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With many coral reef areas being degraded whether by anthropogenic or natural causes, a search is on for resilient species of corals that can restore coral cover where needed, if coral reefs are to continue to provide adequate ecosystem services. A series of experiments were undertaken in two sites with different environmental attributes and substrates in a lagoonal area in the northwestern Philippines to test the potentials of a local species, Porites cylindrica, for reef rehabilitation. With the use of asexual fragmentation of donor colonies, different treatments were tested, particularly to determine if the species would survive on different substrates, that is, solid, massive versus digitate/anastomosing, dead colonies. The results after nearly 2 years of the experiment were extraordinarily successful, with survival of transplants ranging from a high of 98% to a low of 80% of colonies, resulting in extensive coral cover on both original and new or different substrate from the original. A subsequent observation after another 16 months showed the coral cover to have been complete or nearly complete in the experimental plots, with the transplanted colonies fusing, and with evident reef fish communities where there were none before. Had there been no intervention, it is highly likely that the reefs would have remained in a degraded state .  相似文献   

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Matt Hodges 《Ethnos》2013,78(3):348-374
‘Amateur’ anthropology and ethnography are utopian categories proposed by anthropologists seeking to critique a perceived culture of ‘professionalism’ within the discipline (Grimshaw &; Hart, 1993 Grimshaw, Anna and Hart, Keith. 1993. Anthropology and the Crisis of the Intellectuals, Cambridge: Prickly Pear Pamphlet No.1.  [Google Scholar]). Yet they have arguably been practised extensively by local intellectuals oblivious to such debates. In rural Europe, this has often involved ‘pastoral’ conservation of ‘local history’, ‘traditions’ and ‘folk customs’, in the context of identity politics. Recent manifestations, however, have enabled the disciplining of cultural practices of indigenous populations by local entrepreneurs for use in heritage tourism. Building on Foucault's concept of a ‘disciplinary programme’, this paper analyses projects from a French Mediterranean village that have ‘borrowed’ discursive forms from French ethnology and historiography to convert local heritages into disciplined archives and booklets, predominantly for use in tourism. It then analyses their approximation to the discipline of anthropology; assesses their problematic distinction from anthropology's own disciplinary programmes; and explores the implications.  相似文献   

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Barker PA 《Neuron》2007,53(1):1-4
Functional interactions between the p75 neurotrophin receptor (p75NTR) and the Trk receptors were demonstrated several years ago, but their mechanistic basis remains uncertain. In this issue of Neuron, Wehrman et al. provide a three-dimensional structure of the full TrkA ectodomain complexed to NGF and examine the possibility of a ternary p75NTR-NGF-TrkA complex.  相似文献   

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This article explores the critical ways in which the relationship between landscape and memory is mediated by performance—through song, dance, ritual and the movements of the living and the dead. In the Lihir group of islands, in Papua New Guinea, these acts of memorialisation are rehearsed on a remarkable stage, an involuted cosmography or sacred geography in which the cosmological point of origin, the sacred rock of Ailaya, is also the ultimate destination for all human and spirit forms. Spirit beings are held to have emerged from the Ailaya, spreading across the island group, their tracks charting the links amongst distant clan members and the networks of alliance between trading partners. It is to the Ailaya that the spirits of deceased Lihirians must return, following preparatory mortuary rites and sung along a route that recalls the spirit connections. This teleological process is mapped through an account of the performance of relationships between people and land, to which an additional layer of complexity is added by the presence of a giant gold mine, in which the Ailaya is again the central feature.  相似文献   

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Between 2001 and 2006, the incidence of human Campylobacter infections decreased by 10 and 27% in Scotland and the Grampian region of Scotland, respectively. Contemporaneous collection and analyses of human and retail-chicken isolates from Grampian were carried out over a 10-week period in 2001 and again in 2006 in order to determine whether the fall in the incidence of human infections was related to the retail-chicken exposure route. Rates of carriage of Campylobacter on chicken carcasses from retail outlets in Grampian in 2001 and 2006 were estimated. Chicken-derived Campylobacter isolates from 2001 (n = 84) and 2006 (n = 105) and human-derived isolates from patients with clinical cases of infection in 2001 (n = 172) and 2006 (n = 119) were typed by multilocus sequence typing. We found no evidence for statistically significant changes in prevalence and counts per carcass. We found by rarefaction that although the degree of diversity in humans tended to be higher than that in chickens, these differences were not significant. The genetic distance between chicken and human isolates from 2001 according to sequence type, clonal complex (CC), or allele composition was not significant, whereas the distances between 2006 isolates at the CC and allele levels were significant. This difference was attributable to a lower proportion of CC-21's being found in retail-chicken isolates from 2006 than in chicken isolates from 2001. We conclude that human exposure to Campylobacter via retail chicken is important and that changes in the population structure of campylobacters in this reservoir need to be taken into account in investigating human infection.  相似文献   

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Numerous studies have shown that being able to resolve and recover from conflicts is of key importance for relationship satisfaction and stability in adults. Less is known about the importance of these relationship dynamics in adolescent romantic relationships. Therefore, this study investigated whether conflict resolution and recovery predict breakups in middle adolescent couples. Couples who are able to resolve and recover from conflict were expected to demonstrate a lower probability of breaking up. In total, 80 adolescent couples (M age = 15.48, SD = 1.16) participated in a 4-wave prospective questionnaire and observational study, with one year between measurements. In addition to self-report measures, adolescents were observed in real-time during conflicts with their partners. Multilevel Proportional Hazard analyses revealed that, contrary to the hypothesis, conflict resolution and conflict recovery did not predict the likelihood of breakup. Survival differences were not attributable to conflict resolution or conflict recovery. More research is needed to consider the unique relationship factors of adolescent romantic relationships to determine why some relationships survive while others do not.  相似文献   

