bluuebunny/crossref_metadata_2025_split huggingface dataset:
Periodontal Treatment Decreases Levels of Antibodies to Porphyromonas gingivalis and Citrulline in Patients With Rheumatoid Arthritis and Periodontitis
Authors: Okada Moe , Kobayashi Tetsuo , Ito Satoshi , Yokoyama Tomoko , Abe Asami , Murasawa Akira , Yoshie Hiromasa 
Published: May 2013

Background: Porphyromonas gingivalis has been implicated as an etiologic agent of rheumatoid arthritis (RA) because of the expression of peptidylarginine deiminase. The present study evaluates whether periodontal treatment may affect serum antibodies to P. gingivalis and citrulline levels in relation to disease activity of RA.Methods: Fifty‐five patients with RA were randomly assigned to receive oral hygiene instruction and supragingival scaling (treatment group, n = 26) or no periodontal treatment (control group, n = 29). Periodontal and rheumatologic parameters and serum levels of cytokine and inflammatory markers citrulline and immunoglobulin (Ig)G to P. gingivalis were examined at baseline and 8 weeks later.Results: Both groups did not differ statistically in any parameters except percentage of sites with probing depth and clinical attachment level ≥4 mm at baseline. The treatment group exhibited a significantly greater decrease in disease activity score including 28 joints using C‐reactive protein (DAS28‐CRP) (P = 0.02), serum levels of IgG to P. gingivalis hemin binding protein (HBP)35 (P = 0.04), and citrulline (P = 0.02) than the control group. Serum levels of IgG to P. gingivalis HBP35 were significantly correlated positively with those of anti‐cyclic citrullinated peptide antibodies (P = 0.0002). The same correlation was obtained between serum levels of IgG to P. gingivalis–sonicated extracts and those of rheumatoid factor (P = 0.02).Conclusions: These results suggest that supragingival scaling decreases DAS28‐CRP and serum levels of IgG to P. gingivalis HBP35 and citrulline in patients with RA. These observations may reflect a role of P. gingivalis in the protein citrullination, which is related to the pathogenesis of RA.
Saliva and Serum Levels of B‐Cell Activating Factors and Tumor Necrosis Factor‐α in Patients With Periodontitis
Authors: Gümüş Pınar , Nizam Nejat , Lappin David F. , Buduneli Nurcan 
Published: May 2013

Background: B‐lymphocytes play a central and critical role in the adaptive immune response against invading pathogens. This study evaluates saliva and serum levels of APRIL (a proliferation‐inducing ligand), B‐cell activating factor (BAFF), tumor necrosis factor‐α (TNF‐α), interleukin (IL)‐6, and IL‐10 in patients with chronic periodontitis (CP) or aggressive periodontitis (AgP) and periodontally healthy individuals.Methods: Twenty‐five patients with AgP, 20 patients with CP, and 20 periodontally healthy individuals were included. Smoking status was recorded, and all individuals were divided into non‐smokers and smokers. Saliva and serum samples were collected before clinical periodontal measurements. APRIL, BAFF, TNF‐α, IL‐6, and IL‐10 levels in serum and saliva samples were determined by enzyme‐linked immunosorbent assay. Statistical analysis was performed using multivariate analysis of variance and bivariate correlation.Results: Serum and saliva levels of TNF‐α, APRIL, BAFF, IL‐6, and IL‐10 were similar in CP and AgP groups. Serum levels of TNF‐α, APRIL, and BAFF and saliva levels of BAFF were significantly higher in periodontitis groups than healthy controls (P <0.05). Non‐smokers with CP or AgP had lower levels of saliva TNF‐α and APRIL and serum APRIL and IL‐6 than smokers with CP or AgP (P <0.05). Saliva APRIL and serum TNF‐α and IL‐6 levels were significantly higher in healthy smokers than healthy non‐smokers (P <0.05). Clinical periodontal parameters correlated positively with TNF‐family cytokines and negatively with IL‐10 (P <0.05).Conclusions: Within the limits of this study, it may be suggested that elevated salivary and serum TNF‐α, APRIL, and BAFF in patients with periodontitis may contribute to the dominance of B cells in periodontitis lesions. Moreover, higher levels in healthy smokers than non‐smoking counterparts may play a role in detrimental effects of smoking on periodontal tissues.
Retinopathy in Youth With Type 2 Diabetes Participating in the TODAY Clinical Trial
Authors:   TODAY Study Group
Published: May 2013

