensional potential energy surface (PES). Our previous work has indicated that this reaction has two pathways, the H abstraction (HA) channel and the O abstraction (OA) channel, which lead to totally different product energy distribution. In this work, we identified that the vibrational excitation of the OH stretching (v1) mode of HO2 is the switch of the HA channel at low collision energy; meanwhile, the rotational excitation can also greatly change the branching ratio of the two pathways. With the excitation of v1 mode, the original negligible HA channel controlled by the tight transition state becomes quite important. This work presents an approach to control the branching ratio via collaboration between vibrational and rotational excitation and will enrich the knowledge of the O + HO2 reaction in atmospheric chemistry and physics.
Indole‐3‐carbinol ameliorated the neurodevelopmental deficits in neonatal anoxic injury in rats
Authors: Ramakrishna Kakarla , Krishnamurthy Sairam 
Published: October 2022

AbstractNeonatal anoxia is linked to long‐lasting neurodevelopmental deficits. Due to the lack of pharmacological intervention to treat neonatal anoxia, there is interest in finding new molecules for its treatment. Indole‐3‐carbinol (I3C) has shown neuroprotective effects in some disease conditions. However, the neuroprotective role of I3C in neonatal anoxia has not been explored. Consequently, we have investigated the effect of I3C on neonatal anoxia‐induced brain injury and neurodevelopmental deficits. Rat pups after 30 h of birth were subjected to two episodes of anoxia (10 min in each) at a time interval of 24 h by flowing 100% nitrogen. I3C was administered within 30 min of the second episode of anoxia on a postnatal day (PND) 3 and continued for PND 9. Neurodevelopmental deficits, cortical mitochondrial membrane potential (MMP), opening of mitochondrial permeability transition pore (MPTP), electron transport chain (ETC) enzyme activities, oxidative stress, hypoxia‐inducible factor‐1α (HIF‐1α) levels, histopathological changes, and apoptosis were measured. I3C treatment dose‐dependently ameliorated the neurodevelopmental deficits and somatic growth in anoxic pups. I3C improved mitochondrial function by enhancing the MMP, mitochondrial ETC enzymes, and antioxidants. It blocked the MPTP opening and release of cytochrome C in anoxic pups. Further, I3C reduced the elevated cortical HIF‐1α in neonatal anoxic pups. Furthermore, I3C ameliorated histopathological abnormalities and mitochondrial‐mediated apoptotic indicators Cyt C, caspase‐9, and caspase‐3. Our study concludes that I3C improved neuronal development in anoxic pups by enhancing mitochondrial function, reducing HIF‐1α, and mitigating apoptosis.
Physiological and transcriptomic analysis reveal the regulatory mechanism underlying grain quality improvement induced by rice ratooning
Authors: Lin Feifan , Huang Jinwen , Lin Sheng , Letuma Puleng , Xie Daoxin , Rensing Christopher , Lin Wenxiong 
Published: October 2022

AbstractBACKGROUNDRatoon rice cropping has been introduced for increased rice production in southern China and, as a result, has been becoming increasingly popular. However, only a few studies have addressed the regulatory mechanism underlying grain quality improvement induced by rice ratooning.RESULTSIn this study, parameters of rice quality, including head rice yield, chalky grain percentage, grain chalkiness degree, hardness and taste value, were shown to be much improved in the ratooning season rice as compared to its counterparts main and late cropping season rice, indicating that such an improvement was irrespective of seasonal effects. In addition, the nutritional components of grains varied greatly between main‐cropping season rice, ratooning season rice and late‐cropping season rice and displayed a significant correlation with rice quality. Finally, the regulatory mechanism underlying rice quality improvement revealed that gibberellin‐dominated regulation and plant hormone signal transduction jointly contributed to a decrease in formation of chalky grains.CONCLUSIONThis work improves our knowledge on rice quality improvement under rice ratooning, particularly on the regulatory mechanism of plant hormones. © 2022 Society of Chemical Industry.
Development of pullulan‐based nanocomposite films reinforced with starch nanocrystals for the preservation of fresh beef
Authors: Dai Miaoqi , Xiong Xiong , Cheng Anwei , Zhao Zhengtao , Xiao Qian 
Published: October 2022

