bluuebunny/crossref_metadata_2025_split huggingface dataset:
Considerations in the identification, assessment, and intervention process for deaf and hard of hearing students with reading difficulties
Authors: Gilbertson Donna , Ferre Scot 
Published: January 2008

AbstractProblematic assessment and intervention issues present substantial challenges when making educational decisions for deaf or hard of hearing (D/HH) students who are experiencing reading difficulties. These students present a diverse set of language acquisition skills, hearing ability, and orientation to early school learning activities that are different from the hearing student population. Given the importance of selecting assessment approaches that lead to effective interventions for D/HH students, three assessment procedures for identification of at‐risk children and learning disabilities within the D/HH population are examined. Assessments reviewed are teacher referral, norm‐referenced testing, and student response to intervention. Challenges to each process and the need for additional assessment and empirically validated treatment options are discussed. Finally, a case example is presented to illustrate a framework that may help school psychologists promote early identification of learning problems and outline interventions that meets a D/HH child's unique needs by focusing on reading outcomes in the curriculum. © 2008 Wiley Periodicals, Inc.
Attachment relationships and adolescents' life satisfaction: Some relationships matter more to girls than boys
Authors: Ma Claudia Q. , Huebner E. Scott 
Published: January 2008

AbstractThis study examined the extent to which the quality of parent and peer attachments related to early adolescents' life satisfaction (LS), whether peer attachment served as a mediator between parent attachment and LS, and potential gender differences. A total of 587 middle school students in grades 6 through 8 participated. Although both parent and peer attachment positively related to LS, parent attachment was the stronger unique predictor. There was no significant difference between males and females in levels of parent attachment; however, females reported higher levels of attachment to peers. This study also found that early adolescents were more attached to their mothers than their fathers. Finally, peer attachment partially mediated the relationship between parent attachment and LS, but only for females. Implications for gender‐specific intervention programs are discussed. © 2008 Wiley Periodicals, Inc.
Theoretical studies on aromaticity of selected hydroxypyrones and their cations and anions. Part 2. Electron delocalisation in the OCCO group
Authors: Zborowski Krzysztof , Proniewicz Leonard M. 
Published: January 2008

AbstractElectron delocalisation in the OCCO part of hydroxypyrones with two exocyclic oxygens linked by two carbon atoms was studied using well‐known aromaticity indices like: HOMA, EN, GEO, NICS(0) and NICS(1). This part of hydroxypyrones is very important due to the fact that the two exocyclic oxygens of deprotonated hydroxypyrone units are responsible for metal ion binding. Values of the aromaticity indices were obtained for geometries calculated by several theoretical methods (HF, SVWN, B3LYP and B1LYP) with 6‐311 ++ G(d,p) basis set. Electron delocalisation in the corresponding cations and anions was also considered. The data obtained in this work revealed that the relative delocalisation order in the OCCO group is the same as the aromaticity order determined earlier for the heterocyclic rings of hydroxypyrones (anions < neutral molecule < cation). The problem of quasiaromaticity in neutral hydroxypyrones and their cations is also considered and discussed. Copyright © 2008 John Wiley & Sons, Ltd.
Immunoproteomics: From biomarker discovery to diagnostic applications
Authors: Tjalsma Harold , Schaeps Renée M. J. , Swinkels Dorine W. 
Published: January 2008

AbstractCirculating antibodies reflect a molecular imprint of antigens that are related to autoimmune diseases, cancer or infection. Importantly, serum antibodies are useful clinical markers as they carry diagnostic information from all around the human body. Moreover, the amplification cascade governed by the humoral immune system causes a surplus of circulating antibodies after appearance of the corresponding (low abundance) antigen. In combination with the fact that antibodies are highly stable compared to many other serum proteins, they seem ideal to be implemented in clinical diagnostic assays for the detection of antigen‐associated diseases. This review summarises advances in immunoproteomics with respect to technologies for biomarker discovery, with special emphasis on recently developed gel‐free MS‐based approaches, and looks forward to potential immunoproteomic applications in diagnostic medicine.
RNASEL and RNASEL‐inhibitor variation and prostate cancer risk in Afro‐Caribbeans
Authors: Shea Patrick R. , Ishwad Chandramohan S. , Bunker Clareann H. , Patrick Alan L. , Kuller Lewis H. , Ferrell Robert E. 
Published: January 2008

