Journal articles: 'Yield way'

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Zaid, Imdad Ullah, Hidayat-ur Rahman, Sajid Khan, Sana Ullah Khan, Ghulam Ullah, Monsif ur Rehman, Rafi Ullah, and Nazeer Ahmad. "Heterotic response of three-way cross maize hybrids for grain yield and yield components." Journal of Agricultural Science and Applications 03, no. 01 (March 31, 2014): 24–29. http://dx.doi.org/10.14511/jasa.2014.030105.

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Salomaa, Kai. "Yield-languages of two-way pushdown tree automata." Information Processing Letters 58, no. 4 (May 1996): 195–99. http://dx.doi.org/10.1016/0020-0190(96)00048-8.

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Kirchmann, Holger. "Why organic farming is not the way forward." Outlook on Agriculture 48, no. 1 (February 27, 2019): 22–27. http://dx.doi.org/10.1177/0030727019831702.

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The aim of this article is to provide information about crop production data based on large-scale organic farming and to point toward major consequences. National statistics show lower organic yields than compiled in meta-analyses from farm- and plot-scale. Yields of organically cropped legumes were 20% and nonlegumes 40% lower than those of conventionally grown crops. Area estimates showed that almost two of three crops were legumes or legume mixtures in organic farming, whereas one of three crops was a legume in conventional cropping. Doubling land use for legumes in organic farming affected the type of food produced, being dominated by milk products and red meat. Over all crops, the organic yield gap was 35%. Since yields are lower under organic than conventional practices, more land is required to produce the same amount of agricultural crops. A 35% yield gap means that 50% more arable land is required. A demand for 50% more farmland imposes huge land use changes and makes one realize the wide-ranging environmental consequences that follow when converting to organic farming. In a relevant comparison between organic and conventional cropping systems, environmental consequences caused by land use change such as lost products (timber, fiber, energy, etc.) and lost ecosystem services (sequestered carbon in soil, wildlife, biodiversity, etc.) must be included. The concept of organic farming was founded on philosophical views about nature, not biological science. Natural means and methods were assumed to be superior. Verification of the reasoning and statements of the founders on why to abandon mineral fertilizers cannot be corroborated by science and is incorrect. Scientific evidence for the concept to abandon synthetic mineral fertilizers as nutrients for crops is lacking. The scientific community is obliged to follow rigorous scientific criteria—not biased views, prejudices, or beliefs.

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Dedio, W. "Performance comparison of single and three-way crosses in sunflower." Canadian Journal of Plant Science 72, no. 2 (April 1, 1992): 431–34. http://dx.doi.org/10.4141/cjps92-048.

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Single and three-way crosses of sunflower (Helianthus annuus L.) hybrids were compared for yield and oil content by testing two groups of hybrids for 2 years. In the first group, the difference in yield and oil content between the two types was not significant, and in the second group the difference in yield was not significant. The oil content of the single crosses in the second group was 7 g kg−1 higher. The coefficient of variability for yield was similar in the two types of hybrids in both groups, indicating no difference in stability.Key words: Sunflower, Helianthus annuus L., single crosses, three-way crosses, oil content, achene yield

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Chassaigne-Ricciulli, Alberto A., Leopoldo E. Mendoza-Onofre, Leobigildo Córdova-Téllez, Aquiles Carballo-Carballo, Félix M. San Vicente-García, and Thanda Dhliwayo. "Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids." Agriculture 11, no. 2 (February 17, 2021): 161. http://dx.doi.org/10.3390/agriculture11020161.

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Genotype, environmental temperature, and agronomic management of parents influence seed yield in three-way cross hybrid maize seed production. The objective of this research was to generate information on the seed production of six three-way cross hybrids and their progenitors, adapted to tropical lowlands. Data on days to—and duration of—flowering, distance to spike and stigmas, and seed yield of five female single crosses and five male inbred lines were recorded for different combinations of four planting densities and four sowing dates in Mexico. The effect of planting density was not significant. The male inbred line T10 was the earliest and highest seed yield and T31 the latest, occupying second place in yield. The single crosses T32/T10 and T13/T14 were the earliest and had the highest effective seed yield. At the earliest sowing date, the females were later in their flowering, accumulated fewer growing degree days (GDD), and obtained higher yields since the grain-filling period coincided with hot days and cool nights. To achieve greater floral synchronization and therefore greater production of hybrid seed, differential planting dates for parents are recommended based on information from the accumulated GDD of each parent. The three-way cross hybrids were classified according to the expected seed yield of the females and the complexity in the synchronization of flowering of their parents.

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Mielke, Paul W., and Kenneth J. Berry. "Categorical Independence Tests for Large Sparse R-Way Contingency Tables." Perceptual and Motor Skills 95, no. 2 (October 2002): 606–10. http://dx.doi.org/10.2466/pms.2002.95.2.606.

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A nonasymptotic chi-squared technique is shown to have very useful properties for the analysis of large sparse r-way contingency tables. Examples of analyses of 4 × 5, 5 × 6, 6 × 7. and two 2 × 2 × 2 sparse contingency tables provide comparisons of the nonasymptotic chi-squared technique with asymptotic chi-squared and exact chi-squared techniques. The asymptotic chi-squared analyses yield inflated probability values for the five tables. The nonasymptotic chi-squared technique yields probability values much closer to the exact probability values than the asymptotic chi-squared Technique for the five tables.

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Chuan, Zheng, Sun, Wang, Liu, Zhao, and Zhao. "A Sustainable Way of Fertilizer Recommendation Based on Yield Response and Agronomic Efficiency for Chinese Cabbage." Sustainability 11, no. 16 (August 12, 2019): 4368. http://dx.doi.org/10.3390/su11164368.

