531 research outputs found

    A Study and Evaluation of the Textbooks Used in Typewriting and Junior Business Training

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    he progress of man through the ages has been definitely marked by the various means he has employed in putting his thoughts into visible form. There are defnite milestones in the progress of the written word. History teaches us of the early Babylonian scripts, the strange and unusual characters of the Egyptians, and the writing of other ancient people. After the first early writings of stone carvings came the ancient development of papyrus in Egypt, the wax tables and atylus of the Romans, and the parchment of the Middle Ages. Then in the early days of that wondrous new era known as the Renaissance came the knowledge of a new process, paper manufacture. This information came from Mohammedan sources. Following this knowledge came the first Western paper mill, which was situated in Italy in the year 1276

    Ultrastructural Ultilization of Plants by Herbivores

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    Study of the patterns of ruminal digestion of forages enhances the nutritional knowledge of how specific plant tissues are digested and adds its own dimension by characterizing the specific cells and the complex interactions of ruminal microflora with those tissues. A common pattern of digestibility exists for mono- and dicotyledon leaves: mesophyll and phloem are degraded readily, and sclerenchyma slowly, whereas cuticle and the remaining vascular tissues are rarely utilized . Digestion of stems is limited to parenchymal tissues in monocotyledons and to cortex and parenchyma in dicotyledons. Epidermal silica and cuticle are undigestible and restrict microbial entrance. Calcium oxalate crystals in legumes are utilized poorly by animals, suggesting the need for further attention to structure in feedstuff analyses. Future studies by animal scientists on plant utilization and by agronomists in genetics should include structural considerations along with the well recognized experimental procedures

    Performance of mid-lactating dairy cows fed a grain sorghum-soybean silage base diet

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    Whole-plant silage from intercropped grain sorghum and Williams 82 soybean was compared to corn silage in a mixed diet for mid-lactation dairy cows. Cows fed the grain sorghum-soybean silage yielded 45.13 lb and those fed corn silage yielded 44.05 lb of fat (4%)-corrected milk daily. Milk yield, milk fat, and milk lactose percentages were similar between cows fed the two silages. Protein and solids non-fat percentages for the cows fed the corn silage diet were .09 and .06 units greater than those of cows fed the grain sorghum silage. Cows fed the corn silage tended to gain more (+105.8 lb) than those fed the grain sorghum-soybean silage (+95.2 lb). We conclude that, if the cost for producing intercropped grain sorghum and soybean silage (ton/acre) is at least similar to that of producing corn silage, the intercropped grain sorghum and soybean silage can be substituted for corn silage in a mid-lactation dairy cow diet

    Rumen Studies

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    Animal Nutritio

    Bridging the gap between educational research and educational practice: The need for critical distance

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    The contributions to this special issue explore a range of different aspects of the relationship between research and practice in education. All start from the assumption that there is a gap between research and practice. Some authors take a descriptive approach in that they try to outline the nature of and reasons for the alleged gap between research and practice. Educational research is, after all, never simply research on education but always in some sense also research for education. This, in sum, reveals that it is as important to try to bridge gaps between research and practice as it is to keep a critical distance between the two, both from the side of educational research and from the side of educational practice

    The golden circle: A way of arguing and acting about technology in the London ambulance service

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    This paper analyses the way in which the London Ambulance Service recovered from the events of October 1992, when it implemented a computer-aided despatch system (LASCAD) that remained in service for less than two weeks. It examines the enactment of a programme of long-term organizational change, focusing on the implementation of an alternative computer system in 1996. The analysis in this paper is informed by actor-network theory, both by an early statement of this approach developed by Callon in the sociology of translation, and also by concepts and ideas from Latour’s more recent restatement of his own position. The paper examines how alternative interests emerged and were stabilized over time, in a way of arguing and acting among key players in the change programme, christened the Golden Circle. The story traces four years in the history of the London Ambulance Service, from the aftermath of October 1992 through the birth of the Golden Circle to the achievement of National Health Service (NHS) trust status. LASCAD was the beginning of the story, this is the middle, an end lies in the future, when the remaining elements of the change programme are enacted beyond the Golden Circle

    Effective low-dose sirolimus regimen for kaposiform haemangioendothelioma with Kasabach-Merritt phenomenon in young infants

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    Aims Management of kaposiform haemangioendotheliomas (KHE) with Kasabach-Merritt phenomenon is challenging in young infants who are subjected to developmental pharmacokinetic changes. Sirolimus, sometimes combined with corticosteroids, can be used as an effective treatment of KHE. Simultaneously, toxicities such as interstitial pneumonitis related to the use of sirolimus may be fatal. As infants have a very low CYP3-enzyme expression at birth, which rises during ageing, we hypothesize that a reduced metabolization of sirolimus might lead to high sirolimus serum levels and low dose may be sufficient without the side effects. Methods A case series of 5 infants with kaposiform haemangioendothelioma with Kasabach-Merritt phenomenon was analysed retrospectively. All infants were treated with sirolimus 0.2 mg/m(2) every 24 or 48 hours according to their age. Prednisone was added to the therapy for additional effect in 4 patients. Results In all patients, low dose of sirolimus led to therapeutic sirolimus levels (4-6 ng/mL). All infants (aged 4 days-7 months) had a complete haematological response, without serious adverse events. In all patients, the Kasabach-Merritt phenomenon resolved, the coagulation profile normalized and tumour size reduction was seen. Conclusion Low-dose sirolimus treatment is safe for infants with kaposiform haemangioendothelioma and Kasabach-Merritt phenomenon. It is essential to realize that during the first months of life, metabolism is still developing and enzymes necessary to metabolise drugs like sirolimus still have to mature. To avoid toxic levels, the sirolimus dosage should be based on age and the associated pharmacological developments
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