Developing generalized parameters for post-fire erosion risk assessment using the revised Morgan-Morgan-Finney model: A test for north-central Portuguese pine stands

Objectives: MTHFR polymorphism testing has been used by clinicians for thrombophilia risk assessment. We questioned the utility of such testing.Methods: 1,141 patients age 18 and above had MTHFR testing for both C677T and A1298C polymorphisms, 2006 through 2012. Available plasma homocysteine levels were obtained and ICD-9 billing codes were grouped to identify venous or arterial clots in these patients.Results: 901 women and 240 men were tested; median age in women was 33 years (range 18-86); median age in men was 47 years (range 18-83). County of residence mapping confirmed that this MTHFR tested population was from north-central Appalachia. Only 144 (13%) of the 1,141 patients had no polymorphism at either the C677T or the A1298C locus; only 4 patients (0.4%) had 3 or more polymorphisms; 993 patients (87%) had either one or two polymorphisms. We found polymorphism frequency pattern similar in both sexes. Although men had higher homocysteine levels, MTHFR polymorphisms did not associate with homocysteine levels in either sex. In 901 women tested, the ICD-9 coded incidence of arterial clots was 20%, and of venous clots was 21%; in 240 men tested, the incidence of arterial clots was 48% and of venous clots was 40%. MTHFR polymorphisms did not associate with arterial or venous clots in either sex. Based on CPT billing codes, a minimal cost estimate was $137,000 for performing these 1,141 MTHFR tests.Conclusions: MTHFR testing was costly and did not add useful information during thrombophilia evaluation in this patient population.

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Coastal erosion risk assessment in the coastal area of Muara Asam Asam, Tanah Laut Regency

E3S Web of Conferences ◽

10.1051/e3sconf/202132501023 ◽

2021 ◽

Vol 325 ◽

pp. 01023

Author(s):

Rizki Adriadi Ghiffari ◽

Haryo Dwito Armono

Keyword(s):

Risk Assessment ◽

Coastal Area ◽

Coastal Erosion ◽

Coastal Areas ◽

Risk Level ◽

Residential Areas ◽

Economic Activities ◽

Dry Land ◽

Erosion Risk ◽

The Relationship

Coastal erosion is the process of land erosion in coastal areas due to waves and ocean currents which reduce land and can adversely affect socio-economic activities in coastal areas. Coastal erosion risk assessment in the estuary is a development of previous research, because the erosion and accretion processes do not only occur along the shoreline, but also on the side facing river water bodies, due to the confluence of fluvial and marine processes. The landward shift of the shoreline in the Muara Asam Asam coastal area has reached 90 meters in the last 28 years, and has been detrimental because the area is a densely populated area with major economic activities in the fisheries and agriculture sectors. This study aims to determine the coastal erosion risk level zones based on the relationship among vulnerability and consequence parameters, through distance decay weighted based method. The results indicate that Muara Asam Asam has high risk zones of coastal erosion, especially in densely populated residential areas and dry land agriculture on the west side of the estuary, due to the lack of implementation of preventive measures through hard coastal structure and coastal zoning policy to protect socio-economic activities and coastal ecological environments.

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