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Journal articles on the topic 'Extractions'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Tabakaev, Anton, Oksana Tabakaeva, and Yuriy Prikhodko. "Mathematical Modeling of Carotenoid Extraction from Brown Algae S.Miyabei." Food Industry 7, no. 3 (2022): 50–58. http://dx.doi.org/10.29141/2500-1922-2022-7-3-6.

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The thesis concerns the conditions optimization for extracting carotenoids and fucoxanthin from brown algae S. miyabei by the math modelling method. The authors studied the influence of the following parameters: the raw materials ratio – extractant, extractions multiplicity, process duration and temperature, grinding degree of raw materials. The multifactorial experiment revealed that the extraction multiplicity and time were the determining factors affecting the carotenoids and fucoxanthin yield. The regression analysis results, particularly R 2 , demonstrated that the obtained linear equatio

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Postal, Paul M. "Contrasting extraction types." Journal of Linguistics 30, no. 1 (1994): 159–86. http://dx.doi.org/10.1017/s0022226700016212.

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This paper grounds a novel typology yielding three major types of English (L(eft)-extraction, defined by their relation to resumptive pronouns (RPs): (1) B-extractions, which require RPs in their extraction sites, (2) A1-extractions, which allow RPs in their extraction sites, and (3) A2-extractions, which forbid RPs in their extraction sites. Type B is represented by topicalization; type A1 by most instances of question extraction. The A/B distinction is supported by correlations with restrictions on definite pronouns. A2-extractions, e.g. free relative extraction, are insensitive to such and

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Yang, Ling, and Cheng Zheng. "Optimization of the Technology of Extracting Dihydromyricetin from Ampelopsis by Orthogonal Experimental Design." Advanced Materials Research 550-553 (July 2012): 1709–14. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.1709.

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The optimum extracting condition of dihydromyricetin from ampelopsis was studied. The MAE conditions, such as the extraction solvent volume, extraction temperature, and the period of extraction, were all studied in the orthogonal test. The most suitable conditions for the extractions were showed as follows: the extracting temperature was 95°C,the extracting time was 15min,and the solid-liquid leaching ration was 1:20.

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Aarthi., R., Asman. A. Aaliyah, K. Aarthi., M. Aboorva., and Raja Kumar. P. Dr. "Extraction in Orthodontics – An Overview." Extraction in Orthodontics – An Overview 8, no. 11 (2023): 3. https://doi.org/10.5281/zenodo.10142644.

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Extraction for orthodontic treatment is not a new idea. John Hunter emphasized the use of extraction in orthodontics in his 1771 book Natural History of the Teeth. For many years, the extraction in orthodontics has been a subject of conflict. A significant number of extractions are done as part of a comprehensive treatment plan that involves the use of an appliance. The type of the malocclusion and the patient's age may be important factors in evaluating if extraction is required. To extract or not to extract has always been and will continue to be a source of debate in orthodontics. Teeth ext

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Vukic-Culafic, Branka, and Djordje Petrovic. "Possibility of determining relations between translatory movement and inclination of agonist teeth after extraction of first permanent molars." Medical review 67, suppl. 2 (2014): 61–65. http://dx.doi.org/10.2298/mpns14s2061v.

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Introduction. Tooth extractions, particularly of the permanent teeth, lead to different and numerous consequences. It is known that the incidence of caries and the incidence of premature extractions are the highest with the first permanent molars. The aims of this study were to examine the possibility of determining the relations between the translatory movement and the agonist teeth inclination depending on the time of the performed extraction, as well as on the temporal distance from the moment of extracting the first permanent molar to the moment of analyzing the changes. Material and Metho

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de Oliveira, Johnatt Allan Rocha, Paula de Paula Menezes Barbosa, and Gabriela Alves Macêdo. "High Concentrate Flavonoids Extract from Citrus Pomace Using Enzymatic and Deep Eutectic Solvents Extraction." Foods 11, no. 20 (2022): 3205. http://dx.doi.org/10.3390/foods11203205.

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This paper evaluated methodologies for extracting phenolic compounds by DES (Deep eutectic solvents) associated with pectinlyase. Citrus pomace was characterized chemically, and seven DESs were formulated for extraction. Two groups of extractions were performed. Group 1 extractions were performed only with DESs, at 40 °C and 60 °C, with CPWP (Citrus pomace with pectin) and CPNP (Citrus pomace no pectin). In group 2, the DES was associated with pectinlyase and used only with CPWP at 60 °C in two ways of extraction: E1S (one-step extraction) and E2E (2-step extraction). The extracts were evaluat

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Dukić, Josipa, Anet Režek Jambrak, Jurica Jurec, et al. "High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (Beta vulgaris L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis." Molecules 30, no. 4 (2025): 796. https://doi.org/10.3390/molecules30040796.

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To achieve sustainable extractions, this study examines the impact of different extraction methods to utilize waste from the sugar industry. In addition to conventional thermal extraction, the impact of high-power ultrasound (US) and high-voltage electrical discharge (HVED)-assisted extractions on the yield of bioactive compounds and the antioxidant capacity (AC) value of sugar beet leaf extracts was determined. US extraction proved to be an excellent method for extracting bioactive compounds, while HVED extraction proved to be an excellent method for extracting Vitexin. AC was measured both s

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Zhang, Xiaoqi, Paul L. Bishop, and Brian K. Kinkle. "Comparison of extraction methods for quantifying extracellular polymers in biofilms." Water Science and Technology 39, no. 7 (1999): 211–18. http://dx.doi.org/10.2166/wst.1999.0361.

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Five commonly used extraction methods - regular centrifugation, EDTA extraction, ultracentrifugation, steaming extraction and regular centrifugation with formaldehyde (RCF) - were selected to study their effectiveness and repeatability in extracting extracellular polymeric substances (EPS) from aerobic/sulfate reducing and nitrifying/denitrifying biofilm samples. Biofilm EPS extraction yields were represented by carbohydrate and protein concentrations; the amount of cell lysis during the extractions was indicated by DNA concentration. The results showed that analyzing wash waters is essential

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Dardengo, Camila de S., Luciana Q. P. Fernandes, and Jonas Capelli Júnior. "Frequency of orthodontic extraction." Dental Press Journal of Orthodontics 21, no. 1 (2016): 54–59. http://dx.doi.org/10.1590/2177-6709.21.1.054-059.oar.

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Introduction: The option of dental extraction for orthodontic purposes has been debated for more than 100 years, including periods when it was widely used in treatment, including the present, during which other methods are used to avoid dental extractions. The objective was to analyze the frequency of tooth extraction treatment performed between 1980 and 2011 at the Orthodontic Clinic of Universidade Estadual do Rio de Janeiro (UERJ). Material and Methods: The clinical records of 1484 patients undergoing orthodontic treatment were evaluated. The frequency of extractions was evaluated with rega

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Dunn, Jodie L., Johanna D. Turnbull, and Sharon A. Robinson. "Comparison of solvent regimes for the extraction of photosynthetic pigments from leaves of higher plants." Functional Plant Biology 31, no. 2 (2004): 195. http://dx.doi.org/10.1071/fp03162.

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The relative efficiency of methanol- and acetone-based solvents for the extraction of pigments from photosynthetic tissues of plant was compared, together with the advantages of multiple versus single extractions. The two commonly employed triple acetone extractions (100 : 80 : 80% and 85 : 100 : 100%) performed comparably for most pigments and for all plant species tested. Single extractions with either 96% methanol or 85% acetone failed to extract the more hydrophobic pigments, especially β-carotene. We conclude that multiple extractions that combine pure and aqueous (80–85%) acetone are pre

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Marchi, Giuliano, Luiz Roberto Guimarães Guilherme, Andrew C. Chang, and Clístenes Williams Araújo do Nascimento. "Heavy metals extractability in a soil amended with sewage sludge." Scientia Agricola 66, no. 5 (2009): 643–49. http://dx.doi.org/10.1590/s0103-90162009000500009.

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Few investigations have been carried out about the comparison of desorption rate and amount of heavy metals extracted successively by organic acid mixtures mimicking the rhizosphere and routine extractants in sewage sludge-amended soils. Extractions of Zn, Cd, Ni, Cr, and Cu were performed in samples of a sewage sludge-amended soil using seven extractants: four organic acid mixtures and three routine extractants (DTPA, Mehlich-I, and ammonium acetate). Results from single pass extractions, in which the extractable metal contents were determined by simply extracting the soil a single time, as w

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Chenchev, Lyubomir I., Vasilena V. Ivanova, Ivan L. Chenchev, and Hristo I. Daskalov. "Minimally invasive extractions with physics forceps – clinical evaluation and comparison." Folia Medica 66, no. 2 (2024): 235–42. http://dx.doi.org/10.3897/folmed.66.e122678.

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Introduction: Tooth extraction is still one of the most common dental procedures, routinely performed for a variety of reasons. Tooth extraction forceps and elevators are well-known extraction instruments which have been the standard in tooth extraction procedures for well over a hundred years. Physics forceps are one possible alternative, aiming to perform less traumatic and more predictable extractions. Aim: The aim of study was to compare the effectiveness of physics forceps as an alternative, less traumatic, tool to the conventional extraction forceps. Materials and methods: All patients i

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Hamasha, Abed Al-Hadi, Mansour Ali Al Qudah, Anwar Barakat Bataineh, and Rima Ahmad Safadi. "Reasons for Third Molar Teeth Extraction in Jordanian Adults." Journal of Contemporary Dental Practice 7, no. 5 (2006): 88–95. http://dx.doi.org/10.5005/jcdp-7-5-88.

