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Статті в журналах з теми "Alternative sources of nutrients":
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Martins, Vanessa, Douglas Ramos Guelfi Silva, Giuliano Marchi, Maurício Cunha Almeida Leite, Éder de Souza Martins, Ana Stella Freire Gonçalves, and Luiz Roberto Guimarães Guilherme. "EFFECT OF ALTERNATIVE MULTINUTRIENT SOURCES ON SOIL CHEMICAL PROPERTIES." Revista Brasileira de Ciência do Solo 39, no. 1 (February 2015): 194–204. http://dx.doi.org/10.1590/01000683rbcs20150587.
The current high price of potassium chloride and the dependence of Brazil on imported materials to supply the domestic demand call for studies evaluating the efficiency of alternative sources of nutrients. The aim of this work was to evaluate the effect of silicate rock powder and a manganese mining by-product, and secondary materials originated from these two materials, on soil chemical properties and on brachiaria production. This greenhouse experiment was conducted in pots with 5 kg of soil (Latossolo Vermelho-Amarelo distrófico - Oxisol). The alternative nutrient sources were: verdete, verdete treated with NH4OH, phonolite, ultramafic rock, mining waste and the proportion of 75 % of these K fertilizers and 25 % lime. Mixtures containing 25 % of lime were heated at 800 ºC for 1 h. These sources were applied at rates of 0, 150, 300, 450 and 600 kg ha-1 K2O, and incubated for 45 days. The mixtures of heated silicate rocks with lime promoted higher increases in soil pH in decreasing order: ultramafic rock>verdete>phonolite>mining waste. Applying the mining waste-lime mixture increased soil exchangeable K, and available P when ultramafic rock was incorporated. When ultramafic rock was applied, the release of Ca2+ increased significantly. Mining subproduct released the highest amount of Zn2+ and Mn2+ to the soil. The application of alternative sources of K, with variable chemical composition, altered the nutrient availability and soil chemical properties, improving mainly plant development and K plant uptake, and are important nutrient sources.
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Kowalska, Dorota. "Insects as a source of nutrients in animal feed." Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego 15, no. 3 (October 2, 2019): 25–37. http://dx.doi.org/10.5604/01.3001.0013.5131.
Global production of compound feed in 2018 was 1.103 billion tonnes, which was an increase of 3% compared to 2017. To meet the needs of the growing livestock population, a further increase in compound feed production is necessary. The need for new, alternative nutrient sources for feed production, in order to meet the anticipated consumer demand for animal products, has led to an increase in research on the potential uses and effects of insect-derived products, such as whole insects or insect meals and oils. Insects appear to be one of the most promising alternatives to nutrient sources such as soybean and fish meal, commonly used in feed for livestock and aquaculture. The purpose of the review was to present the currently available literature on the use of insects as feed in livestock production and to systematize it in one easy-to-read document. Particular focus has been placed on the use of insect products for animals such as poultry, rabbits and pigs, as well as their effect on productivity, nutrient digestibility, performance, and product quality. The results of numerous studies suggest that insects can be a source of nutrients in feed for poultry, rabbits and pigs.
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Karimi, Sajjad, Nasrollah Mahboobi Soofiani, Amir Mahboubi, and Mohammad Taherzadeh. "Use of Organic Wastes and Industrial By-Products to Produce Filamentous Fungi with Potential as Aqua-Feed Ingredients." Sustainability 10, no. 9 (September 14, 2018): 3296. http://dx.doi.org/10.3390/su10093296.
Organic-rich waste and industrial by-product streams, generated in enormous amounts on a daily basis, contain substantial amounts of nutrients that are worthy of recovery. Biological conversion of organic-waste streams using filamentous fungi is a promising approach to convert nutrients into value-added bioproducts, such as fungal biomass. High-protein fungal biomass contains different kinds and levels of amino acids, fatty acids, immunostimulants, antioxidants, pigments, etc., which make it a potential choice for application in animal feed supplementation. Considering the challenges long faced by the aquaculture industry in fishmeal production due to the increasing prices and environmental concerns, the aquaculture industry is forced to provide alternative protein-rich sources to replace conventional fishmeal. In this review, the possibilities of utilization of filamentous fungi biomass cultivated on organic-rich waste streams, as an alternative nutrient source in fish feed, were thoroughly reviewed.
