bluuebunny/crossref_metadata_2025_split huggingface dataset:
A katalázkutatás kétszáz éve, 1818–2018
Authors: Góth László 
Published: June 2018

Abstract: L. J. Thénard and J. L. Gay-Lussac discovered hydrogen peroxide in 1818. Later, Thénard noticed that animal and plant tissues decompose hydrogen peroxide. The substance which is responsible for this reaction was named as catalase by O. Loew in 1900. The catalase enzyme was regarded as a diagnostic and a tumour marker in the late years of the 19th century and in the early years of the 20th century. Acatalasemia, an inherited deficiency of enzyme catalase, was studied in Japan, Switzerland and Hungary. The recent findings on catalase are focusing on the effects of reactive oxygen species and on the association of acatalasemia and diabetes mellitus. Orv Hetil. 2018; 159(24): 959–964.
Comparison of clinical profile between Plasmodium vivax and Plasmodium falciparum malaria in children in tertiary care hospital
Authors: Ravilala Vinod Kumar , Ahmed Shabbeer , Vanka Murali Krishna , Seepana Rajesh 
Published: June 2018

Background: The high prevalence of uncomplicated malaria as seen in this study suggests the importance of timely diagnosis and effective treatment and encourages new activities to further decrease complicated malaria cases.Methods: In this study, malaria was diagnosed by conventional thick and thin peripheral smear stained with Leishman stain, examined under oil immersion. The slide was considered negative when there were no parasites in 100 HPF. Rapid diagnostic tests were based on detection of specific plasmodium antigen, LDH (optimal test) for Vivax and HRP2 for falciparum. The mode of presentations like fever, splenomegaly, vomiting, abdominal pain, laboratory investigations and complications were noted. Simple malaria was defined as Plasmodium vivax or Plasmodium falciparum malaria without any complications. All the statistical analysis was done by using SPSS 16 version and in MS Excel. Qualitative variables were expressed as frequencies and percentages. Chi-square was used for examining the categorical data.Results: A total 100 cases of malaria diagnosed by rapid diagnostic test and/or peripheral smear were studied. 69% of the cases were falciparum malaria and 31% of the cases were vivax malaria. Males were more commonly affected than females. Vivax malaria was most common between 5-10 years of age and falciparum malaria was more common in 0-5 years of age. Uncomplicated malaria was seen in 73% of the cases and complicated malaria was seen in 27% of the cases. Incidence of complicated malaria was more common in case of falciparum malaria. Fever, pallor, hepatomegaly and splenomegaly were significant for clinical diagnosis of malaria. Severe anaemia was the most common presentation of complicated malaria followed by jaundice. Cerebral malaria was more common in case of falciparum malaria. Metabolic acidosis and renal failure were more common in falciparum malaria. Hypoglycemia, significant bleeding and shock were more common in falciparum malaria. ARDS was most common in vivax malaria.Conclusions: This study emphasizes the importance of severity of P. Vivax malaria and recommends further studies to establish mortality and severity predictors specific to it.
Reactive Transport Modelling of a Carbonate Reservoir under Seawater Injection
Authors: Hu Yisheng , Mackay Eric 
Published: June 2018

