bluuebunny/crossref_metadata_2025 huggingface dataset:
Fault tolerant trust based task scheduler using Harris Hawks optimization and deep reinforcement learning in multi cloud environment
Authors: Mangalampalli Sudheer , Karri Ganesh Reddy , Mohanty Sachi Nandan , Ali Shahid , Khan M. Ijaz , Abduvalieva Dilsora , Awwad Fuad A. , Ismail Emad A. A.
Published: November 2023

Cloud Computing model provides on demand delivery of seamless services to customers around the world yet single point of failures occurs in cloud model due to improper assignment of tasks to precise virtual machines which leads to increase in rate of failures which effects SLA based trust parameters (Availability, success rate, turnaround efficiency) upon which impacts trust on cloud provider. In this paper, we proposed a task scheduling algorithm which captures priorities of all tasks, virtual resources from task manager which comes onto cloud application console are fed to task scheduler which takes scheduling decisions based on hybridization of both Harris hawk optimization and ML based reinforcement algorithms to enhance the scheduling process. Task scheduling in this research performed in two phases i.e. Task selection and task mapping phases. In task selection phase, all incoming priorities of tasks, VMs are captured and generates schedules using Harris hawks optimization. In task mapping phase, generated schedules are optimized using a DQN model which is based on deep reinforcement learning. In this research, we used multi cloud environment to tackle availability of VMs if there is an increase in upcoming tasks dynamically and migrate tasks to one cloud to another to mitigate migration time. Extensive simulations are conducted in Cloudsim and workload generated by fabricated datasets and realtime synthetic workloads from NASA, HPC2N are used to check efficacy of our proposed scheduler (FTTHDRL). It compared against existing task schedulers i.e. MOABCQ, RATS-HM, AINN-BPSO approaches and our proposed FTTHDRL outperforms existing mechanisms by minimizing rate of failures, resource cost, improved SLA based trust parameters.
The role of chronic pain and pain anxiety in delay discounting of pain and monetary losses
Authors: Białaszek Wojciech , Mizak Szymon , Ostaszewski Paweł , Bąbel Przemysław
Published: November 2023

Pain may alter intertemporal decisions by modifying the value of pain-related outcomes. For example, a person with chronic back pain may be faced with two choices: undergo surgery that could provide long-term relief but would involve additional short-term pain and discomfort during recovery; or continue living with the chronic pain and avoid the surgery, thus leading to overall deteriorated health. Such choices are well captured by delay discounting, which is defined as the decline in the subjective value of an outcome as the delay of its receipt increases. We investigated general pain anxiety and delay discounting of monetary losses and pain in 255 individuals with and without chronic pain. We found that people with chronic pain tend to discount the value of pain outcomes more than those without chronic pain, suggesting that chronic pain may contribute to impulsivity in decision-making related to pain. Moreover, the effect of chronic pain on delay discounting was mediated through general pain anxiety. This result, however, should be taken with caution, because the effect sizes were small, and the path model was underpowered. In conclusion, people with chronic pain might be more likely to prioritize avoiding immediate discomfort and may undervalue the potential long-term benefits of actions that could alleviate their pain in the future.
Dynamics of iron metabolism in patients with bloodstream infections: a time-course clinical study
Authors: Moro Hiroshi , Bamba Yuuki , Nagano Kei , Hakamata Mariko , Ogata Hideyuki , Shibata Satoshi , Cho Hiromi , Aoki Nobumasa , Sato Mizuho , Ohshima Yasuyoshi , Watanabe Satoshi , Koya Toshiyuki , Takada Toshinori , Kikuchi Toshiaki
Published: November 2023

The close relationship between infectious diseases and iron metabolism is well known, but a more detailed understanding based on current knowledge may provide new insights into the diagnosis and treatment of infectious diseases, considering the growing threat of antibiotic-resistant bacteria. This study investigated adult patients with bloodstream infections, temporal changes, and relationships between blood levels of iron and related markers, including hepcidin and lipocalin-2 (LCN2). We included 144 samples from 48 patients (mean age 72 years, 50% male), with 30 diagnosed with sepsis. During the acute phase of infection, blood levels of hepcidin and LCN2 increased rapidly, whereas iron levels decreased, with values in 95.8% of cases below the normal range (40–188 μg/dL). Later, hepcidin and LCN2 decreased significantly during the recovery phase, and the decreased iron concentrations were restored. In the case of persistent inflammation, iron remained decreased. Acute LCN2 levels were significantly higher in patients with sepsis (p < 0.01). Hypoferremia induced by increased hepcidin would reduce iron in the environment of extracellular pathogens, and the increased LCN2 would inhibit siderophores, resulting in the prevention of the pathogen’s iron acquisition in each manner during the acute phase of bloodstream infection.
Results of streamlining TAVR procedure towards a minimalist approach: a single center experience in Taiwan
Authors: Ko Tsung-Yu , Kao Hsien-Li , Chen Yi-Chang , Yeh Chih-Fan , Huang Ching-Chang , Chen Ying-Hsien , Chan Chih-Yang , Lin Lung-Chun , Wang Ming-Jiuh , Chen Yih-Sharng , Lin Mao-Shin
Published: November 2023

