Pengaruh Biaya Perjalanan, Jarak, Dan Persepsi Kualitas Terhadap Kunjungan Wisata Di Kawasan Cagar Budaya Nasional Muarajambi

Penelitian ini bertujuan untuk mengetahui faktor-faktor yang diduga mempengaruhi jumlah kunjungan individu ke Kawasan Cagar Budaya Nasional (KCBN) Muarajambi, yakni biaya perjalanan, jarak, dan persepsi kualitas cagar budaya. Data yang digunakan adalah data primer yang berasal dari 80 orang pengunjung KCBN Muarajambi. Data tersebut dianalisis menggunakan metode analisis regresi linear berganda. Hasil penelitian menunjukkan bahwa variabel biaya perjalanan, jarak, dan persepsi kualitas secara simultan (bersama-sama) memiliki pengaruh terhadap jumlah kunjungan individu ke KCBN Muarajambi. Namun, pengaruh yang paling signifikan terdapat pada variabel jarak dan persepsi kualitas

Potential ecological and human health risks of heavy metals in surface soils associated with iron ore mining in Pahang, Malaysia

The composition of heavy metals (and metalloid) in surface soils of iron ore mine-impacted areas has been evaluated of their potential ecological and human health risks. The mining areas included seven selected locations in the vicinity of active and abandoned iron ore-mining sites in Pahang, Malaysia. Heavy metals such as Fe, Mn, Cu, Zn, Co, Pb, Cr, Ni, and Cd and metalloid As were present in the mining soils of the studied area, while Cu was found exceeding the soil guideline value at all sampling locations. However, the assessment of the potential ecological risk index (RI) indicated low ecological risk (RI between 44 and 128) with respect to Cd, Pb, Cu, As, Zn, Co, and Ni in the surface soils. Contributions of potential ecological risk (Eri)by metal elements to the total potential ecological RI were evident for Cd, As, Pb, and Cu. Contribution of Cu appears to be consistently greater in the abandoned mining area compared to active iron ore-mining site. For non-carcinogenic risk, no significant potential health risk was found to both children and adults as the hazard indices (HIs) were all below than 1. The lifetime cancer risk (LCR) indicated that As has greater potential carcinogenic risk compared to other metals that may induce carcinogenic effects such as Pb, Cr, and Cd, while the LCR of As for children fell within tolerable range for regulatory purposes. Irrespective of carcinogenic or non-carcinogenic risk, greater potential health risk was found among children (by an order of magnitude higher for most metals) compared to adults. The hazard quotient (HQ) and cancer risk indicated that the pathways for the risk to occur were found to be in the order of ingestion > dermal > inhalation. Overall, findings showed that some metals and metalloid were still present at comparable concentrations even long after cessation of the iron ore-mining activities

Pengaruh Model Pembelajaran Kooperatif Think Pair Share terhadap Hasil Belajar Geografi pada Materi Pelestarian Lingkungan Hidup Siswa Kelas XI MAN Malang II Batu

ABSTRAK   Marisandi, Diami. 2013. Pengaruh Model Pembelajaran Kooperatif Think Pair Share terhadap Hasil Belajar Geografi pada Materi Pelestarian Lingkungan Hidup Siswa Kelas XI MAN Malang II Batu. Skripsi, Jurusan Geografi, Fakultas Ilmu Sosial, Universitas Negeri Malang. Pembimbing: (I) Drs. Dwiyono Hari Utomo, M.Pd. M.Si, (II) Ardyanto Tanjung, S.Pd. M.Pd.   Kata kunci: Think Pair Share, Hasil Belajar Geografi, Pelestarian Lingkungan Hidup.   Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kooperatif Think Pair Share terhadap hasil belajar geografi pada materi pelestarian lingkungan hidup siswa kelas XI MAN Malang II Batu. Penelitian ini merupakan penelitian eksperimen semu dengan desain penelitian pretest-posttest control group design. Subjek penelitian yaitu kelas XI IPS 3 sebagai kelas eksperimen dan kelas XI IPS 1 sebagai kelas kontrol. Instrumen penelitian berupa soal tes esai untuk pretest dan posttest. Teknik analisis yang digunakan adalah uji-t 2 sampel tidak berpasangan dengan menggunakan program SPSS 16.0 for Windows. Hasil penelitian menunjukkan bahwa ada pengaruh signifikan dari hasil belajar dengan menggunakan model pembelajaran Think Pair Share dengan siswa yang hanya belajar dengan model pembelajaran konvensional. Rata-rata hasil belajar siswa kelas eksperimen adalah 30,6 sedangkan rata-rata hasil belajar siswa kelas kontrol adalah 20,71 dengan  signifikansi sebesar 0,00