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1.
George Baca 《Dialectical Anthropology》2008,32(3):219-241
Two contradicting ideas dominate political discussions of race in the United States. In the first, Americans of all political
stripes glory in the idea that the country's race relations have improved, largely due to changes collectively labeled as
‘the civil rights movement.’ Yet when Americans move their gaze to broader issues—often presumed to be beyond “race”—of economics,
public education, and civic life, they embrace a second, and seemingly opposed narrative of decline. There, social scientists
have wedded this image of social decay into ideas of neoliberalism, which they take to be the state's steady disinvestment
in public goods like education, healthcare, affordable housing and transportation. Though the rise of civil rights and neoliberalism
have overlapped historically, social scientists have shown determined reluctance to make any connection between the two; and
further, few have been willing to see the two processes as interwoven and collaborating in the production of the contemporary
political economic landscape. This essay argues that academic neoliberal discourse has unwittingly functioned to relieve civil
rights institutions of any responsibility for current racial conditions in the US by taking critical attention away from how
federal agencies and local politicians have implemented racial reforms. In the current scenario, neoliberalism is to blame
for undermining or retrenching the nation's commitment to racial equality, and civil rights victories are the victim. Ethnographic
and historical material on race relations in Fayetteville NC, USA, is presented to argue instead that the relationship between
the two turns out to be much more complex.
相似文献
George BacaEmail: |
2.
Yamada MO Okayama M Chikamori K Yamada G Moriwake Y Minami T Tohno S Takeuchi R Tohno Y 《Biological trace element research》2000,77(2):149-158
Marker elements were estimated from the red cosmetics collected from different ancient burials and mine ruins in three separate
districts of Japan. Element levels were displayed in reference to the relative amount to sulfur (RA/S), by which the cosmetics
were divided into five types: I—a low Hg/S with a low Fe/S; II—both moderate Hg/S and Fe/S; III—a moderate Hg/S with a high
Fe/S; III 2—a high Hg/S with a moderate Fe/S; IV—a high Hg/S with a high Fe/S. The cosmetics can be further characterized
by referring to other contaminants such as Zn, Cu, and Mn. These combined analyses with contaminant metals were capable of
characterizing the origins of the cosmetics; it is useful to compare them to each other. The cosmetics were identified as
being due to several groups of contaminants from ancient mines in Japan, and also with this system analysis of the markers
it is possible to identify them from neighboring countries. 相似文献
3.
Feeding experiment on nine feral minkMustela vison Schreber, 1777 was carried out to find differences in digestibility of particular prey types. The values of correction factors
(CF), which show the ratio between consumed prey biomass and undigested remains, were calculated for seven food types. The
experiment revealed that results obtained by commonly used percentage of occurrence methods differed from the real intake
of food. Food types which were intensively digested were underestimated by percentage of occurrence methods and prey which
had hardly digestive elements of their body were overestimated. The calculated values of CF are as follows: crayfish — 14.8,
fish — 30.8, frog — 61.3, small passerine bird — 17.2, chicken — 41.3, rodent — 17.3, egg — 687.5. The variability in CF values
did not depend on mink individuals but could be explained by the mean weight of prey items eaten by mink. The positive correlation
between the prey size and its digestibility was recorded for crayfish, fish and chicken. The biomass of frog, passerine and
rodent remains was not related to the body mass of eaten prey. The use of evaluated correction factors enables more accurate
estimates of the food composition of wild living mustelids. 相似文献
4.
Duncan N. L. Menge 《Ecosystems》2011,14(4):519-532
Human activity is drastically altering global nitrogen (N) availability. The extent to which ecosystems absorb additional
N—and with it, additional CO2—depends on whether net primary production (NPP) is N-limited, so it is important to understand conditions under which N can
limit NPP. Here I use a general dynamical model to show that N limitation at steady-state—such as in old-growth forests—depends
on the balance of biotically controllable versus uncontrollable N inputs and losses. Steady-state N limitation is only possible
when uncontrollable inputs (for example, atmospheric deposition) exceed controllable losses (for example, leaching of plant-available
soil N), which is the same as when uncontrollable losses (for example, leaching of plant-unavailable soil N) exceed controllable
inputs (biological N fixation). These basic results are robust to many model details, such as the number of plant-unavailable
soil N pools and the number and type of N fixers. Empirical data from old-growth tropical (Hawai’i) and temperate (Oregon,
Washington, Chile) forests support the model insights. Practically, this means that any N fixer—symbiotic or not—could overcome
ecosystem N limitation, so understanding N limitation requires understanding controls on all N fixers. Further, comparing
losses of plant-available N to abiotic inputs could offer a rapid diagnosis of whether ecosystems can be N-limited, although
the applicability of this result is constrained to ecosystems with a steady-state N cycle such as old-growth forests largely
devoid of disturbance. 相似文献
5.
