tag:blogger.com,1999:blog-21626267294691651582024-03-21T19:23:45.037-07:00Gee Aye?Gee Aye?http://www.blogger.com/profile/18329155794352198166noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-2162626729469165158.post-8003692976963982582016-04-12T22:49:00.001-07:002016-04-12T22:51:10.617-07:00My theory about modelsI have had so many requests from my legions of fans to post more blogs. No really, there are a surprising number of people out there that read and re read my pastes... I mean posts ... and check in to see if I have added anything new.<br />
<br />
So today's, and possibly this year's, new post should satisfy those fans. Basically it is this link about <a href="http://www.nytimes.com/2016/04/09/science/in-science-its-never-just-a-theory.html" target="_blank">scientific theories.</a><br />
<br />
<br />
Yep, this is another placeholder in case I need to move someone on from their argument by distraction. You know the one where they write, "it is only a theory". Amazingly, people still try to slip that one into an argument. They are often the same people who distract with, "it is only a model", without understanding that their lives would soon come to an end without models.Gee Aye?http://www.blogger.com/profile/18329155794352198166noreply@blogger.com0tag:blogger.com,1999:blog-2162626729469165158.post-20246242417455365022014-01-14T18:51:00.002-08:002014-01-14T19:06:45.747-08:00Stop Pretending That You Understand Evolution<br />
<br />
All I wanted to do with this post was link to an article, but having written this title I am looking at it with admiration and fantasising about a blog with this title full of articles tearing apart the ridiculous Dunning-Kruger types who create evolutionary stories to justify whatever they like. I come across at least one example per day, where the proponent uses a confected evolutionary explanation to fit their own ideology and not only are they not scrutinsed or questioned sceptically but they are applauded.<br />
<br />
To rectify such arrogance requires deconstructing their argument/story and providing a detailed explanation, with references, about how evolution has been found to work through 100 years of observation and experimentation - within 24 hours of being written so as not to be left unread. Then you have to deal with the denial and the further comments made from ignorance that follow.<br />
<br />
<span style="font-size: large;">So Here Is The Link</span><br />
<br />
Having worked with Marlene Zuk many years ago I was drawn to read her book. This <a href="http://www.theguardian.com/books/2013/apr/24/paleofantasy-evolution-sex-diet-review" target="_blank">article</a> gives a pretty good indication of the nature of the contents and I share the critique that it is sometimes trying to crack a nut with a sledgehammer. And here is an <a href="http://joannenova.com.au/2014/01/there-goes-another-consensus-crash-diets-solve-diabetes-in-3-weeks/#comment-1367326" target="_blank">example</a> of a paleofantasist with a poor grasp of the mechanics of natural selection and the details of human evolution.Gee Aye?http://www.blogger.com/profile/18329155794352198166noreply@blogger.com3tag:blogger.com,1999:blog-2162626729469165158.post-33940306996642363542012-02-23T18:29:00.000-08:002012-02-23T18:29:57.581-08:00Post to be referred to as needed<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmt0I-mENoAOZ7hJFfNCA7O2_o9gwjDW7e6-RnBGCDvNbWbk_t2Ei1snuIUOIibJJWFFycQKfdodmPoAvAonlmzypoezATqmJIeZNMjiCL9n-gqFYBDIZS1MfZSyj8DiXZmnVlrQ503Jg/s1600/DoubleFacePalm.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="318" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmt0I-mENoAOZ7hJFfNCA7O2_o9gwjDW7e6-RnBGCDvNbWbk_t2Ei1snuIUOIibJJWFFycQKfdodmPoAvAonlmzypoezATqmJIeZNMjiCL9n-gqFYBDIZS1MfZSyj8DiXZmnVlrQ503Jg/s400/DoubleFacePalm.jpg" width="400" /></a></div>Gee Aye?http://www.blogger.com/profile/18329155794352198166noreply@blogger.com0tag:blogger.com,1999:blog-2162626729469165158.post-74723196270450810272011-08-31T18:07:00.000-07:002011-08-31T18:07:29.730-07:00DDT MSDS<br />
Here for all you msds fans<br />
<br />
<br />
Sigma - C8894 www.sigma-aldrich.com Page 1 of 5<br />
SIGMA-ALDRICH<br />
SAFETY DATA SHEET<br />
according to Regulation (EC) No. 1907/2006<br />
Version 3.1 Revision Date 08.04.2011<br />
Print Date 31.08.2011<br />
1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING<br />
Product name : 4,4′-DDT<br />
Product Number : C8894<br />
Brand : Sigma<br />
Company : Sigma-Aldrich Pty. Ltd.<br />
12 Anella Avenue<br />
CASTLE HILL NSW 2154<br />
AUSTRALIA<br />
Telephone : +61 2 9841 0555 (1800 800 097)<br />
Fax : +61 2 9841 0500 (1800 800 096)<br />
Emergency Phone # : +44 (0)8701 906777 (1800 448 465)<br />
2. HAZARDS IDENTIFICATION<br />
Classified as hazardous according to criteria of NOHSC. - HAZARDOUS SUBSTANCE.<br />
DANGEROUS GOODS.<br />
Risk advice to man and the environment<br />
