Ornamental Stones of Piemonte (NW Italy): an updated geo-lithological map

The 'Ornamental Stones of Piemonte Region' geo-lithological map at 1:250,000 scale aims at reviewing the ornamental stone heritage of Piemonte at the regional scale. The map derives from a thorough revision of the available literature, integrated with some unpublished original data. The map shows the location of the main quarries of ornamental stones of the region, selected on the basis of their historical, cultural and architectonic relevance. A geo-lithological basemap was produced, deriving it from a basic Geological Map of Piemonte, available at the same scale. The large varieties of lithotypes of Piemonte have been resumed, in the new map, into 21 classes, which all the ornamental stones have been assigned to. The Main Map is enriched by some significant examples of using the ornamental stones in historical buildings, and it is supported by a supplementary data base containing essential information about the quarry sites and the quarried material

Black pine (Pinus nigra) barks: A critical evaluation of some sampling and analysis parameters for mercury biomonitoring purposes

Abstract Tree barks are increasingly used as biomonitors of airborne pollutants. However, many authors stress the poor comparability of the results achieved in different studies. This drawback is mainly caused by a poor understanding of the critical sampling parameters to be considered. To minimize the biases that could be introduced during sampling, in this study the barks of Pinus nigra J.F. Arnold from thirteen sites were investigated in the abandoned Mt. Amiata mercury (Hg) mining district (Southern Tuscany, Italy) and surroundings. The influence of some sampling and analyzing parameters on Hg content was critically assessed. At each site, a total of eight bark samples were taken from a single tree at two heights (70 cm and 150 cm from soil) and at four different sides of the trunk, corresponding to the four cardinal directions; a composite soil sample was also collected. Mercury contents in barks range from 0.1 to 28.8 mg/kg, and are correlated with soil Hg contents (1–480 mg/kg), indicating that barks record both gaseous Hg concentrations in air, and wind-transported Hg-bearing particulate. For each tree, samples at 70 cm and 150 cm show Hg contents of the same order of magnitude, even if values for 150 cm are slightly less dispersed, possibly because barks at 70 cm are more influenced by random soil particles. There is no statistically significant dependence of Hg content on direction and tree age. Simulated rain events cause a negligible loss of Hg from barks. Results suggest that a convenient sampling practice for Pinus nigra is to collect a bark slice (typically 1–2 mm) within the outermost 1.5 cm layer

The Effectiveness of Matrix Interventions in Reducing the Difficulty in Cognitive Emotion Regulation and Craving in Methamphetamine-Dependent Patients

Background:  Craving is a persistent factor in addictive behaviors. The aim of study was to investigate the effectiveness of matrix interventions in reducing the difficulty in cognitive emotion regulation and craving in methamphetamine-dependent patients.Methods:  The research method was experimental and the research design was pre and posttest with the control group. The statistical population of the study consisted of all methamphetamine-dependent patients who visited the Golestan hospital of Ahvaz in 2019. Among them, 40 ones were selected by a purposive sampling method and were randomly classified into experimental and control groups (n = 20 per group). The Cognitive Emotion Regulation and Craving Questionnaires were used for data collection. The experimental group received the matrix program (24 fifty-minute sessions), but the control group did not receive any intervention. Data were analyzed by the analysis of covariance (ANCOVA). Significant level was set at 0.05.Results: The results indicated that the matrix program was effective in reducing the difficulty in cognitive emotion regulation (F = 13.483, Pvalue < 0.001). The research results also indicated that the matrix program was effective in reducing craving in methamphetaminedependent patients (F = 60.716, Pvalue < 0.001).Conclusions: According to results, the therapy could be used to reduce the difficulty in cognitive emotion regulation and craving in methamphetamine-dependent patients. Keywords: Matrix model, Cognitive emotion regulation, Craving, Methamphetamine

PENERAPAN MODEL PEMBELAJARAN MATEMATIKA KNISLEY UNTUK MENINGKATAN KEMAMPUAN PEMAHAMAN KONSEP MATEMATIKA SISWA SM A

Matematika merupakan mata pelajaran yang didalamnya memuat fakta, operasi, konsep dan prinsip. Sehingga untuk mempelajari matematika dibutuhkan kemampuan pemahaman konsep yang baik. Namun kenyataannya kemampuan pemahaman konsep siswa masih rendah, hal ini dibuktikan masih banyaknya siswa yang tidak bisa menyelesaikan soal matematika terutama soal yang berkaitan dengan pemahaman konsep. Salah satu alternatif pembelajaran yang dapat mengakomodasi kemampuan pemahaman konsep matematika adalah model pembelajaran matematika knisley . Tujuan penelitian ini adalah 1) u ntuk m engetahui apakah peningkatan kemampuan pemahaman konsep matematika siswa yang memperoleh model pembelajaran matematika knisley lebih baik daripada siswa yang memperoleh pembelajaran konvensional ; 2) u ntuk mengetahui sikap siswa terhadap pembelajaran matematika dengan model pembelajaran matematika knisley ; 3) u ntuk mengetahui terdapat korelasi antara kemampuan pemahaman konsep matematika dengan sikap siswa . Penelitian ini menggunakan metode eksperi men. Populasi penelitian ini adalah semua siswa semua siswa Kelas X SM A Nusantara Bandung tahun ajaran 2015/2016 dan sampel diambil sebanyak dua kelas yang dipilih secara acak menurut kelas. Instrumen penelitian yang digunakan berupa tes tipe uraian soal - soal kemampuan pem ahaman konsep matemati ka dan angket skala sikap. Analisis data dilakukan dengan uji statistik dengan menggunakan program SPSS 18 for windows . Berdasarkan analisis data hasil penelitian, diperoleh kesimpulan : 1) k emampuan pemahaman konsep matemati ka siswa yang mendapatkan model pembelajaran matematika knisley lebih baik daripada siswa yang mendapatkan model pembelajaran konvensional ; 2) s iswa bersikap positif terhadap pembelajaran matematika dengan model pembelajaran matema tika knisley ; 3) t erdapat korelasi antara kemampuan pemahaman konsep matemati ka dengan sikap siswa terhadap pembelajaran matematika yang menggunakan model pembelajaran matematika knisley . Kata kunci : Pembelajaran Matematika Knisley , Pe mahaman Konsep Matemati ka

Dimensi Rasa Ingin Tahu Siswa Melalui Pendekatan Saintifik Berbantuan Alat Perga Penjernihan Air

Tujuan penelitian ini adalah untuk mengetahui dimensi Rasa Ingin Tahu siswa melalui pendekatan saintifik berbantuan alat peraga penjernihan air. Rasa ingin tahu merupakan salah satu dimensi dari sikap ilmiah yang terbagi menjadi beberapa indikator, diantaranya yaitu: antusias mencari jawaban, perhatian pada obyek yang diamati, antusias pada proyek sains dan menanyakan setiap langkah kegiatan. Jenis penelitian yang digunakan yaitu penelitian mixed method yang menggunakan metode pengumpulan data secara kualitatif dan kuantitatif. Instrumen dalam penelitian ini yaitu tes, lembar observasi dan lembar angket. Kesimpulan yang diperoleh yaitu pembelajaran IPA melalui pendekatan saintifik berbantuan alat peraga penjernihan air dapat diketahui sikap ilmiah pada dimensi rasa ingin tahu siswa meningkat