search for: pesticide

I am analyzing a dataset on the effects of six pesticides on population growth rate of a predatory mite. The response variable is the population growth rate of the mite (ranges from negative to positive) and the exploratory variable is a categorical variable (treatment). The experiment was blocked in time (3 blocks / replicates per block) and it is unbal...

Does anyone know how to extract residuals in lmer? Here's the error I get: > crop.lme=lmer(response~variety*irrigation*pesticide+(1|rep)+(1|rep: pesticide)+(1|rep:pesticide:irrigation), crop.data) > qqnorm(crop.lme) Error in qqnorm.default(crop.lme) : y is empty or has only NAs > resid(crop.lme) NULL Thanks! --Jake

I am analyzing a dataset on the effects of six pesticides on population growth rate of a predatory mite. The response variable is the population growth rate of the mite expressed as ln(Nfinal/Nstarting) of the mite, where N final the population of the mite at the end of the experiment and N starting the population of the mite at the beginning of the expe...

...time ago, so the data is as it is, and I know it isn't perfect!). A brief description of the experiment follows: Pots of grass were grown in 1l pots of standad potting medium for 1 month with a regular light and watering regime. At this point they were randomly given 1l of one of 4 different pesticides at one of 4 different concentrations (100%, 75%, 50% or 25% in water). There were 20 pots of grass for each pesticide/concentration giving 320 pots. There were no control (untreated) pots. The response was measured after 1 week and recorded as either: B1 - grass dead B2 - grass affected but not de...

This is not a request for help, but I thought the readers of this mailing list might appreciate the following, anyway. I have been working with US EPA's (that's the United States Environmental Protection Agency) Office of Pesticides on a preliminary assessment for the effects of exposure to multiple organophosphate pesticides on human health (as required by the Food Quality Protection Act). This is a particularly high profile activity, and requires external review, conducted by a panel of scientists from relevant disciplines...

...to add a legend to a graph. Better, I'd like to put in such a legend a new item whose color could remind the colour ol the columns it refers to in the plot. I wrote: leg.txt<-c("control people", "radiated ill people", "radiated healthy people", "pesticide exposed people") leg.col<-c("lightblue", "gray", "lightcyan","lavender") grA<-barplot(seqA, type = "h", col = c(colors),legend.text = c(leg.txt),main = " Number of breaks occured on cluster A bands on patients' sample",...

...irectories under the /das, /em and /psb directories (in this simplified example) moving them from /export/home on server A to /export/home/extranet on server B. This is what I have in a rsyncd.conf on server B. [dprweb_extranet] path = /export/home/extranet comment = California Department of Pesticide Regulation Extranet uid = webuser gid = other read only = no list = yes hosts allow = ww.xxx.yy.zz secrets file = /etc/.password auth users = aaa Here is the command I've tried on server A /usr/local/bin/rsync -n -vvv --stats -Pzrtpl --delete --password-file=/export/home/w...

...to add a legend to a graph. Better, I'd like to put in such a legend a new item whose color could remind the colour ol the columns it refers to in the plot. I wrote: leg.txt<-c("control people", "radiated ill people", "radiated healthy people", "pesticide exposed people") leg.col<-c("lightblue", "gray", "lightcyan","lavender") grA<-barplot(seqA, type = "h", col = c(colors),legend.text = c(leg.txt),main = " Number of breaks occured on cluster A bands on patients' sample",...

Aside from the replay attacks discussed, there are some other attack vectors on the cookie_session store. I appreciate (and admire!) Jeremy''s good humor on all of this: > Planting the seed here led to quick ripening and plenty of pesticide. > Thanks for the fish, all. > > jeremy Anyway, here''s what we came up with: 1. Brute Force SHA512 can be computed _very_ fast. On my Pentium Core Duo: irb> z = ''z'' * 100; puts Benchmark.measure { 1000.times { Digest::SHA512.hexdigest(z) }} 0.032000 0.0...

...eam of environmental health scientists, social scientists, and human-computer interaction experts is designing a digital interface that we expect will become the standard for reporting results in biomonitoring and exposure studies. We will first develop and test the interface for reporting personal pesticide exposures to residents of Boston public housing. Responsibilities: This position requires versatility in support of the Institute?s transdisciplinary research. It reports to the executive director and affords a bird?s-eye-view of research in human computer interaction, environmental health science...

...CART in Drug Discovery: Identifying Rules for Making Better Small Molecules Jing Wang, Cengent Therapeutics Improving the Ability to Predict Drug-Like Compounds from Virtual Screening Using CART Donovan Chin, Biogen The Importance of CART and MARS in Environmental Fate and Risk Assessment for Pesticides Cecil Dharmasri, Syngenta Crop.

...before, browsing has returned to the network neighborhood. Is my hypothesis correct? If so, how can I get my servers to win the browser elections? Peter Stoddard <stoddard@empm.cdpr.ca.gov> System Administrator Environmental Monitoring and Pest Management Branch California Department of Pesticide Regulation (916) 730-0490, (916) 324-4168 or (916) 324-4078

Hi I apologise for this question as it really must be a FAQ. Unfortunately, I can't find the answer and I'm tired of looking at endless google results A colleague of mine works for a state government department that has a policy against open source software or software tainted by open source. Other government departments in the same state use R but this particular department is driven