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1.
J Pers ; 2024 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-38962876

RESUMO

BACKGROUND: Does experiencing adversity engender kindness, and if so, for whom? Two studies tested the hypothesis that adversity predicts increased pro-social outcomes, and that this relationship is strongest for individuals who view others as good and trustworthy, or benevolent. METHOD: In Study 1, a cross-sectional survey design was utilized, and in Study 2 a longitudinal survey was conducted. RESULTS: In Study 1 (N = 359), the number of lifetime adverse life events was associated with increased volunteering, empathic concern, and self-reported altruism. The association of adversity and altruism was stronger for those with greater benevolence beliefs. In Study 2 (N = 1157), benevolence beliefs were assessed, and in subsequent years, adverse life events were reported. The number of past-year adverse life events predicted more volunteering and charitable involvement, but only among people with high benevolence beliefs. CONCLUSION: Exposure to adversity may be associated with increased pro-social behavior among those with higher benevolence beliefs. In part, this could be due to benevolence beliefs increasing the expectation that one's efforts will be appreciated and reciprocated.

2.
J Urban Health ; 100(4): 666-675, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37526855

RESUMO

Vacant and abandoned buildings are common features in many post-industrial US cities, and are consistent predictors of violence. Demolition programs are regularly employed as an urban land use policy to stabilize housing markets and mitigate public health problems including violence. The objective of this research was to examine the effect of vacant building removals on violent and property crimes in Baltimore, MD from 2014 to 2019. We conducted a difference-in-differences analysis using spatio-temporal Bayesian mixed models on six crime types on block faces with and without building removals, before compared with after removal. There were significant reductions in total, violent crimes (with and without assaults), thefts, and burglaries on block faces with building removals relative to their controls. Total crimes decreased 1.4% per mi2 (CrI: 0.5 - 2.3%), which translates to a relative reduction ~ 2.6 total crimes per mi2 per year. The largest relative decreases in crime were found among assaults (4.9%; CrI: 3.4 - 6.3%) and violent crimes (3.0%; CrI: 1.9 - 4.1%). Building removals were associated with relative reductions in crime in Baltimore City. The relative reductions in crime, at building removals compared to at control vacant lots, were found among assaults and violent crimes, the crimes of greatest public health concern. Building removals provide co-benefits to their communities, and may be considered part of a crime reduction strategy compatible with other approaches. A systematic effort to understand the role of care for remaining vacant lots could further inform our findings, and efforts to further decrease violence and improve community health.


Assuntos
Crime , Violência , Humanos , Baltimore/epidemiologia , Teorema de Bayes , Roubo
3.
J Environ Manage ; 321: 115928, 2022 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-35985262

RESUMO

Harmful algal blooms (HABs) remain a persistent issue that threatens both the physical and economic health of the Western Lake Erie basin (WLEB). Edge-of-field conservation practices are recommended to help manage agricultural runoff and reach phosphorus reduction targets in freshwater systems like the Great Lakes (in the USA). Constructed wetlands (CWs) are a specific edge-of-field practice that could prove critical to these efforts. While we know less about why wetlands are installed or implemented than many other private lands conservation practices, prior research does indicate that offsetting the costs of land taken out of production, or targeting land that is not suitable for production will be critical. Our research builds on these findings by assessing how the perceived productivity of the land moderates the relationship between other potential motivating factors and willingness to install wetlands. We also assess how these critical motivations may vary by the conservation-mindedness of the farmer. Our results indicate that the decision to install a constructed wetland is not entirely dependent on the productivity of the land. Associated beneficial functions (e.g., aesthetics, hunting opportunities) positively influence willingness, even on productive land for those farmers who value conservation. We suggest that program providers emphasize the diverse benefits of constructed wetlands, and target farmers who exhibit stronger conservation identities as they may be more likely to consider wetlands regardless of the productivity of their land.


