Subjective expectations in the context of HIV/AIDS in Malawi

In this paper we present a newly developed interactive elicitation methodology for collecting probalistic in expectations in a developing country context with low levels of literacy and numeracy, and we evaluate the feasibility and success of this method for a wide range of outcomes in rural Malawi. We find that respondents' answers about their subjective expectations take into account basic properties of probabilities, and vary meaningfully with observable characteristics and past experience. From a substantive point of view, the elicited expectation's indicate that individuals are generally aware of differential risks. For example, individuals with lower incomes and less land rightly feel at greater risk of financial distress than people with higher socioeconomic status (SES), and people who are divorced or widowed rightly feel at greater risk of being infected with HIV than currently married individuals. Meanwhile many expectations - including the probability of being currently infected with HIV - are well-calibrated compared to actual probabilities, but mortality expectations are substantially overestimated compared to life table estimates. This overestimation maylead individuals to underestimate the benefits of adopting HIV risk-reduction strategies. The skewed distribution, of expectations about condom use also suggests that a small group of innovators are the forerunners in the adoption of condoms within marriage for HIV prevention. © 2009 Adeline Delavande & Hans-Peter Kohler

Latitude-longitude grid maps of Africa

Zoologica Africana 1(1): 26

Classification problems of African muridae

Zoologica Africana 1(1): 121-14

Tanzania HIV/AIDS and Malaria Indicator Survey 2011-12(Preliminary Results)

Preliminary results (tables only) for the malaria indicators and selected HIV indicators. The results were released by the National Bureau of Statistics on 11 October 2012. Full results of the survey are still being compiled and will be included in the final report

Knowledge and Beliefs about Cancer in African American Population

Cancer is the second most common cause of death in the United States, taking the lives of one in four Americans each year (American Cancer Society [ACS], 2015). A total of 1,658,370 new cancer cases and 589,430 deaths from cancer were projected to occur in the United States in 2015 (ACS, 2015). In 2013, approximately 176,630 new cancer cases and 64,880 deaths from cancer were projected to occur in African American communities. The majority of diagnoses were cancers of the prostate, lung, colon, rectum, breast, and colorectal region (ACS, 2013). For most cancers, African Americans have the highest death rate, and shortest survival rate, of any racial or ethnic sub-groups (ACS, 2013). Individual perception, knowledge, beliefs, and awareness systems can influence the cancer evaluation process and the ability to fight the disease. The health belief model (HBM) is a conceptual framework used to explain an individual’s behavior based on the individual’s belief or perception. This paper reports on an analysis of a sample of self-identified African American respondents to the Health Information National Trends Survey (HINTS) data HINT4 cycle3, to explore an association of African Americans’ knowledge, beliefs and the processes of cancer information-seeking behavior based on the HBM and demographic information. The results showed that African Americans with a higher level of education were significantly more likely to access common sources of cancer information. Perceived benefits and cues-to-action were significantly associated with the common sources of cancer information sought whereas perceived susceptibility, perceived severity, perceived barrier, and self-efficacy were not. African Americans’ perceptions and beliefs of cancer may be enhanced through health education, mass media campaigns, and a wider availability of health information online

Anaesthesiologists, fees and complaints to the Health Professions Council of South Africa

Anaesthesiologists are reputedly the most complained about single speciality to the Health Professions Council of South Africa (HSPCA). The majority of complaints include unhappiness with either the consent process itself or involve the amount that the patient was charged and how the patient felt that there was inadequate disclosure during the consent process on the financial aspects pertaining to the procedure. The question is asked if anaesthesiologists are over-represented, and if so, are there potentially any reasons why anaesthesiologists as a group are more vulnerable to criticism? The South African Society of  Anaesthesiologists and the Medical Protection Society are working on ways of diminishing the risk of complaints to the HSPCA about anaesthesiologists. However, in doing so, it is important to reflect upon the factors which may play a role.Keywords: complaints, HPCSA, consent, anaesthesiologist

Enabling Thin and Flexible Solid-State Composite Electrolytes by the Scalable Solution Process

All solid-state batteries (ASSBs) have the potential to deliver higher energy densities, wider operating temperature range, and improved safety compared with today's liquid-electrolyte-based batteries. However, of the various solid-state electrolyte (SSE) classes - polymers, sulfides, or oxides - none alone can deliver the combined properties of ionic conductivity, mechanical, and chemical stability needed to address scalability and commercialization challenges. While promising strategies to overcome these include the use of polymer/oxide or sulfide composites, there is still a lack of fundamental understanding between different SSE-polymer-solvent systems and its selection criteria. Here, we isolate various SSE-polymer-solvent systems and study their molecular level interactions by combining various characterization tools. With these findings, we introduce a suitable Li7P3S11SSE-SEBS polymer-xylene solvent combination that significantly reduces SSE thickness (∼50 μm). The SSE-polymer composite displays high room temperature conductivity (0.7 mS cm-1) and good stability with lithium metal by plating and stripping over 2000 h at 1.1 mAh cm-2. This study suggests the importance of understanding fundamental SSE-polymer-solvent interactions and provides a design strategy for scalable production of ASSBs

Thickness and Conductivity of Metallic Layers from Pulsed Eddy Current Measurements

Coatings and surface treatments find a wide range of technological applications; they can provide wear resistance, oxidation and corrosion protection, electrical contact or isolation and thermal insulation. Consequently, the ability to determine the thickness of coated metals is important for both process control and in-service inspection of parts. Presently ultrasonic, thermal, and eddy current inspection methods are used, depending on the circumstances. A number of commercial instruments for determining the thickness of nonconducting coatings on metal substrates are based on the fact that the impedance change of the coil decreases exponentially with the distance of the coil from the metal (the lift-off effect). However, these instruments are not suitable for determining the thickness of metal layers on conducting substrates

The effect of an NgR1 antagonist on the neuroprotection of cortical axons after cortical infarction in rats

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Free radical scavenging activity of Pterogyne nitens Tul. (Fabaceae)

As part of our ongoing research on antioxidant agents from Brazilian flora, twenty extracts and fractions obtained from Pterogyne nitens Tulasne (Fabaceae) were screened for free radical scavenging activity by using ABTS [2,2’-azinobis(3-ethylenebenzothiazoline-6-sulfonic acid)] and DPPH (2,2-diphenyl-1-picrylhydrazyl-hydrate) radicals colorimetric assay and -carotene bleaching test. The strongest activity was found in ethyl acetate fraction from the stem barks, exhibiting IC50 values (inìg/ml) of 2.10 ± 0.1 and 10.2 ± 0.3 on ABTS•+ and DPPH•, respectively. Additionally, chromatographic fractionation of stem barks yielding myricetin, quercitrin and mirycetrin, three flavonols with remarkable antioxidant activity