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Pulmonary artery capacitance is a relatively novel measurement associated with adverse outcomes in pulmonary arterial hypertension. We sought to determine if preoperative indexed pulmonary artery capacitance was related to outcomes in paediatric heart transplant recipients, describe the changes in indexed pulmonary artery capacitance after transplantation, and compare its discriminatory ability to predict outcomes as compared to conventional predictors.
Methods:
This was a retrospective study of paediatric patients who underwent heart transplant at our centre from July 2014 to May 2022. Variables from preoperative and postoperative clinical, catheterisation, and echo evaluations were recorded. The primary composite outcome measure included postoperative mortality, postoperative length of stay in the top quartile, and/or evidence of end organ dysfunction.
Results:
Of the 23 patients included in the analysis, 11 met the composite outcome. There was no statistical difference between indexed pulmonary artery capacitance values in patients who met the composite outcome [1.8 ml/mmHg/m2 (interquartile 0.8, 2.4)] and those who did not [1.4 (interquartile 0.9, 1.7)], p = 0.17. There were no significant signs of post-operative right heart failure in either group. There was no significant difference between pre-transplant and post-transplant indexed pulmonary artery capacitance or indexed pulmonary vascular resistance.
Conclusions:
Preoperative pulmonary artery capacitance was not associated with our composite outcome in paediatric heart transplant recipients. It did not appear to be additive to pulmonary vascular resistance in paediatric heart transplant patients. Pulmonary vascular disease did not appear to drive outcomes in this group.
The U.S. federal government adopted aggressive policies to control animal diseases decades before it made significant attempts to improve human health. Progressive-era reformers crafted a powerful argument that the male-dominated, rural-oriented political system valued the lives of hogs more than the well-being of babies. The invidious hog-baby comparison became a pervasive theme in debates over the Children’s Bureau, a National Department of Health, and the Sheppard-Towner Act, and it has been reproduced uncritically in recent years. This article investigates the important historical relationships between U.S. animal and human health policies. Human health champions would have been better served by embracing a One Health approach when possible, drawing more on the lessons learned in combating animal diseases.
This study evaluated whether the Family Bereavement Program (FBP), a prevention program for parentally bereaved families, improved parenting attitudes toward parental warmth and physical punishment in young adult offspring 15 years after participation and identified mediational cascade pathways. One hundred fifty-six parents and their 244 offspring participated. Data were collected at pretest (ages 8–16), posttest, and six- and 15-year follow-ups. Ethnicity of offspring was: 67% non-Hispanic Caucasian, 16% Hispanic, 7% African American, 3% Native American, 1% Asian or Pacific Islander, and 6% other; 54% were males. There was a direct effect of the FBP on attitudes toward physical punishment; offspring in the FBP had less favorable attitudes toward physical punishment. There were also indirect effects of the FBP on parenting attitudes. The results supported a cascade effects model in which intervention-induced improvements in parental warmth led to fewer externalizing problems in adolescence/emerging adulthood, which in turn led to less favorable attitudes toward physical punishment. In addition, intervention-induced improvements in parental warmth led to improvements in anxious romantic attachment in mid-to-late adolescence/emerging adulthood, which led to more favorable attitudes toward parental warmth in emerging/young adulthood. These findings suggest that the effects of relatively brief prevention programs may persist into subsequent generations.
This chapter presents a new contextual coping model that integrates several major theoretical frameworks for studying children’s coping in the context of exposure to interparental conflict (IPC) after parental separation and divorce. We first provide a brief overview of the literature on postdivorce IPC and its risks to children’s development and well-being. We then consider how a new contextual coping model advances how we understand the complexity of children’s coping with IPC after parental separation/divorce. We discuss how this approach incorporates elements of other models that have been applied to children’s response to IPC more broadly. We review prior research and present new analyses that illustrate the utility of using a contextual coping model to understand children’s strategies for coping with post-separation/divorce IPC. We end the chapter with a discussion of implications of a contextual coping model for theory advancement and intervention strategies to promote children’s adaptive coping with post-separation/divorce IPC.
Agri-environmental schemes (AES) are used to enhance pollinator diversity on agricultural farms within the UK. Though the impacts of these schemes on archetypal pollinator species such as the bumblebee (Bombus) and honeybee (Apis) are well-studied, the effects on non-target bee species like solitary bees, in the same environment, are generally lacking. One goal of AES is to alter floral provision and taxonomic composition of plant communities to provide better forage for pollinators, however, this may potentially impact other ecological communities such as fungal diversity associated with plant-bee communities. Fungi are integral in these bee communities as they can impact bee species both beneficially and detrimentally. We test the hypothesis that alteration of the environment through provision of novel plant communities has non-target effects on the fungi associated with solitary bee communities. We analyse fungal diversity and ecological networks formed between fungi and solitary bees present on 15 agricultural farms in the UK using samples from brood cells. The farms were allocated to two categories, low and high management, which differ in the number of agri-environmental measures implemented. Using internal transcribed spacer metabarcoding, we identified 456 fungal taxa that interact with solitary bees. Of these, 202 (approximately 44%) could be assigned to functional groups, the majority being pathotrophic and saprotrophic species. A large proportion was Ascosphaeraceae, a family of bee-specialist fungi. We considered the connectance, nestedness, modularity, nestedness overlap and decreasing fill, linkage density and fungal generality of the farms' bee–fungi ecological networks. We found no difference in the structure of bee–fungi ecological networks between low and high management farms, suggesting floral provision by AES has no significant impact on interactions between these two taxonomic groups. However, bee emergence was lower on the low management farms compared to high management, suggesting some limited non-target effects of AES. This study characterizes the fungal community associated with solitary bees and provides evidence that floral provision through AES does not impact fungal interactions.
Deficits in social functioning, including communication, work, social skills, and community functioning, are a defining feature of schizophrenia. Functional outcomes of schizophrenia are affected by several factors such as social cognition, neurocognition, psychopathology, and clinical outcomes. The multifaceted association among these factors and functional outcome continues to be unclear. Given the significant role of functional outcomes in schizophrenia, there has been increasing importance in factors that may underlie these outcomes. If the characteristics of these factors can be defined, interventions may be developed to improve them, which, in turn, will have a parallel impact on long term functioning and outcome. The current study examines whether social cognition, neurocognition and clinical symptoms have a relationship on functional outcomes in patients with schizophrenia.
Methods:
37 patients with DSM-IV schizophrenia were assessed for: Neurocognition; MCCB-MATRICS, Clinical Symptoms: PANSS, Social Cognition: MSCEIT, Emotion Recognition-40 (ER-40), Dynamic Social Cognition Battery (DSCB: Emotion Identification - Facial, Verbal and Non Verbal), Functional Outcomes: University of San Diego Performance Based Assessment (USCD-UPSA), Social Skills: Personal and Social Performance Scale (PSP). Structural Equation Modeling (SEM) employed with maximum likelihood estimation for test effects.
Results:
The overall model fit was χ2=39.6, P<0.14. Fit indexes: Cmin/df=1.25, NFI=0.96, Tucker-Lewis index (Bentler and Bonnet nonformed fit index)=0.97, RMSEA=0.044. Regression weights of the latent variable 'Marder Negative Factor' were significant and high (β=0.91) and a substantial amount of variance could be explained by negative symptoms, indicating that the negative factor is a reliable measure of the latent variable. In addition, the regression weights of the latent variable social cognition to the 3 indicators were moderate and significant (Emotion Recognition DSCB: β=0.77, ER-40: β=0.46, and Nonverbal Emotion Identification, β=0.44). Like social cognition, the latent variable functional assessment explained a substantial amount of variance in the latent variables of working memory (45%). Impact of social cognition on negative symptoms (β=0.91) was greater than the direct impact of social functioning (β=0.78) and functional assessments (β=0.63).
