Relevant bibliographies by topics / Qat Extracts

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Qat Extracts'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Qat Extracts"

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Mokhtar Ali Amrani, Mohammed Bagash, and F. Yehya. "An Efficient Green Synthesis Method for the Synthesis of Silver Nanoparticles Using the Extraction of Catha Edulis Leaves." Albaydha University Journal 1, no. 2 (2020): 214–23. http://dx.doi.org/10.56807/buj.v1i2.24.

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The synthesis of nanoparticles using plant extracts has received great attentions during the last two decades. That is plausibly due to its simple, rapid, toxic-free, and efficient reactions. In this study, a unique green method for preparing silver nanoparticles (Ag NPs) using the extract of Qat (or Khat) leaves is reported. The method is cheap, easy and has a potential for mass production of nanoparticles. Qat is a fast growing plant used mostly as stimulant in Yemen and South African countries and contains dozens of phytochemicals in its leaves. These chemicals are extracted from Qat leaves
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Ngeny, Lilian C., Lucia K. Keter, Beatrice N. Irungu, et al. "In vitro Cytotoxic Activities of Catha edulis (Vahl) Forssk. Ex Endl. (Khat) Varieties from Kenya on Select Cancer Cell Lines." EAS Journal of Pharmacy and Pharmacology 5, no. 1 (2023): 8–13. http://dx.doi.org/10.36349/easjpp.2023.v05i01.002.

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Khat (Catha edulis (Vahl) Forssk.) is a herb from the Celastraceae family (also known as qat, gaad, or miraa). The leaves and stems are used medicinally and for recreational purposes. The communities that grow khat have identified different varieties based on perceived appearance and quality. This study aimed to evaluate the cytotoxicity of khat varieties grown in the Meru and Embu Counties of Kenya. Field studies were undertaken in the markets and farms in Meru and Embu Counties of Kenya to document and purchase local khat varieties. Dried khat was extracted with a 1:1 v/v MeOH: CH2Cl2 solven
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Shariff, Mansoor, Mohammed M. Al-Moaleem, and Nasser M. Al-Ahmari. "A Multidisciplinary Approach in the Treatment of Tempromandibular Joint Pain Associated with Qat Chewing." Case Reports in Dentistry 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/139419.

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Pain of the tempro-mandibular joint (TMJ) has a direct bearing to missing teeth and excessive physical activity. Consumption of qat requires chewing on the leaves to extract their juice for long hours. A 65-year-old male Yemeni patient, a Qat chewer, reported to the university dental hospital at King Khalid University complaining of pain in left temporomandibular joint with missing mandibular anterior teeth. A multidisciplinary approach for the overall treatment of the patient was decided. Initial treatment was the relief of patient’s pain with the help of a night guard. This was followed by a
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Potter, K. A., and R. W. Leid. "Isolation and partial characterization of an eosinophil chemotactic factor from metacestodes of Taenia taeniaeformis (ECF-Tt)." Journal of Immunology 136, no. 5 (1986): 1712–17. http://dx.doi.org/10.4049/jimmunol.136.5.1712.

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Abstract Eosinophil chemotactic activity associated with protein extracts of Taenia taeniaeformis metacestodes was investigated. Chemotactic activity was associated with the nonbound protein after QAE cellulose chromatography of a 3 M KCl extract of homogenized larvae. When this material was precipitated with ammonium sulfate, activity was present in the 40 to 80% precipitate. Upon rechromatography on QAE cellulose equilibrated in a low ionic strength buffer, eosinophil chemotactic activity was retained by the gel and eluted after application of the NaCl gradient. Gel filtration of Sephacryl S
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Kim, Yuwan, Si Won Kim, Hyoung Jae Lee, Kye-Han Lee, Jeong-Yong Cho, and Jae-Hak Moon. "Selection of Material with Excellent Antioxidant Activity from Plants of Warm Temperate Forests in Korea." Korean Tea Society 29, no. 2 (2023): 63–71. http://dx.doi.org/10.29225/jkts.2023.29.2.63.

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This study was performed to select an excellent antioxidant active material for 10 species of the family Fegaceae, a family of plants in warm temperate forests in Korea. The total phenolic and flavonoid contents, scavenging activities of DPPH, ABTS+ , and hydroxyl radicals, and reducing power of each hot water extract were examined. The Quercus acuta leaf (QA) extract (QAE) showed the highest activity in all tests. In addition, among the hot water, 30%, 50%, 70% EtOH, and EtOH QAE, the hot water extract was the most excellent in extraction yield, total phenolic content, and DPPH radical-scaven
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PIACENZA, L., R. RADI, F. GOÑI, and C. CARMONA. "CuZn superoxide dismutase activities from Fasciola hepatica." Parasitology 117, no. 6 (1998): 555–62. http://dx.doi.org/10.1017/s0031182098003394.

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The levels of superoxide dismutase (SOD) were determined in detergent-soluble, somatic and excretion–secretion (E–S) preparations from adult Fasciola hepatica using the xanthine oxidase system and visualized in substrate gels. Compared to detergent-soluble and somatic extracts, E–S products showed the highest SOD activity (88 ·5 U/mg), indicating active release to the medium in which parasites were maintained. SOD specific activity was also detected at high levels in E–S products from 3-week-old and 5-week-old immature migrating flukes (25 and 143 U/mg, respectively). In all preparations excep
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Keddy, Grace Gakii, Patrick Gachoki Kareru, Sammy Indire Wanakai, Mercy Wanjuki Karenju, George Kiprono Kisoi, and Peter Lemei Njenga. "Antioxidant and Antimicrobial Activity of Psidium guajava (Pomifera and Pyrifera) Aqueous Leaf Extract Varieties’." Advances in Research 24, no. 5 (2023): 124–37. http://dx.doi.org/10.9734/air/2023/v24i5964.

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Aims: Psidium guajava (Pomifera (red) and Pyrifera (white)) is commonly used in traditional medicine to treat gastrointestinal disorders. In this study, the antioxidant and antimicrobial activity of methanol extracts of P. guajava (Pomifera (Red) and Pyrifera (White) leave varieties were investigated.
 Methodology: The total phenolic (TPC) and flavonoid (TFC) contents and antioxidant capacities in terms of 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging, were determined, and the correlations among the results were assessed. The antimicrobial activity was assessed through agar disc diffusi
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Mohammed, Ali Hussein, Nasser Salh Lhwak, and Ahmed Abdulhadi Jabbar. "Extraction and identification of certain bioactive compounds with antibacterial activity from the green algae Cladophora glomerate." Medicra (Journal of Medical Laboratory Science/Technology) 7, no. 1 (2024): 19–23. http://dx.doi.org/10.21070/medicra.v7i1.1742.

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Cladophora glomerata algae extract was used to inhibit the growth of five bacterial species: Escherichia coli, Staphylococcus aureus, Proteus mirabilis, Citrobacter, and Klebsiella pneumoniae. Algae samples were collected from the river Euphrates in Al-Fadhiliya/Thi-Qar governorate and extracted into alcohol. The concentrations of the extracts were compared with five antibiotics. The 200% concentration showed the highest effectiveness against bacteria, with an inhibition zone of 28mm. The antibiotics Imipenem and Meropenem had an inhibition zone of 28mm, while Amikacin, Norfloxacin, and Pipera
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Mohd Yazid, Noor Shafifiyaz, Najihah Mohd Hashim, Hapipah Mohd Ali, and Rusea Go. "Phytochemical Profile, Antioxidant and Anti Proliferative Studies in Different Extracts of Artocarpus kemando Miq. Bark." Sains Malaysiana 50, no. 4 (2021): 967–87. http://dx.doi.org/10.17576/jsm-2021-5004-08.

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In this study, the stem bark of Artocarpus kemando was used to find alternative antioxidants from natural sources with fewer side effects. A. kemando wasextracted successively using hexane, chloroform and methanol solvents, and evaluated for antioxidant, cytotoxic, and antiproliferative activities. The extracts were investigated for determination of their total phenolic content (TPC) and total flavonoid content (TFC). Then, the antioxidant activities were evaluated using chemical based assays such as ferric reducing antioxidant power (FRAP), total antioxidant capacity, radical scavenging of 2,
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Ahlam Husain Farhoud Khalawi. "Study to detect cytotoxicity of The eggplant plant ( Solanum melongena L)." University of Thi-Qar Journal of agricultural research 11, no. 2 (2022): 36–44. http://dx.doi.org/10.54174/utjagr.v11i2.179.

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The current study included the cytotoxicity test of the active compounds isolated from the peels of the fruits of the eggplant plant, which is found in the local markets of Dhi Qar governorate and used for food and grown within the governorate and not imported during the period (July, August, September, October, November, December. January), the trend of human red blood cells for the purpose of determining the possibility of using them as drug alternatives in the future.
 The peels of the eggplant plant were extracted with hexane once, then the alkaloid extract was prepared from it again.
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Dissertations / Theses on the topic "Qat Extracts"

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Gulen, Elvan. "Fusing Semantic Information Extracted From Visual, Auditory And Textual Data Of Videos." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614582/index.pdf.

