bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modelisation du depot de paraffine lors d'un ecoulement ascendant de petrole
Authors: Boucetta Rachid , Kessal Mohand 
Published: February 2010

AbstractA study on the upslope flow of heated petroleum paraffin was conducted based on motion equations and heat transfer, which were rewritten in a completely dimensionless form to analyze the influence of temperature on the position of the deposit point and its change over time. A numerical resolution of the new equation system, based on the Runge‐Kutta 4th order method, was performed for two current practical cases to avoid the line obstruction problem.
Electronic and Vibrational Coherence Dynamics in a Cyanine Dye Studied Using a Few‐Cycle Pulsed Laser
Authors: Wang Ying , Kobayashi Takayoshi 
Published: February 2010

AbstractWe report the relaxation times of electronic and vibrational coherence in the cyanine dye 1,1′,3,3,3′,3′‐hexamethyl‐4,4′,5,5′‐dibenzo‐2,2′‐indotricarbocyanine, measured using a 7.1 fs pulsed laser. The vibrational phase relaxation times are found to be between 380 and 680 fs in the ground and lowest excited singlet states. The vibrational dephasing times of the 294, 446, and 736 cm−1 modes are relatively long among the six modes associated with excited‐state wave packets. The slower relaxations are explained in terms of a coupled triplet of vibrational modes, which preserves coherence by forming a tightly bound group to satisfy the condition of circa conservation of vibrational energy. Using data from the negative‐time range (i.e., when the probe pulse precedes the pump pulse), the electronic phase relaxation time is found to be 31±1 fs. The dynamic vibrational mode in the excited state (1171 cm−1), detected in the positive‐time range, is also studied from the negative‐time traces under the same experimental conditions.
Theoretical and Spectroscopic Investigation of Coordination Compounds from P4S3, Copper(I) Iodide and W(CO)5
Authors: Balázs Gabor , Biegerl Andreas , Gröger Christian , Wachter Joachim , Weihrich Richard , Zabel Manfred 
Published: February 2010

AbstractThe formation of a new type of organometallic‐inorganic hybrid coordination polymer from P4S3·W(CO)5 (1) and CuI has been studied. The structure of {P4S3·W(CO)5}(CuI) (3) has been verified by the combination of spectroscopic (IR, Raman, 31P MAS NMR) and X‐ray diffraction methods. Theoretical studies of β‐P4S3, P4S3·W(CO)5 (1), 1D‐(P4S3)(CuI) (2), and 3D‐(P4S3)(CuI)3 (4), which may be considered as potential building blocks of 3, were carried out on the DFT level in the crystalline phase. The comparison of calculated and measured vibration modes of the P4S3 cage allows the unequivocal assignment of the recorded Raman shifts between 200 and 480 cm–1 and the determination of the degree of integration of P4S3 within the one‐dimensional stacks of 2 or copper iodide networks of 3 and 4.
Involvement of osteopontin upregulation on mesangial cells growth and collagen synthesis induced by intermittent high glucose
Authors: Sun Jiazhong , Xu Yancheng , Deng Haohua , Sun Suxin , Dai Zhe , Sun Yanlei 
Published: February 2010

AbstractGlucose fluctuations are strong predictor of diabetic vascular complications. We explored the effects of constant and intermittent high glucose on the proliferation and collagen synthesis of cultured rat mesangial cells. Furthermore, the possible involvement of osteopontin (OPN) was assessed. In rat mesangial cells cultured in 5, 25, or 5 mmol/L alternating with 25 mmol/L glucose in the absence or presence of neutralizing antibodies to OPN, β3 integrin receptor and β5 integrin receptor, the cell proliferation, collagen synthesis, and the expression of OPN and type IV collagen were assessed. In cultured mesangial cells, treatment with constant or intermittent high glucose significantly increased [3H]thymidine incorporation in a time‐dependent manner. A modest increase was observed at 12 h, and further deteriorated afterwards, and reached the maximum incorporation at 48 h. Treatment with constant high glucose for 48 h resulted in significant increases in [3H]thymidine incorporation, cell number, [3H]proline incorporation, mRNA, and protein levels of type IV collagen and OPN compared with mesangial cells treated with the normal glucose, which were markedly enhanced in cells exposed to intermittent high glucose medium. In addition, neutralizing antibodies to either OPN or its receptor β3 integrin but not neutralizing antibodies to β5 integrin can effectively prevented proliferation and collagen synthesis of mesangial cells induced by constant or intermittent high glucose. Intermittent high glucose exacerbates mesangial cells growth and collagen synthesis by upregulation of OPN expression, indicating that glycemic variability have important pathological effects on the development of diabetic nephropathy, which is mediated by the stimulation of OPN expression and synthesis. J. Cell. Biochem. 109: 1210–1221, 2010. © 2010 Wiley‐Liss, Inc.
In vitro investigation of friction under edge‐loading conditions for ceramic‐on‐ceramic total hip prosthesis
Authors: Sariali Elhadi , Stewart Todd , Jin Zhongming , Fisher John 
Published: February 2010