The aim of the present study was to develop and evaluate a buccal adhesive tablet containing ondansetron hydrochloride (OH).
Special punches and dies were fabricated and used while preparing buccal adhesive tablets. The tablets were prepared using
carbopol (CP 934), sodium alginate, sodium carboxymethylcellulose low viscosity (SCMC LV), and hydroxypropylmethylcellulose
(HPMC 15cps) as mucoadhsive polymers to impart mucoadhesion and ethyl cellulose to act as an impermeable backing layer. The
formulations were prepared by direct compression and characterized by different parameters such as weight uniformity, content
uniformity, thickness, hardness, swelling index, in vitro drug release studies, mucoadhesive strength, and ex vivo permeation study. As compared with the optimized formulation composed of OH—5 mg, CP 934—30 mg, SCMC LV—165 mg, PEG 6000—40 mg,
lactose—5 mg, magnesium stearate—1.5 mg, and aspartame—2 mg, which gave the maximum release (88.15%), non-bitter (OH) that
form namely ondansetron base and complexed ondansetron was used in order to make the selected formulation acceptable to human.
The result of the in vitro release studies and permeation studies through bovine buccal mucosa revealed that complexed ondansetron gave the maximum
release and permeation. The stability of drug in the optimized adhesive tablet was tested for 6 h in natural human saliva;
both the drug and device were found to be stable in natural human saliva. Thus, buccal adhesive tablet of ondansetron could
be an alternative route to bypass the hepatic first-pass metabolism and to improve the bioavailability of (OH). 相似文献
6.
Rafael Flores-Peredo Lázaro Rafael Sánchez-Velásquez Jorge Galindo-González Jorge E. Morales-Mávil 《Plant Ecology》2011,212(6):1037-1046
In order to assess the impact of seed removal and seedling establishment for four species of pines, we designed experiments
with and without the exclusion of seed removers in three vegetation types (pine forest, oak-alder forest, and subalpine grassland).
Seed removal was significantly different between species of pines (P < 0.01), as was the interaction between the vegetation types and category of exclusion (remover) (P < 0.0001). The significant difference in terms of seed removal was between P. patula and P. montezumae (33.0 and 17.9%, respectively). Seed removal was significant between pine forest—without exclusion (20.0%) versus oak-alder
forest—without exclusion (7.0%). There was significant interaction between seedling establishment of the pine species and
vegetation type (P < 0.0001). Highlighting differences between the pine forest—P. teocote (84.1%) versus oak-alder forest—P. patula (19.0%), oak-alder forest—P. pseudostrobus (45.0%), pine forest—P. patula (20.2%), pine forest—P. pseudostrobus (45.6%), subalpine grassland—P. montezumae (24.3%), subalpine grassland—P. patula (27.9%), and subalpine grassland—P. pseudostrobus (17.5%). The impact of the food preferences of rodents and other granivores for P. patula and P. pseudostrobus seeds, as well as the poor survival of seedlings of these species in the pine and oak-alder forest are both factors which
may explain the dominance of P. teocote in the study region. 相似文献
7.
Type I hypersensitivity, which functions to protect the organism from parasites, is caused by binding of antigen to IgE antibodies
pre-attached to the cell surface of tissue mast cells and their circulating counterparts, the basophils. In “allergy,” type
I hypersensitivity is inappropriately induced by protein-based foreign substances (such as pollen) or protein components of
insect stings, which in the normal course of events would be cleared from the organism without causing any damage. Paradoxically,
a successful clinical treatment of allergy involves repeated immunization of allergic persons with low doses of the allergen—immunotherapy. Investigation of the available experimental evidence leads to the conclusion that the phenomena of immunotherapy are best
addressed in terms of the interplay among the mechanism(s) of immune memory—Th1/Th2 cross-regulation—and the physical compart-mentalization
of the immune system. These conclusions are illustrated with a numerical simulation. 相似文献
8.
