Structural level comparison of two basic paradigms in neural computation

Author(s):  
José R. Álvarez
Author(s):  
A. E. Vatter ◽  
J. Zambernard

Oncogenic viruses, like viruses in general, can be divided into two classes, those that contain deoxyribonucleic acid (DNA) and those that contain ribonucleic acid (RNA). The RNA viruses have been recovered readily from the tumors which they cause whereas, the DNA-virus induced tumors have not yielded the virus. Since DNA viruses cannot be recovered, the bulk of present day investigations have been concerned with RNA viruses.The Lucké renal adenocarcinoma is a spontaneous tumor which occurs in northern leopard frogs (Rana pipiens) and has received increased attention in recent years because of its probable viral etiology. This hypothesis was first advanced by Lucké after he observed intranuclear inclusions in some of the tumor cells. Tumors with inclusions were examined at the fine structural level by Fawcett who showed that they contained immature and mature virus˗like particles.The use of this system in the study of oncogenic tumors offers several unique features, the virus has been shown to contain DNA and it can be recovered from the tumor, also, it is temperature sensitive. This latter feature is of importance because the virus can be transformed from a latent to a vegetative state by lowering or elevating the environmental temperature.


2012 ◽  
Author(s):  
Ivan Wu ◽  
E. Tamim Mohammad ◽  
John Tawa ◽  
Fred Leong

2019 ◽  
Vol 16 (2) ◽  
pp. 265-271
Author(s):  
Claudia Lintner

This article analyses the relationship between migrant entrepreneurship, marginalisation and social innovation. It does so, by looking how their ‘otherness’ is used on the one hand to reproduce their marginalised situation in society and on the other to develop new living and working arrangements promoting social innovation in society. The paper is based on a qualitative study, which was carried out from March 2014- 2016. In this period, twenty semi-structured interviews were conducted with migrant entrepreneurs and experts. As the results show, migrant entrepreneurs are characterised by a false dichotomy of “native weakness” in economic self-organisation against the “classical strength” of majority entrepreneurs. It is shown that new possibilities of acting in the context of migrant entrepreneurship are mostly organised in close relation to the lifeworlds and specific needs deriving from this sphere. Social innovation processes initiated by migrant entrepreneurs through their economic activities thus develop on a micro level and are hence less apparent. Supportive networks are missing on a structural level, so it becomes difficult for single innovative initiatives to be long-lasting.


2017 ◽  
Vol 5 (3) ◽  
pp. 299
Author(s):  
Imam Kusmaryono

This study aimed to identify the proportion of diversity and suitability of narrative mathematical questions with SOLO taxonomy level and mathematical power ability. The research was conducted through quantitative descriptive. Sources of data in the forms of narrations contained in mathematics textbooks. The research procedure was conducted by making the classification and determining the percentage of the narrations based on the compatibility of SOLO taxonomy and the mathematical power ability. The results showed that, the narrative mathematical questions with uni-structural level are of 7.5%, multi-structural of 33.8%, relational of 46.6% and extended abstract of 12.1 %. In terms of compatibility of the narrative  questions were able to measure 23% reasoning aspect, 18% problem solving, 8.3% connection, 28% communication and 22.6% mathematical representation. In general, mathematics textbooks as the object of research should be revised, since they have not yet achieved the ideal alignment between SOLO taxonomy based on grade level and the objective of learning develop mathematical power


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Amir Ata Saei ◽  
Christian M. Beusch ◽  
Pierre Sabatier ◽  
Juan Astorga Wells ◽  
Hassan Gharibi ◽  
...  

AbstractDespite the immense importance of enzyme–substrate reactions, there is a lack of general and unbiased tools for identifying and prioritizing substrate proteins that are modified by the enzyme on the structural level. Here we describe a high-throughput unbiased proteomics method called System-wide Identification and prioritization of Enzyme Substrates by Thermal Analysis (SIESTA). The approach assumes that the enzymatic post-translational modification of substrate proteins is likely to change their thermal stability. In our proof-of-concept studies, SIESTA successfully identifies several known and novel substrate candidates for selenoprotein thioredoxin reductase 1, protein kinase B (AKT1) and poly-(ADP-ribose) polymerase-10 systems. Wider application of SIESTA can enhance our understanding of the role of enzymes in homeostasis and disease, opening opportunities to investigate the effect of post-translational modifications on signal transduction and facilitate drug discovery.


2021 ◽  
pp. 0092055X2110224
Author(s):  
Salvador Vidal-Ortiz

This article connects sociological analyses of race to sexuality to rethink the teaching of the sociology of sexualities. Through the use of the image of the sea, I locate whiteness as a root for the challenges in current pedagogical approaches at my institution, knowing that it is merely an example of multiple others facing similar problems at the structural level. Using autoethnography as a method to illustrate personal experiences in the classroom and the institution, I engage in two interrelated topics that structure this article. First, I explore how teaching sexualities studies from a sociological angle requires teaching about power. In the second part, I delve into how a neoliberal engagement with individualism and students’ singular social location influence the potential in students’ learning. The discussion and concluding parts propose thinking through some of the previous teaching on the sociology of sexualities to create it anew.


2021 ◽  
pp. 1-12
Author(s):  
Samuel Thoma ◽  
Isabelle Schwänzl ◽  
Laura Galbusera

Classical and contemporary phenomenological approaches in psychiatry describe schizophrenia as a disorder of common sense and self-affection. Although taking into account intersubjectivity, this conceptualization still puts forward an individualistic view of the disorder, that is, the intersubjective deficit resides within the person. To overcome such individualism, in this article, we first propose that schizophrenic experience might be understood as arising from a dialectic relation between the self’s loss of openness to the world and the world’s loss of openness to the self. To show the relevance of social factors at the onset of schizophrenic experience, we propose a phenomenological analysis of trigger situations. In the second and main part of this article, we then focus on the implications of these phenomenological insights for the clinical practice: we argue that if schizophrenia is understood as a loss of openness between self and social world, psychiatric institutions should be transformed into spaces that enable a reopening of selves. We first describe <i>enclosing</i> phenomena such as coercive treatment to then, in contrast, present particular forms of <i>open psychiatric spaces</i> such as open door approaches and open dialogue. Besides the institutional-structural level, we also highlight aspects of openness at the intersubjective level of the individual agents, thus particularly emphasizing the role of an open therapeutic stance. We thus speak of (re)opening <i>selves</i> as we believe that the reopening of the patients’ self cannot but be related to and fostered by a reopening of the professionals’ self and stance. We thus argue that openness in the therapeutic stance is key to initiating the further process of recovery, which we describe as a reattunement of selves both at the bodily and narrative level. Last but not least, we sketch out possibilities for future phenomenological research on the question of psychiatric space and draw some broader societal implications.


1985 ◽  
Vol 49 (352) ◽  
pp. 335-344 ◽  
Author(s):  
A. E. S. Kemp ◽  
G. H. J. Oliver ◽  
J. R. Baldwin

AbstractPrevious studies of low-grade metamorphism in the Southern Uplands accretionary terrain indicated prehnite-pumpellyite facies/anchizone conditions developed throughout the area, except for local preservation of trench-slope sediments and an accreted seamount at zeolite facies/advanced diagenetic grade. New graptolite reflectance data are presented that show a general northward increase in temperature in the Southern Uplands. The results from two cross-strike traverses in the southern and central belts in contemporaneous sequences, using illite crystallinity, illite lateral spacing (bo) , and graptolite reflectance, indicate the development of systematic accretion-related low-grade metamorphism. Well-developed and constant anchizone conditions occur throughout the NE (Langholm) traverse, associated with common, F1 accretion-related folding and a regionally penetrative S1 cleavage. In the SW (Kirkcudbright) traverse, however, the youngest, last accreted packets are preserved at a transitional diagenetic stage and lack a penetrative S1 cleavage. Illite crystallinity, graptolite reflectance, and bo increase systematically northward through earlier accreted packets, reaching values of the NE traverse only at the northern end. The concomitant increase of bo with illite crystallinity suggests the relatively high P-low T trajectory characteristic of subduction zones. Integration of metamorphic and structural data relates increasing intensity of aceretion-related F1 folding, developmertt of S1 fabric, and onset of later fold phases to grade of metamorphism and structural level within the accretionary pile.


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