Journal articles: 'QBML'

1

Mishra, Nalini, Suman Dhruw, Ishan Mishra, and Abha Daharwal. "Visual estimation of blood loss versus quantification of blood loss after vaginal birth using an innovative drape: a prospective study." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 10, no. 1 (December 26, 2020): 268. http://dx.doi.org/10.18203/2320-1770.ijrcog20205780.

Full text

Abstract:

Background: This study was done to compare the accuracy of visual estimation of blood loss (EBL) and quantitative assessment of blood loss (QBL, sum of volumetric and gravimetric assessment) against a reference standard i.e. calculated QBL (C-QBL) and also with each other after vaginal birth.Methods: Prospective observational cohort study conducted at Pt. JNM medical College Raipur, Chhattisgarh, India and involved 101 low risk women after vaginal birth. Women were allocated alternately to EBL or QBL group (volumetric component of measured blood loss was done with an innovative low cost drape prepared with a plastic apron at the point of care. Gravimetric component was measured by weight difference of the mops and pads before and after use). C-QBL was calculated for each case with a standard formula. Main outcome measure was comparing the correlation coefficient of EBL and QBL each with C-QBL.Results: The mean blood loss in 51 women of EBL group and 50 women of QBL group was 275.29 ml and 380 ml respectively. Pearson’s correlation coefficient (r) of EBL with C-QBL was 0.4984 (weak correlation) compared to that of QBL with C-QBL (r=0.9093, strong positive correlation). The error of underestimation by EBL compared to QBL was 28% (mean=104.71 ml p<0.0001). The relative risk (RR) of underestimating blood loss of >500 ml by EBL method was 5 (95% CI .605-41.3).Conclusions: Visual EBL should be replaced with QBL for measurement of postpartum blood loss. Using innovative under-buttock low cost drape greatly helps in routine QBL.

APA, Harvard, Vancouver, ISO, and other styles

2

Thurer, Robert L., Sahar Doctorvaladan, Brendan Carvalho, and Andrea T. Jelks. "Limitations of Gravimetric Quantitative Blood Loss during Cesarean Delivery." American Journal of Perinatology Reports 12, no. 01 (January 2022): e36-e40. http://dx.doi.org/10.1055/s-0041-1742267.

Full text

Abstract:

Objective This study examined the accuracy, sources of error, and limitations of gravimetric quantification of blood loss (QBL) during cesarean delivery. Study Design Blood loss determined by assays of the hemoglobin content on surgical sponges and in suction canisters was compared with QBL in 50 parturients. Results QBL was moderately correlated to the actual blood loss (r = 0.564; p < 0.001). Compared with the reference assay, QBL overestimated blood loss for 44 patients (88%). QBL deviated from the assayed blood loss by more than 250 mL in 34 patients (68%) and by more than 500 mL in 16 cases (32%). Assayed blood loss was more than 1,000 mL in four patients. For three of these patients, QBL was more than 1,000 mL (sensitivity = 75%). QBL was more than 1,000 mL in 12 patients. While three of these had an assayed blood loss of more than 1,000 mL, 9 of the 46 patients with blood losses of less than 1,000 mL by the assay (20%) were incorrectly identified as having postpartum hemorrhage by QBL (false positives). The specificity of quantitative QBL for detection of blood loss more than or equal to 1,000 mL was 80.4%. Conclusion QBL was only moderately correlated with the reference assay. While overestimation was more common than underestimation, both occurred. Moreover, QBL was particularly inaccurate when substantial bleeding occurred. Key Points

APA, Harvard, Vancouver, ISO, and other styles

3

Coviello, Elizabeth, Sara Iqbal, Tetsuya Kawakita, Rebecca Chornock, Megan Cheney, Sameer Desale, and Melissa Fries. "Effect of Implementing Quantitative Blood Loss Assessment at the Time of Delivery." American Journal of Perinatology 36, no. 13 (May 14, 2019): 1332–36. http://dx.doi.org/10.1055/s-0039-1688823.

Full text

Abstract:

Objective To evaluate the ability of estimated blood loss (EBL) and quantitative blood loss (qBL) to predict need for blood transfusion in women with postpartum hemorrhage (PPH). Study Design This is a retrospective chart review that identified women with PPH (>1,000 mL for vaginal or cesarean delivery) between September 2014 and August 2015, reported by EBL (n = 92), and October 2015 and September 2016, reported by qBL (n = 374). The primary metric was the area under the receiver-operating characteristic curve for blood transfusion. Results The rate of PPH by EBL and qBL was 2.8 and 10.8%, respectively (p < 0.01). The rate of transfusion for women meeting criteria for PPH by EBL and QBL were 2% (66/3,307) and 2.7% (93/3,453), respectively (p = 0.06). Postpartum transfusion was predicted by an EBL of 1,450 mL with AUC 0.826 and qBL 1,519 mL with AUC 0.764, for all modes of delivery. Postpartum vital signs and change in pre- and postdelivery hematocrit were poor predictors for transfusion. Conclusion The rates of PPH increased with the implementation of qBL. Overall, qBL did not perform better than EBL in predicting the need for blood transfusion.

APA, Harvard, Vancouver, ISO, and other styles

4

Dotters-Katz, Sarah K., Marcela C. Smid, Matthew R. Grace, Ravindu P. Gunatilake, Craig Sykes, Kimberly Blake, Kim A. Boggess, Avinash S. Patil, and Tracy Manuck. "The Effect of Blood Loss on Cefazolin Levels in Women Undergoing Cesarean Delivery." American Journal of Perinatology 36, no. 07 (October 18, 2018): 688–94. http://dx.doi.org/10.1055/s-0038-1673654.

Full text

Abstract:

Objective To quantify the effects of operative blood loss during cesarean on tissue and plasma cefazolin concentrations. Study Design This was a prospective observational study of singleton pregnancies undergoing scheduled cesarean between 34 and 40 weeks. Cefazolin administered prior to skin incision. Maternal plasma samples were obtained (Time 1[T1]: immediately, T2: 20 minutes, T3: 40 minutes, and T4: 60 minutes after cefazolin infusion). Subcutaneous adipose tissue sampled before and after fascia. Primary outcome was subcutaneous adipose cefazolin level after fascial closure. Formal quantitative blood loss (QBL) performed. Women with higher QBL, those at/above 75% of QBL in this population, were compared with those with lower QBL (QBL below 75%). Data analyzed using bivariable statistics. Results Ninety-two women were screened, 32 were eligible, and 20 enrolled. Median QBL was 630 mL (interquartile range [IQR]: 473–818) and 1,160 mL (IQR: 1,000–1,560) in the low and high QBL groups, respectively. Demographics and operative characteristics were similar. Median adipose cefazolin level after fascial closure did not differ between the groups (3.5 vs. 3.9 μg/g, p = 0.75). No differences in maternal plasma cefazolin concentrations between the groups at any time point or in pharmacokinetic parameters were seen. Conclusion Intraoperative maternal plasma concentrations and adipose levels of cefazolin are similar between women with high and low blood loss at the time of cesarean delivery.

APA, Harvard, Vancouver, ISO, and other styles

5

Hamm, Rebecca, Eileen Wang, April Romanos, Kathleen O'Rourke, and Sindhu Srinivas. "Implementation of Quantification of Blood Loss Does Not Improve Prediction of Hemoglobin Drop in Deliveries with Average Blood Loss." American Journal of Perinatology 35, no. 02 (August 24, 2017): 134–39. http://dx.doi.org/10.1055/s-0037-1606275.

Full text

Abstract:

Objective The National Partnership for Maternal Safety released a postpartum hemorrhage bundle in 2015 recommending quantification of blood loss (QBL) for all deliveries. We sought to determine whether QBL more accurately predicts hemoglobin (Hb) drop than visually estimated blood loss (EBL). Study Design This is a prospective observational study. Preintervention data (PRE) were collected on all deliveries between October 15, 2013 and December 15, 2013. Deliveries were included if EBL, admission Hb, and 12-hour postpartum Hb (12hrCBC) were available. QBL was implemented in July 2015. Postintervention data (POST) were collected between October 20, 2015 and December 20, 2015. A total of 500 mL EBL was predicted to result in 1 g/dL Hb drop at 12hrCBC. Student's t-test was used to compare the means. Results A total of 592 of 626 (95%) PRE and 583 of 613 (95%) POST deliveries were included. Overall, 278 (48%) POST deliveries had QBL recorded. In both PRE and POST, actual Hb drop differed from predicted by 0.6 g/dL in both groups of deliveries. When evaluating deliveries with EBL > 1,000 mL, QBL in POST was slightly better at predicting Hb drop versus EBL in PRE, although not statistically significant (0.2 vs. 0.5 g/dL, p = 0.17). Conclusion In all deliveries, QBL does not predict Hb drop more accurately than EBL. The decision to perform QBL needs to balance accuracy with a resource intense measurement process.

