Archive for the ‘biological’ category: Page 123
Sep 6, 2021
Emergent Bioanalogous Properties of Blockchain-based Distributed Systems
Posted by Saúl Morales Rodriguéz in categories: biological, bitcoin, chemistry, robotics/AI, space
A more general definition of entropy was proposed by Boltzmann (1877) as S = k ln W, where k is Boltzmann’s constant, and W is the number of possible states of a system, in the units J⋅K−1, tying entropy to statistical mechanics. Szilard (1929) suggested that entropy is fundamentally a measure of the information content of a system. Shannon (1948) defined informational entropy as \(S=-\sum_{i}{p}_{i}{log}_{b}{p}_{i}\) where pi is the probability of finding message number i in the defined message space, and b is the base of the logarithm used (typically 2 resulting in units of bits). Landauer (1961) proposed that informational entropy is interconvertible with thermodynamic entropy such that for a computational operation in which 1 bit of information is erased, the amount of thermodynamic entropy generated is at least k ln 2. This prediction has been recently experimentally verified in several independent studies (Bérut et al. 2012; Jun et al. 2014; Hong et al. 2016; Gaudenzi et al. 2018).
The equivalency of thermodynamic and informational entropy suggests that critical points of instability and subsequent self-organization observed in thermodynamic systems may be observable in computational systems as well. Indeed, this agrees with observations in cellular automata (e.g., Langton 1986; 1990) and neural networks (e.g., Wang et al. 1990; Inoue and Kashima 1994), which self-organize to maximize informational entropy production (e.g., Solé and Miramontes 1995). The source of additional information used for self-organization has been identified as bifurcation and deterministic chaos (Langton 1990; Inoue and Kashima 1994; Solé and Miramontes 1995; Bahi et al. 2012) as defined by Devaney (1986). This may provide an explanation for the phenomenon termed emergence, known since classical antiquity (Aristotle, c. 330 BCE) but lacking a satisfactory explanation (refer to Appendix A for discussion on deterministic chaos, and Appendix B for discussion on emergence). It is also in full agreement with extensive observations of deterministic chaos in chemical (e.g., Nicolis 1990; Györgyi and Field 1992), physical (e.g., Maurer and Libchaber 1979; Mandelbrot 1983; Shaw 1984; Barnsley et al. 1988) and biological (e.g., May 1975; Chay et al. 1995; Jia et al. 2012) dissipative structures and systems.
This theoretical framework establishes a deep fundamental connection between cyberneticFootnote 1 and biological systems, and implicitly predicts that as more work is put into cybernetic systems composed of hierarchical dissipative structures, their complexity increases, allowing for more possibilities of coupled feedback and emergence at increasingly higher levels. Such high-level self-organization is routinely exploited in machine learning, where artificial neural networks (ANNs) self-organize in response to inputs from the environment similarly to neurons in the brain (e.g., Lake et al. 2017; Fong et al. 2018). The recent development of a highly organized (low entropy) immutable information carrier, in conjunction with ANN-based artificial intelligence (AI) and distributed computing systems, presents new possibilities for self-organization and emergence.
Sep 3, 2021
Researchers use gold film to enhance quantum sensing with qubits in a 2D material
Posted by Saúl Morales Rodriguéz in categories: biological, engineering, quantum physics
Quantum sensing is being used to outpace modern sensing processes by applying quantum mechanics to design and engineering. These optimized processes will help beat the current limits in processes like studying magnetic materials or studying biological samples. In short, quantum is the next frontier in sensing technology.
As recently as 2,019 spin defects known as qubits were discovered in 2D materials (hexagonal boron nitride) which could amplify the field of ultrathin quantum sensing. These scientists hit a snag in their discovery which has unleashed a scientific race to resolve the issues. Their sensitivity was limited by their low brightness and the low contrast of their magnetic resonance signal. As recently as two weeks ago on August 9 2021, Nature Physics published an article titled “quantum sensors go flat,” where they highlighted the benefits and also outlined current shortfalls of this new and exciting means of sensing via qubits in 2D materials.
A team of researchers at Purdue took on this challenge of overcoming qubit signal shortcomings in their work to develop ultrathin quantum sensors with 2D materials. Their publication in Nano Letters was published today, September 2 2021, and they have solved some of the critical issues and yielded much better results through experimentation.
