bluuebunny/crossref_metadata_2025 huggingface dataset:
The Post-2020 Surge in Global Atmospheric Methane Observed in Ground-based Observations
Authors: Wu Jennifer , Luo Sherry , Zeng Zhao-Cheng , Turner Alex , Wunch Debra , García Omaira , Hase Frank , Kivi Rigel , Ohyama Hirofumi , Morino Isamu , Sussmann Ralf , Rettinger Markus , Té Yao , Deutscher Nicholas Michael , Griffith David W.T , Shiomi Kei , Liu Cheng , Notholt Justus , Iraci Laura T , Pollard David Frank , Warneke Thorsten , Roehl Coleen Marie , Pongetti Thomas J , Sander Stanley , Yung Yuk L.
Published: April 2024

Methane (CH4) is a potent greenhouse gas with high radiative forcing and
a relatively short atmospheric lifetime of around a decade. We used a
decade-long dataset (2011-2022) from the Fourier transform spectrometer
at the California Laboratory for Atmospheric Remote Sensing (CLARS-FTS)
to quantify a dramatic increase in methane observed in 2020. We report
an increase of 1.13 ppb/month starting in 2020 until the end of 2021,
compared to a growth rate of 0.345 ppb/month from 2016 to 2019. The
observed increase in methane concentrations in 2020 is of significant
concern due to its potential contribution to global warming. The Total
Carbon Column Observing Network (TCCON) is then used to examine the
global geospatial variability of the increase in methane. The results
suggest an approximately uniform rise in methane globally. Finally,
results from a two-box model used to simulate atmospheric chemical
processes of methane production and loss indicate that changes in OH
alone are insufficient to explain the rise in atmospheric methane.
Encouragingly, recent data from 2022 suggest a deceleration in the
methane growth rate, indicating a potential slowdown in the methane
increase observed in 2020.
An assessment of representing land-ocean heterogeneity via convective adjustment timescale in the Community Atmospheric Model 6 (CAM6)
Authors: Goswami Bidyut Bikash , Polesello Andrea , Muller Caroline
Published: April 2024

The time needed by deep convection to bring the atmosphere back to
equilibrium is called convective adjustment timescale or simply
adjustment timescale, typically denoted by 𝜏. In the Community
Atmospheric Model (CAM), convective adjustment timescale is a tunable
parameter with one value, 1 hour, worldwide. Albeit, there is no
justified reason why one adjustment timescale value should work over
land and ocean both. Continental and oceanic convection are different in
terms of the vigor of updrafts and hence can have different longevities.
So it is logical to investigate the prescription of two different
convective adjustment timescales for land (𝜏𝐿) and ocean (𝜏𝑂) . To
understand the impact of representing land-ocean heterogeneity via 𝜏, we
investigate CAM climate simulations for two different convective
adjustment timescales for land and ocean in contrast to having one value
globally.

Following a comparative analysis of 5-year-long climate simulations, we
find 𝜏𝑂 = 4 hrs and 𝜏𝐿 = 1 hr to yield the best results. Particularly,
we find better MJO simulations. Although these 𝜏 values were chosen
empirically and require further tunning, the conclusion of our finding
remains the same, which is the recommendation to use two different 𝜏
values for land and ocean.
A synoptic view of mantle plume shapes enabled by virtual reality
Authors: Lu Qianyi , Rudolph Maxwell L
Published: April 2024

The shapes of mantle plumes are sensitive to mantle viscosity, density
structure, and flow patterns. Increasingly, global tomographic models
reveal broad plume conduits in the lower mantle and highly-tilting
conduits in the mid and upper mantle. Previous studies mostly relied on
2D slices to analyze plume shapes, but fully investigating the
complexity of 3D plume structures requires more effective visualization
methods. Here, we use immersive virtual reality (VR) headsets to
visualize the full-waveform global tomographic models SEMUCB-WM1 and
GLAD-M25 (V). We develop criteria for the
identification of plume conduits based on the relationship between the
plume excess temperature and the V anomaly
(∂V). We are able to trace 20 major plume conduits,
measure the offsets of the conduits in azimuth and distance with respect
to the hotspots, calculate the tilt angle, and evaluate the
∂V along all traced conduits. We compare our traced
conduits with the conduits predicted by global mantle convection models
and vertical conduits. The wavespeed variations along conduits traced
from each tomographic model are slower than modeled or vertical
conduits, regardless of which tomographic model they are evaluated in.
The shapes of traced conduits tend to differ greatly from modeled
conduits. Plume ponding and the emergence of secondary plumes, which
could result from a combination of different plume compositions, phase
transitions, small-scale convection, and variations in viscosity and
density of the ambient mantle, can contribute to the complex observed
plume shapes.
Habitat quality or quantity? Changes in niche marginality across 21 species of plant and animal suggest differential responses between highland and lowland species to past climatic changes
Authors: Araya-Donoso Raúl , Biddy Austin , Munguía-Vega Adrian , Lira-Noriega Andrés , Dolby Greer
Published: April 2024

