bluuebunny/crossref_metadata_2025 huggingface dataset:
Barreras burocráticas y libertad de empresa: análisis de las implicancias administrativas en materia de regulación laboral
Authors: Cuba Erick Gregory , Hidalgo Balarezo Victor Manuel
Published: October 2024

Los autores analizan los efectos de las recientes modificaciones al procedimiento de eliminación y prevención de barreras burocráticas sobre la regulación de la tercerización laboral y las relaciones colectivas, en las que se ha incorporado. En ese contexto, se evalúa si es posible denunciar los efectos indirectos producidos por la regulación laboral en la actividad empresarial. Finalmente, se exponen algunos aspectos y factores que se debe tener en cuenta para ello.
ZrO2 Nanoparticles Filler-Based Mixed Matrix Polyethersulfone/Cellulose Acetate Microfiltration Membrane for Oily Wastewater Separation
Authors: Abbas Sura Mawlood , Al-Jubouri Sama Mohammed
Published: October 2024

Membrane technology has emerged as a dynamic field of study in academia and industry for treating produced oily wastewater. ZrO2 nanoparticles (ZrO2 NPs) filler-based mixed matrix polyethersulfone/cellulose acetate microfiltration membranes were fabricated and inspected in the oily wastewater remediation. The fabricated bare PES membrane, PES/CA blended polymers membrane, and PES/CA blended polymers incorporating ZrO2 NPs (ZrO2@PES/CA) membranes by phase inversion technique were inspected by field emission scanning electron microscopy, atomic force microscopy, Fourier-transform infrared spectroscopy, and measurement of water contact angle and porosity. The ZrO2@PES/CA membrane which consisted of 0.5 wt.% ZrO2 NPs (0.5%ZrPC) afforded increased hydrophilicity and reduced water contact angle from 70° for P membrane to 30.23°. Also, the 0.5%ZrPC membrane gave pure water flux of 88.89 L/m2.h, high oil rejection of 98.2% and showed remarkable antifouling capacity with a high flux recovery ratio of 89.3% and relative flux reduction of 34.3%. The effect of transmembrane pressure (1, 2, 3, and 4 bar), feed temperature (25, 40, and 50 °C), and an initial oil concentration (250, 500, 750, and 1000 mg/L) on the permeation flux and oil rejection of the 0.5%ZrPC membrane was investigated. The results revealed that ZrO2@PES/CA membranes have a significant potential for effective oil removal with high permeability and antifouling ability. The 0.5%ZrPC membrane confirmed its durability and reusability when kept an acceptable oil removal after 5 cycles.
Radiation Behavior of Synthesized LiTi Ferrite Based Microstrip Antenna in X Band
Authors: Kumar Dheeraj , Saxena Naveen Kumar , Singh Bhoopendra
Published: October 2024

The paper comprehensively explores the development, characteristics, and antenna applications of lithium titanium (LiTi) ferrite. Utilising a solid-state reaction technique, the study examines the substrate’s electrical, magnetic, and structural properties in detail. Additionally, it assesses the far-field radiation patterns of a magnetically-biased LiTi ferrite-based antenna. Key findings point to a noticeable reduction in mutual coupling and radiated power, along with an isotropic redistribution of minor side lobes. Comparative analysis with RT-duroid substrates in X band frequency spectrum highlights the LiTi ferrite-based antenna’s remarkable 62.85 % miniaturization and consistent directivity, along with a superior quality factor. These findings emphasise LiTi ferrite’s potential for compact, high-performance applications in demanding environments. LiTi ferrite’s advantages in miniaturisation and stability position it for specific applications, despite trade-offs in bandwidth, gain, and impedance compared to RT-duroid substrates.
MILP Based Differential Cryptanalysis on IVLBC and Eslice 64
Authors: Kaur Manjeet , Dey Dhananjoy
Published: October 2024

Lightweight block ciphers provide security to resource-limited devices. However, many of these ciphers lack security analysis against basic attacks. This paper provides a detailed security analysis of two lightweight block ciphers, IVLBC and Eslice-64, against differential attack. The designers of IVLBC and Eslice-64 claimed that their ciphers were secure against differential attack. In this paper, to substantiate existing cryptanalysis’s claims, we perform differential attack on these two ciphers using the mixed-integer linear programming (MILP) method. We incorporate the difference distribution table (DDT) probabilities into MILP models. We discover differential distinguishers up to seven and 15 rounds for IVLBC and Eslice-64, respectively. We improve the known distinguishers for Eslice-64 by one round. Further, we mount the key recovery attack on an eight-round IVLBC and a 16-round Eslice-64 with data/memory/time complexities of 249/ 250.59/249 and 263/212.58/263 respectively.
An analytic framework for theorizing the anti-gender agenda in education
Authors: Dalmaso-Junqueira Bruna , Moeller Kathryn
Published: October 2024

