Physics of Biology

1911 Submissions

[23] viXra:1911.0285 [pdf] submitted on 2019-11-16 10:17:04

Better Candidate for Chemotherapy

Authors: George Rajna
Comments: 41 Pages.

When the red blood cells make their tight squeeze through the lung's tiny capillaries, the nanoparticles are sheared off and taken up by lung cells with tenfold greater success than free-floating nanoparticles, and dramatically improved the survival of mice with lung cancer metastasis. [25] But a new ultrasonic method proposed by biomedical engineers from Qifa Zhou's team at the University of Southern California in Los Angeles could enable acoustic control and real-time tracking of drug release within the body. [24] A Rutgers-led team has created better biosensor technology that may help lead to safe stem cell therapies for treating Alzheimer's and Parkinson's diseases and other neurological disorders. [23]
Category: Physics of Biology

[22] viXra:1911.0276 [pdf] submitted on 2019-11-15 23:47:03

Energy, Market, Ecology and the Challenge of Civilization

Authors: V. A. Kasimov.
Comments: 7 Pages. Russian, English

Perhaps the most sinister the shadow hanging over the future of Humanity is the uncontrolled use of enormous amounts of energy. The "marriage union" of the market with energy is able to create an ecological monster that will "devour” all life on Earth except, perhaps, prokaryotes - the original form of life.
Category: Physics of Biology

[21] viXra:1911.0271 [pdf] submitted on 2019-11-16 07:43:53

Carbon Nanotube Controlling Neural Cell

Authors: George Rajna
Comments: 66 Pages.

Researchers of the Microelectronics Research Unit (MIC) at the University of Oulu, in collaboration with Tampere University, have demonstrated that carbon nanotubes can be used to control the direction of neural cell growth. [40] Now Shulaker and his team in Department of Electrical Engineering and Computer Science, alongside researchers at Analog Devices, Inc.(ADI) also in Massachusetts USA, have taken on a series of challenges that have hampered carbon nanotube (CNT) computers since the first carbon nanotube transistors were reported in the late 1990s. [39] Scientists at Texas Heart Institute (THI) and Rice University have used biocompatible fibres made of carbon nanotubes (CNTs) as electrical bridges to restore conductivity to damaged hearts. [38]
Category: Physics of Biology

[20] viXra:1911.0253 [pdf] submitted on 2019-11-14 10:52:41

Molecular Chirality Changes

Authors: George Rajna
Comments: 22 Pages.

The researchers have generated femtosecond laser pulses, with tailor-made, temporally varying polarizations, which are themselves chiral. [17] The scientists identified a shortlist, a kind of "periodic table" of the most designable knot types, i.e. those knots that could easily self-assemble under appropriate physical and chemical conditions. [16] Scientists have now observed for the first time how diamonds grow from seed at an atomic level, and discovered just how big the seeds need to be to kick the crystal growing process into overdrive. [15] The researchers engineered diamond strings that can be tuned to quiet a qubit's environment and improve memory from tens to several hundred nanoseconds, enough time to do many operations on a quantum chip. [14] Intel has announced the design and fabrication of a 49-qubit superconducting quantum-processor chip at the Consumer Electronics Show in Las Vegas. To improve our understanding of the so-called quantum properties of materials, scientists at the TU Delft investigated thin slices of SrIrO3, a material that belongs to the family of complex oxides. [12] New research carried out by CQT researchers suggest that standard protocols that measure the dimensions of quantum systems may return incorrect numbers. [11] Is entanglement really necessary for describing the physical world, or is it possible to have some post-quantum theory without entanglement? [10] A trio of scientists who defied Einstein by proving the nonlocal nature of quantum entanglement will be honoured with the John Stewart Bell Prize from the University of Toronto (U of T). [9] While physicists are continually looking for ways to unify the theory of relativity, which describes large-scale phenomena, with quantum theory, which describes small-scale phenomena, computer scientists are searching for technologies to build the quantum computer using Quantum Information. In August 2013, the achievement of "fully deterministic" quantum teleportation, using a hybrid technique, was reported. On 29 May 2014, scientists announced a reliable way of transferring data by quantum teleportation. Quantum teleportation of data had been done before but with highly unreliable methods. The accelerating electrons explain not only the Maxwell Equations and the Special Relativity, but the Heisenberg Uncertainty Relation, the Wave-Particle Duality and the electron's spin also, building the Bridge between the Classical and Quantum Theories. The Planck Distribution Law of the electromagnetic oscillators explains the electron/proton mass rate and the Weak and Strong Interactions by the diffraction patterns. The Weak Interaction changes the diffraction patterns by moving the electric charge from one side to the other side of the diffraction pattern, which violates the CP and Time reversal symmetry. The diffraction patterns and the locality of the self-maintaining electromagnetic potential explains also the Quantum Entanglement, giving it as a natural part of the Relativistic Quantum Theory and making possible to build the Quantum Computer with the help of Quantum Information.
Category: Physics of Biology

