Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (1349)
- Law (699)
- Engineering (401)
- Physics (367)
- Mathematics (320)
-
- Computer Sciences (251)
- Chemistry (241)
- Medicine and Health Sciences (197)
- Life Sciences (178)
- Electrical and Computer Engineering (162)
- Applied Mathematics (108)
- Environmental Sciences (104)
- Optics (93)
- Education (86)
- Food Science (85)
- Social and Behavioral Sciences (73)
- Partial Differential Equations (59)
- Non-linear Dynamics (57)
- Artificial Intelligence and Robotics (55)
- Materials Chemistry (55)
- Business (50)
- Atomic, Molecular and Optical Physics (48)
- Biological and Chemical Physics (48)
- Statistics and Probability (48)
- Civil and Environmental Engineering (47)
- Computer Engineering (45)
- Science and Technology Law (43)
- Arts and Humanities (38)
- Astrophysics and Astronomy (38)
- Biochemistry, Biophysics, and Structural Biology (36)
- Institution
-
- Technological University Dublin (1767)
- Rochester Institute of Technology (343)
- University of Chicago Law School (247)
- University of Michigan Law School (177)
- University of Miami Law School (82)
-
- University of Minnesota Law School (63)
- Yeshiva University, Cardozo School of Law (60)
- Southern Illinois University Carbondale (49)
- University of Alabama School of Law (46)
- University of Washington School of Law (44)
- UIdaho Law (21)
- Mercer University School of Law (6)
- North Carolina Agricultural and Technical State University (4)
- World Maritime University (4)
- Munster Technological University (3)
- National Law School of India University (3)
- Corewell Health (2)
- Utah State University (2)
- Fordham Law School (1)
- Liberty University (1)
- Stephen F. Austin State University (1)
- University of Baltimore Law (1)
- Keyword
-
- Raman spectroscopy (36)
- Holography (33)
- Machine learning (24)
- Photopolymers (20)
- Artificial intelligence (17)
-
- Technology (17)
- Abelian groups (16)
- Language (16)
- Photopolymer (16)
- Solitons (16)
- Simulation (15)
- Ultrasound (15)
- Ireland (13)
- Nanoparticles (13)
- Education (12)
- Lawyers (12)
- Modelling (12)
- Photocatalysis (12)
- United States Supreme Court (12)
- Climate change (11)
- Logic (11)
- Mathematics (11)
- Raman Spectroscopy (11)
- Cytotoxicity (10)
- Economics (10)
- Empirical studies (10)
- Regulation (10)
- Risk (10)
- Spectroscopy (10)
- Statistics (10)
- Publication Year
- Publication Type
- File Type
Articles 2341 - 2370 of 2927
Full-Text Articles in Entire DC Network
Reaching Disclosure, Carl E. Schneider
Reaching Disclosure, Carl E. Schneider
Articles
It is easy to forget but crucial to remember that when lawmakers decide to regulate an activity, they must select a method. The law of bioethics particularly favors one method-requiring disclosure of information. The doctrine of informed consent obliges doctors to tell patients their treatment choices. The administrative law of research ethics insists that researchers warn subjects of the risks of experiments. The Patient Self-Determination Act compels medical institutions to remind patients about advance directives. The federal government's new privacy regulations instruct medical institutions to describe their privacy regime to patients. Not just the law of bioethics, but health law …
On Torsion-Free Crawley Groups, Brendan Goldsmith, A. L. S. Corner, R. Gobel
On Torsion-Free Crawley Groups, Brendan Goldsmith, A. L. S. Corner, R. Gobel
Articles
The notion of a Crawley p-group is well known in Abelian group theory. In this present work, a corresponding concept is introduced for torsion-free groups. The principal result, which uses the set-theoretic notions of the diamond and Martin’s axiom, establishes an independence result for N1-free Crawley groups.