This article theorizes the global anti-gender movement in education. This conservative movement opposes “gender ideology,” which is perceived as a threat to traditional social values. Building on a systematic literature review of how the anti-gender movement shapes educational policies, politics, and practices, with a specific focus on Brazil and the US, this article presents a theoretical framework for conceptualizing: 1) the contested meanings of “gender ideology”; 2) its discursive components; 3) the characteristics and composition of anti-gender alliances; 4) the anti-gender agenda’s manifestations in curriculum, pedagogy, the social relations of schooling, and education policy. We attempt to highlight the ways in which anti-gender politics often operate together with racial politics to reveal the ways in which conservative, right-wing alliances, frequently predicated on and united through anti-Blackness, white supremacy, homophobia, transphobia, and misogyny, exert influence on educational policies, politics, and practices to simultaneously maintain a white supremacist, cis-heteronormative, and patriarchal state. We conclude with a discussion of the contradictions of this agenda and resistances to these conservative attacks on equity, inclusion, diversity, and human rights.
Epidemiology of Bruxism and Temporomandibular Joint Disorders (TMD) in Iranian Adults: A Cross-Sectional Study
Authors:   Social Determinants on Oral Health Research Center, Kerman University of Medical Sciences, Kerman, Iran, Amini Parviz , Sharifi Maryam ,   Department of Pediatric Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran, Aftabi Reyhane ,   Department of Pediatric Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran, Jahanimoghadam Fatemeh ,   Social Determinants on Oral Health Research Center, Kerman University of Medical Sciences, Kerman, Iran, Jahanimoghadam Hamidreza ,   Dentist, Private Practice, Kerman, Iran
Published: October 2024

Objective: The prevalence of bruxism in the literature has been reported differently. The aim of this study was to assess the prevalence of bruxism in patients aged 25–40 who were referred to Kerman Dental School. Methods: This analytical descriptive cross-sectional study was performed on 320 patients referred to the Department of Oral Medicine of Kerman Dentistry Faculty in the age range of 25 to 40 years old. The prevalence of bruxism as well as TMJ disorders were evaluated. Data were collected in a questionnaire and entered into SPSS version 24. Analyzing was done by a chi-square test at a significant level of 0.05. Results: The prevalence of bruxism was 23.8%, with superiority in women. Although clenching was observed in 95.5% of the patients, 84.4% showed premature contacts on teeth, most of them related to the non-working side, and 82.9% presented premature contacts on restorations, especially on the non-working side. Regarding TMD symptoms, pain was the most common (83.4%), and clicking and crepitus were seen in 42% and 6% of the patients, respectively. Also, in 63.7% of the subjects with bruxism, jaw deviation was observed, and 18.7% showed restricted jaw movement. Conclusion: The prevalence of bruxism in the studied population is in the range of similar studies. Regarding TMD, troublesome symptoms such as pain, jaw deviation, and limited mouth opening were the only ones significantly related to bruxism.
Poznámky k označení „moderní české“ v rané umělecké kritice
Authors: Prahl Roman
Published: October 2024

The paper offers a brief summary of the period debate on the topic among leading national-minded commentators on the local and international art scene in Prague. It recalls the links of the label “national” to various contemporary concepts of patriotism and traces the articulation of the art scene in traditional and innovative contexts. The use of the label “modern Czech” for period visual culture has undergone many transformations, culminating at the turn of the 19th and 20th centuries. At the time, local spokesmen for modernism asserted the difference between modern and period work. In doing so, however, they adapted some of the thought patterns from earlier domestic debates about art.
Effects of anodal transcranial direct current stimulation on postural stability in subacute stroke: A randomized control trial
Authors: Shakeb Somia , Obaid Baig Mirza , Abualait Turki , Obaid Sumaiyah , Yoo Woo‐Kyoung , Bashir Shahid
Published: October 2024

Anodal transcranial direct current stimulation (tDCS) promotes neuromodulation and neuroplasticity in the brain. The aim of this study was to determine the long‐term effects of the anodal tDCS on postural and trunk stability, physical performance, anticipatory postural adjustment and quality of life in sub‐acute stroke patients. Thirty‐six participants with sub‐acute stroke were divided into experimental and control groups using sealed envelope randomization. Outcome measures comprised the Postural Assessment Scale for Stroke, Trunk Impairment Scale, Time Up and Go Test, Functional Reach Test, and Stroke‐Specific Quality of Life Scale. Assessments were conducted at 0, 3, 6, 9, and 12 weeks. Within‐group analysis revealed significant improvement in both the experimental (p‐value < 0.05) and control groups (p‐value < 0.005). Notably, significant effects were observed in postural stability after intervention, and during one of the detraining assessments, the experimental group showed superior results compared to the control group in subacute stroke. Anodal tDCS yield significant short‐ and long‐term effects on postural stability, while short term effects on trunk stability. Additionally, long term effects were observed on the physical performance and anticipatory postural adjustments while no effects at quality of life either short or long term basis among the subacute stroke patients.
On Plaintiffs’ Strategic Information Acquisition and Disclosure during Discovery
Authors: Ayouni Mehdi , Friehe Tim , Gabuthy Yannick
Published: October 2024

