Dr Rajiv Desai
An Educational Blog
CELL DEATH
______________ CELL DEATH: ____________ _ The image shows webbed hand due to apoptosis abnormalities. It is important that inter-digital cell death happens otherwise a webbed limb will develop rather than a five digit limb. _ The image shows paw of a mouse embryo that has been stained with a dye that specifically labels cells that have undergone apoptosis. The apoptotic cells appear as bright green dots between the developing digits. _ As a tadpole changes into a frog, the cells in the tadpole tail are induced to undergo apoptosis; as a consequence, the tail is lost. All the changes that occur during metamorphosis, including the induction of apoptosis in the tail, are stimulated by an increase in thyroid hormone in the blood of a frog. _ The figure shows light micrograph of normal and apoptotic human leukemia cell illustrating chromatin condensation and nuclear fragmentation. _________________________________ _________________________________ Prologue: A vast […]
IMITATION SCIENCE
_ IMITATION SCIENCE: _ The figure below shows imitation jewelry resembling real jewelry but costs only rupees 788/= In the same way, imitation science resembles science but fares poorly on scientific methods: There is no evidence to show that high dose vitamins prevent cancer or cardiovascular disease and maintain good health in healthy (non-pregnant) adults. There is no evidence to show that calcium supplements prevent fractures in normal adults including post-menopausal women. Yet billions take vitamins and calcium pills recommended by doctors and/or media driven by pharmaceutical industry which displays purported scientific studies (imitation science) showing benefits of vitamins and calcium supplements. _______ Prologue: There is a Calvin and Hobbes cartoon in which Calvin poses the question to Dad: “Why does ice float?” Dad responds: “Because it’s cold. Ice wants to get warm, so it goes to the top of liquids in order to be nearer to the Sun.” […]
SCIENTIFIC PUNISHMENT FOR RAPE
____________ SCIENTIFIC PUNISHMENT FOR RAPE: ________ __________ In my article on ‘The Rape’ published on this website few years ago, I have shown that rape is the most under-reported heinous crime in the world and the best way to prevent future rape is to report present rape. The worst myth about rape is that a woman cannot be raped against her will and this myth is propagated by patriarchal society and law enforcement authorities. Rape is a crime, which has a devastating effect on the survivors; it has been described as a “beginning of a nightmare”. The aftershocks include depression, fear, guilt-complex, suicidal-action, diminished sexual interest etc.; and the victim becomes afraid of half the human race. Unfortunately, women in this world, belong to a class or group of society who are in a disadvantaged position on account of several social barriers & impediments and have therefore been victims of […]
SCIENCE OF LOVE
__________________ SCIENCE OF LOVE: _______________ In a study published in the Proceedings of the Royal Society, one researcher likened love at first sight to narcissism, because it turns out what we’re most attracted to is someone who happens to be looking at us. Again, this has evolutionary roots, as we shouldn’t spend time chasing a mate who’s not interested, but it’s narcissistic because the person we tend to look at, of course, looks like us. It’s like falling in love with your own image in the mirror as shown in the figure above. _______ Prologue: Shruti Hassan says that she is my fan. Esha Gupta wants to frustrate me. Is this love? Well, they are playing safe. If you have a reason why you love someone, it is not love. You can’t have a reason for loving someone, it just happens and you know it…..Love is an extremely […]
Economic Development vis-à-vis Environment:
Economic Development vis-à-vis Environment: _ _ Prologue: “When the last tree is cut down, the last fish eaten, and the last stream poisoned, you will realize that you cannot eat money,” Native American saying. A quote by Richard Wilkinson describes economic development as a development of more intensive ways to exploit the natural environment. We hurt the environment in more ways than you could possibly imagine. Misguided construction, irrigation and mining can deface the natural landscape and disrupt important ecological processes. Aggressive fishing and hunting can deplete entire stocks of species. Human migration can introduce alien competitors to native food chains. Greed can lead to catastrophic accidents and laziness to environmentally destructive practices. Will our children and grandchildren live in a better world, or will economic and social conditions decline? Every culture has worried over this question—often for good reason. One would think that modern man, living amid ever-rising material comforts […]