Abstract
Produced water chemical compositional data are collected from a carbonate reservoir which had been flooded by North Seawater for more than 20 years, so there is an opportunity to analyse the large amount of produced water data collected, understand the brine/brine and brine/rock interactions and explore the impact factors behind them. In some publications, core flood experimental tests were performed with chalk cores or carbonate columns in order to make an understanding of possible chemical reactions occurring triggered by injected water with different composition (Seawater, low salinity water or any other brine). However, most of the time the laboratory conditions where core flooding experiments are implemented cannot fully simulate the real reservoir conditions. Therefore, in this study, with the help of the valuable produced water dataset and some basic reservoir properties, a one-dimensional reactive transport model is developed to identify what in situ reactions were taking place in the carbonate reservoir triggered by seawater injection.
From the perspective of reservoir mineralogy, calcite, as the dominant mineral in the carbonate reservoir, is relatively more chemically reactive than quartz and feldspar which are usually found in sandstone. Whether calcite is initially and dominantly present in the carbonate reservoir rock is dissolved under seawater flooding or not is the first key issue we focused on. The effects of calcite dissolution on the sulphate scaling reactions due to incompatible brine mixing and the potential occurrence of carbonate mineral precipitation induced by calcite dissolution are investigated and discussed in detail. The comparison of simulation results from the isothermal model and the non-isothermal model show the important role of temperature during geochemical processes. The partitioning of CO2 from the hydrocarbon phase into injected brine was considered through calculation of the composition of reacted seawater equilibrated with the CO2 gas phase with fixed partial pressure (equivalent with CO2 content), then subsequently the impact of CO2 interactions on the calcite, dolomite and huntite mineral reactions are studied and explained. We also use calculation results from the model to match the observed field data to demonstrate the possibility of ion exchange occurring in the chalk reservoir.
Removal of molybdenum(VI) from aqueous solutions using nano zero-valent iron supported on biochar enhanced by cetyl-trimethyl ammonium bromide: adsorption kinetic, isotherm and mechanism studies
Authors: Lian J. J. , Huang Y. G. , Chen B. , Wang S. S. , Wang P. , Niu S. P. , Liu Z. L. 
Published: June 2018

Abstract
A new carbonized pomelo peel biosorbent (MCPP) modified with nanoscale zero-valent iron (NZVI) and cetyl-trimethyl ammonium bromide was prepared and employed for the adsorption of molybdate (Mo(VI)) from aqueous solution. We investigated the effects of various conditions on Mo(VI) adsorption and evaluated the results based on adsorption kinetics models and isotherm equations. The kinetic data fitted to the pseudo-second-order model. The Langmuir model best described the adsorption of Mo(VI) on MCPP. The values of changes in Gibbs free energy, standard enthalpy, and standard entropy revealed that the adsorption process was feasible, spontaneous and endothermal. X-ray diffraction, Fourier transform infrared and X-ray photoelectron spectroscopy measurements suggested that Mo(VI) adsorption occurred via both the reduction and surface adsorption. Thus, biochar, prepared from fruit residue, can be applied to remove Mo(VI) from aqueous solutions. More importantly, our results provide a sustainable approach for Mo(VI) removal from wastewater by means of functional modification.
Combined Evaluation of Expression of CXCR4 and Nrf2 as Prognostic Factor for Patients with Gastric Carcinoma
Authors: Yu Shuo , Wu Tao , Wang Jia , Cheng Chuantao , Wang Jing , Sun Liangzhang , Liu Chao , Cao Gang , Hu Tinghua 
Published: June 2018

Background:
CXC Chemokine Receptor 4 (CXCR4) and NFE–related factor 2 (Nrf2) have been
observed implicated with cell malignant behavior of human cancers.
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Aims: In this study, we detected their expression in gastric carcinoma (GC) tissue specimens and related the
result with clinicopathological data and patient survival.

Methods:
120 GC and compared normal tissue specimens were processed to analyse the expression of CXCR4
and Nrf2. We found that the expression of CXCR4 and Nrf2 was dramatically increased in GC tissues when
compared to the distant non-cancer tissues (P<0.05). CXCR4 overexpression was associated with the depth of
invasion (P= 0.006) Histological grade (P=0.018) TNMstage (P= 0.021) lymph node metastasis (P < 0.001)
and distant metastasis (P=0.026), whereas overexpression of Nrf2 protein was significantly associated with
tumor size (P=0.045), Histological grade (P=0.026), TNMstage (P= 0.020), lymph node metastases (P < 0.001)
and distant metastasis (P=0.008). Furthermore, we observed a significant co-expression of CXCR4 and Nrf2
expression in GC specimens.

Results:
In the survival part, we found that GC patients with CXCR4+ and Nrf2+ had worse outcomes. The
significant prognostic indicators are age, tumor size, histological grade, TNMstage, CXCR4, Nrf2, and coexpression
of CXCR4 and Nrf2 in GC patients. Multivariate analysis showed that TNMstage and
CXCR4+/Nrf2+ expression were risk factors. Above all we come to the conclusion that the expression of
CXCR4 might partly be regulated by the level of Nrf2 and both positive expressions suggest poor prognosis of
GC patients.
Validation and Assessment of Osteoporosis Self-Efficacy Among Iraqi General Population
Authors: Sahib Mohanad Naji 
Published: June 2018

Background:
Poor quality of life, fractures and disability are the consequences of preventable osteoporosis.