Climatic changes can affect species distributions, population abundance,
and evolution. Such organismal responses could be determined by the
amount and quality of available habitats, which can vary independently.
In this study, we assessed changes in habitat quantity and quality
independently to generate explicit predictions of the species’ responses
since the Last Glacial Maximum (LGM) climatic changes. We built
ecological niche models and distribution models for 21 reptile, mammal,
and plant taxa from the Baja California peninsula inhabiting lowland or
highland environments. Geological data suggests the CCSM global
circulation model is a better representation of LGM climate for the Baja
California peninsula. Significant niche divergence was detected for all
clades within species, along with significant differences in niche
breadth and area of distribution between northern and southern clades.
Most clades showed a reduction in distribution area towards LGM.
Further, niche marginality (used as a measure of habitat quality) was
higher during LGM for most clades, except for northern highland species
who experienced improvements in both. Our results suggest that changes
in habitat quantity and quality can affect organismal response
independently. This allows the prediction of genomic signatures
associated with changes in effective population size and selection
pressure that could be explicitly tested to support our models.
VCE-AnomalyNet: A New Dataset Fueling AI Precision in Anomaly Detection for Video Capsule Endoscopy ⋆
Authors: Thakur Advika , Handa Palak , Goel Nidhi , Gunjan Deepak
Published: April 2024

Video capsule endoscopy (VCE) is a minimally invasive diagnostic
technique that helps in the detection of various anomalies like polyps,
ulcers, aphthae, etc, within the intestinal lumen. Due to the high no.
of frames in VCE and the low doctor-to-patient ratio across the globe,
the inspection time of VCE is about 2-4 hours. Research has shown that
Artificial Intelligence (AI) has the potential to decrease the
inspection time in VCE reading and improve upon the false-positive
rates. However, the lack of AI data is a big hindrance to it. To address
this issue, we present the VCE-AnomalyNet Dataset, a new AI dataset
fueling AI precision in anomaly detection for VCE. The dataset comprises
108,832 accurately labeled frames with bounding box annotations in YOLO
(You Only Look Once) format. These frames have been compiled from
multiple open-source datasets, aiming to support research in automatic
anomaly detection in VCE. The dataset is available at
VCE-AnomalyNet Dataset
(zenodo.org) .
Assessing current clinical eruption stage of mandibular third molars by dental panoramic radiography
Authors: Vesala Tommi , Ventä Irja , Snäll Johanna , Marinescu Gava Magdalena , Ekholm Marja
Published: April 2024

Objective: We examined whether dental panoramic radiography (PAN) can be used to identify the clinical stage of eruption of mandibular third molars at the time of radiological examination.
Materials and methods: Cross-sectional data included records from clinical oral examination and PANs of university students. In the retrospective analysis of 345 mandibular third molars in 189 participants (20% men, 80% women; mean age 20.7 years; standard deviation [SD] ± 0.6), clinical stages of eruption were compared with their radiographic depth in bone, inclination, and root development. Statistics included χ2, Mann-Whitney U tests, and logistic regression.
Results: Significant (p < 0.001) predictor variables for assessing the clinical stage of eruption were radiographic depth in bone and inclination. All teeth radiologically at a depth of the cementoenamel (CE) junction of the neighbouring second molar or deeper were clinically unerupted. Above the CE junction, 80% of vertical and 97% of distoangular teeth were connected to the oral cavity, and 82% of mesioangular and 69% of horizontal teeth were clinically unerupted.
Conclusion: All teeth below or at the CE junction are clinically unerupted. Above the CE junction, stage of eruption should be assessed together with the inclination, but horizontally inclined teeth are recommended to be verified clinically.
THE EFFECT OF LAMTORO LEAF FLOUR (Leucaena leucocephala) IN FEED ON THE GROWTH OF TILAPIA (Oreochromis niloticus)
Authors: Mukaromah Fadilatul , Haetami Kiki , Andhikawati Aulia , Grandiosa Roffi
Published: April 2024

Tilapia is favored for its rapid growth and adaptability to diverse aquatic environments, making it a widely cultivated fish. In fish farming activities, feed provides the largest contribution to the total production cost. So that farmers must use alternative feed to reduce feed costs. One alternative feed for tilapia that is easy to obtain, affordable and sustainably available is lamtoro leaves. The aim of this research was to determine the effect of adding lamtoro leaf flour to feed at different concentrations on the growth of tilapia (O. niloticus). The average weight of tilapia at the beginning of the study was 5,7 grams. This research was conducted for 40 days starting in May until June 2023, taking place in Kertayasa Village, Cijulang District, Pangandaran Regency. The method used in this research was an experimental method using a completely randomized design (CRD) with 4 treatments and 3 replications, namely treatment A: 100% commercial feed (control), treatment B: commercial feed + 5% lamtoro leaf flour, treatment C: commercial feed + 10% lamtoro leaf meal, and treatment D: commercial feed + 15% lamtoro leaf meal. Parameters observed included daily growth rate (SGR), absolute length growth, and water quality. The results indicated a significant effect (P<0.05) on the daily growth rate (SGR) by incorporating lamtoro leaf flour into the feed. The highest treatment, observed in treatment C at 50%/day, resulted in the maximum absolute length growth of 4.63 cm. The water quality parameters during the study were in the proper range for the life of tilapia (O. niloticus).  Providing lamtoro leaf flour in feed does not have a negative effect on growth and water quality. Keywords: Tilapia fish, lamtoro leaf meal, growth.
Estrategias de calefacción pasiva y su impacto en el confort térmico en viviendas altoandinas en Apurímac-Perú
Authors: Cerron contreras Amanda
Published: April 2024

