534 research outputs found
Developing a Measure of Living Standards for Elders in New Zealand
Author manuscriptNo abstrac
Identifying Misleading Advertising
A procedure for identifying misleading advertising is presented, based solely on measured consumer beliefs. An advertisement is misleading if an exposed group holds more false beliefs than a comparison group. When ten allegedly misleading advertisements were tested, two were identified as incrementally misleading, and four others were shown to be exploitively misleading
Latinx Defendants, False Convictions, and the Difficult Road to Exoneration
The National Registry of Exonerations (the Registry) reports all known exonerations in the United States since 1989. Of the more than 2,400 exonerated defendants currently in the database, 281 are classified as Latinx. In many ways, their cases resemble those of other exonerees. The same factors that produced false convictions of non-Latinx defendants-including mistaken eyewitness identification, misconduct by police and prosecutors, and perjury-were also at work in Latinx
defendants' cases.
There are, however, differences both in the types of crimes for which Latinx exonerees were convicted and in the ways in which they were vulnerable to the errors and misconduct that produce false convictions. Moreover, the consequences of a false conviction-though calamitous for anyone-may be more pronounced for Latinx defendants with precarious immigration status.
In this Article, we present what we know about Latinx defendants who have been exonerated-the nature of the crimes, the factors that contributed to their wrongful convictions, and how their cases compare to non-Latinx exonerees. We discuss the particular ways in which Latinx defendants may be vulnerable to wrongful convictions, using case studies to explore how language barriers, racial profiling, and immigration concerns can be exploited in their cases. Finally, we consider barriers to exoneration, and how falsely convicted Latinx defendants may be particularly disadvantaged when seeking to overturn their convictions
Multiconfiguration Loads Analysis for Missions with an Uncertain Rideshare Manifest
Rideshare or “multi-manifest” missions – where several smaller “rideshare” spacecraft are launched together, usually with a larger “forward” spacecraft – are becoming increasingly common. In many cases, the properties or configuration of the rideshare spacecraft are not well-defined during initial launch manifesting and may not be finalized until a few months before launch. In this paper, a multiconfiguration loads analysis (MLA) process is presented that can enable flexibility in the mission manifesting process by allowing for uncertainty in the final rideshare configuration, including late manifest changes or swaps, without requiring additional loads analyses to those specified in the Load Cycle Process. By applying the MLA process, a set of adequately conservative loads can be generated for the forward spacecraft, launch vehicle, and potential rideshare spacecraft that account for uncertainty in the rideshare manifest and minimize the potential for issues late in the process. The MLA process will also define a mission-specific dynamic properties envelope that would allow rideshare spacecraft that “fit” within the envelope to be swapped. If all parts of the system are verified to match the models used in analysis and designed to survive the bounding loads, the launch manifest can be changed after analyses are completed, much closer to launch, without incurring increased risk
Development of Amygdala Functional Connectivity During Infancy and Its Relationship With 4-Year Behavioral Outcomes
BACKGROUND: The amygdala represents a core node in the human brain's emotional signal processing circuitry. Given its critical role, both the typical and atypical functional connectivity patterns of the amygdala have been extensively studied in adults. However, the development of amygdala functional connectivity during infancy is less well studied; thus, our understanding of the normal growth trajectory of key emotion-related brain circuits during a critical period is limited. METHODS: In this study, we used resting-state functional magnetic resonance imaging (N = 233 subjects with 334 datasets) to delineate the spatiotemporal dynamics of amygdala functional connectivity development during the first 2 years of life. Their relationships with 4-year emotional (i.e., anxiety and inhibitory self-control parent report measures) and cognitive (i.e., IQ) behavioral outcomes were also assessed using multivariate modeling. RESULTS: Our results revealed nonlinear growth of amygdala functional connectivity during the first 2 years of life, featuring dramatic synchronization during the first year followed by moderate growth or fine tuning during the second year. Importantly, functional connectivity growth during the second year had significant behavioral implications exemplified by multiple significant predictions of 4-year emotional and cognitive developmental outcomes. CONCLUSIONS: The delineation of the spatiotemporal dynamics of amygdala functional connectivity development during infancy and their associations with 4-year behavioral outcomes may provide new references on the early emergence of both typical and atypical emotion processing capabilities
Agouti Expression in Human Adipose Tissue: Functional Consequences and Increased Expression in Type 2 Diabetes
