1.

Record Nr.

UNINA9910716788703321

Titolo

Cruelty, coercion, and legal contortions : the Trump administrations unsafe Asylum Cooperative Agreements with Guatemala, Honduras, and El Salvador : a majority staff report prepared for the use of the Committee on Foreign Relations, United States Senate, One Hundred Seventeenth Congress, first session, January 18, 2021

Pubbl/distr/stampa

Washington : , : U.S. Government Publishing Office, , 2021

Descrizione fisica

1 online resource (iv, 93 pages)

Collana

S. prt. ; ; 117-13

Soggetti

Emigration and immigration

Asylum, Right of - United States

Refugees - United States

Refugees - Guatemala

Refugees - Honduras

Refugees - El Salvador

Asylum, Right of

Refugees

Legislative materials.

El Salvador

Guatemala

Honduras

United States

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

At head of title: 117th Congress, 1st session. Committee print.

Nota di bibliografia

Includes bibliographical references.



2.

Record Nr.

UNINA9910298461603321

Autore

Bharti Bhuvnesh

Titolo

Adsorption, Aggregation and Structure Formation in Systems of Charged Particles : From Colloidal to Supracolloidal Assembly / / by Bhuvnesh Bharti

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2014

ISBN

3-319-07737-6

Edizione

[1st ed. 2014.]

Descrizione fisica

1 online resource (155 p.)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053

Disciplina

539.721

Soggetti

Chemistry, Physical and theoretical

Nanotechnology

Amorphous substances

Complex fluids

Physical Chemistry

Soft and Granular Matter, Complex Fluids and Microfluidics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references at the end of each chapters.

Nota di contenuto

From the Contents: Introduction -- Methods -- Theory and Modeling -- Surfactant Adsorption and Aggregate Structure at Silica Nanoparticles -- Formation of Cylindrical Micelles in Tubular Nanopores.

Sommario/riassunto

This thesis presents studies on the interaction of soft materials like surfactants and proteins with hard silica nanomaterials. Due to its interdisciplinary nature it combines concepts from the fields of physical chemistry, nanoscience and materials science, yielding to fundamental insights into the structure-directing forces operating at the nano-scale. It is shown that the morphology of surfactant micellar aggregates adsorbed at the surface of nanoparticles and inside tubular nanopores can be tuned on demand by the co-adsorption of a surface modifier. The interaction of globular proteins with silica nanoparticles is dominated by electrostatic interactions and can be controlled by pH and ionic strength, while the bridging of nanoparticles by adsorbed



protein molecules leads to large-scale hybrid aggregates of protein with the nanoparticles. Concepts emerging from the role of electrostatic interactions in the hetero-aggregation of nanoparticles with protein molecules are used for the co-assembly of charged microbeads into linear clusters and chains of controllable length.