2,551 research outputs found
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The Right of Jury Nullification in Reconstruction-Era Originalism: The Fourteenth Amendment and the Constitutionalization of Judicial Precedent
More than a century ago, the Supreme Court, invoking antebellum judicial precedent, held that juries no longer have the right to “nullify,” that is, to refuse to apply the law. Today, however, in determining the substance of the constitutional criminal procedure right of trial by jury, the Supreme Court emphasizes originalism, assessing the right’s current boundaries by the Founding-era understanding of it. Relying on the Supreme Court’s originalist jurisprudence, scholars and several federal judges have recently concluded that because Founding-era juries had the right to nullify, the right was beyond the authority of nineteenth-century judges to curtail, and that, under the current originalist regime, it should be restored. Yet originalists who advocate restoration of the right to nullify are missing an important constitutional moment: Reconstruction. The Fourteenth Amendment fundamentally transformed constitutional criminal procedure by incorporating rights against the states and by providing a federally guaranteed civil right to protection that altered the relationship between the federal government and localities and between federal judges and local juries. Reconstruction-era history thus illuminates a new original understanding of constitutional criminal procedure rights today.
This paper analyzes Reconstruction-era judicial practices, legal treatises, dictionaries, Congressional debates, and Congressional legislation to provide an account of how the Fourteenth Amendment’s framers, ratifiers, original interpreters, and original enforcers understood the “new” Constitution and their amendment to affect jury nullification. It finds that the Reconstruction Congresses understood the Fourteenth Amendment not to incorporate the jury’s right to nullify against the states, even as it incorporated a general right to jury trial and due process. On the contrary, the Reconstruction Republicans understood jury nullification to be incompatible with the constitutional rights to life, liberty, property, and security that they were charged with protecting in the former Confederate states and in the Utah Territory. In what was then among the most significant revolutions in federal jury law, the Reconstruction Republicans, understanding the Constitution to authorize them even to disallow jury nullification in at least some types of federal cases, supported legislation that would purge in mass from criminal juries Southern and Mormon would-be nullifiers, even some prospective jurors who plausibly believed that a federal criminal statute was unconstitutional.
Therefore, the Reconstruction Congresses, through the Fourteenth Amendment and its enforcement legislation, may have superdemocratically constitutionalized the nineteenth-century judicial precedent that had disallowed the jury’s right to nullify. There may be, in other words, an originalist basis, grounded in the Fourteenth Amendment’s text and history, for the shift away from the right to nullify. While no single account may definitively capture “original meaning,” Reconstruction-era history provides a new original understanding of a dilemma in contemporary constitutional criminal procedure
Redetermination of (d-penicillaminato)lead(II)
In the title coordination polymer, [Pb(C5H9NO2S)]n {systematic name: catena-poly[(μ-2-amino-3-methyl-3-sulfidobutanoato)lead(II)]}, the d-penicillaminate ligand coordinates to the metal ion in an N,S,O-tridentate mode. The S atom acts as a bridge to two neighbouring PbII ions, thereby forming a double thiolate chain. Moreover, the coordinating carboxylate O atom forms bridges to the PbII ions in the adjacent chain. The overall coordination sphere of the PbII ion can be described as a highly distorted pentagonal bipyramid with a void in the equatorial plane between the long Pb—S bonds probably occupied by the stereochemically active inert electron pair. The amino H atoms form N—H⋯S and N—H⋯O hydrogen bonds, resulting in a cluster of four complex units, giving rise to an R
4
4(16) ring lying in the ab plane. The crystal structure of the title compound has been reported previously [Freeman et al. (1974 ▶). Chem. Soc. Chem. Commun. pp. 366–367] but the atomic coordinates have not been deposited in the Cambridge Structural Database (refcode DPENPB). Additional details of the hydrogen bonding are presented here
