bluuebunny/crossref_metadata_2025_split huggingface dataset:
Predatory activity of nematophagous fungi on infective larvae of Ancylostoma sp.: evaluation in vitro and after passing through the gastrointestinal tract of dogs
Authors: Carvalho R.O. , Araújo J.V. , Braga F.R. , Araujo J.M. , Silva A.R. , Tavela A.O. 
Published: January 2009

AbstractThe predatory capacity of nematophagous fungi Duddingtonia flagrans (AC001), Monacrosporium thaumasium (NF34a), M. appendiculatum (CGI), M. sinense (SF53), Arthrobotrys conoides (I-40), A. cladodes (CG719) and A. robusta (I-31) on infective Ancylostoma sp. larvae (L3) was evaluated. Compared with the control without fungi there was a significant reduction (P < 0.05) of 87.02%, 82.74%, 47.93%, 60.49%, 76.89%, 71.33% and 86.02% in the mean number of Ancylostoma sp. (L3) recovered from treatments with the isolates AC001, NF34a, CGI, SF53, I-40, CG719 and I-31, respectively. Isolates AC001, I-31 and NF34a were more effective in capturing L3 during the in vitro assay. Isolates were then in vivo evaluated for the capacity to remain viable after passing through the gastrointestinal tract of dogs, while still maintaining their predatory activity against L3. Fungal isolates survived the passage and showed efficient predation 48 h after fungal administration to the dogs (P < 0.05). After this time, only the isolate NF34a remained effective up to 96 h after administration (P < 0.05). Monacrosporium thaumasium, D. flagrans and A. robusta are potential biological control agents of Ancylostoma sp. in dogs.
Light microscopy study of cisplatin-induced ototoxicity in rats
Authors: de Freitas M R , de Castro Brito G A , de Carvalho J V , Gomes R M , Barreto Martins M J , de Albuquerque Ribeiro R 
Published: January 2009

AbstractBackground:Although most studies on animal ototoxicity employ scanning electron microscopy, all cochlear structures may be identified with light microscopy. This paper describes a simple method of histological assessment of cisplatin-induced ototoxicity in rats, and relates morphological changes to functional changes in hearing detected by distortion product evoked otoacoustic emissions.Materials and methods:Male Wistar rats were injected with 8 mg/kg/day cisplatin, or with an equivalent volume of saline solution, for three consecutive days. They underwent distortion product evoked otoacoustic emission testing at baseline and at 24 or 48 hours after the last administration. At the end of the experiment, the animals were sacrificed and their cochleae were retrieved and prepared for haematoxylin and eosin staining.Results:A four-point scoring system was used to grade injury to the external ciliated cells, as indicated by the number of cells absent from the basal turn of the cochlear duct. A four-point scoring system was also used to grade stria vascularis injury, as indicated by the degree of shrinkage of the intermediate cells. Scores were significantly higher in groups treated with cisplatin compared with controls. Morphological changes were confirmed by decreased distortion product evoked otoacoustic emission amplitudes in animals treated with cisplatin.Conclusion:This method is simple to perform with routine histology equipment and is appropriate for the study of acute, cisplatin-induced ototoxicity in rats.
Adaptive control of redundant robot manipulators with sub-task objectives
Authors: Tatlicioglu Enver , Braganza David , Burg Timothy C. , Dawson Darren M. 
Published: January 2009

SUMMARYIn this paper, adaptive control of kinematically redundant robot manipulators is considered. An end-effector tracking controller is designed and the manipulator's kinematic redundancy is utilized to integrate a general sub-task controller for self-motion control. The control objectives are achieved by designing a feedback linearizing controller that includes a least-squares estimation algorithm to compensate for the parametric uncertainties. Numerical simulation results are presented to show the validity of the proposed controller.
Three Plays by Deborah Levy: a Brief Introduction
Authors: Charitou Irini 
Published: January 2009

