bluuebunny/crossref_metadata_2025_split huggingface dataset:
Post‐traumatic stress symptoms among mothers of children with leukemia undergoing treatment: a longitudinal study
Authors: Tremolada Marta , Bonichini Sabrina , Aloisio Donatella , Schiavo Simone , Carli Modesto , Pillon Marta 
Published: July 2012

AbstractObjectiveTo assess post‐traumatic stress symptoms (PTSS) in mothers of children over 2 years of leukemia treatment, to identify possible early family and child predictors of this symptomatology and to indicate the temporal trajectory of PTSS.MethodsParticipants were 76 Italian mothers (mean age = 37.30 years; SD = 6.07) of children receiving treatment for acute lymphoblastic (n = 69) or myeloid (n = 7) leukemia. Mothers had 12.05 years of education (SD = 3.87), and their incomes were average (52.1%), high (26%) and low (21.9%) for Italian norms, never in poverty. The pediatric patients with leukemia were equally distributed by gender with their mean age of 7.10 years (SD = 4.18).Post‐traumatic stress symptoms were measured by a 17‐item checklist. Scales assessing anxiety, depression, physical (Brief Symptom Inventory 18) and cognitive functioning (Problem Scale), and life evaluation were also used. There were five assessment points: 1 week (T1), 1 month (T2), 6 months (T3), 12 months (T4) and 24 months post‐diagnosis (T5).ResultsThe main results indicated moderate presence of clinical PTSS (≥9 symptoms: 24% at T2, 18% at T3, 16% at T4 and 19% at T5) that remained stable across time points, whereas Brief Symptom Inventory 18 Global score decreased and life evaluation improved. A series of hierarchical regression models identified cognitive functioning early after the diagnosis as the best predictive factor of PTSS across time points.ConclusionSpecific psychological interventions could be devised for mothers at risk for short and long‐term PTSS just after the diagnosis. Copyright © 2012 John Wiley & Sons, Ltd.
Training The Mind's Eye: “Brain Movies” Support Comprehension and Recall
Authors: Wilson Donna 
Published: July 2012

AbstractExplicit instruction on the skill of creating mental imagery from text supports reading comprehension and recall. This article shares a strategy for teaching students how to process what they read by comparing mental imagery to “brain movies.” It emphasizes choosing appropriate fiction and nonfiction texts to encourage readers to build the skill of creating mental imagery, and offers examples from two classrooms on how students use brain movies to make meaning from what they read.
Serosurvey of mountain lions in southern Arizona
Authors: Nicholson Kerry L. , Noon Ted H. , Krausman Paul R. 
Published: July 2012

AbstractAn understanding of the prevalence of diseases in free‐ranging populations of felids is limited, and there is even less known about the overall health and diseases of wild felids that inhabit or utilize urban areas. We collected serum samples from 9 radiocollared mountain lions (Puma concolor) in the mountains surrounding Tucson, Arizona, USA, from August 2005 to August 2008. We tested serum samples for evidence of exposure to 10 feline viruses: Feline Calicivirus (FCV), Feline Herpesvirus, Feline Enteric Coronavirus, Feline Syncytial Virus–Feline Foamy Virus, Feline Infectious Peritonitis, Feline Immunodeficiency Virus, Feline Panleukopenia Virus (FPLV), Feline Leukemia Virus, Canine Distemper Virus (CDV), and Toxoplasma gondii. The highest prevalences of exposure were: T. gondii (8/9), FPLV (7/9), and FCV (6/9). One male was seropositive for CDV, T. gondii, and FPLV. Mountain lions inhabiting smaller fragmented landscapes and urban areas have more contact with other felids and domesticated animals. Frequent contact among mountain lions, other felids, and domesticated animals can lead to higher risk of exposure and facilitate the spread of the disease from animal to animal. © 2012 The Wildlife Society.
Effects of elevated selenium on body condition, oxidative stress, and organ health in greater scaup wintering at Lake Ontario
Authors: Ware Lindsay L. , Petrie Scott A. , Bailey Robert C. , Badzinski Shannon S. , Schummer Michael L. , Chen Yu‐Wei , Belzile Nelson 
Published: July 2012