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Siti Juariah. "POTENSI UBI JALAR PUTIH (Ipomoea batatas linneaus varietas) SEBAGAI MEDIA ALTERNATIF PERTUMBUHAN BAKTERI Staphylococcus aureus." Jurnal Penelitian Farmasi Indonesia 10, no. 1 (June 25, 2021): 23–26. http://dx.doi.org/10.51887/jpfi.v10i1.1163.
Bacterial growth is highly dependent on nutrient sources, energy sources and environmental conditions. Nutrien agar is a medium that is often used for bacterial growth. The use of Nutrien agar requires a high cost, so it is considered to have no economic value. The use of alternative media is cheap, easy to obtain, and has a large source of nutrients for the growth of the required bacteria. White sweet potato (Ipomoea batatas linneaus variety) has a high carbohydrate content to be used as a carbon source for bacterial growth. The purpose of this study was to reveal the potential of white sweet potato (Ipomoea batatas linneaus variety) as an alternative medium for the growth of Staphylococcus aureus bacteria. This research uses experimental laboratory methods. Staphylococcus aureus growth was observed, and total plate number was calculated on nutrien agar and white sweet potato (Ipomoea batatas linneaus varieties) media. Based on the research results, Nutrien agar is small in size, from 0.1 cm to a yellow colour and round shape. In comparison, the white sweet potato (Ipomoea batatas linneaus variety) has a small size of 0.1 cm, milky white with a round shape. The results of the calculation of the otal plate number from the Nutrien agar medium was 1.6 X (104) CFU. In comparison, the total plate number from the white sweet potato (Ipomoea batatas linneaus variety) medium was 8.9 X (104) CFU. From the results of this study, it can be concluded that white sweet potato (Ipomoea batatas linneaus variety) can be used as an alternative medium for the growth of Staphylococcus aureus bacteria.
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Timsina, Jagadish. "Can Organic Sources of Nutrients Increase Crop Yields to Meet Global Food Demand?" Agronomy 8, no. 10 (October 3, 2018): 214. http://dx.doi.org/10.3390/agronomy8100214.
Meeting global demand of safe and healthy food for the ever-increasing population now and into the future is currently a crucial challenge. Increasing crop production by preserving environment and mitigating climate change should thus be the main goal of today’s agriculture. Conventional farming is characterized by use of high-yielding varieties, irrigation water, chemical fertilizers and synthetic pesticides to increase yields. However, due to either over- or misuse of chemical fertilizers or pesticides in many agro-ecosystems, such farming is often blamed for land degradation and environmental pollution and for adversely affecting the health of humans, plants, animals and aquatic ecosystems. Of all inputs required for increased agricultural production, nutrients are considered to be the most important ones. Organic farming, with use of organic sources of nutrients, is proposed as a sustainable strategy for producing safe, healthy and cheaper food and for restoring soil fertility and mitigating climate change. However, there are several myths and controversies surrounding the use of organic versus inorganic sources of nutrients. The objectives of this paper are: (i) to clarify some of the myths or misconceptions about organic versus inorganic sources of nutrients and (ii) to propose alternative solutions to increase on-farm biomass production for use as organic inputs for improving soil fertility and increasing crop yields. Common myths identified by this review include that organic materials/fertilizers can: (i) supply all required macro- and micro-nutrients for plants; (ii) improve physical, chemical and microbiological properties of soils; (iii) be applied universally on all soils; (iv) always produce quality products; (v) be cheaper and affordable; and (vi) build-up of large amount of soil organic matter. Other related myths are: “legumes can use entire amount of N2 fixed from atmosphere” and “bio-fertilizers increase nutrient content of soil.” Common myths regarding chemical fertilizers are that they: (i) are not easily available and affordable, (ii) degrade land, (iii) pollute environment and (iv) adversely affect health of humans, animals and agro-ecosystems. The review reveals that, except in some cases where higher yields (and higher profits) can be found from organic farming, their yields are generally 20–50% lower than that from conventional farming. The paper demonstrates that considering the current organic sources of nutrients in the developing countries, organic nutrients alone are not enough to increase crop yields to meet global food demand and that nutrients from inorganic and organic sources should preferably be applied at 75:25 ratio. The review identifies a new and alternative concept of Evergreen Agriculture (an extension of Agroforestry System), which has potential to supply organic nutrients in much higher amounts, improve on-farm soil fertility and meet nutrient demand of high-yielding crops, sequester carbon and mitigate greenhouse gas emissions, provide fodder for livestock and fuelwood for farmers and has potential to meet global food demand. Evergreen Agriculture has been widely adapted by tens of millions of farmers in several African countries and the review proposes for evaluation and scaling-up of such technology in Asian and Latin American countries too.