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Chemical fertilizer plays an irreplaceable role in raising vegetable output and improving the livelihood of people in China. Chinese cabbage (Brassica chinensis L.) is one of the most common vegetables with a wide planting area. However, there are problems such as the excessive and blind application of chemical fertilizers, which bring about the increase of planting cost and the risk of environmental pollution. So, it is urgent to improve fertilization methods and improve fertilizer use efficiency, aiming to promote the sustainable development of agriculture. In this study, multi-year and multi-site experiments were retrieved from the published literature and public scientific research institutions to study a sustainable fertilizer recommendation method for Chinese cabbage based on yield response and agronomic efficiency. The results showed that the average indigenous nutrients supply of nitrogen (N), phosphorus (P), and potassium (K) were 112.98, 35.03, and 213.15 kg/ha, respectively. It is suggested that these nutrients should not be neglected in the process of fertilizer recommendation. The average yield responses to N, P2O5, and K2O were 26.6, 13.9, and 16.6 t/ha, the relative yields were 0.70, 0.84, and 0.84; also, it was concluded that the agronomic efficiencies were 114.3, 108.5, and 89.4 kg/kg on average, respectively. From these datasets, the theoretical basis of recommended fertilization was established. It was found that there was a significant negative correlation between N, P, and K indigenous nutrient supply and the yield response to N, P2O5, and K2O, and a significant negative linear correlation between yield response and the relative yield of N, P2O5, and K2O. There was also a significant one-dimensional quadratic function relationship between yield response and agronomic efficiency in Chinese cabbage. Then, two years of field experiments for Chinese cabbage were conducted to verify the fertilizer recommendation. It was concluded that fertilizer recommendation for Chinese cabbage based on yield response and agronomic efficiency was a sustainable way for farmland utilization, not only economically and suitably satisfying its application on fields of different sizes, but also taking into account the indigenous nutrient supply and the interaction between N, P, and K, having shown the advantages of high efficiency, especially when the conditions such as soil testing and plant diagnosis were not sufficient.

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Schuesslbauer, Annika F., Judith Volmer, and Anja S. Göritz. "The Goal Paves the Way." Journal of Career Development 45, no. 5 (July 11, 2017): 489–503. http://dx.doi.org/10.1177/0894845317718348.

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To cope with a changing work world, organizations look for job applicants who rate high on career adaptability. The present study investigates whether leadership influences employees’ career adaptability. Specifically, we investigated whether inspirational motivation fosters career adaptability and whether employees’ future temporal focus mediates this impact. With a time lag of 3 months, 766 employees working in various branches answered two questionnaires. Inspirational motivation by their leaders predicted employee career adaptability, mediated by employee future temporal focus. Findings yield implications for personnel recruitment and development.

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Khan, MAI, MHR Hira, S. Rahaman, ZR Moni, MAM Hussen, T. Someya, and K. Ueno. "Way of compost application for organic farming." SAARC Journal of Agriculture 17, no. 1 (August 25, 2019): 211–17. http://dx.doi.org/10.3329/sja.v17i1.42774.

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Application of composts is an alternative of synthetic agrochemicals for eco-friendly farming. Work is limited on the effective and economic way of compost application in Bangladesh. A study was done at the Field Science Center, Saga University, Japan with green tea waste – rice bran compost (GRC) application. Radish (Raphanus sativus L.), spinach (Spinacia oleracea L.) and komatsuna (Brassica rapa var. pervidis) were used as test plants. GRC was applied at 1.0 kg m-2 by mulching on soil after seeding. It enhanced seed germination, seedling growth and improved crop yield of spinach and radish grown in a controlled condition. Among the two application methods, post-sowing mulching (PSM) reduced water loss from upper soil surface, thus enhanced seed germination and better growth compared to pre-sowing incorporation (PSI) system. This study also suggests that improper compost incorporation to soil may impair seed germination, seedling growth and likely crop yield. SAARC J. Agri., 17(1): 211-217 (2019)

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Rodina, Liudmila L., Xenia V. Azarova, Jury J. Medvedev, Dmitrij V. Semenok, and Valerij A. Nikolaev. "Novel photochemical reactions of carbocyclic diazodiketones without elimination of nitrogen – a suitable way to N-hydrazonation of C–H-bonds." Beilstein Journal of Organic Chemistry 14 (August 28, 2018): 2250–58. http://dx.doi.org/10.3762/bjoc.14.200.

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The sensitized photoexcitation of 2-diazocyclopentane-1,3-diones in the presence of THF leads to the insertion of the terminal N-atom of the diazo group into the α-С–Н bond of THF, producing the associated N-alkylhydrazones in yields of up to 63–71%. Further irradiation of hydrazones derived from furan-fused tricyclic diazocyclopentanediones culminates in the cycloelimination of furans to yield 2-N-(alkyl)hydrazone of cyclopentene-1,2,3-trione. By contrast, the direct photolysis of carbocyclic diazodiketones gives only Wolff rearrangement products with up to 90–97% yield.

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Gurley, C. "Plastic Yield-Line Analysis of Torsion-Free Two-Way and Flat Slabs." Australian Journal of Structural Engineering 10, no. 1 (January 2009): 1–10. http://dx.doi.org/10.1080/13287982.2009.11465028.

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D.S., KADRALIEV, PHILIPPOVA A.V., GULIN A.V., SHCHEBARSKOVA Z.S., and ISAEV K.V. "YIELD AND ENERGY VALUE OF GRASS MIXTURES DEPENDING ON THE SEED WAY." AIC development problems of the region 2, no. 42 (April 2020): 70–80. http://dx.doi.org/10.15217/issn2079-0996.2020.2.70.

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Villanueva-Mosqueda, Eduardo, and Michael J. Havey. "Genetic Analyses of Seed Yield in Onion." Journal of the American Society for Horticultural Science 126, no. 5 (September 2001): 575–78. http://dx.doi.org/10.21273/jashs.126.5.575.

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Development of two-way onion (Allium cepa L.) hybrids is difficult due to poor seed yields on inbred female parents. Seed yield of onion is affected by inbreeding depression and the seed-production environment. A standard diallel was used to estimate combining abilities for seed yield among seven inbred onion lines. Males and hybrids differed significantly (P < 0.05) for seed yields. Combinations of relatively high-by-high seed-yielding inbred parents were not always the best combinations; combinations of medium-by-medium or medium-by-high seed yielders also produced good F1 seed yielders. For the seven inbred lines, significant correlations (P < 0.05) were observed between mean seed yield per bulb and scape height. Parent-offspring regressions revealed no significant relationship between seed yields of randomly selected, open-pollinated bulbs and their S1 families. Results indicate that relative seed yields of individual bulbs after self-pollination cannot be used to predict seed yields of progeny families. However, the seed yield of inbred lines of onion may reflect the potential seed yield of F1 male-sterile lines.

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Sritharan, Kandha, Mohan Subramaniam, Xaviar Arulandoo, and Mohd Rafii Yusop. "Yield and Bunch Quality Component Comparison between Two-Way Crosses and Multi-Way Crosses of DxP Oil Palm Progenies." Sains Malaysiana 46, no. 9 (September 30, 2017): 1587–95. http://dx.doi.org/10.17576/jsm-2017-4609-30.

