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1.
Shimpei Iwasaki Bam Haja Nirina Razafindrabe Rajib Shaw 《Mitigation and Adaptation Strategies for Global Change》2009,14(4):339-355
Climate change combined with human activities poses significant risks to people’s livelihood especially in developing countries.
Adaptation at the community level is of crucial importance in enabling them to respond to the direct and indirect effects
of changes in climate. In a case study of fishing communities in Chilika lagoon, India, the focus is made on understanding
climate change adaptation at the community level and scaling it up into the policy perspective through application of Sustainable
Livelihood Approach. This article challenges the research and policy community to encourage the identification of locally
negative constraints and positive strengths toward climate resilient communities in rural areas.
相似文献
Rajib ShawEmail: |
2.
Approaches to semi-synthetic minimal cells: a review 总被引:1,自引:0,他引:1
Following is a synthetic review on the minimal living cell, defined as an artificial or a semi-artificial cell having the
minimal and sufficient number of components to be considered alive. We describe concepts and experiments based on these constructions,
and we point out that an operational definition of minimal cell does not define a single species, but rather a broad family
of interrelated cell-like structures. The relevance of these researches, considering that the minimal cell should also correspond
to the early simple cell in the origin of life and early evolution, is also explained. In addition, we present detailed data
in relation to minimal genome, with observations cited by several authors who agree on setting the theoretical full-fledged
minimal genome to a figure between 200 and 300 genes. However, further theoretical assumptions may significantly reduce this
number (i.e. by eliminating ribosomal proteins and by limiting DNA and RNA polymerases to only a few, less specific molecular
species). Generally, the experimental approach to minimal cells consists in utilizing liposomes as cell models and in filling
them with genes/enzymes corresponding to minimal cellular functions. To date, a few research groups have successfully induced
the expression of single proteins, such as the green fluorescence protein, inside liposomes. Here, different approaches are
described and compared. Present constructs are still rather far from the minimal cell, and experimental as well as theoretical
difficulties opposing further reduction of complexity are discussed. While most of these minimal cell constructions may represent
relatively poor imitations of a modern full-fledged cell, further studies will begin precisely from these constructs. In conclusion,
we give a brief outline of the next possible steps on the road map to the minimal cell.
相似文献
Pier Luigi Luisi (Corresponding author)Email: |
Francesca FerriEmail: |
Pasquale StanoEmail: |
3.
Recent paleogeographic scenarios postulate the isolation of continental Africa during the Late Cretaceous. The absence of abelisaurid theropods from Upper Cretaceous African strata was offered as support of hypothesized African isolation with the acknowledgement that the paucity of African abelisaurids may be mostly an issue of sampling. Here we report on a shed theropod tooth from the Upper Cretaceous (Maastrichtian, ∼70 Ma) Duwi Formation of Egypt. The tooth was referred to the Malagasy abelisaurid “Megalosaurus” crenatissimus (=Majungasaurus crenatissimus) in 1921. A discriminant function analysis was run to test for morphological congruence between the Egyptian tooth and the dentitions of 24 theropod taxa. The analysis correctly classified 96.6% of the teeth in the sample and assigned the tooth to Majungasaurus. As current paleogeographic reconstructions posit Madagascar had attained its current position relative to Africa before the Late Cretaceous, it is unlikely that the Egyptian tooth actually pertains to Majungasaurus. Nevertheless, its classification as an abelisaurid supports its referral to the clade. This tooth thus constitutes defensible evidence of an abelisaurid from the post-Cenomanian Cretaceous of mainland Africa. Combined with recent discoveries of abelisaurids in Niger and Morocco, the result indicates that Abelisauridae was a diverse group in Africa during the Cretaceous, existing in multiple places for at least ∼25 Ma and weakens support for hypotheses of an isolated Africa during the Late Cretaceous.Electronic Supplementary Material Supplementary material is available for this article at
相似文献
Joshua B. Smith (Corresponding author)Email: Phone: +1-314-9357033Fax: +1-314-9357361 |
Matthew C. LamannaEmail: |
4.
