bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of Point-of-Care versus Central Laboratory Testing of Electrolytes, Hemoglobin, and Bilirubin in Neonates
Authors: Choi Ha-young , Corder William , Tefera Eshetu , Abubakar Kabir M. 
Published: March 2021

Objective Electrolyte, hemoglobin, and bilirubin values are routinely reported with point-of-care (POC) testing for blood gases. Results are rapidly available and require a small blood volume. Yet, these results are underutilized due to noted discrepancies between central laboratory (CL) and POC testing. The study aimed to determine the correlation between POC and CL measurement of electrolytes, hemoglobin, and bilirubin in neonates.
Study Design Electrolyte, hemoglobin, and bilirubin results obtained from capillary blood over a 4-month period were analyzed. Each CL value was matched with a POC value from the same sample or another sample less than 1-hour apart. Agreement was determined by measuring the mean difference (MD) between paired samples with 95% limits of agreement (LOA) and Lin's concordance correlation (LCC).
Results There were 355-paired sodium/potassium, 139 paired hemoglobin, and 197 paired bilirubin values analyzed. POC sodium values were lower (133.5 ± 5.8 mmol/L) than CL (140.2 ± 5.8 mmol/L), p <0.00001 with poor agreement (LCC = 0.49; MD = 6.7; 95% LOA: −13.6 to 0.14). POC potassium values were lower (4.6 ± 0.98 mmol/L) than CL (4.98 ± 1.24mEq/L), p < 0.0001, but with better concordance and agreement. (LCC = 0.6; MD = 0.4; 95% LOA: −2.3 to 1.4). There were no differences in hemoglobin between POC (14.3 ± 3.2 g/dL) and CL (14.4 ± 3.1 g/dL), p = 0.2 with good LCC (0.93) and in bilirubin values between POC (6.0 ± 3.2 mg/dL) and CL (5.8 ± 3.0 mg/dL), MD = 0.18, and p = 0.07.
Conclusion POC Sodium values are lower than CL. POC potassium levels are also lower, but the differences may not be clinically important while hemoglobin and bilirubin levels are similar between POC and CL. As POC potassium, hemoglobin, and bilirubin levels closely reflect CL values, these results can be relied upon to make clinical judgments in neonates.
Key Points
Effect of Early Parent Participation Program on Physiological Stability in Preterm Infants: A Randomized Controlled Trial
Authors: Pillai Anish , Pournami Femitha , Prabhakar Jyothi , Nair PMC , Jain Naveen 
Published: March 2021

Objective This research aimed to study the impact of early parent participation program (EPPP) for preterm infants in neonatal intensive care unit (NICU) on physiological instability, breastmilk feeding rates, and discharge timing.
Study Design Families of 147 infants born between 28 and 33 weeks' gestation were randomized at birth to EPPP group or conventional care (CC). Families in the EPPP group were trained soon after admission by using a structured education program and encouraged to spend more time with their baby. Soon after enrolment (day of life 1 to 2), they would sequentially participate in daily NICU care processes such as orogastric tube feeding, nesting, oil massages, diaper changes, and daily weight checks. Families in the CC group would undergo the same after their infant was off parenteral nutrition and respiratory support. Proportion of infants having physiological instability (significant apnea, feeding intolerance, or needing investigation for sepsis) in two groups was compared.
Results There was a significant reduction in the proportion of infants with physiological instability (feeding intolerance) in the EPPP group (relative risk = 0.70 [0.52–0.94], p = 0.016). Infants in EPPP group had a trend toward higher breastmilk feeding rates at discharge (66 vs. 51%, p = 0.076).
Conclusion Very early parent participation was feasible in the NICU and led to decrease in physiological instability in preterm infants.
Key Points
Flow-mediated olfactory communication in honeybee swarms
Authors: Nguyen Dieu My T. , Iuzzolino Michael L. , Mankel Aaron , Bozek Katarzyna , Stephens Greg J. , Peleg Orit 
Published: March 2021