La presente investigación tiene como objetivo determinar el impacto que tendrían las estrategias de calefacción pasiva en el confort térmico de los pobladores en viviendas alto andinas en Sabaino Apurímac, que se caracterizan por tener un clima frio y además estar expuestos al problema de las heladas propias de dichos lugares. Esta investigación es de diseño no experimental, de tipo descriptivo correlacional y muestreo no probabilístico. Se realizó mediciones de las variables térmicas en el lugar de estudio para analizar la situación actual que enfrentan en dichas zonas y una encuesta realizada a 34 especialistas del área  para establecer cuáles son las estrategias pasivas de calentamiento más óptimos que se adecuarían para zonas altoandinas para lograr una mejora en el confort térmico en las viviendas. Los resultados muestran que la estrategias de calefacción pasiva influirían significativamente en el confort térmico de los pobladores en viviendas altoandinas, asimismo se concluye que las estrategias más idóneas que pueden ser implementadas en viviendas ya construidas son los tragaluces cenitales, invernaderos adosados, la captación directa a través de las ventanas orientadas al N, E y O son más eficientes; en conjunto con la incorporación de material aislante en la envolvente para lograr incrementos de temperatura de hasta 10°C aproximadamente.
Penerapan Analisis Regresi Robust dalam Penentuan Faktor Dominan Cuaca Terhadap Penyebaran Covid-19 di Jawa Barat
Authors: Pradana Aditya Putra , Nisa Khoirin
Published: April 2024

Penyebaran Corona Virus Disease-2019 (COVID-19) semakin mengkhawatirkan di dunia, khususnya di provinsi Jawa Barat, Indonesia. Selain penularan dari manusia ke manusia, parameter meteorologi dianggap menjadi faktor efektif dalam penyebaran virus tersebut. Parameter meteorologi tersebut diantaranya terkait dengan cuaca dan iklim di suatu daerah. Melalui kajian Badan Meterologi, Klimatologi, dan Geofisika (BMKG) Indonesia ditemukan bahwa cuaca dan iklim merupakan faktor pendukung terjadinya wabah COVID-19 sehingga sangat cocok apabila dilakukan penelitian dan analisis mengenai faktor yang paling berpengaruh terhadap penyebaran COVID-19. Pada penelitian ini, bertujuan untuk mengetahui faktor-faktor dominan apa saja yang mempengaruhi penyebaran COVID-19 di provinsi Jawa Barat. Metode analisis yang akan digunakan yaitu metode S-estimator yang merupakan salah satu metode analisis regresi robust, sebab terdapat data yang merupakan pencilan sehingga distribusi dari residu tidak normal. Data yang digunakan diambil dari situs resmi Badan Meteorologi, Klimatologi, dan Geofisika Indonesia dan situs Kawal COVID-19 dengan variabel bebas yaitu suhu, kelembaban udara, lama penyinaran matahari, kecepatan angin, dan curah hujan, serta variabel terikatnya yaitu jumlah penderita positif COVID-19. Software dalam analisis tersebut menggunakan software IBM SPSS Statistic versi 25dan software R 3.4.3. Berdasarkan hasil penelitiannya, terlihat bahwa nilai R-square (adjusted) dengan regresi robust S-estimator sebesar 56,79% dan variabel bebas suhu dan lamanya penyinaran matahari mempengaruhi variabel jumlah penderita positif COVID-19 sehingga dapat disimpulkan bahwa kedua variabel bebas tersebut merupakan faktor dominan yang mempengaruhi penyebaran COVID-19 di Jawa Barat.
Laboratory Assessment of A Fixed Box-Type Breakwater as Temporary Coastal Protection Against Wave Actions
Authors:   School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam,  Selangor, Malaysia, Sazali Ilmi Fatihah , Haron Nuryazmeen Farhan ,   School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam,  Selangor, Malaysia
Published: April 2024

Coastal areas are vulnerable to the erosive forces of waves, particularly during storm events. Temporary coastal protection measures are often necessary to mitigate damage while permanent solutions are being developed. This study investigates the effectiveness of a fixed box-type breakwater as a temporary measure against wave action. Laboratory experiments were conducted to assess the performance of the breakwater under varying wave conditions. The wave attenuation performance of the proposed breakwater was tested in a series of early experiments in a two-dimensional (2D) wave flume under various conditions, including frequency and wave periods for different models (FB1 without membrane, FB2 with a single 46cm membrane, FB3 with 46cm and 56cm double membranes, and FB4 with a single 56cm membrane). Additionally, the flexible membrane's length was examined, along with other derived breakwater designs such as rectangle boxes and boxes joined by a single flexible membrane. Results indicate significant wave attenuation behind the breakwater, suggesting its potential efficacy in protecting coastal areas. According to the findings, the fixed breakwater (FB3 model) might successfully reduce waves by about 50% in moderately longer waves with a wave period of 2s. This article presents the methodology, experimental setup, results, and implications of the study, highlighting the suitability of fixed box-type breakwaters as a viable temporary coastal protection solution.
Sustainable Urban Drainage Systems (2014-2023) by Using Bibliometric Analysis Method
Authors:   Faculty of Engineering and Universitas Muhammadiyah Yogyakarta,  Indonesia, Ngong Deng Abraham Ayuen , Nursetiawan  ,   Faculty of Engineering and Universitas Muhammadiyah Yogyakarta,  Indonesia, Ikhsan Jazaul ,   Faculty of Engineering and Universitas Muhammadiyah Yogyakarta,  Indonesia
Published: April 2024