OBJECTIVE
To determine the prevalence of retinopathy in 517 youth with type 2 diabetes of 2–8 years duration enrolled in the TODAY study.

RESEARCH DESIGN AND METHODS
Retinal photographs were graded centrally for retinopathy using established standards.

RESULTS
Retinopathy was identified in 13.7% of subjects. Prevalence increased with age, diabetes duration, and mean HbA1c. Subjects in the highest BMI tertile had the lowest prevalence of retinopathy.

CONCLUSIONS
Prevalence of retinopathy and its association with HbA1c and diabetes duration is similar to that previously reported in youth with type 1 diabetes and in adults with type 2 diabetes of known duration. The mechanism underlying the reduced risk of retinopathy in the most obese individuals is unknown. Follow-up of this cohort will help define the natural history of retinopathy in youth with type 2 diabetes.
Global and exponential attractors for a Caginalp type phase-field problem
Authors: Bangola Brice 
Published: May 2013

Abstract
We deal with a generalization of the Caginalp phase-field model associated with Neumann boundary conditions. We prove that the problem is well posed, before studying the long time behavior of solutions. We establish the existence of the global attractor, but also of exponential attractors. Finally, we study the spatial behavior of solutions in a semi-infinite cylinder, assuming that such solutions exist.
The BIP Trilogy (Bipolarization, Inequality and Polarization): One Saga but Three Different Stories
Authors: Deutsch Joseph , Fusco Alessio , Silber Jacques 
Published: May 2013

AbstractInequality, bi-polarization and polarization are related but distinct concepts aiming at analysing the income distribution. This paper first recalls the main differences between these three notions of inequality, bipolarization and polarization and then suggests using the socalled Shapley decomposition to show that the various income sources have a different impact on these three types of indicators. Our empirical investigation, based on 2008 data for Luxembourg, shows in fact that, in the case of the so-called zero income Shapley decomposition, inequality in Luxembourg is strongly related to income from capital while bipolarization is mainly due to the distribution of income from work and polarization to that of the income from work and transfers.
Balloon Venoplasty for Liver Failure Due to Stenosis of the Left Hepatic Vein After Right Tri-Segmentectomy
Authors: Imai Daisuke , Furukawa Kenei , Shiba Hiroaki , Wakiyama Shigeki , Gocho Takeshi , Yanaga Katsuhiko 
Published: May 2013

Abstract
A 41-year-old male patient with hepatitis B underwent right tri-segmentectomy and total caudate lobectomy for a huge hepatocellular carcinoma associated with complete occlusion of the inferior vena cava with thrombosis of the infrahepatic inferior vena cava due to tumor compression. Five months later, he was readmitted for ascites and hyperbilirubinemia. Venography revealed stenosis and tortuosity of the left hepatic vein and the inferior vena cava, for which balloon angioplasty of the left hepatic vein and the inferior vena cava was performed using an 8-mm and 10-mm balloon, respectively. The left hepatic venous pressure decreased from 65 mmHg to 25 mmHg after dilatation. The patient made a satisfactory recovery thereafter and remains well with normal liver functions and without ascites. Balloon angioplasty may be useful for liver failure due to hepatic vein stenosis after hepatic resection.
Tris(acetylacetonato)rhodium(III)‐Catalyzed α‐Alkylation of Ketones, β‐Alkylation of Secondary Alcohols and Alkylation of Amines with Primary Alcohols
Authors: Satyanarayana Ponnam , Reddy Ganapam Manohar , Maheswaran Hariharasharma , Kantam Mannepalli Lakshmi 
Published: May 2013

