Wildfires,responsibility and trust: public understanding of Sweden's largest wildfire     

Rolf Lidskog  Johanna Johansson  Daniel Sjödin 《Scandinavian Journal of Forest Research》2019,34(4):319-328

Wildfires present a growing risk to many countries, and climate change is likely to exacerbate this risk. This study analyzes how people directly affected by a wildfire understand its causes and consequences, as well as the future risk of wildfires. The point of departure is that social understanding of wildfires has an important influence on the consequences that emerge in the wake of a wildfire. The empirical case analyzed here is the largest forest fire in modern Swedish history, and the material basis of the study is a postal survey to all individuals directly affected by the fire. The results revealed a complex picture of the respondents’ understanding of the wildfire. Even if the fire was human caused, there was little blame toward forest companies and fire departments. Many positive consequences, such as a long-term increase in biodiversity, were attached to the disaster, and there was a belief that organizations will learn from it and take action to limit wildfires in the future. Simultaneously, the majority of the respondents believed that climate change may lead to an increased risk of forest fires in the future. These findings illustrate the complexity of people's perceptions of the fire and its aftermath.  相似文献   

Recumbency decreases mare and foal survival following in-hospital dystocia management     

Heather Roe  Margo Macpherson  Thomas Denagamage  Scott Hopper  Brett Woodie  Rolf Embertson 《Equine veterinary journal》2024,56(1):37-43

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Z?hlt das Ausaften bei der Zeitstudie zur Vorarbeit oder zur hauptarbeit?     

Forstaffeffor Rolf Meber 《Forstwissenschaftliches Centralblatt》1932,54(2):69-73

Ohne Zusammenfassung  相似文献   

Protection of neonatal chicks against a lethal challenge of Escherichia coli using DNA containing cytosine-phosphodiester-guanine motifs     

Gomis S  Babiuk L  Allan B  Willson P  Waters E  Ambrose N  Hecker R  Potter A 《Avian diseases》2004,48(4):813-822

Oligodeoxynucleotides (ODN) containing cytosine-phosphodiester-guanine (CpG) motifs have been shown to be effective immunoprotective agents in murine models for a variety of viral, intracellular bacterial, and protozoan infections. We recently have shown that CpG ODN protects against extracellular bacterial infections in mature chickens. The objective of this study was to investigate the effect of CpG ODN on Escherichia coli septicemia in neonatal broiler chicks. Two-day-old chicks, or embryonated eggs that had been incubated for 18 or 19 days, received 50 microg CpG ODN. Three days after exposure to CpG ODN, a virulent isolate of E. coli was inoculated subcutaneously in the neck of each bird. Birds were examined for 7 days post-E. coli challenge and dinical, pathologic, and bacteriologic assessments were conducted. The control group of birds that received no CpG ODN had a survival rate of 0% to 20%. In contrast, groups that received CpG ODN, either by intramuscular or in ovo routes, had significantly higher survival rates (P < 0.0001). Bacterial counts in air sacs were significantly lower when birds or embryos were treated with CpG ODN as compared with controls. A dose as low as 10 microg of CpG ODN, administered intramuscularly, was able to protect birds significantly against E. coli challenge. Formulation of CpG ODN with 30% Emulsigen did not enhance the protection. This study demonstrates that CpG ODN has systemic protective effects in broiler chicks against E. coli infections. This is the first time that CpG ODN has been demonstrated to have an immunoprotective effect against a bacterial infection in chicks following in ovo delivery.  相似文献   

Norddeutschlands Apfelsorten     

Rolf Stehr 《Erwerbs-Obstbau》2016,58(4):285-286

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Ring test evaluation of the detection of influenza A virus in swine oral fluids by real-time reverse-transcription polymerase chain reaction and virus isolation     

Christa K. Goodell  Jianqiang Zhang  Erin Strait  Karen Harmon  Devi Patnayak  Tracy Otterson  Marie Culhane  Jane Christopher-Hennings  Travis Clement  Pamela Leslie-Steen  Richard Hesse  Joe Anderson  Kevin Skarbek  Amy Vincent  Pravina Kitikoon  Sabrina Swenson  Melinda Jenkins-Moore  Jodi McGill  Rolf Rauh  William Nelson  Catherine O’Connell  Rohan Shah  Chong Wang  Rodger Main  Jeffrey J. Zimmerman 《Canadian journal of veterinary research》2016,80(1):12-20

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欧盟农业的发展之路     

Rolf Moehler 《中国农业信息》2008,(12)

欧盟是当今世界一体化程度最高的区域政治、经济集团组织,其总部设在比利时首都布鲁塞尔,是在二战后欧洲共同体的基础上发展建立起来的,现有27个成员国。欧盟共有5个主要机构,欧洲理事会、欧盟理事会、欧盟委员会、欧洲议会、欧洲法院。其他重要机构还有欧盟审计院、欧洲中央银行、欧洲投资银行、经济和社会委员会、地区委员会、欧洲警察局和欧洲军备局等。欧盟地区的农业不但以高度发达著称于世,其制订的一系列"捆绑式发展措施"和高额农业补贴政策对世界农业也产生了越来越大的影响,在全球经济日益一体化的今天,了解欧盟农业的发展战略与管理体制对我国乃至其他世界集团组织都有着重要的借鉴意义。  相似文献   

Temperature dependence of gross N transformation rates in two Chinese paddy soils under aerobic condition     

Ting Lan  Yong Han  Marco Roelcke  Rolf Nieder  Zucong Cai 《Biology and Fertility of Soils》2014,50(6):949-959

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Porcine reproductive and respiratory syndrome virus (PRRSV) surveillance using pre-weaning oral fluid samples detects circulation of wild-type PRRSV     

Apisit Kittawornrat  Yaowalak Panyasing  Christa Goodell  Chong Wang  Phillip Gauger  Karen Harmon  Rolf Rauh  Luc Desfresne  Ian Levis  Jeffrey Zimmerman 《Veterinary microbiology》2014,168(2-4):331-339

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Nitrogen mineralization from mature bio‐waste compost in vineyard soils. I. Long‐term laboratory incubation experiments     

Claas Nendel  Stephan Reuter  Roland Kubiak  Rolf Nieder 《植物养料与土壤学杂志》2004,167(4):397-407

The steadily increasing utilization of bio‐waste compost in German viticulture requires a more detailed investigation of nitrogen (N) mineralization parameters for mature bio‐waste compost applied to vineyard soils. N mineralization kinetics were described with two superposing exponential equations. Long‐term aerobic laboratory incubation experiments of 12 soil‐compost substrates revealed that 5±2.8% of its total N content could be released from a rapidly decomposable fraction (half‐life period t₅₀ = 41 d at 15°C) and another 60±2.9% from a slower decomposable fraction (t₅₀ = 490 d). The remaining proportion (35%) is considered not to be released in the medium term. The obtained potentially mineralizable nitrogen of 65% of total compost N significantly differs from current fertilizer recommendations, which were adopted from calculations for agricultural conditions. For fertilizer recommendations in viticulture, we recommend the consideration of a higher N‐mineralization potential for organic fertilizers.  相似文献