bluuebunny/crossref_metadata_2025_split huggingface dataset:
Plate Deflection Analysis with Different Mesh
Authors: Alie M Z M , Juswan  , Paroka D , Rakib M R S 
Published: July 2020

Abstract
Ocean structures like a jacket, jack-up, and other floating structures consist of many structural elements to support and strengthen from internal and external loads. The structural element, like a beam, plate, and the stiffened plate, has a significant influence on the ultimate strength of the global structure. So that all these elements components should be evaluated and analyzed for the local and global of the structural strength. The objective of the present study is to analyze the plate deflection due to different mesh dimension. The plate is modeled by shell elements with different mesh dimensions; those are 8 x 8 and 16 x 16. The clamped edges as boundary conditions are applied to all sides of the plated. The applied load is located at the center of the plate. The Finite Element Method is used to analyze the plate deflection with different mesh dimensions under axial load acts at the center of the plate. The result obtained by FE Method is therefore compared to the analytical solution. It is found that the plate deflection obtained by the FE method is in good agreement with the analytical solution, and the behavior of the plate is also presented in this study.
NC3 CPP Jacket Launching Analysis by Using Numerical Simulation (Case Study of NC3 Gas Field, SK316 Block Bintulu Sarawak Malaysia)
Authors: M Saeful M H , Juswan  , Paroka D 
Published: July 2020

Abstract
In most relatively shallow waters, fixed platforms are the optimum economical choice. One of the important aspects of offshore fixed platform design is their installation procedure. Among the several conditions during installation, launching is probably the most critical. This operation has to be modelled and examined carefully in order to insure safe separation of jacket from barge. Sensitivity studies are performed to clarify the influences of the initial condition of launch barge to the jacket launch process. Launch analysis is carried out by using numerical simulation methods that supported by MOSES software. Jacket structure and launch barge are modelled on SACS and MOSES respectively. The jacket structure is laid on top of barge with the position of the top of jacket in the stern launch barge. Simulation results on the base case with a barge initial trim is 3.5° and a draft at midship is 6.1 m show that the jacket launch process can take place safely. Sensitivity analysis shows that the greater the trim angle and the initial draft of the barge the shorter the sliding speed and the reaction of the rocker arm decreases. While changes in the LCG jacket and the additional weight of the jacket have a significant effect on the bottom clearance and jacket free floating conditions after being separated from the launch barge.
Analysis of the Ship and Cargo Service Facilities at the Local Port of Sorong
Authors: Dewa S , Idrus M , Chairunnisa A S , Djafar W , Djalante A H , Karyadi A 
Published: July 2020

Abstract
Sorong local port is one of the ports in Sorong City that provides services for pioneer ships, machine-sail ships, and fast passenger ship for tourists. Currently, mooring locations for the pioneer ships and machine-sail ships are nearby the mooring location of fast passenger ships. This condition affects the safety and amenities of passengers, mainly when the loading and unloading of cargoes and passengers take place at the same time. Besides, their ave not been proper supporting facilities such as passenger terminal, warehouse, and parking area. Therefore, this research aims to analyze the performance of existing facilities and the required capacity of supporting facilities for service improvement purposes. Some methods are being applied to assess the performance of berth (Berth Occupancy Ratio or BOR), passenger terminal, and warehouse (Shed Occupancy Ratio or SOR). The result shows that the ship calls grow by 13.33 % annually, where the highest number of visiting ships is the fast passenger ship (47.62%). Current BOR of Sorong local port can reach up to 77.88 %, which is higher than the standard BOR 70 %, while SOR of the warehouse is 20.98 %, which indicates that the utility of the warehouse is low. In the meantime, the required area for the passenger terminal is 617 m2.
An Improvement for the Design of the Small Fiberglass Seaweed Farmers Boat to Minimize the Sinkable Risk
Authors: Mustafa W , Asri S , Firmansyah M R , Fachruddin F , Apelaby G 
Published: July 2020

