2,414 research outputs found
Justifying violence: legitimacy, ideology and public support for police use of force
Under what conditions do people support police use of force? In this paper we assess some of the empirical links between police legitimacy, political ideology (right-wing authoritarianism and social dominance orientation), and support for ‘reasonable’ use of force (e.g. an officer striking a citizen in self-defence) and ‘excessive’ use of force (e.g. an officer using violence to arrest an unarmed person who is not offering violent resistance). Analyzing data from an online survey with US participants (n=186) we find that legitimacy is a positive predictor of reasonable but not excessive police use of force, and that political ideology predicts support for excessive but not reasonable use of force. We conclude with the idea that legitimacy places normative constraints around police power. On the one hand, legitimacy is associated with increased support for the use of force, but only when violence is bounded within certain acceptable limits. On the other hand, excessive use of force seems to require an extra-legal justification that is – at least in our analysis – partly ideological. Our findings open up a new direction of research in what is currently a rather sparse psychological literature on the ability of legitimacy to ‘tame’ coercive power
Authority and punishment: on the ideological basis of punitive attitudes towards criminals
Why do people support tough sentencing of criminal offenders? Three explanations dominate the literature. The first is an instrumental perspective: people are concerned about becoming a victim of crime and they look to punishment to reduce future harm. The second is a relational perspective: people are concerned about community breakdown, and they support punishment to restore moral boundaries. The third is a psychological model based on ideological preferences: people desire conformity and authority in society, and they look to institutions to punish transgressions that threaten collective security. Building on the work of Tyler & Boeckmann (1997), two studies of London citizens (n1=13,929, n2=283) suggest a way of integrating these three perspectives. We show that right-wing authoritarianism predicts both the extent to which people worry about social threats and the extent to which they support harsh punitive measures. Bridging research from political psychology and criminology, we conclude with the idea that popular punitive sentiment is grounded in an uncritical submission to authorities, an adherence to conservative moral values, and consonant concerns about collective security and cohesion
Does Church Attendance Cause People to Vote? Using Blue Laws' Repeal to Estimate the Effect of Religiosity on Voter Turnout
Regular church attendance is strongly associated with a higher probability of voting. It is an open question as to whether this association, which has been confirmed in numerous surveys, is causal. We use the repeal of the laws restricting Sunday retail activity ("Blue laws") to measure the effects of church-going on political participation. The repeal of Blue Laws caused a 5 percent decrease in church attendance. We measure the effect of Blue Laws' repeal on political participation and find that following the repeal turnout falls by approximately 1 percentage point. This turnout decline, which is statistically significant and fairly robust across model specifications, is consistent with the large effect of church attendance on turnout reported in the literature, and suggests that church attendance may have significant causal influence on voter turnout.
Ab initio calculation of the anomalous Hall conductivity by Wannier interpolation
The intrinsic anomalous Hall effect in ferromagnets depends on subtle
spin-orbit-induced effects in the electronic structure, and recent ab-initio
studies found that it was necessary to sample the Brillouin zone at millions of
k-points to converge the calculation. We present an efficient first-principles
approach for computing the anomalous Hall conductivity. We start out by
performing a conventional electronic-structure calculation including spin-orbit
coupling on a uniform and relatively coarse k-point mesh. From the resulting
Bloch states, maximally-localized Wannier functions are constructed which
reproduce the ab-initio states up to the Fermi level. The Hamiltonian and
position-operator matrix elements, needed to represent the energy bands and
Berry curvatures, are then set up between the Wannier orbitals. This completes
the first stage of the calculation, whereby the low-energy ab-initio problem is
transformed into an effective tight-binding form. The second stage only
involves Fourier transforms and unitary transformations of the small matrices
set up in the first stage. With these inexpensive operations, the quantities of
interest are interpolated onto a dense k-point mesh and used to evaluate the
anomalous Hall conductivity as a Brillouin zone integral. The present scheme,
which also avoids the cumbersome summation over all unoccupied states in the
Kubo formula, is applied to bcc Fe, giving excellent agreement with
conventional, less efficient first-principles calculations. Remarkably, we find
that more than 99% of the effect can be recovered by keeping a set of terms
depending only on the Hamiltonian matrix elements, not on matrix elements of
the position operator.Comment: 16 pages, 7 figure
Convalescent Plasma Therapy: A Passive Therapy for An Aggressive COVID-19
As of May 19, 2020, there are in total 4,986,200 laboratory-confirmed Coronavirus disease-2019 (COVID-19) cases. 2% (45,425) out of 2,657,390 active COVID-19 cases are critically ill and might be requiring intensive care support. Unfortunately, even after six months since its first detection, we still do not have any definitive treatment options for COVID-19 pneumonia. Recently, the use of human convalescent plasma is being considered as a potential option for the treatment of COVID-19
On the justification of intergroup violence: The roles of procedural justice, police legitimacy and group identity in attitudes towards violence among indigenous people
Objective Why do people justify intergroup violence? In this paper we examine attitudes towards violence perpetrated by indigenous activists to claim for rights and violence by pólice officers against indigenous people. We assess the role that perceived pólice legitimacy, procedurally just policing towards the indigenous minority group and group identity play in the justification of intergroup violence. Method We present findings from two surveys (Study 1, n=1493, Study 2, n=198) and an experiment (Study 3, n=76) conducted among indigenous people in Chile. Studies 1 and 2 measure perceptions of police procedural justice towards indigenous people. Study 3 manipulates the fairness with which police officers treat indigenous people. Effects of procedural justice on police legitimacy (Studies 2 and 3) and attitudes towards violence for social change and social control (Studies 1-3) are analyzed. Result Higher perceptions of procedurally just policing towards indigenous people predict more support for police violence and less support for violence perpetrated by indigenous activists. These effects are mediated by perceived police legitimacy and moderated by identification with the minority group. Among people who identify strongly with their indigenous group, perceiving high procedural justice predicts greater police legitimacy, greater support for police violence, and lesser support for violence perpetrated by indigenous activists
Rapid and Deep Remission Induced by Blinatumomab for CD19-Positive Chronic Myeloid Leukemia in Lymphoid Blast Phase
In summary, we show rapid and deep remission induced by blinatumomab in CD19(+) blast phase CML. Clinicians may consider the use of bispecific T-cell engager therapy as a bridge to transplant. Additional studies are needed before expanding the US Food and Drug Administration indication of blinatumomab to include lymphoid blast phase CML
Smartphone Ownership and Interest in Mobile Health Technologies for Self-care Among Patients With Chronic Heart Failure: Cross-sectional Survey Study
BACKGROUND: Heart failure (HF) is a highly prevalent chronic condition that places a substantial burden on patients, families, and health care systems worldwide. Recent advances in mobile health (mHealth) technologies offer great opportunities for supporting many aspects of HF self-care. There is a need to better understand patients\u27 adoption of and interest in using mHealth for self-monitoring and management of HF symptoms.
