175 research outputs found
Scalelength of 30000 SDSS disc galaxies (Fathi+, 2010)
No full textDisc scalelength (h) for 30000 galaxies from the Sloan Digitized Sky Survey (SDSS) Data Release 7, in the r-band. Also included is the Asymmetry parameter for each galaxy. Virtual Observatory methods and tools were used to define, retrieve and analyze the images for this unprecedentedly large sample classified as spiral galaxies in the LEDA catalogue. These parameters are also available for all other SDSS bands (u,g,i,z), and they can be retrieved from the Author. An extensive discussion about the errors involved in the derived parameters can be found in Fathi et al. (2010MNRAS.406.1595F) and Fathi (2010ApJ...722L.120F) (1 data file)
Scalelength of 30000 SDSS disc galaxies (Fathi+, 2010)
No full textDisc scalelength (h) for 30000 galaxies from the Sloan Digitized Sky Survey (SDSS) Data Release 7, in the r-band. Also included is the Asymmetry parameter for each galaxy. Virtual Observatory methods and tools were used to define, retrieve and analyze the images for this unprecedentedly large sample classified as spiral galaxies in the LEDA catalogue. These parameters are also available for all other SDSS bands (u,g,i,z), and they can be retrieved from the Author. An extensive discussion about the errors involved in the derived parameters can be found in Fathi et al. (2010MNRAS.406.1595F) and Fathi (2010ApJ...722L.120F) (1 data file)
Drug-Induced Apnea in Children Admitted to Loghman Hakim Hospital, Tehran, Iran
No full textHow to Cite This Article: Gholami N,Alwasabi F, Farnaghi F. Drug-Induced Apnea in Children Admitted to Loghman Hakim Hospital, Tehran, Iran. Iran J Child Neurol. Summer 2017; 11(3):15-18.AbstractObjectiveEnvironmental hazards, including poisons, can cause irreparable effects and even be fatal for children. Poisoning in children is common and serious, but often is preventable and treatable. This study aimed to evaluate the prevalence of drugs and chemical toxicity leading to apnea. In addition, we detected type of drug that induced apnea among children.Materials & MethodsIn a retrospective cross-sectional study from Apr 2012 to Apr 2013, sampled data of all hospitalized drug-induced apnea children were collected through hospital records.ResultsThe most common cause of drug toxicity was methadone syrup (74%). The mortality rate was 3.1%; all of them due to methadone poisoning.ConclusionThere was a high prevalence of apnea and poisoning of methadone in children.Methadone poisoning should be considered in apnea. References1. Sheikh NA, Damodar G. Spectrum of Accidental Paediatric Poisoning at a Tertiary Care Centre in South India. Medico-Legal Update 2015;15(1):93-7.2. Vasanthan M, James S, Shuba S, Abhinayaa J, Sivaprakasam E. Clinical profile and outcome of poisoning in children admitted to a tertiary referral center in South India. Indian J Child Health 2015;2(4):1-5.3. Jepsen F, Ryan M. Poisoning in children. Current Paediatr 15(7):563-8.4. Sharif MR, Nouri S. Clinical Signs and Symptoms and Laboratory Findings of Methadone Poisoning in Children. Iran J Pediatr 2015;25(1):e176.5. Rudd RA, Aleshire N, Zibbell JE, Gladden RM. Increases in Drug and Opioid Overdose Deaths--United States, 2000-2014. MMWR Morbidity and Mortality Weekly Report 2016;64(50-51):1378-82.6. Hein H, Puschel K, Schaper A, Iwersen-Bergmann S. [Accidental ingestion of methadone by children and suggestions for better prevention]. Archiv fur Kriminologie 2016;237(1-2):38-46.7. Boutroy MJ. Drug-induced apnea. Biol Neonate 1994;65(3-4):252-7.8. Farnaghi F, Hassanian-Moghaddam H, Faghihi Langroodi T. Fatal Poisoning and its Related Factors among Children Admitted in Loghman Hospital, 1995 -2004. Pajoohandeh J 2009;13(6):529-35.9. Fariba Farnaghi, Narjes Jafari, Fatemeh-Fereshteh Mehregan. Methadone Poisoning among ChildrenReferred to Loghman-Hakim Hospital in 2009. Pajoohandeh J 2012;16(6):299-303.10. Saleem A, Ejaz MS, Arif F, Hanifa A, Habib MI. Factors leading to acute accidental poisoning in children. Quarterly Medical Channel 2015.11. Farnaghi F, Pournasir Z, Tehranchi S. Opioid Poisoning in Children: A Report of 90 Cases. J Pediatr Nephrol 2015;3(2):62-6
Synergistic development of an engineered biodegradable theranostic probe and lymph node organ-on-a-chip to study nanoparticle-lymphatic interactions
