Experience with statically-generated proxies for facilitating Java runtime specialisation

Issues pertaining to mechanisms which can be used to change the behaviour of Java classes at runtime are discussed. The proxy mechanism is compared to, and contrasted with other standard approaches to this problem. Some of the problems the proxy mechanism is subject to are expanded upon. The question of whether statically-developed proxies are a viable alternative to bytecode rewriting was investigated by means of the JavaCloak system, which uses statically-generated proxies to alter the runtime behaviour of externally-developed code. The issues addressed include ensuring the type safety, dealing with the self problem, object encapsulation, and issues of object identity and equality. Some performance figures are provided which demonstrate the load the JavaCloak proxy mechanism places on the system

Cold gas in the inner regions of intermediate redshift clusters

Determining gas content and star formation rate has known remarkable progress in field galaxies, but has been much less investigated in galaxies inside clusters. We present the first CO observations of luminous infrared galaxies (LIRGs) inside the virial radii of two intermediate redshift clusters, CL1416+4446 (z=0.397) and CL0926+1242 (z=0.489). We detect three galaxies at high significance (5 to 10 sigma), and provide robust estimates of their CO luminosities, L'CO. In order to put our results into a general context, we revisit the relation between cold and hot gas and stellar mass in nearby field and cluster galaxies. We find evidence that at fixed LIR (or fixed stellar mass), the frequency of high L'CO galaxies is lower in clusters than in the field, suggesting environmental depletion of the reservoir of cold gas. The level of star formation activity in a galaxy is primarily linked to the amount of cold gas, rather than to the galaxy mass or the lookback time. In clusters, just as in the field, the conversion between gas and stars seems universal. The relation between LIR and L'CO for distant cluster galaxies extends the relation of nearby galaxies to higher IR luminosities. Nevertheless, the intermediate redshift galaxies fall well within the dispersion of the trend defined by local systems. Considering that L'CO is generally derived from the CO(1-0) line and sensitive to the vast majority of the molecular gas in the cold interstellar medium of galaxies, but less to the part which will actually be used to form stars, we suggest that molecular gas can be stripped before the star formation rate is affected. Combining the sample of Geach et al. (2009, 2011) and ours, we find evidence for a decrease in CO towards the cluster centers. This is the first hint of an environmental impact on cold gas at intermediate redshift.Comment: Accepted for publication in Astronomy and Astrophysic

Bilingual Storybook Project

IMPACT. 1: Impact for Salem Elementary students: The storybook provides stories the children helped create, and also reading opportunities in their two languages. The project also connects them one-on-one with college students who talk to them about the importance of reading and writing. -- 2. Impact for Ohio State students: The Bilingual Storybook Project connects the classroom to the community, providing undergraduate students with real-world knowledge of local Spanish-speaking residents and the literacy needs of children in Columbus City Schools. The project also provides a known readership, which gives our students enhanced self-awareness as writers. -- 3. Impact for families of Salem students: A central goal of the Bilingual Storybook Project is to provide interesting, accessible, personalized reading materials to families where English is not spoken in the home, enabling those families to participate to a greater extent in their children's educational experiences.OSU PARTNERS: Department of Spanish and Portuguese; College of Arts and SciencesCOMMUNITY PARTNERS: Columbus City Schools; Salem Elementary School Ms. Myers, Principal, Ms. Guglielmi, ESL teacher; Franklin Imaging, Emily CastlePRIMARY CONTACT: Jill K. Welch ([email protected])The Bilingual Storybook Project is a literacy partnership between Ohio State's Dept. of Spanish and Portuguese and Columbus City Schools. Salem Elementary School's youngest English as a Second Language students who speak Spanish at home provide artwork and short bios to our Honors composition students, who in turn write original stories in English and in Spanish, featuring the children and their artwork in the stories. Each Salem Elementary child receives a storybook containing the stories and artwork at a celebration of reading and writing attended by the participants

The occurrence and paragenesis of the ores of titanium

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The stabilisation of the Nx phase in mixtures

The phase behaviour of mixtures between two symmetric dimers, CBC9CB and the ether-linked analogue CBOC9OCB was investigated by Polarizing Optical Microscopy (POM), Differential Scanning Calorimetry (DSC) and X-Ray Diffraction (XRD) studies. The dimeric constituents are fully miscible and the construction of a temperature-composition phase diagram reveals a surprising amplification of the stability of the Nx phase in compositions of up to 37 wt% of CBOC9OCB in CBC9CB. The origin for this enhancement of stability is discussed and an explanation based on chiral recognition is developed

Black Law Students Association at William & Mary Named National Chapter of the Year

Article posted on the William & Mary Law School website on April 7, 2009 announcing the 2009 National Chapter of the Year Award presented to the William & Mary Law School BLSA Chapter.https://scholarship.law.wm.edu/blackhistorywmls/1032/thumbnail.jp