bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of news communication strategy in all media era based on data mining
Authors: Ma Wangping , Li Jinlu 
Published: April 2023

Abstract
In the process of information interaction, the information terminal will complete the integration of information in different media forms through conversion technology, including pictures, text, audio and other forms that can be converted into unified standard digital information. Therefore, in today's changing day by day, the material form of media is constantly evolving, and different media are starting to cooperate with each other to exchange information and weaken the industry boundaries, so that the media development has a trend of integration and transformation. In the process of continuous development of news communication technology, the information service structure is optimized according to the actual needs of the audience, so as to improve the user's attention. In the context of all media era, only a few media systems implement event representation based on LDA or n-gram model. In this paper, we introduce data mining technology to express the algorithm through vector space model, and further establish news model. Through the simulation experiment, it is concluded that the news model established in this paper can efficiently represent the target news. After a certain number of pages are retrieved, the original algorithm will arrange and represent irrelevant pages, and the relevance of the optimized algorithm is obviously better than the original algorithm. Therefore, text matching with the original HITS algorithm can perfectly improve the topic shift problem, so as to better achieve news expression, and further analyze the news communication strategy in the all media era. By introducing data mining technology, this paper completes the analysis of news communication strategies in the context of the all media era.
Association between serum urea nitrogen levels and prostate-spe cific antigens (NHANES 2003-2010)
Authors: YANG Meng , Hu HE , Cheng QIAN , Ke YANG , ZHU JIANGUO 
Published: April 2023

Abstract
Background
There is increasing evidence that serum urea nitrogen may be a risk factor for prostate cancer (PCa) and affects serum prostate-specific antigen (PSA) concentrations, but direct evidence on the association between PSA and serum urea nitrogen levels in the general population is still lacking. The purpose of this study was to demonstrate the association between serum urea nitrogen levels and PSA and PCa.
Methods
We conducted a cross-sectional study using the National Health and Nutrition Examination Survey (NHANES, 2003–2010) database. We performed multifactorial regression to examine the association between serum urea nitrogen levels and PSA and PCa, followed by subgroup analysis.
Results
This study included 5256 subjects, and after adjusting for demographic, biological and immunological variables, we observed that there was a threshold for blood urea nitrogen concentration below which each 1 ng/ml increase in serum urea nitrogen was associated with a 0.0325 ng/mL (log2 transformed) (95% CI: 0.0064, 0.0586) increase in PSA concentration, with a P trend less than 0.05 and the difference was statistically significant. Sensitivity analysis using the generalized additive model (GAM) supported a linear association between serum urea nitrogen and serum PSA concentrations when blood urea nitrogen concentrations ranged from 0ng/ml to 6.78ng/ml.
Conclusion
Serum urea nitrogen was independently and positively correlated with serum PSA concentration when the blood urea nitrogen concentration ranged from 0 ng/ml to 6.78 ng/ml.
Predictive effect and clinical significance of exosome-related genes for Nonalcoholic fatty liver disease-related hepatocellular carcinoma
Authors: Ding Xiaoqian , Zhang Jie , Ma Xuefeng , Sun Baokai , Chu Xueru , Liu Shousheng , Zhao Zhenzhen , Chen Lizhen , Xin Yongning , Zhuang Likun 
Published: April 2023

