bluuebunny/crossref_metadata_2025_split huggingface dataset:
Power-sharing in comparative perspective: the dynamics of ‘unity government’ in Kenya and Zimbabwe
Authors: Cheeseman Nic , Tendi Blessing-Miles 
Published: May 2010

ABSTRACTThis paper draws on the recent experience of Kenya and Zimbabwe to demonstrate how power-sharing has played out in Africa. Although the two cases share some superficial similarities, variation in the strength and disposition of key veto players generated radically different contexts that shaped the feasibility and impact of unity government. Explaining the number and attitude of veto players requires a comparative analysis of the evolution of civil–military and intra-elite relations. In Zimbabwe, the exclusionary use of violence and rhetoric, together with the militarisation of politics, created far greater barriers to genuine power-sharing, resulting inthe politics of continuity. These veto players were less significant in the Kenyan case, giving rise to a more cohesive outcome in the form ofthe politics of collusion. However, we find that neither mode of power-sharing creates the conditions for effective reform, which leads to a more general conclusion: unity government serves to postpone conflict, rather than to resolve it.
From food aid to food security: the case of the Safety Net policy in Ethiopia
Authors: Bishop Carly , Hilhorst Dorothea 
Published: May 2010

ABSTRACTEthiopia's Productive Safety Net Programme (PSNP) is an attempt to bring food security to 5 million people by providing them with social security to close the yearly hunger gap, coupled with development projects to lift them permanently out of poverty. The programme is an example of the new policy arrangements that aim to link relief to social security and development. This paper analyses the early implementation of the PSNP in two villages of the Amhara Region. The paper shows how the programme was in practice interpreted and used by local authorities to realise a related programme of voluntary resettlement, and how this locally changed the objective from helping the most vulnerable people, to reserving the benefits of the programme for the more affluent and economically potent households. It shows how local responses to food security policies were informed by institutional patterns, discourses about food insecurity and the articulation of policy with adjacent or past policy practices.
Fairy godfathers and magical elections: understanding the 2003 electoral crisis in Anambra State, Nigeria
Authors: Hoffmann Leena 
Published: May 2010

ABSTRACTOn 10 July 2003, a civilian coup was attempted in Anambra state in South-east Nigeria. Barely two months after Chris Ngige was sworn in as the Peoples Democratic Party (PDP) governor of Anambra, a team of armed policemen disarmed his security detail and took him into custody. The governor's attempted ousting made public the breakdown of his relationship with his political godfather, Chief Chris Uba, and sparked a debate on godfather politics in Nigeria. Using the case of Anambra, this article investigates the complex network of personalised relationships that holders of state power maintain with their national and local clientelistic constituencies. It explores the political underpinnings of the crisis and its links to national-level power dynamics, particularly within the ruling party and the Obasanjo presidency.
Effects of two dopamine-modulating genes (DAT1 9/10 and COMT Val/Met) on n-back working memory performance in healthy volunteers
Authors: Blanchard M. M. , Chamberlain S. R. , Roiser J. , Robbins T. W. , Müller U. 
Published: May 2010