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Gomes Gradíssimo, Diana, Luciana Pereira Xavier, and Agenor Valadares Santos. "Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy." Molecules 25, no. 18 (September 22, 2020): 4331. http://dx.doi.org/10.3390/molecules25184331.
Conventional petrochemical plastics have become a serious environmental problem. Its unbridled use, especially in non-durable goods, has generated an accumulation of waste that is difficult to measure, threatening aquatic and terrestrial ecosystems. The replacement of these plastics with cleaner alternatives, such as polyhydroxyalkanoates (PHA), can only be achieved by cost reductions in the production of microbial bioplastics, in order to compete with the very low costs of fossil fuel plastics. The biggest costs are carbon sources and nutrients, which can be appeased with the use of photosynthetic organisms, such as cyanobacteria, that have a minimum requirement for nutrients, and also using agro-industrial waste, such as the livestock industry, which in turn benefits from the by-products of PHA biotechnological production, for example pigments and nutrients. Circular economy can help solve the current problems in the search for a sustainable production of bioplastic: reducing production costs, reusing waste, mitigating CO2, promoting bioremediation and making better use of cyanobacteria metabolites in different industries.
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TENNAKOON, N. A., and S. D. HEMAPALA BANDARA. "NUTRIENT CONTENT OF SOME LOCALLY AVAILABLE ORGANIC MATERIALS AND THEIR POTENTIAL AS ALTERNATIVE SOURCES OF NUTRIENTS FOR COCONUT." COCOS 15 (August 12, 2010): 23. http://dx.doi.org/10.4038/cocos.v15i0.2185.
Piovan, A., P. Brun, G. Peron, R. Filippini, S. Dall'Acqua, and R. Caniato. "Euglena gracilis as an alternative source of nutrients." Planta Medica 81, S 01 (December 14, 2016): S1—S381. http://dx.doi.org/10.1055/s-0036-1596847.
Shi, Jie, Qian Leng, Junying Zhu, Huiwang Gao, Xinyu Guo, and Xinyan Mao. "Influences of Nutrient Sources on the Alternation of Nutrient Limitations and Phytoplankton Community in Jiaozhou Bay, Southern Yellow Sea of China." Sustainability 12, no. 6 (March 12, 2020): 2224. http://dx.doi.org/10.3390/su12062224.
A marine ecosystem box model was developed to reproduce the seasonal variations nutrient concentrations and phytoplankton biomasses in Jiaozhou Bay (JZB) of China. Then, by removing each of the external sources of nutrients (river input, aquaculture, wastewater discharge, and atmospheric deposition) in the model calculation, we quantitatively estimated its influences on nutrient structure and the phytoplankton community. Removing the river input of nutrients enhanced silicate (SIL) limitation to diatoms (DIA) and decreased the ratio of DIA to flagellates (FLA); removing the aquaculture input of nutrients decreased FLA biomass because it provided less dissolved inorganic nitrogen (DIN) but more dissolved inorganic phosphate (DIP) as compared to the Redfield ratio; removing the wastewater input of nutrients changed the DIN concentration dramatically, but had a relatively weaker impact on the phytoplankton community than removing the aquaculture input; removing atmospheric deposition had a negligible influence on the model results. Based on these results, we suppose that the change in the external nutrients sources in the past several decades can explain the long-term variations in nutrient structure and phytoplankton community. Actually, the simulations for the 1960s, 1980s, and 2000s in JZB demonstrated the shift of limiting nutrients from DIP to SIL. A reasonable scenario for this is the decrease in riverine SIL and increase in DIP from aquaculture that has reduced DIA biomass, promoted the growth of FLA, and led to the miniaturization of the phytoplankton.