We analyze how a plaintiff acquires damage-level information and discloses it to the defendant during the discovery process when the plaintiff knows that the defendant is privately informed about the plaintiff’s probability of winning at trial. The plaintiff can design the process for generating the damage-level information but cannot omit or misrepresent it. She does this with an understanding of how the defendant’s updated beliefs after the discovery stage will impact pretrial negotiations. We find that the plaintiff prefers full disclosure when deciding between a pooling or a screening settlement demand depends on the damages level. In other scenarios, she is indifferent to how much information the discovery stage conveys about the damage level to the defendant.
Conceptualisation of event roles in L1 and L2 by Japanese learners of English: a cross-linguistic comparison of perspectives of event construal
Authors: Qu Jiashen , Miwa Koji
Published: October 2024

Events can be perceived from different perspectives. Langacker, Ronald W. (1990. Subjectification. Cognitive Linguistics 1. 5–38) typologically categorised the perspectives in event construal as subjective construal and objective construal based on how egocentric a perspective is. Compared with Western languages, such as English, Japanese is argued to be a language that favours subjective construal. However, little empirical work has tested this assumption directly. We investigated whether Japanese and English construe events from different perspectives by focusing on the linguistic encodings of event roles “agent” and “patient”. Our findings show that when selecting event roles as sentence subjects, Japanese speakers prioritised animacy over agency whereas English speakers emphasised agency (while also considering animacy). This can be attributed to the different preferences of the two languages for the degree of egocentricity in event construal. Furthermore, we explored how L1-based conceptualisation of event roles influences the linguistic expressions of event roles in L2. Our results demonstrate that Japanese learners of English had difficulty reconceptualising event roles in L2 English. This study adds a piece of quantitative evidence to the cognitive linguistics theory on subjective construal in Japanese and questions the universality of the agent-first hypothesis in the Thematic Hierarchy.
Rings whose clean elements are uniquely strongly clean
Authors: Danchev Peter V. , Hasanzadeh Omid , Javan Arash , Moussavi Ahmad
Published: October 2024

We define the class of CUSC rings, which are rings whose clean elements are uniquely strongly clean. These rings are a common generalization of the so-called USC rings, introduced by Chen–Wang–Zhou in J. Pure Appl. Algebra (2009), which are rings whose elements are uniquely strongly clean. These rings also generalize the so-called CUC rings, defined by Călugăreanu and Zhou in Mediterranean J. Math. (2023), which are rings whose clean elements are uniquely clean. We establish that a ring is USC if and only if it is simultaneously CUSC and potent. Some other interesting relationships with CUC rings are obtained as well.
Tangerine fruit peel extract mediated biogenic synthesized silver nanoparticles and their potential antimicrobial, antioxidant, and cytotoxic assessments
Authors: Al hamza Hasoon Buthenia Abd , Mahmood Bassam Shaker , Mohamed Erieg Abdulwahab , Jabir Majid Sakhi , Jawad Kareem Hussein , Hussein Nehia Neama , Sulaiman Ghassan Mohammad , Dewir Yaser Hassan , Mendler-Drienyovszki Nóra
Published: October 2024

The utilization of plant bioactive composites has concerned substantial attention due to their possible use in the development of novel antibiotics, containing the environmentally sustainable synthesis of nanoparticles. In the current study, a green and eco-friendly process was employed to synthesize silver nanoparticles (Ag-NPs) and to evaluate their anti-bacterial, anti-oxidant, and anti-cancer potentials. The characterization of the Ag-NPs involved UV-vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). The UV-vis spectrum of Ag-NPs was 437 nm. The FTIR absorption peaks detected at 685.48 cm−1 confirmed their characteristics. The FESEM displayed that Ag-NPs have an average size of 30 nm. The TEM revealed that the Ag-NPs have an irregular spherical shape with 16 nm size distribution. The XRD results provided a strong indication that the green synthesized Ag-NPs was of high purity with crystalline nature. The anti-bacterial properties were investigated at different concentrations for both the ethanolic tangerine peel extract and Ag-NPs. The results of anti-bacterial activity showed that 100 µg·mL−1 was potent concentration, but the Ag-NPs were more effective than the ethanolic tangerine peel extract. For the ethanolic extract, the inhibition zone was 17.50 ± 0.20 mm for K. pneumoniae and 14.40 ± 0.20 mm for B. cereus. For the Ag-NPs, the inhibition zone was 25.50 mm for K. pneumoniae and 20.50 mm for B. cereus. Furthermore, the antioxidant examination revealed more potent free radical scavenging activity of the Ag-NPs than the ethanolic peel extract alone. The ethanolic extract ranged 46–77% while the Ag-NPs ranged 57–88%. Additionally, the anti-proliferative of the Ag-NPs against the lung cancer cell line (A549) was more potent than the ethanolic extract alone. The cytotoxic activity was 90.03% and 78.50%, respectively. The anti-proliferative effect of Ag-NPs is attributed to cell death, induced apoptosis, and enhanced generation of reactive oxygen species. Our findings highlight the potential and further utilization of Ag-NPs in medicinal applications particularly for cancer therapeutics.
Burden and awareness of anemia among adolescent girls of residential school in Telangana
Authors: Kamble Bhushan D. , John Remya Mary , Kona Chandralekha , Reddy Mounika , Kundapur Rashmi , Agarwal Neeraj
Published: October 2024

Objectives

Adolescence is an important transition phase and the burden of anemia among adolescent school-going children is not well explored. The present study was carried out to determine the prevalence of anemia among school-going adolescent girls and to explore their awareness on anemia.

