bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efficient Implementation of Complex Multipliers on FPGAs Using DSP Slices
Authors: Paz Pedro , Garrido Mario 
Published: April 2023

AbstractIn this paper, we propose two efficient implementations of complex multipliers on field-programmable gate arrays (FPGAs) using DSP slices. The first implementation aims for high throughput and the second one for low area. By mapping these circuits to the DSP slices in the FPGA, the proposed implementations have the advantage that they only require three DSP slices. Experimental results show that the proposed high-throughput implementation saves hardware resources with respect to previous approaches, while reaching the highest achievable clock frequency. Alternatively, the proposed low-area implementation reduces the amount of hardware resources even further at the cost of reducing the clock frequency.
Do teaching staff trust stakeholders and tools in learning analytics? A mixed methods study
Authors: Alzahrani Asma Shannan , Tsai Yi-Shan , Aljohani Naif , Whitelock-wainwright Emma , Gasevic Dragan 
Published: April 2023

AbstractLearning analytics (LA) has gained increasing attention for its potential to improve different educational aspects (e.g., students’ performance and teaching practice). The existing literature identified some factors that are associated with the adoption of LA in higher education, such as stakeholder engagement and transparency in data use. The broad literature on information systems also emphasizes the importance of trust as a critical predictor of technology adoption. However, the extent to which trust plays a role in the adoption of LA in higher education has not been examined in detail in previous research. To fill this literature gap, we conducted a mixed method (survey and interviews) study aimed to explore how much teaching staff trust LA stakeholders (e.g., higher education institutions or third-parties) and LA technology, as well as the trust factors that could hinder or enable adoption of LA. The findings show that the teaching staff had a high level of trust in the competence of higher education institutions and the usefulness of LA; however, the teaching staff had a low level of trust in third parties that are involved in LA (e.g., external technology vendors) in terms of handling privacy and ethics-related issues. They also had a low level of trust in data accuracy due to issues such as outdated data and lack of data governance. The findings have strategic implications for institutional leaders and third parties in the adoption of LA by providing recommendations to increase trust, such as, improving data accuracy, developing policies for data sharing and ownership, enhancing the consent-seeking process, and establishing data governance guidelines. Therefore, this study contributes to the literature on the adoption of LA in HEIs by integrating trust factors.
Associations between personality and humor structure appreciation
Authors: Sulejmanov Filip , Dostál Daniel , Grundman Václav , Ruch Willibald 
Published: April 2023

AbstractThe current study investigates the associations between personality and humor structure appreciation. A total of 509 participants completed the Big Five Inventory–2 and the Humor Structure Appreciation Scale. The results showed that, as expected, open-mindedness was associated with a preference for nonsense (NON) over incongruity-resolution (INC-RES) humor, and it was negatively related to the aversiveness scores of NON humor. On the other hand, conscientiousness correlated with a preference for INC-RES over NON humor, and the facet of organization accounted primarily for this relationship. Focusing on the facets of open-mindedness, we found that aesthetic sensitivity and intellectual curiosity were related to preferring jokes with residual incongruities (NON humor) over jokes with a full resolution (INC-RES humor). Finally, we confirmed that extraverted individuals enjoyed humor more of all types, whereas negative emotionality related to generally finding both types of humor as not funny, but there was no significant association between negative emotionality and the total aversiveness score. The results are discussed in relation to previous theoretical accounts and empirical findings, and future avenues for further research are considered.
How to design platform ecosystems by intrapreneurs: Implications from action design research on IoT-based platform
Authors: Inoue Yuki , Takenaka Takeshi , Kasasaku Takami , Tamegai Tadafumi , Arai Ryohei 
Published: April 2023