Over the past decade “bicellar” lipid mixtures composed of the long-chain dimyristoyl phosphatidylcholine (DMPC) and the short-chain
dihexanoyl PC (DHPC) molecules have emerged as a powerful medium for studying membrane associated, biologically relevant macromolecules
and assemblies. Depending on temperature, lipid concentration and composition these lipid mixtures can assume a variety of
morphologies, some of them alignable in the presence of a magnetic field. This article will examine the biophysical studies
that have elucidated the various morphologies assumed by these lipid mixtures, and their use in the biochemical studies of
biomolecules.
相似文献
John KatsarasEmail: |
5.
Veronika Dornburg Gregg Marland 《Mitigation and Adaptation Strategies for Global Change》2008,13(3):211-217
Kirschbaum (Mitig Adapt Strat Glob Change 11:1151–1164, 2006) explores the climatic impact over time of temporarily sequestering carbon from the atmosphere. He concludes that temporary
storage of carbon in the terrestrial biosphere “achieves effectively no climate-change mitigation”. His strongly worded statement
begs for a response. This paper argues that Kirschbaum’s conclusion is an artifact of the specific perspective of his analysis
and his choice of a definition for climate-change impact. Even temporary sinks put us on a lower path for climate change,
a path that will not otherwise be accessible. For carbon sinks in the terrestrial biosphere, we argue that sooner is better
and longer is better, but even known temporary sinks have value.
相似文献
Gregg Marland (Corresponding author)Email: |
6.
A stakeholder driven process to reduce vulnerability to climate change in Hermosillo,Sonora, Mexico 总被引:1,自引:0,他引:1
Hallie Eakin Victor Magaña Joel Smith José Luis Moreno José Maria Martínez Osvaldo Landavazo 《Mitigation and Adaptation Strategies for Global Change》2007,12(5):935-955
While there is a growing body of knowledge on potential impacts of climate change on water availability, there has been much
less empirical research on exploring the viability of particular adaptation options. The participation of stakeholders in
defining appropriate adaptation strategies is increasingly recognized as a critical element in the translation of climate
change impact research into effective actions to reduce future vulnerability, yet the process by which stakeholders are included
in such initiatives is not well-defined. This article presents the results of a pilot project in which a participatory approach
was employed to identify and evaluate adaptation options to climate change scenarios for Sonora’s capital city, Hermosillo.
In an iterative process, stakeholders representing different water users and managers in the city met to discuss climate change
scenarios, identify specific adaptation options, and evaluate a subset of options for possible future implementation. This
process enabled the focus of the investigation on those adaptations that addressed not only concerns with the potential future
impacts of climate change but also the immediate and pressing concerns about development patterns and water use in the city.
Two of the adaptations to climate change identified by stakeholders would also reduce energy demand. The simplicity of the
approach makes it a feasible model for adaptation initiatives in other regions of Mexico and in other countries in Latin America.
相似文献
Osvaldo LandavazoEmail: |
7.
Molecular topology is an application of graph theory and statistics in fields like chemistry, biology, and pharmacology, in
which the molecular structure matters. Its scope is the topological characterization of molecules by means of numerical invariants,
called topological indices, which are the main ingredients of the molecular topological models. These are statistical models
that are instrumental in the discovery of new applications of naturally occurring molecules, as well as in the design of synthetic
molecules with specific chemical, biological, or pharmacological properties. In this review, we focus on pharmacology, which
is a novel field of application of molecular topology. Besides summarizing some recent developments, we also seek to bring
closer this interesting biomedical application of mathematics to an interdisciplinary readership.
相似文献
Vincent M. VillarEmail: |
8.
Community-based vulnerability assessment has often assumed that the local is the relevant level of adaptation to climate change.
This paper suggests that not only do a number of levels from the international to the regional influence which adaptations
can take place locally, but the governance network that is made up by actors on different levels may to a large extent be
formed in responses to globalising factors, such as internationalisation of economies and the changing role of the state.
The paper presents a study of adaptation in reindeer (Rangifier tarandus) herding, forestry and fishing communities in northern Norway, Sweden, and Finland, with a focus on assessing stakeholders’
own perceptions of environmental, socio-political and economic factors that affect them. In general, the paper illustrates
the integration of non-subsistence economies into large and complex interactions where local adaptation is a result of the
sum of stresses impacting individual entrepreneurs, and the potential they have to adapt their practices given governance
(and their access to support) on different scales.
