Perbandingan Kemampuan Berpikir Tingkat Tinggi antara Penerapan Model Discovery Learning dengan Memanfaatkan Potensi Ekosistem Pesisir dan Pembelajaran Konvensional pada Siswa Kelas X SMA N 1 Tanjungsari

The purpose of the research was to find out the difference of higher order thinking skills of grade X students after being treated with discovery learning model with employing seashore ecosystem and conventional learning.The research was a quasi experiment with postest only nonequivalent control group design. The population of the research was all student of grade X of SMA N I Tanjungsari, and sample was selected through cluster sampling. Data was collected using test and non-test method. Test method is high order thinking essays, which consisted of analytical thinking skills (C4), evaluate thinking skills (C5), and creative thinking skills (C6). Non-test method was observation and documentation. Hypothesis test used the t-test with SPSS 16 version.The conclusion of the research is there was a difference of higher order thinking skills between application of discovery learning combined with seashore ecosystem and conventional learning of grade X students of SMA N I Tanjungsari. Students of grade X performed best on evaluate thinking skills

Profil Keterampilan Argumentasi Ilmiah Mahasiswa Pendidikan Biologi FKIP UNS Pada Mata Kuliah Anatomi Tumbuhan

Lemahnya argumentasi ilmiah mahasiswa dalam pembelajaran telah banyak menjadi perhatian, terutama dalam hal mengevaluasi dan mengkonstrak permasalahan dan solusinya. Penelitian ini bertujuan untuk mengetahui bagaimana profil keterampilan argumentasi ilmiah mahasiswa pada mata kuliah Anatomi Tumbuhan. Penelitian ini merupakan penelitian deskriptif untuk mendapatkan gambaran keterampilan argumentasi mahasiswa semester 3 di Prodi Pendidikan Biologi FKIP UNS melalui tugas tertulis yang diberikan. Penilaian argumentasi mahasiswa mengacu pada Toulmin's Argumentation Pattern (TAP) yang memuat komponen claim, evidence, reasoning dan rebuttal. Hasil penelitian menunjukkan bahwa kemampuan argumentasi ilmiah mahasiswa Pendidikan Biologi FKIP UNS masih tergolong rendah, dibuktikan dengan skor rerata claim sebesar 52%, evidence sebesar 42%, reasoning sebesar 15% dan rebuttal sebesar 10%. Temuan ini akan dijadikan dasar bagi penelitian lanjutan mengenai model dan strategi pembelajaran inovatif yang dapat meningkatkan kemampuan argumentasi dan penalaran ilmiah terutama bagi calon guru biologi

Geospatial variability of soil and climate on performance of rubber (Hevea brasiliensis Muell. Arg.) in traditional region of India

Natural rubber is grown in traditional region of India in varied soil and climate conditions. Earlier efforts to relate soil-site condition on performance of rubber were based on observation of few locations. Geospatial analysis of soil and climate variation helps to delineate constraint areas for site specific management. Kanyakumari district of Tamil Nadu and Kasaragod district of Kerala having contrasting soil and climate condition in traditional region of rubber cultivation were selected to study the effect of soil and climate on rubber performance. Soil OC, available P and K in Kanyakumari was in medium range whereas in Kasaragod soil OC was in high range, available P and K in low range. In Kanyakumari district major rubber growing area was under low elevation (0-100 m) and slope below 5-10 per cent compared to low to medium(100-200 m) elevation and slope above 5-10 per cent in Kasaragod. Annual rainfall distributed uniformly in Kanyakumari compared to unimodal rainfall distribution observed in Kasaragod. As a result Moisture Adequacy Index (MAI) in Kanyakumari during December to March was good to poor whereas in Kasaragod it was poor to very poor. Length of growing period was more in Kanyakumari compared to Kasaragod as a result performance of rubber with respect to growth and yield was better in Kanyakumari than Kasaragod. Factor analysis showed that soil health (OC) and cation (Ca and Mg) factors showed significant role in performance of rubber in Kanyakumari, whereas in Kasaragod only topographic factors i.e., elevation showed significant role in rubber performance

Geospatial variability of soil and climate on performance of rubber (Hevea brasiliensis Muell. Arg.) in traditional region of India

Natural rubber is grown in traditional region of India in varied soil and climate conditions. Earlier efforts to relate soil-site condition on performance of rubber were based on observation of few locations. Geospatial analysis of soil and climate variation helps to delineate constraint areas for site specific management. Kanyakumari district of Tamil Nadu and Kasaragod district of Kerala having contrasting soil and climate condition in traditional region of rubber cultivation were selected to study the effect of soil and climate on rubber performance. Soil OC, available P and K in Kanyakumari was in medium range whereas in Kasaragod soil OC was in high range, available P and K in low range. In Kanyakumari district major rubber growing area was under low elevation (0-100 m) and slope below 5-10 per cent compared to low to medium(100-200 m) elevation and slope above 5-10 per cent in Kasaragod. Annual rainfall distributed uniformly in Kanyakumari compared to unimodal rainfall distribution observed in Kasaragod. As a result Moisture Adequacy Index (MAI) in Kanyakumari during December to March was good to poor whereas in Kasaragod it was poor to very poor. Length of growing period was more in Kanyakumari compared to Kasaragod as a result performance of rubber with respect to growth and yield was better in Kanyakumari than Kasaragod. Factor analysis showed that soil health (OC) and cation (Ca and Mg) factors showed significant role in performance of rubber in Kanyakumari, whereas in Kasaragod only topographic factors i.e., elevation showed significant role in rubber performance

Enzymes of Ammonia Assimilation in Fungi: An Overview

Nitrogen is a major element found in many of the simple compounds and nearly all of the complex macromolecules of living cells. Nitrogen can be obtained either from organic source or inorganic source but ultimately it is converted into ammonia and glutamate. Ammonia is the preferred   source of nitrogen. The assimilation of ammonia into glutamate and glutamine plays a central role in the nitrogen metabolism of all organisms. Glutamate dehydrogenase (GDH), Glutamate synthase (GOGAT), and glutamine synthetase (GS) are the key enzymes involved in ammonia assimilation. The specific steps in these pathways vary with the organism, but in virtually all cells glutamate (85%) and glutamine (15%) serve as the nitrogen donors for biosynthetic reactions. In fungi lot of work has been carried out on these enzymes from lower fungi to the higher ones and there are differences in the role played by theses enzymes. Thus knowledge of the formation of glutamate and glutamine from various nitrogen sources is crucial to our understanding of cell growth.  In this review an overall view of the elements present in ammonia assimilation especially in fungi will be carried out along with recent developments and concepts