480 research outputs found

    Efecto de Epilachna Paenulata Germ. sobre el rendimiento de zapallito redondo de tronco (Cucurbita Maxima Dubch.)

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    p.97-100Se determinó en campo el efecto de distintas poblaciones de larvas de Epilachna paenulata Germ, sobre el rendimiento de zapallito redondo de tronco. Pudo comprobarse que poblaciones inferiores a 5 larvas por planta, a partir de 5 hojas verdaderas hasta cosecha, no afectan el rendimiento expresado en gramos de zapallitos por planta. También se determinó la relación entre las distintas densidades de plaga y las pérdidas y se obtuvo un modelo predictivo del rendimiento

    Development of the Integrated Model of the Automotive Product Quality Assessment

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    Issues on building an integrated model of the automotive product quality assessment are studied herein basing on widely applicable methods and models of the quality assessment. A conceptual model of the automotive product quality system meeting customer requirements has been developed. Typical characteristics of modern industrial production are an increase in the production dynamism that determines the product properties; a continuous increase in the volume of information required for decision-making, an increased role of knowledge and high technologies implementing absolutely new scientific and technical ideas. To solve the problem of increasing the automotive product quality, a conceptual structural and hierarchical model is offered to ensure its quality as a closed system with feedback between the regulatory, manufacturing, and information modules, responsible for formation of the product quality at all stages of its life cycle. The three module model of the system of the industrial product quality assurance is considered to be universal and to give the opportunity to explore processes of any complexity while solving theoretical and practical problems of the quality assessment and prediction for products for various purposes, including automotive

    Dissociation and Sexual Trauma: The Moderating Role of Somatization

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    This study examined various types of trauma, with an emphasis on sexual trauma across the lifespan, in a clinical sample of male and female adult outpatients assessed for trauma, somatization, and dissociation. Two hundred forty-five adult outpatients at the University of Tennessee Psychological Clinic were administered the Dissociative Experiences Scale (DES), the Traumatic Experiences Checklist (TEC), and Symptom Checklist-90-Revised (SCL-90-R), as part of the routine intake procedure. Of those individuals, 200 patients completed the questionnaires correctly and were included in the final study sample. The experience of sexual trauma indeed accounted for additional variance in somatization scores over and above the experience of other types of trauma, although it did not account for additional variance in dissociation scores. Also somatization was significantly correlated with dissociation. On the other hand, gender did not significantly increase the likelihood of having greater somatization. Furthermore, somatization did not significantly moderate the relationship between trauma and dissociation nor did it affect the non-significant relationship between gender and dissociation. Also, surprisingly in this sample, age of onset of sexual trauma did not significantly increase the likelihood of having greater dissociation or somatization. Finally, the experience of having a family member perpetrator did not account for additional variance in dissociation or somatization scores over and above having a non-family member perpetrator

    Relationship of Age of Onset and Other Dimensions of Trauma to Dissociation in an Adult Clinical Population

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    This study examined four dimensions of trauma and how they affected levels of dissociation in male and female adult outpatients. These dimensions are age of onset, multiple trauma, chronicity, and recency. Two hundred forty-five adult outpatients at the University of Tennessee Psychological Clinic were administered the Dissociative Experiences Scale (DES) and the Traumatic Experiences Checklist (TEC) as part of the routine intake procedure. Of those individuals, 177 patients reported trauma and were included in the final study sample. All four dimensions of trauma were found to be significantly correlated with dissociation. In addition, multiple trauma was found to be the most important factor contributing to the participants’ dissociation. An interaction was also found between age of subject at time of assessment and recency. Finally, gender moderated the effect of age of onset on dissociation scores. Ultimately multiple trauma, despite age of onset, chronicity, or recency, has the most weight when conceptualizing the complex relationship between dissociation and trauma