相似文献
E. Carina H. KeskitaloEmail: |
9.
Institutions play an important role in the adaptive capacity of a system in responding to climate change. This review paper
characterizes the status of the collective institutional response (government, industry, First Nation, community, civil society)
to climate change in the forest sector of the Canadian province of Ontario, and highlights the presence and nature of inter-institutional
networks as part of the response. Based on a synthesis of the commonalities in the public administration and policy literature
on tackling wicked problems, and the resilience literature, inter-institutional networks, which foster exchange of different
types of knowledge, are an important aspect of enhancing the adaptive capacity of social–ecological systems such as the forest
sector. Based on a content analysis of publicly available documents and insights gained from representatives of government,
community members and non-governmental organizations, mitigation and adaptations strategies are described. At the provincial
level there have been some new innovations in inter-institutional networks, but expansion of the forest stakeholders involved
in such networks would further enhance adaptive capacity. In particular, it is important to network with First Nations and
other forest-dependent communities who have a heightened vulnerability to climate change. The presence of a collaborative
capacity builder could foster the transfer, receipt and integration of knowledge across the networks, and ultimately build
long-term collaborative problem-solving capacity in the Ontario forest sector.
相似文献
H. Carolyn Peach BrownEmail: |
10.
Males of the gypsy moth, Lymantria dispar, are attracted by a pheromone released by females. Pheromones are detected by olfactory neurons housed in specialized sensory
hairs located on the antennae of the male moth. Once pheromone molecules enter the sensilla lymph, a highly abundant pheromone-binding
protein (PBP) transports the molecule to the sensory neuron. The PBPs are members of the insect odorant-binding protein family,
with six conserved cysteine residues. In this study, the disulfide bond connectivities of the pheromone-binding proteins PBP1
and PBP2 from the gypsy moth were found to be cysteines 19–54, 50–109, and 97–118 for PBP1, and cysteines 19–54, 50–110, and
97–119 for PBP2, as determined by cyanylation reactions and cyanogen bromide chemical cleavage. We have discovered that the
second disulfide linkage is the most easily reduced of the three, and this same linkage is missing among four cysteine-containing
insect odorant-binding proteins (OBPs). We are the first to identify the unique steric and electronic properties of this second
disulfide linkage.
Electronic Supplementary Material Supplementary material is available for this article at
相似文献
Erika PlettnerEmail: |
11.
Linking emissions trading schemes allows the combined emissions cap to be achieved at lower cost. Linking is usually environmentally
neutral, but some design features can lead to higher aggregate emissions if schemes are linked. Technical solutions to limit
the potential emissions increases due to design differences implemented when schemes are linked are not sufficient to ensure
the environmental effectiveness of the linked schemes over time. Technological, economic, administrative and other changes
that can lead to higher aggregate emissions are inevitable. The administrators of the linked schemes must ensure the stringency
of the emissions cap relative to the “business as usual” emissions of affected sources, the accuracy of the emissions reported
by affected sources, the integrity of the allowance registry, effective compliance enforcement, and the environmental integrity
of the credits issued for emission reduction projects over time. This will require a process for agreeing on revisions to
the regulations of the linked schemes, a mechanism to provide assurance of the environmental effectiveness of each of the
linked schemes, and a procedure for terminating the linking agreement.
相似文献
X. WangEmail: |
12.
Greenhouse gas mitigation in developing countries through technology transfer?: a survey of empirical evidence 总被引:1,自引:0,他引:1
Sonja Peterson 《Mitigation and Adaptation Strategies for Global Change》2008,13(3):283-305
While greenhouse gas (GHG) emissions are projected to rise primarily in the developing countries, the potential for developing
new GHG mitigation technologies exists primarily in the industrialized countries. It is thus important, not only for predictions
about future emission paths but also for climate change mitigation policies, to understand how the international diffusion
of such technologies takes place and how it affects the energy infrastructure and GHG emissions in developing countries. This
paper provides an overview of the channels through which these technologies diffuse and focuses on the empirical evidence
pertaining to the effects these technologies have on GHG emissions in developing countries.
相似文献
Sonja PetersonEmail: |
13.
