Mucoadhesive chitosan films as a potential ocular delivery system for ofloxacin: preliminary in vitro studies     

Gustavo de Oliveira Fulgêncio  Fernando Antônio B. Viana  Rodrigo Otávio S. Silva  Francisco Carlos F. Lobato  Raul R. Ribeiro  Juçara R. Fanca  Ricardo Martins D. Byrro  André Augusto G. Faraco  Armando da Silva Cunha‐Júnior 《Veterinary ophthalmology》2014,17(2):150-155

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Reference intervals of acute phase proteins in healthy Andalusian donkeys and response to experimentally induced endotoxemia     

Alejandro Perez‐Ecija  Antonio Buzon‐Cuevas  Raul Aguilera‐Aguilera  Carlos Gonzalez‐De Cara  Franciso J. Mendoza Garcia 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2021,35(1):580-589

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RESEARCH PROGRESS ON THE IMPACT OF NITROGEN DEPOSITION ON GLOBAL GRASSLANDS     

Carly J. STEVENS  Sofia BASTO  Michael D. BELL  Tianxiang HAO  Kevin KIRKMAN  Raul OCHOA-HUESO 《农业科学与工程前沿(英文版)》2022,9(3):425

● Grasslands in many regions of the world have been impacted by atmospheric nitrogen deposition. ● Nitrogen deposition commonly leads to reductions in species richness. ● Increases in biomass production is a common response to increased N deposition. ● In some parts of the world there has been limited research into the impacts of nitrogen deposition. Grasslands are globally-important ecosystems providing critical ecosystem services. The species composition and characteristics of grasslands vary considerably across the planet with a wide variety of different grasslands found. However, in many regions grasslands have been impacted by atmospheric nitrogen deposition originating from anthropogenic activities with effects on productivity, species composition and diversity widely reported. Impacts vary across grassland habitats but many show declines in species richness and increases in biomass production related to soil eutrophication and acidification. At a continental level there is considerable variation in the research effort that has been put into understanding the impacts of nitrogen deposition. In Europe, North America and parts of Asia, although there are unanswered research questions, there is a good understanding of N deposition impacts in most grassland habitats. This is not the case in other regions with large knowledge gaps in some parts of the world. This paper reviews the impacts of N deposition on grasslands around the world, highlighting recent advances and areas where research is still needed.  相似文献   

Endosymbiont load,personality and reproductive output of maize weevils (Sitophilus zeamais)     

Vieira  Juliana L.  Guedes  Raul Narciso C. 《Journal of pest science》2021,94(3):691-701

Journal of Pest Science - Endosymbiotic association is frequent in insects, and endosymbionts influence a range of biological processes in these organisms. The endosymbiont–insect association...  相似文献   

Analysis of sediment transport modeling using computational fluid dynamics (CFD) for aquaculture raceways   总被引：2，自引：0，他引：2  

Dania L. Huggins  Raul H. Piedrahita  Tom Rumsey 《Aquacultural Engineering》2004,31(3-4):277-293

A simulation model to analyze the water flow and sediment transport in aquaculture raceways was developed using a computational fluid dynamics (CFD) software package. The simulation was used to evaluate the efficiency of solids settling in the quiescent zone of existing trout raceways. This efficiency was based on the percentage of solids removed, which corresponds to the percentage of solids introduced into the raceway that settle in it, with settling taking place primarily in the quiescent zone.

The raceway selected for model validation was a rectangular concrete raceway 30.0 m long, 3.0 m wide, 0.9 m deep, with a slope of 0.01. The raceway included a quiescent zone of approximately 5.3 m in length, which was separated from the rearing area by a screen. The water flow rate through the raceway was approximately 0.058 m³/s. Velocity measurements were recorded at 230 stations along the raceway using an acoustic Doppler velocimeter, for comparison with the results obtained from the simulations.

