The reigning misperception about culture and Asian American achievement

ABSTRACT

Asian Americans graduate from college at higher rates than other groups, and evince educational outcomes that match or exceed those of their parents. They comprise about 25 per cent of the student body in Ivy League institutions, despite making up only 6 per cent of the U.S. population. While it may be tempting to reduce Asian American academic achievement to Asian culture, and Confucian values more specifically, we provide disconfirming evidence, both within the United States and beyond, to show the fallacy of this logic. Contemporary U.S. Asian immigrants are “hyper-selected”: they are more likely to have graduated from college than their non-migrant counterparts, and also more likely to be college-educated than the U.S. mean. Hyper-selectivity and its spillover effects explain the exceptional educational outcomes of Asian Americans. It is time that we laid to rest the reigning misperception that Asian American academic achievement can be reduced to Asian culture or Confucian values.     

Bringing culture back in: the class origins and ethnoracial destinations of culture and achievement

ABSTRACT

Notably absent from assimilation scholarship are analyses that seriously engage, rather than dismiss, cultural explanations for differences in group outcomes. That dismissal has left the assimilation scholars ill-equipped to thoroughly respond to popular and quasi-academic explanations that rely on an all-encompassing view of culture to explain immigrant group differences in socioeconomic outcomes. Jennifer Lee and Min Zhou’s The Asian American Achievement Paradox embraces the cultural explanation, but traces the root of an ethnoracial culture to its class origins. In so doing, Lee and Zhou force scholars to contend seriously with ‘culture’ as part of a larger explanation for group outcomes.     

Ethnic culture and social mobility among second-generation Asian Americans

ABSTRACT

This review engages with Jennifer Lee and Min Zhou’s The Asian American Achievement Paradox to consider how ethnic culture matters for social mobility among the immigrant second generation. It describes the strengths and contributions of the book, connects it to broader debates on culture, poverty, and mobility, and draws on my own research on the second generation in New York City. It highlights three additional cultural mechanisms that underlie the Chinese (or Asian) second-generation advantage: social class heterogeneity in the co-ethnic community, intergenerational support in the immigrant family, and the belief in achievements as redemption for parental sacrifice. While pointing out the similarities and differences between Los Angeles and New York, it also suggests possible applications of these cultural mechanisms in explaining second-generation achievements.     

Explaining Asian American achievement

ABSTRACT

Jennifer Lee and Min Zhou’s The Asian American Achievement Paradox is a remarkable analysis of the educational upward mobility of Chinese and Vietnamese Americans in Los Angeles. It also provides important insights about the status of contemporary Asian Americans more generally. While critical of the ‘model minority’ thesis, the authors take seriously the role of culture in fostering educational attainment. However, their emphasis on immigrant selectivity and individual psychology may be misplaced when it comes to understanding the achievement of second-generation groups.     

Fixing the cultural fallacy

ABSTRACT

In this review essay, I place The Asian American Achievement Paradox, by Jennifer Lee and Min Zhou within a broad framework that reaches beyond immigration studies. I consider the book’s main contributions surrounding immigrant hyper-selectivity and stereotype promise in relation to class background, noting how the book makes an important contribution to our understanding of variations in educational achievement within and among ethno-racial groups. I note the relationship between stereotype promise and Robert K. Merton’s classic understanding of ‘self-fulfilling prophecy’. Finally, I draw attention to the way in which race and culture have been conflated thus creating new intellectual challenges for those interested in reaching greater levels of precision in analysis.     

Arginine-mediated dissociation of single cells and cell sheets from a polystyrene culture dish

ABSTRACT

Here, we report a novel non-enzymatic cell dissociation method, based on our finding that adherent cells dissociate rapidly from the polystyrene culture dish when incubated in an l- or d-arginine-containing solution. We also demonstrate the successful detachment of confluent NIH/3T3 cell monolayers from the culture dish as a cell sheet by the addition of an arginine solution.     