Assuntos
Lagos , Áreas Alagadas , Fazendeiros , Proliferação Nociva de Algas , Humanos , Fósforo
4.
Behav Res Methods ; 54(5): 2479-2501, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35018608

RESUMO

This paper describes a smart tablet-based drawing app to digitally record participants' engagement with the Rey-Osterrieth complex figure (ROCF) task, a well-characterised perceptual memory task that assesses local and global memory. Digitisation of the tasks allows for improved ecological validity, especially in children attracted to tablet devices. Further, digital translation of the tasks affords new measures, including accuracy and computation of the fine motor control kinematics employed to carry out the drawing Here, we report a feasibility study to test the relationship between two neurodevelopmental conditions: autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). The smart tablet app was employed with 39 adult participants (18-35) characterised for autistic and ADHD traits, and scored using the ROCF perceptual and organisational scoring systems. Trait scores and conditions were predictor variables in linear regression models. Positive correlations were found between the attention-to-detail, attention-switching and communication subscales of the autistic trait questionnaire and organisational scores on the ROCF task. These findings suggest that autistic traits might be linked to differential performance on the ROCF task. Novelty and future applications of the app are discussed.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Transtorno do Espectro Autista , Transtorno Autístico , Aplicativos Móveis , Criança , Adulto , Humanos , Testes Neuropsicológicos
5.
Psychol Sci ; 32(11): 1699-1708, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34705576

RESUMO

Mindfulness appears to promote individual well-being, but its interpersonal effects are less clear. Two studies in adult populations tested whether the effects of mindfulness on prosocial behavior differ according to individuals' self-construals. In Study 1 (N = 366), a brief mindfulness induction, compared with a meditation control condition, led to decreased prosocial behavior among people with relatively independent self-construals but had the opposite effect among those with relatively interdependent self-construals. In Study 2 (N = 325), a mindfulness induction led to decreased prosocial behavior among people primed with independence but had the opposite effect among those primed with interdependence. The effects of mindfulness on prosocial behavior appear to depend on individuals' broader social goals. This may have implications for the increasing popularity of mindfulness training around the world.


Assuntos
Meditação , Atenção Plena , Adulto , Altruísmo , Humanos
6.
Addict Res Theory ; 29(2): 117-128, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33883975

RESUMO

The literature consistently finds that areas with greater density of alcohol outlets (places that sell alcohol) tend to have higher levels of public health harms. However, conflicting findings arise when researchers drill down to identify the type(s) of alcohol outlets with the strongest associations with harms and the mechanisms that explain these associations. These disagreements could be a result of the outdated methods commonly used to quantify the alcohol environment: counts of the number of outlets in an area. This manuscript reviews the events and ideas that shaped the literature on the physical alcohol environment. It then defines the three main methods used to measure alcohol outlet density, conducts an exploratory factor analysis to explore the constructs underlying each method, and presents a novel conceptual framework that summarizes the three methods, their respective underlying constructs, and the setting(s) in which each may be most appropriate. The framework proposes that counts of alcohol outlets measure availability, proximity to the nearest outlet measures accessibility, and spatial access measures measure access, which comprises both availability and accessibility. We argue that researchers should consider using proximity and spatial access measures when possible and outline how doing so may present opportunities to advance theory and the design and implementation of alcohol outlet zoning regulations. Finally, this manuscript draws on research from other areas of the built environment to suggest opportunities to use novel methods to overcome common hurdles (e.g., separating subtypes of outlets, ecologic designs) and a new challenge on the horizon: home delivery.

8.
Int J Obes (Lond) ; 40(6): 921-8, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26984418

RESUMO

BACKGROUND/OBJECTIVE: Obesity and metabolic diseases are at an alarming level globally and increasingly affect children and adolescents. Gastric bypass and other bariatric surgeries have proven remarkably successful and are increasingly performed worldwide. Reduced desire to eat and changes in eating behavior and food choice account for most of the initial weight loss and diabetes remission after surgery, but the underlying mechanisms of altered gut-brain communication are unknown. SUBJECTS/METHODS: To explore the potential involvement of a powerful brainstem anorexia pathway centered around the lateral parabrachial nucleus (lPBN), we measured meal-induced neuronal activation by means of c-Fos immunohistochemistry in a new high-fat diet-induced obese mouse model of Roux-en-Y gastric bypass (RYGB) at 10 and 40 days after RYGB or sham surgery. RESULTS: Voluntary ingestion of a meal 10 days after RYGB, but not after sham surgery, strongly and selectively activates calcitonin gene-related peptide neurons in the external lPBN as well as neurons in the nucleus tractus solitarius, area postrema and medial amygdala. At 40 days after surgery, meal-induced activation in all these areas was greatly diminished and did not reach statistical significance. CONCLUSIONS: The neural activation pattern and dynamics suggest a role of the brainstem anorexia pathway in the early effects of RYGB on meal size and food intake that may lead to adaptive neural and behavioral changes involved in the control of food intake and body weight at a lower level. However, selective inhibition of this pathway will be required for a more causal implication.


Assuntos
Anorexia/fisiopatologia , Modelos Animais de Doenças , Ingestão de Alimentos , Comportamento Alimentar , Derivação Gástrica , Núcleos Parabraquiais/fisiopatologia , Animais , Dieta Hiperlipídica , Imuno-Histoquímica , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Obesidade/patologia , Obesidade/cirurgia , Resposta de Saciedade
9.
Br J Dermatol ; 174(2): 398-401, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26286218

RESUMO

Plasmablastic lymphoma (PBL) is an unusual subtype of non-Hodgkin lymphoma recently classified as a diffuse immunoblastic lymphoma with a plasma-cell immunophenotype. Originally described in the oral cavity of HIV-positive patients, it has also been recognized to occur rarely at other sites. We describe a previously unreported fistulizing presentation of Epstein-Barr virus (EBV)-positive PBL, reviewing its association with HIV-1 infection and its importance as an AIDS-defining malignancy.


Assuntos
Neoplasias do Ânus/patologia , Infecções por Vírus Epstein-Barr/patologia , Soropositividade para HIV , Linfoma Plasmablástico/patologia , Fístula Retal/patologia , Infecções Oportunistas Relacionadas com a AIDS/patologia , Neoplasias do Ânus/virologia , Biópsia , Herpesvirus Humano 4 , Humanos , Masculino , Pessoa de Meia-Idade , Linfoma Plasmablástico/virologia , Fístula Retal/virologia
10.
Br J Cancer ; 111(12): 2297-307, 2014 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-25349970

RESUMO

BACKGROUND: Folate receptor 1 (FOLR1) is expressed in the majority of ovarian carcinomas (OvCa), making it an attractive target for therapy. However, clinical trials testing anti-FOLR1 therapies in OvCa show mixed results and require better understanding of the prognostic relevance of FOLR1 expression. We conducted a large study evaluating FOLR1 expression with survival in different histological types of OvCa. METHODS: Tissue microarrays composed of tumour samples from 2801 patients in the Ovarian Tumour Tissue Analysis (OTTA) consortium were assessed for FOLR1 expression by centralised immunohistochemistry. We estimated associations for overall (OS) and progression-free (PFS) survival using adjusted Cox regression models. High-grade serous ovarian carcinomas (HGSC) from The Cancer Genome Atlas (TCGA) were evaluated independently for association between FOLR1 mRNA upregulation and survival. RESULTS: FOLR1 expression ranged from 76% in HGSC to 11% in mucinous carcinomas in OTTA. For HGSC, the association between FOLR1 expression and OS changed significantly during the years following diagnosis in OTTA (Pinteraction=0.01, N=1422) and TCGA (Pinteraction=0.01, N=485). In OTTA, particularly for FIGO stage I/II tumours, patients with FOLR1-positive HGSC showed increased OS during the first 2 years only (hazard ratio=0.44, 95% confidence interval=0.20-0.96) and patients with FOLR1-positive clear cell carcinomas (CCC) showed decreased PFS independent of follow-up time (HR=1.89, 95% CI=1.10-3.25, N=259). In TCGA, FOLR1 mRNA upregulation in HGSC was also associated with increased OS during the first 2 years following diagnosis irrespective of tumour stage (HR: 0.48, 95% CI: 0.25-0.94). CONCLUSIONS: FOLR1-positive HGSC tumours were associated with an increased OS in the first 2 years following diagnosis. Patients with FOLR1-negative, poor prognosis HGSC would be unlikely to benefit from anti-FOLR1 therapies. In contrast, a decreased PFS interval was observed for FOLR1-positive CCC. The clinical efficacy of FOLR1-targeted interventions should therefore be evaluated according to histology, stage and time following diagnosis.


Assuntos
Biomarcadores Tumorais/biossíntese , Receptor 1 de Folato/biossíntese , Neoplasias Epiteliais e Glandulares/metabolismo , Neoplasias Ovarianas/metabolismo , Carcinoma Epitelial do Ovário , Intervalo Livre de Doença , Feminino , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Análise de Sobrevida , Análise Serial de Tecidos
11.
Nat Genet ; 17(4): 479-82, 1997 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9398855

RESUMO

Poly(ADP-ribose) polymerase (PARP) and DNA-dependent protein kinase (DNA-PK) are DNA break-activated molecules, Although mice that lack PARP display no gross phenotype and normal DNA excision repair, they exhibit high levels of sister chromatid exchange, indicative of elevated recombination rates. Mutation of the gene for DNA-PK catalytic subunit (Prkdc) cases defective antigen receptor V(D)J recombination and arrests B- and T-lymphocyte development in severe combined immune-deficiency (SCID) mice. SCID V(D)J recombination can be partly rescued in T-lymphocytes by either DNA-damaging agents (gamma-irradiation and bieomycin) or a null mutation of the p53 gene, possibly because of transiently elevated DNA repair activity in response to DNA damage or to delayed apoptosis in the absence of p53. To determine whether the increased chromosomal recombination observed in PARP-deficient cells affects SCID V(D)J recombination, we generated mice lacking both PARP and DNA-PK. Here, we show that thymocytes of SCID mice express both CD4 and CD8 co-receptors, bypassing the SCID block. Double-mutant T-cells in the periphery express TCR beta, which is attributable to productive TCR beta joints. Double-mutant mice develop a high frequency of T-cell lymphoma. These results demonstrate that increased recombination activity after the loss of PARP anti-recombinogenic function can rescue V(D)J recombination in SCID mice and indicate that PARP and DNA-PK cooperate to minimize genomic damage caused by DNA strand breaks.


Assuntos
Proteínas de Ligação a DNA , Rearranjo Gênico , Genes de Imunoglobulinas , Região Variável de Imunoglobulina/genética , Linfoma de Células T/genética , Poli(ADP-Ribose) Polimerases/genética , Proteínas Serina-Treonina Quinases/genética , Recombinação Genética , Animais , Diferenciação Celular/genética , Proteína Quinase Ativada por DNA , Linfoma de Células T/enzimologia , Linfoma de Células T/patologia , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Camundongos SCID , Proteínas Nucleares , Baço/metabolismo , Baço/patologia , Timo/metabolismo , Timo/patologia
12.
Environ Sci Technol ; 45(12): 5352-8, 2011 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-21615133