Conclusions:
This study suggests that 49% of negative symptoms could be explained by impaired social cognition and that 49% of social functioning skills could be explained by social cognition. Our findings suggest that social cognition may be an essential target to improve functional outcomes. These findings provide evidence that may help develop novel interventions.
The combination of sensitivity and large sky coverage of the ALFALFA HI survey has enabled the detection of difficult to observe low mass galaxies in large numbers, including dwarf galaxies overlooked in optical surveys. Three different, but connected, studies of dwarf galaxies from the ALFALFA survey are of particular interest: SHIELD (Survey of HI in Extremely Low-mass Dwarfs), candidate gas-rich ultra-faint dwarf galaxies, and the (Almost) Dark population. SHIELD is a systematic multiwavelength study of all dwarf galaxies from ALFALFA with MHI < 107.2M⊙ and clear optical counterparts. Candidate gas-rich ultra-faint dwarf galaxies extend the dwarf galaxy population to even lower masses. These galaxies are identified as isolated HI clouds with no discernible optical counterpart but subsequent observations reveal that some are extremely faint, gas-dominated galaxies. Leo P, discovered first as an HI detection, and then found to be an actively star-forming galaxy, bridges the gap between these candidate galaxies and the SHIELD sample. The (Almost) Dark sample consists of galaxies whose optical counterparts are overlooked in current optical surveys but which are clear detections in ALFALFA. This sample includes field gas-rich ultra-diffuse galaxies. Coma P, with a peak surface brightness of only ∼26.4 mag arcsec−2 in g’, demonstrates the sort of extreme low surface brightness galaxy that can be discovered in an HI survey.
The commissioning and operation of apparatus for neutron diffraction at simultaneous high temperatures and pressures is reported. The basic design is based on the Paris-Edinburgh cell using opposed anvils, with internal heating. Temperature is measured using neutron radiography. The apparatus has been shown in both on-line and off-line tests to operate to a pressure of 7 GPa and temperature of 1700°C. The apparatus has been used in a neutron diffraction study of the crystal structure of deuterated brucite, and results for 520°C and 5.15 GPa are presented. The diffraction data that can be obtained from the apparatus are of comparable quality to previous high-pressure studies at ambient temperatures, and are clearly good enough for Rietveld refinement analysis to give structural data of reasonable quality.
Character plays a crucial role in US law. This article explores flaws in how moral character requirements determine who can work in licensed occupations, who can practice law, and who can immigrate to the United States or become a citizen. Section I summarizes psychological research on character, which raises questions about a central legal premise that individuals have a settled disposition capable of accurately predicting their behavior independent of situational influences. Section II examines the role of moral character as an employment credential. Almost a third of the workforce is covered by licensing laws that typically require proof of good character and often unjustly penalize the seventy million Americans with criminal records. Section III examines the idiosyncratic and inconsistent application of moral character requirements for lawyers. Section IV focuses on similar flaws in immigration contexts. Section V identifies reform strategies to improve the fairness of character-related decisions in the law.
The effect of wheat straw incorporation on imazaquin concentration and biological activity in soil solution was determined as a function of herbicide rate and time of incubation. Etowah silt loam, amended with wheat straw (2 g/kg) or unamended, received imazaquin (0, 31, 62, or 124 μg ai/kg oven-dry soil). Soils incubated at 25 C were subsampled 0, 12, 24, 48, and 96 h after treatment and soil solutions were analyzed for imazaquin, pH, and electrical conductivity. Wheat straw amendment, imazaquin rate, and time of incubation influenced the concentration of imazaquin in the soil solution. Imazaquin concentration in soil solution exhibited gradual linear declines with time. Relative length of sunflower radicles declined with increased imazaquin rate. Regression of relative radicle length on activity of imazaquin anion in soil solution indicated differential response in the presence of wheat straw-amended versus unamended soil.