Sustainable urban drainage systems (SUDS) are increasingly crucial for stormwater management. This bibliometric review analyses research trends on sustainable urban drainage systems over the past decade (2014- 2023) using data from Scopus. The analysis found 705 articles, 192 conference papers, 85 book chapters, and 64 reviews on sustainable urban drainage systems. Publication volume increased by 66% during the study period, indicating rising research interest. The most cited article (294 citations) was a 2019 review by Andrés-Doménech et al. on innovations in sustainable urban drainage systems. Analysis of author keywords revealed 8 clusters of research topics, with "sustainable urban drainage systems" being the dominant term with 889 keywords. Although general sustainable urban drainage system terms prevail, the use of keywords related to network visualization methods like VOS viewer is rapidly increasing. The United Kingdom published the most SUDS research (315 articles), followed by China (149), Spain (135), the United States (126), and Italy (107 articles). Research was concentrated in the environmental science and engineering fields. However, this bibliometric analysis provides insights into SUDS research trends, the most active countries and institutions, and emerging topic areas. The rapid increase in publications and use of network visualization techniques demonstrates SUDS' growing importance in urban stormwater management. The results can help inform future research directions, such as applying advanced data analytics to improve SUDS design and performance. Expanding bibliometric analyses with additional techniques like VOS viewer could further enhance understanding of this critical area of urban environmental research. Developing bibliometric methods and adding feature extraction algorithms when selecting features used to model data can increase the efficiency and accuracy of the data on sustainable urban drainage systems. The development of research data using Vos viewers images with this type of data processing research can also be maximized for research related to the sustainable urban drainage system.
State-of-the-art of electrospun nanocomposite nanofibers and membranes with carbon nanoparticles—Prevailing progressions
Authors: Kausar Ayesha , Ahmad Ishaq
Published: April 2024

This state-of-the-art overview emphasizes electrospinning technique and resulting electrospun nanofibers and nanofibrous membranes. Consequently, the electrospinning method as well as the formation and features of the electrospun nanofiber/membrane nanomaterials have been described. Properties of the electrospun nanofibers have found to be enhanced several folds through the incorporation of carbon nanoparticles in the nanofibers. Important properties and utilizations of carbon nanocomposite electrospun nanofibers were seemed to be affected by nanoparticle amount and dispersal. Importantly, diameter, microstructure, and physical features (thermal, mechanical, conductive, etc.) of the nanofibers and resulting membranes can be affected by the nanofiller behavior. The high performance electrospun nanofibers have been used to form efficient nanocomposite nanofibrous membranes. Sequentially, the electrospun nanocomposite nanofibrous membranes have been applied in technical membrane applications.
A perspective overview of the influence of the COVID-19 pandemic on the educational sector
Authors: Ukhurebor Kingsley Eghonghon , Oaihimire Idemudia Edetalehn , Wada Zira Bitrus , Jokthan Grace , Inegbedion Juliet , Ofulue Christine , Efanodor-Obeten Harriet Omokiniovo , Otsupius Anthonia Ighiebemhe , Tanglang Nebath , Mai-inji Ahmed Yusuf , Ashawa Moses
Published: April 2024

There is no denying that the COVID-19 pandemic resulted in significant stress worldwide and impacted practically every aspect of human activity. The impacts of this deadly virus on education are not seen as gaining much-needed focus from the scientific research community. The majority of educational institutions globally switched to online instruction during the COVID-19 pandemic. However, there were considerable differences in the technical readiness of various nations. In this regard, the study’s attempt to provide a way forward for how the educational sector ought to manage the challenges brought on by COVID-19 issues in support of online educational activities. Since some of the consequences that resulted have an impact on the educational sector, the answers presumably also should have included innovations that would improve scientific research to lessen its effects. Particularly, it appears there is still much that has to be done about the impact of the COVID-19 pandemic on the educational sector. Hence, this perspective review study aims to explore the potential relationship between the COVID-19 pandemic and the educational sector while suggesting a way forward.
Using a Parameter Diagram as a DoE Planning Tool
Authors: Barsalou Matthew , WILCYNSKA Karolina , SARAIVA Pedro Manuel
Published: April 2024

This paper describes the p-diagram (parameter-diagram) and its application in planning a DoE (Design of Experiments). A case study describing an actual problem from industry is presented where the planning phase started to go wrong as difficulties in selecting the right variables for the DoE were discovered. Furthermore, running these experiments became prohibitively expensive, due to the large number of such experiments that would be needed, and though the exploitation of a p-diagram it was then possible to come up with a feasible DoE.
An Accurate and Robust Genetic Algorithm to Minimize the Total Tardiness in Parallel Machine Scheduling Problems
Authors: RAMADAN Saleem Zeyad , ALMASARWAH Najat , ABDELALL Esraa S. , SUER Gursel A. , ALBASHABSHEH Nibal T.
Published: April 2024

This paper uses a Genetic Algorithm (GA) to reduce total tardiness in an identical parallel machine scheduling problem. The proposed GA is a crossover-free (vegetative reproduction) GA but used for four types of mutations (Two Genes Exchange mutation, Number of Jobs mutation, Flip Ends mutation, and Flip Middle mutation) to make the required balance between the exploration and exploitation functions of the crossover and mutation operators. The results showed that use of these strategies positively affects the accuracy and robustness of the proposed GA in minimizing the total tardiness. The results of the proposed GA are compared to the mathematical model in terms of the time required to tackle the proposed problem. The findings illustrate the ability of the propounded GA to acquire the results in a short time compared to the mathematical model. On the other hand, increasing the number of machines degraded the performance of the proposed GA.
A Combination of Association Rules and Optimization Model to Solve Scheduling Problems in an Unstable Production Environment
Authors: DEL GALLO Mateo , CIARAPICA Filippo Emanuele , MAZZUTO Giovanni , BEVILACQUA Maurizio
Published: April 2024