AbstractBACKGROUNDAfro‐Caribbeans from Tobago are at high risk of developing prostate cancer. This elevated risk of prostate cancer is shared by populations of African ancestry living in diverse environments in the Western hemisphere. Variation in the ribonuclease L (RNASEL) gene has recently been reported to be associated with an increased risk of prostate cancer. However, whether RNASEL variation contributes to the increased risk of prostate cancer observed in populations of African ancestry remains unclear.METHODSWe resequenced the positional candidate gene RNASEL in 48 prostate cancer cases and genotyped the previously reported R462Q and D541E polymorphisms in 230 prostate cancer cases and 458 controls. We also examined the inhibitor of RNASEL (ABCE1) for variation associated with prostate cancer risk.RESULTSWe found no evidence of association between R462Q and D541E polymorphisms and prostate cancer risk in our case/control analysis. A novel variant (K294E) was identified in a single heterozygous individual with prostate cancer. We also observed a 20 bp insertion/deletion polymorphism 1,109 bp upstream of the initiation codon, but this variant was not associated with prostate cancer. We identified 16 single nucleotide polymorphisms in the ABCE1 gene, only 3 of which had a minor allele frequency >5%. A common A/G transition −1,071 bp from the transcriptional start site was genotyped and showed no evidence of association with prostate cancer.CONCLUSIONSOur results suggest that common variation in the putative prostate cancer susceptibility gene, RNASEL, or its inhibitor does not contribute significantly to prostate cancer risk in this Afro‐Caribbean population. Prostate 68: 354–359, 2008. © 2008 Wiley‐Liss, Inc.
Obesity and screening PSA levels among men undergoing an annual physical exam
Authors: Rundle Andrew , Neugut Alfred I. 
Published: January 2008

AbstractBACKGROUNDPrior reports suggest that obesity is inversely associated with screening prostate‐specific antigen (PSA) levels and may reduce screening sensitivity.METHODSWe evaluated data on 10,623 men screened for prostate cancer during an annual physical examination program administered by EHE International, Inc., between 1/1/2004 and 6/30/2006. Of these, 3,623 men returned for additional physical exams during this period. We used multivariate linear regression analyses to determine whether higher BMI was inversely associated with PSA, and whether BMI, or change in BMI, was associated with change in PSA levels over time. We also developed a theoretical model for the effect of obesity on PSA levels in which increased plasma volume in the obese dilutes PSA levels.RESULTSAfter control for age and race/ethnicity, higher BMI was associated with lower PSA levels; men with a BMI ≥40 had a geometric mean PSA level 0.14 ng/ml lower than men with a BMI <25 (P < 0.001). Prospectively, BMI at initial screening and change in BMI over 2 years were not associated with change in PSA or PSA velocity. Our theoretical model accurately predicted observed PSA levels and suggests that a screening PSA of 4.0 ng/ml in normal weight and overweight men corresponds to 3.5 ng/ml in obese men and 3.1 ng/ml in morbidly obese men.CONCLUSIONAcross the study population, increased BMI was significantly inversely associated with lower PSA. Based on a theoretical model in which increased plasma volume in the obese dilutes PSA levels we propose new cut‐points for a positive screening test. Prostate 68: 373–380, 2008. © 2008 Wiley‐Liss, Inc.
Gamma radiation sensitivity of the eggs, larvae and pupae of Indian meal moth Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae)
Authors: Ayvaz Abdurrahman , Albayrak Sevil , Karaborklu Salih 
Published: January 2008

