bluuebunny/crossref_metadata_2025_split huggingface dataset:
Climate, fire, farming and the recent vegetation history of subantarctic Campbell Island
Authors: McGlone Matt , Wilmshurst Janet , Meurk Colin 
Published: October 2007

ABSTRACTCampbell Island is a small, uninhabited peat-covered island lying in the cool southern ocean 600 km south of the New Zealand mainland. Dracophyllum scrub is the main cover from sea level to 200 m, above which tussock grassland, macrophyllous forbs and tundra dominate. Seven peat profiles from sea level to the tundra zone provide an elevational transect for pollen and charcoal records spanning the last 500 years. Scrub density was relatively low between 200 and 400 cal yrs BP, possibly due to Little Ice Age cooling, but had recovered by the time Europeans discovered the island in AD 1810. Burning and grazing during a brief farming episode (AD 1895–1931) severely reduced scrub and palatable grasses and forbs. Vegetation recovery is now well advanced following cessation of farming and the later elimination of all feral grazing animals, cats and rats. Climates were cool in the southwest Pacific during the farming period, and since AD 1970 the island has warmed by c. 0·5°C. However, there has been no upwards movement of the scrubline despite vigorous regeneration of scrub at lower altitudes. The island's cloudy, highly oceanic climate appears to offset increasing summer warmth, and scrubline is likely to rise only if clearer and less windy, as well as warmer, summers eventuate.
Separation of PEGylated α‐Lactalbumin from Unreacted Precursors and Byproducts Using Ultrafiltration
Authors: Molek Jessica R. , Zydney Andrew L. 
Published: October 2007

AbstractThere is considerable clinical interest in the use of “second‐generation” therapeutic proteins produced by conjugation of the native protein with various polymers including poly(ethylene glycol) (PEG). One of the challenges in the production of polymer‐protein conjugates is the need to remove residual polymer, native (unreacted) protein, and any reaction byproducts from the final therapeutic formulation. The overall objective of this study was to evaluate the possibility of using ultrafiltration for the purification of a model PEGylated protein. Sieving data were obtained using PEGylated α‐lactalbumin, the native protein, and the poly(ethylene glycol) over a range of pH, ionic strength, and filtrate flux using both neutral and charge‐modified composite regenerated cellulose membranes. Purification of the PEGylated protein was achieved using a two‐stage diafiltration process. The first stage used a neutral membrane to remove the unreacted protein and any small reaction byproducts while retaining the large PEGylated product. The second stage used a negatively charged membrane to remove the neutral poly(ethylene glycol) while retaining the PEGylated α‐lactalbumin as a result of strong electrostatic interactions. These results clearly demonstrate the potential of using membrane‐based separations for the purification of second‐generation therapeutic proteins.
La España de posguerra y la poesía Anglófona
Authors: Blanco Outon Cristina 
Published: October 2007

The main aim of this essay is to analyse the translations and reviews of English poetry that appeared in three representative literary journals of post-Civil War Spain: Escorial (1940-1947), Espadaña (1944-1950) and Cántico (1947-1949;1954-1957). The proportion of articles and translations, characteristics and scholarly seriousness of the sections devoted to this topic will give evidence of the ideological background of each of the three publications. We will study the reasons that led to the various choices of both poets and translators and this will also be an aid to our inquiry into the political and aesthetic assumptions of these journals.
During the 1940’ś and 50’ś, literary reviews were the place where many Spanish intellectuals and scholars could more or less openly express their different reactions towards Franco ś dictatorship. And — as professor Rubio (1976) has pointed out — as far as ideological involvement was concerned, there were two main types of journals: the “eclectic” and the “confessional”. Within the “confessional” type, Escorial would voice the official dogma whereas Espadaña would stand for the impatient detractors of the règime, the so called “tremendistas”. As for Cántico, this journal was an example of the “eclectic” position, since it welcomed all kinds of aesthetic and political creeds.
The three reviews will be examined altogether as a paradigm of the literary situation in Spain, during the years of ideological censorship and intellectual involution that followed the Civil War.
Communicative Constraints in EFL Pre-School Settings: A Corpus-Driven Approach
Authors: Romero-Trillo Jesús , García Ana Llinares 
Published: October 2007

