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Flexible computational photodetectors for self-powered activity sensing

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npj Flexible Electronics 2022年第1期6卷 45-52页

作者： Dingtian Zhang Canek fuentes-Hernandez Raaghesh Vijayan Yang Zhang Yunzhi Li Jung Wook Park Yiyang Wang Yuhui Zhao Nivedita Arora Ali Mirzazadeh Youngwook Do Tingyu Cheng Saiganesh Swaminathan Thad Starner Trisha L.Andrew Gregory D.Abowd School of Interactive Computing Georgia Institute of TechnologyAtlantaGAUSA School of Electrical and Computer Engineering Georgia Institute of TechnologyAtlantaGAUSA Department of Electrical and Computer Engineering Northeastern UniversityBostonMAUSA Department of Chemistry University of Massachusetts AmherstAmherstMAUSA Department of Electrical and Computer Engineering University of CaliforniaLos AngelesCAUSA Human-Computer Interaction Institute Carnegie Mellon UniversityPittsburghPAUSA Departments of Chemistry and Chemical Engineering University of Massachusetts AmherstAmherstMAUSA

Conventional vision-based systems,such as cameras,have demonstrated their enormous versatility in sensing human activities and developing interactive ***,these systems have long been criticized for incurring privacy,power,and latency issues due to their underlying structure of pixel-wise analog signal acquisition,computation,and *** this research,we overcome these limitations by introducing in-sensor analog computation through the distribution of interconnected photodetectors in space,having a weighted responsivity,to create what we call a computational *** photodetectors can be used to extract mid-level vision features as a single continuous analog signal measured via a two-pin *** develop computational photodetectors using thin and flexible low-noise organic photodiode arrays coupled with a self-powered wireless system to demonstrate a set of designs that capture position,orientation,direction,speed,and identification information,in a range of applications from explicit interactions on everyday surfaces to implicit activity detection.

关键词： everyday overcome photodetector

Extraction of β-Carotene,Vitamin C and Antioxidant Compounds from Physalis peruviana(Cape Gooseberry)Assisted by High Hydrostatic Pressure

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Food and Nutrition Sciences 2013年第8期4卷 109-118页

作者： Vilbett Briones-Labarca Claudia Giovagnoli-Vicuna Paola Figueroa-Alvarez Issis Quispe-fuentes Mario Pérez-Won Department of Food Engineering Universidad de La SerenaAv.RaúlBitrán s/nLa SerenaChile Center for Advanced Studies in Arid Zones CEAZAAv.Raúl Bitrán s/nLa SerenaChile

High hydrostatic pressure assisted extraction (HHPE) has several advantages when compared to traditional extraction methods, which frequently cause degradation and loss of target components and might consume large volumes of environmentally unfriendly solvents. The aim of this study was to develop an assisted extraction method using high hydrostatic pressure (HHPE) and to evaluate both HHPE and conventional extraction methods for β-carotene, antioxidant compounds and vitamin C from cape gooseberry. β-carotene and compounds with antioxidant activity (2,2-diphenyl-1-picrylhydrazyl radical assay (DPPH*) or radical scavenging activity;ferric reducing antioxidant power assay (FRAP)) were extracted using HHPE for 5 min, 10 min and 15 min at 500 MPa, while vitamin C was extracted at 500 MPa for 30 s, 60 s and 90 s. Processing significantly affected (p ≤ 0.05) the β-carotene content of all samples, increasing retention by 8%, 14% and 15% at 500 MPa after 5 min, 10 min and 15 min of HPPE, respectively. The highest antioxidant content determined by DPPH* and FRAP assays was obtained in a sample treated at 500 MPa for 15 min, showing increases of 26% and 51%, respectively, compared with an untreated sample. The ascorbic acid content of fresh cape gooseberry was 26.31 mg·100 g-1. In fact, the ascorbic acid levels were significantly higher for all high-pressure-treated samples compared to this of conventionally extracted sample (p ≤ 0.05), exhibiting increases of 9%, 41% and 53% at 500 MPa after 30 s, 60 s and 90 s of HPPE, respectively. Thus, the application of HHPE produced higher β-carotene content, antioxidant compounds and vitamin C content and required less extraction time compared to other extraction methods. The pharmaceutical and food industries can benefit by using high pressure extraction technology.

