bluuebunny/crossref_metadata_2025 huggingface dataset:
The effects of MIND diet on depression, anxiety, quality of life and metabolic and hormonal status in obese or overweight women with polycystic ovary syndrome: a randomised clinical trial
Authors: Kabiri Seyedeh Sarina , Javanbakht Zahra , Zangeneh Maryam , Moludi Jalal , Saber Amir , Salimi Yahya , Tandorost Arash , Jamalpour Mahsa
Published: October 2024

Polycystic ovary syndrome (PCOS) is a common hormonal disorder in women of reproductive age, associated with increased risks of metabolic disorders, depression and reduced quality of life. This study examined the impact of the Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet on mental health, PCOS-related quality of life (PCOSQ), anthropometric indices, hirsutism, and metabolic/hormonal parameters in women with PCOS. Total of 52 women with PCOS, aged between 18 and 45 years, were randomly assigned to either the low calorie MIND diet group or the control group. Anthropometric data, depression and anxiety scores, serum levels of gonadotropins (luteinizing hormone [LH], follicle-stimulating hormone [FSH]), PCOSQ, and Ferriman-Gallwey score were evaluated before and after the intervention. Outcomes were assessed at baseline and at the end of the 8-week follow-up period. After 8 weeks, the MIND diet significantly reduced depression (β –3·03; 95 % CI: [–5·36, –0·70]; P = 0·011) and anxiety (β –3·54; 95 % CI: [–6·60, –0·49]; P = 0·024) scores compared with the control group. The MIND diet group exhibited significant increases in the emotion (β 0·63; 95 % CI: [0·18, 1·08]; P = 0·007) and body hair (β 0·65; 95 % CI: [0·03, 1·28]; P = 0·04) domains of the PCOSQ compared to the control group. The changes in other parameters did not show significant differences between the two groups. Both the MIND diet and control groups showed improvements in weight and BMI, with a slight advantage for the MIND diet group. These findings suggest that the MIND diet may be beneficial for improving mental health and some aspects of PCOSQ in women with PCOS.
Onset of cognitive impairment, diet quality and adherence to dietary guidelines over 12 years: the Personality and Total Health Cohort Study
Authors: O’Reilly Sharleen , Gouldson Anna , Wirth Janine , Cherbuin Nicolas , Eramudugolla Ranmalee , Anstey Karin J.
Published: October 2024

Around 55 million people worldwide live with dementia, and more are expected due to population ageing. We aimed to investigate associations between healthy diet and mild cognitive impairment and dementia in 1753 older adults aged 60–64 from the PATH (Personality and Total Health Through Life Cohort) study. Healthy diet was defined by the Mediterranean-DASH diet Intervention for Neurological Delay (MIND) and two dietary guideline quality scores (Dietary Guideline Index (DGI) and Index Diet Quality (IDQ)), which were calculated from baseline FFQ. Higher dietary scores indicated higher diet quality. Incidence of Alzheimer’s disease/vascular dementia (National Institute of Neurological Disorders criteria) and mild cognitive impairment (Winbald criteria) was assessed after 12 years of follow-up using validated questionnaires with nominated proxies. Logistic regression explored associations between dietary scores and cognitive function, adjusting for demographics, lifestyle factors and medical preconditions. Adjusted logistic regression comparing the per unit linear increase in diet scores showed MIND (OR = 0·82, 95 % CI = 0·68, 0·99), but not DGI (0·99 (0·97, 1·00)) or IDQ (1·12 (0·95, 1·32)), was significantly associated with lower odds of developing cognitive impairment. In conclusion, a healthier neuroprotective dietary pattern is associated with better cognitive function over time, whereas dietary patterns generated from general dietary guidelines did not show a significant association. Further research and well-designed clinical studies are needed to determine the effects of the MIND diet on cognitive impairment in older adults without a family history of dementia.
Evidence of circulating recombinants between deformed wing virus and Varroa destructor virus-1 in honey bee colonies in Türkiye
Authors: Şevik Murat , Zerek Aykut , Erdem İpek , Yaman Mehmet
Published: October 2024

Deformed wing virus (DWV), which is an important honey bee virus transmitted by Varroa destructor (V. destructor), causes colony losses in honey bee colonies. This study aimed to investigate the prevalence and genetic diversity of DWV in honey bees in Türkiye and to determine the role of V. destructor in the transmission of the genetic variants of DWV. Honey bee samples were collected from 62 apiaries, by simple random sampling, during March 2022 and April 2023. The presence of V. destructor in collected bee samples was examined using a stereo microscope. Real-time RT-PCR was used for the detection of DWV-A and DWV-B (Varroa destructor virus-1 (VDV-1)) viruses. Genetic characterisation of the positive samples was conducted by sequencing polyprotein genomic region. Considering the V. destructor infestation rate of 3% as relevant, out of the 62 apiaries examined, 17 (27.4%) were positive. However, DWV-A and VDV-1 specific RNA was not detected in V. destructor samples. VDV-1 specific RNA was detected in 6.5% (4/62) of the apiaries, whereas DWV-A was not detected in the sampled apiaries. Phylogenetic analysis showed that isolates detected in this study were located in a separate cluster from previously characterised DWV-A and VDV-1 isolates. According to RDP4 and GARD analyses, DWV-VDV-1 recombination breakpoints were detected in field isolates. To the best our knowledge, this is the first report of the presence of VDV-1-DWV recombinants in Türkiye. Further studies are needed to determine the impact of VDV-1-DWV recombinants and their virological and antigenic properties.
New species of the genus Alippistrongylus (Nematoda: Trichostrongylina) parasitic in Delomys dorsalis (Rodentia: Sigmodontinae) in the Atlantic Forest of Rio de Janeiro, Brazil
Authors: Sá Lemes D. , de Andrade Silva B.E. , Maldonado A. , Vilela R.V. , Luque J.L. , de Oliveira Simões R.
Published: October 2024

