The effect of different materials joint in Vacuum Insulation Panels

During recent years the use of Vacuum Insulation Panels in buildings applications has been improved, because of their both higher performances and lower thickness compared to traditional insulation materials. These performances are due to the interior vacuum degree, which represent also the main problem connected with the applications of this technological solution in buildings constructions: to maintain the vacuum condition the panels are enclosed in an envelope layer, characterized by an higher thermal conductivity. Moreover they have to be assembled to each other or to additional different joint materials in practical building application, generating a thermal bridging effect. The aim of present work is to analyse the critical aspects related to this insulation technology for building application. An experimental campaign through heat flow meter apparatus was carried out with the purpose of assessing the decrease of performance due to the thermal bridges effects considering different joint materials in VIPs assemblies

The effect of different materials joint in Vacuum Insulation Panels

During recent years the use of Vacuum Insulation Panels in buildings applications has been improved, because of their both higher performances and lower thickness compared to traditional insulation materials. These performances are due to the interior vacuum degree, which represent also the main problem connected with the applications of this technological solution in buildings constructions: to maintain the vacuum condition the panels are enclosed in an envelope layer, characterized by an higher thermal conductivity. Moreover they have to be assembled to each other or to additional different joint materials in practical building application, generating a thermal bridging effect. The aim of present work is to analyse the critical aspects related to this insulation technology for building application. An experimental campaign through heat flow meter apparatus was carried out with the purpose of assessing the decrease of performance due to the thermal bridges effects considering different joint materials in VIPs assemblies

ESTUDIO DE UN PROTOCOLO PARA DETERMINAR AUTOXIDACION EN LIPIDOS DE PRODUCTOS DE PESCADO RIO

In Argentina, the species of freshwater river more abundant but without commercial value is the sábalo (Prochilodus platensis), for that reason have been developed technologies of use of this species. However, its higher lipid value compared to sea fish accelerates the oxidation process, affecting its properties and sensory quality. Here, a suitable methodological scheme will be implemented to evaluate the autoxidation in the fresh muscle of unprocessed sardine and its protein concentrate, both conserved at -20ºC, following the deterioration according to the peroxide index, compounds reactive to thiobarbituric acid and heminic iron. It was found that the determination of TBARS is more efficient the color development at boiling temperatures, and an increase in the concentration of the TBA reagent does not significantly improve the absorbance signal. The presence of cryoprotectants is a limitation to the TBARS technique, which causes significant interference. The heminic iron level presents a proportional decrease according to the incubation time and the cooking of the samples. The levels of peroxides in samples of fresh muscle and surimi are very low, implying that if conservation is controlled this deterioration is avoidedEn Argentina, la especie de río de agua dulce más abundante pero sin valor comercial es el sábalo (Prochilodus platensis), por este motivo se ha desarrollado tecnologías de aprovechamiento de dicha especie. Sin embargo, su valor lipídico más alto en comparación a los peces de mar, acelera el proceso de oxidación, afectando sus propiedades y su calidad sensorial. Aquí se implementará un esquema metodológico adecuado para evaluar la autoxidación en el músculo fresco de sábalo sin procesar y su concentrado proteico, ambos conservados a -20ºC, siguiendo el deterioro según el índice de peróxidos, compuestos reactivos al ácido tiobarbitúrico e hierro hemínico. Se encontró que la determinación de TBARS es más eficiente el desarrollo de color a temperaturas de ebullición, y un incremento en la concentración del reactivo TBA no mejora significativamente la señal de absorbancia. La presencia de crioprotectores es una limitante a la técnica TBARS, el cual provoca importantes interferencias. El nivel de hierro hemínico presenta una disminución proporcional según sea el tiempo de incubación y la cocción de las muestras. Los niveles de peróxidos en muestras de músculo fresco y surimi son muy bajos, implicando que si la conservación es controlada se evita este deterioro

Determinants of inappropriate acute pain management in old people unable to communicate verbally in the emergency department

Objectives: Poor pain management is relevant among individuals unable to communicate verbally (UCV). Analgesia may be due to three determinants: patients' status, physician's characteristics and pain etiology. Our aim is to investigate the association between prescription of ED pain treatment and these determinants. Materials and Methods: An observational prospective study including UCV patients was conducted. Severity of pain was evaluated by ALGOPLUS Scale and a score P â¥Â 2 out of 5 on the pain scale was retained as the threshold for the presence of acute pain in elderly UCV patients. Results: Our data showed that only 31,9% of UCV patients received a pharmacological treatment. The presence of the caregiver would influence the rate of therapy administration [OR 6,19 (95% CI 2,6â14,75)]. The presence of leg pain [OR 0,32 (95% CI 0,12â0,86)] and head pain [OR 0,29 (95% CI 0,10â0,84)] were less likely associated to receive analgesia. Pain related to trauma [OR 4.82 (95% CI 1.17 to 19.78)] and youngest physicians [OR 1.08 (95% CI 1.001 to 1.18)] were variables associated with the administration of drugs opiates. Discussion: Older UCV patients presenting to the ED with pain are at high risk of inadequate analgesia. Providers should always suspect presence of pain and an increasing need for behavioural pain evaluation is necessary for a complete assessment. Conclusions: Presence of a caregiver influences a more appropriate pain management in these patients. Staff training on pain management could result in better assessment, treatment, and interaction with caregivers. Keywords: Emergency department, Pain, Oligoanalgesi