OBJECTIVE: The purpose of this study is to assess smartphone ownership and patient attitudes toward using mHealth technologies for HF self-care in a predominantly minority population in an urban clinical setting.
METHODS: We conducted a cross-sectional survey of adult outpatients (aged \u3e /=18 years) at an academic outpatient HF clinic in the Midwest. The survey comprised 34 questions assessing patient demographics, ownership of smartphones and other mHealth devices, frequently used smartphone features, use of mHealth apps, and interest in using mHealth technologies for vital sign and HF symptom self-monitoring and management.
RESULTS: A total of 144 patients were approached, of which 100 (69.4%) participated in the study (63/100, 63% women). The participants had a mean age of 61.3 (SD 12.25) years and were predominantly Black or African American (61/100, 61%) and Hispanic or Latino (18/100, 18%). Almost all participants (93/100, 93%) owned a cell phone. The share of patients who owned a smartphone was 68% (68/100). Racial and ethnic minorities that identified as Black or African American or Hispanic or Latino reported higher smartphone ownership rates compared with White patients with HF (45/61, 74% Black or African American and 11/18, 61% Hispanic or Latino vs 9/17, 53% White). There was a moderate and statistically significant association between smartphone ownership and age (Cramer V [PhiC]=0.35; P \u3c .001), education (PhiC=0.29; P=.001), and employment status (PhiC=0.3; P=.01). The most common smartphone features used by the participants were SMS text messaging (51/68, 75%), internet browsing (43/68, 63%), and mobile apps (41/68, 60%). The use of mHealth apps and wearable activity trackers (eg, Fitbits) for self-monitoring of HF-related parameters was low (15/68, 22% and 15/100, 15%, respectively). The most popular HF-related self-care measures participants would like to monitor using mHealth technologies were physical activity (46/68, 68%), blood pressure (44/68, 65%), and medication use (40/68, 59%).
CONCLUSIONS: Most patients with HF have smartphones and are interested in using commercial mHealth apps and connected health devices to self-monitor their condition. Thus, there is a great opportunity to capitalize on the high smartphone ownership among racial and ethnic minority patients to increase reach and enhance HF self-management through mHealth interventions
Leucine Rich α-2 Glycoprotein: A Novel Neutrophil Granule Protein and Modulator of Myelopoiesis
Leucine-rich α2 glycoprotein (LRG1), a serum protein produced by hepatocytes, has been implicated in angiogenesis and tumor promotion. Our laboratory previously reported the expression of LRG1 in murine myeloid cell lines undergoing neutrophilic granulocyte differentiation. However, the presence of LRG1 in primary human neutrophils and a role for LRG1 in regulation of hematopoiesis have not been previously described. Here we show that LRG1 is packaged into the granule compartment of human neutrophils and secreted upon neutrophil activation to modulate the microenvironment. Using immunofluorescence microscopy and direct biochemical measurements, we demonstrate that LRG1 is present in the peroxidase-negative granules of human neutrophils. Exocytosis assays indicate that LRG1 is differentially glycosylated in neutrophils, and co-released with the secondary granule protein lactoferrin. Like LRG1 purified from human serum, LRG1 secreted from activated neutrophils also binds cytochrome c. We also show that LRG1 antagonizes the inhibitory effects of TGFβ1 on colony growth of human CD34+ cells and myeloid progenitors. Collectively, these data invoke an additional role for neutrophils in innate immunity that has not previously been reported, and suggest a novel mechanism whereby neutrophils may modulate the microenvironment via extracellular release of LRG1
A System for Performing High Throughput Assays of Synaptic Function
Unbiased, high-throughput screening has proven invaluable for dissecting complex biological processes. Application of this general approach to synaptic function would have a major impact on neuroscience research and drug discovery. However, existing techniques for studying synaptic physiology are labor intensive and low-throughput. Here, we describe a new high-throughput technology for performing assays of synaptic function in primary neurons cultured in microtiter plates. We show that this system can perform 96 synaptic vesicle cycling assays in parallel with high sensitivity, precision, uniformity, and reproducibility and can detect modulators of presynaptic function. By screening libraries of pharmacologically defined compounds on rat forebrain cultures, we have used this system to identify novel effects of compounds on specific aspects of presynaptic function. As a system for unbiased compound as well as genomic screening, this technology has significant applications for basic neuroscience research and for the discovery of novel, mechanism-based treatments for central nervous system disorders
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