bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimating the performance efficiency of ERP system with the relational database in a heterogenic environment
Authors: Dorożyński Janusz , Przepiórka Maciej 
Published: April 2019

The article presents a study of the performance of a commercial ERP system, operating
in the 2W model with a relational database installed on the IBM mainframe platform, as well as business logic and presentation server installed on the Windows Server platform.
The study was carried out in accordance with the developed methodology by means of recording the time of performing system functions indicated in the own document “Time-use profile of the ERP system under test”. Consulting sessions were also held.
Based on the results of the research, a recommendation was made to migrate production relational databases to the Windows Server environment.
Keywords: IT, relational database, ERP, MRPII, three-layer architecture, application performance.
Deanonymization of bitcoin cryptocurrency users
Authors: Rodwald Przemysław , Sobolewski Witold , Rodwald Maja 
Published: April 2019

The aim of this article is to show how one can deanonymize users of cryptocurrencies. To this end the most popular of the cryptocurrencies, i.e. bitcoin is used as an example. At the beginning, the basic concepts about cryptocurrencies are presented. Afterwards, our approach to systematize the types of transactions existing in the blockchain is proposed. This part is enriched with the graphs showing their quantitative occurrence in the blockchain. The main part of this article presents the heuristics use to deanonymize users. A few practical pieces of advice for implementation of the presented heuristics in the real deanonymizing system are included. Then the real case studies are introduced. They are supported with comments based on the experience from court trials carried out by the authors. The final part contains legal regulations and existing tools supporting the deanonymizing process.
Keywords: deanonymization, cryptocurrency, bitcoin.
Analysis of electrical energy consumption on the example of a selected building
Authors: Suproniuk Marek , Paś Jacek 
Published: April 2019

In Poland, approx. 95% of electrical energy is generated in a coal combustion process. Saving electrical energy gives economic effects related to the smaller fees and contributes to protection of the natural environment. Additionally, saving electrical energy should translate into our health, lesser degradation of the natural environment, or less consumption of natural deposits of energy. The paper has presented the issues related to analysis of energy consumption in a selected building object. The analyse includes the following issues − document analysis related to the building’s power, energy distribution, and power consumption of individual load and time regimes of work of receivers in the object and analysis of electrical energy which has been measured in a building.
Keywords: electricity quality parameters measurement, higher harmonics of current/voltage.
Influence of tensile softening of concrete on crack development and failure in concrete and reinforced concrete beams
Authors: Słowik Marta 
Published: April 2019

In the paper, the own test results were presented. The experimental investigation was focused at determining the cracking and load capacity of beams made of concrete. The beams were characterized by different longitudinal reinforcement ratio from zero — plain concrete beams, through low ratio 0.12% — slightly reinforced concrete beams, middle ratio 0.9% — typical reinforced concrete beams, up to the ratios 1.3% and 1.8% — higher reinforced concrete beams. On the basis of the performed experiments and the results of numerical calculations, the process of crack’s formation and crack’s development in plain concrete, slightly reinforced concrete and reinforced concrete beams with different reinforcement ratio was described. When discussing cracking process in the beams, the contribution of strain softening of tensile concrete in the microcracked zone on the character of beams’ failure was analysed as well.
Keywords: civil engineering, concrete and reinforced concrete members, cracking and load capacity.
Syndicats et responsabilité sociétale de l’entreprise : analyse longitudinale des stratégies des Confédérations françaises
Authors: Havard Christelle , Sobczak André 
Published: April 2019

