bluuebunny/crossref_metadata_2025 huggingface dataset:
Geomorphology, Mineralogy, and Chronology of Mare Basalts in the Oceanus Procellarum Region
Authors: Zhang Cheng , Chen Jianping , Pan Yiwen , Wu Shuangshuang , Chen Jian , Hu Xiaoxia , Pang Yue , Liu Xueting , Wang Ke
Published: February 2024

Mare basalts on the lunar surface are tangible expressions of the complex thermal evolution and geological processes that have occurred within the lunar interior. These basaltic manifestations are highly important because they provide invaluable insights into lunar geological evolution. Notably, the Oceanus Procellarum region, which is renowned for its extensive and long-lasting basaltic volcanism, is a premier location to investigate late-stage lunar thermal evolution. The primary aim of this research is to elucidate the geomorphological, compositional, and temporal attributes that define the mare basalts within the Oceanus Procellarum region. To achieve this aim, we comprehensively analyzed the geomorphological features present within the region, leveraging Kaguya/SELENE TC images and digital elevation models. Specifically, these geomorphological features encompass impact craters, wrinkle ridges, sinuous rilles, and volcanic domes. Subsequently, we thoroughly examined the mineralogical attributes of basalts in the Oceanus Procellarum region, leveraging Kaguya/SELENE MI data and compositional map products. To more accurately reflect the actual ages of the mare basalts in the Oceanus Procellarum region, we carefully delineated the geological units within the area and employed the latest crater size-frequency distribution (CSFD) technique to precisely determine their ages. This refined approach allowed for a more comprehensive and accurate understanding of the basaltic rocks in the study area. Overall, our comprehensive study included an in-depth analysis of the volcanic activity and evolution of the Oceanus Procellarum region, along with an examination of the correlation between the mineralogical composition and ages of mare basalts. The findings from this exhaustive investigation reveal a definitive age range for basalt units within the Oceanus Procellarum region from approximately 3.69 Ga to 1.17 Ga. Moreover, the latest mare basalts that formed were pinpointed north of the Aristarchus crater. Significantly, the region has experienced at least five distinct volcanic events, occurring approximately 3.40 Ga, 2.92 Ga, 2.39 Ga, 2.07 Ga, and 1.43 Ga, leading to the formation of multiple basalt units characterized by their unique mineral compositions and elemental abundances. Through the application of remote sensing mineralogical analysis, three primary basalt types were identified: low-titanium, very-low-titanium, and intermediate-titanium basalt. Notably, the younger basalt units exhibit an elevated titanium proportion, indicative of progressive olivine enrichment. Consequently, these younger basalt units exhibit more intricate and complex mineral compositions, offering valuable insights into the dynamic geological processes shaping the lunar surface.
Post-Traumatic Growth, Resilience and Social-Ecological Synergies: Some Reflections from a Study on Conflict-Related Sexual Violence
Authors: Clark Janine Natalya
Published: February 2024

The concept of post-traumatic growth (PTG) continues to generate significant interest, as reflected in the increasing number of studies. This article makes two novel contributions to existing scholarship on PTG. First, it seeks to demonstrate that the common framing of PTG as positive psychological change is too narrow. To do so, it looks to research on resilience and highlights the shift from person-centred understandings of resilience to more relational approaches that situate the concept in the interactions and dynamics between individuals and their social ecologies (environments). The article’s core argument is that there are social-ecological synergies between resilience and PTG, which, in turn, are highly relevant to how we think about and study growth. Second, the article empirically develops this argument by drawing on a larger study involving victims-/survivors of conflict-related sexual violence (CRSV) in Bosnia-Herzegovina, Colombia and Uganda. It is important to note in this regard that there are no major studies of PTG focused on CRSV, just as scholarship on CRSV has given little attention to PTG (or indeed resilience).
The Spatial Role and Influencing Mechanism of the Digital Economy in Empowering High-Quality Economic Development
Authors: Shang Mei , Zhang Shaopeng , Yang Qing
Published: February 2024

Based on the data from 2012 to 2022, this paper comprehensively uses exploratory spatial data analysis, the panel threshold model, and the spatial Durbin model to explore the spatiotemporal evolution characteristics and mechanisms of digital economy and high-quality economic development. The results show that the center of gravity of China’s digital economy development has gradually concentrated in the southeast region, and the level of high-quality economic development has improved rapidly, gradually forming a pattern of radiation driving the development of the central and western regions with the Beijing–Tianjin–Hebei region, the Yangtze River Delta, and the Pearl River Delta. The digital economy can significantly improve the level of high-quality economic development, but this effect has a lag effect, and it can be extended to the fifth stage. There is a single threshold for high-quality economic development of the digital economy, and the two stages of its development can significantly promote the high-quality development of the economy, but the effect of the latter stage is weakened, showing the nonlinear characteristics of first strong and then weak. The digital economy has a notable positive spatial spillover impact, and its development dividend will raise this province’s and its bordering provinces’ levels of high-quality economic development.
An Evaluation of the Luminous Performance of a School Environment Integrating Artificial Lighting and Daylight
Authors: Miranda Débora Thomé , Barreto Douglas , Flores-Colen Inês
Published: February 2024

