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Purity, body, and self in early rabbinic literature
This book explores the ways in which the early rabbis reshaped biblical laws of ritual purity and impurity and argues that the rabbis' new purity discourse generated a unique notion of a bodily self. Focusing on the Mishnah, a Palestinian legal codex compiled around the turn of the third century CE, Mira Balberg shows how the rabbis constructed the processes of contracting, conveying, and managing ritual impurity as ways of negotiating the relations between one's self and one's body and, more broadly, the relations between one's self and one's human and nonhuman environments. With their heightened emphasis on subjectivity, consciousness, and self-reflection, the rabbis reinvented biblically inherited language and practices in a way that resonated with central cultural concerns and intellectual commitments of the Greco-Roman Mediterranean world. Purity, Body, and Self in Early Rabbinic Literature adds a new dimension to the study of practices of self-making in antiquity by suggesting that not only philosophical exercises but also legal paradigms functioned as sites through which the self was shaped and improved.
eBook
Impurity and gender in the Hebrew Bible
Impurity and Gender in the Hebrew Bible explores the role of female blood in the Hebrew Bible and considers its theological implications for future understandings of purity and impurity in the Jewish religion.
eBook
Influence of boric acid flux on the performance of LaZnAl11O19 ceramic waste form
Solidification with LaZnAl11O19 ceramics is one of the feasible strategies for treating high-alumina high-level waste. With the utilization of 12.5 wt% boric acids as flux, high-purity LaZnAl11O19 was obtained by solid-state method at 1450°C for 12 h. It was demonstrated that adding H3BO3 flux not only increased the purity of the samples and lowered the synthesis temperature, but also improved their micromorphology.
Journal Article
‘A REMARKABLE ARTIFICE’: LAPLACE, POISSON AND MATHEMATICAL PURITY
In the early nineteenth century, a series of articles by Laplace and Poisson discussed the importance of ‘directness’ in mathematical methodology. In this thesis, we argue that their conception of a ‘direct’ proof is similar to the more widely contemplated notion of a ‘pure’ proof. More rigorous definitions of mathematical purity were proposed in recent publications by Arana and Detlefsen, as well as by Kahle and Pulcini: we compare Laplace and Poisson’s writings with these modern definitions of purity and show how the modern definitions fail to grasp some more nuanced aspects.
Journal Article
Use of Recycling-Reflection Color-Purity Enhancement Film to Improve Color Purity of Full-Color Micro-LEDs
A common full-color method involves combining micro-light-emitting diodes (LEDs) chips with color conversion materials such as quantum dots (QDs) to achieve full color. However, during color conversion between micro-LEDs and QDs, QDs cannot completely absorb incident wavelengths cause the emission wavelengths that including incident wavelengths and converted wavelength through QDs, which compromises color purity. The present paper proposes the use of a recycling-reflection color-purity-enhancement film (RCPEF) to reflect the incident wavelength multiple times and, consequently, prevent wavelength mixing after QDs conversion. This RCPEF only allows the light of a specific wavelength to pass through it, exciting blue light is reflected back to the red and green QDs layer. The prototype experiment indicated that with an excitation light source wavelength of 445.5 nm, the use of green QDs and RCPEFs increased color purity from 77.2% to 97.49% and light conversion efficiency by 1.97 times and the use of red QDs and RCPEFs increased color purity to 94.68% and light conversion efficiency by 1.46 times. Thus, high efficiency and color purity were achieved for micro-LEDs displays.
Journal Article