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1.
J Environ Manage ; 352: 120111, 2024 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-38262283

RESUMO

Changing humanity's relationship with the ocean is identified as one of ten key challenges in the UN Decade of Ocean Science for Sustainable Development (2021-2030). Marine citizenship is one potential policy approach for reducing anthropogenic harms to the ocean and promoting ocean recovery, and there is a need to better understand marine citizenship motivating factors and their interactions. To contribute to a more holistic understanding, we approached this problem using an interdisciplinary, mixed methodology, which prioritised the voices and experiences of active marine citizens. An online survey and semi-structured interviews were conducted to examine factors spanning environmental psychology (values, environmental identity) and human geography (place attachment and dependency). Our data uncovered a unique marine place attachment, or thalassophilia, which is a novel conceptualisation of the human capacity to bond with a type of place beyond human settlements or defined localities. It is the product of strong emotional responses to the sensorial experience of the ocean and shared social or cultural understanding of ocean place identifications. A key driver of deeper marine citizenship is marine place dependency, and it is positively influence by stimulation and non-conformity values, environmental identity, and thalassophilia. We map significant motivating factors to identity process theory and describe a novel marine identity concept. We propose this as an operational mechanism of marine citizenship action, potentially filling the value- and knowledge-action gaps in the context of marine environmental action. This research provides a cornerstone in marine citizenship research by analysing together in one study a multitude of variables, which cross human-ocean relationships and experiences. The identification and characterisation of thalassophilia and marine identity process theory will enable research and practice to move forwards with a clearer framework of the role of the ocean as a place in environmental action.


Assuntos
Cidadania , Desenvolvimento Sustentável , Humanos , Inquéritos e Questionários
2.
J Environ Manage ; 114: 84-91, 2013 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-23220604

RESUMO

Marine protected areas (MPAs) are a primary policy instrument for managing and protecting coral reefs. Successful MPAs ultimately depend on knowledge-based decision making, where scientific research is integrated into management actions. Fourteen coral reef MPA managers and sixteen academics from eleven research, state and federal government institutions each outlined at least five pertinent research needs for improving the management of MPAs situated in Australian coral reefs. From this list of 173 key questions, we asked members of each group to rank questions in order of urgency, redundancy and importance, which allowed us to explore the extent of perceptional mismatch and overlap among the two groups. Our results suggest the mismatch among MPA managers and academics is small, with no significant difference among the groups in terms of their respective research interests, or the type of questions they pose. However, managers prioritised spatial management and monitoring as research themes, whilst academics identified climate change, resilience, spatial management, fishing and connectivity as the most important topics. Ranking of the posed questions by the two groups was also similar, although managers were less confident about the achievability of the posed research questions and whether questions represented a knowledge gap. We conclude that improved collaboration and knowledge transfer among management and academic groups can be used to achieve similar objectives and enhance the knowledge-based management of MPAs.


Assuntos
Conservação dos Recursos Naturais , Recifes de Corais , Academias e Institutos , Austrália , Governo , Pesquisa
3.
Science ; 203(4385): 1122-3, 1979 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-17776047

RESUMO

A G(2|)factor in the cotyledons of Pisum sativum, which arrests the growth of cells in both roots and shoots in the G(2) stage of the cell cycle, has been isolated and identified as trigonelline (N-methylnicotinic acid). To our knowledge, trigonelline is the first hormone that effects cell arrest in complex tissues of plants and animals to be chemically identified.

4.
Int J Oncol ; 33(1): 145-51, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18575760

RESUMO

This retrospective study looks at the differences between adolescents (15-19 years) and young adults (20-25 years), diagnosed with Hodgkin lymphoma and treated at the same adult institution. Outcome according to risk category was evaluated, and although there were no significant differences in the whole cohort, or low and intermediate-risk categories, high-risk adolescent patients had a significantly worse outcome compared to that of young adults. In these high-risk patients, 5-year event free survival was 43.6% in adolescents compared to 58.7% in young adults (log-rank survival p=0.03), and the 5-year overall survival in adolescents was 66.7% compared to 84.4% in the young adults (p=0.04). Possible contributing factors to this inferior outcome in these high-risk patients were explored. The difference could not be explained in terms of differences in histological subtype (p=0.5), proportion of patients with bulky (p=0.6) or extranodal disease (p=0.6), initial treatment received (chemotherapy alone compared to combination therapy, p=0.2), or proportion proceeding to high-dose treatment after initial treatment failure (p=0.6). There was no difference in the documented number of delays, dose reductions or episodes of non-compliance during initial treatment in the two high-risk age groups. A significantly greater proportion of high-risk adolescents had primary progressive disease (PPD) [eight high-risk adolescents (33.3%) compared to two high-risk young adults (7.7%), p=0.02].


