Electrical transport properties of 0.5Li2O-0.5M2O-2B2O3 (M=Li, Na and K) glasses

Transparent glasses in the system 0.5Li2O-0.5M2O-2B2O3 (M=Li, Na and K) were fabricated via the conventional melt quenching technique. Amorphous and glassy nature of the samples were confirmed via the X-ray powder diffraction and the differential scanning calorimetry, respectively. The frequency and temperature dependent characteristics of the dielectric relaxation and the electrical conductivity were investigated in the 100 Hz - 10 MHz frequency range. The imaginary part of the electric modulus spectra was modeled using an approximate solution of Kohrausch-Williams-Watts relation. The stretching exponent, {\beta}, was found to be temperature independent for 0.5Li2O-0.5Na2O-2B2O3 (LNBO) glasses. The activation energy associated with DC conductivity was found to be higher (1.25eV) for 0.5Li2O-0.5K2O-2B2O3 (LKBO) glasses than that of the other glass systems under study. This could be attributed to the mixed cationic effect.Comment: 22 page

Jaunesniųjų moksleivių nerimastingumas ir jų elgesio ypatumai

The test anxiety of 68 eight-year-olds has been conducted with the help of S. B. Sarason's "The Test Anxiety Scale for Children". The peculiarities of their behaviour in stress situations at school have been studied through clinical interviews and observations. The analysis of the data obtained has confirmed our hypothesis (p<0.01) that an increase in test anxiety is related to unrealistic behaviour which is psychologically based on impulsiveness and psychological defence mechanisms, whereas a relative decrease in lest anxiety is linked with realistic behaviour which is psychologically based on will.Straipsnyje pristatomas 68 aštuonmečių nerimastingumas, naudojant S. B. Sarason „Vaikų nerimastingumo dėl kontrolinių darbų skalę“. Jų elgesio streso situacijose ypatumai buvo tiriami, naudojant klinikinius interviu ir stebėjimą. Tyrimo duomenys patvirtino hipotezę (p < 0,01), kad nerimastingumo dėl kontrolinių darbų padidėjimas siejasi su nerealistiniu elgesiu, kuris pagrįstas impulsyvumu ir gynybiniais mechanizmais, kai tuo tarpu mažesnis nerimastingumas dėl kontrolinių darbų siejasi su realistiniu elgesiu, kuris pagrįstas valia

Shrinking Cities for Economic Growth? Insights From the Housing Sector

This research focuses on examining how the pursuit of economic growth can contribute to urban shrinkage. In contrast to the prevalent definition of urban shrinkage that links population loss to insufficient levels of economic growth, this study examines the case of Coimbra, Portugal, where something different is happening. We hypothesise that Coimbra experiences population loss due to urban policies that promote economic growth through housing speculation. We conclude that the hypothesis is valid using semi-structured interviews and document analysis as data collection methods. The identified phenomenon disproportionately affects younger and vulnerable residents, forcing them to relocate due to unaffordable housing options. However, it benefits the local authority and national government, which collaborate with global economic powers that invest in real estate to accumulate capital. The conformist and legalistic-bureaucratic nature of the Portuguese planning system, evident in Coimbra's local authority, exacerbates the problem. We emphasise the potentially transformative impact of economic degrowth thinking on housing policy. The implications of this research question the validity of mainstream economic theory as commonly applied to urban planning

Hubungan Antara Paradigma Lingkungan Baru Dengan Perilaku Tanggung Jawab Lingkungan Siswa

Responsible environmental behavior is the result of interaction between various factors. One of those factors is the new environmental paradigm. This study aims to determine the relation between the new environmental paradigm to responsible environmental behavior in high school students in Jakarta. The research was conducted at Jakarta State Senior High School 53 in the first semester of the 2017/2018 Academic Year. The method used is a survey method with correlational techniques. The sample used was 89 students of class XI MIA random sampling. Data was collected using new environmental paradigm instruments and responsible environmental behavior instruments. Data analysis was done by simple linear regression test to measure the magnitude of the relation using the Pearson Product Moment formula at the 5% significance level. The results of the study show that there is a positive and significant the relation between the new environmental paradigm to responsible environmental behavior. The correlation coefficient of this study is 0.276. The contribution of the new environmental paradigm variable to responsible environmental behavior variable is 7.6%. Therefore, the environmental paradigm has a role in improving student's responsible environmental behavior. Keywords: new environmental paradigm, responsible environmental behavior, students

Détection automatique des œdèmes aigus pulmonaires de surcharge post-transfusionnels dans les dossiers patients informatisés

International audienceTransfusion-associated circulatory overload (TACO) is a serious adverse event following the transfusion of a labile blood product. Although these events must be reported, under-reporting is common. In this article, we describe the implementation of a semi-automated surveillance system based on automatic language processing of textual data from electronic health records. An algorithm detects the concepts of transfusion and pulmonary edema in the same sentence and generates an alert transmitted to the hemovigilance department. Several unreported cases of TACO were detected by this approach and confirmed after manual validation. This innovative approach is likely to help hemovigilance units detect and monitor post-transfusion adverse events.Les oedèmes aigus pulmonaires de surcharge post-transfusionnels (TACO) sont des évènements indésirables graves consécutifs à la transfusion d'un produit sanguin labile. Bien que ces évènements doivent être signalés, les sous-déclarations sont fréquentes. Dans cet article, nous décrivons l'implémentation d'un système de surveillance semi-automatisé basé sur le traitement automatique de la langue des données textuelles des dossiers patients informatisés. Un algorithme détecte les concepts de transfusion et d'oedème pulmonaire dans une même phrase et génère une alerte transmise aux hémovigilants. Plusieurs cas de TACO non signalés ont été détectés par cette approche puis confirmés après enquête d'hémovigilance. Cette approche innovante est susceptible d'aider les unités d'hémovigilance à détecter et surveiller des évènements indésirables post-transfusionnels dans les établissements

