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| Registros recuperados: 18.180 | |
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| Xuri Wu; Nan Liu; Yunmian He; Yijun Chen. |
| Various ketoreductases exclusively participate in all common biological events, and they are a class of important biocatalysts for the production of chiral alcohols. While many types of ketoreductase have been extensively studied and their functions, properties and utilities have been well known, the capability of stereoselectively reducing two carbonyl groups in the same diketohexanoate ester molecule to form a dihydroxy product by a single ketoreductase has not been evidently characterized. Here we show that a unique and novel enzyme, diketoreductase, was cloned from Acinetobacter baylyi, heterogeneously expressed in _Escherichia coli_ and purified to homogeneity. The diketoreductase is up to 78% homologous to bacterial 3-hydroxyacyl coenzyme-A... |
| Tipo: Manuscript |
Palavras-chave: Biotechnology; Chemistry; Microbiology. |
| Ano: 2010 |
URL: http://precedings.nature.com/documents/1697/version/2 |
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| Harvey, Sallyann; Fisher, Bill; Larson, Kristoffer; Malcolm, Bill. |
| The Queensland Fruit Fly (QFF) — Bactrocera tryoni — poses a significant threat to horticultural production in Victoria causing losses of fruit and jeopardising access to interstate and international markets. The Victorian Government implements and largely funds an area freedom program to manage QFF. Concern about the record number of outbreaks in 2007-08 and the escalating costs of maintaining the current management regime, led the Victorian Department of Primary Industries to review the program to identify improved strategies for managing QFF. As part of this work, a benefit cost analysis (BCA) of alternative strategies has been conducted. While the BCA method is well established, in general few studies are publicly available for area freedom programs.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: International Relations/Trade. |
| Ano: 2010 |
URL: http://purl.umn.edu/59740 |
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| C. E. Timothy Paine; Toby Marthews; Deborah Vogt; Drew Purves; Mark Rees; Andy Hector; Lindsay Turnbull. |
| Plant growth is an essential ecological process, integrating across scales from physiology to community dynamics. Predicting the growth of plants is essential to understand a wide range of ecological issues, including competition, plant-herbivore interactions and ecosystem functioning.
A challenge in modeling plant growth is that growth rates almost universally decrease with increasing size, for a variety of reasons. Traditional analyses of growth are hampered by the need to remain within the structures of linear models, which handle this slowing poorly. We demonstrate the implementation of a variety of non-linear models that are more appropriate for modeling plant growth than are the traditional, linear,... |
| Tipo: Presentation |
Palavras-chave: Ecology; Plant Biology. |
| Ano: 2010 |
URL: http://precedings.nature.com/documents/5257/version/1 |
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| Tee, James; Scarpa, Riccardo; Marsh, Dan; Guthrie, Graeme. |
| NPV and LEV are established and common approaches to valuing single rotation and infinite rotation forests respectively, when the rotation age is fixed in advanced. More recently, Real Options approaches have been employed to value single and infinite rotation forests with a flexible harvest age. Under a stochastic timber price process, it has been shown that the valuation of a flexible rotation forest is equal or higher than that of a fixed rotation forest, because a flexible harvest regime delays the harvest if the timber price is not favourable, whereas a fixed harvest regime would proceed to harvest regardless of the price. Often, valuation of fixed and flexible rotation ages are compared using 2 different methods – NPV (or LEV) and Real Options. The... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: NPV; LEV; Real Options; Optimal Harvest Decision; Agribusiness; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use. |
| Ano: 2010 |
URL: http://purl.umn.edu/96836 |
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| Korom, Agoston. |
| Megkülönböztetve egymástól a KAP és a birtokpolitikára vonatkozó közösségi jogi rendelkezéseket, arra a következtetésre jutok, hogy túlzás, illetve nem helytálló Tanka Endre megállapítása, mely szerint az uniós jog a birtokpolitikában „maga a politika”, „a tagállami jogalkotás annak végrehajtására szűkül”, és a birtokpolitikában a közösségi jog „a belső jogot csaknem kiszorítja”, hiszen a tagállam dönthet úgy, hogy semmilyen korlátozást nem léptet életbe a földpiacon, valamint a közösségi joggal összeegyeztetett igen szigorú, Tanka Endre szavaival élve értékalapú birtokpolitikát, polgári demokratikus földreformot is bevezethet. Alapelv szerint a birtokpolitikában a tőke szabad mozgásának korlátozása tilos – minden tagállam esetében –, de az Európai... |