[19] viXra:1911.0240 [pdf] submitted on 2019-11-13 11:40:36

L'évolution Des Espèces en Question

Authors: Vialla Stéphane
Comments: 4 Pages. français

Dans cet article je reviens sur les trois mécanismes qui régissent l'évolution des espèces: l'environnement de Charles Darwin, l'épigénétique de Jean baptiste Lamarck et la génétique dont l'origine tient dans les travaux de G. Mendel. Je conclus avec une proposition d'un mécanisme génétique propre supplémentaire intervenant dans l'évolution des espèces.
Category: Physics of Biology

[18] viXra:1911.0227 [pdf] submitted on 2019-11-12 10:44:29

Sound Waves Target Drugs to Tumors

Authors: George Rajna
Comments: 39 Pages.

But a new ultrasonic method proposed by biomedical engineers from Qifa Zhou's team at the University of Southern California in Los Angeles could enable acoustic control and real-time tracking of drug release within the body. [24] A Rutgers-led team has created better biosensor technology that may help lead to safe stem cell therapies for treating Alzheimer's and Parkinson's diseases and other neurological disorders. [23]
Category: Physics of Biology

[17] viXra:1911.0197 [pdf] submitted on 2019-11-11 07:46:12

DNA Signaling Pathways

Authors: George Rajna
Comments: 35 Pages.

When cells suffer DNA damage, they send out an SOS signal. When the repair crew arrives, the emergency signal is cancelled as it is no longer needed. [21] Now, in a new paper published in Nature Structural & Molecular Biology, Mayo researchers have determined how one DNA repair protein gets to the site of DNA damage. [20] A microscopic thread of DNA evidence in a public genealogy database led California authorities to declare this spring they had caught the Golden State Killer, the rapist and murderer who had eluded authorities for decades. [19]
Category: Physics of Biology

[16] viXra:1911.0196 [pdf] submitted on 2019-11-11 08:03:52

DNA Genetic Molecules

Authors: George Rajna
Comments: 37 Pages.

Biology encodes information in DNA and RNA, which are complex molecules finely tuned to their functions. [22] When cells suffer DNA damage, they send out an SOS signal. When the repair crew arrives, the emergency signal is cancelled as it is no longer needed. [21] Now, in a new paper published in Nature Structural & Molecular Biology, Mayo researchers have determined how one DNA repair protein gets to the site of DNA damage. [20]
Category: Physics of Biology

[15] viXra:1911.0195 [pdf] submitted on 2019-11-11 08:19:50

Understanding Antibiotic Synthesis

Authors: George Rajna
Comments: 39 Pages.

Researchers at McGill University's Faculty of Medicine have made important strides in understanding the functioning of enzymes that play an integral role in the production of antibiotics and other therapeutics. [23] Biology encodes information in DNA and RNA, which are complex molecules finely tuned to their functions. [22] When cells suffer DNA damage, they send out an SOS signal. When the repair crew arrives, the emergency signal is cancelled as it is no longer needed. [21]
Category: Physics of Biology

[14] viXra:1911.0191 [pdf] submitted on 2019-11-11 10:48:37

Biosensor for Stem Cells

Authors: George Rajna
Comments: 38 Pages.

A Rutgers-led team has created better biosensor technology that may help lead to safe stem cell therapies for treating Alzheimer's and Parkinson's diseases and other neurological disorders. [23] Biology encodes information in DNA and RNA, which are complex molecules finely tuned to their functions. [22] When cells suffer DNA damage, they send out an SOS signal. When the repair crew arrives, the emergency signal is cancelled as it is no longer needed. [21]
Category: Physics of Biology

[13] viXra:1911.0190 [pdf] submitted on 2019-11-11 10:56:10

Diagnostics into Your Hand

Authors: George Rajna
Comments: 40 Pages.