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In recent years, due to the increasing usage of videos, manual information extraction is becoming insufficient to users. Therefore, extracting semantic information automatically turns out to be a serious requirement. Today, there exists some systems that extract semantic information automatically by using visual, auditory and textual data separately but the number of studies that uses more than one data source is very limited. As some studies on this topic have already shown, using multimodal video data for automatic information extraction ensures getting better results by guaranteeing increas
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Benssam, Ali. "Digital Cockpits and Decision Support Systems. Design of Technics and Tools to Extract and Process Data from Heterogeneous Databases." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23599/23599.pdf.

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Sakout, Andaloussi Kenza, and Andaloussi Kenza Sakout. "Amélioration de l'expérience d'apprentissage dans un système hypermédia adaptatif éducatif grâce aux données extraites et inférées à partir des réseaux sociaux." Doctoral thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/37918.

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Avec l'émergence des formations en ligne accessibles pour tous, la personnalisation de l'apprentissage devient de plus en plus cruciale et présente de nouveaux défis aux chercheurs du domaine. Il est actuellement nécessaire de tenir compte de l'hétérogénéité du public cible et lui présenter des contenus éducatifs adaptés à ses besoins et sa façon d'apprendre afin de lui permettre de profiter au maximum de ces formations et éviter le décrochage. Ce travail de recherche s'inscrit dans le cadre des travaux sur la personnalisation de l'apprentissage à travers les systèmes hypermédias adaptatifs ut
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Almeida, J?nior Renato Ferreira de. "Avalia??o do potencial antiviral do extrato bruto da planta Caesalpinia echinata e da rifampicina contra v?rus dengue-2 em cultura de c?lulas." Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/20321.

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Book chapters on the topic "Qat Extracts"

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Otto, Wolfgang, Sharmila Upadhyaya, and Stefan Dietze. "Enhancing Software-Related Information Extraction via Single-Choice Question Answering with Large Language Models." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-65794-8_21.

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AbstractThis paper describes our participation in the Shared Task on Software Mentions Disambiguation (SOMD), with a focus on improving relation extraction in scholarly texts through generative Large Language Models (LLMs) using single-choice question-answering. The methodology prioritises the use of in-context learning capabilities of LLMs to extract software-related entities and their descriptive attributes, such as distributive information. Our approach uses Retrieval-Augmented Generation (RAG) techniques and LLMs for Named Entity Recognition (NER) and Attributive NER to identify relationsh
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Shen Chao, Qiu Xipeng, Huang Xuanjing, and Wu Lide. "Answering Definition Question: Ranking for Top-k." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2008. https://doi.org/10.3233/978-1-58603-891-5-839.

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As an important form of complex questions, definition question attracts much attention from QA researchers. For many of the definition question answering systems, it is a core step to rank the candidate answer sentences, so that the top-k in the ranked list can be extracted. We integrate these evidences as features into a whole framework, and propose a novel method to learning weights of these features to rank the candidate answer sentences.
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Wang, Ruxin, Wei Lu, Jixian Li, Shijun Xiang, Xianfeng Zhao, and Jinwei Wang. "Digital Image Splicing Detection Based on Markov Features in QDCT and QWT Domain." In Digital Forensics and Forensic Investigations. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-3025-2.ch006.

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Image splicing detection is of fundamental importance in digital forensics and therefore has attracted increasing attention recently. In this article, a color image splicing detection approach is proposed based on Markov transition probability of quaternion component separation in quaternion discrete cosine transform (QDCT) domain and quaternion wavelet transform (QWT) domain. First, Markov features of the intra-block and inter-block between block QDCT coefficients are obtained from the real parts and three imaginary parts of QDCT coefficients, respectively. Then, additional Markov features ar
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Singh H.R, Sharma Rahul, Sahgal Nitin, Sethi Poonam, Kushwah Rahul, and Kachhawa Pranav. "An Improved Method of Measurement of ECG Parameters for Online Medical Diagnosis." In Studies in Health Technology and Informatics. IOS Press, 2010. https://doi.org/10.3233/978-1-60750-565-5-40.

