bluuebunny/crossref_metadata_2025_split huggingface dataset:
Automated immunoassays for the autoantibodies to carbamylated or citrullinated telopeptides of type I and II collagens
Authors: Häyrynen Jere , Kärkkäinen Maija , Kononoff Aulikki , Arstila Leena , Elfving Pia , Niinisalo Helena , Savolainen Elina , Kautiainen Hannu , Risteli Juha , Kaipiainen-Seppänen Oili , Koivula Marja-Kaisa 
Published: November 2014

AbstractThe aim of the study was to describe automated immunoassays for autoantibodies to homocitrulline or citrulline containing telopeptides of type I and II collagen in various disease categories in an early arthritis series.Serum samples were collected from 142 patients over 16 years of age with newly diagnosed inflammatory joint disease. All samples were analyzed with an automated inhibition chemiluminescence immunoassay (CLIA) using four different peptide pairs, each consisting of a biotinylated antigen and an inhibiting peptide. Assays were performed with an IDS-iSYS analyzer. Autoantibodies binding to homocitrulline and citrulline containing C-telopeptides of type I (HTELO-I, TELO-I) and type II collagens (HTELO-II, TELO-II) were analyzed.The mean ratio of HTELO-I inhibition in seropositive and seronegative rheumatoid arthritis (RA) was 3.07 (95% CI 1.41–11.60), p=0.003, and in seropositive and seronegative undifferentiated arthritis (UA) 4.90 (1.85–14.49), p<0.001. The respective mean ratios in seropositive and seronegative RA and UA were in TELO-I 8.72 (3.68–58.01), p<0.001 and 3.13 (1.49–6.16), p=0.008, in HTELO-II 7.57 (3.18–56.60), p<0.001 and 2.97 (1.23–6.69), p=0.037, and in TELO-II 3.01 (1.30–9.51), p=0.002 and 3.64 (1.86–7.65), p=0.008. In reactive arthritis, ankylosing spondylitis, psoriatic arthritis and unspecified spondyloarthritis the inhibition levels were similar to those observed in seronegative RA or UA.Autoantibodies binding to homocitrulline or citrulline containing telopeptides of type I and II collagen did not differ significantly. They were highest among patients with seropositive disease and they differentiated seropositive and seronegative arthritis.
Kinetics of aquation of [Co(ODA)(H2O)3]
induced by Fe(III)
Authors: Wyrzykowski Dariusz , Jacewicz Dagmara , Pranczk Joanna , Sobolewska Natalia , Tesmar Aleksandra , Chmurzyński Lech 
Published: November 2014

Abstract
The aquation reaction of the oxydiacetate cobalt(II) complex, namely [Co(ODA)(H2O)2]•H2O (ODA = oxydiacetate), induced by the Fe(III) ions as the promoter has been studied spectrophotometrically (UV-Vis). Kinetic measurements were carried out in the 283.15 - 303.15 K temperature range and at a constant ionic strength of
1.0 M (NaNO3). The observed rate constants were computed by a program based on global analysis. Furthermore, the reaction activation parameters were determined using the Arrhenius and Eyring equations. The changes in the enthalpy, entropy as well as activation energy barriers were calculated in the range of 0.00125 M – 0.125 M of the Fe(III) ion concentration. Based on kinetic data a mechanism for the aquation of the [Co(ODA)(H2O)3] complex has been proposed.
Elaboration of hybrid cotton fibers treated
with an ionogel/carbon nanotube mixture
using a sol-gel approach
Authors: Valbe Raul , Tarkanovskaja Marta , Mäeorg Uno , Reedo Valter , Hoop Andres , Kink Ilmar , Lõhmus Ants 
Published: November 2014