Methods

A cross-sectional study was conducted among 217 adolescent girls studying in a residential school of Bibinagar village, Telangana. A pre-tested, semi-structured questionnaire was administered to collect the data. Hemoglobin (Hb) was estimated using TrueHb. Data was entered into excel and was analyzed using SPSS software version 21.

Results

The mean (±SD) age of the adolescent girls was 13.8 (±0.99) years. About 74.2 % of the girls were in 12–14 years’ age group. About 91.7 % had attained menarche. The prevalence of anemia was 81.6 % with a mean (±SD) Hb of 9.5 (±2.7) g/dl among adolescent girls. Among the adolescent girls, 32.7 % had severe anemia, 31.8 % had moderate anemia and 17.1 % had mild anemia. About 86.2 % adolescent girls had heard of anemia while 60.8 % adolescent girls felt that anemia is preventable and only 27.6 % were aware about iron-rich foods. About 38 % of adolescent girls were not aware of any causes of anemia.

Conclusions

The prevalence of anemia was very high among the school-going adolescent girls of rural Telangana. The awareness regarding causes of anemia and iron-rich foods was low among study adolescent girls. Thus, there is a dire need to conduct frequent Test, Treat and Talk (T3) Anemia camps in schools through district school health program.
A typology of the Arabic system of mood
Authors: Bardi Mohamed Ali
Published: October 2024

This article is about the interpersonal side of the clause in Arabic. It more specifically studies all the different speech functions inherent in the exchange of meanings: offer, command (viz. proposals), statement, and question (viz. propositions). The main question that this article seeks to answer is how Arabic realizes these different speech functions through variations in mood choices. The purpose of the article is to fill a gap in the literature. In fact, there have not been many major attempts to describe the Arabic system of mood in the reference grammars of Arabic. Although this article defines the delimitation of the system of mood in Arabic from the perspective of systemic functional linguistics, it also draws from the work of earlier Arab grammarians which has been either ignored or misinterpreted for centuries. For the purpose of this study, dialogic texts from various sources have been analysed including scenes from movies, plays, novels, and The Noble Quran. The findings show that the system of mood in Arabic is different from its English counterpart and from that of other languages.
LINCing learners to digital literacy: supporting social integration and English language learning during COVID-19
Authors: Hanks Robert , Turin Mark , Yeung H. Henny
Published: October 2024

Many newcomers to Canada experience significant difficulties adjusting to life in their new community, with few more challenging than learning English. While Canada’s Language Instruction for Newcomers to Canada (LINC) program suggests a pathway to social integration, ideologies pertaining to language and diversity that inform the LINC program can lead to the assimilation and marginalization of immigrant and refugee newcomers. The disruptions that COVID-19 brought to LINC classes exacerbated these issues. Here, we explore these themes in an ethnographic study of one LINC site and suggest that the incorporation of digital technologies could offer a space for a translingual pedagogy to take root. With appropriate guidance, the adoption of a translingual pedagogy could work against the problematic discourses perpetuating within LINC and improve English learning outcomes by providing increased opportunities for digital literacy socialization.
Hybrid Modeling Techniques for Municipal Solid Waste Forecasting: An Application to OECD Countries
Authors: Chellai Fatih
Published: October 2024

Accurate forecasting of municipal solid waste (MSW) generation is critical for effective waste management, given the rising volumes of waste posing environmental and public health challenges. This study investigates the efficacy of hybrid forecasting models in predicting MSW generation trends across Organization for Economic Cooperation and Development (OECD) countries. The empirical analysis utilizes five distinct approaches – ARIMA, Theta model, neural networks, exponential smoothing state space (ETS), and TBATS models. MSW data spanning 1995–2021 for 29 OECD nations are analyzed using the hybrid models and benchmarked against individual ARIMA models. The results demonstrate superior predictive accuracy for the hybrid models across multiple error metrics, capturing complex data patterns and relationships missed by individual models. The forecasts project continued MSW generation growth in most countries but reveal nuanced country-level differences as well. The implications for waste management policies include implementing waste reduction and recycling programs, investing in infrastructure and technology, enhancing public education, implementing pricing incentives, rigorous monitoring and evaluation of practices, and multi-stakeholder collaboration. However, uncertainties related to model selection and data limitations warrant acknowledgment. Overall, this study affirms the value of hybrid forecasting models in providing robust insights to inform evidence-based waste management strategies and transition toward sustainability in the OECD region.
Fundamental representation of the amount of substance fraction of carbon dioxide in nitrogen according to the dynamic volumetric principle
Authors: Pachinger Dietmar
Published: October 2024

The new Austrian primary standard for the amount of substance fraction of carbon dioxide in nitrogen is presented. The primary standard is working according to the dynamic volumetric principle and is a fundamental representation of the measurement quantity. The direct traceability to the basic SI units is thereby thermodynamically realized without an artefact. A complete measurement uncertainty budget is calculated and verified with a bilateral inter-laboratory comparison.
Shahids and martyrs: Conflicting national narratives and places of memory in Kosovo
Authors: Reményi Péter , Baklacioğlu Nurcan Özgür , Pap Norbert
Published: October 2024

