search for: enzymes

Hi, Is there any way to use R to present t test results for three groups of experiments, each of which involves several parallel experiment series with groups of control vs treated. I would like to present the average fold change of the experimental parameter (concentration of enzymes) as bars with standard error and the p value above the bar. So, there should be two groups (control vs treated) of three bars for the three enzymes. Thanks Peter

> regions = c('cortex', 'hippocampus', 'brain_stem', 'mid_brain', 'cerebellum') > mice = paste('mouse', 1:5, sep='') > for (n in c('Cu', 'Fe', 'Zn', 'Ca', 'Enzyme')) { + assign(n, as.data.frame(replicate(5, rnorm(5)))) + } > names(Cu) = names(Zn) = names(Fe) = names(Ca) = names(Enzyme) =

In the following data.frame there are 6 columns, but 7 are written to the CSV file. install.packages("pmlr") library(pmlr) data(enzymes) write.table(enzymes, sep=",", eol="\n",file="albert.csv")

Hello, I am trying to make a plot of the rates of an enzyme against three different protein concentrations (there are 45 rates in total and split up into 3 groups of 15, each receiving one of the 3 protein concentrations). When I enter the following code I instead get 3 separate boxplots for each of the three different protein concentrations ... plot(rate ~ ferm, data=LDH, col=LDH$rate,

In our environemt, we use PCs (NT) running a JVM that produces unique file names, and data content about 100K or less. We only write to these file. The JVM (the application) does spawn many threads so the net effect can be many simultaneous file creation requests from one PC. All the files are written to a samba mounted directory, and the directory *file* itself does get somewhat large. The

I'm just getting to grips with using ode function and have used the examples and vignettes to produce a small model of a one-pool, michaelis-menten, enzyme kinetic reaction. The rate of flux of substrate into pool A is constant (fluxoa) however the rate of flux out of pool A is controlled by the HMM equation (v = Vmax/ ( 1 + (Km / Concentration A )) ). This function works fine and

...plain what this error means? ------------------------------------------------------------------- Rajarshi Guha <rxg218 at psu.edu> <http://jijo.cjb.net> GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04 06F7 1BB9 E634 9B87 56EE ------------------------------------------------------------------- Enzymes are things invented by biologists that explain things which otherwise require harder thinking. -- Jerome Lettvin

Hi! I want to use the DRC package in order to calculate the IC50 value of an enzyme inhibition assay. The problem is that the estimated ED50, is always out of the fitted curve. In the example below, I had a ED50 value of 2.2896, But when I predict the response level for this concentration I get a value of 45.71 instead of the expected value of 50. This is my data: #Dose unit is concentration

I currently work on a draft of an aquatic bioassessment. The conditions tested are the following: ER river water T dechlorinated water control 0.5 + 0.5mg / L of malate T + 1 dechlorinated water control + 1g / L of malate T ED dechlorinated water control SED + ER + river water sediment SED ED + sediment + water dechlorinated. It is the result of AChE in muscle (fillet of fish). The production of

Greetings people; The section of drakeconf that pclos uses has two problems. First is several screens full of complaints about deprecated syntax in "/etc/udev/rules.d/70-nut-usbups.rules" at each reboot. So I pulled the current 2.5 svn trunk, then found I was missing quite a few build tools needed here that aren't used when building a kernel, currently running a 32 bit

CRAN (and crantastic) updates this week New packages ------------ * allan (1.0) Alan Lee http://crantastic.org/packages/allan Automates Large Linear Analysis Model Fitting * andrews (1.0) Jaroslav Myslivec http://crantastic.org/packages/andrews Andrews curves for visualization of multidimensional data * anesrake (0.3) Josh Pasek http://crantastic.org/packages/anesrake This

Hello, we migrate from Samba 2.2 to Samba 3.020b. We have the problem now, that some clients can not connect to the Samba Server. In the log there are messages like that: [2006/02/23 08:49:20, 2] smbd/sesssetup.c:setup_new_vc_session(704) setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources. [2006/02/23 08:49:20, 2] auth/pampass.c:smb_pam_auth(514)