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Rodrigues, Marlon, Marcos Rafael Nanni, Carlos Augusto Posser Silveira, and Anderson Antonio da Silva Gualberto. "Mining coproducts as alternative sources of nutrients for the cultivation of sugarcane (Saccharum officinarum)." Journal of Cleaner Production 291 (April 2021): 125925. http://dx.doi.org/10.1016/j.jclepro.2021.125925.
Дисертації з теми "Alternative sources of nutrients":
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Kubisová, Petra. "Příprava přírodních doplňků stravy pro dětskou výživu." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-449743.
The presented diploma thesis is focused on complex characterization of chosen superfoods and subsequent composition of supplement suitable for children´s nutrition. Different kinds of superfoods were chosen for analyses, such as: barley grass (Hordeum vulgare), wheat grass (Triticum aestivum), moringa (Moringa oleifera), matcha tea (Camellia sinensis), microalgae chlorella (Chlorella pyrenoidosa), spirulina (Arthrospira platensis), flax seeds (Linum usitatissimum) and sesame seeds (Sesamum indicum). The theoretical part is focused on children´s nutrition issue and the most common food allergies and intolerances. Also, children food products legislation and characterization of chosen samples are included in theoretical part. Main macronutrients, such as saccharides, lipids and proteins, were analysed in the very beginning of experimental part. Fibre, fructan and -glucan, which have a high impact on intestinal microbiome and whole process of digestion, were analysed as well. However, barley grass was the best evaluated sample by containing 205,5 mg/g of insoluble fibre; 152,57 mg/g of fructans and 18,76 mg/g of -glucans. Finally, for complex nutritional profile, also samples pigments were analysed. Spectrophotometry, HPLC chromatography, gas chromatography and other analytical techniques were performed for experiments.
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Hobson, Lynsey. "Alternative sources of osteoprogenitor cells." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275006.
LeFrak, James T. (James Tucker) 1973. "Alternative sources of construction financing." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47559.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998. "January 1998." Includes bibliographical references (p. 87-89). by James T. LeFrak. M.S.
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Muskolus, Andreas. "Anthropogenic plant nutrients as fertiliser." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2008. http://dx.doi.org/10.18452/15774.
Nachhaltige Landbewirtschaftung impliziert ausgeglichene Pflanzennährstoffflüsse ohne die Abhängigkeit von Düngern aus nicht erneuerbaren Quellen. Stickstoff, Phosphor und Kalium aus der menschlichen Nahrung werden in Mitteleuropa im Allgemeinen in Schwemmkanalisationen gesammelt und dabei mit Schadstoffen vermengt. Neuartige stoffstromtrennende Sanitärsysteme ermöglichen die Bereitstellung von Humanurin und Fäkalien zur Verwendung als Düngemittel. In der vorliegenden Arbeit wurden praxisrelevante Aspekte der Verwendung von Düngemitteln anthropogener Herkunft untersucht. Die in Gefäß- und Feldversuchen in Berlin Dahlem ermittelte Ertragswirkung zeigte, dass Urin in dieser Hinsicht äquivalenten Mineraldüngern grundsätzlich gleichwertig ist. Bei sehr hohen Konzentrationen kam es abhängig von der Pflanzenart zu Depressionseffekten, welche vermutlich auf den Salz- und Ammoniumgehalt von Urin zurückzuführen sind. Unter Freilandbedingungen traten diese Effekte nicht auf. Bodenbiologische Auswirkungen von Düngerapplikationen sind entscheidend für die Abschätzung ihrer langfristigen Bodenfruchtbarkeitserhaltung. Sowohl in Labor-versuchen als auch im Freiland zeigten sich Regenwürmer durch menschlichen Urin aus Trenntoiletten deutlich beeinträchtigt. Die Ursache der Schädigung konnte nicht geklärt werden. Von einer langfristigen bodenfruchtbarkeitsreduzierenden Beein-trächtigung wird jedoch nicht ausgegangen. Mikrobielle Enzymaktivitäten im Boden wurden im Freiland durch Urinapplikation nicht beeinflusst. Für die Praxis wird empfohlen Urin während der Ausbringung einzuarbeiten, da die Tiere dann weniger mit der Flüssigkeit in Kontakt kommen. Da es ein umweltpolitisches Ziel ist, die Ammoniakemissionen der Landwirtschaft zu minimieren, wurden diese nach der Urinausbringung im Freiland gemessen. Auf Grund der sehr geringen Trockensubstanzgehalte von Humanurin emittierte deutlich weniger NH3 als üblicherweise nach Ausbringung von Schweine- oder Rindergülle. Verbraucherumfragen bestätigten eine hohe Bereitschaft pflanzliche Nahrung, welche mit Urin als Dünger erzeugt wurde, zu kaufen und zu verzehren. Praktizierende Landwirte reagierten dagegen deutlich