Field research was conducted in Tennessee at two locations over 3 yr under no-tillage conditions to examine the interaction of broadleaf signalgrass and corn yield. Broadleaf signalgrass was killed at various time intervals during the growing season by applying postemergent glyphosate. Corn injury was avoided by the use of a glyphosate-tolerant variety. Yield reductions because of broadleaf signalgrass interference occurred with weed densities > 150 plants m−2 and when the corn and weeds emerged simultaneously. Corn had the ability to withstand broadleaf signalgrass presence up to 28 d after planting with no yield loss at all locations.
A contradiction has existed in the literature as to the conditions favoring formation of “ablation hollows” (“suncups”) on a melting snow surface. Some experiments find that these features grow under direct sunlight and decay in overcast, windy weather; whereas others find just the opposite result, that they grow best under cloudy, windy conditions and decay if exposed to direct sunlight. We find that the hidden variable in past experiments, which acts as a switch to determine which mode of formation can operate, is the absence or abundance of dark insoluble impurities in the snow. Direct sunlight causes ablation hollows to grow in clean snow and to decay in dirty snow (for dirt content below a critical value), because the dirt migrates to the ridges between the hollows, lowering the albedo at the ridges. By contrast, when ablation is dominated by turbulent heat exchange, the presence of dirt favours development of ablation hollows because the dirt migrates to the ridges and insulates them; albedo reduction has a negligible effect on ablation.
This hypothesis is supported by an experiment which showed that the presence of a thin layer of volcanic ash on the snow inhibited formation of ablation hollows under direct sunlight.
Herbicide treatments (4:1 ratio of 2,4-D amine:picloram) at 0.7 and 1.4 kg ae/ha at early postemergence (10- to 15-cm horsenettle height), midpostemergence (early flower), and late postemergence (fruit initiation) applied both early and late in the growing season provided >80% horsenettle control. Horsenettle density at season's end in all treated plots was less than 0.25 stems/m2, whereas untreated plots contained about 5 stems/m2. Horsenettle control the next spring was between 47 and 66% for all rates and application timings, and horsenettle density in treated plots was less than 3 stems/m2 as opposed to about 6 stems/m2 in the untreated plots. Clover drilled into the treated area the year after herbicide application was injured, indicating clover establishment the season after application of this package mixture would be difficult.
Dating and geomorphology of shoreline features in the Qinghai Lake basin of northwestern China suggest that, contrary to previous interpretations, the lake likely did not reach levels 66–140 m above modern within the past ∼ 90,000 yr. Maximum highstands of ∼ 20–66 m above modern probably date to Marine Isotope Stage (MIS) 5. MIS 3 highstands are undated and uncertain but may have been at or below post-glacial highs. The lake probably reached ∼ 3202–3206 m (+ 8–12 m) during the early Holocene but stayed below ∼ 3202 m after ∼ 8.4 ka. This shoreline history implies significantly different hydrologic balances in the Qinghai Lake basin before ∼ 90 ka and after ∼ 45 ka, possibly the result of a more expansive Asian monsoon in MIS 5.
By
Deborah Gordon, Professor of Law and Director of the Center on the Legal Profession at Stanford University.,
Deborah L. Rhode, Professor of Law and Director of the Center on the Legal Profession at Stanford University.
In Johnson, the U.S. Supreme Court upheld a voluntary affirmative action plan that the defendant agency (the “Agency”) implemented in response to a significant lack of female workers in its “skilled,” and therefore supervisory and higher-paying, positions. Justice Brennan, for the majority, found that the plan did not violate Title VII even though it allowed the Agency to take into account a job applicant's sex; the Court reasoned that this preference was used to remedy a “manifest” imbalance in job classifications for which women had been traditionally underrepresented and, in doing so, did not “unnecessarily trammel” the rights of male workers or create an absolute bar to their advancement.
Extending approval of race-based affirmative action programs to gender- based programs, the Johnson Court also recognized that treating women “equally” with men did not necessarily mean treating women identically to men. And yet, by accepting that the male applicant in question was “more qualified” than the female, Johnson embraces the notion that merit can be objectively and fairly determined. Professor Deborah Rhode, writing as Justice Rhode, rewrites the decision to highlight and debunk this fundamental misunderstanding and to confront directly how limits on women's traditional employment opportunities are not simply matters of choice.
