bluuebunny/crossref_metadata_2025_split huggingface dataset:
Artificial Intelligence and Business Value: a Literature Review
Authors: Enholm Ida Merete , Papagiannidis Emmanouil , Mikalef Patrick , Krogstie John 
Published: August 2021

AbstractArtificial Intelligence (AI) are a wide-ranging set of technologies that promise several advantages for organizations in terms off added business value. Over the past few years, organizations are increasingly turning to AI in order to gain business value following a deluge of data and a strong increase in computational capacity. Nevertheless, organizations are still struggling to adopt and leverage AI in their operations. The lack of a coherent understanding of how AI technologies create business value, and what type of business value is expected, therefore necessitates a holistic understanding. This study provides a systematic literature review that attempts to explain how organizations can leverage AI technologies in their operations and elucidate the value-generating mechanisms. Our analysis synthesizes the current literature and highlights: (1) the key enablers and inhibitors of AI adoption and use; (2) the typologies of AI use in the organizational setting; and (3) the first- and second-order effects of AI. The paper concludes with an identification of the gaps in the literature and develops a research agenda that identifies areas that need to be addressed by future studies.
Analytical angular solutions for the atom–diatom interaction potential in a basis set of products of two spherical harmonics: two approaches
Authors: Pawlak Mariusz , Stachowiak Marcin 
Published: August 2021

AbstractWe present general analytical expressions for the matrix elements of the atom–diatom interaction potential, expanded in terms of Legendre polynomials, in a basis set of products of two spherical harmonics, especially significant to the recently developed adiabatic variational theory for cold molecular collision experiments [J. Chem. Phys. 143, 074114 (2015); J. Phys. Chem. A 121, 2194 (2017)]. We used two approaches in our studies. The first involves the evaluation of the integral containing trigonometric functions with arbitrary powers. The second approach is based on the theorem of addition of spherical harmonics.
Does agricultural intensification cause tipping points in ecosystem services?
Authors: Watson Stephen C. L. , Newton Adrian C. , Ridding Lucy E. , Evans Paul M. , Brand Steven , McCracken Morag , Gosal Arjan S. , Bullock James M. 
Published: August 2021

AbstractContextAgricultural intensification is being widely pursued as a policy option to improve food security and human development. Yet, there is a need to understand the impact of agricultural intensification on the provision of multiple ecosystem services, and to evaluate the possible occurrence of tipping points.ObjectivesTo quantify and assess the long-term spatial dynamics of ecosystem service (ES) provision in a landscape undergoing agricultural intensification at four time points 1930, 1950, 1980 and 2015.Determine if thresholds or tipping points in ES provision may have occurred and if there are any detectable impacts on economic development and employment.MethodsWe used the InVEST suite of software models together with a time series of historical land cover maps and an Input–Output model to evaluate these dynamics over an 85-year period in the county of Dorset, southern England.ResultsResults indicated that trends in ES were often non-linear, highlighting the potential for abrupt changes in ES provision to occur in response to slight changes in underlying drivers. Despite the fluctuations in provision of different ES, overall economic activity increased almost linearly during the study interval, in line with the increase in agricultural productivity.ConclusionsSuch non-linear thresholds in ES will need to be avoided in the future by approaches aiming to deliver sustainable agricultural intensification. A number of positive feedback mechanisms are identified that suggest these thresholds could be considered as tipping points. However, further research into these feedbacks is required to fully determine the occurrence of tipping points in agricultural systems.
Metasequents and Tetravaluations
Authors: French Rohan 
Published: August 2021

AbstractIn this paper we treat metasequents—objects which stand to sequents as sequents stand to formulas—as first class logical citizens. To this end we provide a metasequent calculus, a sequent calculus which allows us to directly manipulate metasequents. We show that the various metasequent calculi we consider are sound and complete w.r.t. appropriate classes of tetravaluations where validity is understood locally. Finally we use our metasequent calculus to give direct syntactic proofs of various collapse results, closing a problem left open in French (Ergo, 3(5), 113–131 2016).
A mortar formulation for frictionless line-to-line beam contact
Authors: Bosten Armin , Cosimo Alejandro , Linn Joachim , Brüls Olivier 
Published: August 2021