We describe a new species of the genus Alippistrongylus (Nematoda: Trichostrongylina) in the small intestine of Delomys dorsalis (Rodentia: Sigmodontinae) found in Itatiaia National Park (Parque Nacional do Itatiaia, PNI), state of Rio de Janeiro, Brazil. The new species can be distinguished between the other two species previously described by the following morphological characteristics: pattern of the rays from the caudal bursa rays in males and the spherical-shaped appendage in the female. Additionally, we provide molecular genetic data from the new species. The discovery of Alippistrongylus itatiaiaensis sp. n. expands our understanding of nematode diversity and underscores the importance of parasite studies in biodiversity conservation. Its occurrence in a preserved area like the PNI emphasises the role of such habitats in maintaining unique ecological interactions.
Linalyl acetate against larvae of Haemonchus spp. and Trichostrongylus spp. that affects ruminants: considerations about the hormetic effect
Authors: Garbin V.P. , Yoshitani U.Y. , Molento M.B.
Published: October 2024

Active components from plants are an alternative therapy to parasite control, addressing the widespread multidrug resistance populations. Linalyl acetate (LA), an ester abundantly found in plants of the genus Lavandula, was tested in vitro against third-stage larvae (L3) of Haemonchus spp. and Trichostrongylus spp. using the larval migration test at 0.89, 2.24, 4.47, 8.95, 17.9, 35.8, 71.6, and 143.2 mg/ml. After an initial incubation of 18 h, the total content of each tube was transferred to a 24-well plate that allowed active L3 to migrate through a nylon mesh (second incubation). Although LA exhibited 100% efficacy in reducing larval migration at 8.95 and 17.9 mg/ml, it showed reduced activity (5%) at 143.2 mg/ml. The data revealed a hormetic biphasic response characterised by an inverted U-shaped concentration-response curve. While hormesis has been previously documented in insecticidal and allelopathic contexts, this study reports the occurrence of hormesis induced by a phytochemical component against two species of nematodes for the first time. This distinctive stimulation-and-inhibition effect should be considered when selecting new compounds for preclinical testing.
A multi-trait embodied framework for the evolution of brains and cognition across animal phyla
Authors: Coombs Sheryl , Trestman Michael
Published: October 2024

Among non-human animals, crows, octopuses and honeybees are well-known for their complex brains and cognitive abilities. Widening the lens from the idiosyncratic abilities of exemplars like these to those of animals across the phylogenetic spectrum begins to reveal the ancient evolutionary process by which complex brains and cognition first arose in different lineages. The distribution of 35 phenotypic traits in 17 metazoan lineages reveals that brain and cognitive complexity in only three lineages (vertebrates, cephalopod mollusks, and euarthropods) can be attributed to the pivotal role played by body, sensory, brain and motor traits in active visual sensing and visuomotor skills. Together, these pivotal traits enabled animals to transition from largely reactive to more proactive behaviors, and from slow and two-dimensional motion to more rapid and complex three-dimensional motion. Among pivotal traits, high-resolution eyes and laminated visual regions of the brain stand out because they increased the processing demands on and the computational power of the brain by several orders of magnitude. The independent acquisition of pivotal traits in cognitively complex (CC) lineages can be explained as the completion of several multi-trait transitions over the course of evolutionary history, each resulting in an increasing level of complexity that arises from a distinct combination of traits. Whereas combined pivotal traits represent the highest level of complexity in CC lineages, combined traits at lower levels characterize many non-CC lineages, suggesting that certain body, sensory and brain traits may have been linked (the trait-linkage hypothesis) during the evolution of both CC and non-CC lineages.
An analytical study of Euler angle and Rodrigues parameter representations of
$\mathbb{SO}(3)$
towards describing subsets of
${\mathbb{SO}}(3)$
geometrically and establishing the relations between these
Authors: Patra Bibekananda , Bandyopadhyay Sandipan
Published: October 2024

Descriptions of various subsets of

$\mathbb{SO}(3)$

are encountered frequently in robotics, for example, in the context of specifying the orientation workspaces of manipulators. Often, the Cartesian concept of a cuboid is extended into the domain of Euler angles, notwithstanding the fact that the physical implications of this practice are not documented. Motivated by this lacuna in the existing literature, this article focuses on studying sets of rotations described by such cuboids by mapping them to the space of Rodrigues parameters, where a physically meaningful measure of distance from the origin is available and the spherical geometry is intrinsically pertinent. It is established that the planar faces of the said cuboid transform into hyperboloids of one sheet and hence, the cuboid itself maps into a solid of complicated non-convex shape. To quantify the extents of these solids, the largest spheres contained within them are computed analytically. It is expected that this study would help in the process of design and path planning of spatial robots, especially those of parallel architecture, due to a better and quantitative understanding of their orientation workspaces.
Rethinking Animal Consciousness Research to Prioritize Well-Being
Authors: Baker Liv , King Barbara J. , Lynn William S.
Published: October 2024

