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General Questions (general + question)
Selected Abstractse-Learning: The student experienceBRITISH JOURNAL OF EDUCATIONAL TECHNOLOGY, Issue 4 2007Jennifer Gilbert The paper draws on in-depth qualitative. comments from student evaluation of an e-learning module on an MSc in Information Technologies and Management, to develop a picture of their perspective on the experience. Questionnaires that yielded some basic quantitative data and a rich seam of qualitative data were administered. General questions on satisfaction and dissatisfaction identified the criteria that student used in evaluation, while specific questions of aspects of the module generated some insights into the student learning process. The criteria used by students when expressing satisfaction are: synergy between theory and practice; specific subject themes; discussion forums and other student interaction; and, other learning support. The themes that are associated with dissatisfaction include: robustness and usability of platform; access to resources (such as articles and books); currency of study materials; and, student work scheduling. Aspects of the student learning experience that should inform the development of e-learning include: each student engages differently; printing means that students use the integrated learning environment as a menu; discussion threads and interaction are appreciated, but students are unsure in making contributions; and, expectations about the tutor's role in e-learning are unformed. [source] Responses of Redfronted Lemurs to Experimentally Modified Alarm Calls: Evidence for Urgency-Based Changes in Call StructureETHOLOGY, Issue 9 2002Claudia Fichtel Alarm calls can serve as model systems with which to study this general question. Therefore, we examined the information content of terrestrial predator alarm calls of redfronted lemurs (Eulemur fulvus rufus), group-living Malagasy primates. Redfronted lemurs give specific alarm calls only towards raptors, whereas calls given in response to terrestrial predators (woofs) are also used in other situations characterized by high arousal. Woofs may therefore have the potential to express the perceived risk of a given threat. In order to examine whether different levels of arousal are expressed in call structure, we analysed woofs given during inter-group encounters or in response to playbacks of a barking dog, assuming that animals engaged in inter-group encounters experience higher arousal than during the playbacks of dog barks. A multivariate acoustic analysis revealed that calls given during group encounters were characterized by higher frequencies than calls given in response to playbacks of dog barks. In order to examine whether this change in call structure is salient to conspecifics, we conducted playback experiments with woofs, modified in either amplitude or frequencies. Playbacks of calls with increased frequency or amplitude elicited a longer orienting response, suggesting that different levels of arousal are expressed in call structure and provide meaningful information for listeners. In conclusion, the results of our study indicate that the information about the sender's affective state is expressed in the structure of vocalizations. [source] Measuring inequality in self-reported health,discussion of a recently suggested approach using Finnish dataHEALTH ECONOMICS, Issue 7 2004Jorgen Lauridsen Health surveys often include a general question on self-assessed health (SAH), usually measured on an ordinal scale with three to five response categories, from ,very poor' or ,poor' to ,very good' or ,excellent'. This paper assesses the scaling of responses on the SAH question. It compares alternative procedures designed to impose cardinality on the ordinal responses. These include OLS, ordered probit and interval regression approaches. The cardinal measures of health are used to compute and decompose concentration indices for income-related inequality in health. Results are provided using Finnish data on 15D and the SAH questions. Further evidence emerges for the internal validity of a method used in a pioneering study by van Doorslaer and Jones which was based on Canadian data on the McMaster Health Utility Index Mark III (HUI) and SAH. The study validates the conclusions drawn by van Doorslaer and Jones. It confirms that the interval regression approach is superior to OLS and ordered probit regression in assessing health inequality. However, regarding the choice of scaling instrument, it is concluded that the scaling of SAH categories and, consequently, the measured degree of inequality, are sensitive to characteristics of the chosen scaling instrument. Copyright © 2003 John Wiley & Sons, Ltd. [source] Disentangling complex fine-scale ecological patterns by path modelling using GLMM and GISJOURNAL OF VEGETATION SCIENCE, Issue 5 2009Vegar Bakkestuen Abstract Question: How can statistical modelling tools (GLMM) and GIS be used as an aid in understanding complex ecological patterns? This general question was approached by using bryophyte demography data as an example. More specifically, we asked what is the contribution of terrain shape to explaining the performance and fate of plant individuals, controlling for all other known relationships? Location: Norway. Methods: Information on demography was obtained for 140 populations of the perennial clonal bryophyte Hylocomium splendens in Norway spruce forests during an 11-year period (1992-2002). Performance (size and branching pattern) was recorded for mature segments and fate was recorded for growing points. Positions of each of the more than 30 000 recorded bryophyte ramets were coupled with (micro-) topographic characteristics (slope and convexity) derived