Kosovo Field (Kosovo Polje), the core region of the newly independent Kosovo, experienced several key historical events, each of which left important memories in the space. As political control over territory changed, different memories connected to the area became stronger, while others were pushed into the background. The first battle of Kosovo (1389) and the death of their ruler Lazar, is a key event in Serbian history, identified through spectacular landmarks in the region. Connected to this event, Turkish monuments also exist, commemorating the death of the martyr Sultan Murad I. Following independence, memorials of Albanian fighters started mushrooming as a core element of Kosovar identity building, with the martyrdom of the “legendary commander” Adem Jashari being central to this emblematic memory project. All three nations have an “official” martyr connected to the space, around which different nation-building narratives have been constructed. As the struggle over the control and influence of the region continues, so does the competition of different memories and memorials. Territorialisation and de-territorialisation of memories are ongoing projects in the country by the three nations, linked to competing nation-buildings and political power struggles.
Materialization of spatial identity in Slavonia and Baranja’s linguistic landscape changes
Authors: Melem Hajdarović Mihela
Published: October 2024

The linguistic landscape is an essential aspect of determining how language materializes in our surroundings. It is especially important in multilingual communities, as it reflects their identity. The linguistic landscape changes over time due to various factors, such as changes in politics, economics, and the national minority population. Study aims to explore how language manifested in the cultural landscape of Slavonia and Baranja, how it changed over time. Linguistic signs can also reflect the spatial identity of the population in the investigated periods (and its changes). Research compares the linguistic landscape of the turn of the 19th and 20th centuries with the contemporary period. We used old postcards as sources for the turn of the 19th and 20th centuries and conducted fieldwork for the modern period. The research involved analysing a vast corpus of linguistic signs in the cultural landscape. Research showed that the linguistic landscape, both in the past and present, is visible through various inscriptions on shops, craft stores, state institutions, and street names. Official inscriptions on public institutions in Croatia are written in the Croatian language, and in ethnically diverse areas, these inscriptions are bilingual, but not to the extent allowed by the Croatian Constitution. Homogeneity or heterogeneity of the linguistic landscape users determines its appearance. Croatian is the primary language in most of inscriptions. However, the status and dominance of other languages have changed, depending on the complex political and linguistic past of the region. The study has confirmed that the linguistic landscape reflects both the spatial identity as well as the heterogeneity and multilingualism of the linguistic landscape in urban and rural areas.
Assessing heatwave resilience in municipalities around Lake Balaton: A comparative analysis
Authors: Sági Tamás , Buzási Attila
Published: October 2024

Changing climate patterns represent a major challenge for Hungarian municipalities, particularly with regard to the increasing severity and frequency of heatwaves. As a result of the COVID-19 lockdowns, thousands of people moved to communities around Lake Balaton; therefore, cities and villages should place more emphasis on their long-term sustainability and climate resilience. This article addresses the literature gap in assessing the heatwave resilience of Hungarian settlements, focusing on the municipalities of the Lake Balaton Resort Area. Our main objective was to uncover spatial and temporal patterns in the 180 settlements involved in the analysis by using an indicator-based comparative method. The set of indicators included nine sensitivity and six adaptive capacity measures referring to the base years 2015 and 2022. Our results show heterogeneous spatial patterns across the analysed categories; however, several regional clusters can be identified: 1) in general, settlements from the northern part of the study area had above-average adaptive capacity, while the southern and south-western municipalities had significantly lower values, 2) only one micro-regional cluster can be defined in terms of sensitivity values in the northern part of the study area; 3) below average resilience values were found in the south-western and southern areas; 4) finally, neither sensitivity nor adaptive capacity nor overall resilience scores had changed significantly over time at the regional level. The applied methodology can easily be adopted in other Hungarian or even Central and Eastern European cities; consequently, new results can contribute to a better understanding of inter- and intra-regional patterns of heatwave resilience at the local level.
Post-pandemic pursuits: Activity preferences of rural tourists in Western Transdanubia
Authors: Darabos Ferenc , Kőmíves Csaba , Szabó Roland Z.
Published: October 2024

This study examines the changing preferences of rural tourists in Western Transdanubia, Hungary, in the wake of the COVID-19 pandemic. We aim to uncover how rural tourism has changed and identify the new winners of the shifting demand. In 2021, we conducted a comprehensive survey with 925 participants and introduced a novel activity-based segmentation of rural tourists, revealing a strong preference for complex service packages. Practically, our findings highlight that village caterers who have strategically segmented the market have emerged as winners, successfully attracting different age groups and genders with customized packages. Cluster analysis revealed a segment of rural tourists who, without exception, were enthusiastic about diverse activities. In particular, our cross-cluster analysis points to a significant amount of potential demand among middle-aged tourists. These findings help practitioners develop a targeted product mix and marketing strategy to meet the changing demands of rural tourism.
Impact of red mud on soil properties and revegetation species growth in bauxite mining land reclamation
Authors: Sulakhudin  , Herawatiningsih Ratna , Krisnohadi Ari , Abdillah Andi Massoeang , Santi  , Mudim
Published: October 2024