The present article investigates the use of interrogatives made by teachers and the responses given by learners in two different (bilingual and non-bilingual) English language classroom contexts in two Spanish nursery schools.
The analysis shows the relevance of the type of functions made by the teachers through interrogatives, rather than the quantity of input in the target language. The study classifies the functions of interrogatives in the pre-school context and makes a statistical corpus-driven analysis of the questions and responses in the two schools. Finally, the article makes some suggestions, based on the data, about the kind of questions than can lead to a more natural L2 development in the classroom context.
Narrative Identity Empiricized: A Dialogical and Positioning Approach to Autobiographical Research Interviews
Authors: Lucius-Hoene Gabriele , Deppermann Arnulf 
Published: October 2007

Narrative identity has achieved a scientific status as an elaborate concept of the storied nature of human experience and personal identity. Yet, many questions remain as to its empirical substrate. By exploring the pragmatic aspect of narrative research interviewing, i.e., the performative and positioning aspects of the narrative situation and the narrative product, as well as its particular autoepistemological and communicative tasks, this article tries to bridge the gap between the theoretical concept of narrative identity and the act of constructing identity in research interviewing.
Research data generated by autobiographical interviews are usually regarded and analyzed as monological narratives drawn from autobiographical memory. Narrative research interviewing, however, is always a dialogical, pragmatic activity: Narrator and researcher establish an interpersonal relationship made up of institutional, imaginative, socio-categorial and other communicative frames which are enacted by both partners during the interview. This pragmatic constitution of the interview as an interactive process calls for a communicative and constructivist approach to oral narratives which reveals different levels of the listener’s conceptions of himself or herself and the research situation in the narrator’s story. Along with the different voices and identity constructions, the narrator also constructs different recipients in his or her discursive positioning of the listener.
By using the concept of positioning, we propose both a conceptual framework and the corresponding analytical tools for identifying textual indicators and contextual interpretative resources for a discursive approach to narrative identity constructions in research interviewing. This option allows insight into the strategies narrators employ to negotiate their identities in the situation itself, which may be fruitful for many research contexts that use the concept of narrative identity. (Narrative, Autobiography, Research Interviewing, Conversation Analysis)
Interannual to diurnal variability in the near-surface scattering layer in Drake Passage
Authors: Chereskin T. K. , Tarling G. A. 
Published: October 2007

Abstract
Chereskin, T. K., and Tarling, G. A. 2007. Interannual to diurnal variability in the near-surface scattering layer in Drake Passage. – ICES Journal of Marine Science, 64: 1617–1626. Backscattering strength was estimated from 127 shipboard surveys with an acoustic Doppler current profiler (ADCP) made during Drake Passage transits from 1999 to 2004. The backscattering strength is used to determine the characteristics of the near-surface scattering layer, which south of the Southern Antarctic Circumpolar Current Front (SACCF) is dominated by Antarctic krill (Euphausia superba). Diel vertical migration in the upper 150 m was the dominant variability observed in any single transect. When averaged over depth, there was a well-defined annual cycle in backscattering strength, with a factor of four increase from a late-winter minimum to a spring-summer maximum over a period of four months, followed by a more gentle decline during late summer and autumn. In addition, there were significant differences in scattering strength north and south of the Polar Front (PF) on both seasonal and interannnual time-scales. The average summer maximum to the north of the PF was more than twice the maximum to the south, but the winter minima were about the same. On interannual time-scales, scattering strength south of the PF displayed a negative linear trend primarily attributable to a fourfold decrease in backscattering strength south of the SACCF. No significant long-term trend in the scattering strength north of the SACCF was observed.
Correcting for effective area fished in fishery-dependent depletion estimates of abundance and capture efficiency
Authors: Walter John F. , Hoenig John M. , Gedamke Todd 
Published: October 2007

