Results 101 to 110 of about 494,390 (288)

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Patterns of HIV testing practices among young gay and bisexual men living in Scotland: a qualitative study

BMC Public Health, 2017
Background Increasing overall rates, and frequency, of HIV testing in populations at risk is a key public health objective and a critical dimension of HIV prevention efforts.
Nicola Boydell, Katie Buston, Lisa Margaret McDaid   +2 more
doaj   +1 more source

Single fathers by choice using surrogacy. Why men decide to have a child as a single parent [PDF]

, 2017
STUDY QUESTION: Why do men decide to have a child by surrogacy as a single parent? SUMMARY ANSWER: Reasons included feeling that it was the right time (i.e.
Baiocco, Roberto, Carone, Nicola, Lingiardi, Vittorio   +2 more
core   +2 more sources

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Sexual practices in a broad cross–sectional sample of Sydney gay men

Australian and New Zealand Journal of Public Health, 1997
: The aim of this study was to provide current data on the sexual practices in a broad cross–sectional sample of gay and homosexually active men in Sydney.
Paul van deVen, Susan Kippax, June Crawford, Judy French, Garrett Prestage, Andrew Grulich, John Kaldor, Paul Kinder   +7 more
doaj   +1 more source

The Experience of “Bottoming”: Considerations for Identity and Learning [PDF]

, 2014
Bottoms—Gay men who prefer to be penetrated, sexually—are more stigmatized than other gay men, and may develop and experience identities differently than other gay, bisexual, or heterosexual men.
Collins, Joshua, McGill, Craig M
core  

The Democratic Biopolitics of PrEP [PDF]

, 2019
PrEP (Pre-Exposure Prophylaxis) is a relatively new drug-based HIV prevention technique and an important means to lower the HIV risk of gay men who are especially vulnerable to HIV.
Adam D Galinsky, Alain Giami, Amy L Hequembourg, Andrew D Forsyth, Barry D Adam, Beatriz Preciado, Bettina Schöne-Seifert, Carlos Novas, Catherine Mills, Christoph D Spinner, Christoph Menke, Cindy Patton, Daniel Grace, David M Halperin, David M Halperin, David M Halperin, Dawn K. Smith, Didier Fassin, Elizabeth F Closson, George Ayala, Giorgio Agamben, Giorgio Agamben, Heiner Meulemann, Hyman M Scott, Ingrid Young, Jaakko Ailio, Jaakko Ailio, Jaakko Ailio, Jae M Sevelius, Jared M Baeten, Jean-Michel Molina, Jeffrey Thomas Nealon, Jerome A Singh, Jessica E Haberer, Jessie L Juusola, Judith D Auerbach, Kane Race, Kane Race, Karen Schneider, Karsten Schubert, Kathleen R Page, Kimberly Koester, Latesha Elopre, Lauren V Wood, Mara Tognetti Bordogna, Marianne Pieper, Martin Holt, Martin Saar, Michael Hardt, Michael Hardt, Michel Foucault, Michel Foucault, Michel Foucault, Mingwang Shen, Mitchell Dean, Myron S Cohen, Myron S Cohen, Niels Doorn van, Nikolas Rose, Nikolas Rose, Nikolas Rose, Paul Rabinow, Paul Rabinow, Peter Langford, Robert M Grant, Roberto Esposito, Roberto Esposito, Roberto Esposito, Sarah K Calabrese, Sarit A. Golub, Shane P Collins, Sheena McCormack, Steven Epstein, Steven Epstein, Thea Cacchioni, Thomas Lemke, Thomas Lemke, Tim Dean, Tim Dean, Tim Dean, Tim Dean, Ulrich Bröckling, Ulrich Bröckling, Valentina Cambiano, Vinh-Kim Nguyen   +84 more
core   +5 more sources

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

Advanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández, Álex Farrando Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla, José A. Quintana, Yanpei Wan, Daniel Aranda, José Manuel Marín‐Beloqui, Jishan Wu, Zebing Zeng, María A. Díaz‐García, Juan Casado   +12 more
wiley   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source