AbstractBACKGROUNDIncorporation of polysaccharide‐based nanofillers is an effective strategy to fabricate bio‐nanocomposite films with preferable mechanical, barrier, and surface hydrophobicity properties compared to pure biopolymer films. The objective of this research is to investigate the influence of starch nanocrystals obtained from native (NSNC) and waxy rice starch (WSNC) on the physical–chemical properties of pullulan‐based nanocomposite films and their preservation performance on fresh beef.RESULTSContinuous SNCs network structure was observed for pullulan‐10% SNCs nanocomposite films, whereas the percolation network of SNCs was destroyed and became no longer continuous with increasing SNCs concentration up to 20% in pullulan films. Among the tested films, pullulan‐10% SNCs films showed the highest TS values, lowest WVP and OTR values, due to the formation of percolating SNCs network in pullulan matrix. It is noteworthy that the WVP and OTR values of pullulan‐10% WSNC films were significantly lower than that of pullulan‐10% NSNC films, probably due to higher hydrophobicity and crystallinity of WSNC compared with NSNC. Beef pieces coated with pullulan‐SNCs films had higher L* and a* values, lower TVB‐N, TBARS, and TVC values during 7 days' storage at 4 °C compared with samples coated with pullulan films.CONCLUSIONPullulan‐SNCs nanocomposite films, especially pullulan‐WSNC films, could be potentially used as a coating material for fresh beef due to their desirable oxygen and water barrier properties. © 2022 Society of Chemical Industry.
Characterization of aroma compounds and effects of amino acids on the release of esters in Laimao baijiu
Authors: Niu Yunwei , Zhao Wenqi , Xiao Zuobing , Zhu Jiancai , Xiong Wen , Chen Feng 
Published: October 2022

AbstractBackgroundLaimao baijiu is a typical soy‐sauce aroma‐type baijiu in China. Amino acids are non‐volatile compounds in baijiu and are beneficial to human health. Aroma is one of the important indicators that are used to evaluate the quality of baijiu. The interaction between aroma‐active compounds and non‐volatile compounds can also affect the release of aroma compounds. In this study, we identified the active‐aroma compounds and amino acids in Laimao baijiu by stir bar sorptive extraction (SBSE), gas chromatography‐olfactometry (GC‐O), gas chromatography–mass spectrometry (GC–MS), and ultra‐performance liquid chromatography–mass spectrometry (UPLC‐MS). The interaction between amino acids and key esters was investigated by sensory analysis and partition coefficients.ResultsA total of 63 aroma compounds and 21 amino acids were identified. Twenty‐one esters were identified from them as major aroma‐active ester compounds with odor activity values ≥ 1. Finally, sensory analysis revealed that l‐alanine had a significant effect on the strength of the aromas of esters, suggesting that low concentrations of amino acids were more likely to promote the release of esters and high concentrations were more likely to inhibit this. The partition coefficient can be a good explanation for this phenomenon.Conclusionl‐Alanine can significantly affect the aroma intensity of key ester aroma compounds in Laimao baijiu, and the effects of different concentrations of amino acids are different. This work shows that amino acids, as non‐volatile compounds, have a regulatory effect on the release of aroma compounds in alcoholic beverages, which may provide new technical support for the aroma modulation of alcoholic beverages. © 2022 Society of Chemical Industry.
Transforming agrifood systems in a win–win for health and environment: evidence from organic rice–duck coculture
Authors: Gao Hui , Dai Linxiu , Xu Qiang , Gao Pinglei , Dou Zhi 
Published: October 2022

AbstractBACKGROUNDRice–duck coculture is an ecological agricultural mode; however, the nutritional and environmental benefits of transforming from conventional rice monoculture to rice–duck coculture are unknown. Based on survey data and the life‐cycle assessment approach, this study conducted a carbon footprint evaluation of conventional rice monoculture (CR), organic rice monoculture (OR), and organic rice–duck coculture (ORD) using different functional units.RESULTSThe carbon footprint per hectare of ORD (7842 ± 284 kg CO2eq ha−1) was slightly lower than that of CR (7905 ± 412 kg CO2eq ha−1), while higher than that of OR (7786 ± 235 kg CO2eq ha−1). Although the rice yield of ORD was slightly lower than that of CR, its nutrient density unit (NDU) did not decrease significantly due to the additional duck yield. Thus, the carbon footprint per NDU of ORD was significantly lower than that of OR by 24.3% (P < 0.05) and was 5.8% higher than that of CR, but this was not statistically significant. Due to the higher economic profits of ORD, its unit of carbon footprint per economic profit was significantly reduced (by 47.1–75.7%) compared with the other two farming modes, while the net ecosystem economic budget was significantly increased by 98.5–341.9% (P < 0.05).CONCLUSIONTransforming from a rice monoculture to a coculture system will contribute to a win–win situation for human health and environmental sustainability. This study highlighted the abundant nutritional output function of the rice–duck coculture and analyzed the urgency and necessity of transitioning from traditional agriculture to ecological agriculture from the production and consumption perspectives. © 2022 Society of Chemical Industry.
Ruthenium(III) catalyzed oxidation of paracetamol by chloramine‐T in aqueous alkaline medium – A kinetic and mechanistic pathway
Authors: Pareek Deepmala , Rolaniya Asha , Bhasin Menka , Sailani Riya 
Published: October 2022