AbstractThe recent technological evolution of the Internet of Things (IoT) and data sciences has created opportunities for intrapreneurs in non-platform firms to expand their businesses into platform ecosystem-related businesses. However, previous studies have typically focused on cases involving entrepreneurs. This study aims to clarify how intrapreneurs’ design for platform ecosystems could be different from that of entrepreneurs. We conducted an action design research (ADR) project in collaboration with a company for 29 months, and designed a platform ecosystem structure based on technological platforms related to radio frequency identifiers (RFID). Our main contribution is the following six-step process that describes how intrapreneurs design platform ecosystems: (1) designing an initial ecosystem structure based on platform ecosystem concepts and certain concepts related to the targeted market; (2) analyzing past business cases; (3) making the ecosystem structure into concrete shape; (4) verifying its validity; (5) elaborating the ecosystem structure; and (6) proposing the designed ecosystem business. Our findings highlight the differences between intrapreneurs’ and entrepreneurs’ designs of the ecosystem. First, when the design processes are underway, the direction of the design of the ecosystem needs to be flexibly modified to align with the strategy of the firm. Second, evidence for the success of the proposed platform ecosystem is required to reduce uncertainty and clarify the legitimacy of the proposition. Third, the structure of a platform ecosystem designed by intrapreneurs becomes a style that supports the existing businesses and networks of the firm.
City 5.0: Citizen involvement in the design of future cities
Authors: Becker Jörg , Chasin Friedrich , Rosemann Michael , Beverungen Daniel , Priefer Jennifer , Brocke Jan vom , Matzner Martin , del Rio Ortega Adela , Resinas Manuel , Santoro Flavia , Song Minseok , Park Kangah , Di Ciccio Claudio 
Published: April 2023

Abstract
A citizen-centric view is key to channeling technological affordances into the development of future cities in which improvements are made with the quality of citizens’ life in mind. This paper proposes City 5.0 as a new citizen-centric design paradigm for future cities, in which cities can be seen as markets connecting service providers with citizens as consumers. City 5.0 is dedicated to eliminating restrictions that citizens face when utilizing city services. Our design paradigm focuses on smart consumption and extends the technology-centric concept of smart city with a stronger view on citizens’ roadblocks to service usage. Through a series of design workshops, we conceptualized the City 5.0 paradigm and formalized it in a semi-formal model. The applicability of the model is demonstrated using the case of a telemedical service offered by a Spanish public healthcare service provider. The usefulness of the model is validated by qualitative interviews with public organizations involved in the development of technology-based city solutions. Our contribution lies in the advancement of citizen-centric analysis and the development of city solutions for both academic and professional communities.
Effects of sequential decay on collective flows and nuclear stopping power in heavy-ion collisions at intermediate energies
Authors: Xiao Kui , Li Peng-Cheng , Wang Yong-Jia , Liu Fu-Hu , Li Qing-Feng 
Published: April 2023

AbstractIn this study, the rapidity distribution, collective flows, and nuclear stopping power in $$^{197}$$

197

Au+$$^{197}$$

197

Au collisions at intermediate energies were investigated using the ultrarelativistic quantum molecular dynamics (UrQMD) model with GEMINI++ code. The UrQMD model was adopted to simulate the dynamic evolution of heavy-ion collisions, whereas the GEMINI++ code was used to simulate the decay of primary fragments produced by UrQMD. The calculated results were compared with the INDRA and FOPI experimental data. It was found that the rapidity distribution, collective flows, and nuclear stopping power were affected to a certain extent by the decay of primary fragments, especially at lower beam energies. Furthermore, the experimental data of the collective flows and nuclear stopping power at the investigated beam energies were better reproduced when the sequential decay effect was included.
Polynomial mean complexity and logarithmic Sarnak conjecture
Authors: HUANG WEN , XU LEIYE , YE XIANGDONG 
Published: April 2023

AbstractIn this paper, we reduce the logarithmic Sarnak conjecture to the
$\{0,1\}$
-symbolic systems with polynomial mean complexity. By showing that the logarithmic Sarnak conjecture holds for any topologically dynamical system with sublinear complexity, we provide a variant of the
$1$
-Fourier uniformity conjecture, where the frequencies are restricted to any subset of
$[0,1]$
with packing dimension less than one.
Global rigidity of higher rank lattice actions with dominated splitting
Authors: LEE HOMIN 
Published: April 2023