关键词： Cape Gooseberry High Hydrostatic Pressure β-Carotene Vitamin C

Reduction of the closure time of postoperative enterocutaneous fistulas with fibrin sealant

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World Journal of Gastroenterology 2010年第22期16卷 2793-2800页

作者： Jorge Avalos-González Eliseo Portilla-deBuen Caridad Aurea Leal-Cortés Abel Orozco-Mosqueda María del Carmen Estrada-Aguilar Gabriela Abigail Velázquez-Ramírez Gabriela Ambriz-González Clotilde fuentes-Orozco Aldo Emmerson Guzmán-Gurrola Alejandro González-Ojeda Research Unit in Clinical Epidemiology High Specialized Medical Unit Surgical Research Division National Western Medical Center Department of Surgery Regional General Hospital #1 of the Mexican Institute for Social Security Avenida Héroes de Nocupetaro y Nicolás de Regules Colonia Centro Department of Pediatric Surgery Children's Hospital National Western Medical Center

AIM: To assess whether the use of fibrin sealantshortens the closure time of postoperative enterocutaneous fistulas (ECFs). METHODS: The prospective case-control study included 70 patients with postoperative ECFs with an output of 2 cm and without any local complication. They were divided into study (n = 23) and control groups (n = 47). Esophageal, gastric and colocutaneous fistulas were monitored under endoscopic visualization, which also allowed fibrin glue application directly through the external hole. Outcome variables included closure time, time to resume oral feeding and morbidity related to nutritional support. RESULTS: There were no differences in mean age, fistula output, and follow-up. Closure-time for all patients of the study group was 12.5 ± 14.2 d and 32.5 ± 17.9 d for the control group (P < 0.001), and morbidity related to nutritional support was 8.6% and 42.5%, respectively (P < 0.01). In patients with colonic fistulas, complete closure occurred 23.5 ± 19.5 d after the first application of fibrin glue, and spontaneous closure was observed after 36.2 ± 22.8 d in the control group (P = 0.36). Recurrences were observed in 2 patients because of residual disease. One patient of each group died during follow-up as a consequence of septic complications related to parenteral nutrition. CONCLUSION: Closure time was significantly reduced with the use of fibrin sealant, and oral feeding was resumed faster. We suggest the use of fibrin sealant for the management of stable enterocutaneous fistulas.

关键词： Enterocutaneous fistulas Fibrin sealant Spontaneous closure

Relativistic charged stellar modeling with a perfect fluid sphere

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Communications in Theoretical Physics 2023年第9期75卷 113-121页

作者： Joaquin Estevez-Delgado Joel Arturo Rodríguez Ceballos Jorge Mauricio Paulin-fuentes JoséVega Cabrera Antonio Rendón Romero Facultad de Ciencias Físico Matemáticas de la Universidad Michoacana de San Nicolás de Hidalgo Edificio BCiudad UniversitariaMorelia MichoacánCP 58040Mexico Facultad de Químico Farmacobiología de la Universidad Michoacana de San Nicolás de Hidalgo Tzintzuntzan No.173Col.MatamorosMorelia MichoacánC.P.58240Mexico División Académica de Ciencias Básicas de la Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km.1Col.La Esmeralda86690CunduacánTabascoMexico Facultad de Ingenieria Mecanica de la Universidad Michoacana de San Nicolás de Hidalgo Edificio W Ciudad UniversitariaCP 58030Morelia MichoacánMexico

In this report we present the generalization of a solution to Einstein's equations with perfect fluid for the case of Einstein–Maxwell with perfect *** effect of the charge is reflected by a parameter,ν,and its interval is determined by the positivity condition from the pressure in the interior of the *** is shown that the solution is stable according to the Zeldovich criteria as well as in relation to the criteria of the adiabatic *** compactness,u=GM/c^(2)R,of this charged model is greater than it is for the chargeless case as a result of the effect of the presence of the *** allows it to represent stars with a high compactness,in particular a graphic analysis is presented for the star SAX J1808.4-3658 with mass M=1.435M_(⊙)and radius R=7.07 *** these data and employing the solution,we obtain that the total maximum charge for the star is Q=2.4085×10^(20)C.

关键词： general relativity exact solutions charged fluid stars models

Methamphetamine and male suicide in the US-Mexico border region

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Open Journal of Internal Medicine 2013年第2期3卷 30-33页

作者： Elsa de J. Hernández fuentes Bernardo Ng Irma A. González Hernández Department of Sociology Universidad Autónoma de Baja California Mexicali Mexico Sun Valley Behavioral Medical Center Imperial USA

Introduction: Studying the use of psychoactive substances in completed suicide is essential in order to understand its role in the suicide generating stimuli. The most commonly reported substances are alcohol and opioids. Method: This is a retrospective study of completed suicide database of the Forensics Medical office in the city of Mexicali from 1999 to 2005. This is the capital of the Mexican state of Baja California in the US-Mexico border region. Results: Out of 288 suicides, 260 were men, and the most frequent drug found on autopsy was methamphetamine (p < 0.001). The modal victim was a young male (20 - 39 years old), employed in blue-collar jobs, lived in an urban area, found in their homes, and died by hanging. Discussion: Although no causal effect can be drawn, our study results suggest that methamphetamine use may be a risk factor for suicide in this sample.