AbstractNonalcoholic fatty liver disease (NAFLD) is a multifactorial metabolic syndrome which could develop into hepatocellular carcinoma (HCC). Exosomes could mediate intercellular communications and play key roles in the occurrence and development of many diseases including NAFLD and HCC. However, expressions and roles of the genes related to exosomes in NAFLD-related HCC remain unclear. The objective of this study was to investigate the expressions and diagnostic values of exosome-related genes in NAFLD-related HCC. Firstly, we identified 15 genes related to exosome secretion by database searching. Two subgroups of patients with NAFLD-related HCC from GEO database were identified on the basis of exosome-related genes. High level of memory CD4 + T cells and low expressions of Immune Checkpoint genes were observed in the group with highly expressed genes which could promote exosome secretion. Subsequently, the logistic regression analysis was used to generate the formula based on three selected exosome-related genes in NAFLD-related HCC cohort. Receiver operating characteristic (ROC) curve analysis confirmed the good predictive power of formula. Functional analysis showed abundant metabolism-related pathways were screened out in DEGs between the high and low risk-score groups. The risk score from the formula was also positively correlated with memory CD4 + T cells and negatively associated with Immune Checkpoint genes. Finally, prognostic potential of the Exosome-related formula was analyzed in HCC cohort from TCGA database, and patients in the group with highly expressed exosome-promoted genes showed significantly reduced overall survival. We also constructed a nomogram to improve the predictive value of the formula for evaluating the prognosis of patients with HCC. In summary, our study clarified the significance of exosome-related genes in the development of NAFLD-related HCC.
Homoeologous evolution of the allotetraploid genome of Poa annua L.
Authors: Benson Christopher W. , Sheltra Matthew R. , Maughan Jeff P. , Jellen Eric N. , Robbins Matthew D. , Bushman B. Shaun , Patterson Eric L. , Hall Nathan D. , Huff David R. 
Published: April 2023

Abstract
Poa annua (annual bluegrass) is an allotetraploid grass and one of the most widely dispersed plant species on earth. Here, we report the chromosome-scale genome assemblies of P. annua’s diploid progenitors, Poa infirma and Poa supina. We find that the diploids diverged from their common ancestor 5.5–6.3 million years ago and hybridized to form P. annua ≤ 50,000 years ago. The diploid genomes are similar in chromosome structure and most notably distinguished by the divergent evolutionary histories of their transposable elements, leading to a 1.7⋅ difference in genome size. We show that P. annua’s smaller (B) subgenome is preferentially accumulating genes and that its genes are more highly expressed. Whole-genome resequencing of several additional P. annua ecotypes revealed large-scale chromosomal rearrangements characterized by extensive TE-downsizing and evidence supporting the Genome Balance Hypothesis. The findings and genomic resources presented here will enable the development of homoeolog-specific markers for accelerated weed science and turfgrass breeding.
Investigating The Relationship Between Hippocampus:Dentate Gyrus Volume and Hypothalamus Metabolism in Participants with Major Depressive Disorder
Authors: Lin Karen , Sunko Daniel , Wang Junying , Yang Jie , Parsey Ramin , DeLorenzo Christine 
Published: April 2023

Abstract
Reduced hippocampal volume occurs in major depressive disorder (MDD), theoretically due to elevated glucocorticoids from an overactivated hypothalamus-pituitary-adrenal (HPA) axis. To examine this in humans, hippocampal volume, and hypothalamus (HPA axis) metabolism was quantified in participants with MDD before and after antidepressant treatment. 65 participants (n = 24 males, n = 41 females) with MDD were treated in a double-blind, randomized clinical trial of escitalopram. Participants received simultaneous positron emission tomography (PET) / magnetic resonance imaging (MRI) before and after treatment. Linear mixed models examined the relationship between hippocampus/dentate gyrus volume and hypothalamus metabolism. Chi-squared tests and multivariable logistic regression examined the association between hippocampus/dentate gyrus volume change direction and hypothalamus activity change direction with treatment. Multiple linear regression compared these changes between remitter and non-remitter groups. Covariates included age, sex, and treatment type. No significant linear association was found between hippocampus/dentate gyrus volume and hypothalamus metabolism. 62% (38 of 61) of participants experienced a decrease in hypothalamus metabolism, 43% (27 of 63) of participants demonstrated an increase in hippocampus size (51% [32 of 63] for the dentate gyrus) following treatment. No significant association was found between change in hypothalamus activity and change in hippocampus/dentate gyrus volume, and this association did not vary by sex, medication, or remission status. As this multimodal study, in a cohort of participants on standardized treatment, did not find an association between hypothalamus metabolism and hippocampal volume, it supports a more complex pathway between hippocampus neurogenesis and treatment response.
Identifying Nœuds de Liaison in Networks
Authors: Simisi Jeremie Kambale , Pabico Jaderick 
Published: April 2023