The authors critique the NY Declaration on Animal Consciousness, which does not denounce continued captivity and invasive research in the pursuit of animal consciousness markers. They argue that such research often increases animal suffering by accepting harmful practices. Instead, they propose a nonanthropocentric, ethical framework aligned with the Belmont Report’s principle of beneficence, advocating for noninvasive methods in natural habitats. This approach prioritizes animal well-being, recognizing and safeguarding the intrinsic value of all conscious beings.
Chorionicity and Psychomotor Development From Infancy to Childhood: The Japan Environment and Children’s Study
Authors: Silventoinen Karri , Honda Chika , Tomizawa Rie , Sakai Norio , Ikehara Satoyo , Miyazaki Junji , Tanigawa Kanami , Kimura Takashi , Kawasaki Ryo , Iso Hiroyasu ,   Japan Environment and Children’s Study Group
Published: October 2024

Twins lag behind singletons in their early psychomotor development, but little is known about how chorionicity affects this difference. We compared early psychomotor development in singletons, monochorionic (MC) twins and dichorionic (DC) twins. Our longitudinal data from the Japan Environment and Children’s Study (JECS; see Appendix) included 98,042 singletons, 577 MC twins and 1051 DC twins representing the general Japanese population. Chorionicity was evaluated by ultrasound images and complemented by postnatal pathological examinations. Five domains of psychomotor development were evaluated at 6 time points from 6 months to 3 years of age using the Ages and Stages Questionnaires (ASQ-3). The data were analyzed using linear regression models. Twins lagged behind singletons in all areas of psychomotor development during infancy. This gap decreased over time but was still noticeable at 3 years of age. More than half of this difference was attributed to twins having lower birth weight and being born earlier in gestation. MC twins showed slightly delayed development compared to DC twins, but this difference was minor compared to the overall gap between twins and singletons. Twins delay singletons in their early psychomotor development, and this delay is not specific to MC twinning.
Home blood pressure control and prescribing patterns of anti-hypertensive medications in a home blood pressure-based hypertension-specialized clinic in Japan: a sub-analysis of the Ohasama study
Authors: Satoh Michihiro , Metoki Hirohito , Murakami Takahisa , Tatsumi Yukako , Asayama Kei , Kikuya Masahiro , Ohkubo Takayoshi , Imai Yutaka
Published: October 2024

Although the benefits of anti-hypertensive treatment are well known, the proportion of hypertensive patients with controlled blood pressure (BP) remains suboptimal. The present study aimed to compare BP control conditions in a hypertension-specialized clinic and non-hypertension-specialized clinics. This cross-sectional study used data from 379 treated patients who measured home BP in the Ohasama study between 2016 and 2019 (men: 43.0%, age: 71.6 years). Of those, 172 patients were managed at the hypertension-specialized clinic where physicians distributed home BP devices to each patient, evaluated the home BP data, and adjusted medications to maintain home BP values according to the recent Japanese guidelines. When we set morning home systolic/diastolic BP of <135/ < 85 mmHg as controlled BP, 93.6% of patients fulfilled the controlled home BP range, compared to 43.0% in non-specialized clinics (n = 207). The proportion of the patients with home morning BP < 125/ < 75 mmHg was 73.3% in the hypertension-specialized clinic and 20.8% in the non-hypertension-specialized clinics. Hypertension-specialized clinics prescribed three or more anti-hypertensive drug classes to 41.9% of patients, compared to 15.2% in non-specialized clinics. In the hypertension-specialized clinic, angiotensin II receptor blockers were most commonly prescribed (86.6%), followed by dihydropyridine calcium channel blockers (77.9%), thiazide (including thiazide-like) diuretics (30.2%), mineralocorticoid receptor blockers (23.8%), and beta- and alpha-beta blockers (10.5%). In conclusion, the proportion of patients with controlled home BP was excellent in the hypertension-specialized clinic. Home BP-based hypertension practices, as recommended in the current Japanese guidelines, may be the key to achieving sufficient BP control.
Evaluation of anti-biofilm and anti-virulence effect of zinc sulfate on Staphylococcus aureus isolates
Authors: Abdelraheem Wedad M. , Kamel Heba S. , Gamil Aya Nabil
Published: October 2024

Staphylococcus aureus produces a plethora of virulence factors to invade and establish infections in the host system, and biofilms are more resistant to antibiotics than planktonic cells. In this study, we aimed to investigate the anti-virulence and anti-biofilm potentials of zinc sulfate against S. aureus isolates. The synergistic effect of zinc sulfate in combination with antibiotics on S. aureus was characterized using the checkerboard method. The influence of zinc sulfate on biofilm formation and virulence factors production by S. aureus was experimentally assessed. RT-qPCR was used to investigate the effect of zinc sulfate on the expression of biofilm-related genes. Zinc sulfate exhibited good antibacterial activity against S. aureus with a MIC of 128 µg/ml against all tested isolates. Also, the findings indicate a synergistic effect of a combination of zinc sulfate and antibiotics against the tested isolates. Zinc sulfate at 256 µg/ml concentration inhibited biofilm formation for all isolates. The expression of biofilm-related genes was significantly repressed in zinc sulfate-treated bacteria compared to untreated cells. Zinc sulfate could inhibit the hemolytic ability of S. aureus. Moreover, zinc sulfate-treated bacteria exhibited a significant decrease in coagulase and catalase activity relative to control untreated S. aureus. Our results support that zinc sulfate is a potential antimicrobial and anti-virulence agent against S. aureus infections.
A novel hybrid method with convergence analysis for approximation of HTLV-I dynamics model
Authors: Molavi-Arabshahi Mahboubeh , Rashidinia Jalil , Yousefi Mahnaz
Published: October 2024

