Results 41 to 50 of about 409,937 (288)

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Investigation d’une épidémie de coqueluche dans le district sanitaire Tahoua département, Région de Tahoua, Niger, 2019: Etude descriptive des cas

Journal of Interventional Epidemiology and Public Health, 2021
Introduction: Au Niger, chaque année des épidémies de coqueluche sont rapportées. De 2015 à 2019, le pays a enregistré 2184 cas suspects de coqueluche. Le 27 février 2019, le CSI d'Afalla a notifié un nombre inhabituel des cas de toux quinteuse.
Issifou Djibo, Ibrahim Alkassoum, Bernard Sawadogo, Simon Antara, Saïdou Mamadou   +4 more
doaj   +1 more source

Bioconversion of eugenol into food flavouring agent vanillin [PDF]

, 2012
Microorganisms have the ability to chemically modify a wide variety of organic compounds by a process referred to as biological or microbial transformation, or in general, bioconversion.
Alok Somvanshi, Mahendra P. Darokar, Suaib Luqman, Suchita Srivastava, Sudeep Tandon, Suman P. S. Khanuja   +5 more
core   +2 more sources

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

Advanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese, Elena Feltri, Pietro Rossi, Valerio Galli, Cristiano Bortolotti, João Paulo Vita Damasceno, Ivan K. Ilic, Dario Natali, Alessandro Luzio, Adrica Kyndiah, Mario Caironi   +10 more
wiley   +1 more source

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

Advanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang, Jiaqi Zhang, Mei Cui, Wei Qi, Renliang Huang, Rongxin Su, Kai Zhang   +6 more
wiley   +1 more source

Review of the present state of the environment, fish stocks and fisheries of the river Niger (West Africa) [PDF]

, 2004
The Niger River is the fourth most important river in Africa. It is 4 200 km long with an estimated watershed area of 1 125 000 km2. It traverses a variety of ecological areas shared by a number of countries in the West African Region: Guinea, Mali ...
Laë, R., Mikolasek, Olivier, Morand, P., Williams, S.   +3 more
core  

Efficacy of atmospheric pressure dielectric barrier discharge for inactivating airborne pathogens [PDF]

, 2017
Atmospheric pressure plasmas have gained attention in recent years for several environmental applications. This technology could potentially be used to deactivate airborne microorganisms, surface-bound microorganisms, and biofilms.
Dey, Avishek, Diaz-Cartagena, Diana C., Gandhiraman, Ram P., Koehne, Jessica E., Krishnamurthy, Satheesh, Lopez-Nieves, Marjorie, Meyyappan, M., Nordlund, Dennis, Romero-Mangado, Jaione, Santiago-Garcia, Vilynette, Solis-Marcano, Nadja E   +10 more
core   +1 more source

Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes, Amanda M. Countryman, Dustin L. Pendell   +2 more
wiley   +1 more source

“I Got What I Came for”: A Qualitative Exploration into Family Planning Client Satisfaction in Dosso Region, Niger

Open Access Journal of Contraception, 2022
Lisa M Calhoun,1– 3 Amelia Maytan-Joneydi,1 Abdoul Moumouni Nouhou,4 Lenka Benova,3 Thérèse Delvaux,3 Thomas van den Akker,2,5 Balki Ibrahim Agali,4 Ilene S Speizer1,6 1Carolina Population Center, the University of North Carolina at Chapel Hill, Chapel ...
Calhoun LM, Maytan-Joneydi A, Nouhou AM, Benova L, Delvaux T, van den Akker T, Agali BI, Speizer IS   +7 more
doaj  

The politics of amnesty in Nigeria: a comparative analysis of the Boko Haram and Niger Delta insurgencies [PDF]

, 2014
Special Edition issue - Terrorism and Counter-Terrorism in Sub-Saharan AfricaThis paper presents a comparative analysis of the Niger Delta amnesty programme and the proposed amnesty for Boko Haram insurgents in Nigeria.
Nwankpa, Michael
core   +2 more sources