bluuebunny/crossref_metadata_2025_split huggingface dataset:
Higher order resonance stability of triangular libration points for radiating primaries in ER3BP
Authors: Narayan Ashutosh , Singh Nutan 
Published: March 2015

<p>The main aim of this paper is to study the existence of resonance and stability of the triangular equilibrium points in the framework of ER3BP when both the attracting bodies are sources of radiation at w<sub>1</sub>=w<sub>2</sub>, w<sub>1</sub>=2w<sub>2</sub>, w<sub>1</sub>=3w<sub>2</sub> in both circular and elliptical cases .A practical application of this model could be seen in the case of binary systems ( Achird, Luyten, α Cen- AB, Kruger 60, Xi Bootis). The study is carried out both analytically and numerically by considering various values of radiation pressures and around binary systems .In both cases (CR3BP and ER3BP) it is found that w<sub>1</sub>=w<sub>2</sub> corresponds to the boundary region of the stability for the system, whereas the other two cases w<sub>1</sub>=2w<sub>2</sub>, w<sub>1</sub>=3w<sub>2</sub> correspond to the resonant cases. In order to investigate the stability, the Hamiltonian is normalized up to the fourth order by using linear canonical transformation of variables. Then KAM theorem is applied to investigate the stability for different values of radiation pressures in general and around the binary systems in particular. Finally, simulation technique is applied to study the correlation between radiation pressures and mass ratio in circular case; mass ratio and eccentricity in elliptical case. It is found that all the binary systems considered are stable. Also, it is found that except for some values of the radiation pressure parameters and for m&lt;=m<sub>c</sub> =0.0385209 the triangular equilibrium points are stable.</p>
Can a healthy youth development clinic serving latino families be youth friendly and family oriented? A mixed-methods evaluation
Authors: Svetaz Maria Veronica , Garcia-Huidobro Diego , Hurtado Ghaffar Ali , Trebs Laura , Hernandez Stephanie , Bartels Anna , Garzon Bibiana , Allen Michele 
Published: March 2015

Abstract
Background: Parenting adolescents poses challenges that are exacerbated by immigration. Aqui Para Ti [Here for You] (APT) is a clinic-based, healthy youth development program that provides family-centered care for Latino youth and their families who are mostly immigrants from Mexico and Latin America.
Objectives: To present the APT model of care and report the experiences of youth and their parents.
Subjects: APT patients between 11 and 24 years (n=30) and parents (n=15). Most youth patients were female, between 11 and 17 years, and from Mexico. Most parents were female, 40 years or younger, and from Mexico.
Methods: Youth participants completed a survey and participated in an individual semi-structured interview, and parent participants attended focus groups. Descriptive statistics summarized survey data. Interviews and focus groups were transcribed and analyzed in Spanish using content analysis by two independent coders. Quantitative and qualitative findings were integrated using side-by-side comparisons. Researchers not involved in the coding process contributed with the interpretation of the findings.
Results: Youth and parents were satisfied with the services received at APT. Youth felt listened to by their providers (100%), felt they could trust them (100%) and valued comprehensive care. Eighty-seven percent reported that their experiences at APT were better than at other clinics. Parents valued the family parallel care, confidentiality, family-centeredness, and the cultural inclusivity of the APT services.
Conclusion: Patients and parents were satisfied with the services offered at APT. Family parallel care could be a positive alternative to deliver confidential and family-centered services to immigrant families.
The poetic mind: a producer-oriented approach to literature and art
Authors: Kolaiti Patricia 
Published: March 2015

Abstract
This paper aims to shift theoretical attention from the reception to the production end of literature, and from the literary text per se to the action-process of which it is an outcome. It focuses on the internal activities that bring about literary, or more generally, artistic behavior and suggests that a certain action-process is literature – and the resulting object a literary text – when it stands in a causal relation to a specialised type of creative mental state. This state will be termed the artistic thought state. The idea that literary texts are causally linked to artistic thought states may help provide answers to some persistent ontological questions in literary and art study (e.g. about the ontological status of literary objects as opposed to their linguistic ‘mere thing’ equivalents), and delineate new potential for research in the linguistic study of literature.
Paroxysmal nocturnal hemoglobinuria revisited: news on pathophysiology, clinical course and treatment
Authors: Körper Sixten , Höchsmann Britta , Schrezenmeier Hubert 
Published: March 2015

Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare benign clonal disorder of hematopoiesis. Its etiologic basis is the clonal dominance of a PIGA-mutated hematopoietic progenitor that gives rise to GPI-deficient blood cells that are unable to express complement inhibitors like CD55 or CD59. These cells are prone to complement-induced hemolysis. In classic hemolytic PNH, granulocyte clone sizes can be up to 90% or more. Much progress has been made during the last years in understanding the interrelations of complement-dependent hemolysis; its consequences like thrombosis, renal failure or pulmonal hypertension; and possible treatment strategies. To gain clinical relevance, the PNH clone has to make a relevant contribution to blood cell generation; however, a minimal clone size as a threshold for the occurrence of symptoms such as thrombosis, dyspnea, chest or abdominal pain cannot be given. Such symptoms can be seen in a relevant proportion of patients with clone size smaller than 10%. The driver for the clonal dominance of the PIGA-mutated hematopoiesis is still not clear. Recently, data about coexisting mutations in cancer genes have been published and new mechanisms for autoimmunity have been presented. The success of eculizumab in the treatment of PNH patients has stimulated the development of a variety of new strategies for complement inhibition. This review will focus on the most important findings in pathophysiology, clinical course and treatments during the last years.
Series expansions for convolutions of Pareto distributions
Authors: Nguyen Quang Huy , Robert Christian Y. 
Published: March 2015

Abstract
Asymptotic expansions for the tails of sums of random variables with
regularly varying tails are mainly derived in the case of identically
distributed random variables or in the case of random variables with the
same tail index. Moreover, the higher-order terms are often given under the
condition of existence of a moment of the distribution. In this paper, we
obtain infinite series expansions for convolutions of Pareto distributions
with non-integer tail indices. The Pareto random variables may have
different tail indices and different scale parameters. We naturally find the
same constants for the first terms as given in the previous asymptotic
expansions in the case of identically distributed random variables, but we
are now able to give the next additional terms. Since our series expansion
is not asymptotic, it may be also used to compute the values of quantiles of
the distribution of the sum as well as other risk measures such as the Tail
Value at Risk. Examples of values are provided for the sum of at least five
Pareto random variables and are compared to those determined via previous
asymptotic expansions or via simulations.
Sr(Hg1–x
Sn
x
)4: variations of the EuIn4-type structure
Authors: Wendorff Marco , Röhr Caroline 
Published: March 2015

Abstract
Starting from the new compound SrHg2Sn2, which is isoelectronic and also isotypic to the indide SrIn4, the successive substitution of Sn against the electron poor Hg has been investigated in a combined synthetic, crystallographic, and bond-theoretical study. Along the 1:4 section Sr(Hg1–x
Sn
x
)4 a series of compounds with Sn contents x between 0.5 and 0.2 were synthesized from stoichiometric ratios of the elements. Their crystal structures, which represent three different variants of the EuIn4-type structure, have been determined using single crystal X-ray data. The most electron rich compound SrHg2Sn2 crystallizes in the original EuIn4-type [monoclinic, C2/m, a = 1257.9(14), b = 490.1(4), c = 997.8(12) pm, β = 117.60(6)°, Z = 4, R1 = 0.0838], with a fully ordered Hg and Sn distribution. The four atom sites form two different folded ladders with an alternating Hg/Sn distribution. Like in the KHg2-type, the ladders are connected via six-membered rings. In between, double tubes with an internal Sn–Sn bond are connected via further Sn–Sn bonds to form sheets similar to those observed in SiAs. The most electron-poor phase SrHg3.2Sn0.8 crystallizes in a strongly distorted variant of this structure [a = 1172.8(4), b = 497.9(2), c = 1010.0(4) pm, β = 118.860(7)°, Z = 4, R1 = 0.0549]. Herein, additional Hg–Hg bonds are formed, and the open tubes are distorted into rods of edge-sharing rhombohedra resembling the structure motifs of elemental Hg. At an intermediate valence electron (v.e.) number, i.e., in SrHg2.5Sn1.5, an isomorphous tripled superstructure (a = 2704.4(5), b = 493.87(7), c = 1197.1(2) pm, β = 90.838(14)°, Z = 12, R1 = 0.0475) occurs, where the building blocks of the two variants of the EuIn4-type structure alternate in a 1:2 ratio. The bonding situation and the “coloring,” i.e., the Hg/Sn distribution in the polyanionic network, are discussed considering the different sizes of the atoms and the charge distribution (Bader AIM charges), which has been calculated within the framework of the FP-LAPW density functional theory for SrHg2Sn2 and the model compounds “SrHg3Sn” and “SrHg4.”
Role for Endogenous BDNF in Endocannabinoid-Mediated Long-Term Depression at Neocortical Inhibitory Synapses
Authors: Zhao Liangfang , Li-Wen Yeh Mason , Levine Eric S. 
Published: March 2015

AbstractThe endogenous cannabinoid (endocannabinoid) system is an important regulator of synaptic function. Endocannabinoids acutely modulate inhibitory and excitatory transmission, and also mediate long-term depression at GABAergic and glutamatergic synapses. Typically, endocannabinoid synthesis and release is stimulated by depolarization-induced calcium influx and/or activation of phospholipase-C (PLC) signaling triggered by mGluR activation. Recently it has been shown that brain-derived neurotrophic factor (BDNF) can also induce endocannabinoid release. Although there is growing evidence for cross-talk between BDNF and endocannabinoid signaling, little is known about the functional relevance of these interactions. In the present studies, we examined BDNF−endocannabinoid interactions in regulating activity-dependent long-term depression at inhibitory synapses (iLTD). We found that theta burst stimulation (TBS) in layer 2/3 of mouse somatosensory cortical slices can induce a form of endocannabinoid-mediated iLTD that is independent of metabotropic glutamate receptor (mGluR) activation. This endocannabinoid-dependent iLTD, however, requires endogenous BDNF-trkB signaling, as it is blocked by a trk tyrosine kinase inhibitor and by a trkB receptor antagonist, and also requires activation of diacylglycerol lipase (DAG-lipase, DGL). In addition, endocannabinoid-mediated iLTD can be induced by combining a subthreshold concentration of exogenous BDNF with weak TBS stimulation that by itself is insufficient to induce iLTD. Taken together, our results suggest that TBS can induce the release of endogenous BDNF, which triggers DGL-dependent endocannabinoid mobilization and cannabinoid receptor-dependent iLTD at layer 2/3 cortical synapses.
A Novel Approach for Studying Histone H1 Function in Vivo
Authors: Siriaco Giorgia , Deuring Renate , Mawla Gina D , Tamkun John W 
Published: March 2015

Abstract
In this report, we investigate the mechanisms that regulate Drosophila histone H1 expression and its association with chromatin in vivo. We show that histone H1 is subject to negative autoregulation and exploit this result to examine the effects of mutations of the main phosphorylation site of histone H1.
Microshear Bond Strength of Adhesives to Enamel Remineralized Using Casein Phosphopeptide Agents
Authors: Mobarak EH , Ali N , Daifalla LE 
Published: March 2015

SUMMARY

Objective
This study was carried out to evaluate the difference between bonding to demineralized enamel and remineralized enamel using casein phosphopeptide–amorphous calcium phosphate with fluoride (CPP-ACFP) or without fluoride (CPP-ACP) compared to normal enamel. Another aim was to test if the newly introduced Single Bond Universal adhesive system would show better bonding to any enamel condition in comparison to the other tested adhesive systems.

Methods
The lingual enamel surfaces of 40 non carious human third molars were divided into four main groups according to the enamel condition (ground normal enamel [negative control]; demineralized enamel [positive control]; and remineralized enamel with CPP-ACP or with CPP-ACFP, respectively). Within each main group, the lingual enamel surface of each tooth was sectioned into three slabs, resulting in 30 slabs that were distributed into three subgroups according to the adhesive system utilized (Clearfil S3 Bond Plus, Single Bond Universal, or G-aenial Bond). Two resin composite microcylinder buildups were made on each enamel slab using Filtek Z350 XT. The μSBS was evaluated at a crosshead speed of 0.5 mm/min. Modes of failure were detected using an environmental scanning electron microscope at 300× magnification.

Results
The two-way analysis of variance with repeated measures revealed a significant effect for the enamel condition. However, there was no significant effect for the type of adhesive system. The interaction between the enamel condition and the type of adhesive system was also not significant. Modes of failure were mainly adhesive except for the demineralized enamel. It showed a mixed type of failure, in which cohesive failure in enamel was recorded.

Conclusions
All single-step self-etch adhesives revealed comparable μSBS values to ground enamel and enamel remineralized with CPP-ACP or CPP-ACFP. Bonding to demineralized enamel was ineffective. With any enamel condition, no tested single-step self-etch adhesive was superior in its bonding.
Determination of the effective thermal conductivity of solid fuels by the laser flash method
Authors: Kosowska-Golachowska Monika , Gajewski Władysław , Musiał Tomasz 
Published: March 2015

Abstract
In this study, a new laser flash system was proposed for the determination of the thermal conductivity of brown coal, hard coal and anthracite. The main objective of the investigation was to determine the effect of coal rank, composition, physical structure and temperature on thermal conductivity. The solid fuels tested were medium conductors of heat whose determined thermal conductivities were in the range of 0.09 to 0.23W/(mK) at room temperature. The thermal conductivity of the solid fuels tested typically increased with the rank of coal and the measurement temperature. The results of this study show that the physical structure of solid fuels and temperature have a dominant effect on the fuels’ thermal conductivity.
Comparative study of heat transfer and pressure drop during flow boiling and flow condensation in minichannels
Authors: Mikielewicz Dariusz , Andrzejczyk Rafał , Jakubowska Blanka , Mikielewicz Jarosław 
Published: March 2015

Abstract
In the paper a method developed earlier by authors is applied to calculations of pressure drop and heat transfer coefficient for flow boiling and also flow condensation for some recent data collected from literature for such fluids as R404a, R600a, R290, R32,R134a, R1234yf and other. The modification of interface shear stresses between flow boiling and flow condensation in annular flow structure are considered through incorporation of the so called blowing parameter. The shear stress between vapor phase and liquid phase is generally a function of nonisothermal effects. The mechanism of modification of shear stresses at the vapor-liquid interface has been presented in detail. In case of annular flow it contributes to thickening and thinning of the liquid film, which corresponds to condensation and boiling respectively. There is also a different influence of heat flux on the modification of shear stress in the bubbly flow structure, where it affects bubble nucleation. In that case the effect of applied heat flux is considered. As a result a modified form of the two-phase flow multiplier is obtained, in which the nonadiabatic effect is clearly pronounced.
The effect of applied control strategy on the current-voltage correlation of a solid oxide fuel cell stack during dynamic operation
Authors: Szmyd Janusz S. , Komatsu Yosuke , Brus Grzegorz , Ghigliazza Francesco , Kimijima Shinji , Ściążko Anna 
Published: March 2015

Abstract
This paper discusses the transient characteristics of the planar type SOFC cell stack, of which the standard output is 300 W. The transient response of the voltage to the manipulation of an electric current was investigated. The effects of the response and of the operating condition determined by the operating temperature of the stack were studied by mapping a current-voltage (I-V) correlation. The current-based fuel control (CBFC) was adopted for keeping the fuel utilization factor at constant while the value of the electric current was ramped at the constant rate. The present experimental study shows that the transient characteristics of the cell voltage are determined by primarily the operating temperature caused by the manipulation of the current. Particularly, the slope of the I-V curve and the overshoot found on the voltage was remarkably influenced by the operating temperature. The different values of the fuel utilization factor influence the height of the settled voltages. The CBFC has significance in determining the slope of the I-V characteristic, but the different values ofthe fuel utilization factor does not affect the slope as the operating temperature does. The CBFC essentially does not alter the amplitude of the overshoot on the voltage response, since this is dominated by the operating temperature and its change is caused by manipulating the current.
Experimental investigation of the ecological hybrid refrigeration cycle
Authors: Cyklis Piotr , Kantor Ryszard , Ryncarz Tomasz , Górski Bogusław , Duda Roman 
Published: March 2015

