bluuebunny/crossref_metadata_2025_split huggingface dataset:
Geolocation Patterns, Wi-Fi Connectivity Rates, and Psychiatric Symptoms Among Urban Homeless Youth: Mixed Methods Study Using Self-report and Smartphone Data
Authors: Ilyas Yousaf , Hassanbeigi Daryani Shahrzad , Kiriella Dona , Pachwicewicz Paul , Boley Randy A , Reyes Karen M , Smith Dale L , Zalta Alyson K , Schueller Stephen M , Karnik Niranjan S , Stiles-Shields Colleen 
Published: March 2023

Background
Despite significant research done on youth experiencing homelessness, few studies have examined movement patterns and digital habits in this population. Examining these digital behaviors may provide useful data to design new digital health intervention models for youth experiencing homelessness. Specifically, passive data collection (data collected without extra steps for a user) may provide insights into lived experience and user needs without putting an additional burden on youth experiencing homelessness to inform digital health intervention design.

Objective
The objective of this study was to explore patterns of mobile phone Wi-Fi usage and GPS location movement among youth experiencing homelessness. Additionally, we further examined the relationship between usage and location as correlated with depression and posttraumatic stress disorder (PTSD) symptoms.

Methods
A total of 35 adolescent and young adult participants were recruited from the general community of youth experiencing homelessness for a mobile intervention study that included installing a sensor data acquisition app (Purple Robot) for up to 6 months. Of these participants, 19 had sufficient passive data to conduct analyses. At baseline, participants completed self-reported measures for depression (Patient Health Questionnaire-9 [PHQ-9]) and PTSD (PTSD Checklist for DSM-5 [PCL-5]). Behavioral features were developed and extracted from phone location and usage data.

Results
Almost all participants (18/19, 95%) used private networks for most of their noncellular connectivity. Greater Wi-Fi usage was associated with a higher PCL-5 score (P=.006). Greater location entropy, representing the amount of variability in time spent across identified clusters, was also associated with higher severity in both PCL-5 (P=.007) and PHQ-9 (P=.045) scores.

Conclusions
Location and Wi-Fi usage both demonstrated associations with PTSD symptoms, while only location was associated with depression symptom severity. While further research needs to be conducted to establish the consistency of these findings, they suggest that the digital patterns of youth experiencing homelessness offer insights that could be used to tailor digital interventions.
Identifying and Addressing Barriers and Facilitators for the Implementation of Internet of Things in Distributed Care: Protocol for a Case Study (Preprint)
Authors: Palm Klas , Kronlid Carl , Brantnell Anders , Elf Marie , Borg Johan 
Published: March 2023

BACKGROUND

The internet of things (IoT) is recognized as a valuable approach to supporting health care to achieve quality and person-centered care. This study aims to identify the facilitators and barriers associated with implementing IoT solutions in health care within a Scandinavian context. It addresses the pressing need to adapt health care systems to the demographic changes occurring in Scandinavia. The vision of “Vision eHealth 2025,” a long-term strategic direction for digitalization in Sweden, serves as the background for this project. The implementation of IoT solutions is a crucial aspect of achieving the vision’s goal of making Sweden a global leader in using digitalization and eHealth opportunities by 2025. IoT is recognized as a valuable approach to supporting health care to achieve quality and person-centered care. Previous research has shown that there is a gap in our understanding of social and organizational challenges related to IoT and that the implementation and introduction of new technology in health care is often problematic.

OBJECTIVE

In this study, we will identify facilitating and hindering factors for the implementation of IoT solutions in social and health care.

METHODS

We will use an explorative design with a case study approach. The data collection will comprise questionnaires and qualitative interviews. Also, a literature review will be conducted at the start of the project. Thus, quantitative and qualitative data will be collected concurrently and integrated into a convergent mixed methods approach.

RESULTS

As of June 2023, data for the review and 22 interviews with the stakeholders have been performed. The co-design with stakeholders will be performed in the fall of 2023.

CONCLUSIONS

This study represents a unique and innovative opportunity to gain new knowledge relevant and useful for future implementation of new technology at health care organizations so they can continue to offer high-quality, person-centered care. The outcomes of this research will contribute to a better understanding of the conditions necessary to implement and fully use the potential of IoT solutions. By developing cocreated implementation strategies, the study seeks to bridge the gap between theory and practice. Ultimately, this project aims to facilitate the adoption of IoT solutions in health care for promoting improved patient care and using technology to meet the evolving needs of health care.