Phase separation and crystallization of La2O3 doped ZnO-B2O3-SiO2 glass

In order to investigate the effect of the La2O3 on the phase separation and crystallization of ZnO-B2O3-SiO2 glass, after the occurence of the phase separation and crystallization of glasses by heat treatment, the microstructure morphology and distribution of elements in different sample areas were characterized by the scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS); the non-isothermal crystallization kinetics of the glass samples was studied by using a differential scanning calorimeter (DSC) and the precipitated crystals of crystallized glass were determined by the X-ray diffraction (XRD). The results suggest that the phase separation and crystallization of 60ZnO-30B2O3-10SiO2 glass occur at glass surface, and the incorporation of small amount (<4 mol%) of La2O3 significantly inhibits the glass phase separation and consequently improves the thermal stability of glass. Doping of La2O3 accelerates the glass crystallization at the elevated temperature (660 °C), making the depth of crystal layer thicker and diffraction intensity in XRD patterns stronger. However, due to the precipitation of several crystals that occur simultaneously when La2O3 doping amount is 4 mol%, crystallization of the 60ZnO-30B2O3-10SiO2 glass is obviously depressed, the crystallization activation energy Ec and the relative crystallinity Xc of the glass reach the maximum and the minimum values, respectively. Although transition from one-dimensional growth of crystals to two-dimensional growth of crystals results from La2O3 addition, the one-dimensional growth of crystals remains dominant in crystallization process. This work can provide some useful information for preparing glass ceramics with nano-crystals precipitated in the glass surface

The AUGIS Survival Predictor: Prediction of Long-Term and Conditional Survival After Esophagectomy Using Random Survival Forests.

OBJECTIVE: The aim of this study was to develop a predictive model for overall survival after esophagectomy using pre/postoperative clinical data and machine learning. SUMMARY BACKGROUND DATA: For patients with esophageal cancer, accurately predicting long-term survival after esophagectomy is challenging. This study investigated survival prediction after esophagectomy using a RandomSurvival Forest (RSF) model derived from routine data from a large, well-curated, national dataset. METHODS: Patients diagnosed with esophageal adenocarcinoma or squamous cell carcinoma between 2012 and 2018 in England and Wales who underwent an esophagectomy were included. Prediction models for overall survival were developed using the RSF method and Cox regression from 41 patient and disease characteristics. Calibration and discrimination (time-dependent area under the curve) were validated internally using bootstrap resampling. RESULTS: The study analyzed 6399 patients, with 2625 deaths during follow-up. Median follow-up was 41 months. Overall survival was 47.1% at 5 years. The final RSF model included 14 variables and had excellent discrimination with a 5-year time-dependent area under the receiver operator curve of 83.9% [95% confidence interval (CI) 82.6%-84.9%], compared to 82.3% (95% CI 81.1%-83.3%) for the Cox model. The most important variables were lymph node involvement, pT stage, circumferential resection margin involvement (tumor at < 1 mm from cut edge) and age. There was a wide range of survival estimates even within TNM staging groups, with quintiles of prediction within Stage 3b ranging from 12.2% to 44.7% survival at 5 years. CONCLUSIONS: An RSF model for long-term survival after esophagectomy exhibited excellent discrimination and well-calibrated predictions. At a patient level, it provides more accuracy than TNM staging alone and could help in the delivery of tailored treatment and follow-up

A national survey of the provision of prehabilitation for oesophagogastric cancer patients in the UK

Introduction Studies have demonstrated that prehabilitation in oesophagogastric cancer (OGC) improves body composition, physical fitness and quality of life, and can reduce surgical complications. However, it is not offered in all OGC centres. Furthermore, definitions, funding and access to services vary. We conducted a survey of prehabilitation in OGC centres in England and Wales. Methods OGC centres were identified through the National Oesophago-Gastric Cancer Audit (NOGCA). Survey questions were developed, piloted in two institutions and distributed via email in October 2022. Reminder emails were sent over two months until the survey closed in December 2022. Results Responses were received from 28 of 36 centres. There was near-universal agreement that prehabilitation should be considered standard of care for patients on curative pathways (27/28; 96%). Most centres (21/28; 75%) offered prehabilitation. The majority of respondents believed that prehabilitation should commence at diagnosis (27/28; 96%) and consist of at least aerobic training and dietitian input. Most (26/28; 93%) believed access to clinical psychologists should be included; however, only 12 (43%) had access to clinical psychologists. Respondents believed prehabilitation improves quality of life (26/28; 93%), fitness (26/28; 93%), smoking cessation (28/28; 100%), surgical complication rates (25/28; 89.3%), likelihood of proceeding to surgery (25/28; 89.3%) and overall survival (20/28; 71.4%). Conclusions Despite barriers to funding and a lack of best practice guidelines, most units deliver prehabilitation. Units require higher quality evidence, consensus on the most important aspects of the intervention and core outcome sets to support the delivery of services and facilitate audit to assess the impact of their introduction