Significance
We show that bees locate their queen by performing a cascade of “scenting” events, where individual bees direct their pheromone signals by fanning their wings. The bees create a dynamic spatiotemporal network that recruits new broadcasting bees over time, as the pheromones travel a distance that is orders of magnitude the length of an individual. We develop high-throughput machine learning tools to identify the locations and timings of scenting events, and demonstrate that these events integrate into a global “map” that leads to the queen. We use these results to build an agent-based model that illustrates the advantage of the directional signaling in amplifying the pheromones, thus leading to an effective search and aggregation process.
Frontrunning the signals: As arbitrage between sophisticates
Authors: Akerlof George A. , Tong Hui 
Published: March 2021

Significance
This paper adds another dimension to the analysis of equilibria in markets with sophisticated traders. There is a rat race between sophisticated investors, who purchase assets in advance of receiving information. Thereby they avoid the loss due to waiting too long if the information turns out positive, as they also take advantage of the opportunity to dump if the information is negative. The rat race results in a special result: All of the transaction costs of the extra frontrunning are borne by the unsophisticated traders, with no gain to the sophisticates. This paper hence provides a specific instance of inefficient financial transactions and excessive rent seeking with gains to no one.
Mixing Sport and Religion in Les Landes (France)
Authors: Lamothe Mathilde 
Published: March 2021

Abstract
Les Landes is a ‘Département’ of south-western France, famous for its pine forests and endless beaches, part of the Nouvelle-Aquitaine region. Its identity is reflected in the importance given to sports such as rugby, cycling, basketball and the ‘Course Landaise’: a relatively non-violent form of bullfighting or bull-running. The value given to these sports is reflected in local chapels that celebrate the sports, through their décor, their sports trophies and their stained-glass windows.

Information
Adapted from ‘Chapter 10 Mixing Sport and Religion in the Landes Area of France’. In: Giacalone, F., Griffin, K. Local Identities and Transnational Cults within Europe. CABI, pp. 87-98.
© CAB International 2018
The effect of pulsed electric field on the intercellular structure of biological substances
Authors: Dróżdż T , Kiełbasa P , Nawara P , Miernik A 
Published: March 2021

Abstract
The article presents the effect of using pulsed electric field (PEF) to change the structure of selected biological substances. The process analysis was performed based on the micro, meso and macroscale effects. The effect of exposure of organic matter to the above-mentioned conditions is electroporation of the cell membrane, i.e. the formation or growth of native, already existing membrane pores. A biological cell behaves in a similar manner to a capacitor with a low dielectric constant. Therefore, when it is placed in the area under the influence of the electric field, the ions which are inside and outside the cell will begin to move in the direction of the applied electric field. Consequently, this leads to the accumulation of free, oppositely charged electric charges on both sides of the cell membrane. These charges can interact mutually and cause local pressure increases, which lead to changes in the thickness of the cell membrane and, consequently, to disruption of its continuity [1].
Analysis of the actual shape of the ESD generator pulse in relation to the normative requirements
Authors: Dróżdż T , Kiełbasa P , Nawara P , Miernik A 
Published: March 2021

Abstract
The article presents a new method of verification of ESD generators that meets the requirements of the standard. A new solution of dependent generators was taken into account on the basis of the obtained measurement result of the actual operation of the current generator at its output from the mathematical model. In the shaping created for the needs of simulation work integrated with the required reservations of the standard and the required errors counted and accuracy of operations.
Model and simulation of temperature changes in the buffer tank cooperating with the greenhouse heating system
Authors: Kurpaska S , Krakowiak-Bal A , Religa A 
Published: March 2021

Abstract
The paper presents a mathematical model describing the water temperature change in a buffer tank. The buffer tank is an integral part of modern greenhouse heating systems. The model includes heat fluxes from the heating boiler, heat fluxes transferred to the greenhouse interior and heat losses from the system (tank, pipes connecting the tank with the heating system). The differential method was used to determine the temperature value in the tank. Verification tests carried out in a real facility showed that the mean square error is 0.14K.
Optical properties of a polymer film substrate after laser ablation of transparent conductors
Authors: Pawlak R , Tomczyk M , Tabaka P , Walczak M 
Published: March 2021