AbstractEdge‐loading generates higher wear rates in ceramic‐on‐ceramic total hip prosthesis (THP). To investigate the friction coefficient (FC) in these conditions, three alumina ceramic (Biolox Forte) 32 mm‐diameter components were tested using a hip friction simulator. The cup was positioned with a 75° abduction angle to achieve edge‐loading conditions. The motion was first applied along the edge and then across the edge of the cup. First, tests were conducted under lubricated conditions with 25% bovine serum. Next, to simulate an extremely high contact pressure, the tests were run with the addition of a third body alumina ceramic chip inserted between the edge of the cup and the head. Engineering blue was used to analyze the contact area. Reference values were determined using a 0° cup abduction angle. Edge loading was achieved. The FC increased by three‐ to sixfold when the motion was applied along the edge, and by 70% when the motion was applied across the edge. However, the FC value was still low (about 0.1), which is similar to metal‐on‐metal THP. With the third body alumina ceramic particle inserted, the FC was 26 times higher than in the ideal conditions and intermittent squeaking occurred. High cup abduction angles may generate edge‐loading and an increase in the friction coefficient for ceramic THP. © 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 28:979–985, 2010
Disparate prevalence estimates of PTSD among service members who served in Iraq and Afghanistan: Possible explanations
Authors: Ramchand Rajeev , Schell Terry L. , Karney Benjamin R. , Osilla Karen Chan , Burns Rachel M. , Caldarone Leah Barnes 
Published: February 2010

AbstractThe authors reviewed 29 studies that provide prevalence estimates of posttraumatic stress disorder (PTSD) among service members previously deployed to Operations Enduring and Iraqi Freedom and their non‐U.S. military counterparts. Studies vary widely, particularly in their representativeness and the way PTSD is defined. Among previously deployed personnel not seeking treatment, most prevalence estimates range from 5 to 20%. Prevalence estimates are generally higher among those seeking treatment: As many as 50% of veterans seeking treatment screen positive for PTSD, though much fewer receive a PTSD diagnosis. Combat exposure is the only correlate consistently associated with PTSD. When evaluating PTSD prevalence estimates among this population, researchers and policymakers should carefully consider the method used to define PTSD and the population the study sample represents.
Incapacitated, forcible, and drug/alcohol‐facilitated rape in relation to binge drinking, marijuana use, and illicit drug use: A national survey
Authors: McCauley Jenna L. , Ruggiero Kenneth J. , Resnick Heidi S. , Kilpatrick Dean G. 
Published: February 2010

AbstractThis study examined the relation between rape and substance use problems as a function of three legally recognized forms of rape: forcible, incapacitated, and drug/alcohol facilitated rape. Data were collected via structured telephone interview within a national household sample of U.S. women aged 18–34 years (n = 1,998). Lifetime experience of incapacitated rape was associated with increased odds of past‐year binge drinking, marijuana use, and illicit drug use. Lifetime history of forcible rape and drug/alcohol facilitated rape were associated with increased odds of marijuana and illicit drug use. Findings highlight the importance of including incapacitated and drug/alcohol facilitated rape in trauma history assessments, particularly among substance abusing populations, and have implications for secondary prevention and treatment of women with victimization histories.
Measurement invariance of posttraumatic stress disorder symptoms among U.S. military personnel
Authors: Mansfield Alyssa J. , Williams Jason , Hourani Laurel L. , Babeu Lorraine A. 
Published: February 2010

