bluuebunny/crossref_metadata_2025_split huggingface dataset:
Inhibition of Formation of Conjugated Dienes in Linseed Oil
Authors: Kūka Māra , Čakste Ilze , Kūka Pēteris 
Published: May 2018

Abstract
Oxidation of fats and oils reduces the nutritional value of food and causes various health problems. The addition of antioxidants prevents the oxidation of fats in the food. The antioxidant activity of antioxidants represents the ability to inhibit the process of oxidation. The antioxidant activity of herbal extracts has usually been assessed in a linoleic acid emulsion system. The aim of the present study was to evaluate inhibition of conjugated diene formation in Latvian linseed oil. Ethanol extract of the calyx of Hibiscus sabdariffa L., vanillin, α-tocopherol and 2,6-di-tert-butyl-4-methylphenol as additives were compared for their antioxidative activity. The samples of linseed oil with additives were incubated for 24 h at 60 °C and then analysed using UV spectrophotometry (λ = 234 nm). The antioxidant activity of additives was characterised by the percentage of formation of conjugated dienes. The ability of additives to inhibit oxidation in linseed oil decreases as follows: vanillin, 2,6-di-tert-butyl-4-methylphenol and α-tocopherol. Our results indicate that linseed oil can be used to test antioxidative activity of substances.
Bioactive Compounds in Tomatoes at Different Stages of Maturity
Authors: Dūma Māra , Alsiņa Ina , Dubova Laila , Erdberga Ieva 
Published: May 2018

Abstract
Tomato is known as a vegetable with several health benefits due to its high level of bioactive compounds, especially lycopene, phenolics, and vitamin C. The effect of tomato variety and stage of maturity on the bioactive compounds concentration was studied. Ten tomato varieties were grown and collected from a greenhouse at two different stages of ripening. The obtained results showed that there were significant differences in the mean values between analysed parameters according to the stage of ripening and variety. The highest concentration of vitamin C was determined for variety Sakura F1 at maturity stage, and the lowest for variety Sunstreem F1 for unripe fruits. The concentration of phenols and flavonoids increased during tomato ripening and the highest rate was observed for variety Naget F1 (from 7.86 mg·100g−1 to 14.34 mg·100 g−1 (phenols) and flavonoids from 6.09 mg·100 g−1 to 10.03 mg·100 g−1. The concentration of lycopene in the unripe stage was low (mostly about 1 mg·100 g−1) and the most quantitative changes and the highest concentration of lycopene in full maturity stage was determined for variety SV0946TS (27.11 mg·100 g−1) and variety NectarF1 (16.81 mg·100 g−1).
Influence of Steam Treatment and Drying on Carrots Composition and Concentration of Phenolics, Organic Acids and Carotenoids
Authors: Prieciņa Līga , Kārkliņa Daina 
Published: May 2018

Abstract
Carrot (Daucus carota L.) is a globally used vegetable from the Apiacea family. It contains macro and micro elements, as well as various phytochemicals. The aim of the study was to determine concentration of carotenoids and organic acids, phenolic composition and antiradical scavenging activity, and colour changes during steam-blanching (for 1.5 and 3.0 min) and in dried carrots in convective and microwave-vacuum driers. Gravimetric, spectrophotometric, and high performance liquid chromatography (HPLC) methods were used for analysis. Carotenoids in fresh carrots were detected in high amounts, which decreased during thermal treatment and drying. The main organic acids in fresh carrots detected in highest amounts were oxalic, tartaric, quinic, malonic, and citric acids. Ascorbic acid concentration decreased minimally with steam processing, but significantly during drying. Fresh carrots contain minimal amounts of total phenolics, which increased during the thermal and drying processes used, while flavonoid, flavonol, flavan-3-ol and phenolic acid concentration decreased. The compound found in highest amounts by HPLC methods were 3.4-dihydroxybenzoic and 3.5-dihydroxybenzoic acids, catechin, 4-hydroxybenzoic acid, epicatechin and sinapic acid.
Changes in Bone Mineral Density in Young Adults with Type 1 Diabetes Mellitus
Authors: Goia-Socol Monica , Duncea Ileana , Roman Gabriela , Goia-Socol Mihai-Andrei , Leucuţa Daniel-Corneliu , Georgescu Carmen Emanuela 
Published: May 2018

