The phenology of spring leaf unfolding plays a key role in the structure and functioning of ecosystems. The classical concept of heat requirement (growing degree days) for leaf unfolding was developed hundreds of years ago, but this model does not include the recently reported greater importance of daytime than night-time temperature. A manipulative experiment on daytime vs night-time warming with saplings of three species of temperate deciduous trees was conducted and a Bayesian method was applied to explore the different effects of daytime and night-time temperatures on spring phenology. We found that both daytime and night-time warming significantly advanced leaf unfolding, but the sensitivities to increased daytime and night-time temperatures differed significantly. Trees were most sensitive to daytime warming (7.4 ± 0.9, 4.8 ± 0.3 and 4.8 ± 0.2 d advancement per degree Celsius warming (d °C ) for birch, oak and beech, respectively) and least sensitive to night-time warming (5.5 ± 0.9, 3.3 ± 0.3 and 2.1 ± 0.9 d °C ). Interestingly, a Bayesian analysis found that the impact of daytime temperature on leaf unfolding was approximately three times higher than that of night-time temperatures. Night-time global temperature is increasing faster than daytime temperature, so model projections of future spring phenology should incorporate the effects of these different temperatures.
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http://dx.doi.org/10.1111/nph.14073 | DOI Listing |
Sci Rep
January 2025
School of Computer Science Engineering and Information Systems, Vellore Institute of Technology, Vellore, India.
This study introduces a novel ensemble learning technique namely Multi-Armed Bandit Ensemble (MAB-Ensemble), designed for lane detection in road images intended for autonomous vehicles. The foundation of the proposed MAB-Ensemble technique is inspired in terms of Multi-Armed bandit optimization to facilitate efficient model selection for lane segmentation. The benchmarking dataset namely TuSimple is used for training, validating and testing the proposed and existing lane detection techniques.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), CNRS-Université Orléans-CNES, Orléans Cedex 2 45071, France.
The source of nitrous acid (HONO) and its importance in island or marine environments are poorly understood. Herein, based on comprehensive field measurements at a hilltop on Corsica Island, we find an inverse diel variation of HONO with higher concentrations during daytime. Night-time HONO budget analysis indicates significant HONO formation during air mass transport along the hillside.
View Article and Find Full Text PDFInt Urogynecol J
January 2025
Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA, USA.
Introduction And Hypothesis: Uterine leiomyomata are widely believed to contribute to lower urinary tract symptoms in women, but it is unclear whether leiomyoma size, position, and location have important implications for these symptoms. We assessed whether greater leiomyoma volume, anterior position, and subserosal location were associated with urinary incontinence and frequent urination in a racially diverse, nationwide sample of premenopausal women in the USA.
Methods: A cross-sectional analysis of 477 premenopausal women from 12 USA sites undergoing evaluation for laparoscopic radiofrequency ablation or myomectomy for leiomyomata was carried out.
Minerva Urol Nephrol
December 2024
Department of Urology, Campus Bio-Medico University Polyclinic Foundation, Rome, Italy.
Background: To report the first case series of RARC using a simplified technique for intracorporeal stentless neobladder formation.
Methods: From October 2022 to February 2023, 10 patients with high-risk bladder cancer underwent RARC at our Institution. RARC with extended pelvic lymph node dissection and totally intracorporeal neobladder using Hugo RAS system.
J Exp Zool A Ecol Integr Physiol
January 2025
Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Emilia-Romagna, Italy.
In the wild, stressors occur with varying likelihood throughout the day, leading animals to evolve plastic stress responses that exhibit circadian rhythmicity. In mammals, studies have revealed that the circadian plasticity of stress response may differ with age. However, such developmental effects have been largely overlooked in other vertebrate groups.
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