1,721,094 research outputs found
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
DESAIN PEMBERIAN TUGAS BERBASIS PERBEDAAN INDIVIDU MATERI KENAMPAKAN ALAM DAN BUATAN DI INDONESIA KELAS V SDN 229 LAMUNRE KECAMATAN BELOPA
Get PDFABSTRAK
Arham Hadry, 2022 “Desain Pemberian Tugas Berbasis Perbedaan Individu
Materi Kenampakan Alam dan Buatan di Indonesia Kelas V SDN 229
Lamunre Kecamatan Belopa”. Skripsi Program Studi Pendidikan Guru
Guru Madrasah Ibtidaiyah Fakultas Tarbiyah dan Ilmu Keguruan Institut
Agama Islam Negeri Palopo. Dibimbing oleh Ibu Hj. Nursaeni dan Ibu Lilis
Suryani.
Penelitian ini dilatorbelakangi oleh adanya perbedaan-perbedaan yang ter�dapat pada diri masing-masing individual, namun menyamaratakan semua peserta
didik ketika guru mengajar atau memberikan tugas pada dasarnya kurang sesuai
dengan prinsip individualitas.
Jenis penelitian yang digunakan yaitu jenis penelitian dan pengembangan
Research & Development(R&D), model pengembangan yang digunakan dengan
menggunakan model yang dikembangkan oleh Sugiyono yang memiliki 10
tahap.Namun peneliti sampai 7 tahap dalam penelitian ini. Adapun tahap yang dil�akukan yaitu tahap potensi dan masalah, mengumpulkan informasi, desain produk,
validasi desain, revisi desain, uji coba serta revisi produk.Teknik penggumpulan
data yang digunakan dalam penelitian ini yaitu wawancara dengan guru dan siswa,
observasi, dokumentasi dan validasi.
Hasil penelitian menunjukkan bahwa respon peserta didik dalam
penggunaan desain pemberian tugas berbasis individu materi kenampakan alam di
SD Negeri 229 Lamunre Kecamatan Belopa berdasarkan Persentase dari aspek
format dan isi materi mendapat skor 87% kategori layak. Hal ini diartikan bahwa
produk media pembelajaran yang dibuat telah sesuai dengan tujuan yang akan
dicapai dan siswa juga mampu menangkap serta mudah memahami materi yang
diberikan. Respon kelayakan validasi terhadap pengembangan desain pemberian
tugas berbasis individu materi kenampkan alam di SD Negeri 229 Lamunre Keca�matan Belopa cukup baik berdasarkan hasil penelitian dilakukan oleh ahli materi,
evaluasi dan desain yang terdapat dalam produk ini dinyatakan valid dan dapat
diujikan untuk menilai kelayakannya didalam proses pembelajaran. Hasil
persentase nilai total dari 3 variabel diperoleh 87% untukahli isi materi, 82 untuk
ahli desain, dan 91 untuk ahli evaluasi dalam proses dan pemberian tugas pada saat
pembelajaran.
Kata Kunci: Desain Pemberian Tugas, Perbedaan Individu, Materi Kenampa�kan Alam
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
RpoN-dependent adaptation of burkholderia xenovorans LB400 for biodegradation and bioremediation of dibenzofuran / Noor Faizul Hadry Nordin
Get PDFAlternative sigma subunit-54 (RpoN) forms holoenzyme complex when associated with core
RNA Polymerase (RNAP) to specifically recognise and initiate transcription of specific sets of
genes in response to environmental stimuli. RpoN has important role in many major adaptive
responses in bacteria and is involved in various physiological responses such as pathogenesis,
quorum sensing and bioremediation. The main focus of this study is to gain insight into the role
of alternative sigma factor-54 (RpoN) of Burkholderia xenovorans LB400 in degradation of
dibenzofuran via biphenyl degradation pathway. Additionally, this study also investigated the
ability of Burkholderia cenocepacia J2315 in utilisation of dibenzofuran. The single knockout
mutants of rpoN genes were established using pKNOCK suicide vector series resulting two rpoN
mutants of Burkholderia xenovorans LB400; NRPLB [(rpoN1 mutant) and NRP2LB (rpoN2
mutant)] and one rpoN mutant of Burkholderia cenocepacia J2315 [NRPJ (rpoN mutant)]. The
physiological and metabolic responses analyses were conducted to differentiate the single-gene
knockout mutants from their wildtype strains; Burkholderia xenovorans LB400 and
Burkholderia cenocepacia J2315. The physiological response analysis demonstrated that the
ability of the mutants NRPLB and NRP2LB to form biofilm were not affected with inactivation
of rpoN genes. However, the biofilm formation in NRPJ was reduced indicating the involvement
of rpoN gene in formation of biofilm in Burkholderia cenocepacia J2315. Inactivation of rpoN2
gene does not affect motility of NRP2LB (rpoN2 mutant). However, inactivation of rpoN1 gene
significantly reduced motility of NRPLB (rpoN1 mutant). Metabolic response analysis shows
that rpoN genes play an important role in utilisation of nitrogenous compound even though the
effects are depending on the species of the nitrogen. The altered nitrogen utilisation profile when
using ammonium, histidine, asparagines, nitrate, glutamine and alanine as sole nitrogen source in single-gene knockout mutants indicate that rpoN genes of Burkholderia xenovorans LB400 and
Burkholderia cenocepacia J2315 are active and functional for nitrogen utilisation. The ability of
Burkholderia xenovorans LB400 and Burkholderia cenocepacia J2315 in degrading orthosubstituted PCBs such as dibenzofuran was also determined. Degradation studies of
dibenzofuran showed significant differences between wildtype Burkholderia xenovorans LB400,
Burkholderia cenocepacia J2315 and their single-gene knockout mutants. Degradation rate was
found higher in NRP2LB (rpoN2 mutant) compared to wildtype Burkholderia xenovorans
LB400 but reduced significantly in NRPLB (rpoN1 mutant). This result was supported by gene
expression analysis where RpoN-dependent bphA gene that encodes for biphenyl dioxygenase
was highly expressed in NRP2LB (rpoN2 mutant) thus enhanced the degradation of
dibenzofuran via biphenyl degradation pathway. This result indicates the important role of rpoN1
gene in Burkholderia xenovorans LB400 in degradation of dibenzofuran. Simple phytotoxicity
assay showed that byproducts from degradation of dibenzofuran by wildtype Burkholderia
xenovorans, NRPLB (rpoN1 mutant) and NRP2LB (rpoN2 mutant) is less toxic towards the test
species compared to dibenzofuran. Furthermore, the degradation byproducts from NRP2LB
(rpoN2 mutant) was able to enhanced the growth of Sorghum saccharatum compared to control
(water)
Dibenzofuran: a model compound for dioxins and furans biodegradation
No full textDibenzofuran: A Model Compound for Dioxins and Furans Biodegradation" provides a comprehensive and in-depth analysis of the various aspects of dioxin and furan pollution and their biodegradation using dibenzofuran as a model compound. It combines scientific research, case studies, and innovative approaches, making it an essential resource for researchers, scientists, environmental professionals, and policymakers working in the field of environmental remediation and pollution control
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