The energy performance of buildings has been extensively studied at the Federal University of São Carlos, Brazil in order to achieve energy conservation and reduce environmental impacts. Artificial lighting is one of the systems that consume the most electricity in educational buildings; therefore, by adopting measures to improve energy performance, the luminous performance can also be improved. Artificial lighting allows for visual tasks to be accurately and safely carried out by means of lamps of varied temperatures, color rendering index, and luminous performance. Providing adequate lighting in school environments can influence both the health and well-being of school members, contributing positively to productivity. The present study aimed to evaluate the luminous performance of the existing artificial lighting system in a classroom by considering the minimum requirements recommended by the Brazilian standard NBR ISO/CIE 8995-1/2013. Through computer simulations using the DIALux evo program, it was possible to propose actions to improve the existing lighting system in order to offer better visual comfort to users and ensure electricity savings. The artificial lighting system consisted of LED luminaires integrated with daylight and the use of a manual control device, thus generating electricity savings of almost 65% when compared with the existing artificial lighting system in the room.
Advanced Concrete and Construction Materials for Sustainable Structures
Authors: Kioumarsi Mahdi , Plevris Vagelis
Published: February 2024

Innovation in structural engineering has sparked remarkable advancements in the building materials sector and the construction industry in general [...]
Bibliometric Analysis of Urban Coastal Development: Strategies for Climate-Resilient Timber Housing
Authors: García-Ruiz Andrés , Díez-Minguito Manuel , Verichev Konstantin , Carpio Manuel
Published: February 2024

Urban development in coastal areas has become increasingly important due to the climate crisis and its effects on sea level rise and extreme events, which increased the vulnerability of coastal zones. Therefore, it is important to analyze possible sustainable development techniques in urban planning and residential housing construction based on low-carbon footprint materials such as timber. These techniques should be capable of mitigating the effects of flooding and uncontrolled rises in coastal areas, as well as identifying normative and economic differences in their application in the Chilean context. For this purpose, a bibliometric analysis of 3882 articles selected from the Web of Science database between 1987 and 2022 was conducted, allowing us to identify a range of possible solutions to be developed in the study area. This includes evaluating their potential for normative application and a cost analysis of these solutions. In this regard, housing solutions such as amphibious houses and houses on stilts are two types of flood-resistant homes that are gaining popularity worldwide. Following the technical–economic analysis, it was observed that the solution on stilts can be up to 50% more cost-effective to implement in Chile. However, both options offer a promising solution to minimize the risks of coastal flooding and should be taken into account in the urban planning of coastal areas.
Sustainability across the Medical Device Lifecycle: A Scoping Review
Authors: Montesinos Luis , Checa Rifá Pedro , Rifá Fabregat Mireya , Maldonado-Romo Javier , Capacci Stefano , Maccaro Alessia , Piaggio Davide
Published: February 2024

Medical devices are instrumental in servicing the healthcare sector and promoting well-being in modern societies. However, their production and use contribute significantly to greenhouse gas emissions, thus causing indirect harm to global health. With a share of approximately 4.4% of global emissions, the healthcare sector exhales CO2 throughout its value chain; sources of this range from direct electricity consumption and water heating in healthcare facilities to the supply chains delivering healthcare services and products. Within this context, the environmental impact of medical devices is present across their production, distribution, usage, and eventual disposal. Each step in the lifecycle of medical devices consumes energy and natural resources, and the end product, after its often single use, is discarded, generating plastic or electronic waste. This study aims to present the key findings from a scoping review of academic research on the topic, which focuses on reducing the environmental impact of medical devices and equipment. The review, conducted according to the PRISMA checklist for scoping reviews, examined 41 studies and categorised them based on the lifecycle stages of medical devices (design and development, manufacturing, usage, and end of life) and the sustainability aspects (economic, environmental, and social) discussed by the authors. The findings suggest that while efforts have been made to enhance economic and environmental sustainability throughout the design, development, and usage of medical devices, there is still room for improvement in mitigating their ecological impact at the end of their lifecycle and maximising their social impact by design.
Quantifying the Impact and Importance of Natural, Economic, and Mining Activities on Environmental Quality Using the PIE-Engine Cloud Platform: A Case Study of Seven Typical Mining Cities in China
Authors: Zeng Jianwen , Dai Xiaoai , Li Wenyu , Xu Jipeng , Li Weile , Liu Dongsheng
Published: February 2024

The environmental quality of a mining city has a direct impact on regional sustainable development and has become a key indicator for assessing the effectiveness of national environmental policies. However, against the backdrop of accelerated urbanization, increased demand for resource development, and the promotion of the concept of ecological civilization, mining cities are faced with the major challenge of balancing economic development and ecological environmental protection. This study aims to deeply investigate the spatial and temporal variations of environmental quality and its driving mechanisms of mineral resource-based cities. This study utilizes the wide coverage and multitemporal capabilities of MODIS optical and thermal infrared remote sensing data. It innovatively develops the remote sensing ecological index (RSEI) algorithm on the PIE-Engine cloud platform to quickly obtain the RSEI, which reflects the quality of the ecological environment. The spatial and temporal evolution characteristics of the environmental quality in seven typical mining cities in China from 2001 to 2022 were analyzed. Combined with the vector mine surface data, the spatial and temporal variability of the impacts of mining activities on the ecological environment were quantitatively separated and explored. In particular, the characteristics of mining cities were taken into account by creating buffer zones and zoning statistics to analyze the response relationship between RSEI and these factors, including the distance to the mining area and the percentage of the mining area. In addition, the drivers and impacts of RSEI in 2019 were analyzed through Pearson correlation coefficients pixel by pixel with 10 factors, including natural, economic, and mining. Regression modeling of RSEI in 2019 was performed using the random forest (RF) model, and these drivers were ranked in order of importance through random forest factor importance assessment. The results showed that (1) the ecological quality of mining cities changed significantly during the study period, and the negative impacts of mining activities on the ecological environment were significant. (2) The areas with low RSEI values were closely related to the mining areas and cities. (3) The RSEI in the mining areas of mining cities was generally lower than the average level of the cities. The RSEI gradually increased as the distance to the mine site increased. (4) The increase in the size of the mine area initially exacerbates the impact on the ecological environment, but the impact is weakened beyond a certain threshold. (5) The distance to the mining area is the most important factor affecting the quality of the ecological environment, followed by DEM, GDP, and precipitation. This study is of great importance for advancing sustainable development in mining cities and formulating sustainable strategies.
The Release and Migration of Cr in the Soil under Alternating Wet–Dry Conditions
Authors: Chen Zhe , Chen Ying , Liang Jing , Sun Zhiyu , Zhao Haoren , Huang Yi
Published: February 2024