Trans-femoral transcatheter aortic valve replacement (TF-TAVR) performed under conscious sedation (LACS) is not yet become routine practice in Taiwan. We aimed to compared the results between patients received general anesthesia (GA) versus LACS. Our cohort was divided into 3 groups: initial 48 patients received TF-TAVR under routine GA (GA group), subsequent 50 patients under routine LACS (LACS group 1), and recent 125 patients under LACS (LACS group 2). The baseline, procedural characteristics and all outcomes were prospectively collected and retrospectively compared. From Sep 2010 to July 2019, a total of 223 patients were included. The procedure time (157.6 ± 39.4 min vs 131.6 ± 30.3 vs 95.2 ± 40.0, < 0.0001), contrast medium consumption (245.6 ± 92.6 ml vs 207.8 ± 77.9 vs 175.1 ± 64.6, < 0.0001), length of intensive care unit (2 [1–5] days vs 2 [1–3] vs 1 [1–1], P = 0.0001) and hospital stay (9 [7–13] days vs 8 [6–11] vs 6 [5–9], P = 0.0001) decreased significantly with LACS, combined with a trend of less hospital acquired pneumonia (12.5% vs 6.0% vs 5.6%, P = 0.427). 1-year survival rate were also different among 3 groups (83.3% vs 90.0% vs 93.6%, P = 0.053). In our single center experience, a “minimalist” approach of TF-TAVR procedure resulted in less medical resources usage, along with more favorable clinical outcomes.
Impact of cardiac rehabilitation on cardiovascular event in Korea
Authors: Song In Sun , Park Yu shin , Jang Suk-Yong , Nam Jung Mo , Lee Chan Joo , Park Eun-Cheol
Published: November 2023

This study aimed to evaluate the effects of cardiac rehabilitation (CR) on major adverse cardiac events (MACE) among patients who underwent PCI procedure. We used data from the electronic medical records (EMR) of a tertiary hospital in Seoul, Korea, from January 2014 to February 2020. Data from 2988 patients who had experienced their first acute coronary syndrome (ACS) and had undergone percutaneous coronary intervention (PCI) were included during the study period. we classified patients into CR participants and non-participants based on their participation in the cardiac rehabilitation (CR) program within 30 days after discharge. And the outcome was the incidence of myocardial infarction (MI) and stroke within 1 year after discharge. The association between participation in CR and risk of developing MACE was evaluated using the Cox proportional hazards model. Patients who achieved CR after undergoing PCI were at a lower risk of developing MI (HR 0.68, CI 0.53–0.86). There was no significant association between participation in CR and the incidence of stroke. Among patients who had more than three stenotic vessels, the risk of developing MI within 1 year of discharge was reduced in CR users compared to non-users (3 or more stenosis vessels: HR 0.55, CI 0.35–0.86). Among patients who used two and more stents during PCI procedures, the risk of developing MI within 1 year of discharge was reduced in CR users compared to non-users (2 and more stents: HR 0.54, CI 0.35–0.85). Among people diagnosed with ACS and receiving PCI, patients who participated in CR within one month of discharge reduced risk of developing MI. Our study reinforced the current evidence on the effect of CR among patients receiving PCI and presented the expansion and enhancement of the CR program.
Transformation of foldable robotic hand to scissor-like shape for pinching based on human hand movement
Authors: Ikeda Hidetoshi , Saeki Takumi
Published: November 2023

Increasing the number of degrees of freedom for multi-finger robotic hands is necessary to achieve high performance. However, this increases structural complexity and the obtained improvement may be small. Humans change the shape of their hands by extending or bending the fingers to apply force to an object through contact with a wide surface or two or more fingers. In some cases, continuous finger movements are not necessary or some fingers do not make contact with the object. A robotic hand with a small number of degrees of freedom could effectively use its fingers to perform many tasks by properly arranging the fingers, increasing the movable range of joints, and utilizing the back and sides of the fingers. This paper proposes a hand system and conducts a theoretical analysis of the transformation of the hand shape into a scissor-like motion to handle a cylindrical object. It is found that the scissor-like motion is unsuitable for cylindrical objects that exceed a certain size. Experiments show the effectiveness of the proposed hand system. The correlation between the contact position of a finger with an object and the success ratio of pinching is demonstrated. Furthermore, a control system that can switch from pinching to grasping when the robot judges that pinching is difficult is developed and experimentally validated.
Naringin ameliorates liver fibrosis in zebrafish by modulating IDO1-mediated lipid metabolism and inflammatory infiltration
Authors: Qin Meng-chen , Li Jun-jie , Zheng Yan-tao , Li Yun-jia , Zhang Yu-xue , Ou Rou-xuan , He Wei-yi , Zhao Jia-min , Liu Su-tong , Liu Ming-hao , Lin Hai-yan , Gao Lei
Published: November 2023

Liver fibrosis (LF) is an important reparative process in response to acute or chronic hepatic injury, which has the potential to advance towards cirrhosis and hepatocellular carcinoma.
Highly differentiated multi-stimuli-responsive fluorescence performance of tetraphenylethylene-containing styrene–maleic acid copolymers induced by macromolecular architecture control
Authors: Gao Ranran , Guo Xiaoning , Wang Li , Yang Wantai
Published: November 2023

TPE-containing styrene–maleic acid copolymers with a diverse chain architecture display highly differentiated fluorescence responsiveness to multiple stimuli.
Recent synthetic strategies for the construction of functionalized carbazoles and their heterocyclic motifs enabled by Lewis acids
Authors: Kumar Marappan Pradeep , G. Mahantesh , Amaladass P. , Manikandan Chitrarasu , Dhayalan Vasudevan
Published: November 2023

This review article demonstrates recent advanced cascade annulation strategies for preparing highly functionalized carbazoles and their related polyaromatic heterocyclic compounds enabled by Lewis acid catalysts.
Acoustic and Physiologic Correlates of Vocal Effort in Individuals With and Without Primary Muscle Tension Dysphonia
Authors: Toles Laura E. , Shembel Adrianna C.
Published: November 2023

Objectives:

The aims of this study were to determine relationships between vocal effort and (a) acoustic correlates of vocal output and (b) supraglottic compression in individuals with primary muscle tension dysphonia (pMTD) and without voice disorders (controls) in the context of a vocal load challenge.

