bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deer, Land, Knives and Halls: Social Change in Early Medieval England
Authors: Sykes Naomi 
Published: September 2010

AbstractIt is well known that Anglo-Saxon England witnessed dramatic changes in landscape organization, economy and social structure but this paper aims to demonstrate how a more nuanced appreciation of these transformations can be gained by weaving together different (and superficially incompatible) strands of information. Here zooarchaeological data relating to the distribution and consumption of venison are combined with evidence from studies of weapons, landscape, Old English texts and anthropology. It is argued that, between the fifth and eleventh centuries, Anglo-Saxon society moved from being a culture centred on redistribution, in which the concept of cutting up and sharing permeated every facet of life, to one of closure and privatization, as the elite attempted to distance themselves from the lower classes.
Nonlinear electromagnetic wave interactions in Hall–MHD plasmas
Authors: SHAIKH DASTGEER , SHUKŁA P. K. 
Published: September 2010

AbstractWe have developed a massively parallelized fully three-dimensional (3D) compressible Hall–magnetohydrodynamic (MHD) code to investigate inertial range electromagnetic wave cascades and dissipative processes in the regime, where characteristic length scales associated with plasma fluctuations are smaller than ion gyroradii. Such regime is ubiquitously present in the solar wind and many other collisionless space plasmas. Particularly, in the solar wind, the high time resolution databases depict a spectral break near the end of the 5/3 spectrum that corresponds to a high-frequency regime where the electromagnetic turbulent cascades cannot be explained by the usual MHD models. This refers to a second inertial range, where turbulent cascades follow a k−7/3 (where k is a wavenumber) spectrum in which the characteristic electromagnetic fluctuations evolve typically on kinetic Alfvén time scales. In this paper, we describe results from our 3D compressible Hall–MHD simulations that explain the observed k−7/3 spectrum in the solar wind plasma, energy cascade, anisotropy, and other spectral features.
Is there reduced susceptibility to praziquantel in Schistosoma japonicum? Evidence from China
Authors: WANG WEI , DAI JIAN-RONG , LI HONG-JUN , SHEN XUE-HUI , LIANG YOU-SHENG 
Published: September 2010

SUMMARYPraziquantel is widely used for the treatment of human schistosomiasis. However, in recent years, there has been increasing concern about the resistance of Schistosoma species to praziquantel. The study described here was designed to evaluate the current susceptibility to praziquantel in S. japonicum in China. During the non-transmission period of schistosomiasis, a random sample of 4760 subjects from the main endemic foci of China were examined using parasitological stool examination. In total, 584 subjects were identified as being infected with S. japonicum, with a prevalence rate of 12 27%. Among them, 565 stool-egg-positive subjects were treated with praziquantel in a single oral dose of 40 mg/kg. Six weeks post-treatment, among the 505 villagers re-examined, 480 (95 05%) had no detectable S. japonicum eggs. Twenty-one subjects still excreting eggs after the first treatment were treated with praziquantel for the second time. All stool samples, including those from those participants with second treatment were re-examined 6 weeks after the second treatment, and no stool-egg-positives were found. The results indicate that the current efficacy of praziquantel against S. japonicum is still high and has not changed after more than 2 decades of repeated, expanded chemotherapy in the main endemic areas of China. It is suggested that no evidence of tolerance or resistance to praziquantel in S. japonicum was detected in China.
Role-playing and identity affirmation in international politics: Britain's reinvasion of the Falklands, 1982
Authors: McCOURT DAVID M. 
Published: September 2010

AbstractDid Britain reinvade the Falklands because of its ‘identity’? Or was reinvasion instead required by its ‘role’ in international politics? In this article I show that a complete constructivist explanation of Britain's response must consider both its identity affirmation, which constructivist International Relations (IR) theory would certainly draw attention to, but also the role it played on the world stage at the beginning of the 1980s, which would very likely be overlooked. I show that a solely identity-based explanation is incomplete and ultimately unpersuasive since identities are affirmed by playing social roles, which give identity meaning. In 1982, a number of roles could have fulfilled this function for Britain; it is important then that Britain chose and was able to play the role of astatus quooriented power rather than that of a colonial power. Beyond offering a more complete interpretation of the events, the article clarifies the links between roles, identity, and action in international politics, and the type of theory appropriate to such analysis.
Does democracy need sovereignty?
Authors: TANSEY OISÍN 
Published: September 2010

