Journal articles on the topic 'Media combinations'
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Charalabidis, Yannis, Euripidis Loukis, and Aggeliki Androutsopoulou. "Fostering Social Innovation through Multiple Social Media Combinations." Information Systems Management 31, no. 3 (July 3, 2014): 225–39. http://dx.doi.org/10.1080/10580530.2014.923267.
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Kalugina, Ol’ga Anatol’evna. "ENGLISH-LANGUAGE IDIOMATIC COMBINATIONS IN THE ECONOMIC MEDIA DISCOURSE." Philological Sciences. Issues of Theory and Practice, no. 12-3 (December 2018): 525–29. http://dx.doi.org/10.30853/filnauki.2018-12-3.21.
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Dian Cita Sari, Fahri Zalmi, and Akhyak. "Produktivitas Media Pembelajaran Daring dalam Manajemen Pendidikan." Jurnal Prajaiswara 3, no. 1 (June 13, 2022): 1–7. http://dx.doi.org/10.55351/jp.v3i1.38.
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Introduction/Main Objectives The productivity of online learning media for the implementation of learning has increased intensely since the implementation of the corona lockdown. This presents a challenge to improve learning by developing media so that students have more time to study independently during the lockdown period.: Background Problems Researchers compared the productivity of various learning media such as text, video, and video-text combinations.: Novelty: Statistical analysis using Mann Whitney showed that there were significant differences in knowledge retention between the text and video groups as well as between the video and text-video combination groups. Research Methods: This study was conducted using a quasi-experimental post-test method by comparing participants' retention before the intervention. Finding/Results: The study involved 60 participants who were randomly divided into 3 groups, text (guidebook), audiovisual (video), and text-video combination. Video and text prepared by Widyaiswara. The results showed that the average scores were 35.1 (text group), 58.1 (video group), and 85.2 (text-video combination group). Conclusion: use of multimedia can increase knowledge retention in the absorption of the material.
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Chen, Jun Min. "Comparative Experiment Study on the Total Phosphorus Removal Efficiency of Different Infiltration Media Combinations in the CRI System." Advanced Materials Research 415-417 (December 2011): 1735–39. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.1735.
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The total phosphorus removal efficiency is very low and the TP concentration of the effluent can not reach the national standard of GB18918-2002 in CRI system. In order to solve these problems, a series of comparative experiments on phosphorus adsorption capacity of 5 kinds of special infiltration media are carried out. And then another series of comparative experiments on the total phosphorus removal efficiency of 4 kinds of infiltration media combinations are also conducted, the experimental results show that the phosphorus adsorption capacity of sponge iron is the best one among the special infiltration media selected；the phosphorus removal efficiency of the infiltration media including 1/6 sponge iron is much better than the infiltration media including only sand; and the phosphorus removal efficiency of the infiltration media combination with sponge iron homogeneously mixed with sand, is better than the infiltration media combination with the same weight of sponge iron concentrated. The experimental results will help to explore the development of the new type composite infiltration media of the CRI System.
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Mahdieh, Majid, Mitra Noori, and Simin Hoseinkhani. "Establishment of In vitro Adventitious Root Cultures and Analysis of Flavonoids in Rumex crispus." Plant Tissue Culture and Biotechnology 25, no. 1 (July 9, 2015): 63–70. http://dx.doi.org/10.3329/ptcb.v25i1.24126.
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Adventitious root culture of leaf explants of R. crispus was established using different MS supplemented with different concentrations of auxins and a combination of NAA and Kn for growth and flavonoids production. Among the different auxins, NAA was more effective than IAA to induce adventitious roots. Adventitious roots grown on MS containing 5 ?M NAA and 0.5 ?M Kn showed the highest root growth, as well as the highest amount of total flavonoids (= 6) as compared with roots grown in other media. Chromatographic purification of the root extract showed that flavonoid composition also was influenced by hormone combinations in the culture media. The addition of Kn to the medium reduced or suppressed myricetin (M) and naringenin (N) production. Quercetin (Q) was not found in media containing Kn alone similar to the control medium. Isorhamnetin (I), kaempferol (K) and rutin (R) were produced in the roots on media supplemented with all hormone combinations, but were absent in 0.1 ?M Kn supplemented media similar to the control roots.Plant Tissue Cult. & Biotech. 25(1): 63-70, 2015 (June)
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Atwood, Stanley T., Thomas J. Sheets, Turner B. Sutton, and Ross B. Leidy. "Stability of selected pesticide formulations and combinations in aqueous media." Journal of Agricultural and Food Chemistry 35, no. 2 (March 1987): 169–72. http://dx.doi.org/10.1021/jf00074a001.
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Dian Cita Sari, Fahri Zalmi, and Akhyak. "Productivity of Online Learning Media in Education Management." Jurnal Prajaiswara 3, no. 1 (June 13, 2022): 1–8. http://dx.doi.org/10.55351/prajaiswara.v3i1.38.
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Introduction/Main Objectives The productivity of online learning media for the implementation of learning has increased intensely since the implementation of the corona lockdown. This presents a challenge to improve learning by developing media so that students have more time to study independently during the lockdown period.: Background Problems Researchers compared the productivity of various learning media such as text, video, and video-text combinations.: Novelty: Statistical analysis using Mann Whitney showed that there were significant differences in knowledge retention between the text and video groups as well as between the video and text-video combination groups. Research Methods: This study was conducted using a quasi-experimental post-test method by comparing participants' retention before the intervention. Finding/Results: The study involved 60 participants who were randomly divided into 3 groups, text (guidebook), audiovisual (video), and text-video combination. Video and text prepared by Widyaiswara. The results showed that the average scores were 35.1 (text group), 58.1 (video group), and 85.2 (text-video combination group). Conclusion: use of multimedia can increase knowledge retention in the absorption of the material.
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Oktatora, Emilia, Rujito Agus Suwignyo, Mery Hasmeda, and Rosa Damayanti. "MORPHOLOGICAL CHARACTERISTICS OF RICE VARIETIES ON IRON STRESS IN NUTRIENT CULTURE MEDIA." BIOVALENTIA: Biological Research Journal 7, no. 1 (July 4, 2021): 32–38. http://dx.doi.org/10.24233/biov.7.1.2021.214.
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Decreased rice productivity due to high iron concentrations especially in the vegetative phase, this causes the morphological character of rice to be affected until the metabolic process is disrupted. This study used 6 varieties, namely Batu Tegi, Inpara 9, Situ Patenggang, Inpara 8, Hawarabunar and Inpago 8, with iron concentrations of 0 and 250 ppm. The seeds were germinated for 3 days, then planted in Kimura B 10% nutrient culture media for 9 days, for 2 weeks then each week the media was changed to 100% Kimura B solution with the addition of 250 ppm iron concentration which was sampled every week until the 35th day. The results of the analysis of variance of the variables of plant height and root length showed that the combination Inpara 8-01 was the best combination and had a significant effect compared to other combinations with an average value of 61.31 cm and 30.77 cm. In the variable number of leaves the best average value was found in the combination of Batu Tegi-01 and Inpara 9-01 which had a significant effect compared to other treatments with an average value of 5.87 strands and 9.60 strands, respectively. On the stem dry weight variable, the combination of Hawarabunar-250 ppm Fe had a significant effect on other treatment combinations with the highest value of 0.17 g and the lowest value of treatment combination Inpara 9-250 ppm with a value of 0.08 g. Based on the results of treatment with 250 ppm Fe stress on plant morphological characters, the Hawarabunar variety had the best response in tolerating Fe stress, while the Batu Tegi variety was the lowest in tolerating Fe stress.
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Kristensen, Sebastian Birkedal, Tobias Bruun Pedersen, Mikkel Rank Nielsen, Reinhard Wimmer, Jens Muff, and Jens Laurids Sørensen. "Production and Selectivity of Key Fusarubins from Fusarium solani due to Media Composition." Toxins 13, no. 6 (May 25, 2021): 376. http://dx.doi.org/10.3390/toxins13060376.