Objectives:
The aims of this study were to validate and assess Osteoporosis Self-efficacy Scale (OSES-A) Arabic version among Iraqi general population.

Methods:
A cross-sectional study with a random cluster sampling method from the community was used. Forward–backward-forward translation method was used to translate the questionnaire from English to Arabic. Beside OSES-A, Osteoporosis Knowledge Tool (OKT) and Osteoporosis Health Belief Scale (OHBS) Arabic versions were used to assess osteoporosis preventive behaviours.

Results:
The results showed good face validity and reliability. The construct validity showed two factors which explain 80.86% of the variance. In addition, the result showed low self-efficacy score (658.43±222.014) with 83.33% were found to have low OSES-A level. There were significant associations between age, gender, and self-reported osteoporosis with OSES-A levels. In addition, there were significant differences between age, gender, marital status, family history of osteoporosis, self-reported osteoporosis and osteoporosis diagnosis or screening in relation to total OSES-A scores. Moreover, there were positive correlations between the OSES-A total score with total knowledge and health belief. Multivariate analysis revealed that OKT levels, OHBS levels, age and gender were predictors for OSES-A levels.

Conclusion:
This study showed good cultural adaptation and psychometric properties of OSES-A tool and could be used in any osteoprotective educational program.
Nurse Managers’ Emotional Intelligence and Effective Leadership: A Review of the Current Evidence
Authors: Prezerakos Panagiotis E 
Published: June 2018

Background:
Emotional Intelligence has made a significant contribution to effective leadership, becoming one of the key characteristics of leaders.
Objective: The aim of the present study was to review qualitative and quantitative studies concerning Emotional Intelligence of nurse leaders and the evidence-based composition of their results.

Method:
A search was performed in the electronic databases (Pubmed, Scopus and CINAHL) for articles, which were published in the period 2000-2017 in English or Greek. Eleven studies met the inclusion criteria, of which 10 were quantitative and one was qualitative.

Results:
The results suggested that Emotional Intelligence is a useful tool for nurse leaders and contributes decisively to the achievement of effective management in healthcare.

Conclusion:
It is necessary for nurses to improve their social and emotional skills because of the particular nature of the nursing profession, which places the healthy or weak person at its center.
A multidisciplinary, minimally invasive approach combining lacrimoscopy and fluoroscopically guided stenting for management of nasolacrimal apparatus obstruction in dogs
Authors: Strom Ann R. , Culp William T. N. , Leonard Brian C. , Dear Jonathan D. , Wisner Erik R. , Johnson Lynelle R. , Maggs David J. 
Published: June 2018

Abstract
OBJECTIVE To describe and evaluate outcomes of a multidisciplinary, minimally invasive approach combining lacrimoscopy and fluoroscopically guided stenting for management of nasolacrimal apparatus (NLA) obstruction in dogs.
DESIGN Prospective, nonrandomized clinical trial.
ANIMALS 16 client-owned dogs with confirmed NLA obstruction.
PROCEDURES Dogs underwent CT contrast dacryocystorhinography, rhinoscopy, and lacrimoscopy. Whenever possible, the NLA was stented, typically with fluoroscopic guidance.
RESULTS Median duration of clinical signs prior to treatment was 3.2 months (range, 0.2 to 14 months). Causes of NLA obstruction were a foreign body (n = 5), dacryocystitis (4), stenosis secondary to fibrosis (3), granulation tissue (1), or granulation tissue in association with a small foreign body (1); a cause was not identified in 2 dogs. Stents were placed in 14 of 16 (88%) dogs for a median duration of 5.6 weeks (range, 1.3 to 9.4 weeks). Stenting was not possible in 2 dogs with stenosis of the NLA secondary to granulation tissue or fibrosis. Owners of all 16 dogs reported at least 60% clinical improvement with median improvement rated as 95%, and owners of 8 dogs reporting complete resolution of signs. Two dogs required antimicrobial administration because of dacryocystitis that persisted after stent removal; a foreign body was not found in either dog.
CONCLUSIONS AND CLINICAL RELEVANCE Overall clinical response and owner-rated improvement for dogs with NLA obstruction that underwent lacrimoscopy and fluoroscopically guided stenting were high, especially given that these dogs had failed to respond to conventional treatment.
Exploring a Big Data Approach to Building a List Frame for Urban Agriculture: A Pilot Study in the City of Baltimore
Authors: Young Linda J. , Hyman Michael , Rater Barbara R. 
Published: June 2018