Method:

Twenty-six individuals with pMTD and 35 vocally healthy controls participated in a 30-min vocal load challenge. The pre- and postload relationships among self-ratings of vocal effort, various acoustic voice measures, and supraglottic compression (mediolateral and anteroposterior) were tested with multiple regression models and post hoc Pearson's correlations. Acoustic measures included cepstral peak prominence (CPP), low-to-high spectral ratio, difference in intensity between the first two harmonics, fundamental frequency, and sound pressure level (dB SPL).

Results:

Regression models for CPP and mediolateral compression were statistically significant. Vocal effort, diagnosis of pMTD, and vocal demand were each significant variables influencing CPP measures. CPP was lower in the pMTD group across stages. There was no statistical change in CPP following the vocal load challenge within either group, but both groups had an increase in vocal effort postload. Vocal effort and diagnosis influenced the mediolateral compression model. Mediolateral compression was higher in the pMTD group across stages and had a negative relationship with vocal effort, but it did not differ after vocal loading.

Conclusions:

CPP and mediolateral supraglottic compression were influenced by vocal effort and diagnosis of pMTD. Increased vocal effort was associated with lower CPP, particularly after vocal load, and decreased mediolateral supraglottic compression in the pMTD group.
Rainfall Prediction with Support Vector Machines: A Case Study in Tanjungpinang City, Indonesia
Authors: Hayaty Nurul , Kurniawan Hendra , Rathomi Muhamad Radzi , Chahyadi Ferdi , Bettiza Martaleli
Published: November 2023

Rainfall forecasting is becoming more challenging due to extreme climate change. Especially for the archipelago which has a unique geography compared to the mainland. The aim of this study is to test the performance of the support vector machine in predicting rainfall in Tanjungpinang, Kepulauan Riau, Indonesia. The variables used to predict are temperature, humidity, wind speed, and rainfall. The results obtained is a precision value of 82% for rain, with a ROC curve evaluation score of 0.74. These results show that the model built has a fairly good ability to separate between positive and negative results in predicting rainfall.
Bioactive Compounds and Antioxidant Activity of Mangrove Fruit Extract Bruguiera gymnorrhiza from Pengudang Village, Indonesia
Authors: Rahma Hidayati Jelita , Wijaya Asdi , Hikmat Nugraha Aditya , Karlina Ita , Anggraini Rika , Idris Fadhliyah , Yandri Falmi
Published: November 2023

In some parts of Indonesia, people have consumed mangrove fruit as a traditional food. Bruguiera gymnorrhiza or lindur plant, is one of the mangroves that have bioactive compounds as antioxidant. Antioxidant compounds found in Brugueira gymnorrizha fruit are thought to be able to reduce free radicals. However, the information on the benefits and potential of mangrove fruit as a source of antioxidants is still limited. Not many studies have shown that lindur plant fruit can be used as antioxidants, Therefore, further research on this topic is needed. This research aimed to identify the content of bioactive compounds and the activity of Brugueira gymnorrhiza fruit extract obtained from the Pengudang waters of Bintan Island. This research includes several analyses, including analysis of bioactive compound content, total phenolics and flavonoid content, pigment content, and antioxidant activity analysis. The method used in this research was a laboratory experimental and the DPPH (1,1-diphenyl-2-picrylhydrazyl) method was used to test the antioxidant activity of Bruguiera gymnorrhiza fruit extract. The results showed that the bioactive compounds contained in Bruguiera gymnorrhiza fruit extract are flavonoid and tannin compounds. The total phenolics and flavonoids amounted to 4.05 mg GAE/g sample and 9.36 mg QE/g sample. The content of chlorophyll a, chlorophyll b, and carotenoid pigments were 0.47 mg/g, 1.03 mg/g, and 2.72 μmol/g. Bruguiera gymnorrhiza extract has potent antioxidant activity (IC50 60.77 ppm).
Mangrove Density Mapping from Landsat 8/9 OLI Imagery in Dompak Island, Indonesia: A Study from 2017 to 2022
Authors: Sabriyati Deni , Maulidina Azzahra , Zulfikar Andi
Published: November 2023

Dompak Island, a small island in the Riau Islands Province, has experienced massive urban development by local governments over the last decade. This activity has impacted the sustainability of vegetation and mangrove forests on Dompak Island. A decrease in the mangrove area can affect the condition and sustainability of the species. This study aimed to analyze the changes in mangrove density using Landsat 8/9 OLI satellite imagery of Dompak Island, Tanjungpinang City, from 2017 to 2022. This study used an unsupervised classification method, which used the Normalized Difference Vegetation Index (NDVI) to identify the changes and density of mangroves, and an algorithm to obtain the greenness value of vegetation objects. This study found changes in the area and growth of mangroves. There is a decrease in mangrove density globally. The level of rare density in 2017 and 2022 was still at 23%, the medium density increased by 8%, and the high density decreased by 9%. Based on mapping results, the area of mangrove forests has decreased by 4 ha from 2017 to 2022, namely from 93 ha to 89 ha..
The Potential Development of Shrimp Shell Waste Into Chitosan Originating from Pacitan Coast, Indonesia
Authors: Priyangga Arif , Atmaja Lukman , Santoso Mardi , Jaafar Juhana , Santoso Eko , Hartanto Djoko , Adya Salsabila Rifdah , Ningtyas Anggita , Putra Ramdhani Eka
Published: November 2023