AbstractElevated selenium (Se) concentrations have been detected in tissues of greater (Aythya marila) and lesser (A. affinis) scaup and it has been hypothesized that these Se concentrations may be affecting scaup health and reducing survival and, thus, negatively affecting scaup populations in North America. We evaluated the influence of hepatic Se concentrations on lipid and protein reserves, organ masses, tissue health, and oxidative stress of greater scaup wintering at western Lake Ontario during December–March, 2006–2007. Although we detected Se at elevated levels, all greater scaup with physical abnormalities (13 of 73 birds) had Se concentrations below the acute health problem threshold established for mallards (33 µg/g). Neither organ masses, protein reserves, nor measures of oxidative stress were influenced by hepatic Se concentrations, whereas lipid reserves varied positively with hepatic Se concentrations. Results suggest that hepatic Se concentrations at levels recorded in our study do not affect body condition or physical health of greater scaup. © 2012 The Wildlife Society.
|(C6N4H21)2|[Ge7O14F6]: A New Germanate Compound Constructed from Alternately Stacked Pseudo Triple‐Sheet Layers
Authors: Ren Xiaoyan , Liu Jiancong , Li Yi , Yu Jihong 
Published: July 2012

AbstractA novel layered germanate compound, |(C6N4H21)2|[Ge7O14F6] (JU‐86, JU = Jilin University), was solvothermally synthesized. Its structure consists of 4.6‐net sheets built up from dissymmetric 83 building units. Different from those found in several metal phosphate compounds, half of the 4.6‐net sheets in JU‐86 are constructed from right‐handed 83 building units and the other half are constructed from left‐handed ones. Right‐handed and left‐handed 4.6‐net sheets are stacked alternately in JU‐86. Each 4.6‐net sheet is sandwiched by two layers of protonated tris(2‐aminoethyl)amine (tren) molecules to form an unusual pseudo triple‐sheet layer through hydrogen‐bonding interactions. No hydrogen bonds are found between different pseudo triple‐sheet layers.
Crystal Structure and Vibrational Properties of a Sodium Oxoferrate(II) Hydroxide, Na5[FeO3][OH]
Authors: Gheorghe Dana E. , Litvinchuk Alexander P. , Möller Angela 
Published: July 2012

AbstractNa5[FeO3][OH] has been obtained from a redox reaction between iron metal and CdO in the presence of Na2O and NaOH at 450 °C (5 d) as red crystals. The structure has been determined from single crystal data (Pnma, Z = 8, a = 990.94(7) pm, b = 1016.41(7) pm, c = 1185.35(8) pm, wR2 = 0.050) and evaluated by MAPLE calculations. In addition, we present experimental single‐crystal IR and Raman spectroscopic data to discuss aspects of the isolated [FeO3]4– complexes and non‐coordinating hydroxide in comparison with the respective cobalt compounds. Additional ab‐initio lattice dynamic calculations are included for comparison.
Automatic student modeling in adaptive educational systems through probabilistic learning style combinations: a qualitative comparison between two innovative stochastic approaches
Authors: Dorça Fabiano A. , Lima Luciano V. , Fernandes Márcia A. , Lopes Carlos R. 
Published: July 2012

Abstract
Considering learning and how to improve students’ performances, adaptive educational systems must know the way in which an individual student learns best. In this context, this work presents a comparison between two innovative approaches to automatically detect and precisely adjust students’ learning styles during an adaptive course. These approaches take into account the nondeterministic and nonstationary aspects of learning styles. They are based upon two stochastic techniques: Markov chains and genetic algorithms. We found that the genetic algorithm (GA) based approach detects learning styles earlier and consequently provides personalized content earlier, making the learning process easier. The Markov based approach produces more fine-tuned results, taking into account strengths of learning styles.
Bilateral congenital choanal atresia encountered in late adulthood
Authors: Tatar E Ç , Özdek A , Akcan F , Korkmaz H 
Published: July 2012

