Results 71 to 80 of about 6,212,855 (344)

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Prognostic Factors Associated with Breast Cancer-Specific Survival from 1995 to 2022: A Systematic Review and Meta-Analysis of 1,386,663 Cases from 30 Countries

Diseases
Breast cancer is the fifth-ranked cancer globally. Despite early diagnosis and advances in treatment, breast cancer mortality is increasing. This meta-analysis aims to examine all possible prognostic factors that improve/deteriorate breast cancer ...
Hanif Abdul Rahman, Siti Nurzaimah Nazhirah Zaim, Ummi Salwa Suhaimei, Al Amin Jamain   +3 more
doaj   +1 more source

15-year risk of developing type 2 diabetes mellitus and its relationship with personal anxiety, sleep disturbance among men 45-69 years old in Russia /Siberia (international epidemiological study “HAPIEE”)

Сахарный диабет, 2020
BACKGROUND: Determine the effect of personal anxiety, sleep disorders on the 15-year risk of developing (RR) diabetes mellitus (DM) type 2 among men (M) 45-69 years in Russia / Siberia (Novosibirsk).
V. V. Gafarov, E. A. Gromova, D. O. Panov, S. V. Mustafina, L. V. Shcherbakova, S. K. Malyutina, O. D. Rymar, I. V. Gagulin, A. V. Gafarova, O. V. Sazonova   +9 more
doaj   +1 more source

Survival after liver transplantation in the United Kingdom and Ireland compared with the United States

, 2007
<b>Background and Aim</b>: Surgical mortality in the US is widely perceived to be superior to that in the UK. However, previous comparisons of surgical outcome in the two countries have often failed to take sufficient account of case-mix or ...
Copley, L.P., Dawwas, M.F., Gimson, A.E., Lewsey, J.D., van der Meulen, J.   +4 more
core   +2 more sources

Flash Flood Hazard Susceptibility Mapping Using Frequency Ratio and Statistical Index Methods in Coalmine Subsidence Areas

, 2016
This study focused on producing flash flood hazard susceptibility maps (FFHSM) using frequency ratio (FR) and statistical index (SI) models in the Xiqu Gully (XQG) of Beijing, China.
C. Cao, Peihua Xu, Yihong Wang, Jianping Chen, Lianjing Zheng, Cencen Niu   +5 more
semanticscholar   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

Population Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Prevalence of Abdominal Obesity in Chinese Middle-Aged and Older Adults with a Normal Body Mass Index and Its Association with Type 2 Diabetes Mellitus: A Nationally Representative Cohort Study from 2011 to 2018

Diabetes, Metabolic Syndrome and Obesity, 2021
Xuan Chen,1,* Mingrui Duan,1,2,* Rui Hou,1,2,* Manqi Zheng,1,2 Haibin Li,3 Manjot Singh,4,5 Changwei Li,6 Kuo Liu,1,2 Feng Zhang,1,2 Xinghua Yang,1,2 Yanxia Luo,1,2 Yan He,1,2 Lijuan Wu,1,2 Deqiang Zheng1,2,7 1Department of Epidemiology and ...
Chen X, Duan M, Hou R, Zheng M, Li H, Singh M, Li C, Liu K, Zhang F, Yang X, Luo Y, He Y, Wu L, Zheng D   +13 more
doaj  

Density Regression Based on Proportional Hazards Family [PDF]

, 2015
This paper develops a class of density regression models based on proportional hazards family, namely, Gamma transformation proportional hazard (Gt-PH) model . Exact inference for the regression parameters and hazard ratio is derived.
Bickel, Carroll, Engel, Hosmer, Keming Yu, Lee, Marshall, Nelder, Newey, Smyth, Smyth, Wei Dang, Western, Zou   +13 more
core   +2 more sources

Network meta-analysis on the log-hazard scale, combining count and hazard ratio statistics accounting for multi-arm trials: A tutorial

BMC Medical Research Methodology, 2010
BackgroundData on survival endpoints are usually summarised using either hazard ratio, cumulative number of events, or median survival statistics. Network meta-analysis, an extension of traditional pairwise meta-analysis, is typically based on a single ...
B. Woods, N. Hawkins, D. Scott
semanticscholar   +1 more source

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

FEBS Letters, EarlyView.
Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta, Agnieszka Katarzyna Maciola, Tania Baccega, Giulia Pasqual   +3 more
wiley   +1 more source