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Chowdhury, Afroza, Abdullah Al Mamun, and Niaz Md Farhat Rahman. "Valuation of Weather Manifested Rice Cultivation in Bangladesh: A Way Forward." American International Journal of Agricultural Studies 2, no. 1 (October 25, 2019): 62–64. http://dx.doi.org/10.46545/aijas.v2i1.115.

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Good crop yield entirely depends on good management practice and quality management of crops allied with authentic weather forecasting can reduce risk, crop damage, cost of production and increase the yield as well. Bangladesh Rice Research Institute (BRRI) had aimed this study for quantifying the financial benefit of forecasting and validating micro climatological factors and their impacts on paddy production through experimentation and arranging for weather based agro meteorological advisory service delivery to the farmers applying the tools of ICT. A next-generation meso-scale numerical weather prediction system, WRF (Weather Research and Forecasting) model was used for generating atmospheric simulations based on real data (observations, analyses or idealized conditions). Field experiment was conducted in the areas of five different agro microclimatological conditions for Boro rice production, namely; Gazipur, Habiganj, Rajshahi, Barishal and Satkhira. Then the experimental fields were managed according to the weekly management advisory based on weather forecasts. Results obtained suggest that the application of weather predictability accrued a comparative rice yield benefit of 9-12% and a 3–5% reduction in the cost of cultivation. Countrywide application of agro-meteorological advisory service may pave the way for averting adverse climatic effects on agriculture.

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Okonya, Joshua S., and Brigitte L. Maass. "Potential of Cowpea Variety Mixtures to Increase Yield Stability in Subsistence Agriculture: Preliminary Results." International Journal of Agronomy 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/515629.

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CowpeaVigna unguiculata(L.) Walp. is an important leafy vegetable and grain legume in Uganda. Unlike in commercial agriculture, where variety mixtures are known to give higher and more stable yields, the performance of cowpea variety mixtures in subsistence agriculture is little known. Mixtures containing up to four cowpea varieties were subjected to all possible 2-way, 3-way, and 4-way combinations. These cowpea varieties and mixtures were grown at three locations in Soroti and Kumi districts in order to assess the relative mixture effect, defined as: Mixture effect (%) = (mixture yield − pure line component average)/pure line component average × 100. Yield data was subjected to one-way ANOVA using the GLM procedure of SYSTAT. PLABSTAT was used to generate ecovalence (Wi) values as a measure of stability with low ecovalence values indicating higher stability. The total cowpea dry matter (DM) yield was in the range of 3.7–6.7 g/m2(leaf) and 12.1–36.7 g/m2(grain), respectively. Mixture effects were between −9.3–14.0% (leaf) and −30.3–21.9% (grain). Yield stability spanned Wi= 0.06–5.30 (leaf) andWi= 4.45–894.84 (grain). The results suggested that yields of cowpea variety mixtures grown in marginal environments were more stable than of single varieties but not all mixtures yielded more than single varieties.

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Chen, Chang, Min Xiao, Lingling Deng, Lihui Yuan, and Peng Zhang. "An effective way to biosynthesizeα-glucosyl eugenol with a high yield byXanthomonas maltophilia." Pharmaceutical Biology 50, no. 6 (November 9, 2011): 727–31. http://dx.doi.org/10.3109/13880209.2011.624104.

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Paréja, Pierre, Michel Mercy, Jean-Claude Gachon, Annie Amariglio, and Henri Amariglio. "A Way to Higher Hydrocarbons from Methane with Sizable Yield and Good Selectivity." Industrial & Engineering Chemistry Research 38, no. 3 (March 1999): 1163–65. http://dx.doi.org/10.1021/ie980582h.

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Liu, Hongmei, and Donghuan Qin. "High Yield CdSe Nanocrystalline Fabrication by a Facial Way Based on Complex Ligands." Integrated Ferroelectrics 135, no. 1 (January 2012): 165–70. http://dx.doi.org/10.1080/10584587.2012.685696.

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Deegen, Peter, Richard J. Brazee, and Olli-Pekka Kuusela. "The Sixth International Faustmann Symposium: The mathematical way of thinking continues to yield." Forest Policy and Economics 120 (November 2020): 102298. http://dx.doi.org/10.1016/j.forpol.2020.102298.

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Sudesh, Kyanahalli Somesh, Muddappa Anjanappa, Dalasanuru Chandregowda Manjunathagowda, Nagaraju Shilpashree, Amruthaswamy Bharathkumar, and Narasipura Revappa Praveenkumar. "Grafting in brinjal (Solanum melongena L.): a sustainable way of increasing the yield." Vegetos 34, no. 1 (February 11, 2021): 263–69. http://dx.doi.org/10.1007/s42535-020-00171-0.

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Kulkarni, Vikas V. "Evaluation of three way cross hybrids and single cross hybrids in sunflower Helianthus annuus." Journal of Applied and Natural Science 8, no. 2 (June 1, 2016): 555–58. http://dx.doi.org/10.31018/jans.v8i2.835.

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Thirty-two sunflower, Helianthus annuus three way cross hybrids along with five popular single cross hybrids evaluated for yield and component traits during Kharif-2013. Out of 32 three way cross sunflower hybrids tested, none were significantly superior over single cross best check. However, two three way cross hybrids (CMS-207A X IB-104)X DOR-R3 (2066 kg/ha) and (CMS-148A X IB-101)XDOR-R3 (20132 kg/ha) recorded on-par seed yield compared to commercial single cross hybrid check RSFH-130. The three-way-cross hybrids were early for 50% flowering compared to single cross hybrids and were on-par for other quantitative characters viz., plant height, head diameter, volume weight and 100 seed weight. Looking into the advantage of reduced seed production cost and on par yield performance, identified two three-way cross hybrids needs to be tested over years and for different locations to find their suitability for commercial cultivation.

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Gutierrez-Espeleta, Edgar E., Kenneth J. Koehler, and Carl W. Mize. "Fitting an Equation to a Two-Way Table." Northern Journal of Applied Forestry 3, no. 1 (March 1, 1986): 33–34. http://dx.doi.org/10.1093/njaf/3.1.33.

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Abstract A number of yield tables, site index curves, and volume tables were developed graphically. Many of these tables exist only in table form and not in equation form. This paper describes a quick technique that can be used to develop a regression equation that will estimate values in many of these two-variable tables. These equations can be incorporated into computer programs for easier calculation of values. North. J. Appl. For. 3:33-34, Mar. 1986.

