bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tentative evaluation of the impact of public transfers on the dynamics of poverty: The case of Russia
Authors: Clément Matthieu 
Published: January 2007

Abstract The aim of this article is to offer a dynamic impact analysis of the system of transfers in Russia, based on a comparison of indicators of well‐being measured before and after state intervention. We shall begin by assessing the impact of public transfers on different forms of poverty and demonstrate that, while the system is seeing a fall in chronic and transitional poverty, there is very little movement between categories. We shall then evaluate the capacity of the system to keep non‐poor households from falling into poverty (protection) and to help poor households escape poverty (promotion). Several studies suggest that the Russian system of transfers is well suited to protection but has proved incapable of attaining the goal of promotion. In other words, in its current form it cannot claim to be an effective tool to combat long‐term poverty.
Resource Dependency and Political Opportunity: Explaining the Transformation from Excluded Political Opposition Parties to Human Rights Organizations in Post-Communist Uzbekistan
Authors: Grodsky Brian 
Published: January 2007

AbstractWhile there is significant anecdotal evidence that excluded political opposition parties in repressive states adopt the form of human rights organizations, there is little systematic research into this phenomenon. What does exist tends to be descriptive rather than theoretical in nature. This paper draws from collective action and resource mobilization literatures, arguing that excluded political elites respond to repression by searching for political opportunities both domestically and internationally, and then transform their organizations into units better able to take advantage of those opportunities. The politics of external funding push these organizations towards a human rights and democratization orientation. The article evaluates this argument through an analysis of human rights movements in politically repressive, post-Communist Uzbekistan and considers the impact of this phenomenon on democratization and civil society development.
The Many Faces of H89: A Review
Authors: Lochner A. , Moolman J. A. 
Published: January 2007

ABSTRACTH89 is marketed as a selective and potent inhibitor of protein kinase A (PKA). Since its discovery, it has been used extensively for evaluation of the role of PKA in the heart, osteoblasts, hepatocytes, smooth muscle cells, neuronal tissue, epithelial cells, etc. Despite the frequent use of H89, its mode of specific inhibition of PKA is still not completely understood. It has also been shown that H89 inhibits at least 8 other kinases, while having a relatively large number of PKA‐independent effects which may seriously compromise interpretation of data.Thus, while recognizing its kinase inhibiting properties, it is advised that H89 should not be used as the single source of evidence of PKA involvement. H‐89 should be used in conjunction with other PKA inhibitors, such as Rp‐cAMPS or PKA analogs.
Effect of Episodic and Working Memory Impairments on Semantic and Cognitive Procedural Learning at Alcohol Treatment Entry
Authors: Pitel Anne Lise , Witkowski Thomas , Vabret François , Guillery‐Girard Bérengère , Desgranges Béatrice , Eustache Francis , Beaunieux Hélène 
Published: January 2007

Background: Chronic alcoholism is known to impair the functioning of episodic and working memory, which may consequently reduce the ability to learn complex novel information. Nevertheless, semantic and cognitive procedural learning have not been properly explored at alcohol treatment entry, despite its potential clinical relevance. The goal of the present study was therefore to determine whether alcoholic patients, immediately after the weaning phase, are cognitively able to acquire complex new knowledge, given their episodic and working memory deficits.Methods: Twenty alcoholic inpatients with episodic memory and working memory deficits at alcohol treatment entry and a control group of 20 healthy subjects underwent a protocol of semantic acquisition and cognitive procedural learning. The semantic learning task consisted of the acquisition of 10 novel concepts, while subjects were administered the Tower of Toronto task to measure cognitive procedural learning.Results: Analyses showed that although alcoholic subjects were able to acquire the category and features of the semantic concepts, albeit slowly, they presented impaired label learning. In the control group, executive functions and episodic memory predicted semantic learning in the first and second halves of the protocol, respectively. In addition to the cognitive processes involved in the learning strategies invoked by controls, alcoholic subjects seem to attempt to compensate for their impaired cognitive functions, invoking capacities of short‐term passive storage. Regarding cognitive procedural learning, although the patients eventually achieved the same results as the controls, they failed to automate the procedure. Contrary to the control group, the alcoholic groups' learning performance was predicted by controlled cognitive functions throughout the protocol.Conclusion: At alcohol treatment entry, alcoholic patients with neuropsychological deficits have difficulty acquiring novel semantic and cognitive procedural knowledge. Compared with controls, they seem to use more costly learning strategies, which are nonetheless less efficient. These learning disabilities need to be considered when treatment requiring the acquisition of complex novel information is envisaged.
Distinction between Perceptual and Attentional Processing in Working Memory Tasks: A Study of Phase-locked and Induced Oscillatory Brain Dynamics
Authors: Deiber Marie-Pierre , Missonnier Pascal , Bertrand Olivier , Gold Gabriel , Fazio-Costa Lara , Ibañez Vicente , Giannakopoulos Panteleimon 
Published: January 2007