RESUMO

A large-scale permanganate-based in situ chemical oxidation (ISCO) effort has been conducted over the past ten years at a federal Superfund site in Tucson, AZ, for which trichloroethene (TCE) is the primary contaminant of concern. Remediation performance was assessed by examining the impact of treatment on contaminant mass discharge, an approach that has been used for only a very few prior ISCO projects. Contaminant mass discharge tests were conducted before and after permanganate injection to measure the impact at the source-zone scale. The results indicate that ISCO caused a significant reduction in mass discharge (approximately 75%). The standard approach of characterizing discharge at the source-zone scale was supplemented with additional characterization at the plume scale, which was evaluated by examining the change in contaminant mass discharge associated with the pump-and-treat system. The integrated contaminant mass discharge decreased by approximately 70%, consistent with the source-zone-scale measurements. The integrated mass discharge rebounded from 0.1 to 0.2 kg/d within one year after cessation of permanganate injections, after which it has been stable for several years. Collection of the integrated contaminant mass discharge data throughout the ISCO treatment period provided a high-resolution, real-time analysis of the site-wide impact of ISCO, thereby linking source-zone remediation to impacts on overall risk. The results indicate that ISCO was successful in reducing contaminant mass discharge at this site, which comprises a highly heterogeneous subsurface environment. Analysis of TCE sediment concentration data for core material collected before and after ISCO supports the hypothesis that the remaining mass discharge is associated in part with poorly accessible contaminant mass residing within lower-permeability zones.


Assuntos
Recuperação e Remediação Ambiental/métodos , Poluentes Químicos da Água/análise , Arizona , Sedimentos Geológicos/química , Manganês/análise , Peso Molecular , Oxirredução , Solo/química , Tricloroetileno/análise , Abastecimento de Água/análise
13.
Colorectal Dis ; 13(2): 161-5, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19888954

RESUMO

AIM: The safety, feasibility and short-term outcomes of laparoscopic resection were assessed in patients with recurrent ileocolic Crohn's disease. METHOD: A consecutive series of patients was identified from a prospectively collated database. Data included patient demographics, previous medical and surgical treatment, operative details and postoperative course. Data from the original index open operation were collected retrospectively by review of the case notes. RESULTS: Between 2005 and 2009, 27 patients [21 women, mean (range) age 31 years (16-51 years)] underwent laparoscopic resection for recurrent ileocolic Crohn's disease. All had histologically confirmed recurrent disease at the ileocolic anastomosis. Five (18.5%) patients required extended resection for Crohn's colitis, three (11.1%) had fistulating disease and one (3.4%) patient had a psoas abscess. The median (range) operative time was 110 min (70-170 min) with a conversion rate of two (7.4%) of 27 patients. The length of stay was 4 days (2-7 days) with time to return to work or full activity of 3.5 weeks (2-7 weeks). CONCLUSION: Laparoscopic resection of recurrent ileocolic Crohn's disease is safe, feasible and associated with short-term benefits.


Assuntos
Doença de Crohn/cirurgia , Laparoscopia , Adolescente , Adulto , Doença de Crohn/complicações , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recidiva , Estudos Retrospectivos , Resultado do Tratamento
14.
J Trauma ; 70(3): 652-63, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21610356

RESUMO

BACKGROUND: Trauma is a leading cause of death worldwide and is thus a major public health concern. Previous studies have shown that limiting the amount of fluids given by following a strategy of permissive hypotension during the initial resuscitation period may improve trauma outcomes. This study examines the clinical outcomes from the first 90 patients enrolled in a prospective, randomized controlled trial of hypotensive resuscitation, with the primary aim of assessing the effects of a limited transfusion and intravenous (IV) fluid strategy on 30-day morbidity and mortality. METHODS: Patients in hemorrhagic shock who required emergent surgery were randomized to one of the two arms of the study for intraoperative resuscitation. Those in the experimental (low mean arterial pressure [LMAP]) arm were managed with a hypotensive resuscitation strategy in which the target mean arterial pressure (MAP) was 50 mm Hg. Those in the control (high MAP [HMAP]) arm were managed with standard fluid resuscitation to a target MAP of 65 mm Hg. Patients were followed up for 30 days. Intraoperative fluid requirements, mortality, postoperative complications, and other clinical data were prospectively gathered and analyzed. RESULTS: Patients in the LMAP group received a significantly less blood products and total i.v. fluids during intraoperative resuscitation than those in the HMAP group. They had significantly lower mortality in the early postoperative period and a nonsignificant trend for lower mortality at 30 days. Patients in the LMAP group were significantly less likely to develop immediate postoperative coagulopathy and less likely to die from postoperatively bleeding associated with coagulopathy. Among those who developed coagulopathy in both groups, patients in the LMAP group had significantly lower international normalized ratio than those in the HMAP group, indicating a less severe coagulopathy. CONCLUSIONS: Hypotensive resuscitation is a safe strategy for use in the trauma population and results in a significant reduction in blood product transfusions and overall IV fluid administration. Specifically, resuscitating patients with the intent of maintaining a target minimum MAP of 50 mm Hg, rather than 65 mm Hg, significantly decreases postoperative coagulopathy and lowers the risk of early postoperative death and coagulopathy. These preliminary results provide convincing evidence that support the continued investigation and use of hypotensive resuscitation in the trauma setting.