Handheld electrochemical sensors are part of the daily routine for millions of people with diabetes around the globe who monitor their blood sugar levels with electric glucometers. [24] A Rutgers-led team has created better biosensor technology that may help lead to safe stem cell therapies for treating Alzheimer's and Parkinson's diseases and other neurological disorders. [23]
Category: Physics of Biology

[12] viXra:1911.0172 [pdf] submitted on 2019-11-09 04:40:07

Photosynthesis by X-Ray Pules

Authors: George Rajna
Comments: 29 Pages.

In a new study, led by Petra Fromme and Nadia Zatsepin at the Biodesign Center for Applied Structural Discovery, the School of Molecular Sciences and the Department of Physics at ASU, researchers investigated the structure of Photosystem I (PSI) with ultrashort X-ray pulses at the European X-ray Free Electron Laser (EuXFEL), located in Hamburg, Germany. [14] Researchers have discovered a new role for protein vibrations in controlling the transformation of sunshine into useful energy. [13] University Professor of Applied Physics Stephen Arnold and his team at the New York University Tandon School of Engineering have made a discovery that could lead to Star Trek-like biosensor devices capable of flagging the barest presence in blood of a specific virus or antibody, or protein marker for a specific cancer; or sniffing out airborne chemical warfare agents while they are still far below toxic levels. [12]
Category: Physics of Biology

[11] viXra:1911.0124 [pdf] submitted on 2019-11-07 05:27:56

Treatment to Stroke Patients

Authors: George Rajna
Comments: 66 Pages.

Swarms of nanoparticles which are 15,000 times smaller than a pinhead may be able to deliver vital drugs to the brain, offering new hope to patients in the early stages of a stroke. [42] An international team of researchers has used nanoparticles to deliver a drug—one that previously failed in clinical trials for pain—into specific compartments of nerve cells, dramatically increasing its ability to treat pain in mice and rats. [41] MIT engineers have shown that they can enhance the performance of drug-delivery nanoparticles by controlling a trait of chemical structures known as chirality—the "handedness" of the structure. [40]
Category: Physics of Biology

[10] viXra:1911.0106 [pdf] submitted on 2019-11-06 03:35:10

Nanoparticle Drug Delivery

Authors: George Rajna
Comments: 63 Pages.

MIT engineers have shown that they can enhance the performance of drug-delivery nanoparticles by controlling a trait of chemical structures known as chirality-the "handedness" of the structure. [40] The process, developed by Nagoya University researchers in Japan, could be upscaled for manufacturing purified batches of single-wall carbon nanotubes that can be used in high-performance electronic devices. [39] Scientists at Texas Heart Institute (THI) and Rice University have used biocompatible fibres made of carbon nanotubes (CNTs) as electrical bridges to restore conductivity to damaged hearts. [38] A team of researchers from China, the U.S. and Japan has developed a way to strengthen graphene-based membranes intended for use in desalination projects-by fortifying them with nanotubes. [37] The team arrived at their results by imaging gold nanoparticles, with diameters ranging from 2 to 5 nanometres, via aberration corrected scanning transmission electron microscope. [36] Nanoparticles of less than 100 nanometres in size are used to engineer new materials and nanotechnologies across a variety of sectors. [35] For years, researchers have been trying to find ways to grow an optimal nanowire, using crystals with perfectly aligned layers all along the wire. [34] Ferroelectric materials have a spontaneous dipole moment which can point up or down. [33] Researchers have successfully demonstrated that hypothetical particles that were proposed by Franz Preisach in 1935 actually exist. [32] Scientists from the Department of Energy's SLAC National Accelerator Laboratory and the Massachusetts Institute of Technology have demonstrated a surprisingly simple way of flipping a material from one state into another, and then back again, with single flashes of laser light. [31]
Category: Physics of Biology

[9] viXra:1911.0104 [pdf] submitted on 2019-11-06 04:06:44

Nanoparticle Pain Relief

Authors: George Rajna
Comments: 64 Pages.

