نتایج جستجو برای: heterogeneous sample

تعداد نتایج: 528257  

Journal: :journal of nanostructures 2014
e. esmaeili a. rashidi

in the present study, tin-promoted pd/mwnts nanocatalystwas synthesized via polyol technique for application in hydrogenation of high-concentrated acetylene feedstocks. tem images showed a restricted distribution of nanoparticles in the range of 3-5 nm. the results indicated that nanoparticles sizes were resistant to further catalyst deactivation. xrd patterns signified alloying between pd and ...

Journal: :journal of petroleum science and technology 2014
saeid ahmadjo hassan arabi gholam hossein zohuri gholam reza nejabat mojtaba omidvar

bis(2-r-ind)zrcl2 (r: h or phenyl) was supported on different types of silica by in situ impregnation method and used for ethylene polymerization. in this method, the step of catalyst loading on support was eliminated and common alkyl aluminum (triisobutylaluminum, tiba) cocatalyst was used instead of expensive methyl aluminiumoxane (mao) cocatalyst in the polymerization. the effect of surface ...

2002
Rachel E. Courtland

We use confocal microscopy to directly visualize the dynamics of aging colloidal glasses. We prepare a colloidal suspension at high density, a simple model system which shares many properties with other glasses, and initiate experiments by stirring the sample. We follow the motion of several thousand colloidal particles after the stirring and observe that their motion significantly slows as the...

Journal: :Advanced materials and technologies 2023

Biophysical Cytometry In article number 2201463, Carlos Honrado, Nathan S. Swami, and co-workers present integration of multichannel impedance cytometry downstream high throughput microfluidic cell separation that is presented for on-chip multiparametric phenotypic validation the enrichment activated macrophages from a heterogeneous sample, without any sample loss, bias or dilution.

Journal: :Angewandte Chemie 2015
Hee-Sun Han Paul G Cantalupo Assaf Rotem Shelley K Cockrell Martial Carbonnaux James M Pipas David A Weitz

Metagenomic studies suggest that only a small fraction of the viruses that exist in nature have been identified and studied. Characterization of unknown viral genomes is hindered by the many genomes populating any virus sample. A new method is reported that integrates drop-based microfluidics and computational analysis to enable the purification of any single viral species from a complex mixed ...

Journal: :Journal of anxiety disorders 2015
Lara S Rifkin Courtney Beard Kean J Hsu Lauryn Garner Thröstur Björgvinsson

Anxiety sensitivity (AS) is associated with various forms of psychopathology. The most common measure of AS is the anxiety sensitivity index-3 (ASI-3). The current study examined the psychometric properties and factor structure of the ASI-3 in an acute and comorbid population seeking treatment for a broad range of psychopathology (N=382). Results confirmed a bi-factor structure and suggested th...

2016
Agna A. Bartels-Velthuis Maya J. Schroevers Karen van der Ploeg Frits Koster Joke Fleer Erik van den Brink

We developed a novel compassion-focused training (mindfulness-based compassionate living; MBCL) and examined its effects in a heterogeneous psychiatric outpatient population with regard to feasibility and changes in levels of depression, anxiety, mindfulness and compassion. The training consisted of nine weekly 2.5-h sessions. Thirty-three patients, who had followed a mindfulness-based stress r...

Journal: :Appetite 2016
Neha Khandpur Jo Charles Rachel E Blaine Christine Blake Kirsten Davison

BACKGROUND Food parenting practices (FPPs) are important in shaping children's dietary behaviors. However, existing FPP knowledge is largely based on research with mothers. PURPOSE This study (1) identified fathers' FPPs; (2) described differences in FPP use by fathers' education and residential status. METHODS Semi-structured interviews were conducted with 40 fathers (39 ± 9.1 years; 37.5%...

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