APA, Harvard, Vancouver, ISO, and other styles

6

Hamidi, M. Luthfi, and Andrew C. Worthington. "Islamic banking sustainability: theory and evidence using a novel quadruple bottom line framework." International Journal of Bank Marketing 39, no. 5 (March 4, 2021): 751–67. http://dx.doi.org/10.1108/ijbm-06-2020-0345.

Full text

Abstract:

PurposeThe study aims to extend the conventional triple bottom line (TBL) framework (prosperity, people and planet) to the quadruple bottom line (QBL) by newly adding a “prophet” dimension for Islamic banks seeking compliance with Islamic law in their pursuit of sustainability.Design/methodology/approachEmploy Chapra's corollaries of maqasid al-shari'ah (the goals of Islamic law) to develop constructs for a survey of 504 Islamic bank stakeholders from five Indonesian provinces to gather primary data to quantitatively verify the dimensions and items in the proposed QBL framework. Categorical principal component analysis (CATPCA) then identifies the sustainability of ten Islamic banks from ten countries as a trial application of the resulting QBL index.FindingsUsing the dimensions and items identified using CATPCA, the authors develop a QBL index to assess the sustainability of the ten Islamic banks. The findings suggest that half of the banks are sufficiently sustainable, with three being proactive (doing more than is required) and two being accommodative (doing all that is required). The remaining five banks are unsustainable, with two banks being defensive (doing the least that is required) and three being reactive (doing less than is required). Most of the banks perform relatively poorly according to the “planet” (38%) and “people” (41%) dimensions and perform better on the “prosperity” (53%) and “prophet” (63%) dimensions. Nonetheless, there is ample room for improvement across all dimensions of sustainability.Research limitations/implicationsThe generalizability of the findings is limited by the small-scale single-country survey used in the CATPCA part of the analysis. Only ten Islamic banks were included in the QBL scoring and ranking exercisesPractical implicationsIslamic banks can improve their sustainability by increasing green financing and reaching out to rural areas and disadvantaged populations. In countries with Islamic banking systems, regulators can support this through training, guidance and incentives.Originality/valuePioneering exploration of TBL from maqasid al-shari'ah perspective. First, we develop a QBL index to assess the sustainability of Islamic banks in line with actual stakeholder expectations.

APA, Harvard, Vancouver, ISO, and other styles

7

Rewoldt, Abby, Jeana Forman, Noelle C. Bowdler, Abbey Merryman, and Stephanie Radke. "Quantitative Blood Loss (QBL) at every delivery." Proceedings in Obstetrics and Gynecology 9, no. 2 (December 1, 2019): 1–11. http://dx.doi.org/10.17077/2154-4751.1456.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Wallenborn, Benjamin, Matthias Then, Minh Duc Hoang, Duc Binh Vu, Jana Becker, Michael Fuchs, Dominic Heutelbeck, and Matthias Hemmje. "Towards a Competence-Based Course Authoring Tool Supporting Learning Management Systems." International Journal of Emerging Technologies in Learning (iJET) 12, no. 10 (November 2, 2017): 127. http://dx.doi.org/10.3991/ijet.v12i10.7300.

Full text

Abstract:

To establish a more comparable, compatible, and coherent system of higher education in Europe, the so-called Bologna Process (BP) has been adopted. As a measure to improve comparability, the BP requires that every study path, module, or course has to define a Learning Goal (LG) which is specified by the conveyed competences. Until now, the expectations towards the BP regarding comparability have not been fulfilled because competences are usually described in form of free text and not in standardized terms. The fact that since adoption of the BP more than 10.000 study programs have been created in Germany outlines a trend which demonstrates the need of improved solutions. Regarding comparability, so-called Competence Frameworks (CFs) with standardized, machine-readable competences are promising tools; therefore, they should be integrated into progressive software infrastructures concerned with creation, management, and execution of study paths, modules and courses. For this purpose, the so-called Qualifications Based Learning Model (QBLM) has been developed. In this paper, we introduce a general system architecture which is designed for realizing Competence-based Learning IT-infrastructures. Furthermore, the conceptual design and prototypical implementation of a Course Authoring Tool (CAT) is described which is based on the QBLM and the information-, content-, knowledge-, and learning management platform Knowledge Management Ecosystem Portal (KM-EP). The integration of the QBLM into Learning Management System (LMS) Moodle which is an underlying subsystem of the KM-EP platform is work in progress.

APA, Harvard, Vancouver, ISO, and other styles

9

Li, Dongyue, Daniele Marchisio, Christian Hasse, and Dirk Lucas. "twoWayGPBEFoam: An open-source Eulerian QBMM solver for monokinetic bubbly flows." Computer Physics Communications 250 (May 2020): 107036. http://dx.doi.org/10.1016/j.cpc.2019.107036.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Zhang, Shuhui, Yuke Zhou, Yong Yu, Feng Li, Ruixin Zhang, and Wenlong Li. "Using the Geodetector Method to Characterize the Spatiotemporal Dynamics of Vegetation and Its Interaction with Environmental Factors in the Qinba Mountains, China." Remote Sensing 14, no. 22 (November 16, 2022): 5794. http://dx.doi.org/10.3390/rs14225794.

Full text

Abstract:

Understanding the driving mechanisms of vegetation development is critical for maintaining terrestrial ecosystem function in mountain areas, especially under the background of climate change. The Qinba Mountains (QBM), a critical north–south transition zone in China, is an environmentally fragile area that is vulnerable to climate change. It is essential to characterize how its ecological environment has changed. Currently, such a characterization remains unclear in the spatiotemporal patterns of the nonlinear effects and interactions between environmental factors and vegetation changes in the QBM. Here, we utilized the Normalized Difference Vegetation Index (NDVI), obtained from Google Earth Engine (GEE) platform, as an indicator of terrestrial ecosystem conditions. Then, we measured the spatiotemporal heterogeneity for vegetation variation in the QBM from 2003 to 2018. Specifically, the Geodetector method, a new geographically statistical method without linear assumptions, was employed to detect the interaction between vegetation and environmental driving factors. The results indicated that there is a trend of a general increase in vegetation growth amplitude (the average NDVI increased from 0.810 to 0.858). The areas with an NDVI greater than 0.8 are mainly distributed in the Qinling Mountains and the Daba Mountains, which account for more than 76.39% of the QBM area. For the entire region, the global Moran’s index of the NDVI is greater than 0.95, indicating that vegetation is highly concentrated in the spatial domain. The Geodetector identified that landform type was the primary factor in controlling vegetation changes, contributing 24.19% to the total variation, while the explanatory powers of the aridity index and the wetness index for vegetation changes were 22.49% and 21.47%, respectively. Furthermore, the interaction effects between any two factors outperformed the influence of a single environmental variable. The interaction between air temperature and the aridity index was the most significant element, contributing to 47.10% of the vegetation variation. These findings can not only improve our understanding in the interactive effects of environmental forces on vegetation change, but also be a valuable reference for ecosystem management in the QBM area, such as ecological conservation planning and the assessment of ecosystem functions.

APA, Harvard, Vancouver, ISO, and other styles

11

Tiller, Stephen J., Adam P. Rhindress, Ibrahim O. Oguntola, M. Ali Ülkü, Kent A. Williams, and Binod Sundararajan. "Exploring the Impact of Climate Change on Arctic Shipping through the Lenses of Quadruple Bottom Line and Sustainable Development Goals." Sustainability 14, no. 4 (February 15, 2022): 2193. http://dx.doi.org/10.3390/su14042193.

Full text

Abstract:

Climate change is everywhere, and the Arctic is no exception. The melting sea ice has caused renewed interest in expanding maritime shipping for potentially more accessible ocean routes. Canada emerges as a natural land bridge for trade between Asia, Europe, and the Americas. Plausibly, it is not a choice but an imperative to properly integrate the stakeholders (the environment, countries, remote communities, industrial partners) in opening the Arctic Circle to the global economy while considering the challenges. Keeping sustainability front and center and drawing on the extant literature and government policies, this interdisciplinary study offers a Canadian perspective on Arctic transportation routes over tribal lands and their quadruple bottom line (QBL) impacts on the environment, economy, society, and Indigenous cultures. Unlike the arguable premise that new transport corridors will increase trade traffic and enhance the economy in Northern Canada, the QBL approach enables a more holistic and realistic strategy for the Arctic region’s sustainable development regarding regional economies, rural logistics, supply chain efficiency, and social licensing. Drawing on an integrative literature review as methodology, we highlight the QBL framework and the United Nations Sustainable Development Goals as crucial policy tools. Such a holistic perspective helps stakeholders and decision makers frame better policies in identifying, assessing, adapting, and mitigating risks for transportation infrastructure exposed to climate change. We recap the impacts of Arctic Shipping (ArSh) on QBL pillars in an interaction matrix and emphasize that while ArSh may be complementary to economic development, it poses threats to the viability of the Indigenous cultures.

