In a repeated-measures design, two infant chimpanzees and three human infants were tested in like manner using the Uzgiris and Hunt (1975) stepwise assessment instrument for the development of object permanence in human infants. Comparisons between chimpanzee and human subjects showed similarities in the number of steps achieved, in the order and rate of achieving the steps, and in the detailed characteristics of searching behavior. These results suggest that the course of development of the concept of object permanence, as described by Piaget, is a very general one.

This document provides recommendations for the implementation of password-based cryptography, covering key derivation functions, encryption schemes, message authentication schemes, and ASN

Security incidents, such as system compromises, worms, viruses, phishing incidents, and denial of service, typically result in the loss of service, data, and resources both human and system. Service providers and Computer Security Incident Response Teams need to be equipped and ready to assist in communicating and tracing security incidents with tools and procedures in place before the occurrence of an attack. Real-time Inter-network Defense (RID) outlines a proactive inter-network communication method to facilitate sharing incident-handling data while integrating existing detection, tracing, source identification, and mitigation mechanisms for a complete incident-handling solution. Combining these capabilities in a communication system provides a way to achieve higher security levels on networks. Policy guidelines for handling incidents are recommended and can be agreed upon by a consortium using the security recommendations and considerations. This document obsoletes RFC 6045. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6545.

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Stock-outs of medications for antiretroviral therapy have been reported as a significant barrier to HIV care in sub-Saharan Africa, but patient responses to these shortages have not been fully described. The aim of our study was to employ qualitative methods to examine the role of medication stock-outs in contributing to treatment interruption among a sample of patients already engaged in care for HIV at Komfo Anokye Teaching Hospital in Kumasi, Ghana. We found that medication stock-outs presented a number of challenges to adherence for patients undergoing HIV treatment. Often, patients interrupted treatment until the stock-out ended. Those who did not interrupt treatment during stock-outs coped with shortages by stockpiling old medication or experienced clinic-initiated changes to their treatment regimens. Particularly in areas lacking the resources to monitor viral load or viral genotype, viral resistance could develop due to frequent unstructured treatment interruptions as a result of stock-outs.

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This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc5758.