No full textThe lymphatic system plays a vital role in controlling immune response. Despite this, cancer often reshapes the lymphatic microenvironment and metastasizes into lymph nodes. Theranostic (therapeutic + diagnostic) nanoparticles have been used in a variety of applications, including the detection and treatment of cancer metastases in lymph nodes. However, accumulation in the liver remains a major concern with any nanoparticle-based intervention. We have developed biodegradable nanoparticles made of biliverdin, an endogenous fluorophore that results from the breakdown of hemoglobin. We demonstrated the degradation of biliverdin nanoparticles (BVNPs) in the presence of biliverdin reductase, as well as the use of BVNPs in photoacoustic imaging of sentinel lymph nodes. Fundamental studies on BVNPs demonstrated shifts in their spectral properties as a response to various stimuli, including pH changes, metal chelation, and UV irradiation. BVNPs loaded with doxorubicin (Dox-BVNPs) were used for treatment of triple-negative breast cancer. BVNPs were further modified via metal chelation for use as a magnetic resonance imaging contrast agent. Finally, hybrid biliverdin-silica particles were developed for use in fluorescence imaging in the near-infrared I and II windows. At the same time, microfluidic models were created to recapitulate the lymph node tissue microenvironment. We first developed a lymphatic vessel on-a-chip that achieved long-term culture of primary human lymphatic endothelial cells (HLECs) under gravity-driven flow. We then developed a lymphatic system on-a-chip, comprised of multiple units that each model the lymph node subscapsular sinus, high endothelial venules, and lymph nodules. This device allows for the exploration of transport of nanoparticles, cancer cells, and immune cells to and from lymph nodes.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-08-01The student, Parinaz Fathi, accepted the attached license on 2020-05-27 at 09:47.The student, Parinaz Fathi, submitted this Dissertation for approval on 2020-05-27 at 10:25.This Dissertation was approved for publication on 2020-06-17 at 15:05.DSpace SAF Submission Ingestion Package generated from Vireo submission #15422 on 2020-10-02 at 15:48:56Made available in DSpace on 2020-10-07T22:48:04Z (GMT). No. of bitstreams: 3
FATHI-DISSERTATION-2020.pdf: 27458256 bytes, checksum: 17880d1a44e4f24438dde7e96a8dad85 (MD5)
LICENSE.txt: 4210 bytes, checksum: b2f6e6970694ac3bc3e89296ed220a44 (MD5)
PROQUEST_LICENSE.txt: 4556 bytes, checksum: 6a4f7aaef7517e37ebe8556f98fcbadc (MD5)
Previous issue date: 2020-06-17Embargo set by: Seth Robbins for item 116284
Lift date: 2022-10-07T22:48:14Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 116284
Lift date: 2022-10-07T22:50:13Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemAuthor requested closed access (OA after 2yrs) in Vireo ETD systemLimite
Médiation et protection de l’enfance [Le travail social à l’épreuve de la conflictualité parentale]
No full textThis contribution aims to examine the conditions for using mediation in the scope of child protection during follow-up by social workers in families. Providing child-rearing support for children in situations of parental conflict through traditional approaches of social work has proven to be unsatisfactory for the professionals concerned. Looking on the one hand at the points of agreement between the field of mediation and that of traditional social work (in-home child-rearing support), the author identifies the main problems for users and difficulties regarding professionals’ involvement.Cette contribution vise à examiner les conditions d’application de la médiation dans le cadre de la protection de l’enfance lors des suivis réalisés par les travailleurs sociaux au sein des familles. La prise en charge éducative des enfants en situation de conflit parental par les approches traditionnelles du travail social se révèle insatisfaisante pour les professionnels concernés. Tout en étudiant les points de concordance entre le champ de la médiation et celui du travail social traditionnel (action éducative en milieu ouvert), l’auteur repère les principales problématiques des usagers et les difficultés d’intervention des professionnels.Ben Mrad Fathi. Médiation et protection de l’enfance [Le travail social à l’épreuve de la conflictualité parentale]. In: Politiques sociales et familiales, n°107, 2012. pp. 65-75
Personalized absorbable gastrointestinal stents for intestinal fistulae and perforations