APA, Harvard, Vancouver, ISO, and other styles

12

Pereira, Jessica Rodrigies, Camila Vieira Ligo Teixeira, Danilla Icassatti Corazza, Thays Martins Vital, Salma Stéphany Soleman Hernandez, and Florindo Stella. "Relação entre nível de atividade física e realização de atividades instrumentais em frequentadores de centro dia geriátrico." Conexões 10, no. 3 (December 20, 2012): 20–31. http://dx.doi.org/10.20396/conex.v10i3.8637644.

Full text

Abstract:

Objetivo: Analisar a associação entre nível de atividade física e a realização de atividades instrumentais de idosos frequentadores de Centro-Dia Geriátrico. Métodos: Estudo de delineamento transversal, com amostra constituída por 31 idosos frequentadores de Centro-Dia Geriátrico. Foram utilizados o Questionário de Baeck Modificado para Idosos (QBMI) e o Questionário de Atividades Instrumentais de Pfeffer (Pfeffer), para avaliar o nível de atividade física e realização de atividades instrumentais, respectivamente. E para caracterização da amostra, foi utilizado o Mini Exame do Estado Mental. Para análise dos dados foi utilizada a estatística descritiva e Correlação de Spearman. Resultados: A análise mostrou correlação moderada e negativa entre o QBMI e o Pfeffer (r=-0,04), podendo essa relação ser extrapolada para quanto maior o nível de atividade física, maior a independência na realização de atividades instrumentais. Conclusões: O nível de atividade física tem relação com a realização de atividades instrumentais. Assim, o incentivo à prática de atividade física é de extrema importância para a população idosa, para que a mesma se mantenha independente.

APA, Harvard, Vancouver, ISO, and other styles

13

Bonants, P., E. Groenewald, J. Y. Rasplus, M. Maes, P. de Vos, J. Frey, N. Boonham, et al. "QBOL: a new EU project focusing on DNA barcoding of Quarantine organisms." EPPO Bulletin 40, no. 1 (April 2010): 30–33. http://dx.doi.org/10.1111/j.1365-2338.2009.02350.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Jambek, Asral Bahari, and Arief Affendi Juri. "Low-energy motion estimation architecture using quadrant-based multi-octagon (QBMO) algorithm." Journal of Real-Time Image Processing 12, no. 3 (May 1, 2014): 623–32. http://dx.doi.org/10.1007/s11554-014-0426-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Zhao, Tong, Liming Wu, Fangfang Fan, Yaning Yang, and Xiaofeng Xue. "Supplementation with Queen Bee Larva Powder Extended the Longevity of Caenorhabditis elegans." Nutrients 14, no. 19 (September 24, 2022): 3976. http://dx.doi.org/10.3390/nu14193976.

Full text

Abstract:

Queen bee larva (QBL) is one kind of important edible insect that is harvested during royal jelly production process. QBL has many physiological functions; however, limited information is available regarding its antiaging effects. In this study, the antiaging function of freeze-dried QBL powder (QBLP) was investigated by combining the Caenorhabditis elegans (C. elegans) model and transcriptomics. The administration of QBLP to C. elegans was shown to improve lifespan parameters. Additionally, QBLP improved the mobility of nematodes. Transcriptome analysis showed the differentially expressed genes (DEGs) were significantly enriched in Gene Ontology (GO) terms that were almost all related to the biological functions of cell metabolism and stress, which are associated with lifespan. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis suggested that the lifespan of C. elegans was related to the longevity regulating pathway-worm. The expression levels of the key genes sod-3, gst-6, hsp-12.6, lips-7, ins-8, and lips-17 were upregulated. sod-3, hsp-12.6, lips-7, and lips-17 are downstream targets of DAF-16, which is an important transcription factor related to lifespan extension. CF1038 (daf-16(mu86)) supplemented with QBLP did not show a life-prolonging. This indicates that the antiaging function of QBLP is closely related to daf-16. Thus, QBLP is a component that could potentially be used as a functional material to ameliorate aging and aging-related symptoms.

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Michelle J., Melissa Schapero, Ronald Iverson, and Christina D. Yarrington. "Obstetric Hemorrhage Risk Associated with Novel COVID-19 Diagnosis from a Single-Institution Cohort in the United States." American Journal of Perinatology 37, no. 14 (September 29, 2020): 1411–16. http://dx.doi.org/10.1055/s-0040-1718403.

Full text

Abstract:

Objective The study aimed to compare the quantitative blood loss (QBL) and hemorrhage-related outcomes of pregnant women with and without a coronavirus disease 2019 (COVID-19) diagnosis. Study Design This retrospective cohort study of all live deliveries at Boston Medical Center between April 1, 2020 and July 22, 2020 compares the outcomes of pregnant women with a laboratory-confirmed COVID-19 positive diagnosis and pregnant women without COVID-19. The primary outcomes are QBL and obstetric hemorrhage. The secondary outcomes analyzed were a maternal composite outcome that consisted of obstetric hemorrhage, telemetry-level (intermediate care unit) or intensive care unit, transfusion, length of stay greater than 5 days, or intraamniotic infection, and individual components of the maternal composite outcome. Groups were compared using Student's t-test, Chi-squared tests, or Fisher's exact. Logistic regression was used to adjust for confounding variables. Results Of 813 women who delivered a live infant between April 1 and July 22, 2020, 53 women were diagnosed with COVID-19 on admission to the hospital. Women with a COVID-19 diagnosis at their time of delivery were significantly more likely to identify as a race other than white (p = 0.01), to deliver preterm (p = 0.05), to be diagnosed with preeclampsia with severe features (p < 0.01), and to require general anesthesia (p < 0.01). Women diagnosed with COVID-19 did not have a significantly higher QBL (p = 0.64). COVID-19 positive pregnant patients had no increased adjusted odds of obstetric hemorrhage (adjusted odds ratio [aOR]: 0.41, 95% confidence interval [CI]: 0.17–1.04) and no increased adjusted odds of the maternal morbidity composite (aOR: 0.98, 95% CI: 0.50–1.93) when compared with those without a diagnosis of COVID-19. Conclusion Pregnant women with COVID-19 diagnosis do not have increased risk for obstetric hemorrhage, increased QBL or risk of maternal morbidity compared with pregnant women without a COVID-19 diagnosis. Further research is needed to describe the impact of a COVID-19 diagnosis on maternal hematologic physiology and pregnancy outcomes. Key Points

APA, Harvard, Vancouver, ISO, and other styles

17

Wenjun Xie, Yang Cai, Lingkui Meng, Jianguo Cheng, and Siyu Cai. "QBM-Tree: A Peer-to-Peer Structure for Spatial Data Query." International Journal of Advancements in Computing Technology 4, no. 22 (December 31, 2012): 585–91. http://dx.doi.org/10.4156/ijact.vol4.issue22.66.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Crihfield, E. G., E. Demirel, A. M. Grant, and M. L. Nimaroff. "Use of Triton Quantitative Blood Loss (QBL) System in Gynecologic Surgery." Journal of Minimally Invasive Gynecology 28, no. 11 (November 2021): S156. http://dx.doi.org/10.1016/j.jmig.2021.09.318.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Zhu, Jianjun, Haiwen Zhu, Guangqiang Cao, Jiecheng Zhang, Jianlin Peng, Hattan Banjar, and Hong-Quan Zhang. "A New Mechanistic Model To Predict Boosting Pressure of Electrical Submersible Pumps Under High-Viscosity Fluid Flow with Validations by Experimental Data." SPE Journal 25, no. 02 (December 12, 2019): 744–58. http://dx.doi.org/10.2118/194384-pa.

Full text

Abstract:

Summary As the second most widely used artificial-lift method in petroleum production (and first in accumulative production), electrical submersible pumps (ESPs) increase flow rates by converting kinetic energy to hydraulic pressure. ESPs are routinely characterized with water flow, and water performance curves are provided by the manufacturers (catalog curves) for designing ESP-based artificial-lift systems. However, the properties of hydrocarbon fluids are very different from those of water, especially the dynamic viscosities, which can significantly alter the ESP performance. Most of the existing methods to estimate ESP boosting pressure under high-viscosity fluid flow involve a strong empirical nature, and are derived by correlating experimental/field data with correction factors (e.g., Hydraulic Institute Standards 1955). A universally valid mechanistic model to calculate the ESP boosting pressure under viscous fluid flow is not yet available. In this paper, a new mechanistic model accounting for the viscosity effect of working fluids on ESP hydraulic performance is proposed, and it is validated with a large database collected from different types of ESPs. The new model starts from the Euler equations for characterizing centrifugal pumps, and introduces a conceptual best-match flow rate QBM, at which the outlet flow direction of the impeller matches the designed flow direction. The mismatch of velocity triangles, resulting from the varying liquid-flow rates, is used to derive the recirculation losses. Other head losses caused by flow-direction change, friction, leakage flow, and other factors. are incorporated into the new model as well. QBM is obtained by matching the predicted H-Q performance curve of an ESP with the catalog curves. Once QBM is determined, the ESP hydraulic head under viscous-fluid-flow conditions can be calculated. The specific speed (NS) of the studied ESPs in this paper ranges from 1,600 to 3,448, including one radial-type ESP and two mixed-type designs. The model-predicted ESP boosting pressure with water flow is found to match the catalog curves well if QBM is properly tuned. With high-viscosity fluid presence, the model predictions of ESP boosting pressure also agree well with the corresponding experimental data. For most calculation results within medium to high flow rates, the model prediction error is less than 15%. Unlike the empirical correlations that take experimental data points as inputs, the mechanistic model in this study does not require entering any experimental data, but can predict ESP boosting pressure under viscous fluid flow with a reasonable accuracy.

