Digital Commons Network^™

Equatorial Wave–Current Interactions, Adrian Constantin, Rossen Ivanov

Articles

We study the nonlinear equations of motion for equatorial wave–current interactions in the physically realistic setting of azimuthal two-dimensional inviscid flows with piecewise constant vorticity in a two-layer fluid with a flat bed and a free surface. We derive a Hamiltonian formulation for the nonlinear governing equations that is adequate for structure-preserving perturbations, at the linear and at the nonlinear level. Linear theory reveals some important features of the dynamics, highlighting differences between the short- and long-wave regimes. The fact that ocean energy is concentrated in the long-wave propagation modes motivates the pursuit of in-depth nonlinear analysis in the long-wave …

Integrable Cosmological Model With Van Der Waals Gas And Matter Creation, Rossen Ivanov, Emil Prodanov

Articles

A cosmological model with van der Waals gas and dust has been studied in the context of a three-component autonomous non-linear dynamical system involving the time evolution of the particle number density, the Hubble parameter and the temperature. Due to the presence of a symmetry of the model, the temperature evolution law is determined (in terms of the particle number density) and with this the dynamical system reduces to a two-component one which is fully integrable. The globally conserved Hamiltonian is identified and, in addition to it, some special (second) integrals, defined and conserved on a lower-dimensional manifold, are found. …

When The Intrinsic Algebraic Entropy Is Not Really Intrinsic, Brendan Goldsmith, Luigi Salce

Articles

The intrinsic algebraic entropy ent(ɸ) of an endomorphism ɸ of an Abelian group G can be computed using fully inert subgroups of ɸ-invariant sections of G, instead of the whole family of ɸ-inert subgroups. For a class of groups containing the groups of finite rank, aswell as those groupswhich are trajectories of finitely generated subgroups, it is proved that only fully inert subgroups of the group itself are needed to comput ent(ɸ). Examples show how the situation may be quite different outside of this class.

Daylight: What Makes A Difference, M. Knoop, O. Stefani, B. Bueno, B. Matusiak, R. Hobday, A. Wirz-Justice, K. Martiny, T. Kantermann, M. Aarts, N. Zemmouri, S. Appelt, Brian Norton

Articles

Light is necessary for vision; it enables us to sense and perceive our surroundings and in many direct and indirect ways, via eye and skin, affects our physiological and psychological health. The use of light in built environments has comfort, behavioural, economic and environmental consequences. Daylight has many particular benefits including excellent visual performance, permitting good eyesight, effective entrainment of the circadian system as well as a number of acute non-image forming effects and the important role of vitamin D production. Some human responses to daylight seem to be well defined whilst others require more research to be adequately understood. …

Optimization Of Pv Powered Spd Switchable Glazing To Minimise Probability Of Loss Of Power Supply, Aritra Ghosh, Brian Norton

Articles

Suspended particle device (SPD) glazing is an electrically actuated switchable glazing. It requires alternate current (AC) power supply to switch from opaque to transparent state. To power this glazing using PV device requires inverter. Optimization of AC powered switchable SPD glazing using photovoltaic (PV) device has been evaluated using loss of power supply probability (LPSP). Electrically switchable direct current (DC) powered electrochromic glazing was also considered in this investigation as it doesn't need any inverter to couple with PV. It is concluded that behaviour of these glazings is the dominant factor in performance optimization outweighting than azimuthal orientation and inclination …

The Study Of Grit In Engineering Education Research: A Systematic Literature Review, Shannon Chance, Inês Direito, Manish Malik

Articles

Researchontheroleofgrit–definedasbothperseveranceandpassionfor long-termgoals–onhumanperformancehasbeenconductedforthepast decade. It has been suggested that this non-cognitive factor is a better predictor of students’ retention than traditional academic measures. These findings hold relevance for engineering education research but studies on this area are still scarce. This paper provides a systematic review of the current state of research on grit and its correlates in engineering higher education research. Publications were identified using three types of databases specific to engineering education; a final set of 31 relevant records was analysed by type of population, methods, research topics and main results. Most of the reviewed studies implemented quantitative methodologies to …

Adapting The Surveying Curriculum To New Dimensions Of The Profession, Fahria Masum, Reinfried Mansberger, Audrey Martin, Gerhard Navratil, Anthony Mushinge

