CategoryHumts

This blog post examines the principles and mechanisms of photodynamic therapy, where light, photosensitizers, and oxygen interact to target specific cells, providing a detailed explanation of how selective cell death occurs.   In the early 20th century, pharmacologist Tapiner accidentally observed that protozoa stained with leucoacridine dye died when exposed to lightning. He then confirmed...

This blog post examines why market prices cannot fully capture social value due to externalities and the limitations of payment capacity, and discusses how these distortions impact modern society’s norms and resource allocation.   Classical economists advocated an objective theory of value, asserting that prices are determined by the amount of labor expended in producing goods. This...

This blog post examines how the sentimentalist perspective interprets and reconstructs David Hume’s theory of moral judgment, analyzing how the boundary between sentiment expression and factual description emerges as a central issue in moral philosophy.   Hume’s claim that deontic propositions cannot be derived from existential propositions has profoundly influenced modern moral...

This blog post examines how the concept of ambivalence, central to decolonial theory, fractures the archetypes within colonial literature and disrupts the identities of both colonizers and colonized, offering a more multidimensional understanding of its significance.   Ambivalence is one concept that has sparked significant debate in recent decolonial literary studies. Originally a...

In this blog post, we examine the limitations of spam email regulation methods and the structural problems inherent in each system. We explore how to find a balance between freedom of expression and the protection of personal rights.   Spam emails refer to mass, repetitive commercial advertising emails sent for profit. Most spam emails contain harmful pornographic material or deceptive...

This blog post explores the principles behind maintaining watermarks embedded in digital photos during editing and compression, along with the technical characteristics applied in the spatial and frequency domains.   Digital watermarking refers to the technology of invisibly embedding specific identifiers, or watermarks, into digital photos. The embedded identifier can be extracted through...

In this blog post, we examine the core argument of psychological egoism surrounding the motivation for human behavior. We also explore the basis and limitations of why this theory interprets all altruistic behavior as the pursuit of self-interest.   We praise acts of helping others or even sacrificing one’s life as altruistic. However, according to psychological egoism, altruistic acts...

This blog post examines the causes of rapidly increasing atmospheric CO₂ and the worsening climate crisis, exploring both the potential and limitations of artificial photosynthesis as a new solution gaining attention.   CO₂ is the substance that first comes to mind when we think of environmental issues like climate change and global warming. It’s easy to mistakenly view CO₂ as a...

The medical graduate school system was designed to enable talented individuals from diverse backgrounds to contribute to medicine in Korea. However, it failed to take root due to competition with medical schools, social resistance, and insufficient institutional preparation.   Introduction The medical graduate school system was implemented in Korea starting in 2005. This system was modeled...

This blog post examines the impact of accurately measuring and controlling the money supply on economic stability, explaining the importance and complexity of monetary policy.   If the money supply—meaning the total amount of money—becomes excessively large or small, it can lead to significant price fluctuations and also affect unemployment rates and interest rates. Therefore, the importance...