Assuntos
Transtornos da Coagulação Sanguínea/prevenção & controle , Transfusão de Sangue/estatística & dados numéricos , Traumatismo Múltiplo/cirurgia , Ressuscitação/métodos , Choque Hemorrágico/terapia , Adulto , Transtornos da Coagulação Sanguínea/mortalidade , Transtornos da Coagulação Sanguínea/fisiopatologia , Distribuição de Qui-Quadrado , Feminino , Hidratação/métodos , Humanos , Hipotensão/fisiopatologia , Masculino , Monitorização Intraoperatória , Traumatismo Múltiplo/mortalidade , Traumatismo Múltiplo/fisiopatologia , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/fisiopatologia , Modelos de Riscos Proporcionais , Estudos Prospectivos , Análise de Regressão , Choque Hemorrágico/mortalidade , Choque Hemorrágico/fisiopatologia , Taxa de Sobrevida
15.
JDR Clin Trans Res ; 6(4): 368-381, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33030085

RESUMO

OBJECTIVES: To conduct a systematic review and meta-analysis to assess whether individuals with nonsyndromic orofacial clefts (OCs) display a higher frequency of dental anomalies (DAs) when compared with individuals without OCs. METHODS: A literature search of indexed databases (PubMed, Cochrane, Web of Science, Embase, Scopus, and LILACS) was conducted without language restriction up to and including February 1, 2020. Cross-referencing was used to further identify articles. Several cleft teams across the United States and Europe were contacted to obtain unpublished data. The eligibility criteria were observational studies with original data that statistically compared individuals with OC without syndromes and those without OC on any type of DA in primary and/or permanent dentition. Random effects meta-analysis through the Mantel-Haenszel estimator was used to evaluate the association between OC and DA based on odds ratios (ORs) with 95% confidence intervals (CIs). RESULTS: The literature search generated 933 records, and 75 full-text articles were reviewed. Twenty-six studies encompassing 15,213 individuals met the inclusion criteria. The meta-analysis revealed statistically significant associations between OC and agenesis (OR, 14.2; 95% CI, 9.4 to 21.3), supernumerary teeth (OR, 5.7; 95% CI, 3.3 to 9.7), developmental enamel defects (OR, 5.6; 95% CI, 3.5 to 9.0), microdontia (OR, 14.8; 95% CI, 4.0 to 54.6), peg-shaped anterior teeth (OR, 12.2; 95% CI, 3.6 to 41.2), taurodontism (OR, 1.7; 95% CI, 1.0 to 2.7), tooth malposition and/or transposition (OR, 5.6; 95% CI, 2.8 to 11.5), tooth rotation (OR, 3.2; 95% CI, 1.3 to 8.2), and tooth impaction (OR, 3.6; 95% CI, 1.1 to 12.2). The OR estimates of the reviewed studies exhibited significant heterogeneity (P < 0.0001). No association was observed between OC and fusion and/or gemination. CONCLUSION: Within the limitations of this study, the available evidence suggests that individuals with OCs are more likely to present with a range of DAs than their unaffected peers. KNOWLEDGE TRANSFER STATEMENT: The findings of the current review suggest that individuals with orofacial clefts (OCs) are more likely to present with a range of dental anomalies than their unaffected peers. Understanding the association between OCs and dental anomalies is essential in guiding clinicians during treatment-planning procedures and is important in raising our awareness of the possible need for future dental treatment for patients with OCs.