Abstract
Ionic liquid (IL) synergy with other materials may influence their properties significantly. Nevertheless, their advantageous liquid state turns out to be an impediment for applications in devices which need stable solid state shaping. In the current study we present a novel method where new siloxane functionalized IL acts as a modifier for carbon nanotubes (CNTs) and titanium alkoxide-CNT coated hybrid cotton fibers. This elaborated route carried out by interconnected and entangled ionic liquid, sol-gel and solid carbon nanotube networks opens up opportunities for functionalization of sol-gel materials with different shapes and sizes. The comparison of properties of IL, ionogel, ionogel/CNT mixture and titanium alkoxide coatings is performed. Ionogel-modified cotton fibers have increased hydrophobicity, linear density, breaking force and ultimate strength as compared to the uncoated cotton fibers. These properties are ensured even after washing threads with water. A uniformly coated CNT network around the fibers strengthens the material and increases its electric conductivity.
New type of hybrids can be utilized in formulations which have UV-shielding and hydrophobic properties as well as for antibacterial properties. Characterization studies of the product were carried out by energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), optical microscopy and infrared (IR) spectroscopy.
Alkali roasting of bomar ilmenite: rare earths recovery and physico-chemical changes
Authors: Sanchez-Segado Sergio , Lahiri Abhishek , Jha Animesh 
Published: November 2014

Abstract
In this work, the alkali roasting of ilmenite
(FeTiO3) is presented as a process route for integrated beneficiation of the mineral for rutile-rich phase and rare earth oxides; the latter is released as a consequence of physical changes in the ilmenite matrix, during the water leaching after roasting. The oxidative alkali roasting transforms ilmenite mineral into water-insoluble alkali titanate and water-soluble ferrite. After roasting the insoluble alkali titanate is separated from rare-earth oxide mixture in colloidal form and water-soluble ferrite. Further leaching of alkali titanate is carried out with oxalic (0.3M) and ascorbic (0.01M) acid solution which removes the remaining Fe2+ ions into the leachate and allows precipitation of high-purity synthetic rutile containing more than 95% TiO2. Iron is removed as iron oxalate. The physico-chemical changes occurred during the roasting and leaching processes are reported by comparing the role of alkali on the roasting process and product morphologies formed.
Catalytic activity of hexagonal MoO3
modified with silver, palladium and copper
Authors: Trach Yuriy B. , Makota Oksana I. , Bulgakova Lidiya V. , Sviridova Tatsiana V. , Sviridov Dmitry V. 
Published: November 2014

Abstract
Catalytic activity of solvothermally-synthesized hexagonal molybdenum trioxide (h-MoO3) in epoxidation of 1-octene by tert-butyl hydroperoxide and the effect of deposition of metal (Ag, Pd, Cu) nanoparticles on the properties of catalyst have been investigated. It has been shown that silver-modified MoO3 demonstrates the highest catalytic activity and selectivity in the reaction of
1,2-epoxyoctane formation, whereas MoO3 modified with Pd nanoparticles exhibits worse catalytic performance than bare MoO3; by contrast, copper-modified MoO3 does not catalyze the epoxidation reaction. The Ag/MoO3 catalyst was also found to be active in the reaction of 1-octene oxidation by molecular oxygen at the initial stage of the oxidation process.
Mixed-ligand complexes of copper(II) ions
with L-glutamic acid in the systems
with triamines and non-covalent interaction between bioligands in aqueous solution
Authors: Bregier-Jarzebowska Romualda 
Published: November 2014

Abstract
The interactions between L-glutamic acid (Glu) and 1,7-diamino-4-azaheptan (3,3-tri) and 1,8-diamino-4-azaoktan (Spd) in metal-free systems and in the appropriate Cu(II) ions complexes were studied by potentiometric and spectral methods. The composition and overall stability constants of complexes forming in the systems studied were determined and the reactions centres were identified. In the complex formation conditions, the ligands have positive and negative reaction centres, which are also the potential sites of metal coordination. Below pH 7 in metal-free systems, the terminal amine groups from both triamines and the oxygen atoms from –C(5)OO- group as well as the amine group from Glu do not take part in the weak noncovalent interactions between the ligands, but at higher pH all available active centres of the ligands are involved in the interactions in the adducts formed and the inversion effect is observed. In the Cu(II)/Glu/triamine systems, in the species MLHL’, both 3,3-tri and Spd were found to coordinate Cu(II) ions in the same way, while only in the Cu(Glu)H(Spd) complex the oxygen atoms from –C(5)OO- group of the amino acid do not take part in metallation. In the species MLL’ and MLL’OH with 3,3-tri, the chromophore formed was of different type than that formed in the corresponding species with Spd. This is related to the fact that the nitrogen atom from the amine group of Glu is inactive in the coordination. Thus, not only the length of the polyamine carbon chain but also the length of the amino acid carbon chain influence the interactions between the bioligands. The introduction of metal ions to Glu-Spd metal-free system excludes the interaction between the bioligands, and the ligands centres that do not take part in the weak interactions in the adduct (Glu)H(Spd) are involved in the metallation, but the centres that took part in the weak interactions are not involved in the coordination in a heteroligand complex.
An Equation Decomposition Based Tailored Finite Point Method
for Linearized Incompressible Flow in Two-Dimensional Space
Authors: Li Ye , Han Houde , Huang Zhongyi 
Published: November 2014