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Natural products display a large structural variation and different uses within a broad spectrum of industries. In this study, we investigate the influence of carbohydrates and nitrogen sources on the production and selectivity of production of four different polyketides produced by Fusarium solani, fusarubin, javanicin, bostrycoidin and anhydrofusarubin. We introduce four different carbohydrates and two types of nitrogen sources. Hereafter, a full factorial design was applied using combinations of three levels of sucrose and three levels of the two types of nitrogen. Each combination displayed different selectivity and production yields for all the compounds of interest. Response surface design was utilized to investigate possible maximum yields for the surrounding combinations of media. It was also shown that the maximum yields were not always the ones illustrating high selectivity, which is an important factor for making purification steps easier. We visualized the production over time for one of the media types, illustrating high yields and selectivity.
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Safitry, Meilya Ramadhiana, and Juang Gema Kartika. "Pertumbuhan dan Produksi Buncis Tegak (Phaseolus vulgaris) pada beberapa Kombinasi Media Tanam Organik." Buletin Agrohorti 1, no. 1 (January 11, 2013): 94. http://dx.doi.org/10.29244/agrob.1.1.94-103.
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<p style="text-align: justify;">Media selection is one of important factor for the growth and production of erected kidney bean (Phaseolus vulgarisL.). Utilization the waste media of white oyster mushroom (Pleurotus ostreatus) and waste media of paddy straw mushroom (Volvariella volvaceae), cow manure, and rice husk as plant growth media for kidney bean can be used for optimizing the utilization of local resources and minimizing environmental damage as well as to support the codification of GAP (Good Agricultural Practices) of kidney bean. The research was done from February until October 2011 in experiment field at Leuwikopo, IPB, Bogor. The experiment consisted of one factor and arranged in Randomized Complete Design with thirteen combinations from five kinds of <br />organic media component, they were soil, waste media of white oyster mushroom, waste media of paddy straw mushroom, cow manure, and rice husk with 1:1 ratio (v/v). The kidney bean showed good responses to the combination media treatment of cow manure, combination of soil and waste media of paddy straw mushroom, combination of soil, waste media of paddy straw mushroom, and cow manure, and combination of soil, waste media of paddy straw mushroom, cow manure, and rice husk. How ever the best result of kidney bean production was given from waste media of paddy straw mushroom treatment.</p><p>Keyword: erected kidney bean, plant growth media, waste media of paddy straw mushroom, co w manure</p>
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Mascorro, Joe A., and Gerald S. Kirby. "Designing multi-viscosity embedding media utilizing novel resin/anhydride/catalyst combinations." Microscopy Research and Technique 20, no. 1 (January 1, 1992): 105–6. http://dx.doi.org/10.1002/jemt.1070200113.
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Miclea, Ileana, and Marius Zahan. "Combinations of Trolox and ascorbic acid have a beneficial effect on in vitro maturation of pig oocytes." Czech Journal of Animal Science 66, No. 9 (September 1, 2021): 359–67. http://dx.doi.org/10.17221/253/2020-cjas.
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Abstract: The poor in vitro development of pig oocytes and embryos has been blamed on oxidative stress. We sought to find out if combinations of Trolox (T), a synthetic and cell-permeable derivative of vitamin E, and ascorbic acid (AA) could improve the maturation rates of in vitro cultured pig oocytes. Pig oocytes underwent maturation for 44–45 h in medium M 199 supplemented with 0 μM T + 0 μM AA, 100 μM T + 250 μM AA, 300 μM T + 250 μM AA, 100 μM T + 750 μM AA or 300 μM T + 750 μM AA. These combinations were chosen based on previous research conducted in our laboratory and on the available literature. After maturation, several parameters were assessed: cumulus oophorus expansion, oocyte viability (based on the presence of metabolic activity versus membrane damage), extrusion of the first polar body, mitochondrial membrane potential (MMP), pronucleus formation, and embryo development after fertilization. All antioxidant combinations significantly improved cumulus expansion and formation of the first polar body. The best was 300 μM T + 250 μM AA for the first characteristic and 300 μM T + 750 μM AA for the second. Antioxidant presence in the maturation media increased the percentages of viable oocytes but not significantly. MMP was not significantly modified by the addition of antioxidant combinations. We also found that a low concentration of T (100 µM) mixed with a high concentration of AA (750 µM) in the oocyte maturation media led to significantly higher rates of both female and male pronuclei formation and also enhanced embryo development to the morula stage. Therefore, we recommend this combination to improve the in vitro maturation media of pig oocytes.
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Horst, Sven-Ove, and Paul Clemens Murschetz. "Strategic Media Entrepreneurship." Journal of Media Management and Entrepreneurship 1, no. 1 (January 2019): 1–26. http://dx.doi.org/10.4018/jmme.2019010101.
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Entrepreneurship and strategy enable media organizations to create new ideas and bring them to the market. However, despite their practical importance, synergistic combinations of these theories are currently under-investigated. Therefore, the objective of this paper is to theoretically explore the phenomenon of strategic media entrepreneurship and lay the foundations for further investigation and theory development. The paper highlights a convergence of strategy and entrepreneurship and shows how they add to organizational success through developing visions, exploring and exploiting opportunities, managing people, building networks, driving creativity, and facilitating strategic planning. Ultimately, the paper contributes by uncovering and reflecting on the assumptions of current theoretical approaches in strategic media management and media entrepreneurship through targeted problematization. This provides the basis for opening new discussions, generating new theories, and exploring emerging phenomena around strategic media entrepreneurship.
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Coccetti, Silvano, and Roberto Viscardi. "Horizontal&Vertical Deflection Combinations for Monitors." IEEE Transactions on Consumer Electronics CE-31, no. 3 (August 1985): 211–25. http://dx.doi.org/10.1109/tce.1985.289932.
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Kim, Yeon Ju, Yeon-Dong Kim, Hyungtae Kim, Dong Ji Ahn, Ha-Jung Kim, Won Uk Koh, and Young-Jin Ro. "Interaction between Dexamethasone, Ropivacaine, and Contrast Media Used in Interventional Pain Treatment: Considerations in Safety." Medicina 58, no. 12 (December 19, 2022): 1871. http://dx.doi.org/10.3390/medicina58121871.
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Background and Objectives: Although epidural steroid injections are used as an effective treatment, this technique is associated with rare but serious ischemic complications, especially when particulate steroids are used. However, recent studies have reported that even if non-particulate steroids are used, particulates are formed by the interaction with some local anesthetics (LA), causing ischemic complications. This observational study evaluated commonly used combinations of non-particulate steroids and LA with contrast media via microscopic analysis and analyzed the chemical properties of each mixture to identify the correlation of particulate formation. Materials and Methods: Commonly used clinical non-particulate and particulate steroids, contrast media, and LA agent combinations were evaluated macroscopically and microscopically. The pH values were also measured at both room temperature (26 °C) and body temperature (36 °C). Where particulates were observed, the particulate size was measured. Results: Macroscopically, the mixture of non-particulate steroid and ropivacaine had a slightly cloudy appearance at all concentrations, but there was no visible particulate. However, when observed under a microscope, the pH-dependent particulate formation was observed at all concentration combinations tested. (0.1% ropivacaine: from 19 μm to 70 μm, and 0.2% ropivacaine: from 37 μm to 108 μm at room temperature (26 °C)). When contrast media was mixed or the temperature was raised to body temperature (36 °C), the number and size of the particulates decreased or dissolved. Conclusions: The combination of ropivacaine and dexamethasone, a non-particulate steroid, mainly used in epidural injections, forms particulates. However, when mixed with contrast media, particulates are dissolved because of changes in pH and factors affecting particulate formation. In fluoroscopy-guided injections, the use of contrast media could resolve particulate formation.
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Nkere, Chukwuemeka, and Egbichi Mbanaso. "Optimizing concentrations of growth regulators for in-vitro ginger propagation." Journal of Agrobiology 27, no. 2 (December 1, 2010): 61–65. http://dx.doi.org/10.2478/s10146-009-0009-9.
