Plant diversity aboveground can exert top‐down pressure on herbivores by attracting predatory insects, while organic soil amendments rich in beneficial microbes can limit herbivores from the ...bottom‐up by enhancing plant defensive chemistry. Aboveground and belowground forces always operate simultaneously to shape herbivore pressure, but understanding how they interact is a longstanding and persistent challenge.
Here, we examine how organic composts mediate the effects of plant diversity across trophic levels, using zucchini plants (Cucurbita pepo) as a study system. Over two field seasons, we manipulated vermicompost treatments in 18 experiments in school gardens that varied in surrounding plant and floral resource diversity and measured responses of insect herbivores and their natural enemies.
Vermicompost strengthened a positive relationship between flower richness and foliar‐feeding omnivores, suggesting that robust reservoirs of omnivores at flower‐rich sites mounted stronger responses to compost‐treated host plants.
Predators increased with flower richness, but were not affected by vermicompost.
Net outcomes of vermicompost and plant diversity were neutral for herbivores.
Synthesis and applications. Altogether, our results reveal that bottom‐up factors protecting plants are modified by their environmental context, and may more effectively attract natural enemies in landscapes with diverse floral resources. Therefore, we recommend augmentation of biodiversity aboveground (i.e. floral resources) together with biodiversity belowground (organic soil amendments) to strengthen crop protection.
Altogether, our results reveal that bottom‐up factors protecting plants are modified by their environmental context, and may more effectively attract natural enemies in landscapes with diverse floral resources. Therefore, we recommend augmentation of biodiversity aboveground (i.e. floral resources) together with biodiversity belowground (organic soil amendments) to strengthen crop protection.
The current meta-analysis examines the previous research on the utility of the Social Communication Questionnaire as a screening instrument for autism spectrum disorder. Previously published reports ...have highlighted the inconsistencies between Social Communication Questionnaire-screening results and formal autism spectrum disorder diagnoses. The variations in accuracy resulted in some researchers questioning the validity of the Social Communication Questionnaire. This study systematically examined the accuracy of the Social Communication Questionnaire as a function of the methodological decisions made by researchers screening for autism spectrum disorder over the last 15 years. Findings from this study suggest that the Social Communication Questionnaire is an acceptable screening instrument for autism spectrum disorder (area under the curve = 0.885). Variations in methodological decisions, however, greatly influenced the accuracy of the Social Communication Questionnaire in screening for autism spectrum disorder. Of these methodological variations, using the Current instead of the Lifetime version of the Social Communication Questionnaire resulted in the largest detrimental effect (d = −3.898), followed by using the Social Communication Questionnaire with individuals younger than 4 years of age (d = −2.924) and relying upon convenience samples (d = −4.828 for clinical samples, −2.734 for convenience samples, and −1.422 for community samples). Directions for future research and implications for using the Social Communication Questionnaire to screen for autism spectrum disorder are discussed.
Background
Several methods have been proposed to measure cerebrovascular autoregulation (CA) in traumatic brain injury (TBI), but the lack of a gold standard and the absence of prospective clinical ...data on risks, impact on care and outcomes of implementation of CA-guided management lead to uncertainty.
Aim
To formulate statements using a Delphi consensus approach employing a group of expert clinicians, that reflect current knowledge of CA, aspects that can be implemented in TBI management and CA research priorities.
Methods
A group of 25 international academic experts with clinical expertise in the management of adult severe TBI patients participated in this consensus process. Seventy-seven statements and multiple-choice questions were submitted to the group in two online surveys, followed by a face-to-face meeting and a third online survey. Participants received feedback on average scores and the rationale for resubmission or rephrasing of statements. Consensus on a statement was defined as agreement of more than 75% of participants.
Results
Consensus amongst participants was achieved on the importance of CA status in adult severe TBI pathophysiology, the dynamic non-binary nature of CA impairment, its association with outcome and the inadvisability of employing universal and absolute cerebral perfusion pressure targets. Consensus could not be reached on the accuracy, reliability and validation of any current CA assessment method. There was also no consensus on how to implement CA information in clinical management protocols, reflecting insufficient clinical evidence.
Conclusion
The Delphi process resulted in 25 consensus statements addressing the pathophysiology of impaired CA, and its impact on cerebral perfusion pressure targets and outcome. A research agenda was proposed emphasizing the need for better validated CA assessment methods as well as the focused investigation of the application of CA-guided management in clinical care using prospective safety, feasibility and efficacy studies.
The object of this study was to determine the effect of EAS (Equine-Assisted Services) on arthritis conditions, as measured by the sTnT (Skeletal troponin) and COMP (cartilage oligomeric matrix ...proteins) biomarkers, compared to an exercise attention control intervention.
This was a secondary analysis of a randomized clinical trial comparing equine-assisted therapy to exercise education attention-control on cartilage and skeletal biomarkers in adults with arthritis. Twenty-one adults (Mage = 64 years) with arthritis who attended rheumatology clinics in the midwestern United States participated.
No changes were found in sTnT from baseline to week six within either intervention nor were there differences in changes between the two groups (p = 0.91). COMP increased from baseline to week six for both conditions, suggesting increased deterioration of cartilage and joints. Although the attention-control condition demonstrated larger increases in cartilage oligomeric matrix proteins level, compared to the EAS condition, these differences were not statistically (p = 0.58) or clinically significant (i.e., trivial effect, d = −0.16). When 3 outliers were removed, the differences in changes between EAT and attention-control group could be arguably of clinical significance (d = - 0.33), suggesting that the attention-control group demonstrated larger increases in levels of COMP than those in the EAS condition, though this difference was not statistically significant (p = 0.28).
