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Dyeability of Polyester and Polyamide Fabrics Employing Citric Acid

Journal of Textile Science and Technology 2017年第3期3卷 31-44页

作者： Renee Simoes Argolo do Carmo luciana juncioni de arauz Jorge Marcos Rosa Julia Baruque-Ramos Mauricio de Campos Araujo School of Arts Sciences and Humanities University of Sao Paulo Sao Paulo Brazil Adolfo Lutz Institute Sao Paulo Brazil College of Technology SENAI “Antoine Skaf” Sao Paulo Brazil

The employment of sustainable chemicals, such as citric acid, represents a possibility for the development of textile dyeing processes. This study aimed to analyze the possibility of replacement of acetic acid (commonly used in textile processing) by citric acid in polyester and polyamide 6 dyeing processes. The utilization of citric acid as leveling agent for disperse dyestuffs was also investigated. Dyeing processes in turquoise color for these fabrics were performed employing citric and acetic acid. Color differences between dyeing processes and color fastness to water were evaluated. All the color dyeing differences were not significant and there was no transference in color fastness tests (grade 5). Otherwise, the differences among polyamide dyeing processes could be related to the efficiency of citric acid solution as sequestering agent. Notwithstanding citric acid to be more expensive than acetic acid and the need of previous dissolution by stirring, it could be advantageous for some formulations.

关键词： Citric Acid Acetic Acid Textile Industry Polyester Polyamide Dyeing

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Financial Aid for Female Graduate Students, Researchers and Foreign Residents in Mexico, Over 35 Years Old

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Cultural and Religious Studies 2017年第8期5卷 475-480页

作者： Diana arauz Mercado Olga Nelly Estrada Universidad Autonoma de Zacatecas Zacatecas Mexico Universidad Autonoma de Nuevo Leon Nuevo Leon Mexico

CONACYT in Mexico has implemented in recent years three types of scholarships and different specific supports for women who wish to complete their professional training, based on the National development Plan ＂Equal Opportunities＂. These are in first place, Support for mothers who are heads of household （Bachelor and technical formation of a third level） such as single, divorced, widowed or separated Mexican mothers. In second place, it is the program complementing an education, specialization, masters or PhD--through Scholarship grants for academic strengthening of indigenous women in CONACYT enrolled in graduate studies in Mexico or abroad and the third place the Young Talents Program. Those modalities have met their specific objectives （we will focus on the first type）; however, the realities pertaining to the academic, scientific, work and life cycle of women in the XXI century go beyond marital statuses, motherhood, or any particular social statuses or being indigenous and this study motives the analysis of this matter in the country.

关键词： female students researchers foreign students

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Naringenin prevents experimental liver fibrosis by blocking TGFβ-Smad3 and JNK-Smad3 pathways

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World Journal of Gastroenterology 2017年第24期23卷 4354-4368页

作者： Erika Hernández-Aquino Natanael Zarco Sael Casas-Grajales Erika Ramos-Tovar Rosa E Flores-Beltrán Jonathan arauz Mineko Shibayama Liliana Favari Víctor Tsutsumi José Segovia Pablo Muriel Laboratory of Experimental Hepatology Department of PharmacologyCinvestav-IPNApartado Postal 14-740Mexico City department of Physiology Biophysics and NeurosciencesCinvestav-IPNApartado Postal 14-740Mexico City department of Pharmacology School of MedicineAutonomous University of Baja CaliforniaMexicaliApartado Postal 21100 department of Infectomics and Molecular Pathogenesis Cinvestav-IPNApartado Postal 14-740Mexico City

To study the molecular mechanisms involved in the hepatoprotective effects of naringenin (NAR) on carbon tetrachloride (CCl4)-induced liver fibrosis. METHODSThirty-two male Wistar rats (120-150 g) were randomly divided into four groups: (1) a control group (n = 8) that received 0.7% carboxy methyl-cellulose (NAR vehicle) 1 mL/daily p.o.; (2) a CCl4 group (n = 8) that received 400 mg of CCl4/kg body weight i.p. 3 times a week for 8 wk; (3) a CCl4 + NAR (n = 8) group that received 400 mg of CCl4/kg body weight i.p. 3 times a week for 8 wk and 100 mg of NAR/kg body weight daily for 8 wk p.o.; and (4) an NAR group (n = 8) that received 100 mg of NAR/kg body weight daily for 8 wk p.o. After the experimental period, animals were sacrificed under ketamine and xylazine anesthesia. Liver damage markers such as alanine aminotransferase (ALT), alkaline phosphatase (AP), γ-glutamyl transpeptidase (γ-GTP), reduced glutathione (GSH), glycogen content, lipid peroxidation (LPO) and collagen content were measured. The enzymatic activity of glutathione peroxidase (GPx) was assessed. Liver histopathology was performed utilizing Masson’s trichrome and hematoxylin-eosin stains. Zymography assays for MMP-9 and MMP-2 were carried out. Hepatic TGF-β, α-SMA, CTGF, Col-I, MMP-13, NF-κB, IL-1, IL-10, Smad7, Smad3, pSmad3 and pJNK proteins were detected via western blot. RESULTSNAR administration prevented increases in ALT, AP, γ-GTP, and GPx enzymatic activity; depletion of GSH and glycogen; and increases in LPO and collagen produced by chronic CCl4 intoxication (P decrease in collagen deposition when rats received NAR in addition to CCl4. Although zymography assays showed that CCl4 produced an increase in MMP-9 and MMP-2 gelatinase activity; interestingly, NAR administration was associated with normal MMP-9 and MMP-2 activity (P < 0.05). The anti-inflammatory, antine

关键词： Fibrosis Transforming growth factor-β Naringenin pSmad3 Smad3 JNK Nuclear factor kappa Carbon tetrachloride

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Interdisciplinary feeding clinic during the coronavirus disease 2019 pandemic:Implementing telehealth and social determinants of health screening

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Pediatric Investigation 2023年第1期7卷 43-48页

作者： Stephanie Harshman desiree Sierra-Velez Kelly Daigle Cheryl Hersh Kristen Risley Alexy D.arauz Boudreau Sarah Matathia Lauren Fiechtner Meg Simione Neuroendocrine Unit Massachusetts General HospitalBostonMassachusettsUSA Eating Disorders Clinical and Research Program Massachusetts General HospitalBostonMassachusettsUSA department of Gastroenterology and Nutrition Mass General for ChildrenBostonMassachusettsUSA department of Speech Language and Swallowing DisordersMassachusetts General HospitalBostonMassachusettsUSA Performance Analysis and Improvement Unit Massachusetts General Hospital BostonBostonMassachusettsUSA Massachusetts General Physicians Organization BostonMassachusettsUSA Division of General Academic Pediatrics Mass General for ChildrenBostonMassachusettsUSA Greater Boston Food Bank BostonMassachusettsUSA department of Pediatrics Harvard Medical SchoolBostonMassachusettsUSA Division of General Internal Medicine Massachusetts General HospitalBostonMassachusettsUSA

Pediatric feeding disorders(PFD)are an impairment in oral intake that are associated with nutritional,medical,psychosocial,or feeding skills dysfunction.1 They are clinically complex and challenging due to the heterog... 详细信息

关键词： intake impairment feeding

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