AbstractObjective:We describe a case of bilateral congenital choanal atresia in the oldest patient reported with this condition in the recent English language literature.Method:Case report and a review of the relevant English language literature, presenting the embryopathogenesis, diagnostic methods and treatment options for this condition.Results:A 53-year-old woman having difficulty with nasal breathing, and with a continuous nasal discharge, was admitted to our clinic. Bilateral congenital choanal atresia was diagnosed by endoscopic examination and paranasal sinus computed tomography. Surgical treatment used an endoscopic transnasal approach. The follow-up examination a year later revealed adequate choanal openings bilaterally.Conclusion:To our knowledge, this is the oldest patient with bilateral congenital choanal atresia to be reported in the recent literature. This condition is rarely encountered in adulthood but should be considered as a possible differential diagnosis of persistent nasal obstruction.
Brain natriuretic peptide level in a small series of children and grown-ups with congenital heart defects with chronic cardiac failure
Authors: Grutter Giorgia , Alfieri Sara , Parisi Francesco 
Published: July 2012

AbstractThe present study assessed the usefulness of brain natriuretic peptide in evaluating the cardiovascular status in children and grown-ups with congenital or acquired disease affected by chronic cardiac failure. Brain natriuretic peptide should be included in the risk stratification of children with dilated cardiomyopathy. In patients with congenital heart defects, it is useful to tailor the optimal medical strategy to individual patients.
Does tracking of dietary behaviours differ by parental education in children during the transition into adolescence?
Authors: Totland Torunn H , Gebremariam Mekdes K , Lien Nanna , Bjelland Mona , Grydeland May , Bergh Ingunn H , Klepp Knut-Inge , Andersen Lene F 
Published: July 2012

AbstractObjectiveThe present study investigates the changes and tracking of dietary behaviours in Norwegian 11-year-olds and examines the association between parental education and dietary tracking over a time period of 20 months.DesignLongitudinal data from the Norwegian HEalth In Adolescents (HEIA) cohort study followed up at three time points (2007–2009).SettingIntakes of fruits, vegetables and snacks were assessed by frequency and intakes of sugar-sweetened soft drinks and squash were assessed by frequency and amount. Tracking of dietary behaviours was assessed by adolescents’ relative position in rank over time and Cohen's kappa was used to measure tracking coefficients. Multinomial logistic regression analyses were performed to assess the association between parental education and the tracking of dietary behaviours.SubjectsIn total, 885 adolescents from the HEIA cohort study participated by answering Internet-based questionnaires at three time points.ResultsThe results indicated that boys and girls maintained their relative position in rank of dietary intake over time, when grouped by baseline consumption. Fair to moderate tracking coefficients of dietary variables were observed. An inverse association was found between parental education and stability of soft drink and squash consumption during the 20 months.ConclusionsThe observed tracking pattern indicates the importance of promoting healthy dietary behaviours at an even earlier age. Furthermore, interventions should focus particularly on adolescents from families with low parental education and their consumption of sugar-sweetened beverages.
Selective activation of Toll-like receptor 7 in activated hepatic stellate cells may modulate their profibrogenic phenotype
Authors: Chou Ming-Huei , Huang Ying-Hsien , Lin Tsun-Mei , Du Yung-Ying , Tsai Po-Chin , Hsieh Chih-Sung , Chuang Jiin-Haur 
Published: July 2012

Cholestatic liver injury may activate HSCs (hepatic stellate cells) to a profibrogenic phenotype, contributing to liver fibrogenesis. We have previously demonstrated the involvement of TLR (Toll-like receptor) 7 in the pathogenesis of biliary atresia. In the present study we investigated the ability of TLR7 to modulate the profibrogenic phenotype in HSCs. Obstructive jaundice was associated with significant down-regulation of TLR7. Primary HSCs isolated from BDL (bile duct ligation) rats with obstructive jaundice exhibited reduced expression of TLR7 and increased expression of α-SMA (α-smooth muscle actin) and collagen-α1 compared with sham rats, reflecting HSC-mediated changes. Treatment of primary activated rat HSCs and rat T6 cells with CL075, a TLR7 and TLR8 ligand, significantly decreased expression of MCP-1 (monocyte chemotactic protein-1), TGF-β1 (transforming growth factor-β1), collagen-α1 and MMP-2 (matrix metalloproteinase-2), and inhibited cell proliferation and migration. In contrast, silencing TLR7 expression with shRNA (short hairpin RNA) in T6 cells effectively blocked the effects of CL075 stimulation, reversing the changes in MCP-1, TGF-β1 and collagen-α1 expression and accelerating cell migration. Our results indicate that obstructive jaundice is associated with down-regulation of TLR7 and up-regulation of profibrogenic gene expression in HSCs. Selective activation of TLR7 may modulate the profibrogenic phenotype in activated HSCs associated with cholestatic liver injury.
Emergent Literacy in Children With Autism: An Exploration of Developmental and Contextual Dynamic Processes
Authors: Lanter Elizabeth , Watson Linda R. , Erickson Karen A. , Freeman Daniel 
Published: July 2012

Purpose
This investigation describes emergent literacy skills, print motivation, and home literacy environments in a linguistically diverse group of children with autism spectrum disorders (ASD).

