scholarly journals Where are the cores in this thing? …and what are they computing?

2022 ◽  
Author(s):  
Daniel Gardner

Evolution conserves components below, and goals above, the levels for circuits and computations. This work presents evidence consistent with similar evolutionary conservation of a small, possibly canonical number of circuits and computations, and cites some historical interest in this idea. Electronic circuits are examples of what we would like to know. There are several strikingly common features of nervous systems that may be both conserved and computational essential. There is always a null hypothesis, and the work acknowledges the possibility that computation itself is ad-hoc in multiple areas and nervous systems, and not itself a conserved property. But we don’t know, and we should.

2002 ◽  
Vol 66 (3) ◽  
pp. 460-485 ◽  
Author(s):  
M. Clelia Ganoza ◽  
Michael C. Kiel ◽  
Hiroyuki Aoki

SUMMARY Current X-ray diffraction and cryoelectron microscopic data of ribosomes of eubacteria have shed considerable light on the molecular mechanisms of translation. Structural studies of the protein factors that activate ribosomes also point to many common features in the primary sequence and tertiary structure of these proteins. The reconstitution of the complex apparatus of translation has also revealed new information important to the mechanisms. Surprisingly, the latter approach has uncovered a number of proteins whose sequence and/or structure and function are conserved in all cells, indicating that the mechanisms are indeed conserved. The possible mechanisms of a new initiation factor and two elongation factors are discussed in this context.


2020 ◽  
Vol 10 (6) ◽  
pp. 167 ◽  
Author(s):  
Lucía Melero García ◽  
Antonio Hernández Fernández ◽  
Eufrasio Pérez Navío

This essay is aimed at analyzing the existing relationships between oncological problems and sport in future primary education teachers. This relationship was validated and confirmed by realizing a factorial analysis using an ad hoc-created Likert scale. To come up to certain conclusions, a non-experimental, descriptive, explanatory and correlational investigation process was carried out. The instrument used to collect the data have been made through Likert scale, which was validated in contents and with an excellent Cronbach’s alpha (0.952). The validity of construct was made with factorial analysis exploratory (KMO (0.722), Bartlett (0.000), determinant (3.266E−23)). Three different samples have been taken from 900 students (years 2017–2018–2019), being 896 subjects for research. Those persons were students from the fourth year of primary education degree at University of Jaen. The Kruskal–Wallis test allows us to keep the null hypothesis and make the P of Pearson. As a conclusion, we emphasize that there is a relationship between oncological problems and sport and future primary teachers should be informed about this relationship, as well as the importance of cancer and bones tumors and their relationship with sport, the media used to train in oncological problems may be less important.


Author(s):  
Peter Auer

AbstractIn this paper, I argue that there are fundamental common features shared by interaction and grammar that suggest some kind of interdependence between the two and a nonautonomy of the language faculty; one of these fundamental common features is that of ‘projectability’. Human interaction rests on the possibility of projection; the grammars of human languages provide interlocutors with sedimentated and shared ways of organizing them.Empirical evidence for this view comes from structural homologies between action projection and grammatical projection. In particular, it is shown (on the basis of conversational examples from German) that in both cases: (1) the strength of the projective force can vary; (2) emerging gestalts can be framed by weakly projecting introductions; (3) projections can be interrupted; (4) full gestalts can be expanded; and (5) projections can be abandoned.The projectability of syntactic as well as sequence structures suggests an approach to syntax that takes into account the temporal unfolding of speech in time. It also suggests looking at the indeterminate areas between syntax and conversational structure in which the borderline between grammar and interaction can only be drawn on an ad hoc basis.


2017 ◽  
Vol 1 (2) ◽  
pp. 01-04
Author(s):  
Sonallah Ibrahim

Neuroendocrine tumors (NETs) are neoplasms that arise from cells of the endocrine (hormonal) and nervous systems. Many are benign, while some are malignant. They most commonly occur in the intestine, where they are often called carcinoid tumors, but they are also found in the pancreas, lung and the rest of the body. Although there are many kinds of NETs, they are treated as a group of tissue because the cells of these neoplasms share common features, such as looking similar, having special secretory granules, and often producing biogenic amines and polypeptide hormones.


Author(s):  
R. M. Anderson ◽  
T. M. Reith ◽  
M. J. Sullivan ◽  
E. K. Brandis

Thin films of aluminum or aluminum-silicon can be used in conjunction with thin films of chromium in integrated electronic circuits. For some applications, these films exhibit undesirable reactions; in particular, intermetallic formation below 500 C must be inhibited or prevented. The Al films, being the principal current carriers in interconnective metal applications, are usually much thicker than the Cr; so one might expect Al-rich intermetallics to form when the processing temperature goes out of control. Unfortunately, the JCPDS and the literature do not contain enough data on the Al-rich phases CrAl7 and Cr2Al11, and the determination of these data was a secondary aim of this work.To define a matrix of Cr-Al diffusion couples, Cr-Al films were deposited with two sets of variables: Al or Al-Si, and broken vacuum or single pumpdown. All films were deposited on 2-1/4-inch thermally oxidized Si substrates. A 500-Å layer of Cr was deposited at 120 Å/min on substrates at room temperature, in a vacuum system that had been pumped to 2 x 10-6 Torr. Then, with or without vacuum break, a 1000-Å layer of Al or Al-Si was deposited at 35 Å/s, with the substrates still at room temperature.


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