Beam Studies of the Segmented Resistive WELL: a Potential Thin Sampling Element for Digital Hadron Calorimetry
Thick Gas Electron Multipliers (THGEMs) have the potential of constituting
thin, robust sampling elements in Digital Hadron Calorimetry (DHCAL) in future
colliders. We report on recent beam studies of new single- and
double-THGEM-like structures; the multiplier is a Segmented Resistive WELL
(SRWELL) - a single-faced THGEM in contact with a segmented resistive layer
inductively coupled to readout pads. Several 1010 cm configurations
with a total thickness of 5-6 mm (excluding electronics) with 1 cm pads
coupled to APV-SRS readout were investigated with muons and pions. Detection
efficiencies in the 98 range were recorded with average pad-multiplicity of
1.1. The resistive anode resulted in efficient discharge damping, with
potential drops of a few volts; discharge probabilities were for
muons and for pions in the double-stage configuration, at rates
of a few kHz/cm. Further optimization work and research on larger detectors
are underway.Comment: Presented at the Vienna Conference on Instrumentation,
February 2013 and submitted to its proceeding
Exebacase for Staphylococcus aureus bloodstream infection and endocarditis
BACKGROUND: Novel therapeutic approaches are critically needed for Staphylococcus aureus bloodstream infections (BSI), particularly for methicillin-resistant S. aureus (MRSA). Exebacase, a first-in-class antistaphylococcal lysin, is a direct lytic agent that is rapidly bacteriolytic, eradicates biofilms, and synergizes with antibiotics.
METHODS: In this superiority-design study, we randomly assigned 121 patients with S. aureus BSI/endocarditis to receive a single dose of exebacase or placebo. All patients received standard-of-care antibiotics. The primary efficacy endpoint was clinical outcome (responder rate) at Day 14.
RESULTS: Clinical responder rates at Day 14 were 70.4% and 60.0% in the exebacase + antibiotics and antibiotics alone groups, respectively (difference=10.4, 90% CI [-6.3, 27.2], p-value=0.31), and were 42.8 percentage points higher in the pre-specified exploratory MRSA subgroup (74.1% vs. 31.3%, difference=42.8, 90% CI [14.3, 71.4], ad hoc p value=0.01). Rates of adverse events (AEs) were similar in both groups. No AEs of hypersensitivity to exebacase were reported. Thirty-day all-cause mortality rates were 9.7% and 12.8% in the exebacase + antibiotics and antibiotics alone groups, respectively, with a notable difference in MRSA (3.7% vs. 25.0%, difference= -21.3, 90% CI [-45.1, 2.5], ad hoc p-value=0.06). Among MRSA patients in the United States, median length-of-stay was 4-days shorter and 30-day hospital readmission rates were 48 percentage points lower in the exebacase-treated group compared with antibiotics alone.
CONCLUSIONS: This study establishes proof-of-concept for exebacase and direct lytic agents as potential therapeutics and supports conduct of a confirmatory study focused on exebacase to treat MRSA BSI
Glycoprotein Ib activation by thrombin stimulates the energy metabolism in human platelets
<div><p>Thrombin-induced platelet activation requires substantial amounts of ATP. However, the specific contribution of each ATP-generating pathway <i>i</i>.<i>e</i>., oxidative phosphorylation (OxPhos) versus glycolysis and the biochemical mechanisms involved in the thrombin-induced activation of energy metabolism remain unclear. Here we report an integral analysis on the role of both energy pathways in human platelets activated by several agonists, and the signal transducing mechanisms associated with such activation. We found that thrombin, Trap-6, arachidonic acid, collagen, A23187, epinephrine and ADP significantly increased glycolytic flux (3–38 times <i>vs</i>. non-activated platelets) whereas ristocetin was ineffective. OxPhos (33 times) and mitochondrial transmembrane potential (88%) were increased only by thrombin. OxPhos was the main source of ATP in thrombin-activated platelets, whereas in platelets activated by any of the other agonists, glycolysis was the principal ATP supplier. In order to establish the biochemical mechanisms involved in the thrombin-induced OxPhos activation in platelets, several signaling pathways associated with mitochondrial activation were analyzed. Wortmannin and LY294002 (PI3K/Akt pathway inhibitors), ristocetin and heparin (GPIb inhibitors) as well as resveratrol, ATP (calcium-release inhibitors) and PP1 (Tyr-phosphorylation inhibitor) prevented the thrombin-induced platelet activation. These results suggest that thrombin activates OxPhos and glycolysis through GPIb-dependent signaling involving PI3K and Akt activation, calcium mobilization and protein phosphorylation.</p></div