AbstractThe kinetic study of ruthenium(III) chloride catalyzed oxidation of paracetamol by N‐chloro‐p‐toluene sulfonamide (chloramine‐T) in the alkaline medium has been performed. The reaction exhibits second order nature and the effect of the catalyst indicates the occurrence of uncatalyzed reaction simultaneously. Rate is decelerated by hydroxide ions. A plausible reaction mechanism has been suggested and the rate law is derived to account for such experiential observations. The activation parameters have been calculated. No evidence of the participation of free radicals is observed.
Positive Predictive Value of Endoscopic Findings to Diagnose Vocal Fold Paresis
Authors: Rapoport Sarah K. , Basharat Usmaan , Kirke Diana N. , Courey Mark S. 
Published: October 2022

ObjectiveLaryngoscopy corresponding with laryngeal electromyography (LEMG) is essential in diagnosing vocal fold paresis. However, baseline asymmetry or other diseases oftentimes confound the exam, making diagnosis difficult. There is currently no agreed upon endoscopic criteria proven to reliably correlate with LEMG findings. We define a set of endoscopic findings termed “paresis triad” that, when present together, reliably correlate with LEMG. The paresis triad consists of (1) hypocontraction of the weak side of the larynx with increased ventricular show, (2) hypercontraction of the intact side with bulging of the false fold covering the ventricle, and (3) tilting of the interarytenoid cleft to the weak side.MethodsWe performed a retrospective review of patients with laryngeal asymmetry on laryngoscopy. Patients were divided into two groups: those with consistent paresis triad findings across all pitches and intensities, and those without. All patients underwent LEMG by a neurolaryngologist blinded to the laryngoscopic findings. The endoscopies were then rereviewed in a blinded manner by a second laryngologist to assess inter‐ and intrarater reliability for identification of the triad.ResultsTwelve patients met inclusion criteria (age 50 +/−15, 7F:5M). Nine had the paresis triad. Three had an inconsistent triad. All patients with the paresis triad had LEMG findings consistent with neurologic injury on the suspected side. All patients with inconsistent triad findings had normal LEMG.ConclusionsOur findings suggest the proposed laryngoscopic paresis triad may be useful objective criteria to diagnose paresis without the need for LEMG. Further prospective studies should examine a larger series of patients.Level of Evidence4 Laryngoscope, 133:1712–1716, 2023
Surface productivity gradients govern changes in the viability of deep ocean prokaryotes across the tropical and subtropical Atlantic
Authors: Gómez‐Letona Markel , Arístegui Javier , Hernández‐Hernández Nauzet , Pérez‐Lorenzo María , Álvarez‐Salgado Xosé Antón , Teira Eva , Sebastián Marta 
Published: October 2022

AbstractProkaryotes represent a major fraction of marine biomass and play a key role in the global carbon cycle. We studied the vertical profiles (0–3500 m) of abundance, viability, and activity of prokaryotic communities along a productivity gradient in the subtropical and tropical Atlantic to assess whether there is a vertical linkage between surface productivity regimes and deep ocean prokaryotic communities. We found that latitudinal changes in the vertical patterns of cytometric variables were coupled with surface productivity: higher prokaryotic abundances and viabilities, and smaller cell sizes were observed below highly productive surface waters, an effect reaching down to the bathypelagic layer. Leucine uptake rates in deep waters showed no clear relationship with surface productivity. Changes in resource and energy allocation to growth vs. maintenance in hostile environments, cell‐size‐dependent metabolic requirements, and variability in leucine‐to‐carbon conversion may all be part of the array of factors involved in controlling the prokaryotic activity patterns that were measured. Our work adds to the recent findings that highlight the importance of vertical connectivity for prokaryotic communities in the dark ocean and unveils a remarkable impact of surface conditions in the viability of deep ocean prokaryotes. This is a key aspect when considering metabolic rates of prokaryotic communities in the bathypelagic realm.
Spectral Tuning, Stabilities under External Exposures, and Spontaneous Enhancement of Emission Intensity in Grown‐into‐Glass All‐Inorganic Metal Halide Perovskite Nanocrystals
Authors: Kang Fengwen , Du Yongping , Yang Ze , Boutinaud Philippe , Wubs Martijn , Xu Jie , Ou Haiyan , Li Dongzhe , Zheng Kaibo , Tarekegne Abebe T. , Sun Guohuan , Xu Xuhui , Xiao Sanshui 
Published: October 2022