AbstractNon-state entities that aspire to statehood are increasingly developing democratic norms and practices, in part to enhance their claims for independence. However, the prospects for democracy in cases of ‘problematic sovereignty’ are little understood. This article seeks to explore the important but under-explored relationship between sovereignty and democracy, and in particular to assess the extent to which sovereignty is, or is not, a prerequisite for democracy. The article advances two arguments. First, it argues that there is no clear-cut relationship between sovereignty and democracy, as sovereignty is a complex concept that is comprised of several important, and distinct, constituent elements. Second, the article argues that the legal recognition of statehood (international legal sovereignty) is of marginal importance in this area, and should not be seen as a necessary condition for democratic rule. The article examines the process of democratic transition in the non-state entity of Somaliland to provide empirical support.
Decomposing locally compact groups into simple pieces
Authors: CAPRACE PIERRE-EMMANUEL , MONOD NICOLAS 
Published: September 2010

AbstractWe present a contribution to the structure theory of locally compact groups. The emphasis is on compactly generated locally compact groups which admit no infinite discrete quotient. It is shown that such a group possesses a characteristic cocompact subgroup which is either connected or admits a non-compact non-discrete topologically simple quotient. We also provide a description of characteristically simple groups and of groups all of whose proper quotients are compact. We show that Noetherian locally compact groups without infinite discrete quotient admit a subnormal series with all subquotients compact, compactly generated Abelian, or compactly generated topologically simple.Two appendices introduce results and examples around the concept of quasi-product.
General Discussion on Symposium: Concluding Remarks
Authors: Elsley F. W. H. 
Published: September 2010

I think it is extremely important that when we are making comparisons of the advantages and disadvantages of artificial rearing, as compared with other systems of rearing, that the comparisons should be made on a valid basis.There are three ways in which the systems can be compared: firstly, they can be compared on a basis of the biological targets of the system. These represent a limit to production in the appropriate systems. Secondly, they can be compared on a basis of maximum performance under laboratory conditions, or in those situations in which scientific personnel have clear control over the system being undertaken. Thirdly, systems can be compared on the basis of the best performance achieved under purely practical conditions. This point can be illustrated by three examples:1. Number of pigs born per sow per yearSince gestation length cannot be affected, the important factors involved in the number of pigs born per sow per year are: number of pigs born, length of lactation period and the interval between weaning and service.
Learner participation patterns and strategy use in Second Life: an exploratory case study
Authors: Peterson Mark 
Published: September 2010

AbstractThis paper reports on an exploratory case study that investigates the synchronous interaction of intermediate level EFL learners in the 3D virtual world Second Life. The subjects took part in three seventy-minute chat sessions that involved the use of affordances provided by a purpose-built world within this environment. Analysis of the data revealed that the context and tasks appeared to elicit a high degree of participation. The interaction was highly learner–centered, with the majority of messages exchanged between students. The analysis further indicated that the subjects overcame initial difficulties to produce coherent target language output focused on the tasks through collaborative interaction involving the use of five transactional and two interactional discourse management strategies. Transactional strategies identified in the data were the use of split turns, time saving devices, addressivity, upper case and quotation marks. Interactional strategies were the use of politeness and keyboard symbols. The majority of these represented transfers from strategies used in non-computer-based forms of communication. The others were adaptive behaviours appropriate to the online medium. The consistent use of these strategies enabled the subjects to manage their interaction in an effective manner. Learner feedback was largely positive, and indicted that participation appeared to engender high levels of motivation and interest. This paper concludes by identifying areas of potential in future research on the use of 3D virtual worlds in CALL.
The use of the webcam for teaching a foreign language in a desktop videoconferencing environment
Authors: Develotte Christine , Guichon Nicolas , Vincent Caroline 
Published: September 2010

AbstractThis paper explores how language teachers learn to teach with a synchronous multimodal setup (Skype), and it focuses on their use of the webcam during the pedagogical interaction. First, we analyze the ways that French graduate students learning to teach online use the multimodal resources available in a desktop videoconferencing (DVC) environment to monitor pedagogical interactions with intermediate level learners of French in a North-American university. Then, we examine communicational and pedagogical aspects of this process which involves orchestrating different modalities and deploying various regulations for “semio-pedagogical” purposes. We define semio-pedagogical skills as the capacity to mediate a pedagogical interaction by combining or dissociating modalities (written, oral, and/or video) that are adapted to objectives and to the cognitive requisites of the task. We posit that these skills have to become part of the professional repertoire of future teachers, as they will increasingly be required to exploit the multimodal potentialities of online communication in their teaching.The study draws on screen capture recordings of teacher trainee-student interactions and is completed by semi-directive interviews with teacher trainees (n = 5). It aims (1) to identify the importance of webcamming in the share of the pedagogical range available to teachers and (2) analyze the non verbal dimension of pedagogical communication via DVC.The outcome of this study is the identification of five degrees of utilization of the webcam medium: there a certain gradation in the way webcamming is used (with a more or less significant use of image) when compared to other modalities. The different uses that are identified vary according to the perceived usefulness of webcamming to monitor teaching and to the teacher trainees’ capacity to manage different workspaces.
The effects of concentrate energy source on the milk production of dairy cows given a grass silage-based diet
Authors: Huhtanen P. , Jaakkola S. , Saarisalo E. 
Published: September 2010