Production problems have a significant impact on the on-time delivery of orders, resulting in deviations from planned scenarios. Therefore, it is crucial to predict interruptions during scheduling and to find optimal production sequencing solutions. This paper introduces a selflearning framework that integrates association rules and optimisation techniques to develop a scheduling algorithm capable of learning from past production experiences and anticipating future problems. Association rules identify factors that hinder the production process, while optimisation techniques use mathematical models to optimise the sequence of tasks and minimise execution time. In addition, association rules establish correlations between production parameters and success rates, allowing corrective factors for production quantity to be calculated based on confidence values and success rates. The proposed solution demonstrates robustness and flexibility, providing efficient solutions for Flow-Shop and Job-Shop scheduling problems with reduced calculation times. The article includes two Flow-Shop and Job-Shop examples where the framework is applied.
Integration of Overall Equipment Effectiveness and Six Sigma Approach to Minimize Product Defect and Machine Downtime
Authors: Nurprihatin Filscha , Rembulan Glisina Dwinoor , Andry Johanes Fernandes , Lubis Maulidina , WIDIWATI Ivana Tita Bella , VAEZI Ali
Published: April 2024

This study was conducted in a company that produces palm oil-based products such as cooking oil and margarine. The study aimed to encounter defects in packaging pouches. This study integrated the overall equipment effectiveness (OEE) with the six sigma DMAIC method. The OEE was performed to measure the efficiency of the machine. Three factors were measured in OEE: availability, performance, and quality. These factors were calculated and compared to the OEE world-class value. Then, the Multiple Linear Regression was performed using SPSS to determine the correlation between measurement variables toward the OEE value. Lastly, the six sigma method was implemented through the DMAIC approach to find the solution and improve the packaging quality. Supposing the recommendations are implemented, the OEE is expected to increase from 82% to 85%, with availability ratio, performance ratio, and quality ratio at, 99%, 86%, and 99.8%, respectively.
Towards an Optimal Motor Mounting Bracket Using Topology Optimization Combined with Sustainability and Manufacturing Cost Analysis
Authors: FASSI Hicham Fihri , ANIYOU Hadji
Published: April 2024

The engine is the most important component of a vehicle. It attaches to the main frame via the engine mounting bracket which supports weight and operating loads. The engine mount therefore plays a crucial role in the durability and comfort of the vehicle. This article contributes to the search for the most optimal model from the point of view of resistance, environmental impact, and manufacturing cost. This involves, on the one hand, optimizing the support by reducing its initial mass by 30%, and on the other hand, seeking suitable material and manufacturing process with the least environmental impact. To this end, topology optimization will be combined with an environmental assessment and a manufacturing cost analysis. Four materials will be tested and evaluated. Finally, a cost analysis will present a comparison between a conventional process and 3D printing.
Accumulation of Mn, Cu, and Zn in Flowers and Leaves of Catalpa bignonioides in an Urban Area Under Climate Change Conditions
Authors: Parzych Agnieszka , Yurchak Aliaksandra
Published: April 2024

Green areas are an important part of the urban landscape. Trees produce oxygen, provide shade, maintain soil moisture, and reduce the amounts of toxic gases and dust in the air. Due to the changing climate, species characteristic of other climatic zones, e.g. Catalpa bignonioides, are planted in urban parks in Poland, mainly due to the attractive appearance of the leaves and flowers. The aim of the study was to assess the content of Mn, Cu, and Zn in flowers and leaves of C. bignonioides in the urban park and to determine the value of bioconcentration coefficients (BCF) of these metals. The obtained results indicate that the flowers and leaves of C. bignonioides accumulate lesser amounts of manganese, copper, and zinc. It is a consequence of the limited bioavailability of these components in soils, due to too high pH values resulting from alkalinization of urban soils. The values of bioconcentration coefficients (BCF <1) confirm the low accumulation of Mn, Cu, and Zn in both leaves and flowers of C. bignonioides, due to the limited mobility of manganese, copper, and zinc compounds in the soils of the urban park and the low impact of falling dusts, which are the carriers of the analyzed components.
Digenea community structure of the Salema, Sarpa salpa (Linnaeus, 1758) (Teleostei, Sparidae), from the Central coast of Algeria
Authors: Boukadoum A. , Tazerouti F.
Published: April 2024

The main goal of the current work was to describe and analyse the Digenean community structure in Sarpa salpa. A total of 114 specimens of S. salpa were collected from the Central Coast of Algeria at six localities. The fish were immediately transported to the laboratory to be examined for digeneans. From 107 of the 114 S. salpa examined, a total of 8,722 specimens of seven species belonging to three families were recovered. Among them, Robphildollfusium fractum and Mesometra orbicularis were the most prevalent and abundant species. Moreover, Lepocreadium album was found for the first time in S. salpa from the coast of Algeria, and Centroderma spinosissima and Wardula capitellata represent new parasites to the Algerian digenean fauna that infect teleost fish. The component community of these Digeneans is characterised by R. fractum as its dominant species representing 62% of the total number of collected Digeneans, as well by a Shannon diversity index (H′) and Dominance Simpson index (D) of 1.03 and 2.23, respectively. According to Spearman's correlation test, Mesometra brachycoelia and W. capitellata were negatively correlated to the host biological factors. On the other hand, R. fractum showed a positive correlation between its mean abundance and the total length of the fish. With these findings, we provided the component structure of the Digenean fauna of S. salpa and highlighted their diversity, contributing to the biodiversity of the parasitic Platyhelminthes in Algeria.
Methodology for Selecting Optimal Routes for the Transportation of Dangerous Goods in Conditions of Risk Uncertainty
Authors: Pustiulha Serhii , Samchuk Volodymyr , Holovachuk Ihor , Prydiuk Valentyn , Klak Yuriy
Published: April 2024

* A risk situation is a type of uncertainty situation where events are likely to occur. In other words, risk is an estimated probability, and uncertainty is something that cannot be quantified. The greater the uncertainty when making a decision, the greater the degree of risk.