AbstractThis paper describes the quasi-static formulation of frictionless line contact between flexible beams by employing the mortar finite element approach. Contact constraints are enforced in a weak sense along the contact region using Lagrange multipliers. A simple projection appropriate for thin beams with circular cross-sections is proposed for the computation of contact regions. It is combined with the geometrically exact beam formalism on the Lie group $SE(3)$
S
E
(
3
)
. Interestingly, this framework leads to a constraint gradient and a tangent stiffness invariant under rigid body transformations. The formulation is tested in some numerical examples.
Monitoring or payroll maximization? What happens when workers enter the boardroom?
Authors: Gleason Cristi A. , Kieback Sascha , Thomsen Martin , Watrin Christoph 
Published: August 2021

AbstractWe examine whether worker representation on corporate boards results in improved monitoring or payroll maximization. Several economic theories predict that worker representatives would use control and voting rights in the boardroom to transform firm assets into private benefits and increased wages, but labor contract models suggest that workers’ inside information should permit improved monitoring. To investigate this conflict, we use mandatory worker representation on corporate boards in Germany. Using hand-collected data, our results suggest that the worker representatives’ payroll maximization incentives dominate their monitoring duties. Specifically, worker representatives reduce real earnings management when it results in wage cuts or job losses but not when it increases payroll or job security. Similarly, worker representatives are generally associated with improved monitoring of tax planning activities. However, when the risk of offshoring jobs is high, worker representatives do not promote tax planning for low-aggression firms and instead block aggressive tax planning for high-aggression firms. This evidence helps policymakers and researchers better understand the role of workers in corporate governance systems and contributes to the ongoing public debate about introducing worker representation in the United States and the United Kingdom.
Solar Rotation Multiples in Space-Weather Effects
Authors: Gil Agnieszka , Modzelewska Renata , Wawrzaszek Anna , Piekart Bozena , Milosz Tadeusz 
Published: August 2021

AbstractThe solar rotation period is the most prominent mid-term periodicity in the temporal behaviour of solar, heliospheric, and geomagnetic parameters. It is also a cause of the repeatedly appearing geomagnetic storms originating from the corotating interaction regions (CIRs). Since geomagnetic CIR-driven storms have a natural periodic character, and geomagnetic storms impact energy infrastructure via geomagnetically induced currents, it is of interest whether this periodic character is also noticeable in the temporal behaviour of electrical-grid failures (EGFs), which, at least to some extent, might be of solar origin.
From groundlessness—to freedom: The theme of ‘awakening’ in the thought of Lev Shestov
Authors: Ogden Marina G. 
Published: August 2021

AbstractThe philosopher Lev Shestov aimed to establish a new free way of thinking, which manifested itself as a struggle against the delusion that we have a rational grasp of the necessary truths on matters that are of the greatest importance to us, such as the questions of life and death. Philosophy, as the Russian philosopher understood it, is not pure thinking, but ‘some kind of inner doing, inner regeneration, or second birth’ (Shestov in Lektsii po Istorii Grecheskoi Filosofii [Lectures on the history of Greek philosophy], YMCA-PRESS, Moscow, 2001, p. 53). Having adopted the notion of the ‘regeneration of one’s convictions’ from Dostoevsky’s vocabulary in his earlier works, Shestov developed the idea of ‘awakening’ further in his mature thought, in which the motif of ‘awakening’ comprised one of the main ideas of his philosophy: the fight for the individual’s right to freedom and to creative transformation at a time when she is in despair or on the brink of death. In this article, I analyse Shestov’s idea of ‘awakening’ as one of the key tropes and developmental characteristics of his philosophical vision. In particular, I argue that, having stemmed from Shestov’s earlier interpretations of Dostoevsky, Shakespeare and Plotinus, in his later writings, the notion of ‘awakening’—the possibility of a fundamental, inner transformation of one’s worldview (probuzhdenie, pererozhdenie)—marked the beginning of a new salvific mode in his writing.
MPI-dot2dot: A parallel tool to find DNA tandem repeats on multicore clusters
Authors: González-Domínguez Jorge , Martín-Martínez José M. , Expósito Roberto R. 
Published: August 2021

