1,721,107 research outputs found
Influences of forest gaps on soil physico-chemical and biological properties in an oriental beech (Fagus orientalis L.) stand of Hyrcanian forest, north of Iran
No full textUnderstanding the effects of silvicultural practices including single-tree selection on soil properties is essential for forest management in temperate broadleaved beech forests. Changes in physico-chemical and biological soil properties in 15 harvest-created gaps under single-tree selection and the adjacent closed canopies, with five replications for each, were studied 6 years after gap creation in an oriental beech (Fagus orientalis L.) stand of the Hyrcanian forest. Gaps were classified into three size classes: small (85-130 m2), medium (131-175 m2) and large (176-300 m2). Soil cores were collected at the center and at the edge of gaps, and under the adjacent closed canopy. Results indicated that gap size significantly affected soil texture and bulk density, whereas soil organic carbon (SOC), total nitrogen and pH showed a significant gradient from the center to the edge of gap independently form their size. SOC and total nitrogen at the center of gaps were also significantly lower than closed-canopy, in particular for the medium-gap; contrastingly, the bulk density with the highest mean value was found at the center of the large-gap. Gap size had no significant influence on soil microbial biomass. These results highlighted that similar conditions in terms of many soil properties were still present among gaps and adjacent closed-canopy stands six years after logging, though canopy openness triggered a reduction in carbon and nitrogen availability along with the related microbial activity at the center of gaps, independently from their size. Therefore, if aimed at preserving an uneven aged structure along with soil quality in temperate broadleaved deciduous forest as the oriental beech stands in the Hyrcanian region, single-tree selection practice for harvesting trees can be recommended as sustainable forest management type
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Deskripsi Kualitas Kelengkapan Perangkat Pembelajaran Dan Kualitas Proses Pembelajaran Pendidikan Agama Islam pada SMPN di Kabupaten Hulu Sungai Selatan
Get PDFAbrari Syauqi : Deskripsi Kualitas Kelengkapan Perangkat Pembelajaran dan Kualitas Proses Pembelajaran Pendidikan Agama Islam pada SMPN di Kabupaten Hulu Sungai Selatan di bawah bimbingan I : Prof. Dr. H. Mahyuddin Barni, M. Ag dan II : Drs. Ahdi Makmur, M. Ag, Ph.D, pada Pascasarjana IAIN Antasari Banjarmasin, (Tahun 2017)
Kata Kunci : Deskripsi, Kualitas Kelengkapan Perangkat Pembelajarn, Kualitas Proses Pembelajaran, Pendidikan Agama Islam
Dalam penyiapan perangkat pembelajaran terdapat komponen-komponen dan prinsip-prinsip penyusunan perangkat. Terkadang prinsip-prinsip tersebut tidak optimal penyampaianya kepada peserta didik. Selain itu, pengimplementasian proses pembelajaran juga diharapkan guru memiliki kemampuan-kemampuan yang optimal dalam hal teknis pengelolaan perencanaan pembelajaran. Adanya indikasi pengelolaan dan pelaksanaan proses pembelajaran yang belum optimal ini, menyebabkan peneliti merasa tertarik untuk meneliti tentang pelaksanaan pembelajaran yang lebih dahulu diawali dengan perencanaan pembelajaran yang merupakan bagian dari perangkat pembelajaran.
Penelitian akan dilakukan pada Sekolah Menengah Pertama Negeri (SMPN) yang ditunjuk menjadi contoh pelaksanaan Kurikulum 2013 di Kabupaten Hulu Sungai Selatan yakni 3 (tiga) lokasi sekolah. Pertama, SMPN 1 Kandangan, kedua, SMPN 2 Angkinang, ketiga, SMPN 4 Kandangan. Tujuan penelitian adalah untuk memberikan gambaran bagaimana kualitas kelengkapan perangkat guru dan kualitas proses pembelajaran PAI SMPN di Kabupaten Hulu Sungai Selatan.
Jenis penelitian yang dilakukan adalah penelitian lapangan (field research) dan penelitian ini bersifat kualitatif. Dalam pengumpulan data digunakan teknik wawancara, observasi dan dokumentasi.
Hasil temuan penelitian kualitas kelengkapan perangkat pembelajaran guru PAI SMPN 1 Kandangan, SMPN 4 Kandangan dan 2 Ankinang dengan skor 91,07 adalah sangat baik. Kualitas proses pembelajaran guru PAI pada sekolah yang diteliti dengan skor 92,39 yakni amat baik atau sangat berkualitas. Faktor yang mempengaruhi kualitas perangkat pembelajaran adalah kemampuan penguasaan guru PAI dalam kompetensi paedagogik dan kompetensi profesional. Faktor yang mempengaruhi proses pembelajaran yakni penguasaan guru PAI terhadap rencana pelaksanaan pembelajaran, suasana belajar, fasilitas belajar dan sumber belajar yang tersedia
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Solitary fibrous tumour (SFT) of the residual tongue, post partial glossectomy for carcinoma
No full text
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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