Effect of Astragalus membranaceus (Fisch) Bunge extract on streptozocin-induced diabetic in rats

Purpose: To investigate the effect of Astragalus membranaceus (Fisch.) Bunge. extract (AMBE) on streptozotocin-induced diabetic rats. Methods: The aqueous extract of AMB was obtained by steeping the dried Astragalus membranaceus (Fisch.) Bunge. in water at 60 oC three times, each for 1 h, before first drying in an oven at 100 oC and then freeze-drying the last extract thus obtained. Diabete model rats was induced by a single intraperitoneal injection of a freshly prepared solution of streptozotocin (50 mg/kg). The rats were randomly divided into 6 groups of ten rats each: negative control group, normal control group, reference group (glibenclamide1 mg/kgbody weight) as well as AMB extract groups, namely, 40, 80 and 160 mg/kg body weight. Antihyperglycemic effect was measured by blood glucose and plasma insulin levels. Oxidative stress was evaluated in liver and kidney by antioxidant markers, viz, lipidperoxidation (LPO), superoxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GPx) and catalase (CAT), while blood serum levels of creatinine and urea were also determined in both diabetic control and treated rats. Results: Compared with diabetic rats, oral administration of AMBE at a concentration of 160 mg/kg daily for 30 days showed a significant decrease in fasting blood glucose (109.438 ± 3.52, p < 0.05) and increased insulin level (13.96 ± 0.74, p < 0.05). Furthermore, it significantly reduced biochemical parameters (serum creatinine, 0.86 ± 0.29, p < 0.05) and serum urea (45.14 ± 1.79, p < 0.05). The treatment also resulted in significant increase in GSH (49.21 ± 2.59, p < 0.05), GPx (11.96 ± 1.16, p < 0.05), SOD (14.13 ± 0.49, p < 0.05), CAT (83.25 ± 3.14, p < 0.05) level in the liver and kidney of diabetic rats. Conclusion: The results suggest that AMBE may effectively normalize impaired antioxidant status in streptozotocin-induced diabetes in a dose-dependent manner. AMBE has a protective effect against lipid peroxidation by scavenging free radicals and is thus capable of reducing the risk of diabetic complications.

Anti-osteoporosis activity of Astragalus membranaceus Bunge extract in experimental rats

Purpose: To investigate the anti-osteoporosis effect of Astragalus membranaceus (Fisch.) Bunge. extract (AMBE) in experimental rats. Method: Female Sprague-Dawley rats were randomly divided into six groups: control group, ovariectomy (OVX) with vehicle group, OVX with 17β-estradiol (E2, 25 μg/kg/day) group, and OVX with AMBE doses (60, 120 and 240 mg/kg/day) groups. Daily oral administration of AMBE or E2 was started 4 weeks after OVX and lasted for 16 weeks. The bone mineral density (BMD) of L4 vertebrae and right femurs was evaluated. The length of each femur was measured with a micrometer, and the center of diaphysis was determined. Three representative L4 vertebrae were selected to evaluate trabecular microarchitecture. Serum alkaline phosphatase (ALP), urinary calcium (U-Ca), urinary phosphorus (UP), urinary creatinine (Cr) and osteocalcin (OC) levels were measured. Results: AMBE dose-dependently inhibited the bone mineral density (BMD) reduction of L4 vertebrae (0.27 ± 0.03 g/cm2, p < 0.05) and femurs (0.23 ± 0.03 g/cm2, p < 0.05) caused by OVX and prevented the deterioration of trabecular microarchitecture (p < 0.05), which were accompanied by a significant decrease in skeletal remodeling (p < 0.05) as evidenced by the lower levels of bone turnover markers. A higher dosage of AMBE treatment (240 mg/kg/day) increased U-Ca/Cr (0.27 ± 0.03 mmol/mmol), ALP (137.23 ± 16.72 U/L), U-P/Cr (4.18 ± 0.27 mmol/mmol) and OC (8.47 ± 0.26 mmol/L) levels (both p < 0.05). Conclusion: The findings of this study indicate that AMBE prevents OVX-induced osteoporosis in rats.

TRIBUNAL ARBITRAL DE MARIO RODRÍGUEZ ESCALLÓN Y LUZ HELENA RESTREPO MARÍN VS. TRANSPORTE ZONAL INTEGRADO S.A.S. (TRANZIT S.A.S.)