Abstract
In this paper, we propose a tailored finite point method for linearized incompressible flow
(Oseen equations) in two dimensions based on the equation decomposition technique.
Unlike the usual vorticity-stream function formulation,
the velocities are decomposed to irrotational and rotational parts.
We only need to solve a system of two elliptic equations which are decoupled in the interior domain.
They are only coupled in boundary conditions.
When the domain is unbounded, we use the artificial boundary method to reduce the original
problem to a problem on a bounded computational domain.
Our finite point method has been tailored to some particular properties of the
problem. Therefore, our scheme satisfies the discrete maximum principle in the interior domain automatically.
We also give some remarks on more generally linearized incompressible flow,
and it can be considered as the first step to solve the incompressible Navier–Stokes problem.
Finally, several numerical examples show the efficiency and feasibility of our method
whatever the Reynolds number is small or large.
Reflections on the Study of Generations in Politics
Authors: Stoker Laura 
Published: November 2014

AbstractPolitical scientists often use the lens of generations when studying how the political views of citizens develop and how the polity as a whole evolves. This essay provides an overview of the topic: distinguishing work on lineage generations from that on political generations while also addressing their intersection; describing the Age-Period-Cohort (APC) framework used to study political generations and illustrating the difficulty of distinguishing cohort from age and period effects; and reflecting on the difficulty of explaining generational differences. The essay closes with a discussion of the many ways in which America’s youngest citizens are politically different from their elders.
More Than a Trace: Political Periods, Presidential Losers, and the Goldwater and McGovern Experiences
Authors: Busch Andrew E. 
Published: November 2014

AbstractPeriods of American politics marked by recognizable surges of ideas and activists are not driven solely by winners. Barry Goldwater and George McGovern were among the biggest losers in the history of American presidential elections, yet they produced surges that continue to affect American politics decades later. These losing candidates had three things in common: 1) Their candidacies represented more than individual attempts to gain the presidency, 2) they altered their parties’ electoral coalitions and strategies, and 3) they each made distinctive arguments that laid the groundwork for future party and movement successes.
Spatiotemporally characterizing urbantemperatures based on remote sensing and GISanalysis: a case study in the city of Saskatoon(SK, Canada)
Authors: Shen Li , Guo Xulin , Xiao Kang 
Published: November 2014

Abstract
The purpose of this study is to spatiotemporallyexplore the characteristics of urban temperaturesbased on multi-temporal satellite data and historical insitu measurements. As one of the most rapidly urbanizedcities in Canada, Saskatoon (SK) was selected as our studyarea. Surface brightness retrieving, Pearson correlation,linear regression modeling, and buffer analysis were appliedto different satellite datasets. The results indicatethat both Landsat and MODIS data can yield pronouncedestimations of daily air temperature with a significantlyadjusted R2 of 0.803 and 0.518 at the spatial scales of 120mand 1000 m, respectively. MODIS monthly LST data ishighly suitable for monitoring the trend of monthly urbanair temperature throughout summer (June, July, and August)due to a high average R2 of 0.8 (P<0.05), especiallyfor the warmest month (July). Our findings also reveal thatboth the Saskatchewan River and urban green spaces havestatistically significant cooling effects on the surroundingurban surface temperatures within 500 m and 200 m, respectively.In addition, a multiple linear regression modelwith four influential factors as independent variables canbe developed to estimate urban surface temperatures witha highest adjusted R2 of 0.649 and a lowest standard errorof 0.076.
Connections between the iterated (anti)derivatives of e

s·x
1/2
with respect to x and spherical modified Bessel functions of second kind
Authors: Ferrante Pierpaolo 
Published: November 2014