The investigation is devoted to the development of a unified methodology for selecting optimal (from the proposed alternatives) routes for transporting dangerous goods (any of the 9 standard classes) by road.

A model for determining two groups of risk components for transporting dangerous goods on separate routes is proposed, namely: parameters of risks of probability of occurrence of emergency situations and parameters that affect the risks of complexity of eliminating their possible consequences. This opened up opportunities for correct selection of criteria when forming a multi-criteria optimization problem of transportation.

Mathematical algorithms for a comprehensive solution of the multi-criteria optimization problem of routing dangerous goods transportation are developed using the classical criteria of Laplace, Wald, Savage, and Hurwitz.

To confirm the legal capacity of the proposed approach and mathematical apparatus, the optimal route for transportation of cylinders with technical gases through the transport network of Lutsk was calculated. Possible alternative transportation routes have been identified and safety criteria have been formalized for two groups of risk components
Lorawan-Based RSSI-Trilateration Model for Node Location: A Simulation Integrating Flora and Omnet++
Authors: Yi Loor Jiawey D. , Espinal Albert , Sanchez Padilla V.
Published: April 2024

This work presents the employing of LoRaWAN (Long Range Wide Area Network) for location applications through a network simulation to determine a mobile node position. We rely on FLoRa (Framework for LoRa) and OMNeT++ (Objective Modular Network Testbed in C++) simulator, which uses Python feature tools, following the calculation of node placement using the trilateration technique. Our method differs from others in that we calculate the FLoRa power loss and determine different simulation settings using the shadowing feature of the log-distance path loss model. We approached RSSI (Received Signal Strength Indicator) to measure the distance between the LoRa gateways and the nodes, establishing a link between these parameters. Our work aims to promote the integration of open-source tools for verifying signal intensity values based on node distance from gateways. We consider it useful for engineers in predicting signal behaviors according to topology and settings variations. During the experimentation, the network underwent different performances according to the transmission parameters considered during the simulation. This was critical when increasing the number of mobile nodes, leading to consuming computer capacity and resources. Through repetition of tests, we confirmed the lower intensity of the received signal as the node moves to farther positions, reaching consistent power indicators and positioning accuracy. Overall, the results show that LoRaWAN integrated with trilateration techniques can be practical in providing adequate performance for node positioning accuracy and long-distance communication with low power consumption.
R. K. GREVILLE’S FUNGUS NAMED “ORANGE SCLEROTIUM” IS SHOWN TO BE A MEMBER OF THE BOLETALES (FUNGI: BASIDIOMYCOTINA)
Authors: Watling Roy , Ortiz-Rivero J. , Martin Maria-Paz
Published: April 2024

Morphological and molecular data show the orange sclerotia depicted in Plate 101 of R. K. Greville’s Scottish Cryptogamic Flora to be a species of Penttilamyces (Coniophoraceae: Boletales), which is described here as new to science.
Maidekost Website Improvement Recommendations Based on User Experience and USE Questionnaire Evaluation
Authors: Maricar M. Azman , Edwar Edwar , Simangunsong Batara FS , Anisa Aura Pirdaraya Nur
Published: April 2024

The troublesome search for temporary housing information is the background for the creation of the Maidekost platform. The Maidekost website has existed since its inception but has not been operational until now. This raises the assumption that there is a problem with usability. Maidekost has been evaluated from a usability perspective with interviews and the USE Questionnaire. The results of a high usability predicate and a feasibility percentage of 79.96% were obtained and several things needed to be fixed. The focus of this study aims to provide recommendations for improvement in the form of a prototype and these recommendations are tested again with the USE Questionnaire. The results obtained are an increase in the average usability of 0.11 but does not affect the usability predicate, which is still at the high predicate. In terms of the percentage of eligibility, there was an increase of 1.95%, so that it became 81.91% which was initially feasible to be very feasible to use. In other words, the recommendations given are able to increase usability and can be implemented.
Evaluation and Improvement of User Interface Design in Mobile Delivery Services With User Centered Design Approach and Heuristic Evaluation (Case Study: Kirimaja Application)
Authors: Ardhani Ni Komang Sucitra , Wirdiani Ni Kadek Ayu , Rusjayanthi Ni Kadek Dwi
Published: April 2024

KirimAja is a mobile-based goods delivery service application that is useful for helping people to send goods easily. This application has several features for sending goods, such as the Sameday Service, Nextday Service, Regular Service, Check Rates, and Check Receipts features. Usability problems in the KirimAja application were found based on observations and responses found in the "Google Play Store" and "App Store", namely in an unattractive appearance and display of error messages that were not well understood, therefore a usability evaluation and improvement of the user interface design are needed help the user when using the application. Evaluation and improvement of the user interface design in the KirimAja application uses the User Centered Design approach and the Heuristic Evaluation method, while testing user satisfaction with the KirimAja application uses the System Usability Scale method. The design improvements made resulted in increased results, namely by using the Heuristic Evaluation method to get scores on the H5 Error Prevention and H9 Help Users Recognize, Diagnoze, and Recover from Errors aspects from 2 to 0, while using the System Usability Scale method experienced an increase in the grade scale from D to A.
Derajat Q Angle Memengaruhi Kecepatan Lari Remaja Pemain Sepak Bola: Studi Observasional Analitik
Authors: Rahma Sari Dini , Nugraha Made Hendra Satria , Indrayani Agung Wiwiek , Wiryanthini Ida Ayu Dewi
Published: April 2024

Pendahuluan: Genu valgum merupakan kondisi di mana kaki terpisah saat lutut disatukan atau disebut sebagai kaki X. Q angle adalah sudut patella yang terbentuk antara ligamentum patella dan garis lurus dari resultan gaya tarik quadriceps. Pemain sepak bola dengan bentuk lutut genu valgum dapat mengalami pergeseran pada tulang patella dan gangguan fungsional lainnya yang berpotensi mempengaruhi kecepatan lari. Tujuan penelitian ini adalah untuk mengetahui hubungan antara derajat Q angle dengan kecepatan lari pemain sepak bola remaja di Kecamatan Narmada Kabupaten Lombok Barat.