reservierter. Die Ausbringung von Urin aus Trenntoiletten kann im Sinne einer nachhaltigen Landwirtschaft grundsätzlich empfohlen werden. Es besteht aber weiterer Forschungsbedarf. Sustainable agriculture implies balanced nutrient flows and independence from fertiliser made from non renewable resources. In Europe, plant nutrients excreted by humans are commonly collected in water borne sewage systems and thus mixed with potentially harmful substances. Novel segregating sanitation techniques can collect separated urine and faeces in a form which enables their use as fertiliser. In the presented thesis selected aspects concerning the use of anthropogenic plant nutrients relevant to farming were investigated. Pot and field experiments indicated that equal yields can be gained if urine instead of mineral fertiliser is applied. Very high concentrations of urine led to reduced growth, presumably caused by the presence of ammonium or salt. However, this was not found under field conditions. Soil biological effects caused by the application of a fertiliser must be considered when assessing its long term contribution to soil fertility. Laboratory experiments as well as field investigations showed that human urine application severely affects earthworms, however, the harmful components were not identified. The results suggest that the effect is of short term only. Soil microbial enzyme activities were not influenced by urine fertiliser. For farming practice it is recommended to inject or incorporate urine to prevent earthworms from coming into direct contact with the infiltrating fertiliser. Gaseous ammonia loss was measured after urine application on fields as reducing harmful emissions from agriculture is a goal of European environmental policy. Because of the very low Dry Matter contents of urine, far less ammonia was emitted to the atmosphere than usually occurs after application of cattle or pig slurry. A consumer acceptance study showed a general high public willingness to accept urine as fertiliser even if used on crops for food production. The reaction of farmers was mainly reserved as a result of the present legal regulations in Germany. Within the context of sustainable agriculture the use of human urine as fertiliser can be recommended. Further research is necessary, especially concerning any effects resulting from residues of pharmaceutical substances contained in human excreta.
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Isenberg, William. "Sources and Fates of Nutrients in the Tidal, Freshwater James River." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2686.
Tidal freshwater reaches of estuaries may play an important role in mitigating nutrient fluxes from watersheds to the coastal zone due to their location at the interface between riverine and estuarine systems. We developed annual N and P budgets for the tidal, freshwater James River over 4 calendar years (2007-2010) taking into account riverine inputs at the Fall Line, local points sources (including CSO events), ungagued inputs, riverine outputs, and tidal exchange. The tidal freshwater James River experiences high areal loading rates of TN (383 mg/m2/d) and TP (70 mg/m2/d) due to the combined effects of large watershed area and local point source discharges. On an annual basis, riverine sources dominated TN and TP inputs (59% and 84%, respectively), whereas during low discharge summer months (May-Oct) point sources were more important. Proportional retention of TP inputs (59±7%) was greater than TN retention (27±4%) with annual absolute retention being 1,800±350 kg TP/d, and 5,900±2,700 kg TN/d. Proportional retention of TN and dissolved inorganic fractions of N and P was highest during the low discharge summer months due to reduced loading rates and increased residence times and biotic activity. TP retention was greatest during high discharge winter months (Nov-Apr) when loading rates were highest. High retention during this period of low biotic activity suggests that trapping of riverine derived particulate-bound P via sedimentation was an important mechanism of P retention. Understanding this seasonal variation in nutrient inputs and retention can help to inform management decisions regarding reducing nutrient inputs to the Chesapeake Bay and improving local water quality.
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Qiu, Jun. "Corporate financial decisions : alternative sources and uses." Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=26102.
Dannemiller, Amy Beth. "Most common sources of specific nutrients in adolescents by current weight status." Connect to resource, 2008. http://hdl.handle.net/1811/32080.
Aló, Raquel Moreira. "Effects of alternative-food sources on operant behavior." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5810.