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/44562
Biotic interactions among temperate rainforest trees are non-additive and environmentally dependent
Authors: Lai Hao Ran , Bellingham Peter , McCarthy James , Richardson Sarah , Wiser Susan , Stouffer Daniel 
Published: March 2023

1. Species performance in the realised niche is jointly shaped by both abiotic and biotic processes. Moreover, interactions between and within abiotic and biotic processes generate non-additivities, resulting in density dependence that varies in strength or even direction across environments. If ignored, these non-additivities can lead to inaccurate predictions of species responses to changes in environment and community composition.
2. There are increasing empirical efforts to test the constancy of pairwise biotic interactions along environmental and compositional gradients, but rarely along both. We address this gap using nationwide forest inventory data that span broad ambient temperature and moisture gradients throughout New Zealand.
3. We analysed tree diameter growth of six focal tree species as a function of neighbour densities and climate, while accounting for potential abiotic and biotic non-additivities arising from neighbour × climate and neighbour × neighbour statistical interactions, respectively. We kept the large number of parameters manageable using Bayesian shrinkage priors and interpretable using average predictive comparisons.
4. We found that the most complex model—featuring biotic interactions that changed with climate and higher-order interactions with intermediary species—had the highest predictive accuracy of tree diameter growth. Compared to climate, biotic interactions typically had stronger effects on tree diameter growth, especially when they were subjected to non-additivities from local climate and the density of a third species. Most non-additivities tended to weakly exacerbate pairwise competition, whereas the few strong non-additivities tended to alleviate pairwise competition or even produce pairwise facilitation.
5. Synthesis: Our study highlights the importance of the interplay between abiotic and biotic processes when predicting how biotic interactions may structure communities under global change. When quantifying the relative importance of biotic and abiotic processes on species performance, we show that the conclusion varies depending on whether we are looking at direct or indirect effects. With accumulating evidence of non-additive biotic interactions, the next crucial step is to uncover their underlying mechanisms.
DETERMINATION OF ALLANTOIN LEVELS AS A RESULT OF OPTIMIZATION OF IONIC LIQUID-ULTRASOUND ASSISTED EXTRACTION OF COMFREY LEAVES BY TLC-DENSITOMETRY
Authors: Purnomo Andika , Mun'im Abdul , Hayun Hayun 
Published: March 2023

Allantoin is a compound contained in comfrey leaves. This research aims to obtain optimal condition parameters of ionic liquid-ultrasound-assisted extraction (IL-UAE) comfrey leaves to attract allantoin compounds. Comfrey leaves are extracted with eight ionic liquids by ultrasound-assisted extraction (UAE) and screened for allantoin levels. The best ionic liquid from the screening results is optimized response surface methodology (RSM) with Box-Behnken design with three factors and three levels to determine the optimum extraction conditions for allantoin levels. Determination of levels is carried out with TLC densitometry. The results of the IL screening obtained [HMIM]Cl as the best IL in the evaluation of optimization of extraction parameters. The results of optimization of extraction condition parameters [HMIM]Cl obtained the highest allantoin levels on the sixth run of 306.396 μg / g of powder at the ratio of solvents to powders of 10 mL / g, concentrations [HMIM] Cl 1 mol / L and extraction time of 30 minutes.
PENJADWALAN PROYEK PERUMAHAN X BINTARO DENGAN METODE LINE OF BALANCE YANG DISEMPURNAKAN
Authors: Timothy Andreas , Gondokusumo Onnyxiforus 
Published: March 2023