APA, Harvard, Vancouver, ISO, and other styles

20

Szinovacz, Maximiliane. "Preferred Retirement Timing and Retirement Satisfaction in Women." International Journal of Aging and Human Development 24, no. 4 (June 1987): 301–17. http://dx.doi.org/10.2190/al6j-e7xu-qb7l-r8ge.

Full text

Abstract:

Previous research on retirement relied heavily on samples of male retirees; it also emphasized objective predictors of retirement adjustment, such as occupational position, income, or age. Some recent studies, however, indicate that retirement signifies a major life event for women. Furthermore, as the literature on role transitions suggests, it is a combination of objective and subjective retirement circumstances that impinge on adaptation to this life event. This study explores retirement conditions affecting women's preferred retirement timing and retirement satisfaction. It is based on the assumption that sex differences in the retirement experience render retirement adjustment processes different for men and women, and it aims at identifying retirement conditions that are of primary importance to women.

APA, Harvard, Vancouver, ISO, and other styles

21

Norland, Stephen, Douglas Eichar, and Albert Dichiara. "Curricula, Competition and Conventional Bonds: The Educational Role in Drug Control." Journal of Drug Education 26, no. 3 (September 1996): 231–42. http://dx.doi.org/10.2190/1hfj-dn26-qbmb-1e6x.

Full text

Abstract:

Evaluations of school curricular drug control efforts show they are only modestly successful because they are based on an inaccurate theory of drug taking. Social control theory is suggested as a better model of drug taking and drug resistance. Building strong bonds to school acts to decrease the likelihood of interaction with delinquent peers and thereby decrease delinquency and drug use. Yet schools are sites of stratification and competition, and strong bonds may be related to one's place in the school hierarchy. If schools are unable to produce sufficient positions in the hierarchy, those with low levels of academic success or commitment may turn to the drug subculture to find status and rewards. A number of future research questions are suggested.

APA, Harvard, Vancouver, ISO, and other styles

22

Alberque, Christel, and Ariel Eytan. "Chronic Pain Presenting as Major Depression in a Cross-Cultural Setting." International Journal of Psychiatry in Medicine 31, no. 1 (March 2001): 73–76. http://dx.doi.org/10.2190/3t68-99r0-qbvl-fnn0.

Full text

Abstract:

We report on a female African immigrant who developed chronic pain as a consequence of osteomalacia. Due to cultural particularities in pain expression, her symptoms were first attributed to a major depressive episode. Cultural factors influencing pain perception and expression are reviewed. The importance of working with competent interpreters in cross-cultural settings is emphasized.

APA, Harvard, Vancouver, ISO, and other styles

23

Petter, F., and M. McMullen. "Introduction to the QBOL-EPPO Conference on DNA barcoding and diagnostic methods for plant pests." EPPO Bulletin 43, no. 2 (July 16, 2013): 209–10. http://dx.doi.org/10.1111/epp.12029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Sespere Faria Oliveira, Maryane S., John K. Htoo, J. Caroline González-Vega, and Hans H. Stein. "166 Optimal tryptophan:lysine Ratio for 25–40 Kg Growing Pigs Fed Diets Containing 35 % Distillers Dried Grains with Solubles." Journal of Animal Science 99, Supplement_1 (May 1, 2021): 57–58. http://dx.doi.org/10.1093/jas/skab054.097.

Full text

Abstract:

Abstract Distillers dried grains with solubles (DDGS) has a high concentration of Leu, and the Trp requirement for growing pigs may be increased if diets contain excess Leu. Therefore, the objective of this experiment was to determine the optimum standardized ileal digestible (SID) Trp:Lys ratio in growing pigs fed diets with excess Leu from DDGS. A diet based on corn, soybean-meal, and 35% DDGS was formulated to be deficient in Trp and Lys, according to NRC requirements (0.13% SID Trp; 0.88% SID Lys; 15% SID Trp:Lys ratio). Four diets were prepared by adding L-Trp to the basal diet, which resulted in analyzed SID Trp:Lys ratios of 18, 20, 23, and 24% in these diets. One-hundred and twenty growing pigs (26.3 ± 2.0 kg) were allotted to one of the 5 dietary treatments with 3 pigs per pen and 8 pen replicates in a completely randomized design. Diets were fed for 21d and blood samples were collected on d-21. Data were analyzed by linear and quadratic contrasts in SAS. The optimal SID Trp:Lys ratio was estimated using linear broken-line (LBL) and quadratic broken-line (QBL) regressions for ADG and G:F, using NLIN procedure in SAS. Results indicated that average daily feed intake, ADG, G:F, and final body weight increased (linear and quadratic, P < 0.01) and plasma-urea-nitrogen decreased (linear and quadratic, P < 0.05) as dietary SID Trp:Lys increased (Table 1). The SID Trp:Lys ratio to optimize ADG was 20.9 and 23.4% by LBL and QBL, respectively. The G:F was optimized at 18.7 and 20.2% by LBL and QBL, respectively. The average SID Trp:Lys ratio for the 4 measurements was 20.8% which is greater than the current NRC requirement (SID 17.3%). In conclusion, diets formulated with 35% DDGS may need more dietary Trp than current NRC values.

APA, Harvard, Vancouver, ISO, and other styles

25

Poddubnyy, V. N., V. V. Gribanov, K. Yu Lozhkin, D. B. Sobolev, A. N. Petrenko, and Yu I. Poltavets. "Estimation of the Spectral Efficiency and Noise Immunity of the Coherent Reception of an Unfading QBL–MSK Signal." Rocket-Space Device Engineering and Information Systems 2 (June 2017): 29–37. http://dx.doi.org/10.17238/issn2409-0239.2017.2.29.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Wang, Lei, Lan Zhang, Yuhan Chen, Junping Chen, Meng Zhang, Miao Yu, Hongxia Jiang, Zhigang Qiao, and Xuejun Li. "Mapping Growth-Related Quantitative Trait Locus (QTL) in Commercial Yellow River Carp (Cyprinus carpio haematopterus) during Overwintering." Fishes 7, no. 4 (July 12, 2022): 166. http://dx.doi.org/10.3390/fishes7040166.

Full text

Abstract:

The common carp (Cyprinus carpio) is farmed globally; as a subspecies, the Yellow River carp (C. c. haematopterus) is widely farmed in northern China. Since the Yellow River carp grows slowly in winter, it would benefit breeders to implement a breeding program targeting growth in winter. In May 2017, we established a Yellow River carp family and measured the body length, height, thickness, and weight of individuals before (October 2017) and after winter (February 2018). Based on the genetic linkage map established in our laboratory, the quantitative trait locus (QTL) mapping of these four traits led to the detection of 29 growth-related QTLs, of which 9, 7, 3, and 10 QTLs were associated with body length, height, thickness, and body weight, respectively. One consensus QTL contained seven QTLs associated with four traits. Through the two major-effect QTLs (qBL-p-1 and qBL-p-2), we screened three candidate genes (fnd3b, ghsr, and pld1), which were associated with biological activities, such as fat formation, growth, and membrane transport. These results are helpful in exploring the growth regulation mechanism and providing a reference for genetic breeding with regard to the overwintering growth of Yellow River carp.

APA, Harvard, Vancouver, ISO, and other styles

27

Zhu, Jianjun, Hanjun Zhao, Guangqiang Cao, Hattan Banjar, Haiwen Zhu, Jianlin Peng, and Hong-Quan Zhang. "A New Mechanistic Model for Emulsion Rheology and Boosting Pressure Prediction in Electrical Submersible Pumps (ESPs) under Oil-Water Two-Phase Flow." SPE Journal 26, no. 02 (January 22, 2021): 667–84. http://dx.doi.org/10.2118/196155-pa.