An Explicit Mapping Between The Frequency Domain And The Time Domain Representations Of Nonlinear Systems, Marissa Condon, Rossen Ivanov
An Explicit Mapping Between The Frequency Domain And The Time Domain Representations Of Nonlinear Systems, Marissa Condon, Rossen Ivanov
Articles
Explicit expressions are presented that describe the input-output behaviour of a nonlinear system in both the frequency and the time domain. The expressions are based on a set of coefficients that do not depend on the input to the system and are universal for a given system. The anharmonic oscillator is chosen as an example and is discussed for different choices of its physical parameters. It is shown that the typical approach for the determination of the Volterra Series representation is not valid for the important case when the nonlinear system exhibits oscillatory behaviour and the input has a pole …
Manev Potential And General Relativity, Rossen Ivanov, Emil Prodanov
Manev Potential And General Relativity, Rossen Ivanov, Emil Prodanov
Articles
Manevis classical potential is known to successfully modify Newtonian celestial mechanics, in accordance with the general-relativistic description. The idea of replacing the exact solution of Einsteinis equations, describing orbiting bodies, with a classical potential is widely used today. These models are not restricted to planetary motion only, but also include numerous interesting astrophysical phenomena such as accretion of matter around black holes or massive stars.
Zeros Of The Jost Function For A Class Of Exponentially Decaying Potentials, Daphne Gilbert, Alain Kerouanton
Zeros Of The Jost Function For A Class Of Exponentially Decaying Potentials, Daphne Gilbert, Alain Kerouanton
Articles
We investigate the properties of a series representing the Jost solution for the differential equation $-y''+q(x)y=lambda y$, $x geq 0$, $q in mathrm{L}({mathbb{R}}^{+})$. Sufficient conditions are determined on the real or complex-valued potential $q$ for the series to converge and bounds are obtained for the sets of eigenvalues, resonances and spectral singularities associated with a corresponding class of Sturm-Liouville operators. In this paper, we restrict our investigations to the class of potentials $q$ satisfying $|q(x)| leq ce^{-ax}$, $x geq 0$, for some $a>0$ and $c$ greator than 0.
Temperature Dependent Spectroscopic Studies Of Hipco Swnt Composites, Sinead Keogh, Theresa Hedderman, Garrett Farrell, M Ruether, Elizabeth Gregan, Mary Mcnamara, Gordon Chambers, Hugh Byrne
Temperature Dependent Spectroscopic Studies Of Hipco Swnt Composites, Sinead Keogh, Theresa Hedderman, Garrett Farrell, M Ruether, Elizabeth Gregan, Mary Mcnamara, Gordon Chambers, Hugh Byrne
Articles
No abstract provided.
The Simultaneous Onset And Interaction Of Taylor And Dean Instabilities In A Couette Geometry, C. P. Hills, A. P. Bassom
The Simultaneous Onset And Interaction Of Taylor And Dean Instabilities In A Couette Geometry, C. P. Hills, A. P. Bassom
Articles
The fluid flow between a pair of coaxial circular cylinders generated by the uniform rotation of the inner cylinder and an azimuthal pressure gradient is susceptible to both Taylor and Dean type instabilities. The flow can be characterised by two parameters: a measure of the relative magnitude of the rotation and pressure effects and a non-dimensional Taylor number. Neutral curves associated with each instability can be constructed but it has been suggested that these curves do not cross but rather posses `kinks'. Our work is based in the small gap, large wavenumber limit and considers the simultaneous onset of Taylor …
Spectral Imaging Using A Commercial Colour-Filter Array Digital Camera, Roy Berns, Lawrence Taplin, Mahdi Nezamabadi
Spectral Imaging Using A Commercial Colour-Filter Array Digital Camera, Roy Berns, Lawrence Taplin, Mahdi Nezamabadi
Articles
A multi-year research programme is underway to develop and deliver spectral-based digital cameras for imaging cultural heritage at the National Gallery of Art, Washington DC, and the Museum of Modern Art, New York. The cameras will be used for documentation, production imaging, and conservation science. Three approaches have undergone testing: a liquid-crystal tunable filter (LCTF) coupled with a monochrome camera, a six-position filter wheel containing absorption filters coupled with a monochrome camera, and a two-position filter slider containing absorption filters coupled with a colour-filter array (CFA) colour camera. The last approach is the most practical as it uses conventional digital …
