Results 11 to 20 of about 20,472,724 (278)

Synthesis of mesoporous silica microsphere from dual surfactant

open access: yesMaterials Research, 2008
A new procedure is reported to synthesis mesoporous silica micro sphere for the first time. In these method two surfactants namely Span 80 and Tween 80 were used. Small angle X ray diffraction and N2 adsorption analysis shows the synthesized material has
Venkatathri Narayanan
doaj   +1 more source

Formulation of Snail Slime (Achatina Fulica) Anti-Acne Emulgel using Tween 80-Span 80 as Emulsifying and HPMC as Gelling Agent

open access: yesBorneo Journal of Pharmacy, 2018
Acne is the condition of abnormal skin which is indicated by inflammation caused by the bacterial infection of Propionibacterium acnes. The natural one which can be used for the medical treatment of acne is the snail mucus (Achatina fulica).
Nur Saadah Daud   +3 more
doaj   +1 more source

Housing professionalism in the United Kingdom: the final curtain or a new age? [PDF]

open access: yes, 2002
The unusually large, predominantly municipal, housing sector in the UK has provided the context for a large occupational grouping of "housing managers" that has claimed professional status.
Cole, I., Furbey, R., Reid, B.
core   +1 more source

Correlation between the reliability of HEMT devices and that of a combined oscillator-amplifier [PDF]

open access: yes, 2001
We evaluate an oscillator-amplifier MMIC submitted to high-temperature operating life time tests. To relate adequately these results with individual components’ results, it is important to realise that failure mechanisms in non-linear MMICs are governed ...
Beyer, A.   +5 more
core   +1 more source

Effects of Tween 80 on growth and biofilm formation in laboratory media

open access: yesFrontiers in Microbiology, 2016
Tween 80 is a widely used nonionic emulsifier that is added to cosmetics, pharmaceuticals and foods. Because of its widespread use we need to understand how it affects bacteria on our skin, in our gut, and in food products.
Christina Krogsård Nielsen   +5 more
doaj   +1 more source

High-contrast dark resonance on the D2 - line of 87Rb in a vapor cell with different directions of the pump - probe waves

open access: yes, 2005
We propose a novel method enabling to create a high-contrast dark resonance in the 87Rb vapor D2-line. The method is based on an optical pumping of atoms into the working states by a two-frequency, linearly-polarized laser radiation propagating ...
1   +15 more
core   +1 more source

A description of the ratio between electric and magnetic proton form factors by using space-like, time-like data and dispersion relations

open access: yes, 2005
We use the available information on the ratio between the electric and magnetic proton form factors coming from recently published space-like data and from the few available time-like data.
11   +40 more
core   +1 more source

DEVELOPMENT OF ANTI DROWSINESS AND ALERT SYSTEM FOR AUTOMOBILE DRIVERS [PDF]

open access: yesProceedings on Engineering Sciences
Drowsy Driving has been one of the leading causes of traffic and road accidents. According to the National Safety Council (2021), sleepy driving causes 100,000 collisions and 71,0 injuries, including 1,550 deaths per year.
Nastaran Reza Nazar Zadeh   +5 more
doaj   +1 more source

UJI AKTIVITAS ANTIOKSIDAN EKSTRAK BUAH SENGGANI (Melastoma malabathricum L.) METODE DPPH (2,2-Diphenyl-1-picrylhidrazyl) SERTA APLIKASINYA PADA KRIM ANTIOKSIDAN

open access: yesJIIS: Jurnal Ilmiah Ibnu Sina, 2018
Buah senggani berwarna ungu ketika matang, mengindikasikan tingginya kandungan antioksidannya. Antioksidan digunakan untuk melindungi kulit dari oksidasi sehingga dapat mencegah penuaan dini.
Dian Kartikasari   +2 more
doaj   +5 more sources

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