Full text

Abstract:

Summary As the second most widely used artificial lift method in the petroleum industry, electrical submersible pumps (ESPs) maintain or increase flow rates by converting the kinetic energy to hydraulic pressure. As oilfields age, water is invariably produced with crude oil. The increase of water cut generates oil-water emulsions due to the high-shearing effects inside a rotating ESP. Emulsions can be stabilized by natural surfactants or fine solids existing in the reservoir fluids. The formation of emulsions during oil production creates a high viscous mixture, resulting in costly problems and flow assurance issues, such as increasing pressure drop and reducing production rates. This paper, for the first time, proposes a new rheology model to predict the oil-water emulsion effective viscosities and establishes a link of fluid rheology and its effect with the stage pressure increment of ESPs. Based on Brinkman's (1952) correlation, a new rheology model, accounting for ESP rotational speed, stage number, fluid properties, and so on, is developed, which can also predict the phase inversion in oil-water emulsions. For the new mechanistic model to calculate ESP boosting pressure, a conceptual best-match flow rate (QBM) is introduced. QBM corresponds to the flow rate whose direction at the ESP impeller outlet matches the designed flow direction. Induced by the liquid flow rates changing, various pressure losses can be derived from QBM, including recirculation losses, and losses due to friction, leakage, sudden change of flow directions, and so on. Incorporating the new rheology model into the mechanistic model, the ESP boosting pressure under oil-water emulsion flow can be calculated. To validate the proposed model, the experimental data from two different types of ESPs were compared with the model predictions in terms of ESP boosting pressure. Under both high-viscosity single-phase fluid flow and oil-water emulsion flow, the model predicted ESP pressure increment matches the experimental measurements well. From medium to high flow rates with varying oil viscosities and water cuts, the prediction error is less than 15%.

APA, Harvard, Vancouver, ISO, and other styles

28

Burton, Nicholas, and Jonathan Bainbridge. "Spiritual Discernment, the Incorporated Organization, and Corporate Law: The Case of Quaker Business Method." Religions 10, no. 1 (January 8, 2019): 35. http://dx.doi.org/10.3390/rel10010035.

Full text

Abstract:

The purpose of this paper is to examine the extent to which practices from the spiritual traditions—in our case, spiritual discernment—may offer opportunities for management innovation in non-religious organizations in designing collaborative and participative decision-making processes. We examine the case of a spiritual discernment practice associated with the Religious Society of Friends (Quakers) in the UK—known as the Quaker Business Method (QBM)—to help illuminate the opportunities of spiritual discernment in private limited companies. Given that the majority of non-religious, trading organizations are structured as private limited companies, our paper addresses the extent to which QBM can be utilized by such entities. Thus, we bring religion and corporate law into conversation to address this under-explored terrain. We find that embedding many elements of Quaker spiritual discernment in private limited companies pose non-trivial challenges. However, many of these challenges can be overcome so long as those involved in managing and owning organizations actively engage with corporate law, and specifically consider the benefits of adopting bespoke articles of association or entering into a separate shareholder agreement to reflect the practice of spiritual discernment. We necessarily adopt a practice-orientated perspective, and conclude by proposing new pathways for future research.

APA, Harvard, Vancouver, ISO, and other styles

29

Blumenthal, Elizabeth, Rashmi Rao, Aisling Murphy, Jeffrey Gornbein, Richard Hong, John Moriarty, Daniel Kahn, and Carla Janzen. "Pilot Study of Intra-Aortic Balloon Occlusion to Limit Morbidity in Patients with Adherent Placentation Undergoing Cesarean Hysterectomy." American Journal of Perinatology Reports 08, no. 02 (April 2018): e57-e63. http://dx.doi.org/10.1055/s-0038-1641736.

Full text

Abstract:

Objective We study whether using an intra-aortic balloon (IAB) during cesarean hysterectomy decreases delivery morbidity in patients with suspected morbidly adherent placentation. Study Design This is a retrospective cohort study of deliveries complicated by suspected abnormal placentation between 2009 and 2016 comparing maternal and neonatal outcomes with an IAB placed prior to cesarean hysterectomy versus no IAB. The primary outcome included quantified blood loss (QBL). Results Thirty-five cases were reviewed, 16 with IAB and 19 without IAB. No difference was seen in median QBL between the two groups (1,351 vs. 1,397 mL; p = 0.90). There were no significant differences in overall surgical complications (19% IAB, 21% no IAB; p = 0.86), bladder complications (12 vs. 21%; p = 0.66), intensive care unit admissions (12 vs. 26%; p = 0.41), surgical duration (2.9 vs. 2.8 hour; p = 0.83), or blood transfusions (median 2 vs. 2; p = 0.27) between the two groups. There was one groin hematoma at the balloon site that was managed conservatively. There were no complications involving thrombosis or limb ischemia in the IAB group. Conclusion While we did not detect statistically significant differences, larger studies may be warranted given the potential for extreme morbidity in these cases. This study highlights the potential use of an IAB in the management of these cases.

APA, Harvard, Vancouver, ISO, and other styles

30

Hettiarachchi, Nuwan Lakmal, Tamil Selvan Subramaniam, Muhammad Nurtanto, Sarala Thulasi Palpanadan, Zachariah John A. Belmonte, Arul Lawrence Antony Selvaraj, and Nur Kholifah. "Educating Financial Accounting: A Need Analysis for Technology-Driven Problem-Solving Skills." International Journal of Information and Education Technology 13, no. 2 (2023): 384–91. http://dx.doi.org/10.18178/ijiet.2023.13.2.1817.

Full text

Abstract:

The teaching and learning process of financial accounting (FA) has become a challenge in an ever-changing global perspective, and an important discussion is replacing classroom teaching with career-based requirements. Problem-solving skills (PSS) help determine the source of problems and find appropriate solutions in teaching FA topics. This study aimed to identify the need for problem-solving skills for FA students for job readiness and identify the appropriate technology-savvy platform to improve problem-solving skills. Undergraduate students at the College of Banking and Financial Studies (CBFS) in Muscat, Sultanate of Oman, were selected as the research domain for data collection and analysis. This study reports a part of a preliminary study conducted using a survey technique on FA students. The main finding was that they had placed problem-solving skills as one of the important job skills in the modern financial accounting era. Furthermore, the needs analysis reflected the importance of the quiz-based learning (QBL) method embedded in Microsoft Forms (MFS) as a technology-based platform for teaching and learning about FA. Therefore, this study collected findings from the needs analysis phase with the help of QBL-MFS to improve the problem-solving skills of FA students to prepare them with life skills to be applied in the world place.

APA, Harvard, Vancouver, ISO, and other styles

31

Bhattacharyya, Siddhartha, Siddhartha Bhattacharjee, and Naba Kumar Mondal. "A quantum backpropagation multilayer perceptron (QBMLP) for predicting iron adsorption capacity of calcareous soil from aqueous solution." Applied Soft Computing 27 (February 2015): 299–312. http://dx.doi.org/10.1016/j.asoc.2014.11.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Hazra, Anupam, Hemantkumar S. Chaudhari, Subodh K. Saha, Samir Pokhrel, Ushnanshu Dutta, and B. N. Goswami. "Role of cloud microphysics in improved simulation of the Asian monsoon quasi-biweekly mode (QBM)." Climate Dynamics 54, no. 1-2 (October 21, 2019): 599–614. http://dx.doi.org/10.1007/s00382-019-05015-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Oh, Jinnyoung. "A Study on Developing QBL-MODEL in the Debate Classroom for Liberal Education at University." Korean Association of General Education 16, no. 6 (December 31, 2022): 131–47. http://dx.doi.org/10.46392/kjge.2022.16.6.131.

Full text

Abstract:

The purpose of this study is to develop a teaching-learning model using argumentative questions as an effective method for a discussion class. The researcher guided the students to learn the concept of argument as an essential part while learning the ＜Reading Classics of Great Literature＞ course at Pusan National University. This learning process can improve the student’s ability to analyze classical works logically, and to identify correct arguments and errors in discussion activities. As a result learners can realize that the argumentation of a specific topic can be opened in another way through analysis of classical works and discussion activities based on the concept of argumentation. In other words, the learner discover new question to argumentation. This researcher thinks that the learner’s ability to ask such questions eventually approaches the pedagogical significance of promoting true creativity.

APA, Harvard, Vancouver, ISO, and other styles

34

Cho, Pyae, and Thi Nyunt. "Data Clustering based on Modified Differential Evolution and Quasi-Opposition-based Learning." International Journal of Intelligent Engineering and Systems 13, no. 6 (December 31, 2020): 168–78. http://dx.doi.org/10.22266/ijies2020.1231.15.

