bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chained structure of directed graphs with applications to social and transportation networks
Authors: Concas Anna , Fenu Caterina , Reichel Lothar , Rodriguez Giuseppe , Zhang Yunzi 
Published: September 2022

AbstractThe need to determine the structure of a graph arises in many applications. This paper studies directed graphs and defines the notions of $$\ell$$
ℓ
-chained and $$\{\ell ,k\}$$

{
ℓ
,
k
}

-chained directed graphs. These notions reveal structural properties of directed graphs that shed light on how the nodes of the graph are connected. Applications include city planning, information transmission, and disease propagation. We also discuss the notion of in-center and out-center vertices of a directed graph, which are vertices at the center of the graph. Computed examples provide illustrations, among which is the investigation of a bus network for a city.
Implizite Theorien von Eltern und deren Zusammenhänge mit elterlichem lernbezogenen Verhalten sowie den impliziten Theorien und dem Lern- und Leistungsverhalten ihrer Kinder: Ein Literaturüberblick
Authors: Matthes Benjamin , Stöger Heidrun 
Published: September 2022

ZusammenfassungWährend implizite Theorien (auch bekannt als Mindsets) von Lernenden sowie deren Zusammenhänge mit Lern- und Leistungsverhalten sehr umfassend untersucht wurden, gibt es nur wenige Studien zu impliziten Theorien von Eltern und deren Zusammenhängen mit elterlichem lernbezogenen Verhalten sowie den impliziten Theorien und dem Lern- und Leistungsverhalten ihrer Kinder. Zudem ist wenig über die genauen Wirkmechanismen bekannt sowie über die Bedingungen, unter denen elterliche implizite Theorien elterliches Verhalten vorhersagen. Der vorliegende Beitrag gibt einen systematischen Überblick über Studien zu diesen Themen. Hierfür wurde in verschiedenen Datenbanken eine systematische Literaturrecherche nach relevanten Artikeln aus Fachzeitschriften durchgeführt, die zwischen 1990 und 2021 veröffentlicht worden waren. Bei dieser Recherche konnten insgesamt 11 passende Artikel identifiziert werden, deren Befunde gegliedert nach den untersuchten Bereichen dargestellt werden. Neben Befunden zu elterlichen impliziten Theorien und ihren Zusammenhängen mit deren lernbezogenem Verhalten sowie den impliziten Theorien und dem Lern- und Leistungsverhalten ihrer Kinder werden vermittelnde Mechanismen diskutiert und es wird thematisiert, unter welchen Rahmenbedingungen implizite Theorien von Eltern besonders relevant erscheinen. Basierend darauf werden Forschungslücken aufgezeigt und theoretische und praktische Implikationen herausgearbeitet.
Neighbourhood Conditions and Quality of Life Among Local and Immigrant Population in Norway
Authors: Alvarez Ana Llopis , Müller-Eie Daniela 
Published: September 2022

AbstractThis paper explores the relationship between the quality of life and neighbourhood characteristics among immigrant and local population in Storhaug (Stavanger) and Grünerløkka (Oslo), two Norwegian neighbourhoods. The neighbourhood conditions have been analysed and inhabitants have been interviewed to collect objective and subjective data. Several dimensions have been considered, e.g., physical, environmental, mobility and psychological, with different indicators defining them. Objective data related to the physical layout, green spaces, transport system or environmental aspects are studied and complemented with the subjective information such as the satisfaction of the participants with these aspects. The data collection thus includes geographic, personal and qualitative data, and is analysed with the help of geographic and statistical analysis. Differences between the population groups and between the case study neighbourhoods are determined, being possible to conclude that specific neighbourhood conditions influence participants’ quality of life in these Norwegian minor settings. The local participants in this study are the ones taking more advantage of the physical, environmental and mobility dimensions at their residential area and reporting higher perceived quality of life. The results presented can provide relevant information for the effective and efficient planning and development of residential environments.
Analysis and potential ecological risk assessment of heavy metals in surface sediments of the freshwater ecosystem in Zhenjiang City, China
Authors: Liu Xin , Dadzie Adelaide Angela , Yuan Lubin , Xing Shuyu , Zhou Xiaohong , Xiao Sisi 
Published: September 2022

