METAMORPHOSIS VISUALIZATION WITH AUGMENTED REALITY USING MARKER-BASED TRACKING

Metamorphosis is a cycle of biological animal growth. Learning Metamorphosis is a part of learning for students in schools specifically in the area of biology subjects. Unfortunately, the observing activities take time, and finding an animal specimen is limited to study the metamorphosis cycle. This research proposes an innovative solution to overcome these problems which is the implementation of augmented reality technology. The animal metamorphosis cycle process is visualized into 4-dimensional objects to improve interaction for the student on learning metamorphosis during learning sessions. The Marker-Based Tracking method is used as an approach where the location of the tracking pattern on the marker has been determined in advance as the place where the augmented reality object appears. The results of this study indicate that using a marker-based tracking method can improve students' understanding of metamorphosis.

Use of STF-1/56 preparation for prevention and treatment of infectious diseases in fish

Carps exposed to infection were investigated objects. The body of aquatic organisms is not a natural reproduction environment of Salmonella, however, as a result of cross-infection, Salmonella bacillus may appear in fish. The use of probiotic additives from living bacteria has become an alternative to the use of antibiotics, probiotics have antagonistic abilities against pathogens. A group of carp yearlings was selected for research in an aquarium installation. The average weight of animal specimen was 900 grams. During the experiment, the main hydrochemical parameters were monitored. Oxygen disturbances were not allowed by using aerators. The temperature of the water was kept at 19–20 ° C. The diet was standard for raising carp and herbivorous fish. The presence of Salmonella bacteria in the control group was revealed in all fish three days after infection. Experimentally established high efficiency of the drug "STF-1/56" in fish farming, as a method of combating Salmonella infection without disrupting the microbial balance of microflora in the intestinal cavity.

Five new Lathys species (Araneae: Dictynidae) from South China and the first description of the male of Lathys spiralis Zhang, Hu & Zhang, 2012

Dictynidae spiders were collected from Jinggang Mountain National Nature Reserve, Jiangxi Province, China in the past four years. Five new species are described and illustrated with photographs, SEMs and line drawings: Lathys adunca Liu spec. nov. (male), L. deltoidea Liu spec. nov. (female), L. fibulata Liu spec. nov. (female), L. huangyangjieensis Liu spec. nov. (male, female) and L. zhanfengi Liu spec. nov. (female). Both sexes of the species L. spiralis Zhang, Hu & Zhang, 2012 were collected from leaf litter in Jinggangshan University and the male is described for the first time. All specimens are deposited in the Animal Specimen Museum, Life Science College, at the Jinggangshan University (ASM-JGSU).

Estimating Segment Inertial Parameters Using Fan-Beam DXA

Body segment inertial parameters are required as input parameters when the kinetics of human motion is to be analyzed. However, owing to interindividual differences in body composition, noninvasive inertial estimates are problematic. Dual-energy x-ray absorptiometry (DXA) is a relatively new imaging approach that can provide cost- and time-effective means for estimating these parameters with minimal exposure to radiation. With the introduction of a new generation of DXA machines, utilizing a fan-beam configuration, this study examined their accuracy as well as a new interpolative data-reduction process for estimating inertial parameters. Specifically, the inertial estimates of two objects (an ultra-high molecular density plastic rod and an animal specimen) and 50 participants were obtained. Results showed that the fan-beam DXA, along with the new interpolative data-reduction process, provided highly accurate estimates (0.10–0.39%). A greater variance was observed in the center of mass location and moment of inertia estimates, likely as a result of the course end-point location (1.31 cm). However, using a midpoint interpolation of the end-point locations, errors in the estimates were greatly reduced for the center of mass location (0.64–0.92%) and moments of inertia (–0.23 to –0.48%).

Penicillium janthinellum. [Descriptions of Fungi and Bacteria].

A description is provided for Penicillium janthinellum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: This is primarily a soil species (DOMSCH et al., 1980), but has also been isolated from dates, almonds, groundnuts, pistachios, maize, barley, fermented and cured meats (PITT & HOCKING, 1997), air, tulip, animal specimen preserved in formaldehyde and PVC/paper wall covering (CABI BIOSCIENCE, 1999). DISEASES: Penicillium janthinellum has been reported on one occasion from sputum and bronchoalveolar lavage from an AIDS patient (GILL et al., 1997). GEOGRAPHIC DISTRIBUTION: World-wide.