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The accuracy in the online measurement of ECG parameters has a decisive role in the better diagnosis and effective treatment of the diseases. The present paper describes a Lab-VIEW based programming using Pan Tompkins method to extract out QRS complex whereas QT interval measurements were carried out using Mat-lab based math-script module. Hilbert transform has been applied on the ECG signal to convert it into an analytical signal for better peak detection. Peak detection and other parameters like RR interval, HR and several time domain measures of heart rate variability such as RR mean and st
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Nandhini Devi R, Leones Sherwin VimalrajS, and Lydia J. "Improvement of Multipath Channel Performance for Optical MIMO-OFDM in LED Modulation with Fully Generalized Spatial-Frequency." In Advances in Parallel Computing. IOS Press, 2021. http://dx.doi.org/10.3233/apc210085.

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This paper suggests a scheme to generalize the idea of LED index modulation concept by using the spatial multiplexing principle to relay complex OFDM signals through various channels such as AWGN, Rayleigh and Rician by splitting these signals into their real-imaginary and positive-negative components. In order to combat ISI as well as to increase the channel capacity. The MIMO-OFDM efficiency analysis, taking into account the constraint of the forward current of the LED is extracted. The accuracy of the theoretical results is verified by comparing the Bit Error Ratio (BER) reduction and impro
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Mirroshandel Seyed Abolghasem and Ghassem-Sani Gholamreza. "Temporal Relations Learning with a Bootstrapped Cross-document Classifier." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2010. https://doi.org/10.3233/978-1-60750-606-5-829.

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The ability to accurately classify temporal relation between events is an important task for a large number of natural language processing applications such as Question Answering (QA), Summarization, and Information Extraction. This paper presents a weakly-supervised machine learning approach for classification of temporal relation between events. In the first stage, the algorithm learns a general classifier from an annotated corpus. Then, it applies the hypothesis of &amp;ldquo;one type of temporal relation per discourse&amp;rdquo; and expands the scope of &amp;ldquo;discourse&amp;rdquo; from
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Kartik Kumar, Sarwareddy, and Manda Venkata Sasidhar. "From Fluids to Forecasts: The Promise of Small Extracellular Vesicle miRNAs in Revolutionising Cancer Diagnostics." In Beyond the Blueprint - Decoding the Elegance of Gene Expression [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005059.

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Small extracellular vesicle (sEV) RNAs, particularly microRNAs (miRNAs), have emerged as pivotal biomarkers for cancer diagnosis and prognosis. Encapsulated within sEVs, these miRNAs reflect specific cellular characteristics and disease states, offering a window into cancers’ molecular underpinnings. Notably, miRNAs, such as miR-7977, miR-98-3p, miR-620, and miR-17-5p in lung cancer and miR-373, miR-1246, miR-223-3p, and miR-21 in breast cancer, have been identified in sEVs extracted from various bodily fluids, including blood, urine, and saliva. Their remarkable stability and ease of isolatio
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Mendes, David, Irene Pimenta Rodrigues, and Carlos Fernandes Baeta. "Clinical Practice Ontology Automatic Learning from SOAP Reports." In Healthcare Ethics and Training. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2237-9.ch028.

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We show how we implemented an end-to-end process to automatically develop a clinical practice knowledge base acquiring from SOAP notes. With our contribution we intend to overcome the “Knowledge Acquisition Bottleneck” problem by jump-starting the knowledge gathering from the most widely available source of clinical information that are natural language reports. We present the different phases of our process to populate automatically a proposed ontology with clinical assertions extracted from daily routine SOAP notes. The enriched ontology becomes a reasoning able knowledge base that depicts a
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Mendes, David, Irene Pimenta Rodrigues, and Carlos Fernandes Baeta. "Clinical Practice Ontology Automatic Learning from SOAP Reports." In Handbook of Research on Trends in the Diagnosis and Treatment of Chronic Conditions. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-8828-5.ch016.

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We show how we implemented an end-to-end process to automatically develop a clinical practice knowledge base acquiring from SOAP notes. With our contribution we intend to overcome the “Knowledge Acquisition Bottleneck” problem by jump-starting the knowledge gathering from the most widely available source of clinical information that are natural language reports. We present the different phases of our process to populate automatically a proposed ontology with clinical assertions extracted from daily routine SOAP notes. The enriched ontology becomes a reasoning able knowledge base that depicts a
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Priyadarshi, Gautam, Sagar Prajapati, and Mrugesh Trivedi. "Tools and Techniques to Analyse Microplastic Pollution in Aquatic and Terrestrial Ecosystems." In Microplastic Pollution: Causes, Effects and Control. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815165104123010004.