Abstract
The boat plays significant role in supporting the household business scale for the seaweed farmers. Their current boat are made from fiberglass reinforced plastic (FRP) which is lighter then the wooden boat. However, based on the field survey in the seaweed farmers boats in the area of Pattontongan village, Jeneponto regency, their boat is susceptible for sinking if any leak is occur on the boat body since they are not designed with the reserved buoyancy system. Geometry and the reserved buoyancy of their boat become the serious issues. Hence, an improved design for their boat is need to be developed with the criteria of the boat capacity and safety. This paper discusses two of the improved design of the boats which are ND1 (design 1) and ND2 (design 2). The result shows an improved design with the additional of the boat reserved buoyancy while considering the boat capacity. The parameter of the boat design is the relationship between the boat reserved buoyancy volume and the boat weight which is called anti sinking ratio. The anti sinking ratio for ND1 with the boat length 6 meters, width 0.85 meter, and height 0.5 meter is ≥ 1. The ratio is obtained in the condition of the boat reserved buoyancy of 0.066m3 and the boat carrying capacity of 0.969m3. Meanwhile, the anti sinking ratio for ND2 with the boat length of 4.2 meters, width 1 meter and height 0.5 meter is ≥ 1 in the condition of the boat reserved buoyancy of 0.055m3 and the boat carrying capacity of 0.936m3.
Modeling Origin Destination Matrix in the Inter Island Cluster of North Liukang Using Gravity Model
Authors: Chairunnisa A S , Asri S , Bochary L , Firmansyah M R , Zulkifli  
Published: July 2020

Abstract
Trip Distribution is one of the step in the Four-Step Transportation Planning Model. The modelling of inter-zone trip patterns considered several things as the effect of the inter-zone accessibility network system level as well as each-zone production and attraction level. The trip distribution model that used in this study is gravity model (GR) which is classified in synthetic method group. The aims of this study is to estimate the distribution trip model into origin-destination matrix form in both the passengers and cargo trip flow at archipelago North Liukang Tupabbiring sub-district region, Pangkep Regency, South Sulawesi. Determination the number of trip is using Production Constraint Gravity Models with exponential barrier function to estimate inter-island traffic distance. The results showed that the total number of passenger trip from the urban capital to Pangkajene Regency was around 137 passengers per day and the inter-island trip was around 41 passengers per day while the total of cargo trip from the capital sub-district to the city of Pangkajene was around 0.96 tons per day and the inter-islands trip was around 0.28 tons. The result of this distribution trip matrix will be used as a basis for capacity planning of inter-island passenger transport fleets in the North Liukang Tupabbiring sub-district.
Fuzzy Logic Method as Determining of Internet Network VSAT performance in Black Spot Region at District of Enrekang
Authors: Buwarda S , Rasyid K H , Muhlis  , Hidayat M 
Published: July 2020

Abstract
Internet networks using VSAT have some disadvantages caused by the relative distance of the satellite and the earth which is a significant propagation delay. To determine the optimal quality of VSAT internet network, a study of VSAT internet network performance was performed using Fuzzy Logic method, based on the parameters of bandwidth, delay, packet loss, and throughput conducted for 2 days in the morning, afternoon and night in 2 villages in Enrekang Regency, namely Singki Village and Tindalun Village. Retrieval of data parameters at these locations using a wireshark application software which is then inputted into fuzzy logic so as to produce three categories of performance, good or sufficient, and bad network quality. It is said that performance is good if the results on fuzzy logic are 0, sufficient performance compilation of results from fuzzy logic is 0.5 and performance is poor if the results of fuzzy logic are valued 1. The VSAT internet network requests optimal compilation parameters of network quality such as 6 mbps bandwidth, delays below 1,000 ms, packet loss less than 50% and throughput above 50 kbps which has been designed in fuzzy logic. From the results of the study, obtained a value for the village of Tindalun 0.5 which means enough. Whereas, for performance in Singki Village, 2 different values were obtained, while compilation using Wifi was valued at 0.5, which was sufficient, and compilation using WireLAN was 0 which meant good.
Parking Slot Detection Using GLCM and Similarity Measure
Authors: Irfan A P , Nur N , Wajidi F 
Published: July 2020

