Memos : On Fashion in This Millennium

\uabMemos. On Fashion in This Millennium\ubb is a reflection on design, a reactivation of repetitions, a stratification of temporalities, a constellation of arguments and theses, an incomplete list, a series of notes, digressions and scribbles, a map of allusions and obstacles. An inventory of oversights. A work in progress. A notebook that takes the form of an exhibition, along with a book that is offered as a summary of attitudes and methods, of conversations, memories and researches that are still under way. The project stems from a recent reassessment of Italo Calvino stimulated by a general revival of interest in his work, and more precisely from an illuminating rereading of the "Six Memos for the Next Millennium", the series of lectures that the writer was supposed to give for the Charles Eliot Norton Poetry Lectures at Harvard University in the academic year 1985/86

Techno-economic evaluation of reducing shielding gas consumption in GMAW whilst maintaining weld quality

A new method of supplying shielding gases in an alternating manner has been developed to enhance the efficiency of conventional gas metal arc welding (GMAW). However, the available literature on this advanced joining process is very sparse and no cost evaluation has been reported to date. In simple terms, the new method involves discretely supplying two different shielding gases to the weld pool at predetermined frequencies which creates a dynamic action within the liquid pool. In order to assess the potential benefits of this new method from a technical and cost perspective, a comparison has been drawn between the standard shielding gas composition of Ar/20%CO2, which is commonly used in UK and European shipbuilding industries for carbon steels, and a range of four different frequencies alternating between Ar/20%CO2 and helium. The beneficial effects of supplying the weld shielding gases in an alternating manner were found to provide attractive benefits for the manufacturing community. For example, the present study showed that compared with conventional GMAW, a 17 per cent reduction in total welding cost was achieved in the case of the alternating gas method and savings associated with a reduction in the extent of post-weld straightening following plate distortion were also identified. Also, the mechanical properties of the alternating case highlighted some marginal improvements in strength and Charpy impact toughness which were attributed to a more refined weld microstructure

COVID-19 vaccine acceptability and determinants among pregnant mothers attending antenatal care services at Debre Markos town public health institutions, Debre Markos Northwest Ethiopia: Mixed study

Introduction: Coronavirus is a communicable disease that produces severe morbidity and mortality in the globe and more than three million people died due to COVID-19. Pregnant mothers are at higher risk of COVID-19 viral infection, with great morbidity and mortality. Thus, the purpose of this research is to assess the level of COVID-19 vaccine acceptability, determinants, and hesitancy among pregnant mothers attending antenatal care at Debre Markos town, public health institutions, Debre Markos, Northwest Ethiopia. Methods: A mixed study was conducted among 350 pregnant mothers attending antenatal care at Debre Markos town health institutions and the participants were selected by consecutive sampling techniques. The collected data were entered into EPI Info version 7 and then exported to SPSS version 25 for data cleaning and analysis. The level of COVID-19 vaccine acceptability was determined through descriptive statistics, whereas its determinants were identified by binary logistic regression analyses. Variables with p-value < 0.05 in multivariable were considered as significantly associated factors. The qualitative data were collected by an unstructured interviewer guide using in-depth interview data collection methods. Study participants were selected purposively until the required data was saturated. The data was analysed under selected themes based on the guide and summarized manually. Results: Sixty five (18.5%) of the respondents accept the COVID-19 vaccine [95% CI: 13, 23]. Maternal age [AOR: 3.281 (95% CI: 1.184, 9.092)], chronic medical illness [AOR: 0.170 (95% CI: 0.051,.562)], information about COVID-19 vaccine [AOR: 4.063 (95% CI: 1.462, 11.293)], pregnancy-induced medical conditions [AOR: 4.131 (95% CI: 1.055, 16.183) were identified as significant determinants of COVID-19 vaccine acceptability. From the quantitative wing. The qualitative finding implied that misconception, fear of medical complications, lack of trust in its effectiveness, and religious constraints were the common reasons for vaccine hesitancy. Conclusion: COVID-19 vaccine acceptability by pregnant mothers attending ANC at Debre Markos town public health institutions is very low. The health care providers and health extension workers shall create information about the COVID-19 vaccine on its importance and side effects

Absolute calibration of Analog Detectors using Stimulated Parametric Down Conversion

Spontaneous parametric down conversion has been largely exploited as a tool for absolute calibration of photon counting detectors, photomultiplier tubes or avalanche photodiodes working in Geiger regime. In this work we investigate the extension of this technique from very low photon flux of photon counting regime to the absolute calibration of analog photodetectors at higher photon flux. Moving toward higher photon rate, i.e. at high gain regime, with the spontaneous parametric down conversion shows intrinsic limitations of the method, while the stimulated parametric down conversion process, where a seed beam properly injected into the crystal in order to increase the photon generation rate in the conjugate arm, allows us to work around this problem. A preliminary uncertainty budget is discussed