The Associated Risk Factors That Lead To The Onset Of Sarcoidosis In Black American Women

Sarcoidosis is a disease characterized as noncaseation granulomas. Granulomas are clusters of cells that form a discrete nodule. This research was important because Black American women develop saroidosis at a higher rate than any other race. The purpose of this phenomenological qualitative study was to examine the impact of sarcoidosis in the lives of Black American women diagnosed with the disease and to consider how occupational experiences may have contributed to participants\u27 development of sarcoidosis. Research states that domestic work such as cleaning, when performed on a daily basis or as an occupation, can contribute to adverse health effects. The framework of this study utilized the transtheoretical model of behavior change while the overall research questions centered on the effects of sarcoidosis on the quality of life of Black American women. This qualitative research included interviews with thirteen Black American women diagnosed and living with sarcoidosis at various stages. Data were collected using the software tool HyperRESEARCH. Both purposive sampling and snowball sampling technique was used for this research. Data were gathered using a general profile of the lived experiences of women with sarcoidosis. The findings revealed that the common lived experience that has potentially put Black American women at risk for developing sarcoidosis is bleach. My recommendations for further research would be to expand the locations of participants to across the United States. The implications for positive social change may result from broader knowledge of the disease through education, even for those who are not at risk for developing it. Chronic sarcoidosis can be fatal if untreated

Coronal Heating as Determined by the Solar Flare Frequency Distribution Obtained by Aggregating Case Studies

Flare frequency distributions represent a key approach to addressing one of the largest problems in solar and stellar physics: determining the mechanism that counter-intuitively heats coronae to temperatures that are orders of magnitude hotter than the corresponding photospheres. It is widely accepted that the magnetic field is responsible for the heating, but there are two competing mechanisms that could explain it: nanoflares or Alfv\'en waves. To date, neither can be directly observed. Nanoflares are, by definition, extremely small, but their aggregate energy release could represent a substantial heating mechanism, presuming they are sufficiently abundant. One way to test this presumption is via the flare frequency distribution, which describes how often flares of various energies occur. If the slope of the power law fitting the flare frequency distribution is above a critical threshold, $\alpha=2$ as established in prior literature, then there should be a sufficient abundance of nanoflares to explain coronal heating. We performed $>$600 case studies of solar flares, made possible by an unprecedented number of data analysts via three semesters of an undergraduate physics laboratory course. This allowed us to include two crucial, but nontrivial, analysis methods: pre-flare baseline subtraction and computation of the flare energy, which requires determining flare start and stop times. We aggregated the results of these analyses into a statistical study to determine that $\alpha = 1.63 \pm 0.03$. This is below the critical threshold, suggesting that Alfv\'en waves are an important driver of coronal heating.Comment: 1,002 authors, 14 pages, 4 figures, 3 tables, published by The Astrophysical Journal on 2023-05-09, volume 948, page 7