Nedra - Waltzes

https://digitalcommons.library.umaine.edu/mmb-ps/2773/thumbnail.jp

SEASONAL CHANGES IN GEOMORPHOLOGY AND SEDIMENT VOLUME OF NEW HAMPSHIRE BEACHES: Insights into a Highly-Engineered, Paraglacial, Bedrock-Influenced Mixed Sand and Gravel Coastal System

Coastal systems worldwide are undergoing increasing pressure as a result of growing anthropogenic influences, accelerated eustatic sea-level rise, and more intense storms due to climate change. Beaches in New Hampshire have not been systematically studied to assess seasonal changes in beach morphology, erosional and accretional trends, controls on beach processes, or the impact of climate change. In order to further the understanding of a highly-engineered, paraglacial, bedrock-influenced coastal system, six major New Hampshire beaches were monitored from July 2015 to August 2016 for changes in beach morphology and sediment volume. A GNSS rover beach profiling system was utilized to measure beach profiles. Post-processing of the GNSS data revealed that the paths of the profiles often deviated from a shore-perpendicular line. Therefore, a novel processing method was developed to correct and interpolate the profiles to shore-perpendicular lines for comparison. In addition, sediment samples were collected on the upper, middle, and lower beach during summer 2015 to characterize the beaches. Seasonal changes in beach morphology, in addition to sediment grain size distribution, were utilized to classify the beaches and provide insights into beach behavior and possible controls. Overall, the three northern beaches (Wallis Sands, Foss Beach, and Jenness Beach) are bimodal, granular to pebbly fine to medium sand, dissipative beaches. These beaches tend to be narrow, flat, and featureless welded barriers bounded by bedrock headlands or glacial deposits. The northern beaches tended to undergo vertical erosion and accretion on the scale of weeks to months across the entire width of the beach. Two of the three northern beaches had stations that underwent major net sediment volume changes over the study period. For example, a station on Foss Beach accreted up to an average of 0.87m3 per meter of beach width, while a station on Jenness Beach eroded an average 0.59m3 per meter of beach width. The southern three beaches (North Hampton Beach, Hampton Beach, and Seabrook Beach) are unimodal, granular to pebbly medium to coarse sand, intermediate to reflective beaches. The southern beaches are wide barriers with well-developed berms and large sediment volumes. These beaches tended to undergo major erosion and accretion of the berm, including berm crest retreat/advance on the scale of weeks to months. The southern beaches generally ended the study period with negative net sediment volume change (0.2-0.6m3 eroded per meter of beach width, with a maximum of 0.67m3 eroded per meter of beach width at southern Seabrook Beach). The results of this study suggest that New Hampshire beaches are vulnerable to erosion under current and future threats of sea-level rise and more intense storms related to climate change

Plato\u27s Reply to the \u27Worst Difficulty\u27 Argument of the Parmenides: Sophist 248a-249d

I offer a plausible reading of Sophist 248a-249d and its relation to Parmenides 133a-135a. My thesis supports the reconstruction of the \u27worst difficulty\u27 as a valid argument, thus allowing it to live up to its description in the text. This view contributes to a portrait of Plato who developed a sophisticated theory of relations, who then had the honesty and insight to see and record the \u27worst difficulty\u27 that the theory had for the hard-won theory of Forms, and who then tenaciously worked out a viable and integrated solution to that difficulty. It should come as no surprise - and it is the overriding virtue of this thesis - that the \u27man of wide experience and natural ability\u27 of the Parmenides should turn out to be Plato himself

Early Maternal Employment and Children's Academic and Behavioral Skills: a Comparative Analysis

Thesis advisor: Rebekah L. ColeyThe goal of this dissertation was to delineate the repercussions of early maternal employment for children's early developmental competencies in the U.S., Australia, and the U.K. and to test economic and psychological theories regarding potential mechanisms linking maternal employment with children's development, including time, money, and stress. Prior research has focused on older, non-representative cohorts of American children, with results suggesting full-time employment in the first year after childbirth is linked with lower cognitive and behavioral skills. It is unclear if these same patterns exist in more recent cohorts and in other countries with differing cultural expectations and policy environments for families, most notably more comprehensive parental leave policies. Data came from representative samples of children born in each country between 2000 and 2004: (1) the U.S.'s Early Childhood Longitudinal Study-Birth Cohort (N=10,100), (2) Australia's Longitudinal Study of Australian Children-Birth Cohort (N=5,093), and (3) the U.K.'s Millennium Cohort Study (N= 18,497). In each dataset, mother's employment data were coded to assess the month of entry into employment following childbirth. Extensive, well-validated direct assessment, mother report, and teacher report measures assessed children's cognitive and behavioral skills following entry into formal schooling. Descriptive data showed very different patterns of entry into employment: American mothers entered employment the earliest and at the highest intensity with more gradual, lower intensity returns by Australian and British mothers. OLS regression models weighted with propensity scores and controlling for a rich array of child and maternal characteristics suggested that early movements into employment had few associations with children's cognitive or behavioral skills in any of the countries. These neutral associations were not differentiated by maternal time, stress, or wages. However, as non-maternal household income decreased, early employment was linked with higher cognitive skills in the U.S. while employment begun before two years was linked with higher behavioral skills in Australia. There was no evidence of moderation by non-maternal household income in the U.K. Findings are discussed in terms of their implications for work family policy.Thesis (PhD) — Boston College, 2013.Submitted to: Boston College. Lynch School of Education.Discipline: Counseling, Developmental, and Educational Psychology

New Hampshire Beaches: Sediment Characterization

The grain size of the natural sediment composing the major New Hampshire beaches under summer equilibrium conditions was determined as a first step in assessing the optimal sediment size that would be needed for beach nourishment. In summer, 2015, seven major beaches including Wallis Sands, Foss Beach, Jenness Beach, North Hampton Beach, North Beach, Hampton Beach, and Seabrook Beach were sampled along three to five transects extending from the dunes or engineering structures (e.g., seawalls) to the low water line. In addition, the beach cross-section was profiled using a rover GPS system or the Emery method (profile rods and the horizon). Results indicate that during the low energy conditions of summer 2015, many of the sandy beaches appeared to vary between fine to medium sands with granular sediments and scattered pebbles. Two of the beaches (North Hampton and Seabrook) were somewhat coarser with medium to coarse sands with granular material and scattered pebbles. However, the gravel fractions tended to be under-sampled due to the methodology used. Also, higher energy conditions were not sampled. Therefore, additional studies are needed to fully understand the seasonal changes or changes related to calm (low energy) versus stormy (high energy) conditions in sediment size and characteristics and verification of results presented here

Fi-Fi

Illustration of woman with shawl dancinghttps://scholarsjunction.msstate.edu/cht-sheet-music/2057/thumbnail.jp

THE NATURE AND ROLE OF THE INTERMEDIATE DISTRICT IN AMERICAN EDUCATION

Abstract not availabl