Abstract
In the article some aspects of laser processing of conductive and transparent film of ITO (indium tin oxide) layer on PET (polyethylene terephthalate) substrate are discussed. The optical properties of polymeric substrates after laser ablation of an ITO layer was the main subject of these studies. Determination of conditions of the laser treatment without damage of polymer substrate was the purpose of presented investigation. The influence of a scanning speed, duration and energy of laser pulses on the results of interaction of nanosecond fiber laser on ITO film have been presented. Optical properties of PET substrate after laser ablation of ITO layer have been estimated by measurements of a spectral transmission coefficient and microscopic examinations. The process parameters window for completely ablation of ITO layer without damage of the polymer substrate was established.
Microwave defectoscopy – detection of composite delamination
Authors: Sobkiewicz P , Bieńkowski P , Błażejewski W 
Published: March 2021

Abstract
This paper is a short description of microwave non-destructive testing methods for composite material and presentation of a simple broadband microwave test method with an open-ended waveguide antenna for the purpose of non-destructive testing and quality evaluation of layered composite materials. Low-complexity experimental setup is shown. Research is aimed to determine the physical state of layered composite material especially in industrial pipelines. The overall applicability of the proposed system for detection purpose is demonstrated with use of experimental results. Suggestions for future researches is the need to develop more sophisticated waveguides systems to increase the scan resolution.
Spatial analysis of the electrical conductivity of the subsoil in various production technologies
Authors: Zagórda M , Kiełbasa P , Finduraand P , Korenko M 
Published: March 2021

Abstract
The cultivation technology that is used has a very large impact on changes in the physical and chemical properties of the soil. Depending on the machines used and doses of added fertilizers, the changes may concern shallow or deep soil layers. The most commonly used method to quickly determine spatial variability is the measurement of the electrical properties of the soil using the EM38 conductivity meter. The aim of the study was to analyse the spatial variability of the electrical conductivity of the subsoil in fields where traditional cultivation technology and precision farming technology were used. The research consisted of scanning the soil with the EM38 probe at 4 experimental sites and subjecting the results to spatial analysis in the GIS software. The analysis of the obtained results showed that the soil electromagnetic conductivity variability testing method identifies the actual soil variability very well. It should be noted, however, that the lack of additional classical validation measurements may lead to erroneous conclusions. Even with similar soils in the fields, there may be significant differences in mean values (103 - 190 mS · m−1) and variability (18 - 41%).
Performance improvement of biomass combustion-basedstove byimplementing internally air-distribution
Authors: Simanjuntak J P , Daryanto E , Baharuddin  , Tambunan B H 
Published: March 2021

Abstract
This research aimed to enhance the performance of biomass combustion-based stove. Thermal performances were assessed in terms of power output (Pout), specific fuel consumption (SFC), thermal efficiency (ηth), and burning rate (BR). These performances were expected to meet the minimum standards established by the Indonesian biomass stove alliance regarding the use of a healthy and energy-saving of biomass stove in Indonesia. The stove tested was an improved stove with an advantage on the air distributor by adding a component to administrate air combustion needed placed on the centre of the combustion zones. This is a very effective way to distribute air for combustion required where the air could reach all the fuel and the combustion product that occupy entire the combustion zones to ensure high combustion zone temperature. Coconut shell was used as feedstock. This biomass was found abundant in Indonesia and was widely used as heat source by burning it directly. The coconut shell was sized uniformly about 5 cm x 5 cm, dried by utilizing sun energy. To estimate the stove performances, several combustion tests was carried out where the air flow rate into the stove (Qa) and the amount of biomass fuel (mb) referred as the air–fuel ratio (A/F) were considered. The Water Boiling Test (WBT) was performed to assess this improved stove. Parameter required such as initial mass of coconut shell, the mass of residual ash, the initial mass of water, mass of water after boiling, and the time required to boil as well as combustion flame temperature were recorded and used to determine the performance of the improved stove studied.
Calculation and Analysis of Critical Heat Flux at LWR Passive Safety Design
Authors: Sudarmono  
Published: March 2021