Shrimp is one of the biggest comodities at the Pacitan coast area that was taken its meat to be processed into many food products. This could be due to the accumulation of shrimp shell waste abundantly and has no selling value. The conversion of shrimp shell waste into chitosan is the one breakthrough to increase the value of the shrimp shell waste. The objective of this research is to convert shrimp shell waste into chitosan and characterized the quality of chitosan including the deacetylation degree, crystalinity, and its morphology. This research has successfully isolated chitosan that extracted from shrimp shell waste obtained from Sudimoro coast, Pacitan, Indonesia. Chitosan was isolated through three steps of reaction including deproteination, demineralization, and deacetylation. The chitosan produced had the first deacetylation degree at 75% with the second deacetylation degree at 82% and the total of shrinkage from the raw material is at 84%. The synthesized chitosan also showed the decreasing of its crystalinity and had flakes-type morphology that observed by scanning electron microscopy (SEM).
The designation of special area in the Singapore Strait to solve the pollution due to the oil sludge discharge that affects to the coast of Bintan, Indonesia In order to achieve marine and coastal sustainability
Authors: Syofyan Syofirman , Suhaidi  , Purbaningrum Aulia
Published: November 2023

The coast of Bintan, Indonesia, has experienced pollution due to violations of oil disposal regulations. This paper aims to find out whether the Singapore Strait area can have a special area as an alternative to establishing an area outside the port boundary area to overcome pollution caused by the dumping of oil waste off the coast of Bintan. This research was conducted using a non-doctrinal research method with an empirical approach. with the research methods used it was found that it is important to immediately reduce and prevent pollution by establishing special mandatory methods for the disposal of waste oil from ships. Therefore, the application of mandatory and special methods for special areas as regulated by International Convention for the Prevention of Pollution from Ships (MARPOL) if applied to the Singapore Strait can prevent marine pollution in the strait and have an impact on the Bintan Coast of Indonesia as a Littoral state.
Designing and Content Validity of Instrument for Measuring Marine Environmental Care Attitude Through Integrated Science Learning
Authors: Sarkity Dios , Fernando Adam , Hindrasti Nur Eka Kusuma
Published: November 2023

Marine environmental issues often occur due to human activity. Students as agents of change for the future should make the marine environment better and habitable. It can be realized by internalizing marine environmental care attitude (MECA) through integrated science learning whose study field are closely related to the environment. To find out how far the contribution of integrated science learning in internalizing MECA, an instrument for measuring MECA is needed. This study aimed to determine how to design and how valid the content of the instrument for measuring MECA of junior high school students in Coastal Area. This was a descriptive research. Data were collected by literature review and questionnaires. The data were analyzed qualitatively by presenting instrument that were designed based on a literature review and quantitatively with Aiken’s V formula. The results of the literature review on designing MECA through integrated science learning were four main indicators for measuring MECA, namely marine knowledge, preserving marine environment, preventing marine environment damage, and repairing marine environment damage. The results of the content validity test of instrument assessed by 5 experts showed that instrument for measuring MECA through integrated science learning was valid.
Estimation of Potential Carbon Stocks in Mangrove Ecosystems in the Riau Islands
Authors: Hidayati Jelita Rahma , Alviana Diah , Anggraini Rika , Karlina Ita , Febriansyah Pajri , Fajri Muhammad , Lestari Febrianti , Apdillah Dony , Syakti Agung Dhamar , Sihite Dermawati
Published: November 2023

Global warming is characterized by high concentrations of greenhouse gas emissions, namely CO2, in the atmosphere. Mangrove ecosystems play a role in mitigating global climate change because they can absorb carbon through photosynthesis and then store it in a carbon pool, which includes Above Ground Biomass (AGB), Below Ground Biomass (BGB), litter or dead wood, and sediment. This study aimed to determine the value of biomass, carbon stocks, and CO2 sequestration in the mangrove ecosystem in the Riau Island. Carbon stocks were estimated by collecting data on AGB, BGB, and dead wood using the non-destructive allometric modeling method, and sediment sampling was carried out at 30 cm intervals until the discovery of humus soil. There are eight research stations spread across Riau Island. The results of the biomass calculation are then converted into carbon stock values and CO2 sequestration. The result showed that the mangrove ecosystem in Riau Island had a biomass value of 1854,54 tons/ha, estimated carbon stocks of 2052,78 tonsC/ha, and a CO2 sequestration of 7527,52 tonsC/ha. The mangrove ecosystem in Riau Island has an area of 79.228,91 Ha so it can store carbon reserves of 162.639.342 tonsC. The amount of CO2 can be minimized or controlled by reducing emissions and conserving forests, namely by improving mangrove management according to the function of mangrove forests.
The reef health index for coral reefs management in Indonesia
Authors: Giyanto Giyanto , Rikoh Manogar Siringoringo , Muhammad Abrar , Hermanto Bambang , Tri Aryono Hadi , Rizkie Satriya Utama , Ni Wayan Purnama Sari , La Ode Alifatri
Published: November 2023