Abstract
Heavy metals contamination in freshwater ecosystems has drawn attention worldwide. It is necessary to investigate heavy metals content and assess their ecological risk in order to protect the aquatic ecosystems. In this study, we collected surface sediment samples from the freshwater ecosystem of the city of Zhenjiang, in China, in both winter and summer. Then, we analyzed the seasonal and spatial distribution patterns of lead (Pb), chromium (Cr), cadmium (Cd), zinc (Zn), and copper (Cu). The contamination factor (CF), enrichment factor (EF), geo-accumulation index (Igeo), and potential ecological risk (Eri) were jointly used to assess the pollution degree and the ecological risk posed to the freshwater ecosystem by the aforementioned elements. Multivariate statistical analysis, including Pearson’s correlation and principal component analysis and cluster analysis, were used to identify potential sources of the investigated metals in this research area. Study results showed that: (1) the average concentrations values were 1.81 mg/kg and 1.15 mg/kg for Cd, 55.3 mg/kg and 62.2 mg/kg for Cu, 88.0 mg/kg and 52.5 mg/kg for Cr, 27.3 mg/kg and 22.8 mg/kg for Pb, 87.0 mg/kg and 271 mg/kg for Zn, in winter and summer, respectively. Amongst the investigated elements, the average concentrations of Cd, Cu, Cr, and Pb, were above the local background values in winter, whereas, Cd, Cu and Zn concentrations were higher than the background values in Zhenjiang; (2) The CF and EF indicated that Cd had a high contamination degree and a significant enrichment compare to others investigated metals in the surface sediment of in this research area. (3) Cd posed moderate, considerable, or very high ecological risks in different sites, while the other elements (i.e., Cu, Cr, Pb, and Zn) presented a low degree of ecological risk. (4) Multivariate statistical analyses results indicated Pb, Cu, and Zn had similar geochemical characteristics, while, Cd and Cr had significant differences with the above elements. Therefore, Pb, Cu, and Zn probably originate from the same sources, while Cd and Cr might have mixed sources, including both natural sources and human activities. Overall, more attention should be paid to Cd for risk assessment in the current study area. The findings of this study provide fundamental information for the evaluation and management of the heavy metals investigated in the freshwater ecosystem of Zhenjiang.
Coculture engineering for efficient production of vanillyl alcohol in Escherichia coli
Authors: Yang Meichen , Meng Hao , Li Xianglai , Wang Jia , Shen Xiaolin , Sun Xinxiao , Yuan Qipeng 
Published: September 2022

Abstract
Vanillyl alcohol is a precursor of vanillin, which is one of the most widely used flavor compounds. Currently, vanillyl alcohol biosynthesis still encounters the problem of low efficiency. In this study, coculture engineering was adopted to improve production efficiency of vanillyl alcohol in E. coli. First, two pathways were compared for biosynthesis of the immediate precursor 3, 4-dihydroxybenzyl alcohol in monocultures, and the 3-dehydroshikimate-derived pathway showed higher efficiency than the 4-hydroxybenzoate-derived pathway. To enhance the efficiency of the last methylation step, two strategies were used, and strengthening S-adenosylmethionine (SAM) regeneration showed positive effect while strengthening SAM biosynthesis showed negative effect. Then, the optimized pathway was assembled in a single cell. However, the biosynthetic efficiency was still low, and was not significantly improved by modular optimization of pathway genes. Thus, coculturing engineering strategy was adopted. At the optimal inoculation ratio, the titer reached 328.9 mg/L. Further, gene aroE was knocked out to reduce cell growth and improve 3,4-DHBA biosynthesis of the upstream strain. As a result, the titer was improved to 559.4 mg/L in shake flasks and to 3.89 g/L in fed-batch fermentation. These are the highest reported titers of vanillyl alcohol so far. This work provides an effective strategy for sustainable production of vanillyl alcohol.
Deglobalizing the Global History of Europe
Authors: Sawyer Stephen W. 
Published: September 2022

