Reproduction, movements, and population dynamics of the southern kingfish, Menticirrhus americanus, in the northwestern Gulf of Mexico

Menlicirrhus americanus in the northwestern Gulf of Mexico mature at 150-220 mm TL and 12-14 months of age, with males maturing when 10-40 mm smaller than females. Spawning occurs within a broad period from February through November with two discrete peaks which coincide with the periodicity of downcoast alongshore currents (towards Mexico) in spring and fall. This species occurs at depths of less than 5 to 27 m, being most abundant at 5 m or shallower. Young-of-the-year recruit primarily at 5-9 m or shallower and gradually expand their bathymetric range. Age determination by length frequency is feasible in M. americanus but not as simple as in species that spawn in one major period of the year. Only one or two spawned groups normally predominated at anyone time and no more than three co-occurred with few possible exceptions. Observed mean sizes were 138 mm TL at 6 months, and 192 and 272 mm at ages I and II, respectively. Typical maximum size was 296-308 mm and typical maximum age is probably 2-3 years. The largest fISh captured were 392 and 455 mm. Observed sex ratio was 1.2 females to 1 male. Weight, girth, and length-length regressions are presented.(PDF file contains 27 pages.

Perceptions of Factors Related to Therapeutic Change in Face-To-Face and Distance Counseling Environments

Videoconferencing is quickly becoming a part of daily life as technologies using the Internet and computer advances are now being employed to deliver synchronous, highly discernible video and audio content on devices used for daily communication. Videoconferencing is also being increasingly used by counseling professionals to provide counseling sessions and other services, and counseling accrediting and licensing bodies have recognized its use in some professional practice situations. This experimental study used a regional sample of counselors, other mental health professionals, and counselors-in-training (N = 126), to examine whether participants, randomly assigned, rated three different measures of counseling process-working alliance, session suitability, and counselor qualities-differently when witnessing two videos of a simulated, basic, sufficiently-working, typical, college mental health counseling session. The videos were produced to be equivalent, except that one was conducted by high-quality, dedicated videoconferencing technology (VC), and the other done in the traditional face-to-face (FTF) manner. A discriminant analysis confirmed a significant difference between the FTF and VC groups. Examination of the canonical discriminant function revealed a large canonical correlation, with an effect size of 21.5 %. Standardized discriminant function and structure coefficients were examined to evaluate the predictors that contributed to the group differences. The main finding was that the quality of counselor attractiveness, and to a lesser extent, the bond in the working alliance, were most influential in contributing to this difference. Results also revealed that the groups did not differ on any of the control variables-age, gender, and attitude toward technology. Results for the group centroids showed that the FTF group was substantially higher than the VC group, indicating that the group differences pertaining to counselor attractiveness and working alliance bond can be attributed to the FTF group. However, a comparison of the mean values for all of the counseling process variables showed that differences between the groups on almost all of the variables were very small. This indicates that, even with the significant finding of differences between the groups, participants found the FTF and VC sessions to be more similar than different. Implications for common factors approaches and counseling practice are discussed

Where is the trust? For the good of the people

In an era where the public has greater access to information than ever before, why is it that social capital in many communities is so divided and diminished? Traditionally people have experienced and generated social capital through direct contact with families and social spaces, including neighbourhoods, communities, clubs and the workplace. Nowadays, many relationships and networks operate at a global level and in cyber-space – enabled through technology and screen-mediated interactions. While there are many benefits to contemporary technologies and innovations, including new forms of sociability, these same developments have also resulted in a loss of sociability; a loss of social capital, social cohesion and trust in institutions. Western democratic societies, including Australia, appear to have become open to the exploitation of change and uncertainty in communities, amplified by propagandists and the manipulation of both mainstream and social media; to sow social discord and create fear and uncertainty, including a loss of trust in scientific research originating from universities. It is the trust in knowledge and research that has guided many governments to look beyond political cycles and plan for inclusive, tolerant societies, receptive to population diversity creating unique social assets. It is in this context that the development of new forms of social spaces, including well-designed public buildings, prospectively hold the regeneration of social capital in pursuit of more economically successful and socially cohesive communities. Regional Australia, including the regional city of Townsville, is negotiating this shift

