2,230 research outputs found
Increasing awareness of recycling programs for elementary aged children through interactive multimedia
The purpose of this thesis is to create an effective interactive multimedia training method for elementary aged children, on recycling awareness. The age group chosen for this project is children 8 to 11. This report will focus on the goals and objectives of the project, the areas being researched and the procedure, along with the outcome of the project. In children\u27s psychology, understanding of different stages of intellectual development of a child is critical. According to Piaget, concrete operational thought is made up of operations-mental actions that allow children to do mentally what they had done physically before. Concrete operations are also mental actions that are reversible. ...Thus, a concrete operation is a reversible mental action on real, concrete objects. The age group of children chosen for this project is in the period of concrete operational development. They operate on the basis of what they can see and feel. They go much more with intuition or perception. For the children, it\u27s hard to understand things that they can\u27t visualize. A goal of this project was to be sure that children would be able to understand easily. This project, however, should emphasize concrete objects (i.e. pictures, drawings, texts) to provide the children with a better understanding of recycling through interactive multimedia. In addition, in the nature of interaction with this age group of children, the real issue lies in how to communicate effectively to develop their awareness and their respect for the natural environment. Therefore, this interactive multimedia project must be kept simple in functionality, consistent in feedback and varied in the use of multimedia. The method also needs to include a sense of humor, build confidence, and educational vision. The objective of this project is to design an effective multimodal interface for a children\u27s interactive multimedia computer game that employs simple texts, pictures, graphics, sound and animation. By simply pointing and clicking on particular hot spots with a computer mouse, graphics and sound come alive on a computer screen. The significance of this project is to develop the children\u27s awareness and their respect for the natural environment through interaction with a computer
Difference in the color stability of direct and indirect resin composites
Indirect resin composites are generally regarded to have better color stability than direct resin composites since they possess higher conversion degree. OBJECTIVE: The present study aimed at comparing the changes in color (ΔE) and color coordinates (ΔL, Δa and Δb) of one direct (Estelite Sigma: 16 shades) and 2 indirect resin composites (BelleGlass NG: 16 shades; Sinfony: 26 shades) after thermocycling. MATERIAL AND METHODS: Resins were packed into a mold and light cured; post-curing was performed on indirect resins. Changes in color and color coordinates of 1-mm-thick specimens were determined after 5,000 cycles of thermocycling on a spectrophotometer. RESULTS: ΔE values were in the range of 0.3 to 1.2 units for direct resins, and 0.3 to 1.5 units for indirect resins, which were clinically acceptable (Δ
Elastic constants of borocarbides. New approach to acoustic Measurement technique
A new version of the phase method of determining the sound velocity is
proposed and implemented. It utilizes the ``Nonius'' measurement technique and
can give acceptable accuracy (~1%) in samples of submillimeter size.
Measurements of the sound velocity are made in single-crystal samples of the
borocarbides RNi2B2C (R = Y,Lu,Ho). The elastic constants and the Debye
temperature are calculated.Comment: 5 figures, 2 table
Spectral Deconvolution Analysis of Mafic Mineral in Irregular Mare Patches on the Moon
Irregular mare patches (IMPs), recently discovered on the Moon, are eruptions of magma on the lunar surface, and their
origins are still in question. While prior studies on IMPs have mainly focused on optical image analysis, in this study, an
analysis of the characteristics of minerals is performed exemplary for the first time. Modified Gaussian model (MGM)
deconvolution was applied to the infrared spectrum to confirm the properties of the mafic mineral. Mafic minerals were
analyzed for 6 olivine-rich (Ol-rich) IMPs out of 91 currently reported, and only 4 of them yielded results of significance. All
four sites showed more abundance of Fe than Mg, and manifested a weak relationship with Mg-suite rock. However, a problem
was discovered during the MGM application process due to pilot implementation. In order to solve this problem, it is required
to adjust the MGM initial condition settings more precisely and to increase the signal to noise ratio of the observation data.
Moreover, it is necessary to analyze the mineral properties for all IMPs considering minerals other than Ol and utilize them to
deduce the origin of the IMPs
CORRELATION BETWEEN LEUKOCYTE TELOMERE LENGTH AND DRUG ELUTING STENT STRUT COVERAGE BY OPTICAL COHERENCE TOMOGRAPHY
El cementiri de Sant Andreu fou inaugurat el 1839 i pertanyia a Sant Andreu del Palomar que formava part del Pla de Barcelona. Sembla que fou la primera població del Pla que va disposar de cementiri desprès de la construcció del de Poblenou
Vesicocutaneous Fistula Presenting Groin Abscess and Chronic Osteomyelitis in Pubic Bone
The authors report a case of bladder fistula associated with a medial thigh cutaneous fistula and chronic osteomyelitis of the pubic bone 11 years after surgery for a pelvic bone fracture and bladder rupture. In the presenting case, despite the clinical suspicion, none of the diagnostic tools demonstrated the bladder fistula preoperatively. This case suggests that bladder repair should be prepared, even if the bladder fistula cannot be confirmed by imaging studies because the amount of urine leakage can be minimal or the fistula can close spontaneously
Dissecting Fission Yeast Shelterin Interactions via MICro-MS Links Disruption of Shelterin Bridge to Tumorigenesis
Shelterin, a six-member complex, protects telomeres from nucleolytic attack and regulates their elongation by telomerase. Here, we have developed a strategy, called MICro-MS (Mapping Interfaces via Crosslinking-Mass Spectrometry), that combines crosslinking-mass spectrometry and phylogenetic analysis to identify contact sites within the complex. This strategy allowed identification of separation-of-function mutants of fission yeast Ccq1, Poz1, and Pot1 that selectively disrupt their respective interactions with Tpz1. The various telomere dysregulation phenotypes observed in these mutants further emphasize the critical regulatory roles of Tpz1-centered shelterin interactions in telomere homeostasis. Furthermore, the conservation between fission yeast Tpz1-Pot1 and human TPP1-POT1 interactions led us to map a human melanoma-associated POT1 mutation (A532P) to the TPP1-POT1 interface. Diminished TPP1-POT1 interaction caused by hPOT1-A532P may enable unregulated telomere extension, which, in turn, helps cancer cells to achieve replicative immortality. Therefore, our study reveals a connection between shelterin connectivity and tumorigenicity
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