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为世界而生

Performance of Brooders,Fry and Growth of the Nile Tilapia(Oreochromis niloticus)Cultured in an Experimental Recirculating Aquaculture System

作者： (英)乔治娜·费里(georgina Ferry)

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Agricultural Sciences 2015年第9期6卷 1014-1022页

作者： Jose Luis Arredondo-Figueroa Laura georgina Nunez-García Jesus T.Ponce-Palafox Irene de Los Angeles Barriga-Sosa Unidad Acuícola Departamento de ZootecniaUniversidad Autonoma de AguascalientesAguascalientesMéxico Planta Experimental de Produccion Acuicola Division de Ciencias Biológicas y de la SaludDepartamento de HidrobiologíaUniversidad Autónoma Metropolitana IztapalapaMéxicoD.F.México Centro de Innovación y Transferencia Tecnológica CENITT Posgrado CBAPEscuela Nacional de Ingeniería PesqueraUniversidad Autónoma de NayaritTepicMéxico

We present results of a long-term study aimed to optimize Nile tilapia O. niloticus production in a recirculating aquaculture system (RAS) in México City. Three experiments were evaluated: 1) fry production;2) production of masculinized fries;and 3) assessment of growth under three different densities (10, 30 and 75 fish/m3). The broodstock produced on average 2400 ± 600 fry every 15 days during six months, with a total production of 28,800 ± 2000. One hundred percent males were produced in 274-L raceways in an eight-week period. The obtained results in fish production in the RAS system indicated variations related to density. A daily growth rate of 3.6 g/day was registered with a density of 10 fish/m3, 0.9 g/day in 30 fish/m3 and 0.4 g/day in 75 fish/m3. This information could be useful for production purposes in this type of systems.

关键词： Tilapia Oreochromis niloticus Intensive Culture Sex Reversal Growth Densities

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打造高效利用能源的供应链

经理人 2007年第11期 100-101页

作者： Peter Parry Joseph Martha georgina Grenon

随着能源价格、能源储备，以及气候变化等问题逐渐在全球范围内引起关注，越来越多的公司开始把注意力转向一个长久不为人重视，但能源消耗却是最为严重的地方——供应链。简单来说，供应链是一个集生产和分销于一体的网络，它包括原料... 详细信息

随着能源价格、能源储备，以及气候变化等问题逐渐在全球范围内引起关注，越来越多的公司开始把注意力转向一个长久不为人重视，但能源消耗却是最为严重的地方——供应链。简单来说，供应链是一个集生产和分销于一体的网络，它包括原料采购、产品制造、运输、分销、消费和废物处理等各个环节。

关键词：能源价格供应链高效利用能源储备气候变化能源消耗原料采购产品制造

Evaluation of the Physicochemical Behavior of Waste Water Treatment Polyelectrolytes with Metal Ions

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Journal of Environmental Protection 2013年第3期4卷 270-279页

作者： Eduardo A. López Maldonado Mercedes T. Oropeza Guzmán georgina Pina-Luis Adrián Ochoa-Terán Graduate and Research Center of the Technical Institute of Tijuana Tijuana México Graduate and Research Center of the Technical Institute of Tijuana Tijuana México Centre for Research and Technological Development in Electrochemistry Tijuana México

In this paper is describing the physicochemical behavior of polyelectrolytes (PEs) used in waste water treatment with mono-, di- and trivalent metal ions as K+, Mg2+, Zn2+, Fe3+, Sn2+, Cd2+, Pb2+, Cu2+, Ni2+, Al3+ and Cr3+. A coagulant polyelectrolyte Poly(vinyl sulfate) potassium salt (PVSK), and a commercial available Flocculant Trident 2756, were used as models for the study. The colloidal titration UV-Vis spectroscopy technique was successfully implemented in order to evaluate the complexation of PEs with Toluidine Blue O (OTB) and the ability of different metal ions to displace the OTB from the PE-OTB complex and form the PE-metal ion complex. From the experiments was concluded that PVSK has a high affinity for Al3+ and Mg2+ while the Flocculant has the highest affinity for Sn2+ followed by Zn2+and Mg2+. The absorbance profiles of polyelectrolyte-OTB complex (Absorbance vs. Metal/PE) were used to calculate association constants. On the other hand, the mass balance of OTB and its absorbance profiles were used to calculate the association constants of polyelectrolyte-metal ion complexes. Thus metal ions with the highest affinities have the highest association constant. Metal ions with the highest affinities present the highest values of association constant.