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SALEH, G. B., D. ABDULLAH, and A. R. ANUAR. "Performance, heterosis and heritability in selected tropical maize single, double and three-way cross hybrids." Journal of Agricultural Science 138, no. 1 (February 2002): 21–28. http://dx.doi.org/10.1017/s0021859601001757.

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A series of tropical maize hybrids, involving 10 single, four double and four three-way crosses were evaluated with their parental inbred lines and three control varieties, at Universiti Putra Malaysia, Serdang, Malaysia, in a randomized complete block design, with three replications. The objectives were to identify hybrids superior for yield, yield components and other agronomic traits, to estimate heterosis revealed by the hybrids, and to estimate broad-sense heritability for important characters in the populations. The hybrids were found to vary highly for grain yield and most other traits measured. High estimates of heterosis were shown by grain yield, ear weight and grain weight per ear, moderate for plant and ear heights, shelling percentage, ear diameter, number of kernel rows per ear, number of kernels per ear row and 100-grain weight. The hybrids flowered and matured earlier than their respective inbred parents. Estimates of broad-sense heritability also varied with characters. Moderate heritability was shown for grain yield indicating a substantial amount of genetic variation in this population of hybrids. Low and negligible heritability for days to silking and 100-grain weight indicate that these traits were very much influenced by environmental factors. Based on the overall performance of the hybrids, the single cross, SC-2, the double cross, DC-11 and the three-way cross, TWC-15, were found to have high potential. No obvious differences were observed in performance among the three categories of hybrids, the single, double and three-way crosses.

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Jedel, P. E., J. H. Helm, and P. A. Burnett. "Yield, quality and stress tolerance of barley mixtures in central Alberta." Canadian Journal of Plant Science 78, no. 3 (July 1, 1998): 429–36. http://dx.doi.org/10.4141/p97-137.

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Intraspecific mixtures may be a means of enhancing the genetic variability of modern crops while retaining the advantages of yield, quality, and stress tolerance of modern cultivars. Two- and three-way barley (Hordeum vulgare L.) mixtures of the cultivars Abee, Noble, Tukwa and Virden, were studied at Botha, Lacombe and Olds, Alberta, from 1992 to 1994. Treatments consisted of the four cultivars as monocrops and in 6 two-way and 3 three-way mixtures grown at a seeding rate of 250 seeds m−2. Tukwa as a monocrop had the highest rank and best stability for grain yield of all the treatments. Grain yields of the mixtures usually fell between the yields of the respective monocrops and were often better than the weighted mean yield of the monocrops indicating that many mixtures were more effective at using resources than the monocrops. Of the mixtures, Tukwa:Noble, Tukwa:Abee:Virden and Noble:Virden had the best rankings and stability for grain yield. Test weights, kernel weights, percent thins, lodging, disease incidence and protein content of the mixtures were intermediate to those of the monocrops. Mixtures containing the two-rowed cultivar Abee had higher test weight and protein content than mixtures composed of only six-rowed cultivars. Lodging and disease ratings were lower for the mixtures composed of only six-rowed cultivars than those with Abee. In these intraspecific barley mixtures, Virden was often the most competitive cultivar while Tukwa was the least. Competitive ability was not associated with yield potential, tillering, or row-type. Key words: Hordeum vulgare L., mixtures, yield, quality, stress tolerance

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Altay, F., and N. Bolat. "Effect of soilborne wheat mosaic virus on winter wheat yield and yield components." Acta Agronomica Hungarica 52, no. 3 (November 1, 2004): 309–17. http://dx.doi.org/10.1556/aagr.52.2004.3.12.

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Soil-borne wheat mosaic virus (SBWMV) is an important disease of wheat production areas throughout the world, causing a great reduction in wheat and barley yields. The most effective way of controlling the disease is the use of resistant varieties in infested areas. In this study, the effects of SBWMV on yields and some yield components of eight susceptible, one moderately susceptible/resistant and nine resistant varieties were evaluated using data from 9 virus-infested and 6 non-infested sites in Eskisehir, Turkey over 6 years. The susceptible varieties yielded 5.35% more than resistant varieties in non-infested sites, while they gave 28.98% lower yield in infested sites. Significant yield loss differences were observed between the varieties in infested sites. Decreases were also observed in yield components at various levels. This study showed that SBWMV is an important disease, which survives in soil for long periods and causes significant yield decreases in wheat. Recently developed varieties have good resistance to the disease and are recommended to farmers in infested areas. Abbreviations: SBWMV, soil-borne wheat mosaic virus

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Pereira, Rodrigo Junqueira, Denise Rocha Ayres, Lenira El Faro, Aníbal Eugênio Vercesi Filho, Rui da Silva Verneque, and Lucia Galvão de Albuquerque. "A new way to measure milk yield persistency: a genetic point of view with application to Gyr (Bos indicus) cattle." Journal of Dairy Research 82, no. 4 (August 5, 2015): 385–90. http://dx.doi.org/10.1017/s0022029915000448.

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The objective of this work was to estimate genetic parameters for a measure of persistency of milk yield and to evaluate its association with 305-d cumulative milk yield and lactation length. 12 346 records from 8202 dairy Gyr cows including lactations up to fifth calving were used. The measure of persistency was obtained from one of the parameters of a quadratic model that describes the cumulative yield across lactation as a function of days in milk. A three-trait multivariate analysis was done. Heritability and repeatability for persistency were 0·08 and 0·21, respectively. Deviance Information Criterion provided evidence that the additive genetic covariance between the measure of persistency studied and 305-d cumulative yield is zero. Genetic correlations between persistency and lactation length were 0·50 and 0·27 for first or all lactations, respectively. Milk yield persistency as measured in this study has low heritability. Selection for persistency can increase lactation length. The measure of milk yield persistency studied here is genetically independent of total milk yield and can be included in routine genetic evaluations of dairy cattle.

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Le Quesne, Will J. F. "Are flawed MPAs any good or just a new way of making old mistakes?" ICES Journal of Marine Science 66, no. 1 (December 5, 2008): 132–36. http://dx.doi.org/10.1093/icesjms/fsn201.