Abstract
Increasing the number of vehicles, especially cars, raises some quite complicated problems. One of them is parking availability. Searching for empty parking slots is often be problematic related to time efficiency issues. In this paper, we proposed the detection of parking slots using GLCM and similarity measure. There are four main step that using in this paper. The first step is getROI, then feature extraction using GLCM method. For the classification step, similarity measure with Euclidean distance is used and the last step we calculate the accuracy. Detection of parking slots using gray level co-occurrence matrices and similarity measure is pretty good, marked by an average accuracy rate that is above 95% in all three datasets with different weather.
The mechanical and corrosion properties of WCCo–Al coatings formed on AA2024 using the HVOF method
Authors: Akkaş Mehmet 
Published: July 2020

Abstract
This paper investigates the microstructural, mechanical, and electrical-conductivity properties of WCCo–Al composite coatings produced on the Al alloy AA2024 using the high-velocity oxygen fuel (HVOF) thermal-spray method. In an experimental study, the amount of WCCo added to Al powders was varied between 25, 50, 75, and 100 wt%. The AA2024 used as the substrate material was cleaned in acetone solution and then subjected to a sanding process using Al2O3 sand that had a grain size of 24–35 mesh for improved bonding of the coating layer. Nitrogen was used as the powder-carrier gas. After the coating process, the substrates were cooled using high-pressure air jets. The coated samples were then compared in terms of their microstructure, phase composition, microhardness, electrical conductivity, and wear properties. The microstructure, phase composition, and surfaces of the coatings after abrasion were examined using a scanning electron microscope (SEM) and an x-ray diffractogram (XRD). The XRD results showed that the WCCo–Al coating layer was composed of Al, Al0.52Co0.48, Al30Mg23, Al0.47Co0.53, MgCuAl2, WCu2Al8, AlCo, Al12W, and BNi2 phases. The addition of WCCo increased the hardness of the coatings. For instance, the highest hardness value was measured as 1,335 HV0.2 in the coating produced using 100% WCCo. The amount of WCCo in the powder also affected the microstructure, phase composition, and hardness of the coatings. Moreover, the addition of WCCo lowered the electrical conductivity, wear rates, and friction coefficients of the coatings. In indentation tests, the hardness values of the coatings were generally found to increase with increasing applied load. In corrosion tests, the corrosion resistance of the coatings was observed to increase as the amount of WCCo in the coating layer increased. The highest peak depth was 36.94 μm in the sample coated with 100% Al, and the lowest peak depth was 6.82 μm in the sample coated with 100% WCCo. The coated materials had outstanding tribological performance compared to the uncoated ones. The increase in wear resistance provided by the coating was caused by a large amount of dispersed WC and Co.
Selecting Controls for Minimizing SARS-CoV-2 Aerosol Transmission in Workplaces and Conserving Respiratory Protective Equipment Supplies
Authors: Brosseau Lisa M , Rosen Jonathan , Harrison Robert 
Published: July 2020

Abstract
With growing evidence of inhalation of small infectious particles as an important mode of transmission for SARS-CoV-2, workplace risk assessments should focus on eliminating or minimizing such exposures by applying the hierarchy of controls. We adapt a control banding model for aerosol-transmissible infectious disease pandemic planning to encourage the use of source and pathway controls before receptor controls (personal protective equipment). Built on the recognition that aerosol-transmissible organisms are likely to exhibit a dose–response function, such that higher exposures result from longer contact times or higher air concentrations, this control banding model offers a systematic method for identifying a set of source and pathway controls that could eliminate or reduce the need for receptor controls. We describe several examples for workers at high risk of exposure in essential or return to work categories. The goal of using control banding for such workers is to develop effective infection and disease prevention programs and conserve personal protective equipment.
Eculizumab, SARS-CoV-2 and atypical hemolytic uremic syndrome
Authors: Trimarchi Hernán , Gianserra Raquel , Lampo Mauro , Monkowski Matias , Lodolo Jimena 
Published: July 2020