Full text

Abstract:

Differential Evolution (DE) has become an advanced, robust, and proficient alternative technique for clustering on account of their population-based stochastic and heuristic search manners. Balancing better the exploitation and exploration power of the DE algorithm is important because this ability influences the performance of the algorithm. Besides, keeping superior solutions for the initial population raises the probability of finding better solutions and the rate of convergence. In this paper, an enhanced DE algorithm is introduced for clustering to offer better cluster solutions with faster convergence. The proposed algorithm performs a modified mutation strategy to improve the DE’s search behavior and exploits Quasi-Opposition-based Learning (QBL) to choose fitter initial solutions. This mutation strategy that uses the best solution as a target solution and applies three differentials contributes to avoiding local optima trap and slow convergence. The QBL based initialization method also contributes to increasing the quality of the clustering results and convergence rate. The experimental analysis was conducted on seven real datasets from the UCI repository to evaluate the performance of the proposed clustering algorithm. The obtained results showed that the proposed algorithm achieves more compact clusters and stable solutions than the competing conventional DE variants. Moreover, the performance of the proposed algorithm was compared with the existing state of the art clustering techniques based on DE. The corresponding results also pointed out that the proposed algorithm is comparable to other DE based clustering approaches in terms of the value of the objective functions. Therefore, the proposed algorithm can be regarded as an efficient clustering tool.

APA, Harvard, Vancouver, ISO, and other styles

35

Anderson, R. Y. "Enhanced climate variability in the tropics: a 200 000 yr annual record of monsoon variability from Pangea's equator." Climate of the Past 7, no. 3 (July 19, 2011): 757–70. http://dx.doi.org/10.5194/cp-7-757-2011.

Full text

Abstract:

Abstract. A continuous series of 209 000 evaporite varves from the equator of arid western Pangea (age = −255 ma), as a proxy for surface temperature, has a complete suite of Milankovitch cycles and harmonics as expected for a rectified reaction to precession-modulated insolation at the equator. Included are modes of precession (23.4 kyr, 18.2 kyr), semi-precession (11.7 kyr, 9.4 kyr), and harmonics at ~7 kyr and 5.4 kyr. An oscillation of ~100 kyr, with 35 % of total variance, originates as an amplitude modulation of precession cycles. An exceptionally strong 2.3 kyr quasi-bi-millennial oscillation (QBMO) appears to have had its own source of forcing, possibly solar, with its amplitude enhanced at Milankovitch frequencies. Seasonal information in varves traces the rectifying process to asymmetrical distribution of Pangea relative to the equator, and its effect on monsoonal circulation and heat flow near the equator during summer solstices in the hemispheres.

APA, Harvard, Vancouver, ISO, and other styles

36

Steinhausen, M., T. Zirwes, F. Ferraro, S. Popp, F. Zhang, H. Bockhorn, and C. Hasse. "Turbulent flame-wall interaction of premixed flames using Quadrature-based Moment Methods (QbMM) and tabulated chemistry: An a priori analysis." International Journal of Heat and Fluid Flow 93 (February 2022): 108913. http://dx.doi.org/10.1016/j.ijheatfluidflow.2021.108913.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Membriani, Evangelina, Sergio Sarquis, Ariel Sosa, Carlos Vay, Angela Famiglietti, Abelardo Capdevila, Celica Irrazabal, Patricia Vujacich, and Carlos Luna. "Usefulness of Quantitative Endotracheal Aspirate (QEA) Comparing With Quantitative Bronchoalveolar Lavage (QBAL) Cultures to Identify the Pathogen of Ventilator Associated Pneumonia (VAP)." Chest 144, no. 4 (October 2013): 385A. http://dx.doi.org/10.1378/chest.1704765.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Clizer, David A., Ryan S. Samuel, and Paul M. Cline. "PSIV-21 Impact of Increasing Standardized Ileal Digestible valine:lysine in Diets Containing 30% Dried Distillers Grains with Solubles on Early Grow-finish Pig Performance." Journal of Animal Science 99, Supplement_1 (May 1, 2021): 187. http://dx.doi.org/10.1093/jas/skab054.311.

Full text

Abstract:

Abstract Minimal research has investigated the valine (Val) requirement in grow-finish pig diets, especially when diets contain dried distillers grains plus solubles (DDGS). Therefore, the objective of this study was to determine the standardized ileal digestible (SID) Val:lysine (Lys) requirement in diets containing 30% DDGS. A total of 2,430 pigs (39.4 ± 0.21 kg) were used in a 28-d trial (15 replicates per treatment). Pens were randomly allotted within block to one of six dietary treatments: 30% DDGS diets with a SID Val:Lys ratio of 60, 65, 70, 75, and 80% or a corn-soybean meal diet (CS). Data were analyzed as a randomized complete block, pair-wise comparisons and single degree of freedom orthogonal polynomials (DDGS diets only) were used to evaluate treatment responses, and pen was the experimental unit. Straight broken line (SBL) and quadratic broken line (QBL) regression analysis was used to estimate the SID Val requirement. Increasing SID Val:Lys up to 70% in 30% DDGS increased final BW, ADG and G:F (quadratic; P < 0.001), while increasing SID Val:Lys up to 75% in DDGS diets increased ADFI (quadratic; P < 0.001) Pigs fed CS had greater (P < 0.032) ADG, G:F, and ADFI compared to diets containing 30% DDGS except for cumulative ADFI of pigs receiving diets with 75% SID Val:Lys (P = 0.167). The SBL analysis estimated SID Val:Lys requirement at 66.4, 65.4, and 68.0% for ADG, ADFI, and G:F of pigs from 39.4 to 52.9 kg of body weight (BW) and 66.8, 65.7, and 70.4% for the pigs between the BW of 52.9 and 66.4 kg. The QBL analysis revealed a similar SID Val:Leucine ratio of 52.2% for G:F in both periods. This data suggests a SID Val:Lys requirement of 66.6% in diets containing 30% DDGS for pigs between the BW of 39.4 to 66.4 kg. Increasing the SID Val:Lys ratio in 30% DDGS diets did not improve performance congruent to CS fed pigs.

APA, Harvard, Vancouver, ISO, and other styles

39

Crawford, Daniel, Anna Levit, Navid Ghadermarzy, Jaspreet S. Oberoi, and Pooya Ronagh. "Reinforcement learning using quantum Boltzmann machines." Quantum Information and Computation 18, no. 1&2 (February 2018): 51–74. http://dx.doi.org/10.26421/qic18.1-2-3.

Full text

Abstract:

We investigate whether quantum annealers with select chip layouts can outperform classical computers in reinforcement learning tasks. We associate a transverse field Ising spin Hamiltonian with a layout of qubits similar to that of a deep Boltzmann machine (DBM) and use simulated quantum annealing (SQA) to numerically simulate quantum sampling from this system. We design a reinforcement learning algorithm in which the set of visible nodes representing the states and actions of an optimal policy are the first and last layers of the deep network. In absence of a transverse field, our simulations show that DBMs are trained more effectively than restricted Boltzmann machines (RBM) with the same number of nodes. We then develop a framework for training the network as a quantum Boltzmann machine (QBM) in the presence of a significant transverse field for reinforcement learning. This method also outperforms the reinforcement learning method that uses RBMs.

APA, Harvard, Vancouver, ISO, and other styles

40

Souza, R. C., L. R. Pereira, L. M. Starling, J. N. Pereira, T. A. Simões, J. A. C. P. Gomes, and A. H. S. Bueno. "Effect of Microstructure on Hydrogen Diffusion in Weld and API X52 Pipeline Steel Base Metals under Cathodic Protection." International Journal of Corrosion 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/4927210.

Full text

Abstract:

The aim of this research was to evaluate the influence of microstructure on hydrogen permeation of weld and API X52 base metal under cathodic protection. The microstructures analyzed were of the API X52, as received, quenched, and annealed, and the welded zone. The test was performed in base metal (BM), quenched base metal (QBM), annealed base metal (ABM), and weld metal (WM). Hydrogen permeation flows were evaluated using electrochemical tests in a Devanathan cell. The potentiodynamic polarization curves were carried out to evaluate the corrosion resistance of each microstructure. All tests were carried out in synthetic soil solutions NS4 and NS4 + sodium thiosulfate at 25°C. The sodium thiosulfate was used to simulate sulfate reduction bacteria (SRB). Through polarization, assays established that the microstructure does not influence the corrosion resistance. The permeation tests showed that weld metal had lower hydrogen flow than base metal as received, quenched, and annealed.

APA, Harvard, Vancouver, ISO, and other styles

41

Rath, P. K., B. Shukla, K. Chaturvedi, V. K. Nautiyal, R. Chandra, and P. K. Raina. "Nuclear transition matrix elements for neutrinoless double-β decay within Rp-violating squark-neutrino mechanism." International Journal of Modern Physics E 29, no. 08 (August 2020): 2050066. http://dx.doi.org/10.1142/s0218301320500664.