Abstract
Working memory involves the short-term storage and manipulation of information necessary for cognitive performance, including comprehension, learning, reasoning and planning. Although electroencephalogram (EEG) rhythms are modulated during working memory, the temporal relationship of EEG oscillations with the eliciting event has not been well studied. In particular, the dynamics of the neural network supporting memory processes may be best captured in induced oscillations, characterized by a loose temporal link with the stimulus. In order to differentiate induced from evoked functional processes, the present study proposes a time-frequency analysis of the 3 to 30 Hz EEG oscillatory activity in a verbal n-back working memory paradigm. Control tasks were designed to identify oscillatory activity related to stimulus presentation (passive task) and focused attention to the stimulus (detection task). Evoked theta activity (4–8 Hz) phase-locked to the visual stimulus was evidenced in the parieto-occipital region for all tasks. In parallel, induced theta activity was recorded in the frontal region for detection and n-back memory tasks, but not for the passive task, suggesting its dependency on focused attention to the stimulus. Sustained induced oscillatory activity was identified in relation to working memory in the theta and beta (15–25 Hz) frequency bands, larger for the highest memory load. Its late occurrence limited to nonmatched items suggests that it could be related to item retention and active maintenance for further task requirements. Induced theta and beta activities displayed respectively a frontal and parietal topographical distribution, providing further functional information on the fronto-posterior network supporting working memory.
The Neural Substrate of Human Empathy: Effects of Perspective-taking and Cognitive Appraisal
Authors: Lamm Claus , Batson C. Daniel , Decety Jean 
Published: January 2007

Abstract
Whether observation of distress in others leads to empathic concern and altruistic motivation, or to personal distress and egoistic motivation, seems to depend upon the capacity for self-other differentiation and cognitive appraisal. In this experiment, behavioral measures and event-related functional magnetic resonance imaging were used to investigate the effects of perspective-taking and cognitive appraisal while participants observed the facial expression of pain resulting from medical treatment. Video clips showing the faces of patients were presented either with the instruction to imagine the feelings of the patient (“imagine other”) or to imagine oneself to be in the patient's situation (“imagine self”). Cognitive appraisal was manipulated by providing information that the medical treatment had or had not been successful. Behavioral measures demonstrated that perspective-taking and treatment effectiveness instructions affected participants' affective responses to the observed pain. Hemodynamic changes were detected in the insular cortices, anterior medial cingulate cortex (aMCC), amygdala, and in visual areas including the fusiform gyrus. Graded responses related to the perspective-taking instructions were observed in middle insula, aMCC, medial and lateral premotor areas, and selectively in left and right parietal cortices. Treatment effectiveness resulted in signal changes in the perigenual anterior cingulate cortex, in the ventromedial orbito-frontal cortex, in the right lateral middle frontal gyrus, and in the cerebellum. These findings support the view that humans' responses to the pain of others can be modulated by cognitive and motivational processes, which influence whether observing a conspecific in need of help will result in empathic concern, an important instigator for helping behavior.
Activation of Right Inferior Frontal Gyrus during Response Inhibition across Response Modalities
Authors: Chikazoe Junichi , Konishi Seiki , Asari Tomoki , Jimura Koji , Miyashita Yasushi 
Published: January 2007

Abstract
The go/no-go task, which effectively taps the ability to inhibit prepotent response tendency, has consistently activated the lateral prefrontal cortex, particularly the right inferior frontal gyrus (rIFG). On the other hand, rIFG activation has rarely been reported in the antisaccade task, seemingly an oculomotor version of the manual go/no-go task. One possible explanation for the variable IFG activation is the modality difference of the two tasks: The go/no-go task is performed manually, whereas the antisaccade task is performed in the oculomotor modality. Another explanation is that these two tasks have different task structures that require different cognitive processes: The traditional antisaccade task requires (i) configuration of a preparatory set prior to antisaccade execution and (ii) response inhibition at the time of antisaccade execution, whereas the go/no-go task requires heightened response inhibition under a minimal preparatory set. To test these possibilities, the traditional antisaccade task was modified in the present functional magnetic resonance imaging study such that it required heightened response inhibition at the time of antisaccade execution under a minimal preparatory set. Prominent activation related to response inhibition was observed in multiple frontoparietal regions, including the rIFG. Moreover, meta-analyses revealed that the rIFG activation in the present study was observed in the go/no-go tasks but not in the traditional antisaccade task, indicating that the rIFG activation was sensitive to the task structure difference, but not to the response modality difference. These results suggest that the rIFG is part of a network active during response inhibition across different response modalities.
Manipulating the Experienced Onset of Intention after Action Execution
Authors: Lau Hakwan C. , Rogers Robert D. , Passingham Richard E. 
Published: January 2007