AbstractSixteen Finnish Ayrshire cows were used in a four period cyclic change-over experiment to evaluate eight concentrate supplements in a 2 × 2 × 2 factorial arrangement. Two concentrate energy sources (starchy and fibrous) were used, each given with two levels (0 and 180 g/kg on a dry-matter (DM) basis) ofrapeseed meal (RSM) and two levels (0 and 180g/kg on DM basis) of wet distillers' solubles (WDS). The starchy concentrate (S) comprised rolled barley and oats (1:1). For the cows given the fibrous concentrate (F), 600 g/kg of the grain mixture was replaced with a mixture of fibrous by-products. Grass silage was offered ad libitum and the supplements offered at a rate of 9 kg/day (fresh weight).The cows offered F supplements consumed more silage DM than those offered S supplements (P < 0·01) but the difference in the total DM intake was smaller. The cows given S supplements produced slightly more milk than those given F supplement (26·5 v. 25·9 kg/day) but no differences were observed in the yield of milk constituents between the energy supplements. Replacing starch with fibre in the concentrate had no effect on the apparent digestibility of organic matter but tended to increase that of neutral-detergent fibre.Including RSM in the supplement increased total DM intake (P<0·05) and led to increases in the yield of milk and milk constituents (P < 0·001 and P < 0·01). Diet apparent digestibility was not affected by RSM supplementation.There were no significant interactions between concentrate energy source and RSM supplementation. Including WDS in the diet had no effect on food intake. Production responses to WDS supplementation varied with the concentrate energy source. WDS increased (at least P< 0·05) milk yield (1·0 kg/day) and the yields of fat (76 g/day) and protein (48 g/day) when given with the starchy concentrate. With the fibrous concentrate WDS had no effect on milk and protein yield, and decreased fat yield by 52 g/day (P < 0·05). The positive responses in the yields of milk fat and protein to RSM and WDS supplementation were almost additive with the starchy concentrate. Inclusion of WDS in the diet increased the apparent digestibility of organic matter and gross energy.
In vitro produced embryos as a means of achieving pregnancy and improving productivity in beef cows
Authors: Sinclair K. D. , Broadbent P. J. , Dolman D. F. 
Published: September 2010

AbstractThe possibilities of using embryo transfer (ET) with in-vitro produced embryos as an alternative to artificial insemination (Al) for achieving pregnancy in commercial cattle, and improving the number and quality of calves produced were assessed using 157 multiparous, beefX. dairy suckling cows (mainly Hereford × Friesian) in three autumn and three spring-calving herds in Scotland. Within each herd, cows were allocated at random to (i) Al; or ET with in-vitro produced embryos, either (ii) singly (ET(s)), or (Hi) in pairs (ET(t)) to establish pregnancy. In-vitro produced embryos were derived from oocytes recovered from the ovaries of heifers with high-quality carcasses post slaughter. Semen from a single Simmental sire was used for in-vitro embryo -production and for Al across all herds. Following oestrous synchronization, Al cows were inseminated at 48 and 72 h after removal of the synchrony device. ET cows that had a palpatable corpus luteum received either one or two in-vitro produced embryos placed non-surgically in the ipsilateral uterine horn on day 7 after oestrous (oestrus = day 0). Pregnancy rate, calving rate and calving difficulty were monitored for all cows. Calf performance was monitored on the farms of origin from birth to purchase and thereafter at one finishing unit until slaughter. Animals were slaughtered at a prescribed level of body fatness and saleable meat yields determined.Cows that received one in-vitro produced embryo gave birth to fewer calves than cows that were artificially inseminated or received two embryos (P < 0·01). Gestation length was longer for cows that gave birth to single ET calves (288 days; P < 0·01) than cows that gave birth to Al calves (285 days) or twin ET calves (284 days). Single ET calves were heaviest at birth (P < 0·01) and higher levels of assistance at calving were required for ET calves whether born as singles or twins. ET calves of both birth types grew more quickly (<1·00 kg/day; P<0·05) and produced larger carcasses (297 kg; P < 0·01) with higher yields of saleable meat (2207 kg; P < 0·01) than Al calves (0·92 kg/day; 281·7 kg; 206·3 kg respectively).
Effects of a grazing period on performance of finishing bulls: comparison with an indoor finishing system
Authors: Dufrasne I. , Gielen M. , Limbourg P. , van Eenaeme C. , Istasse L. 
Published: September 2010