AbstractThe tris(acetylacetonato)rhodium(III) catalyst is shown to be a versatile catalyst in the presence of DABCO (1,4‐diazabicyclo[2.2.2]octane) as ligand for the α‐alkylation of ketones followed by transfer hydrogenation, for the one‐pot β‐alkylation of secondary alcohols with primary alcohols and for the alkylation of aromatic amines in the presence of an inorganic base in toluene.
Rock art as material culture: a case study on Uneapa Island, West New Britain, Papua New Guinea
Authors: Byrne Sarah 
Published: May 2013

AbstractThis paper identifies and investigates the distribution patterns, physical properties and cultural associations of the four types of rock art found on Uneapa Island, West New Britain, Papua New Guinea. It generates a series of hypotheses relating to the production and consumption of cupules, three‐dimensional, curvilinear and rectilinear rock art, and how this may have changed through time.
Measurement of the Quantum Conductance of Germanium by an Electrochemical Scanning Tunneling Microscope Break Junction Based on a Jump‐To‐Contact Mechanism
Authors: Xie Xufen , Yan Jiawei , Liang Jinghong , Li Jijun , Zhang Meng , Mao Bingwei 
Published: May 2013

AbstractWe present quantum conductance measurements of germanium by means of an electrochemical scanning tunneling microscope (STM) break junction based on a jump‐to‐contact mechanism. Germanium nanowires between a platinum/iridium tip and different substrates were constructed to measure the quantum conductance. By applying appropriate potentials to the substrate and the tip, the process of heterogeneous contact and homogeneous breakage was realized. Typical conductance traces exhibit steps at 0.025 and 0.05 G0. The conductance histogram indicates that the conductance of germanium nanowires is located between 0.02 and 0.15 G0 in the low‐conductance region and is free from the influence of substrate materials. However, the distribution of conductance plateaus is too discrete to display distinct peaks in the conductance histogram of the high‐conductance region.
Luminescence behavior of Li2Sr1‐3x/2EuxSiO4 red phosphors for LED applications
Authors: Sun Xin‐Yuan , Lin Liang‐Wu , Liu Guang‐Yao , Liu Xin‐Gen , Wu Ai‐Jin , Huang Shi‐Ming 
Published: May 2013

ABSTRACTRed‐emitting Li2Sr1‐3x/2EuxSiO4 0≤x≤0.5) phosphors were synthesized at 900°C in air by a solid‐state reaction. The synthesized phosphors were characterized by X‐ray powder diffraction, photoluminescence (PL) excitation (PLE) and PL spectra. The results from the PLE spectra suggest that the strong 394 nm excitation peak associated with the 5L6 state of Eu3+ ions is of significance for near ultraviolet pumped white light‐emitting diodes and solid‐state lighting. It is also noted that the position of the charge transfer state of Eu3+ ions shifts towards the higher energy side (blue shift) by increasing the content of Eu3+ ions. The predominant emissions of Eu3+ ions under 394 nm excitation are observed at 580, 593, 614, 656 and 708 nm, which are attributed to the 5D0 → 7FJ (J = 0, 1, 2, 3 and 4), respectively. The PL results reveal that the optimal content of the red‐emitting Li2Sr1‐3x/2EuxSiO4 phosphors is x = 0.475. Simulation of the white light excited by 394 nm near ultraviolet light has also been carried out for its potential white light‐emitting diode applications. Copyright © 2013 John Wiley & Sons, Ltd.
A highly efficient and selective turn‐on fluorescent sensor for Hg2+, Ag+ and Ag nanoparticles based on a coumarin dithioate derivative
Authors: El‐Shekheby Heba A. , Mangood Ahmed H. , Hamza Salem M. , Al‐Kady Ahmed S. , Ebeid El‐Zeiny M. 
Published: May 2013