ESTUDIO DE UN PROTOCOLO PARA DETERMINAR AUTOXIDACION EN LIPIDOS DE PRODUCTOS DE PESCADO RIO

In Argentina, the species of freshwater river more abundant but without commercial value is the sábalo (Prochilodus platensis), for that reason have been developed technologies of use of this species. However, its higher lipid value compared to sea fish accelerates the oxidation process, affecting its properties and sensory quality. Here, a suitable methodological scheme will be implemented to evaluate the autoxidation in the fresh muscle of unprocessed sardine and its protein concentrate, both conserved at -20ºC, following the deterioration according to the peroxide index, compounds reactive to thiobarbituric acid and heminic iron. It was found that the determination of TBARS is more efficient the color development at boiling temperatures, and an increase in the concentration of the TBA reagent does not significantly improve the absorbance signal. The presence of cryoprotectants is a limitation to the TBARS technique, which causes significant interference. The heminic iron level presents a proportional decrease according to the incubation time and the cooking of the samples. The levels of peroxides in samples of fresh muscle and surimi are very low, implying that if conservation is controlled this deterioration is avoidedEn Argentina, la especie de río de agua dulce más abundante pero sin valor comercial es el sábalo (Prochilodus platensis), por este motivo se ha desarrollado tecnologías de aprovechamiento de dicha especie. Sin embargo, su valor lipídico más alto en comparación a los peces de mar, acelera el proceso de oxidación, afectando sus propiedades y su calidad sensorial. Aquí se implementará un esquema metodológico adecuado para evaluar la autoxidación en el músculo fresco de sábalo sin procesar y su concentrado proteico, ambos conservados a -20ºC, siguiendo el deterioro según el índice de peróxidos, compuestos reactivos al ácido tiobarbitúrico e hierro hemínico. Se encontró que la determinación de TBARS es más eficiente el desarrollo de color a temperaturas de ebullición, y un incremento en la concentración del reactivo TBA no mejora significativamente la señal de absorbancia. La presencia de crioprotectores es una limitante a la técnica TBARS, el cual provoca importantes interferencias. El nivel de hierro hemínico presenta una disminución proporcional según sea el tiempo de incubación y la cocción de las muestras. Los niveles de peróxidos en muestras de músculo fresco y surimi son muy bajos, implicando que si la conservación es controlada se evita este deterioro

Adherence to antibiotic treatment guidelines and outcomes in the hospitalized elderly with different types of pneumonia

Background: Few studies evaluated the clinical outcomes of Community Acquired Pneumonia (CAP), Hospital-Acquired Pneumonia (HAP) and Health Care-Associated Pneumonia (HCAP) in relation to the adherence of antibiotic treatment to the guidelines of the Infectious Diseases Society of America (IDSA) and the American Thoracic Society (ATS) in hospitalized elderly people (65 years or older). Methods: Data were obtained from REPOSI, a prospective registry held in 87 Italian internal medicine and geriatric wards. Patients with a diagnosis of pneumonia (ICD-9 480-487) or prescribed with an antibiotic for pneumonia as indication were selected. The empirical antibiotic regimen was defined to be adherent to guidelines if concordant with the treatment regimens recommended by IDSA/ATS for CAP, HAP, and HCAP. Outcomes were assessed by logistic regression models. Results: A diagnosis of pneumonia was made in 317 patients. Only 38.8% of them received an empirical antibiotic regimen that was adherent to guidelines. However, no significant association was found between adherence to guidelines and outcomes. Having HAP, older age, and higher CIRS severity index were the main factors associated with in-hospital mortality. Conclusions: The adherence to antibiotic treatment guidelines was poor, particularly for HAP and HCAP, suggesting the need for more adherence to the optimal management of antibiotics in the elderly with pneumonia

LORENZATI - Doctoral thesis_Appendix

The data provides the detailed steps for the uncertainty evaluation of the Super Insulating Materials thermal conductivity (and linear thermal transmittance in case of Vaccum Insulation Panels assemblies), with all the considered uncertainty contributions

LORENZATI - Doctoral thesis_Appendix

The data provides the detailed steps for the uncertainty evaluation of the Super Insulating Materials thermal conductivity (and linear thermal transmittance in case of Vaccum Insulation Panels assemblies), with all the considered uncertainty contributions