BackgroundImpairments in working memory are present in many psychiatric illnesses such as attention-deficit hyperactivity disorder (ADHD) and schizophrenia. The dopamine transporter and catechol-O-methyltransferase (COMT) are proteins involved in dopamine clearance and the dopamine system is implicated in the modulation of working memory (WM) processes and neurochemical models of psychiatric diseases. The effects of functional polymorphisms of the dopamine transporter gene (DAT1) and the COMT gene were investigated using a visuospatial and numerical n-back working memory paradigm. Our n-back task was designed to reflect WM alone, and made no demands on higher executive functioning.MethodA total of 291 healthy volunteers (aged 18–45 years) were genotyped and matched for age, sex, and Barratt Impulsivity Scale (BIS) and National Adult Reading Test (NART) scores. To assess individual gene effects on WM, factorial mixed model analysis of variances (ANOVAs) were conducted with the between-subjects factor as genotype and difficulty level (0-, 1-, 2- and 3-back) entered as the within-subjects factor.ResultsThe analysis revealed that the DAT1 or COMT genotype alone or in combination did not predict performance on the n-back task in our sample of healthy volunteers.ConclusionsBehavioral effects of DAT1 and COMT polymorphisms on WM in healthy volunteers may be non-existent, or too subtle to identify without exceedingly large sample sizes. It is proposed that neuroimaging may provide more powerful means of elucidating the modulatory influences of these polymorphisms.
Neurocognitive prediction of illness knowledge after psychoeducation in schizophrenia: results from the Munich COGPIP study
Authors: Jahn T. , Pitschel-Walz G. , Gsottschneider A. , Froböse T. , Kraemer S. , Bäuml J. 
Published: May 2010

BackgroundMany patients with schizophrenia exhibit neurocognitive impairments, namely, in attentional, mnestic and executive functions. While these deficits limit psychosocial rehabilitation, their effect on psychoeducation is unknown. Within the framework of the longitudinal Munich Cognitive Determinants of Psychoeducation and Information in Schizophrenic Psychoses (COGPIP) study, we examined: (a) whether illness knowledge after psychoeducation could be predicted more precisely from the neurocognitive than from the psychopathological status of the patients; (b) which neurocognitive domains are best predictors.MethodA total of 116 in-patients with schizophrenic or schizoaffective disorders were randomized to a neurocognitive training or control condition (2 weeks) followed by a manualized psychoeducational group programme (4 weeks) and then observed over a 9-month follow-up. Repeated measurements included – among others – the Positive and Negative Syndrome Scale and a comprehensive neuropsychological test battery from which normative T scores were used to calculate one global and five domain-specific neurocognitive composite scores. Illness knowledge was measured by a questionnaire (WFB-52) tailored to the psychoeducational programme.ResultsMultiple linear regression analyses showed that, apart from baseline illness knowledge, neurocognition significantly predicted knowledge outcome as well as knowledge gain (measured by reliable change indices) after psychoeducation. This was not true for psychopathology. Among the domain-specific neurocognitive composite scores, only memory acquisition was a significant predictor of knowledge outcome and gain.ConclusionsNeurocognition, not psychopathology, is a significant predictor of illness knowledge after psychoeducation in schizophrenia. This finding should guide efforts to tailor psychoeducational interventions more closely to the patient's needs and resources.
From human motion capture to humanoid locomotion imitation Application to the robots HRP-2 and HOAP-3
Authors: Boutin Luc , Eon Antoine , Zeghloul Said , Lacouture Patrick 
Published: May 2010

SUMMARYThis paper presents a method to generate humanoid gaits from a human locomotion pattern recorded by a motion capture system. Thirty seven reflective markers were fixed on the human subject skin in order to get the subject whole body motion. To reproduce the human gait, especially the toes and heel contacts, the front and back edges of the robot's feet are used as support at the start and the end of the double support phase. The balance of the robot is respected using the zero moment point (ZMP) criterion and confirmed by the simulation software OPENHRP (General Robotics, Inc®). First, the feet trajectory as well as the ZMP reference trajectory are defined from the motion of the robot controlled as a marionette with the measured human joint angles. Then a specific inverse kinematic (IK) algorithm is proposed to find the humanoid robot's joint trajectories respecting the constraints of balance, floor contacts, and joint limits. The studied motion presented in this paper is a human walking trajectory containing a start, a movement in a straight line, a stop, and a quarter turn. The method was developed to be easily used for human-like robots of different sizes, masses, and structures and has been tested on the robot HRP-2 (AIST, Kawada Industries, Inc®) and on the small-sized humanoid robot HOAP-3 (Fujitsu Automation Ltd®).
Mean circulation and hydrography in the Ross Sea sector, Southern Ocean: representation in numerical models
Authors: Rickard Graham J. , Roberts Malcolm J. , Williams Michael J.M. , Dunn Alistair , Smith Murray H. 
Published: May 2010

