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Attributional and consequential environmental assessment of using waste cooking oil- and poultry fat-based biodiesel blends in urban buses: a real-world operation condition study
Mohammad Rajaeifar;Meisam Tabatabaei;Reza Abdi;Ali Mohammad Latifi;Fatemeh ...
Academic Journal Academic Journal | Biofuel Research Journal, Vol 4, Iss 3, Pp 638-653 (2017) Please log in to see more details
Urban public transportation sector in general is heavily dependent on fossil-oriented ... more
Attributional and consequential environmental assessment of using waste cooking oil- and poultry fat-based biodiesel blends in urban buses: a real-world operation condition study
Biofuel Research Journal, Vol 4, Iss 3, Pp 638-653 (2017)
Urban public transportation sector in general is heavily dependent on fossil-oriented fuels, e.g., diesel. Given the fact that a major proportion of urban pollution and the consequent threats towards public health are attributed to this sector, serious efforts at both technical and political levels have been being made to introduce less-polluting fueling regimes, e.g., partial replacement of diesel with biodiesel. In line with that, the present study was aimed at evaluating the emissions attributed to 5% blends of waste cooking oil (WCO) and poultry fat (PF) biodiesel fuels (i.e., B5-WCO and B5-PF fuel blends) when used in urban buses during idle operation mode. Moreover, the attributional and consequential environmental impacts of using these fuel blends were also investigated through a well to wheel life cycle assessment (LCA) by considering the real-world condition combustion data using ten urban buses. The findings of the ALCA revealed that the application of 1 L B5-WCO fuel blend could potentially reduce the environmental burdens in human health, ecosystem quality, and resources damage categories compared with using the B5-PF fuel blend. The situation was opposite for climate change damage category in which using 1 L B5-PF fuel blend had a lower impact on the environment. Overall, the environmental hotspots in the B5-WCO and B5-PF life cycles were identified as the combustion stage as well as the diesel production and transportation. From the consequential perspective, using 1 L B5-WCO fuel blend could potentially decrease the environmental burdens in human health, ecosystem quality, and resources damage categories. While, the situation was different for climate change damage category where using 1 L B5-PF fuel blend could have a lower impact on the environment. In conclusion, using B5-WCO fuel blend as an alternative for diesel could be an environmentally-friendly decision for the Iranian urban transportation sector at the policy level as long as the marginal suppliers of oil would be the same as the countries considered herein, i.e., Malaysia and Argentina.

Subject terms:

Urban public transportation sector - Bus - Idle operation - Biodiesel - Attributional LCA - Consequential LCA - Fuel - TP315-360 - Energy industries. Energy policy. Fuel trade - HD9502-9502.5

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Experimental investigation of a novel PVt/heat pump system for energy-efficient poultry houses.
Gurler, Tugba;Elmer, Theo;Cui, Yuanlong;Omer, Siddig;Riffat, Saffa
Academic Journal Academic Journal | International Journal of Low Carbon Technologies. Dec2018, Vol. 13 Issue 4, p404-413. 10p. 1 Color Photograph, 5 Diagrams, 7 Charts, 5 Graphs. Please log in to see more details
Despite the promise of abundant renewable energy resources in the world, the poultry s... more
Experimental investigation of a novel PVt/heat pump system for energy-efficient poultry houses.
International Journal of Low Carbon Technologies. Dec2018, Vol. 13 Issue 4, p404-413. 10p. 1 Color Photograph, 5 Diagrams, 7 Charts, 5 Graphs.
Despite the promise of abundant renewable energy resources in the world, the poultry sector is still dominated by traditional energy sources. In this study, results of a field trial of an innovative and cost-effective HVAC system design applied to a poultry house have been presented. This system comprises of two integrated novel components; a polyethylene heat exchanger (PHE) based a photovoltaic thermal (PVt) array and an efficient and innovative ground pipe array coupled to a heat pump driven HVAC system. The analysis included the daily PV electrical output and heat pump performance. The results of the experimental study reveal that 3733 kWh and 2432 kWh heat energy have been supplied in the 7-week growth cycle of chickens condition, respectively. The COP of the HP has been calculated for the winter period and observed between 2.3 and 2.43. The PV system was able to generate 1876 kWh electrical energy with potential to meet HP's energy needs in the most energy needing period. [ABSTRACT FROM AUTHOR]