Bauxite mining, a key aluminum production process, can cause environmental degradation, soil erosion, and biodiversity loss. Reclamation measures like reforestation and water management can restore balance. Red mud, a by-product of alumina production, can enhance soil fertility and plant growth in post-bauxite mining reclamation areas. Its alkalinity and mineral composition reduce reliance on synthetic fertilizers, promoting sustainable soil management and addressing environmental challenges. This study aimed to examine the impact of red mud on soil characteristics and the growth of plants in areas during bauxite mining land reclamation. This study was conducted in the post-reclamation area of bauxite mining in West Kalimantan. The experiment involved two treatments: red mud application and a species of revegetation plant. Plant species consist of the plants Embeng, Forest Guana, Johar, and Rambutan. The study used a randomized block design with 24 experimental units. The parameters measured in the study included pH, organic carbon, nitrogen, phosphorus, exchangeable cations, cation exchange capacity, and base saturation, while growth parameters included a high percentage of plant growth and percentages of increased stem diameter. The findings showed that adding red mud to the planting hole increased soil pH and base saturation, improved nutrient availability, and enhanced plant growth in the areas post-mining bauxite at PT Antam, UBPB West Kalimantan. The Embeng Plant is highly regarded as a suitable plant species for re-vegetating areas after bauxite mining.
Enhancing soil quality for sustainable agricultural practices in Subak rice fields
Authors: Susila Ketut Dharma , Ginting Debby Clara Br , Adnyana I Made , Saifulloh Moh , Arthagama I Dewa Made
Published: October 2024

Understanding the soil quality of Subak rice fields in Bali is crucial for maintaining agricultural sustainability. This study aimed to explore aspects of soil quality, identify limiting factors, and offer guidance on sustainable land management. Utilizing survey methods, laboratory analysis, and soil quality determination, soil samples were selectively collected from each land unit (LU). LU selection was based on overlays of Subak zonation, soil type, slopes, rainfall, and elevation using Geographic Information System (GIS) techniques. Key soil quality indicators were assessed, including bulk density, texture, porosity, moisture content, pH, organic carbon, cation exchange capacity, base saturation, and nutrients (N, P, K). Overall, soil quality in the study area is classified as good in all LUs, but with significant variations in Soil Quality Index (SQI) values, suggesting the need for tailored management recommendations. Limiting factors include soil texture, organic carbon content, total nitrogen, available phosphorus, and biomass C. Recommended soil management practices include single plow tillage and the application of manure, urea, and SP-36 fertilizer on paddy fields. This approach aims to enhance land productivity sustainably while upholding environmental conservation and the principles of Subak, which have historically maintained a balanced and sustainable agricultural ecosystem.
Application of oil palm and cacao waste biochar to improve the chemical properties of an Ultisol of Langsa, Aceh
Authors: Saputra Iwan , Prijono Sugeng , Soemarno Soemarno , Suntari Retno
Published: October 2024

Ultisols, including those of Langsa, Aceh, are known to have low fertility due to low pH, low available nutrients, low base saturation, high pH and exchangeable Al, and low cation exchange capacity. These problems can be alleviated by applying organic amendments to the soil. One of the soil amendments is biochar. This study aimed to elucidate the potential of oil palm and cacao waste biochar for improving the chemical properties of an Ultisol of Langsa, Aceh. Biochars generated from oil palm kernel shell (PKS), oil palm empty fruit bunch (PEFB), and cacao pod husk (CPH) were applied to the soil and incubated in the laboratory for 16 weeks. At 4, 8, 12, and 16 weeks after incubation, the changes in soil chemical properties were measured. The results showed that applying different types of biochar significantly improved the chemical properties of the Ultisol of Langsa. Specifically, PEFB biochar caused significant increases in soil pH (H2O and KCl), total phosphorus, available phosphorus, organic C, and cation exchange capacity. These increases became more pronounced with longer incubation times. In addition, using PEFB biochar resulted in the lowest levels of exchangeable Al and Fe in the soil. These levels decreased further with longer incubation times. In general, PEFB biochar produced at a pyrolysis temperature of 450oC for 4 hours is the most effective biochar for improving the chemical properties of the Ultisol of Langsa.
Comparison of stability analysis methods for safe design of volcanic rock slope
Authors: Indrawan I Gde Budi , Sunardi  , Murti Ardian Baroto , Alfrianto Rifki
Published: October 2024

The performance of the stability chart (SC), limit equilibrium (LE), and finite element (FE) methods for stability analysis of weathered volcanic rock slopes under static and earthquake loads is not fully understood. This research aimed to evaluate the performance of the SC, LE, and FE methods for slope stability analyses by studying a case of a weathered volcanic rock slope at the Leuwikeris Dam diversion tunnel in Indonesia. Site characterisations were carried out to obtain the input parameters for the static and pseudostatic slope stability analyses. The results showed that using various search methods of failure surface and the suggested optimum number of finite elements, multiple non-circular failure surfaces were predicted from the LE and FE methods that were not anticipated in the initial slope design based on the SC method. The location and shape of the failure surfaces from the LE method agreed with those from the FE method. The difference between the Fs values from the static LE analysis and those from the static FE analyses was less than 14%, but the discrepancy increased up to 78% in the pseudostatic analyses. This study highlights the importance of validating the results from one method with the other methods to prevent slope failures.
Effect of water pollution by nickel on hepatic enzymes and oxidative enzymes in Cyprinus carpio (common carp)
Authors: Hammoud Haitham Ali , Aldhamin Ahmed Saad
Published: October 2024