In a project with repetitive activities, traditional scheduling methods like barchart are considered less effective to be used. So it would be better if using a special scheduling method . The commonly used method is line of balance and flowline. In its application, the two methods have several obstacles, both from a technical and visual perspective. Technically, the line of balance method will arrange workers with shifted time that is not effective. Visually, the flowline method cannot directly inform the duration of a project. This research will be using line of balance scheduling method and an enchanced line of balance scheduling method, which is improved both from a technical and visual perspective. Technically, the preparation is done using 3 steps; (1) Line of Balance (LOB) formulation, (2) interruption calculation, and (3) First-Come First Serve (FCFS. While visually, duration-distance chart (DD-Chart) is used to combine the advantages of the two existing methods, which is line of balance and flowline. This study uses housing project X in Bintaro to be the object of research with a total of 6 housing units. Based on the result of the research, the duration of the project with line of balance method is 353 days, and 336 days with enhanced repetitive scheduling method. The reduction of the project duration keeps using the same amount of man-days.
Keywords: LOB; scheduling; FCFS; DD-Chart; repetitive scheduling
Abstrak
Pada suatu proyek dengan pekerjaan berulang (repetitive), penjadwalan dengan metode biasa seperti barchart tidak efektif untuk digunakan. Sehingga lebih baik digunakan suatu metode penjadwalan yang khusus. Metode yang digunakan biasanya adalah metode line of balance dan flowline. Pada penerapannya, kedua metode tersebut terdapat beberapa kendala baik dari segi teknis maupun visual. Dari segi teknis, metode line of balance akan menyusun pekerja dengan adanya waktu geser yang tidak efektif. Sedangkan dari segi visual, metode flowline tidak dapat secara langsung menginformasikan durasi dari suatu proyek. Pada penelitian ini, akan dikaji suatu metode penjadwalan dengan metode line of balance dan metode line of balance yang disempurnakan baik dari segi teknis dan visual. Secara teknis, penyusunan dilakukan dengan menggunakan 3 langkah; (1) Formulasi Line of Balance (LOB), (2) Perhitungan interupsi, dan (3) First-Come First-Serve (FCFS). Sedangkan secara visual, digunakan grafik duration-distance chart (DD-Chart) untuk mengkombinasikan keunggulan dari dua metode yang sudah ada, yaitu line of balance dan flowline. Penelitian ini menggunakan proyek perumahan X di Bintaro untuk dijadikan obyek penelitian dengan jumlah unit sebanyak 6 unit rumah. Berdasarkan hasil penelitian, diperoleh durasi penjadwalan sebesar 353 hari dengan metode line of balance, serta 336 hari dengan metode line of balance yang disempurnakan. Pengurangan durasi tersebut tetap menggunakan jumlah orang-hari yang sama.
Tools for Stone Raw Material Treatment in the Initial and Early Upper Palaeolithic Industries of the Ust-Karakol-1 Site (Excavation Area, 1986)
Authors: Belousova N. E. , Seletskiy M. V. , Fedorchenko A. Yu. 
Published: March 2023

Purpose. This article studies tools for stone raw material treatment found in the Ust-Karakol-1 site collection in Altai (excavation area, 1986).Results. We have established that the latest industry of this site, tentatively correlated with the Middle stage of the Upper Palaeolithic, includes one hammer made of the endcore of fine-grained sedimentary rock. We have identified a pebble hammer flake and retouchers made of coarse-grained sedimentary rocks in the Ust-Karakolian horizon of the Early Upper Palaeolithic. The site inhabitants used flattened and end natural surfaces of pebbles’ fragments for retouching, in some cases the base was additionally modified by flakes. We only recorded tools for pecking on the horizons of the Early Upper Palaeolithic Kara-Bomian tradition. These tools are distinguished by the secondary use of cores and technical flakes as bases, the choice of workpieces from homogeneous fine-grained volcanic and sedimentary rocks, and the use of subrectangular sections of the flaked surface with pronounced edges. These tools are characterized by several working zones and intensive modification of the original relief as a result of utilization.Conclusion. We consider the noted features of percussive-abrasive tools at different stages of site settlement are conditioned by technological and raw material strategies of the bearers of the Early and Initial Upper Palaeolithic traditions, their economic and cultural stereotypes.
Projet « Lü_Move & Learn »
Authors: Bovas Magali , Chabloz Etienne , Lentillon-Kaestner Vanessa 
Published: March 2023

Le projet d’innovation « Lü_Move & Learn » vise à évaluer un nouvel outil d’enseignement en éducation physique, le dispositif interactif Lü, qui s’appuie sur le principe des jeux vidéo actifs. Dans le cadre de ce projet, nous avons conçu une séquence interdisciplinaire en mathématiques et en éducation physique pour des élèves de 7-8P qui permet de répondre aux objectifs du Plan d’Etudes Romand (PER) et qui utilise le dispositif interactif Lü. Ce dispositif est censé favoriser l’engagement des élèves, via les animations qu’il propose, en combinant le plus souvent des temps de réflexion (par exemple faire un calcul mental, épeler un mot, etc.) et d’action (par exemple lancer un ballon sur une réponse possible).
La course en peloton
Authors: Poussin Bernard 
Published: March 2023