Abstract
Critical heat flux (MDNBR) is one parameter for safe nuclear reactor operation. The magnitude of MDNBR is determined by local heat flux. When it is sufficiently high, it will cause a change in heat equilibrium and deteriorate nuclear fuel structure. To obtain assurance for nuclear reactor safety in safe criteria, Calculation and analysis of Critical heat flux of 630 MWe passive LWR was carried out at steady state and transient condition. The study used COBRA IV-I sub channel program coupled with critical heat flux correlation of EPRI-Columbia and W-3. The program models the core into 1/8 sections, each of which is divided into 83 sub-channels in radial direction and 40 nodes in axial direction, including 8 sub-channels of the hottest assembly. Normalized coast down flow and reactor power decay at initial phase is 10 second after loss of flow accident (LOFA) caused by anticipated primary pump failure. The effects of all input parameters, such as radial nodes, axial nodes, mix coefficient, velocity of coolant mass entering the core and power variation, have been identified. Evaluation of the results of safety calculation indicates that MDNBR, cladding temperature, and hot channel temperature are 1.83, 349°C and 2033°C, respectively. As the licensing limits for those parameters are 1.3, 1850°C, and 2840°C, it is concluded that the design of 630 MWe passive LWR has met the licensing criteria of safety. Modelling for safety analysis of passive LWR employs COBRA IV-I program. The results show that this program can be used to calculate hydraulic safety parameters with sub-channel model.
Analysis of Mixing Oil (Diala B with S2-ZUI) for Cooling Systems Used in Power Transformers
Authors: Hs Syafruddin , Supriyadi  , Pinem Maksum 
Published: March 2021

Abstract
The Diala B oil used as a cooling system for transformers is an old product from the manufacturer and is no longer being reproduced. To maintain the oil level in the transformer under normal conditions, S2-ZUI oil is added which is a new product from the manufacturer. Before being mixed with old oil, new oil is tested in the laboratory to meet the test parameters in the IEC 60296 standard. In this paper, several important parameters are measured such as viscosity, breakdown voltage, water content, acidity, density, flash point, pour point, corrosive sulfur, interfacial tension, dielectric dissipation factor, total acidity, and sludge. Besides, the properties of mixed oil are also tested in the laboratory before mixing them in the transformer. The results showed that the new oil (100% S2-ZUI) and the mixture of Diala B with S2-ZUI (50%: 50%) tested in the laboratory still meet the quality requirements according to IEC 60296 standards. Laboratory test results indicate that this new oil can be used as an addition to Diala B oil in transformers for cooling and insulation systems.
A study of the optical transmission spectra of polyester resin-based glass fabricated by open mold cast technique
Authors: Wahyuni F , Santjojo D J D H , Juswono U P , Santoso D R , Sakti S P 
Published: March 2021

Abstract
Polyester resin is a thermoset resin commonly used in the production of polymer composites. Polyester resin is a polymer matrix that is easily available and widely used by the general public and industry. Besides, this resin is cheap, has unique characteristics, namely that it can be made rigid and flexible. This research aimed to investigate the optical transmission spectra of polyester resin-based glass fabricated by open mold casting technique with different MEKPO or methyl ethyl ketone peroxide concentrations in the visible region. This research used Yukalac C 108B polyester resin. Catalyst MEKPO was added with three variations, 1%, 2%, and 5%. The prepared mixture was then set at 30 Celsius degree and 1000 RPM for five minutes by a magnetic stirrer. The optical transmission spectra of the glass were measured using optical emission spectroscopy. The result shows that the optical spectra of this polyester resin-based glass possess higher transmission in the region at 650 nm to 700 nm and the amount of catalyst that can produce polyester resin glass material by open mold cast technique with higher optical properties at 1% catalyst composition.
Shallow One-Dimensional Shear Wave Velocity Structure in Lhokseumawe, Aceh-Indonesia
Authors: Banyunegoro V. H. , Firdausi R. , Muksin U. , Idris Y. 
Published: March 2021