Assuntos
Fenda Labial , Fissura Palatina , Anormalidades Dentárias , Dente Supranumerário , Fenda Labial/epidemiologia , Fissura Palatina/epidemiologia , Dentição Permanente , Humanos , Anormalidades Dentárias/epidemiologia
16.
Nat Commun ; 12(1): 6217, 2021 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-34728617

RESUMO

Natural sounds, and bird song in particular, play a key role in building and maintaining our connection with nature, but widespread declines in bird populations mean that the acoustic properties of natural soundscapes may be changing. Using data-driven reconstructions of soundscapes in lieu of historical recordings, here we quantify changes in soundscape characteristics at more than 200,000 sites across North America and Europe. We integrate citizen science bird monitoring data with recordings of individual species to reveal a pervasive loss of acoustic diversity and intensity of soundscapes across both continents over the past 25 years, driven by changes in species richness and abundance. These results suggest that one of the fundamental pathways through which humans engage with nature is in chronic decline, with potentially widespread implications for human health and well-being.


Assuntos
Acústica , Aves/fisiologia , Vocalização Animal/fisiologia , Animais , Biodiversidade , Aves/classificação , Conservação dos Recursos Naturais , Europa (Continente) , Humanos , América do Norte , Dinâmica Populacional , Estações do Ano , Som , Vocalização Animal/classificação
17.
J Evol Biol ; 23(10): 2151-2162, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20796135

RESUMO

Among parasitic platyhelminths with complex life cycles, it has been well documented that transmission opportunities are the main forces shaping the diversity of life-history traits and parasite developmental strategies. While deviations in the development pathway usually involve shortening of life cycles, their extension may also occur following perception of remaining time by parasites. Polystoma gallieni, the monogenean parasite of Hyla meridionalis, is able to trigger two alternative developmental strategies depending on the physiological stage of the tadpoles upon which larvae attach. The distribution and reproductive outputs of both resulting phenotypes were surveyed to address questions about the dynamics of transmission in natural environments. Because modifications in the completion of life cycles can have drawbacks which may perturb the dynamic equilibrium of the resulting host-parasite systems, experimental infestations were also performed to assess parasite-parasite interactions. Our results suggest that the bladder adult phenotype, which involves transmission between frogs and tadpoles, is supplied secondarily by the branchial phenotype which involves transmission between tadpoles and metamorphs. They also support the occurrence of finely tuned trade-offs between hosts and parasites and highlight positive trends behind the extension of direct life cycles, in which host-derived signals account for the remaining time to achieve parasitic transmission.


Assuntos
Anuros/parasitologia , Helmintíase Animal/transmissão , Interações Hospedeiro-Parasita , Platelmintos/crescimento & desenvolvimento , Animais , Região Branquial/parasitologia , Feminino , França/epidemiologia , Helmintíase Animal/epidemiologia , Larva/parasitologia , Masculino , Oviparidade , Fenótipo , Dinâmica Populacional , Bexiga Urinária/parasitologia
18.
Colorectal Dis ; 12(10): 1007-12, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19438893