ABSTRACTBased on chelation‐enhanced fluorescence, a new fluorescent coumarin derivative probe 3(1‐(7‐hydroxy‐4‐methylcoumarin)ethylidene)hydrazinecarbodithioate for Hg2+, Ag+ and Ag nanoparticles is reported. Fluorescent probe acts as a rapid and highly selective “off–on” fluorescent probe and fluorescence enhancement by factors 5 to12 times was observed upon selective complexation with Hg2+, Ag+ and Ag nanoparticles. The molar ratio plots indicated the formation of 1:1 complexes between Hg2+ and Ag+ with the probe. The linear response range covers a concentration range 0.1 × 10–5–1.9 × 10–5 mol/L, 0.1 × 10–5–2.3 × 10–5 mol/L and 0.146 × 10–12–2.63 × 10–12 mol/L for Hg2+, Ag+ and Ag nanoparticles, respectively. The interference effect of some anions and cations was also tested. Copyright © 2013 John Wiley & Sons, Ltd.
Transdisciplinary Study of Sustainable Enterprise
Authors: Shrivastava Paul , Ivanaj Silvester , Persson Sybil 
Published: May 2013

ABSTRACTOur research explores more holistic ways of understanding and creating sustainable enterprises. Enterprises and business school scholars are two primary actors in this research endeavor. Enterprises are moving towards sustainability but with a partial and selective understanding of global sustainability. Business school scholars generally study sustainability in their respective functional areas, such as management, accounting, finance and marketing, with some notable exceptions. We suggest that transdisciplinarity offers a unique real‐world problem‐solving framework that crosses disciplinary boundaries and the academic–practitioner divide. We explore the nature of transdisciplinarity and its application to corporate sustainability. We argue that enterprise sustainability requires trans‐functional, trans‐disciplinary, trans‐stakeholder, trans‐aesthetic and trans‐human knowledge that is possible through transdisciplinarity. We provide an example of transdisciplinary work in art and sustainable enterprise. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment
Measurement of Phase Distribution in Bubble Columns
Authors: Schlusemann Linda , Zheng Guanghua , Grünewald Marcus 
Published: May 2013

AbstractBlasensäulen stellen einen wichtigen Mehrphasenapparat für Reaktionen oder reaktive Trennaufgaben in der Verfahrenstechnik dar. Zur Auslegung von Blasensäulen werden häufig Korrelationen zur Beschreibung eingesetzt, die Werte wie Gasleerrohrgeschwindigkeit oder den Gasgehalt berücksichtigen. Aufgrund der komplexen Wechselwirkungen an der Phasengrenzfläche reichen diese experimentell gut bestimmbaren, integralen Parameter häufig nicht aus. Im Rahmen des Beitrags werden Messverfahren zur Bestimmung der Phasenanteile von Gas und Flüssigkeit über dem gesamten Querschnitt von Blasensäulen im Technikumsmaßstab vorgestellt. Dabei wird insbesondere der in eigenen Experimenten eingesetzte Gittersensor diskutiert.
On central matrix based methods in dimension reduction
Authors: Wei LIN 
Published: May 2013

AbstractDimension reduction for regression analysis has been one of the most popular topics in the past two decades. It sees much progress with the introduction of the inverse regression, centered around the two key methods, sliced inverse regression (SIR) and sliced average variance estimation (SAVE). It is well known that SIR works poorly when the inverse conditional expectation is close to being nonrandom. SAVE and its many generalizations, which do not suffer from this drawback, lag behind SIR in many other circumstances. Usually a certain weighted hybrid of SIR and SAVE is necessary to improve overall performance. However, it is difficult to find the optimal mixture weights in a hybrid, and most such hybrid methods, as well as SAVE, require the restrictive constant (conditional) variance condition. We propose a much weaker condition and a new accompanying algorithm. This enables us to create several new central matrices that perform very favourably to existing central matrix based methods without referring to hybrids. The Canadian Journal of Statistics 41: 421–438; 2013 © 2013 Statistical Society of Canada
Chiral Transition‐Metal Complexes of Phenanthro‐Annulated N‐Heterocyclic Carbenes – Synthesis and Reactivity
Authors: Mormul Jaroslaw , Steimann Manfred , Maichle‐Mössmer Cäcilia , Nagel Ulrich 
Published: May 2013