from fine-scale digital elevation models in a GIS framework. Carefully planned sequences of generalised linear mixed models (GLMM) were performed to test predictions from a conceptual path model. Results: We demonstrate strong dependence of size on branching, fate and on vertical position in the bryophyte carpet, and an effect of vertical position on branching pattern. Micro-topography contributed to explaining plant performance by four different mechanisms: (1) a direct effect of slope on the segment's vertical position in the carpet; (2-3) direct effects of both slope and convexity on fates of individuals via controls on risk of burial; and (4) an indirect effect of convexity on branching pattern via a direct effect on size. No indication of a direct effect of terrain on branching was found. Conclusions: Our study exemplifies the usefulness of GLMM for disentangling complex ecological relationships. Specifically, we recognise micro-topography as a potentially important factor for plant demography in general and for performance and fate of individuals in particular. [source] Too Much, Too Late: The Advocacy Act in OntarioLAW & POLICY, Issue 1 2000Ernie Lightman This paper examines the concept of government-based social advocacy on behalf of vulnerable people in the community. It uses as a case example the Ontario Advocacy Act, a statute that was surrounded by controversy through its short life. The more general question raised is whether the ideas of government-based advocacy are fundamentally conceptually untenable, or whether the fault lay with the specifics of the act and its implementation. As governments globally cut back on social supports for vulnerable people, the need for advocacy and support are self-evident. This paper explores the broader viability of this one, specific type of response. [source] Articulatory Phonetics in the First-Year Spanish ClassroomMODERN LANGUAGE JOURNAL, Issue 3 2000Deborah L. Arteaga focus of this article is twofold: I reconsider the general question of the role of articulatory phonetics in the second language (L2) classroom and review the phonetics presentation in 10 recent first-year Spanish texts. Pronunciation has been accorded little importance within recent methodological approaches, although their stated goals of communication and intelligibility in fact require the incorporation of explicit phonetics instruction in the language classroom. Considering the first-year Spanish L2 classroom, I propose a phonetics program based on the notion of a learner's dialect (cf. Bergen, 1974). I then measure the phonetics presentation of 10 Spanish textbooks against a learner's dialect, and find that pronunciation sections are in most cases incomplete and inaccurate and provide for no self-monitoring or recycling. This article argues against the current trend reflected in these texts, which relegates pronunciation to the laboratory manual or eliminates it altogether. [source] Flooding and geomorphic impacts in a mountain torrent: Raise Beck, central Lake District, EnglandEARTH SURFACE PROCESSES AND LANDFORMS, Issue 9 2002R. M. Johnson Abstract Raise Beck is a mountain torrent located in the central Lake District fells, northern England (drainage area of 1·27 km2). The torrent shows evidence of several major flood events, the most recent of which was in January 1995. This event caused a major channel avulsion at the fan apex diverting the main flood flow to the south, blocking the A591 trunk road and causing local flooding. The meteorological conditions associated with this event are described using local rainfall records and climatic data. Records show 164 mm of rainfall in the 24 hours preceding the flood. The peak flood discharge is reconstructed using palaeohydrological and rainfall,runoff methods, which provide discharge values of 27,74 m3 s,1, and 4,6 m3 s,1, respectively. The flood transported boulders with b-axes up to 1400 mm. These results raise some important general questions about flood estimation in steep mountain catchments. The geomorphological impact of the event is evaluated by comparing aerial photographs from before and after the flood, along with direct field observations. Over the historical timescale the impact and occurrence of flooding is investigated using lichenometry, long-term rainfall data, and documentary records. Two major historical floods events are identified in the middle of the nineteenth century. The deposits of the recent and historical flood events dominate the sedimentological evidence of flooding at Raise Beck, therefore the catchment is sensitive to high magnitude, low frequency events. Following the 1995 flood much of the lower catchment was channelized using rip-rap bank protection, re-establishing flow north towards Thirlmere. The likely success of this management strategy in containing future floods is considered, based on an analysis of channel capacities. It is concluded that the channelization scheme is only a short-term solution, which would fail to contain the discharge of an event equivalent to the January 1995 flood. Copyright © 2002 John Wiley & Sons, Ltd. [source] Technological Diversity and Jacobs' Externality Hypothesis RevisitedGROWTH AND CHANGE, Issue 2 2005OLOF EJERMO ABSTRACT Recent empirical evidence strongly supports Jacobs's (1969) externality hypothesis that urban diversity provides a more favorable environment for economic development than urban specialization. In order to correctly gauge Jacobs's hypothesis, economic development should be understood as a result of innovations. Furthermore, a relevant diversity measure should take into account the degree of diversity of the inherent classes (e.g. pharmaceuticals are closer to chemicals than to forestry). These ideas are tested using regionally classified Swedish