Search results for "face"
showing 10 items of 11436 documents
The Influence of Nanoparticle Shape on Protein Corona Formation
2020
Nanoparticles have become an important utility in many areas of medical treatment such as targeted drug and treatment delivery as well as imaging and diagnostics. These advances require a complete understanding of nanoparticles' fate once placed in the body. Upon exposure to blood, proteins adsorb onto the nanoparticles surface and form a protein corona, which determines the particles' biological fate. This study reports on the protein corona formation from blood serum and plasma on spherical and rod‐shaped nanoparticles. These two types of mesoporous silica nanoparticles have identical chemistry, porosity, surface potential, and size in the y ‐dimension, one being a sphere and the other a …
Expressions multiplicatives en textos catalans medievals
2015
Explicitació i aclariment de passatges amb expressions multiplicatives en textos medievals en català: (1) "Estar en quatre tants" (Facet); (2) "A cent doblàries" (Vita Christi d'Isabel de Villena); (3) "Doble és l'afany" (poema 1 d'Ausiàs March). An explicitation and clarification of three medieval Catalan texts' passages with multiplicative expressions: (1) "Estar en quatre tants" (Facet); (2) "A cent doblàries" (Vita Christi by Isabel de Villena); (3) "Doble és l'afany" (Ausiàs March, poem 1).
Safety and immunogenicity of the therapeutic vaccine TG1050 in chronic hepatitis B patients: a phase 1b placebo-controlled trial
2020
Funding: Transgène; International audience; Treatment of chronic hepatitis B (CHB) typically requires life-long administration of drugs. Cohort and pre-clinical studies have established the link between a functional T-cell-mounted immunity and resolution of infection. TG1050 is an adenovirus 5-based vaccine that expresses HBV polymerase and domains of core and surface antigen and has shown immunogenicity and antiviral effects in mice. We performed a phase 1 clinical trial to assess safety and explore immunogenicity and early efficacy of TG1050 in CHB patients. This randomized, double blind, placebo-controlled study included two sequential phases: one single dose cohort (SD, n = 12) and one …
Assessing HYDRUS-2D model to simulate water content and salt accumulation in a soil irrigated with a subsurface drip system: Application in a semiari…
2015
In this paper, the suitability of HYDRUS-2D model to predict the average soil water content in the root zone of potato crop irrigated with subsurface drip irrigation plant, is initially assessed on the basis of a field study. Then, the model is tested to predict the salt distribution around a buried emitter, when two different water qualities (i.e. electrical conductivity of 1.0 dS m-1 and 4.0 dS m-1), are used during the growing season (treatments T1 and T2). Finally, the soil volume in which salts accumulates, as well as the effects on crop yield is recognized for both the considered treatments.The results evidenced that predicted values of average soil water content in the root zone were…
Combined effect of low-molecular-weight organic acids and creosote on phosphatase activities in sandy soil
2018
This paper assesses the impact of creosote and low-molecular-weight organic acids (LMWOAs) on the activity of acid phosphomonoesterase, alkaline phosphomonoesterase, phosphotriesterase, and inorganic pyrophosphatase in soil. The experiment was carried out on loamy sand samples with organic carbon content of 8.71 g · kg -1 , with the following variable factors: dosages of creosote: 0, 0.5%, and 2.5%; type of LMWOAs: oxalic acid, tartaric acid, and citric acid in the amount of 50 mmol · kg -1 of soil; days of experiment: 1, 7, 14, 28, 56, 112. Obtained results showed that contamination with creosote caused decrease in the activity of soil phosphatases. The observed effect did not always incre…
Quasi Phase Matched UV Second Harmonic Generation in Lithium Tantalate soft PE Waveguides
2008
We report on first experimental results on UltraViolet second-harmonic generation by first-order quasiphase-matching in a surface periodically poled proton exchanged Lithium Tantalate waveguide. We have achieved a good compatibility with alpha phase proton exchanged channel waveguides in Lithium Tantalate. We held the sample in a temperature controlled oven kept at a constant temperature of 250 °C, to reduce photorefractive damage. The pump source was a Ti-Sapphire laser with a tunability range of 700 - 980 nm and a 40-GHz linewidth. Continuous wave UV light at 365.4 nm was produced with a conversion efficiency of 6.6% W-1cm-2.
Stress sensitivity of stylolite morphology
2009
International audience; Stylolites are rough surfaces that form by localized stress-induced dissolution. Using a set of limestone rock samples collected at different depths from a vertical section in Cirque de Navacelles (France), we study the influence of the lithostatic stress on the stylolites morphology on the basis of a recent morphogenesis model. We measured the roughness of a series of bedding-parallel stylolites and show that their morphology exhibits a scaling invariance with two self-affine scaling regimes separated by a crossover-length (L) at the millimeter scale consistent with previous studies. The importance of the present contribution is to estimate the stylolite formation s…
Who Can See My Stuff? : Online Self-Disclosure and Gender Differences on Facebook
2018
This study investigates the gendered privacy practices and concerns on Facebook, by leaning on the idea of privacy management as a form of digital labour. We analyse if young Facebook users are more concerned about the privacy against other users than against Facebook as a company or against third-party partners. We also analyse if privacy concerns and visibility rules are differentiated by gender. Using a structured online survey, we collected responses from a sample of 813 Italian university students (aged 18-34). Our results show that the respondents have just slightly more privacy concerns against other users than against Facebook, and much less against third-party partners. Unlike a ma…
Toward a stage theory of adaptive social media use : explaining change in facebook use
2018
Existing research on information technology (IT) use has shown that post- adoptive technology use is not a stable but a dynamic phenomenon in which users apply various adaptation behaviors. Users reshape the technology (IT adaptation), adjust their work routines (task adaptation), and change their own behavior (user adaptation) according to the changes induced by IT. Today, people use increasingly social media and other IT for personal purposes. Facebook (FB) is a good example of personal IT that people voluntarily use for years and has become an integral part of people’s everyday lives. Despite extensive research on IT use and IT/user adaptation, we know little about the dynamics of post-a…
Modālo darbības vārdu lietojums uzņēmuma “Printful” Facebook publikācijās
2022
Uzņēmumiem ir tendence regulāri publicēt atbilstošu saturu sociālo mediju platformās, lai digitāli reklamētu savas preces vai pakalpojumus. Tāpēc šī darba mērķis bija izpētīt, kā viena gada laikā atšķiras modālo darbības vārdu lietojums “Printful” Facebook publikācijās. Mērķa sasniegšanai kā pētījuma metodes tika izvēlētas biežuma un semantiskā analīze. Empīriskā daļa bija vērsta uz modālo un daļēji modālo darbības vārdu biežumu un to semantiskajām funkcijām “Printful” Facebook 2021. gada publikācijās. Rezultāti parādīja, ka visbiežāk lietotie modālie darbības vārdi bija “will” un “can”, bet retāk lietots ir “may”. Visbiežāk modālo darbības vārdu skaits mēnesī svārstījās no 21 līdz 30. Visb…