Articles

Today the surveying profession is very different from what it was twenty years ago. Recent technological innovations, globalization, and global land-related challenges have allowed a wide range of advances in the surveying profession. The vision is to promote surveying practices that can enhance the quality of services in a variety of tracks in the land profession. According to the new adjacent professional areas and the needs of the labor market, academic courses for surveyors have to be adapted to meet the broader scope of the surveying profession and to supply highly qualified land professionals. This paper outlines the new challenges …

Segmentation Of Quantity Surveying Professional Services For Focus Strategy And Diversification, Michael Adesi, De-Graft Owusu-Manu, Frank Boateng

Articles

Purpose – Notwithstanding that numerous studies have focused on strategy in quantity surveying (QS) professional service firms, there is a paucity of investigation on the segmentation of QS professional services. The purpose of this study is to investigate the segmentation of QS services for diversification and a focus strategy formation.

Design/methodology/approach – This study adopts the positivist stance and quantitative approach in which a simple random sampling technique was used to select participants. In total, 110 survey questionnaires were administered to registered professional QS, out of which 79 completed questionnaires were returned for analysis.

Findings – The paper identifies three …

A Modified Langevin-Debye Model For Investigating The Electro-Optic Behaviour Of De Vries Smectic Liquid Crystals, Vigneshwaran Swaminathan, Vitaly Petrovich Panov, Sithara Pavithran Sreenilayam, Yuri Panarin, J. K. Vij

Articles

An external electric field applied across a planar-aligned cell in Smectic A* phase of de Vries smectic liquid crystal induces director redistribution over a cone, resulting in a substantial increase in the birefringence and the apparent optical tilt angle. Such an electro-optic response is modelled by Shen et al. [Y. Shen et al., Phys. Rev. E 88, 062504 (2013)], who modified their previous hollow cone with a diffuse cone model by introducing the molecular distribution function limited over a range of tilt angles, that lie in between θmin and θmax. The limits in these two tilt …

Molecular Memory With Downstream Logic Processing Exemplified By Switchable And Self-Indicating Guest Capture And Release, Brian Daly, Thomas S. Moody, Allen J.M. Huxely, Chaoyi Yao, Benjamin Schazmann, Andre Alves-Areias, John F. Malone, H.Q. Nimal Gunaratne, Peter Nockemann, A. Prasanna De Silva

Articles

Molecular-logic based computation (MLBC) has grown by accumulating many examples of combinational logic gates and a few sequential variants. In spite of many inspirations being available in biology, there are virtually no examples of MLBC in chemistry where sequential and combinational operations are integrated. Here we report a simple alcohol-ketone redox interconversion which switches a macrocycle between a large or small cavity, with erect aromatic walls which create a deep hydrophobic space or with collapsed walls respectively. Small aromatic guests can be captured or released in an all or none manner upon chemical command. During capture, the fluorescence of the …

Modified Surface Relief Layer Created By Holographic Lithography: Application To Selective Sodium And Potassium Sensing, Sabad-E Gul, Luke O'Neill, John Cassidy, Izabela Naydenova

Articles

Point-of-care diagnostics will rely upon the development of low-cost, noncomplex, and easily integrated systems in order to examine biological samples such as blood and urine obtained from the patient. The development of metal ion sensors is a subject of significant relevance for physiological samples. The level of different blood electrolytes, mainly H+, Na+, K+ and Cl− is considerably used to monitor irregular physiologies. The particular challenge in biosensing, and in fact for any other sensor, is signal differentiation between non-specifically bound material and the specific detecting of the target molecule/ion. The biosensors described in this paper are fabricated by a …

Highly Selective Fluorimetric Turn-Off Detection Of Copper (Ii) By Two Different Mechanisms In Calix[4]Arene-Based Chemosensors And Chemodosimeters, Justine O'Sullivan, John Colleran, Brendan Twamley, Frances Heaney

Articles

Isoxazolo‐pyrene tethered calix[4]arenes selectively detect copper(II) ions without interference from related perchlorate ions. The fluorescence emission of the probes, synthesised by nitrile oxide alkyne cycloaddition, and characterised by spectroscopic and crystallographic data, is rapidly reduced by Cu(II) ions. Detection limits are in the micromolar or sub‐micromolar range (0.3–3.6 μM) based on a 1 : 1 sensor:analyte interaction. Voltammetric behaviour and 1H NMR data provide new insights into the sensing mechanism which is dependent on the calixarene substitution pattern. When the calixarene lower rim is fully substituted, Cu(II) detection occurs through a traditional chelation mechanism. In contrast, for calixarenes 1,3‐disubstituted on …

The Modern Corporation And Private Property Revisited: Gardiner Means And The Administered Price, William Wilson Bratton

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No abstract provided.

