Judul: Analisis Potensi dan Daya Dukung Ekologi Kawasan Wisata Pantai Tanjung Kelayang dan Tanjung Tinggi untuk Wisata Pantai, Wisata Selam dan Snorkeling di Kecamatan Sijuk, Kabupaten Belitung
Abstrak: Tanjung Kelayang and Tanjung Tinggi beach are the main coastal tourism destination in Belitung district for local, domestic and foreign country tourists. That’s why both coastal tourism objects always visited by many tourists and the condition can be saturated when special even is holded there. The saturated condition can stimulates the potential of environment and the beauty of nature degradation there become larger that will threat the sustainability of the tourism it selves. Except for the beautiful beach feature, there are also coral reef ecosystem in both of Tanjung kelayang and Tanjung Tinggi sea water which may have potential becoming marine tourism object for diving and snorkeling that have not been used as a attractive feature to attract the tourists. Therefor, it’s need to be done a research to reveal the potential of the coral reef ecosystem and it’s level of suitability as a marine tourism destination spot for diving and snorkeling. The general goal of this research are to analyse : (1) The condition and the suitability level of coral reef ecosystem that existed in Tanjung Kelayang and Tanjung Tinggi sea water to be develoved as a marine tourism objects for diving and snorkeling. (2) The Ecological carrying cappacity of beach and sand tourism activities at Tanjung Kelayang and Tanjung Tinggi beaches. (3) The ecological carrying cappacity of diving and snorkeling activities on coral reef ecosystems that existed in Tanjung Kelayang and Tanjung Tinggi sea waters. This research is conducted at coastal tourism objects Tanjung Kelayang and Tanjung Tinggi which is sited at Sijuk subdistrict, Belitung district. The methods are used are suitability tourism index and the capacity of tourism destination area to receive and accommodate the visitors. The observation for biological and physics of coral reef community data collecting used line intercept transect method, while the observation and data collecting for reef fishes community uses visual cencus method, and to collect data the extensive of coral reef area and shore area are using Global Possitioning System (GPS) tracking method. Some of physics parameter are measured on the research site. Complemented and comparising datas that are needed are collected by interviewing with the stakeholders. Analysis methods to the datas for knowing the tourism suitability is used matrix method which involved some physic and biological parameters. Analysis methods for shore ecological carrying capacity, coral reef ecosystem, fresh waters and accommodation are counted based on parameters which is collected from the measurements on the sites, then it’s used to determine the better management system descriptively. Average percentage of living coral reef cover at Tanjung Kelayang sea is 78,625%, while at Tanjung Tinggi sea is 76,8%. Those percentage values shows that coral reef ecosystem at Tanjung Kelayang and Tanjung Tinggi sea are rated as a very good category. There is only one area that is categories as very suitable for snorkeling tourism activity, it is the station 4, while the five others are categories as suitable enough. The result of data analysis shows that all the observation stations at Tanjung Kelayang and Tanjung Tinggi sea waters are suitable enough for diving activity. Tanjung Kelayang
Keyword: 

Judul: Tunda Island Marine Tourism Development Strategy with Coastal Resources Natural Resources Approach, Serang Regency, Banten.
Abstrak: Tunda Island is a small island that has accessible resources, inaccessible resources, and environmental services that are potential for development in the marine and fisheries sector. Ecosystem environmental services are utilized in tourism activities with the concept of ecotourism. The development of ecotourism has been going on for decades worldwide, especially in tropical areas with coastal assets such as corals, mangroves and beaches. Information in the form of suitability studies and strategies for the use of mangrove ecosystems, coral reefs and beaches as objects of ecotourism needs to be examined to see if natural resources have not been used effectively and optimally as tourist objects. The suitability study needs to be accompanied by a study of each regional activity carrying capacity to maintain the sustainability of natural resources. The methods used in collecting ecological data are water passes for slope beaches, transect quadrat and spot check to identify mangrove, Underwater Photo Transect (UPT) for identifying coral reefs, and Underwater Visual Census (UVC) for identifying reef fish. The collection of economic data is carried out on tourists, while the collection of social data is carried out to several stakeholders organized both at the local community level, up to the province of Banten. To formulate the Tunda Island marine tourism development plan, it used spatial analysis, carrying capacity analysis, economic analysis, and strategy analysis are used using the Hierarchy Process Analysis (AHP). The tourism potential that can be developed is the potential for beach tourism, mangrove tourism potential, snorkeling tourism potential and diving tourism potential. The carrying capacity of beach tourism is 776 people/day, mangrove tourism is 80 people/day, snorkeling tours are 562 people/day and diving tours are 587 people/day. The economic value of willingness to pay by tourists or Willingness to Pay (WTP) is IDR 21 056 198 per year. The key stakeholders of Tunda Island marine tourism are Dinas Kelautan dan Perikanan (DKP) Banten Province and Kelompok Sadar Wisata (POKDARWIS) Tunda Island. The marine tourism development strategy of Tunda Island was arranged using AHP analysis. Developing the marine tourism strategy of Tunda Island was based on ecosystem management priorities by improving the ecosystem, considering carrying capacity, conducting rehabilitation, monitoring and evaluation of ecosystems, improving infrastructure facilities, increasing capacity and empowering communities, integrated management between stakeholders and improving facilities and infrastructure.
Keyword: Carrying capacity, Suitability of tourism, Tunda Island

Judul: Karakteristik Barisan Eksak Pendek HomR(N, ) dan HomR( ,N)
Abstrak: Module merupakan generaIisasi dari ruang ve}ctor, dimana pada ruang vektor skalar-skalamya berasal dati suatu lapangan (field) sedangkan pada module skaJar-skalamya merupalam unsur-unsur dan suatu ring R dengan unsur satuan. Dari suatu grup komutatif yang unsur-unsumya dipadukan dengan unsur-unsur dart suatu ring R, maka akan mengbastlk.an yang namanya R-module. Himpunan seroua fungsi homomorfisma yang memetakan dati R-module M ke R-module N dinotasikan sebagai HomiM,N), dimana HomiM,N) juga merupakan suatu R-module.
Keyword: