Prevalence of taurodontism: meta-analysis in recent humans and evolutionary perspectives

HOMO ◽  
2021 ◽  
Author(s):  
Pierre-Hadrien Decaup ◽  
Christine Couture ◽  
Mathieu Colin ◽  
Elsa Garot
2018 ◽  
Vol 36 (9) ◽  
pp. 2652-2676
Author(s):  
Dongju Li ◽  
Cong Shu ◽  
Xu Chen

Although several studies support evolutionary perspectives on sex differences in romantic attachment, these sex differences in East Asia remain controversial. To estimate the effect size of sex differences in romantic attachment among Chinese adults, a meta-analysis of sex differences was conducted in the present study. This meta-analysis was based on 111 samples using the Chinese version of the Experiences in Close Relationships Scale and its revised version. The findings suggest that the effect size of sex differences in romantic attachment among Chinese adults is relatively small. Overall, females demonstrated higher anxiety and avoidance than males, with substantial between-study heterogeneity. Sex differences were largest in community samples, with higher avoidance and lower anxiety in males. There were smaller sex differences in college student samples, with higher anxiety and avoidance in females. The degree of sex differences also varied across geographical regions, with high-stress and high-fertility reproductive environments showing smaller sex differences in general and larger sex differences in extreme conditions. Sex differences in anxiety increased linearly with age, whereas those in avoidance remained unchanged. The results support evolutionary perspectives of sex differences in romantic attachment, which assume that the average sex differences in romantic attachment styles should be relatively small in most populations, and many possible factors might moderate such differences. The heterogeneity and limitations of the current findings and directions for future research on sex differences in romantic attachment are discussed.


2021 ◽  
Author(s):  
Yali Wei ◽  
Yan Meng ◽  
Na Li ◽  
Qian Wang ◽  
Liyong Chen

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.


2013 ◽  
Vol 18 (1) ◽  
pp. 1-18 ◽  
Author(s):  
Robert J. Barth

Abstract Scientific findings have indicated that psychological and social factors are the driving forces behind most chronic benign pain presentations, especially in a claim context, and are relevant to at least three of the AMA Guides publications: AMA Guides to Evaluation of Disease and Injury Causation, AMA Guides to Work Ability and Return to Work, and AMA Guides to the Evaluation of Permanent Impairment. The author reviews and summarizes studies that have identified the dominant role of financial, psychological, and other non–general medicine factors in patients who report low back pain. For example, one meta-analysis found that compensation results in an increase in pain perception and a reduction in the ability to benefit from medical and psychological treatment. Other studies have found a correlation between the level of compensation and health outcomes (greater compensation is associated with worse outcomes), and legal systems that discourage compensation for pain produce better health outcomes. One study found that, among persons with carpal tunnel syndrome, claimants had worse outcomes than nonclaimants despite receiving more treatment; another examined the problematic relationship between complex regional pain syndrome (CRPS) and compensation and found that cases of CRPS are dominated by legal claims, a disparity that highlights the dominant role of compensation. Workers’ compensation claimants are almost never evaluated for personality disorders or mental illness. The article concludes with recommendations that evaluators can consider in individual cases.


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