Thursday, April 9, 2020

The book, "The Power of Joy" is your guide to self betterment



Success is never arbitrary. Our continuously changing world challenges our determination every day. Achievement requires adherence to goals, and the ability to take risks and overcome mistakes. Self-betterment is the ticket not only to a better job but to be successful at it. Changing the mind/brain is like conquering a mountain. Sudden shifts in attitude, behavior, and disposition are challenging and often painful. There is safety in slow, persistent progress. When you trust in the long-term results of your work, you can find balance and satisfaction.

Trying to avoid change is our shared human fallacy. We tend to face difficulties only when a crisis hits and the change cannot be put off. We often solve our problems when we are literally close to disaster. Becoming proactive in your approach to life transforms you from a passive to an active and purposeful participant.   

Finding and accomplishing a purpose-driven life is the highest achievement, and it is possible for everyone. "The Power of Joy" introduces techniques for self-betterment. These methods can be practiced by anyone, at any age, and from any cultural, religious, or social background. When you change, you change the world. 
My straightforward handbook, The Power of Joy, gives you the tools and advice you need to become the best version of yourself. 

What if Amazon took Sprint's place as the US's fourth wireless ...                         Online Bookstore: Books, NOOK ebooks, Music, Movies & Toys ...                                   
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Sunday, April 5, 2020

Are quantum processes relevant in photosynthesis?


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What is "quantum biology"? It is the study of quantum effects in complex biological systems. These studies have a history stretching back to the early years of quantum mechanics. During photosynthesis, light-harvesting occurs on time scales of tens of microseconds. The couplings between the constituents and interaction with the bath will govern the dynamics of the system

Photosynthetic pigments are held up by a protein scaffold. When interacting with light, the pigments do not act as independent units because the transition energies and oscillator strength are distributed within the scaffold. The resulting collective excitations are called "excitons." Coherence is a certain degree of spatial delocalization of the excitations in the system. Excited superpositions evolve in time as damped oscillations with a frequency corresponding to the constituent states' energy difference. It is widely accepted in science that the dephasing of any interexciton (the shared exitation of complexes) coherences results in sub–100-fs (femtosecond) decay times at room temperature. Energy transfer within the complex is impossible during such a short time. The reaction center of the photosystem shows similarly fast electronic decoherence rates.

The incoherent relaxation between exciton states forms energy transport with downhill in energy. Since these exciton states are partially localized, this relaxation corresponds to hopping between different regions of the complex. The variable site energies direct the energy flow, automatically providing a definite directionality for the transport.

The inhomogeneous charge distribution in the light-harvesting protein complex leads to varying site energies of the pigments. The effect directs the excitation energy toward the reaction center. Suppressed correlations in site energy fluctuations lead to an efficient dissipation of the excess energy of excitons. The absence of long-lived interexciton coherence on relevant time scales makes quantum occurrences impossible. 

In conclusion, photosynthesis occurs on the fastest possible time scales. The dephasing of coherences in biological conditions is too instantaneous to contribute significantly to the light-harvesting function. Are quantum processes relevant in photosynthesis? Quantum coherence in photosynthetic light-harvesting is unlikely. 


Read the whole article: Quantum biology revisited


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