Results 51 to 60 of about 235,609 (336)

Light-Mediated Population Dynamics of Picocyanobacteria Shaping the Diurnal Patterns of Microbial Communities in an Atoll Lagoon

Microorganisms
The diurnal cycle of light significantly impacts microbes, making diurnal investigations crucial for understanding microbial communities. Zhubi Reef is known to harbor exceptionally rich biodiversity, with both zooplankton and seawater properties ...
Ying Yu, Maosen Shangguan, Ping Sun, Xiaofeng Lin, Jiqiu Li   +4 more
doaj   +1 more source

Sex Hormones Associate With Amyotrophic Lateral Sclerosis Risk and Survival

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Amyotrophic lateral sclerosis (ALS) risk differs by sex and age, implicating sex hormones as potential modifiers. This study examined plasma levels of biologically active sex hormones and their association with ALS odds and survival in cases (females n = 131, males n = 189) and controls (females n = 138, males n = 150) from the University of ...
Stephen A. Goutman, David G. Stouffer, Dae‐Gyu Jang, Jihyun Park, Benjamin J. Murdock, Richard J. Auchus   +5 more
wiley   +1 more source

A Prediction Model of Marine Geomagnetic Diurnal Variation Using Machine Learning

Applied Sciences
Geomagnetic diurnal variation significantly influences the precision of marine magnetic measurements. Precise estimation of this variation is crucial for enhancing the accuracy of offshore magnetic surveys.
Pan Xiong, Gang Bian, Qiang Liu, Shaohua Jin, Xiaodong Yin   +4 more
doaj   +1 more source

Diurnal variation of tension-type headache intensity and exacerbation: An investigation using computerized ecological momentary assessment

BioPsychoSocial Medicine, 2012
Backgrounds Tension-type headache is a common psychosomatic disease. However, diurnal variation of headache is yet to be clarified, perhaps due to the lack of an appropriate method to investigate it.
Kikuchi Hiroe, Yoshiuchi Kazuhiro, Yamamoto Yoshiharu, Komaki Gen, Akabayashi Akira   +4 more
doaj   +1 more source

In-situ measurements of oxygen, carbon monoxide and greenhouse gases from Ochsenkopf tall tower in Germany [PDF]

, 2009
We present 2.5 years (from June 2006 to December 2008) of in-situ measurements of CO2, O2, CH4, CO, N2O and SF6 mixing ratios sampled from 23, 90 and 163m above ground on the Ochsenkopf tower in the Fichtelgebirge range, Germany (50?0104900 N, 11?4803000
Gloor, E, Hansel, F, Heimann, M, Jordan, AJ, Manning, AC, Schultz, U, Seifert, T, Thompson, RL   +7 more
core   +2 more sources

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Diurnal Variation in Peak Expiratory Flow and Forced Expiratory Volume [PDF]

Journal of Clinical and Diagnostic Research, 2015
Introduction: Diurnal variability in airways has most commonly been reported using peak expiratory flow (PEF) and forced expiratory volume in one second (FEV1). Characteristics of variability in small, mid and large airways caliber are expected to be
Arun Goel, Manish Goyal, Ruchi Singh, Narsingh Verma, Sunita Tiwari   +4 more
doaj   +1 more source

Increasing leaf hydraulic conductance with transpiration rate minimizes the water potential drawdown from stem to leaf. [PDF]

, 2014
Leaf hydraulic conductance (k leaf) is a central element in the regulation of leaf water balance but the properties of k leaf remain uncertain. Here, the evidence for the following two models for k leaf in well-hydrated plants is evaluated: (i) k leaf is
Barbour, Margaret, Burns, Emily, Choat, Brendan, Dawson, Todd, Franks, Peter, Simonin, Kevin   +5 more
core   +3 more sources

Serum Uric Acid Levels in Older Adults: Associations With Clinical Outcomes and Implications for Reference Intervals in Those Aged 70 Years and Over

Arthritis Care &Research, EarlyView.
Objective Reports have linked both high and low serum uric acid (SUA) levels to adverse health outcomes. This study aimed to establish a reference interval for SUA in older adults and assessed its association with clinically relevant outcomes in relatively healthy, community‐dwelling individuals aged ≥70 years old.
Amanda J. Rickard, Cammie Tran, Hans G. Schneider, Flavia M. Cicuttini, Anita E. Wluka, Ego Seeman, Johannes T. Neumann, Md Nazmul Karim, Zhen Zhou, Sultana Monira Hussain, David P. Q. Clark, Daniel Clayton‐Chubb, Andrew M. Tonkin, Lawrence J. Beilin, Robyn L. Woods, John J. McNeil   +15 more
wiley   +1 more source

Effect of adrenalectomy on the diurnal variation of hepatic cholesterogenesis in the rat

Journal of Lipid Research, 1972
The diurnal variation in cholesterol synthesis exhibited by rat liver has been examined in fed, fasted, and adrenalectomized animals.Fasting for 3 days caused a lowering of the rate of synthesis but did not abolish the diurnal rhythm.
Peter E. Hickman, Brian J. Horton, John R. Sabine   +2 more
doaj   +1 more source