关键词： Mexican US-Mexico Border Dugs Scide Mthamphetamine

Impact of diabetes on promoting the growth of breast cancer

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Cancer Communications 2021年第5期41卷 414-431页

作者： Ping-Chieh Chou Hyun Ho Choi Yizhi Huang Enrique fuentes-Mattei Guermarie Velazquez-Torres Fanmao Zhang Liem Phan Jaehyuk Lee Yanxia Shi James A.Bankson Yun Wu Huamin Wang Ruiying Zhao Sai-Ching Jim Yeung Mong-Hong Lee Department of Molecular and Cellular Oncology the University of Texas MD Anderson Cancer CenterHoustonTX 77030USA Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor Disease the Sixth Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510020P.R.China Research Institute of Gastroenterology the Sixth Affiliated Hospital of Sun Yat-sen University GuangzhouGuangdong 510020P.R.China Department of Imaging Physics the University of Texas MD Anderson Cancer CenterHoustonTX 77030USA Department of Medical Oncology Sun Yat-sen University Cancer CenterGuangzhouGuangdong 510060P.R.China Department of Pathology the University of Texas MD Anderson Cancer CenterHoustonTX 77030USA Department of Emergency Medicine the University of Texas MD Anderson Cancer CenterHoustonTX 77030USA

Background:Type Ⅱ diabetes mellitus(DM2)is a significant risk factor for cancers,including breast ***,a proper diabetic breast cancer mouse model is notwell-established for treatment strategy ***,the precise diabetic signaling pathways that regulate cancer growth remain *** the present study,we established a suitable mouse model and demonstrated the pathogenic role of diabetes on breast cancer ***:We successfully generated a transgenic mouse model of human epidermal growth factor receptor 2 positive(Her2^(+) or ERBB2)breast cancer with DM2 by crossing leptin receptor mutant(Lepr^(db/+))mice with (MMTV-ErbB2/neu)*** administrated with antidiabetic drugs to assess the impacts of controlling DM2 in affecting tumor *** resonance spectroscopic imaging was employed to analyze the tumor ***:Treatment with metformin/rosiglitazone in MMTV-ErbB2/Lepr^(db/db) mousemodel reduced serum insulin levels,prolonged overall survival,decreased cumulative tumor incidence,and inhibited tumor ***-insulin resistance medications also inhibited glycolytic metabolism in tumors in vivo as indicated by the reduced metabolic flux of hyperpolarized ^(13)C pyruvate-to-lactate *** tumor cells from MMTV-ErbB2/Lepr^(db/db) transgenic mice treated with metformin had reprogrammed metabolism by reducing levels of both oxygen consumption and lactate *** decreased the expression of Myc and pyruvate kinase isozyme 2(PKM2),leading to metabolism ***,metformin attenuated the mTOR/AKT signaling pathway and altered adipokine ***:MMTV-ErbB2/Lepr^(db/db) mouse model was able to recapitulate diabetic HER2^(+) human breast ***,our results defined the signaling pathways deregulated in HER2^(+) breast cancer under diabetic condition,which can be intervened by anti-insulin resistance therapy.

关键词： diabetes human epidermal growth factor receptor 2 breast cancer metformin metabolism

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分段崩落采煤法的环境监测系统

煤矿安全 1988年第5期 33-34页

作者： J.L.fuentes

在西班牙煤炭工业中,尤其是对于急倾斜烟煤厚煤层,分段崩落采煤法得到广泛的应用。近年来,由于采用长壁法或台阶式采煤法的急倾斜工作面出现事故,人们才对分,段崩落采煤法的兴趣有所增长。阿斯图里亚斯地区的若干矿井正在考虑改用这种... 详细信息

在西班牙煤炭工业中,尤其是对于急倾斜烟煤厚煤层,分段崩落采煤法得到广泛的应用。近年来,由于采用长壁法或台阶式采煤法的急倾斜工作面出现事故,人们才对分,段崩落采煤法的兴趣有所增长。阿斯图里亚斯地区的若干矿井正在考虑改用这种采煤方法。尽管分段崩落式采煤法增加了顶板管理的安全性,但是其它问题,如沼气涌出、自

关键词：采煤法环境监测系统急倾斜阿斯图里亚斯顶板管理厚煤层台阶式出现事故自然发火煤巷

THE USE OF LUCITE IN SURGICAL TREATMENT OF PULMONARY TUBERCULOSIS1

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CHINESE MEDICAL JOURNAL 1949年第3期67卷 136-136页

作者： NATHAN C. T. CHANG alberto SANCHEZ DE fuentes, JR.

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