Background: The current study attempted to replicate the original findings regarding the effects of power posing on testosterone and cortisol levels, risk-taking behavior, and perceived power. We further extended the investigation by testing the effect of power posing on estradiol and progesterone levels.
Methods: A sample of 92 young adults (30 males; 32 females taking oral contraceptives; and 30 females not taking oral contraceptives who were in their midluteal phase) were randomly assigned to high-power-pose or low-power-pose conditions and asked about their feelings of power. They completed a risk-taking task, and their neuroendocrine levels were measured both at baseline and following the power manipulation.
Results: Power posing was not found to replicate the original results regarding effects on testosterone levels or feelings of power; however, our findings partially supported the original results regarding effects on cortisol levels and risk-taking. Among high-power posers, a decrease in cortisol levels was associated with risk tolerance. Power posing was not found to influence progesterone levels. However, among females taking oral contraceptives, high-power posing increased estradiol levels.
Conclusions: These preliminary findings suggest that estradiol is influenced by short-term exposure to social cues under specific hormonal profiles.
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http://dx.doi.org/10.1186/s40359-024-02194-7 | DOI Listing |
Anal Chem
January 2025
Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, China.
Detection of trace gases, such as radioactive carbon dioxide, clumped isotopes, and reactive radicals, is of great interest and poses significant challenges in various fields. Achieving both high selectivity and high sensitivity is essential in this context. We present a highly selective molecular spectroscopy method based on comb-locked, mid-infrared, cavity-enhanced, two-photon absorption.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Physics and HK Institute of Quantum Science & Technology, The University of Hong Kong, Hong Kong, Hong Kong.
Quantum entanglement uncovers the essential principles of quantum matter, yet determining its structure in realistic many-body systems poses significant challenges. Here, we employ a protocol, dubbed entanglement microscopy, to reveal the multipartite entanglement encoded in the full reduced density matrix of the microscopic subregion in spin and fermionic many-body systems. We exemplify our method by studying the phase diagram near quantum critical points (QCP) in 2 spatial dimensions: the transverse field Ising model and a Gross-Neveu-Yukawa transition of Dirac fermions.
View Article and Find Full Text PDFACS Nano
January 2025
State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of the Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China.
Chronic kidney disease (CKD) has a high incidence rate, and if not detected and treated in a timely manner, it poses a risk of progressing to renal failure and even uremia. Performing home monitoring of urinary protein, which is a recognized indicator of CKD, is considered an effective means of achieving early warning for CKD. Although the existing urinary protein test strips for home self-testing are cost-effective and simple, they suffer from drawbacks such as susceptibility to contamination and lack of quantitative detection capability.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China.
Anion dimerization poses a significant challenge for the application of Li-rich cathode materials (LCMs) in high-energy-density Li-ion batteries because of its deleterious effects, including rapid capacity and voltage decay, sluggish reaction kinetics, and large voltage hysteresis. Herein, we propose a metal-ligand spin-lock strategy to inhibit anion dimerization, which involves introducing an Fe-Ni couple having antiferromagnetic superexchange interaction into the LCM to lock the spin orientations of the unpaired electrons in the anions in the same direction. As proof of concept, we applied this strategy to intralayer disordered LiTiS (ID-LTS) to inhibit S-S dimerization.
View Article and Find Full Text PDFTalanta
December 2024
Engineering Research Center of Smart Microsensors and Microsystems, Ministry of Education, College of Electronics and Information, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, China; China-Israel Polypeptide Device and Application Technology Joint Research Center, Hangzhou, 310027, China. Electronic address:
Nitrogen dioxide (NO) is an important contaminant that poses a severe threat to environmental sustainability. Traditional inorganic NO gas detectors are generally used under harsh operating conditions and employ environmentally unfriendly resources, thus preventing widespread practical applications. Herein, self-assembled peptide microtubes (SPMTs) are combined with SnO nanoparticles (NPs) to develop a bioinspired NO gas sensor.
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