Assuntos
Doença de Hodgkin/mortalidade , Adolescente , Adulto , Fatores Etários , Doença de Hodgkin/terapia , Humanos , Estudos Retrospectivos , Risco
5.
Oncol Rep ; 20(4): 953-6, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18813839

RESUMO

Follicular lymphoma can transform into diffuse large B cell lymphoma, which is usually associated with rapid disease progression, refractoriness to treatment and a poor outcome. We report the 25-year unselected experience of a UK provincial lymphoma treatment centre. This comprises of one of the largest series ever studied. Sixty-three patients were identified (56 initially presented as follicular lymphoma, 5 with 'transformed' lymphoma and 2 with follicular and transformed lymphoma from different biopsy sites). The median age at presentation was 54 years (range 32-76). The median time to transformation was 43 months (range 0-172). For all patients, the median overall survival was 76 months (range 8-254) and from transformation 10 months (range 1-166); 46 of 63 patients have died. For those whose transformation was initially treated with CHOP chemotherapy 10 were in complete remission (CR) and 14 were deceased (median survival 24, range 2-114 months). Five patients had high-dose chemotherapy and 3 were alive (at 25, 36 and 137 months). We conclude that CHOP chemotherapy (probably with rituximab) is a reasonable first treatment in fit patients and high dose chemotherapy with autologous stem cell support deserves further study.


Assuntos
Linfoma Folicular/tratamento farmacológico , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Ciclofosfamida/uso terapêutico , Doxorrubicina/uso terapêutico , Feminino , Humanos , Linfoma Folicular/mortalidade , Masculino , Pessoa de Meia-Idade , Prednisona/uso terapêutico , Prognóstico , Resultado do Tratamento , Vincristina/uso terapêutico
6.
Hum Gene Ther ; 10(12): 1941-51, 1999 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-10466628

RESUMO

Adoptive immunotherapy with ex vivo-expanded antigen-specific cytotoxic T lymphocytes (CTLs) has been shown to clear viral infections and eliminate tumors in murine models. Clinical trials have also reported promising data for the use of adoptive immunotherapy to treat cytomegalovirus (CMV) and Epstein-Barr viral (EBV) infections in bone marrow transplant recipients. For these indications, the need for ex vivo-expanded CTLs is often short lived, until the immune system is reconstituted by the donor transplant. In chronic disease settings, increased longevity of adoptively transferred CTLs and generation of memory will be necessary. The additional administration of helper functions normally supplied by antigen-specific T helper (Th) cells will probably be essential for long-term survival of adoptively transferred CTLs. Toward this goal of supplying helper functions, we transduced human CTLs with chimeric GM-CSFR/IL-2R receptors that deliver an IL-2 signal on binding GM-CSF. Clones expressing the chimeric receptors proliferated in response to GM-CSF. Stimulation with antigen induced GM-CSF production and resulted in an autocrine growth loop such that the CTL clones proliferated in the absence of exogenous cytokines. This type of genetic modification has potential for increasing the circulating half-life and, by extension, the efficacy of ex vivo-expanded CTLs.


Assuntos
Receptores de Fator Estimulador das Colônias de Granulócitos e Macrófagos/genética , Receptores de Interleucina-2/genética , Proteínas Recombinantes de Fusão/genética , Retroviridae/genética , Linfócitos T Citotóxicos/metabolismo , Transdução Genética , Animais , Citometria de Fluxo , Vetores Genéticos , Fator Estimulador de Colônias de Granulócitos e Macrófagos/metabolismo , Humanos , Imunoterapia Adotiva , Ativação Linfocitária , Camundongos , Receptores de Fator Estimulador das Colônias de Granulócitos e Macrófagos/metabolismo , Receptores de Interleucina-2/metabolismo , Proteínas Recombinantes de Fusão/metabolismo , Linfócitos T Citotóxicos/virologia
7.
Arch Neurol ; 41(9): 985-7, 1984 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-6477233

RESUMO

We describe a patient with an isolated mesencephalic dorsal tegmental infarct affecting the oculomotor nuclear complex and medial longitudinal fasciculus, documented by high-resolution computed tomography, after undergoing percutaneous transluminal coronary artery angioplasty. Clinically, the patient exhibited bilateral ptosis, bilateral internuclear ophthalmoplegia, transient convergence retractory nystagmus, and minimal somnolence. We believe the combined clinical and radiological findings favor the presence of a caudal, dorsal, and paramedian embolic infarct in the territory of the paramedian branches of the mesencephalic artery as the most likely mechanism for these exceptional findings and correlate them with Warwick's scheme of the oculomotor subnuclei.