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Abstract Le Quesne, W. J. F. 2009. Are flawed MPAs any good or just a new way of making old mistakes? – ICES Journal of Marine Science, 66: 132–136. The case for Marine Protected Areas (MPAs) is often supported by the observation that present fisheries management has failed. This overlooks the fact that, often, management plans are not implemented in accordance with advice and that subsequent regulations are frequently violated. Evidence is emerging that MPAs may be equally open to mismanagement, either because MPAs are smaller than recommended or through lack of compliance. Therefore, it is interesting to ask whether MPAs would also fail if they are not properly implemented or enforced. A population model was used to examine this question. The model demonstrates that biomass and yield are reduced, and can collapse under “bad” MPA management. When illegal, unreported, or unregulated fishing occurred within the MPA, yield and biomass declined almost linearly with increasing poaching pressure. Yield was more robust than biomass to the effects of making MPAs smaller than the optimum size for limited reductions in MPA size. Varying the degree of mobility had little impact on the response of yield and biomass. This analysis demonstrates the vulnerability of MPAs to design and governance failings, and the importance of considering enforcement during MPA design.

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GELETA, L. F., and M. T. LABUSCHAGNE. "Comparative performance and heterosis in single, three-way and double cross pepper hybrids." Journal of Agricultural Science 142, no. 6 (December 2004): 659–63. http://dx.doi.org/10.1017/s0021859605004934.

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Eight single, six three-way and six double cross hybrids were evaluated with a standard control to assess their yield potential and agronomic performance. The study was conducted in the field and greenhouse using a randomized complete block design with three replications at the University of the Free State during 2002/03. The three categories of hybrids performed differently and showed high variation for the majority of characters studied. Three-way cross hybrids showed better performance for days to flowering (70·9 days after sowing), fruit diameter (3·2 cm) and fruit weight (30·3 g/fruit). As expected, single cross hybrids were the most uniform followed by three-way cross hybrids. Three-way cross hybrids showed 36·1 and 13·6% heterosis for fruit yield and fruit length, respectively. Higher mean heterosis for fruit yield (35·6%), fruit number (24·0%) and fruit weight (16·9%) was also observed in double cross hybrid. This study shows that three-way and double cross hybrids can be used in pepper hybrid breeding. Selection of inbred lines for crossing from a similar market group can decrease heterogeneity in these categories of hybrids.

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Reuterwall, Marcus, Alexander Waldthaler, Jeanne Lubbe, Nils Kadesjö, Raffaella Pozzi Mucelli, Marco Del Chiaro, Matthias Lohr, and Urban Arnelo. "Bimodal ERCP, a new way of seeing things." Endoscopy International Open 08, no. 03 (February 21, 2020): E368—E376. http://dx.doi.org/10.1055/a-1070-8749.

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Abstract Background and study aims Conventional endoscopic retrograde cholangiopancreatography (ERCP) is hampered by two-dimensional visualization, post-procedural adverse events (AEs), and exposure to ionizing radiation. Bimodal ERCP might mitigate these challenges, but no reports of its use are available to date. The aim of this study was to explore the feasibility of bimodal ERCP, while investigating its potential clinical yield. Patients and methods This was a retrospective observational study of patients that underwent bimodal ERCP in a single tertiary academic referral center. Thirteen patients undergoing conventional ERCP had a previously T2-weighted isotropic 3 D TSE MRCP sequence aligned and fused with the two-dimensional image generated from the fluoroscopy c-arm unit in real time. Results Over a 2-month period, 13 patients with a mean age of 54 underwent bimodal ERCP for bile duct stricture (61.5 %), complex cholelithiasis (7.7 %) and ductal leakage (30.1 %). Bimodal ERCP was feasible in all 13 cases, and image quality was assessed as “good” in 11 patients (84.6 %). Bimodal ERCP aided in visualizing the lesion of interest (76.9 %), assisted in understanding the 3 D anatomy of the biliopancreatic ductal system (61.5 %), and aided in finding a favorable position for the c-arm (38.4 %) for subsequent therapeutic intervention. Conclusions This first report on bimodal ERCP proves its feasibility and suggests that it may assist in increasing both the diagnostic and therapeutic yield of ERCP, while at the same time decreasing AEs during and after ERCP. Its main application might lie in treatment of complex intrahepatic disease.

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Abdulaziz, Mohammad. "Plan-Length Bounds: Beyond 1-Way Dependency." Proceedings of the AAAI Conference on Artificial Intelligence 33 (July 17, 2019): 7502–10. http://dx.doi.org/10.1609/aaai.v33i01.33017502.

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We consider the problem of compositionally computing upper bounds on lengths of plans. Following existing work, our approach is based on a decomposition of state-variable dependency graphs (a.k.a. causal graphs). Tight bounds have been demonstrated previously for problems where key dependencies flow in a single direction—i.e. manipulating variable v1 can disturb the ability to manipulate v2 and not vice versa. We develop a more general bounding approach which allows us to compute useful bounds where dependency flows in both directions. Our approach is practically most useful when combined with earlier approaches, where the computed bounds are substantially improved in a relatively broad variety of problems. When combined with an existing planning procedure, the improved bounds yield coverage improvements for both solvable and unsolvable planning problems.

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Pilecco, Isabela Bulegon, Michel Rocha da Silva, Giovana Ghisleni Ribas, Ary Jose Duarte Junior, Nereu Augusto Streck, and Alencar Junior Zanon. "Can Brazil produce enough rice to meet demand in 2028?" Ciência e Natura 42 (February 17, 2020): e33. http://dx.doi.org/10.5902/2179460x42318.

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The objectives of the study were estimate the additional yield that may be achieved by reducing the yield gap in actual rice area, evaluate if irrigated rice production meet future demand for rice without increase area and determine sowing date that allows maximum yield potential. The yield gap (Yg) was determined by the difference between yield potential (Yp) and actual yield (Ya). The Ya was obtained from surveys applied to the rice producers. The Ya was 51% of Yp, and the Yg was 49%. In a scenario of high demand, if the yields follow the historical rate of gain, the production should not be sufficient to meet projected demand without 6% expansion of the currently cultivated area, whereas for a scenario of low demand it should be sufficient. Moreover, for the low and high demand scenarios, if the national average yield reaches 80% of the rice Yp, a reduction until 29% in the current irrigated rice area can occur. Sowing between September and mid-November is a way of making it possible to obtain yields close to 80% of Yp without increasing production costs. This study can be used as an aid in the search for world food security.

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Amira S. El Senousy, Sabah H. El Gayed, Saber H.A. Mostafa, Saeed Z.A. Zidan, Mohamad Louai M. Hariri, Nebal D. El Tanbouly, and Essam Abdel-Sattar. "Optimization of linseed cultivation, a promising way to enhance its secoisolariciresinol diglucoside lignan content." International Journal of Research in Pharmaceutical Sciences 10, no. 3 (July 12, 2019): 1698–710. http://dx.doi.org/10.26452/ijrps.v10i3.1359.