关键词： Polyelectrolytes Metal Ions Colloidal Titration UV-Vis Spectroscopy O-Toluidine WastewaterTreatment

Downregulation of Scar Fibroblasts by Antineoplastic Drugs: A Potential Treatment for Fibroproliferative Disorders

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Surgical Science 2016年第6期7卷 258-271页

作者： M. georgina Uberti Yvonne N. Pierpont Rajat Bhalla Karan Desai Martin C. Robson Wyatt G. Payne Institute for Tissue Regeneration Repair & Rehabilitation Bay Pines V.A. Healthcare System Bay Pines USA Division of Plastic Surgery University of South Florida Tampa USA

The various fibroproliferative disorders affecting humans have in common excess fibroblast activity and persistent overexpression or dysregulated activity of transforming growth factor beta (TGF-β). Cancer has many similar characteristics. Antineoplastic drugs can downregulate fibroblast activity and cytokine growth factors. This study evaluates the effect of six antineoplastic drugs on keloid and Dupuytren’s disease fibroblasts. Keloid, normal scar, Dupuytren’s affected palmar fascia, and normal palmar fascia fibroblasts were grown and seeded into Fibroblast Populated Collagen Lattices (FPCLs). The FPCLs were treated with one of six antineoplastic drugs or left untreated as controls. At 7 days, supernatants were extracted from all FPCLs and assayed for expression of Transforming Growth Factor beta (TGF)-β1 and TGF-β2. All six antineoplastic drugs significantly inhibited FPCL contraction in both fibroproliferative conditions compared with the untreated controls (p β1 and TGF-β2 expression was downregulated in the supernatants of all FPCLs by the drug exposure. Cytotoxicity did not occur in these studies and was not the reason for the results. Although antineoplastic drugs can have significant side effects when given systemically, these results may be minimized when given to small areas involved in fibroproliferative scarring or when given topically or intralesionally. These in vitro results suggest that antineoplastic drugs may have a utility for treating various fibroproliferative disorders and warrant further investigation.

关键词： Scar Fibroblasts Antineoplastic Drugs Fibroproliferative Disorders Dupuytren’s Disease Keloid

Mathematical Modelling of Einstein’s Rate Equations for Zinc Phosphate Glass with Er<sup>3+</sup>-Yb<sup>3+</sup>

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Open Journal of Applied Sciences 2021年第9期11卷 1038-1045页

作者： Frida Lissete Flores Rivera Grethell georgina Pérez-Sánchez Miguel Angel Barron-Meza Joan Reyes Miranda Dulce Yolotzin Medina Velázquez Division of Basic Science and Engineering Universidad Autónoma Metropolitana México City México

There is a constant growth in the demand of data information transmission capacity, that is, more and more people send data, voice, video signals, among others, through communications networks. Due to the above there is great interest in improving network devices, such as optical amplifiers, which must cover a large bandwidth and generate greater gain than those currently available. For this reason in this work a computational simulation for a Quasi-system was carried out three energy levels of Erbium and Ytterbium varying their concentrations and proving that they are optimal candidates in a zinc phosphate matrix as this type of glass contains properties such as, high transparency, low melting point, high thermal stability, high gain density due to high solubility, low refractive index and low dispersion, which makes them optimal as signal amplifiers. The results confirm that by increasing the doping of the Erbium ion the gain of the amplifier decreases, contrary to the Ytterbium ion that by increasing the doping the gain of the amplifier increases.

关键词： Optical Telecommunications Rare Earths Doping Optical Amplifier Gain

Correction to: Bioactive potential of natural biomaterials: identification, retention and assessment of biological properties

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Signal Transduction and Targeted Therapy 2021年第6期6卷 1930-1930页

作者： Kieran Joyce georgina Targa Fabra Yagmur Bozkurt Abhay Pandit National University of Ireland School of Medicine Galway Ireland (GRID:grid.6142.1) (ISNI:0000 0004 0488 0789) National University of Ireland CÚRAM SFI Research Centre for Medical Devices Galway Ireland (GRID:grid.6142.1) (ISNI:0000 0004 0488 0789) National University of Ireland CÚRAM SFI Research Centre for Medical Devices Galway Ireland (GRID:grid.6142.1) (ISNI:0000 0004 0488 0789)

Since the publication of this review article,1 the authors recognise a misinterpretation of a cited article in the *** was previously stated on page 2,column 2,line 54 that:"Silk fibroin binds to receptor activation of nuclear factor kB ligand(RANKL)causing ERK1/2 signalling and expression of NF-κBp65,which promotes induction of osteoclastogenesis."

