bluuebunny/crossref_metadata_2025_split huggingface dataset:
Conducting Vessel Data Imputation Method Selection Based on Dataset Characteristics
Authors: Fatyanosa Tirana Noor , Firdausanti Neni Alya , Soto Luis Francisco Japa , Santos Israel Mendonça dos , Prayoga Putu Hangga Nan , Aritsugi Masayoshi 
Published: July 2023

Abstract
Time series datasets collected from marine sensors inevitably undergo missing data problems. This cause unreliable sensor data to assist the decision-making process. Many methods are offered to impute missing values. However, selecting the best imputation method is not a trivial task, as it usually requires domain expertise and several trial-and-error iterations. Furthermore, when imputations are carried out in a careless way, it generates a high error factor that can lead stakeholders to wrong assumptions. This paper provides a systematic approach that is able to extract characteristics of underlying data and, based on it, recommends the less error-prone imputation method. We evaluate our proposed method using nine real-world vessel datasets. In total, we generated 3859 data samples consisting of 17 inputs and 1 target feature. Experimental results show that the proposed approach is capable of obtaining a weighted F1-Score of 92.6%. Additionally, when compared with the application of careless selected imputation methods, our work is able to gain up to 86% on the average imputation score, with the worst case gain being of 5%. We empirically demonstrate that the proposed approach is efficient when selecting the best imputation methods.
Comparative Study of Tubular Joint Design Formulas According to API RP 2A WSD 21st Edition and 22nd Edition
Authors: Primastuti R A , Prastianto R W , Alfian D , Susanto I , Fadlianto P , Syalsabila F 
Published: July 2023

Abstract
The strength of the jacket substructure on a fixed offshore platform is dictated by the strength of the tubular connecting the jacket leg and the braces. The accuracy of the static strength calculation of the tubular joint is very important to ensure the integrity of the structure during its operation. Therefore, as a Recommended Practice, API RP 2A WSD always regularly was updated based on the results of the latest research to obtain more accurate results in the analysis of the tubular joint. This paper discusses the difference between simple tubular joint design calculation based on API RP 2A WSD 21st Edition and API RP 2A WSD 22nd Edition. This study will show simple joint design calculation for joint types of K, T, and X. The results will be compared to the modelling results for validation. Furthermore, this paper will study variables affecting the difference in the calculation of the result between these two versions and which factors the API considers in changing the formula. This analysis results certainly show the difference in the formula between these two editions of the API, and the comparison with the finite element analysis demonstrates good results.
Fleet Ownership Model for Mineral Export Products Concerning Indonesia’s Downstream Mineral Policy: A Case Study of Copper Ore Exports
Authors: Achmadi T , Lazuardi S D , Buana IGNS , Mustakim A , Rahmawati R S 
Published: July 2023

Abstract
Indonesia’s copper ore has a contribution of 3% in the world’s copper ore needs and has rank of the 5th largest export of mining materials after briquette, kerosene, coal, and crude oil. According to Mineral and Coal Mining Law Number 4 of 2009 that raw materials of mining products have been prohibited to be exported including copper ore due to increasing the value of mineral export products. Thus, it would affect to the current copper ore shipment, which should firstly be processed by smelter to be work-in-process products, namely cathodes. In order to comply with the downstream policy, this study aimed to select the optimum vessel used for delivering copper ores to smelter as well as to define the minimum unit cost for transporting cathodes from smelter to importing countries. The method of non-linear programming was used to produce the minimum unit cost of transport for these three scenarios of fleet ownership model: (1) charter vessel, (2) new shipbuilding vessel, (3) second-hand vessel. The results obtained that the selected domestic ship was a new shipbuilding scenario with the type of bulk carrier, transporting copper ores from site to smelter. Meanwhile, the selected export ship was a voyage charter scenario with the type of general cargo vessel, delivering cathodes from smelter to importing countries.
Evaluation of Energy Efficiency Existing Ship Index (EEXI) on Container Ship in Indonesian Shipping
Authors: Wiliyan Ricco , Made Ariana I , Widhi Dhimas 
Published: July 2023