Thesis (Ph. D.)--West Virginia University, 2008. Title from document title page. Document formatted into pages; contains viii, 68 p. : ill. Includes abstract. Includes bibliographical references (p. 66-68).
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Ignatovski, Stefan. "Sources of Financial Education and Use of Alternative Financial Services." ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/6794.
As the lending practices of the alternative financial services (AFS) industry harm many consumers and consumers' access and use of traditional credit are restricted, the use of AFS is a growing concern. The financial education of consumers determines their financial behavior, which may be inadequate to make effective financial decisions regarding high-cost borrowings. The purpose of this quantitative study was to examine if and to what extent the sources of financial education is related to the use and frequency of use of AFSs among U.S. consumers. The theory of planned behavior and the transtheoretical model of change shaped the theoretical framework for this study. An explanatory correlational design was used to analyze archival data collected by the FINRA Investor Education Foundation for their 2015 National Financial Capability Study. Binary logistic and negative binomial regression analyses indicated that exposure to formal financial education did not contribute to reduced use and lower frequency of use of AFSs but, instead, contributed to the exact opposite. Only parental financial education was found to contribute to reduced use and lower frequency of use of AFSs. One-way ANOVA analyses indicated that all forms of financial education contributed to increased perceived financial knowledge. This study may lead to positive social change by informing policymakers about the necessary steps to remedy the problem of continuous AFS usage and serving as a foundation for future studies that should consider other factors beyond formal financial education that could influence the use and frequency of use of AFSs.
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Adams, Zachry Clay Adams James F. "Comparison of broiler litter, broiler litter ash with reagent grade materials as sources of plant nutrients." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/ADAMS_ZACHRY_50.pdf.
Hogbin, Myrtle. Good sources of nutrients. Washington, D.C.]: U.S. Dept. of Agriculture, Human Nutrition Information Service, Nutrition Monitoring Div., 1989.
Michaelides, Efstathios E. Alternative Energy Sources. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-20951-2.
Miami International Conference on Alternative Energy Sources (7th 1985 Miami Beach, Fla.). Alternative energy sources VII. Washington: Hemisphere Pub. Corp., 1987.
Nishri, Ami, and Edit Leibovici. "External Sources of Nutrients." In Lake Kinneret, 329–46. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8944-8_19.
Power, J. F., and R. I. Papendick. "Organic Sources of Nutrients." In Fertilizer Technology and Use, 503–20. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/1985.fertilizertechnology.c14.
Bartlett, Stephen, Mary Marian, Douglas Taren, and Myra L. Muramoto. "Food Sources of Nutrients." In Geriatric, 145–60. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-6912-7_8.
Sigua, Gilbert C. "Recycling Biosolids and Lake-Dredged Materials to Pasture-based Animal Agriculture: Alternative Nutrient Sources for Forage Productivity and Sustainability: A Review." In Sustainable Agriculture, 495–517. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2666-8_31.
Barreira, João C. M., M. Beatriz P. P. Oliveira, and Isabel C. F. R. Ferreira. "Nuts as Sources of Nutrients." In Wild Plants, Mushrooms and Nuts, 411–30. Chichester, UK: John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118944653.ch12.
Adepoju, Oladejo Thomas. "Nutrient Composition of Termites." In African Edible Insects As Alternative Source of Food, Oil, Protein and Bioactive Components, 281–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-32952-5_21.
Mariod, Abdalbasit Adam. "Nutrient Composition of Mealworm (Tenebrio molitor)." In African Edible Insects As Alternative Source of Food, Oil, Protein and Bioactive Components, 275–80. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-32952-5_20.
García, María J. "China’s Alternative Energy Sources." In Energy Security and Sustainable Economic Growth in China, 152–69. London: Palgrave Macmillan UK, 2014. http://dx.doi.org/10.1057/9781137372055_7.
Brown, Charles E. "Advanced Alternative Energy Sources." In World Energy Resources, 179–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56342-3_11.
Тези доповідей конференцій з теми "Alternative sources of nutrients":
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Dalgamouni, Tasneem atef, Shatha Kanji, Maroua Cherif, Rihab Rasheed, Touria Bounnit, Hareb Aljabri, Imen Saadaoui, and Radhouane Ben Hamadou. "Isolation, Cultivation, and Characterization of Novel Local Marine Micro-Algae for Aquaculture Feed Supplement Production." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0037.
