On the existence and uniqueness of the NPMLE in biased sampling models

Identifiability, existence and uniqueness of the non-parametric maximum likelihood estimator (NPMLE) in biased sampling models are thoroughly investigated. The conditions for existence and uniqueness are considered from a different perspective and proofs are simplified. An extension to semi-parametric models is provided.     

A Clearer Picture of Multiracial Substance Use: Rates and Correlates of Alcohol and Tobacco Use in Multiracial Adolescents and Adults

Existing studies indicate that multiracial adolescents face greater substance use rates than monoracial adolescents. However, it is unclear whether the risk identified in adolescence persists into adulthood. The current study uses data from the 2001 California Health Interview Survey to analyze the alcohol and tobacco use of multiracial adolescents and adults compared to European American, African American, Native American, Asian/Pacific Islander American, and Latino American individuals. Results generally support the hypothesis that multiracial adolescents and adults face higher rates of substance use than African American and Asian/Pacific Islander American individuals, though this pattern of results was reversed in comparison with Native Americans and European Americans, and less consistent compared to Latino Americans. We further establish and discuss the correlates of drinking and smoking behavior for mixed-race individuals—comparing them to other racial groups. We review the limitations of our design and the implications for future research on multiracial substance use.     

Association of general and abdominal obesity with age,endocrine and metabolic factors in Asian men

Objective: This study made use of the percent abdominal fat to define abdominal obesity (AbO) and examined the differential associations of general obesity (GOb) and AbO with age, metabolic and endocrine factors.

Methods: Metabolic, endocrine and anthropometric factors and body composition were measured in 481 Asian men.

Results: A DEXA-derived ≥25% abdominal fat (PAbdF) was used to define men with AbO. Age was directly associated with PAbdF and percent total body fat (PBF). Exercise intensity was negatively associated with PBF. Both PBF and PAbdF were associated with HDL and LDL, but have opposite correlation with triglyceride. Furthermore, both PBF and PAbdF were associated with the number of metabolic syndrome (MetS) risk factors. Men with GOb had lower levels of percent lean mass (PLM), testosterone and bioavailable testosterone, and higher insulin and glucose levels. Men with AbO had lower arm and leg fat, higher insulin levels and triglycerides.

Conclusions: Men with GOb and AbO had different pattern of body composition. Age may be a contributory factor in AbO and a sedentary lifestyle may contribute to GOb. Both GOb and AbO are associated with an increased risk of MetS, with GOb more predispose to risk of diabetes, while AbO more at risk for cardiovascular diseases.     

Neighborhood Qualification of the Association Between Parenting and Problem Behavior Trajectories Among Mexican‐Origin Father–Adolescent Dyads

To address the combined importance of fathers and neighborhoods for adolescent adjustment, we examined whether associations between fathers' parenting and adolescents' problem behaviors were qualified by neighborhood adversity. We captured both mainstream (e.g., authoritative) and alternative (e.g., no‐nonsense, reduced involvement) parenting styles and examined parenting and neighborhood effects on changes over time in problem behaviors among a sample of Mexican‐origin father–adolescent dyads (N = 462). Compared to their counterparts in low‐adversity neighborhoods, adolescents in high‐adversity neighborhoods experienced greater initial benefits from authoritative fathering, greater long‐term benefits from no‐nonsense fathering, and fewer costs associated with reduced involvement fathering. The combined influences of alternative paternal parenting styles and neighborhood adversity may set ethnic and racial minority adolescents on different developmental pathways to competence.     

