Le Cabinet de l'amateur et de l'antiquaire : revue des tableaux et des estampes anciennes, des objets d'art, d'antiquité et de curiosité

Variante(s) de titre : Le Cabinet de l'amateur

Le Cabinet de l'amateur et de l'antiquaire : revue des tableaux et des estampes anciennes, des objets d'art, d'antiquité et de curiosité

1842 (T1).

Le Cabinet de l'amateur et de l'antiquaire : revue des tableaux et des estampes anciennes, des objets d'art, d'antiquité et de curiosité

1863 (A3,N25).

Le Cabinet de l'amateur et de l'antiquaire : revue des tableaux et des estampes anciennes, des objets d'art, d'antiquité et de curiosité

1845 (T4)-1846.

Le Cabinet de l'amateur et de l'antiquaire : revue des tableaux et des estampes anciennes, des objets d'art, d'antiquité et de curiosité

1844 (T3).

Le Cabinet de l'amateur et de l'antiquaire : revue des tableaux et des estampes anciennes, des objets d'art, d'antiquité et de curiosité

1843 (T2).

Organic chicken product authentication: state-of-the-art and future perspectives

Organic food products are highly susceptible to fraud. Currently, administrative controls are conducted to detect fraud, but having an analytical tool able to verify the organic identity of food would be very supportive. The state-of-the-art in food authentication relies on fingerprinting approaches that find characteristic analytical patterns to unequivocally identify authentic products. While wide research on authentication has been conducted for other commodities, the authentication of organic chicken products is still in its infancy. Challenges include finding fingerprints to discriminate organic from conventional products, and recruiting sample sets that cover natural variability. Future research might be oriented towards developing new authentication models for organic feed, eggs and chicken meat, keeping models updated and implementing them into regulations. Meanwhile, these models might be very supportive to the administrative controls directing inspections towards suspicious fraudulent samples.

Electrocatalysis and electrocatalysts for low temperature fuel cells: fundamentals, state of the art, research and development

This article deals with electrocatalysis and electrocatalysts for low temperature fuel cells and also with established means and methods in electrocatalyst research, development and characterization. The intention is to inform about the fundamentals, state of the art, research and development of noble metal electrocatalysts for fuel cells operating at low temperatures.

Gp120/CD4 blocking antibodies are frequently elicited in ART-naïve chronically HIV-1 infected individuals

Antibodies with the ability to block the interaction of HIV-1 envelope glycoprotein (Env) gp120 with CD4, including those overlapping the CD4 binding site (CD4bs antibodies), can protect from infection by HIV-1, and their elicitation may be an interesting goal for any vaccination strategy. To identify gp120/CD4 blocking antibodies in plasma samples from HIV-1 infected individuals we have developed a competitive flow cytometry-based functional assay. In a cohort of treatment-naïve chronically infected patients, we showed that gp120/ CD4 blocking antibodies were frequently elicited (detected in 97% plasma samples) and correlated with binding to trimeric HIV-1 envelope glycoproteins. However, no correlation was observed between functional CD4 binding blockade data and titer of CD4bs antibodies determined by ELISA using resurfaced gp120 proteins. Consistently, plasma samples lacking CD4bs antibodies were able to block the interaction between gp120 and its receptor, indicating that antibodies recognizing other epitopes, such as PGT126 and PG16, can also play the same role. Antibodies blocking CD4 binding increased over time and correlated positively with the capacity of plasma samples to neutralize the laboratory-adapted NL4.3 and BaL virus isolates, suggesting their potential contribution to the neutralizing workforce of plasma in vivo. Determining whether this response can be boosted to achieve broadly neutralizing antibodies may provide valuable information for the design of new strategies aimed to improve the anti-HIV-1 humoral response and to develop a successful HIV- 1 vaccine.

La Conservació dels murals de la capella de Sant Miquel del Reial Monestir de Santa Maria de Pedralbes

Quan l'abadessa del monestir de Pedralbes estableix en el contracte de Ferrer Bassa que els murals de la capella de Sant Miquel es facin a l'oli segurament fa referència a una tècnica pictòrica consistent a aglutinar els pigments amb oli i a la seva aplicació damunt d'una capa prèvia feta a base de blanc de plom. Però la tècnica que ens trobem no és aquesta: si bé s'utilitza l'oli, s'empren altres aglutinants proteics i resines terpèniques, essent la fase prèvia una pintura al fresc. Els murals estan pintats al fresc i al sec gairabé en la mateixa proporció,i la distribució dels dos procediments està perfectament planificada abans de començar a pintar. També està previst fer la profusa decoració amb daurats i platejats. Els principals problemes de conservació són es inherents a la utilització d'aglutinants orgànics. La tècnica executiva és l'element que més ha condicionat la conservació dels murals, mentre que l'ambient estable de la capella i la seva ubicació han permès que aquest cicle pictòric hagi superat prop de set-cents anys d'història en un estat molt intacte i complet.

epiCentre!: rehabilitació de Ca n'Oliver com a centre d'art

Award-winning

La Cité d'art : revue mensuelle de littérature et d'art

Variante(s) de titre : La Cité d'art : revue mensuelle, littéraire, artistique, sociale

La Cité d'art : revue mensuelle de littérature et d'art

1899/01 (A2,N1)-1899/11 (A2,N8).

La Cité d'art : revue mensuelle de littérature et d'art

1898/07 (A1,N7)-1898/12 (A1,N12).

La Cité d'art : revue mensuelle de littérature et d'art

1898/01 (A1,N1)-1898/06 (A1,N6).