Earliest zygodactyl bird feet: evidence from Early Cretaceous roadrunner-like tracks 总被引:2,自引:2,他引:0
Fossil footprints are important in understanding Cretaceous avian diversity because they constitute evidence of paleodiversity
and paleoecology that is not always apparent from skeletal remains. Early Cretaceous bird tracks have demonstrated the existence
of wading birds in East Asia, but some pedal morphotypes, such as zygodactyly, common in modern and earlier Cenozoic birds
(Neornithes) were unknown in the Cretaceous. We, herein, discuss the implications of a recently reported, Early Cretaceous
(120–110 million years old) trackway of a large, zygodactyl bird from China that predates skeletal evidence of this foot morphology
by at least 50 million years and includes the only known fossil zygodactyl footprints. The tracks demonstrate the existence
of a Cretaceous bird not currently represented in the body fossil record that occupied a roadrunner (Geococcyx)-like niche, indicating a previously unknown degree of Cretaceous avian morphological and behavioral diversity that presaged
later Cenozoic patterns.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users.
相似文献
Masaki MatsukawaEmail: |
14.
Davin Budreau Gordon McBean 《Mitigation and Adaptation Strategies for Global Change》2007,12(7):1305-1320
Scientific evidence gathered over the past five years suggests that northern Canada and the Arctic have undergone, and are
undergoing, formidable environmental changes linked to global climate change. Environmental change in the north is expected
to persist and intensify over the course of the next century. When large-scale environmental changes take place, they inevitably
affect people, especially when the cultures and livelihoods of those people depend on their relationship with the environment.
Managing the local impacts of these changes is a matter of adaptation. This paper discusses some of the policy implications
of adaptation––government interventions aiming to build communities’ and regions’ capacities to adapt to environmental changes.
Three arguments for adaptive capacity building interventions in the north are discussed, and these arguments are augmented
by a comparative review of government reactions to the collapse of the cod fishery in Atlantic Canada. Reactive and proactive
policy approaches are discussed, and it is suggested from the comparison that proactive approaches to intervention are desirable
for building adaptive capacity.
相似文献
Gordon McBean (Corresponding author)Email: |
15.
Synergisms between climate change mitigation and adaptation: an insurance perspective 总被引:1,自引:0,他引:1
Evan Mills 《Mitigation and Adaptation Strategies for Global Change》2007,12(5):809-842
As the world’s largest industry, the insurance sector is both an aggregator of the impacts of climate change and a market
actor able to play a material role in decreasing the vulnerability of human and natural systems. This article reviews the
implications of climate change for insurers and provides specific examples of insurance-relevant synergisms between adaptation
and mitigation in the buildings and energy sectors, agriculture, forestry, and land use. Although insurance is far from a
“silver bullet” in addressing climate change, it offers significant capacity and ability to understand, manage, and spread
risks associated with weather-related events, more so today in industrialized countries but increasingly so in developing
countries and economies in transition. Certain measures that integrate climate change mitigation and adaptation also bolster
insurers’ solvency and profitability, thereby increasing their appeal. Promising strategies involve innovative products and
systems for delivering insurance and the use of new technologies and practices that both reduce vulnerability to disaster-related
losses and support sustainable development. However, climate change promises to erode the insurability of many risks, and
insurance responses can be more reactive than proactive, resulting in compromised insurance affordability and/or availability.
Public–private partnerships involving insurers and entities such as the international relief community offer considerable
potential, but have not been adequately explored.
相似文献
Evan MillsEmail: URL: http://insurance.lbl.gov |
16.
Pablo del Río 《Mitigation and Adaptation Strategies for Global Change》2009,14(3):203-213
Internal mitigation projects have recently been proposed as an additional flexibility mechanism, particularly in the context
of the European Union. Their main objective is to engage sectors not included in the European Union emissions trading scheme
(EU ETS) in cost-effective emissions reductions. However, in this paper it is argued that, when assessed in terms of dynamic
efficiency, the instrument is likely to be, at best, irrelevant to induce the scale of systemic technological changes which
are required to tackle the climate change problem and, at worst, detrimental for this task. Insights from the Evolutionary
Economics of technological change complemented with political economy considerations are used to support this claim.
相似文献
Pablo del RíoEmail: |
17.