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There is strong evidence on the anticancer properties of secolariciresinol diglucoside (SDG), the predominant flaxseed lignan, especially for mammary and prostatic carcinomas. Although the effect of cultivar and location on flaxseed SDG level has been reported, much less is traced regarding the influence of agronomical treatments. The purpose of this study is to determine if agricultural management practices could enhance SDG accumulation in flaxseed. We studied the effect of irrigation frequencies (I), added nutrients (N, zinc and humic acid) and fertilization treatments (F) and their interactions on SDG level and seed yield of the Egyptian flax cultivar Giza 9. Samples were extracted and analyzed for SDG, after alkaline hydrolysis, using HPLC-UV method. The concentration of SDG and its yield varied between 415.55-845.95 mg/100 g whole seeds and 1.77-4.05 Kg/feddan on a dry weight basis, respectively according to different agricultural treatments. I, N and F factors and their interactions had a significant effect on SDG. I × N × F interaction contributed to the majority of SDG variation (31.81 %), followed by I factor (27.96 %), whereas seed yield was more affected by F factor (72.7 %). The I × F interaction was the only significant interaction on the seed yield contributing only for 0.43% of the variance. Moderate irrigation frequency with the humic acid foliar application and mineral nitrogen fertilizer was the best combination for achieving the highest SDG levels. Using optimum agronomic practice would benefit the nutraceutical industry by optimizing flaxseed lignan content and hence enhancing its anticancer, health-promoting effect.

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Karaşahin, Muhammed, Özgür Dündar, and Ahmet Samancı. "The Way of Yield Increasing and Cost Reducing in Agriculture: Smart Irrigation and Fertigation." Turkish Journal of Agriculture - Food Science and Technology 6, no. 10 (October 1, 2018): 1370. http://dx.doi.org/10.24925/turjaf.v6i10.1370-1380.1985.

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The plants can only use the around 50% of the applied nitrogenous fertilizer. It has been observed that the dynamic fertigation applications help to improve the fertilizer effectiveness. In the dynamic fertigation approach, water and plant nutritional elements are calculated and determined according to the plant dry matter generation rate and root volume. Smart agriculture is an knowledge based decision making approach established upon quantification and observations of the changes in each level of production. With this system, saving can be provided by only supplying the plant’s daily need of water and fertilizer and preventing the excess irrigation and fertilizing, so yield increase can be achieved by keeping away the plants from the stress conditions. Agricultural production can be increased five times by irrigation but shortening in water sources and decrease in quality reasoned by fast growing are restricted of irrigation which is the main user of freshwater sources. Increasing the water and fertilizer effectiveness with the smart irrigation techniques which can save water and fertilization management applications are the essential strategies to be able to reach the yield increase in order to supply the growing food needs of developing population and help to minimize the environmental damage. In the study, the researches and applications related to smart irrigation and fertilization were tried to be included in a wide scope and tried to keep a light to obtain higher yield with less water and fertilizer use in agriculture.

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Pachenari, Alireza, and Abolghassem Keramati. "Progressive collapsed zone extent estimation in two-way slab floors by yield line analysis." Magazine of Concrete Research 66, no. 13 (July 2014): 685–96. http://dx.doi.org/10.1680/macr.13.00249.

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van Dijk, B., R. van der Vos, and A. J. Hoff. "Rota-MARY, a novel way of measuring anisotropic magnetic field effects on reaction yield." Chemical Physics Letters 226, no. 1-2 (August 1994): 206–12. http://dx.doi.org/10.1016/0009-2614(94)00706-3.

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Liang, Litong, Wei Huang, Fuxing Gao, Xiaogang Hao, Zhonglin Zhang, Qian Zhang, and Guoqing Guan. "Mild catalytic depolymerization of low rank coals: a novel way to increase tar yield." RSC Advances 5, no. 4 (2015): 2493–503. http://dx.doi.org/10.1039/c4ra13029d.

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Catalyst dissolved in an accessory ingredient and was sprayed into coal particles, in this case, even the active catalyst content was only 0.1 wt%, a good catalytic effect could be generated for the depolymerization of coal.

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Chávez, Ernesto A. "Maximum sustainable yield, maximum economic yield and sustainability in fisheries." Journal of Aquaculture & Marine Biology 9, no. 1 (2020): 15–17. http://dx.doi.org/10.15406/jamb.2020.09.00271.

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A brief review of the concept of Maximum Sustainable Yield (MSY) used in fisheries management is discussed. The convenience of assessing the exploited stocks with the aid of simulation is advised, because implies the possibility to analyze the age structure of the fishery in more detail, as compared to the traditional methods of fish stock assessment. Emphasis is given to the use of the MSY as limit reference point because as long as the Fishing Mortality or fishing effort required for that point is kept at lower values, the fishery will have a good chance to be sustainable. A mention of the Maximum Economic Yield is made, proposing its use a target for the management, because it is reached in general with lower F values then that for the MSY, and this way keeping the fishery in a healthy condition.

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FAYEUN, Lawrence, and Sayo SESAY. "Evaluation of Drought Tolerant Top Cross and Three-Way Cross Maize Hybrids for Grain Yield and Related Traits in Three Agro-Ecological Zones of Southwest Nigeria." Notulae Scientia Biologicae 11, no. 3 (September 30, 2019): 414–21. http://dx.doi.org/10.15835/nsb11310338.

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Superiority of hybrid maize cannot be overemphasized. Different types of hybrids are developed by plant breeders to improve productivity and multi-locational evaluation of these hybrids prior to release is necessary to select the best. The objectives of this study were to identify maize hybrids with superior agronomic potentials and compare the performance of top-cross and three-way cross hybrid maize varieties for grain yield and related traits under rain-fed condition in three different locations (Abeokuta, Ibadan and Akure) of Southwest Nigeria. The study consisted of ten hybrids each of top-cross and three-way cross hybrid varieties, tested with two checks. At each location, the experiment was laid out in randomised complete block design with three replications. The results showed that effects of locations, genotypes and genotype x location interactions were highly significant (p<0.01) for all the traits evaluated. Significant differences were also revealed between the top-cross and three-way cross hybrids for all the traits evaluated except days to 50% tasseling, ear diameter and 100-grain weight. The top-cross hybrids were superior over the three-way cross hybrids for grain yield by 5.25%. The hybrids ‘M0926-7’, ‘M0926-8’, ‘M1026-11’, ‘M1026-3’, ‘M1226-2’ (top-cross hybrids), ‘M1124-24’, ‘M1124-27’, ‘M1124-31’, ‘M1227-6’ and ‘M1227-7’ (three-way cross hybrids) showed highest stable yields across the three locations. Hybrids ‘M0926-7’ (top-cross hybrid) and ‘M1124-24’ (three-way cross hybrid) that expressed early flowering with higher grain yield are recommended for drought stress prone areas because of their abilities to tolerate drought through escape.