Abstract
CO2 has been one of the biggest contributors of Green House Effect, crippling the ozone of our own earth over the years. Ships, as the biggest transportation mode in the world, estimated to produce 1,046 millioin tonnes of CO2 approximately 3,3% from the total of CO2 emission across the globe. International Maritime Organization, through Marine Pollution (Annex VI) convention, has set a goal to reach carbon intensity reduction by 40% on 2030 and 100% by 2100. Furthermore, by 2023, a similar but novel regulation would be forced entry for those more than 400 GT existing ships which called “Energy Efficiency for Existing Ship” (EEXI). NKClass stated, about 6050 ships would be further regulated and 80% of NKClass Container vessel would need to be “Technically” adjusted in order to comply with the regulation and CO2 reducing program. “EPL” is one of the ways to achieve it. In this study, one of Indonesian Container Vessel would be analysed in the face of EEXI. With the calculation being done, a good understanding on how ship owner and other stakeholders must do, in order to comply with CO2 reduction programme while maintaining the best performance and business process as it can, might be more cleared.
Verification and validation of ITTC benchmark ship CFD performance towards development of CFD and EFD combined methods
Authors: Sunarsih  , Nanda M. I. , Purnamasari D. , Baidowi A. , Syarif I. S. 
Published: July 2023

Abstract
CFD applications in ship hydrodynamics have been remarkably exploited in the past decades. However, the supremacy of experimental tests, known as EFD, are irreplaceable even against the urgency of less laborious and low-cost hydrodynamic prediction methods. Recently, ITTC has introduced and worked out on CFD and EFD combined methods to benefit the best combination of CFD and EFD for the predictions of ship hydrodynamics. This study explores CFD performance towards development of CFD and EFD combined methods by employing ITTC benchmark ships. The ships were modeled and tested in various operating conditions where results were examined against EFD values from previous studies. Accuracy of the simulation results yielded as high as 97.03% indicates that the presented approach is rigor as a basis of CFD and EFD combined methods for sustainable fluid dynamic analysis.
Economic Recovery of Coastal Communities Post COVID-19 Through Marine Ecotourism Management in Wongsorejo, Banyuwangi (case study: Grand Watudodol Beach)
Authors: Zubaidah A F , Pratikto W A , Zikra M 
Published: July 2023

Abstract
Banyuwangi is known for its abundant natural, coastal, and marine resources potential. The existence of tourism potential in each region as well as tourism sector development policies make Banyuwangi a global region in the tourism sector. The tourism sector is the leading sector of economic growth in Banyuwangi to contribute to a source of national income. For the national maritime industry, Banyuwangi marine tourism has the opportunity to be developed in a sustainable manner. One of them is the coastal district of Wongsorejo Banyuwangi which has many marine tourism destinations along its coastline. However, COVID-19 pandemic since 2020 until now continues to reduce the economic conditions on the Wongsorejo coastal. So, using Fault Tree Analysis method, a study of the reasons behind the decreasing economic conditions in the marine ecotourism management industry was conducted. The findings revealed a total of 6 factors. The primary issues identified are the poor quality of human resources and the lack of innovation in utilizing the potential of marine ecotourism in a sustainable. The solution is ecotourism management, which involves community and stakeholder empowerment, mapping the potential of marine ecotourism and its protected areas, implementing integrated tourism destination programs to promote equity, and providing training.
The analysis of delay factors on the construction of submerged turret production buoy structure
Authors: Silvianita  , Sidiq R B , Utomo C 
Published: July 2023