Full text

Abstract:

Within the squark-neutrino mechanism of [Formula: see text]-violating SUSY, sets of 12 nuclear transition matrix elements (NTMEs) are calculated for the neutrinoless double-[Formula: see text] decay [Formula: see text] of [Formula: see text]Zr, [Formula: see text]Mo, [Formula: see text]Pd, [Formula: see text]Te and [Formula: see text]Nd isotopes. Specifically, four sets of HFB wave functions generated with four different parametrizations of the pairing plus multipolar two-body interactions, dipole form factor and three different parametrizations of the Jastrow short-range correlations are employed in the calculation of NTMEs with two possible prescriptions for the hadronization, namely the two-nucleon mode and the pionic mode. Without (with) Miller–Spencer parametrization of short-range correlation, uncertainties in average NTMEs [Formula: see text] (QBM), [Formula: see text] (NRQM), [Formula: see text] (FF3) and [Formula: see text] turn out be 11–18% (29–37%), 11–16% (27–31%), 5–12% (13–17%) and 3–13% (9–15%), respectively.

APA, Harvard, Vancouver, ISO, and other styles

42

Thanasilungura, Korachan, Sukanya Kranto, Tidarat Monkham, Sompong Chankaew, and Jirawat Sanitchon. "Improvement of a RD6 Rice Variety for Blast Resistance and Salt Tolerance through Marker-Assisted Backcrossing." Agronomy 10, no. 8 (August 1, 2020): 1118. http://dx.doi.org/10.3390/agronomy10081118.

Full text

Abstract:

RD6 is one of the most favorable glutinous rice varieties consumed throughout the north and northeast of Thailand because of its aroma and softness. However, blast disease and salt stress cause decreases in both yield quantity and quality during cultivation. Here, gene pyramiding via marker-assisted backcrossing (MAB) using combined blast resistance QTLs (qBl 1, 2, 11, and 12) and Saltol QTL was employed in solving the problem. To pursue our goal, the RD6 introgression line (RGD07005-12-165-1), containing four blast-resistant QTLs, were crossed with the Pokkali salt tolerant variety. Blast resistance evaluation was thoroughly carried out in the fields, from BC2F2:3 to BC4F4, using the upland short-row and natural field infection methods. Additionally, salt tolerance was validated in both greenhouse and field conditions. We found that the RD6 “BC4F4 132-12-61” resulting from our breeding programme successfully resisted blast disease and tolerated salt stress, while it maintained the desirable agronomic traits of the original RD6 variety. This finding may provide a new improved rice variety to overcome blast disease and salt stress in Northeast Thailand.

APA, Harvard, Vancouver, ISO, and other styles

43

MacMurray, A. J., J. I. Bell, D. Denney, D. Watling, L. S. Foster, and H. O. McDevitt. "Molecular mapping class II polymorphisms in the human major histocompatibility complex. II. DQ beta." Journal of Immunology 139, no. 2 (July 15, 1987): 574–86. http://dx.doi.org/10.4049/jimmunol.139.2.574.

Full text

Abstract:

Abstract The restriction fragment length polymorphisms have been determined for six restriction enzymes (Bam HI, Bg1 II, Eco RI, Hinc II, Hind III, and Pvu II) and a DQ beta probe on 25 cell lines that are homozygous by consanguinuity at the MHC. These patterns reflect both DR haplotypes and DQ types of the cells tested. At least one non-polymorphic band is present in all the cell lines with every restriction enzyme except Hinc II. This band most probably represents DX beta hybridization. The polymorphic bands indicate that more polymorphism exists in the DQ subregion than is predicted serologically. Each DR haplotype is associated with a unique set of restriction fragments except for DR2 and DR6. The patterns are largely consistent within each DR haplotype. In addition, some bands reflect the established DQ specificities DQw1 and DQw2. Individual bands can be identified that are unique to the haplotypes DR1, DR4, DR5, and DR6 and the DQw1- and DQw2-associated haplotypes. Subdivisions of haplotypes can be identified with this probe. In particular, MVL (DR1), Akiba (DR2), QBL (DR3), FPF (DR5), and APD (DR6) have polymorphisms that distinguish them from other members of their DR haplotype.

APA, Harvard, Vancouver, ISO, and other styles

44

Arukala, Suchith Reddy, and Rathish Kumar Pancharathi. "Integration of advances in sustainable technologies for the development of the Sustainable Building Assessment Tool." International Journal of Technology Management & Sustainable Development 19, no. 3 (October 1, 2020): 335–60. http://dx.doi.org/10.1386/tmsd_00030_1.

Full text

Abstract:

The construction sector is a resource-driven and resource-dependent industry. A rising global interest to incorporate sustainability principles in the policy-making means a careful balancing of economic growth with sustainability. To achieve this end in the Indian building sector, a triple-bottom-line-based building assessment tool like GRIHA and IGBC was introduced for assessing building sustainability. However, to revitalize the ideas of Reduce, Replace, Reuse, Recycle and Renovate (the ‘5Rs’) into implementable solutions, the technological dimension is introduced to form a quadruple bottom line (QBL) approach, i.e., social, environmental, economic and technological (SEET), for achieving sustainable construction. This study aims to address the necessity to add a new dimension, viz. technological advances in the sustainability arena of the construction industry. The objective of the study is to include technological advances in building materials, construction processes and techniques and design philosophies in the developed SBAT framework. In this extended and upgraded SBAT 2.0, advances in sustainability (AS) criterion accounts for 11.5 per cent showing its significance in achieving building sustainability. The use of discrete reinforcement, additive manufacturing, 3D printing, design based on packing density and rheological properties of concrete, use of alkali-activated materials in the mix-design and performance-based design concepts that affect future sustainability are successfully brought into the fold of SBAT framework.

APA, Harvard, Vancouver, ISO, and other styles

45

Julieta, Ni Putu Narithya, and Made Kurnia Widiastuti Giri. "Postpartum Hemorrhage: Kegawatdaruratan dalam Persalinan Ibu Hamil." Ganesha Medicine 1, no. 1 (October 15, 2021): 48. http://dx.doi.org/10.23887/gm.v1i1.31709.

Full text

Abstract:

Postpartum hemorrhage merupakan penyebab kematian tertinggi pada ibu hamil utamanya pada negara berkembang. Hal ini disebabkan oleh berbagai kondisi yang di kelompokkan dalam 4T yaitu tone, tissue, trauma, dan trombosis namun atoni uteri yang termasuk dalam kelompok tone menempati posisi teratas. Tingginya angka kematian di negara berkembang memiliki korelasi dengan penatalaksanaan manajemen aktif kala tika. Ketersediaan oksitosin dan uterotonikyang terbatas di berbagai wilayah menyebabkan manajemen aktif kala tiga tidak bisa dilakukan, hal ini berpotensi tinggi berujung pada postpartum hemorrhage. Di lain sisi, aspek kultur budaya, sosial, ekonomi, dan tingkat pendidikan dari masyarakat juga mempengaruhi tingkat mortalitas dari postpartum hemorrhage. Postpartum hemorrhage terjadi dengan cepat dan tak terprediksi sehingga klinisi harus segera menyadari saat hal ini terjadi. Hingga saat ini belum ada algoritma tatalaksana yang pasti terkait pencegahan postpartum hemorrhage namun kunci dari keberhasilan penanganan adalah identifikasi penyebab perdarahan yang akurat dan cepat. Identifikasi dari postpartum hemorrhage dapat dilakukan dengan Obstetric Shock Index (OSI), sistem pengukuran menggunakan Quantitative Blood Loss (QBL), dan The Rule of 30. Penatalaksanaan terkait postpartum hemorrhage disesuaikan dengan kondisi dari ibu saat persalinan dan juga tahapan persalinan. Pasien dengan resiko postpartum hemorrhage akan mendapatkan tatalaksana yang berbeda baik pada kala satu, kala dua, dan kala tiga. Kunci dari pencegahan postpartum hemorrhage adalah dengan pemberian oksitosin dan uterotonik. Pencegahan dapat dilakukan dengan melakukan program pengenalan dan pemanfaatan fasilitas kesehatan serta melakukan manajemen aktif kala tiga Kata kunci: Postpartum hemorrhage, kematian, ibu hamil

APA, Harvard, Vancouver, ISO, and other styles

46

Mishra, Nalini, Lalitha Priya Nekkanti, Poulami Barma, Ishan Mishra, and Ishan Mishra. "Adjunctive misoprostol for prevention of post-partum haemorrhage: a pragmatic strategy of selective sequential administration." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 10, no. 2 (January 28, 2021): 669. http://dx.doi.org/10.18203/2320-1770.ijrcog20210325.

Full text

Abstract:

Background: To evaluate the effect of adjunctive misoprostol in preventing postpartum haemorrhage (PPH) by selective administration above threshold bleeding in order to reduce its side effects in comparison with primary prevention with oxytocin alone.Methods: It was a prospective observational cohort study conducted at Government medical College of central India. Population included 500 low risk women delivering vaginally. After having received oxytocin as primary prevention, women were monitored for bleeding by quantitative assessment of blood loss (QBL) using an innovative drape (kept prepared at the point of care) and once bleeding crossed 350 ml mark, alternate women were given 800 µg misoprostol sublingually as an adjuvant (study group) and compared with those who did not receive adjuvant misoprostol (control group). Main outcome measure: Comparing the incidence of PPH and side effects between study and control group.Results: 150 women had blood loss >350 ml which constituted 76 women in study and control group each. Incidence of PPH was significantly less in the study group (10.52 versus 22.36%, p<0.05, RR 0.470 95% CI= 0.216-1.024). Though side effects were more (38.15%) in study group but these were mild in nature and when the number was extrapolated to all recruited women, the incidence came down to 11.6%.Conclusions: Sequential adjuvant misoprostol at 350 ml blood loss after primary prevention with oxytocin is an effective and pragmatic strategy for preventing PPH when compared to oxytocin alone but with reduced overall side effects owing to less number of women receiving misoprostol.