Nickel (Ni) is considered a toxic heavy metal that causes serious diseases in humans and animals. Therefore, this study was conducted on common carp, which is considered an essential food item for humans. This study was designed to investigate the effect of nickel on the hepatic and antioxidant enzymes of Cyprinus carpio after 3 and 6 weeks of exposure to water contaminated with Ni. C. carpio fingerlings were purchased from a neighboring fish hatchery. The morphometric characteristics of the experimental fish were documented. All fish were stocked, regardless of gender. The fish were exposed to different concentrations (20, 40, 60, 80, and 100 mg/L) to obtain the LC50 for Ni during 96 hours, and the median lethal concentration of Ni was 80 mg/L through 96 hours. The fish were exposed to two safe concentrations, 1 ppm and 5 ppm. The results after 3 and 6 weeks were as follows: When compared to the control groups, all treated groups had significantly higher levels of liver function parameters (ALT and AST). Malondialdehyde (MDA) and catalase activity measurement (CAT) enzyme levels were considerably higher in all treated groups after 3 and 6 weeks as compared to control groups. These changes are trustworthy indications of the cellular and humoral immune responses in C. carpio.
Fertilizer management practices for cassava in acid dryland of Sukabumi Regency, West Java
Authors: Sutrisno  , Noerwijati Kartika , Taufiq Abdullah , Baliadi Yuliantoro , Utomo Joko Susilo , Yusnawan Eriyanto , Amanah Amri , Harnowo Didik , Sundari Titik , Koentjoro Bambang Sri
Published: October 2024

The productivity of cassava in acid dryland is generally still low. Fertilization, land amelioration, and superior varieties are the main solutions for increasing cassava productivity. This research aimed to determine the response of high-yielding varieties and fertilization technology packages to the growth and yield of cassava in acid dryland of Sukaharja Village, Warung Kiara District, Sukabumi Regency, West Java. The contents of organic carbon, nitrogen, and magnesium of the soil is below the minimum threshold, so the application of N fertilizer, organic matter, and ameliorant is expected to increase plant growth. The research consisted of two treatment factors: two cassava varieties and three fertilization technologies. The treatments were arranged in a completely randomized split-plot experimental design with three replications with variety as the main plot and fertilization technology package as the subplots. The treatment effect was observed on the character of plant height, wet biomass weight, stem diameter, number of tubers, tuber length, tuber diameter, tuber weight (large and small) per plant, and tuber yield per plot to be converted per ha. Tuber quality was observed by observing water content, percent dry matter, and starch yield. The results showed that the fertilization technology package increased plant height, fresh biomass weight, stem diameter, large tuber weight per plant, and yield per hectare in both varieties. Differences in varieties and fertilization technology packages have no effect on starch levels.
Water holding capacity, aggregation, respiration, and chemical character of acid soil amended rice straw biochar enriched with different volumes of liquid extract (sap) of Kappapychus alvarezii
Authors: Rembon Fransiscus Suramas , Kilowasid Laode Muhammad Harjoni , Afa La Ode , Rakian Tresjia Corina , Parapa Imelia , Laksana Mohammad Alfi Nanda , Sabaruddin Laode , Ansi Azhar , Ramadhan La Ode Ahmad Nur , Dahlan  , Zulfikar
Published: October 2024

The quality of acidic soil is determined by organic C content produced from rice straw biochar in agriculture. In this context, liquid extract from Kappapychus alvarezii (K-sap) is used as a biochar enrichment agent. Therefore, this research aimed to (i) analyze the character of K-sap enriched rice straw biochar with different volumes, as well as (ii) evaluate the impact on soil water holding capacity, size class distribution, aggregate stability index, respiration rate, and acidic soil chemical characters. The treatment tested was the volume of K-sap kg-1 biochar, namely (i) without biochar, (ii) 0 mL, (iii) 500 mL, (iv) 1,000 mL, and (v) 1,500 mL. Each treatment was repeated three times and placed according to a randomized block design procedure. The area covered by K-sap, pore size, and amorphous degree increased while the pore volume of the biochar surface decreased. The addition of 1,000 mL of K-sap kg-1 biochar released a new peak number associated with the aliphatic and aromatic groups. The K-sap enriched biochar increased the proportion of soil aggregate size of 1-2 mm, water holding capacity, carbon storage, pH, total N, available P and K, exchangeable base cations as well as base saturation. Meanwhile, the concentration of Al3+ and H+ were decreased in the acidic soil solution. The results showed that the performance of rice straw biochar, K-sap volumes, soil chemical quality, water holding capacity, and ability to store carbon of the acidic soil was improved by adding K-sap volume.
Fruit Freshness Detection Using Android-Based Transfer Learning MobileNetV2
Authors: Muttaqin Irfan Fajar , Arifudin Riza
Published: October 2024