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Entre la tradición y el cambio: Evolución tecnológica de la caficultura costarricense. Mario Samper, Carlos Naranjo y Paul Sfez

Introducción Entre la Tradición y el Cambio: Evolución tecnológica de la caficultura costarricense, está orientado a satisfacer las necesidades diversas de un círculo amplio de lectores, desde el estudioso de la historia agraria que pretende obtener una síntesis interpretativa del desarrollo cafetalero costarricense hasta los diferentes sectores productivos involucrados con las faenas diarias de la caficultura. Esta característica divulgativa al gran público pone en manifiesto uno de los objetivos del quehacer universitario, devolver a los protagonistas que han construido la historia nacional las experiencias y conocimientos sobre la actividad productiva…

“Cultura y clase trabajadora, a propósito de ‘Artesanos y obreros costarricenses 1880- 1914', de Mario Oliva Medina”

Introducción:Si la historia económica se ha venido desarrollando sistemáticamente en nuestro país desde hace poco más de una década, no es menos cierto que la historia socual recién comienza a dar sus primeros pasos. Una de sus vertienetes, aquella relacionada con la historia del movimiento obrero, viene tomando un auge inusitado. Es indudable que le fomento sistemático de la investigación y de medios de difusión de pensamiento histórico producido, son factores que han contribuido decisivamente a acelerar este proceso...

Los escritos de Fray Pablo de Rebullioda. Recopilación y transcripción de Mario Humbero Ruz

IntroducciónJesús, María y JoséLa gran majestad del altísimo Dios quiera que al recibido de ésta halle a vuestra paternidad con entera salud para amarle y servirle. Yo, al presente, la tengo buena para lo que me quisiere mandar.Estando prosiguiendo la convesión de los chánguenes trajéronme los térrabas un papel blanco sin habler escrito en él, diciéndome que los borucas se lo habían dado. Yo he juzgado que querían saber la verdad si los indios me han mierto o qué mi persona después me quedé solo.Proseguí los dictámenes de la obediencia y a donde pensaba hallar 300 indios encontré con 1800 infieles...

THE DIALOGIC EROTISM IN MARIO VARGAS LLOSA’S BOOK GREETINGS TO THE STEPMOTHER

Abstract: Using studies about erotism (Bataille, Baudrillard and Maingueneau) and dialogism explored by Bakhtin, we proposed to analyze the parafrastic dialogic mechanism which is focused by Fucs and Afonso Romano de Sant’Anna. We aimed to research the Mario Vargas LLosa’s book Greetings to the Stepmother. In this book, verbal and visual establish an insistent dialogue, due to the fact that every two chapters are opened by a classical painting. This painting is a summing and anticipating paraphrase of the verbal conditional which is coming after and it places a fundamental role Llosa’s production since the reiteration of the same – different languages but with the same sense – is the way through which the book goes on.   Keywords: Erotism. Seduction. Dialogism.  

A HISTÓRIA NA FICÇÃO DE JOSÉ SARAMAGO E MARIO VARGAS LLOSA: CONFLUÊNCIAS E DIVERGÊNCIAS

Este estudo tem por objetivo estabelecer a comparação da construção do discurso ficcional nos romances A história do cerco de Lisboa (1989) de José Saramago e El paraíso en la otra esquina (2003) de Mario Vargas Llosa, obras que dialogam diretamente com o discurso da história. Evidenciamos o procedimento da intertextualidade que ocorre entre estes discursos, possibilitando uma aproximação entre ficção e história. Na obra de Saramago podemos notar como o narrador explicita a construção tanto do discurso da ficção como do histórico, ao relatar a trajetória fictícia de Raimundo Silva. Já na obra de Vargas Llosa o diálogo com o discurso historiográfico ocorre na reconstrução da história de vida da feminista Flora Tristán (1803-1844) e de seu neto Paul Gauguin (1848-1903), famoso por suas pinturas consideradas exóticas. Apesar de Saramago e Vargas Llosa fazerem parte de cânones literários diferentes, é possível constatar uma confluência entre os autores na sua produção ficcional.

Using ontology for the representational analysis of process modelling techniques

Selecting an appropriate business process modelling technique forms an important task within the methodological challenges of a business process management project. While a plethora of available techniques has been developed over the last decades, there is an obvious shortage of well-accepted reference frameworks that can be used to evaluate and compare the capabilities of the different techniques. Academic progress has been made at least in the area of representational analyses that use ontology as a benchmark for such evaluations. This paper reflects on the comprehensive experiences with the application of a model based on the Bunge ontology in this context. A brief overview of the underlying research model characterizes the different steps in such a research project. A comparative summary of previous representational analyses of process modelling techniques over time gives insights into the relative maturity of selected process modelling techniques. Based on these experiences suggestions are made as to where ontology-based representational analyses could be further developed and what limitations are inherent to such analyses.

The necessary alignment between technology innovation effectiveness and operational effectiveness

Organisations are increasingly investing in complex technological innovations such as enterprise information systems with the aim of improving the operations of the business, and in this way gaining competitive advantage. However, the implementation of technological innovations tends to have an excessive focus on either technology innovation effectiveness (also known as system effectiveness), or the resulting operational effectiveness; focusing on either one of them is detrimental to the long-term enterprise benefits through failure to achieve the real value of technological innovations. The lack of research on the dimensions and performance objectives that organisations must be focusing on is the main reason for this misalignment. This research uses a combination of qualitative and quantitative, three-stage methodological approach. Initial findings suggest that factors such as quality of information from technology innovation effectiveness, and quality and speed from operational effectiveness are important and significantly well correlated factors that promote the alignment between technology innovation effectiveness and operational effectiveness.

