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Seasonal variability of particulate organic radiocarbon in the northeast Pacific ocean
We present Delta(14)C measurements of particulate organic carbon (POC) collected on four cruises at our time series site (station M) in the northeast Pacific Ocean. We observe a large gradient with depth in the suspended POC Delta(14)C values (124-160 parts per thousand). These profiles display lower Delta(14)C values (by 20-30 parts per thousand) in samples between 2500 m and the bottom during June 1992 and July 1993 than those during February and October 1992. Values of Delta(14)C in sinking POC from deep-moored sediment trap collections suggest a semiannual trend that displays lower overall Delta(14)C in material collected during periods of high flux. A limited number of Delta(14)C measurements of small swimmers picked from the trap 650 m above bottom are similar to surface Delta(14)C measurements of dissolved inorganic carbon (DIG) and suspended POC, indicating a surface carbon source. Overall, we postulate that the major process causing lower Delta(14)C values of deep suspended and sinking POC is sorption (or biological incorporation) of \u27\u27old\u27\u27 DOC onto particulate matter. There appears to be a higher ratio of DOC sorbed to sinking particulate matter at times of high flux (late spring and early fall) that can be thought of as a \u27\u27stripping out\u27\u27 of DOC from the water column. The DIC Delta(14)C display a small seasonal variation in the surface waters and is not the sole source of the observed seasonality in the POC Delta(14)C signals
Examining the Treatment of Preeclampsia Among Women Receiving Care in a Rural Clinic Using the American College of Obstericians and Gynecologists' Guidelines
The United States (US) has the highest maternal and infant mortality rates among developed countries. Yearly, 50,000 women experience life-threatening pregnancy-related complications including preeclampsia. Preeclampsia is a major contributor to maternal morbidity with an incidence of 69.8 per 1,000 deliveries among African American women compared with 43.3 per 1,000 in white women. African American women are dying from childbirth complications more than any other racial group, Purpose: The purpose of this DNP project was to examine the maternal care of women diagnosed with preeclampsia using the American College of Obstetricians and Gynecologists (ACOG) Guidelines. Methods: A retrospective descriptive design was used to examine electronic medical records of women with a diagnosis of preeclampsia (gestational-induced hypertension [GIH])) using an assessment tool created by the PI. ACOG guidelines were used to examine the preeclampsia treatment plan. Results: Sixteen electronic medical records (EMR) of women were examined that included, including 7 African American, 3 Hispanics, and 6 Whites, 16-40 years old. Seventy-one percent of African American women (n=5) were diagnosed with GIH, chronic hypertension, or elevated blood pressure; one-hundred percent of the Hispanic women (n=3) were diagnosed with GIH; 50% of white women (n= 3) had a diagnosis of GIH. Fifty-six percent of the women (n= 9) were prescribed low-dose aspirin & antihypertensive therapy. Conclusion: This project indicates that preeclampsia may occur in various groups. Treatment for preeclampsia based on the ACOG guidelines may not be followed for all patients with preeclampsia. More work is needed to ensure that evidence-based practice guidelines are used for patients with a diagnosis of preeclampsia