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Optimizing concentrations of growth regulators for in-vitro ginger propagationThe study evaluates the performance of ginger in media containing different concentrations of growth regulators. Twenty-eight different treatment combinations of benzylaminopurine (BAP) and naphthalene acetic acid (NAA) incorporated into Murashige and Skoog (MS) medium were evaluated for optimal media composition for ginger micropropagation. The combination of 0.05 mgl-1 NAA and 4.0 mgl-1 BAP gave the highest shoot regeneration rate of 4.25. However, this did not differ significantly (p>0.05) from the result (3.38) from 0.05 mgl-1 NAA and 1.0 mgl-1 BAP. Considering the performance of the shoot tip explants in media and the need to lower the cost of micropropagation, the latter combination (0.05 mgl-1 NAA and 1.0 mgl-1 BAP) with 80 percent explant survival, gave an appropriate concentration of growth regulators in media composition for ginger propagation. This combination also supported root development, and perhaps would eliminate the stage of in vitro rooting.
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Parray, Javid A., Azra N. Kamili, Sumira Jan, Mohammad Yaseen Mir, Nowsheen Shameem, Bashir A. Ganai, Elsayed Fathi Abd_Allah, Abeer Hashem, and Abdulaziz A. Alqarawi. "Manipulation of Plant Growth Regulators on Phytochemical Constituents and DNA Protection Potential of the Medicinal Plant Arnebia benthamii." BioMed Research International 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/6870139.
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Arnebia benthamii of the family Boraginaceae is a critically endangered nonendemic plant of the Kashmir Himalayas and is used to treat a number of human diseases. The current study was based on developing an in vitro micropropagation protocol vis-à-vis induction of various secondary metabolites under in vitro conditions for the possible biological activity. A tissue culture protocol was developed for A. benthamii for the first time in the Himalayan region using varied combinations and proper media formulations, including various adjuvants: Murashige and Skoog (MS) media, growth hormones, sugars, agar, and so forth. The influence of different media combinations was estimated, and the MS + thidiazuron (TDZ) + indole 3-acetic acid (IAA) combination favors a higher regeneration potential. The higher amounts of chemical constituents were also recorded on the same treatment. The in vitro plant samples also showed a noteworthy effect of scavenging of hydroxyl radicals vis-à-vis protection from oxidative DNA damage. The in vitro raised plants are good candidates for the development of antioxidant molecules.
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Nemec, S. "Glomus intraradix effects on citrus rootstock seedling growth in various potting media." Journal of Agricultural Science 118, no. 3 (June 1992): 315–23. http://dx.doi.org/10.1017/s0021859600070684.
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SUMMARYFive potting media components mixed in various combinations and in various percentages of one with another (0, 14·3, 29, 42, 57, 71 and 100% by volume of the second component with the first) were inoculated with Glomus intraradix in six experiments. Seedlings of citrus rootstocks were grown from seed in these mixes. Sour orange in inoculated peat plus vermiculite, Astatula fine sand plus vermiculite, and peat plus Perlite® in all percentage combinations grew c. two- to threefold taller than noninoculated control plants. Up to twofold growth increases of sour orange occurred in vermiculite amended with wood shavings. The best evidence for fungus-mediated plant growth occurred in Astatula fine sand amended with 29–71% Perlite, and the roots in that combination had the highest percentage of infection. In another experiment in which Astatula fine sand was amended with up to 16% of an acid peat, ratios of inoculated rough lemon plant growth to controls decreased as the peat content in the medium increased. Top and root weight ratios of inoculated:control seedlings in the six experiments did not fit four simple linear models.
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Susilaningsih, Dwi, Tami Astie Uhtiza, and Khairul Anam. "SUBSTITUTION COMPONENT CULTIVATION MEDIA OF PHOTO-FERMENTATION PROCESS FOR LOW COST HYDROGEN GAS BIOPRODUCTION." Teknologi Indonesia 40, no. 2 (April 10, 2018): 108. http://dx.doi.org/10.14203/jti.v40i2.378.
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Employing the Rhodobium marinum bacteria as an agent of hydrogen bioproduction with facultative fermentation condition needs two steps of cultivations, i.e., pre-culture and hydrogen production periods with different media. The two steps cultivation is important state for hydrogen gas production rate. ASY (Ammonium, Succinate, and Yeast extract) is usually used as standard medium in biohydrogen production and mostly the component is analytical grade of chemicals. Series of cultivation media substitution by combining ASY with other cost-effective chemicals were investigated. The total of sixteen combinations of media were observed (P0-P15). Cultivation condition of R. marinum was set in an illuminated light of 31.17 µmol s-1m-2photon and agitated in shaker of 120 rpm for nine days. The experiment was designed as random selection with anova analyses. The results exhibited that P7 medium combination released the highest hydrogen gas of 61.29±0.52 ml/80 ml media among the others combination media. Using one-way ANOVA, there was a statistically significant difference between the mean number and condition and it was found P7 was significantly different with the others combination media, except P7 was insignificantly different with P3 only. Overall, the combination media is cheaper than the ASY medium. The ASY medium price is about USD 677, and the substitution media prices were ranging from USD 4.24 to USD 613.47. However, the further research on optimisation cultivation condition is needed.
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Barmar, M., and B. Kaffashi. "Rheological Behavior of HEUR Mixtures in Aqueous Media." International Polymer Processing 22, no. 2 (April 1, 2007): 146–50. http://dx.doi.org/10.1515/ipp-2007-0004.
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Abstract Three S-G HEUR thickeners were synthesized by a step growth polymerization technique of poly (ethylene oxide) (PEO) and dicyclohexylmethane – 4,40-diisocyanate (H12MDI) and then end capped with two monofunctional aliphatic alcohols. These polymers were mixed together according to the hydrophilic and hydrophobic nature of their segments. Based on this, two sets of associating polymers were introduced. In one set, the samples had identical hydrophobic segments while in the other one, hydrophilic segments were similar. The steady shear viscosity profiles of aqueous solutions of all models were determined. In addition, aqueous binary mixtures with various ratios of the S-G HEUR models were studied using steady state and dynamic rheometry. It is suggested that combinations of associating polymers with different size of hydrophobic segments and similar hydrophilic segments produce an associative polymer-like behavior. However, the combination of those with similar long hydrophobic segments and different hydrophilic segments at similar weight ratio in solution falls short of displaying an associative polymer – like behavior.
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Khalinovska, Liudmyla. "Word-combination with adjectivized component political in journalistic texts." Terminological Bulletin, no. 5 (2019): 201–6. http://dx.doi.org/10.37919/2221-8807-2019-5-27.
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There several factors that influence language of modern usus (political language and speech). They are processes in a country, political situation in the world, and as a result, its analyses and media coverage in a text. The subject of our attention is a word combination with adjective component politychnyi (political). This combination hasn’t been studies in the Ukrainian linguistics yet. The present research is aimed to systematize and describe structural and functional features of set expressions with the qualifying component mentioned bellow. Stability of such units can be explained by constant lexical composition with the unchangeable grammar meaning, word order, and active usage in speech. Most of the analyzed combinations are built in such a way: noun + adjective. Among terms-word combinations substantive combinations with depended component represented by adjective of attributive type are highly productive. They can be marked as adjective + noun: politychna kultura (political culture), politychnyi vysnovok (political conclusion), politychna manipuliatsiia (political manipulation) etc. Set expressions can be formed with the help of terms and commonly used words. The expansion of word combinations with the adjective component politychnnyi (political) in social language sphere leads to semantically different combinations appearance. Often component politychnnyi (political) adding results in positively / negatively marked set expression with new meaning appearance. Semantic changes take place under the influence of inner-lingual (language environment, context), cultural, social (war, trade, revolution, change of government etc.) etc. Some of them appear because of determinologization as a mean of imaginary. In the media language there are terms of many branches of knowledge used for different purposes – description of events taking place in modern society, popularization of science, the latest technologies and inventions, etc. Terms to change their meaning in combination are often borrowed from the fields of economics, medicine, sports, ecology and computer technology. Modern Ukrainian society sensitively reacts to the political processes that take place in it. It results in new words and phrases appearance, which are kind of litmus, a characterization of events by the citizens of Ukraine. The study of dynamic trends in modern socio-political media texts (the emergence of neologisms, the study of the changes in meanings of terms), will contribute to further regulation of the linguistic political communicative space, taking into account its anthropocentric, polyparadigmatic and interdisciplinary nature.
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Lim, CC, and S. L. Kitto. "MICROPROPAGATION OF ACONZTUM UNCINATUM: GROWTH REGULATOR AND ANTIOXIDANT SCREENING USING THE SURFACE-RESPONSE ANALYSIS METHOD." HortScience 30, no. 2 (April 1995): 186a—186. http://dx.doi.org/10.21273/hortsci.30.2.186a.
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Aconitum uncinatum L., a herbaceous native, is not widely available for the public because of difficulties in producing plants via conventional methods. The initial objective was to find a growth regulator combination and an antioxidant concentration that provided increased proliferation rates. Growth regulator combinations examined were BA (0, 11.1, 22.2, 44.4 μm), 2iP (0, 24.6, 49.2 μm), kinetin (0, 23.2, 46.5 μm), IAA (0, 28.5, 57.1 μm), and NAA (0, 26.9, 53.71μm). Antioxidants examined were ascorbic acid (0, 150, 500 ppm), citric acid (0, 150, 500 ppm), PVP (0, 250, 500 ppm), PVPP (0, 250, 500 ppm), and MPP (0, 0.5,1 ppm). Surface response analysis was used to select 30 (of more than 3000 possible) combinations of growth regulator or antioxidant concentrations. Experiments were subcultured every 4 weeks and terminated at 8 weeks. Total-shoot proliferation was significantly greater on media containing 44.4 μm BA + 46.5 pm kinetin. There were six antioxidant combinations that were no different from the control (150 ppm each ascorbic acid and citric acid). Further experiments looking at various BA + kinetin and antioxidant concentrations are needed to refine the media for maximal proliferation.
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SONIARI, NI NENGAH, and NI WAYAN SRI SUTARI. "Viabilitas Azotobacter spp. pada Beberapa Kombinasi Media Pembawa." Agrotrop : Journal on Agriculture Science 12, no. 1 (May 31, 2022): 76. http://dx.doi.org/10.24843/ajoas.2022.v12.i01.p07.
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Azotobacter spp. Viabilities on Some Combinations of Carrier Media. The purpose of this research was to find suitable carrier media for the survival of Azotobacter spp. as a biological fertilizer, before being applied to the field. The method used in this research is explorative, by inoculating Azotobacter spp. Isolate on 4 types of carrier media, namely soil; cocopeat; wood dust and charcoal with a combination of the following: K1 (Land); K2 (soil + cocopeat); K3 (Soil + sawdust) and K4 (Soil + husk charcoal), which were repeated 3 times, so there were 12 experimental units. Analysis of N, P, K, C-organic and pH for soil media, while for cocopeat, wood powder and husk charcoal, an analysis of N and P, C-organic tissue and pH was carried out. The parameters observed were optical density at 2, 4, 6 and 8 weeks. The results showed that the survival of Azotobacter spp. in K4 carrier media (a combination of soil and husk charcoal) is more secure than other types of carrier media with optical density that has not decreased. Analysis of N and P for rice husk charcoal tissue gave the highest results, namely 1,680% and 1,351%, which were one of the supporters of this inoculant viability. Azotobacter spp. viability still guaranteed until 6 weeks incubation period, in several media, (soil + cocopeat), (soil + sawdust), and (soil + husk charcoal). The combination of media (soil + husk charcoal) gave the highest population increase at the 6 weeks incubation period.
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Pormohammad, Ali, and Raymond J. Turner. "Silver Antibacterial Synergism Activities with Eight Other Metal(loid)-Based Antimicrobials against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus." Antibiotics 9, no. 12 (November 28, 2020): 853. http://dx.doi.org/10.3390/antibiotics9120853.
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The present study surveys potential antibacterial synergism effects of silver nitrate with eight other metal or metalloid-based antimicrobials (MBAs), including silver nitrate, copper (II) sulfate, gallium (III) nitrate, nickel sulfate, hydrogen tetrachloroaurate (III) trihydrate (gold), aluminum sulfate, sodium selenite, potassium tellurite, and zinc sulfate. Bacteriostatic and bactericidal susceptibility testing explored antibacterial synergism potency of 5760 combinations of MBAs against three bacteria (Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus) in three different media. Silver nitrate in combination with potassium tellurite, zinc sulfate, and tetrachloroaurate trihydrate had remarkable bactericidal and bacteriostatic synergism effects. Synergism properties of MBAs decreased effective antibacterial concentrations remarkably and bacterial cell count decreased by 8.72 log10 colony-forming units (CFU)/mL in E. coli, 9.8 log10 CFU/mL in S. aureus, and 12.3 log10 CFU/mL in P. aeruginosa, compared to each MBA alone. Furthermore, most of the MBA combinations inhibited the recovery of bacteria; for instance, the combination of silver nitrate–tetrachloroaurate against P. aeruginosa inhibited the recovery of bacteria, while three-fold higher concentration of silver nitrate and two-fold higher concentration of tetrachloroaurate were required for inhibition of recovery when used individually. Overall, higher synergism was typically obtained in simulated wound fluid (SWF) rather than laboratory media. Unexpectedly, the combination of A silver nitrate–potassium tellurite had antagonistic bacteriostatic effects in Luria broth (LB) media for all three strains, while the combination of silver nitrate–potassium tellurite had the highest bacteriostatic and bactericidal synergism in SWF. Here, we identify the most effective antibacterial MBAs formulated against each of the Gram-positive and Gram-negative pathogen indicator strains.
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Astuti, Sri, and Yeni Muly Yana. "PENGARUH MEDIA TANAM DAN NUTRISI TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SELADA KEPALA RENYAH (Lactuca sativa var. capitata) SECARA HIDROPONIK." Konservasi Hayati 15, no. 2 (October 10, 2019): 11–17. http://dx.doi.org/10.33369/hayati.v1i2.10948.
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Study aims to determine the effect of planting media and nutrients on the growth and yield of crispy lettuce (Lactuca sativa var. Capitata) hydroponically and to determine the best planting media and types of nutrients on the growth and yield of crispy lettuce (Lactuca sativa) var. capitata) hydroponically. This research uses factorial experimental design in CRD. The first factor is 3 planting media (coffee husk charcoal, rice husk charcoal and rock wool). The second factor is 3 nutrients (organic, AB mix and organic + inorganic). There are 9 combinations of planting media and nutrition for the growth of crispy lettuce head planting. Each combination is randomized before being tested, to determine the order of testing. Each combination is done 3 times. The results of observations and average calculation of plant parameter data at the 4th week after transplanting showed the result that there was no effect of the planting media and nutrients on the growth and yield of lettuce. Likewise with the results of analysis of variance (ANOVA) showed that there was no real effect on plant parameters.
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Blodgett, Allyson M., David J. Beattie, John W. White, and George C. Elliott. "Hydrophilic Polymers and Wetting Agents Affect Absorption and Evaporative Water Loss." HortScience 28, no. 6 (June 1993): 633–35. http://dx.doi.org/10.21273/hortsci.28.6.633.
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A plantless system using subirrigation was developed to measure water absorption and loss in soilless media amended with hydrophilic polymers, a wetting agent, or combinations of these amendments. Peat-perlite-vermiculite and bark-peat-perlite controls achieved 67% and 52% of container capacity, respectively, after 20 daily irrigation cycles. Maximum water content of amended media was 78% of container capacity. Adding only a hydrophilic polymer did not increase total water content significantly. Adding a wetting agent increased water absorption in both media. However, when hydrophilic polymer and wetting agent were present, the medium absorbed more water than with wetting agent alone. More extractable water was removed from media containing wetting agent. Water loss rate by evaporation was not affected significantly by medium, hydrophilic polymer, wetting agent, or any combination of these variables.
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Girsang, Thomson A. S., Veny Apriyani, Desti S. N. Pasaribu, and Lisnawaty Simatupang. "Application of Humid Silica Plus Fertilizer with Various Combinations of Planting Media." Indonesian Journal of Chemical Science and Technology (IJCST) 2, no. 2 (July 12, 2019): 121. http://dx.doi.org/10.24114/ijcst.v2i2.14000.