AbstractA straightforward route to chiral AgI and RuII complexes with phenanthrene‐fused N‐heterocyclic carbene (NHC) ligands is described. The chiral imidazole derivative 1 was prepared in high yield by a simple one‐pot reaction starting from commercially available 9,10‐phenanthrenequinone. Imidazolium salts 2 and 3 were obtained by alkylation of 1 with alkyl bromides and subsequent anion exchange with Amberlyst A21 resin. Deprotonation with KOtBu led to the corresponding free carbenes 4 and 5, which were isolated without dimerization. Stirring carbene 4 in acetonitrile resulted in CH insertion. AgI complexes were obtained by treatment of the imidazolium salts with Ag2O and showed an interesting low‐temperature behavior in the 1H NMR spectrum. Transmetalation with a Ru precursor led to the corresponding RuII complexes.
Amide Formation Using In Situ Activation of Carboxylic Acids with [Et2NSF2]BF4
Authors: Mahé Olivier , Desroches Justine , Paquin Jean‐François 
Published: May 2013

AbstractThe formation of amides through the in situ activation of carboxylic acids with [Et2NSF2]BF4 is presented. A wide range of carboxylic acids and amines were used to produce the corresponding amides in up to 99 % yield. The reaction of hindered amines was also possible in the presence of 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU) under slightly modified conditions. An enantiopure carboxylic acid and amine were both shown to react without racemization.
SOFIE project – 3D shaking table test on a seven‐storey full‐scale cross‐laminated timber building
Authors: Ceccotti Ario , Sandhaas Carmen , Okabe Minoru , Yasumura Motoi , Minowa Chikahiro , Kawai Naohito 
Published: May 2013

SUMMARYMulti‐storey buildings made of cross‐laminated timber panels (X‐lam) are becoming a stronger and economically valid alternative in Europe compared with traditional masonry or concrete buildings. During the design process of these multi‐storey buildings, also their earthquake behaviour has to be addressed, especially in seismic‐prone areas such as Italy. However, limited knowledge on the seismic performance is available for this innovative massive timber product.On the basis of extensive testing series comprising monotonic and reversed cyclic tests on X‐lam panels, a pseudodynamic test on a one‐storey X‐lam specimen and 1D shaking table tests on a full‐scale three‐storey specimen, a full‐scale seven‐storey building was designed according to the European seismic standard Eurocode 8 and subjected to earthquake loading on a 3D shaking table. The building was designed with a preliminary action reduction factor of three that had been derived from the experimental results on the three‐storey building.The outcomes of this comprehensive research project called ‘SOFIE – Sistema Costruttivo Fiemme’ proved the suitability of multi‐storey X‐lam structures for earthquake‐prone regions. The buildings demonstrated self‐centring capabilities and high stiffness combined with sufficient ductility to avoid brittle failures. The tests provided useful information for the seismic design with force‐based methods as defined in Eurocode 8, that is, a preliminary experimentally based action reduction factor of three was confirmed. Valid, ductile joint assemblies were developed, and their importance for the energy dissipation in buildings with rigid X‐lam panels became evident. The seven‐storey building showed relatively high accelerations in the upper storeys, which could lead to secondary damage and which have to be addressed in future research. Copyright © 2013 John Wiley & Sons, Ltd.
Bone morphogenetic proteins‐immobilized polydioxanone porous particles as an artificial bone graft
Authors: Kim Tae Ho , Oh Se Heang , Chun So Young , Lee Jin Ho 
Published: May 2013