DEBORAH LEVY wrote Pax as the result of a commission from the Women's Theatre Group to write an ‘anti-nuclear’ play. In her own words, she detests ‘those last-two-minutes-in-a-bunker-type scenarios’, so she decided to write an epic play with Europe in the twentieth century as a focal point. Pax takes on board Europe's past, present, and future. There are four women characters in the play, The Keeper, The Hidden Daughter, The Mourner, and The Domesticated Woman. In the published edition of Pax (Plays by Women, Vol. VI, ed. Mary Remnant, Methuen, 1987), Levy describes how she envisaged these characters:I found four archetypes, who represented twentieth-century Europe for me.
Evolution of a Company
Authors: Verma Jatinder 
Published: January 2009

TARA presented its first production, Tagore's Sacrifice, in 1977, so this year marks the company's Sacrifice, in 1977, so this year marks the company's twentieth anniversary. How did it come into being?It was, as with most companies, a mixture of accident and intention. The intention part of it relates to 4 June 1976, which was a day when this young Sikh lad in Southall, Gurdeep Singh Chaggar, was killed. It became very obvious within a day or so that this was a racist murder. In retrospect it doesn't seem to be a terribly significant thing, because we've had so many; but at the time it galvanized a particular generation of Asians.
Impact on rates and time to first central vascular-associated bloodstream infection when switching from open to closed intravenous infusion containers in a hospital setting
Authors: FRANZETTI F. , BORGHI B. , RAIMONDI F. , ROSENTHAL V. D. 
Published: January 2009

SUMMARYAn open-label, prospective cohort, active healthcare-associated infection surveillance sequential study was conducted in four Italian intensive-care units. The aim was to determine the effect of switching from open (glass) to closed fully collapsible plastic intravenous (i.v.) infusion containers (Viaflo®) on rate and time to onset of central venous catheter-associated bloodstream infections (CVC-BSI). A total of 1173 adult patients were enrolled. The CVC-BSI rate during the open container period was significantly higher than during the closed container period (8·2vs. 3·5 BSI/1000 CVC days, relative risk 0·43, 95% confidence interval 0·22–0·84,P=0·01). The probability of developing a CVC-BSI was assessed over time comparing open and closed i.v. infusion containers. In the closed container period, it remained fairly constant (0·8% at days 1–3 to 1·4% at days 7–9) whereas during the open container period it increased (2% at days 1–3 to 5·8% at days 7–9). Overall, the chance of acquiring a CVC-BSI significantly decreased by 61% in the closed container period (Cox proportional hazard ratio 0·39,P=0·004).
Host condition and individual risk of cowpox virus infection in natural animal populations: cause or effect?
Authors: BELDOMENICO P. M. , TELFER S. , LUKOMSKI L. , GEBERT S. , BENNETT M. , BEGON M. 
Published: January 2009

SUMMARYRecent studies have provided evidence that endemic pathogens may affect dynamics in animals. However, such studies have not typically considered that infected individuals might have a preceding underlying poor condition. We examined whether individuals in poor condition are more likely to become infected by an endemic pathogen, using as a system the dynamics of cowpox virus in field voles. With data from monthly sampled vole populations, a nested case-control study evaluated whether susceptible individuals with poorer condition had higher probabilities of contracting cowpox. The influence of condition was found to be considerable, especially for males. At times when a susceptible male with good body condition had a relatively low probability of becoming infected, a susceptible male with poor body condition was twice as likely to contract cowpox; if this male was also anaemic, the chances were almost quadrupled. We discuss the care needed when interpreting the findings of wildlife disease studies.
Was encephalitis lethargica a post-influenzal or some other phenomenon? Time to re-examine the problem
Authors: MORTIMER P. P. 
Published: January 2009