The role of relational capabilities in developing the capacity for supply chain innovation

The purpose of this paper is to gain a better understanding of the types of relational capabilities supply chain participants develop to enable ongoing supply chain innovation capacity building that produces improved business outcomes. This is exploratory research using qualitative data gathered by using five interviews, with the Australian road freight industry as the context. Two key relational capabilities and the improvement of four key business outcomes were identified as being present in the interaction of freight transport service providers with members of their supply chain. The data also demonstrates that by entering into competence building relationships with customers and suppliers firms can build capabilities that will increase their capacity for supply chain innovation. Even in short term arm’s length relationships firms can acquire improved skills behaviours and practices that enhance their operation effectiveness and the efficiency of the supply chain relationships.

Performance measurement and feedback in a public sector program

Establishing a framework for measuring the performance of public sector programs is fraught with dangers. Many public sector organisations are satisfied with measuring activity in programs and fail to see the need for establishing a framework that will meet the needs of participants and measure outcomes as well as activities. This paper explores how a government department in Queensland went about establishing a performance management framework to measure the outcomes and activities in a program that was a public private partnership. Findings indicate that using an iterative consultative approach performance measure can be put in place that are meaningful and assist the participants to review the program.

The critical competences needed for innovative organizational inter-firm and intra-firm integration

In today's highly challenging business environment, an innovative and systemic approach is imperative to survival and growth. Organisational integration and technological integration, are often seen as a catalyst of change that could lead to significant improvements in organisations. The levels of improvement in inter and intra firm integration should arise from a detailed understanding and development of competences within and between organisations. Preliminary findings suggest that lack of trust across organisational cultures within the firms has a negative influence on the development of the capabilities to integrate and align technological innovations and hinders implementation and the effectiveness of the operations. Additionally, poor communication and conflict effects customer satisfaction. Firms need to transfer the competences that support cooperative integration, developed through interaction with supply chain partners, to their relationship arrangements with other supply chain partners, as these are key to ensuring low operational costs.

Resistance training for obese, type 2 diabetic adults: A review of the evidence

In both developed and developing countries, increased prevalence of obesity has been strongly associated with increased incidence of type 2 diabetes mellitus (T2DM) in the adult population. Previous research has emphasized the importance of physical activity in the prevention and management of obesity and T2DM, and generic exercise guidelines originally developed for the wider population have been adapted for these specific populations. However, the guidelines traditionally focus on aerobic training without due consideration to other exercise modalities. Recent reviews on resistance training in the T2DM population have not compared this modality with others including aerobic training, or considered the implications of resistance training for individuals suffering from both obesity and T2DM. In short, the optimal mix of exercise modalities in the prescription of exercise has not been identified for it benefits to the metabolic, body composition and muscular health markers common in obesity and T2DM. Similarly, the underlying physical, social and psychological barriers to adopting and maintaining exercise, with the potential to undermine the efficacy of exercise interventions, have not been addressed in earlier reviews. Because it is well established that aerobic exercise has profound effects on obesity and T2DM risk, the purpose of this review was to address the importance of resistance training to obese adults with T2DM.

Supply chain collaboration : capabilities for continuous innovation

Purpose – The purpose of this study is to investigate how collaborative relationships enhance continuous innovation in the supply chain using case studies. Design/methodology/approach – The data were collected from semi-structured interviews with 23 managers in ten case studies. The main intention was to comprehend how these firms engaged in collaborative relationships and their importance for successful innovation. The study adopted a qualitative approach to investigating these factors. Findings – The findings demonstrate how differing relationships can impact on the operation of firms and their capacities to innovate. The ability to work together with partners has enabled firms to integrate and link operations for increased effectiveness as well as embark on both radical and incremental innovation. Research limitations/implications – The research into the initiatives and strategies for collaboration was essentially exploratory. A qualitative approach using case studies acknowledged that the responses from managers were difficult to quantify or gauge the extent of these factors. Practical implications – The findings have shown various methods where firms integrated with customers and suppliers in the supply chain. This was evident in the views of managers across all the firms examined, supporting the importance of collaboration and efficient allocation of resources throughout the supply chain. They were able to set procedures in their dealings with partners, sharing knowledge and processes, and subsequently joint-planning and investing with them for better operations, systems and processes in the supply chain. Originality/value – The case studies serve as examples for managers in logistics organisation who are contemplating strategies and issues on collaborative relationships. The study provides important lessons on how such relationships can impact on the operation of firms and their capability to innovate. Keywords Supply chain management, Innovation, Relationship marketing