English: meaning of purlieu

Tutoring English, short, uncommon words are always interesting. The tutor mentions purlieu.

purlieu (noun):

the region beyond a place; the surroundings of a city or town.


Barber, Katherine, et al. Oxford Canadian Dictionary of Current English. Don Mills: Oxford University Press, 2005.

Mish, Frederick C. Merriam-Webster Dictionary. Springfield: Merriam-Webster, 2004.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Health: does stress cause insulin resistance?

Self-tutoring about health: the tutor looks to connect stress with insulin resistance.

Insulin resistance refers to the condition that cells no longer respond to insulin as readily as before, so the body releases more.

Apparently, insulin resistance can be augmented by stress.





Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Weight loss: does dietary fat help burn fat?

Self-tutoring about diet and weight loss: the tutor investigates the idea that eating fat helps burn fat.

Although the idea that eating fat helps fat loss might seem surprising, it’s apparently valid, provided the eater subtracts carbohydrates to accommodate increased fat intake.

A few reasons are proposed for why eating fat (rather than carbohydrates) can help lose fat:

  1. Eating fat can increase the rate at which the body burns calories.
  2. Eating fat for energy, rather than carbohydrates, decreases insulin levels. Higher insulin levels prevent fat burning, while low levels of it promote fat burning.
  3. Your predominant energy food becomes the one your body predominantly runs on. If it’s fat, your body’s hormones adjust to use it – both incoming and stored.

It could be mentioned here that some fats are better than others. I’ve come to believe that trans fats are to be avoided. (I also try to avoid processed snacks.) However, whether fat is dairy or vegetable oil matters little to me. Some people have more specific opinions.




Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Sciences: what is a cross-sectional study?

Tutoring science, you might encounter experimental design. The tutor mentions the idea of a cross-sectional study.

cross-sectional study:

Let’s imagine a characteristic of interest, C.

In its simplest form, a cross-sectional study will select two groups – group A with characteristic C, and group B without it. Then, the investigators will measure other characteristics of the groups, wondering if the presence or absence of the others is connected with the lack or presence of C.

Except for the absence or presence of C, the members of groups A and B will be similar.


Carlson, Neil R. Discovering Psychology. Needham Heights: Allyn and Bacon, 1988.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Canadian culture: Jane Siberry: One More Colour

Self-tutoring about Canadian culture: the tutor reflects on a memorable Canadian 80s hit.

Jane Siberry is a Canadian music artist. Perhaps she began in ’81 or before, but I know of her because of a single hit from the 1980s: “One More Colour” from her 1985 album The Speckless Sky.

I remember hearing “One More Colour” when I was fifteen. It called me back to a childhood that I’d glimpsed, but was losing. Its lyrics hint at life in Canada:

A basket of apples by the back door, beneath the sweater pegs
The autumn leaves lift along the street….

-Jane Siberry, “One More Colour”

“One More Colour”‘s dreamy, bouncy melody draws the listener into contemplation. It’s catchy, yet intriguing – I can’t think of a similar song. Underneath, Jane starts by asking, “Is it lasting?”

“One More Colour”‘s meaning seems difficult for me to decode, while its tone seems to ask, “Why worry?” It’s mysterious, yet somehow reassuring.

I can’t recall any of my friends mentioning “One More Colour”, yet I saw the video on TV. Truly, I think it’s catchier than some 80s hits that receive more attention.

That part of my life passed quickly, but I never forgot “One More Colour”, half of whose video I caught on my way out to catch the bus when I was a kid of fifteen. I knew I must, eventually, listen to the whole song. Now, thanks to the internet, you can, too:)




Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Health: mistaking thirst for hunger

Self-tutoring about cues: the tutor looks into possible confusion between hunger and thirst.

Apparently, feeling thirsty but thinking it means hunger, really happens.

The advice I’ve read to prevent hazard from the confusion:

  1. Drink water throughout the day. Then, you might not develop thirst, since you’ll prevent it.

  2. If you feel hungry, but haven’t drunk water in a while, drink some water first, then wait. If the hunger persists, and you indeed know you’re awhile since eating, likely you really are hungry.





Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Biology: final products of fat digestion

Tutoring Biology 12, digestion is covered. The tutor mentions the products of fat digestion.

Dietary fat is finally digested into glycerol and fatty acids, which can enter the absorptive cells of the small intestine.


Mader, Sylvia S. Inquiry into Life, 9th ed. Toronto: McGraw-Hill, 2000.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Nutrition: glycemic index of vegetable oil

Self-tutoring about glycemic index: the tutor mentions the glycemic index of vegetable oil.

Since it doesn’t contain carbohydrate, the glycemic index of vegetable oil is zero.




Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

Tree identification: sweetgum, part II

Self-tutoring about local trees: the tutor mentions the sweetgum for the second time.

Back on September 15, 2015, I noted a sweetgum tree in Campbell River. Its star-shaped leaves were how I identified it.

Yesterday, I saw one without leaves and didn’t recognize it as a sweetgum. After some research I discovered its numerous spiky fruits, still present after its leaves have fallen, tell that it is, indeed, a sweetgum. This one isn’t big like others I’ve seen, but seems prosperous enough, given the many dozens of fruit hanging from it. I saw it down in Parksville.


4-H Forest Resources

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.