Abstract Background and aims: Type 1 diabetes mellitus (T1DM) represents a secondary cause of osteoporosis. Our aim was to determine bone mineral density (BMD) changes in a group of young Romanian adults with T1DM and to analyze the factors related to this disease that could have had an impact on bone mass. Material and Methods: Fifty-two young patients with T1DM were compared to 37 healthy volunteers matched for body mass index (BMI). All subjects had their BMD measured at the hip and lumbar spine. Results: We found no statistically significant differences in BMD between T1DM patients and controls (p=0.618 for lumbar spine, p=0.974 for femoral neck and p=0.883 for total hip). Multiple linear regression models detected BMI (p =0.043), smoking (p=0.001) and milk intake (p=0.004 for lumbar spine) as significant BMD determinants. In contrast, no associations were found between BMD and metabolic control, daily insulin dose or presence of diabetic retinopathy and/or neuropathy. Long diabetes duration was negatively associated with BMD in femoral neck (p=0.012). Conclusions: Although we couldn’t find differences between BMD in T1DM patients and controls, the link between diabetes duration and BMD that we found suggests that even young patients with long standing T1DM should have their BMD measured
Analysis of Chronic Kidney Disease – Asociated Glycemic Variability in Patients with Type 2 Diabetes Using Continuous Glucose Monitoring System
Authors: Văduva Cristina , Popa Simona , Moţa Maria , Moţa Eugen 
Published: May 2018

Abstract Background and Aims. In diabetic patients, chronic kidney disease (CKD) requires special attention due to the multitude of factors that determine glycemic variability. We aimed to assess glycemic variability in patients with CKD and type 2 diabetes mellitus (T2DM) using a continuous glucose monitoring system (CGMS) and identify the predictive value of inter-day and intra-day glycemic variability indices for metabolic imbalance. Material and method. We included 20 diabetic patients (10 CKD patients/10 patients without CKD) and 10 healthy volunteers. Anthropometric parameters, glycated hemoglobin (HbA1c), and glycemic variability indices on CGMS readings were registered. Results. CKD diabetic patients presented significantly higher inter-day and intra-day glycemic variability compared to the diabetic patients without CKD. HbA1c was not significantly different between diabetic subjects with/without CKD. ROC curves indicated that just some CGMS parameters had higher predictive value for metabolic imbalance (HbA1c≥6.5%) but only the percentage of time with glucose values>180 mg/dl (p=0.024) was an independent predictor for HbA1c≥6.5%. Conclusions. Subjects with CKD and T2DM had poor glycemic control and significantly higher glycemic variability comparative to those without CKD, and especially to healthy volunteers. Assessment of glycemic variability indices is more accurate than HbA1c for the quantification of glycemic control in CKD diabetic patients
Neonatal Diabetes – From Gene Discovery yo Clinical Practice Changes
Authors: Guja Cristian , Guja Loreta , Ionescu-Tîrgovişte Constantin 
Published: May 2018

Abstract Diabetes mellitus is one of the most common chronic diseases but also one of the most heterogeneous. Apart the common phenotypes of type 1 and type 2 diabetes, around 1-2% of all cases arise from a single gene mutation and are known as monogenic diabetes. Diabetes diagnosed within the first 6 months of life is known as neonatal diabetes and has been extensively studied during the last two decades. Unraveling the genetic cause and molecular mechanism of this rare diabetes phenotype led to a dramatic change in the treatment of these children who often can be switched from insulin to sulphonylurea treatment. The aim of this paper is to review the known genetic causes of neonatal diabetes and to highlight the most recent aspects of the disease caused by mutations in the KATP and insulin genes, with a special focus on the individualized treatment of these cases
The Challenges of Corporate Taxation in Iran: The Case of Construction Companies in the Province of Kurdistan
Authors: Gandoman Heidari Shaho , Soldatos Gerasimos 
Published: May 2018

Abstract
The present paper attempts to investigate the challenges of taxation in Iran based on the tax behavior of construction companies in Kurdistan Province. From a 165 questionnaires, Scheffe and Friedman tests were applied to test the following research hypotheses: Efficiency of tax laws, the role of tax experts in filing correct tax reports, the extent to which willing or unwilling tax noncompliance is detectable, and the effectiveness of penalties considering the case of construction companies. The evidence rejects tax law efficiency as well as the efficiency of the penalty-reward system and confirms the negative impact of tax noncompliance on tax revenue. Also, interestingly enough, neither the input of financial expertise in filling out tax reports nor the role of accounting information when taxable income is reported is shown to be statistically significant. Altogether these results point to a highly problematic tax regime in Iran at least in so far as corporate tax from construction companies in Iranian Kurdistan is concerned.
Overcoming Inertia with a Nudge: How the AAIMS Program Increased Advanced Placement Participation in Arkansas
Authors: Holt Andrew , McGarrity Joseph 
Published: May 2018

Abstract
The Arkansas Advanced Initiative for Math and Science (AAIMS) is program with the goal to increase Advanced Placement (AP) participation and increase the passing rate of AP exams. The program offers monetary incentives and support to students and teachers for one year, effectively creating a natural experiment. This paper exploits the one year treatment to empirically show that the program is effective at increasing a school’s AP participation rate by nudging the schools to increase AP offerings and satisfying a latent student demand for AP classes.
A Model to Simulate the Dynamics of Public Debt Sustainability in EU
Authors: Marinescu Ada Cristina , Albu Lucian-Liviu 
Published: May 2018

Abstract
Last decades the public debt increased continuously in all countries of European Union. At present, in many countries this dangerous growth is seriously affecting the general process of economic development. Although in a number of countries the public debt is today larger than 60% of GDP, as the imposed limit by Maastricht Treaty, the problem of its sustainability is varying from country to country. Following old and recent published studies in matter of public debt sustainability, one objective of our study is to analyse the existence of a convergence or a divergence process both at the level of the whole EU and within the two major groups of countries (EU14 – old members of EU, after Brexit, and respectively EU11 – new eastern members adhered to EU after 2000). Other objective is to build a model to simulate the long term dynamics of the public debt as a function of standard variables (such as GDP growth, interest rate, budgetary deficit, etc.). Moreover, by using recent data from Eurostat, IMF, and World Bank, we try to estimate few essential parameters in order to control the public debt sustainability in each country of EU. Finally, countries are grouped in a number of classes for which certain policy measures could be evaluated.
Financial Development and Manufacturing Performance: The Nigerian Case
Authors: Mesagan Ekundayo , Olunkwa Ndubuisi , Yusuf Ismaila 
Published: May 2018

Abstract
The study focused on financial sector development and manufacturing performance in Nigeria over the period of 1981 to 2015. In the study, three indicators such as manufacturing capacity utilization, manufacturing output and manufacturing value added were employed to proxy manufacturing performance while money supply as a percentage of GDP, domestic credit to the private sector and liquidity ratio were employed to proxy financial development. The study observed that credit to the private sector and money supply positively but insignificantly enhanced capacity utilization and output, but negatively impacted value added of the manufacturing sector in the short run. There is slight improvement in the long where both money supply and credit to private sector exert positive impact manufactured output. Hence, it becomes crucial for commercial banks to make available certain percentage of their profits for industrial expansion in order to create linkages between both sectors.
Corporate Sustainability – From a Fuzzy Concept to a Coherent Reality
Authors: Ogrean Claudia , Herciu Mihaela 
Published: May 2018

Abstract
During the last few decades, the search for sustainability has experienced a tremendous momentum, encompassing all the levels of the global system. Fuelled by complex (both proactive and reactive) motivators, the process has surpassed the characteristics of an intellectual endeavor – more preoccupied by idealist goals, and less focused on the actual means to achieve them – and has proved that it can successfully be transposed into the corporate real world – of decision making, objective assessment, and relentless scrutiny. The paper aims to (broadly) explore the world of the most sustainable corporations – based on a descriptive (factual and dynamic) analysis of Corporate Knight’s annual rankings (2016-2018) of the Most Sustainable Corporations – in order to: (a). determine (by comparing and contrasting) the main features these organizations – able to transform the fuzzy concept of corporate sustainability into a coherent reality – display; and (b). set the premises for future (narrower) researches – aiming to explain the “how-s” behind the design, development and implementation of the strategies these corporations follow in their search for (sustainable) competitiveness.
The Erotics of Scenario. On the Construction of the Subject in Postmodern Theatre
Authors: Piroşcă Alin-Daniel 
Published: May 2018

