Birds and places: What the lexicon reveals about multilingualism

Aims and objectives: The paper describes the current multilingual language ecology and explores two subdomains of the lexicon in order to infer information about the extent and nature of multilingualism in the past. Methodology: The paper employs quantitative and qualitative analysis of a sociolinguistic questionnaire in the first part. The second part includes a qualitative analysis of lexemes in the domains of bird names and plant names, and then compares them with old ethnographic sources as well as recent information on the surrounding languages. Data: The data of this study come from original fieldwork by the author in the village of Rouku and surrounding villages collected between 2010 and 2016. It is supplemented by material from colleagues working on related languages (Evans, Kashima and Siegel). Findings: The method suggests that the type of multilingualism that was practiced in the past is similar to today. Originality: The study is novel in providing a description of multilingualism from the Southern New Guinea area. Moreover, it advances a lexicographic and ethnographic approach in reconstructing the past state of a language ecology. Implications: The main conclusion is that in the absence of written historical sources – a problem that one is almost always facing in New Guinea – it is possible to extrapolate from the lexicon of Komnzo to a past state of the local language ecology. Limitations: The method does not allow for dating the point in time for which the inferences can be made.

Long time behavior of higher-order delay differential equation with vanishing proportional delay and its convergence analysis using spectral method

<abstract> <p>Delay differential equations (DDEs) are used to model some realistic systems as they provide some information about the past state of the systems in addition to the current state. These DDEs are used to analyze the long-time behavior of the system at both present and past state of such systems. Due to the oscillatory nature of DDEs their explicit solution is not possible and therefore one need to use some numerical approaches. In this article, we developed a higher-order numerical scheme for the approximate solution of higher-order functional differential equations of pantograph type with vanishing proportional delays. Some linear and functional transformations are used to change the given interval [0, T] into standard interval [-1, 1] in order to fully use the properties of orthogonal polynomials. It is assumed that the solution of the equation is smooth on the entire domain of interval of integration. The proposed scheme is employed to the equivalent integrated form of the given equation. A Legendre spectral collocation method relative to Gauss-Legendre quadrature formula is used to evaluate the integral term efficiently. A detail theoretical convergence analysis in L_∞ norm is provided. Several numerical experiments were performed to confirm the theoretical results.</p> </abstract>

Commune sepulcrum

In Roman literature, Troy appears as a locus memoriae on several occasions. As a locus memoriae is an image of a location’s past state, it inevitably recalls that past state’s absence in the present. Troy as a literary locus memoriae recalls its own present absence, that it is only a ruin, or – according to Lucan – even less than a ruin. In this context, a literary phenomenon, i. e. the depiction of Troy being the equivalent of the absence of/or the grief for the loss of something or somebody can later be traced in the Roman poetry. Catullus, mourning his brother’s death at Troy, calls the city the common grave (commune sepulcrum) of Asia and Europe in his carmen 68. Regarding Troy, several complex allusions can be noticed in Vergil’s Aeneid recalling both Catullus 68 and 101, the two poems that are in both thematic and intertextual connection with each other. The purpose of the present study is to examine – by means of analysing the above mentioned intertexts – what kind of special locus memoriae Troy becomes in the Aeneid. This will be of crucial importance to observe the way Troy later appears in Lucan’s Bellum Civile.

FumeBot: A Deep Convolutional Neural Network Controlled Robot

This paper describes the development of a convolutional neural network for the control of a home monitoring robot (FumeBot). The robot is fitted with a Raspberry Pi for on board control and a Raspberry Pi camera is used as the data feed for the neural network. A wireless connection between the robot and a graphical user interface running on a laptop allows for the diagnostics and development of the neural network. The neural network, running on the laptop, was trained using a supervised training method. The robot was put through a series of obstacle courses to test its robustness, with the tests demonstrating that the controller has learned to navigate the obstacles to a reasonable level. The main problem identified in this work was that the neural controller did not have memory of past actions it took and a past state of the world resulting in obstacle collisions. Options to rectify this issue are suggested.

An Architecture for Mobile Outdoors Augmented Reality for Cultural Heritage

In this paper, we present the software architecture of a complete mobile tourist guide for cultural heritage sites located in the old town of Chania, Crete, Greece. This includes gamified components that motivate the user to traverse the suggested interest points, as well as technically challenging outdoors augmented reality (AR) visualization features. The main focus of the AR feature is to superimpose 3D models of historical buildings in their past state onto the real world, while users walk around the Venetian part of Chania’s city, exploring historical information in the form of text and images. We examined and tested registration and tracking mechanisms based on commercial AR frameworks in the challenging outdoor, sunny environment of a Mediterranean town, addressing relevant technical challenges. Upon visiting one of three significant monuments, a 3D model displaying the monument in its past state is visualized onto the mobile phone’s screen at the exact location of the real-world monument, while the user is exploring the area. A location-based experience was designed and integrated into the application, enveloping the 3D model with real-world information at the same time. The users are urged to explore interest areas and unlock historical information, while earning points following a gamified experience. By combining AR technologies with location-aware and gamified elements, we aim to promote the technologically enhanced public appreciation of cultural heritage sites and showcase the cultural depth of the city of Chania.

Carl Schmitt's State and Constitutional Theory

This book analyzes Carl Schmitt’s state and constitutional theory and shows how he conceived it in response to the Weimar crisis. Schmitt modeled his theory on past state theory, particularly Hobbes’ Leviathan. Schmitt sought to address the unique problems posed by mass democracy. Extremists recognized a path to legal revolution lay in the constitution’s combination of democratic procedures, total neutrality toward political goals, and positive law. To prevent the subversion of the state and civil war, Schmitt theorized ways to depoliticize conflicts and restore the state’s authority. He argued the constitution imposed absolute limits on democratic will. And he insisted those limits were determined by the liberal democratic constitution’s prior commitment to basic rights. Schmitt’s state and constitutional theory remains important today because the problems he identifies within liberal democratic states have not gone away. Schmitt’s thought anticipated “constrained” or “militant” democracy, a type of constitution that guards against subversive expressions of popular sovereignty and whose mechanisms include the entrenchment of basic constitutional commitments and party bans. Although today’s political challenges are not identical to those Weimar faced, the threat of constitutional democracy committing suicide has not gone away. Liberal democrats can learn from Schmitt’s analysis and theory to address today’s challenges.

Estimating shifts in diversification rates based on higher-level phylogenies

Macroevolutionary studies recently shifted from only reconstructing the past state, i.e. the species phylogeny, to also infer the past speciation and extinction dynamics that gave rise to the phylogeny. Methods for estimating diversification dynamics are sensitive towards incomplete species sampling. We introduce a method to estimate time-dependent diversification rates from phylogenies where clades of a particular age are represented by only one sampled species. A popular example of this type of data is phylogenies on the genus- or family-level, i.e. phylogenies where one species per genus or family is included. We conduct a simulation study to validate our method in a maximum-likelihood framework. Further, this method has already been introduced into the Bayesian package M r B ayes , which led to new insights into the evolution of Hymenoptera.