A New Fracture Function Approach to QCD Initial State Radiation

Ordinary fracture functions, describing hadrons production in the deep inelastic scattering target fragmentation region, are generalized to account for the production of hadrons in arbitrary number, thus offering a renewed framework for dealing with QCD initial state radiation. We also propose a new jet-like observable which measures beam remnants and low-$p_{\perp}$ scattering fragments and derive its QCD evolution equations by using Jet Calculus. Possible implications for semi-inclusive deep inelastic scattering and hadron-hadron reactions are shortly discussed.Comment: 10 pages, 5 figures, revtex

Relationships between Primary Teacher Beliefs and Practice in the Primary Classrooms of a Small Urban School in East Tennessee.

The purpose of the study was to determine if a relationship existed between primary teacher beliefs, traditional or developmentally appropriate; and primary teacher practice, traditional or constructivist. A multi-case study design was employed for this qualitative research study. Eight teachers completed the Primary Teacher Questionnaire (PTQ) to determine the study group. Based on their responses to the teacher beliefs questionnaire, 3 teachers were chosen to further participate in the study. Three main research questions were analyzed with individual and cross-case analysis. Triangulation of data included observations, Assessment of Practices in Early Elementary Classrooms (APEEC) scores determined from observation data, and individual teacher interviews. The 3 teachers\u27 initial data from the questionnaire were also used. The teacher with traditional beliefs demonstrated traditional practices. The teacher with developmentally appropriate beliefs demonstrated constructivist practices. The teacher whose beliefs fell in the middle demonstrated practices that were more constructivist than traditional

Bioaugmentation mitigates the impact of estrogen on coliform-grazing protozoa in slow sand filters

Exposure to endocrine-disrupting chemicals (EDCs), such as estrogens, is a growing issue for human and animal health as they have been shown to cause reproductive and developmental abnormalities in wildlife and plants and have been linked to male infertility disorders in humans. Intensive farming and weather events, such as storms, flash flooding, and landslides, contribute estrogen to waterways used to supply drinking water. This paper explores the impact of estrogen exposure on the performance of slow sand filters (SSFs) used for water treatment. The feasibility and efficacy of SSF bioaugmentation with estrogen-degrading bacteria was also investigated, to determine whether removal of natural estrogens (estrone, estradiol, and estriol) and overall SSF performance for drinking water treatment could be improved. Strains for SSF augmentation were isolated from full-scale, municipal SSFs so as to optimize survival in the laboratory-scale SSFs used. Concentrations of the natural estrogens, determined by gas chromatography coupled with mass spectrometry (GC-MS), revealed augmented SSFs reduced the overall estrogenic potency of the supplied water by 25% on average and removed significantly more estrone and estradiol than nonaugmented filters. A negative correlation was found between coliform removal and estrogen concentration in nonaugmented filters. This was due to the toxic inhibition of protozoa, indicating that high estrogen concentrations can have functional implications for SSFs (such as impairing coliform removal). Consequently, we suggest that high estrogen concentrations could impact significantly on water quality production and, in particular, on pathogen removal in biological water filters

Coral reef communities, habitats and substrates in and near Sanctuary Zones of Ningaloo Marine Park

As Australia's longest fringing reef, Ningaloo Reef lies close to the mainland of northwest Australia in an area of high tourism potential. The establishment of Sanctuary Zones in and around the northern Ningaloo Marine Park has necessitated improvements in understanding of the biodiversity and distribution of habitats and substrates in the reef lagoon, its seaward barrier and the adjacent shelf environments. Using a combination of video transects in forereef to shelf environments, GPS controlled ground-truthing of colour satellite images and aerial photography for shallow lagoon settings, sixteen habitat types were identified and mapped regionally. Lagoon substrates described in previous reconnaissance were mapped here in greater detail, and some of the first data on poorly known forereef and shelf communities has been analysed from the video transects. There is a strong correlation between reef morphology, inherited substrate type and coral communities across reef lagoons and their associated barriers, where an energy gradient controlled by wave driven and tidal circulation in reef flat and lagoon environments is reflected in the distribution and cover of robust to more delicate coral communities. Morphological controls are less distinct in island-associated habitats, where increased turbidity, differing wave energy and more variable topography result in higher substrate variability and increasing soft coral communities. The data obtained in this study provide a background for management of biodiversity and monitoring of future impacts in some of the Sanctuary Zones likely to experience increased use in the northern Ningaloo Reef

NLO Semi-inclusive Drell-Yan cross-section in Quantum ChromoDynamics as a Factorization Analyzer

We evaluate in perturbative QCD the semi-inclusive Drell-Yan cross-section for the production of a single hadron accompaining the lepton pair. We demonstrate to one loop level a collinear factorization formula within the fracture functions approach. We propose such a process as a factorization analyzer in hadronic collisions. Phenomenological implications at the hadron colliders are briefly discussed.Comment: 10 pages, 2 figures, typos corrected, references added. Submitted to Phys.Lett.