This paper presents a novel numerical approach for approximating the solution of the model describing the infection of $$CD4^+T$$

C
D

4
+

T

-cells by the human T-cell lymphotropic virus I (HTLV-I).The proposed method utilizes the operational matrix along with spectral method to convert the fractional model into a system of nonlinear algebraic equations. The Levenberg-Marquardt algorithm efficiently solves these equations. The study includes theoretical convergence analysis and error bounds to establish the validity of the proposed method. Through several test problems, we demonstrate the effectiveness and accuracy of the approach. We compare its performance and reliability to other existing methods in the literature. The results indicate that the proposed method is a reliable and efficient approach for solving the model.
Acute hyperlipidemia has transient effects on large-scale bone regeneration in male mice
Authors: Yamamoto de Almeida Luciana , Dietrich Catharine , Duverger Olivier , Lee Janice S.
Published: October 2024

Excessive dietary fat intake increases plasma lipid levels and has been associated with reduced bone mineral density (BMD) and increased risk of osteoporotic fracture, especially in older postmenopausal women. The objective of this study was to investigate whether there are sex-related differences in lipid metabolism that could have an impact on large-scale bone regeneration. Because ribs provide a unique exception as the only bones capable of completely regenerating large-scale defects, we used a rib resection mouse model in which human features are recapitulated. After 10 days of exposure to a low-fat diet or high-fat diet (HFD), we performed large-scale rib resection surgeries on male and female mice (6–7 weeks old) with deletion of the low-density lipoprotein (LDL) receptor (Ldlr−/−) and age- and sex-matched wild-type (WT) mice were used as controls. Plasma analysis showed that short-term exposure to HFD significantly increases total cholesterol, LDL cholesterol, and triglycerides levels in Ldlr−/− mice but not in WT, with no differences between males and females. However, under HFD, callus bone volume was significantly reduced exclusively in male Ldlr−/− mice when compared to WT, although these differences were no longer apparent by 21 days after resection. Regardless of diet or genotype, BMD of regenerated ribs did not differ significantly between groups, although male mice typically had lower average BMD values. Together, these results suggest that short-term hyperlipidemia has transient effects on large-scale bone regeneration exclusively in male mice.
Lack of incremental prognostic value of triglyceride glucose index beyond coronary computed tomography angiography features for major events
Authors: Huang Zengfa , Tang Ruiyao , Ding Yi , Wang Xi , Du Xinyu , Wang Wanpeng , Li Zuoqin , Xiao Jianwei , Wang Xiang
Published: October 2024

This study was aim to determine the prognostic value of triglyceride-glucose (TyG) index and coronary computed tomography angiography (CTA) features for major adverse cardiovascular events (MACE). In addition, we investigate the incremental prognostic value of TyG index beyond coronary CTA features in patients with suspected or known coronary artery disease (CAD). The present study ultimately includes 3528 patients who met the enrollment criteria. The TyG index was calculated based on measured levels of triglycerides and fasting blood glucose. Primary combined endpoint consisted of MACE, which defined as myocardial infraction (MI), all-cause mortality and stroke. Three multivariate Cox proportional hazard regression models were performed to assess the association between TyG index and MACE. C-statistic was performed to assess the discriminatory value of models. 212 (6.0%) patients developed MACE during a median follow-up of 50.4 months (IQR, 39.4–55.1). TyG index remained to be a significantly and independent risk factors for predicting MACE after adjusting by different models (clinical variables alone or plus coronary CTA features) in multivariable analysis. Both the addition of TyG index to clinical model plus Coronary Artery Disease Reporting and Data System (CAD-RADS) and to clinical model plus CAD-RADS 2.0 slightly but not significantly increased the C-statistic index (0.725 vs. 0.721, p = 0.223; 0.733 vs. 0.731, p = 0.505). TyG index was associated with an increased risk of MACE. However, no incremental prognostic benefit of TyG index over CAD-RADS or CAD-RADS 2.0 was detected for MACE in patients with suspected or known CAD.
Sublingual microcirculatory assessment on admission independently predicts the outcome of old intensive care patients suffering from shock
Authors: Bruno Raphael Romano , Schemmelmann Mara , Hornemann Johanna , Moecke Helene Mathilde Emilie , Demirtas Filiz , Palici Lina , Marinova Radost , Kanschik Dominika , Binnebößel Stephan , Spomer Armin , Guidet Bertrand , Leaver Susannah , Flaatten Hans , Szczeklik Wojciech , Mikiewicz Maciej , De Lange Dylan W. , Quenard Stanislas , Beil Michael , Kelm Malte , Jung Christian
Published: October 2024