Abstract
Atypical hemolytic uremic syndrome (aHUS) treatment consists of eculizumab. Severe acute respiratory syndrome coronavirus 2 causes severe pneumonia and endothelial injury that leads to a prothrombotic state that may be complicated by macrovascular and microvascular thrombosis. Complement activation is thought to contribute to endothelial injury and there are at least seven ongoing clinical trials testing six different anti-complement strategies for coronavirus disease 2019 (COVID-19), including eculizumab. We herein report on a kidney transplant patient with aHUS on chronic eculizumab therapy that developed severe COVID-19 despite eculizumab administration early in the course of the disease. Although eculizumab was unable to prevent the development of severe endothelial cell injury, as assessed by increasing D-dimer levels from 292 to 10 586 ng/mL, the patient eventually recovered following dexamethasone and convalescent plasma administration.
The validity of Dutch health claims data for identifying patients with chronic kidney disease: a hospital-based study in the Netherlands
Authors: van Oosten Manon J M , Brohet Richard M , Logtenberg Susan J J , Kramer Anneke , Dikkeschei Lambert D , Hemmelder Marc H , Bilo Henk J G , Jager Kitty J , Stel Vianda S 
Published: July 2020

Abstract

Background
Health claims data may be an efficient and easily accessible source to study chronic kidney disease (CKD) prevalence in a nationwide population. Our aim was to study Dutch claims data for their ability to identify CKD patients in different subgroups.

Methods
From a laboratory database, we selected 24 895 adults with at least one creatinine measurement in 2014 ordered at an outpatient clinic. Of these, 15 805 had ≥2 creatinine measurements at least 3 months apart and could be assessed for the chronicity criterion. We estimated the validity of a claim-based diagnosis of CKD and advanced CKD. The estimated glomerular filtration rate (eGFR)-based definitions for CKD (eGFR &lt; 60 mL/min/1.73 m2) and advanced CKD (eGFR &lt; 30 mL/min/1.73 m2) satisfying and not satisfying the chronicity criterion served as reference group. Analyses were stratified by age and sex.

Results
In general, sensitivity of claims data was highest in the population with the chronicity criterion as reference group. Sensitivity was higher in advanced CKD patients than in CKD patients {51% [95% confidence interval (CI) 47–56%] versus 27% [95% CI 25–28%]}. Furthermore, sensitivity was higher in young versus elderly patients. In patients with advanced CKD, sensitivity was 72% (95% CI 62–83%) for patients aged 20–59 years and 43% (95% CI 38–49%) in patients ≥75 years. The specificity of CKD and advanced CKD was ≥99%. Positive predictive values ranged from 72% to 99% and negative predictive values ranged from 40% to 100%.

Conclusion
When using health claims data for the estimation of CKD prevalence, it is important to take into account the characteristics of the population at hand. The younger the subjects and the more advanced the stage of CKD the higher the sensitivity of such data. Understanding which patients are selected using health claims data is crucial for a correct interpretation of study results.
Anthropogenic effects on the physiology and behaviour of chacma baboons in the Cape Peninsula of South Africa
Authors: Chowdhury Shahrina , Brown Janine , Swedell Larissa 
Published: July 2020

AbstractAs animals increasingly occupy habitats in proximity to humans, with home ranges a mosaic of natural and anthropogenic landscapes, it becomes imperative from a conservation perspective to understand the impacts of human activities on wildlife. Many non-human primates share habitats with humans, an ability stemming largely from shared ecological needs due to our close evolutionary relationship. Such proximity, however, is often accompanied by direct conflict between humans and wildlife, leading to higher stress levels, injuries, mortality and behavioural changes, with detrimental effects on long-term health and fitness. Glucocorticoid (GC) hormones, which are released in response to ecological and social challenges, are increasingly employed to understand responses to anthropogenic disturbance. Here we investigate physiological and behavioural responses of female chacma baboons (Papio ursinus) to variation in spatial overlap and conflict with humans in their natural home range. The baboons resided in the Tokai Section of Table Mountain National Park in the Cape Peninsula of South Africa, where their home range included four types of habitats: protected, suburban, agricultural and mosaic areas. We studied the largest group of baboons in Tokai (70 individuals) and examined the effects of ranging in these different habitats on the faecal GCs and behaviour of all adult females in the troop (N = 16). We found time spent ranging in more anthropogenic habitats to be associated with higher levels of GCs, more aggression, less time socializing and shorter grooming bouts. Self-directed behaviour, however, varied and did not necessarily reflect physiological measures of stress. Taken together, the results of this study highlight the risks associated with ranging in anthropogenic environments and point to the need for a multifaceted approach to studying the negative impacts of human activities on animals so as to better inform conservation practices.
Diversity of Bee Assemblage (Family Apidae) in Natural and Agriculturally Intensified Ecosystems in Uruguay
Authors: Santos Estela , Daners Gloria , Morelli Enrique , Galván Guillermo A 
Published: July 2020