Method
Emergent literacy skills were directly assessed in 41 children between the ages of 4 and 8 years. Parent report was solicited to provide additional information concerning the children’s emergent literacy skills, as well as their print motivation and home literacy environments. The achievements of children with differential language abilities were compared, and associations among the children’s language and emergent literacy abilities were explored.

Results
Narrowly, children with typical language achieved significantly higher scores on an emergent literacy composite than those with mild-to-moderate or severe language impairments; broadly, these scores were highly correlated (ρ = .56) with the children’s language. Skill performance was varied but was characterized by relative strengths in discrete skills, such as letter name identification, and weaknesses in more holistic skills, such as print functions. Parents generally described the children as being motivated by print materials and the home environments as offering high levels of parent–child engagement in literacy activities.

Conclusion
Profiles were associated with language and were illustrated by heterogeneity with potentially unequal achievements between code- and meaning-based skills. Implications for speech-language pathologists and other educators are provided.
Regulation of the Arabidopsis anther transcriptome by DYT1 for pollen development
Authors: Feng Baomin , Lu Dihong , Ma Xuan , Peng Yiben , Sun Yujin , Ning Gang , Ma Hong 
Published: July 2012

SummarySeveral genes encoding transcription factors have been shown to be essential for male fertility in plants, suggesting that transcriptional regulation is a major mechanism controlling anther development in Arabidopsis. DYSFUNCTIONAL TAPETUM 1 (DYT1), a putative bHLH transcription factor, plays a critical role in regulating tapetum function and pollen development. Here, we compare the transcriptomes of young anthers of wild‐type and the dyt1 mutant, demonstrating that DYT1 is upstream of at least 22 genes encoding transcription factors and regulates the expression of a large number of genes, including genes involved in specific metabolic pathways. We also show that DYT1 can bind to DNA in a sequence‐specific manner in vitro, and induction of DYT1 activity in vivo activated the expression of the downstream transcription factor genes MYB35 and MS1. We generated DYT1–SRDX transgenic plants whose fertility was dramatically reduced, implying that DYT1 probably acts as a transcriptional activator. Furthermore, we used yeast two‐hybrid assays to show that DYT1 forms homodimers and heterodimers with other bHLH transcription factors. Our results demonstrate the important role of DYT1 in regulating anther transcriptome and function, and supporting normal pollen development.
Evaluation of implementation of sentinel node biopsy in Australia
Authors: Morris Trenna , Wetzig Neil , Sinclair Sue , Kollias James , Zorbas Helen 
Published: July 2012

AbstractBackground:  Sentinel node biopsy (SNB) has been a major change in surgical technique for the management of early breast cancer. In June 2008, the National Breast and Ovarian Cancer Centre (NBOCC) released evidence‐based guidelines for the use of SNB in Australia. During 2010, NBOCC undertook a cohort study to identify the extent to which clinical practice in Australia reflected the recommendations for use of SNB in the 6 months after release of the guidelines.Methods:  Records obtained from four datasets, Royal Australasian College of Surgeons National Breast Cancer Audit, New South Wales Central Cancer Registry, Victorian Cancer Registry and Medicare Benefits Schedule records, were analysed to determine the extent to which the four key guideline recommendations had been implemented. This was supplemented by an audit of written SNB protocols of a sample of pathology laboratories in Australia.Results:  Across all cohorts, between 78 and 83% of women in Australia with tumours ≤3 cm had an SNB. Data were not available to indicate whether nodes were clinically negative. The likelihood of women having an SNB decreased outside the metropolitan regions, for women treated as public patients compared with private patients and as the size of the tumour increased. In 90% of procedures both preoperative lymphoscintigraphy with isotope and blue dye were used.Conclusion:  The findings from the study confirm that best practice recommendations from the NBOCC guidelines for SNB were largely being implemented for women with early breast cancer in Australia within 6 months of their release.
Patients' perception of surgical training in private hospitals
Authors: Koirala Rhiannon , Mattern Owen , Danne Peter , Murray Spencer 
Published: July 2012