AbstractThree models were used to look at the Southern Ocean Ross Sea sector circulation and hydrography. Two were climate models of low (1°) to intermediate resolution (1/3°), and one was an operational high resolution (1/10°) ocean model. Despite model differences (including physics and forcing), mean and monthly variability aspects of off-shelf circulation are consistently represented, and could imply bathymetric constraints. Western and eastern cyclonic gyral systems separated by shallow bathymetry around 180°E redistributing water between the wider Southern Ocean and the Ross Sea are found. Some model seasonal gyral transports increase as the Antarctic Circumpolar Current transport decreases. Model flows at 900 m at the gyral eastern end compare favourably with float data. On-shelf model depth-averaged west–east flow is relatively consistent with that reconstructed from longline fishing records. These flows have components associated with isopycnal gradients in both light and dense waters. The climate models reproduce characteristic isopycnal layer inflections (‘V’s) associated with the observed Antarctic Slope Front and on-shelf deep water formation, and these models transport some 4 Sv of this bottom water northwards across the outer 1000 m shelf isobath. Overall flow complexity suggests care is needed to force regional Ross Sea models.
Seed survival for three decades under thick tephra
Authors: Tsuyuzaki Shiro 
Published: May 2010

AbstractSeed longevity in situ is a prerequisite for understanding the life histories and community dynamics of species, although long-term longevity under thick tephra has not been documented because of a lack of opportunity and/or awareness. The seed bank for this study was estimated by both germination and flotation tests. Seeds of 17 species have survived with high density, having been buried under thick tephra for 30 years, since the 1977–1978 eruptions on Mount Usu, Hokkaido Island, northern Japan. The total seed density was >1000/m2. Rumex obtusifolius was the most common seed-bank species for 30 years, but decreased in density between 20 and 30 years. More seeds of Hypericum erectum occurred in deeper soil. The total seed density decreased gradually for 30 years, but H. erectum and Juncus effusus did not decline. Native seeds tended to be viable longer than exotic seeds. These results suggest that small, native seeds tend to survive longer with deep burial, while the more numerous weedy, exotic seeds located at the soil surface declined faster. The seed bank provides long-term monitoring of seed survival under natural conditions, and could be used to detect genetic changes.
A rotation design to reduce weed density in organic farming
Authors: Anderson Randy L. 
Published: May 2010

AbstractWeeds are a major obstacle to successful crop production in organic farming. Producers may be able to reduce inputs for weed management by designing rotations to disrupt population dynamics of weeds. Population-based management in conventional farming has reduced herbicide use by 50% because weed density declines in cropland across time. In this paper, we suggest a 9-year rotation comprised of perennial forages and annual crops that will disrupt weed population growth and reduce weed density in organic systems. Lower weed density will also improve effectiveness of weed control tactics used for an individual crop. The rotation includes 3-year intervals of no-till, which will improve both weed population management and soil health. Even though this rotation has not been field tested, it provides an example of designing rotations to disrupt population dynamics of weeds. Also, producers may gain additional benefits of higher crop yield and increased nitrogen supply with this rotation design.
Is the new cognitive neuroscience of social inequality equal? Deconstructing the current neurocognitive research on children’s attention
Authors: D'Angiulli Amedeo , Grebenkov Pavel 
Published: May 2010

