Hagenlott6138

Trehalose could protect the typical food microorganism Saccharomyces cerevisiae cell against environmental stresses; however, the other regulation effects of trehalose on yeast cells during the fermentation are still poorly understood. In this manuscript, different concentrations (i.e., 0, 2 and 5% g/v) of trehalose were respectively added into the medium to evaluate the effect of trehalose on growth, central metabolisms and division of S. cerevisiae CEN.PK113-7D strain that could uptake exogenous trehalose. Results indicated that addition of trehalose could inhibit yeast cell growth in the presence or absence of 8% v/v ethanol stress. Exogenous trehalose inhibited the glucose transporting efficiency and reduced intracellular glucose content. Simultaneously, increased intracellular trehalose content destroyed the steady state of trehalose cycle and caused the imbalance between the upper glycolysis part and the lower part, thereby leading to the dysfunction of glycolysis and further inhibiting the normal yeast cell growth. Moreover, energy metabolisms were impaired and the ATP production was reduced by addition of trehalose. Finally, exogenous trehalose-associated inhibition on yeast cell growth and metabolisms delayed cell cycle. These results also highlighted our knowledge about relationship between trehalose and growth, metabolisms and division of S. cerevisiae cells during fermentation. Cooked rice with pork floss (CRPF) wrapped in dried seaweed is one of the most popular ready-to-eat (RTE) foods in many Asian countries, particularly in Taiwan. The products are susceptible to Staphylococcus aureus contamination and temperature abuse during manufacturing, distribution, and storage. The objective of this study was to examine the effect of temperature on its growth in RTE CRPF for use in risk assessment and prevention of staphylococcal food poisoning (SFP). Inoculated CRPF samples were stored at 4, 12, 18, 25, and 35°C, and the change in the populations of S. aureus during storage were analyzed using three primary models to determine specific growth rate (μmax), lag-phase duration (λ), and maximum population density (ymax). The Ratkowsky square-root and Huang square-root (HSR) models were used as the secondary models to describe the effect of temperature on μmax, and a linear and an exponential regression models were used to describe the effect of temperature on λ and ymax, respectively. The model performance was evaluated by the root mean square error (RMSE), bias factor (Bf), and accuracy factor (Af) when appropriate. Results showed that three primary models were suitable for describing the growth curves, with RMSE ≤ 0.3 (log MPN/g). Using μmax obtained from the Huang model, the minimum growth temperature (Tmin) estimated by the HSR model was 7.0°C, well in agreement with the reported Tmin. The combination of primary and secondary models for predicting S. aureus growth was validated by additional growth curves at 30°C, which showed that the RMSE was 0.6 (log MPN/g). Therefore, the developed models were acceptable for predicting the growth of S. aureus in CRPF under likely temperature abuse conditions and can be applied to assess the risk of S. aureus in CRPF and design temperature controls to reduce the risk of SFP. In this essay, I propose there are enduring ideas in the works of nurse theorists from the 1960s and 1970s that were valuable not only in the past, but in nursing today as well as in possibly shaping the future of nursing knowledge development. I identify these as gift ideas and draw on the work of Wiedenbach for the gift of dignity in nursing philosophy, and the gifts of dialogue from Orlando, behavioral systems from Johnson, context from Roy, self-care from Orem, and finally the gift of nursing science as emergent in understanding life processes from Rogers. Although the core of nursing knowledge may be elusive, the gift ideas mentioned in this essay provide some guideposts in articulating and developing that core in the present as well as in the future. BACKGROUND Despite multiple federal initiatives and calls to action, nursing literature on the health of sexual and gender minority (SGM) populations remains sparse. Low levels of funding for SGM-focused research may be a factor. PURPOSE To examine the proportion and focus of National Institute of Nursing Research (NINR)-funded projects that address SGM health, the number and type of publications arising from that funding, and the reach of those publications over time. METHODS NINR-funded grants focused on SGM research and bibliometrics of resultant publications were identified using multiple search strategies in NIH RePORTER and PubMed and Scopus, respectively. FINDINGS Since 1987, NINR has funded 25 projects addressing the health of SGM populations. Pre-doctoral fellowship funding resulted in more publications in nursing journals than research grant funding. DISCUSSION There are clear differences in patterns of funding for fellowships and research grants with corresponding differences in publications and impact on the nursing literature. Nursing research involves much planning and attention to details, yet novice and seasoned nurse researchers often overlook the day-to-day operations required to conduct research studies. Project management is a set of iterative steps that can facilitate the process of conducting nursing research. In this paper we aim to provide an overview of project management and identify ways in which its specific principles and strategies may be applied to facilitate nursing research. Here we give an overview of our current longitudinal study using a Solomon four-group design and illustrate how we applied strategies and tools from the project management literature. In addition, we offer descriptions and illustrations of several other project management tools that could have been used in specific phases of this research project. We encourage nurse educators and researchers to familiarize themselves with the principles of project management and consider using them in future studies. BACKGROUND The cardiovascular system exhibits strong circadian rhythms to maintain normal functioning. Irregular sleep schedules, characterized by high day-to-day variability in sleep duration or timing, represent possibly milder but much more common and chronic disruption of circadian rhythms in the general population than shift work. https://www.selleckchem.com/products/valaciclovir-hcl.html OBJECTIVES This study aimed to prospectively examine the association between sleep regularity and risk of cardiovascular disease (CVD). METHODS In MESA (Multi-Ethnic Study of Atherosclerosis), 1,992 participants free of CVD completed 7-day wrist actigraphy for sleep assessment from 2010 to 2013 and were prospectively followed through 2016. The study assessed sleep regularity using the SD of actigraphy-measured sleep duration and sleep-onset timing across 7 days. Incident CVD included nonfatal and fatal cardiovascular events. A Cox proportional hazards model was used to estimate hazard ratios (HRs) for incident CVD according to SD of sleep duration and timing, adjusted for traditional CVD risk factors (including CVD biomarkers) and other sleep-related factors (including average sleep duration).