Response to the Loss of a Romantic Relationship: Differences by Time Since the Loss, Gender, and Attachment Style

Approximately 25% of college students experience the loss of a romantic relationship each year. It has been proposed that such a loss results in a grief reaction similar to that experienced after a death. Theory also suggests that such major life events are an opportunity for growth. But very little research has been conducted to date to test these propositions. The review of the literature also suggested that gender and interpersonal attachment style are related to differential responses to romantic loss. This study tested Schneider’s (1984) mode! of response to loss, which predicts that the degree of involvement in three response-tasks of discovering: What\u27s Lost (grief), What’s Left (healing), and What’s Possible (growth) is related to time since the loss. Three hundred and sixteen college students were surveyed, using a research version (RTL-Short) of the Response to Loss Inventory (RTL). Information regarding the participants interpersonal attachment style was also gathered. A between-subjects, ex post facto and correlational design utilizing Pearson product-moment correlations, ANOVA and graphic/regression was used to analyze the data. The internal consistency reliability estimates of the RTL-S subscales were excellent. Results generally supported the three-task model. Involvement in What’s Lost (grief) was higher for those with relatively recent losses. Regression analysis suggested a curvilinear relationship between time and What’s Left (healing), with those participants having either recent or distant losses scoring lower than those with losses of an intermediate time. Involvement in What’s Possible (growth) was higher for those with more distant losses. There was no evidence for gender differences in What’s Lost or What’s Possible. Those with dismissing avoidant and secure attachment styles experienced the least grief, while those with fearful avoidant and preoccupied styles experienced the most grief. Those with preoccupied attachment also were involved in What’s Possible (growth) with less intensity than the other participants

Pismo clams and sea otters

Sea otter foraging along Monterey Bay beaches and at Atascadero State Beach has precluded recreational Pismo clam fisheries at six major clamming beaches. Outside the sea otter's foraging range Pismo clam stocks are yielding good catches; apparently the stringent controls on the recreational fishery is adequate to maintain the State's Pismo clam stocks. Clammer interviews at Orange and Los Angeles County beaches and at beaches near Pismo Beach and Morro Bay and in Monterey Bay revealed the clam stocks to be on a healthy, sustainable yield basis. Exceptionally large numbers of small 1.5 to 3.5 inch Pismo clams were reported at all clam beaches surveyed north of Pt. Conception indicating good year class survival in recent years. Sea otters forage dense Pismo clam beds by moving along a "front", progressively foraging from one beach to the next, reducing the clams to low levels before moving on. Some sea otters continue to forage throughout the areas previously depleted by the larger aggregate moving northward, thus the large numbers of sublegal clams in the 1.5 to 3.5 inch size group in these intertidal and shallow subtidal areas are not expected to reach legal size in numbers sufficient to develop a recreational fishery. In Monterey Bay about 60,000 Pismo clams were removed or killed by human activity in the April 1974 to March 1975 period. A rough estimate of the Pismo clams consumed by sea otters during this same period in Monterey Bay is over 500,000 clams. (51pp.

Soyuz/ACRV accommodation study

Included is a set of viewgraphs that present the results of a study conducted at the LaRC Space Station Freedom Office at the request of the Space Station Freedom Level 1 Program Office and the JSC ACRV Project Office to determine the implications of accommodating two Soyuz TM spacecraft as Assured Crew Return Vehicles (ACRV) on the Space Station Freedom (SSF) at the Permanently Crewed Capability (PCC) stage. The study examined operational as well as system issues associated with the accommodation of the Soyuz for several potential configuration options. Operational issues considered include physical hardware clearances, worst case Soyuz departure paths, and impacts to baseline operations such as Pressurized Logistics Module (PLM) exchange, Space Station Remote Manipulator System (SSRMS) attachment, Extravehicular Activity (EVA), and automatic rendezvous and docking (AR&D). Systems impact analysis included determining differences between Soyuz interface requirements and SSF capabilities for the Electrical Power System (EPS), Thermal Control System (TCS), Communications and Tracking (C&T), Audio-Video Subsystem (A/V), Data Management System (DMS), and Environmental Control and Life Support System (ECLSS). Significant findings of this study have indicated that the current AV capability of the Soyuz will need to be increased to provide adequate departure clearances for a worst case escape from an uncontrolled SSF and that an interface element will be required to mate the Soyuz vehicles to station, provide for AR&D structural loads, and to house Soyuz-to-SSF system interfaces