AbstractLet
$\alpha $
be a
$C^{\infty }$
volume-preserving action on a closed n-manifold M by a lattice
$\Gamma $
in
$\mathrm {SL}(n,\mathbb {R})$
,
$n\ge 3$
. Assume that there is an element
$\gamma \in \Gamma $
such that
$\alpha (\gamma )$
admits a dominated splitting. We prove that the manifold M is diffeomorphic to the torus
${{\mathbb T}^{n}={\mathbb R}^{n}/{\mathbb Z}^{n}}$
and
$\alpha $
is smoothly conjugate to an affine action. Anosov diffeomorphisms and partial hyperbolic diffeomorphisms admit a dominated splitting. We obtained a topological global rigidity when
$\alpha $
is
$C^{1}$
. We also prove similar theorems for actions on
$2n$
-manifolds by lattices in
$\textrm {Sp}(2n,{\mathbb R})$
with
$n\ge 2$
and
$\mathrm {SO}(n,n)$
with
$n\ge 5$
.
Examining the impact of schizotypal personality traits on event-related potential (ERP) indexes of sensory gating in a healthy population
Authors: Francis Ashley M. , Anderson T-Jay , Ross Lauren , Bissonnette Jenna N. , Napier Kaitlyn R. , Shead N. W. , Fisher Derek J. 
Published: April 2023

Abstract
The aim of this study was to better understand the relation of schizotypy traits with sensory gating ability in a sample of community-dwelling individuals with high and low schizotypy traits. Sensory gating was assessed through the paired click paradigm and mid-latency evoked responses (i.e., P50, N100, P200), while schizotypy traits were assessed through the SPQ-BR which was used to classify participants into “high” and “low” schizotypy groups. Based on prior work, we hypothesized that those with the highest schizotypy scores would have reduced sensory gating ability. While this study does not show differences between relatively low and high schizotypy groups on sensory gating ability, it does suggest that our participants may have been experiencing deficits in attention allocation, a downstream cognitive processing measure. Scores on the SPQ-BR suggest that our sample was not close to the high end of the schizotypy traits which may help explain why no differences were found. This research shows the importance of including all levels of schizotypy ratings in clinical research as we can gain a clearer view of the impact of schizotypy on the brain and cognitive functioning in those with “high” levels of schizotypy. Additionally, this work highlights the importance of including measures of important factors such as impulsivity and sensation-seeking to better understand what aspects of schizotypy may be driving these sensory gating alterations reported in the literature.
Weight loss associated with low-energy diets with different glycaemic loads does not improve arterial stiffness: a randomised clinical trial
Authors: Perin Lisiane , Camboim Isadora G. , Schneider Cláudia D. , Lehnen Alexandre M. 
Published: April 2023

AbstractWe evaluated the effects of two low-energy diets with different glycaemic loads on arterial stiffness in adults with excess weight. This was a 45-day parallel-group, randomised clinical trial including seventy-five participants (20–59 years; BMI 32 kg/m2). They were assigned to two similar low-energy diets (reduction of ∼750 kcal.d−1) with macronutrient composition (55 % carbohydrates, 20 % proteins and 25 % lipids) but different glycaemic loads: high-glycaemic load (HGL 171 g.d−1; n 36) or low-glycaemic load (LGL 67 g.d−1; n 39). We evaluated: arterial stiffness (pulse wave velocity, PWV); augmentation index (AIx@75); reflection coefficient; fasting blood glucose; fasting lipid profile; blood pressure and body composition. We found no improvements in PWV (P = 0·690) and AIx@75 (P = 0·083) in both diet groups, but there was a decrease in the reflection coefficient in the LGL group (P = 0·003) compared with baseline. The LGL diet group showed reductions in body weight (Δ –4·9 kg; P = 0·001), BMI (Δ –1·6 kg/m2; P = 0·001), waist circumference (Δ –3·1 cm; P = 0·001), body fat (Δ –1·8 %; P = 0·034), as well as TAG (Δ –14·7 mg/dl; P = 0·016) and VLDL (Δ –2·8 mg/dl; P = 0·020). The HGL diet group showed a reduction in total cholesterol (Δ –14·6 mg/dl; P = 0·001), LDL (Δ –9·3 mg/dl; P = 0·029) but a reduction in HDL (Δ –3·7 mg/dl; P = 0·002). In conclusion, a 45-day intervention with low-energy HGL or LGL diets in adults with excess weight was not effective to improve arterial stiffness. However, the LGL diet intervention was associated with a reduction of reflection coefficient and improvements in body composition, TAG and VLDL levels.
Design and analysis of active transtibial prosthesis function using 7-link inverse dynamic model of gait
Authors: Barooji Hossein Rostami , Ohadi Abdolreza , Towhidkhah Farzad 
Published: April 2023