Shock is a life-threatening condition. This study evaluated if sublingual microcirculatory perfusion on admission is associated with 30-day mortality in older intensive care unit (ICU) shock patients. This trial prospectively recruited ICU patients (≥ 80 years old) with arterial lactate above 2 mmol/L, requiring vasopressors despite adequate fluid resuscitation, regardless of shock cause. All patients received sequential sublingual measurements on ICU admission (± 4 h) and 24 (± 4) hours later. The primary endpoint was 30-day mortality. From September 4th, 2022, to May 30th, 2023, 271 patients were screened, and 44 included. Patients were categorized based on the median percentage of perfused small vessels (sPPV) into those with impaired and sustained microcirculation. 71% of videos were of good or acceptable quality without safety issues. Patients with impaired microcirculation had significantly shorter ICU and hospital stays (p = 0.015 and p = 0.019) and higher 30-day mortality (90.0% vs. 62.5%, p = 0.036). Cox regression confirmed the independent association of impaired microcirculation with 30-day mortality (adjusted hazard ratio 3.245 (95% CI 1.178 to 8.943, p = 0.023). Measuring sublingual microcirculation in critically ill older patients with shock on ICU admission is safe, feasible, and provides independent prognostic information about outcomes.

Trial registration NCT04169204.
Early differences in lassitude predicts outcomes in Stanford Neuromodulation Therapy for difficult to treat depression
Authors: Benrimoh David , Azeez Azeezat , Batail Jean-Marie , Xiao Xiaoqian , Buchanan Derrick , Bandeira Igor D. , Geoly Andrew , Keynan Yaakov , Kratter Ian H. , Williams Nolan R.
Published: October 2024

Stanford Neuromodulation Therapy (SNT), has recently shown rapid efficacy in difficult to treat (DTT) depression. We conducted an exploratory analysis of individual symptom improvements during treatment, correlated with fMRI, to investigate this rapid improvement in 23 DTT participants from an SNT RCT (12 active, 11 sham). Montgomery–Åsberg Depression Rating Scale item 7 (Lassitude) was the earliest to show improvements between active and sham, as early as treatment day 2. Lassitude score at treatment day 3 was predictive of response at 4 weeks post-treatment and response immediately after treatment. Participants with lower lassitude scores at treatment day 3 had different patterns of sgACC functional connectivity compared to participants with higher scores in both baseline and post-treatment minus baseline analyses. Further work will aim to first replicate these preliminary findings, and then to extend these findings and examine how SNT may affect lassitude and behavioral activation early in treatment.
Corrigendum to: The Ongoing Battle: Understanding the Population Trends of Green Turtles in Peninsular Malaysia
Authors: Mohd-Ridwan Abd Rahman , Ramli Nor Ika Shahirah , Hassan Ruhana , Joseph Juanita , Rahim Nur Fazliana , Rusli Mohd Uzair
Published: October 2024

The first author’s name must be replaced by Abd Rahman Mohd-Ridwan.

In the affiliation number five, the name of the University must be replaced by Terengganu instead of Terungganu.
Developing The Brand of Batam City as A Sustainable (Green) Tourism Destination through Social Media
Authors: Taufiqqurrachman Taufiqqurrachman , Ella Afnira Jamhur Poti , Sophia Uly
Published: October 2024

Various studies have scientifically documented sustainable tourism development in several developing countries. Meanwhile, when social media influences tourist perceptions and their visiting decisions, tourism promoters have widely used social media to form their destination brands by producing promotional materials and distributing them on social media. However, there needs to be more scientific research reporting on the formation of city brands as green destinations through social media. This article collected visual content produced and uploaded by local tourism authorities. Furthermore, Barthes's and Rose’s semiotics were applied to analyze the content to identify the formation of Batam city brands as one of the green destinations in Indonesia. The findings of the article’s research indicated that several themes (marine tourism, agro-and ecotourism, community-based tourism, and sport tourism) are exploited by local tourism authorities to form green destination brands for Batam City. Various signs implying metonymic and synecdochical signs were distributed to highlight the themes, such as beaches, plantation areas, grasslands, and mangrove forests. Based on the study’s findings, various theoretical and practical implications were discussed, and recommendations for future research were suggested.
Analysis Of Tpack Ability Of Biology Teachers’ Learning Media In High School Coastal Area Of Bintan District As A Form Of Support Towards Sdgs In The Field Of Education
Authors: Nevrita Nevrita , Oprasmani Elfa , Sumarni Een
Published: October 2024

This study aims to examine in depth and analyze the level of Technological Pedagogical Content Knowledge (TPACK) ability of biology teachers in Senior High Schools (SMA) in the coastal areas of Bintan Regency in designing, developing, and using learning media. Through quantitative analysis using the TPACK questionnaire instrument, this study attempts to obtain an accurate picture of the profile of TPACK ability of teachers in the area, so that it can be a basis for efforts to improve the quality of the learning media produced. The results of the study showed that the average TPACK ability of biology teachers in senior high schools in the coastal areas of Bintan Regency was in the good category, which was 80.34%, which had positive implications for achieving the Sustainable Development Goals (SDGs) in the field of Education.
Prediction of Resistance and Power Requirements for a 72-Meter Landing Craft Tank (LCT) Vessel
Authors: Putra Risandi Dwirama , Verandi Alde Vio , Nst Islam Uzhri H.A. , Prayetno Eko , Nugraha Sapta , Kurniawan Hendra , Kader Abd Saman bin Abd , Ghani Fauza Rikzal
Published: October 2024

