Search results for "Strength"

Effect of Stacking Sequence and Sodium Bicarbonate Treatment on Quasi-Static and Dynamic Mechanical Properties of Flax/Jute Epoxy-Based Composites

2019

The present paper deals with the investigation of quasi-static and dynamic mechanical response of epoxy-based composites reinforced with flax and/or jute plain weave fabrics. In order to evaluate the influence of the stacking sequence, two monolithic laminates reinforced with flax or jute fibers and two hybrid flax/jute laminates were manufactured through the vacuum infusion technique. Furthermore, an eco-friendly and cost-effective surface treatment based on fiber soaking in a sodium bicarbonate solution was employed to improve the fiber-matrix adhesion. The mechanical characterization (by means of quasi-static flexural, dynamic mechanical thermal analysis and Charpy impact tests) allowed …

Genetic and environmental contributions to bone structural strength in postmenopausal women

2010

An Approach to Measuring Perceived Quality of Life in the City Through a Formative Multidimensional Perspective

2016

Cities compete to attract multinational companies, more tourism flows and to improve the quality of life of citizens. From a public service orientation, perceived quality of life should become a strategic input. In the last decades, scientists offered several alternative approaches to defining and measuring quality of life: social indicators, subjective measures and economic indices all with their strengths and weaknesses. This chapter conceptualizes and operationalizes perceived quality of life in the city from the perspective of its residents, proposing and validating a new measure with six dimensions through a formative index. The conceptual model and the hypotheses are tested using Part…

Illusion of knowledge through Facebook news? Effects of snack news in a news feed on perceived knowledge, attitude strength, and willingness for disc…

2020

Abstract Research indicates that using social network sites as a source for news increases perceived knowledge even if, objectively, people fail to acquire knowledge. This might result from the frequent repetition of topics in news posts caused by multiple news outlets posting about the same news topics and the algorithm that favors similar postings. These repeated encounters can have a positive effect on the perception of knowing more, even if actual learning hardly occurs. An experiment (N = 810, representative of German Internet users) tested these assumptions. Participants were assigned to one of four groups and received a news feed with no information, few news posts, many news posts, …

Promoting good practice in health promotion in Spain: the potential role of a new agency.

2016

AbstractHealth promotion (HP) activities should be evaluated both in terms of process and results. However there remains a lack of information regarding the types of HP community interventions that are performed in our country, which of these are based on the best available evidence, and how the evidence available can be translated into HP recommendations for action? Spain does not have a dedicated body to answer such questions. If one existed, its role should be to identify the full range of interventions available to promote health, evaluate them and, in cases where there are positive results, facilitate their transfer and implementation. The aim of this article is to reflect on the need …

From Solid Spaces To Liquid Spaces: New Ecologies of Musical Practices.

2019

Purpose: In recent years, the interest in creating new educational spaces has increased substantially, aiming to influence the methods of learning of our students and to adopt new educational strategies. This article highlights the importance of the atmosphere when remodeling musical practices. Methodologically, when transforming a space, we do not only have to improve the physical architectures but also the pedagogical ones, as well as keeping the practices consistent with these changes. The MUSICLAB CR-209 'Sound laboratory' have been built in Valencia (Spain). This is a hybrid space designed especially for collaborative projects -teachers, artists, students and researchers- in which soun…

Postoperative education concerning the use of the upper limb, and exercise and treatment of the upper limb: cross-sectional survey of 105 breast canc…

2003

In this retrospective survey we investigated the recall of breast cancer patients (n=105) 6 months after the operation concerning postoperative instructions on exercises for shoulder mobility, and instructions for oedema prevention and treatment, upper limb strength training and the use of the upper limb in daily activities. Patients also described the content in their own words and ranked the instructors who had mostly given this education. Operation type and length of hospital stay did not have any effect on the education recalled, but the age of the respondent had some effect (r=−0.23, p<0.05). The Wilcoxon signed ranks test showed that the most commonly reported item was instructions on…

Muscle strength, disability and mortality

2003

The aims of this review are to address (1) the role of muscle strength in the disablement process and (2) muscle strength as a predictor of length of life using data from prospective studies. Functional limitations, such as slow walking speed, predispose older people to disabilities. How much strength is needed for daily motor tasks such as walking varies according to other impairments present. For example, when postural balance is good, only minimum amount of strength is needed for walking. However, in the presence of balance impairment, having good level of strength may help to compensate for the deficit. Having strength well above the required level indicates reserve capacity. It was stu…

Concentric and/or Eccentric Training-Induced Alterations in Shoulder Flexor and Extensor Strength

1997

To examine the effect of specific concentric and eccentric training on muscular strength following an initial standardized period of excessive training, shoulder extensors and flexors were tested. The shoulder is a joint particularly susceptible to injury and requires a specific strength training program. For a period of 12 weeks, subjects performed training, including concentric and eccentric actions. Thereafter, they were divided into three groups that performed specific 12-week programs, including either concentric (C-E/C), eccentric (C-E/E), or a combination of both concentric and eccentric exercises (C-E/C-E). Following the initial period of training, significant increases (p0.05) in p…

Muscle hypertrophy, strength development, and serum hormones during strength training in elderly women with fibromyalgia.

2005

To examine the effects of strength training on maximal force, cross-sectional area (CSA), and electromyographic (EMG) activity of muscles and serum hormone concentrations in elderly females with fibromyalgia (FM).Twenty-six patients with FM were randomly assigned to a training (FMT; n = 13; mean age 60 years) or a control (FMC; n = 13; 59 years) group. FMT performed progressive strength training twice a week for 21 weeks. The measurements included maximal isometric and concentric leg extension forces, EMG activity of the vastus lateralis and medialis, CSA of the quadriceps femoris, and serum concentrations of testosterone (T), free testosterone (FT), growth hormone (GH), insulin-like growth…