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Stone marten (Martes foina) and European pine marten (M. martes) occur in western Eurasia. Current distributions of martens within Turkey and phylogenetic relationships among the Turkish and other populations of the two species within Eurasia remain relatively unknown. In this study, we aimed to determine genetic diversity within Martes populations inhabiting Turkey and to reveal the phylogenetic relationships among the Turkish and conspecific populations of the two marten species, using mitochondrial cytochrome b (CytB) sequences. Twenty‐four (24) haplotypes were identified among 86 marten samples collected across Turkey, including 23 novel haplotypes. Genetic distances among the Turkish haplotypes ranged from 0.1% to 0.8%, with an average of 0.3%. The 24 Turkish haplotypes were analysed together with those of conspecific populations deposited in GenBank. Phylogenetic (Bayesian Inference, maximum likelihood, neighbor‐joining) and network analyses revealed that all of the Turkish samples belonged to M. foina and that samples of M. martes were not encountered. Haplotypes of M. foina were divided into five haplogroups. The haplogroup including the two Chinese samples differed markedly from other the haplogroups. The remaining haplogroups contained samples from both the Turkish and European populations. We found that there was a genetically close relationship between the Turkish and the European stone marten populations. As a result of this study, M. martes may not be distributed in the Anatolian part of Turkey, possibly due to a barrier effect of two straits (Dardanelles and Bosporus) and the Caucasus Mountains. On the other hand, M. foina is distributed in both the Anatolian and Thracian parts of Turkey. Our results suggest that Turkey was likely one of the refuges for M. foina during Pleistocene glacial periods and is one of the centres of distribution of stone marten for Europe and the surrounding regions.  相似文献   

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Background

Observations that the airway microbiome is disturbed in asthma may be confounded by the widespread use of antibiotics and inhaled steroids. We have therefore examined the oropharyngeal microbiome in early onset wheezing infants from a rural area of tropical Ecuador where antibiotic usage is minimal and glucocorticoid usage is absent.

Materials and Methods

We performed pyrosequencing of amplicons of the polymorphic bacterial 16S rRNA gene from oropharyngeal samples from 24 infants with non-infectious early onset wheezing and 24 healthy controls (average age 10.2 months). We analyzed microbial community structure and differences between cases and controls by QIIME software.

Results

We obtained 76,627 high quality sequences classified into 182 operational taxonomic units (OTUs). Firmicutes was the most common and diverse phylum (71.22% of sequences) with Streptococcus being the most common genus (49.72%). Known pathogens were found significantly more often in cases of infantile wheeze compared to controls, exemplified by Haemophilus spp. (OR = 2.12, 95% Confidence Interval (CI) 1.82–2.47; P = 5.46×10−23) and Staphylococcus spp. (OR = 124.1, 95%CI 59.0–261.2; P = 1.87×10−241). Other OTUs were less common in cases than controls, notably Veillonella spp. (OR = 0.59, 95%CI = 0.56–0.62; P = 8.06×10−86).

Discussion

The airway microbiota appeared to contain many more Streptococci than found in Western Europe and the USA. Comparisons between healthy and wheezing infants revealed a significant difference in several bacterial phylotypes that were not confounded by antibiotics or use of inhaled steroids. The increased prevalence of pathogens such as Haemophilus and Staphylococcus spp. in cases may contribute to wheezing illnesses in this age group.  相似文献   

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To conserve a declining species we first need to diagnose the causes of decline. This is one of the most challenging tasks faced by conservation practitioners. In this study, we used temporally explicit species distribution models (SDMs) to test whether shifting weather can explain the recent decline of a marsupial carnivore, the eastern quoll (Dasyurus viverrinus). We developed an SDM using weather variables matched to occurrence records of the eastern quoll over the last 60 years, and used the model to reconstruct variation through time in the distribution of climatically suitable range for the species. The weather model produced a meaningful prediction of the known distribution of the species. Abundance of quolls, indexed by transect counts, was positively related to the modelled area of suitable habitat between 1990 and 2004. In particular, a sharp decline in abundance from 2001 to 2003 coincided with a sustained period of unsuitable weather over much of the species’ distribution. Since 2004, abundance has not recovered despite a return to suitable weather conditions, and abundance and area of suitable habitat have been uncorrelated. We suggest that fluctuations in weather account for the species’ recent decline, but other unrelated factors have suppressed recovery.  相似文献   

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Iza Kavedžija 《Ethnos》2016,81(2):214-237
In the context of unprecedented life expectancy, the social position of the Japanese elderly is changing. Anxieties related to ageing are widely experienced by people of all ages and on a number of levels, including nationwide concerns over the ‘ageing population’ and its economic consequences; the ageing of local communities; on an interpersonal level, as older relatives may require care and support; and, finally, in relation to one's own ageing. These anxieties are examined based on ethnographic research in the city of Osaka. The concept of ikigai, often equated with purpose in life but closely associated with the elderly in public discourse, is used to illustrate how ageing implicates a number of apparently unconnected issues. It is argued that anxieties about ageing may ultimately achieve such prominence because they give focus to a range of fundamental human concerns with meaning, death, freedom, and isolation.  相似文献   

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