For the purpose of simulating sediment transport, six groups of particles were used to account for the total suspended solids. The sizes of the particles selected were based on an experimentally determined distribution for solids from a similar raceway, and were 692, 532, 350, 204, 61, and 35 μm for Groups 1–6, respectively. The particle density for each size was assumed to be 1150 kg/m³. Values of the percentage of solids removed for the different particle sizes were 100.0% for the largest particles, and 54.7, 0.9, and 0.1% for the three smallest particles, respectively. This methodology of analyzing the raceway sediment transport in terms of its percentage of solids removed based on CFD simulations can also be used to examine raceway design alternatives for improving the particle removal efficiency.  相似文献   

Comparison of Diclofenac Diethylamine Permeation Across Horse Skin from Five Commercial Medical Human Formulations     

Alfredo Andreeta DChem  Claudio Verde DVM  Maximo Babusci BVetMed  Raul Muller BVetMed  Maria I. Simpson BVetMed  Maria Fabiana Landoni PhD 《Journal of Equine Veterinary Science》2011,31(9):502-505

The aim of this study was to compare the penetration of diclofenac through horse skin in vitro and its efficacy in vivo when applied from five, commercially available, human medical formulations containing 1.16% diclofenac diethylamine. The rate of transdermal penetration of diclofenac varied between formulations. Also, estimated steady-state flux (Jss) was significantly different from that reported for human and rat skin. All the tested formulations produced a very weak and short-lasting antiedematous effect.  相似文献   

Early growth habit and vigour parameters in olive seedlings     

Sofiene B.M. Hammami  Lorenzo León  Hava F. Rapoport  Raul De la Rosa 《Scientia Horticulturae》2011

Fruit tree growth habit and vigour are important traits for orchard management and production, yet are difficult to select for in breeding programs because the parameters for their evaluation are complex, and their expression often requires sufficient plant size and development, entailing valuable time. Thus, in olive (Olea europaea L.) breeding, as for other fruit crops, it is critical to define growth habit and vigour parameters with selection potential, and to determine the earliest age at which they can be measured. Furthermore seedling growth habit traits are important in themselves, particularly in their relation to juvenile period length and management. To explore these issues we evaluated a series of new and standard growth habit parameters during the first year of growth in a population of unpruned olive seedlings originating from six different crosses. The influence of plant age on growth habit traits was determined by comparing measurements at two or three different times. Both parent genotype and plant age significantly affected the vigour and growth habit of the olive seedlings, and 9 months was the most appropriate age for evaluating seedling growth parameters. ‘Picual’, ‘Arbosana’ and ‘Sikitita’ were shown to be promising cultivars for use as genitors, because of their tendency to produce offspring with desirable growth habit traits such as high vigour, weeping habit and low lateral shoot number. From among the 17 parameters studied, based on parent influence and the absence of correlation among parameters, five were identified which best described olive seedling growth habit: Primary Shoot Top Diameter, Primary Shoot Conicity, Secondary Shoot Number, Secondary Shoot Insertion Angle and Longest Secondary Shoot Internode Length.  相似文献   

Coccygeal chordoma in a dog.     

John S Munday  Cathy A Brown  Raul Weiss 《Journal of veterinary diagnostic investigation》2003,15(3):285-288

A 4-cm diameter spherical mass was removed from the region of the second coccygeal vertebra of a 6-year-old female Doberman Pinscher dog. The mass had been present for 7 months and was described as multilobular and smooth. Histologically, the neoplasm consisted of small spindle-shaped cells surrounding lobules of large vacuolated polygonal cells. Mucin was present within most lobules. The large polygonal cells stained positively with antibodies against vimentin, cytokeratin, and S-100 protein. Although the spindle-shaped cells stained positively with antibodies against vimentin, they only occasionally contained cytokeratin. The histology and immunohistochemistry are consistent with that reported for chordoma. Although 4 chordomas have previously been reported in dogs, this is the first case in which immunohistochemistry has been used to support the histological diagnosis. Neither recurrence nor metastasis was reported 10 months after surgical excision.  相似文献   

Geophysics. Slippery when hot     

Madariaga R 《Science (New York, N.Y.)》2007,316(5826):842-843

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Disentangling a Neotropical pest species complex: genetic diversity and population structure of the native rice stink bug Oebalus poecilus and the invasive O. ypsilongriseus     

Juliana L. Vieira  Luiz O. de Oliveira  José Alexandre F. Barrigossi  Raul Narciso C. Guedes  Guy Smagghe  Kevin Maebe 《Pest management science》2023,79(3):959-968

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