Forgotten Statutes: Trade Law's Domestic (Re)Turn, Kathleen Claussen

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Since the first half of the twentieth century, the U.S. Congress has increasingly delegated its authority over tariffs to the U.S. president. Some of these statutes permit private actors to petition for tariff relief. Some also permit the president to initiate an investigation and subsequently to take trade-related or other action when certain criteria are met. Since the 1990s, however, a robust multilateral trading system has required the United States and others to resolve disputes over trade measures in Geneva, rather than through unilateral policy steps under these tariff authorities. In a stark departure from this movement away from unilateral …

Understanding The Complicated Landscape Of Civil War Monuments, Jessica Owley, Jess Phelps

Articles

This essay examines the controversy regarding confederate monuments and attempts to contextualize this debate within the current preservation framework. While much attention has been paid to this topic over the past year, particularly with regard to "public" monuments, such discussion has generally failed to recognize the varied and complicated property law layers involved which can fundamentally change the legal requirements for modification or removal. We propose a spectrum or framework for assessing these resources ranging from public to private, and we explore the messy space in-between these poles where most monuments actually fall. By highlighting these categories, we provide an …

The Uncertain Path Of Class Action Law, Sergio J. Campos

Articles

For the past ten terms the Supreme Court has increased its focus on the law of class actions. In doing so, the Court has revised the law to better accord with a view of the class action as an exception to an idealized picture of litigation. This "exceptional" view of the class action has had a profound impact not only on class action law, but on procedural and substantive law in general. However, in the October 2015 term the Court decided three class action cases that support an alternative, 'functional" view of the class action, one that does not view …

Sex, Lies, And Videotape: Deep Fakes And Free Speech Delusions, Mary Anne Franks, Ari Ezra Waldman

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No abstract provided.

Collected Lectures And Talks On Corporate Law, Legal Theory, History, Finance, And Governance, William Wilson Bratton

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No abstract provided.

Opportunistic Originalism And The Establishment Clause, Caroline Mala Corbin

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This Article argues that the Supreme Court's use of originalism is opportunistic because sometimes the Court relies on it, and sometimes it does not. This inconsistency is evident in two recent decisions with significant Establishment Clause consequences: Town of Greece v. Galloway (2014) and Trinity Lutheran Church v. Comer (2017). In Town of Greece, the Supreme Court applied an originalist analysis to uphold the government's policy of sponsoring predominantly Christian prayers before town meetings. In Trinity Lutheran Church, the Supreme Court failed to conduct an originalist analysis of direct government funding to churches before ordering a state to award a …

"Scientific Inference" Vs. "Legal Reasoning"? Not So Fast! ¿"Inferencia Cientifíca" Vs."Razonamiento Jurídico"? -- No Tan Rápido!, Susan Haack

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No abstract provided.

Do Me A Syntax: Doggo Memes, Language Games And The Internal Structure Of English, Jeffrey Punske, Elizabeth Butler

Articles

This paper provides a sketch of an analysis of an Internet-based language-game known as Doggo. We show that the properties of the Doggo language game illustrate the underlying syntactic structure of English—where the understood verb is derived from two separate pieces. We also provide suggestions for future research into Internet language games.

Cover Crop Benefits To Pollinators And The Agroecosystem, Casey J. Bryan, Jon E. Schoonover, Sedonia D. Sipes, Leila Kassim, David J. Gibson, Drew A. Scott, Karla Gage

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No abstract provided.