Abstract
Set in the postmodern culture cadres that Lyotard talked about twenty years ago, we are witnessing an accelerated mistrust of a conspicuous value. In fact, all this mistrust has occurred amid a radical overthrow of the way we were accustomed to perceiving the values of modernity. Having its starting point in philosophy, falling into disuse that postmodernity propose grows like a wave that appeared after a stone was thrown into the water. Theatre has not escaped from postmodern articulation, and its subjects have inevitably passed through the postmodern reconfiguration filter. In this article, we will talk about the subject of eroticism, trying to outline our thesis on the idea that the comprehensive synthesis of the receiver in relation to the postmodern performance is based on the construction of the subject folded on the identification of some indicators. Considered as a cultural construct, eroticism is eliminated through its discourse and requires scenarios to be fully understood and recognized. The question inevitably arises: to what extent can we talk about these scenarios in the postmodern performance?
Faces of the Present. Romeo Castellucci’s Postmodernism
Authors: Avram Cristi 
Published: May 2018

Abstract
This article follows the concept of postmodernism through the eyes and work of a contemporary director – Romeo Castellucci. Owing to the fact that this artistic current is constantly developing, trying to define it would be rather useless, although some of its particularities are worth to be mentioned: eclecticism, fragmental, the syncretism of arts, destroying convention, the performance, the installation etc. The above mentioned Italian director is one of the best examples of postmodern directing. Among his great creations, one stands out: the trilogy which develops from Dante Alighieri’s Divine Comedy. By analyzing this production, one may unravel traces of postmodernism.
Synthesis and solubility of brompyromorphite Pb5(PO4)3Br
Authors: Janicka Urszula , Bajda Tomasz , Manecki Maciej 
Published: May 2018

AbstractThe bromide analogue of pyromorphite Pb5(PO4)3Br was synthesized and characterized by X-ray diffraction, infrared spectroscopy and scanning electron microscopy. The solubility of the brompyromorphite was measured at 25°C and pH values of 2.0, 2.6 and 3.2. For the 3 pH measurements, the average solubility product, log KSP, for the reaction Pb5(PO4)3Br ⇔ 5Pb2+ + 3PO- 3- + Br- at 25ºC is -77.38 ± 0.70. The free energy of formation, ΔG°f,298, calculated from this measured solubility product is -3724.7 ± 4.3 kJ mol−1. These results confirm that brompyromorphite is more soluble than pyromorphite.
Preservation of magmatic signals in metavolcanics from Wedel Jarlsberg Land, SW Svalbard
Authors: Gołuchowska Karolina , Barker Abigail K. , Majka Jarosław , Manecki Maciej , Czerny Jerzy , Bazarnik Jakub 
Published: May 2018

AbstractThe purpose of this study is to determine the role of metamorphism and thereby identify the preserved magmatic signature in metavolcanics from Wedel Jarlsberg Land in southwestern Svalbard. Samples have been collected from late Precambrian metavolcanics occurring within metasedimentary rocks of the Sofiebogen Group, as well as dikes cutting older metasedimentary rocks of the Deilegga Group. The volcanic rocks were metamorphosed under greenschist facies conditions during the Caledonian Orogeny. To investigate the role of metamorphism, we present petrography, major and trace element geochemistry, and use factor analysis as a tool to identify correlations that correspond to primary magmatic signals.The metavolcanics are classified as subalkaline basalt to basaltic andesite and they contain relicts of primary clinopyroxene and plagioclase. The metamorphic minerals are actinolite, secondary plagioclase, chlorite and minerals belonging to the epidote group. Major element variations are highly scattered with no obvious trends observed. The HFSE and REE show strong trends attributed to fractional crystallization. The LILE, Th and La show elevated contents in some samples.Factor analysis shows that the HFSE and REE are well correlated. The LILE form a separate well correlated group, while the major elements are not correlated, except for Na2O, Fe2O3 and CaO. The lack of correlation for major elements, as well as the lack of observed fractional crystallization trends between these elements suggests that they were modified by metamorphism. The strong correlation of HFSE and REE reflects the original geochemical signal generated by magmatic processes. The correlation of the LILE is consistent with their elevated composition implying the influence of crustal contamination processes, and though some variability is likely superimposed due to metamorphism, the primary magmatic record is not completely destroyed. We conclude that the HFSE and REE are not influenced by metamorphic processes and therefore provide robust records of magmatic processes.
Game control methods in avoidance of ships collisions
Authors: Lisowski Józef 
Published: May 2018