Subject terms:

Polyethylene - Heat pumps - Poultry housing - Heat exchangers - Cost effectiveness

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GreenFILE

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Development of an RT-qPCR assay for the specific detection of a distinct genetic lineage of the infectious bursal disease virus.
Tomás, Gonzalo;Hernández, Martín;Marandino, Ana;Techera, Claudia;Grecco, So...
Academic Journal Academic Journal | Avian Pathology; Apr2017, Vol. 46 Issue 2, p150-156, 7p Please log in to see more details
The infectious bursal disease virus (IBDV) is a major health threat to the world’s pou... more
Development of an RT-qPCR assay for the specific detection of a distinct genetic lineage of the infectious bursal disease virus.
Avian Pathology; Apr2017, Vol. 46 Issue 2, p150-156, 7p
The infectious bursal disease virus (IBDV) is a major health threat to the world’s poultry industry despite intensive controls including proper biosafety practices and vaccination. IBDV (Avibirnavirus, Birnaviridae) is a non-enveloped virus with a bisegmented double-stranded RNA genome. The virus is traditionally classified into classic, variant and very virulent strains, each with different epidemiological relevance and clinical implications. Recently, a novel worldwide spread genetic lineage was described and denoted as distinct (d) IBDV. Here, we report the development and validation of a reverse transcription-quantitative polymerase chain reaction (RT-qPCR) assay for the specific detection of dIBDVs in the global poultry industry. The assay employs a TaqMan-MGB probe that hybridizes with a unique molecular signature of dIBDV. The assay successfully detected all the assessed strains belonging to the dIBDV genetic lineage, showing high specificity and absence of cross-reactivity with non-dIBDVs, IBDV-negative samples and other common avian viruses. Using serial dilutions ofin vitro-transcribed RNA we obtained acceptable PCR efficiencies and determination coefficients, and relatively small intra- and inter-assay variability. The assay demonstrated a wide dynamic range between 103and 108RNA copies/reaction. This rapid, specific and quantitative assay is expected to improve IBDV surveillance and control worldwide and to increase our understanding of the molecular epidemiology of this economically detrimental poultry pathogen. [ABSTRACT FROM PUBLISHER]

Subject terms:

INFECTIOUS bursal disease virus - BIRNAVIRIDAE - BIOSAFETY - QUANTITATIVE research - POULTRY viruses

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Complementary Index

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Modeling as a research tool in poultry science.
Gous, R. M.
Academic Journal Academic Journal | Poultry Science; Jan2014, Vol. 93 Issue 1, p1-7, 7p Please log in to see more details
The World's Poultry Science Association (WPSA) is a long-established and unique organi... more
Modeling as a research tool in poultry science.
Poultry Science; Jan2014, Vol. 93 Issue 1, p1-7, 7p
The World's Poultry Science Association (WPSA) is a long-established and unique organization that strives to advance knowledge and understanding of all aspects of poultry science and the poultry industry. Its 3 main aims are education, organization, and research. The WPSA Keynote Lecture, titled “Modeling as a research tool in poultry science,” addresses 2 of these aims, namely, the value of modeling in research and education. The role of scientists is to put forward and then to test theories. These theories, or models, may be simple or highly complex, but they are aimed at improving our understanding of a system or the interaction between systems. In developing a model, the scientist must take into account existing knowledge, and in this process gaps in our knowledge of a system are identified. Useful ideas for research are generated in this way, and experiments may be designed specifically to address these issues. The resultant models become more accurate and more useful, and can be used in education and extension as a means of explaining many of the complex issues that arise in poultry science. [ABSTRACT FROM AUTHOR]

