494 research outputs found
The Hudson Estuary
Guidebook for field trips in western Massachusetts, northern Connecticut and adjacent areas of New York: 67th annual meeting October 10, 11, and 12, 1975: Trip A-
Chronicles of Oklahoma
Article discusses the history of the Native American Church of North America, its origin, organization, presence in Oklahoma, the pattern of a regular service, the use of peyote as a religious sacrament, and the way the church is regarded by other religious denominations
What can the take-up of other programs teach us about how to improve take-up of health insurance programs?
Many uninsured Americans are already eligible for free or low-cost public coverage through Medicaid or CHIP but do not take up that coverage. Several other programs, such as food stamps and unemployment insurance, also have less than complete take-up rates and take-up rates vary considerably among programs. This paper examines the take-up literature across a variety of programs to learn what effects non-financial features, such as administrative complexity, have on take-up. We find that making benefit receipt automatic is the most effective means of ensuring high take-up, while there is little evidence that stigma is important. Overall, surprisingly little is known about the quantitative impact, of non-financial characteristics of programs on take-up. New research that could be used to draw measurable causal inferences about how features as administrative complexity, renewal rules, and organizational structure affect participation, would be extremely valuable.
Improved Earth Oblateness Rate Reveals Increased Ice Sheet Losses and Mass-Driven Sea Level Rise
Satellite laser ranging (SLR) observations are routinely applied toward the estimation of dynamic oblateness, C(sub 20), which is the largest globally integrated component of Earth's time-variable gravity field. Since 2002, GRACE and GRACE Follow-On have revolutionized the recovery of higher spatial resolution features of global time-variable gravity, with SLR continuing to provide the most reliable estimates of C (sub 20).We quantify the effect of various SLR processing strategies on estimating C(sub 20) and demonstrate better signal recovery with the inclusion of GRACE-derived low-degree gravity information in the forward model. This improved SLR product modifies the Antarctic and Greenland Ice Sheet mass trends by -15.4 and -3.5 Gt/year, respectively, as compared to CSR TN11, and improves global mean sea level budget closure by modifying sea level rise by +0.08 mm/year. We recommend that this new C(sub 20) product be applied to RL06 GRACE data products for enhanced accuracy and scientific interpretation
The Service Use Index: A Tool for Examining Rural/Urban Differences
Development of tools for identifying and tracking differences in older adult service utilization by race, ethnicity, income, and geographic area is vital in the face of current demographic and economic changes in rural areas, particularly in areas experiencing rapid demographic changes. In this conceptual article, we explain how to calculate a service use index that compares service utilization of a specific group of older adults to that of the entire older adult population. We then illustrate its usefulness with a case example using geographic information systems (GIS). This unique approach can be utilized to understand differences across fields of practice, enhance planning to address differences, and monitor changes over time
Optic nerve sheath meningioma: a case report
A case of a 75-year old male with right-sided exopthalmos is presented. Outside proptosis of the right eye was initially observed 6 years ago. Opthalmological and endocrinological clinical examination as well as laboratory tests revealed no pathology from optic nerve disc, optic bulb and thyroid related hormones. MRI study demonstrated an optic nerve meningioma. The key imaging findings and the differential diagnosis were discussed in this present paper
Retention period differentially attenuates win–shift/lose–stay relative to win–stay/lose–shift performance in the rat
Suppression of Chlorella vulgaris Growth by Cadmium, Lead, and Copper Stress and Its Restoration by Endogenous Brassinolide
Brassinosteroids play a significant role in the amelioration of various abiotic and biotic stresses. In order to elaborate their roles in plants subjected to heavy metals stress, Chlorella vulgaris cultures treated with 10−8 M brassinolide (BL) were exposed to 10−6–10−4 M heavy metals (cadmium, lead and copper) application. Under heavy metals stress, the growth and chemical composition (chlorophyll, monosaccharides, and protein content) have been decreased during the first 48 h of cultivation. The inhibitory effect of heavy metals on C. vulgaris cultures was arranged in the following order: copper > lead > cadmium. C. vulgaris cultures treated with BL in the absence or presence of heavy metals showed no differences in the endogenous level of BL. On the other hand, treatment with heavy metals results in BL level very similar to that of control cell cultures. These results suggest that the activation of brassinosteroids biosynthesis, via an increase of endogenous BL, is not essential for the growth and development of C. vulgaris cells in response to heavy metals stress. Simultaneously, BL enhanced the content of indole-3-acetic acid, zeatin, and abscisic acid in cultures treated with heavy metals. Levels per cell of chlorophylls, protein, and monosaccharides are all increased by BL treatment when compared to nontreated control cells. Application of BL to C. vulgaris cultures reduced the accumulation of heavy metals stress on growth, prevented chlorophyll, monosaccharides, and protein loss, and increased phytochelatins content. The arrested growth of C. vulgaris cells treated with heavy metals was restored by the coapplication of BL. It suggested that BL overcame the inhibitory effect of heavy metals. From these results, it can be concluded that BL plays the positive role in the alleviation of heavy metals stress
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