The Indonesian coral reef faced significant challenges due to the lack of precise instruments for assessing the health status of corals, which is crucial for ensuring their long-term viability. The reef health index was established by utilizing extensive monitoring data from Indonesia, incorporating metrics such as live coral cover, resilience level, and biomass of the focal reef fish species. In the year 2021, a comprehensive collection of coral reef data was conducted at 22 distinct places within the waters of Indonesia. It is anticipated that the reef health index data will assist stakeholders in effectively and sustainably managing coral reefs. The findings indicate that the reef health index in Indonesia exhibits a range of values from 2 to 7, with 7 being the highest attainable score. Since observations began in 2014, the Indonesian reef health index has maintained a stable value of 5. The available evidence suggests that there is an ongoing occurrence of coral reef degradation in Indonesian waters, as seen by the diminished biomass of the targeted reef fish species. Nevertheless, the potential for recovery of damaged coral reefs exists if the forces that initiate the damage can be mitigated or eradicated.
Biological aspects of bullet tuna (Auxis rochei Risso, 1810) landed in Towo’e Market Tahuna Indonesia
Authors: Budi Nugraha , Chodrijah Umi , Umi  , Hufiadi  , Wagiyo Karsono
Published: November 2023

The bullet tuna (Auxis rochei Risso 1810) is one of the species of neritic tuna that lives in tropical and subtropical coastal waters. Research on the biological aspects of the bullet tuna in Indonesian waters is very important considering the limited information on this species. The purpose of this study is to analyze size structure, length-weight relationship, sex ratio, length at first maturity and length at first capture. A total of 1353 bullet tuna was randomly collected during February-November 2017 at Towo’e Market Tahuna North Sulawesi. The study was conducted by observation and enumeration. The results showed that the bullet tuna landed in Towo’e Market had a length ranging from 19-29 cmFL with an average size of 23.34 cmFL. The LW relationship indicates a positive allometric condition. The sex ratio of male and female bullet tuna showed an unbalanced condition with the ratio of females and males being 1: 0.97. Lm was 22.82 cmFL and Lc was 23.32 cmFL. This condition indicates that most of the bullet tuna caught are already spawning, so caution is needed in their utilization because it can prevent the recruitment pattern of the bullet tuna.
Persistent Organic Pollutants (POPs) in The Sea: A Review
Authors: Safitri Dewi , Edelwis Tri Widya , Pardi Hilfi
Published: November 2023

Persistent Organic Pollutants (POPs) are organic compounds that have been banned or restricted for all purposes. Banning these compounds does not guarantee that the chemicals will not be found in the environment. This is related to the persistence nature of POPs. To investigate the presence of POPs in the environment. Environmental monitoring of POPs is one of the efforts to support POPs management. The most frequently discussed pollutants in the last 3 years are polychlorinated biphenyls (PCBs). In addition, an effective method in degrading Persistent Organic Pollutants is the fabrication of ultra-thin graphitic carbon nitride decorated CoFe2O4/Mn3O4 nanosheet membranes with a yield of 94.5% and a kinetic rate (0.1367 min.-1) For norfloxacin (NOR) within 30 minutes. But for a method that uses simple, efficient and affordable technology to remove organic pollutants from aquatic systems is Biosorption using biomass waste, using tannin-rich waste such as coffee grounds and green tea grounds capable of degrading 10 μM chlordecone.
Hydroponic Rhizophora sp Saplings Significantly Improve Effectiveness and Efficiency of Mangrove Planting
Authors: Irawan Henky , Subhiyanti Ery , Erkyawan Daffa Alfathin
Published: November 2023

This research aims to evaluate the effectiveness and efficiency of planting mangroves Rhizophora sp using hydroponic saplings compared to conventional polybag saplings. The hydroponic method was tested to increase the efficiency of mangrove planting through effective effectiveness that is lighter and easier to carry in large quantities. This research involves planting mangrove seedlings on a field scale using both methods. The results showed that hydroponic saplings had better effectiveness and efficiency performance than polybag saplings. The advantages of hydroponic saplings in terms of portability and the ability to plant in large quantities can be an attractive alternative in conservation and rehabilitation efforts for mangrove ecosystems. The results of this research indicate that the use of hydroponic saplings in planting can increase effectiveness by 4,512-5,869%, where 1 person can carry 294-385 saplings compared to saplings in small size polybags where 1 person can only carry 7 saplings and can achieve efficiency by 2 %, where 1 Ha only requires 7-9 people compared to saplings in large polybags where 382-384 people have to carry them people, which means it can reduce the number of people 98 % that perform significantly improve from polybag saplings.
Climate Change: Riau Archipelago Pre-service Teachers’ Perspective
Authors: Liana Metta , Rahmi Aulya Ade , Azmi Roma Doni , Sarkity Dios
Published: November 2023