Metode: Penelitian ini menggunakan metode observasi analitik dengan pendekatan cross-sectional. Sebanyak 53 pemain sepak bola menjadi subjek penelitian. Variabel independen adalah derajat Q angle, sedangkan variabel dependen adalah kecepatan lari sejauh 60 meter yang diukur menggunakan stopwatch.

Hasil: Hasil penelitian menunjukkan bahwa dari 53 pemain sepak bola, 34 orang (64,15%) memiliki derajat Q angle yang dikategorikan sebagai normal, sementara 19 orang (35,85%) dikategorikan sebagai abnormal dengan kecepatan rata-rata 9,8. Hasil analisis spearman rho menunjukkan nilai p=0,001, mengindikasikan adanya hubungan signifikan antara derajat Q angle dengan kecepatan lari. Selain itu, nilai r=0,442 menunjukkan kekuatan hubungan antara derajat Q angle dengan kecepatan lari berada pada tingkat sedang.

Simpulan: Temuan penelitian ini menyimpulkan bahwa terdapat hubungan yang signifikan dan sedang antara derajat Q angle dengan kecepatan lari pemain sepak bola remaja di Kecamatan Narmada Kabupaten Lombok Barat. Pemain sepak bola yang memiliki derajat Q angle abnormal (35,85%) berisiko tinggi mengalami penurunan kecepatan lari dan dapat menyebabkan cedera yang lebih serius.

 

Kata Kunci: genu valgum, q-angle, kecepatan lari, cross-sectional, sepak bola
Analisa Fleksibilitas Hamstring dan Faktor Resiko terhadap Pemendekan Otot Hamstring pada Remaja Dewasa di Wilayah Ambokembang
Authors: DT Siti Sardianti , Paramitha Intan Azkia , Sabrina Maeyana Eka
Published: April 2024

Latar Belakang: Fleksibilitas adalah kemampuan jaringan atau otot untuk mencapai gerakan maksimal pada sendi tanpa adanya rasa sakit atau nyeri dari berbagai posisi. Otot hamstring, yang berperan sebagai penggerak fleksi lutut, dapat mengalami kerusakan jika tidak cukup fleksibel saat terjadi gerakan ekstensi lutut. Prestasi atlet dalam olahraga memerlukan persiapan matang dalam aspek fisik, teknik, emosional, dan spiritual, termasuk kesehatan fisik, dengan fokus pada kelenturan otot hamstring.

Metode: Penelitian ini merupakan penelitian kuantitatif non-eksperimental. Tujuan penelitian ini adalah menganalisis hubungan antara fleksibilitas hamstring dan faktor risiko pemendekan hamstring pada remaja dewasa di wilayah Ambokembang. Penelitian ini termasuk jenis cross-sectional, dengan variabel bebas meliputi umur dan jenis kelamin, dan variabel terikat adalah kejadian gangguan muskuloskeletal pada remaja. Indeks massa tubuh (IMT) dijadikan variabel kontrol.

Hasil: Berdasarkan analisis data dari 32 partisipan (22 laki-laki dan 10 perempuan), nilai IMT berkisar antara 19,0 hingga 23,3 dengan rata-rata IMT sebesar 21,47. Hasil pengukuran fleksibilitas otot hamstring menunjukkan nilai rata-rata sebesar 5,81, dengan nilai tertinggi mencapai 8 dan nilai terendah di angka 4. Kategori fleksibilitas otot hamstring terbagi menjadi baik (31,25%) dan cukup (68,75%).

Simpulan: Terdapat dominasi remaja dengan fleksibilitas hamstring rendah dibandingkan dengan yang memiliki fleksibilitas baik.

 

Kata Kunci: fleksibilitas, hamstring, sit and reach
Validitas dan Reliabilitas Two-Level Quick-Steadi Algorithm untuk Skrining Risiko Jatuh Lansia di Indonesia: Studi Observasional Analitik
Authors: Dewi Syamsumin Kurnia
Published: April 2024

Pendahuluan: Tingginya prevalensi jatuh pada lanjut usia (lansia) memiliki dampak signifikan terhadap morbiditas dan mortalitas. Skrining risiko jatuh menjadi penting untuk mengintervensi dan mencegah kejadian jatuh. Quick-STEADI Algorithm, modifikasi dari STEADI Algorithm, terbukti efisien dan memiliki nilai prediktif yang baik sebagai alat skrining risiko jatuh lansia. Meskipun demikian, telaah pustaka menunjukkan bahwa Algoritma ini belum diterapkan sebagai alat skrining risiko jatuh lansia di Indonesia. Penelitian ini bertujuan untuk menilai validitas dan reliabilitas Two-Level Quick-STEADI Algorithm (TLQSA) sebagai alat skrining risiko jatuh pada lansia berusia ?65 tahun.

