Search results for "textiles"

Ion-exchange fibers and drugs: a transient study.

2003

The objective of this study was to theoretically model and experimentally measure the kinetics and extent of drug release from different ion-exchange materials using an in-house-designed flow-cell. Ion-exchange fibers (staple fibers and fiber cloth) were compared with commercially available ion-exchange materials (resins and gels). The functional ion-exchange groups in all the materials were weak -COOH or strong -SO3H groups. The rate and extent of drug release from the fibers (staple fiber>fiber cloth) was much higher than that from the resin or the gel. An increase in the hydrophilicity of the model drugs resulted in markedly higher rates of drug release from the fibers (nadolol>metoprolo…

Structure–property relationship and controlled drug release from multiphasic electrospun carvacrol-embedded polylactic acid/polyethylene glycol and p…

2018

Electrospinning technologies gained considerable interest over the last decade. In this study, it is proposed a systematic study of polylactic acid/polyethylene glycol (PLA/PEG) and polylactic acid/polyethylene oxide (PLA/PEO) electrospun blends at different concentrations. The effect of blend composition and PEG molecular weight on the morphological and mechanical properties of the mats was evaluated. Furthermore, the kinetic release of carvacrol as model drug in phosphate buffer saline at 37℃ was studied and the data were then fitted using an exponential model. The scanning electron microscopy revealed that the morphology of the mats was strongly dependent on the relative ratio PLA:PEG, …

Chemical composition of the essential oil of Moluccella spinosa L. (Lamiaceae) collected wild in Sicily and its activity on microorganisms affecting …

2015

In this study the chemical composition of the essential oil from aerial parts of Moluccella spinosa L. collected in Sicily was evaluated by GC and GC-MS. The main components of M. spinosa L. were α-pinene (26.6%), caryophyllene oxide (16.8%) and β-caryophyllene (8.6%). A comparison with other studied oils of genus Moluccella is made. Antibacterial and antifungal activities against some microorganisms infesting historical textiles were also determined.

SIGNA VETUSTA MANENT. Interventi di conservazione e restauro su materiale codicologico musicologico archivistico e librario dei secoli XII - XVIII (2…

2014

“Iugalia aurea et argentea et bona mobilia”. Postille documentarie sui Ventimiglia di Gratteri

2019

Numerosi inventari, atti dotali, testamenti e donazioni rintracciati presso l’Archivio di Stato di Palermo permettono di ricostruire la ricchezza e la varietà del patrimonio artistico della famiglia Ventimiglia del ramo di Gratteri. Numerous inventories, doctrinal deeds, wills and donations found at the State Archives of Palermo make it possible to reconstruct the wealth and variety of the artistic heritage of the Ventimiglia family of the Gratteri branch.

Continuous Microfiber Wire Mandrel‐Less Biofabrication for Soft Tissue Engineering Applications

2022

Suture materials are the most common bioimplants in surgical and clinical practice, playing a crucial role in wound healing and tendon and ligament repair. Despite the assortment available on the market, sutures are still affected by significant disadvantages, including failure in mimicking the mechanical properties of the tissue, excessive fibrosis, and inflammation. This study introduces a mandrel-less electrodeposition apparatus to fabricate continuous microfiber wires of indefinite length. The mandrel-less biofabrication produces wires, potentially used as medical fibers, with different microfiber bundles, that imitate the hierarchical organization of native tissues, and tailored mechan…

Precios y calidad de las importaciones españolas de productos textiles

1999

Este trabajo tiene el objetivo de estudiar los niveles relativos de precios y calidad de las importaciones españolas de productos textiles según su origen geográfico; para ello, se calculan índices translog de precios que permiten atribuir las diferencias en el valor unitario de los flujos de importación a los distintos niveles de calidad de los productos que los integran y a diferencias en sus precios. El análisis se lleva a cabo para el período 1993-1997, con una desagregación de seis dígitos de la Nomenclatura Combinada y datos de EUROSTAT. Se obtiene que las diferencias en los valores unitarios de las importaciones españolas según su origen son muy notables, correspondiendo los mayores …

Der Import exotischer Textilien nach Rom

2013

Se trata de un estudio redactado junto con una colega alemana acerca de la importación de piezas textiles y de materias primas textiles procedentes de regiones lejanas (por ejemplo, de la región del océano Índico) en la antigua Roma.

Luxuria et mollitia: Rome’s textile raw material trade with the East

2014

A partir del Principado de Augusto, el Imperio romano comenzó a importar grandes cantidades de materias primas textiles y de tintes de lujo (luxuria) procedente de la India y de China. Este comercio provocó una reacción moralizante por parte de varios escritores, que vieron en la llegada de dichos productos un factor de afeminación de su sociedad (mollitia). From the Principate of Augustus onward, the Roman Empire began to import large quantities of textile raw materials as well as of luxury dyes (luxuria) from India and China. This trade caused a moralistic reaction by several writers, who saw in the arrival of these goods a factor of effeminacy of their society (mollitia).

Effects of different lower-limb sensory stimulation strategies on postural regulation-a Systematic review and metaanalysis

2017

Systematic reviews of balance control have tended to only focus on the effects of single lower-limb stimulation strategies, and a current limitation is the lack of comparison between different relevant stimulation strategies. The aim of this systematic review and meta-analysis was to examine evidence of effects of different lower-limb sensory stimulation strategies on postural regulation and stability. Moderate- to high-pooled effect sizes (Unbiased (Hedges' g) standardized mean differences (SMD) = 0.31-0.66) were observed with the addition of noise in a Stochastic Resonance Stimulation Strategy (SRSS), in three populations (i.e., healthy young adults, older adults, and individuals with low…