In recent decades, chromium contamination in soil has emerged as a serious environmental issue, demanding an exploration of chromium’s behavioral patterns in different soil conditions. This study aims to simulate the release, migration, and environmental impact of chromium (Cr) in contaminated soils under natural rainfall conditions (wet–dry cycles). Clean soils sourced from Panzhihua were used to cultivate chromium-containing soils. Simulated rainfall, prepared in the laboratory, was applied to the cultivated chromium-containing soils in indoor simulated leaching experiments. The experiments simulated three years of rainfall in Panzhihua. The results indicate that soils with higher initial Cr contents result in higher Cr concentrations in the leachate, but all soils exhibit a low cumulative Cr release. The leachate shows similar patterns in total organic carbon (TOC), pH, electrical conductivity, and Cr content changes. An analysis of the speciation of Cr in the soil after leaching reveals a significant decrease in the exchangeable fraction for each Cr species, while the residual and oxidizable Cr fractions exhibit notable increases. The wet–dry cycle has the following effects on the soil: it induces internal reduction reactions in the soil, leading to the reduction of Cr(VI) to Cr(III); it alters the binding of Cr ions to the soil, affecting the migration of chromium; and it involves microorganisms in chemical processes that consume organic matter in the soil. After three years of rainwater leaching, chromium-containing soils released a relatively low cumulative amount of total chromium, resulting in a reduced potential risk of groundwater system contamination. Most of the chromium in the chromium-containing soil is fixed within the soil, leading to less biotoxicity.
The Reintroduction of Brown Trout (Salmo trutta fario) in the Upper Scheldt River Basin (Flanders, Belgium): Success or Failure?
Authors: Boets Pieter , Dillen Alain , Auwerx Johan , Zoeter Vanpoucke Mechtild , Van Nieuwenhuyze Wim , Poelman Eddy , Goethals Peter
Published: February 2024

In 2017, the reintroduction of juvenile brown trout in the southwestern part of Flanders (the Zwalm River basin) (Belgium) was initiated. Monitoring during the subsequent years indicated that the released juveniles survived and matured, indicating that sufficient food and good habitat conditions were available. Despite recent fulfilment of free fish migration within the Zwalm River basin and several spawning habitats being present, no natural reproduction of brown trout could be observed. To obtain more insight into the reproduction and maturing of brown trout eggs under natural conditions, an in situ experiment was conducted during 3 consecutive years at 10 different sites within the river basin. The results of our research indicated that egg survival was generally low (<5%). The main causes are most likely a heavy sediment load hampering sufficient oxygen and clean water flow through the redds. In this basin, the sediment load originates mainly from agricultural fields during heavy rain events and consequential run-off. Creating grassy and/or woody buffer strips along watercourses, in combination with changes in agricultural practices, is needed to be able to build up a viable and self-sustaining population of brown trout and also, in a larger context, of other rheophilic fish species.
Professorale Karrieremuster Reloaded. Entwicklung einer wissenschaftlichen Methode zur Forschung auf online verfügbaren und verteilten Forschungsdatenbanken der Universitätsgeschichte.
Authors: Wolf Tanja ,   Technische Universität Braunschweig, Schiele Patrick ,   Stiftung LEUCOREA Lutherstadt Wittenberg, Beretta Francesco ,   Laboratoire de recherche historique Rhône-Alpes, CNRS / Université de Lyon, Erlinger Christian ,   Zentral- und Hochschulbibliothek Luzern, Görmar Maximilian ,   Herzog August Bibliothek Wolfenbüttel
Published: February 2024

Mit dem vorliegenden Band zu den Forschungsergebnissen im Projekt Professorale Karrieremuster der Frühen Neuzeit – Entwicklung einer wissenschaftlichen Methode zur Forschung auf online verfügbaren und verteilten Forschungsdatenbanken der Universitätsgeschichte setzt das Institut für Informatik, an der Hochschule für Technik, Wirtschaft und Kultur in Leipzig, die Reihe Publikationen in der Informatik fort. Die in diesem Band adressierten Themen zeigen die Vernetzung der Informatik mit Forschungsfragen in den Geschichtswissenschaften im Forschungsfeld der Digital Humanities auf. Zusätzlich enthält dieser Band verwandte projektübergreifende und vernetzende Arbeiten, welche auf der Abschlusstagung des Forschungsprojektes in Helmstedt am 20. und 21. März 2023 präsentiert wurden. So steht der Beitrag von Tanja Wolf stellvertretend für eine Reihe vergleichbarer Projekte, die besonders von Universitätsarchiven mit Fokus auf die lokale Gelehrtengeschichte durchgeführt werden und eröffnet den Blick auf eine sich zunehmend vernetzende Forschungsrichtung. Der Beitrag von Francesco Beretta zur Interoperabilität historischer Daten im Semantic Web ordnet die Forschungen in den europäischen Kontext und in das Feld semantischer Datenmodellierung ein. Der Band formuliert so Ansprüche an Informationsinfrastrukturen für zukünftige Projekte im Bereich der Geistes- und Sozialwissenschaften. Die im Projekt entstandenen Forschungsdaten und Werkzeuge, u. a. die Forschungsontologie und das generische Werkzeug OntoExplorer, werden über das Ende der Projektlaufzeit hinaus in Form einer Digitalen Werkbank durch die Arbeitsgruppe Open Source Software und Open Data an der HTWK Leipzig zur Verfügung gestellt und weiterentwickelt.
What makes a good general practice consultation? An exploratory pilot study with people from a low socioeconomic background
Authors: MacPherson Naomi , Ta Binh , Ball Lauren , Gunatillaka Nilakshi , Sturgiss Elizabeth Ann
Published: February 2024

