Optimal orthogonal block designs for four-mixture components in two blocks based on F-squares for Becker's models and K-model

Orthogonal block designs in mixture experiments have been extensively studied by various authors. Aggarwal et al. [M.L. Aggarwal, P. Singh, V. Sarin, and B. Husain, Mixture designs in orthogonal blocks using F-squares, METRON – Int. J. Statist. LXVII(2) (2009), pp. 105–128] considered the case of components assuming the same volume fractions and obtained mixture designs in orthogonal blocks using F-squares. In this paper, we have used the class of designs presented by Aggarwal et al. and have obtained D-, A- and E-optimal orthogonal block designs for four components in two blocks for Becker's mixture models and K-model, respectively. Orthogonality conditions for the considered models are also given.     

Inflation uncertainty and economic growth: evidence from the LAD ARCH model

In this paper, we combined the panel data and least absolute deviation autoregressive conditional heteroscedastic (ARCH) (L ₁-ARCH) model to infer on the relationship between inflation uncertainty and economic growth in five emerging market economies. Two interesting findings emerged from the analysis; first, we confirmed that the inflation uncertainty has a significant and negative effect on economic growth. Second, inflation is also an important variable and it is detrimental to economic prospects in the fast-growing Association of Southeast Asian Nations (ASEAN) economies. All in all, the empirical findings suggest that greater stability in the economy may be desirable in order to stimulate economic growth in the region.     

Evaluation of the relationship between microalbuminuria and 25-(OH) vitamin D levels in patients with type 2 diabetes mellitus

Background: 25-(OH) vitamin D (VD) deficiency has been described as potential risk factor for the development of diabetes in many epidemiological studies. 25-(OH) VD deficiency and insulin resistance associated with this deficiency are common findings in patients with type 2 diabetes mellitus. The objective of this study is to evaluate the relationship between 25-(OH) VD levels and microalbuminuria.

Methods: The patients with type 2 diabetes mellitus aged between 40 and 65 years, who were admitted to the diabetes outpatient clinics of our hospital, were evaluated in two different groups. The first group consisted of 119 patients with insufficient 25-(OH) VD levels (10–30?ng/mL) and the second group consisted of 121 patients with 25-(OH) VD deficiency (≤10?ng/mL). The relationship between 25-(OH) VD levels and the level of microalbuminuria was evaluated in the two groups.

Results: The mean 25-(OH) VD level was 11.5?ng/mL and the mean HbA1c level was 9.1%. When the patient groups were evaluated according to 25-(OH) VD levels, HbA1c values were significantly higher in patients with a 25-(OH) VD level of 10?ng/mL or lower (p?=?.039). 25-(OH) VD levels were not significantly different between patients with different stages of renal failure (p?=?.119), whereas the level of microalbuminuria was significantly different (p?=?.030).

Conclusions: This study found that the level of microalbuminuria was significantly higher in patients with 25-(OH) vitamin D deficiency compared to patients with 25-(OH) VD insufficiency.     

Multilevel Risk and Protective Factors for Intimate Partner Violence Among African,Asian, and Latina Immigrant and Refugee Women: Perceptions of Effective Safety Planning Interventions

Immigrant and refugee women are at high risk for intimate partner violence (IPV) and intimate partner homicide (IPH). Given the growing number of immigrants and refugees in the US and the concerns about IPV and IPH among immigrant and refugee groups, this paper aims to identify survivors and practitioners’ perceptions of (a) common and culturally specific risk and protective factors for IPV and IPH for immigrant and refugee women and (b) areas of safety planning interventions for survivors who are at risk for severe or lethal violence by an intimate partner. Qualitative data for this multi-site study were collected from women and practitioners residing in seven geographically diverse US locations. Eighty-three in-depth interviews were conducted with adult immigrant and refugee survivors of IPV, who identified as Asian (n?=?30), Latina (n?=?30), and African (n?=?23). Additionally, nine focus groups and five key informant interviews were conducted with practitioners (n?=?62) who serve immigrant and refugee survivors of IPV. Results revealed multilevel risk and protective factors for IPV/IPH found at the societal level (e.g., patriarchal cultural norms), relationship level (e.g., partner abusive behaviors), and individual level (e.g., acculturation in the US). These findings can inform the development of culturally responsive risk assessment and safety planning interventions across legal, social service, and healthcare settings.     

Does employee welfare affect corporate debt maturity?

This study examines the effect of employee well-being on the corporate debt maturity structure of U.S. firms. It hypothesizes that a firm's degree of commitment to employee welfare affects its debt maturity structure. Using a sample of 19,347 firm-year observations over the period 1991–2014, we find evidence that firms with higher employee welfare scores prefer long-term debt over short-term debt. This relationship is more pronounced for firms operating in human-capital-intensive industries and firms with lower labor union-membership rate. Our findings are robust to endogeneity concerns and insensitive to the use of alternative regression methods, variable measurements, and sample compositions. This paper provides novel evidence on the role of employment policies and practices in explaining variations in debt maturity.     

EMDR with First-Generation College Students At-Risk of Facing a Forced Marriage

Clinical Social Work Journal - In forced marriage cases, individuals and couples are coerced by emotional and physical violence into marriage and risk ostracization from their community. Often...