Abstract
Using transcranial magnetic stimulation (TMS), we have tested the time needed for the perceived onset of spontaneous motor intention to be fully determined. We found that TMS applied over the presupplementary motor area after the execution of a simple spontaneous action shifted the perceived onset of the motor intention backward in time, and shifted the perceived time of action execution forward in time. The size of the effect was similar regardless of whether TMS was applied immediately after the action or 200 msec after. The results of three control studies suggest that this effect is time-limited, specific to modality, and also specific to the anatomical site of stimulation. We conclude that the perceived onset of intention depends, at least in part, on neural activity that takes place after the execution of action. A model, which is based on the mechanism of cue integration under the presence of noise, is offered to explain the results. The implications for the conscious control of spontaneous actions are discussed.
Illusory Contours Do Not Pass through the “Blind Spot”
Authors: Maertens Marianne , Pollmann Stefan 
Published: January 2007

Abstract
Our visual percepts are not fully determined by the physical stimulus input. That is why we perceive crisp bounding contours even in the absence of luminance-defined borders in visual illusions such as the Kanizsa figure. It is important to understand which neural processes are involved in creating these artificial visual experiences because this might tell us how we perceive coherent objects in natural scenes, which are characterized by mutual overlap. We have already shown using functional magnetic resonance imaging [Maertens, M., & Pollmann, S. fMRI reveals a common neural substrate of illusory and real contours in v1 after perceptual learning. Journal of Cognitive Neuroscience, 17, 1553–1564, 2005] that neurons in the primary visual cortex (V1) respond to these stimuli. Here we provide support for the hypothesis that V1 is obligatory for the discrimination of the curvature of illusory contours. We presented illusory contours across the portion of the visual field corresponding to the physiological “blind spot.” Four observers were extensively trained and asked to discriminate fine curvature differences in these illusory contours. A distinct performance drop (increased errors and response latencies) was observed when illusory contours traversed the blind spot compared to when they were presented in the “normal” contralateral visual field at the same eccentricity. We attribute this specific performance deficit to the failure to build up a representation of the illusory contour in the absence of a cortical representation of the “blind spot” within V1. The current results substantiate the assumption that neural activity in area V1 is closely related to our phenomenal experience of illusory contours in particular, and to the construction of our subjective percepts in general.
Epochal Changes in ENSO–Streamflow Relationships in Sri Lanka
Authors: Zubair Lareef , Chandimala Janaki 
Published: January 2007

Abstract
In an effort to use climate predictions for streamflow and malaria hazard prediction, the decadal variability of the El Niño–Southern Oscillation (ENSO) influence on streamflow and rainfall in the Kelani River in Sri Lanka was investigated based on records from 1925 to 1995. In the last half century, the warm ENSO phase was associated with decreased annual streamflow and the cold ENSO phase with increased streamflow. The annual streamflow had a negative correlation (warm ENSO associated with low streamflow) with the concurrent ENSO index of Niño-3.4 that was significant at the 5% level. This negative correlation with Niño-3.4 is enhanced to a 1% significance level if the aggregate streamflow from January to September alone is considered. There has been a transition in correlation between January–September streamflow and ENSO between the 1950s and 1970s from near or above zero to negative values that have 95% significance levels reminiscent of an epochal shift. This shift was evident when considering the period when the southwest monsoon dominates (April–September) or when correlations were undertaken between the seasonal streamflow and rainfall and the ENSO index in the month prior to each season. Since the relationship between ENSO and Sri Lankan streamflow has strengthened in recent decades the potential for ENSO-based prediction is retained. The epochal shift may also explain why malaria epidemics ceased to co-occur frequently with El Niño episodes after 1945.
Barotropic Instability of a Zonal Jet: From Nondivergent Perturbations on the β Plane to Divergent Perturbations on a Sphere
Authors: Paldor Nathan , Dvorkin Yona 
Published: January 2007