Background

While patients from low socioeconomic (SES) backgrounds are at increased risk of developing chronic health conditions, typically managed within general practice, they report fewer positive consultation experiences with GPs than patients from higher SES groups. To our knowledge, existing research does not provide an in-depth understanding of the GP conducts that contribute to positive consultations.

Aim

To identify the factors that patients from low SES backgrounds perceive as essential for creating good consultation experiences.

Design & setting

This exploratory pilot study was performed in GP clinics in Melbourne, Australia.

Method

We used an appreciative inquiry approach, focused on positive consultation experiences, previously shown to be helpful for researching sensitive topics. Nine patients from low SES backgrounds, who reported positive consultation experiences, undertook a semi-structured qualitative interview while watching the video recording of their GP consultation. Four different GPs were captured in the recordings. Inductive thematic coding was performed by two researchers.

Results

The following four categories were developed: 1) the doctor’s demeanour and how the patient was made to feel during the consultation drove their engagement; 2) an established and collaborative therapeutic relationship was of high importance to patients; 3) a doctor’s therapeutic skillset was integral to patient confidence and comfort; and 4) patients appreciated verbal and non-verbal communication techniques. In each interview, the discussion about the video-recorded consultation often triggered reflections about previous consultations with the respective GP.

Conclusion

For patients from low SES groups, positive consultation experiences were underpinned by perceived continuity of care with a specific GP who consistently showed good communication skills and key interpersonal characteristics. This research is a small step towards increasing our understanding of the experience of individuals from low SES backgrounds in primary care and the existing health inequities within this area.
L’insertion des sciences sociales et sciences humaines dans l’enseignement de l’architecture
Authors: Paré Suzanne
Published: February 2024

The teaching of architecture underwent a renovation confirmed by the events of 68. The events followed the sociological movement led by Henri Lefebvre, but the reform initiative was taken by the architect Michel Écochard. This discreet person was appointed by the Ministry of Culture with a mission to teach urban planning at the École des Beaux-Arts, his courses being designed in close interdependence with the human sciences disciplines.
Clinical Adjudication of Hemodialysis Catheter-Related Bloodstream Infections: Findings from the REDUCCTION Trial
Authors: Catiwa Jayson , Gallagher Martin , Talbot Benjamin , Kerr Peter G. , Semple David J. , Roberts Matthew A. , Polkinghorne Kevan R. , Gray Nicholas A. , Talaulikar Girish , Cass Alan , Kotwal Sradha ,   on behalf of the REDUCCTION Investigators
Published: February 2024

Key Points

The inter-rater reliability of reporting hemodialysis catheter-related infectious events between site investigators and trial adjudicators in Australia and New Zealand was substantial.

The high concordance level in reporting catheter infections improves confidence in using site-level bacteremia rates as a clinical metric for quality benchmarking and future pragmatic clinical trials.

A rigorous adjudication protocol may not be needed if clearly defined criteria to ascertain catheter-associated bacteremia are used.

Background

Hemodialysis catheter-related bloodstream infection (HD-CRBSI) are a significant source of morbidity and mortality among dialysis patients, but benchmarking remains difficult because of varying definitions of HD-CRBSI. This study explored the effect of clinical adjudication process on HD-CRBSI reporting.

Methods

The REDUcing the burden of Catheter ComplicaTIOns: a National approach trial implemented an evidence-based intervention bundle using a stepped-wedge design to reduce HD-CRBSI rates in 37 Australian kidney services. Six New Zealand services participated in an observational capacity. Adult patients with a new hemodialysis catheter between December 2016 and March 2020 were included. HD-CRBSI events reported were compared with the adjudicated outcomes using the end point definition and adjudication processes of the REDUcing the burden of Catheter ComplicaTIOns: a National approach trial. The concordance level was estimated using Gwet agreement coefficient (AC1) adjusted for service-level effects and implementation tranches (Australia only), with the primary outcome being the concordance of confirmed HD-CRBSI.

Results

A total of 744 hemodialysis catheter-related infectious events were reported among 7258 patients, 12,630 catheters, and 1.3 million catheter-exposure days. The majority were confirmed HD-CRBSI, with 77.9% agreement and substantial concordance (AC1=0.77; 95% confidence interval [CI], 0.73 to 0.81). Exit site infections have the highest concordance (AC1=0.85; 95% CI, 0.78 to 0.91); the greatest discordance was in events classified as other (AC1=0.33; 95% CI, 0.16 to 0.49). The concordance of all hemodialysis catheter infectious events remained substantial (AC1=0.80; 95% CI, 0.76 to 0.83) even after adjusting for the intervention tranches in Australia and overall service-level clustering.