AbstractA comparison was made between two different finishing systems with Belgian Blue bulls. Two groups of bulls were grazed during an initial 140-day period and then finished indoors with concentrates. There were two stocking rates during the grazing period: a medium at six bulls per ha (MGFI) and a high at eight bulls per ha (HGFI). A third group of bulls was finished indoors on a concentrate diet during the whole finishing period (FI). The experiment was repeated over 2 years consecutively. The pasture which was grazed at the medium stocking rate was characterized by a higher sward height (P< 0·01), more refusals (P< 0·001), less Lolium perenne (P< 0·05) and more Trifolium repens (P<0·05) than that grazed at eight bulls per ha. The live-weight gain was 1·15 kg/day during the grazing period for the MGFI bulls and 1·00 kg/day when they were taken indoors. The increase in stocking rate reduced the gain at grass (1·00 kg/day,P< 0·001) and improved the gain indoors (1·24v.1·01 kg/day,P< 0·001). In the groups which were initially grazed when compared with the indoor system, the fattening period was longer (236·0 and 241·0v.186·9 days, P<0·01) and the live-weight gain lower (1·11 and 1·10v.1·44 kg/day,P< 0·001 for MGFI, HGFI and Fl respectively). The dressing proportion was greater also (P< 0·05), and there were higher concentrations of muscles (P< 0·05) and bones (P< 0·05) in the carcass of the bulls which were grazed initially. With these bulls, the lean meat was darker (P<0·05) and lost more water although there were no effects on the myoglobin content or on shear force. The net profit was in favour of the groups which were grazed.
The effect of long photoperiod or bromocryptine treatment on prolactin concentration and fertility in ewe lambs mated at induced oestrus
Authors: Beck N. F. G. , Davies M. C. G. , Davies B. 
Published: September 2010

AbstractAn investigation was conducted into the effects of increasing plasma prolactin concentration with long photoperiod or suppressing it with bromocryptine on the fertility of ewe lambs. One hundred and twenty dim Forest ewe lambs were divided into three groups: group C was kept as a control; group L was exposed to a long photoperiod (16 h light: 8 h dark) and group B was given daily injections of 1 mg bromocryptine from 12 days before until 21 days after mating. All three groups were mated in late November, 30 days after housing, following progestagen/PMSG treatment. Post-mating prolactin concentrations were significantly higher in group L and lower in group B compared with group C (P > 0·05). There was a tendency for pregnancy rate and the number of corpora lutea to be represented by viable foetuses to be lower in group L than in group C (P < 0·05). Furthermore, post-mating progesterone concentration was higher in this group compared with those in group C (P > 0·05). In a second experiment, 100 Welsh Χ Texel ewe lambs were given treatment C or L. Embryo survival tended to be lower and crown rump length, embryo weight and amniotic sac width were reduced at 25 days post mating in the animals given treatment L, compared with those given treatment C (P < 0·05). The combined results of the experiments indicated that fewer corpora lutea were represented by viable embryos or foetuses in group L than in group C (P < 0·05). These results suggest that embryo growth and survival is reduced in animals bred under a long photoperiod.
Effects of clover and milk in the diet of grazed lambs on meat quality
Authors: Vipond J. E. , Marie S. , Hunter E. A. 
Published: September 2010

AbstractThe eating quality of lambs slaughtered at weaning or 8 to 9 weeks later off pastures of diploid grass (D), tetraploid grass (T) and tetraploid grass/white clover (TC) was studied. Samples of lean from grilled chops and roasted leg joints were assessed by members of a group of 36 sensory panellists for texture by rating juiciness and tenderness on an eight-point scale. Lamb and abnormal flavour were assessed in lean and fat samples. Lean from lambs slaughtered off the mother at weaning was significantly more tender than from lambs slaughtered 8 to 9 weeks later (5·8v. 5·0, s.e.d. 0·18; P < 0·001). There was a tendency for lambs slaughtered off TC to be more juicy and tender. Lean from chops was significantly more juicy and tender and of superior flavour to lean from leg and overall acceptability was higher for chops. Acceptability of lamb slaughtered at weaning was higher than of lamb slaughtered 8 to 9 weeks later (5·3v. 4·9, s.e.d. 0·14; P < 0·001).In further studies a trained sensory panel of 12 judges formed a consensus flavour profile for 10 attributes of lean and five attributes of fat. Univariate analysis revealed only small differences between treatments. Multivariate statistical procedures however identified significant treatment effects that appeared favourable to the flavour of lamb slaughtered off the mother although only around a third of the variation was explained.Analysis of weight loss on cooking showed less wastage when lambs were slaughtered off the mother (0·209 v. 0·225, s.e.d. 0·0043; P < 0·001) and when grazed on grass/clover (TC)v.grass (D, T) (0·206v. 0·222, 0·223; s.e.d. 0·0053;P < 0·01). Weight loss on cooking was negatively correlated with texture and overall acceptability.The results obtained provide evidence for enhanced eating quality from production systems involving the sale of lambs off the mother. Incorporation of grazing of clover pastures into production systems showed some small benefits.