Abstract
The United States Department of Agriculture’s National Agricultural Statistics Service (NASS) has the responsibility of quantifying the nation’s agricultural production. Historically, it has focused on large production agriculture. With interest and activity increasing in urban areas, NASS has begun exploring how to better quantify urban agriculture. This segment of agriculture is particularly challenging to enumerate because the agricultural holdings tend to be small, diverse, widely dispersed, and more transient than the predominantly large farms in rural areas. In collaboration with the Multi-Agency Collaboration Environment (MACE), a new approach to list building was explored in a pilot study conducted in the City of Baltimore, Maryland. Using a big data approach, areas of potential agricultural activity were identified by gathering information (state and local permits, Facebook and twitter feeds, interest groups, etc.) via the web. A sample was drawn from the list, and an in-person survey was conducted to assess whether or not the identified areas had agricultural activity. The results of the pilot study are presented. Lessons learned from the study and next steps are discussed.
Response Burden Management for Establishment Surveys at Four National Statistical Institutes
Authors: Giesen Deirdre , Vella Mario , Brady Charles F. , Brown Paul , Ravindra Daniela , Vaasen-Otten Anita 
Published: June 2018

Abstract
Managing response burden is key to ensuring an ongoing and efficient supply of fit-forpurpose data. While statistical organizations use multi-faceted approaches to achieve this, response burden management has become an essential element of the strategy used by the U.S. Census Bureau, Statistics New Zealand, Statistics Canada, and Statistics Netherlands. Working in collaboration with respondents, with internal resources dedicated to provide customized approaches for large respondents and with other stakeholders (constituency representatives, associations, etc.) response burden management endeavors to minimize burden and educate stakeholders on the benefit of official statistics. The role continues to evolve with important initiatives regarding the compilation of burden metrics, improvements to existing tracking tools, and an expanded communication role.
Business Data Collection: Toward Electronic Data Interchange. Experiences in Portugal, Canada, Sweden, and the Netherlands with EDI
Authors: Buiten Gert , Snijkers Ger , Saraiva Paulo , Erikson Johan , Erikson Anna-Greta , Born Alice 
Published: June 2018

Abstract
This article discusses the experience and the ideas of National Statistical Institutes from four countries – Portugal, Sweden, Canada, and the Netherlands – in order to build a fully automated data collection system, to provide a system-to-system (S2S) data exchange or Electronic Data Interchange (EDI) between all stakeholders in the production chain. This joint work is a summary of an invited session at the Fifth International Conference on Establishment Surveys, which was devoted to ‘the future of business data collection’. Taken together, the four presentations provide an overview of recent experiences with S2S/EDI data collection for financial business data. The basis for such a system is an integrated unbroken digital information chain that runs from the recording of financial data in computerised administrative systems of individual businesses all the way to publishing economic statistics – the Business Information Chain. This chain can be ‘closed’ and made into a cycle by including a feedback loop, for example by providing benchmark data to businesses. However, to make it happen, technical standardisation, vertical and horizontal conceptual harmonisation between all partners in the chain, and positive business cases for all partners are needed. The article starts by putting EDI developments in historical perspective.
A Study of Small Area Estimation for Italian Structural Business Statistics
Authors: Luzi Orietta , Solari Fabrizio , Rocci Fabiana 
Published: June 2018

Abstract
The Frame SBS is a statistical register which has been developed at the Italian National Statistical Institute to support the annual estimation of structural business statistics (SBS). Actually, a number of core SBS are estimated by combining microdata directly supplied by different administrative sources. In this context, more accurate estimates for those SBS that are not covered by administrative sources can be obtained through small area estimation (SAE). In this article, we illustrate an application of SAE methods in the framework of the Frame SBS register in order to assess the potential advantages that can be achieved in terms of increased quality and reliability of the target variables. Different types of auxiliary information and approaches are compared in order to identify the optimal estimation strategy in terms of precision of the estimates.
Review of Assembly Sequence Planning Methods in Terms of Their Applicability in Shipbuilding Processes
Authors: Taraska Michał , Iwańkowicz Remigiusz , Urbański Tomasz , Graczyk Tadeusz 
Published: June 2018