Conclusions

There was a substantial level of concordance in overall and service-level reporting of confirmed HD-CRBSI. A standardized end point definition of HD-CRBSI resulted in comparable hemodialysis catheter infection rates in Australian and New Zealand kidney services. Consistent end point definition could enable reliable benchmarking outside clinical trials without the need for independent clinical adjudication.
Integrative review on the role of BDNF and cannabidiol in neuroplasticity
Authors: Cochito Rafaela Oliveira , Miracco Antônio Palma , Marques Bruna Zorzo , Da Costa Neto José Luiz , Sakamoto Matheus Shoiti Mizoguchi , Dinatt Roberto Fontanella , Miracco Suelen de Paula Sousa , Gavioli Aline , Ortiz Sandra Regina Mota
Published: February 2024

Neuroplasticity is the process of adaptation of the central nervous system in response to different sensory stimuli. These are functional and structural changes to the Central Nervous System when coming into contact with new experiences. BDNF is a neurotrophic factor that acts as an important regulator of neuronal plasticity, promoting neuronal survival and differentiation. Cannabidiol helps modulate neuroplasticity by acting on BDNF levels. A systematic review is being carried out using these themes to analyze the roles of CBD and BDNF in neuroplasticity.
Production of Polycaprolactone/Hidroxyapatite Scaffold for Application in Tissue Engineering
Authors: Joanne G. A. Mendes  , João Pedro de A. Caribé  , Adillys M. da C. Santos  , Willams T. Barbosa  , Osiane D. V. Barbosa  , Luis Alberto Loureiro dos Santos  , Liciane Sabadin Bertol  , Imarally V. de S.R. Nascimento
Published: February 2024

The study aims to produce fibrous polycaprolactone (PCL) scaffolds with hydroxyapatite (HA) incorporation using the Solution Blown Spinning (SBS) technique for application in tissue engineering. The scaffolds were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), contact angle, and thermogravimetric analysis (TG). The images obtained by SEM showed that the fibers have a diameter on a micrometer scale. FTIR spectra indicated physical and chemical interactions between PCL and HA. TG analysis showed the presence of HA, which provided an anticipation of the PCL degradation temperature. We obtained micrometric fibers of PCL and PCL/HA with different orientations. The technique used is promising for making scaffolds.
Preliminary Assessment of Fuel Spill Effects Utilizing Daphnia similis as a Test Organism
Authors: Adriano Carvalho Simões Guimarães  , Clara Rodrigues Pereira  , Eliete Costa Alves  , Edna dos Santos Almeida  , Lilian Lefol Nani Guarieiro
Published: February 2024

Human interference in the aquatic ecosystem has created an unideal environment fpo-ooor aquatic creatures, emphasizing accident fuel and oil leaks from offshore cargo ships and offshore oil drilling, respectively. In this context, a preliminary study was conducted to analyze further the effects that a fuel spill causes in a water environment. The methodology used the standard method of conducting ecotoxicological essays using Daphnia similis but was adapted for a preliminary context, using fewer resources to obtain a primary analysis. The results indicate that fuel spills are still dangerous to underwater life, even in low concentrations. This study showcases the immediate effects of fuel spills and is still open for further experimentation.
Use of Biomass from Beached Algae of the Genus Caulerpa to Obtain the Alkaloid Caulerpin
Authors: Tiago Tosta Alves Cruz  , Sabrina Teixeira Martinez
Published: February 2024

Caulerpin is an alkaloid with various biological activities, such as antinociceptive, anti-inflammatory, and antitumoral. This natural product is the majority in algae of the genus Caulerpa, which are found fixed to rocks on the seabed and beached to the sands. The objective of the research was to evaluate the possibility of using the biomass of these marginalized algae to obtain the alkaloid. Using ultrasound extraction and analysis by gas chromatography coupled with mass spectrometry, the results showed that it was possible to identify caulerpin in the beached algae. Furthermore, the alkaloid showed good resistance to photodegradation since caulerpin remained practically unchanged after 7 days of exposure to sunlight.
The Role of Social Skills in Work Engagement and Burnout: A Systematic Review
Authors: Fernando Victor Cavalcante  , Michelle de Andrade Souza Diniz Salles  , Camilla de Sousa Pereira-Guizzo  , Thaís Afonso Andrade  , Beatriz Quiroz Villardi
Published: February 2024

This study aims to investigate the role of social skills (SS) in work engagement (WE) and burnout through a Systematic Review (SR). The SR was performed in Scopus and Web of Science databases using the PRISMA-ScR approach. Eighteen research were selected, and the findings show a direct and indirect correlation between SS, positive with WE, and negative with burnout. It is concluded that SS acts as a protective factor for workers' health and, consequently, for better institutional results, and interventions should be implemented with a focus on developing workers' SS to promote engagement and prevent burnout.
Hydrophobic Polymer/Graphene and Derivatives Based Nanocomposites: A Systematic Rieview
Authors: Débora Abrantes Leal  , Rodrigo Denizarte de Oliveira Polkowski  , Pollyana Silva Melo  , Katiellly Vianna Polkowski
Published: February 2024

Graphene presents exceptional properties. When this nanomaterial is present in nanocomposites, even at low concentrations, their properties are drastically changed and can be tuned according to the desired final nanocomposite characteristics. Graphene-based materials, such as graphene oxide (GO) and reduced GO, can be functionalized with different chemical species, enhancing their versatility. Furthermore, these materials can provide hydrophobic properties for nanocomposites, being useful for applications in anticorrosive coatings, membranes, and packaging. This review analyzed different methodologies/functionalizations reported in the literature to obtain graphene-based nanocomposites with hydrophobic properties.
Persistent Homology and Persistent Cohomology: A Review
Authors: Okediji Busayo Adeyege
Published: February 2024

