178,882 research outputs found
O uso do cadastro técnico multifinalitário na avaliação de impactos ambientais e na gestão ambiental na mineração do carvão: estudo de caso Mina do Trevo, Rio Albina, Siderópolis SC /
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.O objetivo desta pesquisa é a análise e avaliação ambiental de uma área onde vem ocorrendo mineração de carvão no subsolo, denominada "Mina do Trevo" e outra onde houve mineração a céu aberto, localizada na comunidade de Rio Albina, município de Siderópolis, S.C. Propõe-se, com o uso do Cadastro Técnico Multifinalitário, apresentar o modelo de Gestão Ambiental para a atividade de mineração e recuperação de áreas degradadas. Apresentam-se também sugestões ao Poder Público, de uma legislação ambiental a nível de município, bem como, um programa de educação ambiental, o seguro de responsabilidade civil - seguro ambiental para atividades de risco; técnicas de controle ambiental; e o monitoramento ambiental para atividades superficiais e subterrâneas, com o envolvimento comunitário, na busca de soluções para os conflitos decorrentes do uso dos recursos naturais. O modelo apresentado é aplicável em outras atividades de mineração na região Sul de Santa Catarina, enquadrada como 14a Área Crítica Nacional para fins de controle Ambiental, de acordo com o Decreto Presidencial no. 85.206 de 25/09/1980
Mina de Reyes en Guanajuato
No full textI.O. A la derecha del negativo tiene una incripción que dice: "468", en la esquina derecha dice "Scon". La guarda dice: "C. B. Waite, Los Reyes, Guanajuato. Mina-955. 121". Número de inventario "122637". En las busquedas no se encontró un poblado con éste nombre, pero si la Mina de Los Reyes, en el estado de Guanajuato
The modernist angel: Art at the Limits of the Human in D. H. Lawrence, H. D. and Mina Loy
No full textPhDThe subject of this thesis is a figure that might provisionally be called the *modemist
angel'. Focusing on modernist literature, and more particularly on the work of D. H.
Lawrence, H. D. and Mina Loy, it aims to isolate from the many angels found in all periods
and all types of art a historically specific and intellectually coherent paradigm: an angel of
and for its modernist times. A figure of precisely this type could be said to exist in the
form of Walter Benjamin's 'angel of history'. Critics who address the question of the
modern angel in texts by Franz Kafka and Rainer Maria Rilke often do so in conjunction
with the problem posed by the angel of history. Beginning with a chapter on Benjamin,
this thesis nevertheless follows a different trajectory. Over five chapters, it explores a
modernist landscape formed not only by Lawrence, H. D. and Loy, but also by European
and American writers such as A. R. Orage, Allen Upward, Ezra Pound, Wallace Stevens,
Havelock Ellis, Edward Carpenter, Sigmund Freud and Friedrich Nietzsche. Although the
angel that emerges from this investigation might, in some respects, be said to anticipate
Benjamin's later version, this figure is also very different, standing for a project that is
distinctively, and recognisably, modernist in nature. He/she (the sex of the modernist
angel is often open to question) represents an attempt to reconcile the divine
responsibilities of the artist with the material and gendered conditions of being,
specifically of being human, in the modem world. This thesis looks again at the clash of
intellectual paradigms in the early-twentieth century - notably, the confrontation of the
Romantic view of art as a superhuman or sacred undertaking with the psychoanalytical or
evolutionary idea that all human endeavour is underpinned by sub-human motives - and
suggests the angel as a new and instructive figure through which to think the perilous
limits between the human and the divine in modernist literature
Institutions, Trade, and Social Cohesion in Fragile States
No full textThis paper examines the contribution of institutions, social cohesion, and trade to development (per-capita income) with emphasis on fragile states in Africa. Results from GMM estimations suggest that political institutions, openness to trade, and social cohesion affect growth in fragile states via direct and indirect mechanisms. The results indicate that, beyond a certain level, openness to trade may actually be harmful to economic performance in fragile states, particularly in countries with high export concentration. Improvements in institutional quality, or more specifically in democratization, also may be harmful in the short run. On the other hand, social cohesion has a positive effect once a threshold level is reached. The results associated with the effects of political institutions and openness to trade seem to suggest the possibility of a ‘catch-22’, at least in the short run. If a fragile state tries to improve its political institutions or its openness to trade it may wind up with lower per-capita income. According to the formula used to allocate World Bank-IDA funds get more money, such country would get more aid. However, while obtaining more aid may be a good outcome lower income implies more poverty (assuming no changes in income distribution). Thus, aid may not lead to significant poverty reduction.fragile states, aid effectiveness, institutions, social cohesion
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
A Letter of Albertus C. Van Raalte to His Daughter, Mina Oggel
No full textA letter of Albertus C. Van Raalte to his daughter, Mina Oggel, in which he described his experiences in Dixie but he does not say why he is in the South or in Chattanooga. The southern women need Mother to teach them housekeeping.... He admonishes his daughter to be a good mother and gives her much advice on spiritual matters.https://digitalcommons.hope.edu/vrp_1860s/1451/thumbnail.jp
Effect of organic-complexed superphosphates on microbial biomass and microbial activity of soil
No full textOrganic Complexed Super-Phosphates (CSP), is formed by a Humic Acid-calcium monophosphate complex. The aim of this study was to determine whether two CSPs, characterized by different Humic Acid concentrations, added to a calcareous soil at an agronomic dose, were able to maintain the phosphorus (P) in a soluble form longer than the Superphosphate fertilizer. Another important goal was to verify if CSP could positively influence soil microbial biomass and some soil microbiological activities. CSPs were capable of keeping a large portion of P in a soluble form under different soil water conditions. In particular, the CSP with the highest organic C content, was the most effective product, capable of maintaining, in a available form, the 73% of the initially added P at the end of the experiment.
In addition it was the most effective in increasing C-CO2 soil emission, microbial biomass carbon (C) and nitrogen (N), fluoresceine diacetate hydrolysis and activities of alkaline phosphatase, -glucosidase and urease. The addition of CSPs to the soil probably produced a priming effect, increasing several times C-CO2 release by the treated soil. The significant correlation (p< 0.05) between C-CO2 emission and the amount of C added to soil by CSP, suggests that the added humic acid acted as trigger molecules
Perbandingan Pendapatan Usahatani Mina Padi (Padi – Lele) dan Non Mina Padi (Studi Kasus : Desa Sidodadi Ramunia, Kecamatan Beringin, Kabupaten Deli Serdang)
No full textUsahatani Mina Padi dan Non Mina Padi adalah suatu budidaya yang
dilakukan usaha dan mata pencaharian petani sawah. Mina Padi adalah budidaya
terpadu yang dapat meningkatkan produktivitas lahan sawah, yaitu selain
menambah produksi suatu padi, juga dapat menghasilkan ikan. Penelitian ini
dilaksanakan pada bulan September 2016 di Desa Sidodadi Ramunia, Kecamatan
Beringin, Kabupaten Deli Serdang. Tujuan penelitian adalah mengetahui
pendapatan usahatani mina padi (padi-lele) dan non mina padi dan mengetahui
kelayakan usahatani mina padi (padi-lele) dan non mina padi.
Teknik pengambilan sampel yang digunakan adalah proportional
sampling dengan mengambil 4 Mina Padi dan 26 Non Mina Padi sebagai sampel.
Perbandingan pendapatan dihitung dengan rumus pendapatan yaitu Pd = TR - TC,
menguji hipotesis penelitian dilakukan Uji Beda Rata-rata dengan
membandingkan pendapatan usahatani Mina Padi dan Non Mina Padi dan
kelayakan usahatani dengan rumus R/C rasio (Revenue cost ratio), B/C (Benefit
Cost Ratio). Berdasarkan hasil perbandingan pendapatan rata-rata usahatani Mina
Padi (Padi - Lele) per hektar (Ha) adalah Rp.14.940.933,-/Musim, sedangkan ratarata pendapatan usahatani Non Mina Padi per hektar (Ha) adalah Rp.8.372.547,-
/Musim.
Hasil nilai uji beda rata-rata menyatakan tidak terdapat pengaruh
pendapatan mina padi dan non mina padi. Berdasarkan hasil uji beda rata-rata
didapat nilai Thitung < Ttabel dengan nilai 1.066 < 2.0423. Dengan demikian H0
diterima dan H1 ditolak, yang berarti bahwa tidak adanya pengaruh yang
signifikan antara pendapatan mina padi dan non mina padi. Kelayakan usahatani
mina padi dilihat dari nilai R/C 1,80 >1 dan nilai B/C 0,80, sedangkan non mina
padi dilihat dari nilai R/C 4,30 > 1 dan nilai B/C 3,30 maka usahatani yang lebih
layak dalam penelitian adalah Non Mina Padi
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
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