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Volcanic ash contains minerals needed by soil and plants with the highest composition of total elements, namely Ca, Na, K and Mg, other macro elements in the form of P and S, while micro elements consist of Fe, Mn, Zn, Cu. The layer of volcanic dust that has the potential to contain nutrients for soil fertilization for agriculture can actually only be used about 10 years after the spread of volcanic ash. Soil fertilization can be accelerated if mixed with organic materials such as by using chicken manure fertilizer which has nutrients from chicken manure: N = 1.7%, P2O5 = 1.9%, K2O = 1.5%. Humic acid helps regulate clay and soil improvement, binds and transfers micro elements from the soil to plants, increases water absorption, and stimulates the development of microorganisms in the soil. Therefore, this study was conducted to make humic silica fertilizer in the planting medium by utilizing volcanic ash in combination with chicken manure mixed with soil. In this study apart from being a source of humic acid, chicken manure is also beneficial because it contains microorganisms which will be useful in accelerating the fertilizer incubation process. The composition of the fertilizer mixture used in this study is: volcanic ash sinabung: chicken manure: soil = 20: 50: 30; 30: 50:20; 40: 50: 10. The mixture is stirred evenly and then incubated for 30 days. After 30 days, the nutrient content of these fertilizers was tested and the highest content of the nutrients obtained in the combination was 20:50:30 namely: Organic C-1.35%, N-total 0.2%, P-available 20.16 ppm , K-available 0.527 me / 100g, C / N 6.75%, and humic acid contained in 3.925%
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Sava, C. J., M. C. Rusu, M. Săndulescu, and D. Dincă. "Vertical and sagittal combinations of concha bullosa media and paradoxical middle turbinate." Surgical and Radiologic Anatomy 40, no. 7 (March 3, 2018): 847–53. http://dx.doi.org/10.1007/s00276-018-1998-0.
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Aziizah, Yusnia Nur, and Choirul Anna Nur Afifah. "IMPLEMENTASI KOMBINASI MEDIA KOMUNIKASI ONLINE DALAM PENDIDIKAN GIZI PRAKONSEPSI GENERASI MILENIAL." Jurnal Sehat Mandiri 16, no. 1 (June 23, 2021): 92–104. http://dx.doi.org/10.33761/jsm.v16i1.374.
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Preconception nutrition education is one of the iefforts to prepare the millennial generation to face marriage and produce healthy and quality offspring. The characteristics of millennial generation who understand information technology and the occurrence of a pandemic are the reasons to use online communication media in nutrition education. This study aims to determine the most effective combination of online communication media (Microsoft Sway-Whatsapp and Microsoft Sway-Zoom Cloud Meeting) used in preconception nutrition education for the millennial generation. The study used a quasi-experimental method with a nonequivalent control group pre-test and post-test design. Samples of 60 people obtained by the purposive sampling technique. Quantitative data on nutritional knowledge between groups were analyzed by independent t-test. Research shows that using a combination of online communication media can effectively improve educational outcomes. There is no significant difference in the results of millennial nutrition education in the use of the two combinations of online communication media, but the use of the Microsoft Sway-Whatsapp combination is considered to give better results because it is considered practical, easy to use, and does not require more quota pulses. The use of online communication media in education is necessary. considering media capabilities, internet network, and access costs for optimally goals.
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Saji, V. S., and S. M. A. Shibli. "Synergistic inhibition of carbon steel corrosion by sodium tungstate and sodium silicate in neutral aqueous media." Anti-Corrosion Methods and Materials 49, no. 6 (December 1, 2002): 433–43. http://dx.doi.org/10.1108/00035590210452789.
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Tungstate inhibitors are seldom used alone in open recirculating cooling water systems due to their low oxidising ability and high cost. The objective of the present work was to develop efficient synergistic inhibitor combinations comprising sodium silicate and very low concentration of sodium tungstate, keeping in view of their application in industrial cooling water system. It was demonstrated in the present study that all the combinations of the inhibitors exhibited synergistic benefit and higher inhibition efficiencies than did either of the individual inhibitors. It was also established that a 4:1 ratio of sodium silicate to sodium tungstate (total 1,000 ppm) was the best overall combination. The FTIR spectra also suggest that tungstate and silicate ions were incorporated in the passivating metal oxide layer formed on the surface of carbon steel in the inhibitor solutions. The effects of excess and depleted concentrations of the individual inhibitor components on overall inhibition behaviour are also discussed.
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Wang, Yiti, Hongbo Zhou, Jiajun Chen, and Qi Xu. "A Quantitative Evaluation Method for Xanthan Enhanced Transport Uniformity and Factors Affecting This Process." Water 14, no. 17 (August 26, 2022): 2630. http://dx.doi.org/10.3390/w14172630.
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Strengthening the transmission uniformity of remedial amendments in heterogeneous porous media is important for improving in situ groundwater remediation efficiency. This study developed a characterization method to represent the improvement of transmission uniformity in heterogeneous media using the degree of difference in hydraulic conductivity of porous media between xanthan solution and pure water, which was defined as the transmission uniformity control coefficient U. Research results showed that U of medium sand/fine sand (2.44) was the most ideal among the three medium combinations tested when the concentration of xanthan solution was 100 mg/L. Then, factors that may influence U were analyzed, and the obtained results showed that xanthan’s control ability is affected by permeability contrast (media combinations) and polymer concentration. Generally, when concentrations were in the range of 100~800 mg/L, Umf > Ucf > Ucm. Finally, the actual degree of polymer propulsion under different concentrations and media combinations was analyzed, and the obtained results showed that as different media were varied in permeability change degree, while the migration speed presented an overall decrease as the concentration increased, where the maximum migration front in the low-permeability zone (LPZ) was more obvious than that in the high permeability zone (HPZ). This was consistent with the results characterized by U.
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Farzinebrahimi, Reza, Rosna Mat Taha, Kamaludin A. Rashid, Bakrudeen Ali Ahmed, Mahmoud Danaee, and Shahril Efzueni Rozali. "Preliminary Screening of Antioxidant and Antibacterial Activities and Establishment of an Efficient Callus Induction inCurculigo latifoliaDryand (Lemba)." Evidence-Based Complementary and Alternative Medicine 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/6429652.
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Leaf, seed, and tuber explants ofC. latifoliawere inoculated on MS medium supplemented with various concentrations of BAP and IBA, alone or in combinations, to achievein vitroplant regeneration. Subsequently, antioxidant and antibacterial activities were determined fromin vitroandin vivoplant developed. No response was observed from seed culture on MS media with various concentrations of PGRs. The highest percentage of callus was observed on tuber explants (94%) and leaf explants (89%) when cultured on MS media supplemented with IBA in combination with BAP. A maximum of 88% shoots per tuber explant, with a mean number of shoots (8.8±1.0), were obtained on MS medium supplemented with combinations of BAP and IBA (2.5 mg L−1). The best root induction (92%) and mean number (7.6±0.5) from tuber explants were recorded on 2.5 mg L−1IBA alone supplemented to MS medium. The higher antioxidant content (80%) was observed fromin vivotuber. However, tuber part from the intact plant showed higher inhibition zone in antibacterial activity compared to otherin vitroandin vivotested parts.
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Kerr, Gregory P., and Joe J. Hanan. "Leaching of Container Media." Journal of the American Society for Horticultural Science 110, no. 4 (July 1985): 474–80. http://dx.doi.org/10.21273/jashs.110.4.474.
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Abstract Leaching of salt from container media was investigated by means of the miscible displacement theory for 6 peat-perlite-glass bead combinations plus 4 other mixes. Columns were salinized with 15 meq 1−1 each CaCl2 and NaCl, then allowed to equilibrate. Electrical conductivity of the effluent was recorded as columns were leached, using 1 cm constant water head, with solutions of 1, 4, or 7 meq 1−1 each of CaCl2 and NaCl. The replacement efficiency of the soil solution by the leaching solution increased as glass bead content increased. Replacement efficiency of the soil solution had high correlation with mixture physical properties. No relationship to particle size distribution could be ascertained. Leaching solution concentration did not influence replacement efficiency and, generally, after 1 to 1.5 container capacities of effluent, removal of the original soil solution decreased substantially.