关键词： ERK1/2 retention biomaterials

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新时代下的老年痴呆病

世界科学 1990年第2期 42-44页

作者： georgina Ferry ,史英辉 ,许永新

阿尔兹海默病(Alzheimer's)是一种已知几乎一个世纪的脑遇行性病变,最常见于老年人,以记忆和其它高级思维活动的严重障碍为特征,称之为老年痴呆。此病的原因和治疗尚不清楚。有两种因素使得老年痴呆病成为热门主题,一是此病患者在西方... 详细信息

阿尔兹海默病(Alzheimer's)是一种已知几乎一个世纪的脑遇行性病变,最常见于老年人,以记忆和其它高级思维活动的严重障碍为特征,称之为老年痴呆。此病的原因和治疗尚不清楚。有两种因素使得老年痴呆病成为热门主题,一是此病患者在西方世界所占比重正在增加,其中3/4在英国和美国,目前已进入60岁。到本世纪末,随着出生率的下降,人口中老年人所占的比例将上升到20%,其中至少1/20将患老年痴呆病。因素之二是出现了遗传和分子生物学技术。

关键词：老年痴呆病家族性染色体基因连锁家系调查淀粉样

Side Effects of Vincristine and L-Asparaginase in Patients with Acute Lymphoblastic Leukemia in a Mexican Pediatric Hospital

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Pharmacology & Pharmacy 2013年第3期4卷 347-354页

作者： Mario I.Ortiz Sandra Rivera-Roldan Marco A.Escamilla-Acosta georgina Romo-Hernandez Hector A.Ponce-Monter Rita Escarcega-Angeles Area Academica de Medicina Instituto de Ciencias de la SaludUniversidad Autonoma del Estado de HidalgoPachucaMexico Graduate Coordination Universidad del Futbol y Ciencias del DeporteSan Agustin TlaxiacaMexico Hospital del Nino DIF Hidalgo PachucaMexico Area Academica de Farmacia Instituto de Ciencias de la SaludUniversidad Autonoma del Estado de HidalgoPachucaMexico

Background: The treatment used to combat acute lymphoblastic leukemia (ALL) is multidrug;therefore it is important to use active pharmacovigilance to detect, assess and analyze the likely adverse reactions which may occur during the same period. Objective: To determine the frequency of adverse reactions to chemotherapeutic drugs in children with ALL. Material and Methods: Intensive pharmacovigilance was used to record the reports of adverse reactions to vincristine, L-asparaginase and the vincristine-L-asparaginase combination in children with ALL in a paediatric hospital. For each notification, the adverse reactions were analyzed in order to verify causality. Results: Forty patients were evaluated. Twenty children were female (50.0%) and 20 were male (50%). The children had a mean age, weight and height (±standard deviation: SD) of 8.1 (±3.4) years, 31.4 (±13.9) kg and 1.3 (±0.2) m, respectively. Vincristine was administered to 19 patients, vincristine plus L-asparaginase were given to 19 patients and only 2 patients used L-asparaginase. One-hundred-ninety adverse reactions were detected in the patients, with an average (±SD) of 4.8 (±2.6). Ondansetron was the drug administered for the treating of nausea and vomiting. One hundred eighty-one (95.3%) adverse reactions were identified as “definite”, 5 (2.6%) as “probable” and 4 (2.1%) as “doubtful”. Conclusions: There is a high incidence of adverse reactions by the administration of vincristine and L-asparaginase;the reactions of highest incidence were: nausea, vomiting, neutropenia, diarrhea, constipation, mucositis, headache, and abdominal pain. It is important to promote the detection, collection, reporting, assessment and treatment of ARD’s in children. It is necessary to promote the conduct further studies on pharmacovigilance with this type of treatments and to increase the duration of the studies.

关键词： Pharmacovigilance Acute Lymphoblastic Leukemia Vincristine L-Asparaginase Children