Engineering

Social capital and the utilization of maternal and child health services in India: A multilevel analysis
This study examines the association between social capital and the utilization of antenatal care, professional delivery care, and childhood immunizations using a multilevel analytic sample of 10,739 women who recently gave birth and 7403 children between one and five years of age in 2293 communities and 22 state-groups from the 2005 India Human Development Survey. Exploratory factor analysis wa...


Ultrasound Effect on Neural Differentiation of Gingival Stem/Progenitor Cells
Dental pulp loss due to caries or pulpitis can affect the longevity of teeth. Dental pulp tissue engineering necessitates the use of progenitor cells that has the potential to differentiate into neural, vascular and odontoblasts like cells. Previous reports have shown that human gingival progenitor cells (HGPCs) can be differentiated into different cell types; however neural differentiation of ...
Computational modeling of vibration-induced systemic hydration of vocal folds over a range of phonation conditions
Predicting phonation conditions that are benign to voice health remains a biomechanically relevant problem. Our objective is to provide insight into vocal fold (VF) hydration based on continuum-based VF models that are able to compute VF stresses during phonation and a scheme for the extraction and generalization of such computational data based on the principle of linear superposition. Because...


Development of a mitigation strategy against the cascading propagation of risk in R&D network
Considering severe consequences caused by cascading propagation of risk to R&D network, it is essential to develop a mitigation strategy against it for keeping network safety. Firstly, we propose the generation algorithm of R&D network based on two rules of preferential attachment. Then we develop a mitigation strategy on restoring failed firms against cascading propagation of r...
Economic recession and a crisis of regulation in safety–critical industries
Some states have knowledgeable and competent regulators. Others are less fortunate. The operation and management of safety industries depends upon individuals who are often poorly paid compared to their colleagues in the private sector. In consequence, some regulators lack the experience, motivation and insight needed to guide safety–critical industries. Further problems are created by the in...


Structural limits of FRP-balsa sandwich decks in bridge construction
The span limits of two glass fiber-reinforced polymer (GFRP) bridge concepts involving GFRP-balsa sandwich plates are discussed. The sandwich plates were either used directly as slab bridges or as decks of a hybrid sandwich-steel girder bridges. In the latter case, the potential of the sandwich decks to replace reinforced concrete (RC) decks was also evaluated. Taking the limits of manufacturin...
Flame retardancy and thermal stability of organic–inorganic hybrid resins based on polyhedral oligomeric silsesquioxanes and montmorillonite clay
Organic–inorganic hybrids were prepared by incorporation of two polyhedral oligomeric silsesquioxanes, trisilanolisobutyl POSS (TSP) and isobutylAluminum POMS (AlP), and an organoclay (OC), in an epoxy–amine system. Differential scanning calorimetry revealed the great catalytic power of AlP. OC also showed catalytic power, but to a lesser extent. The storage modulus increased with lower POS...

Anchorage resistance of CFRP strips externally bonded to various cementitious substrates
This paper presents a study on the anchorage capacity of Carbon Fiber Reinforced Polymer (CFRP) strips bonded to a cementitious substrate used for concrete surface reprofiling. The structural strengthening of a large-scale prestressed concrete girder in the framework of a bridge retrofitting project by means of prestressed CFRP strips required the levelling of an initial negative camber of abou...
Flexural gravity wave scattering by a nearly vertical porous wall
Two-dimensional linear flexural gravity wave scattering by a nearly vertical porous wall is analyzed through a simplified perturbational analysis. A continuous semi-infinite ice sheet of uniform thickness is assumed to be floating over water of infinite depth. The ice sheet, with inclusion or exclusion of compressive stress, has either a free edge or a clamped edge at the porous wall. The first...

Prognostic value of ezrin expression in common epithelial tumors: An immunohistochemical study
Ezrin is a member of the ezrin–radixin–moesin family of proteins. Overexpression of ezrin protein might play an important role in the process of tumor cell invasion and metastasis. Non-melanoma skin cancer (NMSC) is the most common form of cancer seen in population. The term NMSC can theoretically be applied to all cutaneous cancers excluding melanoma. The aim of the study was to evaluate t...
Morphology, ultrastructure and immunocytochemistry of Hypnea cervicornis and Hypnea musciformis (Hypneaceae, Rhodophyta) from the coastal waters of Ceará, Brazil
Based on their morphological and physiological features, red algae comprise a complex and variable group of multiple genera, including Hypnea. In particular, the genus Hypnea J. V. Lamouroux (Cystocloniaceae, Rhodophyta) consists of approximately 54 species, including Hypnea cervicornis and H. musciformis. Lectins were described for both species; however, the localization of these proteins is s...

Evaluation of the possible protective role of vitamin A on methotrexate-induced changes on the jejunal mucosa of adult male albino rat: Histological and immunohistochemical study
Methotrexate (MTX), a folic acid antagonist agent, is mainly used in treatment of malignant tumors and autoimmune diseases. Vitamin A is essential for normal growth and differentiation of epithelial tissues. The aim of this study was to evaluate the effect of methotrexate on the histological structure of jejunal mucosa and to assess the possible protective role of vitamin A. Fifty adult male al...
Hierarchical assembly of graphene/polyaniline nanostructures to synthesize free- standing supercapacitor electrode
Free-standing composite films based on graphene/polyaniline (PANI) nanostructure were synthesized for supercapacitor application. First, polyaniline nanospheres were prepared by microemulsion polymerization, followed by the incorporation of graphene oxide nanosheets by hierarchical organization. The cationic PANI nanospheres were attached to the anionic GO sheets by electrostatic interaction an...
Observations of damage development from compression-after-impact experiments using ex situ micro-focus computed tomography
The development of damage mechanisms leading up to compression-after-impact (CAI) failure is studied in particle-toughened and untoughened systems. Microfocus computed tomography (μCT) enabled non-destructive monitoring of the internal damage development in three-dimensions (3D) by taking scans after impact, after an application of near failure compression loads and after coupon failure. In co...
Propuesta y validación de un algoritmo Simulated annealing modificado para la solución de problemas de optimización
Durante las últimas décadas, los métodos de optimización heurísticos basados en imitar procesos naturales, biológicos, sociales o culturales a nivel computacional han despertado el interés de la comunidad científica debido a su capacidad para explorar eficientemente espacios de soluciones multimodales y multidimensionales. A pesar de todos los trabajos publicados en la literatura intern...