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1.
Am Psychol ; 78(4): 428-440, 2023.
Article in English | MEDLINE | ID: mdl-37384498

ABSTRACT

A. Wade Boykin's scholarship has provided key insights into the psychological realities of racially minoritized people and catalyzed revolutionary changes in psychology and education. Combining insights from personal and research experiences, Boykin authored the foundational triple quandary (TQ), a framework describing how Black Americans must navigate the often conflicting values and priorities of dominant mainstream society, the heritage culture of Black communities, and dynamics associated with being racially minoritized. TQ describes the unique developmental challenges faced by Black children, for whom misalignment between home cultural socialization and U.S. schooling often leads to pathologizing mischaracterizations of their attitudes and behaviors, resulting in chronic academic opportunity gaps. Boykin used his training as an experimental psychologist to empirically test the validity and explanatory utility of the TQ framework and to determine whether Black cultural values could be leveraged to improve student learning. Focusing on cultural values such as expressive movement, verve, and communalism, studies with his collaborators consistently supported Boykin's framework and predictions for improving Black student achievement-related outcomes. Beginning in the early 2000s, Boykin and his colleagues began to scale the lessons of decades of empirical work into the talent quest model for school reform. The TQ and talent quest continue to evolve in their application, as scholars and practitioners have found them relevant to a diverse range of minoritized populations in American society and beyond. Boykin's work continues to bear on the scholarship, career outcomes, and day-to-day lives of many scholars, administrators, practitioners and students across disciplines and institutions. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Subject(s)
Black or African American , Culture , Ethnic and Racial Minorities , Models, Psychological , Psychology , Racism , Child , Humans , Academic Success , Black People/education , Black People/history , Black People/psychology , Education/history , Educational Status , Ethnic and Racial Minorities/education , Ethnic and Racial Minorities/history , Ethnic and Racial Minorities/psychology , History, 21st Century , Psychology/education , Psychology/history , Racism/ethnology , Racism/psychology , Schools , Social Behavior/history , Students/psychology , United States , Black or African American/education , Black or African American/history , Black or African American/psychology
2.
Perspect Psychol Sci ; 18(1): 39-47, 2023 01.
Article in English | MEDLINE | ID: mdl-35687742

ABSTRACT

This is a Lewinian-field-theory approach to understanding the Graduate Record Examination (GRE) in the context of racism to contribute to the debate about whether graduate schools should remove GRE scores from admissions processes. Woo and colleagues (this issue) review the empirical literature on bias from a psychometric perspective. In this commentary, I challenge the definition of the underlying construct measured by the GRE and offer alternative definitions of what is measured. Next, drawing on an analogy from genome-wide association studies, I discuss how genomic models predicting height that are trained on data from European ancestral populations systematically underpredict the height of West Africans. Our access to data from tape measures, and their correlation with height, provide objective opportunities to audit our prediction. I discuss the implications of this when the criterion variable for validating the GRE is first-year grades. I then probe an analogy used by Woo and colleagues in which they assert that blaming the GRE for disparities in scores across groups is akin to blaming the thermometer for global warming. I describe racism as context for a field-theory approach to thinking about the limitations of this misguided analogy. Finally, I suggest pathways forward.


Subject(s)
Mercury , Racism , Humans , Educational Measurement , Genome-Wide Association Study , Schools
3.
PLoS One ; 14(1): e0210698, 2019.
Article in English | MEDLINE | ID: mdl-30629706