Promoting Teen Contraceptive Use by Intervention with Their Mothers

Introduction: The purpose of this pilot study was to test a community outreach model designed to help mothers in a rural, medically underserved area navigate their teen daughters to health department services for long-acting reversible contraception (LARC) or alternative contraception. Methods: The pilot study used a single-group, post-test only design. Mothers of teen daughters (N=142) received a 1-hour, one-to-one intervention session (in outreach settings) from Community Liaisons. Mothers received training on how to communicate with their daughters about LARC and other contraceptive methods. Data were collected from June through October 2014, and analyzed in September 2015. Results: The authors re-contacted 104 of 142 mothers enrolled in the study, achieving a 73.2% retention rate. Of these, 12.5% had daughters receiving LARC. An additional 11.0% had daughters with health department–verified initiation of birth control pills. Only one correlate—whether a mother believed her daughter was having sex—was associated with receiving either LARC or birth control pills. Among those indicating they knew their daughters were having sex, 31.7% of the daughters received LARC/birth control pills. By contrast, among mothers not indicating they knew their daughters were having sex, only 2.9% had daughters receiving LARC or birth control pills. Conclusions: Findings suggest that an outreach-based program delivered directly to mothers of teen daughters may be a highly effective method for enhancing service utilization of LARC and the initiation of birth control pill use in a rural, medically underserved area

Facies, outcrop gamma ray and isotopic signature of exposed Miocene subtropical continental shelf carbonates, North West Cape, Western Australia

Exposed, uplifted Miocene carbonate sequences of the Cape Range, North West Cape, Western Australia, provide outcrop analogues of seismic sequences from offshore parts of the shelf. Facies include deep shelf marls (very fine and fine packstone), larger foram wackestone, floatstone and muddy rudstone, foram-coralline algal skeletal fragment packstone wackestone (shallow seagrass facies), lagoonal wackestone mudstone with scattered corals, and tidal flat laminites. The exposed Early Miocene units include the Mandu highstand, a sequence in the Tulki and one in the Middle Miocene Trealla Limestone. Sequences contain decameter scale (5 20 m thick), 4th-order parasequences evident on gamma ray logs and by facies stacking, that shallow and coarsen up; they appear to be due to eccentricity driven sea-level changes which may have been up to 50 m. Higher frequency meter-scale parasequences of deep water marl up into larger foram rudstone/floatstone (perhaps precession/obliquity) are evident at the base of the exposed Mandu section. These parasequences are not merely random storm deposits. This is indicated by the covariance of C and O isotopes, with the lighter values associated with deepening and deposition of deep shelf marls, and the heavier values being associated with shallowing and deposition of larger foram facies.The uplifted Miocene continental shelf sediments of the North West Cape preserve a record of eustasy, paleoclimate and paleoceanography and thus provide a window into factors affecting the shelf, that can be compared with coeval, better studied deep sea cores

School trip photomarathons: engaging primary school visitors using a topic focused photo competition

The aim of this study was to explore the potential of photomarathons as a fun and engaging way to support students making connections between what they learn during a museum visit and what they learn in school or other contexts. Sixty primary school pupils aged between six and eleven took part in a photomarathon activity during their trip to the Roman Baths. The children were split into three groups. During their visit each group undertook three one-hour activities, namely: a photomarathon, a hands-on artefact exploration activity with a museum education officer, and a school-group handheld audio tour. For the photomarathon activity the children worked in subgroups of three and, for 15–20 minutes, took photos on three themes around the museum. At the end of the available time the children submitted a set of photos, one photo for each theme. Photo galleries for each theme were then generated and made available on a website for the pupils. The students voted for the best photo in each theme gallery, and a small prize was awarded to the members of each team that took the winning photo. A week after the visit the children were asked a number of questions concerning their visit. The photomarathon was spontaneously mentioned by 41% (23/56) of the children as the best activity in their visit to the Roman Baths, which was more than any other activity they engaged in during the visit. Overall, of the three activities the children liked the photomarathon the best. There were no age differences in how engaging the children found the photomarathon activity and all children regardless of age were able to take photographs