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Verma, Praveen, Niren Das, Vishavjit Kumar, and R. Kumar. "Effect of Sphagnum spp. as Substrate media on Rooting response of Cinnamomum Verum Presl. (Syn. C. Zeylanicum Blume) through Air Layering." Journal of Non-Timber Forest Products 20, no. 3 (September 1, 2013): 179–82. http://dx.doi.org/10.54207/bsmps2000-2013-nja296.
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The use of different species of Sphagnum (S. papillosum and S. khasinum) shows very prominent results when used as substrate media in rooting of spice and oil yielding plant Cinnamomum verum Presl. (Syn. C. zeylanicum) through air layering. The treatments (T2 & T6) combination with Indole Butyric acid (IBA) (2000 ppm) gave 90-100% rooting success comparison to other combinations and control.
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Thu, Ho Thi Minh, Aung Htay Naing, Hui Yeong Jeong, and Chang Kil Kim. "Regeneration of Genetically Stable Plants from in Vitro Vitrified Leaves of Different Carnation Cultivars." Plants 9, no. 8 (July 28, 2020): 950. http://dx.doi.org/10.3390/plants9080950.
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This study was conducted to investigate the efficacy of shoot regeneration from different leaf types (normal leaves and vitrified leaves) from three different carnation cultivars ‘Kumbuyl’, ‘Denev’, and ‘Jinju’ using different combinations of 3-indole butyric acid (IBA) and thidiazuron (TDZ) concentrations. The shoot tips cultured on Murashige and Skoog (MS) basal media (Type 1 media) produced normal leaves, while those cultured-on media supplemented with plant growth regulators and/or vitamin (Type 2 media and Type 3 media) produced vitrified leaves for all cultivars. Culture of normal leaf segments on MS medium containing different combinations of IBA and TDZ concentrations induced callus in all treatments; however, the callus was unable to induce shoots and finally became necrotic. In contrast, no callus induction was observed in the control (hormone-free treatment). When vitrified leaf segments underwent the same treatments, shoots were induced from the vitrified leaves (derived from Type 2 media) but were unhealthy and gradually died, whereas those induced from Type 3 media were vitrified and healthy. The optimal combination for the best shoot regeneration and number of shoots per explants varied depending on the genotypes used. The vitrified shoots induced from the leaves of Type 3 media transformed into normal shoots and survived well under greenhouse conditions. According to the results of random amplified polymorphic DNA (RAPD) analysis, the banding patterns of twelve primers that were detected in vitrified leaf-induced normalized shoots were identical to those of normal in vitro grown plants, indicating that no genetic variation had occurred during the procedure. Taken together, this study indicates that vitrified leaves can be used for shoot regeneration of recalcitrant carnation cultivars, regardless of the genotypes and types of vitrified leaves. However, as the number of shoots per explants was still low, further investigation is warranted to obtain a more efficient shoot regeneration protocol for genetic transformation of the cultivars.
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Simeonova, Valeriya, Krassimira Tasheva, Georgina Kosturkova, and Dimitar Vassilev. "A Cost-Effective Method for Identifying Nutrient Media Combinations Producing Plants with Maximum Bioactive Substances." Serdica Journal of Computing 12, no. 3 (December 14, 2018): 191–218. http://dx.doi.org/10.55630/sjc.2018.12.191-218.
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The aim is to find a cost-effective method of identifying nutrient media producing identical plants with maximum performance in terms of the bioactive substances contained in them. An adaptation of QSAR is used. The "spatial structure of the chemical component" is replaced with "the multidimensional structure of the nutrient medium" or with the treated day schemes. For each process, a separate forecast is made. All nutrition media produced in silico are based on the ranges of phytonutrient hormones in biotechnological experiments. We found 43 theoretical combinations of media with more than 80% success under conditions of limited resources in the price range of [0-1,5] euro/liter. The obtained results can be used as: a theoretical guideline for determining the optimal nutrient media and combinations; to the study of other medicinal plants in order to establish effective biotechnological schemes for growth and rooting that are also cost-effective; using ANN, taking into account the species and the ecotype.
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Kang, Yunyi, Trish Tran, Linda Zhang, Edward D. Ball, Carlo Piermarocchi, and Giovanni Paternostro. "Personalized Drug Combinations for the Treatment of Acute Myeloid Leukemia (AML) Patients." Blood 124, no. 21 (December 6, 2014): 3616. http://dx.doi.org/10.1182/blood.v124.21.3616.3616.
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Abstract Acute myeloid leukemia (AML) is a highly heterogeneous disorder characterized by the rapid clonal proliferation of blasts derived from hematopoietic progenitor cells, leading to failure of normal hematopoiesis. Although standard therapy, usually including idarubicin and cytarabine, has been used to achieve remission, the long-term survival rates remain low. To show that it is possible to improve existing AML standard therapy, we have used experimental algorithms we have recently developed (iterative algorithms that find effective combinations without a full combinatorial screening) to find selective drug combinations for AML cells. The first search was done using the AML cell line KG-1 for the initial steps and cells from an AML patient for the final step. A normal fibroblast cell line (IMR-90) and normal blood progenitor cells were used as controls for toxicity. Drugs were chosen from those already approved or in clinical trials for AML. As shown in Figure 1, this experimental search was able to achieve selective killing of AML patient cells with a ratio close to 100:1 with respect to non-cancer control cells. To refine the choice of drugs to be used in the search, we recently developed a network model of AML intracellular signal transduction (see www.leukemianetworks.org). The present version (AML 2.1) includes 5667 proteins and 22,218 interactions. The network can be used to integrate genomic and gene expression information from individual patients and to provide a shortlist of drugs to be tested further. Using literature data and our network model we identified three compounds as promising for AML drug combinations: the MEK inhibitor PD0325901, the FLT3 inhibitor Quizartinib and the CDK 4/6 inhibitor Palbociclib. For this experiment, normal progenitor blood cells were the controls. Figure 2 shows the results of 64 experimental tests of the response to different combinations of these drugs. The two AML patients clearly exhibited different drug sensitivities, further supporting the necessity of personalized drug combinations. To improve the clinical relevance of these in vitro studies, we investigated the correlation between clinical and in vitro response to standard AML therapy, using a set of media containing 16 cytokines/growth factors in different combinations. These molecules have been selected using three methods: ligands acting on receptors that are part of gene signatures with prognostic significance in AML; cytokines that promote hematopoietic differentiation of stem cells; and ligands of receptors identified as playing an important role in AML in a recent RNAi screen. During several iterations of our combinatorial search algorithm we studied 185 different media. Figure 3 shows the correlation between clinical response (residual blasts after 28 days of therapy) and response to the same therapy in vitro after 72 h achieved in the last iteration of the search, in a study of six patients. The medium with the highest correlation had a correlation coefficient of 0.99 (p=0.0002). The in vitro response in this medium is clearly able to distinguish patients that respond to standard therapy vs those that do not, as can be seen from the inset of Fig. 3. Some cytokines (BMP-4 and IL-4) were always absent in the group of 14 media with lower correlation shown on the right of Figure 3. The remarkable variation in correlation with clinical response of these media, spanning correlation coefficient values from 0.99 to 0.004, clearly show the importance of optimizing the in vitro microenvironment for prediction of patient drug response. In summary, we identified drug combinations that selectively kill AML primary cells and we optimized media that improve the in vitro prediction of clinical drug response. These methods can together assist in the personalization of AML therapy using patientÕs cells. Figure 1. Selective drug combinations for AML primary cells. Selectivity is the ratio between AML and control cell viability. Figure 1. Selective drug combinations for AML primary cells. Selectivity is the ratio between AML and control cell viability. Figure 2. Selective drug combinations for AML primary cells from two patients, using multiple doses and combinations of Quizartinib, PD-0325901 and Palbociclib. Patient 2005-9 responded to MEK inhibitor PD-0325901 whereas Patient 2010-7 responded to FLT3 inhibitor Quizartinib. Figure 2. Selective drug combinations for AML primary cells from two patients, using multiple doses and combinations of Quizartinib, PD-0325901 and Palbociclib. Patient 2005-9 responded to MEK inhibitor PD-0325901 whereas Patient 2010-7 responded to FLT3 inhibitor Quizartinib. Figure 3. A pilot study showing the clinically predictive power of optimized media. The inset shows the best medium. Please note the strong effect of media composition on clinical correlation. Figure 3. A pilot study showing the clinically predictive power of optimized media. The inset shows the best medium. Please note the strong effect of media composition on clinical correlation. Disclosures Piermarocchi: Salgomed Inc.: Equity Ownership. Paternostro:Salgomed Inc.: Equity Ownership.