This study aims to predict the resistance and power requirements of the 72-meter Landing Craft Tank (LCT) Montana using the empirical Holtrop method. The Holtrop method is widely used for estimating ship resistance in calm water conditions and has proven to be effective in providing accurate predictions. The findings of the study indicate that the total resistance (RT) of the 72-meter LCT at a maximum service speed of 12.6 knots is 344.6 kN. The corresponding power requirement is calculated to be 2977.971 kW, which is approximately 3993.524 horsepower (HP). To meet this power demand, the selected main engine is the YANMAR 6EY26W, which is rated at 2 x 1620 kW. These results offer valuable insights for the design and development of the 72-meter LCT, particularly in terms of optimizing operational efficiency and ensuring appropriate engine selection. By understanding the resistance and power needs, shipbuilders can enhance the vessel’s performance and fuel efficiency. Additionally, the findings can serve as a reference for improving future designs of similar vessels, thereby contributing to more efficient maritime operations. This research highlights the importance of accurate predictions in the ship design process, helping to ensure that performance expectations are met while also contributing to cost-effective and energy-efficient solutions in naval architecture.
IoT-Enabled Real-Time Monitoring System for Electricity Consumption in Maritime SMEs: Design and Evaluation
Authors: Nugraha Sapta , Siagian Rohani Br. , Suhendra Tonny , Dwirama Putra Risandi , Salvador Eléa , Chenu Nicolas , Kurniawan Hendra
Published: October 2024

The growing demand for electrical energy in Small and Medium Enterprises (SMEs) within the maritime sector, necessitates efficient and cost-effective monitoring systems. This paper presents the design and implementation of an Internet of Things (IoT)-based real-time monitoring system for electricity consumption, specifically aimed at maritime SMEs. Using SCT-013-000 and ZMPT101B sensors for current and voltage measurements, the system enables remote monitoring through the Cayenne IoT platform. Experimental results demonstrate an average accuracy rate of 93.94% for current measurement and 98.50% for voltage measurement. Data transmission success rates were 74.00% and 99.02% in two consecutive tests. The proposed system provides an affordable and practical solution for maritime SMEs, contributing to improved energy management, reduced operational costs, and the promotion of sustainable practices. Future work includes the integration of predictive analytics and smart grid technology to further enhance energy efficiency and sustainability in maritime operations.
Efficiency of Sea Pandan Leaves (Pandanus tectorius) in the Biosorption of Mercury (Hg) in Coastal Areas
Authors: Fitri Annisa , Yulita Inelda , Pardi Hilfi , Oka Hideki
Published: October 2024

Mercury (Hg) heavy metal pollution is one of the serious problems that can threaten human health and ecosystems. In an effort to reduce mercury contamination, this research uses sea pandanus leaves (pandanus tectorius) as a natural biosorbent. The purpose of this study is to determine the contact time and adsorbing concentration capacity of sea pandanus leaves to mercury ions. One of the steps to reduce mercury contamination is by biosorption. The data obtained were analyzed using J.S.A.P software to determine the real difference test on contact time and adsorption concentration. The results of this study indicate that sea pandanus has a mercury adsorption capacity determined by the optimum contact time in the ratio of 1:100, the best optimum contact time is 60 minutes with an adsorption concentration of 100 ppm by achieving an adsorption of 0.372 mg/g using a mesh size of 120, Comparison of 1:75, the best optimum contact time is 30 minutes with an adsorption concentration of 0.907 mg/g using a mesh size of 120. Sea pandan leaves are proven as a potential biosorbent to remove mercury ions with the application of sea pandan leaves with seawater, which is 95% able to absorb heavy metals in polluted seawater.
Fourteen Years of Research on Smart City and Community: A Bibliometric Analysis
Authors: Yudiatmaja Wayu Eko , Silitonga Theresia , Sholeh Chaereyranba , Firman Firman , Samnuzulsari Tri , Akbar Dhani , Yoserizal Yoserizal , Malek Jalaluddin Abdul
Published: October 2024

Smart cities have become prominent in various disciplines in the last decade. Few scholars have reviewed the current research related to smart cities. Unfortunately, limited studies have examined the smart city and community issues using bibliometrics. Therefore, this paper aims to fill the gap in the current research by systematically reviewing the paper on smart city and community research. This research was conducted by performing a bibliometric approach. The data were traced from the Web of Science Clarivate Analytics database and analysed using the R-package, Hiscite, and VOSviewer. The results of this analysis are descriptively summarised in the number of articles, citations, and the most influential author and journal. Regarding topics, we revealed six growing clusters of research covering 174 sub-topics. This study contributes to the growing body of smart cities by reviewing the current literature on the issue and providing future research directions.
Emerging Community-Based Blue Economy Industry Sectors in Bintan: Examples From Kampong Teripang
Authors: R Wahyu Hidayat. , Pratiwi Mirza Ayunda , Adeh Rose
Published: October 2024