Dans le cadre du projet de recherche PEREPS, des formateurs/chercheurs ont construit des formes de pratique scolaire (FPS) en demi-fond qui ont été expérimentées dans les classes des cantons romands. Cet article présente la FPS du cycle 3 : la course en peloton. Cette dernière s’appuie sur les injonctions du PER qui concernent les capacités transversales mais nous avons également tenu à conserver les aspects culturels propres à la pratique du demi-fond. En effet, la course en peloton ainsi que la construction d’un projet de course performant contraint les élèves à mobiliser des techniques culturellement signifiantes et les obligent également à collaborer, à prendre en compte le potentiel physique de chaque membre du groupe pour définir des décisions cohérentes et réussir à les mettre en œuvre lors de l’épreuve.
Directions of the territory’s investment security mechanisms improvement in the context of digital transformation: Krasnodar Krai case study
Authors: Ternavshchenko K. O. , Aseeva V. V. 
Published: March 2023

The purpose of the study is to develop measures to improve the mechanisms for ensuring investment security of the Krasnodar Krai in the context of digital transformation. The subject of the study is the investment and innovation potential in the economic security system of the Krasnodar Krai. The article discusses the features of the formation of investment security of the territory in the conditions of digital transformation. The key stages of this process are presented. The analysis of innovative activity of the territory indicators formation is carried out, and the E-Government Development Index by country in 2020 is estimated. Such threats to the formation of investment security in the Krasnodar Krai as low innovative activity, fragile relationship between science and production, poor commercialization of investments; insufficient popularization of receiving state and municipal services in electronic form; unsatisfactory volume of introduction of modern end-to-end digital technologies in the field of regional management; underdevelopment of digitalisation; as well as geopolitical risks have been identified. The economic justification of the proposed measures implementation in relation to the state program “Development of the industry of the Krasnodar Territory and increasing its competitiveness”, the Strategy of digital transformation of the Krasnodar Krai, as well as the state program “Digital Economy of the Russian Federation” has been carried out. The practical implementation of the proposed measures will improve the formation of investment security of the Krasnodar Krai in the context of digital transformation.
Impression Management during the Covid-19 Pandemic: A Comparative Analysis of the Chairperson’s Statement by JSE-Listed Profitable and Least Profitable Companies
Authors: Dhludhlu Nokuthula , Phesa Masibulele , Sibanda Mabutho 
Published: March 2023

Purpose: The study examined whether profitable and least-profitable Top 100 Johannesburg Stock Exchange (JSE) listed companies used impression management in the chairperson’s statement during the Covid-19 pandemic. The chairperson’s statement is one of the most frequently read and highly rated narrative disclosure statements in the integrated report.
Design: Quantitative content analysis was used. The profitable and least-profitable companies were evaluated using six textual characteristics, namely the length of the chairperson's statement, the use of passive voice, the use of personal references, the use of quantitative references, the use of future references, and the readability score.
Findings: The study found that profitable and least-profitable top 100 JSE-listed companies used impression management during the pandemic. Moreover, both groups used the passive voice as well as future, personal, and quantitative references in the chairperson's statement, even during the Covid-19 pandemic. There was no significant difference in readability, quantitative references, passive voice, personal references, length, and future references. The results are contrary to previous research that indicates that impression management is used less during a crisis.
Implications: The study adds to the debate on the use of impression management in corporate reporting during the crisis and adds to the debate on attribution theory.
Authors: Nurlaili Fitri , Mulyati Budi , Saragih Fetty Elisa 
Published: March 2023

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Identification of Knowledge Management Barriers in Scientific R&D Projects in Czech Academic Environment
Authors: Lajčin Daniel , Guzoňová Viera 
Published: March 2023

The primary aim of the presented paper is the identification of barriers to knowledge sharing by scientific R&D project team members in a Czech academic environment. In order to fulfill this aim, secondary analysis was used to process the literature search in the context of the problem being solved, and qualitative and quantitative research in the form of a structured interview and a questionnaire survey were used to identify the barriers to knowledge sharing by scientific R&D project team members. The essential output of the presented paper is the identification of barriers to knowledge sharing by members of the scientific R&D project team in Czech public and private universities and the discussion of their causes and impacts in scientific R&D projects. With regard to the aim of the presented paper and the formulated research questions, our effort is that the presented discussion outputs are not only academic considerations but scientific analyses and outputs capable of concrete life. Above all, we propose an innovation of Riege's model of barriers to knowledge sharing, as it was chosen as a comparative basis for our research; however, it was found that it is not applicable in the current conditions of scientific R&D project management in the Czech academic environment. Doi: 10.28991/HIJ-2023-04-01-02 Full Text: PDF