Results 21 to 30 of about 1,078,112 (127)

Comparative studies of Population Synthesis Models in the frame work of modified Str\"{o}mgren filters

open access: yes, 2014
Evolutionary models form a vital part of stellar population research to understand their evolution, but despite their long history of development, they often misrepresent and misinterpret the properties of stellar population observed through broadband ...
Hensler, Gerhard   +2 more
core   +1 more source

Separation of Blood Mixtures Using Fluorescently Labeled Antibodies [PDF]

open access: yes, 2017
Identifying and analyzing biological mixture samples at a crime scene are of paramount concern for forensic scientists, especially if that type of evidence contains only one cell type. The presence of multiple contributors in a biological evidence sample
Jabado, Dani
core   +2 more sources

Quasar Str\"omgren Spheres Before Cosmological Reionization [PDF]

open access: yes, 2000
Ionizing sources embedded in the neutral intergalactic medium (IGM) before cosmological reionization generate discrete HII regions. We show that a sufficiently bright quasar (for example, one tenth as luminous as that recently discovered by Fan et al ...
Cen, Renyue, Haiman, Zoltan
core   +2 more sources

The apparent shape of the "Str\"omgren sphere'' around the highest-redshift QSOs with Gunn-Peterson troughs

open access: yes, 2004
Although the highest redshift QSOs (z>6.1) are embedded in a significantly neutral background universe (mass-averaged neutral hydrogen fraction >1%) as suggested by the Gunn-Peterson absorption troughs in their spectra, the intergalactic medium in their ...
Couderc P., Qingjuan Yu, Rees M. J.
core   +1 more source

"Moment-Based Estimation of Smooth Transition Regression Models with Endogenous Variables" [PDF]

open access: yes
Nonlinear regression models have been widely used in practice for a variety of time series and cross-section datasets. For purposes of analyzing univariate and multivariate time series data, in particular, Smooth Transition Regression (STR) models have ...
Marcelo C. Medeiros   +2 more
core   +3 more sources

ScotRail and Adopt A Station: the indirect benefits of community involvement in public transport spaces [PDF]

open access: yes, 2012
In recent years the customer role has evolved from a passive recipient of services to a proactive cocreator in the activities of an organisation Customers are increasingly viewed as a resource with firms increasing collaboration to increase benefits to ...
Alexander, Matthew
core  

Fixed versus random triangulations in 2D simplicial Regge calculus

open access: yes, 1996
We study 2D quantum gravity on spherical topologies using the Regge calculus approach with the $dl/l$ measure. Instead of a fixed non-regular triangulation which has been used before, we study for each system size four different random triangulations ...
Holm, Christian, Janke, Wolfhard
core   +1 more source

On the homotopy theory of stratified spaces

open access: yes, 2019
Let $ P $ be a poset. We show that the $\infty$-category $\mathbf{Str}_P$ of $\infty$-categories with a conservative functor to $P$ can be obtained from the ordinary category of $P$-stratified topological spaces by inverting a class of weak equivalences.
Haine, Peter J.
core  

用荧光复合扩增体系检测5个X染色体短串联重复 序列基因座的多态性

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2009
【目的】 为了研究X染色体短串联重复序列(X-STR)基因座的遗传多态性,我们检测了DXS680365380;DXS98165380;DXS680965380;DXS6789和DXS7132 5个基因座在广东汉族人群中的多态性65377; 【方法】 利用荧光标记引物PCR技术复合扩增上述5个基因座,并用ABI PRISM 3100毛细管电泳及GeneMapper ID3.1软件进行基因分型65377;【结果】 在363个广东汉族无关个体(男性:181个,女性:182个 ...
doaj  

ENVISAT tropical validation of cloud and ozone parameters by high-altitude aircraft. [PDF]

open access: yes, 2007
The validation of cloud top and ozone vertical column, measured by SCIAMACHY, were carried out respectively by lidars and in-situ and remote-sensing ozone instruments on-board the high altitude Geophysica aircraft.
Azzolini, R.   +14 more
core  

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