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Abstract Aims To assess reasons for third molar teeth extractions in a sample of Jordanian dental patients and to evaluate the association of extractions with other independent variables. Methods and Materials The study sample was comprised of dental patients in North Jordan who had third molar extractions. Data were collected from 36 dentists who were instructed to administer questionnaires to their adult patients undergoing third molar extractions and then to record the primary reason for those extractions. The data in this study was analyzed using a descriptive summary and chi square statis

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Santarelli, Veronica, Lilia Neri, Katya Carbone, Valentina Macchioni, and Paola Pittia. "Use of Conventional and Innovative Technologies for the Production of Food Grade Hop Extracts: Focus on Bioactive Compounds and Antioxidant Activity." Plants 11, no. 1 (2021): 41. http://dx.doi.org/10.3390/plants11010041.

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This study investigated the use of conventional and innovative extraction methods to produce food-grade hop extracts with high antioxidant capacity and content in bioactive compounds. Conventional extractions (CONV) were performed under dynamic maceration at 25 and 60 °C; innovative extractions were performed using two ultrasound systems, a laboratory bath (US) and a high-power ultrasound bath (HPUS), and a high-pressure industrial process. For CONV, US, and HPUS extractions the effect of the extraction time was also tested. Experimental results showed that extraction method, temperature, and

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Cahen, P. M., R. M. Frank, and J. C. Turlot. "A Survey of the Reasons for Dental Extractions in France." Journal of Dental Research 64, no. 8 (1985): 1087–93. http://dx.doi.org/10.1177/00220345850640081401.

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3516 French dentists, selected at random, were asked to record every tooth they extracted during January, 1984. They were also asked to give the reason for extraction in each case. These were assigned to eight groups: caries, periodontal diseases, eruption problems, prosthetics, trauma, orthodontics, occlusal problems, and other reasons. Data were received from 910 dentists (25.3%) relating to a total of 14,621 extractions. Overall, caries was the most frequent cause for extraction (49%), followed by periodontal diseases (32.4%) and orthodontics (8.4%). In the age group under 50, dental caries

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Dimitrov, Mauricio R., Annelies J. Veraart, Mattias de Hollander, Hauke Smidt, Johannes A. van Veen, and Eiko E. Kuramae. "Successive DNA extractions improve characterization of soil microbial communities." PeerJ 5 (February 1, 2017): e2915. http://dx.doi.org/10.7717/peerj.2915.

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Currently, characterization of soil microbial communities relies heavily on the use of molecular approaches. Independently of the approach used, soil DNA extraction is a crucial step, and success of downstream procedures will depend on how well DNA extraction was performed. Often, studies describing and comparing soil microbial communities are based on a single DNA extraction, which may not lead to a representative recovery of DNA from all organisms present in the soil. The use of successive DNA extractions might improve soil microbial characterization, but the benefit of this approach has onl

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Olivares, Ignacio, Viviana Aróstica, Augusto Estay, Rodrigo Quitral, and Ignacio Sanino. "Association between hyperglycemia and post-exodontia complications in patients with Type II Diabetes Mellitus: A Scoping Review." Journal of Oral Research 13, no. 1 (2024): 75–89. http://dx.doi.org/10.17126/joralres.2024.007.

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Introduction: Diabetes mellitus (DM) is a prevalent chronic metabolic disorder worldwide, with Type II DM (T2DM) emerging as the most widespread variant. In Chile, approximately 11% of adults aged 20 to 79 suffer from this condition. Given its high prevalence, dental surgeons should be trained to evaluate risk factors, particularly the potential complications linked to tooth extraction in individuals with T2DM. Objetive: To describe the available scientific evidence on post-exodontia complications associated with hyperglycemia in patients with Type II diabetes mellitus. Materials and Methods:

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Alluru, Deepika, Chandrasekhar Lingamallu, Venkata Subhash Andey, and Venkata Durga Prasad Venkumahanti. "Pattern and causes of tooth extraction in patients reporting to GVPIHC and MT, Visakhapatnam, Andhra Pradesh." International Journal of Scientific Reports 8, no. 3 (2022): 74. http://dx.doi.org/10.18203/issn.2454-2156.intjscirep20220374.

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<p><strong>Background:</strong> Teeth help us in masticatory function, phonetics and aesthetics. Loss of teeth may affect quality of life and has significant socioeconomic, psychological consequences. Its important to analyse the reasons and patterns of tooth loss to know their impact on the remaining dentition and oral health. Thus, the present study was designed to understand the pattern and causes of tooth extraction in a targeted population. <strong></strong></p><p><strong>Methods:</strong> This retrospective study analysed 972 records

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Rostaman, Tia, L. Anggria, and A. Kasno. "CALIBRATION OF SOIL NUTRIENT MEASUREMENTS WITH MULTIPLE EXTRACTIONS USING INDUCTIVELY COUPLED PLASMA (ICP)." Agric 34, no. 2 (2022): 183–96. http://dx.doi.org/10.24246/agric.2022.v34.i2.p183-196.