AbstractThe relation between socioeconomic status (SES) and various outcomes, such as cognitive ability, behavior, social skills and health, has been studied for over half a century. The general consensus in interpreting the results as been that low SES is necessarily associated with cognitive and/or behavioral pathologies or deficits. Contrary to this deficit hypothesis new evidence suggests that the differences between low- and high-SES populations may be due to cognitive preferences associated with the social context where children develop. Much of this evidence has come from developmental neuroimaging studies on attention and executive control generally showing that despite differences between low- and high-SES children in neural correlates, there are no behavioral differences. Still, from within the new cognitive neuroscience of social inequality the observed differences are used to argue that low-SES children have neurocognitive impairments needing intervention/remediation. Other current research shows that low SES is associated with elevated levels of stress, and that elevated levels of stress or treatments with stress-related neuropeptides can alter certain aspects of attention. Thus, variations in attention across different SES backgrounds may be mediated by environmental stress. We review critically the connections among SES, stress and attention as well as a number of ethical, methodological and theoretical implications for health research. We argue that the deficit hypothesis is too limiting and that a comprehensive explanation of the association between SES and attention, and possibly cognition in general, requires a much broader explanatory framework grounded in both ecological and developmental theorizing that takes social context seriously.
Determinants of Influenza Vaccination among Healthcare Workers
Authors: Godin Gaston , Vézina-Im Lydi-Anne , Naccache Herminé 
Published: May 2010

Objective.To identify the determinants of influenza vaccination and the moderators of the intention-behavior relationship among healthcare workers (HCWs).Design.Prospective survey with 2-month follow-up.Setting.Three university-affiliated public hospitals.Participants.Random sample of 424 HCWs.Methods.The intention of an HCW to get vaccinated against influenza was measured by means of a self-administered questionnaire based on an extended version of the theory of planned behavior. An objective measure of behavior was extracted 2 months later from the vaccination database of the hospitals.Results.Controlling for past behavior, we found that the determinants of influenza vaccination were intention (odds ratio [OR], 8.32 [95% confidence interval {CI}, 2.82–24.50]), moral norm (OR, 3.01 [95% CI, 1.17–7.76]), anticipated regret (OR, 2.33 [95% CI, 1.23–4.41]), and work status (ie, full time vs part time; OR, 1.99 [95% CI, 1.92–3.29]). Moral norm also interacted with intention as a significant moderator of the intention-behavior relationship (OR, 0.09 [95% CI, 0.03–0.30]). Again, apart from the influence of past behavior, intention to get vaccinated was predicted by use of the following variables: attitude (ß = .32;P< .001), professional norm (β = .18;P< .001), moral norm (β = .18;P< .001), subjective norm (ß = .09;P< .001), and self-efficacy (ß = .08;P< .001). This latter model explained 89% of the variance in HCWs' intentions to get vaccinated against influenza during the next vaccination campaign.Conclusions.Our study suggests that influenza vaccination among HCWs is mainly a motivational issue. In this regard, it can be suggested to reinforce the idea that getting vaccinated can reduce worry and protect family members.
Prediction of protein–RNA binding sites by a random forest method with combined features
Authors: Liu Zhi-Ping , Wu Ling-Yun , Wang Yong , Zhang Xiang-Sun , Chen Luonan 
Published: May 2010

