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The Touch And Go Camera System (TAGCAMS) is a three-camera-head instrument onboard NASA’s OSIRIS-REx asteroid sample return mission spacecraft. The purpose of TAGCAMS is to facilitate navigation to the target asteroid, (101955) Bennu; confirm acquisition of the asteroid sample; document asteroid sample stowage; and provide supplementary imaging for OSIRIS-REx science investigations. During the almost two-year OSIRIS-REx outbound cruise phase we pursued nine TAGCAMS imaging campaigns to check, calibrate and characterize the camera system’s performance before asteroid arrival and proximity operations began in late 2018. The TAGCAMS in-flight calibration dataset provides the relevant information to enable the three cameras to complete their primary observation goals during asteroid operations. The key performance parameters that we investigated in flight included: linearity, responsivity (both point source and extended body), dark current, hot pixels, pointing, image geometry transformation, image quality and stray light. Analyses of the in-flight performance either confirmed the continued applicability of the TAGCAMS ground test results or substantially improved upon the ground test knowledge. In addition, the TAGCAMS calibration observations identified the source of a spacecraft outgassing feature that guided successful remediation efforts prior to asteroid arrival.

In the context of linear elasticity, a stress singularity of the type Knrδ(δ<0) may exist at sharp re-entrant corners, with an intensity Kn. In general the order of the stress singularity δ and the stress intensity differ for symmetric (mode I) and antisymmetric (mode II) loading. Under general mixed-mode loadings, the magnitudes of the mode I and II intensities fully characterize the stress state in the region of the corner. A failure criterion based on critical values of these intensities may be appropriate in situations where the region around the corner dominated by the singular fields is large compared to intrinsic flaw sizes, inelastic zones, and fracture process zone sizes. We determined the mode I and II stress intensities for notched mode I tensile specimens and notched mode II flexure specimens using a combination of the Williams (1952) asymptotic method, dimensional considerations, and detailed finite element analysis. We carried out a companion experimental study to extract critical values of the mode I and II stress intensities for a series of notched polymethyl methacrylate (PMMA) tensile and flexure specimens with notch angles of 90-. The data show that excellent failure correlation is obtained, in both mode I and II loading, through the use of a single parameter, the critical stress intensity. We then analyzed and tested a series of T-shaped structures containing 90- corners. The applied tensile loading results in mixed-mode loading of the 90- corners. Failure of the specimens is brittle and can be well-correlated with a critical mode I stress intensity criterion using the results of the notched mode I tensile tests. This is attributed to large difference in the strength of the stress singularities in modes I and II: δ= -0.4555 and -0.0915 for modes I and II for a 90- notch. As a result, the mode I loading dominates the failure process for the 90- corner in the T-structure.

Front page exclusives dominate broadcast newspaper reviews, raise brand awareness, and drive sales. Even small gifts from drug companies and financial companies to doctors and financial advisers change work behaviour.

Rayner is right to challenge celebrity involvement in public health campaigns. 1 The Department of Health for England has just launched two celebrity led campaigns, with both press releases trumpeting celebrity endorsement. 2 3 Freud Communications, a consumer marketing agency, is now responsible for the department's public health campaigns. 4 Because celebrity endorsement is routine in consumer marketing, it is in the interest of Freud, and its commercial clients, to use celebrities in its work for the department. www.guardian.co.uk/media/2011/dec/20/matthew-freud-contract-department-health. 5 Chapman S. Does celebrity involvement in public health campaigns deliver long term benefit?

Purpose - To investigate web-shopping behaviour in Hong Kong: identification of the general attitude towards web-shopping; relationships between past web-shopping experience, attitude towards web-shopping, adoption decisions, search behaviour and web-shopping intentions; and influences of promotional offers and product categories on web-shopping intentions.Design methodology approach - Relevant hypotheses were constructed and a web-based questionnaire survey was than conducted using technically educated subjects. The proposed hypotheses were statistically tested and principal components analysis and structural equations were used to produce a structural model.Findings - Web-shopping intentions are directly affected by web-search behaviour and web-shopping adoption decisions, and are indirectly affected by web-shopping attitudes, past web-shopping experiences and past experience with the web. Web-search behaviour was a stronger factor than adoption decision in terms of influencing web-shopping intentions. The presence of promotional offers had a positive effect on web-shopping intentions, and web-shopping intentions were different for different product categories.Research limitations implications - The sample employed was composed of technically educated undergraduates and graduates and thus limiting generalizations to a higher levels.Practical implications - Experienced internet users and experienced web-shoppers are more likely to be potential future web-shoppers. Those who have a general dislike for shopping and who tend to buy in a great haste when the purchase becomes absolutely necessary may eventually be another group to become web-shoppers.Originality value - The primary value of this paper lies in extending the understanding of Hong Kong web-shopper behaviour, and in developing an empirical model that can partly explain the processes leading to web-shopping intentions.

Risks and uncertainties inherent in the Internet often deter consumers from using it as a shopping channel. Companies usually assume that advanced technologies will solve such problems. This paper argues that many of these problems require non-technical solutions: solutions that are associated with good business practice. Customer feedback may not only raise technical issues such as security and privacy, but also non-technical issues such as guaranteed delivery time and the ability to talk live to customer services representatives for help. This paper analyses four aspects of running a business - trust, quality, value, and risk - in an Internet setting and offers three solutions. While there is no complete guarantee of sustainability and profitability in any business, the careful consideration of the issues discussed will help shield the business from pitfalls, which if not detected and dealt with, can cause the closure of an otherwise healthy business.

Change4Life, the government's \"social marketing\" programme, is integral to its \"call to action\" on obesity in England. 1 The new Change4Life marketing strategy, published with the obesity plan, says that the government will use external suppliers for public relations. www.telegraph.co.uk/health/healthnews/8781716/Married-couples-exercise-less-than-single-people.html. 3 Bates C. Couples live more in sickness than in health: survey reveals married people exercise less.