130,801 research outputs found
A Textual and Archival Reexamination of Lucy Mack Smith’s History
No full textPrevious scholarly treatment of the history of Lucy Mack Smith has explained the work of Martha and Howard Coray in editing and compiling it. In “A Textual and Archival Reexamination of Lucy Mack Smith’s History,” Sharalyn D. Howcroft applies the archival principle of fonds to the history by reconstructing the original order of the rough manuscript inscribed by Martha Coray, shedding light on the history’s composition methodology and on its extant and non-extant manuscripts. Handwriting in the rough manuscript indicates Martha inscribed roughly half of the history before her husband Howard began editing it. The lack of textual indicators for dictated text suggest the rough manuscript is largely Martha’s composition, probably based on notes of her interviews with Smith. Howcroft also shows that the rough manuscript and extant fair copy are likely the amalgamation of two separate manuscripts, providing evidence that the history is a work of social publication.</p
Marxism and Feminism in IS research: the case of gender and teleworking, in D Howcroft and E Trauth (eds)
No full textMarxism and Feminism in IS research: the case of gender and teleworking, in D Howcroft and E Trauth (eds)
No full textInduksi Poliploidi Menggunakan Kolkisin Pada Tanaman Anggrek Dendrobium Wulaiense Howcroft X D. Lithocola D.L.Jones & M.A.Clem Secara In Vivo
No full textAnggrek Dendrobium ialah tanaman hias yang mempunyai nilai estetika
tinggi dan termasuk ke dalam famili Orchidaceae yang banyak tersebar di dunia.
Anggrek banyak diminati karena memiliki berbagai macam karakteristik unik
sehingga menimbulkan variasi baru dan memiliki daya tarik tersendiri. Namun
semakin lama beberapa spesies anggrek Dendrobium semakin jarang bahkan
terancam punah sehingga perlu dilakukan perbanyakan dan perbaikan tanaman
anggrek untuk melestarikannya (Stocker et al., 2000). Poliploidi merupakan salah
satu cara yang dapat digunakan dalam memperbaiki karakter tanaman. Penelitian
ini bertujuan untuk mengetahui konsentrasi kolkisin yang tepat yang dapat
menghasilkan poliploidi pada anggrek Dendrobium wulaiense Howcroft x
Dendrobium lithocola D.L.Jones & M.A.Clem secara in vivo. Hipotesis dari
penelitian ini ialah induksi kolkisin pada konsentrasi tertentu dapat menghasilkan
poliploidi pada anggrek Dendrobium wulaiense Howcroft x Dendrobium lithocola
D.L.Jones & M.A.Clem secara in vivo serta dapat menyebabkan adanya
perubahan pada karakter morfologi, anatomi maupun sitologi.
Pelaksanaan penelitian dilakukan di Soerjanto Orchid Batu,
Laboratorium Bioteknologi dan Laboratorium Pemuliaan Tanaman Jurusan
Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya. Penelitian
dilaksanakan pada bulan April hingga Juli 2019. Bahan tanam yang digunakan
dalam penelitian ini adalah bibit anggrek Dendrobium wulaiense Howcroft x
Dendrobium lithocola D.L.Jones & M.A.Clem yang diperbanyak melalui biji dari
hasil persilangan. Umur bibit yang digunakan dalam penelitian ini adalah bibit
anggrek yang telah diaklimatisasi selama tiga bulan. Bahan lain yang digunakan
adalah akar bibit tanaman anggrek Dendrobium wulaiense Howcroft x
Dendrobium lithocola D.L.Jones & M.A.Clem, kolkisin, hidroxyquinolin,
aquades, asam asetat, HCl 1 N, aceto orcein, spirtus, tisu, cat kuku bening, kertas
label. Alat yang digunakan dalam penelitian ini adalah Pantone Color Charts,
penggaris, jangka sorong, tray, flexibel pot ukuran 1,5 inch, botol, spuit injeksi 1
ml, plastik, tube, pipet, pinset, kaca preparat, cover glass, gelas arloji, silet,
bunsen, waterbath, mikroskop Olympus, alat tulis, dan kamera.
Rancangan yang digunakan dalam penelitian ialah Rancangan Acak
Kelompok (RAK) yang terdiri dari enam perlakuan konsentrasi dengan empat kali
ulangan yaitu K0 (Konsentrasi 0 ppm (kontrol)), K1 (Konsentrasi 1000 ppm), K2
(Konsentrasi 2000 ppm), K3 (Konsentrasi 3000 ppm), K4 (Konsentrasi 4000
ppm), dan K5 (Konsentrasi 5000 ppm). Variabel pengamatan yang digunakan
terdiri dari pengamatan morfologi (umur muncul akar baru (HSP), jumlah akar
baru, panjang akar baru, umur muncul daun baru (HSP), jumlah daun baru,
panjang daun baru, lebar daun baru, tebal daun baru, warna daun baru, panjang
tanaman), pengamatan anatomi (rata-rata jumlah stomata, kerapatan stomata,
panjang stomata, lebar stomata), dan pengamatan sitologi (jumlah kromosom).
ii
Hasil penelitian menggunakan kolkisin dengan beberapa tingkat
konsentrasi pada anggrek Dendrobium wulaiense Howcroft X Dendrobium
lithocola D.L.Jones & M.A.Clem. dapat menyebabkan perubahan karakter
morfologi, anatomi, dan sitologi. Variabel umur muncul daun baru, jumlah
stomata, dan kerapatan stomata memberikan hasil yang berbeda nyata, setelah
dilakukan uji lanjut menggunakan BNT 5%. Konsentrasi kolkisin yang dapat
menginduksi anggrek Dendrobium wulaiense Howcroft X Dendrobium lithocola
D.L.Jones & M.A.Clem. menjadi tanaman tetraploid dengan jumlah kromosom 76
ialah konsentrasi 3000 ppm dan 4000 pp
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Introduction
No full textMark Ashurst-McGee, Robin Scott Jensen, and Sharalyn D. Howcroft introduce Foundational Texts of Mormonism: Examining Major Early Sources by noting the rich documentary record of the early history of Mormonism and the Church of Jesus Christ of Latter-day Saints. Among these the documents from the founding era under Joseph Smith are several major sources to which historians continually turn for information. However, as the authors explain, this is often with little appreciation for the complexity of the circumstances under which these documents were produced. The volume provides several examples of how understanding the complexity of documentary production helps historians to use these sources more critically. The authors individually introduce the chapters of the book.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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