Abstract
Motivation: Protein–RNA interactions play a key role in a number of biological processes, such as protein synthesis, mRNA processing, mRNA assembly, ribosome function and eukaryotic spliceosomes. As a result, a reliable identification of RNA binding site of a protein is important for functional annotation and site-directed mutagenesis. Accumulated data of experimental protein–RNA interactions reveal that a RNA binding residue with different neighbor amino acids often exhibits different preferences for its RNA partners, which in turn can be assessed by the interacting interdependence of the amino acid fragment and RNA nucleotide.
Results: In this work, we propose a novel classification method to identify the RNA binding sites in proteins by combining a new interacting feature (interaction propensity) with other sequence- and structure-based features. Specifically, the interaction propensity represents a binding specificity of a protein residue to the interacting RNA nucleotide by considering its two-side neighborhood in a protein residue triplet. The sequence as well as the structure-based features of the residues are combined together to discriminate the interaction propensity of amino acids with RNA. We predict RNA interacting residues in proteins by implementing a well-built random forest classifier. The experiments show that our method is able to detect the annotated protein–RNA interaction sites in a high accuracy. Our method achieves an accuracy of 84.5%, F-measure of 0.85 and AUC of 0.92 prediction of the RNA binding residues for a dataset containing 205 non-homologous RNA binding proteins, and also outperforms several existing RNA binding residue predictors, such as RNABindR, BindN, RNAProB and PPRint, and some alternative machine learning methods, such as support vector machine, naive Bayes and neural network in the comparison study. Furthermore, we provide some biological insights into the roles of sequences and structures in protein–RNA interactions by both evaluating the importance of features for their contributions in predictive accuracy and analyzing the binding patterns of interacting residues.
Availability: All the source data and code are available at http://www.aporc.org/doc/wiki/PRNA or http://www.sysbio.ac.cn/datatools.asp
Contact: lnchen@sibs.ac.cn
Supplementary information: Supplementary data are available at Bioinformatics online.
The RNA Binding Protein Tudor-SN Is Essential for Stress Tolerance and Stabilizes Levels of Stress-Responsive mRNAs Encoding Secreted Proteins in Arabidopsis
Authors: dit Frey Nicolas Frei , Muller Philippe , Jammes Fabien , Kizis Dimosthenis , Leung Jeffrey , Perrot-Rechenmann Catherine , Bianchi Michele Wolfe 
Published: May 2010

Abstract
Tudor-SN (TSN) copurifies with the RNA-induced silencing complex in animal cells where, among other functions, it is thought to act on mRNA stability via the degradation of specific dsRNA templates. In plants, TSN has been identified biochemically as a cytoskeleton-associated RNA binding activity. In eukaryotes, it has recently been identified as a conserved primary target of programmed cell death–associated proteolysis. We have investigated the physiological role of TSN by isolating null mutations for two homologous genes in Arabidopsis thaliana. The double mutant tsn1 tsn2 displays only mild growth phenotypes under nonstress conditions, but germination, growth, and survival are severely affected under high salinity stress. Either TSN1 or TSN2 alone can complement the double mutant, indicating their functional redundancy. TSN accumulates heterogeneously in the cytosol and relocates transiently to a diffuse pattern in response to salt stress. Unexpectedly, stress-regulated mRNAs encoding secreted proteins are significantly enriched among the transcripts that are underrepresented in tsn1 tsn2. Our data also reveal that TSN is important for RNA stability of its targets. These findings show that TSN is essential for stress tolerance in plants and implicate TSN in new, potentially conserved mechanisms acting on mRNAs entering the secretory pathway.
New capabilities for Mycosphaerella graminicola research
Authors: BOWLER JUDITH , SCOTT EILEEN , TAILOR RAVI , SCALLIET GABRIEL , RAY JOHN , CSUKAI MICHAEL 
Published: May 2010

SUMMARY Mycosphaerella graminicola is a major pathogen of wheat worldwide, causing Septoria leaf blotch disease. Targeted gene disruption in M. graminicola, by Agrobacterium tumefaciens‐mediated transformation, has become an established functional genomics tool for M. graminicola research in recent years. However, in order to advance research into this economically important pathogen, further functional genomics tools need to be developed. Here, we report three new capabilities for M. graminicola research: (i) two selectable markers have been shown to work robustly in M. graminicola, namely G418 and the fungicide carboxin; (ii) the generation of a strain of M. graminicola in which the KU70 (MUS‐51) homologue has been disrupted; in this strain, homologous recombination efficiencies increased to more than 95%, whilst maintaining wild‐type growth in vitro and full pathogenicity on wheat leaves; (iii) the ability to efficiently target and generate precise mutations of specific genes in the genomic context in M. graminicola. In addition, the insertion of the E198A mutation into the β‐tubulin gene (MgTUB1), conferring resistance to the fungicide benomyl, suggests that this mutant allele may provide an additional selectable marker. The collective use of these tools will permit further advancements in our knowledge of the biology and pathogenicity of this important plant pathogen.