No full textGastrointestinal (GI) tract perforations and obstructions are relatively frequent surgical emergencies, are potentially life-threatening, and can occur from several different sources. In general, treatment requires urgent surgical repair or resection and at times can lead to further complications. Currently available stents are non-absorbable, are manufactured in a narrow size range, and/or are limited to usage in locations that are accessible for endoscopic removal post-healing. The use of 3D-printed bioresorbable polymeric stents will provide patients with a stent that can prevent leakage, is tailored specifically to their geometry, will degrade with time to eliminate the need for further surgeries for stent removal post-healing, and will be usable in locations that are not endoscopically accessible. This project focused on the characterization of polycaprolactone-polydioxanone (PCL-PDO) composites for use in a bioresorbable gastrointestinal stent. Dynamic Mechanical Analysis (DMA) tests were conducted to separately analyze the effects of composition, the filament formation process, and physiological temperature on the PCL-PDO material properties. The proposed stent design was then modelled using computer-aided design, and Finite Element Analysis (FEA) was used to simulate the effects of physiologically relevant forces on stent integrity. The presence of hydrolysable ester bonds was confirmed using FTIR spectroscopy, and composite morphology was examined with scanning electron microscopy. In vitro studies were used to evaluate the biocompatibility of the polymer composite, finding that the PCL:PDO filament had no negative impact on cell viability over a period of 48 hours, and in fact was conducive to cell proliferation over a period of 3 days. PCL-PDO stents were then 3D-printed and placed in vivo in a pig model, and histological evaluation was used to determine the safety of these stents. Further analyses were conducted through stent placement in ex vivo pig intestines.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2019-12-01The student, Parinaz Fathi, accepted the attached license on 2017-12-08 at 10:42.The student, Parinaz Fathi, submitted this Thesis for approval on 2017-12-08 at 10:49.This Thesis was approved for publication on 2017-12-12 at 09:02.DSpace SAF Submission Ingestion Package generated from Vireo submission #11917 on 2018-03-13 at 10:37:57Made available in DSpace on 2018-03-13T17:35:52Z (GMT). No. of bitstreams: 3
FATHI-THESIS-2017.pdf: 1901157 bytes, checksum: 828764aaf1e79b24190fd0d4a52cddd8 (MD5)
Draft_120817 - Dept review.docx: 9783017 bytes, checksum: ec2fc5cebde3a443185ba7e4e3eb3273 (MD5)
LICENSE.txt: 4210 bytes, checksum: 111b8b43508f67df5ce0c0280e807410 (MD5)
Previous issue date: 2017-12-12Embargo set by: Seth Robbins for item 105490
Lift date: 2020-03-13T17:36:05Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemLimited Restriction Lifted for Item 105490 on 2020-03-14T09:15:16Z
The impact of Industry 4.0 on bottleneck analysis in production and manufacturing : Current trends and future perspectives
No full textBottleneck analysis, known as one of the essential lean manufacturing concepts, has been extensively researched in the literature. Recently, there has been a move towards using new Industry 4.0-based concepts and technologies in the development of bottleneck analysis. However, the interrelations between bottleneck analysis and Industry 4.0 have not been studied thoroughly. The present study addresses this gap and performs a systematic literature review on articles available in major scientific databases (i.e., Web of Science and Scopus) to investigate the impact of Industry 4.0 on the advancement of bottleneck analysis in production and manufacturing. Bibliometric analysis and content review were performed to extract the quantitative and qualitative data. Results revealed that only five out of 15 design principles and five out of eleven technologies of Industry 4.0 were addressed previously in developing bottleneck analysis methods. In addition to highlighting the existing gaps in the literature and proposing topics for future research, several potential development streams are proposed by studying the design principles and technologies of Industry 4.0, which have not been considered in bottleneck analysis before.CC BY 4.0Corresponding author at: Division of Intelligent Production Systems, School of Engineering Science, University of Skövde, 54128 Skövde, Sweden. E-mail addresses: [email protected], [email protected] (M. Fathi).This study was funded by the Knowledge Foundation (KKS), Sweden, through the ACCURATE 4.0 project, under grant agreement No. 20200181.ACCURATE 4.