Subject terms:

POULTRY -- Societies, etc. - POULTRY industry - POULTRY research - SIMULATION methods & models - ORGANIZATIONAL aims & objectives - KNOWLEDGE gap theory

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Studies Concerning the Dynamics of Productive Indicators on Gray Guinea Fowl (Numida Meleagris).
ROŞCA, Dan Claudiu;USTUROI, Marius Giorgi
Academic Journal Academic Journal | Bulletin of the University of Agricultural Sciences 2018, Vol. 75 Issue 1, p1-4, 4p Please log in to see more details
Growing guinea-fowls is an area of less research activity, although meat and eggs from... more
Studies Concerning the Dynamics of Productive Indicators on Gray Guinea Fowl (Numida Meleagris).
Bulletin of the University of Agricultural Sciences 2018, Vol. 75 Issue 1, p1-4, 4p
Growing guinea-fowls is an area of less research activity, although meat and eggs from this species are increasingly sought by consumers around the world. In addition, there is a number of very valuable biological features that makes this sector such attractive. This paper deals with a study on the productive performance of the gray guinea fowl under controlled ambient conditions. The biological material consisted of 50 specimens of guinea-fowls, purchased from a producer in our country. Those guinea fowls were grown according to the species-specific technology, from one day to 77 days. The target indicators were body weight, weight gain, feed consumption and stockholding proportion, determined in accordance with the poultry research methodology. The data were statistically processed using the Anova (Analysis of variance) program. For the gray guinea fowl, the growing period has been divided into three stages of age, differentiated by the protein level of the feed. At the time of population, the body weight of birds was 28.09 ± 0.35 g, and on the day of slaughter (77th day), 1923.76 ± 18.29 g. This weight was achieved with a feed conversion index of 1: 3.64. The gray guinea fowl exhibits good organic resistance and ensures satisfactory meat production under conditions of optimal nutrient feeding. [ABSTRACT FROM AUTHOR]

Subject terms:

GUINEAFOWL - POULTRY reproduction - POULTRY farming

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Supplemental Index

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Buying decision-making process for poultry meat
Tina Vukasovič
Academic Journal Academic Journal | British Food Journal, 2010, Vol. 112, Issue 2, pp. 125-139. Please log in to see more details

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The long view: 40 years of avian leukosis research.
Payne LN;Nair V
Academic Journal Academic Journal | Publisher: Informa Healthcare Country of Publication: England NLM ID: 8210638 Publication Model: Print Cited Medium: Internet ISSN: 1465-3338 (Electronic) Linking ISSN: 03079457 NLM ISO Abbreviation: Avian Pathol. Subsets: MEDLINE Please log in to see more details
The present review is aimed at the non-specialist reader and is one of a number being ... more
The long view: 40 years of avian leukosis research.
Publisher: Informa Healthcare Country of Publication: England NLM ID: 8210638 Publication Model: Print Cited Medium: Internet ISSN: 1465-3338 (Electronic) Linking ISSN: 03079457 NLM ISO Abbreviation: Avian Pathol. Subsets: MEDLINE
The present review is aimed at the non-specialist reader and is one of a number being written on important diseases of poultry to celebrate the 40th anniversary of the birth of Avian Pathology, the journal of the World Veterinary Poultry Association. The diseases of the avian leukosis complex have a number of features of distinction. They were the first neoplastic diseases in any species to be shown, 100 years ago, to be transmissible and caused by viruses, and have consequently been studied extensively by biomedical scientists as models for the role of viruses in cancer. They also became, from around the 1920s, the major cause of mortality and economic loss to the developed poultry industry, and were studied by agricultural scientists searching to understand and control them. The remit of the review is to cover research carried out over the 40 years since 1971, when the journal was founded. In this review on avian leukosis, an introductory summary is given of knowledge acquired over the preceding 60 years. Subsequently a selection is provided of discoveries, both fundamental and more applied, that seem to us to be of particular importance and interest. Much of the work was carried out by biomedical scientists interested in cancer. Probably the most significant was the discovery in the avian retroviruses of oncogenes that cause leukosis and other tumours and of their origin from proto-oncogenes in normal cells. These oncogenes are involved in cancer in many species, including chickens and humans. Other work was performed by agricultural scientists interested in poultry disease. Interests of the two groups have overlapped, particularly as a result of a shift of emphasis to molecular biology research.