Au cours des vingt dernières années, la responsabilité sociétale de l’entreprise (RSE) est devenue une préoccupation majeure du débat public et de la recherche en sciences sociales. La multiplication des démarches RSE a nécessairement un impact sur les organisations syndicales qui sont amenés à s’adapter et à réagir ou qui peuvent se saisir des opportunités offertes par la RSE. L’objectif de cet article est d’apporter un éclairage sur la manière dont les stratégies des centrales syndicales en matière de RSE se construisent.Deux types de travaux sont mobilisés pour analyser ces stratégies et la manière dont elles se sont construites : les travaux de Boxall (2008) en relations industrielles et ceux de Whittington (2006) du courant de la « stratégie comme pratique » (strategy as practice, en anglais). Une grille d’analyse est proposée pour étudier la construction de la stratégie en matière de RSE de cinq Confédérations syndicales représentatives en France au cours de la période 2006-2016.Les résultats de l’étude longitudinale révèlent trois catégories de stratégies : 1- des Confédérations syndicales qui ont formulé assez tôt une stratégie favorable à la RSE ; 2- des Confédérations qui se sont engagés dans une stratégie plus récemment ; et, 3- une Confédération qui reste critique à l’égard de la RSE. Les éléments déterminants de ces stratégies sont, d’une part, les relations externes que ces Confédérations ont nouées avec les ONG et les pouvoirs publics, et, d’autre part, les ressources affectées à la RSE et les actions engagées. Sur le plan théorique, l’article permet d’élargir le potentiel des courants théoriques retenus et d’ouvrir de futures perspectives de recherche. Sur le plan pratique, il permet de mieux comprendre ces stratégies et, le cas échéant, de mieux s’y adapter, voire de les influencer.
Obstetric and perinatal outcomes of dizygotic twin pregnancies resulting from in vitro fertilization versus spontaneous conception: a retrospective study
Authors: Chen Hua , Wan Ying , Xi Haitao , Su Weijue , Cheng Jing , Zhu Chunfang , Lv Jieqiang , Wu Xinmei , Zhao Junzhao 
Published: April 2019

This study was designed to to assess perinatal and neonatal outcomes of dizygotic twin pregnancies conceived naturally or by in vitro fertilization (IVF). After strict selection, the study included 470 dizygotic twin pregnancies. There were 249 resulting from IVF treatments and 221 conceiving spontaneously. After adjusting maternal age and primiparity, the results showed that there were no significant differences between the two groups (P > 0.05) in terms of maternal antenatal complications and neonatal outcomes. In conclusion, our study does not reveal increased risks for pregnancy-related complications and adverse neonatal outcomes in dizygotic twin pregnancies following IVF treatments. With these fundamental data, this study could provide a reference for perinatal care and clinical assisted reproductive technology (ART) treatment and help to inform infertile parents about the potential risks of IVF treatments.
Microfluidic chip combined with magnetic-activated cell sorting technology for tumor antigen-independent sorting of circulating hepatocellular carcinoma cells
Authors: Wang Xuebin , Sun Liying , Zhang Haiming , Wei Lin , Qu Wei , Zeng Zhigui , Liu Ying , Zhu Zhijun 
Published: April 2019

Purpose
We aimed to generate a capture platform that integrates a deterministic lateral displacement (DLD) microfluidic structure with magnetic-activated cell sorting (MACS) technology for miniaturized, efficient, tumor antigen-independent circulating tumor cell (CTC) separation.

Methods
The microfluidic structure was based on the theory of DLD and was designed to remove most red blood cells and platelets. Whole Blood CD45 MicroBeads and a MACS separator were then used to remove bead-labeled white blood cells. We established HepG2 human liver cancer cells overexpressing green fluorescent protein by lentiviral transfection to simulate CTCs in blood, and these cells were then used to determine the CTC isolation efficiency of the device. The performance and clinical value of our platform were evaluated by comparison with the Abnova CytoQuest™ CR system in the separating of blood samples from 12 hepatocellular carcinoma patients undergoing liver transplantation in a clinical follow-up experiment. The isolated cells were stained and analyzed by confocal laser scanning microscopy.

Results
Using our integrated platform at the optimal flow rates for the specimen (60 µl/min) and buffer (100 µl/min per chip), we achieved an CTC yield of 85.1% ± 3.2%. In our follow-up of metastatic patients, CTCs that underwent epithelial–mesenchymal transition were found. These CTCs were missed by the CytoQuest™ CR bulk sorting approach, whereas our platform displayed increased sensitivity to EpCAMlow CTCs.