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Inductively Coupled Plasma (ICP) instrument is a tool used to measure nutrients in the soil, plants, fertilizers, and water, good measurement requires a specific extraction. This study was conducted from March to November 2013 at the Soil Testing and Research Laboratory, Indonesian Soil Research Institute. The soils were collected from the Banten, West Java, and Central Java. The experiment was carried out by the statistical method of two means. The soil used was 100 g of wind-dried soil, which was analyzed by extracting Morgan Venema, Wet Ashing HNO3 and HClO4, Morgan Wolf. The observation wa

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Brunello, Giulia, Marleen De Biagi, Giulia Crepaldi, Fernanda Izaura Rodrigues, and Stefano Sivolella. "An Observational Cohort Study on Delayed-Onset Infections after Mandibular Third-Molar Extractions." International Journal of Dentistry 2017 (2017): 1–5. http://dx.doi.org/10.1155/2017/1435348.

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Objectives. The purpose of the present study was to investigate the occurrence and clinical features of delayed-onset infections after mandibular third-molar extractions. Method and Materials. An observational cohort study was conducted on 179 patients undergoing mandibular third-molar extraction between January 2013 and December 2015, for a total of 217 extractions. Data were recorded at the time of extraction (T0), on suture removal seven days later (T1), and 30 days after the extraction, when patients were contacted and asked about their healing process (T2). The statistical analysis was pe

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Chenchev, Lyubomir, Vasilena Ivanova, Krikor Giragosyan, Tasho Gavrailov, and Ivan Chenchev. "Minimally Invasive Extraction System Benex—Clinical Evaluation and Comparison." Dentistry Journal 12, no. 8 (2024): 234. http://dx.doi.org/10.3390/dj12080234.

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Tooth extraction is one of the oldest and most well-known surgical procedures in dental medicine. It is still routinely performed by general practitioners and dental undergraduates. The Benex extraction system allows for the extraction of teeth in a vertical direction, which avoids most trauma against surrounding alveolar bone and soft tissues. The study included 56 patients who were recruited from the Department of Oral Surgery, Medical University—Plovdiv. The patients were split into two groups of 28 patients—Group I (control group) and Group II (study group). For each group, the success of

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Rukiah, Bunga Ayub, Amalia Oeripto, and Nurhayati Harahap. "A Comparison of class I malocclusion treatment outcomes with and without extractions using an ABO grading system for dental casts and radiographs." Dental Journal (Majalah Kedokteran Gigi) 50, no. 3 (2018): 144. http://dx.doi.org/10.20473/j.djmkg.v50.i3.p144-148.

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Background: Class I malocclusion can be treated with or without resort to extraction. However, despite the indications, a controversy is still ongoing as to whether one option is preferable to another. One of the most frequent controversies centers on whether treatment involving extractions will produce superior results than treatment not culminating in extraction. Purpose: This study aimed to compare the results of treating class I malocclusion with extractions and those without extraction using an ABO grading system. Methods: Comparing ABO scores in patients’ dental casts and radiographs wit

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Demir, Pınar, Hatice Aydoğdu, and Şaziye SarI. "Knowledge, Attitude and Clinical Practice of Dentists about Extraction of First Permanent Molars." Journal of Clinical Pediatric Dentistry 46, no. 1 (2022): 12–19. http://dx.doi.org/10.17796/1053-4625-46.1.3.

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Purpose: The extraction of permanent first molar (PFM) teeth with poor prognosis allows the build of a new-and-ideal occlusion with the spontaneous movement of the healthy second and third molars by taking advantage of the patient’s development. This study aimed to evaluate dentists’ knowledge level about controlled tooth extractions and determine their information needs. Study design: The survey, consisting of 9 questions about balance and compensation extractions, was prepared on Google Forms and sent via email to dentists. Results: The questionnaire was sent to 3137 dentists and 472 (15.04%

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Yue Yi, Elaine Kueh, Annabelle Lai Siew Ying, Mandakini Mohan, and Rohit Kunnath Menon. "Prevalence of Postoperative Infection after Tooth Extraction: A Retrospective Study." International Journal of Dentistry 2021 (June 8, 2021): 1–6. http://dx.doi.org/10.1155/2021/6664311.

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The aim of the study was to identify the postoperative infection rates after tooth extraction in a university dental clinic and to identify the factors associated with an increased risk for postoperative infection. A retrospective study of case records of patients who underwent tooth extractions at the International Medical University’s Oral Health Centre (IMU-OHC) over a span of 6 years was conducted. Data on demography, patient-related factors, and treatment-related factors were extracted from the case records. A binary logistic regression analysis was performed to assess the odds ratio of a

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Cho, In-Ho, Eberhard Hohaus, Axel Lehnen, and Harro Lentz. "Extraktionen von Ginsenosiden aus Ginseng-Wurzeln mit flüssigem Ammoniak, Methanol-Wasser oder Wasser/ Extractions of Ginsenosidesj from Ginseng Roots with Liquid Ammonia, Methanol-Water or Water." Zeitschrift für Naturforschung B 55, no. 3-4 (2000): 326–32. http://dx.doi.org/10.1515/znb-2000-3-415.