Although equine-assisted therapy may reduce pain and improve quality of life for adults with arthritis, findings here are not fully corroborated with biomarkers.
•EAS did not change skeletal troponin T after 6 weeks.•COMP increased from baseline to week six for both groups but not significantly.•EAS is tolerable yet findings here are not fully corroborated with biomarkers.
In this article, we trace the syncretic origins and development of the new religious movement centered on the Mexican folk saint of death, Santa Muerte. We explore how she was born of the syncretic ...association of the Spanish Catholic Grim Reapress and Pre-Columbian Indigenous thanatologies in the colonial era. Through further religious bricolage in the post-colony, we describe how as the new religious movement rapidly expanded it integrated elements of other religious traditions, namely Afro-Cuban Santeria and Palo Mayombe, New Age beliefs and practices, and even Wicca. In contrast to much of the Eurocentric scholarship on Santa Muerte, we posit that both the Skeleton Saint’s origins and contemporary devotional framework cannot be comprehended without considering the significant influence of Indigenous death deities who formed part of holistic ontologies that starkly contrasted with the dualistic absolutism of European Catholicism in which life and death were viewed as stark polarities. We also demonstrate how across time the liminal power of death as a supernatural female figure has proved especially appealing to marginalized socioeconomic groups.
•Parent versions of the SCARED exhibit excellent internal consistency.•Child versions of the SCARED exhibit excellent internal consistency.•Child versions of the SCARED exhibit moderate to large ...test-retest reliabilities.•Parent and child responses to the SCARED exhibit moderate to large correlations.
The Screen for Child Anxiety Related Emotional Disorders (SCARED) is a commonly used instrument that evaluates anxiety symptoms in children and adolescents.
This meta-analysis examined the psychometric properties of the SCARED instrument, including total instrument and subscale internal reliabilities for the parent and child versions, test-retest reliabilities, and the extent to which responses from the parent version correspond with responses from the child version. Databases reviewed included ERIC, PubMed, PsycINFO, ProQuest Dissertations and Theses, and Google Scholar
Responses to the SCARED instrument for children and parents using a mixture of the 38-, 41-, 66-, 69-, and 71-item versions of the SCARED were analyzed for 65 studies conducted between 1997 and 2017. The results from the random-effects models suggested homogeneity of variance for all the effects examined. The weighted averages of the psychometric properties indicated the parent and child versions of the SCARED have exhibited excellent internal consistencies on the total score, panic disorder, generalized anxiety, separation anxiety, social anxiety, post-traumatic stress, and animal phobia subscales. Furthermore, the SCARED demonstrated moderate to large test-retest reliabilities and moderate to large parent-child agreement rates. The school avoidance, obsessive-compulsive disorder, blood phobia, and situational phobia subscales did not demonstrate reliabilities considered appropriate for a screening instrument.
Publications that could not be translated to English or could not be retrieved due to not being published or archived were not included in the analysis.
Overall the child and parent versions of the SCARED have robust psychometric properties and perform consistently well in community and clinical settings across various countries. The SCARED is clinically relevant as mental health providers and researchers can use it during diagnostic procedures and to monitor intervention effectiveness.
R. Andrew Chesnut offers a fascinating portrayal of Santa Muerte, a skeleton saint whose cult has attracted millions of devotees in the past eight years. As a personification of death, the Grim ...Reapress has become one of the most popular and powerful saints on both the Mexican and American religious landscapes. Although condemned as satanic by both Catholic and Protestant churches, this folk saint's supernatural powers appeal to millions of Mexican citizens and Central American and Mexican immigrants.
Prior literature has suggested that teachers who are confident in their abilities to teach, assess, and manage classroom behavior may be more likely to engage in practices that lead to supportive and ...secure relationships with students. The current study investigated the trajectories of teacher-student relationships, examining the extent that teacher self-efficacy beliefs predicted ratings of conflict and closeness for 885 students from second to sixth grade. The trends of teacher-student closeness and conflict were modeled using a parallel curve of factors approach, controlling for student demographics and teacher-student racial and gender alignment prior to examining the extent that teacher self-efficacy beliefs influenced closeness and conflict across grades. Results from the parallel trajectories suggested that teacher-student conflict was stable from second to sixth grade, whereas teacher-student closeness demonstrated a declining curvilinear trend. The relationship between teacher-student conflict and closeness suggests that students with relatively high levels of conflict in second grade were likely to exhibit sharper declines in closeness over time. Across grades, teachers rated closer and less conflictual relationships with females but after controlling for gender and race (β = 0.083–0.328 for closeness; β = −0.118 to −0.238 for conflict), teacher-student racial and gender alignment associations with teacher-student relationship quality were less consistent. Teachers who reported higher self-efficacy beliefs were more likely to report higher ratings of closeness and lower ratings of conflict with students across all grades (β = 0.195–0.280 for closeness; β = −0.053 to −0.097 for conflict). These findings contribute to the literature regarding the role of teacher self-efficacy in teacher-student relationships. We discuss how teacher self-efficacy beliefs can be developed and leveraged to improve relationship quality in the classroom from a social cognitive perspective.
•Parallel process growth curve models were implemented.•Conflict is stable across grades, whereas closeness has a negative curvilinear trajectory.•Teacher self-efficacy beliefs promote closeness and reduce conflict.•Teachers report closer and less conflictual relationships with females.•Teacher-student racial and gender alignment findings were inconsistent.
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