Metode: Penelitian observasional analitik cross-sectional dilakukan di Pedukuhan Prenggan, Sidomulyo, Bambanglipuro, Bantul, pada Desember 2023. Populasi penelitian adalah warga Pedukuhan Prenggan berusia ?65 tahun. Sampel penelitian, sebanyak 30 subjek, dipilih dengan teknik purposive sampling. Data dikumpulkan melalui wawancara menggunakan kuesioner Quick-STEADI Bahasa Indonesia dan pemeriksaan Timed Up and Go (TUG) Test. Penyajian data dilakukan dalam bentuk tabel. Analisis data dilakukan dengan metode deskriptif-analitik. Uji validitas TLQSA menggunakan Pearson Product Moment untuk construct validity, dan uji reliabilitas dilakukan dengan Cronbach Alpha untuk mengukur internal consistency.

Hasil: Mayoritas subjek adalah laki-laki (53,3%), berusia 65-75 tahun (63,3%), janda/duda (53,3%), dan memiliki tingkat pendidikan SD (66,7%). Uji construct validity menunjukkan bahwa ke-5 item TLQSA memiliki nilai p<0,05, dengan nilai r untuk item 1: 0,652, item 2: 0,818, item 3: 0,652, item 4: 0,485, dan item 5: 0,890. Uji internal consistency menunjukkan koefisien reliabilitas ke-5 item sebesar 0,735.

Simpulan: TLQSA terbukti valid dan reliabel sebagai alat skrining risiko jatuh pada lansia berusia ?65 tahun.

 

Kata Kunci: validitas, reliabilitas, two-level quick-steadi algorithm, skrining, risiko jatuh lansia
TREATMENT OF SCABIOSIS AND TOXOCARIOSIS IN DOMESTIC CAT
Authors: Kadek Lia Pramita  , Putu Ayu Sisyawati Putriningsih  , I Gede Soma
Published: April 2024

Skin and digestive diseases are the most common problems encountered in cats. A six-month-old domestic cat with a body weight of 1.42 kg experienced problems with the skin and digestive system at the same time. Cases of cats complain that they often scratch and excrete worms when defecating, the feces are yellow and have a paste-like consistency. This research aims to determine the disease agent and intensity of infection that attacks cats so that appropriate treatment can be provided. On physical examination, alopecia, hyperkeratosis, crusting and scales were found on the head, bilateral ears, neck and elbow area. Supporting examinations carried out were skin examination using skin scraping, trichogram, cytological examination using the tape acetate method and otic swab with diffquick staining as well as fecal examination using the floating method and counting worm eggs using the Mc Master method. The diagnosis is confirmed based on the history, physical examination, and examination with results of scabiosis and toxocaryosis. The causative therapy used in this case was ivermectin (Ivomec®) injection at a dose of 300μg/kg BW subcutaneously given three times on days 0, 7 and 14 and pyrantel pamoate (Combantrin®) therapy at a dose of 25 mg/kg BW orally. Symptomatic therapy uses intramuscular injection of diphenhydramine HCl (2 mg/kg BW) and (chlorpeniramine maleate®) at a dose of 2 mg/head given 2x¼ orally given for three days, followed by supportive therapy given multivitamins and minerals (Caviplex®) given once a day orally for seven days. Topical therapy is given with sulfur soap to bathe cats at least once a week. The cat showed good progress starting from the third day, the level of pruritus decreased, then on the fourth day the cat did not expel worms from the anus and the stomach did not look as enlarged as when it was first examined, and on the sixth day it started to show hair growth, alopecia, crusting and hyperkeratosis began to decrease. After administering ivermectin the second time, the cat's case began to improve with the level of pruritus decreasing and the hair slowly growing. After the third injection, namely on the fourteenth day, the cat named Bolu was returned to its owner with improved skin condition and no longer scratching. Based on the history, physical examination and laboratory examination, the cat was given therapy by administering antihistamines, antiparasitics, worm medicine, as well as support by administering vitamins and topical use of sulfur soap. It is important for cat owners to consistently bathe their cats and give them regular deworming medication to prevent recurrent infections.
MALASSEZIA FUNGAL DERMATITIS AND RHIPICEPHALUS SANGUINEUS TICK INFESTATION IN MIXED BREED DOGS
Authors: Kresensia Cyntia Dosom  , Putu Ayu Sisyawati Putriningsih  , I Gede Soma
Published: April 2024

Dermatitis is the most common skin health problem in dogs whose causative agents are parasitic, bacterial, fungal and viral infections. The purpose of this paper is to diagnose and determine the success of dermatitis therapy due to Malassezia spp fungal infection and Rhipicephalus sanguineus tick infestation. A 7-month-old mixed breed dog weighing 4.5 kg was examined with complaints of itching and hair baldness. Clinical examination revealed alopecia on the face, chin, body and legs, scale on the head, papules on the abdomen, erythema on the cranial and caudal extremities with oily, rancid skin and Rhipicephalus sanguineus ticks on the hind legs. The results of cytological examination of skin taken by impression smear found the presence of Malassezia fungal agents. The results of the examination using the antibody kit showed negative results. Routine hematology examination showed the case dog had lymphocytosis and hyperchromic macrocytic anemia. Based on the history, physical examination, and supporting examination, the case dog was diagnosed with Malassezia fungal dermatitis and tick infestation with a prognosis of fausta.The therapy given was oral itraconazole, loratadine, fish oil, sebasol shampoo and multivitamin (sakatonic active). The results of therapy observed on day 14 showed that the condition of the case dog began to improve, characterized by a reduced scratching reaction, reduced scale, erythema, and papules, and superficial skin that was initially oily and rancid smelling had also begun to decrease.  The case dog's hair has grown on the head, abdomen and legs. Therefore, to avoid recurrent infections, owners need to avoid keeping the animal in a humid place and keep the animal's body clean as favorable conditions can trigger recurrent events, as well as reduce direct contact with stray dogs to prevent ticks.