Variations in carbon dioxide fluxes within a city landscape: Identifying a vehicular influence

To date, studies examining carbon dioxide (CO₂) fluxes in urban areas have been limited compared to those in rural environments. The objectives of our study were to examine the relationship between traffic volume and CO₂ fluxes. We demonstrated that CO₂ fluxes were strongly linked with surrounding land use, specifically impervious surfaces and traffic volume. A site near downtown Syracuse in New York State (USA) had relatively constant positive fluxes (source: +39 μmol CO₂ m^?2 s^?1) throughout the year as a result of strong vehicular traffic influence from two nearby interstate highways. There was a strong positive relationship between traffic and CO₂ fluxes (r²?=?0.93, p?<?0.0001) with marked differences between the weekend days versus the workweek days. In contrast, a residential site in Syracuse was dominated by vegetative influences during the leaf-on period due to CO₂ uptake by photosynthesis, reaching a maximum negative mean diurnal flux of ?11 μmol CO₂ m^?2 s^?1 around midday (sink). The spatial variations of CO₂ fluxes identify the critical role played by local traffic volumes in affecting the CO₂ dynamics of urban environments. Understanding the dynamic fluxes of CO₂ in urban environments has important implications for local, regional and global evaluations of CO₂ budgets and inventories, and carbon cycle and climate modeling.     

Strategic Responses to Resource Dependence Among Transnational NGOs Registered in the United States

Many of the world’s largest and most impactful transnational NGOs are registered in the United States where they engage in significant fundraising activities to support their global operations. Their reliance on the external environment for financial support exposes them to resource dependence and the possibility of external control. However, as civil society organizations organized as firms, transnational NGOs attempt to maintain operational independence from the donors upon which they rely for funding. This article contributes to resource dependence theory by identifying the strategies that transnational NGOs employ in response to resource dependence, explaining the emergence of strategic response, and exploring the conditions under which NGOs are capacitated to preserve organizational autonomy. The responses transnational NGOs employ include alignment, subcontracting, perseverance, diversification, commercialization, funding liberation, geostrategic arbitrage, specialization, selectivity, donor education, and compromise. Elements of this strategic repertoire empower NGOs to resist external control, even circumventing and influencing donor preferences. Findings are based on in-depth, face-to-face interviews with top organizational leaders from a diverse sample of transnational NGOs registered in the United States.     

‘Behemoth Pulls the Peasant’s Plough’: Convergence and Resistance to Business Civilization in China

Abstract

It has been widely held that China’s development was forged from a unique pathway to that of Western countries. As a result, it has been assumed that China’s historical experience of modernization contains important lessons for other developing states. However, as we show, modernization in China can be seen as sharing many of the same assumptions of development as the West. Using insights from Cox’s work on civilizations—particularly the notion of ‘Business Civilization’ (adapted from Susan Strange)—our paper examines how modernization theoretic assumptions underpin both Chinese and World Bank perspectives on agricultural development not only within China but also across their engagements, policies, and practices of development throughout Africa. We argue that development constitutes a political project historically inseparable from La mission civilisatrice of Business Civilization, extending a form of intersubjectivity and materiality, power and rationality, based on a specific civilizational worldview. This process retains a number of contradictions and points of conflict and we focus on the resistances of traditional forms of civilization in contestations around the imposition of commercialized agriculture.     

Asymmetric Information under the Kafala Sponsorship System: Impacts on Foreign Domestic Workers’ Income and Employment Status in the GCC Countries

This article examines the legal and policy implications of information asymmetry for foreign domestic workers employed under the Kafala sponsorship system in the Gulf Cooperation Council (GCC) countries. Drawing from ethnographic and field‐based observations in large GCC migrant destinations – including Kuwait, Qatar, and the United Arab Emirates (UAE) – we investigate the information flows and market uncertainties between five key stakeholders: labour‐receiving governments, labour‐sending governments, recruitment agencies (subagents), sponsors (employers), and social networks. Several factors contribute to asymmetric information: the lack of bilateral labour agreements and government policy coordination, programs between and among government entities, the absence of labour law for domestic workers, and the laissez faire approach of the labour‐receiving government. These sources of asymmetric information create serious market vulnerabilities for the domestic worker population, often resulting in loss of employment and early deportation. The concluding section further outlines policy implications and areas of methodological research on GCC migration.