Results 31 to 40 of about 116,475 (314)

Compatible Models of Carbon Content of Individual Trees on a Cunninghamia lanceolata Plantation in Fujian Province, China. [PDF]

PLoS ONE, 2016
We tried to establish compatible carbon content models of individual trees for a Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) plantation from Fujian province in southeast China.
Lin Zhuo, Hong Tao, Hong Wei, Wu Chengzhen   +3 more
doaj   +1 more source

The effect of total cholesterol/high-density lipoprotein cholesterol ratio on mortality risk in the general population

Frontiers in Endocrinology, 2022
BackgroundThe relationship between the total cholesterol/high-density lipoprotein cholesterol (TC/HDL-C) ratio and all−cause and cardiovascular mortality has not been elucidated.
Dan Zhou, Xiaocong Liu, Kenneth Lo, Kenneth Lo, Kenneth Lo, Yuqing Huang, Yingqing Feng   +6 more
doaj   +1 more source

Penalized wavelet monotone regression [PDF]

, 2007
In this paper we focus on nonparametric estimation of a constrained regression function using penalized wavelet regression techniques. This results into a convex op- timization problem under linear constraints.
Irène Gijbels, Gijbels, Irène, Anestis Antoniadis, Antoniadis, Anestis, Bigot, Jérémie, Jéremie Bigot   +5 more
core   +1 more source

Bias Correction in Logarithmic Regression and Comparison with Weighted Regression for Nonlinear Models

, 2011
Non-linear models with heteroscedasticity are commonly used in ecological and forestry modeling, and logarithmic regression and weighted regression are usually employed to estimate the parameters. Using the single-tree biomass data of three large samples,
Wei Sheng Zeng, Shou Zheng Tang
core   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

FEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero, Maria Kopsida, Nathalie Arendt, Hans Lennernäs, Markus Sjöblom, Femke Heindryckx   +5 more
wiley   +1 more source

Link performance functions for high occupancy vehicle lanes of freeways

Transport, 2018
High Occupancy Vehicle (HOV) lanes are widely used on freeways and play an important role in network design and management. Likewise, link performance functions serve as an essential tool for transport system analysis.
Xiang Zhang, S. Travis Waller
doaj   +1 more source

Testing the martingale difference hypothesis using integrated regression functions [PDF]

, 2006
An omnibus test for testing a generalized version of the martingale difference hypothesis (MDH) is proposed. This generalized hypothesis includes the usual MDH, testing for conditional moments constancy such as conditional homoscedasticity (ARCH effects)
Velasco Gómez, Carlos, Carlos Velasco, Escanciano, J.C. (Juan Carlos), Velasco, C. (Carlos), J. Carlos Escanciano, Velasco, Carlos, Escanciano, Juan Carlos   +6 more
core   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

There was a similar U-shaped nonlinear association between waist-to-height ratio and the risk of new-onset hypertension: findings from the CHNS

Frontiers in Nutrition, 2023
BackgroundThe association between waist-to-height ratio (WHtR) with hypertension has not been adequately explained, so in this study we sought to clarify the predictive role of WHtR on the incidence of hypertension as well as the potential nonlinear ...
Zhenwei Wang, Zhenwei Wang, Zhenwei Wang, Qian Shi, Xuejiao Yan, Junnan Tang, Junnan Tang, Junnan Tang, Jinying Zhang, Jinying Zhang, Jinying Zhang   +10 more
doaj   +1 more source

Long‐Term Follow‐Up of Chemotherapy‐Associated Biological Aging in Women With Early Breast Cancer

Aging and Cancer, EarlyView.
Women threated with adjuvant chemotherapy for early breast cancer have sustained long‐term increase in p16INK4a,, a robust marker of cell senescence, suggesting a chemotherapy‐associated age acceleration. p16INK4a as well as other biomarkers may identify patients at greatest risk for senescence‐related diseases of aging.
Hyman B. Muss, Alexis C. Wardell, Allison M. Deal, Kirsten A. Nyrop, Allison Ross, Yara G. Abdou, Jeffrey D. Aldrich, Lisa A. Cary, E. Claire Dees, Katherine E. Reeder‐Hayes, Emily M. Ray, Natalia Mitin, Denis Tsygankov   +12 more
wiley   +1 more source