AbstractTandem Repeats (TRs) are segments that occur several times in a DNA sequence, and each copy is adjacent to other. In the last few years, TRs have gained significant attention as they are thought to be related with certain human diseases. Therefore, identifying and classifying TRs have become a highly important task in bioinformatics in order to analyze their disorders and relationships with illnesses. Dot2dot, a tool recently developed to find TRs, provides more accurate results than the previous state-of-the-art, but it requires a long execution time even when using multiple threads. This work presents MPI-dot2dot, a novel version of this tool that combines MPI and OpenMP so that it can be executed in a cluster of multicore nodes and thus reduces its execution time. The performance of this new parallel implementation has been tested using different real datasets. Depending on the characteristics of the input genomes, it is able to obtain the same biological results as Dot2dot but more than 100 times faster on a 16-node multicore cluster (384 cores). MPI-dot2dot is publicly available to download from https://sourceforge.net/projects/mpi-dot2dot.
A NOMA-Combined Hybrid Approach for SDMA Improvement in Wireless Powered Communication Networks
Authors: Maeng Juhyun , Dahouda Mwamba Kasongo , Joe Inwhee 
Published: August 2021

AbstractWireless Powered Communication Network (WPCN) consists of Hybrid Access Point (HAP) that performs power transmission and data collection at the same time, and multiple nodes that can transmit data. In WPCN, depending on the wireless communication environment, the nodes cannot be able to transmit data because they can fail to receive power. Hence, increasing the transmission rate under a given resource is one of the very important issues. In ordinary mobile communications, a cell is divided into several sectors and the data is collected through multiple antennas to increase the transmission rate using SDMA. As a result, if the number of nodes in the one sector increases, the interference between nodes increases, and the transmission rate may decrease. Accordingly, in order to maximize performance, the number of nodes that can exist in a sector must be limited. The transmission rate between nodes according to the distance difference may not be fair because the nodes far from the HAP charge a small amount of power by attenuation of the signal, and the nodes close to the HAP charge a relatively large amount of power. Therefore, we propose Hybrid SDMA and Non-Orthogonal Multiple Access (NOMA) as a way to maximize the performance in term of both Sum-Throughput and Fairness. Also, we prove that there is a tradeoff between Sum-Throughput and Fairness according to the number of sectors. The simulation results show that the Hybrid SDMA and NOMA improves the performance substantially compared to the conventional SDMA.
Aberrant Cerebello-Cerebral Connectivity in Remitted Bipolar Patients 1 and 2: New Insight into Understanding the Cerebellar Role in Mania and Hypomania
Authors: Olivito Giusy , Lupo Michela , Gragnani Andrea , Saettoni Marco , Siciliano Libera , Pancheri Corinna , Panfili Matteo , Cercignani Mara , Bozzali Marco , Chiaie Roberto Delle , Leggio Maria 
Published: August 2021

AbstractBipolar disorder (BD) is a major mental illness characterized by periods of (hypo) mania and depression with inter-episode remission periods. Functional studies in BD have consistently implicated a set of linked cortical and subcortical limbic regions in the pathophysiology of the disorder, also including the cerebellum. However, the cerebellar role in the neurobiology of BD still needs to be clarified. Seventeen euthymic patients with BD type1 (BD1) (mean age/SD, 38.64/13.48; M/F, 9/8) and 13 euthymic patients with BD type 2 (BD2) (mean age/SD, 41.42/14.38; M/F, 6/7) were compared with 37 sex- and age-matched healthy subjects (HS) (mean age/SD, 45.65/14.15; M/F, 15/22). T1 weighted and resting-state functional connectivity (FC) scans were acquired. The left and right dentate nucleus were used as seed regions for the seed based analysis. FC between each seed and the rest of the brain was compared between patients and HS. Correlations between altered cerebello-cerebral connectivity and clinical scores were then investigated. Different patterns of altered dentate-cerebral connectivity were found in BD1 and BD2. Overall, impaired dentate-cerebral connectivity involved regions of the anterior limbic network specifically related to the (hypo)manic states of BD. Cerebello-cerebral connectivity is altered in BD1 and BD2. Interestingly, the fact that these altered FC patterns persist during euthymia, supports the hypothesis that cerebello-cerebral FC changes reflect the neural correlate of subthreshold symptoms, as trait-based pathophysiology and/or compensatory mechanism to maintain a state of euthymia.
Brief Online Negative Affect Focused Functional Imagery Training Improves 2-Week Drinking Outcomes in Hazardous Student Drinkers: a Pilot Randomised Controlled Trial
Authors: Shuai Ruichong , Bakou Alexandra Elissavet , Andrade Jackie , Hides Leanne , Hogarth Lee 
Published: August 2021