Persistent homology is an important tool in non-linear data reduction. Its sister theory, persistent cohomology, has attracted less attention in the past years eventhough it has many advantages. Several literatures dealing with theory and computations of persistent homology and cohomology were surveyed. Reasons why cohomology has been neglected over time are identified and, few possible solutions to the identified problems are made available. Furthermore, using Ripserer, the computation of persistent homology and cohomology using 2-sphere both manually and computationally are carried out. In both cases, same result was obtained, particularly in the computation of their barcodes which visibly revealed the point where the two coincides. Conclusively, it is observed that persistent cohomology is not only faster in computation than persistent homology, but also uses less memory in a little time.
Investment outlays on nature protection in the context of the share of areas of high environmental value in the regions of Poland
Authors: Kropsz-Wydra Irena , Adamska Hanna , Szuk Tomasz , Minta Stanisław
Published: February 2024

The aim of the study is to determine whether there is a relationship between the value of investments made for nature protection and the area of legally protected areas in Poland. The research problem concerns investment outlays incurred for nature protection in relation to the surface of areas with high natural values in Poland, taking into account the division into voivodeships in the years 2002-2021. In general, the area of legally protected areas in Poland did not show high variability in the analysed period, while the assessment of the relationship between the variables showed differences between voivodships. The results of the statistical analysis showed that there is a positive relationship between investment outlays, and the share of legally protected areas and that the level of investment outlays incurred for nature protection is not proportional to the share of legally protected areas.
MEDICAL AND SOCIAL CHARACTERISTICS OF PATIENTS WITH INFERTILITY AND LONG-COVID-19
Authors: GOLOVCHAK I. S. , BOICHUK O. G.
Published: February 2024

Purpose. To assess the medical and social characteristics of patients with infertility and longCOVID-19. Materials and methods. The main group consisted of 80 women with infertility who showed signs of “long-COVID”, the comparison group - 40 patients without a history of COVID-19. Socioeconomic status and factors of stressogenic load, fear of coronavirus-19 (FCV-19S scale), autonomic dysfunction (O.M. Wayne questionnaire, 1998). were assessed

Results. Women with infertility and “long-COVID-19” are characterized by a relatively low level of socio-economic status: a lower level of income, a smaller share of entrepreneurs and housewives, not comfortable enough living conditions. These patients have a higher level of stressogenic load: comorbidity with chronic somatic pathology (58.8%), conflict situations in the family (31.3%), dissatisfaction with their sexual relationships (58.7%). The level of fear of COVID-19 is also significantly higher (29.73±1.31 points according to the FCV-19S questionnaire). Women with infertility and “long-Covid-19” suffer from various manifestations of autonomic disorders - autonomic dysfunction is diagnosed in 82.5% of patients. Symptoms that are typical for “long-Covid-19” are most often noted: reduced work capacity/fatigue (82.5%), attack-like headaches (72.5%), difficulty breathing (47.5%), sleep disturbances (47 .5 %). Conclusion. Women with infertility and “long-COVID-19” need additional examinations to assess vegetative function and psychological state, correction of detected violations.
Peculiarities of trace elements balance in children and its impact on dental health
Authors: Godovanets O.I. , Kotelban A.V.
Published: February 2024

The article is about the peculiarities of trace elements balance in 6-year-old children living in Bukovina. The following observation groups were selected: Group I – 69 children suffering from caries, and Group II – 26 dentally healthy children. In order to determine stable indicators accumulated over a long period of time, we analyzed children's hair for Fe, Cu, Zn and Mg content by atomic absorption spectrophotometry. The degree of probability of the obtained results was statistically assessed. As a result of our research, in the hair of children with caries, it was found that copper and zinc were probably lower, by 24.93% and 77.93%, respectively, compared to dentally healthy children, which negatively affects the processes of mineralization and contributes to the demineralization of teeth. The level of iron and magnesium was 33.43% and 59.83% higher in children with dental caries. We determined the content of trace elements depending on the intensity of caries damage to the teeth: the highest values of copper, zinc and iron – under the conditions of a low level of caries intensity, the lowest – under the conditions of a very high level. Magnesium concentration increased with an increase in the number of cariously affected teeth. While determining the ratio of essential trace elements in the hair of children with caries and dentally healthy children, an imbalance in their values was determined. Thus, the Zn/Cu ratio in the hair of children with caries was 46 times higher compared to this indicator in dentally healthy children. The remaining indicators indicate that the ratio in children with caries is lower: Cu/Fe – by 34.37%, Zn/Fe – by 6.76 times, Fe/Mg – by 1.65 times, Cu/ Mg – 2.73 times. So, we have established an imbalance in the micronutrient supply system for children with caries, which indicates the need for its correction during the development of therapeutic and preventive measures.

Keywords: caries, magnesium, iron, zinc, copper.
Kajian Struktur Anatomi Beberapa Tanaman Suku Araceae
Authors: Viranda Ega , Anggraini Nike
Published: February 2024

Suku Araceae merupakan kelompok talas-talasan dengan ciri khas struktur daun, bunga, dan batang yang menarik. Penulisan artikel ini bertujuan untuk mengkaji anatomi keseluruhan bagian tanaman suku Araceae mulai dari bagian daun, tangkai daun, batang, akar, serta perbungaannya. Metode yang digunakan yaitu metode kajian literature. Hasil yang diperoleh yaitu anatomi daun dan tangkai daun terdapat tiga jenis epidermis yaitu Straight-sided anticlinal walls, Undulate-anticlinal walls, dan Sinous-antiklinal walls, tipe stomata Amphibrachyparacitic, Parahexacytic, Paracytic, dan Anomositik. Anatomi batang Caladium bicolor menunjukkan susunan jaringan yang terdiri dari jaringan epidermis, korteks, berkas pembuluh. jaringan epidermis. Anatomi akar Caladium bicolor yaitu menunjukkan epidermis, korteks, dan stele, Anatomi akar Spathiphyllum cannifolium terdiri dari xilem dan floem, pembuluh metaxylem, dan empulur. Anatomi bunga Amorphophallus titanium memiliki spatha tersusun atas epidermis ditutupi kutikula dan stomata bertipe paracytic atau anomositik. Berdasarkan kajian literatur dapat disimpulkan bahwa setiap jenis tanaman araceae memiliki anatomi yang berbeda-beda walaupun termasuk kedalam suku yang sama.
Hubungan Antara Asupan Energi dengan Status Gizi Pada Siswa di SMA Negeri 7 Manado
Authors: Limboto Daniel , Punuh Maureen , Malonda Nancy S. H.
Published: February 2024