Abstract
The linear instability of divergent perturbations that evolve on a cos2 mean steady zonal jet embedded in a zonal channel on the β plane and on a rotating sphere is studied for zonally propagating wavelike perturbations of the shallow-water equations. The complex phase speeds result from the imposition of the no-flow boundary conditions at the channel walls on the numerical solutions of the linear differential equations for the wave latitude-dependent amplitude. In addition, the same numerical method is applied to the traditional problem of linear instability of nondivergent perturbations on the β plane where results reaffirm the classical, analytically derived, features. For these nondivergent perturbations, the present study shows that the growth rate increases monotonically with the jet maximal speed and that the classical result of a local maximum at some finite westward-directed speed results from scaling the growth rates on the jet’s speed. In contrast to nondivergent perturbations, divergent perturbations on the β plane have no short-wave cutoff, and so the nondivergent solution does not provide an estimate for the divergent solution, even when the ocean is 1000 km deep (i.e., when the speed of gravity waves exceeds 10 Mach). For realistic values of the ocean depth, the growth rates of divergent perturbations are smaller than those of nondivergent perturbations, but with the increase in the ocean depth they become larger than those of nondivergent perturbations. For both perturbations, a slight asymmetry exists between eastward- and westward-flowing jets. The growth rates of divergent perturbations on a sphere are similar to those on the β plane for the same values of the model parameters, but the asymmetry between eastward and westward jets is more conspicuous on a sphere. The value of g′H′ (g′ is the reduced gravity; H′ is the equivalent mean layer thickness), which is filtered out in nondivergent theory, determines for divergent perturbations the relative magnitude of zonal velocity, meridional velocity, and height but has little effect on the growth rates.
The relationship between beliefs about depression and coping strategies: Gender differences
Authors: Kelly Morgen A. R. , Sereika Susan M. , Battista Deena R. , Brown Charlotte 
Published: January 2007

Objective. Leventhal's common‐sense model of illness representation provides a conceptual framework for exploring the relationship between beliefs about depressive illness and use of coping strategies. We explored this relationship among depressed patients both across genders and in terms of gender differences.Design. Depressed primary care patients prescribed antidepressants provided self‐report measures of beliefs about depression, emotional reaction to depression, beliefs about medications and coping strategies used. Baseline data from a longitudinal study is presented.Method. Primary data analyses were conducted using canonical correlation analysis, a multivariate statistical method akin to principal component and regression analyses. It allows for parsimonious description of the association between two multivariate sets of variables (in this case, beliefs about depression and coping strategies) by identifying pairs of linear combinations that account for the majority of the between association from the two sets of variables.Results. The sample consisted of 189 depressed primary care patients (70.4% female). Results indicated that emotional reaction to depression is a major factor in determining coping strategies. Greater emotional reaction to depression was associated with maladaptive coping for men and women, while women showed additional relationships between greater perceived control over depression and more adaptive coping techniques as well as between perception of consequences of depression and problem solving.Conclusions. The present research provides preliminary evidence that beliefs about depression are related to coping styles. Further, men and women may differ in the way in which their perceptions about depression influence coping styles adopted.
Anesthesia induced by administration of xylazine hydrochloride alone or in combination with ketamine hydrochloride and reversal by administration of yohimbine hydrochloride in captive Axis deer (Axis axis)
Authors: Sontakke Sadanand D. , Reddy Anuradha P. , Umapathy Govindaswamy , Shivaji Sisinthy 
Published: January 2007

Abstract
Objective—To determine the anesthetic dose and cardiopulmonary effects of xylazine hydrochloride when used alone or in combination with ketamine hydrochloride and evaluate the efficacy of yohimbine hydrochloride to reverse anesthetic effects in captive Axis deer.
Animals—35 adult (10 males and 25 females) Axis deer (Axis axis).
Procedures—All deer were anesthetized by IM administration of xylazine (3.5 mg/kg; experiment 1), a combination of ketamine and xylazine (1.25 and 1.5 mg/kg, respectively; experiment 2), or another combination of ketamine and xylazine (2.5 and 0.5 mg/kg, respectively; experiment 3). In addition, female deer were also anesthetized by IM administration of a third combination of ketamine and xylazine (1.5 and 1 mg/kg, respectively; experiment 4). Ten to 40 minutes after induction, anesthesia was reversed by IV administration of yohimbine (5, 8, or 10 mg).
Results—In male deer, experiment 3 yielded the most rapid induction of anesthesia. In females, experiment 4 yielded the best induction of anesthesia without adverse effects. All doses of yohimbine reversed anesthesia. Duration of anesthesia before administration of yohimbine had no effect on recovery time.
Conclusions and Clinical Relevance—A combination of ketamine and xylazine can be used to induce anesthesia in Axis deer. Furthermore, anesthetic effects can be reversed by administration of yohimbine.