Search results for " body"

Many-body Green's function theory of electrons and nuclei beyond the Born-Oppenheimer approximation

2020

The method of many-body Green's functions is developed for arbitrary systems of electrons and nuclei starting from the full (beyond Born-Oppenheimer) Hamiltonian of Coulomb interactions and kinetic energies. The theory presented here resolves the problems arising from the translational and rotational invariance of this Hamiltonian that afflict the existing many-body Green's function theories. We derive a coupled set of exact equations for the electronic and nuclear Green's functions and provide a systematic way to approximately compute the properties of arbitrary many-body systems of electrons and nuclei beyond the Born-Oppenheimer approximation. The case of crystalline solids is discussed …

Holistic and unified approach to facilitate graphical data visualization and statistical predictive modelling for diseases at the microorganism level

2015

Borrelia species are predominantly responsible for the most common form of Tick-borne diseases (TBD) which is Lyme borreliosis (LB). Episodes of Lyme arthritis (LA) is a hallmark symptom of LB patients. LA is an atypical form of reactive arthritis (ReA) that is a sub-type of Spondyloarthritis (SpA). Coinfections such as Ehrlichia chaffeensis accompany primary Borrelia species during the later stages of LB infection to induce severe symptoms. Currently, there is no holistic approach that would unify different TBD pathogens into independent and multiple TBD infection (MTBDI) combination categories to facilitate graphical and statistical analysis between any two patients groups. The chronic ma…

Reading the Body in Bret Easton Ellis's American Psycho (1991) : Confusing Signs and Signifiers

2009

http://www.graat.fr/roche.pdf; International audience; This article examines how matter, in Ellis's scandalous novel, is read according to the texts that inform the yuppie's etiquette, labeling the body as either “healthy” or “unhealthy.” Basing his argumentation on the works of Judith Butler, Luce Irigaray, Jacques Lacan, Clément Rosset and D.W. Winnicott, the author argues that the body is perceived as a sign of something when it is actually an effect of the signifier, and that the novel's excess makes the invisible workings of what Michel Foucault called “power” extremely visible. The novel thus undermines the yuppie/psychopath-narrator's essentialist quest. Indeed, the psychopath attemp…

Development and Characterization of Diamondback Moth Resistance to Transgenic Broccoli Expressing High Levels of Cry1C

2000

ABSTRACT A field-collected colony of the diamondback moth, Plutella xylostella , had 31-fold resistance to Cry1C protoxin of Bacillus thuringiensis . After 24 generations of selection with Cry1C protoxin and transgenic broccoli expressing a Cry1C protein, the resistance that developed was high enough that neonates of the resistant strain could complete their entire life cycle on transgenic broccoli expressing high levels of Cry1C. After 26 generations of selection, the resistance ratios of this strain to Cry1C protoxin were 12,400- and 63,100-fold, respectively, for the neonates and second instars by a leaf dip assay. The resistance remained stable until generation 38 (G38) under continuous…

WHOLE BODY IRRADIATION INDUCES IFN-γ PRODUCTION IN BALB/c MICE BY PREVENTING THE APPEARANCE OF A Vα14+NK T DOWNREGULATORY POPULATION

2000

Lymph node cells from TNCB-immune BALB/c mice fail to produce IFN-gamma when exposed to antigen in vitro. Conversely, lymph node cells of irradiated (550 rads) BALB/c mice produce IFN-gamma. Transfer experiments show that normal BALB/c mice contain cells which suppress IFN-gamma production. These downregulatory cells are CD4(+)alpha beta(+)and rearrange the invariant V alpha 14-J alpha 281 T cell receptor alpha chain, thus belonging to the NK T cell subset. Downregulatory cells probably act by producing IL-4 as their effect is blocked by mAb to IL-4.

Ha ancora una rilevanza la Convenzione sull’eliminazione di ogni forma di discriminazione nei confronti delle donne? Per una sua (ri)considerazione n…

2011

EFFECTS OF CONJUGATED LINOLEIC ACID AND RESISTANCE TRAINING IN RECREATIONAL ATHLETES

2008

Conjugated linoleic acid (CLA) is a mixture of positional and geometrical isomers of linoleic acid, that are known to posses several physiological effects such as enhancing immune response, reducing arteriosclerosis risk, and inhibiting carcinogenesis. Over the last decade, the use of CLA supplement has become widespread among elite and recreational athletes because it should increase training effects, improve fat oxidation, increase energy delivery, reduce body weight, improve lipid profile, and so on. The purpose of this project is to investigate whether CLA supplementation after a resistance training session affects general markers of muscle damage, total testosterone, cortisol and sex h…

Calcium/calmodulin-dependent protein kinases in the carotid body: an immunohistochemical study

2012

We determined the presence of Ca(2+)/calmodulin-dependent protein kinases (CaMKs), a family of multifunctional proteins engaged in Ca(2+)-linked signaling, in carotid body chemoreceptor cells which are critical for the hypoxia-sensing. Carotid bodies were dissected from anesthetized normoxic adult Wistar rats and were double stained for individual CaMKs and for tyrosine hydroxylase (TH), a marker of chemoreceptor cells. Immunofluorescence was examined by confocal laser scanning microscopy. We found that CaMKI and CaMKII were expressed in chemoreceptor cells, but their distribution and intensity varied. CaMKI immunoreactivity was distributed throughout the cytoplasm, whereas that of CaMKII w…

Localization of quantitative trait loci for diapause and other photoperiodically regulated life history traits important in adaptation to seasonally …

2015

Seasonally changing environments at high latitudes present great challenges for the reproduction and survival of insects, and photoperiodic cues play an important role in helping them to synchronize their life cycle with prevalent and forthcoming conditions. We have mapped quantitative trait loci (QTL) responsible for the photoperiodic regulation of four life history traits, female reproductive diapause, cold tolerance, egg-to-eclosion development time and juvenile body weight in Drosophila montana strains from different latitudes in Canada and Finland. The F2 progeny of the cross was reared under a single photoperiod (LD cycle 16:8), which the flies from the Canadian population interpret a…

CD40 provides immune privilege to the bone marrow hematopoietic niche

2020

AbstractAllogeneic bone marrow transplantation remains the only therapeutic option for a wide range of hematological malignancies despite the risk of possible adverse, immune-related events, such as infection and acute graft-versus-host disease (aGVHD). aGVHD is characterized by T-cell activation, defective B-cell development and osteoblastic niche destruction in bone marrow (BM) among other issues. Transplant conditioning regimens cause excessive inflammatory cytokines production and impaired regulatory T-cell control of aberrant T-cell activation. Here, we show that mesenchymal cells (MSCs) upregulated CD40 upon irradiation at the expense of mesenchymal markers, and that CD40 endows MSC o…