Extracellular phosphoprotein regulation is affected by culture system scale-down

BackgroundPhosphorylated proteins are known to be present in multiple body fluids in normal conditions, and abnormally accumulated under some pathological conditions. The biological significance of their role in the extracellular space has started being elucidated only recently, for example in bone mineralization, neural development, and coagulation. Here, we address some criticalities of conventional culture systems for the study of the extracellular regulation of phosphorylation.MethodsWe make use of microfluidics to scale-down the culture volume to a size comparable to the interstitial spaces occurring in vivo. The phosphoprotein content of conditioned media was analyzed by a colorimetric assay that detects global phosphorylation.ResultsWe found that miniaturization of the culture system increases phosphoprotein accumulation. Moreover, we demonstrated that in conventional culture systems dilution affects the extent of the phosphorylation reactions occurring within the extracellular space. On the other hand, in microfluidics the phosphorylation status was not affected by addition of adenosine triphosphate (ATP) and FAM20C Golgi Associated Secretory Pathway Kinase (FAM20C) ectokinase, as if their concentration was already not limiting for the phosphorylation reaction to occur.ConclusionsThe volume of the extracellular environment plays a role in the process of extracellular phosphorylation due to its effect on the concentration of substrates, enzymes and co-factors.General significanceThus, the biological role of extracellular phosphoregulation may be better appreciated within a microfluidic culture system.     

Rapid culture of human keratinocytes in an autologous,feeder-free system with a novel growth medium

Background aimsThe ability to culture human keratinocytes is beneficial in the treatment of skin injury and disease, as well as for testing chemicals in vitro as a substitute for animal testing.ResultsWe have identified a novel culture medium for the rapid growth of keratinocytes from human skin. “Kelch's medium” supports keratinocyte growth that is as rapid as in the classical Rheinwald and Green method, but without the need for cholera toxin or xenogeneic feeder cells. It enables keratinocytes to out-compete co-cultured autologous fibroblasts so that separation of the epidermis from the dermis is no longer required before keratinocyte culture. Enzymatic digests of whole human skin can therefore be used to generate parallel cultures of autologous keratinocytes, fibroblasts and melanocytes simply by using different cell culture media.ConclusionsThis new keratinocyte medium and the simplified manufacturing procedures it enables are likely to be beneficial in skin engineering, especially for clinical applications.     

‘No caps,no coconuts,no all-male groups’ … the regulation of Asians in London clubs

Abstract

Until now, British Asian popular music culture and leisure spaces have attracted little sociological investigation. This article redresses the lack of attention paid to this area by focusing on an ethnographic study of the ‘desi’ South Asian club scene in London. It explores the relationship between contemporary discourses of Asianness as they are constructed within an East London desi club space and made to matter through embodied social practices. Asian bodies are disciplined in the making of normative ethnic, gendered and sexual subjectivities, which demonstrates how discourses of difference create complex subjectivities and practices that theories of diaspora and cultural studies have not fully explored. It offers a rethinking of diasporic identities as lived and embodied experiences that are ambivalently constructed and performative projects, neither entirely resistant to white, dominant discourses nor wholly complicit with its existing norms.     

Transcultural Diabetes Care in The United States – A Position Statement by the American Association of Clinical Endocrinologists

The American Association of Clinical Endocrinologists (AACE) has created a transculturalized diabetes chronic disease care model that is adapted for patients across a spectrum of ethnicities and cultures. AACE has conducted several transcultural activities on global issues in clinical endocrinology and completed a 3-city series of conferences in December 2017 that focused on diabetes care for ethnic minorities in the U.S. Proceedings from the “Diabetes Care Across America” series of transcultural summits are presented here. Information from community leaders, practicing health care professionals, and other stakeholders in diabetes care is analyzed according to biological and environmental factors. Four specific U.S. ethnicities are detailed: African Americans, Latino/Hispanics, Asian Americans, and Native Americans. A core set of recommendations to culturally adapt diabetes care is presented that emphasizes culturally appropriate terminology, transculturalization of white papers, culturally adapting clinic infrastructure, flexible office hours, behavioral medicine—especially motivational interviewing and building trust—culturally competent nutritional messaging and health literacy, community partnerships for care delivery, technology innovation, clinical trial recruitment and retention of ethnic minorities, and more funding for scientific studies on epigenetic mechanisms of cultural impact on disease expression. It is hoped that through education, research, and clinical practice enhancements, diabetes care can be optimized in terms of precision and clinical outcomes for the individual and U.S. population as a whole.Lay AbstractThe American Association of Clinical Endocrinologists (AACE) has created a diabetes care model for patients of different backgrounds. AACE led meetings in New York, Houston, and Miami with health care professionals and community leaders to improve diabetes care. Information from these meetings looked at biological and environmental diabetes risks. Four American patient groups were studied: African Americans, Latinos, Asian Americans, and Native Americans. Diabetes care should use culturally appropriate language and search for better ways to apply science and clinic design. Talking to patients more clearly can improve their diabetes control. There are many other needed changes in the American health care system discussed in this paper. It is hoped that through better education, research, and practice, diabetes care can be improved for the entire U.S. population. This means that important differences among patients' ethnic and cultural backgrounds are addressed.Executive Summary