It is well recognized that the agouti/melanocortin system is an important regulator of body weight homeostasis. Given that agouti is expressed in human adipose tissue and that the ectopic expression of agouti in adipose tissue results in moderately obese mice, the link between agouti expression in human adipose tissue and obesity/type 2 diabetes was investigated. Although there was no apparent relationship between agouti mRNA levels and BMI, agouti mRNA levels were significantly elevated in subjects with type 2 diabetes. The regulation of agouti in cultured human adipocytes revealed that insulin did not regulate agouti mRNA, whereas dexamethasone treatment potently increased the levels of agouti mRNA. Experiments with cultured human preadipocytes and with cells obtained from transgenic mice that overexpress agouti demonstrated that melanocortin receptor (MCR) signaling in adipose tissue can regulate both preadipocyte proliferation and differentiation. Taken together, these results reveal that agouti can regulate adipogenesis at several levels and suggest that there are functional consequences of elevated agouti levels in human adipose tissue. The influence of MCR signaling on adipogenesis combined with the well-established role of MCR signaling in the hypothalamus suggest that adipogenesis is coordinately regulated with food intake and energy expenditure
Gauging support for macroecological patterns in helminth parasites
© 2018 John Wiley & Sons Ltd Aim: To explore spatial patterns of helminth parasite diversity, and to investigate three main macroecological patterns – (a) latitude–diversity relationships, (b) positive scaling between parasite and host diversity, and (c) species–area relationships – using a largely underutilized global database of helminth parasite occurrence records. Location: Global. Methods: We examined the London Natural History Museum’s collection of helminth parasite occurrence records, consisting of over 18,000 unique host species and 27,000 unique helminth parasite species distributed across over 350 distinct terrestrial and aquatic localities. Results: We find support for latitudinal gradients in parasite diversity and a strong relationship between host and parasite diversity at the global scale. Helminth species diversity–area relationships were not detectable as a function of host body mass, but larger geographic areas supported higher parasite richness, potentially mediated through higher host richness. Main conclusions: Our findings indicate that helminth parasites may obey some of the macroecological relationships found in free-living species, suggesting that parasites may offer further support for the generality of these patterns, while offering interesting counterexamples for others. We conclude with a discussion of future directions and potential challenges in the newly emerging macroecology of infectious disease
Role of adiponectin and inflammation in insulin resistance of Mc3r and Mc4r knockout mice
Objective: To investigate the involvement of hypoadiponectinemia and inflammation in coupling obesity to insulin resistance in melanocortin-3 receptor and melanocortin-4 receptor knockout (KO) mice (Mc3/4rKO). Research Methods and Procedures: Sera and tissue were collected from 6-month-old Mc3rKO, Mc4rKO, and wild-type C57BL6J litter mates maintained on low-fat diet or exposed to high-fat diet (HFD) for 1 or 3 months. Inflammation was assessed by both real-time polymerase chain reaction analysis of macrophage-specific gene expression and immunohistochemistry. Results: Mc4rKO exhibited hypoadiponectinemia, exacerbated by HFD and obesity, previously reported in murine models of obesity. Mc4r deficiency was also associated with high levels of macrophage infiltration of adipose tissue, again exacerbated by HFD. In contrast, Mc3rKO exhibited normal serum adiponectin levels, irrespective of diet or obesity, and a delayed inflammatory response to HFD relative to Mc4rKO. Discussion: Our findings suggest that severe insulin resistance of Mc4rKO fed a HFD, as reported in other models of obesity such as leptin-deficient (Lep ob/Lepob) and KK-Ay mice, is linked to reduced serum adiponectin and high levels of inflammation in adipose tissue. Conversely, maintenance of normal serum adiponectin may be a factor in the relatively mild insulin-resistant phenotype of severely obese Mc3rKO. Mc3rKO are, thus, a unique mouse model where obesity is not associated with reduced serum adiponectin levels. A delay in macrophage infiltration of adipose tissue of Mc3rKO during exposure to HFD may also be a factor contributing to the mild insulin resistance in this model. Copyright © 2007 NAASO
The Steady State Great Ape? Long Term Isotopic Records Reveal the Effects of Season, Social Rank and Reproductive Status on Bonobo Feeding Behavior
Dietary ecology of extant great apes is known to respond to environmental conditions such as climate and food availability, but also to vary depending on social status and life history characteristics. Bonobos (Pan paniscus) live under comparatively steady ecological conditions in the evergreen rainforests of the Congo Basin. Bonobos are an ideal species for investigating influences of sociodemographic and physiological factors, such as female reproductive status, on diet. We investigate the long term dietary pattern in wild but fully habituated bonobos by stable isotope analysis in hair and integrating a variety of long-term sociodemographic information obtained through observations. We analyzed carbon and nitrogen stable isotopes in 432 hair sections obtained from 101 non-invasively collected hair samples. These samples represented the dietary behavior of 23 adult bonobos from 2008 through 2010. By including isotope and crude protein data from plants we could establish an isotope baseline and interpret the results of several general linear mixed models using the predictors climate, sex, social rank, reproductive state of females, adult age and age of infants. We found that low canopy foliage is a useful isotopic tracer for tropical rainforest settings, and consumption of terrestrial herbs best explains the temporal isotope patterns we found in carbon isotope values of bonobo hair. Only the diet of male bonobos was affected by social rank, with lower nitrogen isotope values in low-ranking young males. Female isotope values mainly differed between different stages of reproduction (cycling, pregnancy, lactation). These isotopic differences appear to be related to changes in dietary preference during pregnancy (high protein diet) and lactation (high energy diet), which allow to compensate for different nutritional needs during maternal investment
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