Design aesthetics leading to m-loyalty in mobile commerce

Researchers have previously examined the technology acceptance model (TAM) in many contexts, including the Internet. More recently TAM has been enhanced to include a hedonic component of enjoyment but the effect has rarely been investigated in a mobile commerce context. In addition, specific antecedents of TAM related to design aesthetics have not been examined within the mobile domain. Our research filled these gaps, and discovered that visual design aesthetics did significantly impact perceived usefulness, ease of use, and enjoyment, all of which ultimately influenced users’ loyalty intentions towards a mobile service.     

Correlates of psychosocial well-being among overweight adolescents: The role of the family.

An ethnically diverse sample of at-risk-for-overweight and overweight youths (body mass index greater than the 85th percentile for age and gender; n = 667 male participants, and n = 684 female participants) completed a school-based survey measuring family variables (connectedness, mealtime environment, and weight commentary), psychosocial well-being (depressed mood, body satisfaction, and self-esteem), and unhealthy weight-control behaviors; all measures were assessed concurrently. Hierarchical linear regression analyses revealed that measures of general family connectedness, priority of family meals, and positive mealtime environment were significantly positively associated with psychological well-being and inversely associated with depressive symptoms and unhealthy weight-control behaviors. Familial weight commentary (i.e., weight-based teasing and parental encouragement to diet) was associated with many indicators of poor psychological health. The authors conclude that greater psychosocial well-being and fewer unhealthy weight-control behaviors are associated with making family time at meals a priority, creating a positive mealtime atmosphere, and refraining from weight commentary. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Chiral platinum(II) metallointercalators with potent in vitro cytotoxic activity

Four platinum(II) metallointercalating complexes of 1,10-phenanthroline (phen) with the chiral ancillary ligands trans-R,R- and trans-S,S-1,2-diaminocyclohexane (R,R- and S,S-dach, respectively), and N,N'-dimethyl-R,R- and N,N'-dimethyl-S,S-1,2-diaminocyclohexane (Me(2)-R,R-dach and Me(2)-S,S-dach, respectively) have been synthesised and characterised. The crystal structure of [Pt(Me(2)-S,S-dach)(phen)](ClO(4))(2)1.5 H(2)O (C(20)H(26)Cl(2)N(4)O(9.5)Pt) has been determined; orthorhombic, space group P2(1)2(1)2(1)(No. 19), a=23.194(8), b=25.131(9), c=8.522(3) A. In vitro cytotoxic assays (IC(50)) in the human bladder cancer cell line 5637 and in the murine leukemia L1210 cell line revealed that [Pt(S,S-dach)(phen)](ClO(4))(2) (0.091 and 0.13 microM, respectively) and [Pt(R,R-dach)(phen)](ClO(4))(2) (0.54 and 1.50 microM, respectively) were more cytotoxic than cisplatin (0.31 and 0.50 microM, respectively) and considerably more cytotoxic than their methylated counterparts, [Pt(Me(2)-R,R-dach)(phen)](ClO(4))(2) and [Pt(Me(2)-S,S-dach)(phen)](ClO(4))(2) (both>23 microM). Chiral discrimination for [Pt(S,S-dach)(phen)](ClO(4))(2) over its R,R-enantiomer was observed in all 13 cancer cell lines investigated. Moreover, [Pt(S,S-dach)(phen)](ClO(4))(2) was more active than cisplatin in all cell lines tested and shows only partial cross-resistance to cisplatin in two cisplatin resistant cell lines.     

Perma-Stabil乳化香精

一向以微胶囊化香精而闻名的芬美意公司,如今为乳化香精带来了新的标准,公司开发出的新型乳化香精Perma-Stabill(R) CE and Perma-Stabil(R) DE2,克服了传统型乳化香精的缺点,现介绍如下.     

Specificity of treatment effects: Cognitive therapy and relaxation for generalized anxiety and panic disorders.

[Correction Notice: An erratum for this article was reported in Vol 76(5) of Journal of Consulting and Clinical Psychology (see record 2008-13625-021). In the article, "Specificity of Treatment Effects: Cognitive Therapy and Relaxation for Generalized Anxiety and Panic Disorders," by Jedidiah Siev and Dianne L. Chambless (Journal of Consulting and Clinical Psychology, 2007, Vol. 75, No. 4, pp. 513-522), the individual measures were not listed in the domains labeled "Panic" and "Cognitive" for the ?st and Westling (1995) citation in Table 3. The corrected table is included, with the added text appearing in bold font.] The aim of this study was to address claims that among bona fide treatments no one is more efficacious than another by comparing the relative efficacy of cognitive therapy (CT) and relaxation therapy (RT) in the treatment of generalized anxiety disorder (GAD) and panic disorder without agoraphobia (PD). Two fixed-effects meta-analyses were conducted, for GAD and PD separately, to review the treatment outcome literature directly comparing CT with RT in the treatment of those disorders. For GAD, CT and RT were equivalent. For PD, CT, which included interoceptive exposure, outperformed RT on all panic-related measures, as well as on indices of clinically significant change. There is ample evidence that both CT and RT qualify as bona fide treatments for GAD and PD, for which they are efficacious and intended to be so. Therefore, the finding that CT and RT do not differ in the treatment of GAD, but do for PD, is evidence for the specificity of treatment to disorder, even for 2 treatments within a CBT class, and 2 disorders within an anxiety class. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Parameter elicitation in probabilistic graphical models for modelling multi-scale food complex systems

Faced with the fragmented and heterogeneous character of knowledge regarding complex food systems, we have developed a practical methodology, in the framework of the dynamic Bayesian networks associated with Dirichlet distributions, able to incrementally build and update model parameters each time new information is available whatever its source and format. From a given network structure, the method consists in using a priori Dirichlet distributions that may be assessed from literature, empirical observations, experts opinions, existing models, etc. Next, they are successively updated by using Bayesian inference and the expected a posteriori each time new or additional information is available and can be formulated into a frequentist form. This method also enables to take (1) uncertainties pertaining to the system; (2) the confidence level on the different sources of information into account. The aim is to be able to enrich the model each time a new piece of information is available whatever its source and format in order to improve the representation and thus provide a better understanding of systems. We have illustrated the feasibility and practical using of our approach in a real case namely the modelling of the Camembert-type cheese ripening.