Abstract
We defined and developed a computational procedure for finding theintermediary nodes in networks we named Nœuds de liaison. A nœud deliaison refers to any cut-vertex v of a graph G but is not a member of anypseudo-clique Qi, ∀ Qi ⊆ G. The pseudo-clique Q is made up of nodesin G that are closely connected to each other, and where the nodes format least a ring C and at most a complete graph K. The computationalprocedure took O(V+E) to print out all the nœuds de liaison. Our majorfinding is that we designed a linear time algorithm and wrote a computerprogram for computing all the nœuds de liaison in undirected graphs.
Droughts dominate ecosystem recovery from fires in the Western U.S.
Authors: Ahmad Shahryar , Holmes Thomas , kumar Sujay , Lahmers Timothy , Liu Pang-Wei , Nie Wanshu , Getirana Augusto , Bindlish Rajat , Guzman Alberto , Melton Forrest , Locke Kim , Yang Yun 
Published: April 2023

Abstract
A steady rise in fires in the Western United States, coincident with intensifying droughts, imparts significant modifications to the underlying vegetation, hydrology, and overall ecosystem. Relationships between droughts and fire properties have been explored; however, it remains uncertain the extent to which compounding disturbances from droughts influence post-fire hydrologic and ecosystem recovery. Here, we use remote sensing-derived high-resolution evapotranspiration estimates to show that ecoregions dominated by grasslands and savannas are more susceptible to drought stresses, which amplify fire-induced ET decline and, subsequently, shift water flux partitioning. In contrast, severely burned forests respond with slow or incomplete recovery, but with a lower sensitivity to dry extremes. We conclude that the dynamics of water balance recovery in post-fire regimes is dominated by moisture-limited conditions. This explains why moderate to extreme droughts aggravate impacts to the water balance in grasslands and savannas, while moisture accessed by deeper roots in forests helps meet evaporative demands unless severe burns disrupt internal tree structure and deplete fuel load availability. Our results highlight the dominant control of drought on altering the resilience of vegetation to fires, with critical implications for terrestrial ecosystem stability in the face of anthropogenic climate change in the western U.S.
A Housing Society Prestige Perspective of Greenness and Socio-Economic Amenities: Exploring the Links with Pricing Premium Using Artificial Intelligence
Authors: KOWALEWSKI Oskar , Wahid Abdul , Mumtaz Muhammad Zubair 
Published: April 2023

Abstract
Does the construction of green spaces, parks, greenbelts and socio-economic amenities helps in creating reasonable identity and prestige before customers which further nurtures premium and pricing advantages in return? For this purpose, we construct prestige based on composite pollution index, greenness score, and socio-economic amenities which further validated through artificial intelligence using Python. We test the composite pollution index, greenness and socio-economic amenities in hedonic model using OLS and SFA separately. We find out that greenness score, and socio-economic amenities have significant impact on value and cause premium and pricing advantages. Pollution index cause underpricing and pricing disadvantages. Furthermore, these amenities and preferences have vital role in constructing identity and prestige before customers. The study’s findings have practical implications for investors interested in the real estate markets of emerging and developing economies where urban climate is serious concern.
JEL Codes : R20, R30, R39
Evaluation of the degradation of plastics PET and PE type under composting conditions using coffee pulp as substrate
Authors: Dussan Mariana , García Andrés A. , López-Gonzalez Mar , M. Christhy V. Ruiz 
Published: April 2023