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Abstract Extractions of ginsenosides from ginseng roots with liquid ammonia, methanol/water (60:40; v/v) or water were carried out. The extracts have been analyzed qualitatively and quantitatively to valuate yield and selectivity of extractions of ginsenosides. Water supplied the lowest yield. The yields of extracts with liquid ammonia were higher than those with m ethanol-water (60%). Yields of the ginsenosides Rb1, Rb2, Rc and Rd by extracting with liquid ammonia are about twice as much as those of the extraction with methanol-water (60%). It was proved by HPLC that malonyl-ginsenosides m -R

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Ballistreri, Gabriele, Margherita Amenta, Simona Fabroni, Nicolina Timpanaro, and Giusy Maria Platania. "Sustainable Extraction Protocols for the Recovery of Bioactive Compounds from By-Products of Pomegranate Fruit Processing." Foods 13, no. 12 (2024): 1793. http://dx.doi.org/10.3390/foods13121793.

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This study investigates sustainable extraction protocols for the recovery of bioactive compounds from by-products of various pomegranate (Punica granatum L.) cultivars, including Acco, Hicaz, Jolly Red, Parfianka, Valenciana, and Wonderful, generated during the industrial processing of the fruits. Advanced extraction technologies, including ultrasounds, microwaves, and hydrodynamic cavitation, have been compared to conventional extraction procedures and utilized to enhance extraction efficiency while also minimizing environmental impact. Water-based extraction methods have been utilized to pro

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Brown, Ron H., and Irene Mueller-harvey. "Evaluation of the Novel Soxflo Technique for Rapid Extraction of Crude Fat in Foods and Animal Feeds." Journal of AOAC INTERNATIONAL 82, no. 6 (1999): 1369–74. http://dx.doi.org/10.1093/jaoac/82.6.1369.

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Abstract The new Soxflo instrument was evaluated for the determination of crude fat in foods and animal feeds. Samples are packed into small columns and extracted with petroleum ether at room temperature. The Soxflo yielded accurate data from foods, ranging from 0.4 to 73.2% crude fat, compared with Soxhlet extractions and Certified Reference Materials, for which recoveries averaged 99.7 and 100.7%, respectively. Relative standard deviations (1.81 %) were approximately half those of Soxhlet extractions (3.68%). Regression analysis of the data suggested that there was no proportional bias. A sm

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Balermpas, Panagiotis, Janita E. van Timmeren, David J. Knierim, Matthias Guckenberger, and Ilja F. Ciernik. "Dental extraction, intensity-modulated radiotherapy of head and neck cancer, and osteoradionecrosis." Strahlentherapie und Onkologie 198, no. 3 (2022): 219–28. http://dx.doi.org/10.1007/s00066-021-01896-w.

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Abstract Objective To seek evidence for osteoradionecrosis (ORN) after dental extractions before or after intensity-modulated radiotherapy (IMRT) for head and neck cancer (HNC). Methods Medline/PubMed, Embase, and Cochrane Library were searched from 2000 until 2020. Articles on HNC patients treated with IMRT and dental extractions were analyzed by two independent reviewers. The risk ratios (RR) and odds ratios (OR) for ORN related to extractions were calculated using Fisher’s exact test. A one-sample proportion test was used to assess the proportion of pre- versus post-IMRT extractions. Forest

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Fatur, Karsten, Matjaž Ravnikar, Vitjan Fras, and Samo Kreft. "Pipes and Potions: Testing the Efficacy of European Folk Preparation Methods for Anticholinergic Solanaceae Plants." Plants 11, no. 1 (2022): 126. http://dx.doi.org/10.3390/plants11010126.

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The present article sought to evaluate the efficiency of various folk preparation methods commonly used in Europe for employing anticholinergic Solanaceae plants. The study aimed to uncover which folk methods were effective for the extraction of the anticholinergic tropane alkaloids of these plants, atropine and scopolamine. The folk extractions that were tested sought to simulate the preparation of teas, cold-water infusions, unguents, tinctures, fortified wines, and smoking. All preparation types and a control were then put through an extraction process to see what amount of the alkaloids ha

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Besançon, Clémence, Camille Chautard, Catherine Beaucaire, et al. "The Role of Barite in the Post-Mining Stabilization of Radium-226: A Modeling Contribution for Sequential Extractions." Minerals 10, no. 6 (2020): 497. http://dx.doi.org/10.3390/min10060497.

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Barite is ubiquitous and known to incorporate 226Ra through the formation of a solid-solution. In U mining mill tailings, barite is one of the dominant sulfate-binding minerals. In such environments, sequential extractions are generally used to identify the U- and 226Ra-binding phases and their associated reactivity. To better decipher the main processes governing the behavior of 226Ra during such sequential extractions, a geochemical model was developed with PHREEQC mimicking the sequential extraction of U and 226Ra from Bois-Noirs Limouzat U mine tailings, France. The model results were comp

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Manya Suresh, Dhanraj Ganapathy, and Nivethigaa B. "Prevalence of full mouth extraction among patients visiting a dental college - A retrospective analysis." International Journal of Research in Pharmaceutical Sciences 11, SPL4 (2020): 660–64. http://dx.doi.org/10.26452/ijrps.v11ispl4.4014.