Assuntos
Infarto Cerebral/diagnóstico por imagem , Nervo Oculomotor , Humanos , Embolia e Trombose Intracraniana/diagnóstico por imagem , Masculino , Mesencéfalo , Pessoa de Meia-Idade , Nervo Oculomotor/diagnóstico por imagem , Radiografia
8.
Int J Radiat Oncol Biol Phys ; 15(4): 901-6, 1988 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-3141319

RESUMO

Advanced gynecologic neoplasms continue to pose major therapeutic problems; 22,500 deaths were estimated for 1987. Between December 1983 and October 1985, there were 25 patients evaluated at our institution who on joint evaluation by the radiation oncologist and gynecologic oncologists were found to have extensive disease not amenable to standard therapy. Patients were to be treated by a combined modality approach with Mitomycin-C and 5-Fluorouracil given concomitantly with radiotherapy. Nineteen patients were treated definitively and six patients were treated with palliative intent (24 primary, 1 recurrent). The patients ranged in age from 27 to 90 years with a mean of 57.3 and a median of 57. Primary sites at presentation were: cervix--14 patients, vagina--7 patients, and vulva--4 patients. The initial FIGO stages at time of the initial diagnosis were: Stage I--1 (recurrent), Stage II--4, Stage III--15, and Stage IV--5. Chemotherapy consisted of 5-fluorouracil 1 gm/m2 given continuous infusion for 4 days with Mitomycin-C 10 mg/m2 IV push on day 1. Radiation therapy was started on day 1. Only 2 of 25 patients (8%) required chemotherapy reductions. All 25 patients received mega-voltage irradiation. The external beam dose range was 2000-6500 cGy and 14/25 patients received intracavitary or interstitial therapy. In the definitive patient group, there was no reduction in the therapeutic dose. Only four patients underwent surgical therapy. With a minimum follow-up of 8 months and a median follow-up of 28 months, the survival for the entire population was 56%. Fourteen of the 19 patients (74%) treated definitively are surviving with 12 patients having no evidence of disease. Survival by site in the definitive therapy group was cervix--70%, vulva--100%, and vagina--66%. The overall response rate was 84% at 3 and 9 months (3 months; CR--36%, PR--48%, and 9 months; CR--60%, PR--24%). There were no local recurrences in the 12 patients who achieved a complete response. Three patients died of metastatic disease alone and the overall local control was 60%. Evaluation of therapeutic side effects was performed. Hematologic analysis by the Southeastern Oncology Group criteria showed neutropenia in 14 patients (1--life-threatening, 2--severe, and 11 patients--mild/moderate) and thrombocytopenia was observed in 11 patients (all mild or moderate). All hematologic complications resolved. Acute complications did not appear increased except for the addition of mild oral mucositis (12 patients). Six patients demonstrated late effects with only 2 patients felt to have severe complications.(ABSTRACT TRUNCATED AT 400 WORDS)


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias do Colo do Útero/terapia , Neoplasias Vaginais/terapia , Neoplasias Vulvares/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Terapia Combinada , Feminino , Fluoruracila/administração & dosagem , Humanos , Pessoa de Meia-Idade , Mitomicina , Mitomicinas/administração & dosagem , Prognóstico , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/radioterapia , Neoplasias Vaginais/tratamento farmacológico , Neoplasias Vaginais/radioterapia , Neoplasias Vulvares/tratamento farmacológico , Neoplasias Vulvares/radioterapia
9.
Arch Ophthalmol ; 96(6): 1082-3, 1978 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-655945

RESUMO

We noted that the adjustable fixation device present on some models of the Goldmann-Weekers dark adaptometer has a calibration error that results in a consistent and predictable overestimation of retinal eccentricity. The error occurs because the eye being tested is not in the geometric center of the projection sphere. The true retinal locus may be computed by trigonometric analysis. A conversion table is available for reference.


Assuntos
Adaptação à Escuridão , Oftalmologia/instrumentação , Retina , Calibragem , Humanos , Matemática
10.
Am J Ophthalmol ; 111(1): 56-8, 1991 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-1985491

RESUMO

Six eyes of three patients with severe body burns had intraocular pressure ranging from 37.2 to 81.7 mm Hg. Because of extreme orbital congestion, lateral canthotomies were performed, which caused abrupt decrease in intraocular pressure (range, 17.6 to 49.0 mm Hg). None of the patients had a history of glaucoma, narrow angles, or any precondition for a pupillary block mechanism. Two patients survived and neither had optic nerve damage or increased intraocular pressure after hospital discharge. Tonometry should be performed in patients with severe burns and orbital congestion, especially in those patients receiving large amounts of intravenous fluids. Lateral canthotomies may be of benefit to relieve potentially damaging high intraocular pressure.


