Reversal of bone loss in mice by nongenotropic signaling of sex steroids     

Kousteni S  Chen JR  Bellido T  Han L  Ali AA  O'Brien CA  Plotkin L  Fu Q  Mancino AT  Wen Y  Vertino AM  Powers CC  Stewart SA  Ebert R  Parfitt AM  Weinstein RS  Jilka RL  Manolagas SC 《Science (New York, N.Y.)》2002,298(5594):843-846

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Genomics. A genome for the environment     

Ebert D 《Science (New York, N.Y.)》2011,331(6017):539-540

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Ein Beitrag zum Problem der Ertragsfähigkeit von Ackerböden     

Dieter Ebert 《Archives of Agronomy and Soil Science》2013,59(10):785-799

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Beziehungen zwischen Stickstoff- und Magnesiumdüngung bei Kartoffeln     

Klaus Ebert  Hans Görlitz 《Archives of Agronomy and Soil Science》2013,59(5):427-438

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A visceral mycosis in ayu fry, Plecoglossus altivelis Temminck & Schlegel, caused by a species of Phoma     

K. HATAI  Y. FUJIMAKI  S. EGUSA  Y. JO 《Journal of fish diseases》1986,9(2):111-116

Abstract. Epizootics and histopathology of a new visceral mycosis due to fungi impefecti which occurred in farmed ayu, Plecoglossus altivelis Temminck & Schlegel, in Tokushima Prefecture, Japan are described. Histopathological examination suggested that fungal infection occurred primarily in the airbladder. A fungus with characteristics of the genus Phoma isolated from diseased fish is described and its taxonomic position discussed.  相似文献   

Mariculture potential of the spot prawn, Pandalus platyceros Brandt     

Randolph O. Kelly  Arthur W. Haseltine  Earl E. Ebert 《Aquaculture (Amsterdam, Netherlands)》1977,10(1):1-16

Biological characteristics and culture methods were investigated for the spot prawn, Pandalus platyceros Brandt. Ovigerous adults were caught in the local fishery; six of these produced 2 628 to 4 669 larvae. The larval period ranged from 26 to 35 days (9.5–12.0°C). Maximum larval survival was about 70%, with mortalities being most frequent during ecdysis. The relation of wet weight (g) to carapace length (mm) for the first 26 months was calculated as log W = ?3.0843 + 2.9308 log L. Prawns showed good survival between 9.5 and 21.0°C. Mortality increased sharply when temperatures exceeded 21.0°C. Salinities below 22‰ resulted in a sharp increase in mortality.A diet of brine shrimp nauplii sufficed for newly hatched larvae. Growth was enhanced when larvae were fed a unicellular algal supplement (Phaeodactylum tricornutum), although mortality was somewhat higher. Larvae progressed rapidly to foraging on larger brine shrimp and diced foods. Six-month-old spot prawns raised on a squid diet averaged 3.4 g, and at 1 year the mean weight was 6.3 g. A feeding experiment, incorporating 12 diets, disclosed that highest growth rates and best food conversion ratios were achieved on a combined California seamussel and giant red sea urchin diet. However, the best growth rate achieved was considered marginal for mariculture.It was concluded that unless the growth rate could be accelerated by other food formulations or culture techniques, a monoculture system for mass cultivation would not be feasible. The spot prawn may have potential in a polyculture system.  相似文献   

Virulence and local adaptation of a horizontally transmitted parasite     

Ebert D 《Science (New York, N.Y.)》1994,265(5175):1084-1086

Parasites are thought to maximize the number of successfully transmitted offspring by trading off propagule production against host survival. In a horizontally transmitted microparasitic disease in Daphnia, a planktonic crustacean, increasing geographic distance between host and parasite origin was found to be correlated with a decrease in spore production and virulence. This finding indicates local adaptation of the parasite, but contradicts the hypothesis that long-standing coevolved parasites are less virulent than novel parasites. Virulence can be explained as the consequence of balancing the positive genetic correlation between host mortality and strain-specific spore production.  相似文献   

Endoscopic resection of a vaginal septum in a bitch and observation of septa in two related bitches     

SP Arlt  J Rohne  AD Ebert  W Heuwieser 《New Zealand veterinary journal》2013,61(4):258-260

Abstract

CASE HISTORY: In 2008, a 3-year-old female Labrador Retriever was presented for routine breeding soundness evaluation.

CLINICAL FINDINGS: Vaginal endoscopy revealed an 8-cm long and 1-cm thick vaginal septum. Surgical resection of the septum was performed under general anaesthesia using a bipolar high-frequency resectoscope. Three months later the bitch was naturally mated and subsequently delivered five male and two female puppies without complications. Both female puppies were examined at the age of 12 and 15 months and showed a vaginal septum with a diameter of 0.3 and 0.5 cm, respectively.

DIAGNOSIS: Vaginal septa in three related bitches.

CLINICAL RELEVANCE: This is the first report describing the use of a bipolar high-frequency resectoscope for vaginal surgery in dogs. The septum could be resected quickly, with preservation of surrounding structures. Furthermore, it is the first report collecting information about familial presentation of vaginal septa in female dogs. Based on this case, we suggest that consideration should be given to the possible risk of inheritance of vaginal septa before considering surgical resection and breeding of female dogs.  相似文献   

Morphogenetic tissue interactions     

Ebert JD 《Science (New York, N.Y.)》1969,166(3910):1314-1316

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Obstbau in einer Oase     

Georg Ebert  Ibrahim Abdulhadi  Hassan Ali-Dinar 《Erwerbs-Obstbau》2005,12(5):61-66

Al Hassa, gelegen in der Golfregion Saudi-Arabiens, ist eine der größten und ältesten Oasen des Mittleren Ostens. Neben der Ölindustrie ist die rasch anwachsende Bevölkerung traditionell mit dem Gartenbau verbunden, in erster Linie mit der Kultur der Dattelpalme. Das vorherrschende Wüstenklima mit langen, trocken-heißen Perioden sowie zurückgehende Süßwasserreserven schaffen zunehmende Probleme für die landwirtschaftliche Produktion. Dazu kommt eine immer stärker werdende Versalzung der Bewässerungsflächen aufgrund des salzhaltigen Bewässerungswassers. Im vorliegenden Artikel werden der Obstbau in der Oase Al Hassa vor dem Hintergrund der aktuellen Wasserproblematik beschrieben und mögliche Lösungsansätze aufgezeigt.  相似文献