Asupan energi yang tidak seimbang dapat memengaruhi status gizi. Tujuan riset ini ialah guna menganalisis hubungan antara asupan energi dengan status gizi siswa di SMA Negeri 7 Manado. Metode riset ini adalah observasional analitik melalui pendekatan cross sectional study. Riset inidilaksanakan pada bulan November 2022-Juni 2023 di SMA Negeri 7 Manado. Populasi riset ini ialah pelajar kelas 2 SMA Negeri 7 Manado yang berjumlah 506 siswa dengan jumlah sampel 90 siswa diambil menggunakan metode systematic random sampling. Korelasi antar variabel di uji statistik memakai uji Spearman’s Rank Correlation Coeficient dengan α = 0,05. Hasil riset memaparkan mayoritas responden mempunyai asupan energi defisit berat 87,8% dan status gizi baik 78,9%. Kesimpulan riset ini yakni tidak ada hubungan yang signifikan antara asupan energi dengan status gizi pelajar di SMA Negeri 7 Manado dengan nilai r = 0,179 dan nilai P = 0,091 (P>0,05). Peserta didik diharapkan mengonsumsi beraneka ragam makanan bergizi agar kebutuhan gizi terpenuhi.
DESAIN MEDIA PEMBELAJARAN BIOLOGI MENGGUNAKAN APLIKASI FOCUSKY DI SMA N 1 TARUSAN
Authors: Dwi Alda Restika , Darmawati Gusnita , Antoni Musril Hari , Annas Firdaus
Published: February 2024

Penelitian ini dilatar belakangi dari kenyataan disaat peneliti melakukan observasi dan wawancara di kelas X SMA N 1 Tarusan, peneliti menemukan bahwa pada saat proses pembelajaran guru cenderung menggunakan metode ceramah dan guru masih menggunakan media konvesional berupa papan tulis, modul dan buku cetak. Tujuan dari penelitian ini adalah untuk merancang media pembelajaran biologi menggunakan aplikasi focusky kelas X di SMA N 1 Tarusan yang valid, praktis dan efektif. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian pengembangan Research and Development (R&D) versi 4D yang terdiri dari 4 tahapan yaitu tahapan pendefenisian (define), tahapan perancangan (design), tahapan pengembangan (develop), dan tahapan penyebaran (disseminate). Uji produk yang digunakan pada penelitian terdiri dari uji validitas, uji praktikalitas, dan uji efektivitas. Hasil dari penelitian media pembelajaran biologi menggunakan aplikasi Focusky ini mendapatkan nilai uji validitas dengan nilai rata-rata 0,89 dengan kriteria valid, hasil uji praktikalitas dengan nilai rata-rata 0.89 dinyatakan sangat praktis dan hasil uji efektivitas dengan nilai rata-rata 0,88 yang dinyatakan efektif. Berdasarkan hasil uji produk media pembelajaran biologi menggunakan aplikasi Focusky sebagai media pembelajaran sudah valid, praktis, dan efektif.
ALGORITMA XGBOOST UNTUK KLASIFIKASI KUALITAS AIR MINUM
Authors: Dava Maulana Muhammad , Id Hadiana Asep , Rakhmat Umbara Fajri
Published: February 2024

Air adalah sumber daya alam yang penting bagi keberlangsungan hidup organisme di bumi, termasuk manusia, hewan, dan tumbuhan. Namun, potensi tercemarnya air oleh bakteri dan zat mineral berbahaya mengancam kesehatan manusia. Penyebab utama tercemarnya air meliputi aktivitas manusia yang intens, proses industri kompleks, dan kurangnya kesadaran akan dampak limbah yang dibuang sembarangan ke perairan. Kualitas air bisa diukur dengan berbagai parameter, dan pendekatan machine learning dapat digunakan untuk klasifikasi kualitas air. Salah satu metode yang efektif adalah XGBoost, sebuah varian gradient tree boosting yang mampu meningkatkan akurasi prediksi dengan mengurangi overfitting. Penelitian sebelumnya telah menunjukkan bahwa XGBoost memiliki performa yang baik dalam klasifikasi, bahkan mengungguli beberapa algoritma lain seperti Naïve Bayes dan Random Forest dalam konteks tertentu. Penelitian ini juga bertujuan untuk mengukur akurasi algoritma XGBoost dalam melakukan klasifikasi kualitas air. Hasil percobaan menunjukan dengan dataset sebanyak 2400 dengan pembagian data latih 80% dan data uji 20%, yang terdiri dari 1200 data kelas dapat diminum dan 1200 data kelas tidak dapat diminum. Akurasi yang didapat adalah 82.29%, precision 78.62%, recall 85.90% dan f1-score 82.09%.
PREDIKSI CUSTOMER CHURN PADA PERUSAHAAN TELEKOMUNIKASI MENGGUNAKAN ALGORITMA C4.5 BERBASIS PARTICLE SWARM OPTIMIZATION
Authors: Rizki Kurniawan Moch. , Nurul Sabrina Puspita , Ilyas Ridwan
Published: February 2024