This study examines the emergence of community-based blue economy industry sectors in Bintan, Indonesia, focusing on Kampong Teripang as a case study. Using a qualitative approach involving interviews, observations, and a literature review, this research explores the ways in which Kampong Teripang has empowered local communities. The findings reveal that Kampong Teripang has successfully mobilized local residents as sea cucumber collectors and workers within the village, while also implementing sea cucumber aquaculture. The establishment of Kampong Teripang in Bintan has not only generated significant economic value for entrepreneurs but has also contributed to improving the livelihoods of the surrounding community. This research highlights the potential of community-based initiatives to drive sustainable economic growth and social development in coastal areas.
Blue Economy as a Drive Economy, Welfare and Environment Sustainable in Malang Rapat Village Bintan District Meeting Riau Islands
Authors: Risnawati Risnawati , Sidabutar Yuanita FD
Published: October 2024

Malang Rapat Village, located in Bintan Regency, Riau Islands, is rich in marine resources and holds significant potential for the development of a blue economy. With its extensive coastline and diverse marine ecosystems, the village offers opportunities for fisheries, sustainable marine tourism, and the creation of products derived from marine resources. These opportunities could contribute to boosting local income and generating employment in the community. However, challenges arise from unregulated fishing practices that threaten marine ecosystems, rising sea levels, and shifting weather patterns that jeopardize coastal areas and maritime infrastructure. Additionally, limited human resources in the marine sector and inadequate infrastructure hinder the growth of this industry. Despite these obstacles, the blue economy presents an avenue for environmental sustainability and marine tourism development. By embracing the blue economy, Malang Rapat Village has the potential to enhance its local economy. This research utilizes a descriptive qualitative approach and SWOT analysis to explore the role of marine resources, sustainable fisheries, marine tourism, and human capital in increasing community income and supporting the blue economy initiative as a driver of sustainable development, welfare, and environmental stewardship in Malang Rapat Village, Bintan Regency.
Archipelagic Approach in the Formulation of the Draft Law on the Islands Region
Authors: Sucipta Pery Rehendra , Jaafar Edi
Published: October 2024

Indonesia is a unitary state with archipelagic characteristics. As an archipelagic state, the ocean is the dominant factor, with an estimated ¾ of Indonesia’s territory (5.8 million km2) being ocean and a quarter (1.9 million km2) land, with enormous potential for coastal and marine resources. With an area as large as Indonesia cannot but adopt a decentralization system in governance to accelerate the community’s welfare. This research uses normative legal research and socio-legal research. The policy of marine decentralization through territorial decentralization gains legality through Article 18 of the Indonesian Constitution, which is derived from Law of number 22/1999, Law of Number 32/2004, and Law of number 23/2014. Decentralization of marine management must refer to the 1982 Convention on the Law of the Sea (UNCLOS), a requirement of the rule of law. Therefore, it is necessary to synchronize Article 25A (Archipelago State) and Article 18 (1) (decentralization). Legal synchronization of Article 25A of the Constitution as an affirmation of the applicability of the 1982 UNCLOS, which is a product of international law ratified by Law of Number 17/1985.
Reconfiguration of Coastal Settlement Policy in Blue Economy Paradigm: Discources and Practices in Bintan Island, Indonesia
Authors: Safitri Dian Prima , Hendrayady Agus , Sholeh Chaerey Ranba , Setiawan Ramadhani , Yudiatmaja Wayu Eko , Kurnianingsih Fitri , Noeridha Neelam , Ayunatasya Ayunatasya
Published: October 2024

The blue economy paradigm promotes sustainable economic growth by linking social equality, poverty reduction and marine conservation. Bintan Island, a designated Special Economic Zone (SEZ), has faced a challenge in accommodating economic growth and social equality for indigenous people living in coastal settlements. Providing settlement permits and recognition of property rights must consider the sustainability of coastal areas and spatial allocations along the coast of Bintan Island. Policy changes and policy networks in implementing coastal settlement policy become the theoretical framework in this study. Drawing on discourse analysis, key-informant interviews across scales, and secondary data in the regulations, we examine the meanings and practices of the reconfiguration of Coastal Settlement Policy in Blue Economy Paradigm. Policy networks perform in implementing coastal settlement policy to provide legalisation of assets as a form of social equity in the blue economy paradigm. The initiative of the regional head also followed the establishment of Bintan as an SEZ by strengthening the coastal settlement certification programme. However, within the framework of the policy network, the intergovernmental relationship that works in this policy needs strengthening from other networks.
Microhydro Riam Transition as A Form of Green Energy in Batu Kacang Village, Dabo District, Lingga District Indonesia
Authors: Mujahidin Muhamad , Suhendra Tonny , Rusfa Rusfa
Published: October 2024

The electrical energy crisis is a problem faced by the Batu Kacang Village Community, related to the high demand for energy distribution, The limited access to electricity for the people of Batu Kacang Village means that public facilities in the form of lighting have not been fully accommodated, The scope of the program is limited, this research does not reach far into the operational development, maintenance and further development stages of an innovative green energy system, Optimization of the green energy transition in this research will be measured by three indicators, namely, activity, productivity and sustainability, The method used is capacity building, observation of component performance and systematic recording of measuring data, experimental research methods referring to references related to Microhydro Power Plants, The results show, the initial voltage is 12 volts with a current of 0.34 amperes, at the 4th to the 8th hour the current in the battery remains stable, namely 0.32 amperes and there is a decrease in the current at the 9th hour with a current of 0.27 amperes. or a decrease in current of 0.05 amperes. In the following hours the battery current decreased continuously from 0.26 amperes to 0.13 amperes or a decrease of 0.13 amperes, from 0.13 decreased to 0.09 and decreased again to 0.05 in the 12th hour or decreased by 0.04 amperes. The final voltage on the battery is 8.0 volts or 66% of the battery’s full capacity.
Do students have sufficient knowledge of physics to take marine biology courses?
Authors: Sarkity Dios , Oprasmani Elfa , Irawan Bony , Sundari Putri Dwi
Published: October 2024

