bluuebunny/crossref_metadata_2025_split huggingface dataset:
A novel phosphorus‐containing thermotropic liquid crystalline poly(ester‐imide) with high flame retardancy
Authors: Yang Mi , Chen Li , Zhao Cheng‐Shou , Huang Heng‐Zhen , Wang Jun‐Sheng , Wang Yu‐Zhong 
Published: January 2009

AbstractA novel phosphorus–nitrogen thermotropic liquid crystalline poly(ester‐imide) (PN‐TLCP) derived from p‐acetoxybenzoic acid (ABA), terephthalic acid (TPA), acetylated 2‐(6‐oxide‐6H‐dibenz<c,e><1,2>oxa phosphorin‐ 6‐yl)‐1,4‐dihydroxy phenylene (DOPO‐AHQ) and N,N'‐hexane‐1,6‐diylbis(trimellitimide) was prepared by melt transesterification. The chemical structure, the mesophase behavior, and the thermal properties of the copolymer were investigated with Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance spectroscopy (1H NMR), elemental analysis, wide‐angle X‐ray diffraction (WAXD), hot‐stage polarized light microscopy (PLM), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). PN‐TLCP exhibited a nematic mesophase with a strong birefringence at a low and broad mesomorphic temperature ranging from 220 to 350°C, an initial flow temperature as low as about 190°C and a glass transition temperature of about 160°C. PN‐TLCP has also good thermal stability, high char residues and excellent flame retardancy (limiting oxygen index, LOI = 71 and UL‐94 V‐0 rating). Copyright © 2009 John Wiley & Sons, Ltd.
Characteristics of paint systems prepared from dammar with the addition of natural pigment
Authors: Omar N. M. , Ahmad A. H. 
Published: January 2009

AbstractAdhesion and electrochemical properties of paint system prepared from dammar binder or binder from Dipterocarpus grandifolius with the addition of natural pigment have been investigated. In this work, carotenoid pigment obtained from Capsicum annum (dried chili pepper) was added into the mixture of dammar resin and acrylic polyol resin to form the organic paint system. Five different paint systems were formulated on the basis of various concentrations of dammar resin, and their viscosities were measured by using Brookefield Viscometer. The paint systems were proofed on Aluminum steel Q‐panels as a substrate. The cured paint systems were then evaluated by using the crosshatch adhesion method to test their adhesion properties according to ASTM D3359 standards. The corrosion potential property of paint was characterized by using electrochemical impedance spectroscopy (EIS) while the coated substrate was exposed to 3% NaCl for 30 days. Comparative results have been presented in terms of number of damage grids for the crosshatch test in each sample at different viscosity conditions and also regarding the ability of the coated sample to resist the corrosion potential. The result shows that the paint system with a composition of 35% dammar (CD35%) possessed the best adhesion performance compared to other CD paint compositions. Furthermore, CD35% also had higher corrosion resistance after 30 days of exposure in the 3% NaCl solution. The decrease in coating resistance values is associated with the electrolyte penetration into the coating system. The results showed that the developed organic paint system prepared from dammar improved the adhesion and electrochemical properties of a paint system. Addition of natural pigment to the formulation may enhance the attractiveness and vibrancy of the color. Copyright © 2009 John Wiley & Sons, Ltd.
Gas transport properties of asymmetric polyimide membranes prepared by plasma‐based ion implantation
Authors: Tezuka Teppei , Kobayashi Tomohiro , Muraoka Daigo , Nagaoka Shoji , Suzuki Yoshiaki , Kawakami Hiroyoshi 
Published: January 2009

AbstractIn this study, we report the gas permeance and selectivity of the asymmetric polyimide membrane prepared by plasma‐based ion implantation (PBII). The asymmetric polyimide membranes were prepared using a dry–wet phase inversion process, and the surface skin layer on the membrane was implantated by He ions at 2.5 keV. The asymmetric membranes treated by PBII were measured using a high vacuum apparatus with a Baratron absolute pressure gauge at 76 cmHg and 35°C. The (O2/N2) and (CO2/CH4) selectivities in the He+‐implanted asymmetric membrane at 60 sec resulted in 1.5 and 1.8 time increases, respectively, when compared to those of the asymmetric membrane before PBII. On the other hand, the O2 and CO2 permeances in the asymmetric membrane after PBII decreased with an increase in the He+ treatment time. In this paper, we addressed, for the first time, the gas permeation behavior of the asymmetric polyimide membranes prepared by PBII. Copyright © 2009 John Wiley & Sons, Ltd.
Preparation and characterization of asymmetric polyethersulfone (PES) membranes
Authors: Amirilargani Mohammad , Mohammadi Toraj 
Published: January 2009

