2,163 research outputs found

    The Importance of Situational Information for Abstract Concepts

    Get PDF
    Very little is known about how people understand abstract concepts. While a good deal is known about concrete concepts such as chair or apple, concepts that are perceptually elusive, such as idea or freedom, remain a challenge for theories of conceptual knowledge. Past research has explained how these concepts are understood by focusing on how they differ from concrete concepts, suggesting they are primarily understood by their relations to other words. However, recent research recognizes that this is not a comprehensive view of their representation, and that it excludes much of peopleā€™s everyday experience. Accordingly, current theories of grounded cognition propose that real-world situational knowledge plays a key role in how people understand abstract concepts. Experiment 1 supports this idea by showing that short scenario descriptions prime abstract concepts in the absence of any word association. In Experiment 2, I grouped concepts according to whether they relate multiple aspects of a situation, or refer to internal states. The former shows significant priming but the latter does not. These experiments demonstrate the importance of situational knowledge for the representation and processing of abstract concepts, including how the relationship between situations and abstract concepts is important to delineating among them

    Swimming capabilities of stoats and the threat to inshore sanctuaries

    Get PDF
    Stoats (Mustela erminea) are small carnivorous mammals which were introduced into New Zealand in the late 19th century, and have now become widespread invasive pests. Stoats have long been known to be capable of swimming to islands 1-1.5 km offshore. Islands further out have usually been assumed to be safe from invasion, therefore routine stoat monitoring on them has been considered un-necessary. Recent incursions, including a stoat found on Rangitoto Island (3 km offshore) in 2010, and another which was deduced to have reached Kapiti (5 km offshore) in 2009, along with distribution modelling and genetic studies, strongly support the proposition that stoats can swim much further than 1.5 km. Acceptance of this hypothesis depends on estimating the probability that such small animals could indeed swim so far unaided. This paper reports the results of a project designed to assist this debate by recording the paddling action, speed and minimal endurance of nine stoats observed (once each) swimming against an endless current in a flume at the Aquatic Research Centre, University of Waikato. Four of the five males and two of the four females could hold a position for at least five minutes against the maximum current available, averaging 1.36 Ā± 0.336 km/h. In steady swimming against a current of c. 1 km/hr, they all used a rapid quadripedal paddling action (averaging 250 strokes/min, stronger with the spread forepaws). Four of the nine swam strongly for >1 h, including one female who covered 1.8 km in nearly 2 h non- stop. Results from such artificial conditions cannot be conclusive, but support suggestions that wild stoats could indeed swim much further than 1.5 km, hence we conclude that the ā€œrisk zoneā€ for stoat reinvasions of inshore islands has been seriously under-estimated

    The Host Galaxy of GRB 060505: Host ISM Properties

    Full text link
    We investigate the ISM environment of GRB 060505. Using optical emission-line diagnostic ratios, we compare the ISM properties of the GRB 060505 host region with the hosts of unambiguous long- and short-duration GRBs. We show that the metallicity, ionization state, and star formation rate of the GRB 060505 environment are more consistent with short-duration GRBs than with long-duration GRBs. We compare the metallicity and star formation rates of the GRB 060505 region with four other star-forming regions within the GRB 060505 host galaxy. We find no significant change in metallicity or star formation rate between the GRB 060505 region and the other four host regions. Our results are consistent with a compact-object-merger progenitor for GRB 060505.Comment: 7 pages, two figures; accepted for publication in ApJ

    Are work-integrated learning (WIL) students better equipped psychologically for work post-graduation than their non-work-integrated learning peers? Some initial findings from a UK university

    Get PDF
    Work-integrated learning (WIL) provides an opportunity to develop the skills, knowledge, competence, and experience, which increase employability and lead to more satisfying careers. Research indicates that WIL results in improved academic- and occupationally-related outcomes. However, there is a paucity of quantitative research examining the psychological impact of WIL. The study aimed to determine whether students who pursue WIL in the UK, differ significantly in terms of self-concept, self-efficacy, hope, study skills, motivation, and procrastination than students who have not participated in WIL. The methodology used a cross-sectional analysis of a large sample (n=716) of undergraduate students at the University of Huddersfield, UK. Results showed significant differences predominantly centred upon measures which pertain to studentsā€™ confidence in setting and attaining goals. The increased hope and confidence in goal attainment suggest that gaining work experience perhaps enhances the ability to set and achieve goals once in the work force. (Asia-Pacific Journal of Cooperative Education, 2013, 14(2), 117-125) Keywords: Employability; Psychological factors; Work-integrated learning; Placement; Confidence; Self estee

    Disparate distributions of chemolithotrophs containing form IA or IC large subunit genes for ribulose-1,5-bisphosphate carboxylase/oxygenase in intertidal marine and littoral lake sediments

