Results 71 to 80 of about 1,430,325 (267)

Natural resources, export structure and investment [PDF]

We present cross-country empirical evidence on the role of natural resources in explaining long-run differences in private investment as a share of GDP in a sample of 72 developing countries.
Adeel Malik, Stephen R. Bond
core  

An appraisal of the current status of the fisheries of Eleiyele Reservoir by its fisheries cooperatives [PDF]

, 2001
In a study undertaken to evaluate the status of the fisheries of Eleiyele Reservoir (Nigeria) between 1995 and 1997, thermal stratification was observed to breakdown between December and March.
Aladeojebi, E.A., Jeje, C.Y., Onogbosele, C.O.   +2 more
core  

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Effect of Bioinoculum and Crop Waste at the Concentration of N, P, K and the Sustainability of Natural Resources in Soil Planted with Wheat

IOP Conference Series: Earth and Environmental Science
Abstract For an evaluation the effect of bioinoculation and the process of mixing crops waste in the soil on the concentration of nutrients (nitrogen, phosphorus, potassium), a field study was carried out by cultivating a wheat crop(Triticum aestivum L.) in Sumer City (District 5 South Abu Manihil), Al-Diwaniyah Governorate central of ...
A M Al-Zayadi, R S Jarallah
openaire   +1 more source

First Nature vs. Second Nature Causes: Industry Location and Growth in the Presence of an Open-Access Renewable Resource [PDF]

In this paper we present a model integrating characteristics of the New Economic Geography, the theory of endogenous growth and the economy of natural resources. This theoretical framework enables us to study explicitly the effect of “first nature causes”
González-Val, Rafael, Pueyo, Fernando
core   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Analysis of proximate and porosity variations in collagen powder derived from natural resources: Thunnus albacares skin with different NaCl concentrations

IOP Conference Series: Earth and Environmental Science
Abstract Collagen from natural resources like yellowfin tuna skin (Thunnus albacares) skin is an alternative source of halal collagen that is rich in protein. The characterization of collagen starts with proximate tests like water, ash, protein, and fat content.
F Rahmitasari, D Sanjaya, TA Cevanti, W Prananingrum, null Sularsih   +4 more
openaire   +1 more source

A model based on the Rybczynski equation for Portugal. Another way [PDF]

We built a model analyzing the importance which the natural advantages and local resources are in the manufacturing industry location, in relation with the "spillovers" effects and industrial policies.
Martinho, Vítor João Pereira Domingues
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Antibacterial activity of chitosan from natural resource: Penaeus monodon shell with various concentrations and deacetylation degrees against Lactobacillus acidophilus

IOP Conference Series: Earth and Environmental Science
Abstract Lactobacillus acidophilus (L. acidophilus) is commonly found in the deep caries. Calcium hydroxide, a standard for direct pulp capping, has drawbacks such as tunnel defects. This study investigates the antibacterial activity of chitosan synthesized from Penaeus monodon (P.
W Prananingrum, null Sularsih, F Rahmitasari, D G Ramadan, P B Prabowo, E Radhianto, K Parisihni   +6 more
openaire   +1 more source