Search results for "45"

The assessment of the reliability of an innovative 3rd generation solar cell integrated with “thermal belt” glass block

2017

Glass block is a building product widely used for the construction of translucent building façades and roofs. The need to adapt the product to the regulations in the field of energy saving and environmental sustainability has led to the design of innovative configurations, through the integration of different sub-components. These ones are able to improve its energy performance by means of the integration of a“thermal belt”, cold glued to the glass shells, which constitute the traditional glass block, and 3rd generation solar cells. This paper reports the first results of the experimental program designed to assess some durability components: inherent and critical reliability. <div id="g…

Stillage as a Source of Growth Promoting Biofactors and a Stimulator of Levan and Extracellular Levansucrase Synthesis for Zymomonas mobilis

2002

In the present work, the fermentation of simultaneous production of ethanol and levan by Zymomonas mobilis grown on different growth media has been studied. Yeast extract, rye stillage or sugar beet molasses stillage were used as additives to the basic sucrose media and the chemical composition, including vitamins, of the cultivation liquids have been determined. It has been shown that 0.5 % of yeast extract dry weight additive could be substituted by 10.0 % of native stillage additive. It was established that molasses stillage stimulates the ethanol synthesis, but rye stillage additive is more preferable for levan production. The extracellular levansucrase obtained from the culture liquid …

Effect of Oxidized Potato Starch on the Physicochemical Properties of Soy Protein Isolate-Based Edible Films

2013

The influence of oxidized starch on the physicochemical properties of cast soy protein isolate films is determined in this study. Films were cast from heated (70 °C for 20 min) alkaline (pH=10) aqueous solutions of 7 % soy protein isolate containing 50 % (by mass) glycerol as a plasticizer and different levels of added oxidized starch (0, 5, 10, 15, and 20 %, by mass). For all types of films, opacity, contact angle, tensile strength, elongation at break, water vapour permeability, measured at 25 °C for four relative humidity differentials (30–53, 30–75, 30–84 and 30–100 %), differential scanning calorimetry and microstructure were determined after conditioning film specimens at 25 °C and 30…

Congreso de Jóvenes Investigadores/as I. "Espacio, redes y cultura en un mundo globalizado". Valencia, 22-23 de febrero de 2018

2018

Comparison of Immunosuppressive and Angiogenic Properties of Human Amnion-Derived Mesenchymal Stem Cells between 2D and 3D Culture Systems

2019

The secretion of potential therapeutic factors by mesenchymal stem cells (MSCs) has aroused much interest given the benefits that it can bring in the field of regenerative medicine. Indeed, the in vitro multipotency of these cells and the secretive capacity of both angiogenic and immunomodulatory factors suggest a role in tissue repair and regeneration. However, during culture, MSCs rapidly lose the expression of key transcription factors associated with multipotency and self-renewal, as well as the ability to produce functional paracrine factors. In our study, we show that a three-dimensional (3D) culture method is effective to induce MSC spheroid formation, to maintain the multipotency an…

Neural Stem Cells in the Adult Brain: From Benchside to Clinic

2012

Increasing evidence indicates that neural stem cells (NSCs) play an important role in sustaining cellular homeostasis and brain tissue restoration. The study of all mechanisms that control and modulate the function of NSC is a crucial step for the design of therapies against chronic neurodegenerative processes. In this special issue of the journal, we had the pleasure to edit the topic entitled “Neural Stem Cells in the Adult Brain: From Benchside to Clinic.” This special compilation of paper was aimed to provide a global forum for publications of original peer-reviewed manuscripts that reported original research findings in the field of adult neural stem cell, including short communication…

Vγ9Vδ2 T cells as a promising innovative tool for immunotherapy of hematologic malignancies

2011

The potent anti-tumor activities of γδ T cells, their ability to produce pro-inflammatory cytokines, and their strong cytolytic activity have prompted the development of protocols in which γδ agonists or ex vivo-expanded γδ cells are administered to tumor patients. γδ T cells can be selectively activated by either synthetic phosphoantigens or by drugs that enhance their accumulation into stressed cells as aminobisphosphonates, thus offering new avenues for the development of γδ T cell-based immunotherapies. The recent development of small drugs selectively activating Vγ9Vδ2 T lymphocytes, which upregulate the endogenous phosphoantigens, has enabled the investigators to design the experiment…

Low molecular weight heparins in cancer patients: to treat thromboembolic events, the tumor, or both?

2011

The interrelationship between cancer and thrombosis is well known. Recent data help physicians to optimize the management of thrombotic complications occurring in cancer patients. However, many issues are still uncertain. First, although the development of venous thromboembolism (VTE) in a patient with known cancer is the most common presentation, concerns remain about the optimal duration and dosages of anticoagulants. Questions also arise concerning the need to implement heparin prophylaxis in the course of chemotherapy. Secondly, in some patients, thrombosis precedes the diagnosis of malignancy. In this case, the question is whether or not to screen patients for an occult cancer. Thirdly…

Overweight Adolescents’ Self-Perceived Weight and Weight Control Behaviour: HBSC Study in Finland 1994–2010

2012

Introduction. Overweight and perception of being overweight, may lead adolescent to lose weight. The aim of the present study was to investigate overweight adolescents’ self-perceived weight, body dissatisfaction, and weight control behaviour during 1994–2010 in Finland.Methods. The country-representative, cross-sectional data of 15-year olds were obtained from the Health Behaviour in School-aged Children (HBSC) study, conducted in 1994 (; males: 48%), 1998 (; 49%), 2002 (; 50%), 2006 (; 47%), and 2010 (; 48%).Results. The majority of overweight boys (62–69%) and girls (89–100%) assessed themselves as too fat, and their body image was lower than in nonoverweight adolescents. The highest pre…

Advanced chronic kidney disease. Association between anxiety, depression and resilience

2019

Resumen Introducción: el padecimiento de la enfermedad renal crónica avanzada (ERCA) se asocia con una mayor probabilidad de padecer sintomatología depresiva y ansiosa. No obstante, la resiliencia puede amortiguar estos efectos. El objetivo general fue valorar la sintomatología ansiosa, depresiva y la resiliencia de los pacientes con ERCA. Métodos: 70 pacientes (80 % varones), con edades entre 38-88 años (M=68,88; DT= 9,98) fueron evaluados mediante la Escala Hospitalaria de Ansiedad y Depresión y la de Resiliencia de Connor Davidson. Se realizaron análisis descriptivos, pruebas t, d de Cohen y correlaciones de Pearson. Resultados: un 41,79 % presentó sintomatología ansiosa y un 25,38 % dep…