Sep 2, 2021
How Computationally Complex Is a Single Neuron?
Posted by Dan Kummer in categories: biological, robotics/AI
Computational neuroscientists taught an artificial neural network to imitate a biological neuron. The result offers a new way to think about the complexity of single brain cells.
Sep 2, 2021
Scientists discover on-off switch for bacteria that breathe electricity
Posted by Genevieve Klien in category: biological
Deep beneath the seabed, teensy bacteria “exhale” electricity through long, skinny snorkels, and now, scientists have discovered how to switch these microbes’ electric breath on and off.
Sep 2, 2021
Cat genome’s ‘dark matter’ may hold clues to our health
Posted by Quinn Sena in categories: biological, biotech/medical, cosmology, genetics
Cats have many superior genetic mutations like night vision even immunity to the current pandemic. If we can find the key to their immunity we could find a way to have near super human immunity.
“Getting a better understanding of the cat’s biology and genetic makeup will help us better understand the biology of humans, too,” says Leslie Lyons. (Credit: Lottie/Flickr)
The findings, published in Trends in Genetics, come after decades of genome DNA sequencing by Leslie Lyons, professor of comparative medicine in the University of Missouri College of Veterinary Medicine. Their cat genome assembly is nearly 100% complete.
Sep 2, 2021
ZENET is my chosen interface with MVT uploading
Posted by Steve Nichols in categories: biological, space
The game is the ORIGINAL Kabbalah imo. Here is Hymn to the 10 Bau of Amen from “The Slates of Zizyphus“
Awake being rested, May you awake in peace!
May Amen awake in life and peace.
May (name) awake in peace!
[FIRST bA] “bA in his ever-lasting flame“
Horus who is in the Nomes {districts}
Who illumines the Two Lands.
Bull who ejaculates Nun.
Who lives eternally.
In his name of Rah, Every day.
[SECOND bA] “bA in his Left Eye“
The one living of births in his left eye.
Whom everybody loves.
In his effective form of Moon.
God of hearts and minds.
Continue reading “ZENET is my chosen interface with MVT uploading” »
Sep 1, 2021
Developing Cohesive, Domestic Rare Earth Element (REE) Technologies
Posted by Saúl Morales Rodriguéz in categories: bioengineering, biological
Program aims to fortify supply chain by utilizing bioengineering approaches to facilitate REE separation and purification.
Rare Earth Elements (REEs) are a group of 17 similar metals that are critical material components of many DoD systems, including lasers, precision-guided weapons, magnets for motors, and other devices.1 Although the U.S. has adequate domestic REE resources, its supply chain is vulnerable due to dependence on foreign entities for separation and purification of these elements. “Biomining,” an approach that uses microbes to extract or separate target metals like gold or copper from a variety of sources is not yet useful for REEs because of poor specificity and selectivity of the microbes for REEs. The Environmental Microbes as a BioEngineering Resource (EMBER) program aims to leverage advances in microbial and biomolecular engineering to develop a scalable bio-based separation and purification strategy for REEs using under-developed domestic sources.
“The EMBER program will aim to fill a critical DoD supply chain gap” stated Dr. Linda Chrisey, EMBER program manager. “The program will target the development of bioengineered organisms/biomolecular approaches for REE purification, then translate these to practical biomining modules (e.g., biosorbent, biofiltration) that can be integrated with domestic REE sources.”
Continue reading “Developing Cohesive, Domestic Rare Earth Element (REE) Technologies” »
Sep 1, 2021
Interspecifics: We are a nomadic multispecies collectivity experimenting in the intersection between art and science
Posted by Jose Ruben Rodriguez Fuentes in categories: biological, science
We embrace hybridized practices among different disciplines and living organisms, open knowledge and precarity as a challenge. Our current lines of research are based in the use of sound to understa…
Sep 1, 2021
Synthetic Biology Enables Microbes To Build Muscle Fibers That Are Tougher Than Kevlar
Posted by Jason Blain in categories: bioengineering, biological
No animals were harmed in the production of the synthetic muscle fibers, which are tougher than Kevlar.
Would you wear clothing made of muscle fibers? Use them to tie your shoes or even wear them as a belt? It may sound a bit odd, but if those fibers could endure more energy before breaking than cotton, silk, nylon, or even Kevlar, then why not?
Don’t worry, this muscle could be produced without harming a single animal.