Further evidence of nuclear reactions in the Pd/D lattice: emission of charged particles 总被引:1,自引:1,他引:0
Almost two decades ago, Fleischmann and Pons reported excess enthalpy generation in the negatively polarized Pd/D-D2O system, which they attributed to nuclear reactions. In the months and years that followed, other manifestations of nuclear
activities in this system were observed, viz. tritium and helium production and transmutation of elements. In this report,
we present additional evidence, namely, the emission of highly energetic charged particles emitted from the Pd/D electrode
when this system is placed in either an external electrostatic or magnetostatic field. The density of tracks registered by
a CR-39 detector was found to be of a magnitude that provides undisputable evidence of their nuclear origin. The experiments
were reproducible. A model based upon electron capture is proposed to explain the reaction products observed in the Pd/D-D2O system.
相似文献
Pamela A. Mosier-BossEmail: |
18.
Alexander Golub Jos Cozijnsen Annie Petsonk 《Mitigation and Adaptation Strategies for Global Change》2009,14(5):433-453
This article examines possibilities for linkage between the European Union Emissions Trading System (EU ETS) and Russia, with
a view to enhancing cooperation on a broader scale than the project-based approaches that have been tested thus far. Three
paths for possible EU-Russia linkage are presented by which the Russian Assigned Amount under the Kyoto Protocol can be greened
in order to stimulate emissions trading: 1. Joint implementation—reductions earned via individual projects in Russia; 2. Greened
allowances or green investment schemes; and 3. Linked cap-and-trade systems, in which a Russian domestic emissions trading
system would link with the European Union Emissions Trading System. The authors conclude that the third option, emissions
trading through linked domestic emissions trading systems, offers the best opportunities at the lowest transaction costs.
The authors discuss useful innovative instruments like call options and slip level arrangements on government-to-government
and business-to-business levels.
相似文献
Annie PetsonkEmail: |
19.
Maisch MW Matzke AT Grossmann F Stöhr H Pfretzschner HU Sun G 《Die Naturwissenschaften》2005,92(1):40-44
A lower molar of a haramiyoid mammal is described from the Toutunhe Formation of Liuhuanggou near Urumqi in the southern Junggar Basin, Xinjiang, China. It is referred to Eleutherodon sp., otherwise exclusively known from the Upper Bathonian of England. It is the first record of the order Haramiyida from Asia and the first Mesozoic mammal described from the southern Junggar Basin. Apart from the English specimens of Eleutherodon and Staffia from the Upper Jurassic of East Africa, it is the geologically youngest haramiyoid known. It is the first vertebrate taxon from the Toutunhe Formation that is probably not endemic and lends some support to the dating of the Formation as late Middle Jurassic, probably Bathonian.
相似文献
Michael W. MaischEmail: |
20.
Methodological issues in forestry mitigation projects: a case study of Kolar district 总被引:1,自引:1,他引:0
N. H. Ravindranath I. K. Murthy P. Sudha V. Ramprasad M. D. V. Nagendra C. A. Sahana K. G. Srivathsa H. Khan 《Mitigation and Adaptation Strategies for Global Change》2007,12(6):1077-1098
There is a need to assess climate change mitigation opportunities in forest sector in India in the context of methodological
issues such as additionality, permanence, leakage and baseline development in formulating forestry mitigation projects. A
case study of forestry mitigation project in semi-arid community grazing lands and farmlands in Kolar district of Karnataka,
was undertaken with regard to baseline and project scenario development, estimation of carbon stock change in the project,
leakage estimation and assessment of cost-effectiveness of mitigation projects. Further, the transaction costs to develop
project, and environmental and socio-economic impact of mitigation project was assessed.
The study shows the feasibility of establishing baselines and project C-stock changes. Since the area has low or insignificant
biomass, leakage is not an issue. The overall mitigation potential in Kolar for a total area of 14,000 ha under various mitigation
options is 278,380 t C at a rate of 20 t C/ha for the period 2005–2035, which is approximately 0.67 t C/ha/year inclusive
of harvest regimes under short rotation and long rotation mitigation options. The transaction cost for baseline establishment
is less than a rupee/t C and for project scenario development is about Rs. 1.5–3.75/t C. The project enhances biodiversity
and the socio-economic impact is also significant.
相似文献
N. H. RavindranathEmail: |