Abstract
Background
Negative affect plays an important role in motivating problematic alcohol use. Consequently, training imagery-based adaptive responses to negative affect could reduce problematic alcohol use. The current study tested whether personalised online functional imagery training (FIT) to utilise positive mental imagery in response to negative affect would improve drinking outcomes in hazardous negative affect drinking students.

Method
Participants were 52 hazardous student drinkers who drink to cope with negative affect. Participants in the active group (n = 24) were trained online over 2 weeks to respond to personalised negative drinking triggers by retrieving a personalised adaptive strategy they might use to mitigate negative affect, whereas participants in the control group (n = 28) received standard risk information about binge drinking at university. Measures of daily drinking quantity, drinking motives, self-efficacy and use of protective behavioural strategies were obtained at baseline and 2 weeks follow-up.

Results
There were three significant interactions between group and time in a per-protocol analysis: the active intervention group showed increased self-efficacy of control over negative affect drinking and control over alcohol consumption and decreased social drinking motives from baseline to 2-week follow-up, relative to the control intervention group. There were no effects on drinking frequency.

Conclusion
These findings provide initial evidence that online training to respond to negative affect drinking triggers by retrieving mental imagery of adaptive strategies can improve drinking-related outcomes in hazardous, student, negative affect drinkers. The findings support the utility of FIT interventions for substance use.
Markov Chain Analysis of Rainfall over East Asia: Unusual Frequency, Persistence, and Entropy in the Summer 2020
Authors: Lee Yoon-Kyoung , Kim Hye-Sil , Kim Jung-Eun Esther , Choi Yong-Sang , Yoo Changhyun 
Published: August 2021

AbstractRecord-breaking rainfall occurred over East Asia during the summer of 2020. However, in which aspect the summer of 2020 can be differentiated from the other years remains to be quantified. To this end, this study employs Markov chain analysis to quantify summer rainfall variability over East Asia using three Markov descriptors for heavy precipitation events of over 10 mm day−1: frequency, persistence, and entropy (i.e., irregularity). It is found that the heavy rainfall during the summer of 2020 can be attributed to an anomalously high frequency of rainfall in the central China and Japan and greater rainfall persistence over eastern China and Korea. Empirical orthogonal functions (EOFs) are used to analyze interannual variation in the descriptors using a few primary modes. For the summer 2020 period, the first and second modes for frequency account for the enhanced frequency over central China, and this is linked to sea surface temperature anomalies over the North Pacific, the equatorial eastern Pacific, and tropical Indian Ocean. For persistence, the first mode dominates the anomalous rainfall persistence observed during the summer of 2020. Similar but weak behavior can be also seen by the modes for entropy.
A Comparative Study on the Microbial Communities of Rhynchophorus ferrugineus (Red Palm Weevil)-Infected and Healthy Palm Trees
Authors: Alshammari N. , Alazmi Meshari , Alanazi Naimah A. , Sulieman Abdel Moneim E. , Veettil Vajid N. , Ponce-Alonso Manuel 
Published: August 2021