AbstractStudies have not examined the factor structure or measurement invariance of posttraumatic stress disorder (PTSD) symptomatology using population‐based data. Confirmatory factor analysis of the PTSD Checklist‐Civilian Version (PCL‐C) was conducted in a representative sample of U.S. active duty military personnel (N = 15,593). Consistent with prior research, a 4‐factor model consisting of reexperiencing, avoidance, emotional numbing, and arousal factors was superior to four alternative models. Measurement invariance was found for factor loadings, but not observed item intercepts when comparing personnel with and without a recent deployment (≤12 months). Findings indicate differences in the level of observed responses across deployment subgroups that exceed what would be expected for individuals with similar PCL latent factors scores. Implications of results are discussed.
Synthesis and Crosslinking of L‐DOPA Containing Polypeptide Vesicles
Authors: Holowka Eric P. , Deming Timothy J. 
Published: February 2010

AbstractThe synthesis and self‐assembly of DOPA containing diblock copolypeptides into spherical vesicles is described. DOPA residues are naturally abundant in mussel adhesive proteins and are responsible for extensive covalent crosslinking of these materials upon oxidation. We found that vesicles could be formed from copolypeptides containing different amounts of DOPA substituted into hydrophobic segments, up to 100% DOPA content. The DOPA containing vesicles were covalently crosslinked in water using an oxidizing agent, in a process similar to the crosslinking of mussel adhesive proteins, which gave vesicles with dramatically improved membrane stability against freeze‐drying, organic solvent, osmotic stress and complex media. These materials showed greatly enhanced membrane stability compared to non‐crosslinked vesicles and have the advantage that the biomimetic crosslinker DOPA can be incorporated directly into the polypeptide sequence during synthesis.magnified image
Synthesis and electro‐optical characterization of new conducting PEDOT/Au‐nanorods nanocomposites
Authors: Salsamendi Maitane , Abad Jose , Marcilla Rebeca , Pozo‐Gonzalo Cristina , Urbina Antonio , Grande Hans , Colchero Jaime , Mecerreyes David 
Published: February 2010

AbstractThis paper describes a new strategy to obtain PEDOT/Au‐nanorods nanocomposites with different PEDOT: Au ratio. A polymeric ionic liquid (PIL) was used as stabilizer during the chemical synthesis of PEDOT dispersions. PEDOT/Au‐nanorods dispersions in organic media were obtained. Electrochemical characterization of PEDOT/Au‐nanorods nanocomposites revealed that the addition of Au nanorods modified the electroactivity of the conducting films by reducing the oxidation potential from +0.33 to +0.23 V (versus Ag/AgCl). Optical contrast (ΔT%) of the films decreased from 17% for neat PEDOT films to 8% for PEDOT/Au‐nanorods nanocomposites films (3:1 (v/v)) while switching times (from 1 to 4 sec) were similar to neat PEDOT. Conductivity of the films increased from 0.027 S/cm for neat PEDOT to 0.691 S/cm for PEDOT/Au‐nanorods nanocomposites. Nanoscale morphology and contact potential of PEDOT/Au‐nanorods nanocomposites were investigated in detail by Scanning Force Microscopy. Electrical measurements show a clear contact potential difference between the ITO substrate and the PEDOT/Au‐nanorods film. On the film, no contact potential inhomogeneity is observed indicating that the Au‐nanorods are uniformly dispersed in the film. Copyright © 2010 John Wiley & Sons, Ltd.
Psychosocial and functional outcomes in long‐term survivors of osteosarcoma: A comparison of limb‐salvage surgery and amputation
Authors: Robert Rhonda S. , Ottaviani Giulia , Huh Winston W. , Palla Shana , Jaffe Norman 
Published: February 2010