Abstract
The requirements for environmentally friendly refrigerants promote application of CO2 and water as working fluids. However there are two problems related to that, namely high temperature limit for CO2 in condenser due to the low critical temperature, and low temperature limit for water being the result of high triple point temperature. This can be avoided by application of the hybrid adsorption-compression system, where water is the working fluid in the adsorption high temperature cycle used to cool down the CO2 compression cycle condenser. The adsorption process is powered with a low temperature renewable heat source as solar collectors or other waste heat source. The refrigeration system integrating adsorption and compression system has been designed and constructed in the Laboratory of Thermodynamics and Thermal Machine Measurements of Cracow University of Technology. The heat source for adsorption system consists of 16 tube tulbular collectors. The CO2 compression low temperature cycle is based on two parallel compressors with frequency inverter. Energy efficiency and TEWI of this hybrid system is quite promising in comparison with the compression only systems.
Condensation enhancement by means of electrohydrodynamic techniques
Authors: Butrymowicz Dariusz , Karwacki Jarosław , Trela Marian 
Published: March 2015

Abstract
Short state-of-the-art on the enhancement of condensation heat transfer techniques by means of condensate drainage is presented in this paper. The electrohydrodynamic (EHD) technique is suitable for dielectric media used in refrigeration, organic Rankine cycles and heat pump devices. The electric field is commonly generated in the case of horizontal tubes by means of a rod-type electrode or mesh electrodes. Authors proposed two geometries in the presented own experimental investigations. The first one was an electrode placed just beneath the tube bottom and the second one consisted of a horizontal finned tube with a double electrode placed beneath the tube. The experimental investigations of these two configurations for condensation of refrigerant R-123 have been accomplished. The obtained results confirmed that the application of the EHD technique for the investigated tube and electrode arrangement caused significant increase in heat transfer coefficient. The condensation enhancement depends both on the geometry of the electrode system and on the applied voltage.
Contributions to Persistence Theory
Authors: Du Dong 
Published: March 2015

AbstractPersistence theory discussed in this paper is an application of algebraic topology (Morse Theory [29]) to Data Analysis, precisely to qualitative understanding of point cloud data, or PCD for short. PCD can be geometrized as a filtration of simplicial complexes (Vietoris-Rips complex [25] [36]) and the homology changes of these complexes provide qualitative information about the data. Bar codes describe the changes in homology with coefficients in a fixed field. When the coefficient field is ℤ
Occurrence of the silver fir (Abies alba Mill.) butt rot in protected areas
Authors: Niemtur Stanisław , Chomicz Elżbieta , Kapsa Mariusz 
Published: March 2015

Abstract
The aim of the study was to analyse butt rot incidences in silver fir stands of selected nature reserves and national parks. The study included 11 stands in Carpathian forests and for comparison 4 stands outside the Carpathians. To identify butt rot in fir trees, we used the non-invasive method of acoustic tomography. We tested 30 randomly selected fir trees in each of the 15 stands using Picus Sonic tomography to determine butt rot occurrence and to assess the proportion (%) of healthy wood in cross-sections of the tree trunk. The results indicate significant differences in the frequency of butt rot in silver fir at the individual level as well as the population level. This variability in frequency was not dependent on geographical location of the investigated stands
Afforestation and secondary succession
Authors: Krawczyk Robert 
Published: March 2015

Abstract
Secondary succession is a long and complicated natural process returning forests to post agricultural lands, whereas afforestation is an attempt to speed up this process by planting trees. Massive afforestation in the twentieth century brought an increase in forest area in Poland along with management problems in these areas due to disturbances caused by root diseases. Therefore it appears necessary to employ successional processes more fully in order to create sustainable forest ecosystems.