• Cultural adaptation of evidence-based recommendations is a necessary component of optimal diabetes care.
• Biological factors that contribute to the pathophysiology of diabetes vary according to race and ethnicity and can be affected by social determinants that vary with culture.
• The “Transcultural Diabetes Nutrition Algorithm” was developed in 2010 to optimize diabetes nutrition care globally and represents a validated methodology where evidence-based recommendations from a source culture can be adapted and implemented in a different culture using a toolkit.
• The 2015 AACE Pan-American Workshop examined diabetes care in 9 Latin American nations and concluded that there should only be one level of diabetes care for a population and that level should be “excellent;” also, that A1C measurements should be utilized and that more educational and nutritional options are needed to optimize diabetes care.
• The “Diabetes Care Across America – A Series of Transcultural Summits” was an AACE program conducted in 2017 in New York, Houston, and Miami to examine cultural factors that influence diabetes care domestically; the findings of this program are presented here.
• The African American, Hispanic/Latino, Asian American, and Native American populations are each comprised of different ancestries, anthropometrics/body compositions and physical appearances, and cultures and degrees of acculturation, with a significant evidence base that associates specific gene variants with specific phenotypic traits affecting diabetes care.
• For each ethno-cultural population, health messaging and diabetes care will need to consider issues of potential distrust of health care professionals, history of discrimination, religious practices, food preferences, attitudes toward physical activity, and despite the full range of socio-economics, the impact of poverty on engagement, self-monitoring, adherence with lifestyle and medical recommendations, and recruitment for clinical trials.
• Diabetes care should be as precise as possible, incorporating clinical trial evidence that best reflects the ethno-cultural attributes of a specific patient, with particular emphasis on cardiovascular disease risk mitigation, technology to assess the effects of eating patterns on glycemic status, adjusting traditional eating patterns to more healthy options that are still acceptable to the patient, flexibility in lifestyle and medication recommendations that take into account cultural factors, and the utilization of community-based resources to improve implementation.
• Pragmatic first steps to prepare a diabetes practice for an ethno-culturally diverse patient population include: learning more about biological-cultural interactions; gaining experience with lifestyle and behavioral medicine, especially motivational interviewing; creating a safe and immersive clinical environment; incorporating translation services, social prescribing, wearable technologies, web-based resources, and community engagement; and establishing referral networks with clinical trialists in diabetes research to improve recruitment of different populations.

ABSTRACTAbbreviations: A1C = hemoglobin A1c; AACE = American Association of Clinical Endocrinologists; ABCD = adiposity-based chronic disease; BMI = body mass index; CPA = clinical practice algorithm; CPG = clinical practice guideline; DBCD = dysglycemia-based chronic disease; DPP = Diabetes Prevention Program; GWAS = genome-wide association study; HCP = health care professional(s); IHS = Indian Health Service; LDL = low-density lipoprotein; MetS = metabolic syndrome; T2D = type 2 diabetes mellitus; tDNA = transcultural Diabetes Nutrition Algorithm; TG = triglyceride; WC = waist circumference     

Population dynamics of mesenchymal stromal cells during culture expansion

Background aimsMesenchymal stromal cells (MSC) are heterogeneous and only a subset possesses multipotent differentiation potential. It has been proven that long-term culture has functional implications for MSC. However, little is known how the composition of subpopulation changes during culture expansion.MethodsWe addressed the heterogeneity of MSC using limiting-dilution assays at subsequent passages. In addition, we used a cellular automaton model to simulate population dynamics under the assumption of mixed numbers of remaining cell divisions until replicative senescence. The composition of cells with adipogenic or osteogenic differentiation potential during expansion was also determined at subsequent passages.ResultsNot every cell was capable of colony formation upon passaging. Notably, the number of fibroblastoid colony-forming units (CFU-f) decreased continuously, with a rapid decay within early passages. Therefore the CFU-f frequency might be used as an indicator of the population doublings remaining before entering the senescent state. Predictions of the cellular automaton model suited the experimental data best if most cells were already close to their replicative limit by the time of culture initiation. Analysis of differentiated clones revealed that subsets with very high levels of adipogenic or osteogenic differentiation capacity were only observed at early passages.ConclusionsThese data support the notion of heterogeneity in MSC, and also with regard to replicative senescence. The composition of subpopulations changes during culture expansion and clonogenic subsets, especially those with the highest differentiation capacity, decrease already at early passages.     