Assuntos
Queimaduras Oculares/fisiopatologia , Pressão Intraocular , Adulto , Idoso , Queimaduras Oculares/terapia , Pálpebras/cirurgia , Hidratação , Humanos , Masculino , Pessoa de Meia-Idade , Tonometria Ocular
11.
Am J Ophthalmol ; 116(4): 431-6, 1993 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-8213972

RESUMO

Disagreement exists as to whether the depth of anisometropic amblyopia correlates with the degree of anisometropia. We reviewed the charts of 303 consecutive patients with the diagnosis of amblyopia. Thirty-five patients with untreated anisometropia without strabismus were identified. The best-corrected visual acuities, manifest refractions, and autorefractions were recorded. The differences in spherical equivalent, root mean square, and an index of anisometropia, which we defined, were calculated. The depth of amblyopia was strongly correlated to all three measures of anisometropia for both hyperopic and myopic individuals. Our new index of anisometropia was an excellent predictor of the depth of amblyopia.


Assuntos
Ambliopia/fisiopatologia , Anisometropia/fisiopatologia , Refração Ocular , Adolescente , Adulto , Idoso , Criança , Humanos , Hiperopia/fisiopatologia , Pessoa de Meia-Idade , Miopia/fisiopatologia , Acuidade Visual
12.
J Cataract Refract Surg ; 17(6): 790-3, 1991 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-1774649

RESUMO

Pretreatment with topical nonsteroidal anti-inflammatory drugs is common practice to maintain maximal pupil dilation for cataract surgery. Most surgeons also inject a cholinergic agent intracamerally for miosis after intraocular lens insertion. We evaluated the effects of topical suprofen and flurbiprofen on the miosis induced by anterior chamber irrigation with either acetylcholine or carbachol. One eye of 30 pigmented rabbits was dilated with cyclopentolate HCl and phenylephrine HCl. Three groups, each composed of ten eyes, received flurbiprofen, suprofen, or a control. In each group, five eyes received acetylcholine by anterior chamber irrigation and five received carbachol. Pupil diameters were measured with calipers before and five minutes after irrigation by an observer unaware of the treatment regimen. Irides irrigated with carbachol constricted less than those irrigated with acetylcholine (P = .016). In anterior chambers irrigated with carbachol, suprofen was associated with less miosis than either tears (P = .005) or flurbiprofen (P = .009); however, if the infusion was performed with acetylcholine, no differences between the three groups were noted (P = .44).


Assuntos
Câmara Anterior/efeitos dos fármacos , Flurbiprofeno/farmacologia , Pupila/efeitos dos fármacos , Suprofeno/farmacologia , Acetilcolina/farmacologia , Administração Tópica , Animais , Carbacol/farmacologia , Flurbiprofeno/administração & dosagem , Iris/efeitos dos fármacos , Coelhos , Suprofeno/administração & dosagem , Irrigação Terapêutica
13.
Environ Pollut ; 61(1): 47-57, 1989.
Artigo em Inglês | MEDLINE | ID: mdl-15092374

RESUMO

Rainfall acidity response functions for crop yield and growth are necessary to predict the overall impacts on crop yields of ambient and/or anticipated levels of acidic rain. The experiment described herein was performed at Brookhaven National Laboratory during 1984 and 1985 to determine the effects of simulated rainfalls of pH 5.6, 4.4, 4.1 and 3.3 on seed yields of four cultivars of field-grown soybeans (Glycine max Merrill). Soybeans were chosen because previous results suggested that certain varieties of this crop are sensitive to rainfall acidity and because they are an economically important crop in the USA. Sixteen plots per treatment were used. Plants were grown using standard agronomic practices under automatically movable exclusion shelters which minimize changes in the plant's microclimate. Analysis of variance of seed yields of the four cultivars showed significant treatments for all four cultivars. For all cultivars, seed yields were lower when exposed to simulated rainfalls of pH 4.4, 4.1 and 3.3 compared with rainfalls of pH 5.6. Compared with pH 5.6 rainfall (controls), yields of Amsoy exposed to pH 4.4, 4.1 and 3.3 were lower by 13, 11 and 12%, respectively. The percentage yield reductions for Asgrow, Corsoy and Hobbit were not as great as those of Amsoy. Averaged over all cultivars tested, there was a 9% seed reduction for plants exposed to simulated rain at pH 4.1 (comparable to ambient) compared with pH 5.6.

