ترغب بنشر مسار تعليمي؟ اضغط هنا

Evolution beyond natures laws

79   0   0.0 ( 0 )
 نشر من قبل Kai Xu
 تاريخ النشر 2021
  مجال البحث فيزياء
والبحث باللغة English
 تأليف Kai Xu




اسأل ChatGPT حول البحث

To understand the upper limits or potentials of metabolism, the theory of evolution needs to be defined from the mathematical and physical points of view. In this study, we proposed that life is a self-reproducing and self-accelerating open chemical system. Cell membrane and division are not necessary for life. Being alive is a status that life competes for energy and matters through complex metabolism. Evolution is the dynamic performance of life system. According to the scales of life activities, this study roughly classified life activities at the molecular, cellular, individual, ecological, and biogeochemical (atomic) levels, and summarized several new orders or laws which have been introduced with the increase of level, and analyzed the relationship between these laws and the evolution from simple to complex. Then we proposed a concept, that is, life not only obeys the mathematical and physical laws, but also evolves complex and ingenious methods to gradually use or avoid or even against the effects of natures laws on life activities. To survive in a complex and changing environment, organisms significantly influence themselves at all five levels of life activities, and the whole biosphere can be considered as a huge feedback loop. The accelerated development of human civilization indicates that the feedback loop runs faster and faster. Based on previous studies and the present study, we propose that feedback regulation constantly drives the evolution of organisms due to the limitations of metabolism in a complex and changing environment.

قيم البحث

اقرأ أيضاً

61 - Andres Escala 2017
Meaningful laws of nature must be independent of the units employed to measure the variables. The principle of similitude (Rayleigh 1915) or dimensional homogeneity, states that only commensurable quantities (ones having the same dimension) may be co mpared, therefore, meaningful laws of nature must be homogeneous equations in their various units of measurement, a result which was formalized in the $rm Pi$ theorem (Vaschy 1892; Buckingham 1914). However, most relations in allometry do not satisfy this basic requirement, including the `3/4 Law (Kleiber 1932) that relates the basal metabolic rate and body mass, which it is sometimes claimed to be the most fundamental biological rate (Brown et al. 2004) and the closest to a law in life sciences (West & Brown 2004). Using the $rm Pi$ theorem, here we show that it is possible to construct a unique homogeneous equation for the metabolic rates, in agreement with data in the literature. We find that the variations in the dependence of the metabolic rates on body mass are secondary, coming from variations in the allometric dependence of the heart frequencies. This includes not only different classes of animals (mammals, birds, invertebrates) but also different exercise conditions (basal and maximal). Our results demonstrate that most of the differences found in the allometric exponents (White et al. 2007) are due to compare incommensurable quantities and that our dimensionally homogenous formula, unify these differences into a single formulation. We discuss the ecological implications of this new formulation in the context of the Malthusians, Fenchels and the total energy consumed in a lifespan relations.
56 - H. Nagahiro , K. Nawa , S. Ozaki 2011
We develop a practical method to analyze the mixing structure of hadrons consisting of two components of quark-composite and hadronic composite. As an example we investigate the properties of the axial vector meson a1(1260) and discuss its mixing pro perties quantitatively. We also make reference to the large Nc procedure and its limitation for the classification of such a mixed state.
Compared to imaging in the visible and near-infrared regions below 900 nm, imaging in the second near-infrared window (NIR-II, 1000-1700 nm) is a promising method for deep-tissue high-resolution optical imaging in vivo mainly due to the reduced scatt ering of photons traversing through biological tissues. Herein, semiconducting single-walled carbon nanotubes with large diameters were used for in vivo fluorescence imaging in the long-wavelength NIR region (1500-1700 nm, NIR-IIb). With this imaging agent, 3-4 um wide capillary blood vessels at a depth of about 3 mm could be resolved. Meanwhile, the blood-flow speeds in multiple individual vessels could be mapped simultaneously. Furthermore, NIR-IIb tumor imaging of a live mouse was explored. NIR-IIb imaging can be generalized to a wide range of fluorophores emitting at up to 1700 nm for high-performance in vivo optical imaging.
We show that some tripartite quantum correlations are inexplicable by any causal theory involving bipartite nonclassical common causes and unlimited shared randomness. This constitutes a device-independent proof that Natures nonlocality is fundamenta lly at least tripartite in every conceivable physical theory - no matter how exotic. To formalize this claim we are compelled to substitute Svetlichnys historical definition of genuine tripartite nonlocality with a novel theory-agnostic definition tied to the framework of Local Operations and Shared Randomness (LOSR). An extended paper accompanying this work generalizes these concepts to any number of parties, providing experimentally amenable device-independent inequality constraints along with quantum correlations violating them, thereby certifying that Natures nonlocality must be boundlessly multipartite.
Power spectral density measurements of any sampled signal are typically restricted by both acquisition rate and frequency response limitations of instruments, which can be particularly prohibitive for video-based measurements. We have developed a new method called Intensity Modulation Spectral Analysis (IMSA) that circumvents these limitations, dramatically extending the effective detection bandwidth. We demonstrate this by video-tracking an optically-trapped microsphere while oscillating an LED illumination source. This approach allows us to quantify fluctuations of the microsphere at frequencies over 10 times higher than the Nyquist frequency, mimicking a significantly higher frame rate.
التعليقات
جاري جلب التعليقات جاري جلب التعليقات
سجل دخول لتتمكن من متابعة معايير البحث التي قمت باختيارها
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا