List of things I want to do by November 2024, 11/19 study report by Tenpu

Hello. This is Tenfu from Seito Shijuku. This time I will talk about the challenges I would like to tackle in the coming year. The academic fields are business, medicine, physics, and mathematics.

・I want to do muscle training and lift my Nbox.

・Read medical books about life.

・I want to write an article for Seito Shijuku about business and management.

・I want to play around with physics formulas.

that's all. Please note that the number may increase or decrease again.

Learning content for 2023/11/19

I read a reference book for Japanese language classes for 6th grade elementary school students. It was about the picture book ``Big Turnip.'' Teachers read these Japanese textbooks aloud on behalf of the teacher, but it is said that when reading to elementary school students, it is a good idea to have them keep in mind that they are reading with a sense of purpose. Simply reading a textbook does not leave a lasting impression on your memory; it is important to read with an awareness of the issues and a critical spirit, and I think this is important even for adults. Other articles included methods for adapting to digital teaching materials and how to make use of 100 yen whiteboards by attaching magnets to the back.

As for the book on SE, even though it is an IT book, there was information about product portfolio management (PPM) and business life cycle related to business administration. I need an explanation of this kind of theory, but I feel that it is important not only to know about it, but to try to apply it to realistic examples. Regarding PPM, there are four types of elements: star business, money tree, problem child, and loser.For example, by investing in problem child and expanding its share, it becomes a star business and the market share and financial power may increase. there is. The business life cycle is a theory that goes through the introduction stage, growth stage, maturity stage, and decline stage, from the birth of a product to its decline. Of course, there are some products that are in a period of decline but will once again enter a period of growth due to technological innovation. This is just a theory and may not apply to all cases. If you would like a more detailed explanation of PPM and the business life cycle, please start by researching it yourself. If I have a chance, I might compile it in my own way when I have time.

(*)I would like to write one report a week. I would like to focus on a theme each time and summarize my research into it in three A4 size pages.

Management strategy: The Ford Model T was produced in large quantities to reduce fixed costs per unit.

Hello. This is Tenfu from Seito Shijuku. Companies need to quickly understand customer needs. You can say that you need to be aware of what customers find inconvenient, what they would like to see improved, and what they think is important even though they are not consciously aware of it. Oh, good job! !

In business administration, the story of Ford and GM is famous. Ford came up with a way to mass produce a car called the Model T Ford. In the manufacturing industry, there is a theory called ``economies of scale,'' which states that the more a product is produced, the more fixed costs are spread out and the cost of making the product becomes cheaper .

This is also a matter of economics, but many products consist of variable costs and fixed costs. I think the realistic product price is that a reasonably large profit is added to that. Fixed costs here refer to equipment such as factories and wages of workers.

In the short term, it is difficult to enlarge the factory or raise or lower the wages of workers, so these costs are considered fixed costs. Intuitively, fixed costs are costs that would take more than a year to change. Naturally, if this fixed cost is constant, that is, if the number of human resources is constant, the fixed costs such as labor costs per unit will be lower if you produce in large quantities, i.e., if you produce 100 units rather than 50 units.

Also, variable costs are the material costs of products , etc. Basically, the material cost per unit does not change whether you produce a small quantity or a large quantity, so if you produce a large quantity, the ``total'' material cost will increase.

Total material cost = material cost per piece (variable cost) x production volume.

Just to be sure, I'll say it again: Material costs per item are variable costs, regardless of production volume. Since the production volume can be changed over a short period of time, variable costs can be considered a short-term concept.

In other words, what I'm trying to say is that by mass producing the Model T Ford, the cost per vehicle was reduced, that is, the fixed cost was reduced , so it was possible to produce a very cheap car. . However, the success of Ford's Model T car did not last long, and it was overtaken by GM.

The reason is that although the Model T car was first class in terms of cost, there was only one type of Model T car available. As a result, customer needs change. GM began selling cars with a better design than the Model T, and design became more sought after than price.

It is common for companies that have achieved great social success to stick to the same way of winning, only to be overtaken by companies that come later and offer better products. Another example is the story of Swiss watches. In the past, mechanical Swiss watches held the majority of the market share. However, it was overtaken by Epson, which released the world's first quartz wristwatch in December 1969.