Climate change (CC) has affected many aspects of life, including social, environmental, political, and economic. As educators in the future, pre-service teachers need to be equipped with the understanding and motivation to be involved in efforts to overcome problems related to facing CC challenges and opportunities. Riau Archipelago is a province in Indonesia that is a coastal area that directly experiences the impacts of CC. This research investigates pre-service teachers’ perspectives on CC in coastal areas. The study employed the descriptive survey method using a 5-Likert scale instrument to involve pre-service teachers in the Riau Archipelago. Respondents (n=224) were selected from the undergraduate student population. The research results show that pre-service teachers’ perspectives in coastal areas, it is important to know and implement various solutions to CC. However, pre-service teachers have low motivation to overcome CC. However, the low motivation of student teachers needs to be improved because pre-service teachers are part of society and have an important role in understanding students so they can apply and face climate change problems. It is hoped that future research can provide a clearer picture of how efforts can be made to increase pre-service teachers’ motivation to participate in overcoming problems in CC in coastal areas.
Navigating Sustainable Development in ASEAN: A Comprehensive Review of the Blue Economy’s Essential Questions
Authors: Setiawan Azhari
Published: November 2023

This paper explains five essential aspects related to the development of Blue Economy. The study delves into the dynamic realm of the blue economy, where marine resources and activities hold immense potential for ASEAN sustainable development. Through the lens of five essential questions, this study navigates the uncharted waters of economic, environmental, political, legal, and socio-cultural facets inherent to this burgeoning domain by reviewing 35 related literatures on blue economy discourses. By addressing these pivotal questions, we navigate towards a horizon of findings and review results where the blue economy emerges as an emblem of prosperity, ecological stewardship, and a harmonious ASEAN community poised for a sustainable future.
Participation of Coastal Women in Community Empowerment Activities : A Case Study of Kuala Sempang Village, Bintan Regency
Authors: Haidawati Haidawati , Ulfah Fitria , Tetty Tetty , Hafsar Khairul , Khairunnisa Khairunnisa , Reni Angga , Waty Zein Linda
Published: November 2023

In the context of various Indonesian coastal regions, including Kuala Sempang Village, Bintan Regency, women in coastal areas assume pivotal roles in sustaining the family's economic stability due to the uncertain nature of family income. This prompts their active engagement in diverse economic endeavors encompassing fishing, agriculture, trade, and creative industries. Community empowerment emerges as a potential panacea to address the multifaceted challenges they encounter. This study seeks to assess the extent of women's involvement in community empowerment initiatives and evaluate their repercussions on the economic dynamics of families in Kuala Sempang Village, Bintan Regency. The research employs a mixed-method approach, integrating qualitative and quantitative elements, with data collection methods spanning observation, Likert-scale questionnaire dissemination, and interviews. The findings of this investigation reveal that women's participation in community empowerment activities, primarily within Joint Business Groups (KUBE), is notably robust, traversing three phases, including planning (91.1%), implementation (94.9%), and evaluation (92%). Consequently, the involvement of coastal women in empowerment endeavors within Kuala Sempang Village, Bintan Regency, exerts a tangible influence on the enhancement of their skills and family income.
Mapping the Potential of Tourism Villages Using Geographical Information System in Bintan Regency, Riau Islands, Indonesia
Authors: Esty Kurniawati , Fitria Ulfah , Bunga Paramita , Falmi Yandri , Tantri Silvani
Published: November 2023

Tourist villages are typically formed to provide at least three major benefits to the local community, namely economic, social, and environmental benefits. Pengudang and Busung villages have the potential to be used as tourist destinations, but this potential has not been fully realized. Pengudang and Busung Villages have been unable to provide economic benefits to the surrounding community due to a lack of utilization and development of natural resources. So far, the hub of tourist activity in Bintan Regency has only been Sebong Lagoi Village and its environs. Despite the fact that there are many villages in Bintan Regency with interesting development potential. As a result, a strategy must be developed so that Pengudang Village and Busung Village, in addition to Sebong Lagoi Village, can be developed as alternative tourist destinations. The use of geographic information systems can aid in the mapping of potential tourist villages. The goal of this study is to use a geographic information system to identify and map the tourism potential in Pengudang and Busung villages. This study employed a spatial analysis based on attractiveness and supporting facilities. According to the results of spatial data processing and field surveys, Pengudang Village has five tourism potentials, while Busung Village has four.
Comparison of oil and gas fiscal policies in Southeast Asian Countries: Indonesia, Malaysia and Brunei Darussalam
Authors: Ariyon Muhammad , Sukendi Sukendi , Manda Putra Ridwan , Kausarian Husnul , Santika Bella
Published: November 2023

This study's objective was to examine the comparison of petroleum management policies in accordance with the concession contract system and production sharing contract system in several countries in the Southeast Asia region. In contrast to existing research, this comparison focuses more on the countries of Indonesia, Malaysia and Brunei Darussalam, which are developing countries producing petroleum in the Southeast Asia region. Moreover, this comparative research will be used to identify the kind of oil and gas contract that will yield the highest profits for Indonesia. Since Indonesia is a developing nation that is an archipelago, it depends heavily on its oil and gas resources for foreign exchange, necessitating the creation of suitable oil and gas management laws. Comparison of oil and gas policies undertaken through interviews with oil and gas law experts and a literature review of the history of the petroleum management policies in each country. The study's findings indicate that production sharing contracts are more profitable to implement in developing maritime countries such as Indonesia, Malaysia and Brunei Darussalam compared to the concession system. This is due to the implementation of a production sharing contract system in the state has a strong position towards contractors. Apart from that, the provisions in the Production Sharing Contract also require the use of domestic labor and goods. This will definitely increase the multiplier effect and technology transfer so that Indonesia is expected to be able to compete with other countries.
Architecture of symmetrical bifacial perovskite/Si/perovskite PV modules and LCOE comparison in bifacial applications
Authors: Martin Amaury , Grand Pierre-Philippe , Hull Matthew , Rousset Jean , Oberbeck Lars
Published: November 2023