AbstractBACKGROUND: This study focused on determining the minimal effective gamma radiation dose that prevents commodity damage caused by the Indian meal moth Plodia interpunctella (Hübner). The study was also designed to assess the effect of releasing either partially sterilized males alone or both partially sterilized males and females on the reproductive potential of P. interpunctella populations.RESULTS: The dose of radiation required to prevent larval emergence from irradiated eggs was 350 Gy, and the same dose was also required to prevent adult emergence from mature larvae. A dose of 300 Gy was not able to prevent adult emergence from irradiated pupae. The dose at which 100% sterility was achieved in treated females mated to treated males was 300 Gy for the parental generation of irradiated pupae. Fertility of the parental males from irradiated pupae was 48.17% at 300 Gy in treated males crossed with untreated females, but male progeny of irradiated male parents had a residual fertility of 11.06% at the same dose.CONCLUSION: F1 males from irradiated pupae were more sterile than parental males. To prevent larval emergence from irradiated eggs, a dose of 350 Gy is required. The same dose is required to prevent the larvae from reaching the adult stage. Copyright © 2008 Society of Chemical Industry
Distribution of a juvenogen and its metabolites in a laboratory system during juvenogen‐induced caste differentiation in a termite, Reticulitermes santonensis (Isoptera: Rhinotermitidae)
Authors: Tykva Richard , Černý Bohuslav , Wimmer Zdeněk , Hanus Robert 
Published: January 2008

AbstractBACKGROUND: Juvenoids and juvenogens have been for many years considered promising candidates for control of pest insect species including termites. Their use as termite pest management agents requires the generation of knowledge concerning their degradation and distribution in time and space. Groups of 40 Reticulitermes santonensis de Feytaud workers were provided with wood impregnated with a juvenogen, ethyl cis‐N‐{2‐[4‐(2‐butyryloxycyclohexylmethyl)phenoxy]ethyl}carbamate, labelled with tritium in the benzene ring (305 GBq mmol−1). After 14 days the radioactivity was determined in all elements of the experimental system.RESULTS: The majority of the input activity was detected in the wood, only about 1% in the bodies of surviving termites and 1% in the substrate. A considerable part of the input activity was probably lost as gaseous termite metabolites. The activity in workers was significantly higher than in presoldiers, which had differentiated under the influence of the labelled juvenogen. A stable value of radioactivity was detected on the body surfaces.CONCLUSIONS: The results suggest good stability of the compound in the wooden carrier and low contamination of the environment with non‐gaseous residuals, together with the desired biological impact on termite caste differentiation. Copyright © 2008 Society of Chemical Industry
Recently identified a novel neuropeptide manserin colocalize with the TUNEL‐positive cells in the top villi of the rat duodenum
Authors: Yajima Aika , Narita Naoko , Narita Masaaki 
Published: January 2008

AbstractWe recently isolated a novel 40 amino acid neuropeptide designated manserin from the rat brain. Manserin is derived from secretogranin II, a member of granin acidic secretory protein family by proteolytic processing, as previously reported secretoneurin and EM66. Manserin peptide are localized in the endocrine cells of the pituitary. In this study, we further investigated the manserin localization in the digestive system by immunohistochemical analysis using antimanserin antibody. In the duodenum, manserin immunostaining was exclusively observed in the nuclei of top villi instead of cytosol as observed in neurons in our previous study. Interestingly, manserin‐positive cells in the duodenum are colocalized with terminal deoxynucleotidyl transferase‐mediated dUTP nick‐end labeling (TUNEL) positive cells, the cells whose DNA was damaged. Since the top villi of duodenum epithelial cells are known to undergo spontaneous apoptosis during epithelial cell turn over, and since other peptides such as secretoneurin and EM66 derived from SgII have been reported to be cancer‐related, these results indicated that manserin peptide may have a role in apoptosis and/or cancer pathogenesis in the digestive organ. Copyright © 2008 European Peptide Society and John Wiley & Sons, Ltd.
A field and laboratory method for monitoring the concentration and isotopic composition of soil CO2
Authors: Breecker Dan , Sharp Zachary D. 
Published: January 2008