Toxic if swallowed. Toxic: danger of serious damage to health by prolonged exposure if swallowed. Limited<br />
evidence of a carcinogenic effect. Very toxic to aquatic organisms, may cause long-term adverse effects in the<br />
aquatic environment.<br />
3. COMPOSITION/INFORMATION ON INGREDIENTS<br />
Formula : C14H9Cl5<br />
Molecular Weight : 354.49 g/mol<br />
CAS-No. EC-No. Index-No. Classification Concentration<br />
1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane<br />
50-29-3 200-024-3 602-045-00-7 T, N, Carc.Cat.3, R25 - R40<br />
- R48/25 - R50/53<br />
-<br />
4. FIRST AID MEASURES<br />
General advice<br />
Consult a physician. Show this safety data sheet to the doctor in attendance.<br />
If inhaled<br />
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.<br />
In case of skin contact<br />
Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.<br />
In case of eye contact<br />
Flush eyes with water as a precaution.<br />
If swallowed<br />
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.<br />
Sigma - C8894 www.sigma-aldrich.com Page 2 of 5<br />
5. FIRE-FIGHTING MEASURES<br />
Suitable extinguishing media<br />
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.<br />
Special protective equipment for fire-fighters<br />
Wear self contained breathing apparatus for fire fighting if necessary.<br />
6. ACCIDENTAL RELEASE MEASURES<br />
Personal precautions<br />
Wear respiratory protection. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate<br />
ventilation. Evacuate personnel to safe areas. Avoid breathing dust.<br />
Environmental precautions<br />
Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the<br />
environment must be avoided.<br />
Methods for cleaning up<br />
Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers<br />
for disposal.<br />
7. HANDLING AND STORAGE<br />
Handling<br />
Avoid contact with skin and eyes. Avoid formation of dust and aerosols.<br />
Provide appropriate exhaust ventilation at places where dust is formed. Normal measures for preventive fire<br />
protection.<br />
Storage<br />
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.<br />
Recommended storage temperature: 2 - 8 °C<br />
8. EXPOSURE CONTROLS/PERSONAL PROTECTION<br />
Components with workplace control parameters<br />
Components CAS-No. Value Control<br />
parameters<br />
Update Basis<br />
1,1,1-Trichloro-<br />
2,2-bis(4-<br />
chlorophenyl)eth<br />
ane<br />
50-29-3 TWA<br />
1 mg/m3 2008-08-20<br />
Australia. Adopted National<br />
Exposure Standards for<br />
Atmospheric Contaminants<br />
in the Occupational<br />
Environment<br />
Remarks National Commission documentation available for these values<br />
Personal protective equipment<br />
Respiratory protection<br />
Where risk assessment shows air-purifying respirators are appropriate use a full-face particle respirator<br />
type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls. If the<br />
respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and<br />
components tested and approved under appropriate government standards such as NIOSH (US) or CEN<br />
(EU).<br />
Hand protection<br />
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without<br />
touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after<br />
use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected<br />
protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374<br />
derived from it.<br />
Sigma - C8894 www.sigma-aldrich.com Page 3 of 5<br />
Eye protection<br />
Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate<br />
government standards such as NIOSH (US) or EN 166(EU).<br />
Skin and body protection<br />
Complete suit protecting against chemicals, The type of protective equipment must be selected according to<br />
the concentration and amount of the dangerous substance at the specific workplace.<br />
Hygiene measures<br />
Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the<br />
product.<br />
9. PHYSICAL AND CHEMICAL PROPERTIES<br />
Appearance<br />
Form solid<br />
Safety data<br />
pH no data available<br />
Melting point 107.0 - 109.0 °C<br />
Boiling point 260.0 °C<br />
Flash point 72.0 - 77.0 °C<br />
Ignition temperature no data available<br />
Lower explosion limit no data available<br />
Upper explosion limit no data available<br />
Vapour pressure 0.0000021 hPa at 20.0 °C<br />
Density 0.99 g/cm3<br />
Water solubility no data available<br />
Partition coefficient:<br />
n-octanol/water<br />
log Pow: 6.91<br />
10. STABILITY AND REACTIVITY<br />
Storage stability<br />
Stable under recommended storage conditions.<br />
Materials to avoid<br />
Oxidizing agents, Iron and iron salts.<br />
Hazardous decomposition products<br />
Hazardous decomposition products formed under fire conditions. - Carbon oxides, Hydrogen chloride gas<br />
Other decomposition products - no data available<br />
11. TOXICOLOGICAL INFORMATION<br />
Acute toxicity<br />
LD50 Oral - rat - 87.0 mg/kg<br />
LD50 Dermal - rabbit - 300.0 mg/kg<br />
Remarks: Behavioral:Tremor. Behavioral:Muscle weakness. Behavioral:Ataxia.<br />
Irritation and corrosion<br />
no data available<br />
no data available<br />
Sigma - C8894 www.sigma-aldrich.com Page 4 of 5<br />
Sensitisation<br />
no data available<br />
Chronic exposure<br />
Limited evidence of carcinogenicity in animal studies<br />
IARC: 2B - Group 2B: Possibly carcinogenic to humans (1,1,1-Trichloro-2,2-bis(4-<br />
chlorophenyl)ethane)<br />
no data available<br />
no data available<br />
Signs and Symptoms of Exposure<br />
CNS stimulation.<br />
Potential Health Effects<br />
Inhalation Toxic if inhaled. May cause respiratory tract irritation.<br />
Skin Toxic if absorbed through skin. May cause skin irritation.<br />
Eyes May cause eye irritation.<br />
Ingestion Toxic if swallowed.<br />
Target Organs Liver, Pancreas.,<br />
Additional Information<br />
RTECS: KJ3325000<br />
12. ECOLOGICAL INFORMATION<br />
Elimination information (persistence and degradability)<br />
Bioaccumulation Oncorhynchus mykiss (rainbow trout) - 20 d<br />
Bioconcentration factor (BCF): 46,670<br />
Ecotoxicity effects<br />
Toxicity to fish LC50 - Pimephales promelas (fathead minnow) - 0.01 mg/l - 96.0 h<br />
LC50 - Lepomis macrochirus (Bluegill) - 0.01 mg/l - 96.0 h<br />
LC50 - Oncorhynchus mykiss (rainbow trout) - 0.003400 mg/l - 96.0 h<br />
LOEC - Oncorhynchus mykiss (rainbow trout) - 150 mg/l - 3.0 d<br />
NOEC - Oncorhynchus mykiss (rainbow trout) - 113 mg/l - 3.0 d<br />
Toxicity to daphnia<br />
and other aquatic<br />
invertebrates.<br />
Immobilization EC50 - Daphnia magna (Water flea) - 0.00108 mg/l - 48 h<br />
Toxicity to algae LC100 - Scenedesmus quadricauda (Green algae) - > 20 mg/l - 7 d<br />
Further information on ecology<br />
Very toxic to aquatic life.<br />
13. DISPOSAL CONSIDERATIONS<br />
Sigma - C8894 www.sigma-aldrich.com Page 5 of 5<br />
Product<br />
Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional<br />
waste disposal service to dispose of this material. Dissolve or mix the material with a combustible solvent and<br />
burn in a chemical incinerator equipped with an afterburner and scrubber.<br />
Contaminated packaging<br />
Dispose of as unused product.<br />
14. TRANSPORT INFORMATION<br />
ADR/RID<br />
UN number: 2811 Class: 6.1 Packing group: III<br />
Proper shipping name: TOXIC SOLID, ORGANIC, N.O.S. (1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane)<br />
IMDG<br />
UN number: 2811 Class: 6.1 Packing group: III EMS-No: F-A, S-A<br />
Proper shipping name: TOXIC SOLID, ORGANIC, N.O.S. (1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane)<br />
Marine pollutant: No<br />
IATA<br />
UN number: 2811 Class: 6.1 Packing group: III<br />
Proper shipping name: Toxic solid, organic, n.o.s. (1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane)<br />
15. REGULATORY INFORMATION<br />
Labelling according to EC Directives<br />
EC Label<br />
Hazard symbols<br />
T Toxic<br />
N Dangerous for the environment<br />
R-phrase(s)<br />
R25 Toxic if swallowed.<br />
R40 Limited evidence of a carcinogenic effect.<br />
R48/25 Toxic: danger of serious damage to health by prolonged exposure if swallowed.<br />
R50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic<br />
environment.<br />
S-phrase(s)<br />
S22 Do not breathe dust.<br />
S36/37 Wear suitable protective clothing and gloves.<br />
S45 In case of accident or if you feel unwell, seek medical advice immediately (show the<br />
label where possible).<br />
S60 This material and its container must be disposed of as hazardous waste.<br />
S61 Avoid release to the environment. Refer to special instructions/ Safety data sheets.<br />
16. OTHER INFORMATION<br />
Further information<br />
Copyright 2011 Sigma-Aldrich Co. License granted to make unlimited paper copies for internal use only.<br />
The above information is believed to be correct but does not purport to be all inclusive and shall be used<br />
only as a guide. The information in this document is based on the present state of our knowledge and is<br />
applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee<br />
of the properties of the product. Sigma-Aldrich Co., shall not be held liable for any damage resulting from<br />
handling or from contact with the above product. See reverse side of invoice or packing slip for additional<br />
terms and conditions of sale.<br />
Gee Aye?http://www.blogger.com/profile/18329155794352198166noreply@blogger.com0tag:blogger.com,1999:blog-2162626729469165158.post-33317948470170373572011-08-03T17:16:00.000-07:002011-08-03T17:16:46.618-07:00Intro!<span class="Apple-style-span" style="background-color: #cfe2f3;"><span class="Apple-style-span" style="font-size: large;">When your hear or read something and you are compelled to say, "Gee. Aye.". </span></span>Gee Aye?http://www.blogger.com/profile/18329155794352198166noreply@blogger.com0