Aquaculture is considered as a promising alternative to support the food demands of the everincreasing population. Currently, this sector faces several challenges such as using fishmeal, which is unsustainable and expensive. Therefore, it is necessary to identify an alternative feed component that is sustainable, cost-effective and can provide the essential nutrients required by the fish. In this context, microalgae are considered as a viable source of proteins, lipids, polysaccharides and highvalue products (HVPs) such as essential fatty acids, amino acids and vitamins. They play a vital role in the marine food chain and hence can be easily assimilated by the fish. The current research targeted the isolation, identification and characterization of novel marine microalgae from Qatar coastline to produce aquaculture feed supplement. As the climate poses a number of stress factors, such as high light intensities, temperatures and varying salinities, it is expected that novel microalgae with interesting metabolite profiles can be isolated from the environment for developing aquaculture sector in Qatar. Standard plating methods were used to isolate halophilic strains from field waters. PCR-sequencing was used to identify the novel microalgae, cyanobacteria and diatom isolates. Then a comparative analysis of the growth performance and metabolite content was performed to characterize these strains. Results evidenced that the cyanobacteria strain exhibited the highest biomass productivity of 51.4 mg L-1day-1 whereas the highest lipid content was observed in the novel diatom isolate ranging up to 28.62% and the highest amount of carotenoids was detected in the case of the microalgae. As in conclusion, a rich feed supplement blending the three isolates can be considered as an alternative to fishmeal. As a continuation of this research, the potential strains will be cultivated under various stress to increase their nutritional value.
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Farrell, Megan J., Eric S. Comeau, and Robert L. Mauck. "Dynamic Culture Improves Mechanical Functionality of MSC-Laden Tissue Engineered Constructs in a Depth-Dependent Manner." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53442.
Limitations associated with the use of autologous chondrocytes (CH) for cartilage tissue engineering beget the need for alternative cell sources. Mesenchymal stem cells (MSC) are clinically attractive due to their ability to undergo chondrogenesis in three-dimensional culture [1,2]; however, when compared to CH, MSC fail to develop functional equivalence [2,3]. We have previously shown a marked depth-dependence in local equilibrium modulus of MSC-laden gels, with the superficial zones (where maximal media exchange occurs) considerably stiffer than regions removed from nutrient supply (center and bottom of construct); less dramatic depth-dependence was observed in CH-laden gels [4]. Similarly, other studies have shown depth-dependent properties in CH-laden gels with the construct edge generally stiffer than the center [5]. Given this apparent influence of nutrient supply, the objective of the current study was to assess the impact of dynamic culture (via orbital shaking) on the development of depth-dependent mechanical properties in both MSC and CH-laden hydrogels. Furthermore, we assessed cell viability and matrix content throughout the construct depth to determine the mechanism by which this depth-dependency arises. We hypothesized that improved nutrient transport would reduce construct inhomogeneity (particularly for MSC-laden constructs) and improve bulk mechanical properties.
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Donovan, Sean, and Nick Feamster. "Alternative Trust Sources." In SIGCOMM '15: ACM SIGCOMM 2015 Conference. New York, NY, USA: ACM, 2015. http://dx.doi.org/10.1145/2785956.2790001.
Konyukhov, V. Y. "Investment In Alternative Energy Sources." In RPTSS 2018 - International Conference on Research Paradigms Transformation in Social Sciences. Cognitive-Crcs, 2018. http://dx.doi.org/10.15405/epsbs.2018.12.137.
"Session VIII Alternative energy sources." In 2008 11th IEEE International Power Electronics Congress. IEEE, 2008. http://dx.doi.org/10.1109/ciep.2008.4653835.
"Session 23: Alternative energy sources." In INTELEC 07 - 29th International Telecommunications Energy Conference. IEEE, 2007. http://dx.doi.org/10.1109/intlec.2007.4448811.
"Session 24: Alternative energy sources." In INTELEC 07 - 29th International Telecommunications Energy Conference. IEEE, 2007. http://dx.doi.org/10.1109/intlec.2007.4448815.