APA, Harvard, Vancouver, ISO, and other styles

47

Tibensky, D., R. DeMars, E. W. Holowachuk, and T. L. Delovitch. "Sequence and gene transfer analyses of HLA-CwBL18 (HLA-C blank) and HLA-Cw5 genes. Implications for the control of expression and immunogenicity of HLA-C antigens." Journal of Immunology 143, no. 1 (July 1, 1989): 348–55. http://dx.doi.org/10.4049/jimmunol.143.1.348.

Full text

Abstract:

Abstract Our previous studies suggested that a serologically undetectable HLA-C blank allele (HLA-CwBL18) is either a variant Cw5 allele or a novel HLA-C Ag. To examine these possibilities, the CwBL18 and Cw5 genes from the TCC (HLA-A1, -A2, -B52, -B18, -Cw-, -Cw-) and QBL (HLA-A26, -B18, -Cw5) EBV-transformed B lymphoblastoid cell lines (LCL) were cloned, sequenced, and transferred into HLA-A, -B, -C null LCL mutant .221 cells. The CwBL18 Ag was detected on the cell surface of CwBL18 transferents by flow cytometry with the anti-class I mAb W6/32 but not by complement-mediated cytotoxicity with currently available HLA-C specific antisera. Sequence analysis of the Cw-BL18 gene indicated that the CwBL18 Ag is "C"-like because it contains all C-locus-specific residues and amino acid replacements commonly found in HLA-C alleles. However, the amino acid sequence of the CwBL18 Ag is unusual; CwBL18 lacks unique allele-specific residues when compared with the sequences of other HLA-C alleles. Moreover, apart from the C-locus-specific differences, the sequence of CwBL18 is identical to the HLA class I consensus sequence. This striking homology of CwBL18 to other HLA class I alleles suggests that CwBL18 may be a weak Ag. Taken together, these data demonstrate that CwBL18 is not a variant Cw5 Ag but is a newly described HLA-C Ag. In contrast to CwBL18, the Cw5 Ag is serologically detectable on the cell surface of Cw5 transferents with HLA-specific allo-antisera. Rather unexpectedly, Cw5 was usually expressed at a lower level than CwBL18 on the surface of .221 transferents as evaluated by W6/32 mAb binding analyses. The sequence of Cw5 revealed several unique amino acid replacements. Two of these substitutions, at residue 35 of the alpha 1 domain and residue 275 of the transmembrane domain, may be responsible for the reduced cell surface expression of Cw5. Additional unique replacements at residues 138 and 177 of the alpha 2 domain suggest that these amino acids may be important in the formation of an epitope recognized by a Cw5-specific antibody.

APA, Harvard, Vancouver, ISO, and other styles

48

Hermawati, Adya. "Transglobal leadership approach to sustainable tourism competitiveness at tourism sector-engaged MSMEs through integrated human resource performance and responsible marketing." International Journal of Tourism Cities 6, no. 4 (June 5, 2020): 863–83. http://dx.doi.org/10.1108/ijtc-06-2019-0085.

Full text

Abstract:

Purpose This study aims to examine the effect of transglobal leadership on quality of work life (QWL), job involvement, organizational citizenship behavior (OCB) and human resource (HR) performance of tourism sector-engaged micro, small and medium enterprises (MSMEs) in East Java; to examine the moderating role of QWL, job involvement and OCB in the effect of transglobal leadership on HR performance of tourism sector-engaged MSMEs in East Java; to examine the effect of HR performance of tourism sector-engaged MSMEs on responsible tourism marketing and sustainable tourism competitiveness in East Java; and to examine the mediating role of responsible tourism marketing in the effect of HR performance of tourism sector-engaged MSMEs on sustainable tourism competitiveness in East Java. Design/methodology/approach The population of this research was all HR executives of tourism sector-engaged MSMEs in East Java and domestic and foreign tourists in East Java. The sampling of the tourism sector-engaged MSMEs in East Java (in 16 tourism potential cities) was performed using a purposive sampling technique. Determination of the sample size was made using the minimum criterion from structural model, ranging from 100 to 200. Thus, it was determined that the number of tourism sector-engaged MSMEs studied in this research was 200 enterprises from 16 tourism potential cities in East Java. From each tourism sector MSME, four employees and three tourists were selected. In total, this research involved 800 employees and 600 tourists (both domestic and foreign). Findings This research found that transglobal leadership (X) , QBL (M1), job involvement (M2) and OCB (M3) had an effect on HR performance (Y). The results of this research highlighted that QWL variable (M1) moderated the effect of transglobal leadership (X) on HR performance (Y). It was found that job involvement variable (M2) moderated the effect of transglobal leadership (X) on HR performance (Y). This research also detected that OCB variable (M3) moderated the effect of transglobal leadership (X) on HR performance (Y). This research found that HR performance (Y) had an effect on responsible marketing (Z1). It was obtained in this research that HR performance (Y) also had an effect on sustainable tourism competitiveness (Z2). Finally, this research found that responsible marketing (Z1) had an effect on sustainable tourism competitiveness (Z2). Originality/value Regarding the originality of this research, the holistic compilation was integrated from the theoretical concept of the HR and marketing strategies through the implementation of the tourism marketing concept and application that are responsible for tourism sector-engaged MSMEs in East Java. Of course, tourists need to get a good understanding of the marketing strategy to participate in controlling the sustainable tourism competitiveness in East Java.

APA, Harvard, Vancouver, ISO, and other styles

49

Zoufal, Christa, Aurélien Lucchi, and Stefan Woerner. "Variational quantum Boltzmann machines." Quantum Machine Intelligence 3, no. 1 (February 22, 2021). http://dx.doi.org/10.1007/s42484-020-00033-7.

Full text

Abstract:

AbstractThis work presents a novel realization approach to quantum Boltzmann machines (QBMs). The preparation of the required Gibbs states, as well as the evaluation of the loss function’s analytic gradient, is based on variational quantum imaginary time evolution, a technique that is typically used for ground-state computation. In contrast to existing methods, this implementation facilitates near-term compatible QBM training with gradients of the actual loss function for arbitrary parameterized Hamiltonians which do not necessarily have to be fully visible but may also include hidden units. The variational Gibbs state approximation is demonstrated with numerical simulations and experiments run on real quantum hardware provided by IBM Quantum. Furthermore, we illustrate the application of this variational QBM approach to generative and discriminative learning tasks using numerical simulation.

APA, Harvard, Vancouver, ISO, and other styles

50

RAZIQ, ABDUL, SYED UMER JAN, RAHMAN GUL, YOUSAF KHAN, TAJALA AMAN, and PERVAIZ AKHTAR SHAH. "RELATIVE COMPARISON OF STABILITY AND DEGRADATION OF METHYLCOBALAMIN TABLETS OF DIFFERENT BRANDS AT DIFFERENT STORAGE SETTINGS." International Journal of Applied Pharmaceutics, May 7, 2021, 171–75. http://dx.doi.org/10.22159/ijap.2021v13i3.41263.

Full text

Abstract:

Objective: To assess relative comparison of stability and degradation of Methylcobalamin tablets of different brands at various storage circumstances. Methods: The comparative in vitro study of Methycobal (innovator brand) with its other 5 different brands Cobalamin, Neuromet, Incobal, Qbal and Mecobal was organized for evaluation of physicochemical features of hardness, thickness, friability, weight variation, disintegration time and accelerated stability at 3 temperatures, 25 °C, 30 °C±65 % and 40 °C±75 % respectively for 3 mo. Later all brands were passed through HPLC for checking the extent of degradation of drug products. Results: All tablet brands were within the weight variation specified limits except Mecobal with a relative standard deviation of 6.83%. The weight variation values of Methycobal, Cobalamin, Neuromet, Incobal, Qbal and Mecobal were 0.29%, 0.11%, 0.09%, 0.13%, 0.09% and 0.14% after friability test respectively as per standard limits. The average thickness of Cobalamin, Incobal and Mecobal were not within specified limits. The average hardness of all trades was within limits except Cobalamin and Mecobal exceeding 6kp. The disintegration time of all companies was as per specifications. Conclusion: Qbal was found economical and cost-effective. However, study facts unveiled no noteworthy variety in the Q. C assessments of Methylcobalamin brands.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'QBML'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles