bluuebunny/crossref_metadata_2025_split huggingface dataset:
Memory out of context: Spacing effects and decontextualization in a computational model of the medial temporal lobe
Authors: Antony James , Liu Xiaonan L. , Zheng Yicong , Ranganath Charan , O’Reilly Randall C. 
Published: December 2022

AbstractSome neural representations change across multiple timescales. Here we argue that modeling this “drift” could help explain the spacing effect (the long-term benefit of distributed learning), whereby differences between stored and current temporal context activity patterns produce greater error-driven learning. We trained a neurobiologically realistic model of the entorhinal cortex and hippocampus to learn paired associates alongside temporal context vectors that drifted between learning episodes and/or before final retention intervals. In line with spacing effects, greater drift led to better model recall after longer retention intervals. Dissecting model mechanisms revealed that greater drift increased error-driven learning, strengthened weights in slower-drifting temporal context neurons (temporal abstraction), and improved direct cue-target associations (decontextualization). Intriguingly, these results suggest that decontextualization — generally ascribed only to the neocortex — can occur within the hippocampus itself. Altogether, our findings provide a mechanistic formalization for established learning concepts such as spacing effects and errors during learning.
Visiomode: an open-source platform for building rodent touchscreen-based behavioral assays
Authors: Eleftheriou Constantinos , Clarke Thomas , Poon Victoriana , Zechner Marie , Duguid Ian 
Published: December 2022

AbstractBackgroundTouchscreen-based behavioral assays provide a robust method for assessing cognitive behavior in rodents, offering great flexibility and translational potential. The development of touchscreen assays presents a significant programming and mechanical engineering challenge, where commercial solutions can be prohibitively expensive and open-source solutions are underdeveloped, with limited adaptability.New methodHere, we present Visiomode (www.visiomode.org), an open-source platform for building rodent touchscreen-based behavioral tasks. Visiomode leverages the inherent flexibility of touchscreens to offer a simple yet adaptable software and hardware platform. The platform is built on the Raspberry Pi computer combining a web-based interface and powerful plug-in system with an operant chamber that can be adapted to generate a wide range of behavioral tasks.ResultsAs a proof of concept, we use Visiomode to build both simple stimulus-response and more complex visual discrimination tasks, showing that mice display rapid sensorimotor learning including switching between different motor responses (i.e., nose poke versus reaching).Comparison with existing methodsCommercial solutions are the ‘go to’ for rodent touchscreen behaviors, but the associated costs can be prohibitive, limiting their uptake by the wider neuroscience community. While several open-source solutions have been developed, efforts so far have focused on reducing the cost, rather than promoting ease of use and adaptability. Visiomode addresses these unmet needs providing a low-cost, extensible platform for creating touchscreen tasks.ConclusionsDeveloping an open-source, rapidly scalable and low-cost platform for building touchscreen-based behavioral assays should increase uptake across the science community and accelerate the investigation of cognition, decision-making and sensorimotor behaviors both in health and disease.
Hormonal gatekeeping via the blood brain barrier governs behavior
Authors: Ju Linyang , Glastad Karl M. , Sheng Lihong , Gospocic Janko , Kingwell Callum J. , Davidson Shawn M. , Kocher Sarah D. , Bonasio Roberto , Berger Shelley L. 
Published: December 2022

AbstractHere we reveal an unanticipated role of the blood-brain-barrier (BBB) in regulating complex social behavior in ants. Using scRNA-seq we find localization in the BBB of a key hormone-degrading enzyme called Juvenile hormone esterase (Jhe), and we show that this localization governs the level of Juvenile Hormone (JH3) entering the brain. Manipulation of the Jhe level reprograms the brain transcriptome between ant castes. While ant Jhe is retained and functions intracellularly within the BBB, we show thatDrosophilaJhe is naturally extracellular. Heterologous expression of ant Jhe into theDrosophilaBBB alters behavior in fly to mimic what is seen in ant. Most strikingly, manipulation of Jhe levels in ant reprograms complex behavior between worker castes. Our study thus uncovers a novel, potentially conserved role of the BBB serving as a molecular gatekeeper for a neurohormonal pathway that regulates social behavior.
FluorescenceIn SituHybridization Provides Evidence for the Presence of the Endosymbiotic Bacterial GenusRickettsiain Tardigrades
Authors: Tibbs-Cortes Bienvenido W. , Schultz Dylan L. , Tibbs-Cortes Laura E. , Schmitz-Esser Stephan 
Published: December 2022

AbstractMany ecdysozoans harbor endosymbiotic bacteria within their microbiota, and these endosymbionts can have a range of positive and negative effects on their hosts. Recent 16S rRNA gene amplicon sequencing studies have provided evidence for endosymbionts within the tardigrade microbiota. In a previous study amplicon study, we determined that sequences corresponding to the endosymbiotic genusRickettsiawere significantly more associated with tardigrades than with the substrate from which they were isolated. Here, we performed fluorescencein situhybridization (FISH) using aRickettsia-specific probe, RickB1, to determine ifRickettsiacould be found in tardigrades. RickB1 and a probe targeting most bacteria, EUB338, colocalized within the tissues of tardigrades, indicating the presence ofRickettsia. We also performed FISH using RickB1 and a nonsense probe which allowed us to distinguish between false positives and true positives. This method revealed RickB1 signals in tardigrades that were not due to erroneous probe binding, providing further evidence thatRickettsiais present in tardigrades. Future research will be necessary to determine the effects, if any, of this endosymbiont on its tardigrade host.
A lightweight deep learning approach to mouth segmentation in color images
Authors: Chotikkakamthorn Kittisak , Ritthipravat Panrasee , Kusakunniran Worapan , Tuakta Pimchanok , Benjapornlert Paitoon 
Published: December 2022

PurposeMouth segmentation is one of the challenging tasks of development in lip reading applications due to illumination, low chromatic contrast and complex mouth appearance. Recently, deep learning methods effectively solved mouth segmentation problems with state-of-the-art performances. This study presents a modified Mobile DeepLabV3 based technique with a comprehensive evaluation based on mouth datasets.Design/methodology/approachThis paper presents a novel approach to mouth segmentation by Mobile DeepLabV3 technique with integrating decode and auxiliary heads. Extensive data augmentation, online hard example mining (OHEM) and transfer learning have been applied. CelebAMask-HQ and the mouth dataset from 15 healthy subjects in the department of rehabilitation medicine, Ramathibodi hospital, are used in validation for mouth segmentation performance.FindingsExtensive data augmentation, OHEM and transfer learning had been performed in this study. This technique achieved better performance on CelebAMask-HQ than existing segmentation techniques with a mean Jaccard similarity coefficient (JSC), mean classification accuracy and mean Dice similarity coefficient (DSC) of 0.8640, 93.34% and 0.9267, respectively. This technique also achieved better performance on the mouth dataset with a mean JSC, mean classification accuracy and mean DSC of 0.8834, 94.87% and 0.9367, respectively. The proposed technique achieved inference time usage per image of 48.12 ms.Originality/valueThe modified Mobile DeepLabV3 technique was developed with extensive data augmentation, OHEM and transfer learning. This technique gained better mouth segmentation performance than existing techniques. This makes it suitable for implementation in further lip-reading applications.
Sliding mode speed control of permanent magnet synchronous motor based on improved reaching law
Authors: Zou Xinhong , Ding Hongchang , Li Jinhong 
Published: December 2022

Purpose
This paper aims to present a sliding mode control method based on disturbance observer (DO) for improving the reaching law of permanent magnet synchronous motor (PMSM).

Design/methodology/approach
Aiming at the insufficiency of the traditional exponential reaching law used in sliding mode variable structure control, an exponential reaching law related to the speed error is proposed. The improved exponential reaching law can adaptively adjust the size of the constant velocity term in the reaching law according to the size of the speed error, so as to adaptively adjust the speed of the system approaching the sliding mode surface to overcome the control deviation and improve the dynamic and steady state performance. To improve the anti-interference ability of the system, a DO is proposed to observe the external disturbance of the system, and the observed value is used to compensate the system. The stability of the system is analyzed by Lyapunov theorem. The effectiveness of this method is proved by simulation and experiment.

Findings
Simulation and experiment show that the proposed method has the advantages of fast response and strong anti-interference ability.

Research limitations/implications
The proposed method cannot observe the disturbance caused by the change of internal parameters of the system.

Originality/value
A sliding mode control method for PMSM is proposed, which has good control performance. The proposed method can effectively suppress chattering, ensure fast response speed and have strong anti-interference ability. The effectiveness of the algorithm is verified by simulation and experiment.
Hospitality employees’ technology adoption at the workplace: evidence from a meta-analysis
Authors: Guo Qiang , Zhu Dan , Lin Mao-Tang (Brian) , Li Fangxuan (Sam) , Kim Peter B. , Du De , Shu Yan 
Published: December 2022

Purpose
This research aims to use meta-analytical structural equation modeling to look into how hospitality employees use technology at work. It further investigates if the relationship between the constructs of the technology acceptance model (TAM) is moderated by job level (supervisory versus non-supervisory) and different cultures (eastern versus western).

Design/methodology/approach
In total, 140 relationships from 30 empirical studies (N = 6,728) were used in this study’s data analysis in accordance with the preferred reporting items for systematic reviews and meta-analysis.

Findings
The findings demonstrated that perceived usefulness had a greater influence on “user attitudes” and “acceptance intention” than perceived ease of use. This study also identified that the effect sizes of relationships among TAM constructs appeared to be greater for supervisory employees or in eastern cultures than for those in non-supervisory roles or western cultures.

Practical implications
The findings provide valuable information for practitioners to increase the adoption of employee technology. Practitioners need to focus on the identification of hospitality employee attitudes, social norms and perceived ease of use. Moreover, hospitality practitioners should be cautious when promoting the adoption of new technologies to employees, as those at different levels may respond differently.

Originality/value
This is the very first empirical investigation to meta-analyze the predictive power of the TAM in the context of hospitality staff technology adoption at the workplace. The findings also demonstrated differences in the predictive power of TAM constructs according to job level and cultural differences.
The share of FDI in the value added of innovative and other industries in Poland
Authors: Kosztowniak Aneta Maria 
Published: December 2022

PurposeThis study aims to examine the share of foreign direct investment (FDI) in creating the value added (VA) of innovative and other industries in Poland in 2004–2020.Design/methodology/approachIn terms of the empirical analysis of FDI stocks, their locations were divided into innovative and other industries. The differences in the creation of VA are presented by domestic and foreign enterprises. The impact of FDI stocks in individual industries on gross domestic product (GDP) changes was assessed using the vector error correction model (VECM).FindingsFDI from innovative industries generated approx. 7% VA of the Polish economy in the years 2004–2020. In 2009–2018, the share of VA of foreign enterprises in innovative industries in Poland showed a faster growth (by 5 pp) than in other industries. The results of decomposition confirm that the level of explanation of GDP by FDI in innovative industries is higher than in other industries.Research limitations/implicationsChanges in the classification of activities reduce the time series period available.Practical implicationsThis study explains the participation of foreign and domestic enterprises in creating VA. The results are useful to pursuing the national investment policy.Social implicationsThe economic results of domestic and foreign enterprises in the host country affect the economic growth and development and ultimately the socio-economic conditions of life.Originality/valueThis work provides some additional explanations for the inconclusive results of international research into the impact of FDI on GDP or the spillovers effects. Its usefulness concerns the detailed impact of FDI by industrial structures on GDP.
Sustainable food, consensus, and debates: a study on university campuses in Mexico City
Authors: Pasquier Merino Ayari Genevieve 
Published: December 2022

Purpose
This paper aims to analyze the conceptions that underlie the notion of “sustainable food” of different social actors based on a study focused on promoting sustainable food strategies on university campuses.

Design/methodology/approach
The research incorporates the views of various actors linked to a sustainable food project on the campuses of the National Autonomous University of Mexico (Universidad Nacional Autónoma de México), which is one of the most important universities in Latin America. The study includes a literature review on food sustainability strategies on university campuses and implemented sustainable food programmes in 100 universities worldwide. It also incorporates semistructured interviews and discussion groups conducted with consumers of the university community, 60 smallholder farmers and managers of 23 alternative food networks in Mexico City.

Findings
This research evidence the diversity of meanings and perspectives associated with food sustainability and a generalized emphasis on its environmental dimensions, although environmental problems tend to be partially understood. It also highlights the priority students and producers give to the accessibility of healthy foods.

Research limitations/implications
The results of this study revealed important elements, potentially useful for designing sustainable food strategies on the campuses, considering the principles of the rights-based approach to development and social participation.

Originality/value
The research evinces tensions in the definition of food sustainability and its translation into actions from a multistakeholder perspective.
Is voice really persuasive? The influence of modality in virtual assistant interactions and two alternative explanations
Authors: Ischen Carolin , Araujo Theo B. , Voorveld Hilde A.M. , Van Noort Guda , Smit Edith G. 
Published: December 2022