Spectral signature of short attosecond pulse trains

We report experimental measurements of high-order harmonic spectra generated in Ar using a carrier-envelope-offset (CEO) stabilized 12 fs, 800nm laser field and a fraction (less than 10%) of its second harmonic. Additional spectral peaks are observed between the harmonic peaks, which are due to interferences between multiple pulses in the train. The position of these peaks varies with the CEO and their number is directly related to the number of pulses in the train. An analytical model, as well as numerical simulations, support our interpretation

Species biofouling risk assessment

Marine biological invasions have increased throughout the world’s oceans to the extent that no region is considered ‘pristine’. At least 1781 species have been identified as introduced in marine or estuarine systems somewhere in the world. Many of these species have been introduced to several regions, inferring an ease of transport by human-mediated mechanisms. A substantial number of these species have either demonstrable or inferred impacts. Marine species have been transported around the world in many ways, both intentionally and accidentally. Concern has typically focused on vessel traffic, specifically the transport of species in ballast water, which is used for trim and stability of commercial vessels. This led to the development of the International Maritime Organization’s International convention for the control and management of ship's ballast water and sediments that was adopted in 2004. More recently, attention has shifted to species that attach to the external surfaces of vessels, including commercial, fishing, and non-trading vessels such as barges, dredges, tugs and recreational yachts. Such species are collectively known as biofouling. Science-based risk assessment is a key element of Australia’s biosecurity system and underpins the nation’s biosecurity policies. However, there are currently no Australian regulatory measures for preventing the introduction of invasive marine species through biofouling. The objective of this project was to conduct a risk assessment to identify and assess the biosecurity risk to Australia associated with the entry, establishment and spread of marine pest species as biofouling. This risk assessment is therefore intended to inform Australian Government policy development for continued management of marine pest risks as biofouling. The risk assessment followed a five-step process: identifying endpoints identifying hazards determining consequences determining likelihood calculating risk. Risk was evaluated across three identified endpoints: inoculation, establishment and spread. International voyages to Australia were assessed for the risk they pose in relation to inoculation and establishment. Likelihood of domestic spread was assessed through analysis of domestic movement of international shipping, other domestic vessel movements/traffic and through natural means. Key hazards for Australia were deemed to be those species with a recognised invasion history, but not currently known to be present in Australian waters. More than 1781 species that have been identified as being introduced to some region of the world were evaluated for their association with biofouling and transport pressure. Species association with biofouling was assessed on the basis of life history characteristics. Transport pressure was calculated as a function of the intersection between a species’ global distribution and the opportunities for transport calculated as a combination of the number of vessels arriving in Australia from regions where a species is present. The consequence (or impact) was assessed for each species on four core values of environment, economic, social/cultural and human health, based on information derived from the literature. The vast majority of species had neither demonstrable nor inferred impacts stated in the published literature, significantly decreasing the ability to assess risk. For those species with available information about their consequence, risk was calculated as the product of likelihood and consequence. The result of this analysis was a restricted suite of 56 species that have a high probability of arrival into Australian waters and the potential to cause moderate to extreme impacts across one or more of the four core values if successfully introduced

Intensity Dependence of Laser-Assisted Attosecond Photoionization Spectra

We study experimentally the influence of the intensity of the infrared (IR) probe field on attosecond pulse train (APT) phase measurements performed with the RABITT method (Reconstruction of Attosecond Beating by Interference in Two-Photon Transitions). We find that if a strong IR field is applied, the attosecond pulses will appear to have lower-than-actual chirp rates. We also observe the onset of the streaking regime in the breakdown of the weak-field RABITT conditions. We perform a Fourier-analysis of harmonic and sideband continuum states and show that the mutual phase relation of the harmonics can be extracted from higher Fourier components.Comment: preprint to article in Laser Physics Nikolai B. Delone memorial issue 11 pages, 9 figures, published online 15 July 200