Abstract
Walter, J. F. III, Hoenig, J. M., and Gedamke, T. 2007. Correcting for effective area fished in fishery-dependent depletion estimates of abundance and capture efficiency. – ICES Journal of Marine Science 64: 000–000. Depletion methods are widely used to estimate capture efficiency and abundance. However, they are highly dependent on the depletion area assumed. In open-ocean depletion studies, it is difficult to determine the true area of depletion. Satellite vessel monitoring systems (VMS) offer the potential to determine the area effectively fished. Observer-collected catch-and-effort data from the 1999 Atlantic sea scallop fishery in Georges Bank Closed Area II were used to obtain spatially-explicit DeLury depletion estimates of dredge efficiency and abundance, with corrections for fished area made using VMS data. Non-area-corrected efficiency estimates often had theoretically impossible values, indicating that the naïvely assumed fished area was likely too big. Fine-scale spatial analyses on individual depletion cells confirmed this result. Corrected-area efficiency estimates exhibited reduced variability and more plausible efficiencies, with 70% of 289 individual depletion estimates falling between 20% and 55%, with a mean of 46%. Abundance estimates from individual depletion studies matched maps of abundance from a preseason survey. Results indicated a total abundance of ∼17 million pounds of scallop meat weight in the fished area, of which 6 million pounds were landed, providing an overall exploitation rate of 35%.
Molecular phylogeny of songbirds (Aves: Passeriformes) and the relative utility of common nuclear marker loci
Authors: Treplin Simone , Siegert Romy , Bleidorn Christoph , Thompson Hazell Shokellu , Fotso Roger , Tiedemann Ralph 
Published: October 2007

AbstractWhile the monophyly of the largest avian order Passeriformes as well as its suborders suboscines (Tyranni) and oscines (Passeri) is well established, lower phylogenetic relationships of this fast radiated taxon have been a continuous matter of debate, especially within the suborder oscines. Many studies analyzing phylogenetic relationships of the Passeriformes using molecular markers have been published, which led to a better resolved phylogeny. Conflicting hypotheses and still remaining uncertainties, especially within the Passerida, have repeatedly stimulated further research with additional new markers. In the present study we used a combination of established molecular markers (RAG‐1, RAG‐2, c‐myc) and the recently introduced ZENK. We accomplished phylogenetic analyses using maximum parsimony, maximum likelihood and Bayesian inference, both separately for all genes and simultaneously. To assess the phylogenetic utility of the different genes in avian systematics we analyzed the influence of each data partition on the phylogenetic tree yielded by the combined approach using partitioned Bremer support. Compared with the other single gene analyses, the ZENK trees exhibited by far the best resolution and showed the lowest amount of homoplasy. Our data indicate that this gene is—at least in passerines—suitable for inference of even old taxonomic splits.Our combined analysis yields well‐supported phylogenetic hypotheses for passerine phylogeny and apart from corroborating recently proposed hypotheses on phylogenetic relationships in the Passeriformes we provide evidence for some new hypotheses. The subdivision of the Passerida into three superfamilies, Sylvioidea, Passeroidea and Muscicapoidea, the first as sister to the two latter groups is strongly supported. We found evidence for a split between Paridae and the remaining Sylvioidea.© The Willi Hennig Society 2007.
Ciliated intestinal protozoa of black (Diceros bicornis michaeli) and white rhinoceroses (Ceratotherium simum simum) in Kenya
Authors: Obanda V. , Gakuya F. , Lekolool I. , Chege S. , Okita B. , Manyibe T. 
Published: October 2007

AbstractThe aim of this study was to survey ciliated intestinal protozoa of the black rhinoceros (Diceros bicornis michaeli) and white rhinoceros (Ceratotherium simum simum) in Kenyan National Parks. Faecal samples from 28 rhinoceroses that were chemically immobilized for translocation were opportunistically collected. Presence of ciliates was assessed using faecal floatation and sedimentation techniques. The ciliates were identified using cellular morphological features. Ophryoscoleciidae, Cycloposthiidae and Blepharocrythiidae were the three ciliate families represented. Ophryoscoleciidae had nine genera, Cycloposthiidae six genera and Blepharocorythiidae 1 genus. The dominant ciliate genus in all the rhinoceroses that were sampled was entodinium. It was found that the nutrient composition of the diet influences the diversity and numbers of intestinal ciliates, which in turn regulates the nutrient available to the animal. This interplay of nutrient composition of diet, ciliate diversity and nutritional benefits to the host has been used as an index to assess the nutritional state of ruminants. Because of the occurrence of rumenal ciliates in the hindgut fermentative chamber of the rhinoceros, such an index can be used to guide the formulation of feed mixtures for rhinoceros in captivity and remote nutritional assessments of rhinoceros both in free‐range and in captivity.
Phase I study of eptifibatide in patients with sickle cell anaemia
Authors: Lee Sheritha P. , Ataga Kenneth I. , Zayed Mohamed , Manganello Jeanne M. , Orringer Eugene P. , Phillips David R. , Parise Leslie V. 
Published: October 2007