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Extraction of teeth is one of the most common procedures carried out in dental clinics. This study was done to assess the prevalence of full mouth extraction among patients visiting a dental college. A review of the records of patients who had undergone tooth extraction in Saveetha Dental College between June 2019 to March 2020 was retrieved. Data was then analyzed for patients who had undergone full mouth extractions. Data was cross-tabulated based on gender. A total of 4539 patients had undergone extractions. Most of the patients were above the age of 40. There was a slightly higher predilec

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Stanke, Kayla L., Ryan J. Larsen, Laurie Rund, Brian J. Leyshon, Allison Y. Louie, and Andrew J. Steelman. "Automated identification of piglet brain tissue from MRI images using Region-based Convolutional Neural Networks." PLOS ONE 18, no. 5 (2023): e0284951. http://dx.doi.org/10.1371/journal.pone.0284951.

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Magnetic resonance imaging is an important tool for characterizing volumetric changes of the piglet brain during development. Typically, an early step of an imaging analysis pipeline is brain extraction, or skull stripping. Brain extractions are usually performed manually; however, this approach is time-intensive and can lead to variation between brain extractions when multiple raters are used. Automated brain extractions are important for reducing the time required for analyses and improving the uniformity of the extractions. Here we demonstrate the use of Mask R-CNN, a Region-based Convoluti

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Bernal-Sánchez, Karla Karen, Edith Lara-Carrillo, Ulises Velázquez-Enriquez, et al. "Clinical and socio-demographic factors associated with dental extractions in a clinical sample." Brazilian Dental Journal 34, no. 6 (2023): 121–29. http://dx.doi.org/10.1590/0103-6440202305355.

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Abstract The objective of the present study was to identify the reasons for dental extractions in patients seeking dental care in a university dental clinic in Mexico. This is a cross-sectional study that assessed 284 consecutive patients at the School of Dentistry, Autonomous University of the State of Mexico between August 2017 and November 2018. In total, 505 extractions were performed. The dependent variable was the reason for extraction: 0) dental caries and ensuing sequels (reference category); 1) periodontal disease and ensuing sequels; and 2) other reasons. Sociodemographic, socioecono

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Gao, Kun Yang, Xiao Feng Huang, Yong Yang, et al. "Advances on the Extraction and Separation Technologies in Tea Aroma Components Research." Advanced Materials Research 301-303 (July 2011): 421–25. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.421.

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Study on the tea aroma components is greatly significant, which are important factors in tea quality valuation.In recent years, nine main methods are under consideration：simultaneous distillation and solvent extraction, vacuum distillation extraction, steam distillation under reduced pressure, headspace analysis, solid-phase micro-extractions, headspace solid-phase micro-extractions, tea liquid absorption, supercritical fluid extraction and electronic nose. Meanwhile, advantages and disadvantages of each method were analyzed, in order to conduct technological guidance on the extraction and sep

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Wang, Jin, Yong-Ming Zhao, Ya-Ting Tian, Chun-Lin Yan, and Chun-Yan Guo. "Ultrasound-Assisted Extraction of Total Phenolic Compounds fromInula helenium." Scientific World Journal 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/157527.

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Ultrasound-assisted extraction (UAE) of phenolic compounds fromInula heleniumwas studied. Effects of ethanol concentration, ultrasonic time, solid-liquid ratio, and number of extractions were investigated. An orthogonal array was constructed to optimize UAE process. The optimized extraction conditions were as follows: ethanol concentration, 30%; solid-liquid ratio, 1 : 20; number of extractions, 2 times; extraction time, 30 min. Under the optimal conditions, the yield of total phenolic compounds and chlorogenic acid was6.13±0.58and1.32±0.17 mg/g, respectively. The results showed that high amou

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Dhillon, S. K., and K. S. Dhillon. "Pools of selenium in some Indian soils at field capacity and submerged moisture regimes." Soil Research 42, no. 2 (2004): 247. http://dx.doi.org/10.1071/sr03002.

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Pools of soil selenium (Se) as influenced by moisture regimes were investigated in some normal and seleniferous (which produce vegetation containing >5 mg Se/kg—the maximum permissible level for animal consumption) soils of India. Soil samples were equilibrated with 75Se by subjecting to alternate wetting and drying cycles and incubated at field capacity and submerged moisture regimes. Each soil sample was subjected to either single extraction with 0.25 M KCl, 0.1 M KH2PO4, and 4 M HCl in a sequence or 7 extractions with KCl followed by 7 extractions with KH2PO4 and 2 with HCl. Amount of 75

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Alluru, Deepika, Venkata Subhash Andey, Chandrasekhar Lingamallu, and Sindhoori Patnam. "Age and gender distribution of patients undergoing teeth extraction: a retrospective study in a tertiary health care centre." International Journal of Research in Medical Sciences 10, no. 3 (2022): 614. http://dx.doi.org/10.18203/2320-6012.ijrms20220388.