Abstract
In every project implementation, not everything is according to plan, many factors are causing project delays. This paper identifies the common factors contributing to project delays. The above problems occurred in the construction of the Submerged Turret Production Buoy structure which was carried out by PT. XYZ with height 28937 mm. In this study, an analysis of the factors causing project delay was carried out using a Fault Tree Analysis method. From the calculations obtained that the main factor contributing to project delay is a problematic client with a probability of 0.048812, the second factor is poor planning and management with a probability of 0.218186, the third factor is problematic contractors with a probability of 0.037472. The probability of project delay in the Submerged Turret Production Buoy structure is 0.304470. Knowing these factors will help to degrade the project delay in the future.
Risk assessment on offshore pipes
Authors: Silvianita  , Agustina C , Hadiwidodo Y S , Suntoyo  , Dhanistha W L 
Published: July 2023

Abstract
Pipelines are the most frequently failed parts of oil production installations. Therefore, the safety of underwater gas pipelines became a very concerned focus in this study. This study aims to assess the risk of the pipeline due to changes in the new ABC Port shipping line that have the potential to pose a risk of pipeline damage. This study conducted a risk assessment on pipes at PT. XYZ due to anchor dropping, anchor dragging, and sinking ships. Based on the risk assessment that has been carried out on all risks, it is found that the level of risk is in an acceptable area and in the ALARP zone (As Low as reasonably Practicable Risk). Based on the results of the analysis using Ansys structural software, the maximum value of equivalent stress that occurs in the pipe due to dropped anchor can be received is no more than 0.9 of the SMYS (Specified Minimum Yield Stress) value of 4.05E+08 Pa.
A reasoning of economic complexity based on simulated general equilibrium international trade model
*
Authors: Hu Yumin , Fan Zhongchen , Yifu Lin Justin , Xu Mingzhi (Jimmy) 
Published: July 2023

Abstract
By simulating a multi-country general equilibrium international trade model, we investigate how the economic complexity index (ECI) and fitness index (FI) are related directly to economic fundamentals with a clear basis in theory. The model is based on Eaton and Kortum (2002 Econometrica
70 1741–79) and combines factor endowment (Heckscher-Ohlin) and technological (Ricardian) reasons for specialization, which further determines economic complexity across countries. First, we find that FI performs better than ECI in explaining the real-world specialization pattern, where successful countries not only produce complex products due to the comparative advantage but also tend to produce a wide range of possible products due to the absolute advantage. Second, we highlight that the predictive power of various economic complexity measures for income is crucially sensitive to other factors that shift marginal cost from its efficient level in manufacturing sectors. The essence of such an issue lies in the assumption that the revealed comparative advantage (RCA) correctly reflects a country’s real capability of specialization across different goods. However, there would exist a gap between the core idea of learning the national complexity from RCA and the fact that the revealed specialization pattern in data may not necessarily suggest a country’s actual capability in the presence of distortions, the latter of which is ubiquitous across developing countries.
The West Riding Lunatic Asylum Medical Reports: the precursor of Brain?
Authors: Larner Andrew J 
Published: July 2023

Abstract
First published in 1878, Brain: A Journal of Neurology is generally considered to be the world’s first neuroscientific journal. However, this claim might be challenged since the West Riding Lunatic Asylum Medical Reports, another journal with significant neuroscientific content, was published between 1871 and 1876. Some have suggested this journal was the precursor of Brain, since it shared similar subject matter as well as editorial and authorial contributors, including James Crichton-Browne, David Ferrier and John Hughlings Jackson.
To address this question, this article examines the origins, aims, structure and contents of, and some of the contributors and contributions to, the West Riding Lunatic Asylum Medical Reports and compares these elements to the first six volumes of Brain (1878–9 to 1883–4). Although the two journals did overlap in terms of some shared neuroscientific interests, Brain evidently had a broader scope and a more international authorship.
Nevertheless, this analysis suggests that, through the agency of Crichton-Browne, Ferrier and Hughlings Jackson, it is appropriate to regard the West Riding Lunatic Asylum Medical Reports as not only the antecedent but also the precursor of Brain.
Glucocorticoid withdrawal syndrome following surgical remission of endogenous hypercortisolism: a longitudinal observational study
Authors: Zhang Catherine D , Li Dingfeng , Singh Sumitabh , Suresh Malavika , Thangamuthu Karthik , Nathani Rohit , Achenbach Sara J , Atkinson Elizabeth J , Van Gompel Jamie J , Young William F , Bancos Irina 
Published: July 2023

Abstract

Objective
Glucocorticoid withdrawal syndrome (GWS) is a scarcely studied phenomenon that complicates the recovery following surgical remission of hypercortisolism. We aimed to characterize the presence and trajectory of glucocorticoid withdrawal symptoms in the postoperative period and to determine presurgical predictors of GWS severity.