SUMMARYEncephalitis lethargica (EL) was first reported in 1917 in central Europe. It became epidemic in the winter of 1918/1919 concurrently with the pandemic of influenza, and by then had reached Russia and North America. It spread throughout the world in epidemic form, mainly in the succeeding winters, up to 1927. By then about 65 000 cases had been reported, although the true number worldwide can only be guessed at. EL mortality was about 30% in the acute stage, and similar during recurrences. Half of the survivors had persistent or recurrent neuro-psychiatric illness, with Parkinsonism a frequent end stage. Most contemporary observers attributed EL to a virus and some believed it was specifically a post-influenzal complication. The epidemiology of EL mostly points to an infective cause, e.g. a seasonal respiratory or gastrointestinal virus with infrequent encephalitic expression but the ability to persist, flare and progressively damage the brain. However, any link with the influenza virus strain of 1918/1919 remains hypothetical. The aetiological theories that have been applied to EL are reviewed and the question is raised whether broader laboratory investigation might now reveal a continuing low endemicity of EL and identify its cause.
Season of birth and risk of rotavirus diarrhoea in children aged <5 years
Authors: ATCHISON C. J. , TAM C. C. , LOPMAN B. A. 
Published: January 2009

SUMMARYThis study investigates whether a child's risk of rotavirus diarrhoea is associated with season of birth in England and Wales, countries where rotavirus infections are highly seasonal. Poisson regression models were fitted to weekly counts of laboratory-confirmed rotavirus infections from children aged <5 years born between 1998 and 2007. In the first year of life, the risk of a laboratory-confirmed rotavirus infection was significantly higher for children born in summer compared with winter [relative risk (RR) 2·13, 95% confidence interval (CI) 2·07–2·19]. In the second to fifth years of life, the pattern reversed (second year of life: RR 0·73, 95% CI 0·71–0·75). The cumulative risk up to age 5 years remained significantly higher for children born in summer compared with winter due to the increased risk for summer births during their first year of life. Maternal immunity and age-specific levels of exposure to rotavirus could explain our findings.
Pubertal changes in emotional information processing: Pupillary, behavioral, and subjective evidence during emotional word identification
Authors: Silk Jennifer S. , Siegle Greg J. , Whalen Diana J. , Ostapenko Laura J. , Ladouceur Cecile D. , Dahl Ronald E. 
Published: January 2009

AbstractThis study investigated pupillary and behavioral responses to an emotional word valence identification paradigm among 32 pre-/early pubertal and 34 mid-/late pubertal typically developing children and adolescents. Participants were asked to identify the valence of positive, negative, and neutral words while pupil dilation was assessed using an eyetracker. Mid-/late pubertal children showed greater peak pupillary reactivity to words presented during the emotional word identification task than pre-/early pubertal children, regardless of word valence. Mid-/late pubertal children also showed smaller sustained pupil dilation than pre-/early pubertal children after the word was no longer on screen. These findings were replicated controlling for participants' age. In addition, mid-/late pubertal children had faster reaction times to all words, and rated themselves as more emotional during their laboratory visit compared to pre-/early pubertal children. Greater recall of emotional words following the task was associated with mid-/late pubertal status, and greater recall of emotional words was also associated with higher peak pupil dilation. These results provide physiological, behavioral, and subjective evidence consistent with a model of puberty-specific changes in neurobehavioral systems underpinning emotional reactivity.
The onset of puberty: Effects on the psychophysiology of defensive and appetitive motivation
Authors: Quevedo Karina M. , Benning Stephen D. , Gunnar Megan R. , Dahl Ronald E. 
Published: January 2009

AbstractWe examined puberty-specific effects on affect-related behavior and on the psychophysiology of defensive and appetitive motivation while controlling for age. Adolescents (N = 94, ages = 12 and 13 years) viewed 75 pictures (International Affective Picture System: pleasant, neutral, and aversive) while listening to auditory probes. Startle response and postauricular (PA) reflex were collected as measures of defensive and appetitive motivation, respectively. Pubertal status and measures of anxiety/stress reaction and sensation/thrill seeking were obtained. Mid-/late pubertal adolescents showed enhanced startle amplitude across all picture valences. A Puberty × Valence interaction revealed that mid-/late pubertal adolescents showed appetitive potentiation of the PA, whereas pre-/early pubertal adolescents showed no modulation of the PA reflex. Mid-/late pubertal adolescents also scored significantly higher on measures of sensation/thrill seeking than did their pre-/early pubertal peers and puberty moderated the association between psychophysiology and behavioral measures, suggesting that it plays a role in reorganizing defensive and appetitive motivational systems.
Transactional processes in child disruptive behavior and maternal depression: A longitudinal study from early childhood to adolescence
Authors: Gross Heather E. , Shaw Daniel S. , Burwell Rebecca A. , Nagin Daniel S. 
Published: January 2009