Thus, it is common for a successful company to be overwritten by another. In other words, GM determined that customers needed design over low price , and Epson introduced a new technology called quartz watches to the market. Whether GM and Epson planned and executed these decisions (planned) or happened by chance (emergent), these business decisions can be thought of as business strategies.

The overriding business strategy that I think of is retail. In the past, there were greengrocers, fishmongers, and a shopping street. With the opening of large shopping malls and the emergence of convenience store franchise businesses, traditional shopping streets are no longer seen. However, shopping malls, convenience stores, and more often mentioned department stores, are about to be overtaken by online shopping.

What is inconvenient for me is the disappearance of bookstores in the city. Buying books online allows you to see a variety of books. Once a social trend moves forward, it is difficult to stop it. I still believe in the possibility of real stores that are not online . I hope many people can share in the benefits. Next time, I would like to analyze strategy and tactics. See you soon.

Buy stick coffee! ! It costs 300 yen and contains 30 sticks. Definitely good value for money. by Nada 20231117

Hello. This is Nada from Seito Medical School. Coffee is sold in a variety of products including instant, stick, and powder. Of these three types, I definitely recommend the middle one. Ikkyu-san, don't cross this bridge. This is a story about why we can't cross.

First, let's talk about the merits of our favorite stick. It's a huge upset at this point. Now, what's great about Stick-kun is that if you go to a pharmacy or supermarket, you can buy a box of famous brand stick coffee for the price of two 500ml plastic bottles. The box was not a slim, light box, but contained 30 coffee sticks from a certain famous brand. I bought this 30-bottle, or 30 cups, worth of coffee for about 300 yen today. how is it? It's getting interesting now, isn't it?

Of course, even more affordable is definitely the powdered type of coffee, which turns out to be a great deal. However, as people who often buy powdered coffee know, while powdered coffee is convenient, it has the disadvantage that if you don't do it right, you can end up drinking endless amounts of coffee. I was also a powder coffee fan until recently, so if it weren't for the recent rush to raise prices, I think I would still be buying smaller powdered coffee.

Lastly, instant coffee has the disadvantage that it takes a long time for the coffee to drip from the pack filled with hot water. I think people today are becoming less impatient and are seeking efficiency. Also, instant food is delicious, but expensive. Once the inconveniences are overcome, I'll probably buy the instant version as well.

For now, if you have never bought stick coffee, I think it would be a good idea to consider purchasing it once. The key point is that products at pharmacies and supermarkets are often cheaper and brand-name than products at convenience stores. It's good to buy a small box of sticks as a trial, but it's time to buy it seriously! In that case, I recommend the big box of stick coffee that I bought earlier, which contains about 30 sticks.

Above all, the most expensive item at the secret boss level is the canned coffee from the vending machine, so once you get a general idea of ​​what's going on, the rest is history. However, I sometimes prepare canned coffee from a vending machine at night as a wake-up drink, so I wouldn't say it's cost-effective to simply buy it from a vending machine. As for the most delicious coffee, if it's in the same price range, the canned coffee from the vending machine would probably win. However, if you just want to get your caffeine fix, I recommend buying powdered coffee and following the dosage instructions. Lastly, just to be sure, my current favorite is stick coffee, so don't forget. See you soon.

My favorite ballpoint pen is a pen with red ink and a thickness of 0.4mm. Just saying "pen" has a lot of meaning. by Nada 20231117

This is Nada from Seito Medical School. This time we will talk about ballpoint pens. I've been using mechanical pencils since I was a child. Even at the cram school I attended when I was in middle school (the cram school from which the title of this blog is derived), I had no hesitation in choosing mechanical pencils. However, in high school I didn't study much and was absorbed in club activities, so I started writing reports to submit with a ballpoint pen from college. Since I used to write reports with a ballpoint pen, I started taking all my notes and tests with a ballpoint pen.

Ballpoint pen. Yeah. It exudes dandy. Then, as I entered the workforce, I stopped using mechanical pencils and ended up choosing ballpoint pens. As a pole penman (a name that sounds familiar overseas), I know that even just a ballpoint pen has a lot of depth. From water-based pens to oil-based pens, and even pens that can be erased with an eraser. By the way, the dark history is written in oil-based pen.