Abstract
A series of microtremor array measurements, consisted by thirty-one sites, has been designed and conducted in Lhokseumawe. There were three lines of microtremor measurement consisting triangular seismic array for each point to study shear wave velocity model. A Spatial Auto Correlation method was applied in order to reveal the 1D velocity structure beneath the three lines at each measurement point. The analysis successfully revealed one dimensional shear wave velocity model down to 30 meters depth. The results show that the highest shear wave velocity of 639 m/s at depth of 30 m while the lowest value of 45 m/s at depth of 5 m. The results indicate that 12 out of 13 sites have low shear wave velocity with a range between 100 to 200 m/s. Low velocity structures are mainly located in Banda Sakti subdistrict. The areas with low shear wave velocity are associated with less compact sediment material which are mostly located in paddy field and ponds areas.
The Development of High School Physics Textbooks Based on Batak Culture
Authors: Lubis Syarief Saadillah , Sahyar Sahyar , Derlina  
Published: March 2021

Abstract
The purpose of this study is to develop High School physics Textbook based on Batak Culture with valid, practical and effective categories. This study is Research and Development (R&D) using 4-D models covering the define, design, develop, and stages disseminate. Physics Textbook developed in the form of teacher’s book, student’s books, study test results. Batak Cultural aspects are integrated into the phases of the Cooperative Learning Model. The student discussion activities were conducted with batak cultural interaction pattern, namely Dalihan Natolu as batak socio-cultural system in solving problems raised from batak cultural illustration. Validity criteria were obtained through expert assessment of Textbook, practicality and effectiveness obtained through small group trials and limited class trials. The subjects in the study were students of grade XI MIA I SMA Negeri 1 Kotanopan. The results showed that High School Physics Textbook based on Batak Culture have met valid, practical and effective criteria.
The Effect of Road Network and the Freight Transport Operation to the Development of the Region and Welfare of the Society in Langkat Regency
Authors: Tarigan Harimin , Rahim Matondang A. , Lubis Suwardi , Sirojuzilam  
Published: March 2021

Abstract
This study aims to determine the effect of the road network and the implementation of freight transportation on regional development and the community welfare in Langkat Regency. This type of research is associative and explanatory research whose data are obtained through surveys. The study population was drivers of motor vehicles transporting goods in Langkat Regency. The number of samples is 305 respondents by means of probability sampling and data analysis techniques using Structural Equation Modelling (SEM). The results showed that the road network variables did not significantly influence the community welfare, but the road network had a significant and positive effect on the community welfare through the development of the Langkat Regency. The implementation of freight transportation has a significant and positive effect on the community welfare partially, directly and through the development of the Langkat Regency. Regional development has a significant and positive effect on the community welfare of Langkat Regency.
The Analysis of Natural Science Virtual Laboratory Media
Authors: Adawiyah R , Simorangkir M , Nurfajriani  
Published: March 2021

Abstract
This research was aimed to analyzed the virtual labroratory media which take a part as supporting the natural science learning in Junior High School. The data analyze techniques which used in small research were both descriptive analyze and presentation. Instrument which used were media instrument analysis questionnaire based on BSNP (National Education Standards Board) which consists of material aspect, view aspect, programming aspect, and language aspect. The result of analysis based on BSNP Virtual Laboratory Media in Junior High School showed : material aspect 54,28% (good enough), View aspect 55,55% (good enough), Programming aspect 50% (good enough) and language aspect 60% (good enough )
Detection of the cooking oil aroma by using a gas sensor in an electronic nose system
Authors: Sihombing Yuan Alfinsyah , Alfarandi Ritonga M 
Published: March 2021

Abstract
Cooking oil is a food ingredient that is widely used for frying food. When cooking oil is used over and over again, cooking oil becomes dangerous for consumption. In general, cooking oil that is widely used by the community is simple-packaged cooking oil and bulk cooking oil. The design of a cooking oil aroma detector is conducted to distinguish the aromas of cooking oil that is consumed by the community. This tool is made by using the TGS2611 gas sensor as an electronic nose system. The electronic nose system can detect the aroma of cooking oil through the air. The aroma from the sample room to the sensor room is flowed by using a fan. The aroma stimulus captured by the sensor array is a signal response that increases the electric voltage. The average output voltage of the gas sensor produced is 172.3 mV, 204.8 mV, and 181.4 mV for samples of simple-packaged cooking oil, bulk cooking oil, and used cooking oil, respectively. These results indicate that bulk cooking oil has the highest response. While the simple-packaged cooking oil has the lowest one.