Customer churn didefinisikan sebagai kecenderungan customer berhenti dan berpindah dari satu layanan kepada layanan lain pada periode tertentu, Karena ini merupakan masalah terpenting dalam dunia bisnis khususnya dalam industri telekomunikasi yang sangat mempengaruhi keuntungan perusahaan, dalam mendapatkan pelanggan baru biayanya jauh lebih tinggi dari pada mempertahankan pelanggan yang sudah ada. Memprediksi customer churn dapat membantu sektor CRM (Customer Relationship Management) pada perusahaan menentukan strategi mempertahankan pelanggan yang ada. Penelitian ini membahas mengenai prediksi customer churn menggunakan algoritma c4.5 berbasis particle swarm optimization yang digunakan untuk seleksi atribut dan optimasi pengukuran evaluasi confusion metrics. Skenario pembagian data latih 80% dan data uji 20%. Dari hasil penelitian optimasi particle swarm optimization mampu menyeleksi atribut pada algoritma C4.5, sehingga menghasilkan tingkat akurasi dalam prediksi customer churn yang lebih baik dibanding dengan menggunakan metode individual algoritma C4.5 terjadi peningkatan nilai akurasi sebesar 1.91% dengan nilai akurasi sebesar 91.55%, precision sebesar 85.21%, recall sebesar 85.0% dan f1-score sebesar 85.11%.
PENERAPAN LOGIKA FUZZY METODE TSUKAMOTO UNTUK PREDIKSI JUMLAH MAHASISWA BARU
Authors: Suharyudi Onoaji Ambal , Hartami Santi Indyah , Chulkamdi Mukh Taofik
Published: February 2024

Pendidikan menjadi faktor penting dalam meningkatkan kualitas hidup suantu bangsa, untuk mempromosikan kemajuan pendidikan diperlukan fasilitas penunjang kebutuhan mahasiswa yang berkualitas. Fluktuasi jumlah mahasiswa baru selama 4 tahun terakhir telah menyulitkan analisis dan perencanaan kebijakan oleh pihak universitas. Maka dari itu penelitian ini bertujuan untuk menerapkan logika fuzzy dengan metode Tsukamoto dalam memprediksi jumlah mahasiswa baru untuk tahun mendatang pada Universitas xyz. Dalam penelitian ini, metode kuantitatif dengan pendekatan deskriptif digunakan untuk mengumpulkan dan menganalisis data jumlah mahasiswa baru di 9 fakultas. Langkah-langkah penelitian ini meliputi fuzzyfikasi, inferensi fuzzy, dan defuzzyfikasi yang sesuai dengan flowchart logika fuzzy. Fuzzyfikasi digunakan untuk mengubah data numerik menjadi variabel linguistik, sedangkan inferensi fuzzy dilakukan untuk menyusun aturan-aturan fuzzy berdasarkan data historis yang ada. Selanjutnya, defuzzyfikasi digunakan untuk menghasilkan nilai prediksi jumlah mahasiswa baru. Hasil dari penelitian ini menunjukkan bahwa logika fuzzy dengan metode Tsukamoto dapat digunakan dalam memprediksi jumlah mahasiswa baru pada Universitas xyz. Dengan demikian, metode ini dapat membantu pihak universitas dalam perencanaan dan pengambilan keputusan terkait jumlah mahasiswa baru.
PERANCANGAN SISTEM INFORMASI ABSENSI GURU BERBASIS WEB DI SMK NEGERI 1 SINTUK TOBOH GADANG
Authors: Mairani Mairani , Pernanda Anggri Yulio , Kurniawan Haris
Published: February 2024

Proses absensi guru di SMK Negeri 1 Sintuk Toboh Gadang saat ini mengalami kendala dalam hal efektivitas dan efisiensi, yang seringkali mencakup masalah seperti kecurangan dalam pencatatan kehadiran guru atau keterlambatan dalam pengambilan absensi harian. Tujuan dari penelitian ini adalah merancang sebuah sistem informasi absensi guru berbasis web di SMK Negeri 1 Sintuk Toboh Gadang. Sistem ini bertujuan untuk memantau kehadiran guru dengan lebih baik, menyederhanakan proses rekapitulasi data absensi, dan mengurangi penggunaan waktu, karena prosesnya akan dilakukan secara terkomputerisasi.

Dalam penelitian ini, analisis dilakukan dengan menerapkan konsep Siklus Hidup Pengembangan Perangkat Lunak (Software Development Life Cycle - SDLC). Sistem informasi absensi guru dirancang menggunakan bahasa pemodelan Unified Modeling Language (UML). Pembangunan sistem informasi absensi guru ini melibatkan bahasa pemrograman seperti PHP, HTML, JavaScript, CSS, dan penggunaan database MySQL. Selain itu, sistem ini melalui tahap pengujian alpha dan beta untuk memastikan kinerjanya yang optimal sebelum diimplementasikan.

Berdasarkan hasil penelitian, sistem informasi yang telah dirancang menggunakan model Waterfall, yang terdiri dari lima tahap utama, yaitu analisis kebutuhan, desain program, penulisan kode program, pengujian program, dan penerapan program. Hasil dari pengujian beta menunjukkan bahwa validasi dari tenaga ahli memberikan rata-rata sebesar 88,54%, sementara kuesioner yang diisi oleh pengguna memberikan rata-rata sebesar 90,98%. Kedua hasil ini menunjukkan bahwa sistem ini mendapat penilaian "sangat baik" dari kedua pihak yang terlibat dalam pengujian.