RESUMO

AIM: The aim of the study was to identify the trend towards laparoscopic resection in the practice of one surgeon and to determine whether the default approach to all colorectal procedures could be by means of minimally invasive techniques with an associated low rate of conversion. METHOD: A prospective database of primary colorectal resections under the care of one colorectal surgeon collected between July 2003 and December 2008 was analysed to determine the trend in the use of the laparoscopic approach and the rate of conversion of an intention-to-treat policy for laparoscopic procedures. Patients with recurrent rectal or colonic malignancy were excluded from the study. RESULTS: A total of 598 patients underwent elective colorectal resection of which 371 (62%) were carried out laparoscopically with a rate of conversion of 3.2%. The proportion of all colorectal resections that were undertaken laparoscopically in the first 1 year was 26% (22/85) (no conversions). This proportion rose to 100% (127/127) in the fifth year of the study of which 4.0% were converted. The introduction of more complex procedures did not have an adverse effect on the trend towards more laparoscopic resections The commencement of a laparoscopic colorectal fellowship in 2006 was associated with a marked increase in the number of laparoscopic cases. CONCLUSION: A conscious decision to make the laparoscopic approach the default for all colorectal resections can be achieved safely with a low conversion rate. This can be achieved within the context of training a 'novice' laparoscopic colorectal surgeon.


Assuntos
Cirurgia Colorretal/tendências , Laparoscopia/tendências , Feminino , Humanos , Masculino , Recidiva Local de Neoplasia/cirurgia , Complicações Pós-Operatórias , Estudos Prospectivos , Resultado do Tratamento
19.
Int J STD AIDS ; 21(5): 342-5, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20498104

RESUMO

We conducted a cross-sectional study with 208 HIV-uninfected and 188 HIV-infected women in Uganda and Zimbabwe to investigate differences in median CD4 counts. Absolute CD4 counts were determined by flow cytometry. Multivariate analyses were used to examine the association of country and HIV-infection status on CD4 counts. Median CD4 counts were significantly lower in Zimbabwe than in Uganda overall (649 and 783 cells/mm(3), P = 0.009) and among HIV-infected women (470 and 614 cells/mm(3), P = 0.003). In separate multivariable models, CD4 counts were significantly lower in Zimbabwe in HIV-uninfected (P = 0.014) and infected (P < 0.001) women, controlling for age, contraceptive method, education and living with partner status. In a model combining HIV-uninfected and infected women, there was no significant interaction between country and HIV infection status (P = 0.344), suggesting that the relationship between country and CD4 count was not significantly modified by HIV infection status. This study reinforces the importance of establishing country-specific reference CD4 levels as CD4 count continues to be used as a key biomarker in clinical decision-making for HIV-infected individuals in sub-Saharan Africa.


Assuntos
Contagem de Linfócito CD4 , Infecções por HIV/imunologia , Adolescente , Adulto , Anticoncepcionais Orais , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Humanos , Gravidez , Estudos de Amostragem , Uganda/epidemiologia , Adulto Jovem , Zimbábue/epidemiologia
20.
Int J Drug Policy ; 82: 102808, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32531514

RESUMO

Greater densities of alcohol outlets are associated with greater incidence of alcohol-related harms. In Australia, public health advocates aiming to limit alcohol availability expend significant energy objecting to new outlets in licensing and planning hearings. This study identifies and reviews the key scientific arguments put forward by industry and public health representatives in liquor and planning hearings to determine the factors that contribute to decisions by the presiding authority and to identify ways forward for researchers wishing to facilitate harm minimisation through these regulatory forums. Scientific evidence presented in 23 cases from Victoria, New South Wales and Western Australia between 2010 and 2018 were assessed using directed content analysis. Cases were identified through the AustLii and Westlaw online databases. The full transcripts of two cases that were identified as representative of the scientific arguments presented in other included cases were also reviewed. Four main arguments that industry used during hearings were identified-causal inference, non-linearities, differentiation and risk mitigation. These arguments were used across many included hearings and raised fundamental questions that public health evidence was often ill-equipped to respond to. The overall success of industry arguments in liquor and planning hearings highlighted the challenges of applying epidemiological evidence to individual case studies. These findings have particular implications and will be of use for researchers and public health experts participating in future licensing hearings, especially those wishing to prevent alcohol-related harm through regulatory mechanisms such as state licensing authorities (i.e. courts).


Assuntos
Consumo de Bebidas Alcoólicas , Saúde Pública , Bebidas Alcoólicas , Humanos , New South Wales , Vitória , Austrália Ocidental
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