Global human security in the post–COVID-19 era: The rising role of East Asia

Kenji Shibuya and coauthors discuss the potential contribution of East Asian countries to global health in the light of COVID-19.

Summary points

• East Asia, comprising the 10 ASEAN countries, China, Japan, and the countries of the Korean peninsula, has achieved comparatively good outcomes during the ongoing Coronavirus Disease 2019 (COVID-19) pandemic.
• This can be explained by sociological imprinting of and learning from past outbreaks, as well as competent governance.
• Concomitantly, East Asian nations have also been expanding capacity in global health development and diplomatic outreach, although there is as yet no coherent regional bloc vision, shared strategy, or a common set of operating principles, thus limiting synergistic impact.
• We believe that concrete next steps to bolster cooperation and extend influence could include the establishment of an East Asian Center for Disease Control, joint work in health and human security by the Asian Development Bank (ADB) and Asian Infrastructure and Investment Bank, and a region-wide research funding programme.
• Much, however, depends on evolving geopolitics writ large, notably the instability and reorientation of global alliances, which have the potential to adversely affect relations between neighbouring East Asian member states.
• Health diplomacy for global human security has the potential to become a stabilising influence and can be a topic around which all actors can more comfortably rally.

While the constituent countries of East Asia share common elements of history and culture, there is great diversity and rapid transition in social systems, economic development, demography, and epidemiological profiles (S1 Table). These factors fundamentally lead to the full range of major global health challenges, including those concerning epidemics and pandemics of novel and reemerging pathogens.Here, in the light of Coronavirus Disease 2019 (COVID-19), we discuss East Asia’s experience in this and past major outbreaks, its capacity and willingness to share best practice and support global health development, and the regional bloc’s potential in reshaping the global architecture for human security.Geographically and ethnoculturally, East Asia has conventionally referred to the region comprising China, Japan, Republic of Korea (South Korea), Democratic People’s Republic of Korea (North Korea), and Mongolia. More recently, the term has been broadened to encompass Southeast Asia (viz the 10 member states of ASEAN, the Association of South East Asian Nations), largely due to expanded regional economic cooperation and latterly for geopolitical reasons.     

Retrospective analysis of census data on general practitioners who qualified in South Asia: who will replace them as they retire?

ObjectivesTo determine the number and geographical distribution of general practitioners in the NHS who qualified medically in South Asia and to project their numbers as they retire.DesignRetrospective analysis of yearly data and projection of future trends.SettingEngland and Wales.SubjectsGeneral practitioners who qualified medically in the countries of Bangladesh, India, Pakistan, and Sri Lanka and who were practising in the NHS on 1 October 1992.Results4192 of 25 333 (16.5%) of all unrestricted general practitioners practising full time on 1 October 1992 qualified in South Asian medical schools. The proportion varied by health authority from 0.007% to 56.5%. Roughly two thirds who were practising in 1992 will have retired by 2007; in some health authorities this will represent a loss of one in four general practitioners. The practices that these doctors will leave seem to be in relatively deprived areas as measured by deprivation payments and a health authority measure of population need.ConclusionMany general practitioners who qualified in South Asian medical schools will retire within the next decade. The impact will vary greatly by health authority. Those health authorities with the greatest number of such doctors are in some of the most deprived areas in the United Kingdom and have experienced the most difficulty in filling vacancies. Various responses will be required by workforce planners to mitigate the impact of these retirements.

Key messages

• Currently, one in six general practitioners practising full time in the NHS qualified medically in a South Asian medical school; two thirds are likely to retire by 2007
• It is unlikely that doctors who qualify in South Asia will be a source of general practice recruitment in the future
• The posts from which South Asian qualifiers are retiring may be more difficult to fill because they are often in practices in areas of higher need
• There is extreme variation in the proportion of total general practitioners who are South Asian qualifiers; flexibility for policy responses should be maintained

     

Artefacts with ascorbate and other redox-active compounds in cell culture: epigenetic modifications,and cell killing due to hydrogen peroxide generation in cell culture media

Abstract

This letter discusses the various artefacts that can arise when ascorbate or other redox-active compounds are added to cell culture media.     