Sunil Bansal Harinder Singh Oberoi Gurpreet Singh Dhillon R. T. Patil 《Indian journal of microbiology》2008,48(3):337-341
Whey containing 4.4% (w/v) lactose was inoculated with Kluyveromyces marxianus MTCC 1389 for carrying out studies related to β-galactosidase production. β-galactosidase activity was found to be maximum
after 30 h and further incubation resulted in decline in activity. The maximum cell biomass of 2.54 mg mL−1 was observed after 36 h of incubation. Lactose concentration dropped drastically to 0.04 % from 4.40% after 36 h of incubation.
Out of the four methods tested for extraction of enzyme, SDS — Chlorofom method was found to be best followed by Toluene —
Acetone, sonication and homogenization with glass beads in that order. It could be concluded through this study that SDS —
Chloroform is cheap and simple method for enzyme extraction from Kluyveromyces cells, which resulted in higher enzyme activity as compared to the activity observed using the remaining extraction methods.
The study could also establish that whey could effectively be utilized for β-galactosidase production thus alleviating water
pollution problems caused due to its disposal into the water streams. 相似文献
9.
Wesley Bolch Choonsik Lee Michael Wayson Perry Johnson 《Radiation and environmental biophysics》2010,49(2):155-168
As outlined in NCRP Report No. 160 of the US National Council on Radiation Protection and Measurements (NCRP), the average
value of the effective dose to exposed individuals in the United States has increased by a factor of 1.7 over the time period
1982–2006, with the contribution of medical exposures correspondingly increasing by a factor of 5.7. At present, medical contributors
to effective dose include computed tomography (50% of total medical exposure), nuclear medicine (25%), interventional fluoroscopy
(15%), and conventional radiography and diagnostic fluoroscopy (10%). An increased awareness of medical exposures has led
to a gradual shift in the focus of radiation epidemiological studies from traditional occupational and environmental exposures
to those focusing on cohorts of medical patients exposed to both diagnostic and therapeutic sources. The assignment of organ
doses to patients in either a retrospective or a prospective study has increasingly relied on the use of computational anatomic
phantoms. In this paper, we review the various methods and approaches used to construct patient models to include anthropometric
databases, cadaver imaging, prospective volunteer imaging studies, and retrospective image reviews. Phantom format types—stylized,
voxel, and hybrid—as well as phantom morphometric categories—reference, patient-dependent, and patient-specific—are next defined
and discussed. Specific emphasis is given to hybrid phantoms—those defined through the use of combinations of polygon mesh
and non-uniform rational B-spline (NURBS) surfaces. The concept of a patient-dependent phantom is reviewed, in which phantoms
of non-50th percentile heights and weights are designed from population-based morphometric databases and provided as a larger
library of phantoms for patient matching and lookup of refined values of organ dose coefficients and/or radionuclide S values. We close with two brief examples of the use of hybrid phantoms in medical dose reconstruction—diagnostic nuclear
medicine for pediatric subjects and interventional fluoroscopy for adult patients. 相似文献
10.
F. Bachmaier 《BioControl》1961,6(2):163-166
Summary The report gives a preliminary account of the decisions made by the International Commission of Zoological Nomenclature during
the XVth International Congress of Zoology held in London in 1958. — The most important of these resolutions deal especially
with the newrange of application of the rules of nomenclature (validity from subspecies up to superfamily), thesecondary homonyms (rescission of the permanent invalidity), theprocedure of naming the types (onlyholo-, lecto- andneotypus, as well as thesyntypes are of documentary value for the interpretation of a species; severer regulations were made for the nomination ofneotypes) and finally with theprinciple of priority, which — with certain limitations — found its full confirmation contrary to the principles of continuity and conservation.
相似文献
11.
N. V. Chernova 《Journal of Ichthyology》2011,51(10):825-924
Chorological structure of ichthyofauna of the Arctic Region is described. Distribution patterns of 504 fish-like vertebrates
and fish species are characterized. One hundred and eighty-nine range types are defined, which are combined into eight main
categories: 1—Arctic; 2—Atlantic-Arctic; 3—transitional subarctic zone of Atlantic sector; 4—Pacific-Arctic; 5—transitional
subarctic subarctic zone of Pacific sector, 6—Pacific-Atlantic (amphiboreal); 7—bipolar; 8—continental (fresh and brackish
waters). Arctic and boreal regions are bordered by transitional (subarctic) zones, which are the areas of intermutual penetration
of faunas. The distribution of most fish species that penetrate into to the Arctic Region from the southern areas is limited
by these transitional zones. The benthic fish species prevail in the group of autochthonous Arctic species (which includes
64 species or 14% of marine fauna). The demersal fauna of the Arctic preudoabyssal is presented by endemic species. Ten variations
of amphiboreal distribution patterns are revealed. Three areas may be defined within the Atlantic-subarctic zone in regard
to the fish fauna and range types, i.e., Labrador-Greenland region, the Barents Sea region, and Icelandic (transitional) region. 相似文献
12.