AbstractSeveral studies have investigated palm trees’ microbiota infected with red palm weevil (RPW) (Rhynchophorus ferrugineus), the major pest of palm trees. This study compared the microbial communities of infected and uninfected palm trees in the Hail region, Northern Saudi Arabia, determined by high-throughput 16S rRNA gene sequencing by Illumina MiSeq. The results indicated that taxonomic diversity variation was higher for infected tree trunk than the healthy tree trunk. Soil samples from the vicinity of healthy and infected trees did not have a significant variation in bacterial diversity. Myxococcota, Acidobacteriota, and Firmicutes were the dominant phyla in RPW-infected tree trunk, and Pseudomonadaceae was the most prominent family. This study is the first report on the characterization of RPW-infected and healthy palm trees’ microbiome.
Epidemiological models and COVID-19: a comparative view
Authors: Iranzo Valeriano , Pérez-González Saúl 
Published: August 2021

AbstractEpidemiological models have played a central role in the COVID-19 pandemic, particularly when urgent decisions were required and available evidence was sparse. They have been used to predict the evolution of the disease and to inform policy-making. In this paper, we address two kinds of epidemiological models widely used in the pandemic, namely, compartmental models and agent-based models. After describing their essentials—some real examples are invoked—we discuss their main strengths and weaknesses. Then, on the basis of this analysis, we make a comparison between their respective merits concerning three different goals: prediction, explanation, and intervention. We argue that there are general considerations which could favour any of those sorts of models for obtaining the aforementioned goals. We conclude, however, that preference for particular models must be grounded case-by-case since additional contextual factors, as the peculiarities of the target population and the aims and expectations of policy-makers, cannot be overlooked.
Prävention und Management von COVID-19-Ausbrüchen auf Handelsschiffen
Authors: Dengler Dorothee , von Münster Thomas , Kordsmeyer Ann-Christin , Belz Lukas , Mojtahedzadeh Natascha , Heidrich Jan , Hewelt Elisabeth , Dirksen-Fischer Martin , Boldt Matthias , Harth Volker , Oldenburg Marcus 
Published: August 2021

Zusammenfassung
Hintergrund
Eine Pandemie ist eine besondere medizinische Herausforderung für Seeleute, die ohne Arzt/Ärztin an Bord unterwegs sind. Gleichzeitig ist es eine Notwendigkeit für die weltweite Bekämpfung der COVID-19-Pandemie, Warenströme durch eine widerstandsfähige Handelsschifffahrt aufrechtzuerhalten. Für die Infektionsprävention und das Infektionsmanagement an Bord benötigen Verantwortliche ein Portfolio von Schutzmaßnahmen, die auf Schiffen angewendet werden können.

Fragestellung
In der Übersicht wird der Fragestellung nachgegangen, welche technischen, organisatorischen und persönlichen Schutzmaßnahmen auf einem Handelsschiff angewandt werden können, um COVID-19-Ausbrüche an Bord zu verhindern oder bewältigen zu können.

Material und Methoden
Richtlinien, Informationen und Arbeitsschutzstandards aus dem maritimen Setting, aber auch aus anderen Arbeitsbereichen wurden gesichtet, damit Verantwortliche diese angepasst an die Lage (z. B. Schiffsgröße, Ausstattung, Witterung, Betriebszustand, Arbeitsanforderungen, Kontakt mit Schiffsfremden, medizinische Probleme) variabel einsetzen können.

Ergebnisse
Eine Handreichung, die konkrete, im maritimen Kontext erklärte technische, organisatorische und persönliche Schutzmaßnahmen für Crews zur anlassbezogenen Nutzung enthält, wurde erstellt. Kombinationsmöglichkeiten und Timing von Sicherheitsbarrieren werden darin zielgruppenorientiert erklärt.

Fazit
Eine Fülle der aus arbeitsmedizinischer Literatur und den Erfahrungen des Hafenärztlichen Dienstes in Hamburg abgeleiteten Schutzmaßnahmen sind auf hoher See umsetzbar. Handelsschiffe sollten in Pandemiezeiten vorausschauend ausgestattet (z. B. mit Schnelltests) und Verantwortliche ermächtigt werden, begründete Infektionsschutzmaßnahmen angepasst an die Situation an Bord einzusetzen. Seeleute sollten unabhängig von ihrer nationalen Herkunft prioritäre Impfangebote erhalten.