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Background: Tooth extraction remains a major commonly performed procedure in developing countries. Tooth loss affects mastication, speech, aesthetics and impairs the quality of life. The number of extracted teeth can serve as an indicator for socioeconomic status or oral hygiene level. It is essential to provide awareness regarding oral hygiene maintenance and early detection of dental problems to minimise extractions. The aim of the study was to investigate the age and gender distribution of patients undergoing extraction of teeth at GVPIHC and MT, Visakhapatnam, Andhra Pradesh.Methods: In th

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Benassi, Laura, Ivano Alessandri, and Irene Vassalini. "Assessing Green Methods for Pectin Extraction from Waste Orange Peels." Molecules 26, no. 6 (2021): 1766. http://dx.doi.org/10.3390/molecules26061766.

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In this work, we assess three different methods for the extraction of pectin from waste orange peels, using water as extracting solvent. “Hot-water”, Rapid Solid Liquid Dynamic (RSLD) and microwave-assisted extractions have been compared and evaluated in terms of amount and quality of extracted pectin, as well as embodied energy. This analysis provides useful guidelines for pectin production from food waste according to green procedures, enabling the identification of acidic “hot-water” as the most sustainable extraction route.

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Adeyemo, Wasiu Lanre, Akinola Ladipo Ladeinde, and Mobolanle Olugbemiga Oguniewe. "Influence of Trans-operative Complications on Socket Healing Following Dental Extractions." Journal of Contemporary Dental Practice 8, no. 1 (2007): 52–59. http://dx.doi.org/10.5005/jcdp-8-1-52.

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Abstract Aim Extraction healing complications have been attributed to several factors. The influence of trans-operative complications on an extraction site wound healing was the focus of this investigation. Methods and Materials This prospective study was conducted at the Oral Surgery Clinic of the Department of Oral and Maxillofacial Surgery of the Lagos University Teaching Hospital (LUTH) in Nigeria . Subjects selected were those referred for one or two adjacent extractions and who satisfied the inclusion criteria for the study. The relevant pre-operative information recorded for each patien

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Ecker, A. Joseph. "Extractions." American Journal of Orthodontics and Dentofacial Orthopedics 124, no. 5 (2003): A18—A19. http://dx.doi.org/10.1016/j.ajodo.2003.09.018.

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Moscaliuc, Mihaela. "Extractions." Ploughshares 49, no. 1 (2023): 126–35. http://dx.doi.org/10.1353/plo.2023.0011.

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Husna, N. E., E. Noor, F. Fahma, and T. C. Sunarti. "Optimization of ultrasound-assisted extraction of amla (Emblica officinalis) fruit using response surface methodology and identification of phenolic compounds." Food Research 8, no. 6 (2024): 257–70. https://doi.org/10.26656/fr.2017.8(6).589.

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Amla (Emblica officinalis) fruit is rich in phenolic compounds and has antioxidant activity which is beneficial to health. The phenolic compounds of amla fruit were extracted using ultrasound-assisted extraction (UAE) method. This study aimed to optimize the extraction conditions (ethanol concentration: 48.8-91.2% and extraction time: 2.9-17.1 min) using response surface methodology to maximize the total phenolic content and antioxidant activity of amla fruit extract. Extractions at optimum conditions were compared with conventional extractions (maceration and reflux). In addition, this study

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Yagyuu, Takahiro, Mao Kawakami, Yoshihiro Ueyama, et al. "Risks of postextraction bleeding after receiving direct oral anticoagulants or warfarin: a retrospective cohort study." BMJ Open 7, no. 8 (2017): e015952. http://dx.doi.org/10.1136/bmjopen-2017-015952.

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ObjectiveThe effect of direct oral anticoagulants (DOACs) on the risk of bleeding after tooth extraction remains unclear. This study aimed to evaluate the incidence of postextraction bleeding among patients who received DOAC and vitamin K antagonists (VKAs), such as warfarin.DesignThis study was a retrospective cohort analysis. Incidence rates and propensity score-matched regression models were used to compare the risks of bleeding after tooth extractions involving DOACs and VKAs.SettingThe study took place in a single university hospital in Japan.ParticipantsBetween April 2013 and April 2015,

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Josely, Manga Ambassa Parfait, Lowe Nantchouang Jacqueline, and Bengondo Messanga Charles. "Prevalence of Dental Extractions in Orthodontic Treatment in Two Cities in Cameroon." Saudi Journal of Oral and Dental Research 10, no. 07 (2025): 286–92. https://doi.org/10.36348/sjodr.2025.v10i07.002.

