Phosphorus (P) is an essential nutrient element for the growth of phytoplankton. How P deficiency affects population growth and the cell division cycle in dinoflagellates has only been studied in some species, and how it affects photosynthesis and cell growth remains poorly understood. In the present study, we investigated the impact of P deficiency on the cell division cycle, the abundance of ...

The photosynthetic responses of four alfalfa (Medicago sativa L.) cultivars to 10 and 22 C air temperatures were examined and the relationship between the photosynthetic response at 10 C and the fatty acid composition of the chloroplast membranes was determined. Chilling-resistant cultivars exhibited moderate reductions in photosynthesis at 10 C, compared to 22 C, and contained a significantly ...

OBJECTIVES After the release of the results of the Women's Health Initiative, an emerging consensus suggests that continuous-combined hormone therapy (CCHT) should be limited to short-term management of moderate-to-severe vasomotor symptoms. This, in turn, raises the important question of the economic value, if any, of short-term CCHT for this indication. We conducted a cost-effectiveness analy...

An experimental study was carried out to investigate the effects of inlet pressure, sample thickness, initial sample temperature, and temperature sensor location on the surface heat flux, surface temperature, and surface ultrafast cooling rate using stainless steel samples of diameter 27 mm and thickness (mm) 8.5, 13, 17.5, and 22, respectively. Inlet pressure was varied from 0.2 MPa to 1.8 MPa...

OBJECTIVE The purpose of the present study was to use a meta-analytic approach to examine the convergent validity of the international physical activity questionnaire (IPAQ). DESIGN Systematic review by meta-analysis. SETTING The relevant studies were surveyed from five electronic databases. Primary outcomes of interest were the product-moment correlation coefficients between IPAQ and other...

Diabetes mellitus is frequent in kidney transplant recipients and is commonly associated with gastrointestinal (GI) complications. Delayed gastric emptying affects 30% to 50% of patients with type 1 or 2 diabetes and can influence oral drug absorption. Time-to-peak concentration of mycophenolic acid (MPA) from mycophenolate mofetil (MMF) is longer in diabetic kidney transplant patients than pat...

BACKGROUND Progestins as respiratory stimulants in chronic obstructive pulmonary disease (COPD) have been investigated in males and during wakefulness. However, sleep and gender may influence therapeutic responses. We investigated the effects of a 2-week medroxyprogesterone acetate (MPA) therapy on sleep and nocturnal breathing in postmenopausal women. METHODS A single-blind placebo-controlle...