Ecological analysis of ethnic differences in relation between tuberculosis and poverty

ObjectiveTo examine the effect of ethnicity on the relation between tuberculosis and deprivation.DesignRetrospective ecological study comparing incidence of tuberculosis in white and south Asian residents of the 39 electoral wards in Birmingham with ethnic specific indices of deprivation.SettingBirmingham, 1989-93.Subjects1516 notified cases of tuberculosis.ResultsUnivariate analysis showed significant associations of tuberculosis rates for the whole population with several indices of deprivation (P<0.01) and with the proportion of the population of south Asian origin (P<0.01). All deprivation covariates were positively associated with each other but on multiple regression, higher level of overcrowding was independently associated with tuberculosis rates. For the white population, overcrowding was associated with tuberculosis rates independently of other variables (P=0.0036). No relation with deprivation was found for the south Asian population in either single or multivariable analyses.ConclusionsPoverty is significantly associated with tuberculosis in the white population, but no such relation exists for those of Asian ethnicity. These findings suggest that causal factors, and therefore potential interventions, will also differ by ethnic group.

Key messages

• Previous studies in the United Kingdom have been unable to disentangle the effects of poverty and ethnicity on the incidence of tuberculosis
• A strong relation was found between measures of poverty and tuberculosis in the white population
• No relation between measures of poverty and tuberculosis was found in the Asian population
• The only measure of poverty independently associated with tuberculosis in the white population is overcrowding
• An increasing proportion of tuberculosis is occurring in Asian people and causal factors in this group are likely to be different from those in the white population

     

基于响应面分析的高抗原活性猪水肿病大肠杆菌疫苗培养基的研制及效果评价

【背景】猪水肿病大肠杆菌引发的疾病造成了很大的危害,但现有培养基存在培养密度低的问题。【目的】研制出高抗原活性猪水肿病大肠杆菌疫苗培养基。【方法】以常用的市售猪水肿培养基为对照,通过单因素试验、爬坡试验(Plackett-Burman, PB)、响应面(Box-Behnken, BB)试验对猪水肿培养基进行响应面优化,得到猪水肿培养基最优配方。以响应面试验得到的培养基培养猪水肿病大肠杆菌,评价不同培养时间点菌株的抗原活性,制作灭活疫苗,进行动物免疫保护试验。【结果】对研制的培养基进行扩大培养验证,发现扩大培养得到的菌株活菌数可达5×10⁹ CFU/mL以上,约为对照组的2倍。制备的灭活疫苗效价可达1:140 000,并在9 h时抗原蛋白效价达到最高。【结论】本研究研制出的疫苗培养基显著提高了猪大肠杆菌菌体密度,并可提高菌体抗原活性,为猪水肿病灭活疫苗的制备提供了技术指引。     

Suspension culture on microcarriers and as aggregates enables expansion and differentiation of pluripotent stem cells (PSCs)

Background aimsHuman pluripotent stem cells (PSCs) hold a great promise for promoting regenerative medical therapies due to their ability to generate multiple mature cell types and for their high expansion potential. However, cell therapies require large numbers of cells to achieve desired therapeutic effects, and traditional two-dimensional static culture methods cannot meet the required production demand for cellular therapies. One solution to this problem is scaling up expansion of PSCs in bioreactors using culture strategies such as growing cells on microcarriers or as aggregates in suspension culture.MethodsIn this study, we directly compared PSC expansion and quality parameters in microcarrier- and aggregate-cultures grown in single-use vertical-wheel bioreactors.ResultsWe showed comparable expansion of cells on microcarriers and as aggregates by day 6 with a cell density reaching 2.2 × 10⁶ cells/mL and 1.8 × 10⁶ cells/mL and a fold-expansion of 22- and 18-fold, respectively. PSCs cultured on microcarriers and as aggregates were comparable with parallel two-dimensional cultures and with each other in terms of pluripotency marker expression and retention of other pluripotency characteristics as well as differentiation potential into three germ layers, neural precursor cells and cardiomyocytes.ConclusionsOur study did not demonstrate a clear advantage between the two three-dimensional methods for the quality parameters assessed. This analysis adds support to the use of bioreactor systems for large scale expansion of PSCs, demonstrating that the cells retain key characteristics of PSCs and differentiation potential in suspension culture.     

What is culture? Systems of people,places, and practices

Abstract

Culture is a fuzzy concept without fixed boundaries, meaning different things according to situations. To address this issue, I introduce a p-model to understand culture as a system of people, places, and practices, for a purpose such as enacting, justifying, or resisting power. People refers to population dynamics, social relations, and culture in groups. Places refers to ecological dynamics, institutional influences, and culture in contexts. Practices refers to participatory dynamics, community engagement, and culture in action. Power refers to forcing others into compliance (power-over people), controlling access to spaces (power in places), and behaving as desired (power-to practice). I use racism to illustrate the p-model and suggest applications in theory, research, and practice in developmental sciences.