Perovskite on silicon tandem technologies offer a promising way to overcome the efficiency limit of single-junction crystalline silicon modules and are therefore widely studied. Besides the cost reduction potential of using tandem modules in utility-scale PV plants, the application of bifacial PV modules offers additional opportunities to reduce costs by increasing the energy yield. However, the bifaciality factor of tandem PV modules using bifacial crystalline silicon solar cells is typically lower than that of single-junction bifacial modules, considering the asymmetric architecture of the module with higher front-side than rear-side efficiency. In this study, we assess a symmetrical bifacial triple-junction perovskite/silicon/perovskite PV module architecture which allows for a significant improvement of the PV module rear side efficiency. Cost of ownership, energy yield and levelized cost of energy modeling show the superior performance of such modules compared to crystalline silicon and perovskite/silicon tandem modules specifically in vertical mounting applications that are used e.g.in AgriPV or noise protection PV walls on highways.
Hinge-lever mechanisms of variable structure and their applications in engineering
Authors: Dzhumataev Murat
Published: November 2023

The report discusses the transition of hinge-lever mechanisms from one structure to another and the use of these properties to create machines for various purposes. Our research has shown that when some parameters or their ratios change, conditions are created for a possible change in the structure of the mechanism. One of the schemes of hinge-lever mechanisms of variable structure was used in the design of the drilling module as part of the Luna-24 station for drilling a hole on the surface of the Moon, as a generator of power pulses. A major application of lever mechanisms of variable structure was their use as a working body in pressure presses. The report outlines the stages of creating impact machines based on mechanisms of variable structure, from hand-driven perforators to hammers with high impact energy. The design research was accompanied by studies of the kinematics and dynamics of impact machines with mechanisms of variable structure, the identification of new properties, the synthesis of the most optimal design and operating parameters of the power transmission.
Spatial motions transformers for incorporation into robot systems – review of the Bulgarian experience
Authors: Abadjieva Emilia
Published: November 2023

This work is a review of research carried out by the author on the synthesis and design of the spatial gear mechanisms, oriented for incorporation in various technical devices, especially in robotic systems. It contains also a description of the innovative and inventive activities of the author over the years. The study illustrates the elaborated through the years, basic algorithms for the synthesis of spatial motions transformers (in particular Spiroid and Helicon gear sets), which are based on the mathematical model for synthesis upon a pitch contact point. The content of the solution of the two main tasks of the synthesis - synthesis of the pitch configurations and synthesis of the active tooth surfaces configures the mentioned above algorithm. Through it, real models of Spiroid and Helicon gear transmissions are synthesized and elaborated by 3D printing subsequently, which are designed for incorporation into robots of various purposes
Determination of the parameter color of fresh engine oils by color indices and predictive models
Authors: Ivanova-Vasileva Albena , Zlatev Zlatin , Georgieva Tsvetelina , Daskalov Plamen
Published: November 2023

Color prediction tools for motor oils, which can be used to assess their quality are presented in the paper. Three measuring devices working on optical principle for color prediction was used and compared. Color models and color index are defined by RGB, Lab and LCh color components. It was found that the combined use of seven color indices leads to an increase in accuracy for predicting the value characteristics of motor oils.. The obtained results demonstrate that the algorithm used for the analysis of color characteristics of motor lubricating oils allowed the creation of adequate regression models. The proposed research tools can be used in practice, which enables a quick assessment of the quality of motor oils based on the parameter color.
Prävalenz, phänotypische Merkmale und prognostische Rolle einer offensichtlich behandlungsresistenten Hypertonie in der deutschen Studie über chronische Nierenerkrankungen (GCKD)
Authors: van der Giet Markus
Published: November 2023

Bei Patienten mit chronischer Nierenerkrankung (CKD: „chronic kidney disease“) scheint eine behandlungsresistente Hypertonie (TRH: „treatment-resistant hypertension“) von besonderer Bedeutung zu sein. Die Ursachen und Folgen der TRH bei CKD-Patienten sind allerdings nicht vollständig geklärt. Daher analysierte die Arbeitsgruppe um Mielke et al. die Prävalenz der scheinbaren TRH (aTRH: „apparent TRH“) sowie die mit aTRH verbundenen phänotypischen Merkmale und Prognosen bei Teilnehmern der GCKD-Studie (GCKD: German Chronic Kidney Disease). Da eine unzureichende Medikamenteneinhaltung eine häufige Ursache für Pseudoresistenz ist, wurde zudem die Therapietreue der Studienteilnehmer beurteilt. Sie wurden abhängig vom Blutdruck während des Studienbesuchs und der selbstberichteten Medikamenteneinnahme eingeteilt in aTRH, kontrollierte Hypertonie und unkontrollierte Hypertonie. Die Beurteilung der Medikamenteneinhaltung erfolgte durch den Vergleich von selbstberichteten blutdrucksenkenden Medikamenten mit nachweisbaren Medikamentenmetaboliten im Urin, die mittels Massenspektroskopie gemessen wurden.
Die besondere Rolle des Modellvorhabens nach § 64b SGB V für die psychiatrische Adoleszentenstation in Riedstadt
Authors: Duve Annette , Jürgens Sevinc , Pluschke Lena-Sophie , von Peter Sebastian , Schwarz Julian
Published: November 2023

Die Trennung von Kinder- und Jugend- (KJP) und Erwachsenenpsychiatrie (EP) führt zu Brüchen in der Versorgung und verhindert eine sachgerechte und kontinuierliche Behandlung der Gruppe der Adoleszenten. Um dies zu überwinden, wurde am Vitos Klinikum Riedstadt 2019 eine Adoleszentenstation (AS) implementiert, welche erstmals eine sektorenübergreifende Behandlung von 16- bis 25-Jährigen ermöglicht. Die AS wurde auf Basis eines psychiatrischen Modellvorhabens nach § 64b SGB V, welches am Standort Riedstadt sowohl die KJP als auch die EP und nahezu alle Kostenträger umfasst, entwickelt.

