AdvancedMCS推动下一代网络IP应用发展

在过去的12～18个月内AdvancedMC逐渐成熟，相关应用也越来越多。这部分是由于MicroTCA模块化结构的市场接受度逐步提高，AdvancedMCs作为关键的模块组成自然受到欢迎。另外的原因则是客户和供应商将这种新的模块化方法应用到下一代网络（NGN）当中。它结合了智能包处理、实时安全和媒体融合（语音／视频／内容）等功能。目前来看，这些产品正逐步兑现当初的承诺。     

Perceived control, coping efficacy, and avoidance coping as mediators between spousal unsupportive behaviors and psychological distress.

This study examined whether avoidance, coping efficacy, and perceived control mediate the effects of spouses" unsupportive behaviors on patient psychological distress among 191 married individuals enrolled in cancer treatment. Results of the structural equation analyses suggested that avoidance and coping efficacy mediated the relationship between spouses" unsupportive behaviors and patient psychological distress. Perceived control of emotional aspects of the illness, including emotional responses and relationships with family and friends, and perceived control of the medical course of the cancer did not mediate the relationship between spouses" unsupportive behaviors and patient psychological distress. These findings suggest 2 mechanisms to explain why unsupportive responses from spouses may be associated with psychological distress among cancer patients. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Intrapsychic conflict versus developmental deficit: A causal modeling approach to examining psychoanalytic theories of narcissism.

Over the past 15 years, disorders of the self have occupied the attention of the psychoanalytic community. In particular, Otto Kernberg and Heinz Kohut have written extensively about narcissism, but from distinctly different theoretical vantage points. Each theorist has attracted adherents, but the debate between the conflict and deficit models of narcissism has been largely polemical, serving to further polarize the psychoanalytic community. Using the techniques of causal modeling, the article introduces this powerful data analytic strategy to psychoanalytic researchers and tests a model of narcissism which permits a direct, empirical comparison of some of the ideas of Kernberg and Kohut. In a number of strategic comparisons involving the theoretical underpinnings of narcissism--the structural stability of the self, damaged self-esteem, and grandiosity--these data appear to be more consistent with the deficit model, although various aspects of the conflict model also find support. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reinforcement of Shear Thinning Protein Hydrogels by Responsive Block Copolymer Self‐Assembly

Shear thinning hydrogels are promising materials that exhibit rapid self‐healing following the cessation of shear, making them attractive for applications including injectable biomaterials. Here, self‐assembly is demonstrated as a strategy to introduce a reinforcing network within shear thinning artificially engineered protein gels, enabling a responsive transition from an injectable state at low temperatures with a low yield stress to a stiffened state at physiological temperatures with resistance to shear thinning, higher toughness, and reduced erosion rates and creep compliance. Protein‐polymer triblock copolymers capable of the responsive self‐assembly of two orthogonal networks are synthesized. Midblock association forms a shear‐thinning network, while endblock aggregation at elevated temperatures introduces a second, independent physical network into the protein hydrogel. These reversible crosslinks introduce extremely long relaxation times and lead to a five‐fold increase in the elastic modulus, significantly larger than is expected from transient network theory. Thermoresponsive reinforcement reduces the high temperature creep compliance by over four orders of magnitude, decreases the erosion rate by at least a factor of five, and increases the yield stress by up to a factor of seven. Combined with the demonstrated potential of shear thinning artificial protein hydrogels for various uses, this reinforcement mechanism broadens the range of applications that can be addressed with shear‐thinning physical gels.     

Where there is no middle ground.

Comments on the J. Martin and J. Sugarman (see record 2000-08148-003) discussion on finding the middle ground between modern and postmodern approaches to psychology. The current author notes that Martin and Sugarman make some key philosophical mistakes, end up simply reinterpreting and re-embracing the pragmatist vision of individualism and progress, and ultimately do nothing to address the underlying critique that postmodernism makes of modernism. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Beyond search and communication: Development and validation of the Internet Self-efficacy Scale (ISS)

Internet self-efficacy is a pivotal construct for understanding a wide range of online activities. Human activity has been developing in new directions along with the evolution of the Internet over the last few decades. A self-efficacy measure which might appropriately reflect these changes is still lacking in the literature. To address this research gap, the current study developed the Internet Self-efficacy Scale (ISS) and tested its validity and reliability. A sample of 349 undergraduate students completed an assessment battery including the ISS. A 17-item five-factor model was extracted from an EFA. Using a CFA, the 17-item five-factor model obtained from the EFA was cross-validated and the results revealed acceptable model fits where χ²(df = 107) = 198.987, NFI = .918, CFI = .960, and RMESA = .067 (95% C.I.; 052, .081). Also, the ISS showed good convergent validity, evidenced by the significant relationships with Internet outcome expectancy and Internet anxiety.     

Endoesthetics. Part 1: Intra-radicular rehabilitation

The flared canal, whether due to age, carious extension, pulpal pathology or endodontic access, presents a restorative management problem. Intra-radicular rehabilitation prior to post fabrication and/or cementation, increases the chance for operative success. This is the first in a series of articles that introduces the concept of esthetic considerations in post-endodontic restorative therapy.