scholarly journals Current directions and future perspectives from the third Nematostella research conference

Zoology ◽  
2015 ◽  
Vol 118 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Ann M. Tarrant ◽  
Thomas D. Gilmore ◽  
Adam M. Reitzel ◽  
Oren Levy ◽  
Ulrich Technau ◽  
...  
Author(s):  
Yannick Le Louédec ◽  
Gaëlle Yven ◽  
Valéry Bastide ◽  
Yiping Chen ◽  
Gwenaëlle Delsart ◽  
...  

This chapter provides an overview on the recent advances and perspectives on content delivery networks (CDNs). After a reminder on the definition and core features of CDNs, the first section highlights their importance with quantitative illustrations. The second section identifies the various types of CDNs which have been deployed to address different markets. The growth of the CDNs has been driven primarily by video streaming. Next to media content, CDNs have evolved to deliver always more demanding social networks and applications. Security solutions are now fully integrated into CDNs and marketed as flagship products. The third, fourth, and fifth sections outline the challenges and technical evolutions of the CDNs to keep up with their customers' hunger for media content, web performance, and security. The sixth section focuses on the convergence of CDNs and clouds. The seventh section reviews the status and perspectives of different approaches for using multiple CDNs. The last section presents the current positioning and future perspectives of the CDNs in the mobile domain.


Author(s):  
Eugene Matusov ◽  
Kiyotaka Miyazaki

In September 2011 in Rome at the International Society for Cultural and Activity Research conference, Eugene Matusov (USA), Kiyotaka Miyazaki (Japan), Jayne White (New Zealand), and Olga Dysthe (Norway) organized a symposium on Dialogic Pedagogy. Formally during the symposium and informally after the symposium several heated discussions started among the participants about the nature of dialogic pedagogy. The uniting theme of these discussions was a strong commitment by all four participants to apply the dialogic framework developed by Soviet-Russian philosopher and literary theoretician Bakhtin to education. In this special issue, Eugene Matusov (USA) and Kiyotaka Miyazaki (Japan) have developed only three of the heated issues discussed at the symposium in a form of dialogic exchanges (dialogue-disagreements). We invited our Dialogic Pedagogy colleagues Jayne White (New Zealand) and Olga Dysthe (Norway) to write commentaries on the dialogues. Fortunately, Jayne White kindly accepted the request and wrote her commentary. Unfortunately, Olga Dysthe could not participate due to her prior commitments to other projects. We also invited Ana Marjanovic-Shane (USA), Beth Ferholt (USA), Rupert Wegerif (UK), and Paul Sullivan (UK) to comment on Eugene-Kiyotaka dialogue-disagreement.                The first two heated issues were initiated by Eugene Matusov by providing a typology of different conceptual approaches to Dialogic Pedagogy that he had noticed in education. Specifically, the debate with Kiyotaka Miyazaki (and the other two participants) was around three types of Dialogic Pedagogy defined by Eugene Matusov: instrumental, epistemological, and ontological types of Dialogic Pedagogy. Specifically, Eugene Matusov subscribes to ontological dialogic pedagogy arguing that dialogic pedagogy should be built around students’ important existing or emergent life interests, concerns, questions, and needs. He challenged both instrumental dialogic pedagogy that is mostly interested in using dialogic interactional format of instruction to make students effectively arrive at preset curricular endpoints and epistemological dialogic pedagogy that is most interested in production of new knowledge for students. Kiyotaka Miyazaki (and other participants) found this typology not to be useful and challenged the values behind it. Kiyotaka Miyazaki introduced the third heated topic of treating students as “heroes” of the teacher’s polyphonic pedagogy similar to Dostoevsky’s polyphonic novel based on Bakhtin’s analysis. Eugene Matusov took issue with treating students as “heroes” of teacher’s polyphonic pedagogy arguing that in Dialogic Pedagogy students author their own education and their own becoming.                Originally, we wanted to present our Dialogue on Dialogic Pedagogy in the following format. An initiator of a heated topic develops his argument, the opponent provides a counter-argument, and then the initiator has an opportunity to reply with his “final word” (of course, we know that there is no “final word” in a dialogue). However, after Eugene Matusov developed two of his heated topics, Kiyotaka Miyazaki wanted to reply to both of them in one unified response, rather than two separate replies. Jayne White, Ana Marjanovic-Shane, Beth Ferholt, and Paul Sullivan wrote commentaries about the entire exchange and these commentaries should be treated as part of our Dialogue on Dialogic Pedagogy. We hope that readers, interested in Dialogic Pedagogy, will join our heated Dialogue-Disagreement and will introduce more heated topics.


Nutrients ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 71 ◽  
Author(s):  
Mikiyasu Sakanaka ◽  
Aina Gotoh ◽  
Keisuke Yoshida ◽  
Toshitaka Odamaki ◽  
Hiroka Koguchi ◽  
...  

The infant’s gut microbiome is generally rich in the Bifidobacterium genus. The mother’s milk contains natural prebiotics, called human milk oligosaccharides (HMOs), as the third most abundant solid component after lactose and lipids, and of the different gut microbes, infant gut-associated bifidobacteria are the most efficient in assimilating HMOs. Indeed, the fecal concentration of HMOs was found to be negatively correlated with the fecal abundance of Bifidobacterium in infants. Given these results, two HMO molecules, 2′-fucosyllactose and lacto-N-neotetraose, have recently been industrialized to fortify formula milk. As of now, however, our knowledge about the HMO consumption pathways in infant gut-associated bifidobacteria is still incomplete. The recent studies indicate that HMO assimilation abilities significantly vary among different Bifidobacterium species and strains. Therefore, to truly maximize the effects of prebiotic and probiotic supplementation in commercialized formula, we need to understand HMO consumption behaviors of bifidobacteria in more detail. In this review, we summarized how different Bifidobacterium species/strains are equipped with varied gene sets required for HMO assimilation. We then examined the correlation between the abundance of the HMO-related genes and bifidobacteria-rich microbiota formation in the infant gut through data mining analysis of a deposited fecal microbiome shotgun sequencing dataset. Finally, we shortly described future perspectives on HMO-related studies.


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