Quasi-planar steep water waves

A new description for highly nonlinear potential water waves is suggested, where weak 3D effects are included as small corrections to exact 2D equations written in conformal variables. Contrary to the traditional approach, a small parameter in this theory is not the surface slope, but it is the ratio of a typical wave length to a large transversal scale along the second horizontal coordinate. A first-order correction for the Hamiltonian functional is calculated, and the corresponding equations of motion are derived for steep water waves over an arbitrary inhomogeneous quasi-1D bottom profile.Comment: revtex4, 4 pages, no figure

Translatory shock absorber for attitude sensors

A translatory shock absorber is provided for mounting an attitude sensor thereon for isolating a sensor from translatory vibrations. The translatory shock absorber includes a hollow block structure formed as one piece to form a parallelogram. The absorber block structure includes a movable top plate for supporting the attitude sensor and a fixed base plate with opposed side plates interposed between. At the junctions of the side plates, and the base and top plates, there are provided grooves which act as flexible hinges for attenuating translatory vibrations. A damping material is supported on a pedestal which is carried on the base plate between the side plates thereof. The top of the damping material rests against the bottom surface of the top plate for eliminating the resonant peaks of vibration

Numerical modeling of quasiplanar giant water waves

In this work we present a further analytical development and a numerical implementation of the recently suggested theoretical model for highly nonlinear potential long-crested water waves, where weak three-dimensional effects are included as small corrections to exact two-dimensional equations written in the conformal variables [V.P. Ruban, Phys. Rev. E 71, 055303(R) (2005)]. Numerical experiments based on this theory describe the spontaneous formation of a single weakly three-dimensional large-amplitude wave (alternatively called freak, killer, rogue or giant wave) on the deep water.Comment: revtex4, 8 pages, 7 figure

Singular maps on exotic 4-manifold pairs

We show examples of pairs of smooth, compact, homeomorphic 4-manifolds, whose diffeomorphism types are distinguished by the topology of the singular sets of smooth stable maps defined on them. In this distinction we rely on results from Seiberg-Witten theory.Comment: 17 pages, 6 figures, minor modifications following referee's comment

The Assault on Section 11 of the Securities Act: A Study in Judicial Activism

This article focuses on the federal courts\u27 restrictive interpretation of Section 11 of the Securities Act of 1933, the most investor-friendly express remedy that the New Deal Congress enacted. This judicial erosion has resulted in a cause of action that extends to fewer investors and is riddled with uncertainty at the pleading stage. The authors posit that recent federal court decisions that have added reliance as an element of Section 11 claims and rejected the use of statistical evidence to prove tracing are inconsistent with Section 11\u27s text and legislative history. The article then explores the inconsistencies associated with pleading Section 11 claims that sound in fraud by asserting that these claims should be extended the longer statute of limitations available to such fraud-based claims under the Sarbanes-Oxley Act of 2002. The authors conclude that the federal courts\u27 focus on impeding vexatious litigation has resulted in unduly restrictive judicial interpretations that have altered the very nature of Section 11

Early Expression of D-Pax2 in Drosophila Sense Organs is Controlled by a 700 Base Pair Cis-Regulatory Region

Bristles are mechanosensory organs in the Drosophila peripheral nervous system composed of four cells that adopt different fates and differentiate. These four cells (neuron, shaft, sheath, and socket) arise from a sensory organ precursor (SOP). D-Pax2 is a transcription factor necessary for the development of functional bristle cells, particularly in the differentiation of the sheath and shaft cells. This transcription factor is expressed in all four bristle cells during mitotic phases, but is then restricted to the sheath and the shaft cells during differentiation. D-Pax2 is controlled by a 3.1 KB upstream enhancer region, which can be further divided into two segments that drive early and late expression of D-Pax2 separately. The purpose of the research was to try to find the minimal regions of these enhancer segments that control D-Pax2 expression. Understanding control of D-Pax2 expression may help elucidate the mechanism of control of the mammalian homolog Pax2, which has a role in the urogenital tract, eyes, and possibly in kidney cell differentiation. This research was accomplished by cloning truncated fragments of the enhancer regions into the green fluorescent protein (GFP) reporter plasmid pH-Stinger to create transgenic flies that could be dissected and examined for GFP expression, which could be used as a readout for D-Pax2 expression. Drosophila nota were then stained with an anti-D-Pax2 primary antibody, which was detected with a secondary red fluorescence antibody. A fluorescence microscope was used to examine the occurrence of GFP in relation to D-Pax2 protein, and images were taken. Expression of GFP in fly lines bearing proximal, early enhancer fragments and distal, late enhancer fragments was greatly reduced as compared to the controls. The distal, early enhancer fragment showed a similar expression pattern to the control. It was found that this 700 BP segment was sufficient in driving early expression of D-Pax2

Extension Programming for Food Entrepreneurs: An Indiana Needs Assessment

The objective of the research reported here was to identify the needs of food entrepreneurs in the state of Indiana. To attain this objective, Purdue Extension educators from 86 counties in Indiana were surveyed. Topics of interest from the survey results included marketing, new business start-up, food regulations, and food safety. This assessment tool has directed Purdue Extension in developing a Food Entrepreneur Engagement Program. The survey results were used to develop a statewide workshop for food entrepreneurs. Resources provided by this program ultimately helped several food entrepreneurs create value-added food businesses in Indiana

An active-architecture approach to COTS integration

Commercial off-the-shelf (COTS) software products are increasingly used as standard components within integrated information systems. This creates challenges since both their developers and source code are not usually available, and the ongoing development of COTS cannot be predicted. The ArchWare Framework approach recognises COTS products as part of the ambient environment of an information system and therefore an important part of development is incorporating COTS as effective system components. This integration of COTS components, and the composition of components, is captured by an active architecture model which changes as the system evolves. Indeed the architecture modelling language used enables it to express the monitoring and evolution of a system. This active architecture model is structured using control system principles. By modelling both integration and evolution it can guide the system’s response to both predicted and emergent changes that arise from the use of COTS products.Publisher PDFPeer reviewe

Exploring the Referral and Usage of Science Fiction in HCI Literature

Research on science fiction (sci-fi) in scientific publications has indicated the usage of sci-fi stories, movies or shows to inspire novel Human-Computer Interaction (HCI) research. Yet no studies have analysed sci-fi in a top-ranked computer science conference at present. For that reason, we examine the CHI main track for the presence and nature of sci-fi referrals in relationship to HCI research. We search for six sci-fi terms in a dataset of 5812 CHI main proceedings and code the context of 175 sci-fi referrals in 83 papers indexed in the CHI main track. In our results, we categorize these papers into five contemporary HCI research themes wherein sci-fi and HCI interconnect: 1) Theoretical Design Research; 2) New Interactions; 3) Human-Body Modification or Extension; 4) Human-Robot Interaction and Artificial Intelligence; and 5) Visions of Computing and HCI. In conclusion, we discuss results and implications located in the promising arena of sci-fi and HCI research.Comment: v1: 20 pages, 4 figures, 3 tables, HCI International 2018 accepted submission v2: 20 pages, 4 figures, 3 tables, added link/doi for Springer proceedin