As for the thickness, the standard thickness you see at 100 yen shops is probably 0.7mm. However, if the pen has a thick lead, it is difficult to write neatly. Because the core is so thick, even the slightest misalignment can cause disaster. My favorite is a pen with a thin lead of about 0.4mm, and my recent craze has been writing notes with a red pen. It seems that there was a teacher at a certain company called Akapen Sensei, and I guess you could say that he was just enjoying the mood as an extension of that teacher.

That's why even though it is called a ballpoint pen, it has a deep meaning, and once written, it cannot be rewritten without correction fluid. When I was reading an article, it said that since you can't erase the words you write with a ballpoint pen, if you're writing in a math notebook, you can keep it as reference material, such as where you made a mistake in calculation. I remember reading that article and the only thing that came to mind was the word "huh." I guess I had never been aware of it. In any case, when it comes to ballpoint pens, there are many different types, from grip thickness to color and thickness, so I recommend that you look around at 100 yen shops. See you soon.

Take advantage of network effects! Let's support each other among bloggers and let's all win together! ! by Nada 20231117

Hello. This is Nada from Seito Medical School. If you have a hobby called blogging, you can gain a lot of experience. This is because a blog is a microcosm of society. There are people in this world who are okay with it as long as they are good with themselves. In the short term, such people may benefit, but in the long term, it seems that many of them will not be able to win.

・As long as you're good about yourself, that's fine

. ・You actively follow and like other blogs. ・When people give you something, they want to

give something back .

It's wrong to say that you don't have to do anything after that.

Blogging is just like the real world.

Everyone works together to win, and in the end you win too.

People often remember what is done to them. If you treat them badly, they may stick with you for a long time, and if you do good things, they may follow you behind your back. If he wants someone to do something for him, he needs to do something for him.

There is a saying called "Give & Take", but I think it would be a good idea to start by simply giving. In the process, you may find yourself wondering if you really need the time to spend on this type of person, even if you give and receive.

I don't like having people's expectations placed on me either, but if I can do something that exceeds their expectations, I'm sure they'll follow suit. Even if the other person likes you as a person, if you don't feed the fish you catch, it will be a bad relationship for both of you.

In the original article for Shijuku Rewrite, which was written in 2019, I once advocated on my blog that everyone should go to victory. Thanks to you, even though Seito Shijuku is now a blog that is only updated irregularly, I still receive likes every time I post an article.

I don't know if they'll like me because they remember me or if they'll like me out of kindness, but even among bloggers, I think it's very advantageous to have a stance where we all try to win together. . Other bloggers may be blog owners on other sites, but they can also be readers of your own site.

Even if other bloggers see it, it's a shame that they think it's an inside conversation. Even if your readers are bloggers, there is no doubt that they are customers who read your articles, and they are also your friends. Therefore, when you don't have many readers, your blog will grow faster if you interact with other bloggers. Of course, I would be happy if we could get along well, and I can say that I am able to cooperate with other blogs.

I would like to restart my blog again in order to reward the readers who still give me likes. If we all work together, we can win. This is a way of thinking that I didn't have when I was a student. I will also interact with other bloggers so that I can become an honorary leader of the flat residents. I would like to keep in touch with people overseas. Thank you all again for your support. Let's all go win! ! See you soon~.

Fraction tricks. I changed the name to Tempu. I don't know much about Tempu Nakamura, so I'll look into it again.

This is Tenfu from Seito Shijuku. . I changed his name to my nickname Amakaze. It may have been taken from Tempu Nakamura, but I have never read any of the books, so I would like to post my impressions after reading them again. By the way, the reason I tried to change my name to Amakaze, which I have never read before, was because I was attacked by a zombie calling myself Amakaze in a dream. Even though you were attacked, are you going to call it heaven? ? It looks like the surprised mark is shouting, but that zombie may be my future self. Maybe they will survive until they become zombies.

Today we'll be talking about interesting mechanisms of fractions. For example, suppose we have the fraction 2/9=10/45. If we look at this fraction in the combination A/B=C/D, we get A=2, B=9, C=10, D=45. 2/9=10/45=1/4.5. What happens if we turn this fraction upside down? In other words, let's rotate the previous equation by 90 degrees: B/D=A/C. 9/45=2/10=1/5, so both sides are equal. What if you rotate it 90 degrees? Since D/C=B/A, 45/10=9/2=1/4.5, and the equation holds true.