AbstractBees (Family Apidae) hold a key role as pollinators in a wide range of angiosperm communities. South America suffered strong modifications during the last decade due to increasing anthropic activities and the expansion of agricultural areas, particularly the boom of soybean. The goal of this research was to know the current diversity of bees in South and Low Littoral regions in Uruguay. Specimens were collected in the seasons 2015–2016 and 2016–2017 on natural meadows, cultivated grasslands, soybean fields, among others flowering communities. Collected specimens were classified following taxonomic keys. Forty-five bee species or taxa were distinguished belonging to the subfamilies Megachilinae (11), Apinae (22), Halictinae (7), Colletinae (2), and Andreninae (3). Most taxa were classified up to genus and 14 to species level. Bee diversity was higher for the South region, with traditional agriculture and rangelands, than that of the Low Littoral region where an increasing agricultural land use took place during the last decade, particularly soybean. In addition, this research aimed to study the presence of native bees and the introduced Apis mellifera (Apinae) in a soybean field at four transects located at 0, 50, 100, and 200 m from the crop border in both seasons. Native bee species were only present at 0 and 50 m, pointing to the relevance of natural edge plant communities for their preservation. This is the first survey on native bee diversity in Uruguay to be regarded as a baseline and the setup of conservation strategies.
Effect of sugar-sweetened beverages on oral health: a systematic review and meta-analysis
Authors: Valenzuela Maria Josefina , Waterhouse Beverley , Aggarwal Vishal R , Bloor Karen , Doran Tim 
Published: July 2020

Abstract

Background
The impact of consumption of sugar-sweetened beverages (SSB) on health outcomes such as obesity have been studied extensively, but oral health has been relatively neglected. This study aims to assess the association between SSB consumption and dental caries and erosion.

Methods
Systematic review of observational studies. Search strategy applied to Medline, Embase, Cochrane Library, SciELO, LILACS, OpenGrey and HMIC. The risk of bias was assessed using the NIH Quality Assessment Tool for Observational Cross-Sectional Studies and evidence certainty using Grading of Recommendation Assessment Development and Evaluation. Relationships between SSB consumption and caries and erosion were estimated using random-effects model meta- and dose–response analyses.

Results
A total of 38 cross-sectional studies were included, of which 26 were rated as high quality. Comparing moderate-to-low consumption, there was significantly increased risk of both caries [OR = 1.57, 95% CI: 1.28–1.92; decayed, missing and filled teeth weighted mean differences (DMFT WMD) = 0.82, 95% CI: 0.38–1.26] and erosion (OR = 1.43, 95% CI: 1.01–2.03). Comparing high-to-moderate consumption, there was further increased risk of caries (OR = 1.53, 95% CI: 1.17–1.99; DMFT WMD = 1.16, 95% CI: −0.59–2.91) and erosion (OR = 3.09, 95% CI: 1.37–6.97). A dose–response gradient and high certainty of evidence was observed for caries.

Conclusions
Increasing SSB consumption is associated with increased risk of dental caries and erosion. Studies were cross-sectional, hence temporality could not be established, but the positive dose–response suggests this relationship is likely to be causal. These findings illustrate the potential benefits to oral health of policies that reduce SSB consumption, including sugar taxation.