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Dental extraction is a therapeutic act consisting of removing the tooth from its socket. In orthodontics, dental extraction, even healthy ones, holds an important place in the current therapeutic arsenal. However, it is a source of many controversies. As data related to orthodontic extractions are scarce in our context, we proposed to undertake this study whose objective was to determine the prevalence of dental extractions in orthodontic treatment. We carried out a cross-sectional and descriptive study over a period of 08 months in five dental clinics in the cities of Yaounde and Douala. Pati

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Patel, Krishna, Huw G. Jeremiah, and Andrew Barber. "Update on tooth notation, guidelines for extraction and a new technique for extractions: intra-oral dental marking." Dental Update 47, no. 11 (2020): 951–55. http://dx.doi.org/10.12968/denu.2020.47.11.951.

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Effective communication is required when referring patients for extractions and surgical procedures. There are multiple notation systems used for the identification of teeth, making communication for dental extractions challenging. The aim of this article is to provide an overview of the methods available to identify teeth and to propose a novel technique to identify erupted teeth for extraction. CPD/Clinical Relevance: Dental professionals should be aware of the importance of effective communication when identifying teeth planned for extraction and using a method that will minimize the chance

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Nagy, Júlia, and Tibor Veress. "Systematic Error for Extraction of Controlled Substances from Plant/Fungal Materials." Journal of Chromatographic Science 58, no. 10 (2020): 985–91. http://dx.doi.org/10.1093/chromsci/bmaa067.

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Abstract The aim of this work was to investigate the applicability of a mathematical model developed for the description of supercritical fluid extraction (SFE) of cannabinoids from marijuana and hashish for liquid extraction of other substances. The mentioned model is applicable for dynamic SFE whose implementation is analogous to liquid–solid extraction in quasi-counter current mode. According to this model, quasi-counter current liquid–solid extractions were designed by calculation of component transport constants for extractions of psilocin from hallucinogenic mushroom, mescaline from hall

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Gupta, Akshay. "To ease orthodontic extraction – A novel technique." Journal of Contemporary Orthodontics 6, no. 3 (2022): 143–45. http://dx.doi.org/10.18231/j.jco.2022.028.

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Atraumatic extractions are always the prerequisite for immaculate orthodontic results. Of all the extractions desired by the orthodontist, maxillary first premolar is challenging for the dentist / oral surgeon specifically because of its thin and slender roots with wide variations in its anatomy. Various methods for atraumatic premolar extraction and for preserving the buccal cortical plate have been suggested in the past like use of periotomes, physics forceps etc. Following is the suggested novel technique for atraumatic premolar extractions which can be performed with routine forceps withou

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Ponnada, Swaroopa Rani, Sharmila Kantheti, Chandrasekhar Gandikota, and Ranjit Manne. "Beyond the ARCH: Examining mandibular third molar movements in response to premolar and single incisor extractions in orthodontic practice." Journal of Contemporary Orthodontics 8, no. 2 (2024): 215–21. http://dx.doi.org/10.18231/j.jco.2024.031.

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Mandibular third molars have been the interest of the orthodontic professionals, not only because of their Position Eruptive pattern, also because of their possible role in the development of late incisor crowding. The impaction rate of the third molars (mandible &#62; maxilla) is high compared to any other teeth. The impaction incidence of M3s may be lower in patients with orthodontic premolar extraction due to mesial movement of the posterior teeth. In this study angular and positional changes of mandibular 3 molars will be evaluated with premolars as well as single incisor extraction.:

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Arguelles-Peña, Karina, José Arturo Olguín-Rojas, Andrés Antonio Acosta-Osorio, et al. "An Evaluation of the Equilibrium Properties in Hexane and Ethanol Extractive Systems for Moringa oleifera Seeds and Fatty Acid Profiles of the Extracts." Separations 8, no. 11 (2021): 217. http://dx.doi.org/10.3390/separations8110217.

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Until the present, oilseed extractions have been mainly performed using hexane: a toxic, non-sustainable solvent. Extraction methods using ethanol have recently been proposed and, to evaluate the suitability of ethanol as an alternative solvent, Moringa seeds with an oil content as high as 40% have been chosen to determine the equilibrium properties in solid–liquid ethanol extractions. The equilibrium constant (Keq) and the specific retained solution (M) of the extractive systems seeds–oil–hexane and seeds–oil–ethanol were determined and validated, following a counter-current multi-stage extra

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Koskela, Sanna J., Irja Ventä, Johanna Snäll, Hanna Välimaa, and Miika Toivari. "Risk factors for complications from challenging lower third molar extractions in tertiary hospital patients." Acta Odontologica Scandinavica 83 (December 18, 2024): 690–95. https://doi.org/10.2340/aos.v83.42464.

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Objective: Third molar extraction is a common procedure with occasional complications. This study aimed to determine the incidence and types of complications in challenging lower third molar extractions and to identify complication risk factors in tertiary hospital patients. Material and methods: A retrospective cohort study was conducted on 354 patients who underwent unilateral lower third molar extraction during a 2-year period in 2018–2019 at Helsinki University Hospital. The outcome was the presence of a complication, and patient-related and operation-related variables served as determinan

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