What impressed me the most during my 5 hours of research today was the discovery of the above fraction. Let's analyze fractions a little more using simple formulas.

Suppose we have a problem where (a+5)/(2a+7)=3/5. The answer to this problem is a=4, so (4+5)/(2×4+7)=9/15=3/5. What if we knew in advance that 3/5 on the right-hand side is 9/15? In that case, two equations will be created to find the very simple answer: (a+5)=9 and (2a+7)=15. Is there a way to predict the value 3/5 on the right side to be the correct ratio, 9/15?

Let's calculate this formula as is. a+5=3→a=-2, 2a+7=5→a=-1

In this case, is 3, the sum of a=-2 and a=-1, related to 9/15 and 3/5?

Let's consider one more question: a²+5a+6=0. Since (a+5)/1=(-6)/a, the numerators on both sides are a+5=-6, so a=-11, and the denominators on both sides are a=1, so the difference between the two a's is 12.

[Report] From now on, I'm planning to post my medical research results on Seito Medical School, but I'm thinking of posting my research on mathematics and other subjects here on Seito Medical School. This is Shijuku, after all. Just in case. I also plan to include the content of books related to business in this school. Thank you for your understanding. I also have an English version of my blog, so I would like to introduce it to you. See you soon~.

A/B=C/D is essentially the same formula as (A+C)/(B+D)=C/D! ? The order of mathematics is beautiful. Mathematics exists only in the human head. by Nada 20231115

Hello. This is Nada from Seito Medical School. This time it's about mathematics. When I think of mathematics, I don't know if anyone imagines an impregnable fortress, but it goes without saying that it is a very difficult subject. I have many fond memories of mathematics, and even though I was an amateur, I had been researching efficient ways to solve prime factorization.

・Mathematics is profound

・There will come a moment when it makes sense

・Maybe there really is a god of mathematics who controls the order of mathematics

・Mathematics exists only in the human head

・Knowledge of mathematics Perhaps all that remains are examples that worked well.The

order of this mathematics is beautiful.

Mathematics is deep. Mathematics is a study of assumptions, and it shines only under various conditions. For example, the integers 1, 2, 3, 4, etc. are obtained by adding the lengths of the intervals 1 one by one. 1, 1+1, 1+1+1, 1+1+1+1,...

I believe that everything in this world can be counted as 1, and that numbers such as 2, 3, and beyond do not exist. Because even if there are two cakes, they are not exactly the same in the real world. There are no two things that are the same down to the molecular or atomic level. By thinking of these as the same thing in your head and counting them, you can count different things as two or three at the atomic level.

The integer 1 is the first condition in mathematics, but I think you can add various conditions to it. If calculations under those conditions yield the same results as under another condition, then it can be said that the conditions that appear different on the surface are essentially the same.

For example, take a look at the following example: Suppose we have the formula A/B=C/D. a²+5a+6=0 becomes (a+5)/1=(-6)/a. In other words, A=(a+5), B=(1), C=(-6), D=(a). On the surface, this formula seems to mean a different formula from (A+C)/(B+D)=C/D, but it is actually calculated by substituting values ​​for A, B, C, and D. When I tried...

(a+5-6)/(1+a)=(-6)/(a)

(a-1)/(1+a)=(-6)/(a)

(a-1)a=(-6)(1+a)

a²-a=-6-6a

a²+5a+6=0

In other words, although on the surface they should have been different formulas, they were essentially the same formula. Here, what conditions are required to find a? Probably AD=BC rather than A/B=C/D, so if we can find an expression like A+D=B+C, Variable a can be solved.

However, it is a formula close to A+D=B+C, so it turns out that finding the "correct formula" is not easy. Even if you simply substitute numerical values ​​for A, B, C, and D, if the right and left sides are not equal, the formula is incorrect.

A/B=C/D is essentially the same formula as (A+C)/(B+D)=C/D. Because they are the same formula, the order of mathematics worked, and when we rearranged both formulas, we were able to derive the formula a²+5a+6=0. In this way, the knowledge of mathematics as an academic subject may be limited to well-written examples.

That is why we can say that order in mathematics is beautiful. If the equations follow order, in this case, essentially the same equations will yield the same result. I would like to conclude with a simple conclusion: perhaps there is a god of numbers in the science of mathematics, and that he controls the order. May the gods of mathematics smile on you. See you soon.