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The estimation of microplastic pollution in the terrestrial and aquatic ecosystem is carried out by quantification and identification of the contaminated environment. Microplastic estimation consists of various steps such as sampling, visualization and quantification. Generally, the planktonic net, bongo net, manta net, and neuston net have been used for water sampling. While, grab samplers, tweezers, tablespoons, trowels, shovels, spatulas, or hand picking methods have been used for soil and sediment sampling. The biological sample from the study sites comprises the direct collection of the w
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Conference papers on the topic "Qat Extracts"

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Mills, George, Bob Bell, and E. Lynn Shirey. "The Characterization of Coatings Utilizing Thermal Extract Ion/Gas Chromatography Followed by Fourier Transform Infrared Spectroscopy and/or Mass Spectrometry." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94440.

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Abstract The characterization of coatings utilizing thermal extraction/gas chromatography followed by fourier transform infrared spectroscopy and/or mass spectrometry is a very powerful hyphenated technique capable of providing definitive answers to questions of QA/QC during the development of a paint formulation, during its manufacture, during its application, or during its investigation after a coating failure. Small recovered paint chips reveal a portion of their past history. Positive identification of generic binder types, solvent entrapment, unreacted monomer, and improper catalyzation a
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Leutwyler, Zachary, Emil Leutwyler, and Neal Estep. "AOV Quarter-Turn Efficiency Models and Validation." In ASME/NRC 2014 12th Valves, Pumps, and Inservice Testing Symposium. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/nrc2014-5031.

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Common quarter-turn (QT) mechanisms used in nuclear plant air-operated valves (AOVs) include scotch yoke, lever, and link-and-lever mechanisms coupled to diaphragms and pistons. QT mechanism efficiency varies as a function of valve position and is a critical design input used to determine AOV margin. Because of the lack of publicly available data of a quality commensurate with “nuclear QA [quality assurance],” Kalsi Engineering, Inc. (KEI), initiated an independent QT-mechanism efficiency test program that includes a number of commonly used actuator manufacturers, models, and sizes based on a
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Van Haarlem, L. J. M., H. C. Hemker, B. A. M. Soute, and C. Vermeer. "GLA-CONTAINING PROTEINS FROM CALCIFIED HUMAN ATHEROSCLEROTIC PLAQUES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643747.

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Vitamin K-dependent carboxylase activity has been detected in human andbovine vessel wall. Studies comparingthe carboxylases from liver and vessel wall revealed that the enzyme systems may be regarded as isoenzymes withwidely different substrate specificities. The carboxylated product of vessel wall carboxylase has not yet been identified, but it seems plausible that it will be found amongst the Gla-containing proteins which are abundantly present in calcified atherosclerotic plaques (Gla= gammacarboxyglutamicacid, the abnormal amino acid formed by vitamin K-dependent carboxylase). Therefore w
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Osama, Mayar, and Mervat Abu Elkheir. "Can Incremental Learning help with KG Completion?" In 13th International Conference on Computer Science, Engineering and Applications (CCSEA 2023). Academy and Industry Research Collaboration Center (AIRCC), 2023. http://dx.doi.org/10.5121/csit.2023.130510.

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Knowledge Graphs (KGs) are a type of knowledge representation that gained a lot of attention due to their ability to store information in a structured format. This structure representation makes KGs naturally suited for search engines and NLP tasks like question-answering (QA) and task-oriented systems; however, KGs are hard to construct. While QA datasets are more available and easier to construct, they lack structural representation. This availability of QA datasets made them a rich resource for machine learning models, but these models benefit from the implicit structure in such datasets. W
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Gabriela A, García-Robledo, Reyes-Ortiz José A, González-Beltrán Beatriz A, and Bravo Maricela. "Ontology-Based Question Answering System for an Academic Domain." In 2nd International Conference on NLP Techniques and Applications (NLPTA 2021). Academy and Industry Research Collaboration Center (AIRCC), 2021. http://dx.doi.org/10.5121/csit.2021.111902.

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The development of question answering (QA) systems involves methods and techniques from the areas of Information Extraction (EI), Natural Language Processing (NLP), and sometimes speech recognition. A user interface that involves all these tasks requires deep development to improve the interaction between a user and a device. This paper describes a Spanish QA system for an academic domain through a multi-platform user interface. The system uses a voice query to be transformed into text. The semi-structured query is converted into SQWRL language to extract a system of ontologies from an academi
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Marquardt, Drew, and Stuart Castillo. "Determination of oxidation stability and shelf life of cannabis formulations." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/togo4822.

