Results 91 to 100 of about 250,447 (236)

The value added tax : its causes and consequences [PDF]

, 2007
Almost unknown in 1960, the value added tax (VAT) is now found in more than 130 countries, raises around 20 percent of the world’s tax revenue, and has been the centerpiece of tax reform in many developing countries.
Lockwood, Ben, Keen, Michael
core  

Bound Water as a Reinforcing Element for Ultra‐Strong Polyacrylamide

Advanced Science, EarlyView.
Rather than acting as a conventional plasticizer, bound water serves as a reinforcing element in polyacrylamide by constructing strong PAM–water–PAM hydrogen‐bond networks. This water‐mediated architecture delivers ultra‐high mechanical strength and exceptional flame resistance, redefining the role of water in polymer reinforcement.
Sirawit Pruksawan, Nannan Li, Zehuang Lin, Jianwei Zheng, Terence Jun En Loh, Yi Ting Chong, Junhua Kong, Xunan Hou, Xian Jun Loh, Chaobin He, FuKe Wang   +10 more
wiley   +1 more source

Evaluation of the Effect of Ethanol on the Properties of Acrylic-Urethane Samples Processed by Vat Photopolymerization

Applied Sciences
The aim of the study was to investigate the effect of ethanol on the properties of acrylic-urethane resin products obtained by vat photopolymerization using the masked stereolithography method.
Dorota Tomczak, Wiesław Kuczko, Ariadna B. Nowicka, Tomasz Osmałek, Mirosław Szybowicz, Monika Wojtyłko, Radosław Wichniarek   +6 more
doaj   +1 more source

Delhi’s VAT Department- Mixed Results and Lessons for GST [PDF]

The Value Added Tax (VAT) system is a system of indirect taxation that replaced the previous sales tax regime in India. Like its predecessor, VAT is implemented at the state level and applies to all goods traded within the state.
Garg, Rahul
core  

Subversion of Atypical Mucin Traps by a Spore‐Coat Effector Blocks Cellular Immunity in Drosophila

Advanced Science, EarlyView.
While the entomopathogenic fungus Metarhizium robertsii can evade insect humoral immunity, its subversion of cellular defenses is still elusive. We identify Eac1 as a spore‐coat protein essential for infecting drosophilids by targeting atypical mucins (Sgf1 and Sgf2), which can entrap spores in a gel matrix and thereby facilitate hemocyte encapsulation.
Shiqin Li, Haimin Chen, Gangqi Fang, Dongxiang Wei, Hongyun Wu, Chen Chen, Song Hong, Chengshu Wang   +7 more
wiley   +1 more source

Protein nanoreactors and native enzymes for controlled/living radical polymerization [PDF]

, 2013
The present PhD thesis entitled ‚Protein Nanoreactors and Native Enzymes for Controlled/Living Radical Polymerization‘ began with the hypothesis that protein-catalyst conjugates are able to beneficially influence controlled/living radical polymerization,
Renggli, Kasper
core   +1 more source

Printable Piezoresistive Hybrid Hydrogels Based on 2D MoS2 for Flexible Pulse Sensing

Advanced Science, EarlyView.
Hybrid 1T‐MoS2‐based hydrogels are engineered through UV curing and 3D printing to achieve tunable electromechanical properties for wearable sensing. These soft architectures enhance mechanical stability and reproducible piezoresistive responses within the physiological pressure range.
Jenny Flores, Arianna Bertero, Luca Ceseracciu, Daniel Jiménez‐Boland, Sara Domenici, Mattia Bramini, Paola Sánchez‐Moreno, Erica Scarcelli, Domenico Galdiero, Pavel Fedorov, Daniil Karnaushenko, Rossella Sesia, Ignazio Roppolo, Micaela Pozzati, Mattia Spedicati, Nicolò Petrini, Marco Sangermano, Bartolomeo Coppola, Teresa Gatti   +18 more
wiley   +1 more source

Does the removal of the support structure affect the palatal accuracy of partial denture frameworks produced by three vat polymerization printing technologies?

Digital Dentistry Journal
Objectives: To evaluate the effect of removing the support structure on the palatal accuracy of removable partial denture (RPD) frameworks fabricated using three 3D printing technologies: stereolithography apparatus (SLA), digital light processing (DLP),
Enas Elhamy Negm, Mangala Patel, Paul Ryan   +2 more
doaj   +1 more source

Vat Polymerization 3D Printing for Controlled Drug Release Applications

Advanced Materials Technologies
ABSTRACT Vat polymerization (VP) 3D printing, a light‐based additive manufacturing technique, has emerged as a promising technique for fabricating complex drug delivery systems with high precision and spatial resolution. This layer‐by‐layer manufacturing process enables the creation of intricate geometries and customizable ...
Hafiz Busari, O. Thompson Mefford, M. Aaron Vaughn   +2 more
openaire   +1 more source

Evaluation of graphene addition on 3D resin for MSLA vat polymerization

Matéria (Rio de Janeiro)
ABSTRACT Additive manufacturing opens new possibilities for new designs and manufacture of architected metamaterials and nanocomposites. Among the 3D printing technology, vat polymerization is highlighted due its higher resolution, smother surface and printing speed.
Matheus Klement Sebben, Rafael de Lima Perottoni, Cândida Alíssia Brandl, Moisés Xavier Guimarães Valentim, Juliana Rosemara Felisberto da Silva, Bárbara Tirloni, Natália de Freitas Daudt   +6 more
openaire   +2 more sources