Comparison of Time-Domain OCT and Fundus Photographic Assessments of Retinal Thickening in Eyes with Diabetic Macular Edema
To explore the correlation between optical coherence tomography (OCT) and stereoscopic fundus photographs (FP) for the assessment of retinal thickening (RT) in diabetic macular edema (DME) within a clinical trial
Challenges Associated with Estimating Utility in Wet Age-Related Macular Degeneration : A Novel Regression Analysis to Capture the Bilateral Nature of the Disease
INTRODUCTION: The estimation of utility values for the economic evaluation of therapies for wet age-related macular degeneration (AMD) is a particular challenge. Previous economic models in wet AMD have been criticized for failing to capture the bilateral nature of wet AMD by modelling visual acuity (VA) and utility values associated with the better-seeing eye only. METHODS: Here we present a de novo regression analysis using generalized estimating equations (GEE) applied to a previous dataset of time trade-off (TTO)-derived utility values from a sample of the UK population that wore contact lenses to simulate visual deterioration in wet AMD. This analysis allows utility values to be estimated as a function of VA in both the better-seeing eye (BSE) and worse-seeing eye (WSE). RESULTS: VAs in both the BSE and WSE were found to be statistically significant (p < 0.05) when regressed separately. When included without an interaction term, only the coefficient for VA in the BSE was significant (p = 0.04), but when an interaction term between VA in the BSE and WSE was included, only the constant term (mean TTO utility value) was significant, potentially a result of the collinearity between the VA of the two eyes. The lack of both formal model fit statistics from the GEE approach and theoretical knowledge to support the superiority of one model over another make it difficult to select the best model. CONCLUSION: Limitations of this analysis arise from the potential influence of collinearity between the VA of both eyes, and the use of contact lenses to reflect VA states to obtain the original dataset. Whilst further research is required to elicit more accurate utility values for wet AMD, this novel regression analysis provides a possible source of utility values to allow future economic models to capture the quality of life impact of changes in VA in both eyes. FUNDING: Novartis Pharmaceuticals UK Limited
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Factors Associated with Improvement and Worsening of Visual Acuity 2 Years after Focal/Grid Photocoagulation for Diabetic Macular Edema
Purpose: To identify factors associated with the visual acuity outcome following focal/grid photocoagulation for diabetic macular edema (DME) among eyes randomized to the focal/grid photocoagulation treatment group within the Diabetic Retinopathy Clinical Research Network (DRCR.net) trial comparing triamcinolone with focal/grid laser. Design: Multicenter, randomized clinical trial. Participants: Three hundred thirty eyes with DME assigned to the focal/grid photocoagulation group, visual acuity 20/40 to 20/320 and optical coherence tomography (OCT) central subfield thickness ≥250 microns. Methods: Eyes were treated with a protocol-defined photocoagulation technique, which was repeated at 4-month intervals for persistent or recurrent edema. Separate logistic regression models were used to evaluate the associations of demographic, clinical, OCT, and fundus photographic variables with visual acuity improvement or worsening of 10 or more letters from baseline to 2 years. The association of the initial visual acuity outcome after treatment with the subsequent visual acuity course also was evaluated. Main Outcome Measures: Visual acuity measured with the electronic Early Treatment Diabetic Retinopathy Study method. Results: Worse baseline visual acuity was the only factor found to be associated with more frequent visual acuity improvement (P<0.001), and both greater baseline OCT-measured retinal volume (P=0.001) and better baseline visual acuity (P=0.009) were found to be associated with more frequent visual acuity worsening. Visual acuity outcomes were similar in eyes with and without prior macular or panretinal photocoagulation. The initial visual acuity outcome at 4 months was not generally predictive of the subsequent course. Many eyes that worsened 10 or more letters from baseline to 4 months subsequently improved, and many eyes that initially improved, subsequently worsened. Conclusions: At this time, focal/grid photocoagulation remains the standard management for DME and these results do not alter this paradigm