Ch. Berge 《Human Evolution》1991,6(5-6):365-376
Two multivariate methods — the logarithmic principal component analysis (LPCA), and the logarithmic factorial analysis (LFA)
— have been used tocompare the hip bone proportions of hominoids biometrically. The results have shown that size effects among
apes and hominids interact to a centain extent with locomotor specializations, which are related to the attainment of more
or less terrestrial behaviors.
The pelvic morphology of great apes (Pongo, Pan, Gorilla) has retained numerous morphological traits — such as a gracile and elongated hip bone —, which were inherited from common
adaptations to arboreal locomotion. In spite of these common traits, the African pongids (Pan, Gorilla) present two very different pelvic morphologies corresponding to two adaptative modes of terrestrial quadrupedalism.
The hip bone of humans is proportionnally short and robust, most particularly at the level of its axial part. These characteristics,
as well as the whole pelvic proportions, clearly indicate that gravitational forces exert a strong pressure on the pelvic
walls during bipedalism. Among hominids, the transition from an australopithecine-like pelvic pattern to a human-like one
corresponds to an increase of loading constraints on the hip jiont. This seems to indicate an evident change in locomotor
behavior. Progression apparently became exclusively terrestrial with the genusHomo. 相似文献
13.
N. A. Pakharukova L. Kh. Pastushkova S. A. Moshkovskii I. M. Larina 《Biochemistry (Moscow) Supplemental Series B: Biomedical Chemistry》2011,5(3):203-212
The aim of this review is to analyze results of studies on characteristics of protein variability and diversity of posttranslational
modifications of proteins in healthy humans. Numerous studies have demonstrated that a proteomic profile is characterized
by significant intra- and inter-individual variability, and quite often natural (“normal”) variability of some proteins can
be comparable to changes observed in pathological processes. Results obtained by our research group have demonstrated high
intra-individual variability of serum low-molecular subproteome of healthy volunteers, certified by a special medial committee
(the coefficient of variation (CV) of 42.6%). The proteins characterized by high variability under normal conditions (e.g.
haptoglobin — 0–40 mg/ml; lysozyme — 0.01–0.1 mg/ml; C-reactive protein — 0.01–0.3 mg/ml) cannot be considered as potential
biomarkers of diseases. On the contrary, proteins and peptides characterized by insignificant dispersion in healthy population
(such as albumin ( CV = 9%); transferrin-(CV = 14%); C3c complement (CV = 17%), α-1 acid glycoprotein (CV = 21%), α-2-macroglobulin
(CV = 20%); transthyretin fragment (CV = 28.3%) and α2-HS-glycoprotein βchain (CV = 29.7%)) can provide valuable information
about the state of health. Thus, studies of plasticity in the proteomic profiles of healthy humans will help to correct reference
intervals used in clinical proteomics. 相似文献
14.
P. I. P. Perera D. M. D. Yakandawala V. Hocher J-L. Verdeil L. K. Weerakoon 《Plant Cell, Tissue and Organ Culture》2009,96(2):171-180
The effect of growth regulators on induction of androgenesis in coconut was investigated using seven different growth regulators
at various concentrations and combinations. Three auxins (1-naphthalene acetic acid—NAA, indoleacetic acid—IAA, picloram)
and three cytokinins (2-isopentyl adenine-2-iP, kinetin, zeatin) were tested either alone or in combination with 2,4-dichlorophenoxyacetic
acid (2,4-D), using modified Eeuwens Y3 liquid medium as the basal medium. Among the tested auxins, 100 μM NAA in combination
with 100 μM 2,4-D enhanced the production of calli/embryos (123) whereas IAA and picloram showed negative and detrimental
effects, respectively, for androgenesis induction over 100 μM 2,4-D alone. Kinetin and 2-iP enhanced the production of calli/embryos
when 100 μM 2,4-D was present in the culture medium. Both cytokinins at 10 μM yielded the highest frequencies of embryos (113
and 93, respectively) whereas zeatin (1 or 2.5 μM) had no impact on microspore embryogenesis. When calli/embryos (produced
from different treatments in different experiments) were sub-cultured in somatic embryo induction medium (Y3 medium containing 66 μM 2,4-D), followed by maturation medium (Y3 medium without growth regulators) and germination medium (Y3 medium containing 5 μM-6-benzyladenine—BA and 0.35 μM gibberellic acid—GA3), plantlets were regenerated at low frequencies (in most treatments ranging from 0% to 7%). 相似文献
15.