Abstract
The indiscriminate use, the alarming accumulation of plastic, and its subsequent poor well-disposal and management have generated the current environmental problem. As an environmentally friendly and effective strategy, composting processes arise like a method for waste treatment. This study explored the degradation of polyethylene terephthalate (PET) and low-density polyethylene (PE) plastic types under composting conditions for 90 days using coffee pulp as substrate into the compost. The degradation was estimated from weight variation over time, the thermal stability of the PET and PE samples was carried out using thermogravimetric analysis (TGA/DTA) whereas the chemical and morphological changes on the samples were assessed by FT-IR and SEM. The bacterial communities of composting were also investigated by 16S rRNA gene clone analysis. The results showed a partial degradation of PET and PE samples under composting conditions for the period of time considered. However, a strong adhesion effect was observed for PE samples which give place to a variation on the thermal stability of the samples. 16S RNA gene clone analysis showed that Sphingobacterium was the dominant bacteria, which is not related with the degradation of plastic material on composting. This result could be related with a reduced degradation during the composting treatment.
Stable Carbon and Oxygen Isotopes Indicate Photophysiology and Calcification Mechanisms of Macroalgae on Little Cayman Reefs
Authors: Koch Marguerite S. , McNicholl Conall , Manfrino Carrie , Lapointe Brian 
Published: April 2023

Abstract
Tropical macroalgae serve importance ecological roles on coral reefs but can supplant corals in phase shifts as shown worldwide. Thus, it is important to understand their fundamental photophysiology and calcification mechanisms. We examined organic d13C, organic+inorganic d15N, inorganic CaCO3 d13C and d18O, and organic %C, %N, C:N of abundant macroalgae on Little Cayman Island (LCI) reefs across irradiance gradients (5-2,000 mmol m-2 s-1). We hypothesized macroalgae utilize greater CO2 in low light as carbon concentration mechanisms (CCMs) for HCO3- uptake have higher energetic costs. We proposed that calcification mechanisms are influenced by light and Ci-use strategy in addition to taxonomy. LCI macroalgae had organic d13C values (-12‰ to -25‰) indicative of CCMs and exhibited only 1-3‰ 13C depletion in irradiances <5 mmol photons m-2 s-1. Ochrophyte d13C values were enriched in 13C at low nitrogen indicative of efficient CCMs. Macroalgae exhibited four clusters of thalli CaCO3 d13C that were distinctly taxon-specific. Rhodophytes exhibited the most negative inorganic d13C and d18O values (-4.1‰ ± 0.7‰; -3.7‰ ± 0.4‰) an indication of high calcifying space pH and rapid calcification, potentially reliant on active ion transport. Relatively higher organic C fractionation when utilizing greater CO2 for photosynthesis was reflected in depleted thalli carbonates in species/genus with positive d13C values. Increasing ocean CO2 is not likely to enhance dominant LCI macroalgal photosynthesis as these reef macroalgae utilize CCMs across a broad range of irradiances; however, effects on calcification may be taxon specific based on the degree of biotic control elucidated in thalli carbonate isotopes.
The influence of power posture in negotiation: an Ultimatum Game study
Authors: Ferracci Sara , Manippa Valerio , Giuliani Felice , Palumbo Riccardo , Pietroni Davide 
Published: April 2023

Abstract
Purpose
Recent studies have explored the effect of specific body postures on dominance perception. We investigated whether the high-power posture (i.e. an open and expansive posture) and the low-power posture (i.e. a closed and contracted posture) can influence the decision-making process involved in the Ultimatum Game (UG). Specifically, we considered the effect that the posture assumed by the counterpart can have on the participants.
Design/methodology/approach
Participants were shown images that presented avatar opponents in a high-power or low-power posture while they played the role of the responder (Experiment 1) or the proposer (Experiment 2).
Findings
In Experiment 1 results show that the responders’ decision was strongly driven by the fairness of the offer rather than the posture of the proposer (avatar). Offers perceived as fair were much more often accepted than unfair ones regardless of the counterparts’ posture. An additional result also shows that among the unfair offers, those formulated by low power posture proposers were more accepted than those formulated by the high-power posture proposer. For Experiment 2 results show instead that the proposers modulated their offers based on the posture of the responders (avatar). Specifically, responders with high power-posture were proposed more generous offers than those with low power-posture.
Originality/value
As far as we know, our study is the first one that takes into account the posture of the counterpart and the effect that the conveyed power can have on the participants’ decision-making processes. Another novelty element is that we compare the high-power posture and the low-power posture considering both the effects of responders’ postures on proposers’ allocation and the effects of proposers’ postures on the responders’ decision to accept the offer.
Further norm inequalities for positive semidefinte matrices
Authors: Kittaneh Fuad , Matharu Jagjit 
Published: April 2023

Abstract
Note: Please see pdf for full abstract with equations.
Let A and B be n×n positive semidefinite matrices, and let ∥·∥2 be the Hilbert-Schmidt norm. Bhatia and then Hayajneh and Kittaneh, usingdi¤erent techniques, proved that
∥AvB1−v + BvA1−v∥2 ≤ ∥A + B∥2
for v ∈ [1/4, 3/4], which gives an affirmative answer to an open problem posed by Bourin for the special case of the Hilbert-Schmidt norm.
In this paper, we prove that
∥A v/2B1−v/2 + Bv/2 A1−v/2∥22 ≤1/2(∥A + B∥22 + ∥Bv/2 A1−vBv/2 + Av/2B1−vAv/2∥22)
for v ∈ [0, 1]. As a consequence of the this inequality, we give a new proof of the above inequality. We also prove that if r ≥ 1, then
|||AvB1-v + BvA1−v||| ≤ |||(A1/r + B1/r)r|||
for 1/2r ≤ v ≤ 2r−1/2r , where ||| · ||| denotes any unitarily invariant norm.
2020 Mathematics Subject Classification. Primary 15A60; Secondary 15B57; 47A30; 47B15.
Determination of zinc, copper, selenium, and manganese in human milk using acid digestion by ICP-MS and its application in biological trace element monitoring
Authors: Taufek Nor Hidayah Mohd , Sabere Awis Sukarni Mohmad , Jamahari Ummi Syahidah Mohamad , Amran Nur Balkhis , Nahas Abdul Rahman Fata , Bidai Joseph 
Published: April 2023

Abstract
Human milk contains essential trace elements which support healthy development of infants. Previous studies have reported various analytical methods using different instruments to measure trace elements in human milk. This study aimed to determine the trace element concentration in human milk using a validated acid digestion method and its application in biomonitoring. Human milk samples were collected from three postpartum mothers and prepared using acid digestion method. All samples were analyzed using ICP-MS and all validation parameters were measured. Four trace elements which were zinc, copper, manganese and selenium were found to have good linearity (r² > 0.99), limit of detection in µg/L (0.06, 0.0001, 0.005, 0.00003, respectively) and limit of quantification in µg/L (0.18,0.0003, 0.02, 0.0001, respectively). The accuracy (83.4–112.7%), inter-day, and intra-day repeatability were within the acceptable limit. The method application on one case study showed the median levels of zinc, copper and selenium in human milk gradually decreased during the early six months, whereas manganese remained stable. Positive significant correlations were observed for most of the elements (r > 0.40, p < 0.001) except for copper-manganese. Acid digestion method is sensitive, accurate and precise to analyze and quantify zinc, copper, manganese and selenium concentrations in human milk simultaneously by ICP-MS. It can be applied in future studies to monitor trace elements concentration in human milk in future studies with larger sample size.
Modelling monthly trends in frost days for the United Kingdom and its regions
Authors: Mills Terence C. 
Published: April 2023

Abstract

Since 2019 the U.K. Met Office has provided monthly observations, beginning in 1960, on the number of days in the month experiencing air frost for the U.K. and its regions. The multivariate regression model with common trends is found to provide an excellent representation of this data set. A variety of common trends are observed across the regions, the most notable of these being an ‘extended winter’ common trend for the months from November through to March. All regions have seen trend declines in frost days per winter month, these ranging from three to five days over the sample period, but the non-Scottish regions have experienced the largest percentage declines, ranging from 29% to 39%. These percentage declines have been smaller for the Scottish regions, ranging from 21% to 27%. The English regions and Northern Ireland have experienced no declines in trend frost days during spring and autumn, but the regions of Scotland have seen declines of between 18 and 23%.