Environmental Law. Disrupted, Inara Scott, David Takacs, Rebecca Bratspies, Vasessa Casado Perez, Robin Kundis Craig, Keith Hirokawa, Blake Hudson, Sarah Krakoff, Katrina Fischer Kuh, Jessica Owley, Melissa Powers, Shannon Roesler, Jonathan Rosenbloom

Articles

The U.S. regulatory environment is changing rapidly, at the same time that visible and profound impacts of climate change are already being felt throughout the world, and enormous, potentially existential threats loom in the not-so-distant future. What does it mean to think about and practice environmental law in this setting? In this latest in a biannual series of postings and essays, the authors, members of the Environmental Law Collaborative (ELC), have taken on the question of whether environmental law as we currently know it is up to the job of addressing these threats; and, if not, what the path forward …

"Scientific Inference" Vs. "Legal Reasoning"? -Not So Fast!, Susan Haack

Articles

To understand why the interactions of science with the legal system can be so problematic, it's not enough to gesture vaguely towards a supposed contrast between scientific and legal "modes of thinking"; we need to look, instead, to the consequences of the different purposes of science and the law, the different constraints under which they pursue those purposes, and the different cultures of the two enterprises. From this perspective we can see why the law sometimes asks more of science than science can give, and sometimes gets less from science than science could give; and also why a simple dichotomy …

Third-Order Optical Nonlinearity Properties Of Cdcl2-Modifed Ge–Sb–S Chalcogenide Glasses, Xiaosong Lu, Jianhui Li, Lu Yang, Runan Zhang, Yindong Zhang, Jing Ren, Aurelian Catalin Galca, Mihail Secu, Gerald Farrell, Pengfei Wang

Articles

We developed a new type of chalcohalide glasses with physicochemical and nonlinear optical properties that are tunable by composition. It is found that more than 60 mol.% CdCl2 heavy metal halide can be dissolved into the ternary Ge–Sb–S system and forming stable glasses. The visible-light transparency range is extended to shorter wavelengths with the addition of CdCl2, which is beneficial for the optical quality control and infra-red (IR) system alignment. The third-order optical nonlinearity (TONL) is studied using the femtosecond Z-scan method. The results show that both the nonlinear refractive index and two photon absorption co-efficient decrease with CdCl2. Benefiting …

The Rule Of Law Collaborative: A Center Of Practical, Interdisciplinary Research, And Engagement On Pressing Rule Of Law Issues Around The World, Joel H. Samuels

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No abstract provided.

Drawing Trump Naked: Curbing The Right Of Publicity To Protect Public Discourse, Thomas E. Kadri

Articles

From Donald Trump to Lindsay Lohan to Manuel Noriega, real people who are portrayed in expressive works are increasingly targeting creators of those works for allegedly violating their "right of publicity "-a state-law tort that prohibits the unauthorized use of a person's name, likeness, and other identifying characteristics. Intuitively, we might feel confident that Mark Zuckerberg should not be able to block his portrayal in The Social Network movie, that Marilyn Monroe could not have stopped Andy Warhol from exhibiting his vibrant paintings, that O.J. Simpson could not have demanded money from FX to air the American Crime Story docudrama. …

Christian Legislative Prayers And Christian Nationalism, Caroline Mala Corbin

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No abstract provided.

Nonparticipation And Perceptions Of Legitimacy, Bernard H. Oxman

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The view that participation by the respondent state enhances the perceived legitimacy of international judicial or arbitral proceedings may play a significant role in a decision not to participate. Such a decision may be prompted by political rather than legal considerations. The object of nonparticipation may be to facilitate exercise of a political option of noncompliance with the judgment or award, notwithstanding prior agreement that it is legally binding. If so, then the basic issue is not nonparticipation as such, but rather noncompliance with a legally binding award or judgment, as well as a legally binding commitment to arbitrate or …

How Neuroscience Technology Is Changing Our Understanding Of Brain Injury, Vegetative States And The Law, Glenn R. Butterton

Articles

The author examines clinical studies that use neuroscience technology to study patients in Vegetative States. The studies indicate that some of the patients are, in fact, conscious. The author suggests that this finding is a matter of considerable practical importance for the drafting and execution of end-of-life protocols such as Advance Directives and Living Wills. He recommends that statutes, and other guidance used by patients, caregivers, medical institutions, family members and others to draft and interpret such Directives and Wills, be revised or amended to take account of these results.