14.
Environ Exp Bot ; 45(1): 85-94, 2001 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-11165634

RESUMO

Terminal meristems are responsible for all primary growth of roots. It has been asserted that all cells of root meristems are actively dividing and that the stem cell (proliferative) population expands exponentially. Lengths of cells in roots just proximal to the root cap/root initial boundary were used to determine the numbers of cortex and stele cells in the meristem. Meristem cells were defined as cells that did not have significantly different cell lengths from initial cells at the boundary. Data show that, for five of the six species (Allium cepa, Pisum sativum, Pyrus communis, Triticum aestivum, Vicia faba, and Zea mays) tested, only the first 15 stele and the first 10-35 cortex cells in median longitudinal sections would be in the meristem. For T. aestivum, no discrete meristem was found because all cells proximal to initial cells were longer than initial cells. In addition to this subject area, distributions of lengths of cells in the root meristem using this definition, for the six species were compared with a theoretical cell-age distribution for exponentially dividing cells, to determine if distributions of cell lengths were similar to a theoretical distribution of exponentially dividing cells. For all species tested, distributions of cell lengths were not similar to a theoretical cell-age distribution. From the data of this study with six plant species, we conclude that either contiguous proliferative cell populations of root meristems are very small or the proliferative cell population is not continuous. In addition, such populations do not resemble a theoretical exponential cell-age distribution. Moreover, it seems that the proliferative capacities of cells within terminal root segments differ markedly among species and are not easily characterized.

15.
Environ Exp Bot ; 46(1): 47-53, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11378172

RESUMO

Cactaceae are a diverse group of plants with a wide variety of morphologies and reproductive strategies. Many species have segmented stems in which terminal cladodes may be separated from main stem cladodes with varying amounts of resistance. Previous results demonstrated that lignified xylem cells in tensile portions of stem joints provide the main resistance to separation of cladodes within cactus plants. The purpose of the present study was to determine if stem joints of Opuntia laevis would produce additional lignified xylem cells in response to additional externally applied stresses. Normal average stress levels, which accompany the addition of a new cladode, were applied to 12 plants. In contrast, double the average stress levels were applied to 13 other plants. After exposure to the two stress regimens for 6 months, the amount and location of lignified xylem cells in joint segments were similar for both stress treatments. So, although the results support the hypothesis that lignified xylem cells act as the main resistance to stress at joints of cladodes, doubling the normal amount of applied stress was insufficient to alter the amount or location of lignified xylem cells in stem joints. These results indicate that normal amounts of lignified xylem cells can resist up to two times the normal amount of stress for 6 months without producing additional lignified xylem cells.

16.
J Pediatr Ophthalmol Strabismus ; 17(1): 29-36, 1980.
Artigo em Inglês | MEDLINE | ID: mdl-7365646

RESUMO

Corneoscleral limbal masses were created in ten rabbit eyes and upper eyelid colobomas were produced in an additional ten eyes. The resultant changes in corneal curvature were recorded over a one-month period using streak retinoscopy and photokeratometry. By these methods, we have determined that forces at or near the corneoscleral limbus can produce changes in the corneal curvature that lead to refractive errors primarily of the astigmatic variety. There is a shift of the axis of astigmatism towards the meridian 90 degrees away from the external force or an increase of astigmatism along the meridian where the force was exerted. In this study, corneal curvature changed significantly in the coloboma and epibulbar mass groups when compared to the control group. This study supported a causal relationship between soft tissue anomalies and astigmatic refractive errors seen clinically in certain syndromes, such as Goldenhar and mandibulo-facial dysostosis. These findings suggest that patients observed with periorbital soft tissue defects may be at risk for the development of unilateral anisometropic refractive errors and secondary amblyopia. Recognition of this entity is essential in order that adequate therapy can be instituted at an early age.


Assuntos
Astigmatismo/etiologia , Coloboma/complicações , Modelos Animais de Doenças , Síndrome de Goldenhar/complicações , Disostose Mandibulofacial/complicações , Animais , Túnica Conjuntiva/cirurgia , Córnea/cirurgia , Cisto Dermoide/complicações , Neoplasias Oculares/complicações , Pálpebras/cirurgia , Humanos , Coelhos , Refração Ocular , Esclera/cirurgia
20.
Am J Ophthalmol ; 113(2): 217-8, 1992 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-1550199
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