Abstract
This paper investigates the underlying structure of the n-th derivative of e

s·x
1/2
with respect to x. For n ∈ ℤ+, (dn
/d
xn
)e

s·x
1/2
can be expressed in terms of spherical modified Bessel functions of second kind in the complex plane. The representation holds for n ∈ ℤ-, where it represents the particular n-th antiderivative of e

s·x
1/2
with all n constants of integration equal to zero. Our results introduce new connections among mathematical applications and provide some Bessel properties.
Analysis and approximation of frictionless contact problems between two piezoelectric bodies with adhesion
Authors: Hadj Ammar Tedjani , Drabla Salah , Benabderrahmane Benyattou 
Published: November 2014

Abstract
We consider a mathematical frictionless contact problem between two electro-elastic bodies. The contact is modelled with normal compliance and adhesion. We provide a variational formulation for the problem and prove the existence of a unique weak solution. The proofs are based on arguments of time-dependent variational inequalities, the Cauchy–Lipschitz Theorem and the Banach Fixed-Point Theorem. Then, a discrete scheme is introduced based on the finite element method to approximate the spatial variable. Furthermore, we provide optimal a priori error estimates for the displacements, the electric potential and the bonding at the contact interface.
Hydrodeoxygenation of stearic acid for the production of “green” diesel
Authors: Stepacheva Antonina A. , Nikoshvili Linda Zh. , Sulman Esther M. , Matveeva Valentina G. 
Published: November 2014

Abstract
The current work is devoted to the second-generation biodiesel production via fatty acids catalytic hydrodeoxygenation (HDO). Pd-containing catalysts based on polymeric matrix of hypercrosslinked polystyrene (HPS) with different metal loading were investigated in the process. The catalysts were characterized by low-temperature nitrogen physisorption, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The selectivity of the process (regarding to n-heptadecane) reached up to 99% at 100% conversion. The optimal reaction conditions which allowed achieving high selectivity at 100% of stearic acid conversion were chosen.
Assumption Trade-Offs When Choosing Identification Strategies for Pre-Post Treatment Effect Estimation: An Illustration of a Community-Based Intervention in Madagascar
Authors: Weber Ann M. , van der Laan Mark J. , Petersen Maya L. 
Published: November 2014

AbstractFailure (or success) in finding a statistically significant effect of a large-scale intervention may be due to choices made in the evaluation. To highlight the potential limitations and pitfalls of some common identification strategies used for estimating causal effects of community-level interventions, we apply a roadmap for causal inference to a pre-post evaluation of a national nutrition program in Madagascar. Selection into the program was non-random and strongly associated with the pre-treatment (lagged) outcome. Using structural causal models (SCM), directed acyclic graphs (DAGs) and simulated data, we illustrate that an estimand with the outcome defined as the post-treatment outcome controls for confounding by the lagged outcome but not by possible unmeasured confounders. Two separate differencing estimands (of the pre- and post-treatment outcome) have the potential to adjust for a certain type of unmeasured confounding, but introduce bias if the additional identification assumptions they rely on are not met. In order to illustrate the practical impact of choice between three common identification strategies and their corresponding estimands, we used observational data from the community nutrition program in Madagascar to estimate each of these three estimands. Specifically, we estimated the average treatment effect of the program on the community mean nutritional status of children 5 years and under and found that the estimate based on the post-treatment estimand was about a quarter of the magnitude of either of the differencing estimands (0.066 SD vs. 0.26–0.27 SD increase in mean weight-for-age z-score). Choice of estimand clearly has important implications for the interpretation of the success of the program to improve nutritional status of young children. A careful appraisal of the assumptions underlying the causal model is imperative before committing to a statistical model and progressing to estimation. However, knowledge about the data-generating process must be sufficient in order to choose the identification strategy that gets us closest to the truth.
Amlodipine as an antiischemic drug is superior to
long acting nitrates
Authors: Koraćević Goran P. , Dakić Sonja S. , Veličković-Radovanović Radmila M. , Apostolović Svetlana R. , Krstić Nebojša H. , Tasić Ivan S. , Zdravković Marija D. , Antonijević Nebojša M. , Damnjanović Goran N. , Kostić Tomislav L. 
Published: November 2014