AbstractAlthough much has been written about the utility of applying Sameroff and Chandler's transactional perspective to the study of child psychopathology, relatively few researchers have used such an approach to trace the emergence of child problem behavior from infancy to adolescence. Using a sample of 289 male toddlers from predominantly low-income families, the current study examined associations between various forms of early child disruptive behavior, subsequent trajectories of maternal depressive symptoms over the course of 8 years, and adolescent problem behavior. Results indicated that early child noncompliance was the most robust predictor of more chronic and elevated trajectories of maternal depression, which in turn discriminated teacher and youth reports of adolescent antisocial behavior but not internalizing symptoms. The findings were consistent with transactional perspectives of developmental psychopathology that have emphasized the dynamic interplay between child and parent characteristics.
Disinhibited social behavior among internationally adopted children
Authors: Bruce Jacqueline , Tarullo Amanda R. , Gunnar Megan R. 
Published: January 2009

AbstractPostinstitutionalized children frequently demonstrate persistent socioemotional difficulties. For example, some postinstitutionalized children display an unusual lack of social reserve with unfamiliar adults. This behavior, which has been referred to as indiscriminate friendliness, disinhibited attachment behavior, and disinhibited social behavior, was examined by comparing children internationally adopted from institutional care to children internationally adopted from foster care and children raised by their biological families. Etiological factors and behavioral correlates were also investigated. Both groups of adopted children displayed more disinhibited social behavior than the nonadopted children. Of the etiological factors examined, only the length of time in institutional care was related to disinhibited social behavior. Disinhibited social behavior was not significantly correlated with general cognitive ability, attachment-related behaviors, or basic emotion abilities. However, this behavior was negatively associated with inhibitory control abilities even after controlling for the length of time in institutional care. These results suggest that disinhibited social behavior might reflect underlying deficits in inhibitory control.
Emotion socialization, child emotion understanding and regulation, and adjustment in urban African American families: Differential associations across child gender
Authors: Cunningham Jera Nelson , Kliewer Wendy , Garner Pamela W. 
Published: January 2009

AbstractThe prospective relation of maternal emotion philosophy to children's emotion understanding and regulation and positive and negative adjustment was investigated. Sixty-nine African American youth (50% male;Mage = 11.29 years) and their maternal caregivers living in high violence areas of a midsized city participated in this interview study. Caregivers' meta-emotion philosophy predicted child emotion understanding and emotion regulation, which also were associated with Time 2 grades, internalizing behaviors, externalizing behaviors, and social skills after controlling for Time 1 adjustment. Emotional understanding mediated the relationship between caregivers' emotional socialization and boys' internalizing behaviors and between caregivers' emotional socialization and girls' social skills. In addition, emotion regulation mediated the relationships between emotional socialization and all four outcomes for boys. Implications for future work on emotion socialization and clinical intervention, particularly related to emotion regulation, are discussed.
Distress and academic achievement among adolescents of affluence: A study of externalizing and internalizing problem behaviors and school performance
Authors: Ansary Nadia S. , Luthar Suniya S. 
Published: January 2009