An international team of researchers has used nanoparticles to deliver a drug-one that previously failed in clinical trials for pain-into specific compartments of nerve cells, dramatically increasing its ability to treat pain in mice and rats. [41] MIT engineers have shown that they can enhance the performance of drug-delivery nanoparticles by controlling a trait of chemical structures known as chirality-the "handedness" of the structure. [40] The process, developed by Nagoya University researchers in Japan, could be upscaled for manufacturing purified batches of single-wall carbon nanotubes that can be used in high-performance electronic devices. [39] Scientists at Texas Heart Institute (THI) and Rice University have used biocompatible fibres made of carbon nanotubes (CNTs) as electrical bridges to restore conductivity to damaged hearts. [38] A team of researchers from China, the U.S. and Japan has developed a way to strengthen graphene-based membranes intended for use in desalination projects-by fortifying them with nanotubes. [37] The team arrived at their results by imaging gold nanoparticles, with diameters ranging from 2 to 5 nanometres, via aberration corrected scanning transmission electron microscope. [36] Nanoparticles of less than 100 nanometres in size are used to engineer new materials and nanotechnologies across a variety of sectors. [35] For years, researchers have been trying to find ways to grow an optimal nanowire, using crystals with perfectly aligned layers all along the wire. [34] Ferroelectric materials have a spontaneous dipole moment which can point up or down. [33] Researchers have successfully demonstrated that hypothetical particles that were proposed by Franz Preisach in 1935 actually exist. [32]
Category: Physics of Biology

[8] viXra:1911.0082 [pdf] submitted on 2019-11-05 04:50:18

Dietary Carbon Nanotube Fiber

Authors: George Rajna
Comments: 61 Pages.

The process, developed by Nagoya University researchers in Japan, could be upscaled for manufacturing purified batches of single-wall carbon nanotubes that can be used in high-performance electronic devices. [39] Scientists at Texas Heart Institute (THI) and Rice University have used biocompatible fibres made of carbon nanotubes (CNTs) as electrical bridges to restore conductivity to damaged hearts. [38] A team of researchers from China, the U.S. and Japan has developed a way to strengthen graphene-based membranes intended for use in desalination projects-by fortifying them with nanotubes. [37] The team arrived at their results by imaging gold nanoparticles, with diameters ranging from 2 to 5 nanometres, via aberration corrected scanning transmission electron microscope. [36] Nanoparticles of less than 100 nanometres in size are used to engineer new materials and nanotechnologies across a variety of sectors. [35] For years, researchers have been trying to find ways to grow an optimal nanowire, using crystals with perfectly aligned layers all along the wire. [34] Ferroelectric materials have a spontaneous dipole moment which can point up or down. [33] Researchers have successfully demonstrated that hypothetical particles that were proposed by Franz Preisach in 1935 actually exist. [32] Scientists from the Department of Energy's SLAC National Accelerator Laboratory and the Massachusetts Institute of Technology have demonstrated a surprisingly simple way of flipping a material from one state into another, and then back again, with single flashes of laser light. [31] Materials scientists at Duke University computationally predicted the electrical and optical properties of semiconductors made from extended organic molecules sandwiched by inorganic structures. [30]
Category: Physics of Biology

[7] viXra:1911.0060 [pdf] submitted on 2019-11-04 03:31:28

Fluorescent Probes Drug Delivery

Authors: George Rajna
Comments: 68 Pages.

Selecting the most effective molecules for drug delivery is often a trial-and-error process, but Cornell engineers are providing some precision thanks to a technique that reveals the performance of those molecules inside living cells. [45] Now, researchers at MIT and elsewhere have developed a system to deliver medical treatments that can be released at precise times, minimally-invasively, and that ultimately could also deliver those drugs to specifically targeted areas such as a specific group of neurons in the brain. [44] Gene editing technology is a technology that eliminates the underlying causes of and treats diseases by removing specific genesor editing genes to restore their normal function. In particular, CRISPR gene editing technology is now commonly used for immunotherapy by correcting the genes of immune cells to induce them to attack cancer cells selectively. [43]
Category: Physics of Biology

[6] viXra:1911.0057 [pdf] submitted on 2019-11-04 08:34:12

Spin on Life's Origin

Authors: George Rajna
Comments: 25 Pages.