AbstractFlat‐sheet asymmetric polyethersulfone (PES) membranes were prepared from polyethersulfone (PES)/ polyethylene glycol (PEG)/ N‐methyl‐2‐pyrrolidone (NMP) system via phase inversion induced by immersion precipitation in water coagulation bath. Effects of propionic acid (PA) as a non‐solvent additive (NSA) on morphology and performance of the membranes prepared from PES/PEG 6000/NMP system in water coagulation bath were investigated. The cross section morphology of the membranes was studied by scanning electron microscopy (SEM). In addition, performance of the membranes was studied by water content measurements and separation experiments using pure water and human serum albumin (HSA) protein solution as feeds. According to SEM analysis, it was found out that the NSA has a significant influence on the structure of the skin layer and the sublayer. The obtained results indicated that addition of PA to the casting solution decreases permeation flux of the prepared membranes. Copyright © 2009 John Wiley & Sons, Ltd.
Hydrophobically modified poly (acrylic acid) using calix[4]arene derivative. Ionophoric properties and extraction abilities toward alkali metal cations
Authors: Hajipour A. R. , Habibi S. , Ruoho A. E. 
Published: January 2009

Abstractp‐t‐Butyl calix[4]arene diol (distal cone) (1) was grafted with poly (acrylic acid) (PAA) to obtain hydrophobically modified PAA (PAA‐C) bearing calixarene moieties. The grafting method includes the direct esterification reaction of PAA with calixarene diol 1 which was carried out in a system of tosyl chloride (TsCl), pyridine (Py), and N,N‐dimethylformamide (DMF). The grafting yield was studied using different molar ratios of PAA to calix[4]arene diol 1, temperature, and reaction time. The chemical composition of the PAA‐C was studied by IR and 1H NMR spectroscopy. Also, the morphology of PAA‐C was evaluated by scanning electron microscopy. The PAA‐C had different solubility and thermal properties. The extraction ability measurements of modified PAA toward alkali metal cations (Na+, K+, Cs+) and Ag+ showed a remarkable efficiency and selectivity of PAA‐C toward Na+. The main goal of this work was to design hydrophobically modified PAA with binding ability that is suitable for ion selective membranes and chemical sensor devices such as ion‐specific electrodes, semipermeable membranes, and quartz microbalances. Copyright © 2009 John Wiley & Sons, Ltd.
JNK is constitutively active in mantle cell lymphoma: cell cycle deregulation and polyploidy by JNK inhibitor SP600125
Authors: Wang Miao , Atayar Çiğdem , Rosati Stefano , Bosga‐Bouwer Anneke , Kluin Philip , Visser Lydia 
Published: January 2009

AbstractMantle cell lymphoma (MCL) is characterized by genetic instability and a poor prognosis. Many blastoid variants are (hypo)tetraploid and have an even worse prognosis. We investigated the role of signalling by mitogen‐activated protein kinases (MAPKs) in MCL. As compared to normal tonsil B cells, MCL cells showed higher activation of the JNK MAPK in both an MAPK array and a sandwich ELISA assay. Immunohistochemistry showed overexpression of phospho (p)‐JNK (Thr183/Tyr185) in 30 of 37 MCL cases. Inhibition of p‐JNK with SP600125 resulted in growth arrest in all four MCL cell lines (Jeko‐1, HBL‐2, UPN‐1, Granta‐519), which could be partly reversed by the addition of CD40L and IL‐4. Furthermore, SP600125 led to G2/M phase arrest on day 1 and a striking increase in endoreduplication on day 2 and day 3, which was confirmed by karyotype analysis. G2/M arrest was associated with down‐regulation of EGR1 and p21 protein expression. SP600125‐induced polyploidy could be blocked by the BCL‐2 inhibitor YC137. These data suggest that constitutive JNK activity is necessary to promote proliferation and maintain diploidy in MCL. JNK inhibition leads to cell cycle deregulation and endoreduplication, mimicking the tetraploid state seen in a subset of MCL cases. Thus, our data also provide an experimental model to study polyploid MCL cells. Copyright © 2009 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
Rituximab as monotherapy and in addition to reduced CHOP in children with primary immunodeficiency and non‐Hodgkin lymphoma
Authors: Shabbat Shimrit , Aharoni Jonas , Sarid Liat , Ben‐Harush Miriam , Kapelushnik Joseph 
Published: January 2009