Abstract
European Society of Cardiology Guidelines cite
results of meta-analysis that the use of calcium channel
blockers results in fewer angina episodes per week vs.
long-acting nitrates. Moreover, we listed 12 reasons more
to prefer amlodipine over long-acting nitrates, especially
in stable angina pectoris patients with arterial hypertension.
It may be the way to decrease polypharmacy without
loosing efficacy. Some important advantages of amlodipine
versus long-acting nitrate(s) are: amlodipine also
treats hypertension, it helps reducing hypertensive target organ damages (e.g. left ventricular hypertrophy) and prevents
morning blood pressure surge. Moreover, amlodipine
can be given once daily (which improves adherence),
it produces neither tolerance nor rebound, it has less side
effects.
Eosinophilia-myalgia syndrome induced by excessive L-tryptophan intake from cashew nuts
Authors: Barešić Marko , Bosnić Dubravka , Bakula Marija , Žarković Kamelija 
Published: November 2014

AbstractEosinophilia is characterized by more than 0.5 x 10We report a case of 59-year old female who started a special weight-reducing diet regimen that included excessive cashew nut ingestion. Several months after she has presented with periferal blood eosinophilia and constitutional symptoms. Detailed work-up has not found elements for haematological, systemic autoimmune, neoplastic or infectious disease. She was diagnosed with eosinophilia- myalgia syndrome due to extreme L-tryptophan intake, a compound found in the cashew nut’s oil. She responded well to cashew nut withdrawal and steroid therapy. In the follow-up period she remained stable with normal eosinophil count and there was not a need for any specific therapy
Single state feedback stabilization of unified chaotic systems
and circuit implementation
Authors: Jing Chun-Guo , He Ping , Fan Tao , Li Yangmin , Chen Changzhong , Song Xin 
Published: November 2014

Abstract
This paper focuses on the single state feedback
stabilization problem of unified chaotic system and circuit
implementation. Some stabilization conditions will
be derived via the single state feedback control scheme.
The robust performance of controlled unified chaotic systems
with uncertain parameter will be investigated based
on maximum and minimum analysis of uncertain parameter,
the robust controller which only requires information
of a state of the system is proposed and the controller is
linear. Both the unified chaotic system and the designed
controller are synthesized and implemented by an analog
electronic circuit which is simpler because only three variable
resistors are required to be adjusted. The numerical
simulation and control in MATLAB/Simulink is then provided
to show the effectiveness and feasibility of the proposed
method which is robust against some uncertainties.
The results presented in this paper improve and generalize
the corresponding results of recent works.
Flame-resistant polymeric composite fibers based on nanocoating flame retardant: thermogravimetric study and production of α-Al2O3 nanoparticles by flame combustion
Authors: Moafi Hadi Fallah , Mostashari Seyed Morteza 
Published: November 2014

Abstract
In this work, we investigated the effect of aluminum chloride hexahydrate as a flame retardant coating on the flammability of cellulosic and polyester (polyethylene terephthalate, PET) fibers. The samples were characterized by several techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, vertical flammability test, limiting oxygen index (LOI), thermogravimetric analysis (TGA)and differential thermogravimetric (DTG). Aluminum chloride hexahydrate <100 nm in size has been found to form continuous and dispersed particles coatings on the fibers surface which shows efficient flame retardant properties. The optimum loadings to impart flame retardant properties were about 8.73–9.93% for cellulosic fiber and 20.30–23.48% for polyester fiber. Flame retardant activity was tested by a vertical flammability tester and LOI. XRD results of ashes revealed that after combustion of the treated specimens, the existence of α-Al2O3 nanoparticles was detected in the ashes of treated samples. TGA/DTG of pure, treated fibers and the salt was accomplished, and thermograms were compared and discussed. The results obtained are in favor of the free radical theory and also the dust or wall effect theory.