AbstractHerein, the grown‐into‐glass (GIG) CsPbBr3:Ln3+ (Ln = La, Lu) nanocrystals (NCs) are designed and fabricated using an in situ nanocrystallization method. It is shown that a substitution of Pb2+ sites with Ln3+ ions leads to a blueshift of emission position induced by an increase of the bandgap of CsPbBr3. Additionally, the GIG‐samples are found to feature excellent photoluminescent (PL) properties after being immersed respectively in water for 300 days at room temperature, boiling water for 12 h, and corrosive environments for 24 h, as well as recoverable PL intensity either after several cycles of heat‐cooling experiments or after being continuously exposed to a 405 nm laser irradiation. Besides, a spontaneous enhancement of 20‐25% of emission intensity during the 1‐2.5 hours' stage of a 405 nm laser irradiation, attributed to the radiative recombination of charge carriers that can be de‐trapped from trapping levels upon the laser light irradiation and that then spontaneously reinforces the emission intensity, is observed in the GIG‐CsPbBr3:Ln3+ NCs. Finally, a white light‐emitting prototype, with a CIE chromaticity coordinate at (0.4110, 0.3706), a color rendering index of 89 and a correlated color temperature of 3363 K is realized by combining the GIG‐CsPbBr3 NCs, YAG:Ce and CaWO4:Eu phosphors.
Betti numbers of stable map spaces to Grassmannians
Authors: Bagnarol Massimo 
Published: October 2022

AbstractLet be the coarse moduli space of stable degreedmaps fromn‐pointed genus 0 curves to a Grassmann variety . We provide a recursive method for the computation of the Hodge numbers and the Betti numbers of for allnandd. Our method is a generalization of Getzler and Pandharipande's work for maps to projective spaces.
On the existence of multiple solutions for fractional Brezis–Nirenberg‐type equations
Authors: Mukherjee Debangana 
Published: October 2022

AbstractThis paper studies the nonlocal fractional analog of the famous paper of Brezis and Nirenberg [Comm. Pure Appl. Math. 36 (1983), no. 4, 437–477]. Namely, we focus on the following model:
where is the fractional Laplace operator, , with , , , and establish the existence of nontrivial solutions and sign‐changing solutions for the problem .
Urodynamic findings in female patients with nocturia: An age‐matched case‐control study
Authors: Wang Connie N. , Sebesta Elisabeth M. , Moran George W. , Chung Doreen E. 
Published: October 2022

AbstractIntroductionNocturia negatively impacts the quality of life and is associated with poor general health, but our understanding of its etiologies is incomplete. Urodynamic studies (UDS) findings in patients with nocturia are not well described and may help guide management. Our objective was to compare UDS findings with age‐matched patients with and without nocturia.Materials and MethodsWe retrospectively reviewed UDS findings of 1124 patients (2010–2017). A total of 484 (43%) presented with nocturia and 821 (73%) were female. Female patients were separated into age‐matched groups with and without nocturia. Urinary symptoms, past medical diagnoses, demographic information, and UDS findings were compared.ResultsA total of 596 female patients were included, 298 (50%) with nocturia and 298 without. Past medical history, including diabetes mellitus and cardiovascular disease, did not differ between groups. Patients with nocturia were more likely to have pelvic pain (p = 0.0014) and other daytime symptoms (frequency, urgency, and urgency incontinence). On UDS, patients with nocturia were more likely to have bladder outlet obstruction (BOO) (p = 0.025) and dysfunctional voiding (DV) (p < 0.0001). There was no difference in the frequency of detrusor overactivity (DO). Bladder capacity and postvoid residual volumes were lower, though not significantly, in the nocturia group.ConclusionsWhen comparing UDS findings in contemporary, age‐matched groups of female patients with and without nocturia, we found only BOO and DV to be associated with nocturia. While the treatment of nocturia is often aimed at managing DO, our data suggest that this may not be the primary urodynamic correlation with nocturia. Further studies are needed to assess whether successful treatment of BOO and DV can improve nocturia.