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Kim, Jeong-Ho, Yong-Han Yoon, Il-Doo Kim, Sanjeev Kumar Dhungana, and Dong-Hyun Shin. "Pu-erh Tea Extract Treatment Could Be an Efficient Way to Enhance the Yield and Nutritional Value of Soybean Sprout." Molecules 25, no. 17 (August 25, 2020): 3869. http://dx.doi.org/10.3390/molecules25173869.

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Soybean sprouts are one of the most inexpensive and nutritious food items that can be easily grown year-round. Several studies have been conducted to increase their yield and nutritional values. This study was carried out to examine the effects of Pu-erh tea extracts on the production and nutrients content of soybean sprouts. Soybean seeds were soaked in 1%, 2%, or 3% (w/v) tea extracts, or tap water, before keeping for sprout cultivation; the sprout samples were named PE-1, PE-2, PE-3, and the control, respectively. The sprout yields were increased by up to 17% in PE-2 and PE-3 than in the control. The vitamin C, total free amino acid, total mineral, total isoflavone, total polyphenol, and flavonoid contents as well as the antioxidant potentials of the tea extract-treated sprouts were higher than those of the control. The results indicated that pre-soaking soybean seeds in 2% Pu-erh tea extracts could offer an easy, inexpensive, and efficient way to improve the yield and nutritional value of soybean sprouts.

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Forbes, Duncan A. "Reverse engineering the Milky Way." Monthly Notices of the Royal Astronomical Society 493, no. 1 (January 29, 2020): 847–54. http://dx.doi.org/10.1093/mnras/staa245.

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ABSTRACT The ages, metallicities, alpha-elements, and integrals of motion of globular clusters (GCs) accreted by the Milky Way from disrupted satellites remain largely unchanged over time. Here we have used these conserved properties in combination to assign 76 GCs to five progenitor satellite galaxies – one of which we dub the Koala dwarf galaxy. We fit a leaky-box chemical enrichment model to the age–metallicity distribution of GCs, deriving the effective yield and the formation epoch of each satellite. Based on scaling relations of GC counts we estimate the original halo mass, stellar mass, and mean metallicity of each satellite. The total stellar mass of the five accreted satellites contributed around 109 M⊙ in stars to the growth of the Milky Way but over 50 per cent of the Milky Way’s GC system. The five satellites formed at very early times and were likely accreted 8–11 Gyr ago, indicating rapid growth for the Milky Way in its early evolution. We suggest that at least three satellites were originally nucleated, with the remnant nucleus now a GC of the Milky Way. 11 GCs are also identified as having formed ex situ but could not be assigned to a single progenitor satellite.

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Hamouz, K., J. Lachman, P. Dvořák, and V. Pivec. "The effect of ecological growing on the potatoes yield and quality." Plant, Soil and Environment 51, No. 9 (November 19, 2011): 397–402. http://dx.doi.org/10.17221/3603-pse.

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In the years 1995–1997 the effect of ecological growing on the yield and selected parameters of quality of consumer potatoes (in comparison with conventional way) were investigated. The ecological way of growing differed in the lack of chemical protection against diseases and pests and industrial fertilizers. Field trials were realised with seven varieties (Impala, Karin, Agria, Korela, Rosella, Santé and Ornella) on two sites (Uhříněves and Valečov). The ecological way of growing had markedly negative effect on the yield (decrease by 36%). In qualitative parameters the ecological way increased inconclusively polyphenol content (by 10.2%), decreased inconclusively nitrate content (by 11.0%) and reducing sugars (by 22%). It did not affect dry matter content, resistance of tubers to mechanical damage, table value and glycoalkaloid content. Variety Santé achieved the best results from the point of view of the yield and majority of qualitative parameters among varieties. Qualitative parameters of ecologically cultivated potatoes were significantly affected by the year of cultivation.

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Tay, Meng Guan, Mee Hing Tiong, Ying Ying Chia, Suzie Hui Chin Kuan, and Zhi-Qiang Liu. "A Way to Improve Luminescent Efficiency of Bis-Chalcone Derivatives." Journal of Chemistry 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/3608137.

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Chalcone related compounds have been reported as a poor luminescence molecule due to the quenching processes from the intramolecular torsional motions andcis-transisomerization in theα,β-unsaturated ketone moiety. Despite this limitation, we found a way to improve the luminescent efficiency of our bis-chalcone derivative. In this project, two series of bis-chalcone compounds have been synthesized through Claisen-Schmidt condensation by reacting terephthaldehyde or 2,5-dimethoxyterephthaldehyde with the respective R-acetophenone [where R = H (1aand2a) andortho-hydroxy (1band2b)] in 1 : 2 mole ratio. The presence of a methoxy (OMe) substituent on the central phenyl ring of bis-chalcone has weakened the C=C bond at theα,β-unsaturated ketone moiety of2aand2b. Interestingly, the OMe group has improved the emission efficiency of the bis-chalcone; that is, the quantum yield of1ain DCM solution was not able to be determined due to poor luminescence, but the quantum yield of2ain DCM solution was improved to 0.57. In addition, compound2aalso shows solvatochromism effect where theλmaxemission shifted from 499 nm in nonpolar solvents (benzene) to 523 nm in polar solvents (acetonitrile). This work provides another way to improve the emission efficiency of chalcone related compounds apart from using the complexation method which has been reported before.

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Scotti, Nicola, Federica Zaccheria, Claudio Evangelisti, Rinaldo Psaro, and Nicoletta Ravasio. "Dehydrogenative coupling promoted by copper catalysts: a way to optimise and upgrade bio-alcohols." Catalysis Science & Technology 7, no. 6 (2017): 1386–93. http://dx.doi.org/10.1039/c6cy02670b.

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Lee, Sui Mae, Miriam Ender, Rajan Adhikari, John M. B. Smith, Brigitte Berger-Bächi, and Gregory M. Cook. "Fitness Cost of Staphylococcal Cassette Chromosome mec in Methicillin-Resistant Staphylococcus aureus by Way of Continuous Culture." Antimicrobial Agents and Chemotherapy 51, no. 4 (February 5, 2007): 1497–99. http://dx.doi.org/10.1128/aac.01239-06.