Physics and biology are two branches of science that have many connections. In marine biology courses, students must have a good basic concept of physics. The purpose of this study was to determine whether students’ physics knowledge is sufficient to follow marine biology lectures. This study is a quantitative descriptive study. The study was conducted in May 2024 in the Biology Education study program at Raja Ali Haji Maritime University involving 27 students in their third year of study. Data collection was carried out by testing and analyzing descriptively. The results of the study showed that students did not have sufficient knowledge of physics to be able to follow marine biology courses. This is indicated by the problems found by students in solving questions related to the Effect of the position of the earth, moon, and sun on sea tides, the relationship between salinity and density of seawater, the specific heat of seawater, and the impact of global warming on increasing temperature and rising sea levels. Therefore, action is needed to strengthen the basic concepts of physics of biology students so that when taking biology lectures related to physics, students will be able to understand them well.
How do Coastal High School Students Perceive Student-centred Learning Approach?
Authors: Agust Satria , Siregar Eko Febri Syahputra , Hindrasti Nur Eka Kusuma , Malik Abdul , Rahmatina Desi , YulitaÇ Inelda , Demir Çağlar , Khofifah Khofifah , Aminingsih Aminingsih , Irawati Irawati , Hafizah Nurul , Noviani Raja , Sinaga Shindy Yunn , Maharani Windy
Published: October 2024

This study explores the perceptions of coastal high school students regarding the student-centred learning approach, which prioritizes student autonomy and active engagement. The research specifically focused on Junior High School Number 10 in Tanjungpinang, Riau Islands Province, to understand how geographic and socioeconomic factors influence these students’ educational experiences. Utilizing a descriptive quantitative research design, data were collected through structured questionnaires, followed by analysis using the Rasch Model. This study investigates how coastal high school students view student-centred learning, highlighting the benefits to participation and academic performance in particular. However, certain noteworthy obstacles were noted, including the scarcity of technology and the difficulty of adjusting to more autonomous learning environments. Solutions like improved technology infrastructure and focused teacher preparation are proposed to address these problems. These results highlight how crucial it is to offer customized educational support in coastal areas in order to maximize the efficacy of student-centred pedagogies.
Energy Conversion Technology of Fuel Cells on Ships to Mitigate Greenhouse Gas Emissions
Authors: Natasha Febiana , Patimah Siti , Pardi H. , Vladimir Andine
Published: October 2024

Greenhouse gas emissions are something that contribute to climate change, which is getting hotter and causing concern for the condition of the earth. The shipping sector is a major cause of greenhouse gas emissions, accounting for 2.89% of anthropogenic greenhouse gas emissions and 919 million tonnes of CO2 emissions. This research aims to present different types of fuel cells that can be applied to different vessels. System Literature Review (SLR) is the method in this study to review the data sources obtained with a range of publications in 2019-2024. The result of this review is the acquisition of 2 types of fuel cells that can be used in 8 ships. The types of fuel cells are SOFC and PEMFC. Each fuel cell produces a high percentage of eficiency. Both fuel cells can be integrated into other technologies such as GT, ORC, SRC, and ICE. The companies that support the development of this fuel cell are KC, WHB, MCFC, PAFC, DEC, and LT. Therefore, fuel cells have high potential to mitigate greenhouse gas emissions due to marine transport.
The Activity of Melicope ptelefolia Leaf Extract Against Pathogenic Bacteria in Fish
Authors: Setiaji Jarod , Febrian Prakoso Valentio , Heriyanto Heriyanto , Melati Hisra , Said Raza’i Tengku , Mursyidi Alfan , Zahrani Mufidah , Nur M. , Samin Saproni Muhammad
Published: October 2024

The application of antibiotics to treat bacterial infections poses risks to fish and the ecosystem, highlighting the need for safe, natural alternatives for fish disease treatment. This research focuses on evaluating the antibacterial properties of Melicope ptelefolia extract against various pathogens, including Aeromonas salmonicida, Edwarsiella tarda, Edwarsiella ictaluri, Aeromonas hydrophila, and Pseudomonas aeruginosa. The extract underwent phytochemical analysis, which confirmed the presence of phenolic compounds, flavonoids, saponins, and terpenoids. Antibacterial effectiveness was assessed using the agar diffusion method at 100, 200, 300, 400, and 500 mg/mL concentrations. The results showed that M. ptelefolia extract significantly inhibited the growth of A. salmonicida (13.5 mm to 14.8 mm), E. tarda (12.0 mm to 13.1 mm), E. ictaluri (13.9 mm to 15.8 mm), A. hydrophila (13.5 mm to 14.1 mm), and P. aeruginosa (13.1 mm to 14.0 mm), compared to a control (+) group with inhibition zones of 25.5 mm to 26.0 mm. Overall, the extract exhibited strong antibacterial activity against these pathogenic bacteria, indicating its potential as a natural antibacterial agent for fish.