Design
Longitudinal observational study.

Methods
Glucocorticoid withdrawal symptoms were prospectively evaluated weekly for the first 12 weeks following surgical remission of hypercortisolism. Quality of life (CushingQoL and Short-Form-36) and muscle function (hand grip strength and sit-to-stand test) were assessed at the baseline and at 12 weeks after surgery.

Results
Prevalent symptoms were myalgias and arthralgias (50%), fatigue (45%), weakness (34%), sleep disturbance (29%), and mood changes (19%). Most symptoms persisted, while myalgias, arthralgias, and weakness worsened during weeks 5-12 postoperatively. At 12 weeks after surgery, normative hand grip strength was weaker than at baseline (mean Z-score delta −0.37, P = .009), while normative sit-to-stand test performance improved (mean Z-score delta 0.50, P = .013). Short-Form-36 Physical Component Summary score worsened (mean delta −2.6, P = .015), but CushingQoL score improved (mean delta 7.8, P &lt; .001) at 12 weeks compared to baseline. Cushing syndrome (CS) clinical severity was predictive of postoperative GWS symptomology.

Conclusion
Glucocorticoid withdrawal symptoms are prevalent and persistent following surgical remission of hypercortisolism with baseline CS clinical severity predictive of postoperative GWS symptom burden. Differential changes observed in muscle function and quality of life in the early postoperative period may reflect the competing influences of GWS and recovery from hypercortisolism.
Selection on weapon allometry in the wild
Authors: Emberts Zachary , Somjee Ummat , Wiens John J 
Published: July 2023

Abstract
Allometry is the scaling relationship between a trait and body size. This relationship can often explain considerable morphological variation within and among species. Nevertheless, much remains unknown about the factors that underlie allometric patterns. For example, when different allometric relationships are observed amongst closely related species, these differences are regularly considered to be products of selection. However, directional selection on allometry (particularly the slope) has rarely been tested and observed in natural populations. Here, we investigate selection on the scaling relationship between weapon size and body size (i.e., weapon allometry) in a wild population of giant mesquite bugs, Pachylis neocalifornicus (previously Thasus neocalifornicus). Males in this species use their weapons (enlarged femurs) to compete with one another over access to resources and females. We found that large males with relatively large weapons successfully secured access to mates. However, we also found that small males with relatively small weapons could access mates as well. These two patterns together can increase the allometric slope of the sexually selected weapon, suggesting a straightforward process by which the allometric slope can evolve.
The Philippines and the liberal rules-based international order
Authors: Misalucha-Willoughby Charmaine 
Published: July 2023

Abstract
How do small powers choose the version of an international order to subscribe to? What factors are at play when a state subscribes to the rules-based order or decides to abandon those commitments and shift to an alternative version of order? The argument put forth in this article is that this choice is a function of domestic dynamics and the expected foreign policy gains of the sitting leader. In questioning the automaticity of a small power's choice, the article makes two important contributions. At the conceptual level, it supports the idea that orders persist because of the mutually constitutive actions of great and small powers. It lends credence to the claim of intersubjectivity in international relations and emphasizes that agency is anchored in relations between states. At the policy level, the article finds that while the Philippines seems to automatically subscribe to the United States-led order, pockets of resistance are a function of a colonial past that lingers to this day, which became fertile ground for the country's pivot to China during the Duterte administration. The article closes by highlighting that alliances risk their cohesion and effectiveness without coordinated maintenance, so policy lessons on alliance management are necessary to improve collective security arrangements.
Unpacking Thailand's conceptions of and position within the liberal international order
Authors: na Thalang Chanintira 
Published: July 2023