ABSTRACT

Boutwell, Nedelec, Winegard, Shackelford, Beaver, Vaughn, Barnes, & Wright (2017) published an article in this journal that interprets data from the Add Health dataset as showing that only one-quarter of individuals in the United States experience discrimination. In Study 1, we attempted to replicate Boutwell et al.'s findings using a more direct measure of discrimination. Using data from the Pew Research Center, we examined a large sample of American respondents (N = 3,716) and explored the prevalence of discrimination experiences among various racial groups. Our findings stand in contrast to Boutwell et al.'s estimates, revealing that between 50% and 75% of Black, Hispanic, and Asian respondents (depending on the group and analytic approach) reported discriminatory treatment. In Study 2, we explored whether question framing affected how participants responded to Boutwell's question about experiencing less respect and courtesy. Regardless of question framing, non-White participants reported more experiences than White participants. Further, there was an interaction of participant race and question framing such that when participants were asked about experiences of less respect or courtesy broadly, there were no differences between non-White participants and White participants, but when they were asked about experiences that were specifically race-based, non-White participants reported more experiences than White participants. The current research provides a counterweight to the claim that discrimination is not a prevalent feature of the lives of minority groups and the serious implications this claim poses for research and public policy.


Subject(s)
Racism/statistics & numerical data , Black or African American , Asian People , Black People , Female , Hispanic or Latino , Humans , Male , Prevalence , United States , White People
4.
PLoS One ; 13(4): e0194123, 2018.
Article in English | MEDLINE | ID: mdl-29617368

ABSTRACT

Research suggests that interracial mentoring relationships are strained by negative affect and low rapport. As such, it stands to reason that strategies that decrease negative affect and increase rapport should improve these relationships. However, previous research has not tested this possibility. In video-chats (Studies 1 and 2) and face-to-face meetings (Study 3), we manipulated the degree of mutual self-disclosure between mentees and mentors, a strategy that has been shown to reduce negative affect and increase rapport. We then measured negative affect and rapport as mediators, and mentee performance (quality of speech delivered; Studies 1 and 3) and mentor performance (warmth and helpfulness; Studies 2 and 3) as key outcomes. Results revealed that increased self-disclosure decreased negative affect and increased rapport for both mentees and mentors. Among mentees, decreased negative affect predicted better performance (Studies 1 and 3). Among mentors, increased rapport predicted warmer feedback (Studies 2 and 3). These effects remained significant when we meta-analyzed data across studies (Study 4), and also revealed the relationship of rapport to more helpful feedback. Findings suggest that affect and rapport are key features in facilitating positive outcomes in interracial mentoring relationships.


Subject(s)
Interprofessional Relations , Mentoring , Trust , Adult , Female , Humans , Interpersonal Relations , Male , Mentoring/methods , Mentors , Race Relations , Self Disclosure
5.
J Anim Sci ; 95(7): 3003-3011, 2017 Jul.
Article in English | MEDLINE | ID: mdl-28727107

ABSTRACT

The instrument grading assessment portion of the National Beef Quality Audit (NBQA) - 2016 allows the unique opportunity to evaluate beef carcass traits over the course of a year. One week of instrument grading data was collected each month from 5 beef processing corporations encompassing 18 facilities from January 2016 through December 2016 ( = 4,544,635 carcasses). Mean USDA yield grade (YG) was 3.1 with 1.37 cm fat thickness (FT), 88.9 cm LM area, 393.6 kg HCW, and 2.1% KPH. Frequency distribution of USDA YG was 9.5% YG 1, 34.6% YG 2, 38.8% YG 3, 14.6% YG 4, and 2.5% YG 5. Increases in HCW and FT since the NBQA-2011 were major contributors to differences in mean YG and the (numerically) increased frequency of YG 3, 4, and 5 carcasses found in the current audit. Mean marbling score was Small, and the distribution of USDA quality grades was 4.2% Prime, 71.4% Choice, 21.7% Select, and 2.7% other. Frequency of carcasses grading Prime on Monday (6.43%) was numerically higher than the average frequency of carcasses grading Prime overall (4.2%). Monthly HCW means were 397.6 kg in January, 397.2 kg in February, 396.5 kg in March, 389.3 kg in April, 384.8 kg in May, 385.0 kg in June, 386.1 kg in July, 394.1 kg in August, 399.1 kg in September, 403.9 kg in October, 406.5 kg in November, and 401.9 kg in December. Monthly mean marbling scores were Small in January, Small in February, Small in March, Small in April, Small in May, Small in June, Small in July, Small in August, Small in September, Small in October, Small in November, and Small in December. Both mean HCW and mean marbling score declined in the months of May and June. The month with the greatest numerical frequency of dark cutters was October (0.74%). Comparison of overall data from in-plant carcass and instrument grading assessments revealed close alignment of information, especially for YG (3.1 for in-plant assessment versus 3.1 for instrument grading) and marbling (Small for in-plant assessment versus Small for instrument grading). These findings allow the beef industry access to the greatest volume of beef value-determining characteristics for the U.S. fed steer and heifer population than ever reported, resulting in potentially more precise targeting of future quality and consistency efforts.