Evaluation Of A Modified Sinar 54m Digital Camera At The National Gallery Of Art, Washington Dc During April, 2005, Roy Berns, Lawrence Taplin
Evaluation Of A Modified Sinar 54m Digital Camera At The National Gallery Of Art, Washington Dc During April, 2005, Roy Berns, Lawrence Taplin
Articles
On April 26 – 27 2005, the RIT team brought their prototype Sinar 54M camera system to the National Gallery of Art’s Imaging Department. The team included Lawrence Taplin, Mitchell Rosen, and Roy Berns. RIT brought a spectroradiometer to measure the daylight fluorescent viewing illumination and if time allowed, NGA’s CRT display. They also brought a Macintosh G5 to control the camera and for image processing. NGA is using a production Sinar 54M. This enabled a direct comparison between NGA’s digital imaging workflow and the RIT workflow. Both cameras used the same lighting, Broncolor pulsed Xenon, lighting geometry, and photography …
Solving An Mri Spin Relaxometry Problem With Parallel Computing, Alan Kaminsky, Luke Mcomber
Solving An Mri Spin Relaxometry Problem With Parallel Computing, Alan Kaminsky, Luke Mcomber
Articles
MRI spin relaxometry is the process of recovering the spin density spectrum from the time samples of the spin signal for each pixel of a magnetic resonance image. Since healthy tissue exhibits different spin relaxation rates from diseased tissue, MRI spin relaxometry potentially has utility for diagnosing disease. However, recovering the spin relaxation rates involves solving an inverse problem which requires substantial computation. The computation's running time can be reduced by processing the pixels in parallel on a parallel computer. A parallel program for solving the MRI spin relaxometry problem, SRSolve, was implemented in Java with MPI, its running time …
Geometric Modeling Of Engineered Abrasive Processes, Andres L. Carrano, James B. Taylor
Geometric Modeling Of Engineered Abrasive Processes, Andres L. Carrano, James B. Taylor
Articles
One of the common issues that arises in abrasive machining is the inconsistency of the surface roughness within the same batch and under identical machining conditions. Recent advances in engineered abrasives have allowed replacement of the random arrangement of minerals on conventional belts with precisely shaped structures uniformly cast directly onto a backing material. This allows for abrasive belts that are more deterministic in shape, size, distribution, orientation, and composition. A computer model based on known tooling geometry was developed to approximate the asymptotic surface profile that was achievable under specific loading conditions. Outputs included the theoretical surface parameters, R^sub …
Loving Your Students - A Faculty Model For Today's Classroom, Anthony Trippe
Loving Your Students - A Faculty Model For Today's Classroom, Anthony Trippe
Articles
This paper reviews research related to four recent business management models of charismatic and inspirational leadership. It goes on to select the key traits and behaviors of these leadership models for the workplace environment and use them as the foundation of a model for a loving faculty member. Like the business leader, the devoted, caring professor leads his engineering students in their quest for knowledge, growth and learning. Based upon peer-reviewed leadership research which reports the value and benefits of a caring, mentoring and loving leader in the business world, the loving professor will also be successful in meeting the …
On The Integrability Of A Class Of Nonlinear Dispersive Wave Equations, Rossen Ivanov
On The Integrability Of A Class Of Nonlinear Dispersive Wave Equations, Rossen Ivanov
Articles
We investigate the integrability of a class of 1+1 dimensional models describing nonlinear dispersive waves in continuous media, e.g. cylindrical compressible hyperelastic rods, shallow water waves, etc. The only completely integrable cases coincide with the Camassa-Holm and Degasperis-Procesi equations.
