Black and Blue

Author(s):  
James L. Gibson ◽  
Michael Nelson

It is not hyperbole to proclaim that a crisis of legal legitimacy exists in the relationships between African Americans and the law and legal authorities and institutions that govern them. However, this legitimacy deficit has largely (but not exclusively) been documented through anecdotal evidence and a steady drumbeat of journalistic reports, but not rigorous scientific research. We posit that both experiences and in-group identities are commanding because they influence the ways in which black people process information, and in particular, the ways in which blacks react to the symbols of legal authority (e.g., judges’ robes). Based on two nationally-representative samples, this book ties together four dominant theories of public opinion: Legitimacy Theory, Social Identity Theory, theories of adulthood political socialization and learning through experience, and information processing theories, especially the Theory of Motivated Reasoning and theories of System 1 and System 2 information processing. Our findings reveal a gaping chasm in legal legitimacy between black and white Americans. More importantly, black people themselves differ in their legal legitimacy. Group identities and experiences with legal authorities play a crucial role in shaping whether and how black people extend legitimacy to the legal institutions that so much affect them.

Author(s):  
James L. Gibson ◽  
Michael J. Nelson

Despite popular reports that the legal system is in a state of crisis with respect to its African American constituents, research on black public opinion in general is limited owing to the difficulty and expense of assembling representative samples of minorities. We suspect that the story of lagging legal legitimacy among African Americans is in fact quite a bit more nuanced than is often portrayed. In particular, black public opinion is unlikely to be uniform and homogeneous; black people most likely vary in their attitudes toward law and legal institutions. Especially significant is variability in the experiences—personal and vicarious—black people have had with legal authorities (e.g., “stop-and-frisk”), and the nature of individuals’ attachment to blacks as a group (e.g., “linked fate”). We posit that both experiences and in-group identities are commanding because they influence the ways in which black people process information, and in particular, the ways in which blacks react to the symbols of legal authority (e.g., judges’ robes).


2018 ◽  
Vol 71 (4) ◽  
pp. 960-974 ◽  
Author(s):  
Bryan Wilcox-Archuleta

In-group identity is particularly important in understanding political behavior among minority populations living in the United States. Despite its importance, we know relativity little about what explains variation in perceptions of group identity among U.S.-based minority groups. I develop a theoretical framework drawing extensively for social identity theory to explain development of in-group identities among Latinos in the United States. I suggest the availability of neighborhood-level ethnic stimuli increases the likelihood that Latinos will come to see themselves a part of pan-ethnic group rather than a unique individual. I use the 2008 Collaborative Multi-Racial Political Survey (CMPS), a nationally representative public opinion poll of registered voters with oversamples of Latino respondents. I find that the availability of ethnic stimuli positively associates with stronger perceptions of group identity among Latinos. Latinos who live in contexts rich with ethnic stimuli and cues are more likely to adopt in-group identities than those who live in environments lacking ethnically salient resources.


Author(s):  
James L. Gibson ◽  
Michael J. Nelson

Black and white Americans hold vastly different explicit attitudes about law, justice, and the legal system. But to what extent are the views of blacks toward the legal system homogeneous? We argue that identities and experiences color the extent to which blacks exhibit high levels of support for the legal system. First, we discuss how both personal and vicarious experiences with the legal system vary among blacks, and explain how individuals who have had more negative experiences with the legal system may be less likely to support it. Second, drawing from a rich and developing literature on race and politics, we catalog variation in feelings of linked fate and group identification among blacks. Relying on a nationally-representative survey of blacks, we demonstrate that these two forms of group attachments are surprisingly different.