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Biswas, Purnendu, Md Harun-Or Rashid, Abul Kashem Chowdhury, and Md Amzad Hossain. "Direct plant regeneration through micropropagation using selected explants of sugarcane." International Journal of Advanced Geosciences 8, no. 2 (November 10, 2020): 244. http://dx.doi.org/10.14419/ijag.v8i2.31100.
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The experiment was conducted at the Laboratory of Biotechnology Division, Bangladesh Sugarcrop Research Institute (BSRI), Ishurdi, Pabna during the period from January 2009 to December 2009 to regenerate plants through micropropagation technique using selected explants of sugarcane. In this experiment shoot tip, leaf segment and leaf roll section explants of three sugarcane varieties (Isd 16, Isd 35 and Isd 36) were cultured on shoot inducing MS media with four combinations of NAA and Kn (NAA2.5Kn0.5, NAA5.0Kn0.5, NAA7.5Kn0.5 and NAA10.0Kn0.5 mg/l) to regenerate plants. The proliferated shoots were multiplied on liquid MS media with five combinations of BAP and Kn (BAP0.25Kn0.25, BAP0.5Kn0.25, BAP0.5Kn0.5, BAP1.0Kn0.5 and BAP1.0Kn1.0 mg/l) and further transferred to root inducing MS media fortified with six different concentrations of NAA (1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 mg/l) for adventitious root formation to raise full-fledged plantlets. The leaf roll section explant of variety Isd 35 cultured on MS medium containing hormonal combination of 7.5 mg/l NAA + 0.5 mg/l Kn produced the highest percentage (83.33%) of shoot regeneration. The number of shoots per explant was also found highest (10.23) in the same explant of same variety with the same hormonal combination. The highest multiplication rate (4.64) was obtained from the liquid MS medium containing hormonal combination of 1.0 mg/l BAP + 0.5 mg/l Kn in the variety Isd 35. The MS medium containing 5.0 mg/l NAA showed better performance for adventitious root induction to raise full-fledged plantlets in all the varieties within nine days of inoculation.
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Bures, Silvia, and Franklin A. Pokorny. "SHRINKAGE IN TERNARY MIXES OF CONTAINER MEDIA." HortScience 25, no. 9 (September 1990): 1163c—1163. http://dx.doi.org/10.21273/hortsci.25.9.1163c.
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An equation for predicting shrinkage in 3-component (ternary) container media was devised. The predictive equation was tested using experimental data obtained from sets of mixtures of milled pine bark, sand, and calcined clay. Each set consisted of 66 different combinations of the experimental components. Actual shrinkage data was correlated with theoretical values calculated from the predictive model. Results of the experiment suggest that shrinkage can be used as a factor with linear programing techniques.
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Filippini, Perla, Elisabetta Iona, Giovanni Piccaro, Pascale Peyron, Olivier Neyrolles, and Lanfranco Fattorini. "Activity of Drug Combinations against Dormant Mycobacterium tuberculosis." Antimicrobial Agents and Chemotherapy 54, no. 6 (March 29, 2010): 2712–15. http://dx.doi.org/10.1128/aac.01736-09.
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ABSTRACT Aerobic (5-day-old cultures) and nonreplicating (dormant) Mycobacterium tuberculosis (5-, 12-, and 19-day-old cultures) bacteria were treated with rifampin (R), moxifloxacin (MX), metronidazole (MZ), amikacin (AK), or capreomycin (CP) for 7, 14, and 21 days. R-MX-MZ-AK and R-MX-MZ-CP killed both aerobic and dormant bacilli in 21 days, as shown by lack of regrowth in solid and liquid media. R-MX-MZ-AK and R-MX-MZ-CP also caused a strong decrease of nonreplicating bacilli in 7 days in a cell-based dormancy model.
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Kumar, Rakesh, Poothuvallil K. Surendran, and Nirmala Thampuran. "Evaluation of Culture Media for Selective Enrichment and Isolation of Salmonella in Seafood." Journal of AOAC INTERNATIONAL 93, no. 5 (September 1, 2010): 1468–71. http://dx.doi.org/10.1093/jaoac/93.5.1468.
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Abstract Seafood, including fish, shrimp, clam, crab, mussel, oyster, lobster, squid, octopus, and cuttlefish samples, was used to compare the recovery of Salmonella serovars by different selective enrichment and isolation media. The samples were selectively enriched in Rappaport-Vassiliadis (RV) broth and tetrathionate broth (TT), followed by selective isolation on Hektoen enteric (HE) agar, xylose lysine desoxycholate (XLD) agar, bismuth sulfite (BS) agar, and Brilliant Green (BG) agar media. Of 443 seafood samples analyzed, 108 were found to be contaminated with Salmonella. The role of selective enrichment in Salmonella spp. recovery with RV medium was distinctly high (70%) compared to TT broth (30%). The selective enrichment in RV broth followed by selective isolation on XLD, HE, BS, and BG agar recovered Salmonella at levels of 56, 41, 28, and 16%, respectively. Similarly, after enrichment in TT broth, XLD and HE agars recovered 27 and 23 respectively. The recovery of Salmonella with enrichment in TT followed by isolation on BS and BG was abysmally low at 4.6 and 5, respectively. There was no significant difference (P > 0.05) in the recovery of Salmonella using the combinations of XLD and HE media with selective enrichment in RV broth. However, performance difference (P <0.05) was observed in the recovery when BS and BG with RV, and XLD, HE, BS, and BG agars with TT broth were used. The present study showed that the combination of RV with XLD was the most efficient media for isolation of Salmonella from seafood when compared to other isolation media combinations.
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Nurnadia, Andenan, M. Rashid, S. Hajar, and M. R. Ammar. "Effect of Filter Aids on Pressure Drop and Permeability of Two Different Filter Media." Advanced Materials Research 1125 (October 2015): 245–49. http://dx.doi.org/10.4028/www.scientific.net/amr.1125.245.
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Abstract. A study on the effect of a newly formulated filter aids onto two different types filter media that are teflon and Ryton was carried out in a laboratory scale filtration system. The filter aids material is a combination of PrekotTM and activated carbon which are commonly used as flue gas cleaning agent respectively. The effect of the filter aids of various combination on pressure drop and permeability across the two filter media under different filtration velocities was investigated in this study. Results showed that ryton presents a lower pressure drop under various combinations of filter aids for different filtration velocities compared to teflon. A lower pressure drop across the fabric filter resulted a higher permeability property of ryton which allows higher volumetric air flow rates passing through it compared to teflon filter. The study suggests that the addition of PrekotTM in the formulation of filter aids significantly affect both pressure drop and permeability of the filter media
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Parmar, J. P., Rajesh Tiwari, Keshav K. Gautam, L. Yadav, and N. Upadhyay. "Effect of Indole 3-butyric acid (IBA), rooting media and their interaction on different rooting and growth characteristic of air-layers in guava (Psidium guajava L. cv. L-49)." Journal of Applied and Natural Science 10, no. 1 (March 1, 2018): 241–46. http://dx.doi.org/10.31018/jans.v10i1.1611.