Subject terms:

Animals - Avian Leukosis Virus metabolism - History, 20th Century - History, 21st Century - Poultry - Avian Leukosis pathology - Avian Leukosis virology - Avian Leukosis Virus genetics - Research history - Retroviridae Proteins genetics

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MEDLINE

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Can micro health insurance reduce poverty? Evidence from Bangladesh.
Hamid, Syed Abdul;Roberts, Jennifer;Mosley, Paul
Periodical Periodical | Journal of Risk and Insurance. 2011, Vol. 78, Issue 1, pages. 26 Please log in to see more details

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Temperature, Humidity and Energy Consumption Forecasting in the Poultry Hall Using Artificial Neural Networknetwork
N Gholamrezaei;K Qaderi;K Jafari Naeimi
Academic Journal Academic Journal | Journal of Agricultural Machinery, Vol 7, Iss 2, Pp 546-557 (2017) Please log in to see more details
Introduction Energy consumption management is one of the most important issues in po... more
Temperature, Humidity and Energy Consumption Forecasting in the Poultry Hall Using Artificial Neural Networknetwork
Journal of Agricultural Machinery, Vol 7, Iss 2, Pp 546-557 (2017)
Introduction Energy consumption management is one of the most important issues in poultry halls management. Considering the situation of poultry as one of the largest and most developed industries, it is needed to control growing condition based on world standards. The neural networks as one of the intelligent methods are applied in a lot of fields such as classification, pattern recognition, prediction and modeling of processes. To detect and classify several agricultural crops, a research was conducted based on texture and color feature. The highest classification accuracy for vegetables, grains and fruits with using artificial neural network were 80%, 86% and 70%. In this research, the ability to Multilayer Perceptron (MLP) Neural Network in predicting energy consumption, temperature and humidity in different coordinate placement of electronic control unit sensors in the poultry house environment was examined. Materials and Methods The experiments were conducted in a poultry unit (3000 pieces) that is located in Fars province, Marvdasht city, Ramjerd town, with dimensions of 32 meters long, 7 meters wide and 2.2 meters height. To determine the appropriate placement of the sensor, 60 different points in terms of length, width and height in poultry were selected. Initially, the data was divided into two datasets. 80 percent of total data as a training set and 20 percent of total data as a test set. From180 observations, 144 data were used to train network and 36 data were used to test the process. There are several criteria for evaluating predictive models that they are mainly based according to the difference between the predicted outputs and actual outputs. To evaluate the performance of the model, two statistical indexes, mean squared error (MSE) and the coefficient of determination (R²) were used. Results and Discussions In this study, to train artificial neural network for predicting the temperature, humidity and energy consumption, the trainlm algorithm (Levenberg-Marquardt) was used. To simulate temperature, humidity and energy consumption, networks were trained with two and three layers, respectively. Network with two layers with10 neurons in the hidden layer and one neuron in the output layer with (R²) equal to 0.96 and (MSE) equal to 0.00912, was given the best result for predicting temperature. For humidity electronic sensors, results showed that network with three layers with the 10 neurons in the first hidden layer, 20 neurons in the second hidden layer and one neuron in the output layer with (R²) equal to 0.8 and (MSE) equal to 0.00783 was the best for predicting humidity. Finally, network with two layers with 10 neurons in the first hidden layer, 10 neurons in the second hidden layer and one neuron in the output layer was selected as the optimal structure for predicting energy consumption. For this topology, (R²) and MSE were determined to 0.98 and 0.00114, respectively. Linear and multivariate regression for the parameters affecting temperature, humidity and energy consumption of electronic sensors was determined by the STATGR software. Correlation coefficients indicated that parameters such as length, height and width of the electronic control sensors placed in the poultry hall justified 82% of the temperature changes, 61% of the humidity changes and 92% of the energy consumption changes. Therefore, comparing with correlation coefficients obtained from the neural network models, the highest correlation coefficient was related to energy parameter and the lowest correlation was linked to humidity parameter. Conclusions The results of the study indicated the high performance for predicting temperature, humidity and energy consumption. The networks hadthree inputs including length, width and height of electronic sensor positions and an output for temperature, humidity and energy consumption. For training networks the multiple layer perceptron (MLP) with error back propagation learning algorithm (BP) was used. Functions activity for all networks in hidden layers were tangentsigmoid and in the output layer, linear (purelin). Comparing the results of artificial neural network and logistic regression model showed that artificial neural network model with correlation coefficients of 0.98 (energy), 0.96 (temperature) and 0.8 (humidity) provided closer data to the actual data compared with regression models with correlation coefficients of 0.92, 0.82 and 0.61 for the energy, temperature and humidity respectively.