Supporting Students with Open Textbooks

Have you ever considered adopting an open textbook for your course? If you are concerned about your students\u27 access to their assigned textbook or if you are interested in exploring what open textbooks exist in your field, this session is for you. You\u27ll learn how to find and use free, high quality, digital textbooks

Full hydrodynamic reversibility of the weak dimerization of vancomycin and elucidation of its interaction with VanS monomers at clinical concentration

© 2017 The Author(s). The reversibility and strength of the previously established dimerization of the important glycopeptide antibiotic vancomycin in four different aqueous solvents (including a medically-used formulation) have been studied using short-column sedimentation equilibrium in the analytical ultracentrifuge and model-independent SEDFIT-MST analysis across a range of loading concentrations. The change in the weight average molar mass M w with loading concentration was consistent with a monomer-dimer equilibrium. Overlap of data sets of point weight average molar masses M w(r) versus local concentration c(r) for different loading concentrations demonstrated a completely reversible equilibrium process. At the clinical infusion concentration of 5 mg.mL-1 all glycopeptide is dimerized whilst at 19 μg.mL-1 (a clinical target trough serum concentration), vancomycin was mainly monomeric

The Optimal Capital Structure of Banks: Balancing Deposit Insurance, Capital Requirements and Tax-Advantaged Debt

The capital structure and regulation of financial intermediaries is an important topic for practitioners, regulators and academic researchers. In general, theory predicts that firms choose their capital structures by balancing the benefits of debt (e.g., tax and agency benefits) against its costs (e.g., bankruptcy costs). However, when traditional corporate finance models have been applied to insured financial institutions, the results have generally predicted corner solutions (all equity or all debt) to the capital structure problem. This paper studies the impact and interaction of deposit insurance, capital requirements and tax benefits on a bankÇs choice of optimal capital structure. Using a contingent claims model to value the firm and its associated claims, we find that there exists an interior optimal capital ratio in the presence of deposit insurance, taxes and a minimum fixed capital standard. Banks voluntarily choose to maintain capital in excess of the minimum required in order to balance the risks of insolvency (especially the loss of future tax benefits) against the benefits of additional debt. Because we derive a closed- form solution, our model provides useful insights on several current policy debates including revisions to the regulatory framework for GSEs, tax policy in general and the tax exemption for credit unions

Molecular flexibility of citrus pectins by combined sedimentation and viscosity analysis

The flexibility/rigidity of pectins plays an important part in their structure-function relationship and therefore on their commercial applications in the food and biomedical industries. Earlier studies based on sedimentation analysis in the ultracentrifuge have focused on molecular weight distributions and qualitative and semi-quantitative descriptions based on power law and Wales-van Holde treatments of conformation in terms of "extended" conformations [Harding, S. E., Berth, G., Ball, A., Mitchell, J.R., & Garcìa de la Torre, J. (1991). The molecular weight distribution and conformation of citrus pectins in solution studied by hydrodynamics. Carbohydrate Polymers, 168, 1-15; Morris, G. A., Foster, T. J., & Harding, S.E. (2000). The effect of degree of esterification on the hydrodynamic properties of citrus pectin. Food Hydrocolloids, 14, 227-235]. In the present study, four pectins of low degree of esterification 17-27% and one of high degree of esterification (70%) were characterised in aqueous solution (0.1 M NaCl) in terms of intrinsic viscosity [η], sedimentation coefficient (s°20,w) and weight average molar mass (Mw). Solution conformation/flexibility was estimated qualitatively using the conformation zoning method [Pavlov, G.M., Rowe, A.J., & Harding, S.E. (1997). Conformation zoning of large molecules using the analytical ultracentrifuge. Trends in Analytical Chemistry, 16, 401-405] and quantitatively (persistence length Lp) using the traditional Bohdanecky and Yamakawa-Fujii relations combined together by minimisation of a target function. Sedimentation conformation zoning showed an extended coil (Type C) conformation and persistence lengths all within the range Lp=10-13 nm (for a fixed mass per unit length)