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ABSTRACT We examined the effect of introducing type I or IV staphylococcal cassette chromosome mec (SCCmec) elements on the growth yield of Staphylococcus aureus in glucose-limited continuous culture. Type I showed increased glucose consumption and ATP demand per gram of cells synthesized and decreased cell yield compared to those of the parent strain. In contrast, type IV SCCmec elements had no adverse energetic effect.

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Ayres, T. J., R. Kelkar, and K. B. Kennett. "Intersection Right-of-Way: What is an Immediate Hazard?" Proceedings of the Human Factors and Ergonomics Society Annual Meeting 49, no. 9 (September 2005): 872–75. http://dx.doi.org/10.1177/154193120504900907.

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Vehicle codes require that a driver entering an intersection should yield right-of-way if an approaching vehicle is close enough to be an immediate hazard. This paper discusses a framework for contributions from human factors and vehicle kinematics to right-of-way questions, based on defining immediate hazard as a situation requiring an aggressive avoidance maneuver. A variety of issues that arise can be addressed with existing technical literature, while others suggest a role for further empirical research. Quantitative analyses reveal the relative importance of factors such as distance perception, response latency and initial speed.

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Titoria, Puneet, Thiru M. Siva, and Tass Malik. "An assessment of fine-needle sampling techniques." Annals of The Royal College of Surgeons of England 92, no. 5 (July 2010): 429–31. http://dx.doi.org/10.1308/rcsann.2010.92.5.429.

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INTRODUCTION Fine-needle cytology sampling, when adequate, is highly sensitive and specific for tissue-type diagnosis, with figures of 94% and 88%, respectively. This study explores the technique of sampling to reduce interoperator variability and ensure maximal tissue yield. MATERIALS AND METHODS Apple cortical tissue was sampled as a proxy of human lymph node. A total of 200 samples, by four methods, with 50 by each sampling method, were taken using blue venepuncture needles and weighed to assess tissue yield. Results were analysed using one-way analysis of variance and Tukey's HSD test. Comparable yields, by mass, were achieved by both straight lance and coring techniques (P > 0.05). Significantly greater yield was achieved with a multiplanar technique (P < 0.05). CONCLUSIONS Multiplanar sampling increases mass yield of tissue in fine-needle sampling. Coring appears to have little bearing on yield.

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Palla, Marco. "The effects of different Type Ia SN yields on Milky Way chemical evolution." Monthly Notices of the Royal Astronomical Society 503, no. 3 (February 5, 2021): 3216–31. http://dx.doi.org/10.1093/mnras/stab293.

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ABSTRACT We study the effect of different Type Ia SN nucleosynthesis prescriptions on the Milky Way chemical evolution. To this aim, we run detailed one-infall and two-infall chemical evolution models, adopting a large compilation of yield sets corresponding to different white dwarf progenitors (near-Chandrasekar and sub-Chandrasekar) taken from the literature. We adopt a fixed delay time distribution function for Type Ia SNe, in order to avoid degeneracies in the analysis of the different nucleosynthesis channels. We also combine yields for different Type Ia SN progenitors in order to test the contribution to chemical evolution of different Type Ia SN channels. The results of the models are compared with recent LTE and NLTE observational data. We find that ‘classical’ W7 and WDD2 models produce Fe masses and [α/Fe] abundance patterns similar to more recent and physical near-Chandrasekar and sub-Chandrasekar models. For Fe-peak elements, we find that the results strongly depend either on the white dwarf explosion mechanism (deflagration-to-detonation, pure deflagration, double detonation) or on the initial white dwarf conditions (central density, explosion pattern). The comparison of chemical evolution model results with observations suggests that a combination of near-Chandrasekar and sub-Chandrasekar yields is necessary to reproduce the data of V, Cr, Mn and Ni, with different fractions depending on the adopted massive stars stellar yields. This comparison also suggests that NLTE and singly ionized abundances should be definitely preferred when dealing with most of Fe-peak elements at low metallicity.

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Van Houten, Ron, Louis Malenfant, Brad Huitema, and Richard Blomberg. "Effects of High-Visibility Enforcement on Driver Compliance with Pedestrian Yield Right-of-Way Laws." Transportation Research Record: Journal of the Transportation Research Board 2393, no. 1 (January 2013): 41–49. http://dx.doi.org/10.3141/2393-05.

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Bouhnik, Y., A. Bitoun, B. Coffin, R. Moussaoui, A. Oudghiri, and J. C. Rambaud. "Two way push videoenteroscopy in investigation of small bowel disease." Gut 43, no. 2 (August 1, 1998): 280–84. http://dx.doi.org/10.1136/gut.43.2.280.

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Aims—To evaluate the diagnostic yield and safety of a new push type videoenteroscope (PVE) for diagnosis of small bowel disease.Methods—Three hundred and thirteen patients were referred for one or two way PVE from December 1993 to June 1996. Indications for PVE were: an unexplained iron deficiency anaemia with or without clinically evident gastrointestinal bleeding; or a complementary investigation for suspected small bowel disease, after a small bowel barium follow through (SBBFT) considered as normal or abnormal, but without a definite diagnosis.Results—A jejunoscopy and a retrograde ileoscopy were carried out in 306 and 234 patients, respectively. In patients with isolated anaemia (n=131) and those with clinically evident gastrointestinal bleeding associated anaemia (n=72), PVE provided a diagnosis in 26 (19.8%) and 22 (30.5%) cases, respectively. Lesions found were located in the jejunoileum in 30 (14.7%) patients and in the gastroduodenum or the colon in 18 (8.8%) patients—that is, within the reach of the conventional gastroscope/colonoscope. In patients with normal (n=54) or abnormal (n=56) SBBFT, PVE provided a diagnosis in 17 (31%) and 27 (48%) cases, respectively. In 25% of cases, the abnormal appearance of SBBFT was not confirmed. The site of the radiological abnormality was not reached in 27% of cases. Lesions were located at the jejunum and the ileum in 59 (64%) and 33 (36%) cases, respectively.Conclusions—PVE is useful in around 30% of cases of unexplained anaemia or after an SBBFT which failed to provide an accurate aetiological diagnosis. Use of retrograde videoenteroscopy increases diagnostic yield by one third.

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Journal articles on the topic 'Yield way'

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