AbstractBackgroundTraditionally, physicians have believed that limb‐salvage surgery has functional and cosmetic advantages over amputation, yet the literature is equivocal. Therefore, we sought to compare the psychosocial and functional outcomes in osteosarcoma survivors after limb‐salvage surgery and amputation. We hypothesized there to be neither psychosocial nor functional outcome differences between groups.ProcedureParticipants received treatment of extremity osteosarcoma, had received their cancer diagnosis at least 2 years prior, and were at least 16 years old. A comprehensive set of validated psychosocial and functional measures was used to assess outcome.ResultsFifty‐seven patients participated in this study (33 who underwent limb‐salvage surgery and 24 who underwent amputation). Participants had gone 12–24 years since diagnosis and were 16–52 years old at study participation. We used multiple linear regression models to examine differences in quality of life, body image, self‐esteem, and social support between the two groups and found no differences. Lower limb function was a significant predictor of quality of life (P < 0.001), whereas surgery type did not impact this relationship. Body image was rated significantly worse by those who underwent late amputation, amputation after failed limb salvage, than by those who did not.ConclusionsParticipants with more functional lower limbs had better quality of life than did those with less functional lower limbs regardless of whether they underwent amputation or limb‐salvage surgery. Pediatr Blood Cancer 2010;54:990–999 © 2010 Wiley‐Liss, Inc.
Post‐hematopoietic stem cell transplant immunization practices in the Pediatric Blood and Marrow Transplant Consortium
Authors: Hudspeth Michelle P. , Hill Tamara N. , Lewis Jocelyn A. , Van Meter Emily , Ragucci Dominic 
Published: February 2010

AbstractBackgroundA survey of National Marrow Donor Program transplant centers in 1995 demonstrated a wide range of immunization practices in post‐hematopoietic stem cell transplant (HSCT) recipients, which led to the 2000 Centers for Disease Control and Prevention (CDC) recommendations for vaccination after HSCT. We surveyed the principal investigators of the Pediatric Blood and Marrow Transplant Consortium (PBMTC) to identify immunization practice patterns after HSCT and assess compliance with the 2000 CDC guidelines.ProcedureApproval was obtained from the Medical University of South Carolina Institutional Review Board. A 33 question survey using surveymonkey.com was distributed by email to principal investigators in the PBMTC.ResultsForty‐one (40%) of the 102 pediatric HSCT centers participating in the PBMTC responded. Thirty of the responding centers completed the entire survey. For individual vaccines, compliance with the CDC guidelines ranged from 22% to 93%. Less than 20% of the centers reported schedules consistent with the 2000 CDC recommendations for both allogeneic and autologous HSCT recipients.ConclusionDespite the 2000 CDC guidelines, wide variation in post‐HSCT immunization practices still exists. Updated guidelines have been needed, particularly to address the use of the pneumococcal conjugate vaccine. In conjunction with multiple other groups, the CDC recently released new immunization guidelines in October 2009. Additional data are still needed to adequately address the utility of incorporating immunologic parameters with the timing of vaccination after HSCT. Pediatr Blood Cancer 2010;54:970–975 © 2010 Wiley‐Liss, Inc.
Measuring psychological morbidity for diabetes commissioning
Authors: Ruddock S , Fosbury J , Smith A , Meadows K , Crown A 
Published: February 2010

AbstractThe aim of this study was to investigate the prevalence of psychological morbidity in the local secondary care population of people with type 1 diabetes or type 2 diabetes (T1DM or T2DM) in order to determine appropriate treatment provision.Four hundred patients seen in diabetes outpatient clinics were sent a number of standardised and validated questionnaires designed to measure: diabetes related distress; anxiety and depression; disordered eating behaviours; and borderline personality disorder. A response rate of 52.7% was achieved, providing a total of 211 completed questionnaires (111 T1DM, 100 T2DM) for analysis.This study has demonstrated a high prevalence of psychological morbidity in the local secondary care population of people with diabetes, with as many as half of those surveyed (52%) reporting some level of psychological disturbance. After controlling for age, gender and diabetes type, few differences in levels of psychological dysfunction were identified between the T1DM and T2DM cohorts. The exception to this was disinhibited eating behaviours: 22% of people with T2DM had severe levels of disinhibited eating, twice that recorded in the T1DM population. Overall, 36% (n=76) of study participants had moderate–severe levels of depression, anxiety or both, and 9.5% (16 of 168) had scores suggestive of borderline personality disorder. Copyright © 2010 John Wiley & Sons.
Personal and systems‐level factors that limit and facilitate school psychologists' involvement in school‐based mental health services
Authors: Suldo Shannon M. , Friedrich Allison , Michalowski Jessica 
Published: February 2010