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Rationale for the Diabetic Retinopathy Clinical Research Network Treatment Protocol for Center-Involved Diabetic Macular Edema
Objective: Describe the underlying principles used to develop a web-based algorithm that incorporated intravitreal anti-vascular endothelial growth factor (anti-VEGF) treatment for diabetic macular edema (DME) in a Diabetic Retinopathy Clinical Research Network (DRCR.net) randomized clinical trial. Design: Discussion of treatment protocol for DME. Participants: Subjects with vision loss from DME involving the center of the macula. Methods: The DRCR.net created an algorithm incorporating anti-VEGF injections in a comparative effectiveness randomized clinical trial evaluating intravitreal ranibizumab with prompt or deferred (≥24 weeks) focal/grid laser in eyes with vision loss from center-involved DME. Results confirmed that intravitreal ranibizumab with prompt or deferred laser provides superior visual acuity outcomes, compared with prompt laser alone through at least 2 years. Duplication of this algorithm may not be practical for clinical practice. In order to share their opinion on how ophthalmologists might emulate the study protocol, participating DRCR.net investigators developed guidelines based on the algorithm's underlying rationale. Main Outcome Measures: Clinical guidelines based on a DRCR.net protocol. Results: The treatment protocol required real time feedback from a web-based data entry system for intravitreal injections, focal/grid laser, and follow-up intervals. Guidance from this system indicated whether treatment was required or given at investigator discretion and when follow-up should be scheduled. Clinical treatment guidelines, based on the underlying clinical rationale of the DRCR.net protocol, include repeating treatment monthly as long as there is improvement in edema compared with the previous month, or until the retina is no longer thickened. If thickening recurs or worsens after discontinuing treatment, treatment is resumed. Conclusions: Duplication of the approach used in the DRCR.net randomized clinical trial to treat DME involving the center of the macula with intravitreal ranibizumab may not be practical in clinical practice, but likely can be emulated based on an understanding of the underlying rationale for the study protocol. Inherent differences between a web-based treatment algorithm and a clinical approach may lead to differences in outcomes that are impossible to predict. The closer the clinical approach is to the algorithm used in the study, the more likely the outcomes will be similar to those published
Structural pathways for ultrafast melting of optically excited thin polycrystalline Palladium films
Due to its extremely short timescale, the non-equilibrium melting of metals
is exceptionally difficult to probe experimentally. The knowledge of melting
mechanisms is thus based mainly on the results of theoretical predictions. This
work reports on the investigation of ultrafast melting of thin polycrystalline
Pd films studied by optical laser pump - X-ray free-electron laser probe
experiments and molecular-dynamics simulations. By acquiring X-ray diffraction
snapshots with sub-picosecond resolution, we capture the sample's atomic
structure during its transition from the crystalline to the liquid state.
Bridging the timescales of experiments and simulations allows us to formulate a
realistic microscopic picture of melting. We demonstrate that the existing
models of strongly non-equilibrium melting, developed for systems with
relatively weak electron-phonon coupling, remain valid even for ultrafast
heating rates achieved in femtosecond laser-excited Pd. Furthermore, we
highlight the role of pre-existing and transiently generated crystal defects in
the transition to the liquid state.Comment: main manuscript 33 pages, 9 figures; supplemental material 19 pages,
13 figures - all in one fil
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