Strategic supplier selection for renewable energy supply chain under green capabilities (fuzzy BWM-WASPAS-COPRAS approach)
No full textThe supplier selection problem (SSP) is a significant issue in renewable supply chain management (RSCM). Selecting a strategic green supplier can not only discover the sustainable development of supply chains but also optimize the consumption rate of resources and decrease the negative environmental effects, which adopts to the green development context. As a multiple criteria group decision-making (MCGDM) problem, choosing a strategic green supplier is important to renewable supply chains. However, how to choose a strategic green supplier for supply chains is a great effort. Hence, In the present work, evaluating a set of strategic suppliers is primarily based on green capabilities by using an integrated fuzzy Best Worst Method (FBWM) with the other two techniques, namely COPRAS (Complex Proportional Assessment of Alternatives) and WASPAS (Weighted Aggregated Sum-Product Assessment). Initially, nine strategic supplier selection criteria have been identified through literature review and a real-world case study of Iran's renewable energy supply chain is deliberated to exhibit the proposed framework's applicability. The applied methodology and its analysis will provide insight to decision-makers of strategic supplier selection. It may aid decision-makers and the procurement department in differentiating the significant strategic green supplier selection criteria and assess the strategic green supplier in the local and global market supply chain. Finally, the strengths and limitation of the framework are discussed by using comparative analysis with other methods.CC BY 4.0Corresponding author: Masood Fathi, Division of Intelligent Production Systems, School of Engineering Science, University of Skövde, 54128, Skövde, Sweden. E-mail addresses: [email protected] (B. Masoomi), [email protected] (I.G. Sahebi), [email protected] (M. Fathi), [email protected] (F. Yıldırım), [email protected] (S. Ghorbani).</p
Line balancing for energy efficiency in production : A qualitative and quantitative literature analysis
No full textIn the rapidly evolving landscape of hyperconnected digital manufacturing, known as Industry 4.0, achieving energy efficiency has become a critical priority. As manufacturers worldwide strive to meet sustainable development goals, enhancing energy efficiency is essential for reducing operational costs and minimizing environmental impact. In this context, line balancing is a pivotal strategy for optimizing energy consumption within manufacturing processes. This study presents a comprehensive literature review on the Line Balancing Problems (LBPs) focused on enhancing energy efficiency. The review aims to provide a holistic understanding of this domain by examining past, present, and future trends. A systematic literature review is conducted using the PRISMA method, incorporating both qualitative and quantitative analyses. The quantitative analysis identifies prevalent patterns and emerging trends in energy efficiency optimization within the LBP domain. Concurrently, the qualitative analysis explores various aspects of existing studies, including configurations of lines, managerial considerations, objectives, solution methodologies, and real-world applications. This review synthesizes current knowledge and highlights potential avenues for future research, underlining the importance of energy efficiency in driving sustainable practices in Industry 4.0 and the emerging Industry 5.0 paradigm.CC BY 4.0Available online 21 April 2025, 111144Corresponding author at: Division of Intelligent Production Systems, School of Engineering Science, University of Skövde, P.O. Box 408, SE-541 28 Skövde, Sweden. E-mail address: [email protected] (M. Fathi). The second and third authors would like to acknowledge funding from the Knowledge Foundation (KKS) and Sweden’s Innovation Agency through the ACCURATE 4.0 (grant agreement No. 20200181) and PREFER projects, respectively.ACCURATE 4.0PREFE
Numerical Simulations of Real-Fluid Reacting Sprays at Transcritical Pressures Using Multiphase Thermodynamics
No full textTranscritical fuel sprays form an indispensable part of high-pressure energy-conversion systems. Modeling the complex real-fluid effects in the high-pressure multiphase regime of such sprays accurately, especially the hybrid subcritical-to-supercritical mode of evaporation during mixing fuel and oxidizer, is essential and challenging. This paper represents a novel numerical framework for accurate and efficient simulations of transcritical sprays. The spray is modeled using a diffuse interface method with multiphase thermodynamics, which couples real-fluid state equations with vapor-liquid equilibrium (VLE) calculations to compute thermo-transport properties. A physically consistent turbulence model for large-eddy simulations (LES) is used, with combustion being modeled via real finite-rate chemistry based on the fugacity of the species. The current method is accurate and free from semi-empirical drop break-up/evaporation models. LES results for the Engine Combustion Network (ECN) Spray-A benchmark demonstrate the potential of the proposed method and its advantages over traditional approaches.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Flight Performance and PropulsionAerodynamicsFluid Mechanic
- …