Abstract
Based on statements made by political and military elites and government officials, the article explores how Thailand selectively supports and capitalizes on certain elements of the contemporary world order, namely United States-led security cooperation and economic liberalism, while half-heartedly embracing the ideals of liberal democracy. Although this never caused problems with the West during the Cold War, matters began to change in the 1990s against the backdrop of systemic-level shifts. While these developments have caused sporadic tensions with the West and effectively brought Thailand closer to China, Thailand has pragmatically sought ways to maintain its autonomy from both the United States and China. Based on Thailand's experience, this article reveals how smaller states pursue a variety of strategies to enhance their agency despite their lack of material capabilities. In turn, the discussion exemplifies how smaller states are not always determined by systemic level factors but possess the ability to prioritize and actualize regime security and national ideals while navigating the evolving international and regional orders.
A highly contiguous reference genome for the Steller’s jay (Cyanocitta stelleri)
Authors: Benham Phred M , Cicero Carla , DeRaad Devon A , McCormack John E , Wayne Robert K , Escalona Merly , Beraut Eric , Marimuthu Mohan P A , Nguyen Oanh , Nachman Michael W , Bowie Rauri C K 
Published: July 2023

Abstract
The Steller’s jay is a familiar bird of western forests from Alaska south to Nicaragua. Here, we report a draft reference assembly for the species generated from PacBio HiFi long-read and Omni-C chromatin-proximity sequencing data as part of the California Conservation Genomics Project (CCGP). Sequenced reads were assembled into 352 scaffolds totaling 1.16 Gb in length. Assembly metrics indicate a highly contiguous and complete assembly with a contig N50 of 7.8 Mb, scaffold N50 of 25.8 Mb, and BUSCO completeness score of 97.2%. Repetitive elements span 16.6% of the genome including nearly 90% of the W chromosome. Compared with high-quality assemblies from other members of the family Corvidae, the Steller’s jay genome contains a larger proportion of repetitive elements than 4 crow species (Corvus), but a lower proportion of repetitive elements than the California scrub-jay (Aphelocoma californica). This reference genome will serve as an essential resource for future studies on speciation, local adaptation, phylogeography, and conservation genetics in this species of significant biological interest.
Single-cell clonal tracing of glandular and circulating T cells identifies a population of CD9+ CD8+ T cells in primary Sjogren's syndrome
Authors: Chang Ling , Zheng Zihan , Xiao Fan , Zhou Yingbo , Zhong Bing , Ni Qingshan , Qian Can , Chen Chengshun , Che Tiantian , Zhou Yiwen , Zhao Zihua , Zou Qinghua , Li Jingyi , Lu Liwei , Zou Liyun , Wu Yuzhang 
Published: July 2023

Abstract
Primary Sjogren's syndrome (pSS) is a complex chronic autoimmune disease in which local tissue damage in exocrine glands is combined with broader systemic involvement across the body in tissues including the skin. These combined manifestations negatively impact patient health and quality of life. While studies have previously reported differences in immune cell composition in the peripheral blood of pSS patients relative to healthy control subjects, a detailed immune cell landscape of the damaged exocrine glands of these patients remains lacking. Through single-cell transcriptomics and repertoire sequencing of immune cells in paired peripheral blood samples and salivary gland biopsies, we present here a preliminary picture of adaptive immune response in pSS. We characterize a number of points of divergence between circulating and glandular immune responses that have been hitherto underappreciated, and identify a novel population of CD8+ CD9+ cells with tissue-residential properties that are highly enriched in the salivary glands of pSS patients. Through comparative analyses with other sequencing data, we also observe a potential connection between these cells and the tissue-resident memory cells found in cutaneous vasculitis lesions. Together, these results indicate a potential role for CD8+ CD9+ cells in mediating glandular and systemic effects associated with pSS and other autoimmune disorders.