ABSTRACT

The paper introduces application of selected methods of a game theory for automation of
the processes of moving marine objects, the game control processes in marine navigation
and the base mathematical model of game ship control. State equations, control and state
constraints have been defined first and then control goal function in the form of payments
- the integral payment and the final one. Multi-stage positional and multi-step matrix,
non-cooperative and cooperative, game and optimal control algorithms in a collision
situation has been presented. The considerations have been illustrated as an examples of
a computer simulations mspg.12 and msmg.12 algorithms to determine a safe own ship’s trajectory in the
process of passing ships encountered in Kattegat Strait.
Numerical prediction of steady and unsteady tip vortex cavitation on hydrofoils
Authors: Flaszyński Paweł , Szantyr Jan A. , Tesch Krzysztof 
Published: May 2018

ABSTRACT

The article presents the numerical method for prediction of tip vortex cavitation generated on hydrofoils.
This method has been developed in the course of numerical and experimental research described in earlier
publications. The objective of the research was to design the optimum discrete grid structure for this specific
computational task and to select the best turbulence model for such an application The article includes
a short description of the method and a computational example demonstrating its performance. In this
example the results of numerical prediction of the cavitating tip vortex obtained from two commercial CFD
codes are compared with experimental photographs taken in the cavitation tunnel in the corresponding
flow conditions. Altogether nine different flow conditions are tested and analyzed, but only selected results
are included. The accuracy of the numerical predictions is discussed and the reasons for minor existing
discrepancies are identified. The unsteady tip vortex calculations are also presented, showing the fluctuations
of the transverse velocity components predicted for three cross-sections of the cavitating vortex kernel.
The effects of matrix module structure on shipyard panel line’s throughput
Authors: Ozkok Murat 
Published: May 2018

ABSTRACT

Over the last decades a really tough competitive environment has been observed in shipbuilding sector. Under
these circumstances shipyards desire to reduce product cycle time in order to manufacture the product as
soon as possible. For this reason it is required to make some alterations in shipyard production system in
order to reduce cycle time. In this study a panel fabrication line used in a shipyard, has been considered.
The workstations of the panel line have been modeled by using ARENA simulation software and the effects
of matrix module assembly on panel line throughput, have been determined
A study on performance of planing-wing hybrid craft
Authors: Zeraatgar Hamid , Rostami Ali Bakhshandeh , Nazari Abolfazl , Nazari Abolfazl 
Published: May 2018

ABSTRACT

A hybrid craft is defined as a combination of different lifting surfaces. The lift force can be of aerodynamic
or hydrodynamic character. This research deals with the conditions of using planing mono-hulls equipped
with a couple of wings, called planing-wing hybrid craft. A parametric study is conducted by using Vortex
Lattice Method to determine feasibility of using an aerodynamic wing mounted to planing craft. It has
been determined that the wing area should be more than twice as much as the wetted surface of the craft,
to get an effective wing for planing craft. Furthermore, the wing should be so designed as to obtain its
high aspect ratio. Maximum lift force contribution resulting from different wing configurations considered
in this study is less than 35 percent of the total hydrodynamic lift force at an arbitrary condition. On this
basis it may be concluded that the wing may be effectively used only in special conditions, hence this is
not recommended for general application.