Der vorliegende Artikel gibt einen Überblick auf den Stand neuerer Versorgungsansätze im Bereich der Adoleszentenpsychiatrie in Deutschland, die Umsetzung der AS und des Modellvorhabens am Standort Riedstadt und stellt ein begleitendes Forschungsprojekt (EvAdoR-Studie) vor. Abschließend wird der Zusammenhang von Modellvorhaben und Adoleszentenpsychiatrie diskutiert.
Am Anfang war das Regionalbudget
Authors: Deister Arno , Wilms Bettina
Published: November 2023

Beginnend mit den Regionalen Psychiatrie-Budgets wurden in Schleswig-Holstein im Rahmen sich verändernder gesetzlicher Grundlagen Modellprojekte in der psychiatrisch-psychotherapeutischen Versorgung mit den Mitteln des Krankenhauses konzipiert und umgesetzt. Seit 1999 entwickelten Protagonisten aus Politik, von Kostenträgern und Krankenhausmedizin ein verändertes Finanzierungsmodell. Ziel war es, die Behandlung für eine definierte Population einer Region flexibler gestalten zu können. Seit 2012 sind die vormals vertraglich vereinbarten Modelle in Regelungen nach § 64b SGB V übergegangen. Die Regelungen zur Finanzierung und die darauffolgenden Verbesserungen für die Patientenversorgung werden dargestellt.
The peaceful use of outer space: protecting life on Earth
Authors: Freeland Steven
Published: November 2023

The way we explore and use of outer space is fundamental in terms of the world economy, strategic thinking, terrestrial military strategy, geopolitics, human rights, commercial enterprise, tech innovation and, frankly, the future of humankind. The impact of our use of space and the increasing range of space activities mean that law has an important role in ensuring that such activities are carried out in an appropriate manner. But law is not enough. We need to adjust our mindset about the use of space to recognise its uniqueness and the ‘humanity’ and ‘common interest’ doctrines that underpin it. A claim by some elements of society that space is the new ‘warfighting domain’ contradicts the 6-decade-long understanding that it is a shared area governed by international law, where global interests converge to ensure its exploration and use for the benefit of humanity. The goal of preventing an arms race in outer space (PAROS) is vital and must be continued, yet it still contemplates and may even legitimise increased military uses of space. We need to set our ambitions even higher—a pursuit of a ‘peace race’ in space. Only then can we begin to move towards an even broader aspirational goal of utilising international human rights law to protect humanity for all threats that might emerge from activities taken above us.
Mapping structure-function relationships in squid-inspired composite materials
Authors: Thompson Avery
Published: November 2023

The dynamic infrared properties of composite materials are determined by their surface structure.
Author Correction to “Mesoscale Simulation of Vesiculation of Lipid Droplets”
Authors: Xu Rui , Wang Zi-lu , He Xue-hao
Published: November 2023

We regret to announce that two parameters (θ0, rc) were found incorrect after publication due to the author’s typing errors. The two parameters were published in Chin. J. Chem. Phys. 27, 663–671 (2014). DOI: https://doi.org/10.1063/1674-0068/27/06/663-671.

In page 664, in the sentence “Similarly, a small equilibrium angle (θ0 = 10°) with the bending constant (kangle = 20 kJ/(mol·rad2)) is empirically selected to stabilize the bilayer structure.”, “θ0 = 10°” should be corrected as “θ0 = 30°”.

In page 665, in the sentence “In the present CG model rc is set as 2.772 nm and the start position of r1 = 2.25 nm.”, “rc is set as 2.772 nm” should be corrected as “rc is set as 2.722 nm”.

The two parameters (θ0, rc) of the model used in the work are the same as those of the work [J. Phys. Chem. B 120, 2262–2270 (2016)].
Modeling polarization effects on internal quantum efficiency of micro-LEDs at low current density
Authors: Wei An-Chi , Liu Ya-Lun , Sze Jyh-Rou
Published: November 2023

This study investigates the optoelectronic properties of blue micro-light-emitting diodes (µ-LEDs) by modeling the semipolar single quantum well (QW) at low current density. Through simulation analyses, the influences of the eight selected crystal orientations and different QW thicknesses on the internal quantum efficiency (IQE) and forward voltage are investigated for low current density LEDs. The simulation results of the energy band diagram show that reversed polarization increases the band tilt in the same direction as the built-in electric field, resulting in IQE poorer than that of LEDs whose polarization is of the same magnitude but positive. However, reversed polarization also reduces the hole barrier height, resulting in lower forward voltage at the same current density. Finally, it is found that weakly positive-polarized (101̄2) LEDs have the highest IQE and maximum allowed thickness at low current density, which is due to the flat energy band with a reduced band tilt caused by weakly positive polarization.