AbstractBone morphogenetic proteins (BMPs)‐immobilized polydioxanone (PDO)/Pluronic F127 porous particles were prepared as a bone graft using a melt‐molding particulate‐leaching method, and the sequential binding of heparin and BMPs (BMP‐2 and BMP‐7, single or dual) onto the porous particles. The prepared PDO/Pluronic F127 porous particles gradually degraded with time, with ∼30% of the initial particle weight remaining after 16 weeks. The degradation rate of the PDO/Pluronic F127 porous particles may parallel the bone‐healing rate. The BMPs were easily immobilized onto the pore surfaces of PDO/Pluronic F127 particles via heparin binding and were released in a sustained manner for up to 21 days, regardless of BMP type. The BMPs (single BMP‐2 or dual BMP‐2/BMP‐7)‐immobilized porous particles were effective forin vitroosteogenesis of bone marrow stem cells (BMSCs), as analyzed by alkaline phosphatase activity, calcium content, time polymerase chain reaction using specific markers for osteogenesis (Type I collagen, osteocalcin, osteopotin, and RunX2), and immunohistochemical staining. The BMPs (single BMP‐2 or dual BMP‐2/BMP‐7)‐immobilized porous particles were also effective in promoting new bone formation, as analyzed by the preliminary animal study using a full‐thickness skull defect model of Sprague–Dawley rats (microcomputed tomography). The synergistic effect of dual BMPs on the osteogenesis of BMSCs and bone regeneration was not significant in our system. The BMP‐2 or dual BMPs (BMP‐2/BMP‐7)‐immobilized PDO/Pluronic F127 porous particles may be a promising candidate as a bone graft for the delayed and insufficient bone healing in clinical fields. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 1264–1274, 2014.
Russians in Treatment: The Evidence Base Supporting Cultural Adaptations
Authors: Jurcik Tomas , Chentsova‐Dutton Yulia E. , Solopieieva‐Jurcikova Ielyzaveta , Ryder Andrew G. 
Published: May 2013

ObjectiveDespite large waves of westward migration, little is known about how to adapt services to assist Russian‐speaking immigrants. In an attempt to bridge the scientist‐practitioner gap, the current review synthesizes diverse literatures regarding what is known about immigrants from the Former Soviet Union.MethodRelevant empirical studies and reviews from cross‐cultural and cultural psychology, sociology, psychiatric epidemiology, mental health, management, linguistics, history, and anthropology literature were synthesized into three broad topics: culture of origin issues, common psychosocial challenges, and clinical recommendations.ResultsRussian speakers probably differ in their form of collectivism, gender relations, emotion norms, social support, and parenting styles from what many clinicians are familiar with and exhibit an apparent paradoxical mix of modern and traditional values. While some immigrant groups from the Former Soviet Union are adjusting well, others have shown elevated levels of depression, somatization, and alcoholism, which can inform cultural adaptations.ConclusionsTestable assessment and therapy adaptations for Russians were outlined based on integrating clinical and cultural psychology perspectives.
Compact and efficient RGB to RGBW data conversion method and its application in OLED microdisplays
Authors: Can Chi , Underwood Ian 
Published: May 2013

AbstractIn many electronic information displays, a colour pixel comprises three spatially distinct sub‐pixels containing red, green and blue (RGB) colour filters. The option of adding a fourth white (W) sub‐pixel that allows light to pass through unfiltered can significantly improve the optical efficiency of the pixel that, in turn, increases the power efficiency of the display. Such a display is called an RGBW display, and the required transformation of data format from incoming RGB to pixel RGBW is termed as “RGB to RGBW conversion.” This paper reports a method of RGB to RGBW conversion that is highly compact and efficient in terms of system resources while retaining image quality. It processes incoming data through a new colour space conversion algorithm in order to reduce the average power consumption with no noticeable visual artefacts. We explain the method and demonstrate its cost‐effective and power‐effective implementation for the specific case of an organic light emitting diode microdisplay.