Clostridium aminobutyricum ferments 4-aminobutyrate (γ-aminobutyrate, GABA) to ammonia, acetate and butyrate via 4-hydroxybutyrate that is activated
to the CoA-thioester catalyzed by 4-hydroxybutyrate CoA-transferase. Then, 4-hydroxybutyryl-CoA is dehydrated to crotonyl-CoA,
which disproportionates to butyryl-CoA and acetyl-CoA. Cocrystallization of the CoA-transferase with the alternate substrate
butyryl-CoA yielded crystals with non-covalently bound CoA and two water molecules at the active site. Most likely, butyryl-CoA
reacted with the active site Glu238 to CoA and the mixed anhydride, which slowly hydrolyzed during crystallization. The structure
of the CoA is similar but less stretched than that of the CoA-moiety of the covalent enzyme-CoA-thioester in 4-hydroxybutyrate
CoA-transferase from Shewanella oneidensis. In contrast to the structures of the apo-enzyme and enzyme-CoA-thioester, the structure described here has a closed conformation,
probably caused by a flip of the active site loop (residues 215–219). During turnover, the closed conformation may protect
the anhydride intermediate from hydrolysis and CoA from dissociation from the enzyme. Hence, one catalytic cycle changes conformation
of the enzyme four times: free enzyme—open conformation, CoA+ anhydride 1—closed, enzyme-CoA-thioester—open, CoA + anhydride-2—closed,
free enzyme—open. 相似文献
16.
This paper deals with information transfer from the environment and “self”-organization in open, nonlinear systems far from
thermodynamic equilibrium — in the presence of either non-stationary phase jitter noise, or amplitude stationary noise. By
“self”-organization we mean here the progressive formation within the system of sequential, ordered (coherent) relationships
between appropriate dynamical variables-like for example, the phase differences between the oscillating components of the
system. We take up (in Section II) the classical Laser as a specific example and examine in detail the influence of phase
jitter noise in the mode (phase) locking process. We find—as expected—that phase fluctuations in the cavity cause degradation
of the coherent behaviour (i.e. increase the entropy) of the system — which, however, levels off, or saturates with time.
Further (in Section III) we examine systems where the number of self-sustained oscillating components may vary with time in
such a way that the maximum entropy of the system increases faster than the overall instantaneous entropy. We put forth the
hypothesis that in such cases — because of the increase of the redundancy — the system gets organized not just in spite of,
but merely because of the presence of Noise. Possible applications in biological systems (especially concerning a model of
cerebral organization) are briefly discussed. It is understood here, that the system has to display some preliminary dynamical
structure before the organizing procedure takes over. What happens afterwards is the subject of this paper. 相似文献
17.
Pires RH Montanari LB Martins CH Zaia JE Almeida AM Matsumoto MT Mendes-Giannini MJ 《Mycopathologia》2011,172(6):453-464
Candida parapsilosis is yeast capable of forming biofilms on medical devices. Novel approaches for the prevention and eradication of the biofilms
are desired. This study investigated the anticandidal activity of sixteen essential oils on planktonic and biofilm cultures
of C. parapsilosis complex. We used molecular tools, enumeration of colony-forming units, the colourimetric MTT assay, scanning electron microscopy
(SEM) and a chequerboard assay coupled with software analyses to evaluate the growth kinetics, architecture, inhibition and
reduction in biofilms formed from environmental isolates of the Candida parapsilosis complex; further, we also evaluated whether essential oils would interact synergistically with amphotericin B to increase
their anticandidal activities. Of the environmental C. parapsilosis isolates examined, C.
parapsilosis and C. orthopsilosis were identified. Biofilm growth on polystyrene substrates peaked within 48 h, after which growth remained relatively stable
up to 72 h, when it began to decline. Details of the architectural analysis assessed by SEM showed that C. parapsilosis complex formed less complex biofilms compared with C. albicans biofilms. The most active essential oil was cinnamon oil (CO), which showed anticandidal activity against C. orthopsilosis and C. parapsilosis in both suspension (minimum inhibitory concentration—MIC—250 and 500 μg/ml) and biofilm (minimum biofilm reduction concentration—MBRC—1,000
and 2,000 μg/ml) cultures. CO also inhibited biofilm formation (MBIC) at concentrations above 250 μg/ml for both species tested.
