Abstract：
:We propose to start the analysis of complex systems by systematically identifying the feedback circuits that govern their dynamics. These circuits can be identified without any ambiguity by examining the Jacobian matrix of the system. They provide precious information regarding the number and nature of steady states. Logical descriptions use variables and functions that can take only a limited number of discrete values (in simple cases, only two, 0 or 1). We developed an asynchronous method with continuous time, generalized by using variables with more than two levels and logical parameters. Reverse logics is a synthetic, inductive method. It aims at proceeding rationally from the experimental facts towards models rather than from models to predictions.
journal_name
C R Bioljournal_title
Comptes rendus biologiesauthors
Thomas R,Kaufman Mdoi
10.1016/s1631-0691(02)01452-xsubject
Has Abstractpub_date
2002-04-01 00:00:00pages
505-14issue
4eissn
1631-0691issn
1768-3238pii
S1631-0691(02)01452-Xjournal_volume
325pub_type
杂志文章abstract：:I here provide some field observations and literature data showing that egg laying site availability could be the main limiting factor for most arboreal gecko population dynamics. Several natural (typhoons, volcanism, sea level variations) or human-mediated habitat modifications (garden openings in forested areas) pro...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2009.11.005
更新日期：2010-01-01 00:00:00
abstract：:The biological effect of seasonality on cadmium, lead and metallothionein contents was assessed in mussels Mytilus galloprovincialis from natural banks located along the coastline of the Gulf of Naples (Campania, Italy). Heavy metals and metallothionein concentrations were measured in digestive and reproductive glands...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2014.05.003
更新日期：2014-07-01 00:00:00
abstract：:In the present investigation, a total of 51 marine fungi were obtained from wood samples collected from four locations of Tamil Nadu (Tuthukudi, Chennai, Kanyakumari and Pichavaram), India. Out of these 51, 28 were ascomycetes, one was basidiomycete and 22 were mitosporic fungi. Maximum fungal diversity was encountere...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2008.03.008
更新日期：2008-06-01 00:00:00
abstract：:Tomato seedlings grown on nitric medium and treated with various cadmium concentrations (0 to 50 microM) were used. Results obtained show that cadmium remains predominantly located in the roots, which then seem to play the role of trap-organs. Increasing cadmium concentration in the medium leads particularly to a decr...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2006.06.008
更新日期：2006-10-01 00:00:00
abstract：:Meiosis is a specialized cell division at the origin of the haploid cells that eventually develop into the gametes. It therefore lies at the heart of Mendelian heredity. Recombination and redistribution of the homologous chromosomes arising during meiosis constitute an important source of genetic diversity, conferring...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2016.04.003
更新日期：2016-07-01 00:00:00
abstract：:A field experiment was conducted with paddy (Oryza sativa L.) irrigated with different concentrations (Control, 2.5, 5, 10, 25, 50, 75, 100 and 200 mg/l) of chromium. The changes in growth, yield, nutrient content and chromium accumulation in the paddy are reported. The growth of shoot, root, total leaf area, fresh we...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2010.03.002
更新日期：2010-08-01 00:00:00
abstract：:Choosing a suitable habitat is a main step in the settlement process, particularly for species having weak movement abilities. Reliable cues are thus needed for habitat selection. In silk-spinning arthropods, silk can be used as a social cue to select an appropriate location. Silk can also provide information on the p...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2012.07.001
更新日期：2012-08-01 00:00:00
abstract：:Policy for biodiversity conservation must evolve to cope with the increasing human footprint on natural systems. A major issue here is the need for policy for protected areas, which integrates their surrounding landscape and local human populations in the construction of socially grounded measures. To illustrate curre...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2011.02.001
更新日期：2011-05-01 00:00:00
abstract：:Pleistocene climatic changes shaped the patterns of biodiversity in Europe and around the Mediterranean. Describing the phylogeographic structure of animal populations and inferring past population dynamics is essential to develop a framework for conservation biology in Europe. Direct persecution, habitat loss, popula...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(03)00038-6
更新日期：2003-08-01 00:00:00
abstract：:The authors' purpose will be here to underline the continuity of the adaptative processes that make Homo sapiens, sometimes a brilliant inventor, sometimes a mere imitator, forging tools already conceived by Nature itself. ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2007.06.006
更新日期：2007-10-01 00:00:00
abstract：:Four hundred twenty three marine mammals, in 72 stranding events, were recorded between 1877 and 2005 in New Caledonia, the Loyalty Islands, and Vanuatu in the southwest Pacific. Sixteen species were represented in this count, including: minke whale, Balaenoptera acutorostrata (1 single stranding), sei whale, B. borea...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2006.01.004
更新日期：2006-04-01 00:00:00
abstract：:Plectroctena minor workers have long mandibles that can snap and deliver a sharp blow to intruders or prey, stunning or killing them. Encounters between homocolonial P. minor workers separated for 24 h or 15 days never resulted in snapping, while this behaviour was always noted during encounters between heterocolonial...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(02)01484-1
更新日期：2002-07-01 00:00:00
abstract：:In spite of great progress in schistosomiasis control during the last decade in Burkina Faso, this disease remains a public health concern in the country. Indeed, our study consisted of the analysis of parasitological data related to Schistosoma haematobium and Schistosoma mansoni and in malacological investigations. ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2013.04.014
更新日期：2013-05-01 00:00:00
abstract：:We show that the chemotactic movements of colonies of the starving amoeba Dictyostelium discoideum are driven by a force that depends on both the direction of propagation (directional sensing) of reaction-diffusion chemotactic waves and on the gradient of the concentration of the chemoattractant, solving the chemotact...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2013.10.008
更新日期：2013-11-01 00:00:00
abstract：:The evolutionary history of modern humans means much more than their demographic past. It includes the way in which humans have had to genetically adapt to the different environments they have encountered-nutritional, climatic or pathogenic-as well as the different epigenetic responses elicited by such environmental c...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2016.04.005
更新日期：2016-07-01 00:00:00
abstract：:Cattle, sheep and goats were domesticated about 10,000 years ago, spread out of the domestication centers in Europe, Asia, and Africa during the next few thousands years, and gave many populations locally adapted. After a very long period of soft selection, the situation changed dramatically 200 years ago with the eme...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2010.12.007
更新日期：2011-03-01 00:00:00
abstract：:Psychometric tests obtained from 6564 young men were studied as a function of the parents' ages at conception and of some characteristics of the subject's postnatal environment. Individual scores, from 0 to 20, were divided into two groups: n(1)11 and n(2)<11. In univariate analysis, scores <11 were respectively relat...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2009.02.008
更新日期：2009-07-01 00:00:00
abstract：:The approaches used by demographers and by epidemiologists for studying the fecundity of couples (i.e. their ability to conceive) have converged, whereas they were historically divergent. Demography traditionally focused on fertility - the circumstances in which livebirths occur - with the aim of predicting population...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2007.02.013
更新日期：2007-04-01 00:00:00
abstract：:With an expectation of life at birth of 27 years in the middle of the 18th century, 21% of males reached their 60th birthday with a remaining expectation of life of 12 years. Under the conditions of mortality of 1950, in France, 70 percent could celebrate their 60th birthday, and they had still 15 years (only) to live...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(02)01469-5
更新日期：2002-06-01 00:00:00
abstract：:Potato is the fourth staple food in the world, following rice, wheat, and maize, whereas tubers contain high quality of starch, relatively high amounts of vitamin C and many other important substances. It also contains relatively good quality of protein (about 3 to 6% of the dried weight) and patatin, and 11S globulin...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2013.09.002
更新日期：2013-09-01 00:00:00
abstract：:Hardwood trees are able to reorient their axes owing to tension wood differentiation. Tension wood is characterised by important ultrastructural modifications, such as the occurrence in a number of species, of an extra secondary wall layer, named gelatinous layer or G-layer, mainly constituted of cellulose microfibril...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2004.07.006
更新日期：2004-09-01 00:00:00
abstract：:During the analysis of alien and invasive flora of Europe, as a threat to biodiversity, data for Croatia were missing. The aim of our research was to analyse distributional patterns and range size of all invasive alien plants (64) for the state area (57,000 km(2)). They were detected on 49% of the state territory, ave...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2013.01.003
更新日期：2013-02-01 00:00:00
abstract：:Connectivity studies in the marine realm are of great importance to understand the evolutionary potential of populations in a context of growing pressures on the marine environment. Here, we investigated the effect of the local, regional, and depth spatial scale on the population genetic structure of the yellow gorgon...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2018.09.002
更新日期：2018-01-01 00:00:00
abstract：:Enhanced stop codon readthrough is a potential treatment strategy for diseases caused by nonsense mutations. Here, we compare readthrough levels induced by three types of factors: aminoglycoside antibiotics, suppressor tRNAs, and factors decreasing translation termination efficiency. We show that the highest levels of...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2006.09.001
更新日期：2007-01-01 00:00:00
abstract：:Why was sexual selection so important to Darwin? And why was it de-emphasized by almost all of Darwin's followers until the second half of the 20th century? These two questions shed light on the complexity of the scientific tradition named "Darwinism". Darwin's interest in sexual selection was almost as old as his dis...
journal_title：Comptes rendus biologies
pub_type： 传,历史文章,杂志文章
doi：10.1016/j.crvi.2009.12.001
更新日期：2010-02-01 00:00:00
abstract：:The intestinal microbiota is essential for digestion, the production of physiological metabolites, and defense. More than 1013 bacteria are present in the intestine, inspiring awe as well as fear of potential infections. By definition, the immune system protects us from infection, and is given the task to recognize da...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2018.03.003
更新日期：2018-01-01 00:00:00
abstract：:For a very long time, arguments supporting the neuro-humoral theory, produced by the pharmacologist Henri Dale, did not convince one of the main supporters of the electrical theory, the neurophysiologist John C. Eccles. This article gives a reminder of certain technical elements of this debate between two giants, whic...
journal_title：Comptes rendus biologies
pub_type： 传,历史文章,杂志文章
doi：10.1016/j.crvi.2006.03.013
更新日期：2006-05-01 00:00:00
abstract：:This paper suggests three additions to the Hildebrand method for gait-pattern specification. The first allows an extension of this method by the use of the forelimb as reference. Thus, dataset could be gathered indifferently from fore or hindlimbs cycles to identify a symmetrical gait or compare gaits of diverse speci...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2003.11.005
更新日期：2004-02-01 00:00:00
abstract：:In this paper we consider cell cycle models for which the transition operator for the evolution of birth mass density is a simple, linear dynamical system with a stochastic perturbation. The convolution model for a birth mass distribution is presented. Density functions of birth mass and tail probabilities in n-th gen...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2003.05.002
更新日期：2004-03-01 00:00:00
abstract：:This Note presents experimental evidence that a hyperbolic tissue flow plays an important role in the establishment of the organization plan of vertebrates. We have followed the development of chicken embryos from the gastrula stage up to the moment when the body plan is recognizable. We have found that establishment ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2011.03.010
更新日期：2011-07-01 00:00:00