AbstractThe stable isotope composition of nmol size gas samples can be determined accurately and precisely using continuous flow isotope ratio mass spectrometry (IRMS). We have developed a technique that exploits this capability in order to measure δ13C and δ18O values and, simultaneously, the concentration of CO2 in sub‐mL volume soil air samples. A sampling strategy designed for monitoring CO2 profiles at particular locations of interest is also described. This combined field and laboratory technique provides several advantages over those previously reported: (1) the small sample size required allows soil air to be sampled at a high spatial resolution, (2) the field setup minimizes sampling times and does not require powered equipment, (3) the analytical method avoids the introduction of air (including O2) into the mass spectrometer thereby extending filament life, and (4) pCO2, δ13C and δ18O are determined simultaneously. The reproducibility of measurements of CO2 in synthetic tank air using this technique is: ±0.08‰ (δ13C), ±0.10‰ (δ18O), and ±0.7% (pCO2) at 5550 ppm. The reproducibility for CO2 in soil air is estimated as: ±0.06‰ (δ13C), ±0.06‰ (δ18O), and ±1.6% (pCO2). Monitoring soil CO2 using this technique is applicable to studies concerning soil respiration and ecosystem gas exchange, the effect of elevated atmospheric CO2 (e.g. free air carbon dioxide enrichment) on soil processes, soil water budgets including partitioning evaporation from transpiration, pedogenesis and weathering, diffuse solid‐earth degassing, and the calibration of speleothem and pedogenic carbonate δ13C values as paleoenvironmental proxies. Copyright © 2008 John Wiley & Sons, Ltd.
New insights on the Cd UPD on Au(111)
Authors: del Barrio M. C. , García S. G. , Mayer C. E. , Salinas D. R. 
Published: January 2008

AbstractThe Cd underpotential deposition (UPD) process on Au(111) was analyzed by means of combined electrochemical measurements and in situ scanning tunneling microscopy (STM). In the underpotential range 300⩽ΔE (mV) ⩽400, 2D Cd islands are formed on the fcc regions of the Au(111)‐(√3 × 22) reconstructed surface without lifting the reconstruction. At lower underpotentials, the 2D Cd islands grow and, simultaneously, new 2D islands nucleate and coalesce with the previous ones forming a complete condensed Cd monolayer (ML). STM images and long time polarization experiments performed at ΔE = 70 mV demonstrate the formation of an AuCd surface alloy. At ΔE = 10 mV, the formation of the complete Cd ML is accompanied by a significant AuCd surface alloying and the kinetic results reveal two different solid‐state diffusion processes. The first one, with a diffusion coefficient D1 = 4 × 10−17 cm2 s−1, could be ascribed to the mutual diffusion of Au and Cd atoms through a highly distorted (vacancy‐rich) AuCd alloy layer. The second and faster diffusion process (D2 = 7 × 10−16 cm2 s−1) is associated with the appearance of an additional peak in the anodic stripping curves and could be attributed to the formation of another CdzAux alloy phase. Copyright © 2008 John Wiley & Sons, Ltd.
Effect of deposition pressure on the properties of DLC coatings deposited by bipolar‐type PBII&D
Authors: Choi Junho , Nakao Setsuo , Ikeyama Masami , Kato Takahisa 
Published: January 2008

AbstractIn the present study, the effect of deposition pressure on the deposition rate and various properties of diamond‐like carbon (DLC) coatings were investigated. The DLC coatings were deposited on Si substrates using a bipolar‐type plasma‐based ion implantation and deposition plasma based ion implantation and deposition (PBIID) technique. The toluene was used as a source gas and the deposition pressure ranged from 0.03 to 2.0 Pa. The deposition rate of the DLC coatings increases about 12 times as the deposition pressure is changed from 0.03 to 2.0 Pa. Also, the surface roughness increases with increasing deposition pressure due to high deposition rate. The hardness and elastic modulus decrease when the deposition pressure exceed 0.7 Pa due to the remarkable growth of graphitic islands. The corrosion protection performance of the DLC coating deposited at 2.0 Pa is superior to that of the DLC coating deposited at 0.2 Pa for the same deposition time of 1 h. The high deposition pressure for the DLC coating is effective in improvement of corrosion protection properties. Copyright © 2008 John Wiley & Sons, Ltd.
Resampling‐based analyses of the effects of combinations of HIV genetic mutations on drug susceptibility
Authors: Schumi Jennifer , DeGruttola Victor 
Published: January 2008