Investigation Of The Effect Of Subcutaneous Fat On Image Quality Performance Of 2d Conventional Imaging And Tissue Harmonic Imaging, Jacinta Browne, Amanda Watson, Peter Hoskins, Alex Elliott
Investigation Of The Effect Of Subcutaneous Fat On Image Quality Performance Of 2d Conventional Imaging And Tissue Harmonic Imaging, Jacinta Browne, Amanda Watson, Peter Hoskins, Alex Elliott
Articles
Tissue harmonic imaging (THI) has been reported to improve contrast resolution, tissue differentiation and overall image quality in clinical examinations. However, a study carried out previously by the authors (Browne et al. 2004) found improvements only in spatial resolution and not in contrast resolution or anechoic target detection. This result may have been due to the homogeneity of the phantom. Biologic tissues are generally inhomogeneous and THI has been reported to improve image quality in the presence of large amounts of subcutaneous fat. The aims of the study were to simulate the distortion caused by subcutaneous fat to image quality …
Structure-Property Relationships For Electron-Vibrational Coupling In Conjugated Organic Oligomeric Systems, Luke O'Neill, Hugh Byrne
Structure-Property Relationships For Electron-Vibrational Coupling In Conjugated Organic Oligomeric Systems, Luke O'Neill, Hugh Byrne
Articles
A series of ð-conjugated oligomers containing one to six monomer units were studied by absorption and photoluminescence spectroscopy. As is common for these systems, a linear relationship between the positioning of the lowest-energy absorption and the highest-energy photoluminescence maxima plotted versus inverse conjugation length is observed, in good agreement with a simple nearly free electron model, one of the earliest descriptions of the properties of one-dimensional organic molecules. It was observed that the Stokes shift and therefore Huang-Rhys factor also exhibit a well-defined relationship with increasing conjugation length, implying a correlation between the electron-vibrational coupling and chain length. This correlation …
Characterisation Of An Acrylamide-Based Photopolymer For Data Storage Utilizing Holographic Angular Multiplexing, Hosam Sherif, Izabela Naydenova, Suzanne Martin, Colm Mcginn, Vincent Toal
Characterisation Of An Acrylamide-Based Photopolymer For Data Storage Utilizing Holographic Angular Multiplexing, Hosam Sherif, Izabela Naydenova, Suzanne Martin, Colm Mcginn, Vincent Toal
Articles
An acrylamide-based photopolymer formulated in the Centre for Industrial and Engineering Optics has been investigated with a view to further optimisation for holographic optical storage. Series of 18 to 30 gratings were angularly multiplexed in a volume of photopolymer layer at a spatial frequency of 1500 lines/mm. Since the photopolymer is a saturable material, an exposure scheduling method was used to exploit the entire dynamic range of the material and allow equal strength holographic gratings to be recorded. This investigation yielded the photopolymer M/# for moderately thin layers. Photopolymer temporal stability was also studied by measuring variations of material shrinkage, …
Modernization Of The Hilger And Watts Guage-Block Interferometer, Michael O'Hora, Brian Bowe, Vincent Toal, Sean Peyton
Modernization Of The Hilger And Watts Guage-Block Interferometer, Michael O'Hora, Brian Bowe, Vincent Toal, Sean Peyton
Articles
The Hilger & Watts gauge-block interferometer was designed and manufactured commercially in the 1950s. The instrument uses isotope lamps as wavelength standards to perform absolute length calibration of gauge blocks (slip gauges) up to 100 mm in length, to an accuracy of approximately 1 ppm. It is entirely manually operated. In order to make the instrument more suitable for the modern laboratory, new hardware has been added, and a customized software package developed to automate the measurement process. This paper shows how interferograms may be imaged successfully at each of the eight available wavelengths, and the critical fringe fraction measurement …
Structure Property Relationships In Organic Conjugated Systems, Luke O'Neill, Patrick Lynch, Mary Mcnamara
Structure Property Relationships In Organic Conjugated Systems, Luke O'Neill, Patrick Lynch, Mary Mcnamara
Articles
A series of π conjugated oligomers were studied by absorption and photoluminescence spectroscopy. A linear relationship between the positioning of the absorption and photoluminescence maxima plotted against inverse conjugation length is observed. The relationships are in good agreement with the simple particle in a box method, one of the earliest descriptions of the properties of one-dimensional organic molecules. In addition to the electronic transition energies, it was observed that the Stokes shift also exhibited a well-defined relationship with increasing conjugation length, implying a correlation between the electron-vibrational coupling and chain length. This correlation is further examined using Raman spectroscopy, whereby …
Structural Property Relationships In Conjugated Polymers, Patrick Lynch, Luke O'Neill, J. Whelan, Mary Mcnamara, Hugh Byrne