AbstractChildren with primary immunodeficiency or chromosomal breakage syndromes are at increased risk of developing non‐Hodgkin lymphomas; they cannot tolerate standard chemotherapy regimens. We report two children with diffuse, large, B‐cell lymphoma; one had ataxia telangiectasia and one had common variable immunodeficiency. Both were given rituximab, 1 as monotherapy and 1 in combination with a reduced CHOP regimen. Complete remission was obtained in each patient. Use of rituximab as a first‐line monotherapy or in conjunction with reduced chemotherapy should be considered to reduce cytotoxic effects. Pediatr Blood Cancer 2009;52:664–666. © 2009 Wiley‐Liss, Inc.
Optimal care for the child with cancer: A summary statement from the SIOP working committee on psychosocial issues in pediatric oncology
Authors: Spinetta John J. , Jankovic Momcilo , Masera Giuseppe , Ablin Arthur R. , Barr Ronald D. , Arush Myriam Weyl Ben , D'Angio Giulio J. , Van Dongen‐Melman Jeanette , Eden Tim , Epelman Claudia , Martins Antonio Gentil , Greenberg Mark L. , Kosmidis Helen Vasiliatou , Oppenheim Daniel , Zeltzer Paul M. 
Published: January 2009

AbstractSince its foundation in 1991, the SIOP Working Committee on Psychosocial Issues in Paediatric Oncology1 has developed and published 12 sets of Guidelines for health‐care professionals treating children with cancer and their families. Those elements considered essential in the process of cure and care of children with cancer are summarized in this document as a formal statement, developed at the 2007 SIOP annual meeting in Mumbai. Elaboration of the concepts with detailed strategies for practice can be found in the referenced guidelines [1–12] and in a companion publication [13]. This article is a summary of what practitioners considered critical elements in the optimal care of the child with cancer, with the goal of stimulating a broader application of these elements throughout the SIOP membership. Pediatr Blood Cancer 2009;52:904–907. © 2009 Wiley‐Liss, Inc.
VIP hypersecretion as primary or secondary syndrome in neuroblastoma: A retrospective study by the Société Française des Cancers de l'Enfant (SFCE)
Authors: Bourdeaut Franck , de Carli Emilie , Timsit Sandra , Coze Carole , Chastagner Pascal , Sarnacki Sabine , Delattre Olivier , Peuchmaur Michel , Rubie Hervé , Michon Jean 
Published: January 2009

AbstractBackgroundNeuroblastic tumors (NTs) are occasionally associated with watery diarrhea, due to Vasoactive Intestinal Peptide (VIP) secretion. Most reports are single cases and suggest a great homogeny within this sub‐group of NTs.ProceduresWe conducted a retrospective analysis of the French experience of NTs associated with watery diarrhea due to VIP‐secretion. VIP secretion was confirmed by seric dosage and/or immunohistochemistry.ResultsTwenty‐two patients met the diagnostic criteria between 1988 and 2007. Most of patients suffered from weight loss and metabolic disorders. In 16 cases, digestive symptoms preceded the diagnosis of the tumor (“Primary VIP secreting NTs”); 15 were localized and all showed a differentiated histology. Interestingly, in another 6 patients with high‐risk NT, diarrhea occurred at the time of chemotherapy or retinoic acid therapy (“Secondary VIP secreting NTs”). Differentiation in response to treatment was documented in 4 cases. In all cases, only surgical excision of the tumor was able to control the digestive symptoms. Twenty children are alive and 13 are disease‐free.ConclusionVIP secreting NTs are usually associated with differentiation; they can also secondarily arise from a high‐risk tumor upon treatment. Primary surgery constitutes first‐line treatment. Pediatr Blood Cancer 2009;52:585–590. © 2009 Wiley‐Liss, Inc.
Second trimester prenatal ultrasound for the detection of pregnancies at increased risk of Trisomy 18 based on serum screening
Authors: Cho Richard C. , Chu Phillip , Smith‐Bindman Rebecca 
Published: January 2009

