نتایج جستجو برای: diurnal constituents

تعداد نتایج: 53791  

2014
Kyla Drushka Sarah T. Gille Janet Sprintall

Observations from 35 tropical moorings are used to characterize the diurnal cycle in salinity at 1 m depth. The amplitude of diurnal salinity anomalies is up to 0.01 psu and more typically 0.005 psu. Diurnal variations in precipitation and vertical entrainment appear to be the dominant drivers of diurnal salinity variability, with evaporation also contributing. Areas where these processes are s...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2014
ali khalilipour mahmood dejam

background & aim: essential oil of pennyroyal (mentha pulegium l.) has many applications in food, perfume and pharmaceutical industries. the aim of this study was to determine the content and chemical constituents of pennyroyal essential oil growing wild in southern iran. experimental: the aerial parts of the plant were collected around hajiabad, hormozgan province in 2013. the essential oi...

2006
Mimi Hughes Alex Hall

Analyzing a 6-km resolution atmospheric simulation of Southern California from 1995 to the present, we characterize climatological diurnal cycles of surface air temperature and winds. We find that these quantities have significant spatial structure due to dynamical links between them. The large daily warming and cooling over land induces expected flows across the coastline and elevation isoline...

Journal: :The American journal of physiology 1984
G A Carpenter S Grossberg

A neural model of the suprachiasmatic nuclei suggests how behavioral activity, rest, and circadian period depend on light intensity in diurnal and nocturnal mammals. These properties are traced to the action of light input (external zeitgeber) and an activity-mediated fatigue signal (internal zeitgeber) on the circadian pacemaker. Light enhances activity of the diurnal model and suppresses acti...

2015
Shi Chen Shelby J. Fleischer Michael C. Saunders Matthew B. Thomas

Ectotherms, such as insects, experience non-constant temperatures in nature. Daily mean temperatures can be derived from the daily maximum and minimum temperatures. However, the converse is not true and environments with the same mean temperature can exhibit very different diurnal temperate ranges. Here we apply a degree-day model for development of the grape berry moth (Paralobesia viteana, a ...

Journal: :The Journal of Cell Biology 1975
U Pfeifer H Scheller

Cellular autophagy in convoluted tubules of kidney was studied in 24 rats, killed in pairs at constant time intervals during one diurnal cycle, by (a) morphometric evaluation of tubular cells by the point-counting method in randomly sampled micrographs, and (b) selective search for autophagic vacuoles (AV) directly on the electron microscopy screen. The total area of tubular cells recorded in t...

Journal: :Space Science Reviews 2021

Abstract The Emirates Mars Mission (EMM) – Hope Probe was developed to understand atmospheric circulation, dynamics, and processes through characterization of the atmosphere layers its interconnections enabled by a unique high-altitude (19,970 km periapse 42,650 apoapse) low inclination orbit that will offer an unprecedented local seasonal time coverage over most planet. EMM has three scientifi...

2013
WEIHUA YUAN RUCONG YU MINGHUA ZHANG WUYIN LIN JIAN LI YUNFEI FU

The simulations of summertime diurnal cycle of precipitation and low-level winds by the Community Atmosphere Model, version 5, are evaluated over subtropical East Asia. The evaluation reveals the physical cause of the observed diurnal rainfall variation in East Asia and points to the source of model strengths and weaknesses. Two model versions with horizontal resolutions of 2.88 and 0.58 are us...

2015
Takeshi Iwase Kentaro Yamamoto Eimei Ra Kenta Murotani Shigeyuki Matsui Hiroko Terasaki Edoardo Villani.

To investigate the diurnal variations of the ocular blood flow in healthy eyes using laser speckle flowgraphy (LSFG), and to determine the relationship of the diurnal variations between the ocular blood flow and other ocular parameters.This prospective cross-sectional study was conducted at Nagoya University Hospital. We studied 13 healthy volunteers whose mean age was 33.5 ± 7.6 years. The mea...

2012
Dong-Hyun Kim

The major commercial ginsengs are Panax ginseng Meyer (Korean ginseng), P. quinquifolium L. (American ginseng), and P. notoginseng (Burk.) FH Chen (Notoginseng). P. ginseng is the most commonly used as an adaptogenic agent and has been shown to enhance physical performance, promote vitality, increase resistance to stress and aging, and have immunomodulatory activity. These ginsengs contain sapo...

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