Conclusions
Our platform, which integrates microfluidic and MACS technology, is an attractive method for high-efficiency CTC isolation regardless of surface epitopes.
Health Hazards Associated with Operations of Medium-Scale Dual Purpose Kerosene Vendors Using Motorized Pumps with Aboveground Storage Tanks in Ilorin Metropolis, Kwara State, Nigeria
Authors: Ibrahim Moshood Liman , Sawyerr Henry Olawale , Isiaku Aliyu Nda 
Published: April 2019

Introduction: The use of Dual Purpose Kerosene (DPK) as a means of cooking and power supply in Nigeria cannot be overemphasized especially among the over 70% of Nigerians living in poverty. It is a highly hazardous product and the adverse environmental health effects from the use of this product remain widespread. Thus, due to the scarcity of epidemiological studies, potential harm and risks of kerosene, the present study was carried out.
Aim and Objectives: This study aimed at evaluating the environmental health hazards associated with operations of medium-scale DPK vendors using motorized pumps with aboveground storage tanks (ASTs) in Ilorin metropolis and as such estimate the numbers of medium-scale DPK vendors, identify their locations using the Geographic Information System (GIS) tool and assess the likely environmental health hazards associated with the operations of these DPK vendors.
Methodology: Purposive sampling technique was deployed in this study and data was collected using a structured questionnaire and handheld Germin (GPSmap® 78) GPS.
Results: The study revealed that about 76 medium-scale DPK vendors with ASTs are found in Ilorin metropolis with 48(63.2%) found in Ilorin West LGA, 18(23.6%) in Ilorin South and 10(13.2%) in Ilorin East. Over 80% of the DPK vendors have their ASTs in close proximity to major roads, 68.4% in close proximity to residential buildings, 30.3% in close proximity to a water source and 7% reported the incidence of kerosene spillage. The test of association between the operations of medium-scale DPK vendors and associated environmental health hazards was found to be significant at (p<0.05); while ArcGIS 10.4 software was employed in showing the spatial distribution of the DPK vendors within Ilorin metropolis.
Conclusion: Conclusively, this study shows the activities of the DPK vendors causes high environmental health hazards which directly impact both environmental health and health of the population
Recommendations: Stringent enforcement activities by the Environmental Health Officers (EHO's) on adherence to stipulated setbacks from buildings and major roads; massive enlightenment on the various health hazards associated with DPK vendors operations; and government, through the state assembly, should enact laws to curb the uncontrolled proliferation of medium-scale DPK vendors in Ilorin metropolis and storage of toxic and flammable substances.
Antidiabetic and Haematological Effects of Chrysophyllum albidum Supplemented Diet on Streptozotocin Induced Diabetic Rats
Authors: Ibrahim H. O. , Osilesi O. , Adebawo O. O. , Onajobi F. D. , Karigidi K. O. , Muhammad L. B. 
Published: April 2019

Background: The use of food in the management of diseases is an established art of science. It is essentially important in the management of chronic diseases such as diabetes mellitus where cure is not certain.
Objective: This study investigated the anti-diabetic and heamatological effects of Chrysophyllum albidum fruit-skin (CAFS) supplemented diet on streptozotocin induced diabetic rats.
Methods: Diabetes mellitus was induced by a single intraperitoneal injection of 50 mg/kg streptozotocin (STZ) and 70g/kg CAFS supplemented diet was used on STZ-induced diabetic rats to test its antidiabetic efficacy with some biochemical parameters and histological evaluation of liver and pancreatic tissues for a treatment period of twenty-eight days.
Results: The diabetic untreated rats exhibited hyperglycaemia accompanied with increases in glycosylated haemoglobin, plasma and liver lipid profile except high density lipoprotein-cholesterol (HDL-c) and white blood cell count while decreasing the body weight, insulin, hepatic glycogen and red blood cell levels. CAFS was significantly (p<0.05) effective in inhibiting hyperglycemia by 68%, decreased glycosylated haemoglobin by 20%, plasma and liver lipid profile except HDL-c and white blood cell count but increased the body weight by 17%, insulin, hepatic glycogen and red blood cell levels in comparison with diabetic untreated group. The results were comparable to glibenclamide (standard-drug). Histopathological studies on liver and pancreas of CAFS-treated rats showed regenerative effects.
Conclusion: This study has indicated that CAFS possesses antihyperglycemic, antihyperlipidemic and ameliorative effect on diabetic induced abnormalities in haematological parameters, β-cell and liver tissue. The findings suggest that CAFS may be used as therapeutic adjunct in the management of diabetes.
Kamal Adomian Decomposition Method for Solving Nonlinear Wave-Like Equation with Variable Coefficients
Authors: Ahmad Azhari 
Published: April 2019