Abstract. Fruit is an important part of the source of food nutrition in humans. Fruit freshness is one of the most important factors in selecting fruit that is suitable for consumption. Fruit freshness is also an important factor in determining the price of fruit in the market. So it is very necessary to detect fruit freshness which can be done by machine. Take apples, bananas, and oranges as samples. The machine learning algorithm used in this study uses MobileNetV2 with transfer learning techniques. MobileNetV2 introduces many new ideas aimed at reducing the number of parameters to make it more efficient to run on mobile devices and achieve high classification accuracy. Transfer learning is used so that data does not need training from the start, so it only takes several networks from MobileNetV2 that have previously been trained and then retrained with a different purpose to improve accuracy results. Then the models that have been created are inserted into the application using Android Studio. Software testing is done through black box testing.
Purpose: The purpose of this research is to design a machine-learning model to detect fruit freshness and then apply it to application Android smartphones.
Methods/Study design/approach: The algorithm used in this study uses MobileNetV2 with transfer learning techniques. Models that have been created are inserted into the application using Android Studio.
Result/Findings: The training results using MobileNetV2 transfer learning obtained an accuracy of 99.62% and the loss results obtained were 0.34%. The results of the application after testing using the black box testing method required improvements to the application and the machine learning model so that it can run optimally.
Novelty/Originality/Value: Machine learning models that have been created using transfer learning MobileNetV2 are applied to Android applications so that they can be used by the public.
Hyperparameter Optimization Using Hyperband in Convolutional Neural Network for Image Classification of Indonesian Snacks
Authors: Asyrofiyyah Nuril , Sugiharti Endang
Published: October 2024

Abstract. Indonesia is known for its traditional food both domestically and abroad. Several cakes are included in favorite traditional foods. Of the many types of cakes that exist, it is visually easy to recognize by humans, but computer vision requires special techniques in identifying image objects to types of cakes. Therefore, to recognize objects in the form of images of cakes as one of Indonesian specialties, a deep learning algorithm technique, namely the Convolutional Neural Network (CNN) can be used.
Purpose: This study aims to find out how the Convolutional Neural Network (CNN) works by optimizing the hyperband hyperparameter in the classification process and knowing the accuracy value when hyperband is applied to the optimal hyperparameter selection process for classifying Indonesian snack images.
Methods/Study design/approach: This study optimizes the hyperparameter Convolutional Neural Network (CNN) using Hyperband on the Indonesian cake dataset. The dataset is 1845 images of Indonesian snacks which consists of 1523 training data, 162 validation data and 160 testing data with 8 classes. In training data, the dataset is divided by 82% on training data, 9% validation, and 9% testing.
Result/Findings: The best hyperparameter value produced is 480 for the number of dense neurons 2 and 0.0001 for the learning rate. The proposed method succeeded in achieving a training value of 87.53%, for the validation process it was obtained 66.8%, the testing process was obtained 79.37%. Results obtained from model training of 50 epochs.
Novelty/Originality/Value: Previous research focused on the application and development of algorithms for the classification of Indonesian snacks. Therefore, optimizing hyperparameters in a Convolutional Neural Network (CNN) using Hyperband can be an alternative in selecting the optimal architecture and hyperparameters.
Neural Network Optimization Using Hybrid Adaptive Mutation Particle Swarm Optimization and Levenberg-Marquardt in Cases of Cardiovascular Disease
Authors: Cahyani Rima Ayu , Purwinarko Aji
Published: October 2024

Abstract. Cardiovascular disease is a condition generally characterized by the narrowing or blockage of blood vessels, which can lead to heart attacks, chest pain, or strokes. It is the leading cause of death worldwide, accounting for approximately 31% or 17.9 million deaths each year globally. Deaths caused by cardiovascular disease are projected to continue increasing until 2030, with the number of patients reaching 23.3 million. As cases of death due to cardiovascular disease become more prevalent, early detection is crucial to reduce mortality rates.
Purpose: Many previous researchers have conducted studies on predicting cardiovascular disease using neural network methods. This study extends these methods by incorporating feature selection and optimization with Hybrid AMPSO-LMA. The research is designed to explore the implementation and predictive outcomes of Hybrid AMPSO-LMA in optimizing MLP for cases of cardiovascular disease.
Methods/Study design/approach: The first step in conducting this research is to download the Heart Disease Dataset from Kaggle.com. The dataset is processed through preprocessing by removing duplicates and transforming the data. Then, data mining processes are carried out using the MLP algorithm optimized with Hybrid AMPSO-LMA to obtain results and conclusions. This system is designed using the Python programming language and utilizes Flask for website access in HTML.
Result/Findings: The research results demonstrate that the method employed by the author successfully improves the accuracy of predicting cardiovascular disease. Predicting cardiovascular disease using the MLP algorithm yields an accuracy of 86.1%, and after optimization with Hybrid AMPSO-LMA, the accuracy increases to 86.88%.
Novelty/Originality/Value: This effort will contribute to the development of a more reliable and effective cardiovascular disease prediction system, with the goal of early identification of individuals exhibiting symptoms of cardiovascular disease.