AbstractIntroduction:  Surgical training is traditionally a public hospital‐based practice. At Epworth Private Hospital, Richmond, Victoria, there are three accredited surgical training positions and one fellowship position. We conducted a patient survey to review the patients' perspective of surgical trainees in private hospitals.Methods:  Over 6 weeks, 100 patients admitted under the surgical units with full‐time surgical registrars were given a survey to complete in two parts on the training of surgeons in private hospitals.Results:  Seventy per cent of surveys were returned completed. Ninety per cent of respondents agreed that private hospitals should be involved in surgical training and 85.7% of patients were agreeable to having trainees involved in their operation. Only 1.4% of patients were not in agreement with surgical training in private and 8.6% of patients were neutral in their opinion.Conclusion:  Our results clearly show that private hospital patients are generally favourably disposed to the presence and participation of surgical trainees in the private hospital setting.
Single‐fulcrum laparoscopic cholecystectomy: a single‐incision and multi‐port technique
Authors: Choi Sung Hoon , Hwang Ho Kyoung , Kang Chang Moo , Lee Woo Jung 
Published: July 2012

AbstractBackground:  Single‐incision laparoscopic cholecystectomy (LC) is still technically demanding and usually requires specially designed instruments. This article describes our own technique, a single‐fulcrum LC using only standard ports and instruments.Methods:  Between March 2009 and December 2010, 130 consecutive patients, all scheduled to undergo elective LC, underwent this single‐fulcrum LC for benign gallbladder disease. Perioperative surgical outcomes were retrospectively evaluated.Results:  One hundred and ten patients (84.6%) underwent successful single‐fulcrum LC, and 20 patients (15.4%) were converted to conventional surgery (n= 18) or required additional trocars (n= 2) during the procedure because of umbilical hernia (n= 3), severe inflammation or adhesion (n= 9), impacted cystic duct stone (n= 3), anatomical anomaly (n= 3) and iatrogenic injury (n= 2). Two intraoperative complications (iatrogenic injury) were securely managed using additional trocars and there was no post‐operative morbidity or mortality. This single‐fulcrum LC could be performed with comparable cost to conventional LC, and the sequential operative time showed reasonable learning curve.Conclusion:  Single‐fulcrum LC is feasible, safe and quite reproducible. The surgical wound can be dramatically reduced at a similar cost to conventional LC. It may be an alternative procedure for most uncomplicated benign gallbladder disease.
Disruption of neuropsin mRNA expression via RNA interference facilitates the photoinduced increase in thyrotropin‐stimulating subunit β in birds
Authors: Stevenson Tyler J. , Ball Gregory F. 
Published: July 2012

AbstractIt has long been known that the avian brain is capable of light detection independently of the eyes. The photoreceptive molecule neuropsin (OPN5) was identified in mammalian and avian brains, and shown to respond to biologically relevant light wavelengths. Whether OPN5 is functionally involved in light detection is unknown. Daylength plays a critical role in regulating the neuroendocrine control of reproduction in birds. The presence of light during a ‘photoinducible’ phase of the circadian cycle, which occurs 12–16 h after dawn, results in marked changes in hypothalamic gene expression. These changes ultimately control gonadotropin release from the pituitary gland that, in turn, stimulates gonadal development. In this study, we first measured OPN5 expression in the mediobasal hypothalamus (MBH) in border canaries during the photoinducible period in relation to thyrotropin (TSH) β‐subunit mRNA expression, which is implicated in the control of avian reproduction. Second, the knockdown of OPN5 via small interfering RNA antisense in the MBH revealed that there is an inhibitory input in the photoinduced regulation of TSHβ mRNA expression. Our data indicate that a decrease in OPN5 mRNA expression is associated with the facilitation in TSHβ mRNA expression in the MBH, a critical step for the light‐induced increase in gonadal recrudescence. We hypothesise that the removal of an inhibitory input by OPN5 in birds may be a step that occurs during the photoinducible period. Given the distribution of OPN5 in the brain and periphery, this suggests a possible multifunctional role for light information in regulating other physiological processes.