Subject(s)
Cattle/physiology , Red Meat/standards , Animals , Body Composition , Cattle/growth & development , Female , Male , Surveys and Questionnaires , United States
6.
J Anim Sci ; 95(7): 2993-3002, 2017 Jul.
Article in English | MEDLINE | ID: mdl-28727109

ABSTRACT

The National Beef Quality Audit (NBQA)-2016 used in-plant cooler assessments to benchmark the current status of the fed steer and heifer beef industry in the United States. In-plant cooler assessments ( = 9,106 carcasses) were conducted at 30 facilities, where approximately 10% of a single day's production were evaluated for USDA quality grade (QG) and yield grade (YG) factors. Frequencies of evaluated traits were 66.5% steer and 33.4% heifer sex classes and 82.9% native, 15.9% dairy-type, and 1.2% estimated breed types. Mean USDA YG factors were 1.42 cm for adjusted fat thickness, 89.5 cm for LM area, 390.3 kg for HCW, and 1.9% for KPH. Mean USDA YG was 3.1, with a frequency distribution of 9.6% YG 1, 36.7% YG 2, 39.2% YG 3, 12.0% YG 4, and 2.5% YG 5. Mean USDA QG traits were Small for marbling score, A for overall maturity, A55 for lean maturity, and A for skeletal maturity. Mean USDA QG was Select with a frequency distribution of QG of 3.8% Prime, 67.3% Choice, 23.2% Select, and 5.6% lower score. Lower score included dark cutter (1.9%), blood splash (0.1%), and hard bone, which are USDA overall maturity scores of C or older (1.8%). Marbling score distributions were 0.85% Slightly Abundant or greater, 7.63% Moderate, 23.54% Modest, 39.63% Small, 23.62% Slight, and 0.83% Traces or less. Carcasses that were Choice or Select and USDA YG 2 or 3 accounted for 70.7% of the carcasses evaluated. Compared with the previous NBQA, we found a numerical increase in mean USDA YG, USDA QG, adjusted fat thickness, HCW, LM area, and marbling score with an increase in dairy-type carcasses and percentage of carcasses grading USDA Prime and Choice as well as frequency of USDA YG 4 and 5. The findings from this study will be used by all segments of the industry to understand and improve the quality of fed steer and heifer beef that is being produced.


Subject(s)
Cattle/physiology , Red Meat/standards , Animals , Body Composition , Breeding , Cattle/growth & development , Female , Male , Surveys and Questionnaires , United States
7.
Transl Anim Sci ; 1(2): 229-238, 2017 Apr.
Article in English | MEDLINE | ID: mdl-32704647