    Get PDF
    The distributions of bacterial form IA and form IC ribulose-1,5- bisphosphate carboxylase/oxygenase (RuBisCO) were investigated using Lowes Cove intertidal mudflat and Damariscotta Lake littoral sediments by PCR amplification of 492-495 bp fragments of the large subunit RuBisCO gene, cbbL. Genomic extracts for amplification were obtained from lake surface (upper 2 mm), mudflat surface (upper 2 mm), subsurface (5-7 cm), and soft-shell clam (Mya arenaria) burrow-wall sediments, as well as from a sulfide-oxidizing mat. Phylogenetic analyses of cbbL clone libraries revealed that Lowes Cove sediments were dominated by form IA cbbL-containing sequences most closely related to cbbL genes of sulfur-oxidizing bacteria or sulfide-oxidizing mats. In contrast, Damariscotta Lake cbbL clones contained primarily form IC cbbL sequences, which typify aerobic CO- and hydrogen-oxidizing facultative chemolithotrophs. Statistical analyses supported clear differentiation of intertidal and lake chemolithotroph communities, and provided evidence for some differentiation among intertidal communities. amova and libshuff analyses of Lowes Cove libraries suggested that M. arenaria burrow-wall sediments did not harbour distinct communities compared with surface and subsurface sediments, but that surface and subsurface libraries displayed moderate differences. The results collectively support a conceptual model in which the relative distribution of form IA- and IC-containing bacterial chemolithotrophs depends on sulfide availability, which could reflect the role of sulfate reduction in sediment organic matter metabolism, or the presence of geothermal sulfide sources. Ā© 2007 Federation of European Microbiological Societies

    From unskilled to employable: using a qualitative examination of the ā€˜Placement Timeline Research Methodā€™ to explore student professional and personal development whilst on multiple WIL experiences.

    Get PDF
    This paper explores the method and findings of a qualitative examination into multiple work integrated learning (MWIL) placements. The research consisted of 14 reflective interviews with students from across discipline areas who had undertaken a series of work placements. The range of MWIL experiences included professional placements in nursing and youth work, yearlong placements in accountancy and engineering, self-directed WIL experiences in arts, informal and part-time placements. The aim of this study was to explore the transitions that took place throughout multiple placements that helped the student to become a work ready and an effective professional. A research method, 'Placement Timeline' was developed. This allows a reflective structure for the researcher to tease out skill development and work readiness. All interviews were transcribed and coded using NVivo qualitative software. The paper will discuss selected findings from the research. These provide insights into how multiple WIL experiences may benefit students in their preparation for work. In effect it was as if the work readiness and skills relating to an uncertain and ever changing job market skills were fast tracked over MWIL.This research highlights the key transitional features of MWIL

    ā€œThat is Not Behavior Consistent with a Rape Victimā€: The Effects of Officer Displays of Doubt on Sexual Assault Case Processing and Victim Participation

    Get PDF
    Despite the prevalence and severity of sexual violence, case attrition has been identified as a significant issue. Of the cases that are reported to police, only a small portion result in arrest, prosecution, or conviction. Research has revealed that much of this attrition occurs early in the process and that a number of theoretically supported legal (e.g., physical evidence, victim participation) and extralegal (e.g., demographics, victim credibility) factors influence how and whether a case progresses through the criminal justice system. However, few researchers have directly examined the impact of officer doubt on case processing. Whereas legal and extralegal factors represent case characteristics, doubt represents officer cognition about these characteristics. These perceptions can affect how victims are treated, how police investigate the case, and ultimately, the caseā€™s progression through the system. A random sample of sexual assault reports from one police department in a medium-sized jurisdiction in the western U.S. was drawn to examine the expression of officer doubt, as well as its impact on victim participation, arrest, and referral for prosecution while controlling for relevant legal and extralegal factors. The findings suggest that officer doubt is an important consideration in sexual assault case processing, independent of other legal and extralegal factors, and that it significantly impacts the likelihood of arrest and referral for prosecution. Consistent with previous research, police decision-making was also impacted by certain legal factors. Victim participation was not directly affected by officer doubt but it was predicted by extralegal factors. Implications for future sexual assault research and practitioner training are discussed

    Symptom management care pathway adaptation process and specific adaptation decisions

    Get PDF
    BACKGROUND: There is substantial heterogeneity in symptom management provided to pediatric patients with cancer. The primary objective was to describe the adaptation process and specific adaptation decisions related to symptom management care pathways based on clinical practice guidelines. The secondary objective evaluated if institutional factors were associated with adaptation decisions. METHODS: Fourteen previously developed symptom management care pathway templates were reviewed by an institutional adaptation team composed of two clinicians at each of 10 institutions. They worked through each statement for all care pathway templates sequentially. The institutional adaptation team made the decision to adopt, adapt or reject each statement, resulting in institution-specific symptom management care pathway drafts. Institutional adaption teams distributed the 14 care pathway drafts to their respective teams; their feedback led to care pathway modifications. RESULTS: Initial care pathway adaptation decision making was completed over a median of 4.2 (interquartile range 2.0-5.3) weeks per institution. Across all institutions and among 1350 statements, 551 (40.8%) were adopted, 657 (48.7%) were adapted, 86 (6.4%) were rejected and 56 (4.1%) were no longer applicable because of a previous decision. Most commonly, the reason for rejection was not agreeing with the statement (70/86, 81.4%). Institutional-level factors were not significantly associated with statement rejection. CONCLUSIONS: Acceptability of the 14 care pathways was evident by most statements being adopted or adapted. The adaptation process was accomplished over a relatively short timeframe. Future work should focus on evaluation of care pathway compliance and determination of the impact of care pathway-consistent care on patient outcomes. TRIAL REGISTRATION: clinicaltrials.gov, NCT04614662. Registered 04/11/2020, https://clinicaltrials.gov/ct2/show/NCT04614662?term=NCT04614662&draw=2&rank=1

    Effects of CO\u3csub\u3e2\u3c/sub\u3e on Growth Rate, C:N:P, and Fatty Acid Composition of Seven Marine Phytoplankton Species

    Get PDF
    Carbon dioxide (CO2) is the primary substrate for photosynthesis by the phytoplankton that form the base of the marine food web and mediate biogeochemical cycling of C and nutrient elements. Specific growth rate and elemental composition (C:N:P) were characterized for 7 cosmopolitan coastal and oceanic phytoplankton species (5 diatoms and 2 chlorophytes) using low density, nutrient-replete, semi-continuous culture experiments in which CO2 was manipulated to 4 levels ranging from post-bloom/glacial maxima (ppm) to geological maxima levels (\u3e2900 ppm). Specific growth rates at high CO2 were from 19 to 60% higher than in low CO2 treatments in 4 species and 44% lower in 1 species; there was no significant change in 2 species. Higher CO2 availability also resulted in elevated C:P and N:P molar ratios in Thalassiosira pseudonana (~60 to 90% higher), lower C:P and N:P molar ratios in 3 species (~20 to 50% lower), and no change in 3 species. Carbonate system-driven changes in growth rate did not necessarily result in changes in elemental composition, or vice versa. In a subset of 4 species for which fatty acid composition was examined, elevated CO2 did not affect the contribution of polyunsaturated fatty acids to total fatty acids significantly. These species show relatively little sensitivity between present day CO2 and predicted ocean acidification scenarios (year 2100). The results, however, demonstrate that CO2 availability at environmentally and geologically relevant scales can result in large changes in phytoplankton physiology, with potentially large feedbacks to ocean biogeochemical cycles and ecosystem structure

    Insomnia, Psychiatric Disorders and Suicidal Ideation in a National Representative Sample of Active Canadian Forces Members

    Get PDF
    Background Past research on the association between insomnia and suicidal ideation (SI) has produced mixed findings. The current study explored the relationship between insomnia, SI, and past-year mental health status among a large Canadian Forces (CF) sample. Method Data was obtained from the 2013 Canadian Forces Mental Health Survey (CFMHS), and included a large representative sample of Canadian Regular Forces personnel (N = 6700). A series of univariate logistic regressions were conducted to test individual associations between past-year mental health status, insomnia, and potential confounds and SI. Mental health status included three groups: 0, 1, or two or more probable diagnoses of posttraumatic stress disorder (PTSD), major depressive disorder (MDD), generalized anxiety disorder (GAD), panic disorder (PD) and alcohol abuse/dependence. Stepwise multivariate logistic regression was used to assess the relationship between insomnia and SI with mental health status as a moderator. Results 40.8% of respondents reported experiencing insomnia. Both insomnia and number of mental health conditions incrementally increased the risk of SI. However, past-year mental health status was a significant moderator of this relationship, such that for CF personnel with either no (AOR = 1.61, 1.37ā€“1.89) or only one past-year mental health condition (AOR = 1.39, 1.12ā€“1.73), an incremental increase in insomnia was associated with an increased likelihood of SI. However, in personnel with two or more past-year mental health disorders, insomnia was no longer significantly associated with SI (AOR = 1.04, 0.81ā€“1.33). Conclusions Insomnia significantly increased the odds of SI, but only among individuals with no or one mental health condition. Findings highlight the importance of assessing insomnia among CF members in order to further suicide prevention efforts
    • ā€¦
    corecore