Subject terms:

Artificialneural network - Electronic control - Energy - Modeling - Temperature - Agriculture (General) - S1-972 - Engineering (General). Civil engineering (General) - TA1-2040

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One hundred years of the World's Poultry Science Association.
HUNTON, P.
Academic Journal Academic Journal | World's Poultry Science Journal; Dec2012, Vol. 68 Issue 4, p758-767, 10p Please log in to see more details
The World's Poultry Science Association was originally formed as the International Ass... more
One hundred years of the World's Poultry Science Association.
World's Poultry Science Journal; Dec2012, Vol. 68 Issue 4, p758-767, 10p
The World's Poultry Science Association was originally formed as the International Association of Poultry Instructors and Investigators in 1912. Its objectives were to foster the development of the poultry industry, and the exchange of information related to poultry science and technology. From small beginnings it has evolved into a strong international organisation with 7700 members in more than 80 countries. The association publishes the World's Poultry Science Journal and promotes and oversees World's Poultry Congresses. It is active in all areas of the poultry industry, from family poultry in developing countries to institutions of research and learning, and production and processing in the industrial world. [ABSTRACT FROM PUBLISHER]

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Hidden costs of supply management in a small market.(Author abstract)
Carter, Colin A.;Merel, Pierre
Academic Journal Academic Journal | Canadian Journal of Economics. May, 2016, Vol. 49 Issue 2, p. 555, 34 p. Please log in to see more details

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Bacterial species from retailed poultry eggs in Tshwane, South Africa : implication for consumers
Botha Francien S.;Buys Elna M.;Jambalang Alexander R.
Periodical Periodical | South African Journal of Science, Mar 2017, Vol 113, Issue 11-12, p. 1-7. Please log in to see more details

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Is poultry intake associated with colorectal cancer?
Zhao, Guo-Hua;Jiang, Shuang;Yan, Li-hui;Xie, Long-fei;Yang, Helen;Wang, Yue
Academic Journal Academic Journal | International Journal of Colorectal Disease; May2016, Vol. 31 Issue 5, p1087-1088, 2p Please log in to see more details
The article focuses on a study on whether poultry intake is associated with colorectal... more
Is poultry intake associated with colorectal cancer?
International Journal of Colorectal Disease; May2016, Vol. 31 Issue 5, p1087-1088, 2p
The article focuses on a study on whether poultry intake is associated with colorectal cancer (CRC). Topics covered include the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) recommending the limiting of intake of red meat and avoiding processed meat and the meta-analysis of a study showing that an increase in poultry intake of 50 grammes (g) per day being associated with six percent lower incidence of CRC.