Abstract
This article argues that recent global histories of Europe represent just one quite specific mode of global awareness in a long history of European global historical and social scientific consciousness. There is no doubt that our understanding of the European past would be more than ill-served by misplaced isolationism or the simple rejection of the massive scientific gains made by global history. Yet recent shifts in the structures, technologies, and modes of the globalization inherited from the post-Cold War world push us to reconsider how that global interconnectedness was achieved. European history after our most recent “global turn” must take into account previous modes of global consciousness and examine how globalization itself has been shaped by this knowledge. Indeed, past understanding of global interconnectedness did not necessarily lead to more open borders, increased interdependency, or growing cultural fluidity. Dis-integrating and downscaling modes of social organization were invented and reinvigorated in response to perceived global forces. There were also conscious attempts to channel the fruits and accumulations of global processes based on an awareness of their potentially enriching and destabilizing impact. These efforts to take control of globalization did not stop it, but they did give it a specific shape in particular moments. As a case in point, the article argues that the half-century following the French Revolution witnessed what might be called a deglobalizing globalization: a moment when the global integration that many considered responsible for the upheaval of the Revolution certainly did not stop, but was redirected in the service of a sovereign nation through the birth of new modes of social science and history writing.
Application of offset estimator of differential entropy and mutual information with multivariate data
Authors: Marín-Franch Iván , Sanz-Sabater Martín , Foster David H. 
Published: September 2022

Abstract
Numerical estimators of differential entropy and mutual information can be slow to converge as sample size increases. The offset Kozachenko–Leonenko (KLo) method described here implements an offset version of the Kozachenko–Leonenko estimator that can markedly improve convergence. Its use is illustrated in applications to the comparison of trivariate data from successive scene color images and the comparison of univariate data from stereophonic music tracks. Publicly available code for KLo estimation of both differential entropy and mutual information is provided for R, Python, and MATLAB computing environments at https://github.com/imarinfr/klo.
How sample bias affects the assessment of wine investment returns
Authors: Breeden Joseph L. 
Published: September 2022

AbstractWine investment returns can come from overall market trends or price increases with age. Because of the short wine price histories available, market and maturation effects are difficult to separate. Consequently, researchers often obtain dramatically different estimates of investment returns. We find that data sample bias may be the hidden cause of the disparate estimates. In wine auction data, the sample bias refers to a shift in the distribution of which wines are traded as a function of their age. Such sample bias in panel data sampled across many different wine labels can distort the estimation of price increases versus age and consequently impact the estimation of market trends. This analysis shows that segmenting the analysis such that the data panels contain wine labels with similar trading characteristics can lead to a more stable estimation.The analysis here looks at data from Bordeaux, Italy, Australia, and California. An Age-Period-Cohort (APC) analysis is applied to data panels from each region. Then the data in each region is segmented by a measure of popularity in order to reduce sampling bias. Data thus segmented is then re-analyzed to demonstrate the difference in estimating price appreciation lifecycles and market trends.
Semiconductor Catch-Up Is Not Enough: Twigging the Context of China's Ambitions
Authors: Kenney Martin , Lewin Arie Y. 
Published: September 2022

ABSTRACTThe extensive narrative of growth and development of the information and communication technologies (ICTs) in China by Jiang and Murmann (2022) and the discussion of Chinese strengths and weaknesses portray the remarkable progress that China has made, especially in technology relative to advances in the basic sciences. In our response, we situate their contribution in the larger context of Chinese economic growth and the challenges it faces in transforming these accomplishments into an embedded national capability to become a leading innovation economy and thereby deliver prosperity to its enormous but aging population. The contexts for the successes and weaknesses in ICT that Jiang and Murmann (2022) describe so admirably are vital for a more comprehensive understanding of their place in the overall development of China.
EVALUATION OF CERTAIN EXOTIC (1)-SERIES
Authors: CHEN MARTA NA , CHU WENCHANG 
Published: September 2022