2015 ◽  
Vol 2 (2) ◽  
pp. 85-94
Author(s):  
Christina Landman

Dullstroom-Emnotweni is the highest town in South Africa. Cold and misty, it is situated in the eastern Highveld, halfway between the capital Pretoria/Tswane and the Mozambique border. Alongside the main road of the white town, 27 restaurants provide entertainment to tourists on their way to Mozambique or the Kruger National Park. The inhabitants of the black township, Sakhelwe, are remnants of the Southern Ndebele who have lost their land a century ago in wars against the whites. They are mainly dependent on employment as cleaners and waitresses in the still predominantly white town. Three white people from the white town and three black people from the township have been interviewed on their views whether democracy has brought changes to this society during the past 20 years. Answers cover a wide range of views. Gratitude is expressed that women are now safer and HIV treatment available. However, unemployment and poverty persist in a community that nevertheless shows resilience and feeds on hope. While the first part of this article relates the interviews, the final part identifies from them the discourses that keep the black and white communities from forming a group identity that is based on equality and human dignity as the values of democracy.


Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 264
Author(s):  
Kathryn E. Ritz ◽  
Bradley J. Heins ◽  
Roger D. Moon ◽  
Craig C. Sheaffer ◽  
Sharon L. Weyers

Organic dairy cows were used to evaluate the effect of two organic pasture production systems (temperate grass species and warm-season annual grasses and cool-season annuals compared with temperate grasses only) across two grazing seasons (May to October of 2014 and 2015) on milk production, milk components (fat, protein, milk urea nitrogen (MUN), somatic cell score (SCS)), body weight, body condition score (BCS), and activity and rumination (min/day). Cows were assigned to two pasture systems across the grazing season at an organic research dairy in Morris, Minnesota. Pasture System 1 was cool-season perennials (CSP) and Pasture System 2 was a combination of System 1 and warm-season grasses and cool-season annuals. System 1 and System 2 cows had similar milk production (14.7 and 14.8 kg d−1), fat percentage (3.92% vs. 3.80%), protein percentage (3.21% vs. 3.17%), MUN (12.5 and 11.5 mg dL−1), and SCS (4.05 and 4.07), respectively. Cows in System 1 had greater daily rumination (530 min/day) compared to cows in System 2 (470 min/day). In summary, warm-season annual grasses may be incorporated into grazing systems for pastured dairy cattle.


Plant Disease ◽  
2001 ◽  
Vol 85 (8) ◽  
pp. 895-900 ◽  
Author(s):  
B. M. Wu ◽  
K. V. Subbarao ◽  
A. H. C. van Bruggen ◽  
S. T. Koike

Lettuce growers in coastal California have relied mainly on protective fungicide sprays to control downy mildew. Thus, timing of sprays before infection is critical for optimal results. A leaf-wetness-driven, infection-based advisory system, previously developed, did not always perform satisfactorily. In this study, the advisory system was modified by incorporating a pathogen survival component (system 1) or both survival and sporulation components (system 2). These systems were then evaluated in commercial lettuce fields in coastal California during 1996-1998. Three or four treatments were carried out in each field: (i) no spray; (ii) sprays as scheduled by the growers; (iii) sprays following modified system 1; and (iv) sprays following the original advisory system (1996) or modified system 2 (1998). Downy mildew incidence was evaluated every 2 to 9 days. In fields with drip irrigation, the number of fungicide applications was reduced by one or two regardless of the advisory system used compared to the grower's calendar-based schedule, although one unnecessary spray was recommended in 1996 at Soledad and 1997 at Salinas. Under all three systems, disease levels were low (incidence <25% and about 1 lesion per plant) for fields with drip irrigation, but not for fields with sprinklers (incidence up to 100% and 5 to 10 lesions per plant). For the first time, we established that survival and sporulation components are not needed for a lettuce downy mildew forecasting system. Instead, a threshold with a shorter period of morning leaf wetness and high temperatures were found to have potential for improving forecasting efficiency.


2021 ◽  
Author(s):  
Mizuho Mori ◽  
Yoshiko Ariji ◽  
Motoki Fukuda ◽  
Tomoya Kitano ◽  
Takuma Funakoshi ◽  
...  