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The characterization of cannabis extract in an industrial setting is required for both quality assurance (QA), quality control (QC) and antioxidant research and development (R&amp;D) purposes. More importantly, having a rapid and straightforward streamlined process is essential for the daily operational success of any R&amp;D department. Using physical techniques such as polarimetry, refractometry, and densitometry, the physical properties of three cannabis extract compositions in carrier oils were characterized and examined: pure Tetrahydrocannabinol (THC), Cannabidiol (CBD), and a THC/CBD mi
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Lancetti, Wagner, Vinícius da Fonseca Vieira, Kelly Rosa Braghetto, and Vinicius H. S. Durelli. "TalentJobRadar: Advanced Data-Driven Recommendations for In-Demand QA Soft Skills and Career Opportunities." In Simpósio Brasileiro de Sistemas de Informação. Sociedade Brasileira de Computação, 2025. https://doi.org/10.5753/sbsi.2025.246484.

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Introduction: Software Quality Assurance (QA) is essential to ensure that software products meet predefined requirements. While QA tasks are technical, soft skills play a crucial role in project success, product quality, and the productivity of QA professionals. Objectives: The main objective of this work is to provide a job and skill recommendation tool focused on the Brazilian QA market. Methods: Data was extracted from 2,164 LinkedIn job postings using a data-driven, inductive approach, combining both manual and automated processes. Job descriptions and users’ skills were mapped into binary
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Gupta, Mansi, Nitish Kulkarni, Raghuveer Chanda, Anirudha Rayasam, and Zachary C. Lipton. "AmazonQA: A Review-Based Question Answering Task." In Twenty-Eighth International Joint Conference on Artificial Intelligence {IJCAI-19}. International Joint Conferences on Artificial Intelligence Organization, 2019. http://dx.doi.org/10.24963/ijcai.2019/694.

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Every day, thousands of customers post questions on Amazon product pages. After some time, if they are fortunate, a knowledgeable customer might answer their question. Observing that many questions can be answered based upon the available product reviews, we propose the task of review-based QA. Given a corpus of reviews and a question, the QA system synthesizes an answer. To this end, we introduce a new dataset and propose a method that combines informational retrieval techniques for selecting relevant reviews (given a question) and "reading comprehension" models for synthesizing an answer (gi
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Kratzenberg, M. G., H. G. Beyer, S. Colle, et al. "Assessment of the Partial Model Stability of the Quasi-Dynamic Collector Test Under Outdoor Conditions EN 12975 by the Application of Uncertainty Analysis." In ASME 2005 International Solar Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/isec2005-76042.

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Outdoor collector tests are inherently performed under variable weather conditions. Whereas ISO 9806 sets strong restrictions for the conditions of usable data sets for the steady-state collector test SST, EN12975 allows more variable ambient conditions for the quasi-dynamic collector test QDT. This results in shorter collector test times, but could have drawbacks for the uncertainties including the reproducibility of the test results, i.e. the parameters of the collector model. As the weather conditions are never the same within several tests, outdoor collector tests are not repeatable only r
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Song, Jingkuan, Pengpeng Zeng, Lianli Gao, and Heng Tao Shen. "From Pixels to Objects: Cubic Visual Attention for Visual Question Answering." In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/126.

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Recently, attention-based Visual Question Answering (VQA) has achieved great success by utilizing question to selectively target different visual areas that are related to the answer. Existing visual attention models are generally planar, i.e., different channels of the last conv-layer feature map of an image share the same weight. This conflicts with the attention mechanism because CNN features are naturally spatial and channel-wise. Also, visual attention models are usually conducted on pixel-level, which may cause region discontinuous problem. In this paper we propose a Cubic Visual Attenti
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Reports on the topic "Qat Extracts"

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Mcgregor-Lowndes, Myles, Marie Balczun, and Alexandra Williamson. Tax-Deductible Giving in 2022-23: ACPNS Current Issues Information Sheet 2025/1. The Australian Centre for Philanthropy and Nonprofit Studies, QUT, 2025. https://doi.org/10.5204/rep.eprints.258641.

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Each year The Australian Centre for Philanthropy and Nonprofit Studies (ACPNS) at QUT analyses statistics on donations to Deductible Gift Recipients (DGRs), made by Australian individual taxpayers and claimed as deductions in their income tax returns. The information presented below is based on the amount and type of tax-deductible donations made to DGRs and claimed by Australian taxpayers for the period 1 July 2022 to 30 June 2023 extracted from the Australian Taxation Office's (ATO) publication Taxation Statistics 2022–23
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