AbstractA class of exotic
$_3F_2(1)$
-series is examined by integral representations, which enables the authors to present relatively easier proofs for a few remarkable formulae. By means of the linearization method, these
$_3F_2(1)$
-series are further extended with two integer parameters. A general summation theorem is explicitly established for these extended series, and several sample summation identities are highlighted as consequences.
WHEN IS A COMPLETION OF THE UNIVERSAL ENVELOPING ALGEBRA A BANACH PI-ALGEBRA?
Authors: ARISTOV O. YU. 
Published: September 2022

AbstractWe prove that a Banach algebraBthat is a completion of the universal enveloping algebra of a finite-dimensional complex Lie algebra$\mathfrak {g}$satisfies a polynomial identity if and only if the nilpotent radical$\mathfrak {n}$of$\mathfrak {g}$is associatively nilpotent inB. Furthermore, this holds if and only if a certain polynomial growth condition is satisfied on$\mathfrak {n}$.
Mario Vargas Llosa versus Barbarism
Authors: De Castro Juan E. 
Published: September 2022

AbstractThis article studies how the Peruvian novelist Mario Vargas Llosa and, more generally, neoliberalism rearticulate the opposition between civilization and barbarism, and the vision of the world that underlies it. During a time in which many intellectuals have embraced a relativistic notion of culture that makes judgment problematic, neoliberals embrace this clear-cut value hierarchy with complete abandonment. In fact, one cannot but be surprised by the ease with which Vargas Llosa makes pronouncements based on the identification of individuals, groups, and political movements with either civilization or barbarism. However, the fact is that his reference to this dichotomy differs substantially from its nineteenth-century version and its colonial precedents. The implicitly racial hierarchization proposed by Domingo Faustino Sarmiento and other nineteenth-century thinkers has been replaced in Vargas Llosa's writings by one based on cultural and social values.
Electoral Revolution or Democratic Alternation?
Authors: Murillo María Victoria , Oliveros Virginia , Vaishnav Milan 
Published: September 2022

AbstractOver the past few years, a burgeoning literature on Latin American politics has developed, focusing on explanations for the renewed success of the left in the region. Building on electoral trends and public opinion analysis, we argue that the region is experiencing the normalization of democratic politics rather than a backlash or a revolution. Furthermore, we believe that electoral support for the left reflects the disenchantment of voters with underperforming right-wing governments. Using a unique data set covering eighteen countries in the region, our statistical analyses demonstrate that retrospective voting provides a powerful explanation of the recent electoral success of the left in Latin America. Thus, the central implication of our argument is that electoral accountability is still the primary mechanism of controlling the executive in the region's young democracies.
Feeling disabled: Vowel quality and assistive hearing devices in embodying affect
Authors: Wan Tsung-Lun Alan , Hall-Lew Lauren , Cowie Claire 
Published: September 2022

AbstractPrevious research has proposed that phonetic variation may index affect prior to indexing other social meanings. This study explores whether the affective indexicality of vowels identified in previous studies can also be observed among deaf or hard-of-hearing speakers, in this case, speakers of Taiwan Mandarin. The results suggest that /i/ backing is invoked to signal negative affect. This study also demonstrates how assistive devices like hearing aids and cochlear implants can be considered semiotic resources. For deaf or hard-of-hearing speakers, assistive hearing devices enter into a process of bricolage with linguistic and other symbolic resources, generating new potentials for the embodiment of affect. (Affect, iconicity, Taiwan Mandarin, embodied sociolinguistics, deafness)*
Small non-Leighton two-complexes
Authors: DERGACHEVA NATALIA S. , KLYACHKO ANTON A. 
Published: September 2022

AbstractHow many 2-cells must two finite CW-complexes have to admit a common, but not finite common, covering? Leighton’s theorem says that both complexes must have 2-cells. We construct an almost (?) minimal example with two 2-cells in each complex.
A self-report assessment of appearance-related safety behaviours: Development and psychometric properties
Authors: Patel Tapan A. , Stewart Rochelle A. , Summers Berta J. , Wilver Natalie L. , Cougle Jesse R. 
Published: September 2022

AbstractBackground:Individuals with appearance concerns may engage in maladaptive appearance-related safety behaviours aimed at checking, hiding or fixing perceived flaws in their appearance.Aims:This investigation examined the psychometric properties of a newly developed measure of appearance-related safety behaviours across three different studies.Method:The first two studies utilized exploratory and confirmatory factor analysis, respectively, to understand the factor structure of the measure. The final version of the Appearance-Related Safety Behavior Scale (ARSB) consisted of 13 items and two subscales related to behavioural avoidance and appearance maintenance.Results:Number of appearance-related safety behaviours was positively associated with body dysmorphic disorder symptomology and functional impairment, as well as social anxiety and eating disorder symptoms. The measure also demonstrated convergent validity with other appearance-related measures. Scores on the ARSB also predicted performance on an appearance-related behavioural task (time spent fixing appearance prior to having a picture taken). The third study found that scores on the ARSB were higher in a body dysmorphic disorder sample compared with healthy controls. Furthermore, change in scores on the ARSB was correlated with change in body dysmorphic disorder symptoms and impairment in a treatment study for body dysmorphic disorder.Conclusions:Clinical implications and potential uses of the measure as a clinical and research tool are discussed.
A neuropsychologically based employment intervention for women with multiple sclerosis: A quasi-randomized controlled trial
Authors: Stimmel Marnina B. , Cohen Jenna N. , Seng Elizabeth K. , Shagalow Shaina , Foley Frederick W. 
Published: September 2022

AbstractObjective:Job loss is common in multiple sclerosis (MS) and frequently associated with depression, fatigue, and cognitive dysfunction. Identifying these modifiable risk factors and providing “at-risk” women with a neuropsychologically-based intervention may improve employment outcomes. Our study seeks to investigate the utility of a neuropsychologically-based intervention with varying levels of treatment and follow-up, and evaluate treatment and employment outcomes among groups.Method:In this longitudinal, quasi-randomized controlled trial, employed women with MS meeting criteria on screening measures were considered “at-risk” for job instability and randomized to one of two neuropsychological testing interventions (standard-care group received testing and phone feedback of results and recommendations; experimental group received testing and in-person feedback with subsequent care-coordinator calls from a nurse to help coordinate recommendation completion). Participants who did not meet criteria were considered “low-risk” and only followed over time.Results:56 women in the treatment groups (standard-care = 23; experimental = 33) and 63 women in the follow-only group were analyzed at 1 year. Rates of decreased employment were similar between standard-care (17.4%) and experimental (21.2%) groups (OR = .782, 95% CI .200–3.057). However, the experimental group completed significantly more treatment recommendations, t(53) = −3.237, p = .002. Rates of decreased employment were also similar between the “low-risk” (17.5%) and “at-risk” groups (19.6%), (OR = .721, 95% CI .285–1.826).Conclusion:Employment outcomes were similar at 1 year between treatment groups receiving differing levels of a neuropsychologically-based intervention, however treatment adherence significantly improved in the experimental group. Treatment groups also had similar employment outcomes as compared to a “low-risk,” no intervention group, suggesting that engaging in either neuropsychological intervention may have impacted job stability.
Reduplicative paramnesia as an atypical form of presentation of a Heidenhain variant of Creutzfeldt-Jakob disease: A case report
Authors: Martinez-Horta Saul , Marzal-Espí Clara Naima , Cusó-García Silvia , Aracil-Bolaños Ignacio , Kulisevsky Jaime 
Published: September 2022

AbstractA previously healthy woman began to present recurrent episodes of reduplicative paramnesia within her home and later structured visual hallucinations. The case was initially oriented as an incipient vascular dementia. Detailed anamnesis and neuropsychological examination suggested a rapidly progressive pattern of neuropsychological deficits mostly attributable to parieto-occipital disturbances with some component of fronto-temporal involvement. Subsequently, cerebellar symptoms were added. Although the initial imaging studies were inconclusive, the MRI performed during follow-up showed a series of findings compatible with a prion disease. Based on the neuropsychological and clinical features and the imaging pattern, the diagnosis of Heidenhain Variant of Creutzfeldt-Jakob disease was established. This is the first report of a Heidenhain Variant of Creutzfeldt-Jakob disease presenting as a reduplicative paramnesia as the first manifestation of this disease.