Structural Property Relationships In Conjugated Polymers, Patrick Lynch, Luke O'Neill, J. Whelan, Mary Mcnamara, Hugh Byrne
Articles
The synthesis of a series of PPV derivative polymers by the Wittig-Horner reaction is described. The structure of each polymer is varied and the effects of these variations on the optical properties is explored. The effects of alkyloxy side chains is observed between the PPV derivatives Poly(-p-phenylvinylene-co-2,5-bis-octyloxy phenylvinylene.) PPV-OPV and Poly (para-2,5-bis-(n-octyloxy)-phenylvinylene) POPV. The phenyl units of the soluble PPV derivative POPV are replaced by alternate naphthyl units in the polymer Poly(2,5-bis(n-octyloxy)-1,4-phenylene vinylene-1,5-bis(n-octyloxy)-2,6-naphthylene vinylene) POPN-ONV and then fully by naphthyl units in Poly(2,6-bis-(n-octyloxy)-1,5-NaphthyleneVinylene) PONV. The addition of alkyloxy sidechains served to red shift the fluorescence emission as expected. The systematic …
Photocontrol Of Upper And Lower Rim Complexation Of Neutral And Cationic Species By P-Tert-Butylcalix[4]Arene Tetraethyl Ester, Mary Deasy, Bernadette Creaven, Brian A. Murray, Catherine Mckenna, Darren Tobin
Photocontrol Of Upper And Lower Rim Complexation Of Neutral And Cationic Species By P-Tert-Butylcalix[4]Arene Tetraethyl Ester, Mary Deasy, Bernadette Creaven, Brian A. Murray, Catherine Mckenna, Darren Tobin
Articles
A number of sodium salt complexes of p-tert-butylcalix[4]arene tetraethyl ester, 1, were isolated both with and without upper-rim encapsulated solvent. Selective decomplexation of lower rim bound sodium cations and upper rim encapsulated solvent molecules could be successfully achieved using low pressure light sources. Oxidation of the counter anion at the lower rim of p-tert-butylcalix[4]arene tetraethyl ester triggered both the upper and lower rim decomplexation process. The extent of decomplexation at both rims is controlled both by the nature of the counter-anionic species at the lower rim and by the fate of the photoproducts generated. The calixarene host …
Future Reasoning Machines: Mind And Body, Brian Duffy, Gregory O'Hare, John Bradley, Bianca Schoen-Phelan
Future Reasoning Machines: Mind And Body, Brian Duffy, Gregory O'Hare, John Bradley, Bianca Schoen-Phelan
Articles
In investing energy in developing reasoning machines of the future, one must abstract away from the specific solutions to specific problems and ask what are the fundamental research questions that should be addressed. This paper aims to revisit some fundamental perspectives and promote new approaches to reasoning machines and their associated form and function. Core aspects are discussed, namely the one-mind-many-bodies metaphor as introduced in the Agent Chameleon work. Within this metaphor the agent’s embodiment form may take many guises with the artificial mind or agent potentially exhibiting a nomadic existence opportunistically migrating between a myriad of instantiated embodiments. We …
An Assessment Of Case-Based Reasoning For Spam Filtering, Sarah Jane Delany, Padraig Cunningham, Lorcan Coyle
An Assessment Of Case-Based Reasoning For Spam Filtering, Sarah Jane Delany, Padraig Cunningham, Lorcan Coyle
Articles
Because of the changing nature of spam, a spam filtering system that uses machine learning will need to be dynamic. This suggests that a case-based (memory-based) approach may work well. Case-Based Reasoning (CBR) is a lazy approach to machine learning where induction is delayed to run time. This means that the case base can be updated continuously and new training data is immediately available to the induction process. In this paper we present a detailed description of such a system called ECUE and evaluate design decisions concerning the case representation. We compare its performance with an alternative system that uses …
How Well Can People Use Different Color Attributes?, Hongqin Zhang, Ethan Montag
How Well Can People Use Different Color Attributes?, Hongqin Zhang, Ethan Montag
Articles
Two psychophysical experiments were conducted to analyze the role of color attributes in simple tasks involving color matching and discrimination. In Experiment I observers made color matches using three different adjustment control methods. The results showed that the Lightness, Chroma, Hue (LCH) and the Lightness, redness/greenness, blueness/yellowness ({L, r/g, y/b}) adjustment controls elicited significantly better performance than the display RGB controls in terms of both accuracy and time, but were not significantly different from each other. Expert observers performed significantly better than naive observers in terms of accuracy. Experiment II was a replication and extension of Melgosa, et al.’s experiment …
A Classification Of Tournaments Having An Acyclic Tournament As A Minimum Feedback Arc Set, Garth Isaak, Darren Narayan
A Classification Of Tournaments Having An Acyclic Tournament As A Minimum Feedback Arc Set, Garth Isaak, Darren Narayan
Articles
Given a tournament with an acyclic tournament as a feedback arc set we give necessary and sufficient conditions for this feedback arc set to have minimum size.