Subject terms:

COLON cancer - POULTRY research - MEAT - PROCESSED foods - CARCINOGENICITY

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Harmonization of methodologies for the assessment of poultry meat quality features
Petracci, M.;Baeza, E.
Periodical Periodical | World's poultry science journal, 2011 Mar., v. 67, no. 1, p. 137-151. Please log in to see more details
Includes references
Many different methods measuring meat quality traits are avai... more
Harmonization of methodologies for the assessment of poultry meat quality features
World's poultry science journal, 2011 Mar., v. 67, no. 1, p. 137-151.
Includes references
Many different methods measuring meat quality traits are available which are based on different principles, and instruments and/or probes. In view of the complexity of meat processes after slaughter and quality trait determination, it is not surprising that the results obtained in different studies and laboratories are not always in agreement. For comparison of results it is therefore necessary to keep strictly to measurable specifications, which is why standardisation is indispensable. The Working Group 5 Poultry Meat Quality group of the WPSA European Federation has been asked to produce a document which would serve as a common base methodology that would permit comparison between research projects carried out by different groups, based on international research programmes. This paper represents the first step of this work including chemical (moisture, total lipids, proteins, ash, fatty acid composition, cholesterol, susceptibility to oxidation, amino acids, collagen and pigments) and physical traits (pH, R-value, colour, water holding capacity, texture and sarcomere length). For the evaluation of chemical composition, there are standard methods available which are largely adopted in the majority of published papers. However, there is still a need to standardise methods for determining the physical traits to facilitate comparisons between studies and to provide reference values.

Subject terms:

sarcomeres - fatty acid composition - slaughter - water holding capacity - texture - pigments - oxidation - equipment - cholesterol - poultry meat - meat quality - collagen - color - amino acids - research programs - research projects - normal values

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AGRIS

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Genetics, Receptor Binding, Replication, and Mammalian Transmission of H4 Avian Influenza Viruses Isolated from Live Poultry Markets in China.
Libin Liang;Guohua Deng;Jianzhong Shi;Shuai Wang;Qianyi Zhang;Huihui Kong;C...
Academic Journal Academic Journal | Journal of Virology. Feb2016, Vol. 90 Issue 3, p1455-1469. 15p. Please log in to see more details
H4 avian influenza virus (AIV) is one of the most prevalent influenza virus subtypes i... more
Genetics, Receptor Binding, Replication, and Mammalian Transmission of H4 Avian Influenza Viruses Isolated from Live Poultry Markets in China.
Journal of Virology. Feb2016, Vol. 90 Issue 3, p1455-1469. 15p.
H4 avian influenza virus (AIV) is one of the most prevalent influenza virus subtypes in the world. However, whether H4 AIVs pose a threat to public health remains largely unclear. Here, we analyzed the phylogenetic relationships, receptor binding properties, replication, and transmissibility in mammals of H4 AIVs isolated from live poultry markets in China between 2009 and 2012. Genomic sequence analysis of 36 representative H4 viruses revealed 32 different genotypes, indicating that these viruses are undergoing complex and frequent reassortment events. All 32 viruses tested could replicate in the respiratory organs of infected mice without prior adaptation. Receptor binding analysis demonstrated that the H4 AIVs bound to α-2,6-linked glycans, although they retained the binding preference for α-2,3-linked glycans. When we tested the direct-contact transmission of 10 H4 viruses in guinea pigs, we found that three viruses did not transmit to any of the contact animals, one virus transmitted to one of three contact animals, and six viruses transmitted to all three contact animals. When we further tested the respiratory droplet transmissibility of four of the viruses that transmitted efficiently via direct contact, we found that three of them could transmit to one or two of the five exposed animals. Our study demonstrates that the current circulating H4 AIVs can infect, replicate in, and transmit to mammalian hosts, thereby posing a potential threat to human health. These findings emphasize the continual need for enhanced surveillance of H4 AIVs. [ABSTRACT FROM AUTHOR]

Subject terms:

CHINA - AVIAN influenza - POULTRY research - INFLUENZA viruses - GENOTYPES

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Academic Search Complete

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