| Tipo: Journal Article |
Palavras-chave: Kettős jogalap; Külföldiek tulajdonszerzése; Hatósági engedélyezés; Moratórium; Mozgástér; Dual legal basis; Land ownership of foreigners; Official permit procedures; Moratorium; Room to maneuver; Agricultural and Food Policy; Land Economics/Use. |
| Ano: 2010 |
URL: http://purl.umn.edu/99131 |
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| Pashaei,Shahyar. |
| Plastination is a process of preservation of anatomical specimens by a delicate method of forced impregnation with curable polymers like silicone, epoxy or polyester resins with vast applications in medical fields of study. Plastination is a technique of tissue preservation developed by Dr. Gunther von Hagens in 1977. In this process, water and lipids in biological tissues are replaced by curable polymers (silicone, epoxy, polyester) which are hardened, resulting in dry, odorless and durable specimens. In this technique it is possible for us to treat every part of the body and tissues to preserve it for educational purposes. Nowadays there are new and vast varieties of applications for plastination in the educational and cultural areas. This invention has... |
| Tipo: Journal article |
Palavras-chave: Plastination; Impregnation. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400014 |
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| KADOHIRA, Mutsuyo; TAJIMA, Motoshi; 門平, 睦代. |
| The Betsukai town office implemented bovine viral diarrhea virus (BVDV) preventive activities (i.e., vaccination and surveillance) in 2006. Using bulk tank milk screening followed by individual blood tests using a Reverse Transcription-Polymerase Chain Reaction (RT-PCR) method, persistent infection (PI) cattle were detected and eliminated from the population. Based on data for PI cattle detected between 2006 and 2007, we conducted a case control study to find risk factors associated with the presence of PI cattle. Significantly associated farm level factors for increasing risk of producing PI cattle include; 1) no recent purchase of cattle (between 2004 and 2007) and 2) no prevention of people/animals entering the premises. This study suggests that not... |
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Palavras-chave: Biosecurity; BVDV infection; Case control study; Hokkaido/Japan. |
| Ano: 2010 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4126 |
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| Hyde, K.D.; Chomnunti, P.; Crous, P.W.; Groenewald, J.Z.; Damm, U.; Ko Ko, T.W.; Shivas, R.G.; Summerell, B.A.; Tan, Y.P.. |
| Several filamentous oomycete species of the genus Halophytophthora have recently been described from marine environments, mostly from subtropical and tropical ecosystems. During a survey of oomycetes from leaf litter of Spartina alterniflora in salt marshes of southeastern Georgia, isolates of four taxa were recovered that bore similarity to some members of Halophytophthora but were highly divergent from isolates of Halophytophthora s.str. based on a combined sequence analysis of two nuclear loci. In phylogenetic analyses, these isolates were placed basal to a monophyletic group comprised of Pythium of the Pythiaceae and the Peronosporaceae. Sequence and morphology of these taxa diverged from the type species Halophytophthora vesicula, which was placed... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Internal transcribed spacer; Nuclear ribosomal large subunit (nrLSU); Peronosporales; Phylogeny; Pythiaceae. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/532294 |
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| Strauch, Brian A.; Peck, Dannele E.; Held, Larry J.. |
| Feeder cattle prices are generally lower in the fall, when the volume of calves for sale is highest. Most ranches in the Rocky Mountains calve in March or April, which results in the sale of weaned calves in October, when feeder cattle prices tend to be lowest. This study was initiated with the idea that a rancher might improve profitability by switching to fall calving, which would enable them to sell calves in April at a higher price. In this study, fall calving generated both higher and less variable profit, but mainly because of cost savings. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/96372 |
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| Registros recuperados: 18.180 | |
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