In order to access remote reserve areas, some U.S. coal mines have to maintain aged underground entries for a great distance.
Additionally, an important concern is the failure of patient-specific donor cells to maintain age-associated markers in late-onset human iPSC-based disease models.
Our recent study [ 5] demonstrates the failure of patient-specific donor cells to maintain age-associated markers during iPSC reprogramming and subsequent differentiation.
Given aforementioned sex-related differences in SWA in MDD [ 29, 30], as well as reported differences in SWA between healthy men and women that vary by age [ 42- 44], additional analyses between MDD and controls stratified by sex were performed to maintain age-matching of subjects.
Homogeneity of the participants in terms of following characteristics was maintained: age, number of pregnancies, number of children, education, religion, ethnicity, local organization membership, and socioeconomic status.
The government demanded that safety standards be upgraded in thousands of poorly maintained, aging schools.
Most of that money will go toward maintaining aging equipment, buying weapons, expanding weapons research and improving health care benefits for retirees, Pentagon officials say.
He insists Poland can achieve western-level economic development while maintaining age-old traditional Polish values and remaining a homogenous white Catholic country.
Britain's offshore fields have gushed for longer than pioneers expected; as a result, much time and cash must be spent maintaining ageing kit.
De Boer said that arguments that renewables are expensive and fossil fuels are cheap are false because they fail to take into account the health costs of burning fossil fuels, and the cost of maintaining ageing infrastructure.
