Search results for "centri"

Demonstration and partial characterization of an intermediate HBcAG (Dane particle) population.

1981

Abstract Hepatitis-B core antigen (HBcAg) was released from Dane particles previously separated from anti-HBc by repeated pelleting through sucrose gradients separated into three HBcAg populations when analysed by cesium chloride density gradient centrifugation. Heavy HBcAg particles banded at a density of 1.355 gm/ml, intermediate HBcAg particles at a density of 1.33 gm/ml, and light mediate HBcAg particles at a density of 1.30 gm/ml. Like heavy HBcAg particles, intermediate HBcAg particles contained DNA polymerase activity, but the ratio of HBcAg to DNA polymerase activity was significantly different in both populations. Intermediate HBcAg particles could not be separated from heavy HBcAg…

Steroid hormone receptors in the female urogenital tract

1994

The increasing clinical use of estrogens in the treatment of stress-incontinent women caused us to examine receptor patterns in the female bladder and urethral tissue, and to characterize possible receptors by means of Scatchard plot analysis, competition experiments and density gradient centrifugation.

High-pressure phase ofLaPO4studied by x-ray diffraction and second harmonic generation

2016

The pressure-induced phase transition of monazite-type ${\mathrm{LaPO}}_{4}$ at $\ensuremath{\approx}26$ GPa is studied by single-crystal x-ray diffraction and second harmonic generation (SHG) up to 31 GPa. The structure of the postmonazite phase of ${\mathrm{LaPO}}_{4}$ has been obtained and it is shown that it corresponds to a post-barite-type structure with an acentric space group $P{2}_{1}{2}_{1}{2}_{1}$. A strong increase of the SHG signal at the transition confirms that the high-pressure polymorph is noncentrosymmetric. The phase transition involves a significant discontinuous decrease of the unit-cell volume by 6%, which is mainly due to a strong contraction of the $a$ lattice parame…

¿Puede ser ecológico el estilo moderno de vida?

2019

Se trata de responder a la pregunta sobre la posibilidad de un estilo de vida ecológico en las condiciones de la vida moderna; es decir, teniendo en cuenta la condición técnica y económica del hombre, la tecnologización de la sociedad, la nueva cultura económica basada en el crecimiento económico, la ilimitada producción y el imperio del consumo. Como vía de solución se propone una ética universal de la responsabilidad solidaria para un ethos ecológico, capaz de superar el habitual dilema entre los valores del biocentrismo y del humanismo.

L'accueil des enfants (d') immigrés dans les écoles françaises : éducation entre culture familiale et culture du pays d'arrivée

2011

Immigrant(s') children are the purveyors of a family tongue and culture which differ from that of the host country and its education system, when in fact, family culture and the mother-tongue play a major role in harmonious child development and in his/her integration into society. School, which should aim at both enabling the child to establish himself/herself as a subject and finding his/her place in society, conveys a different culture, which is regarded as legitimate. What about the tongues and cultures of immigrant children? Until the 1970s, nothing specific was schemed for immigrant school children. They had to merge with the rest. Family reunification policies brought along the takin…

Ultracentrifugation studies on the native form of the first component of human complement (C1)

1976

Navigare fra istanze stato-centriche e cosmopolitiche: il caso Sea-watch in una prospettiva conflittuale

2019

Il caso della “Sea-Watch” (Gradoni e Pasquet) pone una questione di grande importanza dal punto di vista teorico per il diritto internazionale. Si tratta del conflitto fra due modi di interpretare il funzionamento delle norme internazionali in gioco, che potremmo sinteticamente denominare prospettiva “stato-centrica” e prospettiva “cosmopolitica”.

Why is a live chicken banned from the kindergarten? Two lessons learned from teaching posthuman pedagogy to university students

2019

The hierarchical human-centric paradigm has been criticized by various movements of posthuman philosophy because this paradigm forgets and dismisses nonhuman beings and entities: animals, nature, objects, and technology. When I developed a course called ‘Education and Adaptations of Animal Studies’ for university students in 2015, I learned two lessons in practice. First, many humans, pedagogues, and academics want to hold on to their anthropocentric worldview that separates them from other species. Second, in pedagogical practices humans prefer to avoid confronting the violence they do toward animals. In this article, I reflect on these two lessons learned and consider what they tell us ab…

Recreational fish feeding affects coastal fish behavior and increases frequency of predation on damselfish (Chromis chromis) nests

2006

Wildlife feeding has become an integral part of the range of activities offered to protected area visitors. In marine protected areas (MPAs), fish feeding may cause changes in the behavior, and thus the density and distribution, of coastal fish species. We evaluated spatial variability in human-positive fish behavior around the Ustica Island MPA (Italy) and the potential indirect effects of behavioral change on other species. Two mensurative experiments demonstrated that ca. 1/3 of the species present in fish-feeding areas exhibited human-positive behavior, losing instinctive fear in the presence of humans and encircling people in the water even when food was not provided. A manipulative ex…

Particularizing Nonhuman Nature in Stakeholder Theory : The Recognition Approach

2022

AbstractStakeholder theory has grown into one of the most frequent approaches to organizational sustainability. Stakeholder research has provided considerable insight on organization–nature relations, and advanced approaches that consider the intrinsic value of nonhuman nature. However, nonhuman nature is typically approached as an ambiguous, unified entity. Taking nonhumans adequately into account requires greater detail for both grounding the status of nonhumans and particularizing nonhuman entities as a set of potential organizational stakeholders with different characteristics, vulnerabilities, and needs. We utilize the philosophical concept of ‘recognition’ to provide a normative under…