This research may also enable new synthesis pathways for chiral drugs that do not require chiral molecules as inputs. [13] The conditions for life surviving on planets entirely covered in water are more fluid than previously thought, opening up the possibility that water worlds could be habitable, according to a new paper from the University of Chicago and Pennsylvania State University. [12]
Category: Physics of Biology

[5] viXra:1911.0054 [pdf] submitted on 2019-11-04 10:14:55

Protein EPR Spectroscopy

Authors: George Rajna
Comments: 53 Pages.

Biochemists can use electron paramagnetic resonance (EPR) on protein single crystals to determine the ultimate electronic structure of paramagnetic protein intermediates and investigate the relative magnetic tensor to a molecular structure. [28] Random bit sequences are key ingredients of various tasks in modern life and especially in secure communication. In a new study researchers have determined that generating true random bit sequences, classical or quantum, is an impossible mission. [27] A quantum circuit that can unambiguously test for information scrambling in an experiment could help verify the calculations of quantum computers and even shed more light on what happens to quantum information when it falls into a black hole. [26]
Category: Physics of Biology

[4] viXra:1911.0048 [pdf] submitted on 2019-11-03 02:55:47

Stretchable Stopwatch for Human Skin

Authors: George Rajna
Comments: 63 Pages.

Such human-machine interfaces are no longer science fiction, but they still have a way to go before becoming mainstream. [38] With further engineering, the vertical semiconductor-graphene-semiconductor transistor is promising for high-speed applications in future 3-D monolithic integration because of the advantages of atomic thickness, high carrier mobility, and the high feasibility of a Schottky emitter. [37] Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have new experimental evidence and a predictive theory that solves a long-standing materials science mystery: why certain crystalline materials shrink when heated. [36] In a new study now published A team of scientists are seeking to kick-start a wearable technology revolution by creating flexible fibres and adding acids from red wine. [33] An inexpensive way to make products incorporating nanoparticles-such as high-performance energy devices or sophisticated diagnostic tests-has been developed by researchers. [32] Researchers from Empa and ETH Zurich, together with colleagues from IBM Research Zurich, have recently been able to create this effect with long-range ordered nanocrystal superlattices. [31] The optical tweezer is revealing new capabilities while helping scientists understand HYPERLINK "https://phys.org/tags/quantum+mechanics/" quantum mechanics, the theory that explains nature in terms of subatomic particles. [30] In the perspective, Gabor and Song collect early examples in electron metamaterials and distil emerging design strategies for electronic control from them. [29]
Category: Physics of Biology

[3] viXra:1911.0032 [pdf] submitted on 2019-11-02 05:46:44

Controlling Cell Immune Response

Authors: George Rajna
Comments: 71 Pages.

Scientists at Tomsk Polytechnic University jointly with the University of Montana (USA) proposed a promising new material for regenerative medicine for recovery of damaged tissues and blood vessels. [44] Nanocapsules and other containers can transport drugs through a patient's body directly to the origin of the disease and release them there in a controlled manner. [43] Coupier has found that deflating and inflating microscopic shells can induce directed motion, which could, for example, be used to help target drug delivery to a tumour. [42]
Category: Physics of Biology

[2] viXra:1911.0031 [pdf] submitted on 2019-11-02 06:54:44

Tiny Swimming Donuts

Authors: George Rajna
Comments: 73 Pages.

The researchers note that "these biocompatible, 3-D printed micro swimmers would then be able to interface and manipulate biological active matter leading to the development of intelligent cell transport and therapy." [45] Scientists at Tomsk Polytechnic University jointly with the University of Montana (USA) proposed a promising new material for regenerative medicine for recovery of damaged tissues and blood vessels. [44] Nanocapsules and other containers can transport drugs through a patient's body directly to the origin of the disease and release them there in a controlled manner. [43]
Category: Physics of Biology

[1] viXra:1911.0005 [pdf] submitted on 2019-11-01 07:48:42

Conduction Through Proteins

Authors: George Rajna
Comments: 38 Pages.

In new research, Stuart Lindsay and his colleagues investigate a recently discovered feat carried out by enzymes, and most likely, all proteins. [23] An advanced imaging technique reveals new structural details of S-DNA, ladder-like DNA that forms when the molecule experiences extreme tension. [22] Histones are proteins that regulate the unwinding of DNA in the cell nucleus and the expression of genes based on chemical modifications or "marks" that are placed on their tails. [21]
Category: Physics of Biology