Development of high efficiency (14 percent) solar cell array module

Most effort was concentrated on development of procedures to provide large area (3 in. diameter) high efficiency (16.5 percent AM1, 28 C) P+NN+ solar cells. Intensive tests with 3 in. slices gave consistently lower efficiency (13.5 percent). The problems were identified as incomplete formation of and optimum back surface field (BSF), and interaction of the BSF process and the shallow P+ junction. The problem was shown not to be caused by reduced quality of silicon near the edges of the larger slices

Development of High Efficiency (14%) Solar Cell Array Module

High efficiency solar cells required for the low cost modules was developed. The production tooling for the manufacture of the cells and modules was designed. The tooling consisted of: (1) back contact soldering machine; (2) vacuum pickup; (3) antireflective coating tooling; and (4) test fixture

Judicial Application of Ohio\u27s Comparative Negligence Statute

In the case of Wilfong v. Batdorf the Ohio Supreme Court reexamined the issue of the retroactive application of Ohio\u27s comparative negligence statute. Ohio\u27s statute abolishing the defense of contributory negligence in a tort action was passed with an effective date of June 20, 1980, and the court faced the task of deciding whether comparative fault measurements could be used in an action arising prior to the effective date of the statute, but not coming to trial until after the effective date of the act. Previously the court had the opportunity to examine this issue in the case of Viers v. Dunlap, but had there ruled that comparative negligence was a change in substantive rights, hence, could not be given retroactive application under the provisions of the Ohio Constitution. Wilfong overruled Viers, concluding that comparative negligence modified only remedial aspects of a plaintiff\u27s case, is procedural rather than substantive in nature, and its retroactive application is constitutionally permissable

A systematic review of interventions for Hispanic women with or at risk of Gestational diabetes mellitus (GDM)

© 2017 Elsevier B.V. Background and objective Gestational Diabetes Mellitus (GDM) is a serious health concern for pregnant women, with Hispanic women at particular risk for developing the condition. The aim of this review was to critically examine GDM intervention programs for Hispanic women, in the United States of America (US). Methods English and Spanish electronic databases were searched for relevant studies published between 1995 and 2015. Eligible study designs included randomized controlled trial, pre/post-test and quasi experimental methods. Results Findings indicated that there was a dearth of literature reporting on GDM interventions for Hispanic women and just seven papers met inclusion criteria. These seven studies were included in the review and they reported on interventions for: (1) pregnant women at high risk of developing GDM; (2) pregnant women with GDM. Results suggest that a combination of intensive counselling over a prolonged period of time, together with a low calorie, possibly low glycemic index diet, produces best results. Conclusion The review found that intensive nutritional counselling approaches which promote low calorie/low GI diets appear to be most effective in BGL management in this population. Interventions that are delivered in Spanish and culturally tailored may be more acceptable to participants. More research is needed to develop suitable interventions to improve GDM management among Hispanic women

Arene oxidation with malonoyl peroxides

Malonoyl peroxide 7, prepared in a single step from the commercially available diacid, is an effective reagent for the oxidation of aromatics. Reaction of an arene with peroxide 7 at room temperature leads to the corresponding protected phenol which can be unmasked by aminolysis. An ionic mechanism consistent with the experimental findings and supported by isotopic labeling, Hammett analysis, EPR investigations and reactivity profile studies is proposed

Online conferences – Towards a new (virtual) reality

The recent article: Nature 579, 327–328 (2020), ending with the phrase: “You can’t just suddenly make a conference be online.”, has motivated us to write about the practicalities and philosophy of running online events, drawing on our extensive experience running an annual online computational chemistry conference. Our goals for this online conference series have always been: (1) Availability; (2) Community building and (3) Supporting young scientists. In this article, we highlight the motivations behind our initiative, how this has influenced the organisation of our online meeting, and discuss the benefits as well as the drawbacks of virtual meetings. Virtual conferences may not fully replace in-person meetings, but they are rapidly becoming an accepted alternative format. We discuss the hybrid online/in-person conference format as a future possibility that may offer an opportunity to reduce the environmental impact and accessibility barriers associate with in-person meetings without comprising networking and community-building opportunities