AbstractThe main objectives of this study were to prospectively examine the relationship between externalizing (substance use and delinquency) and internalizing (depression and anxiety) dimensions and academic achievement (grades and classroom adjustment), as well as continuity over time in these domains, within a sample of wealthy adolescents followed from 10th to 12th grades (n= 256). In both parts of the study, cluster analyses were used to group participants at 10th grade and then group differences were evaluated on adjustment outcomes over time. In Part 1, problem behavior clusters revealed differences on academic indices with the two marijuana using groups—marijuana users and multiproblem youth—exhibiting the worst academic outcomes at all three waves. For Part 2, the two lowest achieving groups reported the highest distress across all externalizing dimensions over time. Stability across the three waves was found for both personal and academic competence as well as the associations between these two domains. Results are discussed in relation to intervention efforts targeting wealthy students at risk.
Population trends and conservation status of the Northern Rockhopper PenguinEudyptes moseleyiat Tristan da Cunha and Gough Island
Authors: CUTHBERT RICHARD , COOPER JOHN , BURLE MARIE-HELENE , GLASS CONRAD J. , GLASS JAMES P. , GLASS SIMON , GLASS TREVOR , HILTON GEOFF M. , SOMMER ERICA S. , WANLESS ROSS M. , RYAN PETER G. 
Published: January 2009

SummaryPopulations of the recently split Northern Rockhopper PenguinEudyptes moseleyiare restricted to Tristan da Cunha and Gough Island in the South Atlantic, and Amsterdam and St Paul in the Indian Ocean. The majority of the population is in the Atlantic (> 80%), but population trends at Tristan da Cunha and Gough are uncertain. Early records indicate “millions” of penguins used to occur at Tristan da Cunha and Gough Island. The most recent estimates indicate declines in excess of 90% for both Gough and the main island of Tristan that have occurred over at least 45 and 130 years, respectively. Numbers breeding at Inaccessible and Nightingale islands (TDC) also may have declined since the 1970s, albeit modestly, whereas numbers on Tristan appear stable over the last few decades. Current population estimates are 32,000–65,000 pairs at Gough, 18–27,000 at Inaccessible, 19,500 at Nightingale, and 3,200–4,500 at Tristan. Numbers and trends at Middle Island (TDC) are unknown. Middle Island supported an estimated 100,000 pairs in 1973, and recent observations suggest this colony is being impacted by competition for space with recently recolonising Subantarctic Fur SealsArctocephalus tropicalis. Past human exploitation and the impact of introduced predators may be responsible for the historical decline in numbers at Tristan, but these factors cannot explain the sharp decrease (since the 1950s) at Gough Island. Overall, declines at Gough, Tristan, Nightingale and Inaccessible islands indicate a three-generation decline of > 50%. Taken in combination with recent decreases in Indian Ocean populations, the Northern Rockhopper Penguins is now categorised as globally ‘Endangered’. Determining the causal factors responsible for these recent declines is an urgent priority.
Associations among the food environment, diet quality and weight status in Cree children in Québec
Authors: Downs Shauna M , Arnold Amber , Marshall Dru , McCargar Linda J , Raine Kim D , Willows Noreen D 
Published: January 2009

AbstractObjectiveTo explore the relationship among children’s diet quality, weight status and food environment in subarctic Canada.DesignIn the cross-sectional study, children’s BMI was calculated, diet quality was assessed using three 24 h dietary recalls and children were asked about their home food environment and source of meals.SettingTwo Aboriginal Cree communities in northern Québec.SubjectsTwo hundred and one children in grades 4–6.ResultsThe majority (64·2 %) of children were overweight (29·9 %) or obese (34·3 %). Weight status was not associated with reported restaurant meal frequency or the home food environment. The 18 % of children who consumed three or more restaurant meals in the three days of recall consumed, on average, 2004 kJ (479 kcal) more energy daily than children consuming no restaurant meals and had higher intakes of fat, saturated fat, Ca and soda. Most foods contributing to energy and dietary fat were energy-dense market foods of low nutritional value such as sweetened beverages and snack foods. Only 68 % of children reported often having fruits and vegetables in the home and 98·5 % of children consumed less than 5 fruits and vegetables daily. Many children (42·8 %) were at risk of Zn inadequacy. Only 19 % of children consumed 2 or more servings of milk daily, and the mean intakes of Ca and vitamin D were below the recommended adequate intake. Traditional game meat was consumed infrequently, but contributed significantly to Fe and Zn intake.ConclusionsChildhood obesity in subarctic communities prevailed in a food environment typified by high-energy-density commercial foods of low nutritional value.