SummaryTheαIIbβ3 antagonist eptifibatide is an effective treatment for patients with acute coronary syndromes (ACS). Platelet reactivity and CD40 ligand (CD40L) may play a role in the pathophysiology of sickle cell anaemia (SCA) similar to that in ACS, suggesting that inhibition of platelet aggregation and CD40L release by eptifibatide may benefit patients with SCA. Following eptifibatide infusion, safety and pharmacodynamic data were obtained from four SCA patients in their non‐crisis, steady states. Eptifibatide was well tolerated, with no adverse changes in the haematological, biochemical or coagulation parameters studied. Eptifibatide did not increase plasma levels of platelet factor 4 or beta‐thromboglobulin, P‐selectin exposure or platelet:leucocyte aggregate formation. Moreover, decreases in platelet aggregation and soluble CD40L (sCD40L) levels achieved in SCA patients were comparable to those observed in the treatment of ACS. Finally, indicators of inflammation, macrophage inflammatory protein‐1α, tumour necrosis factor‐αand myoglobin were reduced following eptifibatide infusion, while vasodilation correlatives, matrix metalloproteinases (MMP‐2 and MMP‐9) and leptin were increased. Based on these phase I results, eptifibatide may benefit SCA patients by inhibiting platelet aggregation, decreasing sCD40L levels and favourably altering plasma levels of inflammatory mediators.
Clinical differences between children and adults with pulmonary hypertension and sickle cell disease
Authors: Hagar R. Ward , Michlitsch Jennifer G. , Gardner Jennifer , Vichinsky Elliott P. , Morris Claudia R. 
Published: October 2007

SummaryPulmonary hypertension (PHT) is an important co‐morbidity in sickle cell disease (SCD). Despite increasing research in adults, the prevalence and implication of this condition in children is unknown. Charts of 362 SCD patients followed at the Children's Hospital & Research Center Oakland were reviewed to determine clinical variables associated with obtaining echocardiographic screening for PHT, clinical associations of PHT, and associated mortality following diagnosis in adults and children with SCD. In this cohort, patients with underlying lung abnormalities or those on chronic transfusions were more likely to have echocardiograms, however the diagnosis of PHT was often unrecognized. A different clinical phenotype for PHT in adults versus children was identified. Associations with PHT for adults included age, renal and lung disease, hepatitis C, chronic transfusions, and a history of acute chest syndrome (ACS), with ACS being protective. Surprisingly, for children, a history of sepsis, along with a history of ACS, or obstructive lung disease were associated with PHT. Survival analysis found significant mortality for PHT, with a hazard ratio of 17·3 (95% confidence interval 4·9–60·4). The divergent clinical spectrum for PHT between adults and children may point to different age‐specific mechanisms or biological expression of PHT.
The management of antenatal venous thromboembolism in the UK and Ireland: a prospective multicentre observational survey*
Authors: Voke Jennifer , Keidan Jane , Pavord Sue , Spencer Neil H. , Hunt Beverley J. ,   British Society for Haematology Obstetric Haematology Group
Published: October 2007

