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141.
Natalia Diez-Bru DVM PhD Isabel Garcia-Real DVM Elena M. Martinez DVM PhD Eduardo Rollan DVM PhD Ana Mayenco DVM PhD Pilar Llorens DM PhD 《Veterinary radiology & ultrasound》1998,39(3):226-233
Signalment, clinical history, physical examination, clinicopathologic, readiographic and ultrasonographic findings of 10 female dogs with histologically confirmed ovarian neoplasms were reviewed. Ultrasonographic images and reports were reviewed for (1) location, size, outer margins, and echogenicity of the mass(es), (2) presence of free abdominal fluid, (3) evidence of uterine abnormalities, and (4) signs of metastatic disease. The masses were classified according to their ultrasonographic pattern in solid, solid with cystic component, and cystic. The masses were ultrasonographically reported as being of ovarian origin in eight dogs, and this origin was included in the list of differentials in the remaining two dogs. When present, abdominal effusions and uterine abnormalities were diagnosed by means of ultrasound. 相似文献
142.
Federica Rossi DMV SRV Massimo Vignoli DMV SRV Rossella Terragni DMV SPCAA Luigi Pozzr DMV Carlo Impallomeni DM Marina Magnani DM 《Veterinary radiology & ultrasound》2003,44(3):283-286
A 9-month-old neutered male cat was referred because of left forelimb lameness. Physical examination, laboratory analysis, and radiographic examination of the entire skeleton were performed. The radiographic diagnosis was bilateral radio-ulnar synostosis with secondary elbow malformation. A comparison between clinical and radiographic findings of the cat and those described in children affected by radio-ulnar synostosis is reported. Correlations and differences are discussed. 相似文献
143.
Cutaneous trombidiosis caused by larvae of trombiculid mites (Vercammenia gloriosa and V. zweifelorum) in the skin of a wild tree frog, Litoria wilcoxii, in northern Queensland, Australia manifested as small, domed vesicular lesions on the dorsal and lateral surfaces posterior to the eyes. The lesions contained small, orange trombiculid mites, with a surrounding minimal inflammatory reaction. The general health and behaviour of the frog appeared unaffected. Provisional diagnosis of cutaneous trombidiosis can be made from its distinctive clinical appearance and confirmed by biopsy with direct microscopic examination of mites. This case report represents a new host record. 相似文献
144.
145.
Spatial scale invariance of southern Australian forest fires mirrors the scaling behaviour of fire-driving weather events 总被引:1,自引:0,他引:1
Matthias M. Boer Rohan J. Sadler Ross A. Bradstock A. Malcolm Gill Pauline F. Grierson 《Landscape Ecology》2008,23(8):899-913
Power law frequency-size distributions of forest fires have been observed in a range of environments. The scaling behaviour
of fires, and more generally of landscape patterns related to recurring disturbance and recovery, have previously been explained
in the frameworks of self-organized criticality (SOC) and highly optimized tolerance (HOT). In these frameworks the scaling
behaviour of the fires is the global structure that either emerges spontaneously from locally operating processes (SOC) or
is the product of a tuning process aimed at optimizing the trade-offs between system yield and tolerance to risks (HOT). Here,
we argue that the dominant role of self-organized or optimised fuel patterns in constraining unplanned-fire sizes, implicit
in the SOC and HOT frameworks, fails to recognise the strong exogenous controls of fire spread (i.e. by weather, terrain,
and suppression) observed in many fire-prone landscapes. Using data from southern Australia we demonstrate that forest fire
areas and the magnitudes of corresponding weather events have distributions with closely matching scaling exponents. We conclude
that the spatial scale invariance of forest fires may also be a mapping of the meteorological forcing pattern.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献