Nuraina

Why is the process of human sex determination governed by hormonal signals during a specific period?

This blog post scientifically examines how human sex is determined, specifically why hormonal signals during a particular stage of fetal development play a decisive role.   Human sex chromosomes consist of the X chromosome and the Y chromosome. A female egg contains only an X chromosome, while a male sperm carries either an X or a Y chromosome. Human sex is determined by whether the female...

Is human personality and behavior determined by genes or environment?

This blog post examines whether genetic or environmental factors exert a greater influence on the formation of human personality and behavior.   Curiosity about how humans are made has existed since ancient times. Advances in science and technology are gradually unraveling these mysteries. Beginning with Watson and Crick’s discovery of the double helix structure of DNA, the DNA base...

Is human altruism innate, or a strategy of the selfish gene?

This blog post examines, from a biological perspective, whether the altruistic behavior humans exhibit truly stems from nature or is a strategy evolved by the selfish gene for survival.   If angels existed and looked down upon us, how would they perceive us? How could we explain ourselves to them? It is said that one scholar, while exploring what it means to be human, sought precisely the...

How has mechanical engineering become central to our lives and future technology?

This blog post explores the essential role mechanical engineering has played in our daily lives and why it has become a core driving force for future technological advancement.   Mechanical engineering is, quite literally, the field of study dealing with engineering related to machines. This discipline is the culmination of mechanical technology developed by humanity over a long period of...

How will mechanical engineering and aerospace engineering lead future technology and industrial innovation?

This blog post explores how mechanical engineering and aerospace engineering are interconnected and will drive future technological advancement and industrial innovation.   The Department of Mechanical and Aerospace Engineering combines the departments of Mechanical Engineering and Aerospace Engineering. Mechanical engineering is a discipline that plays a central role in various industries...

How do functional fibers wick sweat away?

This blog post explores how functional fibers like Coolmax rapidly wick away sweat and maintain body temperature through their fiber structure and scientific principles.   Intense exercise leading to heavy sweating can soak clothing, reducing its functionality. The damp feeling may cause discomfort, and the weight of sweat can hinder an athlete’s performance. This not only lowers...

Why are interest rates determined by the market, yet the government adjusts the benchmark rate?

Interest rates are determined by market supply and demand, but the government adjusts the benchmark rate to regulate the economy. Why is this system in place? This article explains the difference between market interest rates and the benchmark rate, the government’s role, and how interest rates impact the economy in simple terms.   The Role of Market Interest Rates and the Benchmark...

Why is the doctrine of piercing the corporate veil frequently applied in small businesses, and what are its implications?

In small businesses, the distinction between the corporation and the individual often becomes blurred, leading to frequent application of the doctrine of piercing the corporate veil. This significantly impacts the transparency of business operations and fair trade practices, necessitating clear standards to ensure legal certainty.   The capacity to be the subject of rights and obligations is...

Why is national debt repaid despite weak enforcement mechanisms?

This blog post examines why national debt is repaid despite limited enforcement tools. It explores the actual drivers behind national debt fulfillment through various economic hypotheses and empirical studies.   Private debt contracts are enforced by courts. If a company refuses to repay its debts, court proceedings can lead to forced asset sales or liquidation. But what about sovereign debt...

What can we learn from Google’s successful teams and leadership, and the Aristotle Project?

Google’s ‘Aristotle Project’ is a study exploring the secrets of top-performing teams and leadership. We learn about the importance of psychological safety and teamwork.   Google’s Aristotle (The Secrets of High-Performing Teams and Team Leaders) Respected business leaders like Kazuo Inamori, the honorary chairman of Kyocera and often called the living god of management, demand...