Self-disclosure in intimate relationships: Associations with individual and relationship characteristics over time

Self-disclosure is an act of intimacy and serves as a maintenance strategy, and yet very little prior research has examined self-disclosure within relationships with data collected multiple times over an extended period of time and from both partners. With longitudinal data collected from both partners in young adult dating couples, we examined how self-disclosure is associated with both individual characteristics (e.g., responsiveness, self-esteem) and relationship characteristics (satisfaction, love, commitment). Overall, men and women indicated a similar high level of self-disclosure. As hypothesized, positive associations were found between self-disclosure and the individual characteristics of self-esteem, relationship esteem (confidence as an intimate partner), and responsiveness (as indicated by data collected at Time 1). Self-disclosure also was positively associated with relationship quality (satisfaction, love, and commitment). Similar positive associations were typically found at the follow-up waves, although in many cases the correlations were not significant and were more modest in magnitude. Level of self-disclosure was generally not predictive of whether the couple stayed together or broke up over time, although the more that women perceived their partner disclosed at Time 1, the less likely the couple was to break up by Time 2. It is speculated that the generally high level of self-disclosure at Time 1 for the entire sample limited the degree to which self-disclosure could predict which relationships stayed together and which broke up over time. In an analysis that involved the subsample of couples who stayed together thoughout the study (many of whom married by Time 5), no significant change was found in levels of self-disclosure

Second messenger-mediated tactile response by a bacterial rotary motor

When bacteria encounter surfaces, they respond with surface colonization and virulence induction. The mechanisms of bacterial mechanosensation and downstream signaling remain poorly understood. Here, we describe a tactile sensing cascade in Caulobacter crescentus in which the flagellar motor acts as sensor. Surface-induced motor interference stimulated the production of the second messenger cyclic diguanylate by the motor-associated diguanylate cyclase DgcB. This led to the allosteric activation of the glycosyltransferase HfsJ to promote rapid synthesis of a polysaccharide adhesin and surface anchoring. Although the membrane-embedded motor unit was essential for surface sensing, mutants that lack external flagellar structures were hypersensitive to mechanical stimuli. Thus, the bacterial flagellar motor acts as a tetherless sensor reminiscent of mechanosensitive channels

Prostaglandin E2-like activity of 20:3n-9 platelet lipoxygenase end-product

Abstract5,8,11-Icosatrienoic acid (20:3n-9), a fatty acid associated with platelet hyperactivity, was oxygenated by platelet lipoxygenase. The end-product of this pathway was purified by high-performance liquid chromatography (HPLC) and characterized as 12-hydroxy-5,8,10-icosatrienoic acid [12-OH-20:3(5,8,10)] by capillary gas-liquid mass spectrometry. When tested upon platelet aggregation, 12-OH-20:3(5,8,10) exhibited a biphasic effect. At low concentrations (below 5 × 10−7 M) it potentiated aggregation but inhibited it at higher levels, a pattern similar to that obtained with prostaglandin E2. However, since the amounts of 12-OH-20:3(5,8,10) generated under thrombin stimulation are in the range of concentrations with potentiating effects, it seems that the 12-OH derivative is responsible for the hyperaggrebility of 20: 3n-9-rich platelets

Resource dedication problem in a multi-project environment

There can be different approaches to the management of resources within the context of multi-project scheduling problems. In general, approaches to multiproject scheduling problems consider the resources as a pool shared by all projects. On the other hand, when projects are distributed geographically or sharing resources between projects is not preferred, then this resource sharing policy may not be feasible. In such cases, the resources must be dedicated to individual projects throughout the project durations. This multi-project problem environment is defined here as the resource dedication problem (RDP). RDP is defined as the optimal dedication of resource capacities to different projects within the overall limits of the resources and with the objective of minimizing a predetermined objective function. The projects involved are multi-mode resource constrained project scheduling problems with finish to start zero time lag and non-preemptive activities and limited renewable and nonrenewable resources. Here, the characterization of RDP, its mathematical formulation and two different solution methodologies are presented. The first solution approach is a genetic algorithm employing a new improvement move called combinatorial auction for RDP, which is based on preferences of projects for resources. Two different methods for calculating the projects’ preferences based on linear and Lagrangian relaxation are proposed. The second solution approach is a Lagrangian relaxation based heuristic employing subgradient optimization. Numerical studies demonstrate that the proposed approaches are powerful methods for solving this problem

