19 research outputs found

    THE ROLE OF CIREUNDEU TRADITIONAL VILLAGE IN TOURISM MANAGEMENT

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    Traditional village is an area that is managed by a community with certain customary rules and has a strong relationship with the environment. These customary rules have the aim of maintaining the sacredness of the region and the culture that has been passed down from generation to generation. Cireundeu Traditional Village is one of many traditional villages in West Java, located in Leuwigajah Village, South Cimahi District, Cimahi City. The research, entitled "The Role of the Cirendeu Traditional Village in Tourism Management" aims to find out how effective the participation of indigenous peoples is in managing tourism in their area, especially in the Cirendeu Traditional Village. The results of this study are expected to enrich the repertoire of knowledge, especially those that can contribute to tourism in Indonesia. Based on the description, it can be concluded that the Cirendeu Traditional Village, which has a Sunda Wiwitan belief, can still survive with the beliefs and customs that have been passed down from generation to generation and take care of 3 forests, namely: the Prohibition Forest (Leuweung Larangan), Reforestation Forest (Leuweung Tutupan), Agricultural Forest (Leuweung Baladahan) very well which can be followed by how to take care of the forest which is very interesting to study and becomes a tourist attraction that can be explored philosophically for both local and foreign tourists

    Properties of wood composite plastics made from predominant Low Density Polyethylene (LDPE) plastics and their degradability in nature

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    To address concerns over plastics in the global environment, this project produced three wood plastics composites (WPCs) which could divert plastics from the waste stream into new materials. The three materials made had a ratio of 85%:15%, 90%:10%, and 95%:5% low density polyethylene (LDPE) to wood powder and were produced using the dissolution method. Physical and mechanical properties of each WPC were evaluated according to Japanese Industrial Standard (JIS) A 5908:2003. Their degradation in nature was evaluated through a graveyard test and assay test conducted in Coptotermes curvignathus termites. Results showed that density, moisture content, thickness swelling and water absorption of the WPCs fulfilled the JIS standard. The mechanical properties of these composites also met the JIS standard, particularly their modulus of elasticity (MOE). Modulus of rupture (MOR) and internal bonding (IB) showed in lower values, depending on the proportion of wood filler they contained. Discoloration of the WPCs was observed after burial in the soil with spectra alteration of attenuated transmission reflectance (ATR) in the band of 500–1000 cm-1 which could be assigned to detach the interphase between wood and plastics. As termite bait, the WPCs decreased in weight, even though the mass loss was comparatively small. Micro Confocal Raman Imaging Spectrometer revealed that termite guts from insects feeding on WPCs contained small amounts of LDPE. This indicated termite can consume plastics in the form of WPCs. Thus WPCs made predominantly of plastics can be degraded in nature. While producing WPCs can assist in decreasing plastics litter in the environment, the eventual fate of the LDPE in termites is still unknown

    Post-Thaw Characteristics of the Simmental Sperm Function in Different Ages of Bulls

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    This study aims to determine the effect of the age difference of Simmental bulls on motion characteristics, capacitation status, and DNA fragmentation of post-thawing sperms. The frozen semen used was collected from twelve bulls, which were divided into four groups of age, which include a group of two, four, ≥ 10 years old with high semen rejection (≥ 10 HR), and ≥ 10 years old with low semen rejection (≥ 10 LR). Computer Assisted Sperm Analysis (CASA) was used to determine sperm motion characteristics, capacitation status by chlortetracycline (CTC) staining, plasma membrane integrity, and viability using eosin-nigrosine staining. In contrast, the DNA fragmentation index was determined using the Sperm-Bos-halomax kit. The results showed that the four year old group had a higher total and progressive motility percentage than the others (p<0.05). In all groups, there was no significant difference among sperm kinematics such as VAP, VSL, VCL, STR, and ALH. However, the LIN, WOB, and BCF of the ≥ 10 HR year old groups were significantly lower (p<0.05) than those of the other groups. However, un-capacitated sperm was higher (p<0.05) in the two years and four years old groups compared to the ≥ 10 years old, while the four years old group had lower capacitated and acrosome-reacted (p<0.05) than the other groups. Furthermore, the sperm membrane integrity, viability, and DNA fragmentation index of the ≥ 10 years old groups were significantly higher (p<0.05) than those of the other groups. The research concludes that aging in the Simmental bull affects motion characteristics, capacitation status, and DNA fragmentation of post-thawing sperm. However, the semen rejection rate in the older bull did not directly affect the post-thawing sperm quality

    Improved Maturation Rate of Bovine Oocytes Following Sericin Supplementation in Collection and Maturation Media

