The 2018 Revision of the ISBER Best Practices: Summary of Changes and the Editorial Team's Development Process.

An increased need for specimens of reliable and consistent quality for research purposes requires the development of standardized policies and practices for the collection, handling, storage, retrieval, and distribution of specimens and specimen-related data. Providers of specimen resources should strive to incorporate new technologies and state-of-the-science approaches and thus ensure the availability of fit-for-purpose research specimens. Strategies to achieve quality outcomes and performance improvements often include adherence to established standards and implementation of best practices.

Sons who care: examining the experience and meaning of filial caregiving for married and never-married sons.

In filial caregiving, women typically provide more care than men. The numerical predominance of female caregivers has been explained such that diversity among male caregivers has been overlooked. That is, "internalist" explanations, which emphasize the differing socialization experience of females and males, tend to homogenize each gender's caregiving experience.

The gendered nature of men's filial care.

Objectives: This paper investigates sociodemographic and family structure factors that predict men's involvement (n = 773) in different gendered dimensions of filial caregiving: traditionally male, gender neutral, and traditionally female care.

Methods: The concepts that guide this research relate to family obligations or motivations to provide care, specifically, commitment to care, legitimate excuses, and caring by default. Data for this research come from the Work and Family Survey (1991-1993) conducted by the Work and Eldercare Research Group of CARNET: The Canadian Aging Research Network.

Susceptibility to Cryptosporidium parvum infections in cytokine- and chemokine-receptor knockout mice.

To determine the role of cytokines and a chemokine receptor in the susceptibility to, and outcome of, infection, 4 different knockout mice (IL-4, IL-10, IL-12, and CCR5) were infected with Cryptosporidium parvum and monitored for infection intensity by collection of fecal pellets from individual mice. Because adult immunocompetent mice are refractory to infection, wild-type mice on the same background as the knockout mice (C57BL/6) were used as a negative control. No infection was detected over a 4-wk time period in IL-4, IL-10, and CCR5 knockout mice inoculated with 106 oocysts.