AbstractThe common path through which youth with mental health problems actually receive treatment is the education system. The current study used qualitative methodology to explore why school psychologists are not providing the level of mental health services that children need, leaders in the field call for, and practitioners desire. Thirty‐nine school psychologists participated in 11 focus groups; they responded to structured questions regarding the range of mental health services they currently provide, as well as the personal and systemic factors that facilitate and limit their provision of these mental health services. Analysis of themes that emerged across focus groups indicated that school psychologists provide a broad variety of mental health services with an emphasis on group and individual counseling as well as crisis intervention. The factors most often mentioned as prohibiting the delivery of such services included problems inherent to using schools as the site for service delivery, insufficient training, and a lack of support from department/district administration and school personnel. The enabling conditions that emerged most involved perceptions of ample support from administration and school personnel, sufficient integration into the school site, and particular personal characteristics, such as the desire to provide counseling and the ability to maintain personal boundaries. Implications for practitioners, administrators, and trainers are discussed. © 2010 Wiley Periodicals, Inc.
Emotion‐regulation ability, burnout, and job satisfaction among British secondary‐school teachers
Authors: Brackett Marc A. , Palomera Raquel , Mojsa‐Kaja Justyna , Reyes Maria Regina , Salovey Peter 
Published: February 2010

AbstractThe topic of emotion regulation and its relationship with teacher effectiveness is beginning to garner attention by researchers. This study examined the relationship between emotion‐regulation ability (ERA), as assessed by the Mayer–Salovey–Caruso Emotional Intelligence Test (MSCEIT), and both job satisfaction and burnout among secondary‐school teachers (N = 123). It also examined the mediating effects of affect and principal support on these outcomes. ERA was associated positively with positive affect, principal support, job satisfaction, and one component of burnout, personal accomplishment. Two path models demonstrated that both positive affect and principal support mediated independently the associations between ERA and both personal accomplishment and job satisfaction. © 2010 Wiley Periodicals, Inc.
The Irritation Potential of Nonthermal Atmospheric Pressure Plasma in the HET‐CAM
Authors: Bender Claudia , Matthes Rutger , Kindel Eckhard , Kramer Axel , Lademann Jürgen , Weltmann Klaus‐Dieter , Eisenbeiß Werner , Hübner Nils‐Olaf 
Published: February 2010

AbstractTo determine a reliable test and validate the use of nonthermal atmospheric pressure plasma on wounds, we selected the Hen's Egg Test–chorioallantoic membrane (HET‐CAM) as an alternative method to the Draize rabbit test to determine the irritation potential of plasma. Irritations of varying intensities provoked by using a dielectric barrier discharge (DBD) and an HF Plasma Jet corresponded to treatment frequencies and exposure times. Pulsed plasma led to the mildest irritations. Depending on the intensity of the irritations, the effects were partially or completely reversible. In the latter case, it may be assumed that this plasma mode can be applied to living tissue without harm. To conclude, the HET‐CAM is suitable for screening plasma sources and parameters for the medical applications of plasma.magnified image
An enriched structural kinase database to enable kinome‐wide structure‐based analyses and drug discovery
Authors: Brooijmans Natasja , Chang Yu‐Wei , Mobilio Dominick , Denny Rajiah A. , Humblet Christine 
Published: February 2010

AbstractThe development of a kinase structural database, the kinase knowledge base (KKB), is described. It covers all human kinase domain structures that have been deposited in the Protein Data Bank. All structures are renumbered using a common scheme, which enables efficient cross‐comparisons and multiple queries of interest to the kinase field. The common numbering scheme is also used to automatically annotate conserved residues and motifs, and conformationally classify the structures based on the DFG‐loop and Helix C. Analyses of residue conservation in the ATP binding site using the full human‐kinome–sequence alignment lead to the identification of a conserved hydrogen bond between the hinge region backbone and a glycine in the specificity surface. Furthermore, 90% of kinases are found to have at least one stabilizing interaction for the hinge region, which has not been described before.