ABSTRACT

The National Beef Quality Audit-2016 (NBQA-2016) was conducted to assess current transportation, mobility, and quality characteristics of U.S. fed steers and heifers. Data were collected at 17 beef processing facilities between March and November 2016. About 8,000 live cattle were evaluated for transportation and mobility, and about 25,000 carcasses were evaluated on the slaughter floor. Cattle were in transit to the slaughter facility for a mean duration of 2.7 h from a mean distance of 218.5 km using trailers with dimensions ranging from 17.84 m2 to 59.09 m2. Area allotted per animal averaged 1.13 m2 and ranged from 0.85 m2 to 2.28 m2. A total of 96.8% of cattle received a mobility score of 1 (walks easily, no apparent lameness). Identification types (35.1% had multiple) were lot visual tags (61.5%), individual tags (55.0%), electronic tags (16.9%), metal-clip tags (9.2%), bar-coded tags (0.05%), wattles (0.01%), and other (2.6%). Cattle were black-hided (57.8%), Holstein (20.4%), red-hided (10.5%), yellow-hided (4.8%), gray-hided (2.9%), brown-hided (1.3%), and white-hided (1.1%). Unbranded hides were observed on 74.3% of cattle; 18.6% had brands located on the butt, 6.3% on the side, and 1.3% on the shoulder (values exceed 100% due to multiple brands). For hide-on carcasses, 37.7% displayed no mud or manure; specific locations for mud or manure were legs (40.8%), belly (33.0%), tail region (15.5%), side (6.8%), and top-line (3.9%). Cattle without horns represented 83.3% of the sample, and cattle that did have horns measured: < 2.54 cm (5.5%), 2.54 to 12.7 cm (8.3%), and > 12.7 cm (2.9%). Carcasses without bruises represented 61.1% of those sampled, whereas 28.2% had 1, 8.2% had 2, 2.1% had 3, and 0.3% had 4 bruises. Of those carcasses with a bruise, the bruise was located on the loin (29.7%), round (27.8%), chuck (16.4%), rib (14.4%), and brisket/plate/flank (11.6%). Frequencies of offal condemnations were livers (30.8%), lungs (18.2%), viscera (16.3%), hearts (11.1%), heads (2.7%), and tongues (2.0%). Compared to NBQA-2011, fewer cattle were identified for traceability, fewer were black-hided, a greater number were Holstein cattle, more with no brand and no horns, fewer without bruises, more liver, lung, and viscera condemnations, and fewer heads and tongues were condemned. The NBQA remains an influential survey for the U.S. beef industry to provide benchmarks and strategic plans for continued improvement of beef quality and consistency.

8.
Transl Anim Sci ; 1(3): 320-332, 2017 Sep.
Article in English | MEDLINE | ID: mdl-32704657

ABSTRACT

The National Beef Quality Audit (NBQA) is conducted every 5 yr and was most recently again conducted in 2016. Face-to-face interviews gauged progress in quality associated with live cattle production using procedures first utilized in NBQA 2011. The 2016 NBQA was the first in which interviews concerning fed steers and heifers were combined with an audit of market cow and bull beef. Face-to-face interviews were designed to illicit definitions for beef quality, estimate willingness to pay (WTP) for quality attributes, establish relative importance rankings for important quality factors, and assess images, strengths, weaknesses, potential threats, and shifting trends in the beef industry since the 2011 audit. Individuals making purchasing decisions in 5 market sectors of the steer/heifer and cow/bull beef supply chain were interviewed, including packers (n = 36), retailers (including large and small supermarket companies and warehouse food sales companies; n = 35), food service operators (including quick-serve, full-service, and institutional establishments; n = 29), further processors (n = 64), and peripherally-related government and trade organizations (GTO; n = 30). Face-to-face interviews were conducted between January and November of 2016 using a designed dynamic routing system. Definitions (as described by interviewees) for 7 pre-determined quality factors, including: (1) How and where the cattle were raised, (2) Lean, fat, and bone, (3) Weight and size, (4) Visual characteristics, (5) Food safety, (6) Eating satisfaction, and (7) Cattle genetics were recorded verbatim and categorized into similar responses for analysis. Compared to NBQA-2011, a higher percentage of companies were willing to pay premiums for guaranteed quality attributes, but overall were willing to pay lower average premiums than the companies interviewed in 2011. Food safety had the highest share of preference among all interviewees, generating a double-digit advantage over any other quality factor. The 2 beef industries have an overall positive image among interviewees, and despite lingering weaknesses, product quality continued to be at the forefront of the strengths category for both steer and heifer beef and market cow and bull beef.

9.
Transl Anim Sci ; 1(4): 570-584, 2017 Dec.
Article in English | MEDLINE | ID: mdl-32704679

ABSTRACT

The National Beef Quality Audit-2016 marks the fourth iteration in a series assessing the quality of live beef and dairy cows and bulls and their carcass counterparts. The objective was to determine the incidence of producer-related defects, and report cattle and carcass traits associated with producer management. Conducted from March through December of 2016, trailers (n = 154), live animals (n = 5,470), hide-on carcasses (n = 5,278), and hide-off hot carcasses (n = 5,510) were surveyed in 18 commercial packing facilities throughout the United States. Cattle were allowed 2.3 m2 of trailer space on average during transit indicating some haulers are adhering to industry handling guidelines for trailer space requirements. Of the mixed gender loads arriving at processing facilities, cows and bulls were not segregated on 64.4% of the trailers surveyed. When assessed for mobility, the greatest majority of cattle surveyed were sound. Since the inception of the quality audit series, beef cows have shown substantial improvements in muscle. Today over 90.0% of dairy cows are too light muscled. The mean body condition score for beef animals was 4.7 and for dairy cows and bulls was 2.6 and 3.3, respectively. Dairy cattle were lighter muscled, yet fatter than the dairy cattle surveyed in 2007. Of cattle surveyed, most did not have horns, nor any visible live animal defects. Unbranded hides were observed on 77.3% of cattle. Carcass bruising was seen on 64.1% of cow carcasses and 42.9% of bull carcasses. However, over half of all bruises were identified to only be minor in severity. Nearly all cattle (98.4%) were free of visible injection-site lesions. Current results suggest improvements have been made in cattle and meat quality in the cow and bull sector. Furthermore, the results provide guidance for continued educational and research efforts for improving market cow and bull beef quality.

10.
Oncogene ; 34(12): 1542-52, 2015 Mar 19.
Article in English | MEDLINE | ID: mdl-24727894

ABSTRACT

Mutations of Wnt/ß-catenin signaling pathway has essential roles in development and cancer. Although ß-catenin and adenomatous polyposis coli (APC) gene mutations are well established and are known to drive tumorigenesis, discoveries of mutations in other components of the pathway lagged, which hinders the understanding of cancer mechanisms. Here we report that δ-catenin (gene designation: CTNND2), a primarily neural member of the ß-catenin superfamily that promotes canonical Wnt/ß-catenin/LEF-1-mediated transcription, displays exonic mutations in human prostate cancer and promotes cancer cell survival adaptation and metabolic reprogramming. When overexpressed in cells derived from prostate tumor xenografts, δ-catenin gene invariably gives rise to mutations, leading to sequence disruptions predicting functional alterations. Ectopic δ-catenin gene integrating into host chromosomes is locus nonselective. δ-Catenin mutations promote tumor development in mouse prostate with probasin promoter (ARR2PB)-driven, prostate-specific expression of Myc oncogene, whereas mutant cells empower survival advantage upon overgrowth and glucose deprivation. Reprogramming energy utilization accompanies the downregulation of glucose transporter-1 and poly (ADP-ribose) polymerase cleavage while preserving tumor type 2 pyruvate kinase expression. δ-Catenin mutations increase ß-catenin translocation to the nucleus and hypoxia-inducible factor 1α (HIF-1α) expression. Therefore, introducing δ-catenin mutations is an important milestone in prostate cancer metabolic adaptation by modulating ß-catenin and HIF-1α signaling under glucose shortage to amplify its tumor-promoting potential.