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The present investigation was undertaken to study the effect of different concentrations of Indole 3-butyric acid (0, 2000, 4000, 8000 and 10000 ppm), different types of rooting media (i.e. sphagnum moss, coco peat, vermicompost, sphagnum moss + coco peat and sphagnum moss + coco peat + vermicompost) and the interaction of these in different combinations on rooting and growth characteristic of guava, cv. L-49. The results revealed that the exogenous application of Indole 3-butyric acid (IBA) 8000 ppm with media combination of sphagnum moss + coco peat + vermicompost (I3M5) significantly increased the root characters i.e. success percent of air-layers (83.3 %), callus formation (23.7), number of primary roots (24.21) and secondary roots (32.57); and growth characters i.e. number of leaves (48.17), branches (7.92) and sprouts (8.48) and survival percentages (83.18) over the other treatments and control. Among the rooting media, the combination of sphagnum moss + coco peat + vermicompost (M5) produced the highest rooting percentage (71.27), root characters and growth characters during months of July and August.
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Goyal, A. K., K. Ganguly, T. Mishra, and Arnab Sen. "In vitro multiplication of Curcuma longa Linn.-an important medicinal zingiber." NBU Journal of Plant Sciences 4, no. 1 (2010): 21–24. http://dx.doi.org/10.55734/nbujps.2010.v04i01.003.
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Curcuma longa Linn. is a herbaceous perennial plant belonging to the family Zingiberaceae. In viro protocol for the regeneration of plantlets from the sprouted rhizomes of turmeric was optimized. Murashige and Skoog media supplemented with different concentrations and combinations of cytokinins and varied percentage of sucrose were experimented. Murashige and Skoog media supplemented with benzyl amino benzene (BAP) at the concentration of 2mg/l and sucrose 3% showed the best regeneration in comparison to Kinetin when used singly. Combination of 2mg/1 BAP and 3mg/ Kinetin resulted in highest number of shoots. The same media showed spontaneous rooting. Healthy regenerated plantlets were selected for hardening in sterile mixture of garden soil and sand in the ratio of 1:1. Ninety three percent of the micropropagated plantlets survived to maturity when transferred to soil.
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Goyal, A. K., K. Ganguly, T. Mishra, and Arnab Sen. "In vitro multiplication of Curcuma longa Linn.-an important medicinal zingiber." NBU Journal of Plant Sciences 4, no. 1 (2010): 21–24. http://dx.doi.org/10.55734/nbujps.2010.v04i01.003.
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Curcuma longa Linn. is a herbaceous perennial plant belonging to the family Zingiberaceae. In viro protocol for the regeneration of plantlets from the sprouted rhizomes of turmeric was optimized. Murashige and Skoog media supplemented with different concentrations and combinations of cytokinins and varied percentage of sucrose were experimented. Murashige and Skoog media supplemented with benzyl amino benzene (BAP) at the concentration of 2mg/l and sucrose 3% showed the best regeneration in comparison to Kinetin when used singly. Combination of 2mg/1 BAP and 3mg/ Kinetin resulted in highest number of shoots. The same media showed spontaneous rooting. Healthy regenerated plantlets were selected for hardening in sterile mixture of garden soil and sand in the ratio of 1:1. Ninety three percent of the micropropagated plantlets survived to maturity when transferred to soil.
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Zhan, XC, DA Jones, and A. Kerr. "In vitro Plantlet Formation in Linum marginale From Cotyledons, Hypocotyls, Leaves, Roots and Protoplasts." Functional Plant Biology 16, no. 4 (1989): 315. http://dx.doi.org/10.1071/pp9890315.
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Regeneration of shoots from cotyledons, hypocotyls, roots, leaf explants and callus derived from pro- toplasts of Linum marginale was achieved in vitro on Murashige and Skoog's (MS) medium with various combinations of growth substances. The regeneration capacity of explants from the various sources and their responses to the various media differed considerably. Hypocotyls seemed to be the best explant source for bud regeneration, followed by roots. The optimal combination of growth substances for bud regeneration on hypocotyl explants was 0.02 mg L-1 NAA, 1 mg L-1 6-BA and 20 mg L-1 adenine and on root explants, 1 mg L -1 zeatin. Protoplasts were readily isolated and cultured from shoots, and buds were regenerated from the resulting callus on media with various combinations of growth substances. The best medium was MS medium with 5 mg L-1 zeatin. About 10% of shoots from the various sources formed roots after transfer to MS medium. These regeneration results are assessed with respect to the possible use of various plant genetic engineering techniques to generate genetically transformed plants of L. marginale.
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Bilderback, T. E., and W. C. Fonteno. "Effects of Container Geometry and Media Physical Properties on Air and Water Volumes in Containers." Journal of Environmental Horticulture 5, no. 4 (December 1, 1987): 180–82. http://dx.doi.org/10.24266/0738-2898-5.4.180.
Full textAbstract:
Data derived from soil moisture retention curves of two media were combined with geometric descriptions of four containers to produce calculated values of air and water volumes for each medium-container combination. The volume air space ranged from 28% in a #1 container to 12% in a bedding plant cell (BPC). Water volume after drainage increased from 43% (#1) to 59% (BPC). The same trend occurred in these containers with the peatlite mix. These calculations were also used to mathematically model four simulated containers and to calculate the air and water contents in the resultant container-medium combinations.
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Mo, Wei, Jin Peng Feng, Shao Jian Ma, Jin Lin Yang, and Xiu Juan Su. "Study on Grinding by a Double-Sphericity Abnormity Media." Applied Mechanics and Materials 333-335 (July 2013): 2010–14. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.2010.
Full textAbstract:
A double-sphericity abnormity media as grinding media was presented, and the grinding laws of cassiterite-polymetallic sulfide ore by the abnormity media and single ball media with different combinations were discussed in this paper. The results show that when adopting the abnormity media to replace its mother balls for grinding, the mother ball size is smaller, the grinding effect is better, and adding the abnormity media was helpful to decrease overgrinding. And for cassiterite grinding process, the desirable results could be achieved by using small size abnormity media to replace large single ball media.
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KAINULAINEN, KENT, and SYLVAIN G. RAZAFIMANDIMBISON. "New taxonomic combinations in West Indian Ocean Vanguerieae (Rubiaceae)." Phytotaxa 282, no. 4 (November 1, 2016): 267. http://dx.doi.org/10.11646/phytotaxa.282.4.3.
Full textAbstract:
This paper provides new combinations for two species endemic to the Seychelles, Canthium carinatum and C. sechellarum, which are transferred to Peponidium (tribe Vanguerieae, Ixoroideae, Rubiaceae), as supported by recent molecular phylogenetic analyses. Several new combinations in Vanguerieae from Madagascar are also proposed, based on morphological studies. Canthium bakerianum and C. homolleanum are transferred to Peponidium, whereas C. andringitrense, C. mandrarense, and Peponidium montana are transferred to Pyrostria. The names Pyrostria angustifolia, P. media, and P. major, previously invalid, are here validly published.
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Martin, S. J., S. L. Pendland, C. Chen, P. Schreckenberger, and L. H. Danziger. "In vitro synergy testing of macrolide-quinolone combinations against 41 clinical isolates of Legionella." Antimicrobial Agents and Chemotherapy 40, no. 6 (June 1996): 1419–21. http://dx.doi.org/10.1128/aac.40.6.1419.
Full textAbstract:
Combination antimicrobial therapy against Legionella species has not been well studied. Several quinolones have activity against Legionella strains, which prompted this in vitro search for a synergistic combination with the macrolides. By a checkerboard assay, erythromycin, clarithromycin, and azithromycin, each in combination with ciprofloxacin and levofloxacin, were tested for synergy against 46 isolates of Legionella. The agar dilution method was employed using buffered charcoal-yeast extract media. A final inoculum of 10(4) CFU per spot was prepared from 24-h growth of each isolate. Plates were incubated at 35 degrees C for 48 h. Synergy, partial synergy, additive effect, or indifference was observed for all combinations of antibiotics tested. There was no antagonism observed. Synergy occurred to a significantly greater extent for the clarithromycin-levofloxacin (P = 0.0001) and azithromycin-levofloxacin (P = 0.003) combinations versus erythromycin-levofloxacin. The azithromycin-ciprofloxacin combination demonstrated significantly greater synergy than did either erythromycin-ciprofloxacin (P = 0.003) or clarithromycin-ciprofloxacin (P = 0.001). The newer macrolides clarithromycin and azithromycin may be more active in combination with a fluoroquinolone than is erythromycin.