AbstractObjectiveTo describe ultrasound findings in fetuses with Trisomy 18.MethodsProspective population‐based cohort study of second trimester ultrasound among Californian women who were at increased risk of chromosome abnormality based on serum screening between November 1999 and April 2001. Structural anomalies plus the following soft markers were assessed: nuchal fold thickening, choroid plexus cyst (CPC), echogenic intracardiac focus, echogenic bowel, renal pyelectasis, clenched hands; clinodactyly; short femur, short humerus and a single umbilical artery (SUA).ResultsOverall, 8763 women underwent ultrasound evaluation, including 56 whose fetuses had Trisomy 18. Ultrasound anomalies were seen in 89% of Trisomy 18 fetuses, as compared with 14% of normal fetuses. If the genetic sonogram was normal (no structural anomaly and no soft marker), the risk was reduced by approximately 90%. The ultrasound soft markers were typically seen in conjunction with structural anomalies in affected fetuses and in the absence of a structural anomaly, most isolated ultrasound soft markers were not associated with Trisomy 18. The only exception was an isolated CPC, seen as the only finding in 11% of fetuses with Trisomy 18.ConclusionsIf the genetic sonogram is used as a sequential test following serum biochemistry, a normal ultrasound study reduces the likelihood of Trisomy 18 substantially even if a woman has abnormal serum biochemistry. The presence of an isolated CPC raises the risk, but not high enough to prompt invasive testing. Copyright © 2009 John Wiley & Sons, Ltd.
Preparation of metal oxide or metal nanoparticles in silica via metal coordination to organofunctional trialkoxysilanes
Authors: Schubert Ulrich 
Published: January 2009

AbstractOrganofunctional silanes of the type (RO)3Si(CH2)nX, where X is a coordinating organic group, can be used to coordinate metal ions or metal alkoxide moieties (M). Sol–gel processing of the single‐source precursors thus obtained, (RO)3Si(CH2)nXM, followed by controlled degradation of the organic tethers and the coordinating groups, makes possible the preparation of MOx/SiO2 or M/SiO2 nanocomposites with a controllable nanoparticle size. Copyright © 2009 Society of Chemical Industry
Proteotypic profiling of LHCI from Chlamydomonas reinhardtii provides new insights into structure and function of the complex
Authors: Stauber Einar J. , Busch Andreas , Naumann Bianca , Svatoš Aleš , Hippler Michael 
Published: January 2009

AbstractWe used isotope dilution MS to measure the stoichiometry of light‐harvesting complex I (LHCI) proteins with the photosystem I (PSI) core complex in the green alga Chlamydomonas reinhardtii. Proteotypic peptides served as quantitative markers for each of the nine gene products (Lhca1–9) and for PSI subunits. The quantitative data revealed that the LHCI antenna of C. reinhardtii contains about 7.5 ± 1.4 subunits. It further demonstrated that the thylakoid LHCI population is heterogeneously composed and that several lhca gene products are not present in 1:1 stoichiometries with PSI. When compared with vascular plants, LHCI of C. reinhardtii possesses a lower proportion of proteins potentially contributing to far‐red fluorescence emission. In general, the strategy presented is universally applicable for exploring subunit stoichiometries within the C. reinhardtii proteome.
Nurse–patient communication in cancer care: does responding to patient's cues predict patient satisfaction with communication
Authors: Uitterhoeve Ruud , Bensing Jozien , Dilven Eefje , Donders Rogier , deMulder Pieter , van Achterberg Theo 
Published: January 2009

AbstractObjective: The aim is to investigate the relationship between nurses' cue‐responding behaviour and patient satisfaction.Methods: One hundred patient–nurse conversations about present concerns were videotaped and patients' expression of emotional cues and nurses' cue responses were coded using the Medical Interview Aural Rating Scale. Nurses (N=34) and patients (N=100) were recruited from seven oncology inpatient clinics from a University Medical Centre.Results: A mixed‐model analysis was conducted to examine whether cue responding was related with patient satisfaction with the conversation, after adjusting for confounding variables and correlation due to repeated measure of each nurse. Nurses' cue responding was independently related to patient satisfaction. Controlling for the level of cue responding, palliatively treated patients were more satisfied with the communication than curatively treated patients.Conclusions: This study provides evidence that nurses' cue‐responding behaviour is appreciated by the patients. Future studies might focus on the effect of improved cue‐responding skill on more distal outcome measures, such as identification of concerns, mood and coping behaviour. Copyright © 2009 John Wiley & Sons, Ltd.
The association between individual attachment patterns, the perceived social support, and the psychological well‐being of Turkish informal caregivers
Authors: Kuscu M. Kemal , Dural Uzay , Önen Pιnar , Yaşa Yeşim , Yayla Mete , Basaran Gül , Turhal Serdar , Bekiroğlu Nural 
Published: January 2009

