Genetic similarities and phylogenetic analysis of Muntjac (Muntiacus spp.) by comparing the nucleotide sequence of 16S rRNA and cytochrome B genome

This study aimed to identify the phylogenetic similarities among the muntjac (Muntiacus spp.). The phylogenetic similarities among seven major muntjac species were studied by comparing the nucleotide sequence of 16s rRNA and cytochrome b genome. Nucleotide sequences, retrieved from NCBI databases were aligned by using DNASTAR software. A phylogenetic tree was created for the selected species of muntjac by using the maximum likelihood method on MEGA7 software. The results of nucleotide sequences (16s rRNA) showed phylogenetic similarities between, the M. truongsonensis and M. rooseveltorum had the highest (99.2%) while the lowest similarities (96.8%) found between M. crinifrons and M. putaoensi. While the results of nucleotide sequences (Cty b) showed the highest similarity (100%) between M. muntjak and M. truongsonensis and the lowest s (91.5%) among M. putaoensis and M. crinifrons. The phylogenetic tree of muntjac species (16s rRNA gene) shows the main two clusters, the one including M. putaoensis, M. truongsonensis, M. rooseveltorum, and M. muntjak, and the second one including M. crinifrons and M. vuquangensis. The M. reevesi exists separately in the phylogenetic tree. The phylogenetic tree of muntjac species using cytochrome b genes shows that the M. muntjak and M. truongsonensis are clustered in the same group.

Engraving Accuracy in Early Modern England

The book traces major concepts including: the creation of the visual effects of accuracy through careful action and training; the development of visual judgment and connoisseurship; the role of a network in the production of knowledge; balancing readers’ expectations with representational conventions; and the effects of acts of collecting on the creation and circulation of knowledge. On the one hand, this study uncovers that approaches to knowledge production were different in the seventeenth century, as compared with in the twenty-first century. On the other, it reveals how the early modern struggle to sort through an overwhelming quantity of visual information - brought on by major changes in image production and circulation - resonates with our own.

Educational Robotics and Attention to Diversity: A Case Study

<p style="text-align: justify;">In this study we focus our research on the case analysis of an eleven-year-old boy and his close relationship with technology, specifically robotics. The methodology of the study is experimental in nature, with the aim of improving the subject's attention span through robotics, thereby favouring his educational process and, consequently, his overall development. To this end, the attitudes, and aptitudes that this technological tool has provided the subject with are evaluated over a period of four years. Three data collection instruments were selected: questionnaire, interview, and observation. Among the conclusions we highlight, on the one hand, that the older the age and the greater the interest in robotics, the greater the individual's attention span and greater psychomotor coordination, increasing the improvement in the educational process and in their daily life. On the other hand, robotics is an effective way of orienting knowledge towards the personal and educational sphere and can provide advantages in integral development. </p>

Computing Graph Neural Networks: A Survey from Algorithms to Accelerators

Graph Neural Networks (GNNs) have exploded onto the machine learning scene in recent years owing to their capability to model and learn from graph-structured data. Such an ability has strong implications in a wide variety of fields whose data are inherently relational, for which conventional neural networks do not perform well. Indeed, as recent reviews can attest, research in the area of GNNs has grown rapidly and has lead to the development of a variety of GNN algorithm variants as well as to the exploration of ground-breaking applications in chemistry, neurology, electronics, or communication networks, among others. At the current stage research, however, the efficient processing of GNNs is still an open challenge for several reasons. Besides of their novelty, GNNs are hard to compute due to their dependence on the input graph, their combination of dense and very sparse operations, or the need to scale to huge graphs in some applications. In this context, this article aims to make two main contributions. On the one hand, a review of the field of GNNs is presented from the perspective of computing. This includes a brief tutorial on the GNN fundamentals, an overview of the evolution of the field in the last decade, and a summary of operations carried out in the multiple phases of different GNN algorithm variants. On the other hand, an in-depth analysis of current software and hardware acceleration schemes is provided, from which a hardware-software, graph-aware, and communication-centric vision for GNN accelerators is distilled.

Why Do Smart Contracts Self-Destruct? Investigating the Selfdestruct Function on Ethereum

The selfdestruct function is provided by Ethereum smart contracts to destroy a contract on the blockchain system. However, it is a double-edged sword for developers. On the one hand, using the selfdestruct function enables developers to remove smart contracts ( SCs ) from Ethereum and transfers Ethers when emergency situations happen, e.g., being attacked. On the other hand, this function can increase the complexity for the development and open an attack vector for attackers. To better understand the reasons why SC developers include or exclude the selfdestruct function in their contracts, we conducted an online survey to collect feedback from them and summarize the key reasons. Their feedback shows that 66.67% of the developers will deploy an updated contract to the Ethereum after destructing the old contract. According to this information, we propose a method to find the self-destructed contracts (also called predecessor contracts) and their updated version (successor contracts) by computing the code similarity. By analyzing the difference between the predecessor contracts and their successor contracts, we found five reasons that led to the death of the contracts; two of them (i.e., Unmatched ERC20 Token and Limits of Permission ) might affect the life span of contracts. We developed a tool named LifeScope to detect these problems. LifeScope reports 0 false positives or negatives in detecting Unmatched ERC20 Token . In terms of Limits of Permission , LifeScope achieves 77.89% of F-measure and 0.8673 of AUC in average. According to the feedback of developers who exclude selfdestruct functions, we propose suggestions to help developers use selfdestruct functions in Ethereum smart contracts better.

Current Trends in Research in Language Education and Applied Linguistics

It is notoriously difficult to pick up new trends in language education and applied linguistics. It is a little bit like trying to distinguish a network of footpaths in misty conditions in order to find the one that leads to the mountain top. The view is always incomplete, the ones that seem to be pointing in the right direction might veer off behind the next boulder, and the largest path with most walkers might be interrupted by a landslide, forcing people to scatter and find alternative paths. There is inevitably a belief of researchers that the path they are on is trendy and original. Only years later will this belief be dis/confirmed when a tally can be made through citation indexes of the popularity of that particular path.

From the Law of Value Debate to the One-Child Policy in China: On Accounting and Biopolitics

This article argues that the origins of the one-child policy beginning in 1980 in China, and its development into the current system of “comprehensive population management,” are to be found not in any unfolding of a statist or authoritarian logic, or within the parameters of a nominally “socialist” project, but rather in a return to a properly capitalist set of concerns and governmental techniques, the first iteration of which can be traced to the 1920s and 1930s. With regard to the broad set of economic reforms launched in the period 1979–81, it is argued that the one-child policy is absolutely continuous with other reforms across economic sectors (agricultural responsibility systems and urban enterprise reforms) and discontinuous with anything we might understand as population management in the period 1949–76. The “law of value debate” in 1979, which “resolved” a long-standing set of issues concerning national accounting, planning, and accumulation, is found to be—despite its apparently Marxist character, derivation, and vocabulary—the passage through which a capitalist developmental logic was reintroduced into Chinese governing, with significant consequences.