However, synergism with amphotericin B was not observed. Thus, CO is a natural anticandidal agent that can be effectively
utilised for the control of the yeasts tested. 相似文献
18.
Smallholder rubber and swidden agriculture in Borneo: A sustainable adaptation to the ecology and economy of the tropical forest 总被引:1,自引:0,他引:1
Michael R. Dove 《Economic botany》1993,47(2):136-147
This is a study of the role of Para rubber cultivation in a system of swidden agriculture in Indonesian Borneo. Such smallholdings
produce most of Indonesia’s rubber, which is the country’s largest agricultural generator of foreign exchange. Rubber integrates
well into Bornean systems of swidden agriculture: the comparative ecology and economy of Para rubber and upland swidden rice
result in minimal competition in the use of land and labor — and even in mutual enhancement — between the two systems. Rubber
occupies a distinct niche in the farm economy: it meets the need for market goods, while the swiddens meet subsistence needs.
The intensity of production on these smallholdings is, as a result, characteristically low (and may even vary inversely with
market prices). This reflects the independence of these smallholders from external economic and political influences, which
has been the key to their historical success. The special virtues of such “composite systems” merit greater attention by development
planners.
Penilitian ini mempelajari peranan karet rakyat sebagai pasangan bagi sistem perladangan di Kalimantan-Indonesia. Perkebunan
karet rakyat merupakan penghasil utama karet Indonesia, yang merupakan penyumbang pertanian terbesar bagi devisa negara. Karet
rakyat membaur dengan baik dalam sistem perladangan di Kalimantan: pembandingan ekologi dan ekonomi antara karet rakyat dan
sistem perladangan menunjukkan persaingan yang minimum dalam pemakaian lahan dan tenaga kerja—dan bahkan saling menguntungkan—antara
kedua sistem tersebut. Karet rakyat menempati kedudukan yang penting dalam ekonomi usaha para peladang: yaitu memenuhi kebutuhan
barang-barang pasar, sedangkan sistem perladangan memenuhi kebutuhan pokok hidup. Intensitas produksi perkebunan karet rakyat
oleh karena itu, brasanya agak rendah (yang kadang-kadang berbeda berbalikan dengan harga pasar). Hal ini menggambarkan ketidak-bergantungan
petani karet pada pengaruh-pengaruh ekonomi dan politik dari luar, dan ini merupakan kunci sukses mereka. Hal-hal khususyang
menguntungkan dari sistem terpadu inipatut mendapatkanperhatian yang lebih besar dari perencana-perencana pembangunan. 相似文献
19.
Frank Werner Hans-Jörg Althaus Klaus Richter Roland W. Scholz 《The International Journal of Life Cycle Assessment》2007,12(3):160-172
Background
In product life cycle assessment (LCA), the attribution of environmental interventions to a product under study is an ambiguous task. This is due to a) the simplistic modeling characteristics in the life cycle inventory step (LCI) of LCA in view of the complexity of our techno-economic system, and b) to the nontangible theoretical nature of the product system as a representation of the processes ‘causally’ linked to a product. Ambiguous methodological decisions during the setup of an LCI include the modeling of end-of-life scenarios or the choice of an allocation factor for the allocation of joint co-production processes. An important criterion for methodological decisions — besides the conformity with the relevant series of standards ISO 14 040 — is if the improvement options, which can be deduced from the LCI, are perceived by the decision-maker as to redirect the material flows at stake into more sustainable paths. 相似文献20.
A collection of fossils sampled during the 1898–1902 expedition of theFram to the Canadian Arctic Islands includes abundant bryozoans from the Lower Permian (Artinskian) Great Bear Cape Formation
of Ellesmere Island. From this material a new genus with one new species —Nansenopora peculiaris n. gen., n. sp. — as well as three new species —Streblotrypella arctica n. sp.,Phragmophera patricki n. sp. andKallodictyon spinatum n. sp. — are described. Furthermore, the speciesUlrichotrypa ramulosa
Bassler, 1929 is reported for the first time from the Lower Permian of the Arctic region. 相似文献