Gaming Delaware, William Wilson Bratton
Integrating Remorse And Apology Into Criminal Procedure, Stephanos Bibas, Richard A. Bierschbach
Integrating Remorse And Apology Into Criminal Procedure, Stephanos Bibas, Richard A. Bierschbach
Articles
The article argues that the criminal justice system's current focus on punishment and procedural efficiency overlooks the transformative potential of remorse and apology in repairing moral and relational harm caused by crime. It advocates for a relational approach that integrates mechanisms like restorative justice and victim-offender mediation to foster healing, reconciliation, and reintegration of offenders into society.
Structural Characterisation Of A Sol-Gel Copolymer Synthesised From Aliphatic And Aromatic Alkoxysilanes Using 29si-Nmr Spectroscopy, Mohamed Oubaha, M. Dubois, B. Murphy, P. Etienne
Structural Characterisation Of A Sol-Gel Copolymer Synthesised From Aliphatic And Aromatic Alkoxysilanes Using 29si-Nmr Spectroscopy, Mohamed Oubaha, M. Dubois, B. Murphy, P. Etienne
Articles
A hybrid organic-inorganic material was prepared from the hydrolytic co-condensation of 3- trimethoxysilylpropylmethacrylate (MAPTMS) and diphenyldiethoxysilane (DPHDES). The synthesis was performed in three steps: (1) MAPTMS pre-hydrolysis, (2) addition of DPHDES, and (3) further hydrolysis of the obtained mixture. 29 Si nuclear magnetic resonance spectroscopy was used to characterise the structural evolution of the mineral network during the synthesis. It revealed the catalytic effect of DPHDES on the condensation reaction of silanol groups, initially observed for pre-hydrolysed MAPTMS. In addition, it was clearly demonstrated that the formation of the highest condensed species of the aromatic oligomers (D2 species) occurred …
Stark Width And Shift Of The Neutral Argon 425.9 Nm Spectral Line, Vladimir Milosavljevic, Vida Zigman, Stevan Djenize
Stark Width And Shift Of The Neutral Argon 425.9 Nm Spectral Line, Vladimir Milosavljevic, Vida Zigman, Stevan Djenize
Articles
The Stark parameters, the width (W) and the shift (d), of the neutral argon (Ar I) 425.9 nm spectral line have been studied in a linear, low-pressure, optically thin pulsed arc discharge. The line shapes are measured in three different plasmas at about 16,000 K electron temperature (T) and about 7.0×1022 m−3 electron density (N). The separate electron and ion contributions to the total Stark width (Wt), i.e. We and Wi, as well as to the total Stark shift (dt), i.e. …
Time Restrictions In Natural Resource Management: A Dynamic And Stochastic Analysis, Amitrajeet A. Batabyal, Hamid Beladi
Time Restrictions In Natural Resource Management: A Dynamic And Stochastic Analysis, Amitrajeet A. Batabyal, Hamid Beladi
Articles
This paper provides a theoretical analysis of time restrictions in the context of natural resource management in North America. The economic inefficiencies arising from the use of time restrictions to protect natural resources have been well documented by researchers. We first show that in the presence of uncertainty about the evolution of the resource stock, time restrictions can lead to the collapse of the resource that is sought to be protected. Given this finding, in the second part of the paper, we discuss an approach to natural resource management under uncertainty in which time restrictions are used to maximize the …
On The Dressing Method For The Generalised Zakharov-Shabat System, Rossen Ivanov
On The Dressing Method For The Generalised Zakharov-Shabat System, Rossen Ivanov
Articles
The dressing procedure for the Generalised Zakharov-Shabat system is well known for systems, related to sl(N) algebras. We extend the method, constructing explicitly the dressing factors for some systems, related to orthogonal and symplectic Lie algebras. We consider ’dressed’ fundamental analytical solutions with simple poles at the prescribed eigenvalue points and obtain the corresponding Lax potentials, representing the soliton solutions for some important nonlinear evolution equations.