Moscow and arms control : evidence from the Sino-Soviet dispute

"1604"--handwritten on cover"June 1965."Includes bibliographical reference

A time of change, + a time of concern : the transition of adolescents from elementary school to high school.

Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.S.W.)--University of Windsor (Canada), 1973

No indictment for Moscow war criminals?

This repository item contains a single issue of Behind the Breaking News, a briefing published from 1999 to 2009 by the Boston University Institute for the Study of Conflict, Ideology, and Policy

Periodontal surgery in furcation-involved maxillary molars revisited—an introduction of guidelines for comprehensive treatment

Maxillary molars with interradicular loss of periodontal tissue have an increased risk of additional attachment loss with an impaired long-term prognosis. Since accurate clinical analysis of furcation involvement is not feasible due to limited access, morphological variations and measurement errors, additional diagnostics, e.g., with cone-beam computed tomography, may be required. Surgical treatment options have graduated from a less invasive approach, i.e., keeping as much periodontal attachment as possible, to a more invasive approach: (1) open flap debridement with/without gingivectomy or apically repositioned flap and/or tunnelling; (2) root separation; (3) amputation/trisection of a root (with/without root separation or tunnel preparation); (4) amputation/trisection of two roots; and (5) extraction of the entire tooth. Tunnelling is indicated when the degree of root separation allows for opening of the interradicular region. Alternatively, root separation is performed particularly in root-canal treated teeth with reduced coronal tooth substance requiring crown restorations. As soon as the attachment of one or two roots in maxillary molars is severely reduced, root removal is indicated and performed either as amputation or trisection including the corresponding part of the clinical crown. While the indication for regenerative measures in maxillary molars with furcation involvement is very limited, extraction and replacement with implants is restricted, particularly in sites requiring complex alveolar ridge augmentation and sinus elevation. A systematic approach for decision making in furcation-involved maxillary molars is described in this overview, including what constitutes accurate diagnosis and what indications there are for the different surgical periodontal treatment option

Brushing without brushing?—a review of the efficacy of powered toothbrushes in noncontact biofilm removal

Objectives: The aim of the present review was to analyze the impact of the hydrodynamic effects created by powered toothbrushes on biofilm removal in vitro. Materials and methods: A MEDLINE search was performed for publications published by 20 May 2012; this search was complemented by a manual search. The study selection, data preparation, and validity assessment were conducted by two reviewers. Results: Sixteen studies were included. The studies differed with respect to the methods of biofilm formation and brushing protocols. Eighteen different powered toothbrush models were evaluated. Toothbrushes with side-to-side action demonstrated biofilm removal without direct bristle contact to biofilms ranging from 38 to 99%. Most studies found biofilm removal exceeding 50%. Biofilm reduction using multidimensional toothbrushes was significantly lower than by those with the side-to-side mode. Detachment forces due to hydrodynamic phenomena, passing air-liquid interfaces, and acoustic energy transfer were suggested to cause reduction of the biofilm. Conclusion: Noncontact biofilm reduction was obtained by the hydrodynamic effects of some powered toothbrushes in vitro. Clinical relevance: Powered toothbrushes may have the potential to simplify self-performed oral hygiene. However, additional beneficial effects of higher amounts of noncontact biofilm removal in vitro have not been shown clinically, ye

A Returnable Transport Item to Integrate Logistics 4.0 and Circular Economy in Pharma Supply Chains

Recent global events, such as the COVID-19 pandemic, the war in Ukraine and the climate crisis, force the pharma logistics sector to rapidly improve their processes and establish more resilient and sustainable medical supply chains. For this purpose, the pharma logistics sector needs to catch up in Industry 4.0 adoption and establish circular economies. In the context of the applied research project DigiPharmaLogNet, a prototypic returnable transport item (RTI) is enhanced with communication technology and piloted in pharma-specific use-cases. The results will build the base for developing business models and roadmaps towards sustainable pharma logistics networks. This article describes the technological developments and economical evaluations of potential business models

Requirements for the Transformation towards Returnable Transport Item-Enabled Circular Economies in the Austrian Parcel Industry

The European Green Deal sets the ambitious targets of establishing the first climate neutral continent by 2050 and reducing emissions by a minimum of 55% by 2030. In order to move the involved stakeholders to action, the European Commission has formulated proposals for regulations. One such proposal defines a legal framework to force industries to reduce the environmental burden caused by packaging waste. A major waste producer is the parcel service industry (CEP; courier, express, and parcel) and the industries it serves. Once put into place by the EU member states, the new laws will force all players in these sectors to increase business innovations in circular economies, which are based on the principles of recycling and reuse. Circular economies can be achieved by the implementation of returnable transport items (RTI) integrated with Industry 4.0 technologies. The ongoing research project ReKEP, which is largely funded by the Austrian Federal Ministry for Climate Action, Environment, Energy, Mobility, Innovation and Technology, investigates potential impacts of RTI-based circular economies in the Austrian parcel service industry. The project’s particular interest is to identify the requirements of the most relevant stakeholder groups in the CEP industry for the successful transformation towards RTI-enabled circular economies. For this purpose, we conducted interviews with leaders and decision-makers of 10 stakeholder organizations, including producers, retailers, CEP contractors and the Austrian Federal Economic Chamber. This paper summarizes the interview results, which indicate that, despite recognizing the high potential of RTIs for reaching ecological sustainability goals, the contemporary awareness of the EU Green Deal and the concomitant responsibility to take action seems too low for successful implementation. The study outcome suggests that research and development in RTI should focus on operational requirements of workers and line managers from CEP industries for successful transformations to circular economies