Sequence analysis of the bacterial luminescence (lux) genes has proven effective in helping resolve evolutionary relationships among luminous bacteria. Phylogenetic analysis using lux genes, however, is based on the assumptions that the lux genes are present as single copies on the bacterial chromosome and are vertically inherited. We report here that certain strains of Photobacterium leiognath...

Temporal modulation sensitivity functions (MSFs) were measured behaviorally in three adult tree shrews (Tupaia belangeri). Shrews were trained to detect temporal sinusoidally-modulated full-field luminance variations in one of three stimuli, the two alternatives being static stimuli of equal size and time-averaged luminance (34 cd/m2). Modulation depth was varied trial-by-trial using a modified...

This study aimed to identify the luminance and contrast levels necessary to minimise the threshold identification size of bright letters displayed over a dark background on an LCD under low (1.5 lux) and high (260 lux) lighting conditions. White, pure red, pure green and pure blue upper-case Bailey Lovie letters with a contrast between 3:1 and 300:1 were displayed on an LCD to 20 participants. ...

The complaints, worries and dissatisfactions accrued to bulb users prompted the quest of this research. objective research is suitably assess few electrical parameters bulbs available in market order have an experimental proof disparity their ratings. In data, incandescent (100W 200W), LED (5W) CFL (40W) (of different powers) were selected for evaluation. power lux measured compared correspondi...

Setiap ruangan memeiliki fungsi yang berbeda baik itu umum mapun khusus, Begitupun rawat inap kelas terpadu di RSUD Dr Muhammad Zein Painan berada didaerah Pesisir Selatan Provinsi Sumatera Barat. Oleh karena perlu pembaruan mengevaluasi dan menganalisa kembali pada Gedung RS, terutama sistem kelistrikan, penerangan pembumian. Penelitian ini untuk mengetahui apakah sesuai SNI PUIL 2011 atau tid...

Green building is the concept of designing, building, operating, and maintaining buildings that pay attention to use natural resources, indoor air quality, health occupants. This green choice in responding issue limited non-renewable energy. To monitor environmental conditions buildings, a sensor system needed maintain according standards. study aims design Universitas Multimedia Nusantara. A r...

Surface albedo is an important concept, useful in explaining how closed systems (such as the Earth Atmosphere) respond to incident radiant energy. Specialist, calibrated equipment is used by geo-scientists to measure ambient and reflected radiation from subject sources – this is often cost prohibitive within a teaching environment. A “semi” calibrated method is presented, utilising simple digit...

Vibrio fischeri quorum sensing involves the LuxI and LuxR proteins. The LuxI protein generates the quorum-sensing signal N-3-oxohexanoyl-l-homoserine lactone (3OC6-HSL), and LuxR is a signal-responsive transcriptional regulator which activates the luminescence (lux) genes and 17 other V. fischeri genes. For activation of the lux genes, LuxR binds to a 20-base-pair inverted repeat, the lux box, ...

The characteristics of a performing arts space have great influence on the experience that both artists and audiences during show. Therefore, it is importance to understand sound field behaviour, lighting, thermo-hygrometry ambient conditions existing inside this cultural heritage. aim paper presentation complete assessment in relation comfort an Opera theatre its whole. As such, has been under...

PURPOSE To investigate whether regulation of rhodopsin levels as a response to changed lighting environment is performed by autophagic degradation of opsin in rod inner segments (RISs). METHODS Groups of albino rats were kept in 3 lux or 200 lux. At 10 weeks of age, one group was transferred from 3 lux to 200 lux, another group was switched from 200 lux to 3 lux, and two groups remained in th...