SummaryThis prospective observational study reports on 126 women from 25 UK centres with image‐proven antenatal venous thromboembolism (VTE), 62% deep vein thrombosis and 38% pulmonary embolism. Thrombophilia screening was of limited benefit except to identify antithrombin deficiency. Sixteen (13%) patients had previous VTE, all but one was related to previous pregnancy or combined oral contraceptive and 12 received no thromboprophylaxis in the index pregnancy, the other four thus received inadequate low molecular weight heparin (LMWH) doses. Treatment was with dalteparin in 25%, enoxaparin in 47%, tinzaparin in 25% and unfractionated heparin alone in 3%. 66% of patients received once‐daily LMWH. Anti‐activated factor X (anti‐Xa) monitoring was performed at 90% of centres, with a wide range of target values. Thus current management of antenatal VTE, despite widely diverse clinical practice, appeared effective and safe, for there were no recurrent events and postpartum haemorrhage was not increased when compared to known rates. Larger studies are required to confirm this. The need for twice as opposed to once daily LMWH and for anti‐Xa monitoring is questioned by this study. The importance of clinical risk assessment and adherence to the Royal College of Obstetricians and Gynaecologists guidelines on antenatal thromboprophylaxis, with adequate LMWH dosing is confirmed.
The frequency and fitness consequences of communal breeding in a natural population of burying beetles: a test of reproductive skew
Authors: SCOTT MICHELLE PELLISSIER , LEE WOO‐JAI , Van Der REIJDEN E. D. 
Published: October 2007

Abstract1. Reproductive cooperation occurs in diverse taxa and a defining characteristic of these social systems is how reproduction is shared. Both male and female burying beetles (Nicrophorusspp.) facultatively form associations to bury a carcass and rear a single brood, making burying beetles a model system for testing skew theory.2. In this study, 50% of 40–45 g carcasses and 75% of 55–60 g ones were buried by more than one male and/or femaleNicrophorus tomentosus.3. Females were significantly more likely to cooperate on 55–60 g carcasses than on 40–45 g ones.4. Analysis of parentage of 13 broods using microsatellite loci as genetic markers showed that maternity analysis of only 2% of the young excluded all females captured leaving the brood chamber after burial. Males previously mated with resident females or displaced by resident males fathered 7% of the young.5. The male and female remaining the longest were usually the parents of the most offspring, and reproductively dominant individuals also tended to be the largest.6. Although all but two or three individuals that helped to bury the carcass produced some offspring, reproduction was often not shared equitably. Reproduction of females was significantly skewed on six of nine 40–45 g carcasses but shared fairly equitably on all three 55–60 g ones. Reproduction was skewed among males on 7 of 10 broods.7. Both males and females relinquished a greater proportion of the brood as the days of assistance from all consexuals increased.
Relationships among long'term fisheries abundances, hydrographic variables, and gross pollution indicators in northeastern U.S. estuaries
Authors: ROSE KENNETH A. , SUMMERS J. KEVIN 
Published: October 2007

ABSTRACTCategorical time series regression was applied to 55 fish stocks in the Potomac, Hudson, Narragansett, Delaware, and Connecticut estuaries for the period 1929–1975. Interannual variability in catch per unit effort (CPUE) was related to CPUE, hydrographic variables, and pollution variables, lagged back in time to represent the conditions contributing to the multiple ages comprising each fishery. Hydrographic variables included water temperature and flow in the estuary– and, for offshore spawning stocks, wind direction and magnitude–during the months of spawning and early life stage development. Pollution variables included measures of dissolved oxygen conditions in the estuaries, volume of material dredged, and sewage loading (or human population). Lagged CPUE, hydrographic variables, and pollution variables all played important roles in explaining historical variability in CPUE. Lagged CPUE was significant in 45 of 55 stocks generally accounting for 5–35% of the variability. Lagged hydrographic variables were significant in 53 of 55 stocks, explaining an additional 5–40% of the variability unaccounted for by lagged CPUE. Lagged pollution variables were significant in 35 of 55 stocks, generally accounting for an additional 5–30% of the variability not explained by lagged CPUE and hydrographic variables. Results did not exhibit expected patterns of consistency in the importance of lagged CPUE for a species across estuaries or consistency in the importance of pollution variables across estuaries. Results did exhibit the expected north‐to‐south longitudinal pattern in the importance of timing of the hydrographic variables, the months of importance being one or two months later in more northerly estuaries. Higher‐order interaction effects were important in almost all stocks that were well‐modeled by categorical time series regression. Of the 30 stocks with final regression models having R2 > 0.55, 26 stocks involved significant interaction effects, five had only significant interaction effects (no significant main effects), and 20 stocks had significant interactions involving variables not significant as main effects. The difficulties involved in analyzing long‐term trends in fish populations and partitioning variability between natural and anthropogenic sources are discussed.