In this paper, we applied a new method for solving nonlinear wave-like equation with variable coefficients , when the exact solution has a closed form. This method is Kamal Adomian De-composition Method (KADM). The Kamal decomposition method is a combined form of the Kamal transform method and the Adomian decomposition method [1,2,3]. The nonlinear term can easily be handled with the help of Adomian polynomials which is considered to be a significant advantage of this technique over the other methods. The results reveal that the Kamal decomposition method is very efficient, simple and can be applied to other nonlinear problems.
Factors Related to Deaths of under 5 Years Old Children in Dar Alsalam Area-Khartoum-Sudan
Authors: Abdalla Asma Abdelaal , Milad Christina Nagi , Balla Siham Ahmed , Mohamed Haieder Abuahmed , Awad Elkarim Mohamed Ali 
Published: April 2019

Aims: This study is done to identify factors affecting under five mortality in Dar Alsalam area, Khartoum.
Study Design: This is a community based cross-sectional study.
Place and Duration of Study: The study was carried out in block 25 in Dar Alsalam area in Khartoum State during March- April 2012.
Methodology: A total of 240 women in reproductive age who had an experience of child death were interviewed. The data was collected by semi-final medical students using structured questionnaire. Two stage cluster sampling was used to select the households. Data was summarized using descriptive statistics and logistic regression analysis was carried out to identify factors associated with under-five mortality.
Results: Age of 156 (65%) of the deceased children was less than one year, while the age of 84 (35%) was between one and five years. The age of (25%) of the mother at the time of their child birth was below 18 years. The majority of the mothers (70.8%) were illiterate, 74.2% were working and 80% were married. Of the children 51.7 were males and for 74.2% of them the birth interval was less than 2 years. Only 16.7% were breast fed for more than two years while the rest (83.3%) were breast fed up to 2years. Only 34.2% of the deceased children had completed their vaccination, and 68.3% had been admitted to hospital more than once before death.
Half of the families have piped water in their houses, in 75.8% of the houses there are pit latrines and in 68.3% there is electricity supply.
Logistic regression analysis identified incomplete vaccination, not employed mothers and having no latrines in the house as the factors related to the death of children between 1-5 years than those below one year.
Conclusion: Under-five mortality in low socioeconomic areas is associated with Low family income, mother’s illiteracy, early marriage and absence of latrines in the houses.
Assessing the feasibility of single target radiosurgery quality assurance with portal dosimetry
Authors: Covington Elizabeth L. , Snyder Jesse D. , Wu Xingen , Cardan Rex A. , Popple Richard A. 
Published: April 2019

AbstractPurposeTo assess the feasibility of using portal dosimetry (PD) for pre‐treatment quality assurance of single target, flattening filter free (FFF), volumetric arc therapy intracranial radiosurgery plans.MethodsA PD algorithm was created for a 10X FFF beam on a Varian Edge linear accelerator (Varian Inc, Palo Alto, CA, USA). Treatment plans that were previously evaluated with Gafchromic EBT‐XD (Ashland, Bridgewater, NJ, USA) film were measured via PD and analyzed with the ARIA Portal Dosimetry workspace. Absolute dose evaluation for film and PD was done by computing the mean dose in the region receiving greater than or equal to 90% of the max dose and comparing to the mean dose in the same region calculated by the treatment planning system (TPS). Gamma analysis with 10% threshold and 3%/2 mm passing criteria was performed on film and portal images.ResultsThirty‐six PD verification plans were delivered and analyzed. The average PD to TPS dose was 0.989 ± 0.01 while film to TPS dose was 1.026 ± 0.01. All PD plans passed the gamma analysis with 100% of points having gamma <1. Overall, PD to TPS dose agreement was found to be target size dependent. As target size decreases, PD to TPS dose ratio decreased from 1.004 for targets with diameters between 15–31 mm and 0.978 for targets with diameters less than 15 mm.ConclusionThe agreement of PD to TPS mean dose in the high dose region was found to be dependent on target size. Film measurements did not exhibit size dependence. All PD plans passed the 3%/2 mm gamma analysis, but caution should be used when using PD to assess overall dosimetric accuracy of the treatment plan for small targets.
Working memory and second language accent acquisition
Authors: Mattys Sven L. , Baddeley Alan 
Published: April 2019