AbstractIn today’s world, in order to increase the movement abilities of amputees, different types of passive prostheses are used according to the level of the person’s disability. Although these types of prostheses increase a person’s mobility; however, they still have a limited ability to help the amputee walk normally on uneven terrain, as there is no net stimulus input power for the target joint. These limitations have led to the growth of the use of active prostheses in recent years, which has led to a variety of prosthetic designs. The purpose of this research is, first of all, to provide a suitable design and control of active transtibial prosthesis close to the performance of lost limb of a healthy person, and second and more importantly, to develop a 7-link inverse dynamic model of human gait and use it to analyze of an amputee gait with the designed prosthesis. Winter’s reference data are used in the entire process of design and simulation of prosthesis performance. Also, it is assumed that the amputation occurred in only one leg of the person. Based on the obtained results, when an amputee with 57 kg weight and 1.55 cm height wears an active prosthesis designed with 0.5 kg extra weight, the amount of metabolic cost of amputee in the swing phase increases by about 20%. By using this obtained model, it will be possible to optimize different prosthesis designs for people with different weight and height conditions.
Intra- and interspeaker repetitiveness in Chengdu Mandarin locative variation
Authors: Li Aini , Tamminga Meredith , Hu Hai 
Published: April 2023

AbstractIn producing linguistic variation, language users display a tendency to reuse the same variant. This paper compares the empirical properties of different types of repetitiveness in a single case study: locative variation in Chengdu Mandarin. Using conversational data from sociolinguistic interviews, we ask whether within-speaker repetitiveness (persistence) and cross-speaker repetitiveness (convergence) behave similarly with respect to (1) their sensitivity to the linguistic similarity of the prime and target, and (2) their tendency to decline with greater temporal distance between the prime and target. Our results suggest that intraspeaker persistence and interspeaker convergence behave similarly in both respects. We therefore propose that repetitiveness has a common underlying mechanism within and across speakers and encourage future work aimed at testing this hypothesis across other variables and varieties.
Aggregate health shock and retirement decision
Authors: Jung SeEun , Suh Hyunduk 
Published: April 2023

AbstractThe retirement of old workers increased during the COVID-19 pandemic, and health concerns are considered to be a critical factor. To understand the effect of pure health concerns during the pandemic, we analyze the impact of the aggregate health shock on retirement decisions using a life cycle model. The aggregate health shock changes the economy from the normal state to the pandemic state, where the probability of adverse idiosyncratic health shock increases, especially if agents are working. Simulation results suggest that the shock accelerates the retirement of agents aged over 60. The increase in retirement is significant even though the shock is expected to be temporary. Also, the effect hinges on the assumption that working poses a greater risk of receiving a negative health shock than retiring. Even accounting for the large income and wealth changes that US households experienced in 2020, a counterfactual experiment suggests that the aggregate health shock plays a prominent role in increasing retirement.
The elastic origins of tail asymmetry
Authors: Nakano Satoshi , Nishimura Kazuhiko 
Published: April 2023

AbstractBased on a multisector general equilibrium framework, we show that the sectoral elasticity of substitution plays the key role in the evolution of asymmetric tails of macroeconomic fluctuations and the establishment of robustness against productivity shocks. A non-unitary elasticity of substitution renders a nonlinear Domar aggregation, where normal sectoral productivity shocks translate into non-normal aggregated shocks with variable expected output growth. We empirically estimate 100 sectoral elasticities of substitution, using the time-series linked input-output tables for Japan and find that the production economy is elastic overall, relative to a Cobb-Douglas economy with unitary elasticity. In addition to the previous assessment of an inelastic production economy for the USA, the contrasting tail asymmetry of the distribution of aggregated shocks between the USA and Japan is explained. Moreover, the robustness of an economy is assessed by expected output growth, the level of which is led by the sectoral elasticities of substitution under zero-mean productivity shocks.
Mimetic Mechanicity: TheIron Foundryand Vernacular Internationalism in the 1930s
Authors: MASTERS GILES 
Published: April 2023