Subject(s)
Catenins/genetics , Glucose/metabolism , Prostatic Neoplasms/pathology , beta Catenin/metabolism , Animals , Catenins/metabolism , Cell Line, Tumor , Cell Transformation, Neoplastic/metabolism , Energy Metabolism , Humans , Male , Mice , Mutation , Neoplasm Transplantation , Prostatic Neoplasms/genetics , Prostatic Neoplasms/metabolism , Wnt Signaling Pathway , Delta Catenin
11.
Br J Cancer ; 104(5): 781-9, 2011 Mar 01.
Article in English | MEDLINE | ID: mdl-21304528

ABSTRACT

BACKGROUND: Cucurbitacin (Cuc) and triterpene-derived natural products exhibit anti-cancer potential in addition to their conspicuous anti-bacterial and anti-inflammatory activity. Recently, inhibition of Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) signaling was shown to underlie the effects of Cuc family on inducing cell death in cancer. METHOD: We purified Cuc IIa, the active component from the medicinal plant Hemsleya amalils Diels, which shows different structural modifications from other Cuc derivatives. We investigated the mechanisms of its inhibitory effects on cancer cells in vitro and tumour growth in vivo. RESULTS: Cuc IIa induced the irreversible clustering of filamentous actin and arrested cell cycle by the increases in G2/M populations. Cuc IIa resulted in the reduced phospho-Histone H3 and markedly increased cleavage of poly-(ADP-ribose) polymerase or PARP, immediate upstream of DNA breakdown as the result of caspase activation, consistent with mitotic blockage-induced cell death. However, unlike other Cuc members, Cuc IIa did not suppress JAK2/STAT3 phosphorylation or alter phosphorylation of mitogen-activated protein kinases. Instead, the expression of the cell cycle-regulated Inhibitor of Apoptosis Protein (IAP) survivin was reduced. Introducing oncoprotein δ-catenin, which increased survivin expression and suppressed small GTPase RhoA, reduced efficacy of Cuc IIa to induce cell death. Supporting the effects of Cuc IIa on actin cytoskeletal signaling, RhoA phosphorylation was reduced suggesting its increased activity. CONCLUSION: Cuc IIa is a novel class of anti-cancer drug in suppression of cancer cell expansion by disrupting the actin cytoskeleton and directing the cell to undergo PARP-mediated apoptosis through the inhibition of survivin downstream of JAK2/STAT3.


Subject(s)
Antineoplastic Agents/pharmacology , Cucurbitacins/pharmacology , Janus Kinase 2/metabolism , STAT3 Transcription Factor/metabolism , Actins/metabolism , Animals , Antineoplastic Agents/therapeutic use , Cell Line, Tumor , Cucurbitacins/therapeutic use , Humans , Inhibitor of Apoptosis Proteins/metabolism , Mice , Microtubule-Associated Proteins/metabolism , Phosphorylation , Repressor Proteins/metabolism , Signal Transduction , Survivin
12.
Postgrad Med ; 91(2): 130-4, 143-50, 1992 Feb 01.
Article in English | MEDLINE | ID: mdl-1738734

ABSTRACT

The risks and benefits of regular aerobic exercise have been studied extensively. Because of the potential risks, we believe that sedentary persons over age 40 who have cardiac risk factors, as well as patients with coronary artery disease (CAD), should have a complete physical examination and probably an exercise electrocardiogram before starting a vigorous exercise program. In general, however, regular exercise has proven to be extra-ordinarily safe and the theoretical and proven benefits appear to greatly outweigh the risks in most people, including those with CAD, those with severe left ventricular dysfunction, and the elderly.


Subject(s)
Coronary Disease/therapy , Exercise , Coronary Disease/prevention & control , Coronary Disease/rehabilitation , Death, Sudden/etiology , Exercise Therapy , Hemodynamics , Humans , Running
13.
Vt Regist Nurse ; : 2-5, 1979 Jul.
Article in English | MEDLINE | ID: mdl-261499

Subject(s)
Nursing , Female , Humans , United States
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