AbstractBackground: This study aimed to investigate the relations among the psychological well‐being (i.e. depression and state/trait anxiety levels), attachment patterns (i.e. secure, ambivalent, avoidant), and the perceived social support from family/friends/significant others of caregivers of cancer patients in Turkey.Methods: Fifty‐one caregivers of adult cancer patients were recruited from the oncology outpatient clinic of the Marmara Medical School Hospital in Istanbul. Caregivers were assessed with the Adult Attachment Scale, the Beck Depression Inventory, State–trait Anxiety Inventories, and the Multidimensional Scale of Perceived Social Support.Results: Stepwise multiple regression analysis indicated that depression was predicted by ambivalent attachment and the perceived social support from family. The support from significant others was the significant predictor of trait anxiety and the caregivers' ambivalent attachment score was the significant predictor of state anxiety.Conclusions: We assert that ambivalent attachment pattern could confer a vulnerability to psychological distress in cancer caregivers. Assessing the psychological experiences and needs of caregivers and being aware of possible risk factors (such as attachment patterns) and protective factors (social support network) for depression and anxiety might be helpful for successful programmes and interventions that support the caregivers of cancer patients. Copyright © 2009 John Wiley & Sons, Ltd.
Sun protection and skin self‐examination in melanoma survivors
Authors: Mujumdar Urvi J. , Hay Jennifer L. , Monroe‐Hinds Yvette C. , Hummer Amanda J. , Begg Colin B. , Wilcox Homer B. , Oliveria Susan A. , Berwick Marianne 
Published: January 2009

AbstractObjectives: Patients diagnosed with melanoma are at risk for developing recurrent and second primary disease. Skin self‐examination (SSE) and sun protection are standard clinical recommendations to minimize risk. In this study we examined performance of these behaviors in individuals with melanoma drawn from the general population.Methods: Potential participants (N=148) with a first primary melanoma diagnosed in 2000 were identified through a population‐based cancer registry in New Jersey, USA. One hundred and fifteen individuals participated in a 30 min telephone interview concerning behavioral adherence with SSE and sun protection, self‐efficacy for performing these behaviors, and perceived risk of developing another skin cancer. We utilized logistic regression to estimate potential associations of demographic, medical, and psychosocial factors with SSE and sun protection, respectively.Results: Seventeen percent of subjects reported performing comprehensive SSE at least once every two months and 23% engaged in regular sun protection. Utilization of SSE was related to the presence of moles (OR=4.2, 95% CI: 1.1–15) and higher SSE self‐efficacy (OR=14.4, 95% CI: 1.9–112). Regular sun protection was related to older age (>60 years; OR=3.3, 95% CI: 1.3–8.7), being female (OR=2.8, 95% CI: 1.1–7.3), and higher sun protection self‐efficacy (OR=5.0, 95% CI: 1.4–18). These factors remained significant in multivariate models.Conclusion: In this group of primary melanoma survivors, the rates of SSE and sun protection are comparable to, but do not exceed, general population estimates. This study provides justification for further research to address barriers to prevention and control behaviors in melanoma survivors. Copyright © 2009 John Wiley & Sons, Ltd.
Predictors of depressive symptoms 12 months after surgical treatment of early‐stage breast cancer
Authors: Den Oudsten Brenda L. , Van Heck Guus L. , Van der Steeg Alida F. W. , Roukema Jan A. , De Vries Jolanda 
Published: January 2009

AbstractObjective: Nearly half of the women with breast cancer (BC) show depressive symptoms in the first year after diagnosis. This has a major impact on patients' lives. Therefore, the aim of this study was to identify predictors of depressive symptoms 12 months after surgical treatment. Furthermore, the stability of depressive symptoms across 12 months was investigated for persons scoring high versus low/moderately on agreeableness, trait anxiety, and neuroticism.Methods: From the 609 women with an abnormality in the breast, 223 appeared to have early‐stage BC. A depressive symptoms questionnaire (Center for Epidemiological Studies—Depression Scale) was completed before diagnosis and 1, 3, 6, and 12 months after surgical treatment. In addition, patients completed questionnaires on personality (State Trait Anxiety Inventory, Neuroticism‐Extraversion‐Openness‐Five Factor Inventory), fatigue (Fatigue Assessment Scale), and aspects of quality of life (World Health Organization Quality of Life assessment instrument—100).Results: Before diagnosis and 1 year later, 40.9% and 27.8% of the women, respectively, scored above the established cut‐off score for depressive symptoms. Depressive symptoms significantly improved in this period. Patients reported higher scores, when they had a breast‐conserving therapy (BCT), scored low on agreeableness, scored high on neuroticism, or reported higher scores on depressive symptoms or fatigue before diagnosis. Other clinical and socio‐demographic factors did not predict depressive symptoms.Conclusions: Besides BCT, fatigue, and depressive symptoms, personality, especially neuroticism and agreeableness, predicted depressive symptoms 1 year after surgical treatment. Therefore, it is important to screen patients on these characteristics in order to prevent long‐term depressive symptoms. Copyright © 2009 John Wiley & Sons, Ltd.