"Session 31: Alternative energy sources." In INTELEC 07 - 29th International Telecommunications Energy Conference. IEEE, 2007. http://dx.doi.org/10.1109/intlec.2007.4448839.
Chang, Ni-Bin, Martin Wanielista, and Andrew O'Reilly. "Use of Alternative Sorption Media for Removing Nutrients Associated with Stormwater BMPs." In World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)18.
Rahman, Abdul, Ermatita, and Dedik Budianta. "Data Warehouse Design for Soil Nutrients with IoT Based Data Sources." In 2019 International Conference on Informatics, Multimedia, Cyber and Information System (ICIMCIS). IEEE, 2019. http://dx.doi.org/10.1109/icimcis48181.2019.8985209.
Звіти організацій з теми "Alternative sources of nutrients":
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Voyles, Reggie, and Mark S. Honeyman. Absorbency of Alternative Livestock Bedding Sources. Ames (Iowa): Iowa State University, January 2006. http://dx.doi.org/10.31274/ans_air-180814-102.
Voyles, Reggie, and Mark S. Honeyman. Absorbency of Alternative Livestock Bedding Sources. Ames: Iowa State University, Digital Repository, 2006. http://dx.doi.org/10.31274/farmprogressreports-180814-1026.
Neff, Ben, Nathan Wright, Reagan Rieken, Reece Sharp, Spencer Shalla, Joseph R. Vanstrom, and Jacek A. Koziel. Alternative Sources of Accurate Agricultural Topography. Ames: Iowa State University, Digital Repository, April 2018. http://dx.doi.org/10.31274/tsm416-180814-25.
Skone, Timothy J., James Littlefield, Robert Eckard, Greg Cooney, and Joe Marriott. Role of Alternative Energy Sources: Geothermal Technology Assessment. Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1515239.
Skone, Timothy J., James Littlefield, Robert Eckard, Greg Cooney, and Joe Marriott. Role of Alternative Energy Sources: Hydropower Technology Assessment. Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1515240.
Skone, Timothy J., James Littlefield, Robert Eckard, Greg Cooney, Marija Prica, and Joe Marriott. Role of Alternative Energy Sources: Wind Technology Assessment. Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1515243.
Skone, Timothy J., Greg Cooney, James Littlefield, Joe Marriott, G. Neil Midkiff, Barbara McKinnon, Roxanne Bromiley, Robert Eckard, and Maura Nippert. Role of Alternative Energy Sources: Nuclear Technology Assessment. Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1515246.
Arnett, Clint, Justin Lange, Ashley Boyd, Martin Page, and Donald Cropek. Expression and secretion of active Moringa oleifera coagulant protein in Bacillus subtilis. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41546.
Cationic polypeptide proteins found in the seeds of the tropical plant Moringa oleifera have coagulation efficiencies similar to aluminum and ferric sulfates without their recalcitrant nature. Although these proteins possess great potential to augment or replace traditional coagulants in water treatment, harvesting active protein from seeds is laborious and not cost-effective. Here, we describe an alternative method to express and secrete active M. oleifera coagulant protein (MO) in Bacillus subtilis. A plasmid library containing the MO gene and 173 different types of secretory signal peptides was created and cloned into B. subtilis strain RIK1285. Fourteen of 440 clones screened were capable of secreting MO with yields ranging from 55 to 122 mg/L of growth medium. The coagulant activity of the highest MO secreting clone was evaluated when grown on Luria broth, and cell-free medium from the culture was shown to reduce turbidity in a buffered kaolin suspension by approximately 90% compared with controls without the MO gene. The clone was also capable of secreting active MO when grown on a defined synthetic wastewater supplemented with 0.5% tryptone. Cell-free medium from the strain harboring the MO gene demonstrated more than a 2-fold reduction in turbidity compared with controls. Additionally, no significant amount of MO was observed without the addition of the synthetic wastewater, suggesting that it served as a source of nutrients for the effective expression and translocation of MO into the medium.
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Skone, Timothy J., James Littlefield, Robert Eckard, Greg Cooney, and Joe Marriott. Role of Alternative Energy Sources: Natural Gas Technology Assessment. Office of Scientific and Technical Information (OSTI), June 2012. http://dx.doi.org/10.2172/1515241.
Skone, Timothy J. Role of Alternative Energy Sources: Nuclear Technology Assessment (Presentation). Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1524437.
