Sweaty

A patchy form of rust that attacks paint films from underneath, can be caused by sweaty hands, residues from fluxes, etc. Examples of the latter include residues from phosphating and soluble salts (including those from unsuitable rinsing water) and they can manifest themselves on steel in the form of a creeping filiform corrosion, i.e. as progressing threads of rust which loosen the coating. This can be followed visually through transparent films. It occurs, however, only when the relative humidity of the surround-... 

Enantiomers of the same compound may have differing threshold values. This property was observed for a new, strong and high impact, flavor compound, 3-thio-2-methylpentan-l-ol, first detected in thermally processed materials but that is actually present in raw onions.54 First of all, there is a marked concentration effect at 1 ppm in 5% saltwater, the odor is described as sulfuric, burnt gum, sweaty, onion and at 0.5 ppb as meat broth, sweaty, onion, leek . Since there are two chiral centers (both dependent on carbon) there are four stereoisomers, all of which have been prepared 18a, 18b, 19a, 19b (Scheme 7). For this compound, enantiomers have the following marked differences in odor thresholds (but apparently all have the same general odor). 

Typically, there is a latent period with no visible effects between the time of exposure and the sudden onset of symptoms. This latency can range from 1 minutes to 18 hours and is affected by such factors as the amount of agent involved, the amount of skin surface in contact with the agent, and the area of the body exposed (see Liquids). Moist, sweaty areas of the body are more susceptible to percutaneous penetration by solid nerve agents. 

Neonate fulminant syndrome coma, convulsions. Rancid odor of sweaty socks ... 

Producing sweat is one of the body s natural ways of cooling itself, and it operates as follows. Sweat is an aqueous solution of salt and natural oils, and is secreted by glands just below the surface of the skin. The glands generate this mixture whenever the body feels too hot. Every time air moves over a sweaty limb, from a mechanical fan or natural breeze, the skin feels cooler following evaporation of water from the sweat. 

Conversely, if we were to vaporize exactly 1 mol of water from the skin of a sweaty body, the change in internal energy would be +40 700 J. In other words, the magnitude of the change is identical, but the sign is different. 

The heat was absolutely, making everyone irritable, sweaty,... 

Here is a bit of a complication there is a lot of individual variation in the sense of human olfaction. Not everything smells the same to everyone. This holds both for the intensity of the perceived smeU as well as for its quality pleasant, floral, skunky, sweaty, or no odor at all. Andreas Keller has recently demonstrated that some significant part of this individual variation in the sense of smell derives from genetic variation in human odorant genes. Specifically, two single nucleotide polymorphisms (SNPs), leading to two amino acid substitutions in an odorant receptor, have dramatic affects on the perception of the odor of androstenone, a steroid derived from testosterone. 

Preschool children are reputed to differ from adults in their odor preferences. For instance children aged 3-4 years were as likely to like the odor of amyl acetate (banana) as synthetic sweat or feces odors. By 6 years of age, their preferences resembled adults, liking banana, and disliking sweaty and fecal odors (Stein et al., 1958). At 4-5 years of age, a shift occurs from positive or neutral to negative characterization of odors of sweat, feces, asa foetida, or butyric acid. However, it is increasingly becoming clear that responses by very young children... 

Hydrophilic— absorbs perspiration away from body and is comfortable, not sweaty... 

Adverse reactions occurring in 3% or more of patients include sedation sweaty/clammy feeling nausea vomiting dizziness vertigo dry mouth headache. 

When his blood sugar is about 55, he feels shaky and sweaty, but this goes away if he has something to eat. Which of the following changes would you recommend to his regimen ... 

For most specific anosmias the individual differences represent a concentration effect that is anosmic individuals will recognize the odor at some higher level of exposure. However, in the case of an stenone, individuals d it either unpleasant (urinous, sweaty), pleasant (floral, musky) or odorless, independent of the concentration. Surprisingly, the anosmia can be reversed in some individuals through constant exposure (57). Anosmic subjects exposed to androstenone three times per day (3 minutes) over a 6 week period became osmic to it A substantial decrease in threshold (i.e. increased sensitivity) was found for 10 of 20 subjects. 

An amateur entomologist captures a particularly excellent ladybug specimen in a plastic jar. The internal volume of the jar is 0.5 L, and the air within the jar is initially at 1 atm. The bug-lover is so excited by the catch that he squeezes the jar fervently in his sweaty palm, compressing it such that the final pressure within the jar is 1.25 atm. What is the final volume of the ladybug s prison ... 

The most important flavour compound in raw onions is thiopropanal-S-ox-ide, the lachrymatory factor [145,146]. Other important flavour compounds are 3,4-dimethyl-2,5-dioxo-2,5-dihydrothiophene and alkyl alkane thiosulfonates such as propyl methanethiosulfonate and propyl propanethiosulfonate with a distinct odour of freshly cut onions [35, 36, 147]. Various thiosulfinates that have a sharp and pungent odour may also contribute to the flavour of onions. These compounds, however, are rapidly decomposed to a mixture of alkyl and alkenyl monosulfides, disulfides and trisulfides (Scheme 7.3) of which dipropyl disulfide, methyl ( )-propenyl disulfide, propyl ( )-propenyl disulfide, dipropyl trisulfide and methyl propyl trisulfide are the most important contributors to the aroma of raw and cooked onions (Table 7.5, Fig. 7.6) [148-150]. Recently, 3-mercapto-2-methylpentan-l-ol was identified in raw and cooked onions eliciting intense meat broth, sweaty, onion and leek-like odours [142, 151]. 

In another investigation, linalool (Fig. 8.1) was detected in relatively low concentration in the solvent-extracted volatiles of fresh papaya pulp from Sri Lanka [41]. The authors attributed the characteristic sweaty note of this papaya fruit mainly to methyl butanoate. Phenylacetonitrile was also found in high amounts (17.7%), which, according to the authors, combined with lesser concentrations of benzyl isothiocyanate (1.5%) can play a role in the aroma of papaya. 

A microbial resolution of racemic 2-methylbutanoic acid was performed with a novel Pseudomonas sp. strain isolated from soil [40]. The strain was selected by screening on a medium containing racemic 2-methylbutanoic acid as the sole carbon source. The strain preferentially catabolised the fruity (S)-2-methylbuta-noic acid, thereby yielding optically pure (J )-2-methylbutanoic acid which has a distinct odour described as being cheesy, sweaty and sharp. 

As mentioned above, gas has been widely used and it is a powerful vesicant agent. In the form of vapor, it damages the respiratory tract. Eyes become temporarily blind and the skin in contact with the substance becomes inflammatory. The sweaty zones of skin are the most damaged as well as sensitive mucous membranes. If no treatment is applied, the cutaneous reaction provokes blisters full of liquid after 4-8 h. Spread in the form of particles, the gas penetrates the respiratory tract and destroys the mucous membranes with a respiration distress syndrome. Lungs suffer from emphysemae and edema due to the presence of fluids, which may cause a death similar to a drowning if the dose is too strong. 

Speeding time produced hyperactivity, tension, impatience, euphoria, sweaty palms, and reports of heightened stimulation. Slowing time produced a slowing down of rates of activity, thinking difficulties, and feelings of incompetence for... 

Case (v) A 35-year-old female had primary infertility with secondary amenorrhea, ceasation of ovarian function and uterine fibroid tumour on the posterior wall at the junction of upper one-third and lower two-third of the uterus. Symptoms Amenorrhea for the last two years, obase, sweaty palms and soles, craving for eggs, irregular menstruation earlier. 

---