patent application data as a measure of innovativeness. Patent data are also used to reflect technological diversity. The results show that the number of patent applications in Swedish regions is highly and positively dependent on regional technological specialization, quite the opposite of Jacobs's prediction. This paper raises general questions about earlier empirical results. It is concluded that the size of regions is an important factor to consider, since this in itself may affect patenting intensity and technological diversity. [source] Protein folding simulations: From coarse-grained model to all-atom modelIUBMB LIFE, Issue 6 2009Jian Zhang Abstract Protein folding is an important and challenging problem in molecular biology. During the last two decades, molecular dynamics (MD) simulation has proved to be a paramount tool and was widely used to study protein structures, folding kinetics and thermodynamics, and structure,stability,function relationship. It was also used to help engineering and designing new proteins, and to answer even more general questions such as the minimal number of amino acid or the evolution principle of protein families. Nowadays, the MD simulation is still undergoing rapid developments. The first trend is to toward developing new coarse-grained models and studying larger and more complex molecular systems such as protein,protein complex and their assembling process, amyloid related aggregations, and structure and motion of chaperons, motors, channels and virus capsides; the second trend is toward building high resolution models and explore more detailed and accurate pictures of protein folding and the associated processes, such as the coordination bond or disulfide bond involved folding, the polarization, charge transfer and protonate/deprotonate process involved in metal coupled folding, and the ion permeation and its coupling with the kinetics of channels. On these new territories, MD simulations have given many promising results and will continue to offer exciting views. Here, we review several new subjects investigated by using MD simulations as well as the corresponding developments of appropriate protein models. These include but are not limited to the attempt to go beyond the topology based G,-like model and characterize the energetic factors in protein structures and dynamics, the study of the thermodynamics and kinetics of disulfide bond involved protein folding, the modeling of the interactions between chaperonin and the encapsulated protein and the protein folding under this circumstance, the effort to clarify the important yet still elusive folding mechanism of protein BBL, the development of discrete MD and its application in studying the ,,, conformational conversion and oligomer assembling process, and the modeling of metal ion involved protein folding. © 2009 IUBMB IUBMB Life, 61(6): 627,643, 2009 [source] Policy Legitimacy and Institutional Design: Comparative Lessons for theEuropean UnionJCMS: JOURNAL OF COMMON MARKET STUDIES, Issue 1 2000David McKay Research on the democratic deficit in the European Union (EU) tends to focus on general questions of institutional design rather than the link between institutions and specific policy responsibilities. This article argues that, following EMU, a high degree of fiscal centralization is not tenable given theabsence of EU-wide citizen support for a greatly enhanced central role and European political parties operating in a genuine European legislature. Given this, it is appropriate to examine fiscal relations in existing federations to discover which, if any, approximates to the likely post-EMU pattern in the EU. The experience of five federations , Australia, Canada the US, Germany and Switzerland suggests that most can be learnt from the Swiss model which is characterized by a high degree of vertical fiscal autonomy, and state (cantonal) interpenetration of national decision-making. The article concludes that, while Switzerland cannot serve as a model for the EU, the Swiss experience does show that a modern industrial state can successfully operate in the context of a high degree of fiscal decentralization. [source] From Village Artisans to Industrial Clusters: Agendas and Policy Gaps in Indian Rural IndustrializationJOURNAL OF AGRARIAN CHANGE, Issue 1 2001Ashwani Saith This paper offers a broad strategic assessment of the experience of rural industrialization in India. It does so from a policy perspective with the aim eventually of highlighting speci?c outstanding policy issues. Rural and small-scale industrialization (RSSI) has held a special place in Indian development thinking and policy formulation from the outset. This privileged position, however, does not derive from a universal consensus with regard to the rationale and policy framework applicable to this sub-sector.However, such has been the symbolic power and populist appeal of RSSI that it has retained its special status within diverse strategic and ideological frameworks. But how has the sub-sector performed? Is the infant industry still in need of paternalistic protection at the age of ?fty? Are there any credible indications of a strategic break with longstanding policy frameworks inherited from the past? Can any crucial policy gaps be identi ?ed? How well does rural small-scale industry satisfy the extensive developmental claims made by its proponents? These are the general questions addressed. [source] Eyewitness testimony and perceived credibility of youth with mild intellectual disabilityJOURNAL OF INTELLECTUAL DISABILITY RESEARCH, Issue 7 2004M. Peled Abstract Background Individuals with intellectual disability (ID) are more vulnerable to abuse compared to individuals without disabilities yet have limited access to the legal system. This