AbstractIn the 1930s, theIron Foundry, a short orchestral piece by the Soviet composer Aleksandr Mosolov, became hugely popular with audiences across Europe, North America, and beyond. Reassembling the fragmented archives of its performance and reception histories, this article sets out to follow the work on the circuitous routes that ensued. Addressing issues including programmaticism, the reception of Soviet music, and the history of comedy, I show how Mosolov's composition became a lightning rod for larger debates about concert music's relationships with modernity, politics, and mass entertainment. The case of theIron Foundry, I suggest, illustrates how the pleasures of machine aesthetics – and, more specifically, a stylized idiom of mechanized gesture distinctive to the period – became widely assimilated into what we might call the vernacular internationalism of the interwar middle classes.
Observations of Elves and Radio Wave Perturbations by Intense Lightning
Authors: Tomicic Maja , Chanrion Olivier , Farges Thomas , Mlynarczyk Janusz , Kolmašová Ivana , Soula Serge , Lapierre Jeff , Köhn Christoph , Neubert Torsten 
Published: April 2023

AbstractElectromagnetic pulses (EMPs) and quasi‐static electric fields (QE) from powerful lightning heat and ionize the lower ionosphere. The EMP disturbance may appear as an elve at ∼80–95 km altitude, and the QE field as a halo or a sprite at ∼60–80 km altitude. Both are thought to perturb crossing radio signals because of changes to the electrical conductivity of the regions. Here we present an analysis of 63 elves and corresponding radio signal perturbations from an almost stationary thunderstorm system that allows us to untangle some of the dependencies of perturbations on the lightning characteristics. The amplitude perturbations of a VLF‐transmitter signal are characterized as either long‐recovery, early events (LOREs) or as early events. We find that LOREs are related to lightning with high peak currents and bright elves, and that their sign (amplitude increase or decrease) depends on the relative locations of the transmitter, disturbance and receiver. Based on a subset of strokes, lightning with elves has on average ∼3 times the impulse charge‐moment‐change and power in broadband as lightning of similar peak currents without elves. The early events occur without observed elves, sprites or halos. They recover in ∼10–100 s and are observed for both polarities of cloud‐to‐ground lightning and for intracloud flashes. It is proposed that these observations may relate to regions of reduced conductivity caused by an electron attachment/detachment process at lower heights, or by electron enhancements associated with TLEs that are too dim to be detected by the camera.
Biogeochemical and Physical Assessment of CMIP5 and CMIP6 Ocean Components for the Southwest Pacific Ocean
Authors: Rickard Graham J. , Behrens Erik , Chiswell Stephen , Law Cliff S. , Pinkerton Matt H. 
Published: April 2023

AbstractThe biogeochemical (BGC) and physical capabilities of 16 CMIP5 and 16 CMIP6 Earth System models are examined in relation to present day (1976–2005) observational data sets for a region of the southwest Pacific Ocean (SWPAC). A relative ranking scheme enables identification of a “best” model ensemble over SWPAC, with the CMIP6 models having generally better physical representations compared to the CMIP5 set, but the BGC improvements less marked. For the period 2081–2100 using RCP8.5 and SSP585 for CMIP5 and CMIP6, respectively, we find significant surface temperature increases and mixed layer depth reductions compared to present day over SWPAC, and reductions in the macronutrients but increases in surface iron. Surface chlorophyll and zooplankton and integrated primary production are all found to decrease by end of century over SWPAC except for the southernmost waters. Sea surface salinity significantly freshens in Subantarctic Water, whereas the Tasman Sea is becoming saltier. Using our “best” ensemble, depth‐integrated area averaged chlorophyll and zooplankton are found to decrease by 11% and 16%, respectively, compared to present day over SWPAC, emphasizing that these surface decreases are manifest at all depths in the model.