The Ursinus Weekly, June 8, 1964

Dr. Sturgis retires from faculty after 40 years; Honored by alumni, Saturday • 222 seniors receive degrees at Commencement today; Dr. John Ciardi addresses class and guests • Dr. Roger Staiger given US patent • Whitians select officers • Placement Office report • UC chapter APO chosen to participate in Denver convention • Alumni seek student writers • Editorial: Contemplation • UC hosts Summer assembly: Four denominations represented • Awards presented at WAA banquet • Wagner to attend conference • Paul I. Guest, recipient of 1964 Alumni Award • Student government heads comment on year\u27s activities • Graduation 50 years ago • Permanent class officers announced by seniors • Commencement awards and prizes • New soph rulers plan Fall customs program • Dr. D. Fortnum receives Summer chemistry grant • Greeks name IFS officers • Greek gleanings • Marsteller gets science grant at Colorado State • Library plans Summer changes: Collections expanded • Campus project underway: Bond and Miller design $1,580,000 student activities building • Chest drive totals$1,700https://digitalcommons.ursinus.edu/weekly/1275/thumbnail.jp

Climbing depth-bounded adjacent discrepancy search for solving hybrid flow shop scheduling problems with multiprocessor tasks

This paper considers multiprocessor task scheduling in a multistage hybrid flow-shop environment. The problem even in its simplest form is NP-hard in the strong sense. The great deal of interest for this problem, besides its theoretical complexity, is animated by needs of various manufacturing and computing systems. We propose a new approach based on limited discrepancy search to solve the problem. Our method is tested with reference to a proposed lower bound as well as the best-known solutions in literature. Computational results show that the developed approach is efficient in particular for large-size problems

The reflective fostering programme: evaluating the intervention co-delivered by social work professionals and foster carers

PURPOSE: There is little evidence regarding how to best support the emotional well-being of children in foster care. This paper aims to present the evaluation of an adaptation of the reflective fostering programme, a group-based programme to support foster carers. This study aimed to explore whether a version of the programme, co-delivered by a social work professional and an experienced foster carer, was acceptable and relevant to foster carers and to gather data on programme effectiveness. DESIGN/METHODOLOGY/APPROACH: In total, 38 foster carers attended the programme and took part in this study. Data was collected regarding carer- and child-focused outcomes at pre-intervention, post-intervention and four-month follow-up. Focus interviews were also conducted to further assess acceptability and relevance for foster carers. FINDINGS: Analysis of quantitative outcome showed statistically significant improvements in all outcomes considered including foster carers stress and carer-defined problems, as well as carer-reported measures of child difficulties. Focus group interviews with foster carers suggested that the programme as co-delivered by a foster carer and a social worker was felt to be relevant and helpful to foster carers. ORIGINALITY/VALUE: These results provide a unique contribution to limited understandings of what works for supporting foster carers and the children in their care. Promising evidence is provided for the acceptability and relevance of the revised version of this novel support programme and its effectiveness in terms of carer- and child-related outcome measures. This work paves the way for further necessary impact evaluation

Efficacy of different antifouling treatments for seawater cooling systems

In an industrial seawater cooling system, the effects of three different antifouling treatments, viz. sodium hypochlorite (NaClO), aliphatic amines (Mexel1432) and UV radiation, on the characteristics of the fouling formed were evaluated. For this study a portable pilot plant, as a side-stream monitoring system and seawater cooling system, was employed. The pilot plant simulated a power plant steam condenser, having four titanium tubes under different treatment patterns, where fouling progression could be monitored. The nature of the fouling obtained was chiefly inorganic, showing a clear dependence on the antifouling treatment employed. After 72 days the tubes under treatment showed a reduction in the heat transfer resistance (R) of around 70% for NaClO, 48% for aliphatic amines and 55% for UV, with respect to the untreated tube. The use of a logistic model was very useful for predicting the fouling progression and the maximum asymptotic value of the increment in the heat transfer resistance (DRmax). The apparent thermal conductivity (l) of the fouling layer showed a direct relationship with the percentage of organic matter in the collected fouling. The characteristics and mode of action of the different treatments used led to fouling with diverse physicochemical properties

The Ursinus Weekly, May 18, 1964

Quipping Ramblers roam through the bluegrass: Group scores with relaxed style • Graduation speakers named: Knettler at Baccalaureate, Ciardi at Commencement;; Updike and Weiss receive honorary degrees • Girls flock east, flee UC doldrums • Faculty upholds MSGA decision: Exception noted in one case • Women program Big-Little Sister activities • Thomas and Moser win in run-off • APO seeks funds for proposed service project • UC freshmen to take part in WIP panel • Doanes take year leave, teach at Miles College • PSEA elects new officers • Editorial: Ursinus men? • War in the name of peace • Letters to the editor • Ruby 1900 edition • Crossettes avenge W.C. loss; Arch-rival crushed 14-4 • Tennis improves in winning 1 of 3 • Baseball has winning week with victories in 2 of 3 • Tennis drops 3rd; Blanked 5-0 by WC • Trackmen tromp as W.C. and Muhlenberg bow • Greek gleanings • Parsons to teach on Summer grant • Final examination schedulehttps://digitalcommons.ursinus.edu/weekly/1274/thumbnail.jp