study examined perceived credibility of youth with mild intellectual disability (MID) who provide courtroom testimony. Method Participants, 187 undergraduates, were asked general questions about credibility. They also read eyewitness testimony and answered questions about a particular witness's credibility. Half the participants were informed that the youth has MID [chronological age (CA) 15 years, mental age (MA) 10 years] and the others were informed that the youth is a typically developing 10-year-old. Results When participants were asked general questions about credibility they rated 15-year-olds with MID (MA 10 years) as less credible than typically developing 15-year-olds and as less credible than typically developing 10-year-olds. However, when participants read eyewitness testimony and answered questions about a particular witness's credibility, no statistically significant differences were found between participants who were informed that the witness was a 15-year-old with MID (MA 10 years) and those who were informed that the witness was a typically developing 10-year-old. Conclusions The present study provided a preliminary investigation of perceived credibility of witnesses with MID and suggests directions for future research in this area. [source] Surface enhanced laser desorption ionization spectrometry reveals biomarkers for drug treatment but not dosePROTEINS: STRUCTURE, FUNCTION AND BIOINFORMATICS, Issue 7 2006Cloud P. Paweletz Dr. Abstract Here we describe the use of SELDI-MS to detect dose-dependent peptide changes in plasma from mice treated with vehicle or rosiglitazone at one of two doses (10 and 30,mg/kg). SELDI features differentiating spectra from the three conditions were found and used to train classifiers. Samples treated with vehicle could be reliably distinguished from samples treated with either dose, but samples treated with the different doses could not be reliably distinguished from one another. We conclude that while SELDI-TOF mass spectra can be used to distinguish treated from untreated samples, the reproducibility and information content of SELDI-TOF are currently not sufficient as a pharmacodynamic readout to distinguish between mice treated with 10 or 30,mg/kg of rosiglitazone. This raises more general questions about whether SELDI's sensitivity is sufficient for detecting dose-dependent changes in plasma. [source] Sexual Function in F-111 Maintenance Workers: The Study of Health Outcomes in Aircraft Maintenance PersonnelTHE JOURNAL OF SEXUAL MEDICINE, Issue 6 2009Anthony Brown MPH ABSTRACT Introduction., In Australia, four formal F-111 fuel tank deseal/reseal (DSRS) repair programs were implemented over more than two decades, each involving different processes and using a range of hazardous substances. However, health concerns were raised by a number of workers. The "Study of Health Outcomes in Aircraft Maintenance Personnel" was commissioned by the Australian Department of Defence to investigate potential adverse health outcomes as a result of being involved in the deseal/reseal processes. Aim., To compare measures of sexual function in F-111 aircraft fuel tank DSRS maintenance workers, against two appropriate comparison groups. Methods., Exposed and comparison participants completed a postal questionnaire which included general questions of health and health behavior, and two specific questions on sexual functioning. They also completed the International Index of Erectile Function (IIEF) questionnaire. Logistic regression was used to explore exposure status and outcome while adjusting for potential confounders. Main Outcome Measures., The three outcomes of interest for this study were the proportion of participants with erectile dysfunction (ED) according to the IIEF, the proportion with self-reported loss of interest in sex, and the proportion with self-reported problems with sexual functioning. Results., Compared with each of the comparison groups, a larger proportion of the exposed group reported sexual problems and were classified as having ED according to the IIEF. In logistic regression, the odds of all three outcomes were higher for exposed participants relative to each comparison group and after adjustment for potentially confounding variables including anxiety and depression. Conclusions., There was a consistent problem with sexual functioning in the exposed group that is not explained by anxiety and depression, and it appears related to DSRS activities. Brown A, Gibson R, Tavener M, Guest M, D'Este C, Byles J, Attia J, Horsley K, Harrex W, and Ross J. Sexual function in F-111 maintenance workers: The study of health outcomes in aircraft maintenance personnel. J Sex Med 2009;6:1569,1578. [source] Homework Assignments in Cognitive and Behavioral Therapy: A Meta-AnalysisCLINICAL PSYCHOLOGY: SCIENCE AND PRACTICE, Issue 2 2000Nikolaos Kazantzis This meta-analysis (27 studies, N= 1702) examined (a) the effects of homework assignments on treatment outcome and (b) the relationship between homework compliance and therapy outcome. Results of the primary meta-analyses indicated a weighted mean effect size (r) of .36 for homework effects and .22 for homework compliance. A moderator analysis (chosen on a priori grounds) was also conducted by partitioning the sample of effect size estimations first according to the sample problem type, according to the type of homework activity administered, and according to the source and time of homework compliance assessment. We hope that the focus of future research will now be diverted from general questions of the benefit of including homework in therapy, to more specific questions regarding the relative effectiveness of different types of homework assignments for different client problems. [source] | |||||||||||||||||||