SummaryWe explored the proposal that overt repetition of verbal information improves the acquisition of a native accent in a second language. Mandarin‐speaking Chinese learners of English were recorded while repeating and reading out English sentences before and after one of three treatments: (a) repeating native English sentences subvocally, “covert repetition,” (b) repeating sentences out loud, “overt repetition,” and (c) unfilled time of comparable duration. The sentences were rated by English speakers for their nativeness, fluency, and intelligibility. Overt repetition improved accent rating for readout sentences. Covert repetition did not. Neither condition improved accent rating for repeated sentences, suggesting that immediate repetition depends on temporary rather than long‐term representations. Our results provide some support for the use of overt repetition in accent learning. From a theoretical perspective, an interpretation is proposed in terms of a separation between phonological and articulatory coding within the phonological loop component of working memory.
Determinants of Positive Temporal Artery Biopsies in the Veterans Health Administration National Database Cohort
Authors: Chung Sarah H. , Morcos Meredith B. , Ng Bernard 
Published: April 2019

ObjectiveThis study sought to determine the effect of temporal artery biopsy (TAB) postfixation length, laterality, age, and prior prednisone exposure on TAB positivity utilizing the Veterans Health Administration national database.MethodsSubjects with procedure code for TAB between 1999 and 2017 were queried, and pathology reports were reviewed manually. Demographic, laboratory, and prescription data were extracted. Multivariate analyses and logistic regression were run using Stata, version 13.0.ResultsA total of 3,057 pathology reports were reviewed; 306 biopsies (10%) were designated positive. The likelihood of a positive TAB significantly correlated with TAB postfixation length of >3.0 cm (odds ratio [OR] 1.58 [95% confidence interval (95% CI) 1.06, 2.36], P < 0.05) as well as with bilateral biopsy in 1 sitting (OR 1.83 [95% CI 1.29, 2.59], P < 0.01). Positive TAB also significantly correlated with age >71 years. Prednisone administration up to and beyond 42 days prior to TAB did not influence TAB result.ConclusionThis retrospective study examined predictors of TAB positivity and utilized national data collected on US veterans over the span of 18 years. The results suggest consideration of pursuing initial bilateral TAB or achieving a TAB postfixation length of at least 3 cm to improve yield. The results also agree with prior studies showing that pre‐TAB steroid exposure does not appear to affect yield even up to and beyond 42 days prior to biopsy.
Cytoskeletal and Actin‐Based Polymerization Motors and Their Role in Minimal Cell Design
Authors: Hürtgen Daniel , Vogel Sven Kenjiro , Schwille Petra 
Published: April 2019

AbstractLife implies motion. In cells, protein‐based active molecular machines drive cell locomotion and intracellular transport, control cell shape, segregate genetic material, and split a cell in two parts. Key players among molecular machines driving these various cell functions are the cytoskeleton and motor proteins that convert chemical bound energy into mechanical work. Findings over the last decades in the field of in vitro reconstitutions of cytoskeletal and motor proteins have elucidated mechanistic details of these active protein systems. For example, a complex spatial and temporal interplay between the cytoskeleton and motor proteins is responsible for the translation of chemically bound energy into (directed) movement and force generation, which eventually governs the emergence of complex cellular functions. Understanding these mechanisms and the design principles of the cytoskeleton and motor proteins builds the basis for mimicking fundamental life processes. Here, a brief overview of actin, prokaryotic actin analogs, and motor proteins and their potential role in the design of a minimal cell from the bottom‐up is provided.