JOHNSON: FACTS AND DOCTRINE
Diane Joyce was the first woman at the Agency to hold a road maintenance position, a prerequisite to the dispatcher job at the center of the dispute in this case. At the time Joyce applied to be dispatcher, the Agency had never employed a woman in that position or in any of its 238 “skilled craft” positions.
One of Joyce's review panels included two Agency employees who had sexually harassed Joyce in the past. Although this panel recommended promoting Petitioner Paul Johnson over Joyce, the Agency Director decided to promote Joyce instead. In response, Johnson filed a complaint alleging that he had been denied a promotion on the basis of sex in violation of Title VII.
The district court found that Johnson was “more qualified” for the dispatcher position than Joyce and that Joyce's gender was the “determining factor in her selection”; it further held that the Agency's plan violated Steelworkers v.
Control of fire was a hallmark of developing human cognition and an essential technology for the colonisation of cooler latitudes. In Europe, the earliest evidence comes from recent work at the site of Cueva Negra del Estrecho del Río Quípar in south-eastern Spain. Charred and calcined bone and thermally altered chert were recovered from a deep, 0.8-million-year-old sedimentary deposit. A combination of analyses indicated that these had been heated to 400–600°C, compatible with burning. Inspection of the sediment and hydroxyapatite also suggests combustion and degradation of the bone. The results provide new insight into Early Palaeolithic use of fire and its significance for human evolution.
Benchmarks for antimicrobial consumption measured in antimicrobial days are beginning to emerge. The relationship between the traditional measure of days of therapy and antimicrobial days is unclear. We observed a high intermethod correlation (R2=0.99): antimicrobial days were 1.9-fold lower than days of therapy across agents. Individual institutions should correlate these measures.
Pneumonia is a leading cause of mortality and morbidity worldwide with radiographically confirmed pneumonia a key disease burden indicator. This is usually determined by a radiology panel which is assumed to be the best available standard; however, this assumption may introduce bias into pneumonia incidence estimates. To improve estimates of radiographic pneumonia incidence, we applied Bayesian latent class modelling (BLCM) to a large database of hospitalized patients with acute lower respiratory tract illness in Sa Kaeo and Nakhon Phanom provinces, Thailand from 2005 to 2010 with chest radiographs read by both a radiology panel and a clinician. We compared these estimates to those from conventional analysis. For children aged <5 years, estimated radiographically confirmed pneumonia incidence by BLCM was 2394/100 000 person-years (95% credible interval 2185–2574) vs. 1736/100 000 person-years (95% confidence interval 1706–1766) from conventional analysis. For persons aged ⩾5 years, estimated radiographically confirmed pneumonia incidence was similar between BLCM and conventional analysis (235 vs. 215/100 000 person-years). BLCM suggests the incidence of radiographically confirmed pneumonia in young children is substantially larger than estimated from the conventional approach using radiology panels as the reference standard.
The multicomponent Dry Creek site, located in the Nenana Valley, central Alaska, is arguably one of the most important archaeological sites in Beringia. Original work in the 1970s identified two separate cultural layers, called Components 1 and 2, thought to date to the terminal Pleistocene and suggesting that the site was visited by Upper Paleolithic huntergatherers between about 13,000 and 12,000 calendar years before present (cal B.P.). The oldest of these became the typeassemblage for the Nenana complex. Recently, some have questioned the geoarchaeological integrity of the site's early deposits, suggesting that the separated cultural layers resulted from natural postdepositional disturbances. In 2011, we revisited Dry Creek to independently assess the site's age and formation. Here we present our findings and reaffirm original interpretations of clear separation of two terminal Pleistocene cultural occupations. For the first time, we report direct radiocarbon dates on cultural features associated with both occupation zones, one dating to 13,485-13,305 and the other to 11,060-10,590 cal B.P.