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    Sericin is a water-soluble protein produced by silk cocoons and known to have antioxidant activity. This study is aimed to analyze the nuclear maturation and the quality of bovine oocytes in the collection and in vitro maturation (IVM) medium supplemented with sericin. Bovine oocytes were collected using a collection medium supplemented with sericin in 0 (control) concentrations, 0.1%, 0.5%, and 1%. Selected oocytes were then matured for 24 h at 38.5 oC in 5% CO₂ and evaluated for nuclear maturation. In the subsequent experiment, oocytes were collected and matured with or without 0.1% sericin at 38.5 oC in 5% CO2. Matured oocytes were counterstained with terminal deoxynucleotidyl transferase nick-end labeling (TUNEL) and Hoechst 33342. Matured oocytes were characterized by oocytes that reached the MII stage. The results showed that supplementation of 0.1% sericin in the collection medium increased the number of oocytes reaching the metaphase II (MII) stage compared to the control group (p<0.05). In the next experiment, sericin 0.1% in the collection and in vitro maturation media increased (p<0.05) the percentage of oocytes reaching the MII stage compared to control without sericin supplementation. Furthermore, the number of fragmented DNA in the oocytes showed no differences in all groups. It can be concluded that supplementation of 0.1% sericin in the collection and in vitro maturation media improved the nuclear status without affecting DNA fragmentation

    Multi-Radar Analysis of the 20 May 2013 Moore, Oklahoma Supercell through Tornadogenesis and Intensification

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    A multi-radar analysis of the 20 May 2013 Moore, Oklahoma, U.S. supercell is presented using three Weather Surveillance Radars 1988 Doppler (WSR-88Ds) and PX-1000, a rapid-scan, polarimetric, X-band radar, with a focus on the period between 1930 and 2008 UTC, encompassing supercell maturation through rapid tornado intensification. Owing to the 20-s temporal resolution of PX-1000, a detailed radar analysis of the hook echo is performed on (1) the microphysical characteristics through a hydrometeor classification algorithm (HCA)—inter-compared between X- and S-band for performance evaluation—including a hail and debris class and (2) kinematic properties of the low-level mesocyclone (LLM) assessed through ΔVr analyses. Four transient intensifications in ΔVr prior to tornadogenesis are documented and found to be associated with two prevalent internal rear-flank downdraft (RFD) momentum surges, the latter surge coincident with tornadogenesis. The momentum surges are marked by a rapidly advancing reflectivity (ZH) gradient traversing around the LLM, descending reflectivity cores (DRCs), a drop in differential reflectivity (ZDR) due to the advection of smaller drops into the hook echo, a decrease in correlation coefficient (ρhv), and the detection of debris from the HCA. Additionally, volumetric analyses of ZDR and specific differential phase (KDP) signatures show general diffusivity of the ZDR arc even after tornadogenesis in contrast with explosive deepening of the KDP foot downshear of the updraft. Similarly, while the vertical extent of the ZDR and KDP columns decrease leading up to tornadogenesis, the phasing of these signatures are offset after tornadogenesis, with the ZDR column deepening the lagging of KDP

    Effect of Sericin Supplementation in Collection Medium on Bovine Oocyte Nuclear Maturation

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    Sericin is a water-soluble globular protein derived from silkworm Bombyx mori and has the competency as an antioxidant. This study was conducted to examine the effect of sericin supplementation in the collection medium on bovine oocyte nuclear maturation. Sericin with different concentration (0 (control), 0.1 %, 0.5 %, and 1%) was added to collection medium and maturated for 24 hour at 38.5 °C in 5% of CO2 air. Matured oocytes were stained with acetic-orcein and determined the oocyte nuclear stage under a stereomicroscope. After in vitro maturation, 74-87% of oocytes were reached nuclear maturation (metaphase II). The maturation rates of oocytes were significantly higher at 0.1% group (87.7%) (P\u3c0.05) compared to other groups. There was no significant differences were observed between control group (74.6%), 0.5% group (79.4%), and 1% group (78.3%) (P\u3e0.05). These findings showed that supplementation of 0.1% sericin in the collection medium improved the nuclear maturation of bovine oocytes

    Livelihood Revitalization In Peatlands: Woven Crafts From Purun AS A Sustainable Business Option In Ogan Komering Ilir (Oki) Regency, South Sumatra

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    This study is conducted to better understand the potential of purun weaving as a suitable business approach that could support peatland restoration in South Sumatra. It aims to analyze the obstacles of purun weaving and its market potential as green products. This study applies qualitative and quantitative methods, including in-depth interviews and surveys. The in-depth interviews invove local business actors in Pedamaran Sub-district, Ogan Komering Ilir Regency (i.e. harvesters, weavers, and traders) and the policy-makers. Online and intercept surveys are conducted to analyze current condition and market potential of purun handicrafts, especially as the example of green products. Identified challenges include lack of market knowledge and connections, unstable supply of raw materials, lack of financial capitalization, and low product quality. The market potential for green products, however, is highly promising, as more than 80% of respondents are willing to pay a higher price for these products. Gaps between existing production system and market potential could be narrowed down by adjusting policies for existing peat swamp areas, improving access to microfinance, and implementing specific capacity building for the weavers. Moreover, suitable marketing strategies are required to support the business sustainability of purun weaving
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