PurposeVirtual assistants are increasingly used for persuasive purposes, employing the different modalities of voice and text (or a combination of the two). In this study, the authors compare the persuasiveness of voice-and text-based virtual assistants. The authors argue for perceived human-likeness and cognitive load as underlying mechanisms that can explain why voice- and text-based assistants differ in their persuasive potential by suppressing the activation of consumers' persuasion knowledge.Design/methodology/approachA pre-registered online-experiment (n = 450) implemented a text-based and two voice-based (with and without interaction history displayed in text) virtual assistants.FindingsFindings show that, contrary to expectations, a text-based assistant is perceived as more human-like compared to a voice-based assistant (regardless of whether the interaction history is displayed), which in turn positively influences brand attitudes and purchase intention. The authors also find that voice as a communication modality can increase persuasion knowledge by being cognitively more demanding in comparison to text.Practical implicationsSimply using voice as a presumably human cue might not suffice to give virtual assistants a human-like appeal. For the development of virtual assistants, it might be beneficial to actively engage consumers to increase awareness of persuasion.Originality/valueThe current study adds to the emergent research stream considering virtual assistants in explicitly exploring modality differences between voice and text (and a combination of the two) and provides insights into the effects of persuasion coming from virtual assistants.
How effective is asynchronous, online training for graduate and undergraduate student instructors?
Authors: Hershock Chad , Melville Michael C. , Stimson Jacqueline , Dwyer Heather 
Published: December 2022

PurposeThe authors developed online learning modules to train graduate and undergraduate student instructors (GUSIs) on grading and delivering feedback in quantitative disciplines. The authors report results from multiple assessments conducted during recent training events at a mid-sized, research-intensive institution and discuss implications for educational development.Design/methodology/approachUsing pre/post-assessments, the author measured participants' learning gains and skill development. In Study 1, the authors measured learning gains for 109 computer science GUSIs randomly assigned to complete the modules or not. Participants who completed the modules performed significantly better on the post-assessment relative to the control group across all seven module learning objectives aligned with GUSI responsibilities. In Study 2, we iterated on both assessments and modules, replicating Study 1 results for GUSIs from other quantitative disciplines. In Study 3, the authors compared learning gains from online modules to in-person training sessions, focusing on the authentic task of providing written feedback on student work.FindingsProficiency improved equally and significantly via both training modalities.Originality/valueAt research-intensive universities, GUSI training can be inconsistent and difficult to scale and rarely assessed via direct measures of outcomes. To the authors’ knowledge, this is the first study to rigorously measure GUSI skill development via authentic assessment tasks such as grading student work and/or providing effective written feedback rather than simply testing knowledge. This study also addresses implications for designing and implementing effective GUSI training at scale.
Can you feel it? The information behaviour of creative DJs
Authors: Munro Keith , Ruthven Ian , Innocenti Perla 
Published: December 2022

PurposeThis paper investigates the information behaviour of creative DJs, a group previously not considered from the perspective of information studies. The practice of DJing is a musically creative process, where a performance can draw on a vast range of music to create a unique listening and dancing experience. The authors study what are the information behaviour processes involved in creative DJing and what roles embodied information play in DJing practice.Design/methodology/approachFrom a set of semi-structured interviews with 12 experienced DJs in Scotland, UK, that were subjected to inductive thematic analysis, the authors present a model of how DJs undergo the process of planning, performing and evaluating a DJ performance.FindingsFrom this study, a model of creative DJs’ information behaviour is presented. This three-stage model describes the information behaviours and critical factors that influence DJs’ planning, decision-making and verification during the pre-performance, performance and post-performance stages, with particular emphasis on DJs’ performances as a rich site of embodied information interactions.Originality/valueThis research provides insight into a new activity in information behaviour, particularly in the use of embodied information, and presents a model for the information behaviour of creative DJs. This opens the way for future studies to consider minorities within the activity, the audience as opposed to the performer, as well as other creative activities where physicality and performance are central.
Nameless strangers, similar others: the affordances of a young people's anonymous online forum for health information practices
Authors: Hirvonen Noora 
Published: December 2022

PurposeThe study examines how the technical features and associated social practices of an anonymous, text-based online forum intended for young people make it a unique platform for acquiring and sharing health information among peers.Design/methodology/approachThe features and content of a young people's section of a popular Finnish discussion forum were examined with a focus on health-related threads. Observational notes and thread content were analysed with a focus on the forum's affordances for health information practices.FindingsThe findings indicate that the forum's affordances including anonymity, persistence, searchability, cohesion and tolerance enabled the pooling of peer experiences, opinions and experience-based advice on health, rather than sharing factual information or embracing reciprocal discussion. As such, instead of competing for a cognitive authority position with medical authorities or offering emotional support like tight online support communities, the anonymous forum served as a platform for young people to gain information on others' experiences and opinions on sensitive, mundane and disnormative health issues and for reflecting their own lived experiences to those of others.Originality/valueThe study is original in its approach to examining the affordances of an online platform for health information practices. It helps in understanding young people's ways of using different resources to meet their diverse health information needs and the value of gaining access to experiential health information.