Abstract
The article characterises the sea-going vessel hull assembly processes and then reviews the existing assembly methods of mechanisms and welded ship structures. Classification of these methods is done with respect to selected criteria of their applicability to hull assembly. Selected methods are used for calculations performed on a model structure and exemplary database. The analysed aspects include the performance of calculation algorithms and the quality of the obtained solutions. Particular attention is paid to the need for reduction of experts’ participation in the planning process due to strong search space explosion effect. The performed analyses have enabled the authors to formulate assumptions for models which would be applicable in real assembly planning in shipyards, as well as to indicate areas of further research which would make it possible to better consider the specificity of production of large-size welded structures.
Testing Contraction and Thermal Expansion Coefficient of Construction and Moulding Polymer Composites
Authors: Pyrzowski Łukasz 
Published: June 2018

Abstract
The paper presents results of systematic tests of contraction and thermal expansion coefficients of materials based on polymer composites. The information on the above material properties is essential both at the design stage and during the use of finished products. Components for the samples were selected in such a way as to represent typical materials used for production of construction and moulding elements. The performed tests made it possible to monitor the analysed parameters at different stages of the technological process.
Energy Analysis of Propulsion Shaft Fatigue Process in Rotating Mechanical System Part I Testing Significance of Influence of Shaft Material Fatigue Excitation Parameters
Authors: Korczewski Zbigniew , Marszałkowski Konrad 
Published: June 2018

Abstract
The article discusses the problem of mathematical modelling of energy conversion processes in a rotating mechanical system for the purpose of identifying fatigue states of propulsion shafts in this system. A simplified physical model of the analysed system, constructed in an appropriate scale, has made the basis for the experimental research. The research programme took into consideration mechanical fatigue excitation of the model propulsion shaft to find the correlation between the dynamic system load generated by a bending moment and the energy state of a specified shaft segment. A physical model of the analysed process was proposed, for which the plan of static randomised block experiment was worked out. The recorded experimental results were used for statistical analysis of the significance of influence of the quantities exciting the propeller shaft fatigue process and the adequacy of the developed mathematical model describing shaft’s durability. The analysis made use of the F-Snedecor test.
The article describes the general concept of the research, the constructed laboratory test rig, and the methodology of statistical inference concerning the significance of influence of input (exciting) parameters of the physical model on the recorded output parameters. The results of the performed statistical tests confirm the absence of the significance of influence of the rotational speed of the propulsion shaft on the selected types of rotating operation of the mechanical system. As a consequence, only one exciting parameter, which is the loading mass, is going to be taken into account in the functional description of fatigue life of the propulsion shaft.
Comparative Analysis of Thermodynamic Cycles of Selected Nuclear Ship Power Plants With High-Temperature Helium-Cooled Nuclear Reactor
Authors: Szewczuk-Krypa Natalia , Grzymkowska Anna , Głuch Jerzy. 
Published: June 2018

Abstract
This paper presents a comparative analysis of thermodynamic cycles of two ship power plant systems with a high-temperature helium-cooled nuclear reactor. The first of them is a gas system with recuperator, in which classical gas chamber is substituted for a HTGR reactor (High Temperature Gas-cooled Reactor). The second of the considered cycles is a combined gas-steam system where working medium flux from gas turbine outlet is directed into waste heat boiler and its heat is utilized for production of superheated steam to drive steam turbine. Preliminary calculations of the combine cycles showed that it is necessary to expand the system by adding to its steam part an inter-stage overheat for secondary steam, owing to that a required degree of steam dryness at outlet from the turbine can be reached, ensuring its correct operational conditions. The analyzed power systems were compared to each other with regard to efficiency of their thermodynamic cycles. Also, efficiency of particular cycles were subjected to optimization in respect to such parameters as : working gas temperature at outlet from reactor in gas system as well as steam pressure at outlet from waste heat boiler and partition pressure in steam part of combined system. Advantages of nuclear power plants compared with the classical power systems dominating currently in sea transport were also discussed.