    Treatment of hepatitis C in injecting drug users in the Perth metropolitan area

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    This study used a sequential exploratory mixed methods research to develop a better understanding of the context of treatment intentions of IDUs living with HCV in Perth Metropolitan area. Sixty three percent of participants expressed that they had intention to uptake HCV treatment. Characteristics of treatment, stigma and lack of support emerged as factors influencing intention to uptake HCV treatment. The findings will help to make the world a better place by scaling up HCV treatment for IDUs in the community setting

    Hyaluronan Rafts on Airway Epithelial Cells

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    Many cells, including murine airway epithelial cells, respond to a variety of inflammatory stimuli by synthesizing leukocyte-adhesive hyaluronan cables that remain attached to their cell surfaces. This study shows that air-liquid interface cultures of murine airway epithelial cells (AECs) also actively synthesize and release a majority of their HA onto their ciliated apical surfaces to form a heavy chain-hyaluronan (HC-HA) matrix in the absence of inflammatory stimuli. These matrices do not resemble the rope-like HA cables, but occur in distinct sheets, or rafts, that can capture and embed leukocytes from cell suspensions. The HC-HA modification involves the transfer of heavy chains from the inter-a-inhibitor (IaI) proteoglycan, which has 2 heavy chains (HC1 and HC2) on its chondroitin sulfate (CS) chain. The tranesterification transfer of HCs from CS to HA is mediated by tumor-necrosis-factor-induced-gene 6 (TSG-6), which is upregulated in inflammatory reactions. Because the AEC cultures do not have TSG-6 nor serum, which is the source of IaI, assays for HCs and TSG-6 were done and showed that AECs synthesize TSG-6 and their own heavy chain donor (pre-IaI) with a single heavy chain 3 (HC3), which is the substrate for transfer to HA to form the H3-HA rafts. This HC3 pre-IaI is also constitutively expressed by human renal proximal tubular epithelial cells. These leukocyte adhesive HC3-HA structures were also found in the bronchoalveolar lavage (BAL) of naive mice, and were observed on their apical ciliated surfaces. Thus, these leukocyte-adhesive HA rafts are now identified as HC3-HA complexes that could be part of a host defense mechanism filling some important gaps in our current understanding of murine airway epithelial biology and secretion

    Hyaluronan Rafts on Airway Epithelial Cells

    Get PDF
    Many cells, including murine airway epithelial cells, respond to a variety of inflammatory stimuli by synthesizing leukocyte-adhesive hyaluronan cables that remain attached to their cell surfaces. This study shows that air-liquid interface cultures of murine airway epithelial cells (AECs) also actively synthesize and release a majority of their HA onto their ciliated apical surfaces to form a heavy chain-hyaluronan (HC-HA) matrix in the absence of inflammatory stimuli. These matrices do not resemble the rope-like HA cables, but occur in distinct sheets, or rafts, that can capture and embed leukocytes from cell suspensions. The HC-HA modification involves the transfer of heavy chains from the inter-a-inhibitor (IaI) proteoglycan, which has 2 heavy chains (HC1 and HC2) on its chondroitin sulfate (CS) chain. The tranesterification transfer of HCs from CS to HA is mediated by tumor-necrosis-factor-induced-gene 6 (TSG-6), which is upregulated in inflammatory reactions. Because the AEC cultures do not have TSG-6 nor serum, which is the source of IaI, assays for HCs and TSG-6 were done and showed that AECs synthesize TSG-6 and their own heavy chain donor (pre-IaI) with a single heavy chain 3 (HC3), which is the substrate for transfer to HA to form the H3-HA rafts. This HC3 pre-IaI is also constitutively expressed by human renal proximal tubular epithelial cells. These leukocyte adhesive HC3-HA structures were also found in the bronchoalveolar lavage (BAL) of naive mice, and were observed on their apical ciliated surfaces. Thus, these leukocyte-adhesive HA rafts are now identified as HC3-HA complexes that could be part of a host defense mechanism filling some important gaps in our current understanding of murine airway epithelial biology and secretion
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