Results 31 to 40 of about 4,462,335 (242)

Quantitative proteomics reveals that dormancy-related proteins mediate the attenuation in mycobacterium strains

open access: yesVirulence, 2021
Although members of the Mycobacterium tuberculosis complex (MTBC) exhibit high similarity, they are characterized by differences with respect to virulence, immune response, and transmissibility.
Hong Wang   +17 more
doaj   +1 more source

Dendrimer Anion-Exchange Stationary Phase for Separation of Oligonucleotides

open access: yesMolecules, 2022
Oligonucleotides are used in many research areas. Thus, there is a need for their successful separation methods. Ion-exchange chromatography is the most popular separation technique, but it has limitations for these compounds.
Sylwia Studzińska   +3 more
doaj   +1 more source

Chromatographic and spectroscopic studies on β-cyclodextrin functionalized ionic liquid as chiral stationary phase: Enantioseparation of NSAIDs

open access: yesAdsorption Science & Technology, 2018
Recently, we reported a new chiral stationary phase prepared using β-cyclodextrin functionalized with aromatic ionic liquid which is aimed to enhance the performance of enantioseparation of flavonoids and β-blockers.
Nurul Yani Rahim   +2 more
doaj   +1 more source

New Stationary Frame Control Scheme for Three Phase PWM Rectifiers Under Unbalanced Voltage Dips Conditions [PDF]

open access: yes, 2010
A new stationary frame control scheme for three-phase pulsewidth-modulation (PWM) rectifiers operating under unbalanced voltage dips conditions is proposed in this paper.
BOJOI, IUSTIN RADU   +5 more
core   +1 more source

Wavefront tracking within the stationary phase approximation

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2007
A physical optics approach to wavefront tracking is presented based on the stationary phase approximation. It allows for modeling transmission of radiation through a system of optical elements including coherence properties with an acceptable numerical ...
Johannes Bahrdt
doaj   +1 more source

Research Progress in the Preparation and Applications of Hydrophilic Chromatographic Materials for Separation of Monosaccharides and Oligosaccharides [PDF]

open access: yesShipin Kexue
Carbohydrates play a vital role in food science, medicine science, life science and other fields. Carbohydrates can be divided into monosaccharides, oligosaccharides, and polysaccharides, among which monosaccharides and oligosaccharides are mostly ...
ZHANG Dandan, JIAO Ruiwen, MI Chunxiao, CHEN Ju, LI Xiang, WANG Qiukuan, REN Dandan, HE Yunhai, WU Long, ZHOU Hui
doaj   +1 more source

Countercurrent chromatography in analytical chemistry (IUPAC technical report) [PDF]

open access: yes, 2009
© 2009 IUPACCountercurrent chromatography (CCC) is a generic term covering all forms of liquid-liquid chromatography that use a support-free liquid stationary phase held in place by a simple centrifugal or complex centrifugal force field. Biphasic liquid
Sutherland, IA   +37 more
core   +2 more sources

Modelling of Hydrophilic Interaction Liquid Chromatography Stationary Phases Using Chemometric Approaches

open access: yesMetabolites, 2017
Metabolomics is a powerful and widely used approach that aims to screen endogenous small molecules (metabolites) of different families present in biological samples. The large variety of compounds to be determined and their wide diversity of physical and
Meritxell Navarro-Reig   +3 more
doaj   +1 more source

The microbiome in human skin aging

open access: yesFEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana   +3 more
wiley   +1 more source

Exometabolite Dynamics over Stationary Phase Reveal Strain-Specific Responses

open access: yesmSystems, 2020
Microbial exponential growth is expected to occur infrequently in environments that have long periods of nutrient starvation punctuated by short periods of high nutrient flux. These conditions likely impose nongrowth states for microbes.
John L. Chodkowski, Ashley Shade
doaj   +1 more source

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