AbstractViral genotype data aid in understanding the development of antiretroviral drug resistance and in identifying appropriate treatments. Using HIV‐1 protease sequences and measures of in vitro sensitivity to the drug amprenavir, we develop a novel statistical approach that can be used to investigate combinations of mutations that alter drug susceptibility. Our method is based on the use of order statistics whose null distributions are estimated through resampling and used for formal hypothesis testing. We present a step‐down testing method that preserves the overall family‐wise error rate in finite samples via an application of the monotonicity condition of Romano and Wolf. Simulations demonstrate that the power of this new approach is comparable to a traditional resampling method; however, this approach can also be used as a visual diagnostic that may be informative even when specified hypotheses are not rejected, for example, in suggesting candidate regression models. Analysis of the data from the Stanford HIV database shows that while M46I/L mutations are associated with drug resistance, addition of the L88D/S mutation leads to hypersusceptible virus. Further addition of T90M/L mutations results in highly resistant virus. Use of this order statistics method allows the investigation of how mutations act in the presence of others and may suggest mechanisms by which resistance occurs or is reversed through the accumulation of mutations. Copyright © 2008 John Wiley & Sons, Ltd.
Simple Synthesis of Functionalized Superparamagnetic Magnetite/Silica Core/Shell Nanoparticles and their Application as Magnetically Separable High‐Performance Biocatalysts
Authors: Lee Jinwoo , Lee Youjin , Youn Jong Kyu , Na Hyon Bin , Yu Taekyung , Kim Hwan , Lee Sang‐Mok , Koo Yoon‐Mo , Kwak Ja Hun , Park Hyun Gyu , Chang Ho Nam , Hwang Misun , Park Je‐Geun , Kim Jungbae , Hyeon Taeghwan 
Published: January 2008

AbstractUniformly sized silica‐coated magnetic nanoparticles (magnetite@silica) are synthesized in a simple one‐pot process using reverse micelles as nanoreactors. The core diameter of the magnetic nanoparticles is easily controlled by adjusting the w value ([polar solvent]/[surfactant]) in the reverse‐micelle solution, and the thickness of the silica shell is easily controlled by varying the amount of tetraethyl orthosilicate added after the synthesis of the magnetite cores. Several grams of monodisperse magnetite@silica nanoparticles can be synthesized without going through any size‐selection process. When crosslinked enzyme molecules form clusters on the surfaces of the magnetite@silica nanoparticles, the resulting hybrid composites are magnetically separable, highly active, and stable under harsh shaking conditions for more than 15 days. Conversely, covalently attached enzymes on the surface of the magnetite@silica nanoparticles are deactivated under the same conditions.
New tribometer designed for the characterisation of the friction properties at the tool/chip/workpiece interfaces in machining
Authors: Zemzemi F. , Bensalem W. , Rech J. , Dogui A. , Kapsa P. 
Published: January 2008

AbstractThis work deals with the development of a new tribometer designed for the characterisation of the frictional properties at the tool/chip/workpiece interfaces in cutting processes. Based on a plane–sphere contact configuration, the experimental set‐up enables a continuous regeneration of the pin–workmaterial contact. The average contact pressure can be selected up to 3 GPa under sliding velocities reaching 16 m/s. Under such severe conditions, which are not reachable with conventional tribometers, the apparent friction coefficient is quantified in parallel to the heat flux transmitted to the pin. This new system has been applied to the characterisation of the frictional properties during the dry machining of a 27MnCr5 annealed steel with a carbide cutting tool. The influence of the sliding velocity and of an additional TiN layer deposited by PVD on the carbide pins has been investigated in dry conditions. It has been shown that the sliding velocity is the more influential parameter, followed by the coating. Copyright © 2007 John Wiley & Sons, Ltd.
Zoo and aquarium research: priority setting for the coming decades
Authors: Hutchins Michael , Thompson Steven D. 
Published: January 2008

AbstractScientific study within contemporary zoos and aquariums has developed ad hoc as an extremely broad, academically oriented mixture of basic and applied research spanning a wide array of concepts and disciplines. Several papers have considered prioritization of present or future research efforts within disciplines, but only a few have touched on prioritization across institutions, disciplines, and species. This lack of prioritization across institutions and disciplines is surprising given the growing interdependence of zoos and aquariums to maintain populations through exchange of animals, standardization of animal care procedures, and maintenance of self‐sustaining populations. The purpose of this paper is to explore prioritization of scientific research, and support of that prioritized research, within and among the professionally managed zoo and aquarium members of the Association of Zoos and Aquariums (AZA). Zoo Biol 27:488–497, 2008. © 2008 Wiley‐Liss, Inc.