Abstract Objectives The aim of the present study was to create and test an automatic system for assessing the technical quality of positioning in periapical radiography of the maxillary canines using deep learning classification and segmentation techniques. Methods We created and tested two deep learning systems using 500 periapical radiographs (250 each of good- and bad-quality images). We assigned 350, 70, and 80 images as the training, validation, and test datasets, respectively. The learning model of system 1 was created with only the classification process, whereas system 2 consisted of both the segmentation and classification models. In each model, 500 epochs of training were performed using AlexNet and U-net for classification and segmentation, respectively. The segmentation results were evaluated by the intersection over union method, with values of 0.6 or more considered as success. The classification results were compared between the two systems. Results The segmentation performance of system 2 was recall, precision, and F measure of 0.937, 0.961, and 0.949, respectively. System 2 showed better classification performance values than those obtained by system 1. The area under the receiver operating characteristic curve values differed significantly between system 1 (0.649) and system 2 (0.927). Conclusions The deep learning systems we created appeared to have potential benefits in evaluation of the technical positioning quality of periapical radiographs through the use of segmentation and classification functions.


Author(s):  
Leah Christiani ◽  
Christopher J. Clark ◽  
Steven Greene ◽  
Marc J. Hetherington ◽  
Emily M. Wager

Abstract To contain the spread of COVID-19, experts emphasize the importance of wearing masks. Unfortunately, this practice may put black people at elevated risk for being seen as potential threats by some Americans. In this study, we evaluate whether and how different types of masks affect perceptions of black and white male models. We find that non-black respondents perceive a black male model as more threatening and less trustworthy when he is wearing a bandana or a cloth mask than when he is not wearing his face covering—especially those respondents who score above average in racial resentment, a common measure of racial bias. When he is wearing a surgical mask, however, they do not perceive him as more threatening or less trustworthy. Further, it is not that non-black respondents find bandana and cloth masks problematic in general. In fact, the white model in our study is perceived more positively when he is wearing all types of face coverings. Although mandated mask wearing is an ostensibly race-neutral policy, our findings demonstrate the potential implications are not.


2018 ◽  
Vol 55 (3) ◽  
pp. 272-290
Author(s):  
Siduri J Haslerig ◽  
Rican Vue ◽  
Sara E Grummert

As the most watched college sport broadcast of all time, the US Entertainment and Sports Programming Network (ESPN)’s College GameDay (CGD) is one source of socialization that primes US audiences to make certain associations. Through disaggregated analysis of regular- and post-season CGD pre-game and game-of-the-week broadcasts during the 2016 football season, the authors examine the coverage of players’ physicality and injuries, contrasting the portrayals of Black and white American football players. The paper documents prominent narratives that promoted Black players as relatively invulnerable, while making the case that these narratives serve to prime audiences to ascribe inhuman abilities to Black people and thereby reinforce white supremacist ideology.


1989 ◽  
Vol 156 ◽  
Author(s):  
E. Takayama-Muromachi

ABSTRACTSince the discovery of the high-Tc superconductor in the La-Ba-Cu-O system [1], a great deal of experimental and theoretical effort have been made to clarify the nature of the Cu-based oxides. In order to elucidate mechanism of the high-Tc superconductivity, discovery of a new type of superconductor is no doubt of great importance. Recently, Akimitsu et al. found a new oxide superconductor in the Nd-Ce-Sr-Cu-O system [2]. Soon after their discovery, the superconducting phase was isolated and identified [3]. It has a tetragonal cell with space group P4/nmm and has a structure closely related to but different from the K2NiF4− or T'-Nd2CuO4− -type structure. Although, Tc of the Nd-Ce-Sr-Cu oxide is not so high (ca. 20 K) compared with the 1–2–3 or Bi(Tl)-based superconductors, it has aroused interest widely due to a very simple crystal structure. In this article, I will discuss superconductivity and crystal chemistry of the Nd-Ce-Sr-Cu oxide. Also, various compounds isostructural to it will be presented.


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